:root {
  color-scheme: light;
  --paper: #f8f6ef;
  --white: #fffefa;
  --ink: #162d25;
  --green: #173b31;
  --muted: #4b6057;
  --gold: #85512c;
  --line: #dcded2;
  --radius: 18px;
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.85;
}
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--green); text-underline-offset: .2em; }
a:focus-visible, summary:focus-visible { outline: 3px solid #a76231; outline-offset: 5px; }
h1, h2, h3, p { overflow-wrap: anywhere; }
h1, h2, h3 { line-height: 1.42; margin-block: 0 .65em; }
p { margin-block: 0 1.1em; }
.wrap { width: min(100% - 48px, 1152px); margin-inline: auto; }
.skip { position: absolute; z-index: 10; top: .5rem; left: .5rem; padding: .6rem 1rem; background: white; transform: translateY(-160%); }
.skip:focus { transform: translateY(0); }
.site-head { border-bottom: 1px solid var(--line); background: var(--white); }
.head-inner { position: relative; min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); font-weight: 800; line-height: 1.35; text-decoration: none; }
.brand img { width: 42px; flex-shrink: 0; }
.brand small { display: block; color: var(--muted); font-size: .7rem; margin-bottom: 3px; font-weight: 600; letter-spacing: .12em; }
.nav { display: flex; gap: clamp(12px, 2.2vw, 32px); }
.nav a, .mobile-nav a { text-decoration: none; font-size: .9rem; font-weight: 700; }
.nav a:hover, .mobile-nav a:hover { text-decoration: underline; }
.mobile-nav { display: none; }
.hero { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(24px, 5vw, 72px); padding-block: clamp(32px, 7vw, 86px) 38px; }
.hero h1 { font-size: clamp(1.9rem, 4.15vw, 3.45rem); letter-spacing: -.04em; margin-block: 0 .34em; }
.eyebrow { font-size: .76rem; font-weight: 800; letter-spacing: .16em; color: var(--gold); margin-bottom: .9rem; }
.hero-photo { width: 100%; aspect-ratio: 3/2; object-fit: cover; border-radius: 36px 36px 36px 6px; }
.hero-copy { color: var(--muted); font-size: 1.04rem; max-width: 34em; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; align-items: center; min-height: 48px; padding: .55rem 1.15rem; border: 1px solid var(--green); border-radius: 8px; font-weight: 750; text-decoration: none; }
.button.primary { color: white; background: var(--green); }
.button:hover { box-shadow: 0 2px 10px #152d251e; }
.feature { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1fr); align-items: center; gap: clamp(18px, 4vw, 46px); padding: clamp(16px, 4vw, 42px); color: white; background: var(--green); border-radius: var(--radius); }
.feature img { border-radius: 10px; }
.feature a { color: white; }
.feature .eyebrow { color: #f4d6a4; }
.feature p:last-child { margin-bottom: 0; }
.home-section { margin-block: 56px; }
.home-section h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.card { display: block; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--white); color: var(--ink); text-decoration: none; transition: box-shadow .22s ease, transform .22s ease; }
.card:hover { transform: translateY(-3px); box-shadow: 0 10px 25px #152d2516; }
.card img { aspect-ratio: 3/2; width: 100%; object-fit: cover; }
.card-copy { padding: 16px 18px 20px; }
.card h3 { font-size: 1.03rem; margin: 0 0 .4em; }
.card p { color: var(--muted); font-size: .9rem; line-height: 1.65; margin: 0; }
.article { width: min(100% - 48px, 790px); margin-inline: auto; padding-block: 25px 58px; }
.crumb { font-size: .82rem; color: var(--muted); margin-bottom: 1.6rem; }
.article h1 { font-size: clamp(1.8rem, 4.4vw, 3rem); letter-spacing: -.025em; text-wrap: balance; }
.article .lead { color: var(--muted); font-size: 1.07rem; }
.date { color: var(--muted); font-size: .84rem; }
.cover { width: 100%; aspect-ratio: 3/2; border-radius: var(--radius); margin-block: 22px 30px; }
.article-body { font-size: 1.045rem; }
.article-body h2 { margin-top: 2.15em; border-bottom: 1px solid var(--line); padding-bottom: .55em; font-size: clamp(1.27rem, 3vw, 1.67rem); scroll-margin-top: 20px; }
.article-body li + li { margin-top: .36em; }
.toc, .sources, .related { padding: 18px 22px; background: var(--white); border: 1px solid var(--line); border-radius: 13px; margin-block: 24px; }
.toc h2, .sources h2, .related h2 { font-size: 1.12rem; }
.toc ol, .sources ul, .related ul { margin: 0; padding-left: 1.5em; }
.table-wrap { overflow-x: auto; margin-block: 1.5rem; }
table { width: 100%; border-collapse: collapse; background: var(--white); font-size: .96rem; }
caption { padding: .6rem; font-weight: 700; }
th, td { border: 1px solid var(--line); padding: .65rem .8rem; text-align: left; vertical-align: top; }
thead { background: var(--green); color: white; }
.photo { margin: 24px 0; max-width: 346px; }
.photo img { border-radius: 12px; }
.ad { margin-block: 28px; text-align: center; }
.ad-label { display: block; font-size: .71rem; color: var(--muted); }
.ad ins { display: block; width: 100%; }
.ad:has(ins[data-ad-status="unfilled"]) { display: none; }
.footer { border-top: 1px solid var(--line); padding: 28px 0; font-size: .88rem; }
.footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px; }
.footer p { margin: 0; }
@media (max-width: 820px) {
  .wrap, .article { width: min(100% - 36px, 790px); }
  .nav { display: none; }
  .mobile-nav { display: block; }
  .mobile-nav summary { list-style: none; cursor: pointer; display: grid; place-items: center; width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 8px; color: var(--green); }
  .mobile-nav summary::-webkit-details-marker { display: none; }
  .menu-lines { width: 19px; height: 2px; background: currentColor; box-shadow: 0 -6px, 0 6px; }
  .mobile-nav[open] .menu-lines { height: auto; background: none; box-shadow: none; text-align: center; }
  .mobile-nav[open] .menu-lines::after { content: "×"; font-size: 1.5rem; }
  .mobile-nav nav { position: absolute; top: calc(100% - 2px); right: 0; z-index: 4; display: grid; min-width: min(260px, 85vw); padding: 10px; border: 1px solid var(--line); border-radius: 12px; background: var(--white); box-shadow: 0 10px 28px #162d2526; }
  .mobile-nav nav a { padding: .55rem .8rem; }
  .hero { gap: 24px; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .head-inner { min-height: 68px; gap: 8px; }
  .brand { font-size: .87rem; gap: 8px; }
  .brand img { width: 36px; }
  .brand small { font-size: .63rem; }
  .hero, .feature, .cards { grid-template-columns: 1fr; }
  .hero { padding-top: 28px; }
  .hero-photo { border-radius: 20px 20px 20px 5px; }
  .home-section { margin-block: 36px; }
  .article { padding-block: 18px 38px; }
  .crumb { margin-bottom: 1.1rem; }
  .article-body { font-size: 1rem; }
  th, td { padding: .55rem; }
}
@media (prefers-reduced-motion: no-preference) {
  .hero > *, .feature, .article > header { animation: rise .65s ease-out both; }
  .hero-photo { animation-delay: .09s; }
  .card.in-view { animation: rise .46s ease-out both; }
  @keyframes rise { from { opacity: .12; translate: 0 12px; } to { opacity: 1; translate: 0 0; } }
}