fix(HEL-114): P3a验收三条整改——选股抽屉分类胶囊横排+策略列表辨识度/聊天输入区键盘避让/追问与预置胶囊渲染

Co-authored-by: multica-agent <github@multica.ai>

app/frontend/m/css/features.css

@@ -2323,6 +2323,8 @@
   white-space: nowrap;
 }
 .m-chat-preset-list .m-source-tab {
+  flex: 0 0 auto;
+  white-space: nowrap;
   border: 1px solid var(--border-strong);
   background: var(--surface);
   color: var(--text-secondary);
@@ -2344,6 +2346,11 @@
   max-width: 82%;
 }
 .m-chat-followup-row .m-source-tab {
+  flex: 0 0 auto;
+  white-space: nowrap;
+  max-width: 100%;
+  overflow: hidden;
+  text-overflow: ellipsis;
   border: 1px solid var(--border-strong);
   background: var(--surface);
   color: var(--text-secondary);
@@ -2374,7 +2381,6 @@
   border-top: 1px solid var(--border);
   /* 键盘弹起时由 --m-keyboard-inset 推上 */
   transform: translateY(calc(-1 * var(--m-keyboard-inset, 0px)));
-  padding-bottom: calc(8px + var(--mobile-safe-bottom) + var(--m-keyboard-inset, 0px));
 }
 
 .m-chat-input-wrap {
@@ -2613,6 +2619,29 @@
   margin-bottom: 8px;
   flex-wrap: wrap;
 }
+.m-screener-drawer-cats .m-source-tab {
+  flex: 0 0 auto;
+  white-space: nowrap;
+  height: 32px;
+  border-radius: 999px;
+  padding: 0 14px;
+  font-size: 13px;
+}
+.m-screener-drawer-section {
+  display: flex;
+  align-items: baseline;
+  justify-content: space-between;
+  margin: 4px 0 8px;
+}
+.m-screener-drawer-section-title {
+  font-size: var(--font-size-label);
+  font-weight: 600;
+  color: var(--text-secondary);
+}
+.m-screener-drawer-section-count {
+  font-size: 12px;
+  color: var(--text-tertiary);
+}
 .m-screener-drawer-list {
   display: flex;
   flex-direction: column;
@@ -2633,6 +2662,7 @@
   color: var(--text-primary);
 }
 .m-screener-drawer-row:active { background: var(--surface-hover); }
+.m-screener-drawer-row.is-current { background: var(--surface-selected); }
 .m-screener-drawer-main {
   flex: 1 1 auto;
   min-width: 0;