.page-about {
  --about-cyan-soft: rgba(0, 229, 255, 0.10);
  --about-orange-soft: rgba(255, 138, 42, 0.14);
  --about-panel: rgba(17, 26, 54, 0.62);
  position: relative;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-about .about-intro {
  padding: clamp(24px, 5vw, 56px) 0 var(--sp-block);
  background-image: radial-gradient(circle at 84% 4%, var(--about-cyan-soft), transparent 56%);
  background-repeat: no-repeat;
}

.page-about .breadcrumb {
  margin-bottom: clamp(20px, 3.2vw, 34px);
}

.page-about .about-kicker {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--amber);
  margin: 0 0 14px;
}

.page-about .about-h1 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(32px, 5.6vw, 66px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  max-width: 20ch;
}

.page-about .about-lede {
  font-family: var(--font-body);
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.8;
  color: var(--ink);
  max-width: 64ch;
  margin: 0 0 clamp(18px, 2.6vw, 26px);
}

.page-about .about-prose {
  max-width: 68ch;
}

.page-about .about-prose p {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
  color: var(--muted);
  margin: 0 0 16px;
}

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

/* 数字概览：细分隔线网格，无卡片圆角 */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-top: clamp(28px, 4.6vw, 44px);
}

.page-about .about-stat {
  background: var(--deep);
  padding: clamp(16px, 2.4vw, 22px) clamp(14px, 2vw, 20px);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-stat__num {
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1;
  font-weight: 700;
  color: var(--cyan);
}

.page-about .about-stat__label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 通用区块 ---------- */
.page-about .about-sec {
  border-top: 1px solid var(--line);
  padding-block: var(--sp-block);
}

.page-about .about-sec > .section__head {
  margin-bottom: clamp(24px, 4vw, 40px);
  max-width: 72ch;
}

.page-about .about-sec .section__label {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--mint);
  margin: 0 0 10px;
}

.page-about .about-sec .section__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--step-h2);
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-about .about-sec .section__sub {
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
}

/* ---------- 图片容器 ---------- */
.page-about .about-fig {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--track);
  padding: 8px;
}

.page-about .about-fig .media__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 3 / 2;
  filter: saturate(1.05) contrast(1.04);
}

.page-about .about-fig .media__caption {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  padding: 10px 4px 2px;
  margin: 0;
}

/* ---------- 定位与起点 ---------- */
.page-about .about-origin__grid {
  display: grid;
  gap: var(--sp-gap);
}

/* ---------- 发展历程 ---------- */
.page-about .tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  position: relative;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--line);
}

.page-about .tl__item {
  position: relative;
  padding-bottom: clamp(24px, 4vw, 34px);
}

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

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 6px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--night);
  border: 1px solid var(--cyan);
  box-shadow: 0 0 0 4px var(--about-cyan-soft);
}

.page-about .tl__year {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.page-about .tl__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--step-h3);
  line-height: 1.2;
  color: var(--ink);
  margin: 0 0 8px;
}

.page-about .tl__text {
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
  max-width: 52ch;
}

.page-about .about-version {
  margin: clamp(28px, 4vw, 42px) 0 0;
  padding: clamp(18px, 2.6vw, 26px) clamp(18px, 2.6vw, 28px);
  background: var(--track);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
}

.page-about .about-version__tag {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--amber);
  margin: 0 0 10px;
}

.page-about .about-version__text {
  font-size: clamp(14px, 1.7vw, 16px);
  line-height: 1.85;
  color: var(--ink);
  margin: 0;
  max-width: 68ch;
}

/* ---------- 运营团队 ---------- */
.page-about .about-team {
  background: linear-gradient(180deg, var(--about-panel), rgba(12, 18, 38, 0.15));
  border-bottom: 1px solid var(--line);
  padding-inline: clamp(16px, 3vw, 32px);
}

.page-about .about-fig--team {
  margin-bottom: clamp(24px, 3.6vw, 36px);
}

.page-about .teamgrid {
  display: grid;
  gap: var(--sp-gap);
}

.page-about .teamcard {
  padding: clamp(18px, 2.6vw, 24px) clamp(16px, 2.4vw, 22px);
  background: var(--deep);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  transition: transform 0.32s var(--ease), border-left-color 0.32s var(--ease), background 0.32s var(--ease);
}

.page-about .teamcard:hover,
.page-about .teamcard:focus-within {
  transform: translateY(-4px);
  border-left-color: var(--orange);
  background: var(--track);
}

.page-about .teamcard__city {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--cyan);
  margin: 0 0 10px;
}

.page-about .teamcard__role {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--step-h3);
  line-height: 1.25;
  color: var(--ink);
  margin: 0 0 10px;
}

.page-about .teamcard__duty {
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
}

/* ---------- 合作生态 ---------- */
.page-about .about-partner__grid {
  display: grid;
  gap: var(--sp-gap);
}

/* ---------- 服务覆盖 ---------- */
.page-about .reachgrid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .reachcell {
  background: var(--night);
  padding: clamp(18px, 2.6vw, 26px) clamp(16px, 2.4vw, 24px);
}

.page-about .reachcell__num {
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1;
  font-weight: 700;
  color: var(--mint);
  margin: 0 0 8px;
}

.page-about .reachcell__unit {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--amber);
  margin: 0 0 10px;
}

.page-about .reachcell__desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
}

.page-about .about-reach__note {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--line);
  font-size: clamp(14px, 1.7vw, 16px);
  line-height: 1.85;
  color: var(--ink);
  max-width: 68ch;
}

/* ---------- 归属与联系 ---------- */
.page-about .contactgrid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-about .contactblock {
  background: var(--deep);
  padding: clamp(18px, 2.6vw, 26px) clamp(16px, 2.4vw, 24px);
}

.page-about .contactblock__label {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin: 0 0 10px;
}

.page-about .contactblock__value {
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.75;
  color: var(--ink);
  margin: 0;
  word-break: break-word;
}

.page-about .contactblock__value.mono {
  color: var(--cyan);
}

.page-about .contactblock__hint {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  margin: 10px 0 0;
}

/* ---------- 相关入口 ---------- */
.page-about .nextlist {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .nextlist__item {
  border-bottom: 1px solid var(--line);
}

.page-about .nextlist__link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(16px, 2.6vw, 22px) 4px;
  text-decoration: none;
  color: inherit;
  transition: padding-left 0.3s var(--ease), background 0.3s var(--ease);
}

.page-about .nextlist__link:hover,
.page-about .nextlist__link:focus-visible {
  padding-left: 16px;
  background: rgba(0, 229, 255, 0.06);
}

.page-about .nextlist__name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(19px, 2.4vw, 26px);
  line-height: 1.2;
  color: var(--ink);
}

.page-about .nextlist__link:hover .nextlist__name,
.page-about .nextlist__link:focus-visible .nextlist__name {
  color: var(--cyan);
}

.page-about .nextlist__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .reachgrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .contactgrid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-about .nextlist__link {
    flex-direction: row;
    align-items: baseline;
    justify-content: space-between;
    gap: clamp(16px, 3vw, 40px);
  }

  .page-about .nextlist__desc {
    text-align: right;
    max-width: 46ch;
  }
}

@media (min-width: 900px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

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

  .page-about .tl {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--sp-gap);
    padding: 34px 0 0;
  }

  .page-about .tl::before {
    left: 0;
    right: 0;
    top: 12px;
    bottom: auto;
    width: auto;
    height: 1px;
    background: var(--line);
  }

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

  .page-about .tl__item::before {
    left: 0;
    top: -28px;
  }

  .page-about .tl__text {
    max-width: 34ch;
  }
}

@media (min-width: 1100px) {
  .page-about .reachgrid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>