.page-about {
  --a-rail: 96px;
  --a-line: rgba(0, 229, 255, 0.28);
  --a-line-soft: rgba(154, 167, 199, 0.16);
  position: relative;
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumbs {
  padding: 18px 0 6px;
  background: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(44px, 7vw, 104px) 0 clamp(40px, 6vw, 76px);
  background:
    radial-gradient(120% 82% at 88% -12%, rgba(124, 77, 255, 0.32), transparent 62%),
    radial-gradient(96% 70% at 2% 0%, rgba(0, 229, 255, 0.16), transparent 58%),
    var(--ink);
  isolation: isolate;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: repeating-linear-gradient(114deg, rgba(0, 229, 255, 0.07) 0 1px, transparent 1px 38px);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 74%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 74%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
}

.page-about .about-hero__title {
  margin: 16px 0 0;
  font-size: clamp(38px, 7.6vw, 100px);
  line-height: 1.0;
  letter-spacing: -0.03em;
  font-weight: 900;
  font-style: italic;
  max-width: 16ch;
}

.page-about .about-hero__lede {
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  max-width: 62ch;
  color: var(--steel);
}

.page-about .about-hero__meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(32px, 5vw, 58px) 0 0;
  padding: 0;
  border: 1px solid var(--a-line-soft);
  background: var(--a-line-soft);
  max-width: 960px;
}

.page-about .about-hero__cell {
  background: rgba(10, 14, 23, 0.9);
  padding: 16px 18px 18px;
}

.page-about .about-hero__cell dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-about .about-hero__cell dd {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2.2vw, 23px);
  font-weight: 700;
  color: var(--cyan);
}

/* ---------- 章节轨道 ---------- */
.page-about .about-track {
  position: relative;
  padding-bottom: clamp(24px, 4vw, 48px);
}

.page-about .about-chapter {
  position: relative;
  padding: clamp(44px, 7vw, 86px) 0;
}

.page-about .about-chapter + .about-chapter::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--gutter);
  right: var(--gutter);
  height: 1px;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(0, 229, 255, 0.4) 20%, rgba(124, 77, 255, 0.4) 52%, rgba(255, 107, 53, 0.28) 76%, transparent 100%);
  opacity: 0.6;
}

.page-about .about-chapter__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-chapter__rail {
  position: relative;
  padding-left: 30px;
  min-height: 22px;
}

.page-about .about-chapter__node {
  position: relative;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--ink);
  background: var(--cyan);
  padding: 5px 11px;
  clip-path: var(--cut-sm);
}

.page-about .about-chapter__node::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 1px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.65);
}

.page-about .about-chapter__body {
  max-width: 72ch;
}

.page-about .about-chapter--wide .about-chapter__body {
  max-width: none;
}

.page-about .about-chapter__title {
  margin: 0 0 16px;
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--paper);
}

.page-about .about-chapter__lead {
  margin: 0 0 26px;
  max-width: 64ch;
  color: var(--steel);
  font-size: 16px;
  line-height: 1.7;
}

/* ---------- 01 主张 ---------- */
.page-about .about-claim {
  padding: clamp(26px, 4vw, 48px);
  margin-bottom: clamp(26px, 4vw, 42px);
  border-left: 4px solid var(--lava);
  color: var(--paper-ink);
}

.page-about .about-claim__title {
  margin: 0 0 18px;
  font-size: clamp(28px, 5vw, 60px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  font-weight: 900;
  max-width: 18ch;
  color: var(--paper-ink);
}

.page-about .about-claim__text {
  margin: 0;
  max-width: 56ch;
  font-size: 16px;
  line-height: 1.75;
  color: #3B3F4A;
}

.page-about .about-audience {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-about .about-audience__item {
  padding: 22px 22px 24px;
  background: rgba(27, 34, 51, 0.55);
  border: 1px solid var(--hairline);
  border-left: 2px solid var(--violet);
}

.page-about .about-audience__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mint);
  margin-bottom: 10px;
}

.page-about .about-audience__name {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-audience__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 02 赛季 ---------- */
.page-about .about-seasons {
  list-style: none;
  margin: 30px 0 0;
  padding: 0 0 0 32px;
  position: relative;
}

.page-about .about-seasons::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--violet) 55%, rgba(124, 77, 255, 0.12));
}

.page-about .about-seasons__item {
  position: relative;
  padding: 0 0 30px;
}

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

.page-about .about-seasons__item::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 5px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.5);
}

.page-about .about-seasons__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--lava);
  margin-bottom: 6px;
}

.page-about .about-seasons__title {
  margin: 0 0 8px;
  font-size: clamp(18px, 2.2vw, 23px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .about-seasons__desc {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel);
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: 0;
}

.page-about .about-figure .frame {
  overflow: hidden;
}

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

.page-about .about-figure__cap {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--steel);
}

.page-about .about-figure--banner {
  margin: 6px 0 clamp(28px, 4vw, 44px);
}

/* ---------- 03 团队 ---------- */
.page-about .about-roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-about .about-roles__item {
  padding: 24px 22px 26px;
  background: linear-gradient(150deg, rgba(0, 229, 255, 0.08), rgba(124, 77, 255, 0.06));
  border: 1px solid var(--glass-line);
  clip-path: var(--cut);
}

.page-about .about-roles__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
  margin-bottom: 14px;
}

.page-about .about-roles__name {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-roles__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--steel);
}

.page-about .about-roles__note {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--lava);
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel);
  max-width: 66ch;
}

/* ---------- 04 校验 ---------- */
.page-about .about-verify {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  grid-template-columns: 1fr;
  align-items: start;
}

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

.page-about .about-layers__item {
  position: relative;
  padding: 20px 22px 22px 24px;
  background: rgba(27, 34, 51, 0.62);
  border-left: 3px solid var(--lava);
}

.page-about .about-layers__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--lava);
  margin-bottom: 8px;
}

.page-about .about-layers__name {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-layers__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--steel);
}

.page-about .about-verify__note {
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: 18px 22px;
  background: rgba(0, 229, 255, 0.06);
  border: 1px dashed rgba(0, 229, 255, 0.3);
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper);
  max-width: 68ch;
}

/* ---------- 05 合作生态 ---------- */
.page-about .about-partners {
  display: grid;
  gap: clamp(24px, 3.6vw, 44px);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-about .about-partners__text p {
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--steel);
  max-width: 62ch;
}

.page-about .about-partners__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}

.page-about .about-partners__list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--hairline);
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
}

.page-about .about-partners__list li:first-child {
  border-top: 1px solid var(--hairline);
}

.page-about .about-partners__num {
  display: inline-block;
  min-width: 52px;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--cyan);
}

.page-about .about-partners__link {
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel);
}

.page-about .about-partners__link a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-honor {
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: clamp(22px, 3vw, 32px);
  background: var(--paper);
  color: var(--paper-ink);
  border-left: 4px solid var(--violet);
}

.page-about .about-honor__title {
  margin: 0 0 16px;
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 800;
  color: var(--paper-ink);
}

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

.page-about .about-honor__item {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(22, 24, 31, 0.18);
}

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

.page-about .about-honor__year {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--violet);
  min-width: 52px;
}

.page-about .about-honor__text {
  font-size: 15px;
  line-height: 1.6;
  color: #3B3F4A;
}

/* ---------- 06 合作路径 ---------- */
.page-about .about-routes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-about .about-routes__item {
  padding: 24px 22px 26px;
  background: rgba(27, 34, 51, 0.5);
  border-top: 2px solid var(--cyan);
}

.page-about .about-routes__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--violet);
  margin-bottom: 12px;
}

.page-about .about-routes__name {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-routes__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel);
}

.page-about .about-routes__text a,
.page-about .about-routes__more a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-routes__more {
  margin: 24px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel);
  max-width: 66ch;
}

/* ---------- 收束联系 ---------- */
.page-about .about-contact {
  position: relative;
  padding: clamp(44px, 6vw, 76px) 0 clamp(52px, 7vw, 90px);
  background:
    linear-gradient(135deg, rgba(0, 229, 255, 0.1), rgba(124, 77, 255, 0.12) 55%, rgba(255, 107, 53, 0.08)),
    var(--ink-deep);
}

.page-about .about-contact::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet) 48%, var(--lava));
}

.page-about .about-contact__inner {
  display: grid;
  gap: clamp(24px, 3.6vw, 48px);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-about .about-contact__title {
  margin: 0 0 14px;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--paper);
  max-width: 18ch;
}

.page-about .about-contact__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--steel);
  max-width: 46ch;
}

.page-about .about-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.page-about .about-contact__item {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  background: rgba(6, 9, 17, 0.86);
}

.page-about .about-contact__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-about .about-contact__val {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(0, 229, 255, 0.35);
  padding: 6px 14px;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-about .about-contact__val:hover,
.page-about .about-contact__val:focus-visible {
  border-color: var(--cyan);
  color: var(--paper);
}

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

/* ---------- 桌面栅格 ---------- */
@media (min-width: 640px) {
  .page-about .about-hero__meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-audience,
  .page-about .about-roles,
  .page-about .about-routes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }
}

@media (min-width: 900px) {
  .page-about .about-chapter__grid {
    grid-template-columns: var(--a-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }

  .page-about .about-chapter__rail::after {
    content: "";
    position: absolute;
    left: 6px;
    top: 30px;
    bottom: -88px;
    width: 1px;
    background: linear-gradient(180deg, rgba(0, 229, 255, 0.5), rgba(124, 77, 255, 0.28) 55%, transparent 100%);
  }

  .page-about .about-chapter:last-child .about-chapter__rail::after {
    display: none;
  }

  .page-about .about-verify {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-about .about-layers__item:nth-child(2) {
    margin-left: 26px;
  }

  .page-about .about-layers__item:nth-child(3) {
    margin-left: 52px;
  }

  .page-about .about-partners {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  }

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

@media (min-width: 1080px) {
  .page-about .about-chapter--claim .about-chapter__body {
    max-width: none;
  }
}

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