/* ================= 基础重置与字体 ================= */
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif; line-height: 1.5; }
        body { background-color: #f9fafb; color: #333; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 16px; }
        a { text-decoration: none; color: inherit; }

        /* ================= 顶部导航 ================= */
        .header { background-color: #fff; box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1); position: sticky; top: 0; z-index: 50; }
        .top-bar { background: linear-gradient(to right, #2563eb, #9333ea); color: white; padding: 8px 0; font-size: 14px; }
        .top-bar .container { display: flex; justify-content: space-between; align-items: center; }
        .nav-bar { padding: 16px 0 0 0; }
        .nav-main { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
        
        .logo-area { display: flex; align-items: center; gap: 8px; }
        .logo-icon { background: linear-gradient(to right, #2563eb, #9333ea); color: white; padding: 8px; border-radius: 8px; display: flex; align-items: center; justify-content: center; }
        .logo-text h1 { font-size: 24px; font-weight: 700; color: #1f2937; line-height: 1.2; }
        .logo-text p { font-size: 14px; color: #4b5563; }
        
        .search-area { flex: 1; max-width: 600px; margin: 0 32px; position: relative; }
        .search-input { width: 100%; padding: 12px 48px 12px 16px; border: 2px solid #d1d5db; border-radius: 9999px; outline: none; transition: border-color 0.3s; font-size: 14px; }
        .search-input:focus { border-color: #2563eb; }
        .search-btn { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); background-color: #2563eb; color: white; border: none; width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: background-color 0.3s; }
        .search-btn:hover { background-color: #1d4ed8; }
        
        .login-btn { background-color: #2563eb; color: white; padding: 8px 24px; border: none; border-radius: 9999px; cursor: pointer; transition: background-color 0.3s; font-weight: 500; }
        .login-btn:hover { background-color: #1d4ed8; }

        .nav-links { border-top: 1px solid #e5e7eb; display: flex; gap: 32px; overflow-x: auto; padding-top: 16px; padding-bottom: 12px; }
        .nav-link { font-weight: 500; font-size: 15px; padding-bottom: 12px; border-bottom: 2px solid transparent; transition: all 0.3s; white-space: nowrap; margin-bottom: -12px; color: #374151; }
        .nav-link:hover, .nav-link.active { color: #2563eb; border-bottom-color: #2563eb; }
        
        /* ================= 主体内容 ================= */
        .main-content { padding: 32px 16px; min-height: 60vh; }

        .hero-banner { background: linear-gradient(to right, #2563eb, #9333ea, #db2777); border-radius: 16px; padding: 32px; color: white; margin-bottom: 48px; }
        .hero-title { font-size: 36px; font-weight: 700; margin-bottom: 16px; }
        .hero-subtitle { font-size: 20px; opacity: 0.9; margin-bottom: 24px; }
        .hero-tags { display: flex; flex-wrap: wrap; gap: 16px; }
        .hero-tag { display: flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, 0.2); padding: 8px 16px; border-radius: 9999px; font-size: 14px; }

        /* 板块标题栏 */
        .section-wrapper { margin-bottom: 48px; }
        .section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
        .section-title { font-size: 24px; font-weight: 700; color: #1f2937; display: flex; align-items: center; margin: 0; }
        .section-title svg { margin-right: 8px; }
        .view-more { display: flex; align-items: center; color: #2563eb; text-decoration: none; font-size: 16px; transition: color 0.3s; }
        .view-more:hover { color: #1e40af; }
        .view-more svg { margin-left: 4px; }

        /* 视频网格 */
        .video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
        .video-card { background: white; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); transition: box-shadow 0.3s; cursor: pointer; text-decoration: none; display: block; }
        .video-card:hover { box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); }
        .badge-duration { bottom: 8px; right: 8px; background-color: rgba(0,0,0,0.7); display: flex; align-items: center; gap: 4px;}
        .thumbnail-container { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
        .thumbnail-container img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
        .video-card:hover .thumbnail-container img { transform: scale(1.05); }

        .play-overlay { position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,0); display: flex; align-items: center; justify-content: center; transition: background 0.3s; }
        .play-btn { background: white; color: #2563eb; border: none; width: 48px; height: 48px; border-radius: 50%; cursor: pointer; transform: scale(0); transition: transform 0.3s; box-shadow: 0 4px 6px rgba(0,0,0,0.1); display: flex; align-items: center; justify-content: center; }
        .video-card:hover .play-overlay { background: rgba(0,0,0,0.3); }
        .video-card:hover .play-btn { transform: scale(1); }

        .badge { position: absolute; padding: 4px 8px; font-size: 12px; font-weight: 600; border-radius: 4px; color: white; }
        .badge-quality { top: 8px; left: 8px; }
        .badge-vip { top: 8px; right: 8px; background-color: #eab308; }
        .badge-duration { bottom: 8px; right: 8px; background-color: rgba(0,0,0,0.7); }
        .bg-red { background-color: #dc2626; }
        .bg-blue { background-color: #2563eb; }
        .bg-green { background-color: #16a34a; }

        .card-info { padding: 16px; }
        .card-title { font-size: 16px; font-weight: 600; color: #1f2937; margin-bottom: 8px; transition: color 0.3s; }
        .video-card:hover .card-title { color: #2563eb; }
        .card-desc { font-size: 14px; color: #4b5563; margin-bottom: 12px; }
        .line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .tags { display: flex; gap: 8px; margin-bottom: 12px; }
        .tag { padding: 4px 8px; font-size: 12px; border-radius: 9999px; }
        .tag-category { background: #dbeafe; color: #1e40af; }
        .tag-sub { background: #f3e8ff; color: #6b21a8; }
        .card-meta { display: flex; justify-content: space-between; font-size: 14px; color: #6b7280; }

        /* 分类浏览卡片 */
        .category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
        .category-card { background: white; border-radius: 12px; padding: 24px; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); text-decoration: none; color: inherit; display: block; transition: all 0.3s; }
        .category-card:hover { box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); }
        .category-icon { font-size: 36px; margin-bottom: 16px; display: block; }
        .category-title { font-size: 20px; font-weight: 600; color: #1f2937; margin-bottom: 8px; transition: color 0.3s;}
        .category-card:hover .category-title { color: #2563eb; }
        .category-desc { color: #4b5563; font-size: 14px; margin-bottom: 16px; }
        .category-link { display: flex; align-items: center; color: #2563eb; font-size: 14px; font-weight: 500; transition: transform 0.2s;}
        .category-card:hover .category-link svg { transform: translateX(4px); }
        
                /* ================= 列表页主体布局 ================= */
        .main-content { padding: 32px 16px; min-height: 60vh; }
        
        /* 面包屑导航 */
        .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: #6b7280; margin-bottom: 24px; }
        .breadcrumb a { display: flex; align-items: center; transition: color 0.2s; }
        .breadcrumb a:hover { color: #2563eb; }
        .breadcrumb svg { width: 16px; height: 16px; margin-right: 4px; }
        .breadcrumb span { color: #1f2937; font-weight: 500; }

        .list-layout { display: flex; gap: 32px; align-items: flex-start; }

        /* 左侧筛选侧边栏 */
        .sidebar { width: 320px; flex-shrink: 0; background: white; border-radius: 12px; padding: 24px; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); }
        @media (max-width: 1024px) { .sidebar { display: none; /* 移动端隐藏侧边栏 */ } }
        
        .sidebar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
        .sidebar-title { font-size: 18px; font-weight: 600; color: #1f2937; display: flex; align-items: center; }
        .sidebar-title svg { width: 20px; height: 20px; margin-right: 8px; }
        .clear-filters { color: #2563eb; font-size: 14px; font-weight: 500; background: none; border: none; cursor: pointer; }
        .clear-filters:hover { color: #1e40af; }

        .filter-group { margin-bottom: 24px; }
        .filter-group-title { font-size: 14px; font-weight: 500; color: #374151; margin-bottom: 12px; display: block; }
        
        /* 块级筛选按钮（分类、时长、地区等） */
        .filter-block { display: block; width: 100%; text-align: left; padding: 8px 12px; font-size: 14px; color: #4b5563; border-radius: 8px; margin-bottom: 4px; transition: all 0.2s; border: none; background: transparent; cursor: pointer; }
        .filter-block:hover { background-color: #f3f4f6; }
        /* 后台对接提示：当前选中的分类加上 active-blue 类名 */
        .filter-block.active-blue { background-color: #dbeafe; color: #1e40af; font-weight: 500; }
        .filter-block.active-green { background-color: #dcfce7; color: #166534; font-weight: 500; }
        .filter-block.active-orange { background-color: #ffedd5; color: #9a3412; font-weight: 500; }

        /* 行内筛选按钮（画质、年份等） */
        .filter-inline-wrap { display: flex; flex-wrap: wrap; gap: 8px; }
        .filter-inline { padding: 4px 12px; font-size: 14px; border: 1px solid #d1d5db; border-radius: 9999px; color: #4b5563; cursor: pointer; background: transparent; transition: all 0.2s; }
        .filter-inline:hover { border-color: #2563eb; color: #2563eb; }
        /* 后台对接提示：当前选中的画质/年份加上 active 类名 */
        .filter-inline.active { background-color: #2563eb; color: white; border-color: #2563eb; }
        .filter-inline.active-purple { background-color: #9333ea; color: white; border-color: #9333ea; }

        /* 右侧主内容区 */
        .main-list { flex: 1; min-width: 0; }
        .list-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
        .list-title-area { display: flex; align-items: center; gap: 16px; }
        .list-title { font-size: 20px; font-weight: 600; color: #1f2937; }
        .list-count { font-size: 14px; color: #6b7280; }

        /* ================= 翻页器 Pagination ================= */
        .pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 48px; margin-bottom: 24px; }
        .page-btn { padding: 8px 16px; border: 1px solid #d1d5db; border-radius: 8px; background: white; color: #374151; font-size: 14px; transition: all 0.2s; cursor: pointer; }
        .page-btn:hover:not(.disabled):not(.active) { background: #f9fafb; }
        .page-btn.active { background: #2563eb; color: white; border-color: #2563eb; }
        .page-btn.disabled { opacity: 0.5; cursor: not-allowed; }

        /* ================= 播放页面布局 ================= */
        .main-content { padding: 32px 16px; min-height: 60vh; }
        
        /* 面包屑导航 */
        .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: #6b7280; margin-bottom: 24px; }
        .breadcrumb a { display: flex; align-items: center; transition: color 0.2s; }
        .breadcrumb a:hover { color: #2563eb; }
        .breadcrumb svg { width: 16px; height: 16px; margin-right: 4px; }
        .breadcrumb span { color: #1f2937; font-weight: 500; }

        .play-layout { display: flex; gap: 32px; align-items: flex-start; }

        /* ================= 左侧播放区与简介 ================= */
        .play-main { flex: 1; min-width: 0; background: white; border-radius: 12px; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); overflow: hidden; }
        
        /* 播放器容器 */
        .player-wrapper { width: 100%; background-color: #000; aspect-ratio: 16 / 9; position: relative; }
        .player-wrapper video { width: 100%; height: 100%; object-fit: contain; }

        /* 视频详情区域 */
        .video-details { padding: 24px; }
        .video-title { font-size: 24px; font-weight: 700; color: #1f2937; margin-bottom: 16px; line-height: 1.4; }
        
        /* 元数据区 (播放量、点赞、日期等) */
        .video-meta-bar { display: flex; justify-content: space-between; align-items: center; padding-bottom: 16px; border-bottom: 1px solid #e5e7eb; margin-bottom: 16px; flex-wrap: wrap; gap: 16px; }
        .meta-stats { display: flex; align-items: center; gap: 24px; color: #6b7280; font-size: 14px; }
        .meta-item { display: flex; align-items: center; gap: 6px; }
        .meta-item svg { width: 18px; height: 18px; }
        .meta-rating { color: #eab308; font-weight: 600; }
        
        .action-buttons { display: flex; gap: 12px; }
        .action-btn { display: flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 9999px; border: 1px solid #d1d5db; background: transparent; color: #4b5563; font-size: 14px; cursor: pointer; transition: all 0.2s; font-weight: 500; }
        .action-btn:hover { background-color: #f3f4f6; color: #1f2937; border-color: #9ca3af; }
        .action-btn.active-like { color: #ef4444; border-color: #fca5a5; background-color: #fef2f2; }

        /* 视频属性 (标签、导演、演员) */
        .video-attributes { display: flex; flex-wrap: wrap; gap: 24px; margin-bottom: 16px; font-size: 14px; color: #4b5563; }
        .attr-item strong { color: #1f2937; font-weight: 600; margin-right: 4px; }
        .tags-list { display: flex; gap: 8px; align-items: center; }
        .tag-pill { background: #f3f4f6; color: #4b5563; padding: 2px 10px; border-radius: 9999px; font-size: 12px; text-decoration: none; transition: background 0.2s; }
        .tag-pill:hover { background: #e5e7eb; color: #1f2937; }

        /* 视频简介 */
        .video-description { font-size: 15px; color: #4b5563; line-height: 1.7; background-color: #f9fafb; padding: 16px; border-radius: 8px; margin-top: 16px; }
        .desc-title { font-weight: 600; color: #1f2937; margin-bottom: 8px; display: block; }

        /* ================= 右侧相关推荐侧边栏 ================= */
        .play-sidebar { width: 350px; flex-shrink: 0; }
        @media (max-width: 1024px) { .play-layout { flex-direction: column; } .play-sidebar { width: 100%; } }

        .sidebar-title { font-size: 18px; font-weight: 700; color: #1f2937; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
        .sidebar-title svg { color: #2563eb; }

        /* 侧边栏视频列表 */
        .related-list { display: flex; flex-direction: column; gap: 16px; }
        .related-card { display: flex; gap: 12px; text-decoration: none; group; background: white; padding: 8px; border-radius: 8px; transition: background 0.2s; }
        .related-card:hover { background: #f3f4f6; }
        
        .rel-thumb { width: 140px; height: 80px; position: relative; border-radius: 6px; overflow: hidden; flex-shrink: 0; }
        .rel-thumb img { width: 100%; height: 100%; object-fit: cover; }
        .rel-duration { position: absolute; bottom: 4px; right: 4px; background: rgba(0,0,0,0.7); color: white; font-size: 11px; padding: 2px 4px; border-radius: 4px; }
        
        .rel-info { display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; padding: 2px 0; }
        .rel-title { font-size: 14px; font-weight: 600; color: #1f2937; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: color 0.2s; }
        .related-card:hover .rel-title { color: #2563eb; }
        .rel-meta { font-size: 12px; color: #6b7280; display: flex; flex-direction: column; gap: 2px; }
        
        /* ================= 底部版权 Footer ================= */
        /* 同前代码，为缩减篇幅省略部分相同CSS，已在下方HTML中整合 */
        .footer { background-color: #111827; color: white; padding-top: 48px; margin-top: 48px; }
        .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 32px; padding-bottom: 48px; }
        .footer-col-title { font-size: 18px; font-weight: 700; color: #60a5fa; margin-bottom: 16px; }
        .footer-desc { color: #d1d5db; font-size: 14px; line-height: 1.6; margin-bottom: 16px; }
        .footer-list { list-style: none; }
        .footer-list li { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 12px; color: #d1d5db; font-size: 14px; }
        .footer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
        .footer-link { color: #d1d5db; text-decoration: none; transition: color 0.3s; font-size: 14px; }
        .footer-link:hover { color: #60a5fa; }
        .footer-bottom { background-color: #1f2937; padding: 24px 0; text-align: center; font-size: 12px; color: #6b7280; }
        .seo-texts{font-size:14px;color:#9ca3af;line-height:1.625}
        .seo-texts p{margin-bottom:8px}
        .seo-texts p:last-child{margin-bottom:0}
        .seo-texts strong{color:#d1d5db;font-weight:600}