/* roulang page: index */
:root {
            --primary: #2B5FC8;
            --primary-dark: #1D3F8F;
            --accent: #00A884;
            --secondary: #6C8FCB;
            --bg: #F4F7FB;
            --card: #FFFFFF;
            --text: #1F2A44;
            --text-sub: #5A6B85;
            --border: #E3EAF2;
            --success: #00A884;
            --warning: #E8972C;
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, sans-serif;
            --radius: 16px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow-sm: 0 4px 20px rgba(31, 42, 68, 0.06);
            --shadow-md: 0 12px 32px rgba(31, 42, 68, 0.10);
            --transition: 0.2s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 1rem;
            margin: 0;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .section {
            padding: 64px 0;
        }

        .section-head {
            margin-bottom: 40px;
            text-align: center;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }

        .section-label {
            display: inline-block;
            background: #EDF2FB;
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: var(--radius-pill);
            padding: 4px 16px;
            letter-spacing: 0.04em;
            margin-bottom: 12px;
        }

        .section-head h2 {
            font-size: 1.75rem;
            font-weight: 600;
            line-height: 1.4;
            color: var(--text);
            margin-bottom: 8px;
        }

        .section-head p {
            color: var(--text-sub);
            font-size: 0.95rem;
            margin: 0;
        }

        /* ---------- Buttons ---------- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            line-height: 1.2;
            padding: 12px 28px;
            border: 1px solid transparent;
            transition: all 0.2s ease;
            text-decoration: none;
            cursor: pointer;
        }

        .btn:hover {
            text-decoration: none;
        }

        .btn:active {
            transform: scale(0.97);
        }

        .btn:focus-visible {
            outline: 3px solid rgba(43, 95, 200, 0.3);
            outline-offset: 2px;
        }

        .btn-accent {
            background: var(--accent);
            color: #ffffff !important;
            border-color: var(--accent);
            box-shadow: 0 4px 12px rgba(0, 168, 132, 0.25);
        }

        .btn-accent:hover {
            background: #009977;
            border-color: #009977;
            color: #ffffff !important;
            transform: translateY(-1px);
            box-shadow: 0 6px 18px rgba(0, 168, 132, 0.3);
        }

        .btn-primary {
            background: var(--primary);
            color: #ffffff !important;
            border-color: var(--primary);
            box-shadow: 0 4px 12px rgba(43, 95, 200, 0.25);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            border-color: var(--primary-dark);
            color: #ffffff !important;
            transform: translateY(-1px);
        }

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

        .btn-outline:hover {
            background: rgba(43, 95, 200, 0.06);
            border-color: var(--primary-dark);
            color: var(--primary-dark) !important;
        }

        .btn-light-outline {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: #ffffff !important;
        }

        .btn-light-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffffff !important;
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 0.875rem;
        }

        .btn-lg {
            padding: 15px 36px;
            font-size: 1.0625rem;
        }

        /* ---------- Header / Nav ---------- */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1050;
            background: rgba(244, 247, 251, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid transparent;
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .site-header.scrolled {
            background: #ffffff;
            box-shadow: 0 4px 16px rgba(31, 42, 68, 0.06);
            border-color: var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
            flex-wrap: wrap;
            position: relative;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            flex-shrink: 0;
        }

        .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.08em;
        }

        .logo-text {
            font-weight: 700;
            font-size: 1.0625rem;
            color: var(--text);
            white-space: nowrap;
        }

        .logo:hover {
            text-decoration: none;
        }

        .header-tabs-wrap {
            display: flex;
            align-items: center;
            justify-content: center;
            flex: 1 1 auto;
            min-width: 0;
        }

        .header-tabs {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: #ffffff;
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 4px;
            max-width: 100%;
            overflow-x: auto;
            scrollbar-width: none;
        }

        .header-tabs::-webkit-scrollbar {
            display: none;
        }

        .header-tab {
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-sub);
            white-space: nowrap;
            transition: all 0.2s ease;
            text-decoration: none;
        }

        .header-tab:hover {
            background: var(--bg);
            color: var(--text);
            text-decoration: none;
        }

        .header-tab.active {
            background: var(--primary);
            color: #ffffff;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .mobile-toggle {
            display: none;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--text);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .mobile-toggle:hover {
            background: var(--bg);
        }

        @media (max-width: 991.98px) {
            .header-inner {
                min-height: 64px;
                flex-wrap: nowrap;
            }

            .header-tabs-wrap {
                order: 3;
                width: 100%;
                flex-basis: 100%;
                display: none;
                padding-bottom: 12px;
            }

            .header-tabs-wrap.open {
                display: block;
            }

            .header-tabs {
                display: flex;
                width: 100%;
                border-radius: 12px;
                padding: 6px;
            }

            .header-tab {
                flex: 0 0 auto;
            }

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

            .header-actions .btn {
                display: none;
            }
        }

        @media (max-width: 575.98px) {
            .logo-text {
                font-size: 0.95rem;
            }
        }

        /* ---------- Hero ---------- */
        .hero {
            position: relative;
            padding: 72px 0 64px;
            background: var(--bg);
            min-height: 85vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            border: 56px solid rgba(43, 95, 200, 0.04);
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: 40px;
            left: 8%;
            width: 90px;
            height: 90px;
            border-radius: 50%;
            background: rgba(0, 168, 132, 0.04);
            pointer-events: none;
        }

        .hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 56px;
            align-items: center;
        }

        .hero-content {
            padding-right: 8%;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            border: 1px solid var(--border);
            color: var(--text-sub);
            font-size: 0.8rem;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            margin-bottom: 20px;
            box-shadow: var(--shadow-sm);
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
            animation: pulse 2s ease infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(0, 168, 132, 0.4);
            }
            50% {
                box-shadow: 0 0 0 5px rgba(0, 168, 132, 0);
            }
        }

        .hero h1 {
            font-size: clamp(2rem, 4vw, 2.75rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }

        .hero h1 .text-primary {
            color: var(--primary);
        }

        .hero-sub {
            font-size: 1.125rem;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 480px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 36px;
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .hero-metric {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-sub);
        }

        .hero-metric .metric-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
        }

        .hero-visual {
            position: relative;
        }

        .hero-image-wrap {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            background: #fff;
            border: 1px solid var(--border);
            aspect-ratio: 4 / 3;
        }

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

        .hero-float-card {
            position: absolute;
            left: -20px;
            bottom: 24px;
            background: #ffffff;
            border-radius: 14px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            padding: 14px 20px;
            display: flex;
            align-items: center;
            gap: 12px;
            animation: floatCard 4s ease-in-out infinite;
        }

        @keyframes floatCard {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-6px);
            }
        }

        .hero-float-card .float-pulse {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        .hero-float-card strong {
            display: block;
            font-size: 0.875rem;
            color: var(--text);
        }

        .hero-float-card small {
            display: block;
            font-size: 0.75rem;
            color: var(--text-sub);
        }

        /* ---------- Trust bar ---------- */
        .trust-strip {
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            background: #ffffff;
            padding: 18px 0;
        }

        .trust-items {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            align-items: center;
            gap: 10px 20px;
            font-size: 0.8125rem;
            color: var(--text-sub);
        }

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

        .trust-items span::before {
            content: '';
            width: 4px;
            height: 4px;
            border-radius: 50%;
            background: var(--secondary);
        }

        /* ---------- Features ---------- */
        .features-section {
            background: var(--bg);
        }

        .features-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 24px;
            align-items: stretch;
        }

        .feature-main {
            background: #EDF2FB;
            border-radius: var(--radius);
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            border: 1px solid #DFE8F7;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

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

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(43, 95, 200, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .feature-main h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 14px;
        }

        .feature-main p {
            color: var(--text-sub);
            font-size: 0.95rem;
            margin-bottom: 24px;
            line-height: 1.75;
        }

        .feature-link {
            font-weight: 600;
            color: var(--primary);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .feature-link:hover {
            color: var(--primary-dark);
        }

        .feature-side {
            display: grid;
            grid-template-rows: 1fr 1fr;
            gap: 24px;
        }

        .feature-card {
            background: var(--card);
            border-radius: var(--radius);
            padding: 24px;
            display: flex;
            gap: 16px;
            align-items: flex-start;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

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

        .feature-card .feature-icon {
            width: 44px;
            height: 44px;
            margin-bottom: 0;
            flex-shrink: 0;
            font-size: 1.1rem;
        }

        .feature-card h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .feature-card p {
            font-size: 0.85rem;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.6;
        }

        /* ---------- Scenario ---------- */
        .scenarios-section {
            background: #ffffff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .scenario-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            padding: 40px 0;
        }

        .scenario-block+.scenario-block {
            border-top: 1px solid var(--border);
        }

        .scenario-block.reverse .scenario-img {
            order: 2;
        }

        .scenario-block.reverse .scenario-content {
            order: 1;
        }

        .scenario-img {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            background: var(--bg);
            aspect-ratio: 4 / 3;
        }

        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .scenario-block:hover .scenario-img img {
            transform: scale(1.02);
        }

        .scenario-tag {
            display: inline-block;
            background: #EDF2FB;
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 16px;
        }

        .scenario-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 16px;
            line-height: 1.5;
        }

        .scenario-content p {
            color: var(--text-sub);
            font-size: 0.95rem;
            margin-bottom: 24px;
            line-height: 1.8;
        }

        .scenario-content .btn {
            min-width: 160px;
        }

        /* ---------- News / CMS ---------- */
        .news-section {
            background: var(--bg);
        }

        .news-grid {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 24px;
            align-items: start;
        }

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

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

        .news-featured>a {
            display: flex;
            flex-direction: column;
            height: 100%;
            padding: 0;
            color: inherit;
            text-decoration: none;
        }

        .news-featured>a:hover {
            color: inherit;
        }

        .news-featured .date-block {
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            padding: 20px 24px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .news-featured .date-block time {
            font-size: 0.875rem;
            color: var(--text-sub);
            font-weight: 500;
        }

        .news-featured .featured-content {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
        }

        .badge-cat {
            display: inline-block;
            background: #EDF2FB;
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 500;
            padding: 3px 12px;
            border-radius: var(--radius-pill);
            margin-bottom: 12px;
        }

        .news-featured h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .news-featured p {
            color: var(--text-sub);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 20px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-size: 0.875rem;
            font-weight: 600;
            margin-top: auto;
        }

        .news-featured:hover .read-more {
            color: var(--primary-dark);
        }

        .news-side {
            display: grid;
            gap: 24px;
        }

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

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

        .news-card>a {
            display: block;
            padding: 24px;
            color: inherit;
            text-decoration: none;
        }

        .news-card>a:hover {
            color: inherit;
        }

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

        .news-card .news-meta time {
            font-size: 0.75rem;
            color: var(--text-sub);
        }

        .news-card .news-meta .badge-cat {
            margin-bottom: 0;
        }

        .news-card h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
            overflow: hidden;
            transition: color 0.2s ease;
        }

        .news-card:hover h4 {
            color: var(--primary);
        }

        .news-card p {
            color: var(--text-sub);
            font-size: 0.85rem;
            line-height: 1.6;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-empty {
            grid-column: 1 / -1;
            background: var(--card);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            padding: 60px 24px;
            text-align: center;
            color: var(--text-sub);
        }

        /* ---------- Social proof ---------- */
        .proof-section {
            background: #ffffff;
            border-top: 1px solid var(--border);
        }

        .proof-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

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

        .stat-item {
            text-align: center;
            padding: 20px 12px;
            border-radius: var(--radius);
            background: var(--bg);
            border: 1px solid var(--border);
            transition: box-shadow 0.3s ease;
        }

        .stat-item:hover {
            box-shadow: var(--shadow-sm);
        }

        .stat-num {
            display: block;
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 4px;
        }

        .stat-num small {
            font-size: 1rem;
            font-weight: 600;
        }

        .stat-label {
            font-size: 0.8125rem;
            color: var(--text-sub);
        }

        .proof-quote {
            background: var(--bg);
            border-radius: var(--radius);
            padding: 32px;
            position: relative;
            border: 1px solid var(--border);
        }

        .quote-mark {
            position: absolute;
            top: 18px;
            left: 20px;
            font-size: 3rem;
            color: var(--secondary);
            line-height: 1;
            opacity: 0.5;
            font-family: Georgia, serif;
        }

        .proof-quote p {
            position: relative;
            font-size: 1rem;
            color: var(--text);
            line-height: 1.8;
            margin-bottom: 16px;
            padding-left: 24px;
            padding-top: 8px;
        }

        .quote-owner {
            display: block;
            font-size: 0.8125rem;
            color: var(--text-sub);
            padding-left: 24px;
        }

        /* ---------- FAQ ---------- */
        .faq-section {
            background: var(--bg);
        }

        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
            border-radius: var(--radius);
            background: var(--card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-sm);
            padding: 24px;
        }

        .accordion-item {
            border: none;
            border-bottom: 1px solid var(--border) !important;
            background: transparent;
        }

        .accordion-item:last-child {
            border-bottom: none !important;
        }

        .accordion-header {
            border-radius: 0;
            margin: 0;
        }

        .accordion-button {
            background: transparent;
            color: var(--text) !important;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 18px 8px;
            box-shadow: none;
            border-radius: 0 !important;
            border: none;
        }

        .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--primary) !important;
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(43, 95, 200, 0.12) !important;
            border-radius: 8px !important;
        }

        .accordion-button::after {
            background-image: none;
            content: '+';
            display: flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--primary);
            font-size: 1.15rem;
            font-weight: 400;
            line-height: 1;
            transition: all 0.25s ease;
        }

        .accordion-button:not(.collapsed)::after {
            content: '−';
            background: var(--primary);
            color: #fff;
            transform: rotate(0deg);
        }

        .accordion-collapse {
            transition: all 0.25s ease;
        }

        .accordion-body {
            padding: 0 8px 20px;
            color: var(--text-sub);
            font-size: 0.9rem;
            line-height: 1.8;
        }

        /* ---------- CTA ---------- */
        .cta-section {
            background: var(--primary-dark);
            color: #ffffff;
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            border: 40px solid rgba(255, 255, 255, 0.03);
        }

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

        .cta-inner h2 {
            color: #ffffff;
            font-size: 1.75rem;
            font-weight: 600;
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1rem;
            margin-bottom: 32px;
        }

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

        /* ---------- Floating CTA ---------- */
        .floating-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: #ffffff;
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 16px rgba(31, 42, 68, 0.08);
            padding: 12px 0;
            display: none;
            transform: translateY(0);
            transition: transform 0.3s ease;
        }

        .floating-cta.hidden {
            transform: translateY(100%);
        }

        .float-content {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
        }

        .float-text {
            font-size: 0.875rem;
            color: var(--text-sub);
        }

        .float-close {
            position: absolute;
            top: -16px;
            right: 12px;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--bg);
            border: 1px solid var(--border);
            color: var(--text-sub);
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            box-shadow: var(--shadow-sm);
            transition: all 0.2s ease;
        }

        .float-close:hover {
            background: #fff;
            color: var(--text);
        }

        @media (min-width: 992px) {
            .floating-cta {
                display: none !important;
            }
        }

        @media (max-width: 991.98px) {
            .floating-cta {
                display: block;
            }

            .site-footer {
                padding-bottom: 80px;
            }
        }

        /* ---------- Footer ---------- */
        .site-footer {
            background: #12234A;
            color: rgba(255, 255, 255, 0.75);
            padding: 64px 0 32px;
            font-size: 0.875rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 48px;
        }

        .footer-brand .footer-logo {
            font-size: 1.0625rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            font-size: 0.875rem;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #ffffff;
            font-size: 0.9375rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.875rem;
            margin-bottom: 10px;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .footer-col a:hover {
            color: #7FE0C8;
        }

        .footer-col p {
            margin-bottom: 10px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 12px;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.8125rem;
        }

        /* ---------- Responsive ---------- */
        @media (max-width: 991.98px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .hero-content {
                padding-right: 0;
            }

            .hero {
                min-height: auto;
                padding: 48px 0;
            }

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

            .feature-side {
                grid-template-rows: 1fr 1fr;
            }

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

            .scenario-block.reverse .scenario-img {
                order: 1;
            }

            .scenario-block.reverse .scenario-content {
                order: 2;
            }

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

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

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

        @media (max-width: 575.98px) {
            .section {
                padding: 40px 0;
            }

            .hero {
                padding: 40px 0;
            }

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

            .hero-metrics {
                gap: 16px;
            }

            .features-grid {
                gap: 16px;
            }

            .feature-main {
                padding: 24px;
            }

            .feature-card {
                padding: 18px;
            }

            .feature-side {
                gap: 16px;
            }

            .scenario-block {
                padding: 24px 0;
                gap: 24px;
            }

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

            .news-featured .featured-content {
                padding: 20px;
            }

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

            .faq-accordion {
                padding: 16px;
            }

            .cta-section {
                padding: 48px 0;
            }

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

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

            .float-content {
                padding-right: 40px;
            }

            .float-text {
                display: none;
            }

            .float-content .btn {
                width: 100%;
                max-width: 320px;
            }
        }

        @media (min-width: 576px) and (max-width: 991.98px) {
            .news-side {
                grid-template-columns: 1fr 1fr;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #2B5FC8;
            --primary-dark: #1D3F8F;
            --accent: #00A884;
            --secondary: #6C8FCB;
            --base: #F4F7FB;
            --card: #FFFFFF;
            --text: #1F2A44;
            --text-sub: #5A6B85;
            --border: #E3EAF2;
            --radius: 16px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow: 0 4px 20px rgba(31, 42, 68, 0.06);
            --shadow-hover: 0 12px 32px rgba(31, 42, 68, 0.10);
            --shadow-btn: 0 4px 12px rgba(43, 95, 200, 0.25);
            --shadow-btn-accent: 0 4px 12px rgba(0, 168, 132, 0.25);
            --transition: 0.2s ease;
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background: var(--base);
            color: var(--text);
            line-height: 1.8;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section {
            padding: 64px 0;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .section-head h2 {
            font-size: 1.75rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }
        .section-head p {
            color: var(--text-sub);
            font-size: 0.95rem;
        }
        .text-primary {
            color: var(--primary) !important;
        }
        .text-accent {
            color: var(--accent) !important;
        }

        /* 按钮体系 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: var(--radius-sm);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 0.95rem;
            line-height: 1.5;
            border: 1px solid transparent;
            transition: all var(--transition);
            white-space: nowrap;
            cursor: pointer;
        }
        .btn:focus-visible {
            outline: 3px solid rgba(43, 95, 200, 0.25);
            outline-offset: 2px;
        }
        .btn:active {
            transform: scale(0.97);
        }
        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: var(--shadow-btn-accent);
        }
        .btn-accent:hover {
            background: #009a7f;
            color: #fff;
            box-shadow: 0 6px 16px rgba(0, 168, 132, 0.32);
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
        }
        .btn-outline {
            background: transparent;
            border: 1px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline:hover {
            background: rgba(43, 95, 200, 0.06);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.875rem;
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 1rem;
        }
        .btn-text {
            background: none;
            padding: 8px 0;
            color: var(--primary);
            border: none;
            box-shadow: none;
        }
        .btn-text:hover {
            color: var(--primary-dark);
            background: none;
            transform: none;
        }

        /* 顶部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(244, 247, 251, 0.92);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid transparent;
            transition: box-shadow 0.25s ease, background 0.25s ease;
        }
        .site-header.scrolled {
            background: #ffffff;
            box-shadow: 0 4px 16px rgba(31, 42, 68, 0.08);
            border-bottom-color: var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 14px 0;
            min-height: 68px;
        }
        .header-logo {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            flex-shrink: 0;
            transition: color var(--transition);
        }
        .header-logo:hover {
            color: var(--primary);
        }
        .header-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 4px;
            flex: 1;
            max-width: 640px;
            margin: 0 auto;
            box-shadow: 0 2px 8px rgba(31, 42, 68, 0.04);
        }
        .header-tab {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 8px 18px;
            border-radius: var(--radius-pill);
            font-size: 0.875rem;
            font-weight: 500;
            color: var(--text-sub);
            border: none;
            background: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }
        .header-tab:hover {
            background: var(--base);
            color: var(--text);
        }
        .header-tab.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 2px 8px rgba(43, 95, 200, 0.2);
        }
        .header-cta {
            flex-shrink: 0;
            margin-left: 0;
            padding: 10px 22px;
            font-size: 0.875rem;
        }

        /* Hero 区 */
        .category-hero {
            position: relative;
            padding: 88px 0 72px;
            background: var(--base);
            overflow: hidden;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -60px;
            width: 320px;
            height: 320px;
            border: 2px solid var(--primary);
            border-radius: 50%;
            opacity: 0.06;
            pointer-events: none;
        }
        .category-hero::after {
            content: "";
            position: absolute;
            top: 120px;
            right: 180px;
            width: 120px;
            height: 120px;
            border: 2px solid var(--accent);
            border-radius: 50%;
            opacity: 0.05;
            pointer-events: none;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 0.8125rem;
            font-weight: 600;
            color: var(--text-sub);
            box-shadow: 0 2px 8px rgba(31, 42, 68, 0.04);
            margin-bottom: 20px;
        }
        .hero-badge i {
            color: var(--accent);
            font-size: 1rem;
        }
        .hero-title {
            font-size: clamp(2rem, 4vw, 2.75rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 18px;
            letter-spacing: -0.02em;
        }
        .hero-title .text-primary {
            color: var(--primary);
        }
        .hero-divider {
            margin: 0 8px;
            color: var(--secondary);
            font-weight: 300;
        }
        .hero-subtitle {
            font-size: 1.125rem;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 480px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .hero-image-wrap {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            border: 1px solid var(--border);
            background: #fff;
            min-height: 260px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .hero-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* 信任标识条 */
        .trust-bar {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 18px 0;
        }
        .trust-bar-inner {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 40px;
            align-items: center;
        }
        .trust-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.8125rem;
            color: var(--text-sub);
            font-weight: 500;
        }
        .trust-item i {
            color: var(--accent);
            font-size: 0.95rem;
        }

        /* 入口方式 */
        .entry-methods {
            background: var(--base);
        }
        .entry-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            margin-bottom: 64px;
        }
        .entry-block:last-child {
            margin-bottom: 0;
        }
        .entry-block-reverse .entry-media {
            order: 2;
        }
        .entry-block-reverse .entry-content {
            order: 1;
        }
        .entry-media {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            background: #fff;
            min-height: 220px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .entry-media img {
            width: 100%;
            height: 260px;
            object-fit: cover;
        }
        .entry-content {
            padding: 8px 0;
        }
        .section-tag {
            display: inline-block;
            background: rgba(43, 95, 200, 0.08);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: var(--radius-pill);
            padding: 4px 14px;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }
        .entry-content h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 14px;
            line-height: 1.4;
        }
        .entry-content p {
            color: var(--text-sub);
            font-size: 0.95rem;
            margin-bottom: 24px;
            line-height: 1.75;
        }

        /* 安全校验流程 */
        .safety-steps {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-card {
            background: var(--base);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .step-card:hover {
            border-color: rgba(43, 95, 200, 0.2);
            box-shadow: var(--shadow);
        }
        .step-num {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            background: rgba(43, 95, 200, 0.08);
            border-radius: 50%;
            margin-bottom: 16px;
        }
        .step-card h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text);
        }
        .step-card p {
            font-size: 0.875rem;
            color: var(--text-sub);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-section {
            background: var(--base);
        }
        .faq-section .section-head {
            margin-bottom: 40px;
        }
        .accordion {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .accordion-item {
            background: #fff;
            border: 1px solid var(--border) !important;
            border-radius: 12px !important;
            box-shadow: 0 2px 8px rgba(31, 42, 68, 0.04);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .accordion-item:hover {
            box-shadow: var(--shadow);
        }
        .accordion-header {
            background: transparent;
        }
        .accordion-button {
            background: transparent;
            color: var(--text);
            font-weight: 600;
            font-size: 1rem;
            padding: 20px 24px;
            box-shadow: none;
            border: none;
            align-items: center;
            gap: 12px;
            transition: all 0.25s ease;
        }
        .accordion-button:not(.collapsed) {
            background: rgba(43, 95, 200, 0.03);
            color: var(--primary);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .accordion-button::after {
            content: "";
            background-image: none !important;
            font-family: "bootstrap-icons";
            content: "\F64D";
            font-size: 1.1rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--base);
            color: var(--primary);
            flex-shrink: 0;
            transition: all 0.25s ease;
        }
        .accordion-button:not(.collapsed)::after {
            content: "\F646";
            background: var(--primary);
            color: #fff;
            transform: rotate(0);
        }
        .accordion-body {
            padding: 4px 24px 24px;
            color: var(--text-sub);
            font-size: 0.925rem;
            line-height: 1.75;
            background: #fff;
        }

        /* CTA 区 */
        .cta-section {
            background: #fff;
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            bottom: -100px;
            left: -60px;
            width: 260px;
            height: 260px;
            border: 2px solid var(--primary);
            border-radius: 50%;
            opacity: 0.05;
        }
        .cta-box {
            background: var(--primary);
            border-radius: 24px;
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-box::after {
            content: "";
            position: absolute;
            top: -40px;
            right: -40px;
            width: 180px;
            height: 180px;
            border: 2px solid rgba(255, 255, 255, 0.12);
            border-radius: 50%;
        }
        .cta-box h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }
        .cta-box p {
            color: rgba(255, 255, 255, 0.85);
            max-width: 520px;
            margin: 0 auto 28px;
            font-size: 0.95rem;
        }
        .cta-box .btn-accent {
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
            font-size: 1rem;
            padding: 14px 36px;
        }

        /* 页脚 */
        .site-footer {
            background: #12234A;
            color: rgba(255, 255, 255, 0.8);
            padding: 64px 0 28px;
            font-size: 0.875rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }
        .footer-brand p {
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            font-size: 0.875rem;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 0.8125rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.875rem;
            margin-bottom: 8px;
            transition: color 0.2s ease;
        }
        .footer-col a:hover {
            color: #7FE0C8;
        }
        .footer-col p {
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 8px;
            font-size: 0.875rem;
            line-height: 1.6;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.8125rem;
        }
        .footer-bottom span {
            display: inline-block;
        }

        /* 底部固定转化条 */
        .sticky-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: #fff;
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 20px rgba(31, 42, 68, 0.06);
            padding: 12px 0;
            transform: translateY(100%);
            transition: transform 0.3s ease;
        }
        .sticky-cta.show {
            transform: translateY(0);
        }
        .sticky-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .sticky-cta-text {
            font-size: 0.875rem;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.4;
        }
        .sticky-cta-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .sticky-cta .btn {
            padding: 10px 24px;
            font-size: 0.875rem;
        }
        .sticky-cta-close {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: none;
            background: var(--base);
            color: var(--text-sub);
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.2s ease;
        }
        .sticky-cta-close:hover {
            background: #e9edf2;
            color: var(--text);
        }

        /* 返回顶部 */
        .back-to-top {
            position: fixed;
            right: 24px;
            bottom: 104px;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            z-index: 1040;
            box-shadow: var(--shadow-btn);
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
            transition: all 0.3s ease;
            border: none;
        }
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-to-top:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
        }

        /* 平板端 */
        @media (max-width: 991px) {
            .header-inner {
                flex-wrap: wrap;
                gap: 12px;
                padding: 12px 0;
            }
            .header-logo {
                font-size: 1.1rem;
            }
            .header-tabs {
                order: 3;
                width: 100%;
                max-width: none;
                margin: 0;
                overflow-x: auto;
                padding: 4px;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }
            .header-tabs::-webkit-scrollbar {
                display: none;
            }
            .header-tab {
                padding: 7px 14px;
                font-size: 0.8125rem;
            }
            .header-cta {
                padding: 8px 18px;
                font-size: 0.8125rem;
                margin-left: auto;
            }
            .category-hero {
                padding: 56px 0 48px;
            }
            .entry-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .entry-block-reverse .entry-media {
                order: 1;
            }
            .entry-block-reverse .entry-content {
                order: 2;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .sticky-cta-text {
                display: none;
            }
            .sticky-cta-inner {
                justify-content: center;
            }
        }

        /* 手机端 */
        @media (max-width: 576px) {
            .section {
                padding: 40px 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .section-head h2 {
                font-size: 1.4rem;
            }
            .hero-title {
                font-size: 1.75rem;
                line-height: 1.25;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-image-wrap {
                min-height: 180px;
            }
            .trust-bar-inner {
                gap: 16px;
            }
            .trust-item {
                font-size: 0.75rem;
            }
            .entry-media img {
                height: 200px;
            }
            .entry-content h3 {
                font-size: 1.25rem;
            }
            .entry-content p {
                font-size: 0.875rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .step-card {
                padding: 24px 20px;
            }
            .accordion-button {
                font-size: 0.9rem;
                padding: 16px 18px;
            }
            .accordion-body {
                padding: 4px 18px 18px;
                font-size: 0.875rem;
            }
            .cta-box {
                padding: 40px 24px;
                border-radius: 16px;
            }
            .cta-box h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: center;
                text-align: center;
            }
            .back-to-top {
                right: 16px;
                bottom: 88px;
                width: 38px;
                height: 38px;
                font-size: 1rem;
            }
            .sticky-cta .btn {
                width: 100%;
                max-width: 360px;
                padding: 10px 20px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #2B5FC8;
            --primary-dark: #1D3F8F;
            --accent: #00A884;
            --accent-light: #7FE0C8;
            --secondary: #6C8FCB;
            --base: #F4F7FB;
            --card-bg: #FFFFFF;
            --text-main: #1F2A44;
            --text-sub: #5A6B85;
            --border: #E3EAF2;
            --success: #00A884;
            --warning: #E8972C;
            --radius-card: 16px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 20px rgba(31, 42, 68, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(31, 42, 68, 0.10);
            --space-section: 72px;
            --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background-color: var(--base);
            color: var(--text-main);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

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

        .section-title {
            font-size: 1.75rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.4;
        }

        .section-subtitle {
            font-size: 1rem;
            color: var(--text-sub);
            max-width: 720px;
            margin-bottom: 40px;
            line-height: 1.8;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            padding-top: 20px;
            position: sticky;
            top: 0;
            z-index: 1000;
            background: transparent;
            transition: background 0.3s ease, box-shadow 0.3s ease;
            padding-bottom: 10px;
        }

        .site-header.is-scrolled {
            background: #ffffff;
            box-shadow: 0 4px 16px rgba(31, 42, 68, 0.06);
            padding-top: 10px;
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
        }

        .site-logo .logo-highlight {
            color: var(--primary);
        }

        .header-tabs {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: #ffffff;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 4px;
            box-shadow: 0 2px 8px rgba(31, 42, 68, 0.04);
            flex-wrap: wrap;
        }

        .header-tab {
            display: inline-block;
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-sub);
            border: none;
            background: transparent;
            transition: all 0.2s ease;
            white-space: nowrap;
        }

        .header-tab:hover {
            background: var(--base);
            color: var(--primary);
        }

        .header-tab.active {
            background: var(--primary);
            color: #ffffff;
            box-shadow: 0 2px 8px rgba(43, 95, 200, 0.3);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-accent {
            background: var(--accent);
            color: #ffffff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: 0 4px 12px rgba(0, 168, 132, 0.25);
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
        }

        .btn-accent:hover {
            background: #009777;
            color: #ffffff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(0, 168, 132, 0.3);
        }

        .btn-accent:active {
            transform: scale(0.97);
        }

        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
            border-radius: var(--radius-btn);
            padding: 10px 24px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
        }

        .btn-outline:hover {
            background: rgba(43, 95, 200, 0.06);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
        }

        .btn-outline:active {
            transform: scale(0.97);
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #ffffff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: 0 4px 12px rgba(43, 95, 200, 0.25);
            transition: all 0.2s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            cursor: pointer;
        }

        .btn-primary-custom:hover {
            background: var(--primary-dark);
            color: #ffffff;
            box-shadow: 0 6px 16px rgba(29, 63, 143, 0.3);
            transform: translateY(-1px);
        }

        .btn-primary-custom:active {
            transform: scale(0.97);
        }

        /* ===== Hero ===== */
        .category-hero {
            position: relative;
            padding: 100px 0 72px;
            background: var(--base);
            overflow: hidden;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            border: 60px solid rgba(43, 95, 200, 0.04);
            opacity: 0.8;
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            border: 1px solid var(--border);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 0.85rem;
            color: var(--text-sub);
            box-shadow: 0 2px 8px rgba(31, 42, 68, 0.04);
            margin-bottom: 20px;
        }

        .hero-badge .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
        }

        .category-hero h1 {
            font-size: clamp(2rem, 4vw, 2.75rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            margin-bottom: 20px;
        }

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

        .category-hero .lead {
            font-size: 1.125rem;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 680px;
        }

        .hero-image-wrap {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            padding: 8px;
        }

        .hero-image-wrap img {
            border-radius: 12px;
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        .hero-meta-list {
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
            margin-top: 32px;
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-sub);
        }

        .hero-meta-item .mini-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--accent);
            flex-shrink: 0;
        }

        /* ===== 分类内容 ===== */
        .category-body {
            padding: 72px 0;
        }

        .category-guide {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 36px;
            margin-bottom: 48px;
        }

        .category-guide h2 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .category-guide p {
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .feature-block {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 32px;
            margin-bottom: 24px;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            height: 100%;
        }

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

        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #EDF2FB;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: var(--primary);
        }

        .feature-block h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .feature-block p {
            font-size: 0.9rem;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .update-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            padding: 28px;
            margin-bottom: 24px;
            transition: box-shadow 0.3s ease;
        }

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

        .update-card .tag {
            display: inline-block;
            background: #EDF2FB;
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
        }

        .update-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-main);
        }

        .update-card p {
            font-size: 0.9rem;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .update-card .meta {
            font-size: 0.8rem;
            color: var(--text-sub);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .update-card .meta .date {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ===== 区块 ===== */
        .sub-block {
            padding: 48px 0;
        }

        .sub-block-title {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .sub-block-desc {
            color: var(--text-sub);
            margin-bottom: 32px;
            font-size: 0.95rem;
            max-width: 640px;
        }

        .scene-row {
            display: flex;
            align-items: center;
            gap: 48px;
            margin-bottom: 48px;
            flex-wrap: wrap;
        }

        .scene-row:nth-child(even) {
            flex-direction: row-reverse;
        }

        .scene-media {
            flex: 1;
            min-width: 280px;
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            background: var(--card-bg);
        }

        .scene-media img {
            width: 100%;
            height: 240px;
            object-fit: cover;
        }

        .scene-content {
            flex: 1;
            min-width: 280px;
        }

        .scene-content .scene-label {
            font-size: 0.8rem;
            color: var(--secondary);
            font-weight: 600;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            margin-bottom: 8px;
        }

        .scene-content h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .scene-content p {
            color: var(--text-sub);
            font-size: 0.95rem;
            line-height: 1.75;
            margin-bottom: 20px;
        }

        .btn-sm-custom {
            padding: 8px 18px;
            font-size: 0.875rem;
        }

        /* ===== 数据指标 ===== */
        .metrics-block {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px;
        }

        .metric-item {
            text-align: center;
            padding: 16px 8px;
        }

        .metric-item .number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
        }

        .metric-item .label {
            font-size: 0.875rem;
            color: var(--text-sub);
            margin-top: 8px;
        }

        .testimonial-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 32px;
            position: relative;
        }

        .testimonial-card::before {
            content: "\201C";
            position: absolute;
            top: 16px;
            left: 20px;
            font-size: 4rem;
            color: var(--secondary);
            opacity: 0.2;
            line-height: 1;
            font-family: Georgia, serif;
        }

        .testimonial-card p {
            font-size: 1rem;
            color: var(--text-main);
            line-height: 1.8;
            margin-bottom: 16px;
            padding-left: 20px;
        }

        .testimonial-card .author {
            font-size: 0.9rem;
            color: var(--text-sub);
        }

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

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 0;
            margin-bottom: 16px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(31, 42, 68, 0.03);
        }

        .faq-question {
            padding: 20px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            border: none;
            background: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-family);
        }

        .faq-question .toggle-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--base);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            line-height: 1;
            flex-shrink: 0;
            transition: all 0.25s ease;
        }

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

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

        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-sub);
            font-size: 0.95rem;
            line-height: 1.75;
        }

        /* ===== 底部 CTA ===== */
        .cta-banner {
            background: var(--primary-dark);
            border-radius: var(--radius-card);
            padding: 56px 40px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
            margin-bottom: 72px;
        }

        .cta-banner::before {
            content: "";
            position: absolute;
            top: -40px;
            right: -20px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
        }

        .cta-banner h2 {
            font-size: 1.75rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .cta-banner p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 28px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-banner .btn-accent {
            font-size: 1rem;
            padding: 14px 36px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #12234A;
            padding: 64px 0 32px;
            color: rgba(255, 255, 255, 0.75);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
            display: block;
        }

        .footer-brand p {
            font-size: 0.875rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.875rem;
            margin-bottom: 10px;
            transition: color 0.2s ease;
        }

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

        .footer-col p {
            font-size: 0.875rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 10px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ===== 底部固定转化条 ===== */
        .bottom-conversion-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: #ffffff;
            border-top: 1px solid var(--border);
            box-shadow: 0 -4px 20px rgba(31, 42, 68, 0.06);
            padding: 12px 20px;
            display: none;
            align-items: center;
            justify-content: center;
            gap: 16px;
            z-index: 999;
        }

        .bottom-conversion-bar .conversion-text {
            font-size: 0.875rem;
            color: var(--text-sub);
        }

        .bottom-conversion-bar .btn-accent {
            white-space: nowrap;
            padding: 8px 20px;
            font-size: 0.875rem;
        }

        .close-conversion {
            background: var(--base);
            border: none;
            border-radius: 50%;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            color: var(--text-sub);
            cursor: pointer;
            flex-shrink: 0;
            transition: background 0.2s ease;
        }

        .close-conversion:hover {
            background: var(--border);
        }

        @media (min-width: 768px) {
            .bottom-conversion-bar {
                display: flex;
                left: auto;
                right: 20px;
                bottom: 20px;
                border-radius: 12px;
                border: 1px solid var(--border);
                box-shadow: 0 8px 32px rgba(31, 42, 68, 0.12);
                padding: 12px 20px;
            }
        }

        /* ===== 面包屑 ===== */
        .breadcrumb-line {
            padding: 16px 0;
            font-size: 0.85rem;
            color: var(--text-sub);
        }

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

        .breadcrumb-line span {
            margin: 0 8px;
            color: var(--border);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991px) {
            .nav-wrapper {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }

            .header-tabs {
                width: 100%;
                overflow-x: auto;
                flex-wrap: nowrap;
                justify-content: flex-start;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }

            .header-tabs::-webkit-scrollbar {
                display: none;
            }

            .header-tab {
                white-space: nowrap;
                flex-shrink: 0;
            }

            .header-cta {
                width: 100%;
                justify-content: flex-start;
            }

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

            .category-hero {
                padding: 72px 0 48px;
            }

            .hero-image-wrap {
                margin-top: 32px;
            }

            .scene-row {
                gap: 24px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --space-section: 48px;
            }

            .category-hero h1 {
                font-size: 1.8rem;
            }

            .hero-meta-list {
                gap: 16px;
            }

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

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

            .category-guide {
                padding: 24px;
            }

            .feature-block {
                padding: 24px;
            }

            .update-card {
                padding: 20px;
            }

            .scene-row {
                flex-direction: column;
            }

            .scene-row:nth-child(even) {
                flex-direction: column;
            }

            .scene-media,
            .scene-content {
                width: 100%;
                min-width: 0;
            }

            .metrics-block {
                padding: 24px 16px;
            }

            .metric-item {
                padding: 12px 4px;
            }

            .cta-banner {
                padding: 40px 24px;
            }

            .cta-banner h2 {
                font-size: 1.4rem;
            }

            .bottom-conversion-bar .conversion-text {
                display: none;
            }
        }

        @media (max-width: 575px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .category-hero {
                padding: 56px 0 40px;
            }

            .category-hero h1 {
                font-size: 1.6rem;
            }

            .btn-accent,
            .btn-outline {
                padding: 10px 18px;
                font-size: 0.875rem;
            }

            .header-tab {
                padding: 7px 16px;
                font-size: 0.8rem;
            }

            .site-logo {
                font-size: 1.1rem;
            }
        }

        @media (min-width: 992px) {
            .bottom-conversion-bar {
                display: flex;
            }
        }

        @media (max-width: 991px) {
            .bottom-conversion-bar {
                display: flex;
            }
        }

        .back-to-top {
            display: inline-block;
            margin-top: 8px;
            font-size: 0.875rem;
            color: var(--primary);
            font-weight: 500;
        }

        .back-to-top:hover {
            color: var(--primary-dark);
        }

        .footer-bottom {
            padding-bottom: 80px;
        }

        @media (min-width: 768px) {
            .footer-bottom {
                padding-bottom: 24px;
            }
        }

/* roulang page: article */
:root {
            --primary: #2B5FC8;
            --primary-dark: #1D3F8F;
            --primary-light: #EDF2FB;
            --accent: #00A884;
            --accent-light: #7FE0C8;
            --secondary: #6C8FCB;
            --base: #F4F7FB;
            --card: #FFFFFF;
            --text: #1F2A44;
            --text-sub: #5A6B85;
            --border: #E3EAF2;
            --success: #00A884;
            --warning: #E8972C;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-tag: 999px;
            --shadow-card: 0 4px 20px rgba(31, 42, 68, 0.06);
            --shadow-hover: 0 12px 32px rgba(31, 42, 68, 0.10);
            --section-space: 64px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, sans-serif;
            background-color: var(--base);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        body,
        h1,
        h2,
        h3,
        h4,
        h5,
        h6,
        p,
        ul,
        ol,
        figure {
            margin: 0;
        }

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease;
        }

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

        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(43, 95, 200, 0.35);
            outline-offset: 2px;
        }

        .container {
            max-width: 1200px;
        }

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

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 40px;
        }

        .section-title {
            font-size: 1.75rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
        }

        .section-sub {
            color: var(--text-sub);
            font-size: .875rem;
        }

        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: 10px 24px;
            font-size: .9375rem;
            transition: all .2s ease;
            border: 1px solid transparent;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
        }

        .btn:focus {
            box-shadow: 0 0 0 3px rgba(43, 95, 200, 0.15);
        }

        .btn:active {
            transform: scale(0.97);
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 12px rgba(0, 168, 132, 0.25);
        }

        .btn-accent:hover {
            background: #009974;
            color: #fff;
        }

        .btn-primary-custom {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(43, 95, 200, 0.25);
        }

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

        .btn-outline-custom {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }

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

        .btn-sm {
            padding: 8px 18px;
            font-size: .875rem;
        }

        .btn-lg {
            padding: 14px 34px;
            font-size: 1rem;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(244, 247, 251, 0.85);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid transparent;
            transition: all .3s ease;
        }

        .site-header.scrolled {
            background: #fff;
            border-bottom-color: var(--border);
            box-shadow: 0 4px 16px rgba(31, 42, 68, 0.06);
        }

        .header-inner {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 14px 0;
        }

        .header-logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            white-space: nowrap;
            letter-spacing: .5px;
            flex-shrink: 0;
        }

        .header-logo:hover {
            color: var(--primary-dark);
        }

        .header-tabs {
            display: flex;
            align-items: center;
            gap: 4px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 4px;
            flex: 1;
            justify-content: center;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .header-tabs::-webkit-scrollbar {
            display: none;
        }

        .header-tab {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            color: var(--text-sub);
            font-size: .875rem;
            font-weight: 500;
            white-space: nowrap;
            transition: background .2s ease, color .2s ease;
            flex-shrink: 0;
        }

        .header-tab:hover {
            background: var(--base);
            color: var(--primary);
        }

        .header-tab.active {
            background: var(--primary);
            color: #fff;
        }

        .header-actions {
            flex-shrink: 0;
        }

        .page-banner {
            background: var(--base);
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(108, 143, 203, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .breadcrumb-wrap {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: .875rem;
            color: var(--text-sub);
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }

        .breadcrumb-item {
            color: var(--text-sub);
        }

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

        .breadcrumb-sep {
            color: var(--border);
        }

        .page-title {
            font-size: clamp(1.75rem, 3vw, 2.25rem);
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin: 0 0 16px;
            overflow-wrap: break-word;
            position: relative;
            z-index: 1;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: .875rem;
            color: var(--text-sub);
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .meta-badge {
            display: inline-flex;
            align-items: center;
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: 999px;
            font-size: .75rem;
            font-weight: 500;
            white-space: nowrap;
        }

        .container.article-container {
            max-width: 960px;
        }

        .article-card {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 40px 48px;
            transition: box-shadow .3s ease;
        }

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

        .article-body {
            max-width: 720px;
            margin: 0 auto;
            font-size: 1rem;
            line-height: 1.9;
            color: var(--text);
            overflow-wrap: break-word;
        }

        .article-body h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin: 40px 0 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border);
            line-height: 1.4;
        }

        .article-body h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 32px 0 12px;
            line-height: 1.5;
        }

        .article-body p {
            margin: 0 0 20px;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 20px;
            padding-left: 24px;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
            color: var(--text-sub);
        }

        .article-body img {
            border-radius: 12px;
            margin: 24px auto;
            box-shadow: var(--shadow-card);
            background: var(--base);
            display: block;
        }

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

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

        .article-body strong {
            font-weight: 700;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
        }

        .article-body th,
        .article-body td {
            border: 1px solid var(--border);
            padding: 10px 14px;
            text-align: left;
        }

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

        .article-body code {
            background: var(--base);
            padding: 2px 8px;
            border-radius: 6px;
            font-size: .875em;
            font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
        }

        .article-body pre {
            background: var(--text);
            color: #fff;
            padding: 20px;
            border-radius: 12px;
            overflow-x: auto;
            margin: 24px 0;
        }

        .article-body pre code {
            background: transparent;
            padding: 0;
            color: inherit;
        }

        .article-body hr {
            border: none;
            border-top: 1px solid var(--border);
            margin: 32px 0;
        }

        .article-footer {
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--primary);
            font-weight: 500;
            font-size: .9375rem;
            transition: color .2s ease;
        }

        .back-link:hover {
            color: var(--primary-dark);
        }

        .not-found-box {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 64px 24px;
            text-align: center;
            max-width: 720px;
            margin: 0 auto;
        }

        .not-found-box h1 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .not-found-box p {
            color: var(--text-sub);
            margin-bottom: 24px;
        }

        .related-section {
            position: relative;
        }

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

        .related-card {
            background: var(--card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            text-decoration: none;
            color: var(--text);
            transition: box-shadow .25s ease, transform .25s ease;
            display: block;
        }

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

        .related-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            background: var(--base);
        }

        .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }

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

        .related-body {
            padding: 20px 24px 24px;
        }

        .related-body h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            transition: color .2s ease;
        }

        .related-card:hover h3 {
            color: var(--primary);
        }

        .related-body p {
            font-size: .875rem;
            color: var(--text-sub);
            line-height: 1.6;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-body time {
            font-size: .75rem;
            color: var(--secondary);
        }

        .cta-banner {
            position: relative;
            background-color: var(--primary-dark);
            padding: 72px 0;
            text-align: center;
            color: #fff;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: .12;
            pointer-events: none;
        }

        .cta-banner-inner {
            position: relative;
            z-index: 1;
        }

        .cta-banner h2 {
            font-size: 1.75rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #fff;
        }

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

        .cta-banner .btn-accent {
            box-shadow: 0 6px 18px rgba(0, 168, 132, 0.35);
        }

        .site-footer {
            background: #12234A;
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 32px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 32px;
        }

        .footer-logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: .875rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: .875rem;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.65);
            font-size: .875rem;
            padding: 6px 0;
            transition: color .2s ease;
        }

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

        .footer-col p {
            font-size: .875rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: .75rem;
            color: rgba(255, 255, 255, 0.5);
        }

        .float-bottom-bar {
            position: fixed;
            z-index: 1050;
            display: none;
        }

        .bar-text {
            color: var(--text-sub);
            font-size: .75rem;
            line-height: 1.4;
            max-width: 150px;
        }

        .bar-close {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: none;
            background: var(--base);
            color: var(--text-sub);
            font-size: .75rem;
            line-height: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: background .2s ease, color .2s ease;
            flex-shrink: 0;
            padding: 0;
        }

        .bar-close:hover {
            background: var(--border);
            color: var(--text);
        }

        @media (min-width: 768px) {
            .float-bottom-bar {
                right: 24px;
                bottom: 24px;
                width: auto;
                background: #fff;
                border-radius: 12px;
                box-shadow: 0 8px 32px rgba(31, 42, 68, 0.16);
                padding: 8px;
                display: flex;
                align-items: center;
                gap: 12px;
            }

            .bar-close {
                position: static;
            }
        }

        @media (max-width: 767.98px) {
            .float-bottom-bar {
                left: 0;
                right: 0;
                bottom: 0;
                background: #fff;
                border-top: 1px solid var(--border);
                box-shadow: 0 -8px 24px rgba(31, 42, 68, 0.08);
                padding: 10px 16px;
                display: block;
            }

            .float-bottom-bar .container {
                display: flex;
                justify-content: center;
                position: relative;
                padding: 0;
            }

            .bar-text {
                display: none;
            }

            .bar-close {
                position: absolute;
                right: 0;
                top: -16px;
                background: #fff;
                box-shadow: 0 2px 8px rgba(31, 42, 68, 0.1);
                width: 24px;
                height: 24px;
            }

            .site-footer {
                padding-bottom: 72px;
            }
        }

        @media (max-width: 991px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }

            .related-grid {
                gap: 20px;
            }

            .header-tabs {
                justify-content: flex-start;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-space: 40px;
            }

            .header-inner {
                flex-wrap: wrap;
                gap: 12px;
            }

            .header-logo {
                margin-right: auto;
            }

            .header-actions {
                margin-left: auto;
            }

            .header-tabs {
                order: 3;
                width: 100%;
                flex: none;
            }

            .header-tab {
                padding: 7px 14px;
            }

            .page-banner {
                padding: 32px 0 24px;
            }

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

            .article-card {
                padding: 24px 20px;
            }

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

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

            .cta-banner {
                padding: 48px 0;
            }

            .cta-banner h2 {
                font-size: 1.4rem;
            }
        }

        @media (max-width: 575px) {
            .header-actions .btn {
                padding: 7px 14px;
                font-size: .8125rem;
            }

            .article-meta {
                gap: 12px;
            }

            .related-grid {
                display: flex;
                overflow-x: auto;
                scroll-snap-type: x mandatory;
                gap: 16px;
                padding-bottom: 16px;
                margin-right: -16px;
                margin-left: -16px;
                padding-left: 16px;
                padding-right: 16px;
                scrollbar-width: none;
            }

            .related-grid::-webkit-scrollbar {
                display: none;
            }

            .related-card {
                min-width: 260px;
                scroll-snap-align: start;
                flex-shrink: 0;
            }

            .cta-banner .btn {
                width: 100%;
                max-width: 300px;
            }

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

/* roulang page: category3 */
:root {
    --primary: #2B5FC8;
    --primary-dark: #1D3F8F;
    --accent: #00A884;
    --secondary: #6C8FCB;
    --bg-base: #F4F7FB;
    --card-bg: #FFFFFF;
    --text-main: #1F2A44;
    --text-sub: #5A6B85;
    --border: #E3EAF2;
    --radius-lg: 16px;
    --radius-md: 8px;
    --radius-pill: 999px;
    --shadow-card: 0 4px 20px rgba(31,42,68,.06);
    --shadow-hover: 0 12px 32px rgba(31,42,68,.10);
    --shadow-btn-p: 0 4px 12px rgba(43,95,200,.25);
    --shadow-btn-a: 0 4px 12px rgba(0,168,132,.25);
    --transition: .2s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;background:var(--bg-base);color:var(--text-main);line-height:1.75;font-size:1rem;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--primary-dark)}
img{max-width:100%;height:auto;display:block}
.container{max-width:1200px;padding-left:24px;padding-right:24px}
.section{padding:64px 0}
.section+.section{padding-top:0}
.section-head{text-align:center;max-width:720px;margin:0 auto 40px}
.section-label{display:inline-block;background:rgba(43,95,200,.08);color:var(--primary);font-size:.8125rem;font-weight:600;padding:4px 14px;border-radius:var(--radius-pill);letter-spacing:.3px;margin-bottom:12px}
.section-head h2{font-size:1.75rem;font-weight:600;line-height:1.4;color:var(--text-main);margin-bottom:10px}
.section-head p{color:var(--text-sub);font-size:.9375rem}
.text-highlight{color:var(--primary)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-md);font-weight:600;font-size:1rem;padding:12px 28px;border:2px solid transparent;transition:all var(--transition);cursor:pointer;line-height:1.4}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:scale(.97)}
.btn:focus-visible{outline:3px solid rgba(43,95,200,.25);outline-offset:2px}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:var(--shadow-btn-p)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:var(--shadow-btn-a)}
.btn-accent:hover{background:#009976;border-color:#009976;color:#fff}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-lg{padding:14px 36px;font-size:1.0625rem}
.btn-sm{padding:8px 20px;font-size:.875rem}

.site-header{position:sticky;top:0;z-index:1000;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 2px 12px rgba(31,42,68,.04);transition:box-shadow var(--transition)}
.site-header.scrolled{box-shadow:0 4px 16px rgba(31,42,68,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.header-logo{font-size:1.35rem;font-weight:700;color:var(--text-main);white-space:nowrap;display:flex;align-items:center;gap:8px}
.header-logo::before{content:"";display:inline-block;width:28px;height:28px;border-radius:8px;background:var(--primary);flex-shrink:0}
.header-tabs{display:flex;align-items:center;gap:4px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-pill);padding:4px}
.header-tab{padding:6px 18px;border-radius:var(--radius-pill);font-size:.875rem;font-weight:500;color:var(--text-sub);transition:all var(--transition);white-space:nowrap}
.header-tab:hover{background:var(--bg-base);color:var(--primary)}
.header-tab.active{background:var(--primary);color:#fff}
.header-right{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;background:none;border:0;width:40px;height:40px;border-radius:8px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text-main);border-radius:2px;transition:all .3s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(3.5px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-3.5px) rotate(-45deg)}

.category-hero{background:linear-gradient(180deg,#EDF2FB 0%,var(--bg-base) 100%);position:relative;padding:72px 0 56px;overflow:hidden}
.category-hero::before{content:"";position:absolute;top:0;right:0;width:320px;height:320px;border-radius:50%;border:40px solid rgba(43,95,200,.05);transform:translate(30%,-30%)}
.category-hero::after{content:"";position:absolute;bottom:-60px;left:-40px;width:260px;height:180px;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.06;border-radius:24px;transform:rotate(-6deg)}
.category-hero .container{position:relative;z-index:2}
.category-hero-badge{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-pill);padding:6px 18px;font-size:.8125rem;font-weight:600;color:var(--text-sub);box-shadow:0 2px 8px rgba(31,42,68,.04);margin-bottom:20px}
.category-hero-badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.category-hero h1{font-size:clamp(2rem,4vw,2.75rem);font-weight:700;line-height:1.3;color:var(--text-main);margin-bottom:16px}
.category-hero-desc{font-size:1.125rem;line-height:1.8;color:var(--text-sub);max-width:680px;margin-bottom:28px}
.category-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.category-hero-meta{display:flex;flex-wrap:wrap;gap:20px;font-size:.875rem;color:var(--text-sub)}
.category-hero-meta span{display:inline-flex;align-items:center;gap:6px}
.category-hero-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}

.value-section{background:var(--bg-base)}
.value-layout{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;align-items:stretch}
.value-card-lg{background:var(--primary);border-radius:var(--radius-lg);padding:32px;color:#fff;box-shadow:var(--shadow-card);display:flex;flex-direction:column;gap:14px;transition:transform var(--transition),box-shadow var(--transition)}
.value-card-lg:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.value-card-lg .value-icon{width:52px;height:52px;border-radius:14px;background:rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center}
.value-card-lg h3{font-size:1.3125rem;font-weight:600}
.value-card-lg p{color:rgba(255,255,255,.85);font-size:.9375rem}
.value-link{color:#fff;font-weight:600;font-size:.875rem;border-bottom:1px solid rgba(255,255,255,.5);align-self:flex-start;padding-bottom:2px}
.value-link:hover{color:#fff;border-color:#fff}
.value-card-stack{display:flex;flex-direction:column;gap:24px}
.value-card-sm{background:var(--card-bg);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-card);display:flex;gap:16px;align-items:flex-start;transition:transform var(--transition),box-shadow var(--transition);flex:1}
.value-card-sm:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.value-icon-sm{width:44px;height:44px;border-radius:12px;background:#EDF2FB;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.value-sm-content h3{font-size:1.0625rem;font-weight:600;margin-bottom:4px}
.value-sm-content p{font-size:.875rem;color:var(--text-sub);line-height:1.6}

.steps-section{background:#fff}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step-item{background:var(--bg-base);border-radius:var(--radius-lg);padding:28px 24px;position:relative;border:1px solid var(--border);transition:all var(--transition)}
.step-item:hover{box-shadow:var(--shadow-card);transform:translateY(-2px);border-color:var(--secondary)}
.step-num{position:absolute;top:24px;right:24px;font-size:1.75rem;font-weight:700;color:rgba(43,95,200,.12)}
.step-icon{width:46px;height:46px;border-radius:12px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.step-item h3{font-size:1.125rem;font-weight:600;margin-bottom:6px}
.step-item p{font-size:.875rem;color:var(--text-sub);line-height:1.6}

.feature-section{background:var(--bg-base)}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.feature-image{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);background:#EDF2FB;aspect-ratio:4/3;position:relative}
.feature-image img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.feature-image:hover img{transform:scale(1.03)}
.feature-content h2{font-size:1.625rem;font-weight:600;line-height:1.4;margin-bottom:14px}
.feature-content p{color:var(--text-sub);font-size:.9375rem;margin-bottom:18px}
.feature-list{list-style:none;padding:0;margin:0 0 24px}
.feature-list li{padding-left:24px;position:relative;color:var(--text-main);font-size:.9375rem;line-height:1.7;margin-bottom:10px}
.feature-list li::before{content:"";position:absolute;left:0;top:10px;width:10px;height:10px;border-radius:50%;background:var(--accent)}

.faq-section{background:#fff}
.container-narrow{max-width:860px}
.accordion{--bs-accordion-border-color:var(--border);--bs-accordion-border-radius:var(--radius-lg);--bs-accordion-inner-border-radius:var(--radius-lg);border:none}
.accordion-item{border:none;border-radius:var(--radius-lg);margin-bottom:14px;box-shadow:var(--shadow-card);overflow:hidden;background:var(--card-bg)}
.accordion-item:last-child{margin-bottom:0}
.accordion-header{border-radius:var(--radius-lg)}
.accordion-button{background:#fff;font-size:1rem;font-weight:600;color:var(--text-main);padding:18px 20px;box-shadow:none;border-radius:var(--radius-lg);font-family:inherit;line-height:1.5}
.accordion-button:not(.collapsed){background:#F7FAFF;color:var(--primary);box-shadow:none}
.accordion-button:focus{box-shadow:none;border-color:transparent}
.accordion-button::after{background:none;content:'+';font-size:1.5rem;font-weight:400;color:var(--primary);width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#EDF2FB;transition:transform .25s ease;transform:none;line-height:1}
.accordion-button:not(.collapsed)::after{content:'−';transform:none;background:var(--primary);color:#fff}
.accordion-body{background:#F7FAFF;padding:20px;color:var(--text-sub);font-size:.9375rem;line-height:1.8;border-top:1px solid var(--border)}

.cta-section{background:var(--bg-base)}
.cta-box{background:var(--primary-dark);border-radius:24px;padding:56px 40px;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-box::before{content:"";position:absolute;top:-40px;right:-40px;width:200px;height:200px;border-radius:50%;border:30px solid rgba(255,255,255,.05)}
.cta-box::after{content:"";position:absolute;bottom:-60px;left:-20px;width:180px;height:180px;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;opacity:.06;border-radius:20px}
.cta-box h2{font-size:1.875rem;font-weight:600;margin-bottom:12px;position:relative;z-index:1}
.cta-box p{color:rgba(255,255,255,.8);font-size:1rem;margin-bottom:28px;position:relative;z-index:1}
.cta-box .btn{position:relative;z-index:1}

.site-footer{background:#12234A;color:rgba(255,255,255,.75);padding:56px 0 32px;margin-bottom:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:40px}
.footer-logo{font-size:1.3125rem;font-weight:700;color:#fff;margin-bottom:12px}
.footer-brand p{font-size:.875rem;line-height:1.7;color:rgba(255,255,255,.6)}
.footer-col h4{color:#fff;font-size:.9375rem;font-weight:600;margin-bottom:16px}
.footer-col a{display:block;color:rgba(255,255,255,.6);font-size:.875rem;margin-bottom:10px;transition:color var(--transition)}
.footer-col a:hover{color:#7FE0C8}
.footer-col p{font-size:.875rem;color:rgba(255,255,255,.6);margin-bottom:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.8125rem;color:rgba(255,255,255,.45)}
.footer-bottom a{color:rgba(255,255,255,.55);font-size:.8125rem}
.footer-bottom a:hover{color:#7FE0C8}

.sticky-cta{position:fixed;bottom:20px;right:20px;z-index:999;display:block}
.sticky-cta-inner{background:#fff;border-radius:var(--radius-pill);box-shadow:0 8px 30px rgba(31,42,68,.15);display:flex;align-items:center;gap:16px;padding:10px 10px 10px 20px;border:1px solid var(--border)}
.sticky-cta-text{font-size:.875rem;color:var(--text-main);font-weight:500;margin:0;white-space:nowrap}
.sticky-cta-close{background:var(--bg-base);border:0;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--text-sub);font-size:1.125rem;cursor:pointer;transition:all var(--transition)}
.sticky-cta-close:hover{background:var(--border);color:var(--primary)}
.sticky-cta.hidden{display:none}

@media (max-width:991px){
    .header-tabs{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;border-top:1px solid var(--border);flex-direction:column;align-items:stretch;padding:12px 24px;gap:6px;border-radius:0;box-shadow:0 12px 24px rgba(31,42,68,.08)}
    .header-tabs.open{display:flex}
    .header-tab{padding:12px 16px;text-align:center;border-radius:var(--radius-md)}
    .nav-toggle{display:flex}
    .value-layout{grid-template-columns:1fr}
    .features-grid{grid-template-columns:1fr}
    .steps-grid{grid-template-columns:1fr;gap:16px}
    .feature-grid{grid-template-columns:1fr;gap:24px}
    .feature-reverse .feature-grid{grid-template-columns:1fr}
    .feature-reverse .feature-content{order:2}
    .feature-reverse .feature-image{order:1}
}
@media (max-width:767px){
    .section{padding:48px 0}
    .section-head{margin-bottom:32px}
    .category-hero{padding:56px 0 40px}
    .category-hero-desc{font-size:1rem}
    .category-hero-actions{flex-direction:column;align-items:flex-start}
    .header-cta{display:none}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .sticky-cta{left:0;right:0;bottom:0;border-radius:0;padding:0}
    .sticky-cta-inner{border-radius:0;border-left:0;border-right:0;border-bottom:0;padding:10px 16px;justify-content:flex-end}
    .sticky-cta-text{display:none}
}
@media (max-width:575px){
    .container{padding-left:16px;padding-right:16px}
    .footer-grid{grid-template-columns:1fr}
    .footer-col h4{margin-bottom:12px}
    .step-item{padding:24px 20px}
    .cta-box{padding:40px 20px}
    .cta-box h2{font-size:1.5rem}
    .value-card-lg{padding:24px}
}