.page-about {
  --about-brand: #FF4D21;
  --about-brand-hover: #FF6A4A;
  --about-gold: #F6B73C;
  --about-green: #3DDC97;
  --about-blue: #2F6BFF;
  --about-purple: #A08BFF;
  --about-bg: #0A0E17;
  --about-panel: #111A26;
  --about-paper: #F5EFE6;
  --about-grey: #94A3B8;
  --about-border: rgba(245, 239, 230, 0.12);
  --about-font-title: 'DIN Condensed', 'Noto Sans SC Black', 'PingFang SC', sans-serif;
  --about-font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --about-font-data: 'JetBrains Mono', 'Roboto Mono', monospace;
  --about-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --about-duration-fast: 200ms;
  --about-duration-slow: 360ms;

  display: block;
  width: 100%;
  max-width: 100%;
  background: var(--about-bg);
  color: var(--about-paper);
  font-family: var(--about-font-body);
  line-height: 1.7;
  overflow-x: hidden;
}

.page-about .breadcrumb {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px 24px 0;
  font-size: 14px;
  color: var(--about-grey);
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-about .breadcrumb a {
  color: var(--about-blue);
  text-decoration: none;
  transition: color var(--about-duration-fast) var(--about-ease);
}

.page-about .breadcrumb a:hover {
  color: var(--about-paper);
}

.page-about .about-hero {
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 24px 64px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  position: relative;
}

.page-about .about-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(255, 77, 33, 0.14) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.page-about .about-hero__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  z-index: 1;
}

.page-about .about-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--about-gold);
  margin: 0;
  text-transform: uppercase;
}

.page-about .about-hero__eyebrow::before {
  content: '';
  width: 28px;
  height: 2px;
  background: var(--about-gold);
  display: inline-block;
}

.page-about .about-hero__title {
  font-family: var(--about-font-title);
  font-size: 40px;
  font-weight: 900;
  line-height: 1.05;
  margin: 0;
  color: var(--about-paper);
  letter-spacing: 0.02em;
}

.page-about .about-hero__lead {
  font-size: 18px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--about-paper);
  margin: 0;
  max-width: 640px;
}

.page-about .about-hero__desc {
  font-size: 15px;
  line-height: 1.75;
  color: var(--about-grey);
  margin: 0;
  max-width: 640px;
}

.page-about .about-hero__cta {
  margin-top: 8px;
}

.page-about .about-hero__visual {
  position: relative;
  z-index: 1;
}

.page-about .about-hero__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
  border: 1px solid var(--about-border);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

.page-about .about-hero__badge {
  position: absolute;
  right: 20px;
  bottom: 20px;
  background: var(--about-brand);
  color: var(--about-paper);
  padding: 16px 20px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 12px 40px rgba(255, 77, 33, 0.35);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
}

.page-about .about-hero__badge-num {
  font-family: var(--about-font-data);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
}

.page-about .about-hero__badge-label {
  font-size: 13px;
  font-weight: 600;
  line-height: 1.3;
}

.page-about .about-capability {
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 24px;
  scroll-margin-top: 24px;
}

.page-about .about-capability__head {
  margin-bottom: 40px;
}

.page-about .about-capability__kicker,
.page-about .about-journey__kicker,
.page-about .about-trust__kicker {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--about-brand);
  margin: 0 0 12px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-about .about-capability__kicker::before,
.page-about .about-journey__kicker::before,
.page-about .about-trust__kicker::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 2px;
  background: var(--about-brand);
}

.page-about .about-capability__title {
  font-family: var(--about-font-title);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.15;
  margin: 0 0 16px;
  color: var(--about-paper);
}

.page-about .about-capability__desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--about-grey);
  margin: 0;
  max-width: 720px;
}

.page-about .about-capability__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 32px;
}

.page-about .about-capability__chart {
  position: relative;
}

.page-about .about-capability__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
  border: 1px solid var(--about-border);
}

.page-about .about-capability__chart-note {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--about-grey);
}

.page-about .about-capability__chart-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--about-brand);
  box-shadow: 0 0 12px rgba(255, 77, 33, 0.5);
  flex-shrink: 0;
}

.page-about .about-capability__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .capability-item {
  background: var(--about-panel);
  border: 1px solid var(--about-border);
  border-radius: 14px;
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--about-duration-fast) var(--about-ease);
}

.page-about .capability-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--about-brand);
  opacity: 0.7;
}

.page-about .capability-item:hover {
  border-color: rgba(255, 77, 33, 0.4);
}

.page-about .capability-item__title {
  font-family: var(--about-font-title);
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--about-paper);
}

.page-about .capability-item__num {
  font-family: var(--about-font-data);
  font-size: 14px;
  font-weight: 500;
  color: var(--about-brand);
  background: rgba(255, 77, 33, 0.12);
  padding: 4px 8px;
  border-radius: 6px;
  flex-shrink: 0;
}

.page-about .capability-item__desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--about-grey);
  margin: 0;
}

.page-about .about-journey {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 24px;
  scroll-margin-top: 24px;
}

.page-about .about-journey__intro {
  margin-bottom: 40px;
}

.page-about .about-journey__title {
  font-family: var(--about-font-title);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.15;
  margin: 0 0 16px;
  color: var(--about-paper);
}

.page-about .about-journey__desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--about-grey);
  margin: 0;
  max-width: 560px;
}

.page-about .about-journey__visual {
  margin-top: 32px;
}

.page-about .about-journey__img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
  border: 1px solid var(--about-border);
}

.page-about .about-journey__timeline {
  margin-top: 40px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.page-about .journey-node {
  position: relative;
  padding: 0 0 40px 56px;
}

.page-about .journey-node:last-child {
  padding-bottom: 0;
}

.page-about .journey-node__marker {
  position: absolute;
  left: 0;
  top: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 32px;
}

.page-about .journey-node__dot {
  font-family: var(--about-font-data);
  font-size: 12px;
  font-weight: 700;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--about-brand);
  color: var(--about-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--about-bg);
  flex-shrink: 0;
  z-index: 1;
}

.page-about .journey-node__line {
  position: absolute;
  top: 36px;
  bottom: -40px;
  width: 2px;
  background: rgba(255, 77, 33, 0.2);
}

.page-about .journey-node:last-child .journey-node__line {
  display: none;
}

.page-about .journey-node__body {
  background: var(--about-panel);
  border: 1px solid var(--about-border);
  border-radius: 14px;
  padding: 20px 24px;
  position: relative;
  overflow: hidden;
}

.page-about .journey-node--current .journey-node__body {
  border-color: rgba(255, 77, 33, 0.4);
  box-shadow: 0 0 40px rgba(255, 77, 33, 0.08);
}

.page-about .journey-node--current .journey-node__body::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 4px;
  height: 100%;
  background: var(--about-brand);
}

.page-about .journey-node__title {
  font-family: var(--about-font-title);
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 8px;
  color: var(--about-paper);
}

.page-about .journey-node__desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--about-grey);
  margin: 0;
}

.page-about .journey-node__status {
  margin-top: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--about-green);
  background: rgba(61, 220, 151, 0.1);
  padding: 6px 14px;
  border-radius: 999px;
}

.page-about .journey-node__status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--about-green);
  box-shadow: 0 0 10px rgba(61, 220, 151, 0.6);
  animation: about-pulse 2s infinite;
}

@keyframes about-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.page-about .about-trust {
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 24px 72px;
  scroll-margin-top: 24px;
}

.page-about .about-trust__head {
  margin-bottom: 36px;
}

.page-about .about-trust__title {
  font-family: var(--about-font-title);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.15;
  margin: 0 0 16px;
  color: var(--about-paper);
}

.page-about .about-trust__desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--about-grey);
  margin: 0;
  max-width: 720px;
}

.page-about .about-trust__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-about .trust-card {
  background: var(--about-panel);
  border: 1px solid var(--about-border);
  border-radius: 14px;
  padding: 28px;
  transition: transform var(--about-duration-fast) var(--about-ease), border-color var(--about-duration-fast) var(--about-ease);
}

.page-about .trust-card:hover {
  transform: translateY(-4px);
  border-color: rgba(246, 183, 60, 0.3);
}

.page-about .trust-card__title {
  font-family: var(--about-font-title);
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--about-paper);
}

.page-about .trust-card__icon {
  color: var(--about-gold);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.page-about .trust-card__desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--about-grey);
  margin: 0;
}

.page-about .about-trust__stats {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.page-about .about-trust__stat {
  background: var(--about-bg);
  border: 1px solid var(--about-border);
  border-radius: 14px;
  padding: 24px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: relative;
  overflow: hidden;
}

.page-about .about-trust__stat::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--about-gold), transparent);
}

.page-about .about-trust__stat-num {
  font-family: var(--about-font-data);
  font-size: 28px;
  font-weight: 700;
  color: var(--about-paper);
  line-height: 1.2;
}

.page-about .about-trust__stat-label {
  font-size: 13px;
  color: var(--about-grey);
  line-height: 1.4;
}

.page-about .about-bottom {
  border-top: 1px solid var(--about-border);
  background: linear-gradient(180deg, transparent, rgba(17, 26, 38, 0.6) 100%);
}

.page-about .about-bottom__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 24px;
}

.page-about .about-bottom__title {
  font-family: var(--about-font-title);
  font-size: 28px;
  font-weight: 900;
  text-align: center;
  margin: 0 0 32px;
  color: var(--about-paper);
}

.page-about .about-bottom__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-bottom__link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--about-panel);
  border: 1px solid var(--about-border);
  border-radius: 14px;
  padding: 24px;
  text-decoration: none;
  transition: border-color var(--about-duration-fast) var(--about-ease), transform var(--about-duration-fast) var(--about-ease);
}

.page-about .about-bottom__link:hover {
  border-color: var(--about-brand);
  transform: translateY(-2px);
}

.page-about .about-bottom__link-title {
  font-family: var(--about-font-title);
  font-size: 20px;
  font-weight: 800;
  color: var(--about-paper);
}

.page-about .about-bottom__link-desc {
  font-size: 14px;
  color: var(--about-grey);
}

@media (min-width: 768px) {
  .page-about .about-hero {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    padding-top: 64px;
  }

  .page-about .about-hero__title {
    font-size: 52px;
  }

  .page-about .about-capability__title,
  .page-about .about-journey__title,
  .page-about .about-trust__title {
    font-size: 40px;
  }

  .page-about .about-capability__content {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
  }

  .page-about .about-capability__list {
    gap: 20px;
  }

  .page-about .about-trust__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .page-about .about-trust__stats {
    grid-template-columns: repeat(4, 1fr);
  }

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

  .page-about .about-journey__visual {
    margin-top: 40px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding-top: 72px;
    padding-bottom: 96px;
  }

  .page-about .about-hero__title {
    font-size: 64px;
  }

  .page-about .about-hero__lead {
    font-size: 20px;
  }

  .page-about .about-capability,
  .page-about .about-journey,
  .page-about .about-trust {
    padding-left: 48px;
    padding-right: 48px;
  }

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

  .page-about .about-bottom__links {
    grid-template-columns: repeat(4, 1fr);
  }
}