.page-about {
  --about-panel-bg: rgba(30, 58, 95, 0.32);
  --about-glass-border: rgba(168, 196, 224, 0.16);
  --about-slant: linear-gradient(135deg, rgba(57, 255, 20, 0.1) 0%, rgba(255, 109, 0, 0.08) 100%);
  --about-orange-end: #FFA500;

  background: var(--c-bg-deep);
  color: var(--c-text);
}

/* Breadcrumb */
.page-about .about-breadcrumb-wrap {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: calc(var(--header-h) + 24px) var(--container-pad) 0;
}

.page-about .about-breadcrumb-wrap .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--c-text-dim);
}

.page-about .about-breadcrumb-wrap .breadcrumb a {
  color: var(--c-text-dim);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-about .about-breadcrumb-wrap .breadcrumb a:hover {
  color: var(--c-accent);
}

.page-about .about-breadcrumb-wrap .breadcrumb-sep {
  color: rgba(168, 196, 224, 0.45);
}

.page-about .about-breadcrumb-wrap .breadcrumb [aria-current="page"] {
  color: var(--c-text);
}

/* Hero */
.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: 36px 0 52px;
  background: linear-gradient(140deg, var(--c-bg-main) 0%, #0E274A 48%, var(--c-bg-deep) 100%);
}

.page-about .about-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(57, 255, 20, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 20, 0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.2));
  pointer-events: none;
}

.page-about .about-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 36px;
}

.page-about .about-hero-copy {
  max-width: 640px;
}

.page-about .about-hero-copy h1 {
  margin: 18px 0 14px;
  font-family: var(--font-heading);
  font-size: clamp(40px, 7vw, 72px);
  line-height: 1.04;
  letter-spacing: 0.01em;
  color: var(--c-text);
}

.page-about .h1-sub {
  display: block;
  margin-top: 10px;
  font-family: var(--font-body);
  font-size: clamp(18px, 2.6vw, 28px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--c-text-dim);
}

.page-about .about-hero-lead {
  margin: 18px 0 12px;
  font-size: 18px;
  line-height: 1.6;
  color: var(--c-text);
}

.page-about .about-hero-text {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text-dim);
}

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

/* Hero CSS visual */
.page-about .about-hero-visual {
  position: relative;
  min-height: 260px;
  border-radius: 18px;
  border: 1px solid var(--about-glass-border);
  background: var(--about-panel-bg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.page-about .hv-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(57, 255, 20, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 20, 0.1) 1px, transparent 1px);
  background-size: 26px 26px;
  transform: perspective(420px) rotateX(18deg) scale(1.6);
  transform-origin: center bottom;
}

.page-about .hv-core {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(57, 255, 20, 0.9) 0%, rgba(57, 255, 20, 0.18) 58%, transparent 72%);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 44px rgba(57, 255, 20, 0.35);
}

.page-about .hv-core::after {
  content: '';
  position: absolute;
  inset: 10px;
  border-radius: 50%;
  border: 2px solid rgba(57, 255, 20, 0.5);
}

.page-about .hv-line {
  position: absolute;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(57, 255, 20, 0) 0%, rgba(57, 255, 20, 0.85) 100%);
  transform: rotate(-12deg);
  left: -10%;
}

.page-about .hv-line.l1 {
  top: 28%;
  width: 70%;
}

.page-about .hv-line.l2 {
  top: 52%;
  width: 46%;
  left: 8%;
}

.page-about .hv-line.l3 {
  top: 74%;
  width: 88%;
}

.page-about .hv-sweep {
  position: absolute;
  top: -20%;
  bottom: -20%;
  width: 48%;
  background: linear-gradient(105deg, transparent, rgba(255, 109, 0, 0.14), transparent);
  transform: skewX(-14deg) translateX(-120%);
  animation: aboutSweep 6s ease-in-out infinite;
}

@keyframes aboutSweep {
  0%, 55% {
    transform: skewX(-14deg) translateX(-120%);
  }
  80%, 100% {
    transform: skewX(-14deg) translateX(220%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .hv-sweep {
    animation: none;
  }
}

/* Story section */
.page-about .about-story,
.page-about .about-timeline-section,
.page-about .about-scope,
.page-about .about-achievement {
  padding: 36px 0 52px;
}

.page-about .about-story-body {
  display: grid;
  gap: 28px;
  margin-top: 32px;
  border-left: 3px solid var(--c-accent);
  padding-left: 20px;
}

.page-about .about-story-quote p {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.35;
  color: var(--c-text);
}

.page-about .about-story-text p {
  margin: 0 0 16px;
  color: var(--c-text-dim);
  line-height: 1.75;
}

.page-about .about-story-points {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .about-story-points li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  background: var(--about-panel-bg);
  border: 1px solid var(--about-glass-border);
  border-radius: 12px;
  color: var(--c-text-dim);
  font-size: 15px;
}

.page-about .about-story-points span {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
  color: var(--c-accent);
}

/* Timeline */
.page-about .about-logo-evolution {
  margin: 32px 0 44px;
  border: 1px solid var(--about-glass-border);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

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

.page-about .timeline {
  position: relative;
  margin-top: 8px;
}

.page-about .timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-accent) 0%, rgba(57, 255, 20, 0.18) 100%);
}

.page-about .timeline-item {
  position: relative;
  padding: 0 0 40px 40px;
}

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

.page-about .timeline-marker {
  position: absolute;
  left: 0;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--c-bg-main);
  border: 3px solid var(--c-accent);
  box-shadow: 0 0 14px rgba(57, 255, 20, 0.55);
}

.page-about .timeline-node {
  background: var(--about-panel-bg);
  border: 1px solid var(--about-glass-border);
  border-radius: 14px;
  padding: 18px 20px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-about .timeline-node:hover {
  border-color: rgba(57, 255, 20, 0.45);
  box-shadow: var(--shadow-glow);
}

.page-about .timeline-year {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--c-accent);
}

.page-about .timeline-node h3 {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: 24px;
  color: var(--c-text);
}

.page-about .timeline-node p {
  margin: 0;
  color: var(--c-text-dim);
  font-size: 15px;
  line-height: 1.7;
}

/* Scope */
.page-about .about-scope-figure {
  margin: 32px 0 36px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--about-glass-border);
  box-shadow: var(--shadow-card);
}

.page-about .about-scope-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .about-scope-grid {
  display: grid;
  gap: 28px;
}

.page-about .about-scope-intro {
  padding: 24px;
  border-radius: 16px;
  background: var(--about-slant);
  border: 1px solid var(--about-glass-border);
}

.page-about .about-scope-intro h3 {
  margin: 0 0 14px;
  font-family: var(--font-heading);
  font-size: 26px;
  color: var(--c-text);
}

.page-about .about-scope-intro p {
  margin: 0 0 16px;
  color: var(--c-text-dim);
  font-size: 15px;
  line-height: 1.75;
}

.page-about .about-scope-intro .btn {
  margin-top: 4px;
}

.page-about .about-scope-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .about-scope-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--about-panel-bg);
  border: 1px solid var(--about-glass-border);
  border-radius: 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-about .about-scope-list li:hover {
  border-color: rgba(57, 255, 20, 0.45);
  box-shadow: 0 0 18px rgba(57, 255, 20, 0.12);
}

.page-about .scope-icon {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-bg-deep);
  background: var(--grad-action);
}

.page-about .scope-copy strong {
  display: block;
  margin-bottom: 4px;
  font-size: 17px;
  color: var(--c-text);
}

.page-about .scope-copy span {
  font-size: 14px;
  color: var(--c-text-dim);
}

/* Achievement */
.page-about .about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 36px 0;
}

.page-about .about-stat {
  text-align: center;
  padding: 22px 12px;
  background: linear-gradient(180deg, rgba(30, 58, 95, 0.45), rgba(6, 13, 31, 0.4));
  border: 1px solid var(--about-glass-border);
  border-radius: 16px;
}

.page-about .about-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(28px, 5vw, 46px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-accent);
}

.page-about .about-stat-label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--c-text-dim);
}

.page-about .about-honor-grid {
  display: grid;
  gap: 28px;
}

.page-about .about-honor-figure {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--about-glass-border);
}

.page-about .about-honor-figure img {
  display: block;
  width: 100%;
  height: auto;
}

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

.page-about .about-honor-list li {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--about-glass-border);
}

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

.page-about .honor-mark {
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  border-radius: 10px;
  color: var(--c-bg-deep);
  background: var(--c-accent);
  box-shadow: 0 0 16px rgba(57, 255, 20, 0.25);
}

.page-about .about-honor-list h3 {
  margin: 0 0 6px;
  font-size: 18px;
  color: var(--c-text);
}

.page-about .about-honor-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-text-dim);
}

/* CTA */
.page-about .about-cta-block {
  margin: 48px 0 28px;
  padding: 28px 22px;
  text-align: center;
  background: var(--about-slant);
  border: 1px solid var(--about-glass-border);
  border-radius: 18px;
}

.page-about .about-cta-title {
  margin: 0 0 18px;
  font-family: var(--font-heading);
  font-size: 24px;
  color: var(--c-text);
}

.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

/* Desktop */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 48px 0 72px;
  }

  .page-about .about-hero-inner {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 48px;
  }

  .page-about .about-hero-visual {
    min-height: 420px;
  }

  .page-about .about-story,
  .page-about .about-timeline-section,
  .page-about .about-scope,
  .page-about .about-achievement {
    padding: 52px 0 76px;
  }

  .page-about .about-story-body {
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
    margin-top: 40px;
  }

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

  .page-about .timeline {
    padding-left: 48px;
  }

  .page-about .timeline::before {
    left: 15px;
  }

  .page-about .timeline-item {
    padding: 0 0 52px 72px;
  }

  .page-about .timeline-marker {
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
  }

  .page-about .timeline-node {
    padding: 24px 28px;
  }

  .page-about .about-scope-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-about .about-honor-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-about .about-cta-block {
    margin: 56px 0 40px;
    padding: 36px 32px;
  }
}