/* ==================== 基础样式 ==================== */
:root {
    /* 主题颜色 - 高端金色系 */
    --primary-color: #C9A962;
    --primary-dark: #B8944D;
    --primary-light: #D4B978;
    
    /* 辅助颜色 - 深色系 */
    --secondary-color: #2C3E50;
    --secondary-dark: #1A252F;
    --secondary-light: #34495E;
    
    /* 强调色 - 深棕色 */
    --accent-color: #8B4513;
    --accent-dark: #6B3410;
    --accent-light: #A0522D;
    
    /* 背景色 */
    --bg-color: #F8F7F4;
    --bg-light: #FFFFFF;
    --bg-dark: #F0EDE6;
    
    /* 文字颜色 */
    --text-primary: #2C3E50;
    --text-secondary: #5D6D7E;
    --text-light: #8E99A4;
    --text-white: #FFFFFF;
    
    /* 边框颜色 */
    --border-color: #E0DCD3;
    --border-light: #EAE6DD;
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.15);
    
    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-color);
    overflow-x: hidden;
}

.container-9b88a0 {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

ul {
    list-style: none;
}

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

/* ==================== 按钮样式 ==================== */
.btn-34454c {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    border: none;
    gap: 8px;
}

.btn-primary-0941e7 {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(201, 169, 98, 0.4);
}

.btn-primary-0941e7:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(201, 169, 98, 0.5);
}

.btn-secondary-18ea08 {
    background: transparent;
    color: var(--text-white);
    border: 2px solid var(--text-white);
}

.btn-secondary-18ea08:hover {
    background: var(--text-white);
    color: var(--primary-color);
}

.btn-block-123f20 {
    width: 100%;
}

/* ==================== 顶部导航 ==================== */
.header-7bd4d7 {
    position: relative;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.header-7bd4d7.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar-5bedfc {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-bb093a {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-bb093a i {
    font-size: 32px;
}

.nav-links-9525ae {
    display: flex;
    gap: 8px;
}

.nav-links-9525ae a {
    padding: 10px 16px;
    color: var(--text-primary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.nav-links-9525ae a:hover {
    color: var(--primary-color);
    background: rgba(201, 169, 98, 0.1);
}

.hamburger-47d6ac {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-primary);
}

/* ==================== 横幅区域 ==================== */
.hero-b3dc16 {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
    overflow: hidden;
}

.hero-b3dc16::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('./imgs/banner.jpg') center/cover;
    animation: float 20s linear infinite;
    opacity: 0.2;
}

@keyframes float {
    0% { transform: translateY(0) rotate(0deg); }
    100% { transform: translateY(-200px) rotate(360deg); }
}

.hero-overlay-d04705 {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(44, 62, 80, 0.9), rgba(26, 37, 47, 0.95));
}

.hero-content-2553be {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--text-white);
    max-width: 800px;
    padding: 0 20px;
}

.hero-title-87cbc6 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: 2px;
    text-shadow: 2px 4px 8px rgba(0,0,0,0.3);
}

.hero-subtitle-c98ffa {
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-buttons-55978a {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== 章节头部 ==================== */
.section-header-e39736 {
    text-align: center;
    margin-bottom: 60px;
}

.section-title-87f6ee {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-title-87f6ee::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    border-radius: 2px;
}

.section-subtitle-1fc6d7 {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 20px auto 0;
    line-height: 1.7;
}

/* ==================== 服务内容 ==================== */
.services-c02a5e {
    padding: 120px 0;
    background: var(--bg-light);
}

.services-grid-bb9179 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card-8f2334 {
    background: var(--bg-color);
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition-normal);
    border: 1px solid var(--border-light);
}

.service-card-8f2334:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-icon-f98095 {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.service-card-8f2334:hover .service-icon-f98095 {
    transform: scale(1.1) rotate(5deg);
}

.service-icon-f98095 i {
    font-size: 32px;
    color: var(--text-white);
}

.service-title-3cabbc {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.service-content-ba5b7b {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==================== 服务优势 ==================== */
.advantages-fe66d6 {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-color) 100%);
}

.advantages-grid-5c19b0 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage-card-e374c8 {
    background: var(--bg-light);
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
    border: 1px solid var(--border-light);
}

.advantage-card-e374c8::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-normal);
}

.advantage-card-e374c8:hover::before {
    transform: scaleX(1);
}

.advantage-card-e374c8:hover {
    box-shadow: var(--shadow-lg);
}

.advantage-number-1a8ebe {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.3;
    position: absolute;
    top: 20px;
    right: 20px;
}

.advantage-title-0cc425 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.advantage-content-d7f396 {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* ==================== 产品案例 ==================== */
.products-8c0e4d {
    padding: 120px 0;
    background: var(--secondary-color);
}

.products-8c0e4d .section-title-87f6ee {
    color: var(--text-white);
}

.products-8c0e4d .section-subtitle-1fc6d7 {
    color: rgba(255, 255, 255, 0.7);
}

.products-grid-205697 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-card-294f02 {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-light);
    transition: var(--transition-normal);
}

.product-card-294f02:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.product-image-efe485 {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.product-image-efe485 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.product-card-294f02:hover .product-image-efe485 img {
    transform: scale(1.1);
}

.product-overlay-65223a {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(44, 62, 80, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.product-card-294f02:hover .product-overlay-65223a {
    opacity: 1;
}

.product-overlay-65223a i {
    font-size: 32px;
    color: var(--primary-color);
}

.product-info-71afa4 {
    padding: 24px;
    background: var(--bg-light);
}

.product-title-f72428 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.product-desc-e59898 {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== 关于我们 ==================== */
.about-a25684 {
    padding: 120px 0;
    background: var(--bg-light);
}

.about-wrapper-d6315c {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image-277827 {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image-277827 img {
    width: 100%;
    height: auto;
}

.about-content-dc6fd7 {
    padding: 20px;
}

.about-header-8c694c {
    text-align: left;
    margin-bottom: 30px;
}

.about-header-8c694c .section-title-87f6ee::after {
    left: 0;
    transform: none;
}

.about-intro-3101e5 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-text-932b0a {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 40px;
}

.about-stats-01967d {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.stat-item-93dc95 {
    text-align: center;
    padding: 24px;
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.stat-item-93dc95:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-number-ed5530 {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-label-d51b21 {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== 新闻资讯 ==================== */
.news-40ed48 {
    padding: 120px 0;
    background: var(--bg-dark);
}

.news-grid-b832b8 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card-823e5a {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
}

.news-card-823e5a:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.news-image-06cbf9 {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-image-06cbf9 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.news-card-823e5a:hover .news-image-06cbf9 img {
    transform: scale(1.1);
}

.news-date-891c30 {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--primary-color);
    color: var(--text-white);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    text-align: center;
}

.date-day-789b4f {
    display: block;
    font-size: 20px;
    font-weight: 700;
}

.date-month-ef9e57 {
    font-size: 12px;
    opacity: 0.9;
}

.news-content-89944c {
    padding: 24px;
}

.news-title-5418ff {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-summary-aff0a3 {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-meta-e5a47b {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-light);
}

.news-time-f2bd06 {
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-readmore-9cf9e0 {
    color: var(--primary-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
}

.news-readmore-9cf9e0:hover {
    gap: 10px;
}

/* ==================== 常见问题 ==================== */
.faq-25d270 {
    padding: 120px 0;
    background: var(--bg-light);
}

.faq-list-1fdc60 {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item-360288 {
    margin-bottom: 16px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: var(--transition-normal);
}

.faq-item-360288:hover {
    border-color: var(--primary-color);
}

.faq-question-5593c3 {
    display: flex;
    align-items: center;
    padding: 24px;
    background: var(--bg-color);
    cursor: pointer;
    transition: var(--transition-fast);
}

.faq-question-5593c3:hover {
    background: rgba(201, 169, 98, 0.05);
}

.faq-icon-4cbf23 {
    color: var(--primary-color);
    font-size: 20px;
    margin-right: 16px;
}

.faq-text-97e8e7 {
    flex: 1;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
}

.faq-toggle-99dd46 {
    color: var(--primary-color);
    font-size: 16px;
    transition: var(--transition-fast);
}

.faq-item-360288.active .faq-toggle-99dd46 {
    transform: rotate(180deg);
}

.faq-answer-731206 {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item-360288.active .faq-answer-731206 {
    max-height: 300px;
}

.faq-answer-731206 p {
    padding: 24px;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    background: var(--bg-light);
}

/* ==================== 客户评价 ==================== */
.reviews-1bf8bc {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
}

.reviews-1bf8bc .section-title-87f6ee {
    color: var(--text-white);
}

.reviews-1bf8bc .section-subtitle-1fc6d7 {
    color: rgba(255, 255, 255, 0.7);
}

.reviews-grid-abc96c {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.review-card-3592af {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition-normal);
}

.review-card-3592af:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.review-header-be22aa {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 20px;
}

.reviewer-info-3058bb {
    display: flex;
    align-items: center;
    gap: 16px;
}

.reviewer-avatar-58e2e3 {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

.reviewer-details-237377 {
    flex: 1;
}

.reviewer-name-a6e1e8 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.reviewer-company-3a5725 {
    font-size: 14px;
    color: var(--text-secondary);
}

.review-rating-0b1cf9 {
    color: var(--primary-color);
    font-size: 14px;
}

.review-content-82375a {
    margin-bottom: 20px;
}

.review-content-82375a p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    font-style: italic;
}

.review-footer-c6d31b {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    font-size: 13px;
    color: var(--text-light);
}

.review-date-153a64 {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ==================== 联系我们 ==================== */
.contact-2f7422 {
    padding: 120px 0;
    background: var(--bg-color);
}

.contact-wrapper-8d2084 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info-41f794 {
    padding: 20px;
}

.contact-subtitle-c0babb {
    font-size: 18px;
    color: var(--text-secondary);
    margin-top: 16px;
}

.contact-details-713a69 {
    margin: 40px 0;
}

.contact-item-57467d {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-light);
}

.contact-icon-0067a2 {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon-0067a2 i {
    font-size: 20px;
    color: var(--text-white);
}

.contact-text-b12dab h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.contact-text-b12dab p {
    font-size: 15px;
    color: var(--text-secondary);
}

.social-links-8548a1 {
    display: flex;
    gap: 16px;
    margin-top: 30px;
}

.social-link-35c651 {
    width: 48px;
    height: 48px;
    background: var(--bg-light);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
    transition: var(--transition-normal);
}

.social-link-35c651:hover {
    background: var(--primary-color);
    color: var(--text-white);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.contact-form-wrapper-c50190 {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-title-e8f914 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 30px;
    text-align: center;
}

.form-row-e050b3 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group-872c48 {
    margin-bottom: 20px;
}

.form-group-872c48 label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group-872c48 input,
.form-group-872c48 select,
.form-group-872c48 textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-color);
    color: var(--text-primary);
    transition: var(--transition-fast);
    font-family: inherit;
}

.form-group-872c48 input:focus,
.form-group-872c48 select:focus,
.form-group-872c48 textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(201, 169, 98, 0.1);
}

.form-group-872c48 textarea {
    resize: vertical;
    min-height: 120px;
}

.flink-section-40a84e {
    background: white;
    color: #2d3748;
    padding: 30px 0;
}
.flink-header-8707ca{
    font-size: 20px;
    font-weight: 600;
    padding-bottom: 10px;
}
.flink-section-40a84e li{
    list-style: none;
    display: inline;
    padding-right: 20px;
}
.flink-section-40a84e a{
    color: #718096;
    text-decoration: none;
}

/* ==================== 页脚 ==================== */
.footer-539b39 {
    background: var(--secondary-dark);
    color: var(--text-white);
    padding: 80px 0 30px;
}

.footer-content-6d20c6 {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand-2063ad .logo-bb093a {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.footer-desc-bd11d7 {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-links-6f04a4 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column-8c7420 h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--primary-color);
}

.footer-column-8c7420 ul li {
    margin-bottom: 12px;
}

.footer-column-8c7420 ul a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
}

.footer-column-8c7420 ul a:hover {
    color: var(--primary-color);
    padding-left: 8px;
}

.footer-bottom-670c82 {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom-670c82 p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 8px;
}

/* ==================== 返回顶部按钮 ==================== */
.back-to-top-20983b {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-white);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 18px;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 999;
}

.back-to-top-20983b.visible-4af435 {
    opacity: 1;
    visibility: visible;
}

.back-to-top-20983b:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .services-grid-bb9179,
    .advantages-grid-5c19b0,
    .products-grid-205697,
    .news-grid-b832b8 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-wrapper-d6315c,
    .contact-wrapper-8d2084 {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image-277827 {
        order: -1;
    }
    
    .footer-content-6d20c6 {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links-9525ae {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--bg-light);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        box-shadow: var(--shadow-md);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
    }
    
    .nav-links-9525ae.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-links-9525ae a {
        padding: 16px;
        border-bottom: 1px solid var(--border-light);
    }
    
    .hamburger-47d6ac {
        display: block;
    }
    
    .hero-b3dc16 {
        min-height: 600px;
    }
    
    .hero-title-87cbc6 {
        font-size: 36px;
    }
    
    .hero-subtitle-c98ffa {
        font-size: 16px;
    }
    
    .section-title-87f6ee {
        font-size: 32px;
    }
    
    .services-grid-bb9179,
    .advantages-grid-5c19b0,
    .products-grid-205697,
    .news-grid-b832b8,
    .reviews-grid-abc96c {
        grid-template-columns: 1fr;
    }
    
    .about-stats-01967d {
        grid-template-columns: 1fr;
    }
    
    .form-row-e050b3 {
        grid-template-columns: 1fr;
    }
    
    .footer-links-6f04a4 {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .stat-item-93dc95 {
        padding: 16px;
    }
    
    .stat-number-ed5530 {
        font-size: 28px;
    }
    
    .product-image-efe485 {
        height: 200px;
    }
}

@media (max-width: 480px) {
    .container-9b88a0 {
        padding: 0 15px;
    }
    
    .hero-title-87cbc6 {
        font-size: 28px;
    }
    
    .hero-buttons-55978a {
        flex-direction: column;
        gap: 12px;
    }
    
    .btn-34454c {
        padding: 12px 24px;
        font-size: 14px;
    }
    
    .section-title-87f6ee {
        font-size: 26px;
    }
    
    .service-card-8f2334,
    .advantage-card-e374c8 {
        padding: 30px 20px;
    }
    
    .contact-form-wrapper-c50190 {
        padding: 24px;
    }
    
    .review-card-3592af {
        padding: 24px;
    }
}