/* ===== 相談事例データベース（/casebook/）共通スタイル =====
   全国版トップ(public/index.html)の世界観に準拠：白背景＋スカイブルー発光＋枠なし線画アイコン。
   絵文字は使わない。派手にしない。清潔感・信頼感・AIらしい先進感。 */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
:root{
  --blue:#0a64e6;--blue-d:#0a4fb8;--navy:#15233c;--navy2:#1a3a63;--ink:#2a3441;--ink2:#5b6577;
  --soft:#eaf3ff;--line:#e4edf9;--radius:16px;
}
body{margin:0;font-family:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Meiryo",system-ui,sans-serif;
  font-weight:500;color:var(--ink);background:#fff;line-height:1.8;font-feature-settings:"palt" 1;letter-spacing:.01em;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
.container{max-width:1080px;margin:0 auto;padding:0 18px}

/* ===== ヘッダー ===== */
.cb-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.cb-header .inner{max-width:1080px;margin:0 auto;padding:11px 18px;display:flex;align-items:center;gap:12px}
.cb-brand{display:flex;flex-direction:column;line-height:1.2;text-decoration:none;min-width:0}
.cb-brand .b1{font-size:.62rem;font-weight:700;color:var(--ink2)}
.cb-brand .b2{font-size:.98rem;font-weight:800;color:var(--navy);white-space:nowrap}
.cb-brand .b2 .ai{color:var(--blue)}
.cb-head-cta{margin-left:auto;flex:none;display:inline-flex;align-items:center;gap:6px;background:linear-gradient(180deg,#2b8fff,#0a57cf);color:#fff;font-weight:800;font-size:.8rem;text-decoration:none;padding:9px 14px;border-radius:12px;box-shadow:0 4px 14px rgba(20,90,200,.24),0 0 0 1.5px rgba(255,255,255,.5) inset}
.cb-head-cta svg{width:15px;height:15px}

/* ===== パンくず ===== */
.crumb{font-size:.76rem;color:var(--ink2);padding:12px 0 0;line-height:1.7}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;padding:0;margin:0}
.crumb a{color:var(--blue-d);text-decoration:none;font-weight:700}
.crumb li+li::before{content:"›";margin-right:6px;color:#9fb2cc}
.crumb [aria-current]{color:var(--ink2);font-weight:700}

/* ===== セクション見出し ===== */
.sec{padding:26px 0 8px}
.page-h1{font-size:1.5rem;font-weight:800;color:var(--navy);line-height:1.45;letter-spacing:.01em;margin:14px 0 12px}
.page-h1 .ac{color:var(--blue)}
.sec-title{font-size:1.28rem;font-weight:800;color:var(--navy);line-height:1.45;margin:0 0 12px}
.sec-title .ac{color:var(--blue)}
.lead{color:var(--ink2);font-size:.95rem;line-height:1.85;margin:0 0 16px}

/* AI引用用の結論ボックス（各ページ冒頭・各H2直下の一文にも流用） */
.answer{background:linear-gradient(180deg,#f4f9ff,#eaf4ff);border:1px solid rgba(96,170,255,.4);border-radius:14px;padding:15px 16px;margin:0 0 20px;
  font-size:.92rem;font-weight:600;color:#26374f;line-height:1.85;box-shadow:0 0 0 3px rgba(150,205,255,.08)}
.answer b{color:var(--blue-d);font-weight:800}
.a-lede{font-size:.9rem;font-weight:700;color:#33455f;line-height:1.8;margin:0 0 12px}

/* ===== 注意書き・免責ボックス ===== */
.notice{background:#fbfdff;border:1px solid var(--line);border-left:3px solid #7cb6ff;border-radius:12px;padding:14px 16px;margin:0 0 20px;
  font-size:.82rem;color:var(--ink2);line-height:1.85}
.notice strong{color:var(--navy)}

/* ===== 大枠パネル ===== */
.panel{background:#fff;border:1px solid rgba(96,170,255,.5);border-radius:20px;padding:20px 16px;
  box-shadow:0 0 0 3px rgba(150,205,255,.08),0 0 20px rgba(120,190,255,.12),0 10px 28px rgba(40,100,200,.05)}

/* ===== カテゴリカード（ハブ） ===== */
.catgrid{display:grid;grid-template-columns:1fr;gap:12px}
.catcard{display:flex;align-items:flex-start;gap:13px;text-decoration:none;color:inherit;background:linear-gradient(180deg,#ffffff,#f6faff);
  border:1px solid rgba(120,165,225,.28);border-radius:16px;padding:16px 15px;transition:transform .16s ease,box-shadow .22s ease,border-color .22s ease;
  box-shadow:0 1px 2px rgba(20,55,120,.03),0 6px 16px rgba(30,80,160,.05)}
.catcard:hover{transform:translateY(-2px);border-color:rgba(70,160,255,.65);box-shadow:0 0 0 3px rgba(140,200,255,.16),0 12px 26px rgba(40,100,200,.14)}
.catcard .cic{flex:none;width:44px;height:44px;border-radius:13px;display:grid;place-items:center;color:#0a5fd0;
  background:linear-gradient(155deg,#eef6ff,#d9eaff);border:1px solid rgba(120,170,235,.34);box-shadow:inset 0 1px 0 rgba(255,255,255,.95),0 2px 7px rgba(40,95,185,.13)}
.catcard .cic svg{width:23px;height:23px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;filter:drop-shadow(0 0 2.4px rgba(90,175,255,.5))}
.catcard .ctx{flex:1;min-width:0}
.catcard .cname{display:block;font-size:1rem;font-weight:800;color:var(--navy);line-height:1.4}
.catcard .cdesc{display:block;font-size:.8rem;font-weight:500;color:var(--ink2);line-height:1.6;margin-top:3px}
.catcard .carr{flex:none;align-self:center;color:#9fb8dd}
.catcard .carr svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
@media(min-width:720px){.catgrid{grid-template-columns:1fr 1fr;gap:14px}}

/* ===== 事例アコーディオン（カテゴリページ） ===== */
.caselist{display:flex;flex-direction:column;gap:12px}
.case{border:1px solid rgba(120,165,225,.28);border-radius:15px;background:#fff;overflow:hidden;box-shadow:0 1px 2px rgba(20,55,120,.03)}
.case>summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:12px;padding:16px 15px}
.case>summary::-webkit-details-marker{display:none}
.case .cs-no{flex:none;width:27px;height:27px;border-radius:8px;display:grid;place-items:center;font-size:.8rem;font-weight:800;color:#fff;
  background:linear-gradient(160deg,#3a96ff,#0a57cc);box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 2px 6px rgba(20,80,180,.24)}
.case .cs-tt{flex:1;min-width:0;font-size:.98rem;font-weight:800;color:var(--navy);line-height:1.5}
.case .cs-tt .cs-sub{display:block;font-size:.78rem;font-weight:600;color:var(--ink2);line-height:1.6;margin-top:3px}
.case .cs-ar{flex:none;width:11px;height:11px;margin-top:8px;border-right:2px solid #7d9bca;border-bottom:2px solid #7d9bca;transform:rotate(45deg);transition:transform .22s}
.case[open] .cs-ar{transform:rotate(-135deg)}
.case-body{padding:2px 16px 18px 16px;border-top:1px solid #eef3fb}
.case-body h4{font-size:.86rem;font-weight:800;color:var(--blue-d);margin:16px 0 6px;letter-spacing:.02em}
.case-body h4:first-child{margin-top:14px}
.case-body p{font-size:.86rem;color:var(--ink);line-height:1.9;margin:0}

/* キー・バリュー箇条書き（機器・建物の状況） */
.kv{list-style:none;padding:0;margin:2px 0 0;display:grid;grid-template-columns:1fr;gap:5px}
.kv li{font-size:.84rem;line-height:1.7;color:var(--ink);padding-left:15px;position:relative}
.kv li::before{content:"";position:absolute;left:2px;top:.72em;width:5px;height:5px;border-radius:50%;background:#5aa6ff}
.kv b{color:var(--navy);font-weight:700}
@media(min-width:560px){.kv{grid-template-columns:1fr 1fr;gap:5px 18px}}

/* チェックリスト */
.checklist{list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:8px}
.checklist li{position:relative;padding-left:27px;font-size:.85rem;line-height:1.7;color:var(--ink)}
.checklist li::before{content:"";position:absolute;left:0;top:1px;width:18px;height:18px;border-radius:6px;background:#eaf4ff;border:1px solid rgba(120,170,235,.5)}
.checklist li::after{content:"";position:absolute;left:5px;top:5px;width:8px;height:5px;border-left:2px solid #0a8a3a;border-bottom:2px solid #0a8a3a;transform:rotate(-45deg)}

/* ===== 比較表 ===== */
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:14px}
.ctable{width:100%;border-collapse:collapse;font-size:.82rem;min-width:560px}
.ctable th,.ctable td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.7}
.ctable thead th{font-size:.78rem;font-weight:800;color:#0a57cf;background:#f3f9ff;white-space:nowrap;position:sticky;top:0}
.ctable tbody th{font-weight:800;color:var(--navy);white-space:nowrap;background:#fbfdff}
.ctable tbody td{color:#3a4a63;font-weight:500}
.ctable tbody tr:last-child th,.ctable tbody tr:last-child td{border-bottom:none}
.tbl-cap{font-size:.82rem;font-weight:800;color:var(--navy);margin:22px 0 8px}

/* ===== FAQ ===== */
.faq{display:flex;flex-direction:column;gap:10px}
.faq-item{border:1px solid rgba(120,165,225,.28);border-radius:13px;background:#fff;overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:10px;padding:14px 15px;font-size:.92rem;font-weight:800;color:var(--navy);line-height:1.55}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .q{flex:none;width:23px;height:23px;border-radius:6px;display:grid;place-items:center;font-size:.78rem;font-weight:800;color:#fff;background:linear-gradient(160deg,#3a96ff,#0a57cc)}
.faq-item summary .qt{flex:1;min-width:0}
.faq-item summary .qa{flex:none;width:10px;height:10px;margin-top:7px;border-right:2px solid #7d9bca;border-bottom:2px solid #7d9bca;transform:rotate(45deg);transition:transform .22s}
.faq-item[open] summary .qa{transform:rotate(-135deg)}
.faq-ans{padding:0 15px 15px 48px;font-size:.85rem;font-weight:500;color:#46566f;line-height:1.85}

/* ===== 関連リンク ===== */
.rel{display:grid;grid-template-columns:1fr;gap:10px}
.rel a{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);font-weight:700;font-size:.88rem;
  background:#fff;border:1px solid rgba(120,165,225,.28);border-radius:12px;padding:13px 14px;transition:border-color .2s,box-shadow .2s}
.rel a:hover{border-color:rgba(70,160,255,.6);box-shadow:0 6px 16px rgba(40,100,200,.1)}
.rel a .rarr{margin-left:auto;color:#9fb8dd}
.rel a .rarr svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
@media(min-width:640px){.rel{grid-template-columns:1fr 1fr}}

/* ===== CTA ===== */
.cta-band{background:linear-gradient(180deg,#eef6ff,#dcecff);border:1px solid rgba(96,170,255,.5);border-radius:20px;padding:26px 18px;text-align:center;
  box-shadow:0 0 0 3px rgba(150,205,255,.1),0 10px 30px rgba(40,100,200,.07);margin:26px 0 8px}
.cta-band h2{font-size:1.22rem;font-weight:800;color:var(--navy);margin:0 0 8px;line-height:1.45}
.cta-band p{font-size:.86rem;color:#3a4a63;line-height:1.75;margin:0 auto 16px;max-width:520px}
.cta-btn{display:inline-flex;align-items:center;gap:10px;background:linear-gradient(180deg,#2b8fff,#0a57cf);color:#fff;font-weight:800;font-size:.98rem;text-decoration:none;
  padding:14px 22px;border-radius:14px;box-shadow:0 8px 22px rgba(12,90,210,.3),0 0 0 1.5px rgba(255,255,255,.5) inset;max-width:100%}
.cta-btn .ci{width:20px;height:20px;flex:none}
.cta-btn .ci svg{width:100%;height:100%;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.cta-btn .cx{display:flex;flex-direction:column;align-items:flex-start;line-height:1.2;text-align:left}
.cta-btn .cx small{font-size:.64rem;font-weight:700;opacity:.9;margin-top:2px}
.cta-btn .car{margin-left:2px}
.cta-btn .car svg{width:16px;height:16px;stroke:#fff;fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.cta-note{font-size:.74rem;color:var(--ink2);margin:12px 0 0;line-height:1.7}

/* インラインCTA（本文中） */
.cta-inline{display:inline-flex;align-items:center;gap:8px;background:#fff;border:2px solid #7cb6ff;color:var(--blue-d);font-weight:800;font-size:.9rem;
  text-decoration:none;padding:12px 18px;border-radius:13px;box-shadow:0 0 14px 2px rgba(150,195,255,.35),0 6px 16px rgba(40,90,180,.12);margin:6px 0}
.cta-inline svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ===== 戻るボタン（上部・下部） ===== */
.backbar{margin:12px 0 2px}
.backbar a{display:inline-flex;align-items:center;gap:7px;font-size:.85rem;font-weight:800;color:var(--blue-d);text-decoration:none;background:#fff;border:1px solid rgba(96,170,255,.5);border-radius:11px;padding:9px 15px;box-shadow:0 0 0 3px rgba(150,205,255,.09),0 2px 8px rgba(40,100,200,.08);transition:transform .16s ease,box-shadow .22s ease,border-color .22s ease}
.backbar a:hover{transform:translateY(-1px);border-color:rgba(70,160,255,.8);box-shadow:0 0 0 3px rgba(140,200,255,.18),0 6px 16px rgba(40,100,200,.14)}
.backbar a svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.backlinks{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin:26px 0 4px}
.backlinks a{display:inline-flex;align-items:center;gap:8px;font-size:.9rem;font-weight:800;text-decoration:none;padding:13px 20px;border-radius:13px}
.backlinks a svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.backlinks a.bk-primary{background:linear-gradient(180deg,#2b8fff,#0a57cf);color:#fff;box-shadow:0 6px 18px rgba(12,90,210,.26),0 0 0 1.5px rgba(255,255,255,.5) inset}
.backlinks a.bk-ghost{background:#fff;color:var(--blue-d);border:2px solid #7cb6ff;box-shadow:0 0 12px 2px rgba(150,195,255,.3)}

/* ===== 出典 ===== */
.sources{font-size:.78rem;color:var(--ink2);line-height:1.85}
.sources ul{list-style:none;padding:0;margin:6px 0 0;display:flex;flex-direction:column;gap:6px}
.sources li{padding-left:14px;position:relative}
.sources li::before{content:"";position:absolute;left:2px;top:.7em;width:5px;height:5px;border-radius:50%;background:#9cc0ee}
.sources a{color:var(--blue-d);word-break:break-all}

/* ===== スマホ追従CTA ===== */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:45;display:flex;gap:9px;padding:9px 12px calc(9px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.93);backdrop-filter:blur(9px);-webkit-backdrop-filter:blur(9px);border-top:1px solid rgba(120,165,225,.32);box-shadow:0 -6px 20px rgba(30,80,160,.12)}
.sticky-cta a{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:8px;background:linear-gradient(180deg,#2b8fff,#0a57cf);color:#fff;font-weight:800;font-size:.92rem;
  text-decoration:none;padding:13px 12px;border-radius:13px;box-shadow:0 6px 16px rgba(12,90,210,.26),0 0 0 1.5px rgba(255,255,255,.5) inset}
.sticky-cta a svg{width:17px;height:17px;flex:none;stroke:#fff;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
@media(min-width:860px){.sticky-cta{display:none}}

/* ===== フッター ===== */
.cb-footer{background:#0c2a52;color:#cfe0f5;padding:28px 0 92px;margin-top:34px}
.cb-footer .container{max-width:1080px}
.cb-footer .ft-b{font-weight:800;color:#fff;font-size:.98rem;margin:0 0 10px}
.cb-footer p{margin:0 0 12px;font-size:.82rem;line-height:1.75;color:#a9c2e4}
.cb-footer nav{display:flex;flex-wrap:wrap;gap:9px 16px;margin:0 0 14px}
.cb-footer nav a{font-size:.82rem;font-weight:600;color:#cfe0f5;text-decoration:none}
.cb-footer nav a:hover{color:#fff}
.cb-footer small{font-size:.72rem;color:#7f99c0}
@media(min-width:860px){.cb-footer{padding-bottom:34px}}

/* ===== タブレット・PC ===== */
@media(min-width:860px){
  .page-h1{font-size:1.86rem}
  .sec-title{font-size:1.5rem}
  .sec{padding:34px 0 8px}
  .cta-band h2{font-size:1.5rem}
}

/* ===== 青いCTAボタン統一（全国版と共通：左アイコン・矢印なし・ラベル中央寄せ） ===== */
.cta-btn{justify-content:center}
.cta-btn .ci{display:none}
.cta-btn .car{display:none}
.cta-btn .cx{align-items:center;text-align:center}
.cb-head-cta svg{display:none}
.sticky-cta a svg{display:none}