:root {
            --bg-dark: #0f1117; /* 深蓝灰背景 */
            --bg-card: rgba(25, 28, 36, 0.95); /* 卡片背景 */
            --bg-hover: rgba(45, 50, 65, 0.85); /* 悬停背景 */
            --primary: #d4af37; /* 琥珀金主色 */
            --primary-dark: #b08d26; /* 深琥珀金 */
            --accent: #ffd700; /* 亮金色强调色 */
            --text-primary: #f0f0f8; /* 浅灰紫色文字 */
            --text-secondary: #a0a8c0; /* 浅灰蓝文字 */
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --transition: all 0.3s ease;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
            --glass: rgba(255, 255, 255, 0.05);
            --glow: 0 0 15px rgba(212, 175, 55, 0.3); /* 金色光晕 */
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        
        video {
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
            -webkit-user-drag: none;
            -khtml-user-drag: none;
            -moz-user-drag: none;
            -o-user-drag: none;
            /* `user-drag` 是非标准属性，已使用标准的 `-webkit-user-drag` 替代 */
            pointer-events: none;
        }
        
      
        #dplayer-container {
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
        }
        
      
        #dplayer-container video {
            pointer-events: none;
        }
        
        body {
            background: linear-gradient(135deg, #0f1117 0%, #1a1d28 100%);
            color: var(--text-primary);
            font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            min-height: 100vh;
            padding: 15px 10px;
            overflow-x: hidden;
            line-height: 1.6;
        }
        
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(circle at 10% 20%, rgba(212, 175, 55, 0.08) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(255, 215, 0, 0.05) 0%, transparent 40%);
            pointer-events: none;
            z-index: -2;
        }
        
        .container {
            max-width: 1600px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        
        header {
            display: flex;
            justify-content: space-between;
            align-items: center;
           
            padding: 0 10px;
            position: relative;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 24px;
            letter-spacing: -0.5px;
            color: var(--primary);
        }
        
        .logo i {
            color: var(--primary);
            font-size: 28px;
            transition: transform 0.5s ease;
        }
        
        .logo:hover i {
            transform: rotate(15deg);
        }
        
        /* 导航菜单样式 - 新设计 */
        .nav-menu {
            display: flex;
            gap: 5px;
            position: relative;
        }
        
        .nav-link {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            padding: 12px 20px;
            border-radius: 30px;
            transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
            position: relative;
            z-index: 1;
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(212, 175, 55, 0.2);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            overflow: hidden;
        }
        
        .nav-link i {
            font-size: 16px;
            transition: var(--transition);
        }
        
        .nav-link:hover {
            color: var(--primary);
            background: rgba(212, 175, 55, 0.15);
            border: 1px solid rgba(212, 175, 55, 0.4);
            box-shadow: 0 0 15px rgba(212, 175, 55, 0.3);
            transform: translateY(-3px);
        }
        
        .nav-link::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.2), transparent);
            transform: translateX(-100%);
            transition: transform 0.6s ease;
            z-index: -1;
            pointer-events: none;
            opacity: 0;
        }
        
        .nav-link:hover::before {
            transform: translateX(0);
            opacity: 1;
            transition-duration: 0.6s;
        }
        
        .nav-link.active {
            color: var(--accent);
            background: rgba(212, 175, 55, 0.2);
            border: 1px solid rgba(212, 175, 55, 0.5);
            box-shadow: 0 0 20px rgba(212, 175, 55, 0.4);
        }
        
        .nav-link.active::before {
            transform: translateX(0);
            opacity: 1;
            transition-duration: 0.6s;
        }
        
        /* 移动端菜单 - 优化设计 */
        .mobile-menu {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(15, 17, 23, 0.95);
            z-index: 1000;
            flex-direction: column;
            backdrop-filter: blur(10px);
            transform: translateX(100%);
            transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
            opacity: 0;
            visibility: hidden;
            display: flex;
        }
        
        .mobile-menu.active {
            transform: translateX(0);
            opacity: 1;
            visibility: visible;
        }
        
        .mobile-menu-header {
            display: flex;
            justify-content: center; /* 居中显示 */
            align-items: center;
            padding: 20px;
            border-bottom: 1px solid rgba(212, 175, 55, 0.2);
            position: relative;
            min-height: 70px;
        }
        
        .mobile-menu-center-logo {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            font-size: 24px;
            color: var(--primary);
        }
        
        .mobile-menu-logo {
            font-size: 22px;
            color: var(--primary);
            font-weight: 600;
            display: none;
            align-items: center;
            gap: 10px;
        }
        
        .mobile-menu-logo i {
            font-size: 22px;
            color: var(--primary);
        }
        
/* 移除了关闭按钮样式 */
        
        .mobile-menu-links {
            display: flex;
            flex-direction: column;
            padding: 20px;
            overflow-y: auto;
            flex-grow: 1;
        }
        
        .mobile-menu .nav-link {
            padding: 15px;
            font-size: 16px;
            width: 100%;
            text-align: left;
            transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
            border-radius: var(--radius-md);
            border-bottom: 1px solid rgba(212, 175, 55, 0.1);
            opacity: 0;
            transform: translateX(20px);
            margin-bottom: 8px;
            box-sizing: border-box;
        }
        
        .mobile-menu.active .nav-link {
            opacity: 1;
            transform: translateX(0);
            transition-delay: calc(0.05s * var(--index, 0));
        }
        
        .mobile-menu .nav-link:hover {
            background: rgba(212, 175, 55, 0.1);
            transform: translateX(5px);
            color: var(--primary);
        }
        
        .mobile-menu .nav-link.active {
            color: var(--primary);
            background: rgba(212, 175, 55, 0.15);
            box-shadow: 0 0 10px rgba(212, 175, 55, 0.2);
        }
        
        .mobile-menu .nav-link:last-child {
            border-bottom: none;
            margin-bottom: 0;
        }
        
        .mobile-menu-footer {
            padding: 20px;
            text-align: center;
            color: var(--text-secondary);
            font-size: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            background: rgba(15, 17, 23, 0.8);
            backdrop-filter: blur(20px);
        }
        
        /* DPlayer 自定义样式 */
        .player-section {
            border-radius: var(--radius-md);
            padding: 0;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid rgba(212, 175, 55, 0.2);
            background: #000;
        }
        

        
        #dplayer-container {
            width: 100%;
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
            transform: translateZ(0);
            aspect-ratio: 16/9;
        }
        
        /* DPlayer 自定义主题色 */
        .dplayer .dplayer-controller .dplayer-bar-wrap .dplayer-bar .dplayer-played {
            background: var(--accent) !important;
        }
        
        .dplayer .dplayer-controller .dplayer-bar-wrap .dplayer-bar .dplayer-played::after {
            background: var(--accent) !important;
            border-color: var(--accent) !important;
        }
        
        .dplayer .dplayer-controller .dplayer-bar-wrap .dplayer-bar .dplayer-loaded {
            background: rgba(255, 255, 255, 0.3) !important;
        }
        
        .dplayer .dplayer-controller .dplayer-icons .dplayer-volume .dplayer-thumb {
            background: var(--accent) !important;
        }
        
        .dplayer .dplayer-controller .dplayer-icons .dplayer-setting .dplayer-setting-box .dplayer-setting-speed-item.dplayer-setting-speed-item-active {
            color: var(--accent) !important;
        }
        
        .dplayer .dplayer-controller .dplayer-icons .dplayer-play-icon {
            color: var(--accent) !important;
        }
        
        .dplayer .dplayer-controller .dplayer-icons .dplayer-volume .dplayer-volume-bar .dplayer-volume-bar-inner {
            background: var(--accent) !important;
        }
        
        /* 默认隐藏控制栏 */
        .dplayer .dplayer-controller {
            opacity: 0;
            visibility: hidden;
            transition: all 1s ease;
        }
        
        .dplayer.dplayer-hide-controller .dplayer-controller {
            opacity: 0;
            visibility: hidden;
        }
        
        .dplayer:hover .dplayer-controller {
            opacity: 1;
            visibility: visible;
        }
        
        /* 隐藏DPlayer右键菜单 */
        .dplayer .dplayer-menu {
            display: none !important;
        }
        
        /* 分类导航优化 */
        .categories-container {
            position: relative;
            padding: 0;
        }
        
        .categories-scroll {
            display: flex;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
            gap: 10px;
            padding: 10px 5px;
            scroll-behavior: smooth;
            scroll-snap-type: x mandatory;
            scroll-padding: 10px;
            justify-content: center;
        }

        @media (max-width: 768px) {
            .categories-scroll {
                justify-content: flex-start;
            }
        }
        
        .categories-scroll::-webkit-scrollbar {
            display: none;
        }
        
        .category-btn {
            flex: 0 0 auto;
            background: var(--bg-card);
            color: var(--text-secondary);
            border: 1px solid rgba(212, 175, 55, 0.2);
            padding: 10px 20px;
            border-radius: var(--radius-md);
            cursor: pointer;
            font-size: 14px;
            white-space: nowrap;
            transition: var(--transition);
            box-shadow: var(--shadow);
            position: relative;
            overflow: hidden;
            font-weight: 500;
            backdrop-filter: blur(8px);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        
        .category-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.1), transparent);
            transform: translateX(-100%);
            transition: transform 0.6s ease;
        }
        
        .category-btn:hover {
            transform: translateY(-3px);
            color: var(--text-primary);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.4);
            background: var(--bg-hover);
            border-color: var(--primary);
        }
        
        .category-btn:hover::before {
            transform: translateX(100%);
        }
        
        .category-btn.active {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: white;
            box-shadow: var(--glow);
            transform: translateY(-2px);
            border-color: var(--accent);
        }
        
        /* 视频列表优化 */
        .videos-section {
            display: flex;
            justify-content: center;
        }
        
        .videos-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 20px;
            margin-top: 2px;
            max-width: 1200px;
            width: 100%;
        }
        
        .video-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
            cursor: pointer;
            position: relative;
            backdrop-filter: blur(8px);
            border: 1px solid rgba(212, 175, 55, 0.15);
            box-shadow: var(--shadow);
        }
        
        .video-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.2), transparent);
            transform: translateX(-100%);
            transition: transform 0.8s ease;
            z-index: 1;
            pointer-events: none;
        }
        
        .video-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
            z-index: 2;
            border-color: var(--primary);
        }
        
        .video-item:hover::before {
            transform: translateX(100%);
            transition-duration: 1s;
        }
        
        .thumbnail {
            position: relative;
            padding-top: 56.25%;
            background-size: cover;
            background-position: center;
            transition: var(--transition);
            transform-origin: center;
            z-index: 2;
        }
        
        .thumbnail img {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        
        .video-item:hover .thumbnail img {
            transform: scale(1.05);
        }
        
        .video-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
            padding: 15px;
            opacity: 0;
            transform: translateY(15px);
            transition: var(--transition);
        }
        
        .video-item:hover .video-overlay {
            opacity: 1;
            transform: translateY(0);
        }
        
        .video-title {
            padding: 12px 5px;
            font-size: 15px;
            text-align: center;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            line-clamp: 2;
            -webkit-box-orient: vertical;
            height: 55px;
            line-height: 1.4;
            transition: var(--transition);
            background: rgba(0, 0, 0, 0.3);
            font-weight: 500;
            color: var(--text-primary);
            margin: 0;
            position: relative;
            z-index: 2;
        }
        
        .video-item:hover .video-title {
            color: var(--primary);
            background: rgba(0, 0, 0, 0.5);
        }
        
        .video-info {
            font-size: 12px;
            color: var(--text-secondary);
            display: flex;
            gap: 8px;
            margin-top: 6px;
        }
        
        .play-icon, .folder-icon {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 50px;
            height: 50px;
            background: rgba(212, 175, 55, 0.3);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            transition: var(--transition);
            backdrop-filter: blur(5px);
            border: 2px solid rgba(255, 255, 255, 0.25);
        }
        
        .video-item:hover .play-icon,
        .video-item:hover .folder-icon {
            opacity: 1;
            transform: translate(-50%, -50%) scale(1.1);
        }
        
        .play-icon i, .folder-icon i {
            font-size: 20px;
            color: white;
        }
        
        .play-icon i {
            margin-left: 5px;
        }
        
        /* 文件夹样式 */
        .folder-item .thumbnail::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            
            z-index: 1;
        }
        
        .folder-icon {
            z-index: 2;
            background: rgba(212, 175, 55, 0.5);
        }
        
        .back-folder .folder-icon {
            background: rgba(212, 175, 55, 0.5);
        }
        
        .progress-bar {
            position: absolute;
            bottom: 0;
            left: 0;
            height: 4px;
            background: rgba(255, 255, 255, 0.15);
            width: 100%;
        }
        
        .progress {
            height: 100%;
            background: var(--accent);
            width: 0%;
            transition: width 0.4s ease;
        }
        
        .no-videos {
            grid-column: 1 / -1;
            text-align: center;
            padding: 40px 0;
            color: var(--text-secondary);
            font-size: 18px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 15px;
            backdrop-filter: blur(10px);
        }
        
        .no-videos i {
            font-size: 40px;
            color: var(--primary);
        }
        

        
        footer {
            text-align: center;
            padding: 30px 0 15px;
            color: var(--text-secondary);
            font-size: 14px;
        
            border-top: 1px solid rgba(212, 175, 55, 0.1);
        }
        
       
        
        /* 兼容性提示 */
        .compatibility-alert {
            position: fixed;
            bottom: 20px;
            left: 50%;
            transform: translateX(-50%);
            background: rgba(212, 175, 55, 0.9);
            color: #000;
            padding: 12px 25px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            z-index: 10000;
            font-weight: 500;
            box-shadow: 0 5px 15px rgba(0,0,0,0.3);
            animation: slideUp 0.5s ease-out;
            display: none;
            white-space: nowrap;
            max-width: 90%;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        @keyframes slideUp {
            from { bottom: -50px; opacity: 0; }
            to { bottom: 20px; opacity: 1; }
        }
        
        .compatibility-alert i {
            font-size: 22px;
        }
        
        .compatibility-alert .close {
            background: none;
            border: none;
            color: #000;
            font-size: 20px;
            cursor: pointer;
            margin-left: 15px;
        }
        
        /* 移动端菜单按钮 - 优化设计 */
        .mobile-menu-btn {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-secondary);
            font-size: 24px;
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            width: 40px;
            height: 40px;
            justify-content: center;
            align-items: center;
            z-index: 1001; /* 确保按钮在菜单打开时仍然可见 */
        }
        
        .mobile-menu-btn:hover {
            background: rgba(212, 175, 55, 0.1);
            color: var(--primary);
        }
        
        .mobile-menu-btn span {
            position: absolute;
            height: 3px;
            width: 24px;
            background: currentColor;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        
        .mobile-menu-btn span:nth-child(1) {
            top: 12px;
        }
        
        .mobile-menu-btn span:nth-child(2) {
            top: 18px;
        }
        
        .mobile-menu-btn span:nth-child(3) {
            top: 24px;
        }
        
        .mobile-menu-btn.active span:nth-child(1) {
            transform: rotate(45deg);
            top: 18px;
        }
        
        .mobile-menu-btn.active span:nth-child(2) {
            opacity: 0;
        }
        
        .mobile-menu-btn.active span:nth-child(3) {
            transform: rotate(-45deg);
            top: 18px;
        }
        
        /* 响应式优化 */
        @media (max-width: 1200px) {
            .videos-list {
                grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            }
        }
        
        @media (max-width: 992px) {
            .logo {
                font-size: 20px;
            }
            
            .nav-menu {
                gap: 12px;
            }
            
            .nav-link {
                font-size: 13px;
                padding: 5px 10px;
            }
        }
        
        @media (max-width: 788px) {
            body {
                padding: 15px 10px;
            }
            
            .videos-section {
                display: block;
            }
            
            .videos-list {
                grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
                gap: 15px;
                max-width: 100%;
            }
            
            .category-btn {
                padding: 8px 15px;
                font-size: 15px;
            }
            
            .logo {
                font-size: 20px;
            }
            
            .nav-menu {
                display: none;
            }
            
            .mobile-menu-btn {
                display: flex;
            }
            
            .player-section {
                padding: 0;
                border-radius: var(--radius-sm);
            }
            
            #dplayer-container {
                border-radius: var(--radius-sm);
            }
            
            .video-title {
                font-size: 13px;
                height: 38px;
            }
        }
        
        @media (max-width: 576px) {
            .videos-list {
                grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
                gap: 12px;
            }
            
            .category-btn {
                padding: 7px 12px;
                font-size: 15px;
            }
            
            .logo {
                font-size: 20px;
            }
            
            .video-title {
                font-size: 12px;
                height: 36px;
            }
            
            .no-videos {
                font-size: 16px;
                padding: 30px 0;
            }
            
            .no-videos i {
                font-size: 35px;
            }
        }
        
        @media (max-width: 480px) {
            .videos-list {
               
                gap: 10px;
            }
            
            .category-btn {
                padding: 6px 10px;
                font-size: 15px;
            }
            
            .logo {
                font-size: 20px;
            }
            
            .video-title {
                font-size: 13px;
                height: 44px;
            }
        }
        
        @media (max-width: 400px) {
            .videos-list {
                grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
            }
            
            .category-btn {
                padding: 5px 8px;
                font-size: 15px;
            }
        }