.page-about {
  --about-cut: 16px;
  background: var(--carbon);
  color: var(--white);
  overflow-x: clip;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

/* ---------- 封面 ---------- */
.page-about .about-cover {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 clamp(42px, 7vw, 88px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-about .about-cover::before {
  content: "";
  position: absolute;
  top: -140px;
  right: -160px;
  width: min(620px, 72vw);
  height: min(620px, 72vw);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(198, 255, 0, 0.14), transparent 62%);
  pointer-events: none;
}

.page-about .about-cover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--lime), var(--ice) 45%, transparent 88%);
  opacity: 0.75;
}

.page-about .about-cover .breadcrumb {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-about .about-cover__title {
  margin: 14px 0 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-size: clamp(32px, 7vw, 88px);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.page-about .about-cover__lead {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  letter-spacing: 0.01em;
  color: var(--text-dim);
}

.page-about .about-cover__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(14px, 2vw, 20px) clamp(14px, 2vw, 22px);
  background: var(--panel-deep);
}

.page-about .about-meta__k {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--text-faint);
}

.page-about .about-meta__v {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 500;
  line-height: 1.1;
  color: var(--lime);
}

.page-about .about-meta:nth-child(2) .about-meta__v {
  color: var(--ice);
}

.page-about .about-meta:nth-child(4) .about-meta__v {
  color: var(--mint);
}

/* ---------- 主体骨架 ---------- */
.page-about .about-body {
  padding: clamp(34px, 6vw, 72px) 0 clamp(52px, 8vw, 110px);
}

.page-about .about-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 5vw, 46px);
}

.page-about .about-toc {
  padding-left: 14px;
  border-left: 2px solid var(--line);
}

.page-about .about-toc__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--text-faint);
}

.page-about .toc__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .toc__link {
  display: inline-block;
  padding: 4px 0;
  font-size: 14px;
  color: var(--text-dim);
  text-decoration: none;
  transition: color var(--speed) ease;
}

.page-about .toc__link:hover,
.page-about .toc__link.is-visible {
  color: var(--lime);
}

/* ---------- 章节通用 ---------- */
.page-about .about-chapter {
  padding-top: clamp(28px, 4.5vw, 52px);
  scroll-margin-top: 96px;
}

.page-about .about-chapter + .about-chapter {
  margin-top: clamp(34px, 5vw, 62px);
  border-top: 1px solid var(--line);
}

.page-about .about-chapter__title {
  margin: 10px 0 0;
  max-width: 26ch;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.3vw, 40px);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.012em;
}

.page-about .about-chapter__lead {
  margin: 14px 0 0;
  max-width: 70ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--text-dim);
}

/* ---------- 品牌起点 ---------- */
.page-about .about-origin {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  margin-top: clamp(20px, 3vw, 32px);
}

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

.page-about .about-origin__media .media__frame {
  overflow: hidden;
  background: var(--panel-deep);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-about .about-origin__media .media__img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.08);
}

.page-about .about-origin__text p {
  margin: 0 0 1em;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--text-dim);
}

.page-about .about-origin__text p:last-of-type {
  margin-bottom: 0;
}

.page-about .about-origin__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-about .about-team__left {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-about .about-team__stat {
  position: relative;
  padding: clamp(18px, 2.4vw, 24px);
  background: linear-gradient(140deg, rgba(198, 255, 0, 0.09), transparent 62%), var(--panel-deep);
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-about .about-team__stat--ice {
  background: linear-gradient(140deg, rgba(77, 208, 225, 0.1), transparent 62%), var(--panel-deep);
  border-left-color: var(--ice);
}

.page-about .about-team__num {
  font-family: var(--font-mono);
  font-size: clamp(36px, 6vw, 58px);
  font-weight: 500;
  line-height: 1;
  color: var(--lime);
}

.page-about .about-team__stat--ice .about-team__num {
  color: var(--ice);
}

.page-about .about-team__unit {
  margin-left: 6px;
  font-size: 15px;
  color: var(--text-faint);
}

.page-about .about-team__label {
  margin: 12px 0 0;
  font-size: clamp(16px, 1.8vw, 18px);
  font-weight: 500;
  color: var(--white);
}

.page-about .about-team__desc {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-about .about-team__media {
  margin: 4px 0 0;
}

.page-about .about-team__media .media__frame {
  overflow: hidden;
  background: var(--panel-deep);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-about .about-team__media .media__img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.68) contrast(1.05);
}

.page-about .about-roles {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-about .about-role {
  background: var(--panel-deep);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: border-color var(--speed) ease, background var(--speed) ease;
}

.page-about .about-role[open] {
  background: var(--panel);
  border-color: rgba(198, 255, 0, 0.42);
}

.page-about .about-role__sum {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-role__sum::marker {
  content: "";
}

.page-about .about-role__name {
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 500;
  color: var(--white);
}

.page-about .about-role__flag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  transition: color var(--speed) ease;
}

.page-about .about-role[open] .about-role__flag {
  color: var(--lime);
}

.page-about .about-role__desc {
  margin: 0;
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.5vw, 40px);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-about .about-timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 34px;
  list-style: none;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--lime), var(--ice) 55%, rgba(46, 58, 70, 0.25));
}

.page-about .about-node {
  position: relative;
  padding-bottom: clamp(22px, 3vw, 34px);
}

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

.page-about .about-node::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 6px;
  width: 12px;
  height: 12px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--carbon);
  border: 2px solid var(--ice);
}

.page-about .about-node--now::before {
  border-color: var(--lime);
  box-shadow: 0 0 0 5px rgba(198, 255, 0, 0.14);
}

.page-about .about-node__season {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--lime);
}

.page-about .about-node__title {
  margin: 6px 0 0;
  font-size: clamp(16px, 1.8vw, 19px);
  font-weight: 500;
  color: var(--white);
}

.page-about .about-node__text {
  margin: 6px 0 0;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-about .about-spec {
  padding: clamp(18px, 2.4vw, 26px);
  background: linear-gradient(160deg, var(--panel) 0%, var(--panel-deep) 100%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-about .about-spec__title {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--text-faint);
}

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

.page-about .about-spec__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(46, 58, 70, 0.9);
}

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

.page-about .about-spec__k {
  font-size: 13.5px;
  color: var(--text-dim);
}

.page-about .about-spec__v {
  font-family: var(--font-mono);
  font-size: 14px;
  text-align: right;
  color: var(--lime);
}

/* ---------- 覆盖 ---------- */
.page-about .about-coverage {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 32px);
  margin-top: clamp(22px, 3vw, 34px);
}

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

.page-about .about-coverage__media .media__frame {
  overflow: hidden;
  background: var(--panel-deep);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-about .about-coverage__media .media__img {
  display: block;
  width: 100%;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.94);
}

.page-about .about-coverage__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-cstat {
  padding: clamp(16px, 2vw, 22px);
  background: var(--panel-deep);
}

.page-about .about-cstat__v {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.6vw, 38px);
  font-weight: 500;
  line-height: 1;
  color: var(--white);
}

.page-about .about-cstat__v em {
  margin-left: 4px;
  font-style: normal;
  font-size: 0.42em;
  color: var(--text-faint);
}

.page-about .about-cstat__l {
  display: block;
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-about .about-coverage + .about-chapter__lead {
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 合作与荣誉 ---------- */
.page-about .about-partners {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-about .about-partner {
  padding: 18px;
  background: var(--panel-deep);
  border: 1px solid var(--line);
  border-top: 2px solid var(--ice);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.page-about .about-partner__n {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 500;
  line-height: 1;
  color: var(--ice);
}

.page-about .about-partner__t {
  margin: 14px 0 6px;
  font-size: 15px;
  font-weight: 500;
  color: var(--white);
}

.page-about .about-partner__d {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-about .about-honors {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-about .about-honor {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid rgba(198, 255, 0, 0.32);
  background: linear-gradient(100deg, rgba(198, 255, 0, 0.08), transparent 72%);
}

.page-about .about-honor__yr {
  font-family: var(--font-mono);
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--lime);
}

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

/* ---------- 价值观 ---------- */
.page-about .about-values {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(22px, 3vw, 34px);
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .about-value {
  position: relative;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--panel-deep);
}

.page-about .about-value::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 46px;
  height: 3px;
  background: var(--lime);
}

.page-about .about-value:nth-child(2)::after {
  background: var(--ice);
}

.page-about .about-value:nth-child(3)::after {
  background: var(--amber);
}

.page-about .about-value__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--text-faint);
}

.page-about .about-value__t {
  margin: 14px 0 10px;
  font-size: clamp(18px, 2.2vw, 24px);
  font-weight: 500;
  color: var(--white);
}

.page-about .about-value__d {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  padding-top: clamp(34px, 5vw, 62px);
}

.page-about .about-next__panel {
  padding: clamp(24px, 4vw, 48px);
  background: linear-gradient(135deg, var(--panel) 0%, var(--panel-deep) 100%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-about .about-next__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 300;
  line-height: 1.22;
  letter-spacing: -0.012em;
}

.page-about .about-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-cover__meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-origin {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

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

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

@media (min-width: 960px) {
  .page-about .about-timeline-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: start;
  }

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

@media (min-width: 1024px) {
  .page-about .about-body__grid {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
    align-items: start;
  }

  .page-about .about-toc {
    position: sticky;
    top: 92px;
    padding-left: 0;
    border-left: none;
  }

  .page-about .toc__list {
    flex-direction: column;
    gap: 2px;
  }

  .page-about .toc__link {
    position: relative;
    padding: 7px 0 7px 16px;
    font-size: 15px;
  }

  .page-about .toc__link::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 1px;
    background: var(--line);
    transform: translateY(-50%);
    transition: width var(--speed) ease, background var(--speed) ease;
  }

  .page-about .toc__link.is-visible::before {
    width: 11px;
    background: var(--lime);
  }
}
<<<END>>>