/* ==================== GMV 页面样式 ==================== */

/* 导航链接 */
.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-left: var(--spacing-xl);
    padding-left: var(--spacing-xl);
    border-left: 1px solid var(--color-border);
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.nav-link:hover {
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.nav-link.active {
    color: var(--color-primary);
    background: var(--color-primary-light);
    font-weight: 600;
}

/* ==================== 页面标题 ==================== */
.page-header {
    margin-bottom: var(--spacing-xl);
}

.page-title-section {
    margin-bottom: var(--spacing-lg);
}

.page-title {
    font-size: 1.75rem;
    font-weight: 800;
    background: linear-gradient(135deg, #6366f1, #a78bfa, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.page-subtitle {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-xs);
}

/* ==================== 日期控件 ==================== */
.date-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.quick-dates {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.date-chip {
    padding: 0.4375rem 1rem;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: inherit;
}

.date-chip:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.date-chip.active {
    color: white;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
}

.custom-date-range {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

.date-input-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.date-input-group label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.date-input {
    padding: 0.5625rem 0.875rem;
    font-size: 0.875rem;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    background: var(--color-bg);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
    outline: none;
    min-width: 160px;
}

.date-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.date-separator {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding-bottom: 0.625rem;
    font-weight: 500;
}

.btn-query {
    padding: 0.5625rem 1.25rem;
    white-space: nowrap;
}

/* ==================== 加载骨架屏 ==================== */
.gmv-loading-state {
    animation: fadeIn 0.3s ease;
}

.loading-skeleton {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.skeleton-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
}

.skeleton-card {
    height: 120px;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    border-radius: var(--radius-lg);
    animation: shimmer 1.5s infinite;
}

.skeleton-chart {
    height: 400px;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    border-radius: var(--radius-lg);
    animation: shimmer 1.5s infinite;
    animation-delay: 0.3s;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==================== 错误状态 ==================== */
.gmv-error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    text-align: center;
    padding: var(--spacing-xl);
    animation: fadeIn 0.3s ease;
}

.gmv-error-state h3 {
    margin-top: var(--spacing-lg);
    font-size: 1.25rem;
    color: var(--color-text-primary);
}

.gmv-error-state p {
    color: var(--color-text-secondary);
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

/* ==================== 指标卡片网格 ==================== */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    animation: fadeIn 0.4s ease;
}

.metric-card {
    position: relative;
    padding: var(--spacing-xl);
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    transition: all var(--transition-base);
    overflow: hidden;
}

.metric-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.metric-card .metric-decoration {
    position: absolute;
    top: -30px;
    right: -30px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    opacity: 0.08;
    transition: opacity var(--transition-base);
}

.metric-card:hover .metric-decoration {
    opacity: 0.14;
}

.metric-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.metric-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 1;
}

.metric-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.metric-sub {
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0.7;
}

/* 卡片主题色 */
.metric-gmv .metric-icon {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(139, 92, 246, 0.12));
    color: #6366f1;
}
.metric-gmv .metric-value { color: #6366f1; }
.metric-gmv .metric-decoration { background: #6366f1; }
.metric-gmv:hover { border-color: rgba(99, 102, 241, 0.25); }

.metric-orders .metric-icon {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.12), rgba(52, 211, 153, 0.12));
    color: #10b981;
}
.metric-orders .metric-value { color: #10b981; }
.metric-orders .metric-decoration { background: #10b981; }
.metric-orders:hover { border-color: rgba(16, 185, 129, 0.25); }

.metric-items .metric-icon {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(251, 191, 36, 0.12));
    color: #f59e0b;
}
.metric-items .metric-value { color: #f59e0b; }
.metric-items .metric-decoration { background: #f59e0b; }
.metric-items:hover { border-color: rgba(245, 158, 11, 0.25); }

.metric-avg .metric-icon {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.12), rgba(244, 114, 182, 0.12));
    color: #ec4899;
}
.metric-avg .metric-value { color: #ec4899; }
.metric-avg .metric-decoration { background: #ec4899; }
.metric-avg:hover { border-color: rgba(236, 72, 153, 0.25); }

.metric-freight .metric-icon {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.12), rgba(56, 189, 248, 0.12));
    color: #0ea5e9;
}
.metric-freight .metric-value { color: #0ea5e9; }
.metric-freight .metric-decoration { background: #0ea5e9; }
.metric-freight:hover { border-color: rgba(14, 165, 233, 0.25); }

.metric-refund .metric-icon {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.12), rgba(248, 113, 113, 0.12));
    color: #ef4444;
}
.metric-refund .metric-value { color: #ef4444; }
.metric-refund .metric-sub { color: #ef4444; }
.metric-refund .metric-decoration { background: #ef4444; }
.metric-refund:hover { border-color: rgba(239, 68, 68, 0.25); }

/* ==================== 图表区域 ==================== */
.chart-section {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    overflow: hidden;
    animation: fadeIn 0.5s ease;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xl) var(--spacing-xl) 0;
}

.chart-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.chart-title svg {
    color: var(--color-primary);
}

.chart-legend {
    display: flex;
    gap: var(--spacing-lg);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.legend-gmv {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.legend-orders {
    background: linear-gradient(135deg, #10b981, #34d399);
}

.chart-container {
    padding: var(--spacing-lg) var(--spacing-xl);
    height: 360px;
    position: relative;
}

#gmvChart {
    width: 100% !important;
    height: 100% !important;
}

/* ==================== 日数据表格 ==================== */
.daily-table-wrapper {
    border-top: 1px solid var(--color-border);
    max-height: 320px;
    overflow-y: auto;
}

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

.daily-table thead {
    position: sticky;
    top: 0;
    background: var(--color-bg);
    z-index: 1;
}

.daily-table th {
    padding: var(--spacing-md) var(--spacing-xl);
    text-align: left;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--color-border);
}

.daily-table td {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 0.875rem;
    border-bottom: 1px solid rgba(0,0,0,0.04);
    transition: background var(--transition-fast);
}

.daily-table tbody tr:hover {
    background: var(--color-bg);
}

.daily-table .date-cell {
    font-weight: 600;
    color: var(--color-text-primary);
}

.daily-table .orders-cell {
    color: var(--color-text-primary);
    font-weight: 500;
}

.daily-table .gmv-cell {
    font-weight: 700;
    font-family: 'Courier New', monospace;
    color: var(--color-primary);
}

.daily-table .percent-cell {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.percent-bar-bg {
    width: 80px;
    height: 6px;
    background: var(--color-bg);
    border-radius: 3px;
    overflow: hidden;
}

.percent-bar {
    height: 100%;
    background: linear-gradient(90deg, #6366f1, #a78bfa);
    border-radius: 3px;
    transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.percent-text {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
    min-width: 42px;
    text-align: right;
}

/* ==================== 数值动画 ==================== */
.metric-value.animating {
    animation: countUp 0.5s ease-out;
}

@keyframes countUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==================== 响应式 ==================== */
@media (max-width: 1200px) {
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        margin-left: var(--spacing-md);
        padding-left: var(--spacing-md);
    }

    .page-title {
        font-size: 1.375rem;
    }

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

    .metric-value {
        font-size: 1.5rem;
    }

    .custom-date-range {
        flex-direction: column;
        align-items: stretch;
    }

    .quick-dates {
        gap: var(--spacing-xs);
    }

    .date-chip {
        padding: 0.375rem 0.75rem;
        font-size: 0.75rem;
    }

    .chart-container {
        height: 260px;
        padding: var(--spacing-md);
    }

    .chart-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
        padding: var(--spacing-lg) var(--spacing-lg) 0;
    }
}