:root{
    --ink:#14181f;--muted:#5f6b7a;--line:#e7ebf0;--bg:#fff;--bg-soft:#f5f7fa;
    --brand:#ff5a3c;--brand-ink:#e8442a;--teal:#0e8f6e;--teal-soft:rgba(14,143,110,.1);
    --navy:#101827;--gold:#c19a3e;
    --shadow:0 4px 18px rgba(16,24,39,.08);--shadow-lg:0 20px 55px rgba(16,24,39,.18);
    --maxw:900px;
    --font:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Noto Sans JP",Roboto,Helvetica,Arial,sans-serif;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased}
  a{color:inherit}
  h1,h2,h3,p,ul,ol{margin:0}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
  header.site{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
  .topbar{display:flex;align-items:center;gap:14px;min-height:60px;flex-wrap:wrap}
  .brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:18px;text-decoration:none}
  .brand .mark{width:28px;height:28px;object-fit:contain}
  .langs{margin-left:auto;display:flex;gap:6px;align-items:center;flex-wrap:wrap}
  .langs a{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700;color:var(--muted);text-decoration:none}
  .langs a:hover{border-color:#cdd6e0;color:var(--ink)}
  .langs a.on{background:var(--navy);border-color:var(--navy);color:#fff}
  .langs a.home{color:var(--brand-ink);border-color:rgba(232,68,42,.35)}
  .hero{background:linear-gradient(180deg,#fff 0%,#eef4f2 100%);border-bottom:1px solid var(--line)}
  .hero .wrap{padding:48px 22px 36px}
  .kicker{display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 13px;font-size:12.5px;font-weight:700;color:var(--teal);margin-bottom:14px;box-shadow:var(--shadow)}
  .hero h1{font-size:clamp(26px,4vw,36px);margin:0 0 12px;font-weight:800;letter-spacing:-.4px;line-height:1.25;max-width:18em}
  .hero .lede{color:var(--muted);font-size:16.5px;margin:0;max-width:40em}
  .trust-chips{display:flex;gap:9px;flex-wrap:wrap;margin-top:22px}
  .tchip{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 13px;font-size:13px;font-weight:600;box-shadow:var(--shadow)}
  .tchip.green{color:var(--teal)}
  .toc{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}
  .toc a{text-decoration:none;background:var(--navy);color:#fff;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}
  .toc a:hover{background:#243044}
  section.block{padding:46px 0}
  section.soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .sec-head{margin-bottom:22px}
  .sec-head h2{margin:0 0 6px;font-size:clamp(21px,3vw,28px);font-weight:800;letter-spacing:-.3px}
  .sec-head p{margin:0;color:var(--muted);font-size:15px}
  .prose{max-width:68ch;color:var(--muted);font-size:16px}
  .prose p{margin:0 0 14px}
  .prose p:last-child{margin:0}
  .prose b,.prose strong{color:var(--ink)}
  .note{background:#fff;border:1px solid var(--line);border-left:4px solid var(--teal);border-radius:12px;padding:14px 16px;color:var(--muted);font-size:14.5px;max-width:68ch;margin-top:16px}
  .note b{color:var(--ink)}
  .warn{background:#fff7f5;border:1px solid rgba(232,68,42,.25);border-radius:14px;padding:16px 18px;max-width:68ch}
  .warn b{color:var(--ink)}
  .warn p{margin:8px 0 0;color:var(--muted);font-size:14.5px}
  .grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px;max-width:760px}
  .card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 18px;box-shadow:var(--shadow)}
  .card h3{margin:0 0 6px;font-size:16px;font-weight:800}
  .card p{margin:0;color:var(--muted);font-size:14px}
  .steps{list-style:none;margin:0;padding:0;max-width:760px}
  .step{display:grid;grid-template-columns:44px 1fr;gap:16px;position:relative;padding-bottom:22px}
  .step:not(:last-child)::before{content:"";position:absolute;left:21px;top:48px;bottom:0;width:2px;background:var(--line)}
  .s-num{width:44px;height:44px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;font-size:18px;display:grid;place-items:center;position:relative;z-index:1}
  .s-card{min-width:0;border:1px solid var(--line);border-radius:16px;padding:16px 18px;background:#fff;box-shadow:var(--shadow)}
  .s-card h3{margin:0 0 6px;font-size:16.5px;font-weight:800}
  .s-card p{margin:0 0 8px;color:var(--muted);font-size:14.5px}
  .s-card p:last-child{margin:0}
  .s-card ul{margin:8px 0 0;padding:0 0 0 1.1em;color:var(--muted);font-size:14.5px}
  .s-card li{margin:0 0 4px}
  .rows{max-width:760px;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff}
  .row{display:grid;grid-template-columns:148px 1fr;gap:14px;padding:14px 16px;border-top:1px solid var(--line);font-size:14.5px}
  .row:first-child{border-top:0}
  .row b{font-size:14.5px}
  .row span{color:var(--muted)}
  .script{background:var(--navy);color:#e8edf5;border-radius:16px;padding:18px 18px 16px;max-width:760px;font-size:14.5px;line-height:1.75;white-space:pre-wrap}
  .script .cap{display:block;color:#9eb0c8;font-size:12px;font-weight:700;letter-spacing:.04em;margin-bottom:8px}
  .faqs{max-width:760px;display:flex;flex-direction:column;gap:10px}
  .faq{border:1px solid var(--line);border-radius:14px;background:#fff}
  .faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:10px;padding:15px 18px;font-weight:700;font-size:15px}
  .faq summary::-webkit-details-marker{display:none}
  .faq summary .chev{margin-left:auto;color:var(--muted);transition:.2s;flex:none}
  .faq[open] summary .chev{transform:rotate(180deg)}
  .faq .fa{padding:0 18px 16px;color:var(--muted);font-size:14.5px;line-height:1.75;max-width:68ch}
  .backcta{display:inline-flex;align-items:center;gap:8px;background:var(--brand);color:#fff;text-decoration:none;border-radius:999px;padding:12px 22px;font-size:15px;font-weight:800;margin-top:18px}
  .backcta:hover{background:var(--brand-ink)}
  .more{margin-top:14px;font-size:14.5px;color:var(--muted)}
  .more a{color:var(--brand-ink);font-weight:800;text-decoration:none}
  footer.site{background:#0f141c;color:#aab5c2;padding:40px 0 60px;margin-top:8px}
  footer .brand{color:#fff;margin-bottom:12px}
  .age-tag{display:inline-flex;align-items:center;gap:6px;background:rgba(255,90,60,.14);color:#ff9280;border:1px solid rgba(255,90,60,.35);padding:4px 10px;border-radius:8px;font-size:12px;font-weight:800;margin-bottom:12px}
  footer .links{display:flex;gap:16px;flex-wrap:wrap}
  footer .links a{color:#95a2b2;font-size:13.5px;font-weight:600;text-decoration:none}
  footer .links a:hover{color:#fff}
  .agegate{position:fixed;inset:0;z-index:200;background:rgba(9,12,18,.92);display:grid;place-items:center;padding:20px}
  .agegate .box{background:#fff;border-radius:20px;max-width:430px;width:100%;padding:32px 28px;text-align:center;box-shadow:var(--shadow-lg)}
  .hidden{display:none!important}
  @media (max-width:700px){
    .grid2{grid-template-columns:1fr}
    .row{grid-template-columns:1fr;gap:4px}
    .hero .wrap{padding:34px 22px 28px}
    .langs{margin-left:0;width:100%}
  }
  .brand{font-family:"Zen Kaku Gothic New",-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Noto Sans JP",Roboto,Helvetica,Arial,sans-serif;font-weight:900;letter-spacing:-.025em}
.genres{display:flex;gap:6px;flex-wrap:wrap;width:100%;padding-bottom:8px}
.genres a{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 11px;font-size:13px;font-weight:700;color:var(--muted);text-decoration:none}
.genres a:hover{border-color:#cdd6e0;color:var(--ink)}
.genres a.on{background:var(--navy);border-color:var(--navy);color:#fff}
a.kicker{text-decoration:none}
.cat{border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow);overflow:hidden;max-width:760px;margin:0 0 14px}
.cathead{padding:16px 18px 12px;border-bottom:1px solid var(--line);background:var(--bg-soft)}
.cathead h2{margin:0 0 4px;font-size:20px}
.cathead p{margin:0;color:var(--muted);font-size:14px}
.cat-item{display:grid;grid-template-columns:112px 1fr auto;gap:12px;align-items:center;padding:14px 18px;border-top:1px solid var(--line)}
.cat-item:first-of-type{border-top:0}
.cat-item b{font-size:15px}
.cat-item p{margin:0;color:var(--muted);font-size:14px}
.cat-item a.go{text-decoration:none;background:var(--navy);color:#fff;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:800;white-space:nowrap}
.pick{max-width:760px}
.pick li{border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:0 0 8px;background:#fff;color:var(--muted);font-size:14.5px}
.pick b{color:var(--ink)}
@media (max-width:700px){
  .cat-item{grid-template-columns:1fr;gap:8px}
}