/* ========================================
   创为铁路 - 河南创为铁路器材有限公司
   PbootCMS Professional Template v1.0
   ======================================== */

/* ========================================
   1. 变量定义 / CSS Variables
   ======================================== */
:root {
    /* 品牌色彩 */
    --primary-color: #165DFF;
    --primary-dark: #0F4DC4;
    --primary-light: #EBF2FF;
    --secondary-color: #36CFC9;
    --accent-color: #ff6b35;
    
    /* 中性色 */
    --text-primary: #1D2129;
    --text-secondary: #4E5969;
    --text-muted: #86909C;
    --text-light: #a0aec0;
    
    /* 背景色 */
    --bg-white: #ffffff;
    --bg-light: #f7fafc;
    --bg-gray: #edf2f7;
    --bg-dark: #2d3748;
    
    /* 边框 */
    --border-light: #e2e8f0;
    --border-gray: #cbd5e0;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* 字体 */
    --font-primary: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-code: 'SF Mono', 'Fira Code', monospace;
    
    /* 间距 */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* 过渡 */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* 导航高度 */
    --header-height: 80px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
}

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

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

a:hover {
    text-decoration: none !important;
    color: var(--primary-dark);
}

ul, ol {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ========================================
   3. 布局工具类 / Layout Utilities
   ======================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

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

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ========================================
   4. 组件样式 / Components
   ======================================== */

/* --- 按钮 --- */
.btn svg {
    flex-shrink: 0;
}

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

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

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

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

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

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

.btn-outline-white {
    background: transparent;
    color: white;
    border-color: white;
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* ========================================
   5. 头部导航 / Header & Navigation
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    /* backdrop-filter: blur(10px); */
    border-bottom: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

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

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.logo img {
    height: 48px;
    width: auto;
}

.nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: 0.5rem;
}

.nav-item {
    position: relative;
}

.nav-item > a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-primary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

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

/* 子菜单 */
.sub-nav {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
}

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

.sub-nav li a {
    display: block;
    padding: 0.625rem 1rem;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.sub-nav li a:hover {
    text-decoration: none;
    background: var(--bg-light);
    color: var(--primary-color);
}

/* 移动端菜单按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
}

/* 头部占位 */
.header-spacer {
    height: var(--header-height);
}

/* ========================================
   6. 首页内容 / Homepage Content
   ======================================== */

/* --- Hero轮播区 --- */
.hero {
    position: relative;
    height: 520px;
    overflow: hidden;
}

.hero-swiper,
.hero-swiper .swiper-wrapper,
.hero-swiper .swiper-slide {
    height: 100%;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(22, 93, 255, 0.85) 0%, rgba(15, 77, 196, 0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    padding-top: 15vh;
    color: white;
}

.hero-title-lead { font-size: clamp(1.5rem, 4vw, 3rem); font-weight: 700; line-height: 1.15; margin-bottom: var(--space-lg); text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2); color: #fff; }
.hero-title {
    font-size: clamp(1.5rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: var(--space-lg);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    opacity: 0.9;
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.hero .btn {
    animation: pulse-shadow 2s infinite;
    box-shadow: 0 4px 20px rgba(0, 82, 204, 0.4);
    font-size: 1.1rem;
    padding: 1rem 2.5rem;
    transition: all 0.3s ease;
}

.hero .btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 82, 204, 0.5);
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    text-align: center;
    opacity: 0.7;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* 轮播导航 */
.hero-prev,
.hero-next {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: white;
    transition: all var(--transition-normal);
}

.hero-prev:hover,
.hero-next:hover {
    background: white;
    color: var(--primary-color);
}

.hero-prev::after,
.hero-next::after {
    font-size: 1rem;
}

.hero-pagination {
    bottom: 30px !important;
}

.hero-pagination .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 1;
}

.hero-pagination .swiper-pagination-bullet-active {
    background: white;
}

/* --- 特色功能区 --- */
.features-section {
    padding: var(--space-4xl) 0;
    background: var(--bg-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.feature-item {
    text-align: center;
    padding: var(--space-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
}

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

.feature-item h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

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

/* --- 区域通用样式 --- */
.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-header-sm {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
}

.section-tagline {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary-color);
    margin-bottom: var(--space-sm);
}

.section-header h2,
.section-header-sm h2,
.section-header-sm h3 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-top: var(--space-sm);
}

.section-footer {
    margin-top: var(--space-2xl);
}

/* --- 公司简介区 --- */
.about-intro {
    padding: var(--space-4xl) 0;
    background: var(--bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-text .lead {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.about-stats {
    display: flex;
    gap: var(--space-2xl);
    margin-bottom: var(--space-xl);
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: var(--space-xs);
}

.about-image .image-frame {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    height: auto;
    aspect-ratio: 4/3;
    object-fit: cover;
}

.image-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: var(--primary-color);
    color: white;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
}

.image-badge strong {
    display: block;
    font-size: 1.75rem;
    line-height: 1;
}

.image-badge span {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* --- 产品展示区（本托布局） --- */
.products-showcase {
    padding: var(--space-4xl) 0;
    background: var(--bg-white);
}

/* 核心产品展示 - 一行4个，同等大小 */
.products-bento {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}


.bento-item {
    grid-column: span 1;
    grid-row: span 1;
}

.bento-item:nth-child(1),
.bento-item:nth-child(2),
.bento-item:nth-child(3),
.bento-item:nth-child(4) {
    grid-column: span 1;
    grid-row: span 1;
}

.product-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    height: 100%;
    display: flex;
    flex-direction: column;
}

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

.product-card-image {
    position: relative;
    overflow: hidden;
}

.product-card-image img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.product-card-content {
    padding: var(--space-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-category {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--primary-color);
    margin-bottom: var(--space-sm);
}

.product-card-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.product-card-content h3 a {
    color: inherit;
}

.product-card-content h3 a:hover {
    text-decoration: none;
    color: var(--primary-color);
}

.product-card-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    flex: 1;
}

.product-features-mini {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.product-features-mini span {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    background: var(--bg-light);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-weight: 500;
    color: var(--primary-color);
}

.link-arrow span {
    transition: transform var(--transition-fast);
}

.link-arrow:hover span {
    transform: translateX(4px);
}

/* --- 资质荣誉区 --- */
.honors-section {
    padding: var(--space-4xl) 0;
    background: var(--bg-light);
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.honor-item {
    text-align: center;
    padding: var(--space-xl);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.honor-image {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--space-lg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.honor-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.honor-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.honor-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* --- 客户评价区 --- */
.testimonials-section {
    padding: var(--space-4xl) 0;
    background: var(--bg-white);
}

.testimonial-swiper {
    max-width: 800px;
    margin: 0 auto;
}

.testimonial-item {
    text-align: center;
    padding: var(--space-xl);
}

.quote-icon {
    font-size: 4rem;
    color: var(--primary-light);
    line-height: 0.5;
    margin-bottom: var(--space-md);
}

.testimonial-item blockquote {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.testimonial-author {
    display: inline-flex;
    align-items: center;
    gap: var(--space-md);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-avatar span {
    color: white;
    font-weight: 600;
    font-size: 1.125rem;
}

.author-info {
    text-align: left;
}

.author-info h5 {
    font-size: 1rem;
    font-weight: 600;
}

.author-info span {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* --- CTA区 --- */
.cta-section {
    padding: var(--space-4xl) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.cta-content p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: var(--space-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
}

/* --- 新闻区 --- */
.news-section {
    padding: var(--space-4xl) 0;
    background: var(--bg-light);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.news-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.news-card a {
    color: inherit;
}

.news-image {
    display: block;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.news-content {
    padding: var(--space-lg);
}

.news-meta {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.news-category {
    color: var(--primary-color);
    font-weight: 500;
}

.news-content h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

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

.news-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.6;
}

.read-more {
    font-weight: 500;
    color: var(--primary-color);
}

/* ========================================
   7. 面包屑导航 / Breadcrumb
   ======================================== */
.breadcrumb-wrapper {
    background: var(--bg-light);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border-light);
}

.breadcrumb-light {
    background: var(--bg-white);
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    font-size: 0.875rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.breadcrumb li,
.breadcrumb-item {
    color: var(--text-muted);
}

.breadcrumb li a,
.breadcrumb-item a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

.breadcrumb li:not(:last-child)::after,
.breadcrumb-item:not(:last-child)::after {
    content: '/';
    margin: 0 var(--space-sm);
    color: var(--text-light);
}

.breadcrumb li.active,
.breadcrumb-item.active {
    color: var(--text-primary);
}

.breadcrumb span:not(:last-child)::after {
    content: '/';
    margin: 0 var(--space-sm);
    color: var(--text-light);
}

/* ========================================
   8. 页面头部 / Page Header
   ======================================== */
.page-header {
    padding: var(--space-3xl) 0;
    background: var(--bg-light);
    text-align: center;
}

.page-header-sm {
    padding: var(--space-2xl) 0;
}

.page-header-img {
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    color: white;
}

.page-header-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
}

.page-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 82, 204, 0.9) 0%, rgba(0, 61, 153, 0.8) 100%);
}

.page-header-content {
    position: relative;
    z-index: 1;
}

.page-tagline {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--primary-color);
    margin-bottom: var(--space-sm);
}

.page-header-img .page-tagline {
    color: rgba(255, 255, 255, 0.8);
}

.page-header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.page-header-img h1 {
    color: white;
}

.page-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.page-header-img p {
    color: rgba(255, 255, 255, 0.9);
}

/* ========================================
   9. 产品列表页 / Product List
   ======================================== */
.category-filter {
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--border-light);
}

.filter-tabs,
.filter-bar {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.filter-bar {
    justify-content: space-between;
}

.filter-tab,
.filter-item {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.filter-tab:hover,
.filter-item:hover,
.filter-tab.active,
.filter-item.active {
    background: var(--primary-color);
    color: white;
}

.filter-group {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.filter-search .search-input {
    display: flex;
    position: relative;
}

.filter-search input {
    width: 200px;
    padding: 0.5rem 1rem;
    padding-right: 2.5rem;
    border: 1px solid var(--border-gray);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.filter-search input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.filter-search .search-btn {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    padding: 0.25rem;
    color: var(--text-muted);
}

.product-list-main {
    padding: 0;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.product-card-featured {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.product-card-featured .product-category {
    color: rgba(255, 255, 255, 0.8);
}

.product-card-featured h3 a {
    color: white;
}

.product-card-featured p {
    color: rgba(255, 255, 255, 0.8);
}

.product-card-badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    background: var(--accent-color);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    z-index: 2;
}

.product-features {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.feature-tag {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
}

.product-card-featured .feature-tag {
    background: rgba(255, 255, 255, 0.2);
}

.product-card-footer {
    margin-top: auto;
}

/* 分页 */
.pagination-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-lg);
    margin-top: var(--space-3xl);
}

/* 分页链接样式 */
.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    min-height: 40px;
    padding: 0 12px;
    margin: 0 4px;
    border: 1px solid #E5E6EB;
    border-radius: 4px;
    background: #fff;
    color: #1D2129;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.25s ease;
}

/* 分页页码容器 */
.pagination-pages {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 10px;
}

/* 分页首页/上一页/下一页/尾页链接 */
.pagination-pages a:first-child,
.pagination-pages a:nth-child(2),
.pagination-pages a:nth-last-child(2),
.pagination-pages a:last-child {
    min-width: 50px;
}
}

.pagination a:hover {
    border-color: #165DFF;
    color: #165DFF;
    background: #F2F3F5;
}

.pagination span.current {
    background: #165DFF;
    border-color: #165DFF;
    color: #fff;
}

.pagination .disabled {
    color: #C9CDD4;
    cursor: not-allowed;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: var(--space-4xl) var(--space-lg);
}

.empty-state-icon {
    font-size: 48px;
    color: var(--text-light);
    margin-bottom: var(--space-lg);
}

.empty-state-icon::before {
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
}

.empty-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    color: var(--text-light);
}

.empty-state h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.empty-state p {
    color: var(--text-secondary);
}

/* CTA卡片 */
.product-cta {
    padding: var(--space-2xl) 0 var(--space-4xl);
}

.cta-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
    padding: var(--space-2xl);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-xl);
    color: white;
}

.cta-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.cta-card p {
    opacity: 0.9;
}

/* ========================================
   10. 产品详情页 / Product Detail
   ======================================== */
.product-detail-main {
    padding: var(--space-3xl) 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
}

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

.gallery-main {
    background: var(--bg-light);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: var(--space-md);
}

.gallery-main img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: contain;
}

.gallery-thumbs {
    display: flex;
    gap: var(--space-sm);
}

.thumb-item {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
}

.thumb-item:hover,
.thumb-item.active {
    border-color: var(--primary-color);
}

.thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail-info {
    padding-top: var(--space-lg);
}

.product-detail-header {
    margin-bottom: var(--space-xl);
}

.product-detail-category {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: var(--space-sm);
}

.product-detail-header h1 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.product-detail-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.product-detail-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--border-light);
}

.product-meta-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

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

.meta-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-xs);
}

.meta-value {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
}

.meta-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-light);
    color: var(--primary-color);
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

.product-highlights {
    margin-bottom: var(--space-xl);
}

.product-highlights h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.product-highlights ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.product-highlights li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.check-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
}

.product-actions {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.product-share {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-light);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

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

/* 详情标签页 */
.product-detail-content {
    padding: var(--space-3xl) 0;
    background: var(--bg-light);
}

.detail-tabs {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.tabs-header {
    display: flex;
    border-bottom: 1px solid var(--border-light);
}

.tab-btn {
    flex: 1;
    padding: var(--space-lg) var(--space-md);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    color: var(--primary-color);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tabs-content {
    padding: var(--space-2xl);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

.product-description {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.product-description img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: var(--space-lg) 0;
}

.product-description p {
    margin-bottom: var(--space-md);
}

/* 参数表格 */
.params-table-wrapper {
    overflow-x: auto;
}

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

.params-table th,
.params-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.params-table th {
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-light);
}

.params-table td {
    color: var(--text-secondary);
}

.params-table tr:hover td {
    background: var(--bg-light);
}

/* 应用案例 */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.case-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.case-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.case-info h4 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.case-info p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.case-year {
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 500;
}

/* 相关产品推荐 */
.related-products {
    padding: var(--space-3xl) 0;
    background: white;
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

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

.related-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.related-image {
    display: block;
}

.related-image img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
}

.related-info {
    padding: var(--space-md);
}

.related-category {
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 500;
}

.related-info h4 {
    font-size: 0.95rem;
    margin-top: 0.25rem;
}

.related-info h4 a {
    color: var(--text-primary);
}

.related-info h4 a:hover {
    text-decoration: none;
    color: var(--primary-color);
}

/* 产品咨询区 */
.product-cta-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-light);
}

.cta-block {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xl);
    padding: var(--space-2xl);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.cta-block h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.cta-block p {
    color: var(--text-secondary);
}

.cta-block-actions {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.cta-phone span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.cta-phone a {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.125rem;
}

/* ========================================
   11. 新闻列表页 / News List
   ======================================== */
.news-filter {
    padding: 0;
    background: white;
    border-bottom: 1px solid var(--border-light);
}

.news-list-main {
    padding: var(--space-3xl) 0;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.news-card-featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.news-card-featured .news-image img {
    aspect-ratio: unset;
    height: 100%;
}

.news-card-featured .news-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-xl);
}

.news-card-featured .news-meta {
    flex-direction: column;
    gap: var(--space-sm);
}

.news-card-featured .news-date {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.news-card-featured .date-day {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.news-card-featured .date-ym {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.news-card-featured h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.news-card-featured h2 a {
    color: var(--text-primary);
}

.news-card-featured h2 a:hover {
    text-decoration: none;
    color: var(--primary-color);
}

.news-card-horizontal {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 0;
}

.news-card-horizontal .news-image img {
    aspect-ratio: 16/10;
    height: 100%;
}

/* 订阅区 */
.newsletter-section {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.newsletter-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2xl);
    flex-wrap: wrap;
}

.newsletter-text h3 {
    font-size: 1.75rem;
    margin-bottom: var(--space-xs);
}

.newsletter-text p {
    opacity: 0.9;
}

.newsletter-form {
    display: flex;
    gap: var(--space-sm);
}

.newsletter-form input {
    width: 280px;
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: var(--radius-full);
    font-size: 0.95rem;
}

.newsletter-form input::placeholder {
    color: var(--text-light);
}

/* ========================================
   12. 新闻详情页 / News Detail
   ======================================== */
.article-header {
    padding: var(--space-3xl) 0 var(--space-xl);
    text-align: center;
}

.article-meta-top {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.article-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-light);
    color: var(--primary-color);
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.article-date {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.article-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
    max-width: 800px;
    margin: 0 auto var(--space-md);
    line-height: 1.3;
}

.article-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto var(--space-lg);
}

.article-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.article-cover {
    max-width: 900px;
    margin: var(--space-2xl) auto 0;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.article-cover img {
    width: 100%;
    aspect-ratio: 21/9;
    object-fit: cover;
}

.article-content {
    padding: var(--space-2xl) 0 var(--space-4xl);
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--space-3xl);
}

.article-body {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.article-body p {
    margin-bottom: var(--space-lg);
}

.article-body h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--space-2xl) 0 var(--space-md);
}

.article-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--space-xl) 0 var(--space-md);
}

.article-body img {
    max-width: 100%;
    border-radius: var(--radius-lg);
    margin: var(--space-lg) 0;
}

.article-body ul,
.article-body ol {
    margin-bottom: var(--space-lg);
    padding-left: var(--space-xl);
}

.article-body li {
    margin-bottom: var(--space-sm);
}

.article-tags {
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-light);
}

.tags-label {
    font-weight: 500;
    color: var(--text-primary);
    margin-right: var(--space-sm);
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bg-light);
    color: var(--text-secondary);
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    margin-right: var(--space-sm);
    margin-bottom: var(--space-sm);
}

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

.article-share {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-light);
}

/* 上下篇导航 */
.article-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    margin-top: var(--space-3xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--border-light);
}

.article-nav-prev {
    text-align: left;
}

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

.nav-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-xs);
}

.nav-title {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
}

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

/* 侧边栏 */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.sidebar-widget {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.widget-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--primary-color);
}

.widget-list li {
    margin-bottom: var(--space-sm);
}

.widget-list li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

.widget-list li a:hover {
    text-decoration: none;
    color: var(--primary-color);
}

.widget-list .list-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.widget-list .list-date {
    font-size: 0.75rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

.widget-list-hot li a {
    align-items: flex-start;
}

.list-rank {
    width: 24px;
    height: 24px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    margin-right: var(--space-sm);
    flex-shrink: 0;
}

.widget-list-hot li:first-child .list-rank {
    background: var(--primary-color);
    color: white;
}

.widget-categories li {
    margin-bottom: var(--space-sm);
}

.widget-categories li a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
}

.widget-categories li a:hover {
    text-decoration: none;
    color: var(--primary-color);
}

.cat-count {
    padding: 0.125rem 0.5rem;
    background: var(--bg-white);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 弹窗 */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    text-align: center;
    max-width: 400px;
    width: 90%;
    position: relative;
}

.modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

.modal p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.qrcode-placeholder {
    width: 200px;
    height: 200px;
    margin: 0 auto;
}

.qrcode-placeholder img {
    width: 100%;
    height: 100%;
}

/* ========================================
   13. 关于我们页 / About Page
   ======================================== */
.about-intro-section {
    padding: var(--space-4xl) 0;
    background: var(--bg-white);
}

.about-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-intro-content h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    line-height: 1.3;
}

.about-text {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.about-text p {
    margin-bottom: var(--space-md);
}

.about-features-row {
    display: flex;
    gap: var(--space-xl);
}

.about-features-row .feature-item {
    text-align: center;
}

.about-features-row .feature-icon {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
}

.about-features-row h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.about-features-row p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

.about-intro-image img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
}

/* 发展历程时间线 */
.timeline-section {
    padding: var(--space-4xl) 0;
    background: var(--bg-light);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--border-gray);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 0 var(--space-xl) var(--space-2xl);
}

.timeline-item:nth-child(odd) {
    margin-left: 0;
    padding-right: var(--space-2xl);
    text-align: right;
}

.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-left: var(--space-2xl);
}

.timeline-item::before {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border: 4px solid white;
    border-radius: 50%;
    top: 0.5rem;
}

.timeline-item:nth-child(odd)::before {
    right: -8px;
}

.timeline-item:nth-child(even)::before {
    left: -8px;
}

.timeline-year {
    display: inline-block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--space-sm);
}

.timeline-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.timeline-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 企业文化 */
.culture-section {
    padding: var(--space-4xl) 0;
    background: var(--bg-white);
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.culture-card {
    text-align: center;
    padding: var(--space-2xl);
    background: var(--bg-light);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
}

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

.culture-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
}

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

.culture-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.culture-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 团队介绍 */
.team-section {
    padding: var(--space-4xl) 0;
    background: var(--bg-light);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.team-member {
    text-align: center;
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.member-photo {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--space-lg);
    border-radius: 50%;
    overflow: hidden;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.member-photo span {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.team-member h4 {
    font-size: 1.125rem;
    font-weight: 600;
}

.member-role {
    font-size: 0.875rem;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.member-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 合作伙伴 */
.partners-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-white);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-lg);
}

.partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.partner-logo:hover {
    background: var(--primary-light);
    color: var(--primary-color);
}

/* 关于页CTA */
.about-cta {
    padding: var(--space-3xl) 0;
    background: var(--bg-light);
}

/* ========================================
   14. 联系我们页 / Contact Page
   ======================================== */
.contact-cards {
    padding: var(--space-2xl) 0 0;
    background: white;
}

.contact-cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
    margin-bottom: calc(var(--space-3xl) * -1);
    position: relative;
    z-index: 1;
}

.contact-card {
    text-align: center;
    padding: var(--space-2xl);
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.contact-card:hover {
    transform: translateY(-5px);
}

.contact-card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-lg);
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.contact-card h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.contact-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--space-xs);
}

.contact-value a {
    color: inherit;
}

.contact-note {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.contact-main {
    padding: calc(var(--space-4xl) + var(--space-xl)) 0 var(--space-3xl);
    background: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: var(--space-2xl);
}

.contact-form-section {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-sm);
}

.form-header {
    margin-bottom: var(--space-xl);
    text-align: center;
}

.form-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.form-header p {
    color: var(--text-secondary);
}

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

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-gray);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

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

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

.form-captcha .captcha-input {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.form-captcha input {
    flex: 1;
}

.captcha-img {
    height: 44px;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.form-actions {
    text-align: center;
}

.form-actions .btn {
    min-width: 200px;
}

/* 侧边栏 */
.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.map-container {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    background: var(--bg-white);
}

.map-container iframe {
    display: block;
}

.contact-tips,
.business-hours {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
}

.contact-tips h4,
.business-hours h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--primary-color);
}

.contact-tips ul li,
.business-hours ul li {
    padding: var(--space-sm) 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-light);
}

.contact-tips ul li:last-child,
.business-hours ul li:last-child {
    border-bottom: none;
}

.business-hours ul li {
    display: flex;
    justify-content: space-between;
}

/* FAQ */
.faq-section {
    padding: var(--space-3xl) 0 var(--space-4xl);
    background: var(--bg-light);
}

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

.faq-item {
    background: white;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    text-align: left;
}

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

.faq-icon {
    font-size: 1.25rem;
    color: var(--primary-color);
    transition: transform var(--transition-normal);
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
}

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

.faq-item.open .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   15. 底部 / Footer
   ======================================== */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding-top: var(--space-3xl);
}

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

.footer a:hover {
    text-decoration: none;
    color: white;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
    padding-bottom: var(--space-3xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    margin-bottom: var(--space-md);
}

.footer-logo img {
    height: 40px;
    width: auto;
}

.footer-about {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: var(--space-md);
    color: rgba(255, 255, 255, 0.6);
}

.footer-contact-mini {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-contact-mini span {
    font-size: 0.9rem;
}

.footer-nav h4,
.footer-products h4 {
    font-size: 1rem;
    font-weight: 600;
    color: white;
    margin-bottom: var(--space-lg);
}

.footer-nav ul li,
.footer-products ul li {
    margin-bottom: var(--space-sm);
}

.footer-nav ul li a,
.footer-products ul li a {
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.qrcode-wrap {
    width: 100px;
    height: 100px;
    background: white;
    border-radius: var(--radius-md);
    padding: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.footer-qrcode p {
    font-size: 0.875rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg) 0;
    font-size: 0.875rem;
}

.copyright {
    display: flex;
    gap: var(--space-lg);
}

.footer-links {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.divider {
    color: rgba(255, 255, 255, 0.3);
}

/* ========================================
   16. 404页面 / Error Page
   ======================================== */
.error-page {
    padding: var(--space-4xl) 0;
    text-align: center;
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.error-content {
    max-width: 600px;
    margin: 0 auto;
}

.error-code {
    font-size: 8rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--space-md);
    color: var(--primary-color);
}

.error-code .digit {
    display: inline-block;
}

.error-code .digit-0 {
    color: var(--accent-color);
}

.error-page h1 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.error-page > p {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.error-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-2xl);
}

.error-sitemap h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.quick-links {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-xl);
}

.quick-links li a {
    padding: 0.5rem 1rem;
    background: var(--bg-light);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
}

.error-search p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.search-form {
    max-width: 400px;
    margin: 0 auto;
}

.search-input-lg {
    display: flex;
    position: relative;
}

.search-input-lg input {
    width: 100%;
    padding: 0.875rem 1.25rem;
    padding-right: 3rem;
    border: 2px solid var(--border-gray);
    border-radius: var(--radius-full);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.search-input-lg input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.search-input-lg .search-btn {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    padding: 0.5rem;
    color: var(--primary-color);
}

/* 产品列表4列网格布局 */
.product-list-main .news-list-main {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-list-main .product-card,
.product-list-main .product-card-horizontal {
    display: flex;
    flex-direction: column;
    margin-bottom: 0;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.product-list-main .product-card:hover,
.product-list-main .product-card-horizontal:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.product-list-main .product-card-horizontal {
    flex-direction: column;
}

.product-list-main .product-card .news-image,
.product-list-main .product-card-horizontal .news-image {
    width: 100%;
    height: 180px;
    flex: none;
    background: #f8f8f8;
}

.product-list-main .product-card .news-image img,
.product-list-main .product-card-horizontal .news-image img {
    object-fit: contain;
    padding: 12px;
}

.product-list-main .product-card .news-content,
.product-list-main .product-card-horizontal .news-content {
    padding: 16px;
}

.product-list-main .product-card .news-content h2,
.product-list-main .product-card-horizontal .news-content h3 {
    font-size: 15px;
    margin-bottom: 8px;
}

.product-list-main .product-card .news-date,
.product-list-main .product-card-horizontal .news-date {
    display: none;
}

.product-list-main .product-card .news-excerpt,
.product-list-main .product-card-horizontal .news-excerpt {
    display: none;
}

.product-list-main .read-more {
    display: none;
}

@media (max-width: 1200px) {
    .product-list-main .news-list-main {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .product-list-main .news-list-main {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .product-list-main .news-list-main {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   UI/UX 增强改进
   ======================================== */

/* 色彩对比度修复 */
:root {
    --accent-dark: #e55a2b;
    --accent-light: #fff4f0;
    --text-on-dark: #f7fafc;
    --text-on-light: #1a202c;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
}

/* 辅助色使用 - CTA按钮 */
.btn-accent {
    background: var(--accent-color);
    color: white;
}

.btn-accent:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
}

/* 渐变背景 */
.gradient-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.gradient-accent {
    background: linear-gradient(135deg, var(--accent-color) 0%, #ff8c5a 100%);
}

.gradient-dark {
    background: linear-gradient(180deg, #1a202c 0%, #2d3748 100%);
}

/* 按钮交互增强 */
.btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn::before {
    content: ";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 82, 204, 0.25);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 82, 204, 0.2);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
}

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

/* 卡片悬浮效果 */
.card-hover {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* 产品卡片增强 */
.product-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 32px rgba(0, 82, 204, 0.15);
}

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

.product-card-image {
    overflow: hidden;
}

.product-card-image img {
    transition: transform 0.5s ease;
}

/* 新闻卡片增强 */
.news-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

/* 链接悬浮效果 */
a {
    transition: all var(--transition-fast);
}

.nav-item > a:hover {
    text-decoration: none;
    letter-spacing: 0.5px;
    color: var(--primary-color);
    background: var(--primary-light);
}

/* 表单元素增强 */
input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.15);
}

/* 焦点可见性 - 无障碍 */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 触摸目标优化 - 最小48x48dp */
@media (max-width: 767px) {
    .btn {
        min-height: 48px;
        padding: 12px 24px;
    }
    
    .nav-item > a {
        min-height: 48px;
        display: flex;
        align-items: center;
    }
    
    .footer-nav ul li a,
    .footer-products ul li a {
        min-height: 48px;
        display: inline-flex;
        align-items: center;
        padding: 8px 16px;
    }
    
    .page-link {
        min-width: 48px;
        min-height: 48px;
    }
    
    .tab-btn {
        min-height: 48px;
    }
}

/* 滚动动画基础 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 加载动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* 脉冲动画 - 用于CTA按钮 */
/* 按钮脉冲阴影动画 */
@keyframes pulse-shadow {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(0, 82, 204, 0.4);
    }
    50% {
        box-shadow: 0 4px 30px rgba(0, 82, 204, 0.6);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.4);
    }
    50% {
        box-shadow: 0 0 0 12px rgba(255, 107, 53, 0);
    }
}

.btn-pulse {
    animation: pulse 2s infinite;
}

/* 色彩对比度修复 - 浅色背景上的文字 */
.text-on-light {
    color: var(--text-primary) !important;
}

.hero-subtitle,
.section-header p {
    color: var(--text-secondary);
}

/* 深色背景上的文字对比度 */
.footer {
    color: var(--text-on-dark);
}

.footer a {
    color: rgba(255, 255, 255, 0.85);
}

.footer a:hover {
    text-decoration: none;
    color: white;
}

/* 骨架屏加载效果 */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* ========================================
   14. 解决方案页 / Solutions Page
   ======================================== */

/* 解决方案卡片 */
.solution-card {
    display: block;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.solution-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 32px rgba(0, 82, 204, 0.15);
}

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

.solution-card-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.solution-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.solution-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--space-md);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
}

.solution-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary-color);
    color: white;
    font-size: 0.75rem;
    border-radius: var(--radius-full);
}

.solution-card-content {
    padding: var(--space-lg);
}

.solution-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.solution-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.solution-features {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.feature-tag {
    display: inline-block;
    padding: 2px 8px;
    background: var(--bg-light);
    color: var(--text-secondary);
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

.solution-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.875rem;
}

.solution-link span {
    transition: transform 0.2s ease;
}

.solution-card:hover .solution-link span {
    transform: translateX(4px);
}

/* 解决方案网格 */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

@media (max-width: 991px) {
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .solutions-grid {
        grid-template-columns: 1fr;
    }
}

/* 解决方案详情页 */
.solution-detail {
    padding: var(--space-3xl) 0;
}

.solution-hero-image {
    width: 100%;
    height: 400px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-xl);
}

.solution-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@media (max-width: 767px) {
    .solution-hero-image {
        height: 250px;
    }
}

.solution-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: var(--space-xl);
}

.solution-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.solution-meta-item i {
    color: var(--primary-color);
}

.solution-meta-item a {
    color: var(--primary-color);
}

.solution-meta-item a:hover {
    text-decoration: none;
    
}

/* 解决方案内容区 */
.solution-content {
    font-size: 1rem;
    line-height: 1.8;
}

.solution-content h2 {
    font-size: 1.5rem;
    margin: var(--space-xl) 0 var(--space-md);
    color: var(--text-primary);
}

.solution-content h3 {
    font-size: 1.25rem;
    margin: var(--space-lg) 0 var(--space-sm);
    color: var(--text-primary);
}

.solution-content p {
    margin-bottom: var(--space-md);
}

/* 相关解决方案 */
.related-solutions {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.related-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    transition: background 0.2s ease;
}

.related-item:hover {
    background: var(--bg-light);
}

.related-item-image {
    width: 80px;
    height: 60px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.related-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-item-content h5 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 筛选区域 */
.filter-section {
    padding: var(--space-lg) 0;
    background: var(--bg-light);
    margin-bottom: var(--space-xl);
}

.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    align-items: center;
}

.filter-tab {
    display: inline-flex;
    align-items: center;
    padding: var(--space-sm) var(--space-lg);
    background: var(--bg-white);
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-light);
    transition: all 0.2s ease;
}

.filter-tab:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

@media (max-width: 767px) {
    .filter-bar {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: var(--space-sm);
        -webkit-overflow-scrolling: touch;
    }
    
    .filter-tab {
        white-space: nowrap;
        flex-shrink: 0;
    }
}

/* 解决方案区块 - 首页 */
.solutions-showcase {
    padding: var(--space-3xl) 0;
    background: var(--bg-light);
}
/* ========================================
   产品详情页 - 铁路电气化设备专用
   ======================================== */

/* 产品详情主区域 */
.product-detail-section {
    padding: var(--space-2xl) 0;
    background: var(--bg-white);
}

.product-detail-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

/* 图片展示 */
.product-image-panel {
    position: sticky;
    top: calc(var(--header-height) + var(--space-lg));
}

.detail-sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--space-xl));
}

.detail-sidebar .category-nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.detail-sidebar .category-item {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
}

.detail-sidebar .category-link {
    padding: var(--space-sm) var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

@media (max-width: 991px) {
    .product-detail-container {
        grid-template-columns: 1fr;
    }
    
    .product-image-panel {
        position: static;
    }
    
    .detail-sidebar {
        position: static;
        margin-bottom: var(--space-xl);
    }
    
    .detail-sidebar .category-nav {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-sm);
    }
}

.product-main-image {
    position: relative;
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-md);
}

.product-main-image img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
}

.image-badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    background: var(--primary-color);
    color: white;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

.product-thumbnails {
    display: flex;
    gap: var(--space-sm);
    overflow-x: auto;
}

.thumb-item {
    flex-shrink: 0;
    width: 80px;
    height: 60px;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
}

.thumb-item:hover,
.thumb-item.active {
    border-color: var(--primary-color);
}

.thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 产品信息 */
.product-info-panel {
    padding: var(--space-lg) 0;
}

.product-header {
    margin-bottom: var(--space-xl);
}

.product-category-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--primary-light);
    color: var(--primary-color);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
}

.tag-icon {
    font-size: 1rem;
}

.product-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: var(--space-sm);
}

.product-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.product-description {
    background: var(--bg-light);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xl);
    border-left: 4px solid var(--primary-color);
}

.product-description p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 核心参数速览 */
.core-specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.spec-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.spec-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

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

.spec-content {
    display: flex;
    flex-direction: column;
}

.spec-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-color);
}

.spec-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* 产品特点 */
.product-features {
    margin-bottom: var(--space-xl);
    padding: var(--space-lg);
    background: var(--bg-white);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.features-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.title-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #10b981;
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.features-list li {
    position: relative;
    padding-left: var(--space-lg);
    color: var(--text-secondary);
    line-height: 1.6;
}

.features-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 认证标识 */
.certifications {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.cert-badge {
    padding: var(--space-xs) var(--space-md);
    background: var(--bg-light);
    color: var(--text-secondary);
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

/* 行动按钮 */
.product-actions {
    display: flex;
    gap: var(--space-md);
}

.product-actions .btn {
    flex: 1;
}

/* 技术参数区域 */
.tech-specs-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-gray);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.title-underline {
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    margin: 0 auto;
    border-radius: var(--radius-full);
}

/* 参数Tab */
.specs-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.spec-tab-btn {
    padding: var(--space-md) var(--space-xl);
    background: var(--bg-white);
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-light);
    transition: all var(--transition-fast);
}

.spec-tab-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.spec-tab-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.spec-tab-content {
    display: none;
}

.spec-tab-content.active {
    display: block;
}

/* 参数表格 */
.specs-table-wrapper {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

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

.specs-table thead {
    background: var(--primary-color);
    color: white;
}

.specs-table th {
    padding: var(--space-lg);
    font-weight: 600;
    text-align: left;
}

.specs-table tbody tr {
    border-bottom: 1px solid var(--border-light);
    transition: background var(--transition-fast);
}

.specs-table tbody tr:hover {
    background: var(--bg-light);
}

.specs-table tbody tr:last-child {
    border-bottom: none;
}

.spec-name {
    padding: var(--space-lg);
    color: var(--text-secondary);
    width: 40%;
    font-weight: 500;
}

.spec-value {
    padding: var(--space-lg);
    color: var(--text-primary);
}

.spec-value.highlight {
    color: var(--primary-color);
    font-weight: 700;
    font-size: 1.125rem;
}

/* 产品详情内容 */
.product-content-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-white);
}

.product-content-body {
    background: var(--bg-light);
    padding: var(--space-2xl);
    border-radius: var(--radius-lg);
}

.product-content-body h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin: var(--space-xl) 0 var(--space-md);
}

.product-content-body h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin: var(--space-lg) 0 var(--space-md);
}

.product-content-body h4 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin: var(--space-md) 0 var(--space-sm);
}

.product-content-body p {
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.product-content-body ul,
.product-content-body ol {
    margin-bottom: var(--space-md);
    padding-left: var(--space-xl);
}

.product-content-body li {
    margin-bottom: var(--space-sm);
    line-height: 1.6;
}

.product-content-body img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: var(--space-lg) 0;
}

.product-content-body table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-lg) 0;
}

.product-content-body table th,
.product-content-body table td {
    padding: var(--space-md);
    border: 1px solid var(--border-gray);
    text-align: left;
}

.product-content-body table th {
    background: var(--primary-light);
    font-weight: 600;
}

/* 应用场景 */
.application-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-gray);
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.application-card {
    background: var(--bg-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.app-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.application-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.application-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 咨询区块 */
.inquiry-section {
    padding: var(--space-3xl) 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.inquiry-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-xl);
}

.inquiry-info h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.inquiry-info p {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.6;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.contact-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-color);
}

.inquiry-form h4 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

.inquiry-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.inquiry-form input,
.inquiry-form textarea {
    width: 100%;
    padding: var(--space-md);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    transition: border-color var(--transition-fast);
}

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

.inquiry-form textarea {
    margin-bottom: var(--space-md);
    resize: vertical;
}

.btn-block {
    width: 100%;
}

/* 相关产品 */
.related-section {
    padding: var(--space-3xl) 0;
    background: var(--bg-white);
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.related-card {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

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

.related-image {
    display: block;
    aspect-ratio: 4/3;
    overflow: hidden;
}

.related-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

.related-info {
    padding: var(--space-md);
}

.related-category {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.related-info h4 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-top: var(--space-xs);
}

.related-info h4 a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.related-info h4 a:hover {
    text-decoration: none;
    color: var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .product-detail-container {
        grid-template-columns: 1fr;
    }
    
    .product-image-panel {
        position: static;
    }
    
    .detail-sidebar {
        position: static;
        margin-bottom: var(--space-xl);
    }
    
    .detail-sidebar .category-nav {
        display: flex;
        flex-wrap: wrap;
        gap: var(--space-sm);
        padding: var(--space-md);
    }
    
    .detail-sidebar .category-item {
        border: 1px solid var(--border-light);
        border-radius: var(--radius-md);
    }
    
    .detail-sidebar .category-link {
        padding: var(--space-sm) var(--space-md);
    }
    
    .application-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .inquiry-card {
        grid-template-columns: 1fr;
    }
    
    .related-products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product-title {
        font-size: 1.5rem;
    }
    
    .core-specs-grid {
        grid-template-columns: 1fr;
    }
    
    .specs-tabs {
        flex-wrap: wrap;
    }
    
    .spec-tab-btn {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.875rem;
    }
    
    .application-grid {
        grid-template-columns: 1fr;
    }
    
    .related-products-grid {
        grid-template-columns: 1fr;
    }
    
    .inquiry-form .form-row {
        grid-template-columns: 1fr;
    }
    
    .product-actions {
        flex-direction: column;
    }
}

/* 详情页左侧分类导航 */
.detail-sidebar {
    position: sticky;
    top: calc(var(--header-height) + var(--space-lg));
    height: fit-content;
}

.sidebar-category {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    margin-bottom: var(--space-lg);
}

.detail-sidebar .sidebar-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg);
    background: var(--primary-color);
    color: white;
    font-size: 1rem;
    font-weight: 600;
}

.detail-sidebar .category-nav {
    padding: var(--space-sm) 0;
}

.detail-sidebar .category-item {
    border-bottom: 1px solid var(--border-light);
}

.detail-sidebar .category-item:last-child {
    border-bottom: none;
}

.detail-sidebar .category-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.detail-sidebar .category-link:hover {
    background: var(--bg-gray);
    color: var(--primary-color);
}

.detail-sidebar .category-item.active .category-link {
    background: var(--primary-light);
    color: var(--primary-color);
    font-weight: 500;
    border-left: 3px solid var(--primary-color);
}

.detail-sidebar .category-icon {
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
}

.detail-sidebar .category-item.active .category-icon {
    transform: rotate(90deg);
}

.detail-sidebar .category-name {
    flex: 1;
}

.detail-sidebar .category-count {
    font-size: 0.8rem;
    color: var(--text-muted);
    background: var(--bg-gray);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.detail-sidebar .category-item.active .category-count {
    background: var(--primary-color);
    color: white;
}

.detail-sidebar .sidebar-contact {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    color: white;
}

.detail-sidebar .sidebar-contact h4 {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: var(--space-sm);
}

.detail-sidebar .contact-tel {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
}

.detail-sidebar .contact-time {
    font-size: 0.85rem;
    opacity: 0.8;
    margin-bottom: var(--space-md);
}

.detail-sidebar .btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

.detail-content {
    min-width: 0;
}


/* Hero按钮箭头动画 */
.hero .btn-arrow {
    display: inline-block;
    transition: transform 0.3s ease;
    margin-left: 0.5rem;
}

.hero .btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 30px rgba(0, 82, 204, 0.5);
} .btn-arrow {
    transform: translateX(5px);
}

/* ========================================
   产品列表页样式
   ======================================== */

/* 产品布局 */
.products-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

@media (max-width: 991px) {
    .products-layout {
        grid-template-columns: 1fr;
    }
}

/* 侧边栏 */
.sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.sidebar-title {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-link {
    display: flex;
    align-items: center;
    padding: 0.875rem 1.25rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    transition: all 0.2s ease;
    text-decoration: none;
}

.sidebar-link:last-child {
    border-bottom: none;
}

.sidebar-link:hover,
.sidebar-link.active {
    background: var(--primary-light);
    color: var(--primary-color);
}

.sidebar-link.active {
    font-weight: 600;
    border-left: 3px solid var(--primary-color);
}

/* 联系卡片 */
.contact-box {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 12px;
    padding: 1.5rem;
    color: white;
    text-align: center;
}

.contact-title {
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.contact-phone {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.contact-time {
    font-size: 0.75rem;
    opacity: 0.75;
    margin-bottom: 1rem;
}

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

/* 产品网格 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

@media (max-width: 767px) {
    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1rem;
    }
}

/* 产品卡片 */
.products-section .product-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.products-section .product-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 12px 40px rgba(0, 82, 204, 0.15);
    transform: translateY(-5px);
}

.products-section .product-img {
    position: relative;
    overflow: hidden;
    height: 200px;
    background: var(--bg-light);
}

.products-section .product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.products-section .product-card:hover .product-img img {
    transform: scale(1.05);
}

.products-section .product-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.products-section .product-content {
    padding: 1.25rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.products-section .product-category {
    font-size: 0.8rem;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.products-section .product-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.products-section .product-title a {
    color: inherit;
    text-decoration: none;
}

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

.products-section .product-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.products-section .product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.products-section .product-views {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.products-section .product-link {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.875rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
}

.products-section .product-link:hover {
    
}

/* 空状态 */
.products-section .empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 12px;
}

.products-section .empty-state-icon {
    font-size: 48px;
    color: var(--text-light);
    margin-bottom: var(--space-lg);
}

.products-section .empty-state-icon::before {
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
}

.products-section .empty-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.products-section .empty-state h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.products-section .empty-state p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* ========================================
   产品分类页样式（与详情页一致）
   ======================================== */

.products-section {
    padding: 0;
    margin-top: 0;
}

.products-section .product-wrap {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 24px;
    align-items: start;
}

@media (max-width: 991px) {
    .products-section .product-wrap {
        grid-template-columns: 1fr;
    }
}

.products-section .sidebar-left {
    position: sticky;
    top: 20px;
}

.products-section .contact-box {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 12px;
    padding: 20px;
    color: #fff;
    text-align: center;
    margin-top: 16px;
}

.products-section .contact-box h5 {
    color: #fff;
    font-size: 14px;
    margin-bottom: 12px;
}

.products-section .contact-tel {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
}

.products-section .contact-time {
    font-size: 12px;
    opacity: 0.8;
    margin-bottom: 12px;
}

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

.products-section .product-main {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    overflow: hidden;
}

/* 产品列表页 - 左侧边栏与右侧产品列表等高 */
.products-section .row {
    align-items: stretch;
}

.products-section .col-lg-3,
.products-section .col-md-4 {
    display: flex;
    flex-direction: column;
}

.products-section .col-lg-3 > .sidebar-card,
.products-section .col-md-4 > .sidebar-card {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.products-section .col-lg-3 > .sidebar-card .sidebar-header,
.products-section .col-md-4 > .sidebar-card .sidebar-header {
    flex-shrink: 0;
}

.products-section .col-lg-3 > .sidebar-card .sidebar-item,
.products-section .col-md-4 > .sidebar-card .sidebar-item {
    flex-shrink: 0;
}

.products-section .col-lg-3 > .contact-card,
.products-section .col-md-4 > .contact-card {
    margin-top: auto;
}

/* 确保右侧产品网格填满高度 */
.products-section .col-lg-9 > .product-grid,
.products-section .col-md-8 > .product-grid {
    flex: 1;
}

.products-section .product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 0 24px 24px;
}

@media (max-width: 767px) {
    .products-section .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1rem;
        padding: 16px;
    }
}

.products-section .product-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.products-section .product-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 12px 40px rgba(0, 82, 204, 0.15);
    transform: translateY(-5px);
}

.products-section .product-card-img {
    position: relative;
    overflow: hidden;
    height: 200px;
    background: var(--bg-light);
}

.products-section .product-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.products-section .product-card:hover .product-card-img img {
    transform: scale(1.05);
}

.products-section .product-card-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.products-section .product-card-body {
    padding: 1.25rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.products-section .product-card-category {
    font-size: 12px;
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.products-section .product-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.products-section .product-card-title a {
    color: inherit;
    text-decoration: none;
}

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

.products-section .product-card-text {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 1rem;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.products-section .product-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.products-section .product-card-price {
    font-size: 13px;
    color: var(--text-muted);
}

.products-section .product-card-link {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 13px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
}

.products-section .product-card-link:hover {
    
}

/* ========================================
   通用侧边栏样式
   ======================================== */

/* 产品分类侧边栏 */
.sidebar-left {
    position: sticky;
    top: 20px;
}

.sidebar-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.sidebar-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 14px 16px;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-title {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 14px 16px;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 13px;
    text-decoration: none;
    transition: all 0.2s;
}

.sidebar-item:last-child {
    border-bottom: none;
}

.sidebar-item:hover {
    background: var(--primary-light);
    color: var(--primary-color);
}

.sidebar-item.active {
    background: var(--primary-light);
    color: var(--primary-color);
    font-weight: 600;
    border-left: 3px solid var(--primary-color);
}

/* 联系卡片 */
.contact-box {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 12px;
    padding: 20px;
    color: #fff;
    text-align: center;
}

.contact-box h5 {
    color: #fff;
    font-size: 14px;
    margin-bottom: 12px;
}

.contact-tel {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
}

.contact-time {
    font-size: 12px;
    opacity: 0.8;
    margin-bottom: 12px;
}

.btn-block {
    display: block;
    width: 100%;
}
/* ========================================
   全站统一模块样式 v2.0
   工业铁路风格 - 2026版
   ======================================== */

/* ========== 按钮规范 ========== */
/* 主按钮 - 咨询/选型 */

/* 次按钮 - 查看更多 */
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 120px;
    height: 36px;
    padding: 0 20px;
    background: #FFFFFF;
    color: #165DFF;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid #165DFF;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}
.btn-secondary:hover {
    background: #EBF2FF;
    color: #0F4DC4;
    border-color: #0F4DC4;
    text-decoration: none;
}

/* 按钮尺寸变体 */
.btn-sm {
    min-width: 100px;
    height: 32px;
    font-size: 13px;
    padding: 0 16px;
}
.btn-lg {
    min-width: 160px;
    height: 48px;
    font-size: 15px;
    padding: 0 28px;
}

/* ========== 产品卡片模块 ========== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin: 0;
}

.product-card {
    background: #FFFFFF;
    border: 1px solid #E5E6EB;
    border-radius: 4px;
    overflow: hidden;
    transition: all 0.25s ease;
}
.product-card:hover {
    border-color: #165DFF;
    box-shadow: 0 4px 12px rgba(22, 93, 255, 0.1);
}

.product-card-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: #F2F3F5;
}
.product-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}
.product-card:hover .product-card-image img {
    transform: scale(1.02);
}

.product-card-content {
    padding: 16px;
}

.product-card-title {
    font-size: 16px;
    font-weight: 500;
    color: #1D2129;
    margin-bottom: 8px;
    line-height: 1.4;
}

.product-card-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}
.product-tag {
    display: inline-block;
    padding: 2px 8px;
    background: #EBF2FF;
    color: #165DFF;
    font-size: 12px;
    border-radius: 2px;
}

.product-card-link {
    display: inline-block;
    color: #165DFF;
    font-size: 14px;
    text-decoration: none;
}
.product-card-link:hover {
    
    color: #0F4DC4;
}

/* ========== 客户评价模块 ========== */
.testimonial-list {
    display: grid;
    gap: 24px;
}

.testimonial-item {
    background: #F2F3F5;
    border-left: 4px solid #165DFF;
    padding: 20px 24px;
    border-radius: 0 4px 4px 0;
}

.testimonial-content {
    font-size: 15px;
    color: #4E5969;
    line-height: 1.7;
    margin-bottom: 16px;
}

.testimonial-meta {
    text-align: right;
}
.testimonial-unit {
    font-size: 14px;
    color: #1D2129;
    font-weight: 500;
}
.testimonial-name {
    font-size: 13px;
    color: #86909C;
}

/* ========== 新闻动态模块 ========== */
.news-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.news-item {
    display: flex;
    align-items: flex-start;
    padding: 16px 0;
    border-bottom: 1px solid #E5E6EB;
}
.news-item:last-child {
    border-bottom: none;
}

.news-date {
    flex-shrink: 0;
    width: 80px;
    font-size: 14px;
    color: #86909C;
    text-align: left;
}

.news-title {
    flex: 1;
    font-size: 15px;
    color: #1D2129;
    font-weight: 500;
    line-height: 1.5;
}
.news-title a {
    color: inherit;
    text-decoration: none;
}
.news-title a:hover {
    text-decoration: none;
    color: #165DFF;
}

.news-excerpt {
    font-size: 14px;
    color: #86909C;
    margin-top: 4px;
    line-height: 1.5;
}

/* ========== 资质荣誉模块 ========== */
.honor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.honor-item {
    text-align: center;
    padding: 20px;
}

.honor-image {
    width: 120px;
    height: 120px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #F2F3F5;
    border-radius: 4px;
    overflow: hidden;
}
.honor-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.honor-name {
    font-size: 14px;
    color: #1D2129;
    font-weight: 500;
}

/* ========== 链接规范 ========== */
a {
    color: #165DFF;
    text-decoration: none;
    transition: color 0.2s ease;
}
a:hover {
    text-decoration: none;
    
    color: #0F4DC4;
}

/* ========== 排版规范 ========== */
h1 { font-size: 36px; font-weight: 700; line-height: 1.2; color: #1D2129; }
h2 { font-size: 24px; font-weight: 600; line-height: 1.3; color: #1D2129; }
h3 { font-size: 18px; font-weight: 500; line-height: 1.4; color: #1D2129; }
h4 { font-size: 16px; font-weight: 500; line-height: 1.4; color: #1D2129; }

.text-primary { color: #1D2129; }
.text-secondary { color: #4E5969; }
.text-muted { color: #86909C; }
.text-accent { color: #165DFF; }

.bg-light { background-color: #F2F3F5; }
.bg-white { background-color: #FFFFFF; }

/* ========== 模块间距 ========== */
.module-section {
    padding: 40px 0;
}
.module-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== 卡片通用 ========== */
.card {
    background: #FFFFFF;
    border: 1px solid #E5E6EB;
    border-radius: 4px;
}

/* ========== 响应式（1200px以上） ========== */
@media (min-width: 1200px) {
    .container {
        max-width: 1200px;
    }
}

/* ========================================
   产品详情页 - product-section 布局修复
   ======================================== */

/* 主布局：两栏式 - Column1在左，Column2+Column3在右 */
.product-section .product-wrap-two-col {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 20px;
    align-items: start;
}

/* 右侧区域：包含Column2(产品信息)和Column3(技术参数) */
.product-section .product-right-col {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 20px;
    align-items: start;
}

/* Column 2: 产品信息 */
.product-section .product-info-col {
    grid-column: 1;
}

/* Column 3: 技术参数 */
.product-section .product-tech-col {
    grid-column: 2;
}

/* 产品行：三列（标题 + 图片 + 咨询） */
.product-section .product-row {
    display: grid;
    grid-template-columns: 1fr 1.2fr 280px;
    gap: 20px;
    align-items: start;
}

/* 产品信息列（标题） */
.product-section .product-info-col {
    display: flex;
    flex-direction: column;
}

/* 左侧边栏 */
.product-section .sidebar-left {
    position: sticky;
    top: 100px;
}

.product-section .sidebar-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    overflow: hidden;
    margin-bottom: 16px;
}

.product-section .sidebar-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    padding: 14px 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-section .sidebar-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-bottom: 1px solid var(--border-light);
    transition: all 0.2s;
}

.product-section .sidebar-item:last-child {
    border-bottom: none;
}

.product-section .sidebar-item:hover,
.product-section .sidebar-item.active {
    background: var(--primary-light);
    color: var(--primary-color);
}

.product-section .contact-box {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 12px;
    padding: 20px;
    color: #fff;
    text-align: center;
}

.product-section .contact-box h5 {
    color: #fff;
    font-size: 14px;
    margin-bottom: 12px;
}

.product-section .contact-tel {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
}

.product-section .contact-time {
    font-size: 12px;
    opacity: 0.8;
    margin-bottom: 12px;
}

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

/* 中间主内容区 */
.product-section .product-main {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    overflow: hidden;
}

.product-section .product-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
}

.product-section .product-badge {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
}

.product-section .product-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.product-section .product-model {
    font-size: 14px;
    color: var(--text-muted);
}

/* 产品主图 + 咨询 在同一行 */
.product-section .product-row {
    display: flex;
    gap: 20px;
    padding: 20px 24px;
}

/* 产品图片 */
.product-section .product-gallery {
    flex: 1;
}

.product-section .main-img-box {
    position: relative;
    background: var(--bg-gray);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    text-align: center;
}

.product-section .main-img-box img {
    max-width: 100%;
    height: auto;
    display: inline-block;
}

.product-section .img-zoom-hint {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.6);
    color: #fff;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
}

/* 产品详情页新布局 - 图片居中 */
.product-section .product-header-section {
    margin-bottom: 2rem;
}

.product-section .product-gallery-centered {
    text-align: center;
    margin-bottom: 2rem;
}

.product-section .product-gallery-centered .main-img-box {
    display: inline-block;
    text-align: left;
    max-width: 600px;
}

.product-section .product-gallery-centered .thumb-row {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 15px;
}

.product-section .product-gallery-centered .thumb-item {
    cursor: pointer;
    border: 2px solid transparent;
}

.product-section .product-gallery-centered .thumb-item.active,
.product-section .product-gallery-centered .thumb-item:hover {
    border-color: var(--primary-color);
}

/* 右侧咨询卡片 - 与左侧菜单顶部对齐 */
.product-section .sidebar-right {
    width: 280px;
    flex-shrink: 0;
    position: sticky;
    top: 100px;
    align-self: stretch;
    display: flex;
    flex-direction: column;
    gap: 20px;
    min-height: 100%;
}

/* 右侧边栏内的技术参数 */
.product-section .tech-section-sidebar {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    overflow: hidden;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-section .tech-section-sidebar .tech-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    padding: 14px 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-section .tech-section-sidebar .tech-body {
    padding: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-section .tech-section-sidebar .tech-group {
    margin-bottom: 16px;
}

.product-section .tech-section-sidebar .tech-group:last-child {
    margin-bottom: 0;
}

.product-section .tech-section-sidebar .tech-group-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.product-section .tech-section-sidebar .tech-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.product-section .tech-section-sidebar .tech-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 10px;
    background: var(--bg-light);
    border-radius: 6px;
    font-size: 13px;
}

.product-section .tech-section-sidebar .tech-item-label {
    color: var(--text-secondary);
}

.product-section .tech-section-sidebar .tech-item-val {
    font-weight: 600;
    color: var(--text-primary);
}

.product-section .tech-section-sidebar .tech-item-val.highlight {
    color: var(--primary-color);
}

/* 右侧边栏内的FAQ */
.product-section .sidebar-right .faq-section {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    overflow: hidden;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-section .sidebar-right .faq-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    padding: 14px 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-section .sidebar-right .faq-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
}

.product-section .sidebar-right .faq-item:last-child {
    border-bottom: none;
}

.product-section .sidebar-right .faq-q {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.product-section .sidebar-right .faq-a {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.product-section .summary-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    overflow: hidden;
}

.product-section .summary-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    padding: 14px 16px;
    font-weight: 600;
}

.product-section .summary-body {
    padding: 16px;
}

.product-section .summary-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.6;
}

.product-section .summary-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.product-section .summary-meta div {
    margin-bottom: 4px;
}

.product-section .summary-btn {
    display: block;
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: #fff;
    text-align: center;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    text-decoration: none;
    transition: background 0.2s;
}

.product-section .summary-btn:hover {
    background: var(--primary-dark);
    color: #fff;
}

.product-section .summary-btn-outline {
    background: #fff;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.product-section .summary-btn-outline:hover {
    background: var(--primary-light);
}

/* 核心参数 */
.product-section .params-section {
    padding: 20px 24px;
    border-top: 1px solid var(--border-light);
}

.product-section .section-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-section .section-title i {
    color: var(--primary-color);
}

.product-section .params-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.product-section .param-card {
    background: var(--bg-light);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
}

.product-section .param-icon {
    width: 36px;
    height: 36px;
    background: var(--primary-light);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 8px;
}

.product-section .param-val {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.product-section .param-label {
    font-size: 12px;
    color: var(--text-muted);
}

/* 产品优势 */
.product-section .advantage-section {
    padding: 20px 24px;
    border-top: 1px solid var(--border-light);
}

.product-section .adv-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.product-section .adv-card {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px;
    background: var(--bg-light);
    border-radius: 8px;
}

.product-section .adv-icon {
    width: 28px;
    height: 28px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    flex-shrink: 0;
}

.product-section .adv-text {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* 认证标签 */
.product-section .cert-section {
    padding: 16px 24px;
    border-top: 1px solid var(--border-light);
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.product-section .cert-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    font-size: 12px;
    color: var(--text-secondary);
}

.product-section .cert-tag i {
    color: var(--primary-color);
}

/* 产品详情页内的技术参数 - 放在产品信息下方，宽度一致 */
.product-section .tech-section-product {
    background: #fff;
    border-top: 1px solid var(--border-light);
    padding: 20px 24px;
}

.product-section .tech-section-product .tech-header {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-section .tech-section-product .tech-header i {
    color: var(--primary-color);
}

.product-section .tech-section-product .tech-group {
    margin-bottom: 16px;
}

.product-section .tech-section-product .tech-group:last-child {
    margin-bottom: 0;
}

.product-section .tech-section-product .tech-group-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.product-section .tech-section-product .tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.product-section .tech-section-product .tech-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    background: var(--bg-light);
    border-radius: 6px;
    font-size: 13px;
}

.product-section .tech-section-product .tech-item-label {
    color: var(--text-secondary);
}

.product-section .tech-section-product .tech-item-val {
    font-weight: 600;
    color: var(--text-primary);
}

.product-section .tech-section-product .tech-item-val.highlight {
    color: var(--primary-color);
}

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

/* 技术参数 */
.product-section .tech-section {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    margin-top: 20px;
    overflow: hidden;
}

.product-section .tech-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    padding: 14px 20px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-section .tech-body {
    padding: 20px;
}

.product-section .tech-group {
    margin-bottom: 20px;
}

.product-section .tech-group:last-child {
    margin-bottom: 0;
}

.product-section .tech-group-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-section .tech-group-title i {
    color: var(--primary-color);
}

.product-section .tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.product-section .tech-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 12px;
    background: var(--bg-light);
    border-radius: 6px;
}

.product-section .tech-item-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.product-section .tech-item-val {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}

.product-section .tech-item-val.highlight {
    color: var(--primary-color);
    font-weight: 700;
}

/* FAQ */
.product-section .faq-section {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    margin-top: 20px;
    padding: 20px;
}

.product-section .faq-header {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-section .faq-header i {
    color: var(--primary-color);
}

.product-section .faq-item {
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 12px;
    margin-bottom: 12px;
}

.product-section .faq-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.product-section .faq-q {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.product-section .faq-a {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* FAQ 全宽横铺布局 */
.faq-section-fullwidth {
    background: var(--bg-light);
    padding: 40px 0;
    margin-top: 0;
}

.faq-section-fullwidth .faq-header {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.faq-section-fullwidth .faq-header i {
    color: var(--primary-color);
}

.faq-section-fullwidth .faq-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.faq-section-fullwidth .faq-item {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.faq-section-fullwidth .faq-q {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.faq-section-fullwidth .faq-a {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

@media (max-width: 991px) {
    .faq-section-fullwidth .faq-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

/* 技术参数 + FAQ 两栏平铺 */
.tech-faq-section-fullwidth {
    background: var(--bg-light);
    padding: 40px 0;
}

.tech-faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.tech-section-fullwidth {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.tech-section-fullwidth .tech-header {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tech-section-fullwidth .tech-header i {
    color: var(--primary-color);
}

.tech-section-fullwidth .tech-group {
    margin-bottom: 20px;
}

.tech-section-fullwidth .tech-group:last-child {
    margin-bottom: 0;
}

.tech-section-fullwidth .tech-group-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.tech-section-fullwidth .tech-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tech-section-fullwidth .tech-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    background: var(--bg-light);
    border-radius: 6px;
    font-size: 14px;
}

.tech-section-fullwidth .tech-item-label {
    color: var(--text-secondary);
}

.tech-section-fullwidth .tech-item-val {
    font-weight: 600;
    color: var(--text-primary);
}

.tech-section-fullwidth .tech-item-val.highlight {
    color: var(--primary-color);
}

.tech-faq-section-fullwidth .faq-section-fullwidth {
    background: #fff;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.tech-faq-section-fullwidth .faq-section-fullwidth .faq-header {
    margin-bottom: 20px;
}

.tech-faq-section-fullwidth .faq-section-fullwidth .faq-item {
    background: var(--bg-light);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 12px;
}

.tech-faq-section-fullwidth .faq-section-fullwidth .faq-item:last-child {
    margin-bottom: 0;
}

@media (max-width: 991px) {
    .tech-faq-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* 相关产品 */
.product-section .related-section {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    margin-top: 20px;
    overflow: hidden;
}

/* 相关产品全宽横铺布局 */
.related-section-fullwidth {
    background: var(--bg-light);
    padding: 40px 0;
    margin-top: 0;
}

.related-section-fullwidth .related-header {
    padding: 0 0 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.125rem;
}

.related-section-fullwidth .related-header span {
    display: flex;
    align-items: center;
}

.related-section-fullwidth .related-header a {
    font-size: 14px;
    color: var(--primary-color);
    text-decoration: none;
}

.related-section-fullwidth .related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.related-section-fullwidth .related-card {
    display: block;
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
    text-decoration: none;
}

.related-section-fullwidth .related-card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    transform: translateY(-4px);
}

.related-section-fullwidth .related-card img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.related-section-fullwidth .related-card-info {
    padding: 16px;
}

.related-section-fullwidth .related-card-info h4 {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
}

.related-section-fullwidth .related-model {
    font-size: 13px;
    color: var(--primary-color);
}

@media (max-width: 991px) {
    .related-section-fullwidth .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .related-section-fullwidth .related-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .related-section-fullwidth .related-card img {
        height: 120px;
    }
}

.product-section .related-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
}

.product-section .related-header span {
    display: flex;
    align-items: center;
}

.product-section .related-header a {
    font-size: 13px;
    color: var(--primary-color);
    text-decoration: none;
}

.product-section .related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    padding: 16px;
}

.product-section .related-card {
    display: block;
    text-decoration: none;
    color: inherit;
}

.product-section .related-card img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 6px;
    background: var(--bg-light);
}

.product-section .related-card-info {
    padding: 10px 0;
}

.product-section .related-card-info h4 {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.product-section .related-model {
    font-size: 12px;
    color: var(--primary-color);
}

/* 响应式：两栏布局适配 */
@media (max-width: 1200px) {
    .product-section .product-wrap-two-col {
        grid-template-columns: 220px 1fr;
    }
    
    .product-section .product-right-col {
        grid-template-columns: 1fr 280px;
    }
    
    .product-section .params-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-section .adv-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 991px) {
    .product-section .product-wrap-two-col {
        grid-template-columns: 1fr;
    }
    
    .product-section .product-right-col {
        grid-template-columns: 1fr;
    }
    
    .product-section .sidebar-left {
        position: static;
    }
    
    .product-section .product-row {
        grid-template-columns: 1fr;
    }
    
    .product-section .product-tech-col {
        width: 100%;
    }
    
    .product-section .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product-section .params-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .product-section .adv-grid {
        grid-template-columns: 1fr;
    }
    
    .product-section .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .product-section .related-grid {
        grid-template-columns: 1fr 1fr;
    }
}
.product-section {
    padding: 2rem 0;
}

.product-section .product-wrap {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 24px;
    align-items: start;
}

.product-section .sidebar-left {
    position: sticky;
    top: 100px;
}

.product-section .sidebar-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    overflow: hidden;
    margin-bottom: 16px;
}

.product-section .sidebar-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: #fff;
    padding: 14px 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-section .sidebar-header i {
    font-size: 14px;
}

.product-section .sidebar-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-bottom: 1px solid var(--border-light);
    transition: all 0.2s;
}

.product-section .sidebar-item:last-child {
    border-bottom: none;
}

.product-section .sidebar-item:hover,
.product-section .sidebar-item.active {
    background: var(--primary-light);
    color: var(--primary-color);
}

.product-section .contact-box {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 12px;
    padding: 20px;
    color: #fff;
    text-align: center;
}

.product-section .contact-box h5 {
    color: #fff;
    font-size: 14px;
    margin-bottom: 12px;
}

.product-section .contact-tel {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
}

.product-section .contact-time {
    font-size: 12px;
    opacity: 0.8;
    margin-bottom: 12px;
}

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

.product-section .product-main {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    overflow: hidden;
}

/* 响应式 */
@media (max-width: 991px) {
    .product-section .product-wrap {
        grid-template-columns: 1fr;
    }
    
    .product-section .sidebar-left {
        position: static;
    }
}
/* 分页样式修复 */


.pagination-wrapper span {
    display: inline-block !important;
    margin: 0 3px !important;
}

.pagination-wrapper span a {
    display: inline-block !important;
    min-width: 40px !important;
    height: 40px !important;
    line-height: 40px !important;
    padding: 0 12px !important;
    margin: 0 2px !important;
    border: 1px solid #ddd !important;
    border-radius: 4px !important;
    background: #fff !important;
    color: #333 !important;
    text-decoration: none !important;
    font-size: 14px !important;
}

.pagination-wrapper span a:hover {
    border-color: #165DFF !important;
    color: #165DFF !important;
    background: #f5f5f5 !important;
}

.pagination-wrapper .page-num-current {
    background: #165DFF !important;
    border-color: #165DFF !important;
    color: #fff !important;
}

.pagination-wrapper .page-status {
    margin-right: 15px !important;
    color: #666;
}

.pagination-info {
    margin-top: 15px;
    color: #666;
    font-size: 14px;
}

.pagination-wrapper span{display:inline-block;margin:0 3px}
.pagination-wrapper span a{display:inline-block;min-width:40px;height:40px;line-height:40px;padding:0 12px;margin:0 2px;border:1px solid #ddd;border-radius:4px;background:#fff;color:#333;text-decoration:none;font-size:14px}
.pagination-wrapper span a:hover{border-color:#165DFF;color:#165DFF;background:#f5f5f5}
.pagination-wrapper .page-num-current{background:#165DFF!important;border-color:#165DFF!important;color:#fff!important}
.pagination-info{margin-top:15px;color:#666;font-size:14px}