/* 顶部导航：非重复、分组式微粒背景 */
#navbar {
    overflow: hidden !important;
    border-bottom-color: rgba(126, 231, 255, 0.18) !important;
    box-shadow: 0 10px 30px rgba(2, 8, 28, 0.32) !important;
}

#navbar::after { display: none; }

/* 恢复导航原有的细分隔线。 */
#navbar::before { display: none; }

.nav-particle-canvas {
    position: absolute !important;
    inset: 0 !important;
    z-index: 0 !important;
    width: 100% !important;
    height: 100% !important;
    pointer-events: none;
    opacity: 0.66;
}

#navbar > :not(.nav-particle-canvas) {
    position: relative;
    z-index: 1;
}

/* 宽屏时让导航项随可用空间舒展分布；中小屏保留原有紧凑间距。 */
@media (min-width: 1280px) {
    .desktop-nav-menu {
        width: clamp(460px, 40vw, 680px);
        justify-content: space-between;
    }

    .desktop-nav-menu > * + * {
        margin-left: 0 !important;
    }
}

/* 页脚信息分组：品牌、关于我们、产品服务、联系方式。 */
.footer-about { order: 2; }
.footer-products { order: 3; }
.footer-contact { order: 4; }
.footer-brand { text-align: center; transform: translateX(-29px); }
.footer-brand > .flex { justify-content: center; }