@charset "utf-8";
/* CSS Document */

body {
	font-family: 'Helvetica Neue', sans-serif;
	margin: 0;
	padding: 0;
	line-height: 1.8;
	color: #333;
	max-width: 100%;
	overflow-x: hidden;
}

a {    
	text-decoration: none;
	color: inherit;
}
/**ヘッダー**/
.site_header {
  background-color: #fff;
  padding: 10px 0;
  /**box-shadow: 0 2px 5px rgba(0,0,0,0.1); **/
}
.header_inner {
  width: 90%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between; 
  align-items: center;
}
.header_logo img {
  width: 130px; 
  height: auto;
}
.header_btns {
  display: flex;
  gap: 30px; 
}
.header_btn_dl {
	display: inline-block;
	padding: 10px 30px;
	background-color: #fff;
	border: solid 2px #295E9E;
	color: #295E9E;
	text-decoration: none;
	border-radius: 50px;
	font-size: 14px;
	font-weight: 600;
}
.header_btn_dl i {
	font-size: 18px;
	padding-left: 10px;
}


.header_btn_form {
	display: inline-block;
	padding: 10px 30px;
	background-color: #295E9E;
	color: #fff;
	text-decoration: none;
	border-radius: 5px;
	font-size: 14px;
	font-weight: 600;
	border: solid 2px #295E9E;	 
	transition: all .2s;
}
.header_btn_form i {
	font-size: 18px;
	padding-left: 10px;
}
.header_btn_form:hover{
	background-color: #fff;
	color: #295E9E;
	border: solid 2px #295E9E;	 
}


.arch_top_inner {
	width: 80%;
	margin: 0 auto;
}
.arch_inner {
	width: 80%;
	margin: 0 auto;
}
.arch_intro {
	align-items: center;
	padding: 60px 40px;
	background-image: url("../img/arch_top_01.jpg");
	background-size: cover; 
	background-repeat: no-repeat; /* 繰り返し無し */
	background-position: center center; /* 中央配置 */
	height: 600px;
	margin: 0 5rem 5rem 5rem;
	border-radius: 30px;
}

.arch_intro-text {
	flex: 1;
	min-width: 300px;
	color: #fff;
}

.arch_lead {
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 20px;
}
.arch_disc {
	font-size: 20px;
}

.arch_paragraph {
  font-size: 16px;
  margin-bottom: 0;
}


.arch_download {
	position: relative;
	background-image: url("../img/arch_download_01.jpg");
	background-size: cover; 
	background-repeat: no-repeat; /* 繰り返し無し */
	background-position: center center; /* 中央配置 */
	height: 150px; 
	display: flex; 
	flex-direction: column;
	justify-content: center;
	align-items: center;
	text-align: center;
	padding: 40px 20px;
	width: 600px;
	margin: 0 auto 4rem;
	color: #fff;
	border-radius: 10px;
}
.arch_download-overlay {  
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(0, 0, 0, 0.4); /* 黒・40%透明 */
	z-index: 1;
	border-radius: 10px;	
}
.arch_download p,
.arch_download ,
.arch_download_ttl ,.arch_btn {
  position: relative; /* オーバーレイの上に表示 */
  z-index: 2;
}
.arch_download_ttl {
	font-size: 20px;
	font-weight: 600;
	margin: 0;
}
.arch_download_txt {
	font-size: 14px;
}
.arch_btn {
	display: inline-block;
	margin-top: 5px;
	padding: 15px 30px;
	background-color: #fff;
	border: solid 2px #295E9E;
	color: #295E9E;
	text-decoration: none;
	border-radius: 50px;
	font-size: 14px;
	font-weight: 600;
}
.arch_btn i {
	font-size: 20px;
	padding-left: 10px;

}

.arch_info {
	padding: 60px 40px;
	text-align: center;
}
.heading-arch {
    position: relative;
    padding-top: .75em;
    color: #333333;
	font-size: 2rem;
	text-align: center;
	font-weight: 600;
	margin-bottom: 2rem;
}

.heading-arch span {
	font-size: 1rem;
}

.heading-arch::before {
    position: absolute;
    bottom: 3.5em;
    left: 50;
    z-index: 1;
    color: #295E9E;
    font-size: 1rem;
    line-height: 1;
    content: attr(data-word);
    pointer-events: none;
}


.arch_back_img {
	background-image: url("../img/arch_back.png");
	width: 100%;
	background-position: center center; 
	height: 300px;
	opacity: .1;
}


.arch_works {
	padding: 60px 40px;
	text-align: center;
    position: relative;
	border-radius: 50px;
	margin: 5rem 10rem;
	background-color: #f7f7f7;
	/**
	background-color: #f4f4f4;
    **/
}

/**
.arch_works:after {
    content: "";
    background: #f7f7f7;
    width: 100vw;
    height: 100%;
    position: absolute;
    right: -18%;
    top: 0;
    display: block;
    border-radius: 0 36px 36px 0;
	z-index: -1;
	border-bottom-left-radius: 100px;
	border-top-left-radius: 100px;
}
**/



.arch_works-list {
	display: flex;
	gap: 50px;
	flex-wrap: wrap;
	justify-content: center;

}

.arch_works-item {
	width: 300px;
	background-color: #fff;
	border-radius: 10px;
	padding: 30px;
	box-shadow: 0 2px 5px rgba(0,0,0,0.1); 

}

.arch_works-txt {
	font-size: 14px;
	text-align: left;
	width: fit-content;
	margin: auto;
}
.arch_works-ttl {
	font-size: 18px;
	color: #295E9E;
	font-weight: 600;
}


/**協力会社様**/
.arch_partners {
  padding: 60px 40px;
  text-align: center;
}

.arch_list {
  max-width: 1000px;
  margin: 60px auto;
  padding: 0 20px;
}

/* PC用リスト */
.pc-only {
  display: block;
}
.sp-only {
  display: none;
}

.arch_list-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr; /* 3列（タイトル＋リスト2つ） */
  gap: 40px;
  align-items: start;
  border-bottom: solid 1px #9E9E9E;
  border-top: solid 1px #9E9E9E;
  padding: 3rem 0;
}

.arch_list-title {
  font-weight: bold;
  font-size: 18px;
}

.arch_list-col {
  list-style: disc inside;
  margin: 0;
  padding: 0;
  font-size: 16px;
  text-align: left;
}

.arch_list-col li {
  margin-bottom: 8px;
}


/**会社概要**/
.arch_company {
  padding: 60px 40px 40px;
  text-align: center;
}

.arch_company-box {
	max-width: 800px;
	margin: 0 auto;
}
.arch_company-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 30px;
  font-size: 14px;
}


.arch_company-table th,
.arch_company-table td {
  border-bottom: 1px solid #ccc;
  padding: 20px 12px;
  text-align: left;
  vertical-align: top;
}

.arch_company-table th {
	width: 30%;
	font-weight: bold;
	color: #295E9E;
	font-size: 16px;
}

/**コンタクト**/
.arch_contact {
	background-color: #f7f7f7;
	padding: 3rem;
}
.arch_contact_inner {
	display: flex;
	max-width: 1000px;
	margin: 0 auto;
	gap: 5px;
	justify-content: center;
}
.contact_ttl_side {
	padding:  70px 15px 70px;
	text-align: center;
	width: 400px;
	background-color: #fff;
	margin: 2rem 0;
	align-content: center;
	box-sizing: border-box;	
}
.contact_ttl {
	font-size: 1.5rem;
	font-weight: 600;
	margin: 0 0 30px;	
}
.contact_ttl::after {
	content: '';
	display: block;
	width: 85px;
	height: 4px;
	background: #295E9E;
	margin: 5px auto 10px;
	border-radius: 10px;

}
.contact_ttl_lead {
	font-size: 14px;
}

.contact_add_side {
	box-sizing: border-box;
	padding: 70px 35px 70px;
	text-align: center;
	background-color: #fff;
	margin: 2rem 0;
	width: 580px;
	
}
.contact_tel {
	margin-bottom: 20px;
}
.contact_tel_num {
	font-size: 2.3rem;
	margin: 0;
}
.contact_tel_num i {
	padding-right: 10px;
}
.contact_tel_time {
	font-size: 14px;
	margin: 0;
}
.contact_form {
	padding: 20px 0;
	border-radius: 5px;
	width: 300px;
	background-color: #295E9E;
	color: #fff;
	text-align: center;
	margin: auto;
	display: block;
	transition: all .2s;
}
.contact_form:hover{
  transform: scale(1.1, 1.1);
}


/**フッター**/
.arch_footer {
  background-color: #363636;
  color: #fff;
  text-align: center;
  padding: 30px;
  font-size: 14px;
}

.footer_inner {
	width: 80%;
	margin: 0 auto;
	text-align: left;
}
.footer_add {
	padding-left: 45px;
}

/*============
タブレット
=============*/
@media screen and (max-width: 1023px) {
	
	.arch_intro {
		margin: 0 3rem;
	}
	.arch_lead {
		margin: 0;
	}
	.arch_inner {
		width: 90%;
	}
	.arch_works {
		margin: 2rem;
		padding: 30px 10px 40px;
	}
	.arch_works-list {
		gap:20px;
	}



}



/*============
スマホ
=============*/

@media screen and (max-width: 430px) {
	
	
	/**ヘッダー**/
	.header_inner {
		align-items: center;
		gap: 10px;
	}

	.header_logo img {
		width: 80px; 
	}

	.header_btns {
		gap: 10px;
		width: 100%;
		align-items: center;
		justify-content: right;
	}

	.header_btn_dl {
		font-size: 12px;
	}
	.header_btn_dl span {
		display: none;
	}
	
	
	
	.header_btn_form {
		width: 20%;  
		text-align: center;
		padding: 12px 0;
		font-size: 0;
		border-radius: 50px;
	}
	.header_btn_form i {
		padding-left: 0;
	}

	.arch_top_inner {
		width: 95%;
	}

	.arch_intro {
		padding: 30px 20px;
		height: 400px;
		width: 80%;
		margin: 0 1rem;
		border-radius: 15px;
		background-position: center center;
	}
	.arch_lead {
		font-size: 1.3rem;
		text-align: center;
		margin: 0;
	}
	.arch_disc {
		font-size: 16px;
		text-align: center;
	}
	
	/**about**/

	.arch_inner {
		width: 90%;
	}

	.arch_info {
		padding: 30px 20px;
		text-align: left;
  }
	.heading-arch {
		font-size: 1.5rem;
		text-align: center;
		margin-bottom: 1rem;
  }

	.heading-arch::before {
		font-size: 0.8rem;
		bottom: 3em;
		left: 50%;
		transform: translateX(-50%);
		text-align: center;
	}

	.arch_works {
		padding: 30px 20px;
		margin: 1rem;
		border-radius: 20px;
	}
	.arch_works-list {
		gap: 20px;
	}
	.arch_works-item {
		width: 100%;
		max-width: 300px;
		margin: 0 auto;
		padding: 20px;
	}
	.arch_works-item img {
		width: 80%;
	}
	.arch_partners {
		padding: 30px 20px;
		text-align: left;
	}
	
	.pc-only { display: none; }
	.sp-only { display: block; }
	
	.arch_list {
		margin: 30px auto;
		padding: 0;
	}

	.arch_list-grid {
		grid-template-columns: 1fr; /* 1列に変更 */
		gap: 20px; /* ギャップ縮小 */
		padding: 2rem 0;
  }

	.arch_list-title {
		text-align: center; /* タイトル中央寄せ */
		font-size: 16px; /* 少し小さく */
	}

	.arch_list-col {
		display: flex;
		flex-wrap: wrap;
		justify-content: center; /* 中央寄せ */
		padding-left: 20px;
		margin: 0;
	}  
	.arch_list-col li {
		width: 45%; /* 2列化 */
		font-size: 14px;
		text-align: left;
	}
	/**背景グラフィック非表示**/
	.arch_back_img {
		display: none;
	}
	

	/**会社概要**/
	.arch_company {
		padding: 30px 20px 20px; 
		text-align: center;
	}
	.arch_company-box {
		max-width: 100%;
	}
	.arch_company-table {
		font-size: 12px; 
	}
	.arch_company-table th,
	.arch_company-table td {
		display: block; /* 縦並び */
		width: 100%;
		padding: 10px 5px;
	}
	.arch_company-table th {
		font-size: 14px; /* thだけ少し大きめ */
	}
	.arch_company-table tr {
		display: block;
	}
	
	/**ダウンロード**/

	.arch_download {
		width: 80%; 
		height: auto; 
		padding: 30px 10px; 
		margin: 0 auto 2rem; 
	}
	.arch_download_ttl {
		font-size: 16px; 
	}
	.arch_download_txt {
		font-size: 12px; 
	}
	.arch_btn {
		padding: 10px 20px; 
		font-size: 12px; 
	}
	.arch_btn i {
		font-size: 16px; 
		padding-left: 5px; 
	}

	/**コンタクト**/	
	.arch_contact {
		padding: 1rem;
	}

	.arch_contact_inner {
		flex-direction: column; /* 縦並び */
		gap: 0; 
	}
	.contact_ttl_side,
	.contact_add_side {
		width: 90%; 
		padding: 15px; 
		margin: 10px auto; 
	}
	.contact_ttl {
		font-size: 1rem; 
		margin-bottom: 10px;
	}
	.contact_ttl::after {
		width: 60px; /* アンダーライン短く */
		height: 2px; 
		margin: 5px auto 8px; 
	}
	.contact_ttl_lead {
		font-size: 12px; 
	}
	.contact_tel_num {
		font-size: 1.5rem; 
	}
	.contact_tel_time {
		font-size: 12px; 
	}
	.contact_form {
		width: 70%; 
		padding: 15px 0; 
		font-size: 14px; 
	}
	
	/**フッター**/	
	.arch_footer {
		padding: 20px;
	}
	.footer_inner {
		width: 100%;
		text-align: center;
	}
	.footer_add {
		padding-left: 0;
		font-size: 12px;
	}

	
	
}