html { scroll-padding-top: 24px; }

.article { width: min(100%, 760px); }
.article h1 { max-width: 22em; margin-bottom: 28px; }
.intro { margin-bottom: 32px; }
.intro p { line-height: 1.9; }

.article-overview {
  margin: 0 0 60px;
  padding: 24px 28px 26px;
  border: 1px solid #dbe5f1;
  border-radius: 16px;
  background: #fff;
}

.article-overview h2 {
  margin: 0 0 14px;
  color: var(--navy);
  font-size: 19px;
  line-height: 1.45;
}

.overview-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
}

.overview-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 48px;
  padding: 10px 0;
  border-top: 1px solid #d3dfed;
  color: var(--navy);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  text-decoration: none;
}

.overview-links a:hover { color: #b7230f; }
.overview-links a:focus-visible { outline: 2px solid var(--navy); outline-offset: 3px; }
.overview-links a::after {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
  transform: rotate(45deg);
}

.article-section { margin-top: 56px; }
.article-overview + .article-section { margin-top: 0; }
.article-section h2 {
  margin-bottom: 22px;
  padding-top: 24px;
  border-top: 1px solid #ccd8e6;
  font-size: clamp(22px, 2.3vw, 26px);
}

.article-section h3 {
  margin: 34px 0 16px;
  padding: 9px 14px;
  border-radius: 9px;
  background: #edf2f9;
  color: var(--navy);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.6;
}

.article-section h4 {
  margin: 34px 0 16px;
  padding: 0 0 10px;
  border-bottom: 1px solid #dfe5ec;
  color: var(--navy);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.6;
}

.article-section p { color: #26364a; line-height: 1.95; }

.article-section ul {
  margin: 10px 0 24px;
  padding: 16px 22px 16px 42px;
  border: 1px solid #e3e9f0;
  border-radius: 12px;
  background: #fff;
  color: #26364a;
  font-size: 16px;
  line-height: 1.85;
}

.article-section li { padding-left: 3px; margin-bottom: 9px; }
.article-section li:last-child { margin-bottom: 0; }
.article-section li::marker { color: var(--accent); }

.article-section p.topic-label {
  display: table;
  margin: 28px 0 8px;
  padding: 5px 12px;
  border-radius: 8px;
  background: var(--navy);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
}

::selection { background: #dfe9f7; color: var(--navy); }

@media (max-width: 700px) {
  .article { padding-bottom: 72px; }
  .article h1 { margin-bottom: 22px; }
  .intro { margin-bottom: 26px; }
  .article-overview { margin-bottom: 44px; padding: 20px; }
  .overview-links { grid-template-columns: 1fr; }
  .article-section { margin-top: 44px; }
  .article-section h3 { margin-top: 28px; padding: 10px 12px; font-size: 17px; }
  .article-section h4 { margin-top: 28px; font-size: 16px; }
  .article-section ul { padding: 14px 16px 14px 34px; }
}