@charset "utf-8";

/* -- ブラウザのデフォルトスタイルリセット -- */
p, h1, h2, h3, h4, h5, h6 {
    margin: 0;
}

img {
    vertical-align: bottom;
}

ul {
    margin: 0;
    padding: 0;
}

/* -- 基本設定 -- */
body {
    width: 320px;
    margin: 0 auto;
    font-size: 12px;
    font-family: 'メイリオ' ,Meiryo, 'ヒラギノ角ゴ Pro W3' , 'Hiragino Kaku Gothic Pro' , 'ＭＳ Ｐゴシック';
}

@media screen and (min-width: 600px) {
    body {
        width: 600px;
    }
}

@media  screen and (min-width: 1280px) {
    body {
        width: 100%;
        font-size: 15px;
    }
}

header {
    width: 320px;
    height: 50px;
    margin: 0 auto;
    display: flex;
    position: fixed;
	align-items: center;
	border-radius: 10px;
	box-shadow: 5px 5px 15px rgba(0,0,0,0.15);	/*ボックスの影。右へ、下へ、ぼかし幅。0,0,0は黒のことで0.15は色が15%出た状態。*/
	background: linear-gradient(#38a1db, rgba(255,255,255,0.7));	/*背景グラデーション。255,255,255は白のことで0.7は色が70%出た状態。*/ 
}

@media screen and (min-width: 600px) {
    header {
        width: 600px;
    }
}

@media  screen and (min-width: 1280px) {
    header {
        width: 100%;
        height: 80px;
        position: relative;
        border-radius: 0;
}
}

footer {
    width: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
	background: linear-gradient(#38a1db, rgba(255,255,255,0.7)); 
}

@media screen and (min-width: 600px) {
    footer {
        width: 600px;
    }
}

@media  screen and (min-width: 1280px) {
    footer {
        width: 100%;
    }
}

h1 {
    font-size: 14px;
    text-decoration: underline;
}

@media  screen and (min-width: 1280px) {
    h1 {
        font-size: 17px;
    }
}

h2 {
    margin: 0px 5px 8px;
    padding-left: 20px;
    font-size: 16px;
    color: #ffffff;
    background-image: url(../images/titleBg_1Ed.png);
    background-size: cover;
    border-radius: 10px;
}

h3 {
    font-size: 14px;
}

h4 {
    font-size: 13px;
    color: #007bbb ;
    text-decoration: underline;
}

@media  screen and (min-width: 1280px) {
    h2 {
        font-size: 19px;
    }

    h3 {
        font-size: 17px;
        margin-bottom: 10px;
    }

    h4 {
        font-size: 16px;
    }
}

img {
    width: 100%;
}

iframe {
    width: 100%;
    height: 256px;
    border: 0;
}

@media  screen and (min-width: 1280px) {
    iframe {
        width: 60%;
        margin-left: 20%;
    }
}

nav {
    margin: 0 10px;
}

@media  screen and (min-width: 1280px) {
    nav {
        margin: 0 50px;
    }
}

section {
    border: 2px solid silver;
    border-radius: 10px;
    margin: 5px 0;
    padding: 5px;
}

@media  screen and (min-width: 1280px) {
    section {
        margin: 5px;
    }
}

small {
    font-size: 11px;
    margin: 0 auto;
    text-align: center;
}

@media  screen and (min-width: 1280px) {
    small {
        font-size: 14px;
    }
}

ul {
    list-style: square;
    list-style-position: inside;
}

.main {
    padding-top: 50px;
}

@media  screen and (min-width: 1280px) {
    .main {
        padding-top: 0;
    }
}

.dropdown__lists {
    display: none;
    width: 180px;
    position: absolute;
    top: 45px;
    right: 0;
	background: linear-gradient(#fff, rgba(56,161,219,0.9));	/*背景グラデーション。255,255,255は白のことで0.7は色が70%出た状態。*/
}

.dropdown__list {
    margin: 5px;
    font-weight: 500;
}

.dropdown__list a {
    color: black;
    text-decoration: none;
}

.menu_lists:hover .dropdown__lists {
    display: block;
}

.menu_lists {
    display: flex;
    margin-left: 50px;
}

@media  screen and (min-width: 600px) {
    .menu_lists {
        margin-left: 330px;
    }
}

@media  screen and (min-width: 1280px) {
    .menu_lists {
        display: none;
    }
}

.menu_lists ul {
    list-style: none;
}

.menu_list {
    list-style: none;
}

.menu_lists_2 {
    display: none;
    list-style: none;
}

@media  screen and (min-width: 1280px) {
    .menu_lists_2 {
        display: flex;
    }
}

.menu_lists_2 li {
    width: 100px;
    height: 50px;
    background-color: white;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: auto 5px;
    text-align: center;
    font-weight: 500;
}

.menu_lists_2 li:hover {
    background-image: url(../images/tree.png);
    background-position: center;
    background-repeat: no-repeat;
}

.menu_lists_2 li a {
    width: 100px;
    height: 50px;
    color: black;
    vertical-align: middle;
    text-decoration: none;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 5px;
}

.box {
    margin: 5px 0;
    padding: 5px;
    border: 2px solid silver;
    border-radius: 10px;
}

.center {
    display: flex;
    justify-content: center;
    align-items: center;
}

@media  screen and (min-width: 1280px) {
    .one_block {
        margin: 0 10px;
        width: 40%;
    }
    
    .two_block {
        display: flex;
    }
}

@media  screen and (min-width: 1280px) {
    #concept_image {
        width: 50%;
    }
    
    #intro_image {
        display: none;
    }
}

#logo img {
    width: 200px;
}

@media  screen and (min-width: 1280px) {
    #logo img {
        width: 250px;
    }
}

#menu_icon img {
    width: 40px;
}

#instagram_icon img {
    width: 30px;
    display: none;
}

@media screen and (min-width: 1280px) {
    #instagram_icon img {
        display: block;
    }
}

#one_image {
    width: 50%;
    margin: 10px;
    padding-left: 25%;
}

#one_works_image {
    margin: 10px;
}

#left_image {
    margin: 10px;
    width: 40%;
}

#right_image {
    margin: 10px;
    width: 40%;
}

@media screen and (min-width: 600px) {
    #one_works_image {
        width: 60%;
    }
}

@media screen and (min-width: 1280px) {
    #one_image {
        width: 30%;
        padding-left: 0;
    }

    #one_works_image {
        width: 100%;
    }
}

#top_image {
    display: none;
}

@media  screen and (min-width: 1280px) {
    #top_image {
        display: block;
    }
}