.page-about {
  --about-rule: rgba(46, 66, 102, 0.22);
  --about-rule-dark: rgba(244, 237, 225, 0.22);
  --about-shadow: 8px 8px 0 rgba(16, 25, 43, 0.10);
  --about-pad: clamp(48px, 7vw, 88px);

  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumb {
  padding-top: clamp(14px, 2vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-top: clamp(18px, 3vw, 32px);
  padding-bottom: clamp(36px, 5vw, 64px);
}

.page-about .about-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 46px);
  align-items: end;
}

.page-about .about-hero__copy { min-width: 0; }

.page-about .about-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink-900);
  max-width: 11em;
}

.page-about .about-hero__lead {
  margin: 18px 0 0;
  max-width: 32em;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--text);
}

.page-about .about-stats {
  list-style: none;
  margin: clamp(24px, 3.6vw, 38px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-rule);
  border-top: 1px solid var(--about-rule);
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-stat {
  background: var(--paper);
  padding: 16px 12px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .about-stat::before {
  content: "";
  display: block;
  width: 20px;
  height: 3px;
  background: var(--mint);
  border-radius: 2px;
}

.page-about .about-stat:nth-child(2)::before { background: var(--amber); }
.page-about .about-stat:nth-child(3)::before { background: var(--indigo); }
.page-about .about-stat:nth-child(4)::before { background: var(--red); }

.page-about .about-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(36px, 5.6vw, 56px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--ink-900);
}

.page-about .about-stat__label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-700);
}

.page-about .about-hero__media {
  position: relative;
  isolation: isolate;
  margin: 0;
  padding: 0 10px 10px 0;
}

.page-about .about-hero__media::before {
  content: "";
  position: absolute;
  inset: 20px -10px -10px 20px;
  background: var(--ink-800);
  clip-path: polygon(0 0, 100% 5%, 100% 100%, 0 100%);
  border-radius: 6px;
  z-index: -1;
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 4px;
  clip-path: polygon(0 0, 100% 0, 100% 90%, 10% 100%);
}

.page-about .about-hero__media .media-frame__caption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-700);
}

@media (min-width: 920px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 章节索引条 ---------- */
.page-about .about-index {
  position: sticky;
  top: var(--top-h);
  z-index: 20;
  background: var(--paper-2);
  border-top: 1px solid var(--about-rule);
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-index__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 8px;
  padding-bottom: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-index__inner::-webkit-scrollbar {
  display: none;
}

.page-about .about-index__label {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-700);
  padding-right: 12px;
  border-right: 1px solid var(--about-rule);
}

.page-about .about-index__list {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-index__list a {
  display: inline-block;
  white-space: nowrap;
  padding: 6px 12px;
  font-size: 13px;
  color: var(--text);
  text-decoration: none;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-about .about-index__list a:hover,
.page-about .about-index__list a:focus-visible {
  border-color: var(--mint-deep);
  color: var(--mint-deep);
}

/* ---------- 通用章节标题 ---------- */
.page-about .about-head {
  max-width: 42em;
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-about .about-head h2,
.page-about .about-origin h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 36px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--ink-900);
}

.page-about .about-head__lead {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--text);
}

.page-about .prose {
  margin: 0 0 1.1em;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text);
}

.page-about .prose:last-child { margin-bottom: 0; }

/* ---------- 01 起点 ---------- */
.page-about .about-origin {
  padding-top: var(--about-pad);
  padding-bottom: var(--about-pad);
}

.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
}

.page-about .about-origin__body { min-width: 0; }

.page-about .about-scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(24px, 3vw, 36px);
}

.page-about .about-scene {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 16px 16px;
  background: var(--paper-2);
  border: 1px solid var(--about-rule);
  border-radius: 4px 16px 4px 4px;
}

.page-about .about-scene::before {
  content: "";
  position: absolute;
  top: 0;
  left: 16px;
  width: 36px;
  height: 3px;
  background: var(--mint);
  border-radius: 0 0 3px 3px;
}

.page-about .about-scene:nth-child(2)::before { background: var(--amber); }
.page-about .about-scene:nth-child(3)::before { background: var(--red); }

.page-about .about-scene h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink-900);
}

.page-about .about-scene p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
}

.page-about .about-scene__link {
  margin-top: auto;
  padding-top: 10px;
  align-self: flex-start;
  font-size: 13px;
  font-weight: 700;
  color: var(--mint-deep);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}

.page-about .about-scene__link:hover,
.page-about .about-scene__link:focus-visible {
  color: var(--ink-900);
}

@media (min-width: 720px) {
  .page-about .about-scene-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-scene {
    box-shadow: var(--about-shadow);
  }
}

@media (min-width: 900px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-about .about-origin .about-head {
    margin-bottom: 0;
    position: sticky;
    top: calc(var(--top-h) + 64px);
  }
}

/* ---------- 02 团队标签页 ---------- */
.page-about .about-team {
  padding-top: var(--about-pad);
  padding-bottom: var(--about-pad);
  background: var(--paper-2);
  border-top: 1px solid var(--about-rule);
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  padding: 0;
  border: 0;
}

.page-about .about-tabs .tab {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 16px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-700);
  background: var(--paper);
  border: 1px solid var(--about-rule);
  border-radius: 4px 12px 4px 4px;
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-about .about-tabs .tab .mono {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.page-about .about-tabs .tab:hover {
  border-color: var(--mint-deep);
}

.page-about .about-tabs .tab[aria-selected="true"] {
  background: var(--ink-900);
  border-color: var(--ink-900);
  color: var(--paper);
}

.page-about .about-tabs .tab[aria-selected="true"] .mono {
  color: var(--mint);
}

.page-about .about-tabs .tab[aria-selected="true"]:hover {
  border-color: var(--ink-900);
}

.page-about .about-panel {
  padding: clamp(20px, 3vw, 30px) clamp(18px, 3vw, 32px);
  background: var(--paper);
  border: 1px solid var(--about-rule);
  border-left: 4px solid var(--mint);
  border-radius: 0 16px 4px 0;
}

.page-about .about-panel[hidden] { display: none; }

.page-about .about-panel h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--ink-900);
}

.page-about .about-panel p {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-about .about-panel ul {
  margin: 16px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.page-about .about-panel li {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-about .about-panel li::marker {
  color: var(--mint-deep);
}

/* ---------- 03 覆盖 ---------- */
.page-about .about-coverage {
  position: relative;
  padding-top: var(--about-pad);
  padding-bottom: var(--about-pad);
  background: var(--ink-900);
  color: var(--paper);
  overflow: hidden;
}

.page-about .about-coverage::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(244, 237, 225, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(244, 237, 225, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.page-about .about-coverage::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--mint), rgba(18, 196, 160, 0) 70%);
}

.page-about .about-coverage__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-about .about-coverage__text { min-width: 0; }

.page-about .about-coverage .eyebrow {
  color: var(--mint);
}

.page-about .about-coverage h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 36px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-about .about-coverage p {
  margin: 16px 0 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(244, 237, 225, 0.88);
}

.page-about .about-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 20px 0 0;
  border-top: 1px dashed var(--about-rule-dark);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(84px, 1fr));
  gap: 10px 12px;
}

.page-about .about-points li {
  position: relative;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(244, 237, 225, 0.78);
  padding-left: 12px;
  transition: color 0.18s var(--ease);
}

.page-about .about-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(244, 237, 225, 0.35);
}

.page-about .about-points li.is-node {
  color: var(--paper);
  font-weight: 700;
}

.page-about .about-points li.is-node::before {
  width: 7px;
  height: 7px;
  top: 5px;
  background: var(--mint);
  box-shadow: 0 0 0 3px rgba(18, 196, 160, 0.18);
}

.page-about .about-points li:hover {
  color: var(--amber);
}

.page-about .about-coverage__note {
  margin-top: 18px;
  padding-left: 14px;
  border-left: 2px solid var(--amber);
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(244, 237, 225, 0.82);
}

.page-about .about-coverage__media {
  margin: 0;
  min-width: 0;
}

.page-about .about-coverage__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px;
  clip-path: polygon(0 4%, 100% 0, 100% 96%, 0 100%);
}

.page-about .about-coverage__media .media-frame__caption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(244, 237, 225, 0.65);
}

@media (min-width: 900px) {
  .page-about .about-coverage__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }
}

/* ---------- 04 版本时间线 ---------- */
.page-about .about-versions {
  padding-top: var(--about-pad);
  padding-bottom: var(--about-pad);
}

.page-about .about-version-figure {
  margin: 0 0 clamp(28px, 4vw, 44px);
}

.page-about .about-version-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--about-rule);
}

.page-about .about-version-figure .media-frame__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-700);
}

.page-about .version-track {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 28px;
  display: grid;
  gap: 12px;
}

.page-about .version-track::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(to bottom, var(--mint), var(--amber) 55%, rgba(46, 66, 102, 0.28));
}

.page-about .version-node {
  position: relative;
  min-width: 0;
}

.page-about .version-node::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 17px;
  width: 12px;
  height: 12px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--mint-deep);
  z-index: 1;
}

.page-about .version-node.is-current::before {
  background: var(--mint);
  border-color: var(--mint);
  box-shadow: 0 0 0 5px rgba(18, 196, 160, 0.16);
}

.page-about .version-node .disclose {
  border: 1px solid var(--about-rule);
  border-radius: 4px 14px 4px 4px;
  background: var(--paper);
  overflow: hidden;
}

.page-about .version-node.is-current .disclose {
  border-color: rgba(18, 196, 160, 0.5);
  background: var(--paper);
}

.page-about .version-node .disclose__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--text);
}

.page-about .version-node .disclose__summary::-webkit-details-marker {
  display: none;
}

.page-about .version-node .disclose__summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--mint-deep);
}

.page-about .version-node .disclose[open] .disclose__summary::after {
  content: "\2212";
}

.page-about .version-node .disclose__summary .mono {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--paper);
  background: var(--ink-900);
  padding: 3px 8px;
  border-radius: 3px;
}

.page-about .version-node.is-current .disclose__summary .mono {
  background: var(--amber);
  color: var(--ink-900);
}

.page-about .version-node .disclose__body {
  padding: 0 16px 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text);
}

.page-about .version-node .disclose__body p {
  margin: 0;
  max-width: 36em;
}

.page-about .version-fields {
  margin: 14px 0 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--about-rule);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
}

.page-about .version-fields dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  line-height: 1.9;
  color: var(--ink-700);
  white-space: nowrap;
}

.page-about .version-fields dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

@media (min-width: 720px) {
  .page-about .version-track {
    padding-left: 34px;
  }

  .page-about .version-track::before { left: 9px; }

  .page-about .version-node::before {
    left: -31px;
    top: 19px;
    width: 14px;
    height: 14px;
  }

  .page-about .version-node .disclose__summary {
    font-size: 16.5px;
    padding: 16px 20px;
  }

  .page-about .version-node .disclose__body {
    padding: 0 20px 20px;
  }
}

@media (max-width: 520px) {
  .page-about .version-fields {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .page-about .version-fields dd {
    margin-bottom: 8px;
  }
}

/* ---------- 05 板块 ---------- */
.page-about .about-sections {
  padding-top: var(--about-pad);
  padding-bottom: var(--about-pad);
  background: var(--paper-2);
  border-top: 1px solid var(--about-rule);
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-cat-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-about .about-cat {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 18px 22px;
  background: var(--paper);
  border-top: 3px solid var(--mint);
  border-radius: 0 0 4px 4px;
  box-shadow: 4px 4px 0 rgba(16, 25, 43, 0.06);
}

.page-about .about-cat:nth-child(2) { border-top-color: var(--amber); }
.page-about .about-cat:nth-child(3) { border-top-color: var(--indigo); }

.page-about .about-cat .mono {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ink-700);
}

.page-about .about-cat h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--ink-900);
}

.page-about .about-cat p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text);
}

.page-about .about-cat__link {
  margin-top: auto;
  padding-top: 8px;
  align-self: flex-start;
  font-size: 13px;
  font-weight: 700;
  color: var(--mint-deep);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}

.page-about .about-cat__link:hover,
.page-about .about-cat__link:focus-visible {
  color: var(--ink-900);
}

@media (min-width: 780px) {
  .page-about .about-cat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ---------- 06 合作 ---------- */
.page-about .about-partners {
  padding-top: var(--about-pad);
  padding-bottom: var(--about-pad);
}

.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-about .about-partner-card {
  position: relative;
  padding: 24px 20px 26px;
  background: var(--paper);
  border: 1px solid var(--about-rule);
  border-radius: 4px 20px 4px 4px;
}

.page-about .about-partner-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20px;
  width: 48px;
  height: 3px;
  background: var(--indigo);
}

.page-about .about-partner-card:nth-child(2)::before {
  background: var(--amber);
}

.page-about .about-partner-card__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(34px, 4.6vw, 44px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--indigo);
}

.page-about .about-partner-card:nth-child(2) .about-partner-card__num {
  color: var(--mint-deep);
}

.page-about .about-partner-card h3 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--ink-900);
}

.page-about .about-partner-card p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text);
}

@media (min-width: 820px) {
  .page-about .about-partners__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(20px, 3vw, 36px);
  }

  .page-about .about-partner-card {
    box-shadow: var(--about-shadow);
  }

  .page-about .about-partner-card:nth-child(2) {
    transform: translateY(18px);
  }
}

/* ---------- 收尾行动区 ---------- */
.page-about .about-cta {
  position: relative;
  padding-top: clamp(42px, 6vw, 68px);
  padding-bottom: clamp(42px, 6vw, 68px);
  background: var(--ink-800);
  color: var(--paper);
  overflow: hidden;
}

.page-about .about-cta::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--mint), var(--amber) 62%, var(--red));
}

.page-about .about-cta::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 320px;
  height: 220px;
  background: radial-gradient(circle at 30% 70%, rgba(18, 196, 160, 0.22), rgba(18, 196, 160, 0) 65%);
  pointer-events: none;
}

.page-about .about-cta .container {
  position: relative;
}

.page-about .about-cta h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-about .about-cta p {
  margin: 14px 0 0;
  max-width: 32em;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(244, 237, 225, 0.86);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-cta .btn--outline {
  border-color: rgba(244, 237, 225, 0.42);
  color: var(--paper);
}

.page-about .about-cta .btn--outline:hover,
.page-about .about-cta .btn--outline:focus-visible {
  border-color: var(--mint);
  color: var(--mint);
}

/* ---------- 焦点可见性 ---------- */
.page-about a:focus-visible,
.page-about button:focus-visible,
.page-about summary:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition: none !important;
    animation: none !important;
  }

  .page-about .about-partner-card:nth-child(2) {
    transform: none;
  }
}
<<<PAGE_CSS_END>>>