.page-about {
  background: var(--ink);
  color: var(--chalk);
  font-family: var(--body);
  line-height: 1.75;
  overflow-x: clip;
  padding-bottom: clamp(40px, 7vw, 80px);
}

.page-about .about-top {
  padding-top: clamp(20px, 4vw, 40px);
}

.page-about .about-intro {
  display: grid;
  gap: clamp(14px, 2.5vw, 22px);
  padding-bottom: clamp(28px, 5vw, 52px);
}

.page-about .about-intro h1 {
  margin: 0;
  font-family: var(--display);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--chalk);
  max-width: 14em;
  text-wrap: balance;
}

.page-about .about-lede {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(16px, 1.9vw, 18px);
  line-height: 1.9;
  color: var(--sage);
}

.page-about .band {
  padding-block: clamp(36px, 7vw, 76px);
}

.page-about .band--moss {
  background: var(--moss);
}

.page-about .band--wine {
  background: var(--wine);
}

/* 数字带 */
.page-about .about-numbers {
  list-style: none;
  margin: 0 0 clamp(20px, 4vw, 36px);
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line-strong);
}

.page-about .num-item {
  background: var(--ink);
  padding: clamp(16px, 3vw, 26px) clamp(14px, 2.4vw, 22px);
}

.page-about .num-val {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(30px, 4.6vw, 44px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-about .num-val em {
  font-style: normal;
  font-size: 0.4em;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--teal);
  margin-left: 4px;
}

.page-about .num-label {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--sage);
}

/* 品牌宣言 */
.page-about .manifesto-grid {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-about .manifesto-quote {
  margin: 0;
  padding-left: clamp(14px, 2vw, 22px);
  border-left: 3px solid var(--lime);
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(22px, 3.2vw, 36px);
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-about .manifesto-body {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
  max-width: 70ch;
}

.page-about .manifesto-body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--sage);
}

.page-about .about-figure {
  margin: clamp(26px, 5vw, 48px) 0 0;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--moss);
}

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

.page-about .about-figure figcaption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 28px 16px 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--sage);
  background: linear-gradient(to top, rgba(5, 11, 9, 0.92), rgba(5, 11, 9, 0));
}

/* 通用小节抬头 */
.page-about .about-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(22px, 4vw, 36px);
  max-width: 72ch;
}

.page-about .about-head h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(24px, 3.8vw, 42px);
  line-height: 1.18;
  letter-spacing: -0.025em;
  color: var(--chalk);
}

.page-about .about-head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--sage);
}

/* 赛季历程 */
.page-about .pitch-strip {
  margin: 0 0 clamp(24px, 4vw, 44px);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--moss);
}

.page-about .pitch-strip img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-about .journey {
  display: grid;
  gap: clamp(22px, 4vw, 44px);
}

.page-about .season-rail {
  overflow-x: auto;
  padding: 2px 0 10px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-about .season-rail::-webkit-scrollbar {
  display: none;
}

.page-about .season-rail ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 6px;
  min-width: max-content;
}

.page-about .rail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--sage);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s ease-out, background-color 0.18s ease-out, border-color 0.18s ease-out;
}

.page-about .rail-num {
  color: var(--lime);
  font-weight: 700;
}

.page-about .rail-link:hover,
.page-about .rail-link:focus-visible {
  color: var(--chalk);
  background: var(--glow);
  border-color: var(--line-strong);
}

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

.page-about .season-entries {
  display: grid;
  gap: clamp(14px, 2.4vw, 20px);
}

.page-about .season-entry {
  padding: clamp(18px, 3vw, 30px);
  background: var(--moss);
  border-left: 2px solid rgba(159, 179, 170, 0.22);
  border-radius: var(--radius);
  scroll-margin-top: calc(var(--header-h) + 28px);
  transition: border-color 0.2s ease-out, background-color 0.2s ease-out;
}

.page-about .season-entry:nth-child(even) {
  background: var(--glass);
}

.page-about .season-entry:hover,
.page-about .season-entry:focus-within {
  border-left-color: var(--lime);
}

.page-about .season-tag {
  margin: 0 0 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-about .season-entry h3 {
  margin: 0 0 10px;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-about .season-entry p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--sage);
}

/* 团队 */
.page-about .team-grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-about .team-figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink);
}

.page-about .team-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-about .role-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
}

.page-about .role {
  background: var(--ink);
  padding: clamp(16px, 2.6vw, 24px);
}

.page-about .role-count {
  display: block;
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(26px, 3.6vw, 36px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-about .role h3 {
  margin: 10px 0 6px;
  font-family: var(--display);
  font-weight: 800;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-about .role p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--sage);
}

/* 三段链路 */
.page-about .chain {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line-strong);
}

.page-about .chain-step {
  position: relative;
  background: var(--ink);
  padding: clamp(20px, 3vw, 30px);
}

.page-about .chain-step::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(to right, var(--lime), var(--teal));
  opacity: 0.55;
}

.page-about .chain-step__tag {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--flare);
}

.page-about .chain-step h3 {
  margin: 0 0 10px;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(18px, 2.3vw, 22px);
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-about .chain-step p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--sage);
}

/* 合作生态 */
.page-about .partner-grid {
  display: grid;
  gap: clamp(16px, 2.6vw, 24px);
}

.page-about .partner {
  padding: clamp(20px, 3vw, 30px);
  background: rgba(5, 11, 9, 0.34);
  border: 1px solid rgba(242, 247, 244, 0.16);
  border-radius: var(--radius);
}

.page-about .partner-num {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(38px, 5.6vw, 60px);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--chalk);
}

.page-about .partner h3 {
  margin: 0 0 10px;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(18px, 2.3vw, 22px);
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-about .partner p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 247, 244, 0.78);
}

/* 运营与服务 */
.page-about .commit-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-about .commit-list {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}

.page-about .commit-row {
  display: grid;
  gap: 2px;
  padding: 14px 0;
  background: var(--ink);
}

.page-about .commit-row dt {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--teal);
}

.page-about .commit-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--chalk);
}

.page-about .contact-panel {
  padding: clamp(18px, 3vw, 28px);
  background: var(--glass);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.page-about .contact-label {
  margin: 0 0 4px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--sage);
}

.page-about .contact-mail {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: clamp(14px, 2.2vw, 17px);
  line-height: 1.5;
  color: var(--lime);
  word-break: break-all;
}

.page-about .copy-hint {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--teal);
}

.page-about .copy-hint:empty {
  display: none;
}

.page-about .contact-rows {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 12px;
}

.page-about .contact-row dt {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--sage);
}

.page-about .contact-row dd {
  margin: 2px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--chalk);
}

.page-about .contact-row dd.num {
  font-family: var(--mono);
  letter-spacing: 0.01em;
}

/* 继续了解 */
.page-about .next-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}

.page-about .next-card {
  display: grid;
  gap: 6px;
  padding: clamp(18px, 3vw, 28px);
  background: var(--ink);
  text-decoration: none;
  color: inherit;
  transition: background-color 0.2s ease-out;
}

.page-about .next-index {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-about .next-card h3 {
  margin: 0;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 22px);
  letter-spacing: -0.02em;
  color: var(--chalk);
}

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

.page-about .next-arrow {
  font-family: var(--mono);
  font-size: 16px;
  color: var(--lime);
  transition: transform 0.2s ease-out;
}

.page-about .next-card:hover,
.page-about .next-card:focus-visible {
  background: var(--moss);
}

.page-about .next-card:hover .next-arrow,
.page-about .next-card:focus-visible .next-arrow {
  transform: translateX(5px);
}

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

/* 响应式 */
@media (min-width: 700px) {
  .page-about .role-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 900px) {
  .page-about .about-numbers {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .manifesto-grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }

  .page-about .journey {
    grid-template-columns: minmax(150px, 190px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(28px, 4vw, 56px);
  }

  .page-about .season-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    overflow: visible;
    padding: 0 0 0 2px;
    border-left: 1px solid var(--line);
  }

  .page-about .season-rail ol {
    display: block;
    min-width: 0;
  }

  .page-about .season-rail li + li {
    margin-top: 2px;
  }

  .page-about .rail-link {
    display: flex;
    width: 100%;
    min-height: 44px;
    padding: 8px 0 8px 20px;
    border: 0;
    border-radius: 0;
    white-space: normal;
  }

  .page-about .rail-link::before {
    content: "";
    position: absolute;
    left: -5px;
    top: 50%;
    width: 9px;
    height: 9px;
    margin-top: -4.5px;
    border-radius: 50%;
    background: var(--sage);
    transition: background-color 0.18s ease-out, box-shadow 0.18s ease-out;
  }

  .page-about .rail-link {
    position: relative;
  }

  .page-about .rail-link:hover::before,
  .page-about .rail-link:focus-visible::before {
    background: var(--lime);
    box-shadow: 0 0 0 4px var(--glow);
  }

  .page-about .rail-link:hover,
  .page-about .rail-link:focus-visible {
    background: transparent;
    border-color: transparent;
  }

  .page-about .team-grid {
    grid-template-columns: 7fr 5fr;
    gap: clamp(32px, 5vw, 60px);
  }

  .page-about .commit-grid {
    grid-template-columns: 8fr 4fr;
    gap: clamp(32px, 5vw, 60px);
  }

  .page-about .commit-row {
    grid-template-columns: 130px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
    padding: 16px 0;
  }

  .page-about .commit-row dd {
    text-align: right;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .rail-link,
  .page-about .rail-link::before,
  .page-about .next-card,
  .page-about .next-arrow,
  .page-about .season-entry {
    transition: none;
  }

  .page-about .next-card:hover .next-arrow,
  .page-about .next-card:focus-visible .next-arrow {
    transform: none;
  }
}
<<<END>>>