/* --- 全局重置 --- */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
        }
       a:hover {
color:#1a3db8;
      }
        body {
            background-color: #f5f5f5;
            color: #333;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        ul {
            list-style: none;
        }

        /* --- 顶部 Header --- */
header {
width:100%;
background:#fff;
}
        .header {
            /*background-color: #fff;*/
max-width:1340px;
margin: 0 auto;
            /*padding: 0 5%;*/
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-bottom: 1px solid #eee;
            flex-wrap: wrap; /* 小屏幕换行 */
        }
.header h2 {
            font-size: 24px;
        }

        .header h1 {
            font-size: 40px;
            color: #1a3db8;
            line-height: 1.2;
            margin-left: 20px;
        }
        /* Logo 区域 (模拟图片中的Logo) */
        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-area img {
width:340px;
}
        .logo-img {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #1e88e5, #1565c0);
            border-radius: 5px;
            position: relative;
        }
        .logo-img::after {
            content: "之";
            color: white;
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            font-weight: bold;
        }

        .logo-text h1 {
            font-size: 20px;
            color: #1565c0;
            line-height: 1.2;
        }
        .logo-text p {
            font-size: 12px;
            color: #666;
        }

        /* 导航栏 */
        .nav {
            display: flex;
            gap: 30px;
            height: 100%;
            align-items: center;
        }

        .nav a {
            font-size: 16px;
            color: #333;
            height: 100%;
            display: flex;
            align-items: center;
            position: relative;
            padding: 0 5px;
        }

        .nav a.active {
            color: #1e88e5;
            font-weight: bold;
        }

        /* 蓝色下划线 */
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background-color: #1e88e5;
        }

        /* 搜索框 */
        .search-box {
            display: flex;
            align-items: center;
            background-color: #f2f2f2;
            border-radius: 20px;
            padding: 8px 15px;
            width: 200px;
        }

        .search-box input {
            border: none;
            background: transparent;
            outline: none;
            width: 100%;
            font-size: 14px;
            color: #666;
        }

        .search-box span {
            color: #999;
            cursor: pointer;
        }

        /* --- Banner 区域 --- */
        .banner {
            /*background-color: #0d1b8d; 
            background-image: linear-gradient(to right, #0d1b8d, #1a3db8);*/
background: url(/_upload/tpl/01/bd/445/template445/./images/bg-blue.jpeg) no-repeat center;
    background-size: 100% 100%;
            height: 300px; 
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
            overflow: hidden;
            color: #fff;
            margin-bottom: 20px;
        }

        /* 模拟文字效果 */
        .banner-content {
            text-align: center;
            z-index: 2;
        }

        .banner h2 {
            font-size: 48px;
            font-weight: 900;
            letter-spacing: 2px;
            text-shadow: 0 4px 10px rgba(0,0,0,0.3);
            /* 模拟图片中的渐变/发光字体效果 */
            background: linear-gradient(to bottom, #fff, #dceaff);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 20px;
        }

        /* 模拟右侧的盾牌图标 */
        .shield-icon {
            position: absolute;
            right: 15%;
            top: 50%;
            transform: translateY(-50%);
            width: 120px;
            height: 140px;
            background: rgba(255, 255, 255, 0.1);
            border: 4px solid rgba(255, 255, 255, 0.3);
            border-radius: 10px 10px 50% 50%; /* 盾牌形状 */
            box-shadow: 0 0 20px rgba(100, 181, 246, 0.5);
            display: flex;
            justify-content: center;
            align-items: center;
        }
        
        .shield-icon::after {
            content: '🔒';
            font-size: 50px;
        }

        /* 轮播点 */
        .dots {
            position: absolute;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 10px;
        }

        .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background-color: rgba(255,255,255,0.4);
            cursor: pointer;
        }

        .dot.active {
            background-color: #fff;
        }

        /* --- 内容主体 --- */
        .main-container {
            max-width: 1340px;
            margin: 0 auto;
            padding: 20px;
        }

        .section-title {
            text-align: center;
            font-size: 24px;
            font-weight: bold;
            color: #333;
            margin-bottom: 30px;
        }

        /* 网格布局 */
        .card-grid {
            display: grid;
            /* 自适应列数：最少240px，自动填充 */
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
        }

        /* 单个卡片 */
        .card {
            background-color: #fff;
            border-radius: 4px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0,0,0,0.05);
            transition: transform 0.2s, box-shadow 0.2s;
            cursor: pointer;
        }

        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0,0,0,0.1);
        }

        /* 视频封面 (黑色部分) */
        .card-cover {
            width: 100%;
            height: 260px; /* 固定高度 */
            background-color: #000;
            display: flex;
            justify-content: center;
            align-items: center;
            color: #fff;
            font-size: 16px;
            font-weight: bold;
            position: relative;
        }
        video {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        /* 模拟图片中视频上的播放文字/水印 */
        .card-cover span {
            opacity: 0.9;
        }

        /* 卡片底部信息 */
        .card-info {
            padding: 12px 15px;
        }

        .card-title {
            font-size: 14px;
            color: #333;
            margin-bottom: 10px;
            font-weight: 500;
        }

        .card-meta {
            display: flex;
            justify-content: flex-end; /* 数据靠右 */
            gap: 15px;
            font-size: 12px;
            color: #999;
        }
        
        .card-meta span {
            display: flex;
            align-items: center;
            gap: 4px;
        }
 .footer {
            height: 70px;
           background: url(/_upload/tpl/01/bd/445/template445/./images/footer-blue.png) no-repeat center;
    background-size: 100% 100%;
            text-align: center;
            line-height: 70px;
        }

        .footer p {
            line-height: 70px;
            color: #fff;
        }
        /* --- 响应式适配 --- */
        @media (max-width: 768px) {
            .header {
                height: auto;
                padding: 10px;
                flex-direction: column;
                gap: 10px;
            }
           .logo-area {
                flex-direction: column;
            }
            .header h1  {
                font-size: 20px;
            }
            .header h2 { 
                font-size: 16px;
            }
            .nav {
                width: 100%;
                justify-content: space-around;
                height: 40px;
                font-size: 14px;
            }

            .nav a {
                font-size: 14px;
            }
            
            .search-box {
                width: 100%;
            }
             .banner {
                height:200px;
             }
            .banner h2 {
                font-size: 28px;
                padding: 0 20px;
            }

            .shield-icon {
                display: none; /* 手机端隐藏盾牌图标 */
            }
            
            .card-cover {
                height: 180px; /* 手机端视频封面高一点 */
            }
        }