: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-8a2708 {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        
        /* ----- 通用按钮 ----- */
        .btn-1d7d5f {
            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-3137a6 {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(26, 54, 93, 0.3);
        }
        .btn-primary-3137a6:hover {
            background: var(--primary-light);
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(26, 54, 93, 0.35);
        }
        .btn-secondary-5fa33f {
            background: var(--secondary);
            color: var(--primary);
            box-shadow: 0 4px 16px rgba(236, 201, 75, 0.3);
        }
        .btn-secondary-5fa33f:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
        }
        .btn-outline-d13b40 {
            background: transparent;
            border: 2px solid var(--primary);
            color: var(--primary);
        }
        .btn-outline-d13b40:hover {
            background: var(--primary);
            color: #fff;
        }
        
        /* ----- 通用标题 ----- */
        .section-9d0028 {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-light);
        }
        .section-alt-a27cd5 {
            background: #FFFFFF;
        }
        .section-header-fe747a {
            text-align: center;
            margin-bottom: 50px;
        }
        .section-title-59ad80 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            position: relative;
            display: inline-block;
            margin-bottom: 12px;
        }
        .section-title-59ad80::after {
            content: '';
            display: block;
            width: 60px;
            height: 4px;
            background: var(--secondary);
            margin: 10px auto 0;
            border-radius: 4px;
        }
        .section-subtitle-91e96c {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 700px;
            margin: 0 auto;
        }
        
        /* ----- 导航栏 (深蓝+黄) ----- */
        .header-b24bd8 {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--primary);
            box-shadow: 0 2px 20px rgba(26, 54, 93, 0.2);
        }
        .navbar-0cfd8d { padding: 0 20px; }
        .nav-container-8ac043 {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
            max-width: 1200px;
            margin: 0 auto;
        }
        .nav-logo-35e16e {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.6rem;
            font-weight: 700;
            letter-spacing: 1px;
        }
        .nav-logo-icon-006419 {
            font-size: 2rem;
            color: var(--secondary);
        }
        .nav-logo-text-0dee9f { color: #fff; }
        .nav-menu-f6bd02 {
            display: flex;
            gap: 6px;
            align-items: center;
        }
        .nav-item-ea05db .nav-link-43effd {
            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-ea05db .nav-link-43effd:hover,
        .nav-item-ea05db .nav-link-43effd.active {
            color: #fff;
            background: rgba(236, 201, 75, 0.2);
        }
        .nav-item-ea05db .nav-link-43effd.active::after {
            content: '';
            display: block;
            width: 20px;
            height: 2px;
            background: var(--secondary);
            margin: 2px auto 0;
            border-radius: 2px;
        }
        .nav-toggle-b765c8 {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
        }
        .nav-toggle-b765c8 .bar-0755fb {
            width: 28px;
            height: 3px;
            background: #fff;
            border-radius: 4px;
            transition: 0.3s;
        }
        @media (max-width: 992px) {
            .nav-menu-f6bd02 {
                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-f6bd02.active { display: flex; }
            .nav-toggle-b765c8 { display: flex; }
        }
        
        /* ----- Hero (深蓝底，亮黄点缀) ----- */
        .hero-c24404 {
            background: linear-gradient(135deg, var(--primary) 0%, #0F2847 100%);
            color: #fff;
            padding: 90px 0 70px;
            position: relative;
            overflow: hidden;
        }
        .hero-c24404::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-a7ee14 { position: relative; z-index: 1; }
        .hero-text-ae71dd { max-width: 800px; }
        .hero-title-ac8629 {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 10px;
        }
        .hero-title-ac8629 .yellow-4d3d96 {
            color: var(--secondary);
            text-shadow: 0 0 30px rgba(236, 201, 75, 0.2);
        }
        .hero-subtitle-7ce6fa {
            font-size: 1.3rem;
            color: rgba(255,255,255,0.85);
            font-weight: 300;
            letter-spacing: 2px;
            margin-bottom: 30px;
        }
        .hero-features-62c5c7 {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin: 30px 0 35px;
        }
        .hero-feature-dc3588 {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.1rem;
        }
        .hero-feature-dc3588 i {
            font-size: 1.8rem;
            color: var(--secondary);
        }
        .hero-buttons-afecc5 {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .hero-buttons-afecc5 .btn-secondary-5fa33f i {
            margin-right: 8px;
        }
        @media (max-width: 768px) {
            .hero-title-ac8629 { font-size: 2.2rem; }
            .hero-subtitle-7ce6fa { font-size: 1rem; }
            .hero-features-62c5c7 { gap: 20px; }
        }
        
        /* ----- 卡片 (白底，黄蓝边框) ----- */
        .card-248e75 {
            background: #fff;
            border-radius: 16px;
            padding: 30px 25px;
            border: 1px solid var(--border-light);
            transition: all 0.3s;
            box-shadow: var(--shadow);
        }
        .card-248e75: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-81656e {
            display: flex;
            gap: 50px;
            align-items: center;
            flex-wrap: wrap;
        }
        .about-text-ca76b0 { flex: 1; min-width: 300px; }
        .about-text-ca76b0 h3 {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .about-text-ca76b0 p {
            color: var(--text-muted);
            line-height: 1.9;
            margin-bottom: 25px;
        }
        .about-features-ad8bd9 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .about-feature-c0fcf7 {
            display: flex;
            gap: 14px;
            align-items: flex-start;
        }
        .about-feature-c0fcf7 i {
            font-size: 1.6rem;
            color: var(--secondary);
            margin-top: 4px;
        }
        .about-feature-content-62d874 h4 {
            font-size: 1rem;
            color: var(--text-dark);
            margin-bottom: 2px;
        }
        .about-feature-content-62d874 p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin: 0;
        }
        .about-image-9816c9 { flex: 1; min-width: 280px; }
        .about-image-9816c9 img {
            border-radius: 20px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
        }
        .company-values-b2d030 {
            margin-top: 50px;
            text-align: center;
        }
        .company-values-b2d030 h3 {
            font-size: 1.8rem;
            color: var(--primary);
            margin-bottom: 35px;
        }
        .values-grid-57a92b {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 25px;
        }
        .value-item-7e8470 {
            background: #fff;
            padding: 30px 20px;
            border-radius: 16px;
            border: 1px solid var(--border-light);
            transition: 0.3s;
        }
        .value-item-7e8470:hover {
            border-color: var(--secondary);
            transform: translateY(-4px);
        }
        .value-icon-13bede {
            font-size: 2.8rem;
            color: var(--secondary);
            margin-bottom: 15px;
        }
        .value-item-7e8470 h4 {
            color: var(--text-dark);
            font-size: 1.2rem;
            margin-bottom: 8px;
        }
        .value-item-7e8470 p {
            color: var(--text-muted);
            font-size: 0.92rem;
        }
        
        /* ----- 核心服务 (黄蓝撞色) ----- */
        .services-grid-8f9b26 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 30px;
        }
        .service-card-919b05 {
            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-919b05:hover {
            border-color: var(--secondary);
            transform: translateY(-8px);
        }
        .service-icon-3e609c {
            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-919b05 h3 {
            font-size: 1.3rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .service-card-919b05 p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .services-stats-af98d1 {
            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-af98d1 .stat-item-02e75b {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .services-stats-af98d1 .stat-item-02e75b i {
            font-size: 2.4rem;
            color: var(--secondary);
        }
        .services-stats-af98d1 .stat-content-b64c1a .stat-number-c36e0e {
            display: block;
            font-size: 2rem;
            font-weight: 700;
            color: var(--secondary);
        }
        .services-stats-af98d1 .stat-content-b64c1a .stat-label-d42f5d {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
        }
        
        /* ----- 优势 (亮黄点缀) ----- */
        .advantages-content-30fd09 {
            display: flex;
            gap: 50px;
            align-items: center;
            flex-wrap: wrap;
        }
        .advantages-text-e5e6fc { flex: 1; min-width: 300px; }
        .advantage-item-646433 {
            display: flex;
            gap: 20px;
            margin-bottom: 30px;
            align-items: flex-start;
        }
        .advantage-icon-396eb4 {
            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-646433:hover .advantage-icon-396eb4 {
            background: var(--primary);
            color: var(--secondary);
        }
        .advantage-content-2e115c h3 {
            font-size: 1.2rem;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .advantage-content-2e115c p {
            color: var(--text-muted);
            font-size: 0.95rem;
        }
        .advantages-image-f007bb { flex: 1; min-width: 280px; }
        .advantages-image-f007bb img {
            border-radius: 20px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
        }
        
        /* ----- 产品 (更多卡片) ----- */
        .product-categories-8a41e7 {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 40px;
        }
        .category-filter-7c8e43 {
            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-7c8e43:hover,
        .category-filter-7c8e43.active {
            background: var(--secondary);
            color: var(--primary);
            border-color: var(--secondary);
        }
        .products-grid-f550b3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .product-card-fc27d2 {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: 0.4s;
            box-shadow: var(--shadow);
        }
        .product-card-fc27d2:hover {
            transform: translateY(-10px);
            border-color: var(--secondary);
            box-shadow: 0 16px 48px rgba(26, 54, 93, 0.08);
        }
        .product-image-213679 {
            height: 200px;
            overflow: hidden;
            background: var(--bg-white);
        }
        .product-image-213679 img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .product-info-b5cbc8 { padding: 20px 22px 25px; }
        .product-info-b5cbc8 h3 {
            font-size: 1.25rem;
            color: var(--primary);
            margin-bottom: 4px;
        }
        .product-category-tag-edd4be {
            font-size: 0.8rem;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .product-desc-889975 {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 14px;
        }
        .product-features-d98cd2 {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .product-features-d98cd2 span i {
            color: var(--secondary);
            margin-right: 4px;
        }
        
        /* 价格标签 (黄色高亮) */
        .product-price-7bbeee {
            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-5ce3ea {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        .news-card-113f05 {
            display: flex;
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: 0.3s;
        }
        .news-card-113f05:hover {
            border-color: var(--secondary);
            transform: translateY(-5px);
        }
        .news-date-3402c4 {
            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-3402c4 .date-day-f76ffa {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1;
        }
        .news-date-3402c4 .date-month-f4966b {
            font-size: 0.85rem;
            opacity: 0.8;
        }
        .news-content-5c70fb { padding: 18px 22px; flex: 1; }
        .news-content-5c70fb h3 {
            font-size: 1.1rem;
            margin-bottom: 8px;
        }
        .news-content-5c70fb h3 a {
            color: var(--text-dark);
            transition: 0.3s;
        }
        .news-content-5c70fb h3 a:hover { color: var(--primary); }
        .news-content-5c70fb p {
            color: var(--text-muted);
            font-size: 0.92rem;
            margin-bottom: 10px;
        }
        .news-meta-72276a {
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .news-meta-72276a i { color: var(--secondary); margin-right: 4px; }
        .news-more-3384c6 { text-align: center; margin-top: 40px; }
        
        /* ----- FAQ (黄色边框) ----- */
        .faq-container-876720 { max-width: 800px; margin: 0 auto; }
        .faq-item-fc69be {
            background: #fff;
            border-radius: 12px;
            margin-bottom: 16px;
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: 0.3s;
        }
        .faq-item-fc69be:hover { border-color: var(--secondary); }
        .faq-question-11afa1 {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 25px;
            cursor: pointer;
        }
        .faq-question-11afa1 h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
        }
        .faq-icon-d39234 {
            color: var(--secondary);
            transition: 0.3s;
            font-size: 1.2rem;
        }
        .faq-item-fc69be.active .faq-icon-d39234 { transform: rotate(180deg); }
        .faq-answer-e78cdd {
            padding: 0 25px 20px;
            color: var(--text-muted);
            display: none;
            line-height: 1.8;
        }
        .faq-item-fc69be.active .faq-answer-e78cdd { display: block; }
        
        /* ----- 口碑 (评论) ----- */
        .testimonials-grid-0dae1a {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }
        .testimonial-card-14c73e {
            background: #fff;
            padding: 28px 25px;
            border-radius: 16px;
            border: 1px solid var(--border-light);
            transition: 0.3s;
        }
        .testimonial-card-14c73e:hover {
            border-color: var(--secondary);
            transform: translateY(-6px);
        }
        .testimonial-header-4eba14 {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 12px;
        }
        .testimonial-info-7645cc h4 {
            font-size: 1.1rem;
            color: var(--primary);
        }
        .testimonial-rating-353275 {
            color: var(--secondary);
            font-size: 0.9rem;
            letter-spacing: 2px;
        }
        .testimonial-content-cf8658 p {
            color: var(--text-muted);
            font-style: italic;
            line-height: 1.7;
        }
        .testimonials-stats-7c40f6 {
            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-7c40f6 .stat-item-02e75b {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        .testimonials-stats-7c40f6 .stat-icon-d61c94 {
            font-size: 2.2rem;
            color: var(--secondary);
        }
        .testimonials-stats-7c40f6 .stat-content-b64c1a .stat-number-c36e0e {
            display: block;
            font-size: 2rem;
            font-weight: 700;
            color: var(--secondary);
        }
        .testimonials-stats-7c40f6 .stat-content-b64c1a .stat-label-d42f5d {
            color: rgba(255,255,255,0.7);
            font-size: 0.9rem;
        }
        
        /* ----- 友情链接 (暖白) ----- */
        .flink-section-7a1b3d {
            padding: 30px 0;
            background: var(--bg-white);
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
        }
        .flink-header-451b32 {
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 10px;
        }
        .flink-section-7a1b3d ul {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }
        .flink-section-7a1b3d ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: 0.3s;
        }
        .flink-section-7a1b3d ul li a:hover {
            color: var(--primary);
        }
        
        /* ----- 页脚 (深蓝+黄) ----- */
        .footer-f3cf0f {
            background: var(--primary);
            color: rgba(255,255,255,0.85);
            padding: 60px 0 30px;
        }
        .footer-content-09407c {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo-5098a5 {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 15px;
        }
        .footer-logo-5098a5 i { color: var(--secondary); }
        .footer-desc-fc8dd4 {
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 20px;
            opacity: 0.8;
        }
        .footer-social-14253d {
            display: flex;
            gap: 16px;
        }
        .social-link-cf0f7f {
            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-cf0f7f:hover {
            background: var(--secondary);
            color: var(--primary);
            transform: translateY(-3px);
        }
        .footer-section-513480 h3 {
            color: #fff;
            font-size: 1.2rem;
            margin-bottom: 18px;
            position: relative;
        }
        .footer-section-513480 h3::after {
            content: '';
            display: block;
            width: 30px;
            height: 3px;
            background: var(--secondary);
            margin-top: 8px;
        }
        .footer-links-32a8d1 li { margin-bottom: 10px; }
        .footer-links-32a8d1 li a {
            color: rgba(255,255,255,0.75);
            transition: 0.3s;
            font-size: 0.95rem;
        }
        .footer-links-32a8d1 li a:hover {
            color: var(--secondary);
            padding-left: 6px;
        }
        .contact-item-37f121 {
            display: flex;
            gap: 12px;
            margin-bottom: 14px;
            align-items: flex-start;
        }
        .contact-item-37f121 i {
            font-size: 1.2rem;
            color: var(--secondary);
            margin-top: 3px;
            min-width: 20px;
        }
        .contact-content-16fdfd {
            display: flex;
            flex-direction: column;
            font-size: 0.9rem;
        }
        .contact-content-16fdfd span:first-child {
            opacity: 0.6;
            font-size: 0.8rem;
        }
        .contact-content-16fdfd a {
            color: #fff;
        }
        .contact-content-16fdfd a:hover { color: var(--secondary); }
        .footer-bottom-2a0c46 {
            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-2a0c46 a {
            color: rgba(255,255,255,0.7);
            margin-left: 20px;
            transition: 0.3s;
        }
        .footer-bottom-2a0c46 a:hover { color: var(--secondary); }
        .footer-copyright-a8974d p { opacity: 0.8; }
        
        /* ----- 回到顶部 (黄色) ----- */
        .back-to-top-df2f81 {
            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-df2f81:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 30px rgba(236, 201, 75, 0.5);
        }
        
        /* 响应式 */
        @media (max-width: 768px) {
            .section-9d0028 { padding: 50px 0; }
            .section-title-59ad80 { font-size: 2rem; }
            .hero-title-ac8629 { font-size: 2rem; }
            .about-features-ad8bd9 { grid-template-columns: 1fr; }
            .footer-content-09407c { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 480px) {
            .footer-content-09407c { grid-template-columns: 1fr; }
            .footer-bottom-2a0c46 { flex-direction: column; align-items: center; }
            .footer-bottom-2a0c46 a { margin: 0 10px; }
        }