/* ========================================
   user-menu.css - 导航栏右侧用户头像下拉菜单
   悬停头像弹出：昵称 + 个人中心 + 退出登录
   ======================================== */

.user-menu {
    position: relative;
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.user-avatar {
    position: relative;
    cursor: pointer;
    padding: 4px;
}

/* 头像 */
.user-avatar>img {
    display: block;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
}

.user-avatar:hover>img {
    transform: scale(1.1);
    box-shadow: 0 4px 14px rgba(238, 130, 238, 0.45);
}

/* 头像与下拉框之间的隐形连接区，防止悬停中断 */
.user-avatar::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 12px;
}

/* 下拉菜单 */
.user-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 12px);
    min-width: 150px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    overflow: hidden;
    z-index: 2000;
    animation: dropdown-in 0.25s ease;
}

/* 小箭头 */
.user-dropdown::before {
    content: '';
    position: absolute;
    top: -6px;
    right: 20px;
    width: 12px;
    height: 12px;
    background: #fff;
    transform: rotate(45deg);
    border-radius: 2px;
}

/* 悬停显示下拉框 */
.user-avatar:hover .user-dropdown,
.user-avatar:focus-within .user-dropdown,
.user-dropdown:hover {
    display: block;
}

.user-avatar:focus-visible>img,
.user-avatar:focus-within>img {
    transform: scale(1.06);
    box-shadow: 0 0 0 3px rgba(238, 130, 238, 0.35), 0 4px 14px rgba(238, 130, 238, 0.45);
}

@keyframes dropdown-in {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 下拉框：昵称区 */
.user-name {
    padding: 10px 16px 9px;
    font-size: 14px;
    font-weight: bold;
    color: #333;
    background: #FFF5EE;
    border-bottom: 1px solid #f0e6e6;
}

/* 下拉框：菜单项 */
.user-dropdown a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    font-size: 14px;
    color: #333;
    text-decoration: none;
    transition: background-color 0.2s, color 0.2s;
}

.user-dropdown a:hover,
.user-dropdown a:focus-visible {
    background: #e8f7ff;
    color: #EE82EE;
    text-decoration: none;
}

/* 退出登录项 hover 用红色，提示性强一点 */
.user-dropdown a:last-child:hover {
    background: #ffeef0;
    color: #e74c3c;
}