/* Shared header geometry and controls for the works and about pages. */
.site-header {
  --header-ink: #1a1a1a;
  --header-pill: rgba(26, 26, 26, .06);
  --header-hover: #f3ede4;
  --header-button: #1a1a1a;
  --header-button-ink: #f3ede4;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  min-height: 108px;
  padding: 18px var(--gutter);
}
.site-header--dark {
  --header-ink: #f3ede4;
  --header-pill: rgba(243, 237, 228, .09);
  --header-hover: rgba(243, 237, 228, .12);
  --header-button: #f3ede4;
  --header-button-ink: #1a1a1a;
}
.site-header > :first-child { justify-self: start; }
.site-header .site-header-links {
  display: flex;
  justify-self: center;
  align-items: center;
  gap: 6px;
  padding: 5px;
  border-radius: 999px;
  background: var(--header-pill);
  pointer-events: auto;
  mask-image: none;
  -webkit-mask-image: none;
}
.site-header .site-header-links > :is(a, button) {
  appearance: none;
  display: block;
  position: relative;
  flex: none;
  border: 0;
  border-radius: 999px;
  padding: 7px 14px;
  background: transparent;
  color: var(--header-ink);
  font: 400 14px/1.5 var(--sans);
  letter-spacing: 0;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background .2s;
}
.site-header .site-header-links > a::after { content: none; }
.site-header .site-header-links > :is(a, button):hover,
.site-header .site-header-links > a.on { background: var(--header-hover); }
.site-header .site-header-cta {
  justify-self: end;
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border: 0;
  border-radius: 999px;
  background: var(--header-button);
  color: var(--header-button-ink);
  font: 400 14px/1.5 var(--sans);
  letter-spacing: 0;
  text-decoration: none;
  white-space: nowrap;
}
.site-header :is(a, button):focus-visible {
  outline: 2px solid var(--header-ink);
  outline-offset: 4px;
}
@media (max-width: 1000px) {
  .site-header {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px 16px;
    min-height: 0;
    padding-block: 14px;
  }
  .site-header .site-header-links {
    grid-column: 1 / -1;
    grid-row: 2;
    max-width: 100%;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .site-header .site-header-links::-webkit-scrollbar { display: none; }
  .site-header .site-header-cta { grid-column: 2; grid-row: 1; }
}
@media (max-width: 600px) {
  .site-header .site-header-links { gap: 2px; padding: 4px; }
  .site-header .site-header-links > :is(a, button) { font-size: 12px; padding: 7px 10px; }
  .site-header .site-header-cta { font-size: 12px; padding: 8px 12px; }
}

/* 2026-10-28：指定页面复用紧凑品牌变体，原图、字样与动效一起等比缩至 80%。 */
.site-header--compact-brand > :first-child { zoom: .8; }
/* 与作品原页一致的左右留白；仅由需要统一边距的页面启用。 */
:root { --site-standard-gutter: clamp(16px, 4vw, 56px); }
.site-standard-margins { --gutter: var(--site-standard-gutter); }
.site-standard-margins .m-future .fu-s0-stick { padding-inline: var(--gutter); }