.page-about {
  --moss-tint: rgba(91, 107, 87, 0.10);
  --clay-tint: rgba(184, 107, 75, 0.11);
  --stone-tint: rgba(139, 143, 134, 0.14);
  --gold-tint: rgba(214, 168, 75, 0.15);
  --cyan-tint: rgba(56, 214, 217, 0.13);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

.page-about .about-wrap {
  width: 100%;
  max-width: calc(var(--shell) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-about h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.45rem, 3.2vw, 2rem);
  line-height: 1.34;
  letter-spacing: -0.005em;
  margin: 0 0 .7rem;
  color: var(--ink);
}

.page-about figcaption {
  margin-top: .7rem;
  font-size: .82rem;
  line-height: 1.6;
  color: var(--stone);
}

/* ---------- 媒体容器 ---------- */
.page-about .about-media {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-lg);
  background: var(--ink-soft);
  box-shadow: var(--shadow-card);
}
.page-about .about-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-about .about-media--lead { aspect-ratio: 3 / 2; }
.page-about .about-media--lead::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(14, 17, 20, 0) 56%, rgba(14, 17, 20, .58) 100%);
}
.page-about .about-media--slab { aspect-ratio: 21 / 9; }
.page-about .about-media--review { aspect-ratio: 3 / 2; }

/* ---------- 首屏 ---------- */
.page-about .about-intro {
  padding-block: clamp(1.1rem, 3vw, 1.8rem) clamp(2.4rem, 6vw, 4rem);
}
.page-about .about-intro__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 3.5vw, 3rem);
  margin-top: clamp(1.2rem, 3vw, 2rem);
}
.page-about .about-intro h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.8rem, 4.6vw, 3rem);
  line-height: 1.24;
  letter-spacing: -0.012em;
  margin: .55rem 0 1rem;
  color: var(--ink);
}
.page-about .about-lede {
  margin: 0;
  max-width: 46ch;
  font-size: 1.0625rem;
  line-height: 1.86;
  color: var(--ink-soft);
}
.page-about .about-intro__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem 2rem;
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 1.05rem 0 0;
  border-top: 1px solid var(--rule-light);
}
.page-about .about-intro__stats li {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  min-width: 0;
}
.page-about .about-intro__stats li::before {
  content: "";
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gold);
  margin-bottom: .5rem;
}
.page-about .about-intro__stats .num {
  font-size: 1.4rem;
  line-height: 1.1;
  color: var(--ink);
}
.page-about .about-intro__stat-label {
  font-size: .8rem;
  letter-spacing: .04em;
  color: var(--stone);
}
.page-about .about-intro__figure { margin: 0; }

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  padding-block: clamp(2.3rem, 5.5vw, 4rem);
  background: var(--paper-raised);
  border-block: 1px solid var(--rule-light);
}
.page-about .about-timeline__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.2rem, 3vw, 2.2rem);
}
.page-about .about-section__note {
  margin: 0;
  max-width: 58ch;
  font-size: .95rem;
  line-height: 1.82;
  color: var(--ink-soft);
}

.page-about .about-rail__label {
  margin: 0 0 .6rem;
  font-family: var(--font-num);
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--stone);
}
.page-about .about-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
}
.page-about .about-rail__item {
  font-family: var(--font-num);
  font-size: .76rem;
  letter-spacing: .05em;
  color: var(--stone);
  padding: .18rem .55rem;
  border-radius: 2px;
  background: rgba(139, 143, 134, .12);
}
.page-about .about-rail__item--now {
  background: var(--ink);
  color: var(--gold);
}

.page-about .about-stages {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .8rem;
}
.page-about .about-stage {
  padding: 1.05rem 1.1rem 1.15rem;
  background: var(--paper);
  border: 1px solid var(--rule-light);
  border-left: 3px solid var(--stone);
  border-radius: var(--r-sm);
  transition: border-color var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease),
              transform var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}
.page-about .about-stage:hover,
.page-about .about-stage:focus-within {
  border-left-color: var(--gold);
  background: #ffffff;
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}
.page-about .about-stage__top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .65rem;
  margin-bottom: .4rem;
}
.page-about .about-stage__badge {
  font-family: var(--font-num);
  font-size: .72rem;
  letter-spacing: .1em;
  padding: .16rem .5rem;
  border-radius: 2px;
  background: var(--ink);
  color: var(--gold);
}
.page-about .about-stage h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.06rem;
  line-height: 1.42;
  margin: 0;
  color: var(--ink);
}
.page-about .about-stage p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 矿物色带 ---------- */
.page-about .about-band {
  padding-block: clamp(2.2rem, 5.5vw, 3.6rem);
  background:
    repeating-linear-gradient(115deg, rgba(255, 255, 255, .055) 0 2px, rgba(255, 255, 255, 0) 2px 11px),
    linear-gradient(112deg, var(--clay) 0%, #8f5a41 48%, var(--moss) 100%);
  color: var(--paper);
}
.page-about .about-band__quote {
  margin: 0;
  max-width: 34ch;
  font-family: var(--font-display);
  font-size: clamp(1.28rem, 3.3vw, 2rem);
  line-height: 1.55;
  color: var(--paper);
}
.page-about .about-band__note {
  margin: 1.1rem 0 0;
  max-width: 44ch;
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(242, 237, 227, .8);
}

/* ---------- 栏目体系 ---------- */
.page-about .about-pillars-section {
  padding-block: clamp(2.3rem, 5.5vw, 4rem) clamp(2.4rem, 6vw, 4rem);
}
.page-about .about-section__head {
  max-width: 62ch;
  margin-bottom: clamp(1.3rem, 3vw, 2rem);
}
.page-about .about-section__head p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--ink-soft);
}
.page-about .about-pillars {
  display: grid;
  grid-template-columns: 1fr;
  gap: .8rem;
}
.page-about .about-pillar {
  position: relative;
  padding: 1.2rem 1.15rem 1.25rem 2.9rem;
  border-radius: var(--r-lg);
  border: 1px solid transparent;
  background: var(--gold-tint);
  min-width: 0;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.page-about .about-pillar:hover { transform: translateY(-2px); }
.page-about .about-pillar--clay { background: var(--clay-tint); }
.page-about .about-pillar--moss { background: var(--moss-tint); }
.page-about .about-pillar--stone { background: var(--stone-tint); }
.page-about .about-pillar--cyan { background: var(--cyan-tint); }
.page-about .about-pillar--gold { background: var(--gold-tint); }
.page-about .about-pillar--clay:hover { border-color: var(--clay); }
.page-about .about-pillar--moss:hover { border-color: var(--moss); }
.page-about .about-pillar--stone:hover { border-color: var(--stone); }
.page-about .about-pillar--cyan:hover { border-color: var(--cyan); }
.page-about .about-pillar--gold:hover { border-color: var(--gold); }
.page-about .about-pillar__no {
  position: absolute;
  left: 1.05rem;
  top: 1.32rem;
  font-family: var(--font-num);
  font-size: .76rem;
  letter-spacing: .05em;
  color: var(--stone);
}
.page-about .about-pillar h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.04rem;
  margin: 0 0 .35rem;
  color: var(--ink);
}
.page-about .about-pillar p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--ink-soft);
}
.page-about .about-pillars__figure {
  margin: clamp(1.4rem, 3vw, 2.2rem) 0 0;
}

/* ---------- 三审三校 ---------- */
.page-about .about-review {
  padding-block: clamp(2.4rem, 6vw, 4rem);
  border-top: 1px solid var(--rule-light);
}
.page-about .about-review__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 3.5vw, 2.8rem);
}
.page-about .about-review__lede {
  margin: 0;
  max-width: 54ch;
  font-size: .96rem;
  line-height: 1.85;
  color: var(--ink-soft);
}
.page-about .about-review__steps {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.page-about .about-review__steps li {
  position: relative;
  padding-left: 2.5rem;
}
.page-about .about-review__steps li::before {
  content: "";
  position: absolute;
  left: .36rem;
  top: 1.6rem;
  bottom: -1rem;
  width: 1px;
  background: var(--rule-light);
}
.page-about .about-review__steps li:last-child::before { display: none; }
.page-about .about-review__steps .num {
  position: absolute;
  left: 0;
  top: .15rem;
  font-size: .76rem;
  letter-spacing: .05em;
  color: var(--moss);
}
.page-about .about-review__steps h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .99rem;
  margin: 0 0 .2rem;
  color: var(--ink);
}
.page-about .about-review__steps p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.78;
  color: var(--ink-soft);
}
.page-about .about-review__figure { margin: 0; }

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding-block: clamp(2.4rem, 6vw, 4rem);
  background: var(--paper-raised);
  border-block: 1px solid var(--rule-light);
}
.page-about .about-team__lede {
  margin: 0;
  max-width: 62ch;
  font-size: .96rem;
  line-height: 1.85;
  color: var(--ink-soft);
}
.page-about .about-team__bar {
  display: flex;
  height: 84px;
  margin: 1.6rem 0 1rem;
  border-radius: var(--r-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.page-about .about-team__seg {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  color: var(--paper);
}
.page-about .about-team__seg .num {
  font-size: clamp(1rem, 2.6vw, 1.4rem);
  line-height: 1;
}
.page-about .about-team__seg--edit { flex: 12 1 0; background: var(--moss); }
.page-about .about-team__seg--check { flex: 4 1 0; background: var(--clay); }
.page-about .about-team__seg--ops { flex: 3 1 0; background: var(--ink); }

.page-about .about-team__legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.5rem;
}
.page-about .about-team__legend li {
  display: flex;
  align-items: center;
  gap: .45rem;
  font-size: .88rem;
  color: var(--ink-soft);
}
.page-about .about-team__key {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex: none;
}
.page-about .about-team__key--edit { background: var(--moss); }
.page-about .about-team__key--check { background: var(--clay); }
.page-about .about-team__key--ops { background: var(--ink); }

.page-about .about-team__rhythm {
  display: grid;
  grid-template-columns: 1fr;
  gap: .8rem;
  margin-top: 1.6rem;
}
.page-about .about-team__rhythm > div {
  padding: 1.1rem 1.2rem;
  background: var(--paper);
  border: 1px solid var(--rule-light);
  border-radius: var(--r-md);
}
.page-about .about-team__rhythm .num {
  display: block;
  font-size: 1.9rem;
  line-height: 1;
  color: var(--ink);
}
.page-about .about-team__rhythm p {
  margin: .5rem 0 0;
  font-size: .88rem;
  color: var(--stone);
}

/* ---------- 重庆本地 ---------- */
.page-about .about-local {
  padding-block: clamp(2.4rem, 6vw, 4rem);
}
.page-about .about-local__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 3vw, 2.4rem);
}
.page-about .about-local__text p {
  margin: 0 0 .9rem;
  max-width: 58ch;
  font-size: .96rem;
  line-height: 1.85;
  color: var(--ink-soft);
}
.page-about .about-local__text p:last-child { margin-bottom: 0; }
.page-about .about-local__card {
  padding: 1.4rem 1.3rem;
  background: var(--ink);
  border-radius: var(--r-lg);
  color: var(--paper);
}
.page-about .about-local__card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .95rem;
}
.page-about .about-local__card li {
  display: flex;
  align-items: baseline;
  gap: .65rem;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--on-dark);
  min-width: 0;
}
.page-about .about-local__num {
  font-size: 1.45rem;
  line-height: 1;
  color: var(--gold);
  flex: none;
}
.page-about .about-local__tag {
  flex: none;
  font-family: var(--font-num);
  font-size: .68rem;
  letter-spacing: .08em;
  padding: .1rem .4rem;
  border: 1px solid var(--gold-line);
  border-radius: 2px;
  color: var(--gold);
}
.page-about .about-local__addr {
  margin: 1.2rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--rule-dark);
  font-size: .86rem;
  letter-spacing: .02em;
  color: var(--on-dark-dim);
}

/* ---------- 收尾 ---------- */
.page-about .about-close {
  padding-block: clamp(1rem, 3vw, 1.6rem) clamp(2.6rem, 6vw, 4.2rem);
}
.page-about .about-close__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(1.6rem, 4vw, 2.6rem);
  background: var(--ink-deep);
  border-radius: var(--r-lg);
  color: var(--paper);
}
.page-about .about-close__panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--cyan), rgba(56, 214, 217, 0));
}
.page-about .about-close__panel h2 { color: var(--paper); }
.page-about .about-close__panel p {
  margin: 0 0 1.5rem;
  max-width: 52ch;
  font-size: .94rem;
  line-height: 1.85;
  color: var(--on-dark);
}
.page-about .about-close__links {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-about .about-team__rhythm { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 760px) {
  .page-about .about-pillars { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .page-about .about-pillar:nth-child(1) { grid-column: span 4; }
  .page-about .about-pillar:nth-child(2) { grid-column: span 2; }
  .page-about .about-pillar:nth-child(3) { grid-column: span 2; }
  .page-about .about-pillar:nth-child(4) { grid-column: span 4; }
  .page-about .about-pillar:nth-child(5) { grid-column: span 6; }
}

@media (min-width: 900px) {
  .page-about .about-intro__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: end;
  }
  .page-about .about-review__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .76fr);
    align-items: start;
  }
  .page-about .about-review__figure { position: sticky; top: 6rem; }
  .page-about .about-local__grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-about .about-timeline__grid {
    grid-template-columns: 172px minmax(0, 1fr);
    column-gap: clamp(1.6rem, 3vw, 2.6rem);
  }
  .page-about .about-timeline__head { grid-column: 1 / -1; }
  .page-about .about-rail { position: sticky; top: 6rem; align-self: start; }
  .page-about .about-rail__list { display: block; }
  .page-about .about-rail__item {
    display: block;
    background: none;
    border-left: 1px solid var(--rule-light);
    border-radius: 0;
    padding: .5rem 0 .5rem 1.05rem;
    position: relative;
    font-size: .78rem;
  }
  .page-about .about-rail__item::before {
    content: "";
    position: absolute;
    left: -4px;
    top: 50%;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--stone);
    transform: translateY(-50%);
  }
  .page-about .about-rail__item--now {
    color: var(--ink);
    border-left-color: var(--gold);
    background: none;
  }
  .page-about .about-rail__item--now::before {
    background: var(--gold);
    box-shadow: 0 0 0 4px var(--gold-soft);
  }
}

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