/* 导航栏样式 */
.navbar {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95); /* 半透明白色背景 */
    box-shadow: 0 2px 10px rgba(0, 86, 179, 0.1); /* 带蓝色的阴影 */
    z-index: 1000;
    padding: 0.5rem 0;
    backdrop-filter: blur(5px); /* 添加模糊效果 */
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}

.navbar-logo {
    display: flex;
    align-items: center;
}

.navbar-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
}

.logo-img {
    height: 50px;
    margin-right: 10px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.navbar-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 2px 0;
    transition: var(--transition);
}

.navbar-menu {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-item {
    margin: 0 0.5rem;
}

.nav-link {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-color);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    width: 100%;
}

.navbar-contact {
    display: flex;
    align-items: center;
}

.contact-phone {
    display: flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.contact-phone:hover {
    color: var(--secondary-color);
}

.contact-phone i {
    margin-right: 5px;
    font-size: 1.2rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .navbar-contact {
        display: none;
    }
}

@media (max-width: 768px) {
    .navbar-toggle {
        display: flex;
    }
    
    .navbar-menu {
        flex-basis: 100%;
        display: none;
        transition: var(--transition);
    }
    
    .navbar-menu.active {
        display: block;
    }
    
    .nav-list {
        flex-direction: column;
        padding: 1rem 0;
    }
    
    .nav-item {
        margin: 0;
    }
    
    .nav-link {
        padding: 0.75rem 0;
    }
    
    .navbar .container {
        flex-wrap: wrap;
    }
}