.page-about {
  --about-tl-year: 150px;
  --about-radius: 2px;
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
  padding-bottom: clamp(40px, 6vw, 84px);
}

.page-about .about-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  line-height: 1.2;
  font-weight: 900;
  margin: 0 0 16px;
  color: var(--paper);
}

.page-about .eyebrow {
  font-family: var(--font-data);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(16px, 3vw, 32px) 0 clamp(30px, 5vw, 58px);
  border-bottom: 2px solid var(--ink-3);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -34%;
  right: -16%;
  width: 46%;
  height: 176%;
  background: linear-gradient(160deg, rgba(255, 107, 26, 0.16), rgba(47, 125, 255, 0.07) 58%, transparent 82%);
  transform: skewX(-14deg);
  pointer-events: none;
}

.page-about .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(20px, 3.5vw, 36px);
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
  align-items: end;
}

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.2vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 10px 0 18px;
  color: var(--paper);
  max-width: 20ch;
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 56ch;
  font-size: clamp(0.98rem, 1.5vw, 1.1rem);
  line-height: 1.8;
  color: rgba(247, 243, 234, 0.84);
}

/* 档案卡 */
.page-about .about-stamp {
  position: relative;
  background: var(--ink-2);
  border: 3px solid var(--orange);
  padding: clamp(18px, 3vw, 26px);
  transform: rotate(-1.2deg);
  box-shadow: 10px 10px 0 rgba(255, 107, 26, 0.2);
}

.page-about .about-stamp__kicker {
  margin: 0 0 10px;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--steel);
}

.page-about .about-stamp__since {
  margin: 0;
  font-family: var(--font-data);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--orange);
}

.page-about .about-stamp__since span {
  display: block;
  font-family: var(--font-display);
  font-size: 0.86rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--paper);
  margin-bottom: 4px;
}

.page-about .about-stamp__list {
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 16px;
}

.page-about .about-stamp__list > div {
  border-top: 1px solid var(--steel-2);
  padding-top: 8px;
}

.page-about .about-stamp__list dt {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--steel);
  margin-bottom: 5px;
}

.page-about .about-stamp__list dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 1.02rem;
  color: var(--paper);
}

/* ---------- 起点 ---------- */
.page-about .about-origin {
  padding: clamp(34px, 6vw, 76px) 0;
}

.page-about .about-origin__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-about .about-origin__text p {
  margin: 0 0 16px;
  font-size: clamp(0.96rem, 1.4vw, 1.04rem);
  line-height: 1.85;
  color: rgba(247, 243, 234, 0.82);
}

.page-about .about-origin__pull {
  margin: 26px 0 0;
  padding: 16px 0 16px 20px;
  border-left: 4px solid var(--orange);
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  line-height: 1.6;
  color: var(--orange-2);
}

.page-about .about-figure {
  margin: 0;
  border: 2px solid var(--steel-2);
  background: var(--ink-2);
  overflow: hidden;
}

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

.page-about .about-figure__cap {
  padding: 10px 14px;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--steel);
  border-top: 1px solid var(--steel-2);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  padding: clamp(34px, 6vw, 76px) 0;
  background: var(--ink-2);
  border-top: 2px solid var(--ink-3);
  border-bottom: 2px solid var(--ink-3);
}

.page-about .about-timeline .section-head {
  margin-bottom: clamp(26px, 4vw, 44px);
}

.page-about .timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 24px;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(to bottom, var(--orange) 0%, var(--ink-3) 46%, var(--steel-2) 100%);
}

.page-about .timeline__item {
  position: relative;
  padding-bottom: clamp(22px, 3.6vw, 34px);
}

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

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 10px;
  width: 9px;
  height: 9px;
  background: var(--orange);
  border: 2px solid var(--ink-2);
  box-sizing: content-box;
}

.page-about .timeline__year {
  margin: 0 0 6px;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(1.45rem, 4.4vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--orange);
}

.page-about .timeline__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
  font-weight: 900;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .timeline__body p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(247, 243, 234, 0.78);
  max-width: 62ch;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  padding: clamp(34px, 6vw, 76px) 0;
  background: var(--paper);
  color: var(--ink);
}

.page-about .about-team .section-head__title {
  color: var(--ink);
}

.page-about .about-team__intro {
  margin: 12px 0 0;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--steel-2);
  max-width: 60ch;
}

.page-about .about-team__grid {
  margin-top: clamp(22px, 3.5vw, 38px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .crew {
  background: #FFFDF7;
  border: 2px solid var(--ink);
  border-radius: var(--about-radius);
  padding: clamp(16px, 2.6vw, 24px);
  box-shadow: 6px 6px 0 var(--steel-2);
  transition: transform var(--dur) ease, box-shadow var(--dur) ease;
}

.page-about .crew:hover {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--orange-deep);
}

.page-about .crew__no {
  margin: 0 0 10px;
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--orange-deep);
}

.page-about .crew__name {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 900;
  line-height: 1.4;
  color: var(--ink);
}

.page-about .crew p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.8;
  color: var(--steel-2);
}

.page-about .crew__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0 0;
  padding: 0;
}

.page-about .crew__tags li {
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border: 1px solid var(--steel);
  color: var(--steel-2);
}

.page-about .about-figure--team {
  margin-top: clamp(24px, 4vw, 40px);
  border-color: var(--ink-3);
}

.page-about .about-figure--team .about-figure__cap {
  border-top-color: rgba(12, 42, 32, 0.16);
  color: var(--steel-2);
}

/* ---------- 区域覆盖 ---------- */
.page-about .about-reach {
  padding: clamp(34px, 6vw, 76px) 0;
}

.page-about .about-reach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
}

.page-about .about-reach__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--steel-2);
  border: 2px solid var(--steel-2);
}

.page-about .reach-stat {
  background: var(--ink-3);
  padding: clamp(16px, 2.6vw, 24px) clamp(12px, 2vw, 18px);
}

.page-about .reach-stat__num {
  margin: 0 0 6px;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: clamp(1.9rem, 5.4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--orange);
}

.page-about .reach-stat__label {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: rgba(247, 243, 234, 0.74);
}

.page-about .about-reach__text p {
  margin: 0 0 16px;
  font-size: clamp(0.95rem, 1.4vw, 1.03rem);
  line-height: 1.85;
  color: rgba(247, 243, 234, 0.82);
}

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

.page-about .about-figure--reach {
  margin-top: clamp(24px, 4vw, 40px);
}

/* ---------- 合作生态 ---------- */
.page-about .about-eco {
  padding: clamp(34px, 6vw, 76px) 0;
  background: var(--paper);
  color: var(--ink);
}

.page-about .about-eco .section-head__title {
  color: var(--ink);
}

.page-about .about-eco__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(18px, 3vw, 28px) 0 clamp(18px, 3vw, 26px);
}

.page-about .filter-btn {
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  padding: 8px 14px;
  background: transparent;
  color: var(--steel-2);
  border: 2px solid var(--steel-2);
  cursor: pointer;
  transition: background var(--dur) ease, color var(--dur) ease, border-color var(--dur) ease;
}

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

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

.page-about .about-eco__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .partner {
  position: relative;
  border: 2px solid var(--ink);
  background: #FFFDF7;
  padding: clamp(16px, 2.6vw, 24px);
  box-shadow: 6px 6px 0 rgba(12, 42, 32, 0.14);
}

.page-about .partner.is-hidden {
  display: none;
}

.page-about .partner__count {
  margin: 0 0 8px;
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--orange-deep);
}

.page-about .partner__name {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 900;
  color: var(--ink);
}

.page-about .partner p {
  margin: 0 0 14px;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--steel-2);
}

.page-about .about-honor {
  margin-top: clamp(26px, 4vw, 42px);
  border-top: 2px solid var(--ink);
  padding-top: clamp(18px, 3vw, 26px);
}

.page-about .about-honor__label {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--orange-deep);
}

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

.page-about .about-honor__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--ink);
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(12, 42, 32, 0.16);
}

.page-about .about-honor__list span {
  font-family: var(--font-data);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--orange-deep);
  min-width: 72px;
}

/* ---------- 服务原则 ---------- */
.page-about .about-principles {
  padding: clamp(34px, 6vw, 76px) 0;
}

.page-about .about-principles__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .creed {
  margin: 0;
  padding: clamp(16px, 2.6vw, 24px);
  border: 2px solid var(--ink-3);
  border-left: 5px solid var(--orange);
  background: var(--ink-2);
}

.page-about .creed__text {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  font-weight: 900;
  line-height: 1.45;
  color: var(--paper);
}

.page-about .creed__note {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(247, 243, 234, 0.74);
}

/* ---------- 下一步 ---------- */
.page-about .about-next {
  margin-top: clamp(30px, 5vw, 56px);
  padding: clamp(20px, 3.6vw, 34px);
  border: 3px solid var(--orange);
  background: var(--ink-2);
  box-shadow: 10px 10px 0 rgba(255, 107, 26, 0.16);
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 30px);
}

.page-about .about-next__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  font-weight: 900;
  line-height: 1.3;
  color: var(--paper);
}

.page-about .about-next__text p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: rgba(247, 243, 234, 0.8);
  max-width: 58ch;
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: start;
}

.page-about .about-next__actions .btn {
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-about .about-team__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .crew--wide {
    grid-column: span 2;
  }

  .page-about .about-reach__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-about .about-eco__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-principles__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-next {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-about .timeline {
    padding-left: 0;
  }

  .page-about .timeline::before {
    left: calc(var(--about-tl-year) + 18px);
  }

  .page-about .timeline__item {
    display: grid;
    grid-template-columns: var(--about-tl-year) minmax(0, 1fr);
    gap: 36px;
    padding-bottom: clamp(26px, 3.4vw, 40px);
  }

  .page-about .timeline__item::before {
    left: calc(var(--about-tl-year) + 14px);
    top: 12px;
  }

  .page-about .timeline__year {
    text-align: right;
    margin-bottom: 0;
    padding-top: 2px;
  }

  .page-about .timeline__item:nth-child(even) .timeline__body {
    margin-left: 18px;
  }

  .page-about .about-hero__title {
    font-size: clamp(2.6rem, 4.6vw, 4.2rem);
  }

  .page-about .about-reach__stats {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .about-eco__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-eco__list .partner:nth-child(2) {
    margin-top: 20px;
  }

  .page-about .about-eco__list .partner:nth-child(4) {
    margin-top: 20px;
  }
}

@media (min-width: 1100px) {
  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(32px, 4vw, 60px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .crew,
  .page-about .filter-btn {
    transition: none;
  }

  .page-about .crew:hover {
    transform: none;
  }
}
<<<END>>>