.page-about {
  --about-hairline: rgba(21, 18, 16, 0.12);
  --about-soft: rgba(232, 178, 58, 0.16);
  background: var(--ivory);
  color: var(--ink);
}

/* ============ 首屏 ============ */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 40px) 0 clamp(44px, 7vw, 92px);
  background:
    radial-gradient(120% 85% at 92% 4%, rgba(232, 178, 58, 0.30), transparent 62%),
    radial-gradient(90% 70% at 0% 100%, rgba(196, 58, 47, 0.12), transparent 65%),
    var(--ivory);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -140px;
  width: clamp(200px, 34vw, 360px);
  height: clamp(200px, 34vw, 360px);
  border-radius: 46% 54% 58% 42% / 52% 44% 56% 48%;
  background: linear-gradient(140deg, rgba(196, 58, 47, 0.14), rgba(232, 178, 58, 0.22));
  pointer-events: none;
}

.page-about .about-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-about .about-hero__main h1 {
  margin: 14px 0 18px;
  font-size: clamp(34px, 7.2vw, 72px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 900;
  max-width: 15em;
}

.page-about .about-hero__main .lead {
  max-width: 46ch;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero__figures {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  align-content: start;
}

.page-about .fig {
  position: relative;
  padding: 16px 16px 18px;
  border-radius: 20px 20px 20px 4px;
  background: rgba(255, 255, 255, 0.66);
  box-shadow: inset 0 0 0 1px rgba(21, 18, 16, 0.07);
}

.page-about .fig:nth-child(2) {
  border-radius: 20px 4px 20px 20px;
  background: rgba(232, 178, 58, 0.20);
}

.page-about .fig:nth-child(3) {
  border-radius: 4px 20px 20px 20px;
}

.page-about .fig:nth-child(4) {
  border-radius: 20px 20px 4px 20px;
  background: rgba(196, 58, 47, 0.10);
}

.page-about .fig__num {
  display: block;
  font-size: clamp(26px, 5vw, 38px);
  line-height: 1;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.03em;
}

.page-about .fig__unit {
  font-size: 0.52em;
  margin-left: 2px;
}

.page-about .fig__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--grey);
}

/* ============ 主体栅格 ============ */
.page-about .about-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

/* 目录 */
.page-about .about-index {
  align-self: start;
}

.page-about .about-index__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--grey);
}

.page-about .about-index__list {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-about .about-index__list li {
  flex: 0 0 auto;
}

.page-about .about-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  background: rgba(21, 18, 16, 0.05);
  transition: background 200ms var(--ease-out), color 200ms var(--ease-out);
}

.page-about .about-index__list a .mono {
  font-size: 11px;
  color: var(--red);
}

.page-about .about-index__list a:hover,
.page-about .about-index__list a:focus-visible {
  background: var(--gold);
  color: var(--ink);
}

.page-about .about-index__list a:hover .mono,
.page-about .about-index__list a:focus-visible .mono {
  color: var(--red-deep);
}

/* ============ 区块通用 ============ */
.page-about .about-flow {
  min-width: 0;
}

.page-about .about-section {
  position: relative;
  padding: clamp(30px, 5vw, 56px) 0;
  border-top: 1px solid var(--about-hairline);
}

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

.page-about .about-section--sand {
  margin: clamp(16px, 3vw, 32px) 0;
  padding: clamp(30px, 5vw, 56px) clamp(18px, 3.4vw, 40px);
  border-top: 0;
  border-radius: 28px 6px 28px 6px;
  background: var(--sand);
}

.page-about .about-head h2 {
  margin: 12px 0 14px;
  font-size: clamp(26px, 4.6vw, 42px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 900;
}

.page-about .about-head .lead {
  max-width: 54ch;
}

/* ============ 图片框 ============ */
.page-about .media-frame {
  margin: 26px 0 0;
  border-radius: 26px 6px 26px 6px;
  overflow: hidden;
  background: var(--sand);
  box-shadow: var(--shadow-soft);
}

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

.page-about .media-frame__caption {
  padding: 12px 18px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--grey);
  background: rgba(248, 242, 230, 0.92);
}

/* ============ 时间轴 ============ */
.page-about .timeline {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  position: relative;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 18px;
  bottom: 18px;
  width: 2px;
  background-image: linear-gradient(to bottom, var(--gold) 0 8px, transparent 8px 17px);
  background-size: 2px 17px;
  background-repeat: repeat-y;
}

.page-about .timeline__item {
  position: relative;
  padding-left: 36px;
  margin-bottom: 8px;
}

.page-about .tl {
  position: relative;
  border-radius: 16px;
  transition: background 220ms var(--ease-out);
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: -35px;
  top: 20px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 5px var(--ivory);
  z-index: 1;
}

.page-about .about-section--sand .tl::before {
  box-shadow: 0 0 0 5px var(--sand);
}

.page-about .tl[open]::before {
  background: var(--red);
}

.page-about .tl__sum {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 10px 14px;
  cursor: pointer;
  border-radius: 14px;
  list-style: none;
  transition: background 200ms var(--ease-out);
}

.page-about .tl__sum::-webkit-details-marker {
  display: none;
}

.page-about .tl__sum:hover {
  background: rgba(232, 178, 58, 0.16);
}

.page-about .tl__sum:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

.page-about .tl__year {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--red);
  background: rgba(196, 58, 47, 0.10);
  border-radius: 999px;
  padding: 4px 10px;
}

.page-about .tl__name {
  font-size: clamp(15px, 2.4vw, 18px);
  font-weight: 700;
  line-height: 1.4;
  min-width: 0;
}

.page-about .tl__sum::after {
  content: "展开";
  flex: 0 0 auto;
  margin-left: auto;
  font-size: 11px;
  color: var(--grey);
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 2px 10px;
  white-space: nowrap;
}

.page-about .tl[open] .tl__sum::after {
  content: "收起";
  color: var(--red);
}

.page-about .tl__body {
  padding: 2px 14px 14px;
}

.page-about .tl__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: #3b342d;
}

/* ============ 赛季节奏 ============ */
.page-about .beats {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-about .beat {
  position: relative;
  padding: 20px 20px 22px;
  border-radius: 20px 20px 20px 4px;
  background: rgba(248, 242, 230, 0.86);
  box-shadow: inset 0 0 0 1px rgba(21, 18, 16, 0.06);
}

.page-about .beat:nth-child(even) {
  border-radius: 20px 4px 20px 20px;
}

.page-about .beat__no {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--red);
  margin-bottom: 8px;
}

.page-about .beat h3 {
  margin: 0 0 8px;
  font-size: 19px;
  line-height: 1.3;
  font-weight: 800;
}

.page-about .beat p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: #3b342d;
}

.page-about .season-note {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px dashed rgba(21, 18, 16, 0.22);
}

.page-about .season-note__text {
  margin: 0;
  flex: 1 1 260px;
  font-size: 14.5px;
  line-height: 1.7;
  color: #4a4139;
}

/* ============ 团队 ============ */
.page-about .team-bar {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 26px 0 8px;
  border-radius: 24px 6px 24px 6px;
  overflow: hidden;
}

.page-about .team-seg {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 12px;
  padding: 16px 20px;
  min-height: 68px;
  color: var(--ivory);
}

.page-about .team-seg__num {
  font-size: clamp(22px, 4vw, 28px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-about .team-seg__name {
  font-size: 14px;
  line-height: 1.4;
}

.page-about .team-seg--dev {
  background: linear-gradient(150deg, #332c26, var(--ink));
}

.page-about .team-seg--ops {
  background: linear-gradient(150deg, var(--red), var(--red-deep));
}

.page-about .team-seg--care {
  background: linear-gradient(150deg, var(--gold-soft), var(--gold));
  color: var(--ink);
}

.page-about .team-seg--qc {
  background: linear-gradient(150deg, #2f63b8, var(--blue));
}

.page-about .team-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-top: 24px;
}

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

.page-about .team-note {
  position: relative;
  padding-left: 16px;
}

.page-about .team-note::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 4px;
  background: var(--gold);
}

.page-about .team-note--ops::before {
  background: var(--red);
}

.page-about .team-note--care::before {
  background: var(--gold);
}

.page-about .team-note--qc::before {
  background: var(--blue);
}

.page-about .team-note h3 {
  margin: 0 0 6px;
  font-size: 17px;
  line-height: 1.35;
  font-weight: 800;
}

.page-about .team-note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: #3b342d;
}

.page-about .team-figure {
  margin-top: 0;
}

/* ============ 版图 ============ */
.page-about .map-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin-top: 26px;
}

.page-about .map-figure {
  padding: 16px;
  border-radius: 24px 6px 24px 6px;
  background: rgba(248, 242, 230, 0.72);
  box-shadow: inset 0 0 0 1px rgba(21, 18, 16, 0.06);
}

.page-about .map-figure svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .map-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 10px 0 0;
  font-size: 12.5px;
  color: var(--grey);
}

.page-about .map-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.page-about .map-dot--hub {
  background: var(--green);
}

.page-about .map-dot--node {
  background: var(--red);
  margin-left: 10px;
}

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

.page-about .map-facts li {
  padding: 16px 18px;
  border-radius: 4px 18px 18px 18px;
  background: rgba(248, 242, 230, 0.86);
  box-shadow: inset 0 0 0 1px rgba(21, 18, 16, 0.06);
}

.page-about .map-facts__num {
  display: block;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--red-deep);
  margin-bottom: 6px;
}

.page-about .map-facts li p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: #3b342d;
}

.page-about .map-photo {
  margin-top: 24px;
}

/* ============ 荣誉 ============ */
.page-about .honor-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  margin-top: 26px;
}

.page-about .honor-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.page-about .honor-seal {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 148px;
  height: 148px;
  padding: 12px;
  border-radius: 50%;
  border: 2px solid var(--red);
  color: var(--red);
  text-align: center;
  transform: rotate(-7deg);
  background: rgba(196, 58, 47, 0.05);
}

.page-about .honor-seal--b {
  border-color: var(--gold);
  color: #8a6512;
  transform: rotate(5deg);
  background: rgba(232, 178, 58, 0.12);
}

.page-about .honor-seal--c {
  border-color: var(--blue);
  color: var(--blue);
  transform: rotate(-3deg);
  background: rgba(36, 83, 166, 0.07);
}

.page-about .honor-seal__year {
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-about .honor-seal__name {
  font-size: 13px;
  line-height: 1.45;
  font-weight: 700;
  padding: 0 4px;
}

.page-about .ages {
  padding: 22px 20px;
  border-radius: 24px 6px 24px 6px;
  background: rgba(239, 226, 198, 0.6);
}

.page-about .ages__title {
  margin: 0 0 16px;
  font-size: 17px;
  font-weight: 800;
}

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

.page-about .age {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr) 48px;
  align-items: center;
  gap: 10px;
}

.page-about .age__label {
  font-size: 13px;
  color: #4a4139;
}

.page-about .age__track {
  display: block;
  height: 10px;
  border-radius: 999px;
  background: rgba(21, 18, 16, 0.09);
  overflow: hidden;
}

.page-about .age__bar {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--gold);
}

.page-about .age__bar--a { width: 46%; background: var(--gold); }
.page-about .age__bar--b { width: 31%; background: var(--red); }
.page-about .age__bar--c { width: 14%; background: var(--blue); }
.page-about .age__bar--d { width: 9%; background: var(--grey); }

.page-about .age__num {
  font-size: 13px;
  text-align: right;
  color: var(--ink);
}

.page-about .ages__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(21, 18, 16, 0.2);
  font-size: 13.5px;
  line-height: 1.7;
  color: #4a4139;
}

/* ============ 合作 ============ */
.page-about .about-partner {
  border-top: 0;
  margin-top: clamp(20px, 3vw, 34px);
  padding: 0;
}

.page-about .about-partner__inner {
  position: relative;
  overflow: hidden;
  padding: clamp(32px, 5.5vw, 60px) clamp(22px, 4vw, 48px);
  border-radius: 30px 8px 30px 8px;
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(196, 58, 47, 0.55), transparent 62%),
    linear-gradient(160deg, #241f1b, var(--ink));
  color: var(--ivory);
}

.page-about .about-partner__inner::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -90px;
  width: 220px;
  height: 220px;
  border-radius: 52% 48% 40% 60% / 46% 54% 46% 54%;
  border: 2px dashed rgba(232, 178, 58, 0.4);
  pointer-events: none;
}

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

.page-about .about-partner h2 {
  margin: 12px 0 14px;
  font-size: clamp(26px, 4.6vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  font-weight: 900;
  max-width: 18em;
}

.page-about .about-partner .lead {
  color: rgba(248, 242, 230, 0.82);
  max-width: 48ch;
}

.page-about .about-partner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-partner__ghost {
  color: var(--ivory);
  border-color: rgba(248, 242, 230, 0.5);
}

.page-about .about-partner__links {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-partner__links a {
  display: inline-block;
  min-height: 44px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--gold-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 178, 58, 0.35);
}

.page-about .about-partner__links a:hover,
.page-about .about-partner__links a:focus-visible {
  color: var(--ivory);
  border-bottom-color: var(--ivory);
}

/* ============ 响应式 ============ */
@media (min-width: 700px) {
  .page-about .beats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .team-bar {
    flex-direction: row;
  }

  .page-about .team-seg {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-end;
    gap: 6px;
    min-height: 140px;
    padding: 18px;
  }

  .page-about .team-seg--dev { flex: 38 1 0; }
  .page-about .team-seg--ops { flex: 16 1 0; }
  .page-about .team-seg--care { flex: 24 1 0; }
  .page-about .team-seg--qc { flex: 8 1 0; }

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

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

@media (min-width: 980px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-about .about-body {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 68px);
  }

  .page-about .about-index {
    position: sticky;
    top: 40px;
  }

  .page-about .about-index__list {
    flex-direction: column;
    overflow: visible;
    gap: 4px;
  }

  .page-about .about-index__list a {
    width: 100%;
    border-radius: 12px;
    background: transparent;
    padding-left: 12px;
  }

  .page-about .about-index__list a:hover,
  .page-about .about-index__list a:focus-visible {
    background: rgba(232, 178, 58, 0.24);
  }

  .page-about .team-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
    gap: 32px;
  }

  .page-about .map-split {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: start;
    gap: 28px;
  }

  .page-about .beats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index__list a,
  .page-about .tl,
  .page-about .tl__sum {
    transition: none;
  }

  .page-about .honor-seal {
    transform: none;
  }
}
<<<END>>>