:root {
  color-scheme: light;
  --paper: #f7f3e8;
  --white: #fffdf6;
  --ink: #172c25;
  --pine: #102e28;
  --forest: #1b5946;
  --gold: #ebc775;
  --muted: #496056;
  --line: #dcd6c3;
  --radius: 18px;
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.85;
}
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); }
img, video { display: block; max-width: 100%; height: auto; }
a { color: var(--forest); text-underline-offset: .2em; }
a:hover { color: #674c10; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid #af750d; outline-offset: 4px; }
button { font: inherit; }
h1, h2, h3 { line-height: 1.35; margin: 0 0 .55em; text-wrap: pretty; }
h1 { font-size: clamp(2rem, 5.1vw, 4.5rem); letter-spacing: -.065em; font-weight: 900; }
h2 { font-size: clamp(1.35rem, 3vw, 2rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1.15em; }
ul, ol { padding-inline-start: 1.55em; }
li + li { margin-block-start: .36em; }
[id] { scroll-margin-top: 5rem; }
.shell { width: min(1180px, calc(100% - 56px)); margin-inline: auto; }
.reading { width: min(820px, calc(100% - 56px)); margin-inline: auto; }
.skip { position: fixed; top: -100px; left: 1rem; z-index: 20; padding: 8px 16px; background: var(--white); }
.skip:focus { top: 10px; }
.site-header { background: var(--pine); color: white; position: sticky; top: 0; z-index: 5; border-bottom: 1px solid #ffffff30; }
.topbar { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 20px; position: relative; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: #fffdf6; text-decoration: none; font-weight: 800; line-height: 1.35; }
.brand:hover { color: var(--gold); }
.brand img { border-radius: 9px; }
.site-nav { display: flex; align-items: center; flex-wrap: wrap; gap: .35em 1.2em; }
.site-nav a, .site-footer a { color: #f8f2df; text-decoration: none; font-size: .88rem; padding: 7px 0; }
.site-nav a:hover, .site-nav a[aria-current] { color: var(--gold); text-decoration: underline; }
.menu-toggle { display: none; color: var(--white); background: transparent; border: 1px solid #ffffff66; border-radius: 10px; min-width: 46px; min-height: 46px; padding: 8px; cursor: pointer; }
.menu-toggle span { display: block; width: 21px; height: 2px; background: currentColor; margin: 4px auto; }
.hero { background: #143931; color: #fbf6e6; }
.hero-grid { display: grid; grid-template-columns: .92fr 1.08fr; align-items: stretch; gap: 0; }
.hero-text { padding: clamp(32px, 7vw, 92px) clamp(20px, 4vw, 48px) clamp(38px, 7vw, 78px) 0; }
.hero-text p { color: #e2e8da; max-width: 32em; }
.hero-text h1 { font-size: clamp(1.9rem, 5.3vw, 3.45rem); }
.hero-text h1 strong { font-weight: inherit; white-space: nowrap; }
.hero-text h1 span { font-size: .49em; letter-spacing: .015em; display: block; margin-bottom: .22em; }
.hero-art { margin: 0; position: relative; }
.hero-art img { width: 100%; height: 100%; object-fit: cover; object-position: 43% center; }
.hero-art::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg,#14393131,transparent 35%); pointer-events: none; }
.eyebrow { color: #466456; font-size: .73rem; font-weight: 800; letter-spacing: .12em; margin-bottom: .55em; }
.hero .eyebrow, .site-footer .eyebrow { color: var(--gold); }
.actions, .jump { display: flex; gap: 10px; flex-wrap: wrap; margin: 1.25rem 0 0; }
.button { display: inline-flex; align-items: center; min-height: 46px; padding: 9px 17px; text-decoration: none; border: 1px solid currentColor; border-radius: 8px; font-size: .9rem; font-weight: 750; }
.button.primary { color: #233321; background: var(--gold); border-color: var(--gold); }
.hero .button:not(.primary) { color: #fbf6e6; }
.button:hover { box-shadow: 0 2px 0 currentColor; }
.section { padding-block: 45px; }
.section + .section { padding-top: 14px; }
.section-intro { max-width: 46em; color: var(--muted); }
.route-panels, .cards { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.cards { grid-template-columns: repeat(3,minmax(0,1fr)); }
.route-panel, .card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); overflow: hidden; }
.route-panel { padding: 24px; }
.route-panel h3 { font-size: 1.36rem; }
.route-panel p, .card p { color: var(--muted); font-size: .92rem; }
.route-panel a, .card a { font-weight: 750; }
.card img { aspect-ratio: 3/2; width: 100%; object-fit: contain; background: var(--pine); }
.card a { display: block; text-decoration: none; }
.card a:hover h3 { text-decoration: underline; }
.card-body { padding: 17px; }
.card-body p { margin: 0; }
.crumb { padding-top: 20px; color: var(--muted); font-size: .8rem; }
.crumb ol { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .4em .65em; margin: 0 0 17px; }
.crumb li { margin: 0; }
.crumb li + li::before { content: "›"; margin-right: .65em; }
.article-head { padding-top: 16px; }
.article-head h1 { font-size: clamp(1.9rem, 4.65vw, 3.3rem); }
.lead { color: var(--muted); font-size: 1.05rem; max-width: 47em; }
.cover { margin: 1.5rem 0; border-radius: var(--radius); overflow: hidden; background: var(--pine); }
.cover img { width: 100%; }
.cover.wide { max-width: 680px; }
.toc { padding: 15px 21px; background: var(--white); border: 1px solid var(--line); border-left: 4px solid var(--forest); border-radius: 9px; margin: 1.5em 0; }
.toc strong { font-size: .9rem; }
.toc ol { margin-block: .45em 0; }
.chapter { margin: 1.8rem 0 2.3rem; }
.chapter h2 { padding-bottom: .5em; border-bottom: 1px solid var(--line); }
.chapter h2 span { color: var(--forest); font-size: .66em; margin-right: .6em; }
.photo { margin: 1.4em 0; }
.photo img { border-radius: 12px; }
figcaption { color: var(--muted); font-size: .8rem; margin-top: .5em; }
.route-list { list-style: none; margin: 1rem 0; padding: 0; }
.route-list li { margin: 0; }
.route-list a { display: grid; grid-template-columns: 2.7em minmax(0,1fr) 1.2em; align-items: center; gap: .8em; text-decoration: none; padding: .8em .2em; border-bottom: 1px solid var(--line); }
.route-list a:hover strong { text-decoration: underline; }
.step { color: #385d48; font-size: .86em; font-weight: 850; font-variant-numeric: tabular-nums; }
.route-list small { display: block; color: var(--muted); font-size: .83em; line-height: 1.55; }
.pager { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .65em; margin: 1.6em 0 2.6em; }
.pager a { padding: .7em .85em; border: 1px solid var(--line); background: var(--white); border-radius: 9px; font-weight: 750; text-decoration: none; }
.pager a:hover { text-decoration: underline; }
.video-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 22px; }
.video-grid h3 { font-size: 1rem; }
.video-card { margin: 0 0 1.3em; }
.video-card video { width: 100%; aspect-ratio: 16/9; object-fit: contain; background: #101b18; border-radius: 11px; }
.video-note { font-size: .84rem; color: var(--muted); }
.ad { margin: 1.8rem auto; width: min(100%, 970px); text-align: center; }
.ad ins { display: block; }
.ad:has(ins[data-ad-status="unfilled"]) { display: none; }
.site-footer { background: var(--pine); color: #dce6d9; margin-top: 1rem; padding: 33px 0; }
.site-footer p { font-size: .86rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: .5em 1.3em; }
.appear { animation: appear .6s ease-out both; }
@keyframes appear { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) { .appear { animation: none; } }
@media (max-width: 900px) {
  .shell, .reading { width: calc(100% - 36px); }
  .topbar { flex-wrap: wrap; gap: 0; min-height: 60px; }
  .brand { padding-block: 10px; }
  .js .menu-toggle { display: block; }
  .site-nav { width: 100%; padding-bottom: 8px; }
  .js .site-nav { display: none; position: absolute; top: 100%; left: -18px; width: calc(100% + 36px); padding: 6px 18px 10px; background: var(--pine); box-shadow: 0 10px 18px #0004; }
  .js .site-nav[data-open="true"] { display: grid; }
  .js .site-nav a { padding: 9px; border-bottom: 1px solid #ffffff29; }
  .hero-grid { width: 100%; grid-template-columns: minmax(0,1fr); }
  .hero-text { padding: 35px 18px 25px; }
  .hero-text h1 { font-size: clamp(1.9rem, 7vw, 3.45rem); }
  .hero-art img { aspect-ratio: 16/9; object-position: center 62%; }
  .hero-art::after { background: linear-gradient(#14393124,transparent 24%); }
  .cards { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
  .route-panels { gap: 12px; }
  .route-panel, .card-body { padding: 14px; }
  .section { padding-block: 31px; }
}
@media (max-width: 480px) {
  .route-panels, .video-grid { grid-template-columns: minmax(0,1fr); }
  .cards { grid-template-columns: minmax(0,1fr); }
  .pager { grid-template-columns: minmax(0,1fr); }
  .route-list a { gap: .5em; grid-template-columns: 1.75em minmax(0,1fr) 1em; }
}