.page-about {
  --about-pad: clamp(52px, 9vw, 104px);
  --about-gap: clamp(22px, 4vw, 44px);
  color: var(--text);
  background:
    radial-gradient(120% 62% at 82% -10%, rgba(59, 240, 200, 0.10), transparent 62%),
    radial-gradient(95% 55% at 6% 20%, rgba(245, 166, 59, 0.055), transparent 62%),
    var(--ink-900);
  overflow-x: clip;
}

/* 面包屑 */
.page-about .about-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: calc(var(--header-h) + 26px);
  padding-bottom: 4px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-about .about-crumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .about-crumb a:hover,
.page-about .about-crumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* 首屏 */
.page-about .about-hero {
  display: grid;
  gap: clamp(26px, 5vw, 40px);
  padding-top: clamp(20px, 4vw, 38px);
  padding-bottom: var(--about-pad);
}

.page-about .eyebrow {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-about .about-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.05rem, 8vw, 4.1rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.page-about .hero-lede {
  margin: clamp(18px, 3vw, 26px) 0 0;
  max-width: 34em;
  font-size: clamp(1rem, 2.4vw, 1.06rem);
  line-height: 1.85;
  color: var(--muted);
}

.page-about .hero-index {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  border-top: 1px solid var(--line-soft);
  padding-top: 16px;
}

.page-about .hero-index__title {
  width: 100%;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--muted);
}

.page-about .hero-index a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 1px solid var(--line);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-about .hero-index a:hover,
.page-about .hero-index a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* 章节通用 */
.page-about .about-section {
  padding: var(--about-pad) 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .sec-head {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: clamp(12px, 3vw, 26px);
  align-items: start;
  margin-bottom: clamp(20px, 3.5vw, 32px);
}

.page-about .sec-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 5.2vw, 2.5rem);
  line-height: 1.18;
  letter-spacing: -0.015em;
}

.page-about .note-vertical {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.2em;
  color: var(--muted);
  padding: 4px 0 4px 6px;
  border-left: 1px solid var(--line);
}

.page-about .sec-lede {
  margin: 0 0 clamp(22px, 4vw, 34px);
  max-width: 40em;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-section p {
  margin: 0 0 14px;
  max-width: 40em;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
}

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

/* 图片 */
.page-about .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-lg);
  filter: brightness(0.84) saturate(0.95);
}

/* 品牌由来 */
.page-about .brand-split {
  display: grid;
  gap: var(--about-gap);
}

.page-about .brand-figure {
  margin: 0;
}

/* 团队分组 */
.page-about .team-cards {
  display: grid;
  gap: 14px;
}

.page-about .team-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(18px, 3vw, 26px);
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-about .team-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), transparent 70%);
  opacity: 0.75;
}

.page-about .team-card:nth-child(2)::after {
  background: linear-gradient(90deg, var(--amber), transparent 70%);
}

.page-about .team-card:nth-child(3)::after {
  background: linear-gradient(90deg, var(--orange), transparent 70%);
}

.page-about .team-card__num {
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1;
  font-weight: 700;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-about .team-card:nth-child(2) .team-card__num {
  color: var(--amber);
}

.page-about .team-card:nth-child(3) .team-card__num {
  color: var(--orange);
}

.page-about .team-card h3 {
  margin: 0;
  font-size: 1.04rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-about .team-card p {
  margin: 0;
  max-width: none;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--muted);
}

/* 比赛日 */
.page-about .matchday-grid {
  display: grid;
  gap: var(--about-gap);
}

.page-about .matchday-figure {
  margin: 0;
}

.page-about .dayline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  border-left: 1px solid var(--line);
  display: grid;
  gap: clamp(18px, 3vw, 24px);
}

.page-about .dayline__step {
  position: relative;
}

.page-about .dayline__step::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 5px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(59, 240, 200, 0.09);
}

.page-about .dayline__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-about .dayline__step h3 {
  margin: 5px 0 6px;
  font-size: 1rem;
  font-weight: 700;
}

.page-about .dayline__step p {
  margin: 0;
  max-width: 30em;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--muted);
}

/* 栏目列表 */
.page-about .routes {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-about .route {
  border-bottom: 1px solid var(--line-soft);
}

.page-about .route__link {
  display: grid;
  grid-template-columns: 2.6em minmax(0, 1fr);
  align-items: baseline;
  gap: 6px clamp(12px, 2.5vw, 22px);
  padding: clamp(16px, 3vw, 24px) 0;
  text-decoration: none;
  color: var(--text);
  transition: color 0.25s var(--ease), padding-left 0.25s var(--ease);
}

.page-about .route__no {
  grid-column: 1;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-about .route__name {
  grid-column: 2;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.12rem, 3.4vw, 1.45rem);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.page-about .route__desc {
  grid-column: 2;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-about .route__link:hover,
.page-about .route__link:focus-visible {
  color: var(--cyan);
  padding-left: 8px;
}

/* 赛季时间轴 */
.page-about .seasons {
  list-style: none;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0 0 0 26px;
  border-left: 1px solid var(--line);
  display: grid;
  gap: clamp(20px, 3.6vw, 34px);
}

.page-about .season {
  position: relative;
}

.page-about .season::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 3px;
  background: var(--amber);
  transform: rotate(45deg);
  box-shadow: 0 0 0 4px rgba(245, 166, 59, 0.1);
}

.page-about .season__tag {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--amber);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.page-about .season h3 {
  margin: 9px 0 6px;
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .season p {
  margin: 0;
  max-width: 36em;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--muted);
}

/* 协作 */
.page-about .coop-figure {
  margin: clamp(24px, 4vw, 36px) 0 0;
}

/* 收尾 */
.page-about .about-outro {
  display: grid;
  gap: clamp(20px, 3vw, 28px);
  padding-top: var(--about-pad);
  border-top: 1px solid var(--line-soft);
}

.page-about .outro-line {
  margin: 0;
  max-width: 22em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.28rem, 4.6vw, 2rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-about .outro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 平板与桌面 */
@media (min-width: 760px) {
  .page-about .team-cards {
    display: flex;
    align-items: stretch;
    gap: 16px;
  }

  .page-about .team-card:nth-child(1) {
    flex: 5 1 0;
  }

  .page-about .team-card:nth-child(2) {
    flex: 4 1 0;
  }

  .page-about .team-card:nth-child(3) {
    flex: 3 1 0;
  }

  .page-about .route__link {
    grid-template-columns: 3em minmax(0, 0.52fr) minmax(0, 1fr);
  }

  .page-about .route__name {
    grid-column: 2;
  }

  .page-about .route__desc {
    grid-column: 3;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 1fr) 200px;
    align-items: start;
  }

  .page-about .hero-index {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
    border-top: 0;
    border-left: 1px solid var(--line);
    padding: 2px 0 2px 20px;
  }

  .page-about .hero-index a {
    position: relative;
    padding: 7px 0;
    border-bottom: 0;
  }

  .page-about .hero-index a::before {
    content: "";
    position: absolute;
    left: -20px;
    top: 50%;
    width: 0;
    height: 1px;
    background: var(--cyan);
    transition: width 0.3s var(--ease);
  }

  .page-about .hero-index a:hover::before,
  .page-about .hero-index a:focus-visible::before {
    width: 13px;
  }

  .page-about .brand-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    align-items: center;
  }

  .page-about .brand-figure {
    margin-right: calc(-1 * var(--gutter));
  }

  .page-about .brand-figure img {
    border-radius: var(--r-lg) 0 0 var(--r-lg);
  }

  .page-about .seasons {
    padding-left: 34px;
  }

  .page-about .season::before {
    left: -40px;
  }
}

@media (min-width: 940px) {
  .page-about .matchday-grid {
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .matchday-figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-about .dayline {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    padding: 42px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line);
    gap: 14px;
  }

  .page-about .dayline__step {
    padding-right: 6px;
  }

  .page-about .dayline__step::before {
    left: 0;
    top: -47px;
  }

  .page-about .dayline__step p {
    max-width: none;
  }
}

@media (min-width: 1100px) {
  .page-about .seasons {
    padding-left: 44px;
  }

  .page-about .season::before {
    left: -50px;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-about .route__link,
  .page-about .hero-index a,
  .page-about .about-crumb a {
    will-change: auto;
  }
}
<<<END>>>