fix(terminal): improve dimensions handling and add system theme for xterm

💘 Generated with Crush

Assisted-by: MiniMax-M2.7 via Crush <crush@charm.land>

web/src/styles/global.css

@@ -1058,3 +1058,76 @@ input::placeholder { color: var(--text-disabled); }
   word-break: break-word;
   background: var(--bg);
 }
+
+/* === XTerm Custom Styling === */
+/* Styles for xterm.js integrated with Muyue theme */
+.shell-xterm-instance .xterm {
+  padding: 4px 8px;
+}
+
+.shell-xterm-instance .xterm-viewport {
+  background-color: var(--bg-base) !important;
+}
+
+.shell-xterm-instance .xterm-screen {
+  background-color: var(--bg-base);
+}
+
+/* Scrollbar styling for xterm */
+.shell-xterm-instance .xterm-viewport::-webkit-scrollbar {
+  width: 8px;
+}
+
+.shell-xterm-instance .xterm-viewport::-webkit-scrollbar-track {
+  background: var(--bg-surface);
+}
+
+.shell-xterm-instance .xterm-viewport::-webkit-scrollbar-thumb {
+  background: var(--accent-dim);
+  border-radius: 4px;
+}
+
+.shell-xterm-instance .xterm-viewport::-webkit-scrollbar-thumb:hover {
+  background: var(--accent-dark);
+}
+
+/* Selection styling */
+.shell-xterm-instance .xterm-selection {
+  background: var(--accent-dim) !important;
+}
+
+/* Focus ring styling */
+.shell-xterm-instance .xterm:focus .xterm-helper-text-container {
+  box-shadow: none;
+}
+
+/* Ensure consistent font rendering */
+.shell-xterm-instance .xterm .xterm-char-measure-element {
+  font-family: var(--font-mono) !important;
+}
+
+/* Bell animation styling */
+.shell-xterm-instance .xterm-bell {
+  animation: xterm-bell-flash 0.3s ease-out;
+}
+
+@keyframes xterm-bell-flash {
+  0% { opacity: 1; }
+  50% { opacity: 0.5; }
+  100% { opacity: 0; }
+}
+
+/* Cursor styling */
+.shell-xterm-instance .xterm-cursor {
+  outline: none !important;
+}
+
+/* Link styling for web links addon */
+.shell-xterm-instance .xterm-link {
+  color: var(--accent-light) !important;
+  text-decoration: underline;
+}
+
+.shell-xterm-instance .xterm-link:hover {
+  color: var(--accent-muted) !important;
+}