.page-about {
  --ab-gap: clamp(20px, 3vw, 40px);
  --ab-pad: clamp(20px, 3.2vw, 44px);
  --ab-shadow: 8px 8px 0 rgba(23, 107, 77, 0.3);
  color: var(--mist);
  padding: clamp(18px, 3vw, 40px) 0 clamp(56px, 8vw, 108px);
  overflow-x: clip;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--mist);
}

.page-about p {
  margin: 0;
}

.page-about .breadcrumbs {
  margin-bottom: clamp(14px, 2.4vw, 26px);
}

/* ---------- 首屏封面 ---------- */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: var(--ab-pad);
  border: 2px solid var(--line);
  background:
    radial-gradient(115% 85% at 88% -5%, rgba(199, 255, 61, 0.22), transparent 58%),
    radial-gradient(85% 80% at 4% 108%, rgba(92, 225, 230, 0.14), transparent 62%),
    linear-gradient(168deg, var(--turf) 0%, var(--turf-deep) 54%, var(--ink) 100%);
  box-shadow: 12px 12px 0 rgba(23, 107, 77, 0.32);
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(243, 246, 239, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243, 246, 239, 0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
}

.page-about .about-kicker {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--volt);
}

.page-about .about-kicker::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--volt);
}

.page-about .about-hero h1 {
  position: relative;
  z-index: 1;
  margin-top: 16px;
  font-size: clamp(32px, 6.4vw, 72px);
  line-height: 1.03;
  max-width: 21ch;
}

.page-about .about-hero-cols {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--ab-gap);
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-about .about-lede {
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--mist-80);
  max-width: 62ch;
}

.page-about .about-hero-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-about .about-hero-facts li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding-left: 14px;
  border-left: 3px solid var(--volt);
}

.page-about .about-fact-num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1;
  color: var(--volt);
  font-variant-numeric: tabular-nums;
}

.page-about .about-fact-label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist-60);
}

.page-about .about-index {
  position: relative;
  z-index: 1;
  margin-top: clamp(20px, 3vw, 34px);
  padding-top: 16px;
  border-top: 2px solid var(--line-soft);
}

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

.page-about .about-index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: 2px solid var(--line-soft);
  color: var(--mist-80);
  text-decoration: none;
  font-size: 13px;
  transition: border-color var(--step) var(--ease), color var(--step) var(--ease), background-color var(--step) var(--ease);
}

.page-about .about-index-link:hover,
.page-about .about-index-link:focus-visible {
  border-color: var(--volt);
  background: rgba(199, 255, 61, 0.12);
  color: var(--volt-soft);
  outline: none;
}

.page-about .about-index-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--blueprint);
}

/* ---------- 通用区块 ---------- */
.page-about .about-block {
  margin-top: clamp(34px, 5vw, 66px);
  padding-top: clamp(26px, 4vw, 48px);
  border-top: 2px solid var(--line-faint);
  scroll-margin-top: 32px;
}

.page-about .about-head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-about .about-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1;
  color: var(--line);
  letter-spacing: 0.04em;
}

.page-about .about-head h2 {
  font-size: clamp(24px, 3.4vw, 42px);
  line-height: 1.1;
  max-width: 26ch;
}

.page-about .about-dek {
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-60);
  max-width: 60ch;
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.page-about .about-body p {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist-80);
  margin-bottom: 16px;
  max-width: 68ch;
}

.page-about .about-note {
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel);
  margin-top: clamp(16px, 2.4vw, 26px);
  padding-left: 14px;
  border-left: 3px solid var(--line-soft);
}

.page-about .about-inline-link {
  color: var(--volt);
  text-decoration: none;
  border-bottom: 2px solid rgba(199, 255, 61, 0.4);
  transition: border-color var(--step) var(--ease), color var(--step) var(--ease);
}

.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  color: var(--volt-soft);
  border-color: var(--volt);
  outline: none;
}

.page-about .about-split {
  display: grid;
  gap: var(--ab-gap);
  align-items: start;
}

/* ---------- 图片框 ---------- */
.page-about .about-figure {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--turf-deep);
  box-shadow: var(--ab-shadow);
  min-width: 0;
}

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

.page-about .about-figure figcaption {
  padding: 11px 14px;
  border-top: 2px solid var(--line-faint);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--steel);
}

.page-about .about-figure--wide {
  margin-top: clamp(20px, 3vw, 34px);
}

/* ---------- 流程 ---------- */
.page-about .about-flow-svg {
  display: block;
  width: 100%;
  height: 76px;
  margin-bottom: 14px;
}

.page-about .about-steps {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-step {
  min-width: 0;
  padding: 16px 15px 18px;
  border: 2px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(14, 59, 46, 0.55), var(--turf-deep));
  transition:
    border-color var(--step) var(--ease),
    box-shadow var(--step) var(--ease),
    transform var(--step) var(--ease),
    background-color var(--step) var(--ease);
}

.page-about .about-step:hover,
.page-about .about-step:focus-visible {
  border-color: var(--volt);
  box-shadow: 6px 6px 0 rgba(199, 255, 61, 0.2);
  transform: translate(-2px, -2px);
  outline: none;
}

.page-about .about-step:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 2px;
}

.page-about .about-step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--blueprint);
  margin-bottom: 8px;
}

.page-about .about-step h3 {
  font-size: 17px;
  line-height: 1.3;
  margin-bottom: 8px;
}

.page-about .about-step p {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist-60);
}

.page-about .about-step-more {
  margin-top: 10px;
  padding-top: 9px;
  border-top: 1px dashed var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--steel);
  transition: color var(--step) var(--ease);
}

.page-about .about-step:hover .about-step-more,
.page-about .about-step:focus-visible .about-step-more {
  color: var(--volt-soft);
}

/* ---------- 赛季数据 ---------- */
.page-about .about-stats {
  display: grid;
  gap: 2px;
  grid-template-columns: minmax(0, 1fr);
  background: var(--line-faint);
  border: 2px solid var(--line);
}

.page-about .about-stat {
  min-width: 0;
  padding: clamp(15px, 2.2vw, 24px);
  background: linear-gradient(155deg, var(--turf) 0%, var(--turf-deep) 78%);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .about-stat-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.8vw, 44px);
  line-height: 1;
  color: var(--volt);
  font-variant-numeric: tabular-nums;
}

.page-about .about-stat-label {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist-60);
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: var(--ab-gap);
  align-items: start;
}

.page-about .about-team-figure {
  overflow: hidden;
}

.page-about .about-team-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
  min-width: 0;
}

.page-about .about-team-card {
  min-width: 0;
  padding: 16px 16px 18px;
  border: 2px solid var(--line-soft);
  border-left-width: 6px;
  background: rgba(10, 21, 18, 0.9);
  transition: border-color var(--step) var(--ease), background-color var(--step) var(--ease);
}

.page-about .about-team-card:hover,
.page-about .about-team-card:focus-visible {
  border-color: var(--volt);
  background: rgba(14, 59, 46, 0.72);
  outline: none;
}

.page-about .about-team-card h3 {
  font-size: 17px;
  line-height: 1.3;
  margin-bottom: 8px;
}

.page-about .about-team-card p {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist-60);
}

.page-about .about-team-more {
  margin-top: 10px;
  padding-top: 9px;
  border-top: 1px dashed var(--line-soft);
  font-size: 12.5px;
  color: var(--steel);
  transition: color var(--step) var(--ease);
}

.page-about .about-team-card:hover .about-team-more,
.page-about .about-team-card:focus-visible .about-team-more {
  color: var(--mist);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-timeline-item {
  position: relative;
  min-width: 0;
  padding: 16px 16px 18px 40px;
  border: 2px solid var(--line-faint);
  background: var(--turf-deep);
  transition: border-color var(--step) var(--ease), box-shadow var(--step) var(--ease);
}

.page-about .about-timeline-item::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 0;
  bottom: -14px;
  width: 2px;
  background: var(--line-faint);
}

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

.page-about .about-timeline-dot {
  position: absolute;
  left: 9px;
  top: 20px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--line);
  background: var(--ink);
  transition: border-color var(--step) var(--ease), background-color var(--step) var(--ease);
}

.page-about .about-timeline-item:hover,
.page-about .about-timeline-item:focus-visible {
  border-color: var(--volt);
  box-shadow: 6px 6px 0 rgba(199, 255, 61, 0.16);
  outline: none;
}

.page-about .about-timeline-item:hover .about-timeline-dot,
.page-about .about-timeline-item:focus-visible .about-timeline-dot {
  border-color: var(--volt);
  background: var(--volt);
}

.page-about .about-timeline-stage {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--heat);
  margin-bottom: 8px;
}

.page-about .about-timeline-item h3 {
  font-size: 18px;
  line-height: 1.32;
  margin-bottom: 8px;
}

.page-about .about-timeline-item p:last-child {
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist-60);
  max-width: 62ch;
}

/* ---------- 选择理由 ---------- */
.page-about .about-reasons {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1fr);
}

.page-about .about-reason {
  min-width: 0;
  padding: 18px 16px 20px;
  border-top: 4px solid var(--volt);
  background: linear-gradient(180deg, rgba(14, 59, 46, 0.5), transparent 70%);
}

.page-about .about-reason h3 {
  font-size: 17px;
  line-height: 1.34;
  margin-bottom: 10px;
}

.page-about .about-reason p {
  font-size: 13.8px;
  line-height: 1.75;
  color: var(--mist-60);
}

/* ---------- 收束 ---------- */
.page-about .about-cta {
  margin-top: clamp(26px, 4vw, 44px);
  padding: clamp(20px, 3vw, 32px);
  border: 2px solid var(--volt);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(199, 255, 61, 0.18), transparent 60%),
    var(--ink);
  display: grid;
  gap: 18px;
  align-items: center;
}

.page-about .about-cta-text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-80);
  max-width: 46ch;
}

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

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .about-hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

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

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

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

@media (min-width: 900px) {
  .page-about .about-hero-cols {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.8fr);
    align-items: start;
  }

  .page-about .about-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(24px, 3.6vw, 52px);
  }

  .page-about .about-head {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: end;
    gap: 18px;
  }

  .page-about .about-timeline-item {
    padding: 20px 22px 22px 46px;
  }

  .page-about .about-timeline-item::before {
    left: 19px;
  }

  .page-about .about-timeline-dot {
    left: 13px;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(24px, 3.6vw, 48px);
  }
}

@media (min-width: 1040px) {
  .page-about .about-flow-svg {
    height: 96px;
  }

  .page-about .about-steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-about .about-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-step,
  .page-about .about-step-more,
  .page-about .about-team-card,
  .page-about .about-team-more,
  .page-about .about-timeline-item,
  .page-about .about-timeline-dot,
  .page-about .about-index-link,
  .page-about .about-inline-link {
    transition: none;
  }

  .page-about .about-step:hover,
  .page-about .about-step:focus-visible {
    transform: none;
  }
}