#iebgp-overlay {
    position: fixed;
    inset: 0;
    z-index: 2147483647;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 22px;
    background: rgba(0,0,0,.62);
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

#iebgp-overlay * {
    box-sizing: border-box;
}

.iebgp-card {
    position: relative;
    width: min(92vw, 430px);
    padding: 30px 24px 22px;
    background: #fff;
    border-radius: 18px;
    text-align: center;
    box-shadow: 0 16px 50px rgba(0,0,0,.3);
}

.iebgp-close {
    position: absolute;
    top: 8px;
    right: 12px;
    border: 0;
    background: transparent;
    color: #555;
    font-size: 30px;
    line-height: 1;
    cursor: pointer;
}

.iebgp-logo {
    display: block;
    max-width: 210px;
    max-height: 72px;
    margin: 0 auto 18px;
    object-fit: contain;
}

.iebgp-title {
    font-size: 21px;
    line-height: 1.5;
    font-weight: 700;
    color: #222;
    margin-bottom: 12px;
}

.iebgp-message {
    font-size: 15px;
    line-height: 1.75;
    color: #444;
    margin-bottom: 18px;
}

.iebgp-steps {
    display: grid;
    gap: 10px;
    margin: 18px 0 14px;
    text-align: left;
}

.iebgp-step {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 12px 14px;
    border: 1px solid #e5e5e5;
    border-radius: 12px;
    background: #fafafa;
    color: #222;
    font-size: 15px;
    font-weight: 600;
}

.iebgp-step span {
    display: inline-flex;
    width: 28px;
    height: 28px;
    flex: 0 0 28px;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: #222;
    color: #fff;
    font-size: 14px;
}

.iebgp-note {
    font-size: 13px;
    line-height: 1.6;
    color: #666;
}

.iebgp-ok {
    width: 100%;
    margin-top: 18px;
    padding: 13px 16px;
    border: 0;
    border-radius: 11px;
    background: #222;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
}

.iebgp-top-guide {
    position: fixed;
    top: max(10px, env(safe-area-inset-top));
    right: 10px;
    z-index: 2147483647;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    pointer-events: none;
    animation: iebgpPulse 1.3s ease-in-out infinite;
}

.iebgp-arrow {
    font-size: 54px;
    line-height: 1;
    color: #fff;
    text-shadow: 0 2px 12px rgba(0,0,0,.5);
    transform: rotate(-8deg);
}

.iebgp-top-text {
    margin-top: -4px;
    padding: 7px 10px;
    border-radius: 10px;
    background: rgba(255,255,255,.96);
    color: #222;
    font-size: 13px;
    font-weight: 700;
    box-shadow: 0 4px 18px rgba(0,0,0,.2);
}

@keyframes iebgpPulse {
    0%,100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(4px); opacity: .82; }
}

@media (max-width: 380px) {
    .iebgp-card {
        padding: 26px 18px 18px;
    }
    .iebgp-title {
        font-size: 19px;
    }
    .iebgp-top-text {
        font-size: 12px;
    }
}