/* roulang page: index */
:root {
            --bg-primary: #0B0E0C;
            --bg-surface: #121713;
            --bg-surface-lighter: #1A211C;
            --brand-primary: #4CD9B0;
            --brand-primary-light: #6FE8C4;
            --brand-accent: #C8A87E;
            --text-primary: #EFF4F0;
            --text-secondary: #9BA6A0;
            --border-color: rgba(232, 242, 236, 0.08);
            --error: #E56B5A;
            --success: #4CD9B0;
            --warning: #D7A64A;
            --radius-card: 16px;
            --radius-large: 20px;
            --radius-pill: 999px;
            --radius-input: 12px;
            --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.04), 0 12px 40px rgba(0, 0, 0, 0.4);
            --transition: 200ms ease-out;
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 100px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

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

        input,
        textarea {
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        .container {
            max-width: 1192px;
            margin: 0 auto;
            padding: 0 16px;
        }

        .site-header {
            position: fixed;
            top: 12px;
            left: 0;
            right: 0;
            z-index: 100;
            display: flex;
            justify-content: center;
            padding: 0 16px;
            pointer-events: none;
            transition: all var(--transition);
        }

        .nav-container {
            max-width: 1192px;
            width: 100%;
            background: rgba(11, 14, 12, 0.72);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-pill);
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 8px 8px 8px 24px;
            pointer-events: auto;
            transition: background var(--transition), box-shadow var(--transition);
        }

        .site-header.scrolled .nav-container {
            background: rgba(11, 14, 12, 0.9);
            box-shadow: 0 8px 48px rgba(0, 0, 0, 0.55);
        }

        .nav-logo {
            font-size: 1.15rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-logo .logo-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-primary);
            display: inline-block;
            box-shadow: 0 0 12px rgba(76, 217, 176, 0.5);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 16px;
        }

        .nav-links a {
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 0.02em;
            color: var(--text-secondary);
            padding: 8px 16px;
            border-radius: 999px;
            position: relative;
            transition: color var(--transition), background var(--transition);
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--brand-primary);
            background: rgba(76, 217, 176, 0.08);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            border-radius: 2px;
            background: var(--brand-primary);
        }

        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: #0B0E0C;
            background: var(--brand-primary);
            padding: 8px 20px;
            border-radius: 999px;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
            white-space: nowrap;
        }

        .btn-nav:hover {
            background: var(--brand-primary-light);
            box-shadow: 0 0 24px rgba(76, 217, 176, 0.35);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 12px;
            border-radius: 12px;
            background: transparent;
        }

        .nav-toggle span {
            width: 22px;
            height: 2px;
            border-radius: 2px;
            background: var(--text-primary);
            transition: transform var(--transition), opacity var(--transition);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            padding: 120px 0 80px;
        }

        .hero-background {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            z-index: 0;
        }

        .hero-background::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(76, 217, 176, 0.12) 0%, transparent 60%),
                radial-gradient(ellipse at 80% 20%, rgba(200, 168, 126, 0.06) 0%, transparent 50%),
                linear-gradient(180deg, rgba(11, 14, 12, 0.6) 0%, rgba(11, 14, 12, 0.8) 100%);
        }

        .hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 860px;
        }

        .hero h1 {
            font-size: clamp(2.5rem, 6vw, 4.5rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 24px;
            opacity: 0;
            animation: fadeInUp 0.8s ease-out forwards;
        }

        .hero-subtitle {
            font-size: clamp(1.05rem, 2vw, 1.35rem);
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 40px;
            line-height: 1.6;
            opacity: 0;
            animation: fadeInUp 0.8s ease-out 0.15s forwards;
        }

        .hero-cta {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            opacity: 0;
            animation: fadeInUp 0.8s ease-out 0.3s forwards;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1rem;
            font-weight: 600;
            color: #0B0E0C;
            background: var(--brand-primary);
            padding: 14px 36px;
            border-radius: 999px;
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
        }

        .btn-primary:hover {
            background: var(--brand-primary-light);
            box-shadow: 0 0 32px rgba(76, 217, 176, 0.4);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 16px rgba(76, 217, 176, 0.3);
        }

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

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 13px 36px;
            border-radius: 999px;
            transition: border-color var(--transition), color var(--transition), background var(--transition), transform var(--transition);
        }

        .btn-outline:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: rgba(76, 217, 176, 0.06);
            transform: translateY(-2px);
        }

        .hero-scroll {
            display: inline-flex;
            margin-top: 64px;
            color: var(--text-secondary);
            animation: pulseDown 2s ease-in-out infinite;
        }

        .hero-scroll svg {
            width: 28px;
            height: 28px;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes pulseDown {
            0%,
            100% {
                transform: translateY(0);
                opacity: 0.7;
            }
            50% {
                transform: translateY(8px);
                opacity: 1;
            }
        }

        .section-header {
            max-width: 680px;
            margin-bottom: 48px;
        }

        .section-header .section-tag {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--brand-accent);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            display: block;
            margin-bottom: 8px;
        }

        .section-header h2 {
            font-size: clamp(1.75rem, 3.5vw, 2.25rem);
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }

        .section-header p {
            color: var(--text-secondary);
            margin-top: 12px;
            font-size: 1rem;
        }

        .directory {
            padding: 100px 0 80px;
        }

        .directory .section-header {
            margin-bottom: 36px;
        }

        .directory-list {
            display: flex;
            flex-direction: column;
            border-top: 1px solid var(--border-color);
        }

        .directory-item {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 28px 12px;
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition), padding-left var(--transition);
        }

        .directory-item:hover {
            background: rgba(76, 217, 176, 0.04);
            padding-left: 20px;
        }

        .directory-num {
            font-family: var(--font-mono);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--brand-accent);
            min-width: 56px;
        }

        .directory-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            min-width: 120px;
        }

        .directory-desc {
            flex: 1;
            color: var(--text-secondary);
            font-size: 0.95rem;
        }

        .directory-arrow {
            font-size: 1.2rem;
            color: var(--text-secondary);
            transition: transform var(--transition), color var(--transition);
        }

        .directory-item:hover .directory-arrow {
            transform: translateX(6px);
            color: var(--brand-primary);
        }

        .featured {
            padding: 40px 0 100px;
        }

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

        .featured-card {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
        }

        .featured-card:hover {
            transform: translateY(-4px);
            border-color: rgba(76, 217, 176, 0.4);
            box-shadow: var(--shadow-card);
        }

        .featured-card .card-cover {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            position: relative;
        }

        .featured-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease-out;
        }

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

        .featured-card .card-body {
            padding: 20px 24px 24px;
        }

        .card-badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--brand-primary);
            background: rgba(76, 217, 176, 0.1);
            border: 1px solid rgba(76, 217, 176, 0.2);
            padding: 3px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .featured-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .featured-card .card-desc {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.65;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--brand-primary);
        }

        .card-link::after {
            content: '→';
            transition: transform var(--transition);
        }

        .card-link:hover::after {
            transform: translateX(4px);
        }

        .recommend {
            padding: 0 0 100px;
        }

        .recommend-scroll {
            display: flex;
            gap: 16px;
            overflow-x: auto;
            padding-bottom: 12px;
            scroll-snap-type: x mandatory;
            scrollbar-width: thin;
            scrollbar-color: rgba(76, 217, 176, 0.3) transparent;
        }

        .recommend-scroll::-webkit-scrollbar {
            height: 6px;
        }

        .recommend-scroll::-webkit-scrollbar-thumb {
            background: rgba(76, 217, 176, 0.3);
            border-radius: 3px;
        }

        .recommend-card {
            flex: 0 0 280px;
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 12px;
            transition: border-color var(--transition), transform var(--transition), background var(--transition);
            scroll-snap-align: start;
        }

        .recommend-card:hover {
            border-color: rgba(76, 217, 176, 0.4);
            transform: translateY(-2px);
            background: var(--bg-surface-lighter);
        }

        .recommend-card .thumb {
            width: 80px;
            height: 80px;
            border-radius: 12px;
            overflow: hidden;
            flex-shrink: 0;
        }

        .recommend-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease-out;
        }

        .recommend-card:hover .thumb img {
            transform: scale(1.08);
        }

        .recommend-card .rec-info {
            flex: 1;
            min-width: 0;
        }

        .recommend-card .rec-cat {
            font-size: 11px;
            font-weight: 600;
            color: var(--brand-accent);
            text-transform: uppercase;
            letter-spacing: 0.04em;
            margin-bottom: 4px;
            display: block;
        }

        .recommend-card h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .cta-share {
            padding: 80px 0;
            background: linear-gradient(135deg, rgba(76, 217, 176, 0.06) 0%, rgba(18, 23, 19, 0.9) 100%);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }

        .cta-share .container {
            text-align: center;
        }

        .cta-share h2 {
            font-size: clamp(1.6rem, 3vw, 2rem);
            margin-bottom: 12px;
        }

        .cta-share p {
            color: var(--text-secondary);
            margin-bottom: 32px;
            max-width: 460px;
            margin-left: auto;
            margin-right: auto;
        }

        .share-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .share-icons {
            display: flex;
            gap: 12px;
        }

        .share-icons a {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            transition: all var(--transition);
        }

        .share-icons a:hover {
            border-color: var(--brand-primary);
            color: var(--brand-primary);
            background: rgba(76, 217, 176, 0.08);
            transform: translateY(-2px);
        }

        .latest {
            padding: 100px 0;
        }

        .latest-list {
            display: flex;
            flex-direction: column;
            border-top: 1px solid var(--border-color);
        }

        .latest-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 12px;
            border-bottom: 1px solid var(--border-color);
            transition: background var(--transition), padding-left var(--transition);
        }

        .latest-item:hover {
            background: rgba(76, 217, 176, 0.03);
            padding-left: 18px;
        }

        .latest-date {
            font-family: var(--font-mono);
            font-size: 13px;
            color: var(--brand-accent);
            min-width: 110px;
            flex-shrink: 0;
        }

        .latest-title {
            flex: 1;
            font-size: 0.98rem;
            font-weight: 500;
            color: var(--text-primary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .latest-cat {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-secondary);
            background: var(--bg-surface-lighter);
            padding: 4px 14px;
            border-radius: 999px;
            flex-shrink: 0;
            border: 1px solid var(--border-color);
        }

        .empty-state {
            text-align: center;
            padding: 60px 0;
            color: var(--text-secondary);
            font-size: 0.95rem;
            border-bottom: 1px solid var(--border-color);
        }

        .faq {
            padding: 0 0 100px;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 780px;
        }

        .faq-item {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: border-color var(--transition), background var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(76, 217, 176, 0.3);
        }

        .faq-item.open {
            border-color: rgba(76, 217, 176, 0.4);
            background: var(--bg-surface-lighter);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            gap: 16px;
            transition: color var(--transition);
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: var(--brand-primary);
            flex-shrink: 0;
            transition: transform var(--transition), background var(--transition);
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(76, 217, 176, 0.1);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease-out;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        .site-footer {
            background: #070908;
            border-top: 1px solid var(--border-color);
            padding: 64px 0 32px;
        }

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

        .footer-brand .footer-logo {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .footer-logo .logo-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--brand-primary);
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.88rem;
            margin-top: 12px;
            max-width: 260px;
            line-height: 1.6;
        }

        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: var(--text-secondary);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: color var(--transition), padding-left var(--transition);
        }

        .footer-col a:hover {
            color: var(--brand-primary);
            padding-left: 4px;
        }

        .footer-disclaimer {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            margin-bottom: 16px;
        }

        .footer-disclaimer p {
            color: var(--text-secondary);
            font-size: 13px;
            line-height: 1.6;
            max-width: 100%;
        }

        .footer-copyright {
            border-top: 1px solid var(--border-color);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 8px;
            color: var(--text-secondary);
            font-size: 13px;
            font-family: var(--font-mono);
        }

        .footer-copyright a {
            color: var(--text-secondary);
        }

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

        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

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

            .hero-background {
                background-attachment: scroll;
            }
        }

        @media (max-width: 1024px) {
            .featured-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .nav-links a {
                padding: 8px 12px;
                font-size: 13px;
            }
        }

        @media (max-width: 767px) {
            .nav-links {
                position: fixed;
                top: 0;
                right: 0;
                bottom: 0;
                width: min(320px, 85vw);
                flex-direction: column;
                background: rgba(11, 14, 12, 0.98);
                backdrop-filter: blur(20px);
                padding: 80px 24px 32px;
                justify-content: flex-start;
                align-items: stretch;
                transform: translateX(100%);
                transition: transform 0.3s ease-out;
                margin: 0;
                border-left: 1px solid var(--border-color);
                box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5);
            }

            .nav-links.open {
                transform: translateX(0);
            }

            .nav-links a {
                font-size: 1.05rem;
                padding: 16px 8px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
                border-radius: 0;
                color: var(--text-secondary);
            }

            .nav-links a:hover,
            .nav-links a.active {
                color: var(--brand-primary);
                background: transparent;
            }

            .nav-links a.active::after {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .btn-nav {
                display: none;
            }

            .hero {
                min-height: 75vh;
                padding: 100px 0 60px;
            }

            .hero h1 {
                font-size: clamp(1.8rem, 8vw, 2.5rem);
            }

            .hero-subtitle {
                font-size: 1rem;
                padding: 0 16px;
            }

            .hero-cta {
                flex-direction: column;
                align-items: center;
            }

            .btn-primary,
            .btn-outline {
                width: min(280px, 100%);
                justify-content: center;
            }

            .hero-scroll {
                margin-top: 40px;
            }

            .directory {
                padding: 60px 0 40px;
            }

            .directory-item {
                flex-wrap: wrap;
                gap: 8px;
                padding: 20px 8px;
            }

            .directory-num {
                min-width: 44px;
                font-size: 1.2rem;
            }

            .directory-title {
                min-width: 0;
                flex: 1;
            }

            .directory-desc {
                flex-basis: 100%;
                padding-left: 52px;
                font-size: 0.88rem;
            }

            .featured {
                padding: 20px 0 60px;
            }

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

            .recommend {
                padding-bottom: 60px;
            }

            .cta-share {
                padding: 60px 0;
            }

            .latest {
                padding: 60px 0;
            }

            .latest-item {
                flex-wrap: wrap;
                gap: 6px;
                padding: 16px 8px;
            }

            .latest-date {
                min-width: 0;
                width: 100%;
                font-size: 12px;
            }

            .latest-title {
                flex-basis: 100%;
                white-space: normal;
                font-size: 0.95rem;
                line-height: 1.4;
            }

            .faq {
                padding-bottom: 60px;
            }

            .site-footer {
                padding: 48px 0 24px;
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-copyright {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 520px) {
            .nav-container {
                padding-left: 18px;
            }

            .nav-logo {
                font-size: 1rem;
            }

            .recommend-card {
                flex: 0 0 240px;
            }

            .recommend-card .thumb {
                width: 64px;
                height: 64px;
            }

            .card-body {
                padding: 16px;
            }

            .section-header h2 {
                font-size: 1.5rem;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #0B0E0C;
            --surface: #121713;
            --surface-hover: #1A211C;
            --primary: #4CD9B0;
            --accent: #C8A87E;
            --text: #EFF4F0;
            --text-dim: #9BA6A0;
            --border: rgba(232, 242, 236, 0.08);
            --border-strong: rgba(232, 242, 236, 0.14);
            --radius: 16px;
            --radius-lg: 20px;
            --radius-pill: 999px;
            --shadow: 0 1px 0 rgba(255, 255, 255, 0.04), 0 12px 40px rgba(0, 0, 0, 0.4);
            --transition: 240ms ease-out;
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        ul {
            list-style: none;
        }

        .container {
            max-width: 1192px;
            margin: 0 auto;
            padding: 0 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border: 1px solid transparent;
            transition: all var(--transition);
            min-height: 46px;
            white-space: nowrap;
        }

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

        .btn-primary {
            background: var(--primary);
            color: #0B0E0C;
            box-shadow: 0 0 0 0 rgba(76, 217, 176, 0);
        }

        .btn-primary:hover {
            background: #6BE5C2;
            box-shadow: 0 0 28px rgba(76, 217, 176, 0.3);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-outline {
            background: transparent;
            border-color: var(--border-strong);
            color: var(--text);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }

        .btn-outline:active {
            transform: translateY(0);
        }

        .section {
            padding: 80px 0;
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-title {
            font-size: clamp(1.75rem, 3vw, 2.25rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-bottom: 10px;
        }

        .section-subtitle {
            color: var(--text-dim);
            font-size: 16px;
            max-width: 560px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 12px;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0 16px;
            pointer-events: none;
        }

        .nav-container {
            max-width: 1192px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(11, 14, 12, 0.72);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-pill);
            padding: 8px 16px;
            box-shadow: var(--shadow);
            pointer-events: auto;
            transition: background var(--transition), border-color var(--transition);
        }

        .site-header.scrolled .nav-container {
            background: rgba(11, 14, 12, 0.92);
            border-color: rgba(255, 255, 255, 0.2);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text);
        }

        .logo-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 12px rgba(76, 217, 176, 0.6);
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
        }

        .nav-links a {
            position: relative;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dim);
            letter-spacing: 0.02em;
            padding: 6px 0;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: width var(--transition);
        }

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

        .nav-links a.active {
            color: var(--text);
        }

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

        .btn-nav {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #0B0E0C;
            font-size: 14px;
            font-weight: 600;
            padding: 8px 22px;
            border-radius: var(--radius-pill);
            transition: all var(--transition);
            min-height: 38px;
        }

        .btn-nav:hover {
            background: #6BE5C2;
            box-shadow: 0 0 20px rgba(76, 217, 176, 0.35);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Hero ===== */
        .hero-category {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            padding: 160px 0 80px;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(76, 217, 176, 0.15) 0%, transparent 65%),
                linear-gradient(180deg, rgba(11, 14, 12, 0.82) 0%, rgba(11, 14, 12, 0.92) 100%);
        }

        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 840px;
        }

        .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-dim);
            margin-bottom: 18px;
        }

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

        .hero-breadcrumb span {
            color: var(--border-strong);
        }

        .hero-title {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.15;
            margin-bottom: 18px;
        }

        .hero-title .highlight {
            color: var(--primary);
        }

        .hero-subtitle {
            font-size: 17px;
            color: var(--text-dim);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* ===== Intro ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .intro-copy p {
            color: var(--text-dim);
            font-size: 16px;
            line-height: 1.9;
            margin-bottom: 16px;
        }

        .intro-copy p:last-child {
            margin-bottom: 0;
        }

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

        .stat-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: border-color var(--transition), transform var(--transition);
        }

        .stat-item:hover {
            border-color: rgba(76, 217, 176, 0.4);
            transform: translateY(-3px);
        }

        .stat-num {
            font-family: var(--font-mono);
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            display: block;
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-dim);
            letter-spacing: 0.03em;
        }

        /* ===== Featured ===== */
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }

        .featured-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
        }

        .featured-card:hover {
            transform: translateY(-4px);
            border-color: rgba(76, 217, 176, 0.4);
            box-shadow: var(--shadow);
        }

        .card-media {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
        }

        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 500ms ease;
        }

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

        .card-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(11, 14, 12, 0.85);
            color: var(--primary);
            border: 1px solid rgba(76, 217, 176, 0.4);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .card-body {
            padding: 24px;
        }

        .card-title {
            font-size: 1.25rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .card-text {
            color: var(--text-dim);
            font-size: 14.5px;
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        .card-tag {
            font-size: 13px;
            color: var(--accent);
            font-family: var(--font-mono);
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dim);
            transition: color var(--transition), gap var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .card-link:hover {
            color: var(--primary);
            gap: 8px;
        }

        /* ===== Recommend ===== */
        .recommend-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .recommend-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 16px;
            display: flex;
            align-items: center;
            gap: 16px;
            transition: border-color var(--transition), transform var(--transition), background var(--transition);
        }

        .recommend-card:hover {
            border-color: rgba(76, 217, 176, 0.35);
            background: var(--surface-hover);
            transform: translateY(-3px);
        }

        .rec-thumb {
            width: 80px;
            height: 80px;
            border-radius: 12px;
            overflow: hidden;
            flex-shrink: 0;
        }

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

        .recommend-card:hover .rec-thumb img {
            transform: scale(1.08);
        }

        .rec-info {
            min-width: 0;
        }

        .rec-tag {
            font-size: 12px;
            color: var(--accent);
            font-family: var(--font-mono);
            letter-spacing: 0.04em;
            display: block;
            margin-bottom: 4px;
        }

        .rec-title {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(76, 217, 176, 0.3);
        }

        .faq-item.open {
            border-color: rgba(76, 217, 176, 0.5);
        }

        .faq-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            background: none;
            border: none;
            cursor: pointer;
            transition: background var(--transition);
        }

        .faq-title:hover {
            background: rgba(76, 217, 176, 0.04);
        }

        .faq-title:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: -2px;
            border-radius: var(--radius);
        }

        .faq-icon {
            position: relative;
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--primary);
            border-radius: 2px;
            transition: all var(--transition);
        }

        .faq-icon::before {
            top: 9px;
            left: 0;
            width: 20px;
            height: 2px;
        }

        .faq-icon::after {
            top: 0;
            left: 9px;
            width: 2px;
            height: 20px;
        }

        .faq-item.open .faq-icon::after {
            transform: rotate(90deg);
            opacity: 0;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease-out, padding 300ms ease-out;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 24px 22px;
        }

        .faq-answer p {
            color: var(--text-dim);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--surface), var(--bg));
            border-top: 1px solid var(--border);
            padding: 90px 0;
            text-align: center;
        }

        .cta-inner {
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-title {
            font-size: clamp(1.75rem, 4vw, 2.5rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .cta-text {
            color: var(--text-dim);
            font-size: 16px;
            line-height: 1.75;
            margin-bottom: 32px;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #080A09;
            border-top: 1px solid var(--border);
            padding: 64px 0 24px;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: -0.01em;
            color: var(--text);
            margin-bottom: 14px;
        }

        .footer-brand p {
            color: var(--text-dim);
            font-size: 14.5px;
            line-height: 1.75;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col a {
            display: block;
            color: var(--text-dim);
            font-size: 14px;
            line-height: 2.2;
            transition: color var(--transition);
        }

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

        .footer-disclaimer {
            border-top: 1px solid var(--border);
            padding: 24px 0;
            margin-bottom: 12px;
        }

        .footer-disclaimer p {
            color: #6B756F;
            font-size: 13px;
            line-height: 1.7;
            text-align: center;
        }

        .footer-copyright {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            color: #5A645E;
            font-size: 13px;
            border-top: 1px solid rgba(232, 242, 236, 0.04);
            padding-top: 20px;
        }

        .footer-copyright a {
            color: #5A645E;
            transition: color var(--transition);
        }

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

        /* ===== Scroll reveal ===== */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 600ms ease-out, transform 600ms ease-out;
        }

        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation: none !important;
                scroll-behavior: auto !important;
                transition-duration: 0.01ms !important;
            }

            .reveal {
                opacity: 1;
                transform: none;
            }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .recommend-row {
                grid-template-columns: repeat(2, 1fr);
            }

            .intro-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .hero-category {
                min-height: 380px;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 60px 0;
            }

            .nav-links {
                position: fixed;
                top: 76px;
                left: 16px;
                right: 16px;
                background: rgba(11, 14, 12, 0.96);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                border: 1px solid var(--border-strong);
                border-radius: var(--radius-lg);
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                padding: 20px;
                box-shadow: var(--shadow);
                opacity: 0;
                visibility: hidden;
                transform: translateY(-12px);
                transition: all var(--transition);
                z-index: 999;
            }

            .nav-links.open {
                opacity: 1;
                visibility: visible;
                transform: translateY(0);
            }

            .nav-links a {
                width: 100%;
                font-size: 16px;
                padding: 12px 0;
                border-bottom: 1px solid rgba(232, 242, 236, 0.05);
            }

            .nav-links a:last-child {
                border-bottom: none;
            }

            .nav-links a::after {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .btn-nav {
                display: none;
            }

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

            .recommend-row {
                grid-template-columns: 1fr;
            }

            .hero-category {
                min-height: 360px;
                background-attachment: scroll;
                padding: 140px 0 60px;
            }

            .hero-title {
                font-size: clamp(2rem, 9vw, 2.8rem);
            }

            .footer-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 520px) {
            .intro-stats {
                grid-template-columns: 1fr;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .cta-actions .btn {
                width: 100%;
            }

            .card-body {
                padding: 20px;
            }

            .footer-copyright {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: article */
:root {
    --bg: #0B0E0C;
    --surface: #121713;
    --surface-2: #1A211C;
    --primary: #4CD9B0;
    --primary-hover: #6FE5C4;
    --accent: #C8A87E;
    --text: #EFF4F0;
    --text-2: #9BA6A0;
    --border: rgba(232, 242, 236, 0.08);
    --border-hover: rgba(76, 217, 176, 0.4);
    --radius: 16px;
    --radius-lg: 20px;
    --radius-pill: 999px;
    --shadow: 0 1px 0 rgba(255,255,255,0.04), 0 12px 40px rgba(0,0,0,0.4);
    --transition: all 0.25s ease-out;
    --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas;
    --container: 1192px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

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

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 16px;
}

.container.narrow {
    max-width: 780px;
}

/* ===== 导航 ===== */
.site-header {
    position: fixed;
    top: 12px;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 16px;
    display: flex;
    justify-content: center;
    pointer-events: none;
}

.nav-container {
    max-width: 1192px;
    width: 100%;
    background: rgba(11, 14, 12, 0.72);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-pill);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 18px 10px 24px;
    transition: var(--transition);
    pointer-events: auto;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

.site-header.scrolled .nav-container {
    background: rgba(11, 14, 12, 0.92);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
    border-color: rgba(76, 217, 176, 0.2);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: var(--text);
    white-space: nowrap;
}

.logo-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 12px rgba(76, 217, 176, 0.6);
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
}

.nav-links li a {
    display: block;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-2);
    border-radius: var(--radius-pill);
    letter-spacing: 0.02em;
    position: relative;
}

.nav-links li a:hover {
    color: var(--primary);
    background: rgba(76, 217, 176, 0.08);
}

.nav-links li a.active {
    color: var(--primary);
    background: rgba(76, 217, 176, 0.12);
}

.nav-links li a.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
}

.btn-nav {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 22px;
    font-size: 0.9rem;
    font-weight: 700;
    color: #0B0E0C;
    background: var(--primary);
    border-radius: var(--radius-pill);
    transition: var(--transition);
    white-space: nowrap;
}

.btn-nav:hover {
    background: var(--primary-hover);
    box-shadow: 0 0 20px rgba(76, 217, 176, 0.35);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    align-items: center;
    background: transparent;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== 面包屑 ===== */
.breadcrumb {
    padding: 120px 0 0;
    font-size: 0.85rem;
    color: var(--text-2);
}

.breadcrumb .container {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--text-2);
    transition: var(--transition);
}

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

.breadcrumb .sep {
    color: rgba(255, 255, 255, 0.25);
}

.breadcrumb .current {
    color: var(--text);
    max-width: 260px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ===== 文章头部 ===== */
.article-header {
    padding: 40px 0 24px;
    position: relative;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 5px 14px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(76, 217, 176, 0.1);
    border: 1px solid rgba(76, 217, 176, 0.25);
    border-radius: var(--radius-pill);
    letter-spacing: 0.04em;
}

.meta-date {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
}

.meta-read {
    font-size: 0.85rem;
    color: var(--text-2);
}

.article-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.article-excerpt {
    font-size: 1.05rem;
    color: var(--text-2);
    line-height: 1.8;
    max-width: 720px;
    margin-bottom: 28px;
}

.article-cover {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    margin-bottom: 12px;
}

.article-cover img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 7;
    object-fit: cover;
}

/* ===== 文章正文 ===== */
.article-content {
    padding: 0 0 60px;
}

.article-body {
    font-size: 1.02rem;
    line-height: 1.9;
    color: var(--text);
}

.article-body h2 {
    font-size: 1.65rem;
    font-weight: 700;
    margin-top: 2.2em;
    margin-bottom: 0.8em;
    letter-spacing: -0.01em;
    padding-bottom: 0.4em;
    border-bottom: 1px solid var(--border);
    position: relative;
}

.article-body h2::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 48px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

.article-body h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-top: 1.8em;
    margin-bottom: 0.6em;
    letter-spacing: -0.01em;
}

.article-body p {
    margin-bottom: 1.5em;
}

.article-body ul,
.article-body ol {
    margin-bottom: 1.5em;
    padding-left: 1.5em;
}

.article-body ul li,
.article-body ol li {
    margin-bottom: 0.5em;
}

.article-body ul li::marker {
    color: var(--primary);
}

.article-body blockquote {
    border-left: 3px solid var(--primary);
    background: var(--surface);
    padding: 1em 1.5em;
    border-radius: 0 var(--radius) var(--radius) 0;
    margin-bottom: 1.5em;
    color: var(--text-2);
}

.article-body img {
    border-radius: var(--radius);
    margin: 1.8em 0;
    border: 1px solid var(--border);
}

.article-body a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

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

.article-body code {
    font-family: var(--font-mono);
    background: var(--surface-2);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 0.92em;
    color: var(--primary);
}

.article-body pre {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    overflow-x: auto;
    margin-bottom: 1.5em;
}

.article-body pre code {
    background: none;
    padding: 0;
    color: var(--text);
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5em;
}

.article-body th,
.article-body td {
    padding: 12px 16px;
    border: 1px solid var(--border);
    text-align: left;
}

.article-body th {
    background: var(--surface);
    font-weight: 600;
    color: var(--primary);
}

/* ===== 空状态 ===== */
.article-empty {
    text-align: center;
    padding: 100px 20px 80px;
    max-width: 480px;
    margin: 0 auto;
}

.article-empty-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--surface);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    border: 1px solid var(--border);
    font-size: 2rem;
}

.article-empty h2 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.article-empty p {
    color: var(--text-2);
    margin-bottom: 24px;
}

/* ===== 相关推荐 ===== */
.related-posts {
    padding: 80px 0;
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-head {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 40px;
}

.section-index {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.02em;
}

.section-head h2 {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.01em;
}

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

.related-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    display: block;
}

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

.related-thumb {
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.related-thumb img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    transition: transform 0.4s ease-out;
}

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

.related-info {
    padding: 20px;
}

.related-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.related-info p {
    font-size: 0.9rem;
    color: var(--text-2);
    line-height: 1.6;
    margin-bottom: 14px;
}

.related-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.82rem;
    color: var(--text-2);
}

.related-meta .badge {
    font-size: 0.75rem;
    padding: 3px 12px;
}

.related-link-arrow {
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 1rem;
    transition: transform 0.25s ease;
}

.related-card:hover .related-link-arrow {
    transform: translateX(4px);
}

/* ===== FAQ ===== */
.faq-section {
    padding: 80px 0;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 780px;
    margin: 0 auto;
}

.faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

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

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 20px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    text-align: left;
    background: transparent;
    transition: var(--transition);
}

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

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

.faq-item.open .faq-icon {
    transform: rotate(45deg);
    border-color: var(--primary);
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease-out;
}

.faq-answer-inner {
    padding: 0 24px 20px;
    color: var(--text-2);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
    padding: 70px 0;
    background: var(--surface);
    border-top: 1px solid var(--border);
}

.cta-inner {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-inner h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}

.cta-inner p {
    color: var(--text-2);
    margin-bottom: 30px;
    font-size: 1rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 0.95rem;
    font-weight: 700;
    border-radius: var(--radius-pill);
    transition: var(--transition);
    min-height: 44px;
    letter-spacing: 0.02em;
}

.btn-primary {
    background: var(--primary);
    color: #0B0E0C;
}

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 0 24px rgba(76, 217, 176, 0.35);
    transform: translateY(-2px);
}

.btn-outline {
    border: 1px solid var(--border);
    color: var(--text);
    background: transparent;
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn:focus-visible,
.nav-toggle:focus-visible,
.faq-question:focus-visible,
.nav-links li a:focus-visible,
.btn-nav:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ===== 页脚 ===== */
.site-footer {
    background: #080A08;
    border-top: 1px solid var(--border);
    padding: 60px 0 0;
}

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

.footer-brand p {
    margin-top: 16px;
    font-size: 0.9rem;
    color: var(--text-2);
    line-height: 1.7;
    max-width: 360px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text);
}

.footer-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    color: var(--text-2);
    font-size: 0.88rem;
    padding: 5px 0;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--primary);
    transform: translateX(3px);
}

.footer-disclaimer {
    border-top: 1px solid var(--border);
    padding: 20px 0;
}

.footer-disclaimer p {
    font-size: 0.82rem;
    color: rgba(155, 166, 160, 0.7);
    line-height: 1.7;
    text-align: center;
}

.footer-copyright {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0 32px;
    font-size: 0.85rem;
    color: var(--text-2);
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 10px;
}

.footer-copyright a {
    color: var(--text-2);
    transition: var(--transition);
}

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

/* ===== 滚动渐显 ===== */
.fade-up {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    * {
        transition: none !important;
        animation: none !important;
    }
    .fade-up {
        opacity: 1;
        transform: none;
    }
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .article-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 16px;
        right: 16px;
        background: var(--surface-2);
        border-radius: var(--radius-lg);
        padding: 16px;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        border: 1px solid var(--border);
        display: none;
        box-shadow: var(--shadow);
        z-index: 999;
    }
    .nav-links.open {
        display: flex;
    }
    .nav-links li a {
        padding: 12px 16px;
        border-radius: var(--radius);
        font-size: 1rem;
    }
    .nav-toggle {
        display: flex;
    }
    .btn-nav {
        display: none;
    }
    .nav-container {
        padding: 8px 10px 8px 18px;
    }
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 28px;
    }
    .footer-brand p {
        max-width: 100%;
    }
    .footer-copyright {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .article-cover img {
        aspect-ratio: 16 / 9;
    }
    .breadcrumb {
        padding-top: 96px;
    }
}

@media (max-width: 520px) {
    .related-grid {
        grid-template-columns: 1fr;
    }
    .article-title {
        font-size: 1.65rem;
    }
    .article-excerpt {
        font-size: 0.95rem;
    }
    .section-head h2 {
        font-size: 1.4rem;
    }
    .cta-inner h2 {
        font-size: 1.5rem;
    }
    .article-body {
        font-size: 0.95rem;
    }
    .article-body h2 {
        font-size: 1.4rem;
    }
    .cta-buttons {
        flex-direction: column;
    }
    .btn {
        width: 100%;
    }
    .footer-copyright span {
        font-size: 0.78rem;
    }
}

/* roulang page: category2 */
:root{
  --bg:#0B0E0C;
  --surface:#121713;
  --surface-hover:#1A211C;
  --primary:#4CD9B0;
  --gold:#C8A87E;
  --text:#EFF4F0;
  --text-muted:#9BA6A0;
  --border:rgba(232,242,236,0.08);
  --radius-sm:12px;
  --radius-md:16px;
  --radius-lg:20px;
  --shadow:0 1px 0 rgba(255,255,255,0.04),0 12px 40px rgba(0,0,0,0.4);
  --transition:240ms ease-out;
  --container:1192px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}

/* ===== Header ===== */
.site-header{
  position:fixed;
  top:14px;left:0;right:0;z-index:1000;
  display:flex;justify-content:center;
  padding:0 16px;
  pointer-events:none;
}
.nav-container{
  pointer-events:auto;
  display:flex;align-items:center;justify-content:space-between;
  width:100%;max-width:var(--container);
  background:rgba(11,14,12,0.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,0.10);
  border-radius:999px;
  padding:8px 10px 8px 20px;
  box-shadow:0 8px 32px rgba(0,0,0,0.45);
  transition:background var(--transition),border-color var(--transition);
}
.site-header.scrolled .nav-container{
  background:rgba(11,14,12,0.92);
  border-color:rgba(76,217,176,0.24);
}
.nav-logo{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:800;letter-spacing:-0.01em;
  color:var(--text);white-space:nowrap;
}
.logo-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 3px rgba(76,217,176,0.18),0 0 16px rgba(76,217,176,0.4);
  flex-shrink:0;
}
.nav-links{
  display:flex;align-items:center;gap:28px;
}
.nav-links a{
  font-size:14px;font-weight:500;color:var(--text-muted);
  letter-spacing:0.02em;
  padding:6px 2px;position:relative;
  transition:color var(--transition);
}
.nav-links a:hover{color:var(--primary)}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--transition);
}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--primary)}
.nav-links a.active::after{transform:scaleX(1)}
.btn-nav{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);color:#0B0E0C;
  font-size:14px;font-weight:700;
  padding:9px 22px;border-radius:999px;
  transition:background var(--transition),box-shadow var(--transition),transform var(--transition);
  white-space:nowrap;
}
.btn-nav:hover{background:#5ee6be;box-shadow:0 0 24px rgba(76,217,176,0.35);transform:translateY(-1px)}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border-radius:50%;
  align-items:center;
}
.nav-toggle span{
  display:block;width:20px;height:2px;background:var(--text);
  border-radius:2px;transition:all 300ms ease;
}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Hero ===== */
.page-hero{
  position:relative;
  min-height:56vh;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
  padding:140px 0 80px;
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  z-index:0;
}
.hero-overlay{
  position:absolute;inset:0;
  background:radial-gradient(ellipse at 30% 40%,rgba(76,217,176,0.10) 0%,rgba(11,14,12,0.88) 70%);
  z-index:1;
}
.hero-content{
  position:relative;z-index:2;
  text-align:center;max-width:760px;
}
.hero-badge{
  display:inline-block;
  font-size:13px;font-weight:600;letter-spacing:0.12em;
  color:var(--gold);text-transform:uppercase;
  border:1px solid rgba(200,168,126,0.35);
  padding:6px 18px;border-radius:999px;
  margin-bottom:22px;
  background:rgba(200,168,126,0.08);
}
.hero-content h1{
  font-size:clamp(2.2rem,5vw,3.6rem);
  font-weight:800;letter-spacing:-0.02em;
  line-height:1.2;margin-bottom:18px;
}
.hero-content h1 .accent{
  color:var(--primary);
}
.hero-content p{
  font-size:17px;color:var(--text-muted);
  max-width:560px;margin:0 auto;
}

/* ===== Section Common ===== */
.section-block{padding:88px 0;position:relative}
.section-header{
  text-align:center;margin-bottom:52px;
}
.section-header .section-tag{
  display:inline-block;font-size:13px;font-weight:600;
  color:var(--primary);letter-spacing:0.1em;
  text-transform:uppercase;margin-bottom:10px;
}
.section-header h2{
  font-size:clamp(1.75rem,3vw,2.25rem);
  font-weight:700;letter-spacing:-0.015em;
  line-height:1.3;margin-bottom:12px;
}
.section-header p{
  color:var(--text-muted);max-width:600px;margin:0 auto;
}

/* ===== Intro ===== */
.category-intro{
  padding:84px 0 40px;
  border-bottom:1px solid var(--border);
}
.intro-grid{
  display:grid;grid-template-columns:1.2fr 0.8fr;gap:56px;
  align-items:center;
}
.intro-text h2{
  font-size:2rem;font-weight:700;letter-spacing:-0.015em;
  margin-bottom:16px;
}
.intro-text .highlight{
  color:var(--primary);
}
.intro-text p{
  color:var(--text-muted);font-size:15px;
  line-height:1.85;
}
.intro-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
}
.stat-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:22px 12px;text-align:center;
  transition:border-color var(--transition),transform var(--transition);
}
.stat-item:hover{
  border-color:rgba(76,217,176,0.4);transform:translateY(-3px);
}
.stat-num{
  display:block;
  font-family:ui-monospace,"SF Mono","Cascadia Code",Consolas,monospace;
  font-size:2.2rem;font-weight:700;color:var(--gold);
  line-height:1.2;
}
.stat-label{
  display:block;font-size:13px;color:var(--text-muted);margin-top:6px;
}

/* ===== Timeline ===== */
.timeline-section{
  padding:88px 0;
  background:linear-gradient(180deg,transparent,rgba(76,217,176,0.02),transparent);
}
.timeline{
  position:relative;
  max-width:860px;margin:0 auto;
  padding-left:24px;
}
.timeline::before{
  content:"";
  position:absolute;left:12px;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(76,217,176,0.1),transparent);
}
.timeline-item{
  position:relative;
  display:flex;
  gap:28px;
  margin-bottom:36px;
}
.timeline-item:last-child{margin-bottom:0}
.timeline-dot{
  position:absolute;left:-20px;top:28px;
  width:10px;height:10px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(76,217,176,0.16);
  flex-shrink:0;
}
.timeline-date{
  flex-shrink:0;width:76px;
  font-family:ui-monospace,"SF Mono","Cascadia Code",Consolas,monospace;
  font-size:13px;font-weight:700;color:var(--gold);
  padding-top:8px;letter-spacing:0.04em;
}
.timeline-card{
  flex:1;
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:24px;
  transition:border-color var(--transition),transform var(--transition),box-shadow var(--transition);
}
.timeline-card:hover{
  border-color:rgba(76,217,176,0.4);
  transform:translateY(-3px);
  box-shadow:var(--shadow);
}
.timeline-card-top{
  display:flex;align-items:center;gap:12px;margin-bottom:12px;
}
.timeline-card h3{
  font-size:17px;font-weight:700;letter-spacing:-0.01em;
  margin-bottom:8px;
}
.timeline-card p{
  font-size:14px;color:var(--text-muted);line-height:1.7;
  margin-bottom:14px;
}
.timeline-card-link{
  align-self:flex-start;
  font-size:14px;font-weight:600;color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;
  transition:gap var(--transition);
}
.timeline-card-link:hover{gap:10px}
.timeline-card-link svg{width:14px;height:14px}

/* ===== Badge ===== */
.badge{
  display:inline-block;
  font-size:12px;font-weight:600;
  padding:3px 12px;border-radius:999px;
  background:rgba(76,217,176,0.12);
  color:var(--primary);
  letter-spacing:0.02em;
}
.badge.gold{
  background:rgba(200,168,126,0.12);
  color:var(--gold);
}
.badge.outline{
  background:transparent;
  border:1px solid var(--border);
  color:var(--text-muted);
}

/* ===== Info Strip ===== */
.info-strip{
  padding:56px 0;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.info-strip-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.info-strip-item{
  display:flex;align-items:flex-start;gap:16px;
  padding:20px;
  border-radius:var(--radius-md);
  transition:background var(--transition);
}
.info-strip-item:hover{background:var(--surface)}
.info-strip-icon{
  width:44px;height:44px;border-radius:12px;
  background:rgba(76,217,176,0.1);
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
  color:var(--primary);
}
.info-strip-icon svg{width:22px;height:22px}
.info-strip-text h4{font-size:15px;font-weight:700;margin-bottom:4px}
.info-strip-text p{font-size:13px;color:var(--text-muted);line-height:1.6}

/* ===== FAQ ===== */
.faq-section{
  padding:88px 0;
}
.faq-list{
  max-width:760px;margin:0 auto;
}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color var(--transition);
}
.faq-item:hover{border-color:rgba(76,217,176,0.3)}
.faq-item.active{border-color:rgba(76,217,176,0.5)}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;
  font-size:15px;font-weight:600;
  text-align:left;color:var(--text);
  transition:color var(--transition);
}
.faq-item.active .faq-question{color:var(--primary)}
.faq-question .faq-icon{
  position:relative;width:22px;height:22px;flex-shrink:0;
  margin-left:16px;
}
.faq-question .faq-icon::before,
.faq-question .faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;
  width:14px;height:2px;background:var(--text-muted);
  transform:translate(-50%,-50%);
  transition:all var(--transition);
}
.faq-question .faq-icon::after{
  transform:translate(-50%,-50%) rotate(90deg);
}
.faq-item.active .faq-icon::before{background:var(--primary)}
.faq-item.active .faq-icon::after{
  background:var(--primary);
  transform:translate(-50%,-50%) rotate(0deg);
}
.faq-answer{
  max-height:0;overflow:hidden;
  transition:max-height 300ms ease;
}
.faq-answer p{
  padding:0 24px 22px;
  font-size:14px;color:var(--text-muted);
  line-height:1.75;
  border-top:1px solid var(--border);
  margin:0 24px 0;
  padding-top:16px;
}
.faq-item.active .faq-answer{
  max-height:320px;
}

/* ===== CTA ===== */
.cta-section{
  padding:96px 0;
  position:relative;
  overflow:hidden;
  text-align:center;
}
.cta-section::before{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(ellipse at center,rgba(76,217,176,0.08) 0%,transparent 70%);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:1;
  max-width:640px;margin:0 auto;
}
.cta-inner h2{
  font-size:clamp(1.9rem,3.5vw,2.5rem);
  font-weight:800;letter-spacing:-0.02em;line-height:1.3;
  margin-bottom:16px;
}
.cta-inner h2 .accent{color:var(--primary)}
.cta-inner p{
  color:var(--text-muted);font-size:16px;
  margin-bottom:34px;
}
.cta-buttons{
  display:flex;justify-content:center;gap:16px;flex-wrap:wrap;
}
.btn-primary,.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 34px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:0.01em;
  transition:all var(--transition);
  min-height:48px;
}
.btn-primary{
  background:var(--primary);color:#0B0E0C;
  box-shadow:0 4px 24px rgba(76,217,176,0.25);
}
.btn-primary:hover{
  background:#5ee6be;
  box-shadow:0 6px 32px rgba(76,217,176,0.4);
  transform:translateY(-2px);
}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus-visible{
  outline:2px solid var(--primary);outline-offset:3px;
}
.btn-secondary{
  background:transparent;color:var(--text);
  border:1px solid rgba(232,242,236,0.22);
}
.btn-secondary:hover{
  border-color:var(--primary);color:var(--primary);
  transform:translateY(-2px);
}
.btn-secondary:focus-visible{
  outline:2px solid var(--primary);outline-offset:3px;
}

/* ===== Footer ===== */
.site-footer{
  background:#080A09;
  border-top:1px solid var(--border);
  padding:64px 0 32px;
}
.footer-inner{
  display:grid;grid-template-columns:1.2fr 0.8fr 0.8fr;
  gap:48px;margin-bottom:40px;
}
.footer-logo{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:800;
  margin-bottom:14px;
}
.footer-brand p{
  font-size:14px;color:var(--text-muted);
  line-height:1.7;max-width:320px;
}
.footer-col h4{
  font-size:15px;font-weight:700;
  margin-bottom:16px;
  color:var(--text);
}
.footer-col a{
  display:block;
  font-size:14px;color:var(--text-muted);
  padding:5px 0;
  transition:color var(--transition),transform var(--transition);
}
.footer-col a:hover{
  color:var(--primary);
  transform:translateX(4px);
}
.footer-disclaimer{
  border-top:1px solid var(--border);
  padding:22px 0;
  margin-bottom:20px;
}
.footer-disclaimer p{
  font-size:13px;color:rgba(155,166,160,0.7);
  line-height:1.7;
}
.footer-copyright{
  display:flex;justify-content:space-between;align-items:center;
  font-size:13px;color:var(--text-muted);
  border-top:1px solid var(--border);
  padding-top:20px;
  flex-wrap:wrap;gap:12px;
}
.footer-copyright a{
  color:var(--text-muted);
  transition:color var(--transition);
}
.footer-copyright a:hover{color:var(--primary)}

/* ===== Scroll Top ===== */
.scroll-top{
  position:fixed;bottom:30px;right:30px;
  width:48px;height:48px;border-radius:50%;
  background:var(--surface-hover);
  border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
  box-shadow:var(--shadow);
  opacity:0;visibility:hidden;
  transform:translateY(16px);
  transition:all var(--transition);
  z-index:999;
}
.scroll-top.show{
  opacity:1;visibility:visible;transform:translateY(0);
}
.scroll-top:hover{
  border-color:var(--primary);
  box-shadow:0 0 24px rgba(76,217,176,0.2);
}
.scroll-top svg{width:20px;height:20px}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .intro-grid{grid-template-columns:1fr;gap:40px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .nav-links{
    position:fixed;
    top:74px;left:16px;right:16px;
    flex-direction:column;
    background:rgba(11,14,12,0.96);
    backdrop-filter:blur(20px);
    border:1px solid var(--border);
    border-radius:20px;
    padding:20px;
    gap:6px;
    transform:translateY(-16px);
    opacity:0;visibility:hidden;
    transition:all 300ms ease;
    box-shadow:0 20px 60px rgba(0,0,0,0.5);
  }
  .nav-links.open{
    transform:translateY(0);
    opacity:1;visibility:visible;
  }
  .nav-links a{
    display:block;padding:12px 16px;
    border-radius:12px;
    font-size:15px;
  }
  .nav-links a:hover{background:rgba(76,217,176,0.08)}
  .nav-links a.active{background:rgba(76,217,176,0.12)}
  .nav-links a::after{display:none}
  .nav-toggle{display:flex}
  .btn-nav{display:none}
  .page-hero{min-height:50vh;padding:120px 0 60px}
  .hero-content h1{font-size:clamp(1.9rem,5vw,2.6rem)}
  .hero-content p{font-size:15px;padding:0 12px}
  .section-block{padding:64px 0}
  .category-intro{padding:64px 0 32px}
  .timeline-section{padding:64px 0}
  .timeline{padding-left:16px}
  .timeline::before{left:7px}
  .timeline-item{flex-direction:column;gap:12px;padding-left:0}
  .timeline-dot{left:-20px;top:6px}
  .timeline-date{width:auto;padding-top:0;font-size:12px}
  .timeline-card{padding:18px}
  .info-strip-grid{grid-template-columns:1fr;gap:8px}
  .footer-inner{grid-template-columns:1fr;gap:28px}
  .footer-copyright{flex-direction:column;text-align:center;justify-content:center}
  .cta-buttons{flex-direction:column;align-items:center}
  .btn-primary,.btn-secondary{width:100%;max-width:300px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero-content h1{letter-spacing:-0.01em}
  .intro-stats{grid-template-columns:repeat(3,1fr);gap:8px}
  .stat-item{padding:16px 8px}
  .stat-num{font-size:1.6rem}
  .footer-col a{font-size:14px}
  .scroll-top{bottom:20px;right:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}