@import url("./reset.css");

.row{
  width: 1190px;
  justify-content: space-around;
}
.headpic{
  font-size: 36px;
  font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
  line-height: 100px;
  height: 100px;
}
.headtext{
  width: 1000px;
  height: 100px;
  line-height: 50px;
  font-size: 32px;
  text-shadow: 1px 1px;
}
.content{
  width: 1000px;
  background: #eee;
  box-sizing: border-box;
}
.container{
  align-self: baseline;
  /*width: 250px;
  padding: 12px;*/
}
.block{
  width: 640px;
  word-wrap: break-word;
  box-sizing: border-box;
  border: 1px solid #00c0ff;
  border-radius: 7px;
  padding: 15px;
  align-self: baseline;
  display: flex;
  flex-wrap: wrap;
  position: relative;
}
  .block .item{
    width: 45%;
    margin: 3px;
    overflow: hidden;
  }
    .block .item img{
      width: 100%;
    }
  .block .pointer{
    position: absolute;
    --t: 3px;/*线条粗细*/
    --l: 30px;/*线条长度*/
    --g: 15px;/*线条与图片间隙*/
    --sw: 300px;/*图片尺寸*/
    --sh: 300px;/*图片尺寸*/
    --x: 100px;/**/
    --y: 0px;/**/
    width: calc(var(--sw) + 2 * var(--g));
    height: calc(var(--sh) + 2 * var(--g));
    border: var(--t) solid #f00;
    margin-left: calc(var(--g) * -1);
    margin-top: calc(var(--g) * -1);
    box-sizing: border-box;
    left: 0px;
    top: 0px;
    transform: translate(var(--x), var(--y));
    transition: 1s;
    /*background: conic-gradient(at 50px 50px, red, blue);*/
    /*background: conic-gradient(at 50px 50px, transparent 75%, blue 75% 100%) 0 0 /
    calc(100% - 50px) calc(100% - 50px);*/
    -webkit-mask: conic-gradient(at var(--l) var(--l),
      transparent 75%, blue 75% 100%) 0 0 /
      calc(100% - var(--l)) calc(100% - var(--l));
  }

.one-eight div{
  width: 12.5%;
}
.container-carousel{
  --w: 320px;
  --h: 240px;
  width: var(--w);
  height: var(--h);
  overflow: hidden;
  /*position: fixed;
  margin-left: -320px;
  margin-top: -240px;*/
  position: relative;
  background-color: #ccc;
  left: 0;
  top: 0;
  transform: translate(calc(var(--initX) * 1px), calc(var(--initY) * 1px));
}
.container-carousel .res{
  /*height: 300px;*/
  overflow: auto;
}
.carousel{
  width: var(--w);
  height: var(--h);
  display: flex;
  transition: 2s;
}
.item .item1,
.item .item2,
.item .item3,
.item .item4{
  width: var(--w);
  height: var(--h);
  background: pink;
  display: flex;
  justify-content: space-around;
}
.item-imgs{
  width: var(--w);
  height: var(--h);
  display: grid;
  grid-template-columns: repeat(3, 3fr);
  overflow: hidden;
}
.item-img{
  background: url(./img/green.jpg);
  background-size: var(--w) var(--w);
  transition: 1s;
  box-shadow: inset 0 0 0 1px #0ff;
  position: relative;
}
.item-img:nth-child(3n+1){
  left: -10px;
  background-position-x: 0;
}
.item-img:nth-child(3n+2){
  left: 0;
  background-position-x: calc(var(--w) / -3);
}
.item-img:nth-child(3n+3){
  left: 10px;
  background-position-x: calc(var(--w) * 2 / -3);
}
.item-img:nth-child(-n+9){
  top: 10px;
  background-position-y: calc(var(--h) * 2 / -3);
}
.item-img:nth-child(-n+6){
  top: 0;
  background-position-y: calc(var(--h) / -3);
}
.item-img:nth-child(-n+3){
  top: -10px;
  background-position-y: 0;
}
.item-imgs:hover .item-img{
  left: 0;
  top: 0;
  box-shadow: inset 0 0 0 0 #fff;
}
.item .item2{
  background: lightblue;
}
.item .item3{
  background: lightgreen;
}
.item div a{
  margin-top: 30px;
}
.indicator{
  position: absolute;
  bottom: 10px;
  display: flex;
  /* outline: 1px solid white; */
  left: 50%;
  transform: translateX(-50%);
}
.indicator span{
  width: 30px;
  height: 30px;
  border: 1px solid #fff;
  border-radius: 50%;
  margin: 0 3px;
}
.indicator span.active{
  background: #fff;
}

ul.menu{
  width: 190px;
  border-right: 1px dashed #333;
  box-sizing: border-box;
  overflow: hidden;
}
div.menu-title{
  font-size: 16px;
  font-weight: bold;
}
div.menu-title:hover{
  color: #000;
  background-color: #fff;
}
div.menu-title::after{
  content: '';
  display: block;
  float: right;
  width: 0px;
  height: 0px;
  border-left: 12px solid #fff;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  margin: 6px 7px;
  transition: all 1s;
}
.sub-menu{
  margin-left: 12px;
  display: none;
  transition: all 1s;
}
.sub-menu div:hover{
  background-color: #ccc;
}
.active-menu{
  background-color: #fff;
}
.active-menu .sub-menu{
  display:block;
}
.active-menu div.menu-title::after{
  border-left: 12px solid #000;
  transform: rotate(90deg);
}
.active-sub{
  background-color: #ccc;
}