:root {
  --brand-ink: #11243a;
  --brand-ink-soft: #315072;
  --brand-surface: #f5fbff;
  --brand-cyan: #08b3cf;
  --brand-orange: #ff8f3f;
  --brand-line: #dbe8f2;
  --brand-success: #127a52;
  --focus-ring: 0 0 0 0.25rem rgba(8, 179, 207, 0.25);
}

html,
body {
  overflow-x: clip;
}

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--brand-ink);
  background:
    radial-gradient(900px 500px at 98% 2%, rgba(8, 179, 207, 0.12), transparent 70%),
    radial-gradient(760px 440px at 2% 22%, rgba(255, 143, 63, 0.1), transparent 70%),
    linear-gradient(180deg, #ffffff 0%, #f7fbff 42%, #ffffff 100%);
}

h1,
h2,
h3,
h4,
h5,
.display-1,
.display-2,
.display-3 {
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  letter-spacing: 0.01em;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip-link:focus {
  left: 0.75rem;
  top: 0.75rem;
  width: auto;
  height: auto;
  z-index: 1080;
  padding: 0.5rem 0.75rem;
  background: #fff;
  border: 1px solid var(--brand-cyan);
  border-radius: 0.5rem;
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  color: #fff;
  font-size: 0.875rem;
  font-weight: 700;
  background: linear-gradient(140deg, var(--brand-cyan), var(--brand-orange));
}

.company-logo {
  width: 3rem;
  height: 3rem;
  border-radius: 0.45rem;
  object-fit: cover;
}

.navbar .nav-link {
  font-weight: 500;
  color: var(--brand-ink-soft);
}

.navbar .nav-link.active,
.navbar .nav-link:hover {
  color: var(--brand-ink);
}

.btn-brand {
  background: linear-gradient(135deg, var(--brand-cyan), #1a8bff);
  color: #fff;
  border: 0;
}

.btn-brand:hover,
.btn-brand:focus-visible {
  color: #fff;
  filter: brightness(0.95);
}

.btn-outline-brand {
  border-color: var(--brand-cyan);
  color: var(--brand-cyan);
}

.btn-outline-brand:hover,
.btn-outline-brand:focus-visible {
  background: var(--brand-cyan);
  color: #fff;
}

.btn:focus-visible,
a:focus-visible,
.form-control:focus,
.form-select:focus {
  box-shadow: var(--focus-ring);
}

.hero {
  position: relative;
  border: 1px solid var(--brand-line);
  border-radius: 1.5rem;
  background: linear-gradient(130deg, #ffffff 0%, #eef9ff 55%, #fff6ef 100%);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  right: -120px;
  top: -120px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(8, 179, 207, 0.3), transparent 70%);
}

.hero-carousel {
  padding-right: 3.5rem;
}

.hero-carousel .carousel-item {
  min-height: 17rem;
}

.hero-carousel .carousel-control-prev,
.hero-carousel .carousel-control-next {
  width: 2.5rem;
  top: auto;
  bottom: 0.25rem;
  opacity: 0.9;
}

.hero-carousel .carousel-control-prev {
  right: 2.8rem;
  left: auto;
}

.hero-carousel .carousel-control-next {
  right: 0;
}

.hero-carousel .carousel-control-prev-icon,
.hero-carousel .carousel-control-next-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background-color: rgba(17, 36, 58, 0.75);
  background-size: 56% 56%;
}

.hero-carousel-indicators {
  justify-content: flex-start;
  margin-left: 0;
  margin-right: 0;
}

.hero-carousel-indicators [data-bs-target] {
  background-color: rgba(17, 36, 58, 0.35);
}

@media (max-width: 991.98px) {
  .hero-carousel {
    padding-right: 0;
    padding-bottom: 3rem;
  }

  .hero-carousel .carousel-item {
    min-height: 19rem;
  }
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--brand-line);
  background: #fff;
  font-size: 0.85rem;
  color: var(--brand-ink-soft);
}

.card-soft {
  border: 1px solid var(--brand-line);
  background: rgba(255, 255, 255, 0.92);
  border-radius: 1rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card-soft:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(17, 36, 58, 0.08);
}

.section-title {
  max-width: 46rem;
}

.visual-frame {
  border: 1px solid var(--brand-line);
  background: #fff;
  box-shadow: 0 14px 28px rgba(17, 36, 58, 0.08);
}

.content-note {
  border-left: 4px solid var(--brand-cyan);
  background: rgba(8, 179, 207, 0.08);
  padding: 0.85rem 1rem;
  border-radius: 0.5rem;
}

.metric {
  padding: 1rem;
  border-radius: 0.9rem;
  border: 1px solid var(--brand-line);
  background: #fff;
}

.metric strong {
  display: block;
  font-size: 1.9rem;
  line-height: 1.1;
}

.timeline-item {
  position: relative;
  padding-left: 1.6rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--brand-cyan);
}

.cta-band {
  border-radius: 1.2rem;
  border: 1px solid transparent;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(135deg, rgba(8, 179, 207, 0.8), rgba(255, 143, 63, 0.8)) border-box;
}

.site-footer {
  border-top: 1px solid var(--brand-line);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.7), #f2f8fd);
}

.beian-info {
  margin-top: 0.35rem;
  font-size: 0.82rem;
  color: var(--brand-ink-soft);
}

.footer-links a {
  color: var(--brand-ink-soft);
  text-decoration: none;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--brand-cyan);
}

.form-status {
  min-height: 1.5rem;
  font-size: 0.95rem;
}

.form-status[data-state="ok"] {
  color: var(--brand-success);
}

.form-status[data-state="error"] {
  color: #9a2b1f;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  animation: revealUp 0.55s ease forwards;
}

.reveal-delay-1 { animation-delay: 0.08s; }
.reveal-delay-2 { animation-delay: 0.16s; }
.reveal-delay-3 { animation-delay: 0.24s; }

@keyframes revealUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 991.98px) {
  .hero {
    border-radius: 1rem;
  }

  .metric strong {
    font-size: 1.6rem;
  }
}