:root {
  --page: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --ink: #1d1d1f;
  --body: #4b5563;
  --muted: #6e7785;
  --line: #dfe4ea;
  --line-strong: #c7d0dc;
  --blue: #0066cc;
  --blue-strong: #0054a8;
  --blue-soft: #edf5ff;
  --max: 1120px;
  --radius: 8px;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  font-family: var(--sans);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-width: 320px; margin: 0; background: var(--surface); color: var(--ink); text-rendering: optimizeLegibility; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.shell { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; padding: 10px 14px; border-radius: 6px; background: var(--ink); color: #fff; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.topbar { position: sticky; z-index: 20; top: 0; border-bottom: 1px solid rgba(223, 228, 234, .86); background: rgba(255, 255, 255, .94); backdrop-filter: saturate(180%) blur(18px); }
.nav { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { min-height: 44px; display: inline-flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 720; }
.brand img { width: 36px; height: 36px; object-fit: contain; flex-shrink: 0; }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a { min-height: 44px; display: inline-flex; align-items: center; padding: 0 10px; color: var(--body); font-size: 13px; }
.nav-links a:hover, .nav-links a:focus-visible, .breadcrumb a:hover { color: var(--blue); outline: none; }
.breadcrumb { display: flex; gap: 9px; padding-top: 24px; color: var(--muted); font-size: 12px; }
.breadcrumb a { color: var(--blue); }
.service-hero { padding: 60px 0 72px; border-bottom: 1px solid var(--line); }
.hero-layout { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(300px, .7fr); gap: 76px; align-items: end; }
.eyebrow { color: var(--blue); font-size: 12px; font-weight: 720; text-transform: uppercase; }
h1, h2, h3, p { margin: 0; }
h1 { max-width: 820px; margin-top: 16px; font-size: 52px; line-height: 1.1; text-wrap: balance; }
.training-title span { display: block; }
.training-title { font-size: 44px; line-height: 1.25; }
h2 { font-size: 34px; line-height: 1.2; text-wrap: balance; }
h3 { font-size: 16px; line-height: 1.45; }
.answer-first { max-width: 780px; margin-top: 24px; color: var(--body); font-size: 18px; line-height: 1.78; }
.answer-first strong { color: var(--ink); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button { min-height: 48px; display: inline-flex; align-items: center; justify-content: center; padding: 0 20px; border: 1px solid var(--blue); border-radius: var(--radius); background: var(--surface); color: var(--blue); font-size: 14px; font-weight: 680; cursor: pointer; }
.button.primary { background: var(--blue); color: #fff; }
.button:hover, .button:focus-visible { border-color: var(--blue-strong); background: var(--blue-strong); color: #fff; outline: none; }
.service-facts { margin: 0; border-top: 1px solid var(--line-strong); }
.service-facts div { display: grid; grid-template-columns: 84px minmax(0, 1fr); gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.service-facts dt { color: var(--muted); font-size: 12px; }
.service-facts dd { margin: 0; font-size: 13px; font-weight: 650; line-height: 1.55; }
.section { padding: 72px 0; border-bottom: 1px solid var(--line); }
.section.alt { background: var(--page); }
.split-heading, .boundary-layout, .faq-layout { display: grid; grid-template-columns: minmax(260px, .72fr) minmax(0, 1.28fr); gap: 72px; }
.split-heading h2, .boundary-layout h2, .faq-layout h2 { max-width: 430px; margin-top: 10px; }
.prose { color: var(--body); font-size: 15px; line-height: 1.78; }
.prose p + p { margin-top: 18px; }
.check-list { margin: 24px 0 0; padding: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.check-list li { position: relative; padding: 15px 0 15px 26px; border-bottom: 1px solid var(--line); }
.check-list li::before { content: ""; position: absolute; top: 22px; left: 2px; width: 7px; height: 7px; border-radius: 50%; background: var(--blue); }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, .7fr); gap: 52px; align-items: end; margin-bottom: 30px; }
.section-head h2 { margin-top: 10px; }
.section-head > p { color: var(--body); font-size: 14px; line-height: 1.7; }
.process-list { margin: 0; padding: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.process-list li { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 18px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.process-list li > span, .deliverable-grid article > span { color: var(--blue); font-size: 11px; font-weight: 720; }
.process-list p, .deliverable-grid p { margin-top: 5px; color: var(--body); font-size: 13.5px; line-height: 1.65; }
.deliverable-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.deliverable-grid article { min-width: 0; padding: 22px 20px 22px 0; }
.deliverable-grid article + article { padding-left: 20px; border-left: 1px solid var(--line); }
.deliverable-grid h3 { margin-top: 13px; }
.reading-list { border-top: 1px solid var(--line-strong); }
.reading-list a { display: grid; grid-template-columns: 120px minmax(0, 1fr) 24px; gap: 22px; align-items: center; min-height: 74px; border-bottom: 1px solid var(--line); }
.reading-list a::after { content: "›"; color: var(--blue); font-size: 24px; }
.reading-list span { color: var(--blue); font-size: 12px; font-weight: 680; }
.reading-list strong { font-size: 16px; line-height: 1.5; }
.reading-list a:hover strong, .reading-list a:focus-visible strong { color: var(--blue); }
.faq-layout > div:first-child > p { max-width: 380px; margin-top: 18px; color: var(--body); font-size: 14px; line-height: 1.7; }
.faq-list { border-top: 1px solid var(--line-strong); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; min-height: 62px; display: flex; align-items: center; padding: 12px 42px 12px 0; cursor: pointer; font-size: 15px; font-weight: 680; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; color: var(--blue); font-size: 21px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list p { padding: 0 40px 18px 0; color: var(--body); font-size: 14px; line-height: 1.75; }
.contact { padding: 62px 0; background: var(--blue); color: #fff; }
.contact-layout { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 48px; align-items: center; }
.contact .eyebrow { color: #dbeafe; }
.contact h2 { margin-top: 8px; }
.contact p { max-width: 690px; margin-top: 12px; color: #e8f2ff; font-size: 14px; line-height: 1.7; }
.contact .button { border-color: #fff; background: #fff; color: var(--blue); }
.contact .button:hover, .contact .button:focus-visible { background: var(--blue-soft); }
.footer { padding: 34px 0; border-top: 1px solid var(--line); background: var(--surface); }
.footer-inner { display: grid; grid-template-columns: 1fr auto; gap: 24px 48px; align-items: start; }
.footer strong { font-size: 15px; }
.footer p, .legal { margin-top: 6px; color: var(--muted); font-size: 12px; line-height: 1.6; }
.footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 16px; color: var(--body); font-size: 12px; }
.footer nav a:hover { color: var(--blue); }
.legal { grid-column: 1 / -1; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-top: 18px; border-top: 1px solid var(--line); }

@media (max-width: 860px) {
  .hero-layout, .split-heading, .boundary-layout, .faq-layout, .section-head { grid-template-columns: 1fr; gap: 30px; }
  .hero-layout { align-items: start; }
  .service-facts { max-width: 560px; }
  .deliverable-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .deliverable-grid article:nth-child(3) { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .deliverable-grid article:nth-child(4) { border-top: 1px solid var(--line); }
  .faq-layout > div:first-child > p { max-width: none; }
}

@media (max-width: 680px) {
  .shell { width: min(100% - 32px, var(--max)); }
  .nav { min-height: 54px; }
  .nav-links { gap: 2px; overflow-x: auto; }
  .nav-links a { padding: 0 7px; white-space: nowrap; }
  .nav-links a:nth-child(2), .nav-links a:nth-child(3) { display: none; }
  .breadcrumb { padding-top: 18px; }
  .service-hero { padding: 38px 0 48px; }
  h1 { font-size: 34px; line-height: 1.16; }
  h1.training-title { font-size: 30px; line-height: 1.3; }
  h2 { font-size: 27px; }
  .answer-first { margin-top: 18px; font-size: 16px; line-height: 1.72; }
  .hero-actions { margin-top: 22px; }
  .hero-actions .button { width: 100%; }
  .service-facts div { padding: 12px 0; }
  .section { padding: 50px 0; }
  .section-head { margin-bottom: 22px; }
  .process-list li { grid-template-columns: 32px minmax(0, 1fr); gap: 12px; padding: 17px 0; }
  .deliverable-grid { grid-template-columns: 1fr; }
  .deliverable-grid article, .deliverable-grid article + article, .deliverable-grid article:nth-child(3) { padding: 18px 0; border-top: 1px solid var(--line); border-left: 0; }
  .deliverable-grid article:first-child { border-top: 0; }
  .reading-list a { grid-template-columns: 1fr 22px; gap: 4px 10px; padding: 15px 0; }
  .reading-list span { grid-column: 1; }
  .reading-list strong { grid-column: 1; font-size: 15px; }
  .reading-list a::after { grid-column: 2; grid-row: 1 / 3; }
  .contact { padding: 48px 0; }
  .contact-layout { grid-template-columns: 1fr; gap: 24px; }
  .contact .button { width: 100%; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer nav { justify-content: flex-start; }
  .legal { grid-column: auto; }
}