/* ===== 品牌档案页 /who-we-are/ ===== */
.page-about {
  --about-cut: 18px;
  --about-soft: rgba(237, 231, 218, .78);
  --about-dim: rgba(142, 154, 150, .92);
  background: var(--forest);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.page-about h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.14;
  letter-spacing: -.006em;
  color: var(--white);
  margin: 0;
}

.page-about h3 {
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.3;
  letter-spacing: .005em;
  color: var(--paper);
  margin: 0;
}

.page-about a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-about a:hover,
.page-about a:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(20px, 4vw, 40px) 0 0;
  background: var(--forest);
  isolation: isolate;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(116deg, transparent 0 43%, var(--night) 43% 100%);
  z-index: 0;
  pointer-events: none;
}

.page-about .about-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-about .about-hero .breadcrumbs {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

@media (min-width: 880px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

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

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.82) contrast(1.06);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -.012em;
  color: var(--white);
  margin: 14px 0 0;
  max-width: 15em;
}

.page-about .about-hero__lede {
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.9;
  color: var(--about-soft);
  max-width: 34em;
  margin: 20px 0 0;
}

.page-about .about-hero__facts {
  list-style: none;
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
}

.page-about .about-hero__facts li {
  flex: 1 1 110px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 20px 4px 0;
  min-width: 0;
}

.page-about .about-hero__facts .num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--gold);
  line-height: 1;
}

.page-about .about-hero__facts em {
  font-style: normal;
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--about-dim);
}

/* ---------- 首屏时间轴开端 ---------- */
.page-about .about-axis {
  position: relative;
  z-index: 1;
  margin-top: clamp(34px, 6vw, 70px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(14, 27, 46, .7), rgba(11, 43, 38, 0));
}

.page-about .about-axis__inner {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 34px);
  overflow-x: auto;
  padding-top: 20px;
  padding-bottom: 22px;
  scrollbar-width: thin;
}

.page-about .about-axis__label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .28em;
  color: var(--about-dim);
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

.page-about .about-axis__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: clamp(26px, 6vw, 84px);
}

.page-about .about-axis__item {
  position: relative;
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-left: 18px;
}

.page-about .about-axis__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% 66%, 66% 100%, 0 100%);
}

.page-about .about-axis__item--now::before {
  background: var(--orange);
}

.page-about .about-axis__year {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--white);
  line-height: 1;
}

.page-about .about-axis__note {
  font-size: 12.5px;
  color: var(--about-dim);
  white-space: nowrap;
}

/* ---------- 章节通用 ---------- */
.page-about .about-sect {
  padding: clamp(52px, 9vw, 116px) 0;
}

.page-about .about-sect__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

@media (min-width: 900px) {
  .page-about .about-sect__grid {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: clamp(24px, 4vw, 58px);
  }
}

.page-about .section-num {
  margin: 0 0 10px;
  padding-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .3em;
  color: var(--gold);
  border-bottom: 1px solid var(--line);
}

@media (min-width: 900px) {
  .page-about .section-num {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    margin: 6px 0 0;
    padding: 0 0 0 13px;
    border-bottom: 0;
    border-left: 1px solid var(--line);
    align-self: start;
  }
}

.page-about .about-sect__lede {
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.9;
  color: var(--about-soft);
  max-width: 40em;
  margin: 18px 0 0;
}

.page-about .about-sect__foot {
  margin: clamp(28px, 3.6vw, 44px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--about-soft);
  max-width: 44em;
}

/* ---------- C-01 流程 ---------- */
.page-about .about-sect--flow {
  background: var(--forest);
}

.page-about .flow-list {
  list-style: none;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-about .flow-list__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
}

@media (min-width: 800px) {
  .page-about .flow-list__item {
    grid-template-columns: 88px minmax(0, 232px) minmax(0, 1fr);
    gap: 8px 26px;
    align-items: baseline;
    padding: 26px 0;
  }
}

.page-about .flow-list__no {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--orange);
  line-height: 1.2;
}

.page-about .flow-list__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--about-soft);
}

/* ---------- C-02 数据线 ---------- */
.page-about .about-sect--team {
  background: var(--night-deep);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .about-team__banner {
  margin: 0 0 clamp(36px, 5vw, 64px);
  position: relative;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 32px 100%, 0 calc(100% - 32px));
}

.page-about .about-team__banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.8) brightness(.86);
}

.page-about .tracks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(34px, 4.6vw, 56px);
}

@media (min-width: 720px) and (max-width: 999px) {
  .page-about .tracks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-about .tracks {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
  }

  .page-about .track:nth-child(1) { margin-top: 0; }
  .page-about .track:nth-child(2) { margin-top: 40px; }
  .page-about .track:nth-child(3) { margin-top: 14px; }
  .page-about .track:nth-child(4) { margin-top: 56px; }
}

.page-about .track {
  position: relative;
  padding: 24px 20px 26px;
  background: var(--forest-deep);
  clip-path: polygon(0 0, calc(100% - var(--about-cut)) 0, 100% var(--about-cut), 100% 100%, var(--about-cut) 100%, 0 calc(100% - var(--about-cut)));
  transition: transform .28s var(--ease);
}

.page-about .track--schedule { background: #0A2A24; }
.page-about .track--bracket  { background: #10203A; }
.page-about .track--player   { background: var(--indigo); }
.page-about .track--review   { background: var(--wine); }

.page-about .track:hover,
.page-about .track:focus-within {
  transform: translateY(-2px);
}

.page-about .track__tag {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-about .track__name {
  font-size: clamp(17px, 1.7vw, 20px);
  color: var(--white);
}

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

.page-about .track__duties {
  list-style: none;
  margin: 18px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-about .track__duties li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--about-dim);
}

.page-about .track__duties li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 7px;
  height: 1px;
  background: var(--gold);
}

.page-about .track__freq {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--moss);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity .28s var(--ease), transform .28s var(--ease);
}

.page-about .track__freq-k {
  display: inline-block;
  margin-right: 8px;
  color: var(--graphite);
}

@media (hover: hover) and (pointer: fine) {
  .page-about .track:hover .track__freq,
  .page-about .track:focus-within .track__freq {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (hover: none) {
  .page-about .track__freq {
    opacity: 1;
    transform: none;
  }
}

/* ---------- C-03 时间轴 ---------- */
.page-about .about-sect--timeline {
  background: var(--forest);
}

.page-about .mile {
  list-style: none;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-about .mile__item {
  border-bottom: 1px solid var(--line-soft);
}

.page-about .mile__node {
  display: block;
}

.page-about .mile__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  list-style: none;
  cursor: pointer;
  padding: 18px 0;
  position: relative;
}

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

.page-about .mile__year {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--gold);
  line-height: 1.1;
  flex: 0 0 auto;
}

.page-about .mile__name {
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: .04em;
  color: var(--paper);
}

.page-about .mile__plus {
  margin-left: auto;
  align-self: center;
  width: 14px;
  height: 14px;
  position: relative;
  flex: 0 0 auto;
  transition: transform .28s var(--ease);
}

.page-about .mile__plus::before,
.page-about .mile__plus::after {
  content: "";
  position: absolute;
  background: var(--orange);
}

.page-about .mile__plus::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-about .mile__plus::after {
  top: 0;
  left: 6px;
  width: 2px;
  height: 14px;
}

.page-about .mile__node[open] .mile__plus {
  transform: rotate(45deg);
}

.page-about .mile__node[open] .mile__head {
  border-bottom: 1px dashed var(--line-soft);
}

.page-about .mile__panel {
  padding: 16px 0 22px;
}

.page-about .mile__panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--about-soft);
  max-width: 36em;
}

@media (min-width: 900px) {
  .page-about .mile {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    align-items: start;
  }

  .page-about .mile__item {
    border-bottom: 0;
  }

  .page-about .mile__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 0 18px 18px 0;
    border-bottom: 2px solid var(--gold);
  }

  .page-about .mile__plus {
    position: absolute;
    right: 12px;
    top: 6px;
    margin-left: 0;
    align-self: flex-start;
  }

  .page-about .mile__year {
    font-size: clamp(20px, 2.2vw, 28px);
    color: var(--white);
  }

  .page-about .mile__name {
    font-size: 14px;
    letter-spacing: .06em;
    color: var(--gold);
  }

  .page-about .mile__node[open] .mile__head {
    border-bottom-style: solid;
    border-bottom-color: var(--orange);
  }

  .page-about .mile__panel {
    padding: 18px 18px 0 0;
  }
}

/* ---------- C-04 合作伙伴 ---------- */
.page-about .about-sect--partners {
  background: var(--night-deep);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-about .partners__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(30px, 4vw, 48px);
  align-items: start;
}

@media (min-width: 900px) {
  .page-about .partners__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

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

.page-about .partner-list__item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-about .partner-list__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--gold);
  padding-top: 4px;
}

.page-about .partner-list__body h3 {
  color: var(--white);
}

.page-about .partner-list__body p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.88;
  color: var(--about-soft);
}

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

.page-about .partners__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  filter: saturate(.78) brightness(.9);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-about .partners__figure figcaption {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--about-dim);
}

/* ---------- C-05 差异点 ---------- */
.page-about .about-sect--why {
  background: var(--forest);
}

.page-about .why {
  margin-top: clamp(30px, 4vw, 46px);
  border-top: 1px solid var(--line);
}

.page-about .why__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line-soft);
}

@media (min-width: 800px) {
  .page-about .why__row {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 30px;
    align-items: baseline;
  }
}

.page-about .why__k {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-about .why__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--about-soft);
  max-width: 42em;
}

/* ---------- 结尾 ---------- */
.page-about .about-cta {
  background: linear-gradient(112deg, var(--indigo) 0 58%, var(--wine) 58% 100%);
  border-top: 1px solid var(--line);
  padding: clamp(48px, 7vw, 92px) 0;
}

.page-about .about-cta__inner {
  max-width: 46em;
}

.page-about .about-cta__title {
  font-size: clamp(24px, 3.4vw, 38px);
  color: var(--white);
  margin: 12px 0 0;
}

.page-about .about-cta__text {
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.92;
  color: rgba(237, 231, 218, .88);
  max-width: 36em;
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.page-about .about-cta__actions .btn {
  border-bottom: 0;
}

@media (prefers-reduced-motion: reduce) {
  .page-about .track,
  .page-about .track__freq,
  .page-about .mile__plus,
  .page-about a {
    transition: none !important;
  }
}