.page-about {
  --about-rail: 180px;
  --about-dot: 11px;
  --about-gap: clamp(20px, 3.4vw, 44px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  background: var(--mdb-purple);
  color: var(--mdb-paper);
  padding: clamp(20px, 3vw, 32px) 0 clamp(48px, 7vw, 92px);
}

.page-about .about-hero__glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(112% 86% at 84% 4%, rgba(184, 255, 60, .18), transparent 56%),
    radial-gradient(94% 82% at 4% 100%, rgba(62, 110, 140, .62), transparent 64%);
  pointer-events: none;
}

.page-about .about-hero__lines {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg,
      rgba(244, 241, 234, .055) 0 1px, transparent 1px 104px);
  pointer-events: none;
}

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

.page-about .about-hero__crumbs {
  margin-bottom: clamp(28px, 5vw, 56px);
}

.page-about .about-hero__crumbs .mdb-crumbs__link {
  color: var(--mdb-qing-soft);
}

.page-about .about-hero__crumbs .mdb-crumbs__link:hover,
.page-about .about-hero__crumbs .mdb-crumbs__link:focus-visible {
  color: var(--mdb-lime);
}

.page-about .about-hero__crumbs .mdb-crumbs__current {
  color: var(--mdb-paper);
}

.page-about .about-hero__eyebrow {
  color: var(--mdb-lime-soft);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  max-width: 15em;
  line-height: 1.04;
  letter-spacing: -.01em;
}

.page-about .about-hero__lead {
  margin-top: clamp(18px, 2.6vw, 28px);
  max-width: 34em;
  color: rgba(244, 241, 234, .82);
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.75;
}

.page-about .about-hero__strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: clamp(34px, 5vw, 60px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--mdb-line-dark);
}

.page-about .about-hero__cell {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-about .about-hero__key {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--mdb-orange);
  border: 1px solid rgba(249, 122, 46, .48);
  padding: 3px 9px;
  border-radius: var(--mdb-radius);
}

.page-about .about-hero__val {
  margin: 0;
  font-size: 15px;
  color: rgba(244, 241, 234, .9);
}

@media (min-width: 780px) {
  .page-about .about-hero__strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-about .about-hero__cell {
    display: block;
    padding-right: 24px;
    border-right: 1px solid var(--mdb-line-dark-soft);
  }

  .page-about .about-hero__cell:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-about .about-hero__val {
    margin-top: 10px;
    display: block;
    max-width: 15em;
  }
}

/* ---------- 起点 ---------- */
.page-about .about-open {
  background: var(--mdb-paper);
}

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

.page-about .about-open__frame {
  aspect-ratio: 4 / 3;
}

.page-about .about-open__body .mdb-index {
  display: block;
  margin-bottom: 10px;
}

.page-about .about-open__prose {
  margin-top: 20px;
}

.page-about .about-open__prose p + p {
  margin-top: 1.15em;
}

.page-about .about-open__note {
  margin-top: 26px;
  padding: 14px 18px;
  border-left: 3px solid var(--mdb-lime);
  background: rgba(62, 110, 140, .07);
  font-size: 15px;
  line-height: 1.7;
  color: var(--mdb-gray);
}

.page-about .about-open__note a {
  color: var(--mdb-qing);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-open__note a:hover,
.page-about .about-open__note a:focus-visible {
  color: var(--mdb-orange);
}

@media (min-width: 900px) {
  .page-about .about-open__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: clamp(36px, 5vw, 80px);
  }
}

/* ---------- 四条业务线 ---------- */
.page-about .about-lines-section {
  background: var(--mdb-surface);
}

.page-about .about-head {
  max-width: 42em;
  margin-bottom: clamp(30px, 4.4vw, 56px);
}

.page-about .about-head .mdb-index {
  display: block;
  margin-bottom: 10px;
}

.page-about .about-head__lead {
  margin-top: 14px;
  color: var(--mdb-gray);
}

.page-about .about-lines {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 1.8vw, 22px);
  align-items: start;
}

.page-about .about-line {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(22px, 2.6vw, 30px);
  border-top: 3px solid var(--mdb-qing);
  overflow: hidden;
}

.page-about .about-line::after {
  content: "";
  position: absolute;
  inset: auto -32% -46% auto;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 255, 60, .3), transparent 68%);
  opacity: 0;
  transition: opacity .3s ease;
  pointer-events: none;
}

.page-about .about-line:hover::after,
.page-about .about-line:focus-within::after {
  opacity: 1;
}

.page-about .about-line__no {
  color: var(--mdb-orange);
}

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

.page-about .about-line .mdb-card__meta {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mdb-qing);
  font-family: var(--mdb-font-mono);
}

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

.page-about .about-line__more {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mdb-gray);
  transition: max-height .34s ease, opacity .26s ease;
}

.page-about .about-line:hover .about-line__more,
.page-about .about-line:focus-within .about-line__more {
  max-height: 240px;
  opacity: 1;
}

@media (hover: none) {
  .page-about .about-line__more {
    max-height: none;
    opacity: 1;
  }
}

@media (min-width: 660px) {
  .page-about .about-lines {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1060px) {
  .page-about .about-lines {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .about-line:nth-child(4) {
    margin-top: 14px;
  }
}

/* ---------- 满宽数据带 ---------- */
.page-about .about-numbers {
  position: relative;
  overflow: hidden;
  background: var(--mdb-purple);
  color: var(--mdb-paper);
  padding: clamp(38px, 5.6vw, 72px) 0;
}

.page-about .about-numbers::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(102deg, rgba(62, 110, 140, .55) 0%, transparent 46%, rgba(184, 255, 60, .1) 100%);
  pointer-events: none;
}

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

.page-about .about-numbers__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 2.6vw, 30px);
}

.page-about .about-numbers__item {
  border-left: 2px solid rgba(184, 255, 60, .5);
  padding-left: 16px;
}

.page-about .about-numbers__value {
  margin: 0;
  font-size: clamp(30px, 4.4vw, 46px);
  font-weight: 600;
  line-height: 1.06;
  color: var(--mdb-lime);
  letter-spacing: -.01em;
}

.page-about .about-numbers__label {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(244, 241, 234, .78);
  max-width: 16em;
}

@media (min-width: 620px) {
  .page-about .about-numbers__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

/* ---------- 日常节奏 ---------- */
.page-about .about-rhythm {
  background: var(--mdb-paper);
}

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

.page-about .about-rhythm__body .mdb-index {
  display: block;
  margin-bottom: 10px;
}

.page-about .about-rhythm__prose {
  margin-top: 20px;
}

.page-about .about-rhythm__prose p + p {
  margin-top: 1.15em;
}

.page-about .about-rhythm__frame {
  aspect-ratio: 3 / 2;
}

@media (min-width: 900px) {
  .page-about .about-rhythm__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 76px);
  }

  .page-about .about-rhythm__figure {
    margin-top: 42px;
  }
}

/* ---------- 版本时间线 ---------- */
.page-about .about-tl-section {
  background: var(--mdb-surface);
}

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

.page-about .about-timeline__row {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding-bottom: clamp(26px, 3.4vw, 40px);
}

.page-about .about-timeline__row + .about-timeline__row {
  padding-top: clamp(20px, 2.6vw, 30px);
  border-top: 1px solid var(--mdb-line-soft);
}

.page-about .about-timeline__rail {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-about .about-timeline__ver {
  margin: 0;
  font-family: var(--mdb-font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--mdb-orange);
}

.page-about .about-timeline__ver--now {
  color: var(--mdb-ink);
  background: var(--mdb-lime);
  padding: 2px 8px;
  border-radius: var(--mdb-radius);
}

.page-about .about-timeline__season {
  margin: 0;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mdb-gray);
}

.page-about .about-timeline__title {
  margin: 0 0 8px;
  max-width: 22em;
}

.page-about .about-timeline__text {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mdb-gray);
}

@media (min-width: 880px) {
  .page-about .about-timeline {
    padding-left: 6px;
  }

  .page-about .about-timeline::before {
    content: "";
    position: absolute;
    left: calc(var(--about-rail) + 2px);
    top: 12px;
    bottom: 24px;
    width: 2px;
    background: linear-gradient(to bottom,
        var(--mdb-lime) 0%,
        var(--mdb-qing-soft) 42%,
        rgba(127, 166, 190, 0) 100%);
    opacity: .55;
  }

  .page-about .about-timeline__row {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
    padding-bottom: clamp(28px, 3.4vw, 44px);
  }

  .page-about .about-timeline__row::before {
    content: "";
    position: absolute;
    left: calc(var(--about-rail) - 4px);
    top: 34px;
    width: var(--about-dot);
    height: var(--about-dot);
    border-radius: 50%;
    background: var(--mdb-lime);
    box-shadow: 0 0 0 4px rgba(184, 255, 60, .2);
  }

  .page-about .about-timeline__row--now::before {
    background: var(--mdb-orange);
    box-shadow: 0 0 0 5px rgba(249, 122, 46, .22);
  }

  .page-about .about-timeline__rail {
    display: block;
    text-align: right;
    padding-right: 6px;
  }

  .page-about .about-timeline__season {
    margin-top: 6px;
  }
}

.page-about .about-tl__more {
  margin: clamp(22px, 3vw, 34px) 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mdb-gray);
}

.page-about .about-tl__more a {
  color: var(--mdb-qing);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-tl__more a:hover,
.page-about .about-tl__more a:focus-visible {
  color: var(--mdb-orange);
}

/* ---------- 合作生态 ---------- */
.page-about .about-partners {
  position: relative;
  background: var(--mdb-purple);
  color: var(--mdb-paper);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-about .about-partners__banner {
  position: relative;
  height: clamp(200px, 32vw, 340px);
  overflow: hidden;
}

.page-about .about-partners__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .about-partners__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom,
      rgba(43, 30, 74, .5) 0%,
      rgba(43, 30, 74, .82) 62%,
      var(--mdb-purple) 100%);
}

.page-about .about-partners__inner {
  position: relative;
  margin-top: clamp(-70px, -6vw, -40px);
}

.page-about .about-partners__head {
  max-width: 40em;
  margin-bottom: clamp(26px, 3.6vw, 44px);
}

.page-about .about-partners__head .mdb-index {
  display: block;
  margin-bottom: 10px;
  color: var(--mdb-orange);
}

.page-about .about-partners__lead {
  margin-top: 14px;
  color: rgba(244, 241, 234, .8);
}

.page-about .about-partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 1.8vw, 20px);
  align-items: start;
}

.page-about .about-partner {
  background: rgba(252, 250, 245, .94);
  backdrop-filter: blur(6px);
  border-top: 3px solid var(--mdb-lime);
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 2.6vw, 30px);
}

.page-about .about-partner__title {
  margin: 0;
  color: var(--mdb-ink);
}

.page-about .about-partner .mdb-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mdb-ink);
}

.page-about .about-partner__foot {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--mdb-line);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mdb-gray);
}

.page-about .about-partners__more {
  margin: clamp(24px, 3vw, 36px) 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(244, 241, 234, .78);
}

.page-about .about-partners__more a {
  color: var(--mdb-lime);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-partners__more a:hover,
.page-about .about-partners__more a:focus-visible {
  color: var(--mdb-lime-soft);
}

@media (min-width: 720px) {
  .page-about .about-partners__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-partner:nth-child(2) {
    margin-top: 22px;
  }
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  background: var(--mdb-section, var(--mdb-paper));
  background: var(--mdb-paper);
  border-top: 1px solid var(--mdb-line);
  padding: clamp(42px, 6vw, 80px) 0;
}

.page-about .about-next__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 48px);
  align-items: end;
}

.page-about .about-next__copy {
  max-width: 40em;
}

.page-about .about-next__copy .mdb-eyebrow {
  margin-bottom: 10px;
}

.page-about .about-next__text {
  margin-top: 16px;
  color: var(--mdb-gray);
}

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

.page-about .about-next__actions .mdb-btn {
  flex: 1 1 auto;
  justify-content: center;
  text-align: center;
}

@media (min-width: 880px) {
  .page-about .about-next__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }

  .page-about .about-next__actions {
    justify-content: flex-end;
  }

  .page-about .about-next__actions .mdb-btn {
    flex: 0 0 auto;
  }
}

/* ---------- 减动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-line::after,
  .page-about .about-line__more {
    transition: none;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</｜｜DSML｜｜ calls>

.page-about {
  --mdb-section: transparent;
}