* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #4a9fb5;
  --secondary-color: #7ec8d9;
  --accent-color: #2e7d8f;
  --light-bg: #e8f4f8;
  --white: #ffffff;
  --text-dark: #2c3e50;
  --text-light: #666666;
  --gradient-primary: linear-gradient(135deg, #4a9fb5 0%, #7ec8d9 100%);
  --shadow-sm: 0 2px 8px rgba(74, 159, 181, 0.1);
  --shadow-md: 0 8px 24px rgba(74, 159, 181, 0.15);
  --shadow-lg: 0 16px 48px rgba(74, 159, 181, 0.2);
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  overflow-x: hidden;
}

/* 导航栏 - 2026年流行的玻璃态效果 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-img {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-links a:hover {
  color: var(--primary-color);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
}

.mobile-menu span {
  width: 25px;
  height: 3px;
  background: var(--primary-color);
  transition: all 0.3s ease;
}

/* Hero Section - 现代渐变背景 */
.hero {
  margin-top: 80px;
  background: var(--gradient-primary);
  padding: 6rem 2rem;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }

  50% {
    transform: translateY(-20px);
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  font-weight: 700;
  animation: fadeInUp 1s ease;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.95;
  animation: fadeInUp 1s ease 0.2s both;
}

.cta-button {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--white);
  color: var(--primary-color);
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
  animation: fadeInUp 1s ease 0.4s both;
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

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

/* 通用Section样式 */
section {
  padding: 5rem 2rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--gradient-primary);
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

/* 关于我们 - 卡片式布局 */
.about {
  background: var(--light-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-top: 3rem;
}

.about-image {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
}

.about-content h3 {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
}

.about-content p {
  color: var(--text-light);
  margin-bottom: 1rem;
  line-height: 1.8;
}

.info-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.info-card {
  background: var(--white);
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.info-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.info-card h4 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.info-card p {
  color: var(--text-light);
  font-size: 0.9rem;
  margin: 0;
}

/* 经营范围 - 现代化标签云 */
.business-scope {
  background: var(--white);
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.scope-card {
  background: var(--light-bg);
  padding: 2rem;
  border-radius: 16px;
  border-left: 4px solid var(--primary-color);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.scope-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 0;
}

.scope-card:hover::before {
  opacity: 0.05;
}

.scope-card:hover {
  transform: translateX(10px);
  box-shadow: var(--shadow-md);
}

.scope-card h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.2rem;
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.scope-card ul {
  list-style: none;
  position: relative;
  z-index: 1;
}

.scope-card li {
  padding: 0.5rem 0;
  color: var(--text-light);
  padding-left: 1.5rem;
  position: relative;
}

.scope-card li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: bold;
}

/* 资质认证 */
.qualification {
  background: var(--light-bg);
  text-align: center;
}

.qual-notice {
  background: var(--white);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  max-width: 800px;
  margin: 2rem auto;
  border: 2px solid var(--primary-color);
}

.qual-notice h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.qual-notice p {
  color: var(--text-light);
  line-height: 1.8;
}

/* 联系方式 */
.contact {
  background: var(--white);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.contact-card {
  text-align: center;
  padding: 2rem;
  background: var(--light-bg);
  border-radius: 12px;
  transition: all 0.3s ease;
}

.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  color: var(--white);
  font-size: 1.5rem;
}

.contact-card h3 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.contact-card p {
  color: var(--text-light);
}

/* 页脚 - 2026年流行的深色设计 */
.footer {
  background: var(--text-dark);
  color: var(--white);
  padding: 3rem 2rem 1rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  line-height: 1.8;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--secondary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
}

.qual-cert {
  background: rgba(74, 159, 181, 0.2);
  padding: 1rem;
  border-radius: 8px;
  margin-top: 1rem;
  text-align: center;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .mobile-menu {
    display: flex;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .info-cards {
    grid-template-columns: 1fr;
  }

  .scope-grid {
    grid-template-columns: 1fr;
  }

  section {
    padding: 3rem 1rem;
  }

  .section-title {
    font-size: 2rem;
  }
}

/* 滚动动画 */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- 通用区块样式 --- */
.section-padding {
  padding: 80px 0;
}

.bg-light {
  background-color: #f8f9fa;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 32px;
  color: #0056b3;
  /* 医疗蓝 */
  margin-bottom: 15px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: #0056b3;
  margin: 10px auto 0;
}

.section-title p {
  color: #666;
  font-size: 16px;
}

/* --- 合作品牌样式 (Logo + 介绍) --- */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

.brand-card {
  background: #fff;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.brand-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.brand-logo-box {
  width: 100%;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: #f0f4f8;
  border-radius: 8px;
  padding: 10px;
}

.brand-logo-box img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.brand-info h3 {
  font-size: 20px;
  color: #333;
  margin-bottom: 10px;
}

.brand-info p {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

/* --- 主营商品样式 (图文介绍) --- */
.goods-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
}

.goods-card {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease;
  border: 1px solid #eee;
}

.goods-card:hover {
  transform: translateY(-5px);
}

.goods-img {
  height: 220px;
  overflow: hidden;
}

.goods-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.goods-card:hover .goods-img img {
  transform: scale(1.05);
}

.goods-content {
  padding: 25px;
}

.goods-content h3 {
  font-size: 22px;
  color: #0056b3;
  margin-bottom: 15px;
}

.goods-content p {
  font-size: 14px;
  color: #555;
  line-height: 1.6;
  margin-bottom: 15px;
}

.goods-content ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.goods-content ul li {
  font-size: 13px;
  color: #777;
  padding: 5px 0 5px 20px;
  border-bottom: 1px dashed #eee;
  position: relative;
}

.goods-content ul li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #28a745;
  /* 绿色对勾 */
  font-weight: bold;
}

.goods-content ul li:last-child {
  border-bottom: none;
}