013브이로그 · 스터디 영상 썸네일 — 롱폼 가로 · 숏폼 세로, 작게 봐도 읽히는 큰 카피

Generate this image now. Draw it directly - do not describe it, explain it, or ask questions.
Output size 2480x3508 pixels, A4 portrait, 300dpi, print-ready poster.

[Purpose]
Create one finished Korean video thumbnail. Follow the canvas size above: a 9:16 portrait canvas is the cover of a short-form video (Shorts, Reels), and a 16:9 landscape canvas is the thumbnail of a long-form YouTube video. The entire design must succeed first as a tiny preview on a phone. Its single most important test is whether the big headline copy remains instantly readable after the image is reduced to thumbnail size. Make one complete image, not a mockup, storyboard, template sheet, comparison grid, or design proposal.

[Scene]
The video is about: "【영상 주제】". Interpret it as one clear visual idea that can be recognized in less than a second. Use one dominant subject or one compact group of closely related objects, placed away from the lettering. Build a simple background with broad color areas, controlled depth, and very few supporting details. The subject supports the headline but never competes with it. Do not require an uploaded photo and do not imitate a real creator, celebrity, public figure, channel identity, or existing thumbnail. For a person-related topic, use an original, non-identifiable generic adult illustration or an anonymous cropped figure rather than a recognizable face. For an object or place topic, use an original generic depiction without visible brands, trademarks, packaging, signs, or copyrighted characters.

[Headline copy]
The headline copy is: "【큰 카피】". Use it exactly as written, unless it is exactly "알아서 골라줘" — never print those words.
If no headline copy is quoted above, or it is "알아서 골라줘", write it yourself from the video topic: one punchy Korean hook of at most 8 characters excluding spaces that makes a viewer want to tap — a result, a number that is implied by the topic, a contrast, or a curiosity gap. Plain spoken Korean, no English, no emoji. Never invent prices, statistics, rankings, medical effects, financial promises, or facts the topic does not support.

[Text layout]
- The headline is the dominant text. It stays on one line, and its visible letter height is at least one quarter of the canvas height. Use extremely bold Korean Gothic sans-serif lettering with wide, complete strokes. Give it a clean safe zone with generous padding. It must never sit over the main subject, a face, a hand, a detailed object, or a busy texture.
- Render "【작은 글씨】" on its own line close to the headline, clearly secondary but still readable on a phone. Never join it to the headline and never let it reduce the headline below the required size.
- For a 9:16 canvas, keep the headline and the main subject inside the central 80% width and the middle 70% height, leaving the top and bottom app-button zones quiet. Stack the text in one compact block; keep the subject above or below that block without overlap.
- For a 16:9 canvas, keep every letter inside the central 86% width and 78% height. Prefer a strong two-zone composition: headline area roughly 55-62% of the width and subject area roughly 38-45%. Keep the lower-right corner free of text because the video length badge covers it.
- Do not print the video topic or the atmosphere choice as extra text. They are visual instructions only.

[Style]
Use the atmosphere "【분위기】" to select the visual treatment while preserving maximum readability. "밝고 친근한" uses a clean light background, cheerful saturated accents, rounded shapes, and very dark text. "강렬하고 긴급한" uses a dark or vivid solid background, sharp diagonal energy, one hot accent color, and white or near-white text without alarm symbols. "깔끔하고 전문적인" uses restrained navy, charcoal, cream, or white, precise spacing, minimal geometric structure, and high-contrast lettering. "따뜻하고 감성적인" uses warm cream, muted terracotta, soft natural light, and deep brown lettering while keeping edges crisp. "어둡고 몰입감 있는" uses deep charcoal or midnight blue, one luminous accent object, and solid white lettering, but no glow may touch or blur the text. Use at most three principal colors. Add a simple solid text backing shape only if the background cannot provide reliable contrast.

[Visual hierarchy]
The headline is the first read by a large margin and has the strongest contrast in the image. The main subject is the second read and explains the topic without covering any character. The optional small line is the third read. Leave open space around all four sides of the headline. If space becomes tight, simplify or shrink the subject first, remove decoration second, and drop the small line third. Never shrink the headline below one quarter of the canvas height. Check the composition at about 10% of full size: every headline syllable must remain distinguishable immediately.

[Lighting and texture]
Use controlled, directional light or flat graphic lighting appropriate to the atmosphere. Keep the region behind the headline smooth and quiet. Any texture must be broad and low-frequency so Korean strokes do not disappear when reduced. Preserve crisp edges, opaque colors, and clear separation between foreground and background. Avoid haze, grain, patterned wallpaper, scattered particles, lens effects, or detailed scenery behind the words. Do not use a transparent canvas, letterboxing, unpainted margins, or black bars.

[Text rules]
Render only the headline and the small line if one is given above. Preserve every Korean syllable, space, digit, and punctuation mark of supplied text exactly. Never translate, paraphrase, correct, extend, or repeat it. Do not invent episode numbers, view counts, dates, prices, arrows, badges, labels, category words, quotation marks, or English words. Do not print field names, braces, instructions, the topic, the atmosphere, or aspect-ratio text. Ensure all Korean consonants, vowels, and final consonants have complete strokes. The headline must remain one line; if it seems too long, use the available width, tighten spacing modestly, or simplify the picture rather than wrapping, cropping, or hiding any character.

[Avoid]
No real YouTuber, entertainer, celebrity, politician, influencer, or recognizable person. No company, channel, product, platform, or media brand logo; no trademarked packaging; no copied creator style; no copyrighted character; no fake interface, browser window, phone frame, play button, notification badge, or social-media icon. No text behind a person or object, no object crossing a letter, no face used as a text background, and no busy photograph behind the headline. No thin headline font, low contrast, tiny lettering, long paragraph, curved text, vertical Korean text, duplicate headline, excessive outline, excessive drop shadow, neon bloom, glowing letter edges, lens flare, motion blur, illegible handwriting, warped Hangul, placeholder text, watermark, border, collage, split-screen comparison, decorative clutter, or more than one dominant subject.