:root {
  color-scheme: light;
  --paper: #f3ead6;
  --paper-light: #fffaf0;
  --paper-deep: #e4d5b6;
  --ink: #1d2923;
  --muted: #53635a;
  --pine: #244b3e;
  --pine-soft: #d9e3d8;
  --cinnabar: #8c2e25;
  --gold: #8b642c;
  --line: rgba(45, 57, 47, 0.2);
  --panel: rgba(255, 250, 240, 0.92);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(ellipse at 8% 16%, rgba(36, 75, 62, 0.11), transparent 30rem),
    radial-gradient(ellipse at 90% 44%, rgba(140, 46, 37, 0.06), transparent 27rem),
    repeating-linear-gradient(97deg, rgba(99, 79, 48, 0.018) 0 1px, transparent 1px 7px),
    var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", system-ui, sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; }
a:focus-visible, button:focus-visible, select:focus-visible { outline: 3px solid var(--cinnabar); outline-offset: 3px; }

.route-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 13px max(20px, calc((100% - 1180px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(255, 250, 240, 0.9);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  backdrop-filter: blur(14px);
}
.back-link { color: var(--pine); font-weight: 800; text-decoration: none; }
.back-link::before, footer a::before { content: "◉"; margin-right: 6px; color: var(--cinnabar); font-size: 9px; }
main, footer { width: min(1180px, calc(100% - 32px)); margin-inline: auto; }

.hero { padding: clamp(48px, 8vw, 92px) 0 clamp(36px, 5vw, 62px); }
.hero-inner { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(420px, 1.2fr); align-items: center; gap: clamp(28px, 5vw, 72px); }
.hero-inner > *, .principles article > *, .disciple-card > *, .finder-site > * { min-width: 0; }
.hero-copy { position: relative; z-index: 1; }
.eyebrow, .section-kicker { margin: 0 0 9px; color: var(--cinnabar); font-size: 11px; font-weight: 900; letter-spacing: 0.18em; }
h1, h2, h3 { font-family: "Songti TC", "Noto Serif TC", "PMingLiU", serif; }
h1 { margin: 0; font-size: clamp(44px, 7.2vw, 82px); line-height: 1.1; letter-spacing: 0.04em; }
.hero-lead { max-width: 590px; margin: 20px 0 27px; color: var(--muted); font-size: clamp(16px, 1.8vw, 20px); }
.hero-visual { position: relative; margin: 0; }
.hero-visual::before { content: ""; position: absolute; inset: -12px; border: 1px solid rgba(36, 75, 62, 0.16); border-radius: 48% 52% 44% 56% / 46% 42% 58% 54%; transform: rotate(-1deg); }
.hero-visual img { position: relative; display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 48% 52% 44% 56% / 46% 42% 58% 54%; box-shadow: 0 24px 52px rgba(63, 47, 27, 0.16); }
.hero-visual figcaption { position: relative; width: min(88%, 560px); margin: -18px auto 0; padding: 12px 16px; border: 1px solid var(--line); background: var(--paper-light); color: var(--muted); font-size: 12px; text-align: center; box-shadow: 0 10px 24px rgba(63, 47, 27, 0.1); }
.hero-visual figcaption span { display: inline-block; margin-right: 8px; padding: 2px 7px; background: var(--cinnabar); color: #fff8ec; font-family: "Songti TC", serif; letter-spacing: 0.12em; }
.route-nav { display: flex; flex-wrap: wrap; gap: 9px; }
.route-nav a { min-height: 44px; display: inline-flex; align-items: center; padding: 8px 13px; border: 1px solid rgba(36, 75, 62, 0.3); background: rgba(255, 250, 240, 0.7); color: var(--pine); font-size: 12px; font-weight: 800; text-decoration: none; }
.route-nav a::before { content: "◆"; margin-right: 7px; color: var(--cinnabar); font-size: 7px; }
.route-nav a:hover { background: var(--pine); color: var(--paper-light); }

.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-bottom: 22px; }
.principles article, .section-card { border: 1px solid var(--line); background: var(--panel); box-shadow: 0 18px 46px rgba(63, 47, 27, 0.1); }
.principles article { position: relative; min-height: 190px; display: grid; grid-template-columns: 1fr 104px; align-items: end; gap: 8px; overflow: hidden; padding: 22px 12px 18px 22px; }
.principles article::after { content: ""; position: absolute; right: -40px; bottom: -50px; width: 150px; height: 150px; border: 1px solid rgba(140, 46, 37, 0.09); border-radius: 50%; }
.principles article img { position: relative; z-index: 1; width: 104px; height: 132px; object-fit: cover; object-position: top center; border-radius: 52% 52% 8px 8px; mix-blend-mode: multiply; }
.principles span, .phase { color: var(--cinnabar); font-size: 11px; font-weight: 900; letter-spacing: 0.12em; }
.principles h2, .timeline h3, .parent-grid h3 { margin: 5px 0 7px; }
.principles p, .timeline p, .parent-grid p { margin: 0; color: var(--muted); font-size: 14px; }

.section-card { margin: 22px 0; padding: clamp(24px, 5vw, 52px); scroll-margin-top: 70px; }
.section-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.section-heading h2 { margin: 0; font-size: clamp(28px, 4.5vw, 48px); line-height: 1.2; }
.section-heading p:last-child { max-width: 760px; margin: 10px 0 0; color: var(--muted); }
.copy-route, .finder-form button { min-height: 44px; padding: 0 16px; border: 1px solid rgba(140, 46, 37, 0.44); background: rgba(140, 46, 37, 0.06); color: var(--cinnabar); font: inherit; font-size: 12px; font-weight: 900; white-space: nowrap; cursor: pointer; }
.copy-route:hover, .finder-form button:hover { background: var(--cinnabar); color: var(--paper-light); }

.disciples { position: relative; overflow: hidden; }
.disciples::before { content: "七十二賢"; position: absolute; right: -20px; top: 16px; color: rgba(140, 46, 37, 0.05); font-family: "Songti TC", serif; font-size: clamp(58px, 10vw, 120px); letter-spacing: 0.12em; pointer-events: none; }
.disciples-grid { position: relative; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.disciple-card { display: grid; grid-template-columns: 155px 1fr; gap: 20px; min-height: 230px; padding: 14px; border: 1px solid var(--line); background: rgba(243, 234, 214, 0.45); }
.disciple-card img { width: 155px; height: 100%; min-height: 200px; object-fit: cover; object-position: top center; filter: saturate(0.88); }
.disciple-card h3 { margin: 2px 0 7px; font-size: 27px; }
.disciple-card p:not(.disciple-tag) { margin: 0; color: var(--muted); font-size: 14px; }
.disciple-tag { margin: 6px 0 0; color: var(--cinnabar); font-size: 11px; font-weight: 900; letter-spacing: 0.08em; }
.disciple-card a { display: inline-flex; align-items: center; min-height: 44px; margin-top: 10px; color: var(--pine); font-size: 12px; font-weight: 800; text-underline-offset: 4px; }
.disciple-card a::before { content: "卷"; display: inline-grid; place-items: center; width: 24px; height: 24px; margin-right: 7px; border: 1px solid var(--cinnabar); color: var(--cinnabar); text-decoration: none; }
.source-note { margin: 18px 0 0; padding: 13px 15px; border-left: 3px solid var(--cinnabar); background: rgba(140, 46, 37, 0.05); color: var(--muted); font-size: 12px; }

.finder-form { display: grid; grid-template-columns: 1fr 1.3fr auto; align-items: end; gap: 12px; }
.finder-form label { display: grid; gap: 7px; }
.finder-form label > span { color: var(--muted); font-size: 12px; font-weight: 800; }
select { width: 100%; min-height: 48px; padding: 0 42px 0 14px; border: 1px solid var(--line); background: var(--paper-light); color: var(--ink); font: inherit; font-size: 14px; }
.finder-form button { min-height: 48px; }
.finder-result { display: grid; gap: 12px; margin-top: 18px; }
.finder-result:empty { display: none; }
.finder-summary { padding: 15px 17px; border-left: 3px solid var(--cinnabar); background: rgba(140, 46, 37, 0.05); color: var(--muted); }
.finder-sites { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.finder-site { display: grid; grid-template-columns: 88px 1fr; align-items: center; gap: 13px; min-height: 112px; padding: 10px; border: 1px solid var(--line); background: rgba(243, 234, 214, 0.42); text-decoration: none; }
.finder-site:hover { border-color: var(--cinnabar); transform: translateY(-2px); }
.finder-site img { width: 88px; height: 88px; object-fit: cover; object-position: top; }
.finder-site span { display: grid; gap: 3px; }
.finder-site strong { color: var(--ink); }
.finder-site small { color: var(--muted); line-height: 1.45; }
.finder-site em { color: var(--cinnabar); font-size: 11px; font-style: normal; font-weight: 800; }

.timeline, .parent-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.timeline article, .parent-grid article { padding: 20px; border: 1px solid var(--line); background: rgba(243, 234, 214, 0.4); }
.phase { display: inline-block; padding: 3px 8px; border: 1px solid var(--cinnabar); background: var(--paper-light); }
.site-links { display: grid; gap: 8px; margin-top: 16px; }
.site-links a { display: grid; grid-template-columns: 52px 1fr; align-items: center; gap: 10px; min-height: 64px; padding: 6px; border: 1px solid rgba(36, 75, 62, 0.25); background: rgba(255, 250, 240, 0.76); color: var(--pine); text-decoration: none; }
.site-links a:hover { border-color: var(--cinnabar); background: var(--paper-light); }
.site-links img { width: 52px; height: 52px; object-fit: cover; object-position: top; }
.site-links span { display: grid; }
.site-links strong { font-size: 13px; }
.site-links small { color: var(--muted); font-size: 10px; }
.weekly-card { margin-top: 16px; padding: 17px 19px; border: 1px solid rgba(36, 75, 62, 0.3); background: rgba(36, 75, 62, 0.06); }
.weekly-card strong { color: var(--pine); }
.weekly-card p { margin: 4px 0 0; color: var(--muted); }

footer { display: flex; justify-content: space-between; gap: 24px; padding: 30px 0 52px; color: var(--muted); font-size: 12px; }
footer p { margin: 0; }
footer a { color: var(--pine); white-space: nowrap; }

@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-copy { text-align: center; }
  .hero-lead { margin-inline: auto; }
  .route-nav { justify-content: center; }
  .hero-visual { width: min(760px, 100%); margin-inline: auto; }
  .principles, .timeline, .parent-grid { grid-template-columns: 1fr; }
  .principles article { grid-template-columns: 1fr 130px; }
  .finder-sites { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .disciples-grid, .finder-sites { grid-template-columns: 1fr; }
  .finder-form { grid-template-columns: 1fr 1fr; }
  .finder-form button { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .route-header span { display: none; }
  .hero { padding-top: 42px; }
  h1 { font-size: clamp(40px, 14vw, 54px); }
  .route-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .route-nav a { justify-content: center; padding-inline: 8px; }
  .hero-visual figcaption { width: 94%; }
  .section-card { padding: 22px 16px; }
  .section-heading { display: grid; }
  .copy-route { width: 100%; }
  .finder-form { grid-template-columns: 1fr; }
  .finder-form button { grid-column: auto; }
  .disciple-card { grid-template-columns: 112px 1fr; gap: 13px; min-height: 0; }
  .disciple-card img { width: 112px; min-height: 170px; }
  .disciple-card h3 { font-size: 23px; }
  footer { display: grid; }
}
@media (max-width: 400px) {
  .disciple-card { grid-template-columns: 1fr; }
  .disciple-card img { width: 100%; height: 220px; }
  .principles article { grid-template-columns: 1fr 76px; padding-right: 8px; }
  .principles article img { width: 76px; height: 108px; }
  .principles h2 { font-size: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}