.page-about {
  background: var(--ink-900);
  color: var(--paper-100);
  font-family: var(--font-body);
}

.page-about p {
  line-height: 1.85;
}

.page-about a {
  color: inherit;
}

.page-about .about-crumb {
  padding-top: clamp(16px, 3vw, 26px);
}

/* 首屏 */
.page-about .about-hero {
  padding: clamp(26px, 5vw, 58px) 0 clamp(30px, 5vw, 54px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 30px;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.4vw, 70px);
  line-height: 1.12;
  letter-spacing: 0.01em;
  color: var(--gold-200);
  margin: 14px 0 20px;
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--paper-100);
}

.page-about .about-hero__side {
  display: grid;
  gap: 14px;
}

.page-about .hero-card {
  border: 1px solid var(--ink-700);
  border-top: 2px solid var(--gold-500);
  background: var(--ink-800);
  padding: 16px 18px 18px;
}

.page-about .hero-card__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone-light);
}

.page-about .hero-list {
  list-style: none;
  margin: 10px 0 4px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .hero-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 15px;
}

.page-about .hero-list .mono {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--gold-500);
  letter-spacing: 0.04em;
}

.page-about .hero-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold-200);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-500);
  padding-bottom: 3px;
}

.page-about .hero-link:hover {
  color: var(--gold-500);
}

/* 章节通用 */
.page-about .about-block {
  padding: clamp(42px, 7vw, 92px) 0;
}

.page-about .about-block--paper {
  background: var(--paper-100);
  color: var(--ink-900);
}

.page-about h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 3.4vw, 42px);
  line-height: 1.22;
  margin: 0;
  color: var(--gold-200);
}

.page-about .about-block--paper h2 {
  color: var(--ink-900);
}

.page-about .block-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-about .block-head__note {
  margin: 0;
  font-size: 14.5px;
  color: var(--stone-light);
  max-width: 54ch;
}

.page-about .about-block--paper .block-head__note {
  color: var(--stone-400);
}

/* 时间线 */
.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .tl-item {
  position: relative;
  padding-left: 26px;
  padding-bottom: clamp(28px, 4vw, 46px);
  border-left: 1px solid var(--moss-700);
}

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

.page-about .tl-item__dot {
  position: absolute;
  left: -6px;
  top: 12px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 1px solid var(--gold-500);
  background: var(--ink-900);
}

.page-about .tl-item__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--stone-light);
  transition: color 240ms ease-out;
}

.page-about .tl-item.is-inview .tl-item__year {
  color: var(--gold-500);
}

.page-about .tl-item__body {
  margin-top: 10px;
}

.page-about .tl-item__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.3vw, 25px);
  line-height: 1.4;
  color: var(--gold-200);
  margin: 0 0 12px;
}

.page-about .tl-item__body p {
  margin: 0 0 0.9em;
  max-width: 62ch;
  font-size: 15px;
}

.page-about .tl-item__link {
  margin-top: 6px;
}

.page-about .tl-item__link a {
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--gold-500);
  text-decoration: none;
  border-bottom: 1px solid var(--ink-700);
  padding-bottom: 2px;
}

.page-about .tl-item__link a:hover {
  color: var(--gold-200);
  border-bottom-color: var(--gold-500);
}

/* 图片 */
.page-about .about-figure {
  margin: 22px 0 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--ink-700);
}

.page-about .about-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--stone-light);
}

.page-about .about-block--paper .about-figure img {
  border-color: var(--stone-400);
}

.page-about .about-block--paper .about-figure figcaption {
  color: var(--stone-400);
}

/* 三条原则 */
.page-about .principles {
  border-top: 1px solid rgba(14, 26, 38, 0.18);
}

.page-about .principle {
  border-bottom: 1px solid rgba(14, 26, 38, 0.18);
}

.page-about .principle summary {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 22px;
  align-items: center;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-about .principle:focus-within summary {
  outline: 1px solid var(--gold-500);
  outline-offset: 4px;
}

.page-about .principle__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--cinnabar);
  color: var(--cinnabar);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-about .principle__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.3vw, 23px);
  line-height: 1.45;
  color: var(--ink-900);
}

.page-about .principle__plus {
  position: relative;
  justify-self: end;
  width: 14px;
  height: 14px;
}

.page-about .principle__plus::before,
.page-about .principle__plus::after {
  content: "";
  position: absolute;
  background: var(--ink-800);
  transition: transform 160ms ease-out;
}

.page-about .principle__plus::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1px;
}

.page-about .principle__plus::after {
  left: 6px;
  top: 0;
  width: 1px;
  height: 14px;
}

.page-about .principle[open] .principle__plus::after {
  transform: scaleY(0);
}

.page-about .principle__body {
  padding: 0 0 22px;
}

.page-about .principle__body p {
  margin: 0 0 0.9em;
  font-size: 15px;
  color: var(--ink-800);
  max-width: 62ch;
}

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

/* 主张 */
.page-about .about-block--statement {
  background: var(--ink-800);
}

.page-about .statement-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 8.4vw, 92px);
  line-height: 1.02;
  letter-spacing: 0.03em;
  color: var(--gold-200);
  margin: 12px 0 16px;
}

.page-about .statement-lede {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 23px);
  line-height: 1.7;
  margin: 0 0 clamp(26px, 4vw, 42px);
  max-width: 28ch;
  color: var(--paper-100);
}

.page-about .statement-list {
  border-top: 1px solid var(--ink-700);
}

.page-about .statement-item {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--ink-700);
}

.page-about .statement-item__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold-500);
  letter-spacing: 0.1em;
}

.page-about .statement-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  color: var(--gold-200);
}

.page-about .statement-item p {
  margin: 0;
  font-size: 14.5px;
  color: var(--paper-100);
  max-width: 60ch;
}

/* 团队 */
.page-about .team {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ink-700);
}

.page-about .team__item {
  padding: 22px 0 26px;
  border-bottom: 1px solid var(--ink-700);
}

.page-about .team__num {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.2vw, 44px);
  line-height: 1;
  color: var(--gold-500);
}

.page-about .team__item h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  color: var(--gold-200);
}

.page-about .team__item p {
  margin: 0;
  font-size: 14.5px;
  color: var(--paper-100);
}

.page-about .about-figure--wide {
  margin-top: clamp(26px, 4vw, 40px);
}

.page-about .team__route {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--ink-700);
  font-size: 14.5px;
  color: var(--stone-light);
  max-width: 70ch;
}

.page-about .team__route a {
  color: var(--gold-500);
  text-decoration: none;
  border-bottom: 1px solid var(--ink-700);
  padding-bottom: 2px;
  margin-left: 4px;
}

.page-about .team__route a:hover {
  color: var(--gold-200);
  border-bottom-color: var(--gold-500);
}

/* 服务覆盖 */
.page-about .coverage {
  display: grid;
  gap: 28px;
}

.page-about .coverage__lead p {
  margin: 0 0 0.9em;
  font-size: 15px;
  color: var(--ink-800);
  max-width: 56ch;
}

.page-about .coverage-list {
  margin: 0;
  border-top: 1px solid rgba(14, 26, 38, 0.18);
}

.page-about .coverage-list__row {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(14, 26, 38, 0.18);
}

.page-about .coverage-list dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone-400);
}

.page-about .coverage-list dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
}

/* 数据概览 */
.page-about .stats {
  display: grid;
  gap: 1px;
  background: var(--ink-700);
  border: 1px solid var(--ink-700);
}

.page-about .stat {
  background: var(--ink-900);
  padding: 22px 20px 24px;
}

.page-about .stat__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(32px, 5vw, 50px);
  line-height: 1;
  color: var(--gold-200);
}

.page-about .stat__unit {
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--stone-light);
  margin-left: 6px;
}

.page-about .stat__label {
  margin: 10px 0 0;
  font-size: 15px;
  color: var(--paper-100);
}

.page-about .stat__note {
  margin: 6px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--stone-light);
  transition: color 200ms ease-out;
}

.page-about .stat:hover .stat__note,
.page-about .stat:focus-within .stat__note {
  color: var(--gold-500);
}

.page-about .stat--quote {
  background: var(--ink-800);
  display: flex;
  align-items: center;
}

.page-about .stat--quote p {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.8vw, 28px);
  line-height: 1.6;
  color: var(--gold-200);
  max-width: 22ch;
}

/* 收束 */
.page-about .about-block--closing {
  background: var(--ink-800);
}

.page-about .closing {
  display: grid;
  gap: 28px;
}

.page-about .about-figure--square {
  margin: 0;
}

.page-about .closing__text p {
  margin: 14px 0 0;
  font-size: 15px;
  color: var(--paper-100);
  max-width: 46ch;
}

.page-about .closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* 平板与桌面 */
@media (min-width: 700px) {
  .page-about .principle__body {
    padding-left: 58px;
  }

  .page-about .coverage-list__row {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

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

  .page-about .stat--quote {
    grid-column: span 2;
  }
}

@media (min-width: 880px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    column-gap: 56px;
    align-items: end;
  }

  .page-about .block-head {
    grid-template-columns: 148px minmax(0, 1fr);
    column-gap: 40px;
    align-items: start;
    row-gap: 12px;
  }

  .page-about .block-head__note {
    grid-column: 2;
  }

  .page-about .tl-item {
    display: grid;
    grid-template-columns: 108px minmax(0, 1fr);
    column-gap: 52px;
    border-left: 0;
    padding-left: 0;
  }

  .page-about .tl-item::before {
    content: "";
    position: absolute;
    left: 134px;
    top: 16px;
    bottom: 0;
    width: 1px;
    background: var(--moss-700);
  }

  .page-about .tl-item:last-child::before {
    display: none;
  }

  .page-about .tl-item__aside {
    position: sticky;
    top: 96px;
    align-self: start;
    text-align: right;
    padding-right: 26px;
  }

  .page-about .tl-item__dot {
    left: 134px;
    top: 18px;
    transform: translateX(-50%);
  }

  .page-about .tl-item__year {
    font-size: 15px;
  }

  .page-about .tl-item__body {
    margin-top: 0;
  }

  .page-about .team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 32px;
  }

  .page-about .team__item + .team__item {
    padding-left: 32px;
    border-left: 1px solid var(--ink-700);
  }

  .page-about .coverage {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    column-gap: 56px;
  }

  .page-about .stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .closing {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: center;
    column-gap: 56px;
  }
}

@media (min-width: 1040px) {
  .page-about .tl-item--media .tl-item__body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    column-gap: 36px;
    align-items: start;
  }

  .page-about .tl-item--media .about-figure {
    margin-top: 4px;
  }

  .page-about .statement-item {
    grid-template-columns: 56px 180px minmax(0, 1fr);
    column-gap: 24px;
    align-items: baseline;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-item__year,
  .page-about .stat__note,
  .page-about .principle__plus::after {
    transition: none;
  }
}



.page-about {
  background: var(--ink-900);
  color: var(--paper-100);
  font-family: var(--font-body);
}

.page-about p {
  line-height: 1.85;
}

.page-about .about-crumb {
  padding-top: clamp(16px, 3vw, 26px);
}

/* 首屏 */
.page-about .about-hero {
  padding: clamp(26px, 5vw, 58px) 0 clamp(30px, 5vw, 54px);
}

.page-about .about-hero__grid {
  display: grid;
  gap: 30px;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.4vw, 70px);
  line-height: 1.12;
  letter-spacing: 0.01em;
  color: var(--gold-200);
  margin: 14px 0 20px;
}

.page-about .about-hero__lede {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--paper-100);
}

.page-about .about-hero__side {
  display: grid;
  gap: 14px;
}

.page-about .hero-card {
  border: 1px solid var(--ink-700);
  border-top: 2px solid var(--gold-500);
  background: var(--ink-800);
  padding: 16px 18px 18px;
}

.page-about .hero-card__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone-light);
}

.page-about .hero-list {
  list-style: none;
  margin: 10px 0 4px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .hero-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 15px;
}

.page-about .hero-list .mono {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--gold-500);
  letter-spacing: 0.04em;
}

.page-about .hero-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold-200);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-500);
  padding-bottom: 3px;
}

.page-about .hero-link:hover {
  color: var(--gold-500);
}

/* 章节通用 */
.page-about .about-block {
  padding: clamp(42px, 7vw, 92px) 0;
}

.page-about .about-block--paper {
  background: var(--paper-100);
  color: var(--ink-900);
}

.page-about h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 3.4vw, 42px);
  line-height: 1.22;
  margin: 0;
  color: var(--gold-200);
}

.page-about .about-block--paper h2 {
  color: var(--ink-900);
}

.page-about .block-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-about .block-head__note {
  margin: 0;
  font-size: 14.5px;
  color: var(--stone-light);
  max-width: 54ch;
}

.page-about .about-block--paper .block-head__note {
  color: var(--stone-400);
}

/* 时间线 */
.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .tl-item {
  position: relative;
  padding-left: 26px;
  padding-bottom: clamp(28px, 4vw, 46px);
  border-left: 1px solid var(--moss-700);
}

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

.page-about .tl-item__dot {
  position: absolute;
  left: -6px;
  top: 12px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 1px solid var(--gold-500);
  background: var(--ink-900);
}

.page-about .tl-item__year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--stone-light);
  transition: color 240ms ease-out;
}

.page-about .tl-item.is-inview .tl-item__year {
  color: var(--gold-500);
}

.page-about .tl-item__body {
  margin-top: 10px;
}

.page-about .tl-item__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.3vw, 25px);
  line-height: 1.4;
  color: var(--gold-200);
  margin: 0 0 12px;
}

.page-about .tl-item__body p {
  margin: 0 0 0.9em;
  max-width: 62ch;
  font-size: 15px;
}

.page-about .tl-item__link {
  margin-top: 6px;
}

.page-about .tl-item__link a {
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--gold-500);
  text-decoration: none;
  border-bottom: 1px solid var(--ink-700);
  padding-bottom: 2px;
}

.page-about .tl-item__link a:hover {
  color: var(--gold-200);
  border-bottom-color: var(--gold-500);
}

/* 图片 */
.page-about .about-figure {
  margin: 22px 0 0;
}

.page-about .about-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--ink-700);
}

.page-about .about-figure figcaption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--stone-light);
}

/* 三条原则 */
.page-about .principles {
  border-top: 1px solid rgba(14, 26, 38, 0.18);
}

.page-about .principle {
  border-bottom: 1px solid rgba(14, 26, 38, 0.18);
}

.page-about .principle summary {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 22px;
  align-items: center;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-about .principle__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--cinnabar);
  color: var(--cinnabar);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-about .principle__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2.3vw, 23px);
  line-height: 1.45;
  color: var(--ink-900);
}

.page-about .principle__plus {
  position: relative;
  justify-self: end;
  width: 14px;
  height: 14px;
}

.page-about .principle__plus::before,
.page-about .principle__plus::after {
  content: "";
  position: absolute;
  background: var(--ink-800);
  transition: transform 160ms ease-out;
}

.page-about .principle__plus::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1px;
}

.page-about .principle__plus::after {
  left: 6px;
  top: 0;
  width: 1px;
  height: 14px;
}

.page-about .principle[open] .principle__plus::after {
  transform: scaleY(0);
}

.page-about .principle__body {
  padding: 0 0 22px;
}

.page-about .principle__body p {
  margin: 0 0 0.9em;
  font-size: 15px;
  color: var(--ink-800);
  max-width: 62ch;
}

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

/* 主张 */
.page-about .about-block--statement {
  background: var(--ink-800);
}

.page-about .statement-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 8.4vw, 92px);
  line-height: 1.02;
  letter-spacing: 0.03em;
  color: var(--gold-200);
  margin: 12px 0 16px;
}

.page-about .statement-lede {
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 23px);
  line-height: 1.7;
  margin: 0 0 clamp(26px, 4vw, 42px);
  max-width: 28ch;
  color: var(--paper-100);
}

.page-about .statement-list {
  border-top: 1px solid var(--ink-700);
}

.page-about .statement-item {
  display: grid;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--ink-700);
}

.page-about .statement-item__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold-500);
  letter-spacing: 0.1em;
}

.page-about .statement-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  color: var(--gold-200);
}

.page-about .statement-item p {
  margin: 0;
  font-size: 14.5px;
  color: var(--paper-100);
  max-width: 60ch;
}

/* 团队 */
.page-about .team {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ink-700);
}

.page-about .team__item {
  padding: 22px 0 26px;
  border-bottom: 1px solid var(--ink-700);
}

.page-about .team__num {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.2vw, 44px);
  line-height: 1;
  color: var(--gold-500);
}

.page-about .team__item h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  color: var(--gold-200);
}

.page-about .team__item p {
  margin: 0;
  font-size: 14.5px;
  color: var(--paper-100);
}

.page-about .about-figure--wide {
  margin-top: clamp(26px, 4vw, 40px);
}

.page-about .team__route {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--ink-700);
  font-size: 14.5px;
  color: var(--stone-light);
  max-width: 70ch;
}

.page-about .team__route a {
  color: var(--gold-500);
  text-decoration: none;
  border-bottom: 1px solid var(--ink-700);
  padding-bottom: 2px;
  margin-left: 4px;
}

.page-about .team__route a:hover {
  color: var(--gold-200);
  border-bottom-color: var(--gold-500);
}

/* 服务覆盖 */
.page-about .coverage {
  display: grid;
  gap: 28px;
}

.page-about .coverage__lead p {
  margin: 0 0 0.9em;
  font-size: 15px;
  color: var(--ink-800);
  max-width: 56ch;
}

.page-about .coverage-list {
  margin: 0;
  border-top: 1px solid rgba(14, 26, 38, 0.18);
}

.page-about .coverage-list__row {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(14, 26, 38, 0.18);
}

.page-about .coverage-list dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone-400);
}

.page-about .coverage-list dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
}

/* 数据概览 */
.page-about .stats {
  display: grid;
  gap: 1px;
  background: var(--ink-700);
  border: 1px solid var(--ink-700);
}

.page-about .stat {
  background: var(--ink-900);
  padding: 22px 20px 24px;
}

.page-about .stat__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(32px, 5vw, 50px);
  line-height: 1;
  color: var(--gold-200);
}

.page-about .stat__unit {
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--stone-light);
  margin-left: 6px;
}

.page-about .stat__label {
  margin: 10px 0 0;
  font-size: 15px;
  color: var(--paper-100);
}

.page-about .stat__note {
  margin: 6px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--stone-light);
  transition: color 200ms ease-out;
}

.page-about .stat:hover .stat__note,
.page-about .stat:focus-within .stat__note {
  color: var(--gold-500);
}

.page-about .stat--quote {
  background: var(--ink-800);
  display: flex;
  align-items: center;
}

.page-about .stat--quote p {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.8vw, 28px);
  line-height: 1.6;
  color: var(--gold-200);
  max-width: 22ch;
}

/* 收束 */
.page-about .about-block--closing {
  background: var(--ink-800);
}

.page-about .closing {
  display: grid;
  gap: 28px;
}

.page-about .about-figure--square {
  margin: 0;
}

.page-about .closing__text p {
  margin: 14px 0 0;
  font-size: 15px;
  color: var(--paper-100);
  max-width: 46ch;
}

.page-about .closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* 响应式 */
@media (min-width: 700px) {
  .page-about .principle__body {
    padding-left: 58px;
  }

  .page-about .coverage-list__row {
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

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

  .page-about .stat--quote {
    grid-column: span 2;
  }
}

@media (min-width: 880px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    column-gap: 56px;
    align-items: end;
  }

  .page-about .block-head {
    grid-template-columns: 148px minmax(0, 1fr);
    column-gap: 40px;
    align-items: start;
    row-gap: 12px;
  }

  .page-about .block-head__note {
    grid-column: 2;
  }

  .page-about .tl-item {
    display: grid;
    grid-template-columns: 108px minmax(0, 1fr);
    column-gap: 52px;
    border-left: 0;
    padding-left: 0;
  }

  .page-about .tl-item::before {
    content: "";
    position: absolute;
    left: 134px;
    top: 16px;
    bottom: 0;
    width: 1px;
    background: var(--moss-700);
  }

  .page-about .tl-item:last-child::before {
    display: none;
  }

  .page-about .tl-item__aside {
    position: sticky;
    top: 96px;
    align-self: start;
    text-align: right;
    padding-right: 26px;
  }

  .page-about .tl-item__dot {
    left: 134px;
    top: 18px;
    transform: translateX(-50%);
  }

  .page-about .tl-item__year {
    font-size: 15px;
  }

  .page-about .tl-item__body {
    margin-top: 0;
  }

  .page-about .team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 32px;
  }

  .page-about .team__item + .team__item {
    padding-left: 32px;
    border-left: 1px solid var(--ink-700);
  }

  .page-about .coverage {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    column-gap: 56px;
  }

  .page-about .stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .closing {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: center;
    column-gap: 56px;
  }
}

@media (min-width: 1040px) {
  .page-about .tl-item--media .tl-item__body {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    column-gap: 36px;
    align-items: start;
  }

  .page-about .tl-item--media .about-figure {
    margin-top: 4px;
  }

  .page-about .statement-item {
    grid-template-columns: 56px 180px minmax(0, 1fr);
    column-gap: 24px;
    align-items: baseline;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-item__year,
  .page-about .stat__note,
  .page-about .principle__plus::after {
    transition: none;
  }
}