.page-about {
  --ab-gap-lg: clamp(48px, 7vw, 96px);
  --ab-gap-md: clamp(28px, 4vw, 52px);
  --ab-gap-sm: clamp(16px, 2.4vw, 28px);
}

/* ============ 首屏 ============ */
.page-about .ab-hero {
  padding: clamp(36px, 5vw, 64px) 0 clamp(24px, 3.5vw, 40px);
  background:
    radial-gradient(120% 80% at 85% 0%, rgba(192, 138, 62, 0.14), transparent 58%),
    radial-gradient(90% 70% at 0% 100%, rgba(63, 174, 140, 0.10), transparent 60%),
    var(--hb-cream);
  border-bottom: 1px solid var(--hb-line);
}

.page-about .ab-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ab-gap-md);
  align-items: start;
  margin-top: clamp(20px, 3vw, 34px);
}

.page-about .ab-hero__title {
  font-size: clamp(30px, 5.4vw, 52px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--hb-deep);
  margin: 10px 0 18px;
  max-width: 20ch;
}

.page-about .ab-hero .hb-lede {
  max-width: 52ch;
}

.page-about .ab-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: var(--ab-gap-sm);
}

.page-about .ab-hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--hb-line);
  border: 1px solid var(--hb-line);
  border-radius: var(--hb-radius-lg);
  overflow: hidden;
}

.page-about .ab-stat {
  background: var(--hb-white);
  padding: 20px 22px;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 12px;
  row-gap: 4px;
  align-items: baseline;
}

.page-about .ab-stat__num {
  grid-row: 1 / 2;
  font-size: clamp(34px, 5vw, 46px);
  font-weight: 700;
  line-height: 1;
  color: var(--hb-brass);
  letter-spacing: 0.01em;
}

.page-about .ab-stat__unit {
  grid-row: 1 / 2;
  font-size: 15px;
  font-weight: 600;
  color: var(--hb-deep);
}

.page-about .ab-stat__desc {
  grid-column: 1 / -1;
  grid-row: 2 / 3;
  font-size: 13px;
  line-height: 1.65;
  color: var(--hb-stone);
}

.page-about .ab-index {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--hb-line);
}

.page-about .ab-index li {
  border-bottom: 1px solid var(--hb-line-soft);
}

.page-about .ab-index a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 4px;
  font-size: 15px;
  color: var(--hb-text);
  text-decoration: none;
  transition: color 180ms var(--hb-ease), padding-left 180ms var(--hb-ease);
}

.page-about .ab-index a:hover,
.page-about .ab-index a:focus-visible {
  color: var(--hb-brass);
  padding-left: 12px;
}

.page-about .ab-index .hb-mono {
  color: var(--hb-brass);
  font-size: 12px;
  letter-spacing: 0.14em;
}

/* ============ 时间线 ============ */
.page-about .ab-timeline {
  background: var(--hb-cream);
}

.page-about .ab-tl {
  list-style: none;
  margin: clamp(32px, 5vw, 58px) 0 0;
  padding: 0;
  position: relative;
}

.page-about .ab-tl::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 7px;
  width: 2px;
  background: linear-gradient(180deg, var(--hb-brass-soft), var(--hb-brass) 40%, var(--hb-deep));
  border-radius: 2px;
}

.page-about .ab-tl__item {
  position: relative;
  padding-left: 40px;
  margin-bottom: var(--ab-gap-md);
}

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

.page-about .ab-tl__marker {
  position: absolute;
  left: 0;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--hb-cream);
  border: 2px solid var(--hb-mist);
}

.page-about .ab-tl__marker--now {
  background: var(--hb-brass);
  border-color: var(--hb-brass);
  box-shadow: 0 0 0 5px rgba(192, 138, 62, 0.18);
}

.page-about .ab-tl__body {
  padding: 22px 24px 24px;
}

.page-about .ab-tl__stage {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--hb-brass);
  margin: 0 0 8px;
}

.page-about .ab-tl__body h3 {
  font-size: clamp(19px, 2.5vw, 23px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--hb-deep);
  margin: 0 0 10px;
}

.page-about .ab-tl__body p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--hb-text);
  margin: 0;
}

/* 通栏图 */
.page-about .ab-band {
  margin: var(--ab-gap-lg) 0 0;
}

.page-about .ab-band--map {
  margin-top: var(--ab-gap-md);
}

.page-about .ab-band .hb-media {
  border-radius: var(--hb-radius-lg);
}

/* ============ 认证体系 ============ */
.page-about .ab-credential {
  color: var(--hb-cream);
}

.page-about .ab-credential .hb-eyebrow {
  color: var(--hb-brass-soft);
}

.page-about .ab-credential h2 {
  color: var(--hb-white);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 900;
  line-height: 1.2;
  margin: 10px 0 16px;
}

.page-about .ab-credential .hb-lede {
  color: rgba(245, 241, 232, 0.82);
}

.page-about .ab-credential__head p:not(.hb-eyebrow):not(.hb-lede) {
  color: rgba(245, 241, 232, 0.72);
  font-size: 16px;
  line-height: 1.8;
  margin-top: 14px;
}

.page-about .ab-credential__media .hb-media {
  border-color: rgba(227, 196, 140, 0.35);
}

.page-about .ab-credential__media .hb-media__cap {
  color: rgba(245, 241, 232, 0.6);
}

.page-about .ab-steps {
  list-style: none;
  margin: var(--ab-gap-lg) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .ab-step {
  background: rgba(245, 241, 232, 0.06);
  border: 1px solid rgba(227, 196, 140, 0.28);
  border-radius: var(--hb-radius-md);
  padding: 18px 20px 20px;
  transition: background 180ms var(--hb-ease), border-color 180ms var(--hb-ease), transform 180ms var(--hb-ease);
}

.page-about .ab-step:hover,
.page-about .ab-step:focus-visible {
  background: rgba(192, 138, 62, 0.17);
  border-color: var(--hb-brass);
  transform: translateY(-3px);
  outline: none;
}

.page-about .ab-step__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--hb-brass);
  margin-bottom: 10px;
}

.page-about .ab-step h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--hb-white);
  margin: 0 0 8px;
}

.page-about .ab-step p {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(245, 241, 232, 0.78);
  margin: 0;
}

.page-about .ab-step__meta {
  margin-top: 12px !important;
  padding-top: 10px;
  border-top: 1px dashed rgba(227, 196, 140, 0.3);
  font-size: 12px !important;
  color: var(--hb-brass-soft) !important;
}

.page-about .ab-credential__foot {
  margin-top: var(--ab-gap-sm);
  font-size: 15px;
  color: rgba(245, 241, 232, 0.72);
}

.page-about .ab-credential__foot .hb-link {
  color: var(--hb-brass-soft);
}

/* ============ 区域带 ============ */
.page-about .ab-regions {
  background: var(--hb-cream);
}

.page-about .ab-regionmap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: clamp(28px, 4vw, 46px) 0 0;
}

.page-about .ab-band-block {
  appearance: none;
  text-align: left;
  font: inherit;
  cursor: pointer;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto auto;
  gap: 2px 12px;
  padding: 18px 20px 20px;
  border: 1px solid var(--hb-line);
  border-radius: var(--hb-radius-md);
  background: var(--hb-white);
  transition: border-color 180ms var(--hb-ease), background 180ms var(--hb-ease), box-shadow 180ms var(--hb-ease);
}

.page-about .ab-band-block__no {
  grid-column: 1 / 2;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--hb-stone);
}

.page-about .ab-band-block__name {
  grid-column: 1 / 2;
  font-size: 16px;
  font-weight: 700;
  color: var(--hb-deep);
}

.page-about .ab-band-block__count {
  grid-column: 2 / 3;
  grid-row: 1 / 3;
  align-self: center;
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--hb-deep);
}

.page-about .ab-band-block__unit {
  grid-column: 1 / 2;
  font-size: 12px;
  color: var(--hb-stone);
}

.page-about .ab-band-block:hover,
.page-about .ab-band-block:focus-visible,
.page-about .ab-band-block[data-open] {
  border-color: var(--hb-brass);
  box-shadow: inset 3px 0 0 0 var(--hb-brass);
  outline: none;
}

.page-about .ab-band-block--west:hover .ab-band-block__count,
.page-about .ab-band-block--west[data-open] .ab-band-block__count { color: var(--hb-brass); }
.page-about .ab-band-block--east:hover .ab-band-block__count { color: var(--hb-deep); }
.page-about .ab-band-block--south:hover .ab-band-block__count { color: var(--hb-coral); }
.page-about .ab-band-block--mid:hover .ab-band-block__count { color: var(--hb-mint); }

.page-about .ab-regions__note {
  margin-top: var(--ab-gap-md);
  align-items: start;
}

.page-about .ab-regions__aside {
  padding: 22px 22px 24px;
}

.page-about .ab-regions__steps {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  counter-reset: rstep;
}

.page-about .ab-regions__steps li {
  counter-increment: rstep;
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--hb-text);
}

.page-about .ab-regions__steps li::before {
  content: counter(rstep);
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid var(--hb-brass);
  color: var(--hb-brass);
  font-family: var(--hb-font-mono);
  font-size: 11px;
  line-height: 20px;
  text-align: center;
}

.page-about .ab-regions__text h3 {
  font-size: clamp(20px, 2.8vw, 26px);
  font-weight: 800;
  color: var(--hb-deep);
  margin: 0 0 12px;
  line-height: 1.32;
}

.page-about .ab-regions__text p {
  font-size: 16px;
  line-height: 1.82;
  color: var(--hb-text);
  margin: 0 0 14px;
}

/* ============ 计价与响应 ============ */
.page-about .ab-pricing {
  color: var(--hb-cream);
}

.page-about .ab-pricing .hb-eyebrow {
  color: var(--hb-brass-soft);
}

.page-about .ab-pricing__head h2 {
  color: var(--hb-white);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 900;
  line-height: 1.2;
  margin: 10px 0 16px;
}

.page-about .ab-pricing__head .hb-lede {
  color: rgba(245, 241, 232, 0.8);
}

.page-about .ab-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ab-gap-md);
  margin-top: var(--ab-gap-lg);
}

.page-about .ab-split__title {
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--hb-brass-soft);
  font-weight: 700;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(227, 196, 140, 0.28);
}

.page-about .ab-price-card {
  padding: 20px 20px 22px;
  margin-bottom: 12px;
  border-color: rgba(227, 196, 140, 0.25);
}

.page-about .ab-price-card p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 241, 232, 0.82);
}

.page-about .ab-split__foot {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(245, 241, 232, 0.66);
  margin: 6px 0 0;
}

.page-about .ab-split__foot .hb-link {
  color: var(--hb-brass-soft);
}

.page-about .ab-response-list {
  display: grid;
  gap: 10px;
}

.page-about .ab-response {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  column-gap: 14px;
  row-gap: 4px;
  align-items: baseline;
  padding: 16px 18px;
  border-radius: var(--hb-radius-md);
  background: rgba(245, 241, 232, 0.06);
  border-left: 3px solid var(--hb-mist);
}

.page-about .ab-response--a { border-left-color: var(--hb-mint); }
.page-about .ab-response--b { border-left-color: var(--hb-brass); }
.page-about .ab-response--c { border-left-color: var(--hb-coral); }

.page-about .ab-response__code {
  grid-row: 1 / 2;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--hb-brass-soft);
}

.page-about .ab-response__time {
  grid-row: 1 / 2;
  justify-self: end;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--hb-white);
}

.page-about .ab-response__txt {
  grid-column: 1 / -1;
  grid-row: 2 / 3;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.72);
}

.page-about .ab-pricing__loyalty {
  margin-top: var(--ab-gap-lg);
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid rgba(227, 196, 140, 0.3);
  border-radius: var(--hb-radius-lg);
  background: linear-gradient(135deg, rgba(192, 138, 62, 0.18), rgba(63, 174, 140, 0.10));
}

.page-about .ab-pricing__loyalty p:last-child {
  margin: 10px 0 0;
  font-size: 16px;
  line-height: 1.82;
  color: rgba(245, 241, 232, 0.85);
  max-width: 62ch;
}

.page-about .ab-pricing__loyalty .hb-link {
  color: var(--hb-brass-soft);
}

/* ============ 复盘与改进 ============ */
.page-about .ab-review {
  background: var(--hb-cream);
}

.page-about .ab-review__grid {
  margin-top: clamp(28px, 4vw, 46px);
  align-items: start;
}

.page-about .ab-review__card {
  padding: 22px 22px 24px;
}

.page-about .ab-review__card h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--hb-deep);
  margin: 0 0 10px;
  line-height: 1.4;
}

.page-about .ab-review__card p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--hb-text);
  margin: 0;
}

.page-about .ab-quote {
  margin: var(--ab-gap-lg) 0;
  padding: clamp(24px, 3.4vw, 40px);
  background: var(--hb-clay);
  border-radius: var(--hb-radius-lg);
  position: relative;
  overflow: hidden;
}

.page-about .ab-quote::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(245, 241, 232, 0.12);
}

.page-about .ab-quote p {
  margin: 0;
  position: relative;
  z-index: 1;
  font-size: clamp(18px, 2.7vw, 25px);
  font-weight: 700;
  line-height: 1.6;
  color: var(--hb-white);
  max-width: 40ch;
}

.page-about .ab-next {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ab-gap-sm);
  padding-top: var(--ab-gap-sm);
  border-top: 1px solid var(--hb-line);
}

.page-about .ab-next__text h3 {
  font-size: clamp(20px, 2.8vw, 26px);
  font-weight: 800;
  color: var(--hb-deep);
  margin: 0 0 10px;
  line-height: 1.35;
}

.page-about .ab-next__text p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--hb-text);
  margin: 0;
  max-width: 58ch;
}

.page-about .ab-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: flex-start;
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-about .ab-hero__stats {
    grid-template-columns: 1fr;
  }

  .page-about .ab-index {
    grid-template-columns: repeat(2, 1fr);
    gap: 0 26px;
  }

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

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

  .page-about .ab-next {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero__grid {
    grid-template-columns: 7fr 4fr;
    gap: clamp(32px, 5vw, 72px);
  }

  .page-about .ab-index {
    grid-template-columns: repeat(5, 1fr);
    gap: 0 22px;
  }

  .page-about .ab-index li {
    border-bottom: none;
    border-top: 2px solid var(--hb-line);
    transition: border-color 180ms var(--hb-ease);
  }

  .page-about .ab-index li:hover {
    border-top-color: var(--hb-brass);
  }

  .page-about .ab-index a {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 14px 0 6px;
  }

  .page-about .ab-index a:hover,
  .page-about .ab-index a:focus-visible {
    padding-left: 0;
  }

  .page-about .ab-steps {
    grid-template-columns: repeat(5, 1fr);
  }

  .page-about .ab-regionmap {
    grid-template-columns: 3fr 4fr 3fr 2fr;
    align-items: stretch;
  }

  .page-about .ab-band-block {
    min-height: 168px;
  }

  .page-about .ab-band-block:nth-child(2),
  .page-about .ab-band-block:nth-child(4) {
    margin-top: 22px;
  }

  .page-about .ab-split {
    grid-template-columns: 1fr 1fr;
    gap: clamp(32px, 5vw, 76px);
  }

  .page-about .ab-response {
    grid-template-columns: auto 1fr auto;
    grid-template-rows: auto auto;
  }

  .page-about .ab-response__time {
    grid-column: 3 / 4;
    justify-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-index a,
  .page-about .ab-step,
  .page-about .ab-band-block,
  .page-about .ab-index li {
    transition: none;
  }

  .page-about .ab-step:hover,
  .page-about .ab-step:focus-visible {
    transform: none;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>