diff --git a/resources/js/chat-room/baccarat-loss-cover-admin.js b/resources/js/chat-room/baccarat-loss-cover-admin.js
index ae74d75..f654a49 100644
--- a/resources/js/chat-room/baccarat-loss-cover-admin.js
+++ b/resources/js/chat-room/baccarat-loss-cover-admin.js
@@ -108,6 +108,7 @@ export async function loadAdminCurrentLossCoverEvent() {
             return;
         }
 
+        // 待开始、进行中和待结算活动允许管理员手动结束，已结束/已关闭状态不再展示按钮。
         const canClose = ["scheduled", "active", "settlement_pending"].includes(event.status);
         const closeButton = canClose
             ? `<button type="button" data-blc-close-current="${Number(event.id)}" style="margin-top:10px; padding:7px 14px; border:none; border-radius:999px; background:#dc2626; color:#fff; font-size:12px; font-weight:bold; cursor:pointer;">立即结束</button>`
@@ -145,6 +146,7 @@ export async function openAdminBaccaratLossCoverModal() {
     }
 
     const now = new Date();
+    // 默认活动 30 分钟，领奖截止延后 24 小时，便于管理员打开后直接微调。
     const end = new Date(now.getTime() + 30 * 60 * 1000);
     const claimDeadline = new Date(end.getTime() + 24 * 60 * 60 * 1000);
 
diff --git a/resources/js/chat-room/bank-modal.js b/resources/js/chat-room/bank-modal.js
index 9b5cc3d..47e7753 100644
--- a/resources/js/chat-room/bank-modal.js
+++ b/resources/js/chat-room/bank-modal.js
@@ -2,6 +2,7 @@
 
 import { escapeHtml } from "./html.js";
 
+// 排行榜页码、排序与绑定标记需要跨打开/关闭弹窗保持一致。
 let bankRankPage = 1;
 let bankRankSort = "desc";
 let bankModalEventsBound = false;
@@ -149,6 +150,7 @@ export async function bankLoadInfo() {
         }
 
         if (window.chatContext) {
+            // 同步全局金币缓存，供聊天室其他金币展示或后续购买逻辑读取最新余额。
             window.chatContext.myGold = data.jjb;
             window.chatContext.bankGold = data.bank_jjb;
         }
diff --git a/resources/js/chat-room/preferences-status.js b/resources/js/chat-room/preferences-status.js
index 1b45e16..70b0e5d 100644
--- a/resources/js/chat-room/preferences-status.js
+++ b/resources/js/chat-room/preferences-status.js
@@ -3,6 +3,7 @@
 export const BLOCKABLE_SYSTEM_SENDERS = ["钓鱼播报", "星海小博士", "百家乐", "跑马", "神秘箱子"];
 export const BLOCKED_SYSTEM_SENDERS_STORAGE_KEY = "chat_blocked_system_senders";
 export const CHAT_SOUND_MUTED_STORAGE_KEY = "chat_sound_muted";
+// 白名单、localStorage key 与绑定标记共同保证偏好读取可控、事件只注册一次。
 let soundMuteEventsBound = false;
 let blockMenuEventsBound = false;
 
diff --git a/resources/js/chat-room/rooms.js b/resources/js/chat-room/rooms.js
index df0c6ab..e25d939 100644
--- a/resources/js/chat-room/rooms.js
+++ b/resources/js/chat-room/rooms.js
@@ -2,6 +2,7 @@
 
 import { escapeHtml } from "./html.js";
 
+// 默认空态供右侧面板和手机抽屉共用，调用方仍可通过 options.emptyHtml 覆盖。
 const EMPTY_ROOMS_HTML =
     '<div style="text-align:center;color:#bbb;padding:16px 0;font-size:11px;">暂无房间</div>';
 
@@ -76,6 +77,7 @@ export function renderRoomStatusRow(room, options = {}) {
         ? `<span style="background:#e8f5e9;color:#2e7d32;border-radius:8px;padding:0 ${variant === "mobile" ? "6px" : "5px"};font-size:10px;font-weight:bold;white-space:nowrap;flex-shrink:0;">${room.online}${variant === "mobile" ? "" : " "}人</span>`
         : `<span style="background:#f5f5f5;color:#bbb;border-radius:8px;padding:0 ${variant === "mobile" ? "6px" : "5px"};font-size:10px;white-space:nowrap;flex-shrink:0;">空</span>`;
 
+    // 手机和桌面只区分容器尺寸与视觉密度，房间数据口径保持同一套。
     if (variant === "mobile") {
         return `<div ${clickHandler}
                     style="display:flex;align-items:center;justify-content:space-between;