Initial commit: X-Server Mobile enterprise tool system

- Frontend: React 18 + TypeScript + Vite + Ant Design Mobile
- Backend: PHP 8.5 + Webman 2.x + MySQL + Redis
- i18n support: Chinese, English, Russian, Spanish, French
- Approval workflow engine
- Docker development environment
- Feishu integration

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/src/index.css

@@ -0,0 +1,68 @@
+/* 移动端基础样式重置 */
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+html {
+  font-size: 16px; /* 基础字体大小 */
+}
+
+html,
+body {
+  width: 100%;
+  height: 100%;
+}
+
+body {
+  margin: 0;
+  padding: 0;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
+  font-size: 16px; /* 提高基础字体大小 */
+  line-height: 1.5;
+  color: #262626;
+  background-color: #f5f5f5;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  text-size-adjust: 100%; /* 防止 iOS 自动调整字体大小 */
+}
+
+#root {
+  width: 100%;
+  height: 100%;
+}
+
+/* 链接样式 */
+a {
+  color: #1677ff;
+  text-decoration: none;
+}
+
+a:active {
+  color: #0958d9;
+}
+
+/* 按钮重置 */
+button {
+  border: none;
+  background: none;
+  padding: 0;
+  font: inherit;
+  cursor: pointer;
+  outline: none;
+}
+
+input,
+textarea,
+select {
+  font: inherit;
+  outline: none;
+}
+
+/* 安全区域适配 */
+@supports (bottom: env(safe-area-inset-bottom)) {
+  body {
+    padding-bottom: env(safe-area-inset-bottom);
+  }
+}