.page-about {
  --clip-panel: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  --stat-teal: linear-gradient(135deg, rgba(32, 191, 169, 0.92), rgba(32, 191, 169, 0.45));
  --stat-orange: linear-gradient(135deg, rgba(255, 176, 32, 0.95), rgba(255, 176, 32, 0.45));
  --stat-magenta: linear-gradient(135deg, rgba(232, 72, 127, 0.95), rgba(232, 72, 127, 0.45));
  --stat-yellow: linear-gradient(135deg, rgba(255, 230, 0, 0.9), rgba(255, 176, 32, 0.5));
  --stat-blue: linear-gradient(135deg, rgba(59, 130, 246, 0.92), rgba(59, 130, 246, 0.4));
  background: var(--color-category-bg);
  color: var(--color-body-text);
  min-height: 100vh;
}

.page-about .content-wide {
  padding-block: 1.25rem 4rem;
}

.page-about__hero {
  display: grid;
  gap: 1.5rem;
  padding: 2rem 0 2.5rem;
  border-bottom: 4px solid var(--color-accent-yellow);
  margin-bottom: 3rem;
}

.page-about__hero h1 {
  font-size: clamp(1.55rem, 3.8vw, 2.6rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: 0.02em;
  margin: 0.4rem 0 1rem;
  color: #ffffff;
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.45), 0 0 22px rgba(255, 230, 0, 0.22);
}

.page-about__hero-desc {
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  line-height: 1.75;
  color: #d8e2e0;
  max-width: 840px;
}

.page-about__hero-keywords {
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.page-about__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.page-about__section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-accent-yellow);
}

.page-about__section-head h2 {
  font-size: clamp(1.25rem, 2.5vw, 1.85rem);
  font-weight: 900;
  margin: 0;
  color: #ffffff;
  letter-spacing: 0.04em;
}

.page-about__section-head .eyebrow {
  color: var(--color-secondary-text);
  white-space: nowrap;
}

.page-about__stat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-about__stat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.4rem;
  min-height: 172px;
  padding: 1.5rem;
  clip-path: var(--clip-panel);
  border: 1px solid rgba(255, 255, 255, 0.16);
  transition: filter var(--transition-base), transform var(--transition-base);
}

.page-about__stat-card--teal { background: var(--stat-teal); }
.page-about__stat-card--orange { background: var(--stat-orange); }
.page-about__stat-card--magenta { background: var(--stat-magenta); }
.page-about__stat-card--yellow { background: var(--stat-yellow); }
.page-about__stat-card--blue { background: var(--stat-blue); }

.page-about__stat-card:hover {
  filter: brightness(1.12);
  transform: translateY(-3px);
}

.page-about__stat-num {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1;
  color: #ffffff;
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.35);
  letter-spacing: -0.02em;
}

.page-about__stat-label {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
}

.page-about__stat-note {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.82);
}

.page-about__dimensions {
  margin-top: 4rem;
}

.page-about__dimension-layout {
  display: grid;
  gap: 2rem;
}

.page-about__dimension-figure {
  margin: 0;
}

.page-about__dimension-img,
.page-about__batch-img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.page-about__dimension-figure figcaption,
.page-about__batch-figure figcaption {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--color-secondary-text);
}

.page-about__dimension-desc {
  margin-top: 1rem;
  font-size: 0.95rem;
  line-height: 1.7;
  color: #c6d4cf;
}

.page-about__dimension-desc a,
.page-about__dimension-more a,
.page-about__devices-sync a {
  color: var(--color-accent-yellow);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about__dimension-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-about__dimension-col {
  padding: 1.25rem;
  background: rgba(0, 0, 0, 0.24);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-top-width: 5px;
  border-radius: var(--radius-md);
}

.page-about__dimension-col--orange { border-top-color: var(--color-card-orange); }
.page-about__dimension-col--magenta { border-top-color: var(--color-card-magenta); }
.page-about__dimension-col--teal { border-top-color: var(--color-card-teal); }

.page-about__dimension-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-size: 1.05rem;
  font-weight: 800;
  color: #ffffff;
  margin: 0 0 0.75rem;
}

.page-about__dimension-title span {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--color-accent-yellow);
  background: rgba(0, 0, 0, 0.28);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
}

.page-about__dimension-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about__dimension-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--color-divider);
}

.page-about__dimension-list li:last-child {
  border-bottom: none;
}

.page-about__dimension-list span {
  color: var(--color-body-text);
  font-size: 0.9rem;
}

.page-about__dimension-list strong {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--color-accent-yellow);
  font-weight: 600;
}

.page-about__dimension-more {
  margin: 0.75rem 0 0;
  font-size: 0.82rem;
  color: var(--color-secondary-text);
}

.page-about__tags {
  position: relative;
  margin-top: 4.5rem;
  padding: 3rem 1.25rem;
  background: #15291f;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-about__tags-bg-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.3;
  pointer-events: none;
}

.page-about__tags-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-about__tags-content {
  position: relative;
  z-index: 1;
}

.page-about__tags-intro {
  font-size: 0.95rem;
  color: #c6d4cf;
  max-width: 720px;
  margin: 0 0 1.75rem;
}

.page-about__tag-levels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-about__tag-level {
  padding: 1.1rem;
  background: rgba(6, 18, 12, 0.55);
  border-left: 4px solid var(--color-accent-yellow);
  border-radius: var(--radius-sm);
}

.page-about__tag-level h3 {
  margin: 0 0 0.8rem;
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--color-secondary-text);
}

.page-about__tag-level .tag-group {
  gap: 0.5rem;
  flex-wrap: wrap;
}

.page-about__tag-level .tag {
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: default;
}

.page-about__tag-level .tag:hover {
  transform: translateY(-2px) rotate(-2deg);
  box-shadow: 0 0 0 2px var(--color-accent-yellow);
}

.page-about__batches {
  margin-top: 4.5rem;
}

.page-about__batch-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-about__batch-stepper {
  padding: 2rem 1.5rem;
  background: linear-gradient(135deg, rgba(255, 176, 32, 0.22), rgba(255, 176, 32, 0.02));
  border: 2px solid var(--color-card-orange);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.6rem;
}

.page-about__batch-label {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-secondary-text);
  text-transform: uppercase;
}

.page-about__batch-num {
  font-family: var(--font-mono);
  font-size: clamp(3.2rem, 8vw, 5rem);
  font-weight: 800;
  line-height: 0.95;
  color: var(--color-accent-yellow);
  text-shadow: 3px 3px 0 rgba(0, 0, 0, 0.4);
}

.page-about__batch-unit {
  font-size: 1.1rem;
  font-weight: 800;
  color: #ffffff;
}

.page-about__batch-meta {
  margin: 0.75rem 0 0.5rem;
  display: grid;
  gap: 0.4rem;
  width: 100%;
}

.page-about__batch-meta-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--color-divider);
}

.page-about__batch-meta-row dt {
  color: var(--color-secondary-text);
  font-size: 0.88rem;
}

.page-about__batch-meta-row dd {
  margin: 0;
  color: var(--color-body-text);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

.page-about__batch-figure {
  margin: 0;
  text-align: center;
}

.page-about__batch-img {
  max-height: 520px;
}

.page-about__batch-breakdown {
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
}

.page-about__batch-breakdown h3 {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
  font-weight: 900;
  color: #ffffff;
}

.page-about__batch-total {
  margin: 0 0 1.25rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-accent-yellow);
}

.page-about__batch-sub {
  margin: 1.5rem 0 0.6rem;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--color-secondary-text);
  text-transform: uppercase;
}

.page-about .entry-row {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr) 120px 2.5rem;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0;
}

.page-about .entry-row .progress-bar {
  flex: none;
  max-width: none;
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
  display: block;
}

.page-about .entry-row .progress-bar__fill {
  display: block;
  height: 100%;
  border-radius: 999px;
}

.page-about__count {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-accent-yellow);
  text-align: right;
}

.page-about__specs {
  margin-top: 4.5rem;
}

.page-about__specs-table-wrap {
  overflow-x: auto;
}

.page-about .spec-table {
  width: 100%;
  border-collapse: collapse;
}

.page-about .spec-table th {
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-secondary-text);
  background: rgba(0, 0, 0, 0.28);
}

.page-about .spec-table th,
.page-about .spec-table td {
  padding: 0.9rem 1rem;
  border: 1px solid var(--color-divider);
  text-align: left;
  vertical-align: middle;
  color: var(--color-body-text);
}

.page-about .spec-table td {
  font-size: 0.92rem;
}

.page-about .spec-table tbody tr {
  transition: background var(--transition-fast);
}

.page-about .spec-table tbody tr:hover {
  background: rgba(255, 230, 0, 0.08);
}

.page-about__specs-tip {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--color-secondary-text);
}

.page-about__devices {
  margin-top: 4.5rem;
}

.page-about__device-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.page-about__device-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.24);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.page-about__device-card:hover {
  transform: translateY(-3px);
}

.page-about__device-card--android { border-top: 6px solid var(--color-card-orange); }
.page-about__device-card--ios { border-top: 6px solid var(--color-card-magenta); }
.page-about__device-card--web { border-top: 6px solid var(--color-card-teal); }

.page-about__device-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.page-about__device-name {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 900;
  color: #ffffff;
}

.page-about__device-ver {
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--color-accent-yellow);
  background: rgba(0, 0, 0, 0.3);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
}

.page-about__device-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
  flex: 1;
}

.page-about__device-list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.9rem;
  color: var(--color-body-text);
}

.page-about__device-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--color-accent-yellow);
  transform: rotate(45deg);
}

.page-about__devices-sync {
  margin-top: 1.5rem;
  font-size: 0.92rem;
  color: var(--color-secondary-text);
  line-height: 1.7;
}

@media (min-width: 640px) {
  .page-about__stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about__stat-card {
    min-height: 160px;
  }

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

  .page-about__tag-level:first-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 820px) {
  .page-about__hero {
    grid-template-columns: 1fr auto;
    align-items: end;
  }

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

  .page-about__dimension-layout {
    grid-template-columns: minmax(0, 1fr) 340px;
    align-items: start;
  }

  .page-about__dimension-cols {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .page-about__batch-layout {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-about__batch-breakdown {
    grid-column: 1 / -1;
  }

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

@media (min-width: 1180px) {
  .page-about__stat-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .page-about__batch-layout {
    grid-template-columns: minmax(260px, 0.85fr) 360px minmax(0, 1.3fr);
  }

  .page-about__batch-breakdown {
    grid-column: auto;
  }

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

  .page-about__tag-level:first-child {
    grid-column: auto;
  }
}