.login-btn {
    background-color: #1677ff;
    border: none;
    color: #fff;
    padding: 0 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
    height: 32px;
    line-height: 32px;
    display: flex;
    align-items: center;
}

.login-btn:hover {
    background-color: #0e5ecf;
}

.user-menu {
    position: relative;
    display: flex;
    align-items: center;
    height: 45px;
}

.user-avatar {
    width: 39px;
    height: 39px;
    border-radius: 50%;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 19px;
    cursor: pointer;
    margin-right: 8px;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-avatar span {
    font-size: 19px;
    color: #666;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: #fff;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    width: 180px;
    display: none;
    z-index: 1000;
    margin-top: 8px;
}

.dropdown-menu.show {
    display: block !important;
}

.menu-item {
    padding: 12px 16px;
    border-bottom: 1px solid #f0f0f0;
    color: #333;
    text-decoration: none;
    display: block;
    transition: background-color 0.3s;
}

.menu-item:hover {
    background-color: #f5f7fa;
}

.menu-item:last-child {
    border-bottom: none;
    color: #ff4d4f;
}