初始化模版工程

components/ppt-editor/FloatingToolbar.css

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+/* ─── Floating Toolbar Container ─── */
+.ppt-floating-toolbar {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 6px 8px;
+  background: var(--glass-bg);
+  border: 1px solid var(--glass-border);
+  border-radius: 14px;
+  box-shadow:
+    0 12px 30px var(--editor-shadow),
+    0 0 0 1px color-mix(in srgb, var(--border) 70%, transparent);
+  user-select: none;
+  backdrop-filter: blur(16px);
+}
+
+/* ─── History (Undo / Redo) Section ─── */
+.ppt-floating-toolbar__history {
+  display: flex;
+  align-items: center;
+  gap: 2px;
+}
+
+.ppt-floating-toolbar__btn {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 34px;
+  height: 34px;
+  border: none;
+  border-radius: 8px;
+  background: transparent;
+  color: var(--muted-foreground);
+  cursor: pointer;
+  transition: all 0.15s ease;
+}
+
+.ppt-floating-toolbar__btn:hover:not(:disabled) {
+  background: var(--accent);
+  color: var(--foreground);
+}
+
+.ppt-floating-toolbar__btn:active:not(:disabled) {
+  background: color-mix(in srgb, var(--accent) 86%, transparent);
+}
+
+.ppt-floating-toolbar__btn:disabled {
+  color: color-mix(in srgb, var(--muted-foreground) 70%, transparent);
+  cursor: not-allowed;
+}
+
+/* ─── Divider ─── */
+.ppt-floating-toolbar__divider {
+  width: 1px;
+  height: 22px;
+  background: var(--border);
+  margin: 0 4px;
+}
+
+/* ─── Auto-saving indicator ─── */
+.ppt-floating-toolbar__auto-saving {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  padding: 6px 14px;
+  font-size: 13px;
+  font-weight: 500;
+  color: var(--primary);
+  white-space: nowrap;
+}
+
+/* ─── Spinner animation ─── */
+.ppt-floating-toolbar__spinner {
+  animation: ppt-toolbar-spin 1s linear infinite;
+}
+
+@keyframes ppt-toolbar-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
+
+/* ─── Save button (idle + saving states) ─── */
+.ppt-floating-toolbar__save-btn {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  padding: 6px 16px;
+  border: none;
+  border-radius: 10px;
+  background: var(--primary);
+  color: var(--primary-foreground);
+  font-size: 13px;
+  font-weight: 600;
+  cursor: pointer;
+  white-space: nowrap;
+  transition: all 0.2s ease;
+}
+
+.ppt-floating-toolbar__save-btn:hover:not(:disabled) {
+  background: color-mix(in srgb, var(--primary) 88%, transparent);
+  box-shadow: 0 2px 8px color-mix(in srgb, var(--primary) 35%, transparent);
+}
+
+.ppt-floating-toolbar__save-btn:active:not(:disabled) {
+  transform: scale(0.97);
+}
+
+/* Manual saving state — slightly transparent + disabled look */
+.ppt-floating-toolbar__save-btn--saving {
+  background: color-mix(in srgb, var(--primary) 80%, transparent);
+  opacity: 0.9;
+  cursor: not-allowed;
+}