:root{--red:#c8321e;--ink:#1d1b1a;--muted:#5d5752;--bg:#fbf8f4;--card:#fff}
*{box-sizing:border-box}body{margin:0;font:17px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg)}
.wrap{max-width:1040px;margin:0 auto;padding:0 24px}a{color:var(--red)}
header{background:#fff;border-bottom:1px solid #eee;position:sticky;top:0;z-index:2}.bar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;padding-top:14px;padding-bottom:14px}
.logo{font-weight:700;text-decoration:none;color:var(--ink);display:flex;align-items:center;gap:10px}.sun{width:22px;height:11px;border-radius:22px 22px 0 0;background:linear-gradient(var(--red),#f08a3c)}
nav a{margin-left:18px;text-decoration:none;color:var(--muted)}nav a.on,nav a:hover{color:var(--red)}
.hero{background:linear-gradient(180deg,#fff 0%,#fde9de 100%);padding:80px 0 60px;margin-bottom:40px}h1{font-size:clamp(2rem,5vw,3.4rem);line-height:1.1;margin:0 0 12px}.sub{font-size:1.25rem;color:var(--muted);margin:0}
section.wrap{margin-bottom:40px}.lead{font-size:1.2rem}
.grid2,.grid3{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{background:var(--card);border:1px solid #eee;border-radius:14px;padding:24px}.card h2,.card h3{margin-top:0}
dt{font-weight:600}dd{margin:0 0 10px}
.btn{display:inline-block;background:var(--red);color:#fff;padding:10px 18px;border-radius:999px;text-decoration:none;font-weight:600}
.ph{background:#fff3a0;border:1px dashed #c9a400;color:#5a4700;padding:1px 6px;border-radius:4px;font-size:.9em}
footer{border-top:1px solid #eee;padding:28px 0;color:var(--muted);font-size:.9rem;margin-top:60px}
@media(max-width:600px){nav a{margin:0 14px 0 0}.hero{padding:48px 0 36px}}