.page-about {
  --about-grid-line: rgba(100, 255, 218, 0.07);
  --about-gold-faint: rgba(255, 215, 0, 0.25);
  --about-green-shadow: rgba(0, 255, 135, 0.12);
  --about-cyan-line: rgba(100, 255, 218, 0.2);
}

.page-about .about-hero {
  position: relative;
  padding: 32px 0 60px;
  overflow: hidden;
}
.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: linear-gradient(to left, black, transparent 70%);
  mask-image: linear-gradient(to left, black, transparent 70%);
  pointer-events: none;
}
.page-about .about-hero-grid {
  display: grid;
  gap: 36px;
  position: relative;
  z-index: 1;
}
.page-about .about-hero-index {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--text-body);
  text-transform: uppercase;
}
.page-about .about-hero-index-text {
  letter-spacing: 0.3em;
  font-size: 11px;
  color: var(--accent-cyan);
}
.page-about .about-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(1.9rem, 5vw, 3.6rem);
  line-height: 1.14;
  color: var(--text-primary);
  margin: 16px 0 20px;
  max-width: 660px;
  letter-spacing: 0.01em;
}
.page-about .about-hero-lead {
  color: var(--text-body);
  font-size: 1rem;
  line-height: 1.72;
  max-width: 560px;
  margin: 0 0 28px;
}
.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}
.page-about .about-hero-visual {
  position: relative;
  min-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.page-about .hero-board {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 360px;
  background: var(--bg-panel);
  border: 1px solid var(--bg-card);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-panel);
  transform: rotate(-2deg);
  transition: transform var(--transition);
}
.page-about .hero-board:hover {
  transform: rotate(0deg) scale(1.01);
}
.page-about .hero-board::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 72px;
  height: 4px;
  background: var(--accent);
  border-radius: 4px 0 0 0;
  z-index: 3;
}
.page-about .hero-board-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--about-cyan-line);
  margin-bottom: 18px;
}
.page-about .hero-board-code {
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--text-body);
  letter-spacing: 0.08em;
}
.page-about .hero-board-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 16px;
}
.page-about .hero-board-team {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-body);
  text-transform: uppercase;
}
.page-about .hero-board-score {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--text-primary);
  letter-spacing: 0.04em;
}
.page-about .hero-board-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  margin-bottom: 14px;
}
.page-about .hero-board-foot {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-body);
}
.page-about .hero-board-foot span:last-child {
  color: var(--accent);
  font-family: var(--font-data);
}
.page-about .hero-board-slash {
  position: absolute;
  z-index: 1;
  width: 110px;
  height: 4px;
  background: var(--accent);
  opacity: 0.6;
  border-radius: 4px;
  top: 16px;
  right: -10px;
  transform: rotate(-32deg);
}
.page-about .hero-board-grid {
  position: absolute;
  z-index: 1;
  right: -6px;
  top: 42%;
  width: 120px;
  height: 90px;
  border: 1px solid var(--about-grid-line);
  border-radius: var(--radius-sm);
  background-image:
    linear-gradient(var(--about-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--about-grid-line) 1px, transparent 1px);
  background-size: 20px 20px;
}

.page-about .about-origin {
  padding: 48px 0 8px;
}
.page-about .about-origin-panel {
  padding: 28px 24px;
  position: relative;
  border-radius: var(--radius-md);
}
.page-about .about-origin-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent) 0%, transparent 40%);
}
.page-about .about-origin-lead {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.7;
  margin-bottom: 14px;
}
.page-about .about-origin-panel > p:not(.about-origin-lead) {
  color: var(--text-body);
  line-height: 1.75;
  margin-bottom: 12px;
}
.page-about .about-origin-quote {
  margin: 18px 0;
  padding: 16px 18px;
  border-left: 3px solid var(--accent-gold);
  background: rgba(255, 215, 0, 0.04);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.page-about .about-origin-quote p {
  color: var(--text-primary);
  font-size: 0.98rem;
  margin: 0;
  line-height: 1.7;
}

.page-about .about-milestones {
  padding: 48px 0;
}
.page-about .about-milestone-layout {
  display: grid;
  gap: 32px;
}
.page-about .about-milestone-list {
  position: relative;
}
.page-about .about-milestone-item {
  position: relative;
  padding-left: 28px;
  padding-bottom: 26px;
}
.page-about .about-milestone-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--about-green-shadow);
}
.page-about .about-milestone-item::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 26px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), rgba(100, 255, 218, 0.15));
}
.page-about .about-milestone-item:last-child::after {
  display: none;
}
.page-about .about-milestone-year {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
  background: rgba(0, 255, 135, 0.08);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
}
.page-about .about-milestone-card {
  padding: 18px 18px 16px;
}
.page-about .about-milestone-card h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.page-about .about-milestone-card p {
  color: var(--text-body);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
}
.page-about .about-milestone-visual {
  position: relative;
}
.page-about .about-milestone-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  display: block;
  object-fit: cover;
}
.page-about .about-milestone-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--text-body);
  font-family: var(--font-data);
  letter-spacing: 0.02em;
  line-height: 1.5;
  padding-left: 2px;
}

.page-about .about-evolution {
  padding: 16px 0 48px;
}
.page-about .about-evolution-panel {
  padding: 24px;
  display: grid;
  gap: 20px;
  border-radius: var(--radius-md);
}
.page-about .about-evolution-copy p {
  color: var(--text-body);
  line-height: 1.75;
  font-size: 0.95rem;
  margin-bottom: 12px;
}
.page-about .about-evolution-copy p:last-child {
  margin-bottom: 0;
}
.page-about .about-evolution-visual {
  position: relative;
}
.page-about .about-evolution-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  display: block;
}
.page-about .about-evolution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-about .about-data {
  padding: 48px 0;
}
.page-about .about-data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.page-about .about-data-item {
  padding: 20px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  border-radius: var(--radius-md);
}
.page-about .about-data-num {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  line-height: 1.2;
}
.page-about .about-data-label {
  font-size: 13px;
  color: var(--text-body);
  margin-top: 6px;
  letter-spacing: 0.06em;
}
.page-about .about-data-note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-body);
  text-align: center;
  line-height: 1.6;
  padding: 12px 16px;
  background: rgba(100, 255, 218, 0.05);
  border-radius: var(--radius-sm);
}

.page-about .about-values {
  padding: 48px 0;
}
.page-about .about-value-grid {
  display: grid;
  gap: 16px;
}
.page-about .about-value-item {
  padding: 24px 20px;
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
}
.page-about .about-value-num {
  font-family: var(--font-data);
  font-size: 2.4rem;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px var(--about-gold-faint);
  position: absolute;
  top: 16px;
  right: 16px;
  line-height: 1;
  pointer-events: none;
}
.page-about .about-value-item h3 {
  font-family: var(--font-head);
  font-size: 1.15rem;
  color: var(--text-primary);
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}
.page-about .about-value-item p {
  color: var(--text-body);
  font-size: 0.92rem;
  line-height: 1.7;
  margin: 0;
  position: relative;
  z-index: 1;
}
.page-about .about-values-visual {
  margin-top: 22px;
  position: relative;
}
.page-about .about-values-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  display: block;
}
.page-about .about-values-caption {
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-body);
  text-align: center;
  line-height: 1.6;
  padding: 0 8px;
}

.page-about .about-cta {
  padding: 24px 0 64px;
}
.page-about .about-cta-panel {
  padding: 32px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
}
.page-about .about-cta-panel::after {
  content: "";
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, var(--about-green-shadow), transparent 70%);
  pointer-events: none;
}
.page-about .about-cta-panel h2 {
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--text-primary);
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}
.page-about .about-cta-panel p {
  color: var(--text-body);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
}
.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 1;
}
.page-about .about-cta-link {
  color: var(--accent);
  font-size: 0.9rem;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
.page-about .about-cta-link:hover {
  border-bottom-color: var(--accent);
}

@media (min-width: 900px) {
  .page-about .about-hero {
    padding: 48px 0 80px;
  }
  .page-about .about-hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
  }
  .page-about .about-hero h1 {
    font-size: clamp(2.4rem, 5vw, 4rem);
  }
  .page-about .about-hero-lead {
    font-size: 1.05rem;
  }
  .page-about .about-milestone-layout {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: start;
  }
  .page-about .about-milestone-list {
    padding-left: 8px;
  }
  .page-about .about-evolution-panel {
    grid-template-columns: 1fr 0.9fr;
    gap: 36px;
    align-items: center;
    padding: 32px;
  }
  .page-about .about-data-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
  .page-about .about-data-item {
    min-height: 140px;
  }
  .page-about .about-value-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .page-about .about-cta-panel {
    padding: 44px 60px;
  }
}