/* ===== 品牌年鉴 /values/ ===== */
.page-about {
  --about-line-soft: rgba(147, 166, 165, .22);
  --about-text-soft: rgba(243, 246, 241, .78);
  padding-top: var(--header-h);
  overflow-x: hidden;
  color: var(--cold);
}

/* —— 面包屑 —— */
.page-about .about-crumbs {
  padding: 20px 0 4px;
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--steel);
}

.page-about .about-crumbs a {
  color: var(--steel);
  text-decoration: none;
}

.page-about .about-crumbs a:hover {
  color: var(--fluo);
}

/* —— 封面 —— */
.page-about .about-cover {
  position: relative;
  overflow: hidden;
  padding: 34px 0 60px;
  background:
    radial-gradient(90% 70% at 4% 0%, rgba(185, 255, 60, .11), transparent 62%),
    radial-gradient(70% 90% at 92% 14%, rgba(63, 142, 139, .28), transparent 70%),
    linear-gradient(180deg, var(--deep-shadow) 0%, var(--deep) 100%);
  border-bottom: 1px solid var(--line);
}

.page-about .about-cover__title {
  margin: 16px 0 0;
  max-width: 18ch;
  color: var(--cold);
}

.page-about .about-cover__lede {
  max-width: 64ch;
  margin: 24px 0 0;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: var(--about-text-soft);
}

.page-about .about-cover__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 36px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-about .about-cover__stats .stat {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(19, 81, 82, .52);
}

.page-about .about-cover__stats .stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(34px, 6vw, 56px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
  color: var(--fluo);
}

.page-about .about-cover__stats .stat__label {
  display: block;
  margin-top: 9px;
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--steel);
}

/* —— 通栏主图 —— */
.page-about .about-hero-figure {
  margin: 0;
  background: var(--deep-shadow);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero-figure .figure__media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

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

.page-about .about-hero-figure .figure__caption {
  padding: 12px max(18px, calc((100vw - var(--wrap)) / 2)) 14px;
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--steel);
}

/* —— 通用区块与标题 —— */
.page-about .section {
  padding: 72px 0;
}

.page-about .section--tight {
  padding: 48px 0 72px;
}

.page-about .about-head {
  max-width: 760px;
}

.page-about .about-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-cover);
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 400;
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--cold);
}

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

/* —— 纵向时间轴 —— */
.page-about .timeline {
  position: relative;
  margin: 44px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .timeline::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--fluo) 0%, var(--bronze) 46%, rgba(147, 166, 165, .2) 100%);
}

.page-about .timeline__item {
  position: relative;
  padding: 0 0 42px 34px;
}

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

.page-about .timeline__item::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--deep-shadow);
  border: 2px solid var(--fluo);
  box-shadow: 0 0 0 5px rgba(185, 255, 60, .1);
}

.page-about .timeline__item--bronze::before {
  border-color: var(--bronze);
  box-shadow: 0 0 0 5px rgba(192, 138, 74, .14);
}

.page-about .timeline__year {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}

.page-about .timeline__num {
  font-family: var(--font-display);
  font-size: clamp(52px, 13vw, 76px);
  font-weight: 800;
  line-height: .92;
  letter-spacing: -.03em;
  font-variant-numeric: tabular-nums;
  color: rgba(243, 246, 241, .7);
}

.page-about .timeline__item--key .timeline__num {
  color: var(--fluo);
}

.page-about .timeline__item--bronze .timeline__num {
  color: var(--bronze);
}

.page-about .timeline__tag {
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--steel);
}

.page-about .timeline__heading {
  margin: 0 0 10px;
  font-family: var(--font-cover);
  font-size: var(--fs-22);
  font-weight: 500;
  line-height: 1.35;
  color: var(--cold);
}

.page-about .timeline__body p {
  margin: 0 0 12px;
  max-width: 64ch;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: var(--about-text-soft);
}

.page-about .timeline__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .timeline__facts li {
  padding: 6px 12px;
  border: 1px solid rgba(185, 255, 60, .26);
  border-radius: 999px;
  font-size: var(--fs-12);
  letter-spacing: .06em;
  color: var(--fluo-cream);
  background: rgba(19, 81, 82, .6);
}

.page-about .timeline__more {
  max-width: 64ch;
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(6, 41, 42, .6);
}

.page-about .timeline__more summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  font-size: var(--fs-14);
  letter-spacing: .04em;
  color: var(--fluo-cream);
  cursor: pointer;
  list-style: none;
}

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

.page-about .timeline__more summary::before {
  content: "+";
  flex: none;
  width: 18px;
  height: 18px;
  line-height: 16px;
  text-align: center;
  border: 1px solid rgba(185, 255, 60, .5);
  border-radius: 50%;
  color: var(--fluo);
  font-size: 13px;
}

.page-about .timeline__more[open] summary::before {
  content: "−";
}

.page-about .timeline__more p {
  margin: 0;
  padding: 0 16px 14px;
  max-width: none;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: rgba(243, 246, 241, .72);
}

.page-about .timeline__more a {
  color: var(--fluo);
  text-decoration: none;
  border-bottom: 1px solid rgba(185, 255, 60, .4);
}

/* —— 统计维度 —— */
.page-about .about-metrics__grid {
  display: grid;
  gap: 36px;
  margin-top: 44px;
}

.page-about .about-dims {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-about .about-dims__item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  column-gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--about-line-soft);
}

.page-about .about-dims__idx {
  grid-row: span 2;
  font-family: var(--font-display);
  font-size: var(--fs-22);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-about .about-dims__name {
  margin: 0 0 6px;
  font-family: var(--font-cover);
  font-size: var(--fs-17);
  font-weight: 600;
  color: var(--cold);
}

.page-about .about-dims__desc {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: rgba(243, 246, 241, .72);
}

.page-about .about-metrics__aside {
  display: grid;
  gap: 24px;
  align-content: start;
}

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

.page-about .about-metrics__figure .figure__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius);
}

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

.page-about .about-metrics__figure .figure__caption {
  margin-top: 10px;
  font-size: var(--fs-12);
  letter-spacing: .05em;
  color: var(--steel);
}

.page-about .about-certs {
  padding: 22px 22px 20px;
}

.page-about .about-certs .card__title {
  margin: 0 0 16px;
  font-family: var(--font-cover);
  font-size: var(--fs-17);
  font-weight: 600;
  color: var(--cold);
}

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

.page-about .about-certs__list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--about-line-soft);
  font-size: var(--fs-14);
  color: rgba(243, 246, 241, .84);
}

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

.page-about .about-certs__lv {
  flex: none;
  min-width: 34px;
  padding: 3px 6px;
  text-align: center;
  border: 1px solid rgba(185, 255, 60, .3);
  border-radius: 5px;
  font-family: var(--font-display);
  font-size: var(--fs-12);
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--fluo);
  background: rgba(185, 255, 60, .12);
}

.page-about .about-certs__note {
  margin: 18px 0 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--steel);
}

.page-about .about-certs__note a {
  color: var(--fluo);
  text-decoration: none;
  border-bottom: 1px solid rgba(185, 255, 60, .4);
}

/* —— 更新节奏 —— */
.page-about .about-cadence__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 40px;
}

.page-about .about-cadence__card {
  position: relative;
  overflow: hidden;
  padding: 28px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--rubber);
}

.page-about .about-cadence__card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--cyan);
}

.page-about .about-cadence__card--quarter::before {
  background: var(--bronze);
}

.page-about .about-cadence__card--year::before {
  background: var(--fluo);
}

.page-about .about-cadence__card--archive::before {
  background: linear-gradient(90deg, var(--fluo), var(--cyan));
}

.page-about .about-cadence__cycle {
  display: inline-block;
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--steel);
}

.page-about .about-cadence__card h3 {
  margin: 12px 0 10px;
  font-family: var(--font-cover);
  font-size: var(--fs-22);
  font-weight: 600;
  color: var(--cold);
}

.page-about .about-cadence__card p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: rgba(243, 246, 241, .72);
}

.page-about .about-cadence__card a {
  color: var(--fluo);
  text-decoration: none;
  border-bottom: 1px solid rgba(185, 255, 60, .4);
}

/* —— 团队 —— */
.page-about .about-team__grid {
  display: grid;
  gap: 20px;
  margin-top: 40px;
}

.page-about .about-team__panel {
  padding: 26px 24px;
}

.page-about .about-team__bar {
  display: flex;
  height: 20px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(147, 166, 165, .16);
}

.page-about .about-team__seg--proof {
  flex: 6;
  background: var(--fluo);
}

.page-about .about-team__seg--rest {
  flex: 11;
  background: var(--cyan);
}

.page-about .about-team__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-14);
  color: rgba(243, 246, 241, .82);
}

.page-about .about-team__legend li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-about .about-team__dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
}

.page-about .about-team__dot--proof {
  background: var(--fluo);
}

.page-about .about-team__dot--rest {
  background: var(--cyan);
}

.page-about .about-team__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--steel);
}

.page-about .about-team__stats {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-about .about-team__stat {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--fluo);
  border-radius: var(--radius-sm);
  background: rgba(19, 81, 82, .45);
}

.page-about .about-team__stat:nth-child(2) {
  border-left-color: var(--bronze);
}

.page-about .about-team__stat:nth-child(3) {
  border-left-color: var(--cyan);
}

.page-about .about-team__stat span {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-32);
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--cold);
}

.page-about .about-team__stat small {
  display: block;
  margin-top: 8px;
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--steel);
}

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

.page-about .about-team__figure .figure__media {
  aspect-ratio: 14 / 10;
  overflow: hidden;
  border-radius: var(--radius);
}

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

.page-about .about-team__figure .figure__caption {
  margin-top: 10px;
  font-size: var(--fs-12);
  letter-spacing: .05em;
  color: var(--steel);
}

/* —— 合作网络与认可 —— */
.page-about .about-network__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin-top: 40px;
}

.page-about .about-network__card {
  padding: 26px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(19, 81, 82, .6), rgba(6, 41, 42, .78));
}

.page-about .about-network__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(40px, 7vw, 56px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
  color: var(--fluo);
}

.page-about .about-network__num em {
  font-style: normal;
  font-size: .5em;
  color: var(--fluo-cream);
}

.page-about .about-network__card--bronze .about-network__num {
  color: var(--bronze);
}

.page-about .about-network__card h3 {
  margin: 14px 0 8px;
  font-family: var(--font-cover);
  font-size: var(--fs-17);
  font-weight: 600;
  color: var(--cold);
}

.page-about .about-network__card p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: rgba(243, 246, 241, .72);
}

.page-about .about-network__serve {
  margin-top: 28px;
  padding: 26px 24px;
  border: 1px dashed rgba(147, 166, 165, .34);
  border-radius: var(--radius);
}

.page-about .about-network__serve h3 {
  margin: 0 0 16px;
  font-family: var(--font-cover);
  font-size: var(--fs-17);
  font-weight: 600;
  color: var(--cold);
}

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

.page-about .about-network__tags li {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: var(--fs-14);
  color: var(--fluo-cream);
  background: rgba(19, 81, 82, .55);
}

.page-about .about-network__more {
  margin: 18px 0 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--steel);
}

.page-about .about-network__more a {
  color: var(--fluo);
  text-decoration: none;
  border-bottom: 1px solid rgba(185, 255, 60, .4);
}

.page-about .about-network__more a:hover {
  border-bottom-color: var(--fluo);
}

/* —— 收尾 —— */
.page-about .about-cta__box {
  display: grid;
  gap: 24px;
  padding: 34px 24px;
  border: 1px solid rgba(185, 255, 60, .24);
  border-radius: var(--radius);
  background:
    radial-gradient(80% 120% at 88% 8%, rgba(185, 255, 60, .16), transparent 62%),
    linear-gradient(120deg, var(--glass), var(--deep-shadow));
}

.page-about .about-cta__box h2 {
  margin: 0;
  font-family: var(--font-cover);
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 500;
  line-height: 1.2;
  color: var(--cold);
}

.page-about .about-cta__box p {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: var(--fs-17);
  line-height: 1.8;
  color: rgba(243, 246, 241, .8);
}

.page-about .about-cta__box .btn {
  justify-self: start;
  white-space: nowrap;
}

/* —— 桌面增强 —— */
@media (min-width: 760px) {
  .page-about .about-cover__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    grid-template-areas:
      "panel stats"
      "figure figure";
  }

  .page-about .about-team__panel {
    grid-area: panel;
  }

  .page-about .about-team__stats {
    grid-area: stats;
  }

  .page-about .about-team__figure {
    grid-area: figure;
  }
}

@media (min-width: 900px) {
  .page-about .timeline::before {
    left: 167px;
  }

  .page-about .timeline__item {
    display: grid;
    grid-template-columns: 168px minmax(0, 1fr);
    column-gap: 48px;
    padding: 0 0 56px 0;
  }

  .page-about .timeline__item::before {
    left: 161px;
    top: 20px;
  }

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

  .page-about .timeline__year {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 0;
  }

  .page-about .timeline__num {
    font-size: clamp(80px, 9vw, 130px);
  }
}

@media (min-width: 1000px) {
  .page-about .about-metrics__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 780px) {
  .page-about .about-cta__box {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 44px 40px;
  }
}

/* —— 窄屏保护 —— */
@media (max-width: 420px) {
  .page-about .about-cover__stats .stat {
    padding: 12px 13px;
  }

  .page-about .about-cadence__card,
  .page-about .about-network__card {
    padding: 22px 18px;
  }

  .page-about .timeline__item {
    padding-left: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition: none !important;
    animation: none !important;
  }
}