:root{--bg:#0d0c10;--panel:#17151d;--line:#2b2733;--text:#f2eff6;--muted:#a59fb1;--yellow:#ffd21f;--purple:#8b5cf6}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--yellow)}
img{max-width:100%;display:block}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
header.top{border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:900;letter-spacing:.08em}
.brand img{width:34px;height:34px;border-radius:8px}
nav.lang a{color:var(--muted);text-decoration:none;font-size:13px;font-weight:700;margin-left:12px}
nav.lang a[aria-current]{color:var(--yellow)}
.hero{padding-top:72px;padding-bottom:40px}
.eyebrow{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--bg);background:var(--yellow);padding:4px 10px;border-radius:4px}
h1{font-size:clamp(40px,8vw,76px);line-height:1;margin:20px 0 16px;font-weight:900;letter-spacing:-.02em}
h1 em{font-style:normal;color:var(--yellow)}
.lead{font-size:clamp(17px,2.4vw,21px);color:var(--muted);max-width:620px;margin:0 0 28px}
.button{display:inline-block;background:var(--yellow);color:#111;font-weight:800;text-decoration:none;padding:13px 22px;border-radius:8px}
.button.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding-top:24px;padding-bottom:56px}
.cards img{border-radius:12px;border:1px solid var(--line);aspect-ratio:4/5;object-fit:cover;width:100%}
.how{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;padding-bottom:64px}
.how div{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px}
.how b{display:block;color:var(--yellow);font-size:13px;letter-spacing:.12em;margin-bottom:6px}
.how h3{margin:0 0 6px;font-size:20px}
.how p{margin:0;color:var(--muted)}
.doc{max-width:760px;padding:48px 16px 64px}
.doc h1{font-size:clamp(32px,6vw,48px)}
.doc h2{font-size:21px;margin:34px 0 8px}
.doc p,.doc li{color:#d8d3df}
.doc .updated{color:var(--muted);font-size:14px}
.box{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--yellow);border-radius:8px;padding:16px 18px;margin:20px 0}
table{width:100%;border-collapse:collapse;font-size:15px;margin:12px 0}
th,td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line);padding:9px 8px}
th{color:var(--muted);font-weight:700}
.table-wrap{overflow-x:auto}
footer{border-top:1px solid var(--line);color:var(--muted);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;padding:24px 16px}
footer a{color:var(--muted)}
footer nav{display:flex;flex-wrap:wrap;gap:8px 16px}
@media (max-width:720px){.cards{grid-template-columns:repeat(3,1fr);gap:8px}.how{grid-template-columns:1fr}.hero{padding-top:48px;padding-bottom:24px}}
.note{grid-column:1/-1;margin:4px 0 0;color:var(--muted);font-size:13px}
:lang(ja){font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic UI","Yu Gothic",Meiryo,sans-serif;line-break:strict}
h1:lang(ja){letter-spacing:0;line-height:1.15}