:root{--ink:#11142b;--blue:#2742d6;--yellow:#ffe24a;--paper:#fffdf7;--line:#d9dbe8;--muted:#5d6177}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:5}nav{max-width:980px;margin:auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{font:700 1.35rem Georgia,serif;color:var(--ink);text-decoration:none}.brand b{color:var(--blue)}nav .links{display:flex;gap:18px;flex-wrap:wrap}a{color:var(--blue)}main{max-width:820px;margin:0 auto;padding:54px 24px 80px}h1,h2{font-family:Georgia,"Times New Roman",serif;line-height:1.15}h1{font-size:clamp(2.2rem,7vw,4rem);font-weight:500;margin:0 0 14px}h2{font-size:1.55rem;margin-top:40px}p,li{max-width:72ch}.intro{font-size:1.1rem;color:var(--muted);margin-bottom:36px}.box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;margin:24px 0}.notice{border-left:5px solid var(--yellow)}.back{display:inline-block;margin-top:30px;font-weight:700}footer{border-top:1px solid var(--line);padding:28px 24px;text-align:center;color:var(--muted)}label{font-weight:650;display:block}.consent{display:flex;align-items:flex-start;gap:12px;margin:18px 0}.consent input{margin-top:7px;transform:scale(1.2)}.pay{display:inline-flex;align-items:center;justify-content:center;width:100%;border:0;border-radius:12px;background:var(--blue);color:#fff;text-decoration:none;padding:15px 20px;font-weight:750;font-size:1rem;cursor:pointer}.pay[aria-disabled="true"]{opacity:.45;pointer-events:none}.price{font:700 2.6rem Consolas,monospace;margin:8px 0}.secure{font-size:.9rem;color:var(--muted);text-align:center}.error{color:#a21b1b;font-weight:700}.offer-list{padding-left:20px}@media(max-width:640px){nav{align-items:flex-start}.links{font-size:.9rem}main{padding-top:38px}}