.page-about {
  --about-green: #00FF88;
  --about-blue: #00D4FF;
  --about-red: #FF2A4B;
  --about-orange: #FF7A00;
  --about-cream: #F5F0E1;
  --about-deep: #0B0E14;
  --about-elev: #121826;
  --about-elev-2: #1A2230;
  --about-gray: #A8B2C3;
  --about-white: #FFFFFF;
  --about-radius-lg: 28px;
  --about-radius-md: 18px;
  --about-radius-pill: 999px;
  --about-container: 1200px;
  --about-page-gutter: 24px;
  --about-font-head: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --about-font-body: "Roboto", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --about-shadow-card: 0 18px 48px rgba(0, 0, 0, 0.32);

  position: relative;
  background: var(--about-deep);
  color: var(--about-white);
  overflow-x: hidden;
  font-family: var(--about-font-body);
  line-height: 1.7;
}

.page-about *,
.page-about *::before,
.page-about *::after {
  box-sizing: border-box;
}

.page-about a {
  color: var(--about-blue);
  text-decoration: none;
}

.page-about .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 36px;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--about-gray);
  overflow-x: auto;
  white-space: nowrap;
}

.page-about .breadcrumbs a {
  color: var(--about-blue);
}

.page-about .breadcrumbs span[aria-hidden="true"] {
  color: #39465B;
}

.about-strip {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--about-green) 0%, var(--about-blue) 50%, var(--about-red) 100%);
  z-index: 2;
}

.about-hero {
  position: relative;
  padding: 48px var(--about-page-gutter) 72px;
  overflow: hidden;
}

.about-hero::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.10) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.about-hero::after {
  content: "";
  position: absolute;
  top: 12%;
  right: 22%;
  width: 240px;
  height: 240px;
  border: 1px solid rgba(0, 212, 255, 0.08);
  transform: rotate(12deg);
  border-radius: 30px;
  pointer-events: none;
}

.about-hero-inner {
  position: relative;
  max-width: var(--about-container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

.about-hero-copy {
  max-width: 720px;
}

.about-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--about-green);
  border: 1px solid rgba(0, 255, 136, 0.3);
  border-radius: var(--about-radius-pill);
  padding: 6px 14px;
  margin: 0 0 20px;
  text-transform: uppercase;
}

.page-about h1 {
  font-family: var(--about-font-head);
  font-weight: 900;
  font-style: italic;
  font-size: clamp(32px, 7vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--about-white);
  margin: 0 0 24px;
  max-width: 680px;
}

.about-lede {
  font-size: 16px;
  line-height: 1.8;
  color: #C7CFDB;
  max-width: 620px;
  margin: 0 0 32px;
}

.about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.about-hero-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--about-radius-pill);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.about-hero-actions .btn-primary {
  background: var(--about-green);
  color: #07100B;
}

.about-hero-actions .btn-ghost {
  background: transparent;
  border: 1.5px solid rgba(0, 212, 255, 0.7);
  color: var(--about-blue);
}

.about-hero-actions .btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 255, 136, 0.18);
}

.about-hero-side {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.about-hero-stat {
  background: linear-gradient(145deg, rgba(18, 24, 38, 0.9) 0%, rgba(15, 20, 32, 0.95) 100%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--about-radius-md);
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
  overflow: hidden;
}

.about-hero-stat::after {
  content: "";
  position: absolute;
  right: -12px;
  bottom: -12px;
  width: 60px;
  height: 60px;
  background: radial-gradient(circle, rgba(0, 255, 136, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.stat-num {
  font-family: var(--about-font-head);
  font-weight: 900;
  font-size: 24px;
  line-height: 1.2;
  color: var(--about-green);
  letter-spacing: -0.01em;
}

.stat-label {
  font-size: 12px;
  color: var(--about-gray);
  letter-spacing: 0.04em;
}

.section-space {
  padding: 72px var(--about-page-gutter);
  position: relative;
}

.section-space:nth-of-type(2) {
  padding-top: 40px;
}

.about-section-head {
  max-width: var(--about-container);
  margin: 0 auto 40px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.about-section-head-reverse {
  grid-template-columns: 1fr;
}

.about-section-kicker {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--about-orange);
  text-transform: uppercase;
  margin: 0 0 8px;
}

.about-section-head h2 {
  font-family: var(--about-font-head);
  font-weight: 900;
  font-size: clamp(26px, 4.5vw, 44px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--about-white);
}

.about-section-note {
  font-size: 15px;
  color: var(--about-gray);
  max-width: 420px;
  margin: 0;
  line-height: 1.7;
}

.about-milestones {
  background: linear-gradient(180deg, transparent 0%, rgba(18, 24, 38, 0.5) 100%);
}

.about-milestone-grid {
  max-width: var(--about-container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 44px;
}

.about-timeline {
  position: relative;
}

.about-timeline-head {
  margin-bottom: 28px;
}

.about-tl-rule {
  position: relative;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, rgba(0, 255, 136, 0.4) 0%, rgba(0, 212, 255, 0.4) 40%, rgba(255, 255, 255, 0.14) 60%, rgba(255, 42, 75, 0.4) 100%);
  margin-bottom: 14px;
}

.about-tl-mark {
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--about-deep);
  border: 3px solid var(--about-green);
  box-shadow: 0 0 0 4px rgba(0, 255, 136, 0.18);
}

.about-tl-mark:nth-child(2) {
  border-color: var(--about-blue);
  box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.16);
}

.about-tl-mark:nth-child(3) {
  border-color: var(--about-orange);
  box-shadow: 0 0 0 4px rgba(255, 122, 0, 0.16);
}

.about-tl-mark:nth-child(4) {
  border-color: var(--about-red);
  box-shadow: 0 0 0 4px rgba(255, 42, 75, 0.16);
}

.about-tl-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--about-gray);
  letter-spacing: 0.05em;
  font-weight: 600;
}

.about-tl-labels span {
  white-space: nowrap;
}

.about-tl-labels span:first-child {
  transform: translateX(-4px);
}

.about-tl-labels span:last-child {
  transform: translateX(4px);
}

.about-timeline-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  position: relative;
}

.about-timeline-list::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--about-green) 0%, var(--about-blue) 35%, var(--about-orange) 65%, var(--about-red) 100%);
  opacity: 0.35;
  border-radius: 2px;
}

.about-tl-item {
  position: relative;
  padding: 0 0 36px 40px;
}

.about-tl-item:last-child {
  padding-bottom: 0;
}

.about-tl-dot {
  position: absolute;
  left: 4px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--about-deep);
  border: 2px solid var(--about-green);
  z-index: 1;
}

.about-tl-item:nth-child(2) .about-tl-dot {
  border-color: var(--about-blue);
}

.about-tl-item:nth-child(3) .about-tl-dot {
  border-color: var(--about-orange);
}

.about-tl-item:nth-child(4) .about-tl-dot {
  border-color: var(--about-red);
}

.about-tl-content {
  background: rgba(18, 24, 38, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--about-radius-md);
  padding: 18px 20px;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.about-tl-content:hover {
  border-color: rgba(0, 255, 136, 0.35);
  transform: translateX(4px);
}

.about-tl-content h3 {
  font-family: var(--about-font-head);
  font-size: 18px;
  font-weight: 700;
  color: var(--about-white);
  margin: 0 0 8px;
  line-height: 1.4;
}

.about-tl-content p {
  font-size: 14px;
  color: #B9C2D0;
  margin: 0;
  line-height: 1.75;
}

.about-milestone-side {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-img-wide {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--about-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  object-fit: cover;
  aspect-ratio: 8 / 3;
}

.about-side-caption {
  font-size: 12px;
  color: var(--about-gray);
  letter-spacing: 0.04em;
  margin: 0;
  border-left: 3px solid var(--about-green);
  padding-left: 12px;
}

.about-capability {
  background: rgba(11, 14, 20, 0.6);
}

.about-capability-wrap {
  max-width: var(--about-container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.about-capability-chart {
  border-radius: var(--about-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: var(--about-elev);
  position: relative;
}

.about-img-data {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  aspect-ratio: 3 / 2;
}

.about-capability-stats {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.about-cap-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 6px 16px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.about-cap-num {
  font-family: var(--about-font-head);
  font-weight: 900;
  font-size: 22px;
  color: var(--about-green);
  letter-spacing: -0.01em;
  grid-column: 1 / 2;
}

.about-cap-label {
  font-size: 14px;
  color: var(--about-gray);
  grid-column: 2 / 3;
}

.about-cap-bar {
  display: block;
  grid-column: 1 / 3;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--about-green) 0%, var(--about-blue) 100%);
  margin-top: 2px;
}

.about-cap-note {
  font-size: 13px;
  color: #7E89A0;
  border-left: 2px solid var(--about-orange);
  padding-left: 14px;
  margin: 16px 0 0;
  line-height: 1.8;
  font-style: italic;
}

.about-legacy {
  position: relative;
}

.about-legacy::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent 40%, rgba(18, 24, 38, 0.72) 100%);
  pointer-events: none;
  z-index: 0;
}

.about-legacy-grid {
  max-width: var(--about-container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  position: relative;
  z-index: 1;
}

.about-legacy-card {
  background: var(--about-elev);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--about-radius-md);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.about-legacy-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 255, 136, 0.3);
}

.about-legacy-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 255, 136, 0.08);
  margin-bottom: 4px;
}

.about-legacy-card h3 {
  font-family: var(--about-font-head);
  font-size: 18px;
  font-weight: 700;
  margin: 0;
  color: var(--about-white);
}

.about-legacy-card p {
  font-size: 14px;
  color: #B9C2D0;
  margin: 0;
  line-height: 1.7;
}

.about-legacy-card-wide {
  background: linear-gradient(135deg, rgba(0, 255, 136, 0.08) 0%, rgba(18, 24, 38, 0.9) 100%);
  border-color: rgba(0, 255, 136, 0.2);
}

.about-img-cert {
  width: 100%;
  max-width: 300px;
  height: auto;
  display: block;
  margin: 36px auto 0;
  border-radius: var(--about-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.06);
  position: relative;
  z-index: 1;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.about-catalog {
  background: var(--about-cream);
  color: var(--about-brown, #1A1A1A);
  position: relative;
  overflow: hidden;
}

.about-catalog .about-section-kicker {
  color: var(--about-red);
}

.about-catalog .about-section-head h2 {
  color: #1A1A1A;
}

.about-catalog .about-section-note {
  color: #4A5568;
}

.about-catalog-layout {
  max-width: var(--about-container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  position: relative;
  z-index: 1;
}

.about-catalog-copy p {
  font-size: 15px;
  line-height: 1.85;
  color: #2D3748;
  margin: 0 0 20px;
  max-width: 560px;
}

.about-catalog-list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-catalog-list li {
  padding-left: 22px;
  position: relative;
  font-size: 14px;
  color: #2D3748;
  line-height: 1.6;
}

.about-catalog-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border-radius: 3px;
  background: var(--about-green);
  transform: rotate(45deg);
}

.about-catalog-list li:nth-child(2)::before {
  background: var(--about-blue);
}

.about-catalog-list li:nth-child(3)::before {
  background: var(--about-orange);
}

.about-catalog-list li:nth-child(4)::before {
  background: var(--about-red);
}

.about-catalog-copy .btn-primary {
  background: #1A1A1A;
  color: var(--about-cream);
  display: inline-flex;
  padding: 13px 26px;
  border-radius: var(--about-radius-pill);
  font-weight: 700;
  font-size: 14px;
  transition: background 0.25s ease, transform 0.25s ease;
}

.about-catalog-copy .btn-primary:hover {
  background: #000;
  transform: translateY(-2px);
}

.about-catalog-panel {
  background: #FFFFFF;
  border-radius: var(--about-radius-lg);
  padding: 28px 24px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.08);
  position: relative;
}

.about-catalog-panel::before {
  content: "";
  position: absolute;
  top: -10px;
  right: 30px;
  width: 90px;
  height: 20px;
  background: var(--about-red);
  border-radius: 0 0 12px 12px;
  opacity: 0.9;
}

.about-catalog-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.about-catalog-tag-row .tag {
  padding: 6px 14px;
  border-radius: var(--about-radius-pill);
  font-size: 12px;
  font-weight: 700;
  background: rgba(0, 0, 0, 0.05);
  color: #333;
}

.about-catalog-tag-row .tag-live {
  background: var(--about-green);
  color: #07100B;
}

.about-catalog-tag-row .tag-hot {
  background: var(--about-red);
  color: #FFFFFF;
}

.about-catalog-example {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--about-radius-md);
  padding: 6px 16px;
  margin-bottom: 16px;
}

.about-catalog-ex-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0 6px;
  font-size: 13px;
  font-weight: 700;
  color: #8A6D3B;
  letter-spacing: 0.03em;
}

.about-catalog-ex-arrow {
  color: var(--about-red);
  font-size: 16px;
}

.about-catalog-ex-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.about-catalog-ex-round {
  font-size: 12px;
  font-weight: 700;
  color: #1A1A1A;
  background: rgba(0, 0, 0, 0.06);
  padding: 4px 10px;
  border-radius: 8px;
  white-space: nowrap;
}

.about-catalog-ex-title {
  font-size: 13px;
  color: #4A5568;
  text-align: right;
}

.about-catalog-panel-note {
  font-size: 12px;
  color: #718096;
  margin: 0;
  text-align: center;
  letter-spacing: 0.04em;
}

.about-outro {
  background: linear-gradient(135deg, rgba(0, 255, 136, 0.06) 0%, transparent 40%), var(--about-deep);
}

.about-outro-inner {
  max-width: var(--about-container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.about-outro-copy .about-section-kicker {
  color: var(--about-blue);
}

.about-outro-copy h2 {
  font-family: var(--about-font-head);
  font-weight: 900;
  font-size: clamp(26px, 4vw, 38px);
  margin: 0 0 16px;
}

.about-outro-lede {
  font-size: 15px;
  line-height: 1.85;
  color: #C7CFDB;
  margin: 0 0 24px;
  max-width: 560px;
}

.about-outro-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.about-outro-links .btn {
  display: inline-flex;
  padding: 13px 26px;
  border-radius: var(--about-radius-pill);
  font-weight: 700;
  font-size: 14px;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.about-outro-links .btn-ghost {
  border: 1.5px solid rgba(0, 212, 255, 0.5);
  color: var(--about-blue);
}

.about-outro-links .btn-ghost:hover {
  transform: translateY(-2px);
  border-color: var(--about-blue);
}

.about-outro-note {
  border-left: 3px solid var(--about-green);
  padding: 8px 0 8px 18px;
}

.about-outro-note p {
  font-size: 13px;
  color: #7E89A0;
  margin: 0;
  line-height: 1.8;
}

@media (min-width: 640px) {
  .page-about .breadcrumbs {
    margin-bottom: 48px;
  }

  .about-hero {
    padding: 64px var(--about-page-gutter) 88px;
  }

  .about-hero-stat {
    padding: 24px 20px;
  }

  .stat-num {
    font-size: 30px;
  }

  .about-hero-side {
    gap: 16px;
  }

  .about-section-head {
    grid-template-columns: 1fr 1fr;
    align-items: end;
    gap: 32px;
  }

  .about-section-head-reverse {
    grid-template-columns: 1fr 1fr;
  }

  .about-section-note {
    justify-self: end;
    text-align: right;
  }

  .about-timeline-list {
    gap: 6px;
  }

  .about-tl-item {
    padding-left: 48px;
  }

  .about-timeline-list::before {
    left: 11px;
  }

  .about-cap-row {
    grid-template-columns: 140px 1fr;
  }

  .about-cap-num {
    font-size: 26px;
  }

  .about-legacy-grid {
    grid-template-columns: 1fr 1fr;
  }

  .about-legacy-card-wide {
    grid-column: 1 / 3;
  }

  .about-catalog-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-outro-inner {
    grid-template-columns: 2fr 1fr;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .about-hero-inner {
    grid-template-columns: 1.4fr 0.8fr;
    align-items: end;
  }

  .about-milestone-grid {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: start;
  }

  .about-milestone-side {
    margin-top: 40px;
  }

  .about-capability-wrap {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
    gap: 56px;
  }

  .about-catalog-layout {
    grid-template-columns: 1fr 0.85fr;
    align-items: center;
    gap: 56px;
  }

  .about-catalog-copy p {
    font-size: 16px;
  }
}

.page-about {
  --about-brown: currentColor;
}