body {
    background: linear-gradient(135deg, #ADD3F6 0%, #E6F0FA 100%); /* 使用主题色 */
}

/* 星空背景动画 */
.stars {
    position: fixed;
    left: 0%;
    top: 0%;
    width: 100%;
    height: 100%;

    pointer-events: none;
    z-index: -1;
}

.star {
    position: absolute;
    background: white;
    border-radius: 50%;
    animation: twinkle 1.5s infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-15px);
    }
}

@keyframes twinkle {
    0% {
        opacity: 0.2;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.2;
    }
}