@charset "UTF-8";
:root {
  --bg: #47d58b;
  --surface: #ffffff;
  --surface-soft: #eef5dc;
  --text: #3f342e;
  --muted: #665d56;
  --brand: #82c419;
  --brand-deep: #668f15;
  --accent: #2a1714;
  --line: #d1d1d1;
  --notice: #f6f4dc;
  --notice-line: #d8d2a7;
  --shadow: 0 10px 24px rgba(42, 23, 20, .08);
  --radius: 16px;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.85;
  letter-spacing: .02em;
}
a { color: #506816; text-underline-offset: .18em; }
a:hover { text-decoration-thickness: 2px; }
.skip-link {
  position: absolute; left: 1rem; top: -10rem; z-index: 100;
  padding: .75rem 1rem; background: var(--surface); border: 2px solid var(--brand);
}
.skip-link:focus { top: 1rem; }
.site-header {
  width: min(calc(100% - 2rem), var(--max));
  margin-inline: auto;
  background: linear-gradient(135deg, #7fbe18, #8fca20);
  color: #fff;
  border-bottom: 12px solid #261815;
}
.header-inner, .main-wrap, .footer-inner { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; }
.site-header .header-inner { width: auto; margin-inline: 0; padding-inline: 1.4rem; }
.header-inner { padding: 1.1rem 0 1.25rem; }
.brand-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.site-name { margin: 0; font-size: clamp(1.2rem, 3vw, 1.65rem); font-weight: 800; }
.site-name a { color: #fff; text-decoration: none; }
.site-tagline { margin: .15rem 0 0; color: rgba(255,255,255,.92); font-size: .92rem; }
.home-link {
  flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: .55rem .95rem; border: 1px solid #dcebb3;
  border-radius: 10px; color: #fff; text-decoration: none; background: rgba(255,255,255,.14);
}
.home-link:hover { background: rgba(255,255,255,.25); }
.main-wrap { background: #fff; padding: 1.7rem 2rem 3rem; box-shadow: 0 0 0 1px rgba(38,24,21,.06); }
.breadcrumbs { margin: 0 0 1rem; color: var(--muted); font-size: .92rem; }
.breadcrumbs a { color: #587619; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: .35rem; list-style: none; margin: 0; padding: 0; }
.breadcrumbs li:not(:last-child)::after { content: "／"; margin-left: .35rem; color: #9b9b9b; }
.hero {
  background: linear-gradient(145deg, #ffffff, #f0f0f0);
  border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow);
  padding: clamp(1.4rem, 4vw, 2.6rem); margin-bottom: 1.5rem;
}
.eyebrow { margin: 0 0 .35rem; color: #6e9c13; font-weight: 800; letter-spacing: .08em; font-size: .86rem; }
h1 { margin: 0; font-size: clamp(1.9rem, 5vw, 3rem); line-height: 1.35; color: #453730; }
.lead { margin: 1rem 0 0; font-size: clamp(1.02rem, 2vw, 1.17rem); color: #5a5048; }
.page-layout { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 1.5rem; align-items: start; }
.article-card, .side-card, .notice, .index-intro {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 8px 24px rgba(42,23,20,.06);
}
.article-card { padding: clamp(1.25rem, 3.5vw, 2rem); }
.article-card section + section { margin-top: 2rem; padding-top: 1.7rem; border-top: 1px solid var(--line); }
h2 { margin: 0 0 .8rem; font-size: clamp(1.25rem, 3vw, 1.55rem); line-height: 1.45; }
.article-card p { margin: .8rem 0 0; }
.side-card { position: sticky; top: 1rem; padding: 1.15rem; }
.side-card h2 { font-size: 1.05rem; }
.side-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .45rem; }
.side-list a { display: block; padding: .5rem .65rem; border-radius: 10px; text-decoration: none; }
.side-list a:hover, .side-list a[aria-current="page"] { background: var(--surface-soft); color: #4e6516; font-weight: 700; }
.notice { margin-top: 1.5rem; padding: 1.2rem 1.35rem; background: var(--notice); border-color: var(--notice-line); }
.notice h2 { font-size: 1.08rem; }
.notice p { margin: .45rem 0 0; }
.page-nav { display: grid; grid-template-columns: 1fr auto 1fr; gap: .75rem; margin-top: 1.5rem; }
.page-nav a { min-height: 48px; display: flex; align-items: center; padding: .65rem .8rem; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; text-decoration: none; }
.page-nav .next { justify-content: flex-end; text-align: right; }
.page-nav .toc { justify-content: center; font-weight: 700; }
.index-intro { padding: clamp(1.2rem, 3vw, 1.8rem); margin-bottom: 1.3rem; }
.index-intro p { margin: 0; }
.toolbar { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; margin: 1rem 0 1.3rem; }
.search-box { flex: 1 1 320px; }
.search-box label { display: block; font-weight: 700; margin-bottom: .35rem; }
.search-box input { width: 100%; min-height: 48px; border: 1px solid #bbc891; border-radius: 12px; padding: .7rem .85rem; font: inherit; background: #fff; }
.search-box input:focus { outline: 3px solid rgba(138,198,26,.18); border-color: var(--brand); }
.result-count { margin: 0; color: var(--muted); }
.symptom-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.symptom-card { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 7px 20px rgba(42,23,20,.05); overflow: hidden; }
.symptom-card a { display: block; height: 100%; padding: 1.2rem; text-decoration: none; }
.symptom-card a:hover { background: var(--surface-soft); }
.card-no { display: inline-flex; align-items: center; justify-content: center; width: 2.2rem; height: 2.2rem; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 800; font-size: .86rem; }
.symptom-card h2 { margin: .8rem 0 .45rem; font-size: 1.22rem; color: #4d3e37; }
.symptom-card p { margin: 0; color: var(--muted); font-size: .94rem; }
.no-results { display: none; padding: 1.2rem; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; }
.guideline-note {
  margin-top: 1rem !important;
  padding: .95rem 1rem;
  background: #f4f5df;
  border-left: 5px solid var(--brand);
  color: #4f4a3d;
  font-size: .94rem;
  line-height: 1.75;
}
.site-footer { width: min(calc(100% - 2rem), var(--max)); margin-inline: auto; background: #261815; color: rgba(255,255,255,.84); }
.footer-inner { padding: 1.3rem 0; text-align: center; font-size: .9rem; }
.footer-inner a { color: #fff; }
.hidden { display: none !important; }
@media (max-width: 900px) {
  .page-layout { grid-template-columns: 1fr; }
  .side-card { position: static; }
  .symptom-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 620px) {
  .brand-row { align-items: flex-start; }
  .site-tagline { display: none; }
  .home-link { padding-inline: .7rem; font-size: .88rem; }
  .main-wrap { padding: 1.25rem 1rem 2.5rem; }
  .symptom-grid { grid-template-columns: 1fr; }
  .page-nav { grid-template-columns: 1fr; }
  .page-nav .next, .page-nav .toc { justify-content: flex-start; text-align: left; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

.original-content > p:first-child { margin-top: 0; }
.original-content h2 { margin-top: 1.8rem; padding-left: .75rem; border-left: 4px solid var(--brand); }
.original-content .list-line { margin: .35rem 0; padding-left: .5rem; }
.original-content .note-line { margin-top: 1.3rem; padding: .9rem 1rem; background: var(--surface-soft); border-radius: 10px; font-size: .93rem; }
.original-content .aside-text { color: var(--muted); font-size: .94rem; }

.diagram-card {
  margin: 1.4rem auto 0;
  padding: 1rem;
  background: linear-gradient(145deg, #ffffff, #f5f5f1);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.diagram-card img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
}
.diagram-card figcaption {
  margin-top: .7rem;
  color: #4f463f;
  font-size: .93rem;
  text-align: center;
}
.diagram-narrow {
  max-width: 470px;
}