/* ===== 品牌故事 / page-about ===== */

.page-about {
  --about-rule: rgba(232, 213, 183, .16);
  --about-rule-strong: rgba(232, 213, 183, .32);
  --about-tint: rgba(15, 123, 123, .10);
  background: var(--ink);
  color: var(--cream);
  font-family: var(--font-body);
  line-height: 1.7;
}

.page-about > .breadcrumb {
  padding-top: 1.5rem;
  padding-bottom: .25rem;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  min-height: 460px;
  padding-block: clamp(3rem, 9vw, 6.5rem) clamp(2.5rem, 7vw, 5rem);
}

.page-about .about-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-about .about-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .4;
  filter: saturate(1.15);
  max-width: 100%;
  height: auto;
  min-height: 100%;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(180deg, rgba(11, 11, 15, .62) 0%, rgba(11, 11, 15, .86) 58%, var(--ink) 100%),
    linear-gradient(118deg, rgba(200, 16, 46, .42) 0%, rgba(200, 16, 46, 0) 52%),
    linear-gradient(300deg, rgba(212, 160, 23, .26) 0%, rgba(212, 160, 23, 0) 46%);
}

.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 940px;
}

.page-about .about-hero__inner::before {
  content: "";
  display: block;
  width: 64px;
  height: 5px;
  margin-bottom: 1.5rem;
  background: linear-gradient(90deg, var(--red) 0%, var(--gold) 100%);
  transform: skewX(-26deg);
}

.page-about .about-hero__eyebrow {
  margin: 0 0 1rem;
  color: var(--gold-bright);
}

.page-about .about-hero h1 {
  margin: 0 0 1.5rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 8vw, 4.4rem);
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--white);
  text-wrap: balance;
}

.page-about .about-hero__lede {
  margin: 0 0 1rem;
  max-width: 62ch;
  font-size: clamp(1rem, 1.8vw, 1.125rem);
  color: rgba(247, 243, 234, .86);
}

.page-about .about-hero__lede--sub {
  color: rgba(232, 213, 183, .78);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 2rem;
}

/* ---------- 章节骨架 ---------- */

.page-about .about-chapter {
  position: relative;
  padding-block: clamp(3rem, 8vw, 6.5rem);
  border-top: 1px solid var(--about-rule);
}

.page-about .about-chapter--tint {
  background:
    linear-gradient(180deg, rgba(15, 123, 123, .12) 0%, rgba(15, 123, 123, .02) 70%, transparent 100%);
}

.page-about .about-chapter--timeline {
  background:
    linear-gradient(180deg, transparent 0%, rgba(200, 16, 46, .10) 50%, transparent 100%);
}

.page-about .about-chapter--future {
  border-bottom: 1px solid var(--about-rule);
}

.page-about .about-chapter__grid {
  display: grid;
  gap: 1.75rem;
}

.page-about .about-chapter__narrow {
  max-width: 780px;
}

.page-about .about-chapter__head {
  max-width: 760px;
  margin-bottom: clamp(2rem, 5vw, 3.25rem);
}

.page-about .about-chapter__label {
  display: flex;
  align-items: baseline;
  gap: .75rem;
}

.page-about .about-chapter__label--inline {
  margin-bottom: 1.25rem;
}

.page-about .about-chapter__no {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  opacity: .85;
  font-variant-numeric: tabular-nums;
}

.page-about .about-chapter__tag {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--teal-bright);
}

.page-about .about-chapter__body h2,
.page-about .about-chapter__head h2,
.page-about .about-chapter__narrow h2 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.6rem, 4.6vw, 2.7rem);
  line-height: 1.16;
  color: var(--white);
  text-wrap: balance;
}

.page-about .about-chapter__intro,
.page-about .about-chapter__lead {
  margin: 0 0 1.25rem;
  max-width: 66ch;
  color: rgba(247, 243, 234, .85);
}

.page-about .about-chapter__body p {
  margin: 0 0 1.1rem;
  max-width: 66ch;
}

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

/* ---------- 斜线轨迹装饰 ---------- */

.page-about .about-trail {
  display: block;
  width: 100%;
  height: 54px;
  margin-top: 1.25rem;
  color: var(--gold);
  opacity: .5;
}

/* ---------- 时间线 ---------- */

.page-about .timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: .5rem;
  bottom: .5rem;
  width: 2px;
  background: linear-gradient(180deg, var(--gold-bright) 0%, var(--red) 48%, var(--teal-bright) 100%);
  transform: skewX(-5deg);
  transform-origin: top center;
  opacity: .7;
}

.page-about .timeline__item {
  position: relative;
  padding-left: 2.25rem;
}

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: 1px;
  top: .9rem;
  width: 10px;
  height: 10px;
  background: var(--ink);
  border: 2px solid var(--gold-bright);
  transform: rotate(45deg);
}

.page-about .timeline__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .75rem;
  margin-bottom: .5rem;
}

.page-about .timeline__year {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .1em;
  color: var(--gold-bright);
  padding: .2rem .55rem;
  border: 1px solid rgba(242, 193, 78, .38);
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
  white-space: nowrap;
}

.page-about .timeline__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 3.2vw, 1.5rem);
  line-height: 1.3;
  color: var(--white);
}

.page-about .timeline__text {
  margin: 0;
  max-width: 64ch;
  color: rgba(247, 243, 234, .82);
}

.page-about .tl-more {
  margin-top: .75rem;
  max-width: 64ch;
  padding: .7rem .9rem;
  border-left: 3px solid var(--teal-bright);
  background: rgba(15, 123, 123, .12);
}

.page-about .tl-more summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--teal-bright);
}

.page-about .tl-more summary::-webkit-details-marker {
  display: none;
}

.page-about .tl-more summary::before {
  content: "+ ";
  font-weight: 700;
}

.page-about .tl-more[open] summary::before {
  content: "− ";
}

.page-about .tl-more p {
  margin: .7rem 0 0;
  font-size: .95rem;
  color: rgba(232, 213, 183, .85);
}

/* ---------- 团队数据 ---------- */

.page-about .stat-grid {
  list-style: none;
  margin: 2rem 0 2.5rem;
  padding: 0;
  display: grid;
  gap: .875rem;
}

.page-about .stat-grid__item {
  position: relative;
  padding: 1.35rem 1.25rem 1.5rem;
  background: linear-gradient(160deg, rgba(200, 16, 46, .18) 0%, rgba(22, 22, 31, .9) 62%);
  border: 1px solid var(--about-rule);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  display: flex;
  flex-direction: column;
  gap: .2rem;
}

.page-about .stat-grid__num {
  font-family: var(--font-mono);
  font-size: clamp(2.2rem, 7vw, 3.1rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold-bright);
  font-variant-numeric: tabular-nums;
}

.page-about .stat-grid__unit {
  font-family: var(--font-mono);
  font-size: .9rem;
  color: var(--gold);
  margin-left: .25rem;
}

.page-about .stat-grid__label {
  margin-top: .35rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
}

.page-about .stat-grid__note {
  font-size: .875rem;
  line-height: 1.6;
  color: rgba(232, 213, 183, .72);
}

.page-about .about-figure {
  margin: 0;
  display: grid;
  gap: .75rem;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--about-rule);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-about .about-figure figcaption {
  font-size: .85rem;
  line-height: 1.6;
  color: rgba(232, 213, 183, .66);
  border-left: 2px solid var(--gold);
  padding-left: .75rem;
  max-width: 58ch;
}

/* ---------- 内容条目 ---------- */

.page-about .catalog-list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-rule);
  border: 1px solid var(--about-rule);
}

.page-about .catalog-list__item {
  padding: 1.25rem 1.25rem 1.4rem;
  background: var(--ink-soft);
  transition: background .3s var(--ease);
}

.page-about .catalog-list__item h3 {
  margin: 0 0 .5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--gold-bright);
}

.page-about .catalog-list__item p {
  margin: 0;
  max-width: 60ch;
  color: rgba(247, 243, 234, .82);
  font-size: .96rem;
}

/* ---------- 横向数据标签 ---------- */

.page-about .metric-rail {
  list-style: none;
  margin: 2.25rem 0 0;
  padding: 0 0 .875rem;
  display: flex;
  gap: .75rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--teal-bright) transparent;
}

.page-about .metric-rail__item {
  flex: 0 0 clamp(158px, 52vw, 208px);
  scroll-snap-align: start;
  padding: 1rem 1.1rem;
  border: 1px solid rgba(22, 166, 166, .38);
  background: linear-gradient(180deg, rgba(22, 166, 166, .16) 0%, rgba(22, 166, 166, 0) 100%);
  clip-path: polygon(var(--cut-sm) 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%, 0 var(--cut-sm));
  display: flex;
  flex-direction: column;
  gap: .3rem;
}

.page-about .metric-rail__num {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1;
  color: var(--white);
  font-variant-numeric: tabular-nums;
}

.page-about .metric-rail__label {
  font-size: .84rem;
  line-height: 1.5;
  color: rgba(232, 213, 183, .78);
}

/* ---------- 合作生态 ---------- */

.page-about .eco-layout {
  display: grid;
  gap: 1.75rem;
}

.page-about .eco-map {
  margin: 0;
  display: grid;
  gap: .75rem;
}

.page-about .eco-map img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--about-rule-strong);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-about .eco-map figcaption {
  font-size: .85rem;
  color: rgba(232, 213, 183, .7);
  border-left: 2px solid var(--teal-bright);
  padding-left: .75rem;
}

.page-about .eco-cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .75rem;
}

.page-about .eco-card {
  padding: 1.1rem 1.15rem;
  background: rgba(11, 11, 15, .55);
  border: 1px solid var(--about-rule);
  border-left: 3px solid var(--gold);
  display: grid;
  gap: .25rem;
  transition: transform .28s var(--ease), border-color .28s var(--ease), background .28s var(--ease);
}

.page-about .eco-card:hover,
.page-about .eco-card:focus-visible {
  transform: translateX(6px);
  border-color: var(--gold-bright);
  border-left-color: var(--red-bright);
  background: rgba(200, 16, 46, .14);
  outline: none;
}

.page-about .eco-card:focus-visible {
  box-shadow: 0 0 0 2px var(--teal-bright);
}

.page-about .eco-card__num {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--gold-bright);
  font-variant-numeric: tabular-nums;
}

.page-about .eco-card__label {
  font-size: .95rem;
  font-weight: 600;
  color: var(--white);
}

.page-about .eco-card__note {
  font-size: .875rem;
  line-height: 1.62;
  color: rgba(232, 213, 183, .74);
}

.page-about .honor-strip {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--about-rule-strong);
}

/* ---------- 结尾链接 ---------- */

.page-about .next-links {
  list-style: none;
  margin: 2.5rem 0 0;
  padding: 0;
  display: grid;
  gap: .75rem;
}

.page-about .next-links__item {
  display: grid;
  gap: .25rem;
  padding: 1.05rem 1.15rem;
  text-decoration: none;
  color: inherit;
  background: linear-gradient(120deg, rgba(212, 160, 23, .14) 0%, rgba(11, 11, 15, .2) 70%);
  border: 1px solid var(--about-rule);
  clip-path: polygon(var(--cut-sm) 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%, 0 var(--cut-sm));
  transition: background .3s var(--ease), transform .3s var(--ease);
}

.page-about .next-links__item:hover,
.page-about .next-links__item:focus-visible {
  background: linear-gradient(120deg, rgba(200, 16, 46, .26) 0%, rgba(11, 11, 15, .3) 70%);
  transform: translateY(-3px);
  outline: 2px solid var(--teal-bright);
  outline-offset: 2px;
}

.page-about .next-links__key {
  font-family: var(--font-mono);
  font-size: .95rem;
  letter-spacing: .06em;
  color: var(--gold-bright);
}

.page-about .next-links__desc {
  font-size: .9rem;
  color: rgba(232, 213, 183, .8);
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-about .stat-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

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

  .page-about .timeline__item:nth-child(2) {
    padding-left: 3rem;
  }

  .page-about .timeline__item:nth-child(3) {
    padding-left: 3.75rem;
  }

  .page-about .timeline__item:nth-child(4) {
    padding-left: 4.5rem;
  }

  .page-about .timeline__item:nth-child(5) {
    padding-left: 5.25rem;
  }
}

@media (min-width: 1024px) {
  .page-about .about-chapter__grid {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 2rem 3rem;
  }

  .page-about .about-chapter__label {
    position: sticky;
    top: 6rem;
    align-self: start;
    flex-direction: column;
    align-items: flex-start;
    gap: .5rem;
  }

  .page-about .about-chapter__label--inline {
    position: static;
    flex-direction: row;
    align-items: baseline;
  }

  .page-about .eco-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-about .eco-map {
    position: sticky;
    top: 6rem;
  }

  .page-about .about-hero {
    min-height: 600px;
  }

  .page-about .next-links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .eco-card,
  .page-about .next-links__item,
  .page-about .catalog-list__item {
    transition: none;
  }

  .page-about .eco-card:hover,
  .page-about .eco-card:focus-visible,
  .page-about .next-links__item:hover,
  .page-about .next-links__item:focus-visible {
    transform: none;
  }
}
<<<END>>>