.page-about {
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-top: clamp(20px, 4vw, 40px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-about .about-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(40px, 9vw, 96px);
  line-height: 0.96;
  letter-spacing: -0.01em;
  margin: 16px 0 24px;
  color: var(--paper);
}

.page-about .about-hero__lede {
  max-width: 60ch;
  font-size: 18px;
  line-height: 1.7;
  color: var(--muted);
  margin: 0 0 clamp(32px, 5vw, 48px);
}

.page-about .about-hero__stats {
  list-style: none;
  margin: 0;
  padding: 24px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.page-about .about-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 16px;
  border-left: 2px solid var(--yellow);
}

.page-about .about-hero__num {
  font-family: var(--font-mono);
  font-size: clamp(34px, 6vw, 48px);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--yellow);
}

.page-about .about-hero__num small {
  font-size: 0.5em;
  margin-left: 2px;
}

.page-about .about-hero__unit {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--paper);
}

.page-about .about-hero__cap {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-sec {
  position: relative;
  padding: clamp(48px, 8vw, 96px) var(--gutter);
}

.page-about .about-sec--band {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-sec > * {
  max-width: var(--shell);
  margin-left: auto;
  margin-right: auto;
}

.page-about .about-head {
  margin-bottom: clamp(28px, 5vw, 44px);
}

.page-about .about-head__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--yellow);
  margin-bottom: 12px;
}

.page-about .about-head__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 0 0 14px;
  color: var(--paper);
}

.page-about .about-head__lede {
  max-width: 58ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 媒体容器 ---------- */
.page-about .cmd-media {
  margin: 0;
  position: relative;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

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

.page-about .cmd-media .cmd-media__tag {
  position: absolute;
  left: 14px;
  bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink);
  background: var(--yellow);
  border-radius: var(--r-pill);
  padding: 5px 12px;
}

/* ---------- 01 品牌自述 ---------- */
.page-about .about-story__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-about .about-story__copy p {
  margin: 0 0 1.1em;
  font-size: 16px;
  line-height: 1.8;
  max-width: 56ch;
}

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

.page-about .about-story__media {
  border-radius: var(--r-md);
}

/* ---------- 02 索引 ---------- */
.page-about .about-index__leagues {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: clamp(24px, 4vw, 36px);
}

.page-about .about-index__leagues-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-right: 4px;
}

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

.page-about .about-index__leagues li {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  padding: 6px 14px;
}

.page-about .about-index__media {
  margin-bottom: clamp(28px, 4vw, 40px);
  border-radius: var(--r-md);
}

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

.page-about .about-index__season {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 6px 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.page-about .about-index__year {
  grid-column: 1;
  grid-row: 1;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--yellow);
}

.page-about .about-index__note {
  grid-column: 2;
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--paper);
  opacity: 0.86;
}

.page-about .about-index__jump {
  grid-column: 2;
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease);
}

.page-about .about-index__jump:hover,
.page-about .about-index__jump:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 03 编年史 ---------- */
.page-about .about-timeline {
  position: relative;
  margin-top: 8px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: var(--r-pill);
  background: linear-gradient(180deg, var(--yellow) 0%, var(--line) 72%);
}

.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 32px 32px;
}

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

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: var(--r-pill);
  background: var(--ink);
  border: 2px solid var(--yellow);
  box-sizing: border-box;
}

.page-about .about-sec--band .about-timeline__item::before {
  background: var(--ink-2);
}

.page-about .about-timeline__ver {
  display: block;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--yellow);
}

.page-about .about-timeline__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 10px 0 10px;
  color: var(--paper);
}

.page-about .about-timeline__item p {
  margin: 0 0 10px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.86;
  max-width: 46ch;
}

.page-about .about-timeline__fix {
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  border-left: 2px solid var(--line);
  padding-left: 12px;
  opacity: 1;
}

.page-about .about-timeline__fix strong {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--cyan);
  margin-bottom: 2px;
}

/* ---------- 04 流程 ---------- */
.page-about .about-flow {
  display: grid;
  gap: 14px;
}

.page-about .about-flow__step {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink);
  padding: 22px 20px;
}

.page-about .about-sec--band .about-flow__step {
  background: var(--ink);
}

.page-about .about-flow__step--key {
  border-color: var(--yellow);
  background: rgba(255, 212, 0, 0.07);
}

.page-about .about-flow__stepnum {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--yellow);
  margin-bottom: 10px;
}

.page-about .about-flow__step h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  color: var(--paper);
}

.page-about .about-flow__step p {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-flow__media {
  margin-top: clamp(28px, 4vw, 44px);
  border-radius: var(--r-md);
}

/* ---------- 05 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
}

.page-about .about-bars {
  display: grid;
  gap: 22px;
  align-content: start;
}

.page-about .about-bar {
  display: grid;
  grid-template-columns: 80px 1fr auto;
  align-items: center;
  gap: 12px;
}

.page-about .about-bar:nth-child(1) .about-bar__fill {
  width: 100%;
}

.page-about .about-bar:nth-child(2) .about-bar__fill {
  width: 57%;
}

.page-about .about-bar:nth-child(3) .about-bar__fill {
  width: 21%;
}

.page-about .about-bar__label {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-about .about-bar__track {
  display: block;
  height: 10px;
  border-radius: var(--r-pill);
  background: var(--line);
  overflow: hidden;
}

.page-about .about-bar__fill {
  display: block;
  height: 100%;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--yellow) 0%, var(--yellow-soft) 100%);
  transition: width 400ms var(--ease);
}

.page-about .about-bar:nth-child(2) .about-bar__fill {
  background: var(--cyan);
}

.page-about .about-bar:nth-child(3) .about-bar__fill {
  background: var(--muted);
}

.page-about .about-bar__val {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--paper);
  min-width: 48px;
  text-align: right;
}

.page-about .about-team__audience h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
  color: var(--paper);
}

.page-about .about-team__audience ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-team__audience li {
  padding-left: 16px;
  border-left: 2px solid var(--line);
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-team__audience strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin-bottom: 4px;
}

/* ---------- 06 合作 ---------- */
.page-about .about-partners__grid {
  display: grid;
  gap: 16px;
}

.page-about .about-partners__card {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink);
  padding: 24px 22px;
}

.page-about .about-partners__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
  color: var(--yellow);
  margin-bottom: 12px;
}

.page-about .about-partners__card h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  color: var(--paper);
}

.page-about .about-partners__card p {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-partners__card--award {
  background: var(--yellow);
  border-color: var(--yellow);
}

.page-about .about-partners__card--award .about-partners__num {
  color: var(--ink);
}

.page-about .about-partners__card--award h3 {
  color: var(--ink);
}

.page-about .about-partners__card--award p {
  color: var(--ink);
  opacity: 0.78;
}

.page-about .about-cta {
  margin-top: clamp(32px, 5vw, 48px);
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.page-about .about-cta p {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-about .about-flow {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

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

@media (min-width: 860px) {
  .page-about .about-flow {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-about .about-flow__step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -13px;
    width: 10px;
    height: 2px;
    background: var(--line);
  }

  .page-about .about-flow__step--key:not(:last-child)::after {
    background: var(--yellow);
  }
}

@media (min-width: 900px) {
  .page-about .about-story__grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-about .about-team__grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-about .about-index__season {
    grid-template-columns: 96px 1fr;
  }

  .page-about .about-timeline::before {
    left: 50%;
    transform: translateX(-1px);
  }

  .page-about .about-timeline__item {
    width: calc(50% - 44px);
    padding: 0 0 44px 0;
  }

  .page-about .about-timeline__item::before {
    top: 8px;
  }

  .page-about .about-timeline__item:nth-child(odd) {
    margin-right: auto;
  }

  .page-about .about-timeline__item:nth-child(odd)::before {
    left: auto;
    right: -52px;
  }

  .page-about .about-timeline__item:nth-child(even) {
    margin-left: auto;
  }

  .page-about .about-timeline__item:nth-child(even)::before {
    left: -52px;
  }
}

@media (min-width: 1000px) {
  .page-about .about-partners__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-bar__fill,
  .page-about .about-index__jump {
    transition: none;
  }
}