.page-about {
  --about-edge: rgba(255, 255, 255, .10);
  --about-gold: rgba(224, 194, 122, .28);
  position: relative;
  background: var(--rb-indigo);
  color: var(--rb-mist);
  font-family: var(--rb-font-body);
  line-height: 1.82;
}

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

.page-about .about-section {
  position: relative;
  padding: clamp(46px, 7vw, 96px) 0;
}

.page-about .about-section__head {
  max-width: 760px;
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-about .about-section__head .rb-h2 {
  margin: 10px 0 14px;
  font-family: var(--rb-font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.2vw, 40px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--rb-mist);
}

.page-about .about-section__lead {
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: rgba(244, 247, 252, .78);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 52px) 0 clamp(52px, 8vw, 100px);
  background:
    radial-gradient(110% 80% at 92% 2%, rgba(45, 226, 208, .20), transparent 60%),
    radial-gradient(90% 70% at 0% 100%, rgba(255, 122, 89, .14), transparent 62%),
    linear-gradient(155deg, var(--rb-indigo) 0%, var(--rb-violet) 46%, var(--rb-teal) 100%);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -20%;
  left: 40%;
  height: 58%;
  background: linear-gradient(135deg, rgba(45, 226, 208, .14), rgba(224, 194, 122, .10) 55%, rgba(255, 122, 89, .12));
  border-top: 1px solid var(--about-gold);
  transform: skewY(-6deg);
  pointer-events: none;
}

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

.page-about .about-hero__inner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .055) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(70% 100% at 12% 0%, #000 0%, transparent 78%);
  mask-image: radial-gradient(70% 100% at 12% 0%, #000 0%, transparent 78%);
  pointer-events: none;
  z-index: -1;
}

.page-about .about-hero .rb-eyebrow {
  margin-top: 22px;
  color: var(--rb-gold);
}

.page-about .about-hero__title {
  margin: 12px 0 18px;
  max-width: 20ch;
  font-family: var(--rb-font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 62px);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--rb-mist);
}

.page-about .about-hero__title em {
  font-style: normal;
  color: var(--rb-cyan);
}

.page-about .about-hero__lede {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  color: rgba(244, 247, 252, .86);
}

.page-about .about-hero__flags {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__flags li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--about-edge);
  border-radius: var(--rb-radius-sm);
  background: rgba(36, 26, 77, .42);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  font-size: 14px;
  line-height: 1.6;
  color: rgba(244, 247, 252, .9);
}

.page-about .about-hero__flag-num {
  flex: 0 0 auto;
  font-family: var(--rb-font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--rb-cyan);
}

@media (min-width: 640px) {
  .page-about .about-hero__flags {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 24px;
  }
}

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

/* ---------- 品牌起点 ---------- */

.page-about .about-story__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 5vw, 56px);
}

.page-about .about-story__text .rb-h2 {
  margin: 10px 0 18px;
  font-family: var(--rb-font-display);
  font-weight: 900;
  font-size: clamp(25px, 4vw, 38px);
  line-height: 1.26;
  color: var(--rb-mist);
}

.page-about .about-story__text .rb-prose p {
  margin: 0 0 1.05em;
  color: rgba(244, 247, 252, .84);
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.9;
}

.page-about .about-story__text .rb-prose p:last-child {
  margin-bottom: 0;
}

.page-about .about-story__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--about-gold);
  border-radius: var(--rb-radius);
  overflow: hidden;
  background: rgba(36, 26, 77, .35);
}

.page-about .about-story__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-story__figure .rb-figure__caption {
  margin: 0;
  padding: 12px 16px 14px;
  font-family: var(--rb-font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--rb-warm);
  border-top: 1px solid var(--about-edge);
}

@media (min-width: 900px) {
  .page-about .about-story__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: start;
  }

  .page-about .about-story__figure {
    margin-top: 40px;
  }
}

/* ---------- 三条原则 ---------- */

.page-about .about-principles {
  background: linear-gradient(180deg, rgba(36, 26, 77, 0) 0%, rgba(36, 26, 77, .5) 20%, rgba(36, 26, 77, .5) 80%, rgba(36, 26, 77, 0) 100%);
}

.page-about .principle-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-gold);
}

.page-about .principle {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 18px;
  padding: clamp(20px, 3vw, 30px) 0;
  border-bottom: 1px solid var(--about-edge);
  transition: background-color .18s var(--rb-ease);
}

.page-about .principle:hover {
  background: rgba(45, 226, 208, .05);
}

.page-about .principle__idx {
  grid-row: span 2;
  padding-top: .38em;
  font-family: var(--rb-font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--rb-gold);
}

.page-about .principle .rb-h3 {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.4;
  color: var(--rb-mist);
}

.page-about .principle p {
  margin: 0;
  max-width: 70ch;
  font-size: clamp(14.5px, 1.4vw, 16px);
  line-height: 1.85;
  color: rgba(244, 247, 252, .78);
}

/* ---------- 时间线 ---------- */

.page-about .about-timeline {
  background: linear-gradient(180deg, rgba(11, 52, 64, 0) 0%, rgba(11, 52, 64, .78) 14%, rgba(11, 52, 64, .78) 86%, rgba(11, 52, 64, 0) 100%);
}

.page-about .about-timeline__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 48px);
}

.page-about .about-timeline__main .rb-h2 {
  margin: 8px 0 12px;
  font-family: var(--rb-font-display);
  font-weight: 900;
  font-size: clamp(25px, 4vw, 38px);
  line-height: 1.26;
  color: var(--rb-mist);
}

.page-about .about-timeline__lead {
  margin: 0 0 clamp(20px, 3vw, 30px);
  max-width: 62ch;
  font-size: clamp(14.5px, 1.4vw, 16px);
  line-height: 1.85;
  color: rgba(244, 247, 252, .74);
}

.page-about .year-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-about .year-nav__link {
  flex: 0 0 auto;
  padding: 8px 12px;
  border-left: 2px solid transparent;
  border-radius: 4px;
  font-family: var(--rb-font-mono);
  font-size: 14px;
  letter-spacing: .08em;
  color: rgba(244, 247, 252, .62);
  text-decoration: none;
  white-space: nowrap;
  transition: color .18s var(--rb-ease), border-color .18s var(--rb-ease), background-color .18s var(--rb-ease);
}

.page-about .year-nav__link:hover,
.page-about .year-nav__link:focus-visible {
  color: var(--rb-cyan);
  border-left-color: var(--rb-cyan);
  background: rgba(45, 226, 208, .08);
}

.page-about .about-timeline__figure {
  margin: 0 0 clamp(22px, 3vw, 34px);
  border: 1px solid var(--about-edge);
  border-radius: var(--rb-radius);
  overflow: hidden;
}

.page-about .about-timeline__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

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

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 18px;
  width: 1px;
  background: linear-gradient(180deg, var(--about-gold), rgba(255, 255, 255, .07));
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 clamp(22px, 3.4vw, 34px) 34px;
  border-radius: var(--rb-radius-sm);
  transition: background-color .2s var(--rb-ease);
}

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 9px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--rb-indigo);
  border: 2px solid var(--rb-gold);
  transition: border-color .18s var(--rb-ease), box-shadow .18s var(--rb-ease);
}

.page-about .timeline__item:hover::before,
.page-about .timeline__item:target::before {
  border-color: var(--rb-cyan);
  box-shadow: 0 0 0 4px rgba(45, 226, 208, .16);
}

.page-about .timeline__item:target {
  background: rgba(45, 226, 208, .07);
}

.page-about .timeline__year {
  display: block;
  margin-bottom: 2px;
  font-family: var(--rb-font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--rb-gold);
}

.page-about .timeline__item .rb-h3 {
  margin: 0 0 6px;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.45;
  color: var(--rb-mist);
}

.page-about .timeline__item p {
  margin: 0;
  max-width: 66ch;
  font-size: clamp(14.5px, 1.4vw, 16px);
  line-height: 1.85;
  color: rgba(244, 247, 252, .78);
}

@media (min-width: 960px) {
  .page-about .about-timeline__layout {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 68px);
  }

  .page-about .about-timeline__index {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-about .year-nav {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .year-nav__link {
    padding: 9px 12px;
  }
}

/* ---------- 团队 ---------- */

.page-about .rb-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-about .about-team__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
}

.page-about .team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(178px, 1fr));
  gap: 14px;
}

.page-about .team-card {
  padding: 18px 16px 20px;
  border: 1px solid var(--about-edge);
  border-radius: var(--rb-radius-sm);
  background: rgba(36, 26, 77, .44);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: border-color .18s var(--rb-ease), background-color .18s var(--rb-ease);
}

.page-about .team-card:hover {
  border-color: rgba(45, 226, 208, .34);
  background: rgba(36, 26, 77, .66);
}

.page-about .team-card__num {
  margin: 0;
  font-family: var(--rb-font-mono);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--rb-cyan);
}

.page-about .team-card__num small {
  margin-left: 2px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--rb-warm);
}

.page-about .team-card .rb-h3 {
  margin: 6px 0 8px;
  font-size: 17px;
  line-height: 1.5;
  color: var(--rb-mist);
}

.page-about .team-card p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(244, 247, 252, .72);
}

.page-about .about-team__figure {
  margin: 0;
  border: 1px solid var(--about-gold);
  border-radius: var(--rb-radius);
  overflow: hidden;
}

.page-about .about-team__figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-team__figure .rb-figure__caption {
  margin: 0;
  padding: 12px 16px 14px;
  font-family: var(--rb-font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--rb-warm);
  border-top: 1px solid var(--about-edge);
}

@media (min-width: 980px) {
  .page-about .about-team__layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    align-items: start;
  }
}

/* ---------- 数据条 ---------- */

.page-about .about-metrics {
  background: linear-gradient(120deg, rgba(58, 18, 48, .78), rgba(8, 18, 43, .94) 62%);
  border-top: 1px solid var(--about-gold);
  border-bottom: 1px solid var(--about-edge);
}

.page-about .metric-bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--about-edge);
  border: 1px solid var(--about-edge);
  border-radius: var(--rb-radius-sm);
  overflow: hidden;
}

.page-about .metric {
  padding: 16px 15px 18px;
  background: rgba(8, 18, 43, .92);
  transition: background-color .18s var(--rb-ease);
}

.page-about .metric:hover,
.page-about .metric:focus-within {
  background: rgba(36, 26, 77, .92);
}

.page-about .metric__num {
  display: block;
  font-family: var(--rb-font-mono);
  font-size: clamp(23px, 3vw, 30px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--rb-mist);
}

.page-about .metric__num em {
  margin-left: 3px;
  font-style: normal;
  font-size: .5em;
  vertical-align: .28em;
  color: var(--rb-cyan);
}

.page-about .metric__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(244, 247, 252, .84);
}

.page-about .metric__note {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.65;
  color: rgba(185, 190, 207, .78);
  transition: color .18s var(--rb-ease);
}

.page-about .metric:hover .metric__note,
.page-about .metric:focus-within .metric__note {
  color: var(--rb-coral-soft);
}

@media (min-width: 520px) {
  .page-about .metric-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .metric-bar {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 合作与认可 ---------- */

.page-about .about-partners {
  background: linear-gradient(200deg, rgba(58, 18, 48, .58), rgba(8, 18, 43, 0) 72%);
}

.page-about .partner-block {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--about-edge);
  border-radius: var(--rb-radius-sm);
  background: rgba(36, 26, 77, .38);
}

.page-about .partner-block--wine {
  background: rgba(58, 18, 48, .52);
  border-color: rgba(224, 194, 122, .30);
}

.page-about .partner-block .rb-h3 {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 21px);
  line-height: 1.5;
  color: var(--rb-mist);
}

.page-about .partner-list {
  display: grid;
  gap: 12px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .partner-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(244, 247, 252, .82);
}

.page-about .partner-list li::before {
  content: "";
  flex: 0 0 6px;
  width: 6px;
  height: 6px;
  margin-top: 2px;
  background: var(--rb-cyan);
  transform: rotate(45deg);
}

.page-about .partner-list strong {
  flex: 0 0 auto;
  font-weight: 600;
  color: var(--rb-gold);
}

.page-about .partner-block__text {
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.88;
  color: rgba(244, 247, 252, .8);
}

.page-about .partner-block__text + .partner-block__text {
  margin-top: 12px;
}

/* ---------- 收尾 ---------- */

.page-about .about-outro {
  padding: clamp(44px, 6vw, 78px) 0 clamp(56px, 8vw, 100px);
  background:
    radial-gradient(80% 120% at 82% 0%, rgba(255, 122, 89, .16), transparent 62%),
    var(--rb-indigo);
  border-top: 1px solid var(--about-edge);
}

.page-about .about-outro__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-about .about-outro .rb-h2 {
  margin: 10px 0 0;
  font-family: var(--rb-font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.8vw, 36px);
  line-height: 1.28;
  color: var(--rb-mist);
}

.page-about .outro-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 860px) {
  .page-about .about-outro__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-about .outro-links {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}
<<<END>>>