.page-about {
  background: var(--ink);
  color: var(--bone);
  --about-hair: 1px solid rgba(58, 70, 66, 0.9);
  --about-hair-dark: 1px solid rgba(11, 15, 14, 0.16);
}

.page-about .grid-12 {
  gap: var(--gap);
}

.page-about h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
}

.page-about .about-lead {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: rgba(244, 239, 226, 0.84);
  max-width: 62ch;
  margin: 0 0 18px;
}

.page-about .section--bone {
  color: var(--ink);
}

.page-about .section--bone .kicker {
  color: var(--moss);
}

.page-about .section--bone .about-lead {
  color: #384440;
}

.page-about .section--bone p {
  line-height: 1.75;
}

.page-about .prose p {
  margin: 0 0 14px;
  line-height: 1.8;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 52px) 0 clamp(36px, 6vw, 76px);
  border-bottom: var(--about-hair);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -14%;
  width: min(80%, 840px);
  height: 172%;
  background: linear-gradient(148deg, rgba(23, 232, 138, 0.2) 0%, rgba(47, 123, 255, 0.16) 42%, rgba(11, 15, 14, 0) 72%);
  transform: rotate(-14deg);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--grid) 0 24px, transparent 24px 48px);
}

.page-about .about-hero-grid {
  position: relative;
  display: grid;
  gap: var(--gap);
  align-items: end;
}

.page-about .about-hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 10px 0 16px;
}

.page-about .about-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 24px 0 24px;
  padding-top: 16px;
  border-top: var(--about-hair);
}

.page-about .about-metric .num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1;
  color: var(--race);
}

.page-about .about-metric-label {
  display: block;
  margin-top: 7px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-about .about-hero-media {
  position: relative;
  border: var(--about-hair);
  background: var(--slate);
  overflow: hidden;
}

.page-about .about-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

/* ---------- 旁注 ---------- */
.page-about .about-note {
  border-left: 2px solid var(--moss);
  padding: 6px 0 6px 16px;
  background: linear-gradient(90deg, rgba(47, 107, 79, 0.16), transparent 78%);
}

.page-about .about-note--clay {
  border-left-color: var(--clay);
  background: linear-gradient(90deg, rgba(183, 107, 74, 0.14), transparent 78%);
}

.page-about .about-note-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.04em;
  margin: 0 0 10px;
  color: var(--acid);
}

.page-about .about-note--clay .about-note-title {
  color: var(--clay);
}

.page-about .about-note-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-note-list li {
  font-size: 14px;
  line-height: 1.68;
  color: rgba(244, 239, 226, 0.8);
  padding: 0 0 10px 12px;
  position: relative;
}

.page-about .about-note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  background: var(--grid);
}

.page-about .about-note-list strong {
  color: var(--bone);
  font-weight: 600;
}

.page-about .about-note-tail {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  margin: 6px 0 0;
}

/* ---------- 团队 ---------- */
.page-about .about-team-grid {
  display: grid;
  gap: var(--gap);
  margin-top: 22px;
}

.page-about .about-team-media {
  border: var(--about-hair-dark);
  overflow: hidden;
  background: rgba(11, 15, 14, 0.08);
}

.page-about .about-team-media img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-about .about-role {
  background: var(--ink);
  color: var(--bone);
  border: 1px solid var(--ink);
  margin-bottom: 10px;
}

.page-about .about-role summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.page-about .about-role summary::-webkit-details-marker {
  display: none;
}

.page-about .about-role summary:focus-visible {
  outline: 2px solid var(--race);
  outline-offset: -3px;
}

.page-about .about-role summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--race);
}

.page-about .about-role[open] summary::after {
  content: "\2212";
}

.page-about .about-role-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 24px;
  line-height: 1;
  color: var(--race);
}

.page-about .about-role-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.02em;
}

.page-about .about-role-body {
  padding: 0 16px 16px;
  border-top: 1px solid rgba(58, 70, 66, 0.7);
}

.page-about .about-role-body p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 239, 226, 0.82);
}

/* ---------- 覆盖范围 ---------- */
.page-about .about-sports {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 16px 0 22px;
  padding: 0;
}

.page-about .about-sport {
  border: 1px solid var(--grid);
  padding: 6px 12px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--bone);
}

.page-about .about-quote-card {
  border-left: 3px solid var(--flame);
  background: var(--slate);
  padding: 16px 18px;
}

.page-about .about-quote-text {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 239, 226, 0.86);
}

.page-about .about-quote-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--acid);
}

.page-about .about-coverage-media {
  border: var(--about-hair);
  overflow: hidden;
  background: var(--slate);
}

.page-about .about-coverage-media img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 12 / 8;
  object-fit: cover;
}

/* ---------- 流程 ---------- */
.page-about .about-steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: var(--about-hair-dark);
}

.page-about .about-step {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: var(--about-hair-dark);
}

.page-about .about-step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--clay);
}

.page-about .about-step-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  line-height: 1.2;
  margin: 0;
}

.page-about .about-step-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #29332F;
}

/* ---------- 版本时间线 ---------- */
.page-about .about-tl {
  list-style: none;
  margin: 26px 0 0;
  padding: 0 0 0 24px;
  border-left: 1px solid var(--grid);
}

.page-about .about-tl-item {
  position: relative;
  padding-bottom: 18px;
}

.page-about .about-tl-item::before {
  content: "";
  position: absolute;
  left: -29px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--race);
}

.page-about .about-tl-mark {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--signal);
  margin-bottom: 6px;
}

.page-about .about-tl-body {
  border: 1px solid var(--grid);
  background: var(--slate);
}

.page-about .about-tl-body summary {
  padding: 12px 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--bone);
  cursor: pointer;
  list-style: none;
}

.page-about .about-tl-body summary::-webkit-details-marker {
  display: none;
}

.page-about .about-tl-body summary:focus-visible {
  outline: 2px solid var(--race);
  outline-offset: -3px;
}

.page-about .about-tl-body[open] summary {
  border-bottom: 1px solid rgba(58, 70, 66, 0.7);
  color: var(--race);
}

.page-about .about-tl-body p {
  margin: 0;
  padding: 12px 16px 16px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 239, 226, 0.82);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partner-grid {
  display: grid;
  gap: var(--gap);
  margin: 22px 0 26px;
}

.page-about .about-partner-card {
  background: var(--ink);
  color: var(--bone);
  padding: 18px;
  border-top: 2px solid var(--race);
}

.page-about .about-partner-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--acid);
}

.page-about .about-partner-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  margin: 0 0 8px;
  color: var(--bone);
}

.page-about .about-partner-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 239, 226, 0.8);
}

.page-about .about-series {
  border-top: var(--about-hair-dark);
  padding-top: 18px;
}

.page-about .about-series-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.04em;
  margin: 0 0 12px;
}

.page-about .about-series-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-series-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 15px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(11, 15, 14, 0.18);
}

.page-about .about-series-list .num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--clay);
}

/* ---------- 联系 ---------- */
.page-about .about-contact {
  border-top: var(--about-hair);
}

.page-about .about-contact p {
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 239, 226, 0.84);
  max-width: 58ch;
  margin: 0 0 18px;
}

.page-about .about-contact-card {
  background: var(--slate);
  border: 1px solid var(--grid);
  padding: 18px;
}

.page-about .about-contact-card .about-note-title {
  color: var(--race);
}

.page-about .about-contact-row {
  display: grid;
  gap: 2px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(58, 70, 66, 0.7);
}

.page-about .about-contact-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-contact-row .contact-label {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-about .about-contact-row .contact-value {
  font-size: 14px;
  line-height: 1.6;
  color: var(--bone);
  word-break: break-word;
}

@media (min-width: 760px) {
  .page-about .about-step {
    grid-template-columns: 64px minmax(0, 200px) minmax(0, 1fr);
    align-items: baseline;
    gap: 24px;
  }

  .page-about .about-partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-series-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 24px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(24px, 4vw, 52px);
  }

  .page-about .about-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-team-grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-about .about-roles {
    display: grid;
    gap: 10px;
  }

  .page-about .about-role {
    margin-bottom: 0;
  }
}

@media (max-width: 520px) {
  .page-about .about-role summary {
    grid-template-columns: auto minmax(0, 1fr) auto;
    row-gap: 4px;
  }

  .page-about .about-role summary .tag {
    grid-column: 2 / 3;
    justify-self: start;
  }

  .page-about .about-metrics {
    gap: 12px;
  }
}
<<<END>>>