/* ============ 会馆自述 / page-about ============ */

.page-about {
  --about-card: #FFFFFF;
  --about-line: rgba(20, 16, 12, .16);
  --about-pad: clamp(20px, 3vw, 36px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(100px, 13vw, 168px) 0 clamp(46px, 6vw, 88px);
  background:
    radial-gradient(125% 95% at 86% 6%, rgba(232, 150, 60, .40), transparent 62%),
    linear-gradient(168deg, var(--rice) 0%, var(--rice) 44%, var(--apricot-soft) 100%);
  border-bottom: var(--bw) solid var(--charcoal);
}

.page-about .about-hero .container {
  position: relative;
  z-index: 2;
}

.page-about .about-orb {
  position: absolute;
  z-index: 1;
  top: clamp(-56px, -4vw, -18px);
  right: clamp(-52px, -1vw, 60px);
  width: clamp(180px, 25vw, 330px);
  aspect-ratio: 1 / 1.1;
  border-radius: 52% 48% 46% 54% / 62% 60% 40% 38%;
  background: radial-gradient(circle at 34% 28%, #FBE3B4 0%, #F7D9A0 26%, var(--apricot) 64%, var(--apricot-deep) 100%);
  box-shadow: inset -16px -20px 0 rgba(122, 82, 48, .26), var(--shadow-hard);
  opacity: .82;
  pointer-events: none;
}

.page-about .about-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-about .about-hero h1 {
  margin: 14px 0 22px;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: clamp(2.05rem, 5.6vw, 3.9rem);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--charcoal);
}

.page-about .about-hero .lede {
  max-width: 62ch;
  font-size: clamp(1rem, 1.6vw, 1.14rem);
  line-height: 1.9;
  color: #2B2117;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(26px, 3.4vw, 42px);
}

/* ---------- 通用非对称分栏 ---------- */
.page-about .about-split {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-about .about-split__text > p {
  max-width: 66ch;
}

.page-about .plaque-card {
  border: var(--bw) solid var(--charcoal);
  box-shadow: var(--shadow-hard);
  border-radius: var(--r);
  padding: var(--about-pad);
}

.page-about .about-split__aside .plaque-card__body {
  margin-bottom: 0;
}

/* ---------- 时间轴 ---------- */
.page-about .about-branch__head {
  max-width: 62ch;
}

.page-about .about-branch__figure {
  margin: clamp(28px, 4vw, 46px) 0 clamp(34px, 5vw, 62px);
}

.page-about .branch {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 44px;
  display: grid;
  gap: clamp(30px, 4vw, 46px);
}

.page-about .branch::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 10px;
  width: 4px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--bamboo) 0%, var(--apricot) 58%, var(--apricot-deep) 100%);
}

.page-about .branch__node {
  position: relative;
  background: var(--about-card);
  border: var(--bw) solid var(--charcoal);
  border-radius: var(--r);
  box-shadow: var(--shadow-hard);
  padding: clamp(20px, 2.6vw, 28px);
}

.page-about .branch__bud {
  position: absolute;
  left: -44px;
  top: 22px;
  width: 20px;
  height: 24px;
  border-radius: 50% 50% 46% 54% / 60% 58% 42% 40%;
  background: radial-gradient(circle at 34% 30%, #FBE3B4 0%, var(--apricot) 68%, var(--apricot-deep) 100%);
  border: 2px solid var(--charcoal);
}

.page-about .branch__era {
  margin: 0 0 6px;
  font-size: .74rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--wood);
}

.page-about .branch__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.42rem);
  line-height: 1.3;
  color: var(--charcoal);
}

.page-about .branch__impact {
  margin: 0;
  font-size: .98rem;
  line-height: 1.85;
  color: #3A3026;
}

.page-about .branch__more {
  margin-top: 14px;
  border-top: 1px dashed var(--about-line);
  padding-top: 12px;
}

.page-about .branch__more summary {
  cursor: pointer;
  font-size: .88rem;
  letter-spacing: .04em;
  color: var(--bamboo);
}

.page-about .branch__more .fold__body p {
  margin: 12px 0 0;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--taupe);
}

/* ---------- 团队 ---------- */
.page-about .about-team__figure {
  margin: 0;
}

.page-about .team-list {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .team-list__item {
  position: relative;
  padding: 18px 20px 18px 22px;
  border-left: 5px solid var(--apricot);
  background: rgba(247, 217, 160, .34);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

.page-about .team-list__item .seed-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 10px;
  border-radius: var(--r-pill);
  font-size: .92rem;
  letter-spacing: .04em;
}

.page-about .team-list__role {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-size: 1.08rem;
  color: var(--charcoal);
}

.page-about .team-list__item p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.85;
  color: #3A3026;
}

/* ---------- 测评 ---------- */
.page-about .about-metric {
  background:
    radial-gradient(110% 80% at 8% 0%, rgba(232, 150, 60, .26), transparent 58%),
    var(--apricot-soft);
  border-top: var(--bw) solid var(--charcoal);
  border-bottom: var(--bw) solid var(--charcoal);
}

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

.page-about .about-metric__table {
  margin-top: clamp(30px, 4.4vw, 54px);
  border: var(--bw) solid var(--charcoal);
  border-radius: var(--r);
  box-shadow: var(--shadow-hard);
  background: var(--rice);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-metric__table .ledger {
  min-width: 860px;
  width: 100%;
  border-collapse: collapse;
}

.page-about .about-metric__table th,
.page-about .about-metric__table td {
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
  font-size: .92rem;
  line-height: 1.78;
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-metric__table thead th {
  background: var(--ink);
  color: var(--apricot-soft);
  font-family: var(--font-display);
  font-size: .92rem;
  letter-spacing: .04em;
  border-bottom: none;
}

.page-about .about-metric__table tbody th[scope="row"] {
  font-size: 1.05rem;
  color: var(--apricot-deep);
  letter-spacing: .08em;
}

.page-about .about-metric__table tbody tr:hover,
.page-about .about-metric__table tbody tr:focus-within {
  background: rgba(232, 150, 60, .16);
}

.page-about .about-metric__table tbody tr[data-state="highlight"] {
  box-shadow: inset 5px 0 0 var(--cinnabar);
}

.page-about .about-metric__table tbody tr:last-child th,
.page-about .about-metric__table tbody tr:last-child td {
  border-bottom: none;
}

/* ---------- 合作生态 ---------- */
.page-about .partner-grid {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-about .partner-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(22px, 3vw, 32px);
  background: var(--about-card);
  border: var(--bw) solid var(--charcoal);
  border-radius: var(--r);
  box-shadow: var(--shadow-hard);
  transition: transform .32s var(--ease), box-shadow .32s var(--ease);
}

.page-about .partner-card__count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  line-height: 1;
  color: var(--apricot-deep);
}

.page-about .partner-card__count span {
  margin-left: 6px;
  font-family: var(--font-body);
  font-size: .92rem;
  color: var(--taupe);
}

.page-about .partner-card__title {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--charcoal);
}

.page-about .partner-card__body {
  margin: 0 0 18px;
  font-size: .94rem;
  line-height: 1.85;
  color: #3A3026;
}

.page-about .partner-card__tag {
  align-self: flex-start;
  margin-top: auto;
  padding: 6px 14px;
  border: 2px solid var(--bamboo);
  border-radius: var(--r-pill);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--bamboo);
  opacity: .72;
  transition: opacity .3s var(--ease), background-color .3s var(--ease), color .3s var(--ease);
}

.page-about .partner-card--accent {
  background: linear-gradient(160deg, #FFFFFF 0%, rgba(247, 217, 160, .7) 100%);
}

.page-about .partner-card--accent .partner-card__tag {
  border-color: var(--cinnabar);
  color: var(--cinnabar);
}

/* ---------- 数据墙 ---------- */
.page-about .about-wall {
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(232, 150, 60, .22), transparent 56%),
    linear-gradient(170deg, var(--ink) 0%, var(--ink-2) 100%);
  color: var(--apricot-soft);
}

.page-about .about-wall .eyebrow {
  color: var(--apricot);
}

.page-about .about-wall .section-title {
  color: var(--rice);
  max-width: 26ch;
}

.page-about .stat-wall {
  list-style: none;
  margin: clamp(30px, 4.6vw, 56px) 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
  background: rgba(247, 217, 160, .18);
  border: 2px solid rgba(247, 217, 160, .28);
  border-radius: var(--r);
  overflow: hidden;
}

.page-about .stat-wall__cell {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(22px, 3vw, 34px) clamp(18px, 2.4vw, 28px);
  background: rgba(22, 52, 42, .92);
}

.page-about .stat-wall__num {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 6.4vw, 3.2rem);
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--apricot);
}

.page-about .stat-wall__label {
  font-size: .88rem;
  letter-spacing: .06em;
  color: rgba(253, 246, 233, .82);
}

.page-about .about-wall__note {
  margin: clamp(22px, 3vw, 32px) 0 0;
  max-width: 70ch;
  font-size: .9rem;
  line-height: 1.9;
  color: rgba(253, 246, 233, .72);
}

/* ---------- 收尾 ---------- */
.page-about .about-cta__inner {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
  align-items: center;
  padding: clamp(26px, 3.6vw, 44px);
  background: linear-gradient(150deg, rgba(247, 217, 160, .55) 0%, rgba(253, 246, 233, .9) 100%);
  border: var(--bw) solid var(--charcoal);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-hard);
}

.page-about .about-cta__text .section-title {
  margin-bottom: 12px;
}

.page-about .about-cta__text p {
  margin: 0;
  max-width: 60ch;
  font-size: .96rem;
  line-height: 1.9;
  color: #3A3026;
}

.page-about .about-cta__inner .btn {
  justify-self: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .stat-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-about .about-split--flip {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
  .page-about .about-split__aside .plaque-card {
    position: sticky;
    top: 120px;
  }
  .page-about .partner-card:hover {
    transform: translate(-3px, -3px);
    box-shadow: 9px 9px 0 var(--charcoal);
  }
  .page-about .partner-card:hover .partner-card__tag {
    opacity: 1;
    background: var(--bamboo);
    color: var(--rice);
  }
  .page-about .partner-card--accent:hover .partner-card__tag {
    background: var(--cinnabar);
    color: var(--rice);
  }
  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    justify-items: end;
  }
  .page-about .about-cta__inner .btn {
    justify-self: end;
  }
}

@media (min-width: 960px) {
  .page-about .branch {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 clamp(18px, 2.4vw, 36px);
    padding-left: 0;
    padding-top: 44px;
  }
  .page-about .branch::before {
    left: 0;
    right: 0;
    top: 15px;
    bottom: auto;
    width: auto;
    height: 4px;
    background: linear-gradient(90deg, var(--bamboo) 0%, var(--apricot) 56%, var(--apricot-deep) 100%);
  }
  .page-about .branch__node {
    padding-top: 30px;
  }
  .page-about .branch__bud {
    left: 0;
    top: 0;
  }
  .page-about .branch__node:nth-child(2),
  .page-about .branch__node:nth-child(4) {
    padding-top: 84px;
  }
}

@media (min-width: 1080px) {
  .page-about .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .stat-wall {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .partner-card,
  .page-about .partner-card__tag {
    transition: none;
  }
  .page-about .partner-card:hover {
    transform: none;
  }
}