.page-about {
  --about-axis: 240px;
  --about-hair: rgba(43, 245, 200, 0.32);
  --about-grid-line: rgba(155, 255, 232, 0.07);
  overflow-x: clip;
}

/* ---------- 首屏：左叙事 + 右档案概览 ---------- */
.page-about .about-hero {
  padding-bottom: clamp(36px, 6vw, 72px);
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: end;
}

.page-about .about-hero__lede {
  min-width: 0;
}

.page-about .about-hero__lede h1 {
  margin: 8px 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--chalk-50);
}

.page-about .about-hero__lead {
  max-width: 60ch;
  margin: 0 0 16px;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.78;
  color: var(--text-soft);
}

.page-about .about-hero__lead--note {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--cyan-500);
  font-size: 15px;
  color: var(--mist-400);
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .about-hero__panel {
  padding: clamp(20px, 3vw, 32px);
  border-radius: var(--r-lg);
  border-top: 2px solid var(--cyan-500);
  background-image:
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px);
  background-size: 34px 34px;
}

.page-about .about-hero__panel-title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--mist-400);
}

.page-about .about-figures {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 16px;
}

.page-about .about-figures__item {
  min-width: 0;
}

.page-about .about-figures__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan-500);
}

.page-about .about-figures__unit {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--chalk-50);
}

.page-about .about-figures__desc {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: var(--mist-400);
}

/* ---------- 主体：左侧赛季阶段轴 + 右侧档案叙述 ---------- */
.page-about .about-rail {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  padding-top: clamp(24px, 4vw, 48px);
}

.page-about .about-rail__axis,
.page-about .about-rail__body {
  min-width: 0;
}

.page-about .about-rail__axis-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--mist-400);
}

.page-about .about-axis {
  list-style: none;
  margin: 0;
  padding: 0 0 0 22px;
  position: relative;
}

.page-about .about-axis::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan-500), rgba(43, 245, 200, 0.08));
}

.page-about .about-axis__item {
  position: relative;
  padding-bottom: 20px;
}

.page-about .about-axis__item:last-child {
  padding-bottom: 0;
}

.page-about .about-axis__item::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 4px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 1px solid var(--about-hair);
  background: var(--ink-900);
}

.page-about .about-axis__stage {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-200);
}

.page-about .about-axis__label {
  display: block;
  margin-top: 4px;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--chalk-50);
}

/* ---------- 章节 ---------- */
.page-about .about-chapter {
  padding-top: clamp(26px, 4vw, 40px);
  border-top: 1px solid var(--ink-700);
}

.page-about .about-chapter:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-about .about-chapter + .about-chapter {
  margin-top: clamp(36px, 5vw, 64px);
}

.page-about .about-chapter h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--chalk-50);
}

.page-about .about-chapter h2::after {
  content: "";
  display: block;
  width: 46px;
  height: 3px;
  margin-top: 14px;
  background: var(--ember-500);
  transform: skewX(-24deg);
}

.page-about .prose {
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.78;
}

.page-about .prose p {
  max-width: 66ch;
  margin: 0 0 16px;
}

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

.page-about .about-chapter__media {
  margin: 26px 0 0;
}

.page-about .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--r-md);
}

.page-about .media-frame__cap {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist-400);
}

/* ---------- 角色卡 ---------- */
.page-about .about-roles {
  margin-top: 24px;
}

.page-about .about-role {
  padding: 20px;
  border-radius: var(--r-md);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.page-about .about-role p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-dim);
}

.page-about .about-role__hl {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  font-weight: 700;
  color: var(--ember-500);
}

/* ---------- 档案表 ---------- */
.page-about .about-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-about .about-table__cap {
  padding: 0 0 12px;
  text-align: left;
  font-size: 12px;
  color: var(--mist-400);
}

.page-about .about-table th,
.page-about .about-table td {
  text-align: left;
  vertical-align: top;
  padding: 13px 14px;
  border-bottom: 1px solid var(--ink-700);
  color: var(--text-soft);
  line-height: 1.65;
}

.page-about .about-table thead th {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan-200);
  white-space: nowrap;
}

.page-about .about-table tbody tr:hover {
  background: rgba(155, 255, 232, 0.05);
}

/* ---------- 赛季折叠 ---------- */
.page-about .about-folds {
  margin-top: 24px;
}

.page-about .fold {
  border: 1px solid var(--ink-700);
  border-radius: var(--r-md);
  background: var(--ink-800);
}

.page-about .fold + .fold {
  margin-top: 10px;
}

.page-about .fold__head {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  border: 0;
  background: none;
  color: var(--chalk-50);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}

.page-about .fold__meta {
  flex: none;
  font-size: 12px;
  font-weight: 400;
  color: var(--cyan-500);
}

.page-about .fold__inner {
  padding: 0 18px 18px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-about .fold__inner p {
  margin: 0;
  max-width: 64ch;
}

/* ---------- 做法卡 ---------- */
.page-about .about-promises {
  margin-top: 4px;
}

.page-about .about-promise {
  padding: 22px 20px;
  border-radius: var(--r-md);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-about .about-promise__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ember-500);
}

.page-about .about-promise h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  color: var(--chalk-50);
}

.page-about .about-promise p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-dim);
}

/* ---------- 赛季节点 ---------- */
.page-about .about-miles {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.page-about .about-miles__item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--ink-700);
}

.page-about .about-miles__item:last-child {
  border-bottom: 1px solid var(--ink-700);
}

.page-about .about-miles__idx {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan-500);
}

.page-about .about-miles__text h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.4;
  color: var(--chalk-50);
}

.page-about .about-miles__text p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text-dim);
}

/* ---------- 合作入口 ---------- */
.page-about .about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

/* ---------- 结尾行动区 ---------- */
.page-about .about-cta__inner {
  display: grid;
  gap: 22px;
  padding: clamp(24px, 4vw, 44px);
  border-radius: var(--r-lg);
  border-left: 3px solid var(--ember-500);
}

.page-about .about-cta__inner h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.25;
  color: var(--chalk-50);
}

.page-about .about-cta__inner p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-soft);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 800px) {
  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 920px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  }
}

@media (min-width: 1000px) {
  .page-about .about-rail {
    grid-template-columns: var(--about-axis) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 80px);
  }

  .page-about .about-rail__axis {
    position: sticky;
    top: 104px;
    align-self: start;
  }
}

@media (max-width: 560px) {
  .page-about .about-figures {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .page-about .about-miles__item {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}