/* roulang page: index */
:root {
            --primary: #2E6BE6;
            --primary-dark: #1F56C4;
            --primary-light: #F0F5FF;
            --accent: #D4001C;
            --accent-dark: #A80016;
            --gold: #C6A15B;
            --bg: #F5F8FC;
            --card: #FFFFFF;
            --text: #1C2B3A;
            --text-sub: #5B6B7C;
            --text-weak: #8A97A6;
            --line: #E6ECF3;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-pill: 999px;
            --shadow: 0 2px 8px rgba(30, 50, 80, 0.06);
            --shadow-hover: 0 8px 24px rgba(30, 50, 80, 0.10);
            --maxw: 1200px;
            --space: 88px;
            --transition: 0.2s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "Inter", "Roboto", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
            color: var(--text);
            background: var(--bg);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        ::selection {
            background: rgba(46, 107, 230, 0.15);
        }

        a {
            color: inherit;
            text-decoration: none;
        }

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

        button,
        input {
            font: inherit;
            border: none;
            outline: none;
        }

        ul {
            list-style: none;
        }

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

        .container {
            max-width: var(--maxw);
            margin: 0 auto;
            padding: 0 28px;
        }

        .section {
            padding: var(--space) 0;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 36px;
        }

        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.06em;
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        .section-head h2 {
            font-size: 30px;
            line-height: 1.35;
            font-weight: 700;
            letter-spacing: -0.01em;
        }

        .section-head .sub {
            color: var(--text-sub);
            font-size: 15px;
            margin-top: 8px;
            max-width: 520px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            transition: var(--transition);
            white-space: nowrap;
        }

        .text-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        .text-link .arrow {
            font-size: 16px;
            line-height: 1;
            transition: var(--transition);
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--line);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-badge {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent) 50%, #1C2B3A 50%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #fff;
            font-size: 14px;
            box-shadow: 0 0 0 2px #fff, 0 2px 6px rgba(30, 50, 80, 0.1);
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 16px;
            font-weight: 700;
            letter-spacing: -0.01em;
            white-space: nowrap;
            color: var(--text);
        }

        .brand-text .brand-red {
            color: var(--accent);
        }

        .brand-short {
            display: none;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2px;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            height: 38px;
            padding: 0 14px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            position: relative;
            transition: var(--transition);
        }

        .main-nav a:hover {
            color: var(--text);
            background: var(--primary-light);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 3px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 200px;
            height: 38px;
            padding: 0 14px;
            background: #F0F4FA;
            border-radius: var(--radius-pill);
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .search-box:focus-within {
            width: 230px;
            background: #fff;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.12);
        }

        .search-box i {
            color: var(--text-weak);
            font-size: 13px;
        }

        .search-box input {
            flex: 1;
            background: transparent;
            border: none;
            font-size: 13px;
            color: var(--text);
            min-width: 0;
        }

        .search-box input::placeholder {
            color: var(--text-weak);
        }

        .search-kbd {
            margin-left: auto;
            font-size: 11px;
            color: var(--text-weak);
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 5px;
            padding: 2px 5px;
            font-weight: 600;
        }

        .header-fav {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: #fff;
            border: 1px solid var(--line);
            color: var(--text-sub);
            cursor: pointer;
            transition: var(--transition);
        }

        .header-fav:hover {
            color: var(--accent);
            border-color: var(--accent);
        }

        .header-fav.active {
            color: #fff;
            background: var(--accent);
            border-color: var(--accent);
        }

        .header-cta {
            height: 38px;
            padding: 0 18px;
            border-radius: var(--radius-md);
            background: var(--primary);
            color: #fff !important;
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
            cursor: pointer;
        }

        .header-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: #fff;
            border: 1px solid var(--line);
            color: var(--text);
            cursor: pointer;
            font-size: 16px;
            align-items: center;
            justify-content: center;
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 64px;
            right: 0;
            width: 280px;
            background: #fff;
            border-left: 1px solid var(--line);
            height: calc(100vh - 64px);
            padding: 24px;
            box-shadow: var(--shadow-hover);
            transform: translateX(100%);
            transition: transform 0.3s ease;
            z-index: 99;
        }

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

        .mobile-menu a {
            display: block;
            padding: 12px 14px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
        }

        .mobile-menu a.active {
            color: var(--primary);
            background: var(--primary-light);
        }

        .mobile-menu .menu-meta {
            margin-top: 16px;
            border-top: 1px solid var(--line);
            padding-top: 16px;
        }

        /* Hero */
        .hero {
            position: relative;
            overflow: hidden;
            background: var(--bg);
        }

        .hero::before {
            content: "";
            position: absolute;
            top: -180px;
            left: -120px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(46, 107, 230, 0.05);
            pointer-events: none;
        }

        .hero-inner {
            display: grid;
            grid-template-columns: 6fr 5fr;
            gap: 56px;
            align-items: center;
            padding: 72px 0 64px;
            position: relative;
        }

        .hero-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-pill);
            padding: 6px 14px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 20px;
            box-shadow: var(--shadow);
        }

        .hero-label .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #22C55E;
            box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
        }

        .hero h1 {
            font-size: 40px;
            line-height: 1.3;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .hero h1 .highlight {
            color: var(--accent);
        }

        .hero-desc {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.75;
            max-width: 480px;
            margin-bottom: 28px;
        }

        .hero-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 16px rgba(46, 107, 230, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(46, 107, 230, 0.28);
        }

        .btn-secondary {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-secondary:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }

        .hero-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border-radius: 6px;
            background: #fff;
            border: 1px solid var(--line);
            font-size: 12px;
            font-weight: 500;
            color: var(--text-sub);
        }

        .hero-visual {
            position: relative;
        }

        .hero-visual img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        .hero-card {
            position: absolute;
            left: -28px;
            bottom: 26px;
            background: #fff;
            border-radius: 14px;
            box-shadow: var(--shadow-hover);
            padding: 14px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            max-width: 260px;
        }

        .hero-card .card-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            flex-shrink: 0;
        }

        .hero-card .card-title {
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 2px;
            color: var(--text);
        }

        .hero-card .card-sub {
            font-size: 12px;
            color: var(--text-weak);
        }

        /* Stats */
        .stats-strip {
            background: #fff;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            padding: 28px 0;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 8px 0;
        }

        .stat-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            flex-shrink: 0;
        }

        .stat-info .stat-label {
            font-size: 12px;
            color: var(--text-weak);
            font-weight: 500;
            margin-bottom: 2px;
        }

        .stat-info .stat-value {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
        }

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

        .topic-card {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
        }

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

        .topic-card.featured {
            grid-column: span 2;
            flex-direction: row;
        }

        .topic-card.featured .topic-media {
            width: 42%;
        }

        .topic-card .topic-media {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #E9F0FA;
        }

        .topic-card.featured .topic-media {
            aspect-ratio: auto;
            min-height: 240px;
        }

        .topic-card .topic-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .topic-card:hover .topic-media img {
            transform: scale(1.03);
        }

        .topic-card .topic-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            z-index: 2;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(4px);
            border-radius: 6px;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
        }

        .topic-card .topic-body {
            padding: 20px 22px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .topic-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 8px;
        }

        .topic-card .topic-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .topic-card .topic-foot {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .topic-count {
            font-size: 12px;
            color: var(--text-weak);
        }

        .topic-arrow {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: var(--transition);
        }

        .topic-card:hover .topic-arrow {
            background: var(--primary);
            color: #fff;
            transform: translateX(3px);
        }

        /* Featured list */
        .featured-wrap {
            display: grid;
            grid-template-columns: 1fr 1.6fr;
            gap: 48px;
            align-items: start;
        }

        .featured-list {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .feature-item {
            display: flex;
            gap: 18px;
            align-items: center;
            background: #fff;
            border: 1px solid transparent;
            border-radius: 14px;
            padding: 14px;
            transition: var(--transition);
        }

        .feature-item:hover {
            background: var(--primary-light);
            border-color: rgba(46, 107, 230, 0.15);
        }

        .feature-thumb {
            width: 80px;
            height: 80px;
            border-radius: 12px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .feature-content {
            min-width: 0;
        }

        .feature-content .meta-line {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 4px;
        }

        .feature-content h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.4;
        }

        .feature-content p {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-top: 4px;
        }

        /* News */
        .news-list {
            display: flex;
            flex-direction: column;
        }

        .news-item {
            border: 1px solid var(--line);
            border-radius: 14px;
            background: #fff;
            padding: 22px 24px;
            transition: var(--transition);
            margin-bottom: 16px;
        }

        .news-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .news-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            margin-bottom: 8px;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
        }

        .news-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .news-item h3 a:hover {
            color: var(--primary);
        }

        .news-item .sum {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px dashed var(--line);
            padding-top: 12px;
        }

        .news-source {
            font-size: 12px;
            color: var(--text-weak);
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 3px 10px;
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
        }

        .badge-blue {
            background: rgba(46, 107, 230, 0.08);
            color: var(--primary);
        }

        .badge-red {
            background: rgba(212, 0, 28, 0.08);
            color: var(--accent);
        }

        .badge-gold {
            background: rgba(198, 161, 91, 0.12);
            color: #8A6D3B;
        }

        .empty-state {
            background: #F0F4FA;
            border: 1px dashed #C6D6EE;
            border-radius: var(--radius-lg);
            padding: 48px 24px;
            text-align: center;
            color: var(--text-weak);
        }

        .empty-state i {
            font-size: 38px;
            margin-bottom: 12px;
            color: #B7C8E4;
        }

        .empty-state p {
            font-size: 15px;
        }

        /* Related slider */
        .rel-wrap {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
            overflow-x: auto;
            scrollbar-width: none;
        }

        .rel-wrap::-webkit-scrollbar {
            display: none;
        }

        .rel-card {
            min-width: 180px;
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

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

        .rel-card img {
            aspect-ratio: 4 / 3;
            object-fit: cover;
            width: 100%;
        }

        .rel-card .rel-body {
            padding: 14px 16px;
        }

        .rel-card .rel-body h4 {
            font-size: 14px;
            font-weight: 600;
            line-height: 1.4;
        }

        /* CTA band */
        .cta-band {
            background: var(--primary-light);
            border-radius: 24px;
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-band::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(46, 107, 230, 0.07);
        }

        .cta-band h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 10px;
            position: relative;
        }

        .cta-band p {
            color: var(--text-sub);
            margin-bottom: 28px;
            position: relative;
        }

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

        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            height: 46px;
            padding: 0 24px;
            border-radius: 12px;
            border: 1px solid var(--line);
            background: #fff;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

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

        /* Subscribe */
        .subscribe-band {
            background: #16233D;
            border-radius: 24px;
            padding: 56px 48px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            color: #fff;
        }

        .subscribe-band h2 {
            font-size: 26px;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .subscribe-band p {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            line-height: 1.7;
        }

        .subscribe-form {
            display: flex;
            background: #fff;
            border-radius: 999px;
            padding: 6px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .subscribe-form input {
            flex: 1;
            border: none;
            outline: none;
            padding: 0 18px;
            font-size: 14px;
            background: transparent;
            color: var(--text);
            min-width: 0;
        }

        .subscribe-form button {
            flex-shrink: 0;
            height: 42px;
            padding: 0 26px;
            border-radius: 999px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .subscribe-form button:hover {
            background: var(--primary-dark);
        }

        .subscribe-success {
            display: none;
            margin-top: 10px;
            color: #4ADE80;
            font-size: 14px;
            align-items: center;
            gap: 8px;
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--line);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item.active {
            border-color: rgba(46, 107, 230, 0.3);
            box-shadow: var(--shadow);
        }

        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            background: none;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            text-align: left;
            color: var(--text);
            transition: var(--transition);
        }

        .faq-q .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            flex-shrink: 0;
            transition: transform 0.25s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #fff;
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .faq-a p {
            padding: 0 22px 18px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* Footer */
        .site-footer {
            background: #16233D;
            color: #A9B4C4;
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand .brand-text {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
        }

        .footer-brand .brand-text .brand-red {
            color: var(--accent);
        }

        .footer-desc {
            font-size: 13px;
            line-height: 1.8;
            color: #8494A8;
            margin-top: 14px;
            max-width: 340px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col a {
            font-size: 13px;
            color: #8494A8;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: #A9C4FF;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: #6E7D92;
        }

        .footer-social {
            display: flex;
            gap: 10px;
            margin-top: 16px;
        }

        .footer-social a {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            color: #A9B4C4;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .section {
                padding: 64px 0;
            }

            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
                padding: 56px 0 48px;
            }

            .hero-visual {
                max-width: 560px;
            }

            .hero-card {
                left: 12px;
                bottom: -16px;
            }

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

            .topic-card.featured {
                grid-column: span 2;
                flex-direction: column;
            }

            .topic-card.featured .topic-media {
                width: 100%;
                min-height: auto;
                aspect-ratio: 16 / 9;
            }

            .featured-wrap {
                grid-template-columns: 1fr;
                gap: 32px;
            }

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

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

            .subscribe-band {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .main-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .search-box {
                width: 38px;
                padding: 0;
                justify-content: center;
                border-radius: 50%;
            }

            .search-box input,
            .search-box .search-kbd {
                display: none;
            }

            .search-box:focus-within {
                width: 38px;
                border-color: var(--line);
                box-shadow: none;
            }

            .header-actions .header-cta span {
                display: none;
            }

            .header-cta {
                width: 38px;
                padding: 0;
                justify-content: center;
            }

            .mobile-menu {
                display: block;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space: 56px;
            }

            .container {
                padding: 0 20px;
            }

            .hero h1 {
                font-size: 30px;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .section-head h2 {
                font-size: 22px;
            }

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

            .topic-card.featured {
                grid-column: span 1;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }

            .cta-band,
            .subscribe-band {
                padding: 36px 24px;
            }

            .cta-actions {
                flex-direction: column;
            }

            .cta-btn {
                width: 100%;
            }

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

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

            .feature-item {
                flex-direction: column;
                align-items: flex-start;
            }

            .feature-thumb {
                width: 100%;
                height: auto;
                aspect-ratio: 16 / 8;
            }

            .news-item {
                padding: 18px;
            }

            .brand-text .brand-wide {
                display: none;
            }

            .brand-text .brand-short {
                display: inline;
            }
        }

        @media (max-width: 520px) {
            .hero-card {
                position: static;
                margin-top: 16px;
                max-width: 100%;
            }

            .hero-inner {
                padding-top: 40px;
            }

            .search-box {
                display: none;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2E6BE6;
            --primary-dark: #1E56C4;
            --primary-light: #F0F5FF;
            --accent: #D4001C;
            --accent-dark: #B80018;
            --gold: #C6A15B;
            --bg: #F5F8FC;
            --card: #FFFFFF;
            --text: #1C2B3A;
            --text-secondary: #5B6B7C;
            --text-weak: #8A97A6;
            --border: #E6ECF3;
            --footer-bg: #16233D;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(30, 50, 80, 0.06);
            --shadow-hover: 0 8px 24px rgba(30, 50, 80, 0.10);
            --header-h: 64px;
            --transition: 0.2s ease;
            --container-w: 1200px;
            --space-section: 96px;
            --space-section-mobile: 56px;
        }

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

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            background: none;
            outline: none;
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

        details summary {
            list-style: none;
            cursor: pointer;
        }

        details summary::-webkit-details-marker {
            display: none;
        }

        .container {
            width: 100%;
            max-width: var(--container-w);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-md);
            font-size: 14px;
            font-weight: 600;
            line-height: 1;
            white-space: nowrap;
            transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            border: 1px solid var(--primary);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-light);
            transform: translateY(-1px);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            border: 1px solid var(--accent);
        }

        .btn-accent:hover {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-hover);
        }

        .text-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            transition: gap var(--transition);
        }

        .text-btn i {
            transition: transform var(--transition);
        }

        .text-btn:hover i {
            transform: translateX(3px);
        }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: var(--header-h);
            background: #fff;
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 24px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--accent);
        }

        .brand-text {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text);
        }

        .brand-red {
            color: var(--accent);
        }

        .brand-short {
            display: none;
            font-size: 15px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: 8px;
        }

        .main-nav a {
            position: relative;
            display: block;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-md);
            transition: color var(--transition), background var(--transition);
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: -1px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 200px;
            height: 40px;
            padding: 0 14px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            transition: width var(--transition), border-color var(--transition), box-shadow var(--transition);
        }

        .search-box.focused {
            width: 240px;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.12);
        }

        .search-box i {
            color: var(--text-weak);
            font-size: 14px;
        }

        .search-box input {
            flex: 1;
            min-width: 0;
            border: none;
            background: none;
            font-size: 14px;
            color: var(--text);
        }

        .search-box input::placeholder {
            color: var(--text-weak);
        }

        .search-kbd {
            font-size: 11px;
            font-weight: 500;
            color: var(--text-weak);
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 4px;
            padding: 2px 6px;
            white-space: nowrap;
        }

        .header-fav {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: 50%;
            background: #fff;
            color: var(--text-secondary);
            font-size: 14px;
            transition: border-color var(--transition), color var(--transition), background var(--transition);
        }

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

        .header-fav.active {
            background: var(--primary-light);
            border-color: var(--primary);
            color: var(--primary);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 40px;
            padding: 0 18px;
            border-radius: var(--radius-md);
            background: var(--primary);
            color: #fff !important;
            font-size: 14px;
            font-weight: 600;
            transition: background var(--transition), transform var(--transition);
        }

        .header-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            background: #fff;
            color: var(--text);
            font-size: 16px;
        }

        /* ========== Hero ========== */
        .page-hero {
            position: relative;
            background: var(--bg);
            overflow: hidden;
            padding: 72px 0 80px;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: -120px;
            left: -120px;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: rgba(46, 107, 230, 0.05);
            pointer-events: none;
        }

        .hero-grid {
            position: relative;
            display: grid;
            grid-template-columns: 6fr 5fr;
            gap: 48px;
            align-items: center;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-weak);
            margin-bottom: 16px;
        }

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

        .breadcrumb a:hover {
            text-decoration: underline;
        }

        .breadcrumb span {
            font-weight: 500;
            color: var(--text-secondary);
        }

        .page-hero h1 {
            font-size: 38px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .hero-lead {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 480px;
            margin-bottom: 28px;
        }

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

        .hero-media {
            position: relative;
        }

        .hero-media img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
            aspect-ratio: 5 / 4;
            object-fit: cover;
        }

        .hero-media::after {
            content: "";
            position: absolute;
            right: -14px;
            bottom: -14px;
            width: 60%;
            height: 60%;
            border-radius: var(--radius-lg);
            background: rgba(46, 107, 230, 0.06);
            z-index: -1;
        }

        /* ========== 数据带 ========== */
        .stats-band {
            padding: 40px 0;
            background: #fff;
            border-bottom: 1px solid var(--border);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .stat-item {
            text-align: center;
            padding: 12px 20px;
        }

        .stat-item strong {
            display: block;
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 4px;
        }

        .stat-item strong .red {
            color: var(--accent);
        }

        .stat-item span {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* ========== 通用 Section ========== */
        .section {
            padding: var(--space-section) 0;
        }

        .section.alt {
            background: #fff;
        }

        .section-head {
            max-width: 640px;
            margin-bottom: 40px;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-head h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 8px;
        }

        .section-head p {
            font-size: 15px;
            color: var(--text-secondary);
        }

        /* ========== 卡片网格 ========== */
        .cards-grid {
            display: grid;
            gap: 24px;
        }

        .cards-grid.three {
            grid-template-columns: repeat(3, 1fr);
        }

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

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

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

        .card .card-media {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            background: var(--primary-light);
        }

        .card-body {
            padding: 24px;
        }

        .card-tag {
            display: inline-block;
            padding: 3px 10px;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: var(--radius-sm);
            margin-bottom: 10px;
        }

        .card-tag.red {
            color: var(--accent);
            background: rgba(212, 0, 28, 0.08);
        }

        .card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--text);
        }

        .card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        .card-horizontal {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px;
        }

        .card-horizontal img {
            width: 140px;
            height: 100px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
        }

        /* ========== 适用场景 Split ========== */
        .split-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .split-copy h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 12px;
        }

        .split-copy > p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 24px;
            max-width: 460px;
        }

        .check-list {
            margin-bottom: 28px;
        }

        .check-list li {
            position: relative;
            padding: 6px 0 6px 28px;
            font-size: 15px;
            color: var(--text);
        }

        .check-list li::before {
            content: "\f00c";
            font-family: "Font Awesome 6 Free";
            font-weight: 600;
            position: absolute;
            left: 0;
            top: 6px;
            width: 20px;
            height: 20px;
            color: var(--primary);
            font-size: 13px;
            text-align: center;
        }

        .split-media img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        /* ========== 三步流程 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .step-card {
            position: relative;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow var(--transition), transform var(--transition);
        }

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

        .step-num {
            display: inline-block;
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            background: rgba(212, 0, 28, 0.08);
            border-radius: var(--radius-sm);
            padding: 3px 10px;
            margin-bottom: 16px;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
        }

        /* ========== FAQ ========== */
        .container-narrow {
            max-width: 760px;
        }

        .faq-section .section-head {
            text-align: center;
            margin-left: auto;
            margin-right: auto;
        }

        .faq-list {
            margin-top: 32px;
        }

        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition), box-shadow var(--transition);
        }

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

        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            user-select: none;
        }

        .faq-item summary .icon {
            font-size: 16px;
            color: var(--primary);
            transition: transform var(--transition);
            flex-shrink: 0;
        }

        .faq-item[open] summary .icon {
            transform: rotate(45deg);
        }

        .faq-item[open] {
            border-color: var(--primary);
        }

        .faq-answer {
            padding: 0 20px 16px;
            border-top: 1px solid var(--border);
            margin-top: 0;
            padding-top: 12px;
        }

        .faq-answer p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 72px 0;
            background: var(--primary-light);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

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

        .cta-inner h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .cta-inner p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 480px;
            margin: 0 auto;
            align-items: center;
        }

        .subscribe-form input {
            flex: 1;
            height: 44px;
            padding: 0 20px;
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            background: #fff;
            font-size: 14px;
            color: var(--text);
            min-width: 0;
        }

        .subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.12);
        }

        .form-success {
            margin-top: 12px;
            font-size: 14px;
            color: #1a9e5c;
            font-weight: 500;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--footer-bg);
            color: #A9B4C4;
            padding: 64px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            margin-bottom: 48px;
        }

        .footer-brand .brand-text {
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: #A9B4C4;
            margin: 16px 0 24px;
            max-width: 360px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 50%;
            color: #A9B4C4;
            font-size: 14px;
            transition: background var(--transition), border-color var(--transition), color var(--transition);
        }

        .footer-social a:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: #A9B4C4;
            transition: color var(--transition);
        }

        .footer-col ul a:hover {
            color: #A9C4FF;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.10);
            padding-top: 24px;
            font-size: 13px;
            color: #7A879A;
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .main-nav {
                position: fixed;
                top: var(--header-h);
                right: 0;
                width: 300px;
                height: calc(100vh - var(--header-h));
                background: #fff;
                flex-direction: column;
                align-items: flex-start;
                padding: 24px;
                gap: 8px;
                box-shadow: -8px 0 24px rgba(30, 50, 80, 0.08);
                transform: translateX(100%);
                transition: transform 0.3s ease;
                z-index: 200;
                overflow-y: auto;
                margin: 0;
            }

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

            .main-nav a {
                width: 100%;
                padding: 12px 14px;
                font-size: 15px;
            }

            .main-nav a.active::after {
                left: 14px;
                right: auto;
                bottom: 10px;
                width: 20px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .search-box {
                width: 160px;
            }

            .search-box.focused {
                width: 180px;
            }

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

            .hero-media img {
                aspect-ratio: 16 / 9;
            }

            .stats-grid {
                gap: 16px;
            }

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

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

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

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

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

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .header-actions .search-box {
                width: 40px;
                padding: 0;
                justify-content: center;
                border-radius: 50%;
                border-color: var(--border);
            }

            .header-actions .search-box input,
            .header-actions .search-box .search-kbd {
                display: none;
            }

            .header-actions .search-box.focused {
                width: 40px;
            }

            .header-cta span {
                display: none;
            }

            .header-cta {
                width: 40px;
                padding: 0;
                justify-content: center;
                border-radius: 50%;
            }

            .brand-text .brand-wide {
                display: none;
            }

            .brand-text .brand-short {
                display: inline;
            }

            .brand-badge {
                width: 32px;
                height: 32px;
                font-size: 16px;
            }

            .page-hero {
                padding: 48px 0 56px;
            }

            .page-hero h1 {
                font-size: 28px;
            }

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

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

            .stats-band {
                padding: 24px 0;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .stat-item {
                display: flex;
                align-items: center;
                justify-content: center;
                gap: 12px;
                padding: 8px 0;
                text-align: left;
            }

            .stat-item strong {
                margin-bottom: 0;
                font-size: 24px;
            }

            .cards-grid.three,
            .cards-grid.two {
                grid-template-columns: 1fr;
            }

            .card-horizontal {
                flex-direction: column;
                align-items: flex-start;
            }

            .card-horizontal img {
                width: 100%;
                height: auto;
                aspect-ratio: 16 / 9;
            }

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

            .section-head h2,
            .split-copy h2 {
                font-size: 22px;
            }

            .subscribe-form {
                flex-direction: column;
            }

            .subscribe-form .btn {
                width: 100%;
            }

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

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

        @media (max-width: 520px) {
            .header-inner {
                gap: 8px;
            }

            .header-fav {
                display: none;
            }

            .main-nav {
                width: 260px;
            }

            .page-hero h1 {
                font-size: 24px;
            }

            .hero-lead {
                font-size: 15px;
            }

            .cta-inner h2 {
                font-size: 24px;
            }
        }

        /* 可访问性 */
        .btn:focus-visible,
        .header-cta:focus-visible,
        .header-fav:focus-visible,
        .nav-toggle:focus-visible,
        .main-nav a:focus-visible,
        .search-box input:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

/* roulang page: article */
:root {
            --primary: #2E6BE6;
            --primary-deep: #1E55C8;
            --primary-light: #F0F5FF;
            --brand-red: #D4001C;
            --bg: #F5F8FC;
            --card: #FFFFFF;
            --text: #1C2B3A;
            --text-secondary: #5B6B7C;
            --text-helper: #8A97A6;
            --border: #E6ECF3;
            --gold: #C6A15B;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-pill: 999px;
            --shadow-sm: 0 2px 8px rgba(30, 50, 80, 0.06);
            --shadow-hover: 0 8px 24px rgba(30, 50, 80, 0.10);
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --font-num: Inter, Roboto, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        input {
            font-family: inherit;
            border: none;
            outline: none;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ============ Header ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 64px;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 4px rgba(30, 50, 80, 0.04);
        }

        .header-inner {
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-badge {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--brand-red);
            color: #fff;
            font-weight: 800;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 6px rgba(212, 0, 28, 0.25);
            letter-spacing: -0.5px;
        }

        .brand-text {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.2;
            white-space: nowrap;
        }

        .brand-red {
            color: var(--brand-red);
        }

        .brand-short {
            display: none;
        }

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

        .main-nav a {
            position: relative;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: color 0.2s, background 0.2s;
        }

        .main-nav a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            width: 200px;
            height: 38px;
            padding: 0 14px;
            background: #F2F6FB;
            border-radius: var(--radius-pill);
            transition: width 0.3s ease, box-shadow 0.3s ease, background 0.3s;
        }

        .search-box:focus-within {
            width: 240px;
            background: #FFFFFF;
            box-shadow: 0 0 0 2px rgba(46, 107, 230, 0.25);
        }

        .search-box i {
            color: var(--text-helper);
            font-size: 13px;
        }

        .search-box input {
            flex: 1;
            background: transparent;
            font-size: 13px;
            color: var(--text);
            min-width: 0;
        }

        .search-box input::placeholder {
            color: var(--text-helper);
        }

        .search-kbd {
            font-size: 11px;
            color: var(--text-helper);
            background: #FFFFFF;
            border: 1px solid var(--border);
            border-radius: 5px;
            padding: 2px 6px;
            font-family: var(--font-num);
            white-space: nowrap;
        }

        .header-fav {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-secondary);
            background: #F2F6FB;
            transition: background 0.2s, color 0.2s, transform 0.2s;
        }

        .header-fav:hover {
            color: var(--gold);
            background: #FBF7EF;
            transform: scale(1.06);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 38px;
            padding: 0 18px;
            background: var(--primary);
            color: #fff !important;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-md);
            transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
        }

        .header-cta:hover {
            background: var(--primary-deep);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(46, 107, 230, 0.3);
        }

        .nav-toggle {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: #F2F6FB;
            color: var(--text);
            font-size: 16px;
            align-items: center;
            justify-content: center;
        }

        /* ============ 文章 Banner ============ */
        .article-banner {
            position: relative;
            padding: 48px 0 40px;
            background:
                linear-gradient(135deg, #F5F8FC 0%, #EEF3FB 60%, #E7EEF9 100%);
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .article-banner::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(46, 107, 230, 0.06);
        }

        .article-banner::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(212, 0, 28, 0.03);
        }

        .article-banner .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 13px;
            color: var(--text-helper);
            margin-bottom: 18px;
        }

        .breadcrumb a {
            color: var(--primary);
            font-weight: 500;
        }

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

        .breadcrumb .current {
            color: var(--text);
            font-weight: 500;
            max-width: 360px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .article-banner h1 {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 20px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta i {
            color: var(--text-helper);
            font-size: 14px;
        }

        .article-meta .meta-badge {
            display: inline-flex;
            align-items: center;
            padding: 3px 12px;
            background: rgba(212, 0, 28, 0.08);
            color: var(--brand-red);
            border-radius: 6px;
            font-weight: 600;
            font-size: 12px;
        }

        /* ============ 文章布局 ============ */
        .article-layout-wrap {
            padding: 48px 0 64px;
        }

        .article-layout {
            display: flex;
            gap: 32px;
            align-items: flex-start;
        }

        .article-content {
            flex: 1;
            min-width: 0;
            background: var(--card);
            border-radius: var(--radius-lg);
            padding: 48px 56px;
            box-shadow: var(--shadow-sm);
        }

        .article-body {
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
        }

        .article-body p {
            margin: 0 0 24px;
        }

        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin: 40px 0 16px;
            line-height: 1.35;
        }

        .article-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 28px 0 12px;
            line-height: 1.4;
        }

        .article-body h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin: 20px 0 10px;
        }

        .article-body blockquote {
            margin: 24px 0;
            padding: 16px 22px;
            background: var(--primary-light);
            border-left: 3px solid var(--primary);
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-size: 15px;
        }

        .article-body blockquote p {
            margin-bottom: 0;
        }

        .article-body img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            margin: 24px 0;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 24px;
            padding-left: 24px;
        }

        .article-body ul li {
            list-style: disc;
            margin: 8px 0;
            padding-left: 4px;
        }

        .article-body ol li {
            list-style: decimal;
            margin: 8px 0;
            padding-left: 4px;
        }

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

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

        .article-body code {
            background: #F2F6FB;
            border-radius: 6px;
            padding: 2px 6px;
            font-size: 14px;
            font-family: var(--font-num);
            color: #C7254E;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            border-radius: 8px;
            overflow: hidden;
            font-size: 14px;
        }

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

        .article-body table th {
            background: #F2F6FB;
            font-weight: 600;
            color: var(--text);
        }

        .not-found {
            text-align: center;
            padding: 60px 20px;
        }

        .not-found i {
            font-size: 48px;
            color: var(--text-helper);
            margin-bottom: 16px;
        }

        .not-found p {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

        /* ============ 分享位 ============ */
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            flex-wrap: wrap;
        }

        .article-share>span {
            font-size: 14px;
            color: var(--text-secondary);
            font-weight: 500;
            margin-right: 4px;
        }

        .share-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 38px;
            padding: 0 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: #F2F6FB;
            border-radius: var(--radius-pill);
            border: 1px solid transparent;
            transition: all 0.2s ease;
        }

        .share-btn:hover {
            color: var(--primary);
            background: var(--primary-light);
            border-color: rgba(46, 107, 230, 0.2);
        }

        .share-btn i {
            font-size: 16px;
        }

        /* ============ 返回按钮 ============ */
        .article-back {
            margin-top: 28px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 44px;
            padding: 0 24px;
            background: #FFFFFF;
            border: 1px solid var(--primary);
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-md);
            transition: all 0.2s ease;
        }

        .btn-secondary:hover {
            background: var(--primary-light);
            color: var(--primary-deep);
            border-color: var(--primary-deep);
            transform: translateY(-1px);
        }

        /* ============ 侧栏 ============ */
        .article-sidebar {
            width: 280px;
            flex-shrink: 0;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .side-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            padding: 24px;
            box-shadow: var(--shadow-sm);
        }

        .side-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            position: relative;
        }

        .side-card h3::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -1px;
            width: 32px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .side-menu li a {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 0;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px dashed var(--border);
            transition: color 0.2s, padding-left 0.2s;
        }

        .side-menu li:last-child a {
            border-bottom: none;
        }

        .side-menu li a:hover {
            color: var(--primary);
            padding-left: 6px;
        }

        .side-menu li a::before {
            content: "›";
            color: var(--text-helper);
            font-size: 16px;
            transition: transform 0.2s;
        }

        .side-menu li a:hover::before {
            color: var(--primary);
            transform: translateX(2px);
        }

        .hot-list li {
            margin-bottom: 4px;
        }

        .hot-list li a {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
            border-bottom: 1px dashed var(--border);
            transition: color 0.2s;
        }

        .hot-list li:last-child a {
            border-bottom: none;
        }

        .hot-list li a:hover {
            color: var(--primary);
        }

        .hot-num {
            font-family: var(--font-num);
            font-size: 12px;
            font-weight: 700;
            color: var(--text-helper);
            background: #F2F6FB;
            border-radius: 6px;
            padding: 2px 6px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .hot-list li:first-child .hot-num {
            color: var(--brand-red);
            background: rgba(212, 0, 28, 0.08);
        }

        /* ============ 相关推荐 ============ */
        .related-section {
            padding: 64px 0 72px;
            background: #FFFFFF;
            border-top: 1px solid var(--border);
        }

        .related-section .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 28px;
        }

        .related-section .section-head h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
        }

        .related-section .section-head p {
            font-size: 14px;
            color: var(--text-helper);
            max-width: 420px;
            line-height: 1.6;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .related-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

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

        .related-card img {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        .related-info {
            padding: 20px;
        }

        .related-info .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            border-radius: 6px;
            padding: 3px 10px;
            margin-bottom: 10px;
        }

        .related-info h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .related-info p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: #16233D;
            color: #A9B4C6;
            padding-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-brand .brand-badge {
            background: var(--brand-red);
        }

        .footer-brand .brand-text {
            color: #FFFFFF;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: #8A97A6;
            max-width: 360px;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: #A9B4C6;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: background 0.2s, color 0.2s;
        }

        .footer-social a:hover {
            background: rgba(46, 107, 230, 0.3);
            color: #A9C4FF;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #FFFFFF;
            margin-bottom: 18px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: #8A97A6;
            transition: color 0.2s;
        }

        .footer-col ul li a:hover {
            color: #A9C4FF;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: #6B788A;
        }

        /* ============ Toast ============ */
        .toast-msg {
            position: fixed;
            bottom: 40px;
            left: 50%;
            transform: translateX(-50%) translateY(20px);
            background: var(--text);
            color: #fff;
            font-size: 14px;
            padding: 12px 24px;
            border-radius: var(--radius-md);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 999;
        }

        .toast-msg.show {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .article-layout {
                flex-direction: column;
            }

            .article-sidebar {
                width: 100%;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

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

            .article-content {
                padding: 40px 36px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }

            .header-inner {
                gap: 8px;
            }

            .brand-wide {
                display: none;
            }

            .brand-short {
                display: inline;
            }

            .main-nav {
                display: none;
                position: fixed;
                top: 64px;
                right: 0;
                bottom: 0;
                width: 280px;
                background: #FFFFFF;
                flex-direction: column;
                align-items: stretch;
                padding: 24px 16px;
                box-shadow: -8px 0 24px rgba(30, 50, 80, 0.10);
                z-index: 99;
                overflow-y: auto;
                border-left: 1px solid var(--border);
            }

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

            .main-nav a {
                padding: 14px 16px;
                font-size: 15px;
                border-radius: var(--radius-md);
            }

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

            .main-nav a.active {
                background: var(--primary-light);
            }

            .search-box {
                width: 38px;
                padding: 0;
                justify-content: center;
                background: #F2F6FB;
            }

            .search-box input,
            .search-box .search-kbd {
                display: none;
            }

            .search-box:focus-within {
                width: 38px;
                box-shadow: none;
            }

            .header-fav {
                display: none;
            }

            .header-cta span {
                display: none;
            }

            .header-cta {
                width: 38px;
                padding: 0;
                justify-content: center;
            }

            .nav-toggle {
                display: flex;
            }

            .article-banner {
                padding: 32px 0 28px;
            }

            .article-banner h1 {
                font-size: 26px;
            }

            .article-meta {
                gap: 12px;
            }

            .article-layout-wrap {
                padding: 24px 0 40px;
            }

            .article-content {
                padding: 24px 20px;
                border-radius: 12px;
            }

            .article-body {
                font-size: 15px;
                line-height: 1.8;
            }

            .article-sidebar {
                grid-template-columns: 1fr;
            }

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

            .related-section {
                padding: 40px 0 48px;
            }

            .related-section .section-head {
                flex-direction: column;
                align-items: flex-start;
            }

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

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

        @media (max-width: 520px) {
            .article-meta {
                gap: 10px;
                font-size: 12px;
            }

            .article-meta .meta-badge {
                font-size: 11px;
                padding: 2px 8px;
            }

            .article-share {
                gap: 8px;
            }

            .share-btn {
                padding: 0 14px;
                font-size: 12px;
            }

            .related-info {
                padding: 16px;
            }
        }

        @media (min-width: 769px) and (max-width: 1024px) {
            .main-nav a {
                padding: 8px 10px;
                font-size: 13px;
            }

            .search-box {
                width: 160px;
            }

            .search-box:focus-within {
                width: 190px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2E6BE6;
            --primary-dark: #1E55C7;
            --primary-light: #EAF0FE;
            --accent: #D4001C;
            --gold: #C6A15B;
            --bg: #F5F8FC;
            --card-bg: #FFFFFF;
            --text: #1C2B3A;
            --text-secondary: #5B6B7C;
            --text-muted: #8A97A6;
            --border: #E6ECF3;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --shadow-sm: 0 2px 8px rgba(30, 50, 80, 0.06);
            --shadow-md: 0 8px 24px rgba(30, 50, 80, 0.10);
            --container: 1200px;
            --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color 0.2s ease;
        }

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

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

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 64px;
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-badge {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--accent);
            color: #fff;
            font-size: 16px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            letter-spacing: -0.5px;
            box-shadow: 0 2px 6px rgba(212, 0, 28, 0.25);
        }

        .brand-text {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            white-space: nowrap;
            line-height: 1.3;
        }

        .brand-red {
            color: var(--accent);
        }

        .brand-wide {
            display: inline;
        }

        .brand-short {
            display: none;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            position: relative;
            transition: background 0.2s, color 0.2s;
        }

        .main-nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .main-nav a.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg);
            border: 1px solid transparent;
            border-radius: 999px;
            padding: 0 14px;
            height: 38px;
            width: 200px;
            transition: width 0.3s, border-color 0.2s, box-shadow 0.2s;
        }

        .search-box:focus-within {
            width: 240px;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.12);
        }

        .search-box i {
            color: var(--text-muted);
            font-size: 13px;
        }

        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 13px;
            color: var(--text);
            flex: 1;
            min-width: 0;
        }

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

        .search-kbd {
            font-size: 11px;
            color: var(--text-muted);
            background: var(--border);
            border-radius: 4px;
            padding: 2px 6px;
            white-space: nowrap;
        }

        .header-fav {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: none;
            background: var(--bg);
            color: var(--text-secondary);
            font-size: 14px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s, color 0.2s;
        }

        .header-fav:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .header-cta {
            display: flex;
            align-items: center;
            gap: 6px;
            height: 38px;
            padding: 0 18px;
            border-radius: 10px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: background 0.2s, transform 0.2s;
        }

        .header-cta:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
        }

        .nav-toggle {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            border: none;
            background: var(--bg);
            color: var(--text);
            font-size: 16px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        /* ========== Page Hero ========== */
        .page-hero {
            background: var(--bg);
            position: relative;
            overflow: hidden;
            padding: 72px 0 64px;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: -80px;
            left: -80px;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(46, 107, 230, 0.05);
            pointer-events: none;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            bottom: -40px;
            right: 10%;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(212, 0, 28, 0.04);
            pointer-events: none;
        }

        .page-hero-inner {
            display: flex;
            align-items: center;
            gap: 56px;
            position: relative;
            z-index: 2;
        }

        .page-hero-content {
            flex: 1.1;
        }

        .page-hero-visual {
            flex: 0.9;
        }

        .page-hero-visual img {
            width: 100%;
            border-radius: 16px;
            box-shadow: var(--shadow-sm);
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }

        .page-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 18px;
        }

        .page-hero-badge::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
        }

        .page-hero h1 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .page-hero p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 480px;
            margin-bottom: 28px;
        }

        .page-hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 26px;
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all 0.2s ease;
        }

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

        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(46, 107, 230, 0.25);
        }

        .btn-outline {
            background: #fff;
            color: var(--primary);
            border: 1px solid var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            transform: translateY(-1px);
        }

        /* ========== Section Base ========== */
        .section {
            padding: 80px 0;
        }

        .section-bg-light {
            background: var(--bg);
        }

        .section-header {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-header h2 {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text);
            margin-bottom: 10px;
        }

        .section-header p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .section-header .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        /* ========== Info Panels ========== */
        .info-panels {
            padding: 80px 0 64px;
        }

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

        .info-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: box-shadow 0.3s, transform 0.3s;
        }

        .info-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .info-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 16px;
        }

        .info-card:nth-child(2) .info-card-icon {
            background: rgba(212, 0, 28, 0.08);
            color: var(--accent);
        }

        .info-card:nth-child(3) .info-card-icon {
            background: rgba(198, 161, 91, 0.12);
            color: #a07a3e;
        }

        .info-card h3 {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 8px;
        }

        .info-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Directions ========== */
        .directions {
            padding: 64px 0 80px;
            background: var(--bg);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .directions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .direction-item {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.3s, transform 0.3s;
        }

        .direction-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .direction-item img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }

        .direction-item-body {
            padding: 22px 22px 26px;
        }

        .direction-item-body h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
        }

        .direction-item-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== Stats Band ========== */
        .stats-band {
            padding: 56px 0;
            background: var(--text);
            background: linear-gradient(135deg, #1C2B3A 0%, #16233D 100%);
            color: #fff;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            text-align: center;
        }

        .stat-item .stat-number {
            font-size: 40px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -1px;
        }

        .stat-item .stat-number em {
            font-style: normal;
            color: var(--gold);
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 6px;
        }

        .stat-item .stat-desc {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
            margin-top: 2px;
        }

        /* ========== Scenes ========== */
        .scenes {
            padding: 80px 0;
        }

        .scenes-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }

        .scene-card {
            display: flex;
            gap: 20px;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.3s;
        }

        .scene-card:hover {
            box-shadow: var(--shadow-md);
        }

        .scene-card img {
            width: 96px;
            height: 96px;
            border-radius: 12px;
            object-fit: cover;
            flex-shrink: 0;
        }

        .scene-card-body h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .scene-card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .faq-section {
            padding: 80px 0;
            background: var(--bg);
            border-top: 1px solid var(--border);
        }

        .faq-list {
            max-width: 720px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-bg);
            border-radius: var(--radius-md);
            border: 1px solid var(--border);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .faq-item.open {
            border-color: var(--primary);
            box-shadow: 0 2px 12px rgba(46, 107, 230, 0.08);
        }

        .faq-question {
            width: 100%;
            background: none;
            border: none;
            text-align: left;
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color 0.2s;
        }

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

        .faq-question::after {
            content: "+";
            font-size: 22px;
            font-weight: 400;
            color: var(--text-muted);
            transition: transform 0.3s, color 0.2s;
            flex-shrink: 0;
            line-height: 1;
        }

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

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

        .faq-answer-inner {
            padding: 0 24px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* ========== CTA Subscribe ========== */
        .cta-section {
            padding: 64px 0;
            background: var(--primary-light);
        }

        .cta-inner {
            text-align: center;
            max-width: 560px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .cta-inner p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 28px;
        }

        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 440px;
            margin: 0 auto;
        }

        .subscribe-form input {
            flex: 1;
            height: 44px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: #fff;
            padding: 0 20px;
            font-size: 14px;
            color: var(--text);
            outline: none;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .subscribe-form input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(46, 107, 230, 0.1);
        }

        .subscribe-form .btn {
            flex-shrink: 0;
            border-radius: 999px;
        }

        .subscribe-tip {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 12px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #16233D;
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand .brand {
            margin-bottom: 16px;
        }

        .footer-brand .brand-text {
            color: #fff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 10px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: background 0.2s, color 0.2s;
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: color 0.2s;
        }

        .footer-col ul a:hover {
            color: #A9C4FF;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .main-nav {
                display: none;
                position: fixed;
                top: 64px;
                right: 0;
                width: 280px;
                height: calc(100vh - 64px);
                background: #fff;
                flex-direction: column;
                padding: 24px;
                gap: 8px;
                box-shadow: -4px 0 24px rgba(0, 0, 0, 0.06);
                z-index: 99;
            }

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

            .main-nav a {
                padding: 12px 16px;
                font-size: 15px;
                width: 100%;
                text-align: left;
            }

            .main-nav a.active::after {
                left: 16px;
                right: auto;
                bottom: auto;
                top: 50%;
                transform: translateY(-50%);
                width: 3px;
                height: 20px;
                border-radius: 3px;
            }

            .nav-toggle {
                display: flex;
            }

            .search-box {
                width: 160px;
            }

            .search-box:focus-within {
                width: 190px;
            }

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

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

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

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }

            .brand-wide {
                display: none;
            }

            .brand-short {
                display: inline;
            }

            .search-box {
                display: none;
            }

            .header-actions .header-cta span {
                display: none;
            }

            .header-cta {
                padding: 0 14px;
            }

            .page-hero {
                padding: 48px 0 40px;
            }

            .page-hero-inner {
                flex-direction: column;
                gap: 32px;
            }

            .page-hero h1 {
                font-size: 26px;
            }

            .page-hero p {
                font-size: 15px;
            }

            .page-hero-visual {
                width: 100%;
            }

            .section {
                padding: 48px 0;
            }

            .info-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .directions-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .stats-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .stat-item .stat-number {
                font-size: 32px;
            }

            .scenes-grid {
                gap: 16px;
            }

            .scene-card {
                flex-direction: column;
                align-items: flex-start;
            }

            .scene-card img {
                width: 100%;
                height: auto;
                aspect-ratio: 16/9;
            }

            .subscribe-form {
                flex-direction: column;
                gap: 10px;
            }

            .subscribe-form .btn {
                width: 100%;
            }

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

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .section-header h2 {
                font-size: 22px;
            }

            .info-card {
                padding: 20px;
            }

            .direction-item-body {
                padding: 16px;
            }

            .page-hero-actions {
                flex-direction: column;
            }

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