diff --git a/apps/kimi-web/src/components/ConversationPane.vue b/apps/kimi-web/src/components/ConversationPane.vue
index 018deadb8..ede783b44 100644
--- a/apps/kimi-web/src/components/ConversationPane.vue
+++ b/apps/kimi-web/src/components/ConversationPane.vue
@@ -871,7 +871,9 @@ onUnmounted(() => {
   display: flex;
   flex-direction: column;
   gap: 10px;
-  width: 260px;
+  /* Wider than the old 260px — the todo/task cards were cramped. */
+  width: 300px;
+  max-width: calc(100vw - 32px);
 }
 @media (max-width: 1199px) {
   .float-stack { display: none; }
diff --git a/apps/kimi-web/src/components/TasksCard.vue b/apps/kimi-web/src/components/TasksCard.vue
index 32135c4aa..9cf7bf0c2 100644
--- a/apps/kimi-web/src/components/TasksCard.vue
+++ b/apps/kimi-web/src/components/TasksCard.vue
@@ -3,11 +3,14 @@
      of the conversation pane, codex-style). Shows the running tasks only;
      clicking the header jumps to the full ~/tasks tab. -->
 <script setup lang="ts">
-import { computed } from 'vue';
+import { computed, ref } from 'vue';
 import { useI18n } from 'vue-i18n';
 import type { TaskItem } from '../types';
 
-const MAX_ROWS = 4;
+// Show plenty of rows before truncating — the old cap of 4 collapsed even a
+// handful of tasks into a "+N" when the card had room. Beyond this the list
+// scrolls (see .tk-list max-height) instead of growing without bound.
+const MAX_ROWS = 12;
 
 const props = defineProps<{
   tasks: TaskItem[];
@@ -19,6 +22,7 @@ const emit = defineEmits<{
 
 const { t } = useI18n();
 
+const collapsed = ref(false);
 const running = computed(() => props.tasks.filter((tk) => tk.state === 'run'));
 const shown = computed(() => running.value.slice(0, MAX_ROWS));
 const overflow = computed(() => running.value.length - shown.value.length);
@@ -26,12 +30,25 @@ const overflow = computed(() => running.value.length - shown.value.length);
 
 <template>
   <div class="tasks-card">
-    <button class="tk-head" type="button" :title="t('tasks.openTab')" @click="emit('open')">
-      <span class="tk-dot" aria-hidden="true" />
-      <span class="tk-title">{{ t('sidebar.tabTasks') }}</span>
-      <span class="tk-count">{{ running.length }}</span>
-    </button>
-    <div class="tk-list">
+    <div class="tk-head">
+      <button class="tk-open" type="button" :title="t('tasks.openTab')" @click="emit('open')">
+        <span class="tk-dot" aria-hidden="true" />
+        <span class="tk-title">{{ t('sidebar.tabTasks') }}</span>
+        <span class="tk-count">{{ running.length }}</span>
+      </button>
+      <button
+        class="tk-collapse"
+        type="button"
+        :aria-expanded="!collapsed"
+        :title="collapsed ? t('tasks.expand') : t('tasks.collapse')"
+        @click="collapsed = !collapsed"
+      >
+        <svg class="tk-chev" :class="{ open: !collapsed }" viewBox="0 0 16 16" width="11" height="11" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
+          <polyline points="4,6 8,10 12,6" />
+        </svg>
+      </button>
+    </div>
+    <div v-if="!collapsed" class="tk-list">
       <div v-for="tk in shown" :key="tk.id" class="tk-row">
         <span class="tk-name">{{ tk.name }}</span>
         <span class="tk-time">{{ tk.timing }}</span>
@@ -53,18 +70,40 @@ const overflow = computed(() => running.value.length - shown.value.length);
 .tk-head {
   display: flex;
   align-items: center;
-  gap: 6px;
   width: 100%;
-  padding: 6px 10px;
+  color: var(--muted);
+  font-family: var(--mono);
+  font-size: 12.5px;
+  line-height: 1.4;
+}
+.tk-open {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  flex: 1;
+  min-width: 0;
+  padding: 7px 4px 7px 10px;
   background: none;
   border: none;
   cursor: pointer;
-  color: var(--muted);
-  font-family: var(--mono);
-  font-size: 12px;
-  line-height: 1.4;
+  color: inherit;
+  font: inherit;
 }
-.tk-head:hover { color: var(--ink); }
+.tk-open:hover { color: var(--ink); }
+.tk-collapse {
+  flex: none;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 7px 10px;
+  background: none;
+  border: none;
+  cursor: pointer;
+  color: var(--faint);
+}
+.tk-collapse:hover { color: var(--ink); }
+.tk-chev { transition: transform 0.15s; transform: rotate(-90deg); }
+.tk-chev.open { transform: none; }
 .tk-title { font-weight: 700; letter-spacing: 0.04em; }
 .tk-count { color: var(--faint); }
 
@@ -84,6 +123,8 @@ const overflow = computed(() => running.value.length - shown.value.length);
 .tk-list {
   border-top: 1px solid var(--line);
   padding: 4px 10px 6px;
+  max-height: 45vh;
+  overflow-y: auto;
 }
 .tk-row {
   display: flex;
diff --git a/apps/kimi-web/src/components/TodoCard.vue b/apps/kimi-web/src/components/TodoCard.vue
index 4f724e2d1..a16314a13 100644
--- a/apps/kimi-web/src/components/TodoCard.vue
+++ b/apps/kimi-web/src/components/TodoCard.vue
@@ -16,7 +16,16 @@ const props = defineProps<{
 
 const { t } = useI18n();
 
+// Collapse only applies to the floating CARD (it overlays the transcript). In
+// the dedicated ~/todo TAB the whole pane IS the list, so collapsing it would
+// just hide everything the user opened the tab to see — keep it always open.
 const collapsed = ref(false);
+const canCollapse = computed(() => !props.inline);
+const showList = computed(() => props.inline || !collapsed.value);
+
+function toggle(): void {
+  if (canCollapse.value) collapsed.value = !collapsed.value;
+}
 
 const doneCount = computed(() => props.todos.filter((td) => td.status === 'done').length);
 
@@ -27,7 +36,7 @@ function glyph(status: TodoView['status']): string {
 
 <template>
   <div class="todo-card" :class="{ 'tab-mode': inline }">
-    <button class="tc-head" type="button" @click="collapsed = !collapsed">
+    <component :is="canCollapse ? 'button' : 'div'" class="tc-head" :class="{ static: !canCollapse }" :type="canCollapse ? 'button' : undefined" @click="toggle">
       <svg viewBox="0 0 16 16" width="13" height="13" fill="none" stroke="currentColor" stroke-width="1.4" aria-hidden="true">
         <polyline points="2,4.5 3.5,6 5.5,3" />
         <polyline points="2,11 3.5,12.5 5.5,9.5" />
@@ -36,12 +45,12 @@ function glyph(status: TodoView['status']): string {
       </svg>
       <span class="tc-title">{{ t('tasks.todoTag') }}</span>
       <span v-if="todos.length > 0" class="tc-count">{{ doneCount }}/{{ todos.length }}</span>
-      <svg v-if="todos.length > 0" class="tc-chev" :class="{ open: !collapsed }" viewBox="0 0 16 16" width="11" height="11" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
+      <svg v-if="canCollapse && todos.length > 0" class="tc-chev" :class="{ open: !collapsed }" viewBox="0 0 16 16" width="11" height="11" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
         <polyline points="4,6 8,10 12,6" />
       </svg>
-    </button>
+    </component>
 
-    <div v-if="!collapsed" class="tc-list">
+    <div v-if="showList" class="tc-list">
       <div v-if="todos.length === 0" class="tc-empty">{{ t('tasks.emptyTodo') }}</div>
       <div v-for="(td, i) in todos" :key="i" class="tc-row" :class="`s-${td.status}`">
         <span class="tc-glyph">{{ glyph(td.status) }}</span>
@@ -91,6 +100,9 @@ function glyph(status: TodoView['status']): string {
   line-height: 1.4;
 }
 .tc-head:hover { color: var(--ink); }
+/* Tab-mode header is a static label, not a collapse toggle. */
+.tc-head.static { cursor: default; }
+.tc-head.static:hover { color: var(--muted); }
 .tc-title { font-weight: 700; letter-spacing: 0.04em; }
 .tc-count { color: var(--faint); }
 .tc-chev {
diff --git a/apps/kimi-web/src/i18n/locales/en/tasks.ts b/apps/kimi-web/src/i18n/locales/en/tasks.ts
index eac6f4d05..8d647e1d5 100644
--- a/apps/kimi-web/src/i18n/locales/en/tasks.ts
+++ b/apps/kimi-web/src/i18n/locales/en/tasks.ts
@@ -9,4 +9,6 @@ export default {
   emptyTasks: 'No background tasks running',
   emptyTodo: 'No todos yet',
   openTab: 'Open the tasks tab',
+  collapse: 'Collapse',
+  expand: 'Expand',
 } as const;
diff --git a/apps/kimi-web/src/i18n/locales/zh/tasks.ts b/apps/kimi-web/src/i18n/locales/zh/tasks.ts
index 38d7d0d18..bf558cadd 100644
--- a/apps/kimi-web/src/i18n/locales/zh/tasks.ts
+++ b/apps/kimi-web/src/i18n/locales/zh/tasks.ts
@@ -9,4 +9,6 @@ export default {
   emptyTasks: '暂无后台任务',
   emptyTodo: '暂无待办事项',
   openTab: '查看全部后台任务',
+  collapse: '折叠',
+  expand: '展开',
 };