.navbar{
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    width: 100%;
    height: min(8.5vh, 6vw);
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 20px;
    box-sizing: border-box;
    margin: 0;
}

.navbar img[alt="Logo"] {
    height: 70%;
    width: auto;
    object-fit: contain;
}

.navbar a{
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}
.nav_logo_p{
    color: white;
    margin-top: 10px;
    margin-left: 15px;
    font-size: 1.5rem;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}
.nav_list{
    display: flex;
    margin-left: min(3vh, 2vw);
}
.nav_list li{
    margin: auto 2vw;
    position: relative;
}

.nav_login_box{
    display: flex;
    margin-left: auto;
    margin-right: 20px;
    align-items: center;
}


.nav_here_box{
    display: flex;
    align-items: center;
    margin: auto;
    width: fit-content;
    height: min(3vh, 2vw);
    border-left: 1px solid rgba(255, 255, 255, 0.3);
    border-right: 1px solid rgba(255, 255, 255, 0.3);
    padding: 5px 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
}

.nav_here_box p{
    margin: 0;
    color: white;
    font-size: 0.9rem;
    line-height: 1;
}

.nav_here_png{
    height: 1.5em;
    width: auto;
    margin-right: 8px;
    object-fit: contain;
}

.nav_login_box li{
    margin: auto 2vw;
}

.nav_list a:hover {
    color: #ffd700;
    transform: translateY(-2px);
}

.nav_list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: #ffd700;
    transition: width 0.3s ease;
}

.nav_list a:hover::after {
    width: 80%;
}

.dropdown {
    margin-left: 20px;
    position: relative;
    display: inline-flex;
    align-items: center;
}

.nav_avatar {
    height: 80%;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.nav_avatar:hover {
    border-color: #ffd700;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.4);
}

.dropdown-content {
    display: none;
    position: absolute;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    min-width: 160px;
    box-shadow: 0px 8px 20px 0px rgba(0,0,0,0.3);
    z-index: 1001;
    right: 0;
    top: 100%;
    border-radius: 12px;
    padding: 10px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.dropdown-content::after {
    content: '';
    position: absolute;
    top: -10px;
    right: 20px;
    border-width: 5px;
    border-style: solid;
    border-color: transparent transparent #ffffff transparent;
}

.dropdown-content a {
    color: #333;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.dropdown-content a:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateX(5px);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.3);
}

.dropdown:hover .dropdown-content {
    display: block;
    animation: slideDown 0.3s ease;
}

.dropdown:hover .nav_avatar {
    cursor: pointer;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1000px) {
    .nav_list li{
        margin: auto 2vw;
    }
    .nav_list{
        margin-left: 0;
        padding-left: 5vw;
    }

    .nav_logo_p{
        font-size: 1.2rem;
    }
    .navbar{
        padding: 0 10px;
    }
}