.page-about {
  --about-pad: clamp(26px, 4vw, 54px);
  --about-gap: clamp(20px, 3.4vw, 36px);
  --about-card-line: rgba(214, 169, 76, .34);
  background: var(--indigo);
  color: var(--wool);
  overflow-x: hidden;
}

/* ---------- 章节浮标 ---------- */
.page-about .about-jump {
  display: none;
}
@media (min-width: 1180px) {
  .page-about .about-jump {
    position: fixed;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 6;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .page-about .about-jump a {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 4px 8px 4px 0;
    font-size: 11px;
    letter-spacing: .18em;
    color: var(--text-dim-2);
    text-decoration: none;
    border-left: 1px solid var(--line-gold);
    padding-left: 10px;
    transition: color .18s var(--ease), border-color .18s var(--ease);
  }
  .page-about .about-jump a span {
    font-family: var(--font-mono);
    color: var(--gold);
  }
  .page-about .about-jump a:hover,
  .page-about .about-jump a:focus-visible {
    color: var(--gold-bright);
    border-left-color: var(--gold-bright);
  }
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-block: clamp(20px, 3vw, 34px) clamp(40px, 6vw, 76px);
  isolation: isolate;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(214, 169, 76, .16) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: .5;
  z-index: -1;
  pointer-events: none;
}
.page-about .about-hero__grid {
  display: grid;
  gap: var(--about-gap);
  margin-top: clamp(22px, 4vw, 40px);
}
.page-about .about-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(2rem, 6.4vw, 3.5rem);
  line-height: 1.16;
  letter-spacing: -.01em;
}
.page-about .about-hero__lede {
  margin-top: 18px;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--text-dim);
  max-width: 60ch;
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 16px;
  margin: clamp(26px, 4vw, 40px) 0 0;
}
.page-about .about-stat {
  border-top: 1px solid var(--line-gold);
  padding-top: 10px;
}
.page-about .about-stat__label {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--text-dim-2);
}
.page-about .about-stat__num {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3.2vw, 1.75rem);
  font-weight: 700;
  color: var(--gold-bright);
  line-height: 1.1;
}
.page-about .about-stat__num span {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 400;
  color: var(--text-dim);
  margin-left: 4px;
  letter-spacing: .04em;
}
@media (min-width: 760px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-about .about-hero__figure {
  margin: 0;
}
.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 3px solid rgba(214, 169, 76, .45);
  box-shadow: var(--shadow-hard-sm);
  object-fit: cover;
}
@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-about .about-hero__figure {
    margin-top: clamp(30px, 5vw, 78px);
  }
}

/* ---------- 叙事轴 ---------- */
.page-about .about-flow {
  padding-block: clamp(16px, 2.5vw, 30px) clamp(30px, 5vw, 60px);
}
.page-about .about-chapter {
  position: relative;
  padding-left: var(--about-pad);
  padding-block: clamp(34px, 5vw, 66px);
}
.page-about .about-chapter::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, rgba(214, 169, 76, .1), var(--gold) 12%, rgba(214, 169, 76, .45) 88%, rgba(214, 169, 76, .1));
  opacity: .55;
}
.page-about .about-chapter::after {
  content: "";
  position: absolute;
  left: -5px;
  top: clamp(46px, 6vw, 76px);
  width: 8px;
  height: 8px;
  border: 2px solid var(--gold);
  background: var(--indigo);
  transform: rotate(45deg);
}

.page-about .chapter-no {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 5.4vw, 3rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .04em;
  color: rgba(214, 169, 76, .34);
}
.page-about .chapter-no--ink {
  color: rgba(126, 26, 21, .32);
}
.page-about .about-chapter__body {
  max-width: 74ch;
}
.page-about .about-chapter h2 {
  margin: 0 0 clamp(14px, 2vw, 22px);
}
.page-about .about-chapter__lede {
  margin: 0 0 clamp(22px, 3vw, 34px);
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-dim);
  max-width: 60ch;
}
.page-about .about-prose p {
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--text-dim);
  max-width: 62ch;
  margin: 0 0 16px;
}
.page-about .about-prose p:last-child {
  margin-bottom: 0;
}
.page-about .about-quote {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--cinnabar);
  background: linear-gradient(90deg, rgba(179, 38, 30, .16), rgba(27, 36, 80, 0));
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--wool);
  max-width: 56ch;
}
.page-about .about-tail {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text-dim);
  max-width: 62ch;
}
.page-about .about-tail a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
}
.page-about .about-tail a:hover {
  border-bottom-color: var(--gold-bright);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline-wrap {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 2.2vw, 22px);
}
.page-about .tl-item {
  position: relative;
  padding: 16px 0 16px clamp(16px, 2.4vw, 26px);
  border-left: 1px solid var(--line-gold);
  background: linear-gradient(90deg, rgba(27, 36, 80, .5), rgba(16, 23, 51, 0));
  transition: transform .18s var(--ease), border-color .18s var(--ease);
}
.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 26px;
  width: 7px;
  height: 7px;
  background: var(--gold);
  transform: rotate(45deg);
}
.page-about .tl-item:hover,
.page-about .tl-item:focus-within {
  transform: translateX(4px);
  border-left-color: var(--gold);
}
.page-about .tl-year {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 2.8vw, 1.7rem);
  font-weight: 700;
  color: var(--gold-bright);
  letter-spacing: .06em;
}
.page-about .tl-title {
  margin: 4px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.02rem, 1.7vw, 1.18rem);
  color: var(--wool);
  line-height: 1.5;
}
.page-about .tl-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--text-dim);
  max-width: 58ch;
}
.page-about .tl-extra {
  margin: 10px 0 0;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--gold);
  opacity: .78;
  transition: opacity .18s var(--ease);
}
.page-about .tl-item:hover .tl-extra,
.page-about .tl-item:focus-within .tl-extra {
  opacity: 1;
}
.page-about .about-timeline__figure {
  margin: 0;
  align-self: start;
}
.page-about .about-timeline__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 420px;
  margin-inline: auto;
  border: 3px solid rgba(214, 169, 76, .35);
  box-shadow: var(--shadow-hard-sm);
  object-fit: cover;
}
@media (min-width: 960px) {
  .page-about .about-timeline-wrap {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr);
    align-items: start;
  }
  .page-about .about-timeline__figure {
    margin-top: clamp(20px, 4vw, 56px);
  }
  .page-about .about-timeline__figure img {
    max-width: none;
    margin-inline: 0;
  }
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  display: grid;
  gap: 14px;
}
.page-about .team-card {
  --tc: var(--gold);
  position: relative;
  border: 2px solid var(--about-card-line);
  background: var(--indigo-2);
  box-shadow: var(--shadow-hard-sm);
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}
.page-about .team-card--green { --tc: var(--green); }
.page-about .team-card--blue { --tc: var(--blue); }
.page-about .team-card--cinnabar { --tc: var(--cinnabar); }
.page-about .team-card--gold { --tc: var(--gold); }
.page-about .team-card:hover,
.page-about .team-card[open] {
  border-color: var(--tc);
}
.page-about .team-card summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 16px 16px;
  cursor: pointer;
  list-style: none;
}
.page-about .team-card summary::-webkit-details-marker {
  display: none;
}
.page-about .team-card summary:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 2px;
}
.page-about .team-card__icon {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  color: var(--tc);
  border: 1px solid var(--tc);
  background: rgba(11, 10, 9, .35);
}
.page-about .team-card__icon svg {
  width: 22px;
  height: 22px;
  display: block;
}
.page-about .team-card__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  color: var(--wool);
}
.page-about .team-card__toggle {
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--text-dim-2);
  white-space: nowrap;
}
.page-about .team-card__toggle::after {
  content: "展开";
}
.page-about .team-card[open] .team-card__toggle::after {
  content: "收起";
  color: var(--tc);
}
.page-about .team-card__body {
  padding: 0 16px 18px;
}
.page-about .team-card__summary {
  margin: 0 0 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--line-gold-soft);
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--text-dim);
}
.page-about .team-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.page-about .team-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}
.page-about .team-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--tc);
  transform: rotate(45deg);
}
@media (min-width: 760px) {
  .page-about .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-about .about-collab {
  margin: clamp(26px, 4vw, 42px) 0 0;
}
.page-about .about-collab img {
  display: block;
  width: 100%;
  height: auto;
  border: 3px solid rgba(214, 169, 76, .3);
  box-shadow: var(--shadow-hard-sm);
  object-fit: cover;
}

/* ---------- 服务标准 ---------- */
.page-about .std-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-about .std-row {
  display: grid;
  gap: 6px;
  padding: 16px 16px;
  border: 1px solid var(--line-gold-soft);
  background: linear-gradient(90deg, rgba(27, 36, 80, .92), rgba(16, 23, 51, .55));
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}
.page-about .std-row:hover {
  border-color: var(--line-gold);
  transform: translateY(-3px);
}
.page-about .std-key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--gold);
}
.page-about .std-val {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--text-dim);
  max-width: 56ch;
}
.page-about .std-row .tag {
  justify-self: start;
}
@media (min-width: 800px) {
  .page-about .std-row {
    grid-template-columns: 124px minmax(0, 1fr) auto;
    align-items: center;
    gap: 20px;
    padding: 18px 20px;
  }
  .page-about .std-row .tag {
    justify-self: end;
  }
}

/* ---------- 线下会馆 ---------- */
.page-about .about-venue {
  background: var(--wool);
  color: var(--ink);
  padding-block: clamp(38px, 5.5vw, 72px);
  position: relative;
}
.page-about .about-venue::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--cinnabar), var(--gold), var(--green), var(--blue), var(--cinnabar));
  opacity: .85;
}
.page-about .about-venue__head {
  max-width: 66ch;
  margin-bottom: clamp(22px, 3.4vw, 38px);
}
.page-about .about-venue__title {
  margin: 0 0 12px;
  color: #17130d;
}
.page-about .about-venue__lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(23, 19, 13, .72);
}
.page-about .venue-grid {
  display: grid;
  gap: 14px;
}
.page-about .venue-card {
  position: relative;
  padding: 18px;
  background: #fffaf1;
  border: 2px solid rgba(126, 26, 21, .22);
  box-shadow: var(--shadow-hard-sm);
  transition: transform .18s var(--ease), border-color .18s var(--ease);
}
.page-about .venue-card:hover {
  transform: translateY(-4px);
  border-color: var(--cinnabar);
}
.page-about .venue-card__no {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cinnabar);
}
.page-about .venue-card__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.16rem;
  color: #17130d;
}
.page-about .venue-card__text {
  margin: 0;
  font-size: 14.8px;
  line-height: 1.85;
  color: rgba(23, 19, 13, .78);
}
@media (min-width: 820px) {
  .page-about .venue-grid {
    grid-template-columns: 1.15fr .9fr .9fr;
    gap: 18px;
    align-items: start;
  }
  .page-about .venue-card:nth-child(2) {
    transform: translateY(24px);
  }
  .page-about .venue-card:nth-child(2):hover {
    transform: translateY(20px);
  }
}

.page-about .venue-visit {
  margin-top: clamp(30px, 4.5vw, 58px);
  border-top: 2px solid rgba(126, 26, 21, .3);
  padding-top: 18px;
  display: grid;
  gap: 10px;
}
.page-about .venue-visit__row {
  display: grid;
  gap: 4px;
}
.page-about .venue-visit__label {
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--cinnabar-deep);
}
.page-about .venue-visit__value {
  font-size: 15px;
  line-height: 1.7;
  color: #17130d;
}
@media (min-width: 720px) {
  .page-about .venue-visit__row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

/* ---------- 收束入口 ---------- */
.page-about .about-cta {
  padding-block: clamp(40px, 6vw, 80px);
  background:
    radial-gradient(circle at 12% 0%, rgba(179, 38, 30, .4), transparent 58%),
    linear-gradient(160deg, var(--indigo-2), var(--indigo));
  border-top: 1px solid var(--line-gold);
}
.page-about .about-cta__title {
  margin: 0 0 clamp(20px, 3vw, 32px);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 2.8vw, 1.9rem);
  line-height: 1.4;
  color: var(--wool);
  max-width: 24ch;
}
.page-about .about-cta__grid {
  display: grid;
  gap: 12px;
}
.page-about .cta-card {
  display: grid;
  gap: 6px;
  padding: 18px;
  text-decoration: none;
  color: var(--wool);
  border: 2px solid var(--line-gold);
  background: rgba(11, 10, 9, .3);
  transition: transform .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.page-about .cta-card:hover,
.page-about .cta-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--gold-bright);
  box-shadow: var(--shadow-hard-sm);
  outline: none;
}
.page-about .cta-card__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--gold);
}
.page-about .cta-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  line-height: 1.5;
}
.page-about .cta-card__text {
  font-size: 13.6px;
  line-height: 1.7;
  color: var(--text-dim);
}
.page-about .about-cta__note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}
.page-about .about-cta__note a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
}
.page-about .about-cta__note a:hover {
  border-bottom-color: var(--gold-bright);
}
@media (min-width: 780px) {
  .page-about .about-cta__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-item,
  .page-about .team-card,
  .page-about .std-row,
  .page-about .venue-card,
  .page-about .cta-card {
    transition: none;
  }
  .page-about .tl-item:hover,
  .page-about .std-row:hover,
  .page-about .venue-card:hover,
  .page-about .cta-card:hover {
    transform: none;
  }
}
<<<END>>>