@charset "utf-8";

/* * { outline: 1px solid red; } */

/* トップページ */


/* 前提設定 */

body{
    font-family: "Helvetica Neue", "Helvetica", "Hiragino Sans", "Arial", "Yu Gothic", "Meiryo","sans-serif"; 
    font-size: 1rem;
    line-height: 2;
    color: #333;
    background-color: #FFFFFF;
}


.border-line{
    background-color: rgba(21, 89, 179, 0.945);
    height: 1px;
    width: auto;
    margin: 20px 0;
}

.sentence {
    margin-left: 20%;
    margin-right: 20%;
}

.box {
    padding: 25px;
    text-align: center;
    border-radius: 30px;
    background-color: antiquewhite;
    color: #333;
    margin: -10px auto;
}

.marker-green {
  background-color: transparent;
  
  background-image: linear-gradient(
    transparent 60%, 
    #00ff9d 60%     
  ); 
  background-repeat: no-repeat;
  background-position: 0 90%; 
  
  font-weight: bold;
}

.marker-yelow {
  background-color: transparent;
  
  background-image: linear-gradient(
    transparent 60%,
    #ffff00 60%     
  ); 
  background-repeat: no-repeat;
  background-position: 0 90%; 
  font-weight: bold;
} 

.word-paint {
    color: #769ca3;

    border-bottom: 1px solid #769ca3;
    /* width: 60%; */
    box-decoration-break: clone;
    padding-bottom: 20px;
}



/* ヘッダー */

.header{
    background-color: #d5f7ef;
    width: 100%;
    height: 90px;
    border-bottom: 2px solid #0082aa;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.logo-image {
    width: 150px;
}

.dropdown {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    gap: 30px;
    margin: 0 120px 50px 0;
}



.dropdown-menu {
  position: absolute;
  top: 100%;
  box-sizing: border-box;
  opacity: 0;
  visibility: hidden;
  max-height: 0;
  transform: translateY(-20px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s 0.3s, max-height 0.3s ease;
  background-color: white; 
  min-width: 180px;
  z-index: 100;
  padding: 0;
  overflow: hidden;
  border: 2px solid #cfcfcfe3;
}

.dropdown-1 {
    align-items: center;
}

.dropdown-1:hover .dropdown-menu{
  opacity: 1; 
  box-sizing: border-box;
  visibility: visible;
  max-height: 600px;
  transform: translateY(-10px); 
  pointer-events: auto;
  transition-delay: 0s;
}

/* .dropdown li:last-child {
  border-bottom: none;
} */

.dropdown-menu a{
  display: block;
  display: flex;
  padding: 10px 15px;
  text-decoration: none;
  color: #333;
  font-weight: bold;
  transition: color 0.3s;
}

.dropdown a:hover {
    color: #00aacc;
}


.jump-map:hover {
    color: #0082aa;
}


/* タイトル */

.opening-curtain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: white;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: curtainRise 1s ease-in-out 3s forwards;
}

.opening-logo {
    width: 150px;
    opacity: 0;
    animation: logoAction 2.5s ease-in-out forwards;
}

@keyframes logoAction {
    0%{
        opacity: 0;
        transform: translateY(0);
    }
    40%{
        opacity: 1;
        transform: translateY(0);
    }
    60%{
        transform: translateY(30px);
    }
    80%{
        transform: translateY(0);
    }
    100%{
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes curtainRise {
    0%{
        transform: translateY(0);
    }
    100%{
        transform: translateY(-100%);
        visibility: hidden;
    }
}


.title-logo {
    font-size: 120px;
    color: #333;
    text-align: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0; 
    transition: opacity 1.5s ease-in; 
    box-sizing: border-box;
}

.title-logo.show {
  opacity: 1;;
}


@media (max-width: 500px) {

.sentence {
    margin-right: 10%;
    margin-left: 10%;
}


.footer-nav {
    display: block;
}

.footer-home {
    display: block;
}
}


/* サイト説明 */

.site-explane{
    margin-right: 20%;
    margin-left: 20%;
    text-align: center;
    box-sizing: border-box;
}


.site-explane p {
    text-align: left;
}

.footer {
    margin-top: 120px;
    background-color: #333;
    width: 100%;
    height: 60px;
    display: flex;
    justify-content: right;
    align-items: center;
}

.footer a {
    margin-right: 30px;
    color: #ccc;
    text-decoration: none;
    font-size: 22px;
    font-weight: bold;
    transition: color 0.3s;
}

.footer a:hover {
    color: #00aacc;
}

  /* AIの概要 */


.AI-headline{
    font-size: 50px;
    height: 300px;
    color: #FFFFFF;
    text-align: center;
    margin: -67px 0 100px;
    background-image: url('../images/pexels-ron-lach-9783812.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}


.About-AI-right {
    text-align: right;
    margin-bottom: -30px;
}



.About-AI h2 {
    text-align: left;
    margin-left: -25px;
}

.AI-definition{
    margin: 30px 60px 0 60px;
}



.table,th,td{
    border-right: 2px solid #cfcfcfe3;
    border-left: 2px solid #cfcfcfe3;
    border-collapse: collapse;
    border-radius: 30px;
}

.table,td {
    border-bottom: 2px solid #cfcfcfe3;;
}


.table-headline{
    /* height: 350px; */
    width: 100%;
    align-items: center;
    color: white;
}

.th-1 {
    background-color: #c3e6a1;
}

.th-2 {
    background-color: #8fc2cc;
}

.th-3 {
    background-color: bisque;
}

.th-4 {
    background-color: #dbd96e;
}

.table-data{
    height: 150px;
    width: 100%;
    align-items: center;
    padding: 8px;
    background-color: white;
}

.table-data-important{
    color: red;
}

.table-guide-data {
    height: 80px;
}



/* .AI-history{
    margin: 0 60px;
} */

.AI-history-headline{
    margin-top: 300px;
}



/* 基礎的な技術 */


.AI-nl-1,h1{
    text-align: left;
    margin-left: 20px;
}

.circle-point{
    list-style-type: circle;
}

.disc-point{
    list-style-type: disc;
}

.detail{
    color: blue;
    transition: color 0.2s ease;
}

.detail:hover{
    color: blueviolet;
}

.alphabet-point{
    list-style-type: upper-alpha;
}



.used-table{
    color: #333;
    width: 500px;
    margin: 20px;
}

.used-table-headline{
    background-color: red;
}

.used-table-data{
    background-color: tomato;
    padding: 8px;
}

.study-table2{
    color: #333;
    width: 640px;
    margin: 20px;
}

.study-table2-headline{
    background-color:green;
    color: azure;
}

.study-table2-data{
    background-color: palegreen;
    padding: 8px;
}


.study-table3{
    color: #333;
    width: 640px;
    margin: 20px;
}

.study-table3-headline{
    background-color:lightslategray;
    color:azure;
}

.study-table3-data{
    background-color: whitesmoke;
    padding: 8px;
}

/* 機械学習の基本・種類 */

.AI-mechanism-h1 {
    background-image: url(../../assets/images/32944960_l.jpg);
    font-size: 50px;
    height: 300px;
    color: #FFFFFF;
    text-align: center;
    margin: -67px 0 100px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.AI-mechanism-image {
    height: 400px;
    width: auto;
}


.AI-mechanism-image-div {
    display: flex;
}

.AI-mechanism-image-1 {
    width: auto;
    height: 350px;
    margin-top: 80px;
    margin-left: 30px;
}

.AI-mechanism-image-2 {
    width: auto;
    height: 450px;
    margin-top: 80px;
}



/* ディープラーニング */

.AI-mechanism-h2 {
    background-image: url(../../assets/images/3761985_s.jpg);
    font-size: 40px;
    height: 300px;
    color: #F0F8FF;
    text-align: center;
    margin: -67px 0 100px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}


.study-table{
    color: #333;
    width: 100%;
    height: 350px;
    margin: 20px;
}

.study-table-headline{
    background-color: #203321;
    color: white;
}

.study-table-data{
    background-color: #F0F8FF;
    padding: 8px;
}

/* 人工超知能 */
.AI-mechanism-h3 {
    background-image: url(../../assets/images/3268347_s.jpg);
    font-size: 50px;
    height: 400px;
    color: #FFFFFF;
    text-align: center;
    margin: -67px 0 100px;
    background-size: cover;
    background-position: top;
    background-repeat: no-repeat;
}

/* 特化型AI */

.AI-mechanism-h4 {
    background-image: url(../../assets/images/33786993_s.jpg);
    font-size: 50px;
    height: 300px;
    color: #FFFFFF;
    text-align: center;
    margin: -67px 0 100px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}




/* AIの規制 */

.AI-rules-h1 {
    background-image: url(../../assets/images/3472566_s.jpg);
    font-size: 50px;
    height: 300px;
    color: #FFFFFF;
    text-align: center;
    margin: -67px 0 100px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.advice-link {
    text-align: right;
}

/* AIの開発と提供 */

.AI-rules-h2 {
    background-image: url(../../assets/images/31385220_s.jpg);
    font-size: 50px;
    height: 300px;
    color: #FFFFFF;
    text-align: center;
    margin: -67px 0 100px;
    background-size: cover;
    background-position: center right;
    background-repeat: no-repeat;
}



/* シンギュラリティ */

.AI-technologys-h1 {
    background-image: url(../../assets/images/33701319_s.jpg);
    font-size: 50px;
    height: 400px;
    color: #FFFFFF;
    text-align: center;
    margin: -67px 0 100px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}



/* 生成AI */
.AI-technologys-h2 {
    background-image: url(../../assets/images/31453383_s.jpg);
    font-size: 50px;
    height: 400px;
    color: #FFFFFF;
    text-align: center;
    margin: -67px 0 100px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}


/* AIチェッカー */

.AI-checker-image {
    padding: 30px;
}

.AI-checker-image-2 {
    width: 800px;
    height: auto;
}


.down-arrow {
    font-size: 24px;
    text-align: center;
}

.center-image {
    margin-right: 300px;
    margin-left: 300px;
}

.report {
    border: 2px solid #769ca3;
    padding: 20px;
}


.sorarisu {
    width: 40%;
    margin-left: 300px;
}

/* 生成AI */

.AI-create-image {
  width: 350px; 
  height: auto;
}

.AI-create-image-ul {
    display: flex;
    width: 100%;
}

/* AIのイベント */

.word-paint,h3 {
    margin-top: 80px;
}

.right-side-image {
    display: flex;
    gap: 30px;
}


.AI-ivent-image-1 {
    height: 500px;
    width: auto;
    margin-top: 80px;
    border: 2px solid black;
    padding: 0;
}

.AI-ivent-image-2 {
    width: 380px;
    height: auto;
    margin-top: 80px;
}

.AI-ivent-image-3 {
    width: 800px;
    height: auto;
    margin-top: 50px;
}

/* AIと学問 */

.AI-study {
    background-image: url(../images/24394571_s.jpg);
    font-size: 50px;
    height: 400px;
    color: #FFFFFF;
    background-size: cover;
    background-position: top;
    background-repeat: no-repeat;
    margin: 0 0 100px;
}

.page-map {
    list-style: none;
    border: 2px solid #00aacc;
    padding: 10px 15px;
}

.page-map a {
    display: block;
    display: flex;
    color: #333;
    font-weight: bold;
}

.page-map a:hover { 
    color: #00aacc;
}

/* AI作ってみた */
.AI-making {
    text-align: center;
    margin-top: 120px;
}

/* AIとボードゲーム */

.AI-bordgame {
    text-align: center;
}

.jump-deep {
    color: red;
    transition: color 0.3s;
}

.jump-deep:hover {
    color: #0082aa;
}

/* AIの裏技 */

.AI-urawaza {
    text-align: center;
}

/* サイトマップ */

.map-title {
    text-align: center;
}

.site-map {
    margin: 0 20% 0 20%;
}

.site-map a {
    text-decoration: none;
}