/* 灰蓝色 active 导航项样式 */
.nav-item.active .nav-link {
    background-color: #d4e3f1;
    border-radius: 4px;
    transition: background-color 0.3s;
}

/* 悬停时加深颜色 */
.nav-item.active .nav-link:hover {
    background-color: #99b5cb;
}

#uidText {
    cursor: pointer;
    position: relative;
    display: inline-block;
}

#copyTip {
    position: absolute;
    right: -60px;
    top: 0;
    background: #4caf50;
    color: white;
    padding: 2px 4px;
    font-size: 12px;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.login-container {
    max-width: 400px;
    margin-top: 100px;
    padding: 30px;
    background: #fff;
    border-radius: 1rem;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.btn-login {
    position: absolute;
    bottom: 20px;
    right: 20px;
}

.form-wrapper {
    position: relative;
    padding-bottom: 60px; /* 留出空间给按钮 */
}