  /* 基础样式 */
        :root {
            --primary-color: #2a7dc9;
            --secondary-color: #1a6cb9;
            --accent-color: #ff6b00;
            --text-color: #333;
            --light-text: #666;
            --lighter-text: #999;
            --border-color: #eee;
            --bg-color: #f5f5f5;
            --hover-bg: #f9f9f9;
            --white: #fff;
            --shadow: 0 1px 3px rgba(0,0,0,0.1);
            --shadow-hover: 0 5px 15px rgba(0,0,0,0.1);
            --radius: 4px;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", Arial, sans-serif;
        }
        
        body {
            background-color: var(--bg-color);
            color: var(--text-color);
            line-height: 1.6;
            font-size: 14px;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        a {
            text-decoration: none;
            color: var(--text-color);
            transition: all 0.3s ease;
        }
        
        a:hover {
            color: var(--primary-color);
        }
        
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        
        .btn {
            display: inline-block;
            padding: 8px 20px;
            background-color: var(--primary-color);
            color: var(--white);
            border-radius: var(--radius);
            border: none;
            cursor: pointer;
            transition: all 0.3s;
            font-size: 14px;
        }
        
        .btn:hover {
            background-color: var(--secondary-color);
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
        }
        
        .btn-accent {
            background-color: var(--accent-color);
        }
        
        .btn-accent:hover {
            background-color: #e05d00;
        }
        
       
        
        /* 轮播图 */
        .banner {
            height: 400px;
            background-color: #ddd;
            margin: 20px 0;
            border-radius: var(--radius);
            overflow: hidden;
            position: relative;
        }
        
        .banner img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .banner-content {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 30px;
            background: linear-gradient(to top, rgba(0,0,0,0.7), transparent);
            color: var(--white);
        }
        
        .banner-title {
            font-size: 28px;
            margin-bottom: 10px;
        }
        
        .banner-desc {
            font-size: 16px;
            margin-bottom: 20px;
            max-width: 600px;
        }
        
        /* 快速通道 */
        .quick-access {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 15px;
            margin: 25px 0;
        }
        
        .quick-item {
            background-color: var(--white);
            border-radius: var(--radius);
            padding: 20px;
            text-align: center;
            box-shadow: var(--shadow);
            transition: all 0.3s;
        }
        
        .quick-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        
        .quick-icon {
            font-size: 32px;
            color: var(--primary-color);
            margin-bottom: 15px;
        }
        
        .quick-title {
            font-size: 16px;
            font-weight: bold;
            margin-bottom: 10px;
        }
        
        .quick-desc {
            font-size: 13px;
            color: var(--light-text);
        }
        
        /* 主要内容区 */
        .main-content {
            display: flex;
            margin: 6px 0;
            gap: 20px;
        }
        
        .content-area {
            flex: 1;
        }
        
        .sidebar {
            width: 290px;
        }
        
        /* 栏目区块 */
        .channel-section {
            background-color: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin-bottom: 25px;
            overflow: hidden;
        }
        
        .section-header {
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: var(--hover-bg);
        }
        
        .section-title {
            font-size: 18px;
            color: var(--primary-color);
            font-weight: bold;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .section-title .icon {
            font-size: 20px;
        }
        
        .section-more {
            color: var(--lighter-text);
            font-size: 13px;
        }
        
        .section-more:hover {
            color: var(--primary-color);
        }
        
        /* 文档列表 */
        .doc-list {
            padding: 15px;
        }
        
        .doc-item {
            padding: 15px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            gap: 15px;
        }
        
        .doc-item:last-child {
            border-bottom: none;
        }
        
        .doc-item:hover {
            background-color: var(--hover-bg);
        }
        
        .doc-icon {
            width: 60px;
            height: 60px;
            background-color: #f0f0f0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-size: 24px;
            border-radius: var(--radius);
            flex-shrink: 0;
        }
        
        .doc-content {
            flex: 1;
        }
        
        .doc-name {
            font-size: 16px;
            margin-bottom: 8px;
            font-weight: 500;
        }
        
        .doc-name a:hover {
            color: var(--primary-color);
            text-decoration: underline;
        }
        
        .doc-meta {
            display: flex;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--lighter-text);
            margin-bottom: 8px;
            gap: 15px;
        }
        
        .doc-desc {
            color: var(--light-text);
            font-size: 14px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .doc-action {
            width: 120px;
            text-align: right;
            display: flex;
            align-items: center;
            justify-content: flex-end;
        }
        
        /* 侧边栏 */
        .sidebar-widget {
            background-color: var(--white);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            margin-bottom: 20px;
            overflow: hidden;
        }
        
        .widget-title {
            font-size: 16px;
            padding: 12px 15px;
            margin: 0;
            border-bottom: 1px solid var(--border-color);
            color: var(--primary-color);
            font-weight: bold;
            background-color: var(--hover-bg);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .widget-title .icon {
            font-size: 18px;
        }
        
        .widget-list {
            list-style: none;
        }
        
        .widget-list li {
            padding: 12px 15px;
            border-bottom: 1px dashed var(--border-color);
            transition: background-color 0.3s;
        }
        
        .widget-list li:last-child {
            border-bottom: none;
        }
        
        .widget-list li:hover {
            background-color: var(--hover-bg);
        }
        
        .widget-list a {
            display: flex;
            justify-content: space-between;
            color: var(--light-text);
        }
        
        .widget-list a:hover {
            color: var(--primary-color);
        }
        
        .widget-list strong {
            display: block;
            font-weight: normal;
            color: var(--text-color);
        }
        
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            padding: 15px;
            gap: 8px;
        }
        
        .tag {
            padding: 4px 12px;
            background-color: #f0f7ff;
            color: var(--primary-color);
            border-radius: 12px;
            font-size: 12px;
            transition: all 0.3s;
        }
        
        .tag:hover {
            background-color: #d9ebff;
            transform: translateY(-2px);
        }
        
        /* 特色服务 */
        .featured-services {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin: 30px 0;
        }
        
        .service-card {
            background-color: var(--white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all 0.3s;
        }
        
        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        
        .service-image {
            height: 160px;
            overflow: hidden;
        }
        
        .service-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        
        .service-card:hover .service-image img {
            transform: scale(1.05);
        }
        
        .service-content {
            padding: 20px;
        }
        
        .service-title {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--primary-color);
        }
        
        .service-desc {
            color: var(--light-text);
            margin-bottom: 15px;
            font-size: 14px;
            line-height: 1.6;
        }
        
        /* 页脚 */
        .footer {
            background-color: #333;
            color: #999;
            padding: 40px 0 20px;
            font-size: 13px;
            margin-top: 30px;
        }
        
        .footer-main {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 30px;
        }
        
        .footer-column h3 {
            color: var(--white);
            font-size: 16px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #444;
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a {
            color: #ccc;
            display: block;
            padding: 5px 0;
        }
        
        .footer-links a:hover {
            color: var(--white);
            padding-left: 5px;
        }
        
        .contact-info {
            color: #ccc;
            line-height: 1.8;
        }
        
        .contact-info p {
            margin-bottom: 10px;
            display: flex;
            align-items: flex-start;
            gap: 8px;
        }
        
        .contact-info .icon {
            font-size: 16px;
            margin-top: 3px;
        }
        
        .footer-bottom {
            border-top: 1px solid #444;
            padding-top: 20px;
            text-align: center;
            color: #777;
            line-height: 1.8;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .quick-access {
                grid-template-columns: repeat(3, 1fr);
            }
            
            .featured-services {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .footer-main {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        
        @media (max-width: 768px) {
            .header-top {
                flex-direction: column;
                gap: 15px;
            }
            
            .logo {
                margin-bottom: 5px;
            }
            
            .search-box {
                width: 100%;
                margin: 0 0 10px 0;
            }
            
            .user-area {
                width: 100%;
                display: flex;
                justify-content: center;
            }
            
            .nav-list {
                flex-wrap: wrap;
            }
            
            .nav-item {
                flex: 1 0 auto;
            }
            
            .nav-item > a {
                padding: 10px 5px;
                text-align: center;
                font-size: 13px;
            }
            
            .sub-nav {
                width: 100%;
                position: static;
                display: none;
            }
            
            .nav-item:hover .sub-nav {
                display: block;
            }
            
            .banner {
                height: 300px;
            }
            
            .banner-content {
                padding: 20px;
            }
            
            .banner-title {
                font-size: 22px;
            }
            
            .banner-desc {
                font-size: 14px;
            }
            
            .quick-access {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .main-content {
                flex-direction: column;
            }
            
            .sidebar {
                width: 100%;
            }
            
            .featured-services {
                grid-template-columns: 1fr;
            }
            
            .footer-main {
                grid-template-columns: 1fr;
            }
        }
        
        @media (max-width: 480px) {
            .quick-access {
                grid-template-columns: 1fr;
            }
            
            .doc-item {
                flex-direction: column;
            }
            
            .doc-icon {
                margin-bottom: 10px;
            }
            
            .doc-action {
                width: 100%;
                justify-content: flex-start;
                margin-top: 10px;
            }
        }