body {
    background-color: #FFFFFF; 
    background-image: linear-gradient(#FFFFFF, #FFFFFF);    
    color:#ffffff;
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 30px;
}

a {
    color: #ffffff;
    text-decoration: none;
    display: inline-block;
}

.wrapper > header {
    border-color: transparent;
    margin-bottom: 15px;
    border-bottom-width: 1px;
    border-bottom-style: solid;
}

#main {
    position: relative;
    max-width: 100%;
    padding: 0 1em 3em;
    background: transparent;
    border-radius: 4px;
    cursor: default;
    text-align: center;
}

.align-btn {
    display: flex;
    justify-content: center;
}

.mainButton {
    min-width: 105px;
    min-height: 30px;
    font-size: 20px;
    text-transform: uppercase;
    letter-spacing: 1.3px;
    font-weight: 900;
    color: #000000;
    background-color: #F5BB6E;
    background-image: linear-gradient(#F5BB6E, #F5BB6E);
    border: 1px solid #E8B068;
    border-radius: 5px;
    padding: 8px;
    -webkit-animation: glowing 750ms infinite;
    -moz-animation: glowing 750ms infinite;
    -o-animation: glowing 750ms infinite;
    animation: glowing 750ms infinite;
}

.wrap {
    padding: 7px;
}

/* 动画效果 */
@-webkit-keyframes glowing {
    0% { background-color: #FFC375; -webkit-box-shadow: 0 0 3px #FFC375; }
    50% { background-color: #F5BB6E; -webkit-box-shadow: 0 0 10px #F5BB6E; }
    100% { background-color: #FFC375; -webkit-box-shadow: 0 0 3px #FFC375; }
}

@-moz-keyframes glowing {
    0% { background-color: #FFC375; -moz-box-shadow: 0 0 3px #FFC375; }
    50% { background-color: #F5BB6E; -moz-box-shadow: 0 0 10px #F5BB6E; }
    100% { background-color: #FFC375; -moz-box-shadow: 0 0 3px #FFC375; }
}

@-o-keyframes glowing {
    0% { background-color: #FFC375; box-shadow: 0 0 3px #FFC375; }
    50% { background-color: #F5BB6E; box-shadow: 0 0 10px #F5BB6E; }
    100% { background-color: #FFC375; box-shadow: 0 0 3px #FFC375; }
}

@keyframes glowing {
    0% { background-color: #FFC375; box-shadow: 0 0 3px #FFC375; }
    50% { background-color: #F5BB6E; box-shadow: 0 0 10px #F5BB6E; }
    100% { background-color: #FFC375; box-shadow: 0 0 3px #FFC375; }
}

/* 响应式设计 */
@media (max-width: 420px) {
    body {
        background-image: url();
        background-attachment: fixed;
        background-position: top left;
    }
    .wrapper > header {
        border-bottom-width: 3px;
    }
}