.page-about {
  --about-line: rgba(0, 229, 255, 0.18);
  --about-glow: rgba(200, 255, 0, 0.1);
  background: var(--color-space);
  overflow: hidden;
}
.page-about .breadcrumb {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: calc(var(--header-height) + 24px) 24px 0;
  font-size: 0.85rem;
  color: var(--color-muted);
  position: relative;
  z-index: 5;
}
.page-about .breadcrumb a {
  color: var(--color-muted);
  text-decoration: none;
  transition: color 0.3s ease;
}
.page-about .breadcrumb a:hover {
  color: var(--color-neon);
}
.page-about .breadcrumb__sep {
  margin: 0 8px;
  color: var(--color-divider);
}

/* Hero */
.page-about .about-hero {
  position: relative;
  padding: 72px 24px 64px;
  max-width: var(--container-width);
  margin: 0 auto;
}
.page-about .about-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
.page-about .about-hero__info {
  position: relative;
  z-index: 2;
}
.page-about .about-hero__title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2.2rem, 6vw, 4.2rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  transform: skewX(-6deg);
  margin: 20px 0 24px;
  color: var(--color-text);
}
.page-about .about-hero__title .section-title__highlight {
  color: var(--color-neon);
}
.page-about .about-hero__lead {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--color-muted);
  max-width: 560px;
}
.page-about .about-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.page-about .about-hero__meta-item {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  border: 1px solid var(--color-divider);
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(16, 42, 76, 0.55);
}
.page-about .about-hero__visual {
  position: relative;
}
.page-about .about-hero__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  object-fit: cover;
  border: 1px solid var(--color-divider);
}
.page-about .about-hero__hills {
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 40%;
  pointer-events: none;
}

/* Sections base */
.page-about .section--tight {
  padding-top: 8px;
}
.page-about .container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}
.page-about .section-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 40px;
  padding-left: 20px;
  border-left: 3px solid var(--color-orange);
}
.page-about .section-index {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--color-orange);
}
.page-about .section-title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  transform: skewX(-6deg);
  color: var(--color-text);
  line-height: 1.2;
}
.page-about .section-title .section-title__highlight {
  color: var(--color-neon);
}
.page-about .section-desc {
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-top: 8px;
}

/* Story */
.page-about .about-story {
  padding: 72px 0 64px;
  position: relative;
}
.page-about .about-story::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 42%;
  height: 100%;
  background: linear-gradient(135deg, transparent 60%, rgba(200, 255, 0, 0.04));
  pointer-events: none;
}
.page-about .about-story__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}
.page-about .about-story__text p {
  line-height: 1.9;
  color: var(--color-text);
  margin-bottom: 20px;
}
.page-about .about-story__text .text-muted {
  color: var(--color-muted);
  font-size: 1rem;
}
.page-about .about-story__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--color-divider);
}
.page-about .about-story__fact {
  padding: 16px 20px;
  background: var(--color-surface);
  border-left: 3px solid var(--color-neon);
  min-width: 130px;
}
.page-about .about-story__fact-num {
  display: block;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.8rem;
  color: var(--color-neon);
}
.page-about .about-story__fact-label {
  font-size: 0.8rem;
  color: var(--color-muted);
  letter-spacing: 0.04em;
  line-height: 1.5;
  display: block;
  margin-top: 4px;
}
.page-about .about-story__aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.page-about .about-story__card {
  background: var(--color-deep);
  border: 1px solid var(--color-divider);
  padding: 24px;
  transform: translateX(0);
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.page-about .about-story__card:hover {
  transform: translateX(-6px);
  border-color: rgba(200, 255, 0, 0.3);
}
.page-about .about-story__card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--color-text);
  margin: 12px 0 8px;
}
.page-about .about-story__card p {
  font-size: 0.92rem;
  line-height: 1.8;
  margin-top: 10px;
}

/* Milestone */
.page-about .about-milestone {
  padding: 80px 0 88px;
  background: linear-gradient(180deg, var(--color-space) 0%, #0D2240 50%, var(--color-space) 100%);
  position: relative;
}
.page-about .about-milestone__wrap {
  position: relative;
  margin-top: 40px;
}
.page-about .about-milestone__bg {
  width: 100%;
  max-width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: 4px;
  opacity: 0.4;
  border: 1px solid var(--color-divider);
}
.page-about .about-milestone__timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: -8px;
}
.page-about .about-milestone__item {
  position: relative;
  padding: 24px 24px 24px 44px;
  border-left: 2px solid var(--color-divider);
  background: rgba(16, 42, 76, 0.75);
  transition: background 0.3s ease, border-color 0.3s ease, padding-left 0.3s ease;
  cursor: default;
}
.page-about .about-milestone__item:hover {
  background: var(--color-surface);
  border-left-color: var(--color-neon);
  padding-left: 52px;
}
.page-about .about-milestone__item:not(:last-child) {
  margin-bottom: 16px;
}
.page-about .about-milestone__dot {
  position: absolute;
  left: -8px;
  top: 30px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-neon);
  box-shadow: 0 0 12px var(--color-neon);
  z-index: 2;
}
.page-about .about-milestone__dot::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px solid var(--color-neon);
  opacity: 0.3;
  animation: aboutPulse 2.2s ease-in-out infinite;
}
@keyframes aboutPulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.5); opacity: 0.05; }
}
.page-about .about-milestone__phase {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--color-orange);
  font-weight: 600;
}
.page-about .about-milestone__item h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--color-text);
  margin: 6px 0 6px;
}
.page-about .about-milestone__item p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 480px;
}

/* Dual */
.page-about .about-dual {
  padding: 80px 0 88px;
}
.page-about .about-dual__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}
.page-about .about-dual__panels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.page-about .about-dual__panel {
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  position: relative;
  overflow: hidden;
  transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.page-about .about-dual__panel:hover {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}
.page-about .about-dual__panel--timeline:hover {
  background: linear-gradient(135deg, rgba(200, 255, 0, 0.08), var(--color-surface));
  border-color: var(--color-neon);
}
.page-about .about-dual__panel--score:hover {
  background: linear-gradient(135deg, rgba(255, 107, 0, 0.08), var(--color-surface));
  border-color: var(--color-orange);
}
.page-about .about-dual__panel h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--color-text);
  margin: 14px 0 12px;
}
.page-about .about-dual__panel p {
  line-height: 1.8;
  font-size: 0.95rem;
}
.page-about .about-dual__list {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
}
.page-about .about-dual__list li {
  padding: 6px 0 6px 18px;
  position: relative;
  font-size: 0.9rem;
  color: var(--color-text);
}
.page-about .about-dual__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  background: var(--color-stream);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}
.page-about .about-dual__visual {
  position: relative;
}
.page-about .about-dual__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  border: 1px solid var(--color-divider);
  object-fit: cover;
}
.page-about .about-dual__note {
  margin-top: 16px;
  padding: 16px 20px;
  border-left: 3px solid var(--color-stream);
  background: rgba(0, 229, 255, 0.04);
}
.page-about .about-dual__note p {
  font-size: 0.9rem;
  line-height: 1.8;
}

/* Promise */
.page-about .about-promise {
  padding: 80px 0 88px;
  background: linear-gradient(135deg, var(--color-space) 0%, #0F2A50 60%, var(--color-space) 100%);
  position: relative;
}
.page-about .about-promise::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 100%;
  height: 80px;
  background: linear-gradient(180deg, var(--color-space), transparent);
  pointer-events: none;
}
.page-about .about-promise::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 80px;
  background: linear-gradient(0deg, var(--color-space), transparent);
  pointer-events: none;
}
.page-about .about-promise__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}
.page-about .about-promise__main {
  padding: 36px;
  background: rgba(8, 18, 36, 0.85);
  border: 1px solid var(--color-divider);
  position: relative;
}
.page-about .about-promise__statement {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.page-about .about-promise__icon svg {
  width: 56px;
  height: 56px;
}
.page-about .about-promise__statement h3 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.5rem;
  line-height: 1.4;
  color: var(--color-text);
  transform: skewX(-4deg);
}
.page-about .about-promise__statement p {
  line-height: 1.8;
}
.page-about .about-promise__bars {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--color-divider);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.page-about .about-promise__bar-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.page-about .about-promise__bar-label {
  width: 72px;
  font-size: 0.8rem;
  color: var(--color-muted);
  text-align: right;
}
.page-about .about-promise__bar {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.2rem;
  padding: 8px 20px;
  border-radius: 2px;
  display: inline-block;
}
.page-about .about-promise__bar--base {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-divider);
}
.page-about .about-promise__bar--accent {
  background: var(--color-neon);
  color: var(--color-space);
}
.page-about .about-promise__bar--gap {
  background: var(--color-orange);
  color: var(--color-space);
}
.page-about .about-promise__aside {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.page-about .about-promise__card {
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  padding: 28px;
}
.page-about .about-promise__card p {
  font-size: 1rem;
  padding: 6px 0;
  border-bottom: 1px solid rgba(30, 58, 95, 0.6);
  color: var(--color-text);
}
.page-about .about-promise__card--trust p {
  border-bottom: none;
  padding: 10px 0;
  font-size: 0.92rem;
}
.page-about .about-promise__card .btn {
  margin-top: 14px;
}

/* Anhui */
.page-about .about-anhui {
  padding: 80px 0 88px;
}
.page-about .about-anhui__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}
.page-about .about-anhui__text p {
  line-height: 1.9;
  margin-bottom: 18px;
  color: var(--color-text);
}
.page-about .about-anhui__contact {
  margin-top: 28px;
  padding: 24px;
  background: var(--color-deep);
  border-left: 3px solid var(--color-orange);
}
.page-about .about-anhui__contact p {
  font-size: 0.92rem;
  margin-bottom: 8px;
  color: var(--color-muted);
}
.page-about .about-anhui__contact .btn {
  margin-top: 14px;
}
.page-about .about-anhui__visual {
  position: relative;
  padding: 24px;
  background: linear-gradient(160deg, var(--color-surface), var(--color-deep));
  border: 1px solid var(--color-divider);
}
.page-about .about-anhui__wall {
  width: 100%;
  height: auto;
  display: block;
}
.page-about .about-anhui__visual > p {
  margin-top: 16px;
  font-size: 0.85rem;
  line-height: 1.7;
}

/* CTA */
.page-about .about-cta {
  padding: 56px 0 96px;
}
.page-about .about-cta__inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
  justify-content: space-between;
  padding: 40px;
  background: linear-gradient(135deg, var(--color-surface), var(--color-deep));
  border: 1px solid var(--color-divider);
  position: relative;
  overflow: hidden;
}
.page-about .about-cta__inner::after {
  content: "";
  position: absolute;
  top: -40%;
  right: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(200, 255, 0, 0.15), transparent 70%);
  pointer-events: none;
}
.page-about .about-cta h2 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.4rem, 3vw, 2rem);
  transform: skewX(-6deg);
  color: var(--color-text);
  margin-top: 12px;
}
.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  position: relative;
  z-index: 2;
}

/* Buttons */
.page-about .btn {
  display: inline-block;
  padding: 12px 26px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 2px;
  transform: skewX(-6deg);
  transition: all 0.3s ease;
  cursor: pointer;
}
.page-about .btn--primary {
  background: var(--color-orange);
  color: var(--color-space);
  border-color: var(--color-orange);
}
.page-about .btn--primary:hover {
  background: var(--color-neon);
  border-color: var(--color-neon);
  color: var(--color-space);
  transform: skewX(-6deg) translateY(-2px);
}
.page-about .btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-divider);
}
.page-about .btn--outline:hover {
  border-color: var(--color-neon);
  color: var(--color-neon);
  transform: skewX(-6deg) translateY(-2px);
}

/* Tags */
.page-about .tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: 2px;
  text-transform: uppercase;
}
.page-about .tag--neon {
  background: var(--color-neon);
  color: var(--color-space);
}
.page-about .tag--orange {
  background: var(--color-orange);
  color: var(--color-space);
}
.page-about .tag--ghost {
  border: 1px solid var(--color-divider);
  color: var(--color-muted);
  background: transparent;
}

/* Shared utility alignments */
.page-about .text-muted {
  color: var(--color-muted);
}

/* Desktop */
@media (min-width: 768px) {
  .page-about .about-hero {
    padding: 96px 48px 80px;
  }
  .page-about .about-hero__inner {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
  }
  .page-about .about-story__grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 56px;
  }
  .page-about .about-story__aside {
    border-left: 1px solid var(--color-divider);
    padding-left: 32px;
  }
  .page-about .section-head {
    flex-direction: row;
    align-items: baseline;
    gap: 20px;
    padding-left: 24px;
  }
  .page-about .section-desc {
    margin-top: 0;
    max-width: 480px;
  }
  .page-about .about-milestone__timeline {
    flex-direction: row;
    gap: 0;
    margin-top: -40px;
    padding: 0 12px;
  }
  .page-about .about-milestone__item {
    flex: 1;
    padding: 28px 20px 20px;
    border-left: none;
    border-top: 2px solid var(--color-divider);
    margin-bottom: 0;
    background: rgba(16, 42, 76, 0.6);
  }
  .page-about .about-milestone__item:hover {
    border-top-color: var(--color-neon);
    padding-left: 20px;
    padding-top: 32px;
  }
  .page-about .about-milestone__dot {
    left: 50%;
    top: -8px;
    transform: translateX(-50%);
  }
  .page-about .about-milestone__bg {
    height: 180px;
  }
  .page-about .about-dual__layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
  }
  .page-about .about-dual__panels {
    grid-template-columns: 1fr;
  }
  .page-about .about-promise__grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 32px;
  }
  .page-about .about-anhui__grid {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
  }
  .page-about .about-cta__inner {
    flex-direction: row;
    align-items: center;
    padding: 48px 56px;
  }
  .page-about .about-hero__title {
    font-size: clamp(2.6rem, 5vw, 4.6rem);
  }
}

@media (min-width: 1024px) {
  .page-about .about-dual__panels {
    grid-template-columns: 1fr 1fr;
  }
  .page-about .about-promise__main {
    padding: 44px;
  }
}