/* 美股信号台。版式概念：交易席位的深色顶栏 + 冷灰底上的数据面板，数字优先，信号用形状和文字同时表达。 */
:root {
  color-scheme: light;
  --page: #eef1f5;
  --surface: #ffffff;
  --surface-2: #f5f7fa;
  --ink-1: #101826;
  --ink-2: #44505f;
  --ink-3: #6b7685;
  --grid: #e4e8ee;
  --line: #d5dbe3;
  --bar: #14202e;
  --bar-ink: #eef3f9;
  --bar-ink-2: #a9b6c6;
  --bar-field: #223245;
  --accent: #1c5cab;
  --accent-ink: #ffffff;
  --accent-soft: #e4eefb;
  --warn-bg: #fff4d6;
  --warn-ink: #5d4400;
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --rise: #c62f2f;
  --rise-soft: #fbe7e7;
  --fall: #0b7d34;
  --fall-soft: #e2f4e8;
  --up: var(--rise);
  --up-soft: var(--rise-soft);
  --down: var(--fall);
  --down-soft: var(--fall-soft);
  --font-ui: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --radius: 6px;
  --rail: 340px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0e131a;
    --surface: #171d25;
    --surface-2: #1e2630;
    --ink-1: #eef2f7;
    --ink-2: #bcc6d2;
    --ink-3: #8c98a8;
    --grid: #262f3a;
    --line: #313c49;
    --bar: #0a0f15;
    --bar-field: #1c2733;
    --accent: #7fb6ff;
    --accent-ink: #0a1a2e;
    --accent-soft: #1b2c42;
    --warn-bg: #3a2f10;
    --warn-ink: #f6dc94;
    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --rise: #f07a7a;
    --rise-soft: #3a2024;
    --fall: #3ec26e;
    --fall-soft: #15301f;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0e131a;
  --surface: #171d25;
  --surface-2: #1e2630;
  --ink-1: #eef2f7;
  --ink-2: #bcc6d2;
  --ink-3: #8c98a8;
  --grid: #262f3a;
  --line: #313c49;
  --bar: #0a0f15;
  --bar-field: #1c2733;
  --accent: #7fb6ff;
  --accent-ink: #0a1a2e;
  --accent-soft: #1b2c42;
  --warn-bg: #3a2f10;
  --warn-ink: #f6dc94;
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --rise: #f07a7a;
  --rise-soft: #3a2024;
  --fall: #3ec26e;
  --fall-soft: #15301f;
}

:root[data-updown="green-up"] {
  --up: var(--fall);
  --up-soft: var(--fall-soft);
  --down: var(--rise);
  --down-soft: var(--rise-soft);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink-1);
  font: 14px/1.55 var(--font-ui);
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
[hidden] { display: none !important; }
a { color: var(--accent); }
h1, h2, h3 { margin: 0; line-height: 1.3; text-wrap: balance; }
h2 { font-size: 16px; }
h3 { font-size: 14px; }
p { margin: 0; }
button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 0; background: var(--surface); padding: 8px 12px; z-index: 50; }
.skip:focus { left: 8px; top: 8px; }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--ink-3); }
.small { font-size: 12px; }
.up { color: var(--up); }
.down { color: var(--down); }

/* 顶栏 */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bar);
  color: var(--bar-ink);
  padding: 8px max(16px, env(safe-area-inset-right, 0px)) 8px max(16px, env(safe-area-inset-left, 0px));
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--bar-ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  white-space: nowrap;
}
.search { position: relative; flex: 1; max-width: 460px; min-width: 0; }
.search input {
  width: 100%;
  height: 34px;
  padding: 0 10px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: var(--bar-field);
  color: var(--bar-ink);
}
.search input::placeholder { color: var(--bar-ink-2); }
.search-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  min-width: 280px;
  max-height: 60vh;
  overflow-y: auto;
  background: var(--surface);
  color: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(10, 20, 35, 0.22);
}
.search-item {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 8px;
  width: 100%;
  padding: 9px 12px;
  border: 0;
  background: none;
  text-align: left;
  cursor: pointer;
}
.search-item:hover, .search-item.active { background: var(--accent-soft); }
.search-item b { font-variant-numeric: tabular-nums; }
.search-item span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.search-empty { padding: 12px; color: var(--ink-3); }
.topnav { display: flex; gap: 2px; margin-left: auto; }
.topnav a {
  color: var(--bar-ink-2);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: var(--radius);
  white-space: nowrap;
}
.topnav a:hover { color: var(--bar-ink); }
.topnav a.current { color: var(--bar-ink); background: var(--bar-field); }

/* 横幅 */
.banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  background: var(--warn-bg);
  color: var(--warn-ink);
  padding: 9px max(16px, env(safe-area-inset-right, 0px)) 9px max(16px, env(safe-area-inset-left, 0px));
}
.banner a { color: inherit; font-weight: 700; }
.queue-note {
  background: var(--accent-soft);
  color: var(--ink-1);
  padding: 6px max(16px, env(safe-area-inset-right, 0px)) 6px max(16px, env(safe-area-inset-left, 0px));
  font-size: 12px;
}

/* 主布局 */
.shell {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  gap: 14px;
  padding: 14px max(16px, env(safe-area-inset-right, 0px)) 14px max(16px, env(safe-area-inset-left, 0px));
  max-width: 1640px;
  margin: 0 auto;
  align-items: start;
}
.rail {
  position: sticky;
  top: 64px;
  max-height: calc(100vh - 78px);
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.main { min-width: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; outline: none; }

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  min-width: 0;
}
.panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
  margin-bottom: 12px;
}
.stack { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; }

/* 自选列表 */
.rail-head {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.rail-head h2 { flex: 1; font-size: 14px; }
.rail-head select { height: 28px; border: 1px solid var(--line); border-radius: 4px; background: var(--surface); font-size: 12px; padding: 0 4px; }
.w-list { list-style: none; margin: 0; padding: 0; }
.w-row { border-bottom: 1px solid var(--grid); }
.w-row:last-child { border-bottom: 0; }
.w-link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 72px 84px;
  grid-template-rows: auto auto;
  column-gap: 8px;
  align-items: center;
  padding: 10px 12px;
  color: inherit;
  text-decoration: none;
}
.w-link:hover { background: var(--surface-2); }
.w-link.current { background: var(--accent-soft); }
.w-symbol { font-weight: 700; font-variant-numeric: tabular-nums; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.w-name { grid-column: 1; font-size: 12px; color: var(--ink-3); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.w-spark { grid-column: 2; grid-row: 1 / span 2; }
.w-price { grid-column: 3; grid-row: 1; text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
.w-change { grid-column: 3; grid-row: 2; text-align: right; font-size: 12px; font-variant-numeric: tabular-nums; }
.w-state { font-size: 12px; color: var(--ink-3); grid-column: 2 / span 2; grid-row: 1 / span 2; text-align: right; }
.spark { width: 72px; height: 24px; display: block; }
.spark-line { fill: none; stroke: var(--ink-3); stroke-width: 1.5; stroke-linejoin: round; stroke-linecap: round; }
.spark-end { fill: var(--ink-1); }
.quick { padding: 12px; border-top: 1px solid var(--line); }
.quick p { margin-bottom: 8px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }

/* 信号标签：形状 + 文字 + 颜色 */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 0 6px;
  height: 18px;
  border-radius: 3px;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}
.pill.strong { background: var(--up-soft); color: var(--up); }
.pill.weak { background: var(--down-soft); color: var(--down); }
.pill.neutral { background: var(--surface-2); color: var(--ink-2); box-shadow: inset 0 0 0 1px var(--line); }
.pill.large { height: 30px; padding: 0 12px; font-size: 16px; border-radius: 5px; gap: 6px; }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 32px;
  padding: 4px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink-1);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: var(--rise); }
.btn.small { min-height: 26px; padding: 1px 8px; font-size: 12px; }
.icon-btn { width: 28px; height: 28px; padding: 0; min-height: 0; flex: none; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.seg button { border: 0; background: var(--surface); padding: 4px 10px; min-height: 28px; cursor: pointer; border-left: 1px solid var(--line); font-size: 12px; }
.seg button:first-child { border-left: 0; }
.seg button[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); font-weight: 600; }
.seg button:disabled { color: var(--ink-3); cursor: not-allowed; }
.check { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; color: var(--ink-2); cursor: pointer; }

/* 个股头部 */
.head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px; align-items: flex-end; }
.back { display: none; margin-bottom: 8px; font-size: 13px; }
.head-title { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; }
.head-title h1 { font-size: 24px; }
.head-name { color: var(--ink-2); }
.head-price { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px 12px; }
.head-price .big { font-size: 34px; font-weight: 700; line-height: 1.1; }
.head-change { font-size: 16px; font-weight: 600; font-variant-numeric: tabular-nums; }
.head-meta { margin-top: 4px; font-size: 12px; color: var(--ink-3); }
.head-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }

.detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 14px; align-items: start; }
.detail-grid > .signal-panel { order: 2; }
.detail-grid > .chart-panel { order: 1; }

/* 信号卡 */
.signal-top { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.signal-score { font-size: 13px; color: var(--ink-2); }
.signal-score b { font-size: 18px; color: var(--ink-1); font-variant-numeric: tabular-nums; }
.gauge { margin-top: 14px; }
.gauge-track { position: relative; height: 8px; display: grid; grid-template-columns: 30fr 40fr 30fr; gap: 2px; }
.gauge-track i { display: block; border-radius: 2px; }
.gauge-track i:nth-child(1) { background: var(--down-soft); box-shadow: inset 0 0 0 1px var(--down); }
.gauge-track i:nth-child(2) { background: var(--surface-2); box-shadow: inset 0 0 0 1px var(--line); }
.gauge-track i:nth-child(3) { background: var(--up-soft); box-shadow: inset 0 0 0 1px var(--up); }
.gauge-mark {
  position: absolute;
  top: -5px;
  width: 4px;
  height: 18px;
  margin-left: -2px;
  border-radius: 2px;
  background: var(--ink-1);
  box-shadow: 0 0 0 2px var(--surface);
}
.gauge-labels { display: grid; grid-template-columns: 30fr 40fr 30fr; margin-top: 8px; font-size: 11px; color: var(--ink-3); text-align: center; }
.signal-summary { margin-top: 12px; }
.rules { width: 100%; border-collapse: collapse; margin-top: 12px; }
.rules th, .rules td { padding: 8px 0; border-top: 1px solid var(--grid); vertical-align: top; text-align: left; font-weight: 400; }
.rules th { width: 76px; color: var(--ink-1); font-weight: 600; font-size: 12px; padding-right: 8px; white-space: nowrap; }
.rules td.pts { width: 36px; text-align: right; font-variant-numeric: tabular-nums; font-weight: 700; }
.rules td.txt { font-size: 12.5px; color: var(--ink-2); padding-right: 8px; }
.notes { margin: 12px 0 0; padding: 10px 12px 10px 26px; background: var(--surface-2); border-radius: var(--radius); font-size: 12.5px; color: var(--ink-2); }
.notes li + li { margin-top: 4px; }
.not-advice { margin-top: 10px; font-size: 12px; color: var(--ink-3); }

/* 图表 */
.chart-tools { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; margin-bottom: 8px; }
.legend { display: flex; flex-wrap: wrap; gap: 2px 12px; min-height: 40px; font-size: 12px; color: var(--ink-2); margin-bottom: 6px; font-variant-numeric: tabular-nums; align-content: flex-start; }
.lg-item { display: inline-flex; align-items: center; gap: 4px; white-space: nowrap; }
.lg-item b { font-weight: 600; color: var(--ink-1); }
.lg-label { color: var(--ink-3); }
.lg-swatch { width: 10px; height: 2px; display: inline-block; border-radius: 1px; }
.chart-box { width: 100%; position: relative; }
details.fold { margin-top: 12px; border-top: 1px solid var(--grid); padding-top: 10px; }
details.fold summary { cursor: pointer; color: var(--ink-2); font-size: 13px; }
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; font-size: 13px; font-variant-numeric: tabular-nums; }
table.data th, table.data td { padding: 7px 8px; border-bottom: 1px solid var(--grid); text-align: right; white-space: nowrap; }
table.data th { color: var(--ink-3); font-weight: 500; font-size: 12px; }
table.data th:first-child, table.data td:first-child { text-align: left; }
table.data tr:last-child td { border-bottom: 0; }
table.data td.wrap { white-space: normal; }
table.data tfoot td { font-weight: 700; border-top: 2px solid var(--line); border-bottom: 0; }

/* 回测 */
.verdict {
  padding: 10px 12px;
  border-radius: var(--radius);
  background: var(--surface-2);
  border-left: 0;
  margin-bottom: 12px;
  font-size: 14px;
}
.verdict .warn { display: block; margin-top: 4px; font-size: 12.5px; color: var(--ink-2); }
.bt-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
.subhead { margin-bottom: 6px; font-size: 13px; font-weight: 600; }
.assume { margin: 8px 0 0; padding-left: 18px; font-size: 13px; color: var(--ink-2); }
.assume li + li { margin-top: 3px; }

/* 表单 */
.form-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-end; }
.field { display: grid; gap: 3px; min-width: 0; }
.field > span { font-size: 12px; color: var(--ink-2); }
.field input, .field select {
  height: 34px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  max-width: 100%;
}
.field input.wide { width: min(420px, 100%); }
.field.grow { flex: 1; min-width: 160px; }
.field.grow input { width: 100%; }
.msg { font-size: 13px; }
.msg.err { color: var(--rise); }
.msg.ok { color: var(--ink-1); font-weight: 600; }
.alert-list { list-style: none; margin: 10px 0 0; padding: 0; }
.alert-list li { display: flex; align-items: center; gap: 8px; justify-content: space-between; padding: 7px 0; border-top: 1px solid var(--grid); }
.tag { font-size: 11px; padding: 1px 6px; border-radius: 3px; background: var(--surface-2); color: var(--ink-2); box-shadow: inset 0 0 0 1px var(--line); white-space: nowrap; }

/* 汇总数字 */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 8px 24px; }
.stat-label { font-size: 12px; color: var(--ink-3); }
.stat-value { font-size: 22px; font-weight: 700; line-height: 1.25; }

/* 文档页 */
.doc { max-width: 760px; }
.doc h2 { margin-top: 18px; }
.doc h2:first-child { margin-top: 0; }
.doc p, .doc ul, .doc ol { margin: 8px 0 0; }
.doc ul, .doc ol { padding-left: 20px; }
.doc li + li { margin-top: 4px; }
.steps { display: grid; gap: 6px; margin: 8px 0 12px; padding-left: 20px; }

.state { padding: 24px 16px; text-align: center; color: var(--ink-2); }
.state .btn { margin-top: 10px; }
.loading { color: var(--ink-3); padding: 28px 16px; text-align: center; }

.foot {
  max-width: 1640px;
  margin: 0 auto;
  padding: 8px max(16px, env(safe-area-inset-right, 0px)) 24px max(16px, env(safe-area-inset-left, 0px));
  font-size: 12px;
  color: var(--ink-3);
  display: grid;
  gap: 4px;
}
.foot strong { color: var(--ink-2); }
.foot a { color: inherit; }

.tabbar { display: none; }

.toasts { position: fixed; right: 16px; bottom: 16px; display: grid; gap: 8px; z-index: 40; max-width: min(380px, calc(100vw - 32px)); }
.toast { background: var(--bar); color: var(--bar-ink); padding: 10px 14px; border-radius: var(--radius); box-shadow: 0 8px 24px rgba(10, 20, 35, 0.3); }
.noscript { padding: 20px; }

@media (max-width: 1280px) {
  .detail-grid { grid-template-columns: minmax(0, 1fr); }
  .detail-grid > .signal-panel { order: 1; }
  .detail-grid > .chart-panel { order: 2; }
  .bt-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 860px) {
  .shell { grid-template-columns: minmax(0, 1fr); }
  .rail { position: static; max-height: none; }
  body.route-home .main { display: none; }
  body:not(.route-home) .rail { display: none; }
  .back { display: inline-block; }
  .topnav { display: none; }
  .brand span { display: none; }
  .search { max-width: none; }
  .tabbar {
    position: sticky;
    bottom: 0;
    z-index: 20;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: var(--surface);
    border-top: 1px solid var(--line);
    padding-bottom: env(safe-area-inset-bottom, 0px);
  }
  .tabbar a {
    display: grid;
    justify-items: center;
    padding: 6px 0;
    color: var(--ink-3);
    text-decoration: none;
    font-size: 11px;
    line-height: 1.3;
  }
  .tabbar a span { font-size: 16px; line-height: 1.2; }
  .tabbar a.current { color: var(--accent); font-weight: 700; }
  .toasts { bottom: 70px; }
}
@media (max-width: 640px) {
  .search-results { position: fixed; top: 50px; left: 16px; right: 16px; min-width: 0; }
  .panel { padding: 12px; }
  .head-price .big { font-size: 30px; }
  .w-link { grid-template-columns: minmax(0, 1fr) 60px 80px; }
  .spark { width: 60px; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}