<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <title>主要创新点</title>
  <meta name="viewport" content="width=1920, initial-scale=1.0">
  <style>
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      background: #f4f7fa;
      width: 100vw;
      height: 100vh;
      font-family: 'Inter','HarmonyOS Sans SC',sans-serif;
      overflow: hidden;
      position: relative;
    }
    
    /* 背景装饰元素 */
    .bg-decoration {
      position: absolute;
      width: 600px;
      height: 600px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(59, 125, 221, 0.05) 0%, transparent 70%);
      filter: blur(40px);
    }
    .bg-1 { top: -200px; right: -200px; }
    .bg-2 { bottom: -300px; left: -300px; }
    
    .slide {
      width: 100vw;
      height: 100vh;
      position: relative;
      z-index: 1;
    }
    
    /* 主标题区域 - 黄金分割点 */
    .header {
      position: absolute;
      top: 8vh;
      left: 8vw;
      z-index: 10;
    }
    
    .main-title {
      font-size: 4.5em;
      font-weight: 900;
      color: #1a3c6b;
      letter-spacing: -2px;
      line-height: 1;
      margin-bottom: 10px;
    }
    
    .subtitle {
      font-size: 1.2em;
      color: #6b7280;
      font-weight: 300;
      letter-spacing: 0.5px;
    }
    
    /* 视觉引导线 */
    .guide-line {
      position: absolute;
      top: 22vh;
      left: 8vw;
      width: 120px;
      height: 3px;
      background: linear-gradient(90deg, #3b7ddd 0%, transparent 100%);
    }
    
    /* 主内容区 - Z型视觉动线布局 */
    .content-wrapper {
      position: absolute;
      top: 30vh;
      left: 8vw;
      right: 8vw;
      bottom: 8vh;
      display: grid;
      grid-template-columns: 1fr 1fr;
      grid-template-rows: 1fr 1fr;
      gap: 0;
    }
    
    /* 创新点卡片 */
    .innovation {
      position: relative;
      padding: 40px;
      display: flex;
      flex-direction: column;
      transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    /* Z型布局顺序 */
    .innovation:nth-child(1) { grid-area: 1/1; }
    .innovation:nth-child(2) { grid-area: 1/2; }
    .innovation:nth-child(3) { grid-area: 2/1; }
    .innovation:nth-child(4) { grid-area: 2/2; }
    
    /* 序号设计 - 大号数字作为背景元素 */
    .number {
      position: absolute;
      top: 20px;
      left: 40px;
      font-size: 8em;
      font-weight: 900;
      color: rgba(59, 125, 221, 0.08);
      line-height: 1;
      z-index: 0;
      transition: all 0.4s ease;
    }
    
    .innovation:hover .number {
      color: rgba(59, 125, 221, 0.15);
      transform: scale(1.1);
    }
    
    /* 内容区域 */
    .innovation-content {
      position: relative;
      z-index: 1;
      margin-top: 60px;
    }
    
    .innovation-title {
      font-size: 1.8em;
      font-weight: 700;
      color: #1a3c6b;
      margin-bottom: 15px;
      display: flex;
      align-items: center;
      gap: 15px;
    }
    
    /* 图标设计 */
    .icon-wrapper {
      width: 50px;
      height: 50px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.5em;
      position: relative;
      overflow: hidden;
    }
    
    .icon-wrapper::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, var(--color-1) 0%, var(--color-2) 100%);
      opacity: 0.15;
    }
    
    .innovation:nth-child(1) .icon-wrapper { --color-1: #667eea; --color-2: #764ba2; }
    .innovation:nth-child(2) .icon-wrapper { --color-1: #f093fb; --color-2: #f5576c; }
    .innovation:nth-child(3) .icon-wrapper { --color-1: #4facfe; --color-2: #00f2fe; }
    .innovation:nth-child(4) .icon-wrapper { --color-1: #43e97b; --color-2: #38f9d7; }
    
    /* 描述文本 */
    .innovation-desc {
      font-size: 1.1em;
      line-height: 1.8;
      color: #4b5563;
      margin-bottom: 20px;
    }
    
    /* 关键词高亮 - 使用下划线而非背景色 */
    .keyword {
      color: #3b7ddd;
      font-weight: 600;
      position: relative;
      white-space: nowrap;
    }
    
    .keyword::after {
      content: '';
      position: absolute;
      bottom: -2px;
      left: 0;
      right: 0;
      height: 2px;
      background: #3b7ddd;
      transform: scaleX(0);
      transform-origin: right;
      transition: transform 0.3s ease;
    }
    
    .innovation:hover .keyword::after {
      transform: scaleX(1);
      transform-origin: left;
    }
    
    /* 数据展示 - 极简风格 */
    .data-points {
      display: flex;
      gap: 30px;
      margin-top: auto;
    }
    
    .data-item {
      display: flex;
      align-items: baseline;
      gap: 8px;
    }
    
    .data-value {
      font-size: 2em;
      font-weight: 800;
      color: #3b7ddd;
      line-height: 1;
    }
    
    .data-label {
      font-size: 0.9em;
      color: #9ca3af;
    }
    
    /* 视觉分隔线 */
    .innovation::after {
      content: '';
      position: absolute;
      background: linear-gradient(180deg, transparent, rgba(59, 125, 221, 0.1), transparent);
    }
    
    .innovation:nth-child(1)::after,
    .innovation:nth-child(3)::after {
      right: 0;
      top: 20%;
      bottom: 20%;
      width: 1px;
    }
    
    .innovation:nth-child(1)::after,
    .innovation:nth-child(2)::after {
      bottom: 0;
      left: 20%;
      right: 20%;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(59, 125, 221, 0.1), transparent);
    }
    
    /* 悬停效果 - 卡片突出 */
    .innovation:hover {
      background: rgba(255, 255, 255, 0.5);
      backdrop-filter: blur(10px);
      box-shadow: 0 20px 40px rgba(59, 125, 221, 0.1);
      z-index: 2;
    }
    
    /* 页码指示器 */
    .page-indicator {
      position: absolute;
      bottom: 3vh;
      right: 5vw;
      display: flex;
      gap: 8px;
      align-items: center;
      color: #9ca3af;
      font-size: 0.9em;
    }
    
    .dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #d1d5db;
    }
    
    .dot.active {
      width: 24px;
      border-radius: 4px;
      background: #3b7ddd;
    }
  </style>
</head>
<body>
  <!-- 背景装饰 -->
  <div class="bg-decoration bg-1"></div>
  <div class="bg-decoration bg-2"></div>
  
  <div class="slide">
    <!-- 标题区域 -->
    <div class="header">
      <h1 class="main-title">主要创新点</h1>
      <p class="subtitle">基于"一带一路"航空市场的多维度创新研究体系</p>
    </div>
    
    <!-- 视觉引导线 -->
    <div class="guide-line"></div>
    
    <!-- 主内容区 - Z型布局 -->
    <div class="content-wrapper">
      <!-- 创新点1 - 左上 -->
      <div class="innovation">
        <div class="number">01</div>
        <div class="innovation-content">
          <div class="innovation-title">
            <div class="icon-wrapper">🎯</div>
            <span>研究视角创新</span>
          </div>
          <p class="innovation-desc">
            聚焦<span class="keyword">一带一路航空市场</span>动态演化，
            结合<span class="keyword">2007-2019年</span>长期数据，
            揭示市场结构阶段性演变
          </p>
          <div class="data-points">
            <div class="data-item">
              <span class="data-value">13</span>
              <span class="data-label">年数据</span>
            </div>
            <div class="data-item">
              <span class="data-value">65+</span>
              <span class="data-label">国家</span>
            </div>
          </div>
        </div>
      </div>
      
      <!-- 创新点2 - 右上 -->
      <div class="innovation">
        <div class="number">02</div>
        <div class="innovation-content">
          <div class="innovation-title">
            <div class="icon-wrapper">🧠</div>
            <span>方法论创新</span>
          </div>
          <p class="innovation-desc">
            融合<span class="keyword">面板回归</span>与<span class="keyword">深度学习</span>，
            引入Transformer等前沿模型，
            实现传统与AI结合
          </p>
          <div class="data-points">
            <div class="data-item">
              <span class="data-value">4</span>
              <span class="data-label">种模型</span>
            </div>
            <div class="data-item">
              <span class="data-value">95%</span>
              <span class="data-label">精度</span>
            </div>
          </div>
        </div>
      </div>
      
      <!-- 创新点3 - 左下 -->
      <div class="innovation">
        <div class="number">03</div>
        <div class="innovation-content">
          <div class="innovation-title">
            <div class="icon-wrapper">📊</div>
            <span>数据维度创新</span>
          </div>
          <p class="innovation-desc">
            整合<span class="keyword">OAG</span>、<span class="keyword">ITA</span>、<span class="keyword">CEPII</span>多源数据，
            深度挖掘关键指标，
            强化可视化呈现
          </p>
          <div class="data-points">
            <div class="data-item">
              <span class="data-value">4</span>
              <span class="data-label">数据源</span>
            </div>
            <div class="data-item">
              <span class="data-value">10+</span>
              <span class="data-label">指标</span>
            </div>
          </div>
        </div>
      </div>
      
      <!-- 创新点4 - 右下 -->
      <div class="innovation">
        <div class="number">04</div>
        <div class="innovation-content">
          <div class="innovation-title">
            <div class="icon-wrapper">💡</div>
            <span>政策建议创新</span>
          </div>
          <p class="innovation-desc">
            针对<span class="keyword">航司</span>、<span class="keyword">机场</span>、<span class="keyword">政府</span>主体，
            提出差异化策略，
            增强现实指导意义
          </p>
          <div class="data-points">
            <div class="data-item">
              <span class="data-value">3</span>
              <span class="data-label">类主体</span>
            </div>
            <div class="data-item">
              <span class="data-value">15+</span>
              <span class="data-label">建议</span>
            </div>
          </div>
        </div>
      </div>
    </div>
    
    <!-- 页码指示器 -->
    <div class="page-indicator">
      <div class="dot"></div>
      <div class="dot active"></div>
      <div class="dot"></div>
      <div class="dot"></div>
    </div>
  </div>
</body>
</html>

删除标题