.page-about {
  --about-line-soft: rgba(20, 16, 15, .14);
  background: var(--ivory);
  color: var(--ink);
  font-family: var(--font-body);
  padding-bottom: 72px;
  overflow-x: hidden;
}

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

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: 28px 0 48px;
  background:
    radial-gradient(110% 85% at 6% 0%, rgba(243, 217, 220, .95) 0%, rgba(243, 217, 220, 0) 62%),
    radial-gradient(70% 60% at 96% 8%, rgba(200, 169, 106, .26) 0%, rgba(200, 169, 106, 0) 64%);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(45deg, rgba(179, 18, 75, .05) 0 1px, transparent 1px 15px),
    repeating-linear-gradient(-45deg, rgba(179, 18, 75, .05) 0 1px, transparent 1px 15px);
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(31px, 7.4vw, 60px);
  line-height: 1.1;
  letter-spacing: -.02em;
  margin: 14px 0 18px;
}

.page-about .about-hero__copy .lede {
  max-width: 46ch;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .about-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .about-facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--paper);
  border: var(--line);
  box-shadow: var(--shadow-hard);
}

.page-about .about-facts__num {
  font-size: 22px;
  font-weight: 700;
  color: var(--velvet);
  letter-spacing: .02em;
}

.page-about .about-facts__label {
  font-size: 13px;
  color: var(--ink-soft);
}

/* ---------- 起源 ---------- */
.page-about .about-origin {
  padding: 8px 0 48px;
  border-top: 2px solid var(--ink);
  background: var(--paper);
}

.page-about .about-origin__grid {
  display: grid;
  gap: 28px;
  padding-top: 40px;
}

.page-about .about-origin__copy .section-title {
  margin: 10px 0 16px;
}

.page-about .about-origin__copy .prose {
  margin: 0 0 14px;
}

.page-about .about-origin__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-origin__list li {
  position: relative;
  padding: 10px 14px 10px 36px;
  background: var(--blush);
  border: 2px solid var(--ink);
  font-size: 15px;
  line-height: 1.6;
}

.page-about .about-origin__list li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 50%;
  width: 10px;
  height: 10px;
  transform: translateY(-50%) rotate(45deg);
  background: var(--velvet);
  border: 1px solid var(--ink);
}

.page-about .about-origin__figure {
  margin: 0;
  border: var(--line);
  box-shadow: var(--shadow-hard-lg);
  background: var(--blush);
  overflow: hidden;
}

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

.page-about .about-origin__cap {
  display: block;
  padding: 10px 14px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-soft);
  border-top: 2px solid var(--ink);
  background: var(--paper);
}

/* ---------- 时间轨 ---------- */
.page-about .about-timeline {
  padding: 52px 0 44px;
  background:
    linear-gradient(180deg, var(--ivory) 0%, var(--ivory) 100%),
    radial-gradient(60% 50% at 100% 0%, rgba(200, 169, 106, .18) 0%, rgba(200, 169, 106, 0) 70%);
}

.page-about .about-timeline .section-head {
  margin-bottom: 28px;
}

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

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 10px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--champagne) 0%, rgba(200, 169, 106, .22) 100%);
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 26px 40px;
}

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

.page-about .timeline__node {
  position: absolute;
  left: 0;
  top: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--blush);
  border: 2px solid var(--ink);
}

.page-about .timeline__body {
  background: var(--paper);
  border: var(--line);
  box-shadow: var(--shadow-hard);
  padding: 16px 18px;
  transition: transform 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-about .timeline__body:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hard-lg);
}

.page-about .timeline__ver {
  display: inline-block;
  margin-bottom: 8px;
}

.page-about .timeline__title {
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.35;
  margin: 0 0 8px;
}

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

.page-about .about-timeline__figure {
  margin: 32px 0 0;
  border: var(--line);
  box-shadow: var(--shadow-hard-lg);
  overflow: hidden;
  background: var(--blush);
}

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

.page-about .about-timeline__cap {
  display: block;
  padding: 10px 14px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-soft);
  border-top: 2px solid var(--ink);
  background: var(--paper);
}

/* ---------- 团队条形 ---------- */
.page-about .about-team {
  padding: 48px 0;
  background: var(--cocoa);
  color: var(--ivory);
}

.page-about .about-team .section-title {
  color: var(--ivory);
}

.page-about .about-team .eyebrow {
  color: var(--champagne);
}

.page-about .about-team .section-note {
  color: rgba(251, 246, 243, .74);
}

.page-about .about-team .section-head {
  margin-bottom: 28px;
}

.page-about .team-bars {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
  counter-reset: team;
}

.page-about .team-bar {
  padding: 16px 18px;
  background: rgba(251, 246, 243, .05);
  border: 2px solid rgba(251, 246, 243, .22);
  transition: border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-about .team-bar:hover,
.page-about .team-bar:focus-within {
  border-color: var(--champagne);
  background: rgba(251, 246, 243, .1);
}

.page-about .team-bar__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.page-about .team-bar__name {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: .01em;
}

.page-about .team-bar__num {
  font-size: 14px;
  color: var(--champagne);
}

.page-about .team-bar__track {
  height: 14px;
  background: rgba(243, 217, 220, .16);
  border: 2px solid rgba(251, 246, 243, .3);
  overflow: hidden;
}

.page-about .team-bar__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--velvet) 0%, var(--champagne) 100%);
}

.page-about .team-bar--a .team-bar__fill { width: 29%; }
.page-about .team-bar--b .team-bar__fill { width: 23%; }
.page-about .team-bar--c .team-bar__fill { width: 19%; }
.page-about .team-bar--d .team-bar__fill { width: 17%; }
.page-about .team-bar--e .team-bar__fill { width: 13%; }

.page-about .team-bar__note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(251, 246, 243, .78);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 220ms var(--ease), opacity 200ms var(--ease), margin-top 200ms var(--ease);
}

.page-about .team-bar:hover .team-bar__note,
.page-about .team-bar:focus-within .team-bar__note {
  max-height: 12em;
  opacity: 1;
}

@media (hover: none) {
  .page-about .team-bar__note {
    max-height: none;
    opacity: 1;
    margin-top: 12px;
  }
}

/* ---------- 覆盖范围 ---------- */
.page-about .about-reach {
  padding: 48px 0 40px;
  background: var(--paper);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

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

.page-about .about-reach__copy .section-title {
  margin: 10px 0 16px;
}

.page-about .about-reach__copy .prose {
  margin: 0 0 14px;
}

.page-about .about-reach__visual {
  margin: 0;
  border: var(--line);
  box-shadow: var(--shadow-hard-lg);
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 30%, rgba(179, 18, 75, .12) 0 2px, transparent 2px),
    var(--blush);
  background-size: 22px 22px, auto;
}

.page-about .about-reach__visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  mix-blend-mode: multiply;
}

.page-about .reach-stats {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-about .reach-stats__item {
  padding: 14px 16px;
  background: var(--ivory);
  border: var(--line);
  box-shadow: var(--shadow-hard);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-about .reach-stats__num {
  font-size: 24px;
  font-weight: 700;
  color: var(--velvet-deep);
  letter-spacing: .01em;
}

.page-about .reach-stats__label {
  font-size: 13px;
  color: var(--ink-soft);
}

/* ---------- 维护节奏 ---------- */
.page-about .about-rhythm {
  padding: 48px 0;
  background:
    radial-gradient(90% 70% at 0% 100%, rgba(243, 217, 220, .8) 0%, rgba(243, 217, 220, 0) 62%),
    var(--ivory);
}

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

.page-about .about-rhythm__copy .section-title {
  margin: 10px 0 16px;
}

.page-about .about-rhythm__copy .prose {
  margin: 0 0 14px;
}

.page-about .about-rhythm__link {
  display: inline-block;
  margin-top: 6px;
}

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

.page-about .rhythm__item {
  position: relative;
  padding: 18px 18px 18px 22px;
  background: var(--paper);
  border: var(--line);
  box-shadow: var(--shadow-hard);
}

.page-about .rhythm__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
  background: var(--velvet);
}

.page-about .rhythm__tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--velvet-deep);
  border: 1px solid var(--champagne);
  padding: 2px 8px;
  margin-bottom: 8px;
}

.page-about .rhythm__title {
  font-family: var(--font-display);
  font-size: 19px;
  margin: 0 0 6px;
}

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

/* ---------- 四件事 ---------- */
.page-about .about-why {
  padding: 48px 0;
  background: var(--cocoa);
  color: var(--ivory);
}

.page-about .about-why .section-title {
  color: var(--ivory);
}

.page-about .about-why .eyebrow {
  color: var(--champagne);
}

.page-about .about-why .section-head {
  margin-bottom: 26px;
}

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

.page-about .why-card {
  padding: 18px;
  border: 2px solid rgba(251, 246, 243, .22);
  background: rgba(251, 246, 243, .04);
  transition: transform 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-about .why-card:hover {
  transform: translateY(-2px);
  border-color: var(--champagne);
  background: rgba(251, 246, 243, .09);
}

.page-about .why-card__num {
  display: block;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--champagne);
  margin-bottom: 10px;
}

.page-about .why-card__title {
  font-family: var(--font-display);
  font-size: 19px;
  margin: 0 0 8px;
  color: var(--ivory);
}

.page-about .why-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(251, 246, 243, .76);
}

/* ---------- 收束 ---------- */
.page-about .about-close {
  padding: 52px 0 24px;
  background:
    linear-gradient(180deg, var(--blush) 0%, var(--blush) 100%);
  border-top: 2px solid var(--ink);
}

.page-about .about-close__inner {
  max-width: 780px;
}

.page-about .about-close__lead {
  font-family: var(--font-display);
  font-size: clamp(24px, 5.4vw, 40px);
  line-height: 1.28;
  letter-spacing: -.01em;
  margin: 0 0 18px;
  color: var(--ink);
}

.page-about .about-close__text {
  font-size: 16px;
  line-height: 1.8;
  margin: 0 0 24px;
  color: var(--ink-soft);
  max-width: 60ch;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero {
    padding: 40px 0 64px;
  }

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

  .page-about .reach-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-about .timeline__item {
    padding-left: 56px;
  }
}

@media (min-width: 960px) {
  .page-about {
    padding-bottom: 88px;
  }

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

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

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
    gap: 44px;
  }

  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: center;
    gap: 44px;
  }

  .page-about .about-rhythm__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: 44px;
  }

  .page-about .timeline {
    max-width: 860px;
  }

  .page-about .about-timeline__figure {
    max-width: 640px;
    margin-top: 40px;
  }

  .page-about .team-bars {
    grid-template-columns: minmax(0, 1fr);
    max-width: 820px;
    gap: 16px;
  }

  .page-about .team-bar {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    grid-template-areas:
      "head track"
      "note note";
    align-items: center;
    column-gap: 24px;
  }

  .page-about .team-bar__head {
    grid-area: head;
    margin-bottom: 0;
  }

  .page-about .team-bar__track {
    grid-area: track;
  }

  .page-about .team-bar__note {
    grid-area: note;
  }

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

  .page-about .about-close {
    padding: 72px 0 40px;
  }
}