:root{
  --green-900:#0f4d2a;
  --green-700:#1f7a44;
  --green-500:#3aa162;
  --green-100:#e6f3eb;
  --ink-900:#1d2421;
  --ink-700:#3a4842;
  --ink-500:#6b7a72;
  --ink-300:#c2cbc6;
  --paper:#fafcfa;
  --paper-warm:#f4f7f4;
  --line:#d8e1dc;
  --shadow:0 1px 2px rgba(15,77,42,.06),0 4px 16px rgba(15,77,42,.04);
  --radius:6px;
  --max:1080px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Hiragino Sans","Yu Gothic",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--paper);
  color:var(--ink-900);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--green-700);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

/* ------ header ------ */
.site-header{
  background:#fff;
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50;
}
.site-header__inner{
  max-width:var(--max);
  margin:0 auto;
  padding:14px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.site-logo{
  font-size:14px;font-weight:700;color:var(--green-900);
  line-height:1.4;letter-spacing:.02em;
}
.site-logo small{display:block;font-size:11px;color:var(--ink-500);font-weight:500;margin-top:2px}
.nav-toggle{
  display:none;
  background:none;border:1px solid var(--line);border-radius:4px;
  padding:6px 10px;font-size:13px;cursor:pointer;
}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{
  padding:8px 12px;font-size:13px;color:var(--ink-700);
  border-radius:4px;
}
.nav a:hover{background:var(--green-100);color:var(--green-900);text-decoration:none}
.nav a[aria-current="page"]{background:var(--green-700);color:#fff}

/* ------ hero ------ */
.hero{
  background:linear-gradient(135deg,var(--green-700),var(--green-900));
  color:#fff;
  padding:64px 24px 56px;
}
.hero__inner{max-width:var(--max);margin:0 auto}
.hero h1{
  font-size:30px;font-weight:700;margin:0 0 12px;line-height:1.4;
}
.hero p{font-size:15px;margin:0;max-width:680px;color:rgba(255,255,255,.92)}
.hero__cta{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap}
.btn{
  display:inline-block;padding:11px 22px;border-radius:4px;
  font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .1s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--primary{background:#fff;color:var(--green-900)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn--solid{background:var(--green-700);color:#fff}
.btn--solid:hover{background:var(--green-900);color:#fff}

/* ------ section / page ------ */
.page{max-width:var(--max);margin:0 auto;padding:48px 24px 80px}
.page h1{
  font-size:24px;color:var(--green-900);
  border-left:4px solid var(--green-700);padding-left:14px;
  margin:0 0 24px;line-height:1.4;
}
.page h2{
  font-size:18px;color:var(--green-900);margin:36px 0 12px;
}
.page p{margin:0 0 14px}
.lead{font-size:15px;color:var(--ink-700);margin-bottom:28px;max-width:760px}

/* card grid */
.cards{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:18px;margin:24px 0;
}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);
}
.card h3{margin:0 0 8px;font-size:15px;color:var(--green-900)}
.card p{font-size:13.5px;color:var(--ink-700);margin:0}
.card__cta{margin-top:14px;font-size:13px;font-weight:600}

/* table */
.tbl{
  width:100%;border-collapse:collapse;margin:16px 0 24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  font-size:13.5px;
}
.tbl th,.tbl td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tbl th{background:var(--green-100);color:var(--green-900);font-weight:600;width:30%}
.tbl tr:last-child th,.tbl tr:last-child td{border-bottom:none}

/* form */
.form{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow);max-width:640px;
}
.form__row{margin-bottom:16px}
.form__row label{display:block;font-size:13px;font-weight:600;color:var(--ink-900);margin-bottom:6px}
.form__row label .req{color:#c0392b;font-weight:700;margin-left:4px}
.form__row input,.form__row select,.form__row textarea{
  width:100%;padding:9px 12px;border:1px solid var(--line);border-radius:4px;
  font-size:14px;font-family:inherit;background:var(--paper);
}
.form__row input:focus,.form__row select:focus,.form__row textarea:focus{
  outline:2px solid var(--green-500);outline-offset:0;border-color:var(--green-500);
}
.form__row textarea{min-height:90px;resize:vertical}
.form__msg{
  margin-top:12px;padding:10px 14px;border-radius:4px;font-size:13px;display:none;
}
.form__msg--ok{display:block;background:var(--green-100);color:var(--green-900);border:1px solid var(--green-500)}
.form__msg--ng{display:block;background:#fdecec;color:#a13030;border:1px solid #e6a0a0}

/* news list */
.news-list{list-style:none;padding:0;margin:0}
.news-list li{
  padding:16px 0;border-bottom:1px solid var(--line);
  display:flex;gap:18px;flex-wrap:wrap;align-items:baseline;
}
.news-list li:last-child{border-bottom:none}
.news-list time{font-size:13px;color:var(--ink-500);min-width:96px;font-feature-settings:"tnum"}
.news-list .tag{
  display:inline-block;background:var(--green-100);color:var(--green-900);
  padding:2px 8px;border-radius:3px;font-size:12px;font-weight:600;margin-right:6px;
}
.news-list h3{margin:0;font-size:14.5px;font-weight:600;color:var(--ink-900);flex:1;min-width:200px}

/* download list */
.dl-list{list-style:none;padding:0;margin:18px 0}
.dl-list li{
  padding:14px 16px;border:1px solid var(--line);border-radius:4px;background:#fff;
  margin-bottom:10px;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
}
.dl-list .meta{font-size:12.5px;color:var(--ink-500)}

/* footer */
.site-footer{
  background:var(--paper-warm);border-top:1px solid var(--line);
  margin-top:64px;padding:32px 24px;
}
.site-footer__inner{
  max-width:var(--max);margin:0 auto;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:18px;
  font-size:12.5px;color:var(--ink-500);
}
.site-footer a{color:var(--ink-700)}

/* tablet */
@media (max-width:1024px){
  .hero{padding:48px 22px 40px}
  .hero h1{font-size:26px}
  .page{padding:40px 22px 64px}
}
/* mobile */
@media (max-width:768px){
  .nav-toggle{display:inline-block}
  .nav{
    display:none;width:100%;flex-direction:column;gap:0;
    border-top:1px solid var(--line);margin-top:12px;padding-top:6px;
  }
  .nav.is-open{display:flex}
  .nav a{padding:11px 4px;border-radius:0;border-bottom:1px solid var(--line)}
  .nav a[aria-current="page"]{background:transparent;color:var(--green-900);font-weight:700}
  .site-header__inner{flex-wrap:wrap}
  .hero{padding:40px 18px 36px}
  .hero h1{font-size:22px}
  .hero p{font-size:14px}
  .page{padding:32px 18px 56px}
  .page h1{font-size:20px}
  .form{padding:20px}
  .news-list time{min-width:auto}
}

/* ====== 控えめなフェードイン（スクロールで浮き上がる）2026-06-13 説原 ====== */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .55s ease,transform .55s ease}
.reveal.is-visible{opacity:1;transform:none}
/* カード・ダウンロード行の滑らかな反応 */
.card{transition:transform .16s ease,box-shadow .16s ease}
.card:hover{transform:translateY(-2px);box-shadow:0 2px 4px rgba(15,77,42,.08),0 10px 28px rgba(15,77,42,.07)}
.dl-list li{transition:border-color .16s ease,box-shadow .16s ease}
.dl-list li:hover{border-color:var(--green-500);box-shadow:var(--shadow)}
/* 素材待ち・準備中の受け皿（一目で「ここに入る」と分かる） */
.empty-state{border:1px dashed var(--ink-300);border-radius:var(--radius);background:var(--paper-warm);padding:28px 24px;text-align:center;color:var(--ink-500);font-size:13.5px}
.empty-state strong{display:block;color:var(--ink-700);font-size:14.5px;font-weight:600;margin-bottom:4px}
.news-list__empty{color:var(--ink-500);font-size:13.5px;padding:18px 0;list-style:none;border:none}
/* 動きを減らす設定の利用者には適用しない（公共サイト配慮） */
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1 !important;transform:none !important;transition:none}
  .card:hover,.btn:hover{transform:none}
}

/* ====== 素材・画像の置き場所（準備中プレースホルダ）2026-06-13 説原 ====== */
.placeholder{
  border:1.5px dashed var(--ink-300);border-radius:var(--radius);background:var(--paper-warm);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  padding:34px 22px;margin:16px 0;min-height:150px;text-align:center;color:var(--ink-500);
}
.placeholder__icon{font-size:24px;opacity:.55;line-height:1}
.placeholder__label{font-size:14px;font-weight:600;color:var(--ink-700)}
.placeholder__note{font-size:12px;color:var(--ink-500)}
.placeholder--wide{min-height:120px}
.placeholder-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:16px 0}
.placeholder-grid .placeholder{margin:0}

/* ====== ゆとり調整（余白と文字をひろく・やわらかく）2026-06-13 説原 ====== */
:root{--radius:8px}
body{line-height:1.85}
.page h1{margin:0 0 32px}
.page h2{font-size:19px;margin:54px 0 16px}
.page p{margin:0 0 18px}
.lead{font-size:16px;line-height:1.95;margin-bottom:40px}
.cards{gap:24px;margin:32px 0}
.card{padding:28px}
.card h3{font-size:15.5px;margin-bottom:10px}
.card p{font-size:14px;line-height:1.8}
.tbl{font-size:14.5px;margin:20px 0 32px}
.tbl th,.tbl td{padding:15px 18px}
.news-list li{padding:20px 0}
.dl-list li{padding:18px 20px;margin-bottom:14px}
.placeholder{padding:44px 24px;min-height:180px}
.site-footer{margin-top:88px;padding:44px 24px}
@media (min-width:769px){
  .page{padding:72px 32px 104px}
  .hero{padding:96px 32px 84px}
  .hero h1{font-size:34px;line-height:1.5}
  .hero p{font-size:16px;line-height:1.95;max-width:720px}
  .site-header__inner{padding:18px 32px}
}