body {
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
  margin: 0;
  background: #f8f9fb;
  color: #222;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #111;
  color: #fff;
  padding: 16px 24px;
  font-size: 18px;
}

.hero {
  background: linear-gradient(90deg, #1e293b 60%, #f8f9fb 100%);
  color: #fff;
  padding: 48px 24px 32px 24px;
  text-align: center;
}
.hero .highlight {
  color: #ff0050;
}
.hero button {
  margin: 16px 8px 0 8px;
  padding: 12px 32px;
  border: none;
  border-radius: 4px;
  background: #ff0050;
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  transition: background 0.2s;
}
.hero button:hover {
  background: #e60046;
}

.pain-points {
  background: #fff;
  margin: 32px 0;
  padding: 32px 0;
  text-align: center;
}
.pain-points ul {
  list-style: none;
  padding: 0;
  margin: 24px 0 0 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
}
.pain-points li {
  background: #f1f5f9;
  border-radius: 8px;
  padding: 18px 32px;
  font-size: 18px;
  min-width: 180px;
}

.materials-showcase {
  padding: 32px 0;
  background: #f8f9fb;
  text-align: center;
}
.materials-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
  margin-top: 24px;
}
.material-card {
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(30,41,59,0.06);
  padding: 24px 16px;
  width: 280px;
  text-align: left;
}
.material-card h3 {
  color: #ff0050;
  margin-bottom: 16px;
  text-align: center;
  font-size: 18px;
}
.course-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.course-item {
  background: #f8f9fb;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  color: #333;
  border-left: 3px solid #ff0050;
}

.pricing {
  background: #fff;
  padding: 40px 0;
  text-align: center;
}
.pricing-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: center;
  margin-top: 24px;
}
.pricing-card {
  background: #f1f5f9;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(30,41,59,0.06);
  padding: 32px 24px;
  width: 260px;
  text-align: center;
  position: relative;
}
.pricing-card.premium {
  border: 2px solid #ff0050;
}
.pricing-card .price {
  font-size: 32px;
  color: #ff0050;
  margin: 12px 0 16px 0;
}
.pricing-card .original-price {
  color: #888;
  font-size: 16px;
  text-decoration: line-through;
  margin-left: 8px;
}
.pricing-card button {
  margin-top: 18px;
  padding: 10px 28px;
  border: none;
  border-radius: 4px;
  background: #ff0050;
  color: #fff;
  font-size: 17px;
  cursor: pointer;
  transition: background 0.2s;
}
.pricing-card button:hover {
  background: #e60046;
}

.contact {
  background: #fff;
  padding: 40px 0 32px 0;
  text-align: center;
}
.contact-info {
  margin-top: 18px;
  font-size: 18px;
}
.qr-placeholder {
  background: #e5e7eb;
  color: #888;
  border-radius: 8px;
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 18px auto 0 auto;
  font-size: 14px;
}

.modal {
  position: fixed;
  left: 0; top: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.modal-content {
  background: #fff;
  border-radius: 10px;
  padding: 32px 24px;
  min-width: 300px;
  text-align: center;
  position: relative;
}
.modal button {
  margin-top: 18px;
  padding: 8px 24px;
  border: none;
  border-radius: 4px;
  background: #ff0050;
  color: #fff;
  font-size: 16px;
  cursor: pointer;
}

.modal-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 18px;
}

.btn-customer-service {
  background: #10B981 !important;
  color: #fff;
  padding: 8px 20px;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-customer-service:hover {
  background: #059669 !important;
}

.service-qr {
  text-align: center;
  margin: 20px 0;
}

.qr-tip {
  color: #666;
  font-size: 14px;
  margin-top: 8px;
  text-align: center;
  font-weight: 500;
}

.service-tip {
  color: #666;
  font-size: 14px;
  margin-top: 12px;
  line-height: 1.5;
}

.service-steps {
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
}

.step-number {
  background: #ff0050;
  color: #fff;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: bold;
  flex-shrink: 0;
}

.step-text {
  font-size: 14px;
  color: #333;
}

@media (max-width: 800px) {
  .materials-grid, .pricing-grid {
    flex-direction: column;
    align-items: center;
  }
  .navbar {
    flex-direction: column;
    font-size: 16px;
    padding: 12px 8px;
  }
  .hero {
    padding: 32px 8px 24px 8px;
  }
  .pain-points ul {
    flex-direction: column;
    gap: 16px;
  }
}

.institutions {
  background: #fff;
  padding: 40px 0;
  text-align: center;
}
.section-subtitle {
  color: #666;
  font-size: 18px;
  margin-bottom: 32px;
}
.institutions-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
  margin-bottom: 32px;
}
.institution-card {
  background: #f8f9fb;
  border-radius: 10px;
  padding: 24px 20px;
  width: 280px;
  text-align: center;
  border: 1px solid #e5e7eb;
}
.institution-logo {
  margin-bottom: 16px;
}
.logo-svg {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
.institution-card h3 {
  color: #1e293b;
  margin-bottom: 16px;
  font-size: 18px;
}
.course-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.content-item {
  background: #fff;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 14px;
  color: #333;
  border-left: 3px solid #3b82f6;
}
.institutions-note {
  background: #fef3c7;
  border: 1px solid #f59e0b;
  border-radius: 8px;
  padding: 20px;
  margin-top: 24px;
}
.price-highlight {
  color: #ff0050;
  font-weight: bold;
  font-size: 20px;
}

.industry-prospects {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  padding: 48px 0;
  text-align: center;
}
.prospects-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.prospects-header h2 {
  font-size: 32px;
  margin-bottom: 12px;
  font-weight: 700;
}
.prospects-subtitle {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 40px;
}
.prospects-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
}
.prospect-card {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 24px 20px;
  width: 250px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.prospect-icon {
  font-size: 32px;
  margin-bottom: 12px;
}
.prospect-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
  opacity: 0.9;
}
.prospect-number {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #ffd700;
}
.prospect-card p {
  font-size: 14px;
  opacity: 0.8;
  line-height: 1.4;
}

.policy-support {
  background: #f8f9fb;
  padding: 48px 0;
  text-align: center;
}
.policy-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.policy-support h2 {
  font-size: 28px;
  margin-bottom: 40px;
  color: #1e293b;
}
.policy-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
}
.policy-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px 20px;
  width: 280px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  border-left: 4px solid #3b82f6;
}
.policy-icon {
  font-size: 32px;
  margin-bottom: 16px;
}
.policy-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: #1e293b;
}
.policy-card p {
  font-size: 14px;
  line-height: 1.6;
  color: #666;
}

.success-stories {
  background: #fff;
  padding: 48px 0;
  text-align: center;
}
.stories-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.success-stories h2 {
  font-size: 28px;
  margin-bottom: 40px;
  color: #1e293b;
}
.stories-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
}
.story-card {
  background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%);
  color: #fff;
  border-radius: 12px;
  padding: 24px 20px;
  width: 300px;
  position: relative;
  overflow: hidden;
}
.story-highlight {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  display: inline-block;
  margin-bottom: 16px;
}
.story-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}
.story-card p {
  font-size: 14px;
  line-height: 1.6;
  opacity: 0.9;
}

@media (max-width: 800px) {
  .prospects-grid, .policy-grid, .stories-grid {
    flex-direction: column;
    align-items: center;
  }
  .prospect-card, .policy-card, .story-card {
    width: 100%;
    max-width: 320px;
  }
  .prospects-header h2 {
    font-size: 24px;
  }
  .policy-support h2, .success-stories h2 {
    font-size: 24px;
  }
}

.student-results {
  background: #fff;
  padding: 48px 0;
  text-align: center;
}
.student-results h2 {
  font-size: 28px;
  margin-bottom: 12px;
  color: #1e293b;
}
.results-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
  margin: 32px 0;
}
.result-card {
  background: #f8f9fb;
  border-radius: 12px;
  padding: 24px;
  width: 320px;
  text-align: left;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  border: 1px solid #e5e7eb;
}
.result-header {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
  gap: 12px;
}
.student-avatar {
  flex-shrink: 0;
}
.avatar-emoji {
  background: #f8f9fb;
  border: 2px solid #e5e7eb;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
.student-info {
  flex: 1;
}
.student-info h4 {
  font-size: 16px;
  margin: 0 0 4px 0;
  color: #1e293b;
}
.student-info span {
  font-size: 14px;
  color: #666;
}
.result-badge {
  background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%);
  color: #fff;
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 12px;
  font-weight: 600;
}
.result-content {
  margin-bottom: 16px;
}
.result-content p {
  font-size: 14px;
  line-height: 1.6;
  color: #333;
  font-style: italic;
}
.result-stats {
  display: flex;
  gap: 16px;
  justify-content: space-between;
}
.stat-item {
  text-align: center;
  flex: 1;
}
.stat-number {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: #ff0050;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 12px;
  color: #666;
}

.results-summary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  border-radius: 12px;
  padding: 32px;
  margin-top: 32px;
}
.summary-stats {
  display: flex;
  justify-content: space-around;
  gap: 24px;
}
.summary-item {
  text-align: center;
}
.summary-number {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #ffd700;
}
.summary-label {
  font-size: 16px;
  opacity: 0.9;
}

@media (max-width: 800px) {
  .results-grid {
    flex-direction: column;
    align-items: center;
  }
  .result-card {
    width: 100%;
    max-width: 320px;
  }
  .result-stats {
    flex-direction: column;
    gap: 12px;
  }
  .summary-stats {
    flex-direction: column;
    gap: 16px;
  }
  .student-results h2 {
    font-size: 24px;
  }
}

/* 移动端响应式设计 */
@media (max-width: 768px) {
  /* 导航栏 */
  .navbar {
    flex-direction: column;
    gap: 12px;
    padding: 12px 16px;
    font-size: 16px;
  }
  .nav-logo {
    font-size: 20px;
  }
  .nav-contact {
    font-size: 14px;
  }

  /* 主横幅 */
  .hero {
    padding: 32px 16px 24px 16px;
  }
  .hero h1 {
    font-size: 24px;
    line-height: 1.3;
  }
  .hero p {
    font-size: 16px;
    margin: 16px 0;
  }
  .hero button {
    display: block;
    width: 100%;
    margin: 12px 0;
    padding: 14px 24px;
    font-size: 16px;
  }

  /* 痛点分析 */
  .pain-points {
    padding: 24px 16px;
    margin: 24px 0;
  }
  .pain-points h2 {
    font-size: 22px;
  }
  .pain-points ul {
    flex-direction: column;
    gap: 16px;
  }
  .pain-points li {
    padding: 16px 20px;
    font-size: 16px;
    min-width: auto;
  }

  /* 资料展示 */
  .materials-showcase {
    padding: 24px 16px;
  }
  .materials-showcase h2 {
    font-size: 22px;
  }
  .materials-grid {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
  .material-card {
    width: 100%;
    max-width: 320px;
    padding: 20px 16px;
  }
  .material-card h3 {
    font-size: 16px;
  }
  .course-item {
    font-size: 13px;
    padding: 10px 12px;
  }

  /* 知名机构 */
  .institutions {
    padding: 24px 16px;
  }
  .institutions h2 {
    font-size: 22px;
  }
  .section-subtitle {
    font-size: 16px;
  }
  .institutions-grid {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
  .institution-card {
    width: 100%;
    max-width: 320px;
    padding: 20px 16px;
  }
  .institution-card h3 {
    font-size: 16px;
  }
  .content-item {
    font-size: 13px;
    padding: 10px 12px;
  }

  /* 行业前景 */
  .industry-prospects {
    padding: 32px 16px;
  }
  .prospects-header h2 {
    font-size: 22px;
  }
  .prospects-subtitle {
    font-size: 16px;
  }
  .prospects-grid {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
  .prospect-card {
    width: 100%;
    max-width: 280px;
    padding: 20px 16px;
  }
  .prospect-number {
    font-size: 24px;
  }
  .prospect-card p {
    font-size: 13px;
  }

  /* 政策支持 */
  .policy-support {
    padding: 32px 16px;
  }
  .policy-support h2 {
    font-size: 22px;
  }
  .policy-grid {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
  .policy-card {
    width: 100%;
    max-width: 320px;
    padding: 20px 16px;
  }
  .policy-card h3 {
    font-size: 16px;
  }
  .policy-card p {
    font-size: 14px;
  }

  /* 成功案例 */
  .success-stories {
    padding: 32px 16px;
  }
  .success-stories h2 {
    font-size: 22px;
  }
  .stories-grid {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
  .story-card {
    width: 100%;
    max-width: 320px;
    padding: 20px 16px;
  }
  .story-card h3 {
    font-size: 16px;
  }
  .story-card p {
    font-size: 14px;
  }

  /* 定价区域 */
  .pricing {
    padding: 32px 16px;
  }
  .pricing h2 {
    font-size: 22px;
  }
  .pricing-grid {
    flex-direction: column;
    align-items: center;
    gap: 24px;
  }
  .pricing-card {
    width: 100%;
    max-width: 320px;
    padding: 24px 20px;
  }
  .pricing-card .price {
    font-size: 28px;
  }
  .pricing-card button {
    width: 100%;
    padding: 12px 24px;
    font-size: 16px;
  }

  /* 学员效果 */
  .student-results {
    padding: 32px 16px;
  }
  .student-results h2 {
    font-size: 22px;
  }
  .results-grid {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
  .result-card {
    width: 100%;
    max-width: 320px;
    padding: 20px 16px;
  }
  .result-stats {
    flex-direction: column;
    gap: 12px;
  }
  .stat-item {
    padding: 8px 0;
  }
  .stat-number {
    font-size: 16px;
  }
  .stat-label {
    font-size: 11px;
  }
  .results-summary {
    padding: 24px 16px;
    margin-top: 24px;
  }
  .summary-stats {
    flex-direction: column;
    gap: 16px;
  }
  .summary-number {
    font-size: 28px;
  }
  .summary-label {
    font-size: 14px;
  }

  /* 弹窗 */
  .modal-content {
    margin: 20px;
    padding: 24px 20px;
    min-width: auto;
    width: calc(100% - 40px);
  }
  .modal-content h3 {
    font-size: 20px;
  }
  .qr-placeholder {
    width: 120px;
    height: 120px;
    font-size: 14px;
  }
  .qr-img {
    width: 120px;
    height: 120px;
  }
  .modal-buttons {
    flex-direction: column;
    gap: 8px;
  }
  .btn-customer-service {
    width: 100%;
    padding: 12px 20px;
    font-size: 16px;
  }
  .service-steps {
    gap: 8px;
  }
  .step-item {
    gap: 8px;
  }
  .step-text {
    font-size: 13px;
  }
}

/* 超小屏幕适配 */
@media (max-width: 480px) {
  .hero h1 {
    font-size: 20px;
  }
  .hero p {
    font-size: 14px;
  }
  .hero button {
    font-size: 15px;
    padding: 12px 20px;
  }
  
  .pain-points h2,
  .materials-showcase h2,
  .institutions h2,
  .prospects-header h2,
  .policy-support h2,
  .success-stories h2,
  .pricing h2,
  .student-results h2 {
    font-size: 20px;
  }
  
  .material-card,
  .institution-card,
  .prospect-card,
  .policy-card,
  .story-card,
  .pricing-card,
  .result-card {
    padding: 16px 12px;
  }
  
  .course-item,
  .content-item {
    font-size: 12px;
    padding: 8px 10px;
  }
  
  .modal-content {
    margin: 16px;
    padding: 20px 16px;
  }
}

/* 横屏模式优化 */
@media (max-width: 768px) and (orientation: landscape) {
  .hero {
    padding: 20px 16px;
  }
  .hero h1 {
    font-size: 20px;
  }
  .prospects-grid,
  .policy-grid,
  .stories-grid {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .prospect-card,
  .policy-card,
  .story-card {
    width: calc(50% - 12px);
    min-width: 200px;
  }
}

.qr-image {
  display: flex;
  justify-content: center;
  margin: 18px 0;
}

.qr-img {
  width: 140px;
  height: 140px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  object-fit: cover;
}

/* 固定悬浮按钮 */
.floating-button {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%);
  color: #fff;
  border-radius: 50px;
  padding: 16px 24px;
  box-shadow: 0 4px 20px rgba(255, 107, 107, 0.3);
  cursor: pointer;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  animation: float 2s ease-in-out infinite;
}

.floating-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255, 107, 107, 0.4);
}

.floating-button:active {
  transform: translateY(0);
}

.floating-icon {
  font-size: 20px;
  animation: bounce 1s ease-in-out infinite;
}

.floating-text {
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
}

/* 悬浮动画 */
@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-5px);
  }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-3px);
  }
  60% {
    transform: translateY(-2px);
  }
}

/* 移动端悬浮按钮 */
@media (max-width: 768px) {
  .floating-button {
    bottom: 20px;
    right: 20px;
    padding: 12px 20px;
    border-radius: 40px;
  }
  
  .floating-icon {
    font-size: 18px;
  }
  
  .floating-text {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .floating-button {
    bottom: 15px;
    right: 15px;
    padding: 10px 16px;
  }
  
  .floating-text {
    font-size: 13px;
  }
}