/* ==================== 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-f66840 {
    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-21dba4 {
    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-ef86cf {
    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-ef86cf:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(201, 169, 98, 0.5);
}

.btn-secondary-18de46 {
    background: transparent;
    color: var(--text-white);
    border: 2px solid var(--text-white);
}

.btn-secondary-18de46:hover {
    background: var(--text-white);
    color: var(--primary-color);
}

.btn-block-b18ff7 {
    width: 100%;
}

/* ==================== 顶部导航 ==================== */
.header-fa037b {
    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-fa037b.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar-137644 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo-2f0764 {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-2f0764 i {
    font-size: 32px;
}

.nav-links-a6e572 {
    display: flex;
    gap: 8px;
}

.nav-links-a6e572 a {
    padding: 10px 16px;
    color: var(--text-primary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.nav-links-a6e572 a:hover {
    color: var(--primary-color);
    background: rgba(201, 169, 98, 0.1);
}

.hamburger-766fa2 {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-primary);
}

/* ==================== 横幅区域 ==================== */
.hero-156400 {
    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-156400::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-e6f326 {
    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-754716 {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--text-white);
    max-width: 800px;
    padding: 0 20px;
}

.hero-title-c3b599 {
    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-3cfdc3 {
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-buttons-2243a3 {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== 章节头部 ==================== */
.section-header-b66007 {
    text-align: center;
    margin-bottom: 60px;
}

.section-title-3c914a {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-title-3c914a::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-92863e {
    font-size: 17px;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 20px auto 0;
    line-height: 1.7;
}

/* ==================== 服务内容 ==================== */
.services-70306c {
    padding: 120px 0;
    background: var(--bg-light);
}

.services-grid-29700f {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card-29ed76 {
    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-29ed76:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.service-icon-11f5f6 {
    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-29ed76:hover .service-icon-11f5f6 {
    transform: scale(1.1) rotate(5deg);
}

.service-icon-11f5f6 i {
    font-size: 32px;
    color: var(--text-white);
}

.service-title-b37b99 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.service-content-14fea8 {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ==================== 服务优势 ==================== */
.advantages-765c3b {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-color) 100%);
}

.advantages-grid-dccee6 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage-card-914911 {
    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-914911::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-914911:hover::before {
    transform: scaleX(1);
}

.advantage-card-914911:hover {
    box-shadow: var(--shadow-lg);
}

.advantage-number-f44fb6 {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.3;
    position: absolute;
    top: 20px;
    right: 20px;
}

.advantage-title-56adfc {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.advantage-content-aa6a36 {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* ==================== 产品案例 ==================== */
.products-25fb2a {
    padding: 120px 0;
    background: var(--secondary-color);
}

.products-25fb2a .section-title-3c914a {
    color: var(--text-white);
}

.products-25fb2a .section-subtitle-92863e {
    color: rgba(255, 255, 255, 0.7);
}

.products-grid-291565 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.product-card-948328 {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-light);
    transition: var(--transition-normal);
}

.product-card-948328:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.product-image-d32166 {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.product-image-d32166 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.product-card-948328:hover .product-image-d32166 img {
    transform: scale(1.1);
}

.product-overlay-67edb7 {
    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-948328:hover .product-overlay-67edb7 {
    opacity: 1;
}

.product-overlay-67edb7 i {
    font-size: 32px;
    color: var(--primary-color);
}

.product-info-a3fa56 {
    padding: 24px;
    background: var(--bg-light);
}

.product-title-c66779 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.product-desc-23d818 {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== 关于我们 ==================== */
.about-edaf87 {
    padding: 120px 0;
    background: var(--bg-light);
}

.about-wrapper-3911bb {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image-6c9827 {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image-6c9827 img {
    width: 100%;
    height: auto;
}

.about-content-992220 {
    padding: 20px;
}

.about-header-c1a235 {
    text-align: left;
    margin-bottom: 30px;
}

.about-header-c1a235 .section-title-3c914a::after {
    left: 0;
    transform: none;
}

.about-intro-93cdb5 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-text-c10bd6 {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 40px;
}

.about-stats-70699b {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.stat-item-b28bca {
    text-align: center;
    padding: 24px;
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.stat-item-b28bca:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-number-a2f7e0 {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-label-6df470 {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== 新闻资讯 ==================== */
.news-5728f8 {
    padding: 120px 0;
    background: var(--bg-dark);
}

.news-grid-201f01 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card-6fdfe0 {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition-normal);
}

.news-card-6fdfe0:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.news-image-eee7ff {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-image-eee7ff img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.news-card-6fdfe0:hover .news-image-eee7ff img {
    transform: scale(1.1);
}

.news-date-6baadd {
    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-0532b4 {
    display: block;
    font-size: 20px;
    font-weight: 700;
}

.date-month-2208b0 {
    font-size: 12px;
    opacity: 0.9;
}

.news-content-685dfc {
    padding: 24px;
}

.news-title-22036b {
    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-84c423 {
    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-0b4c45 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-light);
}

.news-time-1726c1 {
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-readmore-368afb {
    color: var(--primary-color);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
}

.news-readmore-368afb:hover {
    gap: 10px;
}

/* ==================== 常见问题 ==================== */
.faq-2a0d02 {
    padding: 120px 0;
    background: var(--bg-light);
}

.faq-list-abcf1e {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item-312266 {
    margin-bottom: 16px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: var(--transition-normal);
}

.faq-item-312266:hover {
    border-color: var(--primary-color);
}

.faq-question-3ef38b {
    display: flex;
    align-items: center;
    padding: 24px;
    background: var(--bg-color);
    cursor: pointer;
    transition: var(--transition-fast);
}

.faq-question-3ef38b:hover {
    background: rgba(201, 169, 98, 0.05);
}

.faq-icon-6c4c9f {
    color: var(--primary-color);
    font-size: 20px;
    margin-right: 16px;
}

.faq-text-8184d5 {
    flex: 1;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
}

.faq-toggle-49753e {
    color: var(--primary-color);
    font-size: 16px;
    transition: var(--transition-fast);
}

.faq-item-312266.active .faq-toggle-49753e {
    transform: rotate(180deg);
}

.faq-answer-75478b {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item-312266.active .faq-answer-75478b {
    max-height: 300px;
}

.faq-answer-75478b p {
    padding: 24px;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    background: var(--bg-light);
}

/* ==================== 客户评价 ==================== */
.reviews-f5227d {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-dark) 100%);
}

.reviews-f5227d .section-title-3c914a {
    color: var(--text-white);
}

.reviews-f5227d .section-subtitle-92863e {
    color: rgba(255, 255, 255, 0.7);
}

.reviews-grid-bb46fe {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.review-card-fdee32 {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition-normal);
}

.review-card-fdee32:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.review-header-f1f2ee {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 20px;
}

.reviewer-info-b82f5b {
    display: flex;
    align-items: center;
    gap: 16px;
}

.reviewer-avatar-aab290 {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

.reviewer-details-2b473c {
    flex: 1;
}

.reviewer-name-753e6d {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.reviewer-company-e55533 {
    font-size: 14px;
    color: var(--text-secondary);
}

.review-rating-eae167 {
    color: var(--primary-color);
    font-size: 14px;
}

.review-content-de508c {
    margin-bottom: 20px;
}

.review-content-de508c p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    font-style: italic;
}

.review-footer-49001f {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    font-size: 13px;
    color: var(--text-light);
}

.review-date-3f8d44 {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ==================== 联系我们 ==================== */
.contact-45ab20 {
    padding: 120px 0;
    background: var(--bg-color);
}

.contact-wrapper-cc9603 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info-4b64a4 {
    padding: 20px;
}

.contact-subtitle-44cd72 {
    font-size: 18px;
    color: var(--text-secondary);
    margin-top: 16px;
}

.contact-details-821feb {
    margin: 40px 0;
}

.contact-item-0c2c3b {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-light);
}

.contact-icon-0e1a6b {
    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-0e1a6b i {
    font-size: 20px;
    color: var(--text-white);
}

.contact-text-aa8533 h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.contact-text-aa8533 p {
    font-size: 15px;
    color: var(--text-secondary);
}

.social-links-9571d5 {
    display: flex;
    gap: 16px;
    margin-top: 30px;
}

.social-link-9c8f68 {
    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-9c8f68:hover {
    background: var(--primary-color);
    color: var(--text-white);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.contact-form-wrapper-8ccaa8 {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.form-title-607734 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 30px;
    text-align: center;
}

.form-row-9bbce3 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group-be16a1 {
    margin-bottom: 20px;
}

.form-group-be16a1 label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group-be16a1 input,
.form-group-be16a1 select,
.form-group-be16a1 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-be16a1 input:focus,
.form-group-be16a1 select:focus,
.form-group-be16a1 textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(201, 169, 98, 0.1);
}

.form-group-be16a1 textarea {
    resize: vertical;
    min-height: 120px;
}

.flink-section-ab8325 {
    background: white;
    color: #2d3748;
    padding: 30px 0;
}
.flink-header-0fbc6a{
    font-size: 20px;
    font-weight: 600;
    padding-bottom: 10px;
}
.flink-section-ab8325 li{
    list-style: none;
    display: inline;
    padding-right: 20px;
}
.flink-section-ab8325 a{
    color: #718096;
    text-decoration: none;
}

/* ==================== 页脚 ==================== */
.footer-901e17 {
    background: var(--secondary-dark);
    color: var(--text-white);
    padding: 80px 0 30px;
}

.footer-content-0275e0 {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand-9be227 .logo-2f0764 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.footer-desc-04d52e {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-links-4e7984 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column-ca54c2 h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--primary-color);
}

.footer-column-ca54c2 ul li {
    margin-bottom: 12px;
}

.footer-column-ca54c2 ul a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
}

.footer-column-ca54c2 ul a:hover {
    color: var(--primary-color);
    padding-left: 8px;
}

.footer-bottom-bfe34c {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom-bfe34c p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 8px;
}

/* ==================== 返回顶部按钮 ==================== */
.back-to-top-e08355 {
    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-e08355.visible-b21680 {
    opacity: 1;
    visibility: visible;
}

.back-to-top-e08355:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .services-grid-29700f,
    .advantages-grid-dccee6,
    .products-grid-291565,
    .news-grid-201f01 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-wrapper-3911bb,
    .contact-wrapper-cc9603 {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image-6c9827 {
        order: -1;
    }
    
    .footer-content-0275e0 {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links-a6e572 {
        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-a6e572.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-links-a6e572 a {
        padding: 16px;
        border-bottom: 1px solid var(--border-light);
    }
    
    .hamburger-766fa2 {
        display: block;
    }
    
    .hero-156400 {
        min-height: 600px;
    }
    
    .hero-title-c3b599 {
        font-size: 36px;
    }
    
    .hero-subtitle-3cfdc3 {
        font-size: 16px;
    }
    
    .section-title-3c914a {
        font-size: 32px;
    }
    
    .services-grid-29700f,
    .advantages-grid-dccee6,
    .products-grid-291565,
    .news-grid-201f01,
    .reviews-grid-bb46fe {
        grid-template-columns: 1fr;
    }
    
    .about-stats-70699b {
        grid-template-columns: 1fr;
    }
    
    .form-row-9bbce3 {
        grid-template-columns: 1fr;
    }
    
    .footer-links-4e7984 {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .stat-item-b28bca {
        padding: 16px;
    }
    
    .stat-number-a2f7e0 {
        font-size: 28px;
    }
    
    .product-image-d32166 {
        height: 200px;
    }
}

@media (max-width: 480px) {
    .container-f66840 {
        padding: 0 15px;
    }
    
    .hero-title-c3b599 {
        font-size: 28px;
    }
    
    .hero-buttons-2243a3 {
        flex-direction: column;
        gap: 12px;
    }
    
    .btn-21dba4 {
        padding: 12px 24px;
        font-size: 14px;
    }
    
    .section-title-3c914a {
        font-size: 26px;
    }
    
    .service-card-29ed76,
    .advantage-card-914911 {
        padding: 30px 20px;
    }
    
    .contact-form-wrapper-8ccaa8 {
        padding: 24px;
    }
    
    .review-card-fdee32 {
        padding: 24px;
    }
}