.page-about {
  --about-card: var(--trench);
  --about-hair: var(--grid);
  --about-lift: 0 26px 60px -32px rgba(0, 0, 0, 0.9);
  display: block;
  overflow-x: clip;
  color: var(--mist);
}

.page-about .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: clamp(92px, 14vw, 128px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fog);
}

.page-about .breadcrumb a {
  color: var(--fog);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .breadcrumb a:hover,
.page-about .breadcrumb a:focus-visible {
  color: var(--coral-soft);
  border-bottom-color: var(--coral-soft);
}

.page-about .about-text {
  font-size: 15px;
  line-height: 1.85;
  color: var(--fog);
  margin: 0 0 14px;
}

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

.page-about .about-hero {
  position: relative;
  padding: clamp(20px, 4vw, 40px) 0 clamp(44px, 8vw, 84px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -8% 42% 34% -18%;
  background: radial-gradient(circle at 34% 42%, rgba(255, 107, 74, 0.17), transparent 66%);
  pointer-events: none;
}

.page-about .about-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(26px, 5vw, 44px);
}

.page-about .about-hero__copy .eyebrow {
  color: var(--beacon);
  margin-bottom: 14px;
}

.page-about .about-hero__copy .display {
  margin: 0 0 18px;
  line-height: 1.08;
}

.page-about .about-hero__copy .lede {
  max-width: 62ch;
  color: var(--fog);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
}

.page-about .about-hero__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--about-hair);
  box-shadow: var(--about-lift);
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-hero__caption {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  margin-top: 14px;
  padding: 10px 14px;
  border-left: 2px solid var(--coral);
  background: rgba(11, 42, 56, 0.6);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.page-about .about-hero__caption-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--coral-soft);
}

.page-about .about-hero__caption-text {
  font-size: 13px;
  line-height: 1.6;
  color: var(--sand);
}

.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  list-style: none;
  margin: clamp(28px, 5vw, 44px) 0 0;
  padding: 0;
}

.page-about .about-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 14px 18px;
  border: 1px solid var(--about-hair);
  border-radius: var(--radius-md);
  background: rgba(11, 42, 56, 0.55);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.page-about .about-stat:hover {
  border-color: var(--teal);
  transform: translateY(-3px);
}

.page-about .about-stat__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--beacon);
}

.page-about .about-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 6vw, 36px);
  font-weight: 600;
  line-height: 1;
  color: var(--mist);
}

.page-about .about-stat__unit {
  font-size: 12px;
  line-height: 1.6;
  color: var(--fog);
}

.page-about .about-section {
  padding: clamp(44px, 8vw, 92px) 0;
  scroll-margin-top: 96px;
}

.page-about .about-section__head {
  max-width: 70ch;
  margin-bottom: clamp(22px, 4vw, 36px);
}

.page-about .about-section__head .eyebrow {
  color: var(--coral-soft);
  margin-bottom: 12px;
}

.page-about .about-section__head .h2 {
  margin: 0 0 14px;
}

.page-about .about-section__intro {
  max-width: 64ch;
}

/* 运营位置 */
.page-about .about-origin {
  border-top: 1px solid var(--about-hair);
}

.page-about .about-origin__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-about .about-origin__lead .eyebrow {
  color: var(--sand);
  margin-bottom: 12px;
}

.page-about .about-origin__lead .h2 {
  margin: 0 0 16px;
}

.page-about .about-origin__panel {
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, rgba(27, 143, 135, 0.22), rgba(11, 42, 56, 0.7) 62%);
  border: 1px solid var(--about-hair);
}

.page-about .about-panel__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--beacon);
}

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

.page-about .about-panel__list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 12px;
  align-items: baseline;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--about-hair);
}

.page-about .about-panel__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-panel__list .mono {
  font-size: 17px;
  font-weight: 600;
  color: var(--coral-soft);
}

.page-about .about-panel__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--about-hair);
  font-size: 12px;
  line-height: 1.7;
  color: var(--sand);
}

/* 时间轴 */
.page-about .about-timeline {
  background: linear-gradient(180deg, rgba(6, 25, 35, 0), rgba(11, 42, 56, 0.42) 30%, rgba(6, 25, 35, 0));
}

.page-about .about-timeline__figure {
  margin: 0 0 clamp(26px, 5vw, 44px);
}

.page-about .about-timeline__figure .media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--about-hair);
}

.page-about .about-timeline__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-timeline__figure .media__caption {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--fog);
}

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

.page-about .tl-item {
  position: relative;
  padding: 0 0 clamp(26px, 4vw, 40px) 26px;
  border-left: 1px solid var(--about-hair);
}

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

.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--beacon);
  box-shadow: 0 0 0 5px rgba(61, 242, 208, 0.13);
}

.page-about .tl-item:nth-child(2)::before {
  background: var(--sand);
  box-shadow: 0 0 0 5px rgba(232, 213, 181, 0.12);
}

.page-about .tl-item:nth-child(3)::before {
  background: var(--coral);
  box-shadow: 0 0 0 5px rgba(255, 107, 74, 0.14);
}

.page-about .tl-year {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 7vw, 46px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--mist);
  margin-bottom: 12px;
}

.page-about .tl-item:nth-child(2) .tl-year {
  color: var(--sand);
}

.page-about .tl-item:nth-child(3) .tl-year {
  color: var(--coral-soft);
}

.page-about .tl-body .h3 {
  margin: 0 0 10px;
}

.page-about .tl-more {
  overflow: hidden;
}

.page-about .tl-more__text {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--about-hair);
}

.page-about .tl-hint {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--fog);
}

/* 团队 */
.page-about .team-layout {
  display: grid;
  gap: clamp(22px, 4vw, 36px);
}

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

.page-about .team-figure .media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--about-hair);
}

.page-about .team-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .team-figure .media__caption {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--fog);
}

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

.page-about .team-card {
  position: relative;
  padding: 20px 18px 22px;
  border-radius: var(--radius-md);
  background: var(--about-card);
  border: 1px solid var(--about-hair);
  overflow: hidden;
  transition: transform 0.32s var(--ease), border-color 0.32s var(--ease);
}

.page-about .team-card::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--teal);
}

.page-about .team-card:hover,
.page-about .team-card:focus-within {
  transform: translateY(-4px);
}

.page-about .team-card--edit::after {
  background: var(--beacon);
}

.page-about .team-card--ops::after {
  background: var(--sand);
}

.page-about .team-card--version::after {
  background: var(--coral);
}

.page-about .team-card--success::after {
  background: var(--teal);
}

.page-about .team-card__index {
  display: block;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--fog);
  margin-bottom: 10px;
}

.page-about .team-card__title {
  margin: 0 0 6px;
  font-size: 19px;
  font-weight: 500;
  color: var(--mist);
}

.page-about .team-card__kicker {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--coral-soft);
}

.page-about .team-card--ops .team-card__kicker {
  color: var(--sand);
}

.page-about .team-card--version .team-card__kicker {
  color: var(--coral-soft);
}

.page-about .team-card--success .team-card__kicker {
  color: var(--beacon);
}

.page-about .team-card__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--fog);
}

/* 把关 */
.page-about .about-quality {
  border-top: 1px solid var(--about-hair);
}

.page-about .check-flow {
  list-style: none;
  margin: 0 0 clamp(22px, 4vw, 34px);
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: step;
}

.page-about .check-step {
  padding: 20px 18px 22px;
  border-radius: var(--radius-md);
  border: 1px dashed var(--about-hair);
  background: rgba(11, 42, 56, 0.35);
}

.page-about .check-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 12px;
  border-radius: 50%;
  border: 1px solid var(--teal);
  color: var(--beacon);
  font-size: 13px;
  font-weight: 600;
}

.page-about .check-step__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--mist);
}

.page-about .check-step__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--fog);
}

.page-about .quality-facts {
  display: grid;
  gap: 12px;
}

.page-about .quality-fact {
  padding: 22px 20px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--about-hair);
  background: rgba(11, 42, 56, 0.6);
}

.page-about .quality-fact--wide {
  background: linear-gradient(150deg, rgba(255, 107, 74, 0.16), rgba(11, 42, 56, 0.72) 58%);
}

.page-about .quality-fact__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--fog);
}

.page-about .quality-fact__num {
  margin: 0 0 10px;
  font-size: clamp(30px, 7vw, 44px);
  font-weight: 600;
  line-height: 1;
  color: var(--mist);
}

.page-about .quality-fact--wide .quality-fact__num {
  color: var(--coral-soft);
}

.page-about .quality-fact__text {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--fog);
}

/* 收束 */
.page-about .about-why {
  border-top: 1px solid var(--about-hair);
  background: linear-gradient(180deg, rgba(11, 42, 56, 0.5), rgba(6, 25, 35, 0) 78%);
}

.page-about .why-list {
  list-style: none;
  margin: 0 0 clamp(26px, 4vw, 40px);
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .why-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding: 20px 18px 22px;
  border-radius: var(--radius-md);
  border-left: 2px solid var(--teal);
  background: rgba(6, 25, 35, 0.66);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.page-about .why-item:hover {
  border-left-color: var(--coral);
  background: rgba(11, 42, 56, 0.8);
}

.page-about .why-item__num {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--beacon);
}

.page-about .why-item .h3 {
  margin: 0 0 8px;
}

.page-about .why-item__link {
  display: inline-block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--coral-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 154, 122, 0.45);
  padding-bottom: 2px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .why-item__link:hover,
.page-about .why-item__link:focus-visible {
  color: var(--mist);
  border-bottom-color: var(--mist);
}

.page-about .about-cta {
  display: grid;
  gap: 16px;
  padding: clamp(20px, 4vw, 30px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--about-hair);
  background: radial-gradient(circle at 88% 12%, rgba(61, 242, 208, 0.14), transparent 58%), rgba(11, 42, 56, 0.7);
}

.page-about .about-cta__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--sand);
}

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

@media (min-width: 640px) {
  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .tl-item {
    padding-left: 32px;
  }
}

@media (min-width: 860px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: end;
  }

  .page-about .about-origin__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
    align-items: start;
  }

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

  .page-about .tl-more {
    max-height: 0;
    opacity: 0;
    transition: max-height 0.42s var(--ease), opacity 0.3s var(--ease);
  }

  .page-about .tl-item:hover .tl-more,
  .page-about .tl-item:focus-within .tl-more {
    max-height: 220px;
    opacity: 1;
  }

  .page-about .tl-item:hover .tl-hint,
  .page-about .tl-item:focus-within .tl-hint {
    color: var(--coral-soft);
  }

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

  .page-about .quality-facts {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }
}

@media (min-width: 1000px) {
  .page-about .team-layout {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
    align-items: start;
  }

  .page-about .team-figure {
    position: sticky;
    top: 110px;
  }

  .page-about .team-card:nth-child(even) {
    transform: translateY(16px);
  }

  .page-about .team-card:nth-child(even):hover,
  .page-about .team-card:nth-child(even):focus-within {
    transform: translateY(10px);
  }

  .page-about .team-grid {
    padding-bottom: 18px;
  }

  .page-about .why-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }

  .page-about .why-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

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

@media (min-width: 1180px) {
  .page-about .about-hero__copy .display {
    font-size: clamp(46px, 5vw, 68px);
  }

  .page-about .tl {
    padding-left: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-stat,
  .page-about .team-card,
  .page-about .why-item,
  .page-about .tl-more {
    transition: none;
  }

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

  .page-about .team-card:nth-child(even) {
    transform: none;
  }
}