/* ============================================
   安邦服饰企业官网样式表 - 优化版
   ============================================ */

/* CSS 变量 */
:root {
    --primary-color: #1a5fb4;
    --primary-dark: #144a8c;
    --secondary-color: #f5f5f5;
    --accent-color: #c9a227;
    --text-color: #333;
    --text-light: #666;
    --text-muted: #999;
    --white: #fff;
    --black: #000;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white);
}

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

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

/* ============================================
   头部导航
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
    height: 80px;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo a {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 2px;
}

.logo-sub {
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-size: 15px;
    color: var(--text-color);
    padding: 10px 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 600;
}

.header-contact i {
    font-size: 18px;
}

/* ============================================
   Hero Banner
   ============================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26,95,180,0.85) 0%, rgba(20,74,140,0.9) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
    padding: 20px;
    max-width: 900px;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
    letter-spacing: 4px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 24px;
    margin-bottom: 10px;
    opacity: 0.95;
}

.hero-desc {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 42px;
    font-weight: 700;
    color: var(--accent-color);
}

.stat-label {
    font-size: 14px;
    opacity: 0.8;
}

.hero-btn {
    display: inline-block;
    padding: 15px 40px;
    background: var(--accent-color);
    color: var(--white);
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
}

.hero-btn:hover {
    background: #b8911f;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

/* ============================================
   通用区块
   ============================================ */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 10px;
}

.section-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    letter-spacing: 3px;
}

.section-footer {
    text-align: center;
    margin-top: 40px;
}

.bg-light {
    background: var(--secondary-color);
}

.bg-primary {
    background: var(--primary-color);
}

/* ============================================
   关于我们预览
   ============================================ */
.about-preview {
    background: var(--secondary-color);
}

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

.about-content p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: 20px;
}

.about-image {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

/* ============================================
   产品中心 - 修复布局
   ============================================ */
.products-section {
    background: var(--white);
}

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

.product-card {
    display: flex;
    flex-direction: column;
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    text-decoration: none;
    border: 1px solid rgba(0,0,0,0.05);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
    border-color: #3b82f6;
}

.product-image {
    position: relative;
    width: 100%;
    padding-top: 75%;
    overflow: hidden;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.product-card:hover .product-image img {
    transform: scale(1.08);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.85) 0%, rgba(59, 130, 246, 0.85) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-category {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    padding: 12px 24px;
    background: rgba(255,255,255,0.15);
    border-radius: 30px;
    backdrop-filter: blur(4px);
    transform: translateY(10px);
    opacity: 0;
    transition: all 0.3s ease 0.1s;
}

.product-card:hover .product-category {
    transform: translateY(0);
    opacity: 1;
}

.product-info {
    padding: 20px;
    text-align: center;
    background: #fff;
}

.product-name {
    font-size: 18px;
    font-weight: 600;
    color: #1e293b;
    margin: 0 0 8px 0;
    transition: color 0.3s ease;
}

.product-card:hover .product-name {
    color: #3b82f6;
}

.product-desc {
    font-size: 13px;
    color: #64748b;
    display: block;
}

/* 产品筛选 */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    padding: 20px 25px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 16px;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.03);
}

.filter-btn {
    padding: 10px 24px;
    border: 2px solid #e2e8f0;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    color: #475569;
    background: white;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
}

.filter-btn:hover {
    border-color: #3b82f6;
    color: #3b82f6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.filter-btn.active {
    border-color: #3b82f6;
    color: white;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
}

.filter-btn.active:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

/* ============================================
   核心优势
   ============================================ */
.advantages-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.advantages-section .section-title,
.advantages-section .section-subtitle {
    color: var(--white);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.advantage-card {
    text-align: center;
    padding: 30px 20px;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    transition: var(--transition);
}

.advantage-card:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-5px);
}

.advantage-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.advantage-icon i {
    font-size: 28px;
    color: var(--white);
}

.advantage-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.advantage-desc {
    font-size: 14px;
    opacity: 0.9;
    line-height: 1.6;
}

/* ============================================
   资质荣誉
   ============================================ */
.honours-section {
    background: var(--secondary-color);
}

.honours-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.honour-card {
    background: var(--white);
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.honour-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.honour-image {
    width: 100%;
    padding-top: 75%;
    position: relative;
    margin-bottom: 12px;
    border-radius: 4px;
    overflow: hidden;
    background: #f5f5f5;
}

.honour-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.honour-name {
    font-size: 13px;
    color: var(--text-color);
    line-height: 1.4;
}

/* ============================================
   新闻动态
   ============================================ */
.news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.news-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.news-image {
    width: 100%;
    padding-top: 60%;
    position: relative;
    overflow: hidden;
    background: #f5f5f5;
}

.news-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.news-card:hover .news-image img {
    transform: scale(1.05);
}

.news-content {
    padding: 20px;
}

.news-date {
    font-size: 12px;
    color: var(--text-muted);
}

.news-title {
    font-size: 16px;
    font-weight: 600;
    margin: 10px 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 44px;
}

.news-summary {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 10px;
}

.news-link {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 500;
}

.news-link:hover {
    color: var(--primary-dark);
}

/* 新闻列表页 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.news-item {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 25px;
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.news-item .news-image {
    padding-top: 0;
    height: 180px;
}

.news-item .news-image img {
    position: relative;
}

.news-item .news-content {
    padding: 20px 20px 20px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-item .news-title {
    font-size: 18px;
    min-height: auto;
}

/* ============================================
   分页组件 - 优化版
   ============================================ */
.pagination-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 50px;
    gap: 15px;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.pagination .page-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    font-size: 14px;
    background: var(--white);
    transition: var(--transition);
}

.pagination .page-btn:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.pagination .page-btn i {
    font-size: 12px;
}

.pagination .page-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    font-size: 14px;
    background: var(--white);
    transition: var(--transition);
}

.pagination .page-num:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.pagination .page-num.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    font-weight: 600;
}

.pagination .page-dots {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    color: var(--text-muted);
}

.pagination-info {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}

/* 旧版分页兼容 */
.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    font-size: 14px;
    transition: var(--transition);
    background: var(--white);
}

.pagination a:hover {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.pagination .active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.pagination .disabled {
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.6;
}

/* ============================================
   联系我们
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 5px;
}

.contact-item p {
    font-size: 14px;
    color: var(--text-light);
    margin: 0;
}

.contact-form-wrapper {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

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

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

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    transition: var(--transition);
    font-family: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26,95,180,0.1);
}

/* ============================================
   页脚
   ============================================ */
.footer {
    background: #1a1a1a;
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo .logo-text {
    color: var(--white);
    font-size: 28px;
}

.footer-desc {
    margin-top: 15px;
    font-size: 14px;
    color: #999;
    line-height: 1.6;
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    font-size: 14px;
    color: #999;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--white);
    padding-left: 5px;
}

.contact-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #999;
    font-size: 14px;
}

.contact-list li i {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: #666;
    margin-bottom: 5px;
}

/* ============================================
   页面Banner
   ============================================ */
.page-banner {
    padding: 120px 0 60px;
    text-align: center;
    color: var(--white);
}

.page-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
}

.page-subtitle {
    font-size: 14px;
    letter-spacing: 3px;
    opacity: 0.8;
}

/* 面包屑 */
.breadcrumb {
    padding: 15px 0;
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-muted);
}

.breadcrumb a {
    color: var(--text-color);
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

.breadcrumb span {
    margin: 0 8px;
}

/* ============================================
   表单样式
   ============================================ */
.form-card {
    background: var(--white);
    border-radius: 8px;
    padding: 30px;
    box-shadow: var(--shadow);
}

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

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

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    transition: var(--transition);
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26,95,180,0.1);
}

/* ============================================
   状态标签
   ============================================ */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.success {
    background: #d4edda;
    color: #155724;
}

.status-badge.danger {
    background: #f8d7da;
    color: #721c24;
}

/* ============================================
   表格样式
   ============================================ */
.data-table {
    width: 100%;
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: var(--text-color);
    font-size: 13px;
}

.data-table tr:hover {
    background: #f8f9fa;
}

/* ============================================
   卡片组件
   ============================================ */
.card {
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.card-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
}

.card-body {
    padding: 20px;
}

/* ============================================
   提示消息
   ============================================ */
.alert {
    padding: 15px 20px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* ============================================
   操作按钮
   ============================================ */
.action-btn {
    display: inline-block;
    padding: 6px 12px;
    font-size: 13px;
    border-radius: 4px;
    margin-right: 5px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    background: none;
}

.action-btn.edit {
    background: #e3f2fd;
    color: #1565c0;
}

.action-btn.edit:hover {
    background: #bbdefb;
}

.action-btn.delete {
    background: #ffebee;
    color: #c62828;
}

.action-btn.delete:hover {
    background: #ffcdd2;
}

/* ============================================
   空状态
   ============================================ */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 15px;
    opacity: 0.5;
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
    .products-grid,
    .advantages-grid,
    .honours-grid,
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-stats {
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .header {
        height: auto;
        min-height: 60px;
    }
    
    .header .container {
        flex-wrap: wrap;
        height: auto;
        padding: 12px 20px;
    }
    
    .logo {
        z-index: 10;
    }
    
    .logo-text {
        font-size: 20px;
    }
    
    .logo-sub {
        font-size: 9px;
    }
    
    .nav {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
        margin-top: 12px;
        padding-top: 12px;
        border-top: 1px solid #e5e7eb;
    }
    
    .nav.active {
        display: flex;
    }
    
    .nav-link {
        padding: 12px 0;
        border-bottom: 1px solid #f1f5f9;
        font-size: 15px;
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .header-contact {
        display: none;
    }
    
    .hero {
        height: auto;
        min-height: 100vh;
        padding: 120px 0 60px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-stats {
        gap: 20px;
    }
    
    .stat-number {
        font-size: 32px;
    }
    
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .contact-info {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 15px;
    }
    
    .contact-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 10px;
        padding: 15px;
        background: #f8fafc;
        border-radius: 8px;
    }
    
    .contact-form-wrapper {
        padding: 20px 15px;
        width: 100%;
        box-sizing: border-box;
    }
    
    .contact-form .form-group {
        margin-bottom: 12px;
    }
    
    .contact-form .form-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .contact-form input,
    .contact-form textarea {
        padding: 10px 12px;
        font-size: 14px;
        width: 100%;
        box-sizing: border-box;
        max-width: 100%;
    }
    
    .products-grid,
    .advantages-grid,
    .honours-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .news-item {
        grid-template-columns: 1fr;
    }
    
    .news-item .news-image {
        height: 200px;
    }
    
    .news-item .news-content {
        padding: 20px;
    }
    
    .contact-form .form-row {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .page-title {
        font-size: 28px;
    }
}

/* ============================================
   移动端菜单按钮
   ============================================ */
.mobile-menu-btn {
    display: none;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--text-color);
    margin: 6px 0;
    transition: var(--transition);
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
}

/* ============================================
   产品详情页
   ============================================ */
.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.product-gallery .main-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.product-gallery .main-image img {
    width: 100%;
}

.product-info .product-title {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 10px;
}

.product-category-label {
    display: inline-block;
    padding: 6px 16px;
    background: #e3f2fd;
    color: #1565c0;
    border-radius: 20px;
    font-size: 14px;
    margin-bottom: 20px;
}

.product-description,
.product-features {
    margin-bottom: 25px;
}

.product-description h3,
.product-features h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--text-color);
}

.product-description p,
.features-content {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 15px;
}

.product-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

@media (max-width: 768px) {
    .product-detail {
        grid-template-columns: 1fr;
    }
    
    .product-actions {
        flex-direction: column;
    }
}

/* ============================================
   文章详情页
   ============================================ */
.article-detail {
    max-width: 900px;
    margin: 0 auto;
}

.article-header {
    text-align: center;
    margin-bottom: 30px;
}

.article-title {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 15px;
}

.article-meta {
    color: var(--text-muted);
    font-size: 14px;
}

.article-meta span {
    margin: 0 15px;
}

.article-cover {
    margin-bottom: 30px;
    border-radius: 8px;
    overflow: hidden;
}

.article-cover img {
    width: 100%;
}

.article-body {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-color);
}

.article-body p {
    margin-bottom: 15px;
}

.article-body img {
    max-width: 100%;
    border-radius: 4px;
    margin: 20px 0;
}

.article-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    padding: 20px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.article-nav a {
    flex: 1;
    padding: 15px;
    border-radius: 4px;
    transition: var(--transition);
}

.article-nav a:hover {
    background: #f5f5f5;
}

.article-nav .nav-next {
    text-align: right;
}

.article-nav .nav-label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.article-nav .nav-title {
    color: var(--text-color);
}

.article-nav .disabled {
    color: var(--text-muted);
    padding: 15px;
}

.article-footer {
    text-align: center;
    margin-top: 30px;
}

/* ============================================
   时间线
   ============================================ */
.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item {
    position: relative;
    padding-bottom: 30px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -34px;
    top: 5px;
    width: 10px;
    height: 10px;
    background: var(--primary-color);
    border-radius: 50%;
}

.timeline-year {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.timeline-content h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 5px;
}

.timeline-content p {
    font-size: 14px;
    color: var(--text-light);
}

/* ============================================
   价值观卡片
   ============================================ */
.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.value-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.value-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.value-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-color);
}

.value-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

@media (max-width: 768px) {
    .values-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   企业愿景
   ============================================ */
.vision-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.vision-content h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
}

.vision-content .lead {
    font-size: 22px;
    margin-bottom: 15px;
}

.vision-content p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 10px;
}

/* ============================================
   荣誉分类
   ============================================ */
.honour-category {
    margin-bottom: 50px;
}

.category-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 25px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
    color: var(--text-color);
}

.honour-card.text-only {
    display: flex;
    align-items: center;
    gap: 15px;
    text-align: left;
    padding: 20px;
}

.honour-card.text-only .honour-icon {
    width: 50px;
    height: 50px;
    background: #e3f2fd;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.honour-card.text-only .honour-icon i {
    color: var(--primary-color);
    font-size: 20px;
}

.honour-card.text-only .honour-name {
    margin: 0;
    text-align: left;
}

/* ============================================
   懒加载动画
   ============================================ */
.animate-in {
    animation: fadeInUp 0.5s ease forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   后台登录页面
   ============================================ */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a5fb4 0%, #144a8c 100%);
    padding: 20px;
}

.login-box {
    width: 100%;
    max-width: 400px;
    background: var(--white);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.login-title {
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 30px;
    line-height: 1.4;
}

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

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

.login-box .form-control {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 15px;
    transition: var(--transition);
    box-sizing: border-box;
}

.login-box .form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26,95,180,0.15);
}

.login-box .btn-block {
    width: 100%;
    padding: 14px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 6px;
    margin-top: 10px;
}

.login-box .alert {
    margin-bottom: 20px;
    padding: 12px 15px;
    border-radius: 6px;
    font-size: 14px;
}

/* ============================================
   后台管理布局
   ============================================ */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 250px;
    background: #1a1a2e;
    color: var(--white);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
}

.admin-sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.admin-sidebar-header h2 {
    font-size: 18px;
    margin: 0;
}

.admin-sidebar-header span {
    font-size: 12px;
    color: rgba(255,255,255,0.6);
}

.admin-nav {
    padding: 15px 0;
}

.admin-nav-item {
    display: block;
    padding: 12px 20px;
    color: rgba(255,255,255,0.8);
    font-size: 14px;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.admin-nav-item:hover,
.admin-nav-item.active {
    background: rgba(255,255,255,0.1);
    color: var(--white);
    border-left-color: var(--accent-color);
}

.admin-nav-item i {
    width: 20px;
    margin-right: 10px;
}

.admin-content {
    flex: 1;
    margin-left: 250px;
    background: #f5f5f5;
}

.admin-header {
    background: var(--white);
    padding: 15px 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.admin-header h1 {
    font-size: 20px;
    margin: 0;
}

.admin-user {
    display: flex;
    align-items: center;
    gap: 15px;
}

.admin-user span {
    font-size: 14px;
    color: var(--text-light);
}

.admin-main {
    padding: 25px;
}

/* 统计卡片 */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 25px;
}

.stat-card {
    background: var(--white);
    border-radius: 8px;
    padding: 25px;
    box-shadow: var(--shadow);
}

.stat-card h3 {
    font-size: 14px;
    color: var(--text-light);
    margin: 0 0 10px;
}

.stat-card .number {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-card .number.warning {
    color: #f39c12;
}

@media (max-width: 1024px) {
    .stat-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .admin-sidebar {
        transform: translateX(-100%);
        z-index: 1000;
    }
    
    .admin-sidebar.show {
        transform: translateX(0);
    }
    
    .admin-content {
        margin-left: 0;
    }
    
    .stat-cards {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   新增样式 - 网站优化
   ============================================ */

/* 顶部信息栏 */
.top-bar {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: white;
    padding: 10px 0;
    font-size: 14px;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.top-info {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
}

.top-info span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.top-info i {
    font-size: 16px;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.header-phone {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 25px;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: white;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s;
}

.header-phone:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.3);
}

/* Mobile Menu Toggle - 默认隐藏 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    width: 36px;
    height: 36px;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #1e3a8a;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* 悬浮工具栏 */
.floating-tools {
    position: fixed;
    right: 20px;
    bottom: 100px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tool-item {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    text-decoration: none;
    border: none;
}

.tool-item:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(30, 58, 138, 0.3);
}

.tool-item.back-to-top {
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.tool-item.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

/* Footer Bottom Enhancement */
.footer-bottom {
    background: #0f172a;
    padding: 25px 0;
    margin-top: 40px;
}

.footer-bottom-content {
    text-align: center;
    color: #94a3b8;
    font-size: 14px;
}

.footer-compliance {
    margin-top: 10px;
}

.footer-compliance a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-compliance a:hover {
    color: #3b82f6;
}

.footer-compliance span {
    margin: 0 10px;
    color: #475569;
}

.footer-certifications {
    margin-top: 15px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Page Banner */
.page-banner {
    position: relative;
    overflow: hidden;
}

.page-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.page-banner .container {
    position: relative;
    z-index: 1;
}

/* Case Card Hover */
.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Process Step Animation */
.process-step {
    transition: transform 0.3s;
}

.process-step:hover {
    transform: translateY(-10px);
}

.process-step:hover .step-icon {
    transform: scale(1.1);
}

.step-icon {
    transition: transform 0.3s;
}

/* Advantage Card Hover */
.advantage-card {
    transition: all 0.3s;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1);
}

.advantage-icon {
    transition: transform 0.3s;
}

/* FAQ Item */
.faq-item {
    transition: all 0.3s;
}

.faq-item:hover {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

/* Sitemap Section */
.sitemap-section {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.sitemap-section ul li {
    padding: 8px 0;
    border-bottom: 1px solid #f1f5f9;
}

.sitemap-section ul li:last-child {
    border-bottom: none;
}

.sitemap-section ul li a:hover {
    color: #1e3a8a;
    padding-left: 5px;
}

/* Form Styles */
input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s;
    font-family: inherit;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

button[type="submit"] {
    transition: all 0.3s;
}

button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 58, 138, 0.3);
}

/* ============================================
   响应式设计 - 移动端优化
   ============================================ */

@media (max-width: 1024px) {
    .container {
        max-width: 960px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    /* 防止移动端溢出 */
    html, body {
        overflow-x: hidden;
        width: 100%;
    }
    
    .container {
        padding: 0 15px;
        max-width: 100%;
    }
    
    /* 顶部信息栏 */
    .top-bar {
        display: none;
    }
    
    /* Header */
    .header {
        padding: 15px 0;
    }
    
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        padding: 20px;
    }
    
    .nav.active {
        display: flex;
    }
    
    .nav-link {
        padding: 12px 0;
        border-bottom: 1px solid #f1f5f9;
        width: 100%;
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .header-actions {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex !important;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    /* Hero Section */
    .hero-title {
        font-size: 28px !important;
    }
    
    .hero-subtitle {
        font-size: 16px !important;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr) !important;
    }
    
    /* 悬浮工具栏 */
    .floating-tools {
        right: 10px;
        bottom: 80px;
    }
    
    .tool-item {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom-content {
        font-size: 12px;
    }
    
    /* Page Banner */
    .page-banner {
        padding: 50px 0 !important;
    }
    
    .page-banner h1 {
        font-size: 28px !important;
    }
    
    /* Cases Grid */
    .cases-grid {
        grid-template-columns: 1fr !important;
    }
    
    /* Case Detail */
    .case-section h2 {
        font-size: 20px !important;
    }
    
    /* Filter Bar */
    .filter-bar {
        flex-direction: column;
        align-items: flex-start !important;
    }
    
    .filter-tag {
        font-size: 12px;
        padding: 6px 15px;
    }
    
    /* Process Steps */
    .process-steps {
        grid-template-columns: 1fr !important;
    }
    
    /* Advantages */
    .advantages-grid {
        grid-template-columns: 1fr !important;
    }
    
    /* Form */
    form {
        padding: 30px 20px !important;
    }
    
    form > div {
        grid-template-columns: 1fr !important;
    }
    
    /* Sitemap */
    .sitemap-section {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 24p