:root {
  --ink: #1a1a1a;
  --muted: #6b6b6b;
  --paper: #f7f4ef;
  --white: #fff;
  --line: #e7e1d6;
  --green: #0b6b4f;
  --green-2: #085c43;
  --chip: #e8f3ee;
  --max: 1120px;
  --read: 720px;
  --serif: "Source Serif 4", "Noto Serif SC", Georgia, serif;
  --sans: "Noto Sans SC", "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.wrap-narrow { width: min(var(--read), calc(100% - 48px)); margin: 0 auto; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(247,244,239,.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-bar {
  display: flex; align-items: center; gap: 20px;
  min-height: 64px;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand img { border-radius: 8px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 18px; letter-spacing: .02em; }
.brand-text em { font-style: normal; font-size: 10px; color: var(--muted); letter-spacing: .04em; }
.nav-desktop { display: flex; gap: 18px; flex: 1; font-size: 14px; font-weight: 500; }
.nav-desktop a:hover, .nav-desktop a.on, .nav-scroll a.on, .tabbar a.on { color: var(--green); }
.search input, .search-mobile input {
  border: 1px solid var(--line); background: var(--white);
  border-radius: 999px; padding: 8px 14px; width: 160px; font: inherit;
}
.search.big input { width: 100%; max-width: 480px; padding: 12px 16px; }
.header-actions, .nav-scroll, .tabbar, .search-mobile, .hamburger { display: none; }
.hamburger { flex-direction: column; align-items: center; justify-content: center; }
.icon-btn {
  width: 40px; height: 40px; border: 0; background: transparent;
  border-radius: 10px; display: grid; place-items: center; color: var(--ink);
}
.hamburger span {
  display: block; width: 18px; height: 2px; background: var(--ink); margin: 3px 0; border-radius: 2px;
}
.nav-scroll {
  display: none;
  gap: 8px; overflow-x: auto; -webkit-overflow-scrolling: touch;
  padding: 0 0 10px; scrollbar-width: none;
}
.nav-scroll::-webkit-scrollbar { display: none; }
.nav-scroll a {
  flex: 0 0 auto; padding: 6px 12px; border-radius: 999px;
  background: var(--white); border: 1px solid var(--line); font-size: 13px; font-weight: 500;
}
.nav-scroll a.on { background: var(--chip); border-color: #cfe6db; }
.search-mobile { padding: 0 16px 10px; }
.search-mobile input { width: 100%; }
.drawer { position: fixed; inset: 0; z-index: 40; }
.drawer-mask { position: absolute; inset: 0; background: rgba(0,0,0,.35); }
.drawer-panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(82vw, 320px);
  background: var(--paper); padding: 16px 18px; box-shadow: -8px 0 24px rgba(0,0,0,.08);
}
.drawer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.drawer-nav a { display: block; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 16px; font-weight: 600; }
.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  display: none; grid-template-columns: repeat(5, 1fr);
  background: rgba(247,244,239,.96); border-top: 1px solid var(--line);
  padding: 6px 0 calc(6px + env(safe-area-inset-bottom));
}
.tabbar a { display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 11px; color: #555; }
.tab-ico { font-size: 16px; line-height: 1; }
body.drawer-open { overflow: hidden; }

.skip { position: absolute; left: -999px; top: 8px; background: #fff; padding: 8px; }
.skip:focus { left: 8px; z-index: 50; }
.hero { padding: 56px 0 24px; }
.kicker { color: var(--green); font-weight: 600; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; margin: 0 0 12px; }
.hero-feature h1, .page-head h1, .article-head h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.22;
  letter-spacing: -.02em;
  margin: 8px 0 16px;
}
.hero-feature p, .dek { font-size: 20px; color: #3d3d3d; margin: 0 0 12px; }
.meta { color: var(--muted); font-size: 13px; }
.chip {
  display: inline-block; background: var(--chip); color: var(--green);
  font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px;
}
.chip.sm { margin-bottom: 8px; }
.chip.pin { background: #fff3d6; color: #8a5a00; }

.split { display: grid; grid-template-columns: 1.5fr .9fr; gap: 56px; padding: 24px 0 64px; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; border-top: 1px solid var(--line); padding-top: 18px; }
.section-head.tight { margin-top: 36px; }
.section-head h2 { font-family: var(--serif); font-size: 22px; margin: 0; }
.section-head a { color: var(--green); font-size: 14px; font-weight: 600; }

.story-list { display: flex; flex-direction: column; }
.story { display: block; padding: 22px 0; border-bottom: 1px solid var(--line); }
.story h3 { font-family: var(--serif); font-size: 24px; line-height: 1.35; margin: 0 0 8px; }
.story p { margin: 0; color: #444; }
.story:hover h3 { text-decoration: underline; }

.industry-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.industry-cloud a {
  border: 1px solid var(--line); background: var(--white);
  padding: 6px 12px; border-radius: 999px; font-size: 13px;
}
.industry-cloud a:hover { border-color: var(--green); color: var(--green); }
.news-cats { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 0; }
.news-cats a {
  border: 1px solid var(--line); background: var(--white);
  padding: 8px 16px; border-radius: 999px; font-size: 14px;
}
.news-cats a:hover, .news-cats a.on {
  border-color: var(--green); color: var(--green); background: var(--chip);
}
.wiki-mini { list-style: none; padding: 0; margin: 0; }
.wiki-mini li { border-bottom: 1px solid var(--line); }
.wiki-mini a { display: block; padding: 10px 0; font-size: 14px; }
.wiki-mini a:hover { color: var(--green); }

.news-strip { padding-bottom: 64px; }
.news-grid, .card-grid, .dir-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
}
.news-card, .card, .dir-card {
  display: block; background: var(--white); border: 1px solid var(--line);
  border-radius: 12px; padding: 20px;
}
.news-card h3, .card h3, .dir-card h3 { font-family: var(--serif); font-size: 20px; margin: 8px 0; }
.news-card p, .card p, .dir-card p { color: var(--muted); margin: 0; font-size: 14px; }
.news-card:hover, .card:hover, .dir-card:hover { border-color: #cfc6b6; }

.cta {
  text-align: center; padding: 64px 24px 80px;
  border-top: 1px solid var(--line);
}
.cta h2 { font-family: var(--serif); font-size: 36px; margin: 0 0 12px; }
.btn {
  display: inline-block; background: var(--green); color: #fff !important;
  padding: 10px 18px; border-radius: 999px; font-weight: 600; font-size: 14px;
}
.btn:hover { background: var(--green-2); }

.page-head { padding: 48px 0 12px; }
.crumbs { font-size: 13px; color: var(--muted); margin-bottom: 10px; }
.crumbs a { color: var(--green); }
.article { padding: 40px 0 72px; }
.article-head { margin-bottom: 32px; }
.article-body { font-family: var(--serif); font-size: 20px; line-height: 1.8; }
.article-body h2 { font-size: 28px; margin: 40px 0 12px; line-height: 1.3; }
.article-body h3 { font-size: 22px; margin: 28px 0 8px; }
.article-body p { margin: 0 0 18px; }
.article-body ul, .article-body ol { margin: 0 0 18px; padding-left: 1.2em; }
.article-body li { margin: 6px 0; }
.article-body table { width: 100%; border-collapse: collapse; font-family: var(--sans); font-size: 15px; margin: 16px 0 28px; }
.article-body th, .article-body td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; background: var(--white); }
.article-body a { color: var(--green); text-decoration: underline; }
.sources { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); font-family: var(--sans); }
.sources h2 { font-family: var(--serif); }
.related { padding: 0 0 80px; }
.related h2 { font-family: var(--serif); }
.empty { color: var(--muted); padding: 24px 0; }
.wiki-index { padding-bottom: 80px; }
.wiki-cat { margin: 40px 0 8px; font-family: var(--serif); font-size: 26px; }
.wiki-count { color: var(--muted); font-size: 16px; font-family: var(--sans); font-weight: 400; }
.sitemap-page { padding-bottom: 80px; }
.sitemap-page h2 { font-family: var(--serif); font-size: 26px; margin: 36px 0 12px; }
.sitemap-page .dek a, .page-head a { color: var(--green); text-decoration: underline; }
.sitemap-cols {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 32px;
}
.sitemap-cols a {
  display: block; padding: 10px 0; border-bottom: 1px solid var(--line); color: #333;
}
.sitemap-cols a:hover { color: var(--green); }
.go-mark {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 52px; height: 32px; padding: 0 12px;
  border: 1px solid var(--green); border-radius: 999px;
  color: var(--green); font-weight: 700; letter-spacing: .12em; font-size: 13px;
  white-space: nowrap;
}
.news-card .go-mark { margin-top: 12px; }
.wiki-row { display: block; padding: 20px 0; border-bottom: 1px solid var(--line); }
.wiki-row h3 { margin: 0 0 6px; font-family: var(--serif); font-size: 22px; }
.wiki-row p { margin: 0; color: var(--muted); }
.news-list { padding-bottom: 80px; }
.news-row {
  display: flex; justify-content: space-between; gap: 24px; align-items: center;
  padding: 22px 0; border-bottom: 1px solid var(--line);
}
.news-row h3 { font-family: var(--serif); margin: 6px 0; font-size: 22px; }
.news-row p { margin: 0; color: var(--muted); }
.go { color: var(--green); font-weight: 600; white-space: nowrap; }
.pager { display: flex; gap: 8px; padding: 24px 0; }
.pager a { padding: 6px 10px; border: 1px solid var(--line); border-radius: 6px; }
.pager a.on { background: var(--ink); color: #fff; }

.site-footer { border-top: 1px solid var(--line); padding: 48px 0 28px; background: #f3efe7; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .7fr .7fr .7fr; gap: 32px; }
.footer-grid h4 { margin: 0 0 10px; }
.footer-grid a, .footer-grid p { display: block; color: #444; font-size: 14px; margin: 6px 0; }
.footer-brand { margin-bottom: 10px; }
.footer-copy {
  display: flex; justify-content: space-between; gap: 16px;
  margin-top: 32px; padding-top: 16px; border-top: 1px solid var(--line);
  color: var(--muted); font-size: 13px;
}
.footer-copy a { color: var(--muted); }
.nav a.on { color: var(--green); }
.hero-links { display: flex; gap: 12px; flex-wrap: wrap; margin: 16px 0 8px; }
.btn.ghost-btn, .ghost-btn { background: transparent; color: var(--green) !important; border: 1px solid var(--green); }
.takeaway { background: var(--chip); border-left: 4px solid var(--green); padding: 12px 16px; margin: 16px 0 0; font-size: 15px; }
.faq { padding: 24px 0 48px; }
.faq h2 { font-family: var(--serif); }
.faq dt { font-weight: 700; margin: 16px 0 6px; }
.faq dd { margin: 0; color: #333; }
.hero-feature h2 { font-family: var(--serif); font-size: clamp(28px, 4vw, 40px); line-height: 1.25; margin: 8px 0 12px; }
.wiki-row h2 { margin: 0 0 6px; font-family: var(--serif); font-size: 22px; }
.news-row h2 { font-family: var(--serif); margin: 6px 0; font-size: 22px; }
.site-footer h2 { font-size: 14px; margin: 0 0 10px; font-family: var(--sans); }

@media (max-width: 900px) {
  .header-bar { min-height: 56px; gap: 10px; }
  .nav-desktop, .search-desktop { display: none; }
  .header-actions, .hamburger { display: flex; }
  .search-mobile:not([hidden]) { display: block; }
  .header-actions { margin-left: auto; gap: 2px; }
  .nav-scroll { display: flex; width: min(var(--max), calc(100% - 32px)); margin: 0 auto; }
  .tabbar { display: grid; }
  .brand-text em { display: none; }
  .split, .news-grid, .card-grid, .dir-grid, .footer-grid, .sitemap-cols { grid-template-columns: 1fr; }
  .news-row { flex-direction: column; align-items: flex-start; }
  .site-footer { padding-bottom: 88px; }
  main { padding-bottom: 24px; }
  .hero { padding-top: 28px; }
  .hero-feature h1, .page-head h1, .article-head h1 { font-size: clamp(26px, 8vw, 36px); }
  .hero-feature p, .dek, .article-body { font-size: 17px; }
}