* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #f0f2f5;
  --card-bg: #ffffff;
  --sidebar-bg: #1e2333;
  --sidebar-text: #c8cdd6;
  --sidebar-active: #2d3554;
  --text: #1a1a2e;
  --text-sub: #6b7280;
  --primary: #3b82f6;
  --up: #e74c3c;
  --down: #27ae60;
  --flat: #7f8c8d;
  --border: #e8eaed;
  --hover: #f5f6fa;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.08);
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  overflow: hidden;
}

.app { display: flex; flex-direction: column; height: 100vh; }

/* Header */
.header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px; height: 56px;
  background: var(--sidebar-bg); color: #fff; flex-shrink: 0;
}
.header-left { display: flex; align-items: center; gap: 10px; }
.logo { font-size: 20px; font-weight: 700; letter-spacing: 1px; }
.badge {
  font-size: 11px; padding: 2px 8px; border-radius: 10px;
  background: rgba(59,130,246,.2); color: #93c5fd;
}
.header-center { flex: 1; text-align: center; }
.current-variety { display: inline-flex; align-items: baseline; gap: 8px; }
.cv-name { font-size: 18px; font-weight: 600; }
.cv-code { font-size: 13px; color: #93a1b8; }
.header-right { display: flex; align-items: center; gap: 12px; }
.search-input {
  width: 200px; padding: 6px 12px; border: none; border-radius: 6px;
  background: rgba(255,255,255,.1); color: #fff; font-size: 13px; outline: none;
}
.search-input::placeholder { color: #6b7280; }
.search-input:focus { background: rgba(255,255,255,.15); }
.update-time { font-size: 12px; color: #6b7280; white-space: nowrap; }

/* Body layout */
.body { display: flex; flex: 1; overflow: hidden; }

/* Sidebar */
.sidebar {
  width: 220px; flex-shrink: 0; background: var(--sidebar-bg);
  color: var(--sidebar-text); overflow-y: auto; border-right: 1px solid rgba(0,0,0,.2);
}
.sidebar-title { padding: 12px 16px; font-size: 12px; text-transform: uppercase; color: #6b7280; }
.variety-list { padding-bottom: 20px; }
.variety-category {
  font-size: 11px; color: #6b7280; padding: 10px 16px 4px;
  text-transform: uppercase; letter-spacing: .5px;
}
.variety-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 16px; cursor: pointer; transition: background .15s;
  font-size: 13px;
}
.variety-item:hover { background: var(--sidebar-active); }
.variety-item.active { background: var(--primary); color: #fff; }
.variety-item .v-name { font-weight: 500; }
.variety-item .v-ex { font-size: 11px; color: #6b7280; }
.variety-item.active .v-ex { color: rgba(255,255,255,.6); }

/* Main */
.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

/* Tabs */
.tabs {
  display: flex; gap: 2px; padding: 0 16px;
  background: var(--card-bg); border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.tab {
  padding: 10px 20px; border: none; background: none; cursor: pointer;
  font-size: 14px; color: var(--text-sub); position: relative; transition: color .15s;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--primary); font-weight: 600; }
.tab.active::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  background: var(--primary);
}

/* Tab content */
.tab-content { flex: 1; overflow-y: auto; padding: 16px; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Cards */
.card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 16px; margin-bottom: 16px; box-shadow: var(--shadow);
}
.card-title { font-size: 14px; font-weight: 600; margin-bottom: 12px; color: var(--text); }

/* Quote grid */
.quote-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px; margin-bottom: 16px;
}
.quote-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 14px 16px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 4px;
}
.quote-card .qc-label { font-size: 12px; color: var(--text-sub); }
.quote-card .qc-value { font-size: 20px; font-weight: 700; }
.quote-card .qc-sub { font-size: 12px; color: var(--text-sub); }
.quote-card.main { grid-column: span 2; }
.quote-card.main .qc-value { font-size: 28px; }
.quote-card .up { color: var(--up); }
.quote-card .down { color: var(--down); }
.quote-card .flat { color: var(--flat); }

/* Chart boxes */
.chart-box { height: 320px; width: 100%; }
.chart-box-lg { height: 480px; width: 100%; }
.chart-row { display: grid; grid-template-columns: 1fr; gap: 16px; }

/* K-line controls */
.kline-controls {
  display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap;
}
.period-btn {
  padding: 4px 14px; border: 1px solid var(--border); border-radius: 4px;
  background: var(--card-bg); cursor: pointer; font-size: 13px; color: var(--text-sub);
  transition: all .15s;
}
.period-btn:hover { border-color: var(--primary); color: var(--primary); }
.period-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Table */
.table-wrap { overflow-x: auto; }
table.dtable {
  width: 100%; border-collapse: collapse; font-size: 13px;
}
table.dtable th {
  text-align: left; padding: 8px 10px; border-bottom: 2px solid var(--border);
  color: var(--text-sub); font-weight: 500; white-space: nowrap;
}
table.dtable td {
  padding: 7px 10px; border-bottom: 1px solid var(--border); white-space: nowrap;
}
table.dtable tr:hover { background: var(--hover); }
table.dtable tr.main-row { background: #fef9e7; font-weight: 600; }
.up-text { color: var(--up); }
.down-text { color: var(--down); }
.flat-text { color: var(--flat); }

/* News */
.news-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.news-header h3 { font-size: 16px; }
.refresh-btn {
  padding: 4px 14px; border: 1px solid var(--border); border-radius: 4px;
  background: var(--card-bg); cursor: pointer; font-size: 13px;
}
.refresh-btn:hover { border-color: var(--primary); color: var(--primary); }
.news-list { display: flex; flex-direction: column; gap: 8px; }
.news-item {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 12px 16px; box-shadow: var(--shadow); border-left: 3px solid var(--primary);
}
.news-item .news-time { font-size: 12px; color: var(--text-sub); margin-bottom: 4px; }
.news-item .news-content { font-size: 14px; line-height: 1.5; }
.news-item.important { border-left-color: var(--up); }

/* Calendar */
.cal-filters { display: flex; gap: 6px; margin-bottom: 12px; }
.cal-filter {
  padding: 4px 12px; border: 1px solid var(--border); border-radius: 4px;
  background: var(--card-bg); cursor: pointer; font-size: 12px; color: var(--text-sub);
}
.cal-filter.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.cal-list { display: flex; flex-direction: column; gap: 6px; }
.cal-day-group { margin-bottom: 8px; }
.cal-day-header { font-size: 14px; font-weight: 600; margin-bottom: 6px; padding: 4px 0; }
.cal-item {
  display: flex; align-items: center; gap: 10px; padding: 8px 12px;
  background: var(--card-bg); border-radius: 6px; box-shadow: var(--shadow);
  font-size: 13px;
}
.cal-item .cal-time { width: 50px; color: var(--text-sub); flex-shrink: 0; }
.cal-item .cal-country { width: 30px; flex-shrink: 0; }
.cal-item .cal-star { width: 40px; flex-shrink: 0; color: #f39c12; }
.cal-item .cal-title { flex: 1; }
.cal-item .cal-values { display: flex; gap: 12px; font-size: 12px; color: var(--text-sub); }
.cal-item .cal-val-actual { font-weight: 600; color: var(--text); }

/* Empty state */
.empty-state {
  grid-column: 1 / -1; text-align: center; padding: 40px;
  color: var(--text-sub); font-size: 16px;
}

/* Scrollbar */
.sidebar::-webkit-scrollbar, .tab-content::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 3px; }
.tab-content::-webkit-scrollbar-track { background: transparent; }
.tab-content::-webkit-scrollbar-thumb { background: #c5c8cc; border-radius: 3px; }

/* Loading */
.loading { text-align: center; padding: 40px; color: var(--text-sub); font-size: 14px; }
.loading::after { content: '...'; animation: dots 1.5s steps(4) infinite; }
@keyframes dots { 0%{content:'';} 25%{content:'.';} 50%{content:'..';} 75%{content:'...';} }