:root {
  color-scheme: light;
  --ink: #172d2a;
  --muted: #45615a;
  --pine: #154d41;
  --deep: #103b33;
  --paper: #fbfaf6;
  --line: #d9e3da;
  --mint: #e7efe6;
  --gutter: clamp(18px, 5vw, 62px);
  --sans: "Hiragino Sans", "Yu Gothic Medium", "Yu Gothic", Meiryo, "Noto Sans CJK JP", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; font: 400 1.0625rem/1.85 var(--sans); color: var(--ink); background: var(--paper); }
a { color: var(--pine); text-underline-offset: .24em; }
a:focus-visible, summary:focus-visible { outline: 3px solid #b36c25; outline-offset: 4px; border-radius: 4px; }
h1, h2, h3, p, figure { margin: 0; }
h1, h2, h3 { line-height: 1.35; overflow-wrap: anywhere; }
h1 { font-size: clamp(1.9rem, 4.5vw, 3.65rem); letter-spacing: .015em; }
h2 { font-size: clamp(1.4rem, 3vw, 2.2rem); }
p, li { overflow-wrap: anywhere; }
img { display: block; max-width: 100%; height: auto; }
.wrap { width: min(100% - 2 * var(--gutter), 1200px); margin-inline: auto; }
.skip { position: fixed; z-index: 10; left: 1rem; top: -6rem; padding: .6rem 1rem; background: white; }
.skip:focus { top: .5rem; }
.site-header { position: relative; z-index: 2; border-bottom: 1px solid var(--line); background: var(--paper); }
.header-inner { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .65rem; text-decoration: none; color: var(--ink); font-weight: 800; font-size: clamp(1rem, 3.5vw, 1.28rem); }
.brand img { border-radius: 10px; }
.desktop-nav, .mobile-nav nav { display: flex; align-items: center; gap: clamp(12px, 2.5vw, 32px); }
.desktop-nav a, .mobile-nav nav a { font-size: .94rem; font-weight: 700; text-decoration: none; padding: .35rem 0; }
.desktop-nav a:hover, .mobile-nav nav a:hover, nav a[aria-current] { text-decoration: underline; }
.mobile-nav { display: none; }
.crumbs { padding-block: 1rem; color: var(--muted); font-size: .86rem; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: .35rem; margin: 0; padding: 0; list-style: none; }
.crumbs li + li::before { content: "›"; margin-inline: .1rem .45rem; }
.eyebrow { color: var(--pine); font-size: .78rem; font-weight: 800; letter-spacing: .17em; }
.home-hero { padding-block: clamp(38px, 7vw, 96px); background: linear-gradient(130deg, #e7efe6, #f4efe4 78%); }
.hero-grid { display: grid; grid-template-columns: 1fr 1.14fr; align-items: center; gap: clamp(22px, 5vw, 76px); }
.home-hero h1 { margin-block: .55rem .85rem; font-size: clamp(1.75rem, 4.05vw, 3.65rem); }
.home-hero p:not(.eyebrow), .lede { color: var(--muted); line-height: 1.85; }
.hero-picture { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 22px; box-shadow: 0 16px 50px #183b3220; }
.actions { display: flex; gap: .7rem; flex-wrap: wrap; margin-top: 1.45rem; }
.btn { padding: .56rem 1rem; border-radius: 999px; border: 1px solid var(--pine); color: var(--pine); font-size: .91rem; font-weight: 700; text-decoration: none; }
.btn.primary { background: var(--pine); color: white; }
.btn:hover { box-shadow: 0 0 0 2px #1c604235; }
.home-intro { margin-block: 3.25rem; padding: clamp(22px, 4vw, 44px); border: 1px solid var(--line); border-radius: 20px; background: white; }
.home-intro h2 { margin-bottom: .7rem; }
.home-intro p { max-width: 55em; }
.page-header { margin: .7rem auto 2rem; max-width: 870px; }
.page-header h1 { margin-block: .45rem .8rem; }
.page-header .lede { font-size: clamp(1.04rem, 2vw, 1.25rem); max-width: 39em; }
.cover { width: 100%; border-radius: 18px; margin-top: 1.6rem; }
.article { max-width: 870px; margin-inline: auto; }
.prose { max-width: 730px; margin-inline: auto; }
.prose h2 { margin-top: 2.15rem; padding-left: .75rem; border-left: 4px solid #6a907b; }
.prose p { margin-block: .95rem; }
.prose a { font-weight: 650; }
.source-list { margin: 2.5rem auto; padding: 1.2rem clamp(18px, 4vw, 30px); background: var(--mint); border-radius: 15px; font-size: .95rem; max-width: 730px; }
.source-list h2 { font-size: 1.18rem; }
.source-list ul { margin: .55rem 0 0; padding-left: 1.3rem; }
.product-photo { margin: 1.6rem auto 2.1rem; padding: 1.1rem; max-width: 570px; background: white; border: 1px solid var(--line); border-radius: 15px; text-align: center; }
.product-photo img { margin-inline: auto; border-radius: 8px; }
.product-photo figcaption { color: var(--muted); font-size: .85rem; margin-top: .65rem; }
.section { margin-block: clamp(35px, 7vw, 70px); }
.section-head { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: .6rem 1rem; margin-bottom: 1.2rem; }
.section-head h2 { margin-top: .2rem; }
.section-head a { font-weight: 700; font-size: .93rem; }
.cards { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 1rem; }
.card { display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: #fff; color: var(--ink); text-decoration: none; transition: box-shadow .2s, transform .2s; }
.card:hover { transform: translateY(-3px); box-shadow: 0 9px 20px #24433614; }
.card img { width: 100%; aspect-ratio: 3 / 2; object-fit: contain; background: #eeeee5; }
.card-body { display: grid; gap: .35rem; padding: 1rem 1.1rem 1.25rem; }
.card-title { font-size: 1.08rem; font-weight: 800; line-height: 1.5; }
.card-description { color: var(--muted); font-size: .93rem; line-height: 1.65; }
.link-list { padding-left: 1.3rem; margin-block: .65rem 1.5rem; }
.link-list li + li { margin-top: .3rem; }
.ad { margin: 2.4rem auto; max-width: 870px; text-align: center; color: var(--muted); }
.ad > span { display: block; font-size: .72rem; }
.ad ins { display: block; }
.ad:has(ins[data-ad-status="unfilled"]) { display: none; }
.site-footer { margin-top: 4rem; padding-block: 2.5rem; background: var(--deep); color: #e9f1e9; }
.footer-inner { display: flex; align-items: flex-start; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; }
.site-footer a { color: #e9f1e9; }
.site-footer small { display: block; color: #d2e1d7; }
.motion { animation: arrive .63s ease-out both; }
@keyframes arrive { from { opacity: .16; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@media (max-width: 820px) {
  .desktop-nav { display: none; }
  .header-inner { min-height: 64px; }
  .mobile-nav { display: block; }
  .mobile-nav summary { display: grid; place-items: center; width: 48px; height: 44px; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; list-style: none; color: var(--pine); }
  .mobile-nav summary::-webkit-details-marker { display: none; }
  .mobile-nav summary svg { width: 23px; }
  .mobile-nav nav { position: absolute; top: 100%; inset-inline: 0; padding: .75rem var(--gutter) 1.15rem; align-items: stretch; flex-direction: column; gap: .15rem; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 10px 20px #153a291c; }
  .mobile-nav nav a { min-height: 44px; padding: .55rem .3rem; }
  .hero-grid { grid-template-columns: 1fr; }
  .home-hero h1 { font-size: clamp(1.75rem, 7vw, 3.65rem); }
  .cards { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 520px) {
  .cards { grid-template-columns: 1fr; }
  .hero-picture, .cover { border-radius: 13px; }
  .page-header { margin-bottom: 1.5rem; }
}
@media (prefers-reduced-motion: reduce) {
  .motion { animation: none; }
  .card { transition: none; }
  .card:hover { transform: none; }
}