.page-about {
  background: var(--cream);
  color: var(--text);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: 22px 0 56px;
  overflow: hidden;
}

.page-about .about-hero__grid {
  margin-top: 24px;
  display: grid;
  gap: 32px;
}

.page-about .about-hero h1 {
  margin: 16px 0 0;
  font-size: clamp(32px, 8.2vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--ink);
  word-break: break-word;
}

.page-about .about-hero__lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .about-hero__actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

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

@media (min-width: 920px) {
  .page-about .about-hero {
    padding: 28px 0 76px;
  }
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
    gap: 56px;
  }
}

/* ---------- 通用分区节奏 ---------- */
.page-about .section {
  padding: 52px 0;
}

.page-about h2 {
  margin: 10px 0 0;
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--ink);
}

@media (min-width: 900px) {
  .page-about .section {
    padding: 82px 0;
  }
}

/* ---------- 三条主线 ---------- */
.page-about .about-lines__intro {
  margin: 18px 0 0;
  max-width: 46em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .lines {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  border-top: var(--hair);
}

.page-about .lines__item {
  display: grid;
  gap: 8px;
  padding: 26px 0;
  border-bottom: var(--hair);
  transition: background 180ms linear;
}

.page-about .lines__item:hover {
  background: rgba(11, 127, 112, 0.06);
}

.page-about .lines__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--jade);
}

.page-about .lines__body h3 {
  margin: 0 0 8px;
  font-size: 20px;
  line-height: 1.35;
  font-weight: 800;
  color: var(--ink);
}

.page-about .lines__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .lines__link {
  justify-self: start;
}

@media (min-width: 820px) {
  .page-about .lines__item {
    grid-template-columns: 64px minmax(0, 1fr) 180px;
    gap: 24px;
    align-items: start;
    padding: 30px 16px;
  }
  .page-about .lines__num {
    padding-top: 5px;
  }
  .page-about .lines__link {
    justify-self: end;
    text-align: right;
    padding-top: 5px;
  }
}

/* ---------- 数据来源 ---------- */
.page-about .about-source__aside {
  display: grid;
  gap: 22px;
  align-content: start;
}

.page-about .about-source__aside .media {
  margin: 0;
}

.page-about .steps {
  list-style: none;
  margin: 40px 0 0;
  padding: 1px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(10, 34, 51, 0.16);
  border: 1px solid rgba(10, 34, 51, 0.16);
}

.page-about .steps__item {
  margin: 0;
  background: var(--cream);
  padding: 20px 16px 22px;
}

.page-about .steps__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-about .steps__item h3 {
  margin: 10px 0 6px;
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
}

.page-about .steps__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(20, 24, 31, 0.78);
}

@media (min-width: 700px) {
  .page-about .steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

/* ---------- 团队 ---------- */
.page-about .about-team__intro {
  margin: 18px 0 0;
  max-width: 46em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .team-grid {
  display: grid;
  gap: 26px;
  margin-top: 36px;
}

.page-about .team-col {
  border-top: 3px solid var(--jade-deep);
  padding-top: 18px;
}

.page-about .team-col__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 34px;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--jade);
}

.page-about .team-col h3 {
  margin: 14px 0 8px;
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
}

.page-about .team-col p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(20, 24, 31, 0.82);
}

.page-about .about-team__note {
  margin: 32px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--wine);
  max-width: 62em;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(20, 24, 31, 0.76);
}

@media (min-width: 760px) {
  .page-about .team-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px;
  }
}

/* ---------- 发展历程时间线 ---------- */
.page-about .about-history {
  color: rgba(246, 241, 230, 0.82);
}

.page-about .about-history h2,
.page-about .about-history h3 {
  color: #ffffff;
}

.page-about .tl {
  list-style: none;
  margin: 40px 0 0;
  padding: 0 0 0 34px;
  position: relative;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--jade) 0%, var(--jade) 55%, var(--orange) 100%);
}

.page-about .tl__item {
  position: relative;
  padding-bottom: 34px;
}

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

.page-about .tl__node {
  position: absolute;
  left: -30px;
  top: 3px;
  width: 14px;
  height: 14px;
  background: var(--jade);
  border-radius: 0;
}

.page-about .tl__node--now {
  left: -34px;
  top: -2px;
  width: 22px;
  height: 22px;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 106, 19, 0.28);
}

.page-about .tl__stage {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--amber);
}

.page-about .tl__item h3 {
  margin: 8px 0 8px;
  font-size: 20px;
  line-height: 1.4;
  font-weight: 800;
}

.page-about .tl__desc {
  margin: 0;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(246, 241, 230, 0.76);
}

.page-about .about-history__media {
  margin: 44px 0 0;
  max-width: 560px;
}

/* ---------- 服务范围与规模 ---------- */
.page-about .stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

.page-about .stat {
  background: var(--cream);
  border-left: 4px solid var(--jade-deep);
  padding: 18px 16px 20px;
}

.page-about .stat--amber {
  background: var(--amber);
  border-left-color: var(--ink);
}

.page-about .stat__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 5vw, 34px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-about .stat__unit {
  font-size: 0.62em;
  margin-left: 2px;
}

.page-about .stat__label {
  display: block;
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(20, 24, 31, 0.78);
}

.page-about .about-scale__split {
  margin-top: 44px;
}

.page-about .about-scale__aside {
  border-top: 3px solid var(--wine);
  padding-top: 18px;
}

.page-about .about-scale__aside-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--jade-deep);
}

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

.page-about .about-scale__list li {
  position: relative;
  padding: 0 0 14px 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-about .about-scale__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  background: var(--jade);
}

@media (min-width: 760px) {
  .page-about .stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

/* ---------- 价值观 ---------- */
.page-about .values {
  display: grid;
  gap: 1px;
  margin-top: 34px;
  padding: 1px;
  background: rgba(10, 34, 51, 0.16);
  border: 1px solid rgba(10, 34, 51, 0.16);
}

.page-about .values__item {
  margin: 0;
  background: var(--cream);
  padding: 24px 22px 26px;
}

.page-about .values__item h3 {
  margin: 0 0 10px;
  padding-left: 14px;
  border-left: 3px solid var(--wine);
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
}

.page-about .values__item p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(20, 24, 31, 0.84);
}

@media (min-width: 820px) {
  .page-about .values {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 合作生态带 ---------- */
.page-about .about-eco {
  color: rgba(246, 241, 230, 0.84);
}

.page-about .about-eco h2 {
  color: #ffffff;
}

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

.page-about .about-eco__intro {
  margin: 18px 0 0;
  max-width: 46em;
  font-size: 15.5px;
  line-height: 1.85;
}

.page-about .eco {
  display: flex;
  margin-top: 34px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  border-top: 1px solid rgba(246, 241, 230, 0.3);
  border-bottom: 1px solid rgba(246, 241, 230, 0.3);
}

.page-about .eco__item {
  flex: 0 0 auto;
  width: 240px;
  scroll-snap-align: start;
  padding: 24px 20px 26px;
  border-right: 1px solid rgba(246, 241, 230, 0.22);
}

.page-about .eco__item:last-child {
  border-right: 0;
}

.page-about .eco__name {
  display: block;
  font-size: 16px;
  font-weight: 800;
  color: #ffffff;
}

.page-about .eco__count {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--amber);
}

.page-about .eco__item p {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(246, 241, 230, 0.74);
}

@media (min-width: 760px) {
  .page-about .eco__item {
    width: 280px;
  }
}

/* ---------- 下一步 ---------- */
.page-about .about-next__grid {
  display: grid;
  gap: 32px;
}

.page-about .about-next__lead {
  margin: 18px 0 26px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.page-about .about-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--hair);
}

.page-about .about-next__list li {
  padding: 16px 0;
  border-bottom: var(--hair);
}

@media (min-width: 820px) {
  .page-about .about-next__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 400px);
    gap: 56px;
    align-items: start;
  }
  .page-about .about-next__list {
    margin-top: 6px;
  }
}
<<<END>>>