:root {
  --ink: #17232d;
  --petrol: #123b50;
  --green: #16845b;
  --muted: #526570;
  --border: #dce4e8;
  --canvas: #f6f8fa;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 24px; }
body { margin: 0; background: var(--canvas); color: var(--ink); font: 16px/1.7 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: var(--green); text-underline-offset: 3px; overflow-wrap: anywhere; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--green); outline-offset: 4px; border-radius: 3px; }
.skip-link { position: absolute; top: -90px; left: 16px; background: white; padding: 12px; z-index: 2; }
.skip-link:focus { top: 10px; }
.site-header { background: white; border-bottom: 1px solid var(--border); box-shadow: 0 2px 8px rgba(37, 45, 59, .04); }
.header-inner { max-width: 1100px; margin: auto; padding: 24px; text-align: center; }
.logo { display: inline-block; max-width: 100%; width: 250px; color: var(--petrol); text-decoration: none; font-size: 34px; font-weight: 800; letter-spacing: -1.2px; line-height: 1.25; }
.logo span { color: var(--green); }
.page-links { display: flex; justify-content: center; flex-wrap: wrap; column-gap: 24px; row-gap: 4px; margin-top: 15px; font-size: 14px; }
.page-links a { display: inline-flex; align-items: center; min-height: 44px; }
.page-links [aria-current] { color: var(--petrol); font-weight: 700; }
main { max-width: 1100px; margin: 0 auto; padding: 42px 24px 56px; }
.page-intro { max-width: 780px; margin-bottom: 32px; }
.eyebrow { color: var(--green); font-size: 11px; letter-spacing: 2px; text-transform: uppercase; font-weight: 750; margin: 0 0 12px; }
h1 { color: var(--petrol); font-size: clamp(32px, 5vw, 48px); line-height: 1.15; letter-spacing: -1.4px; margin: 0 0 18px; }
.lead { font-size: 18px; color: var(--muted); margin: 0; }
.updated { color: var(--muted); font-size: 13px; margin: 16px 0 0; }
.content-grid { display: grid; grid-template-columns: 205px minmax(0, 1fr); gap: 28px; align-items: start; }
.contents { position: sticky; top: 24px; padding: 18px 0; }
.contents h2 { color: var(--petrol); font-size: 14px; margin: 0 0 8px; }
.contents ol { list-style: none; padding: 0; margin: 0; }
.contents a { display: flex; align-items: center; min-height: 44px; padding: 5px 0; font-size: 14px; text-decoration: none; }
.article-stack { display: grid; gap: 20px; min-width: 0; }
.panel { min-width: 0; padding: 28px; background: white; border: 1px solid var(--border); border-radius: 20px; box-shadow: 0 0 5px rgba(37, 45, 59, .04), 0 2px 8px rgba(37, 45, 59, .04); }
.panel h2 { color: var(--petrol); font-size: 23px; line-height: 1.3; letter-spacing: -.45px; margin: 0 0 16px; }
.panel h3 { color: var(--petrol); font-size: 17px; line-height: 1.4; margin: 24px 0 9px; }
.panel p { margin: 0 0 14px; }
.panel p:last-child { margin-bottom: 0; }
.panel ul, .panel ol { padding-left: 22px; margin: 12px 0 0; }
.panel li + li { margin-top: 10px; }
.notice { padding: 18px 20px; background: #edf7f1; border: 1px solid #c8ded1; border-radius: 12px; color: #285a43; margin: 18px 0; }
.notice p { margin: 0; }
.data-list { margin: 0; }
.data-list > div { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 18px; padding: 16px 0; border-top: 1px solid var(--border); }
.data-list > div:first-child { border-top: 0; padding-top: 0; }
.data-list > div:last-child { padding-bottom: 0; }
.data-list dt { color: var(--petrol); font-weight: 700; }
.data-list dd { margin: 0; min-width: 0; }
.contact-card { background: var(--petrol); color: white; }
.contact-card h2 { color: white; }
.contact-card p { color: #e8f1f4; }
.contact-button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 50px; padding: 12px 20px; border-radius: 999px; background: var(--green); color: white; text-decoration: none; font-weight: 700; max-width: 100%; }
.contact-button svg { width: 21px; height: 21px; flex: 0 0 21px; }
.contact-address { display: block; margin: 14px 0 18px; color: white; }
.contact-card a:focus-visible { outline-color: #d9f1ba; }
.support-content { max-width: 850px; margin: 0 auto; }
details { border-top: 1px solid var(--border); padding: 16px 0; }
details:last-child { padding-bottom: 0; }
summary { cursor: pointer; color: var(--petrol); font-weight: 700; }
details p { margin-top: 12px !important; }
.site-footer { max-width: 1100px; margin: auto; border-top: 1px solid var(--border); padding: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px 24px; color: var(--muted); font-size: 13px; }
.site-footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
@media (max-width: 760px) {
  .header-inner { padding: 20px 20px 10px; }
  .logo { width: 200px; font-size: 29px; letter-spacing: -1px; }
  .page-links { column-gap: 20px; margin-top: 10px; font-size: 13px; }
  main { padding: 30px 18px 40px; }
  .page-intro { margin-bottom: 24px; }
  .lead { font-size: 17px; }
  .content-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .contents { position: static; padding: 0 0 14px; border-bottom: 1px solid var(--border); }
  .contents ol { display: flex; flex-wrap: wrap; column-gap: 20px; }
  .contents a { font-size: 13px; }
  .panel { padding: 22px 20px; border-radius: 16px; }
  .panel h2 { font-size: 22px; }
  .data-list > div { grid-template-columns: minmax(0, 1fr); gap: 5px; }
  .site-footer { padding: 22px 18px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }