.page-about {
  --about-pad: clamp(18px, 4vw, 44px);
  --about-gap: clamp(20px, 3vw, 36px);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(84px, 12vw, 128px) 0 clamp(44px, 6vw, 68px);
  background: var(--indigo-900);
  color: var(--paper);
  border-bottom: 3px solid var(--ink);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(115% 85% at 84% 6%, rgba(217, 162, 75, 0.22), transparent 58%),
    repeating-linear-gradient(90deg, rgba(44, 64, 102, 0.45) 0 1px, transparent 1px 92px);
  clip-path: polygon(0 0, 100% 0, 100% 74%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(26px, 4vw, 48px);
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
}

.page-about .breadcrumb__link {
  color: var(--gold-soft);
  text-decoration: none;
}

.page-about .breadcrumb__link:hover {
  color: var(--gold);
}

.page-about .breadcrumb__sep,
.page-about .breadcrumb__current {
  color: var(--mist);
}

.page-about .about-hero__slab {
  max-width: 44rem;
}

.page-about .about-hero .eyebrow {
  color: var(--gold);
  margin: 0 0 14px;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 6.2vw, 4.2rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(18px, 3vw, 26px);
  color: var(--paper);
}

.page-about .about-hero__lead {
  color: var(--gold-soft);
  font-size: clamp(0.98rem, 2.4vw, 1.08rem);
  line-height: 1.8;
  margin: 0;
  max-width: 38rem;
}

.page-about .about-hero__facts {
  list-style: none;
  margin: clamp(30px, 5vw, 50px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--indigo-700);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-hard);
}

.page-about .about-hero__fact {
  background: var(--indigo-800);
  padding: 16px 14px;
  display: grid;
  align-content: center;
  gap: 6px;
  min-height: 86px;
}

.page-about .about-hero__num {
  font-family: var(--font-mono);
  font-size: clamp(1.45rem, 4.4vw, 2rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-hero__label {
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--mist);
}

/* ---------- 长卷主体 ---------- */
.page-about .about-body {
  background: var(--paper);
  padding: clamp(32px, 5vw, 56px) 0 clamp(56px, 8vw, 96px);
}

.page-about .about-body__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.5vw, 48px);
  align-items: start;
}

.page-about .about-side {
  border-top: 3px solid var(--ink);
  padding-top: 14px;
}

.page-about .about-side__title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin: 0 0 10px;
}

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

.page-about .about-side__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid rgba(7, 11, 20, 0.14);
  color: var(--indigo-700);
  font-size: 0.88rem;
  line-height: 1.5;
  text-decoration: none;
  transition: color 140ms var(--ease);
}

.page-about .about-side__link:hover,
.page-about .about-side__link:focus-visible {
  color: var(--ink);
}

.page-about .about-side__num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--gold);
  flex: none;
}

.page-about .about-main {
  min-width: 0;
}

.page-about .about-ch {
  padding: clamp(28px, 4.5vw, 52px) 0;
  border-top: 3px solid var(--ink);
}

.page-about .about-ch:first-child {
  border-top: 3px solid var(--ink);
}

.page-about .about-ch--last {
  padding-bottom: clamp(16px, 3vw, 28px);
}

.page-about .about-ch__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-about .about-ch__num {
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 5vw, 2.8rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-about .about-ch__title {
  position: relative;
  margin: 0;
  padding-bottom: 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.28rem, 3.2vw, 1.95rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .about-ch__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 3px;
  background: var(--gold);
}

.page-about .about-lead {
  margin: 0 0 clamp(18px, 3vw, 26px);
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--indigo-700);
  max-width: 46rem;
}

.page-about .about-ch .prose p {
  margin: 0 0 1em;
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--indigo-800);
}

.page-about .about-ch .prose p:last-child {
  margin-bottom: 0;
}

/* ---------- 01 分栏 ---------- */
.page-about .about-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--about-gap);
  align-items: start;
}

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

.page-about .about-split__fig .figure__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-hard);
  background: linear-gradient(150deg, var(--indigo-800), var(--indigo-900));
}

.page-about .about-split__fig .figure__caption {
  display: block;
  margin-top: 10px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--indigo-700);
}

/* ---------- 02 双栏深色面板 ---------- */
.page-about .about-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.5vw, 38px);
}

.page-about .about-panel--dark {
  background: var(--indigo-800);
  color: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-hard);
  padding: clamp(20px, 3.5vw, 32px);
}

.page-about .about-panel__col {
  min-width: 0;
}

.page-about .about-panel__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.02rem, 2.6vw, 1.2rem);
  font-weight: 700;
  color: var(--gold-soft);
}

.page-about .about-panel__text {
  margin: 0 0 16px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-cities {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid rgba(246, 241, 231, 0.22);
}

.page-about .about-cities__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 4px;
  border-bottom: 1px solid rgba(246, 241, 231, 0.22);
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-about .about-cities__item::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: none;
  background: var(--gold);
}

.page-about .about-cities__item:nth-child(5n + 1)::before { background: var(--flag-blue); }
.page-about .about-cities__item:nth-child(5n + 2)::before { background: var(--flag-red); }
.page-about .about-cities__item:nth-child(5n + 3)::before { background: var(--flag-green); }
.page-about .about-cities__item:nth-child(5n + 4)::before { background: var(--flag-yellow); }
.page-about .about-cities__item:nth-child(5n + 5)::before { background: var(--gold); }

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

.page-about .about-ratio__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 2.2em;
  grid-template-areas:
    "name val"
    "track track";
  gap: 6px 10px;
  align-items: center;
}

.page-about .about-ratio__name {
  grid-area: name;
  font-size: 0.86rem;
  color: var(--paper);
}

.page-about .about-ratio__val {
  grid-area: val;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--gold);
}

.page-about .about-ratio__track {
  grid-area: track;
  height: 8px;
  background: rgba(246, 241, 231, 0.14);
}

.page-about .about-ratio__bar {
  display: block;
  height: 100%;
  width: var(--w, 50%);
  background: var(--gold);
}

.page-about .about-ratio__item--a { --w: 40%; }
.page-about .about-ratio__item--a .about-ratio__bar { background: var(--flag-blue); }
.page-about .about-ratio__item--b { --w: 50%; }
.page-about .about-ratio__item--b .about-ratio__bar { background: var(--gold); }
.page-about .about-ratio__item--c { --w: 10%; }
.page-about .about-ratio__item--c .about-ratio__bar { background: var(--flag-green); }

/* ---------- 03 团队 ---------- */
.page-about .about-team {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(12px, 2vw, 18px);
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-about .about-team__card {
  position: relative;
  background: var(--indigo-900);
  color: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: 6px 6px 0 rgba(7, 11, 20, 0.85);
  padding: 22px 18px 18px;
  transition: transform 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-about .about-team__card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: var(--gold);
}

.page-about .about-team__card--blue::before { background: var(--flag-blue); }
.page-about .about-team__card--red::before { background: var(--flag-red); }
.page-about .about-team__card--green::before { background: var(--flag-green); }
.page-about .about-team__card--yellow::before { background: var(--flag-yellow); }

.page-about .about-team__card:hover,
.page-about .about-team__card:focus-within {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 rgba(7, 11, 20, 0.9);
}

.page-about .about-team__role {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--paper);
}

.page-about .about-team__desc {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--gold-soft);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-about .about-team__more {
  max-height: 0;
  overflow: hidden;
  transition: max-height 220ms var(--ease);
}

.page-about .about-team__more p {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(246, 241, 231, 0.2);
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-team__card:hover .about-team__more,
.page-about .about-team__card:focus-within .about-team__more {
  max-height: 240px;
}

.page-about .about-subtitle {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1rem, 2.4vw, 1.15rem);
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-flow {
  list-style: none;
  margin: 0 0 clamp(24px, 4vw, 36px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-about .about-flow__step {
  position: relative;
  padding-left: 26px;
}

.page-about .about-flow__step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 3px solid var(--gold);
  background: var(--paper);
}

.page-about .about-flow__step::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 18px;
  bottom: -18px;
  width: 2px;
  background: rgba(7, 11, 20, 0.18);
}

.page-about .about-flow__step:last-child::after {
  display: none;
}

.page-about .about-flow__name {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--indigo-700);
  margin-bottom: 4px;
}

.page-about .about-flow__note {
  display: block;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--indigo-800);
}

.page-about .about-ch__widefig {
  margin: clamp(8px, 2vw, 16px) 0 0;
}

.page-about .about-ch__widefig .figure__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-hard);
  background: linear-gradient(160deg, var(--indigo-800), var(--indigo-900));
}

.page-about .about-ch__widefig .figure__caption {
  display: block;
  margin-top: 10px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--indigo-700);
}

/* ---------- 04 服务事项 ---------- */
.page-about .about-services {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  border-top: 3px solid var(--ink);
}

.page-about .about-services__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: clamp(16px, 2.6vw, 24px) 0;
  border-bottom: 1px solid rgba(7, 11, 20, 0.16);
}

.page-about .about-services__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--gold);
}

.page-about .about-services__body {
  min-width: 0;
}

.page-about .about-services__name {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(0.98rem, 2.4vw, 1.1rem);
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-services__body p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--indigo-800);
}

/* ---------- 05 栏目 ---------- */
.page-about .about-cols {
  list-style: none;
  margin: 0 0 clamp(24px, 4vw, 36px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(12px, 2vw, 18px);
}

.page-about .about-cols__item {
  padding: 16px 0 16px 16px;
  border-left: 3px solid var(--indigo-700);
  background: linear-gradient(90deg, rgba(26, 40, 68, 0.06), transparent 72%);
}

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

.page-about .about-cols__item p {
  margin: 8px 0 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--indigo-800);
}

/* ---------- 06 三件日常事 ---------- */
.page-about .about-props {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.6vw, 24px);
  border-top: 3px solid var(--ink);
  padding-top: clamp(18px, 3vw, 28px);
}

.page-about .about-props__item {
  padding-left: 14px;
  border-left: 3px solid var(--gold);
}

.page-about .about-props__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(0.98rem, 2.4vw, 1.1rem);
  font-weight: 700;
  color: var(--ink);
}

.page-about .about-props__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--indigo-800);
}

/* ---------- 07 对接 ---------- */
.page-about .about-cta {
  background: var(--indigo-900);
  color: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-hard);
  padding: clamp(22px, 4vw, 36px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 30px);
}

.page-about .about-cta__text p {
  margin: 0 0 12px;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--gold-soft);
}

.page-about .about-cta__text p:last-child {
  margin-bottom: 0;
  color: var(--mist);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-start;
}

.page-about .about-cta__actions .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 760px) {
  .page-about .about-panel {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-about .about-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-about .about-flow__step {
    padding-left: 0;
    padding-top: 30px;
  }

  .page-about .about-flow__step::before {
    top: 0;
    left: 0;
  }

  .page-about .about-flow__step::after {
    left: 16px;
    top: 7px;
    bottom: auto;
    width: calc(100% + 10px);
    height: 2px;
  }

  .page-about .about-services {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(20px, 3vw, 36px);
  }

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

  .page-about .about-cta {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-about .about-body__inner {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
  }

  .page-about .about-side {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 1.38fr) minmax(0, 0.62fr);
  }

  .page-about .about-team {
    grid-template-columns: 1.2fr 1fr 1.15fr 0.85fr;
  }

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

  .page-about .about-cols__item:first-child {
    grid-column: span 2;
  }
}

@media (hover: none) {
  .page-about .about-team__more {
    max-height: 260px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-team__card,
  .page-about .about-team__more,
  .page-about .about-side__link {
    transition: none;
  }
}