/* =========================================================
   事例一覧「ビフォー／アフターの紙面」（案Bベースの完成版）
   ・すべて .case-b の内側に限定（共通ヘッダー・フッターに影響させない）
   ・CSSで初期非表示にする指定は置かない（JS無効・reduced-motion でも全要素が見える）
   ========================================================= */
.case-b{
  --blue:#479CD9;
  --deep:#1E5F8C;
  --ink:#10161b;
  --muted:#4b5a63;
  --line:#cddce8;
  --paper:#f8fbfd;
  --rule:rgba(16,22,27,.9);
  --hair:rgba(16,22,27,.16);
  --sky:#a9d6f5;
  --en:'Barlow Condensed','Noto Sans JP',sans-serif;
  --ja:'Noto Sans JP',sans-serif;
  /* 共通ヘッダーのいまの高さ（スクロールで縮むと自動で追従） */
  --header-h:var(--na-hh, 74px);
  display:block;margin:0;
  font-family:var(--ja);font-size:16px;font-weight:400;line-height:1.85;letter-spacing:normal;
  color:var(--ink);background:#fff;
  overflow-x:clip;
  -webkit-font-smoothing:antialiased;
}
.case-b,.case-b *,.case-b *::before,.case-b *::after{box-sizing:border-box}
.case-b :where(h1,h2,h3,p,ul,ol,li,figure,figcaption,blockquote){margin:0}
/* site.css の h1/h2/h3（色・書体・字間）を打ち消す */
.case-b h1,.case-b h2,.case-b h3{color:inherit;font-family:inherit;font-weight:900;letter-spacing:normal}
.case-b ul,.case-b ol{padding:0;list-style:none}
.case-b a{color:inherit;text-decoration:none}
.case-b svg{display:block}
.case-b img{max-width:100%}
.case-b img.is-missing{visibility:hidden}
.case-b [hidden]{display:none !important}
.case-b .cb-wrap{width:min(1200px, 100% - 48px);margin-inline:auto}
.case-b .kp{word-break:keep-all;overflow-wrap:anywhere}
@supports (word-break:auto-phrase){ .case-b .ap{word-break:auto-phrase} }
.case-b .cb-ln{display:block;overflow:hidden;padding-bottom:.08em;margin-bottom:-.08em}
.case-b .cb-ln-in{display:block}
.case-b .cb-rule{display:block;height:2px;background:var(--rule);transform-origin:0 50%}

/* ---------- ボタン ---------- */
.case-b .cb-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:12px;
  min-height:58px;padding:14px 28px;border-radius:999px;
  font-weight:700;font-size:16px;line-height:1.4;text-align:center;
  transition:transform .2s, box-shadow .2s, background-color .2s, color .2s;
}
.case-b .cb-btn .arr{display:inline-block;font-family:var(--en);font-weight:800;font-size:1.15em;line-height:1;transition:transform .2s}
.case-b .cb-btn:hover .arr{transform:translateX(4px)}
.case-b .cb-btn--deep{background:var(--deep);color:#fff;box-shadow:0 12px 26px -14px rgba(30,95,140,.8)}
.case-b .cb-btn--deep:hover{background:#174e75;transform:translateY(-2px)}
.case-b .cb-btn--outline{border:1.5px solid var(--ink);color:var(--ink);background:#fff;font-size:15px}
.case-b .cb-btn--outline:hover{background:var(--paper)}
.case-b .cb-btn--white{background:#fff;color:var(--deep);box-shadow:0 10px 30px rgba(8,28,46,.25)}
.case-b .cb-btn--white:hover{transform:translateY(-2px)}
.case-b .cb-btn--line{border:1.5px solid rgba(255,255,255,.9);color:#fff;font-size:15px}
.case-b .cb-btn--line:hover{background:rgba(255,255,255,.12)}
.case-b .cb-btn:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.case-b .cb-btn svg{flex:0 0 20px;width:20px;height:20px}

/* ---------- 共通の見出し ---------- */
.case-b .cb-label{display:flex;align-items:center;gap:12px;font-family:var(--en);font-weight:700;font-size:14px;line-height:1.4;letter-spacing:.26em;color:var(--deep)}
.case-b .cb-label i{font-style:normal;color:var(--blue)}
.case-b .cb-label::after{content:"";flex:1 1 auto;height:1px;background:var(--hair)}
.case-b .cb-h2{margin-top:18px;font-weight:900;font-size:clamp(28px, 2.6vw + 6px, 44px);line-height:1.4;letter-spacing:.02em}
.case-b .cb-text{font-size:16px;line-height:2;color:var(--muted)}

/* ---------- 01 ヒーロー（紙面の表紙＋目次） ---------- */
.case-b .cb-hero{padding:24px 0 clamp(64px, 8vw, 104px);background:#fff}
.case-b .cb-masthead{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;
  padding:12px 0 11px;
  font-family:var(--en);font-weight:700;font-size:13px;line-height:1.4;letter-spacing:.26em;color:var(--ink);
}
.case-b .cb-masthead span:nth-child(2){text-align:center;color:var(--deep);font-family:var(--ja);letter-spacing:.3em}
.case-b .cb-masthead span:last-child{text-align:right;color:var(--muted)}
.case-b .cb-hero-in{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);column-gap:clamp(40px, 5vw, 72px);align-items:start;margin-top:clamp(36px, 4.4vw, 60px)}
.case-b .cb-hero-ey{display:flex;align-items:center;gap:14px;font-family:var(--en);font-weight:800;font-size:15px;letter-spacing:.28em;color:var(--deep);line-height:1.4}
.case-b .cb-hero-ey b{display:inline-grid;place-items:center;min-width:34px;height:34px;padding:0 6px;border-radius:50%;background:var(--deep);color:#fff;font-size:13px;letter-spacing:.04em}
.case-b .cb-hero h1{margin-top:22px;font-size:clamp(31px, 2.6vw + 9px, 52px);line-height:1.34;letter-spacing:.02em}
.case-b .cb-hero h1 .cb-blue{color:var(--deep)}
.case-b .cb-hero-lead{margin-top:24px;max-width:30em;font-size:16px;font-weight:500;line-height:2;color:#2c3a44}
.case-b .cb-hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
/* 目次 */
.case-b .cb-toc{border-top:2px solid var(--rule)}
.case-b .cb-toc-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:14px 0 12px;border-bottom:1px solid var(--hair);font-family:var(--en);font-weight:700;font-size:13px;letter-spacing:.26em}
.case-b .cb-toc-head span:last-child{font-family:var(--ja);font-size:12.5px;letter-spacing:.06em;color:var(--muted)}
.case-b .cb-toc li{border-bottom:1px solid var(--hair);transition:opacity .3s}
.case-b .cb-toc li.is-off{opacity:.32}
.case-b .cb-toc a{display:grid;grid-template-columns:52px minmax(0,1fr) 24px;align-items:center;column-gap:16px;padding:14px 0;transition:background-color .2s}
.case-b .cb-toc a:hover{background:var(--paper)}
.case-b .cb-toc a:focus-visible{outline:2px solid var(--blue);outline-offset:2px}
.case-b .cb-toc-no{font-family:var(--en);font-weight:900;font-size:30px;line-height:1;color:var(--blue)}
.case-b .cb-toc-ind{display:block;font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--muted);line-height:1.5}
.case-b .cb-toc-t{display:block;margin-top:2px;font-size:15.5px;font-weight:700;line-height:1.55}
.case-b .cb-toc-arr{font-family:var(--en);font-weight:800;font-size:18px;color:var(--deep);transition:transform .2s}
.case-b .cb-toc a:hover .cb-toc-arr{transform:translateY(3px)}

/* ---------- 絞り込みバー ---------- */
.case-b .cb-filter{
  position:sticky;top:var(--header-h);z-index:6;
  background:rgba(255,255,255,.96);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-top:2px solid var(--rule);border-bottom:1px solid var(--hair);
}
.case-b .cb-filter-in{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px 24px;padding:12px 0}
.case-b .cb-filter-main{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;min-width:0}
.case-b .cb-filter-k{font-family:var(--en);font-weight:700;font-size:13px;letter-spacing:.22em;color:var(--deep);white-space:nowrap}
.case-b .cb-filter-k span{font-family:var(--ja);letter-spacing:.06em;color:var(--ink);margin-left:8px}
.case-b .cb-fbtns{display:flex;flex-wrap:wrap;gap:6px}
.case-b .cb-fbtn{
  appearance:none;cursor:pointer;min-height:40px;padding:7px 14px;
  border:1px solid var(--ink);border-radius:999px;background:#fff;
  font:inherit;font-size:13.5px;font-weight:700;line-height:1.4;color:var(--ink);
  transition:background-color .2s, color .2s, border-color .2s;
}
.case-b .cb-fbtn:hover{background:var(--paper)}
.case-b .cb-fbtn[aria-pressed="true"]{background:var(--deep);border-color:var(--deep);color:#fff}
.case-b .cb-fbtn:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.case-b .cb-count{display:flex;align-items:baseline;gap:6px;font-size:13px;font-weight:700;color:var(--muted);white-space:nowrap}
.case-b .cb-count b{font-family:var(--en);font-weight:900;font-size:30px;line-height:1;color:var(--deep);font-variant-numeric:tabular-nums}

/* ---------- 02 事例の見開き ---------- */
.case-b .cb-cases{padding:clamp(56px, 7vw, 96px) 0 clamp(80px, 10vw, 128px);background:var(--paper)}
.case-b .cb-cases-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:64px;align-items:end;margin-bottom:clamp(40px, 5vw, 64px)}
.case-b .cb-legend{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;font-size:13.5px;font-weight:700;line-height:1.5}
.case-b .cb-legend li{display:flex;align-items:center;gap:8px}
.case-b .cb-legend b{font-family:var(--en);font-weight:900;font-size:22px;line-height:1;color:var(--blue)}
.case-b .cb-legend .to{font-family:var(--en);font-weight:800;color:var(--muted)}
.case-b .cb-cases-head .cb-text{margin-top:14px}
.case-b .cb-list{display:grid;gap:clamp(40px, 5vw, 64px)}
.case-b .cb-spread{
  position:relative;background:#fff;border:1px solid var(--hair);
  box-shadow:0 30px 60px -44px rgba(16,22,27,.35);
  padding:clamp(22px, 3vw, 36px) clamp(22px, 3.4vw, 44px) clamp(26px, 3.4vw, 40px);
  scroll-margin-top:calc(var(--header-h) + 90px);
}
/* 柱（フォリオ） */
.case-b .cb-folio{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:baseline;column-gap:20px;padding-bottom:12px}
.case-b .cb-folio-no{font-family:var(--en);font-weight:900;font-size:clamp(34px, 3vw, 44px);line-height:.9;color:var(--deep);letter-spacing:.02em}
.case-b .cb-folio-no small{font-size:.42em;letter-spacing:.24em;color:var(--ink);margin-right:8px;vertical-align:.5em}
.case-b .cb-folio-ind{font-size:14px;font-weight:700;line-height:1.5}
.case-b .cb-tags{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:6px}
.case-b .cb-tags li{padding:3px 10px;border:1px solid var(--line);border-radius:999px;background:var(--paper);font-size:12px;font-weight:700;line-height:1.6;color:var(--deep);transition:background-color .25s, color .25s, border-color .25s}
.case-b .cb-tags li.is-hit{background:var(--deep);border-color:var(--deep);color:#fff}
/* 見開き本体 */
.case-b .cb-body{display:grid;grid-template-columns:minmax(0,5fr) 56px minmax(0,7fr);margin-top:clamp(22px, 2.6vw, 32px)}
.case-b .cb-page-l{display:flex;flex-direction:column;min-width:0}
.case-b .cb-cat{display:inline-flex;align-self:flex-start;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--deep);letter-spacing:.04em}
.case-b .cb-cat::before{content:"";width:18px;height:2px;background:var(--blue)}
.case-b .cb-title{margin-top:12px;font-size:clamp(23px, 1.3vw + 12px, 31px);line-height:1.45;letter-spacing:.02em}
.case-b .cb-figure{margin-top:auto;padding-top:28px}
.case-b .cb-figure-in{max-width:360px}
.case-b .cb-figcap{display:flex;gap:12px;align-items:baseline;margin-top:12px;font-size:12.5px;line-height:1.6;color:var(--muted)}
.case-b .cb-figcap b{flex:0 0 auto;font-family:var(--en);font-weight:800;font-size:12px;letter-spacing:.16em;color:var(--ink)}
.case-b .cb-read{
  display:inline-flex;align-self:flex-start;align-items:center;gap:12px;margin-top:22px;padding:4px 0;
  border-bottom:2px solid var(--ink);font-size:15px;font-weight:700;line-height:1.6;transition:color .2s, border-color .2s;
}
.case-b .cb-read .arr{font-family:var(--en);font-weight:800;font-size:18px;transition:transform .2s}
.case-b .cb-read:hover{color:var(--deep);border-color:var(--deep)}
.case-b .cb-read:hover .arr{transform:translateX(4px)}
.case-b .cb-read:focus-visible{outline:2px solid var(--blue);outline-offset:4px}
/* のど */
.case-b .cb-fold{position:relative}
.case-b .cb-fold::before{content:"";position:absolute;top:0;bottom:0;left:50%;width:1px;background:linear-gradient(to bottom, transparent 0, var(--hair) 8%, var(--hair) 92%, transparent 100%)}
.case-b .cb-fold::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg, transparent 0%, rgba(16,22,27,.035) 50%, transparent 100%)}
/* 右ページ：課題 → 実施した改善 → お客様の声 */
.case-b .cb-steps{border-top:2px solid var(--rule)}
.case-b .cb-step{position:relative;display:grid;grid-template-columns:118px minmax(0,1fr);column-gap:22px;padding:20px 0 22px;border-bottom:1px solid var(--hair)}
.case-b .cb-step:not(:last-child){min-height:140px;padding-bottom:30px}
.case-b .cb-step:last-child{border-bottom:0;padding-bottom:0}
.case-b .cb-step-k{position:relative;display:flex;flex-direction:column;gap:4px}
.case-b .cb-step-k b{font-family:var(--en);font-weight:900;font-size:34px;line-height:.9;color:var(--blue)}
.case-b .cb-step-k span{font-size:14px;font-weight:900;line-height:1.4}
.case-b .cb-step-k small{font-family:var(--en);font-weight:700;font-size:11.5px;letter-spacing:.22em;color:var(--muted);line-height:1.4}
/* 段と段をつなぐ矢印（左の列を縦に走る） */
.case-b .cb-step:not(:last-child)::before{
  content:"";position:absolute;left:15px;top:102px;bottom:-4px;width:2px;
  background:linear-gradient(180deg, rgba(71,156,217,0) 0%, var(--blue) 40%);
}
.case-b .cb-arrow{position:absolute;left:10px;bottom:-11px;z-index:1;width:12px;height:12px;color:var(--blue);background:#fff;border-radius:50%}
.case-b .cb-issues li{position:relative;padding-left:20px;font-size:15px;font-weight:500;line-height:1.8;color:var(--muted)}
.case-b .cb-issues li::before{content:"";position:absolute;left:2px;top:.88em;width:10px;height:2px;background:#9fb3c2}
.case-b .cb-issues li + li{margin-top:4px}
.case-b .cb-did{counter-reset:did}
.case-b .cb-did li{position:relative;display:grid;grid-template-columns:30px minmax(0,1fr);font-size:15px;font-weight:700;line-height:1.75}
.case-b .cb-did li + li{margin-top:6px;padding-top:6px;border-top:1px dashed var(--line)}
.case-b .cb-did li::before{counter-increment:did;content:counter(did, decimal-leading-zero);font-family:var(--en);font-weight:800;font-size:15px;line-height:1.75;color:var(--deep)}
.case-b .cb-voice{position:relative;padding-left:44px}
.case-b .cb-voice-mark{position:absolute;left:0;top:-6px;font-family:Georgia,serif;font-weight:700;font-size:64px;line-height:1;color:var(--blue)}
.case-b .cb-voice-t{font-size:clamp(17px, .5vw + 14px, 20px);font-weight:700;line-height:1.85;letter-spacing:.02em}
.case-b .cb-voice-s{margin-top:8px;font-size:12.5px;font-weight:500;color:var(--muted)}

/* ---------- デバイスモック（小さく添える） ---------- */
.case-b .cb-dev{container-type:inline-size;position:relative}
.case-b .cb-stage{--lw:84cqw;--pw:22cqw;position:relative;padding-bottom:3cqw}
.case-b .cb-lp{position:relative;z-index:0;width:var(--lw);margin-left:6cqw}
.case-b .cb-lp-lid{
  position:relative;padding:calc(var(--lw) * .02) calc(var(--lw) * .02) calc(var(--lw) * .028);
  background:#0c0e11;border-radius:calc(var(--lw) * .03) calc(var(--lw) * .03) calc(var(--lw) * .006) calc(var(--lw) * .006);
  box-shadow:0 0 0 1px #9aa1a9, inset 0 0 0 1px #2a2f35, 0 24px 40px -24px rgba(4,16,28,.5);
}
.case-b .cb-lp-screen{position:relative;aspect-ratio:16 / 10;overflow:hidden;background:#f3efe6;border-radius:2px 2px 0 0}
.case-b .cb-lp-screen img{display:block;width:100%;height:auto}
.case-b .cb-lp-base{
  position:relative;width:114%;margin-left:-7%;height:calc(var(--lw) * .028);
  background:linear-gradient(180deg, #eef0f2 0%, #d5d9dd 40%, #a8aeb5 100%);
  border-radius:2px 2px calc(var(--lw) * .04) calc(var(--lw) * .04) / 2px 2px calc(var(--lw) * .02) calc(var(--lw) * .02);
}
.case-b .cb-sp{position:absolute;right:0;bottom:0;z-index:2;width:var(--pw)}
.case-b .cb-sp-body{position:relative;aspect-ratio:71.5 / 147;background:#0c0e11;border-radius:calc(var(--pw) * .17);box-shadow:0 0 0 1.5px #a7adb4, 0 0 0 3px #dfe2e5, 0 20px 34px -16px rgba(4,16,28,.5)}
.case-b .cb-sp-screen{position:absolute;inset:calc(var(--pw) * .04);overflow:hidden;background:#f3efe6;border-radius:calc(var(--pw) * .13)}
.case-b .cb-sp-view{position:absolute;left:0;right:0;top:calc(var(--pw) * .12);bottom:0;overflow:hidden}
.case-b .cb-sp-view img{display:block;width:100%;height:auto}

/* ---------- 03 最終CTA（青の帯） ---------- */
.case-b .cb-final{position:relative;overflow:hidden;color:#fff;background:linear-gradient(120deg, #1E5F8C 0%, #1b5783 55%, #164a70 100%);padding:clamp(80px, 9vw, 112px) 0}
.case-b .cb-final-in{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);column-gap:64px;align-items:start}
.case-b .cb-final .cb-label{color:rgba(255,255,255,.88)}
.case-b .cb-final .cb-label::after{background:rgba(255,255,255,.3)}
.case-b .cb-final .cb-h2{font-size:clamp(28px, 2.8vw + 6px, 46px);line-height:1.36}
.case-b .cb-final .cb-text{margin-top:22px;color:rgba(255,255,255,.92)}
.case-b .cb-fpoints{border-top:2px solid #fff}
.case-b .cb-fpoints li{display:grid;grid-template-columns:56px minmax(0,1fr);align-items:baseline;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.35);font-size:17px;font-weight:700;line-height:1.5}
.case-b .cb-fpoints i{font-style:normal;font-family:var(--en);font-weight:900;font-size:28px;line-height:1;color:var(--sky)}
.case-b .cb-final-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}

/* ---------- レスポンシブ ---------- */
@media (max-width: 1080px){
  .case-b .cb-body{grid-template-columns:minmax(0,5fr) 36px minmax(0,7fr)}
  .case-b .cb-step{grid-template-columns:100px minmax(0,1fr)}
}
@media (max-width: 899px){
  .case-b .cb-hero-in{grid-template-columns:minmax(0,1fr);row-gap:44px}
  .case-b .cb-cases-head{grid-template-columns:minmax(0,1fr);row-gap:18px}
  .case-b .cb-folio{grid-template-columns:auto minmax(0,1fr)}
  .case-b .cb-tags{grid-column:1 / -1;justify-content:flex-start;margin-top:10px}
  .case-b .cb-body{grid-template-columns:minmax(0,1fr)}
  .case-b .cb-fold{display:none}
  .case-b .cb-figure{order:3;padding-top:22px}
  .case-b .cb-read{order:4}
  .case-b .cb-page-r{margin-top:26px}
  .case-b .cb-final-in{grid-template-columns:minmax(0,1fr);row-gap:36px}
}
@media (max-width: 600px){
  .case-b .cb-wrap{width:calc(100% - 40px)}
  .case-b .cb-hero{padding-top:14px}
  .case-b .cb-masthead{grid-template-columns:1fr auto;font-size:11.5px;letter-spacing:.2em}
  .case-b .cb-masthead span:last-child{display:none}
  .case-b .cb-hero-in{margin-top:24px}
  .case-b .cb-hero h1{margin-top:14px;font-size:29px;line-height:1.38}
  .case-b .cb-hero-lead{margin-top:16px;font-size:15px;line-height:1.9}
  .case-b .cb-hero-actions{flex-direction:column;gap:10px;margin-top:20px}
  .case-b .cb-hero-actions .cb-btn{width:100%;min-height:54px}
  .case-b .cb-toc a{grid-template-columns:40px minmax(0,1fr) 18px;column-gap:12px;padding:12px 0}
  .case-b .cb-toc-no{font-size:26px}
  .case-b .cb-toc-t{font-size:14.5px}
  .case-b .cb-filter{position:static}
  .case-b .cb-filter-main{gap:10px}
  .case-b .cb-fbtn{font-size:13px;padding:6px 12px}
  .case-b .cb-spread{padding:20px 18px 26px}
  .case-b .cb-title{font-size:22px}
  .case-b .cb-step{grid-template-columns:minmax(0,1fr);row-gap:10px;padding:18px 0 20px}
  .case-b .cb-step:not(:last-child){min-height:0;padding-bottom:20px}
  .case-b .cb-step-k{flex-direction:row;align-items:baseline;gap:10px}
  .case-b .cb-step-k b{font-size:28px}
  .case-b .cb-step:not(:last-child)::before,
  .case-b .cb-arrow{display:none}
  .case-b .cb-issues li,.case-b .cb-did li{font-size:14.5px}
  .case-b .cb-voice{padding-left:36px}
  .case-b .cb-voice-mark{font-size:52px}
  .case-b .cb-fpoints li{font-size:16px}
  .case-b .cb-final-actions .cb-btn{width:100%}
}
@media (prefers-reduced-motion: reduce){
  .case-b .cb-toc li,.case-b .cb-toc a,.case-b .cb-tags li{transition:none}
}
/* 日本語見出しの改行：文節で折り返し、最終行が1文字にならないよう整える */ :where(h1,h2,h3){text-wrap:balance;word-break:auto-phrase} :where(h1,h2,h3) .kp, :where(h1,h2,h3).kp{word-break:auto-phrase}
/* 小さい画面での見出しの折り返し調整 */ @media (max-width:420px){#cb-final-title{font-size:min(6.6vw,27px)!important}}