.page-about {
  --about-teal: #0B6B5C;
  --about-tl-indent: clamp(22px, 4vw, 44px);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-block: clamp(20px, 4vw, 48px) clamp(36px, 7vw, 80px);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-about .about-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-about .about-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.4vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-about .about-hero__lead {
  max-width: 60ch;
  margin: 0 0 26px;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--steel);
}

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

.page-about .about-hero__media {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-about .about-hero__media .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

/* ---------- 通用区块 ---------- */
.page-about .about-block {
  padding-block: clamp(40px, 7vw, 84px);
}

.page-about .about-block .section__lead {
  max-width: 66ch;
}

/* ---------- 时间线 ---------- */
.page-about .tl-nav {
  display: flex;
  gap: 8px;
  margin-top: 24px;
  padding-bottom: 12px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-about .tl-nav__link {
  flex: 0 0 auto;
  padding: 8px 14px;
  border: 1px solid var(--line);
  font-family: var(--font-data);
  font-size: var(--fs-14);
  line-height: 1;
  color: var(--steel);
  text-decoration: none;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}

.page-about .tl-nav__link:hover,
.page-about .tl-nav__link:focus-visible {
  color: var(--on-cyan);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-about .tl-list {
  list-style: none;
  margin: 0;
  padding: 8px 0 0 var(--about-tl-indent);
  border-left: 1px solid var(--line);
}

.page-about .tl-item {
  position: relative;
  padding-bottom: clamp(26px, 4vw, 46px);
  scroll-margin-top: 120px;
}

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

.page-about .tl-item::before {
  content: "";
  position: absolute;
  top: 10px;
  left: calc(-1 * var(--about-tl-indent) - 5px);
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(61, 242, 214, 0.12);
}

.page-about .tl-item__year {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 5vw, 40px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cyan);
}

.page-about .tl-item .tag {
  display: inline-block;
  margin-bottom: 10px;
}

.page-about .tl-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-about .tl-item p {
  max-width: 62ch;
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--steel);
}

/* ---------- 四条业务线 ---------- */
.page-about .work-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: 28px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-about .work-item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3vw, 32px);
  background: var(--ink-850);
}

.page-about .work-item__no {
  font-family: var(--font-data);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-about .work-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  color: var(--paper);
}

.page-about .work-item p {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--steel);
}

.page-about .work-item__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: auto 0 0;
  padding: 6px 0 0;
  list-style: none;
}

.page-about .work-item__facts li {
  padding: 4px 10px;
  border: 1px solid var(--line);
  font-family: var(--font-data);
  font-size: var(--fs-12);
  color: var(--cyan-soft);
}

@media (min-width: 760px) {
  .page-about .work-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 信息来源 ---------- */
.page-about .source-panel {
  margin-top: 28px;
  padding: clamp(22px, 3.5vw, 40px);
  border: 1px solid var(--line);
  background: var(--paper);
}

.page-about .source-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

.page-about .source-item__no {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-data);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  color: var(--about-teal);
  border-bottom: 2px solid var(--orange);
  padding-bottom: 3px;
}

.page-about .source-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  color: var(--ink-900);
}

.page-about .source-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-800);
}

.page-about .source-panel__note {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(7, 21, 50, 0.16);
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-900);
  font-style: italic;
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

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

/* ---------- 团队 ---------- */
.page-about .team-figure {
  margin: 30px 0 0;
}

.page-about .team-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-about .team-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 16px;
}

.page-about .team-card {
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line);
  background: var(--ink-800);
  transition: border-color var(--t-fast), background var(--t-fast), transform var(--t-fast);
}

.page-about .team-card:hover,
.page-about .team-card:focus-within {
  border-color: var(--cyan);
  background: var(--ink-850);
  transform: translateY(-3px);
}

.page-about .team-card__num {
  display: block;
  font-family: var(--font-data);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-about .team-card__count {
  display: block;
  margin: 10px 0 4px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 6vw, 56px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-about .team-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: var(--fs-20);
  color: var(--paper);
}

.page-about .team-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--steel);
}

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

/* ---------- 更新节奏 ---------- */
.page-about .cadence {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: 20px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-about .cadence__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px;
  background: var(--ink-950);
}

.page-about .cadence__key {
  font-size: var(--fs-14);
  color: var(--cyan);
}

.page-about .cadence__val {
  font-size: var(--fs-14);
  line-height: 1.65;
  color: var(--steel);
}

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

/* ---------- 广西本地化 ---------- */
.page-about .guangxi {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: 28px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-about .guangxi__stat {
  padding: clamp(22px, 3vw, 34px);
  background: var(--ink-800);
}

.page-about .guangxi__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(48px, 9vw, 88px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
}

.page-about .guangxi__label {
  margin: 12px 0 0;
  font-size: var(--fs-14);
  line-height: 1.65;
  color: var(--steel);
}

.page-about .guangxi__body {
  padding: clamp(22px, 3vw, 34px);
  background: var(--ink-850);
}

.page-about .guangxi__body p {
  margin: 0 0 14px;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--steel);
}

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

.page-about .guangxi__list {
  display: grid;
  gap: 10px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-about .guangxi__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--steel);
}

.page-about .guangxi__list li::before {
  content: "";
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

@media (min-width: 860px) {
  .page-about .guangxi {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }
}

/* ---------- 协作生态 ---------- */
.page-about .eco-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 4vw, 40px);
  margin-top: 30px;
  align-items: start;
}

.page-about .eco-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-about .eco-figure .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-about .eco-tabs {
  min-width: 0;
}

.page-about .eco-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-about .eco-note {
  margin: 0 0 14px;
  max-width: 60ch;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--steel);
}

.page-about .eco-note:last-child {
  margin-bottom: 0;
}

.page-about .eco-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .eco-wall li {
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: var(--ink-850);
  font-size: var(--fs-14);
  color: var(--steel);
  transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast);
}

.page-about .eco-wall li:hover {
  border-color: var(--cyan);
  color: var(--paper);
}

@media (min-width: 900px) {
  .page-about .eco-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

/* ---------- 认证与收尾 ---------- */
.page-about .about-cert {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 32px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  background: var(--ink-950);
}

.page-about .about-cert__item {
  font-family: var(--font-data);
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--cyan-soft);
}

.page-about .about-cert__dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--orange);
}

.page-about .about-cta {
  margin: 20px 0 0;
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--steel);
}

.page-about .about-cta a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-about .about-cta a:hover,
.page-about .about-cta a:focus-visible {
  color: var(--cyan-soft);
}

@media (prefers-reduced-motion: reduce) {
  .page-about .team-card,
  .page-about .eco-wall li,
  .page-about .tl-nav__link {
    transition: none;
  }

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