/* roulang page: index */
:root {
            --color-primary: #0A1A2B;
            --color-secondary: #112E4A;
            --color-accent: #F5B82E;
            --color-accent-blue: #3D7FFF;
            --color-bg-dark: #0A1A2B;
            --color-bg-dark-2: #0E2334;
            --color-bg-light: #F8FAFC;
            --color-text-dark: #12263A;
            --color-text-light: #E8F0F8;
            --color-text-muted-dark: rgba(232, 240, 248, 0.65);
            --color-text-muted-light: #52616F;
            --color-border: #E5E9EF;
            --radius-card: 12px;
            --radius-btn: 50px;
            --radius-search: 20px;
            --radius-tag: 4px;
            --shadow-card: 0 8px 30px rgba(10, 26, 43, 0.08);
            --shadow-large: 0 20px 60px rgba(0, 0, 0, 0.45);
            --shadow-btn: 0 0 24px rgba(61, 127, 255, 0.45);
            --container-width: 1200px;
            --section-padding: 72px;
            --transition: 0.2s ease;
            --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text-dark);
            background: #fff;
            -webkit-font-smoothing: antialiased;
        }
        body.foundation-fixed {
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--color-secondary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }
        .container {
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section-padding) 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            transition: all var(--transition);
            border: none;
            text-decoration: none;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-accent-blue);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            background: #5c92ff;
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 0 30px rgba(61, 127, 255, 0.6);
        }
        .btn-primary:active {
            transform: translateY(2px);
            box-shadow: 0 0 12px rgba(61, 127, 255, 0.3);
        }
        .btn-secondary {
            background: transparent;
            color: var(--color-text-light);
            border: 1px solid rgba(255, 255, 255, 0.3);
        }
        .btn-secondary:hover {
            background: rgba(61, 127, 255, 0.08);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }
        .btn-light {
            background: #fff;
            color: var(--color-secondary);
            border: 1px solid var(--color-border);
        }
        .btn-light:hover {
            background: var(--color-bg-light);
            color: var(--color-accent-blue);
            border-color: var(--color-accent-blue);
        }
        .btn-block {
            width: 100%;
        }
        .btn-sm {
            height: 40px;
            padding: 0 22px;
            font-size: 14px;
        }
        .tag {
            display: inline-block;
            padding: 2px 10px;
            border-radius: var(--radius-tag);
            font-size: 12px;
            font-weight: 500;
            background: rgba(61, 127, 255, 0.1);
            color: var(--color-accent-blue);
            line-height: 1.6;
        }
        .tag-gold {
            background: rgba(245, 184, 46, 0.15);
            color: #B8860B;
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 12px;
            color: var(--color-text-dark);
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--color-text-muted-light);
            max-width: 620px;
            margin-bottom: 40px;
        }
        .text-center {
            text-align: center;
        }
        .text-light {
            color: var(--color-text-light);
        }
        .section-dark {
            background: var(--color-bg-dark);
        }
        .section-dark .section-title {
            color: var(--color-text-light);
        }
        .section-dark .section-subtitle {
            color: var(--color-text-muted-dark);
        }

        /* ===== 导航 ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 2px 8px rgba(10, 26, 43, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 68px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 32px;
            height: 32px;
            flex-shrink: 0;
        }
        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }
        .nav-link {
            font-size: 15px;
            color: #33475b;
            padding: 8px 16px;
            border-radius: 6px;
            font-weight: 500;
            position: relative;
            transition: all var(--transition);
            text-decoration: none;
        }
        .nav-link:hover {
            color: var(--color-accent-blue);
            background: rgba(61, 127, 255, 0.06);
        }
        .nav-link.active {
            color: var(--color-accent-blue);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .nav-tools {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .search-form {
            display: flex;
            align-items: center;
            background: var(--color-bg-light);
            border-radius: var(--radius-search);
            border: 1px solid var(--color-border);
            overflow: hidden;
            height: 38px;
            transition: all var(--transition);
        }
        .search-form:focus-within {
            border-color: var(--color-accent-blue);
            box-shadow: 0 0 0 3px rgba(61, 127, 255, 0.25);
        }
        .search-form input {
            border: none;
            background: transparent;
            padding: 0 14px;
            font-size: 14px;
            outline: none;
            width: 150px;
            color: var(--color-text-dark);
        }
        .search-form button {
            padding: 0 14px;
            color: #8a97a5;
            font-size: 14px;
            transition: color var(--transition);
        }
        .search-form button:hover {
            color: var(--color-accent-blue);
        }
        .nav-burger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
            background: transparent;
        }
        .nav-burger span {
            width: 22px;
            height: 2px;
            background: var(--color-text-dark);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .mobile-nav {
            display: none;
            background: #fff;
            border-top: 1px solid var(--color-border);
            padding: 16px 24px 24px;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav-link {
            font-size: 16px;
            color: var(--color-text-dark);
            padding: 12px 8px;
            border-radius: 6px;
            transition: background var(--transition);
        }
        .mobile-nav-link:hover {
            background: var(--color-bg-light);
            color: var(--color-accent-blue);
        }
        .mobile-nav .btn {
            margin-top: 12px;
        }

        /* ===== Hero ===== */
        .hero {
            background: linear-gradient(135deg, rgba(10, 26, 43, 0.94) 0%, rgba(11, 39, 64, 0.9) 55%, rgba(14, 35, 52, 0.94) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            min-height: 80vh;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -8%;
            width: 55%;
            height: 85%;
            background: radial-gradient(ellipse, rgba(245, 184, 46, 0.18) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-inner {
            display: flex;
            align-items: center;
            gap: 64px;
            padding: 80px 0;
            position: relative;
            z-index: 2;
        }
        .hero-content {
            flex: 1;
            max-width: 560px;
        }
        .hero-title {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--color-text-light);
            margin-bottom: 20px;
        }
        .hero-title .highlight {
            color: var(--color-accent);
        }
        .hero-subtitle {
            font-size: 17px;
            line-height: 1.7;
            color: var(--color-text-muted-dark);
            margin-bottom: 32px;
            max-width: 440px;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 44px;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }
        .stat-item {
            text-align: left;
        }
        .stat-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--color-text-light);
            line-height: 1.2;
            display: block;
        }
        .stat-num span {
            font-size: 16px;
            font-weight: 400;
            color: var(--color-text-muted-dark);
            margin-left: 2px;
        }
        .stat-label {
            font-size: 13px;
            color: var(--color-text-muted-dark);
            margin-top: 4px;
            display: block;
        }
        .hero-visual {
            flex: 1;
            max-width: 460px;
            position: relative;
        }
        .glass-card {
            background: rgba(255, 255, 255, 0.07);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: 16px;
            box-shadow: var(--shadow-large), inset 0 1px 0 rgba(255, 255, 255, 0.06);
            padding: 32px;
        }
        .layer-stack {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .layer-row {
            display: flex;
            align-items: center;
            gap: 16px;
            border-radius: 10px;
            padding: 14px 18px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }
        .layer-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(61, 127, 255, 0.2);
            color: var(--color-accent-blue);
            font-size: 18px;
            flex-shrink: 0;
        }
        .layer-icon.gold {
            background: rgba(245, 184, 46, 0.2);
            color: var(--color-accent);
        }
        .layer-icon.green {
            background: rgba(61, 180, 120, 0.2);
            color: #3DB478;
        }
        .layer-info {
            flex: 1;
        }
        .layer-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-light);
            margin-bottom: 2px;
        }
        .layer-desc {
            font-size: 12px;
            color: var(--color-text-muted-dark);
            line-height: 1.5;
        }
        .glass-card .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            background: rgba(245, 184, 46, 0.2);
            color: var(--color-accent);
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        /* ===== 最新动态 ===== */
        .news-section {
            background: var(--color-bg-light);
            padding: 72px 0;
        }
        .news-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            height: 100%;
            transition: all var(--transition);
            text-decoration: none;
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 40px rgba(10, 26, 43, 0.12);
            border-color: var(--color-accent);
        }
        .news-card-thumb {
            height: 160px;
            overflow: hidden;
            background: linear-gradient(135deg, #e8edf2, #d0d8e0);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .news-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card:hover .news-card-thumb img {
            transform: scale(1.04);
        }
        .news-card-body {
            padding: 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-card-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--color-text-dark);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 48px;
        }
        .news-card-desc {
            font-size: 14px;
            color: var(--color-text-muted-light);
            line-height: 1.6;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            border-top: 1px solid #f0f2f5;
            padding-top: 14px;
            margin-top: auto;
        }
        .news-card-meta time {
            font-size: 13px;
            color: var(--color-text-muted-light);
            margin-left: auto;
        }
        .news-card .read-more {
            font-size: 13px;
            color: var(--color-accent-blue);
            font-weight: 500;
        }
        .news-card:hover .read-more {
            color: var(--color-accent);
        }
        .empty-state {
            background: #fff;
            border: 1px dashed #cbd5e0;
            border-radius: var(--radius-card);
            padding: 60px 24px;
            text-align: center;
            color: var(--color-text-muted-light);
            font-size: 15px;
            min-height: 240px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 12px;
        }
        .empty-state i {
            font-size: 40px;
            color: #cbd5e0;
        }

        /* ===== 卖点三连 ===== */
        .features-section {
            background: linear-gradient(180deg, var(--color-bg-dark) 0%, var(--color-bg-dark-2) 100%);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }
        .features-section::before {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 50%;
            height: 60%;
            background: radial-gradient(ellipse, rgba(245, 184, 46, 0.06) 0%, transparent 70%);
        }
        .features-grid {
            display: flex;
            align-items: center;
            gap: 24px;
            max-width: 1100px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }
        .feature-card {
            border-radius: 16px;
            padding: 32px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(8px);
            transition: all var(--transition);
            display: flex;
            gap: 20px;
            align-items: flex-start;
            text-align: left;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            border-color: rgba(245, 184, 46, 0.3);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
        }
        .feature-card.main {
            flex: 1.6;
            padding: 36px;
            background: linear-gradient(135deg, rgba(245, 184, 46, 0.10) 0%, rgba(255, 255, 255, 0.06) 60%);
            border-color: rgba(245, 184, 46, 0.25);
        }
        .feature-card.side {
            flex: 1;
            flex-direction: column;
        }
        .feature-icon {
            width: 46px;
            height: 46px;
            border-radius: 12px;
            background: rgba(245, 184, 46, 0.15);
            border: 1px solid rgba(245, 184, 46, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 20px;
            flex-shrink: 0;
        }
        .feature-icon.blue {
            background: rgba(61, 127, 255, 0.15);
            border-color: rgba(61, 127, 255, 0.3);
            color: var(--color-accent-blue);
        }
        .feature-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .feature-desc {
            font-size: 14px;
            color: var(--color-text-muted-dark);
            line-height: 1.6;
        }

        /* ===== 场景演示 ===== */
        .scenario-section {
            background: var(--color-bg-light);
            padding: 80px 0;
        }
        .scenario-row {
            display: flex;
            align-items: center;
            gap: 64px;
            margin-bottom: 80px;
        }
        .scenario-row:last-child {
            margin-bottom: 0;
        }
        .scenario-row.reverse {
            flex-direction: row-reverse;
        }
        .scenario-image {
            flex: 1;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            background: #fff;
        }
        .scenario-image img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }
        .scenario-content {
            flex: 1;
        }
        .scenario-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-accent-blue);
            background: rgba(61, 127, 255, 0.1);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 14px;
        }
        .scenario-title {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text-dark);
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .scenario-list {
            list-style: none;
            margin: 0 0 24px;
        }
        .scenario-list li {
            font-size: 15px;
            color: #3d4f63;
            padding: 8px 0 8px 24px;
            position: relative;
            line-height: 1.6;
        }
        .scenario-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 18px;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--color-accent);
        }

        /* ===== 社会认同 ===== */
        .trust-section {
            background: #fff;
            padding: 80px 0;
        }
        .logo-wall {
            display: flex;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
            margin-bottom: 56px;
        }
        .logo-badge {
            width: 130px;
            height: 60px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px solid #e8edf2;
            border-radius: 10px;
            background: #fafbfc;
            color: #b0bac4;
            transition: all var(--transition);
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 1px;
        }
        .logo-badge:hover {
            color: var(--color-accent);
            border-color: var(--color-accent);
            background: rgba(245, 184, 46, 0.05);
        }
        .testimonial-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            max-width: 960px;
            margin: 0 auto;
        }
        .testimonial-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 28px;
            position: relative;
        }
        .testimonial-card::before {
            content: '\201C';
            font-size: 64px;
            color: rgba(245, 184, 46, 0.3);
            font-family: Georgia, serif;
            line-height: 1;
            position: absolute;
            top: 16px;
            left: 20px;
        }
        .testimonial-text {
            font-size: 15px;
            color: #3d4f63;
            line-height: 1.7;
            margin-bottom: 16px;
            padding-top: 20px;
        }
        .testimonial-author {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-text-dark);
            text-align: right;
            border-top: 1px solid #f0f2f5;
            padding-top: 14px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: linear-gradient(180deg, var(--color-bg-dark-2) 0%, var(--color-bg-dark) 100%);
            padding: 80px 0;
        }
        .faq-container {
            max-width: 820px;
            margin: 0 auto;
        }
        .accordion {
            background: transparent;
            list-style: none;
            margin: 0;
        }
        .accordion-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .accordion-item:hover {
            border-color: rgba(245, 184, 46, 0.3);
        }
        .accordion-title {
            font-size: 16px !important;
            font-weight: 600 !important;
            color: var(--color-text-light) !important;
            padding: 18px 24px !important;
            line-height: 1.4 !important;
            position: relative !important;
            display: flex !important;
            justify-content: space-between;
            align-items: center;
            min-height: 54px;
        }
        .accordion-title::before {
            content: '\f078';
            font-family: 'Font Awesome 6 Free' !important;
            font-weight: 900;
            font-size: 14px;
            color: var(--color-accent);
            transition: transform var(--transition);
        }
        .accordion-item.is-active .accordion-title::before {
            transform: rotate(180deg);
        }
        .accordion-content {
            background: transparent !important;
            color: var(--color-text-muted-dark) !important;
            padding: 0 24px 20px !important;
            font-size: 15px;
            line-height: 1.7;
        }
        .accordion-content p {
            color: var(--color-text-muted-dark);
            margin: 0;
        }

        /* ===== CTA横幅 ===== */
        .cta-banner {
            background: linear-gradient(135deg, var(--color-bg-dark) 0%, #0b2740 100%);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60%;
            height: 100%;
            background: radial-gradient(ellipse, rgba(245, 184, 46, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-banner h3 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-text-light);
            margin-bottom: 14px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            font-size: 16px;
            color: var(--color-text-muted-dark);
            margin-bottom: 32px;
            position: relative;
            z-index: 1;
        }
        .cta-banner .btn {
            position: relative;
            z-index: 1;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #081420;
            padding-top: 56px;
            position: relative;
            padding-bottom: 32px;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--color-accent) 0%, transparent 100%);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo svg {
            width: 28px;
            height: 28px;
        }
        .footer-logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-light);
        }
        .footer-desc {
            font-size: 14px;
            color: rgba(232, 240, 248, 0.5);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--color-text-light);
            margin-bottom: 18px;
            text-transform: none;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: rgba(232, 240, 248, 0.55);
            transition: all var(--transition);
            text-decoration: none;
        }
        .footer-links a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }
        .footer-contact {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(232, 240, 248, 0.55);
            margin-bottom: 12px;
            line-height: 1.5;
        }
        .footer-contact i {
            color: var(--color-accent);
            font-size: 14px;
            width: 18px;
            text-align: center;
            flex-shrink: 0;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 28px;
            font-size: 13px;
            color: rgba(232, 240, 248, 0.4);
        }
        .footer-bottom a {
            color: rgba(232, 240, 248, 0.4);
            text-decoration: none;
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ===== 底部固定转化条 ===== */
        .sticky-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: rgba(10, 26, 43, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
            z-index: 90;
            padding: 0 24px;
        }
        .sticky-cta-text {
            font-size: 15px;
            color: var(--color-text-light);
        }
        .sticky-cta-btn {
            height: 36px;
            padding: 0 20px;
            font-size: 14px;
        }
        body {
            padding-bottom: 56px;
        }
        .mobile-float-btn {
            display: none;
            position: fixed;
            bottom: 24px;
            right: 24px;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-accent-blue);
            box-shadow: 0 0 24px rgba(61, 127, 255, 0.5);
            z-index: 90;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 22px;
            transition: all var(--transition);
        }
        .mobile-float-btn:hover {
            transform: scale(1.08);
            box-shadow: 0 0 30px rgba(61, 127, 255, 0.7);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            :root {
                --section-padding: 56px;
            }
            .main-nav {
                display: none;
            }
            .nav-burger {
                display: flex;
            }
            .search-form input {
                width: 120px;
            }
            .hero-title {
                font-size: 34px;
            }
            .features-grid {
                flex-wrap: wrap;
            }
            .feature-card.main {
                flex: 1 1 100%;
            }
            .feature-card.side {
                flex: 1 1 calc(50% - 24px);
            }
        }
        @media (max-width: 768px) {
            .hero {
                min-height: 70vh;
            }
            .hero-inner {
                flex-direction: column;
                gap: 40px;
                padding: 48px 0;
            }
            .hero-content {
                max-width: 100%;
            }
            .hero-visual {
                max-width: 100%;
            }
            .hero-stats {
                gap: 24px;
            }
            .scenario-row {
                flex-direction: column !important;
                gap: 32px;
                margin-bottom: 56px;
            }
            .scenario-image {
                width: 100%;
            }
            .testimonial-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .logo-wall {
                gap: 16px;
            }
            .logo-badge {
                width: 100px;
                height: 50px;
                font-size: 12px;
            }
        }
        @media (max-width: 640px) {
            :root {
                --section-padding: 40px;
            }
            .header-inner {
                height: 60px;
                gap: 12px;
            }
            .logo-text {
                font-size: 16px;
            }
            .search-form {
                display: none;
            }
            .nav-tools .btn {
                display: none;
            }
            .nav-burger {
                display: flex;
            }
            .hero {
                min-height: 60vh;
                background-size: 200% auto;
                background-position: 40% 20%;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-buttons {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-buttons .btn {
                width: 100%;
            }
            .hero-stats {
                gap: 20px;
                justify-content: space-between;
            }
            .stat-num {
                font-size: 22px;
            }
            .section-title {
                font-size: 24px;
            }
            .feature-card {
                flex-direction: column;
                gap: 12px;
            }
            .feature-card.main {
                padding: 24px;
            }
            .feature-card.side {
                flex: 1 1 100%;
            }
            .scenario-title {
                font-size: 22px;
            }
            .testimonial-card {
                padding: 20px;
            }
            .cta-banner h3 {
                font-size: 22px;
            }
            .sticky-cta-bar {
                display: none;
            }
            .mobile-float-btn {
                display: flex;
            }
            body {
                padding-bottom: 0;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #0A1A2B;
            --color-secondary: #112E4A;
            --color-accent: #F5B82E;
            --color-accent-blue: #3D7FFF;
            --color-bg-light: #F8FAFC;
            --color-white: #ffffff;
            --color-text-dark: #12263A;
            --color-text-light-secondary: #52616F;
            --color-text-bright: #E8F0F8;
            --color-text-dim: rgba(232, 240, 248, 0.65);
            --border-light: #E5E9EF;
            --radius-card: 12px;
            --radius-btn: 50px;
            --shadow-card: 0 8px 30px rgba(10, 26, 43, 0.08);
            --shadow-card-hover: 0 16px 40px rgba(10, 26, 43, 0.14);
            --shadow-glow: 0 0 24px rgba(61, 127, 255, 0.45);
            --transition: 0.2s ease;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --container: 1200px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-text-dark);
            background: var(--color-white);
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--color-accent);
        }
        a:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 2px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }

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

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-btn);
            height: 44px;
            padding: 0 28px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            border: none;
            font-family: var(--font-family);
            text-align: center;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--color-accent-blue);
            color: #fff;
            box-shadow: var(--shadow-glow);
        }
        .btn-primary:hover {
            background: #4d8aff;
            color: #fff;
            box-shadow: 0 0 30px rgba(61, 127, 255, 0.6);
        }
        .btn-primary:active {
            transform: translateY(2px);
            box-shadow: 0 0 14px rgba(61, 127, 255, 0.35);
        }
        .btn-lg {
            height: 52px;
            padding: 0 40px;
            font-size: 16px;
        }
        .btn-sm {
            height: 38px;
            padding: 0 20px;
            font-size: 14px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 8px rgba(10, 26, 43, 0.04);
            position: sticky;
            top: 0;
            z-index: 100;
            height: 72px;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--color-text-dark);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--color-text-dark);
        }
        .logo svg {
            flex-shrink: 0;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            margin: 0 auto;
        }
        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-text-dark);
            padding: 8px 0;
            position: relative;
            transition: color 0.2s ease;
        }
        .nav-link:hover {
            color: var(--color-accent);
        }
        .nav-link.active {
            color: var(--color-accent);
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-shrink: 0;
        }
        .search-box {
            position: relative;
        }
        .search-box input {
            height: 38px;
            border-radius: 20px;
            border: 1px solid var(--border-light);
            padding: 0 42px 0 16px;
            font-size: 14px;
            width: 200px;
            font-family: var(--font-family);
            transition: all 0.2s ease;
            background: var(--color-bg-light);
        }
        .search-box input::placeholder {
            color: #9AA7B4;
        }
        .search-box input:focus {
            outline: none;
            border-color: var(--color-accent-blue);
            box-shadow: 0 0 0 3px rgba(61, 127, 255, 0.25);
            background: #fff;
        }
        .search-box button {
            position: absolute;
            right: 4px;
            top: 4px;
            width: 30px;
            height: 30px;
            border: none;
            background: transparent;
            color: #888;
            cursor: pointer;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
        }
        .search-box button:hover {
            color: var(--color-accent-blue);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--color-text-dark);
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            border-radius: 8px;
        }
        .menu-toggle:hover {
            background: var(--color-bg-light);
        }

        /* ===== Page Hero（分类页窄Hero） ===== */
        .page-hero {
            background: linear-gradient(135deg, var(--color-primary) 0%, #0B2740 60%, #143A5C 100%);
            padding: 70px 0 72px;
            position: relative;
            overflow: hidden;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(245, 184, 46, 0.25), transparent 65%);
            border-radius: 50%;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            color: #fff;
            font-size: 38px;
            line-height: 1.3;
            font-weight: 700;
            margin: 12px 0 16px;
        }
        .page-hero p {
            color: var(--color-text-dim);
            font-size: 16px;
            max-width: 640px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--color-text-dim);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: rgba(232, 240, 248, 0.7);
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
        }
        .breadcrumb i {
            font-size: 10px;
            color: rgba(232, 240, 248, 0.35);
        }
        .breadcrumb span {
            color: var(--color-accent);
        }

        /* ===== Sections ===== */
        .section {
            padding: 76px 0;
        }
        .section-light {
            background: var(--color-bg-light);
        }
        .section-white {
            background: #ffffff;
        }
        .section-dark {
            background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
            color: var(--color-text-bright);
            border-radius: 0;
        }
        .section-dark h2 {
            color: #fff;
        }
        .section-tag {
            display: inline-block;
            background: rgba(245, 184, 46, 0.12);
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 4px;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-head h2 {
            font-size: 30px;
            line-height: 1.3;
            color: var(--color-text-dark);
            margin-bottom: 10px;
        }
        .section-head p {
            color: var(--color-text-light-secondary);
            font-size: 16px;
            max-width: 560px;
            margin: 0 auto;
        }
        .section-dark .section-head p {
            color: var(--color-text-dim);
        }
        h2 {
            font-size: 30px;
            line-height: 1.3;
            font-weight: 700;
        }
        h3 {
            font-size: 18px;
            line-height: 1.4;
            font-weight: 600;
        }

        /* ===== 核心能力（两列信息流） ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 56px;
            align-items: center;
        }
        .feature-copy .lead {
            font-size: 16px;
            color: var(--color-text-light-secondary);
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }
        .feature-list li {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .feature-icon {
            width: 44px;
            height: 44px;
            min-width: 44px;
            border-radius: 10px;
            background: rgba(245, 184, 46, 0.1);
            border: 1px solid rgba(245, 184, 46, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 18px;
            flex-shrink: 0;
        }
        .feature-list h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 4px;
            color: var(--color-text-dark);
        }
        .feature-list p {
            font-size: 15px;
            color: var(--color-text-light-secondary);
            line-height: 1.6;
        }
        .feature-image {
            position: relative;
        }
        .feature-image img {
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            width: 100%;
            object-fit: cover;
        }
        .feature-image::before {
            content: "";
            position: absolute;
            top: 20px;
            right: -20px;
            width: 100%;
            height: 100%;
            background: rgba(61, 127, 255, 0.06);
            border-radius: var(--radius-card);
            z-index: -1;
        }

        /* ===== 服务指引卡片 ===== */
        .guide-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
        }
        .guide-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all 0.25s ease;
            display: flex;
            flex-direction: column;
        }
        .guide-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
        }
        .guide-card img {
            width: 100%;
            height: 200px;
            object-fit: cover;
        }
        .card-body {
            padding: 20px 24px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--color-text-dark);
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-body p {
            font-size: 14px;
            color: var(--color-text-light-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid #F0F2F5;
        }
        .card-meta .date {
            font-size: 13px;
            color: #8A9AAB;
        }
        .card-meta .date i {
            margin-right: 4px;
        }
        .card-meta .tag {
            background: rgba(245, 184, 46, 0.1);
            color: #B8860B;
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: 4px;
        }

        /* ===== 服务流程 ===== */
        .step-flow {
            display: flex;
            align-items: flex-start;
            justify-content: center;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        .step-item {
            text-align: center;
            flex: 1;
            max-width: 170px;
            padding: 24px 16px;
        }
        .step-num {
            display: inline-flex;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(245, 184, 46, 0.12);
            border: 1px solid rgba(245, 184, 46, 0.3);
            color: var(--color-accent);
            font-weight: 700;
            font-size: 15px;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            font-style: normal;
        }
        .step-item h3 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 8px;
        }
        .step-item p {
            color: var(--color-text-dim);
            font-size: 13px;
            line-height: 1.5;
        }
        .step-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(245, 184, 46, 0.5);
            padding-top: 40px;
            font-size: 14px;
            flex-shrink: 0;
        }

        /* ===== FAQ Accordion ===== */
        .container-narrow {
            max-width: 780px;
        }
        .accordion {
            border: none;
            background: transparent;
        }
        .accordion .accordion-item {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 10px;
            margin-bottom: 14px;
            list-style: none;
        }
        .accordion .accordion-item:last-child {
            margin-bottom: 0;
        }
        .accordion .accordion-item .accordion-title {
            background: #fff;
            border: none;
            border-radius: 10px;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-text-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            min-height: 44px;
            transition: all 0.2s ease;
        }
        .accordion .accordion-item .accordion-title::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 13px;
            color: var(--color-accent);
            transition: transform 0.2s ease;
            margin-left: 12px;
            flex-shrink: 0;
        }
        .accordion .accordion-item.is-active .accordion-title::after {
            transform: rotate(180deg);
        }
        .accordion .accordion-item .accordion-title:hover {
            color: var(--color-accent);
            background: #FFFBEB;
        }
        .accordion .accordion-item .accordion-content {
            border: none;
            background: #fff;
            padding: 0 24px 20px;
            color: var(--color-text-light-secondary);
            font-size: 15px;
            line-height: 1.7;
        }
        .accordion .accordion-item .accordion-content p {
            margin: 0;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            background: linear-gradient(120deg, var(--color-primary) 0%, #0B2A44 60%, var(--color-secondary) 100%);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-banner::after {
            content: "";
            position: absolute;
            bottom: -100px;
            left: 30%;
            width: 400px;
            height: 200px;
            background: radial-gradient(ellipse, rgba(245, 184, 46, 0.18), transparent 70%);
            pointer-events: none;
        }
        .cta-banner .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            position: relative;
            z-index: 2;
            flex-wrap: wrap;
        }
        .cta-content h3 {
            color: #fff;
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .cta-content p {
            color: var(--color-text-dim);
            font-size: 15px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #081420;
            color: var(--color-text-dim);
            padding: 56px 0 24px;
            position: relative;
        }
        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--color-accent), transparent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 1fr;
            gap: 48px;
            margin-bottom: 40px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text-dim);
            max-width: 320px;
        }
        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-links li,
        .footer-contact li {
            margin-bottom: 8px;
            font-size: 14px;
        }
        .footer-links a {
            color: var(--color-text-dim);
            transition: color 0.2s ease;
        }
        .footer-links a:hover {
            color: var(--color-accent);
        }
        .footer-contact i {
            color: var(--color-accent);
            width: 20px;
            margin-right: 6px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(232, 240, 248, 0.4);
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom a {
            color: rgba(232, 240, 248, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1023px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0;
                padding: 10px 0;
                background: #fff;
                position: absolute;
                top: 72px;
                left: 0;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 8px 24px rgba(10, 26, 43, 0.06);
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                padding: 12px 24px;
                border-bottom: 1px solid #f0f0f0;
                width: 100%;
            }
            .nav-link:last-child {
                border-bottom: none;
            }
            .nav-link.active::after {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .header-actions {
                margin-left: auto;
            }
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .guide-grid {
                grid-template-columns: 1fr;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .step-flow {
                flex-direction: column;
                align-items: center;
            }
            .step-arrow {
                transform: rotate(90deg);
                padding: 8px 0;
            }
            .step-item {
                max-width: 100%;
                width: 100%;
            }
            .cta-banner .container {
                flex-direction: column;
                text-align: center;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 639px) {
            .container {
                padding: 0 20px;
            }
            .section {
                padding: 48px 0;
            }
            .page-hero {
                padding: 48px 0 56px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .header-actions .search-box {
                display: none;
            }
            .guide-card img {
                height: 170px;
            }
            .cta-banner {
                padding: 48px 0;
            }
            .cta-content h3 {
                font-size: 20px;
            }
            .btn-lg {
                width: 100%;
            }
        }

/* roulang page: article */
:root {
            --color-primary: #0A1A2B;
            --color-secondary: #112E4A;
            --color-accent: #F5B82E;
            --color-accent-blue: #3D7FFF;
            --color-light-bg: #F8FAFC;
            --color-dark-text: #12263A;
            --color-muted-text: #52616F;
            --color-border: #E5E9EF;
            --color-text-on-dark: #E8F0F8;
            --color-text-on-dark-muted: rgba(232, 240, 248, 0.65);
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            --radius-card: 12px;
            --radius-btn: 50px;
            --radius-search: 20px;
            --shadow-card: 0 8px 30px rgba(10, 26, 43, 0.08);
            --shadow-btn: 0 0 24px rgba(61, 127, 255, 0.45);
            --shadow-card-hover: 0 16px 40px rgba(10, 26, 43, 0.15);
            --transition-fast: 0.2s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.75;
            color: var(--color-dark-text);
            background: #ffffff;
            padding-bottom: 56px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        a:hover {
            color: var(--color-accent);
        }

        ul,
        ol {
            padding-left: 1.2em;
        }

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

        .container-narrow {
            max-width: 780px;
            margin: 0 auto;
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            font-family: var(--font-main);
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: all var(--transition-fast);
            line-height: 1;
        }

        .btn-primary {
            background: var(--color-accent-blue);
            color: #ffffff;
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover {
            background: #5f96ff;
            color: #ffffff;
            box-shadow: 0 0 32px rgba(61, 127, 255, 0.6);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(2px);
            box-shadow: none;
        }

        .btn-ghost {
            background: transparent;
            color: var(--color-text-on-dark);
            border: 1px solid rgba(255, 255, 255, 0.35);
        }

        .btn-ghost:hover {
            background: rgba(61, 127, 255, 0.12);
            color: #ffffff;
            border-color: var(--color-accent-blue);
        }

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

        /* 头部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: #ffffff;
            border-bottom: 1px solid var(--color-border);
            box-shadow: 0 2px 8px rgba(10, 26, 43, 0.04);
        }

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

        .logo-link {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #111111;
            white-space: nowrap;
            min-height: 44px;
        }

        .logo-link:hover {
            color: #111111;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--color-dark-text);
            padding: 10px 2px;
            position: relative;
            transition: color var(--transition-fast);
        }

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

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px 2px 0 0;
        }

        .nav-link:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 4px;
            border-radius: 4px;
        }

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

        .header-search {
            display: flex;
            align-items: center;
            background: #F2F5F8;
            border-radius: var(--radius-search);
            padding: 0 14px;
            height: 40px;
            width: 200px;
            border: 1px solid transparent;
            transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
        }

        .header-search:focus-within {
            border-color: var(--color-accent-blue);
            box-shadow: 0 0 0 3px rgba(61, 127, 255, 0.25);
        }

        .header-search input {
            border: none;
            background: transparent;
            flex: 1;
            font-size: 14px;
            color: var(--color-dark-text);
            outline: none;
            font-family: var(--font-main);
        }

        .header-search button {
            background: transparent;
            border: none;
            color: var(--color-muted-text);
            cursor: pointer;
            font-size: 14px;
            padding: 4px;
            transition: color var(--transition-fast);
        }

        .header-search button:hover {
            color: var(--color-accent-blue);
        }

        .header-search button:focus-visible {
            outline: 2px solid var(--color-accent);
            border-radius: 4px;
        }

        .mobile-toggle {
            display: none;
            background: none;
            border: 1px solid var(--color-border);
            border-radius: 8px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--color-dark-text);
            cursor: pointer;
            transition: all var(--transition-fast);
        }

        .mobile-toggle:hover {
            background: #F8FAFC;
            color: var(--color-accent-blue);
        }

        .mobile-toggle:focus-visible {
            outline: 2px solid var(--color-accent);
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            font-size: 14px;
            color: var(--color-muted-text);
            list-style: none;
            margin-bottom: 16px;
            padding: 0;
        }

        .breadcrumb li {
            display: inline-flex;
            align-items: center;
            min-height: 24px;
        }

        .breadcrumb li+li::before {
            content: '/';
            margin: 0 8px;
            color: #B0BAC5;
        }

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

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

        .breadcrumb .current {
            color: var(--color-muted-text);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 240px;
        }

        /* 文章头部 */
        .article-header {
            background: #F2F5F8;
            padding: 48px 0 40px;
            border-bottom: 1px solid var(--color-border);
        }

        .article-header h1 {
            font-size: 32px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 16px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 24px;
            font-size: 14px;
            color: var(--color-muted-text);
        }

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

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

        /* 正文区域 */
        .article-main {
            background: #ffffff;
            padding: 56px 0 48px;
        }

        .article-content {
            font-size: 17px;
            line-height: 1.8;
            color: #1E2A38;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-primary);
            margin: 36px 0 16px;
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--color-primary);
            margin: 28px 0 12px;
            line-height: 1.4;
        }

        .article-content p {
            margin-bottom: 20px;
        }

        .article-content ul,
        .article-content ol {
            margin: 16px 0 24px;
            padding-left: 24px;
        }

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

        .article-content li::marker {
            color: var(--color-accent);
        }

        .article-content blockquote {
            margin: 24px 0;
            padding: 16px 24px;
            border-left: 4px solid var(--color-accent);
            background: #F8FAFC;
            color: var(--color-muted-text);
            border-radius: 0 8px 8px 0;
        }

        .article-content img {
            margin: 24px auto;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }

        .article-content th,
        .article-content td {
            border: 1px solid var(--color-border);
            padding: 10px 12px;
            text-align: left;
        }

        .article-content th {
            background: #F8FAFC;
            font-weight: 600;
            color: var(--color-primary);
        }

        .article-content a {
            color: var(--color-accent-blue);
            text-decoration: underline;
        }

        .article-content a:hover {
            color: var(--color-accent);
        }

        /* 分享 */
        .article-share {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--color-border);
        }

        .share-label {
            font-size: 14px;
            color: var(--color-muted-text);
        }

        .share-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: #F2F5F8;
            color: var(--color-muted-text);
            font-size: 18px;
            cursor: pointer;
            border: none;
            transition: all var(--transition-fast);
        }

        .share-btn:hover {
            background: var(--color-accent-blue);
            color: #ffffff;
            transform: translateY(-2px);
        }

        .share-btn:focus-visible {
            outline: 2px solid var(--color-accent);
        }

        /* 上下篇 */
        .article-pager {
            display: flex;
            justify-content: space-between;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid var(--color-border);
            font-size: 14px;
        }

        .pager-prev,
        .pager-next {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .article-pager a {
            color: var(--color-muted-text);
            padding: 8px 12px;
            border-radius: 8px;
            transition: all var(--transition-fast);
        }

        .article-pager a:hover {
            color: var(--color-accent-blue);
            background: #F8FAFC;
        }

        /* 内容未找到 */
        .not-found {
            text-align: center;
            padding: 80px 24px;
        }

        .not-found i {
            font-size: 64px;
            color: #B0BAC5;
            margin-bottom: 16px;
            display: block;
        }

        .not-found p {
            font-size: 20px;
            color: var(--color-muted-text);
            margin-bottom: 24px;
        }

        /* 相关阅读 */
        .related-section {
            background: var(--color-light-bg);
            padding: 64px 0;
        }

        .related-section h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 32px;
            text-align: center;
        }

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

        .related-card {
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px solid var(--color-border);
            box-shadow: var(--shadow-card);
            overflow: hidden;
            transition: all var(--transition-fast);
            height: 100%;
        }

        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--color-accent);
        }

        .related-card-link {
            display: flex;
            flex-direction: column;
            text-decoration: none;
            color: inherit;
            height: 100%;
            padding: 16px;
        }

        .related-card-link:hover {
            color: inherit;
        }

        .related-card-img {
            margin: -16px -16px 16px;
            overflow: hidden;
            border-radius: var(--radius-card) var(--radius-card) 0 0;
        }

        .related-card-img img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .related-card h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.4;
            color: var(--color-dark-text);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            min-height: 44px;
        }

        .related-card p {
            font-size: 14px;
            color: var(--color-muted-text);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
            flex: 1;
        }

        .related-card-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--color-muted-text);
            border-top: 1px solid #F0F2F5;
            padding-top: 12px;
            margin-top: auto;
        }

        .related-card-meta span:last-child {
            color: var(--color-accent-blue);
            font-weight: 500;
            font-size: 13px;
        }

        /* 空态卡 */
        .empty-state {
            text-align: center;
            padding: 48px 24px;
            background: #ffffff;
            border-radius: var(--radius-card);
            border: 1px dashed var(--color-border);
            max-width: 420px;
            margin: 0 auto;
        }

        .empty-state i {
            font-size: 48px;
            color: #B0BAC5;
            margin-bottom: 16px;
            display: block;
        }

        .empty-state p {
            font-size: 16px;
            color: var(--color-muted-text);
        }

        /* CTA 横幅 */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary) 0%, #0B2740 100%);
            padding: 64px 24px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(245, 184, 46, 0.28) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 10%;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(61, 127, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h3 {
            font-size: 26px;
            font-weight: 700;
            color: var(--color-text-on-dark);
            margin-bottom: 12px;
        }

        .cta-section p {
            color: var(--color-text-on-dark-muted);
            font-size: 16px;
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }

        /* 页脚 */
        .site-footer {
            background: #081420;
            color: var(--color-text-on-dark-muted);
            padding: 48px 0 0;
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(to right, var(--color-accent), transparent);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding: 24px 0 32px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            min-height: 44px;
        }

        .footer-logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #ffffff;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.7;
            max-width: 320px;
            color: rgba(232, 240, 248, 0.5);
        }

        .footer-title {
            font-size: 15px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 14px;
        }

        .footer-links,
        .footer-contact {
            list-style: none;
            padding: 0;
        }

        .footer-links li,
        .footer-contact li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: var(--color-text-on-dark-muted);
            font-size: 14px;
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            min-height: 28px;
        }

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

        .footer-links a:focus-visible {
            outline: 2px solid var(--color-accent);
            border-radius: 4px;
        }

        .footer-contact li {
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(232, 240, 248, 0.55);
        }

        .footer-contact i {
            color: var(--color-accent);
            font-size: 13px;
            width: 18px;
            text-align: center;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 13px;
            color: rgba(232, 240, 248, 0.35);
            gap: 12px;
        }

        .footer-bottom a {
            color: rgba(232, 240, 248, 0.35);
            transition: color var(--transition-fast);
        }

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

        /* 固定CTA条 */
        .fixed-cta {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 90;
            height: 56px;
            background: rgba(10, 26, 43, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 20px;
            padding: 0 24px;
        }

        .fixed-cta span {
            font-size: 14px;
            color: var(--color-text-on-dark);
            white-space: nowrap;
        }

        .fixed-cta .btn {
            height: 36px;
            font-size: 14px;
            padding: 0 20px;
        }

        /* 移动端悬浮按钮 */
        .mobile-fab {
            display: none;
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 90;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-accent-blue);
            color: #ffffff;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            box-shadow: 0 4px 16px rgba(61, 127, 255, 0.5);
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
        }

        .mobile-fab:hover {
            transform: scale(1.05);
            background: #5f96ff;
            color: #ffffff;
        }

        .mobile-fab:focus-visible {
            outline: 2px solid var(--color-accent);
        }

        /* 响应式 */
        @media (min-width: 1024px) and (max-width: 1199px) {
            .container {
                max-width: 100%;
                padding: 0 32px;
            }
        }

        @media (max-width: 1023px) {
            .header-inner {
                flex-wrap: wrap;
                height: auto;
                padding: 12px 24px;
                gap: 10px;
            }

            .main-nav {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                box-shadow: 0 8px 24px rgba(10, 26, 43, 0.08);
                border-bottom: 1px solid var(--color-border);
                gap: 4px;
            }

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

            .main-nav .nav-link {
                width: 100%;
                padding: 12px 0;
                border-bottom: 1px solid #F0F2F5;
            }

            .main-nav .nav-link:last-child {
                border-bottom: none;
            }

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

            .main-nav .nav-link.active {
                color: var(--color-accent-blue);
            }

            .header-actions {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: #ffffff;
                padding: 16px 24px 24px;
                flex-direction: column;
                align-items: stretch;
                box-shadow: 0 8px 24px rgba(10, 26, 43, 0.08);
                border-bottom: 1px solid var(--color-border);
                gap: 12px;
            }

            .header-actions.open {
                display: flex;
            }

            .header-search {
                width: 100%;
            }

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

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

            .article-header h1 {
                font-size: 28px;
            }

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

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

        @media (max-width: 639px) {
            body {
                padding-bottom: 0;
            }

            .container {
                padding: 0 16px;
            }

            .header-inner {
                height: 64px;
                padding: 0 16px;
                flex-wrap: nowrap;
            }

            .header-logo .logo-link {
                font-size: 15px;
            }

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

            .article-header h1 {
                font-size: 24px;
            }

            .article-meta {
                gap: 12px;
                font-size: 13px;
            }

            .article-main {
                padding: 40px 0 32px;
            }

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

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

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

            .fixed-cta {
                display: none;
            }

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

            .article-pager {
                flex-direction: column;
                gap: 8px;
            }

            .breadcrumb .current {
                max-width: 160px;
            }

            .cta-section {
                padding: 48px 16px;
            }

            .cta-section h3 {
                font-size: 22px;
            }

            .cta-section p {
                font-size: 14px;
            }

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

            .related-section h2 {
                font-size: 24px;
            }
        }

/* roulang page: category2 */
:root {
            --color-primary: #0A1A2B;
            --color-secondary: #112E4A;
            --color-accent: #F5B82E;
            --color-accent-blue: #3D7FFF;
            --color-dark-2: #0E2334;
            --color-light: #F8FAFC;
            --text-main: #12263A;
            --text-sub: #52616F;
            --border-light: #E5E9EF;
            --shadow-card: 0 8px 30px rgba(10, 26, 43, 0.08);
            --shadow-dark: 0 20px 60px rgba(0, 0, 0, 0.45);
            --radius: 12px;
            --radius-sm: 4px;
            --radius-btn: 50px;
            --transition: 0.2s ease;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html,
        body {
            margin: 0;
            padding: 0;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: #ffffff;
            padding-bottom: 56px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--color-accent);
        }

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

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

        ul,
        ol {
            margin: 0;
            padding: 0;
        }

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

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 8px rgba(10, 26, 43, 0.04);
        }

        .header-inner {
            display: flex;
            align-items: center;
            gap: 32px;
            height: 72px;
        }

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

        .brand svg {
            width: 28px;
            height: 28px;
            flex: 0 0 28px;
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: #111111;
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            gap: 8px;
            margin: 0 auto;
        }

        .nav-link {
            position: relative;
            padding: 10px 16px;
            font-size: 15px;
            font-weight: 500;
            color: #333333;
            border-radius: 8px;
            min-height: 44px;
            display: inline-flex;
            align-items: center;
        }

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

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

        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 4px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }

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

        .search-form {
            display: flex;
            align-items: center;
            background: #F2F5F8;
            border-radius: 20px;
            padding: 4px 4px 4px 16px;
            border: 1px solid transparent;
            transition: all 0.2s ease;
        }

        .search-form:focus-within {
            border-color: var(--color-accent-blue);
            box-shadow: 0 0 0 3px rgba(61, 127, 255, 0.25);
            background: #ffffff;
        }

        .search-form input {
            border: none;
            background: transparent;
            outline: none;
            font-size: 14px;
            width: 150px;
            color: var(--text-main);
        }

        .search-form input::placeholder {
            color: #9AA5B1;
        }

        .search-form button {
            border: none;
            background: var(--color-accent-blue);
            color: #ffffff;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            transition: all 0.2s ease;
            padding: 0;
        }

        .search-form button:hover {
            background: #2F6FE6;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
            border-radius: var(--radius-btn);
            padding: 0 28px;
            height: 44px;
            font-size: 15px;
            transition: all 0.2s ease;
            cursor: pointer;
            border: none;
            line-height: 1;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--color-accent-blue);
            color: #ffffff;
            box-shadow: 0 0 24px rgba(61, 127, 255, 0.45);
        }

        .btn-primary:hover {
            background: #2F6FE6;
            color: #ffffff;
            box-shadow: 0 0 32px rgba(61, 127, 255, 0.6);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            transform: translateY(2px);
        }

        .btn-outline {
            background: transparent;
            color: #ffffff;
            border: 1px solid rgba(255, 255, 255, 0.3);
        }

        .btn-outline:hover {
            background: rgba(61, 127, 255, 0.08);
            color: #ffffff;
            border-color: var(--color-accent-blue);
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--text-main);
            width: 44px;
            height: 44px;
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        .nav-toggle:hover {
            background: #F2F5F8;
        }

        .mobile-menu {
            display: none;
            background: #ffffff;
            border-top: 1px solid var(--border-light);
            padding: 16px 24px 24px;
        }

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

        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav a {
            padding: 14px 12px;
            font-size: 16px;
            border-radius: 10px;
            min-height: 48px;
            display: flex;
            align-items: center;
        }

        .mobile-nav a:hover {
            background: #F2F5F8;
        }

        .mobile-nav a.active {
            color: var(--color-accent-blue);
            font-weight: 600;
        }

        .mobile-menu .search-form {
            width: 100%;
            margin-bottom: 12px;
        }

        .mobile-menu .search-form input {
            flex: 1;
            width: auto;
        }

        .mobile-menu .btn {
            width: 100%;
            margin-top: 4px;
        }

        /* ===== 分类页窄 Hero ===== */
        .page-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            min-height: 260px;
            display: flex;
            align-items: center;
            color: #ffffff;
            overflow: hidden;
            padding: 64px 0;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 26, 43, 0.94), rgba(10, 26, 43, 0.78));
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 24px 0;
            width: 100%;
        }

        .breadcrumb {
            font-size: 14px;
            color: rgba(232, 240, 248, 0.7);
            margin-bottom: 16px;
        }

        .breadcrumb a {
            color: rgba(232, 240, 248, 0.85);
        }

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

        .breadcrumb .sep {
            margin: 0 8px;
            opacity: 0.5;
        }

        .page-hero h1 {
            font-size: 42px;
            line-height: 1.3;
            margin: 0 0 16px;
            font-weight: 800;
            letter-spacing: 1px;
            color: #ffffff;
        }

        .hero-sub {
            max-width: 720px;
            margin: 0 auto;
            font-size: 17px;
            color: rgba(232, 240, 248, 0.85);
            line-height: 1.75;
        }

        .hero-sub strong {
            color: var(--color-accent);
            font-weight: 700;
        }

        /* ===== 数据条 ===== */
        .trust-strip {
            background: var(--color-secondary);
            color: #ffffff;
            padding: 36px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .trust-num {
            display: block;
            font-size: 28px;
            font-weight: 800;
            color: var(--color-accent);
            margin-bottom: 4px;
            letter-spacing: 1px;
        }

        .trust-label {
            font-size: 15px;
            color: rgba(232, 240, 248, 0.7);
        }

        /* ===== 核心方案九宫格 ===== */
        .plan-section {
            padding: 80px 0 96px;
            background: var(--color-light);
        }

        .section-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--color-primary);
            text-align: center;
            margin: 0 0 12px;
            letter-spacing: 0.5px;
            line-height: 1.3;
        }

        .section-sub {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
            color: var(--text-sub);
            font-size: 16px;
        }

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

        .plan-card {
            background: #ffffff;
            border: 1px solid var(--border-light);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow-card);
            transition: all 0.2s ease;
            position: relative;
            overflow: hidden;
        }

        .plan-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 16px 40px rgba(10, 26, 43, 0.12);
            border-color: var(--color-accent);
        }

        .plan-card .icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(245, 184, 46, 0.12);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            transition: transform 0.2s ease;
        }

        .plan-card:hover .icon {
            transform: rotate(-2deg);
        }

        .plan-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 10px;
            line-height: 1.4;
        }

        .plan-card p {
            font-size: 15px;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.7;
        }

        /* ===== 合作流程 ===== */
        .process-section {
            padding: 80px 0;
            background: #ffffff;
        }

        .process-grid {
            align-items: center;
        }

        .process-image img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-dark);
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        .process-content h2 {
            font-size: 30px;
            color: var(--color-primary);
            margin: 0 0 12px;
            font-weight: 800;
        }

        .process-content > p {
            color: var(--text-sub);
            margin: 0 0 28px;
            font-size: 16px;
        }

        .process-steps {
            list-style: none;
            display: grid;
            gap: 20px;
        }

        .process-steps li {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .step-num {
            width: 40px;
            height: 40px;
            flex: 0 0 40px;
            border-radius: 50%;
            background: var(--color-secondary);
            color: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 14px;
        }

        .step-text h4 {
            font-size: 17px;
            color: var(--text-main);
            margin: 0 0 4px;
            line-height: 1.4;
        }

        .step-text p {
            font-size: 15px;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.6;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--color-primary);
            color: #E8F0F8;
            padding: 80px 0;
        }

        .faq-section .section-title {
            color: #ffffff;
        }

        .faq-section .section-sub {
            color: rgba(232, 240, 248, 0.65);
        }

        .faq-section .accordion {
            background: transparent;
            border: none;
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.16);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: background 0.2s ease;
        }

        .accordion-item:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        .accordion-title {
            background: transparent !important;
            color: #E8F0F8 !important;
            font-size: 16px;
            font-weight: 600;
            padding: 18px 20px;
            border: none;
            line-height: 1.5;
            min-height: 56px;
            display: flex;
            align-items: center;
            transition: background 0.2s ease;
        }

        .accordion-title:hover,
        .accordion-title:focus {
            background: rgba(255, 255, 255, 0.08) !important;
            color: #ffffff !important;
        }

        .accordion-title::before {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            margin-right: 14px;
            color: var(--color-accent);
            transition: transform 0.2s ease;
            flex-shrink: 0;
        }

        .accordion-title::after {
            content: none !important;
        }

        .accordion-item.is-active .accordion-title::before {
            transform: rotate(180deg);
        }

        .accordion-content {
            background: rgba(255, 255, 255, 0.04) !important;
            padding: 0 20px 20px !important;
            color: rgba(232, 240, 248, 0.75);
            font-size: 15px;
        }

        .accordion-content p {
            margin: 0;
            line-height: 1.75;
        }

        /* ===== 窄 CTA 条 ===== */
        .cta-strip {
            background: #E8F1FF;
            padding: 40px 0;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-strip h3 {
            margin: 0;
            font-size: 20px;
            color: var(--color-primary);
            font-weight: 700;
            line-height: 1.4;
        }

        .cta-strip .btn {
            box-shadow: 0 0 20px rgba(61, 127, 255, 0.25);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #081420;
            color: rgba(232, 240, 248, 0.7);
            padding: 56px 0 24px;
            position: relative;
        }

        .site-footer::before {
            content: "";
            display: block;
            height: 2px;
            background: linear-gradient(90deg, var(--color-accent), transparent);
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
        }

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

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }

        .footer-logo svg {
            width: 28px;
            height: 28px;
            flex: 0 0 28px;
        }

        .footer-logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #ffffff;
        }

        .footer-desc {
            font-size: 15px;
            color: rgba(232, 240, 248, 0.65);
            max-width: 320px;
            margin: 0;
            line-height: 1.75;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .footer-links,
        .footer-contact {
            list-style: none;
            display: grid;
            gap: 10px;
        }

        .footer-links a {
            color: rgba(232, 240, 248, 0.7);
            font-size: 15px;
        }

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

        .footer-contact li {
            font-size: 15px;
        }

        .footer-contact i {
            color: var(--color-accent);
            margin-right: 8px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            font-size: 14px;
            color: rgba(232, 240, 248, 0.5);
        }

        .footer-bottom a {
            color: rgba(232, 240, 248, 0.5);
        }

        .footer-bottom a:hover {
            color: #ffffff;
        }

        /* ===== 固定底部转化条 ===== */
        .sticky-bar {
            position: fixed;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(10, 26, 43, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 12px 0;
            z-index: 50;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .sticky-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .sticky-bar p {
            margin: 0;
            color: #E8F0F8;
            font-size: 15px;
        }

        .sticky-bar .btn {
            height: 40px;
            padding: 0 20px;
            font-size: 14px;
        }

        .sticky-fab {
            display: none;
            position: fixed;
            right: 20px;
            bottom: 20px;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--color-accent-blue);
            color: #ffffff;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 8px 24px rgba(61, 127, 255, 0.5);
            z-index: 50;
            transition: all 0.2s ease;
        }

        .sticky-fab:hover {
            transform: translateY(-3px);
            color: #ffffff;
            box-shadow: 0 12px 32px rgba(61, 127, 255, 0.6);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1023px) {
            .header-inner {
                height: auto;
                flex-wrap: wrap;
                gap: 12px;
                padding: 12px 0;
            }

            .brand {
                flex: 1;
            }

            .main-nav {
                display: none;
            }

            .header-tools {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

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

            .process-content {
                margin-top: 8px;
            }

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

            .page-hero {
                min-height: 240px;
            }
        }

        @media (max-width: 639px) {
            body {
                padding-bottom: 80px;
            }

            .sticky-bar {
                display: none;
            }

            .sticky-fab {
                display: flex;
            }

            .page-hero {
                min-height: 200px;
                padding: 48px 0;
            }

            .page-hero h1 {
                font-size: 32px;
            }

            .hero-sub {
                font-size: 16px;
            }

            .trust-strip {
                padding: 28px 0;
            }

            .trust-item {
                padding: 12px 8px;
            }

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

            .plan-section {
                padding: 64px 0;
            }

            .process-section {
                padding: 64px 0;
            }

            .section-title {
                font-size: 26px;
            }

            .process-content h2 {
                font-size: 26px;
            }

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

            .cta-strip {
                padding: 32px 0;
            }

            .cta-inner {
                flex-direction: column;
                text-align: center;
            }

            .faq-section {
                padding: 64px 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .brand-text {
                font-size: 17px;
            }

            .sticky-fab {
                right: 16px;
                bottom: 16px;
            }
        }