/* ============================================================
   关于看台 / page-about
   ============================================================ */

.page-about {
  --ab-cut: 20px;
  --ab-line: rgba(138, 163, 150, .28);
  --ab-ease: var(--ease);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  isolation: isolate;
  padding-top: clamp(18px, 3.4vw, 34px);
  padding-bottom: clamp(34px, 5.6vw, 68px);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: -30px 0 0 0;
  z-index: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 92px 92px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 84%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 84%);
  pointer-events: none;
}

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

.page-about .about-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.25rem, 8.4vw, 5rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
  color: var(--mist);
  max-width: 20ch;
}

.page-about .about-hero__accent {
  color: var(--lime);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-about .about-hero__lede {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 62ch;
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.8;
  color: var(--mist);
}

.page-about .about-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px clamp(14px, 2vw, 26px);
  margin-top: clamp(28px, 4vw, 44px);
}

.page-about .about-fact {
  border-top: 2px solid var(--lime);
  padding-top: 12px;
  min-width: 0;
}

.page-about .about-fact__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.25rem);
  line-height: 1.06;
  color: var(--lime);
  letter-spacing: -0.01em;
}

.page-about .about-fact__label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--fog);
}

/* ---------- 区块标题 ---------- */
.page-about .about-head {
  max-width: 64ch;
}

.page-about .about-head__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.55rem, 4.2vw, 2.5rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
  color: var(--mist);
}

.page-about .about-head__note {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--fog);
}

/* ---------- 时间线 ---------- */
.page-about .about-timeline {
  position: relative;
  margin-top: clamp(28px, 4.4vw, 46px);
  padding-left: 36px;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: repeating-linear-gradient(
    to bottom,
    var(--line-strong) 0 5px,
    transparent 5px 13px
  );
}

.page-about .about-tl-node {
  position: relative;
  padding-bottom: 22px;
}

.page-about .about-tl-node::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 28px;
  width: 11px;
  height: 11px;
  transform: rotate(45deg);
  background: var(--pit);
  border: 2px solid var(--lime);
  z-index: 1;
}

.page-about .about-tl-card {
  background: var(--turf);
  border: 1px solid var(--line);
  border-left: 3px solid var(--board);
  padding: 18px 18px 16px;
  transition: border-color .22s var(--ab-ease), background .22s var(--ab-ease);
}

.page-about .about-tl-card:hover {
  border-left-color: var(--lime);
  background: var(--board);
}

.page-about .about-tl-era {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--lime);
}

.page-about .about-tl-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  line-height: 1.34;
  margin: 8px 0 8px;
  color: var(--mist);
}

.page-about .about-tl-sum {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--fog);
}

.page-about .about-tl-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1;
  padding: 8px 16px;
  cursor: pointer;
  transition: border-color .2s var(--ab-ease), color .2s var(--ab-ease), background .2s var(--ab-ease);
}

.page-about .about-tl-toggle:hover {
  border-color: var(--lime);
  color: var(--lime);
}

.page-about .about-tl-toggle:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-about .accordion__panel.about-tl-panel {
  margin-top: 14px;
  padding: 12px 0 0 14px;
  border-left: 1px dashed var(--line-strong);
}

.page-about .about-tl-panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--mist);
}

.page-about .about-tl-media {
  margin: clamp(30px, 5vw, 52px) auto 0;
  width: 100%;
  max-width: 400px;
}

.page-about .about-tl-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  display: block;
}

/* ---------- 团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  margin-top: clamp(26px, 4vw, 42px);
}

.page-about .about-team__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
}

.page-about .about-lc {
  --lc: var(--board);
  background: var(--turf);
  border: 1px solid var(--line);
  border-top: 3px solid var(--lc);
  padding: 16px 15px 15px;
  min-width: 0;
  transition: transform .22s var(--ab-ease), background .22s var(--ab-ease), box-shadow .22s var(--ab-ease);
}

.page-about .about-lc--epl { --lc: var(--lg-epl); }
.page-about .about-lc--laliga { --lc: var(--lg-laliga); }
.page-about .about-lc--bundesliga { --lc: var(--lg-bundesliga); }
.page-about .about-lc--seriea { --lc: var(--lg-seriea); }
.page-about .about-lc--ligue1 { --lc: var(--lg-ligue1); }

.page-about .about-lc:hover,
.page-about .about-lc:focus-within {
  transform: translateY(-4px);
  background: var(--board);
  box-shadow: 0 16px 34px rgba(0, 0, 0, .38);
}

.page-about .about-lc__name {
  display: flex;
  align-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: .02em;
  margin: 0;
  color: var(--mist);
}

.page-about .about-lc__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lc);
  margin-right: 8px;
  flex: 0 0 auto;
}

.page-about .about-lc__desc {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.76;
  color: var(--fog);
}

.page-about .about-team__wide {
  display: grid;
  gap: 14px;
  margin-top: 14px;
}

.page-about .about-wide-card {
  position: relative;
  background: linear-gradient(180deg, var(--turf) 0%, rgba(12, 42, 27, .5) 100%);
  border: 1px solid var(--line);
  padding: 18px 18px 18px 22px;
}

.page-about .about-wide-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 3px;
  background: var(--lime);
}

.page-about .about-wide-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  margin: 0 0 10px;
  color: var(--mist);
}

.page-about .about-wide-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--fog);
}

.page-about .about-team__media {
  margin: 0;
  width: 100%;
}

.page-about .about-team__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
}

/* ---------- 数据来源 ---------- */
.page-about .about-split {
  display: grid;
  gap: clamp(24px, 3.6vw, 40px);
  align-items: start;
}

.page-about .about-source {
  list-style: none;
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding: 0;
}

.page-about .about-source__step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.page-about .about-source__step:last-child {
  border-bottom: 1px solid var(--line);
}

.page-about .about-source__idx {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--lime);
  padding-top: 4px;
}

.page-about .about-source__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.4;
  margin: 0 0 8px;
  color: var(--mist);
}

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

.page-about .about-source__media {
  margin: 0;
  width: 100%;
}

.page-about .about-source__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  display: block;
}

/* ---------- 四个常设栏目 ---------- */
.page-about .about-cols {
  display: grid;
  gap: 14px;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-about .about-col {
  position: relative;
  background: linear-gradient(180deg, var(--turf) 0%, rgba(12, 42, 27, .42) 100%);
  border: 1px solid var(--line);
  padding: 20px 18px 18px;
  clip-path: polygon(0 0, calc(100% - var(--ab-cut)) 0, 100% var(--ab-cut), 100% 100%, 0 100%);
  min-width: 0;
  transition: background .22s var(--ab-ease);
}

.page-about .about-col:hover {
  background: linear-gradient(180deg, var(--board) 0%, rgba(12, 42, 27, .6) 100%);
}

.page-about .about-col__idx {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--fog);
}

.page-about .about-col__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  line-height: 1.35;
  margin: 10px 0 10px;
  color: var(--mist);
}

.page-about .about-col__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: var(--fog);
}

/* ---------- 比赛日时间轴 ---------- */
.page-about .about-matchday {
  margin-top: clamp(26px, 4vw, 42px);
}

.page-about .about-matchday__track {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 14px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-md-step {
  position: relative;
  flex: 0 0 78%;
  scroll-snap-align: start;
  background: var(--turf);
  border: 1px solid var(--line);
  padding: 20px 16px 18px;
  min-width: 0;
}

.page-about .about-md-step::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--lime);
}

.page-about .about-md-step__time {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--lime);
}

.page-about .about-md-step__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.08rem;
  line-height: 1.38;
  margin: 10px 0 10px;
  color: var(--mist);
}

.page-about .about-md-step p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.8;
  color: var(--fog);
}

/* ---------- 合作 ---------- */
.page-about .about-partners {
  display: grid;
  gap: 14px;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-about .about-partner-card {
  background: var(--turf);
  border: 1px solid var(--line);
  border-bottom: 3px solid var(--board);
  padding: 20px 18px 18px;
  min-width: 0;
  transition: border-bottom-color .22s var(--ab-ease), background .22s var(--ab-ease);
}

.page-about .about-partner-card:hover {
  border-bottom-color: var(--blue);
  background: var(--board);
}

.page-about .about-partner-card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  line-height: 1.36;
  margin: 0 0 10px;
  color: var(--mist);
}

.page-about .about-partner-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: var(--fog);
}

/* ---------- 使用者标签页 ---------- */
.page-about .about-tabs {
  margin-top: clamp(24px, 3.6vw, 38px);
}

.page-about .about-tabs__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}

.page-about .about-tabs__controls .tabs__btn {
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--fog);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.4;
  padding: 10px 0 12px;
  cursor: pointer;
  transition: color .2s var(--ab-ease), border-color .2s var(--ab-ease);
}

.page-about .about-tabs__controls .tabs__btn:hover {
  color: var(--mist);
}

.page-about .about-tabs__controls .tabs__btn[aria-selected="true"] {
  color: var(--mist);
  border-bottom-color: var(--lime);
}

.page-about .about-tabs__controls .tabs__btn:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-about .about-tabs__panel {
  max-width: 74ch;
}

.page-about .about-tabs__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  line-height: 1.36;
  margin: 0 0 12px;
  color: var(--mist);
}

.page-about .about-tabs__panel p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.84;
  color: var(--fog);
}

.page-about .about-tabs__links {
  font-size: 14px;
  color: var(--fog);
}

.page-about .about-tabs__links a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-about .about-tabs__links a:hover {
  color: var(--lime);
}

/* ---------- 结尾指引 ---------- */
.page-about .about-next {
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-about .about-next__panel {
  position: relative;
  background: linear-gradient(135deg, var(--board) 0%, var(--turf) 62%);
  border: 1px solid var(--line-strong);
  padding: clamp(24px, 4vw, 44px);
  clip-path: polygon(var(--ab-cut) 0, 100% 0, 100% calc(100% - var(--ab-cut)), calc(100% - var(--ab-cut)) 100%, 0 100%, 0 var(--ab-cut));
}

.page-about .about-next__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3.6vw, 2.15rem);
  line-height: 1.18;
  margin: 0;
  color: var(--mist);
}

.page-about .about-next__note {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--fog);
  overflow-wrap: anywhere;
}

.page-about .about-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 窄屏稳定性 ---------- */
.page-about .about-hero__title,
.page-about .about-head__title,
.page-about .about-tl-title,
.page-about .about-col__title,
.page-about .about-partner-card__title,
.page-about .about-md-step__title,
.page-about .about-wide-card__title,
.page-about .about-source__title,
.page-about .about-tabs__title,
.page-about .about-next__title {
  overflow-wrap: anywhere;
}

.page-about a {
  text-underline-offset: 3px;
}

/* ---------- 中屏 ---------- */
@media (min-width: 640px) {
  .page-about .about-team__wide {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .page-about .about-md-step {
    flex-basis: 60%;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-about .about-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
  }

  /* 时间线：左右交错 */
  .page-about .about-timeline {
    padding-left: 0;
    max-width: 1080px;
    margin-left: auto;
    margin-right: auto;
  }

  .page-about .about-timeline::before {
    left: 50%;
    top: 12px;
    bottom: 12px;
  }

  .page-about .about-tl-node {
    width: 50%;
    padding-right: 46px;
    padding-bottom: 34px;
  }

  .page-about .about-tl-node:nth-child(even) {
    margin-left: 50%;
    padding-right: 0;
    padding-left: 46px;
  }

  .page-about .about-tl-node::before {
    left: auto;
    right: -6px;
    top: 30px;
  }

  .page-about .about-tl-node:nth-child(even)::before {
    left: -6px;
    right: auto;
  }

  /* 团队 */
  .page-about .about-team {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-about .about-team__media {
    position: sticky;
    top: 120px;
  }

  /* 数据来源 */
  .page-about .about-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  /* 比赛日：横排四格 */
  .page-about .about-matchday__track {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-about .about-md-step {
    flex: none;
  }

  /* 栏目四列 */
  .page-about .about-cols {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 1200px) {
  .page-about .about-tl-media {
    max-width: 440px;
  }

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

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about .about-lc,
  .page-about .about-col,
  .page-about .about-partner-card,
  .page-about .about-tl-card,
  .page-about .about-tl-toggle,
  .page-about .about-tabs__controls .tabs__btn {
    transition: none;
  }

  .page-about .about-lc:hover,
  .page-about .about-lc:focus-within {
    transform: none;
  }
}
<<<END>>>