:root {
  color-scheme: light dark;
  --page-bg: #eaf4fc;
  --accent: #1565c0;
  --accent-text: #f8fafc;
  --ink: #17222c;
  --muted: #667684;
  --paper: rgba(251, 253, 254, 0.96);
  --soft: color-mix(in srgb, var(--accent) 9%, #f8fafb);
  --line: color-mix(in srgb, var(--accent) 13%, transparent);
  --radius: 16px;
  --shadow: 0 16px 45px color-mix(in srgb, var(--accent) 14%, transparent);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100dvh;
  background: #dfe5e9;
  color: var(--ink);
  font-family: "Noto Sans TC", "Noto Sans SC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.app-shell {
  position: relative;
  width: 100%;
  max-width: 430px;
  min-height: 100dvh;
  margin: 0 auto;
  padding: 0 10px calc(24px + env(safe-area-inset-bottom));
  overflow: clip;
  background:
    radial-gradient(circle 360px at 22% 0, rgba(255,255,255,.92), transparent 70%),
    linear-gradient(180deg, color-mix(in srgb, var(--page-bg) 35%, white) 0, var(--page-bg) 460px, color-mix(in srgb, var(--page-bg) 35%, white) 920px);
  box-shadow: 0 0 70px rgba(27, 42, 55, .14);
}
.hero { position: relative; padding: 32px 14px 22px; text-align: center; }
.language-switch { display: inline-flex; gap: 2px; margin: 0 0 18px; border: 1px solid var(--line); border-radius: 999px; padding: 3px; background: rgba(255,255,255,.64); }
.language-switch a { min-width: 62px; border-radius: 999px; padding: 7px 12px; color: var(--muted); font-size: 12px; font-weight: 850; line-height: 1; text-decoration: none; }
.language-switch a.is-active { background: var(--accent); color: var(--accent-text); }
.hospital-name { margin: 0; color: color-mix(in srgb, var(--accent) 72%, var(--ink)); font-size: 18px; font-weight: 900; line-height: 1.2; letter-spacing: -.02em; }
.hospital-subtitle { margin: 3px 0 0; color: var(--muted); font-size: 10px; letter-spacing: .03em; }
.hero h1 { margin: 12px 0 0; font-size: clamp(34px, 9vw, 40px); line-height: 1.05; letter-spacing: -.055em; }
.event-title { margin: 11px 0 0; color: var(--accent); font-size: 18px; font-weight: 850; }
.event-date { margin: 6px 0 0; font-size: 14px; font-weight: 800; }
.tax-note { margin: 5px 0 0; color: var(--muted); font-size: 11px; }

.finder {
  position: sticky;
  top: 8px;
  z-index: 5;
  padding: 10px;
  margin-bottom: 16px;
  border: 1px solid color-mix(in srgb, var(--page-bg) 18%, #d9e2e7);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--page-bg) 10%, #f8fafb);
  box-shadow: 0 10px 30px color-mix(in srgb, var(--accent) 13%, transparent);
}
.search-field { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 8px; min-height: 44px; padding: 0 12px; border: 1px solid color-mix(in srgb, var(--accent) 24%, #d5e0e6); border-radius: 11px; background: color-mix(in srgb, var(--page-bg) 4%, #fff); }
.search-label { color: var(--accent); font-size: 12px; font-weight: 900; }
.search-field input { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--ink); font-size: 15px; }
.search-field input::placeholder { color: #71808b; opacity: 1; }
.search-field:focus-within { border-color: color-mix(in srgb, var(--accent) 54%, #d5e0e6); box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 11%, transparent); }
.clear-search { border: 0; padding: 5px 0 5px 7px; background: transparent; color: var(--accent); font-size: 12px; font-weight: 800; cursor: pointer; }
.search-status { margin: 6px 2px 0; color: var(--muted); font-size: 10.5px; text-align: right; }
.category-nav { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 1px 1px; }
.category-nav a { flex: 0 0 auto; border: 1px solid var(--line); border-radius: 999px; padding: 6px 11px; background: rgba(255,255,255,.66); color: color-mix(in srgb, var(--accent) 82%, #17222c); font-size: 12px; font-weight: 850; text-decoration: none; }
.category-nav a.is-active { border-color: var(--accent); background: var(--accent); color: var(--accent-text); }
.category-nav a:active, .no-results button:active { transform: scale(.98); }

.price-sections { display: grid; gap: 18px; }
.category-card { scroll-margin-top: 154px; overflow: hidden; border-radius: var(--radius); background: var(--paper); box-shadow: var(--shadow); }
.category-header { padding: 17px 15px; background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 92%, #243341), color-mix(in srgb, var(--accent) 72%, #8fd4ed)); color: var(--accent-text); }
.category-header h2 { margin: 0; font-size: 22px; line-height: 1.2; letter-spacing: -.025em; }
.category-header p { margin: 7px 0 0; color: inherit; opacity: .88; font-size: 12px; font-weight: 650; line-height: 1.45; }
.treatment + .treatment { border-top: 7px solid color-mix(in srgb, var(--page-bg) 38%, #f6f8f9); }
.treatment-header { padding: 10px 13px; background: var(--soft); }
.treatment-header h3 { margin: 0; color: color-mix(in srgb, var(--accent) 68%, #17222c); font-size: 16px; line-height: 1.3; }
.treatment-header p { margin: 4px 0 0; color: var(--muted); font-size: 11px; line-height: 1.4; }
.price-item { display: grid; grid-template-columns: minmax(0, 1fr) minmax(108px, 42%); gap: 10px; align-items: start; padding: 13px; }
.price-item + .price-item { border-top: 1px solid var(--line); }
.price-item[hidden], .treatment[hidden], .category-card[hidden] { display: none; }
.item-copy { min-width: 0; }
.item-copy h4 { margin: 0 0 3px; font-size: 13px; line-height: 1.42; overflow-wrap: anywhere; }
.item-copy p { margin: 0; color: #3f4b54; font-size: 12.5px; font-weight: 650; line-height: 1.5; overflow-wrap: anywhere; }
.item-copy small { display: block; margin-top: 5px; color: var(--muted); font-size: 10.5px; line-height: 1.45; }
.price-text { align-self: end; margin: 0; color: color-mix(in srgb, var(--accent) 70%, #17222c); font-size: 14px; font-weight: 900; line-height: 1.48; text-align: right; overflow-wrap: anywhere; }

.no-results { margin: 22px 0; padding: 36px 22px; border-radius: var(--radius); background: var(--paper); text-align: center; box-shadow: var(--shadow); }
.no-results h2 { margin: 0; font-size: 19px; }
.no-results p { margin: 7px 0 15px; color: var(--muted); font-size: 13px; }
.no-results button { display: inline-block; border: 0; border-radius: 10px; padding: 10px 15px; background: var(--accent); color: var(--accent-text); font-weight: 850; cursor: pointer; }
.empty-page { position: relative; display: grid; align-content: center; min-height: 100dvh; padding: 30px 20px; text-align: center; }
.empty-label { margin: 0; color: var(--accent); font-size: 12px; font-weight: 900; }
.empty-page h1 { margin: 9px 0; font-size: 28px; }
.language-empty { margin: 4px 0 22px; border: 1px dashed var(--line); border-radius: var(--radius); padding: 34px 20px; background: var(--paper); text-align: center; box-shadow: var(--shadow); }
.language-empty h2 { margin: 0; font-size: 18px; }
.language-empty p { margin: 7px 0 0; color: var(--muted); font-size: 12px; }

@media (max-width: 360px) {
  .app-shell { padding-right: 8px; padding-left: 8px; }
  .price-item { grid-template-columns: minmax(0, 1fr) minmax(98px, 41%); gap: 8px; padding: 12px 10px; }
  .price-text { font-size: 12.5px; }
  .item-copy h4 { font-size: 12.5px; }
  .item-copy p { font-size: 11.5px; }
}

@media (prefers-color-scheme: dark) {
  :root { --ink: #edf3f6; --muted: #a7b5be; --paper: rgba(25, 35, 43, .96); --soft: color-mix(in srgb, var(--accent) 17%, #1d2931); --line: rgba(220,235,242,.12); --shadow: 0 16px 45px rgba(0,0,0,.25); }
  body { background: #10171c; }
  .app-shell { background: radial-gradient(circle 360px at 22% 0, color-mix(in srgb, var(--accent) 25%, transparent), transparent 70%), linear-gradient(180deg, color-mix(in srgb, var(--page-bg) 28%, #111820) 0, #111820 460px, #172129 920px); }
  .finder { border-color: rgba(220,235,242,.16); background: color-mix(in srgb, var(--page-bg) 9%, #1c2830); }
  .search-field { background: #17232b; }
  .hospital-name, .treatment-header h3, .price-text { color: color-mix(in srgb, var(--accent) 58%, #d9f1ff); }
  .category-nav a { background: rgba(28,40,48,.8); color: #dfeaf0; }
  .language-switch { background: rgba(28,40,48,.72); }
  .item-copy p { color: #c7d2d8; }
  .treatment + .treatment { border-top-color: #111820; }
  .search-field input::placeholder { color: #a5b2ba; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

@media print {
  body, .app-shell { background: #fff; }
  .app-shell { max-width: none; box-shadow: none; }
  .finder { display: none; }
  .category-card { break-inside: avoid; box-shadow: none; border: 1px solid #d8e0e5; }
}