/* 导航栏样式 —— 默认透明，随页面滚动切换为深色玻璃质感 */
.navbar {
    background: rgba(5, 7, 12, 0);
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    box-shadow: none;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background 0.4s ease, backdrop-filter 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
    border-bottom: 1px solid transparent;
}

.navbar.is-scrolled {
    background: rgba(10, 17, 32, 0.7);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 8px 26px rgba(2, 6, 14, 0.3);
    border-bottom: 1px solid rgba(156, 198, 236, 0.12);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo-section {
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: opacity 0.3s;
}

.logo-section:hover {
    opacity: 0.8;
}

.logo {
    height: 70px;
    width: auto;
    padding: 8px 12px;
    border-radius: 8px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0;
    flex: 1;
    margin-left: 40px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    color: var(--ice-blue, #cfe8ff);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s;
    cursor: pointer;
}

.nav-link:hover {
    color: var(--electric-blue, #5996FF);
}

.nav-link.active {
    color: var(--electric-blue, #5996FF);
    background: rgba(56, 189, 248, 0.12);
    border-radius: 6px;
}

.arrow {
    font-size: 0.7rem;
    margin-left: 5px;
    transition: transform 0.3s;
}

.nav-item:hover .arrow {
    transform: rotateX(180deg);
}

/* 下拉菜单 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(10, 17, 32, 0.96);
    backdrop-filter: blur(10px);
    min-width: 200px;
    border-radius: 8px;
    border: 1px solid rgba(156, 198, 236, 0.14);
    box-shadow: 0 14px 30px rgba(2, 6, 14, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s;
    margin-top: 0;
    z-index: 200;
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 12px 20px;
    color: var(--ice-blue, #cfe8ff);
    text-decoration: none;
    transition: all 0.3s;
    font-size: 0.9rem;
}

.dropdown-menu a:first-child {
    border-radius: 8px 8px 0 0;
}

.dropdown-menu a:last-child {
    border-radius: 0 0 8px 8px;
}

.dropdown-menu a:hover {
    background: rgba(56, 189, 248, 0.12);
    padding-left: 25px;
    color: var(--electric-blue, #5996FF);
}


.dropdown-menu a.active,
.submenu-trigger.active>a {
    color: var(--electric-blue, #5996FF);
    background: rgba(56, 189, 248, 0.1);
}

.submenu-trigger {
    position: relative;
}

.submenu-trigger>a {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.submenu-menu {
    position: absolute;
    left: 100%;
    top: 0;
    min-width: 230px;
    background: rgba(10, 17, 32, 0.96);
    backdrop-filter: blur(10px);
    border-radius: 8px;
    border: 1px solid rgba(156, 198, 236, 0.14);
    box-shadow: 0 14px 30px rgba(2, 6, 14, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateX(-8px);
    transition: all 0.25s;
}

.submenu-trigger:hover .submenu-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* 二维码容器 */
.qrcode-container {
    padding: 20px;
    text-align: center;
    min-width: 180px;
}

.qrcode-container p {
    margin-bottom: 10px;
    font-size: 0.9rem;
    color: var(--ice-blue, #cfe8ff);
}

.qrcode {
    width: 150px;
    height: 150px;
    border-radius: 5px;
}

.qr-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed rgba(156, 198, 236, 0.4);
    background: rgba(255, 255, 255, 0.04);
    color: rgba(207, 232, 255, 0.6);
    font-size: 0.85rem;
}

/* 右侧导航 */
.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 35px;
    height: 35px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: transform 0.3s;
    color: var(--ice-blue, #cfe8ff);
    text-decoration: none;
    border-radius: 50%;
}

.nav-icon:hover {
    transform: scale(1.1);
    background: rgba(56, 189, 248, 0.14);
}

.customer-service-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 35px;
    height: 35px;
    color: var(--ice-blue, #cfe8ff);
    text-decoration: none;
    border-radius: 50%;
    font-size: 1rem;
    transition: all 0.3s;
}

.customer-service-link:hover {
    color: var(--electric-blue, #5996FF);
    background: rgba(56, 189, 248, 0.14);
    transform: translateY(-1px);
}

.btn-contact {
    background: linear-gradient(135deg, var(--electric-blue, #5996FF) 0%, #E23AFB 100%);
    color: white;
    border: none;
    padding: 10px 25px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s;
    text-decoration: none;
}

.btn-contact:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(56, 189, 248, 0.35);
}

/* 响应式导航 */
@media (max-width: 768px) {
    .nav-container {
        height: 60px;
        padding: 0 15px;
    }

    .logo {
        height: 40px;
    }

    .nav-menu {
        margin-left: 20px;
        gap: 5px;
    }

    .nav-link {
        padding: 8px 10px;
        font-size: 0.85rem;
    }

    .dropdown-menu {
        min-width: 150px;
    }

    .btn-contact {
        padding: 8px 15px;
        font-size: 0.8rem;
    }

    .nav-right {
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .nav-menu {
        display: none;
    }

    .nav-right {
        gap: 8px;
    }

    .btn-contact {
        padding: 6px 12px;
        font-size: 0.75rem;
    }

    .nav-icon {
        width: 30px;
        height: 30px;
        font-size: 1rem;
    }
}