/* 全局样式 */
:root {
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --secondary-color: #2c3e50;
    --danger-color: #e74c3c;
    --success-color: #2ecc71;
    --text-color: #333;
    --light-gray: #f5f5f5;
    --border-color: #ddd;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f9f9f9;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

h1, h2, h3, h4 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

a {
    text-decoration: none;
    color: var(--primary-color);
}

a:hover {
    color: var(--primary-dark);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: var(--primary-dark);
    color: white;
}

.btn-primary {
    background-color: var(--primary-color);
}

.btn-secondary {
    background-color: var(--secondary-color);
}

.btn-danger {
    background-color: var(--danger-color);
}

.btn-small {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.radio-group {
    display: flex;
    gap: 1.5rem;
    margin-top: 0.5rem;
}

.radio-group label {
    display: flex;
    align-items: center;
    font-weight: normal;
    cursor: pointer;
}

.radio-group input[type="radio"] {
    width: auto;
    margin-right: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
}

.form-actions {
    margin-top: 1.5rem;
}

.form-container {
    background-color: white;
    padding: 1.5rem;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.field-desc {
    font-size: 0.8rem;
    color: #777;
    margin-top: 0.25rem;
}

/* 头部导航 */
.main-header {
    background-color: var(--secondary-color);
    padding: 1rem 0;
    color: white;
    margin-bottom: 2rem;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
}

.logo h2 {
    margin: 0;
    color: white;
}

.main-nav ul {
    display: flex;
    list-style: none;
}

.main-nav li {
    margin-left: 1.5rem;
}

.main-nav a {
    color: white;
    text-decoration: none;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary-color);
}

/* 主内容区域 */
.main-content {
    padding: 1rem;
    background-color: white;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

/* 登录页面 */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f5f5f5;
}

.login-box {
    background-color: white;
    padding: 2rem;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-box h1 {
    margin-bottom: 0.5rem;
}

.login-box h2 {
    color: #666;
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* 仪表盘 */
.dashboard-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-box {
    flex: 1;
    background-color: var(--light-gray);
    padding: 1.5rem;
    border-radius: 4px;
    text-align: center;
    min-width: 200px;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

/* 项目和版本卡片 */
.project-list,
.version-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.project-card,
.version-card {
    background-color: var(--light-gray);
    padding: 1.5rem;
    border-radius: 4px;
    border-left: 4px solid var(--primary-color);
}

.project-actions,
.version-actions {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
}

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.version-header h3 {
    margin-bottom: 0;
}

/* 文件表格 */
.files-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.files-table th,
.files-table td {
    padding: 0.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.files-table th {
    background-color: var(--light-gray);
}

/* 页面头部 */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.header-actions {
    display: flex;
    gap: 0.5rem;
}

/* 辅助类 */
.hidden {
    display: none;
}

.error-message {
    background-color: #ffebee;
    color: var(--danger-color);
    padding: 0.5rem;
    border-left: 3px solid var(--danger-color);
    margin-bottom: 1rem;
    border-radius: 4px;
}

/* 拖放上传区域 */
.drop-area {
    border: 2px dashed var(--border-color);
    border-radius: 4px;
    padding: 2rem;
    text-align: center;
    background-color: var(--light-gray);
    cursor: pointer;
    transition: background-color 0.3s, border-color 0.3s;
}

.drop-area:hover,
.drop-area.drag-active {
    background-color: rgba(52, 152, 219, 0.1);
    border-color: var(--primary-color);
}

.drop-area p {
    margin: 0;
    color: #666;
}

.browse-link {
    color: var(--primary-color);
    text-decoration: underline;
    cursor: pointer;
}

.file-list {
    margin-top: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 1rem;
    max-height: 200px;
    overflow-y: auto;
}

.file-list ul {
    list-style-type: none;
    padding: 0;
    margin: 0.5rem 0;
}

.file-list li {
    padding: 0.25rem 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-list li:last-child {
    border-bottom: none;
}

.no-data {
    padding: 2rem;
    text-align: center;
    color: #777;
    font-style: italic;
}

.action-bar {
    margin-bottom: 1rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
    }
    
    .main-nav ul {
        margin-top: 1rem;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        margin-top: 1rem;
    }
    
    .project-list,
    .version-list {
        grid-template-columns: 1fr;
    }
}