:root{--ink:#1F2A33;--muted:#5B6770;--rule:#D9DEE2;--bg:#FAFAF8;--card:#fff;--brand:#2F6B57;--tint:#E3EFE9}
*{box-sizing:border-box}body{margin:0;font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand)}img{max-width:100%;height:auto;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
header.site{background:#fff;border-bottom:1px solid var(--rule)}header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
header.site img{height:30px;width:auto}nav.top a{margin-left:18px;text-decoration:none;color:var(--ink);font-weight:600;font-size:15px}
.hero{padding:56px 0 40px;background:var(--tint)}.hero h1{font:700 clamp(28px,5vw,44px)/1.15 Georgia,serif;margin:0 0 12px}.hero p{font-size:18px;color:var(--muted);max-width:640px;margin:0}
h1,h2,h3{line-height:1.25}h2{font-size:24px;margin:40px 0 16px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.card{background:var(--card);border:1px solid var(--rule);border-radius:10px;overflow:hidden;text-decoration:none;color:inherit;display:flex;flex-direction:column}
.card:hover{border-color:var(--brand)}.card .body{padding:14px}.card h3{font-size:16px;margin:0 0 6px}.card p{margin:0;color:var(--muted);font-size:14px}
.subj{border-left:5px solid var(--c);padding:18px}.subj h3{margin:0 0 6px}
.price{font-weight:700;color:var(--brand)}
.product{display:grid;gap:32px;grid-template-columns:1fr;padding:32px 0}@media(min-width:820px){.product{grid-template-columns:340px 1fr}}
.product .cover{border:1px solid var(--rule);border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.08)}
.buy{background:#fff;border:1px solid var(--rule);border-radius:10px;padding:18px;margin-top:16px}
.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:8px;padding:14px 22px;font:700 17px system-ui;cursor:pointer;text-decoration:none;width:100%;text-align:center}
.btn:hover{filter:brightness(1.08)}
.crumbs{font-size:14px;color:var(--muted);padding-top:18px}.crumbs a{color:var(--muted)}
.kicker{font:700 12px system-ui;letter-spacing:.08em;text-transform:uppercase;color:var(--c,var(--brand))}
.preview{background:#fff;border:1px solid var(--rule);border-radius:10px;padding:20px 22px}
.tip{background:var(--tint);border-left:4px solid var(--brand);padding:12px 16px;border-radius:6px;margin:16px 0}
ol.steps{padding-left:22px}ol.steps li{margin-bottom:10px}
.toc li{margin:4px 0}
.fade{position:relative}.fade:after{content:"";position:absolute;left:0;right:0;bottom:0;height:80px;background:linear-gradient(transparent,#fff)}
footer.site{margin-top:56px;padding:32px 0;background:#fff;border-top:1px solid var(--rule);font-size:14px;color:var(--muted)}footer.site a{color:var(--muted);margin-right:16px}
.legal h1{font-family:Georgia,serif}.legal{max-width:760px;padding:24px 0}