* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background-color: #f8f5f0;
            color: #333;
            line-height: 1.6;
            max-width: 100%;
            overflow-x: hidden;
            transition: background-color 0.3s, color 0.3s;
        }
        
        /* 主题切换 */
        .theme-switcher {
            position: fixed;
            top: 15px;
            right: 15px;
            z-index: 1000;
            display: flex;
            gap: 5px;
            background: white;
            border-radius: 20px;
            padding: 5px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }
        
        .theme-btn {
            background: none;
            border: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1.2rem;
            color: #7a6a5f;
            transition: all 0.3s;
        }
        
        .theme-btn.active {
            transform: scale(1.1);
            box-shadow: 0 0 0 2px currentColor;
        }
        
        /* 古风主题颜色变量 */
        body.theme-classic {
            --primary-color: #8b4513;
            --secondary-color: #d4a76a;
            --background-color: #f8f5f0;
            --card-bg: #ffffff;
            --text-color: #333333;
            --light-text: #7a6a5f;
            --border-color: #e0d6c9;
            --accent-color: #a52a2a;
        }
        
        /* 青绿主题颜色变量 */
        body.theme-green {
            --primary-color: #2d5016;
            --secondary-color: #5a8c5a;
            --background-color: #f0f5f0;
            --card-bg: #ffffff;
            --text-color: #2c3e2c;
            --light-text: #5a735a;
            --border-color: #c8d9c8;
            --accent-color: #3a6b3a;
        }
        
        /* 淡紫主题颜色变量 */
        body.theme-purple {
            --primary-color: #5a3d8c;
            --secondary-color: #9d7bd8;
            --background-color: #f5f0f8;
            --card-bg: #ffffff;
            --text-color: #3d2c5a;
            --light-text: #7a6a9f;
            --border-color: #e0d6e9;
            --accent-color: #7b3db8;
        }
        
        /* 深蓝主题颜色变量 */
        body.theme-blue {
            --primary-color: #1e3a5f;
            --secondary-color: #4a7ba6;
            --background-color: #f0f5f8;
            --card-bg: #ffffff;
            --text-color: #2c3e5a;
            --light-text: #5a6a8c;
            --border-color: #c8d6e0;
            --accent-color: #2d5a8c;
        }
        
        /* 夜间模式颜色变量 */
        body.night-mode {
            --primary-color: #d4a76a;
            --secondary-color: #a08972;
            --background-color: #1a1a1a;
            --card-bg: #2d2d2d;
            --text-color: #d9d9d9;
            --light-text: #b3b3b3;
            --border-color: #444444;
            --accent-color: #c58c5a;
        }
        
        .container {
            max-width: 100%;
            margin: 0 auto;
            padding: 10px;
        }
        
        header {
            text-align: center;
            padding: 20px 10px;
            margin-bottom: 20px;
            border-bottom: 1px solid var(--border-color);
        }
        
        h1 {
            color: var(--primary-color);
            font-size: 1.8rem;
            margin-bottom: 10px;
            position: relative;
            display: inline-block;
        }
        
        h1:after {
            content: "";
            position: absolute;
            bottom: -5px;
            left: 10%;
            width: 80%;
            height: 2px;
            background: linear-gradient(to right, transparent, var(--secondary-color), transparent);
        }
        
        .description {
            color: var(--light-text);
            font-size: 0.9rem;
            max-width: 600px;
            margin: 0 auto;
        }
        
        /* 一级栏目样式 */
        .primary-nav {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            margin-bottom: 30px;
            padding: 0 5px;
        }
        
        .primary-item {
            background-color: var(--card-bg);
            border-radius: 20px;
            padding: 12px 20px;
            cursor: pointer;
            box-shadow: 0 4px 8px rgba(139, 69, 19, 0.1);
            transition: all 0.3s ease;
            border: 1px solid var(--border-color);
            text-align: center;
            flex: 0 0 auto;
            max-width: 100%;
        }
        
        .primary-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 12px rgba(139, 69, 19, 0.15);
        }
        
        .primary-item.active {
            background-color: var(--primary-color);
            color: white;
            box-shadow: 0 6px 12px rgba(139, 69, 19, 0.2);
        }
        
        .primary-item .year {
            font-weight: bold;
            font-size: 1.1rem;
        }
        
        .primary-item .title {
            font-size: 0.9rem;
            margin-top: 3px;
            white-space: nowrap;
        }
        
        /* 二级栏目样式 */
        .secondary-container {
            margin-bottom: 25px;
        }
        
        .secondary-title {
            text-align: center;
            margin-bottom: 15px;
            color: var(--light-text);
            font-size: 1.1rem;
            font-weight: 600;
        }
        
        .secondary-nav {
            display: flex;
            overflow-x: auto;
            padding: 10px 5px;
            gap: 12px;
            margin-bottom: 20px;
            -webkit-overflow-scrolling: touch;
            scrollbar-width: thin;
        }
        
        .secondary-nav::-webkit-scrollbar {
            height: 6px;
        }
        
        .secondary-nav::-webkit-scrollbar-thumb {
            background-color: var(--secondary-color);
            border-radius: 3px;
        }
        
        .secondary-item {
            background-color: var(--card-bg);
            border-radius: 15px;
            padding: 15px;
            min-width: 140px;
            cursor: pointer;
            box-shadow: 0 3px 6px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            border: 1px solid var(--border-color);
            flex: 0 0 auto;
        }
        
        .secondary-item:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 10px rgba(0, 0, 0, 0.12);
        }
        
        .secondary-item.active {
            background-color: rgba(212, 167, 106, 0.1);
            border-color: var(--secondary-color);
            box-shadow: 0 5px 10px rgba(212, 167, 106, 0.2);
        }
        
        .secondary-item .season {
            font-weight: bold;
            color: var(--primary-color);
            font-size: 1.1rem;
            margin-bottom: 5px;
            text-align: center;
        }
        
        .secondary-item .season-en {
            font-size: 0.8rem;
            color: var(--light-text);
            text-align: center;
            margin-bottom: 8px;
        }
        
        .secondary-item .count {
            font-size: 0.8rem;
            color: var(--light-text);
            text-align: center;
        }
        
        /* 三级和四级内容样式 */
        .content-area {
            background-color: var(--card-bg);
            border-radius: 15px;
            padding: 20px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
            margin-top: 10px;
            display: none;
            border: 1px solid var(--border-color);
        }
        
        .content-area.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .content-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-color);
        }
        
        .content-title {
            color: var(--primary-color);
            font-size: 1.3rem;
            font-weight: 600;
        }
        
        .close-btn {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--light-text);
            cursor: pointer;
            width: 30px;
            height: 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: background-color 0.3s;
        }
        
        .close-btn:hover {
            background-color: rgba(212, 167, 106, 0.1);
        }
        
        .third-level {
            margin-bottom: 20px;
            padding: 15px;
            background-color: rgba(212, 167, 106, 0.05);
            border-radius: 10px;
            border-left: 4px solid var(--secondary-color);
        }
        
        .third-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--light-text);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            cursor: pointer;
            transition: color 0.3s;
        }
        
        .third-title:hover {
            color: var(--primary-color);
        }
        
        .third-title i {
            margin-right: 8px;
            color: var(--secondary-color);
            transition: transform 0.3s;
        }
        
        .third-title:hover i {
            transform: rotate(15deg);
        }
        
        .fourth-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 10px;
            margin-top: 10px;
        }
        
        .fourth-item {
            background-color: var(--card-bg);
            border-radius: 8px;
            padding: 12px;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
            border: 1px solid var(--border-color);
            transition: all 0.3s;
            cursor: pointer;
        }
        
        .fourth-item:hover {
            transform: translateY(-3px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
            border-color: var(--secondary-color);
        }
        
        .fourth-title {
            font-size: 0.95rem;
            color: var(--text-color);
            font-weight: 500;
            margin-bottom: 5px;
        }
        
        .fourth-id {
            font-size: 0.75rem;
            color: var(--light-text);
        }
        
        .work-count {
            font-size: 0.75rem;
            color: var(--primary-color);
            font-weight: 500;
            margin-top: 3px;
        }
        
        .empty-content {
            text-align: center;
            padding: 30px;
            color: var(--light-text);
            font-style: italic;
        }
        
        .empty-content i {
            font-size: 2rem;
            margin-bottom: 15px;
            display: block;
            color: var(--border-color);
        }
        
        /* 作品文章页面样式 */
        .article-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: var(--background-color);
            z-index: 2000;
            overflow-y: auto;
            display: none;
            opacity: 0;
            transition: opacity 0.3s;
        }
        
        .article-container.active {
            display: block;
            opacity: 1;
            animation: slideIn 0.4s ease;
        }
        
        @keyframes slideIn {
            from { transform: translateY(20px); opacity: 0; }
            to { transform: translateY(0); opacity: 1; }
        }
        
        .article-header {
            position: sticky;
            top: 0;
            background-color: var(--card-bg);
            padding: 15px 20px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: space-between;
            z-index: 10;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }
        
        .article-back-btn {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--primary-color);
            cursor: pointer;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            transition: background-color 0.3s;
        }
        
        .article-back-btn:hover {
            background-color: rgba(212, 167, 106, 0.1);
        }
        
        .article-title {
            font-size: 1.3rem;
            color: var(--primary-color);
            font-weight: 600;
            text-align: center;
            flex: 1;
            margin: 0 15px;
        }
        
        .article-meta {
            color: var(--light-text);
            font-size: 0.9rem;
            text-align: center;
            margin-top: 5px;
        }
        
        .article-content {
            max-width: 700px;
            margin: 0 auto;
            padding: 25px 20px;
            line-height: 1.8;
            font-size: 1.05rem;
            color: var(--text-color);
        }
        
        .article-poem-title {
            text-align: center;
            font-size: 1.5rem;
            color: var(--primary-color);
            margin: 25px 0 15px;
            padding-bottom: 10px;
            border-bottom: 1px dashed var(--secondary-color);
        }
        
        .article-poem-content {
            font-size: 1.1rem;
            line-height: 2;
            text-align: center;
            white-space: pre-line;
            margin-bottom: 25px;
            padding: 15px;
            background-color: rgba(212, 167, 106, 0.05);
            border-radius: 10px;
            border-left: 3px solid var(--secondary-color);
        }
        
        .article-poem-meta {
            text-align: center;
            color: var(--light-text);
            font-size: 0.9rem;
            margin-bottom: 30px;
            font-style: italic;
        }
        
        .article-divider {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--secondary-color), transparent);
            margin: 30px 0;
            border: none;
        }
        
        .article-note {
            background-color: rgba(160, 137, 114, 0.1);
            padding: 15px;
            border-radius: 8px;
            border-left: 4px solid var(--light-text);
            margin: 20px 0;
            font-size: 0.95rem;
            color: var(--light-text);
        }
        
        /* 主题特定样式 */
        body.theme-green .secondary-item.active,
        body.theme-green .third-level {
            background-color: rgba(90, 140, 90, 0.1);
        }
        
        body.theme-purple .secondary-item.active,
        body.theme-purple .third-level {
            background-color: rgba(157, 123, 216, 0.1);
        }
        
        body.theme-blue .secondary-item.active,
        body.theme-blue .third-level {
            background-color: rgba(74, 123, 166, 0.1);
        }
        
        body.theme-green .fourth-item:hover {
            border-color: #5a8c5a;
        }
        
        body.theme-purple .fourth-item:hover {
            border-color: #9d7bd8;
        }
        
        body.theme-blue .fourth-item:hover {
            border-color: #4a7ba6;
        }
        
        /* 响应式调整 */
        @media (max-width: 480px) {
            .primary-nav {
                gap: 8px;
            }
            
            .primary-item {
                padding: 10px 15px;
                border-radius: 15px;
                font-size: 0.9rem;
            }
            
            .secondary-item {
                min-width: 120px;
                padding: 12px;
            }
            
            .secondary-item .season {
                font-size: 1rem;
            }
            
            .content-area {
                padding: 15px;
            }
            
            .content-title {
                font-size: 1.2rem;
            }
            
            .fourth-container {
                grid-template-columns: 1fr;
            }
            
            .article-content {
                padding: 20px 15px;
            }
            
            .article-poem-content {
                font-size: 1rem;
                padding: 12px;
            }
            
            .theme-switcher {
                flex-direction: column;
                top: 15px;
                right: 10px;
            }
        }
        
        @media (min-width: 768px) {
            .container {
                max-width: 90%;
            }
            
            h1 {
                font-size: 2.2rem;
            }
            
            .primary-nav {
                gap: 15px;
            }
            
            .primary-item {
                padding: 15px 25px;
            }
        }