"I SURVIVED 100 DAYS" 是一张生存挑战视频的 YouTube 缩略图，采用高对比风格。带粗黑描边的巨大黄色字母占满左上方，下面是一行短副标题，背景是暴风雨森林中的篝火和木棚。可以换成你自己的挑战标题和场景再做一张。

Create a finished 16:9 YouTube thumbnail for a 100-day survival challenge. Use a high-contrast, cinematic survival scene: a battered timber lean-to, a small smoking campfire, wet rocks and dense wilderness under a storm-dark sky, concentrated in the left and lower-center of the frame. No person or face. Reserve the entire rightmost 30% as relatively uncluttered dark teal sky and softly blurred foliage, with no text or focal objects, leaving clear space for the creator to add their face later. On the left, set the exact headline “I SURVIVED 100 DAYS” in two stacked lines: “I SURVIVED” above “100 DAYS”. Make the lettering enormous, heavy, condensed, uppercase, bright saturated yellow, with a thick clean black outline and a small hard-edged black drop shadow. Keep every letter fully inside the frame and legible at small thumbnail size. Add the smaller exact supporting line “NO FOOD. NO SHELTER.” beneath the headline in compact bold white uppercase lettering with a dark outline. Render no other words, labels, logos, or watermarks. Use a custom, tightly controlled thumbnail composition: text owns the left two-thirds; the battered shelter and fire sit low beneath the title; the right third stays open for a face overlay. Use crisp silhouettes, warm orange firelight against cool stormy teal shadows, strong local contrast, sharp foreground details, and a subtle darkened edge behind the type for readability. Photorealistic 3D scene rendering, dramatic directional lighting, bright fire rim light, ray-traced wet-surface reflections, restrained smoke, clean separation between text and scene.