.page-about {
  --about-rule: rgba(201, 151, 59, 0.38);
  --about-muted: rgba(27, 42, 65, 0.72);
  background: var(--rice);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.78;
  overflow-x: hidden;
}

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

.page-about h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.7rem, 4.4vw, 2.9rem);
  line-height: 1.16;
  letter-spacing: 0.01em;
  margin: 0 0 14px;
  color: var(--ink);
}

.page-about .about-sec-head {
  max-width: 60ch;
  margin-bottom: clamp(26px, 4vw, 42px);
}

.page-about .about-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--clay-deep);
  margin-bottom: 16px;
}

.page-about .about-kicker::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--brass);
}

/* 首屏 */
.page-about .about-head {
  position: relative;
  padding-top: clamp(36px, 6vw, 72px);
  padding-bottom: clamp(34px, 5vw, 62px);
  overflow: hidden;
  isolation: isolate;
}

.page-about .about-head::before {
  content: "2016";
  position: absolute;
  right: -8%;
  top: -16%;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(8rem, 30vw, 21rem);
  line-height: 0.78;
  letter-spacing: -0.03em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(228, 87, 46, 0.2);
  z-index: -1;
  pointer-events: none;
  user-select: none;
}

.page-about .about-head__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.6vw, 4.5rem);
  line-height: 1.06;
  letter-spacing: 0.01em;
  margin: 0 0 22px;
  max-width: 14ch;
  color: var(--ink);
}

.page-about .about-head__note {
  max-width: 54ch;
  margin: 0;
  font-size: clamp(0.98rem, 1.6vw, 1.1rem);
  color: var(--about-muted);
  padding-left: 18px;
  border-left: 3px solid var(--clay);
}

/* 历程 */
.page-about .about-history__grid {
  display: grid;
  gap: clamp(26px, 4vw, 42px);
}

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

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

.page-about .about-node {
  padding: 22px 0 26px;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-node:last-child {
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-node__year {
  display: block;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: clamp(2.5rem, 11vw, 3.9rem);
  line-height: 0.86;
  letter-spacing: -0.02em;
  color: var(--clay);
  margin-bottom: 12px;
}

.page-about .about-node__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.12rem, 2.4vw, 1.45rem);
  line-height: 1.32;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-about .about-node__text {
  margin: 0;
  font-size: 0.96rem;
  color: var(--about-muted);
}

/* 团队 */
.page-about .about-team__body {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

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

.page-about .about-team__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-roster {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--about-rule);
}

.page-about .about-roster:last-child {
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-roster__num {
  flex: 0 0 auto;
  min-width: 2.2ch;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 2.1rem;
  line-height: 1;
  color: var(--jade);
}

.page-about .about-roster__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.06rem;
  line-height: 1.3;
  margin: 0 0 4px;
  color: var(--ink);
}

.page-about .about-roster__text {
  margin: 0;
  font-size: 0.95rem;
  color: var(--about-muted);
}

/* 服务标准 */
.page-about .about-rules {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-rules__item {
  background: var(--rice);
  border-radius: var(--r-lg);
  border-left: 5px solid var(--clay);
  padding: 26px 22px 24px;
  box-shadow: var(--shadow-card);
}

.page-about .about-rules__item:nth-child(2) {
  border-left-color: var(--jade);
}

.page-about .about-rules__item:nth-child(3) {
  border-left-color: var(--tie);
}

.page-about .about-rules__idx {
  display: block;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.08em;
  color: var(--brass);
  margin-bottom: 10px;
}

.page-about .about-rules__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  line-height: 1.32;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-about .about-rules__text {
  margin: 0;
  font-size: 0.94rem;
  color: var(--about-muted);
}

.page-about .about-standard__stats {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--terracotta);
  border-radius: var(--r-md);
  padding: 18px 20px;
}

.page-about .about-stat__num {
  font-family: var(--font-num);
  font-weight: 700;
  font-size: 2rem;
  line-height: 1;
  color: var(--clay-deep);
}

.page-about .about-stat__label {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--about-muted);
}

/* 合作网络 */
.page-about .about-network {
  background: var(--ink);
  color: var(--rice);
}

.page-about .about-network h2 {
  color: var(--rice);
}

.page-about .about-network .lede,
.page-about .about-network p {
  color: rgba(251, 246, 238, 0.8);
}

.page-about .about-network__body {
  display: grid;
  gap: clamp(26px, 4vw, 40px);
  align-items: start;
}

.page-about .about-cities {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-cities__item {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border-radius: var(--r-pill);
  background: rgba(251, 246, 238, 0.08);
  border: 1px solid rgba(251, 246, 238, 0.2);
  font-size: 0.94rem;
  font-weight: 700;
  transition: background 0.22s var(--ease), transform 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-about .about-cities__item:hover,
.page-about .about-cities__item:focus-visible {
  background: var(--jade);
  border-color: var(--jade);
  transform: translateY(-3px);
}

.page-about .about-cities__item--home {
  background: var(--clay);
  border-color: var(--clay);
  color: var(--ink);
}

.page-about .about-cities__item--home:hover,
.page-about .about-cities__item--home:focus-visible {
  background: var(--brass);
  border-color: var(--brass);
}

.page-about .about-network__note {
  margin: 0;
  font-size: 0.94rem;
  max-width: 46ch;
}

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

.page-about .about-network__figure .media-frame__caption {
  color: rgba(251, 246, 238, 0.66);
}

/* 线下咨询 */
.page-about .about-visit__panel {
  background: var(--terracotta);
  border-radius: var(--r-lg);
  padding: clamp(26px, 5vw, 52px);
  display: grid;
  gap: clamp(22px, 3vw, 32px);
}

.page-about .about-visit__text p {
  margin: 0 0 14px;
  color: var(--about-muted);
  font-size: 0.97rem;
}

.page-about .about-visit__cta {
  margin-top: 8px;
  display: inline-block;
}

.page-about .about-visit__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-visit__facts li {
  background: var(--rice);
  border-radius: var(--r-md);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-about .about-visit__facts strong {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  color: var(--clay-deep);
}

.page-about .about-visit__facts span {
  font-size: 0.86rem;
  color: var(--about-muted);
  line-height: 1.6;
}

/* 下一步 */
.page-about .about-next__grid {
  display: grid;
  gap: 14px;
}

.page-about .about-next__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 22px 30px;
  border-radius: var(--r-lg);
  background: var(--rice);
  border: 1px solid var(--line-soft);
  color: var(--ink);
  text-decoration: none;
  transition: transform 0.24s var(--ease), box-shadow 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-about .about-next__card:hover,
.page-about .about-next__card:focus-visible {
  transform: translateY(-4px);
  box-shadow: var(--shadow-float);
  border-color: var(--clay);
}

.page-about .about-next__label {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--jade);
}

.page-about .about-next__card strong {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.06rem;
  line-height: 1.42;
}

.page-about .about-next__arrow {
  position: absolute;
  right: 22px;
  bottom: 18px;
  font-family: var(--font-num);
  font-size: 1.2rem;
  color: var(--clay);
}

/* 响应式 */
@media (min-width: 640px) {
  .page-about .about-standard__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-about .about-history__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 32px;
    align-items: start;
  }

  .page-about .about-history__figure {
    grid-column: 1 / span 4;
    position: sticky;
    top: 108px;
  }

  .page-about .about-history__main {
    grid-column: 6 / span 7;
  }

  .page-about .about-node {
    display: flex;
    align-items: flex-start;
    gap: 28px;
    padding: 28px 0 32px;
  }

  .page-about .about-node__year {
    flex: 0 0 148px;
    margin-bottom: 0;
  }

  .page-about .about-node:nth-child(even) .about-node__year {
    order: 2;
    text-align: right;
  }

  .page-about .about-node__body {
    flex: 1 1 auto;
    min-width: 0;
  }

  .page-about .about-team__body {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 32px;
    align-items: start;
  }

  .page-about .about-team__figure {
    grid-column: 1 / span 5;
  }

  .page-about .about-team__list {
    grid-column: 7 / span 6;
  }

  .page-about .about-rules {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-network__body {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: 32px;
  }

  .page-about .about-network__side {
    grid-column: 1 / span 7;
  }

  .page-about .about-network__figure {
    grid-column: 9 / span 4;
  }

  .page-about .about-visit__panel {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    column-gap: 48px;
  }

  .page-about .about-visit__facts {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-cities__item,
  .page-about .about-next__card {
    transition: none;
  }

  .page-about .about-cities__item:hover,
  .page-about .about-next__card:hover {
    transform: none;
  }
}