.page-about {
  --about-radius: 2px;
  background: var(--cream);
  color: var(--brown);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  overflow-x: hidden;
}

.page-about .container {
  width: min(100% - 40px, var(--maxw));
  margin-inline: auto;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.18;
  color: var(--brown);
}

.page-about h1 {
  font-size: clamp(32px, 7.4vw, 62px);
}

.page-about h2 {
  font-size: clamp(25px, 4.6vw, 38px);
}

.page-about h3 {
  font-size: 19px;
}

.page-about p {
  max-width: 42em;
}

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

.page-about .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
}

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

/* 面包屑 */
.page-about .about-crumb {
  padding: 20px 0 0;
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--gray);
}

.page-about .breadcrumb__item a {
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .breadcrumb__item a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-about .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 6px;
  color: var(--line);
}

/* 首屏 */
.page-about .about-hero {
  padding: 28px 0 56px;
  background:
    radial-gradient(circle at 92% 4%, rgba(255, 122, 61, 0.16), transparent 52%),
    radial-gradient(circle at 4% 96%, rgba(43, 217, 180, 0.12), transparent 46%),
    var(--cream);
}

.page-about .about-hero__inner {
  display: grid;
  gap: 34px;
}

.page-about .about-hero__lede {
  margin: 20px 0 0;
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--gray);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 28px 0 0;
  padding: 0;
  background: var(--line);
  border: 2px solid var(--ink);
  box-shadow: 8px 8px 0 rgba(11, 27, 58, 0.12);
}

.page-about .about-hero__facts .fact {
  background: var(--paper);
  padding: 14px 16px;
}

.page-about .fact dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-about .fact dd {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.3;
  color: var(--ink);
}

.page-about .about-hero__more {
  margin: 24px 0 0;
}

.page-about .about-hero__visual {
  margin: 0;
}

.page-about .about-hero__visual .img-frame {
  position: relative;
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: 10px 10px 0 rgba(11, 27, 58, 0.16);
}

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

.page-about .about-hero__visual .img-frame__tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  background: var(--ink);
  color: var(--mint);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-about .img-frame__caption {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--gray);
}

/* 为什么叫 365 */
.page-about .about-name {
  padding: 56px 0;
  background: var(--paper);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.page-about .about-name__lede {
  margin: 16px 0 0;
  font-size: 16px;
  color: var(--gray);
}

.page-about .about-name__list {
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  border-top: 2px solid var(--ink);
}

.page-about .name-item {
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .name-item:last-child {
  border-bottom: none;
}

.page-about .name-item__num {
  display: inline-block;
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .name-item h3 {
  margin-bottom: 8px;
  font-size: 21px;
}

.page-about .name-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--gray);
}

/* 时间轴 */
.page-about .about-timeline {
  padding: 58px 0 64px;
  background:
    radial-gradient(circle at 12% 0%, rgba(43, 217, 180, 0.14), transparent 42%),
    radial-gradient(circle at 88% 100%, rgba(255, 122, 61, 0.16), transparent 48%),
    var(--ink);
  color: var(--paper);
}

.page-about .about-timeline h2 {
  color: var(--paper);
}

.page-about .about-timeline .eyebrow {
  color: var(--orange-soft);
}

.page-about .about-timeline__lede {
  margin: 16px 0 0;
  color: rgba(247, 241, 228, 0.78);
  font-size: 15.5px;
}

.page-about .tl {
  position: relative;
  margin: 38px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--orange), rgba(43, 217, 180, 0.45));
}

.page-about .tl__item {
  position: relative;
  padding-left: 42px;
}

.page-about .tl__item::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 22px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--orange);
  box-shadow: 0 0 0 4px var(--ink);
}

.page-about .tl__node {
  border: 2px solid rgba(247, 241, 228, 0.26);
  background: var(--ink-2);
  transition: transform 0.24s var(--ease), box-shadow 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-about .tl__node:hover,
.page-about .tl__node:focus-within {
  border-color: var(--orange);
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 rgba(255, 122, 61, 0.34);
}

.page-about .tl__node[open] {
  border-color: var(--orange);
}

.page-about .tl__summary {
  display: grid;
  gap: 2px;
  padding: 15px 16px;
  list-style: none;
  cursor: pointer;
}

.page-about .tl__summary::-webkit-details-marker {
  display: none;
}

.page-about .tl__idx {
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--orange-soft);
}

.page-about .tl__year {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--mint);
}

.page-about .tl__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  color: var(--paper);
}

.page-about .tl__hint {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1;
  color: rgba(247, 241, 228, 0.55);
}

.page-about .tl__hint::before {
  content: "+";
}

.page-about .tl__node[open] .tl__hint::before {
  content: "–";
}

.page-about .tl__node[open] .tl__hint {
  color: var(--mint);
}

.page-about .tl__desc {
  margin: 0;
  padding: 12px 16px 16px;
  border-top: 1px solid rgba(247, 241, 228, 0.18);
  font-size: 14px;
  line-height: 1.8;
  color: rgba(247, 241, 228, 0.82);
}

.page-about .about-timeline__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid rgba(247, 241, 228, 0.22);
}

.page-about .about-timeline__cta .btn--quiet {
  color: var(--orange-soft);
}

/* 团队 */
.page-about .about-team {
  padding: 58px 0;
  background: var(--cream);
}

.page-about .about-team__grid {
  display: grid;
  gap: 36px;
}

.page-about .about-team__intro p {
  margin: 16px 0 0;
  font-size: 15.5px;
  color: var(--gray);
}

.page-about .about-team__figure {
  margin: 26px 0 0;
}

.page-about .about-team__figure .img-frame {
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: 8px 8px 0 rgba(11, 27, 58, 0.14);
}

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

.page-about .matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 2px solid var(--ink);
  box-shadow: 10px 10px 0 rgba(11, 27, 58, 0.12);
}

.page-about .matrix__cell {
  background: var(--paper);
  padding: 18px 15px 20px;
  transition: background 0.24s var(--ease);
}

.page-about .matrix__cell:hover {
  background: var(--cream);
}

.page-about .matrix__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 8vw, 40px);
  line-height: 1;
  color: var(--ink);
}

.page-about .matrix__unit {
  margin-left: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gray);
}

.page-about .matrix__cell h3 {
  margin: 10px 0 6px;
  font-size: 17px;
  color: var(--ink);
}

.page-about .matrix__cell p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.75;
  color: var(--gray);
}

.page-about .matrix__out {
  margin-top: 12px !important;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  color: var(--brown) !important;
}

.page-about .matrix__out span {
  display: inline-block;
  margin-right: 6px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

/* 覆盖数据 */
.page-about .about-reach {
  padding: 56px 0;
  background: var(--paper);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.page-about .about-reach__lede {
  margin: 16px 0 0;
  font-size: 15.5px;
  color: var(--gray);
}

.page-about .stats {
  display: grid;
  gap: 1px;
  margin-top: 32px;
  background: var(--line);
  border: 2px solid var(--ink);
}

.page-about .stat {
  background: var(--cream);
  padding: 20px 18px;
}

.page-about .stat__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(32px, 9vw, 46px);
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .stat__label {
  display: inline-block;
  margin-top: 8px;
  padding: 2px 8px;
  background: rgba(43, 217, 180, 0.18);
  border: 1px solid rgba(43, 217, 180, 0.5);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: #16705c;
}

.page-about .stat p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

.page-about .industry {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-about .industry li {
  padding: 12px 15px;
  background: var(--cream);
  border-left: 3px solid var(--mint);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--gray);
}

.page-about .industry strong {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--ink);
}

/* 资质 */
.page-about .about-cert {
  padding: 56px 0;
  background: var(--cream);
}

.page-about .about-cert__lede {
  margin: 16px 0 0;
  font-size: 15.5px;
  color: var(--gray);
}

.page-about .cert-wall {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .cert {
  padding: 16px 16px 18px;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: 5px 5px 0 rgba(11, 27, 58, 0.14);
}

.page-about .cert h3 {
  margin: 0 0 7px;
  font-size: 15.5px;
  color: var(--ink);
}

.page-about .cert p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--gray);
}

.page-about .cert--accent {
  background: var(--ink);
  border-color: var(--ink);
}

.page-about .cert--accent h3 {
  color: var(--mint);
}

.page-about .cert--accent p {
  color: rgba(247, 241, 228, 0.8);
}

/* 合作生态 */
.page-about .about-eco {
  padding: 56px 0;
  background:
    radial-gradient(circle at 78% 12%, rgba(43, 217, 180, 0.16), transparent 45%),
    var(--ink);
  color: var(--paper);
}

.page-about .about-eco h2 {
  color: var(--paper);
}

.page-about .about-eco .eyebrow {
  color: var(--orange-soft);
}

.page-about .about-eco__inner {
  display: grid;
  gap: 32px;
}

.page-about .about-eco__copy p {
  margin: 16px 0 0;
  font-size: 15.5px;
  color: rgba(247, 241, 228, 0.8);
}

.page-about .eco-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .eco-list li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid rgba(247, 241, 228, 0.2);
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(247, 241, 228, 0.88);
}

.page-about .eco-list .mono {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange-soft);
}

.page-about .about-eco__figure {
  margin: 0;
}

.page-about .about-eco__figure .img-frame {
  border: 2px solid var(--orange);
  background: var(--ink-2);
  box-shadow: 10px 10px 0 rgba(255, 122, 61, 0.24);
}

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

.page-about .about-eco__figure .img-frame__caption {
  border-top-color: rgba(247, 241, 228, 0.2);
  color: rgba(247, 241, 228, 0.7);
}

/* 响应机制 */
.page-about .about-response {
  padding: 56px 0;
  background: var(--paper);
  border-top: 2px solid var(--ink);
}

.page-about .resp {
  margin-top: 30px;
  border-top: 2px solid var(--ink);
}

.page-about .resp .field-row {
  display: grid;
  gap: 3px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .resp .field-row__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-about .resp .field-row__v {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--brown);
  word-break: break-word;
}

/* 收尾 */
.page-about .about-cta {
  padding: 46px 0;
  background: var(--ink-2);
  color: var(--paper);
}

.page-about .about-cta__inner {
  display: grid;
  gap: 22px;
}

.page-about .about-cta h2 {
  color: var(--paper);
  font-size: clamp(22px, 4.6vw, 30px);
}

.page-about .about-cta__text p {
  margin: 12px 0 0;
  font-size: 15px;
  color: rgba(247, 241, 228, 0.8);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 760px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

  .page-about .resp .field-row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }

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

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 34px 0 72px;
  }

  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 48px;
    align-items: center;
  }

  .page-about .about-name,
  .page-about .about-team,
  .page-about .about-reach,
  .page-about .about-cert,
  .page-about .about-eco,
  .page-about .about-response {
    padding-top: 76px;
    padding-bottom: 76px;
  }

  .page-about .about-name__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: none;
    border-left: 2px solid var(--ink);
  }

  .page-about .name-item {
    padding: 26px 24px;
    border-bottom: none;
    border-right: 1px solid var(--line);
  }

  .page-about .name-item:last-child {
    border-right: none;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 40px;
    align-items: start;
  }

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

  .page-about .cert-wall {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-about .about-eco__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
    gap: 44px;
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-about .tl {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 12px;
    align-items: start;
    padding-top: 44px;
  }

  .page-about .tl::before {
    left: 0;
    right: 0;
    top: 18px;
    bottom: auto;
    width: auto;
    height: 2px;
    background: linear-gradient(90deg, var(--orange), rgba(43, 217, 180, 0.55));
  }

  .page-about .tl__item {
    padding-left: 0;
  }

  .page-about .tl__item::before {
    left: 4px;
    top: -25px;
    width: 11px;
    height: 11px;
    box-shadow: 0 0 0 4px var(--ink);
  }

  .page-about .tl__summary {
    padding: 14px 13px;
  }

  .page-about .tl__desc {
    padding: 11px 13px 14px;
    font-size: 13.5px;
  }

  .page-about .tl__title {
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl__node,
  .page-about .matrix__cell,
  .page-about .breadcrumb__item a {
    transition: none;
  }

  .page-about .tl__node:hover,
  .page-about .tl__node:focus-within {
    transform: none;
  }
}
<<<END>>>