@charset "utf-8";
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@300&display=swap');
/***********************************
 reset
***********************************/
@font-face {
	font-family: YuGothicM;
	src: local("Yu Gothic Medium");
}
*, html, body, div, dl, dt, dd, ul, ol, li, header, footer, nav,section,
h1, h2, h3, h4, h5, h6, form, input, textarea, p{
	margin: 0;
	padding: 0;
	font-size: 1em;
}
dl, ul, ol{
	list-style-type: none;
}
html{
	overflow: unset;
	height: auto;
	min-height: 100%;
}
a{
//	transition: all 1.0s;
	color: #3d3d3d;
//	text-decoration: none;
}
a:hover{
	color: #005dff;
}

input[type="submit"],
input[type="button"] {
	border-radius: 0;
	-webkit-box-sizing: content-box;
	-webkit-appearance: button;
	appearance: button;
	border: none;
	box-sizing: border-box;
	cursor: pointer;
}
input[type="submit"]::-webkit-search-decoration,
input[type="button"]::-webkit-search-decoration {
	display: none;
}
input[type="submit"]::focus,
input[type="button"]::focus {
	outline-offset: -2px;
}
/***********************************/



header{
	padding:0;
	height:98px;
	background:url(/images/header_bg.png);
	overflow:hidden;
	border-top:7px solid #9cc862;
	min-width:1200px;
}
body{
	margin:0;
	padding:0;
	overflow:scroll;
	font-family: 'Noto Serif JP', serif;

}
h3,h4,h5{
	font-family: "游ゴシック", "YuGothic", "メイリオ", meiryo, sans-serif;
}
h1{
	margin:8px 0 0 0;
	padding:0;	
	display:block;
	float: left;
	width:305px;
	height:78px;

}


h1 a{
	margin:0;
	padding:0;	
	display:block;
	float: left;
	width:305px;
	height:78px;
	background:url(/images/logo.png);
	text-indent:-9999px;

}

ul#globalNav{
	display:block;
	margin:10px 0 0 0;
	overflow:hidden;
	height:72px;
	float:right;
}
ul#globalNav li{
	display:block;
	float: left;
	width:140px;
	height:72px;
}

ul#globalNav li a{
	display:block;
	float: left;
	width:140px;
	height:72px;
	text-indent:-9999px;

}

ul#globalNav li:nth-child(1) a{
	background:url(/images/nav1.png) top;
}
#globalNav li:nth-child(1) a:hover,
#globalNav li:nth-child(1) a:active{
	background:url(/images/nav1.png) bottom;
}

ul#globalNav li:nth-child(2) a{
	background:url(/images/nav2.png) top;
}
#globalNav li:nth-child(2) a:hover,
#globalNav li:nth-child(2) a:active{
	background:url(/images/nav2.png) bottom;
}

ul#globalNav li:nth-child(3) a{
	background:url(/images/nav3.png) top;
}
#globalNav li:nth-child(3) a:hover,
#globalNav li:nth-child(3) a:active{
	background:url(/images/nav3.png) bottom;
}
	
ul#globalNav li:nth-child(4) a{
	background:url(/images/nav4.png) top;
}
#globalNav li:nth-child(4) a:hover,
#globalNav li:nth-child(4) a:active{
	background:url(/images/nav4.png) bottom;
}

.container{
	margin:0 auto ;
	display:block;
	width:1000px;
}


#index h2{
	margin:0 auto;
	padding:0;	
	display:block;
	width:1000px;
	height:403px;
	background:url(/images/main.png);
	text-indent:-9999px;
}

#index main div#mainImage{
	padding:10px 0 10px 0;	
	display:block;
	width:100%;
	height:410px;
	background:#fcc784;
}
#index main article#example{
	overflow:hidden;
	margin:0;
	padding:0;
	display:block;
	width:100%;
	background:url(/images/example_bg.png);
}

.other main div#mainImage{
	padding:10px 0 15px 0;	
	display:block;
	width:100%;
	background:#fcc784;
}
.other h2{
	margin:0 auto;
	padding:0;	
	display:block;
	width:1000px;
	height:175px;
	text-indent:-9999px;
}

/****************************************************/
/*                   H2                             */
/****************************************************/

#math1 h2{
	background:url(/images/h2-1.png);
}
#math2 h2{
	background:url(/images/h2-2.png);
}
#math3 h2{
	background:url(/images/h2-3.png);
}
#page3 h2{
	background:url(/images/math1.png);
}
#h2-1-1{
	background:url(/images/1-1.png);
}
#h2-1-2{
	background:url(/images/1-2.png);
}
#h2-1-3{
	background:url(/images/1-3.png);
}
#h2-1-4{
	background:url(/images/1-4.png);
}
#h2-1-5{
	background:url(/images/1-5.png);
}
#h2-1-6{
	background:url(/images/1-6.png);
}
#h2-1-7{
	background:url(/images/1-7.png);
}
#h2-2-1{
	background:url(/images/2-1.png);
}
#h2-2-2{
	background:url(/images/2-2.png);
}
#h2-2-3{
	background:url(/images/2-3.png);
}
#h2-2-4{
	background:url(/images/2-4.png);
}
#h2-2-5{
	background:url(/images/2-5.png);
}
#h2-2-6{
	background:url(/images/2-6.png);
}
#h2-3-1{
	background:url(/images/3-1.png);
}
#h2-3-2{
	background:url(/images/3-2.png);
}
#h2-3-3{
	background:url(/images/3-3.png);
}
#h2-3-4{
	background:url(/images/3-4.png);
}
#h2-3-5{
	background:url(/images/3-5.png);
}
#h2-3-6{
	background:url(/images/3-6.png);
}
#h2-3-7{
	background:url(/images/3-7.png);
}
#h2-3-8{
	background:url(/images/3-7.png);
}

.box{
	margin:0 20px 0 0;
	display:block;
	float:left;
	width:320px;
	height:232px;
	background:#ffffff;
	overflow:hidden;
}
.box:nth-child(3){
	margin:0;
}
.box p{
	padding:19px;
}
.box h3{
	margin:0;
	padding:5px 0 5px 21px;
	display:block;
	width:calc(100% - 21px);
	height:43px;
	line-height:43px;
	background:#649722;
	color: #ffffff;
	font-weight: normal; 
	font-size:20px;
}
a.answer{
	margin:0 auto;
	display:block;
	width:125px;
	height:51px;
	background:url(/images/button.png) top;
	text-indent:-9999px;
}
a.answer:hover,
a.answer:active{	
	background:url(/images/button.png) bottom;
}
main article#example section{
	overflow:hidden;
	margin:35px auto;
	display:block;
	width:1000px;
}
section{
	display:block;
	margin-bottom:40px;
}

section h3{
	overflow:hidden;
	margin:15px 0 20px 0;
	padding:8px 0 8px 26px;
	display:block;
	width:660px;
	height:47px;
	float:left;
	background:url(/images/midasi.png);
	color: #ffffff;
	font-size: 30px;
	font-weight: normal; 
}
main article{
	overflow:hidden;
	margin:0;
	padding:0;
	display:block;
	width:660px;
	float:left;
}
main aside{
	display:block;
	margin:16px 0 0 0 ;
	width:310px;
	float:right;
	overflow:hidden;
}
main{
	margin:0;
	padding:0;
	display:block;
	overflow:hidden;
	width:100%;
	min-width:1200px;
}
footer{
	margin:50px 0 0 0;
	padding:20px;
	display:block;
	overflow:hidden;
	width:100%;
	min-width:1200px;
	color:#ffffff;
	background:#222222;
	float:left;
	height:128px;
	text-align: center
}
a.question{
	margin:0 auto;
	display:block;
	width:125px;
	height:51px;
	background:url(/images/Qbutton.png) top;
	text-indent:-9999px;
}
a.question:hover,
a.question:active{	
	background:url(/images/Qbutton.png) bottom;
}
#page3 h2#h2noName{
	padding-right:500px;
	padding-top:70px;
	height:94px;
	width:500px;
	background:url(/images/h2noName.png);
	text-indent:0px;
	color:#ffffff;
	text-align:center;
	font-size: 31px;
	font-weight: normal;

}

.pankuzu{
  margin:10px auto 0 auto;
display:block;
width:1000px;
  padding: 0;
  list-style: none;
}
.pankuzu li{
  position: relative;
  display: inline-block;/*横に並ぶように*/
  list-style: none;
  font-weight: bold;/*太字*/
  margin-right: 0.8em;
  width:auto;
}
.pankuzu li:after{
  content: "";
  position: absolute;
  top: 0;
  left: 100%;
  border-style: solid;
  border-color: transparent;
  border-left-color: #aedfc6;/*背景色*/
  border-width: 14px 12px;
  width: 0;
  height: 0;
}
.pankuzu li a{
  display: inline-block;
  padding: 0 3px 0 7px;
  height: 28px;
  line-height: 28px;
  text-decoration: none;
  color: #747772;
  background: #aedfc6;/*背景色*/
  font-size: 13px;
}
.pankuzu li a:hover{
color: #FFF;
}

/********** 2022/07/22追加 ******/
.box26 {
    display:block;
    float:left;
    margin: 30px 0;
    padding: 0.5em 1em;
    border: solid 3px #95ccff;
    border-radius: 8px;
    width:calc(100% - 1em - 22px);
    background:#edf6ff;
}
.box26 .box-title {
    position: relative;
    display: inline-block;
    top: -1.3em;
    left: 10px;
    padding: 0.3em 9px;
    line-height: 1;
    font-size: 19px;
    background: #95ccff;
    color: #ffffff;
    font-weight: bold;
    width: fit-content;
}
.box26 p {
    margin: 0; 
    padding: 0;
}

.box26 p.right {
	float:right;
	text-align:right;
}