* {
  margin: 0;
  padding: 0;
}
a,
input,
button,
select {
  border: 0;
  outline: none;
}
body {
  padding-top: 50px;
}
.navbar {
  margin-bottom: 0px;
}
.main {
  padding: 0;
}
.header img {
  display: inline-block;
  width: 100%;
  height: auto;
}
.title img {
  margin-top: 70px;
}
.title h3 {
  margin-top: 32px;
  margin-bottom: 34px;
}
.title hr {
  border: 0;
  color: black;
  background-color: black;
  height: 2px;
  width: 30px;
  margin: 0 auto;
  margin-bottom: 50px;
}
.title p {
  text-align: left;
  margin-top: -16px;
  text-indent: 2em;
  font-size: 14px;
  line-height: 30px;
  margin-bottom: 27px;
}
.about-content button {
  display: inline-block;
  width: 210px;
  height: 50px;
  border: solid 3px #000;
  background: none;
  border-radius: 25px;
  color: #666;
  font-size: 14px;
  text-transform: uppercase;
  margin-bottom: 107px;
}
.about-content button:hover span {
  color: #f30;
}
/* sixedge 六边形 */
.sixedge {
  width: 80px;
  height: 140px;
  margin: 0 auto;
  line-height: 140px;
  font-size: 35px;
  position: relative;
  background-color: #fff;
  border-top: solid 2px #444;
  border-bottom: solid 2px #444;
}
.sixedge:before {
  content: '';
  position: absolute;
  left: 0;
  top: -1px;
  width: 80px;
  height: 140px;
  transform: rotate(60deg);
  border-top: solid 2px #444;
  border-bottom: solid 2px #444;
}
.sixedge:after {
  content: '';
  position: absolute;
  left: 0;
  top: -1px;
  width: 80px;
  height: 140px;
  transform: rotate(-60deg);
  border-top: solid 2px #444;
  border-bottom: solid 2px #444;
}
.detail h3 {
  font-size: 12px;
  margin-top: 0px;
  margin-bottom: 40px;
}
.detail span {
  display: inline-block;
  width: 28px;
  height: 28px;
  line-height: 28px;
  border: solid 1px #444;
  border-radius: 50%;
  margin-bottom: 29px;
}
.detail p {
  line-height: 30px;
  font-size: 14px;
}
.work {
  width: 100%;
  overflow: hidden;
}
.work img {
  display: inline-block;
  width: 100%;
  height: auto;
}
.link {
  margin-bottom: 79px;
  display: block;
  justify-content: space-between;
}
.link a {
  display: inline-block;
  height: 30px;
  line-height: 30px;
  text-align: center;
  background-color: #444;
  padding: 0 15px;
  color: #fff;
}
.contacts {
  width: 100%;
  height: 600px;
  overflow: hidden;
  background: #444444 url(../img/contact.jpg) no-repeat bottom center;
  color: #fff;
}
.contacts .title h3 {
  color: #fff;
}
.contacts .title hr {
  background-color: #fff;
}
.contacts .title p {
  text-align: center;
  color: #fff;
  margin-bottom: 17px;
}
.contacts .contact {
  margin-top: 80px;
}
.contacts .contact span {
  display: inline-block;
  width: 56px;
  height: 56px;
  line-height: 56px;
  text-align: center;
  border: solid 1px #fff;
  border-radius: 50%;
}
.contacts .contact p {
  display: inline-block;
  text-align: left;
}
.contacts .contact p small {
  display: block;
  width: 130px;
}
.contacts .contact .word {
  text-align: center;
  margin-bottom: 5px;
}
#to_top {
  width: 130px;
  height: 130px;
  font: 14px/20px arial;
  text-align: center;
  background: url(../img/44.png) no-repeat center center;
  background-size: cover;
  position: fixed;
  right: 10px;
  bottom: 10px;
  cursor: pointer;
  color: #fff;
  display: none;
}
/* 超小屏幕（手机，小于 768px） */
/* 没有任何媒体查询相关的代码，因为这在 Bootstrap 中是默认的（还记得 Bootstrap 是移动设备优先的吗？） */
.link a {
  display: block;
  margin-bottom: 3px;
}
/* 小屏幕（平板，大于等于 768px） */
@media (min-width: 768px) {
  .link {
    display: flex;
  }
  .contacts .contact .word:first-of-type {
    text-align: right;
  }
  .contacts .contact .word:last-child {
    text-align: left;
  }
}
/* 中等屏幕（桌面显示器，大于等于 992px） */
/* 大屏幕（大桌面显示器，大于等于 1200px） */