body {
    height: 1450px;
    margin: 0px;
    background-image: url("images/天空1.jpg");
    background-repeat: no-repeat;
    background-size: cover;
}

/* LOGO */
.box1 {
    text-align: left;
    position: absolute;
    top: 30px;
    left: 10px;
    user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-user-select: none;
}
.upper {
    color: rgb(255, 115, 0);
    font-weight: bolder;
    font-family: sans-serif;
    font-size: 45px;
    letter-spacing: -10px;
}
.lower {
    color: rgb(255, 183, 124);
    font-family: sans-serif;
    font-size: 45px; 
    letter-spacing: -5px;
}

/* 横向菜单栏 */
.menu {
    width: auto;
    height: 50px;
    background-color: rgb(255, 183, 124);
    margin-top: 100px;
}
ul {
    width: auto;
    list-style-type: none;
    white-space: nowrap;
    padding: 0;
}
.menu li {
    float: left;
}
.menu li#self {
    margin: 0 0 0 979px;
}
.menu li a {
    color: white;
    text-decoration-line: none;
    display: block;
    padding: 14px 40px 15px 70px;
}
.menu li a:hover {
    background-color: rgba(248, 148, 66, 0.7);
}
.menu ul li a#firstPage {
    background-image: url("icons/首页.png");
    background-repeat: no-repeat;
    background-size: 12%;
    background-position: 35px 16px;
    
}
.menu ul li a#my {
    background-image: url("icons/管理员.png");
    background-repeat: no-repeat;
    background-size: 12%;
    background-position: 35px 16px;
}

/* 操作界面 */
.box2 {
    width: auto;
    height: auto;
    margin: 0 0 0 190px;
}
.box2 table tr td {
    padding: 40px 50px 50px 0;
}
.box2 table tr td a {
    background-image: url("icons/老人2.png");
    background-repeat: no-repeat;
    padding: 100px 90px 20px 100px;
    background-position: 70px 35px;
    background-size: 40%;
    margin: 0 0 0 5px;
}
.box2 table tr td a:hover {
    background-image: url("icons/老人2light.png");
}
.box2 table tr td.last {
    padding: 40px 0 50px 0;
}
.box2 table tr td span {
    color: rgba(255, 239, 213);
    font-size: 14px;
    padding: 0;
    margin: 0 0 0 90px;
}

/* 纵向导航栏 */
.guide {
    width: 190px;
    height: 1400px;
    background-color: rgba(255, 183, 124, 0.3);
    position: absolute;
    top: 150px;
}
.guide li {
    margin: 50px 0 0 0;
}
.guide li#delete {
    margin: 60px 0;
}
.guide li a {
    text-decoration-line: none;
    color: white;
    padding: 16px 76px 20px 50px;
}
.guide li a:hover {
    background-color: rgba(248, 148, 66, 0.7);
}