.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    display: block;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-menu-btn span {
    background: #511E84;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}
.nav-links {
    display: none;
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
}

.nav-links a {
    width: 100%;
}

.nav-links.mobile-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(16px);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
    padding: 1.5rem 1.25rem;
    z-index: 40;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex !important;
        flex-direction: row;
        align-items: center;
        gap: 2rem;
        position: static;
        width: auto;
        background: transparent;
        padding: 0;
    }

    .nav-links a {
        width: auto;
    }

    .nav-links.mobile-open {
        box-shadow: none;
        background: transparent;
        backdrop-filter: none;
    }

         .navbar-white a{
    color:#fff !important;
 }
}

/* 导航栏滚动样式 */
.navbar {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(16px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}

.navbar  a{
    transition: color 0.3s;
}
.navbar  .nav-logo-img{
  transition: all 0.3s;
}


.navbar-white .mobile-menu-btn span{
     background: #fff;
}