:root{font-family:Arial,sans-serif;color:#151719;background:#f6f6f7}*{box-sizing:border-box}body{margin:0}header{max-width:1100px;margin:auto;padding:24px;display:flex;justify-content:space-between;gap:20px}a{color:inherit}header>a:first-child{text-decoration:none;font-weight:900}b{color:#e7192b}main{max-width:780px;margin:10px auto 60px;padding:32px;background:white;border:1px solid #e3e3e7;border-radius:16px}h1{font-size:2rem;margin:8px 0 24px}h2{font-size:1.15rem}label{display:block;margin:18px 0 8px;font-weight:700}input,select{font:inherit;padding:12px;border:1px solid #ccc;border-radius:7px;width:100%}input[type=checkbox]{width:auto}button,.button{display:inline-block;background:#ffda00;color:#111;padding:14px 20px;border:0;border-radius:8px;font:inherit;font-weight:800;text-decoration:none;cursor:pointer}.price{font-size:1.7rem;font-weight:900;color:#e7192b}.notice{padding:18px;background:#fff8d5;border-left:4px solid #ffda00;line-height:1.55}.muted{color:#555;font-size:.9rem;line-height:1.6}.error{color:#b21b2a;padding:15px;background:#fff0f0}.order{padding:18px 0;border-bottom:1px solid #ddd}.order form{display:flex;gap:12px;flex-wrap:wrap;align-items:center}.order input[type=checkbox]{margin-right:6px}.order label{font-size:.8rem;font-weight:400}.order select{width:auto}.links{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}@media(max-width:760px){main{margin:10px 14px 30px;padding:23px}h1{font-size:1.7rem}header{padding:20px 16px;font-size:.85rem}}