“DO NOT WATCH Nightmare Fuel”是使用 FontVibe AI 创作的血滴字体文字效果。粗体深红字母，表面湿润暗红，长长的血滴末端凝成圆珠，在侧光下孤立于纯黑背景。

Create a finished 16:9 YouTube horror-channel thumbnail, composed for instant readability at small feed size. Use a pure black background with no warm tones or colorful decoration. On the left, set the exact headline “DO NOT WATCH” in two stacked lines, “DO NOT” above “WATCH,” very large and bold. Build the letters as crude, hand-applied deep-crimson blood strokes: irregular pressure-varied width, uneven opacity, dark dried crust at the edges, and brief downward runs. Add thick viscous drips hanging from the letter bases, each narrowing into a rounded tear-shaped terminal with visible surface tension. Catch convex wet surfaces with a dim cold-red side light; let thick accumulations fall toward near-black clotted pools. On the right, show a large blood-saturated hand reaching toward the viewer from a narrow, pitch-black doorway, partly lost in shadow. Give it convincing anatomical form, slick crimson coating, heavy gravity-pulled drips, and a sharp red rim light; keep it secondary to the headline. Place the exact channel name “Nightmare Fuel” in small but clearly legible hand-painted crimson lettering at the upper left. Keep generous separation between the text and hand. Restrict the image to pure black, deep crimson, arterial red highlights, and near-black clotted red. Photorealistic practical horror effects, high contrast, dramatic side lighting, realistic subsurface scattering through thick blood, ray-traced wet highlights, deep shadow detail. No other text, no logos, no borders.