:root {
  --bg: #f3eee4;
  --bg-deep: #e7dfcf;
  --paper: #fffdf7;
  --ink: #1a2420;
  --ink-2: #3d4a44;
  --muted: #6b736e;
  --line: #ddd4c4;
  --forest: #1b4332;
  --forest-2: #2d6a4f;
  --moss: #40916c;
  --gold: #e0b33a;
  --gold-2: #c9971a;
  --clay: #c46b4a;
  --blush: #f3e6d8;
  --chip: #e8f0ea;
  --wrap: 1120px;
  --radius: 18px;
  --sans: "Hiragino Maru Gothic ProN", "Yu Gothic Medium", "Yu Gothic", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.8;
  font-size: 16.5px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--forest-2); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--forest); }
img { max-width: 100%; height: auto; }
.wrap { width: min(var(--wrap), calc(100% - 32px)); margin: 0 auto; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

/* Header — dark forest bar, unlike e510's light paper header */
.site-header {
  background: var(--forest);
  color: #f6f1e4;
  position: sticky; top: 0; z-index: 40;
  box-shadow: 0 1px 0 rgba(0,0,0,.15);
}
.header-in {
  display: flex; align-items: center; gap: 18px;
  min-height: 64px;
}
.wordmark { display: flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; }
.wordmark .mark {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--gold); color: var(--forest);
  display: grid; place-items: center;
  font-weight: 800; font-size: 18px; line-height: 1;
}
.wordmark .name { display: flex; flex-direction: column; line-height: 1.15; }
.wordmark .name b { font-size: 16px; letter-spacing: .02em; }
.wordmark .name small { font-size: 11px; color: #d7e3d8; font-weight: 400; margin-top: 3px; }
.nav { display: flex; gap: 16px; margin-left: 12px; }
.nav a { color: #e8f0ea; text-decoration: none; font-size: 14px; }
.nav a:hover { color: var(--gold); }
.tools { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.search-btn {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.08); color: #f6f1e4;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 999px; padding: 7px 14px; text-decoration: none; font-size: 13px;
}
.search-btn:hover { background: rgba(255,255,255,.16); color: #fff; }
.menu-btn {
  display: none; background: transparent; color: #f6f1e4;
  border: 1px solid rgba(255,255,255,.2); border-radius: 10px;
  width: 40px; height: 40px; cursor: pointer;
}
.mobile-nav { display: none; background: #143528; padding: 8px 16px 16px; }
.mobile-nav a { display: block; color: #e8f0ea; text-decoration: none; padding: 10px 4px; border-top: 1px solid rgba(255,255,255,.08); }
@media (max-width: 800px) {
  .nav { display: none; }
  .menu-btn { display: inline-grid; place-items: center; }
  .mobile-nav.open { display: block; }
  .search-btn span { display: none; }
}

/* Hero */
.hero {
  padding: 48px 0 28px;
  background:
    radial-gradient(circle at 90% 10%, rgba(224,179,58,.28), transparent 32%),
    radial-gradient(circle at 0% 80%, rgba(64,145,108,.16), transparent 28%),
    var(--bg);
}
.hero .kicker {
  display: inline-block; font-size: 12px; letter-spacing: .16em;
  color: var(--forest-2); font-weight: 700; margin: 0 0 10px;
}
.hero h1 {
  font-size: clamp(30px, 5.4vw, 48px);
  line-height: 1.25; margin: 0 0 14px; font-weight: 800;
  letter-spacing: -0.02em;
}
.hero .lead { max-width: 640px; color: var(--ink-2); margin: 0 0 22px; font-size: 17px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 20px; border-radius: 999px; text-decoration: none;
  font-size: 14px; font-weight: 700; border: 1px solid transparent;
}
.btn-gold { background: var(--gold); color: var(--forest); }
.btn-gold:hover { background: var(--gold-2); color: var(--forest); }
.btn-ghost { background: transparent; color: var(--forest); border-color: var(--forest-2); }
.btn-ghost:hover { background: var(--forest); color: #fff; }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 28px 0 8px;
}
.stats div {
  background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px;
}
.stats b { display: block; font-size: 28px; color: var(--forest); line-height: 1.1; }
.stats span { color: var(--muted); font-size: 12px; }
@media (max-width: 700px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* Sections */
.section { padding: 36px 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.section-title { font-size: clamp(22px, 3vw, 28px); margin: 0; letter-spacing: -0.02em; }
.section-head a { font-size: 14px; }

/* Situation / hub cards — wide story cards, not e510 category tiles */
.sit-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px;
}
@media (max-width: 760px) { .sit-grid { grid-template-columns: 1fr; } }
.sit-card {
  display: grid; grid-template-columns: 8px 1fr; background: var(--paper);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  text-decoration: none; color: inherit; min-height: 128px;
}
.sit-card:hover { border-color: var(--forest-2); box-shadow: 0 6px 20px rgba(27,67,50,.08); }
.sit-card .bar { background: var(--forest-2); }
.sit-card:nth-child(3n) .bar { background: var(--gold-2); }
.sit-card:nth-child(3n+2) .bar { background: var(--clay); }
.sit-card .body { padding: 16px 18px 18px; }
.sit-card .meta { font-size: 12px; color: var(--muted); margin: 0 0 6px; }
.sit-card h3 { margin: 0 0 6px; font-size: 20px; }
.sit-card p { margin: 0; color: var(--ink-2); font-size: 14px; line-height: 1.7; }

/* Product cards */
.item-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px;
}
.item-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: 16px;
  overflow: hidden; text-decoration: none; color: inherit; display: flex; flex-direction: column;
}
.item-card:hover { border-color: var(--forest-2); }
.item-card figure { margin: 0; aspect-ratio: 1 / 1; background: var(--bg-deep); overflow: hidden; }
.item-card img { width: 100%; height: 100%; object-fit: cover; display: block; }
.item-card .pad { padding: 12px 14px 16px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.item-card .meta { font-size: 12px; color: var(--muted); }
.item-card h3 { margin: 0; font-size: 16px; line-height: 1.45; }
.item-card .why { color: var(--ink-2); font-size: 13px; line-height: 1.65; margin: 4px 0 0; }
.item-card .price { margin-top: auto; padding-top: 8px; font-weight: 800; color: var(--forest); }

.ph {
  width: 100%; height: 100%; min-height: 160px;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 16px; color: #f6f1e4;
  background:
    linear-gradient(160deg, var(--forest) 0%, #245c43 58%, #3d6b3a 100%);
}
.ph small { opacity: .8; font-size: 11px; letter-spacing: .08em; }
.ph b { font-size: 18px; line-height: 1.35; margin-top: 6px; }
.item-card .ph { min-height: 100%; }

/* Hub article */
.crumbs { font-size: 13px; color: var(--muted); padding: 18px 0 0; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--forest); }
.hub-hero { padding: 12px 0 8px; }
.hub-hero h1 { font-size: clamp(28px, 4.4vw, 42px); margin: 8px 0 12px; line-height: 1.25; }
.answer {
  background: #eaf3ec; border-left: 5px solid var(--gold);
  padding: 14px 18px; border-radius: 0 14px 14px 0;
  font-size: 16.5px; line-height: 1.85; margin: 0 0 20px;
}
.prose { max-width: 720px; }
.prose p { margin: 0 0 1em; color: var(--ink-2); }
.prose h2 { font-size: 22px; margin: 1.6em 0 .5em; }
.prose h3 { font-size: 18px; margin: 1.3em 0 .4em; }
.tips { list-style: none; padding: 0; margin: 0 0 20px; }
.tips li {
  background: var(--paper); border: 1px solid var(--line); border-radius: 14px;
  padding: 14px 16px; margin: 0 0 10px;
}
.tips li strong { display: block; margin-bottom: 4px; }

.faq details {
  background: var(--paper); border: 1px solid var(--line); border-radius: 12px;
  padding: 4px 16px; margin: 0 0 8px;
}
.faq summary { cursor: pointer; font-weight: 700; padding: 10px 0; }
.faq details p { margin: 0 0 12px; color: var(--ink-2); }

/* Product page — stacked story, not e510 two-column sticky */
.item-page { padding-bottom: 48px; }
.item-page .kicker { font-size: 13px; color: var(--muted); margin: 10px 0 0; }
.item-page h1 { font-size: clamp(26px, 4vw, 38px); margin: 6px 0 10px; line-height: 1.3; }
.price-row {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px;
  padding: 12px 0; border-top: 2px solid var(--forest); border-bottom: 1px solid var(--line);
  margin-bottom: 16px;
}
.price-row .big { font-size: 34px; font-weight: 800; color: var(--forest); }
.price-row .note { color: var(--muted); font-size: 13px; }
.hub-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; }
.chip {
  display: inline-block; background: var(--chip); color: var(--forest);
  border-radius: 999px; padding: 4px 12px; font-size: 13px; text-decoration: none;
  font-weight: 700;
}
.chip:hover { background: var(--forest); color: #fff; }
.media-block { max-width: 420px; margin: 0 0 22px; }
.media-block figure {
  margin: 0; border-radius: 20px; overflow: hidden; background: var(--bg-deep);
  aspect-ratio: 1 / 1; border: 1px solid var(--line);
}
.media-block img { width: 100%; height: 100%; object-fit: cover; }
.facts-dl { margin: 20px 0; border-top: 1px solid var(--line); }
.facts-dl div {
  display: grid; grid-template-columns: 8em 1fr; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px;
}
.facts-dl dt { color: var(--muted); }
.facts-dl dd { margin: 0; }
.warn {
  background: #fbf1ea; border: 1px solid #edd4c4; border-radius: 14px; padding: 14px 16px;
}
.warn h2 { margin: 0 0 8px; font-size: 16px; }
.thin-note {
  background: #f7f1dc; border-radius: 12px; padding: 12px 14px; font-size: 14px; color: var(--ink-2);
}

/* Store / lists */
.pager { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0; }
.pager a, .pager span {
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line);
  text-decoration: none; color: var(--ink); font-size: 14px; background: var(--paper);
}
.pager .on { background: var(--forest); color: #fff; border-color: var(--forest); }

/* Search */
.search-box {
  width: 100%; padding: 14px 16px; border-radius: 14px; border: 1px solid var(--line);
  font: inherit; background: var(--paper);
}
.search-box:focus { outline: 2px solid var(--gold); border-color: var(--gold-2); }
.search-tools { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 18px; }
.search-tools button {
  border: 1px solid var(--line); background: var(--paper); border-radius: 999px;
  padding: 6px 12px; cursor: pointer; font: inherit; font-size: 13px;
}
.search-tools button.on { background: var(--forest); color: #fff; border-color: var(--forest); }
#search-status { color: var(--muted); font-size: 13px; margin: 0 0 12px; }

/* Footer */
.site-footer {
  background: #13261d; color: #d7e3d8; padding: 40px 0 24px; margin-top: 24px;
}
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 24px; }
.site-footer a { color: #e8f0ea; text-decoration: none; }
.site-footer a:hover { color: var(--gold); }
.site-footer h2 { font-size: 13px; letter-spacing: .12em; color: var(--gold); margin: 0 0 10px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 0 0 6px; font-size: 14px; }
.site-footer .note { color: #9aa89e; font-size: 12px; line-height: 1.7; }
.site-footer .copy { margin: 28px 0 0; color: #9aa89e; font-size: 12px; }
@media (max-width: 800px) {
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .foot-grid { grid-template-columns: 1fr; }
}

.store-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; padding: 0; list-style: none; }
.store-list a {
  display: block; background: var(--paper); border: 1px solid var(--line);
  border-radius: 14px; padding: 16px 18px; text-decoration: none; color: inherit;
}
.store-list a:hover { border-color: var(--forest-2); }
.store-list b { display: block; font-size: 18px; }
.store-list span { color: var(--muted); font-size: 13px; }