/* 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, "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #ffffff;
  scroll-behavior: smooth;
}

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

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

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 30px rgba(0, 0, 0, 0.15);
}

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

.nav-logo h2 {
  color: #1e40af;
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: #374151;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: #1e40af;
}

.nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 50%;
  background: linear-gradient(90deg, #3b82f6, #1e40af);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

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

.cta-button {
  background: linear-gradient(135deg, #3b82f6, #1e40af);
  color: white !important;
  padding: 10px 20px;
  border-radius: 25px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.cta-button::after {
  display: none;
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 5px;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: #1e40af;
  margin: 3px 0;
  transition: 0.3s;
  border-radius: 2px;
}

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

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

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

/* 英雄区域 */
.hero {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 50%, #bfdbfe 100%);
  padding: 120px 0 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e0e7ff" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  color: #1f2937;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.highlight {
  color: #1e40af;
  position: relative;
  background: linear-gradient(135deg, #3b82f6, #1e40af);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.highlight::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #3b82f6, #1e40af);
  border-radius: 2px;
  animation: underlineExpand 1s ease-out 0.5s both;
}

@keyframes underlineExpand {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #6b7280;
  margin-bottom: 2rem;
  line-height: 1.6;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-features {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: white;
  padding: 0.75rem 1.25rem;
  border-radius: 25px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  font-weight: 500;
}

.feature-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.feature-icon {
  font-size: 1.25rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  animation: fadeInUp 0.8s ease-out 0.9s both;
}

.primary-button {
  background: linear-gradient(135deg, #3b82f6, #1e40af);
  color: white;
  border: none;
  padding: 15px 30px;
  border-radius: 30px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
  position: relative;
  overflow: hidden;
}

.primary-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.primary-button:hover::before {
  left: 100%;
}

.primary-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.primary-button.large {
  padding: 18px 40px;
  font-size: 1.2rem;
}

.secondary-button {
  background: transparent;
  color: #1e40af;
  border: 2px solid #1e40af;
  padding: 13px 28px;
  border-radius: 30px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.secondary-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: #1e40af;
  transition: width 0.3s ease;
  z-index: -1;
}

.secondary-button:hover::before {
  width: 100%;
}

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

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight 1s ease-out 0.5s both;
}

.phone-mockup {
  width: 300px;
  height: 600px;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  border-radius: 30px;
  padding: 20px;
  box-shadow: 0 20px 60px rgba(30, 64, 175, 0.3);
  position: relative;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: white;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.phone-screen::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: #e5e7eb;
  border-radius: 2px;
}

.qr-demo {
  text-align: center;
}

.qr-code {
  width: 150px;
  height: 150px;
  background: linear-gradient(45deg, #f3f4f6, #e5e7eb);
  border: 2px solid #d1d5db;
  border-radius: 10px;
  margin-bottom: 1rem;
  position: relative;
  animation: pulse 2s ease-in-out infinite;
}

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

.qr-code: {
  content: "";
  /*content: "📱";*/
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 3rem;
}

/* 项目价值 */
.value-proposition {
  padding: 100px 0;
  background: white;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #3b82f6, #1e40af);
  border-radius: 2px;
}

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

.value-card {
  background: white;
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  border: 1px solid #e5e7eb;
  position: relative;
  overflow: hidden;
}

.value-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #3b82f6, #1e40af);
}

.value-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.value-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

.value-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 1.5rem;
  text-align: center;
}

.value-card ul {
  list-style: none;
}

.value-card li {
  padding: 0.5rem 0;
  color: #6b7280;
  position: relative;
  padding-left: 1.5rem;
}

.value-card li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #10b981;
  font-weight: bold;
}

/* 核心优势 */
.features {
  padding: 100px 0;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

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

.feature-card {
  background: white;
  padding: 2.5rem;
  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 #e5e7eb;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
  transition: all 0.3s ease;
  transform: scale(0);
}

.feature-card:hover::before {
  transform: scale(1);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.feature-icon-large {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.feature-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.feature-card p {
  color: #6b7280;
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

/* 如何开始 */
.how-it-works {
  padding: 100px 0;
  background: white;
}

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

.step {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  padding: 2rem;
  background: linear-gradient(135deg, #f8fafc, #e2e8f0);
  border-radius: 20px;
  transition: all 0.3s ease;
}

.step:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.step-number {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #3b82f6, #1e40af);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.step-content h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 0.5rem;
}

.step-content p {
  color: #6b7280;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.step-details {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.step-details span {
  background: white;
  color: #1e40af;
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 收益展示 */
.earnings {
  padding: 100px 0;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: white;
}

.earnings .section-title {
  color: white;
}

.earnings .section-title::after {
  background: linear-gradient(90deg, #ffffff, #e0e7ff);
}

.earnings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.earnings-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  color: white;
  padding: 2rem;
  border-radius: 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.earnings-card::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
  transition: all 0.3s ease;
  transform: scale(0);
}

.earnings-card:hover::before {
  transform: scale(1);
}

.earnings-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.earnings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.earnings-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

.city {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.875rem;
}

.earnings-amount {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 1;
  background: linear-gradient(135deg, #ffffff, #e0e7ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.earnings-period {
  font-size: 1rem;
  opacity: 0.8;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.earnings-details {
  position: relative;
  z-index: 1;
}

.detail-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  opacity: 0.9;
}

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

.stat-item {
  padding: 2rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
}

.stat-item:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.15);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: white;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

/* 服务类型 */
.services {
  padding: 100px 0;
  background: white;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.service-item {
  background: linear-gradient(135deg, #f8fafc, #e2e8f0);
  padding: 2rem 1.5rem;
  border-radius: 15px;
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid #e5e7eb;
}

.service-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
}

.service-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.service-item h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 0.5rem;
}

.service-item p {
  color: #6b7280;
  font-size: 0.9rem;
}

/* 常见问题 */
.faq {
  padding: 100px 0;
  background: #f8fafc;
}

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

.faq-item {
  background: white;
  border-radius: 15px;
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.faq-item:hover {
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

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

.faq-question::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(135deg, #3b82f6, #1e40af);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-question::before {
  transform: scaleY(1);
}

.faq-question:hover {
  background: #f8fafc;
}

.faq-question h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: #1f2937;
  flex: 1;
}

.faq-toggle {
  font-size: 1.5rem;
  font-weight: 300;
  color: #1e40af;
  transition: transform 0.3s ease;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #eff6ff;
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
  background: #1e40af;
  color: white;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
  background: #f8fafc;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 2rem 1.5rem;
}

.faq-answer p {
  color: #6b7280;
  line-height: 1.6;
  padding-top: 1rem;
}

/* 成功案例 */
.testimonials {
  padding: 100px 0;
  background: white;
}

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

.testimonial-card {
  background: linear-gradient(135deg, #f8fafc, #e2e8f0);
  padding: 2rem;
  border-radius: 20px;
  transition: all 0.3s ease;
  border-left: 4px solid #3b82f6;
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.testimonial-content {
  margin-bottom: 1.5rem;
}

.testimonial-content p {
  font-style: italic;
  color: #4b5563;
  line-height: 1.6;
  font-size: 1.1rem;
}

.testimonial-content p::before {
  content: '"';
  font-size: 2rem;
  color: #3b82f6;
  line-height: 1;
}

.testimonial-content p::after {
  content: '"';
  font-size: 2rem;
  color: #3b82f6;
  line-height: 1;
}

.testimonial-author {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.author-info h4 {
  font-weight: 600;
  color: #1f2937;
  margin-bottom: 0.25rem;
}

.author-info span {
  color: #6b7280;
  font-size: 0.9rem;
}

.author-earnings {
  background: linear-gradient(135deg, #3b82f6, #1e40af);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.9rem;
}

/* 行动号召 */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(135deg, #1e40af, #3b82f6);
  color: white;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
}

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

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-content p {
  font-size: 1.25rem;
  margin-bottom: 2.5rem;
  opacity: 0.9;
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  margin-bottom: 2rem;
}

.contact-info p {
  margin: 0.5rem 0;
  font-size: 1.1rem;
  opacity: 0.9;
}

.guarantee {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
}

.guarantee-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  backdrop-filter: blur(10px);
}

.guarantee-icon {
  color: #10b981;
  font-weight: bold;
  font-size: 1.2rem;
}

/* 页脚 */
.footer {
  background: #1f2937;
  color: white;
  padding: 60px 0 20px;
}

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

.footer-section h3,
.footer-section h4 {
  margin-bottom: 1rem;
  color: #f9fafb;
}

.footer-section p {
  color: #d1d5db;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: #d1d5db;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: #3b82f6;
}

.footer-social {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.social-link {
  background: #374151;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.875rem;
  transition: all 0.3s ease;
}

.social-link:hover {
  background: #3b82f6;
  transform: translateY(-2px);
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #9ca3af;
}

.footer-links {
  display: flex;
  gap: 2rem;
}

.footer-links a {
  color: #9ca3af;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: #3b82f6;
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #3b82f6, #1e40af);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.5rem;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
  transition: all 0.3s ease;
  opacity: 0;
  visibility: hidden;
  z-index: 1000;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

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

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* AOS动画样式 */
[data-aos] {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
  opacity: 1;
}

[data-aos="fade-up"] {
  transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
  transform: translateY(0);
}

[data-aos="fade-right"] {
  transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
  transform: translateX(0);
}

[data-aos="zoom-in"] {
  transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
  transform: scale(1);
}

[data-aos="flip-left"] {
  transform: perspective(400px) rotateY(-90deg);
}

[data-aos="flip-left"].aos-animate {
  transform: perspective(400px) rotateY(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
    padding: 2rem 0;
    gap: 1rem;
  }

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

  .hero-container {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

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

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

  .phone-mockup {
    width: 250px;
    height: 500px;
  }

  .value-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .earnings-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

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

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

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

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

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

  .hero-content h1 {
    font-size: 2rem;
  }

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

  .feature-card,
  .value-card {
    padding: 2rem 1.5rem;
  }

  .earnings-card {
    padding: 1.5rem;
  }

  .earnings-amount {
    font-size: 2.5rem;
  }

  .stat-number {
    font-size: 2.5rem;
  }

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

  .faq-question {
    padding: 1rem 1.5rem;
  }

  .faq-item.active .faq-answer {
    padding: 0 1.5rem 1rem;
  }

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

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: #3b82f6;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #1e40af;
}

/* 选择文本样式 */
::selection {
  background: #3b82f6;
  color: white;
}

::-moz-selection {
  background: #3b82f6;
  color: white;
}

/* 加载动画 */
.loading {
  opacity: 0;
  animation: fadeIn 0.5s ease-in-out forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}