/* ------------------------------------------
 * IT书包
 * 网址：www.itshubao.com
 * 整理：yinq<3331653644@qq.com> 
 -------------------------------------------- */
html, body {
  padding: 0px;
  margin: 0px;
  background: #222;
  font-family: 'Microsoft YaHei', sans-serif;
  font-weight: 600;
  color: #FFF;
}

body * {
  box-sizing: border-box;
  padding: none;
  margin: none;
}

.nav {
  height: 50px;
  max-width: 800px;
  background: #333;
  margin: 40px auto;
  box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.25);
  display: flex;
}
.nav #toggle {
  display: none;
  position: absolute;
}
.nav .icon {
  min-width: 50px;
  transition: all 0.5s;
}
.nav .changable {
  width: 100%;
  height: 100%;
  position: relative;
}
.nav .changable .links {
  display: flex;
  width: 100%;
  max-width: 1000px;
}
.nav .changable .links .link {
  opacity: 1;
  flex: 1;
  text-align: center;
  line-height: 50px;
  display: flex;
  transition: all 0.25s;
}
.nav .changable .links .link * {
  margin: 0px auto;
}
.nav .changable .links .link:nth-of-type(1) {
  transition-delay: 0.3s;
}
.nav .changable .links .link:nth-of-type(2) {
  transition-delay: 0.35s;
}
.nav .changable .links .link:nth-of-type(3) {
  transition-delay: 0.4s;
}
.nav .changable .links .link:nth-of-type(4) {
  transition-delay: 0.45s;
}
.nav .changable .links .link:nth-of-type(5) {
  transition-delay: 0.5s;
}
.nav .changable .links .link:nth-of-type(6) {
  transition-delay: 0.55s;
}
.nav .changable .search {
  position: absolute;
  width: 100%;
  height: 100%;
  display: none;
  top: 0px;
  left: 0px;
  display: flex;
  opacity: 0;
  pointer-events: none;
  background: #333;
  transition: 0.4s;
  transition-delay: 0s;
}
.nav .changable .search input {
  flex: 1;
  background: #333;
  height: 100%;
  border: none;
  outline: none;
  color: white;
  padding: 0px;
  font-size: 16px;
}
.nav .changable .search .quicklinks {
  position: absolute;
  top: 100%;
  left: 0px;
  background: #FFF;
  width: 100%;
  min-height: 40px;
  padding: 20px;
}
.nav .changable .search .quicklinks label {
  color: rgba(0, 0, 0, 0.5);
  font-size: 12px;
}
.nav .changable .search .quicklinks .link {
  opacity: 0;
  color: rgba(0, 0, 0, 0.7);
  transform: translateX(150px);
  transition: all 0.25s;
  margin: 12px;
}
.nav .changable .search .quicklinks .link:nth-of-type(1) {
  transition-delay: 0.4s;
}
.nav .changable .search .quicklinks .link:nth-of-type(2) {
  transition-delay: 0.7s;
}
.nav .changable .search .quicklinks .link:nth-of-type(3) {
  transition-delay: 1s;
}
.nav .changable .search .quicklinks .link:nth-of-type(4) {
  transition-delay: 1.3s;
}
.nav .changable .search .quicklinks .link:nth-of-type(5) {
  transition-delay: 1.6s;
}
.nav .changable .search .quicklinks .link:nth-of-type(6) {
  transition-delay: 1.9s;
}

.nav #toggle {
  position: absolute;
  display: none;
}
.nav #toggle:checked ~ .changable .links .link {
  opacity: 0;
}
.nav #toggle:checked ~ .changable .links .link:nth-of-type(1) {
  transition-delay: 0.3s;
}
.nav #toggle:checked ~ .changable .links .link:nth-of-type(2) {
  transition-delay: 0.15s;
}
.nav #toggle:checked ~ .changable .links .link:nth-of-type(3) {
  transition-delay: 0.1s;
}
.nav #toggle:checked ~ .changable .links .link:nth-of-type(4) {
  transition-delay: 0.075s;
}
.nav #toggle:checked ~ .changable .links .link:nth-of-type(5) {
  transition-delay: 0.06s;
}
.nav #toggle:checked ~ .changable .links .link:nth-of-type(6) {
  transition-delay: 0.05s;
}
.nav #toggle:checked ~ .changable .search {
  opacity: 1;
  pointer-events: initial;
  transition-delay: 0.5s;
  transform: translateX(0px);
}
.nav #toggle:checked ~ .changable .search .quicklinks .link {
  transform: translateX(0px);
  opacity: 1;
}
.nav #toggle:checked ~ .shopicon:before, .nav #toggle:checked ~ .shopicon:after {
  border: none;
  border-radius: 0px;
  background: transparent;
  width: 20px;
  height: 20px;
  top: 22px;
}
.nav #toggle:checked ~ .shopicon:after {
  border-left: 2px solid white;
  transform: rotateZ(45deg);
  left: 21px;
}
.nav #toggle:checked ~ .shopicon:before {
  border-right: 2px solid white;
  transform: rotateZ(-45deg);
  left: 7px;
}

/* Some simple Icon I made! */
.searchicon {
  width: 50px;
  height: 50px;
  position: relative;
  display: inline-block;
}
.searchicon:after, .searchicon:before {
  content: '';
  border: 2px solid white;
  position: absolute;
  background: #333;
  width: 10px;
  height: 30px;
}
.searchicon:after {
  width: 16px;
  height: 16px;
  border-radius: 100%;
  left: 14px;
  top: 14px;
}
.searchicon:before {
  width: 4px;
  height: 20px;
  transform: rotateZ(45deg);
  top: 17px;
  left: 15px;
}

.appicon {
  display: inline-block;
  width: 50px;
  height: 50px;
  position: relative;
}
.appicon:before, .appicon:after {
  content: '';
  width: 25px;
  height: 25px;
  border: 2px solid white;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translateX(-50%) translateY(-50%);
  border-radius: 50%;
  background: #333;
}
.appicon:after {
  left: 60%;
  top: 38%;
  width: 10px;
  height: 10px;
  background: #333;
}

.shopicon {
  position: relative;
  display: inline-block;
  height: 50px;
  width: 50px;
  text-align: center;
  transition: all 0.2s;
}
.shopicon:hover {
  cursor: pointer;
}
.shopicon:before {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  top: 10px;
  left: 18px;
  border: 2px solid white;
  border-radius: 100%;
  transition: all 0.2s;
}
.shopicon:after {
  content: '';
  position: absolute;
  transition: all 0.2s;
  width: 20px;
  height: 20px;
  border: 2px solid white;
  border-radius: 3px;
  background: #333;
  top: 16px;
  left: 14px;
}