* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d);
            color: #333;
            min-height: 100vh;
            padding: 20px;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        .container {
            width: 100%;
            max-width: 900px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            overflow: hidden;
            margin: 20px 0;
        }
        
        header {
            background: linear-gradient(90deg, #2c3e50, #4a69bd);
            color: white;
            padding: 25px;
            text-align: center;
        }
        
        h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        
        .subtitle {
            font-size: 1.2rem;
            opacity: 0.9;
        }
        
        .update-container {
            padding: 20px;
        }
        
        .version {
            margin-bottom: 15px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        
        .version summary {
            padding: 18px 20px;
            background: #4a69bd;
            color: white;
            font-weight: bold;
            font-size: 1.2rem;
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.3s;
        }
        
        .version summary:hover {
            background: #3c58a8;
        }
        
        .version summary::-webkit-details-marker {
            display: none;
        }
        
        .version summary::after {
            content: '\f078';
            font-family: 'Font Awesome 5 Free';
            font-weight: 900;
            font-size: 0.9rem;
            transition: transform 0.3s ease;
        }
        
        .version[open] summary::after {
            transform: rotate(180deg);
        }
        
        .version-content {
            padding: 0 20px;
            background: #f8f9fa;
            border-left: 5px solid #4a69bd;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease, padding 0.5s ease;
        }
        
        .version[open] .version-content {
            max-height: 1000px;
            padding: 20px;
        }
        
        .update-item {
            margin-bottom: 12px;
            padding-left: 25px;
            position: relative;
            line-height: 1.5;
            opacity: 0;
            transform: translateY(-10px);
            transition: opacity 0.3s ease, transform 0.3s ease;
        }
        
        .version[open] .update-item {
            opacity: 1;
            transform: translateY(0);
        }
        
        .version[open] .update-item:nth-child(1) { transition-delay: 0.1s; }
        .version[open] .update-item:nth-child(2) { transition-delay: 0.15s; }
        .version[open] .update-item:nth-child(3) { transition-delay: 0.2s; }
        .version[open] .update-item:nth-child(4) { transition-delay: 0.25s; }
        .version[open] .update-item:nth-child(5) { transition-delay: 0.3s; }
        .version[open] .update-item:nth-child(6) { transition-delay: 0.35s; }
        .version[open] .update-item:nth-child(7) { transition-delay: 0.4s; }
        .version[open] .update-item:nth-child(8) { transition-delay: 0.45s; }
        .version[open] .update-item:nth-child(9) { transition-delay: 0.5s; }
        .version[open] .update-item:nth-child(10) { transition-delay: 0.55s; }
        
        .fix::before {
            content: "[修复] ";
            color: #e74c3c;
            font-weight: bold;
        }
        
        .add::before {
            content: "[增加] ";
            color: #27ae60;
            font-weight: bold;
        }
        
        .optimize::before {
            content: "[优化] ";
            color: #f39c12;
            font-weight: bold;
        }
        
        .delete::before {
            content: "[删除] ";
            color: #3498db;
            font-weight: bold;
        }
        
        .other::before {
            content: "[其它] ";
            color: #3498db;
            font-weight: bold;
        }
        
        .note {
            color: #7f8c8d;
            font-style: italic;
            margin-left: 10px;
        }
        
        .category {
            font-weight: bold;
            color: #2c3e50;
            margin-top: 15px;
            margin-bottom: 10px;
            padding-bottom: 5px;
            border-bottom: 1px dashed #bdc3c7;
        }
        
        .author-notes {
            background: #2c3e50;
            color: white;
            padding: 25px;
            border-radius: 10px;
            margin-top: 30px;
        }
        
        .author-notes h2 {
            margin-bottom: 15px;
            text-align: center;
            color: #fdbb2d;
        }
        
        .notes-list {
            list-style-type: none;
        }
        
        .notes-list li {
            margin-bottom: 15px;
            padding-left: 25px;
            position: relative;
        }
        
        .notes-list li::before {
            content: "\f058";
            font-family: 'Font Awesome 5 Free';
            font-weight: 900;
            color: #fdbb2d;
            position: absolute;
            left: 0;
        }
        
        footer {
            text-align: center;
            margin-top: 20px;
            color: white;
            opacity: 0.8;
            font-size: 0.9rem;
        }
        
        .controls {
            display: flex;
            gap: 10px;
            margin-bottom: 15px;
        }
        
        .controls button {
            padding: 8px 15px;
            background: #4a69bd;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: background 0.3s;
        }
        
        .controls button:hover {
            background: #3c58a8;
        }
        
        @media (max-width: 768px) {
            .container {
                border-radius: 10px;
            }
            
            h1 {
                font-size: 2rem;
            }
            
            .version summary {
                font-size: 1.1rem;
                padding: 15px;
            }
            
            .controls {
                flex-direction: column;
            }
        }