.page-about {
  --about-ax: 96px;
  --about-line: rgba(243, 247, 244, 0.14);
  --about-card: #141C18;
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(40px, 7vw, 96px);
}

/* 面包屑 */
.page-about .breadcrumb {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: 18px 20px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 13px;
  color: var(--mist);
  letter-spacing: 0.02em;
}
.page-about .breadcrumb__item {
  display: inline-flex;
  align-items: center;
}
.page-about .breadcrumb__item + .breadcrumb__item::before {
  content: "／";
  margin: 0 8px;
  color: rgba(147, 162, 155, 0.7);
}
.page-about .breadcrumb__link {
  color: var(--flesh);
  text-decoration: none;
}
.page-about .breadcrumb__link:hover {
  color: var(--kiwi);
  text-decoration: underline;
}

/* 首屏 */
.page-about .about-hero {
  position: relative;
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: clamp(26px, 5vw, 62px) 20px clamp(30px, 6vw, 74px);
  overflow: hidden;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -10% -20% 0 -20%;
  background:
    radial-gradient(52% 46% at 14% 6%, rgba(47, 191, 113, 0.22), transparent 66%),
    radial-gradient(46% 52% at 88% 20%, rgba(71, 99, 228, 0.16), transparent 70%),
    radial-gradient(40% 40% at 70% 90%, rgba(217, 168, 92, 0.12), transparent 72%);
  pointer-events: none;
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  height: 1px;
  background: repeating-linear-gradient(100deg, var(--about-line) 0 22px, transparent 22px 46px);
  pointer-events: none;
}
.page-about .about-hero__grid {
  position: relative;
  display: grid;
  gap: 30px;
}
.page-about .about-hero__lead {
  min-width: 0;
}
.page-about .about-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-cond);
  font-size: clamp(34px, 6.6vw, 66px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--paper);
}
.page-about .about-hero__text {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(243, 247, 244, 0.82);
}
.page-about .about-hero__actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-hero__actions .btn {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.04em;
}

/* 概览板 */
.page-about .about-hero__board {
  min-width: 0;
  padding: 20px 20px 22px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(165deg, rgba(47, 191, 113, 0.10), rgba(20, 28, 24, 0.86));
  backdrop-filter: blur(6px);
}
.page-about .about-board__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--flesh);
}
.page-about .ledger {
  margin: 0;
  display: grid;
}
.page-about .ledger__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--about-line);
}
.page-about .ledger__row:last-child {
  border-bottom: 0;
}
.page-about .ledger__key {
  margin: 0;
  font-size: 13px;
  color: var(--mist);
}
.page-about .ledger__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}
.page-about .ledger__val small {
  margin-left: 5px;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--mist);
}
.page-about .about-band {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin-top: 18px;
}
.page-about .about-band i {
  display: block;
  height: 4px;
  border-radius: 2px;
}
.page-about .about-band i:nth-child(1) { background: var(--indigo); }
.page-about .about-band i:nth-child(2) { background: var(--sand); }
.page-about .about-band i:nth-child(3) { background: var(--berry); }
.page-about .about-band i:nth-child(4) { background: var(--citrus); }
.page-about .about-band i:nth-child(5) { background: var(--kiwi); }

/* 章节通用 */
.page-about .about-section {
  position: relative;
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: clamp(30px, 5vw, 58px) 20px;
}
.page-about .about-section + .about-section {
  border-top: 1px solid var(--about-line);
}
.page-about .about-section__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}
.page-about .about-section__head .section-head {
  min-width: 0;
  max-width: 44em;
}
.page-about .about-section__head .section-head__title {
  margin: 0;
  font-family: var(--font-cond);
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--paper);
}
.page-about .about-section__head .section-head__note {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}
.page-about .side-note {
  display: none;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: rgba(143, 227, 176, 0.72);
  white-space: nowrap;
}
.page-about .about-paragraph {
  margin: 20px 0 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(243, 247, 244, 0.80);
}
.page-about .about-paragraph + .about-paragraph {
  margin-top: 14px;
}
.page-about .about-inline-link,
.page-about .about-linkline a {
  color: var(--flesh);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 227, 176, 0.4);
}
.page-about .about-inline-link:hover,
.page-about .about-linkline a:hover {
  color: var(--kiwi);
  border-bottom-color: var(--kiwi);
}
.page-about .about-linkline {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* 时间线 */
.page-about .timeline {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}
.page-about .timeline__ticks {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.page-about .timeline__tick {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border: 1px solid var(--about-line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
  text-decoration: none;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-about .timeline__tick:hover,
.page-about .timeline__tick:focus-visible {
  color: var(--paper);
  border-color: var(--line-strong);
}
.page-about .timeline__tick.is-active {
  color: var(--ink);
  background: var(--kiwi);
  border-color: var(--kiwi);
  font-weight: 700;
}
.page-about .timeline__stage {
  position: relative;
  margin: 0 0 16px;
  padding: 20px 18px 22px 22px;
  background: var(--about-card);
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  overflow: hidden;
}
.page-about .timeline__stage::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--stage-c, var(--kiwi));
}
.page-about .timeline__stage:nth-child(1) { --stage-c: var(--indigo); }
.page-about .timeline__stage:nth-child(2) { --stage-c: var(--sand); }
.page-about .timeline__stage:nth-child(3) { --stage-c: var(--berry); }
.page-about .timeline__stage:nth-child(4) { --stage-c: var(--citrus); }
.page-about .timeline__stage:nth-child(5) { --stage-c: var(--kiwi); }
.page-about .stage__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--stage-c, var(--kiwi));
}
.page-about .stage__title {
  margin: 10px 0 0;
  font-family: var(--font-cond);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--paper);
}
.page-about .stage__body {
  margin: 12px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(243, 247, 244, 0.78);
}

/* 图片框 */
.page-about .media-frame {
  margin: 26px 0 0;
  max-width: 100%;
  border: 1px solid var(--glass-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}
.page-about .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-about .media-frame__label {
  display: block;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  border-top: 1px solid var(--about-line);
}

/* 团队 */
.page-about .team-split {
  display: grid;
  gap: 24px;
  margin-top: 8px;
}
.page-about .roster {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .roster__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 16px;
  background: var(--about-card);
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.page-about .roster__item:hover {
  border-color: var(--line-strong);
  transform: translateX(3px);
}
.page-about .roster__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--kiwi);
}
.page-about .roster__body {
  min-width: 0;
}
.page-about .roster__kicker {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}
.page-about .roster__text {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* 赛季档案数据 */
.page-about .archive-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 26px;
}
.page-about .stat-card {
  padding: 16px 14px 18px;
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  background: linear-gradient(158deg, rgba(47, 191, 113, 0.13), rgba(20, 28, 24, 0.92));
}
.page-about .stat-card:nth-child(2n) {
  background: linear-gradient(158deg, rgba(217, 168, 92, 0.13), rgba(20, 28, 24, 0.92));
}
.page-about .stat-card:nth-child(3n) {
  background: linear-gradient(158deg, rgba(71, 99, 228, 0.14), rgba(20, 28, 24, 0.92));
}
.page-about .stat-card__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(24px, 4.6vw, 34px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--paper);
}
.page-about .stat-card__num span {
  margin-left: 4px;
  font-size: 12px;
  font-weight: 500;
  color: var(--flesh);
}
.page-about .stat-card__label {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}
.page-about .archive-flow {
  margin-top: 4px;
}

/* 联赛色带图例 */
.page-about .legend {
  display: grid;
  gap: 14px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}
.page-about .legend__item {
  position: relative;
  padding: 18px 18px 18px 20px;
  background: var(--about-card);
  border: 1px solid var(--about-line);
  border-left: 4px solid var(--c, var(--kiwi));
  border-radius: var(--radius);
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}
.page-about .legend__item[data-league="england"] { --c: var(--indigo); }
.page-about .legend__item[data-league="spain"] { --c: var(--sand); }
.page-about .legend__item[data-league="italy"] { --c: var(--berry); }
.page-about .legend__item[data-league="germany"] { --c: var(--citrus); }
.page-about .legend__item[data-league="france"] { --c: var(--kiwi); }
.page-about .legend__item[data-league="all"] { --c: var(--flesh); }
.page-about .legend__item:focus-visible {
  outline: 2px solid var(--flesh);
  outline-offset: 3px;
}
.page-about .legend__name {
  margin: 0;
  font-family: var(--font-cond);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--c, var(--paper));
}
.page-about .legend__note {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(243, 247, 244, 0.78);
}
.page-about .legend__more {
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.7;
  color: var(--flesh);
  transition: max-height 0.3s var(--ease), opacity 0.3s var(--ease), margin 0.3s var(--ease);
}

/* 合作 */
.page-about .partner-grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}
.page-about .partner-card {
  padding: 20px 18px;
  background: var(--about-card);
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
}
.page-about .partner-card__title {
  margin: 0;
  font-family: var(--font-cond);
  font-size: 19px;
  font-weight: 800;
  color: var(--paper);
}
.page-about .partner-card__title::after {
  content: "";
  display: block;
  width: 34px;
  height: 3px;
  margin-top: 10px;
  border-radius: 2px;
  background: var(--kiwi);
}
.page-about .partner-card__body {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(243, 247, 244, 0.78);
}
.page-about .partner-meta {
  margin-top: 20px;
  display: grid;
  gap: 10px;
  padding: 18px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
}
.page-about .partner-meta p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}
.page-about .partner-meta__num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--sand);
  margin-right: 4px;
}

/* 运营所在地 */
.page-about .where-split {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}
.page-about .where-split .media-frame {
  margin-top: 0;
}
.page-about .where-key {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--mist);
  text-transform: uppercase;
}
.page-about .where-link,
.page-about .where-val {
  display: block;
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
  word-break: break-word;
}
.page-about .where-link {
  color: var(--flesh);
  text-decoration: none;
}
.page-about .where-link:hover {
  color: var(--kiwi);
  text-decoration: underline;
}
.page-about .where-split .contact-list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}
.page-about .where-split .contact-list__row {
  padding: 14px 16px;
  background: var(--about-card);
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
}

/* 收尾 CTA */
.page-about .about-cta {
  margin-top: 34px;
  padding: 22px 20px;
  display: grid;
  gap: 18px;
  align-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(140deg, rgba(240, 145, 47, 0.16), rgba(12, 16, 14, 0.9) 62%);
}
.page-about .about-cta__title {
  margin: 0;
  font-family: var(--font-cond);
  font-size: 22px;
  font-weight: 800;
  color: var(--paper);
}
.page-about .about-cta__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(243, 247, 244, 0.8);
}
.page-about .about-cta .btn {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.04em;
}

/* 进入视口的轻微上移 */
.page-about [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.page-about [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@media (min-width: 760px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: end;
  }
  .page-about .archive-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
  .page-about .legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .about-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 26px 26px;
  }
  .page-about .about-cta .btn {
    padding: 0 26px;
    width: auto;
  }
}

@media (min-width: 960px) {
  .page-about .side-note {
    display: block;
    writing-mode: vertical-rl;
    padding-top: 6px;
  }
  .page-about .timeline {
    grid-template-columns: var(--about-ax) minmax(0, 1fr);
    gap: 0 30px;
    align-items: start;
  }
  .page-about .timeline__ticks {
    position: sticky;
    top: calc(var(--strip-h) + 14px);
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
    border-right: 1px solid var(--about-line);
  }
  .page-about .timeline__ticks li {
    list-style: none;
  }
  .page-about .timeline__tick {
    display: block;
    min-height: 44px;
    padding: 6px 16px 6px 0;
    border: 0;
    border-radius: 0;
    text-align: right;
    font-size: 15px;
    letter-spacing: 0.1em;
  }
  .page-about .timeline__tick.is-active {
    background: none;
    color: var(--kiwi);
    font-weight: 700;
    box-shadow: 3px 0 0 var(--kiwi) inset;
    padding-right: 16px;
  }
  .page-about .timeline__stages {
    position: relative;
    padding-left: 28px;
  }
  .page-about .timeline__stages::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    bottom: 10px;
    width: 1px;
    background: var(--about-line);
  }
  .page-about .timeline__stage {
    padding: 24px 24px 26px 26px;
  }
  .page-about .timeline__stage::after {
    content: "";
    position: absolute;
    left: -34px;
    top: 26px;
    width: 11px;
    height: 11px;
    transform: rotate(45deg);
    background: var(--stage-c, var(--kiwi));
  }
  .page-about .team-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
  }
  .page-about .where-split {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 36px;
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-about .legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (hover: hover) and (pointer: fine) {
  .page-about .legend__item:hover,
  .page-about .legend__item:focus-within {
    background: #19231E;
    transform: translateY(-2px);
  }
  .page-about .legend__item:hover .legend__more,
  .page-about .legend__item:focus-within .legend__more {
    max-height: 120px;
    opacity: 1;
    margin-top: 10px;
  }
}

@media (hover: none) {
  .page-about .legend__more {
    max-height: none;
    opacity: 1;
    margin-top: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about [data-reveal],
  .page-about .legend__item,
  .page-about .legend__more,
  .page-about .timeline__tick,
  .page-about .roster__item {
    transition: none;
  }
  .page-about [data-reveal] {
    opacity: 1;
    transform: none;
  }
}