/* 水利闸门网站通用样式 */
/* 遵循SEO优化要求，确保加载速度和用户体验 */

/* CSS变量定义 */
:root {
    --primary-color: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #0ea5e9;
    --accent-color: #dc2626;
    --accent-hover: #b91c1c;
    --text-dark: #0f172a;
    --text-medium: #334155;
    --text-light: #64748b;
    --bg-light: #f1f5f9;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

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

ul, ol {
    list-style: none;
}

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

/* 联系信息条 */
.contact-bar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--secondary-color) 100%);
    color: var(--bg-white);
    padding: 14px 0;
    font-size: 0.95rem;
    position: relative;
    overflow: hidden;
}

.contact-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 1;
}

.contact-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
    gap: 20px;
    position: relative;
    z-index: 1;
}

.contact-bar-left,
.contact-bar-right {
    display: flex;
    align-items: center;
    gap: 15px;
    white-space: nowrap;
}

.contact-bar a {
    color: var(--bg-white);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.1);
}

.contact-bar a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
}

.contact-bar span {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.1);
}

.contact-bar .separator {
    margin: 0 5px;
    opacity: 0.4;
    font-weight: 300;
}

@media (max-width: 768px) {
    .contact-bar {
        padding: 12px 0;
        font-size: 0.9rem;
    }
    
    .contact-bar .container {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .contact-bar-left,
    .contact-bar-right {
        justify-content: center;
        gap: 10px;
    }
    
    .contact-bar a,
    .contact-bar span {
        padding: 5px 10px;
    }
    
    .contact-bar .separator {
        margin: 0 5px;
    }
}

/* 导航栏 */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 75px;
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.5px;
}

.logo i {
    font-size: 1.8rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo a {
    color: inherit;
}

.logo span {
    color: var(--accent-color);
}

.nav-menu {
    display: flex;
    gap: 35px;
}

.nav-menu a {
    font-size: 1rem;
    color: var(--text-medium);
    font-weight: 600;
    position: relative;
    padding: 8px 0;
    transition: var(--transition);
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    transition: var(--transition);
    border-radius: 2px;
}

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

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

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* 英雄区域 */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--secondary-color) 100%);
    color: var(--bg-white);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 3rem;
    margin-bottom: 25px;
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-text p {
    font-size: 1.25rem;
    margin-bottom: 35px;
    opacity: 0.95;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

/* 联系信息框 */
.hero-contact {
    display: flex;
    justify-content: center;
}

.contact-box {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 40px;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    gap: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(5px);
}

.contact-item i {
    font-size: 1.8rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
}

.contact-item h4 {
    font-size: 0.95rem;
    margin-bottom: 6px;
    opacity: 0.9;
    font-weight: 500;
}

.contact-item a,
.contact-item span {
    color: var(--bg-white);
    font-weight: 700;
    font-size: 1.1rem;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.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-primary {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    color: var(--bg-white);
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-hover) 0%, #991b1b 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.4);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--primary-color);
    box-shadow: var(--shadow);
}

.btn-secondary:hover {
    background: var(--bg-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.btn i {
    font-size: 1.1em;
}

/* 区块样式 */
.section {
    padding: 80px 0;
}

.section-light {
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

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

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

.section-header::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    margin: 20px auto 0;
    border-radius: 2px;
}

.section-title {
    font-size: 2.25rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 700;
}

.section-subtitle {
    color: var(--text-light);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto;
}

/* 产品网格 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.product-card {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.15);
    border-color: var(--primary-light);
}

.product-image {
    width: 100%;
    overflow: hidden;
    background: var(--bg-light);
}

.product-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
    transition: var(--transition);
}

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

.product-card-content {
    padding: 20px 0;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card h3 {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: var(--text-dark);
    font-weight: 600;
    text-align: center;
}

.product-card h3 a {
    color: inherit;
    transition: var(--transition);
}

.product-card h3 a:hover {
    color: var(--primary-color);
}

.product-card p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.6;
    text-align: left;
    flex: 1;
}

.product-card .btn {
    margin-top: auto;
    width: 100%;
    text-align: center;
}

.product-meta {
    background: var(--bg-light);
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 3px solid var(--primary-color);
}

.product-meta span {
    display: block;
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.6;
}

.product-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 15px;
    width: 100%;
}

.product-actions .btn {
    padding: 10px 16px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 6px;
    transition: var(--transition);
    min-width: 110px;
    max-width: 150px;
    text-align: center;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (min-width: 769px) {
    .product-actions {
        flex-wrap: nowrap;
        gap: 12px;
    }
    
    .product-actions .btn {
        padding: 12px 20px;
        font-size: 0.9rem;
        min-width: 120px;
        max-width: none;
        flex: 1;
    }
}

@media (min-width: 1024px) {
    .product-actions .btn {
        padding: 14px 24px;
        font-size: 1rem;
        min-width: 130px;
    }
}

.product-actions .btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--bg-white);
}

.product-actions .btn-primary:hover {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 95, 180, 0.3);
}

.product-actions .btn-secondary {
    background: var(--bg-light);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.product-actions .btn-secondary:hover {
    background: var(--primary-color);
    color: var(--bg-white);
    transform: translateY(-2px);
}

/* 产品头部区域 */
.product-header {
    background: linear-gradient(135deg, var(--bg-light) 0%, #e8f4ff 100%);
    padding: 40px 0;
    border-bottom: 1px solid var(--border-color);
}

.product-title {
    font-size: 2.25rem;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 30px;
    font-weight: 700;
}

.product-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: var(--bg-white);
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.meta-item i {
    font-size: 1.2rem;
    color: var(--primary-color);
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(30, 64, 175, 0.1);
    border-radius: 50%;
}

.meta-item span {
    font-size: 0.95rem;
    color: var(--text-medium);
}

.meta-item a {
    color: var(--primary-color);
    font-weight: 600;
}

/* 产品详情区域 */
.product-detail-section {
    padding: 60px 0;
    background: var(--bg-white);
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.product-image-gallery {
    background: var(--bg-light);
    border-radius: 16px;
    padding: 30px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.main-image {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
}

.product-main-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    transition: var(--transition);
}

.product-main-image:hover {
    transform: scale(1.02);
}

.product-info {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.section-subtitle {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    font-weight: 700;
    position: relative;
    padding-bottom: 10px;
}

.section-subtitle::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.product-description {
    font-size: 1.05rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 30px;
}

.feature-list {
    list-style: none;
    margin: 25px 0 30px;
}

.feature-list li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 15px;
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.6;
    transition: var(--transition);
}

.feature-list li:hover {
    transform: translateX(5px);
    color: var(--text-medium);
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(30, 64, 175, 0.1);
    border-radius: 50%;
    top: 2px;
}

.contact-cta {
    display: flex;
    gap: 20px;
    margin-top: 40px;
}

/* 新产品详情样式 */
.product-detail {
    margin-bottom: 50px;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.detail-image-container {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.detail-image {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    max-width: 800px;
    width: 100%;
}

.detail-image .product-image {
    width: 100%;
    max-width: 800px;
    max-height: 600px;
    aspect-ratio: 4/3;
    object-fit: cover;
    transition: all 0.3s ease;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
    .detail-image .product-image {
        max-height: 450px;
    }
}

@media (max-width: 480px) {
    .detail-image .product-image {
        max-height: 300px;
    }
}

.detail-image:hover .product-image {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.detail-content {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.detail-content h2 {
    font-size: 1.8rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 12px;
}

.detail-content h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.detail-content h3 {
    font-size: 1.4rem;
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 15px;
}

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

.detail-content ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.detail-content ul li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 12px;
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.6;
    transition: var(--transition);
}

.detail-content ul li:hover {
    transform: translateX(5px);
    color: var(--text-medium);
}

.detail-content ul li i {
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 1.2rem;
    top: 2px;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(30, 64, 175, 0.1);
    border-radius: 50%;
}

/* 产品规格样式 */
.product-specs {
    margin-bottom: 50px;
}

.specs-table-wrapper {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    border: 1px solid var(--border-color);
}

/* 应用场景样式 */
.application-scenarios {
    margin-bottom: 40px;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.scenario-item {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 25px 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.scenario-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    border-color: var(--primary-light);
}

.scenario-item i {
    font-size: 1.8rem;
    color: var(--primary-color);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.1) 0%, rgba(14, 165, 233, 0.1) 100%);
    border-radius: 50%;
    flex-shrink: 0;
}

.scenario-item .scenario-content {
    flex: 1;
}

.scenario-item h4 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 600;
}

.scenario-item p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.5;
    margin: 0;
}

/* 系统组成样式 */
.system-components {
    margin-bottom: 40px;
}

.components-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.component-item {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 25px 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.component-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    border-color: var(--secondary-color);
}

.component-item i {
    font-size: 1.8rem;
    color: var(--secondary-color);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(30, 64, 175, 0.1) 100%);
    border-radius: 50%;
    flex-shrink: 0;
}

.component-item .component-content {
    flex: 1;
}

.component-item h4 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 600;
}

.component-item p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* 相关产品样式 */
.related-products {
    margin-bottom: 50px;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.product-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.15);
    border-color: var(--primary-light);
}

.product-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
}

.product-icon i {
    font-size: 2rem;
    color: var(--bg-white);
}

.product-card h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 12px;
    font-weight: 600;
}

.product-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 20px;
}

.product-card .btn {
    width: 100%;
}

/* 联系我们样式 */
.contact-section {
    margin-bottom: 30px;
}

/* 技术参数区域 */
.product-specs-section {
    padding: 60px 0;
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.section-title {
    font-size: 2rem;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 40px;
    font-weight: 700;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.specs-table-container {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

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

.specs-table thead {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--bg-white);
}

.specs-table th {
    padding: 18px 20px;
    text-align: left;
    font-weight: 600;
    font-size: 1rem;
}

.specs-table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s;
}

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

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

.specs-table td {
    padding: 16px 20px;
    font-size: 0.95rem;
    color: var(--text-medium);
}

.specs-table td:first-child {
    font-weight: 600;
    color: var(--text-dark);
    background: rgba(30, 64, 175, 0.03);
    width: 25%;
}

/* 适用场景区域 */
.application-section {
    padding: 60px 0;
    background: var(--bg-white);
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.application-item {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.application-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.application-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.1) 0%, rgba(14, 165, 233, 0.1) 100%);
    border-radius: 50%;
    margin: 0 auto 20px;
}

.application-item h4 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 600;
}

.application-item p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* 系统组成区域 */
.system-section {
    padding: 60px 0;
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.system-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.system-item {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.system-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--secondary-color);
}

.system-item i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(30, 64, 175, 0.1) 100%);
    border-radius: 50%;
    margin: 0 auto 20px;
}

.system-item h4 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 600;
}

.system-item p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
}

/* 选择优势区域 */
.advantages-section {
    margin-bottom: 40px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.advantage-item {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 25px 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.advantage-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    border-color: var(--primary-light);
}

.advantage-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.advantage-icon i {
    font-size: 1.2rem;
    color: var(--bg-white);
}

.advantage-item .advantage-content {
    flex: 1;
}

.advantage-item h3 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 600;
}

.advantage-item p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.5;
    margin: 0;
}

/* 相关产品区域 */
.related-products-section {
    padding: 60px 0;
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.related-product-item {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.related-product-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.related-product-item .product-image {
    height: 200px;
    overflow: hidden;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

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

.related-product-item h3 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin: 20px 20px 10px;
    font-weight: 600;
    text-align: center;
}

.related-product-item p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0 20px 20px;
    line-height: 1.6;
    text-align: center;
}

.related-product-item .btn {
    display: block;
    margin: 0 20px 20px;
    text-align: center;
}

/* 联系我们区域 */
.contact-section {
    padding: 60px 0;
    background: var(--bg-white);
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.contact-card {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.contact-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.contact-card h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 600;
}

.contact-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.contact-card a {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .product-main-image {
        height: 400px;
    }
    
    .application-grid,
    .system-grid,
    .advantages-grid,
    .related-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .product-info {
        padding: 30px;
    }
}

@media (max-width: 768px) {
    .product-title {
        font-size: 1.75rem;
    }
    
    .product-meta {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .product-main-image {
        height: 300px;
    }
    
    .detail-image .product-image {
        max-width: 100%;
        aspect-ratio: 8/6;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 20px;
    }
    
    .product-info {
        padding: 25px;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-subtitle {
        font-size: 1.2rem;
    }
    
    .contact-cta {
        flex-direction: column;
        gap: 15px;
    }
    
    .contact-cta .btn {
        width: 100%;
    }
    
    .application-grid,
    .system-grid,
    .advantages-grid,
    .related-products-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .application-item,
    .system-item,
    .advantage-item,
    .contact-card {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .product-header {
        padding: 30px 0;
    }
    
    .product-title {
        font-size: 1.5rem;
    }
    
    .product-detail-section,
    .product-specs-section,
    .application-section,
    .system-section,
    .advantages-section,
    .related-products-section,
    .contact-section {
        padding: 40px 0;
    }
    
    .product-image-gallery {
        padding: 20px;
    }
    
    .product-main-image {
        height: 250px;
    }
    
    .product-info {
        padding: 20px;
    }
    
    .specs-table th,
    .specs-table td {
        padding: 12px 15px;
        font-size: 0.85rem;
    }
    
    .application-item,
    .system-item,
    .advantage-item,
    .contact-card {
        padding: 25px 15px;
    }
    
    .application-item i,
    .system-item i,
    .advantage-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
    
    .contact-card i {
        font-size: 2.5rem;
    }
}



/* 产品分类网格 */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.category-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 35px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    transition: width 0.3s ease;
}

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

.category-card:hover::before {
    width: 6px;
}

.category-card h3 {
    font-size: 1.35rem;
    margin-bottom: 18px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
}

.category-card h3 i {
    font-size: 1.4rem;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: var(--radius-md);
}

.category-card p {
    color: var(--text-light);
    margin-bottom: 25px;
    line-height: 1.8;
    font-size: 1rem;
}

.category-link {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 0;
    position: relative;
}

.category-link::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.category-link:hover {
    gap: 12px;
}

.category-link:hover::after {
    width: 100%;
}

/* 栏目信息区域 */
.category-info {
    background: linear-gradient(135deg, #f8fafc 0%, #e8f4ff 100%);
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 50px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.info-item {
    background: var(--bg-white);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    transition: var(--transition);
}

.info-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.info-item h3 {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.info-item h3 i {
    font-size: 1.1rem;
}

.info-item p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
}

.supply-info {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--bg-white);
    padding: 20px 25px;
    border-radius: 10px;
    text-align: center;
    font-size: 0.95rem;
    font-weight: 500;
}

.supply-info i {
    margin-right: 8px;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 50px;
    padding: 20px 0;
}

.pagination-content {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: nowrap;
    justify-content: center;
    overflow-x: auto;
    max-width: 100%;
    padding: 0 10px;
}

.pagination-content::-webkit-scrollbar {
    display: none;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
    color: var(--text-dark);
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    flex-shrink: 0;
}

.pagination a:hover {
    background: var(--primary-color);
    color: var(--bg-white);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.pagination span.current {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--bg-white);
    border-color: var(--primary-color);
    font-weight: 600;
}

.pagination .pagination-ellipsis {
    min-width: 30px;
    padding: 0 8px;
    color: var(--text-light);
    font-weight: 600;
    pointer-events: none;
}

.pagination .pagination-next {
    min-width: 90px;
    font-size: 0.85rem;
}

.pagination .pagination-prev {
    min-width: 90px;
    font-size: 0.85rem;
}

/* 移动端分页优化 */
@media (max-width: 768px) {
    .pagination {
        margin-top: 30px;
        padding: 15px 0;
    }

    .pagination-content {
        gap: 4px;
        padding: 0 5px;
    }

    .pagination a,
    .pagination span {
        min-width: 36px;
        height: 36px;
        padding: 0 10px;
        font-size: 0.85rem;
    }

    .pagination .pagination-next {
        min-width: 80px;
        font-size: 0.8rem;
    }

    .pagination .pagination-prev {
        min-width: 80px;
        font-size: 0.8rem;
    }
}

/* 优势网格 */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.advantage-card {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.advantage-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.advantage-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

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

/* 场景网格 */
.scenario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.scenario-card {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.scenario-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.scenario-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.scenario-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* 联系卡片 */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.contact-card {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.contact-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.contact-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.contact-card p {
    color: var(--text-light);
    margin-bottom: 15px;
}

.contact-card a {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
}

/* 面包屑导航 */
.breadcrumb {
    background: var(--bg-light);
    padding: 15px 0;
    font-size: 0.9rem;
}

.breadcrumb .container {
    display: flex;
    align-items: center;
    gap: 10px;
}

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

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

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

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    color: #ffffff;
    padding: 70px 0 25px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--accent-color) 100%);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
}

.footer-section h4 {
    font-size: 1.25rem;
    margin-bottom: 25px;
    color: #ffffff;
    font-weight: 700;
    position: relative;
    padding-bottom: 12px;
}

.footer-section h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-light) 0%, var(--secondary-color) 100%);
    border-radius: 2px;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.9;
    font-size: 0.95rem;
    margin-bottom: 12px;
    display: flex;
    align-items: baseline;
    gap: 10px;
    transition: var(--transition);
}

.footer-section p {
    flex-wrap: wrap;
}

.footer-section p a {
    display: inline;
    margin-bottom: 0;
}

.footer-section a:hover {
    color: #ffffff;
    transform: translateX(5px);
}

.footer-section i {
    color: var(--primary-light);
    font-size: 1.1rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: 25px;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* 固定联系按钮 */
.fixed-contact {
    position: fixed;
    right: 25px;
    bottom: 100px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.fixed-contact a {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 6px 20px rgba(30, 64, 175, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    position: relative;
}

.fixed-contact a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.fixed-contact a:hover {
    transform: scale(1.15) translateY(-5px);
    box-shadow: 0 10px 30px rgba(30, 64, 175, 0.5);
}

.fixed-contact a:hover::before {
    opacity: 1;
}

.fixed-contact a i {
    position: relative;
    z-index: 1;
}

.fixed-contact a:nth-child(2) {
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.4);
}

.fixed-contact a:nth-child(2):hover {
    box-shadow: 0 10px 30px rgba(34, 197, 94, 0.5);
}

/* 文本工具类 */
.text-center {
    text-align: center;
}

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

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

.mt-20 {
    margin-top: 20px;
}

.mb-30 {
    margin-bottom: 30px;
}

.mb-40 {
    margin-bottom: 40px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
    }
    
    .hero-text h1 {
        font-size: 2.25rem;
    }
    
    .hero-contact {
        order: -1;
    }
    
    .contact-box {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        padding: 25px;
    }
    
    .contact-item {
        flex: 1;
        min-width: 200px;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav {
        height: 65px;
    }
    
    .logo {
        font-size: 1.3rem;
    }
    
    .logo i {
        font-size: 1.5rem;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 65px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-md);
        gap: 5px;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu a {
        padding: 12px 15px;
        border-radius: var(--radius-sm);
    }
    
    .nav-menu a:hover {
        background: var(--bg-light);
    }
    
    .nav-menu a::after {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero-section {
        padding: 60px 0;
    }
    
    .hero-text h1 {
        font-size: 1.75rem;
    }
    
    .hero-text p {
        font-size: 1rem;
    }
    
    .contact-box {
        flex-direction: column;
        padding: 25px;
        gap: 15px;
    }
    
    .contact-item {
        min-width: auto;
        justify-content: flex-start;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 25px;
    }
    
    .category-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .category-card {
        padding: 25px;
    }
    
    .advantage-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .scenario-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .contact-cards {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .fixed-contact {
        right: 15px;
        bottom: 80px;
    }
    
    .fixed-contact a {
        width: 50px;
        height: 50px;
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-text h1 {
        font-size: 1.5rem;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
        width: 100%;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .category-card h3 {
        font-size: 1.2rem;
    }
    
    .category-card h3 i {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
}

/* ==================== 子页面通用样式 ==================== */

/* 页面标题区域 */
.page-title {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--secondary-color) 100%);
    color: var(--bg-white);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-title::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 1;
}

.page-title h1 {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.page-title p {
    font-size: 1.2rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

/* 面包屑导航优化 */
.breadcrumb {
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
    padding: 20px 0;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb .container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.breadcrumb a {
    color: var(--primary-color);
    font-weight: 500;
    padding: 5px 10px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.breadcrumb a:hover {
    background: rgba(30, 64, 175, 0.1);
    text-decoration: none;
}

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

.breadcrumb span:not(:first-child)::before {
    content: '/';
    margin-right: 12px;
    color: var(--border-color);
}

/* ==================== 新闻资讯页面样式 ==================== */

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 35px;
}

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

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

.news-image {
    width: 100%;
    overflow: hidden;
}

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

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

.news-content {
    padding: 28px;
}

.news-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 0.9rem;
}

.news-date {
    color: var(--primary-color);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-date::before {
    content: '\f073';
    font-family: 'Font Awesome 6 Free';
    font-weight: 400;
}

.news-category {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.news-content h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-content h3 a {
    color: var(--text-dark);
    transition: var(--transition);
}

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

.news-content p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 18px;
}

.news-readmore {
    color: var(--primary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.news-readmore:hover {
    gap: 12px;
}

/* ==================== 工程案例页面样式 ==================== */

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 35px;
}

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

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

.case-image {
    width: 100%;
    overflow: hidden;
    position: relative;
}

.case-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: linear-gradient(to top, rgba(0,0,0,0.4), transparent);
    opacity: 0;
    transition: var(--transition);
}

.case-card:hover .case-image::after {
    opacity: 1;
}

.case-image img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    transition: var(--transition);
}

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

.case-content {
    padding: 28px;
}

.case-content h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
    color: var(--text-dark);
    font-weight: 700;
}

.case-content p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 18px;
}

.case-meta {
    display: flex;
    gap: 20px;
    padding-top: 18px;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-light);
}

.case-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

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

/* ==================== FAQ页面样式 ==================== */

.faq-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.faq-category {
    margin-bottom: 40px;
}

.faq-category-title {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border-color);
}

.faq-category-title .icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.faq-category-title h2 {
    font-size: 1.4rem;
    color: var(--text-dark);
    font-weight: 700;
    margin: 0;
}

.faq-item {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    border-color: var(--primary-light);
}

.faq-question {
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    cursor: pointer;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 100%);
    transition: var(--transition);
}

.faq-question:hover {
    background: linear-gradient(135deg, #e8f4ff 0%, var(--bg-white) 100%);
}

.faq-question h3 {
    font-size: 1rem;
    color: var(--text-dark);
    font-weight: 600;
    flex: 1;
    padding-right: 15px;
    margin: 0;
    line-height: 1.4;
}

.faq-question .icon {
    font-size: 1.1rem;
    color: var(--primary-color);
    transition: var(--transition);
    flex-shrink: 0;
    margin-top: 2px;
}

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

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

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

.faq-answer p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.9rem;
    margin: 0;
    padding-top: 15px;
}

.faq-answer strong {
    color: var(--primary-color);
    font-weight: 600;
}

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

@media (max-width: 768px) {
    .faq-container {
        padding: 0 15px;
    }
    
    .faq-category {
        margin-bottom: 30px;
    }
    
    .faq-category-title {
        gap: 10px;
        margin-bottom: 15px;
        padding-bottom: 10px;
    }
    
    .faq-category-title .icon {
        font-size: 1.5rem;
    }
    
    .faq-category-title h2 {
        font-size: 1.2rem;
    }
    
    .faq-question {
        padding: 18px 20px;
    }
    
    .faq-question h3 {
        font-size: 0.95rem;
        padding-right: 10px;
    }
    
    .faq-question .icon {
        font-size: 1rem;
    }
    
    .faq-answer {
        padding: 0 20px;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 20px 20px;
    }
    
    .faq-answer p {
        font-size: 0.85rem;
        line-height: 1.7;
    }
}

@media (max-width: 480px) {
    .faq-question {
        padding: 16px 18px;
    }
    
    .faq-question h3 {
        font-size: 0.9rem;
    }
    
    .faq-answer p {
        font-size: 0.8rem;
    }
}

/* ==================== 地区详情页样式 ==================== */

.service-area {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.area-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.area-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--primary-color);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.3s ease;
}

.area-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.12);
    border-color: var(--primary-light);
}

.area-card:hover::before {
    transform: scaleY(1);
}

.area-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.area-card:hover i {
    transform: scale(1.1);
}

.area-card h3 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 600;
    position: relative;
    padding-bottom: 10px;
}

.area-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--primary-light);
    border-radius: 2px;
}

.area-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
}

.service-targets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.target-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 35px 25px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
    position: relative;
}

.target-card::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid var(--bg-white);
    opacity: 0;
    transition: all 0.3s ease;
}

.target-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.12);
    border-color: var(--primary-light);
}

.target-card:hover::after {
    opacity: 1;
}

.target-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: all 0.3s ease;
    background: rgba(0, 150, 255, 0.1);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 20px;
}

.target-card:hover i {
    transform: scale(1.1) rotate(5deg);
    background: rgba(0, 150, 255, 0.15);
}

.target-card h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 600;
}

.target-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
    margin: 0;
}

/* 产品网格优化 */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.product-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.12);
    border-color: var(--primary-light);
}

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

/* 首页产品卡片图片样式 - 使用图标而非图片 */
.home .product-card .product-image,
.product-card.icon-only .product-image {
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 150, 255, 0.05);
    transition: background 0.3s ease;
}

.home .product-card:hover .product-image,
.product-card.icon-only:hover .product-image {
    background: rgba(0, 150, 255, 0.1);
}

.home .product-card .product-image i,
.product-card.icon-only .product-image i {
    font-size: 4rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.product-card:hover .product-image i {
    transform: scale(1.1) rotate(5deg);
}

.product-card h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin: 0 0 10px;
    font-weight: 600;
}

.product-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0 0 15px;
}

.product-card .btn {
    margin: 0;
    width: 100%;
    transition: all 0.3s ease;
}

.product-card:hover .btn {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 150, 255, 0.3);
}

/* 服务优势优化 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.advantage-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.12);
    border-color: var(--primary-light);
}

.advantage-icon {
    background: rgba(0, 150, 255, 0.1);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.advantage-item:hover .advantage-icon {
    background: var(--primary-color);
    transform: scale(1.1);
}

.advantage-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: color 0.3s ease;
}

.advantage-item:hover .advantage-icon i {
    color: white;
}

.advantage-content h3 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 10px;
    font-weight: 600;
}

.advantage-content p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
}

/* 联系卡片优化 */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.contact-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 35px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 150, 255, 0.05), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.12);
    border-color: var(--primary-light);
}

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

.contact-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.contact-card:hover i {
    transform: scale(1.1) rotate(5deg);
}

.contact-card h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 600;
}

.contact-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 20px;
}

.contact-card a {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-card:hover a {
    color: var(--primary-dark);
    text-decoration: underline;
}

.contact-card span {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* ==================== 联系我们页面样式 ==================== */

.contact-info {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 50px;
    align-items: start;
}

.contact-details {
    background: var(--bg-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.contact-details h2 {
    font-size: 1.75rem;
    margin-bottom: 30px;
    color: var(--text-dark);
    font-weight: 700;
    position: relative;
    padding-bottom: 15px;
}

.contact-details h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 2px;
}

.contact-details .contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 100%);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.contact-details .contact-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow);
}

.contact-details .contact-item i {
    font-size: 1.8rem;
    color: var(--primary-color);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(30, 64, 175, 0.1);
    border-radius: 50%;
}

.contact-details .contact-item h3 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 5px;
    font-weight: 700;
}

.contact-details .contact-item p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.contact-link,
.contact-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.wechat-qr {
    background: var(--bg-white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    text-align: center;
}

.wechat-qr h3 {
    font-size: 1.25rem;
    margin-bottom: 25px;
    color: var(--text-dark);
    font-weight: 700;
}

.wechat-qr img {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.wechat-qr p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 8px;
}

.wechat-qr p:last-child {
    color: var(--primary-color);
    font-weight: 600;
}

/* ==================== 关于我们页面样式 ==================== */

.about-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: 25px;
    color: var(--text-dark);
    font-weight: 700;
    position: relative;
    padding-bottom: 15px;
}

.about-text h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 2px;
}

.about-text p {
    color: var(--text-light);
    font-size: 1.05rem;
    line-height: 1.9;
    margin-bottom: 20px;
}

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

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

.advantages {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.advantage-item {
    background: var(--bg-white);
    padding: 35px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.advantage-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.advantage-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    border-radius: 50%;
    margin-left: auto;
    margin-right: auto;
}

.advantage-item h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--text-dark);
    font-weight: 700;
}

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

/* 文章详情页样式 */
.article-content {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 45px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    margin-bottom: 40px;
}

.article-content h1 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 25px;
    font-weight: 700;
    line-height: 1.3;
}

.article-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
}

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

.article-body {
    line-height: 1.9;
    color: var(--text-medium);
    font-size: 1.05rem;
}

.article-body p {
    margin-bottom: 25px;
    text-align: justify;
}

.article-body h2 {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin: 40px 0 20px;
    font-weight: 700;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--bg-light);
}

.article-body h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin: 30px 0 15px;
    font-weight: 600;
}

.article-body ul,
.article-body ol {
    margin: 20px 0;
    padding-left: 30px;
}

.article-body ul {
    list-style: disc;
}

.article-body ol {
    list-style: decimal;
}

.article-body li {
    margin-bottom: 10px;
    color: var(--text-medium);
}

/* 表格样式 */
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    font-size: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.article-body th {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--bg-white);
    font-weight: 600;
    padding: 15px 20px;
    text-align: left;
    border: 1px solid rgba(255,255,255,0.2);
}

.article-body td {
    padding: 12px 20px;
    border: 1px solid var(--border-color);
    color: var(--text-medium);
    line-height: 1.5;
}

.article-body tr:nth-child(even) {
    background-color: var(--bg-light);
}

.article-body tr:hover {
    background-color: rgba(59, 130, 246, 0.05);
}

.article-body table caption {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-dark);
    text-align: left;
}

/* 响应式表格 */
@media (max-width: 768px) {
    .article-body table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .article-body th,
    .article-body td {
        padding: 10px 15px;
        font-size: 0.9rem;
    }
}

.article-tags {
    margin-top: 40px;
    padding-top: 25px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.article-tags .tag {
    background: var(--bg-light);
    color: var(--primary-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.article-tags .tag:hover {
    background: var(--primary-color);
    color: var(--bg-white);
    transform: translateY(-2px);
}

.article-nav {
    display: flex;
    gap: 20px;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.article-nav .btn {
    flex: 1;
    max-width: 200px;
}

/* 相关资讯推荐 */
.related-articles {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    margin-top: 50px;
}

.related-articles h3 {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 30px;
    font-weight: 700;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--bg-light);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.related-card {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    padding: 25px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.related-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.related-card h4 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    font-weight: 600;
    line-height: 1.4;
}

.related-card h4 a {
    color: var(--text-dark);
    transition: var(--transition);
}

.related-card h4 a:hover {
    color: var(--primary-color);
}

.related-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.related-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-light);
}

.related-meta .date {
    display: flex;
    align-items: center;
    gap: 6px;
}

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

/* 移动端适配 */
@media (max-width: 768px) {
    .article-content {
        padding: 25px;
    }
    
    .article-content h1 {
        font-size: 1.4rem;
    }
    
    .article-meta {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .article-body {
        font-size: 1rem;
    }
    
    .article-body h2 {
        font-size: 1.2rem;
    }
    
    .article-body h3 {
        font-size: 1.1rem;
    }
    
    .article-tags {
        justify-content: center;
    }
    
    .article-nav {
        flex-direction: column;
        align-items: center;
    }
    
    .article-nav .btn {
        max-width: 100%;
        width: 100%;
    }
    
    .related-articles {
        padding: 25px;
    }
    
    .related-grid {
        grid-template-columns: 1fr;
    }
}

/* ==================== 地区产品页面样式 ==================== */

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--secondary-color) 100%);
    color: var(--bg-white);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
}

.hero.py-50 {
    padding: 60px 0;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero p {
    font-size: 1.15rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

.center-box {
    max-width: 800px;
    margin: 0 auto;
}

.center-box-white {
    background: var(--bg-white);
    padding: 50px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    border: 1px solid var(--border-color);
}

.font-4xl {
    font-size: 3.5rem;
}

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

.mb-20 {
    margin-bottom: 20px;
}

.mt-10 {
    margin-top: 10px;
}

.line-height-2 {
    line-height: 1.9;
}

.font-large {
    font-size: 1.05rem;
}

/* 地区服务优势 */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-item {
    background: var(--bg-white);
    padding: 35px 25px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.feature-item i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-item h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

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

/* ==================== 产品详情页样式 ==================== */

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 50px;
    align-items: start;
}

.product-gallery {
    position: sticky;
    top: 100px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.product-main-image {
    position: relative;
    padding-top: 75%;
    overflow: hidden;
    background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
}

.product-main-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 20px;
    transition: var(--transition);
}

.product-main-image:hover img {
    transform: scale(1.02);
}

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

.product-info > h1 {
    font-size: 1.8rem;
    color: var(--text-dark);
    margin-bottom: 5px;
    font-weight: 700;
    line-height: 1.4;
}

.product-description {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    padding: 22px 25px;
    border-radius: var(--radius-md);
    border-left: 4px solid #0284c7;
}

.product-description h2 {
    font-size: 1.15rem;
    color: #0284c7;
    margin-bottom: 12px;
    font-weight: 600;
}

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

.product-meta-box {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 20px 22px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    border: 1px solid #e2e8f0;
}

.product-meta-box h3 {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 600;
    padding-bottom: 10px;
    border-bottom: 2px solid #e2e8f0;
}

.product-meta-row {
    display: flex;
    padding: 10px 0;
    border-bottom: 1px dashed #e2e8f0;
}

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

.product-meta-label {
    font-weight: 600;
    color: var(--text-dark);
    min-width: 90px;
    font-size: 0.95rem;
}

.product-meta-value {
    color: var(--text-medium);
    flex: 1;
    font-size: 0.95rem;
    line-height: 1.5;
}

.product-advantage {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-radius: var(--radius-md);
    padding: 20px 22px;
    border-left: 4px solid #d97706;
}

.product-advantage h3 {
    font-size: 1rem;
    color: #b45309;
    margin-bottom: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-advantage ul {
    margin: 0;
    padding-left: 0;
    list-style: none;
}

.product-advantage li {
    padding: 8px 0;
    color: #92400e;
    font-size: 0.95rem;
    display: flex;
    align-items: flex-start;
    gap: 8px;
    line-height: 1.5;
}

.product-advantage li::before {
    content: '✓';
    color: #d97706;
    font-weight: bold;
    min-width: 18px;
}

.product-description {
    background: var(--bg-white);
    padding: 30px 35px;
    border-radius: var(--radius-lg);
    border-left: 5px solid var(--primary-color);
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.product-description h2 {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 18px;
    font-weight: 700;
    position: relative;
    padding-bottom: 12px;
    display: inline-block;
}

.product-description h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 2px;
}

.product-description p {
    font-size: 1.05rem;
    line-height: 2;
    color: var(--text-medium);
    text-align: justify;
}

.product-parameters {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 18px 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    border: 1px solid #e2e8f0;
}

.product-parameters h2 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-parameters h2::before {
    content: '⚙';
    font-size: 1rem;
}

.product-parameters table {
    width: 100%;
    border-collapse: collapse;
    background: transparent;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.product-parameters th,
.product-parameters td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid #f1f5f9;
    font-size: 0.9rem;
}

.product-parameters th {
    background: #f8fafc;
    color: var(--text-dark);
    font-weight: 600;
    width: 30%;
}

.product-parameters td {
    color: var(--text-medium);
}

.product-parameters tr:nth-child(even) {
    background: #fafbfc;
}

.product-parameters tr:last-child td {
    border-bottom: none;
}

.product-scenarios,
.product-customers {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 15px 18px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    border: 1px solid #e2e8f0;
}

.product-scenarios h2,
.product-customers h2 {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 600;
}

.product-scenarios ul,
.product-customers ul {
    background: transparent;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    border: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.product-scenarios li,
.product-customers li {
    padding: 8px 12px;
    margin-bottom: 0;
    background: #f8fafc;
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--primary-color);
    transition: var(--transition);
    font-size: 0.85rem;
    color: var(--text-dark);
}

.product-scenarios li:hover,
.product-customers li:hover {
    background: #eff6ff;
}

.product-scenarios li:last-child,
.product-customers li:last-child {
    margin-bottom: 0;
}

.product-contact {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--bg-white);
    padding: 30px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.product-contact h2 {
    color: var(--bg-white);
    margin-bottom: 15px;
}

.product-contact h2::after {
    background: var(--bg-white);
}

.product-contact p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 25px;
    opacity: 0.95;
}

.contact-buttons {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.contact-buttons .btn {
    flex: 1;
    min-width: 160px;
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--bg-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.3);
}

.back-to-category {
    text-align: center;
}

.related-products {
    margin-top: 80px;
}

.related-products h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-dark);
    font-weight: 700;
    position: relative;
    padding-bottom: 15px;
}

.related-products h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 2px;
}

/* ==================== 专题页面样式 ==================== */

/* 介绍框 */
.intro-box {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-left: 4px solid var(--primary-color);
    padding: 25px 30px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-bottom: 40px;
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.intro-box i {
    font-size: 2rem;
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 5px;
}

.intro-box p {
    margin: 0;
    color: var(--text-medium);
    font-size: 1.05rem;
    line-height: 1.8;
}

/* 原则网格 */
.principle-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.principle-card {
    background: var(--bg-white);
    padding: 25px 20px;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.principle-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.principle-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    display: block;
}

.principle-card h4 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 10px;
    font-weight: 600;
}

.principle-card p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

/* 材质部分 */
.material-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

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

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

.material-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--bg-white);
    padding: 20px 25px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.material-header i {
    font-size: 1.5rem;
}

.material-header h3 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 600;
    flex: 1;
}

.material-header .tag {
    background: rgba(255,255,255,0.2);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
}

.material-content {
    padding: 25px;
}

.material-content p {
    color: var(--text-medium);
    margin-bottom: 15px;
    line-height: 1.7;
}

.material-content ul {
    margin: 0;
    padding-left: 20px;
}

.material-content li {
    color: var(--text-medium);
    margin-bottom: 8px;
    line-height: 1.6;
}

/* 场景网格 */
.scene-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

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

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

.scene-icon {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--bg-white);
    padding: 30px;
    text-align: center;
}

.scene-icon i {
    font-size: 3rem;
}

.scene-card h3 {
    padding: 20px 25px 0;
    margin: 0;
    font-size: 1.2rem;
    color: var(--text-dark);
    font-weight: 600;
}

.scene-content {
    padding: 20px 25px 25px;
}

.scene-content p {
    color: var(--text-medium);
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.scene-content ul {
    margin: 0 0 15px 0;
    padding-left: 20px;
}

.scene-content li {
    color: var(--text-medium);
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.product-tag {
    background: var(--bg-light);
    color: var(--primary-color);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* 注意事项框 */
.notice-box {
    background: linear-gradient(135deg, #fefce8 0%, #fef9c3 100%);
    border: 1px solid #fde047;
    border-radius: var(--radius-md);
    padding: 25px 30px;
    margin: 30px 0;
}

.notice-box ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.notice-box li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 15px;
    color: var(--text-medium);
    line-height: 1.6;
}

.notice-box li:last-child {
    margin-bottom: 0;
}

.notice-box li i {
    color: #eab308;
    font-size: 1.1rem;
    margin-top: 3px;
}

/* 流程时间线 */
.process-timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 30px 0;
    position: relative;
}

.process-timeline::before {
    content: '';
    position: absolute;
    left: 25px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--primary-light) 100%);
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: 25px;
    padding: 20px 0;
    position: relative;
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--bg-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: 700;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
}

.step-content {
    flex: 1;
    padding-top: 5px;
}

.step-content h4 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 8px;
    font-weight: 600;
}

.step-content p {
    color: var(--text-light);
    margin: 0;
    font-size: 0.95rem;
}

/* CTA区域 */
.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-lg);
    padding: 50px 40px;
    text-align: center;
    margin-top: 50px;
    border: none;
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.3);
}

.cta-section h3 {
    font-size: 1.75rem;
    color: #ffffff;
    margin-bottom: 15px;
    font-weight: 700;
}

.cta-section h3 i {
    color: #ffd700;
    margin-right: 10px;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 35px;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    font-size: 1.05rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.cta-buttons .btn {
    padding: 14px 40px;
    font-size: 1.05rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-buttons .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.cta-buttons .btn-primary {
    background: #ffffff;
    color: #667eea;
    border: 2px solid #ffffff;
}

.cta-buttons .btn-primary:hover {
    background: #f8f9ff;
}

.cta-buttons .btn-success {
    background: #ffd700;
    color: #333333;
    border: 2px solid #ffd700;
}

.cta-buttons .btn-success:hover {
    background: #ffea00;
}

.cta-section .wechat-qr {
    margin-top: 0;
    padding: 30px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    display: inline-block;
}

.cta-section .wechat-qr img {
    width: 180px;
    height: 180px;
    border-radius: var(--radius-md);
    margin-bottom: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    border: 3px solid #ffffff;
}

.cta-section .wechat-qr p {
    color: #ffffff;
    font-weight: 600;
    margin: 0;
    font-size: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* 价格表格 */
.price-table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    background: var(--bg-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.price-table th,
.price-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.price-table th {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--bg-white);
    font-weight: 600;
}

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

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

/* 保障卡片 */
.guarantee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

.guarantee-card {
    background: var(--bg-white);
    padding: 30px 25px;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.guarantee-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
}

.guarantee-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: block;
}

.guarantee-card h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    font-weight: 600;
}

.guarantee-card ul {
    text-align: left;
    margin: 0;
    padding-left: 20px;
}

.guarantee-card li {
    color: var(--text-medium);
    margin-bottom: 8px;
    font-size: 0.95rem;
    line-height: 1.5;
}

/* FAQ样式 */
.faq-section {
    margin: 30px 0;
}

.faq-item {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    margin-bottom: 15px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.faq-question {
    padding: 20px 25px;
    font-weight: 600;
    color: var(--text-dark);
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid var(--border-color);
}

.faq-answer {
    padding: 20px 25px;
    color: var(--text-medium);
    line-height: 1.7;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .principle-grid {
        grid-template-columns: 1fr;
    }
    
    .material-section {
        grid-template-columns: 1fr;
    }
    
    .scene-grid {
        grid-template-columns: 1fr;
    }
    
    .process-timeline::before {
        left: 20px;
    }
    
    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }
    
    .cta-section {
        padding: 35px 25px;
        margin-top: 35px;
    }
    
    .cta-section h3 {
        font-size: 1.35rem;
    }
    
    .cta-section p {
        font-size: 0.95rem;
        margin-bottom: 25px;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 12px;
        margin-bottom: 25px;
    }
    
    .cta-buttons .btn {
        width: 100%;
        padding: 12px 25px;
        font-size: 0.95rem;
    }
    
    .cta-section .wechat-qr {
        padding: 20px;
    }
    
    .cta-section .wechat-qr img {
        width: 150px;
        height: 150px;
    }
    
    .cta-section .wechat-qr p {
        font-size: 0.9rem;
    }
}
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 2px;
}

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

.related-product-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: var(--transition);
    border: none;
    position: relative;
}

.related-product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    z-index: 10;
    opacity: 0;
    transition: var(--transition);
}

.related-product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.related-product-card:hover::before {
    opacity: 1;
}

.related-product-image {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding-top: 70%;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
}

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

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

.related-product-content {
    padding: 20px;
}

.related-product-content h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-dark);
    font-weight: 600;
}

.related-product-content h3 a {
    color: inherit;
    transition: var(--transition);
}

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

.related-product-content p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 15px;
}

.related-product-link {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.related-product-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* ==================== 响应式适配 ==================== */

@media (max-width: 992px) {
    .page-title {
        padding: 60px 0;
    }
    
    .page-title h1 {
        font-size: 2.25rem;
    }
    
    .news-grid,
    .cases-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: 25px;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image {
        order: -1;
    }
    
    .product-detail {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .product-gallery {
        position: static;
    }
    
    .product-info > h1 {
        font-size: 1.5rem;
    }
    
    .product-meta-row {
        flex-direction: column;
        gap: 5px;
    }
    
    .product-meta-label {
        min-width: auto;
    }
}

@media (max-width: 768px) {
    .page-title {
        padding: 50px 0;
    }
    
    .page-title h1 {
        font-size: 1.75rem;
    }
    
    .page-title p {
        font-size: 1rem;
    }
    
    .breadcrumb {
        padding: 15px 0;
    }
    
    .news-grid,
    .cases-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .related-products-grid {
        grid-template-columns: 1fr;
    }
    
    .news-content,
    .case-content {
        padding: 22px;
    }
    
    .faq-question {
        padding: 18px 22px;
    }
    
    .faq-question h3 {
        font-size: 1rem;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 22px 22px;
    }
    
    .contact-details {
        padding: 28px;
    }
    
    .contact-details .contact-item {
        padding: 18px;
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .wechat-qr {
        padding: 28px;
    }
    
    .wechat-qr img {
        width: 160px;
        height: 160px;
    }
    
    .cta-section .wechat-qr {
        padding: 20px;
    }
    
    .cta-section .wechat-qr img {
        width: 160px;
        height: 160px;
    }
    
    .about-text h2 {
        font-size: 1.5rem;
    }
    
    .advantages {
        grid-template-columns: 1fr;
    }
    
    .features {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .feature-item {
        padding: 28px 22px;
    }
    
    .feature-item i {
        font-size: 2rem;
    }
    
    .feature-item h3 {
        font-size: 1.2rem;
    }
    
    .advantage-item {
        padding: 28px;
    }
    
    .center-box-white {
        padding: 30px;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .news-meta {
        flex-wrap: wrap;
        gap: 10px;
    }
    
    .case-meta {
        flex-direction: column;
        gap: 10px;
    }
    
    .faq-category-title {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .faq-category-title h2 {
        font-size: 1.25rem;
    }
    
    .product-detail {
        gap: 20px;
    }
    
    .product-info > h1 {
        font-size: 1.4rem;
    }
    
    .product-description {
        padding: 15px;
    }
    
    .product-description h2 {
        font-size: 1rem;
    }
    
    .product-description p {
        font-size: 0.9rem;
    }
    
    .product-meta-box {
        padding: 15px;
    }
    
    .product-meta-row {
        flex-direction: column;
        gap: 5px;
    }
    
    .product-meta-label {
        min-width: auto;
        font-size: 0.85rem;
    }
    
    .product-meta-value {
        font-size: 0.85rem;
    }
    
    .product-advantage {
        padding: 15px;
    }
    
    .product-advantage h3 {
        font-size: 0.95rem;
    }
    
    .product-advantage li {
        font-size: 0.85rem;
    }
    
    .product-parameters {
        padding: 12px;
    }
    
    .product-parameters th,
    .product-parameters td {
        padding: 8px 10px;
        font-size: 0.8rem;
    }
    
    .product-scenarios,
    .product-customers {
        padding: 12px 15px;
    }
    
    .product-scenarios h2,
    .product-customers h2 {
        font-size: 0.95rem;
    }
    
    .product-scenarios ul,
    .product-customers ul {
        grid-template-columns: 1fr;
    }
    
    .product-scenarios li,
    .product-customers li {
        font-size: 0.8rem;
        padding: 6px 10px;
    }
    
    .related-products-grid {
        grid-template-columns: 1fr;
    }
    
    .related-products h2 {
        font-size: 1.3rem;
    }
    
    .scenarios-grid,
    .components-grid,
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .scenario-item,
    .component-item,
    .advantage-item {
        padding: 20px 15px;
    }
    
    .scenario-item i,
    .component-item i {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        padding: 10px;
    }
    
    .specs-table th,
    .specs-table td {
        padding: 10px 12px;
        font-size: 0.85rem;
    }
    
    .product-specs h2,
    .application-scenarios h2,
    .system-components h2,
    .advantages h2 {
        font-size: 1.4rem;
    }
}

@media (max-width: 480px) {
    .scenarios-grid,
    .components-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }
}