.iyuu-wechat-icon {
    display: inline-block;
    width: 24px;
    height: 24px;
    background-color: currentColor;
    mask-image: url('/pic/misc/wechat.svg');
    mask-size: contain;
    mask-repeat: no-repeat;
    mask-position: center;
    vertical-align: middle;
}

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

.iyuu-modal {
    background: white;
    padding: 20px;
    border-radius: 4px;
    position: relative;
    min-width: 300px;
    max-width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.iyuu-modal-close {
    position: absolute;
    right: 10px;
    top: 10px;
    cursor: pointer;
    font-size: 20px;
    color: #999;
    border: none;
    background: none;
    padding: 5px;
}

.iyuu-modal-title {
    margin-top: 0;
    margin-bottom: 15px;
    padding-right: 20px;
}

.iyuu-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #9e9e9e;
    border-top: 4px solid transparent;
    border-radius: 50%;
    display: inline-block;
    animation: iyuu-spin 1s linear infinite;
}

@keyframes iyuu-spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}