:root {
  /* === メインカラー === */
  --color-main: #00a0e9;
  --color-main-light: #6fa79a;
  --color-main-dark: #171c61;
  --color-main-white: #ffffff;
  --color-main-brown: #40220f;

  /* === サブカラー === */
  --color-accent: #d9b77c;

  /* === ベース === */
  --color-text: #333;
  --color-bg: #ffffff;
  --color-gray: #f5f5f5;
  --color-border: #e5e5e5;

  /* === フォント === */
	
	--font-base: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
	--font-san_serif: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", sans-serif;
	--font-marugo:"Hiragino Maru Gothic ProN", "ヒラギノ丸ゴ ProN","Yu Gothic","游ゴシック","Meiryo",sans-serif;
	

  /* === サイズ === */
  --header-height: 60px;
  --header-height-shrink: 56px;
  --radius: 4px;
  --section_width: 950px;
}


img{
	width:100%;
}

html{
	font-size: 17px;
}
body {
  margin: 0;
  font-family: var(--font-base);
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  margin-top: var(--header-height);
}

section {
  max-width: var(--section_width);
  margin: 40px auto;
}
.head_section {
	padding: 0;
}

.hero {
  background: #f5f5f5;
  text-align: center;
  padding: 80px 20px;
}
.caution_red{
	color:red;
}



ul{
	padding: 0;
	margin: 0;
}
ul li{
	list-style-type: none;
}



h1 {
  font-size: 2.2rem;
	margin:0 0 20px 0;
}

h2 {
	font-size: 2.2rem;
	margin: 0;
	text-align: center;
	letter-spacing: 0.1em;
}
h3 {
  font-size: 1.6rem;
  margin: 0;
	font-weight: normal;
	color: black;
}

.strong_center_txt{
	font-size: 1.4rem;
	text-align: center;
	font-weight: 500;
	margin: 20px 0 0;
	letter-spacing: 0;
}


.pc_visible{
	display: block;
}
.mobile_visible{
	display: none;
}
/* スマホ */
@media (max-width: 768px) {
	
section {
  max-width: 100%;
	padding: 10px;
	overflow: hidden;
}
	
	.strong_center_txt{
	font-size: 1.1rem;
	}

	
	
	
.pc_visible{
	display: none;
}
.mobile_visible{
	display: block;
}
}




.btn {
  display: inline-block;
  padding: 14px 28px;
  text-decoration: none;
  background: var(--color-main);
  color: #fff;
  border-radius: var(--radius);
}

.feature-list {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.feature {
  flex: 1;
  background: #f0f0f0;
  padding: 20px;
}


/* ヘッダー基本 */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  /*background: rgba(255,255,255,0.9);*/
  transition: height 0.3s, box-shadow 0.3s;
  z-index: 1000;
  height: var(--header-height);
	 background: linear-gradient(
      135deg,
      rgba(255, 236, 170, 0.85) 0%,
      rgba(245, 208, 120, 0.85) 20%,
      rgba(212, 175, 55, 0.85) 45%,
      rgba(184, 134, 11, 0.85) 65%,
      rgba(212, 175, 55, 0.85) 85%,
      rgba(255, 236, 170, 0.85) 100%
    );
  backdrop-filter: saturate(120%) blur(4px);
}


.header-inner {
  max-width: 960px;
  margin: auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
	font-weight: bold;
  justify-content: space-between;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}


.tel img{
	width:200px;
}



/* ロゴ */
.logo {
  font-family: var(--font-serif);
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.08em;
}

/* メニュー */
.nav {
  display: flex;
  gap: 24px;
}

.nav a {
  color: #000;
  text-decoration: none;
}

/* 電話番号 */
.tel a {
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-decoration: none;
  white-space: nowrap;
}


.header.shrink {
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  height: var(--header-height-shrink);
	background: linear-gradient(
      135deg,
      rgba(255, 236, 170, 0.95) 0%,
      rgba(235, 198, 105, 0.95) 30%,
      rgba(184, 134, 11, 0.95) 60%,
      rgba(212, 175, 55, 0.95) 100%
    );
}


.logo img {
  width:210px;
}


/* ハンバーガー */
.menu-btn {
  display: none;
  background: none;
  border: none;
}

.menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: #333;
  margin: 5px 0;
}

/* スマホ */
@media (max-width: 768px) {
	
h1 {
  font-size: 2.2rem;
	margin:0;
}

h2 {
	font-size: 1.5rem;

}
h3 {
  font-size: 1.2rem;
}
	
	
  .nav {
	  display: block;
  position: fixed;
  top: 0;
  right: 0;
  width: 75%;
  height: 100vh;
  background:rgba(255,255,255,0.9);;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  z-index: 1000;
  }
	/* nav表示時 */
.nav.is-open {
  transform: translateX(0);
}

/* 画面全体を覆う透明レイヤー */
#nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5); /* 透明でOK */
  z-index: 999;
  display: none;
}

/* nav表示中だけ有効 */
#nav-overlay.is-active {
  display: block;
}
  .nav a{
	  display: block;
	  width: 100%;
	  padding: 10px 20px;
	  border-bottom: 1px dotted #333;
	  letter-spacing: 2px;
	}

  .menu-btn {
    display: block;
  }
	
	
.tel img{
	width:140px;
}
.logo img {
  width:140px;
}

}



footer {
  text-align: center;
  padding: 20px;
  background: #eee;
}

.copyright{
	margin-top: 40px;
	text-align: center;
	font-size:0.8rem;
}