.page-about {
  --about-gap: clamp(56px, 8vw, 96px);
  --about-line: rgba(20, 16, 14, 0.13);
}

.page-about .about-context {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 26px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--clay);
}

.page-about .about-context a {
  color: var(--clay);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-about .about-context a:hover {
  color: var(--cinnabar);
  border-bottom-color: var(--gold);
}

.page-about .about-context b {
  font-weight: 500;
  color: var(--ink);
}

/* 首屏 */
.page-about .about-hero {
  display: grid;
  gap: 30px;
  padding: 22px 0 var(--about-gap);
}

.page-about .about-hero__title {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(34px, 8.2vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 16px 0 20px;
  color: var(--ink);
}

.page-about .about-hero__lede {
  max-width: 32em;
  margin: 0;
  font-size: clamp(16px, 2.1vw, 19px);
  line-height: 1.85;
  color: var(--clay);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px 18px;
  margin: 28px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--about-line);
}

.page-about .about-hero__facts dt {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 21px;
  letter-spacing: -0.01em;
  color: var(--cinnabar);
}

.page-about .about-hero__facts dd {
  margin: 5px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--clay);
}

.page-about .about-hero__figure {
  margin: 0;
  align-self: end;
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--gold-soft);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 时间轴 */
.page-about .about-path {
  padding: clamp(40px, 6vw, 64px) 0 var(--about-gap);
  border-top: 1px solid var(--about-line);
}

.page-about .about-path__head h2,
.page-about .about-team__head h2,
.page-about .about-reach__text h2,
.page-about .about-batch__head h2,
.page-about .about-rules h2,
.page-about .about-snapshot h2,
.page-about .about-next h2 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(26px, 4.6vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 12px 0 16px;
  color: var(--ink);
}

.page-about .about-path__intro,
.page-about .about-team__intro {
  max-width: 36em;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--clay);
}

.page-about .about-years {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 6px;
}

.page-about .about-years a {
  display: inline-block;
  padding: 6px 13px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--clay);
  text-decoration: none;
  border: 1px solid var(--about-line);
  border-radius: 999px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-about .about-years a:hover,
.page-about .about-years a:focus-visible {
  color: var(--cinnabar);
  border-color: var(--gold);
  background: var(--gold-soft);
}

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

.page-about .timeline__item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 34px;
  scroll-margin-top: 100px;
}

.page-about .timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .timeline__mark {
  position: relative;
  padding-right: 18px;
}

.page-about .timeline__mark::before {
  content: "";
  position: absolute;
  top: 22px;
  bottom: -34px;
  right: 5px;
  width: 1px;
  background: var(--about-line);
}

.page-about .timeline__item:last-child .timeline__mark::before {
  display: none;
}

.page-about .timeline__mark::after {
  content: "";
  position: absolute;
  top: 11px;
  right: 11px;
  width: 12px;
  height: 1px;
  background: var(--gold);
}

.page-about .timeline__year {
  display: block;
  padding-top: 2px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--cinnabar);
}

.page-about .timeline__dot {
  position: absolute;
  top: 6px;
  right: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--cinnabar);
  box-shadow: 0 0 0 4px var(--paper);
}

.page-about .timeline__body h3 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 20px;
  line-height: 1.35;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-about .timeline__body p {
  max-width: 34em;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--clay);
}

.page-about .about-path__band {
  margin: 38px 0 0;
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-about .about-path__band img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 团队 */
.page-about .about-team {
  padding: clamp(40px, 6vw, 64px) 0 var(--about-gap);
  background:
    linear-gradient(180deg, rgba(201, 154, 61, 0.1) 0%, rgba(201, 154, 61, 0) 62%),
    var(--paper);
}

.page-about .about-team__grid {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.page-about .about-team__card {
  padding: 24px 22px 26px;
  border: 1px solid var(--about-line);
  border-left: 3px solid var(--cinnabar);
  border-radius: var(--radius);
  background: var(--paper);
  transition: transform 200ms var(--ease), box-shadow 200ms var(--ease), border-color 200ms var(--ease);
}

.page-about .about-team__card:nth-child(2) {
  border-left-color: var(--gold);
}

.page-about .about-team__card:nth-child(3) {
  border-left-color: var(--jade);
}

.page-about .about-team__card:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: 0 16px 32px rgba(20, 16, 14, 0.09);
}

.page-about .about-team__card h3 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.4;
  margin: 14px 0 8px;
  color: var(--ink);
}

.page-about .about-team__card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--clay);
}

/* 覆盖 */
.page-about .about-reach {
  padding: 0 0 var(--about-gap);
}

.page-about .about-reach__inner {
  display: grid;
  gap: 26px;
  align-items: center;
  padding-top: clamp(36px, 5vw, 56px);
  border-top: 1px solid var(--about-line);
}

.page-about .about-reach__text p {
  max-width: 34em;
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--clay);
}

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

.page-about .about-reach__figure {
  margin: 0;
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--jade-soft);
}

.page-about .about-reach__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 批次 */
.page-about .about-batch {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(48px, 7vw, 84px) 0;
  margin-bottom: var(--about-gap);
}

.page-about .about-batch .eyebrow--gold {
  color: var(--gold);
}

.page-about .about-batch__head h2 {
  color: var(--paper);
}

.page-about .about-batch__head p {
  max-width: 36em;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(250, 246, 239, 0.74);
}

.page-about .about-batch__list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
}

.page-about .about-batch__list li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  padding: 22px 0;
  border-top: 1px solid rgba(250, 246, 239, 0.16);
}

.page-about .about-batch__no {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 26px;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-batch__list h3 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.4;
  margin: 0 0 6px;
  color: var(--paper);
}

.page-about .about-batch__list p {
  max-width: 34em;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(250, 246, 239, 0.76);
}

.page-about .about-batch__foot {
  margin: 26px 0 0;
  font-size: 13px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--gold);
}

/* 准则 */
.page-about .about-rules {
  padding: 0 0 var(--about-gap);
}

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

.page-about .about-rules__list li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 24px 0;
  border-top: 1px dashed var(--about-line);
}

.page-about .about-rules__list li:last-child {
  border-bottom: 1px dashed var(--about-line);
}

.page-about .about-rules__num {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 32px;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-rules__list h3 {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 19px;
  margin: 0 0 6px;
  color: var(--ink);
}

.page-about .about-rules__list p {
  max-width: 34em;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--clay);
}

/* 数据 */
.page-about .about-snapshot {
  padding: 0 0 var(--about-gap);
}

.page-about .about-snapshot__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 24px;
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--about-line);
}

.page-about .about-snapshot__grid > div {
  padding: 22px 18px 24px;
  background: var(--paper);
}

.page-about .about-snapshot__num {
  display: block;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(30px, 6vw, 44px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cinnabar);
}

.page-about .about-snapshot__label {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--clay);
}

/* 出口 */
.page-about .about-next {
  padding: 0 0 clamp(56px, 8vw, 88px);
}

.page-about .about-next__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-next__list a {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 18px 20px;
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: transform 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-about .about-next__list a:hover,
.page-about .about-next__list a:focus-visible {
  transform: translateX(4px);
  border-color: var(--cinnabar);
  background: var(--gold-soft);
}

.page-about .about-next__list span {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 18px;
  color: var(--ink);
}

.page-about .about-next__list em {
  font-style: normal;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--clay);
}

/* 中等屏幕 */
@media (min-width: 760px) {
  .page-about .timeline__item {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 26px;
    padding-bottom: 44px;
  }

  .page-about .timeline__mark::before {
    bottom: -44px;
  }

  .page-about .timeline__year {
    font-size: 24px;
  }

  .page-about .timeline__dot {
    top: 9px;
  }

  .page-about .timeline__mark::after {
    top: 14px;
  }

  .page-about .about-batch__list li {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 22px;
    padding: 26px 0;
  }
}

/* 桌面 */
@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 54px;
    padding-top: 34px;
  }

  .page-about .about-hero__figure {
    margin-bottom: 6px;
  }

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

  .page-about .about-reach__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
  }

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

  .page-about .about-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-rules__list li {
    grid-template-columns: 68px minmax(0, 1fr);
    gap: 26px;
    padding: 30px 0;
  }

  .page-about .about-rules__num {
    font-size: 44px;
  }
}
</