/* 肿瘤防治计划专题页面样式 */

/* 全局样式 */
:root {
  --primary-color: #2aae67;
  --primary-dark: #1e8a4f;
  --primary-light: #4ec385;
  --secondary-color: #1a5276;
  --accent-color: #f39c12;
  --text-dark: #333333;
  --text-medium: #666666;
  --text-light: #999999;
  --background-light: #f8f9fa;
  --background-alt: #f0f7f4;
  --border-color: #e5e5e5;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --gradient-green: linear-gradient(135deg, #2aae67, #1e8a4f);
  --gradient-blue: linear-gradient(135deg, #3498db, #1a5276);
}

.container-light {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

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

.section-title h2 {
  color: var(--primary-dark);
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 15px;
  position: relative;
  display: inline-block;
}

.section-title h2:after {
  content: "";
  position: absolute;
  width: 80px;
  height: 3px;
  background: var(--primary-color);
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
}

.section-title .subtitle {
  color: var(--text-medium);
  font-size: 18px;
  max-width: 800px;
  margin: 0 auto;
}

/* 导航样式 */
.screening-nav {
  background-color: #fff;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: all 0.3s ease;
}

.screening-nav.sticky {
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.15);
}

.screening-nav-container {
  display: flex;
  justify-content: center;
  padding: 0;
  overflow-x: auto;
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}

.screening-nav-item {
  display: inline-block;
  padding: 12px 15px;
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  transition: all 0.3s ease;
  position: relative;
}

.screening-nav-item:hover,
.screening-nav-item.active {
  color: var(--primary-color);
}

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

.screening-nav-item:hover:after, 
.screening-nav-item.active:after {
  width: 100%;
}

/* 介绍部分样式 */
.intro-section {
  padding: 80px 0 60px;
  background-color: var(--background-light);
  position: relative;
  overflow: hidden;
}

.intro-section:before {
  content: "";
  position: absolute;
  width: 200px;
  height: 200px;
  background: rgba(42, 174, 103, 0.1);
  border-radius: 50%;
  top: -100px;
  left: -100px;
  z-index: 1;
}

.intro-section:after {
  content: "";
  position: absolute;
  width: 150px;
  height: 150px;
  background: rgba(26, 82, 118, 0.1);
  border-radius: 50%;
  bottom: -50px;
  right: -50px;
  z-index: 1;
}

.intro-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  position: relative;
  z-index: 2;
}

.intro-text {
  flex: 1;
  padding-right: 40px;
  min-width: 300px;
}

.intro-text h1 {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 20px;
  line-height: 1.3;
}

.intro-text .subtitle {
  font-size: 20px;
  color: var(--primary-color);
  margin-bottom: 25px;
  font-weight: 500;
}

.intro-text p {
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: 30px;
}

.intro-badges {
  display: flex;
  flex-wrap: wrap;
  margin-bottom: 30px;
  gap: 15px;
}

.intro-badge {
  background: rgba(42, 174, 103, 0.1);
  color: var(--primary-dark);
  padding: 8px 15px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  font-weight: 500;
}

.intro-badge i {
  margin-right: 5px;
  color: var(--primary-color);
}

.intro-cta .btn {
  padding: 12px 25px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 3px 10px rgba(42, 174, 103, 0.2);
}

.intro-cta .btn-primary {
  background: var(--gradient-green);
  border: none;
  color: white;
}

.intro-cta .btn-primary:hover {
  box-shadow: 0 5px 15px rgba(42, 174, 103, 0.3);
  transform: translateY(-2px);
}

.intro-cta .btn-outline {
  background: transparent;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  margin-left: 15px;
}

.intro-cta .btn-outline:hover {
  background: rgba(42, 174, 103, 0.1);
}

.intro-image {
  flex: 1;
  min-width: 300px;
  text-align: center;
}

.intro-image img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.intro-image img:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.intro-features {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
}

.feature-item {
  background: white;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.feature-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon i {
  color: white;
  font-size: 28px;
}

.feature-item h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 15px;
}

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

/* 挑战部分样式 */
.challenges-section {
  padding: 80px 0;
  background-color: white;
}

.challenge-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.challenge-card {
  background: var(--background-light);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  border-bottom: 3px solid transparent;
}

.challenge-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
  border-bottom: 3px solid var(--primary-color);
}

.card-icon {
  width: 70px;
  height: 70px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 25px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.card-icon i {
  color: var(--primary-color);
  font-size: 30px;
}

.challenge-card h3 {
  font-size: 22px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 15px;
}

.challenge-card p {
  color: var(--text-medium);
  line-height: 1.7;
}

.pain-points {
  background: var(--background-alt);
  padding: 40px;
  border-radius: 15px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.pain-points h3 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 25px;
  text-align: center;
}

.pain-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.pain-item {
  display: flex;
  align-items: center;
  background: white;
  padding: 15px 20px;
  border-radius: 8px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.pain-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.pain-icon {
  width: 45px;
  height: 45px;
  min-width: 45px;
  background: var(--primary-light);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 15px;
}

.pain-icon i {
  font-size: 20px;
}

.pain-text {
  font-weight: 500;
  color: var(--text-dark);
}

/* 解决方案部分样式 */
.solution-section {
  padding: 80px 0;
  background-color: var(--background-light);
  position: relative;
  overflow: hidden;
}

.solution-section:before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  background: rgba(26, 82, 118, 0.05);
  border-radius: 50%;
  top: -150px;
  right: -150px;
}

.solution-intro {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 60px;
  align-items: center;
}

.solution-image {
  flex: 1;
  min-width: 300px;
}

.solution-image img {
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.solution-text {
  flex: 1;
  min-width: 300px;
}

.solution-text p {
  color: var(--text-medium);
  line-height: 1.7;
  font-size: 16px;
  margin-bottom: 30px;
}

.solution-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.step-number {
  width: 50px;
  height: 50px;
  min-width: 50px;
  background: var(--gradient-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 20px;
}

.step-text h4 {
  color: var(--text-dark);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 5px;
}

.step-text p {
  color: var(--text-medium);
  margin-bottom: 0;
}

.core-principles {
  margin-top: 60px;
}

.core-principles h3 {
  text-align: center;
  font-size: 26px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 40px;
  position: relative;
}

.core-principles h3:after {
  content: "";
  position: absolute;
  width: 60px;
  height: 3px;
  background: var(--primary-color);
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.principle-card {
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  text-align: center;
}

.principle-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.principle-icon {
  width: 80px;
  height: 80px;
  background: var(--background-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 25px;
  transition: all 0.3s ease;
}

.principle-card:hover .principle-icon {
  background: var(--gradient-green);
}

.principle-icon i {
  color: var(--primary-color);
  font-size: 35px;
  transition: all 0.3s ease;
}

.principle-card:hover .principle-icon i {
  color: white;
}

.principle-card h4 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 15px;
}

.principle-card p {
  color: var(--text-medium);
  line-height: 1.7;
}

/* 治疗流程部分样式 */
.process-section {
  padding: 80px 0;
  background-color: white;
}

.process-timeline {
  position: relative;
  padding: 0 20px;
  margin-bottom: 60px;
}

.process-timeline:before {
  content: "";
  position: absolute;
  width: 4px;
  background: var(--primary-light);
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 50px;
  position: relative;
}

.timeline-number {
  width: 60px;
  height: 60px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 24px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  box-shadow: 0 0 0 5px white, 0 5px 15px rgba(0, 0, 0, 0.1);
}

.timeline-content {
  width: 46%;
  padding: 30px;
  background: var(--background-light);
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
  margin-left: auto;
}

.timeline-item:nth-child(odd) .timeline-content:before {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  background: var(--background-light);
  left: -10px;
  top: 20px;
  transform: rotate(45deg);
}

.timeline-item:nth-child(even) .timeline-content:before {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  background: var(--background-light);
  right: -10px;
  top: 20px;
  transform: rotate(45deg);
}

.timeline-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 15px;
}

.timeline-content p {
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: 20px;
}

.timeline-features {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.feature-item {
  background: white;
  padding: 8px 15px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.03);
}

.feature-item i {
  color: var(--primary-color);
  margin-right: 8px;
}

.feature-item span {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dark);
}

.process-summary {
  background: var(--background-alt);
  padding: 40px;
  border-radius: 15px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.process-summary h3 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 30px;
  text-align: center;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
}

.summary-item {
  display: flex;
  align-items: flex-start;
  background: white;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.summary-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.summary-icon {
  width: 60px;
  height: 60px;
  min-width: 60px;
  background: var(--gradient-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 20px;
}

.summary-icon i {
  color: white;
  font-size: 26px;
}

.summary-content h4 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.summary-content p {
  color: var(--text-medium);
  line-height: 1.6;
  margin-bottom: 0;
}

/* 疫苗技术部分样式 */
.vaccine-section {
  padding: 80px 0;
  background-color: var(--background-light);
}

.vaccine-intro {
  margin-bottom: 60px;
}

.vaccine-intro h3 {
  font-size: 26px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 20px;
  text-align: center;
}

.vaccine-intro p {
  color: var(--text-medium);
  line-height: 1.7;
  max-width: 900px;
  margin: 0 auto 40px;
  text-align: center;
}

.tech-comparison {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  justify-content: center;
}

.traditional-tech, 
.advanced-tech {
  flex: 1;
  min-width: 300px;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.traditional-tech {
  background: white;
  border-left: 5px solid #e74c3c;
}

.advanced-tech {
  background: white;
  border-left: 5px solid var(--primary-color);
}

.tech-comparison h4 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.traditional-tech h4 {
  color: #e74c3c;
}

.advanced-tech h4 {
  color: var(--primary-color);
}

.tech-limits,
.tech-benefits {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tech-limits li,
.tech-benefits li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 15px;
  padding-left: 35px;
  position: relative;
}

.tech-limits li i,
.tech-benefits li i {
  position: absolute;
  left: 0;
  top: 3px;
  font-size: 18px;
}

.tech-limits li i {
  color: #e74c3c;
}

.tech-benefits li i {
  color: var(--primary-color);
}

.vaccine-platforms {
  margin-bottom: 60px;
}

.vaccine-platforms h3 {
  font-size: 26px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 40px;
  text-align: center;
  position: relative;
}

.vaccine-platforms h3:after {
  content: "";
  position: absolute;
  width: 60px;
  height: 3px;
  background: var(--primary-color);
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
}

.platform-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.platform-card {
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.platform-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.platform-icon {
  width: 70px;
  height: 70px;
  background: var(--gradient-green);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 25px;
  transform: rotate(45deg);
  box-shadow: 0 5px 15px rgba(42, 174, 103, 0.2);
}

.platform-icon i {
  color: white;
  font-size: 30px;
  transform: rotate(-45deg);
}

.platform-card h4 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 15px;
}

.platform-card p {
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: 20px;
}

.platform-features {
  list-style: none;
  padding: 0;
  margin: 0;
}

.platform-features li {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  color: var(--text-dark);
  font-weight: 500;
}

.platform-features li i {
  color: var(--primary-color);
  margin-right: 10px;
}

.clinical-evidence h3 {
  font-size: 26px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 40px;
  text-align: center;
  position: relative;
}

.clinical-evidence h3:after {
  content: "";
  position: absolute;
  width: 60px;
  height: 3px;
  background: var(--primary-color);
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
}

.evidence-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.evidence-card {
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.evidence-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.evidence-card:before {
  content: "";
  position: absolute;
  width: 100%;
  height: 5px;
  background: var(--gradient-green);
  top: 0;
  left: 0;
}

.evidence-icon {
  width: 60px;
  height: 60px;
  background: var(--background-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.evidence-icon i {
  color: var(--primary-color);
  font-size: 26px;
}

.evidence-card h4 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 15px;
}

.evidence-card p {
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: 0;
}

/* 绿色疗法部分样式 */
.green-therapy-section {
  padding: 80px 0;
  background-color: white;
}

.green-intro {
  margin-bottom: 60px;
}

.green-intro p {
  color: var(--text-medium);
  line-height: 1.7;
  max-width: 900px;
  margin: 0 auto 40px;
  text-align: center;
  font-size: 17px;
}

.green-feature {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
}

.feature-image {
  flex: 1;
  min-width: 300px;
}

.feature-image img {
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-desc {
  flex: 1;
  min-width: 300px;
}

.feature-desc h3 {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 25px;
}

.green-benefits {
  list-style: none;
  padding: 0;
  margin: 0;
}

.green-benefits li {
  display: flex;
  align-items: flex-start;
  margin-bottom: 20px;
  color: var(--text-medium);
  line-height: 1.6;
}

.green-benefits li i {
  color: var(--primary-color);
  margin-right: 15px;
  font-size: 18px;
  margin-top: 3px;
}

.green-benefits li strong {
  color: var(--text-dark);
  margin-right: 5px;
}

.therapy-approaches {
  margin-bottom: 60px;
}

.therapy-approaches h3 {
  font-size: 26px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 40px;
  text-align: center;
  position: relative;
}

.therapy-approaches h3:after {
  content: "";
  position: absolute;
  width: 60px;
  height: 3px;
  background: var(--primary-color);
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.approach-card {
  background: var(--background-light);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.approach-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.approach-card:before {
  content: "";
  position: absolute;
  width: 0;
  height: 3px;
  background: var(--gradient-green);
  bottom: 0;
  left: 0;
  transition: width 0.3s ease;
}

.approach-card:hover:before {
  width: 100%;
}

.approach-icon {
  width: 70px;
  height: 70px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 25px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.approach-icon i {
  color: var(--primary-color);
  font-size: 30px;
}

.approach-card h4 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 15px;
}

.approach-card p {
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: 20px;
}

.approach-points {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.point-item {
  background: white;
  padding: 12px 15px;
  border-radius: 8px;
  color: var(--text-dark);
  font-weight: 500;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.03);
  transition: all 0.3s ease;
}

.point-item:hover {
  background: var(--primary-light);
  color: white;
  transform: translateX(5px);
}

.therapy-benefits h3 {
  font-size: 26px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 40px;
  text-align: center;
  position: relative;
}

.therapy-benefits h3:after {
  content: "";
  position: absolute;
  width: 60px;
  height: 3px;
  background: var(--primary-color);
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
}

.benefits-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.stat-item {
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  text-align: center;
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.stat-number {
  font-size: 36px;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.stat-desc {
  color: var(--text-dark);
  font-weight: 500;
}

.quote-box {
  background: var(--gradient-green);
  padding: 40px;
  border-radius: 15px;
  color: white;
  box-shadow: 0 10px 30px rgba(42, 174, 103, 0.2);
  position: relative;
}

.quote-box:before {
  content: "\201C";
  position: absolute;
  top: 20px;
  left: 20px;
  font-size: 80px;
  color: rgba(255, 255, 255, 0.2);
  font-family: serif;
}

.quote-box blockquote {
  font-size: 18px;
  line-height: 1.7;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.quote-author {
  text-align: right;
  font-weight: 600;
  font-style: italic;
}

/* FAQ部分样式 */
.faq-section {
  padding: 80px 0;
  background-color: var(--background-light);
}

.faq-container {
  max-width: 900px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
  margin-bottom: 20px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.active {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.faq-question {
  padding: 20px 30px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-dark);
  font-weight: 600;
  position: relative;
}

.faq-question:hover {
  color: var(--primary-color);
}

.faq-item.active .faq-question {
  color: var(--primary-color);
  border-bottom: 1px solid var(--border-color);
}

.faq-question i {
  transition: all 0.3s ease;
  color: var(--primary-color);
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 20px 30px;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-answer p {
  color: var(--text-medium);
  line-height: 1.7;
  margin-bottom: 0;
}

/* CTA部分样式 */
.prevention-cta {
  padding: 80px 0;
  background: var(--gradient-green);
  position: relative;
  overflow: hidden;
}

.prevention-cta:before {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  top: -150px;
  left: -150px;
}

.prevention-cta:after {
  content: "";
  position: absolute;
  width: 200px;
  height: 200px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  bottom: -100px;
  right: -100px;
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-size: 36px;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 18px;
  max-width: 800px;
  margin: 0 auto 40px;
}

.cta-buttons .btn {
  padding: 12px 30px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 16px;
  transition: all 0.3s ease;
  margin: 0 10px;
}

.cta-buttons .btn-primary {
  background: white;
  color: var(--primary-dark);
  border: none;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.cta-buttons .btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.cta-buttons .btn-outline {
  background: transparent;
  border: 2px solid white;
  color: white;
}

.cta-buttons .btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-3px);
}

/* 响应式样式 */
@media (max-width: 992px) {
  .section-title h2 {
    font-size: 28px;
  }
  
  .intro-text h1 {
    font-size: 32px;
  }
  
  .process-timeline:before {
    left: 30px;
  }
  
  .timeline-number {
    left: 30px;
    transform: none;
  }
  
  .timeline-content {
    width: calc(100% - 60px);
    margin-left: 60px;
  }
  
  .timeline-item:nth-child(odd) .timeline-content:before,
  .timeline-item:nth-child(even) .timeline-content:before {
    left: -10px;
    right: auto;
  }
  
  .tech-comparison {
    flex-direction: column;
  }
  
  .cta-content h2 {
    font-size: 32px;
  }
}

@media (max-width: 768px) {
  .intro-content,
  .solution-intro,
  .green-feature {
    flex-direction: column;
  }
  
  .intro-text,
  .solution-text,
  .feature-desc {
    padding-right: 0;
    margin-bottom: 30px;
  }
  
  .principle-card,
  .challenge-card,
  .platform-card,
  .evidence-card,
  .approach-card {
    padding: 20px;
  }
  
  .section-title {
    margin-bottom: 30px;
  }
  
  .section-title h2 {
    font-size: 26px;
  }
  
  .pain-points,
  .process-summary,
  .quote-box {
    padding: 25px;
  }
  
  .faq-question {
    padding: 15px 20px;
  }
  
  .faq-answer {
    padding: 15px 20px;
  }
  
  .cta-buttons .btn {
    margin: 10px;
    display: block;
    width: 80%;
    margin-left: auto;
    margin-right: auto;
  }
}

/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

.intro-section,
.process-section,
.vaccine-section,
.green-therapy-section,
.faq-section,
.prevention-cta {
  animation: fadeIn 1s ease-out;
}

.intro-text,
.challenge-card,
.principle-card,
.timeline-content,
.platform-card,
.approach-card,
.faq-item {
  animation: fadeInUp 0.8s ease-out;
}

.intro-image,
.solution-image,
.feature-image,
.evidence-card {
  animation: fadeInDown 0.8s ease-out;
}

.cta-content {
  animation: pulse 2s infinite;
}