/* ==================== 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-2018b8 {
    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-bdba9b {
    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-2976f2 {
    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-2976f2:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(201, 169, 98, 0.5);
}

.btn-secondary-7b1529 {
    background: transparent;
    color: var(--text-white);
    border: 2px solid var(--text-white);
}

.btn-secondary-7b1529:hover {
    background: var(--text-white);
    color: var(--primary-color);
}

.btn-block-cd6145 {
    width: 100%;
}

/* ==================== 顶部导航 ==================== */
.header-09b196 {
    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-09b196.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar-bb22de {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-5536ea {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-5536ea i {
    font-size: 32px;
}

.nav-links-425ee6 {
    display: flex;
    gap: 8px;
}

.nav-links-425ee6 a {
    padding: 10px 16px;
    color: var(--text-primary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.nav-links-425ee6 a:hover {
    color: var(--primary-color);
    background: rgba(201, 169, 98, 0.1);
}

.hamburger-46f939 {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-primary);
}

/* ==================== 横幅区域 ==================== */
.hero-4c0f7f {
    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-4c0f7f::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-795e7e {
    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-9cd4b0 {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--text-white);
    max-width: 800px;
    padding: 0 20px;
}

.hero-title-cd3d72 {
    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-9477a8 {
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-buttons-4471ee {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== 章节头部 ==================== */
.section-header-986266 {
    text-align: center;
    margin-bottom: 60px;
}

.section-title-4fc723 {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-title-4fc723::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-b5b048 {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 20px auto 0;
    line-height: 1.7;
}

/* ==================== 服务内容 ==================== */
.services-b50416 {
    padding: 120px 0;
    background: var(--bg-light);
}

.services-grid-be0398 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card-70d114 {
    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-70d114:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-icon-b9c845 {
    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-70d114:hover .service-icon-b9c845 {
    transform: scale(1.1) rotate(5deg);
}

.service-icon-b9c845 i {
    font-size: 32px;
    color: var(--text-white);
}

.service-title-613f6c {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.service-content-593e79 {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==================== 服务优势 ==================== */
.advantages-406442 {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-color) 100%);
}

.advantages-grid-d89d01 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage-card-864d28 {
    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-864d28::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-864d28:hover::before {
    transform: scaleX(1);
}

.advantage-card-864d28:hover {
    box-shadow: var(--shadow-lg);
}

.advantage-number-8901bb {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.3;
    position: absolute;
    top: 20px;
    right: 20px;
}

.advantage-title-32c8b3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.advantage-content-783cbe {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* ==================== 产品案例 ==================== */
.products-dda2af {
    padding: 120px 0;
    background: var(--secondary-color);
}

.products-dda2af .section-title-4fc723 {
    color: var(--text-white);
}

.products-dda2af .section-subtitle-b5b048 {
    color: rgba(255, 255, 255, 0.7);
}

.products-grid-be967b {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-card-413768 {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-light);
    transition: var(--transition-normal);
}

.product-card-413768:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.product-image-549b76 {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.product-image-549b76 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.product-card-413768:hover .product-image-549b76 img {
    transform: scale(1.1);
}

.product-overlay-e560b1 {
    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-413768:hover .product-overlay-e560b1 {
    opacity: 1;
}

.product-overlay-e560b1 i {
    font-size: 32px;
    color: var(--primary-color);
}

.product-info-de3f82 {
    padding: 24px;
    background: var(--bg-light);
}

.product-title-aa8d39 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.product-desc-04e7a7 {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== 关于我们 ==================== */
.about-d3208f {
    padding: 120px 0;
    background: var(--bg-light);
}

.about-wrapper-6e46dc {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image-47dde2 {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image-47dde2 img {
    width: 100%;
    height: auto;
}

.about-content-418048 {
    padding: 20px;
}

.about-header-831dc4 {
    text-align: left;
    margin-bottom: 30px;
}

.about-header-831dc4 .section-title-4fc723::after {
    left: 0;
    transform: none;
}

.about-intro-928f27 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-text-d857bc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 40px;
}

.about-stats-545f9f {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.stat-item-6ef4bc {
    text-align: center;
    padding: 24px;
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.stat-item-6ef4bc:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-number-10ddad {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-label-00dbeb {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== 新闻资讯 ==================== */
.news-5bfe42 {
    padding: 120px 0;
    background: var(--bg-dark);
}

.news-grid-183693 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card-e76fb6 {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
}

.news-card-e76fb6:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.news-image-b3694d {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-image-b3694d img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.news-card-e76fb6:hover .news-image-b3694d img {
    transform: scale(1.1);
}

.news-date-6310ec {
    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-4de7ee {
    display: block;
    font-size: 20px;
    font-weight: 700;
}

.date-month-0c6cb2 {
    font-size: 12px;
    opacity: 0.9;
}

.news-content-27606c {
    padding: 24px;
}

.news-title-618799 {
    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-0a4756 {
    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-b8e931 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-light);
}

.news-time-0f3b0c {
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-readmore-f1de74 {
    color: var(--primary-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
}

.news-readmore-f1de74:hover {
    gap: 10px;
}

/* ==================== 常见问题 ==================== */
.faq-010ff3 {
    padding: 120px 0;
    background: var(--bg-light);
}

.faq-list-0054ee {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item-7142b9 {
    margin-bottom: 16px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: var(--transition-normal);
}

.faq-item-7142b9:hover {
    border-color: var(--primary-color);
}

.faq-question-beb8a1 {
    display: flex;
    align-items: center;
    padding: 24px;
    background: var(--bg-color);
    cursor: pointer;
    transition: var(--transition-fast);
}

.faq-question-beb8a1:hover {
    background: rgba(201, 169, 98, 0.05);
}

.faq-icon-686a13 {
    color: var(--primary-color);
    font-size: 20px;
    margin-right: 16px;
}

.faq-text-304a8a {
    flex: 1;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
}

.faq-toggle-60ec15 {
    color: var(--primary-color);
    font-size: 16px;
    transition: var(--transition-fast);
}

.faq-item-7142b9.active .faq-toggle-60ec15 {
    transform: rotate(180deg);
}

.faq-answer-36380e {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item-7142b9.active .faq-answer-36380e {
    max-height: 300px;
}

.faq-answer-36380e p {
    padding: 24px;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    background: var(--bg-light);
}

/* ==================== 客户评价 ==================== */
.reviews-a580c2 {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
}

.reviews-a580c2 .section-title-4fc723 {
    color: var(--text-white);
}

.reviews-a580c2 .section-subtitle-b5b048 {
    color: rgba(255, 255, 255, 0.7);
}

.reviews-grid-434f2a {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.review-card-3cab4f {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition-normal);
}

.review-card-3cab4f:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.review-header-c54273 {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 20px;
}

.reviewer-info-2079f6 {
    display: flex;
    align-items: center;
    gap: 16px;
}

.reviewer-avatar-db9335 {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

.reviewer-details-ff24be {
    flex: 1;
}

.reviewer-name-9d6f6b {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.reviewer-company-9d53bd {
    font-size: 14px;
    color: var(--text-secondary);
}

.review-rating-2a7f77 {
    color: var(--primary-color);
    font-size: 14px;
}

.review-content-40450f {
    margin-bottom: 20px;
}

.review-content-40450f p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    font-style: italic;
}

.review-footer-cc5507 {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    font-size: 13px;
    color: var(--text-light);
}

.review-date-9ca159 {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ==================== 联系我们 ==================== */
.contact-f93138 {
    padding: 120px 0;
    background: var(--bg-color);
}

.contact-wrapper-422171 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info-2f2657 {
    padding: 20px;
}

.contact-subtitle-ab4e1b {
    font-size: 18px;
    color: var(--text-secondary);
    margin-top: 16px;
}

.contact-details-f7dda7 {
    margin: 40px 0;
}

.contact-item-95fe5e {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-light);
}

.contact-icon-4b41f4 {
    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-4b41f4 i {
    font-size: 20px;
    color: var(--text-white);
}

.contact-text-015e76 h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.contact-text-015e76 p {
    font-size: 15px;
    color: var(--text-secondary);
}

.social-links-99e965 {
    display: flex;
    gap: 16px;
    margin-top: 30px;
}

.social-link-70f5d1 {
    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-70f5d1:hover {
    background: var(--primary-color);
    color: var(--text-white);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.contact-form-wrapper-1956eb {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-title-cfa480 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 30px;
    text-align: center;
}

.form-row-1aa8ed {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group-569cfd {
    margin-bottom: 20px;
}

.form-group-569cfd label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group-569cfd input,
.form-group-569cfd select,
.form-group-569cfd 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-569cfd input:focus,
.form-group-569cfd select:focus,
.form-group-569cfd textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(201, 169, 98, 0.1);
}

.form-group-569cfd textarea {
    resize: vertical;
    min-height: 120px;
}

.flink-section-7d70eb {
    background: white;
    color: #2d3748;
    padding: 30px 0;
}
.flink-header-82b7ec{
    font-size: 20px;
    font-weight: 600;
    padding-bottom: 10px;
}
.flink-section-7d70eb li{
    list-style: none;
    display: inline;
    padding-right: 20px;
}
.flink-section-7d70eb a{
    color: #718096;
    text-decoration: none;
}

/* ==================== 页脚 ==================== */
.footer-fc407b {
    background: var(--secondary-dark);
    color: var(--text-white);
    padding: 80px 0 30px;
}

.footer-content-54f0ec {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand-972b18 .logo-5536ea {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.footer-desc-fce068 {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-links-934705 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column-1e6785 h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--primary-color);
}

.footer-column-1e6785 ul li {
    margin-bottom: 12px;
}

.footer-column-1e6785 ul a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
}

.footer-column-1e6785 ul a:hover {
    color: var(--primary-color);
    padding-left: 8px;
}

.footer-bottom-f26a71 {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom-f26a71 p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 8px;
}

/* ==================== 返回顶部按钮 ==================== */
.back-to-top-19d73b {
    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-19d73b.visible-660d29 {
    opacity: 1;
    visibility: visible;
}

.back-to-top-19d73b:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .services-grid-be0398,
    .advantages-grid-d89d01,
    .products-grid-be967b,
    .news-grid-183693 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-wrapper-6e46dc,
    .contact-wrapper-422171 {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image-47dde2 {
        order: -1;
    }
    
    .footer-content-54f0ec {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links-425ee6 {
        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-425ee6.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-links-425ee6 a {
        padding: 16px;
        border-bottom: 1px solid var(--border-light);
    }
    
    .hamburger-46f939 {
        display: block;
    }
    
    .hero-4c0f7f {
        min-height: 600px;
    }
    
    .hero-title-cd3d72 {
        font-size: 36px;
    }
    
    .hero-subtitle-9477a8 {
        font-size: 16px;
    }
    
    .section-title-4fc723 {
        font-size: 32px;
    }
    
    .services-grid-be0398,
    .advantages-grid-d89d01,
    .products-grid-be967b,
    .news-grid-183693,
    .reviews-grid-434f2a {
        grid-template-columns: 1fr;
    }
    
    .about-stats-545f9f {
        grid-template-columns: 1fr;
    }
    
    .form-row-1aa8ed {
        grid-template-columns: 1fr;
    }
    
    .footer-links-934705 {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .stat-item-6ef4bc {
        padding: 16px;
    }
    
    .stat-number-10ddad {
        font-size: 28px;
    }
    
    .product-image-549b76 {
        height: 200px;
    }
}

@media (max-width: 480px) {
    .container-2018b8 {
        padding: 0 15px;
    }
    
    .hero-title-cd3d72 {
        font-size: 28px;
    }
    
    .hero-buttons-4471ee {
        flex-direction: column;
        gap: 12px;
    }
    
    .btn-bdba9b {
        padding: 12px 24px;
        font-size: 14px;
    }
    
    .section-title-4fc723 {
        font-size: 26px;
    }
    
    .service-card-70d114,
    .advantage-card-864d28 {
        padding: 30px 20px;
    }
    
    .contact-form-wrapper-1956eb {
        padding: 24px;
    }
    
    .review-card-3cab4f {
        padding: 24px;
    }
}