自然风光：冰岛蓝湖

Wide shot at eye level of the Blue Lagoon geothermal spa in late afternoon, the milky, brilliant blue-cyan water glowing against the black lava field that surrounds it, with swirling white silica patterns drifting across the surface like clouds. Gentle steam rises in soft, drifting clouds from the warm water, glowing warmly where the low sun backlights it. A lone person relaxes in the shallow water in the middle distance, their silhouette small against the vast turquoise expanse, giving a sense of scale. The dark lava rocks in the foreground are covered with patches of vivid green moss, contrasting with the glowing water. The low sun casts a golden sheen across the surface, turning part of the pool to liquid gold. Lighting: warm, low backlit afternoon sun, soft and hazy through the steam. Color palette: cerulean blue, milky cyan, black lava, green moss, warm gold light. Dreamy, ethereal detail, 4k