.page-about {
  --ab-rule: rgba(42, 29, 24, .16);
  --ab-rule-dark: rgba(202, 211, 205, .22);
  --ab-soft: rgba(42, 29, 24, .78);
  background: var(--lx-paper);
  color: var(--lx-ink);
  font-family: var(--lx-font-body);
  overflow-x: hidden;
}

.page-about .ab-top {
  padding: 16px 0 10px;
}

/* ---------- hero ---------- */
.page-about .ab-hero {
  position: relative;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(39, 227, 194, .16), transparent 62%),
    var(--lx-ink);
  color: var(--lx-white);
  padding: clamp(22px, 4vw, 40px) 0 clamp(34px, 5vw, 68px);
}

.page-about .ab-hero__grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  align-items: end;
}

.page-about .ab-hero__figure {
  margin: 0;
  border-radius: var(--lx-r-lg);
  overflow: hidden;
  background: var(--lx-char);
  border: 1px solid var(--lx-line);
}

.page-about .ab-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 11;
  object-fit: cover;
}

.page-about .ab-hero__cap {
  display: block;
  padding: 10px 16px;
  font-family: var(--lx-font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--lx-moss);
  background: var(--lx-char);
}

.page-about .ab-hero__eyebrow {
  color: var(--lx-cyan);
  margin: 0;
}

.page-about .ab-hero__title {
  font-family: var(--lx-font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 62px);
  line-height: 1.02;
  letter-spacing: -.02em;
  margin: 12px 0 0;
  color: var(--lx-white);
}

.page-about .ab-hero__lede {
  margin: 18px 0 0;
  max-width: 34em;
  color: var(--lx-mist);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
}

.page-about .ab-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0 0;
  background: var(--lx-line);
  border-top: 1px solid var(--lx-line);
  border-bottom: 1px solid var(--lx-line);
}

.page-about .ab-fact {
  background: var(--lx-ink);
  padding: 14px 12px 12px;
}

.page-about .ab-fact dt {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--lx-moss);
}

.page-about .ab-fact dd {
  margin: 8px 0 0;
  font-size: clamp(18px, 2.4vw, 24px);
  color: var(--lx-cyan);
  line-height: 1.1;
}

/* ---------- 章节索引 ---------- */
.page-about .ab-toc {
  background: var(--lx-paper);
  border-bottom: 1px solid var(--ab-rule);
}

.page-about .ab-toc__inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 0 16px;
}

.page-about .ab-toc__label {
  font-family: var(--lx-font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--lx-moss);
}

.page-about .ab-toc__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
}

.page-about .ab-toc__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 14px;
  border-radius: var(--lx-r-pill);
  border: 1px solid var(--ab-rule);
  color: var(--lx-brown);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: background .2s var(--lx-ease), color .2s var(--lx-ease), border-color .2s var(--lx-ease);
}

.page-about .ab-toc__list a .lx-num {
  font-size: 11px;
  color: var(--lx-red);
}

.page-about .ab-toc__list a:hover,
.page-about .ab-toc__list a:focus-visible {
  background: var(--lx-ink);
  border-color: var(--lx-ink);
  color: var(--lx-white);
}

.page-about .ab-toc__list a:hover .lx-num,
.page-about .ab-toc__list a:focus-visible .lx-num {
  color: var(--lx-cyan);
}

/* ---------- 章节骨架 ---------- */
.page-about .ab-sec__grid {
  display: grid;
  gap: 26px;
}

.page-about .ab-sec__rail {
  display: flex;
  flex-direction: column;
  gap: 16px;
  border-top: 1px solid var(--ab-rule);
  padding-top: 14px;
}

.page-about .ab-sec__num {
  font-family: var(--lx-font-display);
  font-weight: 900;
  font-size: clamp(48px, 8vw, 82px);
  line-height: .84;
  letter-spacing: -.04em;
  color: var(--lx-red);
}

.page-about .ab-sec__railtext {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--lx-moss);
}

.page-about .ab-sec__body {
  min-width: 0;
  max-width: 72ch;
}

.page-about .ab-sec__body .lx-h2 {
  font-family: var(--lx-font-display);
  font-weight: 900;
  letter-spacing: -.015em;
  line-height: 1.14;
  margin: 0 0 18px;
}

.page-about .ab-sec__body .lx-prose {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ab-soft);
}

.page-about .ab-sec__more {
  margin: 24px 0 0;
}

.page-about .ab-note {
  border-top: 2px solid var(--lx-ink);
  padding-top: 10px;
}

.page-about .ab-note__k {
  display: block;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--lx-moss);
}

.page-about .ab-note__v {
  display: block;
  margin-top: 6px;
  font-size: clamp(19px, 2.4vw, 25px);
  line-height: 1.1;
  color: var(--lx-ink);
}

/* 深色章节反转 */
.page-about .lx-section--ink .ab-sec__rail,
.page-about .ab-sec--dark .ab-sec__rail {
  border-top-color: var(--ab-rule-dark);
}

.page-about .lx-section--ink .ab-sec__num,
.page-about .ab-sec--dark .ab-sec__num {
  color: var(--lx-cyan);
}

.page-about .lx-section--ink .ab-sec__railtext,
.page-about .ab-sec--dark .ab-sec__railtext {
  color: var(--lx-mist);
}

.page-about .lx-section--ink .ab-sec__body .lx-h2,
.page-about .ab-sec--dark .ab-sec__body .lx-h2 {
  color: var(--lx-white);
}

.page-about .lx-section--ink .ab-sec__body .lx-prose,
.page-about .ab-sec--dark .ab-sec__body .lx-prose {
  color: var(--lx-mist);
}

.page-about .lx-section--ink .ab-note,
.page-about .ab-sec--dark .ab-note {
  border-top-color: var(--lx-amber);
}

.page-about .lx-section--ink .ab-note__k,
.page-about .ab-sec--dark .ab-note__k {
  color: var(--lx-moss);
}

.page-about .lx-section--ink .ab-note__v,
.page-about .ab-sec--dark .ab-note__v {
  color: var(--lx-white);
}

/* ---------- 覆盖范围 ---------- */
.page-about .ab-cov__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 6px 0 22px;
  padding: 0;
  list-style: none;
}

.page-about .ab-chip {
  padding: 7px 14px;
  border-radius: var(--lx-r-pill);
  border: 1px solid var(--lx-line-strong);
  font-size: 13px;
  color: var(--lx-white);
  background: rgba(248, 251, 248, .04);
}

.page-about .ab-cov {
  margin: 24px 0 0;
}

.page-about .ab-cov .lx-index__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--ab-rule-dark);
}

.page-about .ab-cov .lx-index__key {
  font-size: 14px;
  color: var(--lx-mist);
}

.page-about .ab-cov .lx-index__val {
  font-size: 15px;
  color: var(--lx-cyan);
  white-space: nowrap;
}

.page-about .ab-fig {
  margin: 26px 0 0;
  border-radius: var(--lx-r-md);
  overflow: hidden;
  background: var(--lx-char-2);
  border: 1px solid var(--lx-line);
}

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

.page-about .ab-fig__cap {
  display: block;
  padding: 10px 16px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--lx-moss);
  background: rgba(21, 23, 25, .92);
}

/* ---------- 流程 ---------- */
.page-about .ab-flow__svg {
  display: block;
  width: 100%;
  height: auto;
  margin: 22px 0 6px;
  color: var(--lx-ink);
}

.page-about .ab-flow__box {
  fill: var(--lx-white);
  stroke: rgba(42, 29, 24, .16);
  stroke-width: 1;
}

.page-about .ab-flow__num {
  font-family: var(--lx-font-mono);
  font-size: 15px;
  fill: var(--lx-red);
  text-anchor: middle;
}

.page-about .ab-flow__label {
  font-family: var(--lx-font-body);
  font-size: 17px;
  font-weight: 700;
  fill: var(--lx-ink);
  text-anchor: middle;
}

.page-about .ab-flow__line {
  stroke: var(--lx-cyan);
  stroke-width: 2;
}

.page-about .ab-flow-list {
  margin: 20px 0 0;
  border-top: 1px solid var(--ab-rule);
}

.page-about .ab-flow-list__item {
  border-bottom: 1px solid var(--ab-rule);
}

.page-about .ab-flow-list__head {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-about .ab-flow-list__trigger {
  display: flex;
  align-items: baseline;
  gap: 12px;
  width: 100%;
  padding: 16px 0;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  color: var(--lx-brown);
  transition: color .2s var(--lx-ease);
}

.page-about .ab-flow-list__trigger:hover,
.page-about .ab-flow-list__trigger:focus-visible {
  color: var(--lx-red);
}

.page-about .ab-flow-list__idx {
  font-family: var(--lx-font-mono);
  font-size: 13px;
  color: var(--lx-red);
  flex: 0 0 auto;
}

.page-about .ab-flow-list__sign {
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--lx-font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--lx-moss);
}

.page-about .ab-flow-list__sign::before {
  content: "+";
}

.page-about .ab-flow-list__trigger[aria-expanded="true"] .ab-flow-list__sign::before {
  content: "–";
}

.page-about .ab-flow-list__trigger[aria-expanded="true"] {
  color: var(--lx-ink);
}

.page-about .ab-flow-list__panel {
  padding: 0 0 18px 28px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ab-soft);
}

/* ---------- 团队 ---------- */
.page-about .ab-sec--dark .ab-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  margin: 24px 0;
}

.page-about .ab-stat {
  background: var(--lx-char-2);
  border: 1px solid var(--lx-line);
  border-radius: var(--lx-r-md);
  padding: 18px;
}

.page-about .ab-stat__n {
  display: block;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1;
  color: var(--lx-cyan);
}

.page-about .ab-stat__t {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  color: var(--lx-mist);
}

/* ---------- 里程碑时间带 ---------- */
.page-about .ab-tl {
  margin: 30px 0 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .ab-tl__list {
  position: relative;
  display: flex;
  gap: 16px;
  width: max-content;
  margin: 0;
  padding: 0 4px 8px;
  list-style: none;
}

.page-about .ab-tl__list::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 10px;
  height: 2px;
  background: linear-gradient(90deg, var(--lx-cyan), rgba(39, 227, 194, .18));
}

.page-about .ab-tl__item {
  position: relative;
  flex: 0 0 auto;
  width: min(78vw, 280px);
  padding-top: 34px;
  scroll-snap-align: start;
}

.page-about .ab-tl__item::before {
  content: "";
  position: absolute;
  top: 4px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lx-paper);
  border: 3px solid var(--lx-ink);
}

.page-about .ab-tl__year {
  display: block;
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--lx-red);
  line-height: 1.2;
  word-break: break-word;
}

.page-about .ab-tl__item .lx-h3 {
  font-family: var(--lx-font-display);
  font-weight: 900;
  font-size: 19px;
  letter-spacing: -.01em;
  margin: 8px 0 8px;
  color: var(--lx-brown);
}

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

/* ---------- 下一步 ---------- */
.page-about .ab-next {
  background: var(--lx-ink);
  color: var(--lx-white);
}

.page-about .ab-next__title {
  font-family: var(--lx-font-display);
  font-weight: 900;
  letter-spacing: -.015em;
  margin: 0;
  color: var(--lx-white);
}

.page-about .ab-next__lede {
  margin: 14px 0 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--lx-mist);
}

.page-about .ab-next__grid {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.page-about .ab-next__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px;
  border: 1px solid var(--lx-line);
  border-radius: var(--lx-r-md);
  background: rgba(248, 251, 248, .03);
  color: inherit;
  text-decoration: none;
  transition: border-color .2s var(--lx-ease), background .2s var(--lx-ease);
}

.page-about .ab-next__card:hover,
.page-about .ab-next__card:focus-visible {
  border-color: var(--lx-cyan);
  background: rgba(39, 227, 194, .08);
}

.page-about .ab-next__idx {
  font-size: 12px;
  color: var(--lx-cyan);
}

.page-about .ab-next__name {
  font-family: var(--lx-font-display);
  font-weight: 900;
  font-size: 19px;
  color: var(--lx-white);
}

.page-about .ab-next__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--lx-mist);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-about .ab-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .ab-tl__item {
    width: 300px;
  }
}

@media (min-width: 760px) {
  .page-about .ab-toc__inner {
    flex-direction: row;
    align-items: center;
    gap: 20px;
  }

  .page-about .ab-toc__list {
    padding-bottom: 0;
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(230px, 320px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }

  .page-about .ab-hero__figure img {
    aspect-ratio: 5 / 7;
  }

  .page-about .ab-sec__grid {
    grid-template-columns: minmax(160px, 200px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 76px);
  }

  .page-about .ab-sec__body .lx-prose {
    font-size: 17px;
  }

  .page-about .ab-fig {
    margin-top: 30px;
  }
}

@media (min-width: 1020px) {
  .page-about .ab-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-toc__list a,
  .page-about .ab-flow-list__trigger,
  .page-about .ab-next__card {
    transition: none;
  }
}

.page-about {
  --ab-rule: rgba(42, 29, 24, .16);
  --ab-rule-dark: rgba(202, 211, 205, .22);
  --ab-soft: rgba(42, 29, 24, .78);
  background: var(--lx-paper);
  color: var(--lx-ink);
  font-family: var(--lx-font-body);
  overflow-x: hidden;
}

.page-about .ab-top {
  padding: 16px 0 10px;
}

.page-about .ab-hero {
  position: relative;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(39, 227, 194, .16), transparent 62%),
    var(--lx-ink);
  color: var(--lx-white);
  padding: clamp(22px, 4vw, 40px) 0 clamp(34px, 5vw, 68px);
}

.page-about .ab-hero__grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  align-items: end;
}

.page-about .ab-hero__figure {
  margin: 0;
  border-radius: var(--lx-r-lg);
  overflow: hidden;
  background: var(--lx-char);
  border: 1px solid var(--lx-line);
}

.page-about .ab-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 11;
  object-fit: cover;
}

.page-about .ab-hero__cap {
  display: block;
  padding: 10px 16px;
  font-family: var(--lx-font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--lx-moss);
  background: var(--lx-char);
}

.page-about .ab-hero__eyebrow {
  color: var(--lx-cyan);
  margin: 0;
}

.page-about .ab-hero__title {
  font-family: var(--lx-font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 62px);
  line-height: 1.02;
  letter-spacing: -.02em;
  margin: 12px 0 0;
  color: var(--lx-white);
}

.page-about .ab-hero__lede {
  margin: 18px 0 0;
  max-width: 34em;
  color: var(--lx-mist);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
}

.page-about .ab-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0 0;
  background: var(--lx-line);
  border-top: 1px solid var(--lx-line);
  border-bottom: 1px solid var(--lx-line);
}

.page-about .ab-fact {
  background: var(--lx-ink);
  padding: 14px 12px 12px;
}

.page-about .ab-fact dt {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--lx-moss);
}

.page-about .ab-fact dd {
  margin: 8px 0 0;
  font-size: clamp(18px, 2.4vw, 24px);
  color: var(--lx-cyan);
  line-height: 1.1;
}

.page-about .ab-toc {
  background: var(--lx-paper);
  border-bottom: 1px solid var(--ab-rule);
}

.page-about .ab-toc__inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px 0 16px;
}

.page-about .ab-toc__label {
  font-family: var(--lx-font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--lx-moss);
}

.page-about .ab-toc__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
}

.page-about .ab-toc__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 14px;
  border-radius: var(--lx-r-pill);
  border: 1px solid var(--ab-rule);
  color: var(--lx-brown);
  text-decoration: none;
  font-size: 13px;
  white-space: nowrap;
  transition: background .2s var(--lx-ease), color .2s var(--lx-ease), border-color .2s var(--lx-ease);
}

.page-about .ab-toc__list a .lx-num {
  font-size: 11px;
  color: var(--lx-red);
}

.page-about .ab-toc__list a:hover,
.page-about .ab-toc__list a:focus-visible {
  background: var(--lx-ink);
  border-color: var(--lx-ink);
  color: var(--lx-white);
}

.page-about .ab-toc__list a:hover .lx-num,
.page-about .ab-toc__list a:focus-visible .lx-num {
  color: var(--lx-cyan);
}

.page-about .ab-sec__grid {
  display: grid;
  gap: 26px;
}

.page-about .ab-sec__rail {
  display: flex;
  flex-direction: column;
  gap: 16px;
  border-top: 1px solid var(--ab-rule);
  padding-top: 14px;
}

.page-about .ab-sec__num {
  font-family: var(--lx-font-display);
  font-weight: 900;
  font-size: clamp(48px, 8vw, 82px);
  line-height: .84;
  letter-spacing: -.04em;
  color: var(--lx-red);
}

.page-about .ab-sec__railtext {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--lx-moss);
}

.page-about .ab-sec__body {
  min-width: 0;
  max-width: 72ch;
}

.page-about .ab-sec__body .lx-h2 {
  font-family: var(--lx-font-display);
  font-weight: 900;
  letter-spacing: -.015em;
  line-height: 1.14;
  margin: 0 0 18px;
}

.page-about .ab-sec__body .lx-prose {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ab-soft);
}

.page-about .ab-sec__more {
  margin: 24px 0 0;
}

.page-about .ab-note {
  border-top: 2px solid var(--lx-ink);
  padding-top: 10px;
}

.page-about .ab-note__k {
  display: block;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--lx-moss);
}

.page-about .ab-note__v {
  display: block;
  margin-top: 6px;
  font-size: clamp(19px, 2.4vw, 25px);
  line-height: 1.1;
  color: var(--lx-ink);
}

.page-about .lx-section--ink .ab-sec__rail,
.page-about .ab-sec--dark .ab-sec__rail {
  border-top-color: var(--ab-rule-dark);
}

.page-about .lx-section--ink .ab-sec__num,
.page-about .ab-sec--dark .ab-sec__num {
  color: var(--lx-cyan);
}

.page-about .lx-section--ink .ab-sec__railtext,
.page-about .ab-sec--dark .ab-sec__railtext {
  color: var(--lx-mist);
}

.page-about .lx-section--ink .ab-sec__body .lx-h2,
.page-about .ab-sec--dark .ab-sec__body .lx-h2 {
  color: var(--lx-white);
}

.page-about .lx-section--ink .ab-sec__body .lx-prose,
.page-about .ab-sec--dark .ab-sec__body .lx-prose {
  color: var(--lx-mist);
}

.page-about .lx-section--ink .ab-note,
.page-about .ab-sec--dark .ab-note {
  border-top-color: var(--lx-amber);
}

.page-about .lx-section--ink .ab-note__k,
.page-about .ab-sec--dark .ab-note__k {
  color: var(--lx-moss);
}

.page-about .lx-section--ink .ab-note__v,
.page-about .ab-sec--dark .ab-note__v {
  color: var(--lx-white);
}

.page-about .ab-cov__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 6px 0 22px;
  padding: 0;
  list-style: none;
}

.page-about .ab-chip {
  padding: 7px 14px;
  border-radius: var(--lx-r-pill);
  border: 1px solid var(--lx-line-strong);
  font-size: 13px;
  color: var(--lx-white);
  background: rgba(248, 251, 248, .04);
}

.page-about .ab-cov {
  margin: 24px 0 0;
}

.page-about .ab-cov .lx-index__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--ab-rule-dark);
}

.page-about .ab-cov .lx-index__key {
  font-size: 14px;
  color: var(--lx-mist);
}

.page-about .ab-cov .lx-index__val {
  font-size: 15px;
  color: var(--lx-cyan);
  white-space: nowrap;
}

.page-about .ab-fig {
  margin: 26px 0 0;
  border-radius: var(--lx-r-md);
  overflow: hidden;
  background: var(--lx-char-2);
  border: 1px solid var(--lx-line);
}

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

.page-about .ab-fig__cap {
  display: block;
  padding: 10px 16px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--lx-moss);
  background: rgba(21, 23, 25, .92);
}

.page-about .ab-flow__svg {
  display: block;
  width: 100%;
  height: auto;
  margin: 22px 0 6px;
  color: var(--lx-ink);
}

.page-about .ab-flow__box {
  fill: var(--lx-white);
  stroke: rgba(42, 29, 24, .16);
  stroke-width: 1;
}

.page-about .ab-flow__num {
  font-family: var(--lx-font-mono);
  font-size: 15px;
  fill: var(--lx-red);
  text-anchor: middle;
}

.page-about .ab-flow__label {
  font-family: var(--lx-font-body);
  font-size: 17px;
  font-weight: 700;
  fill: var(--lx-ink);
  text-anchor: middle;
}

.page-about .ab-flow__line {
  stroke: var(--lx-cyan);
  stroke-width: 2;
}

.page-about .ab-flow-list {
  margin: 20px 0 0;
  border-top: 1px solid var(--ab-rule);
}

.page-about .ab-flow-list__item {
  border-bottom: 1px solid var(--ab-rule);
}

.page-about .ab-flow-list__head {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-about .ab-flow-list__trigger {
  display: flex;
  align-items: baseline;
  gap: 12px;
  width: 100%;
  padding: 16px 0;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  color: var(--lx-brown);
  transition: color .2s var(--lx-ease);
}

.page-about .ab-flow-list__trigger:hover,
.page-about .ab-flow-list__trigger:focus-visible {
  color: var(--lx-red);
}

.page-about .ab-flow-list__idx {
  font-family: var(--lx-font-mono);
  font-size: 13px;
  color: var(--lx-red);
  flex: 0 0 auto;
}

.page-about .ab-flow-list__sign {
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--lx-font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--lx-moss);
}

.page-about .ab-flow-list__sign::before {
  content: "+";
}

.page-about .ab-flow-list__trigger[aria-expanded="true"] .ab-flow-list__sign::before {
  content: "–";
}

.page-about .ab-flow-list__trigger[aria-expanded="true"] {
  color: var(--lx-ink);
}

.page-about .ab-flow-list__panel {
  padding: 0 0 18px 28px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ab-soft);
}

.page-about .ab-sec--dark .ab-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
  margin: 24px 0;
}

.page-about .ab-stat {
  background: var(--lx-char-2);
  border: 1px solid var(--lx-line);
  border-radius: var(--lx-r-md);
  padding: 18px;
}

.page-about .ab-stat__n {
  display: block;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1;
  color: var(--lx-cyan);
}

.page-about .ab-stat__t {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  color: var(--lx-mist);
}

.page-about .ab-tl {
  margin: 30px 0 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-about .ab-tl__list {
  position: relative;
  display: flex;
  gap: 16px;
  width: max-content;
  margin: 0;
  padding: 0 4px 8px;
  list-style: none;
}

.page-about .ab-tl__list::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 10px;
  height: 2px;
  background: linear-gradient(90deg, var(--lx-cyan), rgba(39, 227, 194, .18));
}

.page-about .ab-tl__item {
  position: relative;
  flex: 0 0 auto;
  width: min(78vw, 280px);
  padding-top: 34px;
  scroll-snap-align: start;
}

.page-about .ab-tl__item::before {
  content: "";
  position: absolute;
  top: 4px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lx-paper);
  border: 3px solid var(--lx-ink);
}

.page-about .ab-tl__year {
  display: block;
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--lx-red);
  line-height: 1.2;
  word-break: break-word;
}

.page-about .ab-tl__item .lx-h3 {
  font-family: var(--lx-font-display);
  font-weight: 900;
  font-size: 19px;
  letter-spacing: -.01em;
  margin: 8px 0 8px;
  color: var(--lx-brown);
}

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

.page-about .ab-next {
  background: var(--lx-ink);
  color: var(--lx-white);
}

.page-about .ab-next__title {
  font-family: var(--lx-font-display);
  font-weight: 900;
  letter-spacing: -.015em;
  margin: 0;
  color: var(--lx-white);
}

.page-about .ab-next__lede {
  margin: 14px 0 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--lx-mist);
}

.page-about .ab-next__grid {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.page-about .ab-next__card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px;
  border: 1px solid var(--lx-line);
  border-radius: var(--lx-r-md);
  background: rgba(248, 251, 248, .03);
  color: inherit;
  text-decoration: none;
  transition: border-color .2s var(--lx-ease), background .2s var(--lx-ease);
}

.page-about .ab-next__card:hover,
.page-about .ab-next__card:focus-visible {
  border-color: var(--lx-cyan);
  background: rgba(39, 227, 194, .08);
}

.page-about .ab-next__idx {
  font-size: 12px;
  color: var(--lx-cyan);
}

.page-about .ab-next__name {
  font-family: var(--lx-font-display);
  font-weight: 900;
  font-size: 19px;
  color: var(--lx-white);
}

.page-about .ab-next__desc {
  font-size: 13px;
  line-height: 1.7;
  color: var(--lx-mist);
}

@media (min-width: 640px) {
  .page-about .ab-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .ab-tl__item {
    width: 300px;
  }
}

@media (min-width: 760px) {
  .page-about .ab-toc__inner {
    flex-direction: row;
    align-items: center;
    gap: 20px;
  }

  .page-about .ab-toc__list {
    padding-bottom: 0;
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(230px, 320px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }

  .page-about .ab-hero__figure img {
    aspect-ratio: 5 / 7;
  }

  .page-about .ab-sec__grid {
    grid-template-columns: minmax(160px, 200px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 76px);
  }

  .page-about .ab-sec__body .lx-prose {
    font-size: 17px;
  }

  .page-about .ab-fig {
    margin-top: 30px;
  }
}

@media (min-width: 1020px) {
  .page-about .ab-next__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-toc__list a,
  .page-about .ab-flow-list__trigger,
  .page-about .ab-next__card {
    transition: none;
  }
}