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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #f0f2f5;
    color: #333;
}

.hidden {
    display: none !important;
}

/* 登录页面 */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-box {
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.login-box h1 {
    color: #1890ff;
    margin-bottom: 10px;
}

.login-box .subtitle {
    color: #666;
    margin-bottom: 30px;
}

.login-box .version {
    color: #999;
    margin-top: 20px;
    font-size: 12px;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: #1890ff;
    outline: none;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.form-static {
    padding: 10px 0;
    color: #666;
}

/* 按钮样式 */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.btn-primary {
    background: #1890ff;
    color: #fff;
}

.btn-primary:hover {
    background: #40a9ff;
}

.btn-danger {
    background: #ff4d4f;
    color: #fff;
}

.btn-danger:hover {
    background: #ff7875;
}

.btn-success {
    background: #52c41a;
    color: #fff;
}

.btn-success:hover {
    background: #73d13d;
}

.btn-warning {
    background: #faad14;
    color: #fff;
}

.btn-warning:hover {
    background: #ffc53d;
}

.btn-info {
    background: #13c2c2;
    color: #fff;
}

.btn-info:hover {
    background: #36cfc9;
}

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

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-icon {
    padding: 8px;
    background: transparent;
    color: #666;
}

.btn-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #999;
}

.btn-close:hover {
    color: #666;
}

/* 主页面布局 */
#main-page {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 220px;
    background: #001529;
    color: #fff;
    position: fixed;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header h2 {
    font-size: 18px;
}

.sidebar-nav {
    flex: 1;
    padding: 10px 0;
}

.nav-item {
    display: block;
    padding: 12px 20px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: all 0.3s;
}

.nav-item:hover,
.nav-item.active {
    background: #1890ff;
    color: #fff;
}

.nav-item i {
    width: 20px;
    margin-right: 8px;
}

.sidebar-footer {
    padding: 15px 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.user-info {
    margin-bottom: 10px;
}

.user-info span {
    display: block;
}

.user-info small {
    color: rgba(255,255,255,0.5);
}

.main-content {
    flex: 1;
    margin-left: 220px;
    min-height: 100vh;
}

.top-bar {
    background: #fff;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

.content {
    padding: 20px;
}

/* 仪表盘 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.stat-card {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-right: 15px;
}

.stat-icon.blue {
    background: #e6f7ff;
    color: #1890ff;
}

.stat-icon.orange {
    background: #fff7e6;
    color: #fa8c16;
}

.stat-icon.green {
    background: #f6ffed;
    color: #52c41a;
}

.stat-icon.red {
    background: #fff1f0;
    color: #f5222d;
}

.stat-info h4 {
    font-size: 28px;
    color: #333;
}

.stat-info p {
    color: #666;
    font-size: 14px;
}

/* 工具栏 */
.toolbar {
    background: #fff;
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    gap: 10px;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.search-input {
    padding: 8px 12px;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    width: 200px;
}

/* 表格 */
.table-container {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #f0f0f0;
}

.data-table th {
    background: #fafafa;
    font-weight: 500;
    color: #666;
}

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

.data-table .actions {
    display: flex;
    gap: 5px;
}

.data-table .actions .btn {
    padding: 4px 8px;
    font-size: 12px;
}

.text-center {
    text-align: center;
}

.text-danger {
    color: #f5222d;
}

/* 徽章 */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    margin-right: 5px;
}

.badge-success {
    background: #f6ffed;
    color: #52c41a;
}

.badge-danger {
    background: #fff1f0;
    color: #f5222d;
}

.badge-warning {
    background: #fff7e6;
    color: #fa8c16;
}

.badge-info {
    background: #e6fffb;
    color: #13c2c2;
}

.badge-secondary {
    background: #f5f5f5;
    color: #666;
}

/* 模态框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: #fff;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 18px;
}

.modal form {
    padding: 20px;
}

.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid #f0f0f0;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.view-content {
    padding: 20px;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

.info-item {
    display: flex;
}

.info-item label {
    color: #666;
    margin-right: 8px;
    min-width: 80px;
}

.info-item span {
    color: #333;
}

/* 响应式 */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s;
        z-index: 100;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .toolbar {
        flex-wrap: wrap;
    }
    
    .search-input {
        width: 100%;
    }
}