.login_overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.login_overlay.active {
    display: flex;
}

.login_box {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    max-width: 400px;
    width: 90%;
    padding: 30px 24px 24px;
    position: relative;
    text-align: center;
}

.login_close {
    position: absolute;
    top: 10px;
    right: 14px;
    font-size: 22px;
    color: #999;
    cursor: pointer;
    border: none;
    background: none;
    line-height: 1;
}

.login_close:hover {
    color: #333;
}

.login_title {
    font-size: 18px;
    font-weight: 600;
    color: #1a56db;
    margin-bottom: 20px;
}

.login_body p {
    font-size: 14px;
    color: #4a5568;
    line-height: 1.8;
    margin: 0;
}

.login_body .login_code {
    font-size: 24px;
    font-weight: 700;
    color: #e53e3e;
    letter-spacing: 4px;
    margin: 10px 0;
}

.login_body img.login_qr {
    width: 200px;
    margin: 15px auto;
    display: block;
}

.login_status {
    font-size: 13px;
    color: #718096;
    margin-top: 12px;
}