body.ri-login-guard-open {
    overflow: hidden !important;
}

.ri-login-guard-backdrop {
    position: fixed;
    inset: 0;
    z-index: 2147483000;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    padding: 24px 16px;
    overflow-y: auto;
    background: rgba(0, 0, 0, .58);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

.ri-login-guard-card {
    flex: 0 0 auto;
    box-sizing: border-box;
    width: 384px;
    max-width: 100%;
    margin: auto;
    padding: 28px 24px 24px;
    border: 1px solid rgba(255, 255, 255, .6);
    border-radius: 18px;
    background: #fff;
    box-shadow: 0 24px 70px rgba(0, 0, 0, .18);
    text-align: center;
    color: #1f2937;
    animation: ri-login-guard-enter .18s ease-out both;
}

.ri-login-guard-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ff2d70 10%, #ff6424 90%);
    box-shadow: 0 6px 15px rgba(255, 69, 85, .22);
    color: #fff;
}

.ri-login-guard-icon svg {
    display: block;
    width: 32px;
    height: 32px;
}

.ri-login-guard-card #ri-login-guard-title {
    margin: 0 0 10px;
    padding: 0;
    border: 0;
    font-size: 19px;
    line-height: 1.5;
    font-weight: 700;
    color: #1f2937;
}

.ri-login-guard-card .ri-login-guard-message {
    margin: 0;
    font-size: 14px;
    line-height: 1.8;
    color: #6b7280;
}

.ri-login-guard-card .ri-login-guard-warning {
    margin: 14px 0 20px;
    padding: 9px 8px;
    border-radius: 8px;
    background: #fff2f4;
    color: #e33b58;
    font-size: 14px;
    line-height: 1.6;
    font-weight: 600;
}

.ri-login-guard-card .ri-login-guard-login {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 42px;
    box-sizing: border-box;
    padding: 10px 16px;
    border: 0;
    border-radius: 10px;
    background: linear-gradient(105deg, #f42fa1, #6a55ff);
    color: #fff;
    font-size: 14px;
    line-height: 1.5;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: filter .15s;
}

.ri-login-guard-card .ri-login-guard-login:hover {
    color: #fff;
    filter: brightness(1.06);
}

.ri-login-guard-card .ri-login-guard-login:focus-visible {
    outline: 3px solid #bdb1ff;
    outline-offset: 4px;
}

@keyframes ri-login-guard-enter {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
    .ri-login-guard-card { animation: none; }
}