.page-about {
  --about-gap: clamp(20px, 3.2vw, 38px);
  --about-rule: rgba(11, 27, 51, .12);
  --about-onink-soft: rgba(255, 253, 248, .74);
  --about-onink-faint: rgba(255, 253, 248, .16);
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-about .about-block {
  padding: clamp(46px, 7vw, 92px) 0;
}

.page-about .about-block--ink {
  background: var(--ink);
  color: var(--warm-white);
}

.page-about .about-block--soft {
  background: var(--paper-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 4.4vw, 44px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--heading);
}

.page-about .about-block--ink .about-h2,
.page-about .about-close .about-h2 {
  color: var(--warm-white);
}

.page-about .about-lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-block--ink .about-lede {
  color: var(--about-onink-soft);
}

.page-about .about-p {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .about-p a {
  color: var(--orange-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .coord--onink {
  color: var(--orange-soft);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: clamp(22px, 4vw, 50px) 0 clamp(30px, 5vw, 66px);
}

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

.page-about .about-hero__lede .eyebrow {
  display: block;
  margin-top: 18px;
}

.page-about .about-hero__title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(33px, 7.2vw, 74px);
  line-height: 1.04;
  letter-spacing: -.025em;
  color: var(--heading);
}

.page-about .about-hero__intro {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero__panel {
  background: var(--ink);
  border-radius: var(--radius-lg);
  padding: clamp(22px, 3vw, 32px);
  color: var(--warm-white);
  box-shadow: var(--shadow-card);
}

.page-about .about-hero__panel-label {
  margin: 0;
  font-family: var(--font-serif-label);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange-soft);
}

.page-about .about-figures {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 14px;
}

.page-about .about-figure__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 32px);
  line-height: 1.05;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .about-figure__unit {
  font-size: .58em;
  margin-left: 2px;
}

.page-about .about-figure__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--about-onink-soft);
}

/* ---------- 起点 ---------- */
.page-about .about-start__grid {
  display: grid;
  gap: var(--about-gap);
  align-items: start;
}

.page-about .about-media {
  margin: 0;
}

.page-about .about-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  object-fit: cover;
}

.page-about .about-media__cap {
  margin-top: 10px;
  font-family: var(--font-serif-label);
  font-size: 13px;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 时间轴 ---------- */
.page-about .tl-nav {
  display: flex;
  gap: 8px;
  margin-top: 24px;
  padding-bottom: 10px;
  overflow-x: auto;
}

.page-about .tl-nav a {
  flex: 0 0 auto;
  padding: 7px 15px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 253, 248, .3);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--warm-white);
  text-decoration: none;
  transition: background .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}

.page-about .tl-nav a:hover,
.page-about .tl-nav a:focus-visible {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--warm-white);
  outline: none;
}

.page-about .tl {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-about .tl__item {
  position: relative;
  padding: 0 0 32px 26px;
  border-left: 2px solid var(--about-onink-faint);
  scroll-margin-top: 96px;
}

.page-about .tl__item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 90, 31, .22);
}

.page-about .tl__year {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .tl__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(17px, 2.2vw, 21px);
  line-height: 1.35;
  color: var(--warm-white);
}

.page-about .tl__text {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-onink-soft);
}

/* ---------- 团队 ---------- */
.page-about .about-band {
  display: grid;
  gap: var(--about-gap);
  margin-top: 30px;
  padding: clamp(18px, 2.6vw, 28px);
  background: var(--ink);
  border-radius: var(--radius-lg);
  color: var(--warm-white);
}

.page-about .about-band__kicker {
  margin: 0;
  font-family: var(--font-serif-label);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--orange-soft);
}

.page-about .about-band__quote {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--warm-white);
}

.page-about .about-band__body {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-onink-soft);
}

.page-about .about-band__link {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .team-groups {
  margin-top: 26px;
}

.page-about .team-group {
  border-top: 1px solid var(--about-rule);
}

.page-about .team-group:last-child {
  border-bottom: 1px solid var(--about-rule);
}

.page-about .team-group summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 2px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15px, 2vw, 18px);
  color: var(--heading);
}

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

.page-about .team-group summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.page-about .team-group__sign {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1.5px solid var(--orange);
}

.page-about .team-group__sign::before,
.page-about .team-group__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 1.5px;
  background: var(--orange);
  transform: translate(-50%, -50%);
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}

.page-about .team-group__sign::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-about .team-group[open] .team-group__sign::after {
  transform: translate(-50%, -50%) rotate(0deg);
  opacity: 0;
}

.page-about .team-group__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--orange-deep);
  font-variant-numeric: tabular-nums;
}

.page-about .team-group__body {
  padding: 0 0 20px 34px;
}

.page-about .team-group__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .network {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .network__item {
  padding: 18px 20px;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.page-about .network__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 28px;
  line-height: 1;
  color: var(--orange-deep);
  font-variant-numeric: tabular-nums;
}

.page-about .network__label {
  display: block;
  margin-top: 6px;
  font-family: var(--font-serif-label);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--heading);
}

.page-about .network__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 场馆 ---------- */
.page-about .venue__grid {
  display: grid;
  gap: var(--about-gap);
  margin-top: 8px;
  align-items: start;
}

.page-about .venue__fields {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .venue__fields li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
}

.page-about .venue__fields li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--orange);
}

.page-about .venue__map {
  margin-top: 30px;
  padding: 14px 14px 6px;
  background: var(--warm-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

.page-about .venue__map svg {
  display: block;
  width: 100%;
  min-width: 560px;
  height: auto;
}

/* ---------- 收束 ---------- */
.page-about .about-close {
  background: var(--ink);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 4vw, 46px);
  color: var(--warm-white);
  box-shadow: var(--shadow-card);
}

.page-about .about-close__grid {
  display: grid;
  gap: var(--about-gap);
  margin-top: 24px;
  align-items: start;
}

.page-about .creed {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-about .creed__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--about-onink-faint);
}

.page-about .creed__item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-about .creed__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  color: var(--orange);
  line-height: 1.3;
}

.page-about .creed__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.4;
  color: var(--warm-white);
}

.page-about .creed__text {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-onink-soft);
}

.page-about .contact-card {
  padding: clamp(20px, 3vw, 28px);
  background: var(--ink-2);
  border: 1px solid rgba(255, 253, 248, .14);
  border-radius: var(--radius-md);
}

.page-about .contact-card__label {
  margin: 0;
  font-family: var(--font-serif-label);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-about .contact-card__list {
  margin: 16px 0 0;
  padding: 0;
}

.page-about .contact-card__row {
  display: grid;
  gap: 2px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(255, 253, 248, .16);
}

.page-about .contact-card__row:last-child {
  border-bottom: none;
}

.page-about .contact-card__row dt {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--about-onink-soft);
}

.page-about .contact-card__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--warm-white);
  word-break: break-word;
}

.page-about .contact-card__row dd a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 227, 200, .4);
}

.page-about .contact-card__row dd a:hover {
  border-bottom-color: var(--cyan);
}

.page-about .contact-card__note {
  margin: 16px 0 18px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--about-onink-soft);
}

.page-about .about-close__note {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--about-onink-faint);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--about-onink-soft);
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 640px) {
  .page-about .network {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .tl__item {
    display: grid;
    grid-template-columns: 150px minmax(0, 1fr);
    column-gap: 30px;
  }

  .page-about .tl__year {
    font-size: 46px;
  }

  .page-about .tl__body {
    padding-top: 3px;
  }

  .page-about .contact-card__row {
    grid-template-columns: 88px minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 940px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, .68fr);
    align-items: end;
  }

  .page-about .about-start__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 1fr);
  }

  .page-about .about-band {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-about .venue__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-about .about-close__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-about .about-media--start {
    margin-top: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-nav a,
  .page-about .team-group__sign::before,
  .page-about .team-group__sign::after {
    transition: none;
  }
}
<<<END>>>