/* 基础样式 */
body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f5f5;
}

.container {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 30px;
}

h1 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 30px;
    font-size: 2.2em;
}

/* 版本区块样式 */
.version-section {
    margin-bottom: 40px;
    padding: 20px;
    border-radius: 6px;
}

.version-section h2 {
    color: #fff;
    padding: 10px 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 1.5em;
}

.version-section:nth-child(1) h2 {
    background-color: #27ae60; /* stable版本颜色 */
}

.version-section:nth-child(2) h2 {
    background-color: #3498db; /* nightly版本颜色 */
}

/* 软件分类样式 */
.software-section {
    margin-bottom: 25px;
}

.software-section h3 {
    color: #2c3e50;
    border-bottom: 2px solid #eee;
    padding-bottom: 8px;
    margin-bottom: 15px;
    font-size: 1.2em;
}

/* 下载项样式 */
.download-items {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 15px;
}

.download-items li {
    background-color: #f8f9fa;
    border-radius: 4px;
    padding: 10px;
    transition: all 0.2s ease;
}

.download-items li:hover {
    background-color: #e9ecef;
    transform: translateY(-2px);
}

.download-items a {
    color: #2980b9;
    text-decoration: none;
    display: block;
    padding: 8px;
}

.download-items a:hover {
    color: #3498db;
    text-decoration: underline;
}

/* 加载动画样式 */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 错误提示样式 */
.error {
    color: #e74c3c;
    text-align: center;
    padding: 20px;
    background-color: #fdecea;
    border-radius: 4px;
}

/* 公告区域样式 */
.announcement {
    background-color: #f8f9fa;
    border-left: 4px solid #3498db;
    padding: 20px;
    margin-bottom: 30px;
    border-radius: 4px;
}

.announcement h3 {
    color: #2c3e50;
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.3em;
}

.announcement p {
    margin: 10px 0;
    line-height: 1.5;
}

.announcement a {
    color: #2980b9;
    text-decoration: none;
}

.announcement a:hover {
    color: #3498db;
    text-decoration: underline;
}

.update-time {
    font-weight: bold;
    color: #27ae60;
}

/* 最新版标记样式 */
.latest-item {
    background-color: #fff8e6;
    border-left: 4px solid #ff9800;
    box-shadow: 0 2px 5px rgba(255, 152, 0, 0.1);
}

.latest-tag {
    color: #ff5722;
    font-weight: bold;
    font-size: 0.9em;
    margin-left: 5px;
}

/* Footer样式 */
.footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    color: #7f8c8d;
    font-size: 0.9em;
}

/* 折叠列表相关样式 */
.hidden-item {
    display: none;
}

.toggle-btn {
    background: none;
    border: none;
    color: #3498db;
    cursor: pointer;
    font-size: 0.9em;
    margin-top: 10px;
    padding: 5px 10px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.toggle-btn:hover {
    background-color: #f0f0f0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .download-items {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 15px;
    }
    
    .footer {
        padding: 15px;
    }
    
    .toggle-btn {
        width: 100%;
        text-align: center;
    }
}