:root{
  --bg:#F3F5EC;
  --bg-alt:#ECEFE1;
  --card:#FFFFFF;
  --ink:#22302A;
  --ink-soft:#5B675F;
  --primary:#1D3B36;      /* 深いティール（見出し・ナビ） */
  --primary-deep:#1D3B36; /* テーマ帯・フッター背景 */
  --orange:#E1801E;       /* オレンジ（アクセント・ボタン） */
  --orange-soft:#FBEBD8;  /* オレンジの淡色背景 */
/*  --lime:#7C9A46;         /* グリーン（ハイライト） */
  --green:#7C9A46;
  --green-soft:#EAF0DC;
  --line:#DBE1D2;
  --serif:'Shippori Mincho', serif;
  --sans:'Zen Kaku Gothic New', 'Hiragino Sans', sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--bg);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit; text-decoration:none;}
img,svg{display:block; max-width:100%;}
ul{list-style:none; margin:0; padding:0;}
.wrap{max-width:1120px; margin:0 auto; padding:0 32px;}
h1,h2,h3{font-family:var(--serif); font-weight:700; margin:0; letter-spacing:.02em;}
a:focus-visible, button:focus-visible{outline:3px solid var(--orange); outline-offset:3px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(243,245,236,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:1120px; margin:0 auto; padding:16px 32px;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.logo{display:flex; align-items:center; gap:12px; flex-shrink:0;}
.logo-text{font-family:var(--serif); font-weight:700; font-size:15px; line-height:1.5; color:var(--primary);}
.logo-text small{display:block; font-family:var(--sans); font-weight:500; font-size:10.5px; letter-spacing:.14em; color:var(--green); margin-bottom:2px;}

nav.main-nav{display:flex;}
nav.main-nav > ul{display:flex; align-items:center; gap:4px;}
nav.main-nav > ul > li{position:relative;}
.nav-link{
  display:flex; align-items:center; gap:5px;
  padding:12px 16px; font-size:14.5px; font-weight:700;
  color:var(--primary); border-radius:6px; cursor:pointer;
  background:none; border:none; font-family:var(--sans);
}
.nav-link:hover, .nav-link[aria-expanded="true"]{background:var(--orange-soft); color:var(--orange);}
.caret{width:8px; height:8px; border-right:2px solid currentColor; border-bottom:2px solid currentColor; transform:rotate(45deg); margin-top:-3px; transition:transform .2s ease;}
li.has-dropdown:hover .caret, .nav-link[aria-expanded="true"] .caret{transform:rotate(225deg); margin-top:3px;}

.dropdown{
  position:absolute; top:calc(100% + 6px); left:0; min-width:220px;
  background:var(--card); border:1px solid var(--line); border-radius:10px;
  box-shadow:0 14px 34px rgba(29,59,54,0.18);
  padding:8px; opacity:0; visibility:hidden; transform:translateY(-6px);
  transition:opacity .18s ease, transform .18s ease, visibility .18s;
}
li.has-dropdown:hover .dropdown,
li.has-dropdown:focus-within .dropdown,
.dropdown.is-open{
  opacity:1; visibility:visible; transform:translateY(0);
}
.dropdown a{
  display:block; padding:10px 14px; font-size:13.5px; font-weight:500;
  color:var(--ink); border-radius:7px;
}
.dropdown a:hover{background:var(--orange-soft); color:var(--orange);}
.dropdown a.is-current{color:var(--orange); font-weight:700;}

.menu-toggle{display:none; background:none; border:none; cursor:pointer; padding:6px;}
.menu-toggle span, .menu-toggle::before, .menu-toggle::after{content:''; display:block; width:24px; height:2px; background:var(--primary); margin:5px 0; transition:.2s;}

@media (max-width:860px){
  nav.main-nav{
    position:fixed; top:70px; left:0; right:0; bottom:0;
    background:var(--bg); padding:20px 24px; overflow-y:auto;
    transform:translateX(100%); transition:transform .25s ease;
  }
  nav.main-nav.is-open{transform:translateX(0);}
  nav.main-nav > ul{flex-direction:column; align-items:stretch; gap:2px;}
  .nav-link{width:100%; justify-content:space-between; font-size:16px; padding:14px 10px;}
  .dropdown{position:static; box-shadow:none; opacity:1; visibility:visible; transform:none; max-height:0; overflow:hidden; transition:max-height .22s ease; border:none; padding:0 0 0 14px;}
  .dropdown.is-open{max-height:300px; padding:6px 0 10px 14px;}
  .menu-toggle{display:block;}
}

/* ---------- Hero (画像なし・中央揃えのシンプル構成) ---------- */
.hero{
  position:relative; overflow:hidden;
  padding:108px 0 96px;
  background:linear-gradient(180deg, #FFFFFF 0%, var(--bg-alt) 100%);
  text-align:center;
}
.hero .wrap{position:relative; z-index:2; max-width:760px;}
.hero-eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:12.5px; font-weight:700; letter-spacing:.18em; color:var(--green);
  margin-bottom:22px;
}
.hero-eyebrow::before, .hero-eyebrow::after{content:''; width:22px; height:1px; background:var(--green);}
.hero h1{font-size:clamp(30px, 4.6vw, 48px); line-height:1.55; color:var(--primary);}
.hero h1 em{font-style:normal; color:var(--orange); border-bottom:3px solid var(--orange-soft);}
.hero p.lead{margin:26px auto 0; font-size:15.5px; color:var(--ink-soft); max-width:48ch;}
.hero-divider{width:64px; height:2px; background:var(--green); margin:36px auto 0; border-radius:2px;}

/* ---------- Section shell ---------- */
section{padding:84px 0;}
.section-head{margin-bottom:44px; max-width:640px;}
.section-eyebrow{font-size:12px; font-weight:700; letter-spacing:.18em; color:var(--orange); margin-bottom:10px; display:block;}
.section-head h2{font-size:clamp(22px,3vw,30px); color:var(--primary);}
.section-head p{color:var(--ink-soft); margin-top:14px; font-size:14.5px;}

/* ---------- News ---------- */
.news{background:var(--bg-alt); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
.news-panel{
  border:1px dashed var(--line); border-radius:14px; padding:48px 32px;
  text-align:center; background:#fff;
}
.news-panel svg{margin:0 auto 18px;}
.news-panel p.msg{font-weight:700; color:var(--primary); font-size:15px; margin:0 0 6px;}
.news-panel p.sub{color:var(--ink-soft); font-size:13.5px; margin:0;}

/* ---------- Pillars ---------- */
.pillars-grid{display:grid; grid-template-columns:repeat(3, 1fr); gap:24px;}
.pillar-card{
  background:var(--card); border:1px solid var(--line); border-radius:16px;
  padding:32px 28px; display:flex; flex-direction:column; gap:14px;
  transition:box-shadow .2s ease, transform .2s ease;
}
.pillar-card:hover{box-shadow:0 16px 34px rgba(29,59,54,0.16); transform:translateY(-3px);}
.pillar-num{font-family:var(--serif); font-size:13px; font-weight:700; color:var(--orange);}
.pillar-card h3{font-size:19px; color:var(--primary);}
.pillar-card p{color:var(--ink-soft); font-size:14px; margin:0; flex-grow:1;}
.pillar-card ul{margin-top:4px; display:flex; flex-direction:column; gap:6px;}
.pillar-card ul li{font-size:13.5px; color:var(--ink); padding-left:16px; position:relative;}
.pillar-card ul li::before{content:''; position:absolute; left:0; top:9px; width:6px; height:6px; border-radius:50%; background:var(--green);}
.pillar-more{margin-top:8px; font-size:13px; font-weight:700; color:var(--orange); display:inline-flex; align-items:center; gap:6px;}
.pillar-more::after{content:'→'; transition:transform .15s;}
.pillar-card:hover .pillar-more::after{transform:translateX(4px);}
@media (max-width:860px){.pillars-grid{grid-template-columns:1fr;}}

/* ---------- Theme callout ---------- */
.theme-section{background:var(--primary-deep); color:#fff;}
.theme-section .section-eyebrow{color:#B7D08A;}
.theme-section .section-head h2{color:#fff;}
.theme-section .section-head p{color:#CBD8CE;}
.theme-card{
  background:rgba(255,255,255,0.08); border:1px solid rgba(255,255,255,0.22);
  border-radius:18px; padding:44px; display:flex; align-items:center; gap:36px; flex-wrap:wrap;
}
.theme-year{font-family:var(--serif); font-size:14px; font-weight:700; color:var(--orange); letter-spacing:.08em;}
.theme-card h3{font-family:var(--serif); font-size:clamp(22px,3.2vw,30px); margin-top:8px; color:#fff; font-weight:700;}
.theme-card p{color:#CBD8CE; font-size:14px; margin-top:12px; max-width:52ch;}

/* ---------- Page banner (subpages) ---------- */
.page-banner{
  background:var(--bg-alt); border-bottom:1px solid var(--line);
  padding:10px 0 10px;
}
.breadcrumb{display:flex; align-items:center; gap:8px; font-size:12.5px; color:var(--ink-soft); margin-bottom:16px; flex-wrap:wrap;}
.breadcrumb a{color:var(--orange); font-weight:700;}
.breadcrumb span.sep{color:#B7C2AE;}
.page-banner .section-eyebrow{margin-bottom:8px;}
.page-banner h1{font-size:clamp(24px,3.4vw,32px); color:var(--primary);}

/* ---------- Detail page content ---------- */
/* .detail-content{padding:30px 0 96px 30%;} */
.detail-content{padding:50px 0 196px 10%;}
.detail-content .body-text{color:var(--ink-soft); font-size:15px; max-width:80ch;}
.placeholder-note{
  margin-top:18px; font-size:13px; color:var(--orange); background:var(--orange-soft);
  display:inline-block; padding:6px 12px; border-radius:8px; font-weight:500;
}
.guideline-list{margin-top:10px; display:flex; flex-direction:column; gap:10px; max-width:64ch;}
.guideline-list li{
  display:flex; gap:12px; align-items:flex-start; font-size:14.5px; color:var(--ink);
  background:var(--bg-alt); border:1px solid var(--line); border-radius:10px; padding:14px 16px;
}
.guideline-list li .n{font-family:var(--serif); font-weight:700; color:var(--orange); font-size:14px; flex-shrink:0;}

/* ---------- Footer (シンプル / メニューなし) ---------- */
footer{background:var(--primary-deep); color:#EDF1E7; padding:40px 0 26px;}
.footer-inner{
  display:flex; justify-content:space-between; align-items:center;
  gap:20px; flex-wrap:wrap; padding-bottom:24px; border-bottom:1px solid rgba(255,255,255,0.18);
}
.footer-logo{font-family:var(--serif); font-size:16px; font-weight:700;}
.footer-logo small{display:block; font-family:var(--sans); font-size:11px; letter-spacing:.12em; color:#A9C293; margin-top:4px; font-weight:500;}
.footer-top-link{font-size:13px; font-weight:700; color:#EDF1E7; opacity:.9;}
.footer-top-link:hover{opacity:1; color:var(--orange);}
.footer-bottom{padding-top:18px; font-size:12px; color:#A9C293;}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease;}
.reveal.is-visible{opacity:1; transform:none;}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1; transform:none; transition:none;}}