/* 基础样式 */
        body {
            overflow-x: hidden;
            background-attachment: fixed;
            background-size: cover;
            background-position: center;
            transition: background-image 1.5s ease-in-out;
        }
        
        /* 视频背景容器 */
        .video-banner-container {
            position: relative;
            height: 30vh;
            min-height: 240px;
            overflow: hidden;
        }        
        .video-banner {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            z-index: 1;
        }
        
        .video-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(to bottom, rgba(255,255,255,0.1), rgba(255,255,255,0.3));
            z-index: 2;
        }
        
        
        /* 会员登录相关样式 */
        .log-in {
            position: relative;
        }
        
        .button-group {
            position: relative;
            display: inline-block;
            width: auto;
            height: auto;
        }
        
        /* 下拉菜单默认隐藏 */
		.drop-menu {
			display:none;
			position: absolute;
			width: 300px;
			background: #fff;
			top: 70px;
			right: 0;
			z-index: 9999;
			box-shadow: 0 8px 16px 0 rgba(7, 17, 27, 0.2);
			border-radius: 8px;	
		}
        
        /* 下拉菜单内容样式 */
        .drop-menu ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        
        .drop-menu li {
            margin: 0;
            padding: 0;
        }
        
        .drop-menu a {
            display: block;
            padding: 8px 15px;
            color: #333;
            text-decoration: none;
            transition: background-color 0.2s ease;
        }
        
        .drop-menu a:hover {
            background-color: #f5f5f5;
        }
        
        /* 圆形头像样式 */
        .radius-circle {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid #f0f0f0;
        }

        /* 会员区域样式 */
        .member-area {
            position: absolute;
            top: 20px;
            right: 20px;
            z-index: 20;
            display: flex;
            align-items: center;
            gap: 15px;
        }
		.member-area .radius-circle {
			width: 40px;
			height: 40px;
			border-radius: 20px;
			margin: 25px 5px 15px 5px;
		}
		.badge-corner{
			margin-left:-5px;
			padding-top:5px;
		}
        
        /* 搜索框样式 */
        .search-container {
            position: absolute;
            top: 20px;
            left: 20px;
            z-index: 20;
            display: flex;
            align-items: center;
        }
        
        .search-container form {
            display: flex;
            align-items: center;
        }
        
        .search-box {
            background: rgba(255, 255, 255, 0.8);
            border: none;
            border-radius: 20px 0 0 20px;
            padding: 6px 15px;
            width: 200px;
            height: 32px;
            box-sizing: border-box;
            transition: width 0.3s ease;
            margin: 0;
            vertical-align: middle;
        }
        
        .search-box:focus {
            width: 250px;
            outline: none;
            box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.5);
        }
        
        .search-btn {
            background: #3b82f6;
            color: white;
            border: none;
            border-radius: 0 20px 20px 0;
            padding: 6px 12px;
            height: 32px;
            box-sizing: border-box;
            cursor: pointer;
            transition: background-color 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0;
            vertical-align: middle;
        }
        
        .search-btn:hover {
            background: #2563eb;
        }
        
        .member-btn {
            background: rgba(255, 255, 255, 0.8);
            color: #1e293b;
            border: none;
            border-radius: 20px;
            padding: 6px 15px;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .member-btn:hover {
            background: white;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .user-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            object-fit: cover;
            border: 2px solid white;
        }
        
        /* 导航动画 */
        .nav-item {
            position: relative;
            transition: all 0.3s ease;
        }
        
        .nav-item::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -4px;
            left: 0;
            background-color: #06b6d4;
            transition: width 0.3s ease;
        }
        
        .nav-item:hover::after {
            width: 100%;
        }
        
        /* 页面内容容器 */
        .page-container {
            min-height: calc(50vh - 120px);
        }
        
        .page-content {
            display: none;
            opacity: 0;
            transition: opacity 0.5s ease;
        }
        
        .page-content.active {
            display: block;
            animation: fadeIn 0.8s ease forwards;
        }
        
        /* 滚动条美化 - 蓝绿色系 */
        ::-webkit-scrollbar {
            width: 8px;
        }
        
        ::-webkit-scrollbar-track {
            background: rgba(0, 0, 0, 0.05);
        }
        
        ::-webkit-scrollbar-thumb {
            background: rgba(6, 182, 212, 0.6);
            border-radius: 4px;
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: rgba(6, 182, 212, 0.8);
        }
        
        /* 音乐播放器样式 */
        .music-player {
            position: fixed;
            bottom: 20px;
            right: 20px;
            z-index: 100;
            transition: transform 0.3s ease;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 30px;
            padding: 10px 15px;
            display: flex;
            align-items: center;
            gap: 15px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }
        
        .music-player.minimized {
            transform: translateY(80px);
        }
        
        .music-controls {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .music-control-btn {
            background: none;
            border: none;
            color: #1e293b;
            cursor: pointer;
            transition: color 0.2s ease;
        }
        
        .music-control-btn:hover {
            color: #3b82f6;
        }
        
        .music-info {
            max-width: 200px;
            overflow: hidden;
        }
        
        .music-title {
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        
        .music-progress {
            width: 150px;
            height: 4px;
            background: #e0e0e0;
            border-radius: 2px;
            cursor: pointer;
            position: relative;
        }
        
        .music-progress-bar {
            position: absolute;
            height: 100%;
            background: #3b82f6;
            border-radius: 2px;
            width: 0%;
        }
        
        /* 音乐播放提示 */
        .music-prompt {
            position: fixed;
            bottom: 100px;
            right: 20px;
            background: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 10px 15px;
            border-radius: 8px;
            font-size: 14px;
            z-index: 99;
            opacity: 0;
            transition: opacity 0.3s ease;
            pointer-events: none;
        }
        
        .music-prompt.show {
            opacity: 1;
        }
        
        /* 内容卡片样式 - 16:9缩略图 */
        .content-card {
            background: rgba(255, 255, 255, 0.7);
            border-radius: 10px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        
        .content-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        }
        
        .content-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        
        .content-card-info {
            padding: 15px;
        }
        
        .content-card-title {
            font-weight: 600;
            margin-bottom: 5px;
            color: #3b82f6;
            transition: color 0.2s ease;
        }
        
        .content-card:hover .content-card-title {
            color: #2563eb;
        }
        
        .content-card-desc {
            font-size: 14px;
            color: #1e293b;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        
        .content-card-meta {
            display: flex;
            justify-content: space-between;
            font-size: 12px;
            color: #64748b;
        }
        
        /* 图集样式 */
        .gallery-item {
            position: relative;
            overflow: hidden;
            border-radius: 10px;
        }
        
        .gallery-item img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            transition: transform 0.3s ease;
        }
        
        .gallery-item:hover img {
            transform: scale(1.05);
        }
        
        .gallery-item-title {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
            color: white;
            padding: 10px;
            font-weight: 500;
        }
        
        /* 音像栏目方格展示 */
        .audio-video-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
            margin-bottom: 20px;
        }
        
        /* 子栏目分栏样式 - 分版块显示 */
        .subcategories {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        
        .subcategory-item {
            background: rgba(255, 255, 255, 0.7);
            border-radius: 10px;
            padding: 15px;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .subcategory-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        .subcategory-item h3 {
            color: #3b82f6;
            margin-bottom: 5px;
            display: flex;
            align-items: center;
        }
        
        .subcategory-item h3 i {
            margin-right: 8px;
        }
        
        .subcategory-item p {
            font-size: 14px;
            color: #1e293b;
            margin-bottom: 10px;
        }
        
        .subcategory-item .item-count {
            font-size: 12px;
            color: #64748b;
        }
        
        /* 子栏目版块 */
        .category-section {
            margin-bottom: 40px;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        }
        
        .category-section:last-child {
            border-bottom: none;
            margin-bottom: 20px;
        }
        
        .category-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .category-title {
            font-size: 1.5rem;
            color: #3b82f6;
            display: flex;
            align-items: center;
        }
        
        .category-title i {
            margin-right: 10px;
        }
        
        /* 笔记簿文章列表 - 统一缩略图大小 */
        .notes-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin-bottom: 20px;
        }
        
        .note-card {
            display: flex;
            flex-direction: column;
            height: 100%;
        }
        
        .note-card-img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-radius: 10px 10px 0 0;
        }
        
        /* 站长头像样式 - 圆形居中 */
        .站长-intro {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 10px;
            padding: 20px;
        }
        
        .站长-avatar {
            width: 120px;
            height: 120px;
            border-radius: 50%;
            object-fit: cover;
			margin-top:-70px;
            margin-bottom: 15px;
            border: 3px solid #fff;
			box-shadow: 5px 5px 10px 5px rgba(0, 0, 0, 0.5);
        }
        
        .站长-info h3 {
            color: #3b82f6;
            margin-bottom: 10px;
        }
        
        /* 工具箱页面样式 */
        .tools-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 20px;
        }
        
        .tool-card {
            background: rgba(255, 255, 255, 0.7);
            border-radius: 10px;
            padding: 20px;
            text-align: center;
            transition: all 0.3s ease;
            cursor: pointer;
            background-color: rgba(71, 71, 71, 0.1);
        }
        
        .tool-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
            background: rgba(255, 255, 255, 0.9);
        }
        
        .tool-icon {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 150px;
            margin-bottom: 10px;            
        }
        
        .tool-icon img {
            display: block;
            max-width: 100%;
            max-height: 100%;
            border-radius: 15%;
        }
        
        .tool-name {
            font-weight: 600;
            margin-bottom: 5px;
            color: #1e293b;
        }
        
        .tool-desc {
            font-size: 14px;
            color: #64748b;
        }
        
        /* 加载更多按钮 */
        .load-more-btn {
            display: inline-block;
            background: #3b82f6;
            color: white;
            padding: 8px 20px;
            border-radius: 20px;
            margin: 20px auto;
            cursor: pointer;
            transition: background-color 0.3s ease;
            border: none;
        }
        
        .load-more-btn:hover {
            background: #2563eb;
        }
        
        .load-more-container {
            text-align: center;
        }

        /* 全屏浮动层 */
        .fullscreen-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            z-index: 2000;
        }
        
        .fullscreen-modal-content {
            width: 100%;
            height: 100%;
            position: relative;
			background-color:transparent;
        }
        
        .fullscreen-iframe {
            width: 100%;
            height: 100%;
            border: none;
			background-color:transparent;
        }
        
        .close-fullscreen {
            position: absolute;
            top: 5px;
            right: 5px;
            font-size: 30px;
            color: white;
            background: rgba(255, 0, 0, 0.5);
            width: 32px;
            height: 32px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            z-index: 2001;
            transition: background-color 0.3s ease;
        }
        
        .close-fullscreen:hover {
            background: rgba(0, 0, 0, 0.8);
        }
        
        /* 响应式调整 */
        @media (max-width: 768px) {
            .video-banner-container {
                height: 40vh;
                min-height: 300px;
            }
            
            .search-container {
                top: 10px;
                left: 10px;
            }
            
            .search-box {
                width: 150px;
                height: 32px;
                font-size: 12px;
                box-sizing: border-box;
            }
            
            .search-btn {
                padding: 6px 10px;
                height: 32px;
                font-size: 12px;
                box-sizing: border-box;
                display: flex;
                align-items: center;
                justify-content: center;
            }
            
            .search-box:focus {
                width: 180px;
            }
            
            .member-area {
                top: 10px;
                right: 10px;
                gap: 8px;
            }
            
            .member-btn {
                padding: 4px 10px;
                font-size: 12px;
            }
            
            .nav-links {
                overflow-x: auto;
                justify-content: flex-start !important;
                padding-bottom: 10px;
            }
            
            .nav-item {
                margin: 0 10px !important;
                white-space: nowrap;
            }
            
            .subcategories, .notes-grid, .audio-video-grid {
                grid-template-columns: 1fr;
            }
            
            /* 音乐播放器响应式 */
            .music-player {
                width: calc(100% - 40px);
                justify-content: space-between;
            }
            
            .music-info, .music-progress {
                display: none;
            }
        }