科普图表：深海分层长卷

Scientific infographic cross-section poster of ocean depth zones, front-view flat vertical presentation. Layout: a tall vertical cross-section panel of the ocean divided into five horizontal bands: epipelagic (0-200m, sunlit), mesopelagic (200-1,000m, twilight), bathypelagic (1,000-4,000m, midnight), abyssopelagic (4,000-6,000m) and hadal (6,000m+), each band labeled with depth range, water temperature, pressure in atmospheres and percentage of sunlight remaining. Each zone shows small flat icons of its characteristic creatures: dolphins, tuna, lanternfish, giant squid, anglerfish, gulper eel, tripod fish, sea cucumber and snailfish. A right-side depth ruler with tick marks and a left-side light-penetration arrow complete the layout. Color system: gradient blues from bright cyan (#48CAE4) at the surface to deep indigo (#0B1B3D) at the bottom, with warm yellow accent icons in dark zones for bioluminescence. Typography: bold sans-serif headers per band, thin numeric data captions. Background: subtle water-line texture with faint vertical light rays from above. Data feel: marine biology textbook plate with precise scale. Lighting: top-down light shaft fading with depth, glow accents on bioluminescent icons. 4k