.page-about {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
}

.page-about .container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 20px;
}

.page-about .section {
  padding-block: 48px 56px;
}

.page-about .page-breadcrumbs {
  padding-block: 16px 0;
}

.page-about .section-eyebrow {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 8px;
}

.page-about .section-title {
  font-family: var(--font-headline);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.12;
  font-size: clamp(1.55rem, 3vw, 2.3rem);
  margin: 0 0 12px;
}

.page-about .section-desc {
  margin: 0;
  max-width: 720px;
  color: var(--color-text-muted);
}

.page-about .tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  padding: 4px 8px;
  border: 1px solid transparent;
  color: var(--color-navy);
}

.page-about .tag--cyan {
  background: rgba(0, 212, 184, .14);
  border-color: rgba(0, 212, 184, .4);
}

.page-about .tag--gold {
  background: rgba(201, 162, 39, .16);
  border-color: rgba(201, 162, 39, .45);
}

.page-about .tag--orange {
  background: rgba(232, 102, 44, .16);
  border-color: rgba(232, 102, 44, .4);
}

.page-about .data-text {
  font-family: var(--font-data);
  font-weight: 500;
}

.page-about .data-text--gold {
  color: var(--color-gold);
}

.page-about .data-text--live {
  color: var(--color-positive);
}

.page-about .platform-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-navy);
  color: var(--color-inverse-text);
  padding: 56px 0 48px;
}

.page-about .platform-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 52%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 212, 184, .36), rgba(122, 90, 248, .28));
  clip-path: polygon(18% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-about .hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-about .hero-kicker {
  font-family: var(--font-headline);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-gold-light);
  margin: 0 0 12px;
}

.page-about .hero-desc {
  margin: 0;
  max-width: 640px;
  color: rgba(249, 250, 251, .82);
}

.page-about .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .platform-hero .btn--ghost {
  border-color: rgba(249, 250, 251, .6);
  color: var(--color-inverse-text);
}

.page-about .platform-hero .btn--ghost:hover {
  background: rgba(249, 250, 251, .12);
}

.page-about .hero-data {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .14);
  padding: 18px;
}

.page-about .hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 0;
}

.page-about .hero-stat dt {
  font-size: .8rem;
  color: rgba(249, 250, 251, .72);
  margin-bottom: 4px;
}

.page-about .hero-stat dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-inverse-text);
}

.page-about .hero-stat dd.data-text--gold {
  color: var(--color-gold-light);
}

.page-about .hero-stat dd.data-text--live {
  color: var(--color-positive);
}

.page-about .v4-layout {
  display: grid;
  gap: 24px;
  margin-top: 28px;
}

.page-about .img-frame {
  display: block;
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: var(--color-bg-alt);
}

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

.page-about .v4-access h3 {
  font-family: var(--font-headline);
  font-size: 1.2rem;
  margin: 0 0 12px;
}

.page-about .v4-list {
  margin: 0 0 16px;
  padding-left: 0;
  list-style: none;
}

.page-about .v4-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
  color: var(--color-text-muted);
}

.page-about .v4-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .6em;
  width: 8px;
  height: 8px;
  background: var(--color-cyan);
  transform: rotate(45deg);
}

.page-about .v4-keywords {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.page-about .v4-keyword-label {
  font-size: .85rem;
  color: var(--color-text-muted);
}

.page-about .v4-note {
  margin: 0;
  font-size: .9rem;
  color: var(--color-text-muted);
}

.page-about .version-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 28px 0 0;
  padding: 20px 0 0;
  list-style: none;
  border-top: 1px solid var(--color-line);
}

.page-about .version-item {
  padding: 14px;
  background: var(--color-bg-alt);
  border-left: 3px solid var(--color-silver);
}

.page-about .version-item.is-current {
  border-left-color: var(--color-gold);
  background: linear-gradient(135deg, rgba(201, 162, 39, .16), rgba(201, 162, 39, .04));
}

.page-about .version-num {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-navy);
}

.page-about .version-item.is-current .version-num {
  color: var(--color-gold);
}

.page-about .version-name {
  display: block;
  font-family: var(--font-headline);
  font-weight: 700;
}

.page-about .version-desc {
  display: block;
  font-size: .85rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.page-about .section--live {
  background: var(--color-bg-alt);
  border-block: 1px solid var(--color-line);
}

.page-about .live-frame {
  margin: 24px 0;
}

.page-about .live-grid {
  display: grid;
  gap: 12px;
  margin-bottom: 20px;
}

.page-about .live-card {
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  padding: 14px;
  transition: border-color .3s var(--ease-out), box-shadow .3s var(--ease-out);
}

.page-about .live-card:hover {
  border-color: var(--color-cyan);
  box-shadow: var(--shadow-sm);
}

.page-about .live-card header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.page-about .live-state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .8rem;
  font-weight: 700;
  color: var(--color-positive);
}

.page-about .live-state::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.page-about .live-match {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 8px;
  align-items: center;
  margin-bottom: 6px;
}

.page-about .live-match .team {
  text-align: center;
  font-weight: 600;
}

.page-about .live-match .team:first-child {
  text-align: right;
}

.page-about .live-match .team:last-child {
  text-align: left;
}

.page-about .score {
  font-family: var(--font-data);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-navy);
  text-align: center;
}

.page-about .tennis-card .score {
  font-size: 1.2rem;
}

.page-about .live-foot {
  margin: 0;
  font-size: .8rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-line);
  padding-top: 8px;
}

.page-about .live-stats {
  margin: 8px 0 0;
  font-size: .82rem;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
  padding: 8px 10px;
  transition: background .3s var(--ease-out), color .3s var(--ease-out);
}

.page-about .live-card:hover .live-stats {
  background: rgba(0, 212, 184, .14);
  color: var(--color-navy);
}

.page-about .live-more {
  margin: 0;
  color: var(--color-text-muted);
}

.page-about .section--insights {
  background: var(--color-navy);
  color: var(--color-inverse-text);
}

.page-about .section--insights .section-title {
  color: var(--color-inverse-text);
}

.page-about .section--insights .section-desc {
  color: rgba(249, 250, 251, .78);
}

.page-about .section--insights .tag {
  color: var(--color-gold-light);
  background: rgba(255, 255, 255, .08);
  border-color: rgba(232, 198, 102, .45);
}

.page-about .section--insights .btn--ghost {
  border-color: rgba(249, 250, 251, .55);
  color: var(--color-inverse-text);
}

.page-about .section--insights .btn--ghost:hover {
  background: rgba(249, 250, 251, .1);
}

.page-about .section-head--split {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
}

.page-about .insight-grid {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.page-about .insight-card {
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .12);
  padding: 18px;
}

.page-about .insight-card h3 {
  font-family: var(--font-headline);
  font-size: 1.1rem;
  margin: 10px 0 8px;
  color: var(--color-inverse-text);
}

.page-about .insight-card p {
  margin: 0 0 14px;
  font-size: .95rem;
  color: rgba(249, 250, 251, .78);
}

.page-about .insight-card .card__action {
  color: var(--color-cyan);
  font-weight: 700;
  text-decoration: underline;
}

.page-about .section--venues {
  background: var(--color-bg);
}

.page-about .venue-grid {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.page-about .venue-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
}

.page-about .venue-card summary {
  display: flex;
  align-items: center;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  padding: 14px;
  font-family: var(--font-headline);
  font-weight: 700;
}

.page-about .venue-card summary::-webkit-details-marker {
  display: none;
}

.page-about .venue-rank {
  font-family: var(--font-data);
  color: var(--color-gold);
}

.page-about .venue-card p {
  margin: 0;
  padding: 0 14px 14px;
  font-size: .9rem;
  color: var(--color-text-muted);
}

.page-about .venue-map {
  margin-top: 20px;
}

.page-about .venue-note {
  margin-top: 16px;
  color: var(--color-text-muted);
}

.page-about .section--capabilities {
  background: var(--color-bg);
}

.page-about .skill-map {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

.page-about .skill-root {
  background: var(--color-navy);
  color: var(--color-inverse-text);
  padding: 16px 18px;
}

.page-about .skill-root .skill-node {
  font-size: 1.1rem;
}

.page-about .skill-node {
  font-family: var(--font-headline);
  font-weight: 700;
}

.page-about .skill-branches {
  display: grid;
  gap: 12px;
}

.page-about .skill-branch {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-gold);
}

.page-about .skill-branch summary {
  display: flex;
  align-items: center;
  gap: 10px;
  list-style: none;
  cursor: pointer;
  padding: 16px 14px;
  font-family: var(--font-headline);
  font-weight: 700;
}

.page-about .skill-branch summary::-webkit-details-marker {
  display: none;
}

.page-about .skill-branch p {
  margin: 0;
  padding: 0 14px 16px;
  font-size: .9rem;
  color: var(--color-text-muted);
}

.page-about .skill-icon {
  width: 22px;
  height: 22px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  color: var(--color-gold);
}

.page-about .support-panel {
  background: var(--color-navy-deep);
  color: var(--color-inverse-text);
  padding-block: 40px;
}

.page-about .support-panel p {
  margin: 0;
  max-width: 760px;
}

.page-about .support-panel a {
  color: var(--color-cyan);
  font-weight: 700;
}

.page-about a:focus-visible,
.page-about summary:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 2px;
}

@media (min-width: 768px) {
  .page-about .container {
    padding-inline: 32px;
  }

  .page-about .section {
    padding-block: 64px 72px;
  }

  .page-about .platform-hero {
    padding: 72px 0 64px;
  }

  .page-about .hero-inner {
    grid-template-columns: 1.1fr .9fr;
    align-items: center;
    gap: 40px;
  }

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

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

@media (min-width: 960px) {
  .page-about .v4-layout {
    grid-template-columns: 1.15fr .85fr;
    align-items: center;
    gap: 40px;
  }

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

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

  .page-about .skill-branches {
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}