.page-about {
  --about-hair: rgba(30, 66, 102, .55);
  --about-soft: rgba(139, 184, 217, .14);
  --about-gap: clamp(1rem, 3vw, 1.6rem);
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(1.4rem, 4vw, 2.6rem) 0 clamp(2.4rem, 7vw, 4.6rem);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -10% -8% 0;
  background-image:
    linear-gradient(var(--about-hair) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-hair) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: .3;
  -webkit-mask-image: radial-gradient(120% 78% at 10% 0%, #000 0%, transparent 68%);
  mask-image: radial-gradient(120% 78% at 10% 0%, #000 0%, transparent 68%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.7rem, 5vw, 3.4rem);
}

.page-about .about-hero__lead .w28-display {
  margin: .55rem 0 0;
  max-width: 22ch;
  font-size: clamp(1.85rem, 5.6vw, 3.35rem);
  line-height: 1.16;
  letter-spacing: -.01em;
}

.page-about .about-hero__lead .w28-lede {
  margin: 1.15rem 0 0;
  max-width: 58ch;
}

.page-about .about-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.6rem;
}

.page-about .about-hero__side {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1.15rem;
  border: 1px solid var(--w28-line);
  border-radius: var(--w28-radius-lg);
  background: linear-gradient(158deg, rgba(16, 42, 68, .94), rgba(8, 26, 43, .94));
  box-shadow: 0 20px 46px rgba(0, 0, 0, .3);
}

.page-about .about-rotate {
  flex: none;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--w28-font-mono);
  font-size: .66rem;
  letter-spacing: .26em;
  color: var(--w28-gray);
  text-transform: uppercase;
}

.page-about .about-facts {
  margin: 0;
  display: grid;
  gap: .7rem;
  width: 100%;
}

.page-about .about-facts__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding-bottom: .55rem;
  border-bottom: 1px solid var(--about-hair);
}

.page-about .about-facts__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-facts dt {
  font-size: .78rem;
  letter-spacing: .05em;
  color: var(--w28-gray);
}

.page-about .about-facts dd {
  margin: 0;
  font-family: var(--w28-font-mono);
  font-size: .92rem;
  font-weight: 600;
  color: var(--w28-paper);
}

.page-about .about-facts__row:nth-child(2) dd { color: var(--w28-cyan); }
.page-about .about-facts__row:nth-child(4) dd { color: var(--w28-amber); }
.page-about .about-facts__row:nth-child(5) dd { color: var(--w28-gold); }

/* ---------- 统一区块标题 ---------- */
.page-about .about-head {
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-about .about-head .w28-kicker {
  display: block;
  margin: 0 0 .5rem;
}

.page-about .about-head .w28-h2 {
  margin: 0;
  max-width: 26ch;
  font-size: clamp(1.4rem, 3.6vw, 2.15rem);
  line-height: 1.24;
}

.page-about .about-head .w28-note {
  margin: .85rem 0 0;
  max-width: 58ch;
}

/* ---------- 品牌历程时间轴 ---------- */
.page-about .about-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4vw, 3rem);
}

.page-about .about-timeline__figure {
  margin: 0;
  border: 1px solid var(--w28-line);
  border-radius: var(--w28-radius);
  overflow: hidden;
  background: var(--w28-panel);
}

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

.page-about .about-timeline__figure figcaption {
  padding: .7rem .9rem;
  font-family: var(--w28-font-mono);
  font-size: .72rem;
  letter-spacing: .05em;
  color: var(--w28-gray);
  border-top: 1px solid var(--about-hair);
}

.page-about .about-timeline__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.5rem;
  border-left: 1px solid var(--w28-line);
  display: grid;
  gap: clamp(1.3rem, 3.2vw, 2.1rem);
}

.page-about .about-timeline__item {
  position: relative;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: -1.5rem;
  top: .42rem;
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  background: var(--w28-deep);
  border: 2px solid var(--w28-cyan);
  transform: translateX(-50%);
}

.page-about .about-timeline__item:nth-child(4)::before { border-color: var(--w28-amber); }
.page-about .about-timeline__item:nth-child(6)::before { border-color: var(--w28-gold); }

.page-about .about-timeline__stage {
  display: inline-block;
  margin-bottom: .35rem;
  font-family: var(--w28-font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--w28-cyan);
}

.page-about .about-timeline__item:nth-child(4) .about-timeline__stage { color: var(--w28-amber); }
.page-about .about-timeline__item:nth-child(6) .about-timeline__stage { color: var(--w28-gold); }

.page-about .about-timeline__title {
  margin: 0 0 .4rem;
  font-size: clamp(1.02rem, 2.4vw, 1.28rem);
  font-weight: 700;
  color: var(--w28-paper);
}

.page-about .about-timeline__text {
  margin: 0;
  max-width: 52ch;
  font-size: .95rem;
  line-height: 1.78;
  color: rgba(245, 241, 232, .74);
}

/* ---------- 使命与价值主张 ---------- */
.page-about .about-mission {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 4vw, 2.6rem);
}

.page-about .about-mission__text p {
  margin: 0 0 1rem;
  max-width: 52ch;
  font-size: clamp(.98rem, 2vw, 1.08rem);
  line-height: 1.85;
  color: rgba(245, 241, 232, .82);
}

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

.page-about .about-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-about .about-point {
  padding: 1rem 1.05rem;
  border-left: 2px solid var(--w28-cyan);
  border-radius: 0 var(--w28-radius) var(--w28-radius) 0;
  background: linear-gradient(90deg, rgba(44, 232, 224, .08), rgba(44, 232, 224, 0) 72%);
}

.page-about .about-point:nth-child(2) {
  border-left-color: var(--w28-orange);
  background: linear-gradient(90deg, rgba(255, 107, 53, .08), rgba(255, 107, 53, 0) 72%);
}

.page-about .about-point:nth-child(3) {
  border-left-color: var(--w28-gold);
  background: linear-gradient(90deg, rgba(212, 175, 55, .08), rgba(212, 175, 55, 0) 72%);
}

.page-about .about-point__title {
  margin: 0 0 .35rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--w28-paper);
}

.page-about .about-point p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(245, 241, 232, .7);
}

/* ---------- 双城服务 ---------- */
.page-about .about-city {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 4vw, 2.6rem);
  align-items: center;
}

.page-about .about-city__figure {
  margin: 0;
  border: 1px solid var(--w28-line);
  border-radius: var(--w28-radius);
  overflow: hidden;
  background: var(--w28-panel);
}

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

.page-about .about-city__figure figcaption {
  padding: .7rem .9rem;
  font-family: var(--w28-font-mono);
  font-size: .72rem;
  color: var(--w28-gray);
  border-top: 1px solid var(--about-hair);
}

.page-about .about-shanghai .about-city__figure {
  box-shadow: inset 0 0 0 1px rgba(44, 232, 224, .12);
}

.page-about .about-guangzhou .about-city__figure {
  box-shadow: inset 0 0 0 1px rgba(255, 107, 53, .14);
}

.page-about .about-city__body > p {
  margin: 0 0 1rem;
  max-width: 54ch;
  font-size: .96rem;
  line-height: 1.8;
  color: rgba(245, 241, 232, .78);
}

.page-about .about-tags {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

/* ---------- 角色墙 ---------- */
.page-about .about-roles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: .85rem;
}

.page-about .about-role {
  position: relative;
  padding: 1.05rem .95rem 1.1rem;
  border: 1px solid var(--w28-line);
  border-radius: var(--w28-radius);
  background: var(--w28-panel);
  transition: transform .32s var(--w28-ease), border-color .32s var(--w28-ease), box-shadow .32s var(--w28-ease);
}

.page-about .about-role:hover {
  transform: translateY(-4px);
  border-color: var(--w28-orange);
  box-shadow: 0 14px 30px rgba(0, 0, 0, .32);
}

.page-about .about-role__no {
  display: block;
  font-family: var(--w28-font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  color: var(--w28-amber);
}

.page-about .about-role__name {
  margin: .4rem 0 .5rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--w28-paper);
}

.page-about .about-role__desc {
  margin: 0;
  font-size: .87rem;
  line-height: 1.72;
  color: rgba(245, 241, 232, .72);
}

/* ---------- 供应商矩阵 ---------- */
.page-about .about-matrix__scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--w28-line);
  border-radius: var(--w28-radius);
  background: var(--about-hair);
}

.page-about .about-matrix {
  display: grid;
  grid-template-columns: minmax(7rem, 1.5fr) repeat(6, minmax(3.4rem, 1fr));
  min-width: 33rem;
  gap: 1px;
}

.page-about .about-matrix > * {
  background: var(--w28-deep);
  padding: .6rem .35rem;
  font-size: .72rem;
  text-align: center;
  color: rgba(245, 241, 232, .82);
}

.page-about .about-matrix__corner,
.page-about .about-matrix__head {
  font-family: var(--w28-font-mono);
  letter-spacing: .06em;
  color: var(--w28-gray);
  background: var(--w28-panel);
}

.page-about .about-matrix__corner {
  text-align: left;
  padding-left: .8rem;
}

.page-about .about-matrix__row {
  text-align: left;
  padding-left: .8rem;
  font-weight: 600;
  background: rgba(16, 42, 68, .8);
}

.page-about .about-matrix__cell {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 2.5rem;
}

.page-about .about-matrix__dot {
  display: none;
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  background: var(--w28-gray);
}

.page-about .about-matrix__cell.is-on .about-matrix__dot {
  display: block;
}

.page-about .about-matrix__cell .about-matrix__dot { background: var(--w28-gray); }
.page-about .about-matrix__cell.c-cyan .about-matrix__dot { background: var(--w28-cyan); box-shadow: 0 0 0 3px rgba(44, 232, 224, .16); }
.page-about .about-matrix__cell.c-ice .about-matrix__dot { background: var(--w28-ice); box-shadow: 0 0 0 3px rgba(139, 184, 217, .16); }
.page-about .about-matrix__cell.c-amber .about-matrix__dot { background: var(--w28-amber); box-shadow: 0 0 0 3px rgba(242, 166, 90, .16); }

.page-about .about-matrix__cell.is-on:hover {
  background: rgba(30, 66, 102, .55);
}

.page-about .about-matrix__legend {
  margin: 1rem 0 0;
  font-size: .74rem;
  line-height: 1.7;
  color: var(--w28-gray);
}

/* ---------- 资质与认可 ---------- */
.page-about .about-cred__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: .8rem;
}

.page-about .about-cred__item {
  display: grid;
  gap: .4rem;
  padding: 1.05rem 1rem 1.1rem;
  border: 1px solid var(--w28-line);
  border-radius: var(--w28-radius);
  background: linear-gradient(150deg, rgba(16, 42, 68, .72), rgba(8, 26, 43, .72));
  transition: border-color .3s var(--w28-ease);
}

.page-about .about-cred__item:hover {
  border-color: rgba(44, 232, 224, .55);
}

.page-about .about-cred__val {
  font-family: var(--w28-font-mono);
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--w28-paper);
}

.page-about .about-cred__item:nth-child(2) .about-cred__val { color: var(--w28-cyan); }
.page-about .about-cred__item:nth-child(3) .about-cred__val { color: var(--w28-gold); }
.page-about .about-cred__item:nth-child(6) .about-cred__val { color: var(--w28-amber); }

.page-about .about-cred__label {
  font-size: .82rem;
  line-height: 1.7;
  color: rgba(245, 241, 232, .68);
}

/* ---------- 下一步 ---------- */
.page-about .about-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: .8rem;
}

.page-about .about-next__card {
  display: grid;
  gap: .35rem;
  padding: 1.15rem 1.05rem 1.2rem;
  border: 1px solid var(--w28-line);
  border-radius: var(--w28-radius);
  background: linear-gradient(148deg, rgba(16, 42, 68, .85), rgba(8, 26, 43, .85));
  text-decoration: none;
  color: inherit;
  transition: border-color .3s var(--w28-ease), transform .3s var(--w28-ease);
}

.page-about .about-next__card:hover {
  border-color: var(--w28-cyan);
  transform: translateY(-3px);
}

.page-about .about-next__no {
  font-family: var(--w28-font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  color: var(--w28-cyan);
}

.page-about .about-next__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--w28-paper);
}

.page-about .about-next__desc {
  font-size: .84rem;
  line-height: 1.68;
  color: rgba(245, 241, 232, .68);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-about .about-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-cred__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-next__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, .88fr);
    align-items: end;
  }
  .page-about .about-mission {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
  }
  .page-about .about-city {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
  .page-about .about-city--rev .about-city__figure {
    order: 2;
  }
}

@media (min-width: 960px) {
  .page-about .about-timeline {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.4fr);
    align-items: start;
  }
  .page-about .about-timeline__figure {
    position: sticky;
    top: 6.5rem;
  }
}

@media (min-width: 1100px) {
  .page-about .about-roles {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-cred__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-role,
  .page-about .about-cred__item,
  .page-about .about-next__card {
    transition: none;
  }
  .page-about .about-role:hover,
  .page-about .about-next__card:hover {
    transform: none;
  }
}