:root{--ink:#342A27;--ink-2:#5E514C;--ink-3:#8C7F79;--red:#DD5551;--red-deep:#C6423E;
      --paper:#FAF6F0;--card:#FFFFFF;--line:rgba(52,42,39,.10);--shadow-sm:0 4px 16px rgba(52,42,39,.08)}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);
     font:400 17px/1.7 Inter,system-ui,-apple-system,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--red-deep)}
a:hover{color:var(--red)}
header.bar{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
header.bar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 24px}
header.bar img{height:30px;width:auto;display:block}
header.bar a.back{font-weight:600;font-size:.95rem;text-decoration:none}
main{max-width:760px;margin:0 auto;padding:56px 24px 40px}
h1{font-size:clamp(2rem,5vw,2.9rem);font-weight:800;letter-spacing:-.028em;line-height:1.08;margin:0 0 10px}
.eff{color:var(--ink-3);font-size:.95rem;margin:0 0 40px}
h2{font-size:1.28rem;font-weight:700;letter-spacing:-.015em;margin:44px 0 12px;padding-top:26px;border-top:1px solid var(--line)}
h2:first-of-type{border-top:0;padding-top:0;margin-top:34px}
h3{font-size:1.03rem;font-weight:700;margin:24px 0 6px}
p,li{color:var(--ink-2)}
p{margin:0 0 14px}
ul{margin:0 0 14px;padding-left:22px}
li{margin:0 0 8px}
strong{color:var(--ink);font-weight:600}
.note{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--red);
      border-radius:12px;padding:18px 20px;margin:24px 0;box-shadow:var(--shadow-sm)}
.note p:last-child{margin-bottom:0}
footer{border-top:1px solid var(--line);margin-top:56px}
footer .wrap{max-width:760px;margin:0 auto;padding:26px 24px 40px;display:flex;flex-wrap:wrap;
             gap:8px 18px;justify-content:space-between;color:var(--ink-3);font-size:.9rem}
footer a{margin-right:14px;text-decoration:none}
@media(max-width:520px){main{padding:36px 20px 30px}}