/* ===== 赛场档案 /values/ · 页面作用域 ===== */
.page-about {
  background: var(--turf-deep);
  color: var(--paper);
  overflow-x: hidden;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.1;
}

.page-about p {
  margin: 0 0 1em;
}

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

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(24px, 4.4vw, 52px) 0 clamp(40px, 6vw, 78px);
  background:
    radial-gradient(115% 90% at 92% -10%, rgba(51, 230, 192, 0.13), transparent 58%),
    linear-gradient(178deg, var(--turf-mid) 0%, var(--turf-deep) 74%);
  border-bottom: 1px solid var(--turf-bright);
}

.page-about .about-hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(147, 164, 160, 0.16) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(180deg, rgba(147, 164, 160, 0.09) 0 1px, transparent 1px 72px);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 88%);
}

.page-about .about-hero__shell {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__title {
  font-weight: 900;
  font-size: clamp(32px, 8.2vw, 82px);
  line-height: 1.03;
  letter-spacing: -0.028em;
  margin: 14px 0 0;
  max-width: 13em;
}

.page-about .about-hero__cols {
  display: grid;
  gap: 24px;
  margin-top: clamp(20px, 3vw, 36px);
}

.page-about .about-hero__lede {
  font-size: clamp(15px, 0.9vw + 12.5px, 19px);
  line-height: 1.85;
  color: var(--paper);
  margin: 0;
  max-width: 42em;
}

.page-about .about-hero__aside {
  padding-top: 2px;
  font-size: 13.5px;
  line-height: 1.85;
  margin: 0;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.4vw, 40px);
}

/* ---------- 通用导语 ---------- */
.page-about .about-lede {
  margin: 0 0 clamp(16px, 2vw, 26px);
  font-size: clamp(14.5px, 0.45vw + 13px, 16.5px);
  line-height: 1.85;
  color: rgba(245, 241, 230, 0.85);
  max-width: 44em;
}

/* ---------- 沿革时间轴 ---------- */
.page-about .about-ledger__cols {
  margin-top: clamp(22px, 3vw, 36px);
}

.page-about .about-ledger__index {
  margin-bottom: 30px;
}

.page-about .about-ledger__index-title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cool-gray);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--turf-bright);
}

.page-about .about-ledger__index ol {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-ledger__item {
  flex: 0 0 auto;
}

.page-about .about-ledger__link {
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--cool-gray);
  text-decoration: none;
  padding: 6px 4px;
  white-space: nowrap;
  transition: color 0.18s ease;
  border-bottom: 1px solid transparent;
}

.page-about .about-ledger__link:hover,
.page-about .about-ledger__link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--ref-red);
}

.page-about .about-ledger__link.is-active {
  color: var(--whistle);
  border-bottom-color: var(--whistle);
}

.page-about .about-ledger__yr {
  color: var(--cool-gray);
  transition: color 0.18s ease;
}

.page-about .about-ledger__item:hover .about-ledger__yr,
.page-about .about-ledger__item:focus-within .about-ledger__yr {
  color: var(--whistle);
}

.page-about .about-ledger__brief {
  display: none;
}

.page-about .about-mile {
  position: relative;
  padding-bottom: clamp(28px, 4vw, 48px);
}

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

.page-about .about-mile__yr {
  display: block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--whistle);
  margin: 0 0 8px;
  font-weight: 600;
}

.page-about .about-mile__title {
  font-size: clamp(20px, 1.5vw + 15px, 30px);
  line-height: 1.2;
  margin: 0 0 12px;
  color: var(--paper);
}

.page-about .about-mile__text {
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(245, 241, 230, 0.86);
  margin: 0;
  max-width: 40em;
}

/* ---------- 图片块 ---------- */
.page-about .about-figure {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  padding: 8px;
  border: 1px solid var(--turf-bright);
  background: var(--glass);
}

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

.page-about .about-figure__cap {
  margin: 10px 0 0;
  padding-left: 12px;
  font-size: 12.5px;
  line-height: 1.7;
}

/* ---------- 数字档案条 ---------- */
.page-about .about-dossier {
  position: relative;
  background: var(--ink);
  border-top: 1px solid var(--turf-bright);
  border-bottom: 1px solid var(--turf-bright);
  padding: clamp(36px, 5.4vw, 72px) 0;
}

.page-about .about-dossier__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 24px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-about .about-dossier__title {
  font-size: clamp(22px, 2.2vw + 12px, 34px);
  line-height: 1.16;
  margin: 0;
  color: var(--paper);
}

.page-about .about-dossier__note {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cool-gray);
}

.page-about .about-dossier__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(146px, 1fr));
  gap: 1px;
  background: rgba(28, 122, 86, 0.55);
  border: 1px solid rgba(28, 122, 86, 0.55);
}

.page-about .about-stat {
  background: var(--ink);
  padding: 20px 16px 22px;
  outline: none;
  cursor: default;
  transition: background 0.22s ease;
}

.page-about .about-stat:hover,
.page-about .about-stat:focus-visible {
  background: var(--turf-mid);
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(25px, 3.4vw, 40px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--whistle);
  margin-bottom: 10px;
}

.page-about .about-stat__label {
  display: block;
  font-size: 13.5px;
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-about .about-stat__detail {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--cool-gray);
  transition: max-height 0.28s ease, opacity 0.22s ease, margin 0.28s ease;
}

.page-about .about-stat:hover .about-stat__detail,
.page-about .about-stat:focus-visible .about-stat__detail {
  max-height: 6em;
  opacity: 1;
  margin-top: 10px;
}

/* ---------- 覆盖范围 ---------- */
.page-about .about-reach__cols {
  display: grid;
  gap: clamp(22px, 3.2vw, 42px);
  margin-top: clamp(22px, 3vw, 36px);
}

.page-about .about-reach__figure {
  margin-top: 0;
}

.page-about .about-reach__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  border-top: 1px solid var(--turf-bright);
}

.page-about .about-reach__list li {
  display: grid;
  gap: 3px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(28, 122, 86, 0.42);
}

.page-about .about-reach__key {
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--whistle);
  font-weight: 600;
}

.page-about .about-reach__val {
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(245, 241, 230, 0.86);
}

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

.page-about .about-inline-link {
  display: inline-block;
  font-size: 14.5px;
  color: var(--fluoro);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-about .about-inline-link:hover,
.page-about .about-inline-link:focus-visible {
  border-bottom-color: var(--fluoro);
}

/* ---------- 团队 ---------- */
.page-about .about-crew__grid {
  margin-top: clamp(20px, 3vw, 34px);
  gap: clamp(16px, 2.4vw, 28px);
}

.page-about .about-crew__card {
  background: var(--glass);
  border: 1px solid var(--turf-bright);
  padding: clamp(20px, 2.6vw, 32px);
  transition: border-color 0.22s ease, background 0.22s ease;
}

.page-about .about-crew__card:hover {
  border-color: var(--ref-red);
  background: rgba(245, 241, 230, 0.12);
}

.page-about .about-crew__tag {
  display: inline-block;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--whistle);
  border: 1px solid var(--turf-bright);
  padding: 4px 9px;
  margin: 0 0 16px;
}

.page-about .about-crew__card h3 {
  font-size: clamp(19px, 1.1vw + 14px, 24px);
  line-height: 1.28;
  margin: 0 0 12px;
  color: var(--paper);
}

.page-about .about-crew__card p {
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(245, 241, 230, 0.82);
  margin: 0 0 12px;
}

.page-about .about-crew__foot {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.8;
}

/* ---------- 指标读法 ---------- */
.page-about .about-metrics__cols {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-about .about-metrics__main p {
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(245, 241, 230, 0.86);
  max-width: 40em;
}

.page-about .about-metrics__side {
  padding: clamp(18px, 2.4vw, 28px);
  border-left: 2px solid var(--fluoro);
}

.page-about .about-metrics__side-tag {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--fluoro);
}

.page-about .about-metrics__side p {
  font-size: 13.5px;
  line-height: 1.82;
  color: rgba(245, 241, 230, 0.8);
  margin: 0 0 12px;
}

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

/* ---------- 合作 ---------- */
.page-about .about-partner__list {
  list-style: none;
  margin: clamp(20px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(28, 122, 86, 0.5);
  border: 1px solid rgba(28, 122, 86, 0.5);
}

.page-about .about-partner__item {
  background: var(--turf-deep);
  padding: clamp(18px, 2.4vw, 28px);
  transition: background 0.22s ease;
}

.page-about .about-partner__item:hover {
  background: var(--turf-mid);
}

.page-about .about-partner__code {
  margin: 0 0 10px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--fluoro);
}

.page-about .about-partner__item h3 {
  font-size: clamp(18px, 0.9vw + 14px, 22px);
  line-height: 1.3;
  margin: 0 0 10px;
  color: var(--paper);
}

.page-about .about-partner__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(245, 241, 230, 0.82);
}

.page-about .about-partner__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

/* ---------- 旧物 ---------- */
.page-about .about-relics__cols {
  display: grid;
  gap: clamp(24px, 3.6vw, 46px);
  margin-top: clamp(20px, 3vw, 34px);
}

.page-about .about-relics__stack {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
}

.page-about .about-relic {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid rgba(7, 19, 14, 0.16);
  padding: clamp(18px, 2.4vw, 26px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.3);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-about .about-relic:nth-child(1) { transform: rotate(-0.7deg); }
.page-about .about-relic:nth-child(2) { transform: rotate(0.5deg); }
.page-about .about-relic:nth-child(3) { transform: rotate(-0.35deg); }

.page-about .about-relic:hover {
  transform: rotate(0deg) translateY(-3px);
  box-shadow: 0 20px 34px rgba(0, 0, 0, 0.36);
}

.page-about .about-relic__yr {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--ref-red);
  margin: 0 0 8px;
}

.page-about .about-relic h3 {
  font-size: clamp(17px, 0.7vw + 14px, 21px);
  line-height: 1.3;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-about .about-relic p {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: rgba(7, 19, 14, 0.82);
}

.page-about .about-relics__figure {
  margin-top: 0;
  transform: rotate(0.6deg);
}

.page-about .about-relics__more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
  margin-top: clamp(24px, 3.4vw, 40px);
  padding-top: clamp(20px, 2.6vw, 28px);
  border-top: 1px solid var(--turf-bright);
}

.page-about .about-relics__more-text {
  margin: 0;
  flex: 1 1 22em;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(245, 241, 230, 0.84);
}

/* ---------- 结尾引导 ---------- */
.page-about .about-cta__box {
  position: relative;
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  padding: clamp(26px, 3.6vw, 46px);
  border: 1px solid var(--turf-bright);
  background:
    linear-gradient(135deg, rgba(245, 197, 24, 0.09), transparent 58%),
    var(--turf-mid);
}

.page-about .about-cta__box::before,
.page-about .about-cta__box::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--whistle);
}

.page-about .about-cta__box::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-about .about-cta__box::after {
  right: -1px;
  bottom: -1px;
  border-top: 0;
  border-left: 0;
}

.page-about .about-cta__box h2 {
  font-size: clamp(22px, 2vw + 13px, 33px);
  line-height: 1.18;
  margin: 8px 0 12px;
  color: var(--paper);
}

.page-about .about-cta__box p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(245, 241, 230, 0.85);
  max-width: 38em;
}

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

/* ---------- 移动端优先的断点推进 ---------- */
@media (min-width: 620px) {
  .page-about .about-reach__list li {
    grid-template-columns: minmax(0, 7.5em) minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 820px) {
  .page-about .about-partner__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .about-cta__box {
    grid-template-columns: minmax(0, 1.5fr) auto;
    align-items: center;
  }
}

@media (min-width: 880px) {
  .page-about .about-hero__cols {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: clamp(30px, 5vw, 70px);
    align-items: start;
  }

  .page-about .about-reach__cols {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-about .about-metrics__cols {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-relics__cols {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-about .about-ledger__cols {
    display: grid;
    grid-template-columns: 196px minmax(0, 1fr);
    gap: clamp(30px, 5vw, 62px);
    align-items: start;
  }

  .page-about .about-ledger__index {
    position: sticky;
    top: 26px;
    margin-bottom: 0;
  }

  .page-about .about-ledger__index ol {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-ledger__item {
    flex: none;
    border-left: 2px solid var(--turf-bright);
    padding-left: 12px;
    margin-bottom: 2px;
    transition: border-color 0.2s ease;
  }

  .page-about .about-ledger__item:hover,
  .page-about .about-ledger__item:focus-within {
    border-left-color: var(--ref-red);
  }

  .page-about .about-ledger__link {
    font-size: 15px;
    padding: 4px 0;
  }

  .page-about .about-ledger__brief {
    display: block;
    margin: 0;
    font-size: 12px;
    line-height: 1.6;
    color: var(--cool-gray);
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.26s ease, opacity 0.22s ease, margin 0.26s ease;
  }

  .page-about .about-ledger__item:hover .about-ledger__brief,
  .page-about .about-ledger__item:focus-within .about-ledger__brief {
    max-height: 5em;
    opacity: 1;
    margin: 2px 0 10px;
  }

  .page-about .about-mile {
    border-left: 1px solid var(--turf-bright);
    padding-left: clamp(28px, 3vw, 44px);
  }

  .page-about .about-mile::before {
    content: "";
    position: absolute;
    left: -5px;
    top: 9px;
    width: 9px;
    height: 9px;
    background: var(--whistle);
    transition: background 0.2s ease, transform 0.2s ease;
  }

  .page-about .about-mile:hover::before {
    background: var(--ref-red);
    transform: scale(1.3);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-relic,
  .page-about .about-relic:hover,
  .page-about .about-relics__figure {
    transform: none;
  }

  .page-about .about-stat,
  .page-about .about-stat__detail,
  .page-about .about-ledger__brief,
  .page-about .about-mile::before {
    transition: none;
  }
}