body {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: #000;
    background-image: none;
}

.content1 {
    width: 70%;
    height: calc(100vh - 631px);
    flex: 1;
    display: flex;
    margin: 10px auto;
    justify-content: center;
    align-items: center;
    position: relative;

}

.ifam-box {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0px;
    left: 0px;
    right: 0px;
    margin: auto;
    z-index: 12;
}

/* Loading 样式 */
.loading-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 15;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    color: #fff;
    margin-top: 20px;
    font-size: 16px;
    font-weight: 500;
}

.footer {
    padding: 10px 0;
    margin-bottom: 0px;
}

@media (max-width:760px) {

    .content1 {
        width: 100%;
        height: calc(100vh - 201px);
        padding: 10px 0;
        margin: 10px 0;
    }

    .ifam-box {
        width: 100%;
    }

    .footer {
        margin-top: 0px !important;
    }

}