/* roulang page: index */
:root {
    --primary: #1D4ED8;
    --primary-dark: #1E3A8A;
    --accent: #F97316;
    --bg: #F8FAFC;
    --card: #FFFFFF;
    --text: #1F2937;
    --text-muted: #6B7280;
    --border: #E5E7EB;
    --radius: 16px;
    --shadow: 0 10px 30px rgba(30, 64, 175, 0.08);
    --shadow-hover: 0 16px 40px rgba(30, 64, 175, 0.12);
}
* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    padding-bottom: 80px;
}
img {
    max-width: 100%;
    height: auto;
}
a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: 16px;
    padding-right: 16px;
}
@media (min-width: 640px) {
    .container {
        padding-left: 24px;
        padding-right: 24px;
    }
}
section {
    padding-top: 64px;
    padding-bottom: 64px;
}
@media (min-width: 768px) {
    section {
        padding-top: 96px;
        padding-bottom: 96px;
    }
}
.dock-header {
    position: fixed;
    top: 16px;
    left: 0;
    right: 0;
    z-index: 50;
    padding: 0 16px;
}
.dock-nav {
    max-width: 1024px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(226, 232, 240, 0.6);
    border-radius: 9999px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
}
.dock-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.15rem;
    color: #1E293B;
    white-space: nowrap;
}
.dock-logo .logo-badge {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0;
}
.dock-links {
    display: none;
    align-items: center;
    gap: 28px;
}
@media (min-width: 768px) {
    .dock-links {
        display: flex;
    }
}
.dock-links a {
    font-weight: 500;
    color: #475569;
    font-size: 0.95rem;
    padding: 4px 2px;
    position: relative;
}
.dock-links a:hover,
.dock-links a.active {
    color: var(--primary);
}
.dock-links a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}
.dock-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}
.dock-search {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #F1F5F9;
    color: #64748B;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    border: none;
    cursor: pointer;
    font-size: 14px;
}
.dock-search:hover {
    background: #E2E8F0;
}
.dock-cta {
    display: none;
    align-items: center;
    gap: 6px;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 9999px;
    padding: 8px 18px;
    transition: background 0.2s;
    white-space: nowrap;
}
.dock-cta:hover {
    background: var(--primary-dark);
}
@media (min-width: 768px) {
    .dock-cta {
        display: inline-flex;
    }
}
.dock-burger {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #F1F5F9;
    color: #64748B;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    font-size: 15px;
}
@media (min-width: 768px) {
    .dock-burger {
        display: none;
    }
}
.mobile-menu {
    max-width: 1024px;
    margin: 8px auto 0;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid #E2E8F0;
    border-radius: 20px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
    padding: 16px;
    display: none;
}
.mobile-menu.open {
    display: block;
}
.mobile-menu a {
    display: block;
    padding: 12px 16px;
    border-radius: 12px;
    font-weight: 500;
    color: #334155;
}
.mobile-menu a:hover,
.mobile-menu a.active {
    background: #F1F5F9;
    color: var(--primary);
}
.hero-section {
    padding-top: 140px;
    padding-bottom: 70px;
    background: linear-gradient(135deg, #EFF6FF 0%, #F8FAFC 55%, #FFFFFF 100%);
}
.hero-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: #0F172A;
    line-height: 1.2;
    letter-spacing: -0.01em;
}
@media (min-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    border-radius: 12px;
    padding: 14px 28px;
    font-size: 1rem;
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 16px rgba(29, 78, 216, 0.25);
    border: none;
    cursor: pointer;
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(29, 78, 216, 0.3);
}
.btn-primary:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    color: var(--primary);
    font-weight: 600;
    border-radius: 12px;
    padding: 13px 27px;
    font-size: 1rem;
    border: 1.5px solid #E2E8F0;
    transition: border-color 0.2s, background 0.2s;
    cursor: pointer;
}
.btn-secondary:hover {
    border-color: #93C5FD;
    background: #F0F9FF;
}
.btn-secondary:focus-visible {
    outline: 2px solid #93C5FD;
    outline-offset: 2px;
}
.btn-accent {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    border-radius: 12px;
    padding: 12px 24px;
    font-size: 0.95rem;
    transition: background 0.2s, transform 0.2s;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.25);
}
.btn-accent:hover {
    background: #EA580C;
    transform: translateY(-1px);
}
.section-tag {
    display: inline-block;
    background: #EFF6FF;
    color: var(--primary);
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 9999px;
}
.card-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card-hover:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}
.feature-card {
    background: #fff;
    border: 1px solid #F0F1F3;
    border-radius: 16px;
    padding: 28px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary);
    opacity: 0;
    transition: opacity 0.3s;
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.feature-card:hover::before {
    opacity: 1;
}
.faq-details {
    background: #fff;
    border: 1px solid #E2E8F0;
    border-radius: 16px;
    padding: 22px 24px;
    margin-bottom: 12px;
    transition: border-color 0.2s;
}
.faq-details:hover {
    border-color: #BFDBFE;
}
.faq-details summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    font-weight: 600;
    color: #1E293B;
    list-style: none;
}
.faq-details summary::-webkit-details-marker {
    display: none;
}
.faq-details summary .icon-wrap {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: #EFF6FF;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s;
    flex-shrink: 0;
}
.faq-details[open] summary .icon-wrap {
    transform: rotate(45deg);
}
.faq-details .faq-answer {
    margin-top: 14px;
    color: #64748B;
    line-height: 1.8;
    font-size: 0.95rem;
}
.stat-card {
    text-align: center;
    padding: 20px 12px;
}
.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
}
@media (min-width: 768px) {
    .stat-card .stat-value {
        font-size: 2.5rem;
    }
}
.stat-card .stat-label {
    margin-top: 8px;
    color: #94A3B8;
    font-size: 0.875rem;
}
.news-card {
    background: #fff;
    border: 1px solid #F0F1F3;
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}
.news-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}
.news-card .news-cover {
    height: 180px;
    overflow: hidden;
    background: #F1F5F9;
}
.news-card .news-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.news-card:hover .news-cover img {
    transform: scale(1.03);
}
.news-card .news-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.news-card .news-title {
    font-weight: 700;
    color: #1E293B;
    font-size: 1.05rem;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-top: 10px;
}
.news-card .news-summary {
    color: #64748B;
    font-size: 0.875rem;
    margin-top: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-card .news-meta {
    margin-top: auto;
    padding-top: 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid #F8FAFC;
}
.sticky-convert {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(6px);
    border-top: 1px solid #E2E8F0;
    box-shadow: 0 -6px 20px rgba(0, 0, 0, 0.04);
    z-index: 40;
    padding: 12px 20px;
}
.sticky-convert .inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
.sticky-convert p {
    font-weight: 500;
    color: #334155;
    font-size: 0.9rem;
}
@media (max-width: 520px) {
    .sticky-convert p {
        font-size: 0.82rem;
    }
}
.footer {
    background: #0F172A;
    color: #94A3B8;
    padding-top: 64px;
    padding-bottom: 40px;
}
.footer a {
    color: #94A3B8;
}
.footer a:hover {
    color: #fff;
}
.footer .footer-title {
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
}
.footer .footer-logo {
    color: #fff;
    font-weight: 700;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 8px;
}
@media (max-width: 640px) {
    .hero-title {
        font-size: 1.875rem;
    }
    .btn-primary,
    .btn-secondary {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
}

/* roulang page: category1 */
:root {
            --primary: #1D4ED8;
            --primary-dark: #1E3A8A;
            --primary-light: #DBEAFE;
            --accent: #F97316;
            --accent-dark: #EA580C;
            --bg: #F8FAFC;
            --card: #FFFFFF;
            --text: #1F2937;
            --text-muted: #6B7280;
            --border: #E5E7EB;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 10px 30px rgba(30, 64, 175, 0.08);
            --shadow-hover: 0 16px 40px rgba(30, 64, 175, 0.12);
            --font: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        img {
            display: block;
            max-width: 100%;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-space {
            padding: 80px 0;
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 800;
            color: var(--text);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-top: 8px;
        }
        @media (min-width: 768px) {
            .section-title {
                font-size: 2.25rem;
            }
        }

        /* ===== Dock Navigation ===== */
        .dock-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 100;
            display: flex;
            justify-content: center;
            pointer-events: none;
        }
        .dock-nav {
            max-width: 1024px;
            width: 92%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            border: 1px solid rgba(226, 232, 240, 0.6);
            border-radius: 999px;
            padding: 10px 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
            pointer-events: auto;
            transition: box-shadow 0.3s;
        }
        .dock-nav:hover {
            box-shadow: 0 14px 38px rgba(0, 0, 0, 0.08);
        }
        .dock-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.125rem;
            color: var(--text);
            white-space: nowrap;
        }
        .logo-badge {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .dock-links {
            display: flex;
            align-items: center;
            gap: 2px;
        }
        .dock-links a {
            padding: 8px 14px;
            border-radius: 999px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all 0.25s;
            line-height: 1.2;
        }
        .dock-links a:hover {
            color: var(--primary);
            background: var(--primary-light);
        }
        .dock-links a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
        }
        .dock-actions {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .dock-search {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            transition: all 0.2s;
        }
        .dock-search:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .dock-search:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .dock-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 38px;
            padding: 0 18px;
            border-radius: 999px;
            background: var(--primary);
            color: #fff;
            font-size: 0.875rem;
            font-weight: 600;
            transition: all 0.2s;
            white-space: nowrap;
        }
        .dock-cta:hover {
            background: var(--primary-dark);
        }
        .dock-cta:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .dock-burger {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg);
            border: 1px solid var(--border);
            align-items: center;
            justify-content: center;
            color: var(--text);
            transition: all 0.2s;
        }
        .dock-burger:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .mobile-menu {
            position: absolute;
            top: calc(100% + 8px);
            left: 50%;
            transform: translateX(-50%) translateY(-8px);
            width: 92%;
            max-width: 1024px;
            background: rgba(255, 255, 255, 0.98);
            border-radius: 20px;
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(226, 232, 240, 0.8);
            padding: 12px;
            z-index: 99;
            display: flex;
            flex-direction: column;
            gap: 4px;
            opacity: 0;
            visibility: hidden;
            transition: all 0.25s;
        }
        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: all 0.2s;
        }
        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
            background: var(--primary-light);
        }
        @media (max-width: 768px) {
            .dock-nav {
                width: 94%;
                border-radius: 20px;
                padding: 10px 14px;
            }
            .dock-links {
                display: none;
            }
            .dock-burger {
                display: flex;
            }
            .dock-cta {
                display: none;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            padding: 150px 0 70px;
            background: linear-gradient(180deg, #EFF6FF 0%, #F8FAFC 100%);
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            pointer-events: none;
        }
        .hero-content {
            position: relative;
        }
        .hero-breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8rem;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.8);
            border: 1px solid var(--border);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
        }
        .hero-breadcrumb a {
            color: var(--primary);
            font-weight: 500;
        }
        .hero-title {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text);
            line-height: 1.25;
            margin-bottom: 14px;
        }
        .hero-title span {
            color: var(--primary);
        }
        .hero-desc {
            font-size: 1rem;
            color: var(--text-muted);
            max-width: 540px;
            line-height: 1.8;
            margin-bottom: 28px;
        }
        .hero-actions {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .hero-visual {
            position: relative;
        }
        .hero-img {
            border-radius: 24px;
            object-fit: cover;
            width: 100%;
            height: 320px;
            box-shadow: var(--shadow-hover);
        }
        .hero-float-card {
            position: absolute;
            bottom: 18px;
            left: 18px;
            right: 18px;
            background: rgba(255, 255, 255, 0.94);
            border-radius: 16px;
            padding: 14px 18px;
            display: flex;
            align-items: center;
            gap: 12px;
            box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(226, 232, 240, 0.6);
        }
        .hero-float-badge {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .hero-float-text {
            font-size: 0.825rem;
            color: var(--text-muted);
            line-height: 1.5;
        }
        .hero-float-text strong {
            display: block;
            color: var(--text);
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            .hero-section {
                padding: 130px 0 50px;
            }
            .hero-title {
                font-size: 1.875rem;
            }
            .hero-img {
                height: 230px;
                margin-top: 24px;
            }
        }

        /* ===== Feature Cards ===== */
        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 32px 28px;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--primary);
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            margin-bottom: 18px;
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.825rem;
            font-weight: 600;
            color: var(--primary);
            margin-top: 14px;
            transition: gap 0.2s;
        }
        .feature-link:hover {
            gap: 10px;
        }

        /* ===== Content Cards ===== */
        .content-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card-media {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .card-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }
        .content-card:hover .card-media img {
            transform: scale(1.04);
        }
        .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }
        .card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-body h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-body p {
            font-size: 0.825rem;
            color: var(--text-muted);
            line-height: 1.65;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 14px;
            font-size: 0.75rem;
            color: var(--text-muted);
            border-top: 1px solid var(--bg);
            padding-top: 12px;
        }
        .card-meta a {
            color: var(--primary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.2s;
        }
        .card-meta a:hover {
            gap: 8px;
        }

        /* ===== Process ===== */
        .process-card {
            text-align: center;
            padding: 32px 24px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 18px;
            transition: all 0.3s;
        }
        .process-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.125rem;
            font-weight: 700;
            margin: 0 auto 14px;
        }
        .process-card h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .process-card p {
            font-size: 0.85rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== Value ===== */
        .value-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 28px;
            transition: all 0.3s;
        }
        .value-item:hover {
            box-shadow: var(--shadow-hover);
            border-color: #BFDBFE;
        }
        .value-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: var(--accent);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            margin-bottom: 14px;
        }
        .value-item h3 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .value-item p {
            font-size: 0.825rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-item {
            border: 1px solid var(--border);
            border-radius: 14px;
            background: var(--card);
            overflow: hidden;
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .faq-item.active {
            border-color: var(--primary);
            box-shadow: 0 4px 14px rgba(29, 78, 216, 0.06);
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            background: none;
            border: none;
            font-weight: 600;
            text-align: left;
            font-size: 0.95rem;
            color: var(--text);
            transition: background 0.2s;
        }
        .faq-question:hover {
            background: #F1F5F9;
        }
        .faq-icon {
            transition: transform 0.3s;
            color: var(--text-muted);
            font-size: 0.9rem;
            flex-shrink: 0;
            margin-left: 12px;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.75;
            padding: 0 1.5rem;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding-bottom: 1.25rem;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1D4ED8 0%, #1E3A8A 100%);
            border-radius: 24px;
            padding: 52px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -60%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
        }
        .cta-section h2 {
            font-size: 1.75rem;
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-section p {
            font-size: 0.95rem;
            opacity: 0.9;
            max-width: 560px;
            margin: 0 auto 28px;
            position: relative;
        }
        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border-radius: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 0.95rem;
            font-weight: 700;
            transition: all 0.25s;
            position: relative;
            border: none;
        }
        .btn-accent:hover {
            background: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(249, 115, 22, 0.3);
        }
        .btn-accent:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 2px;
        }
        @media (max-width: 640px) {
            .cta-section {
                padding: 36px 24px;
                border-radius: 18px;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
        }

        /* ===== Footer ===== */
        .footer {
            background: #0F172A;
            color: #94A3B8;
            padding: 64px 0 28px;
            margin-top: 60px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            color: #fff;
            font-size: 1.125rem;
        }
        .footer-title {
            font-size: 0.875rem;
            font-weight: 600;
            color: #E2E8F0;
            margin-bottom: 0;
        }
        .footer a {
            transition: color 0.2s;
        }
        .footer a:hover {
            color: #fff;
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 46px;
            padding: 0 26px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            transition: all 0.2s;
            border: none;
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(29, 78, 216, 0.2);
        }
        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 46px;
            padding: 0 26px;
            border-radius: 12px;
            background: #fff;
            border: 1.5px solid var(--border);
            color: var(--text);
            font-size: 0.9rem;
            font-weight: 600;
            transition: all 0.2s;
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
        }
        .btn-outline:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

/* roulang page: article */
:root {
        --blue-600: #1D4ED8;
        --blue-800: #1E3A8A;
        --blue-50: #EFF6FF;
        --orange-500: #F97316;
        --slate-50: #F8FAFC;
        --white: #FFFFFF;
        --text-main: #1F2937;
        --text-muted: #6B7280;
        --border: #E5E7EB;
        --radius-card: 16px;
        --radius-btn: 10px;
        --shadow-card: 0 10px 30px rgba(30, 64, 175, 0.08);
        --shadow-hover: 0 16px 40px rgba(30, 64, 175, 0.12);
    }

    * {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        background: var(--slate-50);
        color: var(--text-main);
        line-height: 1.75;
        padding-bottom: 80px;
        -webkit-font-smoothing: antialiased;
    }

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

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

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

    .container {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 24px;
    }

    /* ===== Dock 导航 ===== */
    .dock-header {
        position: fixed;
        top: 16px;
        left: 0;
        right: 0;
        z-index: 50;
        padding: 0 16px;
        pointer-events: none;
    }

    .dock-nav {
        max-width: 1024px;
        margin: 0 auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(8px);
        border: 1px solid rgba(226, 232, 240, 0.6);
        border-radius: 999px;
        box-shadow: 0 4px 24px rgba(30, 64, 175, 0.08);
        padding: 8px 12px 8px 20px;
        pointer-events: auto;
        transition: box-shadow .3s ease;
    }

    .dock-nav:hover {
        box-shadow: 0 8px 32px rgba(30, 64, 175, 0.12);
    }

    .dock-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 800;
        font-size: 1.125rem;
        color: var(--text-main);
        white-space: nowrap;
    }

    .logo-badge {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        background: var(--blue-600);
        color: #fff;
        border-radius: 50%;
        font-size: .75rem;
        font-weight: 700;
        letter-spacing: .02em;
    }

    .dock-links {
        display: flex;
        align-items: center;
        gap: 4px;
    }

    .dock-links a {
        padding: 8px 16px;
        border-radius: 999px;
        font-size: .9375rem;
        font-weight: 500;
        color: var(--text-muted);
        transition: all .2s ease;
    }

    .dock-links a:hover {
        color: var(--blue-600);
        background: var(--blue-50);
    }

    .dock-links a.active {
        color: var(--blue-600);
        background: var(--blue-50);
        font-weight: 600;
    }

    .dock-actions {
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .dock-search {
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--slate-50);
        border: 1px solid var(--border);
        border-radius: 50%;
        color: var(--text-muted);
        transition: all .2s ease;
        cursor: pointer;
    }

    .dock-search:hover {
        color: var(--blue-600);
        border-color: var(--blue-600);
        background: var(--blue-50);
    }

    .dock-cta {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 10px 22px;
        background: var(--blue-600);
        color: #fff;
        border-radius: 999px;
        font-size: .9375rem;
        font-weight: 600;
        transition: all .2s ease;
        white-space: nowrap;
    }

    .dock-cta:hover {
        background: var(--blue-800);
        box-shadow: 0 8px 20px rgba(30, 64, 175, 0.25);
        transform: translateY(-1px);
        color: #fff;
    }

    .dock-cta:active {
        transform: translateY(0);
        box-shadow: none;
    }

    .dock-burger {
        display: none;
        width: 40px;
        height: 40px;
        align-items: center;
        justify-content: center;
        background: var(--slate-50);
        border: 1px solid var(--border);
        border-radius: 50%;
        color: var(--text-main);
        cursor: pointer;
        transition: all .2s ease;
    }

    .dock-burger:hover {
        background: var(--blue-50);
        color: var(--blue-600);
        border-color: var(--blue-600);
    }

    .mobile-menu {
        display: none;
        max-width: 1024px;
        margin: 12px auto 0;
        background: #fff;
        border: 1px solid rgba(226, 232, 240, 0.6);
        border-radius: 20px;
        box-shadow: 0 12px 32px rgba(30, 64, 175, 0.12);
        padding: 14px;
        flex-direction: column;
        gap: 4px;
        pointer-events: auto;
    }

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

    .mobile-menu a {
        padding: 10px 16px;
        border-radius: 12px;
        font-weight: 500;
        color: var(--text-muted);
        transition: all .2s ease;
    }

    .mobile-menu a:hover,
    .mobile-menu a.active {
        background: var(--blue-50);
        color: var(--blue-600);
    }

    /* ===== 文章头区 ===== */
    .article-hero {
        padding: 140px 0 56px;
        background: linear-gradient(180deg, #EFF6FF 0%, #F8FAFC 100%);
        border-bottom: 1px solid #EFF1F5;
    }

    .breadcrumb {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px;
        font-size: .875rem;
        color: var(--text-muted);
        margin-bottom: 20px;
    }

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

    .breadcrumb a:hover {
        color: var(--blue-600);
    }

    .breadcrumb-sep {
        color: #CBD5E1;
    }

    .breadcrumb-current {
        color: var(--text-main);
        font-weight: 500;
        max-width: 400px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .article-title {
        font-size: clamp(1.875rem, 4vw, 3rem);
        font-weight: 800;
        line-height: 1.25;
        color: var(--text-main);
        letter-spacing: -0.01em;
        max-width: 820px;
        margin-bottom: 20px;
    }

    .article-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        color: var(--text-muted);
        font-size: .875rem;
    }

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

    .article-meta i {
        color: var(--blue-600);
        font-size: .8125rem;
    }

    /* ===== 正文阅读区 ===== */
    .article-main {
        padding: 56px 0 72px;
    }

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

    .article-body {
        font-size: 1.0625rem;
        line-height: 1.9;
        color: #374151;
    }

    .article-body h2 {
        font-size: 1.625rem;
        font-weight: 700;
        color: var(--text-main);
        margin: 2.25rem 0 1rem;
        letter-spacing: -0.01em;
    }

    .article-body h3 {
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--text-main);
        margin: 1.75rem 0 .75rem;
    }

    .article-body p {
        margin: 1rem 0;
        line-height: 1.9;
    }

    .article-body a {
        color: var(--blue-600);
        text-decoration: underline;
        text-underline-offset: 3px;
    }

    .article-body a:hover {
        color: var(--blue-800);
    }

    .article-body ul,
    .article-body ol {
        margin: 1rem 0;
        padding-left: 1.5rem;
    }

    .article-body ul {
        list-style: disc;
    }

    .article-body ol {
        list-style: decimal;
    }

    .article-body li {
        margin: .5rem 0;
    }

    .article-body blockquote {
        border-left: 4px solid var(--blue-600);
        background: var(--blue-50);
        padding: 1rem 1.5rem;
        border-radius: 0 12px 12px 0;
        margin: 1.75rem 0;
        color: var(--text-main);
        font-weight: 500;
    }

    .article-body img {
        border-radius: 12px;
        margin: 1.75rem 0;
        width: 100%;
        height: auto;
        object-fit: cover;
        box-shadow: var(--shadow-card);
    }

    .article-body strong {
        font-weight: 700;
        color: var(--text-main);
    }

    /* ===== 内容未找到 ===== */
    .not-found-box {
        text-align: center;
        padding: 90px 24px;
        background: #fff;
        border: 2px dashed #CBD5E1;
        border-radius: 20px;
        max-width: 720px;
        margin: 40px auto;
    }

    .not-found-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 64px;
        height: 64px;
        border-radius: 50%;
        background: var(--blue-50);
        color: var(--blue-600);
        font-size: 1.5rem;
        margin-bottom: 20px;
    }

    .not-found-box h2 {
        font-size: 1.875rem;
        font-weight: 800;
        color: var(--text-main);
    }

    .not-found-box p {
        color: var(--text-muted);
        margin: 12px 0 28px;
    }

    /* ===== 按钮 ===== */
    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 28px;
        background: var(--blue-600);
        color: #fff;
        border-radius: var(--radius-btn);
        font-weight: 600;
        font-size: .9375rem;
        transition: all .2s ease;
        border: 1px solid transparent;
    }

    .btn-primary:hover {
        background: var(--blue-800);
        transform: translateY(-1px);
        box-shadow: 0 8px 20px rgba(30, 64, 175, 0.25);
        color: #fff;
    }

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

    .btn-primary:focus-visible {
        outline: 2px solid var(--blue-600);
        outline-offset: 3px;
    }

    .btn-secondary {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 28px;
        background: #fff;
        color: var(--blue-600);
        border: 1px solid #BFDBFE;
        border-radius: var(--radius-btn);
        font-weight: 600;
        font-size: .9375rem;
        transition: all .2s ease;
    }

    .btn-secondary:hover {
        border-color: var(--blue-600);
        background: var(--blue-50);
        transform: translateY(-1px);
    }

    .btn-accent {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 28px;
        background: var(--orange-500);
        color: #fff;
        border-radius: var(--radius-btn);
        font-weight: 600;
        font-size: .9375rem;
        transition: all .2s ease;
        border: 1px solid transparent;
    }

    .btn-accent:hover {
        background: #EA580C;
        transform: translateY(-1px);
        box-shadow: 0 8px 20px rgba(249, 115, 22, 0.25);
        color: #fff;
    }

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

    /* ===== 相关推荐 ===== */
    .related-section {
        padding: 72px 0;
        background: #fff;
        border-top: 1px solid #F1F5F9;
    }

    .section-title {
        font-size: 1.875rem;
        font-weight: 700;
        color: var(--text-main);
        margin-bottom: 8px;
        letter-spacing: -0.01em;
    }

    .section-subtitle {
        color: var(--text-muted);
        font-size: .9375rem;
        margin-bottom: 36px;
    }

    .news-card {
        background: #fff;
        border: 1px solid var(--border);
        border-radius: var(--radius-card);
        overflow: hidden;
        box-shadow: var(--shadow-card);
        transition: all .3s ease;
        height: 100%;
        display: flex;
        flex-direction: column;
    }

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

    .news-cover {
        position: relative;
        aspect-ratio: 16 / 10;
        overflow: hidden;
        background: var(--blue-50);
    }

    .news-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .4s ease;
    }

    .news-card:hover .news-cover img {
        transform: scale(1.04);
    }

    .news-badge {
        position: absolute;
        top: 12px;
        left: 12px;
        background: rgba(29, 78, 216, 0.92);
        color: #fff;
        padding: 4px 12px;
        border-radius: 999px;
        font-size: .75rem;
        font-weight: 600;
        letter-spacing: .01em;
    }

    .news-body {
        padding: 22px;
        display: flex;
        flex-direction: column;
        flex: 1;
    }

    .news-body h3 {
        font-size: 1.125rem;
        font-weight: 700;
        line-height: 1.5;
        margin-bottom: 8px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        color: var(--text-main);
    }

    .news-body p {
        font-size: .9375rem;
        color: var(--text-muted);
        line-height: 1.7;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .news-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-top: auto;
        padding-top: 14px;
        font-size: .8125rem;
        color: var(--text-muted);
    }

    .news-meta a {
        color: var(--blue-600);
        font-weight: 600;
        display: inline-flex;
        align-items: center;
        gap: 4px;
        transition: color .2s ease;
    }

    .news-meta a:hover {
        color: var(--blue-800);
    }

    /* ===== 底部固定转化条 ===== */
    .sticky-cta {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 40;
        background: rgba(255, 255, 255, 0.96);
        backdrop-filter: blur(8px);
        border-top: 1px solid rgba(226, 232, 240, 0.6);
        box-shadow: 0 -4px 20px rgba(30, 64, 175, 0.06);
        padding: 14px 0;
    }

    .sticky-cta .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
    }

    .sticky-cta p {
        font-weight: 600;
        color: var(--text-main);
        font-size: .9375rem;
        margin: 0;
    }

    .sticky-cta .btn-accent {
        padding: 10px 22px;
        font-size: .875rem;
    }

    /* ===== 页脚 ===== */
    .footer {
        background: #0F172A;
        color: #94A3B8;
        padding: 64px 0 32px;
    }

    .footer-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        color: #fff;
        font-size: 1.25rem;
        font-weight: 800;
    }

    .footer-title {
        color: #E2E8F0;
        font-size: 1rem;
        font-weight: 600;
        margin: 0;
    }

    .footer a {
        color: #94A3B8;
        transition: color .2s ease;
    }

    .footer a:hover {
        color: #fff;
    }

    .footer-logo a:hover {
        color: #fff;
    }

    /* ===== 响应式 ===== */
    @media (max-width: 768px) {
        .dock-links {
            display: none;
        }

        .dock-burger {
            display: flex;
        }

        .dock-search {
            display: none;
        }

        .article-hero {
            padding: 120px 0 40px;
        }

        .article-title {
            font-size: 1.875rem;
        }

        .article-main {
            padding: 40px 0 56px;
        }

        .related-section {
            padding: 56px 0;
        }

        .sticky-cta p {
            font-size: .8125rem;
            max-width: 62%;
        }
    }

    @media (max-width: 640px) {
        .dock-nav {
            border-radius: 24px;
            padding: 8px 12px 8px 16px;
        }

        .dock-logo span:last-child {
            font-size: 1rem;
        }

        .dock-cta {
            padding: 8px 16px;
            font-size: .8125rem;
        }

        .article-meta {
            gap: 10px;
            font-size: .8125rem;
        }

        .breadcrumb {
            font-size: .8125rem;
        }

        .section-title {
            font-size: 1.5rem;
        }

        .sticky-cta .btn-accent {
            padding: 8px 16px;
            font-size: .8125rem;
        }

        .news-body {
            padding: 18px;
        }
    }

/* roulang page: category3 */
:root {
            --bg: #F8FAFC;
            --card: #FFFFFF;
            --primary: #1D4ED8;
            --primary-dark: #1E3A8A;
            --accent: #F97316;
            --text: #1F2937;
            --muted: #6B7280;
            --border: #E5E7EB;
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-card: 0 10px 30px rgba(30, 64, 175, 0.08);
            --shadow-hover: 0 16px 40px rgba(30, 64, 175, 0.12);
            --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            padding-top: 72px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
        }

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

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

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== Dock 导航 ===== */
        .dock-header {
            position: fixed;
            top: 16px;
            left: 0;
            right: 0;
            z-index: 50;
            display: flex;
            justify-content: center;
            padding: 0 16px;
        }

        .dock-nav {
            width: 100%;
            max-width: 1024px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 20px;
            background: rgba(255, 255, 255, 0.96);
            border: 1px solid rgba(226, 232, 240, 0.6);
            border-radius: 999px;
            box-shadow: 0 10px 30px rgba(30, 64, 175, 0.08);
            transition: box-shadow 0.3s ease;
        }

        .dock-nav:hover {
            box-shadow: 0 14px 36px rgba(30, 64, 175, 0.12);
        }

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

        .logo-badge {
            width: 32px;
            height: 32px;
            border-radius: 999px;
            background: var(--primary);
            color: #fff;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0;
        }

        .dock-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .dock-links a {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--muted);
        }

        .dock-links a:hover {
            color: var(--primary);
            background: rgba(29, 78, 216, 0.06);
        }

        .dock-links a.active {
            color: #fff;
            background: var(--primary);
        }

        .dock-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .dock-search {
            width: 38px;
            height: 38px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--muted);
            background: rgba(241, 245, 249, 0.8);
            transition: background 0.2s ease, color 0.2s ease;
        }

        .dock-search:hover {
            color: var(--primary);
            background: rgba(29, 78, 216, 0.08);
        }

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

        .dock-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 999px;
            background: var(--primary);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 600;
            white-space: nowrap;
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }

        .dock-cta:hover {
            background: var(--primary-dark);
            box-shadow: 0 10px 24px rgba(29, 78, 216, 0.25);
            transform: translateY(-1px);
        }

        .dock-cta:focus-visible {
            outline: 2px solid var(--primary-dark);
            outline-offset: 2px;
        }

        .dock-cta:active {
            background: #172e56;
            transform: translateY(0);
        }

        .dock-burger {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: 999px;
            align-items: center;
            justify-content: center;
            color: var(--text);
            background: rgba(241, 245, 249, 0.8);
        }

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

        .mobile-menu {
            display: none;
            margin-top: 10px;
            background: rgba(255, 255, 255, 0.97);
            border: 1px solid rgba(226, 232, 240, 0.6);
            border-radius: 20px;
            padding: 12px;
            box-shadow: 0 16px 40px rgba(30, 64, 175, 0.1);
        }

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

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: 12px;
            font-size: 0.95rem;
            color: var(--muted);
        }

        .mobile-menu a:hover {
            background: rgba(29, 78, 216, 0.05);
            color: var(--primary);
        }

        .mobile-menu a.active {
            color: var(--primary);
            font-weight: 600;
            background: rgba(29, 78, 216, 0.06);
        }

        @media (max-width: 900px) {
            .dock-links {
                display: none;
            }
            .dock-cta {
                display: none;
            }
            .dock-burger {
                display: inline-flex;
            }
        }

        /* ===== 通用按钮 ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            background: var(--primary);
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            box-shadow: 0 8px 20px rgba(29, 78, 216, 0.18);
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(29, 78, 216, 0.25);
        }

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

        .btn-primary:active {
            transform: translateY(0);
            background: #172e56;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: var(--radius-btn);
            background: #fff;
            border: 1px solid #cbd5e1;
            color: var(--primary);
            font-size: 0.95rem;
            font-weight: 600;
            transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(29, 78, 216, 0.1);
        }

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

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: var(--radius-btn);
            background: var(--accent);
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            box-shadow: 0 8px 22px rgba(249, 115, 22, 0.25);
            transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
        }

        .btn-accent:hover {
            background: #ea580c;
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(249, 115, 22, 0.3);
        }

        .btn-accent:focus-visible {
            outline: 2px solid #ea580c;
            outline-offset: 3px;
        }

        /* ===== Hero ===== */
        .hero-category {
            position: relative;
            padding: 64px 0 72px;
            background: linear-gradient(180deg, #EFF6FF 0%, #F8FAFC 100%);
            overflow: hidden;
        }

        .hero-category .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--muted);
            background: rgba(255, 255, 255, 0.7);
            border: 1px solid rgba(226, 232, 240, 0.8);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 22px;
        }

        .hero-category h1 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text);
            line-height: 1.25;
            margin: 0 0 16px;
        }

        .hero-category .subtitle {
            font-size: 1.06rem;
            color: var(--muted);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 30px;
        }

        .hero-image-wrap {
            position: relative;
            border-radius: 24px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }

        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .hero-float-card {
            position: absolute;
            bottom: 16px;
            left: 16px;
            right: 16px;
            background: rgba(255, 255, 255, 0.92);
            border: 1px solid rgba(226, 232, 240, 0.8);
            border-radius: 16px;
            padding: 14px 18px;
            backdrop-filter: blur(4px);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        @media (min-width: 1024px) {
            .hero-category {
                padding: 84px 0 96px;
            }
            .hero-category h1 {
                font-size: 3rem;
            }
        }

        @media (max-width: 767px) {
            .hero-image-wrap {
                margin-top: 32px;
            }
        }

        /* ===== 通用 section ===== */
        .section {
            padding: 72px 0;
        }

        .section-sm {
            padding: 56px 0;
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        .section-head .eyebrow {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(29, 78, 216, 0.08);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .section-head p {
            color: var(--muted);
            font-size: 0.98rem;
            line-height: 1.75;
            margin: 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 96px 0;
            }
            .section-head h2 {
                font-size: 2.25rem;
            }
        }

        /* ===== 卡片 ===== */
        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 26px;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

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

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.15rem;
            margin-bottom: 18px;
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 10px;
        }

        .feature-card p {
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== 内容卡片 ===== */
        .content-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            display: flex;
            flex-direction: column;
        }

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

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

        .content-card .cover-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .content-card .badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(255, 255, 255, 0.94);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
        }

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

        .content-card h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 10px;
            line-height: 1.45;
        }

        .content-card p {
            font-size: 0.88rem;
            color: var(--muted);
            line-height: 1.7;
            margin: 0;
            flex: 1;
        }

        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 18px;
            padding-top: 14px;
            border-top: 1px solid var(--border);
            font-size: 0.82rem;
            color: var(--muted);
        }

        .card-meta a {
            color: var(--primary);
            font-weight: 600;
        }

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

        /* ===== 图文场景 ===== */
        .scene-block {
            background: #fff;
            border-radius: 24px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
        }

        .scene-block img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .scene-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .scene-item {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .scene-item .num {
            flex-shrink: 0;
            width: 34px;
            height: 34px;
            border-radius: 999px;
            background: rgba(29, 78, 216, 0.08);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .scene-item h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 4px;
        }

        .scene-item p {
            font-size: 0.88rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.7;
        }

        /* ===== 步骤 ===== */
        .step-card {
            text-align: center;
            padding: 36px 24px;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

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

        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 999px;
            background: var(--primary);
            color: #fff;
            font-size: 1.3rem;
            font-weight: 800;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
        }

        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--text);
        }

        .step-card p {
            font-size: 0.9rem;
            color: var(--muted);
            line-height: 1.7;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .faq-item.open {
            border-color: rgba(29, 78, 216, 0.4);
            box-shadow: var(--shadow-card);
        }

        .faq-question {
            padding: 22px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            transition: color 0.2s ease;
            width: 100%;
            text-align: left;
            background: none;
        }

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

        .faq-question .icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 999px;
            background: rgba(29, 78, 216, 0.06);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            transition: transform 0.3s ease;
        }

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

        .faq-answer {
            display: none;
            padding: 0 24px 22px;
            font-size: 0.92rem;
            color: var(--muted);
            line-height: 1.8;
        }

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

        /* ===== CTA ===== */
        .cta-banner {
            position: relative;
            border-radius: 28px;
            overflow: hidden;
            background-size: cover;
            background-position: center;
        }

        .cta-banner .overlay {
            position: absolute;
            inset: 0;
            background: rgba(15, 23, 42, 0.78);
        }

        .cta-banner .content {
            position: relative;
            z-index: 1;
            padding: 56px 32px;
            text-align: center;
        }

        .cta-banner h2 {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            margin: 0 0 14px;
        }

        .cta-banner p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
            line-height: 1.8;
        }

        @media (min-width: 768px) {
            .cta-banner .content {
                padding: 72px 48px;
            }
            .cta-banner h2 {
                font-size: 2rem;
            }
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #0F172A;
            color: #CBD5E1;
            padding: 56px 0 28px;
            margin-top: 0;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
        }

        .footer-title {
            font-size: 0.95rem;
            font-weight: 600;
            color: #F1F5F9;
            margin-bottom: 8px;
        }

        .footer a {
            color: #94A3B8;
        }

        .footer a:hover {
            color: #fff;
        }

        /* ===== 搜索弹层 ===== */
        .search-overlay {
            position: fixed;
            inset: 0;
            z-index: 100;
            background: rgba(15, 23, 42, 0.45);
            backdrop-filter: blur(4px);
            display: none;
            align-items: flex-start;
            justify-content: center;
            padding: 100px 16px 16px;
        }

        .search-overlay.open {
            display: flex;
        }

        .search-panel {
            width: 100%;
            max-width: 560px;
            background: #fff;
            border-radius: 20px;
            padding: 24px;
            box-shadow: 0 24px 64px rgba(30, 64, 175, 0.18);
        }

        .search-panel input {
            width: 100%;
            height: 52px;
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 0 18px;
            font-size: 0.98rem;
            color: var(--text);
            background: #F8FAFC;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .search-panel input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.12);
            outline: none;
        }

        .search-panel .hint {
            margin-top: 14px;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .search-panel .hint a {
            font-size: 0.82rem;
            color: var(--primary);
            background: rgba(29, 78, 216, 0.06);
            padding: 6px 14px;
            border-radius: 999px;
        }

        .search-panel .hint a:hover {
            background: rgba(29, 78, 216, 0.12);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 640px) {
            body {
                padding-top: 64px;
            }

            .dock-header {
                top: 8px;
                padding: 0 12px;
            }

            .dock-nav {
                padding: 8px 14px;
            }

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

            .hero-category h1 {
                font-size: 1.75rem;
            }

            .section {
                padding: 48px 0;
            }

            .section-sm {
                padding: 36px 0;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .section-head h2 {
                font-size: 1.4rem;
            }

            .btn-primary,
            .btn-outline,
            .btn-accent {
                padding: 11px 20px;
                font-size: 0.9rem;
            }

            .feature-card {
                padding: 22px 18px;
            }

            .cta-banner .content {
                padding: 40px 20px;
            }

            .cta-banner h2 {
                font-size: 1.35rem;
            }
        }

        /* 焦点 & 可访问性 */
        a:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        ::selection {
            background: rgba(29, 78, 216, 0.15);
            color: var(--primary-dark);
        }

/* roulang page: category2 */
:root {
    --bg: #F8FAFC;
    --card: #FFFFFF;
    --primary: #1D4ED8;
    --primary-dark: #1E3A8A;
    --primary-deep: #172554;
    --accent: #F97316;
    --text: #1F2937;
    --text-muted: #6B7280;
    --border: #E5E7EB;
    --radius-card: 16px;
    --radius-btn: 10px;
    --shadow-card: 0 10px 30px rgba(30, 64, 175, 0.08);
    --shadow-card-hover: 0 16px 40px rgba(30, 64, 175, 0.12);
}
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 1rem;
    -webkit-font-smoothing: antialiased;
}
a {
    text-decoration: none;
    color: inherit;
}
img {
    display: block;
    max-width: 100%;
}
button {
    font-family: inherit;
    cursor: pointer;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Dock 导航 ---------- */
.dock-header {
    position: fixed;
    top: 16px;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 20px;
    pointer-events: none;
}
.dock-nav {
    max-width: 1024px;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(226, 232, 240, 0.6);
    border-radius: 999px;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 10px 30px rgba(30, 64, 175, 0.08);
    pointer-events: auto;
    backdrop-filter: blur(6px);
}
.dock-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    white-space: nowrap;
}
.logo-badge {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    flex-shrink: 0;
}
.dock-links {
    display: flex;
    align-items: center;
    gap: 6px;
}
.dock-links a {
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 0.93rem;
    font-weight: 500;
    color: var(--text);
    transition: all 0.2s;
}
.dock-links a:hover {
    background: #EFF6FF;
    color: var(--primary);
}
.dock-links a.active {
    background: #EFF6FF;
    color: var(--primary);
    font-weight: 600;
}
.dock-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}
.dock-search {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
}
.dock-search:hover {
    background: #EFF6FF;
    color: var(--primary);
}
.dock-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary);
    color: #fff;
    border-radius: 999px;
    padding: 8px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s;
    white-space: nowrap;
}
.dock-cta:hover {
    background: var(--primary-dark);
}
.dock-cta:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.dock-burger {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    border: none;
    background: #EFF6FF;
    color: var(--primary);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}
.dock-burger:hover {
    background: #DBEAFE;
}
.mobile-menu {
    display: none;
    max-width: 1024px;
    width: 100%;
    margin: 10px auto 0;
    background: #fff;
    border: 1px solid rgba(226, 232, 240, 0.8);
    border-radius: 16px;
    box-shadow: 0 16px 40px rgba(30, 64, 175, 0.12);
    padding: 12px;
    pointer-events: auto;
    flex-direction: column;
    gap: 2px;
}
.mobile-menu.open {
    display: flex;
}
.mobile-menu a {
    display: block;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
    transition: all 0.2s;
    text-align: center;
}
.mobile-menu a:hover {
    background: #F1F5F9;
}
.mobile-menu a.active {
    background: #EFF6FF;
    color: var(--primary);
    font-weight: 600;
}

/* ---------- 按钮 ---------- */
.btn-primary,
.btn-secondary,
.btn-accent {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: var(--radius-btn);
    transition: all 0.2s;
    font-size: 1rem;
    text-decoration: none;
    border: none;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}
.btn-primary:active {
    background: var(--primary-deep);
    transform: translateY(1px);
}
.btn-primary:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.btn-secondary {
    background: #fff;
    color: var(--primary);
    border: 1px solid var(--border);
}
.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary-dark);
    transform: translateY(-1px);
}
.btn-secondary:active {
    transform: translateY(1px);
}
.btn-secondary:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.btn-accent {
    background: var(--accent);
    color: #fff;
    padding: 14px 32px;
    margin-top: 24px;
}
.btn-accent:hover {
    background: #D96A0E;
    transform: translateY(-1px);
}
.btn-accent:active {
    transform: translateY(1px);
}
.btn-accent:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

/* ---------- Hero ---------- */
.hero-section {
    position: relative;
    padding: 160px 0 80px;
    background: linear-gradient(180deg, #EFF6FF 0%, #F8FAFC 100%);
    overflow: hidden;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #DBEAFE;
    color: var(--primary);
    border-radius: 999px;
    padding: 6px 16px;
    font-size: 0.875rem;
    font-weight: 600;
}
.hero-section h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text);
    margin: 20px 0 16px;
}
.hero-sub {
    font-size: 1.125rem;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 520px;
    margin-bottom: 32px;
}
.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.hero-visual {
    position: relative;
}
.hero-img {
    width: 100%;
    border-radius: 24px;
    object-fit: cover;
    box-shadow: 0 24px 60px rgba(30, 64, 175, 0.18);
    aspect-ratio: 4 / 3;
}
.hero-visual::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: rgba(29, 78, 216, 0.08);
    z-index: -1;
}
.hero-visual::after {
    content: '';
    position: absolute;
    bottom: -16px;
    left: -16px;
    width: 100px;
    height: 100px;
    border-radius: 24px;
    background: rgba(249, 115, 22, 0.1);
    z-index: -1;
}

/* ---------- 通用板块 ---------- */
.section {
    padding: 80px 0;
    background: var(--bg);
}
.section-alt {
    background: #fff;
}
.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 48px;
}
.section-tag {
    display: inline-block;
    background: #DBEAFE;
    color: var(--primary);
    padding: 4px 14px;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}
.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
    margin-top: 12px;
    line-height: 1.3;
}
.section-header p {
    color: var(--text-muted);
    margin-top: 12px;
    font-size: 1rem;
    line-height: 1.75;
}

/* ---------- 卖点卡片 ---------- */
.feature-card {
    position: relative;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 32px;
    transition: all 0.25s ease;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary);
    border-radius: 4px 4px 0 0;
}
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
    border-color: rgba(29, 78, 216, 0.3);
}
.feature-card .feature-num {
    position: absolute;
    top: 16px;
    right: 24px;
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    color: rgba(29, 78, 216, 0.06);
    pointer-events: none;
    user-select: none;
}
.feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: #EFF6FF;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 20px;
    transition: background 0.2s, color 0.2s;
}
.feature-card:hover .feature-icon {
    background: var(--primary);
    color: #fff;
}
.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}
.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.75;
}
.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 18px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: gap 0.2s, color 0.2s;
}
.feature-link:hover {
    gap: 10px;
    color: var(--primary-dark);
}
.feature-link:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ---------- 场景卡片 ---------- */
.scene-card {
    background: #fff;
    border-radius: var(--radius-card);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}
.scene-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
    border-color: rgba(29, 78, 216, 0.25);
}
.scene-card figure {
    height: 200px;
    overflow: hidden;
    position: relative;
}
.scene-card figure::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(15, 23, 42, 0.15));
}
.scene-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.scene-card:hover img {
    transform: scale(1.04);
}
.scene-card .scene-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.scene-tag {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    background: #EFF6FF;
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 999px;
    margin-bottom: 12px;
}
.scene-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}
.scene-card p {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ---------- 流程 ---------- */
.flow-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
}
.flow-steps::before {
    content: '';
    position: absolute;
    top: 48px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: repeating-linear-gradient(90deg, #DBEAFE 0 8px, transparent 8px 16px);
    z-index: 0;
    display: none;
}
@media (min-width: 1024px) {
    .flow-steps::before {
        display: block;
    }
}
.flow-step {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 28px 22px;
    text-align: center;
    box-shadow: var(--shadow-card);
    transition: all 0.25s;
    position: relative;
    z-index: 1;
}
.flow-step:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}
.step-num {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 6px 16px rgba(29, 78, 216, 0.25);
}
.flow-step h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}
.flow-step p {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.65;
}

/* ---------- FAQ ---------- */
.faq-list {
    max-width: 760px;
    margin: 0 auto;
}
.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.faq-item.open {
    border-color: var(--primary);
    box-shadow: 0 6px 20px rgba(29, 78, 216, 0.08);
}
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 24px;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
    transition: color 0.2s;
}
.faq-question:hover {
    color: var(--primary);
}
.faq-question:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: -2px;
    border-radius: 12px;
}
.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #EFF6FF;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    transition: transform 0.3s ease, background 0.2s, color 0.2s;
    flex-shrink: 0;
}
.faq-icon-rotate {
    transform: rotate(45deg);
    background: var(--primary);
    color: #fff;
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    color: var(--text-muted);
    font-size: 0.9375rem;
    line-height: 1.8;
    padding: 0 24px;
}
.faq-item.open .faq-answer {
    padding: 0 24px 22px;
}

/* ---------- CTA ---------- */
.cta-section {
    padding: 60px 0 100px;
    background: var(--bg);
}
.cta-box {
    background: #0F172A;
    border-radius: 24px;
    padding: 64px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-box::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -40px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(29, 78, 216, 0.35), transparent 70%);
}
.cta-box::after {
    content: '';
    position: absolute;
    bottom: -60px;
    left: -40px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.25), transparent 70%);
}
.cta-box h2 {
    color: #fff;
    font-size: 2rem;
    font-weight: 700;
    position: relative;
    z-index: 1;
}
.cta-box p {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 12px;
    font-size: 1rem;
    position: relative;
    z-index: 1;
}
.cta-box .btn-accent {
    position: relative;
    z-index: 1;
}

/* ---------- 页脚 ---------- */
.footer {
    background: #0F172A;
    color: #94A3B8;
    padding: 64px 0 40px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
}
.footer-title {
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
}
.footer a {
    color: #94A3B8;
    text-decoration: none;
    transition: color 0.2s;
}
.footer a:hover {
    color: #fff;
}
.footer a:focus-visible {
    outline: 2px solid #F97316;
    outline-offset: 2px;
    border-radius: 4px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
    .hero-section {
        padding: 140px 0 60px;
    }
    .flow-steps {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .dock-links,
    .dock-search,
    .dock-cta {
        display: none !important;
    }
    .dock-burger {
        display: flex !important;
    }
    .dock-nav {
        border-radius: 20px;
        padding: 8px 16px;
    }
    .hero-section {
        padding: 120px 0 48px;
    }
    .hero-section h1 {
        font-size: 1.875rem;
    }
    .hero-actions {
        flex-direction: column;
    }
    .hero-actions .btn-primary,
    .hero-actions .btn-secondary {
        justify-content: center;
        text-align: center;
    }
    .section {
        padding: 48px 0;
    }
    .section-header {
        margin-bottom: 32px;
    }
    .section-header h2 {
        font-size: 1.5rem;
    }
    .cta-box {
        padding: 48px 24px;
    }
    .cta-box h2 {
        font-size: 1.5rem;
    }
    .cta-section {
        padding: 40px 0 64px;
    }
}
@media (max-width: 640px) {
    .flow-steps {
        grid-template-columns: 1fr;
    }
    .hero-visual {
        margin-top: 32px;
    }
    .scene-card figure {
        height: 180px;
    }
    .container {
        padding: 0 20px;
    }
}