.page-about {
  --about-dash: repeating-linear-gradient(
    to bottom,
    var(--c-primary) 0,
    var(--c-primary) 8px,
    transparent 8px,
    transparent 14px
  );
  background: var(--c-light);
  color: var(--c-secondary);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 01 品牌源起 ---------- */
.page-about .about-hero {
  position: relative;
  background: var(--c-secondary);
  color: var(--c-light);
  padding: 3rem 1.25rem 3.5rem;
  overflow: hidden;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    135deg,
    transparent 0 26px,
    rgba(255, 107, 0, 0.1) 26px 27px
  );
  pointer-events: none;
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -4rem;
  bottom: -4rem;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(198, 255, 0, 0.22) 0%, transparent 72%);
  pointer-events: none;
}
.page-about .about-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2.5rem;
  max-width: 1200px;
  margin: 0 auto;
}
.page-about .about-hero__kicker {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-family: var(--font-num);
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  color: var(--c-accent);
}
.page-about .about-hero .section-number {
  color: var(--c-primary);
}
.page-about .about-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.1rem, 7vw, 3.6rem);
  font-weight: 900;
  line-height: 1.05;
  margin: 1.1rem 0 1.2rem;
  color: var(--c-light);
}
.page-about .about-hero__tail {
  display: block;
  color: var(--c-primary);
  letter-spacing: -0.01em;
}
.page-about .about-hero__lead {
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.8;
  margin: 0 0 1rem;
  color: rgba(245, 247, 250, 0.95);
}
.page-about .about-hero__story {
  font-size: 0.98rem;
  line-height: 1.9;
  margin: 0 0 1.6rem;
  color: rgba(245, 247, 250, 0.75);
}
.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}
.page-about .about-hero__ghost-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: var(--border-w) solid rgba(245, 247, 250, 0.8);
  padding: 0.7rem 1.3rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--c-light);
  box-shadow: 4px 4px 0 rgba(245, 247, 250, 0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.page-about .about-hero__ghost-link:hover,
.page-about .about-hero__ghost-link:focus-visible {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(245, 247, 250, 0.4);
}
.page-about .about-hero__img {
  margin: 0;
  border: var(--border-w) solid var(--c-primary);
  box-shadow: 8px 8px 0 rgba(255, 107, 0, 0.55);
  background: var(--c-dark);
}
.page-about .image-shell img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 关键数据带 ---------- */
.page-about .about-stats {
  background: var(--c-secondary);
  border-top: var(--border-w) solid var(--c-primary);
  border-bottom: var(--border-w) solid var(--c-accent);
  padding: 2rem 1.25rem 2.5rem;
}
.page-about .about-stats__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
}
.page-about .about-stat {
  position: relative;
  padding-left: 1rem;
}
.page-about .about-stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35rem;
  bottom: 0.35rem;
  width: 0.35rem;
  background: var(--c-primary);
}
.page-about .about-stat__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(2.6rem, 8vw, 4.2rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--c-primary);
}
.page-about .about-stat__num em {
  font-style: normal;
  font-size: 0.5em;
  color: var(--c-accent);
  margin-left: 0.1em;
}
.page-about .about-stat__label {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.88rem;
  letter-spacing: 0.05em;
  color: rgba(245, 247, 250, 0.9);
}

/* ---------- 章节头 ---------- */
.page-about .about-section-head {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  max-width: 1200px;
  margin: 0 auto 1rem;
}
.page-about .about-section-head .section-number {
  color: var(--c-primary);
}
.page-about .about-section-head__body h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 4.5vw, 2.6rem);
  font-weight: 900;
  line-height: 1.2;
  margin: 0 0 0.35rem;
  color: var(--c-secondary);
}
.page-about .about-section-head__body p {
  margin: 0;
  max-width: 34rem;
  line-height: 1.8;
  color: var(--c-neutral);
}

/* ---------- 02 发展里程碑 ---------- */
.page-about .about-milestones {
  background: var(--c-light);
  padding: 3.5rem 1.25rem;
}
.page-about .about-timeline {
  list-style: none;
  margin: 3rem auto 0;
  padding: 0;
  max-width: 1200px;
}
.page-about .about-timeline__item {
  position: relative;
  padding: 0 0 2rem 2.2rem;
}
.page-about .about-timeline__item:last-child {
  padding-bottom: 0;
}
.page-about .about-timeline__item::before {
  content: "";
  position: absolute;
  left: 0.4rem;
  top: 0.8rem;
  bottom: 0.2rem;
  width: var(--border-w);
  background: var(--about-dash);
  opacity: 0.85;
}
.page-about .about-timeline__item:last-child::before {
  display: none;
}
.page-about .about-timeline__item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65rem;
  width: 0.8rem;
  height: 0.8rem;
  border: var(--border-w) solid var(--c-primary);
  border-radius: 50%;
  background: var(--c-light);
  box-shadow: 0 0 0 4px rgba(255, 107, 0, 0.18);
}
.page-about .about-timeline__year {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1.2;
  color: var(--c-primary);
  border: var(--border-w) solid var(--c-primary);
  background: #ffffff;
  box-shadow: 4px 4px 0 rgba(10, 31, 68, 0.12);
  padding: 0.15rem 0.7rem;
  margin-bottom: 0.9rem;
  min-width: 4.2rem;
  text-align: center;
}
.page-about .about-timeline__card {
  border: var(--border-w) solid var(--c-dark);
  box-shadow: var(--shadow-brutal-sm);
  background: #ffffff;
  padding: 1.25rem 1.3rem;
}
.page-about .about-timeline__card h3 {
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 900;
  margin: 0 0 0.5rem;
  color: var(--c-secondary);
}
.page-about .about-timeline__card p {
  margin: 0;
  line-height: 1.75;
  color: var(--c-neutral);
}

/* ---------- 03 团队与规模 ---------- */
.page-about .about-team {
  background: var(--c-light);
  padding: 3.5rem 1.25rem;
}
.page-about .about-team__grid {
  display: grid;
  gap: 2rem;
  max-width: 1200px;
  margin: 2rem auto 0;
}
.page-about .about-team__content > p {
  line-height: 1.85;
  color: var(--c-secondary);
}
.page-about .about-team__roles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}
.page-about .about-role {
  display: grid;
  grid-template-columns: 2.6rem 1fr;
  grid-template-areas:
    "icon title"
    "icon text";
  margin: 0;
  background: #ffffff;
  border: var(--border-w) solid var(--c-dark);
  box-shadow: var(--shadow-brutal-sm);
  padding: 1rem 1.1rem;
}
.page-about .about-role__icon {
  grid-area: icon;
  font-family: var(--font-num);
  font-weight: 900;
  font-size: 1.25rem;
  color: var(--c-primary);
}
.page-about .about-role h3 {
  grid-area: title;
  margin: 0;
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--c-secondary);
}
.page-about .about-role p {
  grid-area: text;
  margin: 0.3rem 0 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--c-neutral);
}
.page-about .about-team__img {
  margin: 0;
  border: var(--border-w) solid var(--c-primary);
  box-shadow: var(--shadow-brutal);
  background: var(--c-dark);
}
.page-about .about-team__note {
  max-width: 1200px;
  margin: 1.5rem auto 0;
  padding: 1rem 1.1rem;
  border-left: 0.45rem solid var(--c-accent);
  background: rgba(198, 255, 0, 0.14);
  font-weight: 700;
  line-height: 1.7;
  color: var(--c-secondary);
}

/* ---------- 04 覆盖赛事与数据能力 ---------- */
.page-about .about-coverage {
  background: var(--c-secondary);
  color: var(--c-light);
  padding: 3.5rem 1.25rem;
}
.page-about .about-coverage .about-section-head__body h2 {
  color: var(--c-light);
}
.page-about .about-coverage .about-section-head__body p {
  color: rgba(245, 247, 250, 0.72);
}
.page-about .about-coverage__grid {
  display: grid;
  gap: 1.8rem;
  max-width: 1200px;
  margin: 2rem auto 0;
}
.page-about .about-coverage__panel {
  background: var(--c-light);
  color: var(--c-secondary);
  border: var(--border-w) solid var(--c-primary);
  box-shadow: var(--shadow-primary);
  padding: 1.4rem;
}
.page-about .about-coverage__panel h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  margin: 0 0 0.6rem;
  color: var(--c-primary);
}
.page-about .about-coverage__panel h3 + h3 {
  margin-top: 1.2rem;
}
.page-about .about-league-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .about-league-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.55rem 0;
  border-bottom: 2px solid rgba(10, 31, 68, 0.12);
  font-weight: 700;
}
.page-about .about-league-sport {
  font-family: var(--font-num);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  background: var(--c-secondary);
  color: var(--c-accent);
  padding: 0.2rem 0.5rem;
}
.page-about .about-capability-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-about .about-capability-list li {
  position: relative;
  padding: 0.35rem 0 0.35rem 1.5rem;
  line-height: 1.6;
  color: var(--c-dark);
}
.page-about .about-capability-list li::before {
  content: "▹";
  position: absolute;
  left: 0.2rem;
  font-weight: 900;
  color: var(--c-primary);
}
.page-about .about-coverage__img {
  margin: 0;
  border: var(--border-w) solid rgba(245, 247, 250, 0.5);
  box-shadow: var(--shadow-brutal);
  background: var(--c-dark);
}
.page-about .about-coverage__data {
  background: var(--c-dark);
  border: var(--border-w) solid var(--c-primary);
  box-shadow: var(--shadow-primary);
  padding: 1.5rem;
}
.page-about .about-coverage__data h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin: 0 0 1rem;
  color: var(--c-primary);
}
.page-about .about-coverage__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.page-about .about-coverage__metric strong {
  font-family: var(--font-num);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  display: block;
  line-height: 1.2;
  color: var(--c-accent);
}
.page-about .about-coverage__metric span {
  font-size: 0.82rem;
  color: rgba(245, 247, 250, 0.7);
}
.page-about .about-coverage__data p {
  margin: 1.2rem 0 0;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.8);
}

/* ---------- 05 资质与合作 ---------- */
.page-about .about-credential {
  background: var(--c-light);
  padding: 3.5rem 1.25rem;
}
.page-about .about-credential__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  max-width: 1200px;
  margin: 2rem auto 0;
}
.page-about .about-credential__item {
  margin: 0;
  background: #ffffff;
  border: var(--border-w) solid var(--c-dark);
  box-shadow: var(--shadow-brutal-sm);
  padding: 1.4rem;
}
.page-about .about-credential__item h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 900;
  margin: 0 0 0.6rem;
  padding-left: 0.9rem;
  border-left: 0.4rem solid var(--c-primary);
  color: var(--c-secondary);
}
.page-about .about-credential__item p {
  margin: 0;
  line-height: 1.75;
  color: var(--c-neutral);
}

/* ---------- 底部 CTA ---------- */
.page-about .about-cta {
  background: var(--c-light);
  padding: 0 1.25rem 4rem;
}
.page-about .about-cta__inner {
  max-width: 1200px;
  margin: 0 auto;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-secondary) 72%);
  border: var(--border-w) solid var(--c-dark);
  box-shadow: var(--shadow-brutal);
  padding: 2.4rem 1.4rem;
  text-align: center;
  color: var(--c-light);
}
.page-about .about-cta__inner h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  font-weight: 900;
  margin: 0 0 0.6rem;
  color: var(--c-light);
}
.page-about .about-cta__inner p {
  margin: 0 auto 1.4rem;
  max-width: 30rem;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.86);
}
.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.8rem;
}

/* ---------- 桌面端布局 ---------- */
@media (min-width: 760px) {
  .page-about .about-hero {
    padding: 4rem 2rem 5rem;
  }
  .page-about .about-hero__inner {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 3rem;
  }
  .page-about .about-hero h1 {
    font-size: 3rem;
  }
  .page-about .about-stats {
    padding: 2.5rem 2rem 3rem;
  }
  .page-about .about-stats__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
  .page-about .about-milestones,
  .page-about .about-team,
  .page-about .about-credential {
    padding: 5rem 2rem;
  }
  .page-about .about-coverage {
    padding: 5rem 2rem;
  }
  .page-about .about-section-head {
    flex-direction: row;
    align-items: flex-start;
    gap: 1.5rem;
  }
  .page-about .about-section-head__body {
    padding-top: 0.2rem;
  }
  .page-about .about-team__grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: start;
    gap: 3rem;
  }
  .page-about .about-team__roles {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .about-coverage__grid {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: stretch;
  }
  .page-about .about-coverage__img {
    margin: 0;
  }
  .page-about .about-coverage__data {
    grid-column: 1 / -1;
  }
  .page-about .about-credential__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  .page-about .about-cta {
    padding: 0 2rem 5rem;
  }
  .page-about .about-cta__inner {
    padding: 3.5rem 3rem;
  }
}