@charset "UTF-8";
/* CSS Document */
/*各要素のTOPの位置*/
body {
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, "sans-serif";
  font-size: 16px;
  text-align: left;
  font-weight: normal;
  margin: 0;
  padding: 0;
  min-width: 400px;
  background: url("../2024img/background_img/body_lecture_back.jpg") fixed no-repeat center center;
  z-index: 10; }

h1 {
  font-size: 10px;
  text-align: left; }

.tops {
  position: fixed;
  top: 0;
  left: 0;
  color: #fff;
  z-index: 80000;
  box-sizing: border-box;
  width: 100%;
  height: 30px;
  background-color: rgba(0, 0, 0, 0.8);
  text-align: right; }

nav {
  position: absolute;
  width: 90%;
  height: 100px;
  top: 75px;
  left: 5%;
  z-index: 100000; }
  nav .nav1 {
    display: inline-block;
    width: 60px;
    height: 60px;
    margin-left: 0;
    transform-style: preserve-3d;
    transform: rotate3d(100, 100, 0, -45deg);
    transition: all 2s; }

.face {
  display: flex;
  width: 60px;
  height: 60px;
  position: absolute;
  justify-content: center;
  align-items: center;
  color: #fff;
  font-size: 12px; }

.home1 {
  background-color: rgba(235, 15, 18, 0.64);
  transform: translateZ(30px); }

.home2 {
  background-color: rgba(80, 172, 62, 0.53);
  transform: rotateY(180deg) translateZ(30px); }

.home3 {
  background-color: rgba(65, 195, 72, 0.56);
  transform: rotateY(90deg) translateZ(30px); }

.home4 {
  background-color: rgba(231, 217, 34, 0.5);
  transform: rotateY(-90deg) translateZ(30px); }

.home5 {
  background-color: rgba(153, 15, 162, 0.59);
  transform: rotateX(90deg) translateZ(30px); }

.home6 {
  background-color: rgba(26, 47, 96, 0.72);
  transform: rotateX(-90deg) translateZ(30px); }

.lec1 {
  background-color: rgba(61, 50, 50, 0.78);
  transform: translateZ(30px); }

.lec2 {
  background-color: rgba(195, 47, 107, 0.64);
  transform: rotateY(180deg) translateZ(30px);
  font-size: 12px; }

.lec3 {
  background-color: rgba(126, 51, 18, 0.58);
  transform: rotateY(90deg) translateZ(30px); }

.lec4 {
  background-color: rgba(83, 139, 225, 0.74);
  transform: rotateY(-90deg) translateZ(30px); }

.lec5 {
  background-color: rgba(17, 191, 42, 0.89);
  transform: rotateX(90deg) translateZ(30px); }

.lec6 {
  background-color: rgba(173, 98, 53, 0.66);
  transform: rotateX(-90deg) translateZ(30px); }

.design1 {
  background-color: rgba(99, 99, 9, 0.77);
  transform: translateZ(30px); }

.design2 {
  background-color: rgba(245, 130, 132, 0.79);
  transform: rotateY(180deg) translateZ(30px); }

.design3 {
  background-color: rgba(63, 177, 232, 0.84);
  transform: rotateY(90deg) translateZ(30px); }

.design4 {
  background-color: rgba(83, 139, 225, 0.74);
  transform: rotateY(-90deg) translateZ(30px); }

.design5 {
  background-color: rgba(136, 15, 17, 0.79);
  transform: rotateX(90deg) translateZ(30px); }

.design6 {
  background-color: rgba(173, 98, 53, 0.66);
  transform: rotateX(-90deg) translateZ(30px); }

.acs1 {
  background-color: rgba(34, 165, 228, 0.83);
  transform: translateZ(30px); }

.acs2 {
  background-color: rgba(195, 47, 107, 0.64);
  transform: rotateY(180deg) translateZ(30px);
  font-size: 12px; }

.acs3 {
  background-color: rgba(126, 51, 18, 0.58);
  transform: rotateY(90deg) translateZ(30px); }

.acs4 {
  background-color: rgba(83, 139, 225, 0.74);
  transform: rotateY(-90deg) translateZ(30px); }

.acs5 {
  background-color: rgba(154, 95, 227, 0.73);
  transform: rotateX(90deg) translateZ(30px); }

.acs6 {
  background-color: rgba(173, 98, 53, 0.66);
  transform: rotateX(-90deg) translateZ(30px); }

.acs1 {
  background-color: rgba(8, 183, 71, 0.73);
  transform: translateZ(30px); }

.acs2 {
  background-color: rgba(195, 47, 107, 0.64);
  transform: rotateY(180deg) translateZ(30px);
  font-size: 12px; }

.acs3 {
  background-color: rgba(126, 51, 18, 0.58);
  transform: rotateY(90deg) translateZ(30px); }

.acs4 {
  background-color: rgba(83, 139, 225, 0.74);
  transform: rotateY(-90deg) translateZ(30px); }

.acs5 {
  background-color: rgba(154, 95, 227, 0.73);
  transform: rotateX(90deg) translateZ(30px); }

.acs6 {
  background-color: rgba(173, 98, 53, 0.66);
  transform: rotateX(-90deg) translateZ(30px); }

.pro1 {
  background-color: rgba(39, 7, 197, 0.74);
  transform: translateZ(30px); }

.pro2 {
  background-color: rgba(195, 47, 107, 0.64);
  transform: rotateY(180deg) translateZ(30px); }

.pro3 {
  background-color: rgba(237, 230, 230, 0.91);
  transform: rotateY(90deg) translateZ(30px); }

.pro4 {
  background-color: rgba(253, 249, 249, 0.93);
  transform: rotateY(-90deg) translateZ(30px); }

.pro5 {
  background-color: rgba(154, 95, 227, 0.73);
  transform: rotateX(90deg) translateZ(30px); }

.pro6 {
  background-color: rgba(173, 98, 53, 0.66);
  transform: rotateX(-90deg) translateZ(30px); }

.cont1 {
  background-color: rgba(224, 127, 19, 0.85);
  transform: translateZ(30px); }

.cont2 {
  background-color: rgba(195, 47, 107, 0.64);
  transform: rotateY(180deg) translateZ(30px); }

.cont3 {
  background-color: rgba(126, 51, 18, 0.58);
  transform: rotateY(90deg) translateZ(30px); }

.cont4 {
  background-color: rgba(83, 139, 225, 0.74);
  transform: rotateY(-90deg) translateZ(30px); }

.cont5 {
  background-color: rgba(154, 95, 227, 0.73);
  transform: rotateX(90deg) translateZ(30px); }

.cont6 {
  background-color: rgba(173, 98, 53, 0.66);
  transform: rotateX(-90deg) translateZ(30px); }

.ho1:hover {
  transform: perspective(350px) translate3d(100px, 150px, 120px) rotate3d(1, 10, 1, -180deg); }

.le1:hover {
  transform: perspective(350px) translate3d(100px, 150px, 120px) rotate3d(1, 10, 1, -180deg); }

.de1:hover {
  transform: perspective(350px) translate3d(50px, 150px, 120px) rotate3d(1, 10, 1, -180deg); }

.ac1:hover {
  transform: perspective(350px) translate3d(-100px, 150px, 120px) rotate3d(1, 10, 1, -180deg); }

.pr1:hover {
  transform: perspective(350px) translate3d(10px, 150px, 120px) rotate3d(1, 10, 1, -180deg); }

.co1:hover {
  transform: perspective(350px) translate3d(10px, 150px, 120px) rotate3d(1, 10, 1, -180deg); }

header {
  position: absolute;
  top: 175px;
  width: 100%;
  height: 390px;
  left: 0;
  background: #fff url("../2024img/header/weblec_header.jpg") no-repeat center center;
  border-top: 2px solid #fff;
  border-bottom: 5px solid #fff; }

.sec1 {
  position: absolute;
  top: 565px;
  width: 100%;
  height: 780px;
  background: #fff url("../2024img/background_img/content2.jpg") no-repeat bottom center;
  text-align: center; }
  .sec1 h2 {
    width: 90%;
    min-width: 400px;
    font-size: 16px;
    margin: 0 auto;
    border-bottom: 2px solid #444;
    border-radius: 20%;
    text-align: center;
    padding: 3px 0;
    box-sizing: border-box;
    background-color: #ccc; }
  .sec1 .sec1_div {
    width: 100%;
    min-width: 400px;
    margin: 20px auto;
    max-width: 1100px; }
    .sec1 .sec1_div h3 {
      font-size: 16px;
      border-bottom: 1px solid #222; }
    .sec1 .sec1_div .sec1_p {
      width: 85%;
      font-size: 14px;
      text-align: left;
      padding: 10px;
      margin: 0 auto;
      box-sizing: border-box; }
  .sec1 .sec1_d1 {
    height: 450px; }

.sec2 {
  position: absolute;
  top: 1395px;
  height: 1680px;
  background: #fff url("../2024img/background_img/lecture_back_small.jpg") no-repeat center center/cover;
  width: 100%;
  min-width: 400px; }
  .sec2 h3 {
    font-size: 18px; }
  .sec2 .sec2_d {
    padding: 5px;
    font-size: 14px;
    margin: 0 auto;
    box-sizing: border-box;
    width: 100%;
    min-width: 400px;
    max-width: 700px; }
  .sec2 .sec2_div3 ul li a:link {
    color: blue; }

.sec3 {
  position: absolute;
  top: 3175px;
  height: 900px;
  width: 100%;
  min-width: 400px;
  border-top: 5px solid red;
  background: #fff; }
  .sec3 .sec3_div1 {
    width: 100%;
    margin: 0 auto;
    height: 800px;
    background: url("../2024img/background_img/LECTURE_1.png") no-repeat bottom center; }
    .sec3 .sec3_div1 h3 {
      background-color: #9A10B3;
      margin: 15px auto;
      width: 380px;
      text-align: center;
      padding: 5px;
      border-bottom: 2px solid #ccc;
      border-radius: 20px;
      color: #fff;
      box-shadow: 0 10 0 #999; }
    .sec3 .sec3_div1 h4 {
      margin: 10px auto;
      width: 390px;
      text-align: center;
      border-left: 5px solid #222;
      border-bottom: 1px dotted #999; }
    .sec3 .sec3_div1 .sec3_img {
      margin: 0 auto; }
    .sec3 .sec3_div1 p {
      width: 380px;
      margin: 5px auto; }
    .sec3 .sec3_div1 span {
      font-weight: bold; }

.sec4 {
  position: absolute;
  top: 4125px;
  height: 2300px;
  width: 100%;
  min-width: 400px;
  background-color: rgba(255, 253, 253, 0.71);
  text-align: center; }
  .sec4 h3 {
    width: 100%;
    text-align: center; }
  .sec4 .sec4_d {
    width: 400px;
    height: 500px;
    display: inline-block;
    border-bottom: 1px dotted #333;
    border-radius: 10px; }
    .sec4 .sec4_d h4 {
      width: 390px;
      border: 1px solid #999;
      font-size: 14px;
      text-align: center;
      color: #fff;
      padding: 3px;
      box-sizing: border-box;
      background-color: #245532; }
    .sec4 .sec4_d p {
      font-size: 14px;
      text-align: left;
      font-weight: bold;
      padding: 0 15px;
      line-height: 1.8em;
      box-sizing: border-box; }

footer {
  position: absolute;
  top: 6235px;
  height: 900px;
  font-size: 40px;
  width: 100%;
  min-width: 400px;
  left: 0;
  background-color: black;
  z-index: 500000;
  border-bottom: 5px solid #fff; }
  footer .foot_box {
    width: 100%;
    min-width: 400px;
    height: 400px;
    border-top: 5px solid #ccc;
    background: #000 url("../2024img/background_img/tex1.jpg");
    color: transparent;
    -webkit-background-clip: text;
    animation: mask ease 5.5s infinite;
    line-height: 1.2em;
    font-weight: bold;
    padding-left: 10px;
    box-sizing: border-box; }
    footer .foot_box .p_box {
      height: 250px;
      width: 350px;
      margin: 50px auto;
      text-align: center; }
    footer .foot_box .sp1 {
      font-size: 14px; }
    footer .foot_box .sp2 {
      font-size: 60px; }
    footer .foot_box .sp3 {
      font-size: 48px; }
    footer .foot_box .mail_box {
      position: absolute;
      top: 350px;
      width: 250px;
      left: calc(50% - 125px);
      text-align: center;
      font-size: 14px;
      margin: 0; }
  footer .site_map {
    position: absolute;
    top: 420px;
    width: 400px;
    height: 420px;
    left: calc(50% - 200px);
    padding-left: 100px;
    padding-top: 10px;
    box-sizing: border-box;
    line-height: 0.6em;
    border-top: 1px dotted #ccc;
    border-bottom: 1px dotted #ccc;
    color: #fff; }
    footer .site_map h4 {
      font-size: 14px;
      color: #fff; }
    footer .site_map h5 {
      font-size: 12px;
      color: #fff; }
    footer .site_map ul {
      font-size: 12px;
      color: #fff; }

a:link {
  color: #fff; }

a:visited {
  color: #F5F438; }

a:hover {
  color: #62EF4C; }

a:active {
  color: #7BB1E9; }

address {
  position: absolute;
  background-color: #000;
  top: 7175px;
  color: #fff;
  width: 100%;
  left: 0;
  text-align: center;
  font-size: 14px;
  min-width: 400px;
  z-index: 1000000;
  margin: 0;
  box-sizing: border-box; }

@keyframes mask {
  0% {
    background-position: 0 50%; }
  100% {
    background-position: 100% 50%; } }
@media (min-width: 800px) {
  .sec1 {
    height: 580px; }

  .sec2 {
    height: 1380px;
    background: url("../2024img/background_img/lecture_back1.jpg") no-repeat center center; }

  .sec4 {
    display: grid;
    grid-template-columns: 400px 400px;
    grid-template-rows: 60px 430px 430px;
    justify-content: space-evenly;
    height: 1300px;
    grid-row-gap: 70px; }
    .sec4 h3 {
      grid-column: 1/3;
      grid-row: 1/2; }
    .sec4 .sec4_div1 {
      grid-column: 1/2;
      grid-row: 2/3; }
    .sec4 .sec4_div2 {
      grid-column: 2/3;
      grid-row: 2/3; }
    .sec4 .sec4_div3 {
      grid-column: 1/2;
      grid-row: 3/4; }
    .sec4 .sec4_div4 {
      grid-column: 2/3;
      grid-row: 3/4; }

  footer {
    top: 5525px;
    background: url("../2024img/background_img/foot_back.jpg") no-repeat center center;
    border-bottom: 5px solid #fff; }

  address {
    top: 6445px; } }
@media (min-width: 1200px) {
  .sec4 {
    grid-template-columns: 500px 500px; }
    .sec4 .sec4_d {
      width: 500px; }
      .sec4 .sec4_d h4 {
        width: 500px; } }