Young Adult Gold Light Blue Deep Blue Warm Yellow Friendship Dreams Youth Book Cover Ideas with Love Stars Trees Silhouettes Nostalgia Path Buildings Autumn Leaves School Uniform Skirt Streetlamps Nighttime Campus Stage Lights

A serene nighttime campus scene forms the background, with a deep blue, star-speckled sky. At the top center, one especially bright star shines prominently. The silhouettes of a boy and a girl stand on a winding tree-lined campus path, holding hands and gazing upward. The boy is dressed in a crisp school uniform, and the girl's light blue skirt slightly flutters as if caught in a soft breeze. The distant buildings of the school campus create a shadowy skyline, with warm, glowing lights from a faraway stage blending softly into the scene. Scattered autumn leaves gently litter the ground, adding an air of seasonal nostalgia. Warm-colored streetlamps line the path, subtly illuminating the couple’s figures.

The book title “星光下的约定” appears at the top of the cover in an elegant, slightly cursive serif font, written in a soft gold hue to emulate the glow of starlight. The author name "岚岚" is placed subtly at the bottom center in small, minimalist white sans-serif font to maintain balance.

The night sky occupies the upper third of the cover with the title nestled in its center, while the silhouettes of the characters dominate the middle section, creating an emotional focal point. The lower third is reserved for the campus path leading into the horizon, framed by the soft glow of streetlights and scattered leaves. The author name is placed along the path in the lower center, bordered lightly by falling leaves.