.page-about {
  overflow-x: clip;
}

.page-about .about-crumb {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: 18px 0 58px;
}

.page-about .about-hero__grid {
  display: grid;
  gap: 28px;
}

.page-about .about-hero__sticker {
  display: inline-block;
  margin: 0 0 8px;
  font-size: 12px;
}

.page-about .about-hero h1 {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8.2vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--char);
}

.page-about .about-hero__mark {
  box-shadow: inset 0 -0.2em 0 var(--mango-soft);
  color: var(--berry);
}

.page-about .about-hero__lead {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-soft);
}

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

.page-about .hero-spec {
  padding: 22px 20px 20px;
  background: var(--char);
  color: var(--cream);
  border: var(--bd) solid var(--char);
  box-shadow: var(--shadow-mango);
  transform: rotate(-0.8deg);
}

.page-about .hero-spec__cap {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-about .hero-spec__list {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .hero-spec__list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-about .hero-spec__num {
  flex: 0 0 auto;
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  color: var(--mango);
}

.page-about .hero-spec__txt {
  font-size: 13px;
  line-height: 1.55;
  color: var(--cream);
  opacity: 0.86;
}

.page-about .about-batch {
  display: flex;
  align-items: baseline;
  gap: 10px;
  width: 100%;
  margin-top: 20px;
  padding: 12px 0 0;
  border: 0;
  border-top: 1px solid rgba(255, 248, 239, 0.24);
  background: none;
  color: var(--mango-soft);
  font-family: inherit;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-align: left;
  cursor: pointer;
}

.page-about .about-batch__num {
  font-size: 16px;
  color: var(--lime);
}

.page-about .about-batch__state {
  margin-left: auto;
  color: var(--cream);
  opacity: 0.72;
}

.page-about .about-batch:hover .about-batch__state,
.page-about .about-batch:focus-visible .about-batch__state {
  color: var(--lime);
  opacity: 1;
}

/* ---------- 章节通用微调 ---------- */
.page-about .section__num {
  font-family: var(--font-mono);
}

.page-about .about-origin__grid,
.page-about .cred__grid {
  display: grid;
  gap: 26px;
  margin-top: 28px;
}

.page-about .about-origin__text p {
  margin: 0 0 1em;
}

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

.page-about .about-fig {
  margin: 0;
  background: var(--cream);
  border: var(--bd) solid var(--char);
  box-shadow: var(--shadow);
}

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

.page-about .about-fig .media__caption {
  margin: 0;
  padding: 12px 16px;
  border-top: var(--bd) solid var(--char);
  background: var(--mango-soft);
  font-size: 13px;
  line-height: 1.6;
  color: var(--char);
}

/* ---------- 时间线 ---------- */
.page-about .tl {
  position: relative;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: repeating-linear-gradient(
    to bottom,
    var(--crust) 0 6px,
    transparent 6px 13px
  );
}

.page-about .tl__item {
  position: relative;
  padding-left: 36px;
}

.page-about .tl__item + .tl__item {
  margin-top: 26px;
}

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 16px;
  height: 16px;
  background: var(--mango);
  border: var(--bd) solid var(--char);
  border-radius: 50%;
  transition: background-color 120ms ease;
}

.page-about .tl__item:hover::before,
.page-about .tl__item:focus-within::before {
  background: var(--lime);
}

.page-about .tl__card {
  padding: 18px 18px 20px;
  background: var(--cream);
  border: var(--bd) solid var(--char);
  box-shadow: 6px 6px 0 var(--mango-soft);
  transition: box-shadow 120ms ease, border-color 120ms ease, transform 120ms ease;
}

.page-about .tl__item:hover .tl__card,
.page-about .tl__item:focus-within .tl__card {
  transform: translateY(-2px);
  border-color: var(--berry-deep);
  box-shadow: var(--shadow);
}

.page-about .tl__year {
  display: inline-block;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--berry);
}

.page-about .tl__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--char);
}

.page-about .tl__desc {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  background: var(--char);
  color: var(--cream);
  border-top: var(--bd) solid var(--char);
  border-bottom: var(--bd) solid var(--char);
}

.page-about .about-team .section__num {
  color: var(--mango);
}

.page-about .about-team .section__label {
  color: var(--lime);
}

.page-about .about-team .section__title {
  color: var(--cream);
}

.page-about .team-bento {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.page-about .team-card {
  padding: 20px 20px 18px;
  background: var(--cream);
  color: var(--char);
  border: var(--bd) solid var(--char);
  box-shadow: 6px 6px 0 rgba(255, 248, 239, 0.2);
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.page-about .team-card:hover {
  transform: translateY(-2px);
  box-shadow: 10px 10px 0 rgba(255, 248, 239, 0.3);
}

.page-about .team-card--ops {
  background: var(--mango);
}

.page-about .team-card--cs {
  background: var(--berry);
  color: var(--cream);
}

.page-about .team-card--ds {
  background: var(--lime);
}

.page-about .team-card--sum {
  background: transparent;
  color: var(--cream);
  border-style: dashed;
  border-color: var(--cream);
  box-shadow: none;
}

.page-about .team-card__num {
  margin: 0;
  font-size: clamp(44px, 9vw, 74px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.02em;
}

.page-about .team-card__role {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.35;
}

.page-about .team-card__desc {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  opacity: 0.94;
}

.page-about .team-card__more {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid rgba(31, 27, 22, 0.24);
}

.page-about .team-card--cs .team-card__more,
.page-about .team-card--sum .team-card__more {
  border-top-color: rgba(255, 248, 239, 0.4);
}

.page-about .team-card__more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  list-style: none;
}

.page-about .team-card__more summary::-webkit-details-marker {
  display: none;
}

.page-about .team-card__more summary::after {
  content: "+";
  font-size: 15px;
  line-height: 1;
}

.page-about .team-card__more[open] summary::after {
  content: "−";
}

.page-about .team-card__more p {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  opacity: 0.9;
}

/* ---------- 工序 ---------- */
.page-about .about-process__lead {
  max-width: var(--measure);
  margin: 22px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-about .flow {
  display: grid;
  gap: 16px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .flow__step {
  position: relative;
  padding: 18px 18px 20px;
  background: var(--cream);
  border: var(--bd) solid var(--char);
  box-shadow: 6px 6px 0 var(--mango-soft);
}

.page-about .flow__n {
  display: inline-block;
  padding: 2px 8px;
  background: var(--char);
  color: var(--lime);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-about .flow__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  color: var(--char);
}

.page-about .flow__desc {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-about .about-process__fig {
  margin-top: 30px;
}

/* ---------- 陪跑 ---------- */
.page-about .about-onboard {
  padding: 56px 0;
  background: var(--mango-soft);
  border-top: var(--bd) solid var(--char);
  border-bottom: var(--bd) solid var(--char);
}

.page-about .onboard__grid {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}

.page-about .onboard__lead {
  margin: 0;
  max-width: 56ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--char);
}

.page-about .onboard__list {
  display: grid;
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .onboard__list li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(31, 27, 22, 0.2);
}

.page-about .onboard__k {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--berry-deep);
  padding-top: 2px;
}

.page-about .onboard__list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--char);
}

.page-about .onboard__stats {
  display: grid;
  gap: 16px;
}

.page-about .stat-card {
  padding: 22px 22px 20px;
  background: var(--cream);
  border: var(--bd) solid var(--char);
  box-shadow: var(--shadow);
}

.page-about .stat-card--alt {
  background: var(--cream);
  box-shadow: 8px 8px 0 var(--berry);
}

.page-about .stat-card__num {
  margin: 0;
  font-size: clamp(42px, 8vw, 60px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--berry);
}

.page-about .stat-card__unit {
  font-size: 0.45em;
  margin-left: 4px;
}

.page-about .stat-card__label {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  color: var(--char);
}

.page-about .stat-card__note {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 资质与归档 ---------- */
.page-about .cred__list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .cred__list li {
  position: relative;
  padding-left: 28px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--char);
}

.page-about .cred__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 12px;
  background: var(--lime);
  border: 2px solid var(--char);
  border-radius: 50%;
}

/* ---------- 结尾 ---------- */
.page-about .about-cta {
  padding: 54px 0 64px;
  background: var(--char);
  color: var(--cream);
}

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

.page-about .about-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.4vw, 38px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-about .about-cta__lead {
  margin: 14px 0 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--cream);
  opacity: 0.82;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

.page-about .about-cta__btn {
  display: inline-block;
  padding: 13px 22px;
  border: var(--bd) solid var(--cream);
  background: transparent;
  color: var(--cream);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-decoration: none;
  box-shadow: 6px 6px 0 rgba(255, 248, 239, 0.18);
  transition: transform 120ms ease, box-shadow 120ms ease, background-color 120ms ease, color 120ms ease;
}

.page-about .about-cta__btn:hover,
.page-about .about-cta__btn:focus-visible {
  transform: translateY(-2px);
  box-shadow: 10px 10px 0 rgba(255, 248, 239, 0.28);
  background: var(--lime);
  border-color: var(--lime);
  color: var(--char);
}

.page-about .about-cta__btn--solid {
  background: var(--mango);
  border-color: var(--char);
  color: var(--char);
  box-shadow: 6px 6px 0 rgba(255, 248, 239, 0.35);
}

.page-about .about-cta__btn--solid:hover,
.page-about .about-cta__btn--solid:focus-visible {
  background: var(--berry);
  border-color: var(--cream);
  color: var(--cream);
  box-shadow: 10px 10px 0 rgba(255, 248, 239, 0.45);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .about-origin__fig,
  .page-about .cred__fig {
    max-width: 100%;
  }
}

@media (min-width: 860px) {
  .page-about .about-hero {
    padding-bottom: 72px;
  }

  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 34px;
  }

  .page-about .about-hero__lead {
    font-size: 17.5px;
  }

  .page-about .hero-spec {
    padding: 26px 24px 22px;
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
    gap: 40px;
  }

  .page-about .cred__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 40px;
  }

  .page-about .tl__item:nth-child(even) .tl__card {
    margin-left: 60px;
  }

  .page-about .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
  }

  .page-about .flow__step + .flow__step::before {
    content: "→";
    position: absolute;
    left: -17px;
    top: 42%;
    font-family: var(--font-mono);
    font-size: 17px;
    color: var(--berry);
  }

  .page-about .onboard__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: center;
    gap: 34px;
  }
}

@media (min-width: 900px) {
  .page-about .team-bento {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .team-card--ops {
    grid-column: span 7;
  }

  .page-about .team-card--dev {
    grid-column: span 5;
  }

  .page-about .team-card--cs {
    grid-column: span 5;
  }

  .page-about .team-card--ds {
    grid-column: span 3;
  }

  .page-about .team-card--sum {
    grid-column: span 4;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
}