diff --git a/src/components/chat/AgentTurn.tsx b/src/components/chat/AgentTurn.tsx
index 7990d0f..b9bd534 100644
--- a/src/components/chat/AgentTurn.tsx
+++ b/src/components/chat/AgentTurn.tsx
@@ -51,6 +51,7 @@ import FolderOpenRounded from "@mui/icons-material/FolderOpenRounded";
 import CheckCircleRounded from "@mui/icons-material/CheckCircleRounded";
 import BlockRounded from "@mui/icons-material/BlockRounded";
 import PushPinRounded from "@mui/icons-material/PushPinRounded";
+import EditNoteRounded from "@mui/icons-material/EditNoteRounded";
 import KeyboardArrowDownRounded from "@mui/icons-material/KeyboardArrowDownRounded";
 import KeyboardArrowUpRounded from "@mui/icons-material/KeyboardArrowUpRounded";
 import AssignmentTurnedInRounded from "@mui/icons-material/AssignmentTurnedInRounded";
@@ -713,26 +714,30 @@ const QuestionRequestCard = ({
   const isSubmitting = questionRequest.status === "submitting";
   const statusColor = getQuestionStatusColor(questionRequest.status, theme);
   const [selected, setSelected] = React.useState<Record<number, string[]>>({});
+  const [customSelected, setCustomSelected] = React.useState<Record<number, boolean>>({});
   const [custom, setCustom] = React.useState<Record<number, string>>({});
 
   const answers = React.useMemo(
     () =>
       questionRequest.questions.map((question, index) => {
         const selectedAnswers = selected[index] ?? [];
+        const isCustomSelected =
+          customSelected[index] === true ||
+          (question.custom !== false && question.options.length === 0);
         const customAnswer = custom[index]?.trim();
-        return customAnswer ? [...selectedAnswers, customAnswer] : selectedAnswers;
+        return isCustomSelected && customAnswer
+          ? [...selectedAnswers, customAnswer]
+          : selectedAnswers;
       }),
-    [custom, questionRequest.questions, selected],
+    [custom, customSelected, questionRequest.questions, selected],
   );
 
   const canSubmit =
     isEditable &&
     questionRequest.questions.length > 0 &&
-    questionRequest.questions.every((question, index) => {
+    questionRequest.questions.every((_, index) => {
       const answer = answers[index] ?? [];
-      const hasInput = answer.some((item) => item.trim().length > 0);
-      const canAnswer = question.options.length > 0 || question.custom === true;
-      return canAnswer && hasInput;
+      return answer.some((item) => item.trim().length > 0);
     });
 
   const answerSummary = (questionRequest.answers ?? [])
@@ -809,12 +814,22 @@ const QuestionRequestCard = ({
       <Stack spacing={1.3} sx={{ px: 1.5, py: 1.35, pl: 1.75 }}>
         {questionRequest.questions.map((question, index) => {
           const selectedAnswers = selected[index] ?? [];
+          const isCustomEnabled = question.custom !== false;
+          const isCustomSelected =
+            customSelected[index] === true ||
+            (isCustomEnabled && question.options.length === 0);
           const setQuestionAnswers = (nextAnswers: string[]) => {
             setSelected((current) => ({
               ...current,
               [index]: nextAnswers,
             }));
           };
+          const setQuestionCustomSelected = (checked: boolean) => {
+            setCustomSelected((current) => ({
+              ...current,
+              [index]: checked,
+            }));
+          };
 
           return (
             <Box
@@ -884,7 +899,10 @@ const QuestionRequestCard = ({
                         size="small"
                         variant={checked ? "contained" : "outlined"}
                         disabled={!isEditable || isSubmitting}
-                        onClick={() => setQuestionAnswers([option.label])}
+                        onClick={() => {
+                          setQuestionAnswers([option.label]);
+                          setQuestionCustomSelected(false);
+                        }}
                         startIcon={
                           checked ? (
                             <CheckCircleRounded fontSize="small" />
@@ -921,28 +939,145 @@ const QuestionRequestCard = ({
                       </Button>
                     );
                   })}
+                  {isCustomEnabled ? (
+                    question.multiple ? (
+                      <FormControlLabel
+                        disabled={!isEditable || isSubmitting}
+                        control={
+                          <Checkbox
+                            size="small"
+                            checked={isCustomSelected}
+                            onChange={(event) =>
+                              setQuestionCustomSelected(event.target.checked)
+                            }
+                            sx={{
+                              p: 0.5,
+                              color: alpha("#0288d1", 0.55),
+                              "&.Mui-checked": { color: "#0288d1" },
+                            }}
+                          />
+                        }
+                        label={
+                          <Stack direction="row" spacing={0.75} alignItems="center">
+                            <EditNoteRounded sx={{ fontSize: 18, color: "#0288d1" }} />
+                            <Typography variant="body2" fontWeight={800}>
+                              自定义回答
+                            </Typography>
+                          </Stack>
+                        }
+                        sx={{
+                          alignItems: "center",
+                          minHeight: 38,
+                          m: 0,
+                          px: 0.75,
+                          py: 0.25,
+                          borderRadius: 2,
+                          border: `1px solid ${
+                            isCustomSelected ? "#0288d1" : alpha("#0288d1", 0.18)
+                          }`,
+                          bgcolor: isCustomSelected
+                            ? alpha("#0288d1", 0.1)
+                            : alpha("#fff", 0.45),
+                          transition: "background-color 0.18s ease, border-color 0.18s ease",
+                          "&:hover": {
+                            bgcolor: isCustomSelected
+                              ? alpha("#0288d1", 0.13)
+                              : alpha("#0288d1", 0.07),
+                          },
+                          "& .MuiFormControlLabel-label": {
+                            color: isCustomSelected ? "#0277bd" : "text.primary",
+                          },
+                        }}
+                      />
+                    ) : (
+                      <Button
+                        size="small"
+                        variant={isCustomSelected ? "contained" : "outlined"}
+                        disabled={!isEditable || isSubmitting}
+                        onClick={() => {
+                          setQuestionAnswers([]);
+                          setQuestionCustomSelected(true);
+                        }}
+                        startIcon={
+                          isCustomSelected ? (
+                            <CheckCircleRounded fontSize="small" />
+                          ) : (
+                            <EditNoteRounded fontSize="small" />
+                          )
+                        }
+                        sx={{
+                          justifyContent: "flex-start",
+                          minHeight: 38,
+                          borderRadius: 2,
+                          textTransform: "none",
+                          fontWeight: 800,
+                          bgcolor: isCustomSelected ? "#0288d1" : alpha("#fff", 0.45),
+                          borderColor: isCustomSelected
+                            ? "#0288d1"
+                            : alpha("#0288d1", 0.22),
+                          "&:hover": {
+                            bgcolor: isCustomSelected
+                              ? "#0277bd"
+                              : alpha("#0288d1", 0.08),
+                          },
+                        }}
+                      >
+                        <Box sx={{ textAlign: "left", minWidth: 0 }}>
+                          <Typography variant="body2" fontWeight={800}>
+                            自定义回答
+                          </Typography>
+                        </Box>
+                      </Button>
+                    )
+                  ) : null}
                 </Stack>
               ) : null}
 
-              {question.custom ? (
-                <TextField
-                  multiline
-                  minRows={2}
-                  maxRows={5}
-                  fullWidth
-                  size="small"
-                  disabled={!isEditable || isSubmitting}
-                  value={custom[index] ?? ""}
-                  onChange={(event) =>
-                    setCustom((current) => ({
-                      ...current,
-                      [index]: event.target.value,
-                    }))
-                  }
-                  placeholder="补充说明"
-                  sx={{ mt: 1 }}
-                />
-              ) : null}
+              <Collapse in={isCustomEnabled && isCustomSelected} timeout="auto" unmountOnExit>
+                <Box
+                  sx={{
+                    mt: 0.85,
+                    px: 1.15,
+                    py: 0.85,
+                    borderRadius: 2.5,
+                    bgcolor: alpha("#fff", 0.62),
+                    border: `1px solid ${alpha("#fff", 0.82)}`,
+                    boxShadow: `0 8px 22px ${alpha("#000", 0.045)}, 0 0 0 1px ${alpha("#0288d1", 0.05)} inset`,
+                    backdropFilter: "blur(18px)",
+                  }}
+                >
+                  <TextField
+                    multiline
+                    minRows={2}
+                    maxRows={5}
+                    fullWidth
+                    variant="standard"
+                    disabled={!isEditable || isSubmitting}
+                    value={custom[index] ?? ""}
+                    onChange={(event) =>
+                      setCustom((current) => ({
+                        ...current,
+                        [index]: event.target.value,
+                      }))
+                    }
+                    placeholder="输入自定义回答"
+                    InputProps={{
+                      disableUnderline: true,
+                      sx: {
+                        alignItems: "flex-start",
+                        fontSize: "0.88rem",
+                        lineHeight: 1.55,
+                        fontWeight: 500,
+                        color: "text.primary",
+                        "& textarea::placeholder": {
+                          color: alpha(theme.palette.text.primary, 0.38),
+                          opacity: 1,
+                        },
+                      },
+                    }}
+                  />
+                </Box>
+              </Collapse>
             </Box>
           );
         })}
diff --git a/src/components/chat/hooks/useAgentChatSession.test.tsx b/src/components/chat/hooks/useAgentChatSession.test.tsx
index 65b24e8..7948242 100644
--- a/src/components/chat/hooks/useAgentChatSession.test.tsx
+++ b/src/components/chat/hooks/useAgentChatSession.test.tsx
@@ -785,6 +785,29 @@ describe("useAgentChatSession", () => {
             ],
             createdAt: 1001,
           } satisfies StreamEvent);
+          onEvent({
+            type: "permission_request",
+            sessionId: "session-1",
+            requestId: "perm-abort",
+            permission: "bash",
+            patterns: ["npm test"],
+            metadata: { command: "npm test" },
+            always: ["npm test"],
+            createdAt: 1002,
+          } satisfies StreamEvent);
+          onEvent({
+            type: "question_request",
+            sessionId: "session-1",
+            requestId: "question-abort",
+            questions: [
+              {
+                header: "范围",
+                question: "请选择范围",
+                options: [{ label: "城区", description: "中心城区" }],
+              },
+            ],
+            createdAt: 1003,
+          } satisfies StreamEvent);
 
           signal?.addEventListener("abort", () => {
             reject(new Error("aborted"));
@@ -842,6 +865,22 @@ describe("useAgentChatSession", () => {
             ],
           }),
         ],
+        permissions: [
+          expect.objectContaining({
+            requestId: "perm-abort",
+            status: "rejected",
+            repliedAt: expect.any(Number),
+            error: undefined,
+          }),
+        ],
+        questions: [
+          expect.objectContaining({
+            requestId: "question-abort",
+            status: "rejected",
+            repliedAt: expect.any(Number),
+            error: undefined,
+          }),
+        ],
       }),
     );
     expect(abortAgentChat).toHaveBeenCalledWith("session-1");
diff --git a/src/components/chat/hooks/useAgentChatSession.ts b/src/components/chat/hooks/useAgentChatSession.ts
index 19e0231..b49bcef 100644
--- a/src/components/chat/hooks/useAgentChatSession.ts
+++ b/src/components/chat/hooks/useAgentChatSession.ts
@@ -217,7 +217,7 @@ const getQuestionContentSignature = (
         description: option.description,
       })),
       multiple: question.multiple ?? false,
-      custom: question.custom ?? false,
+      custom: question.custom !== false,
     })),
   );
 
@@ -366,12 +366,64 @@ const upsertTodoUpdate = (
   },
 ];
 
+const rejectOpenPermissionsAfterAbort = (
+  permissions: AgentPermissionRequest[] | undefined,
+) => {
+  if (!permissions?.length) return permissions;
+  let changed = false;
+  const nextPermissions = permissions.map((permission) => {
+    if (
+      permission.status !== "pending" &&
+      permission.status !== "submitting" &&
+      permission.status !== "error"
+    ) {
+      return permission;
+    }
+    changed = true;
+    return {
+      ...permission,
+      status: "rejected" as const,
+      repliedAt: Date.now(),
+      error: undefined,
+    };
+  });
+  return changed ? nextPermissions : permissions;
+};
+
+const rejectOpenQuestionsAfterAbort = (
+  questions: AgentQuestionRequest[] | undefined,
+) => {
+  if (!questions?.length) return questions;
+  let changed = false;
+  const nextQuestions = questions.map((question) => {
+    if (
+      question.status !== "pending" &&
+      question.status !== "submitting" &&
+      question.status !== "error"
+    ) {
+      return question;
+    }
+    changed = true;
+    return {
+      ...question,
+      status: "rejected" as const,
+      repliedAt: Date.now(),
+      error: undefined,
+    };
+  });
+  return changed ? nextQuestions : questions;
+};
+
 const finalizeAssistantMessageAfterAbort = (message: Message): Message => {
   const completedProgress = completeRunningProgress(message.progress);
   const cancelledTodos = cancelRunningTodos(message.todos);
+  const rejectedPermissions = rejectOpenPermissionsAfterAbort(message.permissions);
+  const rejectedQuestions = rejectOpenQuestionsAfterAbort(message.questions);
   const hasVisibleOutput =
     message.content.trim().length > 0 ||
     Boolean(message.artifacts?.length) ||
+    Boolean(rejectedPermissions?.length) ||
+    Boolean(rejectedQuestions?.length) ||
     Boolean(completedProgress?.length) ||
     Boolean(cancelledTodos?.length);
 
@@ -384,6 +436,8 @@ const finalizeAssistantMessageAfterAbort = (message: Message): Message => {
     content: message.content || "⚠️ **请求已中断**",
     isError: true,
     progress: completedProgress,
+    permissions: rejectedPermissions,
+    questions: rejectedQuestions,
     todos: cancelledTodos,
   };
 };