.page-about {
  --ab-line: var(--rule);
  --ab-soft: var(--orange-soft);
  --ab-node: var(--orange);
  color: var(--ink);
  background: var(--warm);
}

.page-about h1 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(32px, 6vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--blue);
  margin: 14px 0 20px;
}

.page-about h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--blue);
  margin: 0;
}

.page-about h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.4;
  color: var(--blue);
  margin: 0 0 10px;
}

.page-about p {
  margin: 0 0 16px;
}

.page-about a {
  color: var(--orange);
}

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

.page-about .section__head {
  margin-bottom: 32px;
}

.page-about .section__note {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 34ch;
  margin: 1em 0 0;
}

.about-crumb {
  padding-top: 20px;
  padding-bottom: 6px;
  font-size: 14px;
}

.about-kicker {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--orange);
  display: inline-block;
  padding-bottom: 4px;
  border-bottom: 2px solid var(--orange);
}

/* ---------- 首屏 ---------- */
.about-hero__grid {
  display: grid;
  gap: 36px;
}

.about-hero__say {
  max-width: 62ch;
}

.about-hero__say .lead {
  color: var(--blue-2);
}

.about-hero__say p {
  color: var(--blue-2);
  font-size: 17px;
  line-height: 1.78;
}

.about-facts {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--ab-line);
  border: 1px solid var(--ab-line);
}

.about-facts li {
  background: var(--warm);
  padding: 16px 16px 18px;
}

.about-facts__num {
  display: block;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 27px;
  font-weight: 700;
  line-height: 1.05;
  color: var(--blue);
}

.about-facts__unit {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--orange);
  margin-left: 4px;
}

.about-facts__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

.about-hero__media {
  margin: 0;
}

@media (min-width: 960px) {
  .about-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 56px;
    align-items: start;
  }

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

  .about-hero__media {
    margin-top: 12px;
  }
}

/* ---------- 时间线 ---------- */
.tl-wrap {
  display: grid;
  gap: 40px;
}

.tl {
  list-style: none;
  margin: 0;
  padding: 0;
}

.tl-item {
  --node: var(--orange);
  position: relative;
  border-left: 1px solid var(--ab-line);
  padding: 0 0 30px 24px;
}

.tl-item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.tl-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--node);
  box-shadow: 0 0 0 3px var(--warm);
}

.tl-item--1 { --node: var(--mist); }
.tl-item--2 { --node: var(--teal); }
.tl-item--3 { --node: var(--blue-2); }
.tl-item--4 { --node: var(--teal); }
.tl-item--5 { --node: var(--orange); }

.tl-item:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 6px;
}

.tl-year {
  display: block;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--blue);
  margin-bottom: 8px;
}

.tl-title {
  font-size: 19px;
  margin-bottom: 8px;
}

.tl-text {
  font-size: 16px;
  line-height: 1.75;
  color: var(--blue-2);
  margin: 0;
}

.tl-more {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  padding-left: 12px;
  border-left: 2px solid transparent;
  transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.tl-more__inner {
  padding-top: 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--blue-2);
}

.tl-item:hover .tl-more,
.tl-item:focus .tl-more,
.tl-item:focus-within .tl-more {
  max-height: 220px;
  opacity: 1;
  border-left-color: var(--ab-soft);
}

.tl-aside {
  display: grid;
  gap: 20px;
  align-content: start;
}

.tl-aside__figure {
  margin: 0;
}

.tl-aside__note {
  border: 1px solid var(--ab-line);
  background: var(--card);
  padding: 18px 20px 20px;
}

.tl-aside__note h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.tl-aside__note p {
  font-size: 15px;
  line-height: 1.78;
  color: var(--blue-2);
  margin: 0;
}

@media (min-width: 720px) {
  .tl-item {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    column-gap: 26px;
    padding-left: 30px;
  }

  .tl-year {
    text-align: right;
    font-size: 32px;
    margin-bottom: 0;
  }
}

@media (min-width: 1024px) {
  .tl-wrap {
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 56px;
    align-items: start;
  }

  .tl-aside {
    position: sticky;
    top: 24px;
  }
}

/* ---------- 团队 ---------- */
.roles {
  display: grid;
  gap: 1px;
  background: var(--ab-line);
  border: 1px solid var(--ab-line);
}

.role {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--card);
  padding: 24px 22px 22px;
}

.role--focus::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: var(--orange);
}

.role__count {
  display: flex;
  align-items: baseline;
  gap: 5px;
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.role__unit {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--mist);
}

.role__name {
  font-size: 20px;
  margin-bottom: 10px;
}

.role__desc {
  font-size: 16px;
  line-height: 1.78;
  color: var(--blue-2);
  margin: 0 0 18px;
}

.role__detail {
  margin-top: auto;
  border-top: 1px solid var(--ab-line);
  padding-top: 12px;
}

.role__detail summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--orange);
}

.role__detail summary::-webkit-details-marker {
  display: none;
}

.role__detail summary::after {
  content: "+";
  font-family: var(--font-num);
  font-size: 16px;
  line-height: 1;
  transition: transform var(--dur) var(--ease);
}

.role__detail[open] summary::after {
  transform: rotate(45deg);
}

.role__detail p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--blue-2);
}

@media (min-width: 880px) {
  .roles {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.28fr) minmax(0, 1fr);
  }
}

/* ---------- 做法 ---------- */
.ways {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--ab-line);
  border-top: 1px solid var(--ab-line);
  border-bottom: 1px solid var(--ab-line);
}

.way {
  background: var(--warm);
  padding: 26px 22px 28px;
}

.way__idx {
  display: block;
  font-family: var(--font-num);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--orange);
  margin-bottom: 14px;
}

.way h3 {
  font-size: 19px;
  margin-bottom: 10px;
}

.way p {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--blue-2);
}

@media (min-width: 860px) {
  .ways {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .way {
    padding: 30px 26px 32px;
  }
}

/* ---------- 收口 ---------- */
.outro {
  background: var(--blue);
  border-top-color: var(--blue-2);
  color: var(--warm);
}

.outro__grid {
  display: grid;
  gap: 32px;
  padding: 44px 0 48px;
}

.outro h2 {
  color: #ffffff;
  margin-bottom: 16px;
}

.outro__say p {
  color: rgba(255, 255, 255, 0.82);
  font-size: 17px;
  line-height: 1.78;
  max-width: 46ch;
}

.outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 18px;
}

.outro__aside {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(255, 255, 255, 0.68);
  margin: 0;
}

.outro__aside a {
  color: var(--orange-soft);
  text-decoration: underline;
}

.outro__media {
  margin: 0;
  border: 1px solid var(--rule-dark);
}

.outro__media .image-frame__caption {
  color: rgba(255, 255, 255, 0.62);
}

@media (min-width: 900px) {
  .outro__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
    gap: 56px;
    align-items: center;
    padding: 60px 0 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-more,
  .page-about .role__detail summary::after {
    transition: none;
  }
}
</｜｜DSML｜｜ parameter>
</invoke>
</result>