/* ===================================================================
   品牌中心 · page-about
   =================================================================== */

.page-about {
  --about-hair: rgba(201, 146, 46, .38);
  --about-card: rgba(13, 37, 66, .82);
  --about-card-hi: rgba(13, 37, 66, .99);
  --about-measure: 40em;
}

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

/* ---------------- 首屏 ---------------- */

.page-about .brand-hero {
  position: relative;
  overflow: hidden;
  padding: 112px 0 56px;
  border-bottom: var(--line) solid var(--gold-line);
  background:
    radial-gradient(135% 95% at 6% -12%, rgba(13, 37, 66, .98) 0%, rgba(7, 26, 47, .99) 46%, var(--deep) 100%);
}

.page-about .brand-hero > .shell {
  position: relative;
  z-index: 2;
}

.page-about .brand-hero > .light-cone {
  opacity: .85;
}

.page-about .brand-hero__grid {
  display: grid;
  gap: 34px;
  margin-top: 24px;
}

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

.page-about .brand-hero__title {
  margin: 14px 0 0;
  font-size: clamp(2.2rem, 11vw, 4.6rem);
  line-height: 1.02;
  font-weight: 300;
  letter-spacing: .015em;
  color: var(--warm);
}

.page-about .brand-hero__lede {
  margin: 20px 0 0;
  max-width: var(--about-measure);
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .brand-hero__media {
  margin: 0;
  position: relative;
  box-shadow: var(--shadow-hard);
}

.page-about .brand-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* 数字条 */

.page-about .brand-stats {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--about-hair);
  border: var(--line) solid var(--gold-line);
}

.page-about .brand-stats__item {
  background: var(--about-card);
  padding: 18px 16px 20px;
}

.page-about .brand-stats__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--gold);
}

.page-about .brand-stats__label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
}

/* ---------------- 页内目录 ---------------- */

.page-about .brand-index {
  background: var(--panel);
  border-bottom: var(--line) solid var(--gold-line);
}

.page-about .brand-index__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.page-about .brand-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  font-size: 14px;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}

.page-about .brand-index__no {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-about .brand-index__link:hover,
.page-about .brand-index__link:focus-visible {
  color: var(--warm);
  border-bottom-color: var(--cyan);
}

/* ---------------- 品牌故事 ---------------- */

.page-about .brand-story {
  background: linear-gradient(180deg, var(--deep-space) 0%, var(--deep) 100%);
}

.page-about .brand-story__grid {
  display: grid;
  gap: 26px;
}

.page-about .brand-story__aside {
  border-top: var(--line) solid var(--gold-line);
  padding-top: 14px;
}

.page-about .brand-story__aside .index-label {
  margin: 0;
}

.page-about .brand-story__mark {
  margin: 10px 0 0;
  font-size: 12px;
  letter-spacing: .26em;
  color: rgba(155, 176, 201, .75);
}

.page-about .brand-story__body .prose {
  margin-top: 18px;
}

.page-about .brand-story__note {
  margin: 26px 0 0;
  padding: 16px 18px;
  border-left: 4px solid var(--gold);
  background: rgba(242, 184, 75, .07);
  font-size: 15px;
  line-height: 1.8;
  color: var(--warm);
}

/* ---------------- 发展阶段 ---------------- */

.page-about .brand-milestones {
  background: linear-gradient(180deg, rgba(13, 37, 66, .92) 0%, rgba(7, 26, 47, .97) 100%);
  border-top: var(--line) solid var(--gold-line);
  border-bottom: var(--line) solid var(--gold-line);
}

.page-about .brand-milestones__grid {
  display: grid;
  gap: 36px;
  margin-top: 30px;
}

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

.page-about .brand-timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(53, 214, 232, .48) 55%, rgba(201, 146, 46, .12) 100%);
}

.page-about .brand-timeline__item {
  position: relative;
  padding: 0 0 30px 34px;
}

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

.page-about .brand-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  background: var(--deep);
  border: 2px solid var(--gold);
  transform: rotate(45deg);
}

.page-about .brand-timeline__no {
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-about .brand-timeline__title {
  margin: 8px 0 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--warm);
}

.page-about .brand-timeline__text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .brand-milestones__figure {
  margin: 0;
}

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

/* ---------------- 服务理念 ---------------- */

.page-about .brand-values__grid {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--about-hair);
  border: var(--line) solid var(--gold-line);
}

.page-about .brand-value {
  position: relative;
  background: var(--about-card);
  padding: 24px 20px 26px;
  transition: background .2s ease;
}

.page-about .brand-value:hover,
.page-about .brand-value:focus-within {
  background: var(--about-card-hi);
}

.page-about .brand-value::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 0;
  background: var(--cyan);
  transition: height .22s ease;
}

.page-about .brand-value:hover::after,
.page-about .brand-value:focus-within::after {
  height: 100%;
}

.page-about .brand-value__no {
  display: block;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: rgba(242, 184, 75, .3);
}

.page-about .brand-value__title {
  margin: 12px 0 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--warm);
}

.page-about .brand-value__text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .brand-value__link {
  display: inline-block;
  margin-top: 16px;
  min-height: 44px;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 232, .38);
  transition: border-color .18s ease, color .18s ease;
}

.page-about .brand-value__link:hover,
.page-about .brand-value__link:focus-visible {
  color: var(--warm);
  border-bottom-color: var(--gold);
}

/* ---------------- 团队与协作 ---------------- */

.page-about .brand-team {
  background: linear-gradient(180deg, var(--deep) 0%, var(--deep-space) 100%);
}

.page-about .brand-team__grid {
  display: grid;
  gap: 30px;
}

.page-about .brand-team__body .section-lede {
  margin-top: 14px;
}

.page-about .brand-team__list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--about-hair);
  border: var(--line) solid var(--gold-line);
}

.page-about .brand-team__item {
  background: var(--about-card);
  padding: 18px;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  transition: background .2s ease;
}

.page-about .brand-team__item:hover {
  background: var(--about-card-hi);
}

.page-about .brand-team__no {
  font-size: 13px;
  line-height: 1.75;
  color: var(--gold);
}

.page-about .brand-team__role {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--warm);
}

.page-about .brand-team__desc {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-about .brand-team__figure {
  margin: 0;
  box-shadow: var(--shadow-hard-cyan);
}

.page-about .brand-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

/* ---------------- 资质与生态 ---------------- */

.page-about .brand-cred__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 30px;
}

.page-about .brand-cred__card {
  background: var(--about-card);
  border: var(--line) solid var(--gold-line);
  box-shadow: var(--shadow-hard);
  padding: 24px 20px 26px;
}

.page-about .brand-cred__title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--gold);
}

.page-about .brand-cred__text {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--mist);
}

.page-about .brand-cred__meta {
  margin: 16px 0 0;
  padding: 10px 14px;
  display: inline-block;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
  border: 1px solid rgba(53, 214, 232, .38);
  background: rgba(53, 214, 232, .06);
}

.page-about .brand-cred__contacts {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .brand-cred__contact {
  display: grid;
  gap: 6px;
  padding-top: 14px;
  border-top: 1px solid rgba(201, 146, 46, .28);
}

.page-about .brand-cred__contact:first-child {
  border-top: none;
  padding-top: 0;
}

.page-about .brand-cred__label {
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-about .brand-cred__value {
  font-size: 15px;
  line-height: 1.7;
  color: var(--warm);
  word-break: break-word;
}

/* ---------------- 收尾 ---------------- */

.page-about .brand-next {
  background: var(--deep);
  border-top: var(--line) solid var(--gold-line);
}

.page-about .brand-next__inner {
  position: relative;
  overflow: hidden;
  padding: 36px 22px 40px;
  border: var(--line) solid var(--gold-line);
  background:
    radial-gradient(110% 130% at 88% 0%, rgba(53, 214, 232, .16) 0%, rgba(7, 26, 47, .98) 58%),
    var(--deep-space);
}

.page-about .brand-next__body {
  position: relative;
  z-index: 2;
}

.page-about .brand-next__body .index-label {
  margin: 0;
}

.page-about .brand-next__body .section-title {
  margin-top: 12px;
}

.page-about .brand-next__text {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-about .brand-next__links .btn {
  min-height: 44px;
}

/* ---------------- 响应式 ---------------- */

@media (min-width: 640px) {
  .page-about .brand-values__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .brand-cred__contacts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 24px;
  }
}

@media (min-width: 780px) {
  .page-about .brand-hero {
    padding: 132px 0 70px;
  }

  .page-about .brand-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .brand-cred__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .brand-cred__card--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 960px) {
  .page-about .brand-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: 48px;
    align-items: start;
    margin-top: 32px;
  }

  .page-about .brand-story__grid {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 56px;
  }

  .page-about .brand-milestones__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
    gap: 52px;
    align-items: start;
  }

  .page-about .brand-milestones__figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

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

  .page-about .brand-team__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: 46px;
    align-items: start;
  }

  .page-about .brand-next__inner {
    padding: 52px 48px 56px;
  }
}
</PAGE_CSS>>>