.page-about {
  --ab-brand: #C6FF3F;
  --ab-violet: #B026FF;
  --ab-cyan: #00D4FF;
  --ab-signal: #FF3D81;
  --ab-space: #0A1128;
  --ab-void: #050814;
  --ab-cloud: #F4F7FF;
  --ab-mist: #8A94A6;
  --ab-border: rgba(10, 17, 40, .14);
  --ab-dark-border: rgba(244, 247, 255, .14);
  --ab-font-display: 'Rajdhani', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --ab-font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --ab-font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
  background: var(--ab-space);
  color: var(--ab-cloud);
  overflow-x: hidden;
}

.page-about .ab-breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 0;
  font-family: var(--ab-font-mono);
  font-size: 12px;
  color: var(--ab-mist);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: .04em;
}

.page-about .ab-breadcrumb a {
  color: var(--ab-brand);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}

.page-about .ab-breadcrumb a:hover,
.page-about .ab-breadcrumb a:focus-visible {
  border-bottom-color: var(--ab-brand);
  color: var(--ab-cloud);
}

.page-about .ab-breadcrumb-tag {
  margin-left: 4px;
  background: var(--ab-brand);
  color: var(--ab-void);
  font-family: var(--ab-font-mono);
  font-size: 10px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 2px;
  letter-spacing: .06em;
}

.page-about .ab-masthead {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 20px 56px;
  position: relative;
}

.page-about .ab-masthead::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 20px;
  width: 88px;
  height: 4px;
  background: var(--ab-brand);
  transform: skewX(-32deg);
}

.page-about .ab-masthead-title {
  font-family: var(--ab-font-display);
  font-weight: 700;
  font-size: clamp(36px, 6vw, 68px);
  line-height: 1.04;
  letter-spacing: .02em;
  margin: 16px 0 18px;
  color: var(--ab-cloud);
  max-width: 880px;
  transform: skewX(-3deg);
}

.page-about .ab-masthead-subtitle {
  font-family: var(--ab-font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ab-mist);
  max-width: 620px;
  margin: 0;
  padding-left: 18px;
  border-left: 3px solid var(--ab-violet);
}

.page-about .ab-masthead-slogan {
  font-family: var(--ab-font-display);
  font-size: 14px;
  letter-spacing: .2em;
  color: var(--ab-brand);
  margin-top: 28px;
  text-transform: uppercase;
}

.page-about .ab-masthead-signal {
  position: absolute;
  top: 90px;
  right: 24px;
  width: 120px;
  height: 120px;
  border: 1px solid var(--ab-dark-border);
  border-radius: 50%;
  opacity: .5;
}

.page-about .ab-masthead-signal::before {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 16px;
  height: 16px;
  background: var(--ab-brand);
  border-radius: 50%;
  box-shadow: 0 0 26px 0 var(--ab-brand);
}

.page-about .ab-masthead-signal::after {
  content: "V4";
  position: absolute;
  bottom: 28px;
  right: -4px;
  font-family: var(--ab-font-mono);
  font-size: 12px;
  color: var(--ab-cyan);
  letter-spacing: .12em;
}

.page-about .ab-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 20px;
  display: block;
}

.page-about .ab-index {
  display: none;
}

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

.page-about .ab-section {
  padding: 56px 0;
  border-bottom: 1px solid var(--ab-dark-border);
  position: relative;
}

.page-about .ab-section--alt {
  background: var(--ab-cloud);
  color: var(--ab-space);
  border-bottom: none;
}

.page-about .ab-section--alt .ab-sec-title,
.page-about .ab-section--alt .lede,
.page-about .ab-section--alt .body-copy {
  color: var(--ab-space);
}

.page-about .ab-section--alt .coord-index {
  color: var(--ab-violet);
}

.page-about .ab-section--alt .ab-panel--data {
  background: var(--ab-space);
  color: var(--ab-cloud);
}

.page-about .ab-section--alt .ab-panel--data .body-copy {
  color: var(--ab-cloud);
}

.page-about .ab-section--alt .ab-panel--data .mono-label {
  color: var(--ab-brand);
}

.page-about .ab-sec-title {
  font-family: var(--ab-font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.1;
  margin: 12px 0 14px;
  color: var(--ab-cloud);
  position: relative;
  display: inline-block;
  padding-right: 16px;
}

.page-about .ab-sec-title::after {
  content: "";
  position: absolute;
  right: 0;
  top: 6px;
  width: 4px;
  height: 26px;
  background: var(--ab-brand);
  transform: skewX(-20deg);
}

.page-about .coord-index {
  font-family: var(--ab-font-mono);
  font-size: 12px;
  color: var(--ab-brand);
  letter-spacing: .14em;
}

.page-about .lede {
  font-size: 19px;
  line-height: 1.65;
  color: var(--ab-cloud);
  margin: 8px 0 20px;
  max-width: 720px;
}

.page-about .body-copy {
  font-family: var(--ab-font-body);
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 247, 255, .78);
  margin: 0 0 16px;
}

.page-about .ab-highlight-line {
  color: var(--ab-brand);
  font-weight: 500;
  border-left: 3px solid var(--ab-violet);
  padding-left: 14px;
}

.page-about .ab-panel {
  background: var(--ab-void);
  border: 1px solid var(--ab-dark-border);
  padding: 24px;
  margin: 18px 0 0;
}

.page-about .ab-panel--cut {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
  background: linear-gradient(135deg, rgba(176, 38, 255, .1) 0%, rgba(10, 17, 40, .6) 45%, rgba(198, 255, 63, .08) 100%);
}

.page-about .ab-panel--data {
  background: var(--ab-void);
  border-left: 4px solid var(--ab-violet);
  margin: 26px 0;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-about .ab-panel--data .mono-label {
  color: var(--ab-brand);
  font-size: 12px;
}

.page-about .ab-path-list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
}

.page-about .ab-path-list li {
  font-family: var(--ab-font-mono);
  font-size: 14px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--ab-dark-border);
  display: flex;
  gap: 12px;
  align-items: baseline;
}

.page-about .ab-path-list li span {
  color: var(--ab-cyan);
  font-size: 11px;
  letter-spacing: .08em;
  min-width: 58px;
}

.page-about .ab-path-result {
  font-family: var(--ab-font-mono);
  font-size: 13px;
  color: var(--ab-brand);
  margin-top: 14px;
  letter-spacing: .1em;
}

.page-about .ab-section--timeline {}

.page-about .ab-timeline-wrap {
  margin: 30px 0 8px;
  overflow: hidden;
}

.page-about .ab-timeline-svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 180px;
}

.page-about .ab-timeline-path {
  stroke: var(--ab-cyan);
  stroke-width: 2;
  stroke-dasharray: 6 6;
  fill: none;
}

.page-about .ab-timeline-dot {
  fill: var(--ab-brand);
  stroke: var(--ab-space);
  stroke-width: 3;
}

.page-about .ab-timeline-dot:hover {
  fill: var(--ab-violet);
}

.page-about .ab-version-list {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 0;
}

.page-about .ab-version-item {
  border-left: 3px solid var(--ab-brand);
  padding: 0 0 0 18px;
}

.page-about .ab-version-item dt {
  font-family: var(--ab-font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--ab-cloud);
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-about .ab-version-item dt span {
  font-family: var(--ab-font-mono);
  font-size: 12px;
  color: var(--ab-violet);
  letter-spacing: .1em;
  background: rgba(176, 38, 255, .1);
  padding: 4px 8px;
}

.page-about .ab-version-item dd {
  margin: 6px 0 0;
  font-family: var(--ab-font-body);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 247, 255, .7);
}

.page-about .ab-figure {
  margin: 28px 0 0;
}

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

.page-about .ab-figure figcaption {
  font-family: var(--ab-font-mono);
  font-size: 12px;
  color: var(--ab-mist);
  margin-top: 10px;
  letter-spacing: .04em;
  border-left: 2px solid var(--ab-cyan);
  padding-left: 10px;
}

.page-about .ab-section--team {
  background: var(--ab-void);
}

.page-about .ab-team-card {
  background: rgba(244, 247, 255, .04);
  border: 1px solid var(--ab-dark-border);
  padding: 22px 20px;
  margin: 0 0 16px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.page-about .ab-team-card .badge,
.page-about .ab-team-card .badge--green {
  display: inline-block;
  font-family: var(--ab-font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  padding: 6px 10px;
  border-radius: 2px;
}

.page-about .ab-team-card p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 247, 255, .72);
  margin: 12px 0 0;
}

.page-about .ab-section--team .ab-figure--team {
  margin-top: 22px;
}

.page-about .ab-section--team .coord-index {
  color: var(--ab-brand);
  margin-top: 20px;
}

.page-about .ab-data-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 28px 0 22px;
}

.page-about .ab-data-cell {
  background: var(--ab-void);
  border: 1px solid var(--ab-border);
  padding: 26px 18px;
  text-align: center;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-about .ab-data-cell .stat {
  font-family: var(--ab-font-display);
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 700;
  color: var(--ab-brand);
  display: block;
  line-height: 1;
}

.page-about .ab-data-label {
  font-family: var(--ab-font-mono);
  font-size: 12px;
  color: var(--ab-space);
  letter-spacing: .12em;
  margin-top: 8px;
  display: block;
  color: rgba(10, 17, 40, .7);
}

.page-about .ab-reach-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 12px 0 24px;
}

.page-about .ab-reach-line span {
  font-family: var(--ab-font-mono);
  font-size: 12px;
  color: var(--ab-violet);
  border: 1px solid var(--ab-violet);
  padding: 6px 10px;
  border-radius: 2px;
  letter-spacing: .06em;
}

.page-about .ab-comp-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin: 26px 0;
}

.page-about .ab-comp-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 20px 18px;
  background: rgba(244, 247, 255, .03);
  border: 1px solid var(--ab-dark-border);
}

.page-about .ab-comp-item h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 4px;
  color: var(--ab-cloud);
  font-family: var(--ab-font-body);
}

.page-about .ab-comp-item p {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(244, 247, 255, .68);
  margin: 0;
}

.page-about .ab-comp-item .alert-dot {
  background: var(--ab-signal);
  width: 10px;
  height: 10px;
  margin-top: 4px;
  border-radius: 50%;
}

.page-about .ab-comp-item .badge,
.page-about .ab-comp-item .badge--green {
  font-family: var(--ab-font-mono);
  font-size: 11px;
  padding: 6px 8px;
}

.page-about .ab-comp-note {
  border-left: 4px solid var(--ab-cyan);
  padding: 8px 0 8px 18px;
  margin-top: 18px;
}

.page-about .ab-comp-note .body-copy {
  color: rgba(244, 247, 255, .72);
}

.page-about .ab-outro {
  padding: 64px 0 72px;
  text-align: left;
}

.page-about .ab-outro .kicker {
  color: var(--ab-brand);
  font-size: 14px;
  letter-spacing: .18em;
}

.page-about .ab-outro-copy {
  font-size: 17px;
  line-height: 1.75;
  color: rgba(244, 247, 255, .78);
  max-width: 680px;
  margin: 12px 0 24px;
}

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

.page-about .btn {
  display: inline-block;
  font-family: var(--ab-font-body);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  padding: 12px 20px;
  border-radius: 2px;
  border: 1px solid var(--ab-brand);
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}

.page-about .btn--primary {
  background: var(--ab-brand);
  color: var(--ab-void);
}

.page-about .btn--primary:hover,
.page-about .btn--primary:focus-visible {
  background: var(--ab-violet);
  border-color: var(--ab-violet);
  color: var(--ab-cloud);
}

.page-about .btn--ghost {
  background: transparent;
  color: var(--ab-cloud);
  border-color: rgba(244, 247, 255, .4);
}

.page-about .btn--ghost:hover,
.page-about .btn--ghost:focus-visible {
  border-color: var(--ab-violet);
  color: var(--ab-violet);
}

.page-about .badge {
  display: inline-block;
  font-family: var(--ab-font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--ab-cloud);
  border: 1px solid var(--ab-dark-border);
  padding: 6px 10px;
  border-radius: 2px;
}

.page-about .badge--green {
  background: var(--ab-brand);
  color: var(--ab-void);
  font-family: var(--ab-font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  padding: 6px 10px;
  border-radius: 2px;
}

.page-about .badge--pulse {
  border: 1px solid var(--ab-violet);
  color: var(--ab-violet);
}

.page-about .badge--pulse::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--ab-violet);
  border-radius: 50%;
  margin-right: 6px;
}

.page-about .split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 12px;
}

.page-about .grid--2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-about .mono-label {
  font-family: var(--ab-font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ab-brand);
}

.page-about .kicker {
  font-family: var(--ab-font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--ab-violet);
}

.page-about .stat {
  color: var(--ab-brand);
}

@media (min-width: 680px) {
  .page-about .ab-version-list {
    grid-template-columns: 1fr 1fr;
    gap: 22px;
  }

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

  .page-about .ab-comp-list {
    grid-template-columns: 1fr 1fr;
  }

  .page-about .ab-comp-item:first-child {
    grid-column: 1 / -1;
  }

  .page-about .ab-figure img {
    max-height: 620px;
  }

  .page-about .ab-section--timeline .ab-figure img {
    object-fit: contain;
    background: rgba(244, 247, 255, .04);
  }
}

@media (min-width: 960px) {
  .page-about .ab-breadcrumb {
    padding-left: 0;
    padding-right: 0;
  }

  .page-about .ab-masthead {
    padding-left: 0;
    padding-right: 0;
  }

  .page-about .ab-masthead::before {
    left: 0;
  }

  .page-about .ab-shell {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 40px;
    padding-left: 0;
    padding-right: 0;
  }

  .page-about .ab-index {
    display: block;
    position: sticky;
    top: 24px;
    align-self: start;
    border-right: 1px solid var(--ab-dark-border);
    padding: 8px 18px 8px 0;
  }

  .page-about .ab-index-caption {
    font-family: var(--ab-font-mono);
    font-size: 11px;
    color: var(--ab-mist);
    letter-spacing: .16em;
    margin: 0 0 18px;
  }

  .page-about .ab-index-list {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .page-about .ab-index-list li {
    margin-bottom: 4px;
  }

  .page-about .ab-index-list a {
    display: block;
    font-family: var(--ab-font-mono);
    font-size: 12px;
    line-height: 1.5;
    color: rgba(244, 247, 255, .5);
    text-decoration: none;
    padding: 8px 10px;
    border-left: 2px solid transparent;
    transition: color .2s ease, border-left-color .2s ease, background-color .2s ease;
  }

  .page-about .ab-index-list a:hover,
  .page-about .ab-index-list a:focus-visible {
    color: var(--ab-brand);
    border-left-color: var(--ab-brand);
    background: rgba(198, 255, 63, .05);
  }

  .page-about .ab-index-note {
    font-family: var(--ab-font-mono);
    font-size: 11px;
    color: var(--ab-mist);
    letter-spacing: .12em;
    margin: 28px 0 6px;
    padding-top: 16px;
    border-top: 1px solid var(--ab-dark-border);
  }

  .page-about .ab-index-version {
    font-family: var(--ab-font-display);
    font-size: 18px;
    color: var(--ab-violet);
    font-weight: 600;
  }

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

  .page-about .ab-section {
    padding: 72px 0;
  }

  .page-about .split {
    grid-template-columns: 1.2fr .8fr;
    gap: 36px;
    align-items: start;
  }

  .page-about .ab-panel--cut {
    margin-top: 2px;
  }

  .page-about .ab-timeline-wrap {
    margin: 40px 0 12px;
  }

  .page-about .ab-timeline-svg {
    max-height: 220px;
  }

  .page-about .ab-version-list {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .page-about .ab-version-item {
    border-left: 3px solid var(--ab-brand);
    padding-left: 16px;
  }

  .page-about .ab-grid--team {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .page-about .ab-team-card {
    margin-bottom: 0;
  }

  .page-about .ab-figure--team img {
    max-height: 520px;
    object-fit: cover;
  }

  .page-about .ab-outro {
    padding: 68px 0 80px;
  }
}

@media (max-width: 360px) {
  .page-about .ab-masthead-slogan {
    letter-spacing: .08em;
  }

  .page-about .ab-data-grid {
    grid-template-columns: 1fr;
  }
}