/* 支持页专用样式，联系页沿用原有公共布局。 */
.support-preview .local-page .content {
  grid-template-columns: minmax(0, .95fr) minmax(0, 1.65fr);
  gap: 28px;
  padding-bottom: 24px;
}
.support-preview .support-methods {
  border-left: 1px solid var(--line);
  padding-left: 28px;
  min-width: 0;
}
.support-preview .purpose { border-left: 0; padding-left: 0; }
.support-preview .purpose-list { margin-top: 16px; }
.support-preview .purpose-list li { padding: 18px 0; }
.support-preview .local-page .purpose-list h3 { font-size: 1.5rem; margin-bottom: 8px; }
.support-preview .purpose-list p, .support-preview .section-sub { font-size: 1.0625rem; line-height: 1.8; }
.support-preview .github-support {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px 20px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel);
  padding: 24px;
  margin-top: 20px;
}
.support-preview .github-mark { width: 56px; height: 56px; color: var(--text); }
.support-preview .local-page .github-copy h3 { margin: 0 0 8px; font-size: 1.5rem; }
.support-preview .github-summary { margin: 0 0 8px; font-size: 1.0625rem; line-height: 1.5; }
.support-preview .github-detail { color: var(--muted); margin: 0; font-size: .9375rem; line-height: 1.7; }
.support-preview .github-support-link {
  grid-column: 1 / -1;
  display: inline-flex;
  justify-self: center;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--blue);
  border-radius: 7px;
  color: var(--blue);
  font-weight: 700;
  line-height: 1.5;
  transition: background-color .15s ease;
}
.support-preview .github-support-link svg { width: 18px; height: 18px; flex: none; }
.support-preview .github-support-link:hover { background: color-mix(in srgb, var(--blue) 10%, transparent); }
.support-preview .github-support-link:focus-visible { outline: 2px solid var(--blue); outline-offset: 4px; }
@media (min-width: 1100px) {
  .support-preview .github-support { grid-template-columns: 56px minmax(0, 1fr) auto; }
  .support-preview .github-support-link { grid-column: 3; justify-self: end; white-space: nowrap; }
}
@media (max-width: 900px) {
  .support-preview .local-page .content { grid-template-columns: 1fr; gap: 24px; }
  .support-preview .support-methods { border-left: 0; border-top: 1px solid var(--line); padding: 20px 0 0; }
}
@media (max-width: 480px) {
  .support-preview .github-support { grid-template-columns: 40px minmax(0, 1fr); padding: 18px; gap: 16px; }
  .support-preview .github-mark { width: 40px; height: 40px; }
  .support-preview .local-page .github-copy h3 { font-size: 1.25rem; }
  .support-preview .github-support-link { grid-column: 1 / -1; justify-self: stretch; }
}
@media (prefers-reduced-motion: reduce) {
  .support-preview .github-support-link { transition: none; }
}