/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* 登录页面样式 */
.login-container {
    max-width: 500px;
    margin: 50px auto;
    padding: 30px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.login-container h1 {
    margin-bottom: 30px;
    color: #2c3e50;
}

/* 角色切换标签 */
.role-tabs {
    display: flex;
    margin-bottom: 25px;
    justify-content: center;
    border-bottom: 1px solid #e0e0e0;
}

.role-tab {
    padding: 10px 20px;
    background-color: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-size: 16px;
    color: #666;
    transition: all 0.3s ease;
}

.role-tab.active {
    color: #3498db;
    border-bottom-color: #3498db;
    font-weight: bold;
}

/* 表单样式 */
.login-form, .form-container {
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: #555;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* 按钮样式 */
.login-btn, .btn {
    width: 100%;
    padding: 12px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.login-btn:hover, .btn:hover {
    background-color: #2980b9;
}

.btn-secondary {
    background-color: #95a5a6;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.btn-success {
    background-color: #2ecc71;
}

.btn-success:hover {
    background-color: #27ae60;
}

.btn-danger {
    background-color: #e74c3c;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-small {
    padding: 6px 12px;
    font-size: 14px;
}

/* 错误信息样式 */
.error-message {
    color: #e74c3c;
    margin-bottom: 15px;
    text-align: left;
}

.success-message {
    color: #2ecc71;
    margin-bottom: 15px;
}

/* 测试账号信息样式 */
.test-accounts {
    margin-top: 30px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 4px;
    text-align: left;
}

.test-accounts h3 {
    margin-bottom: 10px;
    color: #555;
}

.test-accounts p {
    margin-bottom: 5px;
    font-size: 14px;
}

/* 导航栏样式 */
.navbar {
    background-color: #2c3e50;
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.navbar h1 {
    font-size: 20px;
    margin: 0;
}

.navbar .user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.navbar .role {
    background-color: #3498db;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: bold;
}

.navbar .logout-btn {
    background-color: #e74c3c;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.3s ease;
}

.navbar .logout-btn:hover {
    background-color: #c0392b;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    min-height: calc(100vh - 120px);
}

/* 页面标题样式 */
.page-title {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
}

/* 选项卡样式 */
.tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 1px solid #e0e0e0;
}

.tab {
    padding: 10px 20px;
    background-color: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-size: 16px;
    color: #666;
    transition: all 0.3s ease;
}

.tab.active {
    color: #3498db;
    border-bottom-color: #3498db;
    font-weight: bold;
}

/* 工具栏样式 */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.toolbar .filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* 表格样式 */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.data-table th,
.data-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

.data-table th {
    background-color: #f8f9fa;
    font-weight: bold;
    color: #2c3e50;
    white-space: nowrap;
}

.data-table tr:hover {
    background-color: #f5f7fa;
}

.data-table .status {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: bold;
}

.status.pending {
    background-color: #f39c12;
    color: white;
}

.status.approved {
    background-color: #2ecc71;
    color: white;
}

.status.rejected {
    background-color: #e74c3c;
    color: white;
}

/* 卡片样式 */
.card {
    background-color: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.card-title {
    font-size: 18px;
    margin-bottom: 15px;
    color: #2c3e50;
    font-weight: bold;
}

/* 统计图表容器 */
.chart-container {
    width: 100%;
    height: 400px;
    margin: 20px 0;
    background-color: white;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 20px;
}

/* 文件上传区域样式 */
.upload-area {
    border: 2px dashed #3498db;
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    margin-bottom: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: #f8f9fa;
}

.upload-area:hover {
    background-color: #eaf2f8;
    border-color: #2980b9;
}

.upload-area.dragover {
    background-color: #d5e8f7;
    border-color: #1abc9c;
}

.upload-area input[type="file"] {
    display: none;
}

.upload-preview {
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.preview-item {
    position: relative;
    width: 150px;
    height: 150px;
    border: 1px solid #ddd;
    border-radius: 4px;
    overflow: hidden;
}

.preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.preview-item .preview-remove {
    position: absolute;
    top: 5px;
    right: 5px;
    background-color: rgba(231, 76, 60, 0.8);
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preview-item .preview-remove:hover {
    background-color: #c0392b;
}

/* 审核区域样式 */
.audit-section {
    margin-top: 30px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
}

.audit-buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .role-tabs {
        flex-direction: column;
    }
    
    .role-tab {
        margin-bottom: 10px;
    }
    
    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .toolbar .filters {
        flex-direction: column;
    }
    
    .data-table {
        font-size: 14px;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px;
    }
    
    .audit-buttons {
        flex-direction: column;
    }
    
    .navbar {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .navbar .user-info {
        flex-direction: column;
        gap: 5px;
    }
}

/* 辅助类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-10 { gap: 10px; }
.hidden { display: none; }