docs: PCL Intelligence 主页说明书

1. 删除了 Background 背景图
2. 使用内置 Banner 功能
3. 优化文档内容描述
4. 修改一言的地址，并加上内置的一条一言，用于 429

src/layouts/Layout.astro

@@ -555,27 +555,6 @@ window.onresize = () => {
 	offset = offset - offset % 4;
 	document.documentElement.style.setProperty('--banner-height-extend', `${offset}px`);
 }
-// Background image loading detection https://github.com/afoim/fuwari/commit/aad0a7734be5f6e96a54a3aed51e49760ab3162a
-const bgUrl = getComputedStyle(document.documentElement).getPropertyValue('--bg-url').trim();
-const bgEnable = getComputedStyle(document.documentElement).getPropertyValue('--bg-enable').trim();
-
-if (bgUrl && bgUrl !== 'none' && bgEnable === '1') {
-	const img = new Image();
-	const urlMatch = bgUrl.match(/url\(["']?([^"')]+)["']?\)/);
-	if (urlMatch) {
-		img.onload = function() {
-			// 背景图片完全加载后，显示背景并启用卡片透明效果
-			document.body.classList.add('bg-loaded');
-			document.documentElement.style.setProperty('--card-bg', 'var(--card-bg-transparent)');
-			document.documentElement.style.setProperty('--float-panel-bg', 'var(--float-panel-bg-transparent)');
-		};
-		img.onerror = function() {
-			// Keep cards opaque if background image fails to load
-			console.warn('Background image failed to load, keeping cards opaque');
-		};
-		img.src = urlMatch[1];
-	}
-}
 </script>
 
 <script>
@@ -617,20 +596,12 @@ function createPhotoSwipe() {
 }
 
 const setup = () => {
-	if (!lightbox) {
-		createPhotoSwipe()
-	}
 	window.swup.hooks.on("page:view", () => {
+		if (lightbox) {
+			lightbox.destroy()
+		}
 		createPhotoSwipe()
 	})
-
-	window.swup.hooks.on(
-		"content:replace",
-		() => {
-			lightbox?.destroy?.()
-		},
-		{ before: true },
-	)
 }
 
 if (window.swup) {