.page-about {
  --about-pad: 72px;
  --about-text: #dce1ee;
  --about-soft: rgba(220, 225, 238, .78);
  --about-panel: rgba(34, 48, 92, .42);
  position: relative;
  overflow-x: hidden;
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--head-space) + 20px) 0 72px;
  background:
    radial-gradient(115% 85% at 86% -5%, rgba(201, 162, 39, .22), rgba(11, 15, 26, 0) 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--indigo) 100%);
  border-bottom: 1px solid var(--line-gold);
}

.page-about .about-hero__slash {
  position: absolute;
  top: -28%;
  right: 11%;
  width: 1px;
  height: 158%;
  background: linear-gradient(180deg, transparent, var(--gold-light) 38%, rgba(63, 197, 214, .65) 72%, transparent);
  transform: rotate(12deg);
  opacity: .5;
  pointer-events: none;
}

.page-about .about-hero__glow {
  position: absolute;
  left: -12%;
  bottom: -30%;
  width: 46%;
  height: 62%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 138, 61, .16), rgba(255, 138, 61, 0) 70%);
  pointer-events: none;
}

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

.page-about .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--mist);
}

.page-about .breadcrumb__link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 197, 214, .35);
}

.page-about .breadcrumb__link:hover,
.page-about .breadcrumb__link:focus-visible {
  color: var(--gold-light);
  border-bottom-color: var(--gold-light);
}

.page-about .breadcrumb__sep {
  color: rgba(154, 163, 189, .5);
}

.page-about .breadcrumb__current {
  color: var(--cream);
}

.page-about .breadcrumb__version {
  margin-left: 4px;
  padding: 2px 10px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gold-light);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-pill);
}

.page-about .about-hero__kicker {
  margin: 30px 0 14px;
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--amber);
  text-transform: uppercase;
}

.page-about .about-hero__title {
  margin: 0;
  max-width: 16em;
  font-size: clamp(29px, 5vw, 56px);
  line-height: 1.24;
  font-weight: 700;
  color: var(--cream);
}

.page-about .about-hero__lede {
  margin: 26px 0 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--about-soft);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 22px;
  margin: 46px 0 0;
  padding: 26px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .about-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .about-hero__num {
  align-self: flex-start;
  padding-bottom: 4px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--gold-light);
  border-bottom: 2px solid var(--gold-dark);
}

.page-about .about-hero__label {
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.page-about .about-block {
  padding: var(--about-pad) 0;
}

.page-about .about-kicker {
  margin: 0 0 14px;
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--amber);
  text-transform: uppercase;
}

.page-about .about-title {
  margin: 0;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1.32;
  font-weight: 700;
  color: var(--cream);
}

.page-about .about-lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--about-soft);
}

/* 品牌起点 */
.page-about .about-story {
  background: var(--ink);
}

.page-about .about-split {
  display: grid;
  gap: 40px;
}

.page-about .about-prose {
  margin-top: 26px;
}

.page-about .about-prose p {
  margin: 0 0 20px;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.82;
  color: var(--about-text);
}

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

.page-about .about-aside {
  position: relative;
  padding: 28px 26px 30px;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(150deg, rgba(201, 162, 39, .16), rgba(20, 31, 61, .58) 58%),
    rgba(34, 48, 92, .38);
  backdrop-filter: blur(10px);
}

.page-about .about-aside::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 30px;
  width: 3px;
  height: 58px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--gold-light), var(--gold-dark));
}

.page-about .about-aside__label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-about .about-aside__cn {
  margin: 0;
  font-size: 26px;
  line-height: 1.3;
  color: var(--cream);
}

.page-about .about-aside__en {
  margin: 6px 0 0;
  font-size: 15px;
  letter-spacing: .22em;
  color: var(--gold-light);
}

.page-about .about-aside__text {
  margin: 18px 0 0;
  padding-top: 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-soft);
  border-top: 1px solid var(--line);
}

/* 时间轴 */
.page-about .about-tl {
  background:
    repeating-linear-gradient(90deg, rgba(154, 163, 189, .05) 0 1px, transparent 1px 84px),
    linear-gradient(180deg, var(--indigo) 0%, var(--ink) 100%);
  border-top: 1px solid var(--line);
}

.page-about .about-tl__figure {
  margin: 36px 0 44px;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .about-tl__figure img {
  display: block;
  width: 100%;
  height: clamp(190px, 25vw, 330px);
  object-fit: cover;
}

.page-about .about-tl__list {
  position: relative;
  margin: 0;
  padding: 4px 0 0 32px;
  list-style: none;
}

.page-about .about-tl__list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--gold-dark), var(--gold) 45%, var(--gold-light) 78%, var(--cyan));
  opacity: .7;
}

.page-about .about-tl__item {
  position: relative;
  padding-bottom: 36px;
}

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

.page-about .about-tl__item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 9px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold-dark);
  box-shadow: 0 0 0 4px rgba(138, 106, 18, .18);
  transition: background .3s var(--ease), box-shadow .3s var(--ease);
}

.page-about .about-tl__item.is-visible::before {
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, .2);
}

.page-about .about-tl__item--now::before,
.page-about .about-tl__item--now.is-visible::before {
  background: var(--gold-light);
  box-shadow: 0 0 0 4px rgba(63, 197, 214, .24), 0 0 18px rgba(242, 213, 126, .45);
}

.page-about .about-tl__year {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 12px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--gold-light);
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-pill);
}

.page-about .about-tl__title {
  margin: 0 0 8px;
  font-size: 19px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--cream);
}

.page-about .about-tl__text {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-soft);
}

/* 团队 */
.page-about .about-team {
  background: var(--ink);
}

.page-about .about-team__grid {
  display: grid;
  gap: 34px;
  margin-top: 38px;
}

.page-about .about-team__figure {
  margin: 0;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: clamp(200px, 42vw, 320px);
  object-fit: cover;
}

.page-about .about-team__subtitle {
  margin: 0 0 18px;
  font-size: 17px;
  font-weight: 700;
  color: var(--gold-light);
}

.page-about .about-bars {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-about .about-bar {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-about .about-bar__name {
  flex: 0 0 6.4em;
  font-size: 14px;
  color: var(--about-text);
}

.page-about .about-bar__track {
  flex: 1 1 auto;
  height: 10px;
  border-radius: var(--radius-pill);
  background: rgba(154, 163, 189, .14);
  overflow: hidden;
}

.page-about .about-bar__fill {
  display: block;
  height: 100%;
  border-radius: var(--radius-pill);
}

.page-about .about-bar__fill--a {
  width: 39.5%;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold));
}

.page-about .about-bar__fill--b {
  width: 20.9%;
  background: linear-gradient(90deg, rgba(63, 197, 214, .55), var(--cyan));
}

.page-about .about-bar__fill--c {
  width: 39.6%;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
}

.page-about .about-bar__num {
  flex: 0 0 2.6em;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--gold-light);
}

.page-about .about-team__note {
  margin: 24px 0 0;
  padding-top: 20px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-soft);
  border-top: 1px solid var(--line);
}

/* 服务能力 */
.page-about .about-cap {
  background: linear-gradient(180deg, var(--indigo) 0%, var(--ink) 100%);
  border-top: 1px solid var(--line);
}

.page-about .about-cap__grid {
  display: grid;
  gap: 46px;
  margin-top: 44px;
}

.page-about .about-rings {
  position: relative;
  width: 100%;
  max-width: 380px;
  aspect-ratio: 1 / 1;
  margin: 0 auto;
}

.page-about .about-rings__ring {
  position: absolute;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 14px;
  border-radius: 50%;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--about-text);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.page-about .about-rings__ring--outer {
  inset: 0;
  border: 1px solid var(--line-gold);
  background: radial-gradient(circle at 50% 50%, rgba(201, 162, 39, .07), rgba(201, 162, 39, 0) 68%);
}

.page-about .about-rings__ring--mid {
  inset: 14%;
  border: 1px dashed rgba(63, 197, 214, .42);
}

.page-about .about-rings__ring--core {
  inset: 28%;
  align-items: center;
  padding-top: 0;
  text-align: center;
  border: 1px solid var(--gold);
  background: radial-gradient(circle at 50% 28%, rgba(201, 162, 39, .34), rgba(201, 162, 39, .06) 72%);
  color: var(--cream);
}

.page-about .about-rings__ring--core span {
  max-width: 8em;
  line-height: 1.55;
}

.page-about .about-rings__ring:hover {
  transform: scale(1.02);
  border-color: var(--gold-light);
}

.page-about .about-cap__list dl {
  margin: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-cap__row {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .about-cap__row dt {
  margin-bottom: 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--gold-light);
}

.page-about .about-cap__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-soft);
}

.page-about .about-standard {
  margin-top: 52px;
  padding: 28px 24px;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, rgba(201, 162, 39, .14), rgba(34, 48, 92, .52));
}

.page-about .about-standard__title {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--cream);
}

.page-about .about-standard__text {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-soft);
}

.page-about .about-standard__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: 22px 0 0;
  padding: 20px 0 0;
  list-style: none;
  font-size: 14px;
  color: var(--mist);
  border-top: 1px solid var(--line);
}

.page-about .about-standard__meta li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.page-about .about-standard__num {
  font-size: 20px;
  color: var(--gold-light);
}

.page-about .about-ecosystem {
  margin-top: 34px;
}

.page-about .about-ecosystem__label {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-about .about-ecosystem__list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-ecosystem__item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 18px;
  font-size: 15px;
  color: var(--about-text);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(11, 15, 26, .5);
}

.page-about .about-ecosystem__num {
  font-size: 20px;
  color: var(--gold-light);
}

/* 区域运营 */
.page-about .about-region {
  background:
    radial-gradient(120% 60% at 18% 0%, rgba(63, 197, 214, .1), rgba(11, 15, 26, 0) 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--indigo) 100%);
  border-top: 1px solid var(--line);
}

.page-about .about-region__figure {
  margin: 36px 0 42px;
  border: 1px solid var(--line-gold);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-about .about-region__figure img {
  display: block;
  width: 100%;
  height: clamp(170px, 24vw, 300px);
  object-fit: cover;
}

.page-about .about-region__facts {
  display: grid;
  gap: 22px;
}

.page-about .about-fact {
  padding: 24px 22px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(11, 15, 26, .55);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.page-about .about-fact:hover {
  transform: translateY(-2px);
  border-color: var(--gold);
}

.page-about .about-fact__num {
  display: block;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--gold-light);
}

.page-about .about-fact__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-about .about-fact__text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--about-soft);
}

/* 栏目导读 */
.page-about .about-next {
  background: var(--indigo-2);
  padding-bottom: calc(var(--about-pad) + 34px);
}

.page-about .about-next__list {
  display: grid;
  gap: 18px;
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-next__link {
  display: grid;
  gap: 10px;
  padding: 26px 24px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(11, 15, 26, .55);
  text-decoration: none;
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}

.page-about .about-next__link:hover,
.page-about .about-next__link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--gold);
  background: rgba(20, 31, 61, .78);
}

.page-about .about-next__num {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-about .about-next__name {
  font-size: 22px;
  font-weight: 700;
  color: var(--cream);
}

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

/* 显现动效 */
.page-about [data-reveal] {
  transition: opacity .32s var(--ease), transform .32s var(--ease);
}

.has-js .page-about [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
}

.has-js .page-about [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .has-js .page-about [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-about .about-rings__ring,
  .page-about .about-fact,
  .page-about .about-next__link {
    transition: none;
  }
}

/* 桌面布局 */
@media (min-width: 900px) {
  .page-about {
    --about-pad: 100px;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 72px;
    align-items: start;
  }

  .page-about .about-split__aside {
    padding-top: 44px;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }

  .page-about .about-team__figure img {
    height: 100%;
    min-height: 320px;
  }

  .page-about .about-cap__grid {
    grid-template-columns: minmax(0, 400px) minmax(0, 1fr);
    gap: 76px;
    align-items: center;
  }

  .page-about .about-ecosystem__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-region__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
    align-items: start;
  }

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

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

  .page-about .about-next__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
    align-items: start;
  }

  .page-about .about-next__item:nth-child(2) {
    margin-top: 32px;
  }

  .page-about .about-next__item:nth-child(3) {
    margin-top: 64px;
  }

  .page-about .about-tl__list {
    padding-left: 44px;
  }

  .page-about .about-tl__item::before {
    left: -42px;
  }
}

@media (min-width: 1200px) {
  .page-about .about-tl__figure {
    margin-bottom: 52px;
  }
}

/* 窄屏微调 */
@media (max-width: 640px) {
  .page-about {
    --about-pad: 54px;
  }

  .page-about .about-hero {
    padding-top: calc(var(--head-space) + 8px);
  }

  .page-about .about-hero__slash {
    right: 6%;
    opacity: .34;
  }

  .page-about .about-hero__stats {
    gap: 18px;
  }

  .page-about .about-bar {
    flex-wrap: wrap;
  }

  .page-about .about-bar__name {
    flex: 0 0 100%;
  }

  .page-about .about-bar__track {
    flex: 1 1 60%;
  }

  .page-about .about-standard {
    padding: 22px 18px;
  }

  .page-about .about-next__link {
    padding: 22px 20px 24px;
  }
}