* {
            padding: 0;
            margin: 0;
            transition: all 0.5s;
            user-select: none;
        }
        a {
            text-decoration: none;
            color: #444;
            display: inline-block;
        }
        li {
            list-style: none;
        }
        .mods-end {
            height: 1px;
            background-color: #eee;
            margin: 20px 0;
        }
        .box-size {
            max-width: 1280px;
            margin: 0 auto;
        }
        html,body {
            min-height: 460px;
            min-width: 280px;
            background-color: #f0f0f0;
            height: 100%;
            background: url(../image/index_background.png);
            -webkit-tap-highlight-color: transparent;
            scroll-behavior: smooth;
        }
        .beian {
            width: 280px;
            color: #fff;
            position: absolute;
            font-size: 12px;
            bottom: 30px;
            left: 50%;
            margin-left: -140px;
            text-align: center;
            user-select: text;
        }
        .nav-box {
            height: 100%;
        }
        .nav-info {
            height: calc(100% - 100px);
            position: relative;
            box-shadow:0 3px 3px 0 rgba(53, 116, 174, 0.6);
            background: url(../image/nav_background.jpg) center no-repeat;
            background-size: cover;
            overflow: hidden;
            background-color: #3333CC;
        }
        .info-image {
            position: absolute;
            left: 50%;
        }
        .info-title {
            width: 100%;
            text-align: center;
            position: absolute;
            color: #fff;
        }
        .info-say {
            width: 100%;
            text-align: center;
            position: absolute;
            color: #fff;
            font-weight: normal;
        }
        .occlusion {
            position: absolute;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.4);
        }
        .nav-item-boxs {
            text-align: center;
        }
        .nav-item-box {
            margin-top: 28px;
            display: inline-block;
            background: #fff;
            box-shadow: 0 0 5px 0 #ccc;
            border-radius: 10px;
            overflow: hidden;
        }
        .nav-item {
            margin: 0 -3px;
            line-height: 38px;
        }
        .nav-item:hover {
            background: #e5e5e5;
        }
        .skill-box,.my-info,.record-box,.site-box,.course-list {
            padding: 30px;
            box-sizing: border-box;
        }
        .mods-title {
            font-size: 20px;
            font-weight: normal;
            font-family:'Courier New', Courier, monospace;
        }
        .skill-list {
            display: flex;
            margin-bottom: 40px;
        }
        .skill-list .item {
            display: inline-block;
            margin-top: 20px;
            display: flex;
            margin-left: 20px;
            margin-right: 20px;
        }
        .skill-list .item .name {
            color: rgb(37, 79, 142);
            font-weight: bold;
        }
        .skill-list .item .rate-box {
            display: inline-block;
            height: 26px;
            background: #f0f0f0;
            width: 100%;
            margin-left: 10px;
            overflow: hidden;
            border-radius: 13px;
        }
        .skill-box .item .rate {
            height: 100%;
            background: rgb(37, 79, 142);
        }
        .skill-box .item:hover .rate {
            background: rgb(198, 101, 22);
        }
        .skill-box .item:hover .name {
            color: rgb(198, 101, 22);
        }
        .main-box {
            background-color: #fff;
        }
        .my-info-box {
            padding: 20px;
            box-sizing: border-box;
        }
        .my-info-box .item {
            color: #000;
        }
        .my-info-box .item span {
            color: #888;
            user-select: text;
        }
        .record-list,.site-list {
            display: flex;
            margin-bottom: 40px;
            flex-direction: row;
            flex-wrap: wrap;
        }
        .site-list .item {
            position: relative;
        }
        @keyframes spin  {
            0%{-webkit-transform:rotate(0deg);}
            25%{-webkit-transform:rotate(5deg);}
            50%{-webkit-transform:rotate(0deg);}
            75%{-webkit-transform:rotate(-5deg);}
            100%{-webkit-transform:rotate(0deg);}
        }
        .record-list .item:hover img {
            animation: spin 2s linear infinite;
        }
        .site-list .item {
            background-color: #ccc;
            border-radius: 10px;
            text-align: center;
            overflow: hidden;
        }
        .site-list .item .title {
            color: #fff;
            margin-top: 10px;
            margin-bottom: 12px;
            font-size: 14px;
            font-weight: bold;
        }
        .site-list .item img {
            width: 100%;
        }
        .site-list .item .click {
            position: absolute;
            width: 100%;
            height: 100%;
            z-index: 1;
            display: block;
        }
        .site-list .click-cover {
            position: absolute;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
        }
        .site-list .click-tip {
            width: 100%;
            line-height: 60px;
            text-align: center;
            color: #fff;
            font-weight: bold;
            font-size: 22px;
            position: absolute;
            top: 50%;
            margin-top: -30px;
        }
        .site-list .item:hover .click-box {
            opacity: 1;
        }
        .click-box {
            opacity: 0;
        }
        .course-box {
            margin-top: 20px;
            display: flex;
            flex-wrap: wrap;
            flex-direction: row;
            margin-bottom: 40px;
        }
        .course-box .item {
            box-sizing: border-box;
            border: #ddd solid 1px;
            margin: 5px 10px;
            border-radius: 10px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .course-box .item:hover {
            background: #f4f4f4;
        }
        .course-box .item .title {
            color: #666;
            font-size: 16px;
            font-family: 'Courier New', Courier, monospace;
            margin: 10px;
        }
        .course-box a {
            display: block;
            height: 100%;
        }
        .bottom {
            margin-top: 50px;
            height: 42px;
            line-height: 42px;
            font-size: 13px;
            color: #fff;
            background: #333;
            text-align: center;
        }


        

        @media(min-width: 720px) {
            /* iPad 电脑样式 */
            .nav-info {
                border-radius: 0 0 100% 100% / 0 0 12% 12%;
            }
            .info-image {
                width: 120px;
                height: 120px;
                border-radius: 78px;
                border: 18px solid rgba(255, 255, 255, 0.3);
                background: rgba(255, 255, 255, 0.3);
                top: 70px;
                margin-left: -78px;
            }
            .info-title {
                font-size: 24px;
                top: 240px;
            }
            .info-say {
                font-size: 14px;
                top: 280px;
            }
            .nav-item {
                padding: 0 26px;
                font-size: 14px;
            }
            .skill-list .item .name {
                width: 120px;
                font-size: 18px;
                height: 26px;
                line-height: 26px;
            }
            .skill-list .item {
                width: calc(33% - 40px);
            }
            .skill-list {
                flex-direction: row;
                flex-wrap: wrap;
            }
            .my-info-box .item {
                font-size: 16px;
                line-height: 36px;
            }
            .record-list .item {
                width: calc(33% - 30px);
                border-radius: 10px;
                margin-top: 30px;
                margin-left: 15px;
                margin-right: 15px;
            }
            .record-list .item img {
                width: 100%;
                border-radius: 10px;
            }
            .site-list .item {
                width: calc(50% - 30px);
                margin-top: 30px;
                margin-left: 15px;
                margin-right: 15px;
            }
            .site-list .item img {
                border-radius: 10px 10px 0 0;
                height: 300px;
                background: #ddd;
            }
            .course-box .item {
                width: calc(33% - 20px);
            }
        }

        @media(max-width: 720px) {
            /* 手机样式 */
            .nav-info {
                border-radius: 0 0 100% 100% / 0 0 10% 10%;
            }
            .info-image {
                width: 100px;
                height: 100px;
                border-radius: 65px;
                border: 15px solid rgba(255, 255, 255, 0.3);
                top: 70px;
                margin-left: -65px;
            }
            .info-title {
                font-size: 23px;
                top: 220px;
            }
            .info-say {
                font-size: 13px;
                top: 260px;
            }
            .nav-item {
                padding: 0 15px;
                font-size: 13px;
            }
            .skill-list {
                flex-direction: column;
            }
            .record-list .item img {
                width: 100%;
                border-radius: 5px;
            }
            .skill-list .item .name {
                width: 120px;
                font-size: 17px;
                height: 26px;
                line-height: 26px;
            }
            .my-info-box .item {
                font-size: 14px;
                line-height: 34px;
            }
            .record-list .item {
                width: calc(50% - 20px);
                border-radius: 8px;
                margin-top: 20px;
                margin-left: 10px;
                margin-right: 10px;
            }
            .site-list .item img {
                border-radius: 8px 8px 0 0;
                height: 220px;
            }
            .site-list .item {
                width: calc(100% - 30px);
                margin-top: 30px;
                margin-left: 15px;
                margin-right: 15px;
            }
            .course-box .item {
                width: calc(50% - 20px);
            }
        }