/* ====== 全局基础 ====== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: "Helvetica Neue", Arial, sans-serif;
  background: #f6f8fa;
  color: #222;
  line-height: 1.6;
  min-height: 100vh;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}
img {
  max-width: 100%;
  display: block;
}

/* ====== 容器 ====== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* ====== 导航栏 ====== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(10, 24, 50, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo img {
  height: 40px;
}
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  color: #fff;
  font-size: 1rem;
  font-weight: 500;
  padding: 8px 0;
  position: relative;
}
.nav-links a::after {
  content: '';
  display: block;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #0066cc, #00ffe7);
  transition: width 0.3s;
  margin-top: 2px;
}
.nav-links a:hover {
  color: #00ffe7;
}
.nav-links a:hover::after {
  width: 100%;
}

/* ====== 轮播图 ====== */
.hero-slider {
  position: relative;
  height: 80vh;
  min-height: 400px;
  margin-top: 70px;
  background: #000;
  overflow: hidden;
}
.slider-container {
  height: 100%;
  position: relative;
}
.slide {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  opacity: 0;
  transition: opacity 0.5s;
  z-index: 1;
}
.slide.active {
  opacity: 1;
  z-index: 2;
}
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7);
}
.slide-content {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #fff;
  z-index: 3;
  width: 90%;
  max-width: 700px;
}
.slide-content h1 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 18px;
  text-shadow: 0 2px 8px #0066cc99;
}
.slide-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  text-shadow: 0 2px 8px #00ffe799;
}
.slide-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
}
.btn-primary, .btn-secondary {
  padding: 12px 32px;
  border-radius: 30px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(90deg, #0066cc 0%, #00ffe7 100%);
  color: #fff;
  box-shadow: 0 4px 15px rgba(0,255,231,0.3);
}
.btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid #fff;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px #00ffe7cc;
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  color: #00ffe7;
  border-color: #00ffe7;
}
.slider-nav {
  position: absolute;
  top: 50%;
  width: 100%;
  display: flex;
  justify-content: space-between;
  z-index: 4;
  pointer-events: none;
}
.slider-nav button {
  background: rgba(255,255,255,0.2);
  border: none;
  width: 44px; height: 44px;
  border-radius: 50%;
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  transition: background 0.3s;
  pointer-events: all;
}
.slider-nav button:hover {
  background: #00ffe7;
  color: #0066cc;
}
.slider-dots {
  position: absolute;
  bottom: 30px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 4;
}
.dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: background 0.3s;
}
.dot.active {
  background: #00ffe7;
  box-shadow: 0 0 10px #00ffe7;
}

/* ====== 产品系列 ====== */
.section-title {
  text-align: center;
  font-size: 2.2rem;
  color: #0066cc;
  margin-bottom: 10px;
  font-weight: 700;
  letter-spacing: 2px;
}
.section-desc {
  text-align: center;
  color: #888;
  margin-bottom: 32px;
}
.product-grid {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}
.product-card {
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 2px 16px #00ffe744;
  padding: 32px 24px;
  width: 320px;
  text-align: center;
  transition: box-shadow 0.3s, transform 0.2s;
}
.product-card:hover {
  box-shadow: 0 8px 32px #00ffe7cc;
  transform: translateY(-6px) scale(1.03);
}
.product-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 18px;
}
.product-card h3 {
  font-size: 1.3rem;
  color: #0066cc;
  margin-bottom: 10px;
}
.product-card p {
  color: #555;
  margin-bottom: 18px;
}
.btn-detail {
  display: inline-block;
  padding: 8px 24px;
  border-radius: 20px;
  background: linear-gradient(90deg, #0066cc 0%, #00ffe7 100%);
  color: #fff;
  font-weight: 600;
  transition: background 0.3s, box-shadow 0.3s;
}
.btn-detail:hover {
  background: linear-gradient(90deg, #00ffe7 0%, #0066cc 100%);
  box-shadow: 0 4px 16px #00ffe7cc;
}

/* ====== 行业解决方案 ====== */
.solution-grid {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}
.solution-card {
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 2px 16px #00ffe744;
  padding: 32px 24px;
  width: 260px;
  text-align: center;
  transition: box-shadow 0.3s, transform 0.2s;
}
.solution-card:hover {
  box-shadow: 0 8px 32px #00ffe7cc;
  transform: translateY(-6px) scale(1.03);
}
.solution-card i {
  font-size: 2.2rem;
  color: #00ffe7;
  margin-bottom: 12px;
  filter: drop-shadow(0 0 8px #00ffe7cc);
}
.solution-card h3 {
  font-size: 1.1rem;
  color: #0066cc;
  margin-bottom: 10px;
}
.solution-card p {
  color: #555;
}

/* ====== 服务支持 ====== */
.service-grid {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}
.service-card {
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 2px 16px #00ffe744;
  padding: 32px 24px;
  width: 260px;
  text-align: center;
  transition: box-shadow 0.3s, transform 0.2s;
}
.service-card:hover {
  box-shadow: 0 8px 32px #00ffe7cc;
  transform: translateY(-6px) scale(1.03);
}
.service-card i {
  font-size: 2.2rem;
  color: #00ffe7;
  margin-bottom: 12px;
  filter: drop-shadow(0 0 8px #00ffe7cc);
}
.service-card h3 {
  font-size: 1.1rem;
  color: #0066cc;
  margin-bottom: 10px;
}
.service-card p {
  color: #555;
}

/* ====== 关于我们 ====== */
.about-flex {
  display: flex;
  align-items: center;
  gap: 48px;
  flex-wrap: wrap;
  justify-content: center;
}
.about-image {
  flex: 1 1 320px;
  min-width: 260px;
  max-width: 400px;
}
.about-image img {
  width: 100%;
  border-radius: 24px;
  box-shadow: 0 8px 32px #00ffe799;
}
.about-content {
  flex: 2 1 400px;
  min-width: 260px;
  max-width: 600px;
}
.about-content h2 {
  font-size: 2rem;
  color: #0066cc;
  margin-bottom: 16px;
  font-weight: 700;
}
.about-content p {
  color: #555;
  margin-bottom: 18px;
}
.about-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 18px;
  flex-wrap: wrap;
  list-style: none;
}
.about-stats li {
  background: #f0f7fa;
  color: #0066cc;
  border-radius: 12px;
  padding: 8px 18px;
  font-weight: 600;
  font-size: 1rem;
}
.about-content .btn-detail {
  margin-top: 10px;
}

/* ====== 新闻资讯 ====== */
.news-grid {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  justify-content: center;
}
.news-card {
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 2px 16px #00ffe744;
  padding: 0 0 18px 0;
  width: 320px;
  text-align: center;
  transition: box-shadow 0.3s, transform 0.2s;
  overflow: hidden;
}
.news-card:hover {
  box-shadow: 0 8px 32px #00ffe7cc;
  transform: translateY(-6px) scale(1.03);
}
.news-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 18px 18px 0 0;
  margin-bottom: 12px;
}
.news-card h3 {
  font-size: 1.1rem;
  color: #0066cc;
  margin-bottom: 8px;
}
.news-card p {
  color: #888;
  font-size: 0.95rem;
}

/* ====== 联系我们 ====== */
.contact-section {
  background: linear-gradient(120deg, #0a1832 0%, #1a2a4f 100%);
  padding: 80px 0 60px 0;
  position: relative;
  overflow: hidden;
}
.contact-flex {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
}
.contact-info-card, .contact-form-card {
  flex: 1 1 340px;
  min-width: 280px;
  max-width: 420px;
  background: rgba(10, 24, 50, 0.85);
  border-radius: 24px;
  box-shadow: 0 4px 32px #00ffe744, 0 1.5px 8px #0066cc55;
  padding: 40px 32px 32px 32px;
  position: relative;
  overflow: hidden;
  z-index: 1;
  animation: floatCard 2.5s ease-in-out infinite alternate;
}
@keyframes floatCard {
  0% { transform: translateY(0);}
  100% { transform: translateY(-8px);}
}
.contact-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #00ffe7;
  margin-bottom: 28px;
  letter-spacing: 1px;
  text-shadow: 0 2px 8px #00ffe7cc;
  text-align: center;
}
.contact-info-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.contact-info-list li {
  display: flex;
  align-items: center;
  margin-bottom: 22px;
  font-size: 1.08rem;
  color: #fff;
  letter-spacing: 1px;
  position: relative;
}
.contact-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0066cc 0%, #00ffe7 100%);
  border-radius: 50%;
  margin-right: 14px;
  box-shadow: 0 2px 12px #00ffe7cc;
  animation: iconPulse 1.8s infinite alternate;
}
@keyframes iconPulse {
  0% { box-shadow: 0 2px 12px #00ffe7cc; }
  100% { box-shadow: 0 0 24px #00ffe7cc, 0 0 8px #0066cc99; }
}
.contact-label {
  color: #b0c4de;
  font-size: 1em;
  margin-right: 4px;
}
.contact-value {
  color: #fff;
  font-weight: 600;
  font-size: 1.08em;
}
.contact-glow {
  position: absolute;
  inset: 0;
  border-radius: 24px;
  background: radial-gradient(circle at 70% 30%, #00ffe7 0%, #0066cc 80%, transparent 100%);
  opacity: 0.13;
  filter: blur(18px);
  z-index: 0;
  pointer-events: none;
  animation: glowMove 6s linear infinite alternate;
}
@keyframes glowMove {
  0% { background-position: 70% 30%; }
  100% { background-position: 30% 70%; }
}

/* 留言表单 */
.contact-form-card {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.contact-form-card .form-group {
  margin-bottom: 18px;
  position: relative;
}
.contact-form-card input,
.contact-form-card textarea {
  width: 100%;
  padding: 12px 16px;
  border-radius: 8px;
  border: none;
  background: #162447;
  color: #fff;
  font-size: 1rem;
  margin-top: 4px;
  box-shadow: 0 1px 4px #00ffe722;
  transition: box-shadow 0.2s, background 0.2s;
  outline: none;
}
.contact-form-card input:focus,
.contact-form-card textarea:focus {
  background: #1f4068;
  box-shadow: 0 2px 8px #00ffe7cc;
}
.contact-btn-glow {
  display: inline-block;
  padding: 10px 32px;
  border-radius: 24px;
  background: linear-gradient(90deg, #0066cc 0%, #00ffe7 100%);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 1px;
  text-decoration: none;
  box-shadow: 0 2px 16px #00ffe799;
  border: none;
  outline: none;
  transition: background 0.3s, box-shadow 0.3s, transform 0.2s;
  cursor: pointer;
  margin: 18px auto 0 auto;
  animation: neon-glow 2s infinite alternate;
}
@keyframes neon-glow {
  0% { box-shadow: 0 2px 16px #00ffe799; }
  100% { box-shadow: 0 4px 32px #00ffe7cc, 0 0 64px #0066ccbb; }
}
.form-glow {
  position: absolute;
  inset: 0;
  border-radius: 24px;
  background: radial-gradient(circle at 30% 70%, #00ffe7 0%, #0066cc 80%, transparent 100%);
  opacity: 0.13;
  filter: blur(18px);
  z-index: 0;
  pointer-events: none;
  animation: glowMove 6s linear infinite alternate-reverse;
}

/* ====== 页脚 ====== */
.footer {
  background: linear-gradient(180deg, #0a1832 0%, #1a2a4f 100%);
  color: #fff;
  padding: 40px 0 20px 0;
}
.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  text-align: center;
}
.footer-logo img {
  height: 48px;
  margin-bottom: 10px;
}
.footer-slogan {
  font-size: 1.1rem;
  color: #00ffe7;
  letter-spacing: 2px;
  margin-bottom: 18px;
  text-shadow: 0 2px 8px #00ffe7cc;
}
.footer-contact {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.footer-contact span {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #b0c4de;
  font-size: 1rem;
}
.footer-contact i {
  color: #00ffe7;
  font-size: 1.1em;
}
.footer-icp {
  color: #b0c4de;
  font-size: 0.95rem;
  margin-top: 10px;
}
.footer-icp a {
  color: #00ffe7;
  margin-left: 4px;
  text-decoration: underline;
}
.footer-icp a:hover {
  color: #fff;
}

/* ====== 响应式 ====== */
@media (max-width: 1100px) {
  .about-flex, .contact-flex {
    flex-direction: column;
    gap: 32px;
    align-items: center;
  }
  .about-image, .about-content, .contact-info-card, .contact-form-card {
    max-width: 100%;
    min-width: 0;
  }
  .product-grid, .solution-grid, .service-grid, .news-grid {
    gap: 20px;
  }
}
@media (max-width: 700px) {
  .container {
    padding: 24px 8px;
  }
  .section-title {
    font-size: 1.4rem;
  }
  .hero-slider {
    height: 50vh;
    min-height: 260px;
    margin-top: 60px;
  }
  .slide-content h1 {
    font-size: 1.5rem;
  }
  .slide-content p {
    font-size: 1rem;
  }
  .product-card, .news-card, .solution-card, .service-card {
    width: 98%;
    padding: 18px 8px;
  }
  .about-image img {
    border-radius: 12px;
  }
  .footer-logo img {
    height: 32px;
  }
  .footer-contact {
    gap: 12px;
    font-size: 0.95rem;
  }
}
@media (max-width: 900px) {
  .contact-flex {
    flex-direction: column;
    gap: 32px;
    align-items: center;
  }
  .contact-info-card, .contact-form-card {
    max-width: 100%;
    min-width: 0;
  }
}
@media (max-width: 600px) {
  .contact-section {
    padding: 40px 0 24px 0;
  }
  .contact-title {
    font-size: 1.1rem;
  }
  .contact-info-card, .contact-form-card {
    padding: 24px 10px 18px 10px;
    border-radius: 14px;
  }
}