:root { --ink:#151515; --muted:#5f5f5f; --line:#d8d8d8; --paper:#fff; }
* { box-sizing:border-box; }
body { margin:0; background:var(--paper); color:var(--ink); font-family:Arial,Helvetica,sans-serif; -webkit-font-smoothing:antialiased; }
.page { width:min(760px, calc(100% - 56px)); margin:0 auto; }
.site-header { padding:18px 0 0; }
.brand { color:var(--ink); text-decoration:none; font-weight:700; font-size:15px; letter-spacing:-.02em; }
main.page { padding-top:34px; padding-bottom:28px; }
h1 { margin:0 0 18px; max-width:700px; font-size:clamp(25px,3.1vw,34px); white-space:nowrap; line-height:1.02; letter-spacing:-.042em; font-weight:650; }
p { margin:0 0 12px; font-size:15.5px; line-height:1.43; letter-spacing:-.006em; }
.key-line { margin-top:17px; margin-bottom:28px; font-size:19px; line-height:1.25; font-weight:650; letter-spacing:-.015em; }
.content { border-top:1px solid var(--line); padding-top:24px; }
h2 { margin:0 0 13px; font-size:23px; line-height:1.08; letter-spacing:-.025em; }
.comparison { margin:17px 0; padding:13px 0 11px; border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.comparison p { margin:0 0 3px; font-size:16.5px; }
.comparison p:last-child { margin-bottom:0; }
.principle { margin-top:14px; font-size:16.5px; }
.feedback { border-top:1px solid var(--line); margin-top:25px; padding-top:16px; display:grid; grid-template-columns:1fr 320px; gap:22px; align-items:start; }
.feedback > p { color:var(--ink); font-size:15.5px; line-height:1.43; margin:0; }
.feedback > p:nth-child(2) { display:none; }
.interest-form { display:flex; gap:7px; margin:0; width:100%; flex-wrap:wrap; }
input,button { font:inherit; border:1px solid #aaa; border-radius:0; padding:8px 9px; min-height:38px; font-size:13px; }
input { flex:1; min-width:170px; background:#fff; color:var(--ink); }
button { background:var(--ink); color:#fff; border-color:var(--ink); cursor:pointer; font-weight:600; }
.form-note { width:100%; margin:0; color:var(--muted); font-size:11px; }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
@media (max-width:700px) {
  .page { width:min(100% - 34px, 620px); }
  main.page { padding-top:30px; padding-bottom:34px; }
  h1 { font-size:clamp(25px,5.2vw,34px); white-space:normal; }
  .feedback { display:block; }
  .interest-form { margin-top:15px; }
}
@media (max-width:460px) {
  h1 { font-size:34px; }
  p { font-size:15px; }
  .key-line { font-size:18px; }
  .interest-form { display:block; }
  input,button { width:100%; }
  button { margin-top:7px; }
}