/* The map is a reading guide: keep its title, chapter names, and links legible. */
.home-hero {
  align-items: center;
  gap: 48px;
  padding: 24px 0 29px;
}

.home-hero h1 {
  font-size: clamp(43px, 5.3vw, 68px);
  font-weight: 700;
}

.definition {
  max-width: 730px;
  color: #36516a;
  font-size: 17px;
  line-height: 1.55;
}

.definition > strong {
  display: block;
  margin-bottom: 6px;
  color: var(--navy);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.3;
}

.hero-side { margin-bottom: 0; }
.hero-side strong { font-size: 25px; font-weight: 700; }
.hero-side p { font-size: 14px; }

.guide-inner {
  min-height: 58px;
  gap: 25px;
  font-size: 14px;
}

.guide-inner > span { font-size: 12px; }
.guide-inner a { display: inline-flex; align-items: center; padding: 10px 0; }
.guide-inner a b { font-size: 12px; }
.guide-inner .faq-nav {
  padding-left: 23px;
  border-left: 1px solid var(--line);
  color: var(--red);
  font-weight: 800;
}

.home-grid { grid-template-columns: 205px minmax(0, 1fr); gap: 32px; }
.rail { top: 12px; }
.rail .rail-title { font-size: 12px; }
.rail-group > a { font-size: 14px; }
.rail-group p { font-size: 12px; line-height: 1.5; }
.legend { font-size: 11px; }
.group-heading h2 { font-size: 30px; font-weight: 700; }
.group-heading p { font-size: 14px; }
.topic { min-height: 153px; }
.topic h3 { font-size: 21px; font-weight: 700; line-height: 1.24; }
.topic p { font-size: 14px; line-height: 1.48; }
.topic-meta { font-size: 11px; }
.topic-code { font-size: 12px; }
.topic-status { font-size: 10px; }
.topic-end, .paired-links { font-size: 12px; }
.row-topic, .nobel-topic { min-height: 92px; }
.system-topic { min-height: 0; }
.science-link strong { font-size: 14px; }
.science-link small { font-size: 12px; }

.faq-entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 32px;
  padding: 22px 26px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  border-radius: var(--radius);
  background: var(--wash);
}

.faq-entry h2 { margin: 0 0 5px; color: var(--navy); font-size: 23px; }
.faq-entry p { margin: 0; color: var(--muted); font-size: 14px; }
.faq-entry a {
  flex: 0 0 auto;
  padding: 11px 15px;
  border-radius: 5px;
  background: var(--navy);
  color: white;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}
.faq-entry a:hover { background: var(--deep); color: white; }

@media (max-width: 1000px) {
  .home-hero { gap: 30px; }
  .guide-inner { gap: 14px; }
  .home-grid { grid-template-columns: 170px minmax(0, 1fr); gap: 22px; }
}

@media (max-width: 760px) {
  .home-hero { padding: 17px 0 25px; }
  .home-hero h1 { font-size: 43px; }
  .definition { font-size: 16px; }
  .definition > strong { font-size: 19px; }
  .hero-side { margin-top: 20px; }
  .hero-side strong { font-size: 21px; }
  .hero-side p { font-size: 13px; }
  .guide-inner {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2px 8px;
    padding: 5px 0;
    font-size: 13px;
  }
  .guide-inner a { justify-content: center; min-height: 40px; padding: 6px 0; }
  .guide-inner .faq-nav { padding: 6px 0; border: 0; }
  .group-heading h2 { font-size: 28px; }
  .group-heading p { font-size: 13px; }
  .topic { min-height: 0; }
  .topic h3 { font-size: 20px; }
  .topic p { font-size: 14px; }
  .topic-end { font-size: 12px; }
  .faq-entry { display: block; padding: 19px; }
  .faq-entry a { display: inline-block; margin-top: 15px; }
}