body {
    font-family: 'microsoft yahei', "微软雅黑", Arial, Helvetica, sans-serif, serif;
    color: #fff;
    background-color: #333;
    font-size: 13px;
}

.mainA {
    min-height: 300px;
    padding: 30px 10px;
    background-color: #111;
    text-align: center;
}

.mainB {
    min-height: 280px;
    padding: 40px 10px;
    color: #333;
    background-color: #fff;
    /*background-image: linear-gradient(to top, #14805e 0%, #2fa781 100%);*/
    text-align: center;
}

.footer {
    min-height: 300px;
    padding: 30px 10px 10px;
    text-align: center;
}

.arr_line {
    position: relative;
}

.arr_line:after {
    top: 100%;
    border: solid transparent;
    content: " ";
    height: 0;
    width: 0;
    position: absolute;
    pointer-events: none;
    border-width: 12px;
    left: 50%;
    margin-left: -12px;
    z-index: 11;
}

.arr_A:after {
    border-color: #111 transparent transparent transparent;
}

.arr_B:after {
    border-color: #fff transparent transparent transparent;
}

h1 {
    font-size: 48px;
    color: #fff;
    font-weight: 900;
    text-transform: uppercase;
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale3d(.3, .3, .3);
    }
    10% {
        opacity: 1;
        transform: scale3d(1, 1, 1);
    }
}

.zoomIn {
    animation-name: zoomIn;
}

.t1 {
    font-size: 36px;
    font-weight: 500;
    animation-duration: 5s;
    animation-fill-mode: both;
    animation-iteration-count: infinite;
}

@keyframes flipInX {
    from {
        transform: perspective(400px) rotate3d(1, 0, 0, 90deg);
        animation-timing-function: ease-in;
        opacity: 0;
    }
    10% {
        transform: perspective(400px) rotate3d(1, 0, 0, -20deg);
        animation-timing-function: ease-in;
    }
    25% {
        transform: perspective(400px) rotate3d(1, 0, 0, 10deg);
        opacity: 1;
    }
    40% {
        transform: perspective(400px) rotate3d(1, 0, 0, -5deg);
    }
    to {
        transform: perspective(400px);
    }
}

.flipInX {
    -webkit-backface-visibility: visible !important;
    backface-visibility: visible !important;
    animation-name: flipInX;
}

.t2>span {
    display: inline-block;
    margin: 0 -4px;
    animation-duration: 5s;
    animation-fill-mode: both;
    animation-iteration-count: infinite;
}

.t2>span:nth-child(1) {
    animation-delay: 0.0s
}

.t2>span:nth-child(2) {
    animation-delay: 0.1s
}

.t2>span:nth-child(3) {
    animation-delay: 0.2s
}

.t2>span:nth-child(4) {
    animation-delay: 0.3s
}

.t2>span:nth-child(5) {
    animation-delay: 0.4s
}

.t2>span:nth-child(6) {
    animation-delay: 0.5s
}

.t2>span:nth-child(7) {
    animation-delay: 0.6s
}

.t2>span:nth-child(8) {
    animation-delay: 0.7s
}

.t2>span:nth-child(9) {
    animation-delay: 0.8s
}

.t2>span:nth-child(10) {
    animation-delay: 0.9s
}

.t2>span:nth-child(11) {
    animation-delay: 1.0s
}

.t3 {
    font-size: 18px;
    color: #faff3b;
}

.t4 {
    letter-spacing: 1px;
    color: #ccc;
}

.circle {
    display: inline-block;
    width: 130px;
    height: 130px;
    margin: 20px 5px;
    padding: 27px 0 2px;
    border: 3px solid #bebebe;
    border-radius: 80px;
    font-size: 40px;
    text-align: center;
    animation-duration: 6s;
    animation-fill-mode: both;
}

.circle:nth-child(1) {
    animation-delay: 0.0s
}

.circle:nth-child(2) {
    animation-delay: 0.1s
}

.circle:nth-child(3) {
    animation-delay: 0.2s
}

.broken .circle:nth-child(1) {
    animation-delay: 0.3s
}

.broken .circle:nth-child(3) {
    animation-delay: 0.4s
}

.circle i {
    display: block;
    font-size: 13px;
    font-style: normal;
}

.broken {
    display: inline-block;
    margin-left: 35px;
}

.dash {
    display: inline-block;
    width: 10px;
    height: 130px;
    line-height: 130px;
    vertical-align: 30px;
}

.footer {
    letter-spacing: 1px;
}

.service {
    margin-bottom: 35px;
}

.service a {
    display: inline-block;
    margin-left: 15px;
    padding: 8px 15px;
    color: #fff;
    text-decoration: none;
    background-color: transparent;
    border: 1px solid #fff;
    -webkit-transform: perspective(1px) translateZ(0);
    transform: perspective(1px) translateZ(0);
    position: relative;
    -webkit-transition-property: color;
    transition-property: color;
    -webkit-transition-duration: 0.3s;
    transition-duration: 0.3s;
}

.service a:before {
    content: "";
    position: absolute;
    z-index: -1;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #fff;
    -webkit-transform: scaleY(0);
    transform: scaleY(0);
    -webkit-transform-origin: 50% 100%;
    transform-origin: 50% 100%;
    -webkit-transition-property: transform;
    transition-property: transform;
    -webkit-transition-duration: 0.3s;
    transition-duration: 0.3s;
    -webkit-transition-timing-function: ease-out;
    transition-timing-function: ease-out;
}

.service a:hover:before,
.service a:focus:before {
    -webkit-transform: scaleY(1);
    transform: scaleY(1);
}

.service a:hover,
.service a:focus {
    text-decoration: none;
    color: #333;
}

.copyrights img {
    display: block;
    margin: 10px auto;
}

@media (min-width: 768px) {
    .container {
        width: 750px;
    }
}

@media (min-width: 992px) {
    .container {
        width: 970px;
    }
}

@media(max-width: 767px) {
    .broken {
        display: block;
        margin: 0 auto;
    }
    .circle {
        margin: 10px 1px;
    }
}

@media(min-width: 461px) and (max-width: 525px) {
    h1 {
        font-size: 34px;
    }
    .t1 {
        font-size: 26px;
    }
    .circle {
        width: 116px;
        height: 116px;
        padding: 22px 0 2px;
        border-radius: 80px;
        font-size: 36px;
        text-align: center;
    }
    .dash {
        height: 116px;
        line-height: 116px;
    }
}

@media(min-width: 320px) and (max-width: 460px) {
    .container {
        padding: 0;
    }
    h1 {
        font-size: 32px;
    }
    .t1 {
        font-size: 24px;
    }
    .t4 span {
        display: block;
    }
    .circle {
        width: 80px;
        height: 80px;
        margin: 10px 0;
        padding: 14px 0 2px;
        border-radius: 80px;
        font-size: 26px;
        text-align: center;
    }
    .dash {
        height: 80px;
        line-height: 80px;
    }
}