Masked Video Hero

Create a hero section where a video or animated gradient is clipped inside oversized text. Use a single word or short phrase in a massive bold font that fills most of the viewport. The background inside the letters should show motion (use a placeholder looping gradient animation if no video asset is available). Use CSS background-clip: text with a transparent text fill, or clip-path/mask techniques. Place a small subtitle and CTA below the masked word. Use Tailwind CSS. Keep the surrounding background dark.

创建一个 hero 区域，视频或动画渐变被裁剪进超大字体中。使用一个占据大部分视口的巨大粗体单词或短句。字母内部背景应显示动态（如无视频资源，使用循环渐变动画占位）。使用 CSS background-clip: text 配合透明文字填充，或 clip-path/mask 技术。在遮罩文字下方放置小副标题和 CTA。使用 Tailwind CSS。周围背景保持深色。