/* =====================================================
   中央空调报价系统 - 完整美化样式
   电脑端优化 + 移动端适配
   ===================================================== */

/* ---------- CSS变量定义 ---------- */
:root {
    /* 主色调 */
    --primary: #667eea;
    --primary-dark: #5a67d8;
    --primary-light: #8296f0;
    --secondary: #764ba2;
    --secondary-dark: #6b46a0;
    
    /* 功能色 */
    --success: #10b981;
    --success-dark: #059669;
    --warning: #f59e0b;
    --warning-dark: #d97706;
    --danger: #ef4444;
    --danger-dark: #dc2626;
    --info: #3b82f6;
    
    /* 灰度色 */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 过渡 */
    --transition: all 0.3s ease;
}

/* ---------- 全局重置 ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e9ecef 100%);
    color: var(--gray-800);
    line-height: 1.5;
    min-height: 100vh;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-200);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ---------- 头部导航 ---------- */
.app-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 20px 32px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
}

.app-header h1 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.9) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.app-header .user-info {
    font-size: 14px;
    opacity: 0.95;
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.app-header .logout-btn {
    position: absolute;
    right: 32px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.app-header .logout-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-50%) scale(1.02);
    box-shadow: var(--shadow-md);
}

/* ---------- 底部导航 ---------- */
.bottom-nav {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: space-around;
    padding: 8px 16px;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    z-index: 100;
    gap: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--gray-500);
    font-size: 12px;
    padding: 8px 20px;
    border-radius: var(--radius-xl);
    transition: var(--transition);
    font-weight: 500;
}

.nav-item:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.nav-icon {
    font-size: 20px;
    margin-bottom: 4px;
}

/* ---------- 卡片组件 ---------- */
.card {
    background: white;
    border-radius: var(--radius-xl);
    margin: 20px;
    padding: 0;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, var(--gray-50) 0%, white 100%);
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-800);
    position: relative;
    padding-left: 16px;
}

.card-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 2px;
}

.card-content {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* ---------- 统计卡片 ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin: 24px auto;
    max-width: 1400px;
    padding: 0 24px;
}

.stat-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 24px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.stat-value {
    font-size: 42px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1.2;
}

.stat-label {
    font-size: 14px;
    color: var(--gray-500);
    margin-top: 12px;
    font-weight: 500;
}

/* ---------- 快捷按钮 ---------- */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin: 0 24px 24px 24px;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.quick-btn {
    background: white;
    border: 1px solid var(--gray-200);
    padding: 20px 16px;
    border-radius: var(--radius-xl);
    text-align: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    font-weight: 500;
    color: var(--gray-700);
}

.quick-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
    color: var(--primary);
}

.quick-btn .icon {
    font-size: 32px;
    display: block;
    margin-bottom: 8px;
}

/* ---------- 搜索框 ---------- */
.search-box {
    max-width: 1400px;
    margin: 24px auto;
    padding: 0 24px;
}

.search-box input {
    width: 100%;
    padding: 14px 20px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-full);
    font-size: 15px;
    outline: none;
    background: white;
    transition: var(--transition);
}

.search-box input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

/* ---------- 按钮样式 ---------- */
.btn {
    padding: 10px 24px;
    border: none;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    letter-spacing: 0.3px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-200);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--danger);
    color: white;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: var(--danger-dark);
    transform: translateY(-1px);
}

.btn-warning {
    background: var(--warning);
    color: white;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

.btn-warning:hover {
    background: var(--warning-dark);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--success);
    color: white;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    background: var(--success-dark);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 6px 16px;
    font-size: 12px;
    min-height: 32px;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 16px;
}

/* ---------- 表单样式 ---------- */
.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    font-size: 14px;
    outline: none;
    background: white;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--danger);
}

/* ---------- 标签页 ---------- */
.tabs {
    display: flex;
    background: white;
    overflow-x: auto;
    white-space: nowrap;
    padding: 8px;
    margin: 24px auto;
    border-radius: var(--radius-2xl);
    background: var(--gray-100);
    max-width: 1400px;
    gap: 8px;
}

.tab {
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-full);
    transition: var(--transition);
    color: var(--gray-600);
}

.tab:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

.tab.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

/* ---------- 模态框 ---------- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    display: none;
    animation: fadeIn 0.2s ease;
}

.modal.show {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: white;
    border-radius: var(--radius-2xl);
    width: 90%;
    max-width: 600px;
    max-height: 85vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
    box-shadow: var(--shadow-2xl);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 24px 28px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    font-size: 20px;
    font-weight: 700;
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.modal-body {
    padding: 28px;
}

.modal-footer {
    padding: 20px 28px;
    background: var(--gray-50);
    display: flex;
    gap: 16px;
    justify-content: flex-end;
    border-top: 1px solid var(--gray-200);
    border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
}

/* ---------- 提示消息 ---------- */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gray-800);
    color: white;
    padding: 14px 28px;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 500;
    z-index: 1000;
    display: none;
    white-space: nowrap;
    box-shadow: var(--shadow-xl);
    animation: slideUp 0.2s ease;
}

/* ---------- 加载动画 ---------- */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    display: none;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ---------- 徽章 ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background: #d1fae5;
    color: var(--success-dark);
}

.badge-warning {
    background: #fed7aa;
    color: var(--warning-dark);
}

.badge-danger {
    background: #fee2e2;
    color: var(--danger-dark);
}

.badge-info {
    background: #dbeafe;
    color: var(--info);
}

/* ---------- 工具类 ---------- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }

.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-5 { margin-top: 24px; }

.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-5 { margin-bottom: 24px; }

.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; justify-content: center; align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }

/* ---------- 电脑端优化 (≥768px) ---------- */
@media (min-width: 768px) {
    body {
        padding-bottom: 0;
    }
    
    .app-header {
        padding: 24px 48px;
    }
    
    .app-header h1 {
        font-size: 28px;
    }
    
    .bottom-nav {
        bottom: 30px;
        padding: 10px 24px;
    }
    
    .nav-item {
        padding: 10px 28px;
        font-size: 13px;
    }
    
    .stats-grid {
        gap: 28px;
        padding: 0 32px;
    }
    
    .stat-value {
        font-size: 48px;
    }
    
    .quick-actions {
        gap: 20px;
        padding: 0 32px;
    }
    
    .quick-btn {
        padding: 24px 20px;
    }
    
    .quick-btn .icon {
        font-size: 36px;
    }
    
    .card {
        margin: 24px auto;
        max-width: 1400px;
    }
    
    .search-box {
        padding: 0 32px;
    }
    
    .btn {
        padding: 12px 28px;
    }
    
    .btn-sm {
        padding: 8px 20px;
    }
}

/* ---------- 超大屏幕优化 (≥1400px) ---------- */
@media (min-width: 1400px) {
    .stats-grid,
    .quick-actions,
    .search-box,
    .tabs {
        padding: 0 40px;
    }
    
    .stat-value {
        font-size: 56px;
    }
    
    .card {
        margin: 28px auto;
    }
}

/* ---------- 打印样式 ---------- */
@media print {
    .bottom-nav, 
    .app-header, 
    .btn, 
    .modal, 
    .toast, 
    .loading,
    .quick-actions {
        display: none !important;
    }
    
    body {
        padding: 0;
        background: white;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--gray-300);
        break-inside: avoid;
        margin: 0 0 20px 0;
    }
    
    .price-summary-card {
        background: white;
        color: black;
        border: 1px solid var(--gray-300);
    }
}

/* ---------- 动画效果 ---------- */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* ---------- 响应式表格 ---------- */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.data-table th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-700);
}

.data-table tr:hover {
    background: var(--gray-50);
}

/* ---------- 进度条 ---------- */
.progress-bar {
    height: 8px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
}

/* ---------- 分割线 ---------- */
.divider {
    height: 1px;
    background: linear-gradient(135deg, var(--gray-200) 0%, transparent 100%);
    margin: 20px 0;
}

/* ---------- 悬浮效果 ---------- */
.hover-lift {
    transition: var(--transition);
}

.hover-lift:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ---------- 渐变文字 ---------- */
.gradient-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ---------- 卡片网格 ---------- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 24px;
    margin: 24px auto;
    max-width: 1400px;
    padding: 0 24px;
}

@media (max-width: 768px) {
    .card-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 0 16px;
    }
}
/* =====================================================
   底部导航 - 电脑版优化
   ===================================================== */

/* 手机版样式 (默认) */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    display: flex;
    justify-content: space-around;
    padding: 8px 0 12px;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.05);
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #94a3b8;
    font-size: 11px;
    padding: 6px 12px;
    min-width: 64px;
    transition: all 0.2s;
    border-radius: 12px;
}

.nav-item.active {
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}

.nav-icon {
    font-size: 22px;
    margin-bottom: 4px;
}

/* 电脑版样式 */
@media (min-width: 768px) {
    .bottom-nav {
        position: fixed;
        bottom: 24px;
        left: 50%;
        transform: translateX(-50%);
        width: auto;
        min-width: 500px;
        max-width: 90%;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        border-radius: 60px;
        padding: 8px 20px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
        border: 1px solid rgba(102, 126, 234, 0.2);
        transition: all 0.3s ease;
    }
    
    .bottom-nav:hover {
        box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
        transform: translateX(-50%) translateY(-2px);
    }
    
    .nav-item {
        flex-direction: row;
        gap: 8px;
        padding: 10px 24px;
        border-radius: 40px;
        font-size: 14px;
        font-weight: 500;
        min-width: auto;
    }
    
    .nav-icon {
        font-size: 20px;
        margin-bottom: 0;
    }
    
    .nav-item span {
        display: inline-block;
    }
    
    .nav-item:hover {
        background: rgba(102, 126, 234, 0.1);
        transform: translateY(-2px);
    }
    
    .nav-item.active {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    }
    
    .nav-item.active:hover {
        transform: translateY(-2px);
    }
}

/* 超大屏幕优化 */
@media (min-width: 1200px) {
    .bottom-nav {
        min-width: 600px;
        padding: 10px 24px;
    }
    
    .nav-item {
        padding: 12px 32px;
        font-size: 15px;
        gap: 10px;
    }
    
    .nav-icon {
        font-size: 22px;
    }
}

/* 小屏电脑优化 */
@media (min-width: 768px) and (max-width: 1024px) {
    .bottom-nav {
        min-width: 420px;
        padding: 6px 16px;
    }
    
    .nav-item {
        padding: 8px 18px;
        font-size: 13px;
    }
    
    .nav-icon {
        font-size: 18px;
    }
}

/* 页面底部留白 */
@media (min-width: 768px) {
    body {
        padding-bottom: 100px;
    }
}

@media (max-width: 767px) {
    body {
        padding-bottom: 70px;
    }
}
/* =====================================================
   标签页样式 - 统一修复
   ===================================================== */

/* 通用标签页容器 */
.tabs-container {
    background: #f1f5f9;
    border-radius: 60px;
    padding: 6px;
    margin-bottom: 28px;
    display: inline-block;
    width: auto;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* 标签页列表 */
.tabs {
    display: flex;
    gap: 8px;
    background: transparent;
    padding: 0;
    margin: 0;
    list-style: none;
}

/* 单个标签 */
.tab {
    padding: 10px 28px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border-radius: 40px;
    transition: all 0.2s ease;
    color: #64748b;
    background: transparent;
    border: none;
    text-align: center;
    display: inline-block;
}

/* 标签悬浮效果 */
.tab:hover {
    background: #e2e8f0;
    color: #334155;
}

/* 激活状态 - 关键修复 */
.tab.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3) !important;
}

/* 确保激活标签的文字颜色为白色 */
.tab.active span,
.tab.active .tab-text {
    color: white !important;
}

/* 手机端适配 */
@media (max-width: 768px) {
    .tabs-container {
        width: 100%;
        border-radius: 16px;
        overflow-x: auto;
        white-space: nowrap;
        display: block;
        padding: 6px;
    }
    
    .tabs {
        width: max-content;
        gap: 6px;
    }
    
    .tab {
        padding: 8px 20px;
        font-size: 13px;
    }
    
    .tab.active {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
        color: white !important;
    }
}

/* 电脑端优化 */
@media (min-width: 769px) {
    .tabs-container {
        margin-bottom: 32px;
        text-align: center;
    }
    
    .tab {
        padding: 12px 32px;
        font-size: 15px;
    }
}