.page-about {
  --about-line: 1px solid var(--line);
  position: relative;
  background: var(--night);
  color: var(--white);
  overflow-x: clip;
}

.page-about::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(to right, rgba(35, 44, 77, .38) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(35, 44, 77, .38) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: .55;
}

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

/* ---------- 面包屑 ---------- */
.page-about .about-crumb {
  padding-top: clamp(14px, 2vw, 22px);
}

.page-about .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--muted);
}

.page-about .breadcrumb__list > li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}

.page-about .breadcrumb__link {
  color: var(--muted);
  text-decoration: none;
}

.page-about .breadcrumb__link:hover {
  color: var(--white);
}

.page-about .breadcrumb__list > li[aria-current="page"] {
  color: var(--white);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  padding-block: clamp(24px, 4vw, 48px) clamp(40px, 6vw, 76px);
  border-bottom: var(--about-line);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-about .about-kicker,
.page-about .about-head__kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-about .about-kicker__num,
.page-about .about-head__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 26px;
  height: 20px;
  padding: 0 6px;
  background: var(--ink);
  color: var(--lime);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
}

.page-about h1 {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.12;
  letter-spacing: -.01em;
  text-wrap: balance;
}

.page-about .about-lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-facts {
  border: var(--about-line);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  padding: 4px 18px;
}

.page-about .about-facts__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-bottom: var(--about-line);
}

.page-about .about-facts__row:last-child {
  border-bottom: 0;
}

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

.page-about .about-facts__val {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--white);
}

.page-about .about-facts__val--lime {
  color: var(--lime);
}

/* ---------- 通用区块 ---------- */
.page-about .about-section {
  padding-block: clamp(40px, 6.5vw, 88px);
  border-bottom: var(--about-line);
}

.page-about .about-section--tint {
  background: linear-gradient(180deg, rgba(20, 27, 54, .92), rgba(11, 16, 38, .6));
}

.page-about .about-head {
  max-width: 74ch;
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-about h2 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.22;
  letter-spacing: -.005em;
}

.page-about .about-head__lead {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--muted);
}

.page-about .about-inline {
  color: var(--white);
  text-decoration: none;
  border-bottom: 2px solid var(--lime);
  padding-bottom: 1px;
}

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

/* ---------- 时间线标签 ---------- */
.page-about .about-timeline {
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-about .about-timeline__list {
  display: flex;
  border-block: var(--about-line);
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-timeline__tab {
  position: relative;
  flex: 1 1 0;
  min-width: 152px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px 20px;
  border: 0;
  border-right: var(--about-line);
  background: transparent;
  color: var(--muted);
  text-align: left;
  font: inherit;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .about-timeline__tab:last-child {
  border-right: 0;
}

.page-about .about-timeline__tab::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 8px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--line-strong);
  transition: background var(--dur) var(--ease);
}

.page-about .about-timeline__tab::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: transparent;
  transition: background var(--dur) var(--ease);
}

.page-about .about-timeline__year {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

.page-about .about-timeline__name {
  font-size: 13px;
  letter-spacing: .04em;
}

.page-about .about-timeline__tab:hover {
  background: rgba(20, 27, 54, .7);
  color: var(--white);
}

.page-about .about-timeline__tab[aria-selected="true"] {
  background: var(--panel);
  color: var(--white);
}

.page-about .about-timeline__tab[aria-selected="true"]::before {
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(200, 255, 61, .22);
}

.page-about .about-timeline__tab[aria-selected="true"]::after {
  background: var(--lime);
}

.page-about .about-timeline__panel {
  padding-top: clamp(22px, 3vw, 34px);
}

.page-about .about-timeline__text {
  margin: 0 0 22px;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--white);
}

.page-about .about-timeline__points {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-timeline__points li {
  position: relative;
  padding-left: 22px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-timeline__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 2px;
  background: var(--line-strong);
}

/* ---------- 图片 ---------- */
.page-about .about-figure {
  margin: clamp(26px, 4vw, 48px) 0 0;
  border: var(--about-line);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  max-width: 100%;
}

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

.page-about .about-figure--team,
.page-about .about-figure--flow {
  max-width: 100%;
}

.page-about .img-frame__caption {
  display: block;
  padding: 12px 16px;
  border-top: var(--about-line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 团队标签 ---------- */
.page-about .about-team__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border: var(--about-line);
  background: var(--night);
}

.page-about .about-team__tab {
  flex: 1 1 140px;
  padding: 14px 16px;
  border: 0;
  border-right: var(--about-line);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: .03em;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .about-team__tab:last-child {
  border-right: 0;
}

.page-about .about-team__tab:hover {
  color: var(--white);
  background: rgba(20, 27, 54, .6);
}

.page-about .about-team__tab[aria-selected="true"] {
  background: var(--white);
  color: var(--ink);
}

.page-about .about-team__panel {
  border: var(--about-line);
  border-top: 0;
  background: var(--panel);
  padding: clamp(22px, 3vw, 38px);
}

.page-about .about-team__title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 800;
  line-height: 1.3;
}

.page-about .about-team__text {
  margin: 0 0 22px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.page-about .about-team__meta {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-top: 20px;
  border-top: var(--about-line);
}

.page-about .about-team__meta > div {
  display: grid;
  gap: 6px;
}

.page-about .about-team__meta dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-about .about-team__meta dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--white);
}

.page-about .about-aside {
  margin: clamp(26px, 3.6vw, 42px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--lime);
  max-width: 70ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- 流程 ---------- */
.page-about .about-flow {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--about-line);
}

.page-about .about-step {
  border-bottom: var(--about-line);
}

.page-about .about-step__box {
  background: transparent;
  transition: background var(--dur) var(--ease);
}

.page-about .about-step__box[open] {
  background: rgba(20, 27, 54, .72);
}

.page-about .about-step__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 18px 18px 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-step__summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--muted);
  transition: color var(--dur) var(--ease);
}

.page-about .about-step__box[open] .about-step__summary::after {
  content: "−";
  color: var(--lime);
}

.page-about .about-step__summary:hover::after {
  color: var(--white);
}

.page-about .about-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 34px;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}

.page-about .about-step__title {
  font-family: var(--font-head);
  font-size: clamp(16px, 1.9vw, 20px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--white);
}

.page-about .about-step__body {
  padding: 0 18px 24px 62px;
}

.page-about .about-step__body p {
  margin: 0 0 18px;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

.page-about .about-step__meta {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-top: 16px;
  border-top: var(--about-line);
}

.page-about .about-step__meta > div {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-about .about-step__meta dt {
  flex: 0 0 auto;
  min-width: 96px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--muted);
  text-transform: uppercase;
  padding-top: 2px;
}

.page-about .about-step__meta dd {
  margin: 0;
  flex: 1 1 auto;
  font-size: 14px;
  line-height: 1.7;
  color: var(--white);
}

/* ---------- 回溯校对 ---------- */
.page-about .about-review {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  border: var(--about-line);
  border-left: 4px solid var(--lime);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  padding: clamp(24px, 3.6vw, 44px);
}

.page-about .about-review__head h2 {
  margin-bottom: 14px;
}

.page-about .about-review__head p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.page-about .about-review__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0;
  border-top: var(--about-line);
}

.page-about .about-review__item {
  padding: 18px 0;
  border-bottom: var(--about-line);
}

.page-about .about-review__item:last-child {
  border-bottom: 0;
}

.page-about .about-review__item dt {
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-about .about-review__item dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--white);
}

/* ---------- 服务 ---------- */
.page-about .about-services {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

.page-about .about-service {
  position: relative;
  border: var(--about-line);
  background: var(--panel);
  padding: clamp(22px, 3vw, 32px);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-about .about-service::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: var(--line-strong);
}

.page-about .about-service--epl::before { background: var(--epl); }
.page-about .about-service--laliga::before { background: var(--laliga); }
.page-about .about-service--seriea::before { background: var(--seriea); }

.page-about .about-service:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-soft);
  transform: translate(-2px, -2px);
}

.page-about .about-service__idx {
  display: inline-block;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--muted);
}

.page-about .about-service h3 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(18px, 2vw, 21px);
  font-weight: 800;
  line-height: 1.35;
}

.page-about .about-service p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

.page-about .about-cta {
  display: grid;
  gap: 20px;
  margin-top: clamp(28px, 4vw, 46px);
  padding-top: clamp(22px, 3vw, 32px);
  border-top: var(--about-line);
}

.page-about .about-cta__text {
  margin: 0;
  max-width: 76ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

.page-about .about-note {
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 16px 18px;
  border: 1px dashed var(--line-strong);
  max-width: 76ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .about-team__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

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

  .page-about .about-services .about-service:last-child {
    grid-column: 1 / -1;
  }

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

  .page-about .about-review__item {
    padding: 20px 22px 20px 0;
    border-bottom: 0;
    border-right: var(--about-line);
  }

  .page-about .about-review__item:last-child {
    border-right: 0;
  }

  .page-about .about-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-about .about-step__body {
    padding-left: 64px;
    padding-right: 34px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(32px, 5vw, 72px);
  }

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

  .page-about .about-services .about-service:last-child {
    grid-column: auto;
  }

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

  .page-about .about-figure--team {
    margin-left: auto;
    width: min(100%, 900px);
  }

  .page-about .about-figure--flow {
    width: min(100%, 760px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-timeline__tab,
  .page-about .about-team__tab,
  .page-about .about-service,
  .page-about .about-step__box {
    transition: none;
  }
}