一个专业的高端平面设计广告构图，置于纯白色画布之上。画面中央是一个完美对称的大型实心圆角正方形（非空心边框）。该正方形的整个内部填充着…

A professional high-end graphic design advertisement composition on a pure solid white canvas. Centered is a perfectly symmetrical, large solid rounded square (not a hollow frame). The entire interior of this square is filled with a smooth, vibrant color gradient fading from [Top-Left Color/Hex] to [Bottom-Right Color/Hex]. A [Description of Character] is wearing [Outfit — light or neutral base with the brand's colors as accents only, never the same tone as the dominant half of the gradient], the pale fabric separating them clearly from the background. They stand centred in the frame, with [Body Angle: squared to the camera / turned three-quarters to one side with the face brought back toward the lens], their expression [Expression]. They are positioned such that the bottom of their torso is perfectly flush and aligned with the very bottom edge of the square, leaving no thick colored border visible beneath them. Crucially, the person and their clothing maintain natural, realistic colors and textures, illuminated by professional studio lighting that is independent of the background gradient (preventing any color cast on their skin or clothes). [Product Hold]. Crucially, the top of their head and hair break the top boundary of the square, partially overlapping the white background. Their hands, forearms and the [Product Name] also break the side boundaries for a powerful 3D breakout effect, extending onto the white canvas. Typography Layout: At the top, in the white space distinctly above the square with a clear gap, is the brand text '[Brand Name]' set in the official [Brand] wordmark typeface — [Font Description] — and filled with a smooth left-to-right gradient running from [Top-Left Color/Hex] to [Bottom-Right Color/Hex], matching the background palette rather than flat black. In the bottom-right corner, layered directly on top of the gradient inside the square, is a block of small, thin, clean [Bottom Text Color] descriptive text: '[Short Slogan]'. The lighting is [Lighting Type], crisp, and commercial, with a subtle rim light separating the subject's shoulders from the background, emphasizing the textures of both the subject and the product. Product Hold — pick one: Two-handed products (anything wide or heavy enough to need both hands): They hold the [Product] out in front of their chest, closer to the camera than their body, one hand gripping [edge A] and the other steadying [edge B], fingers placed only at the edges so no part of the front face is covered, with the [main face] turned flat toward the camera in sharp macro detail. One-handed products (anything small enough to hold in a single hand): They raise one hand beside their face holding the [Product] between thumb and fingers at its true natural size, their hand in correct anatomical proportion to their head, the arm lifted so the product sits closer to the camera than their face, with the [main face] turned flat toward the lens in sharp macro detail.

一个专业的高端平面设计广告构图，置于纯白色画布之上。画面中央是一个完美对称的大型实心圆角正方形（非空心边框）。该正方形的整个内部填充着从 [Top-Left Color/Hex] 平滑渐变到 [Bottom-Right Color/Hex] 的鲜艳色彩渐变。 [Description of Character] 穿着 [Outfit — 浅色或中性色作为底色，仅以品牌色作为点缀，绝不与渐变主导色调相同]，浅色面料将他们与背景清晰分隔。他们居中站立于画面中，[Body Angle: 正对镜头 / 身体侧转四分之三而脸部转回朝向镜头]，表情为 [Expression]。他们的位置使躯干底部与正方形最底边完全齐平对齐，其下方没有可见的厚色彩边框。关键是，人物及其服装保持自然、真实的色彩与质感，由独立于背景渐变的专业影棚灯光照明（防止任何色彩投射到皮肤或衣物上）。 [Product Hold]。关键的是，他们的头顶和头发突破正方形的顶部边界，部分叠加在白色背景上。他们的双手、前臂以及 [Product Name] 也突破侧边界，形成强烈的 3D 破框效果，延伸至白色画布之上。 排版布局：在顶部正方形上方明显留有清晰间隙的白色空间中，是品牌文字 '[Brand Name]'，使用官方 [Brand] 字标字体 — [Font Description] — 并填充从 [Top-Left Color/Hex] 到 [Bottom-Right Color/Hex] 的平滑左到右渐变，与背景色调一致而非纯黑色。在右下角，直接叠印在正方形内渐变之上，是一小段细而简洁的 [Bottom Text Color] 说明文字：'[Short Slogan]'。 光线为 [Lighting Type]，清晰且具有商业感，带有微妙的轮廓光将主体肩膀与背景分离，强调主体和产品的质感。 产品持握方式 — 二选一： 双手持握的产品（任何需要双手握持的宽大或沉重产品）：他们将 [Product] 举起至胸前，靠近镜头比身体更近，一只手握住 [edge A]，另一只手稳住 [edge B]，手指仅放置在边缘，因此正面没有任何部分被遮挡，[main face] 平直朝向镜头，呈锐利的微距细节。 单手持握的产品（任何可以单手握住的小型产品）：他们将一只手举至脸旁，用拇指与手指以真实自然大小夹住 [Product]，手部与头部保持正确的解剖比例，手臂抬起使产品比脸部更靠近镜头，[main face] 平直朝向镜头，呈锐利的微距细节。