:root {
  color: #17243a;
  background: #ffffff;
  font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
  font-synthesis-weight: none;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: #ffffff; color: #17243a; }
a { color: inherit; }
.site-header {
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 max(24px, calc((100vw - 1120px) / 2));
  border-bottom: 1px solid #e2e8f0;
  background: #ffffff;
}
.brand { display: flex; align-items: baseline; gap: 9px; color: #123767; text-decoration: none; }
.brand b { font-size: 20px; }
.brand span { color: #657287; font-size: 12px; }
.site-header nav { display: flex; align-items: center; gap: 20px; margin-left: auto; }
.site-header nav a { color: #4a586c; font-size: 13px; text-decoration: none; }
.site-header nav a:hover { color: #0b55bd; }
.header-action, .primary-action, .secondary-action {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border-radius: 6px;
  font-weight: 700;
  text-decoration: none;
}
.header-action, .primary-action { background: #0b55bd; color: #ffffff; }
.header-action:hover, .primary-action:hover { background: #084797; }
.secondary-action { border: 1px solid #b9c6d8; background: #ffffff; color: #123767; }
.secondary-action:hover { border-color: #6d86a8; background: #f7f9fc; }
.intro-band, .content-band, .faq-band, .cta-band { width: 100%; }
.intro-inner, .content-inner, .faq-inner, .cta-inner, .footer-inner {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}
.intro-band { background: #f4f7fb; border-bottom: 1px solid #dfe6ef; }
.intro-inner { padding: 60px 0 48px; }
.eyebrow { margin: 0 0 10px; color: #47705c; font-size: 13px; font-weight: 700; }
h1 { max-width: 780px; margin: 0; color: #0f438c; font-size: 38px; line-height: 52px; letter-spacing: 0; }
.lead { max-width: 760px; margin: 18px 0 0; color: #3e4d62; font-size: 17px; line-height: 30px; }
.intro-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.evidence-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 38px;
}
.evidence-item { min-height: 104px; padding: 18px; border: 1px solid #d8e0ea; border-radius: 7px; background: #ffffff; }
.evidence-item b { display: block; color: #17243a; font-size: 16px; }
.evidence-item p { margin: 7px 0 0; color: #5a687c; font-size: 13px; line-height: 22px; }
.content-inner { padding: 52px 0; }
.content-band.alt { background: #fbfcfe; border-top: 1px solid #edf0f4; border-bottom: 1px solid #edf0f4; }
.section-heading { max-width: 760px; }
.section-heading span { color: #9a6513; font-size: 12px; font-weight: 700; }
h2 { margin: 6px 0 0; color: #17243a; font-size: 25px; line-height: 36px; letter-spacing: 0; }
.section-heading p { margin: 12px 0 0; color: #56657a; line-height: 26px; }
.point-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 30px 0 0; border-top: 1px solid #dfe5ed; }
.point-item { padding: 21px 18px 21px 0; border-bottom: 1px solid #dfe5ed; }
.point-item:nth-child(odd) { padding-right: 28px; border-right: 1px solid #dfe5ed; }
.point-item:nth-child(even) { padding-left: 28px; }
.point-item b { display: block; font-size: 15px; }
.point-item p { margin: 7px 0 0; color: #5b687a; font-size: 13px; line-height: 23px; }
.faq-inner { padding: 52px 0; }
.faq-list { max-width: 860px; margin-top: 26px; border-top: 1px solid #dfe5ed; }
.faq-list details { padding: 18px 0; border-bottom: 1px solid #dfe5ed; }
.faq-list summary { cursor: pointer; color: #1d2b40; font-weight: 700; }
.faq-list p { margin: 11px 0 0; color: #58677b; line-height: 25px; }
.cta-band { background: #17345b; color: #ffffff; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding: 38px 0; }
.cta-inner h2 { color: #ffffff; }
.cta-inner p { margin: 8px 0 0; color: #d7e0ec; }
.cta-band .primary-action { background: #ffffff; color: #17345b; }
.cta-band .primary-action:hover { background: #edf3fa; }
.related-links { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 24px; }
.related-links a { color: #0b55bd; font-size: 13px; font-weight: 600; }
.site-footer { border-top: 1px solid #e2e8f0; }
.footer-inner { display: flex; justify-content: space-between; gap: 20px; padding: 24px 0; color: #667386; font-size: 12px; }
@media (max-width: 820px) {
  .site-header { padding: 0 18px; }
  .site-header nav { display: none; }
  .header-action { margin-left: auto; }
  .intro-inner, .content-inner, .faq-inner, .cta-inner, .footer-inner { width: min(100% - 32px, 1120px); }
  .intro-inner { padding: 42px 0 36px; }
  h1 { font-size: 30px; line-height: 42px; }
  .lead { font-size: 15px; line-height: 27px; }
  .evidence-grid, .point-list { grid-template-columns: 1fr; }
  .point-item:nth-child(odd), .point-item:nth-child(even) { padding: 18px 0; border-right: 0; }
  .cta-inner, .footer-inner { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 460px) {
  .brand span { display: none; }
  .header-action { min-height: 36px; padding: 0 12px; font-size: 13px; }
  h1 { font-size: 27px; line-height: 38px; }
  .evidence-grid { margin-top: 28px; }
}