:root {
  color: #10213e;
  background: #f7faff;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; line-height: 1.78; }
a { color: #1d4ed8; }
.nav, main, footer { max-width: 1040px; margin: 0 auto; padding-left: 28px; padding-right: 28px; }
.nav { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { color: #10213e; font-size: 18px; font-weight: 800; text-decoration: none; }
.brand span { display: inline-grid; width: 29px; height: 29px; margin-right: 8px; place-items: center; border-radius: 8px; color: #fff; background: linear-gradient(135deg, #2563eb, #4f46e5); font-size: 13px; vertical-align: -1px; }
.nav-links { display: flex; gap: 16px; align-items: center; font-size: 14px; }
.nav-action, .cta { display: inline-block; padding: 9px 15px; border-radius: 8px; background: #2563eb; color: #fff; font-weight: 700; text-decoration: none; }
main { padding-top: 38px; padding-bottom: 52px; }
.eyebrow { color: #1d4ed8; font-size: 14px; font-weight: 700; }
h1 { max-width: 820px; margin: 10px 0 18px; font-size: clamp(34px, 5vw, 54px); letter-spacing: -1.8px; line-height: 1.16; }
h2 { margin-top: 54px; font-size: 26px; line-height: 1.35; }
h3 { margin: 0 0 6px; font-size: 18px; }
p, li { max-width: 830px; color: #42526b; font-size: 16px; }
.intro { max-width: 780px; color: #42526b; font-size: 18px; }
.cta { margin: 14px 0 10px; padding: 12px 18px; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.card { padding: 22px; border: 1px solid #dbe5f4; border-radius: 14px; background: #fff; box-shadow: 0 8px 24px rgba(35, 67, 122, .05); }
.card p { margin-bottom: 0; font-size: 15px; }
.callout { max-width: 830px; margin: 24px 0; padding: 18px 20px; border-left: 4px solid #2563eb; border-radius: 0 12px 12px 0; background: #eaf2ff; color: #29405f; }
.step-list { padding-left: 24px; }
.step-list li { margin-bottom: 12px; }
.faq { padding: 18px 22px; border-bottom: 1px solid #dbe5f4; background: #fff; }
.faq:first-of-type { border-radius: 12px 12px 0 0; }
.faq:last-of-type { border: 0; border-radius: 0 0 12px 12px; }
.faq p { margin-bottom: 0; }
footer { padding-top: 24px; padding-bottom: 36px; border-top: 1px solid #dbe5f4; color: #64748b; font-size: 14px; }
@media (max-width: 680px) { .nav, main, footer { padding-left: 20px; padding-right: 20px; } .grid { grid-template-columns: 1fr; } .nav-links a:not(.nav-action) { display: none; } h1 { letter-spacing: -1px; } }