feat: 增加网页后台管理

WebRTCSignalServerWeb/src/styles/index.css

@@ -0,0 +1,55 @@
+:root {
+  --admin-bg: #f0f2f5;
+  --admin-sidebar-bg: #1b1f2d;
+  --admin-sidebar-active: #3b82f6;
+  --admin-header-bg: #ffffff;
+  --admin-primary: #3b82f6;
+  --admin-text: #1f2937;
+}
+
+* {
+  box-sizing: border-box;
+}
+
+html,
+body,
+#app {
+  height: 100%;
+  margin: 0;
+  padding: 0;
+}
+
+body {
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
+    'Microsoft YaHei', sans-serif;
+  background: var(--admin-bg);
+  color: var(--admin-text);
+}
+
+a {
+  text-decoration: none;
+  color: inherit;
+}
+
+::-webkit-scrollbar {
+  width: 8px;
+  height: 8px;
+}
+
+::-webkit-scrollbar-thumb {
+  background: rgba(0, 0, 0, 0.18);
+  border-radius: 4px;
+}
+
+::-webkit-scrollbar-thumb:hover {
+  background: rgba(0, 0, 0, 0.3);
+}
+
+.page-container {
+  padding: 16px;
+}
+
+.text-muted {
+  color: #909399;
+  font-size: 13px;
+}