:root {
  color-scheme: light;
  --brand: #5b6aed;
  --brand-soft: #f1f2ff;
  --text: #22242a;
  --muted: #626773;
  --line: #e5e7ec;
  --surface: #ffffff;
  --background: #f6f7f9;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, "Malgun Gothic", sans-serif;
  line-height: 1.75;
  word-break: keep-all;
}
a { color: var(--brand); }
a:hover { text-decoration-thickness: 2px; }

.info-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
}
.info-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1060px, calc(100% - 36px));
  min-height: 66px;
  margin: 0 auto;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 17px;
  font-weight: 800;
  text-decoration: none;
}
.brand img { width: 84px; height: auto; display: block; }
.info-nav { display: flex; align-items: center; gap: 18px; }
.info-nav a { color: #555b67; font-size: 13px; font-weight: 650; text-decoration: none; }
.info-nav a:hover, .info-nav a[aria-current="page"] { color: var(--brand); }
.home-link {
  padding: 7px 12px;
  border: 1px solid #dfe1f3;
  border-radius: 8px;
  background: var(--brand-soft);
}

.info-main {
  width: min(920px, calc(100% - 36px));
  margin: 0 auto;
  padding: 66px 0 80px;
}
.hero { margin-bottom: 44px; }
.eyebrow {
  margin: 0 0 8px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
h1 { margin: 0 0 16px; font-size: clamp(32px, 5vw, 48px); line-height: 1.25; letter-spacing: -0.035em; }
.lead { max-width: 760px; margin: 0; color: #505662; font-size: 17px; line-height: 1.85; }
.updated { margin-top: 16px; color: #868b95; font-size: 12px; }

.toc {
  margin: 28px 0 42px;
  padding: 20px 22px;
  border: 1px solid #dfe2f4;
  border-radius: 12px;
  background: var(--brand-soft);
}
.toc strong { display: block; margin-bottom: 8px; font-size: 13px; }
.toc ol { display: flex; flex-wrap: wrap; gap: 7px 24px; margin: 0; padding-left: 20px; }
.toc a { color: #4d58c8; font-size: 13px; }

.content-section {
  margin-top: 26px;
  padding: 30px 32px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: 0 4px 18px rgba(25, 31, 54, 0.035);
}
.content-section h2 { margin: 0 0 14px; font-size: 23px; line-height: 1.4; letter-spacing: -0.02em; }
.content-section h3 { margin: 26px 0 8px; font-size: 17px; }
.content-section p { margin: 10px 0; color: #454b56; }
.content-section ul, .content-section ol { margin: 12px 0; padding-left: 24px; color: #454b56; }
.content-section li + li { margin-top: 8px; }

.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 18px; }
.feature-card { padding: 20px; border: 1px solid var(--line); border-radius: 12px; background: #fafbfc; }
.feature-card h3 { margin: 0 0 7px; font-size: 16px; }
.feature-card p { margin: 0; color: var(--muted); font-size: 14px; }

.criteria-table { width: 100%; margin-top: 16px; border-collapse: collapse; font-size: 14px; }
.criteria-table th, .criteria-table td { padding: 13px 14px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.criteria-table th { width: 28%; background: #f6f7fa; color: #343944; }
.criteria-table td { color: #505662; }

.note {
  margin: 20px 0 0;
  padding: 16px 18px;
  border-left: 4px solid var(--brand);
  border-radius: 0 8px 8px 0;
  background: var(--brand-soft);
  color: #4c5362;
  font-size: 14px;
}
.warning { border-left-color: #d98a2b; background: #fff7ea; }
.contact-box { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 18px; padding: 18px 20px; border-radius: 12px; background: #f7f7fa; }
.contact-box p { margin: 0; }
.contact-box a { flex-shrink: 0; padding: 8px 13px; border-radius: 8px; background: var(--brand); color: #fff; font-weight: 700; text-decoration: none; }

.info-footer { border-top: 1px solid var(--line); background: #fff; }
.info-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(1060px, calc(100% - 36px));
  margin: 0 auto;
  padding: 24px 0 30px;
  color: #747985;
  font-size: 12px;
}
.info-footer nav { display: flex; flex-wrap: wrap; gap: 14px; }
.info-footer a { color: #5c626e; text-decoration: none; }
.info-footer a:hover { color: var(--brand); text-decoration: underline; }

@media (max-width: 720px) {
  body { word-break: normal; }
  .info-header-inner { align-items: flex-start; flex-direction: column; gap: 8px; padding: 12px 0; }
  .info-nav { width: 100%; gap: 14px; overflow-x: auto; padding-bottom: 2px; }
  .info-nav a { flex-shrink: 0; }
  .info-main { padding: 44px 0 60px; }
  .hero { margin-bottom: 30px; }
  .lead { font-size: 15px; }
  .toc ol { display: block; }
  .toc li + li { margin-top: 5px; }
  .content-section { padding: 23px 20px; }
  .feature-grid { grid-template-columns: 1fr; }
  .criteria-table, .criteria-table tbody, .criteria-table tr, .criteria-table th, .criteria-table td { display: block; width: 100%; }
  .criteria-table tr + tr { margin-top: 10px; }
  .criteria-table td { border-top: 0; }
  .contact-box { align-items: flex-start; flex-direction: column; }
  .info-footer-inner { align-items: flex-start; flex-direction: column; }
}