高對比夜間肖像與閃光燈

A highly detailed JSON-formatted prompt for Gemini Nano Banana Pro, focusing on generating a high-contrast, polished lifestyle portrait at night. The prompt meticulously defines composition, color profile (complementary warm/cool tones), and lighting (hard flash on the subject against ambient city lights in the background).

{
"metadata": {
"image_type": "照片",
"primary_purpose": "社群媒體/肖像/生活方式"
},
"composition": {
"rule_applied": "中心構圖",
"aspect_ratio": "4:5",
"layout": "單一主體前景與廣闊深背景",
"focal_points": [
"主體明亮照臉部和清晰白襯衫",
"交疊雙手展示奢華手錶",
"背景中發光的城市燈光帶"
],
"visual_hierarchy": "觀眾視線從微笑的臉開始，沿著未扣襯衫的明亮V形向下到擺姿的雙手和手錶，然後向外移動到水平發光的城市燈光帶和山脈輪廓。",
"balance": "對稱主體放置與略微不對稱的背景景觀（右側有山脈）對比"
},
"color_profile": {
"dominant_colors": [
{
"color": "深黑/海軍藍",
"hex": "#0D1117",
"percentage": "55%",
"role": "背景夜空和西裝外套"
},
{
"color": "清晰白",
"hex": "#FFFFFF",
"percentage": "15%",
"role": "主體襯衫"
},
{
"color": "溫暖膚色",
"hex": "#C68767",
"percentage": "15%",
"role": "主體臉部和雙手"
},
{
"color": "金黃色",
"hex": "#F4C430",
"percentage": "10%",
"role": "裝飾城市燈光"
}
],
"color_palette": "互補色（溫暖金色/橙色燈光與涼爽深藍/黑色陰影）",
"temperature": "溫暖前景對比涼爽/中性深背景",
"saturation": "中等（膚色和燈光鮮豔，陰影深度去飽和）",
"contrast": "高對比"
},
"lighting": {
"type": "混合（直接人工閃光燈在主體，背景環境實用燈光）",
"source_count": "多光源 - 前景單一主導閃光燈，背景數千個點狀環境燈光",
"direction": "正面/略高",
"directionality": "高度方向性閃光燈",
"quality": "硬光（在下巴、衣領和雙手下創造清晰陰影）",
"intensity": "主體明亮/整體低調",
"contrast_ratio": "高對比（戲劇性前景隔離）",
"mood": "充滿活力/精緻/迷人",
"shadows": {
"type": "粗糙邊緣",
"density": "深黑",
"placement": "在下巴下、襯衫衣領後、雙手下、翻領下",
"length": "短"
},
"highlights": {
"treatment": "鏡面反射",
"placement": "在鼻尖、額頭、頭髮質感和手錶表面上"
},
"ambient_fill": "前景中缺失",
"light_temperature": "中性/略暖閃光燈"
},
"technical_specs": {
"medium": "數位攝影",
"style": "寫實/生活方式",
"texture": "光澤（頭髮、手錶）對比光滑布料和皮膚",
"sharpness": "主體超銳利",
"grain": "深背景天空中有數位噪點",
"depth_of_field": "中等（主體清晰，背景遙遠但結構可見，最小散景）",
"per

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