.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 44px) 0 clamp(40px, 6vw, 76px);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -12%;
  width: min(760px, 92vw);
  height: min(760px, 92vw);
  background: radial-gradient(circle at 50% 50%, rgba(14, 143, 110, .22), rgba(6, 8, 10, 0) 62%);
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  right: -10%;
  width: 46%;
  background: repeating-linear-gradient(112deg, rgba(231, 199, 124, .06) 0 1px, transparent 1px 34px);
  transform: skewX(-8deg);
  pointer-events: none;
}

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

.page-about .about-hero .crumbs {
  margin-bottom: var(--space-5);
}

.page-about .about-declare {
  margin: var(--space-4) 0 var(--space-5);
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(38px, 7vw, 96px);
  line-height: 1.03;
  letter-spacing: -.03em;
  color: var(--ivory);
  max-width: 16em;
}

.page-about .about-declare-hi {
  display: block;
  background: linear-gradient(100deg, var(--gold) 8%, var(--gold-deep) 58%, var(--jade-hi) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-about .about-lede {
  max-width: 44em;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ivory);
  opacity: .86;
}

.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-sheet {
  padding: clamp(40px, 6vw, 80px) 0 clamp(56px, 8vw, 96px);
}

.page-about .about-sheet-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-about .about-side {
  align-self: start;
  min-width: 0;
}

.page-about .about-side-title {
  margin: 0 0 var(--space-3);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mist);
}

.page-about .about-side-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-side-list::-webkit-scrollbar {
  display: none;
}

.page-about .about-side-link {
  display: block;
  white-space: nowrap;
  padding: 7px 13px;
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.page-about .about-side-link:hover,
.page-about .about-side-link:focus-visible {
  color: var(--ivory);
  border-color: var(--line-hard);
  background: rgba(231, 199, 124, .07);
  outline: none;
}

.page-about .about-flow {
  display: flex;
  flex-direction: column;
  gap: clamp(48px, 7vw, 92px);
  min-width: 0;
}

.page-about .about-flow > section {
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-about .about-sec-head {
  max-width: 54ch;
}

.page-about .about-sec-head .section-title {
  margin: var(--space-3) 0 var(--space-4);
}

.page-about .about-sec-head .lede {
  margin: 0;
}

/* ---------- 品牌主张 ---------- */
.page-about .about-claim-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-about .about-claim-media .media__frame {
  border: 1px solid var(--line-gold);
  background: var(--ink-800);
}

.page-about .about-claim-media .media__caption {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-claim-text .section-title {
  margin: var(--space-3) 0 var(--space-4);
}

.page-about .about-claim-text .lede {
  margin: 0;
}

.page-about .about-kw {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
}

.page-about .about-kw-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px var(--space-4);
  padding: var(--space-4) 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-kw-item:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-kw-idx {
  grid-row: 1 / span 2;
  font-family: var(--font-num);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: .04em;
  color: var(--jade-hi);
}

.page-about .about-kw-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  color: var(--ivory);
}

.page-about .about-kw-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 版本演进 ---------- */
.page-about .about-tl-figure {
  margin: 0 0 var(--space-7);
  padding: 10px;
  border: 1px solid var(--line-gold);
  background: linear-gradient(180deg, rgba(231, 199, 124, .07), rgba(6, 8, 10, 0));
  border-radius: var(--radius);
}

.page-about .about-tl-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.page-about .about-tl {
  list-style: none;
  margin: 0;
  padding: 0 0 0 30px;
  position: relative;
}

.page-about .about-tl::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(231, 199, 124, .35) 55%, rgba(231, 199, 124, .05) 100%);
}

.page-about .about-tl-item {
  position: relative;
  padding-bottom: var(--space-6);
}

.page-about .about-tl-item:last-child {
  padding-bottom: 0;
}

.page-about .about-tl-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 14px;
  width: 15px;
  height: 15px;
  transform: rotate(45deg);
  border: 1px solid var(--gold-deep);
  background: var(--ink-900);
}

.page-about .about-tl-item:last-child::before {
  background: var(--jade);
  border-color: var(--jade-hi);
}

.page-about .about-tl-year {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-num);
  font-size: clamp(26px, 3.6vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--gold);
}

.page-about .about-tl-card {
  padding: var(--space-4) var(--space-5);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--gold-deep);
  background: linear-gradient(150deg, rgba(19, 28, 32, .92), rgba(14, 20, 23, .62));
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}

.page-about .about-tl-item:hover .about-tl-card,
.page-about .about-tl-item:focus-within .about-tl-card {
  border-left-color: var(--jade-hi);
  transform: translateX(4px);
}

.page-about .about-tl-card .tag {
  display: inline-block;
  margin-bottom: var(--space-2);
}

.page-about .about-tl-card h3 {
  margin: 0 0 var(--space-2);
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ivory);
}

.page-about .about-tl-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 运营原则 ---------- */
.page-about .about-rules {
  list-style: none;
  margin: var(--space-6) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

.page-about .about-rule {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--gold-deep);
  background: rgba(14, 20, 23, .6);
}

.page-about .about-rule:nth-child(even) {
  border-top-color: var(--jade);
}

.page-about .about-rule-num {
  display: block;
  margin-bottom: var(--space-3);
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-about .about-rule h3 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ivory);
}

.page-about .about-rule p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 团队 ---------- */
.page-about .about-team-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

.page-about .about-team-text .section-title {
  margin: var(--space-3) 0 var(--space-4);
}

.page-about .about-team-text .lede {
  margin: 0;
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-5) var(--space-4);
  margin-top: var(--space-6);
}

.page-about .about-stat {
  padding-left: var(--space-3);
  border-left: 1px solid var(--line-gold);
}

.page-about .about-stat-value {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(30px, 4.2vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: var(--jade-hi);
  font-variant-numeric: tabular-nums;
}

.page-about .about-stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: .05em;
  color: var(--mist);
}

.page-about .about-team-note {
  margin: var(--space-5) 0 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-team-media .media__frame {
  border: 1px solid var(--line-soft);
  background: var(--ink-800);
}

.page-about .about-team-media .media__caption {
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 服务覆盖 ---------- */
.page-about .about-cover {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.page-about .about-cover-lead {
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line-gold);
  background: radial-gradient(130% 130% at 0% 0%, rgba(14, 143, 110, .2), rgba(6, 8, 10, 0) 62%);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-about .about-cover-num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(52px, 8vw, 84px);
  font-weight: 700;
  line-height: .9;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-about .about-cover-num-label {
  display: block;
  margin-top: var(--space-3);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--ivory);
  opacity: .82;
}

.page-about .about-cover-lead p {
  margin: var(--space-4) 0 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-cover-facts {
  margin: 0;
}

.page-about .about-cover-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: var(--space-4) 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .about-cover-row:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-cover-row dt {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-about .about-cover-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ivory);
  opacity: .82;
}

/* ---------- 下一步 ---------- */
.page-about .about-next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.page-about .about-next-card {
  position: relative;
  display: block;
  overflow: hidden;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line-soft);
  background: rgba(14, 20, 23, .62);
  text-decoration: none;
  color: inherit;
  transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
}

.page-about .about-next-card::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--jade-hi), var(--gold));
  transition: width .35s var(--ease);
}

.page-about .about-next-card:hover,
.page-about .about-next-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--line-hard);
  background: rgba(19, 28, 32, .8);
  outline: none;
}

.page-about .about-next-card:hover::after,
.page-about .about-next-card:focus-visible::after {
  width: 100%;
}

.page-about .about-next-title {
  margin: 0 0 var(--space-2);
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--ivory);
}

.page-about .about-next-desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-about .about-cover-row {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: var(--space-4);
    align-items: start;
  }

  .page-about .about-cover-row dt {
    padding-top: 3px;
  }
}

@media (min-width: 720px) {
  .page-about .about-rules {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-about .about-stats {
    gap: var(--space-5);
  }
}

@media (min-width: 760px) {
  .page-about .about-claim-grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: start;
  }

  .page-about .about-claim-media {
    margin-top: 36px;
  }
}

@media (min-width: 820px) {
  .page-about .about-team-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: center;
  }

  .page-about .about-cover {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .about-sheet-grid {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-about .about-side {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-about .about-side-list {
    display: block;
    overflow: visible;
    border-left: 1px solid var(--line-soft);
  }

  .page-about .about-side-link {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    margin-left: -1px;
    padding: 9px 0 9px 16px;
    background: transparent;
  }

  .page-about .about-side-link:hover,
  .page-about .about-side-link:focus-visible {
    border-left-color: var(--gold);
    background: linear-gradient(90deg, rgba(231, 199, 124, .1), rgba(6, 8, 10, 0));
  }
}
<<<END>>>