[ECO Bounty] DePINscan Promotional Banner Image Displaying Too Small on Mobile

Description: The promotional banner/carousel element on the mobile homepage is rendering at an unusually small scale, making the text and imagery difficult to read. The banner appears to be a "Crypto's Talent" promotional card with sponsor logos and profile avatars, but it is constrained to a very narrow height/width compared to the screen width.

Steps to Reproduce:

1. Open a mobile browser on an Android or iOS device.

2. Navigate to https://depinscan.io/.

3. Scroll to the section immediately below the "Sign up for latest DePIN news" email subscription form.

4. Observe the carousel/banner area indicated by pagination dots (● ● ● ●).

Expected Result: The banner image should span the full width of the mobile viewport (or maintain a reasonable max-width with readable text) and have sufficient height to display the promotional content clearly.

Actual Result: The banner is displayed at approximately 30-40% of the available screen width, compressing all text and making the "Crypto's Talent" copy and participant avatars illegible without zooming in.

Suggested Fix: Check the CSS for the carousel/slider component (likely a swiper or similar library). The image container may have a max-width set too low, missing width: 100%, or the image itself may not have the object-fit: cover or responsive scaling properties configured for mobile breakpoints.

Wallet Address: io1tkw393kejmxwnd454twc6020sxcyvh5dxqmren

Device & Environment:

-Operating system: Android 13

-Device model: Redmi Note 10 Pro