diff --git a/app/Models/WeddingCeremony.php b/app/Models/WeddingCeremony.php
index a3927a0..ed23aa0 100644
--- a/app/Models/WeddingCeremony.php
+++ b/app/Models/WeddingCeremony.php
@@ -1,10 +1,85 @@
 <?php
 
+/**
+ * 文件功能：婚礼仪式记录模型
+ *
+ * 对应 wedding_ceremonies 表，记录每一场婚礼的档位、支付方式、
+ * 举办时间及红包分发情况。关联婚姻记录和红包领取记录。
+ *
+ * @author  ChatRoom Laravel
+ *
+ * @version 1.0.0
+ */
+
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 
 class WeddingCeremony extends Model
 {
-    //
+    /**
+     * 允许批量赋值的字段列表。
+     *
+     * @var list<string>
+     */
+    protected $fillable = [
+        'marriage_id',
+        'tier_id',
+        'total_amount',
+        'payer_type',
+        'groom_amount',
+        'partner_amount',
+        'ceremony_type',
+        'ceremony_at',
+        'status',
+        'online_count',
+        'claimed_count',
+        'claimed_amount',
+        'expires_at',
+    ];
+
+    /**
+     * 字段类型转换。
+     *
+     * @return array<string, string>
+     */
+    protected function casts(): array
+    {
+        return [
+            'ceremony_at' => 'datetime',
+            'expires_at' => 'datetime',
+            'total_amount' => 'integer',
+            'groom_amount' => 'integer',
+            'partner_amount' => 'integer',
+            'online_count' => 'integer',
+            'claimed_count' => 'integer',
+            'claimed_amount' => 'integer',
+        ];
+    }
+
+    /**
+     * 关联婚姻记录。
+     */
+    public function marriage(): BelongsTo
+    {
+        return $this->belongsTo(Marriage::class);
+    }
+
+    /**
+     * 关联婚礼档位。
+     */
+    public function tier(): BelongsTo
+    {
+        return $this->belongsTo(WeddingTier::class, 'tier_id');
+    }
+
+    /**
+     * 关联红包领取记录。
+     */
+    public function claims(): HasMany
+    {
+        return $this->hasMany(WeddingEnvelopeClaim::class, 'ceremony_id');
+    }
 }