:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --text: #0b0b0b;
  --text-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --series-1: #2a78d6;
  --series-1-wash: rgba(42, 120, 214, 0.12);
  --deemph: #c3c2b7;
  --good: #0ca30c;
  --warning: #fab219;
  --critical: #d03b3b;
  --down-text: #006300;
  --up-text: #b42f2f;
  --focus: #2a78d6;
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --text: #f0efec;
    --text-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --series-1: #3987e5;
    --series-1-wash: rgba(57, 135, 229, 0.16);
    --deemph: #4a4945;
    --down-text: #0ca30c;
    --up-text: #e66767;
    --focus: #3987e5;
  }
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: var(--text); font-size: 15px; line-height: 1.55; }
h1, h2, h3 { margin: 0; font-weight: 600; }
h1 { font-size: 22px; }
h2 { font-size: 22px; }
h3 { font-size: 16px; }
p { margin: 0; }
.muted { color: var(--text-2); }
.small { font-size: 13px; }
[hidden] { display: none !important; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 16px; }
.top { padding: 24px 0 8px; }
.brand { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.tagline { color: var(--text-2); margin-top: 4px; }
.badge { font-size: 12px; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--border); color: var(--text-2); background: var(--surface); }

.layout { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 16px; align-items: start; padding-top: 12px; padding-bottom: 24px; }
@media (max-width: 960px) { .layout { grid-template-columns: minmax(0, 1fr); } }
.layout.single { grid-template-columns: minmax(0, 1fr); }
.col-main { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.col-side { position: sticky; top: 12px; }
@media (max-width: 960px) { .col-side { position: static; } }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.card h3 { margin-bottom: 6px; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 8px; }
.card-head h3 { margin: 0; }

/* 查询条件 */
.filters { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px; }
.field { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.field > label, .field > legend { font-size: 12px; color: var(--text-2); padding: 0; }
select, input[type="date"], input[type="password"], input:not([type]), textarea {
  font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--axis); border-radius: 8px; padding: 7px 10px; min-height: 38px;
}
select { min-width: 150px; }
input.airport { width: 170px; }
@media (max-width: 560px) { input.airport { width: 100%; } .filters .field:has(input.airport) { flex: 1 1 140px; } }
textarea { resize: vertical; width: 100%; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
button { font: inherit; cursor: pointer; border-radius: 8px; }
button:disabled { cursor: not-allowed; opacity: 0.55; }
.primary { background: var(--series-1); color: #fff; border: 0; padding: 8px 18px; min-height: 38px; font-weight: 600; }
.ghost { background: transparent; color: var(--text-2); border: 1px solid var(--border); padding: 6px 12px; }
.ghost:hover { background: var(--page); }
.ghost.small { padding: 3px 10px; font-size: 13px; }
.icon-btn { background: transparent; border: 1px solid var(--border); color: var(--text-2); width: 38px; height: 38px; font-size: 18px; }
.segmented { border: 0; margin: 0; padding: 0; display: flex; flex-direction: row; flex-wrap: wrap; gap: 0; }
.segmented legend { width: 100%; margin-bottom: 4px; }
.segmented label { position: relative; }
.segmented input { position: absolute; opacity: 0; inset: 0; }
.segmented span { display: inline-block; padding: 7px 12px; border: 1px solid var(--axis); margin-left: -1px; color: var(--text-2); min-height: 38px; }
.segmented label:first-of-type span { border-radius: 8px 0 0 8px; margin-left: 0; }
.segmented label:last-of-type span { border-radius: 0 8px 8px 0; }
.segmented input:checked + span { background: var(--series-1-wash); color: var(--text); font-weight: 600; }
.segmented input:focus-visible + span { outline: 2px solid var(--focus); outline-offset: 1px; }
.popular { flex-basis: 100%; display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.chip { font-size: 13px; background: transparent; color: var(--text-2); border: 1px solid var(--border); padding: 3px 10px; border-radius: 999px; }
.chip:hover { background: var(--page); color: var(--text); }
.check { display: flex; align-items: center; gap: 6px; color: var(--text-2); font-size: 14px; min-height: 38px; }

.error { color: var(--up-text); background: var(--surface); border: 1px solid var(--border); border-left: 4px solid var(--critical); border-radius: 8px; padding: 10px 12px; }
.placeholder { text-align: center; padding: 40px 16px; color: var(--text-2); }
.placeholder p + p { margin-top: 6px; }

/* 结论卡片 */
#result { display: flex; flex-direction: column; gap: 16px; transition: opacity .15s; }
#result.loading { opacity: 0.45; pointer-events: none; }
.verdict { border-left: 4px solid var(--accent, var(--axis)); }
.verdict[data-action="BUY_NOW"] { --accent: var(--good); }
.verdict[data-action="WAIT"] { --accent: var(--warning); }
.verdict[data-action="NEUTRAL"] { --accent: var(--axis); }
.verdict-head { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; }
.verdict-icon { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; font-size: 20px; font-weight: 700; color: #fff; background: var(--accent, var(--axis)); }
.verdict[data-action="WAIT"] .verdict-icon, .verdict[data-action="NEUTRAL"] .verdict-icon { color: #0b0b0b; }
.hero { text-align: right; }
.hero-label { display: block; font-size: 12px; color: var(--text-2); }
.hero-value { font-size: 40px; font-weight: 600; line-height: 1.1; }
@media (max-width: 560px) {
  .verdict-head { grid-template-columns: auto 1fr; }
  .hero { grid-column: 1 / -1; text-align: left; }
}
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; margin: 16px 0 12px; }
.tile { border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; }
.tile-label { font-size: 12px; color: var(--text-2); }
.tile-value { font-size: 20px; font-weight: 600; }
.tile-sub { font-size: 12px; color: var(--text-2); }
.down { color: var(--down-text); }
.up { color: var(--up-text); }
.reasons { margin: 0; padding-left: 20px; color: var(--text-2); }
.reasons li + li { margin-top: 2px; }
.target { margin-top: 10px; font-weight: 600; }
.warnings { margin-top: 10px; color: var(--text-2); font-size: 13px; }
.share-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 14px; }
.book-link { display: inline-flex; align-items: center; min-height: 34px; padding: 6px 14px; border-radius: 8px;
  border: 1px solid var(--series-1); color: var(--series-1); text-decoration: none; font-weight: 600; }
.book-link:hover { background: var(--series-1-wash); }
#book-note { margin-top: 6px; }

/* 图表 */
.legend { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 14px; font-size: 13px; color: var(--text-2); }
.legend li { display: flex; align-items: center; gap: 6px; }
.key { display: inline-block; width: 18px; height: 0; border-top: 2px solid var(--series-1); }
.key-dash { border-top-style: dashed; }
.key-band { height: 10px; border: 0; background: var(--series-1-wash); border-radius: 2px; }
.chart { position: relative; width: 100%; touch-action: pan-y; }
.chart svg { display: block; width: 100%; overflow: visible; }
.chart text { fill: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.chart .label-strong { fill: var(--text); font-weight: 600; }
.chart .label-2 { fill: var(--text-2); }
.grid line { stroke: var(--grid); stroke-width: 1; }
.axis-line { stroke: var(--axis); stroke-width: 1; }
.band { fill: var(--series-1-wash); }
.line { fill: none; stroke: var(--series-1); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.line-dash { stroke-dasharray: 5 4; }
.dot { fill: var(--series-1); stroke: var(--surface); stroke-width: 2; }
.marker-line { stroke: var(--axis); stroke-width: 1; }
.target-line { stroke: var(--text-2); stroke-width: 1; }
.crosshair { stroke: var(--text-2); stroke-width: 1; pointer-events: none; }
.bar { fill: var(--deemph); }
.bar.hl { fill: var(--series-1); }
.bar-hit { fill: transparent; cursor: pointer; }
.bar-hit:hover + .bar, .bar-hit:focus + .bar { opacity: 0.8; }
.tooltip {
  position: fixed; z-index: 10; pointer-events: none; min-width: 150px;
  background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12); padding: 8px 10px; font-size: 13px;
}
.tooltip .tt-title { color: var(--text-2); margin-bottom: 4px; }
.tooltip .tt-row { display: flex; align-items: center; gap: 8px; }
.tooltip .tt-row b { font-variant-numeric: tabular-nums; }
.tooltip .tt-key { width: 12px; border-top: 2px solid var(--series-1); }
.tooltip .tt-key.dash { border-top-style: dashed; }

/* 表格 */
.table-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
th { color: var(--text-2); font-weight: 500; font-size: 13px; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--page); }
@media (max-width: 560px) {
  th, td { padding: 6px 6px; font-size: 13px; }
  .opt { display: none; }
  .card { padding: 14px 12px; }
}
.data-table { margin-top: 8px; }
.data-table summary { cursor: pointer; color: var(--text-2); font-size: 13px; }
.data-table .table-scroll { max-height: 260px; overflow-y: auto; margin-top: 6px; }

/* 对话 */
.chat { display: flex; flex-direction: column; gap: 10px; }
.passcode { display: flex; flex-direction: column; gap: 4px; }
.passcode label { font-size: 12px; color: var(--text-2); }
.messages { display: flex; flex-direction: column; gap: 10px; max-height: 56vh; min-height: 120px; overflow-y: auto; }
.msg { padding: 8px 12px; border-radius: 10px; max-width: 92%; word-wrap: break-word; }
.msg.user { align-self: flex-end; background: var(--series-1-wash); }
.msg.bot { align-self: flex-start; border: 1px solid var(--border); }
.msg.bot p + p, .msg.bot ul + p, .msg.bot p + ul { margin-top: 6px; }
.msg.bot ul { margin: 0; padding-left: 18px; }
.msg.err { align-self: stretch; color: var(--up-text); font-size: 13px; }
.tool-line { font-size: 12px; color: var(--text-2); align-self: flex-start; }
.tool-line button { font-size: 12px; padding: 1px 6px; margin-left: 4px; }
.thinking { font-size: 13px; color: var(--text-2); }
.thinking::after { content: "…"; animation: blink 1.2s infinite; }
@keyframes blink { 50% { opacity: 0.2; } }
.suggestions { display: flex; flex-wrap: wrap; gap: 6px; }
.suggestions button { font-size: 13px; background: transparent; color: var(--text-2); border: 1px solid var(--border); padding: 4px 10px; border-radius: 999px; text-align: left; }
.suggestions button:hover { background: var(--page); }
.chat-form { display: flex; gap: 8px; align-items: flex-end; }
.chat-form .primary { flex-shrink: 0; white-space: nowrap; }

.foot { color: var(--text-2); font-size: 13px; padding-bottom: 32px; }
.foot p + p { margin-top: 4px; }