*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:#1d2733;line-height:1.65;background:#fff}
a{color:#1f6f5c}img{max-width:100%;height:auto}.wrap{max-width:1080px;margin:0 auto;padding:0 20px}.narrow{max-width:760px}
header.site{border-bottom:1px solid #e6ebf0;background:#fff;position:sticky;top:0;z-index:5}header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-weight:800;color:#1f3a5f;text-decoration:none;font-size:1.1rem}.logo span{color:#2e7d6b}nav a{margin-left:18px;text-decoration:none;color:#3c4a5a;font-size:.95rem}
.btn{display:inline-block;background:#2e7d6b;color:#fff!important;text-decoration:none;font-weight:700;padding:14px 26px;border-radius:10px;box-shadow:0 4px 14px rgba(46,125,107,.3)}.btn:hover{background:#25685a}.btn.sm{padding:8px 16px;box-shadow:none}
.hero{background:linear-gradient(135deg,#f3f7fb,#e8f3ef);padding:70px 0 50px;text-align:center}.hero h1{font-size:clamp(1.9rem,4.5vw,3rem);line-height:1.15;margin:0 0 16px;color:#1f3a5f}
.hero p.lead{font-size:1.2rem;max-width:720px;margin:0 auto 26px;color:#3c4a5a}.price{font-size:1.1rem;margin-top:14px;color:#3c4a5a}.price b{font-size:1.6rem;color:#1f3a5f}
.shot{margin:40px auto 0;border-radius:12px;box-shadow:0 12px 40px rgba(31,58,95,.18);border:1px solid #dfe6ee;background:#fff}
section{padding:60px 0}section.alt{background:#f7f9fb}.steps{list-style:none;padding:0;margin:0}.steps li{margin:0 0 44px}.steps .shot{margin-top:0;display:block}.steps figcaption{text-align:left;font-size:1rem;color:#1d2733;margin-top:14px;max-width:860px}.num{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:#2e7d6b;color:#fff;font-weight:800;margin-right:10px;font-size:.95rem}h2{font-size:clamp(1.5rem,3vw,2rem);color:#1f3a5f;margin-top:0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px}.card{background:#fff;border:1px solid #e6ebf0;border-radius:12px;padding:22px}.card h3{margin:0 0 8px;color:#1f3a5f;font-size:1.1rem}
figure{margin:0 0 34px}figcaption{font-size:.9rem;color:#5b6876;margin-top:8px;text-align:center}
details{border:1px solid #e6ebf0;border-radius:10px;padding:14px 18px;margin-bottom:12px;background:#fff}summary{font-weight:700;cursor:pointer;color:#1f3a5f}
.notice{background:#fff8e1;border:1px solid #f1d98a;border-radius:10px;padding:16px 18px;font-size:.95rem}
.buybox{text-align:center;background:#1f3a5f;color:#fff;border-radius:16px;padding:44px 20px}.buybox h2{color:#fff}.buybox ul{list-style:none;padding:0;margin:0 0 24px}.buybox li{margin:6px 0}
article h2{margin-top:2em}article h3{color:#1f3a5f}table.t{border-collapse:collapse;width:100%;font-size:.95rem;margin:1em 0}table.t th,table.t td{border:1px solid #dfe6ee;padding:8px;text-align:left}table.t th{background:#f3f7fb}
.tblwrap{overflow-x:auto}code{background:#f3f5f7;padding:2px 5px;border-radius:4px;font-size:.92em}
footer{background:#0f2238;color:#c7d2de;padding:40px 0;font-size:.88rem}footer a{color:#e3ecf5;margin-right:16px}footer p{max-width:900px}
@media(max-width:640px){nav a.hide-m{display:none}section{padding:44px 0}.hero{padding:48px 0 34px}}