*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:#1a1f2b;background:#f4f5f7;line-height:1.5}
header{background:#0f1b2d;color:#fff;padding:18px 20px}header a{color:#fff;text-decoration:none}.brand{font-weight:700;font-size:20px;letter-spacing:.3px}.sub{font-size:12px;opacity:.75;letter-spacing:.08em;text-transform:uppercase}
main{max-width:640px;margin:0 auto;padding:20px 16px 40px}.card{background:#fff;border-radius:12px;padding:20px;box-shadow:0 1px 3px rgba(0,0,0,.08);margin-bottom:16px}
h1{font-size:24px;margin:0 0 6px}h2{font-size:17px;margin:0 0 12px}p.lead{margin:0;color:#4a5262}
.amounts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.amounts button{padding:14px 0;font-size:17px;font-weight:600;border:1.5px solid #c9ced8;border-radius:8px;background:#fff;cursor:pointer;color:#0f1b2d}.amounts button.on{background:#0f1b2d;color:#fff;border-color:#0f1b2d}
label{display:block;font-size:14px;font-weight:600;margin:12px 0 4px}input,select{width:100%;padding:12px;font-size:16px;border:1.5px solid #c9ced8;border-radius:8px;background:#fff}input:focus,select:focus{outline:none;border-color:#2b5cab}
.row{display:grid;grid-template-columns:1fr 1fr;gap:10px}.row3{display:grid;grid-template-columns:2fr 1fr 1.3fr;gap:10px}@media(max-width:480px){.row3{grid-template-columns:1fr 1fr}.row3>:first-child{grid-column:1/3}}
.seg{display:grid;grid-template-columns:1fr 1fr;border:1.5px solid #0f1b2d;border-radius:8px;overflow:hidden}.seg button{padding:11px;border:0;background:#fff;font-size:15px;font-weight:600;cursor:pointer;color:#0f1b2d}.seg button.on{background:#0f1b2d;color:#fff}
.chk{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:14px;margin:10px 0}.chk input{width:20px;height:20px;flex:none;margin-top:2px}
.note{font-size:13px;color:#5b6475}.err{background:#fdecec;color:#9b1c1c;padding:10px 12px;border-radius:8px;font-size:14px;display:none;margin-top:12px}
.go{width:100%;padding:16px;font-size:18px;font-weight:700;background:#2b5cab;color:#fff;border:0;border-radius:10px;margin-top:16px;cursor:pointer}.go:disabled{opacity:.6}
.disclaimer{border:2px solid #1a1f2b;padding:10px 12px;font-size:14px;margin-top:16px;border-radius:4px}
footer{max-width:640px;margin:0 auto;padding:0 16px 40px;font-size:13px;color:#5b6475}footer a{color:#2b5cab}.hide{display:none}
.doc h2{margin-top:20px}.review{background:#fff7e0;border:1px solid #e8c766;padding:10px;border-radius:8px;font-size:13px}