:root {
  --ink: #23282c;
  --soft: #5b6770;
  --faint: #7f8a92;
  --line: #e3e7ea;
  --line2: #eef1f3;
  --bg: #fbfcfd;
  --accent: #5a7585;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); line-height: 1.75; font-size: 15px; }
.wrap { max-width: 780px; margin: 0 auto; padding: 24px 18px 80px; }
header.site { display: flex; justify-content: space-between; align-items: center; padding: 14px 0; margin-bottom: 18px; border-bottom: 1px solid var(--line); }
header.site .brand { font-weight: 700; font-size: 16px; color: var(--ink); text-decoration: none; }
header.site a.back { font-size: 13px; color: var(--accent); text-decoration: none; }
h1 { font-size: 26px; margin: 14px 0 6px; letter-spacing: -.3px; line-height: 1.35; }
.lead { color: var(--soft); font-size: 14px; margin: 0 0 18px; }
h2 { font-size: 17px; margin: 28px 0 8px; padding-bottom: 6px; border-bottom: 1px solid var(--line); font-weight: 700; line-height: 1.5; }
h3 { font-size: 15px; margin: 18px 0 4px; font-weight: 650; color: var(--ink); }
p { margin: 8px 0 12px; }
ol { margin: 8px 0 12px; padding-left: 1.6em; }
ol li { margin: 7px 0; }
ul { margin: 6px 0 12px; padding-left: 1.4em; }
ul li { margin: 4px 0; }
em { font-style: normal; background: #fff7d6; padding: 0 2px; border-radius: 2px; }
a { color: var(--accent); }
.translation-note { color: var(--soft); background: #f1f5f7; border: 1px solid #dbe4e8; border-radius: 9px; padding: 10px 12px; font-size: 12.5px; margin: 0 0 24px; }
.note { font-size: 12.5px; color: var(--faint); margin-top: 18px; border-top: 1px solid var(--line2); padding-top: 12px; }
.channel, .step { background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; margin: 10px 0; }
.channel h3 { margin-top: 0; }
.channel .badge { display: inline-block; font-size: 11px; padding: 1px 8px; border-radius: 999px; background: #eaf0f3; color: var(--accent); font-weight: 700; margin-left: 6px; vertical-align: middle; }
.urgent, .callout { background: #fff5f3; border: 1px solid #f0d4cd; border-radius: 10px; padding: 12px 14px; color: #7a3a32; font-size: 14px; margin: 14px 0; }
.urgent b, .callout b { color: #5a2620; }
.urgent ul { margin: 6px 0 0; }
.step .num { display: inline-block; width: 24px; height: 24px; line-height: 24px; text-align: center; background: var(--accent); color: #fff; border-radius: 50%; font-weight: 700; font-size: 13px; margin-right: 8px; }
.faq { margin: 14px 0; }
.faq details { border-bottom: 1px solid var(--line2); padding: 10px 0; }
.faq summary { cursor: pointer; font-weight: 650; color: var(--ink); font-size: 15px; list-style: none; }
.faq summary::before { content: "Q. "; color: var(--accent); font-weight: 700; }
.faq summary::-webkit-details-marker { display: none; }
.faq details[open] summary { margin-bottom: 6px; }
.faq .answer { color: var(--soft); font-size: 14px; padding-left: 1.4em; }
.faq .answer::before { content: "A. "; color: var(--accent); font-weight: 700; margin-left: -1.4em; }
footer.site { margin-top: 48px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 13px; color: var(--soft); }
footer.site nav { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 8px; }
footer.site a { color: var(--accent); text-decoration: none; }
footer.site a:hover { text-decoration: underline; }