/* roulang page: index */
:root {
            --bg: #0A0E14;
            --bg-alt: #0D141B;
            --card: rgba(16, 24, 32, 0.92);
            --line: rgba(0, 230, 118, 0.16);
            --primary: #00E676;
            --primary-2: #A3FF12;
            --hot: #FF4D2D;
            --text: #E8EEF2;
            --muted: #93A1AD;
            --radius: 16px;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 24px rgba(0, 230, 118, 0.25);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'Roboto Mono', 'SFMono-Regular', 'Consolas', monospace;
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-sans);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(8, 12, 16, 0.9);
            border-bottom: 1px solid rgba(0, 230, 118, 0.25);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo .logo-primary {
            color: var(--primary);
            text-shadow: 0 0 18px rgba(0, 230, 118, 0.5);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .desktop-nav a {
            padding: 6px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--muted);
            border-radius: 6px;
            position: relative;
            transition: color .2s, background .2s;
        }
        .desktop-nav a:hover {
            color: var(--text);
            background: rgba(0, 230, 118, 0.07);
        }
        .desktop-nav a.active {
            color: var(--primary);
            text-shadow: 0 0 12px rgba(0, 230, 118, 0.6);
        }
        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -17px;
            left: 50%;
            transform: translateX(-50%);
            width: 28px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.7);
        }
        .nav-cta {
            background: var(--primary);
            color: #0A0E14 !important;
            padding: 8px 18px !important;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.85rem !important;
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.35);
            transition: box-shadow .25s, transform .25s;
        }
        .nav-cta:hover {
            box-shadow: 0 0 24px rgba(0, 230, 118, 0.55);
            transform: translateY(-1px);
            background: #1BFF8A !important;
            color: #0A0E14 !important;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px;
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(8, 12, 16, 0.98);
            z-index: 49;
            padding: 20px 24px;
            flex-direction: column;
            gap: 4px;
            border-top: 1px solid var(--line);
            overflow-y: auto;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            padding: 14px 16px;
            font-size: 1rem;
            color: var(--muted);
            border-radius: 10px;
            border-left: 3px solid transparent;
            transition: all .2s;
        }
        .mobile-drawer a:hover {
            color: var(--text);
            background: rgba(0, 230, 118, 0.06);
        }
        .mobile-drawer a.active {
            color: var(--primary);
            background: rgba(0, 230, 118, 0.08);
            border-left: 3px solid var(--primary);
        }
        /* Hero */
        .hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/a06d2003eaba87a6.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 0;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 14, 20, 0.88) 0%, rgba(10, 14, 20, 0.65) 40%, rgba(10, 14, 20, 0.45) 70%, rgba(10, 14, 20, 0.7) 100%);
            z-index: 1;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(0, 230, 118, 0.12) 0%, transparent 60%);
            z-index: 1;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 230, 118, 0.12);
            border: 1px solid rgba(0, 230, 118, 0.35);
            color: var(--primary);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 20px;
            width: fit-content;
        }
        .hero-badge i {
            font-size: 0.7rem;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 20px;
            letter-spacing: -0.5px;
        }
        .hero h1 .highlight {
            color: var(--primary);
            text-shadow: 0 0 28px rgba(0, 230, 118, 0.5);
        }
        .hero-sub {
            font-size: 1.1rem;
            color: var(--muted);
            max-width: 520px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .hero-btns {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #0A0E14;
            padding: 13px 28px;
            border-radius: 10px;
            font-weight: 700;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all .25s;
            box-shadow: 0 0 20px rgba(0, 230, 118, 0.35);
        }
        .btn-primary:hover {
            box-shadow: 0 0 32px rgba(0, 230, 118, 0.55);
            transform: translateY(-2px);
            background: #1BFF8A;
            color: #0A0E14;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            padding: 13px 28px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid rgba(0, 230, 118, 0.5);
            cursor: pointer;
            transition: all .25s;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.35);
            background: rgba(0, 230, 118, 0.08);
        }
        .hero-data-float {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow);
        }
        .hero-data-float .match-row {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 0;
            border-bottom: 1px solid rgba(0, 230, 118, 0.1);
        }
        .hero-data-float .match-row:last-child {
            border-bottom: none;
        }
        .hero-data-float .team-name {
            font-weight: 600;
            font-size: 0.9rem;
        }
        .hero-data-float .score {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--primary);
            text-shadow: 0 0 12px rgba(0, 230, 118, 0.4);
        }
        .hero-data-float .match-time {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            color: var(--muted);
        }
        .hero-data-float .float-title {
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 12px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        /* Section common */
        section {
            padding: 80px 0;
        }
        section.alt-bg {
            background: var(--bg-alt);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 1.5px;
            margin-bottom: 12px;
            text-transform: uppercase;
        }
        .section-title {
            font-size: 2rem;
            font-weight: 800;
            margin: 0 0 16px;
            line-height: 1.3;
            letter-spacing: -0.3px;
        }
        .section-desc {
            color: var(--muted);
            font-size: 1rem;
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 40px;
        }
        .section-desc.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        /* Cards */
        .card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 24px;
            transition: border-color .25s, box-shadow .25s, transform .25s;
            position: relative;
            overflow: hidden;
        }
        .card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            object-fit: cover;
            border-radius: 10px;
            margin-bottom: 16px;
        }
        .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .card-desc {
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin: 0;
        }
        .chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(0, 230, 118, 0.08);
            border: 1px solid rgba(0, 230, 118, 0.3);
            color: var(--primary);
            padding: 3px 10px;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 500;
            white-space: nowrap;
        }
        .chip.hot {
            background: rgba(255, 77, 45, 0.1);
            border-color: rgba(255, 77, 45, 0.4);
            color: var(--hot);
        }
        .chip.mono {
            font-family: var(--font-mono);
            font-size: 0.7rem;
        }
        .stat-num {
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 2.2rem;
            color: var(--primary);
            text-shadow: 0 0 16px rgba(0, 230, 118, 0.3);
            letter-spacing: -1px;
        }
        .stat-label {
            color: var(--muted);
            font-size: 0.85rem;
            margin-top: 4px;
        }
        /* Grid utilities */
        .grid-12 {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }
        .col-span-3 {
            grid-column: span 3;
        }
        .col-span-4 {
            grid-column: span 4;
        }
        .col-span-6 {
            grid-column: span 6;
        }
        .col-span-8 {
            grid-column: span 8;
        }
        .col-span-12 {
            grid-column: span 12;
        }
        /* Service matrix */
        .service-grid {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 24px;
        }
        .service-big-a {
            grid-column: span 5;
            grid-row: span 2;
        }
        .service-big-b {
            grid-column: span 4;
            grid-row: span 2;
        }
        .service-data {
            grid-column: span 3;
            grid-row: span 2;
        }
        .service-small {
            grid-column: span 4;
        }
        .service-base {
            grid-column: span 4;
        }
        /* Process steps */
        .steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step {
            text-align: center;
            padding: 32px 20px;
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            position: relative;
            transition: all .25s;
        }
        .step:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .step-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(0, 230, 118, 0.12);
            border: 2px solid var(--primary);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-mono);
            font-weight: 700;
            font-size: 1.1rem;
            margin: 0 auto 16px;
        }
        .step h3 {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 8px;
        }
        .step p {
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.7;
            margin: 0;
        }
        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 22px 24px;
            border-left: 2px solid var(--primary);
            cursor: pointer;
            transition: all .25s;
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: 0 0 12px rgba(0, 230, 118, 0.12);
        }
        .faq-item summary {
            font-weight: 700;
            font-size: 1rem;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary .faq-icon {
            transition: transform .25s;
            color: var(--primary);
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-answer {
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.8;
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid rgba(0, 230, 118, 0.12);
        }
        /* Footer */
        .site-footer {
            background: #05080C;
            border-top: 2px solid var(--primary);
            padding: 56px 0 32px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .site-footer .footer-desc {
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.8;
            margin-top: 12px;
            max-width: 340px;
        }
        .site-footer h4 {
            font-size: 0.9rem;
            font-weight: 700;
            margin: 0 0 16px;
            color: var(--text);
            letter-spacing: 0.5px;
        }
        .site-footer a {
            display: block;
            color: var(--muted);
            font-size: 0.85rem;
            padding: 4px 0;
            transition: color .2s;
        }
        .site-footer a:hover {
            color: var(--primary);
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(0, 230, 118, 0.1);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            color: var(--muted);
            font-size: 0.8rem;
        }
        /* Form */
        .form-input {
            background: rgba(10, 14, 20, 0.8);
            border: 1px solid rgba(0, 230, 118, 0.25);
            border-radius: 10px;
            padding: 14px 18px;
            color: var(--text);
            font-size: 0.95rem;
            width: 100%;
            transition: border-color .25s, box-shadow .25s;
        }
        .form-input::placeholder {
            color: rgba(147, 161, 173, 0.55);
        }
        .form-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.2);
        }
        /* Hot tags */
        .hot-tag {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text);
            background: var(--card);
            border: 1px solid var(--line);
            cursor: pointer;
            transition: all .25s;
            white-space: nowrap;
        }
        .hot-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            box-shadow: 0 0 12px rgba(0, 230, 118, 0.2);
            transform: translateY(-2px);
        }
        .hot-tag .tag-count {
            font-family: var(--font-mono);
            font-size: 0.7rem;
            color: var(--muted);
            margin-left: 6px;
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .hero .container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .service-big-a, .service-big-b, .service-data {
                grid-column: span 6;
            }
            .service-small, .service-base {
                grid-column: span 6;
            }
            .steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .hero {
                min-height: auto;
                padding: 56px 0;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero-sub {
                font-size: 0.95rem;
            }
            section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .col-span-3, .col-span-4, .col-span-6, .col-span-8, .col-span-12 {
                grid-column: span 12;
            }
            .service-big-a, .service-big-b, .service-data, .service-small, .service-base {
                grid-column: span 12;
            }
            .steps {
                grid-template-columns: 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 1.5rem;
            }
            .hero-btns {
                flex-direction: column;
                align-items: stretch;
            }
            .btn-primary, .btn-secondary {
                justify-content: center;
            }
            .stat-num {
                font-size: 1.6rem;
            }
        }
        /* Data bar */
        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .data-item {
            text-align: center;
            padding: 24px 16px;
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: 12px;
        }
        .data-item .stat-num {
            font-size: 1.8rem;
        }
        @media (max-width: 768px) {
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .data-grid {
                grid-template-columns: 1fr;
            }
        }
        /* Compliance bar */
        .compliance-bar {
            background: rgba(255, 77, 45, 0.06);
            border: 1px solid rgba(255, 77, 45, 0.25);
            border-radius: 12px;
            padding: 20px 24px;
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }
        .compliance-bar i {
            color: var(--hot);
            font-size: 1.2rem;
            margin-top: 2px;
        }
        .compliance-bar p {
            margin: 0;
            color: var(--muted);
            font-size: 0.9rem;
            line-height: 1.8;
        }
        /* Category entry */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
        }
        .category-entry {
            text-align: center;
            padding: 28px 16px;
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: 14px;
            transition: all .25s;
        }
        .category-entry:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
            transform: translateY(-3px);
        }
        .category-entry i {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 12px;
            display: block;
        }
        .category-entry .cat-name {
            font-weight: 700;
            font-size: 0.9rem;
        }
        .category-entry .cat-count {
            font-family: var(--font-mono);
            font-size: 0.7rem;
            color: var(--muted);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .category-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        /* Info list */
        .info-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .info-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: 10px;
            transition: all .25s;
        }
        .info-item:hover {
            border-color: var(--primary);
            transform: translateX(4px);
        }
        .info-item .info-time {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            color: var(--muted);
            white-space: nowrap;
        }
        .info-item .info-title {
            font-weight: 600;
            font-size: 0.95rem;
            flex: 1;
        }
        .info-item .info-tag {
            flex-shrink: 0;
        }

/* roulang page: category1 */
:root {
            --bg: #0A0E14;
            --bg-alt: #0D141B;
            --card: rgba(16, 24, 32, 0.92);
            --line: rgba(0, 230, 118, 0.16);
            --primary: #00E676;
            --primary-2: #A3FF12;
            --hot: #FF4D2D;
            --text: #E8EEF2;
            --muted: #93A1AD;
            --radius: 16px;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 24px rgba(0, 230, 118, 0.25);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'Roboto Mono', 'SFMono-Regular', 'Consolas', monospace;
        }

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

        body {
            margin: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-sans);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

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

        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(8, 12, 16, 0.9);
            border-bottom: 1px solid rgba(0, 230, 118, 0.25);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 64px;
            display: flex;
            align-items: center;
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .logo .logo-primary {
            color: var(--primary);
            text-shadow: 0 0 18px rgba(0, 230, 118, 0.5);
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .desktop-nav a {
            padding: 6px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--muted);
            border-radius: 6px;
            position: relative;
            transition: color .2s, background .2s;
        }

        .desktop-nav a:hover {
            color: var(--text);
            background: rgba(0, 230, 118, 0.07);
        }

        .desktop-nav a.active {
            color: var(--primary);
            text-shadow: 0 0 12px rgba(0, 230, 118, 0.6);
        }

        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -17px;
            left: 50%;
            transform: translateX(-50%);
            width: 28px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.7);
        }

        .nav-cta {
            background: var(--primary);
            color: #0A0E14 !important;
            padding: 8px 18px !important;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.85rem !important;
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.35);
            transition: box-shadow .25s, transform .25s;
        }

        .nav-cta:hover {
            box-shadow: 0 0 24px rgba(0, 230, 118, 0.55);
            transform: translateY(-1px);
            background: #1BFF8A !important;
            color: #0A0E14 !important;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(8, 12, 16, 0.98);
            z-index: 49;
            padding: 20px 24px;
            flex-direction: column;
            gap: 4px;
            border-top: 1px solid var(--line);
            overflow-y: auto;
        }

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

        .mobile-drawer a {
            padding: 14px 16px;
            font-size: 1rem;
            color: var(--muted);
            border-radius: 10px;
            border-left: 3px solid transparent;
            transition: all .2s;
        }

        .mobile-drawer a:hover {
            color: var(--text);
            background: rgba(0, 230, 118, 0.06);
        }

        .mobile-drawer a.active {
            color: var(--primary);
            background: rgba(0, 230, 118, 0.08);
            border-left: 3px solid var(--primary);
        }

        /* Category Hero */
        .category-hero {
            background: linear-gradient(180deg, #0D141B 0%, #0A0E14 100%);
            border-bottom: 1px solid var(--line);
            padding: 48px 0 28px;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -60px;
            width: 380px;
            height: 380px;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--muted);
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

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

        .breadcrumb .sep {
            color: rgba(0, 230, 118, 0.4);
        }

        .category-hero h1 {
            font-size: 2rem;
            font-weight: 800;
            margin: 0 0 10px;
            color: var(--text);
            letter-spacing: 0.5px;
            position: relative;
            z-index: 1;
        }

        .category-hero h1 .accent {
            color: var(--primary);
            text-shadow: 0 0 18px rgba(0, 230, 118, 0.5);
        }

        .category-hero .lead {
            font-size: 0.95rem;
            color: var(--muted);
            max-width: 680px;
            margin: 0;
            position: relative;
            z-index: 1;
        }

        /* Section Base */
        .section {
            padding: 64px 0;
        }

        .section-alt {
            background-color: var(--bg-alt);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .section-title {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text);
        }

        .section-title .accent {
            color: var(--primary);
        }

        .section-subtitle {
            font-size: 0.9rem;
            color: var(--muted);
            margin: 0 0 32px;
            max-width: 560px;
        }

        /* Cards */
        .card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            box-shadow: var(--shadow);
        }

        .card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }

        .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .card-body {
            padding: 20px;
        }

        .card-title {
            font-size: 1.05rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text);
            line-height: 1.4;
        }

        .card-title a {
            transition: color .2s, text-shadow .2s;
        }

        .card-title a:hover {
            color: var(--primary);
            text-shadow: 0 0 14px rgba(0, 230, 118, 0.5);
        }

        .card-text {
            font-size: 0.85rem;
            color: var(--muted);
            margin: 0 0 16px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.75rem;
            color: var(--muted);
            font-family: var(--font-mono);
        }

        /* Match Card */
        .match-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            box-shadow: var(--shadow);
            position: relative;
        }

        .match-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }

        .match-card .card-img {
            height: 160px;
        }

        .match-info {
            padding: 16px 20px 18px;
        }

        .match-teams {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 10px;
        }

        .match-teams .team {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text);
            text-align: center;
            flex: 1;
        }

        .match-teams .vs {
            font-size: 0.8rem;
            color: var(--hot);
            font-family: var(--font-mono);
            font-weight: 700;
            flex-shrink: 0;
            padding: 0 6px;
        }

        .match-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            margin-top: 10px;
        }

        .tag {
            font-size: 0.7rem;
            padding: 4px 10px;
            border-radius: 20px;
            border: 1px solid var(--line);
            color: var(--muted);
            font-weight: 500;
            transition: all .2s;
            white-space: nowrap;
        }

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

        .tag-hot {
            border-color: rgba(255, 77, 45, 0.4);
            color: var(--hot);
        }

        .tag-green {
            border-color: rgba(0, 230, 118, 0.35);
            color: var(--primary);
        }

        /* Feature Card */
        .feature-card {
            background: var(--card);
            border: 1px solid rgba(0, 230, 118, 0.3);
            border-radius: var(--radius);
            overflow: hidden;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            box-shadow: 0 0 32px rgba(0, 230, 118, 0.1);
            position: relative;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }

        .feature-card .card-img {
            height: 280px;
        }

        .feature-card .card-body {
            padding: 24px;
        }

        .feature-card .card-title {
            font-size: 1.25rem;
        }

        /* Filter Toolbar */
        .filter-toolbar {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
            padding: 16px 20px;
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            margin-bottom: 28px;
        }

        .filter-btn {
            padding: 8px 16px;
            font-size: 0.8rem;
            font-weight: 500;
            color: var(--muted);
            background: transparent;
            border: 1px solid var(--line);
            border-radius: 8px;
            cursor: pointer;
            transition: all .25s ease;
            white-space: nowrap;
        }

        .filter-btn:hover {
            color: var(--text);
            border-color: rgba(0, 230, 118, 0.5);
        }

        .filter-btn.active {
            background: var(--primary);
            color: #0A0E14;
            border-color: var(--primary);
            font-weight: 700;
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.35);
        }

        /* Data Panel */
        .data-panel {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 24px;
        }

        .data-panel h3 {
            font-size: 1rem;
            font-weight: 700;
            margin: 0 0 16px;
            color: var(--text);
        }

        .data-panel .data-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 0;
            border-bottom: 1px solid rgba(0, 230, 118, 0.08);
            font-size: 0.85rem;
        }

        .data-panel .data-row:last-child {
            border-bottom: none;
        }

        .data-panel .data-label {
            color: var(--muted);
        }

        .data-panel .data-value {
            color: var(--text);
            font-family: var(--font-mono);
            font-weight: 600;
        }

        .data-panel .data-value.primary {
            color: var(--primary);
        }

        .data-panel .data-value.hot {
            color: var(--hot);
        }

        /* Article Mini List */
        .article-mini {
            display: flex;
            gap: 16px;
            padding: 14px 0;
            border-bottom: 1px solid rgba(0, 230, 118, 0.08);
            transition: all .2s;
        }

        .article-mini:last-child {
            border-bottom: none;
        }

        .article-mini:hover {
            padding-left: 8px;
        }

        .article-mini .mini-title {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 4px;
            line-height: 1.5;
        }

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

        .article-mini .mini-meta {
            font-size: 0.75rem;
            color: var(--muted);
            font-family: var(--font-mono);
        }

        /* FAQ */
        .faq-item {
            border: 1px solid var(--line);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--card);
            border-left: 2px solid var(--primary);
        }

        .faq-question {
            width: 100%;
            padding: 16px 20px;
            background: transparent;
            border: none;
            color: var(--text);
            font-size: 0.95rem;
            font-weight: 700;
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: all .2s;
        }

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

        .faq-question .fa-chevron-down {
            transition: transform .3s ease;
            font-size: 0.75rem;
            color: var(--primary);
        }

        .faq-question.open .fa-chevron-down {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding: 0 20px 16px;
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.75;
            display: none;
        }

        .faq-answer.show {
            display: block;
        }

        /* Subscribe CTA */
        .subscribe-cta {
            background: linear-gradient(135deg, rgba(0, 230, 118, 0.06) 0%, rgba(13, 20, 27, 0.95) 60%);
            border: 1px solid rgba(0, 230, 118, 0.3);
            border-radius: var(--radius);
            padding: 36px 32px;
            position: relative;
            overflow: hidden;
        }

        .subscribe-cta::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 240px;
            height: 240px;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.15) 0%, transparent 70%);
            pointer-events: none;
        }

        .subscribe-cta h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text);
        }

        .subscribe-cta p {
            font-size: 0.85rem;
            color: var(--muted);
            margin: 0 0 20px;
            max-width: 400px;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }

        .subscribe-form input {
            flex: 1;
            min-width: 240px;
            padding: 12px 16px;
            background: rgba(8, 12, 16, 0.8);
            border: 1px solid var(--line);
            border-radius: 8px;
            color: var(--text);
            font-size: 0.85rem;
            transition: border-color .25s, box-shadow .25s;
        }

        .subscribe-form input::placeholder {
            color: rgba(147, 161, 173, 0.6);
        }

        .subscribe-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.2);
        }

        .btn-primary {
            padding: 12px 24px;
            background: var(--primary);
            color: #0A0E14;
            border: none;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.85rem;
            cursor: pointer;
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.35);
            transition: all .25s ease;
            white-space: nowrap;
        }

        .btn-primary:hover {
            box-shadow: 0 0 24px rgba(0, 230, 118, 0.55);
            background: #1BFF8A;
            transform: translateY(-1px);
        }

        .compliance-tip {
            margin-top: 16px;
            padding: 12px 16px;
            background: rgba(255, 77, 45, 0.06);
            border-left: 2px solid var(--hot);
            border-radius: 6px;
            font-size: 0.75rem;
            color: var(--muted);
        }

        /* Footer */
        .site-footer {
            background: #070B10;
            border-top: 1px solid var(--primary);
            padding: 48px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 32px;
            margin-bottom: 32px;
        }

        .footer-desc {
            font-size: 0.8rem;
            color: var(--muted);
            line-height: 1.7;
            margin-top: 12px;
            max-width: 300px;
        }

        .site-footer h4 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 12px;
        }

        .site-footer a {
            display: block;
            font-size: 0.8rem;
            color: var(--muted);
            padding: 4px 0;
            transition: color .2s;
        }

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

        .footer-bottom {
            padding-top: 16px;
            border-top: 1px solid rgba(0, 230, 118, 0.1);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 0.75rem;
            color: var(--muted);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .section {
                padding: 48px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .category-hero h1 {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .feature-card .card-img {
                height: 200px;
            }
            .match-card .card-img {
                height: 140px;
            }
            .section {
                padding: 36px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .subscribe-form input {
                min-width: 100%;
            }
            .btn-primary {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .category-hero {
                padding: 36px 0 20px;
            }
            .category-hero h1 {
                font-size: 1.3rem;
            }
            .match-teams .team {
                font-size: 0.8rem;
            }
            .filter-toolbar {
                padding: 12px 14px;
            }
            .filter-btn {
                padding: 6px 12px;
                font-size: 0.72rem;
            }
            .data-panel {
                padding: 16px;
            }
            .subscribe-cta {
                padding: 24px 18px;
            }
        }

/* roulang page: category2 */
:root {
            --bg: #0A0E14;
            --bg-alt: #0D141B;
            --card: rgba(16, 24, 32, 0.92);
            --line: rgba(0, 230, 118, 0.16);
            --primary: #00E676;
            --primary-2: #A3FF12;
            --hot: #FF4D2D;
            --text: #E8EEF2;
            --muted: #93A1AD;
            --radius: 16px;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 24px rgba(0, 230, 118, 0.25);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'Roboto Mono', 'SFMono-Regular', 'Consolas', monospace;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-sans);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(8, 12, 16, 0.9);
            border-bottom: 1px solid rgba(0, 230, 118, 0.25);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo .logo-primary {
            color: var(--primary);
            text-shadow: 0 0 18px rgba(0, 230, 118, 0.5);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .desktop-nav a {
            padding: 6px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--muted);
            border-radius: 6px;
            position: relative;
            transition: color .2s, background .2s;
        }
        .desktop-nav a:hover {
            color: var(--text);
            background: rgba(0, 230, 118, 0.07);
        }
        .desktop-nav a.active {
            color: var(--primary);
            text-shadow: 0 0 12px rgba(0, 230, 118, 0.6);
        }
        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -17px;
            left: 50%;
            transform: translateX(-50%);
            width: 28px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.7);
        }
        .nav-cta {
            background: var(--primary);
            color: #0A0E14 !important;
            padding: 8px 18px !important;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.85rem !important;
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.35);
            transition: box-shadow .25s, transform .25s;
        }
        .nav-cta:hover {
            box-shadow: 0 0 24px rgba(0, 230, 118, 0.55);
            transform: translateY(-1px);
            background: #1BFF8A !important;
            color: #0A0E14 !important;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px;
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(8, 12, 16, 0.98);
            z-index: 49;
            padding: 20px 24px;
            flex-direction: column;
            gap: 4px;
            border-top: 1px solid var(--line);
            overflow-y: auto;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            padding: 14px 16px;
            font-size: 1rem;
            color: var(--muted);
            border-radius: 10px;
            border-left: 3px solid transparent;
            transition: all .2s;
        }
        .mobile-drawer a:hover {
            color: var(--text);
            background: rgba(0, 230, 118, 0.06);
        }
        .mobile-drawer a.active {
            color: var(--primary);
            background: rgba(0, 230, 118, 0.08);
            border-left: 3px solid var(--primary);
        }
        .section {
            padding: 72px 0;
        }
        .section-alt {
            background-color: var(--bg-alt);
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            letter-spacing: 0.3px;
            margin-bottom: 10px;
            color: var(--text);
        }
        .section-sub {
            font-size: 0.95rem;
            color: var(--muted);
            margin-bottom: 32px;
            line-height: 1.6;
            max-width: 720px;
        }
        .data-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }
        .data-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .card-image {
            aspect-ratio: 16/9;
            object-fit: cover;
            width: 100%;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            border: 1px solid var(--line);
            color: var(--primary);
            background: rgba(0, 230, 118, 0.06);
            white-space: nowrap;
        }
        .tag-hot {
            border-color: rgba(255, 77, 45, 0.35);
            color: var(--hot);
            background: rgba(255, 77, 45, 0.08);
        }
        .mono {
            font-family: var(--font-mono);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--primary);
            color: #0A0E14;
            padding: 12px 28px;
            border-radius: 10px;
            font-weight: 700;
            font-size: 0.95rem;
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.35);
            transition: box-shadow .25s, transform .25s, background .25s;
            cursor: pointer;
            border: none;
        }
        .btn-primary:hover {
            box-shadow: 0 0 28px rgba(0, 230, 118, 0.55);
            transform: translateY(-2px);
            background: #1BFF8A;
            color: #0A0E14;
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            padding: 11px 26px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid var(--line);
            transition: all .25s;
            cursor: pointer;
        }
        .btn-secondary:hover {
            border-color: var(--primary);
            background: rgba(0, 230, 118, 0.06);
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.2);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--muted);
            margin-bottom: 12px;
        }
        .breadcrumb a {
            color: var(--muted);
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .separator {
            color: var(--line);
        }
        .breadcrumb .current {
            color: var(--primary);
        }
        .cat-hero {
            min-height: 280px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, rgba(10,14,20,0.95) 0%, rgba(13,20,27,0.9) 50%, rgba(10,14,20,0.95) 100%);
            border-bottom: 1px solid var(--line);
            position: relative;
            overflow: hidden;
        }
        .cat-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(0,230,118,0.06) 0%, transparent 55%);
            pointer-events: none;
        }
        .cat-hero .container {
            position: relative;
            z-index: 1;
        }
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            padding: 16px 0;
            border-bottom: 1px solid var(--line);
            margin-bottom: 28px;
        }
        .filter-btn {
            background: transparent;
            border: 1px solid var(--line);
            color: var(--muted);
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 0.8rem;
            font-weight: 500;
            cursor: pointer;
            transition: all .2s;
        }
        .filter-btn:hover {
            border-color: var(--primary);
            color: var(--text);
            background: rgba(0,230,118,0.05);
        }
        .filter-btn.active {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(0,230,118,0.1);
            text-shadow: 0 0 8px rgba(0,230,118,0.4);
        }
        .faq-item {
            border: 1px solid var(--line);
            border-left: 3px solid var(--primary);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--card);
            transition: border-color .2s;
        }
        .faq-item:hover {
            border-color: rgba(0,230,118,0.4);
        }
        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            color: var(--text);
            padding: 16px 20px;
            font-size: 1rem;
            font-weight: 700;
            text-align: left;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            transition: color .2s;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .icon {
            transition: transform .3s;
            color: var(--primary);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-answer-inner {
            padding: 0 20px 16px;
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.7;
        }
        .site-footer {
            background: #070B10;
            border-top: 2px solid var(--primary);
            padding: 48px 0 20px;
            margin-top: 40px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.7;
            margin-top: 12px;
            max-width: 320px;
        }
        .site-footer h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
        }
        .site-footer a {
            display: block;
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 8px;
            transition: color .2s;
        }
        .site-footer a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--line);
            padding-top: 16px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            font-size: 0.75rem;
            color: var(--muted);
        }
        @media (max-width: 1024px) {
            .desktop-nav a {
                padding: 6px 10px;
                font-size: 0.82rem;
            }
            .nav-cta {
                padding: 7px 14px !important;
                font-size: 0.78rem !important;
            }
            .section {
                padding: 56px 0;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .section {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.45rem;
            }
            .cat-hero {
                min-height: 220px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .container {
                padding: 0 16px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .filter-bar {
                gap: 6px;
            }
            .filter-btn {
                padding: 5px 12px;
                font-size: 0.72rem;
            }
            .btn-primary, .btn-secondary {
                padding: 10px 20px;
                font-size: 0.85rem;
            }
            .cat-hero {
                min-height: 200px;
            }
        }

/* roulang page: category3 */
:root {
            --bg: #0A0E14;
            --bg-alt: #0D141B;
            --card: rgba(16, 24, 32, 0.92);
            --line: rgba(0, 230, 118, 0.16);
            --primary: #00E676;
            --primary-2: #A3FF12;
            --hot: #FF4D2D;
            --text: #E8EEF2;
            --muted: #93A1AD;
            --radius: 16px;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 24px rgba(0, 230, 118, 0.25);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'Roboto Mono', 'SFMono-Regular', 'Consolas', monospace;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-sans);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(8, 12, 16, 0.9);
            border-bottom: 1px solid rgba(0, 230, 118, 0.25);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo .logo-primary {
            color: var(--primary);
            text-shadow: 0 0 18px rgba(0, 230, 118, 0.5);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .desktop-nav a {
            padding: 6px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--muted);
            border-radius: 6px;
            position: relative;
            transition: color .2s, background .2s;
        }
        .desktop-nav a:hover {
            color: var(--text);
            background: rgba(0, 230, 118, 0.07);
        }
        .desktop-nav a.active {
            color: var(--primary);
            text-shadow: 0 0 12px rgba(0, 230, 118, 0.6);
        }
        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -17px;
            left: 50%;
            transform: translateX(-50%);
            width: 28px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.7);
        }
        .nav-cta {
            background: var(--primary);
            color: #0A0E14 !important;
            padding: 8px 18px !important;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.85rem !important;
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.35);
            transition: box-shadow .25s, transform .25s;
        }
        .nav-cta:hover {
            box-shadow: 0 0 24px rgba(0, 230, 118, 0.55);
            transform: translateY(-1px);
            background: #1BFF8A !important;
            color: #0A0E14 !important;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px;
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(8, 12, 16, 0.98);
            z-index: 49;
            padding: 20px 24px;
            flex-direction: column;
            gap: 4px;
            border-top: 1px solid var(--line);
            overflow-y: auto;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            padding: 14px 16px;
            font-size: 1rem;
            color: var(--muted);
            border-radius: 10px;
            border-left: 3px solid transparent;
            transition: all .2s;
        }
        .mobile-drawer a:hover {
            color: var(--text);
            background: rgba(0, 230, 118, 0.06);
        }
        .mobile-drawer a.active {
            color: var(--primary);
            background: rgba(0, 230, 118, 0.08);
            border-left: 3px solid var(--primary);
        }
        .page-head {
            min-height: 260px;
            display: flex;
            align-items: center;
            background: linear-gradient(180deg, rgba(10, 14, 20, 0.95) 0%, rgba(13, 20, 27, 0.9) 100%);
            border-bottom: 1px solid var(--line);
            padding: 48px 0 40px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--muted);
            margin-bottom: 14px;
        }
        .breadcrumb a {
            color: var(--muted);
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: rgba(0, 230, 118, 0.4);
        }
        .page-head h1 {
            font-size: 2.2rem;
            font-weight: 800;
            margin: 0 0 12px;
            letter-spacing: 0.5px;
            color: var(--text);
        }
        .page-head .head-desc {
            font-size: 1rem;
            color: var(--muted);
            max-width: 720px;
            margin: 0;
            line-height: 1.75;
        }
        .section-block {
            padding: 64px 0;
        }
        .section-block.alt {
            background: var(--bg-alt);
            border-top: 1px solid rgba(0, 230, 118, 0.08);
            border-bottom: 1px solid rgba(0, 230, 118, 0.08);
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 0 0 8px;
            letter-spacing: 0.3px;
            color: var(--text);
        }
        .section-sub {
            font-size: 0.95rem;
            color: var(--muted);
            margin: 0 0 32px;
            line-height: 1.7;
        }
        .focus-card {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: border-color .3s, box-shadow .3s;
        }
        .focus-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .focus-card .fc-img {
            position: relative;
            min-height: 320px;
            overflow: hidden;
        }
        .focus-card .fc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
        }
        .focus-card .fc-body {
            padding: 28px 30px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .focus-card .fc-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 14px;
        }
        .focus-card .fc-tag {
            padding: 4px 12px;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 999px;
            background: rgba(0, 230, 118, 0.1);
            color: var(--primary);
            border: 1px solid rgba(0, 230, 118, 0.25);
        }
        .focus-card .fc-tag.hot {
            background: rgba(255, 77, 45, 0.12);
            color: var(--hot);
            border-color: rgba(255, 77, 45, 0.3);
        }
        .focus-card h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--text);
            line-height: 1.4;
        }
        .focus-card p {
            font-size: 0.92rem;
            color: var(--muted);
            margin: 0 0 16px;
            line-height: 1.7;
        }
        .focus-card .fc-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-family: var(--font-mono);
            font-size: 0.78rem;
            color: var(--muted);
        }
        .filter-toolbar {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
            background: rgba(16, 24, 32, 0.6);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 12px 16px;
        }
        .filter-toolbar .ft-label {
            font-size: 0.82rem;
            color: var(--muted);
            margin-right: 4px;
            white-space: nowrap;
        }
        .filter-toolbar .ft-btn {
            padding: 7px 16px;
            font-size: 0.82rem;
            font-weight: 500;
            border-radius: 8px;
            background: transparent;
            color: var(--muted);
            border: 1px solid rgba(0, 230, 118, 0.12);
            cursor: pointer;
            transition: all .2s;
            white-space: nowrap;
        }
        .filter-toolbar .ft-btn:hover {
            color: var(--text);
            border-color: rgba(0, 230, 118, 0.35);
            background: rgba(0, 230, 118, 0.05);
        }
        .filter-toolbar .ft-btn.active {
            background: rgba(0, 230, 118, 0.12);
            color: var(--primary);
            border-color: var(--primary);
            box-shadow: 0 0 12px rgba(0, 230, 118, 0.2);
        }
        .knowledge-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .knowledge-card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: transform .25s, border-color .3s, box-shadow .3s;
            display: flex;
            flex-direction: column;
        }
        .knowledge-card:hover {
            transform: translateY(-4px);
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
        }
        .knowledge-card .kc-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
            background: var(--bg-alt);
        }
        .knowledge-card .kc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .knowledge-card .kc-body {
            padding: 18px 20px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .knowledge-card .kc-tag {
            display: inline-block;
            width: fit-content;
            padding: 3px 10px;
            font-size: 0.7rem;
            font-weight: 600;
            border-radius: 999px;
            background: rgba(0, 230, 118, 0.08);
            color: var(--primary);
            border: 1px solid rgba(0, 230, 118, 0.2);
            margin-bottom: 10px;
        }
        .knowledge-card h4 {
            font-size: 1.02rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text);
            line-height: 1.4;
            transition: color .2s;
        }
        .knowledge-card:hover h4 {
            color: var(--primary);
            text-shadow: 0 0 16px rgba(0, 230, 118, 0.4);
        }
        .knowledge-card p {
            font-size: 0.85rem;
            color: var(--muted);
            margin: 0 0 14px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .knowledge-card .kc-meta {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            color: var(--muted);
            display: flex;
            gap: 14px;
            border-top: 1px solid rgba(0, 230, 118, 0.08);
            padding-top: 12px;
        }
        .rules-panel {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 28px 30px;
            box-shadow: var(--shadow);
        }
        .rules-panel .rp-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 16px;
            margin-top: 18px;
        }
        .rules-panel .rp-item {
            background: rgba(0, 230, 118, 0.04);
            border: 1px solid rgba(0, 230, 118, 0.1);
            border-radius: 10px;
            padding: 14px 16px;
        }
        .rules-panel .rp-item .rp-label {
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 4px;
            display: block;
        }
        .rules-panel .rp-item .rp-text {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.6;
            margin: 0;
        }
        .article-briefs {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .article-brief {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 16px 18px;
            background: rgba(16, 24, 32, 0.6);
            border: 1px solid rgba(0, 230, 118, 0.1);
            border-radius: 12px;
            transition: border-color .25s, background .25s;
        }
        .article-brief:hover {
            border-color: var(--primary);
            background: rgba(0, 230, 118, 0.05);
        }
        .article-brief .ab-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
            margin-top: 8px;
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.6);
        }
        .article-brief .ab-title {
            font-size: 0.92rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
            transition: color .2s;
        }
        .article-brief:hover .ab-title {
            color: var(--primary);
        }
        .article-brief .ab-meta {
            font-size: 0.78rem;
            color: var(--muted);
            font-family: var(--font-mono);
            margin-top: 4px;
        }
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--card);
            border: 1px solid var(--line);
            border-left: 2px solid var(--primary);
            border-radius: 12px;
            overflow: hidden;
            transition: border-color .25s;
        }
        .faq-item:hover {
            border-color: rgba(0, 230, 118, 0.5);
        }
        .faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 18px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color .2s;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            color: var(--primary);
        }
        .faq-item summary .faq-icon {
            font-size: 0.8rem;
            color: var(--primary);
            transition: transform .3s;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
        }
        .subscribe-cta {
            background: linear-gradient(135deg, rgba(0, 230, 118, 0.08) 0%, rgba(10, 14, 20, 0.95) 60%);
            border: 1px solid rgba(0, 230, 118, 0.2);
            border-radius: var(--radius);
            padding: 36px 32px;
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .subscribe-cta .sc-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
        }
        .subscribe-cta .sc-desc {
            font-size: 0.9rem;
            color: var(--muted);
            margin: 0 0 6px;
            line-height: 1.7;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
        }
        .subscribe-form input {
            flex: 1;
            padding: 12px 16px;
            background: rgba(10, 14, 20, 0.8);
            border: 1px solid rgba(0, 230, 118, 0.2);
            border-radius: 10px;
            color: var(--text);
            font-size: 0.9rem;
            transition: border-color .25s, box-shadow .25s;
        }
        .subscribe-form input::placeholder {
            color: rgba(147, 161, 173, 0.6);
        }
        .subscribe-form input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 12px rgba(0, 230, 118, 0.25);
        }
        .subscribe-form button {
            padding: 12px 24px;
            background: var(--primary);
            color: #0A0E14;
            border: none;
            border-radius: 10px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.35);
            transition: box-shadow .25s, background .25s, transform .2s;
            white-space: nowrap;
        }
        .subscribe-form button:hover {
            box-shadow: 0 0 24px rgba(0, 230, 118, 0.55);
            background: #1BFF8A;
            transform: translateY(-1px);
        }
        .compliance-bar {
            margin-top: 16px;
            padding: 14px 18px;
            background: rgba(255, 77, 45, 0.06);
            border: 1px solid rgba(255, 77, 45, 0.2);
            border-radius: 10px;
            font-size: 0.8rem;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .compliance-bar i {
            color: var(--hot);
        }
        .more-btn-wrap {
            display: flex;
            justify-content: center;
            margin-top: 28px;
        }
        .btn-more {
            padding: 12px 32px;
            background: transparent;
            color: var(--primary);
            border: 1px solid rgba(0, 230, 118, 0.4);
            border-radius: 10px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all .25s;
        }
        .btn-more:hover {
            background: rgba(0, 230, 118, 0.08);
            border-color: var(--primary);
            box-shadow: 0 0 20px rgba(0, 230, 118, 0.3);
        }
        .site-footer {
            background: #070B0F;
            border-top: 1px solid var(--primary);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .site-footer h4 {
            font-size: 0.9rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 14px;
            letter-spacing: 0.5px;
        }
        .site-footer .footer-desc {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.7;
            margin: 12px 0 0;
            max-width: 320px;
        }
        .site-footer .footer-grid a {
            display: block;
            font-size: 0.85rem;
            color: var(--muted);
            padding: 4px 0;
            transition: color .2s;
        }
        .site-footer .footer-grid a:hover {
            color: var(--primary);
        }
        .site-footer .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            padding-top: 20px;
            border-top: 1px solid rgba(0, 230, 118, 0.08);
            font-size: 0.78rem;
            color: var(--muted);
        }
        @media (max-width: 1024px) {
            .knowledge-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .focus-card {
                grid-template-columns: 1fr;
            }
            .focus-card .fc-img {
                min-height: 220px;
            }
            .subscribe-cta {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .page-head {
                min-height: 200px;
                padding: 32px 0 28px;
            }
            .page-head h1 {
                font-size: 1.7rem;
            }
            .section-block {
                padding: 40px 0;
            }
            .section-title {
                font-size: 1.3rem;
            }
            .knowledge-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .article-briefs {
                grid-template-columns: 1fr;
            }
            .focus-card .fc-body {
                padding: 20px;
            }
            .rules-panel {
                padding: 20px;
            }
            .subscribe-cta {
                padding: 24px 20px;
            }
            .subscribe-form {
                flex-direction: column;
            }
            .filter-toolbar {
                gap: 6px;
            }
            .filter-toolbar .ft-btn {
                padding: 6px 12px;
                font-size: 0.78rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-head h1 {
                font-size: 1.4rem;
            }
            .focus-card .fc-img {
                min-height: 160px;
            }
            .knowledge-card .kc-body {
                padding: 14px 16px 16px;
            }
            .section-title {
                font-size: 1.15rem;
            }
        }

/* roulang page: category4 */
:root {
            --bg: #0A0E14;
            --bg-alt: #0D141B;
            --card: rgba(16, 24, 32, 0.92);
            --line: rgba(0, 230, 118, 0.16);
            --primary: #00E676;
            --primary-2: #A3FF12;
            --hot: #FF4D2D;
            --text: #E8EEF2;
            --muted: #93A1AD;
            --radius: 16px;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 24px rgba(0, 230, 118, 0.25);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'Roboto Mono', 'SFMono-Regular', 'Consolas', monospace;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-sans);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button, input {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(8, 12, 16, 0.9);
            border-bottom: 1px solid rgba(0, 230, 118, 0.25);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo .logo-primary {
            color: var(--primary);
            text-shadow: 0 0 18px rgba(0, 230, 118, 0.5);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .desktop-nav a {
            padding: 6px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--muted);
            border-radius: 6px;
            position: relative;
            transition: color .2s, background .2s;
        }
        .desktop-nav a:hover {
            color: var(--text);
            background: rgba(0, 230, 118, 0.07);
        }
        .desktop-nav a.active {
            color: var(--primary);
            text-shadow: 0 0 12px rgba(0, 230, 118, 0.6);
        }
        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -17px;
            left: 50%;
            transform: translateX(-50%);
            width: 28px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.7);
        }
        .nav-cta {
            background: var(--primary);
            color: #0A0E14 !important;
            padding: 8px 18px !important;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.85rem !important;
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.35);
            transition: box-shadow .25s, transform .25s;
        }
        .nav-cta:hover {
            box-shadow: 0 0 24px rgba(0, 230, 118, 0.55);
            transform: translateY(-1px);
            background: #1BFF8A !important;
            color: #0A0E14 !important;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px;
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(8, 12, 16, 0.98);
            z-index: 49;
            padding: 20px 24px;
            flex-direction: column;
            gap: 4px;
            border-top: 1px solid var(--line);
            overflow-y: auto;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            padding: 14px 16px;
            font-size: 1rem;
            color: var(--muted);
            border-radius: 10px;
            border-left: 3px solid transparent;
            transition: all .2s;
        }
        .mobile-drawer a:hover {
            color: var(--text);
            background: rgba(0, 230, 118, 0.06);
        }
        .mobile-drawer a.active {
            color: var(--primary);
            background: rgba(0, 230, 118, 0.08);
            border-left: 3px solid var(--primary);
        }
        /* Category H1 header */
        .cat-header {
            position: relative;
            padding: 52px 0 36px;
            background: var(--bg-alt);
            border-bottom: 1px solid var(--line);
            overflow: hidden;
        }
        .cat-header::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 20% 50%, rgba(0, 230, 118, 0.08) 0%, transparent 55%);
            pointer-events: none;
        }
        .cat-header .container {
            position: relative;
            z-index: 1;
        }
        .breadcrumb {
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--muted);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: rgba(0, 230, 118, 0.4);
        }
        .breadcrumb .current {
            color: var(--primary);
        }
        .cat-header h1 {
            font-size: 2rem;
            font-weight: 800;
            margin: 0 0 10px;
            color: var(--text);
            letter-spacing: 0.5px;
        }
        .cat-header .cat-desc {
            font-size: 1rem;
            color: var(--muted);
            max-width: 760px;
            margin: 0;
            line-height: 1.85;
        }
        /* Sections */
        main {
            display: block;
        }
        .section {
            padding: 56px 0;
        }
        .section-alt {
            background: var(--bg-alt);
        }
        .section-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin: 0 0 8px;
            color: var(--text);
            letter-spacing: 0.3px;
        }
        .section-sub {
            font-size: 0.95rem;
            color: var(--muted);
            margin: 0 0 28px;
            max-width: 720px;
        }
        /* Cards */
        .card {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: border .25s, box-shadow .25s, transform .25s;
        }
        .card:hover {
            border-color: rgba(0, 230, 118, 0.5);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .card-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s;
        }
        .card:hover .card-img img {
            transform: scale(1.04);
        }
        .card-body {
            padding: 18px 20px 20px;
        }
        .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 8px;
            line-height: 1.5;
            color: var(--text);
        }
        .card-summary {
            font-size: 0.9rem;
            color: var(--muted);
            margin: 0 0 12px;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-family: var(--font-mono);
            font-size: 0.75rem;
            color: var(--muted);
            flex-wrap: wrap;
        }
        .card-meta .tag {
            background: rgba(0, 230, 118, 0.08);
            border: 1px solid rgba(0, 230, 118, 0.3);
            border-radius: 4px;
            padding: 2px 8px;
            color: var(--primary);
            font-family: var(--font-sans);
            font-size: 0.72rem;
            font-weight: 600;
        }
        /* Featured card */
        .featured-card {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 0;
            min-height: 340px;
        }
        .featured-card .card-img {
            aspect-ratio: auto;
            height: 100%;
            min-height: 340px;
        }
        .featured-card .card-body {
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .featured-card .card-title {
            font-size: 1.5rem;
            line-height: 1.45;
            margin-bottom: 14px;
        }
        .featured-card .card-summary {
            font-size: 1rem;
            -webkit-line-clamp: 4;
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .featured-badge {
            display: inline-block;
            background: rgba(255, 77, 45, 0.12);
            border: 1px solid rgba(255, 77, 45, 0.35);
            color: var(--hot);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 4px;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        /* Filter bar */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }
        .filter-btn {
            background: rgba(16, 24, 32, 0.6);
            border: 1px solid var(--line);
            color: var(--muted);
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all .25s;
        }
        .filter-btn:hover {
            border-color: rgba(0, 230, 118, 0.4);
            color: var(--text);
        }
        .filter-btn.active {
            background: rgba(0, 230, 118, 0.1);
            border-color: rgba(0, 230, 118, 0.6);
            color: var(--primary);
            box-shadow: 0 0 12px rgba(0, 230, 118, 0.15);
        }
        /* Grid */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        /* Knowledge panel */
        .knowledge-panel {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow);
        }
        .knowledge-panel h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin: 0 0 18px;
            color: var(--primary);
        }
        .knowledge-list {
            list-style: none;
            padding: 0;
            margin: 0;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }
        .knowledge-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.9rem;
            color: var(--text);
            line-height: 1.7;
        }
        .knowledge-list li .icon {
            color: var(--primary);
            font-size: 0.85rem;
            margin-top: 4px;
            flex-shrink: 0;
        }
        /* Article list */
        .article-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .article-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 14px 16px;
            background: rgba(16, 24, 32, 0.5);
            border: 1px solid var(--line);
            border-radius: 10px;
            transition: all .25s;
        }
        .article-item:hover {
            border-color: rgba(0, 230, 118, 0.4);
            background: rgba(0, 230, 118, 0.04);
            transform: translateX(4px);
        }
        .article-item-left {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 1;
            min-width: 0;
        }
        .article-item-left .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            flex-shrink: 0;
        }
        .article-item-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .article-item-meta {
            font-family: var(--font-mono);
            font-size: 0.75rem;
            color: var(--muted);
            white-space: nowrap;
            flex-shrink: 0;
        }
        /* Learning tip */
        .learning-tip {
            background: rgba(0, 230, 118, 0.05);
            border: 1px solid rgba(0, 230, 118, 0.2);
            border-left: 3px solid var(--primary);
            border-radius: 10px;
            padding: 20px 24px;
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.8;
        }
        .learning-tip strong {
            color: var(--primary);
            font-weight: 600;
        }
        /* Subscribe CTA */
        .subscribe-card {
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 28px;
            align-items: center;
            background: var(--card);
            border: 1px solid rgba(0, 230, 118, 0.3);
            border-radius: var(--radius);
            padding: 32px;
            box-shadow: var(--shadow-glow);
        }
        .subscribe-card h3 {
            font-size: 1.3rem;
            margin: 0 0 8px;
            color: var(--text);
        }
        .subscribe-card p {
            font-size: 0.9rem;
            color: var(--muted);
            margin: 0;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            flex-shrink: 0;
        }
        .subscribe-form input {
            background: var(--bg-alt);
            border: 1px solid var(--line);
            border-radius: 8px;
            padding: 10px 16px;
            color: var(--text);
            font-size: 0.9rem;
            min-width: 240px;
            transition: border .25s;
        }
        .subscribe-form input:focus {
            border-color: var(--primary);
            outline: none;
        }
        .subscribe-form input::placeholder {
            color: rgba(147, 161, 173, 0.6);
        }
        .btn-primary {
            background: var(--primary);
            color: #0A0E14;
            padding: 10px 20px;
            border: none;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.9rem;
            cursor: pointer;
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.3);
            transition: all .25s;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: #1BFF8A;
            box-shadow: 0 0 24px rgba(0, 230, 118, 0.5);
            transform: translateY(-1px);
        }
        .btn-outline {
            background: transparent;
            border: 1px solid rgba(0, 230, 118, 0.5);
            color: var(--primary);
            padding: 10px 20px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: all .25s;
            white-space: nowrap;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            box-shadow: 0 0 18px rgba(0, 230, 118, 0.3);
            background: rgba(0, 230, 118, 0.08);
        }
        .compliance-note {
            font-size: 0.8rem;
            color: var(--muted);
            margin-top: 14px;
            display: flex;
            align-items: center;
            gap: 8px;
            opacity: 0.85;
        }
        .compliance-note i {
            color: var(--primary);
            font-size: 0.75rem;
        }
        /* Footer */
        .site-footer {
            background: #080C10;
            border-top: 1px solid rgba(0, 230, 118, 0.25);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 36px;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.8;
            margin: 12px 0 0;
        }
        .site-footer h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 14px;
        }
        .site-footer .footer-grid a {
            display: block;
            font-size: 0.85rem;
            color: var(--muted);
            padding: 4px 0;
            transition: color .2s;
        }
        .site-footer .footer-grid a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            border-top: 1px solid var(--line);
            padding-top: 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.8rem;
            color: var(--muted);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-card {
                grid-template-columns: 1fr;
                min-height: auto;
            }
            .featured-card .card-img {
                min-height: 260px;
                aspect-ratio: 16/9;
            }
            .featured-card .card-body {
                padding: 24px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .subscribe-card {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .subscribe-form {
                flex-wrap: wrap;
            }
            .subscribe-form input {
                min-width: 100%;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .section {
                padding: 40px 0;
            }
            .cat-header {
                padding: 36px 0 28px;
            }
            .cat-header h1 {
                font-size: 1.5rem;
            }
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .grid-2 {
                grid-template-columns: 1fr;
            }
            .knowledge-list {
                grid-template-columns: 1fr;
            }
            .article-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .article-item-meta {
                padding-left: 18px;
            }
            .featured-card .card-img {
                min-height: 200px;
            }
            .featured-card .card-title {
                font-size: 1.2rem;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .filter-btn {
                font-size: 0.78rem;
                padding: 6px 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .subscribe-form input {
                min-width: 100%;
            }
            .btn-primary, .btn-outline {
                width: 100%;
                text-align: center;
            }
        }
        .more-link {
            display: inline-block;
            color: var(--primary);
            font-weight: 600;
            font-size: 0.9rem;
            border-bottom: 1px solid rgba(0, 230, 118, 0.3);
            transition: border .25s, color .25s;
            margin-top: 16px;
        }
        .more-link:hover {
            border-color: var(--primary);
            color: #1BFF8A;
        }
        .section-divider {
            height: 1px;
            background: var(--line);
            max-width: 1200px;
            margin: 0 auto;
        }

/* roulang page: category5 */
:root {
            --bg: #0A0E14;
            --bg-alt: #0D141B;
            --card: rgba(16, 24, 32, 0.92);
            --line: rgba(0, 230, 118, 0.16);
            --primary: #00E676;
            --primary-2: #A3FF12;
            --hot: #FF4D2D;
            --text: #E8EEF2;
            --muted: #93A1AD;
            --radius: 16px;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 24px rgba(0, 230, 118, 0.25);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-mono: 'Roboto Mono', 'SFMono-Regular', 'Consolas', monospace;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            margin: 0;
            background-color: var(--bg);
            color: var(--text);
            font-family: var(--font-sans);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* Navigation */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(8, 12, 16, 0.9);
            border-bottom: 1px solid rgba(0, 230, 118, 0.25);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            height: 64px;
            display: flex;
            align-items: center;
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }
        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .logo .logo-primary {
            color: var(--primary);
            text-shadow: 0 0 18px rgba(0, 230, 118, 0.5);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .desktop-nav a {
            padding: 6px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--muted);
            border-radius: 6px;
            position: relative;
            transition: color .2s, background .2s;
        }
        .desktop-nav a:hover {
            color: var(--text);
            background: rgba(0, 230, 118, 0.07);
        }
        .desktop-nav a.active {
            color: var(--primary);
            text-shadow: 0 0 12px rgba(0, 230, 118, 0.6);
        }
        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            bottom: -17px;
            left: 50%;
            transform: translateX(-50%);
            width: 28px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(0, 230, 118, 0.7);
        }
        .nav-cta {
            background: var(--primary);
            color: #0A0E14 !important;
            padding: 8px 18px !important;
            border-radius: 8px;
            font-weight: 700;
            font-size: 0.85rem !important;
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.35);
            transition: box-shadow .25s, transform .25s;
        }
        .nav-cta:hover {
            box-shadow: 0 0 24px rgba(0, 230, 118, 0.55);
            transform: translateY(-1px);
            background: #1BFF8A !important;
            color: #0A0E14 !important;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text);
            font-size: 1.5rem;
            cursor: pointer;
            padding: 4px;
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 64px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(8, 12, 16, 0.98);
            z-index: 49;
            padding: 20px 24px;
            flex-direction: column;
            gap: 4px;
            border-top: 1px solid var(--line);
            overflow-y: auto;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            padding: 14px 16px;
            font-size: 1rem;
            color: var(--muted);
            border-radius: 10px;
            border-left: 3px solid transparent;
            transition: all .2s;
        }
        .mobile-drawer a:hover {
            color: var(--text);
            background: rgba(0, 230, 118, 0.06);
        }
        .mobile-drawer a.active {
            color: var(--primary);
            background: rgba(0, 230, 118, 0.08);
            border-left: 3px solid var(--primary);
        }
        /* Page header area (compact H1 region for category pages) */
        .page-header {
            background-color: var(--bg-alt);
            border-bottom: 1px solid var(--line);
            padding: 56px 0 48px;
            min-height: 260px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .page-header::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(0, 230, 118, 0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.82rem;
            color: var(--muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--muted);
            transition: color .2s;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--line);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }
        /* Section base */
        .section-block {
            padding: 72px 0;
            position: relative;
        }
        .section-alt {
            background-color: var(--bg-alt);
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.3px;
            margin: 0 0 12px;
            line-height: 1.35;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--muted);
            margin: 0 0 32px;
            line-height: 1.7;
            max-width: 680px;
        }
        .section-head {
            margin-bottom: 40px;
        }
        /* Cards */
        .card-base {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            transition: border-color .25s, box-shadow .25s, transform .25s;
        }
        .card-base:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-glow);
            transform: translateY(-4px);
        }
        .card-pad {
            padding: 28px;
        }
        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #0A0E14;
            font-weight: 700;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.92rem;
            border: none;
            cursor: pointer;
            box-shadow: 0 0 18px rgba(0, 230, 118, 0.3);
            transition: box-shadow .25s, transform .25s, background .25s;
            text-decoration: none;
        }
        .btn-primary:hover {
            box-shadow: 0 0 28px rgba(0, 230, 118, 0.5);
            transform: translateY(-2px);
            background: #1BFF8A;
            color: #0A0E14;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            font-weight: 600;
            padding: 11px 22px;
            border-radius: 10px;
            font-size: 0.92rem;
            border: 1px solid var(--primary);
            cursor: pointer;
            transition: box-shadow .25s, background .25s, transform .25s;
            text-decoration: none;
        }
        .btn-outline:hover {
            box-shadow: 0 0 20px rgba(0, 230, 118, 0.35);
            background: rgba(0, 230, 118, 0.08);
            transform: translateY(-2px);
        }
        /* Tag chips */
        .chip {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            font-size: 0.78rem;
            font-weight: 500;
            border-radius: 20px;
            border: 1px solid var(--line);
            color: var(--muted);
            background: rgba(0, 230, 118, 0.04);
            letter-spacing: 0.3px;
            transition: all .2s;
        }
        .chip:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .chip-hot {
            border-color: rgba(255, 77, 45, 0.4);
            color: var(--hot);
            background: rgba(255, 77, 45, 0.06);
        }
        /* FAQ accordion */
        .faq-item {
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: 14px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color .25s, box-shadow .25s;
        }
        .faq-item:hover {
            border-color: rgba(0, 230, 118, 0.35);
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.08);
        }
        .faq-item summary {
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            border-left: 3px solid var(--primary);
            transition: background .2s, color .2s;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            background: rgba(0, 230, 118, 0.04);
            color: var(--primary);
        }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            font-size: 0.85rem;
            color: var(--primary);
            transition: transform .25s ease;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 24px 20px 24px;
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.8;
            border-left: 3px solid rgba(0, 230, 118, 0.3);
        }
        /* Filter buttons */
        .filter-btn {
            padding: 8px 20px;
            font-size: 0.86rem;
            font-weight: 500;
            border-radius: 8px;
            border: 1px solid var(--line);
            background: rgba(16, 24, 32, 0.6);
            color: var(--muted);
            cursor: pointer;
            transition: all .25s;
            white-space: nowrap;
        }
        .filter-btn:hover {
            border-color: var(--primary);
            color: var(--text);
            background: rgba(0, 230, 118, 0.05);
        }
        .filter-btn.active {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(0, 230, 118, 0.08);
            text-shadow: 0 0 8px rgba(0, 230, 118, 0.4);
        }
        /* Footer */
        .site-footer {
            background: #070A0F;
            border-top: 1px solid var(--primary);
            padding: 56px 0 28px;
            margin-top: 0;
        }
        .site-footer .container {
            max-width: 1200px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }
        .footer-grid h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
            margin: 0 0 16px;
            letter-spacing: 0.5px;
        }
        .footer-grid a {
            display: block;
            font-size: 0.85rem;
            color: var(--muted);
            padding: 4px 0;
            transition: color .2s, padding-left .2s;
        }
        .footer-grid a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-desc {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.8;
            margin: 12px 0 0;
            max-width: 360px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(0, 230, 118, 0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.78rem;
            color: var(--muted);
        }
        /* Form */
        .form-input {
            width: 100%;
            background: rgba(10, 14, 20, 0.8);
            border: 1px solid var(--line);
            border-radius: 10px;
            padding: 12px 16px;
            color: var(--text);
            font-size: 0.9rem;
            transition: border-color .25s, box-shadow .25s;
        }
        .form-input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 16px rgba(0, 230, 118, 0.15);
        }
        .form-input::placeholder {
            color: rgba(147, 161, 173, 0.6);
        }
        /* Responsive */
        @media (max-width: 1024px) {
            .desktop-nav a {
                padding: 6px 10px;
                font-size: 0.83rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .section-block {
                padding: 56px 0;
            }
        }
        @media (max-width: 768px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .page-header {
                min-height: 220px;
                padding: 40px 0 32px;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-block {
                padding: 40px 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .filter-btn {
                padding: 6px 14px;
                font-size: 0.78rem;
            }
            .faq-item summary {
                padding: 16px 16px;
                font-size: 0.92rem;
            }
            .faq-item .faq-answer {
                padding: 0 16px 16px 16px;
                font-size: 0.86rem;
            }
            .card-pad {
                padding: 20px;
            }
        }