diff --git a/waifu-tips.js b/waifu-tips.js
index dab9215..290e449 100755
--- a/waifu-tips.js
+++ b/waifu-tips.js
@@ -64,8 +64,8 @@ function loadWidget(config) {
 				if (!window.ASTEROIDSPLAYERS) window.ASTEROIDSPLAYERS = [];
 				window.ASTEROIDSPLAYERS.push(new Asteroids());
 			} else {
-				let script = document.createElement("script");
-				script.src = "https://cdn.jsdelivr.net/gh/GalaxyMimi/CDN/asteroids.js";
+				const script = document.createElement("script");
+				script.src = "https://cdn.jsdelivr.net/gh/stevenjoezhang/asteroids/asteroids.js";
 				document.head.appendChild(script);
 			}
 		});
@@ -88,7 +88,7 @@ function loadWidget(config) {
 				document.getElementById("waifu-toggle").classList.add("waifu-toggle-active");
 			}, 3000);
 		});
-		let devtools = () => {};
+		const devtools = () => {};
 		console.log("%c", devtools);
 		devtools.toString = () => {
 			showMessage("哈哈，你打开了控制台，是想要看看我的小秘密吗？", 6000, 9);
@@ -104,7 +104,7 @@ function loadWidget(config) {
 	(function welcomeMessage() {
 		let text;
 		if (location.pathname === "/") { // 如果是主页
-			let now = new Date().getHours();
+			const now = new Date().getHours();
 			if (now > 5 && now <= 7) text = "早上好！一日之计在于晨，美好的一天就要开始了。";
 			else if (now > 7 && now <= 11) text = "上午好！工作顺利嘛，不要久坐，多起来走动走动哦！";
 			else if (now > 11 && now <= 13) text = "中午了，工作了一个上午，现在是午餐时间！";
@@ -114,7 +114,7 @@ function loadWidget(config) {
 			else if (now > 21 && now <= 23) text = ["已经这么晚了呀，早点休息吧，晚安～", "深夜时要爱护眼睛呀！"];
 			else text = "你是夜猫子呀？这么晚还不睡觉，明天起的来嘛？";
 		} else if (document.referrer !== "") {
-			let referrer = new URL(document.referrer),
+			const referrer = new URL(document.referrer),
 				domain = referrer.hostname.split(".")[1];
 			if (location.hostname === referrer.hostname) text = `欢迎阅读<span>「${document.title.split(" - ")[0]}」</span>`;
 			else if (domain === "baidu") text = `Hello！来自 百度搜索 的朋友<br>你是搜索 <span>${referrer.search.split("&wd=")[1].split("&")[0]}</span> 找到的我吗？`;
@@ -132,7 +132,7 @@ function loadWidget(config) {
 		fetch("https://v1.hitokoto.cn")
 			.then(response => response.json())
 			.then(result => {
-				let text = `这句一言来自 <span>「${result.from}」</span>，是 <span>${result.creator}</span> 在 hitokoto.cn 投稿的。`;
+				const text = `这句一言来自 <span>「${result.from}」</span>，是 <span>${result.creator}</span> 在 hitokoto.cn 投稿的。`;
 				showMessage(result.hitokoto, 6000, 9);
 				setTimeout(() => {
 					showMessage(text, 4000, 9);
@@ -148,7 +148,7 @@ function loadWidget(config) {
 		}
 		text = randomSelection(text);
 		sessionStorage.setItem("waifu-text", priority);
-		let tips = document.getElementById("waifu-tips");
+		const tips = document.getElementById("waifu-tips");
 		tips.innerHTML = text;
 		tips.classList.add("waifu-tips-active");
 		messageTimer = setTimeout(() => {
@@ -188,7 +188,7 @@ function loadWidget(config) {
 					}
 				});
 				result.seasons.forEach(tips => {
-					let now = new Date(),
+					const now = new Date(),
 						after = tips.date.split("-")[0],
 						before = tips.date.split("-")[1] || after;
 					if ((after.split("/")[0] <= now.getMonth() + 1 && now.getMonth() + 1 <= before.split("/")[0]) && (after.split("/")[1] <= now.getDate() && now.getDate() <= before.split("/")[1])) {
@@ -202,9 +202,8 @@ function loadWidget(config) {
 	})();
 
 	async function loadModelList() {
-		let response = await fetch(`${cdnPath}model_list.json`);
-		let result = await response.json();
-		modelList = result;
+		const response = await fetch(`${cdnPath}model_list.json`);
+		modelList = await response.json();
 	}
 
 	async function loadModel(modelId, modelTexturesId, message) {
@@ -213,7 +212,7 @@ function loadWidget(config) {
 		showMessage(message, 4000, 10);
 		if (useCDN) {
 			if (!modelList) await loadModelList();
-			let target = randomSelection(modelList.models[modelId]);
+			const target = randomSelection(modelList.models[modelId]);
 			loadlive2d("live2d", `${cdnPath}model/${target}/index.json`);
 		} else {
 			loadlive2d("live2d", `${apiPath}get/?id=${modelId}-${modelTexturesId}`);
@@ -222,11 +221,11 @@ function loadWidget(config) {
 	}
 
 	async function loadRandModel() {
-		let modelId = localStorage.getItem("modelId"),
+		const modelId = localStorage.getItem("modelId"),
 			modelTexturesId = localStorage.getItem("modelTexturesId");
 		if (useCDN) {
 			if (!modelList) await loadModelList();
-			let target = randomSelection(modelList.models[modelId]);
+			const target = randomSelection(modelList.models[modelId]);
 			loadlive2d("live2d", `${cdnPath}model/${target}/index.json`);
 			showMessage("我的新衣服好看嘛？", 4000, 10);
 		} else {
@@ -244,7 +243,7 @@ function loadWidget(config) {
 		let modelId = localStorage.getItem("modelId");
 		if (useCDN) {
 			if (!modelList) await loadModelList();
-			let index = (++modelId >= modelList.models.length) ? 0 : modelId;
+			const index = (++modelId >= modelList.models.length) ? 0 : modelId;
 			loadModel(index, 0, modelList.messages[index]);
 		} else {
 			fetch(`${apiPath}switch/?id=${modelId}`)
@@ -266,7 +265,7 @@ function initWidget(config, apiPath) {
 	document.body.insertAdjacentHTML("beforeend", `<div id="waifu-toggle">
 			<span>看板娘</span>
 		</div>`);
-	let toggle = document.getElementById("waifu-toggle");
+	const toggle = document.getElementById("waifu-toggle");
 	toggle.addEventListener("click", () => {
 		toggle.classList.remove("waifu-toggle-active");
 		if (toggle.getAttribute("first-time")) {