* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: #111827;
  background-color: #020617;
}

a {
  color: inherit;
  text-decoration: none;
}

/* 进入动画 */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  opacity: 0;
  animation: fadeInUp 0.7s ease forwards;
}

.fade-in.delay-1 { animation-delay: 0.15s; }
.fade-in.delay-2 { animation-delay: 0.3s; }
.fade-in.delay-3 { animation-delay: 0.45s; }

/* 顶部区域 */

header {
  background: radial-gradient(circle at top left, #0ea5e9 0, #020617 45%, #020617 100%);
  color: #f9fafb;
  padding: 16px 20px 40px;
  position: relative;
  overflow: hidden;
}

header::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at 10% 0%, rgba(56,189,248,0.25) 0, transparent 55%);
  opacity: 0.8;
  pointer-events: none;
}

.container {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 16px;
  position: relative;
  z-index: 1;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  height: 34px;
  display: block;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #e5e7eb;
}

.logo-text-main {
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.16em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
}

.nav-links a,
.nav-links span {
  opacity: 0.85;
}

.nav-links a:hover {
  opacity: 1;
}

/* Hero */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

.hero-main-title {
  font-size: 30px;
  line-height: 1.2;
  margin: 0 0 12px;
}

.hero-highlight {
  color: #38bdf8;
}

.hero-subtitle {
  margin: 0 0 18px;
  color: #e5e7eb;
  font-size: 14px;
  max-width: 520px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.badge {
  font-size: 11px;
  padding: 4px 9px;
  border-radius: 999px;
  background-color: rgba(15, 23, 42, 0.68);
  border: 1px solid rgba(148, 163, 184, 0.7);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  backdrop-filter: blur(6px);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background-color: #22c55e;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 4px;
}

.hero-button-primary {
  padding: 9px 18px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, #38bdf8, #0ea5e9);
  color: #0f172a;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(8, 47, 73, 0.6);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.hero-button-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 35px rgba(8, 47, 73, 0.75);
}

.hero-secondary {
  font-size: 12px;
  color: #cbd5f5;
}

.hero-visual {
  background-color: rgba(15,23,42,0.9);
  border-radius: 18px;
  padding: 14px 14px 12px;
  border: 1px solid rgba(148,163,184,0.6);
  box-shadow: 0 25px 60px rgba(15,23,42,0.85);
  overflow: hidden;
  position: relative;
}

.hero-visual-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-size: 11px;
  color: #9ca3af;
}

.hero-visual-pills {
  display: flex;
  gap: 6px;
}

.pill {
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.6);
  font-size: 10px;
  color: #e5e7eb;
}

.hero-image-wrap {
  border-radius: 14px;
  overflow: hidden;
  position: relative;
  isolation: isolate;
}

.hero-image-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15,23,42,0.6), transparent 60%);
  pointer-events: none;
}

.hero-image {
  display: block;
  width: 100%;
  height: 210px;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform 5s ease-out;
}

.hero-visual:hover .hero-image {
  transform: scale(1.08);
}

.hero-caption {
  position: absolute;
  left: 18px;
  bottom: 14px;
  z-index: 2;
  color: #f9fafb;
  font-size: 11px;
}

.hero-caption strong {
  display: block;
  font-size: 12px;
  margin-bottom: 2px;
}

/* 主体 */

main {
  margin-top: -24px;
  padding-bottom: 40px;
  background: radial-gradient(circle at top, #0b1120 0, #020617 40%, #020617 100%);
}

.section {
  margin-top: 26px;
}

.card {
  background-color: #020617;
  border-radius: 18px;
  padding: 20px 18px;
  box-shadow: 0 22px 55px rgba(15,23,42,0.9);
  border: 1px solid rgba(30,64,175,0.5);
  color: #e5e7eb;
}

.section-title {
  font-size: 18px;
  margin: 0 0 8px;
  color: #e5e7eb;
}

.section-subtitle {
  font-size: 13px;
  color: #9ca3af;
  margin: 0 0 12px;
}

.section-divider {
  height: 1px;
  background: linear-gradient(to right, rgba(30,64,175,0), rgba(56,189,248,0.9), rgba(30,64,175,0));
  margin: 10px 0 16px;
  opacity: 0.85;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

ul.clean {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

ul.clean li {
  padding: 7px 0;
  font-size: 14px;
  border-bottom: 1px solid rgba(15,23,42,0.9);
}

/* 小标签 */

.tag {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  background-color: rgba(37,99,235,0.16);
  color: #bfdbfe;
  margin-left: 6px;
}

/* 产品卡片 */

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.product-card {
  background: radial-gradient(circle at top, rgba(56,189,248,0.12), #020617);
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(30,64,175,0.6);
  box-shadow: 0 14px 35px rgba(15,23,42,0.85);
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
  cursor: default;
}

.product-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 26px 60px rgba(15,23,42,0.95);
  border-color: rgba(56,189,248,0.9);
}

.product-image-wrap {
  width: 100%;
  height: 110px;
  overflow: hidden;
}

.product-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transform: scale(1.03);
  transition: transform 1.6s ease-out;
}

.product-card:hover img {
  transform: scale(1.09);
}

.product-body {
  padding: 8px 10px 10px;
}

.product-title {
  font-size: 13px;
  margin: 0 0 3px;
  color: #e5e7eb;
}

.product-meta {
  font-size: 11px;
  color: #9ca3af;
}

/* 联系方式 + 地图 */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 16px;
}

.contact-item {
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 8px;
}

.contact-label {
  font-weight: 500;
  color: #9ca3af;
  display: inline-block;
  width: 70px;
}

.map-container {
  position: relative;
  overflow: hidden;
  border-radius: 14px;
  border: 1px solid rgba(30,64,175,0.7);
  padding-top: 56.25%;
  box-shadow: 0 18px 50px rgba(15,23,42,0.9);
}

.map-container iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* 页脚 */

footer {
  padding: 18px 0 24px;
  font-size: 12px;
  color: #6b7280;
  background-color: #020617;
  border-top: 1px solid rgba(15,23,42,1);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  align-items: center;
}

/* 响应式 */

@media (max-width: 900px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }
  .product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  header {
    padding-bottom: 28px;
  }
  .nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .nav-links {
    gap: 10px;
  }
  .hero-main-title {
    font-size: 24px;
  }
  .product-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}