.page-about {
  --about-hair: rgba(34, 26, 20, .12);
  --about-cut: 16px;
  padding-bottom: clamp(40px, 7vw, 96px);
}

.page-about .page-about__crumb {
  padding-top: clamp(16px, 3vw, 30px);
  padding-bottom: clamp(6px, 1.6vw, 14px);
}

/* ---------- 开场 ---------- */
.page-about .page-about__open {
  padding-top: clamp(6px, 1.6vw, 16px);
  padding-bottom: clamp(44px, 7vw, 92px);
}

.page-about .page-about__open-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

@media (min-width: 920px) {
  .page-about .page-about__open-grid {
    grid-template-columns: minmax(0, 6.2fr) minmax(0, 3.8fr);
    align-items: end;
    gap: clamp(32px, 5vw, 72px);
  }
}

.page-about .page-about__open-main {
  position: relative;
  padding-left: clamp(0px, 2.2vw, 26px);
}

.page-about .page-about__open-main::before {
  content: "";
  position: absolute;
  left: 0;
  top: .3em;
  bottom: .35em;
  width: 4px;
  background: linear-gradient(180deg, var(--lark), var(--yellow) 62%, var(--ember));
  display: none;
}

@media (min-width: 700px) {
  .page-about .page-about__open-main::before { display: block; }
}

.page-about .page-about__h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 5.6vw, 62px);
  line-height: 1.08;
  letter-spacing: -.012em;
  margin: .22em 0 0;
  max-width: 18em;
}

.page-about .page-about__open-side .lede {
  margin: 0 0 22px;
}

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

.page-about .page-about__fact {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--about-hair);
}

.page-about .page-about__fact-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--ember);
  line-height: 1;
  min-width: 2.4em;
}

.page-about .page-about__fact-label {
  font-size: 14px;
  color: var(--ink-70);
}

/* ---------- 通栏标题 ---------- */
.page-about .page-about__h2 {
  font-family: var(--font-display);
  font-size: clamp(23px, 3.6vw, 40px);
  line-height: 1.22;
  letter-spacing: -.01em;
  margin: 0 0 20px;
  max-width: 24em;
}

/* ---------- 我们在做什么 ---------- */
.page-about .page-about__what {
  padding-top: clamp(36px, 6vw, 76px);
  padding-bottom: clamp(36px, 6vw, 76px);
}

.page-about .page-about__what-cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2.6vw, 34px);
}

@media (min-width: 860px) {
  .page-about .page-about__what-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .page-about__what-cols .prose {
  margin: 0;
}

.page-about .page-about__inline-links {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
}

.page-about .page-about__inline-links a {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: var(--velvet);
  text-decoration: none;
  border-bottom: 2px solid var(--yellow);
  padding-bottom: 3px;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}

.page-about .page-about__inline-links a:hover {
  color: var(--ember);
  border-color: var(--ember);
}

/* ---------- 发展历程 ---------- */
.page-about .page-about__timeline {
  background: var(--velvet);
  color: var(--paper);
  padding-top: clamp(40px, 6vw, 84px);
  padding-bottom: clamp(40px, 6vw, 84px);
  overflow: hidden;
}

.page-about .page-about__timeline .eyebrow {
  color: var(--yellow);
}

.page-about .page-about__timeline-lede {
  margin: 0 0 clamp(26px, 4vw, 40px);
  max-width: 44em;
  color: var(--paper-70);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
}

.page-about .page-about__timeline-figure {
  margin: 0 0 clamp(30px, 4.5vw, 52px);
}

.page-about .page-about__timeline-figure .figure__frame {
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
  aspect-ratio: 14 / 5;
  background: rgba(246, 239, 221, .08);
}

.page-about .page-about__timeline-figure .figure__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .page-about__timeline-figure .figure__caption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--paper-70);
}

.page-about .page-about__rail {
  list-style: none;
  margin: 0;
  padding: 28px 2px 14px;
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid var(--line-paper);
}

.page-about .page-about__rail::-webkit-scrollbar {
  height: 6px;
}

.page-about .page-about__rail::-webkit-scrollbar-track {
  background: rgba(246, 239, 221, .1);
}

.page-about .page-about__rail::-webkit-scrollbar-thumb {
  background: rgba(246, 239, 221, .34);
}

.page-about .page-about__node {
  flex: 0 0 min(74vw, 264px);
  scroll-snap-align: start;
  position: relative;
  padding: 20px 18px 26px;
  background: rgba(246, 239, 221, .07);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: background .3s var(--ease), transform .35s var(--ease);
}

.page-about .page-about__node::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lark), var(--yellow));
  opacity: .72;
}

.page-about .page-about__node:hover {
  background: rgba(246, 239, 221, .13);
  transform: translateY(-4px);
}

.page-about .page-about__node-ver {
  display: block;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--yellow);
  margin-bottom: 12px;
}

.page-about .page-about__node-title {
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.4;
  margin: 0 0 10px;
  color: var(--paper);
}

.page-about .page-about__node p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper-70);
}

/* ---------- 团队构成 ---------- */
.page-about .page-about__team {
  padding-top: clamp(44px, 6.5vw, 88px);
  padding-bottom: clamp(44px, 6.5vw, 88px);
}

.page-about .page-about__team-lede {
  margin: 0 0 clamp(26px, 4vw, 44px);
}

.page-about .page-about__team-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 46px);
}

@media (min-width: 980px) {
  .page-about .page-about__team-grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
    align-items: start;
  }
}

.page-about .page-about__team-figure {
  margin: 0;
}

.page-about .page-about__team-figure .figure__frame {
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

.page-about .page-about__team-figure .figure__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .page-about__team-figure .figure__caption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--ink-45);
}

.page-about .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.page-about .filter-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  padding: 9px 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}

.page-about .filter-btn:hover {
  border-color: var(--lark);
  color: var(--lark);
}

.page-about .filter-btn[aria-pressed="true"],
.page-about .filter-btn.is-active {
  background: var(--velvet);
  border-color: var(--velvet);
  color: var(--paper);
}

.page-about .filter-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-45);
  margin-left: auto;
}

.page-about .page-about__team-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 28px;
}

@media (min-width: 720px) {
  .page-about .page-about__team-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .page-about__team-card:nth-child(even) {
    transform: translateY(20px);
  }
}

.page-about .page-about__team-card {
  position: relative;
  background: var(--float);
  border: 1px solid var(--line);
  border-left-width: 5px;
  border-left-style: solid;
  border-left-color: var(--lark);
  box-shadow: 0 18px 32px -28px rgba(11, 43, 34, .8);
  padding: 20px 18px 22px;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: transform .32s var(--ease), box-shadow .32s var(--ease);
}

.page-about .page-about__team-card:nth-child(1) { border-left-color: var(--lark); }
.page-about .page-about__team-card:nth-child(2) { border-left-color: var(--yellow); }
.page-about .page-about__team-card:nth-child(3) { border-left-color: var(--neon); }
.page-about .page-about__team-card:nth-child(4) { border-left-color: var(--ember); }

.page-about .page-about__team-card:hover {
  box-shadow: 0 26px 40px -26px rgba(11, 43, 34, .55);
}

@media (min-width: 720px) {
  .page-about .page-about__team-card:hover {
    transform: translateY(-5px);
  }
  .page-about .page-about__team-card:nth-child(even):hover {
    transform: translateY(15px);
  }
}

.page-about .page-about__team-num {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--float);
  background: var(--ink);
  padding: 3px 8px;
  margin-bottom: 12px;
}

.page-about .page-about__team-card .card__title {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 0 0 8px;
}

.page-about .page-about__team-card .card__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-70);
}

/* ---------- 制作流程 ---------- */
.page-about .page-about__flow {
  padding-top: clamp(44px, 6.5vw, 88px);
  padding-bottom: clamp(44px, 6.5vw, 88px);
  background: var(--mist);
}

.page-about .page-about__flow-lede {
  margin: 0 0 clamp(24px, 3.4vw, 36px);
}

.page-about .page-about__steps-nav {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 12px;
  -webkit-overflow-scrolling: touch;
}

.page-about .step-btn {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  padding: 11px 16px;
  border: 1px solid rgba(34, 26, 20, .24);
  background: rgba(255, 255, 255, .6);
  color: var(--ink);
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  transition: background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
}

.page-about .step-btn:hover {
  border-color: var(--lark);
  color: var(--lark);
}

.page-about .step-btn[aria-selected="true"],
.page-about .step-btn.is-active {
  background: var(--velvet);
  border-color: var(--velvet);
  color: var(--paper);
}

.page-about .page-about__step {
  margin-top: 12px;
  background: var(--float);
  border-left: 5px solid var(--lark);
  padding: clamp(20px, 3vw, 30px) clamp(18px, 3vw, 34px);
  box-shadow: 0 20px 38px -32px rgba(11, 43, 34, .85);
}

.page-about .page-about__step h3 {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 22px);
  margin: 0 0 12px;
}

.page-about .page-about__step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-70);
  max-width: 46em;
}

.page-about .page-about__flow-figure {
  margin: clamp(30px, 4vw, 48px) 0 0;
}

.page-about .page-about__flow-figure .figure__frame {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  aspect-ratio: 5 / 3;
  overflow: hidden;
  background: rgba(255, 255, 255, .55);
}

.page-about .page-about__flow-figure .figure__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-about .page-about__flow-figure .figure__caption {
  margin-top: 12px;
  font-size: 13px;
  color: var(--ink-45);
}

/* ---------- 服务范围 ---------- */
.page-about .page-about__reach {
  padding-top: clamp(44px, 6.5vw, 88px);
  padding-bottom: clamp(44px, 6.5vw, 88px);
}

.page-about .page-about__reach-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

@media (min-width: 680px) {
  .page-about .page-about__reach-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

.page-about .page-about__reach-card {
  background: var(--float);
  border: 1px solid var(--line);
  border-top: 6px solid var(--lark);
  padding: 22px 18px 26px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: transform .32s var(--ease);
}

.page-about .page-about__reach-card:hover {
  transform: translateY(-5px);
}

.page-about .page-about__reach-card--yellow { border-top-color: var(--yellow); }
.page-about .page-about__reach-card--neon { border-top-color: var(--neon); }
.page-about .page-about__reach-card--ember { border-top-color: var(--ember); }

.page-about .page-about__reach-num {
  display: block;
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 700;
  line-height: 1;
  color: var(--lark);
  margin-bottom: 14px;
}

.page-about .page-about__reach-card--yellow .page-about__reach-num { color: #B8860B; }
.page-about .page-about__reach-card--neon .page-about__reach-num { color: var(--neon); }
.page-about .page-about__reach-card--ember .page-about__reach-num { color: var(--ember); }

.page-about .page-about__reach-card h3 {
  font-family: var(--font-display);
  font-size: 16px;
  margin: 0 0 10px;
}

.page-about .page-about__reach-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-70);
}

/* ---------- 行业认可 ---------- */
.page-about .page-about__awards {
  padding-top: clamp(44px, 6.5vw, 88px);
  padding-bottom: clamp(44px, 6.5vw, 88px);
}

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

.page-about .page-about__award {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.page-about .page-about__award:last-child {
  border-bottom: 1px solid var(--line);
}

@media (min-width: 820px) {
  .page-about .page-about__award {
    grid-template-columns: 108px minmax(0, 1fr) auto;
    align-items: center;
    gap: 26px;
  }
}

.page-about .page-about__award-year {
  font-size: 22px;
  font-weight: 700;
  color: var(--ember);
  letter-spacing: .04em;
}

.page-about .page-about__award-body h3 {
  font-family: var(--font-display);
  font-size: 17px;
  margin: 0 0 6px;
}

.page-about .page-about__award-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-about .page-about__award .tag {
  justify-self: start;
}

.page-about .page-about__awards-note {
  margin: clamp(24px, 3vw, 34px) 0 0;
  font-size: 13px;
  line-height: 1.9;
  color: var(--ink-45);
  font-family: var(--font-mono);
}

/* ---------- 联系与合作 ---------- */
.page-about .page-about__contact {
  padding-top: clamp(40px, 6vw, 76px);
  padding-bottom: clamp(20px, 3vw, 40px);
}

.page-about .page-about__contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 6px solid var(--lark);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
  padding: clamp(26px, 4vw, 48px);
}

@media (min-width: 900px) {
  .page-about .page-about__contact-panel {
    grid-template-columns: minmax(0, 6.4fr) minmax(0, 3.6fr);
    align-items: center;
  }
}

.page-about .page-about__contact-list {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .page-about__contact-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
}

.page-about .page-about__contact-tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 2px 8px;
  background: var(--mist);
  color: var(--velvet);
}

.page-about .page-about__contact-cta {
  background: var(--velvet);
  color: var(--paper);
  padding: clamp(22px, 3vw, 32px);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-about .page-about__contact-cta p {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper-70);
}

.page-about .page-about__tail-links {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: clamp(20px, 3vw, 26px) 0 0;
  border-top: 1px dashed var(--about-hair);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
}

.page-about .page-about__tail-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-70);
  text-decoration: none;
  transition: color .24s var(--ease);
}

.page-about .page-about__tail-links a:hover {
  color: var(--lark);
}

@media (max-width: 480px) {
  .page-about .page-about__fact-num {
    font-size: 20px;
  }
  .page-about .filter-count {
    margin-left: 0;
  }
}
<<<END>>>