/* 基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #fff;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 导航栏 */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  height: 40px;
  width: auto;
}

.company-name {
  font-size: 18px;
  font-weight: 600;
  color: #2c5aa0;
}

.nav-menu {
  display: flex;
  gap: 30px;
}

.nav-link {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: #2c5aa0;
}

.nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 50%;
  background-color: #2c5aa0;
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.bar {
  width: 25px;
  height: 3px;
  background-color: #333;
  margin: 3px 0;
  transition: 0.3s;
}

/* 英雄区域 */
.hero {
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  overflow: hidden;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
  background: linear-gradient(45deg, #fff, #f0f8ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.3rem;
  margin-bottom: 30px;
  opacity: 0.9;
}

.hero-highlight {
  background: rgba(255, 255, 255, 0.1);
  padding: 25px;
  border-radius: 15px;
  margin-bottom: 40px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-highlight p {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.hero-highlight strong {
  color: #ffd700;
  font-weight: 600;
}

.hero-cta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.cta-button {
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  display: inline-block;
}

.cta-button.primary {
  background: #ffd700;
  color: #333;
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.cta-button.primary:hover {
  background: #ffed4e;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.cta-button.secondary {
  background: transparent;
  color: white;
  border: 2px solid white;
}

.cta-button.secondary:hover {
  background: white;
  color: #333;
  transform: translateY(-2px);
}

.hero-image {
  display: flex;
  justify-content: center;
}

.qr-codes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.qr-item {
  text-align: center;
  background: rgba(255, 255, 255, 0.1);
  padding: 20px;
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: transform 0.3s ease;
}

.qr-item:hover {
  transform: translateY(-5px);
}

.qr-item img {
  width: 120px;
  height: 120px;
  border-radius: 10px;
  margin-bottom: 10px;
}

.qr-item span {
  display: block;
  font-weight: 500;
  color: #fff;
}

/* 区域标题 */
.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: #2c5aa0;
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  width: 80px;
  height: 4px;
  background: linear-gradient(45deg, #667eea, #764ba2);
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  font-size: 1.2rem;
  color: #666;
  margin-bottom: 50px;
}

/* 感恩回馈区域 */
.benefits {
  padding: 80px 0;
  background: #f8fafc;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.benefit-card {
  background: white;
  padding: 40px 30px;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: 1px solid #e2e8f0;
}

.benefit-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.benefit-icon {
  font-size: 3rem;
  margin-bottom: 20px;
  display: block;
}

.benefit-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: #2c5aa0;
}

.benefit-card p {
  color: #666;
  line-height: 1.6;
}

/* 新增权益详情列表样式 */
.benefit-details {
  list-style: none;
  padding: 0;
  margin-top: 15px;
  text-align: left;
}

.benefit-details li {
  padding: 8px 0;
  padding-left: 25px;
  position: relative;
  color: #555;
  font-size: 0.95rem;
}

.benefit-details li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #667eea;
  font-weight: bold;
  font-size: 1.1rem;
}

/* 项目覆盖区域 */
.projects {
  padding: 80px 0;
  background: white;
}

/* 互联网项目痛点样式 */
.pain-points {
  background: #f8f9fa;
  border-radius: 12px;
  padding: 30px;
  margin-bottom: 50px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.pain-points-title {
  text-align: center;
  color: #333;
  margin-bottom: 30px;
  font-size: 1.8rem;
}

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

.pain-point-item {
  background: white;
  border-radius: 8px;
  padding: 18px 15px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.pain-point-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.pain-point-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
  text-align: center;
}

.pain-point-item h4 {
  color: #4a5568;
  margin-bottom: 10px;
  text-align: center;
  font-size: 1.2rem;
}

.pain-point-item p {
  color: #718096;
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 0;
  flex-grow: 1;
}

/* 解决方案对比区域样式 */
.solution-comparison {
  margin-top: 40px;
  background: #f0f4ff;
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.solution-title {
  text-align: center;
  color: #333;
  margin-bottom: 30px;
  font-size: 1.8rem;
}

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

.solution-item {
  background: white;
  border-radius: 8px;
  padding: 22px 18px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
  border-left: 4px solid #667eea;
}

.solution-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.solution-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
  text-align: center;
  color: #667eea;
}

.solution-item h4 {
  color: #4a5568;
  margin-bottom: 12px;
  text-align: center;
  font-size: 1.3rem;
  font-weight: 600;
}

.solution-item p {
  color: #718096;
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 0;
  flex-grow: 1;
}

.pain-points-solution {
  text-align: center;
  margin-top: 25px;
  font-weight: 500;
  color: #4a5568;
  font-size: 1.1rem;
}

/* 响应式调整 */
@media (max-width: 1200px) {
  .pain-points-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}

@media (max-width: 992px) {
  .pain-points-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .pain-points {
    padding: 20px;
  }
  
  .pain-points-grid {
    grid-template-columns: 1fr;
  }
  
  .pain-point-item {
    padding: 15px;
  }
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  margin: 50px 0;
}

.project-item {
  text-align: center;
  padding: 30px 20px;
  background: #f8fafc;
  border-radius: 15px;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.project-item:hover {
  background: white;
  border-color: #667eea;
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(102, 126, 234, 0.1);
}

.project-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
  display: block;
}

.project-item h4 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #2c5aa0;
}

.projects-note {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  padding: 30px;
  border-radius: 15px;
  text-align: center;
  margin-top: 40px;
}

.projects-note p {
  font-size: 1.1rem;
  margin: 0;
}

/* 长期保障区域 */
.guarantee {
  padding: 80px 0;
  background: #f8fafc;
}

.guarantee-content {
  margin-top: 50px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-gap: 20px;
}

.guarantee-item {
  background: white;
  padding: 30px;
  border-radius: 20px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  border-left: 5px solid #667eea;
}

.guarantee-item h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: #2c5aa0;
}

.guarantee-item p {
  color: #666;
  line-height: 1.7;
  margin-bottom: 15px;
}

.guarantee-item ul {
  list-style: none;
  padding-left: 0;
}

.guarantee-item li {
  color: #666;
  padding: 8px 0;
  padding-left: 25px;
  position: relative;
}

.guarantee-item li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #667eea;
  font-weight: bold;
}

/* 联系我们区域 */
.contact {
  padding: 80px 0;
  background: white;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-top: 50px;
}

.company-info h3 {
  font-size: 1.8rem;
  font-weight: 600;
  color: #2c5aa0;
  margin-bottom: 30px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  margin-bottom: 20px;
  padding: 15px 0;
  border-bottom: 1px solid #f1f5f9;
}

.contact-label {
  font-weight: 600;
  color: #2c5aa0;
  min-width: 120px;
  flex-shrink: 0;
}

.contact-value {
  color: #666;
  flex: 1;
}

.qr-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-qr .qr-item {
  background: #f8fafc;
  padding: 20px;
  border-radius: 15px;
  text-align: center;
  border: 2px solid #e2e8f0;
  transition: all 0.3s ease;
}

.contact-qr .qr-item:hover {
  border-color: #667eea;
  transform: translateY(-3px);
}

.contact-qr .qr-item img {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  margin-bottom: 10px;
}

.contact-qr .qr-item span {
  display: block;
  font-weight: 500;
  color: #2c5aa0;
}

.app-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 140px;
}

.app-download {
  text-align: center;
}

.app-download span {
  font-size: 1.1rem;
  font-weight: 600;
  color: #2c5aa0;
  display: block;
  margin-bottom: 5px;
}

.app-download small {
  color: #999;
  font-size: 0.9rem;
}

/* 新增成功数据展示样式 */
.success-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 25px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  color: #ffd700;
  margin-bottom: 5px;
  transition: color 0.3s ease, transform 0.5s ease;
}

#experience-days {
  position: relative;
  text-shadow: 0 0 5px rgba(255, 215, 0, 0.5);
  transition: opacity 0.5s ease, color 0.3s ease;
}

.stat-label {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* 页脚 */
.footer {
  background: #1a202c;
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  padding-bottom: 30px;
  border-bottom: 1px solid #2d3748;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 15px;
}

.footer-logo-img {
  height: 40px;
  width: auto;
}

.footer-logo span {
  font-size: 1.2rem;
  font-weight: 600;
}

.footer-links {
  display: flex;
  gap: 30px;
}

.footer-links a {
  color: #cbd5e0;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: white;
}

.footer-disclaimer {
  background: #2d3748;
  padding: 30px;
  border-radius: 10px;
  margin-bottom: 30px;
}

.footer-disclaimer p {
  margin-bottom: 10px;
  line-height: 1.6;
  color: #e2e8f0;
}

.footer-disclaimer strong {
  color: #ffd700;
}

.footer-warning {
  background: #744210;
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 30px;
  border-left: 4px solid #ffd700;
}

.footer-warning p {
  color: #fef3cd;
  margin: 0;
  font-weight: 500;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid #2d3748;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-icp {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.icp-icon {
  width: 20px;
  height: 20px;
}

.separator {
  color: #4a5568;
}

.footer-copyright {
  color: #a0aec0;
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: #667eea;
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.5rem;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
  transition: all 0.3s ease;
  z-index: 1000;
}

.back-to-top:hover {
  background: #5a67d8;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.back-to-top.show {
  display: flex;
}

/* 新增代理商扶持政策区域样式 */
.support-policy {
  padding: 80px 0;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.policy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.policy-card {
  background: white;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: 1px solid #e2e8f0;
}

.policy-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.policy-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 25px 30px;
  display: flex;
  align-items: center;
  gap: 15px;
}

.policy-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.policy-header h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin: 0;
}

.policy-content {
  padding: 30px;
}

.policy-content h4 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #2c5aa0;
  margin-bottom: 20px;
}

.policy-content ul {
  list-style: none;
  padding: 0;
  margin-bottom: 20px;
}

.policy-content li {
  padding: 10px 0;
  padding-left: 25px;
  position: relative;
  color: #666;
  line-height: 1.6;
  border-bottom: 1px solid #f1f5f9;
}

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

.policy-content li::before {
  content: "▶";
  position: absolute;
  left: 0;
  color: #667eea;
  font-size: 0.8rem;
}

.policy-content strong {
  color: #2c5aa0;
  font-weight: 600;
}

.policy-highlight {
  background: linear-gradient(135deg, #ffd700, #ffed4e);
  color: #333;
  padding: 15px 20px;
  border-radius: 10px;
  text-align: center;
  font-weight: 600;
  margin-top: 20px;
}

.policy-highlight span {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

/* 新增成功案例区域样式 */
.success-cases {
  padding: 80px 0;
  background: white;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

/* 移动端成功案例布局 */
@media (max-width: 768px) {
  .cases-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  
  .case-card {
    width: 100%;
    margin: 0 0 15px 0;
  }
}

.case-card {
  background: #f8fafc;
  border-radius: 20px;
  padding: 30px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

@media (max-width: 768px) {
  .case-card {
    padding: 20px;
    margin-bottom: 15px;
    border-left: 4px solid #667eea;
  }
}

.case-card:hover {
  transform: translateY(-5px);
  border-color: #667eea;
  box-shadow: 0 15px 35px rgba(102, 126, 234, 0.15);
}

.case-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.case-avatar {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.2rem;
}

.case-info h4 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #2c5aa0;
  margin-bottom: 5px;
}

.case-info span {
  color: #666;
  font-size: 0.95rem;
}

.case-content p {
  color: #555;
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}

.case-stats {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.case-stats span {
  background: white;
  padding: 8px 15px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #2c5aa0;
  border: 1px solid #e2e8f0;
}

/* 新增为什么选择南极月区域样式 */
.why-choose {
  padding: 80px 0;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.choose-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 60px;
  margin-top: 50px;
  align-items: start;
}

.choose-item {
  display: flex;
  gap: 25px;
  margin-bottom: 40px;
  align-items: flex-start;
}

.choose-number {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.choose-text h3 {
  font-size: 1.4rem;
  font-weight: 600;
  color: #2c5aa0;
  margin-bottom: 15px;
}

.choose-text p {
  color: #666;
  line-height: 1.7;
}

.choose-right {
  position: sticky;
  top: 100px;
}

.choose-highlight {
  background: white;
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  border: 2px solid #667eea;
}

.choose-highlight h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #2c5aa0;
  margin-bottom: 25px;
  text-align: center;
}

.choose-highlight ul {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
}

.choose-highlight li {
  padding: 12px 0;
  color: #555;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
}

.choose-cta {
  text-align: center;
}

.choose-cta .cta-button {
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  display: inline-block;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.choose-cta .cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: white;
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    padding: 20px 0;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .hero-cta {
    justify-content: center;
  }

  .cta-button {
    padding: 12px 25px;
    font-size: 1rem;
  }

  .qr-codes {
    grid-template-columns: 1fr;
    max-width: 200px;
    margin: 0 auto;
  }

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

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

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pain-points-grid,
  .solution-grid {
    grid-template-columns: 1fr;
  }
  
  .pain-points {
    padding: 20px 15px;
  }
  
  .solution-comparison {
    padding: 20px 15px;
    margin-top: 30px;
  }
  
  .pain-points-title,
  .solution-title {
    font-size: 1.6rem;
  }
  
  .pain-point-item,
  .solution-item {
    padding: 15px 12px;
  }

  .contact-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-content {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .footer-icp {
    justify-content: center;
  }

  .success-stats {
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
  }

  .stat-number {
    font-size: 1.6rem;
  }
  
  #experience-days {
    font-size: 1.5rem;
  }

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

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

  .choose-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .choose-right {
    position: static;
  }

  .choose-item {
    gap: 20px;
  }

  .choose-number {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .policy-header {
    padding: 20px 25px;
  }

  .policy-content {
    padding: 25px;
  }

  .case-card {
    padding: 25px;
  }

  .choose-highlight {
    padding: 30px 25px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .hero {
    padding: 100px 0 60px;
  }

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

  .hero-highlight {
    padding: 20px;
  }

  .cta-button {
    width: 100%;
    text-align: center;
  }

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

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

  .benefit-card,
  .guarantee-item {
    padding: 30px 20px;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
  }

  .success-stats {
    gap: 15px;
    padding: 15px;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .stat-label {
    font-size: 0.8rem;
  }

  .policy-header {
    padding: 15px 20px;
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }

  .policy-content {
    padding: 20px;
  }

  .case-header {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }

  .case-avatar {
    width: 50px;
    height: 50px;
    font-size: 1rem;
  }

  .case-stats {
    justify-content: center;
  }

  .choose-item {
    flex-direction: column;
    text-align: center;
    gap: 15px;
  }

  .choose-highlight {
    padding: 25px 20px;
  }
}

/* 响应式样式 */
@media (max-width: 1200px) {
  .guarantee-content {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  .guarantee-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .guarantee-content {
    grid-template-columns: 1fr;
  }
  
  .guarantee-item {
    padding: 25px;
  }
}

/* 动画效果 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.benefit-card,
.project-item,
.guarantee-item {
  animation: fadeInUp 0.6s ease-out;
}

/* 滚动平滑 */
html {
  scroll-behavior: smooth;
}

/* 选中文本样式 */
::selection {
  background: #667eea;
  color: white;
}

::-moz-selection {
  background: #667eea;
  color: white;
}