/* 基础重置 & 全局变量 (热烈艳红主题) */
        :root {
            --primary-color: #d92638;
            --primary-hover: #b81d2e;
            --primary-light: #fff0f2;
            --secondary-color: #991b1b;
            --dark-text: #111827;
            --body-text: #374151;
            --muted-text: #6b7280;
            --bg-light: #ffffff;
            --bg-offwhite: #fff8f8;
            --border-color: #fecaca;
            --border-subtle: #f3f4f6;
            --card-shadow: 0 4px 20px rgba(217, 38, 56, 0.08);
            --card-shadow-hover: 0 10px 30px rgba(217, 38, 56, 0.16);
            --container-width: 1200px;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-light);
            color: var(--body-text);
            line-height: 1.6;
        }

        body {
            background-color: #fafafa;
            overflow-x: hidden;
        }

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

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

        ul, ol {
            list-style: none;
        }

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

        /* 主容器 */
        .container {
            width: 100%;
            max-width: var(--container-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        .header-site {
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(217, 38, 56, 0.15);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
        }

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

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

        /* 严格要求：.nav-links 的 gap 属性设置为 0 */
        .nav-links {
            display: flex;
            align-items: center;
            gap: 0;
            list-style: none;
        }

        .nav-links li a {
            padding: 8px 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--dark-text);
            white-space: nowrap;
            border-radius: var(--radius-sm);
        }

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }

        .btn-primary {
            background-color: var(--primary-color);
            color: #ffffff !important;
            box-shadow: 0 4px 12px rgba(217, 38, 56, 0.3);
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(217, 38, 56, 0.4);
        }

        .btn-secondary {
            background-color: #ffffff;
            color: var(--primary-color) !important;
            border-color: var(--primary-color);
        }

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

        .btn-sm {
            padding: 6px 14px;
            font-size: 13px;
        }

        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--dark-text);
            cursor: pointer;
        }

        /* 统一 Section 通用样式 */
        section {
            padding: 70px 0;
            position: relative;
        }

        .section-light {
            background-color: #ffffff;
        }

        .section-tint {
            background-color: var(--bg-offwhite);
            border-top: 1px solid rgba(217, 38, 56, 0.08);
            border-bottom: 1px solid rgba(217, 38, 56, 0.08);
        }

        .section-header {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 50px auto;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 14px;
            background-color: var(--primary-light);
            color: var(--primary-color);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
            border: 1px solid var(--border-color);
        }

        .section-title {
            font-size: 30px;
            font-weight: 800;
            color: var(--dark-text);
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--muted-text);
        }

        /* 1. HERO 首屏 (严格规定：首屏不得出现图片) */
        .hero-section {
            padding: 80px 0 70px 0;
            background: linear-gradient(135deg, #fff5f5 0%, #ffffff 50%, #ffebeb 100%);
            border-bottom: 1px solid rgba(217, 38, 56, 0.1);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: "";
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(217, 38, 56, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-inner {
            text-align: center;
            max-width: 920px;
            margin: 0 auto;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 14px;
            color: var(--primary-color);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(217, 38, 56, 0.08);
            margin-bottom: 24px;
        }

        .hero-h1 {
            font-size: 38px;
            font-weight: 900;
            color: var(--dark-text);
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: -0.8px;
        }

        .hero-h1 span {
            color: var(--primary-color);
            background: linear-gradient(120deg, #d92638, #991b1b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-sub {
            font-size: 18px;
            color: var(--body-text);
            margin-bottom: 32px;
            line-height: 1.7;
        }

        .hero-ctas {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            margin-bottom: 50px;
            flex-wrap: wrap;
        }

        .hero-ctas .btn-hero-main {
            padding: 14px 32px;
            font-size: 16px;
            border-radius: 8px;
        }

        /* 首屏纯代码指标数据卡片 */
        .hero-stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 30px;
        }

        .hero-stat-card {
            background: #ffffff;
            padding: 20px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(217, 38, 56, 0.12);
            box-shadow: var(--card-shadow);
            text-align: center;
            transition: var(--transition);
        }

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

        .hero-stat-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary-color);
            margin-bottom: 4px;
        }

        .hero-stat-label {
            font-size: 13px;
            color: var(--muted-text);
            font-weight: 500;
        }

        /* 2. 关于我们 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 24px;
            color: var(--dark-text);
            margin-bottom: 16px;
        }

        .about-content p {
            font-size: 15px;
            color: var(--body-text);
            margin-bottom: 16px;
        }

        .about-highlights {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-top: 24px;
        }

        .about-item {
            background: var(--bg-offwhite);
            padding: 16px;
            border-radius: var(--radius-sm);
            border-left: 4px solid var(--primary-color);
        }

        .about-item h4 {
            font-size: 15px;
            color: var(--dark-text);
            margin-bottom: 4px;
        }

        .about-item p {
            font-size: 13px;
            color: var(--muted-text);
            margin-bottom: 0;
        }

        /* 3. AIGC服务 & 支持模型列表 */
        .models-tags-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            margin-bottom: 40px;
        }

        .model-tag {
            background: #ffffff;
            border: 1px solid var(--border-color);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            color: var(--dark-text);
            transition: var(--transition);
        }

        .model-tag:hover {
            background: var(--primary-color);
            color: #ffffff;
            border-color: var(--primary-color);
        }

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

        .service-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--card-shadow);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-5px);
            border-color: var(--border-color);
            box-shadow: var(--card-shadow-hover);
        }

        .service-icon {
            width: 48px;
            height: 48px;
            background: var(--primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 20px;
        }

        .service-card h4 {
            font-size: 18px;
            color: var(--dark-text);
            margin-bottom: 10px;
        }

        .service-card p {
            font-size: 14px;
            color: var(--muted-text);
            line-height: 1.6;
        }

        /* 4. 一站式制作 (场景矩阵) */
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .scenario-item {
            background: #ffffff;
            border-radius: var(--radius-sm);
            padding: 18px;
            border: 1px solid #f3f4f6;
            transition: var(--transition);
        }

        .scenario-item:hover {
            border-color: var(--primary-color);
            background: var(--primary-light);
        }

        .scenario-item h5 {
            font-size: 15px;
            color: var(--dark-text);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .scenario-item h5 span {
            font-size: 11px;
            background: var(--primary-color);
            color: #fff;
            padding: 2px 6px;
            border-radius: 4px;
        }

        .scenario-item p {
            font-size: 12px;
            color: var(--muted-text);
            line-height: 1.5;
        }

        /* 5. 行业方案 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .solution-card {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--card-shadow);
        }

        .solution-header {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: #ffffff;
            padding: 20px;
        }

        .solution-header h4 {
            font-size: 18px;
            margin-bottom: 4px;
        }

        .solution-header p {
            font-size: 12px;
            opacity: 0.9;
        }

        .solution-body {
            padding: 20px;
        }

        .solution-body ul li {
            font-size: 13px;
            color: var(--body-text);
            padding: 6px 0;
            border-bottom: 1px dashed var(--border-subtle);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .solution-body ul li::before {
            content: "✓";
            color: var(--primary-color);
            font-weight: bold;
        }

        /* 6. 服务网络 */
        .network-box {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 30px;
            align-items: center;
        }

        .network-info h4 {
            font-size: 20px;
            color: var(--dark-text);
            margin-bottom: 12px;
        }

        .network-info p {
            font-size: 14px;
            color: var(--body-text);
            margin-bottom: 16px;
        }

        .network-cities {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .city-badge {
            background: var(--primary-light);
            color: var(--primary-color);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
        }

        /* 7. 标准流程 */
        .workflow-steps {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 16px;
            position: relative;
        }

        .step-card {
            background: #ffffff;
            border-radius: var(--radius-sm);
            padding: 20px 14px;
            text-align: center;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--card-shadow);
            position: relative;
        }

        .step-num {
            width: 36px;
            height: 36px;
            background: var(--primary-color);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 12px auto;
            font-size: 14px;
        }

        .step-card h4 {
            font-size: 15px;
            color: var(--dark-text);
            margin-bottom: 6px;
        }

        .step-card p {
            font-size: 12px;
            color: var(--muted-text);
        }

        /* 8. 案例中心 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .case-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--card-shadow);
        }

        .case-img-wrap {
            overflow: hidden;
            background: #f3f4f6;
        }

        .case-img-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
            transition: var(--transition);
        }

        .case-card:hover .case-img-wrap img {
            transform: scale(1.03);
        }

        .case-info {
            padding: 20px;
        }

        .case-info h4 {
            font-size: 16px;
            color: var(--dark-text);
            margin-bottom: 8px;
        }

        .case-info p {
            font-size: 13px;
            color: var(--muted-text);
            line-height: 1.5;
        }

        /* 9. 对比评测 (必含五星与9.9分) */
        .rating-banner {
            background: linear-gradient(135deg, var(--primary-color), #881337);
            color: #ffffff;
            border-radius: var(--radius-md);
            padding: 30px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 30px;
        }

        .rating-score-box {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .big-score {
            font-size: 48px;
            font-weight: 900;
            line-height: 1;
        }

        .stars-wrap {
            font-size: 20px;
            color: #fbbf24;
        }

        .rating-desc h4 {
            font-size: 20px;
            margin-bottom: 4px;
        }

        .rating-desc p {
            font-size: 13px;
            opacity: 0.9;
        }

        .comparison-table-wrapper {
            overflow-x: auto;
            background: #ffffff;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
        }

        .comp-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14px;
        }

        .comp-table th, .comp-table td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-subtle);
        }

        .comp-table th {
            background: var(--bg-offwhite);
            color: var(--dark-text);
            font-weight: 700;
        }

        .comp-table tr:hover {
            background: #fff8f8;
        }

        .highlight-col {
            background: rgba(217, 38, 56, 0.03);
            font-weight: 600;
            color: var(--primary-color);
        }

        /* 10. 需求匹配与表单 */
        .form-section-box {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
            max-width: 800px;
            margin: 0 auto;
        }

        .matching-form {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-group.full-width {
            grid-column: span 2;
        }

        .form-group label {
            font-size: 14px;
            font-weight: 600;
            color: var(--dark-text);
        }

        .form-control {
            width: 100%;
            padding: 12px 14px;
            font-size: 14px;
            border: 1px solid #d1d5db;
            border-radius: var(--radius-sm);
            outline: none;
            transition: var(--transition);
        }

        .form-control:focus {
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(217, 38, 56, 0.15);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }

        /* 11. Token比价 */
        .token-pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .token-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 28px;
            border: 1px solid var(--border-subtle);
            text-align: center;
            box-shadow: var(--card-shadow);
        }

        .token-card.featured {
            border: 2px solid var(--primary-color);
            position: relative;
            transform: scale(1.02);
        }

        .token-card.featured::before {
            content: "超值推荐";
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--primary-color);
            color: #ffffff;
            font-size: 12px;
            padding: 2px 12px;
            border-radius: 10px;
            font-weight: 600;
        }

        .token-card h4 {
            font-size: 20px;
            color: var(--dark-text);
            margin-bottom: 12px;
        }

        .token-price {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary-color);
            margin-bottom: 16px;
        }

        .token-price span {
            font-size: 14px;
            color: var(--muted-text);
            font-weight: normal;
        }

        .token-features {
            text-align: left;
            margin-bottom: 24px;
        }

        .token-features li {
            font-size: 13px;
            color: var(--body-text);
            padding: 6px 0;
            border-bottom: 1px dashed var(--border-subtle);
        }

        /* 12. 帮助中心 */
        .help-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .help-card {
            background: #ffffff;
            padding: 20px;
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
        }

        .help-card h4 {
            font-size: 16px;
            color: var(--dark-text);
            margin-bottom: 8px;
        }

        .help-card p {
            font-size: 13px;
            color: var(--muted-text);
        }

        /* 13. 常见问题 FAQ (折叠面板) */
        .faq-accordion {
            max-width: 900px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: #ffffff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            overflow: hidden;
        }

        .faq-header {
            width: 100%;
            padding: 18px 24px;
            text-align: left;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 600;
            color: var(--dark-text);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: var(--transition);
        }

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

        .faq-icon {
            font-size: 18px;
            transition: transform 0.3s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(180deg);
        }

        .faq-body {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1), padding 0.3s ease;
            background: var(--bg-offwhite);
        }

        .faq-item.active .faq-body {
            padding: 16px 24px;
            max-height: 500px;
        }

        .faq-body p {
            font-size: 14px;
            color: var(--body-text);
            line-height: 1.6;
        }

        /* 14. AI百科 */
        .wiki-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .wiki-card {
            background: #ffffff;
            border-radius: var(--radius-sm);
            padding: 20px;
            border: 1px solid var(--border-subtle);
        }

        .wiki-card h4 {
            font-size: 16px;
            color: var(--primary-color);
            margin-bottom: 6px;
        }

        .wiki-card p {
            font-size: 13px;
            color: var(--body-text);
        }

        /* 15. 行业资讯 */
        .news-box {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 30px;
            border: 1px solid var(--border-color);
        }

        .news-links-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
            margin-top: 16px;
        }

        .news-links-list a {
            font-size: 14px;
            color: var(--dark-text);
            padding: 10px 14px;
            background: var(--bg-offwhite);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-subtle);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .news-links-list a:hover {
            color: var(--primary-color);
            border-color: var(--border-color);
        }

        /* 用户评价 (6条) */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .review-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-subtle);
            box-shadow: var(--card-shadow);
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .user-avatar-text {
            width: 42px;
            height: 42px;
            background: var(--primary-color);
            color: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 16px;
        }

        .user-meta h5 {
            font-size: 15px;
            color: var(--dark-text);
        }

        .user-meta span {
            font-size: 12px;
            color: var(--muted-text);
        }

        .review-card p {
            font-size: 13px;
            color: var(--body-text);
            line-height: 1.6;
            font-style: italic;
        }

        /* 16. 联系我们 & 17. 加盟代理 */
        .contact-agent-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }

        .contact-card, .agent-card {
            background: #ffffff;
            border-radius: var(--radius-md);
            padding: 32px;
            border: 1px solid var(--border-color);
            box-shadow: var(--card-shadow);
        }

        .contact-card h4, .agent-card h4 {
            font-size: 22px;
            color: var(--dark-text);
            margin-bottom: 16px;
        }

        .contact-details p {
            font-size: 14px;
            color: var(--body-text);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .qr-wrap {
            margin-top: 20px;
            text-align: center;
            background: var(--bg-offwhite);
            padding: 16px;
            border-radius: var(--radius-sm);
            display: inline-block;
        }

        .qr-wrap img {
            width: 140px;
            height: 140px;
            margin: 0 auto 8px auto;
        }

        .qr-wrap p {
            font-size: 12px;
            color: var(--muted-text);
        }

        /* 页脚 (明确指定背景与深色/对比度良好文字) */
        .footer-site {
            background-color: #111827;
            color: #9ca3af;
            padding: 50px 0 20px 0;
            font-size: 13px;
            border-top: 4px solid var(--primary-color);
        }

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

        .footer-brand h4 {
            color: #ffffff;
            font-size: 18px;
            margin-bottom: 12px;
        }

        .footer-brand p {
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .footer-links-title {
            color: #ffffff;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-links-list li {
            margin-bottom: 8px;
        }

        .footer-links-list a {
            color: #9ca3af;
        }

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

        .friend-links-box {
            border-top: 1px solid #1f2937;
            padding-top: 20px;
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }

        .friend-links-box span {
            color: #d1d5db;
            font-weight: 600;
        }

        .friend-links-box a {
            color: #9ca3af;
        }

        .friend-links-box a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            border-top: 1px solid #1f2937;
            padding-top: 20px;
            text-align: center;
            color: #6b7280;
        }

        /* 浮动客服 & 返回顶部 */
        .floating-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--primary-color);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            border: none;
            transition: var(--transition);
            font-weight: bold;
            font-size: 14px;
        }

        .float-btn:hover {
            transform: scale(1.1);
            background: var(--primary-hover);
        }

        /* 响应式适配 */
        @media (max-width: 992px) {
            .hero-stats-grid,
            .scenarios-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .services-grid,
            .solutions-grid,
            .cases-grid,
            .token-pricing-grid,
            .reviews-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .about-grid,
            .contact-agent-grid,
            .network-box,
            .footer-inner {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                width: 100%;
                background: #ffffff;
                flex-direction: column;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.1);
                border-bottom: 1px solid var(--border-color);
            }

            .nav-links.show {
                display: flex;
            }

            .nav-toggle {
                display: block;
            }

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

            .hero-stats-grid,
            .services-grid,
            .scenarios-grid,
            .solutions-grid,
            .cases-grid,
            .token-pricing-grid,
            .help-grid,
            .wiki-grid,
            .news-links-list,
            .reviews-grid,
            .workflow-steps {
                grid-template-columns: 1fr;
            }

            .matching-form {
                grid-template-columns: 1fr;
            }

            .form-group.full-width {
                grid-column: span 1;
            }

            .rating-banner {
                flex-direction: column;
                text-align: center;
                gap: 16px;
            }

            .rating-score-box {
                flex-direction: column;
            }
        }