/* 清除元素内外边距 */
body,
p,
div,
a {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 清除 链接下划线 */
a {
    text-decoration: none;
}

body {
    /* 页面整个体颜色 */
    background-color: #010001;
    /* 页面最小宽度 */
    min-width: 1200px;
}

.herder {
    width: 100%;
    height: 48px;
    /* background-color: pink; */
    /* 固定定位 */
    position: fixed;
    top: 0;
    left: 0;
    /* 固定导航栏被  第一屏的背景图片盖住了，所以加一个层级 */
    z-index: 2;

    background-color: #010001;
}

.headerContent {
    width: 1200px;
    height: 48px;
    margin: auto;
    /* background-color: purple; */
}

.headerContent img {
    float: left;
    margin-top: 10px;
}

.nav {
    float: right;
    height: 48px;
    /* 如果行高等于高度，单行文字就可以垂直居中 */
    line-height: 48px;
}

.nav a {
    color: #a4a4a4;
    margin-left: 35px;
}



.section1 {
    color: #fff;
    background-image: url(../images/section1_bg.jpg);
    background-position: center;
}

.title-box {
    position: absolute;
    width: 100%;
    /* background-color: pink; */
    top: 150px;
}

.title-box p {
    text-align: center;
    font-size: 60px;
    margin-bottom: 25px;

    /* 字间距 */
    letter-spacing: 2px;
}

.title-box a {
    display: block;
    width: 300px;
    height: 60px;
    margin: auto;
    background-image: url(../images/links.png);
}

.title-box a:hover {
    background-position: -300px 0;

}

.ball1 {
    position: absolute;
    width: 13.2%;
    top: 22.7%;
    left: 20%;
    /* 2调用动画 */
    animation: ball 4s linear infinite alternate;
}

.ball2 {
    position: absolute;
    width: 22.3%;
    top: 49.8%;
    left: 65.16%;
    animation: ball 5s linear infinite alternate;
}

/* 1创建动画 */
@keyframes ball {
    form {
        margin-top: 0;
    }

    to {
        margin-top: -25px;
    }
}

.ship {
    position: absolute;
    top: 40.18%;
    left: 63.96%;
    width: 7.2%;
    animation: ship 25s linear infinite alternate;
}

@keyframes ship {
    form {
        transform: rotate(0);
    }

    to {
        transform: rotate(-45deg);
    }
}

.section video {
    width: 100%;
    height: 100%;
}

.word-content {

    /* 隐藏文字 */
    display: none;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 18%;
}

.bigword {
    font-size: 60px;
}

.midword {
    font-size: 36px;
}

.smalword {
    font-size: 16px;
    margin-top: 12px;
}

.section {
    color: #fff;
}

.line {
    width: 28px;
    height: 3px;
    background-color: #5e5e5e;
    margin-top: 20px;
    margin-bottom: 20px;
}

.word-content a {
    width: 200px;
    height: 48px;
    margin-top: 50px;
    background-image: url(../images/link2.png);
    display: block;
}

.word-content a:hover {
    background-position: 200px 0;
}


.footer {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 120px;
    background: color #131415;
    text-align: center;
    padding-top: 38px;
    color: #4a4a4a;
    line-height: 22px;
    font-size: 12px;
}

.footer img {
    vertical-align: middle;
}


/*  修改小圆点  半透明白色 */
#fp-nav ul li a.active span {
    background: rgba(255, 255, 255, 0.8);
}