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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #1e3a8a;
  background: linear-gradient(135deg, #dbeafe 0%, #e0e7ff 100%);
}

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

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: white;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.btn-outline {
  background: transparent;
  color: #2563eb;
  border: 2px solid #2563eb;
}

.btn-outline:hover {
  background: #2563eb;
  color: white;
}

.btn-large {
  padding: 16px 32px;
  font-size: 18px;
}

.btn-cta {
  background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
  color: #2563eb;
  padding: 20px 48px;
  font-size: 20px;
  font-weight: 700;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(255, 255, 255, 0.3);
}

.btn-cta:hover {
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(255, 255, 255, 0.4);
}

/* 导航栏 */
.header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(59, 130, 246, 0.1);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
  color: #1e3a8a;
}

.nav-icon {
  width: 32px;
  height: 32px;
  color: #2563eb;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  color: #1e40af;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}


.nav-link1 {
  color: #ffffff;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}


.nav-link:hover {
  color: #2563eb;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: #2563eb;
  margin: 3px 0;
  transition: 0.3s;
  border-radius: 2px;
}

/* 英雄区域 */
.hero {
  padding: 120px 0 80px;
  text-align: center;
}

.hero-content {
  max-width: 1000px;
  margin: 0 auto;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 24px;
  line-height: 1.2;
}

.highlight {
  display: block;
  color: #2563eb;
  margin-top: 16px;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: #1e40af;
  margin-bottom: 40px;
  line-height: 1.5;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 80px;
  flex-wrap: wrap;
}

.hero-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  margin-top: 80px;
}

.feature-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  padding: 32px;
  border-radius: 16px;
  border: 1px solid rgba(59, 130, 246, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #1e3a8a;
}

.feature-card p {
  color: #1e40af;
}

/* 通用区域样式 */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: #1e3a8a;
}

.section-header p {
  font-size: 1.25rem;
  color: #1e40af;
}

/* 痛点分析 */
.pain-points {
  padding: 80px 0;
  background: rgba(255, 255, 255, 0.5);
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  gap: 32px;
}

.pain-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 16px;
  padding: 32px;
}

.pain-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.pain-icon {
  font-size: 2rem;
}

.pain-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1e3a8a;
}

.pain-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.pain-item {
  display: flex;
  gap: 16px;
}

.pain-item-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 4px;
}

.pain-item h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: #1e3a8a;
}

.pain-item p {
  color: #1e40af;
}

/* 解决方案 */
.solution {
  padding: 80px 0;
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
  gap: 32px;
}

.solution-card {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(255, 255, 255, 0.8) 100%);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 16px;
  padding: 32px;
}

.solution-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.solution-icon {
  font-size: 2rem;
}

.solution-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #1e3a8a;
}

.solution-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.solution-feature h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: #1e3a8a;
}

.solution-feature p {
  color: #1e40af;
  margin-bottom: 12px;
}

.solution-feature ul {
  list-style: none;
  padding-left: 0;
}

.solution-feature li {
  color: #1e40af;
  margin-bottom: 4px;
  position: relative;
  padding-left: 20px;
}

.solution-feature li::before {
  content: "•";
  color: #2563eb;
  font-weight: bold;
  position: absolute;
  left: 0;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.tag {
  background: rgba(37, 99, 235, 0.1);
  color: #1e40af;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
}

.badge {
  background: #2563eb;
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-left: 8px;
}

.highlight-text {
  font-weight: 600;
  color: #1e3a8a;
}

/* 核心优势 */
.advantages {
  padding: 80px 0;
  background: rgba(255, 255, 255, 0.5);
}

.advantage-section {
  margin-bottom: 64px;
}

.advantage-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 32px;
  color: #1e3a8a;
}

.advantage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
}

.advantage-grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
}

.advantage-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 12px;
  padding: 24px;
  transition: transform 0.3s ease;
}

.advantage-card:hover {
  transform: translateY(-4px);
}

.advantage-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.advantage-card h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: #1e3a8a;
}

.advantage-card p {
  color: #1e40af;
  margin-bottom: 12px;
}

.advantage-card ul {
  list-style: none;
  padding-left: 0;
}

.advantage-card li {
  color: #1e40af;
  margin-bottom: 8px;
  position: relative;
  padding-left: 20px;
}

.advantage-card li::before {
  content: "•";
  color: #2563eb;
  font-weight: bold;
  position: absolute;
  left: 0;
}

/* 合作流程 */
.process {
  padding: 80px 0;
}

.process-steps {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.process-step {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(255, 255, 255, 0.8) 100%);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 16px;
  padding: 32px;
}

.step-content h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: #1e3a8a;
}

.step-modes h4,
.step-incentive h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: #1e3a8a;
}

.mode-item {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.mode-label {
  width: 24px;
  height: 24px;
  background: #2563eb;
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 600;
  flex-shrink: 0;
}

.mode-item h5 {
  font-weight: 600;
  margin-bottom: 4px;
  color: #1e3a8a;
}

.mode-item p {
  color: #1e40af;
  font-size: 0.875rem;
}

.profit-models {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}

.profit-item {
  background: rgba(255, 255, 255, 0.8);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.profit-item h4 {
  font-weight: 600;
  margin-bottom: 8px;
  color: #1e3a8a;
}

.profit-item p {
  color: #1e40af;
}

.operation-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 24px;
}

.operation-item h4 {
  font-weight: 600;
  margin-bottom: 8px;
  color: #1e3a8a;
}

.operation-item p {
  color: #1e40af;
}

.privacy-guarantee {
  background: rgba(59, 130, 246, 0.05);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.privacy-guarantee h4 {
  font-weight: 600;
  margin-bottom: 8px;
  color: #1e3a8a;
}

.privacy-guarantee p {
  color: #1e40af;
}

/* 风险控制 */
.risk-control {
  padding: 80px 0;
  background: rgba(255, 255, 255, 0.5);
}

.risk-section {
  margin-bottom: 64px;
}

.risk-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 32px;
  color: #1e3a8a;
}

.risk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.risk-grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
}

.risk-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 12px;
  padding: 24px;
}

.risk-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.risk-card h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: #1e3a8a;
}

.risk-card p {
  color: #1e40af;
  margin-bottom: 12px;
}

.risk-card ul {
  list-style: none;
  padding-left: 0;
}

.risk-card li {
  color: #1e40af;
  margin-bottom: 8px;
  position: relative;
  padding-left: 20px;
}

.risk-card li::before {
  content: "•";
  color: #2563eb;
  font-weight: bold;
  position: absolute;
  left: 0;
}

.lifetime-business {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(255, 255, 255, 0.8) 100%);
  padding: 32px;
  border-radius: 16px;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.lifetime-business h4 {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 24px;
  color: #1e3a8a;
}

.lifetime-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 24px;
}

.lifetime-grid h5 {
  font-weight: 600;
  margin-bottom: 8px;
  color: #1e3a8a;
}

.lifetime-grid p {
  color: #1e40af;
}

/* 行动号召 */
.cta {
  padding: 80px 0;
  background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  color: white;
}

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

.cta h2 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta p {
  font-size: 1.25rem;
  margin-bottom: 48px;
  color: rgba(255, 255, 255, 0.9);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  margin-bottom: 48px;
}

.contact-card {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 32px;
  text-align: center;
  color: #1e3a8a;
}

.contact-icon {
  font-size: 4rem;
  margin-bottom: 16px;
}

.contact-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-card p {
  color: #1e40af;
  margin-bottom: 16px;
}

.qr-placeholder {
  width: 120px;
  height: 120px;
  background: #e5e7eb;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  color: #6b7280;
  font-size: 0.875rem;
}

.phone-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: #2563eb;
}

.cta-buttons {
  margin-top: 32px;
}

.cta-note {
  margin-top: 16px;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.8);
}

/* 页脚 */
.footer {
  background: #1e3a8a;
  color: white;
  padding: 48px 0 24px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 32px;
}

.footer-brand {
  max-width: 400px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.footer-icon {
  width: 32px;
  height: 32px;
  color: #60a5fa;
}

.footer-logo span {
  font-size: 1.25rem;
  font-weight: 700;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 16px;
}

.footer-slogan {
  color: rgba(147, 197, 253, 1);
  font-weight: 500;
}

.footer-links h4,
.footer-contact h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-links ul,
.footer-contact ul {
  list-style: none;
}

.footer-links li,
.footer-contact li {
  margin-bottom: 8px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-contact li {
  color: rgba(255, 255, 255, 0.8);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 24px;
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 20px;
    gap: 20px;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    border-top: 1px solid rgba(59, 130, 246, 0.1);
  }

  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
  }

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

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
  }

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

  .hero-subtitle {
    font-size: 1.25rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-features {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

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

  .advantage-grid-2 {
    grid-template-columns: 1fr;
  }

  .process-step {
    flex-direction: column;
    gap: 16px;
  }

  .step-number {
    align-self: flex-start;
  }

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

  .risk-grid-2 {
    grid-template-columns: 1fr;
  }

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

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .section-header h2 {
    font-size: 2rem;
  }

  .advantage-title {
    font-size: 1.5rem;
  }

  .risk-title {
    font-size: 1.5rem;
  }

  .cta h2 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

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

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

  .hero-subtitle {
    font-size: 1.125rem;
  }

  .btn-large {
    padding: 14px 24px;
    font-size: 16px;
  }

  .btn-cta {
    padding: 16px 32px;
    font-size: 18px;
  }

  .section-header h2 {
    font-size: 1.75rem;
  }

  .section-header p {
    font-size: 1.125rem;
  }

  .advantage-title,
  .risk-title {
    font-size: 1.25rem;
  }

  .cta h2 {
    font-size: 1.75rem;
  }

  .profit-models {
    grid-template-columns: 1fr;
  }

  .operation-details {
    grid-template-columns: 1fr;
  }
}

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

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* 滚动行为 */
html {
  scroll-behavior: smooth;
}

/* 选中文本样式 */
::selection {
  background: rgba(37, 99, 235, 0.2);
  color: #1e3a8a;
}

/* 焦点样式 */
button:focus,
a:focus {
  outline: 2px solid #2563eb;
  outline-offset: 2px;
}