swap home banners, 3s autoplay, animated rec scroll thumb

src/components/FigmaBanner.tsx

@@ -23,22 +23,36 @@ type BannerSlide = {
   alt: string;
 };
 
+const BANNERS_BASE = "/assets/ark-library/banners";
+
 const BANNER_SLIDES: BannerSlide[] = [
   {
     id: "ark-banner-1",
-    mobile: `${FIGMA_ASSET_BASE}/banner-mobile-1.png`,
-    desktop: `${FIGMA_ASSET_BASE}/banner-desktop.png`,
+    mobile: `${BANNERS_BASE}/banner-1.png`,
+    desktop: `${BANNERS_BASE}/banner-1.png`,
     alt: "",
   },
   {
     id: "ark-banner-2",
-    mobile: `${FIGMA_ASSET_BASE}/banner-375.png`,
-    desktop: `${FIGMA_ASSET_BASE}/banner-wide.png`,
+    mobile: `${BANNERS_BASE}/banner-2.png`,
+    desktop: `${BANNERS_BASE}/banner-2.png`,
+    alt: "",
+  },
+  {
+    id: "ark-banner-3",
+    mobile: `${BANNERS_BASE}/banner-3.png`,
+    desktop: `${BANNERS_BASE}/banner-3.png`,
+    alt: "",
+  },
+  {
+    id: "ark-banner-4",
+    mobile: `${BANNERS_BASE}/banner-4.png`,
+    desktop: `${BANNERS_BASE}/banner-4.png`,
     alt: "",
   },
 ];
 
-const AUTOPLAY_MS = 5000;
+const AUTOPLAY_MS = 3000;
 const RESUME_AFTER_INTERACTION_MS = 8000;
 
 export function FigmaBanner() {

src/pages/Home/index.tsx

@@ -27,6 +27,7 @@ export function Home() {
   const [err, setErr] = useState<string | null>(null);
   const recRowRef = useRef<HTMLDivElement>(null);
   const [canScrollRec, setCanScrollRec] = useState(false);
+  const [recScroll, setRecScroll] = useState({ ratio: 1, progress: 0 });
 
   useEffect(() => {
     const langParam = encodeURIComponent(langQuery(lang));
@@ -64,14 +65,26 @@ export function Home() {
       return;
     }
 
-    const updateCanScroll = () => {
-      setCanScrollRec(row.scrollWidth > row.clientWidth + 1);
+    const update = () => {
+      const overflow = row.scrollWidth > row.clientWidth + 1;
+      setCanScrollRec(overflow);
+      const ratio = overflow ? row.clientWidth / row.scrollWidth : 1;
+      const maxScroll = Math.max(1, row.scrollWidth - row.clientWidth);
+      const progress = overflow ? row.scrollLeft / maxScroll : 0;
+      setRecScroll({
+        ratio: Math.min(1, Math.max(0.15, ratio)),
+        progress: Math.min(1, Math.max(0, progress)),
+      });
     };
 
-    updateCanScroll();
-    const resizeObserver = new ResizeObserver(updateCanScroll);
+    update();
+    const resizeObserver = new ResizeObserver(update);
     resizeObserver.observe(row);
-    return () => resizeObserver.disconnect();
+    row.addEventListener("scroll", update, { passive: true });
+    return () => {
+      resizeObserver.disconnect();
+      row.removeEventListener("scroll", update);
+    };
   }, [rec.length]);
 
   const scrollRec = (dir: 1 | -1) => {
@@ -147,8 +160,14 @@ export function Home() {
               </div>
             ))}
           </div>
-          <div className="h-1 rounded-full bg-black/80 md:hidden">
-            <div className="h-full w-24 rounded-full bg-[#353740]" />
+          <div className="h-1 overflow-hidden rounded-full bg-black/80 md:hidden">
+            <div
+              className="h-full rounded-full bg-ark-gold transition-transform duration-300 ease-out"
+              style={{
+                width: `${Math.round(recScroll.ratio * 100)}%`,
+                transform: `translateX(${recScroll.progress * (100 / recScroll.ratio - 100)}%)`,
+              }}
+            />
           </div>
           {canScrollRec ? (
             <button