* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --secondary: #10b981;
  --secondary-dark: #059669;
  --accent: #8b5cf6;
  --accent-dark: #7c3aed;
  --text: #1f2937;
  --text-light: #6b7280;
  --background: #ffffff;
  --background-alt: #f8fafc;
  --border: #e5e7eb;
  --shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  --radius: 15px;
  --transition: all 0.3s ease;
}

body {
  font-family: "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    sans-serif;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--background);
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
}
.container {
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 clamp(15px, 5vw, 20px);
  box-sizing: border-box;
  position: relative;
  overflow-x: hidden;
}

/* 响应式宽度设置 */
@media (min-width: 576px) {
  .container {
    max-width: 540px;
  }
}

@media (min-width: 768px) {
  .container {
    max-width: 720px;
  }
}

@media (min-width: 992px) {
  .container {
    max-width: 960px;
  }
}

@media (min-width: 1200px) {
  .container {
    max-width: 1140px;
  }
}

/* 确保所有内容不会导致溢出 */
.container > * {
  max-width: 100%;
  overflow-x: hidden;
}

/* 特殊处理图片和媒体元素 */
.container img,
.container video,
.container iframe {
  max-width: 100%;
  height: auto;
}

.hero {
  width: 100%;
  overflow: hidden;
}

.hero .container {
  width: 100%;
  max-width: 1200px;
  padding: 0;
  margin: 0 auto;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 100%;
  padding: 0 15px;
  box-sizing: border-box;
}

@media (min-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
    max-width: 1200px;
    margin: 0 auto;
  }
}

/* 导航栏 */
.navbar {
  background: var(--background);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  transition: var(--transition);
  height: 90px;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 20px;
}

.nav-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
}

@media (max-width: 768px) {
  .nav-logo {
    height: 30px;
    max-width: 100%;
  }
  
  .navbar .container {
    flex-wrap: wrap;
  }
  
  .nav-brand {
    flex: 1;
    min-width: 120px;
  }
  
  .nav-toggle {
    order: 2;
  }
  
  .nav-menu {
    order: 3;
    width: 100%;
  }
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-menu a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-menu a:hover {
  color: var(--primary);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 10px;
  z-index: 1001;
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text);
  margin: 3px 0;
  transition: var(--transition);
  transform-origin: center;
}

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

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

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

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--background);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    padding: 1rem;
    flex-direction: column;
    gap: 1rem;
    transform: translateY(-150%);
    transition: transform 0.3s ease;
    z-index: 1000;
  }
  
  .nav-menu.active {
    transform: translateY(0);
  }
  
  .nav-menu a {
    padding: 0.5rem;
    border-bottom: 1px solid var(--border);
  }
  
  .nav-menu a:last-child {
    border-bottom: none;
  }
}

/* 主要展示区 */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 120px 0 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  width: 100%;
  box-sizing: border-box;
  max-width: 100vw;
}

/* 确保hero内的所有元素不会导致溢出 */
.hero * {
  max-width: 100%;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
  opacity: 0.5;
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 100%;
  padding: 0 15px;
  box-sizing: border-box;
  overflow: hidden;
}

/* 防止图片和媒体内容导致溢出 */
.hero-content img,
.hero-content video,
.hero-content iframe {
  max-width: 100%;
  height: auto;
}

@media (min-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
    max-width: 1200px;
    margin: 0 auto;
  }
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 900;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero h1 .highlight {
  color: #fbbf24;
  position: relative;
  display: inline-block;
}

.hero h1 .highlight::after {
  content: "";
  position: absolute;
  bottom: 5px;
  left: 0;
  width: 100%;
  height: 8px;
  background: rgba(251, 191, 36, 0.3);
  z-index: -1;
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.hero-highlights {
  display: flex;
  gap: 2rem;
  margin-bottom: 3rem;
}
/* 移动端样式 */
@media (max-width: 768px) {
  .hero-highlights {
    gap: 0; /* 移除 gap 属性 */
  }
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  justify-content: center;
}

.highlight-icon {
  font-size: 1.5rem;
}

.cta-buttons {
  display: flex;
  gap: 1rem;
}

.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background: var(--secondary);
  color: white;
}

.btn-primary:hover {
  background: var(--secondary-dark);
  transform: translateY(-2px);
}

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

.btn-secondary:hover {
  background: white;
  color: var(--primary);
}

.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

/* 手机模型 */
.phone-mockup {
  width: 300px;
  height: 600px;
  background: #333;
  border-radius: 30px;
  padding: 20px;
  margin: 0 auto;
  position: relative;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: #f8fafc;
  border-radius: 20px;
  padding: 30px 20px;
  overflow: hidden;
}

.app-interface {
  height: 100%;
}

.balance-card {
  background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
  color: white;
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  margin-bottom: 2rem;
}

.balance-card h3 {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: 0.5rem;
}

.amount {
  font-size: 2.5rem;
  font-weight: 700;
}

.stats {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-item {
  flex: 1;
  background: white;
  padding: 1.5rem;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.stat-item span {
  display: block;
  font-size: 0.9rem;
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.stat-item strong {
  font-size: 1.5rem;
  color: var(--text);
}

.activity-feed {
  background: white;
  border-radius: 10px;
  padding: 1rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.activity-item {
  display: flex;
  justify-content: space-between;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--border);
}

.activity-item:last-child {
  border-bottom: none;
}

.activity-time {
  color: var(--text-light);
  font-size: 0.9rem;
}

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

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 3rem;
}

.badge {
  text-align: center;
}

.badge-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  margin-bottom: 0.5rem;
}

.badge-text {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.1rem;
}

/* 工作原理 */
.how-it-works {
  padding: 80px 0;
  background: var(--background-alt);
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text);
  font-weight: 700;
}

.section-title .subtitle {
  display: block;
  font-size: 1.2rem;
  color: var(--text-light);
  font-weight: 400;
  margin-top: 0.5rem;
  margin-bottom: 2rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  background: var(--background);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

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

.step-number {
  width: 60px;
  height: 60px;
  background: var(--primary);
  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;
}

.step-content h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.step-content p {
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.step-icon {
  font-size: 2rem;
  margin-top: 1rem;
}

.workflow-diagram {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  background: var(--background);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.workflow-item {
  padding: 0.8rem 1.5rem;
  background: var(--primary);
  color: white;
  border-radius: 30px;
  font-weight: 600;
}

.workflow-item.highlight {
  background: var(--secondary);
  transform: scale(1.1);
}

.workflow-arrow {
  color: var(--text-light);
  font-size: 1.2rem;
}

/* 产品特色 */
.features {
  padding: 80px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.feature-card {
  background: var(--background);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
  border-top: 5px solid transparent;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-top-color: var(--primary);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text);
}

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

.feature-highlight {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  padding: 3rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.feature-highlight-content h3 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
}

.feature-highlight-content p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.feature-highlight-content strong {
  color: #fbbf24;
}

/* 优势对比 */
.advantages {
  padding: 80px 0;
  background: var(--background-alt);
}

.comparison-table {
  background: var(--background);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.comparison-header,
.comparison-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
}

.comparison-header {
  background: var(--text);
  color: white;
}

.comparison-item {
  padding: 1.5rem;
  text-align: center;
  border-right: 1px solid var(--border);
  font-weight: 600;
}

.comparison-item:last-child {
  border-right: none;
}

.comparison-item.highlight {
  background: var(--secondary);
  color: white;
}

.comparison-row:nth-child(even) {
  background: #f9fafb;
}

/* 收益计算器 */
.calculator {
  padding: 80px 0;
}

.calculator-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.calculator-form {
  background: var(--background);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 2rem;
  position: relative;
}

.form-group label {
  display: block;
  margin-bottom: 1rem;
  font-weight: 600;
  color: var(--text);
}

.slider-container {
  position: relative;
}

.slider {
  -webkit-appearance: none;
  width: 100%;
  height: 10px;
  border-radius: 5px;
  background: #ddd;
  outline: none;
  transition: var(--transition);
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  transition: var(--transition);
}

.slider::-moz-range-thumb {
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.slider::-webkit-slider-thumb:hover {
  background: var(--primary-dark);
  transform: scale(1.1);
}

.slider::-moz-range-thumb:hover {
  background: var(--primary-dark);
  transform: scale(1.1);
}

.slider-value {
  position: absolute;
  right: 0;
  top: -30px;
  background: var(--primary);
  color: white;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
}

.calculator-results {
  position: sticky;
  top: 100px;
}

.result-card {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.result-card h3 {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  text-align: center;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.result-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.result-item.highlight {
  background: rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: 8px;
  border-bottom: none;
}

.result-item.future {
  margin-top: 1.5rem;
  background: rgba(251, 191, 36, 0.2);
  padding: 1rem;
  border-radius: 8px;
  border-bottom: none;
}

.result-item strong {
  font-size: 1.2rem;
}

.calculator-note {
  margin-top: 2rem;
  padding: 1.5rem;
  background: #fef3c7;
  border-radius: 8px;
  color: #92400e;
}

.calculator-note p {
  margin-bottom: 0.5rem;
}

.calculator-note p:last-child {
  margin-bottom: 0;
}

/* 话术 */
.scripts {
  padding: 80px 0;
  background: var(--background-alt);
}

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

.script-card {
  background: var(--background);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-left: 5px solid var(--primary);
}

.script-card:hover {
  transform: translateY(-5px);
}

.script-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.script-card h3 {
  color: var(--primary);
  margin-bottom: 1rem;
  font-size: 1.2rem;
}

.script-card p {
  color: var(--text-light);
  line-height: 1.6;
  font-style: italic;
}

/* 全场景返佣 */
.scenarios {
  padding: 80px 0;
}

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

.scenario-card {
  background: var(--background);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  transition: var(--transition);
}

.scenario-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

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

.scenario-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.scenario-card p {
  color: var(--text-light);
  line-height: 1.6;
}

/* 成功案例 */
.cases {
  padding: 80px 0;
  background: var(--background-alt);
}

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

.case-card {
  background: var(--background);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
}

.case-card:hover {
  transform: translateY(-5px);
}

.case-card.featured {
  border: 2px solid var(--secondary);
}

.case-card.featured::before {
  content: "明星案例";
  position: absolute;
  top: -12px;
  left: 20px;
  background: var(--secondary);
  color: white;
  padding: 0.3rem 1rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
}

.case-avatar {
  width: 60px;
  height: 60px;
  background: var(--secondary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.case-content h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.case-stats {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.case-content p {
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.case-income {
  background: #dcfce7;
  color: #166534;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-weight: 600;
  display: inline-block;
}

/* 常见问题 */
.faq {
  padding: 80px 0;
}

.faq-grid {
  display: grid;
  gap: 1rem;
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--background);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--background-alt);
}

.faq-question h3 {
  font-size: 1.2rem;
  color: var(--text);
}

.faq-toggle {
  font-size: 1.5rem;
  color: var(--primary);
  transition: var(--transition);
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
  padding: 0 1.5rem 1.5rem;
  max-height: 200px;
}

.faq-answer p {
  color: var(--text-light);
  line-height: 1.6;
}

/* 联系我们 */
.contact {
  padding: 80px 0;
  background: var(--background-alt);
}

.contact-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h3 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.contact-info p {
  color: var(--text-light);
  font-size: 1.1rem;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 2rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

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

.contact-item strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.contact-item p {
  margin: 0;
  color: var(--text-light);
}

.contact-cta {
  margin-top: 2rem;
}

.qr-codes {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  align-items: center;
}

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

.qr-code img {
  width: 150px;
  height: 150px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  margin-bottom: 1rem;
}

.qr-code p {
  font-weight: 600;
  color: var(--text);
}

/* 页脚 */
.footer {
  background: var(--text);
  color: white;
  padding: 60px 0 20px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

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

.footer-section a {
  display: block;
  color: #d1d5db;
  text-decoration: none;
  margin-bottom: 0.5rem;
  transition: var(--transition);
}

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

.footer-section p {
  color: #d1d5db;
  margin-bottom: 0.5rem;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 2rem;
  text-align: center;
  color: #9ca3af;
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 1000;
}

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

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--background);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    padding: 1rem;
    flex-direction: column;
    gap: 1rem;
    transform: translateY(-150%);
    transition: transform 0.3s ease;
    z-index: 1000;
  }
  
  .nav-menu.active {
    transform: translateY(0);
  }
  
  .nav-menu a {
    padding: 0.5rem;
    border-bottom: 1px solid var(--border);
  }
  
  .nav-menu a:last-child {
    border-bottom: none;
  }
  
  /* 联系我们部分移动端样式调整 */
  .contact-content {
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: center;
  }
  
  .contact-methods {
    align-items: center;
  }
  
  .contact-item {
    justify-content: center;
  }
  
  .qr-codes {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .qr-code {
    flex: 0 0 calc(50% - 1rem);
    max-width: calc(50% - 1rem);
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 100px 0 60px;
  }

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

  .phone-mockup {
    width: 200px;
    height: 400px;
  }

  .balance-card {
    padding: 1.5rem;
  }

  .amount {
    font-size: 2rem;
  }

  .stats {
    flex-direction: column;
  }

  .feature-card,
  .calculator-form,
  .case-card {
    padding: 1.5rem;
  }

  .qr-codes {
    flex-direction: column;
  }
  
  .qr-code {
    flex: 0 0 100%;
    max-width: 100%;
  }

  .hero-badges {
    flex-direction: column;
    gap: 1rem;
  }
}

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

.feature-card,
.case-card,
.script-card,
.scenario-card {
  animation: fadeInUp 0.6s ease-out;
}

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

/* 加载状态 */
.loading {
  opacity: 0.7;
  pointer-events: none;
}