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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f5f7fa;
    color: #333;
}

.container {
    display: flex;
    height: 100vh;
}

/* 侧边栏 */
.sidebar {
    width: 250px;
    background: #2c3e50;
    color: white;
    display: flex;
    flex-direction: column;
}

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

.logo h2 {
    font-size: 20px;
    font-weight: 600;
}

.nav-menu {
    flex: 1;
    padding: 20px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-item.active {
    background: rgba(52, 152, 219, 0.3);
    color: white;
    border-left: 4px solid #3498db;
}

.nav-item .icon {
    margin-right: 12px;
    font-size: 20px;
}

/* 主内容区 */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.header {
    background: white;
    padding: 20px 30px;
    border-bottom: 1px solid #e1e8ed;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 24px;
    font-weight: 600;
}

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

.btn-refresh {
    padding: 8px 16px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.3s;
}

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

/* 页面内容 */
.page-content {
    display: none;
    padding: 30px;
    overflow-y: auto;
}

.page-content.active {
    display: block;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
    font-size: 18px;
    margin-bottom: 16px;
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 8px;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #ecf0f1;
}

.stat-row:last-child {
    border-bottom: none;
}

.stat-row .label {
    color: #7f8c8d;
    font-size: 14px;
}

.stat-row .value {
    font-weight: 600;
    font-size: 16px;
    color: #2c3e50;
}

/* 过滤器 */
.filters {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filters input,
.filters select {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    flex: 1;
    min-width: 150px;
}

.btn-primary {
    padding: 10px 24px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background 0.3s;
}

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

/* 表格 */
.table-container {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

.data-table thead {
    background: #34495e;
    color: white;
}

.data-table th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
}

.data-table tbody tr {
    border-bottom: 1px solid #ecf0f1;
    transition: background 0.2s;
}

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

.data-table td {
    padding: 15px;
    font-size: 14px;
}

.data-table td.loading {
    text-align: center;
    color: #7f8c8d;
    padding: 40px;
}

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

.status-badge.active {
    background: #d4edda;
    color: #155724;
}

.status-badge.paused {
    background: #fff3cd;
    color: #856404;
}

.status-badge.disabled {
    background: #f8d7da;
    color: #721c24;
}

/* 操作按钮 */
.action-buttons {
    display: flex;
    gap: 8px;
}

.btn-sm {
    padding: 6px 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: opacity 0.2s;
}

.btn-sm:hover {
    opacity: 0.8;
}

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

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

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

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

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

.modal.active {
    display: block;
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 30px;
    border-radius: 12px;
    width: 500px;
    max-width: 90%;
    position: relative;
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 28px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
}

.close:hover {
    color: #000;
}

.modal-content h2 {
    margin-bottom: 20px;
    color: #2c3e50;
}

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

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

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 24px;
}

.btn-cancel {
    padding: 10px 20px;
    background: #95a5a6;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}

.btn-submit {
    padding: 10px 20px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.btn-submit:disabled {
    background: #95a5a6;
    cursor: not-allowed;
    opacity: 0.7;
}

.btn-submit:disabled:hover {
    opacity: 0.7;
}

.btn-cancel:disabled {
    background: #ecf0f1;
    color: #95a5a6;
    cursor: not-allowed;
    opacity: 0.7;
}

.btn-cancel:disabled:hover {
    opacity: 0.7;
}

.loading-spinner {
    display: inline-block;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

input:disabled {
    background: #ecf0f1;
    color: #95a5a6;
    cursor: not-allowed;
}

/* 翻页控件 */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 24px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    margin-top: 24px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.2);
}

.page-btn {
    padding: 10px 20px;
    background: white;
    color: #667eea;
    border: 2px solid white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    min-width: 80px;
}

.page-btn:hover:not(:disabled) {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.page-btn:active:not(:disabled) {
    transform: translateY(0);
}

.page-btn:disabled {
    background: rgba(255, 255, 255, 0.5);
    color: rgba(102, 126, 234, 0.4);
    cursor: not-allowed;
    opacity: 0.6;
    border-color: rgba(255, 255, 255, 0.5);
}

.page-info {
    padding: 10px 20px;
    font-size: 15px;
    color: white;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    min-width: 100px;
    text-align: center;
    backdrop-filter: blur(10px);
}

.page-size-select {
    padding: 10px 16px;
    border: 2px solid white;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    background: white;
    color: #667eea;
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.page-size-select:hover {
    background: #667eea;
    color: white;
}

.page-size-select:focus {
    border-color: white;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

/* 响应式 */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .filters {
        flex-direction: column;
    }

    .filters input,
    .filters select {
        width: 100%;
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: 8px;
        padding: 15px;
    }
    
    .page-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
}

/* Toast提示 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    z-index: 10000;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s ease;
    min-width: 250px;
    max-width: 400px;
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

.toast.success {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

.toast.error {
    background: linear-gradient(135deg, #eb3349 0%, #f45c43 100%);
}

#toast-message {
    display: block;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
}