.page-about {
  background: var(--mist);
  color: var(--ink);
}

/* ---------- 面包屑与首屏 ---------- */
.page-about .breadcrumb {
  padding-top: 22px;
}

.page-about .about-hero {
  padding: clamp(28px, 5vw, 64px) 0 clamp(30px, 4vw, 56px);
}

.page-about .about-hero__kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clay);
}

.page-about .about-hero h1 {
  margin: 0 0 22px;
  max-width: 15em;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 5.2vw, 54px);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-about .about-hero__lead {
  margin: 0 0 26px;
  max-width: 60ch;
  font-family: var(--font-body);
  font-size: clamp(16px, 1.1vw, 18px);
  line-height: 1.9;
  color: rgba(33, 28, 22, 0.88);
}

.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 区块通用 ---------- */
.page-about .section {
  padding-block: clamp(44px, 6vw, 88px);
}

.page-about .section__head {
  margin-bottom: clamp(26px, 3.6vw, 46px);
}

.page-about .section__head .tag {
  display: inline-block;
  margin-bottom: 14px;
}

.page-about .section__title {
  margin: 0 0 14px;
  max-width: 22em;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.22;
  letter-spacing: -0.02em;
}

.page-about .section__lead {
  margin: 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: rgba(33, 28, 22, 0.84);
}

/* ---------- 年份时间轴 ---------- */
.page-about .about-years__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-about .years {
  position: relative;
  margin: 0;
  padding: 0 0 0 34px;
  list-style: none;
}

.page-about .years::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 10px;
  bottom: 26px;
  width: 3px;
  background: var(--ink);
}

.page-about .years__item {
  position: relative;
  margin-bottom: 30px;
}

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

.page-about .years__item::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 4px;
  width: 17px;
  height: 17px;
  box-sizing: border-box;
  background: var(--gold);
  border: 3px solid var(--ink);
  border-radius: 50%;
}

.page-about .years__year {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 10px;
  background: var(--deep);
  color: var(--mist);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-about .years__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(17px, 1.3vw, 20px);
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.page-about .years__text {
  margin: 0;
  max-width: 46ch;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(33, 28, 22, 0.82);
}

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

.page-about .about-years__figure .media__img,
.page-about .about-years__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: var(--line);
  box-shadow: var(--shadow-hard);
  object-fit: cover;
}

/* ---------- 城区覆盖 ---------- */
.page-about .about-cov {
  background-color: var(--sand);
  background-image:
    linear-gradient(rgba(33, 28, 22, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(33, 28, 22, 0.07) 1px, transparent 1px);
  background-size: 34px 34px;
  border-top: var(--line);
  border-bottom: var(--line);
}

.page-about .cov-board {
  border: var(--line);
  background: var(--mist);
  box-shadow: var(--shadow-hard);
}

.page-about .cov-board__total {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(24px, 3vw, 36px);
  background: var(--deep);
  color: var(--mist);
}

.page-about .cov-board__num {
  font-family: var(--font-mono);
  font-size: clamp(46px, 7vw, 76px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gold);
}

.page-about .cov-board__cap {
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-about .cov-board__split {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  color: rgba(246, 242, 233, 0.85);
}

.page-about .cov-board__split b {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--gold);
}

.page-about .cov-board__cols {
  display: grid;
  gap: 3px;
  background: var(--ink);
}

.page-about .cov-board__col {
  padding: clamp(22px, 3vw, 32px);
  background: var(--mist);
}

.page-about .cov-board__h {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--tea);
}

.page-about .chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-about .chip-list__item {
  padding: 5px 12px;
  border: 2px solid var(--ink);
  background: var(--mist);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
}

.page-about .chip-list__item--main {
  background: var(--tea);
  border-color: var(--tea);
  color: var(--mist);
}

.page-about .cov-board__note {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(33, 28, 22, 0.78);
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-about .team-grid__text .tag {
  display: inline-block;
  margin-bottom: 14px;
}

.page-about .team-grid__p {
  margin: 0 0 22px;
  max-width: 52ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: rgba(33, 28, 22, 0.85);
}

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

.page-about .train-list__item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 11px 14px;
  border: 2px solid var(--ink);
  background: var(--mist);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
}

.page-about .train-list__k {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--clay);
}

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

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: var(--line);
  box-shadow: var(--shadow-hard);
  object-fit: cover;
}

.page-about .num-wall {
  display: grid;
  gap: 3px;
  background: var(--ink);
  border: var(--line);
}

.page-about .num-wall__cell {
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--mist);
}

.page-about .num-wall__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--clay);
}

.page-about .num-wall__cap {
  display: block;
  margin-top: 8px;
  font-family: var(--font-head);
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.5;
  color: rgba(33, 28, 22, 0.82);
}

/* ---------- 服务流程 ---------- */
.page-about .flow {
  display: grid;
  gap: 3px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--ink);
  border: var(--line);
}

.page-about .flow__step {
  padding: clamp(22px, 2.8vw, 30px);
  background: var(--mist);
}

.page-about .flow__idx {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  letter-spacing: -0.02em;
}

.page-about .flow__t {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about .flow__d {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(33, 28, 22, 0.8);
}

/* ---------- 合作生态 ---------- */
.page-about .about-eco {
  background-color: var(--sand);
  background-image:
    linear-gradient(rgba(33, 28, 22, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(33, 28, 22, 0.06) 1px, transparent 1px);
  background-size: 34px 34px;
  border-top: var(--line);
  border-bottom: var(--line);
}

.page-about .eco-grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-about .eco-grid__map {
  border: var(--line);
  background: var(--mist);
  box-shadow: var(--shadow-hard);
  padding: clamp(12px, 2vw, 22px);
}

.page-about .eco-map {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .eco-map__link {
  stroke: var(--ink);
  stroke-width: 3;
  stroke-dasharray: 8 6;
}

.page-about .eco-map__core {
  fill: var(--deep);
  stroke: var(--ink);
  stroke-width: 3;
}

.page-about .eco-map__core-t {
  fill: var(--gold);
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 900;
  letter-spacing: 0.02em;
}

.page-about .eco-node__ring {
  fill: var(--mist);
  stroke: var(--ink);
  stroke-width: 3;
  transition: fill 200ms var(--ease), transform 200ms var(--ease);
  transform-box: fill-box;
  transform-origin: center;
}

.page-about .eco-node__num {
  fill: var(--ink);
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  pointer-events: none;
}

.page-about .eco-node__cap {
  fill: var(--ink);
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
}

.page-about .eco-node:hover .eco-node__ring,
.page-about .eco-node:focus-visible .eco-node__ring {
  fill: var(--gold);
}

.page-about .eco-node:focus-visible {
  outline: none;
}

.page-about .eco-grid__body {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
  align-content: start;
}

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

.page-about .about-eco__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: var(--line);
  box-shadow: var(--shadow-hard);
  object-fit: cover;
}

.page-about .eco-list {
  margin: 0;
  border: var(--line);
  background: var(--mist);
}

.page-about .eco-list__row {
  padding: 16px 18px;
  border-bottom: 2px solid var(--ink);
}

.page-about .eco-list__row:last-child {
  border-bottom: 0;
}

.page-about .eco-list__t {
  margin-bottom: 5px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 800;
  color: var(--tea);
}

.page-about .eco-list__d {
  margin: 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(33, 28, 22, 0.82);
}

/* ---------- 口碑 ---------- */
.page-about .about-honor {
  background: var(--deep);
  color: var(--mist);
}

.page-about .about-honor .tag {
  display: inline-block;
  margin-bottom: 14px;
}

.page-about .about-honor__title {
  margin: 0 0 14px;
  max-width: 20em;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-about .about-honor__lead {
  margin: 0;
  max-width: 58ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.9;
  color: rgba(246, 242, 233, 0.85);
}

.page-about .honor-wall {
  display: grid;
  gap: 3px;
  margin-top: clamp(26px, 4vw, 46px);
  background: var(--gold);
  border: 3px solid var(--mist);
}

.page-about .honor-wall__cell {
  padding: clamp(22px, 3vw, 32px);
  background: var(--deep);
}

.page-about .honor-wall__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(32px, 4.4vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-about .honor-wall__cap {
  display: block;
  margin-top: 10px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
  color: rgba(246, 242, 233, 0.88);
}

/* ---------- 下一步 ---------- */
.page-about .about-next__title {
  margin: 0 0 clamp(20px, 3vw, 32px);
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.page-about .next-links {
  display: grid;
  gap: 3px;
  background: var(--ink);
  border: var(--line);
}

.page-about .next-link {
  display: block;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--mist);
  color: var(--ink);
  text-decoration: none;
  transition: background 200ms var(--ease), transform 200ms var(--ease);
}

.page-about .next-link:hover,
.page-about .next-link:focus-visible {
  background: var(--sand);
  transform: translateX(4px);
}

.page-about .next-link__t {
  display: block;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-about .next-link__d {
  display: block;
  margin-top: 6px;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(33, 28, 22, 0.76);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .num-wall {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .honor-wall {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (min-width: 900px) {
  .page-about .about-years__grid {
    grid-template-columns: 1.25fr 1fr;
    align-items: start;
  }

  .page-about .about-years__figure {
    position: sticky;
    top: 28px;
  }

  .page-about .team-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-about .cov-board__cols {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about .eco-grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: start;
  }
}

@media (min-width: 1060px) {
  .page-about .num-wall {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .page-about .honor-wall {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .next-links {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .eco-node__ring,
  .page-about .next-link {
    transition: none;
  }

  .page-about .next-link:hover,
  .page-about .next-link:focus-visible {
    transform: none;
  }
}