/* 全局重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    width: 100%;
    height: 98%;
    font-family: Arial, sans-serif;
}

/* 通用链接样式 */
a {
    text-decoration: none;
    color: #2A17FF;
}

/* 登陆框样式 */
.card_yuan {
    position: relative;
    top: 0;
    left: 0;
    transform: translate(-150%, -50%);
    width: 200px;
    height: 120px;
    background-color: #FFF;
    border-radius: 5%;
    z-index: 1;
    animation: float 5s ease-in-out infinite;
}

input[type="text"], 
input[type="password"] {
    position: relative;
    top: 5%; 
    left: 30%;
    width: 60%;
    margin: 10px;
    border-radius: 5px;
    border: none;
    transform: translate(-50%, -80px);
    font-size: 0.9rem;
    color: #333;
}

input:hover {
    box-shadow: 0px 0px 12px #FFA2C5;
}

#dddl {
    position: relative;
    top: 0; 
    left: 50%;
    width: 40%;
    text-align: center;
    padding: 5px;
    border-radius: 5px;
    border: none;
    transform: translate(-50%, -70px);
    background: rgba(3, 169, 244, 0.5);
    color: #fff;
    font-size: 1.2rem;
    cursor: pointer;
}

button:hover {
    background: rgba(51, 169, 244, 0.5);
}

/* 弹窗按钮样式 */
.alertCancelDiv, 
.alertSubmitDiv {
    width: 25%;
    height: 20%;
    background-color: lightslategrey;
    border-radius: 5%;
    font-weight: 100;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 0;
}

.alertCancelDiv {
    float: left;
    margin-left: 15%;
}

.alertSubmitDiv {
    float: right;
    margin-right: 15%;
}

.alertCancelDiv1 {
    float: left;
    width: 15%;
    height: 15%;
    background-color: #FF0000;
    border-radius: 5%;
    font-weight: 100;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    top: -60%;
    left: 40%;
}

.alertCancelDiv:hover,
.alertSubmitDiv:hover,
.alertCancelDiv1:hover {
    box-shadow: 0px 0px 12px #00BCC5;
}

/* 内容区域样式 */
#d1, #d3, #d4 {
    width: 100%;
    font-size: 18px;
}

#d1 {
    display: none;
}

#d3 {
    font-size: 20px;
}

/* 导航菜单样式 */
.box {
    width: 100%;
    margin: 0 auto;
    position: absolute;
    left: 1px;
    bottom: 10px;
    text-align: center;
}

ul {
    list-style: none;
    box-shadow: 0px 0px 12px #006BFF;
    text-align: center;
}

.box .item {
    float: left;
    width: 32.6%;
    height: 35px;
    text-align: center;
    border: 1px solid #fff;
    background: #A6A6A6;
    color: #fff;
    line-height: 35px;
}

.box .item:hover {
    background: lightblue;
    color: #000;
    box-shadow: 0px 0px 18px rgb(110, 40, 100);
}

.box .item ul {
    display: none;
    background: white;
    color: black;
    position: relative;
    top: -240px;
}

.box .item:hover ul {
    display: block;
    box-shadow: 0px 0px 18px rgb(110, 40, 100);
    width: 100%;
    height: 200px;
    background-color: #55585a;
}

.item li:hover {
    color: aqua;
    cursor: pointer;
    width: 100%;
    height: 40px;
    box-shadow: 0px 0px 18px rgb(110, 40, 100);
}

li a {
    display: block;
    width: 100%;
    height: 40px;
    background-color: #55585a;
    font-size: 14px;
    color: #fff;
    text-decoration: none;
    padding-left: 0;
    line-height: 40px;
}

li a:hover {
    background-color: #ff6700;
}

/* iframe样式 */
#if1 {
    width: 100%; 
    height: 550px; 
    overflow: hidden; 
}

/* 弹窗背景样式 */
.alertBelowDiv,
.alertBelowDiva {
    width: 100%;
    height: 100%;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.alertBelowDiv {
    background-color: rgba(100, 100, 100, 0.8);
}

.alertBelowDiva {
    background-color: rgba(255, 255, 255, 0.1);
}

/* 弹窗内容样式 */
.alertContentDiv,
.alertContentDiva {
    background-color: #fff;
    border-radius: 1%;
    box-shadow: 0px 0px 12px #2EC6FF;
}

.alertContentDiv {
    width: 80%;
    height: 180px;
}

.alertContentDiva {
    position: absolute;
    z-index: 10;
    width: 200px;
    height: 60px;
    border: 1px solid #D9D9D9;
    padding: 0;
    top: 50%;
    margin-left: 0;
    margin-top: 15px;
    color: white;
    background: #242424;
}

/* 弹窗文字样式 */
.alertTextDiv,
.alertTextDiva {
    text-align: center;
}

.alertTextDiv {
    width: 100%;
    height: 80px;
    margin: 20px auto;
    font-size: 20px;
    font-weight: 100;
}

.alertTextDiva {
    line-height: 60px;
    font-size: 16px;
}