/* =====================================
   ベーススタイル
===================================== */
body {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: #333;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* =====================================
   ヘッダー（共通）
===================================== */
header {
  background: #fff;
  border-bottom: 1px solid #ddd;
  position: sticky;
  top: 0;
  z-index: 1000;
}

header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6em 5%;
  min-height: 70px;
  position: relative;
}

.logo img {
  height: 50px;
  vertical-align: middle;
  display: block;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 2em;
}

/* =====================================
   ナビゲーション（PC時）
===================================== */
nav ul.navi {
  list-style: none;
  display: flex;
  margin: 0;
  padding: 0;
}

nav ul.navi li {
  margin-left: 1.5em;
  position: relative;
}

/* 区切り線（斜めスラッシュ） */
nav ul.navi li + li::before {
  content: "";
  position: absolute;
  left: -0.8em;
  top: 50%;
  width: 1px;
  height: 14px;
  background: #ccc;
  transform: translateY(-50%) rotate(20deg);
}

/* リンク */
nav ul.navi a {
  text-decoration: none;
  color: #333;
  font-weight: 500;
  transition: color 0.2s;
}

nav ul.navi a:hover {
  color: #0066cc;
}

/* =====================================
   ハンバーガーアイコン（初期は非表示）
===================================== */
.ac_menu {
  display: none; /* PCでは非表示 */
  width: 28px;
  height: 20px;
  cursor: pointer;
  z-index: 10000;
  position: relative;
}

.ac_menu span,
.ac_menu span::before,
.ac_menu span::after {
  position: absolute;
  content: "";
  left: 0;
  width: 28px;
  height: 3px;
  background: #333;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.ac_menu span {
  top: 50%;
  transform: translateY(-50%);
}

.ac_menu span::before {
  top: -8px;
}

.ac_menu span::after {
  bottom: -8px;
}

/* 開いたとき（×） */
.ac_menu.active span {
  background: transparent;
}

.ac_menu.active span::before {
  transform: rotate(45deg);
  top: 0;
}

.ac_menu.active span::after {
  transform: rotate(-45deg);
  bottom: 0;
}

/* =====================================
   パンくずリスト
===================================== */
.breadcrumb {
  font-size: 0.9rem;
  margin: 20px 5%;
}

.breadcrumb ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  padding: 0;
  margin: 0;
}

.breadcrumb li + li::before {
  content: "＞";
  margin: 0 0.5em;
  color: #aaa;
}

.breadcrumb a {
  text-decoration: none;
  color: #0066cc;
}

/* =====================================
   フッター
===================================== */
footer {
  background: #f7f7f7;
  text-align: center;
  padding: 1em 0;
  margin-top: 40px;
}