diff --git a/apps/admin/dist.zip b/apps/admin/dist.zip
index b046de4..4d195bb 100644
Binary files a/apps/admin/dist.zip and b/apps/admin/dist.zip differ
diff --git a/apps/admin/src/sections/lottery/grant-dialog.tsx b/apps/admin/src/sections/lottery/grant-dialog.tsx
index c52dab2..60f6604 100644
--- a/apps/admin/src/sections/lottery/grant-dialog.tsx
+++ b/apps/admin/src/sections/lottery/grant-dialog.tsx
@@ -31,6 +31,16 @@ const grantSchema = z.object({
   source_ref: z.string().trim().min(1),
 });
 
+// 数字输入统一用 type="text" + 该 formatOutput，避开 number 类型 input 的实时钳制问题。
+const numberOutput = (v: string | number): number | undefined => {
+  const s = String(v ?? "").trim();
+  if (s === "") {
+    return;
+  }
+  const n = Number(s);
+  return Number.isNaN(n) ? undefined : n;
+};
+
 type GrantFormValues = z.infer<typeof grantSchema>;
 
 const SOURCE_REF_RANDOM_LENGTH = 6;
@@ -123,10 +133,11 @@ export default function GrantDialog({
                   <FormLabel>{t("grant.userId", "User ID")}</FormLabel>
                   <FormControl>
                     <EnhancedInput
-                      min={1}
+                      formatOutput={numberOutput}
+                      inputMode="numeric"
                       onValueChange={(value) => field.onChange(value)}
                       placeholder={t("grant.userIdPlaceholder", "e.g. 87433")}
-                      type="number"
+                      type="text"
                       value={field.value}
                     />
                   </FormControl>
@@ -148,10 +159,11 @@ export default function GrantDialog({
                   <FormLabel>{t("grant.amount", "Amount")}</FormLabel>
                   <FormControl>
                     <EnhancedInput
-                      min={1}
+                      formatOutput={numberOutput}
+                      inputMode="numeric"
                       onValueChange={(value) => field.onChange(value)}
                       placeholder="1"
-                      type="number"
+                      type="text"
                       value={field.value}
                     />
                   </FormControl>
diff --git a/apps/admin/src/sections/lottery/prize-form.tsx b/apps/admin/src/sections/lottery/prize-form.tsx
index b1511d6..3866492 100644
--- a/apps/admin/src/sections/lottery/prize-form.tsx
+++ b/apps/admin/src/sections/lottery/prize-form.tsx
@@ -46,6 +46,18 @@ const CENTS_PER_YUAN = 100;
 // 概率单位约定：weight 1000 = 1%（支持 3 位小数概率，总权重 100000 = 100%）。
 const WEIGHT_PER_PERCENT = 1000;
 
+// numberOutput 把 text 输入转成数字（空/非法→undefined）。数字输入统一用 type="text"
+// + 该 formatOutput，避开 EnhancedInput 在 type="number" 下 min/max 实时钳制导致的
+// “输入 0 / 改中间位跳变”问题；提交仍是数字，后端收 int。
+const numberOutput = (v: string | number): number | undefined => {
+  const s = String(v ?? "").trim();
+  if (s === "") {
+    return;
+  }
+  const n = Number(s);
+  return Number.isNaN(n) ? undefined : n;
+};
+
 type TranslateFn = (key: string, defaultValue: string) => string;
 
 const PRIZE_TYPE_OPTIONS: {
@@ -442,9 +454,9 @@ export default function PrizeForm({
                   "duration_days",
                   t("prize.durationDays", "Duration (days)"),
                   {
-                    type: "number",
-                    min: 1,
-                    step: 1,
+                    type: "text",
+                    inputMode: "numeric",
+                    formatOutput: numberOutput,
                     placeholder: t("prize.durationDaysPlaceholder", "e.g. 1"),
                     suffix: t("prize.daysSuffix", "days"),
                   }
@@ -538,9 +550,9 @@ export default function PrizeForm({
                     "claim_ttl_hours",
                     t("prize.claimTtlHours", "Claim window (hours)"),
                     {
-                      type: "number",
-                      min: 1,
-                      step: 1,
+                      type: "text",
+                      inputMode: "numeric",
+                      formatOutput: numberOutput,
                       placeholder: "168",
                       suffix: t("prize.hoursSuffix", "hours"),
                     },
@@ -561,10 +573,9 @@ export default function PrizeForm({
                 "weight",
                 t("prize.weight", "Win probability (%)"),
                 {
-                  type: "number",
-                  min: 0,
-                  max: 100,
-                  step: 0.001,
+                  type: "text",
+                  inputMode: "decimal",
+                  formatOutput: numberOutput,
                   suffix: "%",
                   disabled: isFallback,
                 },
@@ -587,9 +598,9 @@ export default function PrizeForm({
                   "total_stock",
                   t("prize.totalStock", "Total Stock"),
                   {
-                    type: "number",
-                    min: 1,
-                    step: 1,
+                    type: "text",
+                    inputMode: "numeric",
+                    formatOutput: numberOutput,
                     placeholder: t("prize.totalStockPlaceholder", "e.g. 100"),
                   }
                 )}