:root {
            --primary: #1A365D;      /* 烟草深蓝 */
            --primary-light: #2A4A7A;
            --secondary: #ECC94B;    /* 烤烟蛋黄 */
            --secondary-light: #F5D95E;
            --bg-white: #FAF8F5;     /* 象牙白 */
            --bg-card: #FFFFFF;
            --text-dark: #1E2A3A;
            --text-muted: #5A6B7A;
            --border-light: #E8E3DA;
            --shadow: 0 8px 30px rgba(26, 54, 93, 0.08);
            --font: 'PingFang SC', 'Microsoft YaHei', sans-serif;
        }
        
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            font-family: var(--font);
            background: var(--bg-white);
            color: var(--text-dark);
            line-height: 1.7;
        }
        a { text-decoration: none; color: inherit; }
        ul { list-style: none; }
        img { max-width: 100%; display: block; }
        .container-3d308d {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* ----- 通用按钮 ----- */
        .btn-12aa90 {
            display: inline-block;
            padding: 14px 40px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            letter-spacing: 0.5px;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
        }
        .btn-primary-267710 {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(26, 54, 93, 0.3);
        }
        .btn-primary-267710:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(26, 54, 93, 0.35);
        }
        .btn-secondary-adcea3 {
            background: var(--secondary);
            color: var(--primary);
            box-shadow: 0 4px 16px rgba(236, 201, 75, 0.3);
        }
        .btn-secondary-adcea3:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
        }
        .btn-outline-8fb49f {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline-8fb49f:hover {
            background: var(--primary);
            color: #fff;
        }
        
        /* ----- 通用标题 ----- */
        .section-bd7d4c {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .section-alt-a9d814 {
            background: #FFFFFF;
        }
        .section-header-fbd43f {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-title-4c15af {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            position: relative;
            display: inline-block;
            margin-bottom: 12px;
        }
        .section-title-4c15af::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--secondary);
            margin: 10px auto 0;
            border-radius: 4px;
        }
        .section-subtitle-869843 {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* ----- 导航栏 (深蓝+黄) ----- */
        .header-98fcd5 {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--primary);
            box-shadow: 0 2px 20px rgba(26, 54, 93, 0.2);
        }
        .navbar-c6b0d8 { padding: 0 20px; }
        .nav-container-90e2d6 {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .nav-logo-8fdc2e {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.6rem;
            font-weight: 700;
            letter-spacing: 1px;
        }
        .nav-logo-icon-55323b {
            font-size: 2rem;
            color: var(--secondary);
        }
        .nav-logo-text-ce8975 { color: #fff; }
        .nav-menu-0a86b9 {
            display: flex;
            gap: 6px;
            align-items: center;
        }
        .nav-item-9f963e .nav-link-12ca42 {
            color: rgba(255,255,255,0.8);
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.3s;
        }
        .nav-item-9f963e .nav-link-12ca42:hover,
        .nav-item-9f963e .nav-link-12ca42.active {
            color: #fff;
            background: rgba(236, 201, 75, 0.2);
        }
        .nav-item-9f963e .nav-link-12ca42.active::after {
            content: '';
            display: block;
            width: 20px;
            height: 2px;
            background: var(--secondary);
            margin: 2px auto 0;
            border-radius: 2px;
        }
        .nav-toggle-8551e4 {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }
        .nav-toggle-8551e4 .bar-fe925e {
            width: 28px;
            height: 3px;
            background: #fff;
            border-radius: 4px;
            transition: 0.3s;
        }
        @media (max-width: 992px) {
            .nav-menu-0a86b9 {
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: var(--primary);
                flex-direction: column;
                padding: 20px;
                gap: 8px;
                display: none;
                box-shadow: 0 20px 30px rgba(0,0,0,0.15);
            }
            .nav-menu-0a86b9.active { display: flex; }
            .nav-toggle-8551e4 { display: flex; }
        }
        
        /* ----- Hero (深蓝底，亮黄点缀) ----- */
        .hero-7852c6 {
            background: linear-gradient(135deg, var(--primary) 0%, #0F2847 100%);
            color: #fff;
            padding: 90px 0 70px;
            position: relative;
            overflow: hidden;
        }
        .hero-7852c6::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(236, 201, 75, 0.08) 0%, transparent 70%);
            border-radius: 50%;
        }
        .hero-content-116504 { position: relative; z-index: 1; }
        .hero-text-efcc25 { max-width: 800px; }
        .hero-title-ecb73f {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 10px;
        }
        .hero-title-ecb73f .yellow-21696d {
            color: var(--secondary);
            text-shadow: 0 0 30px rgba(236, 201, 75, 0.2);
        }
        .hero-subtitle-24474b {
            font-size: 1.3rem;
            color: rgba(255,255,255,0.85);
            font-weight: 300;
            letter-spacing: 2px;
            margin-bottom: 30px;
        }
        .hero-features-a93e8e {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin: 30px 0 35px;
        }
        .hero-feature-06555d {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.1rem;
        }
        .hero-feature-06555d i {
            font-size: 1.8rem;
            color: var(--secondary);
        }
        .hero-buttons-777356 {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .hero-buttons-777356 .btn-secondary-adcea3 i {
            margin-right: 8px;
        }
        @media (max-width: 768px) {
            .hero-title-ecb73f { font-size: 2.2rem; }
            .hero-subtitle-24474b { font-size: 1rem; }
            .hero-features-a93e8e { gap: 20px; }
        }
        
        /* ----- 卡片 (白底，黄蓝边框) ----- */
        .card-2f1e1f {
            background: #fff;
            border-radius: 16px;
            padding: 30px 25px;
            border: 1px solid var(--border-light);
            transition: all 0.3s;
            box-shadow: var(--shadow);
        }
        .card-2f1e1f:hover {
            transform: translateY(-6px);
            border-color: var(--secondary);
            box-shadow: 0 12px 40px rgba(26, 54, 93, 0.08);
        }
        
        /* ----- 关于我们 (前置) ----- */
        .about-content-f7f383 {
            display: flex;
            gap: 50px;
            align-items: center;
            flex-wrap: wrap;
        }
        .about-text-808d00 { flex: 1; min-width: 300px; }
        .about-text-808d00 h3 {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .about-text-808d00 p {
            color: var(--text-muted);
            line-height: 1.9;
            margin-bottom: 25px;
        }
        .about-features-18c5f1 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .about-feature-4991e0 {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .about-feature-4991e0 i {
            font-size: 1.6rem;
            color: var(--secondary);
            margin-top: 4px;
        }
        .about-feature-content-745cb9 h4 {
            font-size: 1rem;
            color: var(--text-dark);
            margin-bottom: 2px;
        }
        .about-feature-content-745cb9 p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }
        .about-image-9bd7ed { flex: 1; min-width: 280px; }
        .about-image-9bd7ed img {
            border-radius: 20px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
        }
        .company-values-f5d7e0 {
            margin-top: 50px;
            text-align: center;
        }
        .company-values-f5d7e0 h3 {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 35px;
        }
        .values-grid-03dced {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 25px;
        }
        .value-item-250b4d {
            background: #fff;
            padding: 30px 20px;
            border-radius: 16px;
            border: 1px solid var(--border-light);
            transition: 0.3s;
        }
        .value-item-250b4d:hover {
            border-color: var(--secondary);
            transform: translateY(-4px);
        }
        .value-icon-5a2bac {
            font-size: 2.8rem;
            color: var(--secondary);
            margin-bottom: 15px;
        }
        .value-item-250b4d h4 {
            color: var(--text-dark);
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .value-item-250b4d p {
            color: var(--text-muted);
            font-size: 0.92rem;
        }
        
        /* ----- 核心服务 (黄蓝撞色) ----- */
        .services-grid-b9badd {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 30px;
        }
        .service-card-a821d9 {
            background: #fff;
            border-radius: 16px;
            padding: 35px 25px;
            border: 1px solid var(--border-light);
            text-align: center;
            transition: 0.4s;
            box-shadow: var(--shadow);
        }
        .service-card-a821d9:hover {
            border-color: var(--secondary);
            transform: translateY(-8px);
        }
        .service-icon-b29b90 {
            width: 70px;
            height: 70px;
            margin: 0 auto 20px;
            background: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            color: var(--secondary);
        }
        .service-card-a821d9 h3 {
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .service-card-a821d9 p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .services-stats-b066b5 {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 40px;
            background: var(--primary);
            padding: 30px 20px;
            border-radius: 20px;
            color: #fff;
        }
        .services-stats-b066b5 .stat-item-408413 {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .services-stats-b066b5 .stat-item-408413 i {
            font-size: 2.4rem;
            color: var(--secondary);
        }
        .services-stats-b066b5 .stat-content-6012d9 .stat-number-d463a3 {
            display: block;
            font-size: 2rem;
            font-weight: 700;
            color: var(--secondary);
        }
        .services-stats-b066b5 .stat-content-6012d9 .stat-label-19f523 {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
        }
        
        /* ----- 优势 (亮黄点缀) ----- */
        .advantages-content-2a9d38 {
            display: flex;
            gap: 50px;
            align-items: center;
            flex-wrap: wrap;
        }
        .advantages-text-c39879 { flex: 1; min-width: 300px; }
        .advantage-item-97648e {
            display: flex;
            gap: 20px;
            margin-bottom: 30px;
            align-items: flex-start;
        }
        .advantage-icon-4b1073 {
            width: 60px;
            height: 60px;
            min-width: 60px;
            background: var(--secondary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--primary);
            transition: 0.3s;
        }
        .advantage-item-97648e:hover .advantage-icon-4b1073 {
            background: var(--primary);
            color: var(--secondary);
        }
        .advantage-content-3206db h3 {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .advantage-content-3206db p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .advantages-image-26468b { flex: 1; min-width: 280px; }
        .advantages-image-26468b img {
            border-radius: 20px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
        }
        
        /* ----- 产品 (更多卡片) ----- */
        .product-categories-5a26a6 {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 40px;
        }
        .category-filter-33cd85 {
            padding: 8px 26px;
            border-radius: 30px;
            background: #fff;
            border: 2px solid var(--border-light);
            color: var(--text-muted);
            font-weight: 500;
            cursor: pointer;
            transition: 0.3s;
            font-size: 0.95rem;
        }
        .category-filter-33cd85:hover,
        .category-filter-33cd85.active {
            background: var(--secondary);
            color: var(--primary);
            border-color: var(--secondary);
        }
        .products-grid-e4065a {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .product-card-6b55ed {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: 0.4s;
            box-shadow: var(--shadow);
        }
        .product-card-6b55ed:hover {
            transform: translateY(-10px);
            border-color: var(--secondary);
            box-shadow: 0 16px 48px rgba(26, 54, 93, 0.08);
        }
        .product-image-52e603 {
            height: 200px;
            overflow: hidden;
            background: var(--bg-white);
        }
        .product-image-52e603 img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .product-info-bfb7d3 { padding: 20px 22px 25px; }
        .product-info-bfb7d3 h3 {
            font-size: 1.25rem;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .product-category-tag-f28649 {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .product-desc-bbfcb6 {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 14px;
        }
        .product-features-ea668f {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .product-features-ea668f span i {
            color: var(--secondary);
            margin-right: 4px;
        }
        
        /* 价格标签 (黄色高亮) */
        .product-price-cbc3c0 {
            display: inline-block;
            background: var(--secondary);
            color: var(--primary);
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            margin-top: 8px;
        }
        
        /* ----- 新闻 ----- */
        .news-grid-b0b97f {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .news-card-0c1dce {
            display: flex;
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: 0.3s;
        }
        .news-card-0c1dce:hover {
            border-color: var(--secondary);
            transform: translateY(-5px);
        }
        .news-date-554673 {
            min-width: 80px;
            background: var(--primary);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 15px 10px;
            color: var(--secondary);
        }
        .news-date-554673 .date-day-b79c61 {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1;
        }
        .news-date-554673 .date-month-07bfe7 {
            font-size: 0.85rem;
            opacity: 0.8;
        }
        .news-content-a097ca { padding: 18px 22px; flex: 1; }
        .news-content-a097ca h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .news-content-a097ca h3 a {
            color: var(--text-dark);
            transition: 0.3s;
        }
        .news-content-a097ca h3 a:hover { color: var(--primary); }
        .news-content-a097ca p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin-bottom: 10px;
        }
        .news-meta-575d82 {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .news-meta-575d82 i { color: var(--secondary); margin-right: 4px; }
        .news-more-97891d { text-align: center; margin-top: 40px; }
        
        /* ----- FAQ (黄色边框) ----- */
        .faq-container-50cfa0 { max-width: 800px; margin: 0 auto; }
        .faq-item-49aa37 {
            background: #fff;
            border-radius: 12px;
            margin-bottom: 16px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: 0.3s;
        }
        .faq-item-49aa37:hover { border-color: var(--secondary); }
        .faq-question-764cf5 {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 25px;
            cursor: pointer;
        }
        .faq-question-764cf5 h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
        }
        .faq-icon-d27126 {
            color: var(--secondary);
            transition: 0.3s;
            font-size: 1.2rem;
        }
        .faq-item-49aa37.active .faq-icon-d27126 { transform: rotate(180deg); }
        .faq-answer-bb6faf {
            padding: 0 25px 20px;
            color: var(--text-muted);
            display: none;
            line-height: 1.8;
        }
        .faq-item-49aa37.active .faq-answer-bb6faf { display: block; }
        
        /* ----- 口碑 (评论) ----- */
        .testimonials-grid-0e6331 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .testimonial-card-f56f3d {
            background: #fff;
            padding: 28px 25px;
            border-radius: 16px;
            border: 1px solid var(--border-light);
            transition: 0.3s;
        }
        .testimonial-card-f56f3d:hover {
            border-color: var(--secondary);
            transform: translateY(-6px);
        }
        .testimonial-header-10e20c {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
        }
        .testimonial-info-f06c96 h4 {
            font-size: 1.1rem;
            color: var(--primary);
        }
        .testimonial-rating-de474d {
            color: var(--secondary);
            font-size: 0.9rem;
            letter-spacing: 2px;
        }
        .testimonial-content-838c19 p {
            color: var(--text-muted);
            font-style: italic;
            line-height: 1.7;
        }
        .testimonials-stats-bb4f02 {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 30px;
            margin-top: 50px;
            padding: 30px 20px;
            background: var(--primary);
            border-radius: 20px;
            color: #fff;
        }
        .testimonials-stats-bb4f02 .stat-item-408413 {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .testimonials-stats-bb4f02 .stat-icon-8409ab {
            font-size: 2.2rem;
            color: var(--secondary);
        }
        .testimonials-stats-bb4f02 .stat-content-6012d9 .stat-number-d463a3 {
            display: block;
            font-size: 2rem;
            font-weight: 700;
            color: var(--secondary);
        }
        .testimonials-stats-bb4f02 .stat-content-6012d9 .stat-label-19f523 {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
        }
        
        /* ----- 友情链接 (暖白) ----- */
        .flink-section-352496 {
            padding: 30px 0;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .flink-header-d69c41 {
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .flink-section-352496 ul {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }
        .flink-section-352496 ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: 0.3s;
        }
        .flink-section-352496 ul li a:hover {
            color: var(--primary);
        }
        
        /* ----- 页脚 (深蓝+黄) ----- */
        .footer-c4aed9 {
            background: var(--primary);
            color: rgba(255,255,255,0.85);
            padding: 60px 0 30px;
        }
        .footer-content-bc2377 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo-a005b2 {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 15px;
        }
        .footer-logo-a005b2 i { color: var(--secondary); }
        .footer-desc-3adf0d {
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 20px;
            opacity: 0.8;
        }
        .footer-social-5ac888 {
            display: flex;
            gap: 16px;
        }
        .social-link-c2b576 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
            color: #fff;
            font-size: 1.2rem;
            transition: 0.3s;
        }
        .social-link-c2b576:hover {
            background: var(--secondary);
            color: var(--primary);
            transform: translateY(-3px);
        }
        .footer-section-2b2705 h3 {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 18px;
            position: relative;
        }
        .footer-section-2b2705 h3::after {
            content: '';
            display: block;
            width: 30px;
            height: 3px;
            background: var(--secondary);
            margin-top: 8px;
        }
        .footer-links-2a0953 li { margin-bottom: 10px; }
        .footer-links-2a0953 li a {
            color: rgba(255,255,255,0.75);
            transition: 0.3s;
            font-size: 0.95rem;
        }
        .footer-links-2a0953 li a:hover {
            color: var(--secondary);
            padding-left: 6px;
        }
        .contact-item-8ff3d3 {
            display: flex;
            gap: 12px;
            margin-bottom: 14px;
            align-items: flex-start;
        }
        .contact-item-8ff3d3 i {
            font-size: 1.2rem;
            color: var(--secondary);
            margin-top: 3px;
            min-width: 20px;
        }
        .contact-content-c1e787 {
            display: flex;
            flex-direction: column;
            font-size: 0.9rem;
        }
        .contact-content-c1e787 span:first-child {
            opacity: 0.6;
            font-size: 0.8rem;
        }
        .contact-content-c1e787 a {
            color: #fff;
        }
        .contact-content-c1e787 a:hover { color: var(--secondary); }
        .footer-bottom-2dd19f {
            border-top: 1px solid rgba(255,255,255,0.15);
            padding-top: 25px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 15px;
            font-size: 0.9rem;
        }
        .footer-bottom-2dd19f a {
            color: rgba(255,255,255,0.7);
            margin-left: 20px;
            transition: 0.3s;
        }
        .footer-bottom-2dd19f a:hover { color: var(--secondary); }
        .footer-copyright-584fed p { opacity: 0.8; }
        
        /* ----- 回到顶部 (黄色) ----- */
        .back-to-top-68600e {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--secondary);
            color: var(--primary);
            border: none;
            border-radius: 50%;
            font-size: 1.4rem;
            box-shadow: 0 4px 20px rgba(236, 201, 75, 0.4);
            cursor: pointer;
            transition: 0.3s;
            display: none;
            z-index: 999;
        }
        .back-to-top-68600e:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(236, 201, 75, 0.5);
        }
        
        /* 响应式 */
        @media (max-width: 768px) {
            .section-bd7d4c { padding: 50px 0; }
            .section-title-4c15af { font-size: 2rem; }
            .hero-title-ecb73f { font-size: 2rem; }
            .about-features-18c5f1 { grid-template-columns: 1fr; }
            .footer-content-bc2377 { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 480px) {
            .footer-content-bc2377 { grid-template-columns: 1fr; }
            .footer-bottom-2dd19f { flex-direction: column; align-items: center; }
            .footer-bottom-2dd19f a { margin: 0 10px; }
        }