:root {
  color-scheme: light;
  --ink: #17191c;
  --muted: #626970;
  --line: #dfe3e6;
  --soft: #f5f7f8;
  --blue: #0878ef;
  --green: #0a8f70;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: #fff;
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  margin: 0;
}

a { color: inherit; text-decoration: none; }

main { margin: 0 auto; max-width: 1040px; padding: 0 32px; }

.topbar {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  min-height: 76px;
}

.brand { align-items: center; display: flex; font-size: 18px; font-weight: 700; gap: 11px; }
.brand img { border-radius: 9px; }
nav { display: flex; font-size: 14px; gap: 28px; }
nav a:hover, footer a:hover { color: var(--blue); }

.intro { border-bottom: 1px solid var(--line); padding: 82px 0 70px; }
.kicker, .section-heading > p { color: var(--blue); font-size: 12px; font-weight: 750; margin: 0 0 12px; }
h1 { font-size: 48px; letter-spacing: 0; line-height: 1.12; margin: 0 0 18px; }
.intro > p:last-child { color: var(--muted); font-size: 19px; margin: 0; }

.content-section { display: grid; gap: 64px; grid-template-columns: 220px 1fr; padding: 68px 0; }
.content-section + .content-section { border-top: 1px solid var(--line); }
.section-heading h2, .contact h2, .english h2 { font-size: 28px; letter-spacing: 0; margin: 0; }

.steps { display: grid; gap: 30px; list-style: none; margin: 0; padding: 0; }
.steps li { align-items: flex-start; display: grid; gap: 16px; grid-template-columns: 32px 1fr; }
.steps li > span { align-items: center; background: #e8f3ff; border-radius: 50%; color: var(--blue); display: flex; font-size: 13px; font-weight: 750; height: 32px; justify-content: center; width: 32px; }
h3 { font-size: 17px; margin: 2px 0 7px; }
.steps p, .faq-list p, .contact p, .english p { color: var(--muted); font-size: 15px; line-height: 1.7; margin: 0; }

.faq-list { border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); padding: 20px 0; }
summary { cursor: pointer; font-size: 16px; font-weight: 650; list-style-position: outside; margin-left: 18px; padding-left: 5px; }
details p { margin: 13px 0 0 23px; max-width: 620px; }

.contact {
  align-items: center;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
  margin: 12px 0 68px;
  padding: 32px;
}
.contact h2 { margin-bottom: 9px; }
.contact-button { background: var(--ink); border-radius: 6px; color: #fff; font-size: 14px; font-weight: 650; padding: 12px 16px; }

.english { border-top: 1px solid var(--line); padding: 64px 0; }
.english h2 { margin-bottom: 18px; }
.english p { margin-bottom: 12px; max-width: 760px; }

footer { align-items: center; border-top: 1px solid var(--line); color: var(--muted); display: flex; font-size: 13px; justify-content: space-between; padding: 28px 0 40px; }

.policy { max-width: 760px; padding-bottom: 60px; }
.policy-header { border-bottom: 1px solid var(--line); padding: 72px 0 48px; }
.policy-header h1 { font-size: 42px; }
.effective { color: var(--muted); font-size: 14px; }
.policy article { padding: 38px 0; }
.policy article + article { border-top: 1px solid var(--line); }
.policy h2 { font-size: 23px; margin: 0 0 18px; }
.policy h3 { font-size: 17px; margin: 26px 0 8px; }
.policy article p, .policy li { color: #42474c; font-size: 15px; line-height: 1.75; }
.policy ul { padding-left: 22px; }
.back-link { color: var(--blue); display: inline-block; font-size: 14px; margin-top: 36px; }
.policy a.mailto { color: var(--blue); text-decoration: underline; }

@media (max-width: 720px) {
  main { padding: 0 20px; }
  .topbar { align-items: flex-start; flex-direction: column; gap: 14px; padding: 16px 0; }
  nav { gap: 18px; overflow-x: auto; width: 100%; }
  .intro { padding: 56px 0 48px; }
  h1 { font-size: 36px; }
  .content-section { gap: 30px; grid-template-columns: 1fr; padding: 48px 0; }
  .contact { align-items: flex-start; flex-direction: column; gap: 24px; }
  footer { align-items: flex-start; flex-direction: column; gap: 10px; }
}