.page-about {
  --about-gap: clamp(20px, 3vw, 36px);
  display: block;
  padding-bottom: clamp(56px, 9vw, 104px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-block: clamp(18px, 3vw, 36px) clamp(34px, 6vw, 62px);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-about .about-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--accent-cyan);
}

.page-about .about-hero .eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-orange);
}

.page-about .about-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(30px, 5.4vw, 58px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -.005em;
  color: var(--text-primary);
}

.page-about .about-hero__lead .lede {
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero__panel {
  position: relative;
  overflow: hidden;
  background: linear-gradient(158deg, var(--ink-panel), var(--ink-deep) 78%);
  border: 1px solid var(--line-steel);
  border-radius: var(--r-lg);
  padding: 20px 22px 18px;
  box-shadow: var(--shadow-panel);
}

.page-about .about-hero__panel::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--accent-orange), var(--accent-cyan));
}

.page-about .about-hero__panel-label {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--text-muted);
}

.page-about .about-stats {
  margin: 0;
  display: grid;
}

.page-about .about-stats__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-top: 1px solid var(--line-steel);
}

.page-about .about-stats__row:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-stats__key {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text-muted);
}

.page-about .about-stats__val {
  margin: 0;
  font-size: 13px;
  color: var(--text-primary);
}

.page-about .about-stats__val .num {
  font-family: var(--font-num);
  font-size: 30px;
  line-height: 1;
  font-weight: 600;
  color: var(--accent-orange);
}

/* ---------- 章节骨架 ---------- */
.page-about .about-chapter {
  padding-block: clamp(34px, 5vw, 60px);
  border-top: 1px solid var(--line-steel);
}

.page-about .about-chapter__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num note";
  column-gap: 14px;
  row-gap: 9px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-about .about-chapter__num {
  grid-area: num;
  font-family: var(--font-num);
  font-size: clamp(26px, 3.6vw, 40px);
  font-weight: 600;
  line-height: 1;
  color: var(--accent-orange);
  letter-spacing: .02em;
}

.page-about .about-chapter__title {
  grid-area: title;
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(21px, 3vw, 32px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}

.page-about .about-chapter__note {
  grid-area: note;
  margin: 0;
  max-width: 58ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-about .about-chapter__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--about-gap);
}

/* ---------- 正文 ---------- */
.page-about .about-prose p {
  margin: 0 0 1.05em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-primary);
}

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

.page-about .about-prose--wide {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-muted);
}

.page-about .about-aside {
  align-self: start;
  background: var(--ink-deep);
  border: 1px solid var(--line-steel);
  border-left: 3px solid var(--accent-cyan);
  border-radius: var(--r-md);
  padding: 16px 18px;
}

.page-about .about-aside p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-muted);
}

/* ---------- 图 ---------- */
.page-about .about-figure {
  margin: 0;
}

/* ---------- 团队 ---------- */
.page-about .about-teams {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-teams__item {
  position: relative;
  background: var(--ink-panel);
  border: 1px solid var(--line-steel);
  border-radius: var(--r-md);
  padding: 18px 18px 18px 22px;
}

.page-about .about-teams__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--accent-cyan);
}

.page-about .about-teams__item:nth-child(1)::before { background: var(--accent-cyan); }
.page-about .about-teams__item:nth-child(2)::before { background: var(--accent-orange); }
.page-about .about-teams__item:nth-child(3)::before { background: var(--score-amber); }

.page-about .about-teams__item h3 {
  margin: 0 0 7px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-about .about-teams__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
}

/* ---------- 赛事覆盖 ---------- */
.page-about .about-coverage__main {
  display: grid;
  gap: 14px;
}

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

.page-about .about-sports__tag {
  padding: 5px 13px;
  border: 1px solid var(--line-steel);
  border-radius: var(--r-pill);
  background: var(--ink-deep);
  color: var(--text-primary);
  font-size: 13px;
  letter-spacing: .02em;
}

.page-about .about-sports__tag--more {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(47, 227, 210, .08);
}

.page-about .about-dims {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-dims__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num title"
    "num text";
  column-gap: 12px;
  row-gap: 4px;
  padding: 13px 0;
  border-top: 1px solid var(--line-steel);
}

.page-about .about-dims__num {
  grid-area: num;
  font-family: var(--font-num);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--score-amber);
}

.page-about .about-dims__item h3 {
  grid-area: title;
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.page-about .about-dims__item p {
  grid-area: text;
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ---------- 三审 ---------- */
.page-about .about-review {
  background: var(--ink-deep);
  border: 1px solid var(--line-steel);
  border-radius: var(--r-lg);
  padding: 16px;
}

.page-about .about-review .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.page-about .about-review .tabs__tab {
  border: 1px solid var(--line-steel);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: .02em;
  padding: 7px 15px;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-about .about-review .tabs__tab[aria-selected="true"] {
  border-color: var(--accent-cyan);
  color: var(--ink-abyss);
  background: var(--accent-cyan);
}

.page-about .about-review .tabs__tab:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.page-about .about-review .tabs__tab[aria-selected="true"]:hover {
  color: var(--ink-abyss);
}

.page-about .about-review .tabs__panel {
  border-top: 1px solid var(--line-steel);
  padding-top: 16px;
}

.page-about .about-review .tabs__panel p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-primary);
}

.page-about .about-review__meta {
  margin: 0 !important;
  font-size: 13px !important;
  line-height: 1.75 !important;
  color: var(--text-muted) !important;
  padding-left: 12px;
  border-left: 2px solid var(--accent-orange);
}

/* ---------- 合作与荣誉 ---------- */
.page-about .about-honors {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-honors__item {
  position: relative;
  background: var(--ink-deep);
  border: 1px solid var(--line-steel);
  border-radius: var(--r-md);
  padding: 18px 18px 20px;
  overflow: hidden;
}

.page-about .about-honors__item::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), transparent 82%);
}

.page-about .about-honors__item:nth-child(2)::before {
  background: linear-gradient(90deg, var(--accent-orange), transparent 82%);
}

.page-about .about-honors__item:nth-child(3)::before {
  background: linear-gradient(90deg, var(--score-amber), transparent 82%);
}

.page-about .about-honors__fig {
  margin: 0 0 10px;
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.page-about .about-honors__fig .num {
  font-family: var(--font-num);
  font-size: clamp(40px, 6vw, 60px);
  font-weight: 600;
  line-height: .95;
  color: var(--text-primary);
  letter-spacing: -.01em;
}

.page-about .about-honors__unit {
  font-size: 13px;
  color: var(--accent-cyan);
  letter-spacing: .04em;
}

.page-about .about-honors__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
}

/* ---------- 安心之选 ---------- */
.page-about .about-promise {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-about .about-promise__item {
  background: var(--ink-panel);
  border: 1px solid var(--line-steel);
  border-radius: var(--r-md);
  padding: 18px 18px 20px;
}

.page-about .about-promise__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-about .about-promise__item h3::after {
  content: "";
  display: block;
  width: 24px;
  height: 2px;
  margin-top: 9px;
  border-radius: 2px;
  background: var(--accent-orange);
}

.page-about .about-promise__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-muted);
}

/* ---------- 时间轴 ---------- */
.page-about .about-timeline {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 4px 4px 14px;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-cyan) var(--ink-deep);
}

.page-about .about-timeline:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 4px;
  border-radius: var(--r-sm);
}

.page-about .about-timeline__item {
  position: relative;
  flex: 0 0 min(76vw, 292px);
  scroll-snap-align: start;
  padding: 30px 0 4px;
}

.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  right: -18px;
  top: 12px;
  height: 1px;
  background: var(--line-steel);
}

.page-about .about-timeline__item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 0 4px rgba(47, 227, 210, .14);
}

.page-about .about-timeline__item:last-child::before {
  right: 0;
  background: linear-gradient(90deg, var(--line-steel), transparent);
}

.page-about .about-timeline__item:nth-child(2)::after {
  background: var(--accent-orange);
  box-shadow: 0 0 0 4px rgba(255, 122, 47, .16);
}

.page-about .about-timeline__item:nth-child(3)::after {
  background: var(--score-amber);
  box-shadow: 0 0 0 4px rgba(255, 194, 75, .16);
}

.page-about .about-timeline__item:nth-child(4)::after {
  background: var(--sync-green);
  box-shadow: 0 0 0 4px rgba(59, 224, 122, .16);
}

.page-about .about-timeline__year {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(38px, 5vw, 52px);
  font-weight: 600;
  line-height: 1;
  color: var(--accent-orange);
  letter-spacing: -.01em;
}

.page-about .about-timeline__title {
  margin: 12px 0 8px;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-about .about-timeline__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-muted);
}

/* ---------- 后续入口 ---------- */
.page-about .about-next {
  padding-block: clamp(34px, 5vw, 60px) 0;
  border-top: 1px solid var(--line-steel);
}

.page-about .about-next__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-about .about-next__link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line-steel);
  border-radius: var(--r-md);
  background: var(--ink-deep);
  text-decoration: none;
  transition: border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-about .about-next__link:hover,
.page-about .about-next__link:focus-visible {
  border-color: var(--accent-cyan);
  background: var(--ink-panel);
}

.page-about .about-next__label {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-about .about-next__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-about .about-teams {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-honors {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 920px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }

  .page-about .about-chapter__body--split {
    grid-template-columns: minmax(0, 1.9fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-chapter__head {
    column-gap: 20px;
  }
}

@media (min-width: 1100px) {
  .page-about .about-next__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-review .tabs__tab,
  .page-about .about-next__link {
    transition: none;
  }

  .page-about .about-timeline {
    scroll-behavior: auto;
  }
}