/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部样式 */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #ddd;
}

header h1 {
    color: #2c3e50;
    font-size: 28px;
}

header h1 i {
    color: #3498db;
    margin-right: 10px;
}

.header-actions {
    display: flex;
    gap: 10px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
}

.btn i {
    margin-right: 5px;
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

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

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

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

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

.btn-success:hover {
    background-color: #219653;
}

.btn-info {
    background-color: #17a2b8;
    color: white;
}

.btn-info:hover {
    background-color: #138496;
}

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

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

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

/* 控制面板 */
.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stats-card, .filter-card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.stats-card h3, .filter-card h3 {
    margin-bottom: 15px;
    color: #2c3e50;
    font-size: 18px;
}

/* 筛选表单 */
.filter-form {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: flex-end;
}

.form-group {
    margin-bottom: 15px;
    flex: 1;
    min-width: 150px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #555;
}

.form-group input, 
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

/* 主内容区 */
main {
    background: white;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

main h2 {
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 22px;
}

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

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table th {
    background-color: #f8f9fa;
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    color: #2c3e50;
    border-bottom: 2px solid #dee2e6;
}

.data-table td {
    padding: 12px 15px;
    border-bottom: 1px solid #dee2e6;
}

.data-table tbody tr:hover {
    background-color: #f8f9fa;
}

.actions {
    display: flex;
    gap: 5px;
}

/* 状态徽章 */
.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.status-待执行 {
    background-color: #f1c40f;
    color: #000;
}

.status-处理中 {
    background-color: #3498db;
    color: white;
}

.status-已批准 {
    background-color: #27ae60;
    color: white;
}

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

.status-已完成 {
    background-color: #95a5a6;
    color: white;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 50px 20px;
    color: #7f8c8d;
}

.empty-state i {
    margin-bottom: 20px;
    color: #bdc3c7;
}

.empty-state h3 {
    margin-bottom: 10px;
    color: #7f8c8d;
}

/* 详情页面 */
.detail-page {
    position: relative;
}

.detail-actions {
    margin-bottom: 20px;
}

.detail-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-section {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 6px;
    border-left: 4px solid #3498db;
}

.form-section h3 {
    margin-bottom: 15px;
    color: #2c3e50;
    font-size: 18px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
}

.form-row:last-child {
    margin-bottom: 0;
}

.form-group input[readonly] {
    background-color: #f8f9fa;
    color: #6c757d;
}

.metadata {
    background-color: white;
    padding: 15px;
    border-radius: 4px;
    border: 1px solid #ddd;
}

.metadata p {
    margin-bottom: 5px;
}

/* 导入页面 */
.import-instructions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.instruction-card, .import-form-card {
    background: white;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.instruction-card ul {
    padding-left: 20px;
    margin: 15px 0;
}

.instruction-card li {
    margin-bottom: 8px;
}

.sample-data {
    margin-top: 20px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 4px;
}

.sample-data h4 {
    margin-bottom: 10px;
    color: #2c3e50;
}

.sample-data pre {
    background-color: #2c3e50;
    color: #ecf0f1;
    padding: 15px;
    border-radius: 4px;
    overflow-x: auto;
    font-size: 12px;
    margin-bottom: 10px;
}

.note {
    font-style: italic;
    color: #7f8c8d;
    font-size: 14px;
}

.note i {
    color: #f1c40f;
    margin-right: 5px;
}

.file-help {
    font-size: 12px;
    color: #7f8c8d;
    margin-top: 5px;
}

.result-area {
    margin-top: 20px;
}

/* 警告框 */
.alert {
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    border-left: 4px solid transparent;
}

.alert-success {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    border-color: #f5c6cb;
    color: #721c24;
}

.alert-info {
    background-color: #d1ecf1;
    border-color: #bee5eb;
    color: #0c5460;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.modal-content h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

/* 加载指示器 */
.spinner {
    display: inline-block;
    padding: 10px 20px;
    background-color: #f8f9fa;
    border-radius: 4px;
    color: #6c757d;
    margin-left: 10px;
}

.back-to-home {
    text-align: center;
    margin-top: 30px;
}

/* 页脚 */
footer {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #ddd;
    color: #7f8c8d;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        margin-top: 15px;
        width: 100%;
    }
    
    .header-actions .btn {
        flex: 1;
        text-align: center;
    }
    
    .dashboard {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .filter-form {
        flex-direction: column;
    }
    
    .import-instructions {
        grid-template-columns: 1fr;
    }
}