:root {
  --bg: #f7f7f5;
  --ink: #17181b;
  --muted: #86898f;
  --faint: #b9bdc2;
  --hairline: #e4e5e2;
  --pos: #147a55;
  --neg: #c8323e;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
}

button, select, input { font: inherit; color: inherit; }

/* ── 一屏布局：整体不滚动 ─────────────────────────── */

.app {
  height: 100dvh;
  max-width: 1440px;
  margin: 0 auto;
  padding: 18px 24px 16px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding-bottom: 12px;
}

.eyebrow {
  margin: 0 0 3px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 0;
  font-size: 19px;
  font-weight: 650;
  letter-spacing: -0.015em;
}

.head-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.ai-live-badge {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--pos);
  border: 1px solid var(--pos);
  border-radius: 99px;
  padding: 3px 9px;
  white-space: nowrap;
}

.status {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  text-align: right;
  max-width: 340px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.status.is-loading { color: var(--ink); }
.status.is-err { color: var(--neg); }

/* ── 左右工作区 ───────────────────────────────────── */

.workspace {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(340px, 0.6fr);
  gap: 22px;
}

.left {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* ── 工具条 ────────────────────────────────────────── */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 10px 18px;
  padding: 0 2px 12px;
  border-bottom: 1px solid var(--hairline);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.control-group label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

.interval-select {
  background: transparent;
  border: 1px solid var(--hairline);
  border-radius: 2px;
  padding: 7px 10px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  outline: none;
}

.interval-select:focus { border-color: var(--ink); }

.swap-btn {
  background: transparent;
  border: 0;
  border-bottom: 1px solid transparent;
  padding: 7px 2px;
  font-size: 15px;
  color: var(--muted);
  cursor: pointer;
}

.swap-btn:hover { color: var(--ink); }
.swap-btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

.seg {
  display: flex;
  gap: 2px;
}

.seg button {
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 8px 11px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
}

.seg button:hover { color: var(--ink); }
.seg button.active {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.seg button:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
}

.toggle input {
  width: 14px;
  height: 14px;
  margin: 0;
  accent-color: var(--ink);
}

/* ── 资产选择器 ────────────────────────────────────── */

.picker {
  position: relative;
  min-width: 150px;
}

.picker-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  background: transparent;
  border: 1px solid var(--hairline);
  border-radius: 2px;
  padding: 7px 10px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  cursor: pointer;
}

.picker-trigger:hover { border-color: var(--ink); }
.picker-trigger:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

.picker-name {
  flex: 1;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.picker-price { color: var(--muted); font-size: 11px; }
.picker-caret { color: var(--faint); font-size: 10px; }

.picker-panel {
  position: absolute;
  left: 0;
  top: calc(100% + 6px);
  width: min(380px, calc(100vw - 40px));
  max-height: min(460px, 60vh);
  background: #fff;
  border: 1px solid var(--hairline);
  border-radius: 2px;
  z-index: 50;
  display: flex;
  flex-direction: column;
}

.picker-panel[hidden] { display: none; }

.picker-search-input {
  border: 0;
  border-bottom: 1px solid var(--hairline);
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink);
  background: transparent;
  outline: none;
}

.picker-quick {
  padding: 8px 10px 6px;
  border-bottom: 1px solid var(--hairline);
}

.picker-quick-title {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}

.picker-quick-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 6px;
}

.picker-chip {
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: 99px;
  padding: 4px 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink);
  cursor: pointer;
}

.picker-chip:hover { border-color: var(--ink); }
.picker-chip:focus-visible { outline: 2px solid var(--ink); outline-offset: 1px; }

.picker-list {
  overflow-y: auto;
  padding: 4px 0 8px;
}

.picker-group-head {
  padding: 9px 12px 4px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}

.picker-item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  background: transparent;
  border: 0;
  padding: 6px 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.picker-item:hover,
.picker-item:focus-visible,
.picker-item.is-selected {
  background: var(--bg);
  outline: none;
}

.picker-item.is-selected { font-weight: 650; }

.picker-item-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.picker-item-name mark {
  background: transparent;
  color: var(--ink);
  font-weight: 700;
}

.picker-item-tag {
  font-size: 9px;
  text-transform: uppercase;
  color: var(--faint);
}

.picker-item-price { font-size: 11px; color: var(--muted); }

.picker-empty {
  padding: 18px 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--faint);
}

/* ── 统计行 ────────────────────────────────────────── */

.stats {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  border-bottom: 1px solid var(--hairline);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 14px 18px 12px 0;
}

.stat + .stat {
  border-left: 1px solid var(--hairline);
  padding-left: 18px;
}

.stat-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}

.stat-value {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
}

.stat-hero .stat-value {
  font-size: 42px;
  font-weight: 450;
  letter-spacing: -0.03em;
}

.stat-value.is-pos { color: var(--pos); }
.stat-value.is-neg { color: var(--neg); }
.stat-value.is-neutral { color: var(--ink); }

.stat-desc {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--faint);
}

/* ── 图表 ──────────────────────────────────────────── */

.chart-wrap {
  flex: 1;
  min-height: 0;
  padding-top: 10px;
}

.chart {
  width: 100%;
  height: 100%;
  min-height: 240px;
}

/* ── AI 分析面板 ───────────────────────────────────── */

.ai-panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-left: 1px solid var(--hairline);
  padding-left: 20px;
}

.ai-panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hairline);
}

.ai-avatar {
  width: 30px;
  height: 30px;
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 650;
}

.ai-panel-title {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.ai-panel-title strong {
  font-size: 13px;
  font-weight: 650;
}

.ai-panel-title span {
  font-size: 10px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ai-btn {
  flex: none;
  background: transparent;
  border: 1px solid var(--hairline);
  border-radius: 2px;
  padding: 6px 12px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink);
  cursor: pointer;
}

.ai-btn:hover { border-color: var(--ink); }
.ai-btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.ai-btn:disabled { color: var(--faint); border-color: var(--hairline); cursor: default; }

.ai-panel-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 12px 2px;
}

.ai-msg {
  background: var(--bg);
  border: 1px solid var(--hairline);
  border-radius: 2px;
  padding: 11px 14px;
  margin-bottom: 10px;
}

.ai-msg.is-deep {
  border-left: 2px solid var(--ink);
}

.ai-msg.is-loading .ai-out-text {
  color: var(--muted);
}

.ai-msg.is-err .ai-out-text {
  color: var(--neg);
}

.ai-msg-meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}

.ai-out-text {
  font-size: 13px;
  line-height: 1.8;
  white-space: pre-wrap;
  color: var(--ink);
}

.analysis-list {
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  line-height: 1.75;
}

.analysis-list li {
  padding: 5px 0;
  border-bottom: 1px solid var(--hairline);
}

.analysis-list li:last-child { border-bottom: 0; }
.analysis-list b { font-family: var(--mono); font-weight: 650; }

.analysis-empty {
  color: var(--faint);
  font-size: 12px;
}

.ai-panel-foot {
  padding-top: 10px;
  border-top: 1px solid var(--hairline);
}

.ai-footnote {
  margin: 0;
  font-size: 10px;
  color: var(--faint);
}

.ai-setup {
  margin-bottom: 10px;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--hairline);
}

.ai-setup-note {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.7;
}

.ai-setup-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ai-setup-row input {
  flex: 1;
  min-width: 130px;
  background: transparent;
  border: 1px solid var(--hairline);
  border-radius: 2px;
  padding: 7px 10px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
  outline: none;
}

.ai-setup-row input:focus { border-color: var(--ink); }

/* ── 响应式 ────────────────────────────────────────── */

@media (max-width: 980px) {
  .app { height: auto; overflow: visible; }
  .workspace {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .ai-panel {
    border-left: 0;
    border-top: 1px solid var(--hairline);
    padding-left: 0;
    padding-top: 12px;
    max-height: 48vh;
  }
  .chart { height: 320px; }
  .status { max-width: 220px; }
}

@media (max-width: 760px) {
  .app { padding: 16px 14px 28px; }
  .stats { grid-template-columns: 1fr; }
  .stat + .stat {
    border-left: 0;
    border-top: 1px solid var(--hairline);
    padding-left: 0;
    padding-top: 10px;
  }
  .stat-hero .stat-value { font-size: 36px; }
  .chart { height: 280px; }
  .picker { min-width: 120px; }
  .picker-panel {
    position: fixed;
    left: 16px;
    right: 16px;
    top: 84px;
    width: auto;
    max-height: 58vh;
  }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}