:root{--bg:#f4f8fc;--card:#fff;--ink:#14243a;--mut:#4f5f74;--line:#cfdcec;--blue:#1153a1;--tint:#e8f1fa}
@media (prefers-color-scheme:dark){:root{--bg:#0d1726;--card:#14233a;--ink:#e8eff8;--mut:#a9bbd0;--line:#2c4766;--blue:#7dbbf5;--tint:#1b3150}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
.wrap{max-width:820px;margin:0 auto;padding:0 16px}
header{background:#0f4a92;color:#fff;padding:12px 0}header .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:center}
header a{color:#fff;text-decoration:none;font-weight:800}header nav a{font-weight:700;margin-left:14px;font-size:15px}
h1{font-size:clamp(22px,4.5vw,30px);line-height:1.2;margin:22px 0 6px}h2{font-size:19px;margin:22px 0 8px}
.crumbs{font-size:14px;color:var(--mut);margin-top:14px}.crumbs a{color:var(--blue)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin:12px 0}
dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 16px;margin:0}dt{color:var(--mut)}dd{margin:0;font-weight:600}
.btn{display:inline-flex;align-items:center;min-height:44px;padding:8px 16px;border-radius:10px;background:var(--blue);color:#fff;font-weight:800;text-decoration:none;margin:4px 8px 4px 0}
@media (prefers-color-scheme:dark){.btn{color:#0d1726}}
.btn.sec{background:none;color:var(--blue);border:1px solid var(--line)}
a{color:var(--blue)}ul.l{list-style:none;padding:0;margin:0}ul.l li{padding:10px 0;border-top:1px solid var(--line)}ul.l small{color:var(--mut);display:block}
.note{font-size:14px;color:var(--mut)}footer{color:var(--mut);font-size:13px;padding:24px 16px 40px;text-align:center}
a:focus-visible{outline:3px solid var(--blue);outline-offset:2px}