/*
Theme Name: Enterprise Theme
Theme URI: http://localhost/
Description: 专业企业WordPress主题，适用于B端产品展示和SEO优化
Version: 1.0.0
Author: Enterprise Team
Author URI: http://localhost/
Text Domain: enterprise-theme
Tags: enterprise, business, product-showcase, seo-optimized, responsive
*/

/* ==========================================
   CSS 变量系统 - 支持颜色方案切换
   ========================================== */
:root {
    /* 默认蓝色方案 */
    --primary-color: #0073aa;
    --primary-dark: #005a87;
    --primary-light: #e8f4f8;
    --secondary-color: #00a0d2;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    
    /* 中性色 */
    --text-color: #333333;
    --text-light: #666666;
    --text-lighter: #999999;
    --bg-color: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a1a;
    --border-color: #e0e0e0;
    
    /* 间距 */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 80px;
    
    /* 布局 */
    --container-width: 1200px;
    --header-height: 80px;
    
    /* 圆角 */
    --border-radius: 6px;
    --border-radius-lg: 12px;
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
    --shadow-hover: 0 12px 32px rgba(0,0,0,0.15);
    
    /* 过渡 */
    --transition: all 0.3s ease;
}

/* 绿色方案 */
.color-scheme-green {
    --primary-color: #27ae60;
    --primary-dark: #1e8449;
    --primary-light: #eafaf1;
    --secondary-color: #2ecc71;
    --accent-color: #f39c12;
}

/* 深色方案 */
.color-scheme-dark {
    --primary-color: #2c3e50;
    --primary-dark: #1a252f;
    --primary-light: #34495e;
    --secondary-color: #34495e;
    --accent-color: #e74c3c;
    --text-color: #e0e0e0;
    --text-light: #b0b0b0;
    --bg-color: #1a1a1a;
    --bg-light: #2a2a2a;
    --border-color: #3a3a3a;
}

/* ==========================================
   重置与基础样式
   ========================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--bg-color);
    overflow-x: hidden;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-sm);
}

ul, ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

/* ==========================================
   布局容器
   ========================================== */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ==========================================
   头部导航栏
   ========================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    height: var(--header-height);
    transition: var(--transition);
}

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

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Logo区域 */
.site-branding {
    flex-shrink: 0;
    margin-right: var(--spacing-lg);
}

.site-logo {
    display: block;
    max-height: 50px;
    width: auto;
}

.site-title {
    font-size: 1.5rem;
    margin: 0;
}

.site-title a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 800;
}

.site-description {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0;
}

/* 主导航 */
.main-navigation {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 4px;
}

.nav-menu > .menu-item {
    position: relative;
}

.nav-menu > .menu-item > a {
    display: block;
    padding: 12px 18px;
    color: var(--text-color);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-menu > .menu-item > a:hover,
.nav-menu > .menu-item.current-menu-item > a,
.nav-menu > .menu-item.current-menu-ancestor > a {
    color: var(--primary-color);
    background: var(--primary-light);
}

/* 下拉菜单 */
.nav-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: #fff;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius);
    padding: 8px 0;
    list-style: none;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    z-index: 100;
}

.nav-menu > .menu-item:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-menu .sub-menu .menu-item a {
    display: block;
    padding: 10px 20px;
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.nav-menu .sub-menu .menu-item a:hover {
    color: var(--primary-color);
    background: var(--primary-light);
    padding-left: 28px;
}

/* 头部CTA按钮 */
.header-cta {
    flex-shrink: 0;
    margin-left: var(--spacing-md);
}

.header-cta .btn {
    padding: 10px 24px;
    font-size: 0.9rem;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    flex-direction: column;
    gap: 5px;
}

.menu-icon {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-color);
    transition: var(--transition);
}

.menu-text {
    font-size: 0.75rem;
    color: var(--text-light);
}

/* ==========================================
   Banner 轮播
   ========================================== */
.banner-slider {
    position: relative;
    margin-top: var(--header-height);
    height: 600px;
    overflow: hidden;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 0.8s ease;
    display: flex;
    align-items: center;
}

.banner-slide.active {
    opacity: 1;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0,115,170,0.75) 0%, rgba(0,160,210,0.6) 100%);
}

.banner-content {
    position: relative;
    z-index: 2;
    color: #fff;
    max-width: 700px;
    padding: var(--spacing-lg) 0;
}

.banner-title {
    font-size: 3.5rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.banner-description {
    font-size: 1.25rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.banner-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* Banner控制按钮 */
.banner-controls {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 20px;
    z-index: 10;
}

.banner-prev,
.banner-next {
    background: rgba(255,255,255,0.3);
    border: 2px solid rgba(255,255,255,0.6);
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    backdrop-filter: blur(4px);
}

.banner-prev:hover,
.banner-next:hover {
    background: rgba(255,255,255,0.5);
    border-color: #fff;
}

.banner-dots {
    display: flex;
    gap: 10px;
}

.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.banner-dot.active {
    background: #fff;
    transform: scale(1.2);
}

/* ==========================================
   按钮系统
   ========================================== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
    line-height: 1.4;
}

.btn-primary {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 36px;
    font-size: 1.1rem;
}

.btn-small {
    padding: 8px 18px;
    font-size: 0.9rem;
}

/* ==========================================
   区块标题通用样式
   ========================================== */
.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-color);
    margin-bottom: var(--spacing-xs);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    margin: 16px auto 0;
    border-radius: 2px;
}

.section-description {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

/* ==========================================
   特色产品区域
   ========================================== */
.featured-products {
    padding: var(--spacing-xl) 0;
    background: var(--bg-color);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.product-card {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

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

.product-thumbnail {
    aspect-ratio: 4/3;
    overflow: hidden;
}

.product-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-content {
    padding: var(--spacing-md);
}

.product-title {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.product-title a {
    color: var(--text-color);
    text-decoration: none;
}

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

.product-excerpt {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.product-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: var(--spacing-sm);
}

/* ==========================================
   关于我们简要区域
   ========================================== */
.about-brief {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

.about-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.about-text p {
    color: var(--text-light);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

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

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

/* ==========================================
   优势/特色区域
   ========================================== */
.features-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-card {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
    border: 1px solid transparent;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    display: block;
}

.feature-card h3 {
    font-size: 1.3rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-xs);
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ==========================================
   客户评价区域
   ========================================== */
.testimonials-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.testimonial-card {
    background: var(--bg-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.testimonial-content {
    margin-bottom: var(--spacing-md);
}

.testimonial-content p {
    font-size: 1.05rem;
    color: var(--text-color);
    font-style: italic;
    line-height: 1.8;
}

.testimonial-author strong {
    display: block;
    color: var(--primary-color);
    font-size: 1rem;
}

.testimonial-author span {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ==========================================
   CTA 行动召唤区域
   ========================================== */
.cta-section-home {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    text-align: center;
}

.cta-section-home h2 {
    color: #fff;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.cta-section-home p {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.9);
    margin-bottom: var(--spacing-lg);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.cta-section-home .btn-primary {
    background: #fff;
    color: var(--primary-color);
    border-color: #fff;
}

.cta-section-home .btn-primary:hover {
    background: rgba(255,255,255,0.9);
}

.cta-section-home .btn-secondary {
    color: #fff;
    border-color: #fff;
}

.cta-section-home .btn-secondary:hover {
    background: rgba(255,255,255,0.2);
}

/* ==========================================
   联系信息区域
   ========================================== */
.contact-info-section-home {
    padding: var(--spacing-xl) 0;
    background: var(--bg-color);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.contact-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--bg-light);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
}

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

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.contact-item h3 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.contact-item p {
    color: var(--text-light);
}

/* ==========================================
   最新动态/新闻区域
   ========================================== */
.latest-posts {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.post-card {
    background: var(--bg-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.post-thumbnail {
    aspect-ratio: 16/9;
    overflow: hidden;
}

.post-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.post-card:hover .post-thumbnail img {
    transform: scale(1.05);
}

.post-content {
    padding: var(--spacing-md);
}

.post-content h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.post-content h3 a {
    color: var(--text-color);
    text-decoration: none;
}

.post-content h3 a:hover {
    color: var(--primary-color);
}

.post-meta {
    font-size: 0.85rem;
    color: var(--text-lighter);
    margin-bottom: var(--spacing-xs);
}

.post-content p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.read-more {
    display: inline-block;
    margin-top: var(--spacing-xs);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ==========================================
   页脚
   ========================================== */
.site-footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.8);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-widgets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.footer-widget {
    padding: 0 var(--spacing-sm);
}

.footer-widget h3 {
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-xs);
}

.footer-widget h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary-color);
}

.footer-widget p {
    color: rgba(255,255,255,0.7);
    font-size: 0.95rem;
    line-height: 1.8;
}

.footer-widget ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-widget ul li {
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-widget ul li a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
}

.footer-bottom a {
    color: rgba(255,255,255,0.7);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: var(--spacing-sm);
}

.footer-contact-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* ==========================================
   页面横幅
   ========================================== */
.page-banner {
    margin-top: var(--header-height);
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
    text-align: center;
}

.page-banner h1 {
    color: #fff;
    font-size: 2.8rem;
    margin-bottom: var(--spacing-xs);
}

.page-banner p {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.9);
}

/* ==========================================
   面包屑导航
   ========================================== */
.breadcrumbs {
    padding: var(--spacing-sm) 0;
    background: var(--bg-light);
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: var(--header-height);
}

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

/* ==========================================
   主要内容区域
   ========================================== */
.site-main {
    min-height: 60vh;
}

.content-area {
    padding: var(--spacing-xl) 0;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-lg);
}

/* ==========================================
   侧边栏
   ========================================== */
.sidebar {
    padding: var(--spacing-md);
}

.widget {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--border-radius);
}

.widget-title {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

/* ==========================================
   分页
   ========================================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: var(--spacing-lg);
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--border-radius);
    background: var(--bg-light);
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.pagination a:hover,
.pagination .current {
    background: var(--primary-color);
    color: #fff;
}

/* ==========================================
   联系页面样式
   ========================================== */
.contact-page-section {
    padding: var(--spacing-xl) 0;
}

.contact-grid-page {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.contact-form-wrapper {
    padding: var(--spacing-lg);
    background: var(--bg-light);
    border-radius: var(--border-radius-lg);
}

.contact-form-wrapper .form-group {
    margin-bottom: var(--spacing-md);
}

.contact-form-wrapper label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

.contact-form-wrapper input,
.contact-form-wrapper textarea,
.contact-form-wrapper select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.contact-form-wrapper input:focus,
.contact-form-wrapper textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.contact-info-wrapper {
    padding: var(--spacing-lg);
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--border-radius);
}

.contact-info-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-info-item h4 {
    margin: 0 0 4px;
    font-size: 1rem;
    color: var(--primary-color);
}

.contact-info-item p {
    margin: 0;
    color: var(--text-light);
}

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

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--bg-light);
    border-radius: var(--border-radius-lg);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-light);
    margin-top: var(--spacing-xs);
}

/* ==========================================
   产品详情页
   ========================================== */
.product-detail-section {
    padding: var(--spacing-xl) 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.product-gallery {
    position: sticky;
    top: calc(var(--header-height) + 20px);
}

.product-gallery-main {
    aspect-ratio: 4/3;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.product-gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-gallery-thumbs {
    display: flex;
    gap: 8px;
}

.product-gallery-thumbs img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--border-radius);
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.product-gallery-thumbs img.active,
.product-gallery-thumbs img:hover {
    border-color: var(--primary-color);
}

.product-info h1 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.product-info .price {
    font-size: 1.5rem;
    color: var(--accent-color);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.product-features {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--border-radius);
}

.product-features h3 {
    margin-bottom: var(--spacing-sm);
}

.product-features ul {
    list-style: none;
    margin: 0;
}

.product-features li {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.product-features li::before {
    content: '✓ ';
    color: var(--success-color);
    font-weight: bold;
}

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

.about-content-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.about-text {
    min-width: 0;
}

.about-featured-image {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

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

.about-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 20px);
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.about-stats .stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--border-radius-lg);
}

.about-stats .stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1.1;
}

.about-stats .stat-label {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-top: 4px;
}

.about-advantages {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-lg);
}

.about-advantages h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.advantages-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.advantages-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.advantages-list li:last-child {
    border-bottom: none;
}

.adv-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    font-size: 0.85rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.advantages-list strong {
    display: block;
    font-size: 1rem;
    color: var(--text-color);
}

.advantages-list p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 4px 0 0;
}

.about-cta {
    padding: var(--spacing-lg) 0;
    background: var(--bg-light);
}

.about-cta h2 {
    font-size: 1.8rem;
    color: var(--primary-color);
}

/* ==========================================
   联系我们页面
   ========================================== */
.contact-page-section {
    padding: var(--spacing-xl) 0;
}

.contact-grid-page {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.contact-form-wrapper h2,
.contact-info-wrapper h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.form-intro,
.info-intro {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg-color);
    color: var(--text-color);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.required {
    color: var(--accent-color);
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: var(--spacing-md);
    background: var(--bg-light);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.contact-info-item:hover {
    box-shadow: var(--shadow-sm);
}

.contact-info-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    border-radius: var(--border-radius);
}

.contact-info-item h4 {
    margin: 0 0 4px;
    font-size: 1rem;
    color: var(--primary-color);
}

.contact-info-item p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.95rem;
}

.contact-map {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
}

.contact-map iframe {
    width: 100%;
    height: 250px;
    border: none;
}

/* ==========================================
   博客文章
   ========================================== */
.entry-header {
    margin-bottom: var(--spacing-md);
}

.entry-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.entry-meta {
    color: var(--text-lighter);
    font-size: 0.9rem;
}

.entry-content {
    line-height: 1.8;
}

.entry-content p {
    margin-bottom: var(--spacing-md);
}

.entry-content h2,
.entry-content h3,
.entry-content h4 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

/* ==========================================
   404页面
   ========================================== */
.error-404 {
    text-align: center;
    padding: 120px 0;
}

.error-404 h1 {
    font-size: 8rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.error-404 p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

/* ==========================================
   首页：核心价值主张
   ========================================== */
.home-intro {
    padding: var(--spacing-xl) 0;
    background: var(--bg-color);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.intro-title {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--text-color);
}

.intro-description {
    font-size: 1.15rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.intro-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

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

.intro-image img,
.intro-image-placeholder {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

.intro-image-placeholder {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

/* ==========================================
   首页：我们的能力
   ========================================== */
.home-capabilities {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.capability-card {
    background: var(--bg-color);
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

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

.capability-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary-light);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
    transition: var(--transition);
}

.capability-card:hover .capability-number {
    color: var(--primary-color);
}

.capability-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
}

.capability-card p {
    font-size: 0.95rem;
    color: var(--text-light);
}

/* ==========================================
   首页：选择我们的价值
   ========================================== */
.home-value {
    padding: var(--spacing-xl) 0;
    background: var(--bg-color);
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.value-card {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
}

.value-card:hover {
    background: var(--bg-light);
    transform: translateY(-4px);
}

.value-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    margin: 0 auto var(--spacing-md);
    background: var(--primary-light);
    border-radius: 50%;
    color: var(--primary-color);
    transition: var(--transition);
}

.value-icon svg {
    width: 32px;
    height: 32px;
}

.value-card:hover .value-icon {
    background: var(--primary-color);
    color: #fff;
}

.value-card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xs);
}

.value-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* ==========================================
   首页：产品中心
   ========================================== */
.home-products {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

/* ==========================================
   首页：数据统计
   ========================================== */
.home-stats {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    text-align: center;
}

.home-stats .stat-item {
    padding: var(--spacing-md);
}

.home-stats .stat-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.home-stats .stat-number {
    font-size: 3.5rem;
    font-weight: 900;
    color: #fff;
    line-height: 1.1;
    margin-bottom: var(--spacing-xs);
}

.home-stats .stat-label {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.85);
}

/* ==========================================
   首页：定制解决方案
   ========================================== */
.home-solutions {
    padding: var(--spacing-xl) 0;
    background: var(--bg-color);
}

.solutions-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.solutions-text h2 {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.solutions-text > p {
    font-size: 1.05rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.solutions-list {
    list-style: none;
    margin: 0 0 var(--spacing-lg) 0;
    padding: 0;
}

.solutions-list li {
    padding: 10px 0;
    font-size: 1rem;
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
}

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

.solutions-image img,
.solutions-image-placeholder {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

.solutions-image-placeholder {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
}

/* ==========================================
   首页：新闻动态
   ========================================== */
.home-news {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.news-card {
    background: var(--bg-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.news-thumbnail {
    aspect-ratio: 16/9;
    overflow: hidden;
}

.news-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.news-content {
    padding: var(--spacing-md);
}

.news-date {
    display: inline-block;
    font-size: 0.85rem;
    color: var(--text-lighter);
    margin-bottom: var(--spacing-xs);
}

.news-title {
    font-size: 1.15rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.news-title a {
    color: var(--text-color);
    text-decoration: none;
}

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

.news-excerpt {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.news-link {
    font-weight: 600;
    font-size: 0.9rem;
}

/* ==========================================
   首页：联系我们CTA
   ========================================== */
.home-contact-cta {
    padding: var(--spacing-xl) 0;
    background: var(--bg-color);
    border-top: 1px solid var(--border-color);
}

.contact-cta-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: var(--border-radius-lg);
    color: #fff;
}

.contact-cta-text h2 {
    color: #fff;
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.contact-cta-text p {
    color: rgba(255,255,255,0.9);
    font-size: 1.1rem;
}

.contact-cta-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.cta-info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
}

.cta-icon {
    font-size: 1.3rem;
}

.contact-cta-buttons {
    flex-shrink: 0;
}

.contact-cta-buttons .btn-white {
    display: inline-block;
    padding: 14px 36px;
    background: #fff;
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.05rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid #fff;
}

.contact-cta-buttons .btn-white:hover {
    background: transparent;
    color: #fff;
}

/* ==========================================
   返回顶部按钮
   ========================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
}

/* ==========================================
   响应式设计
   ========================================== */

/* 平板设备 */
@media (max-width: 1024px) {
    .intro-grid {
        grid-template-columns: 1fr;
    }

    .intro-image {
        order: -1;
    }

    .capabilities-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .value-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .solutions-wrapper {
        grid-template-columns: 1fr;
    }

    .solutions-image {
        order: -1;
    }

    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-cta-wrapper {
        flex-direction: column;
        text-align: center;
    }

    .contact-cta-info {
        flex-direction: row;
        justify-content: center;
    }

    .about-content-wrapper {
        grid-template-columns: 1fr;
    }

    .about-sidebar {
        position: static;
    }

    .contact-grid-page {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .contact-grid-page {
        grid-template-columns: 1fr;
    }
    
    .product-detail-grid {
        grid-template-columns: 1fr;
    }
    
    .product-gallery {
        position: static;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        order: -1;
    }
}

/* 移动设备 */
@media (max-width: 768px) {
    :root {
        --header-height: 60px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; }
    
    .menu-toggle {
        display: flex;
    }
    
    .main-navigation {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-color);
        padding: var(--spacing-md);
        transform: translateX(100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
        z-index: 999;
    }
    
    .main-navigation.active {
        transform: translateX(0);
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 0;
    }
    
    .nav-menu > .menu-item > a {
        padding: 14px 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-menu .sub-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: var(--spacing-md);
        background: transparent;
    }
    
    .header-cta {
        display: none;
    }
    
    .banner-slider {
        height: 400px;
    }
    
    .banner-title {
        font-size: 2rem;
    }
    
    .banner-description {
        font-size: 1rem;
    }
    
    .banner-controls {
        bottom: 20px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .features-grid,
    .testimonials-grid,
    .posts-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-section-home h2 {
        font-size: 1.8rem;
    }
    
    .page-banner {
        padding: 60px 0;
    }
    
    .page-banner h1 {
        font-size: 2rem;
    }
    
    .footer-widgets {
        grid-template-columns: 1fr;
    }

    .intro-title {
        font-size: 2rem;
    }

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

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

    .home-stats .stat-number {
        font-size: 2.5rem;
    }

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

/* 小屏手机 */
@media (max-width: 480px) {
    .banner-slider {
        height: 300px;
    }

    .banner-title {
        font-size: 1.6rem;
    }

    .btn-large {
        padding: 14px 28px;
        font-size: 1rem;
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-cta-wrapper {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .contact-cta-info {
        flex-direction: column;
        align-items: center;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .banner-slider {
        height: 300px;
    }
    
    .banner-title {
        font-size: 1.6rem;
    }
    
    .btn-large {
        padding: 14px 28px;
        font-size: 1rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}