/* 基础样式复位与宝蓝明艳风色彩定义 */
        :root {
            --primary: #0052CC;
            --primary-hover: #0040A3;
            --primary-light: #E9F1FE;
            --accent: #00B4D8;
            --dark: #0F172A;
            --gray-text: #475569;
            --light-bg: #F8FAFC;
            --border-color: #E2E8F0;
            --white: #FFFFFF;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            --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;
            color: var(--dark);
            background-color: var(--light-bg);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
        }

        /* 布局容器规范 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

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

        button, input, select, textarea {
            font-family: inherit;
        }

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
            backdrop-filter: blur(10px);
        }

        .nav-wrapper {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-area img {
            height: 40px;
        }

        .logo-title {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
        }

        .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--gray-text);
            padding: 5px 10px;
            border-radius: 4px;
        }

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

        .nav-btn {
            background-color: var(--primary);
            color: var(--white);
            padding: 8px 20px;
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            box-shadow: var(--shadow-sm);
        }

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

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 2px;
            background-color: var(--dark);
            transition: var(--transition);
        }

        /* 统一模块样式 */
        section {
            padding: 80px 0;
            position: relative;
        }

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

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

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px auto;
        }

        .section-tag {
            display: inline-block;
            padding: 4px 12px;
            background-color: var(--primary-light);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: 20px;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 15px;
            line-height: 1.3;
        }

        .section-subtitle {
            color: var(--gray-text);
            font-size: 1.05rem;
        }

        /* 1. Hero首屏 - 严禁出现图片，采用渐变和几何形状修饰 */
        .hero {
            background: radial-gradient(circle at 80% 20%, #E0F2FE 0%, #FFFFFF 100%);
            padding: 120px 0 100px 0;
            overflow: hidden;
        }

        .hero-content {
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
            position: relative;
            z-index: 10;
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: var(--dark);
            line-height: 1.2;
            margin-bottom: 20px;
        }

        .hero h1 span {
            color: var(--primary);
            position: relative;
        }

        .hero-desc {
            font-size: 1.25rem;
            color: var(--gray-text);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .hero-cta {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 50px;
        }

        .btn-main {
            background-color: var(--primary);
            color: var(--white);
            padding: 15px 35px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            box-shadow: 0 4px 14px rgba(0, 82, 204, 0.4);
            border: none;
        }

        .btn-main:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 82, 204, 0.6);
        }

        .btn-sub {
            background-color: var(--white);
            color: var(--primary);
            padding: 15px 35px;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            border: 2px solid var(--primary);
            box-shadow: var(--shadow-sm);
        }

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

        .hero-features {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            border-top: 1px solid var(--border-color);
            padding-top: 40px;
        }

        .hero-feature-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--dark);
        }

        .hero-feature-item svg {
            color: var(--accent);
        }

        /* 2. 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 30px;
            margin-top: -50px;
            position: relative;
            z-index: 20;
        }

        .stat-card {
            background-color: var(--white);
            padding: 30px;
            border-radius: 12px;
            box-shadow: var(--shadow-md);
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 5px;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--gray-text);
            font-weight: 500;
        }

        /* 3. 关于我们 & 平台介绍 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--dark);
        }

        .about-para {
            color: var(--gray-text);
            margin-bottom: 20px;
            font-size: 1rem;
            line-height: 1.8;
        }

        .about-bullets {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .about-bullet-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
        }

        .about-bullet-item svg {
            color: var(--primary);
            flex-shrink: 0;
        }

        .about-platform {
            background-color: var(--primary-light);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid rgba(0, 82, 204, 0.1);
        }

        .platform-title {
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .platform-tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .platform-tag {
            background-color: var(--white);
            color: var(--dark);
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        /* 4. AIGC服务 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .service-card {
            background-color: var(--white);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

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

        .service-icon {
            width: 50px;
            height: 50px;
            background-color: var(--primary-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 20px;
        }

        .service-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .service-card p {
            color: var(--gray-text);
            font-size: 0.95rem;
            margin-bottom: 15px;
        }

        .service-tag {
            display: inline-block;
            font-size: 0.8rem;
            background-color: var(--light-bg);
            color: var(--primary);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
        }

        /* 5. 一站式制作 & 行业解决方案 */
        .one-stop-section {
            background-color: var(--dark);
            color: var(--white);
        }

        .one-stop-section .section-title, .one-stop-section .section-subtitle {
            color: var(--white);
        }

        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 30px;
        }

        .solution-card {
            background-color: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            padding: 30px;
            transition: var(--transition);
        }

        .solution-card:hover {
            background-color: rgba(255, 255, 255, 0.08);
            border-color: var(--accent);
        }

        .solution-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 15px;
        }

        .solution-desc {
            color: #CBD5E1;
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

        /* 6. 全国服务网络 */
        .network-map-container {
            background-color: var(--white);
            border-radius: 16px;
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            text-align: center;
        }

        .network-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 20px;
            margin-top: 30px;
        }

        .network-node {
            padding: 15px;
            background-color: var(--light-bg);
            border-radius: 8px;
            font-weight: 600;
            border-left: 4px solid var(--primary);
        }

        /* 7. 标准化流程 */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }

        .timeline::after {
            content: '';
            position: absolute;
            width: 4px;
            background-color: var(--primary-light);
            top: 0;
            bottom: 0;
            left: 50%;
            margin-left: -2px;
        }

        .timeline-item {
            padding: 10px 40px;
            position: relative;
            background-color: inherit;
            width: 50%;
        }

        .timeline-item::after {
            content: '';
            position: absolute;
            width: 20px;
            height: 20px;
            right: -10px;
            background-color: var(--white);
            border: 4px solid var(--primary);
            top: 15px;
            border-radius: 50%;
            z-index: 1;
        }

        .left {
            left: 0;
        }

        .right {
            left: 50%;
        }

        .right::after {
            left: -10px;
        }

        .timeline-content {
            padding: 20px 30px;
            background-color: var(--white);
            position: relative;
            border-radius: 8px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .timeline-content h3 {
            font-size: 1.15rem;
            color: var(--primary);
            margin-bottom: 8px;
        }

        /* 8. 客户案例中心 - 包含指定图片资源 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .case-card {
            background-color: var(--white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
        }

        .case-img-wrapper {
            position: relative;
            width: 100%;
            height: 200px;
            overflow: hidden;
            background-color: #E2E8F0;
        }

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

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

        .case-info {
            padding: 25px;
        }

        .case-info h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .case-info p {
            color: var(--gray-text);
            font-size: 0.9rem;
        }

        /* 宣传横幅图布局区 */
        .promo-banner-section {
            background-color: var(--primary-light);
            padding: 60px 0;
            text-align: center;
        }

        .promo-images {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
            margin-top: 30px;
        }

        .promo-images img {
            border-radius: 10px;
            box-shadow: var(--shadow-md);
            max-width: 45%;
            height: auto;
        }

        /* 9. 对比评测 - 突出推荐五星，9.9/10分 */
        .comparison-table-wrapper {
            overflow-x: auto;
            background-color: var(--white);
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

        .comparison-table th, .comparison-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .comparison-table th {
            background-color: var(--light-bg);
            font-weight: 700;
        }

        .comparison-table tr:last-child td {
            border-bottom: none;
        }

        .comparison-table td.highlight {
            background-color: rgba(0, 82, 204, 0.02);
            font-weight: 600;
            color: var(--primary);
        }

        .rating-badge {
            background-color: #FEF08A;
            color: #854D0E;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 700;
            display: inline-block;
        }

        /* 11. Token比价 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
        }

        .price-card {
            background-color: var(--white);
            border-radius: 12px;
            padding: 25px;
            border: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .price-card.hot::before {
            content: '推荐';
            position: absolute;
            top: 15px;
            right: -30px;
            background-color: #EF4444;
            color: var(--white);
            transform: rotate(45deg);
            padding: 4px 30px;
            font-size: 0.75rem;
            font-weight: 700;
        }

        .price-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .price-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 15px;
        }

        .price-num span {
            font-size: 0.9rem;
            color: var(--gray-text);
            font-weight: normal;
        }

        .price-features {
            list-style: none;
            font-size: 0.9rem;
            color: var(--gray-text);
        }

        .price-features li {
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* 12 & 13. 职业技术培训 & 人工智能培训 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .training-card {
            background-color: var(--white);
            border-radius: 8px;
            padding: 20px;
            border-top: 4px solid var(--primary);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        .training-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .training-card p {
            font-size: 0.85rem;
            color: var(--gray-text);
        }

        /* 15. FAQ折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--white);
            border-radius: 8px;
            margin-bottom: 15px;
            border: 1px solid var(--border-color);
            overflow: hidden;
        }

        .faq-question {
            padding: 20px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: var(--transition);
        }

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

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out, padding 0.3s ease-out;
            color: var(--gray-text);
            font-size: 0.95rem;
            border-top: 1px solid transparent;
        }

        .faq-item.active .faq-answer {
            padding: 20px;
            max-height: 200px;
            border-top-color: var(--border-color);
        }

        .faq-icon {
            transition: transform 0.3s;
        }

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

        /* 16. AI术语百科 */
        .terms-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }

        .term-card {
            background-color: var(--white);
            padding: 20px;
            border-radius: 8px;
            border-left: 4px solid var(--accent);
            box-shadow: var(--shadow-sm);
        }

        .term-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--dark);
        }

        .term-card p {
            font-size: 0.85rem;
            color: var(--gray-text);
        }

        /* 17. 行业资讯 / 知识库 (最新文章) */
        .articles-wrapper {
            background-color: var(--white);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .article-links {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 20px;
            margin-top: 20px;
        }

        .article-item {
            padding: 15px;
            background-color: var(--light-bg);
            border-radius: 8px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .article-item:hover {
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .article-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 0.95rem;
            display: block;
            margin-bottom: 8px;
        }

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

        .article-meta {
            font-size: 0.8rem;
            color: var(--gray-text);
        }

        /* 用户评论 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .comment-card {
            background-color: var(--white);
            border-radius: 12px;
            padding: 30px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            position: relative;
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 15px;
        }

        .comment-avatar {
            width: 50px;
            height: 50px;
            background-color: var(--primary-light);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
        }

        .comment-name {
            font-weight: 700;
            font-size: 1rem;
        }

        .comment-role {
            font-size: 0.8rem;
            color: var(--gray-text);
        }

        .comment-text {
            color: var(--gray-text);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* 10 & 18. 智能需求匹配与联系我们表单 */
        .contact-section {
            background-color: var(--light-bg);
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 50px;
            align-items: start;
        }

        .contact-info-card {
            background-color: var(--white);
            border-radius: 12px;
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .contact-item {
            margin-bottom: 25px;
            display: flex;
            gap: 15px;
        }

        .contact-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .contact-text h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 5px;
        }

        .contact-text p {
            color: var(--gray-text);
            font-size: 0.95rem;
        }

        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 30px;
            flex-wrap: wrap;
        }

        .qr-item {
            text-align: center;
            background-color: var(--light-bg);
            padding: 15px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
        }

        .qr-item img {
            width: 120px;
            height: 120px;
            margin-bottom: 8px;
        }

        .qr-item p {
            font-size: 0.8rem;
            font-weight: 600;
        }

        .form-card {
            background-color: var(--white);
            border-radius: 12px;
            padding: 40px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
        }

        .form-group {
            margin-bottom: 20px;
        }

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            font-size: 0.9rem;
        }

        .form-input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            outline: none;
            transition: var(--transition);
        }

        .form-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.1);
        }

        .form-submit-btn {
            width: 100%;
            background-color: var(--primary);
            color: var(--white);
            padding: 14px;
            border: none;
            border-radius: 6px;
            font-size: 1rem;
            font-weight: 700;
            cursor: pointer;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .form-submit-btn:hover {
            background-color: var(--primary-hover);
        }

        /* 17. 加盟代理 */
        .agent-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
            color: var(--white);
            text-align: center;
        }

        .agent-section .section-title {
            color: var(--white);
        }

        .agent-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .agent-card {
            background-color: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 12px;
            padding: 30px;
            transition: var(--transition);
        }

        .agent-card:hover {
            background-color: rgba(255, 255, 255, 0.15);
            transform: translateY(-5px);
        }

        .agent-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: #FEF08A;
        }

        /* 底部链接与页脚 */
        footer {
            background-color: var(--dark);
            color: #94A3B8;
            padding: 60px 0 30px 0;
            border-top: 1px solid #1E293B;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h4 {
            color: var(--white);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-links {
            list-style: none;
        }

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

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

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .friend-links a {
            background-color: #1E293B;
            color: #94A3B8;
            padding: 4px 10px;
            font-size: 0.8rem;
            border-radius: 4px;
        }

        .friend-links a:hover {
            color: var(--white);
            background-color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid #1E293B;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.85rem;
        }

        /* 浮动工具栏 */
        .float-tools {
            position: fixed;
            bottom: 40px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary);
            color: var(--white);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-lg);
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--primary-hover);
            transform: scale(1.05);
        }

        .float-btn .tooltip {
            position: absolute;
            right: 60px;
            background-color: var(--dark);
            color: var(--white);
            padding: 8px 12px;
            border-radius: 6px;
            font-size: 0.8rem;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .float-btn:hover .tooltip {
            opacity: 1;
            visibility: visible;
        }

        /* 移动端响应式微调 */
        @media (max-width: 992px) {
            .about-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .timeline::after {
                left: 31px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 70px;
                padding-right: 25px;
            }
            .timeline-item::after {
                left: 21px;
            }
            .right {
                left: 0%;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background-color: var(--white);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 15px;
                box-shadow: var(--shadow-md);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero-cta {
                flex-direction: column;
                gap: 12px;
            }
            .btn-main, .btn-sub {
                width: 100%;
            }
            .promo-images img {
                max-width: 100%;
            }
        }