/* roulang page: index */
:root {
            --primary: #FF5A1F;
            --primary-dark: #E04A15;
            --secondary: #1DB954;
            --accent: #00E5FF;
            --bg: #0D0F12;
            --bg-elevated: #111418;
            --card-bg: #15181D;
            --card-bg-hover: #1A1E24;
            --text: #E8EAED;
            --text-muted: #8A9198;
            --text-dim: #5C6268;
            --border: #2A2E35;
            --border-light: #353A42;
            --radius: 8px;
            --radius-sm: 6px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
            --shadow-md: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.45);
            --glow-primary: 0 0 24px rgba(255,90,31,0.18);
            --glow-accent: 0 0 20px rgba(0,229,255,0.12);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font-heading: 'Orbitron','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-nav: 'Rajdhani','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-body: 'Roboto Condensed','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --section-pad: 80px 0;
        }

        * { box-sizing: border-box; }

        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

        body {
            margin: 0;
            padding: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
        a:hover, a:focus { color: var(--primary); text-decoration: none; outline: none; }
        button { font-family: inherit; cursor: pointer; }
        h1,h2,h3,h4,h5,h6 { font-family: var(--font-heading); font-weight: 900; color: var(--text); margin: 0 0 16px; line-height: 1.25; }
        h2 { font-size: 2rem; letter-spacing: -0.01em; }
        h3 { font-size: 1.35rem; letter-spacing: 0; }
        p { margin: 0 0 16px; color: var(--text-muted); }

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section { position: relative; padding: var(--section-pad); }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-label::before {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(255,90,31,0.5);
        }
        .section-label::after {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(255,90,31,0.5);
        }

        .section-title {
            font-size: 2rem;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            color: var(--text);
        }
        .section-title em {
            font-style: normal;
            color: var(--primary);
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 720px;
            margin-bottom: 32px;
        }

        /* ===== NAVBAR ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13,15,18,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0,0,0,0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            min-height: 68px;
            gap: 16px;
        }
        .nav-logo {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.7rem;
            color: var(--text);
            letter-spacing: 0.05em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-logo .logo-mark {
            color: var(--primary);
            font-size: 1.9rem;
        }
        .nav-logo:hover, .nav-logo:focus { color: var(--text); }
        .nav-logo span.ng {
            color: var(--primary);
            text-shadow: 0 0 16px rgba(255,90,31,0.5);
        }

        .nav-menu-wrapper {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li { position: relative; }
        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-menu a:hover {
            color: var(--text);
            background: rgba(255,90,31,0.08);
        }
        .nav-menu a.active {
            color: var(--primary);
            background: rgba(255,90,31,0.12);
            box-shadow: inset 0 0 0 1px rgba(255,90,31,0.2);
        }
        .nav-menu a i { font-size: 0.85rem; }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(255,90,31,0.35);
        }
        .nav-cta:hover {
            background: linear-gradient(135deg, var(--primary-dark), #C43D0D);
            color: #fff;
            box-shadow: 0 6px 24px rgba(255,90,31,0.5);
            transform: translateY(-2px);
        }
        .nav-cta:focus { outline: 2px solid var(--accent); outline-offset: 2px; }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: 6px;
            cursor: pointer;
            transition: background var(--transition);
        }
        .nav-toggle:hover { background: rgba(255,255,255,0.08); }

        .mobile-nav {
            display: none;
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            padding: 12px 24px 20px;
        }
        .mobile-nav.open { display: block; animation: fadeDown 0.3s ease; }
        .mobile-nav ul { list-style: none; margin: 0; padding: 0; }
        .mobile-nav li { border-bottom: 1px solid var(--border); }
        .mobile-nav li:last-child { border-bottom: none; }
        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 8px;
            color: var(--text-muted);
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 1rem;
            transition: color var(--transition);
        }
        .mobile-nav a:hover, .mobile-nav a.active { color: var(--primary); }
        .mobile-nav .nav-cta { margin-top: 14px; width: 100%; justify-content: center; }

        @keyframes fadeDown {
            from { opacity: 0; transform: translateY(-8px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ===== HERO ===== */
        .hero-section {
            min-height: 620px;
            display: flex;
            align-items: center;
            padding: 80px 0 60px;
            position: relative;
            background: url('/assets/images/bc4d31b1cc815cfe.webp') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13,15,18,0.75) 0%, rgba(13,15,18,0.92) 55%, rgba(13,15,18,0.98) 100%);
            z-index: 1;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: 
                repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,0.015) 2px, rgba(255,255,255,0.015) 4px);
            z-index: 2;
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 3;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }
        .hero-content h1 {
            font-size: 3.2rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.15;
            margin-bottom: 20px;
            color: #fff;
            text-shadow: 0 4px 24px rgba(0,0,0,0.6);
        }
        .hero-content h1 .hh-highlight {
            color: var(--primary);
            text-shadow: 0 0 32px rgba(255,90,31,0.55);
        }
        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-muted);
            max-width: 560px;
            margin-bottom: 28px;
            line-height: 1.8;
        }
        .hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 1rem;
            letter-spacing: 0.02em;
            border: none;
            transition: all var(--transition);
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 6px 24px rgba(255,90,31,0.4);
        }
        .btn-primary:hover {
            background: linear-gradient(135deg, var(--primary-dark), #C43D0D);
            color: #fff;
            box-shadow: 0 8px 32px rgba(255,90,31,0.55);
            transform: translateY(-2px);
        }
        .btn-ghost {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border-light);
            box-shadow: none;
        }
        .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255,90,31,0.06);
            transform: translateY(-2px);
        }
        .btn:focus { outline: 2px solid var(--accent); outline-offset: 2px; }

        .hero-trust {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        .trust-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            font-family: var(--font-nav);
            font-weight: 500;
        }
        .trust-item i { color: var(--secondary); font-size: 1rem; }

        .hero-selector {
            background: rgba(21,24,29,0.92);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-lg), var(--glow-primary);
            backdrop-filter: blur(8px);
        }
        .hero-selector .hs-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 6px;
            letter-spacing: 0.03em;
        }
        .hero-selector .hs-sub {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 18px;
        }
        .hs-group { margin-bottom: 16px; }
        .hs-group label {
            display: block;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text);
            margin-bottom: 6px;
            letter-spacing: 0.04em;
        }
        .hs-group select, .hs-group input {
            width: 100%;
            padding: 12px 14px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text);
            font-family: var(--font-body);
            font-size: 0.95rem;
            transition: border-color var(--transition);
        }
        .hs-group select:focus, .hs-group input:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 2px rgba(255,90,31,0.15);
        }
        .hs-result {
            background: rgba(0,229,255,0.05);
            border: 1px dashed rgba(0,229,255,0.3);
            border-radius: var(--radius-sm);
            padding: 12px 16px;
            margin-bottom: 16px;
            font-size: 0.9rem;
        }
        .hs-result .hsr-label {
            color: var(--accent);
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 0.04em;
            display: block;
            margin-bottom: 4px;
        }
        .hs-result .hsr-text {
            color: var(--text);
            font-size: 0.95rem;
            line-height: 1.5;
        }

        /* ===== DATA STRIP ===== */
        .data-strip {
            background: var(--bg-elevated);
            border-bottom: 1px solid var(--border);
            padding: 28px 0;
        }
        .data-strip-grid {
            display: grid;
            grid-template-columns: repeat(4,1fr);
            gap: 18px;
        }
        .data-strip-item {
            text-align: center;
            padding: 16px 12px;
            border-radius: var(--radius-sm);
            background: rgba(255,255,255,0.02);
            border: 1px solid var(--border);
            transition: border-color var(--transition);
        }
        .data-strip-item:hover { border-color: var(--primary); }
        .data-strip-item .ds-number {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 2rem;
            color: var(--primary);
            letter-spacing: 0.02em;
            line-height: 1.2;
        }
        .data-strip-item .ds-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-family: var(--font-nav);
            font-weight: 500;
            letter-spacing: 0.03em;
            margin-top: 4px;
        }

        /* ===== FEATURES ===== */
        .features-section { background: var(--bg); }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3,1fr);
            gap: 24px;
            margin-top: 16px;
        }
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: opacity var(--transition);
        }
        .feature-card:hover { 
            border-color: var(--primary);
            box-shadow: var(--shadow-md), var(--glow-primary);
            transform: translateY(-4px);
        }
        .feature-card:hover::before { opacity: 1; }
        .feature-card .fc-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            font-size: 1.5rem;
            margin-bottom: 18px;
            background: rgba(255,90,31,0.1);
            color: var(--primary);
            border: 1px solid rgba(255,90,31,0.25);
        }
        .feature-card:nth-child(2) .fc-icon {
            background: rgba(29,185,84,0.1);
            color: var(--secondary);
            border-color: rgba(29,185,84,0.25);
        }
        .feature-card:nth-child(3) .fc-icon {
            background: rgba(0,229,255,0.08);
            color: var(--accent);
            border-color: rgba(0,229,255,0.25);
        }
        .feature-card h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
            color: var(--text);
        }
        .feature-card p {
            font-size: 0.92rem;
            line-height: 1.7;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== SCENE DEMO ===== */
        .scene-section {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .scene-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .scene-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
            position: relative;
        }
        .scene-image img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }
        .scene-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(255,90,31,0.15) 0%, transparent 40%);
            pointer-events: none;
        }
        .scene-text h3 {
            font-size: 1.5rem;
            margin-bottom: 14px;
        }
        .scene-text p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .scene-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .tag {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-family: var(--font-nav);
            font-weight: 600;
            letter-spacing: 0.02em;
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border);
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .tag:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        /* ===== RANKING PREVIEW ===== */
        .ranking-section { background: var(--bg); }
        .ranking-grid {
            display: grid;
            grid-template-columns: repeat(4,1fr);
            gap: 16px;
        }
        .ranking-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 18px 16px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: all var(--transition);
        }
        .ranking-card:hover {
            border-color: var(--border-light);
            background: var(--card-bg-hover);
            box-shadow: var(--shadow-sm);
            transform: translateX(3px);
        }
        .ranking-card .rk-rank {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.6rem;
            color: var(--primary);
            min-width: 36px;
            text-align: center;
        }
        .ranking-card .rk-rank.rk-top { color: #FFD700; }
        .ranking-card .rk-info .rk-name {
            font-weight: 700;
            color: var(--text);
            font-size: 0.95rem;
            margin-bottom: 2px;
        }
        .ranking-card .rk-info .rk-stat {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-family: var(--font-nav);
            font-weight: 500;
        }
        .ranking-more {
            margin-top: 24px;
            display: flex;
            justify-content: flex-end;
        }
        .ranking-more a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(255,90,31,0.3);
            transition: all var(--transition);
        }
        .ranking-more a:hover {
            background: rgba(255,90,31,0.1);
            color: var(--primary);
            border-color: var(--primary);
        }

        /* ===== REVIEWS ===== */
        .reviews-section {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3,1fr);
            gap: 24px;
        }
        .review-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px 22px;
            transition: all var(--transition);
        }
        .review-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
        }
        .review-card .review-stars {
            color: #FFD700;
            font-size: 0.9rem;
            margin-bottom: 12px;
        }
        .review-card .review-text {
            font-size: 0.92rem;
            color: var(--text);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .review-card .review-author {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .review-card .review-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: #fff;
            font-size: 0.85rem;
        }
        .review-card .review-name {
            font-weight: 600;
            color: var(--text);
            font-size: 0.9rem;
        }
        .review-card .review-tag {
            font-size: 0.75rem;
            color: var(--text-dim);
            font-family: var(--font-nav);
            font-weight: 500;
        }

        /* ===== COMPARISON ===== */
        .compare-section { background: var(--bg); }
        .compare-table-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-md);
        }
        .compare-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--card-bg);
        }
        .compare-table th {
            padding: 16px 20px;
            text-align: left;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            color: var(--text);
            background: rgba(255,255,255,0.03);
            border-bottom: 1px solid var(--border);
        }
        .compare-table th:last-child { color: var(--primary); }
        .compare-table td {
            padding: 16px 20px;
            font-size: 0.9rem;
            color: var(--text-muted);
            border-bottom: 1px solid var(--border);
            line-height: 1.6;
        }
        .compare-table tr:last-child td { border-bottom: none; }
        .compare-table td:first-child {
            font-family: var(--font-nav);
            font-weight: 600;
            color: var(--text);
            font-size: 0.88rem;
            letter-spacing: 0.02em;
        }
        .compare-table td:last-child { color: var(--text); }
        .compare-table .ct-check {
            color: var(--secondary);
        }
        .compare-table .ct-x {
            color: var(--text-dim);
        }

        /* ===== NEWS ===== */
        .news-section {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3,1fr);
            gap: 20px;
        }
        .news-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }
        .news-card:hover {
            border-color: var(--border-light);
            box-shadow: var(--shadow-sm);
            transform: translateY(-3px);
        }
        .news-card .news-img {
            height: 160px;
            overflow: hidden;
        }
        .news-card .news-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-card .news-body {
            padding: 16px 18px 18px;
        }
        .news-card .news-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.75rem;
            color: var(--text-dim);
            font-family: var(--font-nav);
            font-weight: 500;
            margin-bottom: 8px;
        }
        .news-card .news-meta .news-tag {
            background: rgba(0,229,255,0.1);
            color: var(--accent);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 0.7rem;
            letter-spacing: 0.03em;
        }
        .news-card h4 {
            font-size: 1rem;
            font-family: var(--font-body);
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .news-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-section { background: var(--bg); }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover { border-color: var(--border-light); }
        .faq-item.open { border-color: var(--primary); box-shadow: var(--glow-primary); }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            background: none;
            border: none;
            color: var(--text);
            font-family: var(--font-body);
            font-weight: 600;
            font-size: 1rem;
            text-align: left;
            cursor: pointer;
            transition: color var(--transition);
        }
        .faq-question:hover { color: var(--primary); }
        .faq-question .faq-icon {
            font-size: 1rem;
            transition: transform var(--transition);
            color: var(--text-muted);
        }
        .faq-item.open .faq-icon { transform: rotate(45deg); color: var(--primary); }
        .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; animation: fadeDown 0.25s ease; }

        /* ===== GUARANTEE ===== */
        .guarantee-section {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .guarantee-grid {
            display: grid;
            grid-template-columns: repeat(4,1fr);
            gap: 20px;
        }
        .guarantee-item {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 18px;
            background: rgba(255,255,255,0.02);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .guarantee-item:hover { border-color: var(--secondary); background: rgba(29,185,84,0.04); }
        .guarantee-item i {
            font-size: 1.4rem;
            color: var(--secondary);
            margin-top: 4px;
        }
        .guarantee-item .gi-title {
            font-weight: 700;
            color: var(--text);
            font-size: 0.92rem;
            margin-bottom: 4px;
        }
        .guarantee-item .gi-desc {
            font-size: 0.8rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 0;
        }

        /* ===== BRAND INTRO ===== */
        .brand-section { background: var(--bg); }
        .brand-block {
            max-width: 800px;
            margin: 0 auto;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            box-shadow: var(--shadow-md);
        }
        .brand-block h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: var(--text);
        }
        .brand-block p {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.85;
            margin-bottom: 12px;
        }
        .brand-block p:last-child { margin-bottom: 0; }
        .brand-block .bb-highlight {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== CATEGORY ENTRY ===== */
        .category-entry-section {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .category-entry-grid {
            display: grid;
            grid-template-columns: repeat(3,1fr);
            gap: 20px;
        }
        .cat-entry-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            transition: all var(--transition);
            display: block;
        }
        .cat-entry-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md), var(--glow-primary);
            transform: translateY(-4px);
        }
        .cat-entry-card .ce-image {
            height: 140px;
            overflow: hidden;
            position: relative;
        }
        .cat-entry-card .ce-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        .cat-entry-card:hover .ce-image img { transform: scale(1.05); }
        .cat-entry-card .ce-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(13,15,18,0.85) 100%);
        }
        .cat-entry-card .ce-body {
            padding: 16px 18px 18px;
            position: relative;
        }
        .cat-entry-card .ce-body .ce-title {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text);
            margin-bottom: 6px;
            font-family: var(--font-nav);
            letter-spacing: 0.02em;
        }
        .cat-entry-card .ce-body .ce-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 0;
        }
        .cat-entry-card .ce-arrow {
            position: absolute;
            bottom: 18px;
            right: 18px;
            color: var(--primary);
            font-size: 1.1rem;
            opacity: 0;
            transition: opacity var(--transition);
        }
        .cat-entry-card:hover .ce-arrow { opacity: 1; }

        /* ===== RULES ===== */
        .rules-section { background: var(--bg); }
        .rules-grid {
            display: grid;
            grid-template-columns: repeat(4,1fr);
            gap: 20px;
            counter-reset: rule-counter;
        }
        .rule-item {
            position: relative;
            padding: 24px 18px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            text-align: center;
            transition: all var(--transition);
            counter-increment: rule-counter;
        }
        .rule-item:hover {
            border-color: var(--accent);
            box-shadow: var(--glow-accent);
        }
        .rule-item::before {
            content: counter(rule-counter, decimal-leading-zero);
            display: block;
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.8rem;
            color: rgba(0,229,255,0.25);
            margin-bottom: 10px;
        }
        .rule-item h4 {
            font-size: 0.98rem;
            font-family: var(--font-body);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .rule-item p {
            font-size: 0.82rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 0;
        }

        /* ===== CTA SECTION ===== */
        .cta-final-section {
            background: url('/assets/images/031e2d44c04f6b9c.webp') center/cover no-repeat;
            position: relative;
            padding: 80px 0;
        }
        .cta-final-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13,15,18,0.92) 0%, rgba(13,15,18,0.75) 50%, rgba(13,15,18,0.95) 100%);
        }
        .cta-final-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-final-inner h3 {
            font-size: 2rem;
            margin-bottom: 16px;
            color: #fff;
        }
        .cta-final-inner p {
            font-size: 1rem;
            color: var(--text-muted);
            margin-bottom: 24px;
            line-height: 1.7;
        }
        .cta-final-inner .btn {
            font-size: 1.05rem;
            padding: 16px 34px;
        }

        /* ===== SUBSCRIBE ===== */
        .subscribe-section { background: var(--bg); }
        .subscribe-box {
            max-width: 640px;
            margin: 0 auto;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-md);
        }
        .subscribe-box h3 {
            font-size: 1.3rem;
            margin-bottom: 8px;
        }
        .subscribe-box p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 200px;
            padding: 13px 16px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text);
            font-family: var(--font-body);
            font-size: 0.95rem;
            transition: border-color var(--transition);
        }
        .subscribe-form input:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 2px rgba(255,90,31,0.15);
        }
        .subscribe-form .btn {
            padding: 13px 24px;
            white-space: nowrap;
        }

        /* ===== STICKY BOTTOM BAR ===== */
        .sticky-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(21,24,29,0.97);
            backdrop-filter: blur(12px);
            border-top: 1px solid var(--border);
            padding: 10px 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            transform: translateY(100%);
            transition: transform 0.35s ease;
            box-shadow: 0 -8px 32px rgba(0,0,0,0.45);
        }
        .sticky-cta.visible { transform: translateY(0); }
        .sticky-cta .sc-text {
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
            letter-spacing: 0.02em;
        }
        .sticky-cta .sc-text span {
            color: var(--primary);
        }
        .sticky-cta .btn {
            padding: 10px 20px;
            font-size: 0.88rem;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            padding: 48px 0 32px;
            margin-bottom: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h4 {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 900;
            color: var(--text);
            margin-bottom: 10px;
        }
        .footer-brand h4 span { color: var(--primary); }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 300px;
        }
        .footer-col h5 {
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.04em;
            color: var(--text);
            margin-bottom: 14px;
            text-transform: uppercase;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col ul a:hover { color: var(--primary); }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-dim);
        }
        .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-bottom a:hover { color: var(--primary); }
        .footer-bottom .fb-links {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .hero-inner { grid-template-columns: 1fr; gap: 36px; }
            .hero-content h1 { font-size: 2.5rem; }
            .features-grid { grid-template-columns: repeat(2,1fr); }
            .scene-grid { grid-template-columns: 1fr; gap: 24px; }
            .ranking-grid { grid-template-columns: repeat(2,1fr); }
            .reviews-grid { grid-template-columns: repeat(2,1fr); }
            .news-grid { grid-template-columns: repeat(2,1fr); }
            .category-entry-grid { grid-template-columns: repeat(2,1fr); }
            .rules-grid { grid-template-columns: repeat(2,1fr); }
            .guarantee-grid { grid-template-columns: repeat(2,1fr); }
            .data-strip-grid { grid-template-columns: repeat(2,1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }

        @media (max-width: 768px) {
            .section-pad { padding: 48px 0; }
            h2 { font-size: 1.6rem; }
            .section-title { font-size: 1.6rem; }
            .hero-section { min-height: auto; padding: 48px 0 40px; }
            .hero-content h1 { font-size: 2rem; }
            .hero-subtitle { font-size: 1rem; }
            .hero-cta-group { flex-direction: column; }
            .btn { width: 100%; }
            .nav-menu-wrapper { display: none; }
            .nav-toggle { display: block; }
            .header-inner { flex-wrap: wrap; }
            .nav-cta-desktop { display: none; }
            .mobile-nav { display: none; }
            .mobile-nav.open { display: block; }
            .features-grid { grid-template-columns: 1fr; }
            .ranking-grid { grid-template-columns: 1fr; }
            .reviews-grid { grid-template-columns: 1fr; }
            .news-grid { grid-template-columns: 1fr; }
            .category-entry-grid { grid-template-columns: 1fr; }
            .rules-grid { grid-template-columns: 1fr; }
            .guarantee-grid { grid-template-columns: 1fr; }
            .data-strip-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
            .compare-table th, .compare-table td { padding: 10px 12px; font-size: 0.8rem; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .sticky-cta { padding: 8px 14px; gap: 8px; }
            .sticky-cta .sc-text { font-size: 0.8rem; }
        }

        @media (max-width: 520px) {
            .container-main { padding: 0 16px; }
            .hero-content h1 { font-size: 1.7rem; }
            .hero-selector { padding: 20px 16px; }
            .subscribe-form { flex-direction: column; }
            .subscribe-form input { min-width: auto; width: 100%; }
            .subscribe-form .btn { width: 100%; }
            .data-strip-grid { grid-template-columns: 1fr 1fr; }
            .data-strip-item .ds-number { font-size: 1.5rem; }
            .compare-table-wrap { overflow-x: auto; }
            .compare-table { min-width: 500px; }
        }

        @media (min-width: 769px) {
            .mobile-nav { display: none !important; }
        }

/* roulang page: category2 */
:root {
            --primary: #FF5A1F;
            --primary-dark: #E04A15;
            --secondary: #1DB954;
            --accent: #00E5FF;
            --bg: #0D0F12;
            --bg-elevated: #111418;
            --card-bg: #15181D;
            --card-bg-hover: #1A1E24;
            --text: #E8EAED;
            --text-muted: #8A9198;
            --text-dim: #5C6268;
            --border: #2A2E35;
            --border-light: #353A42;
            --radius: 8px;
            --radius-sm: 6px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
            --shadow-md: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.45);
            --glow-primary: 0 0 24px rgba(255,90,31,0.18);
            --glow-accent: 0 0 20px rgba(0,229,255,0.12);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font-heading: 'Orbitron','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-nav: 'Rajdhani','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-body: 'Roboto Condensed','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --section-pad: 72px 0;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            padding: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition), background var(--transition), box-shadow var(--transition), transform var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--primary);
            text-decoration: none;
            outline: none;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 0.95rem;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 16px;
            color: var(--text);
        }

        h1 {
            font-size: 2.6rem;
            font-weight: 900;
            letter-spacing: -0.01em;
        }

        h2 {
            font-size: 2rem;
            font-weight: 900;
        }

        h3 {
            font-size: 1.25rem;
            font-weight: 700;
        }

        p {
            margin: 0 0 16px;
            color: var(--text-muted);
        }

        ul, ol {
            margin: 0 0 16px;
            padding-left: 20px;
            color: var(--text-muted);
        }

        li {
            margin-bottom: 8px;
        }

        section {
            position: relative;
            padding: var(--section-pad);
        }

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-label::before,
        .section-label::after {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(255,90,31,0.5);
        }
        .section-title {
            font-size: 2rem;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            color: var(--text);
        }
        .section-title em {
            font-style: normal;
            color: var(--primary);
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 720px;
            margin-bottom: 32px;
        }

        /* ===== NAVBAR ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13,15,18,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0,0,0,0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            min-height: 68px;
            gap: 16px;
        }
        .nav-logo {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.7rem;
            color: var(--text);
            letter-spacing: 0.05em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-logo .logo-mark {
            color: var(--primary);
            font-size: 1.9rem;
        }
        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--text);
        }
        .nav-logo span.ng {
            color: var(--primary);
            text-shadow: 0 0 16px rgba(255,90,31,0.5);
        }
        .nav-menu-wrapper {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li {
            position: relative;
            margin: 0;
        }
        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-menu a:hover {
            color: var(--text);
            background: rgba(255,90,31,0.08);
        }
        .nav-menu a.active {
            color: var(--primary);
            background: rgba(255,90,31,0.12);
            box-shadow: inset 0 0 0 1px rgba(255,90,31,0.2);
        }
        .nav-menu a i {
            font-size: 0.85rem;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            color: #0D0F12;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(255,90,31,0.3);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-cta:hover {
            color: #0D0F12;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255,90,31,0.45);
        }
        .nav-cta:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .nav-cta-desktop {
            display: inline-flex;
        }
        .nav-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            font-size: 1.3rem;
            color: var(--text);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255,90,31,0.08);
        }

        .mobile-nav {
            display: none;
            background: var(--bg-elevated);
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }
        .mobile-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .mobile-nav li {
            margin: 0;
        }
        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 24px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .mobile-nav a:hover {
            color: var(--text);
            background: rgba(255,90,31,0.08);
        }
        .mobile-nav a.active {
            color: var(--primary);
            background: rgba(255,90,31,0.12);
        }
        .mobile-nav .nav-cta {
            margin: 8px 24px;
            justify-content: center;
        }

        /* ===== CATEGORY HERO (BANNER) ===== */
        .category-banner {
            position: relative;
            padding: 72px 0 56px;
            background: var(--bg-elevated);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255,90,31,0.07) 0%, transparent 55%, rgba(0,229,255,0.04) 100%);
            pointer-events: none;
        }
        .category-banner .banner-bg-img {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/bc4d31b1cc815cfe.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }
        .category-banner .container-main {
            position: relative;
            z-index: 2;
        }
        .category-banner .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.8rem;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--accent);
            background: rgba(0,229,255,0.08);
            border: 1px solid rgba(0,229,255,0.25);
            border-radius: 20px;
            padding: 4px 14px;
            margin-bottom: 16px;
        }
        .category-banner h1 {
            font-size: 2.8rem;
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
        }
        .category-banner h1::after {
            content: '';
            display: block;
            width: 64px;
            height: 3px;
            background: var(--primary);
            margin-top: 12px;
            border-radius: 2px;
            box-shadow: 0 0 12px rgba(255,90,31,0.5);
        }
        .category-banner .banner-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 640px;
            margin-bottom: 0;
        }

        /* ===== FILTER TOOLBAR ===== */
        .filter-toolbar {
            background: var(--bg-elevated);
            border-bottom: 1px solid var(--border);
            padding: 20px 0;
            position: sticky;
            top: 68px;
            z-index: 50;
        }
        .filter-toolbar .container-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .filter-label {
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-muted);
            letter-spacing: 0.05em;
            margin-right: 4px;
            text-transform: uppercase;
        }
        .filter-btn {
            padding: 7px 16px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-muted);
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 20px;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-btn:hover {
            color: var(--text);
            border-color: var(--border-light);
            background: var(--card-bg-hover);
        }
        .filter-btn.active {
            color: var(--primary);
            border-color: var(--primary);
            background: rgba(255,90,31,0.1);
            box-shadow: 0 0 12px rgba(255,90,31,0.15);
        }
        .filter-btn:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== CARDS GRID ===== */
        .cards-section {
            background: var(--bg);
        }
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .strategy-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .strategy-card:hover {
            transform: translateY(-2px);
            border-color: rgba(255,90,31,0.3);
            background: var(--card-bg-hover);
            box-shadow: var(--shadow-md), var(--glow-primary);
        }
        .strategy-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--bg-elevated);
        }
        .strategy-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .strategy-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }
        .strategy-card .card-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(13,15,18,0.8) 100%);
            pointer-events: none;
        }
        .strategy-card .card-difficulty {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.75rem;
            letter-spacing: 0.06em;
            text-transform: uppercase;
            padding: 4px 12px;
            border-radius: 4px;
            color: #0D0F12;
        }
        .strategy-card .card-difficulty.beginner {
            background: var(--secondary);
        }
        .strategy-card .card-difficulty.intermediate {
            background: var(--accent);
        }
        .strategy-card .card-difficulty.advanced {
            background: var(--primary);
        }
        .strategy-card .card-body {
            padding: 20px 20px 16px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .strategy-card .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text);
            line-height: 1.4;
        }
        .strategy-card .card-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 14px;
            flex: 1;
        }
        .strategy-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            padding-top: 12px;
            border-top: 1px solid var(--border);
            font-size: 0.8rem;
            color: var(--text-dim);
        }
        .strategy-card .card-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .strategy-card .card-meta i {
            font-size: 0.75rem;
        }
        .strategy-card .card-tag {
            display: inline-block;
            padding: 2px 10px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.75rem;
            border-radius: 4px;
            background: rgba(255,90,31,0.1);
            color: var(--primary);
            border: 1px solid rgba(255,90,31,0.2);
        }

        /* ===== FEATURED / HOT TOPICS ===== */
        .featured-section {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .featured-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            position: relative;
        }
        .featured-card:hover {
            transform: translateY(-2px);
            border-color: rgba(0,229,255,0.3);
            box-shadow: var(--shadow-md), var(--glow-accent);
        }
        .featured-card .featured-img {
            width: 100%;
            aspect-ratio: 21/9;
            object-fit: cover;
        }
        .featured-card .featured-body {
            padding: 20px;
        }
        .featured-card .featured-tag {
            display: inline-block;
            padding: 3px 12px;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.75rem;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            border-radius: 16px;
            background: rgba(0,229,255,0.1);
            color: var(--accent);
            border: 1px solid rgba(0,229,255,0.25);
            margin-bottom: 10px;
        }
        .featured-card .featured-title {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .featured-card .featured-desc {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
        }

        /* ===== DATA OVERVIEW ===== */
        .data-section {
            background: var(--bg);
        }
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .data-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition);
        }
        .data-card:hover {
            transform: translateY(-2px);
            border-color: rgba(255,90,31,0.25);
            box-shadow: var(--shadow-sm), var(--glow-primary);
        }
        .data-card .data-icon {
            font-size: 1.6rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .data-card .data-number {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--text);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .data-card .data-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .data-card .data-unit {
            font-size: 0.9rem;
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-light);
        }
        .faq-item.is-active {
            border-color: rgba(255,90,31,0.3);
            box-shadow: var(--glow-primary);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 20px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            background: transparent;
            width: 100%;
            text-align: left;
            transition: all var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .faq-icon {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.is-active .faq-question .faq-icon {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-item.is-active .faq-answer {
            max-height: 400px;
        }
        .faq-answer p {
            padding: 0 20px 18px;
            margin: 0;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== CTA SECTION ===== */
        .cta-section {
            background: var(--bg);
        }
        .cta-panel {
            background: linear-gradient(135deg, rgba(255,90,31,0.08) 0%, rgba(0,229,255,0.04) 100%);
            border: 1px solid rgba(255,90,31,0.2);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }
        .cta-panel .cta-text h3 {
            font-size: 1.5rem;
            margin-bottom: 8px;
        }
        .cta-panel .cta-text p {
            margin-bottom: 0;
            max-width: 520px;
        }
        .cta-panel .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #0D0F12;
            box-shadow: 0 4px 16px rgba(255,90,31,0.3);
        }
        .btn-primary:hover {
            color: #0D0F12;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255,90,31,0.45);
        }
        .btn-ghost {
            background: transparent;
            color: var(--text);
            border: 1px solid var(--border-light);
        }
        .btn-ghost:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255,90,31,0.08);
            transform: translateY(-2px);
        }
        .btn:focus {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        .cta-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 16px;
        }
        .cta-form input[type="email"],
        .cta-form input[type="text"] {
            flex: 1;
            min-width: 220px;
            padding: 11px 16px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text);
            transition: all var(--transition);
            font-size: 0.95rem;
        }
        .cta-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255,90,31,0.15);
        }
        .cta-form input::placeholder {
            color: var(--text-dim);
        }

        /* ===== RELATED CATEGORIES ===== */
        .related-section {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 20px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: all var(--transition);
            color: var(--text);
        }
        .related-card:hover {
            transform: translateY(-2px);
            border-color: var(--primary);
            color: var(--text);
            box-shadow: var(--shadow-sm), var(--glow-primary);
        }
        .related-card .related-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255,90,31,0.1);
            border-radius: var(--radius-sm);
            font-size: 1.3rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        .related-card .related-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .related-card .related-info p {
            font-size: 0.85rem;
            margin-bottom: 0;
            color: var(--text-muted);
        }

        /* ===== STICKY BOTTOM BAR ===== */
        .sticky-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(13,15,18,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border);
            padding: 12px 0;
            transform: translateY(100%);
            transition: transform 0.35s ease;
            box-shadow: 0 -4px 24px rgba(0,0,0,0.4);
        }
        .sticky-cta.visible {
            transform: translateY(0);
        }
        .sticky-cta .container-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }
        .sticky-cta .sticky-info {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 1;
            min-width: 200px;
        }
        .sticky-cta .sticky-info .sticky-icon {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255,90,31,0.15);
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
            color: var(--primary);
        }
        .sticky-cta .sticky-info .sticky-text strong {
            display: block;
            font-family: var(--font-nav);
            font-size: 0.95rem;
            color: var(--text);
        }
        .sticky-cta .sticky-info .sticky-text span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .sticky-cta .sticky-actions {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .sticky-cta .btn {
            padding: 10px 20px;
            font-size: 0.85rem;
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            padding: 56px 0 32px;
            margin-bottom: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h4 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.5rem;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: 0.05em;
        }
        .footer-brand h4 span {
            color: var(--primary);
            text-shadow: 0 0 16px rgba(255,90,31,0.4);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 300px;
        }
        .footer-col h5 {
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.05em;
            color: var(--text);
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-dim);
        }
        .footer-bottom span {
            white-space: nowrap;
        }
        .fb-links {
            display: flex;
            gap: 16px;
        }
        .fb-links a {
            font-size: 0.8rem;
            color: var(--text-dim);
        }
        .fb-links a:hover {
            color: var(--primary);
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .cards-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .nav-menu {
                gap: 2px;
            }
            .nav-menu a {
                padding: 10px 10px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 768px) {
            .nav-menu-wrapper {
                display: none;
            }
            .nav-cta-desktop {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .mobile-nav {
                display: block;
            }
            .mobile-nav.is-open {
                display: block;
            }
            .header-inner {
                gap: 12px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .category-banner {
                padding: 48px 0 36px;
            }
            .category-banner h1 {
                font-size: 2rem;
            }
            .filter-toolbar {
                top: 60px;
            }
            .filter-toolbar .container-main {
                flex-direction: column;
                align-items: flex-start;
            }
            .cards-grid {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-panel {
                flex-direction: column;
                align-items: flex-start;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .sticky-cta .container-main {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .sticky-cta .sticky-actions {
                width: 100%;
            }
            .sticky-cta .btn {
                flex: 1;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container-main {
                padding: 0 16px;
            }
            section {
                padding: 48px 0;
            }
            :root {
                --section-pad: 48px 0;
            }
            h1 {
                font-size: 1.7rem;
            }
            .category-banner h1 {
                font-size: 1.7rem;
            }
            .data-grid {
                grid-template-columns: 1fr;
            }
            .card-grid {
                gap: 16px;
            }
            .cards-grid {
                gap: 16px;
            }
            .featured-grid {
                gap: 16px;
            }
            .related-grid {
                gap: 16px;
            }
            .filter-btn {
                padding: 6px 12px;
                font-size: 0.8rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
            .sticky-cta {
                padding: 8px 0;
            }
            .sticky-cta .sticky-info .sticky-text strong {
                font-size: 0.85rem;
            }
            .sticky-cta .btn {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .footer-bottom span {
                font-size: 0.7rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #FF5A1F;
            --primary-dark: #E04A15;
            --secondary: #1DB954;
            --accent: #00E5FF;
            --bg: #0D0F12;
            --bg-elevated: #111418;
            --card-bg: #15181D;
            --card-bg-hover: #1A1E24;
            --text: #E8EAED;
            --text-muted: #8A9198;
            --text-dim: #5C6268;
            --border: #2A2E35;
            --border-light: #353A42;
            --radius: 8px;
            --radius-sm: 6px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
            --shadow-md: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.45);
            --glow-primary: 0 0 24px rgba(255,90,31,0.18);
            --glow-accent: 0 0 20px rgba(0,229,255,0.12);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font-heading: 'Orbitron','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-nav: 'Rajdhani','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-body: 'Roboto Condensed','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --section-pad: 80px 0;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            margin: 0;
            padding: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
            padding-bottom: 68px;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--accent); text-decoration: none; transition: color var(--transition), background var(--transition), box-shadow var(--transition); }
        a:hover, a:focus { color: var(--primary); text-decoration: none; outline: none; }
        button { font-family: inherit; cursor: pointer; }
        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section { position: relative; padding: var(--section-pad); }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-label::before,
        .section-label::after {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(255,90,31,0.5);
        }
        .section-title {
            font-family: var(--font-heading);
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            color: var(--text);
            line-height: 1.3;
        }
        .section-title em {
            font-style: normal;
            color: var(--primary);
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        /* ===== NAVBAR ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13,15,18,0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.5); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            min-height: 68px;
            gap: 16px;
        }
        .nav-logo {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.7rem;
            color: var(--text);
            letter-spacing: 0.05em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color var(--transition);
        }
        .nav-logo .logo-mark { color: var(--primary); font-size: 1.9rem; }
        .nav-logo:hover, .nav-logo:focus { color: var(--text); }
        .nav-logo span.ng { color: var(--primary); text-shadow: 0 0 16px rgba(255,90,31,0.5); }
        .nav-menu-wrapper {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li { position: relative; }
        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 12px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.92rem;
            letter-spacing: 0.02em;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-menu a:hover {
            color: var(--text);
            background: rgba(255,90,31,0.08);
        }
        .nav-menu a.active {
            color: var(--primary);
            background: rgba(255,90,31,0.12);
            box-shadow: inset 0 0 0 1px rgba(255,90,31,0.2);
        }
        .nav-menu a i { font-size: 0.82rem; }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            color: #fff;
            background: linear-gradient(135deg, var(--primary) 0%, #FF7A3D 100%);
            border-radius: var(--radius-sm);
            border: none;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: 0 2px 12px rgba(255,90,31,0.3);
        }
        .nav-cta:hover, .nav-cta:focus {
            color: #fff;
            background: linear-gradient(135deg, #FF6B2A 0%, #FF8A4D 100%);
            box-shadow: 0 4px 20px rgba(255,90,31,0.45);
            transform: translateY(-1px);
        }
        .nav-cta-desktop { display: inline-flex; }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text);
            font-size: 1.3rem;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .nav-toggle:hover { border-color: var(--primary); color: var(--primary); }
        .mobile-nav {
            display: none;
            background: rgba(13,15,18,0.98);
            border-bottom: 1px solid var(--border);
            padding: 16px 24px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav ul {
            list-style: none;
            margin: 0 0 12px 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .mobile-nav a:hover { color: var(--text); background: rgba(255,90,31,0.08); }
        .mobile-nav a.active { color: var(--primary); background: rgba(255,90,31,0.12); }
        .mobile-nav .nav-cta { justify-content: center; margin-top: 8px; width: 100%; display: flex; }

        @media (max-width: 1024px) {
            .nav-menu-wrapper { display: none; }
            .nav-cta-desktop { display: none; }
            .nav-toggle { display: inline-flex; }
            .mobile-nav.is-open { display: flex; }
        }

        /* ===== CATEGORY HERO BANNER ===== */
        .cat-hero {
            padding: 48px 0 40px;
            background: linear-gradient(180deg, rgba(255,90,31,0.06) 0%, transparent 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .cat-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/bc4d31b1cc815cfe.webp') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
            pointer-events: none;
        }
        .cat-hero .container-main { position: relative; z-index: 1; }
        .cat-hero h1 {
            font-family: var(--font-heading);
            font-size: 2.6rem;
            font-weight: 900;
            letter-spacing: 0.02em;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .cat-hero h1 .accent { color: var(--primary); }
        .cat-hero p {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 680px;
            margin-bottom: 0;
            line-height: 1.8;
        }
        .cat-hero .cat-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 18px;
        }
        .cat-hero .cat-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-muted);
            font-family: var(--font-nav);
            font-weight: 500;
        }
        .cat-hero .cat-meta i { color: var(--primary); }

        /* ===== FILTER TOOLBAR ===== */
        .filter-toolbar {
            padding: 20px 0;
            background: var(--bg-elevated);
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 68px;
            z-index: 90;
        }
        .filter-toolbar .container-main {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
        }
        .filter-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }
        .filter-label {
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            white-space: nowrap;
        }
        .filter-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text-muted);
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-btn:hover {
            color: var(--text);
            border-color: var(--border-light);
            background: var(--card-bg-hover);
        }
        .filter-btn.active {
            color: var(--primary);
            border-color: rgba(255,90,31,0.4);
            background: rgba(255,90,31,0.1);
            box-shadow: 0 0 12px rgba(255,90,31,0.15);
        }
        .sort-select {
            appearance: none;
            -webkit-appearance: none;
            padding: 8px 36px 8px 16px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--text);
            background: var(--card-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238A9198' d='M6 8L1 3h10z'/%3E%3C/svg%3E") no-repeat right 14px center;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition);
            min-width: 140px;
        }
        .sort-select:hover { border-color: var(--border-light); }
        .sort-select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(255,90,31,0.15); }

        /* ===== CARD LIST ===== */
        .list-section { padding-top: 48px; }
        .event-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .event-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
        }
        .event-card:hover {
            background: var(--card-bg-hover);
            border-color: rgba(255,90,31,0.35);
            box-shadow: var(--shadow-md), var(--glow-primary);
            transform: translateY(-2px);
        }
        .event-card .card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #1a1e24;
        }
        .event-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
        }
        .event-card:hover .card-img img { transform: scale(1.05); }
        .event-card .card-img .badge-overlay {
            position: absolute;
            top: 10px;
            left: 10px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 10px;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.75rem;
            letter-spacing: 0.05em;
            text-transform: uppercase;
            color: #fff;
            background: rgba(255,90,31,0.9);
            border-radius: 4px;
            z-index: 2;
        }
        .event-card .card-body {
            padding: 18px 18px 16px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-bottom: 10px;
        }
        .event-card .card-tags .tag {
            display: inline-block;
            padding: 2px 10px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-muted);
            background: rgba(255,255,255,0.04);
            border: 1px solid var(--border);
            border-radius: 20px;
            letter-spacing: 0.03em;
        }
        .event-card .card-tags .tag.highlight {
            color: var(--accent);
            border-color: rgba(0,229,255,0.3);
            background: rgba(0,229,255,0.06);
        }
        .event-card h3 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.4;
            color: var(--text);
        }
        .event-card h3 a {
            color: var(--text);
            transition: color var(--transition);
        }
        .event-card h3 a:hover { color: var(--primary); }
        .event-card .card-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin-bottom: 12px;
            flex: 1;
        }
        .event-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-dim);
            border-top: 1px solid var(--border);
            padding-top: 10px;
        }
        .event-card .card-meta .date { display: inline-flex; align-items: center; gap: 5px; }
        .event-card .card-meta .source { display: inline-flex; align-items: center; gap: 5px; }

        @media (max-width: 1024px) {
            .event-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 640px) {
            .event-grid { grid-template-columns: 1fr; }
        }

        .btn-outline-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            color: var(--primary);
            background: transparent;
            border: 1px solid rgba(255,90,31,0.45);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }
        .btn-outline-primary:hover {
            color: #fff;
            background: rgba(255,90,31,0.12);
            border-color: var(--primary);
            box-shadow: 0 0 16px rgba(255,90,31,0.2);
            transform: translateY(-1px);
        }
        .btn-solid-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            color: #fff;
            background: linear-gradient(135deg, var(--primary) 0%, #FF7A3D 100%);
            border: none;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: 0 2px 12px rgba(255,90,31,0.3);
        }
        .btn-solid-primary:hover {
            background: linear-gradient(135deg, #FF6B2A 0%, #FF8A4D 100%);
            box-shadow: 0 4px 20px rgba(255,90,31,0.45);
            transform: translateY(-1px);
            color: #fff;
        }

        /* ===== FEATURED TOPICS ===== */
        .featured-section { background: var(--bg-elevated); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .featured-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            border-color: rgba(0,229,255,0.3);
            box-shadow: var(--shadow-md), var(--glow-accent);
            transform: translateY(-2px);
        }
        .featured-card .f-img {
            aspect-ratio: 16/7;
            overflow: hidden;
            background: #1a1e24;
        }
        .featured-card .f-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }
        .featured-card:hover .f-img img { transform: scale(1.04); }
        .featured-card .f-body { padding: 16px 18px; }
        .featured-card h3 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.4;
            color: var(--text);
        }
        .featured-card .f-desc {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 8px;
        }
        @media (max-width: 1024px) {
            .featured-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 640px) {
            .featured-grid { grid-template-columns: 1fr; }
        }

        /* ===== STATS OVERVIEW ===== */
        .stats-section { background: var(--bg); }
        .stats-panel {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            box-shadow: var(--shadow-sm);
        }
        .stat-item {
            text-align: center;
            padding: 12px 8px;
            border-right: 1px solid var(--border);
            transition: all var(--transition);
        }
        .stat-item:last-child { border-right: none; }
        .stat-item:hover { background: rgba(255,90,31,0.04); border-radius: var(--radius-sm); }
        .stat-item .stat-value {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary);
            letter-spacing: 0.02em;
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-family: var(--font-nav);
            font-weight: 600;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        @media (max-width: 768px) {
            .stats-panel { grid-template-columns: repeat(2, 1fr); gap: 8px; }
            .stat-item { border-right: none; border-bottom: 1px solid var(--border); padding: 10px 4px; }
            .stat-item:nth-child(3), .stat-item:nth-child(4) { border-bottom: none; }
            .stat-item .stat-value { font-size: 1.6rem; }
        }
        @media (max-width: 520px) {
            .stats-panel { grid-template-columns: 1fr 1fr; }
        }

        /* ===== FAQ ===== */
        .faq-section { background: var(--bg-elevated); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
        .faq-accordion {
            max-width: 840px;
            margin: 0 auto;
        }
        .faq-accordion .accordion {
            background: transparent;
            border: none;
        }
        .faq-accordion .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-accordion .accordion-item:hover {
            border-color: var(--border-light);
        }
        .faq-accordion .accordion-item.is-active {
            border-color: rgba(255,90,31,0.3);
            box-shadow: var(--glow-primary), var(--shadow-sm);
        }
        .faq-accordion .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
            background: transparent;
            border: none;
            cursor: pointer;
            transition: color var(--transition);
            line-height: 1.5;
        }
        .faq-accordion .accordion-title:hover { color: var(--primary); }
        .faq-accordion .accordion-title::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-accordion .accordion-item.is-active .accordion-title::after {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-accordion .accordion-content {
            padding: 0 20px 18px;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.75;
            border-top: none;
        }

        /* ===== SUBSCRIBE CTA ===== */
        .subscribe-section {
            background: linear-gradient(135deg, rgba(255,90,31,0.08) 0%, rgba(0,229,255,0.05) 100%);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .subscribe-box {
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
            padding: 8px 0;
        }
        .subscribe-box h2 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text);
        }
        .subscribe-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            padding: 14px 18px;
            font-family: var(--font-body);
            font-size: 1rem;
            color: var(--text);
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            outline: none;
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255,90,31,0.15);
        }
        .subscribe-form input[type="email"]::placeholder { color: var(--text-dim); }
        @media (max-width: 640px) {
            .subscribe-form { flex-direction: column; }
            .subscribe-form .btn-solid-primary { width: 100%; justify-content: center; }
        }

        /* ===== RELATED CATEGORIES ===== */
        .related-section { background: var(--bg); }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }
        .related-card {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 16px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: all var(--transition);
        }
        .related-card:hover {
            border-color: rgba(255,90,31,0.3);
            box-shadow: var(--shadow-sm), var(--glow-primary);
            transform: translateY(-1px);
        }
        .related-card .r-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: var(--radius-sm);
            background: rgba(255,90,31,0.08);
            color: var(--primary);
            font-size: 1.3rem;
            flex-shrink: 0;
        }
        .related-card .r-info h3 {
            font-family: var(--font-nav);
            font-size: 1rem;
            font-weight: 700;
            margin: 0 0 4px;
            color: var(--text);
            line-height: 1.3;
        }
        .related-card .r-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.5;
        }
        @media (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 640px) {
            .related-grid { grid-template-columns: 1fr; }
        }

        /* ===== STICKY BOTTOM BAR ===== */
        .sticky-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 95;
            background: rgba(13,15,18,0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border);
            padding: 10px 0;
            transform: translateY(100%);
            transition: transform 0.35s cubic-bezier(0.4,0,0.2,1);
            box-shadow: 0 -4px 24px rgba(0,0,0,0.5);
        }
        .sticky-bottom-bar.is-visible { transform: translateY(0); }
        .sticky-bottom-bar .container-main {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .sticky-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .sticky-info .sticky-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255,90,31,0.12);
            color: var(--primary);
            font-size: 1rem;
            flex-shrink: 0;
        }
        .sticky-info p {
            margin: 0;
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.4;
        }
        .sticky-info p strong {
            color: var(--text);
            font-family: var(--font-nav);
            font-weight: 700;
            display: block;
            font-size: 0.92rem;
        }
        .sticky-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.02em;
            color: #fff;
            background: linear-gradient(135deg, var(--primary) 0%, #FF7A3D 100%);
            border: none;
            border-radius: var(--radius-sm);
            white-space: nowrap;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 2px 12px rgba(255,90,31,0.3);
        }
        .sticky-cta:hover {
            background: linear-gradient(135deg, #FF6B2A 0%, #FF8A4D 100%);
            box-shadow: 0 4px 16px rgba(255,90,31,0.45);
            color: #fff;
            transform: translateY(-1px);
        }
        @media (max-width: 640px) {
            .sticky-bottom-bar .container-main { flex-direction: column; align-items: flex-start; gap: 8px; padding: 8px 16px; }
            .sticky-cta { width: 100%; justify-content: center; }
            .sticky-info p strong { display: inline; }
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
            margin-bottom: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            padding-bottom: 28px;
            border-bottom: 1px solid var(--border);
        }
        .footer-brand h4 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 900;
            margin: 0 0 12px;
            color: var(--text);
            letter-spacing: 0.05em;
        }
        .footer-brand h4 span { color: var(--primary); }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }
        .footer-col h5 {
            font-family: var(--font-nav);
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 14px;
            letter-spacing: 0.03em;
            text-transform: uppercase;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col a {
            font-size: 0.9rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .footer-col a:hover { color: var(--primary); }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 20px;
            font-size: 0.8rem;
            color: var(--text-dim);
        }
        .footer-bottom .fb-links {
            display: flex;
            gap: 16px;
        }
        .footer-bottom .fb-links a {
            color: var(--text-dim);
            transition: color var(--transition);
        }
        .footer-bottom .fb-links a:hover { color: var(--primary); }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
        }
        @media (max-width: 520px) {
            .footer-grid { grid-template-columns: 1fr; gap: 20px; }
            .footer-bottom { flex-direction: column; align-items: flex-start; }
        }

        /* ===== FOCUS ACCESSIBILITY ===== */
        a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        ::selection { background: rgba(255,90,31,0.35); color: #fff; }

/* roulang page: category3 */
:root {
            --primary: #FF5A1F;
            --primary-dark: #E04A15;
            --secondary: #1DB954;
            --accent: #00E5FF;
            --bg: #0D0F12;
            --bg-elevated: #111418;
            --card-bg: #15181D;
            --card-bg-hover: #1A1E24;
            --text: #E8EAED;
            --text-muted: #8A9198;
            --text-dim: #5C6268;
            --border: #2A2E35;
            --border-light: #353A42;
            --radius: 8px;
            --radius-sm: 6px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.45);
            --glow-primary: 0 0 24px rgba(255, 90, 31, 0.18);
            --glow-accent: 0 0 20px rgba(0, 229, 255, 0.12);
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-heading: 'Orbitron', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-nav: 'Rajdhani', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --font-body: 'Roboto Condensed', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            --section-pad: 80px 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            margin: 0;
            padding: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover,
        a:focus {
            color: var(--primary);
            text-decoration: none;
            outline: none;
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        section {
            position: relative;
            padding: var(--section-pad);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
        }

        .section-label::before,
        .section-label::after {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(255, 90, 31, 0.5);
        }

        .section-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 2rem;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            color: var(--text);
            line-height: 1.3;
        }

        .section-title em {
            font-style: normal;
            color: var(--primary);
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 720px;
            margin-bottom: 32px;
            line-height: 1.8;
        }

        /* ===== NAVBAR ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13, 15, 18, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            min-height: 68px;
            gap: 16px;
        }

        .nav-logo {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.7rem;
            color: var(--text);
            letter-spacing: 0.05em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo .logo-mark {
            color: var(--primary);
            font-size: 1.9rem;
            text-shadow: 0 0 16px rgba(255, 90, 31, 0.5);
        }

        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--text);
        }

        .nav-logo span.ng {
            color: var(--primary);
            text-shadow: 0 0 16px rgba(255, 90, 31, 0.5);
        }

        .nav-menu-wrapper {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li {
            position: relative;
        }

        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 12px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.92rem;
            letter-spacing: 0.02em;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .nav-menu a:hover {
            color: var(--text);
            background: rgba(255, 90, 31, 0.08);
        }

        .nav-menu a.active {
            color: var(--primary);
            background: rgba(255, 90, 31, 0.12);
            box-shadow: inset 0 0 0 1px rgba(255, 90, 31, 0.25);
        }

        .nav-menu a i {
            font-size: 0.82rem;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.92rem;
            letter-spacing: 0.02em;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(255, 90, 31, 0.3);
            transition: all var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover,
        .nav-cta:focus {
            color: #fff;
            box-shadow: 0 6px 24px rgba(255, 90, 31, 0.45);
            transform: translateY(-2px);
        }

        .nav-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 1.2rem;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .mobile-nav {
            display: none;
            background: rgba(13, 15, 18, 0.98);
            border-top: 1px solid var(--border);
            padding: 16px 24px;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav.open {
            display: flex;
        }

        .mobile-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 14px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--primary);
            background: rgba(255, 90, 31, 0.1);
        }

        .mobile-nav .nav-cta {
            margin-top: 12px;
            justify-content: center;
            width: 100%;
        }

        /* ===== CATEGORY HERO BANNER ===== */
        .category-hero {
            position: relative;
            padding: 72px 0 56px;
            background-image: linear-gradient(rgba(13, 15, 18, 0.85), rgba(13, 15, 18, 0.92)), url('/assets/images/bc4d31b1cc815cfe.webp');
            background-size: cover;
            background-position: center;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255, 90, 31, 0.03) 2px, rgba(255, 90, 31, 0.03) 4px);
            pointer-events: none;
        }

        .category-hero-inner {
            position: relative;
            z-index: 1;
        }

        .category-hero .section-label {
            margin-bottom: 16px;
        }

        .category-hero h1 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 2.8rem;
            letter-spacing: -0.01em;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.2;
        }

        .category-hero h1 em {
            font-style: normal;
            color: var(--primary);
            text-shadow: 0 0 24px rgba(255, 90, 31, 0.4);
        }

        .category-hero-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 720px;
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ===== FILTER TOOLBAR ===== */
        .filter-toolbar {
            background: var(--bg-elevated);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: -28px;
            position: relative;
            z-index: 2;
            box-shadow: var(--shadow-md);
        }

        .filter-group {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .filter-label {
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-right: 4px;
        }

        .filter-btn {
            padding: 8px 16px;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-muted);
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 90, 31, 0.06);
        }

        .filter-btn.active {
            background: rgba(255, 90, 31, 0.14);
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 12px rgba(255, 90, 31, 0.2);
        }

        .filter-sort {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }

        .sort-select {
            background: var(--card-bg);
            border: 1px solid var(--border);
            color: var(--text);
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: border-color var(--transition);
            min-width: 140px;
        }

        .sort-select:focus {
            outline: none;
            border-color: var(--primary);
        }

        /* ===== CARD LIST ===== */
        .rank-list-section {
            background: var(--bg);
        }

        .rank-card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
            margin-bottom: 32px;
        }

        .rank-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }

        .rank-card:hover {
            background: var(--card-bg-hover);
            border-color: var(--primary);
            box-shadow: var(--shadow-md), var(--glow-primary);
            transform: translateY(-3px);
        }

        .rank-card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
            background: var(--bg-elevated);
        }

        .rank-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .rank-card:hover .rank-card-img img {
            transform: scale(1.05);
        }

        .rank-card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            background: rgba(13, 15, 18, 0.85);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 90, 31, 0.4);
            color: var(--primary);
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.75rem;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            border-radius: 999px;
        }

        .rank-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .rank-card-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text);
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .rank-card-summary {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .rank-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }

        .rank-card-tag {
            padding: 3px 10px;
            background: rgba(0, 229, 255, 0.08);
            border: 1px solid rgba(0, 229, 255, 0.25);
            color: var(--accent);
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.75rem;
            border-radius: 999px;
            letter-spacing: 0.03em;
        }

        .rank-card-date {
            font-size: 0.8rem;
            color: var(--text-dim);
            margin-left: auto;
        }

        .view-more-wrap {
            text-align: center;
        }

        .view-more-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text);
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .view-more-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 90, 31, 0.06);
            box-shadow: 0 0 16px rgba(255, 90, 31, 0.15);
        }

        /* ===== STATS OVERVIEW ===== */
        .stats-overview {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .stat-block {
            text-align: center;
            padding: 28px 16px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            transition: all var(--transition);
        }

        .stat-block:hover {
            border-color: var(--primary);
            box-shadow: var(--glow-primary);
        }

        .stat-number {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 2.2rem;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 8px;
            text-shadow: 0 0 20px rgba(255, 90, 31, 0.3);
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ===== FEATURED ===== */
        .featured-section {
            background: var(--bg);
        }

        .featured-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .featured-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }

        .featured-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md), var(--glow-accent);
            transform: translateY(-3px);
        }

        .featured-img {
            height: 160px;
            overflow: hidden;
            background: var(--bg-elevated);
        }

        .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }

        .featured-card:hover .featured-img img {
            transform: scale(1.06);
        }

        .featured-body {
            padding: 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .featured-title {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .featured-desc {
            font-size: 0.88rem;
            color: var(--text-muted);
            line-height: 1.6;
            flex: 1;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .accordion {
            background: transparent;
            border: none;
            margin: 0;
            list-style: none;
            padding: 0;
        }

        .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition);
        }

        .accordion-item:hover {
            border-color: var(--border-light);
        }

        .accordion-title {
            background: transparent;
            border: none;
            padding: 18px 22px;
            color: var(--text);
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            width: 100%;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition);
        }

        .accordion-title:hover {
            color: var(--primary);
        }

        .accordion-title::after {
            content: '\2b';
            font-size: 1.1rem;
            color: var(--primary);
            transition: transform var(--transition);
        }

        .accordion-item.is-active .accordion-title::after {
            content: '\2212';
        }

        .accordion-content {
            padding: 0 22px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
            display: none;
        }

        .accordion-item.is-active .accordion-content {
            display: block;
        }

        /* ===== SUBSCRIBE CTA ===== */
        .subscribe-section {
            background: var(--bg);
        }

        .subscribe-box {
            background: linear-gradient(135deg, rgba(255, 90, 31, 0.08), rgba(0, 229, 255, 0.05));
            border: 1px solid rgba(255, 90, 31, 0.3);
            border-radius: var(--radius-lg);
            padding: 40px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }

        .subscribe-info {
            flex: 1;
            min-width: 260px;
        }

        .subscribe-info h3 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.5rem;
            color: var(--text);
            margin-bottom: 8px;
        }

        .subscribe-info p {
            color: var(--text-muted);
            margin-bottom: 0;
            font-size: 0.95rem;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .subscribe-form input[type="email"] {
            background: rgba(13, 15, 18, 0.8);
            border: 1px solid var(--border);
            color: var(--text);
            font-family: var(--font-body);
            font-size: 1rem;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            min-width: 240px;
            transition: border-color var(--transition);
        }

        .subscribe-form input[type="email"]:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(255, 90, 31, 0.15);
        }

        .subscribe-form button {
            padding: 12px 28px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(255, 90, 31, 0.3);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .subscribe-form button:hover {
            box-shadow: 0 6px 24px rgba(255, 90, 31, 0.45);
            transform: translateY(-2px);
        }

        /* ===== RELATED CATEGORIES ===== */
        .related-cats-section {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
        }

        .related-cat-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 16px;
        }

        .related-cat-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            color: var(--text);
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
        }

        .related-cat-item:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(255, 90, 31, 0.06);
            box-shadow: var(--glow-primary);
        }

        .related-cat-item i {
            font-size: 1.1rem;
            color: var(--primary);
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #0A0C0E;
            border-top: 1px solid var(--border);
            padding: 56px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.6rem;
            color: var(--text);
            margin-bottom: 12px;
        }

        .footer-brand h4 span {
            color: var(--primary);
            text-shadow: 0 0 12px rgba(255, 90, 31, 0.4);
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h5 {
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color var(--transition);
        }

        .footer-col a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-dim);
        }

        .footer-bottom span {
            white-space: nowrap;
        }

        .fb-links {
            display: flex;
            gap: 16px;
        }

        .fb-links a {
            color: var(--text-muted);
            font-size: 0.8rem;
        }

        .fb-links a:hover {
            color: var(--primary);
        }

        /* ===== STICKY BOTTOM BAR ===== */
        .sticky-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            background: rgba(13, 15, 18, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border);
            padding: 12px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transform: translateY(100%);
            transition: transform 0.35s ease;
            box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.5);
        }

        .sticky-bottom-bar.visible {
            transform: translateY(0);
        }

        .sticky-bar-text {
            color: var(--text);
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sticky-bar-text i {
            color: var(--primary);
        }

        .sticky-bar-cta {
            padding: 8px 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.88rem;
            border-radius: var(--radius-sm);
            box-shadow: 0 4px 16px rgba(255, 90, 31, 0.3);
            transition: all var(--transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .sticky-bar-cta:hover {
            color: #fff;
            box-shadow: 0 6px 24px rgba(255, 90, 31, 0.45);
            transform: translateY(-2px);
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .nav-menu a {
                padding: 10px 10px;
                font-size: 0.85rem;
            }

            .nav-cta-desktop {
                padding: 10px 14px;
                font-size: 0.85rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .related-cat-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-pad: 56px 0;
            }

            .header-inner {
                min-height: 60px;
            }

            .nav-menu-wrapper {
                display: none;
            }

            .nav-cta-desktop {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .category-hero {
                padding: 48px 0 48px;
            }

            .category-hero h1 {
                font-size: 2rem;
            }

            .category-hero-desc {
                font-size: 1rem;
            }

            .filter-toolbar {
                flex-direction: column;
                align-items: stretch;
                margin-top: -20px;
                padding: 16px 18px;
            }

            .filter-sort {
                margin-left: 0;
            }

            .rank-card-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .featured-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .related-cat-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-number {
                font-size: 1.7rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .subscribe-box {
                flex-direction: column;
                align-items: stretch;
                padding: 28px 22px;
            }

            .subscribe-form input[type="email"] {
                min-width: 100%;
                width: 100%;
            }

            .subscribe-form button {
                width: 100%;
                justify-content: center;
            }

            .sticky-bottom-bar {
                padding: 10px 16px;
                flex-direction: column;
                gap: 8px;
            }

            .sticky-bar-text {
                font-size: 0.82rem;
            }

            .sticky-bar-cta {
                width: 100%;
                justify-content: center;
                padding: 10px 16px;
            }
        }

        @media (max-width: 520px) {
            .container-main {
                padding: 0 16px;
            }

            .category-hero h1 {
                font-size: 1.6rem;
            }

            .section-title {
                font-size: 1.5rem;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .stat-block {
                padding: 20px 12px;
            }

            .filter-group {
                flex-direction: column;
                align-items: stretch;
            }

            .filter-btn {
                text-align: center;
            }

            .rank-card-img {
                height: 150px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #FF5A1F;
            --primary-dark: #E04A15;
            --secondary: #1DB954;
            --accent: #00E5FF;
            --bg: #0D0F12;
            --bg-elevated: #111418;
            --card-bg: #15181D;
            --card-bg-hover: #1A1E24;
            --text: #E8EAED;
            --text-muted: #8A9198;
            --text-dim: #5C6268;
            --border: #2A2E35;
            --border-light: #353A42;
            --radius: 8px;
            --radius-sm: 6px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
            --shadow-md: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.45);
            --glow-primary: 0 0 24px rgba(255,90,31,0.18);
            --glow-accent: 0 0 20px rgba(0,229,255,0.12);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font-heading: 'Orbitron','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-nav: 'Rajdhani','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-body: 'Roboto Condensed','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --section-pad: 80px 0;
        }
        * { box-sizing: border-box; }
        html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
        body {
            margin: 0;
            padding: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
        a:hover, a:focus { color: var(--primary); text-decoration: none; outline: none; }
        button { font-family: inherit; cursor: pointer; }
        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section { position: relative; padding: var(--section-pad); }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-label::before,
        .section-label::after {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(255,90,31,0.5);
        }
        .section-title {
            font-size: 2rem;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            color: var(--text);
            font-weight: 700;
        }
        .section-title em { font-style: normal; color: var(--primary); }
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 720px;
            margin-bottom: 32px;
        }
        /* ===== NAVBAR ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13,15,18,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.5); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            min-height: 68px;
            gap: 16px;
        }
        .nav-logo {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.7rem;
            color: var(--text);
            letter-spacing: 0.05em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-logo .logo-mark { color: var(--primary); font-size: 1.9rem; }
        .nav-logo:hover, .nav-logo:focus { color: var(--text); }
        .nav-logo span.ng { color: var(--primary); text-shadow: 0 0 16px rgba(255,90,31,0.5); }
        .nav-menu-wrapper {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li { position: relative; }
        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-menu a:hover { color: var(--text); background: rgba(255,90,31,0.08); }
        .nav-menu a.active {
            color: var(--primary);
            background: rgba(255,90,31,0.12);
            box-shadow: inset 0 0 0 1px rgba(255,90,31,0.2);
        }
        .nav-menu a i { font-size: 0.85rem; }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: linear-gradient(135deg, var(--primary), #FF8A2A);
            color: #fff;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.95rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: 0 4px 16px rgba(255,90,31,0.25);
        }
        .nav-cta:hover { background: linear-gradient(135deg, #FF7A3A, var(--primary)); color: #fff; transform: translateY(-1px); box-shadow: 0 8px 24px rgba(255,90,31,0.35); }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: color var(--transition);
        }
        .nav-toggle:hover { color: var(--primary); }
        .mobile-nav {
            display: none;
            background: rgba(13,15,18,0.98);
            border-top: 1px solid var(--border);
            padding: 12px 0;
        }
        .mobile-nav ul { list-style: none; margin: 0; padding: 0; }
        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 24px;
            color: var(--text-muted);
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
        }
        .mobile-nav a:hover { color: var(--text); background: rgba(255,90,31,0.08); }
        .mobile-nav a.active { color: var(--primary); background: rgba(255,90,31,0.12); }
        .mobile-nav .nav-cta { margin: 8px 24px; display: flex; justify-content: center; }
        /* ===== PAGE BANNER ===== */
        .page-banner {
            position: relative;
            padding: 100px 0 70px;
            background: url('/assets/images/bc4d31b1cc815cfe.webp') center/cover no-repeat;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: linear-gradient(135deg, rgba(13,15,18,0.93) 0%, rgba(13,15,18,0.65) 60%, rgba(255,90,31,0.15) 100%);
            z-index: 1;
        }
        .page-banner .container-main { position: relative; z-index: 2; }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 900;
            letter-spacing: -0.01em;
            color: var(--text);
            margin-bottom: 16px;
        }
        .page-banner .banner-desc {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
        }
        .page-banner .banner-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 24px;
        }
        .page-banner .banner-tags span {
            padding: 6px 16px;
            background: rgba(255,90,31,0.12);
            border: 1px solid rgba(255,90,31,0.25);
            border-radius: 20px;
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 500;
        }
        /* ===== FILTER TOOLBAR ===== */
        .filter-toolbar {
            background: var(--bg-elevated);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px 20px;
            margin-bottom: 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .filter-group {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .filter-btn {
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-muted);
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            transition: all var(--transition);
        }
        .filter-btn:hover, .filter-btn.active {
            background: rgba(255,90,31,0.12);
            border-color: rgba(255,90,31,0.4);
            color: var(--primary);
        }
        .sort-group {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sort-group label {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
        }
        .sort-btn {
            background: transparent;
            border: 1px solid var(--border-light);
            color: var(--text-muted);
            padding: 6px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            transition: all var(--transition);
        }
        .sort-btn:hover, .sort-btn.active {
            color: var(--primary);
            border-color: rgba(255,90,31,0.4);
            background: rgba(255,90,31,0.08);
        }
        /* ===== REVIEW CARDS ===== */
        .review-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .review-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }
        .review-card:hover {
            transform: translateY(-2px);
            background: var(--card-bg-hover);
            border-color: rgba(255,90,31,0.3);
            box-shadow: var(--shadow-md), var(--glow-primary);
        }
        .review-card .card-img {
            position: relative;
            height: 180px;
            overflow: hidden;
        }
        .review-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .review-card:hover .card-img img { transform: scale(1.05); }
        .review-card .card-img .img-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(13,15,18,0.8);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.03em;
        }
        .review-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .review-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 10px;
        }
        .review-card .card-title a {
            color: var(--text);
            transition: color var(--transition);
        }
        .review-card .card-title a:hover { color: var(--primary); }
        .review-card .card-summary {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 16px;
            flex: 1;
        }
        .review-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            color: var(--text-dim);
            font-size: 0.8rem;
            border-top: 1px solid var(--border);
            padding-top: 14px;
        }
        .review-card .card-meta span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(0,229,255,0.1);
            color: var(--accent);
            border: 1px solid rgba(0,229,255,0.25);
        }
        .badge.orange { background: rgba(255,90,31,0.1); color: var(--primary); border-color: rgba(255,90,31,0.25); }
        .badge.green { background: rgba(29,185,84,0.1); color: var(--secondary); border-color: rgba(29,185,84,0.25); }
        /* ===== FEATURE PANELS ===== */
        .feature-panels {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .feature-panel {
            display: flex;
            gap: 20px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }
        .feature-panel:hover {
            border-color: rgba(255,90,31,0.3);
            background: var(--card-bg-hover);
            box-shadow: var(--shadow-md);
        }
        .feature-panel .fp-img {
            width: 120px;
            height: 120px;
            flex-shrink: 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .feature-panel .fp-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .feature-panel .fp-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .feature-panel .fp-content p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 0 0 12px;
        }
        .feature-panel .fp-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
        }
        /* ===== METHOD ITEMS ===== */
        .method-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .method-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            transition: all var(--transition);
        }
        .method-item:hover {
            border-color: rgba(255,90,31,0.3);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .method-item i {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 14px;
        }
        .method-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .method-item p {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin: 0;
            line-height: 1.6;
        }
        /* ===== STATS ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            text-align: center;
            transition: all var(--transition);
        }
        .stat-card:hover { border-color: rgba(255,90,31,0.3); box-shadow: var(--shadow-md); }
        .stat-card .stat-num {
            font-size: 2.5rem;
            font-weight: 900;
            font-family: var(--font-heading);
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            color: var(--text-muted);
            font-size: 0.9rem;
        }
        /* ===== FAQ ===== */
        .accordion {
            border: none;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .accordion-item {
            margin-bottom: 12px;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: var(--card-bg);
            overflow: hidden;
        }
        .accordion-title {
            display: block;
            padding: 16px 20px;
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            position: relative;
            transition: background var(--transition);
            border: none;
            background: transparent;
            text-align: left;
            width: 100%;
        }
        .accordion-title:hover { background: rgba(255,90,31,0.06); color: var(--primary); }
        .accordion-title::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .accordion-item.is-active .accordion-title::after { transform: translateY(-50%) rotate(180deg); }
        .accordion-content {
            padding: 0 20px 16px;
            color: var(--text-muted);
            line-height: 1.7;
            font-size: 0.95rem;
            display: none;
        }
        .accordion-item.is-active .accordion-content { display: block; }
        /* ===== SUBSCRIBE ===== */
        .subscribe-box {
            background: var(--bg-elevated);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .subscribe-text h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .subscribe-text p {
            color: var(--text-muted);
            margin: 0;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            flex: 1;
            min-width: 280px;
            max-width: 460px;
        }
        .subscribe-form input {
            flex: 1;
            padding: 12px 16px;
            background: #0D0F12;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text);
            font-family: var(--font-body);
            font-size: 0.95rem;
            transition: border-color var(--transition);
        }
        .subscribe-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 2px rgba(255,90,31,0.2);
        }
        .subscribe-form .btn-primary {
            padding: 12px 24px;
            background: linear-gradient(135deg, var(--primary), #FF8A2A);
            border: none;
            border-radius: var(--radius-sm);
            color: #fff;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.95rem;
            white-space: nowrap;
            transition: all var(--transition);
        }
        .subscribe-form .btn-primary:hover {
            background: linear-gradient(135deg, #FF7A3A, var(--primary));
            transform: translateY(-1px);
            box-shadow: 0 8px 24px rgba(255,90,31,0.35);
        }
        /* ===== RELATED LINKS ===== */
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            display: block;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
        }
        .related-card:hover {
            border-color: rgba(255,90,31,0.3);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .related-card .rc-img {
            height: 140px;
            overflow: hidden;
        }
        .related-card .rc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        .related-card:hover .rc-img img { transform: scale(1.05); }
        .related-card .rc-body {
            padding: 18px;
        }
        .related-card .rc-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }
        .related-card .rc-body p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
        }
        /* ===== FOOTER ===== */
        .site-footer {
            background: #0A0C0F;
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h4 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.8rem;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: 0.05em;
        }
        .footer-brand h4 span { color: var(--primary); }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin: 0;
        }
        .footer-col h5 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col li { margin-bottom: 10px; }
        .footer-col a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color var(--transition);
        }
        .footer-col a:hover { color: var(--primary); }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            border-top: 1px solid var(--border);
            padding-top: 24px;
            color: var(--text-dim);
            font-size: 0.8rem;
        }
        .footer-bottom span { display: inline-flex; align-items: center; gap: 8px; }
        .fb-links { display: flex; gap: 16px; margin-left: auto; }
        .fb-links a {
            color: var(--text-dim);
            transition: color var(--transition);
        }
        .fb-links a:hover { color: var(--primary); }
        /* ===== RESPONSIVE ===== */
        @media screen and (max-width: 1024px) {
            .review-grid { grid-template-columns: repeat(2, 1fr); }
            .method-grid, .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .feature-panels { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .nav-menu-wrapper { display: none; }
            .nav-cta-desktop { display: none; }
            .nav-toggle { display: block; }
        }
        @media screen and (max-width: 640px) {
            section { padding: 56px 0; }
            .page-banner { padding: 70px 0 50px; }
            .page-banner h1 { font-size: 2rem; }
            .review-grid { grid-template-columns: 1fr; }
            .method-grid, .stats-grid { grid-template-columns: 1fr; }
            .related-grid { grid-template-columns: 1fr; }
            .feature-panel { flex-direction: column; gap: 16px; }
            .feature-panel .fp-img { width: 100%; height: 160px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-bottom { flex-direction: column; align-items: flex-start; }
            .fb-links { margin-left: 0; }
            .subscribe-form { flex-direction: column; }
            .subscribe-form .btn-primary { width: 100%; }
            .filter-toolbar { flex-direction: column; align-items: flex-start; }
        }

/* roulang page: category5 */
:root {
            --primary: #FF5A1F;
            --primary-dark: #E04A15;
            --secondary: #1DB954;
            --accent: #00E5FF;
            --bg: #0D0F12;
            --bg-elevated: #111418;
            --card-bg: #15181D;
            --card-bg-hover: #1A1E24;
            --text: #E8EAED;
            --text-muted: #8A9198;
            --text-dim: #5C6268;
            --border: #2A2E35;
            --border-light: #353A42;
            --radius: 8px;
            --radius-sm: 6px;
            --radius-lg: 16px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
            --shadow-md: 0 8px 32px rgba(0,0,0,0.35);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.45);
            --glow-primary: 0 0 24px rgba(255,90,31,0.18);
            --glow-accent: 0 0 20px rgba(0,229,255,0.12);
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
            --font-heading: 'Orbitron','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-nav: 'Rajdhani','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --font-body: 'Roboto Condensed','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
            --section-pad: 80px 0;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            padding: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-body);
            font-size: 16px;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover,
        a:focus {
            color: var(--primary);
            text-decoration: none;
            outline: none;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            line-height: 1.25;
            margin-top: 0;
            color: var(--text);
        }
        p {
            margin: 0 0 16px;
        }
        ul, ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        input, select, textarea {
            font-family: inherit;
        }
        .container-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            position: relative;
            padding: var(--section-pad);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.85rem;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .section-label::before,
        .section-label::after {
            content: '';
            display: inline-block;
            width: 24px;
            height: 2px;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(255,90,31,0.5);
        }
        .section-title {
            font-size: 2rem;
            letter-spacing: -0.01em;
            margin-bottom: 16px;
            color: var(--text);
        }
        .section-title em {
            font-style: normal;
            color: var(--primary);
        }
        .section-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 720px;
            margin-bottom: 32px;
        }

        /* ===== NAVBAR ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(13,15,18,0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0,0,0,0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: nowrap;
            min-height: 68px;
            gap: 16px;
        }
        .nav-logo {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.7rem;
            color: var(--text);
            letter-spacing: 0.05em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-logo .logo-mark {
            color: var(--primary);
            font-size: 1.9rem;
        }
        .nav-logo:hover,
        .nav-logo:focus {
            color: var(--text);
        }
        .nav-logo span.ng {
            color: var(--primary);
            text-shadow: 0 0 16px rgba(255,90,31,0.5);
        }
        .nav-menu-wrapper {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li {
            position: relative;
        }
        .nav-menu a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 10px 14px;
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.02em;
            color: var(--text-muted);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .nav-menu a:hover {
            color: var(--text);
            background: rgba(255,90,31,0.08);
        }
        .nav-menu a.active {
            color: var(--primary);
            background: rgba(255,90,31,0.12);
            box-shadow: inset 0 0 0 1px rgba(255,90,31,0.2);
        }
        .nav-menu a i {
            font-size: 0.85rem;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.04em;
            border-radius: var(--radius-sm);
            border: none;
            transition: all var(--transition);
            white-space: nowrap;
            box-shadow: var(--glow-primary);
        }
        .nav-cta:hover {
            background: linear-gradient(135deg, #FF6B35, #F0521A);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 0 32px rgba(255,90,31,0.3);
        }
        .nav-cta-desktop {
            display: inline-flex;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid var(--border);
            color: var(--text);
            font-size: 1.3rem;
            width: 44px;
            height: 44px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            transition: all var(--transition);
        }
        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .mobile-nav {
            display: none;
            background: var(--bg-elevated);
            border-bottom: 1px solid var(--border);
            padding: 12px 24px 20px;
        }
        .mobile-nav ul {
            display: flex;
            flex-direction: column;
            gap: 4px;
            margin-bottom: 12px;
        }
        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 12px 14px;
            color: var(--text-muted);
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--primary);
            background: rgba(255,90,31,0.08);
        }
        .mobile-nav .nav-cta {
            width: 100%;
            justify-content: center;
        }

        /* ===== CATEGORY BANNER ===== */
        .cat-banner {
            position: relative;
            padding: 64px 0 48px;
            background: var(--bg-elevated);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }
        .cat-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(255,90,31,0.12) 0%, transparent 50%), radial-gradient(ellipse at 80% 40%, rgba(0,229,255,0.06) 0%, transparent 40%);
            pointer-events: none;
        }
        .cat-banner .container-main {
            position: relative;
            z-index: 1;
        }
        .cat-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            font-family: var(--font-nav);
        }
        .cat-breadcrumb a {
            color: var(--text-muted);
        }
        .cat-breadcrumb a:hover {
            color: var(--primary);
        }
        .cat-breadcrumb i {
            font-size: 0.7rem;
            color: var(--text-dim);
        }
        .cat-breadcrumb span {
            color: var(--primary);
            font-weight: 600;
        }
        .cat-banner h1 {
            font-size: 2.6rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            margin-bottom: 12px;
            color: var(--text);
        }
        .cat-banner h1 em {
            font-style: normal;
            color: var(--primary);
        }
        .cat-banner .cat-desc {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 0;
        }
        .cat-banner .cat-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            background: rgba(255,90,31,0.12);
            border: 1px solid rgba(255,90,31,0.2);
            border-radius: 30px;
            font-size: 0.8rem;
            color: var(--primary);
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }

        /* ===== FILTER TOOLBAR ===== */
        .filter-toolbar {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px 20px;
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }
        .filter-group {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .filter-group label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
            white-space: nowrap;
        }
        .filter-btn {
            padding: 6px 16px;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-muted);
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
            font-family: var(--font-nav);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .filter-btn.active {
            background: rgba(255,90,31,0.12);
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 12px rgba(255,90,31,0.15);
        }
        .sort-select {
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text);
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.85rem;
            font-family: var(--font-nav);
            cursor: pointer;
            transition: all var(--transition);
            min-width: 140px;
        }
        .sort-select:hover,
        .sort-select:focus {
            border-color: var(--primary);
            outline: none;
        }

        /* ===== ACTIVITY CARDS GRID ===== */
        .activity-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .activity-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            position: relative;
        }
        .activity-card:hover {
            background: var(--card-bg-hover);
            border-color: var(--primary);
            box-shadow: var(--shadow-md), var(--glow-primary);
            transform: translateY(-2px);
        }
        .activity-card .card-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
            background: var(--bg-elevated);
            flex-shrink: 0;
        }
        .activity-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .activity-card:hover .card-img img {
            transform: scale(1.05);
        }
        .activity-card .card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(13,15,18,0.7) 100%);
            pointer-events: none;
        }
        .activity-card .status-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            font-family: var(--font-nav);
            text-transform: uppercase;
        }
        .status-badge.live {
            background: rgba(29,185,84,0.2);
            color: var(--secondary);
            border: 1px solid rgba(29,185,84,0.3);
        }
        .status-badge.upcoming {
            background: rgba(0,229,255,0.15);
            color: var(--accent);
            border: 1px solid rgba(0,229,255,0.25);
        }
        .status-badge.ended {
            background: rgba(138,145,152,0.15);
            color: var(--text-muted);
            border: 1px solid rgba(138,145,152,0.2);
        }
        .activity-card .card-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .activity-card .card-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .activity-card .tag-chip {
            padding: 3px 10px;
            background: rgba(255,90,31,0.08);
            border: 1px solid rgba(255,90,31,0.15);
            color: var(--primary);
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 500;
            font-family: var(--font-nav);
        }
        .activity-card .tag-chip.alt {
            background: rgba(0,229,255,0.08);
            border-color: rgba(0,229,255,0.15);
            color: var(--accent);
        }
        .activity-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0;
            letter-spacing: -0.01em;
            line-height: 1.35;
        }
        .activity-card h3 a {
            color: var(--text);
            transition: color var(--transition);
        }
        .activity-card h3 a:hover {
            color: var(--primary);
        }
        .activity-card .card-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.65;
            margin: 0;
            flex: 1;
        }
        .activity-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-dim);
            border-top: 1px solid var(--border);
            padding-top: 12px;
            margin-top: auto;
        }
        .activity-card .card-meta i {
            margin-right: 4px;
            color: var(--text-muted);
        }
        .activity-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--primary);
            font-family: var(--font-nav);
            transition: gap var(--transition);
        }
        .activity-card .card-link i {
            font-size: 0.7rem;
        }
        .activity-card .card-link:hover {
            color: var(--primary-dark);
            gap: 8px;
        }

        /* ===== FEATURED SPECIAL ===== */
        .featured-special {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .featured-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-md), var(--glow-accent);
            transform: translateY(-2px);
            background: var(--card-bg-hover);
        }
        .featured-card .featured-img {
            aspect-ratio: 21/9;
            overflow: hidden;
            position: relative;
        }
        .featured-card .featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .featured-card:hover .featured-img img {
            transform: scale(1.04);
        }
        .featured-card .featured-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(13,15,18,0.75) 100%);
        }
        .featured-card .featured-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .featured-card .featured-badge {
            align-self: flex-start;
            padding: 4px 14px;
            background: rgba(255,90,31,0.2);
            color: var(--primary);
            border: 1px solid rgba(255,90,31,0.3);
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.04em;
            font-family: var(--font-nav);
        }
        .featured-card h3 {
            font-size: 1.2rem;
            margin: 0;
        }
        .featured-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
            flex: 1;
        }
        .featured-card .featured-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.85rem;
            color: var(--accent);
            font-family: var(--font-nav);
            transition: color var(--transition);
        }
        .featured-card .featured-link:hover {
            color: var(--primary);
        }

        /* ===== DATA OVERVIEW ===== */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
        }
        .data-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition);
        }
        .data-card:hover {
            border-color: var(--primary);
            box-shadow: var(--glow-primary);
            transform: translateY(-2px);
        }
        .data-card .data-num {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 6px;
            letter-spacing: -0.02em;
        }
        .data-card .data-num.accent-cyan {
            color: var(--accent);
        }
        .data-card .data-num.accent-green {
            color: var(--secondary);
        }
        .data-card .data-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
            letter-spacing: 0.03em;
        }
        .data-card .data-sub {
            font-size: 0.8rem;
            color: var(--text-dim);
            margin-top: 4px;
        }

        /* ===== FAQ SECTION ===== */
        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-accordion .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-accordion .accordion-item:hover {
            border-color: var(--border-light);
        }
        .faq-accordion .accordion-item.active {
            border-color: var(--primary);
            box-shadow: var(--glow-primary);
        }
        .faq-accordion .accordion-header {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 18px 20px;
            background: transparent;
            border: none;
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            font-family: var(--font-body);
            text-align: left;
            transition: color var(--transition);
        }
        .faq-accordion .accordion-header:hover {
            color: var(--primary);
        }
        .faq-accordion .accordion-header .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid var(--border);
            font-size: 0.7rem;
            transition: all var(--transition);
            color: var(--text-muted);
        }
        .faq-accordion .accordion-item.active .faq-icon {
            border-color: var(--primary);
            color: var(--primary);
            transform: rotate(45deg);
        }
        .faq-accordion .accordion-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-accordion .accordion-body-inner {
            padding: 0 20px 20px;
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.75;
        }

        /* ===== SUBSCRIBE CTA ===== */
        .subscribe-panel {
            background: var(--bg-elevated);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .subscribe-panel::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 0%, rgba(255,90,31,0.1) 0%, transparent 50%);
            pointer-events: none;
        }
        .subscribe-panel h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .subscribe-panel p {
            color: var(--text-muted);
            max-width: 520px;
            margin: 0 auto 24px;
            position: relative;
            z-index: 1;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 420px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }
        .subscribe-form input {
            flex: 1;
            padding: 12px 16px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            color: var(--text);
            font-size: 0.95rem;
            transition: all var(--transition);
        }
        .subscribe-form input:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 16px rgba(255,90,31,0.15);
        }
        .subscribe-form input::placeholder {
            color: var(--text-dim);
        }
        .subscribe-form button {
            padding: 12px 24px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-family: var(--font-nav);
            font-weight: 700;
            font-size: 0.9rem;
            letter-spacing: 0.04em;
            white-space: nowrap;
            transition: all var(--transition);
            box-shadow: var(--glow-primary);
        }
        .subscribe-form button:hover {
            background: linear-gradient(135deg, #FF6B35, #F0521A);
            transform: translateY(-1px);
            box-shadow: 0 0 28px rgba(255,90,31,0.3);
        }
        .form-msg {
            font-size: 0.8rem;
            color: var(--secondary);
            margin-top: 12px;
            position: relative;
            z-index: 1;
            display: none;
        }
        .form-msg.show {
            display: block;
        }

        /* ===== RELATED CATEGORIES ===== */
        .related-cats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 16px;
        }
        .related-cat-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 16px 18px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            color: var(--text-muted);
            font-family: var(--font-nav);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .related-cat-link i {
            font-size: 1rem;
            color: var(--primary);
        }
        .related-cat-link:hover {
            border-color: var(--primary);
            color: var(--text);
            background: var(--card-bg-hover);
            box-shadow: var(--glow-primary);
            transform: translateY(-2px);
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: var(--bg-elevated);
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand h4 {
            font-family: var(--font-heading);
            font-weight: 900;
            font-size: 1.5rem;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }
        .footer-brand h4 span {
            color: var(--primary);
        }
        .footer-brand p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text);
        }
        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .footer-col a {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--text-dim);
        }
        .footer-bottom span {
            white-space: nowrap;
        }
        .fb-links {
            display: flex;
            gap: 16px;
        }
        .fb-links a {
            color: var(--text-dim);
            font-size: 0.8rem;
            transition: color var(--transition);
        }
        .fb-links a:hover {
            color: var(--primary);
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .nav-menu-wrapper {
                display: none;
            }
            .nav-cta-desktop {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .mobile-nav.show {
                display: block;
            }
            .cat-banner h1 {
                font-size: 2rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .activity-grid {
                grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            }
        }
        @media (max-width: 768px) {
            :root {
                --section-pad: 56px 0;
            }
            .container-main {
                padding: 0 16px;
            }
            .cat-banner {
                padding: 48px 0 36px;
            }
            .cat-banner h1 {
                font-size: 1.6rem;
            }
            .cat-banner .cat-desc {
                font-size: 0.95rem;
            }
            .filter-toolbar {
                flex-direction: column;
                align-items: stretch;
            }
            .filter-group {
                justify-content: flex-start;
                overflow-x: auto;
                flex-wrap: nowrap;
                padding-bottom: 4px;
                -webkit-overflow-scrolling: touch;
            }
            .sort-select {
                width: 100%;
            }
            .activity-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .data-card .data-num {
                font-size: 1.6rem;
            }
            .subscribe-panel {
                padding: 24px 16px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form button {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }
        @media (max-width: 520px) {
            .header-inner {
                min-height: 60px;
                gap: 10px;
            }
            .nav-logo {
                font-size: 1.3rem;
            }
            .nav-logo .logo-mark {
                font-size: 1.5rem;
            }
            .cat-banner h1 {
                font-size: 1.35rem;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .data-strip {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .related-cats {
                grid-template-columns: 1fr 1fr;
            }
        }

/* roulang page: category6 */
:root {
        --primary: #FF5A1F;
        --primary-dark: #E04A15;
        --secondary: #1DB954;
        --accent: #00E5FF;
        --bg: #0D0F12;
        --bg-elevated: #111418;
        --card-bg: #15181D;
        --card-bg-hover: #1A1E24;
        --text: #E8EAED;
        --text-muted: #8A9198;
        --text-dim: #5C6268;
        --border: #2A2E35;
        --border-light: #353A42;
        --radius: 8px;
        --radius-sm: 6px;
        --radius-lg: 16px;
        --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
        --shadow-md: 0 8px 32px rgba(0,0,0,0.35);
        --shadow-lg: 0 16px 48px rgba(0,0,0,0.45);
        --glow-primary: 0 0 24px rgba(255,90,31,0.18);
        --glow-accent: 0 0 20px rgba(0,229,255,0.12);
        --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
        --font-heading: 'Orbitron','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
        --font-nav: 'Rajdhani','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
        --font-body: 'Roboto Condensed','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
        --section-pad: 80px 0;
    }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; box-sizing: border-box; }
    *, *::before, *::after { box-sizing: inherit; }
    body {
        margin: 0;
        padding: 0;
        background-color: var(--bg);
        color: var(--text);
        font-family: var(--font-body);
        font-size: 16px;
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        overflow-x: hidden;
        min-height: 100vh;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--accent); text-decoration: none; transition: color var(--transition), background var(--transition), box-shadow var(--transition); }
    a:hover, a:focus { color: var(--primary); text-decoration: none; outline: none; }
    button { font-family: inherit; cursor: pointer; }
    h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 700; color: var(--text); line-height: 1.25; margin: 0 0 0.5em; }
    h1 { font-size: 2.2rem; font-weight: 900; letter-spacing: -0.01em; }
    h2 { font-size: 1.8rem; font-weight: 900; letter-spacing: -0.01em; }
    h3 { font-size: 1.25rem; font-weight: 700; }
    h4 { font-size: 1.1rem; }
    h5 { font-size: 0.95rem; letter-spacing: 0.04em; }
    p { margin: 0 0 1em; }
    ul, ol { margin: 0 0 1em; padding-left: 1.2em; }
    .container-main {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }
    section { position: relative; padding: var(--section-pad); }
    .section-label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-family: var(--font-nav);
        font-weight: 600;
        font-size: 0.85rem;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--primary);
        margin-bottom: 12px;
    }
    .section-label::before,
    .section-label::after {
        content: '';
        display: inline-block;
        width: 24px;
        height: 2px;
        background: var(--primary);
        box-shadow: 0 0 8px rgba(255,90,31,0.5);
    }
    .section-title {
        font-size: 2rem;
        letter-spacing: -0.01em;
        margin-bottom: 16px;
        color: var(--text);
    }
    .section-title em {
        font-style: normal;
        color: var(--primary);
    }
    .section-desc {
        font-size: 1rem;
        color: var(--text-muted);
        max-width: 720px;
        margin-bottom: 32px;
    }
    /* ===== NAVBAR ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        background: rgba(13,15,18,0.96);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border);
        transition: box-shadow var(--transition);
    }
    .site-header.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.5); }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: nowrap;
        min-height: 68px;
        gap: 16px;
    }
    .nav-logo {
        font-family: var(--font-heading);
        font-weight: 900;
        font-size: 1.7rem;
        color: var(--text);
        letter-spacing: 0.05em;
        white-space: nowrap;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .nav-logo .logo-mark { color: var(--primary); font-size: 1.9rem; }
    .nav-logo:hover, .nav-logo:focus { color: var(--text); }
    .nav-logo span.ng {
        color: var(--primary);
        text-shadow: 0 0 16px rgba(255,90,31,0.5);
    }
    .nav-menu-wrapper {
        display: flex;
        align-items: center;
        gap: 8px;
        flex: 1;
        justify-content: center;
    }
    .nav-menu {
        display: flex;
        align-items: center;
        gap: 4px;
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .nav-menu li { position: relative; }
    .nav-menu a {
        display: flex;
        align-items: center;
        gap: 6px;
        padding: 10px 14px;
        font-family: var(--font-nav);
        font-weight: 600;
        font-size: 0.95rem;
        letter-spacing: 0.02em;
        color: var(--text-muted);
        border-radius: var(--radius-sm);
        transition: all var(--transition);
        white-space: nowrap;
    }
    .nav-menu a:hover {
        color: var(--text);
        background: rgba(255,90,31,0.08);
    }
    .nav-menu a.active {
        color: var(--primary);
        background: rgba(255,90,31,0.12);
        box-shadow: inset 0 0 0 1px rgba(255,90,31,0.2);
    }
    .nav-menu a i { font-size: 0.85rem; }
    .nav-cta {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 20px;
        background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        color: #fff;
        font-family: var(--font-nav);
        font-weight: 700;
        font-size: 0.9rem;
        letter-spacing: 0.03em;
        border-radius: var(--radius-sm);
        border: none;
        white-space: nowrap;
        box-shadow: 0 4px 16px rgba(255,90,31,0.3);
        transition: all var(--transition);
    }
    .nav-cta:hover, .nav-cta:focus {
        color: #fff;
        background: linear-gradient(135deg, #FF6B3A 0%, #F05520 100%);
        box-shadow: 0 6px 24px rgba(255,90,31,0.45);
        transform: translateY(-1px);
    }
    .nav-cta-desktop { display: inline-flex; }
    .nav-toggle {
        display: none;
        background: transparent;
        border: 1px solid var(--border-light);
        color: var(--text);
        font-size: 1.2rem;
        border-radius: var(--radius-sm);
        padding: 8px 12px;
        align-items: center;
        justify-content: center;
        transition: all var(--transition);
    }
    .nav-toggle:hover { background: rgba(255,90,31,0.1); border-color: var(--primary); }
    .mobile-nav {
        display: none;
        background: var(--bg-elevated);
        border-bottom: 1px solid var(--border);
        padding: 12px 24px 20px;
    }
    .mobile-nav ul { list-style: none; margin: 0; padding: 0; }
    .mobile-nav li { border-bottom: 1px solid var(--border); }
    .mobile-nav li:last-child { border-bottom: none; }
    .mobile-nav a {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 12px 4px;
        font-family: var(--font-nav);
        font-weight: 600;
        color: var(--text-muted);
        font-size: 0.95rem;
        transition: color var(--transition);
    }
    .mobile-nav a:hover { color: var(--text); }
    .mobile-nav a.active { color: var(--primary); }
    .mobile-nav .nav-cta {
        display: flex;
        justify-content: center;
        margin-top: 14px;
        width: 100%;
    }
    /* ===== CATEGORY HERO (分类标题横幅) ===== */
    .category-hero {
        padding: 56px 0 48px;
        background: linear-gradient(180deg, rgba(255,90,31,0.06) 0%, rgba(13,15,18,0) 100%);
        border-bottom: 1px solid var(--border);
        position: relative;
        overflow: hidden;
    }
    .category-hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-image: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,90,31,0.02) 2px, rgba(255,90,31,0.02) 4px);
        pointer-events: none;
        z-index: 1;
    }
    .category-hero .container-main { position: relative; z-index: 2; }
    .category-hero h1 {
        font-size: 2.6rem;
        font-weight: 900;
        color: var(--text);
        margin-bottom: 12px;
        letter-spacing: 0.01em;
    }
    .category-hero h1 .accent { color: var(--primary); }
    .category-hero .category-desc {
        font-size: 1.05rem;
        color: var(--text-muted);
        max-width: 760px;
        line-height: 1.8;
        margin-bottom: 0;
    }
    .category-breadcrumb {
        display: flex;
        align-items: center;
        gap: 8px;
        font-family: var(--font-nav);
        font-size: 0.85rem;
        color: var(--text-dim);
        margin-bottom: 16px;
        letter-spacing: 0.03em;
    }
    .category-breadcrumb a { color: var(--text-muted); }
    .category-breadcrumb a:hover { color: var(--primary); }
    .category-breadcrumb .sep { color: var(--text-dim); }
    .category-breadcrumb .current { color: var(--primary); }
    /* ===== FILTER TOOLBAR ===== */
    .filter-toolbar {
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 16px 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        margin-bottom: 32px;
    }
    .filter-group {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-wrap: wrap;
    }
    .filter-group .filter-label {
        font-family: var(--font-nav);
        font-weight: 600;
        font-size: 0.85rem;
        color: var(--text-muted);
        letter-spacing: 0.04em;
        text-transform: uppercase;
    }
    .filter-chip {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 6px 14px;
        font-family: var(--font-nav);
        font-weight: 600;
        font-size: 0.85rem;
        color: var(--text-muted);
        background: transparent;
        border: 1px solid var(--border-light);
        border-radius: 20px;
        cursor: pointer;
        transition: all var(--transition);
        white-space: nowrap;
    }
    .filter-chip:hover {
        color: var(--text);
        border-color: var(--primary);
        background: rgba(255,90,31,0.06);
    }
    .filter-chip.active {
        color: var(--primary);
        border-color: var(--primary);
        background: rgba(255,90,31,0.1);
        box-shadow: 0 0 12px rgba(255,90,31,0.15);
    }
    .sort-buttons {
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .sort-btn {
        padding: 6px 14px;
        font-family: var(--font-nav);
        font-weight: 600;
        font-size: 0.85rem;
        color: var(--text-muted);
        background: transparent;
        border: none;
        border-radius: var(--radius-sm);
        cursor: pointer;
        transition: all var(--transition);
    }
    .sort-btn:hover { color: var(--text); background: rgba(255,90,31,0.06); }
    .sort-btn.active { color: var(--primary); background: rgba(255,90,31,0.1); }
    /* ===== COMMUNITY POSTS ===== */
    .posts-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
    .post-card {
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        overflow: hidden;
        transition: all var(--transition);
        display: flex;
        flex-direction: column;
        box-shadow: var(--shadow-sm);
    }
    .post-card:hover {
        border-color: rgba(255,90,31,0.4);
        box-shadow: var(--shadow-md), var(--glow-primary);
        transform: translateY(-2px);
        background: var(--card-bg-hover);
    }
    .post-card .post-thumb {
        position: relative;
        aspect-ratio: 16/9;
        overflow: hidden;
        background: var(--bg-elevated);
    }
    .post-card .post-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }
    .post-card:hover .post-thumb img { transform: scale(1.05); }
    .post-card .post-thumb .post-badge {
        position: absolute;
        top: 12px;
        left: 12px;
        padding: 4px 12px;
        background: rgba(13,15,18,0.85);
        border: 1px solid var(--primary);
        color: var(--primary);
        font-family: var(--font-nav);
        font-weight: 700;
        font-size: 0.75rem;
        letter-spacing: 0.05em;
        border-radius: 20px;
        backdrop-filter: blur(6px);
    }
    .post-card .post-body {
        padding: 18px 20px 20px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }
    .post-card .post-title {
        font-size: 1.05rem;
        font-weight: 700;
        font-family: var(--font-heading);
        color: var(--text);
        margin-bottom: 8px;
        line-height: 1.4;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .post-card .post-title a { color: var(--text); }
    .post-card .post-title a:hover { color: var(--primary); }
    .post-card .post-excerpt {
        font-size: 0.9rem;
        color: var(--text-muted);
        margin-bottom: 14px;
        line-height: 1.6;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
        flex: 1;
    }
    .post-card .post-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 8px;
        font-family: var(--font-nav);
        font-size: 0.8rem;
        color: var(--text-dim);
        padding-top: 12px;
        border-top: 1px solid var(--border);
    }
    .post-card .post-meta .post-tags {
        display: flex;
        gap: 6px;
        flex-wrap: wrap;
    }
    .post-card .post-meta .post-tag {
        padding: 2px 8px;
        background: rgba(0,229,255,0.08);
        border: 1px solid rgba(0,229,255,0.2);
        color: var(--accent);
        border-radius: 12px;
        font-size: 0.72rem;
        font-weight: 600;
    }
    .post-card .post-meta .post-date {
        white-space: nowrap;
    }
    .post-card .post-author {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 12px;
        font-size: 0.85rem;
        color: var(--text-muted);
    }
    .post-card .post-author .author-avatar {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
        display: flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        font-weight: 700;
        font-size: 0.75rem;
        font-family: var(--font-nav);
    }
    .post-card .post-author .author-name { font-weight: 600; color: var(--text-muted); }
    .post-card .post-stats {
        display: flex;
        gap: 14px;
        font-size: 0.8rem;
        color: var(--text-dim);
    }
    .post-card .post-stats span { display: flex; align-items: center; gap: 4px; }
    .post-card .post-stats i { font-size: 0.75rem; }
    /* ===== FEATURED TOPICS ===== */
    .featured-topics {
        background: var(--bg-elevated);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 32px;
        margin-top: 48px;
    }
    .featured-topics .featured-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 24px;
        flex-wrap: wrap;
        gap: 12px;
    }
    .featured-topics .featured-header h2 {
        font-size: 1.4rem;
        font-weight: 900;
        margin-bottom: 0;
    }
    .featured-topics .featured-header .view-more {
        font-family: var(--font-nav);
        font-weight: 600;
        color: var(--primary);
        font-size: 0.9rem;
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .featured-topics .featured-header .view-more:hover { color: var(--text); }
    .featured-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .featured-card {
        display: flex;
        gap: 16px;
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 16px;
        transition: all var(--transition);
        align-items: flex-start;
    }
    .featured-card:hover {
        border-color: rgba(255,90,31,0.4);
        box-shadow: var(--glow-primary);
        transform: translateY(-1px);
    }
    .featured-card .featured-img {
        width: 120px;
        height: 80px;
        border-radius: var(--radius-sm);
        overflow: hidden;
        flex-shrink: 0;
        background: var(--bg);
    }
    .featured-card .featured-img img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .featured-card .featured-info { flex: 1; }
    .featured-card .featured-info .featured-topic-label {
        font-family: var(--font-nav);
        font-weight: 700;
        font-size: 0.72rem;
        color: var(--primary);
        letter-spacing: 0.05em;
        text-transform: uppercase;
        margin-bottom: 4px;
    }
    .featured-card .featured-info h3 {
        font-size: 1rem;
        font-weight: 700;
        margin-bottom: 6px;
        line-height: 1.4;
    }
    .featured-card .featured-info p {
        font-size: 0.85rem;
        color: var(--text-muted);
        margin-bottom: 0;
        line-height: 1.55;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    /* ===== COMMUNITY STATS ===== */
    .community-stats {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        margin-top: 48px;
    }
    .stat-card {
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        padding: 24px 20px;
        text-align: center;
        transition: all var(--transition);
    }
    .stat-card:hover {
        border-color: rgba(255,90,31,0.3);
        box-shadow: var(--glow-primary);
        transform: translateY(-2px);
    }
    .stat-card .stat-value {
        font-family: var(--font-heading);
        font-weight: 900;
        font-size: 2rem;
        color: var(--primary);
        line-height: 1.2;
        margin-bottom: 6px;
        text-shadow: 0 0 16px rgba(255,90,31,0.3);
    }
    .stat-card .stat-label {
        font-family: var(--font-nav);
        font-size: 0.85rem;
        color: var(--text-muted);
        letter-spacing: 0.04em;
    }
    .stat-card .stat-trend {
        font-size: 0.8rem;
        font-weight: 600;
        color: var(--secondary);
        margin-top: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 4px;
    }
    /* ===== FAQ ===== */
    .community-faq {
        margin-top: 48px;
    }
    .community-faq .accordion {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .community-faq .accordion-item {
        border: 1px solid var(--border);
        border-radius: var(--radius);
        margin-bottom: 12px;
        background: var(--card-bg);
        overflow: hidden;
        transition: all var(--transition);
    }
    .community-faq .accordion-item:hover {
        border-color: var(--border-light);
    }
    .community-faq .accordion-item.is-active {
        border-color: rgba(255,90,31,0.4);
        box-shadow: var(--glow-primary);
    }
    .community-faq .accordion-title {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 16px 20px;
        font-family: var(--font-heading);
        font-weight: 700;
        font-size: 1rem;
        color: var(--text);
        cursor: pointer;
        transition: color var(--transition);
    }
    .community-faq .accordion-title:hover { color: var(--primary); }
    .community-faq .accordion-title .faq-icon {
        flex-shrink: 0;
        color: var(--text-dim);
        font-size: 0.9rem;
        transition: transform var(--transition);
    }
    .community-faq .accordion-item.is-active .accordion-title .faq-icon {
        color: var(--primary);
        transform: rotate(180deg);
    }
    .community-faq .accordion-content {
        padding: 0 20px 18px;
        color: var(--text-muted);
        font-size: 0.95rem;
        line-height: 1.8;
    }
    /* ===== CTA / SUBSCRIBE ===== */
    .community-cta {
        margin-top: 48px;
        background: linear-gradient(135deg, rgba(255,90,31,0.08) 0%, rgba(0,229,255,0.04) 100%);
        border: 1px solid rgba(255,90,31,0.25);
        border-radius: var(--radius-lg);
        padding: 40px 32px;
        text-align: center;
    }
    .community-cta h2 {
        font-size: 1.5rem;
        font-weight: 900;
        margin-bottom: 12px;
    }
    .community-cta .cta-desc {
        font-size: 0.95rem;
        color: var(--text-muted);
        max-width: 560px;
        margin: 0 auto 24px;
        line-height: 1.7;
    }
    .subscription-form {
        display: flex;
        align-items: center;
        gap: 12px;
        max-width: 520px;
        margin: 0 auto;
        flex-wrap: wrap;
        justify-content: center;
    }
    .subscription-form input[type="email"] {
        flex: 1;
        min-width: 200px;
        padding: 12px 16px;
        background: var(--bg);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-sm);
        color: var(--text);
        font-family: var(--font-body);
        font-size: 0.95rem;
        transition: all var(--transition);
    }
    .subscription-form input[type="email"]:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 3px rgba(255,90,31,0.15);
    }
    .subscription-form .btn-primary {
        padding: 12px 24px;
        background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        color: #fff;
        font-family: var(--font-nav);
        font-weight: 700;
        font-size: 0.9rem;
        letter-spacing: 0.03em;
        border: none;
        border-radius: var(--radius-sm);
        cursor: pointer;
        transition: all var(--transition);
        box-shadow: 0 4px 16px rgba(255,90,31,0.3);
        white-space: nowrap;
    }
    .subscription-form .btn-primary:hover {
        background: linear-gradient(135deg, #FF6B3A 0%, #F05520 100%);
        box-shadow: 0 6px 24px rgba(255,90,31,0.45);
        transform: translateY(-1px);
    }
    /* ===== RELATED CATEGORIES ===== */
    .related-categories {
        margin-top: 48px;
    }
    .related-categories-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
    .related-category-link {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 16px;
        background: var(--card-bg);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        color: var(--text-muted);
        font-family: var(--font-nav);
        font-weight: 600;
        font-size: 0.9rem;
        transition: all var(--transition);
    }
    .related-category-link:hover {
        color: var(--text);
        border-color: rgba(255,90,31,0.3);
        box-shadow: var(--glow-primary);
        transform: translateY(-2px);
    }
    .related-category-link i {
        color: var(--primary);
        font-size: 1.1rem;
        flex-shrink: 0;
    }
    /* ===== FOOTER ===== */
    .site-footer {
        background: var(--bg-elevated);
        border-top: 1px solid var(--border);
        padding: 48px 0 24px;
        margin-top: 64px;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 32px;
        margin-bottom: 32px;
    }
    .footer-brand h4 {
        font-family: var(--font-heading);
        font-weight: 900;
        font-size: 1.5rem;
        color: var(--text);
        margin-bottom: 12px;
    }
    .footer-brand h4 span { color: var(--primary); }
    .footer-brand p {
        font-size: 0.9rem;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 0;
        max-width: 300px;
    }
    .footer-col h5 {
        font-family: var(--font-nav);
        font-weight: 700;
        font-size: 0.9rem;
        letter-spacing: 0.05em;
        color: var(--text);
        text-transform: uppercase;
        margin-bottom: 16px;
    }
    .footer-col ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .footer-col ul li { margin-bottom: 10px; }
    .footer-col ul a {
        color: var(--text-muted);
        font-size: 0.9rem;
        transition: color var(--transition);
        display: flex;
        align-items: center;
        gap: 6px;
    }
    .footer-col ul a:hover { color: var(--primary); }
    .footer-col ul a i { font-size: 0.7rem; color: var(--text-dim); }
    .footer-bottom {
        border-top: 1px solid var(--border);
        padding-top: 20px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        font-size: 0.82rem;
        color: var(--text-dim);
    }
    .footer-bottom .fb-links {
        display: flex;
        gap: 16px;
    }
    .footer-bottom .fb-links a {
        color: var(--text-dim);
        transition: color var(--transition);
    }
    .footer-bottom .fb-links a:hover { color: var(--primary); }
    /* ===== FOUNDATION OVERRIDES ===== */
    .grid-x { margin: 0; }
    .grid-padding-x { margin: 0 -12px; }
    .grid-padding-x > .cell { padding: 0 12px; }
    .accordion { background: transparent; }
    .accordion-item { background: transparent; }
    .accordion-title {
        font-family: var(--font-heading);
        font-weight: 700;
        font-size: 1rem;
        color: var(--text);
        background: transparent;
        border: none;
    }
    .accordion-content {
        background: transparent;
        color: var(--text-muted);
    }
    /* ===== RESPONSIVE ===== */
    @media (max-width: 1024px) {
        .posts-grid { grid-template-columns: repeat(2, 1fr); }
        .community-stats { grid-template-columns: repeat(2, 1fr); }
        .related-categories-grid { grid-template-columns: repeat(2, 1fr); }
        .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
        .footer-brand { grid-column: 1 / -1; }
    }
    @media (max-width: 768px) {
        :root { --section-pad: 48px 0; }
        .nav-menu-wrapper { display: none; }
        .nav-cta-desktop { display: none; }
        .nav-toggle { display: flex; }
        .mobile-nav.show { display: block; }
        .mobile-nav .nav-cta { display: flex; }
        .header-inner { min-height: 60px; }
        .category-hero { padding: 36px 0 32px; }
        .category-hero h1 { font-size: 1.8rem; }
        .filter-toolbar {
            flex-direction: column;
            align-items: flex-start;
            padding: 14px 16px;
        }
        .posts-grid { grid-template-columns: 1fr; }
        .featured-grid { grid-template-columns: 1fr; }
        .featured-card .featured-img { width: 100px; height: 70px; }
        .community-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; }
        .related-categories-grid { grid-template-columns: 1fr; }
        .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
        .footer-brand { grid-column: 1 / -1; }
        .footer-bottom { flex-direction: column; align-items: flex-start; }
        .community-cta { padding: 28px 18px; }
        .subscription-form { flex-direction: column; }
        .subscription-form input[type="email"] { width: 100%; min-width: auto; }
        .subscription-form .btn-primary { width: 100%; }
        .featured-topics { padding: 20px 16px; }
    }
    @media (max-width: 520px) {
        .container-main { padding: 0 16px; }
        .category-hero h1 { font-size: 1.5rem; }
        .section-title { font-size: 1.5rem; }
        .community-stats { grid-template-columns: 1fr 1fr; gap: 10px; }
        .stat-card { padding: 18px 12px; }
        .stat-card .stat-value { font-size: 1.5rem; }
        .filter-group { width: 100%; }
        .filter-chip { font-size: 0.78rem; padding: 5px 10px; }
        .sort-buttons { width: 100%; justify-content: flex-start; }
    }