/* about-ui.css: enhanced UI and spacing for zh/about page */

.about-page {
  --about-primary: #0f5ea3;
  --about-secondary: #0d9488;
  --about-accent: #f59e0b;
}

.about-page .page-main {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(980px 360px at 0% -8%, rgba(59, 130, 246, 0.18), rgba(59, 130, 246, 0) 62%),
    radial-gradient(900px 350px at 104% 0%, rgba(45, 212, 191, 0.14), rgba(45, 212, 191, 0) 64%),
    linear-gradient(180deg, #f7fbff 0%, #f5faff 46%, #fbfdff 100%);
}

.about-page .page-main::before,
.about-page .page-main::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  pointer-events: none;
  z-index: 0;
}

.about-page .page-main::before {
  width: 260px;
  height: 260px;
  right: -84px;
  top: 54px;
  background: radial-gradient(circle at 34% 34%, rgba(59, 130, 246, 0.2), rgba(59, 130, 246, 0) 72%);
  animation: aboutFloatA 11s ease-in-out infinite;
}

.about-page .page-main::after {
  width: 220px;
  height: 220px;
  left: -70px;
  top: 42%;
  background: radial-gradient(circle at 68% 40%, rgba(13, 148, 136, 0.16), rgba(13, 148, 136, 0) 72%);
  animation: aboutFloatB 12s ease-in-out infinite;
}

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

.about-page .page-narrow {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
}

.about-page .hero,
.about-page .section {
  margin-top: 0;
}

.about-page .hero {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(15, 94, 163, 0.25);
  border-radius: 24px;
  padding: clamp(22px, 3.3vw, 36px);
  background:
    radial-gradient(920px 360px at 90% -10%, rgba(96, 165, 250, 0.2), rgba(96, 165, 250, 0) 64%),
    linear-gradient(165deg, rgba(255, 255, 255, 0.98), rgba(233, 245, 255, 0.92));
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.09);
}

.about-page .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(240px 170px at var(--about-mx, 74%) var(--about-my, 24%), rgba(15, 94, 163, 0.16), rgba(15, 94, 163, 0) 72%);
}

.about-page .hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 4px;
  opacity: 0.44;
  background: linear-gradient(90deg, var(--about-primary), var(--about-secondary), var(--about-accent));
}

.about-page .hero .lead {
  color: rgba(15, 23, 42, 0.78);
}

.about-page .section {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 22px;
  padding: clamp(20px, 2.9vw, 30px);
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.07);
}

.about-page .section::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  opacity: 0.33;
  background: linear-gradient(90deg, var(--about-primary), var(--about-secondary));
  pointer-events: none;
}

.about-page #mission {
  background:
    radial-gradient(760px 300px at 100% 0%, rgba(96, 165, 250, 0.18), rgba(96, 165, 250, 0) 66%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(238, 247, 255, 0.94));
}

.about-page #timeline {
  background:
    radial-gradient(760px 300px at 0% 100%, rgba(45, 212, 191, 0.16), rgba(45, 212, 191, 0) 66%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(238, 251, 247, 0.94));
}

.about-page #service-area {
  background:
    radial-gradient(760px 300px at 100% 100%, rgba(251, 191, 36, 0.16), rgba(251, 191, 36, 0) 66%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(255, 248, 236, 0.94));
}

.about-page #process {
  background:
    radial-gradient(760px 300px at 0% 0%, rgba(147, 197, 253, 0.18), rgba(147, 197, 253, 0) 66%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(240, 246, 255, 0.94));
}

.about-page #compliance {
  background:
    radial-gradient(760px 300px at 100% 0%, rgba(134, 239, 172, 0.16), rgba(134, 239, 172, 0) 66%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(241, 252, 244, 0.94));
}

.about-page #cta {
  background:
    radial-gradient(760px 300px at 0% 100%, rgba(56, 189, 248, 0.16), rgba(56, 189, 248, 0) 66%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(239, 249, 255, 0.94));
}

.about-page .about-cards {
  gap: 14px;
}

.about-page .about-cards .card,
.about-page .timeline-item,
.about-page .map-box,
.about-page .meta-row,
.about-page .steps li,
.about-page .hub-faq-item {
  border-color: rgba(15, 23, 42, 0.12);
  box-shadow: 0 9px 18px rgba(15, 23, 42, 0.06);
  transition: transform 0.26s ease, box-shadow 0.26s ease, border-color 0.26s ease;
}

.about-page .about-cards .card:hover,
.about-page .timeline-item:hover,
.about-page .map-box:hover,
.about-page .meta-row:hover,
.about-page .steps li:hover,
.about-page .hub-faq-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 13px 24px rgba(15, 23, 42, 0.09);
  border-color: rgba(15, 94, 163, 0.24);
}

.about-page .map-box {
  background:
    radial-gradient(760px 300px at 100% 0%, rgba(96, 165, 250, 0.16), rgba(96, 165, 250, 0) 66%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(238, 247, 255, 0.94));
}

.about-page .about-cta {
  margin-top: 14px;
}

.about-page .about-cta .btn.primary {
  background: var(--about-primary);
  border-color: rgba(15, 94, 163, 0.76);
}

.about-reveal {
  opacity: 0;
  transform: translate3d(0, 14px, 0);
  transition:
    opacity 0.62s cubic-bezier(0.22, 0.61, 0.36, 1) var(--about-delay, 0ms),
    transform 0.62s cubic-bezier(0.22, 0.61, 0.36, 1) var(--about-delay, 0ms);
  will-change: opacity, transform;
}

.about-reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

@keyframes aboutFloatA {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(-7px, 10px, 0);
  }
}

@keyframes aboutFloatB {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(8px, -9px, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .about-page .page-main::before,
  .about-page .page-main::after {
    animation: none;
  }

  .about-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .about-page .about-cards .card,
  .about-page .timeline-item,
  .about-page .map-box,
  .about-page .meta-row,
  .about-page .steps li,
  .about-page .hub-faq-item {
    transition: none;
  }
}