body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }

.tab-btn { border-bottom: 2px solid transparent; background: #f3f4f6; }
.tab-btn.active { background: #fff; color: #b91c1c; border-bottom-color: #b91c1c; }

.data-table { border-collapse: collapse; min-width: 1100px; }
.data-table th, .data-table td { padding: 8px 10px; border: 1px solid #e5e7eb; }
.data-table th { background: #f9fafb; font-weight: 600; color: #374151; position: sticky; top: 0; z-index: 10; }
.data-table tbody tr:nth-child(even) { background: #fafafa; }
.data-table tbody tr:hover { background: #f3f4f6; }
.data-table .group-header td { padding: 6px 10px; }

/* 涨红跌绿 */
.up-1 { background: #fee2e2; color: #991b1b; }
.up-2 { background: #fca5a5; color: #7f1d1d; }
.up-3 { background: #ef4444; color: #fff; }
.down-1 { background: #dcfce7; color: #166534; }
.down-2 { background: #86efac; color: #14532d; }
.down-3 { background: #22c55e; color: #fff; }