Based on the provided white-background product images, generate a glass insulated teapot structure description page. The product originally had no brand information, so no brand name, slogan, logo, model, capacity, or numeric text were added. The image features a light oatmeal background, with the top left aligned and elegant high-contrast serif lettering "Double-layer insulation structure / Warmth slowly continues," accompanied by a line of lightweight sans-serif below to explain the material. The middle section enlarges the transparent teapot, with abstract warm orange streamlines and semi-transparent arrows inside representing thermal circulation. On the left side of the teapot, two thin glass slices are unfolded to reveal the interlayer structure; Orange short lines dot the base of the pot to create a visual rhythm of temperature diffusion. In the lower half, there's a dark coffee-colored rounded information board titled "Guard with Heart, Stay Warm for a Longer Time." Inside the board, a golden-orange curve without specific values gently descends from left to right, with four equidistant nodes labeled "Initial," "Morning," "Afternoon," and "Evening." The title font is fine serif font, and curved annotations are clear sans-serif font. Do not obscure the actual holding duration, temperature, test data, original image model, watermarks, webpage dividers, footnotes, or text obstruction.