feat: 首次推送到Gitea - 完整项目代码 + 安全加固 + 知识库

public/bot-avatars/edu_news.svg

@@ -5,26 +5,25 @@
       <stop offset="0%" stop-color="#e879f9"/>
       <stop offset="100%" stop-color="#ec4899"/>
     </linearGradient>
-    <filter id="shadow" x="-50%" y="-50%" width="200%" height="200%">
-      <feGaussianBlur in="SourceAlpha" stdDeviation="6"/>
-      <feOffset dx="0" dy="4" result="offsetblur"/>
-      <feComponentTransfer><feFuncA type="linear" slope="0.35"/></feComponentTransfer>
-      <feMerge><feMergeNode/><feMergeNode in="SourceGraphic"/></feMerge>
-    </filter>
   </defs>
   <!-- 背景渐变 -->
   <rect width="512" height="512" fill="url(#bg)"/>
   <!-- 装饰图形 -->
-  <circle cx="206.6" cy="96.4" r="30" fill="white" opacity="0.18"/>
-    <rect x="347.3" y="70" width="65" height="98" transform="rotate(58 379.8 119)" fill="white" opacity="0.14"/>
-    <circle cx="420" cy="402" r="71" fill="white" opacity="0.12"/>
-    <polygon points="60,427.6 138.2,470 81.5,460" fill="white" opacity="0.16"/>
+  <circle cx="406" cy="256" r="35" fill="white" opacity="0.15"/>
+    <circle cx="362.06601717798213" cy="362.06601717798213" r="35" fill="white" opacity="0.15"/>
+    <circle cx="256" cy="406" r="35" fill="white" opacity="0.15"/>
+    <circle cx="149.93398282201787" cy="362.06601717798213" r="35" fill="white" opacity="0.15"/>
+    <circle cx="106" cy="256" r="35" fill="white" opacity="0.15"/>
+    <circle cx="149.93398282201787" cy="149.93398282201787" r="35" fill="white" opacity="0.15"/>
+    <circle cx="255.99999999999997" cy="106" r="35" fill="white" opacity="0.15"/>
+    <circle cx="362.0660171779821" cy="149.93398282201787" r="35" fill="white" opacity="0.15"/>
   <!-- 角色徽章 -->
   <rect x="20" y="20" width="92" height="28" rx="14" fill="rgba(255,255,255,0.25)"/>
        <text x="66" y="38" text-anchor="middle" fill="white" font-size="13" font-weight="600" font-family="system-ui">行业专家</text>
-  <!-- 中央大字母 -->
-  <text x="256" y="320" text-anchor="middle" fill="white" font-size="280" font-weight="800" font-family="system-ui,-apple-system,sans-serif" filter="url(#shadow)">教</text>
-  <!-- 右下角 🤖 标识（用 path 画，不依赖 emoji 字体） -->
+  <!-- 中央大字母（带阴影） -->
+  <text x="258" y="322" text-anchor="middle" fill="rgba(0,0,0,0.3)" font-size="280" font-weight="800" font-family="system-ui,-apple-system,sans-serif">教</text>
+  <text x="256" y="320" text-anchor="middle" fill="white" font-size="280" font-weight="800" font-family="system-ui,-apple-system,sans-serif">教</text>
+  <!-- 右下角 🤖 标识 -->
   <g transform="translate(440 440)">
     <circle cx="0" cy="0" r="32" fill="white" opacity="0.95"/>
     <path d="M-12 -4 L-12 8 Q-12 14 -6 14 L6 14 Q12 14 12 8 L12 -4 Q12 -10 6 -10 L-6 -10 Q-12 -10 -12 -4 Z" fill="#e879f9"/>