AI 手势挑战动漫横幅
一张色彩鲜艳的动漫社交媒体横幅，用于推广日本 AI 手势挑战，包含五位少女和五张难度等级卡片。
Goal: Create a bright anime event banner for an AI hand-sign challenge, featuring five illustrated girls demonstrating different hand gestures, with bold Japanese promotional typography and difficulty cards.
Canvas: Wide horizontal banner, 16:9 aspect ratio, approximately 1200×675. Use a luminous fantasy greenhouse or glass atrium background with soft blue-white daylight, bokeh sparkles, pastel lens flare, and a polished social-media campaign look.
Main headline: At the top center, place a large colorful title reading {argument name="headline text" default="#AI ハンドサイン チャレンジ"}. Use thick rounded Japanese display lettering with a pink-to-purple-to-blue gradient, white outline, drop shadow, small star sparkles, and a simple blue line-art waving hand icon near the title. Under it, add a small blue-pink ribbon label reading {argument name="subtitle text" default="あなたの推しハンドサインを見せてください！"}.
Characters: Show exactly 5 anime-style young women arranged shoulder-to-waist across the middle, overlapping slightly, all with detailed glossy illustration quality and expressive hand poses. From left to right: 1) a black-haired fox-ear girl in a deep red off-shoulder kimono-like outfit, holding one hand thoughtfully near her chin; 2) a short blonde bob-haired girl in a white camisole and translucent pale jacket, posing with a peace sign; 3) a black-haired girl in the center wearing a black top and beige cardigan, touching one cheek with one hand; 4) a long blonde-haired girl in a white blouse reaching toward the viewer with a clear pointing gesture; 5) a lavender-blue braided-hair maid or gothic lolita girl in a black-and-white dress and frilled headband, forming a heart shape with both hands. The face area may be softly obscured or left less detailed, but the hands must be anatomically clear and central.
Bottom difficulty cards: Along the bottom, create exactly 5 rounded rectangular cards with thin colored borders, soft pastel fills, small sparkle decorations, and simple line-art hand icons. The cards must read, from left to right: 1) "Lv.2" and "ピースサイン" with a peace-sign hand icon; 2) "Lv.3" and "頬に手を添える" with a cheek-touching hand icon; 3) "Lv.6" and "指差し" with a pointing-hand icon; 4) "Lv.7" and "手でハート" with two hands making a heart icon; 5) "Lv.9" and "顎の前で手を組む" with clasped hands under chin icon. Make the level numbers large and color-coded: red/orange for Lv.2, orange for Lv.3, blue for Lv.6, purple-pink for Lv.7, and violet for Lv.9.
Visual style: High-quality modern anime key visual, soft painterly rendering, saturated but airy pastel colors, glossy hair highlights, clean typography, cute challenge-poster energy, sparkles throughout, crisp foreground against a dreamy blurred background.
Constraints: Keep the exact count of 5 characters and 5 bottom cards. Emphasize readable Japanese text and accurate hand gestures. Avoid extra logos, dates, watermarks, or unrelated text.目标：为 AI 手势挑战创作一张明亮的动漫活动横幅，展示五位演示不同手势的插画少女，并配有醒目的日语宣传字体和难度卡片。
画布：宽幅横向横幅，16:9 比例，约 1200×675。背景使用明亮的梦幻温室或玻璃中庭，带有柔和的蓝白色日光、散景光斑、柔和的镜头光晕，呈现精致的社交媒体宣传风格。
主标题：在顶部中央放置一个醒目的彩色标题，内容为 {argument name="headline text" default="#AI ハンドサイン チャレンジ"}。使用粗体圆润的日语展示字体，采用粉色到紫色再到蓝色的渐变色，配有白色描边、投影、小星星光斑，标题旁配有一个简单的蓝色线条手势图标。在其下方添加一个蓝粉色丝带标签，内容为 {argument name="subtitle text" default="あなたの推しハンドサインを見せてください！"}。
角色：在画面中部展示 5 位动漫风格的年轻女性，从肩部到腰部排列，略有重叠，均具有细腻的光泽插画质感和生动的手势。从左至右依次为：1) 一位黑发狐耳少女，身穿深红色露肩和服风格服装，一只手托腮沉思；2) 一位短金发波波头少女，身穿白色吊带和半透明浅色外套，比出剪刀手；3) 一位居中的黑发少女，身穿黑色上衣和米色开衫，一只手轻触脸颊；4) 一位长金发少女，身穿白色衬衫，向观众做出清晰的指点手势；5) 一位淡紫色编发女仆或哥特萝莉风格少女，身穿黑白连衣裙和荷叶边发带，双手比出爱心形状。面部区域可以稍微模糊或简化处理，但手部必须解剖结构清晰且位于中心位置。
底部难度卡片：在底部创建 5 张圆角矩形卡片，带有细彩色边框、柔和的粉彩色填充、小闪光装饰以及简单的线条手势图标。卡片从左至右依次为：1) “Lv.2” 和 “ピースサイン”，配剪刀手图标；2) “Lv.3” 和 “頬に手を添える”，配触脸手势图标；3) “Lv.6” 和 “指差し”，配指点手势图标；4) “Lv.7” 和 “手でハート”，配双手爱心图标；5) “Lv.9” 和 “顎の前で手を組む”，配下巴处合十手势图标。等级数字需醒目且采用颜色编码：Lv.2 为红/橙色，Lv.3 为橙色，Lv.6 为蓝色，Lv.7 为紫粉色，Lv.9 为紫罗兰色。
视觉风格：高质量现代动漫主视觉图，柔和的绘画渲染，色彩饱和但通透的粉彩色调，光泽感发丝高光，清晰的排版，可爱的挑战海报氛围，画面充满光斑，前景清晰，背景梦幻模糊。
约束条件：保持 5 个角色和 5 张底部卡片的精确数量。强调易读的日语文本和准确的手势。避免出现额外的标志、日期、水印或无关文本。