.page-about {
  --ab-rule: rgba(184, 194, 204, .28);
  --ab-gold-deep: #9A6A14;
  --ab-ink-soft: rgba(20, 32, 43, .74);
  --ab-ink-faint: rgba(20, 32, 43, .58);
  background: var(--hh-ink);
  color: var(--hh-on-dark);
  font-family: var(--hh-sans);
  overflow-x: hidden;
}

.page-about h1,
.page-about h2,
.page-about h3,
.page-about p,
.page-about ul,
.page-about ol,
.page-about dl,
.page-about dd,
.page-about figure,
.page-about figcaption {
  margin: 0;
}

.page-about ul,
.page-about ol {
  padding: 0;
  list-style: none;
}

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

.page-about .hh-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .78rem 1.35rem;
  border: 2px solid var(--hh-gold);
  background: transparent;
  color: var(--hh-gold-bright);
  font-family: var(--hh-sans);
  font-size: .9375rem;
  font-weight: 700;
  letter-spacing: .02em;
  text-decoration: none;
  transition: background .22s var(--hh-ease), color .22s var(--hh-ease), border-color .22s var(--hh-ease);
}

.page-about .hh-btn--gold {
  background: var(--hh-gold);
  border-color: var(--hh-gold);
  color: var(--hh-ink);
}

.page-about .hh-btn--gold:hover,
.page-about .hh-btn--gold:focus-visible {
  background: var(--hh-gold-bright);
  border-color: var(--hh-gold-bright);
}

.page-about .hh-btn--ghost:hover,
.page-about .hh-btn--ghost:focus-visible {
  background: rgba(214, 168, 75, .14);
  color: var(--hh-gold-bright);
}

.page-about .hh-btn:focus-visible {
  outline: 3px solid var(--hh-cyan);
  outline-offset: 3px;
}

/* ---------- 面包屑 ---------- */
.ab-crumb {
  background: var(--hh-ink);
  padding-block: 1.15rem .35rem;
}

.ab-crumb__nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .55rem;
  font-family: var(--hh-mono);
  font-size: .8125rem;
  letter-spacing: .08em;
  color: var(--hh-on-dark-dim);
}

.ab-crumb__link {
  color: var(--hh-gold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.ab-crumb__link:hover,
.ab-crumb__link:focus-visible {
  color: var(--hh-gold-bright);
  border-bottom-color: currentColor;
}

.ab-crumb__sep {
  color: rgba(184, 194, 204, .5);
}

.ab-crumb__current {
  color: var(--hh-on-dark);
}

/* ---------- 首屏 ---------- */
.ab-hero {
  background:
    radial-gradient(120% 90% at 82% 8%, rgba(47, 209, 197, .10), transparent 58%),
    radial-gradient(90% 80% at 6% 92%, rgba(214, 168, 75, .13), transparent 62%),
    var(--hh-ink);
  padding-block: clamp(1.5rem, 4vw, 2.75rem) clamp(3rem, 7vw, 5.25rem);
}

.ab-hero__inner {
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: center;
}

.ab-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--hh-mono);
  font-size: .8125rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--hh-gold);
}

.ab-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  background: var(--hh-amber);
  box-shadow: 0 0 0 4px rgba(232, 121, 46, .18);
  animation: ab-pulse 3.6s ease-in-out infinite;
}

@keyframes ab-pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(232, 121, 46, .14); }
  50% { box-shadow: 0 0 0 8px rgba(232, 121, 46, .04); }
}

.ab-hero__title {
  margin-top: 1rem;
  font-family: var(--hh-serif);
  font-weight: 900;
  font-size: clamp(2rem, 5.4vw, 3.5rem);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--hh-paper);
}

.ab-hero__lede {
  margin-top: 1.25rem;
  max-width: 44ch;
  font-size: clamp(1rem, 1.3vw, 1.0625rem);
  line-height: 1.85;
  color: var(--hh-on-dark-dim);
}

.ab-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.85rem;
}

.ab-marks {
  display: grid;
  gap: 1px;
  margin-top: 2.25rem;
  border: 1px solid var(--ab-rule);
  background: var(--ab-rule);
}

.ab-mark {
  display: grid;
  gap: .3rem;
  align-content: start;
  padding: .95rem 1.1rem;
  background: var(--hh-ink);
}

.ab-mark__k {
  font-family: var(--hh-mono);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--hh-gold-bright);
}

.ab-mark__v {
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--hh-on-dark-dim);
}

.ab-hero__figure {
  position: relative;
  border: 3px solid var(--hh-gold);
  background: var(--hh-midnight);
  box-shadow: var(--hh-shadow-hard);
}

.ab-hero__figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.ab-hero__figcap {
  padding: .8rem 1rem;
  border-top: 1px solid var(--ab-rule);
  font-family: var(--hh-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--hh-on-dark-dim);
}

/* ---------- 通用区块 ---------- */
.ab-section {
  padding-block: clamp(2.75rem, 6.5vw, 5rem);
  scroll-margin-top: 5.5rem;
}

.ab-section--paper {
  background: var(--hh-paper);
  color: var(--hh-text);
}

.ab-section--silver {
  background: var(--hh-silver);
  color: var(--hh-text);
}

.ab-section--ink {
  background: var(--hh-ink);
  color: var(--hh-on-dark);
}

.ab-section--midnight {
  background: var(--hh-midnight);
  color: var(--hh-on-dark);
}

.ab-head {
  display: grid;
  gap: .9rem;
  max-width: 48rem;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.ab-eyebrow--ink {
  font-family: var(--hh-mono);
  font-size: .8125rem;
  letter-spacing: .18em;
  color: var(--ab-gold-deep);
  font-weight: 700;
}

.ab-head__title {
  font-family: var(--hh-serif);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  line-height: 1.26;
  letter-spacing: -.005em;
}

.ab-head__lede {
  font-size: clamp(.9375rem, 1.2vw, 1rem);
  line-height: 1.85;
}

.ab-section--paper .ab-head__title,
.ab-section--silver .ab-head__title {
  color: var(--hh-text);
}

.ab-section--paper .ab-head__lede,
.ab-section--silver .ab-head__lede {
  color: var(--ab-ink-soft);
}

.ab-section--ink .ab-head__title,
.ab-section--midnight .ab-head__title {
  color: var(--hh-paper);
}

.ab-section--ink .ab-head__lede,
.ab-section--midnight .ab-head__lede {
  color: var(--hh-on-dark-dim);
}

/* ---------- 服务对象 ---------- */
.ab-serve {
  display: grid;
  gap: 1px;
  border: 2px solid var(--hh-text);
  background: var(--hh-line);
  box-shadow: 6px 6px 0 rgba(20, 32, 43, .14);
}

.ab-serve__item {
  display: grid;
  gap: .55rem;
  align-content: start;
  padding: 1.45rem 1.25rem;
  background: var(--hh-silver);
}

.ab-serve__num {
  font-family: var(--hh-mono);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--ab-gold-deep);
}

.ab-serve__title {
  font-family: var(--hh-serif);
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--hh-text);
}

.ab-serve__text {
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ab-ink-soft);
}

/* ---------- 索引目录 ---------- */
.ab-catalog {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
  align-items: start;
}

.ab-catalog__figure {
  border: 2px solid var(--hh-text);
  background: var(--hh-paper);
  box-shadow: 6px 6px 0 rgba(20, 32, 43, .16);
}

.ab-catalog__figure img {
  width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.ab-catalog__figcap {
  padding: .8rem 1rem;
  border-top: 1px solid rgba(20, 32, 43, .16);
  font-family: var(--hh-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  color: var(--ab-ink-faint);
}

.ab-dims {
  display: grid;
  gap: 1px;
  background: rgba(20, 32, 43, .18);
  border: 2px solid var(--hh-text);
}

.ab-dim {
  display: grid;
  gap: .45rem;
  align-content: start;
  padding: 1.2rem 1.15rem;
  background: var(--hh-paper);
}

.ab-dim__title {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--hh-serif);
  font-size: 1.0625rem;
  font-weight: 800;
  color: var(--hh-text);
}

.ab-dim__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.65rem;
  height: 1.65rem;
  flex: 0 0 auto;
  border: 2px solid var(--hh-gold);
  font-family: var(--hh-mono);
  font-size: .75rem;
  font-weight: 700;
  color: var(--ab-gold-deep);
}

.ab-dim__text {
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ab-ink-soft);
}

/* ---------- 发布节奏 ---------- */
.ab-cadence {
  display: grid;
  gap: clamp(2rem, 4.5vw, 3.25rem);
  align-items: start;
}

.ab-cadence__eyebrow {
  font-family: var(--hh-mono);
  font-size: .8125rem;
  letter-spacing: .18em;
  color: var(--hh-gold);
  font-weight: 700;
}

.ab-cadence__title {
  margin-top: .9rem;
  font-family: var(--hh-serif);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  line-height: 1.26;
  color: var(--hh-paper);
}

.ab-cadence__lede {
  margin-top: 1rem;
  font-size: clamp(.9375rem, 1.2vw, 1rem);
  line-height: 1.85;
  color: var(--hh-on-dark-dim);
  max-width: 46ch;
}

.ab-cadence__list {
  display: grid;
  gap: .85rem;
  margin-top: 1.6rem;
}

.ab-cadence__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .8rem;
  align-items: start;
  padding-bottom: .85rem;
  border-bottom: 1px solid var(--ab-rule);
}

.ab-cadence__tag {
  display: inline-block;
  padding: .18rem .5rem;
  font-family: var(--hh-mono);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  border: 1px solid currentColor;
  white-space: nowrap;
}

.ab-cadence__tag--new { color: var(--hh-cyan); }
.ab-cadence__tag--edit { color: var(--hh-amber); }
.ab-cadence__tag--off { color: var(--hh-on-dark-dim); }

.ab-cadence__text {
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--hh-on-dark-dim);
}

.ab-cadence__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.75rem;
}

.ab-dial {
  position: relative;
  min-height: 16rem;
  border: 2px solid var(--ab-rule);
  background:
    linear-gradient(180deg, rgba(214, 168, 75, .10), transparent 65%),
    var(--hh-midnight);
  overflow: hidden;
}

.ab-dial__ticks {
  position: absolute;
  inset: auto 0 0 0;
  height: 62%;
  background: repeating-linear-gradient(90deg, rgba(214, 168, 75, .5) 0 1px, transparent 1px 26px);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 55%);
  mask-image: linear-gradient(180deg, transparent, #000 55%);
}

.ab-dial__rail {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 38%;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(214, 168, 75, .75), transparent);
}

.ab-dial__mark {
  position: absolute;
  left: 50%;
  bottom: 38%;
  transform: translate(-50%, 50%);
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .5rem .85rem;
  border: 2px solid var(--hh-gold);
  background: var(--hh-ink);
  box-shadow: 4px 4px 0 rgba(214, 168, 75, .22);
}

.ab-dial__pulse {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  background: var(--hh-amber);
  animation: ab-pulse 3.6s ease-in-out infinite;
}

.ab-dial__label {
  font-family: var(--hh-mono);
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--hh-gold-bright);
  white-space: nowrap;
}

.ab-dial__note {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-family: var(--hh-mono);
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--hh-on-dark-dim);
}

/* ---------- 团队 ---------- */
.ab-team {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
  align-items: start;
}

.ab-team__figure {
  border: 2px solid var(--hh-text);
  background: var(--hh-silver);
  box-shadow: 6px 6px 0 rgba(20, 32, 43, .16);
}

.ab-team__figure img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.ab-team__figcap {
  padding: .8rem 1rem;
  border-top: 1px solid rgba(20, 32, 43, .16);
  font-family: var(--hh-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  color: var(--ab-ink-faint);
}

.ab-team__steps {
  display: grid;
  gap: 1.1rem;
}

.ab-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .9rem;
  align-items: start;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid rgba(20, 32, 43, .14);
}

.ab-step:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.ab-step__idx {
  font-family: var(--hh-mono);
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--ab-gold-deep);
  padding-top: .2rem;
}

.ab-step__title {
  font-family: var(--hh-serif);
  font-size: 1.0625rem;
  font-weight: 800;
  color: var(--hh-text);
}

.ab-step__text {
  margin-top: .4rem;
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ab-ink-soft);
}

/* ---------- 合作生态 ---------- */
.ab-eco__eyebrow {
  font-family: var(--hh-mono);
  font-size: .8125rem;
  letter-spacing: .18em;
  color: var(--hh-gold);
  font-weight: 700;
}

.ab-eco {
  display: grid;
  gap: 1px;
  background: var(--ab-rule);
  border: 2px solid var(--ab-rule);
}

.ab-eco__stat {
  display: grid;
  gap: .2rem;
  align-content: start;
  padding: 1.4rem 1.2rem;
  background: var(--hh-ink);
}

.ab-eco__num {
  font-family: var(--hh-mono);
  font-size: clamp(2rem, 5vw, 2.85rem);
  font-weight: 900;
  letter-spacing: .06em;
  line-height: 1;
  color: var(--hh-gold-bright);
}

.ab-eco__unit {
  font-family: var(--hh-sans);
  font-size: .8125rem;
  letter-spacing: .16em;
  color: var(--hh-on-dark-dim);
}

.ab-eco__cap {
  margin-top: .65rem;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--hh-on-dark-dim);
}

.ab-eco__note {
  display: grid;
  gap: 1.25rem;
  align-items: center;
  margin-top: clamp(1.75rem, 4vw, 2.5rem);
  padding: 1.4rem 1.25rem;
  border-left: 3px solid var(--hh-gold);
  background: rgba(10, 26, 42, .55);
}

.ab-eco__note-text {
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--hh-on-dark-dim);
}

/* ---------- 运营阶段 ---------- */
.ab-phases {
  display: grid;
  gap: 1.5rem;
  position: relative;
  padding-left: 1.6rem;
}

.ab-phases::before {
  content: "";
  position: absolute;
  left: .3rem;
  top: .5rem;
  bottom: .5rem;
  width: 2px;
  background: linear-gradient(180deg, var(--hh-gold), rgba(214, 168, 75, .18));
}

.ab-phase {
  position: relative;
}

.ab-phase__node {
  position: absolute;
  left: -1.6rem;
  top: .45rem;
  width: .7rem;
  height: .7rem;
  margin-left: .05rem;
  background: var(--hh-ink);
  border: 2px solid var(--hh-gold);
}

.ab-phase__title {
  font-family: var(--hh-serif);
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--hh-text);
}

.ab-phase__text {
  margin-top: .45rem;
  max-width: 62ch;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--ab-ink-soft);
}

/* ---------- 收尾 ---------- */
.ab-cta {
  background:
    radial-gradient(100% 120% at 88% 0%, rgba(214, 168, 75, .14), transparent 60%),
    var(--hh-ink);
  padding-block: clamp(2.75rem, 6.5vw, 4.75rem);
  scroll-margin-top: 5.5rem;
}

.ab-cta__inner {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
  align-items: start;
}

.ab-cta__title {
  margin-top: .9rem;
  font-family: var(--hh-serif);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  line-height: 1.26;
  color: var(--hh-paper);
}

.ab-cta__text {
  margin-top: 1rem;
  max-width: 46ch;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--hh-on-dark-dim);
}

.ab-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.6rem;
}

.ab-cta__aside {
  border: 2px solid var(--ab-rule);
  background: var(--hh-midnight);
  padding: 1.2rem 1.15rem;
}

.ab-cta__aside-k {
  font-family: var(--hh-mono);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--hh-gold);
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--ab-rule);
}

.ab-cta__links {
  display: grid;
  gap: .1rem;
  margin-top: .75rem;
}

.ab-cta__links a {
  display: block;
  padding: .6rem .1rem;
  font-size: .9375rem;
  color: var(--hh-on-dark);
  text-decoration: none;
  border-bottom: 1px solid var(--ab-rule);
  transition: color .2s var(--hh-ease), padding-left .2s var(--hh-ease);
}

.ab-cta__links li:last-child a {
  border-bottom: 0;
}

.ab-cta__links a:hover,
.ab-cta__links a:focus-visible {
  color: var(--hh-gold-bright);
  padding-left: .45rem;
}

.ab-cta__links a:focus-visible {
  outline: 2px solid var(--hh-cyan);
  outline-offset: 2px;
}

/* ---------- 显现 ---------- */
.page-about [data-reveal].is-in {
  animation: ab-rise .58s var(--hh-ease) both;
}

@keyframes ab-rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .ab-marks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 700px) {
  .ab-serve {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ab-eco {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .ab-eco__note {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 900px) {
  .ab-hero__inner {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  }

  .ab-cadence {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .ab-catalog {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  }

  .ab-catalog__figure {
    position: sticky;
    top: 6rem;
  }

  .ab-team {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  }

  .ab-cta__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
}

@media (min-width: 1080px) {
  .ab-serve {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }

  .page-about [data-reveal].is-in {
    animation: none;
    opacity: 1;
    transform: none;
  }
}
<<<END>>>