/* 使用免费商用字体 */
@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap");

/* 基础样式重置 */
* {
  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;
  overflow-x: hidden;
}

.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);
  z-index: 1000;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  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 h2 {
  color: #ff6b35;
  font-weight: 700;
  font-size: 1.5rem;
}

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

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

.nav-link:hover {
  color: #ff6b35;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: #ff6b35;
  transition: width 0.3s ease;
}

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

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

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

/* 英雄区域 */
.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;
}

.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="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></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-title {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease;
}

.highlight {
  background: linear-gradient(45deg, #ffd700, #ffed4e);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-features {
  display: flex;
  gap: 2rem;
  margin-bottom: 2rem;
  animation: fadeInUp 1s ease 0.2s both;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.1);
  padding: 1rem;
  border-radius: 10px;
  backdrop-filter: blur(10px);
}

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

.feature-text {
  font-weight: 600;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  margin-bottom: 3rem;
  animation: fadeInUp 1s ease 0.4s both;
}

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

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: #ffd700;
  display: block;
}

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

.hero-cta {
  display: flex;
  gap: 1rem;
  animation: fadeInUp 1s ease 0.6s both;
}

.cta-button {
  padding: 1rem 2rem;
  border: none;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.cta-button.primary {
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  color: white;
  box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
}

.cta-button.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px rgba(255, 107, 53, 0.4);
}

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

.cta-button.secondary:hover {
  background: white;
  color: #667eea;
  transform: translateY(-3px);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight 1s ease 0.8s both;
}

.floating-card {
  background: white;
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  color: #333;
  transform: rotate(-5deg);
  animation: float 6s ease-in-out infinite;
}

.floating-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: #ff6b35;
}

.floating-card p {
  margin-bottom: 1rem;
  color: #666;
}

.price {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.original-price {
  text-decoration: line-through;
  color: #999;
  font-size: 1rem;
}

.current-price {
  font-size: 2rem;
  font-weight: 700;
  color: #ff6b35;
}

.profit-badge {
  background: linear-gradient(45deg, #4caf50, #45a049);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
}

@keyframes float {
  0%,
  100% {
    transform: rotate(-5deg) translateY(0px);
  }
  50% {
    transform: rotate(-5deg) translateY(-20px);
  }
}

@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);
  }
}

/* 产品介绍区域 */
.product-section {
  padding: 80px 0;
  background: #f8f9fa;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.2rem;
  color: #666;
  max-width: 600px;
  margin: 0 auto;
}

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

.product-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(45deg, #ff6b35, #f7931e);
}

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

.product-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.product-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}

.product-card p {
  color: #666;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.product-highlight {
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-block;
}

.authority-section {
  text-align: center;
  margin-bottom: 3rem;
}

.authority-section h3 {
  font-size: 2rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 2rem;
}

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

.authority-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: white;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.authority-text {
  font-weight: 600;
  color: #333;
}

.urgency-section {
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  color: white;
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  margin-top: 3rem;
}

.urgency-content {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.urgency-number,
.urgency-timer {
  font-size: 1.2rem;
  font-weight: 600;
}

#countdown {
  font-family: "Courier New", monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffd700;
}

/* 推广方式区域 */
.promotion-section {
  padding: 80px 0;
  background: white;
}

.promotion-tabs {
  max-width: 1200px;
  margin: 0 auto;
}

.tab-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.tab-button {
  padding: 1rem 2rem;
  border: 2px solid #ddd;
  background: white;
  color: #666;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.tab-button.active,
.tab-button:hover {
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  color: white;
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(255, 107, 53, 0.3);
}

.tab-content {
  display: none;
  animation: fadeIn 0.5s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.promotion-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.promotion-left h3 {
  font-size: 2rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 2rem;
}

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

.stat {
  text-align: center;
  padding: 1rem;
  background: #f8f9fa;
  border-radius: 10px;
  min-width: 120px;
}

.stat-value {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: #ff6b35;
}

.stat-desc {
  font-size: 0.9rem;
  color: #666;
}

.best-locations h4,
.success-tips h4 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}

.location-grid {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

.location-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: #f8f9fa;
  border-radius: 10px;
  transition: all 0.3s ease;
}

.location-item:hover {
  background: #e9ecef;
  transform: translateX(5px);
}

.location-icon {
  font-size: 1.5rem;
  min-width: 30px;
}

.location-info strong {
  display: block;
  font-weight: 600;
  color: #333;
  margin-bottom: 0.25rem;
}

.location-info p {
  color: #666;
  font-size: 0.9rem;
  margin: 0;
}

.success-tips ul {
  list-style: none;
  padding: 0;
}

.success-tips li {
  padding: 0.5rem 0;
  color: #666;
  position: relative;
  padding-left: 1.5rem;
}

.success-tips li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #4caf50;
  font-weight: bold;
}

.case-study {
  background: #f8f9fa;
  padding: 2rem;
  border-radius: 15px;
  margin-bottom: 2rem;
}

.case-study h4 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}

.case-content {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.case-avatar {
  font-size: 3rem;
  min-width: 60px;
}

.case-info h5 {
  font-weight: 600;
  color: #333;
  margin-bottom: 0.5rem;
}

.case-info p {
  color: #f5d0d0;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.case-stats {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.case-stats span {
  background: #ff6b35;
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 600;
}

.tools-package {
  background: #e3f2fd;
  padding: 2rem;
  border-radius: 15px;
}

.tools-package h4 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}

.tools-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.tool-item {
  padding: 0.75rem;
  background: white;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #333;
  text-align: center;
}

/* 异业合作样式 */
.cooperation-models {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.cooperation-item {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background: #f8f9fa;
  border-radius: 10px;
  transition: all 0.3s ease;
}

.cooperation-item:hover {
  background: #e9ecef;
  transform: translateY(-2px);
}

.cooperation-icon {
  font-size: 2rem;
  min-width: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cooperation-info h4 {
  font-weight: 600;
  color: #333;
  margin-bottom: 0.5rem;
}

.cooperation-info p {
  color: #666;
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

.cooperation-result {
  background: linear-gradient(45deg, #4caf50, #45a049);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 600;
  display: inline-block;
}

.revenue-model {
  background: #fff3e0;
  padding: 2rem;
  border-radius: 15px;
  margin-bottom: 2rem;
}

.revenue-model h4 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1.5rem;
}

.revenue-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.revenue-step {
  flex: 1;
  min-width: 150px;
  text-align: center;
}

.step-number {
  width: 40px;
  height: 40px;
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin: 0 auto 1rem;
}

.step-content h5 {
  font-weight: 600;
  color: #333;
  margin-bottom: 0.5rem;
}

.step-content p {
  color: #666;
  font-size: 0.9rem;
}

.arrow {
  font-size: 1.5rem;
  color: #ff6b35;
  font-weight: bold;
}

/* 网络推广样式 */
.platform-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

.platform-category h4 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}

.platform-list {
  display: grid;
  gap: 0.75rem;
}

.platform-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: #f8f9fa;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.platform-item:hover {
  background: #e9ecef;
  transform: translateX(5px);
}

.platform-name {
  font-weight: 600;
  color: #333;
}

.platform-desc {
  color: #666;
  font-size: 0.9rem;
}

.video-platforms {
  display: grid;
  gap: 1rem;
}

.video-item {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background: #f8f9fa;
  border-radius: 10px;
  transition: all 0.3s ease;
}

.video-item:hover {
  background: #e9ecef;
  transform: translateY(-2px);
}

.video-icon {
  font-size: 2rem;
  min-width: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-info h5 {
  font-weight: 600;
  color: #333;
  margin-bottom: 0.5rem;
}

.video-info p {
  color: #666;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.video-features {
  color: #ff6b35;
  font-size: 0.8rem;
  font-weight: 500;
}

.ai-tools {
  background: #f3e5f5;
  padding: 2rem;
  border-radius: 15px;
  margin-bottom: 2rem;
}

.ai-tools h4 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}

.ai-tool-list {
  display: grid;
  gap: 1rem;
}

.ai-tool {
  display: flex;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  background: white;
  border-radius: 8px;
}

.ai-icon {
  font-size: 1.5rem;
  min-width: 40px;
  text-align: center;
}

.ai-info h5 {
  font-weight: 600;
  color: #333;
  margin-bottom: 0.25rem;
}

.ai-info p {
  color: #666;
  font-size: 0.9rem;
  margin: 0;
}

/* 对比表格 */
.comparison-section {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 2px solid #eee;
}

.comparison-section h3 {
  font-size: 2rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 2rem;
  text-align: center;
}

.comparison-table {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.table-header {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  color: white;
  font-weight: 600;
}

.table-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  border-bottom: 1px solid #eee;
}

.table-row:last-child {
  border-bottom: none;
}

.table-row:nth-child(even) {
  background: #f8f9fa;
}

.table-cell {
  padding: 1rem;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

/* 组合推广优势 */
.combo-advantages {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 2px solid #eee;
}

.combo-advantages h3 {
  font-size: 2rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 2rem;
  text-align: center;
}

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

.advantage-item {
  text-align: center;
  padding: 2rem;
  background: white;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.advantage-item:hover {
  transform: translateY(-10px);
}

.advantage-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.advantage-item h4 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}

.advantage-item p {
  color: #666;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.advantage-stat {
  background: linear-gradient(45deg, #4caf50, #45a049);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-block;
}

/* 收益计算器 */
.calculator-section {
  padding: 80px 0;
  background: #f8f9fa;
}

.calculator-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.calculator-inputs {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.input-group {
  margin-bottom: 2rem;
}

.input-group label {
  display: block;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}

.slider-container {
  position: relative;
}

.slider {
  width: 100%;
  height: 8px;
  border-radius: 5px;
  background: #ddd;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(255, 107, 53, 0.3);
}

.slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 10px rgba(255, 107, 53, 0.3);
}

.slider-value {
  text-align: center;
  margin-top: 0.5rem;
  font-weight: 600;
  color: #ff6b35;
  font-size: 1.1rem;
}

.calculator-results {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.calculator-results h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1.5rem;
  text-align: center;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.result-item {
  text-align: center;
  padding: 1rem;
  background: #f8f9fa;
  border-radius: 10px;
}

.result-label {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 0.5rem;
}

.result-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: #ff6b35;
}

.revenue-breakdown {
  margin-bottom: 2rem;
}

.revenue-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: #f8f9fa;
  border-radius: 10px;
  margin-bottom: 1rem;
}

.revenue-icon {
  font-size: 1.5rem;
  min-width: 40px;
  text-align: center;
}

.revenue-info {
  flex: 1;
}

.revenue-label {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 0.25rem;
}

.revenue-amount {
  font-size: 1.2rem;
  font-weight: 700;
  color: #333;
}

.total-revenue {
  text-align: center;
  margin-bottom: 2rem;
}

.total-monthly,
.total-yearly {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  margin-bottom: 1rem;
  border-radius: 10px;
}

.total-monthly {
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  color: white;
}

.total-yearly {
  background: linear-gradient(45deg, #4caf50, #45a049);
  color: white;
}

.total-label {
  font-weight: 600;
}

.total-amount {
  font-size: 1.5rem;
  font-weight: 700;
}

.revenue-chart {
  text-align: center;
}

#revenueChart {
  max-width: 100%;
  height: auto;
}

.improvement-strategies {
  margin-top: 3rem;
}

.improvement-strategies h3 {
  font-size: 2rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 2rem;
  text-align: center;
}

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

.strategy-item {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease;
}

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

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

.strategy-item h4 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}

.strategy-item p {
  color: #666;
  line-height: 1.6;
}

/* 成功案例区域 */
.cases-section {
  padding: 80px 0;
  background: white;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

.case-card {
  background: white;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.case-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.case-avatar {
  font-size: 3rem;
  min-width: 60px;
}

.case-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.case-title {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: 0.25rem;
}

.case-location {
  font-size: 0.9rem;
  opacity: 0.8;
}

.case-content {
  padding: 2rem;
}

.case-content blockquote {
  font-style: italic;
  color: #666;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  position: relative;
  padding-left: 1rem;
  border-left: 4px solid #ff6b35;
}

.case-stats {
  display: flex;
  justify-content: space-around;
  text-align: center;
}

.case-stat {
  flex: 1;
}

.case-stat .stat-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: #ff6b35;
  margin-bottom: 0.25rem;
}

.case-stat .stat-label {
  font-size: 0.9rem;
  color: #666;
}

.testimonials {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 2px solid #eee;
}

.testimonials h3 {
  font-size: 2rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 2rem;
  text-align: center;
}

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

.testimonial-item {
  background: #f8f9fa;
  padding: 2rem;
  border-radius: 15px;
  position: relative;
}

.testimonial-item::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 20px;
  font-size: 4rem;
  color: #ff6b35;
  font-family: serif;
}

.testimonial-item blockquote {
  font-style: italic;
  color: #666;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.testimonial-author {
  text-align: right;
}

.testimonial-author strong {
  display: block;
  color: #333;
  font-weight: 600;
}

.testimonial-author span {
  color: #666;
  font-size: 0.9rem;
}

/* 各职业推广方案 */
.profession-solutions {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 2px solid #eee;
}

.profession-solutions h3 {
  font-size: 2rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 2rem;
  text-align: center;
}

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

.profession-card {
  background: white;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s ease;
}

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

.profession-header {
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  color: white;
  padding: 1.5rem;
  text-align: center;
}

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

.profession-header h4 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.difficulty {
  font-size: 0.9rem;
  opacity: 0.9;
}

.profession-content {
  padding: 2rem;
}

.profession-content ul {
  list-style: none;
  padding: 0;
  margin-bottom: 1.5rem;
}

.profession-content li {
  padding: 0.5rem 0;
  color: #666;
  position: relative;
  padding-left: 1.5rem;
}

.profession-content li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: #ff6b35;
  font-weight: bold;
}

.expected-income {
  background: linear-gradient(45deg, #4caf50, #45a049);
  color: white;
  padding: 1rem;
  border-radius: 10px;
  text-align: center;
  font-weight: 600;
}

/* 权威认证区域 */
.authority-section {
  padding: 80px 0;
  background: #f8f9fa;
}

.certification-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.cert-item {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

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

.cert-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.cert-item h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}

.cert-item p {
  color: #666;
  line-height: 1.6;
}

.certificates {
  text-align: center;
}

.cert-images {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.cert-badge {
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  color: white;
  padding: 1rem 2rem;
  border-radius: 10px;
  font-weight: 600;
  box-shadow: 0 5px 15px rgba(255, 107, 53, 0.3);
}

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

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.contact-item {
  background: #f8f9fa;
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  transition: transform 0.3s ease;
}

.contact-item:hover {
  transform: translateY(-5px);
  background: #e9ecef;
}

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

.contact-item h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}

.contact-info a {
  color: #ff6b35;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
}

.contact-info a:hover {
  text-decoration: underline;
}

.contact-info p {
  color: #666;
  margin-top: 0.5rem;
}

.contact-info address {
  font-style: normal;
  color: #333;
  font-weight: 500;
  line-height: 1.5;
}

.qr-codes {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

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

.qr-code {
  width: 150px;
  height: 150px;
  background: #f8f9fa;
  border: 2px solid #ddd;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: #666;
  text-align: center;
  padding: 1rem;
}

.qr-placeholder {
  line-height: 1.4;
}

.qr-item p {
  color: #666;
  font-size: 0.9rem;
  line-height: 1.4;
}

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

.app-download h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: #333;
  margin-bottom: 1rem;
}

.app-download p {
  color: #666;
  margin-bottom: 2rem;
}

.download-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.download-btn {
  padding: 1rem 2rem;
  border: 2px solid #ddd;
  background: #f8f9fa;
  color: #999;
  border-radius: 10px;
  font-weight: 600;
  cursor: not-allowed;
}

/* 页脚 */
.footer {
  background: #333;
  color: white;
  padding: 3rem 0 1rem;
}

.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: #ff6b35;
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

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

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

.footer-section a:hover {
  color: #ff6b35;
}

.social-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.social-link {
  background: #555;
  padding: 0.5rem 1rem;
  border-radius: 5px;
  font-size: 0.9rem;
  transition: background 0.3s ease;
}

.social-link:hover {
  background: #ff6b35;
}

.footer-bottom {
  border-top: 1px solid #555;
  padding-top: 2rem;
  text-align: center;
}

.disclaimer {
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: #ccc;
  line-height: 1.6;
}

.disclaimer p {
  margin-bottom: 0.5rem;
}

.footer-legal {
  font-size: 0.8rem;
  color: #999;
}

.footer-legal p {
  margin-bottom: 0.25rem;
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: linear-gradient(45deg, #ff6b35, #f7931e);
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 5px 15px rgba(255, 107, 53, 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 10px 25px rgba(255, 107, 53, 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: 2rem 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;
    text-align: center;
    gap: 2rem;
  }

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

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

  .hero-stats {
    justify-content: center;
    flex-wrap: wrap;
  }

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

  .promotion-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .calculator-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .result-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

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

  .arrow {
    transform: rotate(90deg);
  }

  .table-header,
  .table-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .table-cell {
    border-bottom: 1px solid #eee;
    padding: 0.75rem;
    font-size: 0.8rem;
  }

  .table-header .table-cell {
    background: #ff6b35;
    color: white;
    font-weight: 600;
  }

  .table-cell:first-child {
    font-weight: 600;
    background: #f8f9fa;
  }

  .urgency-content {
    flex-direction: column;
    gap: 1rem;
  }

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

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

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

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

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

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

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

  .hero-title {
    font-size: 1.8rem;
  }

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

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

  .tab-button {
    width: 100%;
    max-width: 300px;
  }

  .cta-button {
    width: 100%;
    max-width: 300px;
  }

  .floating-card {
    transform: rotate(0deg);
    margin: 0 auto;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    font-size: 1.3rem;
  }
}

/* 动画效果 */
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

.cta-button:hover {
  animation: pulse 0.6s ease-in-out;
}

/* 滚动动画 */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.scroll-animate.animate {
  opacity: 1;
  transform: translateY(0);
}

/* 加载动画 */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 工具提示 */
.tooltip {
  position: relative;
  cursor: help;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: #333;
  color: white;
  padding: 0.5rem;
  border-radius: 5px;
  font-size: 0.8rem;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 1000;
}

.tooltip:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-5px);
}

/* 高亮效果 */
.highlight-text {
  background: linear-gradient(120deg, #ffd700 0%, #ffd700 100%);
  background-repeat: no-repeat;
  background-size: 100% 0.2em;
  background-position: 0 88%;
  transition: background-size 0.25s ease-in;
}

.highlight-text:hover {
  background-size: 100% 88%;
}

/* 成功状态 */
.success {
  color: #4caf50;
  font-weight: 600;
}

.error {
  color: #f44336;
  font-weight: 600;
}

.warning {
  color: #ff9800;
  font-weight: 600;
}

/* 打印样式 */
@media print {
  .navbar,
  .back-to-top,
  .hero-cta,
  .tab-buttons {
    display: none;
  }

  .hero {
    background: none;
    color: #333;
  }

  body {
    font-size: 12pt;
    line-height: 1.4;
  }

  .section-header h2 {
    font-size: 18pt;
  }
}