* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft Yahei", sans-serif;
        }
        body {
            background-color: #0f172a;
            color: #e2e8f0;
        }
        /* 容器主体 */
        .container {
            max-width: 1400px;
            margin: 20px auto;
            display: grid;
            grid-template-columns: 1fr 280px;
            gap: 20px;
            padding: 0 20px;
        }

        /* 左侧主内容 */
        .main-content {
        }
        /* 轮播区域 */
        .banner {
            width: 100%;
            height: 300px;
            border-radius: 12px;
            overflow: hidden;
            position: relative;
            margin-bottom: 24px;
            background: #000;
        }
        .banner-item {
            width: 100%;
            height: 100%;
            display: none;
        }
        .banner-item.active {
            display: block;
        }
        .banner-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .banner-desc {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 30px 20px;
            background: linear-gradient(transparent, rgba(0,0,0,0.7));
            color: #fff;
        }
        .banner-index {
            position: absolute;
            bottom: 15px;
            right: 20px;
            display: flex;
            gap: 8px;
        }
        .dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255,255,255,0.4);
            cursor: pointer;
        }
        .dot.active {
            background: #fff;
        }

        /* 分类标签 */
        .cate-tab {
            display: flex;
            gap: 12px;
            margin-bottom: 20px;
            overflow-x: auto;
            padding-bottom: 8px;
        }
        .cate-tab::-webkit-scrollbar {
            height: 4px;
        }
        .cate-item {
            padding: 8px 18px;
            background: #1e293b;
            border-radius: 20px;
            white-space: nowrap;
            cursor: pointer;
            font-size: 14px;
            color: #e2e8f0;
            border: none;
            outline: none;
        }
        .cate-item.active {
            background: #3b82f6;
            color: #fff;
        }

        /* 视频卡片网格 */
        .video-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
            gap: 20px;
        }
        .video-card {
            background: #1e293b;
            border-radius: 10px;
            overflow: hidden;
            transition: transform 0.2s;
        }
        .video-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 6px 16px rgba(0,0,0,0.3);
        }
        .video-thumb {
            width: 100%;
            height: 130px;
            position: relative;
        }
        .video-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .duration {
            position: absolute;
            bottom: 6px;
            right: 6px;
            background: rgba(0,0,0,0.7);
            color: #fff;
            font-size: 12px;
            padding: 2px 6px;
            border-radius: 4px;
        }
        .video-info {
            padding: 10px;
        }
        .video-title {
            font-size: 15px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 8px;
        }
        .up-info {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: #94a3b8;
            margin-bottom: 6px;
        }
        .up-avatar {
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: #333;
        }
        .video-stat {
            display: flex;
            gap: 12px;
            font-size: 12px;
            color: #64748b;
        }

        /* 右侧边栏通用 */
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .side-block {
            background: #1e293b;
            border-radius: 10px;
            padding: 16px;
        }
        .block-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 14px;
            display: flex;
            justify-content: space-between;
        }
        .rank-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .rank-item {
            display: flex;
            gap: 10px;
            align-items: center;
        }
        .rank-num {
            width: 22px;
            height: 22px;
            text-align: center;
            line-height: 22px;
            border-radius: 4px;
            font-size: 13px;
            flex-shrink: 0;
        }
        .rank-num.top1 {background:#ff4d4f;color:#fff;}
        .rank-num.top2 {background:#ff7a45;color:#fff;}
        .rank-num.top3 {background:#ffcb45;color:#fff;}
        .rank-num.other {background:#475569;color:#cbd5e1;}
        .rank-text {
            font-size: 14px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            flex:1;
        }
        /* 广告角标 */
        .ad-mark {
            font-size:10px;
            color:#64748b;
            border:1px solid #475569;
            padding:1px 4px;
            border-radius:3px;
            flex-shrink:0;
        }

        /* 页脚 */
        .footer {
            margin-top: 40px;
            padding: 30px 20px;
            background: #1e293b;
            text-align: center;
            color: #64748b;
            font-size: 13px;
        }

        /* 移动端适配 */
        @media (max-width:992px) {
            .container {
                grid-template-columns: 1fr;
            }
            .banner {
                height: 200px;
            }
            .nav-list {
                display: none;
            }
            .search-box {
                margin:0 10px;
            }
        }
        @media (max-width:576px) {
            .video-grid {
                grid-template-columns: repeat(2,1fr);
            }
        }