diff --git a/README.md b/README.md
index a7d0daf..7ac09da 100755
--- a/README.md
+++ b/README.md
@@ -13,6 +13,7 @@
 - 音效与特效：出牌、不出、炸弹、王炸、同花顺等有局内反馈，可静音。
 - 积分系统：可选 MySQL 持久化，斗地主和掼蛋积分榜独立统计。
 - Discuz SSO：可选 JWT 单点登录，支持同步 Discuz 用户名和头像。
+- 登录分支：默认首页保留 Discuz 登录/访客入口；普通玩家可访问 `/?auth=guest` 直接输入用户名进入。
 - 移动端：大厅可响应式使用；牌桌在手机端要求横屏。
 
 ## 快速开始
diff --git a/config.example.json b/config.example.json
index 003436d..9f96cab 100644
--- a/config.example.json
+++ b/config.example.json
@@ -10,5 +10,6 @@
   "DB_TABLE_PREFIX": "pre_",
   "DB_DISABLE": 0,
   "SCORE_BASE": 1,
-  "DISCUZ_AVATAR_BASE": "https://zwwx.club/uc_server/avatar.php?uid={uid}&size=middle"
+  "DISCUZ_AVATAR_BASE": "https://zwwx.club/uc_server/avatar.php?uid={uid}&size=middle",
+  "_LOGIN_MODES": "默认首页保留 Discuz 登录/游客。面向普通玩家可使用 /?auth=guest 直接显示游客用户名输入。"
 }
diff --git a/server.js b/server.js
index 936fd72..3c67bd5 100755
--- a/server.js
+++ b/server.js
@@ -276,6 +276,33 @@ function getGuandanCandidates(game, posId, leadOnly) {
     });
 }
 
+
+function evaluateDoudizhuHand(cards) {
+  const groups = groupCardsByValue(cards || []);
+  const values = Object.keys(groups).map(Number);
+  let power = 0;
+  values.forEach(v => {
+    const n = groups[v].length;
+    if (v >= 16) power += 4;
+    else if (v === 15) power += 3 * n;
+    else if (v >= 13) power += 1.5 * n;
+    if (n >= 4) power += 7;
+    else if (n === 3) power += 2;
+  });
+  if (groups[16] && groups[17]) power += 8;
+  return power;
+}
+
+function shouldCallDoudizhuScore(cards, ctxScore) {
+  if (!ctxScore || !ctxScore.length) return 0;
+  const maxScore = Math.max.apply(null, ctxScore);
+  const power = evaluateDoudizhuHand(cards);
+  if (power >= 22 && ctxScore.indexOf(3) >= 0) return 3;
+  if (power >= 16 && ctxScore.indexOf(2) >= 0) return 2;
+  if (power >= 11 && ctxScore.indexOf(1) >= 0) return 1;
+  return (power >= 20 && maxScore) ? maxScore : 0;
+}
+
 function time() {
   return (new Date()).toLocaleTimeString();
 }
@@ -718,9 +745,10 @@ const proto = {
     const game = this.gameDatas[deskId];
     if (!game) return;
     const ctxScore = game.getContextScore() || [];
-    let score = 0;
-    if (Math.random() < 0.65 && ctxScore.length) {
-      score = ctxScore[Math.floor(Math.random() * ctxScore.length)];
+    const hand = game.getCardsByPosId(posId) || [];
+    let score = shouldCallDoudizhuScore(hand, ctxScore);
+    if (!score && Math.random() < 0.12 && ctxScore.length) {
+      score = ctxScore[0];
     }
     const status = game.next(posId, score).getStatus();
     if (status == 1) {
@@ -757,7 +785,12 @@ const proto = {
       len: last.len, key: last.key, type: last.type, ctxPos: 'other'
     };
     let picks = [];
-    try { picks = (AISuggest.suggest(hand, lastInfo)) || []; } catch (e) { picks = []; }
+    const allOut = game.validate(posId, handRaw);
+    if (allOut && allOut.status) {
+      picks = handRaw.map(c => ({ value: c.value, type: c.type }));
+    } else {
+      try { picks = (AISuggest.suggest(hand, lastInfo)) || []; } catch (e) { picks = []; }
+    }
     // 解析为真实牌实例（按下标占用避免重复）
     const used = new Set();
     let data = [];
diff --git a/static/css/style.css b/static/css/style.css
index e52a061..7ac673a 100644
--- a/static/css/style.css
+++ b/static/css/style.css
@@ -1781,6 +1781,10 @@ button.btn-ghost {
   font-size: 13px;
   color: var(--jade-100);
 }
+.guandan-teams {
+  display: flex;
+  flex-direction: column;
+}
 .guandan-team-row span {
   display: block;
   max-width: 150px;
@@ -1842,10 +1846,15 @@ button.btn-ghost {
 }
 .room-guandan .player-top {
   position: fixed;
-  left: calc(50vw - 400px);
-  top: calc(var(--table-top-safe) + var(--card-h) + 38px);
-  transform: scale(0.76);
-  transform-origin: top left;
+  left: 50%;
+  top: calc(var(--table-top-safe) + var(--card-h) + 30px);
+  transform: translateX(-50%) scale(0.92);
+  transform-origin: top center;
+  z-index: 28;
+}
+.room-guandan .player-top .team-tag {
+  top: -8px;
+  right: -14px;
 }
 .room-guandan .player-right {
   right: calc(var(--table-right-safe) - 124px);
@@ -1990,11 +1999,11 @@ button.btn-ghost {
   .player-right     { right: calc(var(--table-right-safe) - 118px); top: calc(50vh - 58px); }
   .player-top       { top: calc(var(--table-top-safe) + var(--card-h) + 22px); }
   .room-guandan .player-top {
-    display: none;
-    left: max(190px, calc(50vw - 315px));
-    top: calc(var(--table-top-safe) + var(--card-h) + 26px);
-    transform: scale(0.68);
-    transform-origin: top left;
+    display: block;
+    left: 50%;
+    top: calc(var(--table-top-safe) + var(--card-h) + 22px);
+    transform: translateX(-50%) scale(0.78);
+    transform-origin: top center;
   }
   .icon-group-left {
     top: 20px;
diff --git a/static/index.html b/static/index.html
index 7b8debd..f16513b 100755
--- a/static/index.html
+++ b/static/index.html
@@ -3,7 +3,7 @@
 
 <head>
   <meta charset="UTF-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0">
   <meta http-equiv="X-UA-Compatible" content="ie=edge">
   <meta name="theme-color" content="#0e2422">
   <title>雀阁 · 纸牌房</title>
@@ -22,13 +22,13 @@
         <div class="row title">
           雀阁
         </div>
-        <template v-if="isAutoLogin">
+        <template v-if="authMode === 'discuz' && isAutoLogin">
           <div class="auto-login">正在使用 ZWWX.CLUB 登录，请稍候…</div>
           <div class="row" style="margin-top:14px;text-align:center;">
             <a href="javascript:;" @click="cancelAutoLogin()" style="color:#888;font-size:12px;">迟迟无法进入？点此取消并改用其他方式</a>
           </div>
         </template>
-        <template v-else-if="!guestMode">
+        <template v-else-if="authMode === 'discuz' && !guestMode">
           <div v-if="loginError" class="login-error" style="margin:8px 0 12px;padding:10px 12px;background:#3b1f1f;border:1px solid #8a3a3a;color:#ffb3b3;border-radius:6px;font-size:13px;line-height:1.5;text-align:left;">
             <div style="font-weight:bold;margin-bottom:4px;">登录失败</div>
             <div>{{loginError}}</div>
@@ -45,7 +45,7 @@
               @click="login">入  座</button>
           </div>
           <div class="row" style="margin-top:8px;text-align:center;">
-            <a href="javascript:;" @click="guestMode = false" style="color:#888;font-size:12px;">返回登录方式选择</a>
+            <a v-if="authMode === 'discuz'" href="javascript:;" @click="guestMode = false" style="color:#888;font-size:12px;">返回登录方式选择</a>
           </div>
         </template>
       </div>
@@ -492,7 +492,8 @@ <h1>{{gameTypeName(selectedGameType)}}大厅</h1>
 
           where: 0,//0登录界面 1大厅 2房间,
           isAutoLogin: false,
-          guestMode: false,// 选择以访客身份进入
+          authMode: getURLParam('auth') === 'guest' ? 'guest' : 'discuz',// 登录分支：discuz=论坛/访客，guest=普通游客
+          guestMode: getURLParam('auth') === 'guest',// 选择以访客身份进入
           loginError: '',//登录错误持久横幅
           debugMode: /[?&]debug=1\b/.test(location.search),//?debug=1 显示调试信息
           tokenSnippet: '',//最近一次握手用的 token 前后段（仅在 debug 显示）
@@ -602,7 +603,7 @@ <h1>{{gameTypeName(selectedGameType)}}大厅</h1>
           });
 
           // if Discuz token exists, mark as auto-login and the server will validate it
-          var _token = _getDiscuzToken();
+          var _token = this.authMode === 'discuz' ? _getDiscuzToken() : '';
           if (_token) {
             this.isAutoLogin = true;
             // debug 模式记录 token 片段