.page-about {
  --about-rail: 190px;
  display: block;
  padding-bottom: clamp(48px, 8vw, 120px);
}

/* ============ 首屏 ============ */
.page-about .about-hero {
  position: relative;
  padding: clamp(24px, 4vw, 48px) 0 clamp(28px, 5vw, 60px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -90px;
  left: -10%;
  width: min(600px, 78vw);
  height: min(600px, 78vw);
  background: radial-gradient(circle at 50% 50%, rgba(226, 167, 46, 0.16), rgba(226, 167, 46, 0) 62%);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

@media (min-width: 940px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, 1fr);
    align-items: end;
    gap: clamp(36px, 5vw, 76px);
  }
}

.page-about .about-hero__title {
  margin: 14px 0 18px;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.12;
  font-weight: 300;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-about .about-hero__title .brush {
  font-family: var(--font-brush);
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.02em;
}

.page-about .about-hero__lede {
  margin: 0 0 24px;
  max-width: 46em;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-about .about-hero__card {
  border: 1px solid var(--line);
  border-left: 2px solid var(--line-gold);
  background: linear-gradient(170deg, rgba(23, 17, 34, 0.96), rgba(13, 10, 18, 0.96));
  box-shadow: var(--shadow-sm);
  padding: 20px 20px 18px;
}

@media (min-width: 940px) {
  .page-about .about-hero__card {
    margin-bottom: -30px;
  }
}

.page-about .about-hero__card-label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 12px;
  margin: 0;
}

.page-about .about-fact {
  border-top: 1px solid var(--line);
  padding-top: 8px;
}

.page-about .about-fact dt {
  font-size: 12px;
  color: var(--mist);
  letter-spacing: 0.06em;
}

.page-about .about-fact dd {
  margin: 4px 0 0;
  font-size: 20px;
  color: var(--gold-bright);
  letter-spacing: 0.05em;
}

.page-about .about-hero__card-note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ============ 主体两栏 ============ */
.page-about .about-body {
  display: grid;
  gap: clamp(22px, 3.4vw, 36px);
  padding-top: clamp(22px, 3.4vw, 40px);
  border-top: 1px solid var(--line-gold);
}

@media (min-width: 1000px) {
  .page-about .about-body {
    grid-template-columns: var(--about-rail) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 80px);
    align-items: start;
  }
}

/* ---- 侧栏年份索引 ---- */
.page-about .about-rail__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-about .about-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-rail__link {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 132px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  color: var(--mist);
  text-decoration: none;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-about .about-rail__num {
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 0.14em;
}

.page-about .about-rail__label {
  font-size: 14px;
  color: inherit;
}

.page-about .about-rail__meta {
  font-size: 11px;
  color: var(--mist);
  opacity: 0.82;
  letter-spacing: 0.06em;
}

.page-about .about-rail__link:hover,
.page-about .about-rail__link:focus-visible {
  color: var(--gold-bright);
  border-color: var(--line-gold);
}

.page-about .about-rail__link[aria-current="true"] {
  border-color: var(--gold);
  background: rgba(226, 167, 46, 0.08);
  color: var(--gold-bright);
}

@media (min-width: 1000px) {
  .page-about .about-rail {
    position: sticky;
    top: 112px;
    align-self: start;
  }

  .page-about .about-rail__list {
    flex-direction: column;
    gap: 0;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-about .about-rail__link {
    min-width: 0;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 4px 10px;
    padding: 9px 0 9px 12px;
    border: 0;
    border-left: 1px solid var(--line);
    background: transparent;
  }

  .page-about .about-rail__label {
    flex: 1 1 auto;
  }

  .page-about .about-rail__meta {
    flex: 1 1 100%;
    padding-left: 26px;
  }

  .page-about .about-rail__link:hover,
  .page-about .about-rail__link:focus-visible,
  .page-about .about-rail__link[aria-current="true"] {
    border-left-color: var(--gold);
    background: transparent;
  }
}

/* ============ 章节 ============ */
.page-about .about-section {
  padding: clamp(26px, 4vw, 44px) 0;
}

.page-about .about-section + .about-section {
  border-top: 1px solid var(--line);
}

.page-about .about-section__head {
  display: grid;
  gap: 8px;
  max-width: 68ch;
  margin-bottom: clamp(18px, 3vw, 32px);
}

.page-about .about-section__num {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-about .about-section__title {
  margin: 0;
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 300;
  line-height: 1.22;
  color: var(--ivory);
}

.page-about .about-section__lede {
  margin: 4px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

/* ============ 01 服务卡片 ============ */
.page-about .about-service-grid {
  display: grid;
  gap: 14px;
}

@media (min-width: 800px) {
  .page-about .about-service-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-about .about-service {
  display: flex;
  flex-direction: column;
  padding: 20px 20px 18px;
  border: 1px solid var(--line);
  background: var(--ink-2);
  box-shadow: var(--shadow-sm);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-about .about-service:hover {
  transform: translateY(-4px);
  border-color: var(--line-gold);
}

.page-about .about-service .tag {
  align-self: flex-start;
  margin-bottom: 12px;
}

.page-about .about-service__title {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 400;
  line-height: 1.45;
  color: var(--ivory);
}

.page-about .about-service__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-about .about-service__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-about .about-service__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

.page-about .about-service__more {
  margin: auto 0 0;
  padding-top: 16px;
  font-size: 14px;
}

.page-about .about-service__more a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
}

.page-about .about-service__more a:hover {
  color: var(--gold-bright);
}

/* ============ 图片 ============ */
.page-about .about-figure {
  margin: 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--ink-2);
  object-fit: cover;
}

.page-about .about-figure--wide {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-about .about-figure--wide img {
  aspect-ratio: 2 / 1;
}

.page-about .about-figure__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ============ 02 时间线 ============ */
@media (min-width: 1000px) {
  .page-about .about-figure--wide {
    width: calc(100% + 34px);
    margin-left: -34px;
  }
}

.page-about .about-timeline {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline__item {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-top: 1px dashed var(--line);
}

.page-about .about-timeline__item:first-child {
  border-top: 0;
}

@media (min-width: 800px) {
  .page-about .about-timeline__item {
    grid-template-columns: minmax(104px, 156px) minmax(0, 1fr);
    gap: 30px;
    align-items: start;
    padding: 24px 0;
  }
}

.page-about .about-timeline__year {
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1;
  letter-spacing: 0.05em;
  color: var(--gold);
}

.page-about .about-timeline__title {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 400;
  color: var(--ivory);
}

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

.page-about .about-timeline__more {
  margin-top: 10px !important;
  font-size: 14px;
}

.page-about .about-timeline__more a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold);
}

.page-about .about-timeline__more a:hover {
  color: var(--gold-bright);
}

/* ============ 03 内容生产 ============ */
.page-about .about-process {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

@media (min-width: 900px) {
  .page-about .about-process {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 52px);
    align-items: start;
  }
}

.page-about .about-process__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-about .about-process__item {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.page-about .about-process__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--jade);
  margin-bottom: 6px;
}

.page-about .about-process__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 400;
  color: var(--ivory);
}

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

.page-about .about-figure--side img {
  aspect-ratio: 3 / 2;
}

/* ============ 04 团队 ============ */
.page-about .about-team-grid {
  display: grid;
  gap: 14px;
}

@media (min-width: 820px) {
  .page-about .about-team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-about .about-team {
  padding: 20px 20px 16px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--violet);
  background: var(--ink-2);
}

.page-about .about-team__title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 400;
  color: var(--ivory);
}

.page-about .about-team p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-team__meta {
  margin-top: 14px !important;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--jade);
}

/* ============ 05 合作 ============ */
.page-about .about-partners {
  display: grid;
  gap: 14px;
}

@media (min-width: 820px) {
  .page-about .about-partners {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-about .about-partner {
  padding: 20px 20px 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(23, 17, 34, 0.9), rgba(13, 10, 18, 0.9));
}

.page-about .about-partner__title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 400;
  color: var(--gold-bright);
}

.page-about .about-partner p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-partners__cta {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

/* ============ 06 社区画像 ============ */
.page-about .about-community {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

@media (min-width: 920px) {
  .page-about .about-community {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-community__stats {
    grid-column: 1 / -1;
  }
}

.page-about .about-community__stats {
  display: grid;
  gap: 12px;
}

@media (min-width: 620px) {
  .page-about .about-community__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-about .about-community__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-about .about-stat {
  padding: 18px 16px 16px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--gold);
  background: var(--ink-2);
}

.page-about .about-stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.1;
  letter-spacing: 0.04em;
  color: var(--gold-bright);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

.page-about .about-figure--map img {
  aspect-ratio: 4 / 3;
}

.page-about .about-community__note {
  padding: 20px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  background: rgba(139, 92, 246, 0.06);
}

.page-about .about-community__note-title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 400;
  color: var(--ivory);
}

.page-about .about-community__note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-service,
  .page-about .about-rail__link {
    transition: none;
  }

  .page-about .about-service:hover {
    transform: none;
  }
}
</PAGE_CSS>>>