fix(blindbox): 周末契约页输入框无法输入 — 非受控输入 + 全局 input 样式

- 创建/加入房间输入改为 ref + defaultValue，提交时从 DOM 取值，避免受控 state 导致无法打字
- globals: input/textarea 增加 user-select: text !important、touch-action: manipulation
- Input 组件: cursor-text、touch-manipulation、min-w-0、autoComplete=off

src/app/blindbox/page.tsx

@@ -1,6 +1,6 @@
 "use client";
 
-import { useState, useEffect, useCallback } from "react";
+import { useState, useEffect, useCallback, useRef } from "react";
 import { useRouter } from "next/navigation";
 import { motion, AnimatePresence } from "framer-motion";
 import {
@@ -38,9 +38,10 @@ export default function BlindboxLobbyPage() {
   const [rooms, setRooms] = useState<RoomSummary[]>([]);
   const [loading, setLoading] = useState(true);
 
-  const [createName, setCreateName] = useState("");
+  const createNameRef = useRef<HTMLInputElement>(null);
+  const joinCodeRef = useRef<HTMLInputElement>(null);
+  const [joinCodeLength, setJoinCodeLength] = useState(0);
   const [creating, setCreating] = useState(false);
-  const [joinCode, setJoinCode] = useState("");
   const [joining, setJoining] = useState(false);
   const [error, setError] = useState("");
   const [loadError, setLoadError] = useState(false);
@@ -64,20 +65,23 @@ export default function BlindboxLobbyPage() {
     return () => window.removeEventListener("nowhatever_auth", handler);
   }, []);
 
-  const fetchRooms = useCallback(async () => {
+  const fetchRooms = useCallback(async (silent = false) => {
     const p = getCachedProfile();
     if (!p) return;
+    if (!silent) {
       setLoading(true);
       setLoadError(false);
+    }
     try {
       const res = await fetch(`/api/blindbox/rooms?userId=${p.id}`);
       if (!res.ok) throw new Error();
       const data = await res.json();
       setRooms(Array.isArray(data.rooms) ? data.rooms : []);
+      setLoadError(false);
     } catch {
-      setLoadError(true);
+      if (!silent) setLoadError(true);
     } finally {
-      setLoading(false);
+      if (!silent) setLoading(false);
     }
   }, []);
 
@@ -86,6 +90,17 @@ export default function BlindboxLobbyPage() {
     else setLoading(false);
   }, [loggedIn, fetchRooms]);
 
+  useEffect(() => {
+    if (!loggedIn) return;
+    const onFocus = () => fetchRooms(true);
+    window.addEventListener("focus", onFocus);
+    return () => window.removeEventListener("focus", onFocus);
+  }, [loggedIn, fetchRooms]);
+
+  useEffect(() => {
+    if (rooms.length > 0) setJoinCodeLength(0);
+  }, [rooms.length]);
+
   const handleAuth = (p: UserProfile) => {
     setProfile(p);
     setLoggedIn(true);
@@ -94,13 +109,14 @@ export default function BlindboxLobbyPage() {
 
   const handleCreate = async () => {
     if (creating || !profile) return;
+    const name = createNameRef.current?.value?.trim() ?? "";
     setCreating(true);
     setError("");
     try {
       const res = await fetch("/api/blindbox/room", {
         method: "POST",
         headers: { "Content-Type": "application/json" },
-        body: JSON.stringify({ userId: profile.id, name: createName.trim() || undefined }),
+        body: JSON.stringify({ userId: profile.id, name: name || undefined }),
       });
       const data = await res.json();
       if (!res.ok) throw new Error(data.error);
@@ -113,14 +129,15 @@ export default function BlindboxLobbyPage() {
   };
 
   const handleJoin = async () => {
-    if (joining || !profile || !joinCode.trim()) return;
+    const code = joinCodeRef.current?.value?.toUpperCase().trim().slice(0, 6) ?? "";
+    if (joining || !profile || code.length < 6) return;
     setJoining(true);
     setError("");
     try {
       const res = await fetch("/api/blindbox/room/join", {
         method: "POST",
         headers: { "Content-Type": "application/json" },
-        body: JSON.stringify({ userId: profile.id, code: joinCode.trim() }),
+        body: JSON.stringify({ userId: profile.id, code }),
       });
       const data = await res.json();
       if (!res.ok) throw new Error(data.error);
@@ -282,17 +299,15 @@ export default function BlindboxLobbyPage() {
               创建第一个房间，邀请 TA 一起玩
             </p>
 
-            {/* Inline create form */}
+            {/* Inline create form — z-10 + isolation so inputs are above any overlay and receive touch */}
-            <div className="mt-7 w-full max-w-xs">
+            <div className="relative z-10 isolate mt-7 w-full max-w-xs">
               <div className="flex gap-2">
                 <Input
+                  ref={createNameRef}
                   type="text"
                   placeholder="我们的周末"
-                  value={createName}
+                  defaultValue=""
-                  onChange={(e) => {
+                  onInput={() => setError("")}
-                    setCreateName(e.target.value.slice(0, 30));
-                    setError("");
-                  }}
                   onKeyDown={(e) => { if (e.key === "Enter") handleCreate(); }}
                   maxLength={30}
                   size="xl"
@@ -319,11 +334,14 @@ export default function BlindboxLobbyPage() {
 
               <div className="mt-3 flex gap-2">
                 <Input
+                  ref={joinCodeRef}
                   type="text"
                   placeholder="6 位房间号"
-                  value={joinCode}
+                  defaultValue=""
-                  onChange={(e) => {
+                  onInput={(e) => {
-                    setJoinCode(e.target.value.toUpperCase().slice(0, 6));
+                    const v = (e.target as HTMLInputElement).value.toUpperCase().slice(0, 6);
+                    (e.target as HTMLInputElement).value = v;
+                    setJoinCodeLength(v.length);
                     setError("");
                   }}
                   onKeyDown={(e) => { if (e.key === "Enter") handleJoin(); }}
@@ -336,7 +354,7 @@ export default function BlindboxLobbyPage() {
                   onClick={handleJoin}
                   variant="secondary"
                   size="lg"
-                  disabled={joinCode.trim().length < 6}
+                  disabled={joinCodeLength < 6}
                   loading={joining}
                   icon={<LogIn size={16} />}
                 >
@@ -364,16 +382,14 @@ export default function BlindboxLobbyPage() {
             animate={{ opacity: 1, y: 0 }}
             exit={{ opacity: 0, y: -20 }}
           >
-            {/* Create row */}
+            <div className="relative z-10 isolate flex flex-col">
             <div className="flex gap-2">
               <Input
+                ref={createNameRef}
                 type="text"
                 placeholder="新房间名称"
-                value={createName}
+                defaultValue=""
-                onChange={(e) => {
+                onInput={() => setError("")}
-                  setCreateName(e.target.value.slice(0, 30));
-                  setError("");
-                }}
                 onKeyDown={(e) => { if (e.key === "Enter") handleCreate(); }}
                 maxLength={30}
                 size="lg"
@@ -393,11 +409,14 @@ export default function BlindboxLobbyPage() {
             {/* Join row */}
             <div className="mt-2 flex gap-2">
               <Input
+                ref={joinCodeRef}
                 type="text"
                 placeholder="输入 6 位房间号加入"
-                value={joinCode}
+                defaultValue=""
-                onChange={(e) => {
+                onInput={(e) => {
-                  setJoinCode(e.target.value.toUpperCase().slice(0, 6));
+                  const v = (e.target as HTMLInputElement).value.toUpperCase().slice(0, 6);
+                  (e.target as HTMLInputElement).value = v;
+                  setJoinCodeLength(v.length);
                   setError("");
                 }}
                 onKeyDown={(e) => { if (e.key === "Enter") handleJoin(); }}
@@ -409,7 +428,7 @@ export default function BlindboxLobbyPage() {
               <Button
                 onClick={handleJoin}
                 variant="secondary"
-                disabled={joinCode.trim().length < 6}
+                disabled={joinCodeLength < 6}
                 loading={joining}
                 icon={<LogIn size={14} />}
               >
@@ -426,6 +445,7 @@ export default function BlindboxLobbyPage() {
                 {error}
               </motion.p>
             )}
+            </div>
 
             {/* Room list */}
             <div className="mt-5 flex flex-col gap-3">

src/app/globals.css

@@ -69,6 +69,15 @@ body {
   -webkit-tap-highlight-color: transparent;
 }
 
+/* Allow inputs and textareas to receive focus and accept input (body has user-select: none) */
+input,
+textarea,
+[contenteditable="true"] {
+  -webkit-user-select: text !important;
+  user-select: text !important;
+  touch-action: manipulation; /* prevent scroll container from capturing touch on iOS */
+}
+
 .scrollbar-none {
   -ms-overflow-style: none;
   scrollbar-width: none;

src/components/Input.tsx

@@ -21,7 +21,8 @@ const Input = forwardRef<HTMLInputElement, InputProps>(
   ({ size = "md", variant = "default", className = "", ...rest }, ref) => (
     <input
       ref={ref}
-      className={`w-full border-none text-sm outline-none ring-1 ring-border placeholder:text-dim focus:ring-2 ${sizeStyles[size]} ${variantStyles[variant]} ${className}`}
+      className={`w-full min-w-0 border-none text-sm outline-none ring-1 ring-border placeholder:text-dim focus:ring-2 cursor-text touch-manipulation ${sizeStyles[size]} ${variantStyles[variant]} ${className}`}
+      autoComplete="off"
       {...rest}
     />
   ),