feat: 初始提交

frontend/src/assets/main.css

@@ -0,0 +1,88 @@
+@import "tailwindcss";
+@plugin "@tailwindcss/typography";
+/* 原始frontend-demo的样式，直接复制 */
+body {
+    font-family: 'Noto Sans SC', 'Inter', sans-serif;
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+    background-color: #F8F7F2; /* A light, neutral background */
+}
+
+/* 自定义滚动条 */
+::-webkit-scrollbar { width: 8px; }
+::-webkit-scrollbar-track { background: #f1f1f1; }
+::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 10px; }
+::-webkit-scrollbar-thumb:hover { background: #a3a8b0; }
+
+/* 加载动画 */
+.loader {
+    border: 4px solid #f3f3f3;
+    border-top: 4px solid #6366f1;
+    border-radius: 50%;
+    width: 40px;
+    height: 40px;
+    animation: spin 1s linear infinite;
+}
+
+@keyframes spin {
+    0% { transform: rotate(0deg); }
+    100% { transform: rotate(360deg); }
+}
+
+/* 元素渐入动画 */
+.fade-in {
+    animation: fadeIn 0.8s ease-in-out;
+}
+@keyframes fadeIn {
+    from { opacity: 0; transform: translateY(20px); }
+    to { opacity: 1; transform: translateY(0); }
+}
+
+/* 聊天气泡样式 */
+.chat-bubble-ai {
+    background-color: #f3f4f6;
+    color: #1f2937;
+    border-radius: 20px 20px 20px 5px;
+}
+.chat-bubble-user {
+    background-color: #6366f1;
+    color: #ffffff;
+    border-radius: 20px 20px 5px 20px;
+}
+
+
+@layer base {
+  button,
+  a[href] {
+    cursor: pointer;
+  }
+}
+
+/* Markdown 排版优化（配合 Typography 插件的 prose 类） */
+.prose {
+  max-width: none;
+}
+
+/* 代码块与内联代码 */
+.prose pre {
+  overflow: auto;
+}
+.prose code {
+  white-space: pre-wrap;
+  word-break: break-word;
+}
+
+/* 表格滚动 */
+.prose table {
+  display: block;
+  width: max-content;
+  max-width: 100%;
+  overflow-x: auto;
+}
+
+/* 图片自适应 */
+.prose img {
+  max-width: 100%;
+  height: auto;
+  border-radius: 0.375rem; /* rounded-md */
+}