.page-about {
  --about-tint: rgba(13, 20, 36, .78);
  --about-radius-organic: 96px 16px 96px 16px;
  display: block;
}

.page-about .about-crumb {
  padding-top: 20px;
  padding-bottom: 6px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 20px 0 40px;
}

.page-about .about-blob {
  position: absolute;
  right: -30%;
  bottom: -10%;
  width: 460px;
  height: 460px;
  border-radius: 46% 54% 38% 62% / 56% 44% 56% 44%;
  background: radial-gradient(circle at 32% 30%, rgba(57, 242, 200, .18), rgba(30, 76, 138, .22) 55%, transparent 74%);
  filter: blur(8px);
  pointer-events: none;
}

.page-about .about-hero-grid {
  position: relative;
  display: grid;
  gap: 30px;
}

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

.page-about .about-lede {
  max-width: 48ch;
  margin: 16px 0 0;
  font-size: 17px;
  line-height: 1.8;
  color: rgba(244, 248, 255, .82);
}

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

.page-about .about-vert-note {
  margin: 26px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-mint);
}

.page-about .about-hero-side {
  display: grid;
  gap: 14px;
}

.page-about .about-hero-figure {
  margin: 0;
  overflow: hidden;
  border: var(--line-soft);
  border-radius: var(--about-radius-organic);
  background: var(--c-bg-2);
}

.page-about .about-hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-hero-card {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 0;
  padding: 16px;
  border: var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(13, 20, 36, .96), rgba(7, 10, 18, .9));
}

.page-about .about-card-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-mint);
}

.page-about .about-card-label {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-steel);
}

/* ---------- 数据带 ---------- */
.page-about .about-band {
  margin-top: 4px;
}

.page-about .about-stats {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin: 0;
  padding: 26px 0;
}

.page-about .about-stat {
  padding-left: 14px;
  border-left: 2px solid rgba(57, 242, 200, .38);
  transition: border-color .16s var(--ease), transform .16s var(--ease);
}

.page-about .about-stat:hover,
.page-about .about-stat:focus-within {
  border-left-color: var(--c-mint);
  transform: translateY(-2px);
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.05;
  color: var(--c-white);
}

.page-about .about-stat-label {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  color: var(--c-steel);
}

/* ---------- 章节头共用 ---------- */
.page-about .about-head-split {
  display: grid;
  gap: 10px;
}

.page-about .about-head-split .section-lede {
  max-width: 46ch;
}

/* ---------- 发展历程 ---------- */
.page-about .about-timeline {
  list-style: none;
  display: grid;
  gap: 14px;
  margin: 26px 0 0;
  padding: 0;
}

.page-about .about-tl-item {
  position: relative;
  padding: 16px 16px 18px;
  border: var(--line-soft);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(13, 20, 36, .9), rgba(7, 10, 18, .72));
  transition: border-color .16s var(--ease), background .16s var(--ease);
}

.page-about .about-tl-item:hover {
  border-color: rgba(57, 242, 200, .55);
  background: linear-gradient(180deg, rgba(11, 59, 64, .5), rgba(7, 10, 18, .82));
}

.page-about .about-tl-year {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--c-mint);
}

.page-about .about-tl-title {
  margin: 6px 0 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-white);
}

.page-about .about-tl-text {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-steel);
}

/* ---------- 团队 ---------- */
.page-about .about-team-grid {
  display: grid;
  gap: 22px;
  margin-top: 24px;
}

.page-about .about-team-figure {
  margin: 0;
  overflow: hidden;
  border: var(--line-soft);
  border-radius: 16px 96px 16px 96px;
  background: var(--c-bg-2);
}

.page-about .about-team-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-team-note {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(244, 248, 255, .82);
}

.page-about .about-people {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
}

.page-about .about-person {
  padding: 12px 14px;
  border: var(--line-soft);
  border-radius: 10px;
  background: rgba(13, 20, 36, .72);
  transition: border-color .16s var(--ease);
}

.page-about .about-person:hover {
  border-color: rgba(139, 123, 255, .7);
}

.page-about .about-person-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-white);
}

.page-about .about-person-label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-steel);
}

/* ---------- 会员权益工具 ---------- */
.page-about .about-tools {
  background: linear-gradient(180deg, rgba(11, 59, 64, .28), transparent 62%);
}

.page-about .about-tools-figure {
  margin: 24px 0 0;
  overflow: hidden;
  border: var(--line-soft);
  border-radius: var(--radius);
  background: var(--c-bg-2);
}

.page-about .about-tools-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-tool-groups {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.page-about .about-tool-group {
  padding: 16px;
  border: var(--line-soft);
  border-radius: var(--radius);
  background: rgba(13, 20, 36, .74);
}

.page-about .about-tool-label {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-violet);
}

.page-about .about-tool-list {
  list-style: none;
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
}

.page-about .about-tool-item {
  padding: 10px 12px;
  border: 1px solid rgba(30, 76, 138, .3);
  border-radius: 10px;
  background: rgba(7, 10, 18, .62);
  transition: border-color .16s var(--ease), background .16s var(--ease), transform .16s var(--ease);
}

.page-about .about-tool-item:hover,
.page-about .about-tool-item:focus-visible {
  border-color: rgba(57, 242, 200, .68);
  background: rgba(11, 59, 64, .52);
  transform: translateX(2px);
  outline: none;
}

.page-about .about-tool-item:focus-visible {
  box-shadow: 0 0 0 2px var(--c-mint);
}

.page-about .about-tool-name {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--c-white);
}

.page-about .about-tool-use {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-steel);
  transition: color .16s var(--ease);
}

.page-about .about-tool-item:hover .about-tool-use,
.page-about .about-tool-item:focus-visible .about-tool-use {
  color: rgba(244, 248, 255, .9);
}

/* ---------- 合作与荣誉 ---------- */
.page-about .about-eco-grid {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-eco-card {
  padding: 18px;
  border: var(--line-soft);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 100% 0, rgba(139, 123, 255, .16), transparent 62%),
    rgba(13, 20, 36, .74);
}

.page-about .about-eco-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-violet);
}

.page-about .about-eco-title {
  margin: 10px 0 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-white);
}

.page-about .about-eco-text {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-steel);
}

.page-about .about-honor {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  padding: 16px 18px;
  border-left: 2px solid rgba(255, 200, 87, .6);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(13, 20, 36, .6);
}

.page-about .about-honor p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 248, 255, .84);
}

.page-about .about-honor .tag {
  margin-right: 6px;
}

/* ---------- 覆盖与节奏 ---------- */
.page-about .about-cover-grid {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-about .about-cover-panel {
  padding: 20px;
  border: var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(170deg, rgba(13, 20, 36, .9), rgba(7, 10, 18, .78));
}

.page-about .about-cover-title {
  margin: 0;
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-mint);
}

.page-about .about-cover-list {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 14px 0 0;
  padding: 0;
}

.page-about .about-cover-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 248, 255, .8);
}

.page-about .about-cover-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--c-orange);
}

.page-about .about-cover-list strong {
  color: var(--c-white);
  font-weight: 600;
}

/* ---------- 底部行动 ---------- */
.page-about .about-cta {
  display: grid;
  gap: 18px;
  margin-top: 34px;
  padding: 28px 20px;
  border: var(--line);
  border-radius: 80px 16px 80px 16px;
  background:
    radial-gradient(circle at 12% 18%, rgba(255, 107, 44, .18), transparent 58%),
    linear-gradient(160deg, rgba(13, 20, 36, .96), rgba(7, 10, 18, .9));
}

.page-about .about-cta-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--c-white);
}

.page-about .about-cta-text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-steel);
}

.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
    padding: 32px 0;
  }

  .page-about .about-eco-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-tool-groups {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 34px 0 60px;
  }

  .page-about .about-hero-grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: 40px;
  }

  .page-about .about-vert-note {
    position: absolute;
    top: 6px;
    left: -34px;
    margin: 0;
    writing-mode: vertical-rl;
    letter-spacing: .32em;
  }

  .page-about .about-hero-copy {
    padding-left: 20px;
  }

  .page-about .about-hero-side {
    padding-top: 12px;
  }

  .page-about .about-head-split {
    grid-template-columns: 1.15fr 1fr;
    align-items: end;
    gap: 40px;
  }

  .page-about .about-timeline {
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
    border-top: var(--line-soft);
    padding-top: 0;
    margin-top: 34px;
  }

  .page-about .about-tl-item {
    border: none;
    border-radius: 0;
    background: none;
    padding: 26px 18px 8px 0;
    border-right: var(--line-soft);
  }

  .page-about .about-tl-item:last-child {
    border-right: none;
  }

  .page-about .about-tl-item::before {
    content: "";
    position: absolute;
    top: -5px;
    left: 0;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--c-mint);
    box-shadow: 0 0 0 4px rgba(57, 242, 200, .14);
  }

  .page-about .about-tl-item:hover {
    background: rgba(11, 59, 64, .34);
  }

  .page-about .about-team-grid {
    grid-template-columns: 5fr 7fr;
    gap: 38px;
    align-items: center;
  }

  .page-about .about-people {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-cta {
    grid-template-columns: 1.5fr 1fr;
    align-items: center;
    padding: 40px 36px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-about .about-stat,
  .page-about .about-tl-item,
  .page-about .about-tool-item,
  .page-about .about-person,
  .page-about .about-tool-use {
    transition: none;
  }
}
<<<END>>>