.page-about {
  --about-line: rgba(46, 242, 192, .22);
  --about-hair: rgba(147, 163, 154, .18);
  background-color: var(--ink);
  color: var(--cream);
  font-family: var(--f-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-about .about-top {
  display: block;
  height: 0;
}

.page-about .crumbs {
  padding-top: 22px;
  font-size: 13px;
  color: var(--stone);
}

/* ---------- hero ---------- */

.page-about .about-hero {
  position: relative;
  padding: 26px 0 46px;
  background:
    radial-gradient(120% 92% at 84% 0%, rgba(46, 242, 192, .14) 0%, rgba(6, 16, 12, 0) 60%),
    linear-gradient(158deg, var(--green) 0%, var(--ink) 66%);
}

.page-about .about-hero::after {
  content: "";
  display: block;
  width: var(--frame);
  margin: 46px auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  transform: rotate(-.7deg);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 30px;
}

.page-about .about-hero__kicker {
  color: var(--cyan);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .06em;
  margin: 0 0 14px;
}

.page-about .about-hero__title {
  margin: 0 0 18px;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(2rem, 8.4vw, 4.25rem);
  line-height: 1.03;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-about .about-hero__lead {
  margin: 0 0 26px;
  max-width: 34em;
  font-size: 16px;
  color: rgba(244, 241, 232, .84);
}

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

.page-about .about-hero__panel {
  padding: 24px 20px;
  border-radius: 16px;
  background: var(--glass);
  border: 1px solid var(--glass-line);
  backdrop-filter: blur(6px);
}

.page-about .about-hero__panel-title {
  margin: 0 0 16px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--stone);
  text-transform: uppercase;
}

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

.page-about .about-hero__stat {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  column-gap: 8px;
  padding: 13px 0;
  border-top: 1px solid var(--about-hair);
}

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

.page-about .about-hero__stat .stat__num {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 34px;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cream);
}

.page-about .about-hero__stat .stat__num--cyan {
  color: var(--cyan);
}

.page-about .about-hero__stat .stat__num--orange {
  color: var(--orange);
}

.page-about .about-hero__stat .stat__unit {
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--stone);
}

.page-about .about-hero__stat .stat__label {
  grid-column: 1 / -1;
  margin: 6px 0 0;
  font-size: 14px;
  color: var(--stone);
}

/* ---------- 通用章节 ---------- */

.page-about .about-part {
  padding: 44px 0;
}

.page-about .about-head {
  margin-bottom: 26px;
}

.page-about .about-head__kicker {
  margin: 0 0 12px;
  padding-left: 14px;
  position: relative;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-about .about-head__kicker::before {
  content: "";
  position: absolute;
  left: 0;
  top: .55em;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-about .about-head__title,
.page-about .about-part__title,
.page-about .about-cover__title {
  margin: 0 0 14px;
  font-family: var(--f-serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 5.4vw, 2.4rem);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-about .about-head__note {
  margin: 0;
  max-width: 44em;
  font-size: 15px;
  color: var(--stone);
}

/* 主张：左右分栏 */
.page-about .about-part--claim {
  padding-top: 8px;
}

.page-about .about-part--claim .about-part__kicker {
  margin: 0 0 10px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-about .about-part__body p {
  margin: 0 0 16px;
  font-size: 16px;
  color: rgba(244, 241, 232, .86);
}

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

/* ---------- 赛季筹备 ---------- */

.page-about .about-part--prep {
  background:
    linear-gradient(180deg, rgba(20, 67, 46, .5) 0%, rgba(6, 16, 12, 0) 100%);
}

.page-about .about-banner {
  margin: 0 0 30px;
}

.page-about .about-banner .media__frame {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--about-hair);
}

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

.page-about .about-prep__item {
  padding: 20px 0 18px;
  border-top: 1px solid var(--about-hair);
  display: grid;
  gap: 6px;
}

.page-about .about-prep__idx {
  font-family: var(--f-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-about .about-prep__name {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-about .about-prep__text {
  margin: 0;
  font-size: 15px;
  color: rgba(244, 241, 232, .78);
}

/* ---------- 团队 ---------- */

.page-about .about-team__layout {
  display: grid;
  gap: 26px;
}

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

.page-about .about-team__media .media__frame {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--about-hair);
}

.page-about .about-team__bar {
  display: flex;
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, .05);
  margin-bottom: 22px;
}

.page-about .about-team__seg {
  display: block;
  height: 100%;
}

.page-about .about-team__seg--a {
  flex: 9;
  background: var(--cyan);
}

.page-about .about-team__seg--b {
  flex: 11;
  background: var(--moss);
}

.page-about .about-team__seg--c {
  flex: 6;
  background: var(--clay);
}

.page-about .about-team__list {
  display: grid;
  gap: 2px;
}

.page-about .about-team__item {
  border-top: 1px solid var(--about-hair);
}

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

.page-about .about-team__btn {
  width: 100%;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 0;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-about .about-team__name {
  flex: 1 1 auto;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--cream);
}

.page-about .about-team__num {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 22px;
  color: var(--cream);
}

.page-about .about-team__unit {
  margin-left: 3px;
  font-size: 12px;
  font-weight: 400;
  color: var(--stone);
}

.page-about .about-team__btn .disclosure__icon {
  flex: 0 0 auto;
  align-self: center;
}

.page-about .about-team__panel {
  padding: 0 0 18px;
  font-size: 15px;
  color: rgba(244, 241, 232, .78);
  max-width: 40em;
}

.page-about .about-team__item[data-open="true"] .about-team__name {
  color: var(--cyan);
}

/* ---------- 四个板块 ---------- */

.page-about .about-boards {
  display: grid;
  gap: 14px;
}

.page-about .about-board {
  position: relative;
  padding: 22px 20px 24px;
  border-radius: 14px;
  background: var(--green-2);
  border: 1px solid var(--about-hair);
  overflow: hidden;
}

.page-about .about-board::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
}

.page-about .about-board--a::before { background: var(--orange); }
.page-about .about-board--b::before { background: var(--cyan); }
.page-about .about-board--c::before { background: var(--moss); }
.page-about .about-board--d::before { background: var(--clay); }

.page-about .about-board__title {
  margin: 14px 0 10px;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-about .about-board__text {
  margin: 0 0 16px;
  font-size: 15px;
  color: rgba(244, 241, 232, .78);
}

.page-about .about-board__link {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--about-line);
  padding-bottom: 2px;
}

.page-about .about-board__link:hover,
.page-about .about-board__link:focus-visible {
  color: var(--cream);
  border-bottom-color: var(--cream);
}

/* ---------- 版本时间线 ---------- */

.page-about .about-part--era {
  background: linear-gradient(180deg, rgba(11, 42, 29, .7) 0%, rgba(6, 16, 12, 0) 100%);
}

.page-about .about-tl {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-about .about-tl__item {
  position: relative;
  padding-left: 30px;
  border-left: 1px solid var(--about-line);
  margin-left: 7px;
}

.page-about .about-tl__item::after {
  content: "";
  position: absolute;
  left: -8px;
  top: 15px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
}

.page-about .about-tl__card {
  padding-bottom: 6px;
}

.page-about .about-tl__btn {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-about .about-tl__year {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -.02em;
  color: var(--stone);
  transition: color .25s ease;
}

.page-about .about-tl__title {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--cream);
}

.page-about .about-tl__btn .disclosure__icon {
  align-self: center;
}

.page-about .about-tl__panel {
  padding: 0 0 16px;
  font-size: 15px;
  color: rgba(244, 241, 232, .78);
}

.page-about .about-tl__card[data-open="true"] .about-tl__year {
  color: var(--orange);
}

.page-about .about-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--about-hair);
}

.page-about .about-quick__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--cyan);
  text-decoration: none;
}

.page-about .about-quick__link:hover,
.page-about .about-quick__link:focus-visible {
  color: var(--cream);
}

/* ---------- 服务覆盖 ---------- */

.page-about .about-part--cover {
  padding-bottom: 64px;
}

.page-about .about-cover__grid {
  display: grid;
  gap: 28px;
}

.page-about .about-cover__lead {
  margin: 0 0 22px;
  max-width: 40em;
  font-size: 16px;
  color: rgba(244, 241, 232, .84);
}

.page-about .about-cover__list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-cover__list li {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-top: 1px solid var(--about-hair);
}

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

.page-about .about-cover__key {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cyan);
}

.page-about .about-cover__val {
  font-size: 15px;
  color: var(--cream);
}

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

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

.page-about .about-cover__frame {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--about-hair);
  aspect-ratio: 5 / 6;
}

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

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

/* ---------- 桌面 ---------- */

@media (min-width: 880px) {
  .page-about .about-hero {
    padding: 44px 0 64px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: 5fr 7fr;
    gap: 56px;
    align-items: end;
  }

  .page-about .about-hero__lead {
    font-size: 17px;
  }

  .page-about .about-hero__panel {
    padding: 28px 26px;
  }

  .page-about .about-hero__stats {
    grid-template-columns: repeat(2, 1fr);
    column-gap: 24px;
  }

  .page-about .about-hero__stat:nth-child(2) {
    border-top: 0;
    padding-top: 0;
  }

  .page-about .about-part {
    padding: 64px 0;
  }

  .page-about .about-part--claim .about-part__grid {
    display: grid;
    grid-template-columns: 4fr 7fr;
    gap: 48px;
    align-items: start;
  }

  .page-about .about-part--claim .about-part__title {
    font-size: 2.6rem;
    margin-bottom: 0;
  }

  .page-about .about-prep {
    grid-template-columns: repeat(2, 1fr);
    column-gap: 44px;
  }

  .page-about .about-prep__item {
    padding: 24px 0 22px;
  }

  .page-about .about-team__layout {
    grid-template-columns: 5fr 6fr;
    gap: 44px;
    align-items: start;
  }

  .page-about .about-boards {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }

  .page-about .about-tl {
    grid-template-columns: repeat(4, 1fr);
    position: relative;
    margin-top: 34px;
  }

  .page-about .about-tl::before {
    content: "";
    position: absolute;
    left: 7px;
    right: 7px;
    top: 7px;
    height: 1px;
    background: linear-gradient(90deg, rgba(46, 242, 192, .55), rgba(46, 242, 192, .12));
  }

  .page-about .about-tl__item {
    padding: 34px 22px 0 0;
    border-left: 0;
    margin-left: 0;
  }

  .page-about .about-tl__item::after {
    left: 0;
    top: 0;
    width: 15px;
    height: 15px;
  }

  .page-about .about-tl__btn {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 0 0 10px;
  }

  .page-about .about-tl__year {
    font-size: 30px;
  }

  .page-about .about-tl__btn .disclosure__icon {
    display: none;
  }

  .page-about .about-cover__grid {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: start;
  }

  .page-about .about-cover__frame {
    aspect-ratio: 5 / 6;
  }
}

@media (min-width: 1160px) {
  .page-about .about-hero__title {
    font-size: 4.25rem;
  }

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

  .page-about .about-board__text {
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-tl__year {
    transition: none;
  }
}
<<<END>>>