:root{
  --green:#496d5a;--green-dark:#304b3c;--accent:#b78349;--cream:#f7f4ec;
  --ink:#28312d;--muted:#68736d;--line:#dfe5df;--white:#fff;--shadow:0 12px 34px rgba(34,52,43,.09);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:#fff;line-height:1.8}
a{color:var(--green-dark);text-decoration-thickness:.08em;text-underline-offset:.18em}img{max-width:100%;height:auto}
.container{width:min(1120px,calc(100% - 32px));margin-inline:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:12px;top:12px;z-index:100;background:#fff;padding:8px 12px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(48,75,60,.97);box-shadow:0 2px 12px rgba(0,0,0,.1)}
.header-inner{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{text-decoration:none;color:#fff;display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border:1px solid rgba(255,255,255,.5);border-radius:50%;font-size:20px}.brand-text small{display:block;font-size:10px;font-weight:600;opacity:.78;letter-spacing:.12em}.brand-text strong{font-size:20px}
.global-navigation ul{display:flex;gap:20px;list-style:none;margin:0;padding:0}.global-navigation a{color:#fff;text-decoration:none;font-size:14px;font-weight:700}.global-navigation a:hover,.global-navigation a[aria-current=page]{text-decoration:underline}
.menu-button{display:none;background:none;border:1px solid rgba(255,255,255,.45);border-radius:8px;color:#fff;padding:8px 10px}.menu-button-lines::before{content:"☰";font-size:22px}
.hero{background:linear-gradient(135deg,#e9efe9 0%,#f7f3e7 54%,#efe2ce 100%);padding:74px 0 66px;border-bottom:1px solid var(--line)}.eyebrow{color:var(--accent);font-size:13px;letter-spacing:.14em;font-weight:800;text-transform:uppercase}.hero h1{font-size:clamp(34px,6vw,64px);line-height:1.25;margin:10px 0 18px}.hero p{font-size:clamp(17px,2vw,21px);max-width:720px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;padding:11px 18px;border-radius:999px;text-decoration:none;font-weight:800;background:var(--green);color:#fff}.button.secondary{background:#fff;color:var(--green-dark);border:1px solid var(--green)}
.section{padding:62px 0}.section.alt{background:var(--cream)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:24px}.section h2{margin:0;font-size:clamp(26px,3.8vw,38px)}.section-lead{max-width:760px;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow)}.card h3{margin-top:0}.card .meta{font-size:13px;color:var(--muted)}.card-link{text-decoration:none;display:block}.card-link:hover{transform:translateY(-2px)}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.feature{min-height:210px;border-radius:22px;padding:30px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.feature strong{display:block;color:var(--accent);font-size:13px;margin-bottom:8px}
.notice{padding:18px 20px;border:1px solid #e6d9c7;background:#fffaf2;border-radius:14px}
.page-hero{padding:48px 0 32px;background:var(--cream);border-bottom:1px solid var(--line)}.page-hero h1{margin:.2em 0;font-size:clamp(30px,5vw,48px)}.breadcrumbs{font-size:13px;color:var(--muted)}.prose{max-width:820px}.prose h2{margin-top:2.2em}.prose h3{margin-top:1.7em}.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{border:1px solid var(--line);border-radius:999px;padding:6px 10px;background:#fff;font-size:13px}
.controls{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}.controls input,.controls select{min-height:44px;border:1px solid #bbc8c0;border-radius:10px;padding:8px 12px;font:inherit}.controls input{flex:1;min-width:220px}
.empty{padding:28px;border:1px dashed #b9c4bd;border-radius:14px;text-align:center;color:var(--muted)}
.site-footer{background:var(--green-dark);color:#fff;margin-top:60px;padding:42px 0 22px}.footer-main{display:flex;justify-content:space-between;gap:32px}.site-footer a{color:#fff}.site-footer ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,auto);gap:8px 22px}.footer-bottom{border-top:1px solid rgba(255,255,255,.2);margin-top:28px;padding-top:18px;display:flex;justify-content:space-between;gap:20px}
.kofun-line{height:34px;margin-top:30px;opacity:.25;background:radial-gradient(ellipse at center,#496d5a 0 44%,transparent 46%) 0 13px/64px 28px repeat-x}
@media(max-width:820px){.menu-button{display:block}.global-navigation{display:none;position:absolute;top:74px;left:0;right:0;background:var(--green-dark);padding:8px 16px 18px}.global-navigation.is-open{display:block}.global-navigation ul{display:grid;gap:0}.global-navigation a{display:block;padding:12px 8px;border-bottom:1px solid rgba(255,255,255,.15)}.grid{grid-template-columns:repeat(2,1fr)}.feature-grid{grid-template-columns:1fr}.footer-main{display:grid}.site-footer ul{grid-template-columns:1fr}}
@media(max-width:560px){.container{width:min(100% - 24px,1120px)}.hero{padding:52px 0 46px}.section{padding:44px 0}.grid{grid-template-columns:repeat(2,1fr);gap:12px}.card{padding:17px;border-radius:14px}.section-head{display:block}.footer-bottom{display:block}}