body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: linear-gradient(180deg, #f5f6fa 0%, #eceef6 100%);
    color: #1f2937;
    -webkit-font-smoothing: antialiased;
}

.login-meta {
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 20;
}

.login-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border: 1px solid #e3e8f0;
    background: rgba(255, 255, 255, 0.88);
    color: #4b5563;
    border-radius: 999px;
    text-decoration: none;
    font-size: 13px;
    transition: 0.2s;
    backdrop-filter: blur(6px);
}

.login-back:hover {
    border-color: #6366f1;
    color: #4f46e5;
    background: #fff;
}

.login-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    min-height: 100dvh;
    color: #6b7280;
    font-size: 14px;
}

#login-mount .nux-login-page {
    min-height: 100vh;
    min-height: 100dvh;
}

@media (max-width: 768px) {
    .login-meta {
        top: 12px;
        left: 12px;
    }
    .login-back {
        padding: 6px 12px;
        font-size: 12px;
    }
}