diff --git a/api/land_api.php b/api/land_api.php
index 5f3abb4..1e849a9 100644
--- a/api/land_api.php
+++ b/api/land_api.php
@@ -72,6 +72,62 @@ $PERM_TYPES = [
     'peaceMode' => '和平模式',
 ];
 
+// ★ 领地默认权限列映射：perm键 → web_area_lands 列名
+//   reverse=true 表示该列存储的是 allow 标志（1=允许），需取反得到 deny 默认值
+//   与 Java AreaProtection.getLandDefaultDeny 完全对齐
+//   （注意：denyDrop/denyPickup 在 area_lands 表中以 deny_drop/deny_pickup 列存储 allow 标志，实际存的是反义）
+$PERM_DEFAULT_COLS = [
+    'denyMove' => ['col' => 'deny_move'],
+    'denyBlockPlace' => ['col' => 'deny_block_place'],
+    'denyBlockBreak' => ['col' => 'deny_block_break'],
+    'denyContainer' => ['col' => 'deny_container'],
+    'denyPVP' => ['col' => 'deny_pvp'],
+    'denyFallDamage' => ['col' => 'deny_fall_damage'],
+    'denyHunger' => ['col' => 'deny_hunger'],
+    'denyAllDamage' => ['col' => 'deny_all_damage'],
+    'denyDrop' => ['col' => 'deny_drop', 'reverse' => true],
+    'denyMount' => ['col' => 'deny_mount'],
+    'denyEnderPearl' => ['col' => 'deny_ender_pearl'],
+    'denyBow' => ['col' => 'deny_bow'],
+    'denyPotion' => ['col' => 'deny_potion'],
+    'denyExplosion' => ['col' => 'deny_explosion'],
+    'denyRaid' => ['col' => 'deny_raid'],
+    'denyFireSpread' => ['col' => 'deny_fire_spread'],
+    'denyAllEffects' => ['col' => 'deny_all_effects'],
+    'denyItemFrame' => ['col' => 'deny_item_frame'],
+    'denyEntityInteract' => ['col' => 'deny_entity_interact'],
+    'denyPickup' => ['col' => 'deny_pickup', 'reverse' => true],
+    'denyFire' => ['col' => 'deny_fire'],
+    'denyThrownProjectiles' => ['col' => 'deny_thrown_projectiles'],
+    'denyGlowing' => ['col' => 'deny_glowing'],
+    'denyRedstoneInteraction' => ['col' => 'deny_redstone_interaction'],
+    'denyDoorInteraction' => ['col' => 'deny_door_interaction'],
+    'denyNoteblockJukebox' => ['col' => 'deny_noteblock_jukebox'],
+    'denyLead' => ['col' => 'deny_lead'],
+    'denyCropHarvest' => ['col' => 'deny_crop_harvest'],
+    'denyWoolShear' => ['col' => 'deny_wool_shear'],
+    'denyAnimalFeeding' => ['col' => 'deny_animal_feeding'],
+    'denyMobAttack' => ['col' => 'deny_mob_attack'],
+    'peaceMode' => ['col' => 'peace_mode'],
+];
+
+// ★ 计算领地默认权限映射（与游戏内 getEffectiveDeny 的"领地默认"回退一致）
+//   普通 deny* 列：1=禁止；denyDrop/denyPickup 列存 allow 标志，需取反
+function getLandDefaultPerms($land) {
+    global $PERM_DEFAULT_COLS;
+    $defaults = [];
+    foreach ($PERM_DEFAULT_COLS as $key => $info) {
+        $raw = isset($land[$info['col']]) ? (int)$land[$info['col']] : 0;
+        if (!empty($info['reverse'])) {
+            // 列存 allow 标志（1=允许）→ 取反得 deny 默认
+            $defaults[$key] = ($raw !== 1);
+        } else {
+            $defaults[$key] = ($raw === 1);
+        }
+    }
+    return $defaults;
+}
+
 try {
     // ★ 加载core.php（与sync.php相同的加载方式）
     $coreFile = dirname(__DIR__) . '/core.php';
@@ -1900,6 +1956,7 @@ function handleGetMemberPerms($db, $playerName, $landName) {
     echo json_encode([
         'success' => true,
         'land' => $land,
+        'default_perms' => getLandDefaultPerms($land),
         'members' => $members,
         'perm_types' => $PERM_TYPES
     ]);
diff --git a/player.php b/player.php
index 7920a6f..a9ffb2d 100644
--- a/player.php
+++ b/player.php
@@ -3475,6 +3475,7 @@ async function renderMemberPermDetail(el, landName, targetPlayer) {
         }
 
         const permMap = member.perm_map || {};
+        const defaultPerms = data.default_perms || {};
         const permEntries = Object.entries(permTypes);
 
         let html = `<div class="card">
@@ -3487,14 +3488,17 @@ async function renderMemberPermDetail(el, landName, targetPlayer) {
             <div style="display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px">`;
 
         for (const [key, label] of permEntries) {
-            const denied = permMap[key] === true; // true = deny类权限激活=禁止
+            // ★ 与游戏内 getEffectiveDeny 一致：有自定义覆盖用自定义，否则回退领地默认
+            const hasCustom = Object.prototype.hasOwnProperty.call(permMap, key);
+            const denied = hasCustom ? (permMap[key] === true) : (defaultPerms[key] === true);
+            const isDefault = !hasCustom; // 继承领地默认
 
             html += `<div onclick="toggleMemberPerm('${escHtml(landName)}','${escHtml(targetPlayer)}','${key}',this)"
                 style="background:${denied ? 'rgba(239,68,68,0.1)' : 'rgba(34,197,94,0.1)'};
                 border:1px solid ${denied ? 'var(--red)' : 'var(--green)'};
-                border-radius:8px;padding:12px;cursor:pointer;transition:all 0.2s">
+                border-radius:8px;padding:12px;cursor:pointer;transition:all 0.2s;${isDefault ? 'opacity:.82' : ''}">
                 <div style="display:flex;justify-content:space-between;align-items:center;margin-bottom:4px">
-                    <span style="color:var(--fg);font-size:13px;font-weight:500">${label}</span>
+                    <span style="color:var(--fg);font-size:13px;font-weight:500">${label}${isDefault ? ' <span style="font-size:9px;color:var(--dim)">默认</span>' : ''}</span>
                     <span style="font-size:11px;color:${denied ? 'var(--red)' : 'var(--green)'}">
                         ${denied ? '✗ 禁止' : '✓ 允许'}
                     </span>