/* ============================================
   龙溪企服 LongC-ES 企业官网样式
   商务专业风格 - 深蓝白配色
   ============================================ */

/* 基础重置 */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 深蓝商务 */
    --primary-color: #1e3a5f;
    --primary-dark: #152a45;
    --primary-light: #2a4a73;
    
    /* 辅助色 */
    --secondary-color: #3b82f6;
    --accent-color: #f59e0b;
    
    /* 中性色 */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* 字体 */
    --font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* 间距 */
    --container-width: 1200px;
    --section-padding: 80px;
    
    /* 过渡 */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
}

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

ul {
    list-style: none;
}

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

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

/* 导航栏下拉菜单 - 区域专题 */
.nav-dropdown {
    position: relative;
}

.nav-dropdown .dropdown-toggle {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-dropdown .dropdown-arrow {
    font-size: 10px;
    transition: transform 0.3s ease;
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    display: block;
    width: max-content;
    min-width: 132px;
    max-height: none;
    overflow: visible;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: none;
    z-index: 1001;
    padding: 8px 0;
    margin-top: 0;
    list-style: none;
}

.nav-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid var(--white);
}

.dropdown-menu li {
    display: block;
    margin: 0;
}

.dropdown-menu a {
    display: block;
    min-width: 132px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    transition: all 0.2s ease;
    white-space: nowrap;
}

.dropdown-menu a:hover {
    background: var(--gray-50);
    color: var(--primary-color);
}

.dropdown-menu a::after {
    display: none;
}

/* 移动端下拉菜单 */
@media (max-width: 768px) {
    .nav-dropdown {
        position: static;
    }
    
    .dropdown-menu {
        position: static;
        transform: none;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        margin-top: 0;
        padding: 0 0 0 20px;
        background: transparent;
        display: none;
    }
    
    .nav-dropdown.open .dropdown-menu {
        display: block;
    }
    
    .dropdown-menu::before {
        display: none;
    }
    
    .dropdown-menu a {
        color: var(--gray-500);
        font-size: 13px;
    }
}

/* ============================================
   导航栏
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    z-index: 1000;
    transition: var(--transition);
}

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

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

.logo-cn {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1.2;
}

.logo-en {
    font-size: 12px;
    font-weight: 500;
    color: var(--gray-500);
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    gap: 28px;
    align-items: center;
    flex-wrap: nowrap;
    overflow: visible;
}

.nav-menu a {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    padding: 8px 0;
    position: relative;
}

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

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

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

.nav-dropdown .dropdown-menu a {
    display: block;
    min-width: 132px;
    padding: 10px 20px;
    font-size: 14px;
    color: var(--gray-600);
    white-space: nowrap;
}

.nav-dropdown .dropdown-menu a::after {
    display: none;
}

.nav-dropdown .dropdown-menu a:hover {
    margin: 0;
    padding: 10px 20px;
    background: var(--gray-50);
    color: var(--primary-color);
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

/* ============================================
   按钮
   ============================================ */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 15px;
    font-weight: 500;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 58, 95, 0.3);
}

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

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

.btn-large {
    padding: 15px 40px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
}

/* ============================================
   首页 Banner
   ============================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    background: var(--primary-color) url('../images/hero-bg.png') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    margin-top: 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="3" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    background-size: 100px 100px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 40px 60px;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.hero h1 {
    font-size: 52px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    font-weight: 300;
    margin-bottom: 40px;
    opacity: 0.9;
}

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

/* ============================================
   区块标题
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 18px;
    color: var(--gray-500);
}

.section-header.light h2,
.section-header.light p {
    color: var(--white);
}

/* ============================================
   核心业务
   ============================================ */
.business-section {
    padding: var(--section-padding) 0;
    background: var(--gray-50);
}

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

.business-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

.business-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.business-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
}

.business-icon svg {
    width: 100%;
    height: 100%;
}

.business-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 15px;
}

.business-card p {
    font-size: 15px;
    color: var(--gray-600);
    margin-bottom: 20px;
    line-height: 1.7;
}

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

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

/* ============================================
   优势区块
   ============================================ */
.advantages-section {
    padding: var(--section-padding) 0;
    background: var(--primary-color);
    color: var(--white);
}

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

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

.advantage-number {
    font-size: 48px;
    font-weight: 700;
    color: rgba(255,255,255,0.2);
    margin-bottom: 15px;
}

.advantage-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.advantage-item p {
    font-size: 15px;
    opacity: 0.8;
    line-height: 1.6;
}

/* ============================================
   CTA 区块
   ============================================ */
.cta-section {
    padding: var(--section-padding) 0;
    background: var(--gray-100);
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 30px;
}

.cta-contact {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
}

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

.cta-label {
    display: block;
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 5px;
}

.cta-value {
    display: block;
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
}

/* ============================================
   页脚
   ============================================ */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-logo .logo-cn {
    color: var(--white);
    font-size: 24px;
}

.footer-logo .logo-en {
    color: var(--gray-500);
}

.footer-desc {
    margin-top: 20px;
    font-size: 14px;
    line-height: 1.8;
}

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

.footer-links li,
.footer-contact li {
    margin-bottom: 12px;
}

.footer-links a {
    font-size: 14px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
}

.contact-icon {
    font-size: 16px;
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
}

/* ============================================
   页面标题区
   ============================================ */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    padding: 160px 0 80px;
    text-align: center;
    color: var(--white);
}

.page-header h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
}

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

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

.breadcrumb a:hover {
    text-decoration: underline;
}

/* ============================================
   关于我们页面
   ============================================ */
.about-intro {
    padding: var(--section-padding) 0;
}

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

.about-content h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 20px;
}

.about-content .lead {
    font-size: 18px;
    color: var(--gray-600);
    margin-bottom: 20px;
    line-height: 1.7;
}

.about-content p {
    font-size: 15px;
    color: var(--gray-600);
    margin-bottom: 15px;
    line-height: 1.8;
}

.image-placeholder {
    background: var(--gray-200);
    border-radius: 8px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 18px;
}

.about-image img,
.detail-image img,
.service-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 8px;
}

/* 企业文化 */
.culture-section {
    padding: var(--section-padding) 0;
    background: var(--gray-50);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

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

.culture-card:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.culture-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
}

.culture-icon svg {
    width: 100%;
    height: 100%;
}

.culture-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 10px;
}

.culture-card p {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.6;
}

/* 发展历程 */
.history-section {
    padding: var(--section-padding) 0;
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 100px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gray-200);
}

.timeline-item {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
    position: relative;
}

.timeline-year {
    width: 100px;
    text-align: right;
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    flex-shrink: 0;
}

.timeline-content {
    background: var(--gray-50);
    padding: 25px 30px;
    border-radius: 8px;
    flex: 1;
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 30px;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 4px solid var(--white);
    box-shadow: 0 0 0 2px var(--primary-color);
}

.timeline-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 10px;
}

.timeline-content p {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.6;
}

/* ============================================
   招商运营页面
   ============================================ */
.service-detail {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.service-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.service-image {
    margin-top: 40px;
    max-width: 100%;
}

.service-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 8px;
}

.service-intro h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 20px;
}

.service-intro .lead {
    font-size: 18px;
    color: var(--gray-600);
    line-height: 1.7;
}

.service-content {
    padding: 60px 0;
    background: var(--gray-50);
}

.service-grid {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.service-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 30px;
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    transition: var(--transition);
}

.service-item:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.service-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    opacity: 0.3;
    line-height: 1;
}

.service-info h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 10px;
}

.service-info > p {
    font-size: 15px;
    color: var(--gray-600);
    margin-bottom: 20px;
}

.service-info ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.service-info li {
    font-size: 14px;
    color: var(--gray-600);
    padding-left: 20px;
    position: relative;
}

.service-info li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* 优势列表 */
.advantages-list {
    max-width: 900px;
    margin: 0 auto;
}

.advantage-row {
    display: flex;
    align-items: center;
    gap: 30px;
    padding: 30px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.advantage-row:last-child {
    border-bottom: none;
}

.advantage-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
}

.advantage-icon svg {
    width: 100%;
    height: 100%;
}

.advantage-text h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.advantage-text p {
    font-size: 15px;
    opacity: 0.8;
}

/* 服务对象 */
.clients-section {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.client-card {
    text-align: center;
    padding: 40px 30px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    transition: var(--transition);
}

.client-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

.client-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.client-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 10px;
}

.client-card p {
    font-size: 14px;
    color: var(--gray-600);
}

/* ============================================
   企业服务页面
   ============================================ */
.service-overview {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.overview-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.overview-content h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 20px;
}

.overview-content .lead {
    font-size: 18px;
    color: var(--gray-600);
    line-height: 1.7;
}

.service-detail-section {
    padding: var(--section-padding) 0;
}

.service-entry-section {
    padding: 70px 0;
    background: var(--gray-50);
}

.service-entry-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.service-category-heading {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 0 4px;
    border-bottom: 1px solid var(--gray-200);
}

.service-category-heading > span {
    color: var(--accent-color);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: .08em;
}

.service-category-heading h3 {
    margin: 0 0 4px;
    color: var(--primary-color);
    font-size: 22px;
}

.service-category-heading p {
    margin: 0;
    color: var(--gray-500);
    font-size: 14px;
}

.service-entry-card {
    display: flex;
    flex-direction: column;
    min-height: 220px;
    padding: 28px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    transition: var(--transition);
}

.service-entry-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: 0 12px 28px rgba(30, 58, 95, 0.1);
}

.service-entry-card.highlighted {
    border-color: rgba(30, 58, 95, 0.35);
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.entry-tag {
    display: inline-flex;
    align-self: flex-start;
    margin-bottom: 14px;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--gray-100);
    color: var(--primary-color);
    font-size: 13px;
    font-weight: 600;
}

.service-entry-card h3 {
    margin-bottom: 12px;
    color: var(--gray-900);
    font-size: 20px;
    font-weight: 700;
}

.service-entry-card p {
    color: var(--gray-600);
    font-size: 15px;
    line-height: 1.8;
}

.service-entry-card a {
    margin-top: auto;
    padding-top: 18px;
    color: var(--primary-color);
    font-weight: 600;
}

.service-entry-card a:hover {
    text-decoration: underline;
}

@media (max-width: 1024px) {
    .service-entry-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .service-entry-section {
        padding: 52px 0;
    }

    .service-entry-grid {
        grid-template-columns: 1fr;
    }

    .service-entry-card {
        min-height: auto;
        padding: 24px 22px;
    }
}

.service-detail-section.alt {
    background: var(--gray-50);
}

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

.detail-grid.reverse {
    direction: rtl;
}

.detail-grid.reverse > * {
    direction: ltr;
}

.detail-header {
    margin-bottom: 20px;
}

.detail-tag {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    font-size: 12px;
    font-weight: 500;
    padding: 5px 15px;
    border-radius: 20px;
    margin-bottom: 15px;
}

.detail-content h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-800);
}

.detail-desc {
    font-size: 16px;
    color: var(--gray-600);
    margin-bottom: 30px;
    line-height: 1.7;
}

.detail-features h3,
.detail-benefits h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 15px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--gray-600);
}

.feature-check {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    flex-shrink: 0;
}

.detail-benefits ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.detail-benefits li {
    font-size: 14px;
    color: var(--gray-600);
    padding-left: 20px;
    position: relative;
}

.detail-benefits li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* 其他服务 */
.other-services {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.other-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.other-card {
    text-align: center;
    padding: 40px 30px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    transition: var(--transition);
}

.other-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.other-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 20px;
}

.other-icon svg {
    width: 100%;
    height: 100%;
}

.other-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 10px;
}

.other-card p {
    font-size: 14px;
    color: var(--gray-600);
}

/* 服务流程 */
.process-section {
    padding: var(--section-padding) 0;
    background: var(--primary-color);
}

.process-steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.process-step {
    text-align: center;
    color: var(--white);
    width: 180px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--white);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 15px;
}

.process-step h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.process-step p {
    font-size: 14px;
    opacity: 0.8;
}

.process-arrow {
    font-size: 32px;
    color: rgba(255,255,255,0.5);
}

/* ============================================
   FAQ 页面
   ============================================ */
.faq-section {
    padding: var(--section-padding) 0;
    background: var(--gray-50);
}

.faq-list {
    max-width: 1180px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
    gap: 18px;
}

.faq-item {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
    align-self: start;
}

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

.faq-question {
    width: 100%;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-family);
    font-size: 16px;
    font-weight: 500;
    color: var(--gray-800);
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary-color);
}

.faq-question .faq-q-mark {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    font-size: 14px;
    font-weight: 700;
    margin-right: 8px;
}

.faq-question .faq-arrow {
    flex-shrink: 0;
    transition: transform 0.3s ease;
    color: var(--gray-400);
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 24px;
}

.faq-item.active .faq-answer {
    max-height: 1000px;
    padding: 0 24px 24px;
}

.faq-answer-inner {
    font-size: 15px;
    line-height: 1.8;
    color: var(--gray-600);
    border-top: 1px solid var(--gray-100);
    padding-top: 16px;
}

.faq-answer-inner p {
    margin-bottom: 10px;
}

.faq-answer-inner table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
    font-size: 14px;
}

.faq-answer-inner table th,
.faq-answer-inner table td {
    padding: 10px 14px;
    border: 1px solid var(--gray-200);
    text-align: left;
}

.faq-answer-inner table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-700);
}

.faq-answer-inner table td {
    color: var(--gray-600);
}

.faq-answer-inner strong {
    color: var(--gray-800);
}

@media (max-width: 900px) {
    .faq-list {
        grid-template-columns: 1fr;
        max-width: 900px;
    }
}

/* Verified company credentials */
.credential-section {
    padding: 72px 0;
    background: var(--gray-50);
}

.credential-grid {
    display: grid;
    grid-template-columns: minmax(360px, 1.1fr) minmax(320px, 0.9fr);
    gap: 42px;
    align-items: center;
}

.credential-image-card {
    margin: 0;
    padding: 14px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    box-shadow: var(--shadow-md);
}

.credential-image-card img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 6px;
}

.credential-image-card figcaption {
    padding: 12px 4px 2px;
    color: var(--gray-500);
    text-align: center;
    font-size: 14px;
}

.credential-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 999px;
    background: #eef5ff;
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 14px;
}

.credential-details h3 {
    margin-bottom: 22px;
    color: var(--primary-color);
    font-size: 26px;
}

.credential-details dl {
    margin: 0;
}

.credential-details dl div {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 18px;
    padding: 13px 0;
    border-bottom: 1px solid var(--gray-200);
}

.credential-details dt {
    color: var(--gray-500);
}

.credential-details dd {
    margin: 0;
    color: var(--gray-700);
    font-weight: 500;
}

.credential-note {
    margin-top: 18px;
    color: var(--gray-500);
    font-size: 14px;
    line-height: 1.7;
}

.credential-grid-secondary {
    margin-top: 48px;
    padding-top: 48px;
    border-top: 1px solid var(--gray-200);
}

.credential-callout {
    padding: 48px 0;
    background: #f4f8fc;
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
}

.credential-callout-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.credential-callout h2 {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 28px;
}

.credential-callout p {
    color: var(--gray-600);
    margin: 0;
}

@media (max-width: 900px) {
    .credential-grid {
        grid-template-columns: 1fr;
    }
    .credential-callout-inner {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .credential-section {
        padding: 52px 0;
    }
    .credential-details dl div {
        grid-template-columns: 1fr;
        gap: 5px;
    }
}

/* ============================================
   客户案例页面
   ============================================ */
.cases-section {
    padding: var(--section-padding) 0;
    background: var(--gray-50);
}

.cases-list {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.case-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    padding: 40px;
    transition: var(--transition);
}

.case-card:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

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

.case-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-800);
}

.case-tag {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    font-size: 13px;
    font-weight: 500;
    padding: 4px 14px;
    border-radius: 20px;
    white-space: nowrap;
}

.case-content {
    font-size: 15px;
    line-height: 1.8;
    color: var(--gray-600);
}

.case-content p {
    margin-bottom: 10px;
}

.case-content strong {
    color: var(--gray-800);
}

.case-section-title {
    font-weight: 600;
    color: var(--primary-color);
    margin-right: 8px;
}

.case-highlight {
    background: #fef9e7;
    border-left: 3px solid var(--accent-color, #f59e0b);
    padding: 14px 20px;
    margin: 16px 0;
    border-radius: 4px;
    font-size: 15px;
    color: var(--gray-700);
}

.case-highlight strong {
    color: var(--gray-800);
}

/* ============================================
   联系我们页面
   ============================================ */
.contact-info-section {
    padding: var(--section-padding) 0;
    background: var(--white);
}

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

.contact-card {
    text-align: center;
    padding: 50px 30px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    transition: var(--transition);
}

.contact-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.contact-icon-large {
    font-size: 48px;
    margin-bottom: 20px;
}

.contact-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 10px;
}

.contact-card p {
    font-size: 16px;
    color: var(--gray-600);
}

.contact-sub {
    font-size: 14px;
    color: var(--gray-400);
    margin-top: 5px;
}

/* 联系主体 */
.contact-main {
    padding: var(--section-padding) 0;
    background: var(--gray-50);
}

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

.map-section h3,
.form-section h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 20px;
}

.map-container {
    border-radius: 8px;
    overflow: hidden;
    background: var(--gray-200);
}

.map-info {
    margin-top: 15px;
    text-align: center;
}

.map-info p {
    font-size: 16px;
    color: var(--gray-600);
    margin-bottom: 15px;
}

/* 表单 */
.form-desc {
    font-size: 15px;
    color: var(--gray-500);
    margin-bottom: 25px;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.required {
    color: #ef4444;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-note {
    margin-top: 20px;
    padding: 15px;
    background: var(--gray-100);
    border-radius: 4px;
    font-size: 13px;
    color: var(--gray-500);
}

/* 服务时间 */
.business-hours {
    padding: 60px 0;
    background: var(--white);
}

.hours-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.hours-content h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 30px;
}

.hours-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 20px;
}

.hours-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.days {
    font-size: 14px;
    color: var(--gray-500);
}

.time {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
}

.hours-note {
    font-size: 14px;
    color: var(--gray-500);
}

/* 常见问题 */
.faq-section {
    padding: var(--section-padding) 0;
    background: var(--gray-50);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.faq-question {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
}

.faq-q {
    color: var(--primary-color);
    font-weight: 700;
}

.faq-answer {
    display: flex;
    gap: 15px;
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.7;
}

.faq-a {
    color: var(--gray-400);
    font-weight: 700;
}

/* 联系我们页常见问题 */
.contact-faq-section {
    padding: var(--section-padding) 0;
    background: var(--gray-50);
}

.contact-faq-list {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    gap: 18px;
}

.contact-faq-item {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 14px;
    padding: 26px 30px;
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.04);
}

.contact-faq-question,
.contact-faq-answer {
    display: grid;
    grid-template-columns: 34px 1fr;
    gap: 14px;
    align-items: start;
}

.contact-faq-question {
    margin-bottom: 14px;
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-900);
}

.contact-faq-answer {
    font-size: 15px;
    line-height: 1.8;
    color: var(--gray-600);
}

.contact-faq-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    background: rgba(255, 51, 102, 0.1);
    color: var(--primary-color);
}

.contact-faq-answer .contact-faq-label {
    background: var(--gray-100);
    color: var(--gray-500);
}

@media (max-width: 768px) {
    .contact-faq-item {
        padding: 22px 20px;
    }

    .contact-faq-question,
    .contact-faq-answer {
        grid-template-columns: 30px 1fr;
        gap: 12px;
    }

    .contact-faq-question {
        font-size: 16px;
    }
}

/* ============================================
   通知组件
   ============================================ */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.notification {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--white);
    padding: 15px 25px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 15px;
    z-index: 9999;
    animation: slideDown 0.3s ease;
}

.notification-success {
    background: #10b981;
}

.notification-error {
    background: #ef4444;
}

.notification-info {
    background: #3b82f6;
}

.notification-message {
    font-size: 15px;
}

.notification-close {
    background: none;
    border: none;
    color: var(--white);
    font-size: 20px;
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.notification-close:hover {
    opacity: 1;
}

/* ============================================
   滚动动画
   ============================================ */
.scroll-animate {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-animate.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 1024px) {
    .business-grid,
    .culture-grid,
    .advantages-grid,
    .clients-grid,
    .other-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-card:last-child {
        grid-column: span 2;
    }
}

@media (max-width: 1100px) {
    .nav-menu {
        gap: 20px;
    }

    .nav-menu a {
        font-size: 13px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 0;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        transform: translateY(-150%);
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
    }
    
    .nav-menu li {
        border-bottom: 1px solid var(--gray-100);
    }
    
    .nav-menu a {
        display: block;
        padding: 15px 0;
        cursor: pointer;
        position: relative;
        z-index: 1;
    }
    
    .nav-menu a::after {
        display: none;
    }
    
    .nav-menu a:hover,
    .nav-menu a.active {
        color: var(--primary-color);
        background: var(--gray-50);
        margin: 0 -20px;
        padding: 15px 20px;
    }
    
    .hamburger {
        display: flex;
        z-index: 1001;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .business-grid,
    .culture-grid,
    .advantages-grid,
    .clients-grid,
    .other-grid,
    .contact-cards {
        grid-template-columns: 1fr;
    }
    
    .contact-card:last-child {
        grid-column: span 1;
    }
    
    .about-grid,
    .detail-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .detail-grid.reverse {
        direction: ltr;
    }
    
    .service-item {
        grid-template-columns: 1fr;
    }
    
    .service-number {
        font-size: 36px;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column;
        gap: 15px;
    }
    
    .timeline-year {
        width: auto;
        text-align: left;
        padding-left: 50px;
    }
    
    .timeline-content::before {
        left: 10px;
    }
    
    .cta-contact {
        flex-direction: column;
        gap: 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .process-steps {
        flex-direction: column;
    }
    
    .process-arrow {
        transform: rotate(90deg);
    }
    
    .hours-grid {
        flex-direction: column;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .page-header h1 {
        font-size: 32px;
    }
    
    .contact-form {
        padding: 25px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   资讯中心页面
   ============================================ */
.news-section {
    padding: var(--section-padding) 0;
    background: var(--white);
}

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

.news-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
}

.news-card:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transform: translateY(-5px);
}

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

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.news-content {
    padding: 25px;
}

.news-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.news-category {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    font-size: 12px;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 20px;
}

.news-date {
    font-size: 13px;
    color: var(--gray-400);
}

.news-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-summary {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 15px;
    line-height: 1.6;
}

.news-link {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.news-link:hover {
    text-decoration: underline;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 50px;
}

.page-link {
    padding: 10px 20px;
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    font-size: 14px;
    color: var(--gray-600);
    transition: var(--transition);
}

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

.page-current {
    padding: 10px 20px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 4px;
    font-weight: 600;
}

/* ============================================
   入驻企业页面
   ============================================ */
.enterprises-section {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.enterprise-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin: 50px 0;
    padding: 40px;
    background: var(--gray-50);
    border-radius: 8px;
}

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

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--gray-500);
}

.enterprise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.enterprise-buildings {
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.building-section {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    overflow: hidden;
}

.building-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    background: var(--primary-color);
    color: var(--white);
}

.building-header h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 0;
}

.building-count {
    font-size: 14px;
    background: rgba(255,255,255,0.2);
    padding: 4px 12px;
    border-radius: 20px;
}

.enterprise-table {
    padding: 0;
}

.enterprise-table table {
    width: 100%;
    border-collapse: collapse;
}

.enterprise-table th {
    background: var(--gray-50);
    padding: 12px 20px;
    text-align: left;
    font-weight: 600;
    color: var(--gray-700);
    border-bottom: 2px solid var(--gray-200);
}

.enterprise-table td {
    padding: 12px 20px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-700);
}

.enterprise-table tr:hover {
    background: var(--gray-50);
}

.enterprise-table tr:last-child td {
    border-bottom: none;
}

@media (max-width: 768px) {
    .building-header {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .enterprise-table th,
    .enterprise-table td {
        padding: 10px 12px;
        font-size: 14px;
    }
}

.enterprise-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    padding: 30px;
    text-align: center;
    transition: var(--transition);
}

.enterprise-card:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.enterprise-logo {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon {
    font-size: 36px;
}

.enterprise-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 8px;
}

.enterprise-industry {
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 15px;
}

.enterprise-desc {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 20px;
}

.enterprise-tags {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.tag {
    font-size: 12px;
    color: var(--gray-600);
    background: var(--gray-100);
    padding: 4px 12px;
    border-radius: 20px;
}

/* 响应式 */
@media (max-width: 1024px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .enterprise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .enterprise-stats {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .enterprise-grid {
        grid-template-columns: 1fr;
    }
    
    .enterprise-stats {
        flex-direction: column;
        gap: 20px;
    }
}

/* ============================================
   移动端优化
   ============================================ */
@media (max-width: 768px) {
    /* 导航栏优化 */
    .navbar .container {
        height: 64px;
    }
    
    .logo-cn {
        font-size: 18px;
    }
    
    .logo-en {
        font-size: 10px;
    }
    
    /* Hero区域优化 */
    .hero {
        min-height: 75vh;
        padding-top: 100px;
        padding-bottom: 40px;
        align-items: flex-start;
        margin-top: 64px;
    }
    
    .hero-content {
        padding: 30px 20px;
        margin-top: 60px;
        background: rgba(0, 0, 0, 0.08);
    }
    
    .hero h1 {
        font-size: 26px;
        line-height: 1.4;
    }
    
    .hero-subtitle {
        font-size: 14px;
    }
    
    .hero-buttons .btn {
        width: 100%;
        text-align: center;
    }
    
    /* 页面间距优化 */
    :root {
        --section-padding: 50px;
    }
    
    /* 卡片优化 */
    .news-card,
    .enterprise-card {
        border-radius: 12px;
    }
    
    .news-image {
        height: 180px;
    }
    
    .news-content,
    .enterprise-card {
        padding: 20px;
    }
    
    .news-title,
    .enterprise-name {
        font-size: 17px;
        line-height: 1.5;
    }
    
    .news-summary,
    .enterprise-desc {
        font-size: 14px;
        line-height: 1.7;
    }
    
    /* 统计数据优化 */
    .enterprise-stats {
        padding: 30px 20px;
    }
    
    .stat-number {
        font-size: 32px;
    }
    
    .stat-label {
        font-size: 13px;
    }
    
    /* 分页优化 */
    .pagination {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .page-link {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    /* 标签优化 */
    .news-category,
    .tag {
        font-size: 11px;
        padding: 3px 10px;
    }
    
    /* 页面标题优化 */
    .page-header {
        padding: 80px 0 40px;
    }
    
    .page-header h1 {
        font-size: 28px;
    }
    
    .breadcrumb {
        font-size: 13px;
    }
    
    /* 按钮优化 */
    .btn {
        padding: 14px 24px;
        font-size: 15px;
    }
    
    .btn-large {
        padding: 16px 32px;
        font-size: 16px;
    }
    
    /* CTA区域优化 */
    .cta-section {
        padding: 50px 0;
    }
    
    .cta-content h2 {
        font-size: 24px;
    }
    
    .cta-content p {
        font-size: 15px;
    }
    
    /* 企业卡片Logo优化 */
    .enterprise-logo {
        width: 70px;
        height: 70px;
    }
    
    .logo-icon {
        font-size: 30px;
    }
    
    /* 可点击区域增大 */
    .news-link,
    .nav-menu a {
        padding: 12px 0;
    }
}

@media (max-width: 480px) {
    /* 超小屏优化 */
    .hero h1 {
        font-size: 26px;
    }
    
    .hero-subtitle {
        font-size: 14px;
    }
    
    .section-header h2 {
        font-size: 24px;
    }
    
    .section-header p {
        font-size: 14px;
    }
    
    .page-header h1 {
        font-size: 26px;
    }
    
    .news-image {
        height: 160px;
    }
    
    .news-content {
        padding: 18px;
    }
    
    .enterprise-card {
        padding: 18px;
    }
    
    .news-meta {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .enterprise-tags {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    /* 通知弹窗优化 */
    .notification {
        left: 15px;
        right: 15px;
        font-size: 14px;
    }

    /* 防止移动端横向滚动 */
    body {
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
    }
}

/* 移动端触摸优化 */
.news-card,
.enterprise-card,
.btn {
    -webkit-tap-highlight-color: transparent;
}

/* 改善移动端图片加载 */
img {
    display: block;
}

/* 移动端表单优化 */
input, textarea {
    font-size: 16px !important;
    -webkit-appearance: none;
}

/* 移动端导航菜单全屏 */
@media (max-width: 768px) {
    .nav-menu {
        padding: 20px;
        max-height: calc(100vh - 64px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* 改善移动端滚动体验 */
section {
    scroll-margin-top: 70px;
}

/* ===== 资讯中心页面优化 ===== */
.news-card {
    height: 500px !important;
    display: flex !important;
    flex-direction: column !important;
}

.news-image {
    height: 220px !important;
    padding: 12px !important;
    background: #f8fafc !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    overflow: visible !important;
}

.news-image img {
    width: 100% !important;
    height: 100% !important;
    object-fit: contain !important;
    object-position: center !important;
    border-radius: 4px !important;
}

.news-content {
    padding: 22px !important;
    display: flex !important;
    flex-direction: column !important;
    height: calc(100% - 220px) !important;
}

.news-summary {
    font-size: 14px !important;
    color: #666 !important;
    margin-bottom: 15px !important;
    line-height: 1.7 !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 4 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    min-height: 95px !important;
}

.news-link {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 5px !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    color: #fff !important;
    background: #1e3a5f !important;
    padding: 10px 20px !important;
    border-radius: 4px !important;
    margin-top: auto !important;
}

.news-link:hover {
    background: #152a45 !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 12px rgba(30, 58, 95, 0.3) !important;
}

@media (max-width: 768px) {
    .news-card {
        height: 450px !important;
    }
    .news-image {
        height: 180px !important;
    }
    .news-content {
        height: calc(100% - 180px) !important;
    }
}

@media (max-width: 480px) {
    .news-card {
        height: auto !important;
        min-height: 400px !important;
    }
    .news-image {
        height: 160px !important;
    }
    .news-content {
        height: auto !important;
    }
    .news-summary {
        -webkit-line-clamp: 3 !important;
    }
}

/* ===== 资讯中心页面优化 ===== */
.news-card {
    height: 520px !important;
    display: flex !important;
    flex-direction: column !important;
    background: #fff !important;
    border-radius: 12px !important;
    overflow: hidden !important;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08) !important;
    transition: all 0.3s ease !important;
}

.news-card:hover {
    transform: translateY(-5px) !important;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12) !important;
}

.news-image {
    height: 200px !important;
    padding: 10px !important;
    background: #f8fafc !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    overflow: visible !important;
}

.news-image img {
    width: 100% !important;
    height: 100% !important;
    object-fit: contain !important;
    object-position: center !important;
    border-radius: 6px !important;
}

.news-content {
    padding: 20px !important;
    display: flex !important;
    flex-direction: column !important;
    flex: 1 !important;
}

.news-summary {
    font-size: 14px !important;
    color: #666 !important;
    line-height: 1.7 !important;
    display: -webkit-box !important;
    -webkit-line-clamp: 3 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    min-height: 71px !important;
    margin-bottom: 15px !important;
}

.news-link {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 6px !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    color: #fff !important;
    background: #1e3a5f !important;
    padding: 10px 20px !important;
    border-radius: 6px !important;
    text-decoration: none !important;
    transition: all 0.3s ease !important;
    margin-top: auto !important;
    align-self: flex-start !important;
}

.news-link:hover {
    background: #152a45 !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 12px rgba(30, 58, 95, 0.3) !important;
}

/* ============================================
   文章页面样式（区域专题）
   ============================================ */
.article-list-section {
    padding: 72px 0 84px;
    background:
        radial-gradient(circle at 8% 4%, rgba(197, 153, 72, 0.1), transparent 28%),
        linear-gradient(180deg, #f7f8f6 0%, #eef2f3 100%);
}

.article-list-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
    gap: 56px;
    align-items: end;
    margin-bottom: 34px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(30, 58, 95, 0.14);
}

.article-list-kicker {
    display: block;
    margin-bottom: 10px;
    color: #a2752c;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.article-list-intro h2 {
    max-width: 680px;
    color: var(--gray-800);
    font-size: clamp(26px, 3vw, 38px);
    line-height: 1.3;
}

.article-list-intro p {
    color: var(--gray-600);
    font-size: 15px;
    line-height: 1.8;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}

.article-card {
    min-width: 0;
    overflow: hidden;
    background: var(--white);
    border: 1px solid rgba(30, 58, 95, 0.12);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(25, 43, 58, 0.06);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.article-card:hover {
    transform: translateY(-4px);
    border-color: rgba(30, 58, 95, 0.34);
    box-shadow: 0 18px 42px rgba(25, 43, 58, 0.12);
}

.article-card-link {
    display: flex;
    min-height: 100%;
    color: inherit;
    text-decoration: none;
}

.article-card-top {
    display: flex;
    flex: 0 0 92px;
    flex-direction: column;
    justify-content: space-between;
    padding: 24px 16px 22px;
    color: #fff;
    background: linear-gradient(155deg, #16334f 0%, #2b5972 100%);
}

.article-card--guide .article-card-top {
    color: #19354b;
    background: linear-gradient(155deg, #e5c78e 0%, #c99a49 100%);
}

.article-card-index {
    font-family: Georgia, "Times New Roman", serif;
    font-size: 30px;
    line-height: 1;
}

.article-card-type {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.12em;
    writing-mode: vertical-rl;
}

.article-card-content {
    display: flex;
    flex: 1;
    flex-direction: column;
    min-width: 0;
    padding: 26px 28px 24px;
}

.article-region-tag {
    align-self: flex-start;
    margin-bottom: 12px;
    padding: 4px 10px;
    color: #254d65;
    background: #edf4f6;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}

.article-card--guide .article-region-tag {
    color: #825f24;
    background: #fbf3e4;
}

.article-card-content h2 {
    margin-bottom: 12px;
    color: var(--gray-800);
    font-size: 21px;
    line-height: 1.45;
}

.article-card-content > p {
    display: -webkit-box;
    overflow: hidden;
    margin-bottom: 22px;
    color: var(--gray-600);
    font-size: 14px;
    line-height: 1.75;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.article-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--gray-100);
    font-size: 13px;
}

.article-date {
    color: var(--gray-500);
}

.article-read-more {
    color: var(--primary-color);
    font-weight: 700;
}

@media (max-width: 900px) {
    .article-list-intro {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .article-list-section {
        padding: 48px 0 60px;
    }

    .article-list-intro {
        margin-bottom: 24px;
        padding-bottom: 22px;
    }

    .article-card-link {
        display: block;
    }

    .article-card-top {
        flex-basis: auto;
        flex-direction: row;
        align-items: center;
        padding: 14px 20px;
    }

    .article-card-index {
        font-size: 24px;
    }

    .article-card-type {
        writing-mode: horizontal-tb;
    }

    .article-card-content {
        padding: 22px 20px 20px;
    }

    .article-card-content h2 {
        font-size: 19px;
    }
}

.article-section {
    padding: var(--section-padding) 0;
    background: var(--white);
}

.article-content {
    max-width: 900px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.9;
    color: var(--gray-700);
}

.article-content h1 {
    font-size: 36px;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 30px;
    line-height: 1.3;
}

.article-content h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-800);
    margin: 40px 0 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gray-100);
}

.article-content h3 {
    font-size: 22px;
    font-weight: 600;
    color: var(--gray-800);
    margin: 30px 0 15px;
}

.article-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
    margin: 25px 0 12px;
}

.article-content p {
    margin-bottom: 16px;
}

.article-content strong {
    color: var(--gray-800);
}

.article-content blockquote {
    background: #fef9e7;
    border-left: 4px solid var(--accent-color, #f59e0b);
    padding: 16px 20px;
    margin: 24px 0;
    border-radius: 0 6px 6px 0;
    font-size: 15px;
    color: var(--gray-700);
}

.article-content blockquote p {
    margin-bottom: 0;
}

.article-content ul {
    margin: 16px 0;
    padding-left: 24px;
}

.article-content ul li {
    list-style: disc;
    margin-bottom: 8px;
    font-size: 15px;
}

.article-table-wrapper {
    overflow-x: auto;
    margin: 24px 0;
}

.article-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
}

.article-table th,
.article-table td {
    padding: 12px 16px;
    border: 1px solid var(--gray-200);
    text-align: left;
}

.article-table th {
    background: var(--primary-color);
    color: var(--white);
    font-weight: 600;
}

.article-table td {
    color: var(--gray-600);
}

.article-table tr:nth-child(even) td {
    background: var(--gray-50);
}

@media (max-width: 768px) {
    .article-content h1 {
        font-size: 26px;
    }
    .article-content h2 {
        font-size: 22px;
    }
    .article-content h3 {
        font-size: 18px;
    }
}

/* 响应式适配 */
@media (max-width: 768px) {
    .news-card {
        height: 480px !important;
    }
    .news-image {
        height: 180px !important;
    }
}

@media (max-width: 480px) {
    .news-card {
        height: auto !important;
        min-height: 400px !important;
    }
    .news-image {
        height: 160px !important;
    }
    .news-summary {
        -webkit-line-clamp: 2 !important;
        min-height: 48px !important;
    }
    .news-link {
        width: 100% !important;
        align-self: center !important;
    }
}

/* SEO service landing pages */
.seo-landing {
    background: var(--white);
}

.seo-section {
    padding: 72px 0;
}

.seo-section.muted {
    background: var(--gray-50);
}

.seo-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.8fr);
    gap: 42px;
    align-items: start;
}

.seo-section h2 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 18px;
}

.seo-section p {
    color: var(--gray-600);
    font-size: 17px;
    line-height: 1.85;
    margin-bottom: 14px;
}

.seo-side-card,
.seo-card-grid article {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    padding: 28px;
    box-shadow: var(--shadow-sm);
}

.seo-side-card h3,
.seo-card-grid h3 {
    color: var(--primary-color);
    margin-bottom: 14px;
}

.seo-side-card ul,
.seo-check-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.seo-side-card li,
.seo-check-list li {
    color: var(--gray-600);
    padding: 10px 0 10px 24px;
    position: relative;
    border-bottom: 1px solid var(--gray-100);
}

.seo-side-card li::before,
.seo-check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 700;
}

.seo-card-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
}

.seo-card-grid article p {
    font-size: 15px;
    line-height: 1.7;
    margin: 0;
}

.seo-steps {
    counter-reset: seo-step;
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.seo-steps li {
    counter-increment: seo-step;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    padding: 24px 20px;
    color: var(--gray-600);
    line-height: 1.7;
}

.seo-steps li::before {
    content: counter(seo-step);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-color);
    color: var(--white);
    font-weight: 700;
    margin-bottom: 14px;
}

@media (max-width: 900px) {
    .seo-grid,
    .seo-card-grid,
    .seo-steps {
        grid-template-columns: 1fr;
    }
    .seo-section {
        padding: 52px 0;
    }
    .seo-section h2 {
        font-size: 26px;
    }
}