body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
form,
fieldset,
input,
textarea,
p,
blockquote,
th,
td {
    margin: 0;
    padding: 0;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

fieldset,
img {
    border: 0
}

address,
caption,
cite,
code,
dfn,
em,
strong,
th,
var {
    font-style: normal;
    font-weight: normal
}

ol,
ul {
    list-style: none
}

caption,
th {
    text-align: left
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-size: 100%;
    font-weight: normal
}

q:before,
q:after {
    content: ''
}

abbr,
acronym {
    border: 0
}




* {
    padding: 0px;
    margin: 0px;
    font-family: Arial, Verdana, Tahoma, "微软雅黑", Helvetica, sans-serif;
    /* line-height: 100%; */
}

html {
    width: 100%;
    height: 100%;
}

body {
    width: 100%;
    height: 100%;
    font-size: 14px;

    color: #000000;
    background-color: #ffffff;
}

table {
    border-collapse: collapse;
}

td {
    padding: 3px;
}

img {
    border: none;
}

input {
    padding: 1px;
    vertical-align: middle;
    line-height: normal;
}

.main-box {
    margin-right: auto;
    margin-left: auto;
    width: 960px;
    clear: both;
    zoom: 1;
    overflow: hidden;
    background-color: #CCCCCC;
}

.text-overflow-hidden {
    white-space: nowrap;
    word-spacing: normal;
    letter-spacing: normal;
    overflow: hidden;
}

.box-align-center {
    margin-right: auto;
    margin-left: auto;
}

/*css定义超链接四个状态也有顺序的。*/
a{
    color: black;
}
a:link,
a:visited {
    text-decoration: none;
    color: black;
}

a:hover,
a:active {
    text-decoration: none;
    color: #1F376D;
    border: none;
}



.footer-main{
    width: 100%;
    height: 110px;
    background-color: rgb(247,247,247);
    padding: 10px 0;
}
.footer-content{
    width: 50%;
    height: 100%;
    margin: 0 auto;
    display: flex;
}
.footer-first{
    width: 50%;
}
.footer-second{
    width: 50%;
    display: flex;
}
.footer-content h1{
    font-size: 15px;
    height: 50%;
    line-height: 55px;
    font-weight: 600;
}
.footer-second img{
    margin-top: 40px;
    width: 32px;
    height: 32px;
}
.footer-second div{
    padding-top: 37px;
    padding-left: 40px;
    line-height: 20px;
    font-weight: 100;
    flex-grow: 1;
    font-size: 15px;
    font-family: brandon-grot-w01-light,sans-serif;
}

.main{
    width: 100%;
    height: 100%;
    background: white;
}
.logo-content{
    position: static;
    display: grid;
    height: auto;
    width: 100%;
    min-height: auto;
    grid-template-rows: 1fr;
    grid-template-columns: 100%;
    position: fixed;
    z-index: 999;
    width: 100%;
    height: 84px;
    background: white;
    box-shadow: 0 0 5px rgb(0 0 0 / 70%);
}
.nav-main{
    width: 100%;
    height: 84px;
    /* background: white;
    box-shadow: 0 0 5px rgb(0 0 0 / 70%); */
}
.logo-img{
    position: relative;
    margin: 1px 0px 1px calc((100% - 998px) * 0.5);
    left: 0px;
    grid-area: 1 / 1 / 2 / 2;
    justify-self: start;
}
.logo-img img{
    width: 75px;
}
.nav-list{
    width: 625px;
    height: 45px;
    visibility: inherit;
    overflow-x: visible;
    position: relative;
    margin: 33px 0px 6px calc((100% - 980px) * 0.5);
    left: 355px;
    grid-area: 1 / 1 / 2 / 2;
    justify-self: start;
}
.nav-list .list-ul{
    display: flex;
    width: calc(100% - 0px);
    height: calc(100% - 0px);
    white-space: nowrap;
    overflow: visible;
    text-align: center;
}
.nav-list ul li{
    flex-grow: 1;
    height: 45px;
    line-height: 45px;
    font-size: 13px;
}
.products-li:hover .products{
    display: block;
}
.parameters-li:hover .parameters{
    display: block;
}
.applications-li:hover .applications{
    display: block;
}
.products{
    width: auto;
    padding: 7px 0px; 
    position: absolute;
    display: none;
    
    text-align: left;
    background: white;
    box-shadow: 0px 9px 15px 0px rgba(0,0,0,0.1);
}
.products li{
    padding: 0 10px;
}
.products .title{
    font-size: 15px;
    font-weight: 600;
    margin: 20px 10px;
    height: 17px;
    line-height: 17px;
    /* padding: 0; */
    border-left: 3px solid #0d5398;
}

.parameters{
    width: auto;
    padding: 7px 0px;
    position: absolute;
    display: none;
}
.parameters li{
    background: white;
    padding: 0 10px;
}
.applications{
    width: auto;
    padding: 7px 0px;
    position: absolute;
    display: none;
}
.applications li{
    background: white;
    padding: 0 10px;
}

.fixed-right {
  position: fixed;
  right: 20px;
  bottom: 20px;
  /* transform: translateY(-50%); */
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.9);
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
  padding: 10px;
}
.fixed-right .icon {
  margin: 10px 0;
  position: relative;
}
.fixed-right .icon img {
  width: 40px;
  height: 40px;
  cursor: pointer;
  transition: transform 0.3s;
}
.fixed-right .icon img:hover {
  transform: scale(1.1);
}
.fixed-right .icon .tooltip { 
  display: none;
  position: absolute;
  right: 50px;
  top: 50%;
  transform: translateY(-50%);
  background-color: white;
  border: 1px solid #ccc;
  padding: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  border-radius: 5px;
  font-size: 20px;
}
.fixed-right .icon .tooltip img {
  width: 200px;
  height: auto;
}
.fixed-right .icon:hover .tooltip {
  display: block;
}