:root {
  color-scheme: dark;
  --ink: #f8f5ed;
  --muted: #b9b6ad;
  --dim: #84827c;
  --bg: #080a09;
  --surface: #101412;
  --surface-2: #161c19;
  --line: #303832;
  --gold: #e5bd63;
  --gold-soft: #ffe7aa;
  --green: #2fc47d;
  --green-deep: #123e2b;
  --danger: #ff9d8f;
  --max: 1120px;
  font-family: Inter, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { max-width: 100%; scroll-behavior: smooth; overflow-x: clip; }
body {
  margin: 0;
  max-width: 100%;
  overflow-x: clip;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
}

a { color: inherit; }
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.tool-shell {
  min-height: 100vh;
  background:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px),
    var(--bg);
  background-size: 44px 44px;
}

.tool-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 10px max(20px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(255,255,255,.1);
  background: rgba(8,10,9,.94);
  backdrop-filter: blur(14px);
}

.tool-brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}
.tool-brand img { width: 42px; height: 42px; object-fit: contain; }
.candidate-badge {
  padding: 5px 9px;
  border: 1px solid rgba(229,189,99,.4);
  border-radius: 999px;
  color: var(--gold-soft);
  font-size: 12px;
  font-weight: 700;
}
.nav-back {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  text-decoration: none;
}
.nav-back:hover { border-color: var(--gold); color: var(--ink); }

.tool-hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 58px 20px 38px;
}
.tool-kicker {
  margin: 0 0 10px;
  color: var(--green);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}
.tool-hero h1 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(34px, 6vw, 64px);
  line-height: 1.08;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}
.tool-hero .lede {
  max-width: 780px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 18px;
}
.privacy-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 24px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}
.privacy-strip strong { color: var(--green); }
.direct-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
}
.direct-contact > span { flex: 1 1 250px; color: var(--muted); }
.bottom-contact { margin-top: 30px; padding-top: 22px; border-top: 1px solid var(--line); }

.tool-main { max-width: var(--max); margin: 0 auto; padding: 0 20px 80px; }
.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr);
  gap: 28px;
  align-items: start;
}
.tool-layout > *, .triage-row > *, .segmented { min-width: 0; }
.tool-panel {
  min-width: 0;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(16,20,18,.96);
}
.tool-panel-head { padding: 22px 24px; border-bottom: 1px solid var(--line); }
.tool-panel-head h2 { margin: 0; font-size: 23px; }
.tool-panel-head p { margin: 7px 0 0; color: var(--muted); }
.tool-panel-body { padding: 24px; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; }
.field { display: grid; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label, .field legend { color: var(--ink); font-weight: 700; }
.field small { color: var(--dim); }
input, select, textarea {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid #3c463f;
  border-radius: 6px;
  background: #0b0e0c;
  color: var(--ink);
  outline: none;
}
textarea { min-height: 108px; resize: vertical; }
input:focus, select:focus, textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(229,189,99,.14);
}

.fieldset {
  grid-column: 1 / -1;
  margin: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
}
.fieldset legend { padding: 0 8px; }
.check-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; margin-top: 10px; }
.check-row, .radio-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--muted);
}
.check-row input, .radio-row input { width: 18px; height: 18px; min-height: 0; margin: 4px 0 0; accent-color: var(--green); }

.extra-row {
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(120px,.45fr);
  gap: 10px;
  margin-top: 10px;
}
.section-rule { height: 1px; margin: 24px 0; background: var(--line); }
.subhead { margin: 0 0 12px; font-size: 18px; }

.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.action {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #171b18;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}
.action.primary { border-color: var(--gold); background: var(--gold); color: #17120a; }
.action.green { border-color: var(--green); background: var(--green-deep); color: #d9ffea; }
.action:hover { filter: brightness(1.08); }
.action:focus-visible { outline: 3px solid rgba(229,189,99,.35); outline-offset: 2px; }

.result-panel { position: sticky; top: 92px; min-height: 380px; }
.result-empty { padding: 40px 24px; color: var(--muted); }
.result-empty strong { display: block; margin-bottom: 8px; color: var(--ink); font-size: 21px; }
.result-body { padding: 24px; }
.result-total {
  margin: 0 0 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.result-total span { display: block; color: var(--muted); }
.result-total strong { display: block; margin-top: 5px; color: var(--gold-soft); font-size: 36px; }
.result-group { margin-top: 20px; }
.result-group h3 { margin: 0 0 10px; font-size: 17px; }
.result-list { margin: 0; padding-left: 20px; color: var(--muted); }
.result-list li + li { margin-top: 7px; }
.warning {
  margin-top: 18px;
  padding: 14px 16px;
  border-left: 3px solid var(--gold);
  background: rgba(229,189,99,.08);
  color: var(--muted);
}
.status-live { min-height: 24px; margin: 12px 0 0; color: var(--green); font-size: 14px; }

.static-content { margin-top: 56px; }
.static-content.compact-top { margin-top: 40px; }
.section-heading { max-width: 760px; margin-bottom: 24px; }
.section-heading h2 { margin: 0; font-size: clamp(28px, 4vw, 42px); }
.section-heading p { color: var(--muted); }
.explain-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.explain-item { padding: 22px; border-top: 2px solid var(--gold); background: var(--surface); }
.explain-item h3 { margin: 0 0 9px; font-size: 19px; }
.explain-item p { margin: 0; color: var(--muted); }

.steps { display: grid; gap: 0; border-top: 1px solid var(--line); }
.step {
  display: grid;
  grid-template-columns: 56px minmax(0,1fr);
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.step-number { color: var(--gold); font-size: 24px; font-weight: 900; }
.step h3 { margin: 0; font-size: 19px; }
.step p { margin: 4px 0 0; color: var(--muted); }

.campus-results { display: grid; gap: 14px; }
.campus-result { padding: 18px; border: 1px solid var(--line); border-radius: 6px; background: #0c100e; }
.campus-result h3 { margin: 0; font-size: 19px; }
.campus-result p { margin: 7px 0 0; color: var(--muted); }
.campus-meta { display: flex; flex-wrap: wrap; gap: 6px 12px; margin-top: 11px; color: var(--dim); font-size: 13px; }
.campus-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.mini-link { color: var(--gold-soft); font-weight: 700; }

.triage-list { display: grid; gap: 12px; }
.triage-row {
  display: grid;
  grid-template-columns: minmax(0,1fr) 205px;
  gap: 16px;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
.triage-row:last-child { border-bottom: 0; }
.triage-label strong { display: block; }
.triage-label span { color: var(--dim); font-size: 13px; }
.segmented { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.segmented label {
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: var(--muted);
  cursor: pointer;
}
.segmented input {
  position: absolute;
  width: 1px;
  height: 1px;
  min-height: 0;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}
.segmented label:has(input:checked) { border-color: var(--green); background: var(--green-deep); color: #e4ffef; }

.source-list { display: grid; gap: 12px; }
.source-row { padding: 15px 0; border-bottom: 1px solid var(--line); }
.source-row:last-child { border-bottom: 0; }
.source-row a { color: var(--gold-soft); }
.source-row p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }

.interval-table { display: grid; gap: 12px; }
.interval-row {
  display: grid;
  grid-template-columns: minmax(100px,.45fr) repeat(2,minmax(0,1fr));
  gap: 10px;
  align-items: end;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.interval-row label { display: grid; gap: 5px; color: var(--dim); font-size: 13px; }
.plan-grid, .comparison-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
.plan-card { grid-column: auto; }
.field-note { color: var(--muted); }
.comparison-card { padding: 15px; border: 1px solid var(--line); border-radius: 6px; background: #0c100e; }
.comparison-card h4 { margin: 0 0 8px; }
.comparison-card p { color: var(--muted); }
.status-chip { display: inline-flex; width: fit-content; margin: 0 0 10px; padding: 4px 8px; border-radius: 4px; font-size: 13px; font-weight: 800; }
.status-chip.verified { background: rgba(47,196,125,.16); color: #a8ffd0; }
.status-chip.pending { background: rgba(229,189,99,.14); color: var(--gold-soft); }
.metric-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 8px; }
.metric-grid > div { padding: 12px; background: var(--surface-2); }
.metric-grid span, .metric-grid strong { display: block; }
.metric-grid span { color: var(--dim); font-size: 12px; }
.metric-grid strong { margin-top: 4px; font-size: 15px; }
.copy-fallback { margin-top: 16px; color: var(--muted); }
.copy-fallback summary { cursor: pointer; }
.copy-fallback textarea { margin-top: 10px; min-height: 180px; }
.date-result { font-size: 23px !important; overflow-wrap: anywhere; }

.timeline-figure { margin: 0; padding: 24px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); }
.timeline-labels { display: flex; justify-content: space-between; gap: 10px; color: var(--dim); font-size: 12px; }
.timeline-track { position: relative; height: 42px; margin-top: 10px; border: 1px solid var(--line); background: #0b0e0c; overflow: hidden; }
.timeline-fill { position: absolute; left: var(--start); width: var(--width); height: 100%; display: flex; align-items: center; padding: 0 10px; color: #07100b; font-weight: 800; white-space: nowrap; }
.timeline-fill.family-a { background: var(--gold); }
.timeline-fill.family-b { background: #80c9ff; }
.timeline-fill.gap { background: var(--danger); }
.timeline-figure figcaption { margin-top: 16px; color: var(--muted); }

.route-diagram { display: grid; grid-template-columns: minmax(0,1fr) 48px minmax(0,1fr); gap: 12px; align-items: stretch; }
.route-diagram article { padding: 22px; border: 1px solid var(--line); border-top: 3px solid var(--gold); background: var(--surface); }
.route-diagram article:last-child { border-top-color: var(--green); }
.route-diagram h3 { margin: 10px 0 7px; }
.route-diagram p { margin: 0; color: var(--muted); }
.route-number { color: var(--gold-soft); font-weight: 900; }
.route-divider { display: grid; place-items: center; color: var(--dim); font-weight: 800; }
.scheme-card { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); }
.scheme-heading { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; align-items: center; }
.scheme-heading h4, .scheme-self h4 { margin: 0; }
.fact-list { display: grid; gap: 8px; margin: 14px 0; }
.fact-list > div { display: grid; grid-template-columns: 80px minmax(0,1fr); gap: 10px; }
.fact-list dt { color: var(--dim); }
.fact-list dd { margin: 0; color: var(--muted); }
.source-note { font-size: 13px; }
.source-note a, .scheme-self a { color: var(--gold-soft); }
.scheme-self { margin-top: 14px; padding: 14px; border-left: 3px solid var(--green); background: rgba(47,196,125,.07); }

.tool-crosslinks {
  display: grid;
  grid-template-columns: repeat(3,minmax(0,1fr));
  gap: 14px;
  margin-top: 56px;
}
.tool-crosslinks a {
  min-height: 118px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  text-decoration: none;
}
.tool-crosslinks strong { display: block; color: var(--gold-soft); }
.tool-crosslinks span { display: block; margin-top: 6px; color: var(--muted); }

.tool-footer { border-top: 1px solid var(--line); padding: 30px 20px 44px; color: var(--dim); }
.tool-footer-inner { max-width: var(--max); margin: 0 auto; display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.tool-footer a { color: var(--muted); }

@media (max-width: 880px) {
  .tool-layout { grid-template-columns: 1fr; }
  .result-panel { position: static; }
  .explain-grid { grid-template-columns: 1fr; }
  .tool-crosslinks { grid-template-columns: 1fr; }
  .plan-grid, .comparison-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .tool-nav { min-height: 62px; padding: 8px 14px; }
  .tool-brand span:not(.candidate-badge) { display: none; }
  .candidate-badge { font-size: 11px; }
  .tool-hero { padding: 38px 16px 26px; }
  .tool-hero h1 { font-size: 34px; }
  .tool-hero .lede { font-size: 16px; }
  .tool-main { padding: 0 14px 56px; }
  .tool-panel-head, .tool-panel-body, .result-body { padding: 18px; }
  .form-grid, .check-grid { grid-template-columns: 1fr; }
  .extra-row { grid-template-columns: 1fr; }
  .actions .action { width: 100%; }
  .triage-row { grid-template-columns: 1fr; gap: 10px; }
  .segmented label { padding: 8px 6px; text-align: center; overflow-wrap: anywhere; }
  .privacy-strip { display: grid; gap: 6px; }
  .direct-contact { display: grid; }
  .direct-contact .action { width: 100%; }
  .interval-row { grid-template-columns: 1fr; align-items: stretch; }
  .metric-grid { grid-template-columns: 1fr; }
  .route-diagram { grid-template-columns: 1fr; }
  .route-divider { min-height: 32px; }
  .timeline-figure { padding: 16px 10px; }
  .timeline-labels { font-size: 10px; }
  .timeline-fill { padding: 0 5px; font-size: 11px; overflow: hidden; }
  .fact-list > div { grid-template-columns: 1fr; gap: 2px; }
}

@media print {
  .tool-nav, .tool-hero, .form-panel, .static-content, .tool-crosslinks, .tool-footer, .result-panel .actions { display: none !important; }
  body, .tool-shell { background: #fff; color: #111; }
  .tool-main, .tool-layout { display: block; max-width: none; padding: 0; }
  .result-panel { border: 0; background: #fff; color: #111; }
  .result-list, .warning, .result-total span { color: #333; }
  .result-total strong { color: #111; }
}