.corner-banner {
    position: fixed;
    bottom: 50px;
    right: 10px;
    z-index: 9999;
}

.corner-banner img {
    width: 220px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.close-btn {
    position: absolute;
    top: -10px;
    right: -10px;
    background: red;
    color: white;
    font-size: 22px;
    font-weight: bold;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    text-align: center;
    line-height: 30px;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.line-oa-icon {
    position: fixed;
    bottom: 50px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 9999;
    transition: transform 0.3s;
}

.line-oa-icon:hover {
    transform: scale(1.1);
}

.line-oa-icon img {
    width: 40px;
    height: 40px;
}

@media (max-width: 900px) {
    .corner-banner img {
        width: 160px;
    }

    .corner-banner {
        bottom: 8px;
        right: 8px;
    }

    .close-btn {
        font-size: 18px;
        width: 24px;
        height: 24px;
        line-height: 24px;
        top: -6px;
        right: -6px;
    }

    .line-oa-icon {
        bottom: 10px;
        right: 10px;
        width: 44px;
        height: 44px;
    }

    .line-oa-icon img {
        width: 28px;
        height: 28px;
    }
}

@media (max-width: 500px) {
    .corner-banner img {
        width: 100px;
    }

    .corner-banner {
        bottom: 4px;
        right: 4px;
    }

    .close-btn {
        font-size: 14px;
        width: 18px;
        height: 18px;
        line-height: 18px;
        top: -4px;
        right: -4px;
    }

    .line-oa-icon {
        bottom: 4px;
        right: 4px;
        width: 32px;
        height: 32px;
    }

    .line-oa-icon img {
        width: 18px;
        height: 18px;
    }
}