.page-about {
  --about-rule: rgba(200, 150, 62, 0.32);
  --about-hairline: rgba(23, 21, 15, 0.12);
  --about-measure: 66ch;
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

/* ===== 首屏 ===== */
.page-about .about-hero {
  position: relative;
  padding-block: 24px clamp(40px, 7vw, 76px);
  background:
    radial-gradient(120% 80% at 10% -12%, rgba(200, 150, 62, 0.22), transparent 60%),
    radial-gradient(85% 62% at 102% 112%, rgba(74, 18, 24, 0.88), transparent 66%),
    var(--ink-green);
  color: var(--paper);
  overflow: hidden;
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  margin-top: clamp(26px, 5vw, 54px);
}

.page-about .about-hero__lead .eyebrow {
  color: var(--gold);
  letter-spacing: 0.14em;
}

.page-about .about-hero__title {
  margin: 0.2em 0 0.45em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7vw, 66px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .about-hero__accent {
  display: block;
  margin-top: 0.12em;
  padding-bottom: 0.14em;
  color: var(--gold-light);
  border-bottom: 2px solid var(--gold);
}

.page-about .about-hero__lead .lede {
  max-width: 54ch;
  color: rgba(247, 241, 230, 0.86);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 4vw, 32px);
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--about-rule);
  border-radius: 6px;
  overflow: hidden;
  background: rgba(14, 42, 34, 0.6);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
}

.page-about .about-hero__cap {
  display: block;
  padding: 12px 16px 14px;
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--gold-light);
  background: rgba(74, 18, 24, 0.55);
  border-top: 1px solid rgba(255, 243, 208, 0.14);
}

/* ===== 暗红幕间带 ===== */
.page-about .about-curtain {
  padding-block: clamp(34px, 6vw, 62px);
  background: var(--curtain-red);
  border-top: 1px solid rgba(255, 243, 208, 0.14);
  border-bottom: 1px solid rgba(255, 243, 208, 0.14);
}

.page-about .about-curtain__quote {
  max-width: 34ch;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3.2vw, 34px);
  line-height: 1.55;
  letter-spacing: 0.01em;
  color: var(--gold-light);
}

/* ===== 目录 + 正文 ===== */
.page-about .about-layout {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
  padding-block: clamp(40px, 7vw, 84px) clamp(56px, 8vw, 104px);
}

.page-about .about-toc {
  display: none;
}

.page-about .about-toc__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-height: 44px;
  padding: 9px 0;
  font-size: 14px;
  line-height: 1.5;
  color: rgba(23, 21, 15, 0.78);
  text-decoration: none;
  border-bottom: 1px solid var(--about-hairline);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .about-toc__link .mono {
  color: var(--gold-deep);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.page-about .about-toc__link:hover,
.page-about .about-toc__link:focus-visible {
  color: var(--ink-green);
  border-bottom-color: var(--gold);
}

.page-about .about-toc__note {
  margin: 18px 0 0;
  font-size: 12px;
  line-height: 1.75;
  letter-spacing: 0.04em;
  color: var(--mist);
}

/* ===== 章节 ===== */
.page-about .about-section {
  padding-block: clamp(30px, 5vw, 52px);
  border-top: 1px solid var(--about-rule);
}

.page-about .about-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .about-num {
  display: inline-block;
  margin-right: 8px;
  color: var(--gold-deep);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-about .about-section__title {
  margin: 0.28em 0 0.6em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 3.8vw, 42px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink-green);
}

.page-about .about-lead {
  max-width: var(--about-measure);
  margin: 0 0 clamp(22px, 3vw, 32px);
  font-size: 17px;
  line-height: 1.85;
  color: rgba(23, 21, 15, 0.84);
}

.page-about .about-prose {
  max-width: var(--about-measure);
  margin-block: 0 clamp(18px, 3vw, 26px);
}

.page-about .about-prose p {
  margin: 0 0 1.1em;
}

.page-about .about-inline-link {
  color: var(--ink-green);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 1px;
}

.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  color: var(--gold-deep);
  background: rgba(200, 150, 62, 0.14);
}

.page-about .about-note {
  max-width: 50ch;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 14px 0 14px 18px;
  border-left: 2px solid var(--gold);
  background: linear-gradient(90deg, rgba(232, 220, 198, 0.55), transparent 86%);
}

.page-about .about-note p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(23, 21, 15, 0.78);
}

/* ===== 三件事 ===== */
.page-about .about-principles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(22px, 3.6vw, 36px);
}

.page-about .about-principle {
  display: grid;
  gap: 6px 20px;
  padding-bottom: clamp(18px, 3vw, 26px);
  border-bottom: 1px solid var(--about-hairline);
}

.page-about .about-principle__num {
  display: block;
  font-size: 26px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--gold);
}

.page-about .about-principle__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 23px);
  line-height: 1.4;
  color: var(--ink-green);
}

.page-about .about-principle p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(23, 21, 15, 0.82);
}

/* ===== 团队 ===== */
.page-about .about-team-figure {
  margin: 0 0 clamp(24px, 4vw, 34px);
  border: 1px solid var(--about-rule);
  border-radius: 4px;
  overflow: hidden;
}

.page-about .about-team-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-about .about-team-figure figcaption,
.page-about .about-network-figure figcaption {
  padding: 11px 14px 12px;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--gold-deep);
  background: var(--ticket);
  border-top: 1px solid var(--about-rule);
}

.page-about .about-team {
  display: grid;
  gap: 16px;
}

.page-about .about-team__block {
  padding: clamp(18px, 3vw, 24px);
  background: var(--ticket);
  border: 1px solid rgba(23, 21, 15, 0.08);
  border-radius: 26px 8px 30px 10px;
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease),
    box-shadow 0.28s var(--ease), background-color 0.28s var(--ease);
}

.page-about .about-team__block:hover,
.page-about .about-team__block:focus-within,
.page-about .about-team__block:focus-visible {
  transform: translateY(-3px);
  background: #efe5d3;
  border-color: var(--gold);
  box-shadow: 0 16px 32px -22px rgba(14, 42, 34, 0.62);
  outline: none;
}

.page-about .about-team__tag {
  display: inline-block;
  margin: 0 0 8px;
  padding: 3px 8px;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
  border: 1px solid var(--about-rule);
  border-radius: 2px;
}

.page-about .about-team__title {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.4;
  color: var(--ink-green);
}

.page-about .about-team__role {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(23, 21, 15, 0.6);
}

.page-about .about-team__detail {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(23, 21, 15, 0.82);
}

/* ===== 场地网络 ===== */
.page-about .about-network-figure {
  margin: 0 0 clamp(22px, 3.5vw, 32px);
  border: 1px solid var(--about-rule);
  border-radius: 4px;
  overflow: hidden;
}

.page-about .about-network-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(16px, 3vw, 26px);
  margin: 0 0 clamp(22px, 3.5vw, 30px);
  padding-top: clamp(16px, 3vw, 24px);
  border-top: 1px solid var(--gold);
}

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

.page-about .about-stat__label {
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-about .about-stat__num {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 4.6vw, 44px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink-green);
}

.page-about .about-stat__num span {
  margin-left: 4px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--gold-deep);
}

/* ===== 时间轴 ===== */
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-timeline__item {
  position: relative;
  padding-left: 20px;
  border-left: 1px solid var(--about-rule);
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 22px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}

.page-about .about-timeline__summary {
  display: block;
  padding-block: 14px;
  cursor: pointer;
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold-deep);
}

.page-about .about-timeline__label {
  display: block;
  margin-top: 4px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.45;
  color: var(--ink-green);
}

.page-about .about-timeline .fold__body p {
  margin: 0 0 1em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(23, 21, 15, 0.8);
}

/* ===== 现场值守 ===== */
.page-about .about-onsite {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(20px, 3vw, 28px);
}

.page-about .about-onsite__item {
  position: relative;
  padding-left: 22px;
  border-left: 1px solid rgba(200, 150, 62, 0.45);
}

.page-about .about-onsite__time {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--gold-deep);
}

.page-about .about-onsite__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.45;
  color: var(--ink-green);
}

.page-about .about-onsite__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(23, 21, 15, 0.82);
}

/* ===== 收尾 ===== */
.page-about .about-cta {
  padding-block: clamp(40px, 6vw, 72px);
  background:
    radial-gradient(90% 120% at 88% -20%, rgba(200, 150, 62, 0.24), transparent 60%),
    var(--ink-green);
  color: var(--paper);
}

.page-about .about-cta__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.3;
  color: var(--paper);
}

.page-about .about-cta__text {
  max-width: 52ch;
  margin: 0 0 clamp(20px, 3.5vw, 28px);
  font-size: 16px;
  line-height: 1.85;
  color: rgba(247, 241, 230, 0.82);
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-cta .btn--ghost {
  color: var(--paper);
  border-color: rgba(247, 241, 230, 0.42);
}

.page-about .about-cta .btn--ghost:hover,
.page-about .about-cta .btn--ghost:focus-visible {
  color: var(--ink-green);
  background: var(--gold-light);
  border-color: var(--gold-light);
}

/* ===== 响应式 ===== */
@media (min-width: 720px) {
  .page-about .about-principle {
    grid-template-columns: 70px minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-principle__num {
    grid-row: 1 / 3;
  }

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

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(32px, 4vw, 68px);
  }

  .page-about .about-hero__figure {
    transform: translateY(clamp(0px, 2vw, 26px));
  }

  .page-about .about-team {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-about .about-team__block:nth-child(1) {
    border-radius: 32px 10px 12px 28px;
  }

  .page-about .about-team__block:nth-child(2) {
    margin-top: 30px;
    border-radius: 10px 30px 28px 12px;
  }

  .page-about .about-team__block:nth-child(3) {
    margin-top: -12px;
    border-radius: 12px 28px 10px 32px;
  }

  .page-about .about-team__block:nth-child(4) {
    margin-top: 16px;
    border-radius: 28px 12px 32px 10px;
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-about .about-team__detail {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.34s var(--ease), opacity 0.3s var(--ease),
      margin-top 0.34s var(--ease);
  }

  .page-about .about-team__block:hover .about-team__detail,
  .page-about .about-team__block:focus-within .about-team__detail {
    max-height: 9em;
    opacity: 1;
  }
}

@media (min-width: 1024px) {
  .page-about .about-layout {
    grid-template-columns: minmax(0, 196px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(40px, 5vw, 78px);
  }

  .page-about .about-toc {
    display: block;
    position: sticky;
    top: clamp(24px, 6vh, 60px);
    padding-top: 14px;
    border-top: 1px solid var(--gold);
  }

  .page-about .about-timeline {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0;
    padding-top: 22px;
    border-top: 1px solid var(--gold);
  }

  .page-about .about-timeline__item {
    padding-left: 16px;
    padding-right: 14px;
    border-left: 1px solid rgba(200, 150, 62, 0.28);
  }

  .page-about .about-timeline__item:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-about .about-timeline__item::before {
    left: -4px;
    top: -26px;
  }

  .page-about .about-timeline__item:first-child::before {
    left: 0;
  }

  .page-about .about-timeline__label {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-team__block,
  .page-about .about-team__detail {
    transition: none;
  }

  .page-about .about-team__block:hover,
  .page-about .about-team__block:focus-within,
  .page-about .about-team__block:focus-visible {
    transform: none;
  }
}
<<<END>>>