/* 深色量化终端风格 */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: #0d1117;
  color: #c9d1d9;
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.6;
}

/* 顶栏 */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 24px;
  background: #161b22;
  border-bottom: 1px solid #30363d;
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.brand .logo { color: #f0b90b; font-size: 18px; }
.brand h1 { font-size: 18px; color: #f0f6fc; }
.brand .sub { color: #8b949e; font-size: 12px; }
.top-right { display: flex; align-items: center; gap: 10px; }
.updated { color: #8b949e; font-size: 12px; }
.refresh-msg { color: #f0b90b; font-size: 12px; }
.btn {
  background: #f0b90b; color: #0d1117; border: none; border-radius: 6px;
  padding: 6px 14px; cursor: pointer; font-weight: 600; font-size: 13px;
}
.btn:hover { background: #ffd60a; }
.select {
  background: #0d1117; color: #f0f6fc; border: 1px solid #30363d;
  border-radius: 6px; padding: 6px 10px; font-size: 13px; cursor: pointer;
  max-width: 220px;
}
.strategy-desc {
  color: #8b949e; font-size: 12px; margin: -8px 0 16px;
  background: #161b22; border: 1px solid #30363d; border-radius: 6px; padding: 8px 12px;
}
.best-row { background: rgba(240,185,11,0.07); }
.best-badge {
  background: #f0b90b; color: #0d1117; border-radius: 4px;
  padding: 1px 6px; font-size: 11px; font-weight: 700; margin-left: 6px;
}
.card-value-sm { font-size: 15px; }

main { max-width: 1200px; margin: 0 auto; padding: 20px 24px 40px; }

/* 指标卡片 */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px; margin-bottom: 8px;
}
.card {
  background: #161b22; border: 1px solid #30363d; border-radius: 8px;
  padding: 14px 16px;
}
.card-label { color: #8b949e; font-size: 12px; margin-bottom: 4px; }
.card-value { font-size: 20px; font-weight: 700; color: #f0f6fc; font-variant-numeric: tabular-nums; }
.up { color: #f0334b !important; }   /* 涨红 */
.down { color: #0ecb81 !important; } /* 跌绿 */
.range { color: #8b949e; font-size: 12px; margin: 4px 0 16px; }

/* 面板 */
.panel {
  background: #161b22; border: 1px solid #30363d; border-radius: 8px;
  padding: 18px 20px; margin-bottom: 20px;
}
.panel h2 { font-size: 15px; color: #f0f6fc; margin-bottom: 12px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.panel-head h2 { margin-bottom: 0; }

/* Tabs */
.tabs { display: flex; gap: 6px; }
.tab {
  background: #0d1117; color: #8b949e; border: 1px solid #30363d;
  border-radius: 6px; padding: 5px 14px; cursor: pointer; font-size: 13px;
}
.tab.active { background: #f0b90b; color: #0d1117; border-color: #f0b90b; font-weight: 600; }

/* 图表 */
.chart-wrap { height: 380px; }

/* 表格 */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
th, td { padding: 8px 10px; text-align: right; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { color: #8b949e; font-weight: 500; font-size: 12px; border-bottom: 1px solid #30363d; }
td { border-bottom: 1px solid #21262d; }
tbody tr:hover { background: rgba(255,255,255,0.03); }
.code { color: #6e7681; font-size: 12px; margin-left: 4px; }
.badge { border-radius: 4px; padding: 2px 8px; font-size: 12px; font-weight: 600; }
.badge-buy { background: rgba(240,51,75,0.15); color: #f0334b; }
.badge-sell { background: rgba(14,203,129,0.15); color: #0ecb81; }

.empty { color: #6e7681; text-align: center; padding: 24px 0; }
.load-error {
  background: rgba(240,51,75,0.12); color: #f0334b;
  padding: 10px 24px; text-align: center;
}

/* 页脚 */
footer {
  border-top: 1px solid #30363d; padding: 20px 24px 30px;
  text-align: center; color: #6e7681; font-size: 12px;
}
footer p { margin-bottom: 4px; }

@media (max-width: 768px) {
  .topbar { flex-direction: column; gap: 8px; align-items: flex-start; }
  .brand { flex-wrap: wrap; }
}