/* ===== 品牌愿景页 · page-about ===== */
.page-about {
  --about-rail-w: 200px;
  --about-cyan-soft: rgba(0, 229, 255, 0.06);
  --about-cyan-line: rgba(0, 229, 255, 0.38);
  --about-violet-soft: rgba(124, 77, 255, 0.16);
  display: block;
  background: var(--bg);
  color: var(--ink);
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about .breadcrumb {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding: 26px 0 52px;
}

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

.page-about .about-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.3rem, 7.4vw, 4.8rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-about .about-hero__lead {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-hero__lead strong {
  color: var(--ink);
  font-weight: 500;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 14px;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
}

.page-about .about-stat dt {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-about .about-stat dd {
  margin: 6px 0 0;
}

.page-about .about-stat__num {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}

.page-about .about-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

.page-about .about-hero__media img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 主体两栏 ---------- */
.page-about .about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-about .about-flow {
  min-width: 0;
}

/* ---------- 档案卡 ---------- */
.page-about .about-card {
  padding: 30px 0;
  border-top: 1px solid var(--line);
}

.page-about .about-card:last-child {
  border-bottom: 1px solid var(--line);
}

.page-about .about-card__grid {
  display: grid;
  gap: 14px;
  min-width: 0;
}

.page-about .about-card__num {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--mist);
  opacity: 0.42;
  transition: color var(--t) var(--ease), opacity var(--t) var(--ease);
}

.page-about .about-card:hover .about-card__num {
  color: var(--violet);
  opacity: 1;
}

.page-about .about-card__inner {
  min-width: 0;
  padding: 22px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: transform var(--t) var(--ease), background var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-about .about-card--glass .about-card__inner {
  background: var(--glass);
  border-color: var(--line);
  backdrop-filter: blur(10px);
}

.page-about .about-card--solid .about-card__inner {
  background: var(--panel);
  border-color: var(--line);
}

.page-about .about-card:hover .about-card__inner {
  transform: translateY(-2px);
}

.page-about .about-card--glass:hover .about-card__inner {
  background: var(--glass-strong);
}

.page-about .about-card__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.35rem, 3vw, 1.95rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .about-card__inner p {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-card__inner a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--about-cyan-line);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-about .about-card__inner a:hover {
  color: var(--ink);
  border-bottom-color: var(--cyan);
}

.page-about .about-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  font-weight: 500;
}

.page-about .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  color: var(--magenta);
  font-weight: 500;
}

/* ---------- 赛区覆盖带 ---------- */
.page-about .about-zones {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-zone {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  min-height: 98px;
  padding: 14px 12px;
  border: 1px solid var(--about-cyan-line);
  border-radius: var(--radius);
  background: var(--about-cyan-soft);
  color: var(--ink);
  text-decoration: none;
  transition: background var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.page-about .about-zone__name {
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: 0.04em;
}

.page-about .about-zone__note {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-about .about-zone--home {
  background: linear-gradient(160deg, rgba(124, 77, 255, 0.42), rgba(30, 20, 64, 0.9));
  border-color: var(--violet);
}

.page-about .about-zone--home .about-zone__note {
  color: var(--mist);
}

.page-about .about-zone:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: rgba(0, 229, 255, 0.13);
}

.page-about .about-zone--home:hover {
  background: linear-gradient(160deg, rgba(124, 77, 255, 0.62), rgba(30, 20, 64, 0.96));
}

.page-about .about-zones__map {
  margin: 20px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--rail);
}

.page-about .about-zones__map img {
  display: block;
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ---------- 版本阶梯 ---------- */
.page-about .about-ladder {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-step {
  display: flex;
  flex-direction: column;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--violet);
  border-radius: var(--radius);
  background: var(--rail);
}

.page-about .about-step__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--mist);
}

.page-about .about-step__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.1rem;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-about .about-step p {
  margin: 10px 0 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-about .about-step--v3 {
  border-top-color: var(--cyan);
  background: linear-gradient(180deg, rgba(0, 229, 255, 0.09), var(--rail) 62%);
}

.page-about .about-step .tag {
  align-self: flex-start;
  margin-top: 14px;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: 22px;
  margin-top: 20px;
}

.page-about .about-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-team-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.page-about .about-team-table__caption {
  padding-bottom: 12px;
  text-align: left;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-about .about-team-table th,
.page-about .about-team-table td {
  padding: 12px 10px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.page-about .about-team-table thead th {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-about .about-team-table tbody th {
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
}

.page-about .about-team-table tbody td:last-child {
  color: var(--mist);
  line-height: 1.7;
}

.page-about .about-team-table tbody tr:hover {
  background: var(--about-violet-soft);
}

.page-about .about-team__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

.page-about .about-team__media img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 右侧章节索引 ---------- */
.page-about .about-index {
  display: none;
}

.page-about .about-index__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-about .about-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-index__list .index-link {
  display: block;
  padding: 8px 10px;
  font-size: 0.82rem;
  color: var(--muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-about .about-index__list .index-link:hover {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-about .about-index__list .index-link.is-active {
  color: var(--ink);
  border-left-color: var(--violet);
  background: var(--glass);
}

/* ---------- 结尾行动区 ---------- */
.page-about .about-cta {
  margin-top: 40px;
  padding: 44px 0 56px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(124, 77, 255, 0.12), transparent 70%);
}

.page-about .about-cta__inner {
  display: grid;
  gap: 24px;
  align-items: center;
}

.page-about .about-cta__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .about-cta__text p {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--mist);
}

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

/* ---------- 媒体查询 ---------- */
@media (min-width: 640px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .about-ladder {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: end;
    gap: 14px;
  }

  .page-about .about-step--v1 {
    min-height: 178px;
  }

  .page-about .about-step--v2 {
    min-height: 214px;
  }

  .page-about .about-step--v3 {
    min-height: 252px;
  }

  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 36px;
  }

  .page-about .about-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 760px) {
  .page-about .about-card__grid {
    grid-template-columns: 96px minmax(0, 1fr);
    column-gap: 32px;
  }

  .page-about .about-card {
    padding: 38px 0;
  }

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

  .page-about .about-zones {
    grid-template-columns: repeat(7, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 48px;
    align-items: center;
  }

  .page-about .about-hero {
    padding: 34px 0 62px;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: start;
  }
}

@media (min-width: 1040px) {
  .page-about .about-layout {
    grid-template-columns: minmax(0, 1fr) var(--about-rail-w);
    column-gap: 56px;
    align-items: start;
  }

  .page-about .about-index {
    display: block;
    position: sticky;
    top: 120px;
    padding-top: 38px;
  }

  .page-about .about-card__grid {
    grid-template-columns: 112px minmax(0, 1fr);
    column-gap: 40px;
  }

  .page-about .about-card__num {
    font-size: 3.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-card__inner,
  .page-about .about-card__num,
  .page-about .about-zone,
  .page-about .about-card__inner a,
  .page-about .about-index__list .index-link {
    transition: none;
  }

  .page-about .about-card:hover .about-card__inner,
  .page-about .about-zone:hover {
    transform: none;
  }
}