/* roulang page: index */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0F1A2E;
            --bg-card: rgba(15, 23, 42, 0.72);
            --bg-card-solid: #111C31;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-low: rgba(148, 163, 184, 0.18);
            --border-hover: rgba(148, 163, 184, 0.32);
            --cyan: #22D3EE;
            --violet: #A78BFA;
            --amber: #F59E0B;
            --emerald: #10B981;
            --red: #EF4444;
            --gradient-brand: linear-gradient(135deg, #22D3EE 0%, #A78BFA 100%);
            --gradient-brand-reverse: linear-gradient(135deg, #A78BFA 0%, #22D3EE 100%);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 18px 42px rgba(0, 0, 0, 0.28), 0 0 0 1px rgba(34, 211, 238, 0.12);
            --shadow-glow-cyan: 0 0 24px rgba(34, 211, 238, 0.28);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --radius-2xl: 28px;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--cyan);
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            color: inherit;
            transition: var(--transition-base);
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        ::selection {
            background: rgba(34, 211, 238, 0.3);
            color: #FFFFFF;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section-pad {
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .section-pad-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .text-gradient {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .bg-gradient-brand {
            background: var(--gradient-brand);
        }

        .border-gradient-top {
            border-top: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent) 1;
        }

        .card-dark {
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: var(--transition-base);
        }

        .card-dark:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .badge-gradient {
            background: var(--gradient-brand);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: #0B1220;
            display: inline-block;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .badge-outline {
            border: 1px solid rgba(34, 211, 238, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            color: var(--cyan);
            display: inline-block;
            white-space: nowrap;
            background: rgba(34, 211, 238, 0.06);
        }

        .badge-amber {
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid rgba(245, 158, 11, 0.4);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--amber);
            display: inline-block;
            white-space: nowrap;
        }

        .badge-emerald {
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--emerald);
            display: inline-block;
            white-space: nowrap;
        }

        .badge-red {
            background: rgba(239, 68, 68, 0.12);
            border: 1px solid rgba(239, 68, 68, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--red);
            display: inline-block;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--gradient-brand);
            color: #0B1220;
            font-weight: 700;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            transition: var(--transition-base);
            box-shadow: 0 6px 20px rgba(34, 211, 238, 0.25);
            letter-spacing: 0.01em;
            line-height: 1.4;
        }

        .btn-primary:hover {
            filter: brightness(1.12);
            box-shadow: 0 10px 32px rgba(34, 211, 238, 0.38);
            transform: translateY(-2px);
            color: #0B1220;
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }

        .btn-primary:active {
            filter: brightness(0.92);
            transform: translateY(0);
            box-shadow: 0 3px 12px rgba(34, 211, 238, 0.2);
        }

        .btn-secondary {
            border: 1px solid var(--border-low);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            transition: var(--transition-base);
            background: rgba(15, 23, 42, 0.5);
            line-height: 1.4;
        }

        .btn-secondary:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.06);
            transform: translateY(-2px);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }

        .btn-secondary:active {
            transform: translateY(0);
            filter: brightness(0.9);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--cyan);
            margin-bottom: 14px;
        }

        .section-label::before {
            content: '';
            display: block;
            width: 24px;
            height: 2px;
            background: var(--gradient-brand);
            border-radius: 2px;
        }

        .section-title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.35;
            letter-spacing: -0.01em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 2px;
            position: relative;
            transition: var(--transition-base);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gradient-brand);
            border-radius: 2px;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--text-primary);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--cyan);
            font-weight: 600;
        }

        .nav-link.active::after {
            width: 100%;
        }

        .logo-text {
            font-size: 24px;
            font-weight: 800;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }

        .header-sticky {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(11, 18, 32, 0.86);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-low);
            transition: var(--transition-base);
        }

        .header-sticky.scrolled {
            background: rgba(11, 18, 32, 0.95);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
        }

        .mobile-menu-btn {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            border: 1px solid var(--border-low);
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            transition: var(--transition-base);
            background: var(--bg-card);
        }

        .mobile-menu-btn:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }

        .mobile-menu-btn:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(11, 18, 32, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 40;
            padding: 24px 20px;
            overflow-y: auto;
            flex-direction: column;
            gap: 4px;
        }

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

        .mobile-nav-link {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-secondary);
            padding: 14px 16px;
            border-radius: 12px;
            transition: var(--transition-base);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .mobile-nav-link:hover {
            background: rgba(34, 211, 238, 0.08);
            color: var(--cyan);
        }

        .mobile-nav-link.active {
            background: rgba(34, 211, 238, 0.12);
            color: var(--cyan);
        }

        .fixed-bottom-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 45;
            background: rgba(11, 18, 32, 0.94);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-top: 1px solid var(--border-low);
            padding: 12px 20px;
            box-shadow: 0 -8px 28px rgba(0, 0, 0, 0.32);
        }

        .divider-gradient {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-low), var(--border-hover), var(--border-low), transparent);
        }

        .hero-bg-overlay {
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.82) 0%, rgba(11, 18, 32, 0.55) 50%, rgba(11, 18, 32, 0.92) 100%);
        }

        .hero-glow {
            position: absolute;
            border-radius: 50%;
            filter: blur(90px);
            pointer-events: none;
        }

        .data-badge-large {
            background: rgba(15, 23, 42, 0.85);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-md);
            padding: 18px 22px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: var(--transition-base);
        }

        .data-badge-large:hover {
            border-color: rgba(34, 211, 238, 0.4);
            box-shadow: var(--shadow-glow-cyan);
        }

        .mono-num {
            font-family: 'SF Mono', 'Cascadia Code', 'JetBrains Mono', 'Consolas', monospace;
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        .score-badge {
            background: var(--gradient-brand);
            color: #0B1220;
            font-weight: 800;
            font-size: 20px;
            padding: 6px 18px;
            border-radius: 12px;
            font-family: 'SF Mono', 'Cascadia Code', monospace;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }

        .team-tag {
            font-weight: 600;
            font-size: 14px;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .match-card {
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            transition: var(--transition-base);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .match-card:hover {
            border-color: rgba(34, 211, 238, 0.35);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .rank-row {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 18px;
            border-radius: var(--radius-sm);
            background: rgba(15, 23, 42, 0.55);
            border: 1px solid var(--border-low);
            transition: var(--transition-base);
        }

        .rank-row:hover {
            border-color: rgba(34, 211, 238, 0.3);
            background: rgba(15, 23, 42, 0.8);
        }

        .rank-num {
            font-weight: 800;
            font-size: 18px;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-family: 'SF Mono', 'Cascadia Code', monospace;
        }

        .rank-num.top1 {
            background: var(--gradient-brand);
            color: #0B1220;
        }
        .rank-num.top2 {
            background: rgba(167, 139, 250, 0.2);
            color: var(--violet);
            border: 1px solid rgba(167, 139, 250, 0.4);
        }
        .rank-num.top3 {
            background: rgba(34, 211, 238, 0.15);
            color: var(--cyan);
            border: 1px solid rgba(34, 211, 238, 0.35);
        }
        .rank-num.normal {
            background: rgba(148, 163, 184, 0.1);
            color: var(--text-secondary);
            border: 1px solid var(--border-low);
        }

        .image-cover {
            border-radius: var(--radius-md);
            overflow: hidden;
            object-fit: cover;
            width: 100%;
            height: 100%;
        }

        .gradient-ring {
            border: 2px solid transparent;
            background-image: linear-gradient(var(--bg-card-solid), var(--bg-card-solid)), var(--gradient-brand);
            background-origin: border-box;
            background-clip: content-box, border-box;
        }

        .scenario-img-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-low);
            box-shadow: var(--shadow-card);
        }

        .scenario-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 30%, rgba(11, 18, 32, 0.75) 100%);
            pointer-events: none;
            border-radius: var(--radius-lg);
        }

        @media (max-width: 1024px) {
            .nav-desktop-group {
                gap: 18px;
            }
            .nav-link {
                font-size: 13px;
            }
            .section-title {
                font-size: 26px;
            }
            .section-pad {
                padding-top: 60px;
                padding-bottom: 60px;
            }
        }

        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .logo-text {
                font-size: 20px;
            }
            .section-title {
                font-size: 22px;
            }
            .section-desc {
                font-size: 14px;
            }
            .section-pad {
                padding-top: 44px;
                padding-bottom: 44px;
            }
            .section-pad-sm {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .hero-title {
                font-size: 24px;
            }
            .hero-desc {
                font-size: 14px;
                line-height: 1.75;
            }
            .btn-primary,
            .btn-secondary {
                font-size: 14px;
                padding: 12px 24px;
            }
            .fixed-bottom-bar {
                padding: 10px 14px;
            }
            .score-badge {
                font-size: 16px;
                padding: 4px 12px;
            }
            .match-card {
                padding: 16px 18px;
            }
            .data-badge-large {
                padding: 14px 16px;
                gap: 10px;
            }
            .rank-row {
                padding: 10px 12px;
                gap: 10px;
            }
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }
        }

        @media (max-width: 520px) {
            .hero-title {
                font-size: 20px;
                letter-spacing: -0.01em;
            }
            .section-title {
                font-size: 19px;
            }
            .hero-desc {
                font-size: 13px;
            }
            .btn-primary,
            .btn-secondary {
                font-size: 13px;
                padding: 10px 18px;
                gap: 6px;
            }
            .badge-gradient,
            .badge-outline,
            .badge-amber,
            .badge-emerald,
            .badge-red {
                font-size: 11px;
                padding: 3px 10px;
            }
            .fixed-bottom-bar {
                padding: 8px 10px;
                flex-wrap: wrap;
                gap: 8px;
            }
        }

/* roulang page: category1 */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0F1A2E;
            --bg-card: rgba(15, 23, 42, 0.72);
            --bg-card-solid: #111C31;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-low: rgba(148, 163, 184, 0.18);
            --border-hover: rgba(148, 163, 184, 0.32);
            --cyan: #22D3EE;
            --violet: #A78BFA;
            --amber: #F59E0B;
            --emerald: #10B981;
            --red: #EF4444;
            --gradient-brand: linear-gradient(135deg, #22D3EE 0%, #A78BFA 100%);
            --gradient-brand-reverse: linear-gradient(135deg, #A78BFA 0%, #22D3EE 100%);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 18px 42px rgba(0, 0, 0, 0.28), 0 0 0 1px rgba(34, 211, 238, 0.12);
            --shadow-glow-cyan: 0 0 24px rgba(34, 211, 238, 0.28);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --radius-2xl: 28px;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a:hover {
            color: var(--cyan);
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            color: inherit;
            transition: var(--transition-base);
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section-pad {
            padding-top: 80px;
            padding-bottom: 80px;
        }

        .section-pad-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }

        .text-gradient {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .bg-gradient-brand {
            background: var(--gradient-brand);
        }

        .border-gradient-top {
            border-top: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent) 1;
        }

        .card-dark {
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: var(--transition-base);
        }

        .card-dark:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .badge-gradient {
            background: var(--gradient-brand);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: #0B1220;
            display: inline-block;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .badge-outline {
            border: 1px solid rgba(34, 211, 238, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            color: var(--cyan);
            display: inline-block;
            white-space: nowrap;
            background: rgba(34, 211, 238, 0.06);
        }

        .badge-amber {
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid rgba(245, 158, 11, 0.4);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--amber);
            display: inline-block;
            white-space: nowrap;
        }

        .badge-emerald {
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--emerald);
            display: inline-block;
            white-space: nowrap;
        }

        .badge-red {
            background: rgba(239, 68, 68, 0.12);
            border: 1px solid rgba(239, 68, 68, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--red);
            display: inline-block;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--gradient-brand);
            color: #0B1220;
            font-weight: 700;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: var(--transition-base);
            box-shadow: 0 4px 16px rgba(34, 211, 238, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 10px 28px rgba(34, 211, 238, 0.4);
            filter: brightness(1.08);
            color: #0B1220;
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }

        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.95);
        }

        .btn-secondary {
            border: 1px solid var(--border-hover);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: rgba(15, 23, 42, 0.6);
            transition: var(--transition-base);
        }

        .btn-secondary:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            box-shadow: 0 0 20px rgba(34, 211, 238, 0.15);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }

        .btn-secondary:active {
            transform: scale(0.98);
        }

        .divider-gradient {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent);
            opacity: 0.5;
        }

        .header-sticky {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 18, 32, 0.9);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-low);
            transition: var(--transition-base);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 0.04em;
            white-space: nowrap;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 4px;
            position: relative;
            white-space: nowrap;
            transition: var(--transition-base);
        }

        .nav-link:hover {
            color: var(--text-primary);
        }

        .nav-link.active {
            color: var(--cyan);
            font-weight: 600;
        }

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gradient-brand);
            border-radius: 2px;
        }

        .mobile-menu-btn {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid var(--border-low);
            color: var(--text-primary);
            background: var(--bg-card);
            transition: var(--transition-base);
        }

        .mobile-menu-btn:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }

        .mobile-menu-btn:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        .mobile-menu-panel {
            display: none;
            background: rgba(11, 18, 32, 0.97);
            border-top: 1px solid var(--border-low);
            padding: 16px 20px 24px;
            flex-direction: column;
            gap: 12px;
        }

        .mobile-menu-panel.open {
            display: flex;
        }

        .mobile-menu-panel a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 10px 12px;
            border-radius: 8px;
            transition: var(--transition-base);
        }

        .mobile-menu-panel a:hover {
            color: var(--text-primary);
            background: rgba(34, 211, 238, 0.08);
        }

        .mobile-menu-panel a.active {
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.1);
            font-weight: 600;
        }

        .score-badge {
            font-weight: 800;
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.03em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            font-size: 28px;
            line-height: 1.2;
        }

        .score-badge-amber {
            font-weight: 800;
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.03em;
            color: var(--amber);
            font-size: 28px;
            line-height: 1.2;
        }

        .team-card-hover:hover {
            border-color: rgba(34, 211, 238, 0.3);
            box-shadow: var(--shadow-card-hover);
        }

        .faq-item {
            border: 1px solid var(--border-low);
            border-radius: var(--radius-md);
            background: var(--bg-card);
            overflow: hidden;
            transition: var(--transition-base);
        }

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

        .faq-question {
            padding: 18px 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
            transition: var(--transition-base);
            user-select: none;
        }

        .faq-question:hover {
            color: var(--cyan);
        }

        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            display: none;
        }

        .faq-item.open .faq-answer {
            display: block;
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--cyan);
        }

        .faq-icon {
            transition: transform 0.3s ease;
            flex-shrink: 0;
            color: var(--text-muted);
        }

        .form-input {
            background: rgba(11, 18, 32, 0.8);
            border: 1px solid var(--border-low);
            border-radius: 12px;
            padding: 14px 18px;
            color: var(--text-primary);
            font-size: 15px;
            width: 100%;
            transition: var(--transition-base);
        }

        .form-input::placeholder {
            color: var(--text-muted);
        }

        .form-input:hover {
            border-color: var(--border-hover);
        }

        .form-input:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }

        .tag-filter {
            padding: 8px 18px;
            border-radius: 9999px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid var(--border-low);
            background: var(--bg-card);
            transition: var(--transition-base);
            white-space: nowrap;
        }

        .tag-filter:hover {
            border-color: var(--border-hover);
            color: var(--text-primary);
        }

        .tag-filter.active {
            border-color: var(--cyan);
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.1);
            font-weight: 600;
        }

        .tag-filter:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        .stat-number {
            font-weight: 800;
            font-size: 32px;
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.02em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.3;
        }

        .stat-number-amber {
            font-weight: 800;
            font-size: 32px;
            font-variant-numeric: tabular-nums;
            letter-spacing: 0.02em;
            color: var(--amber);
            line-height: 1.3;
        }

        .cover-img-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
        }

        .cover-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(11, 18, 32, 0.6) 100%);
            pointer-events: none;
        }

        @media (max-width: 1024px) {
            .nav-desktop {
                display: none !important;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .logo-text {
                margin-left: auto;
                margin-right: auto;
            }
            .section-pad {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .stat-number,
            .stat-number-amber {
                font-size: 26px;
            }
        }

        @media (max-width: 768px) {
            .score-badge,
            .score-badge-amber {
                font-size: 22px;
            }
            .section-pad {
                padding-top: 40px;
                padding-bottom: 40px;
            }
            .section-pad-sm {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .faq-question {
                padding: 14px 16px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 16px 16px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 15px;
            }
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .btn-primary,
            .btn-secondary {
                font-size: 14px;
                padding: 12px 24px;
            }
            .stat-number,
            .stat-number-amber {
                font-size: 22px;
            }
            .logo-text {
                font-size: 19px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0F1A2E;
            --bg-card: rgba(15, 23, 42, 0.72);
            --bg-card-solid: #111C31;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-low: rgba(148, 163, 184, 0.18);
            --border-hover: rgba(148, 163, 184, 0.32);
            --cyan: #22D3EE;
            --violet: #A78BFA;
            --amber: #F59E0B;
            --emerald: #10B981;
            --red: #EF4444;
            --gradient-brand: linear-gradient(135deg, #22D3EE 0%, #A78BFA 100%);
            --gradient-brand-reverse: linear-gradient(135deg, #A78BFA 0%, #22D3EE 100%);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 18px 42px rgba(0, 0, 0, 0.28), 0 0 0 1px rgba(34, 211, 238, 0.12);
            --shadow-glow-cyan: 0 0 24px rgba(34, 211, 238, 0.28);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --radius-2xl: 28px;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover {
            color: var(--cyan);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            color: inherit;
            transition: var(--transition-base);
        }
        input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section-pad {
            padding-top: 80px;
            padding-bottom: 80px;
        }
        .section-pad-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .text-gradient {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-gradient-brand {
            background: var(--gradient-brand);
        }
        .border-gradient-top {
            border-top: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent) 1;
        }
        .card-dark {
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: var(--transition-base);
        }
        .card-dark:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .badge-gradient {
            background: var(--gradient-brand);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: #0B1220;
            display: inline-block;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .badge-outline {
            border: 1px solid rgba(34, 211, 238, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            color: var(--cyan);
            display: inline-block;
            white-space: nowrap;
            background: rgba(34, 211, 238, 0.06);
        }
        .badge-amber {
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid rgba(245, 158, 11, 0.4);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--amber);
            display: inline-block;
            white-space: nowrap;
        }
        .badge-emerald {
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--emerald);
            display: inline-block;
            white-space: nowrap;
        }
        .badge-red {
            background: rgba(239, 68, 68, 0.12);
            border: 1px solid rgba(239, 68, 68, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--red);
            display: inline-block;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--gradient-brand);
            color: #0B1220;
            font-weight: 700;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: var(--transition-base);
            box-shadow: var(--shadow-glow-cyan);
            border: 1px solid rgba(34, 211, 238, 0.5);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(34, 211, 238, 0.4);
            filter: brightness(1.05);
            color: #0B1220;
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }
        .btn-primary:active {
            transform: translateY(0) scale(0.97);
            filter: brightness(0.9);
        }
        .btn-secondary {
            border: 1px solid rgba(148, 163, 184, 0.35);
            background: rgba(148, 163, 184, 0.06);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: var(--transition-base);
        }
        .btn-secondary:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.06);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }
        .btn-secondary:active {
            transform: scale(0.97);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 0.02em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .divider-gradient {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.35), rgba(167, 139, 250, 0.35), transparent);
        }

        /* header */
        .header-sticky {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 18, 32, 0.9);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-low);
        }
        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 10px;
            position: relative;
            white-space: nowrap;
            border-radius: 8px;
            transition: var(--transition-base);
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(148, 163, 184, 0.08);
        }
        .nav-link.active {
            color: var(--cyan);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 10px;
            right: 10px;
            height: 2px;
            background: var(--gradient-brand);
            border-radius: 9999px;
        }
        .nav-link:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid var(--border-low);
            background: rgba(148, 163, 184, 0.06);
            color: var(--text-primary);
            transition: var(--transition-base);
        }
        .mobile-menu-btn:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }
        .mobile-menu-btn:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }
        .mobile-menu-panel {
            display: none;
            padding: 16px 20px;
            background: rgba(11, 18, 32, 0.98);
            border-bottom: 1px solid var(--border-low);
            flex-direction: column;
            gap: 8px;
        }
        .mobile-menu-panel.open {
            display: flex;
        }
        .mobile-menu-panel .nav-link {
            font-size: 16px;
            padding: 12px 14px;
            display: block;
            border-radius: 10px;
        }
        .mobile-menu-panel .nav-link.active::after {
            display: none;
        }

        /* H1 area */
        .h1-area {
            position: relative;
            padding-top: 56px;
            padding-bottom: 40px;
            overflow: hidden;
        }
        .h1-area::before {
            content: "";
            position: absolute;
            top: -120px;
            left: 10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.12), transparent 70%);
            pointer-events: none;
        }
        .h1-area::after {
            content: "";
            position: absolute;
            bottom: -150px;
            right: -5%;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle, rgba(167, 139, 250, 0.1), transparent 70%);
            pointer-events: none;
        }
        .breadcrumb {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--cyan);
        }
        .breadcrumb .sep {
            color: var(--text-muted);
            font-size: 12px;
        }

        /* filter tags */
        .filter-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 9999px;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid var(--border-low);
            color: var(--text-secondary);
            background: rgba(148, 163, 184, 0.04);
            transition: var(--transition-base);
            white-space: nowrap;
            cursor: pointer;
        }
        .filter-tag:hover {
            border-color: var(--border-hover);
            color: var(--text-primary);
        }
        .filter-tag.active {
            background: var(--gradient-brand);
            border-color: transparent;
            color: #0B1220;
            font-weight: 700;
        }
        .filter-tag:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        /* schedule card */
        .schedule-card {
            display: flex;
            flex-direction: column;
            gap: 14px;
            padding: 22px 24px;
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-lg);
            transition: var(--transition-base);
            position: relative;
        }
        .schedule-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }
        .schedule-card .date-badge {
            font-size: 13px;
            font-weight: 700;
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.08);
            border: 1px solid rgba(34, 211, 238, 0.25);
            border-radius: 9999px;
            padding: 4px 14px;
            display: inline-block;
            white-space: nowrap;
        }
        .team-name {
            font-weight: 700;
            font-size: 16px;
            color: var(--text-primary);
        }
        .team-vs {
            font-size: 12px;
            color: var(--text-muted);
            font-weight: 600;
            letter-spacing: 0.1em;
        }
        .schedule-meta {
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }

        /* stat band */
        .stat-band {
            background: linear-gradient(135deg, rgba(34, 211, 238, 0.07), rgba(167, 139, 250, 0.07));
            border: 1px solid var(--border-low);
            border-radius: var(--radius-xl);
            padding: 28px 32px;
        }
        .stat-number {
            font-size: 36px;
            font-weight: 800;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.01em;
        }

        /* focus card */
        .focus-card {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-low);
            background: var(--bg-card);
            transition: var(--transition-base);
        }
        .focus-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .focus-card .focus-img {
            height: 180px;
            object-fit: cover;
            width: 100%;
        }
        .focus-card .focus-body {
            padding: 20px 24px;
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--border-low);
            border-radius: var(--radius-md);
            background: rgba(15, 23, 42, 0.6);
            transition: var(--transition-base);
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            transition: var(--transition-base);
            cursor: pointer;
        }
        .faq-question:hover {
            color: var(--cyan);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: -2px;
        }
        .faq-question .faq-icon {
            transition: transform 0.3s ease;
            color: var(--text-secondary);
            font-size: 14px;
            flex-shrink: 0;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            color: var(--cyan);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        /* subscribe CTA */
        .subscribe-card {
            background: linear-gradient(135deg, rgba(34, 211, 238, 0.08), rgba(167, 139, 250, 0.08));
            border: 1px solid rgba(34, 211, 238, 0.25);
            border-radius: var(--radius-xl);
            padding: 36px 40px;
            position: relative;
            overflow: hidden;
        }
        .subscribe-card::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -50px;
            width: 250px;
            height: 250px;
            background: radial-gradient(circle, rgba(34, 211, 238, 0.18), transparent 70%);
            pointer-events: none;
        }
        .subscribe-input {
            background: rgba(11, 18, 32, 0.7);
            border: 1px solid var(--border-low);
            border-radius: 9999px;
            padding: 14px 22px;
            font-size: 14px;
            color: var(--text-primary);
            width: 100%;
            transition: var(--transition-base);
        }
        .subscribe-input::placeholder {
            color: var(--text-muted);
        }
        .subscribe-input:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
            outline: none;
        }

        /* footer */
        footer {
            background: rgba(8, 14, 26, 0.9);
            border-top: 1px solid var(--border-low);
            padding-bottom: 100px;
        }
        footer h4 {
            color: #E2E8F0;
        }
        footer a:hover {
            color: var(--cyan);
        }

        /* responsive */
        @media (max-width: 1024px) {
            .nav-desktop-group .nav-link {
                font-size: 13px;
                padding: 6px 8px;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none !important;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .logo-text {
                font-size: 18px;
            }
            .section-pad {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .section-pad-sm {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .h1-area {
                padding-top: 36px;
                padding-bottom: 28px;
            }
            .stat-number {
                font-size: 28px;
            }
            .schedule-card {
                padding: 16px 18px;
            }
            .subscribe-card {
                padding: 24px 20px;
            }
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }
        @media (max-width: 520px) {
            .filter-tag {
                font-size: 12px;
                padding: 6px 14px;
            }
            .team-name {
                font-size: 14px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer {
                font-size: 13px;
                padding: 0 16px 16px;
            }
            .faq-item.open .faq-answer {
                padding: 0 16px 16px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0F1A2E;
            --bg-card: rgba(15, 23, 42, 0.72);
            --bg-card-solid: #111C31;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-low: rgba(148, 163, 184, 0.18);
            --border-hover: rgba(148, 163, 184, 0.32);
            --cyan: #22D3EE;
            --violet: #A78BFA;
            --amber: #F59E0B;
            --emerald: #10B981;
            --red: #EF4444;
            --gradient-brand: linear-gradient(135deg, #22D3EE 0%, #A78BFA 100%);
            --gradient-brand-reverse: linear-gradient(135deg, #A78BFA 0%, #22D3EE 100%);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 18px 42px rgba(0, 0, 0, 0.28), 0 0 0 1px rgba(34, 211, 238, 0.12);
            --shadow-glow-cyan: 0 0 24px rgba(34, 211, 238, 0.28);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --radius-2xl: 28px;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover {
            color: var(--cyan);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            color: inherit;
            transition: var(--transition-base);
        }
        input, select, textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section-pad {
            padding-top: 72px;
            padding-bottom: 72px;
        }
        .section-pad-sm {
            padding-top: 44px;
            padding-bottom: 44px;
        }
        .text-gradient {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-gradient-brand {
            background: var(--gradient-brand);
        }
        .border-gradient-top {
            border-top: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent) 1;
        }
        .card-dark {
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: var(--transition-base);
        }
        .card-dark:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .badge-gradient {
            background: var(--gradient-brand);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: #0B1220;
            display: inline-block;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .badge-outline {
            border: 1px solid rgba(34, 211, 238, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            color: var(--cyan);
            display: inline-block;
            white-space: nowrap;
            background: rgba(34, 211, 238, 0.06);
        }
        .badge-amber {
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid rgba(245, 158, 11, 0.4);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--amber);
            display: inline-block;
            white-space: nowrap;
        }
        .badge-emerald {
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--emerald);
            display: inline-block;
            white-space: nowrap;
        }
        .badge-red {
            background: rgba(239, 68, 68, 0.12);
            border: 1px solid rgba(239, 68, 68, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--red);
            display: inline-block;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--gradient-brand);
            color: #0B1220;
            font-weight: 700;
            font-size: 15px;
            padding: 13px 30px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: var(--transition-base);
            box-shadow: 0 8px 24px rgba(34, 211, 238, 0.22);
        }
        .btn-primary:hover {
            filter: brightness(1.1);
            transform: translateY(-1px);
            box-shadow: 0 12px 32px rgba(34, 211, 238, 0.3);
            color: #0B1220;
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }
        .btn-primary:active {
            transform: translateY(1px);
            filter: brightness(0.92);
        }
        .btn-secondary {
            border: 1px solid var(--border-hover);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 13px 30px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: rgba(148, 163, 184, 0.06);
            transition: var(--transition-base);
        }
        .btn-secondary:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.08);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }
        .btn-secondary:active {
            transform: scale(0.97);
        }
        .divider-gradient {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.5), rgba(167, 139, 250, 0.5), transparent);
        }
        .logo-text {
            font-weight: 800;
            font-size: 22px;
            letter-spacing: 0.02em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .header-sticky {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(11, 18, 32, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-low);
        }
        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            position: relative;
            padding: 6px 2px;
            white-space: nowrap;
            transition: var(--transition-base);
        }
        .nav-link:hover {
            color: var(--text-primary);
        }
        .nav-link.active {
            color: var(--cyan);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient-brand);
        }
        .mobile-menu-btn {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid var(--border-low);
            background: rgba(148, 163, 184, 0.06);
            color: var(--text-primary);
            transition: var(--transition-base);
        }
        .mobile-menu-btn:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }
        .mobile-menu-btn:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }
        .mobile-menu-panel {
            display: none;
            border-top: 1px solid var(--border-low);
            background: rgba(11, 18, 32, 0.98);
            padding: 16px 20px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu-panel.open {
            display: flex;
        }
        .team-logo-placeholder {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(34, 211, 238, 0.18), rgba(167, 139, 250, 0.18));
            border: 1px solid rgba(34, 211, 238, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 20px;
            color: var(--cyan);
            flex-shrink: 0;
        }
        .stat-num {
            font-weight: 800;
            font-size: 24px;
            letter-spacing: -0.01em;
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-low);
        }
        .faq-question {
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-primary);
            gap: 12px;
            transition: var(--transition-base);
        }
        .faq-question:hover {
            color: var(--cyan);
        }
        .faq-question .fa-chevron-down {
            transition: transform 0.3s ease;
            font-size: 14px;
            color: var(--text-muted);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .fa-chevron-down {
            transform: rotate(180deg);
            color: var(--cyan);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.open .faq-answer {
            max-height: 260px;
            padding-bottom: 18px;
        }
        .team-card-hover:hover .team-logo-placeholder {
            border-color: var(--cyan);
            box-shadow: var(--shadow-glow-cyan);
        }
        .bg-grid-overlay {
            background-image: radial-gradient(circle at 30% 20%, rgba(34, 211, 238, 0.08) 0%, transparent 40%),
                radial-gradient(circle at 70% 60%, rgba(167, 139, 250, 0.06) 0%, transparent 40%);
            position: absolute;
            inset: 0;
            pointer-events: none;
        }
        @media (max-width: 1024px) {
            .nav-desktop {
                display: none !important;
            }
            .mobile-menu-btn {
                display: inline-flex;
            }
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-pad {
                padding-top: 56px;
                padding-bottom: 56px;
            }
        }
        @media (max-width: 768px) {
            body {
                font-size: 15px;
            }
            .logo-text {
                font-size: 19px;
            }
            .stat-num {
                font-size: 20px;
            }
            .section-pad {
                padding-top: 44px;
                padding-bottom: 44px;
            }
            .btn-primary, .btn-secondary {
                font-size: 14px;
                padding: 12px 24px;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding-left: 12px;
                padding-right: 12px;
            }
            .logo-text {
                font-size: 17px;
            }
            .stat-num {
                font-size: 18px;
            }
            .section-pad {
                padding-top: 36px;
                padding-bottom: 36px;
            }
            .team-logo-placeholder {
                width: 48px;
                height: 48px;
                font-size: 17px;
                border-radius: 12px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0F1A2E;
            --bg-card: rgba(15, 23, 42, 0.72);
            --bg-card-solid: #111C31;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-low: rgba(148, 163, 184, 0.18);
            --border-hover: rgba(148, 163, 184, 0.32);
            --cyan: #22D3EE;
            --violet: #A78BFA;
            --amber: #F59E0B;
            --emerald: #10B981;
            --red: #EF4444;
            --gradient-brand: linear-gradient(135deg, #22D3EE 0%, #A78BFA 100%);
            --gradient-brand-reverse: linear-gradient(135deg, #A78BFA 0%, #22D3EE 100%);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 18px 42px rgba(0, 0, 0, 0.28), 0 0 0 1px rgba(34, 211, 238, 0.12);
            --shadow-glow-cyan: 0 0 24px rgba(34, 211, 238, 0.28);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --radius-2xl: 28px;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover {
            color: var(--cyan);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            color: inherit;
            transition: var(--transition-base);
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section-pad {
            padding-top: 80px;
            padding-bottom: 80px;
        }
        .section-pad-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .text-gradient {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-gradient-brand {
            background: var(--gradient-brand);
        }
        .border-gradient-top {
            border-top: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent) 1;
        }
        .card-dark {
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: var(--transition-base);
        }
        .card-dark:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .badge-gradient {
            background: var(--gradient-brand);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: #0B1220;
            display: inline-block;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .badge-outline {
            border: 1px solid rgba(34, 211, 238, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            color: var(--cyan);
            display: inline-block;
            white-space: nowrap;
            background: rgba(34, 211, 238, 0.06);
        }
        .badge-amber {
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid rgba(245, 158, 11, 0.4);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--amber);
            display: inline-block;
            white-space: nowrap;
        }
        .badge-emerald {
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--emerald);
            display: inline-block;
            white-space: nowrap;
        }
        .badge-red {
            background: rgba(239, 68, 68, 0.12);
            border: 1px solid rgba(239, 68, 68, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--red);
            display: inline-block;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--gradient-brand);
            color: #0B1220;
            font-weight: 700;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: var(--transition-base);
            box-shadow: 0 8px 22px rgba(34, 211, 238, 0.22);
        }
        .btn-primary:hover {
            transform: translateY(-1px);
            box-shadow: 0 12px 30px rgba(34, 211, 238, 0.32);
            background: linear-gradient(135deg, #4ddeef 0%, #b7a0fc 100%);
            color: #0B1220;
        }
        .btn-primary:focus-visible {
            outline: 3px solid var(--cyan);
            outline-offset: 2px;
        }
        .btn-primary:active {
            transform: translateY(0) scale(0.98);
            filter: brightness(0.92);
        }
        .btn-secondary {
            border: 1px solid var(--border-low);
            color: var(--text-primary);
            background: rgba(15, 23, 42, 0.7);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: var(--transition-base);
        }
        .btn-secondary:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            transform: translateY(-1px);
            box-shadow: 0 8px 22px rgba(34, 211, 238, 0.12);
        }
        .btn-secondary:focus-visible {
            outline: 3px solid rgba(34, 211, 238, 0.5);
            outline-offset: 2px;
        }
        .btn-secondary:active {
            transform: translateY(0) scale(0.98);
        }
        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 4px;
            position: relative;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--text-primary);
        }
        .nav-link.active {
            color: var(--cyan);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gradient-brand);
            border-radius: 2px;
        }
        .nav-link:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
            border-radius: 4px;
        }
        .logo-text {
            font-weight: 800;
            font-size: 20px;
            letter-spacing: 0.02em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .logo-text:hover {
            filter: brightness(1.15);
            transform: translateY(-1px);
        }
        .logo-text:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 4px;
            border-radius: 4px;
        }
        .header-sticky {
            position: sticky;
            top: 0;
            z-index: 60;
            background: rgba(11, 18, 32, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-low);
        }
        .nav-desktop {
            display: flex;
        }
        .mobile-menu-btn {
            display: none;
        }
        .mobile-menu-panel {
            display: none;
        }
        .divider-gradient {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.5), rgba(167, 139, 250, 0.5), transparent);
        }
        .rank-table {
            width: 100%;
            border-collapse: collapse;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
        }
        .rank-table thead {
            background: rgba(15, 23, 42, 0.95);
            border-bottom: 2px solid rgba(34, 211, 238, 0.25);
        }
        .rank-table th {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--text-secondary);
            font-weight: 600;
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid var(--border-low);
            white-space: nowrap;
        }
        .rank-table td {
            padding: 14px 18px;
            font-size: 14px;
            border-bottom: 1px solid rgba(148, 163, 184, 0.08);
            color: var(--text-primary);
            vertical-align: middle;
            white-space: nowrap;
            transition: background 0.18s ease;
        }
        .rank-table tbody tr {
            transition: background 0.2s ease;
        }
        .rank-table tbody tr:hover {
            background: rgba(34, 211, 238, 0.06);
        }
        .rank-table tbody tr:last-child td {
            border-bottom: none;
        }
        .rank-number {
            font-weight: 800;
            font-size: 16px;
            font-style: italic;
            color: var(--cyan);
            min-width: 36px;
            display: inline-block;
        }
        .rank-number.rank-top {
            font-size: 18px;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .data-badge-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            padding: 4px 10px;
            border-radius: 10px;
            font-weight: 700;
            font-size: 14px;
            background: rgba(34, 211, 238, 0.12);
            border: 1px solid rgba(34, 211, 238, 0.3);
            color: var(--cyan);
            font-variant-numeric: tabular-nums;
        }
        .data-badge-num.amber {
            background: rgba(245, 158, 11, 0.15);
            border-color: rgba(245, 158, 11, 0.4);
            color: var(--amber);
        }
        .data-badge-num.emerald {
            background: rgba(16, 185, 129, 0.12);
            border-color: rgba(16, 185, 129, 0.35);
            color: var(--emerald);
        }
        .win-rate-bar {
            height: 6px;
            border-radius: 3px;
            background: rgba(148, 163, 184, 0.15);
            overflow: hidden;
            min-width: 80px;
        }
        .win-rate-fill {
            height: 100%;
            border-radius: 3px;
            background: var(--gradient-brand);
        }
        .faq-item {
            border: 1px solid var(--border-low);
            border-radius: var(--radius-md);
            background: var(--bg-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding: 16px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--text-primary);
            text-align: left;
            width: 100%;
            transition: var(--transition-base);
        }
        .faq-question:hover {
            color: var(--cyan);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: -2px;
            border-radius: var(--radius-md);
        }
        .faq-question i {
            font-size: 14px;
            color: var(--text-secondary);
            transition: transform 0.25s ease;
            flex-shrink: 0;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            padding: 0 20px;
            transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.75;
        }
        .faq-answer-inner {
            padding-bottom: 16px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--cyan);
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 16px;
        }
        @media (max-width: 1024px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-pad {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .nav-desktop {
                gap: 12px !important;
            }
            .nav-link {
                font-size: 13px;
            }
            .logo-text {
                font-size: 18px;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none !important;
            }
            .mobile-menu-btn {
                display: flex;
                align-items: center;
                justify-content: center;
                width: 40px;
                height: 40px;
                border-radius: 10px;
                border: 1px solid var(--border-low);
                background: rgba(15, 23, 42, 0.7);
                color: var(--text-primary);
                transition: var(--transition-base);
                margin-left: auto;
            }
            .mobile-menu-btn:hover {
                border-color: var(--cyan);
                color: var(--cyan);
            }
            .mobile-menu-btn:focus-visible {
                outline: 2px solid var(--cyan);
                outline-offset: 2px;
            }
            .mobile-menu-panel {
                display: block;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: rgba(11, 18, 32, 0.97);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border-bottom: 1px solid var(--border-low);
                padding: 12px 20px 20px;
                z-index: 50;
                max-height: 0;
                overflow: hidden;
                transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
                pointer-events: none;
            }
            .mobile-menu-panel.open {
                max-height: 400px;
                padding: 12px 20px 20px;
                pointer-events: auto;
            }
            .mobile-menu-panel a {
                display: block;
                padding: 10px 0;
                font-size: 15px;
                border-bottom: 1px solid rgba(148, 163, 184, 0.08);
                color: var(--text-secondary);
            }
            .mobile-menu-panel a:hover {
                color: var(--cyan);
            }
            .mobile-menu-panel a.active {
                color: var(--cyan);
                font-weight: 600;
            }
            .header-sticky .flex.items-center.justify-between {
                gap: 12px;
            }
            .rank-table th,
            .rank-table td {
                padding: 10px 12px;
                font-size: 13px;
            }
            .section-pad {
                padding-top: 44px;
                padding-bottom: 44px;
            }
        }
        @media (max-width: 520px) {
            .logo-text {
                font-size: 17px;
            }
            h1 {
                font-size: 26px !important;
            }
            h2 {
                font-size: 22px !important;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 22px;
                font-size: 14px;
                width: 100%;
                justify-content: center;
            }
            .data-badge-num {
                min-width: 36px;
                font-size: 12px;
                padding: 3px 8px;
            }
            .rank-table {
                border-radius: var(--radius-md);
            }
        }
        @media (max-width: 420px) {
            .container-custom {
                padding-left: 12px;
                padding-right: 12px;
            }
            .rank-table th,
            .rank-table td {
                padding: 8px 10px;
                font-size: 12px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0F1A2E;
            --bg-card: rgba(15, 23, 42, 0.72);
            --bg-card-solid: #111C31;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-low: rgba(148, 163, 184, 0.18);
            --border-hover: rgba(148, 163, 184, 0.32);
            --cyan: #22D3EE;
            --violet: #A78BFA;
            --amber: #F59E0B;
            --emerald: #10B981;
            --red: #EF4444;
            --gradient-brand: linear-gradient(135deg, #22D3EE 0%, #A78BFA 100%);
            --gradient-brand-reverse: linear-gradient(135deg, #A78BFA 0%, #22D3EE 100%);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 18px 42px rgba(0, 0, 0, 0.28), 0 0 0 1px rgba(34, 211, 238, 0.12);
            --shadow-glow-cyan: 0 0 24px rgba(34, 211, 238, 0.28);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --radius-2xl: 28px;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover {
            color: var(--cyan);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            color: inherit;
            transition: var(--transition-base);
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section-pad {
            padding-top: 80px;
            padding-bottom: 80px;
        }
        .section-pad-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .text-gradient {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-gradient-brand {
            background: var(--gradient-brand);
        }
        .border-gradient-top {
            border-top: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent) 1;
        }
        .card-dark {
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: var(--transition-base);
        }
        .card-dark:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .badge-gradient {
            background: var(--gradient-brand);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: #0B1220;
            display: inline-block;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .badge-outline {
            border: 1px solid rgba(34, 211, 238, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            color: var(--cyan);
            display: inline-block;
            white-space: nowrap;
            background: rgba(34, 211, 238, 0.06);
        }
        .badge-amber {
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid rgba(245, 158, 11, 0.4);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--amber);
            display: inline-block;
            white-space: nowrap;
        }
        .badge-emerald {
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--emerald);
            display: inline-block;
            white-space: nowrap;
        }
        .badge-red {
            background: rgba(239, 68, 68, 0.12);
            border: 1px solid rgba(239, 68, 68, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--red);
            display: inline-block;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--gradient-brand);
            color: #0B1220;
            font-weight: 700;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            transition: var(--transition-base);
            box-shadow: 0 4px 16px rgba(34, 211, 238, 0.25);
        }
        .btn-primary:hover {
            background: var(--gradient-brand-reverse);
            box-shadow: 0 6px 24px rgba(167, 139, 250, 0.35);
            transform: translateY(-1px);
            color: #0B1220;
        }
        .btn-primary:focus-visible {
            outline: 3px solid rgba(34, 211, 238, 0.6);
            outline-offset: 2px;
        }
        .btn-primary:active {
            transform: translateY(1px);
            filter: brightness(0.92);
        }
        .btn-secondary {
            background: transparent;
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 13px 30px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid var(--border-hover);
            transition: var(--transition-base);
        }
        .btn-secondary:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.06);
        }
        .btn-secondary:focus-visible {
            outline: 3px solid rgba(34, 211, 238, 0.4);
            outline-offset: 2px;
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 10px;
            border-radius: 8px;
            position: relative;
            transition: var(--transition-base);
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--text-primary);
            background: rgba(148, 163, 184, 0.08);
        }
        .nav-link.active {
            color: var(--cyan);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 10px;
            right: 10px;
            bottom: -2px;
            height: 2px;
            background: var(--gradient-brand);
            border-radius: 2px;
        }
        .nav-link:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }
        .header-sticky {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(11, 18, 32, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-low);
        }
        .logo-text {
            font-size: 21px;
            font-weight: 800;
            letter-spacing: 0.01em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }
        .mobile-menu-btn {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            border: 1px solid var(--border-low);
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            transition: var(--transition-base);
        }
        .mobile-menu-btn:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }
        .mobile-menu-btn:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }
        .mobile-menu-panel {
            display: none;
            background: rgba(11, 18, 32, 0.98);
            border-bottom: 1px solid var(--border-low);
            padding: 12px 20px 20px;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }
        .mobile-menu-panel.open {
            display: block;
        }
        .mobile-menu-panel a {
            display: block;
            padding: 12px 8px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(148, 163, 184, 0.08);
            transition: var(--transition-base);
        }
        .mobile-menu-panel a:hover {
            color: var(--cyan);
            padding-left: 16px;
        }
        .mobile-menu-panel a.active {
            color: var(--cyan);
        }
        .divider-gradient {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent);
            opacity: 0.4;
        }
        .news-card {
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        .news-card-img {
            border-radius: var(--radius-md) var(--radius-md) 0 0;
            overflow: hidden;
            aspect-ratio: 16/9;
            position: relative;
        }
        .news-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .news-card:hover .news-card-img img {
            transform: scale(1.06);
        }
        .news-card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(11, 18, 32, 0.45) 100%);
            pointer-events: none;
        }
        .news-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 8px;
            transition: var(--transition-base);
        }
        .news-card:hover .news-card-title {
            color: var(--cyan);
        }
        .news-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 12px;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid rgba(148, 163, 184, 0.12);
        }
        .faq-item {
            border: 1px solid var(--border-low);
            border-radius: var(--radius-md);
            background: var(--bg-card);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-item summary {
            padding: 18px 22px;
            font-weight: 600;
            font-size: 16px;
            color: var(--text-primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: var(--transition-base);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            font-size: 14px;
            color: var(--cyan);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
        }
        .faq-item summary:hover {
            color: var(--cyan);
        }
        .faq-item .faq-answer {
            padding: 0 22px 20px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .topic-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            border: 1px solid var(--border-low);
            aspect-ratio: 4/3;
            transition: var(--transition-base);
        }
        .topic-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .topic-card:hover img {
            transform: scale(1.05);
        }
        .topic-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
        }
        .topic-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 18, 32, 0.1) 30%, rgba(11, 18, 32, 0.85) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 20px;
        }
        .topic-overlay h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .topic-overlay p {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .stat-number {
            font-size: 32px;
            font-weight: 800;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .input-dark {
            background: rgba(15, 23, 42, 0.8);
            border: 1px solid var(--border-low);
            border-radius: 12px;
            padding: 13px 18px;
            font-size: 15px;
            color: var(--text-primary);
            width: 100%;
            transition: var(--transition-base);
        }
        .input-dark:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.2);
            outline: none;
        }
        .input-dark::placeholder {
            color: var(--text-muted);
        }
        .news-list-card {
            display: flex;
            gap: 16px;
            padding: 16px;
            border-radius: var(--radius-md);
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            transition: var(--transition-base);
            cursor: pointer;
        }
        .news-list-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card);
            transform: translateY(-2px);
        }
        .news-list-thumb {
            width: 120px;
            height: 80px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .news-list-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-list-info {
            flex: 1;
            min-width: 0;
        }
        .news-list-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 6px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-list-card:hover .news-list-title {
            color: var(--cyan);
        }
        .news-list-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        @media (max-width: 1024px) {
            .nav-desktop-group {
                gap: 10px;
            }
            .nav-link {
                font-size: 13px;
                padding: 5px 7px;
            }
        }
        @media (max-width: 768px) {
            .nav-desktop {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .section-pad {
                padding-top: 48px;
                padding-bottom: 48px;
            }
            .section-pad-sm {
                padding-top: 32px;
                padding-bottom: 32px;
            }
            .stat-number {
                font-size: 26px;
            }
            .news-list-card {
                flex-direction: column;
                gap: 12px;
            }
            .news-list-thumb {
                width: 100%;
                height: 160px;
            }
        }
        @media (max-width: 520px) {
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }
            .logo-text {
                font-size: 18px;
            }
            .btn-primary,
            .btn-secondary {
                font-size: 14px;
                padding: 11px 22px;
            }
            .news-card-title {
                font-size: 16px;
            }
            .faq-item summary {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-item .faq-answer {
                padding: 0 16px 16px;
                font-size: 13px;
            }
            .header-sticky .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }
        }

/* roulang page: category6 */
:root {
            --bg-primary: #0B1220;
            --bg-secondary: #0F1A2E;
            --bg-card: rgba(15, 23, 42, 0.72);
            --bg-card-solid: #111C31;
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --text-muted: #64748B;
            --border-low: rgba(148, 163, 184, 0.18);
            --border-hover: rgba(148, 163, 184, 0.32);
            --cyan: #22D3EE;
            --violet: #A78BFA;
            --amber: #F59E0B;
            --emerald: #10B981;
            --red: #EF4444;
            --gradient-brand: linear-gradient(135deg, #22D3EE 0%, #A78BFA 100%);
            --gradient-brand-reverse: linear-gradient(135deg, #A78BFA 0%, #22D3EE 100%);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.18);
            --shadow-card-hover: 0 18px 42px rgba(0, 0, 0, 0.28), 0 0 0 1px rgba(34, 211, 238, 0.12);
            --shadow-glow-cyan: 0 0 24px rgba(34, 211, 238, 0.28);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 20px;
            --radius-xl: 24px;
            --radius-2xl: 28px;
            --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            line-height: 1.7;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition-base);
        }
        a:hover {
            color: var(--cyan);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
            color: inherit;
            transition: var(--transition-base);
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        .section-pad {
            padding-top: 80px;
            padding-bottom: 80px;
        }
        .section-pad-sm {
            padding-top: 48px;
            padding-bottom: 48px;
        }
        .text-gradient {
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-gradient-brand {
            background: var(--gradient-brand);
        }
        .border-gradient-top {
            border-top: 2px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent) 1;
        }
        .card-dark {
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: var(--transition-base);
        }
        .card-dark:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .badge-gradient {
            background: var(--gradient-brand);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: #0B1220;
            display: inline-block;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .badge-outline {
            border: 1px solid rgba(34, 211, 238, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 500;
            color: var(--cyan);
            display: inline-block;
            white-space: nowrap;
            background: rgba(34, 211, 238, 0.06);
        }
        .badge-amber {
            background: rgba(245, 158, 11, 0.15);
            border: 1px solid rgba(245, 158, 11, 0.4);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--amber);
            display: inline-block;
            white-space: nowrap;
        }
        .badge-emerald {
            background: rgba(16, 185, 129, 0.12);
            border: 1px solid rgba(16, 185, 129, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--emerald);
            display: inline-block;
            white-space: nowrap;
        }
        .badge-red {
            background: rgba(239, 68, 68, 0.12);
            border: 1px solid rgba(239, 68, 68, 0.35);
            border-radius: 9999px;
            padding: 4px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--red);
            display: inline-block;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--gradient-brand);
            color: #0B1220;
            font-weight: 700;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            letter-spacing: 0.01em;
            box-shadow: 0 8px 26px rgba(34, 211, 238, 0.22);
            transition: var(--transition-base);
            border: none;
        }
        .btn-primary:hover {
            filter: brightness(1.08);
            box-shadow: 0 10px 34px rgba(34, 211, 238, 0.32);
            transform: translateY(-1px);
            color: #0B1220;
        }
        .btn-primary:active {
            filter: brightness(0.94);
            transform: translateY(0);
            box-shadow: 0 4px 16px rgba(34, 211, 238, 0.18);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }
        .btn-secondary {
            background: rgba(15, 23, 42, 0.6);
            color: var(--text-primary);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid var(--border-hover);
            transition: var(--transition-base);
        }
        .btn-secondary:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.06);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .btn-secondary:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
        }
        .divider-gradient {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--cyan), var(--violet), transparent);
            opacity: 0.5;
        }
        .divider-gradient-soft {
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.25), rgba(167, 139, 250, 0.25), transparent);
        }
        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            letter-spacing: 0.02em;
            transition: var(--transition-base);
        }
        .nav-link:hover {
            color: var(--text-primary);
        }
        .nav-link.active {
            color: var(--cyan);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--gradient-brand);
            border-radius: 9999px;
        }
        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 0.02em;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
            transition: var(--transition-base);
        }
        .logo-text:hover {
            filter: brightness(1.1);
        }
        .header-sticky {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(11, 18, 32, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-low);
        }
        .nav-desktop {
            display: flex;
            align-items: center;
        }
        .mobile-menu-btn {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(15, 23, 42, 0.7);
            border: 1px solid var(--border-low);
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            transition: var(--transition-base);
            flex-shrink: 0;
        }
        .mobile-menu-btn:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }
        .mobile-menu-btn:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            z-index: 100;
            background: rgba(11, 18, 32, 0.97);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 24px 20px;
            flex-direction: column;
            transform: translateY(-100%);
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .mobile-drawer.open {
            transform: translateY(0);
        }
        .mobile-drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }
        .mobile-drawer-close {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(15, 23, 42, 0.7);
            border: 1px solid var(--border-low);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-primary);
            transition: var(--transition-base);
        }
        .mobile-drawer-close:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }
        .mobile-drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-drawer-nav a {
            font-size: 16px;
            font-weight: 500;
            padding: 14px 16px;
            border-radius: 12px;
            color: var(--text-secondary);
            background: rgba(15, 23, 42, 0.5);
            border: 1px solid transparent;
            transition: var(--transition-base);
        }
        .mobile-drawer-nav a:hover {
            color: var(--text-primary);
            border-color: var(--border-low);
        }
        .mobile-drawer-nav a.active {
            color: var(--cyan);
            border-color: rgba(34, 211, 238, 0.3);
            background: rgba(34, 211, 238, 0.06);
            font-weight: 600;
        }
        .guide-card {
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-base);
            box-shadow: var(--shadow-card);
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .guide-card-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }
        .guide-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .guide-card:hover .guide-card-image img {
            transform: scale(1.04);
        }
        .guide-card-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 48px;
            background: linear-gradient(to top, rgba(11, 18, 32, 0.9), transparent);
        }
        .guide-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .guide-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .guide-card-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .guide-card-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-low);
            padding-top: 14px;
        }
        .faq-item {
            border: 1px solid var(--border-low);
            border-radius: var(--radius-md);
            background: var(--bg-card);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-hover);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            cursor: pointer;
            background: none;
            border: none;
            transition: var(--transition-base);
            gap: 12px;
        }
        .faq-question:hover {
            color: var(--cyan);
        }
        .faq-question:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: -2px;
            border-radius: var(--radius-md);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            background: rgba(34, 211, 238, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan);
            transition: var(--transition-base);
            font-size: 12px;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
            background: rgba(34, 211, 238, 0.16);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }
        .topic-card {
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: var(--transition-base);
            box-shadow: var(--shadow-card);
            cursor: pointer;
        }
        .topic-card:hover {
            border-color: var(--border-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .topic-card-img {
            aspect-ratio: 3/2;
            overflow: hidden;
        }
        .topic-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }
        .topic-card:hover .topic-card-img img {
            transform: scale(1.05);
        }
        .stat-item {
            text-align: center;
            padding: 18px 12px;
            background: rgba(15, 23, 42, 0.55);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-low);
        }
        .stat-number {
            font-size: 28px;
            font-weight: 800;
            background: var(--gradient-brand);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.3;
            letter-spacing: 0.01em;
        }
        .stat-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
        }
        .glossary-item {
            background: var(--bg-card);
            border: 1px solid var(--border-low);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            transition: var(--transition-base);
        }
        .glossary-item:hover {
            border-color: var(--border-hover);
            background: rgba(15, 23, 42, 0.85);
        }
        .glossary-term {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .glossary-term .term-icon {
            width: 24px;
            height: 24px;
            border-radius: 6px;
            background: rgba(34, 211, 238, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--cyan);
            font-size: 11px;
            flex-shrink: 0;
        }
        .glossary-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.75;
        }
        .link-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 9999px;
            border: 1px solid var(--border-low);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(15, 23, 42, 0.5);
            transition: var(--transition-base);
        }
        .link-chip:hover {
            border-color: var(--cyan);
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.06);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 12px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
            transition: var(--transition-base);
        }
        .breadcrumb a:hover {
            color: var(--cyan);
        }
        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 10px;
        }
        .breadcrumb .current {
            color: var(--cyan);
            font-weight: 500;
        }
        @media (max-width: 1024px) {
            .nav-desktop-group {
                display: none !important;
            }
            .mobile-menu-btn {
                display: flex;
            }
            .mobile-drawer {
                display: flex;
            }
            .header-sticky .flex.items-center.justify-between {
                justify-content: space-between;
            }
            .nav-desktop {
                display: none;
            }
            .logo-text {
                font-size: 19px;
            }
            .section-pad {
                padding-top: 56px;
                padding-bottom: 56px;
            }
            .section-pad-sm {
                padding-top: 36px;
                padding-bottom: 36px;
            }
        }
        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .guide-card-title {
                font-size: 16px;
            }
            .guide-card-desc {
                font-size: 13px;
            }
            .stat-number {
                font-size: 24px;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 24px;
                font-size: 14px;
            }
            .section-pad {
                padding-top: 44px;
                padding-bottom: 44px;
            }
            .section-pad-sm {
                padding-top: 28px;
                padding-bottom: 28px;
            }
            .glossary-item {
                padding: 16px 18px;
            }
            .glossary-term {
                font-size: 15px;
            }
        }
        @media (max-width: 520px) {
            .logo-text {
                font-size: 17px;
            }
            .stat-item {
                padding: 14px 8px;
            }
            .stat-number {
                font-size: 20px;
            }
            .guide-card-body {
                padding: 16px 16px 18px;
            }
            .faq-question {
                font-size: 14px;
                padding: 14px 16px;
            }
            .faq-answer p {
                font-size: 13px;
            }
            .breadcrumb {
                font-size: 12px;
                flex-wrap: wrap;
            }
        }