.page-about {
  background: var(--yta-paper);
  color: var(--yta-ink);
  font-family: var(--yta-font-body);
  overflow-x: hidden;
}

.page-about a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: calc(var(--yta-header-h) + 44px) 0 56px;
  background:
    radial-gradient(120% 90% at 82% 0%, rgba(0, 166, 178, 0.14), transparent 62%),
    linear-gradient(180deg, #eef6fc 0%, var(--yta-paper) 78%);
  border-bottom: 1px solid var(--yta-line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(215, 228, 239, 0.85) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(215, 228, 239, 0.85) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: linear-gradient(160deg, rgba(0, 0, 0, 0.55), transparent 70%);
  pointer-events: none;
}

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

.page-about .about-hero__crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  font-family: var(--yta-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--yta-graphite);
}

.page-about .about-hero__crumb li + li::before {
  content: "/";
  margin: 0 8px;
  color: var(--yta-line-soft);
}

.page-about .about-hero__crumb a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-about .about-hero__crumb a:hover {
  border-bottom-color: var(--yta-cyan);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-hero__title {
  margin: 12px 0 0;
  font-family: var(--yta-font-head);
  font-size: clamp(30px, 6vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-blue-deep);
  max-width: 15em;
}

.page-about .about-hero__lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--yta-graphite);
}

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

.page-about .about-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin: 34px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--yta-line);
}

.page-about .about-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  color: var(--yta-graphite);
}

.page-about .about-hero__num {
  font-family: var(--yta-font-head);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--yta-blue-bright);
}

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

.page-about .about-hero__media {
  border: 1px solid var(--yta-line);
  background: var(--yta-mist);
  box-shadow: 10px 10px 0 -1px rgba(30, 111, 217, 0.08);
}

.page-about .about-hero__figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--yta-graphite);
  border-left: 2px solid var(--yta-cyan);
  padding-left: 10px;
}

/* ---------- 品牌起源 ---------- */
.page-about .about-origin {
  padding-top: 72px;
  padding-bottom: 72px;
}

.page-about .about-origin__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-origin__title {
  margin: 10px 0 0;
  font-family: var(--yta-font-head);
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-ink);
}

.page-about .about-origin__body {
  border-left: 1px solid var(--yta-line);
  padding-left: 0;
}

.page-about .about-origin__body p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--yta-graphite);
  max-width: 36em;
}

.page-about .about-origin__body strong {
  color: var(--yta-blue-deep);
  font-weight: 700;
}

.page-about .about-origin__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  background: linear-gradient(180deg, #ffffff 0%, #f2f8fd 100%);
  border-top: 1px solid var(--yta-line);
  border-bottom: 1px solid var(--yta-line);
  padding-top: 72px;
  padding-bottom: 72px;
}

.page-about .about-timeline__head {
  max-width: 44em;
  margin-bottom: 44px;
}

.page-about .about-timeline__head h2 {
  margin: 10px 0 14px;
  font-family: var(--yta-font-head);
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-blue-deep);
}

.page-about .about-timeline__sub {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--yta-graphite);
}

.page-about .about-timeline__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.page-about .about-timeline__jump a {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--yta-line);
  border-radius: 999px;
  background: var(--yta-white);
  font-size: 13px;
  text-decoration: none;
  color: var(--yta-blue-deep);
  transition: border-color var(--yta-dur) var(--yta-ease), background var(--yta-dur) var(--yta-ease);
}

.page-about .about-timeline__jump a:hover,
.page-about .about-timeline__jump a:focus-visible {
  border-color: var(--yta-cyan);
  background: #ecfaf9;
}

.page-about .about-rail {
  position: relative;
  margin: 0;
  padding: 0 0 0 26px;
  list-style: none;
}

.page-about .about-rail::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--yta-cyan), var(--yta-blue-bright) 55%, var(--yta-line));
}

.page-about .about-rail__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 0 0 34px;
}

.page-about .about-rail__dot {
  position: absolute;
  left: -26px;
  top: 6px;
  width: 15px;
  height: 15px;
  border: 1px solid var(--yta-blue-bright);
  background: var(--yta-white);
  border-radius: 50%;
  box-shadow: inset 0 0 0 3px var(--yta-white), inset 0 0 0 5px var(--yta-cyan);
}

.page-about .about-rail__year {
  font-family: var(--yta-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--yta-cyan);
  font-weight: 600;
}

.page-about .about-rail__card {
  padding: 18px 20px;
  background: var(--yta-white);
  border: 1px solid var(--yta-line);
  border-left: 2px solid var(--yta-blue-bright);
}

.page-about .about-rail__card--warm {
  border-left-color: var(--yta-warm);
  background: linear-gradient(180deg, #fff8f3 0%, var(--yta-white) 70%);
}

.page-about .about-rail__card h3 {
  margin: 0 0 8px;
  font-family: var(--yta-font-head);
  font-size: 19px;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--yta-ink);
}

.page-about .about-rail__card p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yta-graphite);
}

.page-about .about-timeline__figure {
  margin: 12px 0 0;
}

.page-about .about-timeline__figure .yta-media {
  border: 1px solid var(--yta-line);
  background: var(--yta-mist);
}

.page-about .about-timeline__figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--yta-graphite);
}

/* ---------- 服务地图 ---------- */
.page-about .about-map {
  padding-top: 72px;
  padding-bottom: 72px;
}

.page-about .about-map__head {
  max-width: 42em;
  margin-bottom: 36px;
}

.page-about .about-map__head h2 {
  margin: 10px 0 14px;
  font-family: var(--yta-font-head);
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-ink);
}

.page-about .about-map__head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--yta-graphite);
}

.page-about .about-map__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .about-map__card {
  position: relative;
  padding: 26px 22px 22px;
  background: var(--yta-white);
  border: 1px solid var(--yta-line);
  border-top: 3px solid var(--yta-blue-bright);
}

.page-about .about-map__card::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 18px;
  width: 26px;
  height: 26px;
  border-top: 1px solid var(--yta-line);
  border-right: 1px solid var(--yta-line);
}

.page-about .about-map__card--family {
  border-top-color: var(--yta-cyan);
  background: linear-gradient(180deg, #f2fbfa 0%, var(--yta-white) 60%);
}

.page-about .about-map__card--biz {
  border-top-color: var(--yta-warm);
  background: linear-gradient(180deg, #fff7f2 0%, var(--yta-white) 60%);
}

.page-about .about-map__card h3 {
  margin: 0 0 10px;
  font-family: var(--yta-font-head);
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--yta-blue-deep);
}

.page-about .about-map__card p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yta-graphite);
}

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

.page-about .about-map__card li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--yta-graphite);
}

.page-about .about-map__card li + li {
  margin-top: 6px;
}

.page-about .about-map__card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--yta-cyan);
}

.page-about .about-map__card--biz li::before {
  background: var(--yta-warm);
}

.page-about .about-map__link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: var(--yta-blue-bright);
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-about .about-map__link--warm {
  color: #c2531c;
}

.page-about .about-map__link:hover {
  color: var(--yta-blue-deep);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  background: var(--yta-ink);
  color: #e7f0f8;
  padding-top: 66px;
  padding-bottom: 70px;
  position: relative;
  overflow: hidden;
}

.page-about .about-team::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(120, 180, 235, 0.12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120, 180, 235, 0.12) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-about .about-team .yta-container {
  position: relative;
}

.page-about .about-team__eyebrow {
  color: var(--yta-cyan);
}

.page-about .about-team__band h2 {
  margin: 10px 0 34px;
  font-family: var(--yta-font-head);
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: #ffffff;
}

.page-about .about-team__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding-bottom: 38px;
  border-bottom: 1px solid rgba(120, 180, 235, 0.24);
}

.page-about .about-team__stat {
  padding: 18px 18px 16px;
  border: 1px solid rgba(120, 180, 235, 0.24);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color var(--yta-dur) var(--yta-ease), background var(--yta-dur) var(--yta-ease);
}

.page-about .about-team__stat:hover {
  border-color: var(--yta-cyan);
  background: rgba(0, 166, 178, 0.09);
}

.page-about .about-team__num {
  display: block;
  font-family: var(--yta-font-head);
  font-size: 40px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #ffffff;
}

.page-about .about-team__label {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--yta-cyan);
}

.page-about .about-team__desc {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: #a9bfd2;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--yta-dur) var(--yta-ease), opacity var(--yta-dur) var(--yta-ease), margin var(--yta-dur) var(--yta-ease);
}

.page-about .about-team__stat:hover .about-team__desc,
.page-about .about-team__stat:focus-within .about-team__desc {
  max-height: 6em;
  opacity: 1;
}

.page-about .about-team__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 38px;
  align-items: start;
}

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

.page-about .about-team__figure .yta-media {
  border: 1px solid rgba(120, 180, 235, 0.28);
  background: rgba(255, 255, 255, 0.05);
}

.page-about .about-team__figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: #a9bfd2;
}

.page-about .about-team__notes h3 {
  margin: 0 0 12px;
  font-family: var(--yta-font-head);
  font-size: 21px;
  font-weight: 700;
  color: #ffffff;
}

.page-about .about-team__notes p {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: #c5d6e4;
  max-width: 34em;
}

.page-about .about-team__notes .yta-btn--ghost {
  border-color: rgba(205, 237, 234, 0.5);
  color: #eaf7f6;
}

.page-about .about-team__notes .yta-btn--ghost:hover {
  background: rgba(205, 237, 234, 0.14);
  border-color: var(--yta-mist);
}

/* ---------- 信任机制 ---------- */
.page-about .about-trust {
  padding-top: 72px;
  padding-bottom: 72px;
}

.page-about .about-trust__head {
  max-width: 40em;
  margin-bottom: 34px;
}

.page-about .about-trust__head h2 {
  margin: 10px 0 14px;
  font-family: var(--yta-font-head);
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-blue-deep);
}

.page-about .about-trust__head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--yta-graphite);
}

.page-about .about-trust__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--yta-line);
}

.page-about .about-trust__item {
  padding: 24px 0;
  border-bottom: 1px solid var(--yta-line);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
  align-items: baseline;
}

.page-about .about-trust__idx {
  grid-row: span 2;
  font-family: var(--yta-font-mono);
  font-size: 13px;
  color: var(--yta-cyan);
  letter-spacing: 0.06em;
}

.page-about .about-trust__item h3 {
  margin: 0;
  font-family: var(--yta-font-head);
  font-size: 19px;
  font-weight: 700;
  color: var(--yta-ink);
}

.page-about .about-trust__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yta-graphite);
  max-width: 40em;
}

.page-about .about-trust__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 26px;
}

.page-about .about-trust__doc {
  font-size: 14px;
  font-weight: 600;
  color: var(--yta-blue-bright);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-about .about-trust__doc:hover {
  color: var(--yta-blue-deep);
}

/* ---------- 生态 ---------- */
.page-about .about-eco {
  padding-bottom: 84px;
}

.page-about .about-eco__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  border-top: 1px solid var(--yta-line);
  padding-top: 56px;
}

.page-about .about-eco__copy h2 {
  margin: 10px 0 16px;
  font-family: var(--yta-font-head);
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-ink);
  position: relative;
}

.page-about .about-eco__copy h2::after {
  content: "";
  display: block;
  width: 64px;
  height: 2px;
  margin-top: 16px;
  background: linear-gradient(90deg, var(--yta-cyan), var(--yta-blue-bright));
}

.page-about .about-eco__copy p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--yta-graphite);
  max-width: 34em;
}

.page-about .about-eco__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-about .about-eco__aside {
  padding: 24px 22px;
  background: var(--yta-white);
  border: 1px solid var(--yta-line);
  border-left: 2px solid var(--yta-cyan);
}

.page-about .about-eco__aside-title {
  margin: 0 0 16px;
  font-family: var(--yta-font-head);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--yta-blue-deep);
}

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

.page-about .about-eco__links li {
  padding: 12px 0;
  border-top: 1px solid var(--yta-line);
}

.page-about .about-eco__links li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-eco__links a {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  color: var(--yta-blue-bright);
}

.page-about .about-eco__links a:hover {
  color: var(--yta-blue-deep);
  text-decoration: underline;
}

.page-about .about-eco__links span {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yta-graphite);
}

/* ---------- 显现动效 ---------- */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.36s var(--yta-ease), transform 0.36s var(--yta-ease);
}

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

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal],
  .page-about [data-reveal].is-visible {
    transform: none;
    transition: opacity 0.2s linear;
  }
  .page-about .about-team__desc {
    transition: none;
  }
}

/* ---------- 断点：≥640px ---------- */
@media (min-width: 640px) {
  .page-about .about-team__stats {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .about-trust__item {
    grid-template-columns: 48px 1fr;
    gap: 6px 20px;
    padding: 26px 0;
  }
  .page-about .about-map__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 断点：≥900px ---------- */
@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: calc(var(--yta-header-h) + 64px);
    padding-bottom: 76px;
  }
  .page-about .about-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: center;
  }
  .page-about .about-hero__figure {
    position: relative;
  }
  .page-about .about-hero__figure::before {
    content: "";
    position: absolute;
    right: -22px;
    top: -22px;
    width: 120px;
    height: 120px;
    border-top: 1px solid var(--yta-cyan);
    border-right: 1px solid var(--yta-cyan);
    pointer-events: none;
  }

  .page-about .about-origin__inner {
    grid-template-columns: 0.82fr 1.18fr;
    gap: 56px;
    align-items: start;
  }
  .page-about .about-origin__body {
    border-left: 1px solid var(--yta-line);
    padding-left: 34px;
  }

  .page-about .about-rail {
    padding-left: 132px;
  }
  .page-about .about-rail::before {
    left: 112px;
  }
  .page-about .about-rail__item {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .page-about .about-rail__dot {
    left: -27px;
    top: 8px;
  }
  .page-about .about-rail__year {
    position: absolute;
    left: -132px;
    top: 6px;
    width: 96px;
    text-align: right;
    font-size: 13px;
  }
  .page-about .about-rail__card {
    padding: 22px 26px;
  }
  .page-about .about-rail__item + .about-rail__item .about-rail__card::before {
    content: "";
    position: absolute;
    left: -134px;
    top: 14px;
    width: 96px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--yta-line-soft));
    transform: rotate(-4deg);
    transform-origin: right center;
  }
  .page-about .about-rail__card {
    position: relative;
  }

  .page-about .about-map__grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 22px;
  }

  .page-about .about-team__split {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-eco__inner {
    grid-template-columns: 1.45fr 0.75fr;
    gap: 56px;
    align-items: start;
  }
}

/* ---------- 断点：≥1100px ---------- */
@media (min-width: 1100px) {
  .page-about .about-hero__title {
    font-size: 50px;
  }
  .page-about .about-rail__card h3 {
    font-size: 21px;
  }
  .page-about .about-map__card {
    padding: 30px 26px 26px;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</final>

.page-about {
  background: var(--yta-paper);
  color: var(--yta-ink);
  font-family: var(--yta-font-body);
  overflow-x: hidden;
}

.page-about a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: calc(var(--yta-header-h) + 44px) 0 56px;
  background:
    radial-gradient(120% 90% at 82% 0%, rgba(0, 166, 178, 0.14), transparent 62%),
    linear-gradient(180deg, #eef6fc 0%, var(--yta-paper) 78%);
  border-bottom: 1px solid var(--yta-line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(215, 228, 239, 0.85) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(215, 228, 239, 0.85) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: linear-gradient(160deg, rgba(0, 0, 0, 0.55), transparent 70%);
  pointer-events: none;
}

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

.page-about .about-hero__crumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
  font-family: var(--yta-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--yta-graphite);
}

.page-about .about-hero__crumb li + li::before {
  content: "/";
  margin: 0 8px;
  color: var(--yta-line-soft);
}

.page-about .about-hero__crumb a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-about .about-hero__crumb a:hover {
  border-bottom-color: var(--yta-cyan);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-hero__title {
  margin: 12px 0 0;
  font-family: var(--yta-font-head);
  font-size: clamp(30px, 6vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-blue-deep);
  max-width: 15em;
}

.page-about .about-hero__lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--yta-graphite);
}

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

.page-about .about-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin: 34px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--yta-line);
}

.page-about .about-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 13px;
  color: var(--yta-graphite);
}

.page-about .about-hero__num {
  font-family: var(--yta-font-head);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--yta-blue-bright);
}

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

.page-about .about-hero__media {
  border: 1px solid var(--yta-line);
  background: var(--yta-mist);
  box-shadow: 10px 10px 0 -1px rgba(30, 111, 217, 0.08);
}

.page-about .about-hero__figure figcaption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--yta-graphite);
  border-left: 2px solid var(--yta-cyan);
  padding-left: 10px;
}

/* ---------- 品牌起源 ---------- */
.page-about .about-origin {
  padding-top: 72px;
  padding-bottom: 72px;
}

.page-about .about-origin__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-origin__title {
  margin: 10px 0 0;
  font-family: var(--yta-font-head);
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-ink);
}

.page-about .about-origin__body {
  border-left: 1px solid var(--yta-line);
  padding-left: 0;
}

.page-about .about-origin__body p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--yta-graphite);
  max-width: 36em;
}

.page-about .about-origin__body strong {
  color: var(--yta-blue-deep);
  font-weight: 700;
}

.page-about .about-origin__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  background: linear-gradient(180deg, #ffffff 0%, #f2f8fd 100%);
  border-top: 1px solid var(--yta-line);
  border-bottom: 1px solid var(--yta-line);
  padding-top: 72px;
  padding-bottom: 72px;
}

.page-about .about-timeline__head {
  max-width: 44em;
  margin-bottom: 44px;
}

.page-about .about-timeline__head h2 {
  margin: 10px 0 14px;
  font-family: var(--yta-font-head);
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-blue-deep);
}

.page-about .about-timeline__sub {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--yta-graphite);
}

.page-about .about-timeline__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.page-about .about-timeline__jump a {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--yta-line);
  border-radius: 999px;
  background: var(--yta-white);
  font-size: 13px;
  text-decoration: none;
  color: var(--yta-blue-deep);
  transition: border-color var(--yta-dur) var(--yta-ease), background var(--yta-dur) var(--yta-ease);
}

.page-about .about-timeline__jump a:hover,
.page-about .about-timeline__jump a:focus-visible {
  border-color: var(--yta-cyan);
  background: #ecfaf9;
}

.page-about .about-rail {
  position: relative;
  margin: 0;
  padding: 0 0 0 26px;
  list-style: none;
}

.page-about .about-rail::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--yta-cyan), var(--yta-blue-bright) 55%, var(--yta-line));
}

.page-about .about-rail__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 0 0 34px;
}

.page-about .about-rail__dot {
  position: absolute;
  left: -26px;
  top: 6px;
  width: 15px;
  height: 15px;
  border: 1px solid var(--yta-blue-bright);
  background: var(--yta-white);
  border-radius: 50%;
  box-shadow: inset 0 0 0 3px var(--yta-white), inset 0 0 0 5px var(--yta-cyan);
}

.page-about .about-rail__year {
  font-family: var(--yta-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--yta-cyan);
  font-weight: 600;
}

.page-about .about-rail__card {
  padding: 18px 20px;
  background: var(--yta-white);
  border: 1px solid var(--yta-line);
  border-left: 2px solid var(--yta-blue-bright);
}

.page-about .about-rail__card--warm {
  border-left-color: var(--yta-warm);
  background: linear-gradient(180deg, #fff8f3 0%, var(--yta-white) 70%);
}

.page-about .about-rail__card h3 {
  margin: 0 0 8px;
  font-family: var(--yta-font-head);
  font-size: 19px;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--yta-ink);
}

.page-about .about-rail__card p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yta-graphite);
}

.page-about .about-timeline__figure {
  margin: 12px 0 0;
}

.page-about .about-timeline__figure .yta-media {
  border: 1px solid var(--yta-line);
  background: var(--yta-mist);
}

.page-about .about-timeline__figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--yta-graphite);
}

/* ---------- 服务地图 ---------- */
.page-about .about-map {
  padding-top: 72px;
  padding-bottom: 72px;
}

.page-about .about-map__head {
  max-width: 42em;
  margin-bottom: 36px;
}

.page-about .about-map__head h2 {
  margin: 10px 0 14px;
  font-family: var(--yta-font-head);
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-ink);
}

.page-about .about-map__head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--yta-graphite);
}

.page-about .about-map__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .about-map__card {
  position: relative;
  padding: 26px 22px 22px;
  background: var(--yta-white);
  border: 1px solid var(--yta-line);
  border-top: 3px solid var(--yta-blue-bright);
}

.page-about .about-map__card::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 18px;
  width: 26px;
  height: 26px;
  border-top: 1px solid var(--yta-line);
  border-right: 1px solid var(--yta-line);
}

.page-about .about-map__card--family {
  border-top-color: var(--yta-cyan);
  background: linear-gradient(180deg, #f2fbfa 0%, var(--yta-white) 60%);
}

.page-about .about-map__card--biz {
  border-top-color: var(--yta-warm);
  background: linear-gradient(180deg, #fff7f2 0%, var(--yta-white) 60%);
}

.page-about .about-map__card h3 {
  margin: 0 0 10px;
  font-family: var(--yta-font-head);
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--yta-blue-deep);
}

.page-about .about-map__card p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yta-graphite);
}

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

.page-about .about-map__card li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--yta-graphite);
}

.page-about .about-map__card li + li {
  margin-top: 6px;
}

.page-about .about-map__card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--yta-cyan);
}

.page-about .about-map__card--biz li::before {
  background: var(--yta-warm);
}

.page-about .about-map__link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: var(--yta-blue-bright);
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-about .about-map__link--warm {
  color: #c2531c;
}

.page-about .about-map__link:hover {
  color: var(--yta-blue-deep);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  background: var(--yta-ink);
  color: #e7f0f8;
  padding-top: 66px;
  padding-bottom: 70px;
  position: relative;
  overflow: hidden;
}

.page-about .about-team::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(120, 180, 235, 0.12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(120, 180, 235, 0.12) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-about .about-team .yta-container {
  position: relative;
}

.page-about .about-team .about-team__eyebrow {
  color: var(--yta-cyan);
}

.page-about .about-team__band h2 {
  margin: 10px 0 34px;
  font-family: var(--yta-font-head);
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: #ffffff;
}

.page-about .about-team__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding-bottom: 38px;
  border-bottom: 1px solid rgba(120, 180, 235, 0.24);
}

.page-about .about-team__stat {
  padding: 18px 18px 16px;
  border: 1px solid rgba(120, 180, 235, 0.24);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color var(--yta-dur) var(--yta-ease), background var(--yta-dur) var(--yta-ease);
}

.page-about .about-team__stat:hover {
  border-color: var(--yta-cyan);
  background: rgba(0, 166, 178, 0.09);
}

.page-about .about-team__num {
  display: block;
  font-family: var(--yta-font-head);
  font-size: 40px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #ffffff;
}

.page-about .about-team__label {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--yta-cyan);
}

.page-about .about-team__desc {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: #a9bfd2;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--yta-dur) var(--yta-ease), opacity var(--yta-dur) var(--yta-ease), margin var(--yta-dur) var(--yta-ease);
}

.page-about .about-team__stat:hover .about-team__desc,
.page-about .about-team__stat:focus-within .about-team__desc {
  max-height: 6em;
  opacity: 1;
}

.page-about .about-team__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 38px;
  align-items: start;
}

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

.page-about .about-team__figure .yta-media {
  border: 1px solid rgba(120, 180, 235, 0.28);
  background: rgba(255, 255, 255, 0.05);
}

.page-about .about-team__figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: #a9bfd2;
}

.page-about .about-team__notes h3 {
  margin: 0 0 12px;
  font-family: var(--yta-font-head);
  font-size: 21px;
  font-weight: 700;
  color: #ffffff;
}

.page-about .about-team__notes p {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: #c5d6e4;
  max-width: 34em;
}

.page-about .about-team__notes .yta-btn--ghost {
  border-color: rgba(205, 237, 234, 0.5);
  color: #eaf7f6;
}

.page-about .about-team__notes .yta-btn--ghost:hover {
  background: rgba(205, 237, 234, 0.14);
  border-color: var(--yta-mist);
}

/* ---------- 信任机制 ---------- */
.page-about .about-trust {
  padding-top: 72px;
  padding-bottom: 72px;
}

.page-about .about-trust__head {
  max-width: 40em;
  margin-bottom: 34px;
}

.page-about .about-trust__head h2 {
  margin: 10px 0 14px;
  font-family: var(--yta-font-head);
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-blue-deep);
}

.page-about .about-trust__head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--yta-graphite);
}

.page-about .about-trust__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--yta-line);
}

.page-about .about-trust__item {
  padding: 24px 0;
  border-bottom: 1px solid var(--yta-line);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 16px;
  align-items: baseline;
}

.page-about .about-trust__idx {
  grid-row: span 2;
  font-family: var(--yta-font-mono);
  font-size: 13px;
  color: var(--yta-cyan);
  letter-spacing: 0.06em;
}

.page-about .about-trust__item h3 {
  margin: 0;
  font-family: var(--yta-font-head);
  font-size: 19px;
  font-weight: 700;
  color: var(--yta-ink);
}

.page-about .about-trust__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yta-graphite);
  max-width: 40em;
}

.page-about .about-trust__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 26px;
}

.page-about .about-trust__doc {
  font-size: 14px;
  font-weight: 600;
  color: var(--yta-blue-bright);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

.page-about .about-trust__doc:hover {
  color: var(--yta-blue-deep);
}

/* ---------- 生态 ---------- */
.page-about .about-eco {
  padding-bottom: 84px;
}

.page-about .about-eco__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  border-top: 1px solid var(--yta-line);
  padding-top: 56px;
}

.page-about .about-eco__copy h2 {
  margin: 10px 0 16px;
  font-family: var(--yta-font-head);
  font-size: clamp(24px, 4.2vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--yta-ink);
  position: relative;
}

.page-about .about-eco__copy h2::after {
  content: "";
  display: block;
  width: 64px;
  height: 2px;
  margin-top: 16px;
  background: linear-gradient(90deg, var(--yta-cyan), var(--yta-blue-bright));
}

.page-about .about-eco__copy p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--yta-graphite);
  max-width: 34em;
}

.page-about .about-eco__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-about .about-eco__aside {
  padding: 24px 22px;
  background: var(--yta-white);
  border: 1px solid var(--yta-line);
  border-left: 2px solid var(--yta-cyan);
}

.page-about .about-eco__aside-title {
  margin: 0 0 16px;
  font-family: var(--yta-font-head);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--yta-blue-deep);
}

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

.page-about .about-eco__links li {
  padding: 12px 0;
  border-top: 1px solid var(--yta-line);
}

.page-about .about-eco__links li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-eco__links a {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  color: var(--yta-blue-bright);
}

.page-about .about-eco__links a:hover {
  color: var(--yta-blue-deep);
  text-decoration: underline;
}

.page-about .about-eco__links span {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--yta-graphite);
}

/* ---------- 显现动效 ---------- */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.36s var(--yta-ease), transform 0.36s var(--yta-ease);
}

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

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal],
  .page-about [data-reveal].is-visible {
    transform: none;
    transition: opacity 0.2s linear;
  }
  .page-about .about-team__desc {
    transition: none;
  }
}

/* ---------- 断点：≥640px ---------- */
@media (min-width: 640px) {
  .page-about .about-team__stats {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .about-trust__item {
    grid-template-columns: 48px 1fr;
    gap: 6px 20px;
    padding: 26px 0;
  }
  .page-about .about-map__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 断点：≥900px ---------- */
@media (min-width: 900px) {
  .page-about .about-hero {
    padding-top: calc(var(--yta-header-h) + 64px);
    padding-bottom: 76px;
  }
  .page-about .about-hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: center;
  }
  .page-about .about-hero__figure {
    position: relative;
  }
  .page-about .about-hero__figure::before {
    content: "";
    position: absolute;
    right: -22px;
    top: -22px;
    width: 120px;
    height: 120px;
    border-top: 1px solid var(--yta-cyan);
    border-right: 1px solid var(--yta-cyan);
    pointer-events: none;
  }

  .page-about .about-origin__inner {
    grid-template-columns: 0.82fr 1.18fr;
    gap: 56px;
    align-items: start;
  }
  .page-about .about-origin__body {
    border-left: 1px solid var(--yta-line);
    padding-left: 34px;
  }

  .page-about .about-rail {
    padding-left: 132px;
  }
  .page-about .about-rail::before {
    left: 112px;
  }
  .page-about .about-rail__item {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .page-about .about-rail__dot {
    left: -27px;
    top: 8px;
  }
  .page-about .about-rail__year {
    position: absolute;
    left: -132px;
    top: 6px;
    width: 96px;
    text-align: right;
    font-size: 13px;
  }
  .page-about .about-rail__card {
    padding: 22px 26px;
  }
  .page-about .about-rail__item + .about-rail__item .about-rail__card::before {
    content: "";
    position: absolute;
    left: -134px;
    top: 14px;
    width: 96px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--yta-line-soft));
    transform: rotate(-4deg);
    transform-origin: right center;
  }
  .page-about .about-rail__card {
    position: relative;
  }

  .page-about .about-map__grid {
    grid-template-columns: 1fr 1fr 1fr;
    gap: 22px;
  }

  .page-about .about-team__split {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
    align-items: center;
  }

  .page-about .about-eco__inner {
    grid-template-columns: 1.45fr 0.75fr;
    gap: 56px;
    align-items: start;
  }
}

/* ---------- 断点：≥1100px ---------- */
@media (min-width: 1100px) {
  .page-about .about-hero__title {
    font-size: 50px;
  }
  .page-about .about-rail__card h3 {
    font-size: 21px;
  }
  .page-about .about-map__card {
    padding: 30px 26px 26px;
  }
}
<<<END>>>