/* roulang page: index */
:root {
            --bg: #0B0F14;
            --surface: #111820;
            --surface-2: #16212B;
            --brand-1: #00F0B5;
            --brand-2: #00C2FF;
            --accent: #FFB020;
            --danger: #FF4D6D;
            --text: #F5F7FA;
            --text-muted: #8A94A6;
            --line: rgba(255, 255, 255, 0.08);
            --line-hover: rgba(0, 240, 181, 0.35);
            --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.45);
            --ring-brand: 0 0 0 4px rgba(0, 240, 181, 0.25);
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --radius-3xl: 1.75rem;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        main {
            flex: 1;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
        }

        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
            background: none;
            border: none;
            outline: none;
            cursor: pointer;
        }

        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: none;
            box-shadow: var(--ring-brand);
            border-radius: 0.5rem;
        }

        .container-main {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        @media (min-width: 640px) {
            .container-main {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        @media (min-width: 1024px) {
            .container-main {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        .section-py {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
        }

        @media (min-width: 768px) {
            .section-py {
                padding-top: 5.5rem;
                padding-bottom: 5.5rem;
            }
        }

        @media (min-width: 1024px) {
            .section-py {
                padding-top: 6.5rem;
                padding-bottom: 6.5rem;
            }
        }

        .section-alt {
            background-color: rgba(17, 24, 32, 0.55);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .text-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .bg-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
        }

        .border-gradient-brand {
            border: 1px solid transparent;
            background:
                linear-gradient(var(--surface), var(--surface)) padding-box,
                linear-gradient(135deg, rgba(0, 240, 181, 0.5), rgba(0, 194, 255, 0.5)) border-box;
        }

        .card-surface {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

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

        .card-surface-sm {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .card-surface-sm:hover {
            transform: translateY(-2px);
            border-color: var(--line-hover);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            color: #0B0F14;
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            border: none;
            cursor: pointer;
            transition: filter 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            box-shadow: 0 8px 24px rgba(0, 240, 181, 0.25);
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-1px);
            box-shadow: 0 12px 32px rgba(0, 240, 181, 0.35);
        }

        .btn-primary:active {
            transform: scale(0.98);
            filter: brightness(0.95);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            cursor: pointer;
            transition: border-color 0.3s ease, color 0.3s ease, background-color 0.3s ease, transform 0.2s ease;
            letter-spacing: 0.01em;
        }

        .btn-secondary:hover {
            border-color: rgba(0, 240, 181, 0.5);
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.05);
        }

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

        .badge-accent {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.35rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(255, 176, 32, 0.12);
            border: 1px solid rgba(255, 176, 32, 0.3);
            letter-spacing: 0.02em;
        }

        .badge-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.35rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.78rem;
            font-weight: 600;
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.1);
            border: 1px solid rgba(0, 240, 181, 0.3);
            letter-spacing: 0.02em;
        }

        .badge-muted {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.35rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.12);
            letter-spacing: 0.02em;
        }

        .badge-live {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.35rem 0.85rem;
            border-radius: 9999px;
            font-size: 0.78rem;
            font-weight: 700;
            color: #fff;
            background: rgba(255, 77, 109, 0.85);
            border: 1px solid rgba(255, 77, 109, 0.6);
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }

        .badge-live .pulse-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #fff;
            animation: pulse-dot 1.2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(0.7);
            }
        }

        .stat-num {
            font-family: 'Inter', 'Barlow', 'IBM Plex Sans', 'PingFang SC', sans-serif;
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            font-size: 2rem;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .stat-num-sm {
            font-family: 'Inter', 'Barlow', 'IBM Plex Sans', 'PingFang SC', sans-serif;
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            font-size: 1.35rem;
            line-height: 1.25;
            letter-spacing: -0.01em;
        }

        .section-title {
            font-size: clamp(1.6rem, 3.5vw, 2.15rem);
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 1rem;
        }

        .section-subtitle {
            font-size: 1rem;
            line-height: 1.75;
            color: var(--text-muted);
            max-width: 42rem;
            margin-bottom: 2.5rem;
        }

        .nav-link {
            position: relative;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 0.5rem 0.25rem;
            letter-spacing: 0.02em;
            transition: color 0.25s ease;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--brand-1), var(--brand-2));
            transition: width 0.3s ease;
            border-radius: 2px;
        }

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

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

        .nav-link.active {
            color: var(--brand-1);
        }

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

        .nav-link.active .nav-dot {
            width: 5px;
            height: 5px;
            background: var(--brand-1);
            border-radius: 50%;
            display: inline-block;
            margin-right: 6px;
            vertical-align: middle;
            animation: pulse-dot 1.5s ease-in-out infinite;
        }

        .header-fixed {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(11, 15, 20, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--line);
            height: 72px;
            display: flex;
            align-items: center;
        }

        @media (min-width: 1024px) {
            .header-fixed {
                height: 80px;
            }
        }

        .mobile-drawer {
            position: fixed;
            top: 72px;
            right: 0;
            bottom: 0;
            width: 100%;
            max-width: 360px;
            background: var(--surface-2);
            border-left: 1px solid var(--line);
            transform: translateX(100%);
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            z-index: 60;
            overflow-y: auto;
            padding: 1.5rem;
            box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5);
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer-overlay {
            position: fixed;
            inset: 0;
            top: 72px;
            background: rgba(0, 0, 0, 0.55);
            z-index: 55;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }

        .mobile-drawer-overlay.show {
            opacity: 1;
            pointer-events: auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--line);
            transition: border-color 0.3s ease;
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.25rem 0.5rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text);
            text-align: left;
            cursor: pointer;
            transition: color 0.3s ease;
        }

        .faq-question:hover {
            color: var(--brand-1);
        }

        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: transform 0.35s ease, color 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--brand-1);
            border-color: rgba(0, 240, 181, 0.4);
            background: rgba(0, 240, 181, 0.06);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
            color: var(--text-muted);
            font-size: 0.92rem;
            line-height: 1.75;
            padding-left: 0.5rem;
            padding-right: 0.5rem;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1.25rem;
            padding-top: 0.25rem;
        }

        .trend-bar {
            display: flex;
            align-items: flex-end;
            gap: 0.5rem;
            height: 140px;
            padding: 0.5rem 0;
        }

        .trend-bar .bar {
            flex: 1;
            min-width: 8px;
            background: linear-gradient(180deg, rgba(0, 240, 181, 0.75) 0%, rgba(0, 194, 255, 0.4) 100%);
            border-radius: 6px 6px 2px 2px;
            transition: height 0.6s cubic-bezier(0.4, 0, 0.2, 1), filter 0.3s ease;
            position: relative;
        }

        .trend-bar .bar:hover {
            filter: brightness(1.25);
        }

        .trend-bar .bar.highlight {
            background: linear-gradient(180deg, var(--accent) 0%, rgba(255, 176, 32, 0.5) 100%);
        }

        .news-item {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            padding: 1.5rem;
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }

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

        .news-date {
            font-size: 0.78rem;
            font-weight: 500;
            color: var(--text-muted);
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            line-height: 1.45;
            color: var(--text);
            transition: color 0.3s ease;
        }

        .news-item:hover .news-title {
            color: var(--brand-1);
        }

        .news-summary {
            font-size: 0.9rem;
            line-height: 1.7;
            color: var(--text-muted);
        }

        .btn-read-more {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--brand-1);
            transition: gap 0.3s ease, color 0.3s ease;
        }

        .btn-read-more:hover {
            color: var(--brand-2);
            gap: 0.6rem;
        }

        .input-subscribe {
            flex: 1;
            min-width: 0;
            padding: 0.875rem 1.25rem;
            border-radius: 9999px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.04);
            color: var(--text);
            font-size: 0.95rem;
            transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
        }

        .input-subscribe::placeholder {
            color: var(--text-muted);
            opacity: 0.8;
        }

        .input-subscribe:focus {
            border-color: rgba(0, 240, 181, 0.5);
            box-shadow: 0 0 0 4px rgba(0, 240, 181, 0.15);
            background: rgba(255, 255, 255, 0.06);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background:
                linear-gradient(135deg, rgba(11, 15, 20, 0.88) 0%, rgba(11, 15, 20, 0.55) 45%, rgba(11, 15, 20, 0.75) 100%),
                radial-gradient(ellipse at 30% 40%, rgba(0, 240, 181, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(0, 194, 255, 0.1) 0%, transparent 55%);
        }

        .data-card-hero {
            background: rgba(17, 24, 32, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 1.5rem;
            box-shadow: 0 24px 56px rgba(0, 0, 0, 0.5);
            transition: border-color 0.3s ease, transform 0.3s ease;
        }

        .data-card-hero:hover {
            border-color: rgba(0, 240, 181, 0.35);
            transform: translateY(-2px);
        }

        .step-connector {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--brand-1);
            font-size: 1.2rem;
            font-weight: 500;
        }

        .footer-link {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color 0.25s ease;
            line-height: 1.8;
        }

        .footer-link:hover {
            color: var(--brand-1);
        }

        .footer-heading {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }

        .image-cover {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: 1rem 1rem 0 0;
            background: var(--surface-2);
        }

        .image-cover-rounded {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: 1.25rem;
            background: var(--surface-2);
        }

        .image-cover-4-3 {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            border-radius: 1.25rem;
            background: var(--surface-2);
        }

        @media (max-width: 767px) {
            .section-title {
                font-size: 1.5rem;
            }
            .stat-num {
                font-size: 1.6rem;
            }
            .stat-num-sm {
                font-size: 1.15rem;
            }
            .trend-bar {
                height: 100px;
                gap: 0.35rem;
            }
            .news-item {
                padding: 1.1rem;
            }
        }

        @media (max-width: 520px) {
            .container-main {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .stat-num {
                font-size: 1.4rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 0.75rem 1.25rem;
                font-size: 0.88rem;
            }
            .trend-bar {
                height: 80px;
                gap: 0.25rem;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
        }

        .skip-link {
            position: absolute;
            top: -100px;
            left: 1rem;
            z-index: 100;
            background: var(--brand-1);
            color: #0B0F14;
            padding: 0.75rem 1.5rem;
            border-radius: 0.75rem;
            font-weight: 600;
            transition: top 0.3s ease;
        }

        .skip-link:focus {
            top: 1rem;
        }

/* roulang page: category2 */
:root {
            --bg: #0B0F14;
            --surface: #111820;
            --surface-2: #16212B;
            --brand-1: #00F0B5;
            --brand-2: #00C2FF;
            --accent: #FFB020;
            --danger: #FF4D6D;
            --text: #F5F7FA;
            --text-muted: #8A94A6;
            --line: rgba(255, 255, 255, 0.08);
            --line-hover: rgba(0, 240, 181, 0.35);
            --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.45);
            --ring-brand: 0 0 0 4px rgba(0, 240, 181, 0.25);
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --radius-3xl: 1.75rem;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        main {
            flex: 1;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
            background: none;
            border: none;
            outline: none;
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: none;
            box-shadow: var(--ring-brand);
            border-radius: 0.5rem;
        }
        .container-main {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (min-width: 640px) {
            .container-main {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        .section-py {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
        }
        @media (min-width: 768px) {
            .section-py {
                padding-top: 5.5rem;
                padding-bottom: 5.5rem;
            }
        }
        @media (min-width: 1024px) {
            .section-py {
                padding-top: 6.5rem;
                padding-bottom: 6.5rem;
            }
        }
        .section-alt {
            background-color: rgba(17, 24, 32, 0.55);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .text-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
        }
        .border-gradient-brand {
            border: 1px solid transparent;
            background: linear-gradient(var(--surface), var(--surface)) padding-box,
                linear-gradient(135deg, rgba(0, 240, 181, 0.5), rgba(0, 194, 255, 0.5)) border-box;
        }
        .card-surface {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card-surface:hover {
            transform: translateY(-4px);
            border-color: var(--line-hover);
            box-shadow: var(--shadow-hover);
        }
        .card-surface-sm {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card-surface-sm:hover {
            transform: translateY(-2px);
            border-color: var(--line-hover);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            color: #0B0F14;
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            border: none;
            cursor: pointer;
            transition: filter 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            box-shadow: 0 8px 24px rgba(0, 240, 181, 0.25);
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-1px);
            box-shadow: 0 12px 32px rgba(0, 240, 181, 0.35);
        }
        .btn-primary:active {
            transform: scale(0.98);
            filter: brightness(0.95);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            cursor: pointer;
            transition: border-color 0.3s ease, color 0.3s ease, background-color 0.3s ease, transform 0.2s ease;
            letter-spacing: 0.01em;
        }
        .btn-secondary:hover {
            border-color: rgba(0, 240, 181, 0.5);
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.05);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .badge-accent {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #0B0F14;
            background: var(--accent);
            letter-spacing: 0.02em;
        }
        .badge-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #0B0F14;
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
        }
        .badge-surface {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-muted);
            background: var(--surface-2);
            border: 1px solid var(--line);
        }
        .badge-live {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #FFFFFF;
            background: rgba(255, 77, 109, 0.9);
            letter-spacing: 0.02em;
        }
        .badge-done {
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-muted);
            background: rgba(138, 148, 166, 0.15);
            letter-spacing: 0.02em;
        }
        .header-main {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(11, 15, 20, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
            height: 76px;
            display: flex;
            align-items: center;
        }
        @media (max-width: 1023px) {
            .header-main {
                height: 68px;
            }
        }
        .nav-link {
            position: relative;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 0.5rem 0.25rem;
            transition: color 0.25s ease;
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }
        .nav-link:hover {
            color: var(--text);
        }
        .nav-link.active {
            color: var(--brand-1);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            border-radius: 9999px;
        }
        .nav-dot {
            width: 6px;
            height: 6px;
            border-radius: 9999px;
            background: var(--brand-1);
            display: inline-block;
            box-shadow: 0 0 8px rgba(0, 240, 181, 0.7);
        }
        .nav-link.active .nav-dot {
            background: var(--brand-1);
        }
        .footer-heading {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-link {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color 0.25s ease;
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }
        .footer-link:hover {
            color: var(--brand-1);
        }
        .timeline-item {
            position: relative;
            padding-left: 3rem;
            padding-bottom: 2rem;
            border-left: 1px solid var(--line);
            margin-left: 0.75rem;
        }
        .timeline-item:last-child {
            padding-bottom: 0;
            border-left-color: transparent;
        }
        .timeline-dot {
            position: absolute;
            left: -0.625rem;
            top: 0.25rem;
            width: 1.25rem;
            height: 1.25rem;
            border-radius: 9999px;
            background: var(--surface);
            border: 2px solid var(--brand-1);
            box-shadow: 0 0 0 4px rgba(0, 240, 181, 0.12);
        }
        .timeline-dot.live-dot {
            border-color: var(--danger);
            box-shadow: 0 0 0 4px rgba(255, 77, 109, 0.18);
        }
        .timeline-dot.done-dot {
            border-color: var(--text-muted);
            box-shadow: 0 0 0 4px rgba(138, 148, 166, 0.1);
        }
        .filter-select {
            background: var(--surface-2);
            border: 1px solid var(--line);
            border-radius: 0.75rem;
            padding: 0.6rem 1rem;
            color: var(--text);
            font-size: 0.9rem;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%238A94A6' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m4 6 4 4 4-4'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 0.75rem center;
            padding-right: 2.5rem;
            min-width: 150px;
        }
        .filter-select:focus {
            border-color: rgba(0, 240, 181, 0.5);
            box-shadow: var(--ring-brand);
        }
        .filter-input {
            background: var(--surface-2);
            border: 1px solid var(--line);
            border-radius: 0.75rem;
            padding: 0.6rem 1rem;
            color: var(--text);
            font-size: 0.9rem;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            width: 100%;
        }
        .filter-input:focus {
            border-color: rgba(0, 240, 181, 0.5);
            box-shadow: var(--ring-brand);
        }
        .filter-input::placeholder {
            color: rgba(138, 148, 166, 0.7);
        }
        .banner-img-cover {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            inset: 0;
            z-index: -1;
        }
        .banner-overlay {
            position: relative;
            overflow: hidden;
            background: linear-gradient(135deg, rgba(11, 15, 20, 0.95) 0%, rgba(17, 24, 32, 0.82) 40%, rgba(11, 15, 20, 0.88) 100%);
        }
        .banner-overlay::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(0, 240, 181, 0.12) 0%, rgba(0, 194, 255, 0.08) 50%, transparent 100%);
            pointer-events: none;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border-width: 0;
        }
        .mobile-menu-panel {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(11, 15, 20, 0.98);
            z-index: 49;
            padding: 1.5rem;
            flex-direction: column;
            gap: 0.5rem;
            overflow-y: auto;
        }
        .mobile-menu-panel.open {
            display: flex;
        }
        .mobile-nav-link {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.9rem 1rem;
            border-radius: 0.75rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-muted);
            border: 1px solid transparent;
            transition: all 0.25s ease;
        }
        .mobile-nav-link:hover,
        .mobile-nav-link.active {
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.06);
            border-color: var(--line);
        }
        .stat-number {
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            letter-spacing: -0.02em;
        }
        .trend-bar {
            height: 8px;
            border-radius: 9999px;
            background: var(--surface-2);
            overflow: hidden;
            position: relative;
        }
        .trend-bar-fill {
            height: 100%;
            border-radius: 9999px;
            background: linear-gradient(90deg, var(--brand-1) 0%, var(--brand-2) 100%);
            transition: width 0.6s ease;
        }
        .trend-bar-fill.accent-fill {
            background: linear-gradient(90deg, var(--accent) 0%, var(--brand-1) 100%);
        }
        .section-title {
            font-size: clamp(1.5rem, 3vw, 2rem);
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 42rem;
        }
        .breadcrumb-link {
            color: var(--text-muted);
            font-size: 0.85rem;
            transition: color 0.25s ease;
        }
        .breadcrumb-link:hover {
            color: var(--brand-1);
        }
        .breadcrumb-sep {
            color: rgba(138, 148, 166, 0.5);
            font-size: 0.85rem;
            margin: 0 0.5rem;
        }
        .current-page-label {
            color: var(--brand-1);
            font-size: 0.85rem;
            font-weight: 500;
        }

/* roulang page: category3 */
:root {
            --bg: #0B0F14;
            --surface: #111820;
            --surface-2: #16212B;
            --brand-1: #00F0B5;
            --brand-2: #00C2FF;
            --accent: #FFB020;
            --danger: #FF4D6D;
            --text: #F5F7FA;
            --text-muted: #8A94A6;
            --line: rgba(255, 255, 255, 0.08);
            --line-hover: rgba(0, 240, 181, 0.35);
            --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.45);
            --ring-brand: 0 0 0 4px rgba(0, 240, 181, 0.25);
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --radius-3xl: 1.75rem;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            margin: 0;
        }
        main {
            flex: 1;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
            background: none;
            border: none;
            outline: none;
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: none;
            box-shadow: var(--ring-brand);
            border-radius: 0.5rem;
        }
        .container-main {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 2rem;
            padding-right: 2rem;
        }
        .section-py {
            padding-top: 5.5rem;
            padding-bottom: 5.5rem;
        }
        .section-alt {
            background-color: rgba(17, 24, 32, 0.55);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .text-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
        }
        .border-gradient-brand {
            border: 1px solid transparent;
            background:
                linear-gradient(var(--surface), var(--surface)) padding-box,
                linear-gradient(135deg, rgba(0, 240, 181, 0.5), rgba(0, 194, 255, 0.5)) border-box;
        }
        .card-surface {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card-surface:hover {
            transform: translateY(-4px);
            border-color: var(--line-hover);
            box-shadow: var(--shadow-hover);
        }
        .card-surface-sm {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card-surface-sm:hover {
            transform: translateY(-2px);
            border-color: var(--line-hover);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            color: #0B0F14;
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            border: none;
            cursor: pointer;
            transition: filter 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            box-shadow: 0 8px 24px rgba(0, 240, 181, 0.25);
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-1px);
            box-shadow: 0 12px 32px rgba(0, 240, 181, 0.35);
        }
        .btn-primary:active {
            transform: scale(0.98);
            filter: brightness(0.95);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            cursor: pointer;
            transition: border-color 0.3s ease, color 0.3s ease, background-color 0.3s ease, transform 0.2s ease;
            letter-spacing: 0.01em;
        }
        .btn-secondary:hover {
            border-color: rgba(0, 240, 181, 0.5);
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.05);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .badge-accent {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--accent);
            background: rgba(255, 176, 32, 0.12);
            border: 1px solid rgba(255, 176, 32, 0.3);
        }
        .badge-brand {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.12);
            border: 1px solid rgba(0, 240, 181, 0.3);
        }
        .badge-danger {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--danger);
            background: rgba(255, 77, 109, 0.12);
            border: 1px solid rgba(255, 77, 109, 0.3);
        }
        .nav-link {
            position: relative;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 0.5rem 0.25rem;
            transition: color 0.25s ease;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--brand-1);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
            transition: width 0.3s ease;
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--brand-1);
        }
        .nav-link.active::after {
            width: 100%;
        }
        .nav-dot {
            display: none;
        }
        .header-main {
            position: sticky;
            top: 0;
            z-index: 50;
            height: 76px;
            background: rgba(11, 15, 20, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--line);
            display: flex;
            align-items: center;
        }
        .footer-heading {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .footer-link {
            font-size: 0.8125rem;
            color: var(--text-muted);
            transition: color 0.25s ease;
            display: inline-block;
        }
        .footer-link:hover {
            color: var(--brand-1);
        }
        .mobile-menu-btn {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            border: 1px solid var(--line);
            background: var(--surface);
            color: var(--text);
            transition: border-color 0.3s ease;
        }
        .mobile-menu-btn:hover {
            border-color: var(--line-hover);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 76px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(11, 15, 20, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 49;
            padding: 2rem 1.5rem;
            overflow-y: auto;
            flex-direction: column;
            gap: 0.25rem;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-nav-link {
            display: block;
            padding: 0.875rem 1rem;
            border-radius: 14px;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all 0.25s ease;
        }
        .mobile-nav-link:hover {
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.06);
        }
        .mobile-nav-link.active {
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.08);
            border: 1px solid rgba(0, 240, 181, 0.3);
        }
        .stat-num {
            font-family: 'Inter', 'Barlow', 'IBM Plex Sans', 'PingFang SC', sans-serif;
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            font-size: 1.875rem;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .filter-select {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 14px;
            padding: 0.625rem 1rem;
            font-size: 0.875rem;
            color: var(--text);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
            cursor: pointer;
            min-width: 140px;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238A94A6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 1rem center;
            padding-right: 2.5rem;
        }
        .filter-select:focus-visible {
            border-color: var(--line-hover);
            box-shadow: var(--ring-brand);
        }
        .search-input {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: 14px;
            padding: 0.625rem 1rem 0.625rem 2.75rem;
            font-size: 0.875rem;
            color: var(--text);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
            width: 100%;
            max-width: 240px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238A94A6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'%3E%3C/circle%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'%3E%3C/line%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: left 0.875rem center;
        }
        .search-input:focus-visible {
            border-color: var(--line-hover);
            box-shadow: var(--ring-brand);
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.8125rem;
            color: var(--text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            transition: color 0.25s ease;
        }
        .breadcrumb a:hover {
            color: var(--brand-1);
        }
        .breadcrumb-sep {
            opacity: 0.5;
        }
        .rank-bar {
            height: 8px;
            border-radius: 4px;
            background: var(--surface-2);
            overflow: hidden;
            position: relative;
        }
        .rank-bar-fill {
            height: 100%;
            border-radius: 4px;
            background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
            transition: width 0.6s ease;
        }
        .rank-bar-fill.accent {
            background: linear-gradient(135deg, var(--accent), var(--brand-1));
        }
        .faq-item {
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            background: var(--surface);
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .faq-item:hover {
            border-color: var(--line-hover);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
        }
        .faq-trigger {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            width: 100%;
            padding: 1.25rem 1.5rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text);
            text-align: left;
            cursor: pointer;
            transition: color 0.25s ease;
        }
        .faq-trigger:hover {
            color: var(--brand-1);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.08);
            transition: transform 0.3s ease;
            font-weight: 400;
            line-height: 1;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 1.5rem;
        }
        .faq-item.open .faq-content {
            max-height: 300px;
            padding: 0 1.5rem 1.25rem;
        }
        .faq-content p {
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.75;
            margin: 0;
        }
        .hero-stats-bg {
            background:
                linear-gradient(135deg, rgba(11, 15, 20, 0.92) 0%, rgba(17, 24, 32, 0.78) 55%, rgba(22, 33, 43, 0.65) 100%),
                url('/assets/images/0407330b48df995d.webp') center / cover no-repeat;
        }
        @media (max-width: 1024px) {
            .container-main {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
            .section-py {
                padding-top: 4.5rem;
                padding-bottom: 4.5rem;
            }
            .stat-num {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 768px) {
            .container-main {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .section-py {
                padding-top: 3.5rem;
                padding-bottom: 3.5rem;
            }
            .header-main {
                height: 68px;
            }
            .desktop-nav {
                display: none;
            }
            .mobile-menu-btn {
                display: inline-flex;
            }
            .mobile-drawer {
                top: 68px;
            }
            .stat-num {
                font-size: 1.375rem;
            }
            .filter-row {
                flex-wrap: wrap;
                gap: 0.75rem;
            }
            .filter-select {
                flex: 1 1 calc(50% - 0.5rem);
                min-width: 0;
            }
            .search-input {
                max-width: 100%;
                flex: 1 1 100%;
            }
        }
        @media (max-width: 520px) {
            .section-py {
                padding-top: 3rem;
                padding-bottom: 3rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 0.75rem 1.25rem;
                font-size: 0.875rem;
                width: 100%;
            }
            .stat-num {
                font-size: 1.25rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #0B0F14;
            --surface: #111820;
            --surface-2: #16212B;
            --brand-1: #00F0B5;
            --brand-2: #00C2FF;
            --accent: #FFB020;
            --danger: #FF4D6D;
            --text: #F5F7FA;
            --text-muted: #8A94A6;
            --line: rgba(255, 255, 255, 0.08);
            --line-hover: rgba(0, 240, 181, 0.35);
            --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.45);
            --ring-brand: 0 0 0 4px rgba(0, 240, 181, 0.25);
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --radius-3xl: 1.75rem;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        main {
            flex: 1;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
            background: none;
            border: none;
            outline: none;
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: none;
            box-shadow: var(--ring-brand);
            border-radius: 0.5rem;
        }
        .container-main {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 2rem;
            padding-right: 2rem;
        }
        .section-py {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
        }
        @media (min-width: 768px) {
            .section-py {
                padding-top: 5.5rem;
                padding-bottom: 5.5rem;
            }
        }
        @media (min-width: 1024px) {
            .section-py {
                padding-top: 6.5rem;
                padding-bottom: 6.5rem;
            }
        }
        .section-alt {
            background-color: rgba(17, 24, 32, 0.55);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .text-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
        }
        .border-gradient-brand {
            border: 1px solid transparent;
            background:
                linear-gradient(var(--surface), var(--surface)) padding-box,
                linear-gradient(135deg, rgba(0, 240, 181, 0.5), rgba(0, 194, 255, 0.5)) border-box;
        }
        .card-surface {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card-surface:hover {
            transform: translateY(-4px);
            border-color: var(--line-hover);
            box-shadow: var(--shadow-hover);
        }
        .card-surface-sm {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card-surface-sm:hover {
            transform: translateY(-2px);
            border-color: var(--line-hover);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            color: #0B0F14;
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            border: none;
            cursor: pointer;
            transition: filter 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            box-shadow: 0 8px 24px rgba(0, 240, 181, 0.25);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-1px);
            box-shadow: 0 12px 32px rgba(0, 240, 181, 0.35);
        }
        .btn-primary:active {
            transform: scale(0.98);
            filter: brightness(0.95);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            cursor: pointer;
            transition: border-color 0.3s ease, color 0.3s ease, background-color 0.3s ease, transform 0.2s ease;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            border-color: rgba(0, 240, 181, 0.5);
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.05);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .badge-accent {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.25rem 0.875rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(255, 176, 32, 0.12);
            border: 1px solid rgba(255, 176, 32, 0.25);
            white-space: nowrap;
        }
        .badge-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.25rem 0.875rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.1);
            border: 1px solid rgba(0, 240, 181, 0.25);
            white-space: nowrap;
        }
        .badge-danger {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.25rem 0.875rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--danger);
            background: rgba(255, 77, 109, 0.1);
            border: 1px solid rgba(255, 77, 109, 0.25);
            white-space: nowrap;
        }
        .badge-neutral {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.25rem 0.875rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--line);
            white-space: nowrap;
        }
        .nav-header {
            position: sticky;
            top: 0;
            z-index: 50;
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            background: rgba(11, 15, 20, 0.88);
            border-bottom: 1px solid var(--line);
            height: 72px;
            display: flex;
            align-items: center;
            transition: background-color 0.3s ease, border-color 0.3s ease;
        }
        .nav-header.scrolled {
            background: rgba(11, 15, 20, 0.96);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }
        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 0.5rem 0.25rem;
            transition: color 0.25s ease;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .nav-link:hover {
            color: var(--brand-1);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--brand-1), var(--brand-2));
            border-radius: 9999px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform 0.3s ease;
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            transform: scaleX(1);
        }
        .nav-link.active {
            color: var(--brand-1);
            font-weight: 600;
        }
        .nav-dot {
            display: inline-flex;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--brand-1);
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .nav-link.active .nav-dot {
            opacity: 1;
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: min(320px, 85vw);
            height: 100vh;
            background: var(--surface);
            border-left: 1px solid var(--line);
            z-index: 60;
            transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            overflow-y: auto;
            box-shadow: -20px 0 40px rgba(0, 0, 0, 0.5);
            padding: 1.5rem;
        }
        .mobile-drawer.open {
            right: 0;
        }
        .drawer-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 55;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }
        .drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .footer-heading {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 0.875rem;
            letter-spacing: 0.02em;
        }
        .footer-link {
            font-size: 0.875rem;
            color: var(--text-muted);
            transition: color 0.25s ease;
        }
        .footer-link:hover {
            color: var(--brand-1);
        }
        .faq-item {
            border-bottom: 1px solid var(--line);
            transition: border-color 0.3s ease;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            width: 100%;
            padding: 1.25rem 0;
            text-align: left;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text);
            cursor: pointer;
            transition: color 0.25s ease;
            background: none;
            border: none;
        }
        .faq-question:hover {
            color: var(--brand-1);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid var(--line);
            color: var(--text-muted);
            font-size: 1.25rem;
            transition: transform 0.35s ease, color 0.3s ease, border-color 0.3s ease;
            line-height: 1;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--brand-1);
            border-color: rgba(0, 240, 181, 0.4);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 0 0 0;
            font-size: 0.9375rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 1.25rem;
        }
        .filter-btn {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.5rem 1.25rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--line);
            cursor: pointer;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .filter-btn:hover {
            color: var(--brand-1);
            border-color: rgba(0, 240, 181, 0.4);
            background: rgba(0, 240, 181, 0.06);
        }
        .filter-btn.active {
            color: #0B0F14;
            background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
            border-color: transparent;
            font-weight: 600;
        }
        .form-input {
            width: 100%;
            padding: 0.75rem 1rem;
            border-radius: 0.875rem;
            font-size: 0.9375rem;
            color: var(--text);
            background: var(--surface-2);
            border: 1px solid var(--line);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .form-input::placeholder {
            color: var(--text-muted);
            opacity: 0.7;
        }
        .form-input:focus {
            border-color: rgba(0, 240, 181, 0.4);
            box-shadow: var(--ring-brand);
        }
        .match-score-number {
            font-family: 'Inter', 'Barlow', 'IBM Plex Sans', 'HarmonyOS Sans SC', sans-serif;
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        .breadcrumb-sep {
            color: var(--text-muted);
            font-size: 0.875rem;
            margin: 0 0.5rem;
            user-select: none;
        }
        .trend-bar {
            transition: height 0.6s ease;
            min-height: 8px;
        }
        .scrollbar-hide {
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .scrollbar-hide::-webkit-scrollbar {
            display: none;
        }
        @media (max-width: 767px) {
            .container-main {
                padding-left: 1.25rem;
                padding-right: 1.25rem;
            }
            .nav-header {
                height: 64px;
            }
            .section-py {
                padding-top: 3.5rem;
                padding-bottom: 3.5rem;
            }
        }
        @media (min-width: 768px) and (max-width: 1023px) {
            .container-main {
                padding-left: 1.75rem;
                padding-right: 1.75rem;
            }
        }

/* roulang page: category6 */
:root {
            --bg: #0B0F14;
            --surface: #111820;
            --surface-2: #16212B;
            --brand-1: #00F0B5;
            --brand-2: #00C2FF;
            --accent: #FFB020;
            --danger: #FF4D6D;
            --text: #F5F7FA;
            --text-muted: #8A94A6;
            --line: rgba(255, 255, 255, 0.08);
            --line-hover: rgba(0, 240, 181, 0.35);
            --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.45);
            --ring-brand: 0 0 0 4px rgba(0, 240, 181, 0.25);
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --radius-3xl: 1.75rem;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        main {
            flex: 1;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
            background: none;
            border: none;
            outline: none;
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: none;
            box-shadow: var(--ring-brand);
            border-radius: 0.5rem;
        }
        .container-main {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (min-width: 640px) {
            .container-main {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        .section-py {
            padding-top: 4.5rem;
            padding-bottom: 4.5rem;
        }
        @media (min-width: 768px) {
            .section-py {
                padding-top: 5.5rem;
                padding-bottom: 5.5rem;
            }
        }
        @media (min-width: 1024px) {
            .section-py {
                padding-top: 6.5rem;
                padding-bottom: 6.5rem;
            }
        }
        .section-alt {
            background-color: rgba(17, 24, 32, 0.55);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .text-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
        }
        .border-gradient-brand {
            border: 1px solid transparent;
            background:
                linear-gradient(var(--surface), var(--surface)) padding-box,
                linear-gradient(135deg, rgba(0, 240, 181, 0.5), rgba(0, 194, 255, 0.5)) border-box;
        }
        .card-surface {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card-surface:hover {
            transform: translateY(-4px);
            border-color: var(--line-hover);
            box-shadow: var(--shadow-hover);
        }
        .card-surface-sm {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card-surface-sm:hover {
            transform: translateY(-2px);
            border-color: var(--line-hover);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            color: #0B0F14;
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            border: none;
            cursor: pointer;
            transition: filter 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            box-shadow: 0 8px 24px rgba(0, 240, 181, 0.25);
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-1px);
            box-shadow: 0 12px 32px rgba(0, 240, 181, 0.35);
        }
        .btn-primary:active {
            transform: scale(0.98);
            filter: brightness(0.95);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            cursor: pointer;
            transition: border-color 0.3s ease, color 0.3s ease, background-color 0.3s ease, transform 0.2s ease;
            letter-spacing: 0.01em;
        }
        .btn-secondary:hover {
            border-color: rgba(0, 240, 181, 0.5);
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.05);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .badge-accent {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.3rem 0.8rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.1);
            border: 1px solid rgba(0, 240, 181, 0.25);
        }
        .badge-warn {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.3rem 0.8rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--accent);
            background: rgba(255, 176, 32, 0.1);
            border: 1px solid rgba(255, 176, 32, 0.25);
        }
        .badge-danger {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.3rem 0.8rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--danger);
            background: rgba(255, 77, 109, 0.1);
            border: 1px solid rgba(255, 77, 109, 0.25);
        }
        .badge-info {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.3rem 0.8rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--brand-2);
            background: rgba(0, 194, 255, 0.1);
            border: 1px solid rgba(0, 194, 255, 0.25);
        }
        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 0.55rem 0.15rem;
            transition: color 0.25s ease;
            white-space: nowrap;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
            border-radius: 9999px;
            transition: width 0.3s ease;
        }
        .nav-link:hover {
            color: var(--brand-1);
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--brand-1);
        }
        .nav-link.active::after {
            width: 100%;
        }
        .nav-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 9999px;
            background: var(--brand-1);
            flex-shrink: 0;
        }
        .footer-link {
            color: var(--text-muted);
            font-size: 0.875rem;
            transition: color 0.25s ease;
        }
        .footer-link:hover {
            color: var(--brand-1);
        }
        .footer-heading {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 1rem;
            letter-spacing: 0.02em;
        }
        .filter-select {
            background: var(--surface-2);
            border: 1px solid var(--line);
            border-radius: 0.75rem;
            color: var(--text);
            padding: 0.625rem 1rem;
            font-size: 0.875rem;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            min-width: 140px;
        }
        .filter-select:focus {
            border-color: var(--line-hover);
            box-shadow: var(--ring-brand);
        }
        .filter-input {
            background: var(--surface-2);
            border: 1px solid var(--line);
            border-radius: 0.75rem;
            color: var(--text);
            padding: 0.625rem 1rem;
            font-size: 0.875rem;
            width: 100%;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .filter-input:focus {
            border-color: var(--line-hover);
            box-shadow: var(--ring-brand);
        }
        .filter-input::placeholder {
            color: var(--text-muted);
            opacity: 0.7;
        }
        .tool-icon {
            width: 48px;
            height: 48px;
            border-radius: 0.875rem;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            flex-shrink: 0;
            background: rgba(0, 240, 181, 0.08);
            color: var(--brand-1);
            border: 1px solid rgba(0, 240, 181, 0.2);
        }
        .stat-number {
            font-family: 'Barlow', 'Inter', 'IBM Plex Sans', system-ui, sans-serif;
            font-variant-numeric: tabular-nums;
            font-weight: 700;
            font-size: 2rem;
            line-height: 1.1;
            color: var(--text);
        }
        .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            letter-spacing: 0.03em;
        }
        .breadcrumb-link {
            color: var(--text-muted);
            font-size: 0.875rem;
            transition: color 0.25s ease;
        }
        .breadcrumb-link:hover {
            color: var(--brand-1);
        }
        .breadcrumb-sep {
            color: var(--text-muted);
            font-size: 0.75rem;
            margin: 0 0.4rem;
            opacity: 0.6;
        }
        .faq-item {
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            background: var(--surface);
            overflow: hidden;
            transition: border-color 0.3s ease;
        }
        .faq-item:hover {
            border-color: var(--line-hover);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.125rem 1.375rem;
            font-size: 1rem;
            font-weight: 500;
            color: var(--text);
            text-align: left;
            cursor: pointer;
            transition: color 0.25s ease;
        }
        .faq-question:hover {
            color: var(--brand-1);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.375rem;
            color: var(--text-muted);
            font-size: 0.9375rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 280px;
            padding-bottom: 1.25rem;
            padding-top: 0.25rem;
        }
        .faq-icon {
            font-size: 1rem;
            color: var(--brand-1);
            flex-shrink: 0;
            transition: transform 0.35s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .mobile-menu-overlay {
            position: fixed;
            inset: 0;
            background: rgba(11, 15, 20, 0.96);
            z-index: 60;
            display: flex;
            flex-direction: column;
            padding: 1.5rem;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }
        .mobile-menu-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }
        .mobile-nav-link {
            display: block;
            padding: 0.875rem 0.25rem;
            font-size: 1.125rem;
            font-weight: 500;
            color: var(--text-muted);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: color 0.25s ease;
        }
        .mobile-nav-link:hover {
            color: var(--brand-1);
        }
        .mobile-nav-link.active {
            color: var(--brand-1);
        }
        .subscribe-input {
            background: var(--surface-2);
            border: 1px solid var(--line);
            border-radius: 9999px;
            color: var(--text);
            padding: 0.75rem 1.25rem;
            font-size: 0.875rem;
            width: 100%;
            max-width: 320px;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .subscribe-input:focus {
            border-color: var(--line-hover);
            box-shadow: var(--ring-brand);
        }
        .subscribe-input::placeholder {
            color: var(--text-muted);
            opacity: 0.7;
        }
        @media (max-width: 1023px) {
            .desktop-nav {
                display: none;
            }
            .mobile-menu-btn {
                display: flex;
            }
        }
        @media (min-width: 1024px) {
            .mobile-menu-btn {
                display: none;
            }
        }
        @media (max-width: 640px) {
            .stat-number {
                font-size: 1.5rem;
            }
            .tool-icon {
                width: 40px;
                height: 40px;
                font-size: 1rem;
                border-radius: 0.75rem;
            }
        }

/* roulang page: category5 */
:root {
            --bg: #0B0F14;
            --surface: #111820;
            --surface-2: #16212B;
            --brand-1: #00F0B5;
            --brand-2: #00C2FF;
            --accent: #FFB020;
            --danger: #FF4D6D;
            --text: #F5F7FA;
            --text-muted: #8A94A6;
            --line: rgba(255, 255, 255, 0.08);
            --line-hover: rgba(0, 240, 181, 0.35);
            --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.45);
            --ring-brand: 0 0 0 4px rgba(0, 240, 181, 0.25);
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --radius-3xl: 1.75rem;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        main {
            flex: 1;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
            background: none;
            border: none;
            outline: none;
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: none;
            box-shadow: var(--ring-brand);
            border-radius: 0.5rem;
        }
        .container-main {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (min-width: 640px) {
            .container-main {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container-main {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }
        .section-py {
            padding-top: 4rem;
            padding-bottom: 4rem;
        }
        @media (min-width: 768px) {
            .section-py {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }
        @media (min-width: 1024px) {
            .section-py {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }
        .section-alt {
            background-color: rgba(17, 24, 32, 0.55);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .text-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
        }
        .border-gradient-brand {
            border: 1px solid transparent;
            background:
                linear-gradient(var(--surface), var(--surface)) padding-box,
                linear-gradient(135deg, rgba(0, 240, 181, 0.5), rgba(0, 194, 255, 0.5)) border-box;
        }
        .card-surface {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card-surface:hover {
            transform: translateY(-4px);
            border-color: var(--line-hover);
            box-shadow: var(--shadow-hover);
        }
        .card-surface-sm {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card-surface-sm:hover {
            transform: translateY(-2px);
            border-color: var(--line-hover);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            color: #0B0F14;
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            border: none;
            cursor: pointer;
            transition: filter 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            box-shadow: 0 8px 24px rgba(0, 240, 181, 0.25);
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-1px);
            box-shadow: 0 12px 32px rgba(0, 240, 181, 0.35);
        }
        .btn-primary:active {
            transform: scale(0.98);
            filter: brightness(0.95);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            cursor: pointer;
            transition: border-color 0.3s ease, color 0.3s ease, background-color 0.3s ease, transform 0.2s ease;
            letter-spacing: 0.01em;
        }
        .btn-secondary:hover {
            border-color: rgba(0, 240, 181, 0.5);
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.05);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .badge-brand {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.1);
            border: 1px solid rgba(0, 240, 181, 0.25);
        }
        .badge-accent {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--accent);
            background: rgba(255, 176, 32, 0.1);
            border: 1px solid rgba(255, 176, 32, 0.25);
        }
        .badge-danger {
            display: inline-flex;
            align-items: center;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--danger);
            background: rgba(255, 77, 109, 0.1);
            border: 1px solid rgba(255, 77, 109, 0.25);
        }
        .status-live {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            color: var(--brand-1);
            font-size: 0.8rem;
            font-weight: 500;
        }
        .status-live::before {
            content: '';
            width: 0.5rem;
            height: 0.5rem;
            border-radius: 9999px;
            background: var(--brand-1);
            animation: pulse-dot 1.8s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%, 100% { opacity: 1; transform: scale(1); }
            50% { opacity: 0.4; transform: scale(1.5); }
        }
        .rank-number {
            font-family: 'Barlow', 'Inter', system-ui, sans-serif;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.02em;
        }
        .stat-num {
            font-family: 'Barlow', 'Inter', system-ui, sans-serif;
            font-weight: 700;
            font-variant-numeric: tabular-nums;
            color: var(--text);
            font-size: 1.75rem;
            line-height: 1.2;
        }
        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            font-size: 0.9375rem;
            font-weight: 500;
            color: var(--text-muted);
            padding: 0.5rem 0.25rem;
            transition: color 0.3s ease;
        }
        .nav-link:hover {
            color: var(--text);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            border-radius: 9999px;
            background: linear-gradient(90deg, var(--brand-1), var(--brand-2));
            transition: width 0.3s ease;
        }
        .nav-link:hover::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--brand-1);
        }
        .nav-link.active::after {
            width: 100%;
        }
        .nav-dot {
            display: none;
        }
        .footer-heading {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 1rem;
        }
        .footer-link {
            display: inline-block;
            font-size: 0.875rem;
            color: var(--text-muted);
            transition: color 0.25s ease;
        }
        .footer-link:hover {
            color: var(--brand-1);
        }
        .filter-chip {
            display: inline-flex;
            align-items: center;
            padding: 0.5rem 1.25rem;
            border-radius: 9999px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-muted);
            background: var(--surface);
            border: 1px solid var(--line);
            transition: all 0.3s ease;
            cursor: pointer;
            user-select: none;
        }
        .filter-chip:hover {
            color: var(--text);
            border-color: rgba(255, 255, 255, 0.2);
        }
        .filter-chip.active {
            color: #0B0F14;
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            border-color: transparent;
            font-weight: 600;
        }
        .trend-bar {
            height: 6px;
            border-radius: 9999px;
            background: rgba(255, 255, 255, 0.08);
            overflow: hidden;
        }
        .trend-bar-fill {
            height: 100%;
            border-radius: 9999px;
            background: linear-gradient(90deg, var(--brand-1), var(--brand-2));
            transition: width 1s ease;
        }
        .trend-bar-fill.accent {
            background: linear-gradient(90deg, var(--accent), #FF6B35);
        }
        .trend-bar-fill.danger {
            background: linear-gradient(90deg, var(--danger), #FF8FA3);
        }
        .rank-row {
            display: grid;
            grid-template-columns: 3.5rem 1fr 2fr 1.5fr;
            gap: 1rem;
            align-items: center;
            padding: 1.1rem 1.25rem;
            border-radius: var(--radius-xl);
            background: var(--surface);
            border: 1px solid var(--line);
            transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .rank-row:hover {
            transform: translateY(-2px);
            border-color: var(--line-hover);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
        }
        .rank-row.top3 {
            background: linear-gradient(135deg, rgba(0, 240, 181, 0.06), rgba(0, 194, 255, 0.06));
            border-color: rgba(0, 240, 181, 0.2);
        }
        .rank-position {
            font-family: 'Barlow', 'Inter', system-ui, sans-serif;
            font-weight: 700;
            font-size: 1.5rem;
            font-variant-numeric: tabular-nums;
            color: var(--text-muted);
            text-align: center;
        }
        .rank-position.top-1 {
            color: var(--accent);
            font-size: 1.75rem;
        }
        .rank-position.top-2 {
            color: #C0C8D4;
        }
        .rank-position.top-3 {
            color: #CD9A5B;
        }
        .rank-change-up {
            color: var(--brand-1);
            font-weight: 600;
            font-size: 0.85rem;
        }
        .rank-change-down {
            color: var(--danger);
            font-weight: 600;
            font-size: 0.85rem;
        }
        .rank-change-flat {
            color: var(--text-muted);
            font-size: 0.85rem;
        }
        .breadcrumb-link {
            font-size: 0.875rem;
            color: var(--text-muted);
            transition: color 0.25s ease;
        }
        .breadcrumb-link:hover {
            color: var(--brand-1);
        }
        .breadcrumb-sep {
            font-size: 0.875rem;
            color: var(--text-muted);
            margin: 0 0.375rem;
        }
        .faq-item {
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            background: var(--surface);
            margin-bottom: 0.75rem;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }
        .faq-item:hover {
            border-color: rgba(255, 255, 255, 0.16);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            font-size: 1rem;
            color: var(--text);
            background: transparent;
            text-align: left;
            gap: 1rem;
            transition: color 0.25s ease;
        }
        .faq-question:hover {
            color: var(--brand-1);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 1.75rem;
            height: 1.75rem;
            border-radius: 9999px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.05);
            transition: transform 0.3s ease, color 0.3s ease, background 0.3s ease;
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 1.5rem;
            color: var(--text-muted);
            font-size: 0.9375rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-bottom: 1.5rem;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.1);
        }
        .subscribe-input {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 9999px;
            padding: 0.5rem 0.5rem 0.5rem 1.25rem;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        .subscribe-input:focus-within {
            border-color: rgba(0, 240, 181, 0.5);
            box-shadow: var(--ring-brand);
        }
        .subscribe-input input {
            flex: 1;
            font-size: 0.9375rem;
            color: var(--text);
            background: transparent;
            min-width: 0;
        }
        .subscribe-input input::placeholder {
            color: var(--text-muted);
        }
        @media (max-width: 767px) {
            .rank-row {
                grid-template-columns: 2.5rem 1fr 1.5fr;
                gap: 0.75rem;
                padding: 0.875rem 1rem;
                font-size: 0.875rem;
            }
            .rank-position {
                font-size: 1.2rem;
            }
            .rank-position.top-1 {
                font-size: 1.35rem;
            }
            .rank-row > *:nth-child(4) {
                grid-column: span 2;
                justify-self: end;
            }
        }
        @media (max-width: 520px) {
            .rank-row {
                grid-template-columns: 2rem 1fr;
                gap: 0.5rem;
            }
            .rank-row > *:nth-child(3),
            .rank-row > *:nth-child(4) {
                grid-column: span 1;
                justify-self: start;
            }
            .rank-position {
                font-size: 1.1rem;
            }
        }

/* roulang page: category4 */
:root {
            --bg: #0B0F14;
            --surface: #111820;
            --surface-2: #16212B;
            --brand-1: #00F0B5;
            --brand-2: #00C2FF;
            --accent: #FFB020;
            --danger: #FF4D6D;
            --text: #F5F7FA;
            --text-muted: #8A94A6;
            --line: rgba(255, 255, 255, 0.08);
            --line-hover: rgba(0, 240, 181, 0.35);
            --shadow-card: 0 20px 40px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 24px 48px rgba(0, 0, 0, 0.45);
            --ring-brand: 0 0 0 4px rgba(0, 240, 181, 0.25);
            --radius-xl: 1.25rem;
            --radius-2xl: 1.5rem;
            --radius-3xl: 1.75rem;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei', system-ui, sans-serif;
            font-size: 16px;
            line-height: 1.65;
            color: var(--text);
            background-color: var(--bg);
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        main {
            flex: 1;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            color: inherit;
            background: none;
            border: none;
            outline: none;
            cursor: pointer;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible,
        textarea:focus-visible,
        select:focus-visible {
            outline: none;
            box-shadow: var(--ring-brand);
            border-radius: 0.5rem;
        }
        .container-main {
            max-width: 80rem;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
        @media (min-width: 640px) {
            .container-main {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }
        @media (min-width: 1024px) {
            .container-main {
                padding-left: 2.5rem;
                padding-right: 2.5rem;
            }
        }
        .section-py {
            padding-top: 3.5rem;
            padding-bottom: 3.5rem;
        }
        @media (min-width: 768px) {
            .section-py {
                padding-top: 5rem;
                padding-bottom: 5rem;
            }
        }
        @media (min-width: 1024px) {
            .section-py {
                padding-top: 6rem;
                padding-bottom: 6rem;
            }
        }
        .section-alt {
            background-color: rgba(17, 24, 32, 0.55);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .text-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .bg-gradient-brand {
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
        }
        .border-gradient-brand {
            border: 1px solid transparent;
            background:
                linear-gradient(var(--surface), var(--surface)) padding-box,
                linear-gradient(135deg, rgba(0, 240, 181, 0.5), rgba(0, 194, 255, 0.5)) border-box;
        }
        .card-surface {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-2xl);
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card-surface:hover {
            transform: translateY(-4px);
            border-color: var(--line-hover);
            box-shadow: var(--shadow-hover);
        }
        .card-surface-sm {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.25);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card-surface-sm:hover {
            transform: translateY(-2px);
            border-color: var(--line-hover);
            box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 600;
            font-size: 0.95rem;
            color: #0B0F14;
            background: linear-gradient(135deg, var(--brand-1) 0%, var(--brand-2) 100%);
            border: none;
            cursor: pointer;
            transition: filter 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
            box-shadow: 0 8px 24px rgba(0, 240, 181, 0.25);
            letter-spacing: 0.01em;
        }
        .btn-primary:hover {
            filter: brightness(1.08);
            transform: translateY(-1px);
            box-shadow: 0 12px 32px rgba(0, 240, 181, 0.35);
        }
        .btn-primary:active {
            transform: scale(0.98);
            filter: brightness(0.95);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 1.75rem;
            border-radius: 9999px;
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.18);
            cursor: pointer;
            transition: border-color 0.3s ease, color 0.3s ease, background-color 0.3s ease, transform 0.2s ease;
            letter-spacing: 0.01em;
        }
        .btn-secondary:hover {
            border-color: rgba(0, 240, 181, 0.5);
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.05);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }
        .badge-accent {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--accent);
            background: rgba(255, 176, 32, 0.1);
            border: 1px solid rgba(255, 176, 32, 0.25);
        }
        .badge-brand {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--brand-1);
            background: rgba(0, 240, 181, 0.1);
            border: 1px solid rgba(0, 240, 181, 0.25);
        }
        .badge-danger {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--danger);
            background: rgba(255, 77, 109, 0.1);
            border: 1px solid rgba(255, 77, 109, 0.25);
        }
        .badge-muted {
            display: inline-flex;
            align-items: center;
            gap: 0.375rem;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--line);
        }
        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            position: relative;
            padding: 0.5rem 0.1rem;
            transition: color 0.25s ease;
        }
        .nav-link:hover {
            color: var(--brand-1);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -4px;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--brand-1), var(--brand-2));
            border-radius: 2px;
            transition: width 0.3s ease;
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--brand-1);
            font-weight: 600;
        }
        .nav-dot {
            display: inline-block;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--brand-1);
            margin-right: 0.4rem;
            vertical-align: middle;
            box-shadow: 0 0 12px rgba(0, 240, 181, 0.6);
        }
        .header-main {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(11, 15, 20, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
            height: 76px;
            display: flex;
            align-items: center;
        }
        @media (max-width: 1023px) {
            .header-main {
                height: 68px;
            }
        }
        .mobile-menu-btn {
            display: flex;
            flex-direction: column;
            gap: 5px;
            width: 28px;
            height: 28px;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            border-radius: 0.5rem;
            transition: background-color 0.2s ease;
        }
        .mobile-menu-btn:hover {
            background: rgba(255, 255, 255, 0.05);
        }
        .mobile-menu-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: transform 0.3s ease, background-color 0.3s ease;
        }
        .mobile-menu-btn.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .mobile-menu-btn.open span:nth-child(2) {
            opacity: 0;
        }
        .mobile-menu-btn.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-drawer {
            position: fixed;
            inset: 0;
            z-index: 40;
            background: rgba(11, 15, 20, 0.97);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            display: none;
            flex-direction: column;
            padding: 5rem 2rem 2rem;
            gap: 0.5rem;
        }
        .mobile-drawer.open {
            display: flex;
        }
        .mobile-drawer a {
            font-size: 1.25rem;
            padding: 0.75rem 0;
            border-bottom: 1px solid var(--line);
            color: var(--text);
        }
        .mobile-drawer a.active-mobile {
            color: var(--brand-1);
            font-weight: 600;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.5rem;
            font-size: 0.875rem;
            color: var(--text-muted);
        }
        .breadcrumb-nav a:hover {
            color: var(--brand-1);
        }
        .breadcrumb-sep {
            color: rgba(255, 255, 255, 0.2);
        }
        .breadcrumb-current {
            color: var(--brand-1);
            font-weight: 500;
        }
        .filter-select {
            background: var(--surface-2);
            border: 1px solid var(--line);
            border-radius: 0.75rem;
            padding: 0.5rem 1rem;
            font-size: 0.875rem;
            color: var(--text);
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238A94A6' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 0.75rem center;
            padding-right: 2.5rem;
        }
        .filter-select:hover {
            border-color: rgba(0, 240, 181, 0.4);
        }
        .filter-select:focus {
            border-color: var(--brand-1);
            box-shadow: var(--ring-brand);
        }
        .filter-input {
            background: var(--surface-2);
            border: 1px solid var(--line);
            border-radius: 0.75rem;
            padding: 0.5rem 1rem;
            font-size: 0.875rem;
            color: var(--text);
            width: 100%;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }
        .filter-input::placeholder {
            color: var(--text-muted);
            opacity: 0.7;
        }
        .filter-input:hover {
            border-color: rgba(0, 240, 181, 0.4);
        }
        .filter-input:focus {
            border-color: var(--brand-1);
            box-shadow: var(--ring-brand);
        }
        .news-card-large {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-2xl);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .news-card-large:hover {
            transform: translateY(-4px);
            border-color: var(--line-hover);
            box-shadow: var(--shadow-hover);
        }
        .news-card-large .news-image {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--surface-2);
        }
        .news-card-large .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card-large:hover .news-image img {
            transform: scale(1.04);
        }
        .news-list-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-xl);
            padding: 1.25rem 1.5rem;
            transition: border-color 0.3s ease, background-color 0.3s ease, transform 0.2s ease;
        }
        .news-list-item:hover {
            border-color: var(--line-hover);
            background: var(--surface-2);
            transform: translateX(2px);
        }
        .news-list-item .news-date {
            font-size: 0.8rem;
            color: var(--brand-1);
            font-weight: 500;
            min-width: 6rem;
        }
        .news-list-item .news-title {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.5;
        }
        .news-list-item .news-title:hover {
            color: var(--brand-1);
        }
        .news-list-item .news-excerpt {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .stat-badge {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            padding: 1.25rem 1rem;
            border-radius: var(--radius-xl);
            background: var(--surface);
            border: 1px solid var(--line);
            transition: border-color 0.3s ease;
        }
        .stat-badge:hover {
            border-color: rgba(0, 240, 181, 0.35);
        }
        .stat-badge .stat-number {
            font-size: 1.75rem;
            font-weight: 700;
            font-family: 'Inter', 'Barlow', 'IBM Plex Sans', sans-serif;
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            color: var(--brand-1);
        }
        .stat-badge .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 0.4rem;
        }
        .editor-card {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-2xl);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            box-shadow: var(--shadow-card);
        }
        .editor-card:hover {
            transform: translateY(-4px);
            border-color: var(--line-hover);
            box-shadow: var(--shadow-hover);
        }
        .editor-card .editor-image {
            aspect-ratio: 4/3;
            overflow: hidden;
            background: var(--surface-2);
        }
        .editor-card .editor-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .editor-card:hover .editor-image img {
            transform: scale(1.04);
        }
        .faq-item {
            border-bottom: 1px solid var(--line);
            transition: border-color 0.3s ease;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.25rem 0;
            cursor: pointer;
            font-weight: 500;
            font-size: 1rem;
            color: var(--text);
            text-align: left;
            width: 100%;
            transition: color 0.25s ease;
        }
        .faq-question:hover {
            color: var(--brand-1);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(0, 240, 181, 0.08);
            border: 1px solid rgba(0, 240, 181, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: var(--brand-1);
            transition: transform 0.3s ease, background-color 0.3s ease;
        }
        .faq-question.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(0, 240, 181, 0.2);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0;
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .faq-answer.show {
            max-height: 300px;
            padding: 0 0 1.25rem 0;
        }
        .subscribe-box {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-2xl);
            padding: 2rem;
            box-shadow: var(--shadow-card);
        }
        .footer-heading {
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--text);
            margin-bottom: 1rem;
        }
        .footer-link {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: color 0.25s ease;
        }
        .footer-link:hover {
            color: var(--brand-1);
        }
        @media (max-width: 640px) {
            .news-list-item .news-date {
                min-width: auto;
                margin-bottom: 0.25rem;
            }
            .stat-badge .stat-number {
                font-size: 1.5rem;
            }
            .subscribe-box {
                padding: 1.5rem;
            }
        }