Initial commit: Complete工时统计系统 implementation

src/index.css

@@ -0,0 +1,51 @@
+/* Global Styles */
+* {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+body {
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
+    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
+    sans-serif;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+/* Page Specific Styles */
+.page-container {
+  min-height: calc(100vh - 128px); /* Subtract header and footer height */
+  padding: 2rem 0;
+}
+
+/* Form Styles */
+.form-container {
+  max-width: 800px;
+  margin: 0 auto;
+}
+
+.form-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
+  gap: 1.5rem;
+  margin-bottom: 1.5rem;
+}
+
+@media (max-width: 600px) {
+  .form-grid {
+    grid-template-columns: 1fr;
+  }
+}
+
+/* Data Grid Styles */
+.data-grid-container {
+  max-width: 1200px;
+  margin: 0 auto;
+}
+
+/* Chart Styles */
+.chart-container {
+  max-width: 1000px;
+  margin: 0 auto;
+}