style: 优化选角面板间距与角色卡片布局

src/admin.css

@@ -221,6 +221,10 @@ body {
 .workspace-tools-body {
     padding: 20px;
 }
+/* 身份说明与折叠入口分开，避免正文紧贴下一组操作。 */
+.identity-tools-intro {
+    margin-bottom: 24px;
+}
 .workspace-tools-body .storyboard-controls,
 .workspace-tools-body .production-controls {
     display: grid;
@@ -886,7 +890,6 @@ body {
 .n-button:disabled {
     opacity: 1;
 }
-.n-button.casting-item,
 .n-button.image-history-item {
     height: auto;
     white-space: normal;
@@ -897,9 +900,59 @@ body {
     text-align: left;
     overflow: hidden;
 }
-.n-button.casting-item .n-button__content {
+/* 选角进度按抽屉实际宽度排列；按钮尺寸显式覆盖组件默认值。 */
+.casting-list {
+    display: grid;
+    grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
+    gap: 12px;
+    margin-top: 24px;
+    padding-top: 20px;
+    border-top: 1px solid var(--app-border);
+}
+.n-button.casting-item {
     width: 100%;
+    min-width: 0;
+    height: auto;
+    min-height: 76px;
+    padding: 12px 14px;
+    white-space: normal;
+    text-align: left;
+    background: var(--app-surface);
+}
+.n-button.casting-item.selected {
+    background: var(--app-subtle);
+    box-shadow: inset 3px 0 0 var(--app-ink);
+}
+.n-button.casting-item .n-button__content {
+    display: flex;
+    width: 100%;
+    min-width: 0;
+    align-items: center;
     justify-content: space-between;
+    gap: 16px;
+    text-align: left;
+}
+.casting-item-identity {
+    display: flex;
+    flex-direction: column;
+    gap: 5px;
+    min-width: 0;
+}
+.casting-item-name {
+    font-size: 14px;
+    font-weight: 500;
+    line-height: 1.5;
+    overflow-wrap: anywhere;
+}
+.casting-item-ref {
+    color: var(--app-muted);
+    font-family: ui-monospace, monospace;
+    font-size: 11px;
+    line-height: 1.5;
+    overflow-wrap: anywhere;
+}
+.casting-item-status {
+    flex-shrink: 0;
 }
 .search-field {
     padding: 0;