.page-about {
  --about-line: rgba(0, 229, 255, .16);
  --about-soft: rgba(167, 176, 192, .14);
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-about .container {
  width: 100%;
  max-width: 1180px;
  margin-inline: auto;
  padding-inline: clamp(18px, 4vw, 48px);
}

.page-about .section {
  padding-block: clamp(46px, 7vw, 96px);
}

/* ---------- 面包屑 ---------- */
.page-about .about-crumb {
  padding-top: clamp(18px, 3vw, 32px);
}

.page-about .about-crumb .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--haze);
}

.page-about .about-crumb .breadcrumb li + li::before {
  content: "/";
  margin-inline-end: .4rem;
  color: rgba(0, 229, 255, .55);
}

.page-about .about-crumb .breadcrumb a {
  color: var(--haze);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

.page-about .about-crumb .breadcrumb a:hover,
.page-about .about-crumb .breadcrumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-about .about-crumb .breadcrumb [aria-current="page"] {
  color: var(--white);
}

/* ---------- 首屏分屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding-top: clamp(24px, 4vw, 48px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset-inline-start: -16%;
  inset-block-start: -14%;
  width: min(560px, 84vw);
  height: min(560px, 84vw);
  background: radial-gradient(circle at 50% 50%, rgba(108, 92, 231, .28), transparent 68%);
  pointer-events: none;
  filter: blur(4px);
}

.page-about .about-hero__split {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 56px);
  align-items: start;
}

.page-about .about-hero__lead {
  min-width: 0;
}

.page-about .about-hero__eyebrow {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-hero__eyebrow::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 1px;
  margin-inline-end: 10px;
  vertical-align: middle;
  background: var(--cyan);
}

.page-about .about-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 6vw, 66px);
  line-height: 1.04;
  letter-spacing: -.035em;
  color: var(--white);
  text-wrap: balance;
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--cyan);
  text-shadow: 0 0 26px rgba(0, 229, 255, .32);
}

.page-about .about-hero__dek {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--text);
}

.page-about .about-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__jump a {
  display: inline-block;
  padding-block: 4px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, .38);
  transition: color .24s var(--ease), border-color .24s var(--ease), letter-spacing .24s var(--ease);
}

.page-about .about-hero__jump a:hover,
.page-about .about-hero__jump a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
  letter-spacing: .11em;
}

.page-about .about-hero__fig {
  margin: clamp(26px, 3vw, 38px) 0 0;
  overflow: hidden;
  border: 1px solid var(--about-line);
  background: var(--ink-2);
  clip-path: polygon(0 0, 100% 0, 100% 88%, 89% 100%, 0 100%);
}

.page-about .about-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(1.06) contrast(1.04);
}

/* ---------- 首屏数字板 ---------- */
.page-about .about-hud {
  position: relative;
  min-width: 0;
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--about-line);
  background: linear-gradient(165deg, rgba(12, 20, 36, .97), rgba(7, 11, 18, .97));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-about .about-hud::after {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  width: 68px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.page-about .about-hud__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--haze);
}

.page-about .about-hud__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hud__row {
  display: grid;
  grid-template-columns: minmax(58px, auto) minmax(0, 1fr);
  gap: 4px 14px;
  align-items: baseline;
  margin-inline: -10px;
  padding: 11px 10px;
  border-bottom: 1px solid var(--about-soft);
  transition: background-color .26s var(--ease), box-shadow .26s var(--ease);
}

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

.page-about .about-hud__row:hover {
  background: rgba(0, 229, 255, .06);
  box-shadow: inset 2px 0 0 var(--cyan);
}

.page-about .about-hud__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  white-space: nowrap;
  color: var(--cyan);
}

.page-about .about-hud__val {
  min-width: 0;
  font-size: 14px;
  line-height: 1.62;
  color: var(--text);
}

.page-about .about-hud__val b {
  font-weight: 700;
  color: var(--white);
}

.page-about .about-hud__foot {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--haze);
}

/* ---------- 章节标题通用 ---------- */
.page-about .about-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 46px);
  max-width: 60ch;
}

.page-about .about-head__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-about .about-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.14;
  letter-spacing: -.03em;
  color: var(--white);
  text-wrap: balance;
}

.page-about .about-head__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--haze);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  background: var(--ink-2);
  border-block: 1px solid var(--about-soft);
}

.page-about .about-timeline__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-about .about-timeline__aside {
  min-width: 0;
}

.page-about .about-timeline__fig {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--about-line);
  clip-path: polygon(0 0, 100% 0, 100% 92%, 86% 100%, 0 100%);
  background: var(--ink);
}

.page-about .about-timeline__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-tl__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(4px, 1vw, 8px);
  min-width: 0;
}

.page-about .about-tl__item {
  position: relative;
  padding-inline-start: clamp(24px, 4vw, 42px);
  padding-block: clamp(12px, 2vw, 18px);
  border-inline-start: 1px solid var(--about-soft);
  transition: border-color .3s var(--ease), background-color .3s var(--ease);
}

.page-about .about-tl__item::before {
  content: "";
  position: absolute;
  inset-inline-start: -5px;
  inset-block-start: clamp(26px, 3vw, 34px);
  width: 9px;
  height: 9px;
  background: var(--ink-2);
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
  transition: background-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-about .about-tl__item:hover,
.page-about .about-tl__item:focus-within {
  border-inline-start-color: var(--cyan);
  background: linear-gradient(90deg, rgba(0, 229, 255, .07), transparent 74%);
}

.page-about .about-tl__item:hover::before,
.page-about .about-tl__item:focus-within::before {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0, 229, 255, .14);
}

.page-about .about-tl__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 4.4vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: rgba(243, 247, 255, .92);
  transition: color .3s var(--ease), text-shadow .3s var(--ease);
}

.page-about .about-tl__year:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 4px;
}

.page-about .about-tl__item:hover .about-tl__year,
.page-about .about-tl__item:focus-within .about-tl__year {
  color: var(--cyan);
  text-shadow: 0 0 20px rgba(0, 229, 255, .3);
}

.page-about .about-tl__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(15px, 1.9vw, 18px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-about .about-tl__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text);
}

.page-about .about-tl__more {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--haze);
  transition: max-height .38s var(--ease), opacity .3s var(--ease), margin-top .3s var(--ease);
}

.page-about .about-tl__item:hover .about-tl__more,
.page-about .about-tl__item:focus-within .about-tl__more {
  max-height: 200px;
  opacity: 1;
  margin-top: 10px;
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
}

.page-about .about-team__card {
  position: relative;
  min-width: 0;
  padding: clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--about-soft);
  background: var(--card);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: transform .32s var(--ease), border-color .32s var(--ease), background-color .32s var(--ease);
}

.page-about .about-team__card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  background: linear-gradient(180deg, rgba(0, 229, 255, .07), transparent 70%), var(--card);
}

.page-about .about-team__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.page-about .about-team__num span {
  margin-inline-start: 3px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--haze);
}

.page-about .about-team__role {
  margin: 14px 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-team__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--haze);
}

/* ---------- 能力矩阵 ---------- */
.page-about .about-cap-sec {
  background: var(--ink-2);
  border-block: 1px solid var(--about-soft);
}

.page-about .about-cap {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
}

.page-about .about-cap__card {
  position: relative;
  isolation: isolate;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow: hidden;
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--about-soft);
  border-radius: var(--radius);
  background: var(--card);
  transition: border-color .32s var(--ease), transform .32s var(--ease);
}

.page-about .about-cap__card::before {
  content: "";
  position: absolute;
  z-index: -1;
  inline-size: 200px;
  block-size: 200px;
  inset-block-start: -76px;
  inset-inline-end: -56px;
  background: var(--cap, var(--cyan));
  opacity: .1;
  border-radius: 58% 42% 46% 54% / 52% 46% 54% 48%;
  transition: transform .5s var(--ease), opacity .32s var(--ease);
}

.page-about .about-cap__card:hover,
.page-about .about-cap__card:focus-within {
  border-color: var(--cap, var(--cyan));
  transform: translateY(-3px);
}

.page-about .about-cap__card:hover::before,
.page-about .about-cap__card:focus-within::before {
  transform: scale(1.16) rotate(14deg);
  opacity: .18;
}

.page-about .about-cap__card:nth-child(1) { --cap: var(--cyan); }
.page-about .about-cap__card:nth-child(2) { --cap: var(--flame); }
.page-about .about-cap__card:nth-child(3) { --cap: var(--mint); }
.page-about .about-cap__card:nth-child(4) { --cap: var(--violet); }
.page-about .about-cap__card:nth-child(5) { --cap: var(--azure); }

.page-about .about-cap__tag {
  align-self: flex-start;
  padding: 4px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cap, var(--cyan));
  border: 1px solid currentColor;
  border-radius: 2px;
}

.page-about .about-cap__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--white);
}

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

.page-about .about-cap__scene {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cap, var(--cyan));
  transition: max-height .36s var(--ease), opacity .28s var(--ease), margin-top .3s var(--ease);
}

.page-about .about-cap__card:hover .about-cap__scene,
.page-about .about-cap__card:focus-within .about-cap__scene {
  max-height: 120px;
  opacity: 1;
  margin-top: 2px;
}

/* ---------- 合作生态 ---------- */
.page-about .about-eco__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-about .about-eco__fig {
  position: relative;
  margin: 0;
  min-width: 0;
}

.page-about .about-eco__fig::before {
  content: "";
  position: absolute;
  inset: 8% 8%;
  background: radial-gradient(circle, rgba(56, 242, 196, .22), transparent 66%);
  filter: blur(28px);
  pointer-events: none;
}

.page-about .about-eco__fig img {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 46% 54% 42% 58% / 54% 44% 56% 46%;
  border: 1px solid var(--about-line);
}

.page-about .about-eco__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-eco__chip {
  padding: 8px 14px;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--text);
  border: 1px solid var(--about-line);
  background: rgba(0, 229, 255, .05);
  transition: background-color .24s var(--ease), color .24s var(--ease), border-color .24s var(--ease);
}

.page-about .about-eco__chip:hover {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.page-about .about-awards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-about .about-award {
  position: relative;
  min-width: 0;
  padding: 18px 20px;
  border: 1px solid var(--about-soft);
  background: linear-gradient(135deg, rgba(255, 77, 61, .09), transparent 62%), var(--card);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.page-about .about-award:hover,
.page-about .about-award:focus-within {
  border-color: var(--flame);
  box-shadow: inset 0 0 0 1px rgba(255, 77, 61, .22);
}

.page-about .about-award__year {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--flame);
}

.page-about .about-award__name {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-award__cat {
  display: block;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 12.5px;
  color: var(--haze);
  transition: max-height .32s var(--ease), opacity .26s var(--ease), margin-top .3s var(--ease);
}

.page-about .about-award:hover .about-award__cat,
.page-about .about-award:focus-within .about-award__cat {
  max-height: 40px;
  opacity: 1;
  margin-top: 8px;
}

/* ---------- 服务对象 ---------- */
.page-about .about-scene__list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-soft);
}

.page-about .about-scene__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding-block: clamp(18px, 2.4vw, 26px);
  padding-inline: 0;
  border-bottom: 1px solid var(--about-soft);
  transition: background-color .3s var(--ease), padding-inline-start .3s var(--ease);
}

.page-about .about-scene__item:hover {
  background: rgba(0, 229, 255, .045);
  padding-inline-start: 12px;
}

.page-about .about-scene__who {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-scene__what {
  margin: 0;
  min-width: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--haze);
}

/* ---------- 结尾咨询 ---------- */
.page-about .about-cta {
  position: relative;
  overflow: hidden;
  padding-block: clamp(44px, 6vw, 84px);
  background: radial-gradient(120% 150% at 8% 0%, rgba(108, 92, 231, .3), transparent 62%), var(--ink-2);
  border-top: 1px solid var(--about-line);
}

.page-about .about-cta::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-start: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--violet), var(--azure) 52%, var(--cyan));
  opacity: .85;
}

.page-about .about-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  align-items: center;
}

.page-about .about-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.16;
  letter-spacing: -.03em;
  color: var(--white);
}

.page-about .about-cta__text {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--text);
}

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

/* ---------- 媒体查询 ---------- */
@media (min-width: 620px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-about .about-cap {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-about .about-cap > :nth-child(1) { grid-column: span 4; }
  .page-about .about-cap > :nth-child(2) { grid-column: span 2; margin-top: clamp(20px, 3vw, 42px); }
  .page-about .about-cap > :nth-child(3) { grid-column: span 2; }
  .page-about .about-cap > :nth-child(4) { grid-column: span 2; margin-top: clamp(14px, 2vw, 28px); }
  .page-about .about-cap > :nth-child(5) { grid-column: span 2; }
}

@media (min-width: 820px) {
  .page-about .about-scene__item {
    grid-template-columns: minmax(170px, .52fr) minmax(0, 1.48fr);
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-about .about-eco__grid {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
  }

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .6fr);
  }
}

@media (min-width: 940px) {
  .page-about .about-hero__split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

@media (min-width: 980px) {
  .page-about .about-timeline__grid {
    grid-template-columns: minmax(0, .86fr) minmax(0, 1.14fr);
    gap: clamp(36px, 5vw, 64px);
  }
}

@media (min-width: 1040px) {
  .page-about .about-team__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: .01ms !important;
  }
}