.page-about {
  --about-gap: clamp(1.25rem, 3vw, 2.5rem);
  --about-pad-y: clamp(3.25rem, 8vw, 6.5rem);
  --about-rule: rgba(20, 18, 16, 0.14);
  --about-rule-light: rgba(244, 239, 230, 0.16);
  display: block;
  background: var(--navy);
}

/* ---------- 通用标题与文字 ---------- */
.page-about .about-h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.7rem, 4.6vw, 2.9rem);
  line-height: 1.06;
  letter-spacing: 0.01em;
  margin: 0.45rem 0 1rem;
  color: var(--ink);
}
.page-about .about-h2--light {
  color: var(--cream);
}
.page-about .kicker {
  color: var(--signal);
}
.page-about .about-reach__kicker,
.page-about .about-partners__kicker {
  color: var(--volt);
}

/* ---------- 01 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  background: var(--navy-deep);
}
.page-about .about-hero__frame {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: clamp(470px, 64vh, 700px);
  padding-block: clamp(2rem, 6vw, 3.75rem);
  overflow: hidden;
}
.page-about .about-hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 38%;
  z-index: 0;
  filter: saturate(0.72) contrast(1.06);
}
.page-about .about-hero__scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(18, 27, 38, 0.74) 0%, rgba(28, 42, 57, 0.46) 40%, rgba(18, 27, 38, 0.94) 100%),
    repeating-linear-gradient(135deg, rgba(183, 255, 42, 0.05) 0 2px, transparent 2px 9px);
}
.page-about .about-hero__overlay {
  position: relative;
  z-index: 2;
  width: 100%;
}
.page-about .about-hero__crumb ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 0 0 clamp(1.25rem, 4vw, 2.5rem);
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.page-about .about-hero__crumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: rgba(244, 239, 230, 0.42);
}
.page-about .about-hero__crumb a {
  color: rgba(244, 239, 230, 0.72);
  text-decoration: none;
}
.page-about .about-hero__crumb a:hover {
  color: var(--volt);
}
.page-about .about-hero__crumb [aria-current="page"] {
  color: var(--signal);
}
.page-about .about-hero__kicker {
  color: var(--volt);
  margin: 0;
}
.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.15rem, 7.4vw, 5.2rem);
  line-height: 0.99;
  letter-spacing: 0.01em;
  color: var(--cream);
  margin: 0.7rem 0 1.1rem;
  max-width: 22ch;
  text-shadow: 0 2px 26px rgba(0, 0, 0, 0.42);
}
.page-about .about-hero__lead {
  max-width: 60ch;
  font-size: clamp(0.98rem, 1.6vw, 1.12rem);
  line-height: 1.75;
  color: rgba(244, 239, 230, 0.86);
  margin: 0;
}
.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: clamp(1.5rem, 4vw, 2.4rem) 0 clamp(2rem, 5vw, 3rem);
}
.page-about .about-hero__stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding-left: 0.9rem;
  border-left: 2px solid var(--signal);
}
.page-about .about-hero__num {
  color: var(--volt);
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  line-height: 1;
}
.page-about .about-hero__stat-label {
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: rgba(244, 239, 230, 0.68);
}

/* ---------- 02 品牌起源 ---------- */
.page-about .about-ethos {
  padding-block: var(--about-pad-y);
}
.page-about .about-ethos__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}
.page-about .about-ethos__aside {
  display: flex;
  align-items: flex-start;
  gap: clamp(0.9rem, 2vw, 1.5rem);
}
.page-about .about-ethos__num {
  font-size: clamp(3rem, 9vw, 5.5rem);
  line-height: 0.82;
  color: var(--mil-green);
  opacity: 0.35;
}
.page-about .about-ethos__note {
  color: var(--signal);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.24em;
  writing-mode: vertical-rl;
  min-height: 5.5rem;
}
.page-about .about-ethos__prose p {
  margin: 0 0 1.05rem;
  font-size: clamp(0.97rem, 1.5vw, 1.06rem);
  line-height: 1.85;
  color: #2b2721;
  max-width: 68ch;
}
.page-about .about-ethos__prose p:last-child {
  margin-bottom: 0;
}
.page-about .about-ethos__points {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.25rem) 0 0;
  padding: clamp(1.1rem, 3vw, 1.6rem) 0 0;
  border-top: 1px solid var(--about-rule);
  display: grid;
  gap: 0.7rem;
}
.page-about .about-ethos__points li {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  font-size: 0.94rem;
  line-height: 1.6;
  color: #3a342c;
}
.page-about .about-ethos__mark {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 0.32rem;
  background: var(--signal);
  transform: rotate(45deg);
}

/* ---------- 03 内容体系 ---------- */
.page-about .about-system {
  padding-block: var(--about-pad-y);
}
.page-about .about-system__kicker {
  color: var(--volt);
}
.page-about .about-system__intro {
  max-width: 62ch;
  margin: 0 0 clamp(1.5rem, 4vw, 2.5rem);
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  line-height: 1.8;
  color: rgba(244, 239, 230, 0.78);
}
.page-about .about-system__tablist {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.65rem;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.page-about .about-system__tab {
  flex: 0 0 auto;
  appearance: none;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.68rem 1.05rem;
  border: 1px solid var(--about-rule-light);
  background: transparent;
  color: rgba(244, 239, 230, 0.76);
  cursor: pointer;
  transition: background 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease);
}
.page-about .about-system__tab:hover {
  border-color: var(--volt);
  color: var(--volt);
}
.page-about .about-system__tab:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 2px;
}
.page-about .about-system__tab[aria-selected="true"] {
  background: var(--signal);
  border-color: var(--signal);
  color: #1a1310;
  font-weight: 700;
}
.page-about .about-system__panel {
  margin-top: 1.1rem;
  padding: clamp(1.35rem, 3.6vw, 2.35rem);
  background: rgba(244, 239, 230, 0.045);
  border: 1px solid var(--about-rule-light);
  border-left: 3px solid var(--signal);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset;
}
.page-about .about-system__panel[hidden] {
  display: none;
}
.page-about .about-system__panel-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  letter-spacing: 0.01em;
  color: var(--cream);
  margin: 0 0 0.85rem;
}
.page-about .about-system__panel p {
  max-width: 66ch;
  margin: 0 0 1.1rem;
  font-size: 0.98rem;
  line-height: 1.85;
  color: rgba(244, 239, 230, 0.82);
}
.page-about .about-system__list {
  list-style: none;
  margin: 0 0 1.35rem;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}
.page-about .about-system__list li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.92rem;
  line-height: 1.65;
  color: rgba(244, 239, 230, 0.72);
}
.page-about .about-system__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 12px;
  height: 2px;
  background: var(--volt);
}
.page-about .about-system__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 53, 0.5);
  padding-bottom: 2px;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}
.page-about .about-system__link:hover {
  color: var(--volt);
  border-color: var(--volt);
}

/* ---------- 04 发展历程 ---------- */
.page-about .about-timeline {
  padding-top: var(--about-pad-y);
  padding-bottom: var(--about-pad-y);
}
.page-about .about-timeline__intro {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  line-height: 1.8;
  color: #4a443b;
}
.page-about .about-timeline__scroller {
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  padding: clamp(1.5rem, 4vw, 2.5rem) clamp(1.25rem, 5vw, 3rem) 1.75rem;
  scrollbar-width: thin;
}
.page-about .about-timeline__scroller:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}
.page-about .about-timeline__list {
  display: flex;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: max-content;
}
.page-about .about-timeline__item {
  flex: 0 0 min(76vw, 300px);
  scroll-snap-align: start;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.5rem 1.25rem 1.7rem;
  background: var(--white);
  border: 1px solid var(--about-rule);
  border-top: 3px solid var(--mil-green);
  box-shadow: 0 1px 0 rgba(20, 18, 16, 0.05), 0 18px 34px -30px rgba(20, 18, 16, 0.55);
}
.page-about .about-timeline__stage {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal-dark);
}
.page-about .about-timeline__num {
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1;
  color: var(--mil-green);
}
.page-about .about-timeline__item h3 {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}
.page-about .about-timeline__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: #4f483e;
}
.page-about .about-timeline__figure {
  margin: clamp(1.75rem, 4vw, 3rem) 0 0;
  aspect-ratio: 10 / 7;
  overflow: hidden;
  border: 1px solid var(--about-rule);
}
.page-about .about-timeline__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.78) contrast(1.05);
}

/* ---------- 05 服务覆盖 ---------- */
.page-about .about-reach {
  padding-block: var(--about-pad-y);
}
.page-about .about-reach__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3.25rem);
}
.page-about .about-reach__text {
  max-width: 58ch;
  margin: 0 0 1.5rem;
  font-size: clamp(0.96rem, 1.5vw, 1.05rem);
  line-height: 1.85;
  color: rgba(244, 239, 230, 0.84);
}
.page-about .about-reach__link {
  color: var(--cream);
  border-color: rgba(244, 239, 230, 0.4);
}
.page-about .about-reach__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(244, 239, 230, 0.2);
  border: 1px solid rgba(244, 239, 230, 0.2);
}
.page-about .about-reach__stat {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: clamp(1rem, 3vw, 1.5rem) clamp(0.85rem, 2.4vw, 1.25rem);
  background: var(--mil-green-deep);
}
.page-about .about-reach__num {
  font-size: clamp(1.35rem, 3.4vw, 2rem);
  line-height: 1;
  color: var(--volt);
}
.page-about .about-reach__label {
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: rgba(244, 239, 230, 0.7);
}

/* ---------- 06 团队与流程 ---------- */
.page-about .about-team {
  padding-block: var(--about-pad-y);
}
.page-about .about-team__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: start;
}
.page-about .about-team__figure {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--about-rule);
  box-shadow: 0 1px 0 rgba(20, 18, 16, 0.05), 0 22px 40px -34px rgba(20, 18, 16, 0.6);
}
.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.75) contrast(1.08);
}
.page-about .about-team__text {
  max-width: 58ch;
  margin: 0 0 clamp(1.5rem, 4vw, 2.25rem);
  font-size: clamp(0.96rem, 1.5vw, 1.05rem);
  line-height: 1.85;
  color: #4a443b;
}
.page-about .about-team__flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--about-rule);
  border: 1px solid var(--about-rule);
}
.page-about .about-team__step {
  position: relative;
  padding: 1.1rem 1.15rem 1.2rem 3.1rem;
  background: var(--cream);
}
.page-about .about-team__step-index {
  position: absolute;
  left: 1.05rem;
  top: 1.05rem;
  font-family: var(--font-mono);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--signal);
}
.page-about .about-team__step h3 {
  margin: 0 0 0.35rem;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--ink);
}
.page-about .about-team__step p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: #4f483e;
}

/* ---------- 07 合作生态 ---------- */
.page-about .about-partners {
  padding-block: var(--about-pad-y);
}
.page-about .about-partners__intro {
  max-width: 62ch;
  margin: 0 0 clamp(1.5rem, 4vw, 2.5rem);
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  line-height: 1.85;
  color: rgba(244, 239, 230, 0.78);
}
.page-about .about-partners__grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1fr);
}
.page-about .about-partners__card {
  padding: clamp(1.25rem, 3vw, 1.85rem);
  border-left: 3px solid var(--mil-green);
}
.page-about .about-partners__num {
  display: block;
  font-size: clamp(1.9rem, 5vw, 2.7rem);
  line-height: 1;
  color: var(--volt);
  margin-bottom: 0.65rem;
}
.page-about .about-partners__card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--cream);
}
.page-about .about-partners__card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(244, 239, 230, 0.72);
}

/* ---------- 08 下一步 ---------- */
.page-about .about-close {
  padding-block: var(--about-pad-y);
}
.page-about .about-close__inner {
  display: grid;
  gap: 0.85rem;
}
.page-about .about-close__text {
  margin: 0;
  max-width: 52ch;
  font-size: clamp(0.96rem, 1.5vw, 1.05rem);
  line-height: 1.8;
  color: #4a443b;
}
.page-about .about-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(0.75rem, 2vw, 1.25rem);
}
.page-about .about-close__actions .btn {
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .about-partners__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .about-team__flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .about-ethos__grid {
    grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
    gap: clamp(2rem, 6vw, 4.5rem);
  }
  .page-about .about-ethos__aside {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: clamp(2rem, 5vw, 3.5rem);
  }
  .page-about .about-system__tablist {
    flex-wrap: wrap;
    overflow-x: visible;
    padding-bottom: 0;
  }
  .page-about .about-timeline__item {
    flex-basis: 320px;
  }
}

@media (min-width: 1100px) {
  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: center;
    gap: clamp(2.5rem, 6vw, 5rem);
  }
  .page-about .about-partners__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-close__inner {
    grid-template-columns: minmax(0, 1fr);
    max-width: 72ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-system__tab {
    transition: none;
  }
}
<<<END>>>