/* 默认皮肤 - 毛玻璃蓝调 */
body {
    background: #e8ecf1;
}
.box_first {
    background: transparent;
}
#search-form {
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.25);
}
#search-input {
    color: #fff;
}
.footer {
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(16px);
    color: rgba(255,255,255,0.85);
}