/* 防肿瘤疫苗专题页面样式 */
/* ================================================== */

/* 基础变量 */
:root {
  /* 主色调 - 使用品牌绿色系统 */
  --primary-color: #2aae67;
  --primary-light: #4ade80;
  --primary-dark: #16a34a;
  --secondary-color: #059669;
  --accent-color: #34d399;
  
  /* 功能色彩 */
  --success-color: #22c55e;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #3b82f6;
  
  /* 中性色彩 */
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-light: #999999;
  --text-white: #ffffff;
  
  /* 背景色彩 */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-light: #f1f5f9;
  --bg-dark: #1f2937;
  
  /* 边框和分割线 */
  --border-light: #e2e8f0;
  --border-medium: #cbd5e1;
  
  /* 阴影效果 */
  --shadow-sm: 0 1px 2px 0 rgba(42, 174, 103, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(42, 174, 103, 0.1), 0 2px 4px -1px rgba(42, 174, 103, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(42, 174, 103, 0.1), 0 4px 6px -2px rgba(42, 174, 103, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(42, 174, 103, 0.1), 0 10px 10px -5px rgba(42, 174, 103, 0.04);
  
  /* 字体系统 */
  --font-sans-cn: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-sans-en: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* 页面基础样式 */
.vaccines-page {
  font-family: var(--font-sans-cn);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
}

/* 专题页面头部 */
.vaccines-hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--text-white);
  padding: 120px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.vaccines-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iNjAiIGhlaWdodD0iNjAiIHZpZXdCb3g9IjAgMCA2MCA2MCIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48ZGVmcz48cGF0dGVybiBpZD0iZ3JpZCIgd2lkdGg9IjYwIiBoZWlnaHQ9IjYwIiBwYXR0ZXJuVW5pdHM9InVzZXJTcGFjZU9uVXNlIj48cGF0aCBkPSJNIDYwIDAgTCAwIDAgMCA2MCIgZmlsbD0ibm9uZSIgc3Ryb2tlPSJyZ2JhKDI1NSwgMjU1LCAyNTUsIC4xKSIgc3Ryb2tlLXdpZHRoPSIxIi8+PC9wYXR0ZXJuPjwvZGVmcz48cmVjdCB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiBmaWxsPSJ1cmwoI2dyaWQpIi8+PC9zdmc+') repeat;
  opacity: 0.1;
}

.vaccines-hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

.vaccines-hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
}

.vaccines-hero .subtitle {
  font-size: 1.2rem;
  font-weight: 400;
  margin-bottom: 30px;
  opacity: 0.9;
  font-family: var(--font-sans-en);
  letter-spacing: 1px;
}

.vaccines-hero p {
  font-size: 1.1rem;
  margin-bottom: 40px;
  opacity: 0.95;
  line-height: 1.8;
}

.hero-cta {
  display: inline-block;
  padding: 15px 35px;
  background-color: var(--text-white);
  color: var(--primary-color);
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-lg);
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  background-color: var(--bg-light);
}

/* 导航栏 */
.vaccines-nav {
  position: sticky;
  top: 80px;
  background-color: var(--primary-color);
  padding: 15px 0;
  z-index: 1000;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.vaccines-nav.sticky {
  background-color: rgba(42, 174, 103, 0.95);
  backdrop-filter: blur(10px);
}

.vaccines-nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  overflow-x: auto;
  padding: 0 15px;
}

.vaccines-nav-item {
  display: block;
  padding: 12px 20px;
  color: var(--text-white);
  text-decoration: none;
  font-weight: 500;
  border-radius: 25px;
  transition: all 0.3s ease;
  white-space: nowrap;
  font-size: 0.95rem;
}

.vaccines-nav-item:hover,
.vaccines-nav-item.active {
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

/* 通用区块样式 */
.section-title {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title h2 {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.section-title .subtitle {
  font-size: 1rem;
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 500;
  font-family: var(--font-sans-en);
}

/* 疫苗介绍区块 */
.vaccine-intro-section {
  padding: 80px 0;
  background: var(--bg-primary);
}

.intro-overview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  margin-bottom: 4rem;
}

.intro-highlight {
  font-size: 1.2rem;
  line-height: 1.8;
  margin-bottom: 2.5rem;
  color: var(--text-primary);
}

.intro-highlight strong {
  color: var(--primary-color);
  font-weight: 600;
}

.key-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: 15px;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.feature-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

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

.feature-content h4 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.feature-content p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.overview-visual img {
  width: 100%;
  border-radius: 15px;
  box-shadow: var(--shadow-md);
}

/* 疫苗作用机制 */
.vaccine-mechanism {
  padding: 80px 0;
  background: var(--bg-secondary);
}

.vaccine-mechanism h3 {
  font-size: 2.2rem;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text-primary);
  font-weight: 600;
}

.mechanism-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.mechanism-step {
  background: var(--bg-primary);
  border-radius: 20px;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  border: 2px solid transparent;
}

.mechanism-step:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.step-number {
  width: 60px;
  height: 60px;
  background: var(--accent-color);
  color: var(--text-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 auto 1.5rem;
}

.step-content h4 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.step-content p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 适用场景 */
.application-scenarios h3 {
  font-size: 2.2rem;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text-primary);
  font-weight: 600;
}

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

.scenario-card {
  background: var(--bg-primary);
  padding: 2.5rem 2rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.scenario-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.scenario-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: var(--text-white);
  font-size: 2rem;
}

.scenario-card h4 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.scenario-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 个体化技术区块 */
.personalized-tech-section {
  padding: 80px 0;
  background: var(--bg-secondary);
}

.tech-intro {
  text-align: center;
  margin-bottom: 4rem;
}

.tech-intro p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto;
}

.tech-platforms {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.platform-card {
  background: var(--bg-primary);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

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

.platform-header {
  background: var(--primary-color);
  color: var(--text-white);
  padding: 2rem;
  text-align: center;
}

.platform-icon {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 1rem;
}

.platform-header h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

.platform-content {
  padding: 2rem;
}

.platform-content p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.tech-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.spec-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text-primary);
}

.spec-item i {
  color: var(--primary-color);
  font-size: 1.1rem;
}

/* AI集成 */
.ai-integration {
  background: var(--bg-primary);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
}

.ai-integration h3 {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text-primary);
  font-weight: 600;
}

.ai-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.ai-feature {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: 15px;
}

.ai-icon {
  width: 60px;
  height: 60px;
  background: var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.ai-content h4 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
  color: var(--text-primary);
}

.ai-content p {
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 疫苗类型区块 */
.vaccine-types-section {
  padding: 80px 0;
  background: var(--bg-primary);
}

.types-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.type-card {
  background: var(--bg-primary);
  border: 2px solid var(--border-light);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.3s ease;
  position: relative;
}

.type-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.type-card.featured {
  border-color: var(--primary-color);
  box-shadow: var(--shadow-md);
}

.type-header {
  background: var(--bg-secondary);
  padding: 2rem;
  text-align: center;
  position: relative;
}

.type-card.featured .type-header {
  background: var(--primary-color);
  color: var(--text-white);
}

.type-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  color: var(--text-white);
  font-size: 2rem;
}

.type-card.featured .type-icon {
  background: rgba(255, 255, 255, 0.2);
}

.type-header h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

.type-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--warning-color);
  color: var(--text-white);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.type-content {
  padding: 2rem;
}

.type-content p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.type-advantages {
  margin-bottom: 1.5rem;
}

.advantage {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 0.8rem;
}

.advantage i {
  color: var(--success-color);
}

.type-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.feature {
  background: var(--bg-secondary);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.type-process h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.process-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.process-steps span {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* 技术对比表格 */
.technology-comparison {
  background: var(--bg-secondary);
  padding: 3rem;
  border-radius: 20px;
  margin-top: 3rem;
}

.technology-comparison h3 {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 2rem;
  color: var(--text-primary);
  font-weight: 600;
}

.comparison-table {
  overflow-x: auto;
}

.comparison-table table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-primary);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.comparison-table th,
.comparison-table td {
  padding: 1rem;
  text-align: center;
  border-bottom: 1px solid var(--border-light);
}

.comparison-table th {
  background: var(--primary-color);
  color: var(--text-white);
  font-weight: 600;
}

.comparison-table .highlight-row {
  background: var(--bg-secondary);
}

.rating {
  font-weight: 600;
}

.rating.excellent {
  color: var(--success-color);
}

.rating.good {
  color: var(--primary-color);
}

.rating.moderate {
  color: var(--warning-color);
}

/* 治疗流程区块 */
.treatment-process-section {
  padding: 80px 0;
  background: var(--bg-secondary);
}

.process-timeline {
  max-width: 800px;
  margin: 0 auto 4rem;
  position: relative;
}

.timeline-item {
  display: flex;
  gap: 2rem;
  margin-bottom: 3rem;
  position: relative;
}

.timeline-marker {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.marker-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  font-size: 1.8rem;
  box-shadow: var(--shadow-md);
}

.marker-line {
  width: 3px;
  height: 100px;
  background: var(--border-light);
  margin-top: 1rem;
}

.timeline-item:last-child .marker-line {
  display: none;
}

.timeline-content {
  flex: 1;
  background: var(--bg-primary);
  padding: 2rem;
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

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

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.timeline-header h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.time-duration {
  background: var(--accent-color);
  color: var(--text-white);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
}

.timeline-body p {
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.process-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.8rem;
}

.detail-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.detail-item i {
  color: var(--success-color);
}

/* 流程总结 */
.process-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.summary-card {
  background: var(--bg-primary);
  padding: 2rem;
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.summary-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.time-breakdown {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.time-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: 10px;
}

.time-item .phase {
  font-weight: 500;
  color: var(--text-primary);
}

.time-item .duration {
  color: var(--primary-color);
  font-weight: 600;
}

.quality-points {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.quality-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: 10px;
}

.quality-item i {
  color: var(--success-color);
  font-size: 1.2rem;
}

/* 临床优势区块 */
.clinical-advantages-section {
  padding: 80px 0;
  background: var(--bg-primary);
}

.stats-showcase {
  margin-bottom: 5rem;
}

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

.stat-card {
  background: var(--primary-color);
  color: var(--text-white);
  padding: 2.5rem 2rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.stat-icon {
  width: 80px;
  height: 80px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  font-size: 2rem;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.stat-description {
  font-size: 0.95rem;
  opacity: 0.9;
  line-height: 1.4;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
  margin-bottom: 5rem;
}

.advantage-card {
  background: var(--bg-primary);
  border: 2px solid var(--border-light);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.advantage-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-color);
}

.advantage-header {
  background: var(--bg-secondary);
  padding: 2rem;
  text-align: center;
}

.advantage-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  color: var(--text-white);
  font-size: 2rem;
}

.advantage-header h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.advantage-content {
  padding: 2rem;
}

.advantage-content p {
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.advantage-benefits {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.benefit-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text-primary);
}

.benefit-item i {
  color: var(--success-color);
}

/* 临床证据 */
.clinical-evidence {
  background: var(--bg-secondary);
  padding: 3rem;
  border-radius: 20px;
}

.clinical-evidence h3 {
  font-size: 2.2rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text-primary);
}

.evidence-container {
  display: grid;
  gap: 2rem;
}

.evidence-item {
  background: var(--bg-primary);
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--shadow-sm);
}

.evidence-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.evidence-header h4 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
}

.study-source {
  background: var(--accent-color);
  color: var(--text-white);
  padding: 0.3rem 0.8rem;
  border-radius: 15px;
  font-size: 0.9rem;
  font-weight: 500;
}

.evidence-content p {
  color: var(--text-light);
  line-height: 1.6;
}

/* 成功案例区块 */
.success-cases-section {
  padding: 80px 0;
  background: var(--bg-secondary);
}

.cases-carousel {
  position: relative;
  margin-bottom: 3rem;
}

.case-slide {
  display: none;
}

.case-slide.active {
  display: block;
}

.case-card {
  background: var(--bg-primary);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  max-width: 800px;
  margin: 0 auto;
}

.case-header {
  background: var(--primary-color);
  color: var(--text-white);
  padding: 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.case-avatar {
  width: 80px;
  height: 80px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.case-info h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.case-diagnosis {
  background: rgba(255,255,255,0.2);
  padding: 0.3rem 0.8rem;
  border-radius: 15px;
  font-size: 0.9rem;
  margin-right: 0.8rem;
}

.case-location {
  font-size: 0.9rem;
  opacity: 0.8;
}

.case-content {
  padding: 2.5rem;
}

.case-content h4 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.case-content p {
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.case-quote {
  background: var(--bg-secondary);
  padding: 1.5rem;
  border-radius: 15px;
  border-left: 4px solid var(--primary-color);
  position: relative;
}

.case-quote i {
  color: var(--primary-color);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.case-quote p {
  font-style: italic;
  color: var(--text-primary);
  margin: 0;
}

/* 轮播控制 */
.carousel-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  margin-bottom: 3rem;
}

.carousel-indicators {
  display: flex;
  gap: 0.8rem;
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--border-light);
  cursor: pointer;
  transition: all 0.3s ease;
}

.indicator.active {
  background: var(--primary-color);
  transform: scale(1.2);
}

.carousel-buttons {
  display: flex;
  gap: 1rem;
}

.carousel-prev,
.carousel-next {
  width: 50px;
  height: 50px;
  border: none;
  background: var(--primary-color);
  color: var(--text-white);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.carousel-prev:hover,
.carousel-next:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

/* 案例总结 */
.cases-summary {
  background: var(--bg-primary);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
}

.cases-summary h3 {
  font-size: 2rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.summary-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.summary-stat {
  text-align: center;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: 15px;
}

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

.summary-stat .stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.summary-stat .stat-label {
  color: var(--text-primary);
  font-weight: 500;
}

/* 专家团队区块 */
.expert-team-section {
  padding: 80px 0;
  background: var(--bg-primary);
}

.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin-bottom: 5rem;
}

.expert-card {
  background: var(--bg-primary);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

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

.expert-image {
  height: 250px;
  overflow: hidden;
}

.expert-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.expert-info {
  padding: 2rem;
}

.expert-info h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.expert-title {
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.expert-affiliation {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.expert-credentials {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.credential {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.credential i {
  color: var(--warning-color);
}

.expert-specialty {
  color: var(--text-light);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* 团队优势 */
.team-advantages {
  background: var(--bg-secondary);
  padding: 3rem;
  border-radius: 20px;
}

.team-advantages h3 {
  font-size: 2.2rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--text-primary);
}

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

.advantage-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 2rem;
  background: var(--bg-primary);
  border-radius: 15px;
  box-shadow: var(--shadow-sm);
}

.advantage-item .advantage-icon {
  width: 60px;
  height: 60px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.advantage-item .advantage-content h4 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
  color: var(--text-primary);
}

.advantage-item .advantage-content p {
  color: var(--text-light);
  line-height: 1.6;
}

/* FAQ区块 */
.faq-section {
  padding: 80px 0;
  background: var(--bg-secondary);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-primary);
  border-radius: 15px;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-question {
  padding: 1.5rem 2rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.3s ease;
}

.faq-question:hover {
  background: var(--bg-secondary);
}

.faq-question h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.faq-toggle {
  width: 30px;
  height: 30px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  transition: all 0.3s ease;
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 2rem;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
  padding: 0 2rem 2rem;
  max-height: 500px;
}

.faq-answer p {
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.faq-answer ul {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

.faq-answer li {
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 0.5rem;
}

.faq-answer strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* 联系咨询区块 */
.contact-section {
  padding: 80px 0;
  background: var(--primary-color);
  color: var(--text-white);
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.contact-info p {
  font-size: 1.2rem;
  line-height: 1.8;
  margin-bottom: 3rem;
  opacity: 0.9;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.contact-details h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.contact-details p {
  margin: 0;
  opacity: 0.9;
}

/* 联系表单 */
.contact-form {
  background: var(--bg-primary);
  padding: 3rem;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
}

.contact-form h3 {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2rem;
  text-align: center;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 2px solid var(--border-light);
  border-radius: 10px;
  font-size: 1rem;
  transition: all 0.3s ease;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

.submit-btn {
  width: 100%;
  background: var(--primary-color);
  color: var(--text-white);
  border: none;
  padding: 1rem 2rem;
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .intro-overview {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .contact-content {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .vaccines-hero h1 {
    font-size: 2.5rem;
  }
  
  .vaccines-hero .subtitle {
    font-size: 1.2rem;
  }
  
  .vaccines-hero p {
    font-size: 1rem;
  }
  
  .vaccines-nav-container {
    justify-content: flex-start;
  }
  
  .vaccines-nav-item {
    padding: 15px 20px;
    font-size: 0.9rem;
  }
  
  .section-title h2 {
    font-size: 2.2rem;
  }
  
  .mechanism-steps {
    grid-template-columns: 1fr;
  }
  
  .scenarios-grid {
    grid-template-columns: 1fr;
  }
  
  .tech-platforms {
    grid-template-columns: 1fr;
  }
  
  .types-grid {
    grid-template-columns: 1fr;
  }
  
  .timeline-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .timeline-header {
    flex-direction: column;
    gap: 1rem;
  }
  
  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
  
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  
  .experts-grid {
    grid-template-columns: 1fr;
  }
  
  .case-header {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }
  
  .evidence-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .vaccines-hero {
    padding: 80px 0 60px;
  }
  
  .vaccines-hero h1 {
    font-size: 2rem;
  }
  
  .vaccines-hero-content {
    padding: 0 15px;
  }
  
  .section-title h2 {
    font-size: 1.8rem;
  }
  
  .platform-content,
  .type-content,
  .advantage-content,
  .timeline-content,
  .case-content {
    padding: 1.5rem;
  }
  
  .contact-form {
    padding: 2rem;
  }
  
  .summary-stats {
    grid-template-columns: 1fr;
  }
}