修改大屏，继续完善官网

website/favicon.svg

@@ -0,0 +1,25 @@
+<svg width="32" height="32" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg">
+  <defs>
+    <linearGradient id="faviconGradient" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" style="stop-color:#667eea;stop-opacity:1" />
+      <stop offset="100%" style="stop-color:#764ba2;stop-opacity:1" />
+    </linearGradient>
+  </defs>
+  
+  <!-- 背景圆形 -->
+  <circle cx="16" cy="16" r="15" fill="url(#faviconGradient)"/>
+  
+  <!-- 云朵图标 -->
+  <path d="M10 18c-2.2 0-4-1.8-4-4 0-1.2.5-2.3 1.4-3C7.8 9.7 9.2 8.5 11 8.5c2.2 0 4 1.8 4 4 0 .3-.1.7-.1.9.8.5 1.3 1.5 1.3 2.4 0 1.5-1.2 2.7-2.7 2.7H10z" fill="white" opacity="0.9"/>
+  
+  <!-- 农场建筑简化版 -->
+  <rect x="8" y="20" width="16" height="8" fill="white" opacity="0.8"/>
+  <polygon points="8,20 16,14 24,20" fill="white" opacity="0.9"/>
+  
+  <!-- 窗户 -->
+  <rect x="11" y="22" width="2" height="2" fill="#667eea"/>
+  <rect x="19" y="22" width="2" height="2" fill="#667eea"/>
+  
+  <!-- 门 -->
+  <rect x="14.5" y="24" width="3" height="4" fill="#667eea"/>
+</svg>