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  <!-- 背景 -->
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  <!-- 装饰网格 -->
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  <!-- 中心图标 -->
  <text x="400.0" y="220.0" text-anchor="middle" font-size="80" fill="#00d4ff" opacity="0.8">🧊</text>
  
  <!-- 标题 -->
  <text x="400.0" y="300.0" text-anchor="middle" font-size="32" font-weight="bold" fill="#ffffff" opacity="0.9">冷链物流</text>
  <text x="400.0" y="340.0" text-anchor="middle" font-size="18" fill="#9090a0">-30℃~50℃宽温区稳定运行</text>
  
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