.page-about {
  background: var(--hth-ink);
  color: var(--hth-mist);
  font-family: var(--hth-font-body);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: hidden;
}

.page-about a {
  color: inherit;
}

.page-about .hth-crumbs {
  padding-top: clamp(16px, 2.4vw, 28px);
  color: var(--hth-mist);
}

/* ---------- 档案头 ---------- */
.page-about .ab-masthead {
  border-bottom: 1px solid var(--hth-line);
}

.page-about .ab-masthead__inner {
  padding: clamp(26px, 4.6vw, 52px) 0 clamp(30px, 5vw, 60px);
}

.page-about .ab-masthead__kicker {
  margin: 0 0 16px;
  font-family: var(--hth-font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--hth-orange);
}

.page-about .ab-masthead__title {
  margin: 0;
  font-family: var(--hth-font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.08;
  color: var(--hth-paper);
  font-size: clamp(28px, 6.6vw, 62px);
}

.page-about .ab-masthead__lede {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--hth-mist);
}

.page-about .ab-stats {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--hth-line);
  border: 1px solid var(--hth-line);
  border-radius: var(--hth-radius);
  overflow: hidden;
}

.page-about .ab-stats__item {
  background: var(--hth-ink);
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .ab-stats__num {
  font-family: var(--hth-font-mono);
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--hth-neon);
}

.page-about .ab-stats__label {
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--hth-mist);
}

/* ---------- 双栏骨架 ---------- */
.page-about .ab-body {
  padding-top: clamp(28px, 4.6vw, 56px);
}

.page-about .ab-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 48px);
}

.page-about .ab-main {
  min-width: 0;
}

/* ---------- 章节索引 ---------- */
.page-about .ab-index__panel {
  border: 1px solid var(--hth-line);
  background: var(--hth-panel);
  border-radius: var(--hth-radius);
  padding: 16px 14px;
}

.page-about .ab-index__title {
  margin: 0 0 12px;
  font-family: var(--hth-font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--hth-teal);
}

.page-about .ab-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .ab-index__list li {
  flex: 0 0 auto;
}

.page-about .ab-index__list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--hth-line);
  border-radius: var(--hth-radius);
  font-size: 13px;
  line-height: 1.4;
  white-space: nowrap;
  color: var(--hth-mist);
  text-decoration: none;
  transition: border-color 0.18s var(--hth-ease), color 0.18s var(--hth-ease);
}

.page-about .ab-index__list a:hover,
.page-about .ab-index__list a:focus-visible {
  border-color: var(--hth-neon);
  color: var(--hth-neon);
}

.page-about .ab-index__no {
  font-family: var(--hth-font-mono);
  font-size: 11px;
  color: var(--hth-orange);
}

/* ---------- 章节 ---------- */
.page-about .ab-chapter {
  scroll-margin-top: 24px;
}

.page-about .ab-chapter + .ab-chapter {
  margin-top: clamp(34px, 5vw, 64px);
  padding-top: clamp(28px, 4vw, 48px);
  border-top: 1px solid var(--hth-line);
}

.page-about .ab-chapter__head {
  display: flex;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 16px;
}

.page-about .ab-chapter__no {
  font-family: var(--hth-font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--hth-orange);
}

.page-about .ab-chapter__title {
  margin: 0;
  font-family: var(--hth-font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.24;
  color: var(--hth-paper);
  font-size: clamp(21px, 3.4vw, 32px);
}

.page-about .ab-p p {
  margin: 0 0 14px;
  max-width: 68ch;
  font-size: clamp(15px, 1.4vw, 16.5px);
  line-height: 1.8;
  color: var(--hth-mist);
}

/* ---------- 四类资料 ---------- */
.page-about .ab-shelf {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--hth-line);
  border: 1px solid var(--hth-line);
  border-radius: var(--hth-radius);
  overflow: hidden;
  margin: 22px 0 18px;
}

.page-about .ab-shelf__cell {
  background: var(--hth-panel);
  padding: 16px 14px;
}

.page-about .ab-shelf__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
}

.page-about .ab-shelf__name {
  margin: 0;
  font-family: var(--hth-font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--hth-paper);
}

.page-about .ab-shelf__fig {
  font-family: var(--hth-font-mono);
  font-size: 12.5px;
  color: var(--hth-neon);
  white-space: nowrap;
}

.page-about .ab-shelf__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--hth-mist);
}

/* ---------- 团队 ---------- */
.page-about .ab-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 4px 0 16px;
  font-family: var(--hth-font-mono);
  font-size: 12px;
}

.page-about .ab-flow__item {
  padding: 6px 10px;
  border: 1px solid var(--hth-line);
  border-radius: var(--hth-radius);
  color: var(--hth-mist);
}

.page-about .ab-flow__sep {
  color: var(--hth-teal);
}

.page-about .ab-crew {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--hth-line);
  border: 1px solid var(--hth-line);
  border-radius: var(--hth-radius);
  overflow: hidden;
}

.page-about .ab-crew__cell {
  background: var(--hth-ink);
  padding: 16px 14px;
}

.page-about .ab-crew__n {
  display: block;
  font-family: var(--hth-font-mono);
  font-size: 28px;
  line-height: 1;
  color: var(--hth-yellow);
}

.page-about .ab-crew__role {
  margin: 8px 0 6px;
  font-family: var(--hth-font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--hth-paper);
}

.page-about .ab-crew__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--hth-mist);
}

/* ---------- 赛季折叠 ---------- */
.page-about .ab-seasons {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 20px 0 18px;
}

.page-about .ab-season {
  border: 1px solid var(--hth-line);
  border-left: 3px solid var(--hth-orange);
  border-radius: var(--hth-radius);
  background: var(--hth-panel);
}

.page-about .ab-season summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  padding: 14px 14px;
  cursor: pointer;
  list-style: none;
}

.page-about .ab-season summary::-webkit-details-marker {
  display: none;
}

.page-about .ab-season summary::after {
  content: "+";
  font-family: var(--hth-font-mono);
  font-size: 15px;
  color: var(--hth-neon);
}

.page-about .ab-season[open] summary::after {
  content: "−";
}

.page-about .ab-season[open] summary {
  border-bottom: 1px solid var(--hth-line);
}

.page-about .ab-season__no {
  font-family: var(--hth-font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--hth-orange);
}

.page-about .ab-season__name {
  font-family: var(--hth-font-display);
  font-weight: 700;
  font-size: clamp(14.5px, 1.9vw, 18px);
  line-height: 1.4;
  color: var(--hth-paper);
}

.page-about .ab-season__body {
  padding: 12px 14px 16px;
}

.page-about .ab-season__body p {
  margin: 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--hth-mist);
}

/* ---------- 数字碑刻 ---------- */
.page-about .ab-marks {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
  margin: 22px 0 18px;
}

.page-about .ab-marks__item {
  border-left: 2px solid var(--hth-teal);
  padding-left: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .ab-marks__v {
  font-family: var(--hth-font-mono);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--hth-paper);
}

.page-about .ab-marks__k {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--hth-mist);
}

/* ---------- 图片 ---------- */
.page-about .ab-figure {
  margin: 22px 0 0;
}

.page-about .ab-figure .hth-figure__frame {
  overflow: hidden;
  border: 1px solid var(--hth-line);
  border-radius: var(--hth-radius);
  background: var(--hth-panel);
}

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

.page-about .ab-figure .hth-figure__cap {
  margin-top: 8px;
  font-family: var(--hth-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--hth-teal);
}

/* ---------- 结尾奶油纸 ---------- */
.page-about .ab-close {
  margin-top: clamp(38px, 6vw, 72px);
  background: var(--hth-paper);
  color: var(--hth-brown);
  border-radius: var(--hth-radius);
  padding: clamp(22px, 4vw, 44px);
  border: 1px solid var(--hth-line);
}

.page-about .ab-close__title {
  margin: 0 0 14px;
  font-family: var(--hth-font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
  font-size: clamp(20px, 3vw, 28px);
  color: var(--hth-brown);
}

.page-about .ab-close__text {
  margin: 0 0 14px;
  max-width: 64ch;
  font-size: clamp(15px, 1.4vw, 16px);
  line-height: 1.8;
  color: var(--hth-brown);
}

.page-about .ab-close__meta {
  margin: 0 0 20px;
  font-family: var(--hth-font-mono);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--hth-brown);
  padding-top: 12px;
  border-top: 1px solid var(--hth-teal);
}

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

.page-about .ab-close__links {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--hth-brown);
}

.page-about .ab-close__links a {
  color: var(--hth-brown);
  text-decoration: underline;
  text-decoration-color: var(--hth-orange);
  text-underline-offset: 3px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .ab-shelf {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .ab-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .ab-stats__item {
    padding: 18px 16px;
  }
}

@media (min-width: 720px) {
  .page-about .ab-marks {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-about .ab-split {
    grid-template-columns: minmax(0, 280px) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .ab-index__inner {
    position: sticky;
    top: clamp(16px, 2vw, 28px);
  }

  .page-about .ab-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }

  .page-about .ab-index__list a {
    border: 0;
    border-bottom: 1px solid var(--hth-line);
    border-radius: 0;
    padding: 11px 0;
    white-space: normal;
  }

  .page-about .ab-index__list li:last-child a {
    border-bottom: 0;
  }

  .page-about .ab-crew {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .ab-crew__cell {
    padding: 18px 16px;
  }

  .page-about .ab-season summary {
    padding: 16px 18px;
  }

  .page-about .ab-season__body {
    padding: 14px 18px 18px;
  }
}

@media (min-width: 1100px) {
  .page-about .ab-p p {
    font-size: 16.5px;
  }
}