/* ノワールの秘めごとSeries: ワインレッド〜ブラウン / ベージュ文字 / Kaisei Decol
   モバイルファースト。960px以上でPC表示(左に目次を固定)。カード型・ピル型ボタンのEC誘導ブログ風 */
:root{--wine:#5b1425;--wine2:#7b2036;--brown:#3a2415;--ink:#2a0f14;--beige:#f3e6cf;--gold:#e9c9a0;
  --card:rgba(255,240,220,.07);--card2:rgba(0,0,0,.24);--line:rgba(243,230,207,.22);--r:20px;--shadow:0 10px 30px rgba(0,0,0,.28);--stick:12px}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"Kaisei Decol","Hiragino Mincho ProN","Yu Mincho",serif;font-size:16px;line-height:1.85;color:var(--beige);min-height:100vh;
  background-color:#4a1a1d;
  background-image:radial-gradient(900px 520px at 90% -8%,rgba(233,201,160,.16),transparent 62%),radial-gradient(760px 560px at -12% 28%,rgba(123,32,54,.6),transparent 62%),linear-gradient(165deg,#5b1425 0%,#4a1a1d 45%,#3a2415 100%);
  background-attachment:fixed}
a{color:var(--gold);text-underline-offset:3px}
a:focus-visible,button:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:8px}
img{max-width:100%;height:auto}
.wrap{max-width:720px;margin:0 auto;padding:0 16px}
.poc-banner{background:rgba(0,0,0,.4);border-bottom:1px solid var(--line);font-size:.75rem;text-align:center;padding:6px 12px;color:var(--gold)}

/* ヒーロー */
header.top{padding:28px 0 20px;text-align:center}
header.top>.wrap{display:flex;flex-direction:column;align-items:center;gap:18px}
.collab{display:inline-block;padding:0;border:0;background:none;font-size:calc(.82rem + 5px);letter-spacing:.12em;color:var(--beige)}
.logo{display:block;margin:0;width:min(94%,480px);height:auto;background:#fffaf2;border-radius:var(--r);padding:14px 18px;box-shadow:0 14px 40px rgba(0,0,0,.4)}
.hero-pic{display:block;width:100%;max-width:1100px}
.hero{display:block;width:100%;max-width:1100px;height:auto;margin:0 auto;border-radius:var(--r);box-shadow:0 14px 40px rgba(0,0,0,.4)}
.titles{display:flex;flex-direction:column;align-items:center;gap:10px}
header.top h1{font-size:clamp(1.35rem,6.2vw,1.95rem);margin:0;line-height:1.4;letter-spacing:.06em;font-weight:700}
header.top p{margin:0}

/* カテゴリのチップ(スマホ: 上に固定して横スクロール) */
.chips{position:sticky;top:0;z-index:20;display:flex;gap:8px;overflow-x:auto;padding:10px 16px;background:rgba(58,18,26,.84);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chips a{flex:none;display:inline-flex;align-items:center;min-height:40px;padding:6px 15px;border-radius:999px;border:1px solid var(--line);background:rgba(255,240,220,.06);color:var(--beige);text-decoration:none;font-size:.88rem;white-space:nowrap}
.chips a.on{background:var(--beige);border-color:var(--beige);color:var(--wine);font-weight:700}

/* カード共通 */
.intro,.toc-box,nav.pages,section.item{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.closed-banner{background:#7a1c1c;border:1px solid #d9a0a0;border-radius:14px;padding:12px 16px;margin:20px 0 0;font-weight:700;text-align:center}

/* コラボ概要 */
.intro{padding:6px 18px 20px;margin:20px 0}
.intro h2.sec-title,h2.qa-title,h2.grp-title{display:flex;align-items:center;gap:12px;font-size:1.22rem;line-height:1.5}
.intro h2.sec-title::before,h2.qa-title::before,h2.grp-title::before{content:"";flex:none;width:9px;height:9px;background:var(--gold);transform:rotate(45deg)}
.intro h2.sec-title::after,h2.grp-title::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--line),transparent)}
.intro h2.sec-title{margin:22px 0 8px}
.intro h3{font-size:1.05rem;margin:18px 0 4px;color:var(--gold)}
.intro h4{font-size:1rem;margin:12px 0 0}
.intro p{margin:4px 0}
.note{font-size:.86rem;opacity:.9}

/* ボタン */
.btn,.cta{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:12px 24px;border-radius:999px;text-decoration:none;text-align:center;line-height:1.4;
  background:linear-gradient(180deg,#fbf1df,#e9c9a0);color:#4a1220;font-weight:700;box-shadow:0 6px 18px rgba(0,0,0,.3),inset 0 1px 0 rgba(255,255,255,.65);transition:transform .15s,filter .15s}
.btn{margin:10px 0}
.btn:hover,a.cta:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn:active,a.cta:active{transform:scale(.98)}
.cta b{font-weight:700}.cta i{font-style:normal}
.cta .lb{display:flex;flex-direction:column;align-items:center;gap:2px;line-height:1.3}
.cta .price{font-size:.8rem;font-weight:700;opacity:.9;white-space:nowrap}
.cta.off{background:none;border:1px dashed var(--line);color:var(--beige);box-shadow:none}
.cta.off b{font-weight:500;opacity:.85}
.cta.off small{font-size:.76rem;padding:2px 10px;border-radius:999px;background:rgba(0,0,0,.35)}
.cta.sm{min-height:40px;padding:6px 14px;font-size:.85rem;box-shadow:none}
.btns{display:grid;gap:10px}

/* 目次(スマホ: ピルを折り返して並べる) */
h2.qa-title{justify-content:center;margin:30px 0 14px;padding:12px 34px;font-size:clamp(.95rem,4.1vw,1.22rem);text-align:center;border:1px solid var(--gold);border-radius:999px;
  background:linear-gradient(180deg,rgba(233,201,160,.16),rgba(0,0,0,.2));box-shadow:inset 0 0 0 4px rgba(0,0,0,.18),inset 0 0 0 5px rgba(233,201,160,.35);position:relative;letter-spacing:.06em}
h2.qa-title::before,h2.qa-title::after{content:"❦";position:absolute;top:50%;transform:translateY(-50%);width:auto;height:auto;background:none;color:var(--gold);font-size:1.2rem}
h2.qa-title::before{left:12px;transform:translateY(-50%) scaleX(-1)}h2.qa-title::after{right:12px;flex:none}
.toc-box{padding:8px 16px 16px;margin:0 0 8px;scroll-margin-top:var(--stick)}
.toc-box>h2{font-size:.95rem;margin:8px 0 0;color:var(--gold);letter-spacing:.3em}
.toc-box>h2::before{content:"◆";margin-right:.4em;letter-spacing:0}
ul.toc,ul.toc ul,nav.pages ul{margin:0;padding:0;list-style:none}
ul.toc>li.grp>span{display:block;font-weight:700;margin-top:14px;font-size:calc(.9rem + 2px);color:var(--gold);letter-spacing:.08em}
ul.toc ul{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
ul.toc ul a{display:inline-flex;align-items:center;min-height:40px;padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(0,0,0,.2);color:var(--beige);text-decoration:none;font-size:.9rem;line-height:1.4}
ul.toc ul a:hover,ul.toc ul a.on{background:rgba(243,230,207,.14);border-color:var(--gold)}
.side-cta{display:none}
nav.pages{padding:12px 16px;margin:16px 0}
nav.pages a{display:block;padding:10px 4px;min-height:44px;color:var(--beige);text-decoration:none;border-bottom:1px dashed var(--line)}

/* 大見出し・商品カード */
h2.grp-title{margin:44px 0 14px;font-size:1.3rem;scroll-margin-top:var(--stick)}
section.item{padding:18px 16px 12px;margin:0 0 16px;scroll-margin-top:var(--stick)}
.eyebrow{margin:0;font-size:.72rem;letter-spacing:.18em;color:var(--gold);opacity:.9}
section.item h3{font-size:1.25rem;margin:0 0 12px;line-height:1.5}
.lbl{margin:10px 0 8px;font-size:.8rem;font-weight:700;letter-spacing:.08em;color:var(--gold)}
.buy{margin:0 0 16px}
.all{margin:0;padding:0;list-style:none}
.all>li{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;padding:10px 0;border-bottom:1px dashed var(--line)}
.all .nm{flex:1 1 160px;overflow-wrap:anywhere}
.all .btns{display:flex;flex-wrap:wrap;gap:6px}
.qlist{margin:0 0 16px;padding:0 14px;background:var(--card2);border-radius:14px;border:1px solid var(--line)}
.qlist>summary{display:flex;align-items:center;gap:8px;min-height:48px;cursor:pointer;list-style:none;font-weight:700;color:var(--gold)}
.qlist>summary::-webkit-details-marker{display:none}
.qlist>summary::after{content:"▾";margin-left:auto;transition:transform .2s}
.qlist[open]>summary::after{transform:rotate(180deg)}
.qlist>summary small{font-weight:400;color:var(--beige);opacity:.8;font-size:.78rem}
.qlist[open]{padding-bottom:6px}
.qlist ul{margin:0;padding:0;list-style:none}
.qlist li+li{border-top:1px dotted var(--line)}
.qlist a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 2px;min-height:44px;color:var(--beige);text-decoration:none;overflow-wrap:anywhere}
.qlist a::after{content:"›";flex:none;color:var(--gold);font-size:1.2rem}
.posts{display:flex;flex-direction:column;align-items:center}
.x{width:100%;min-height:120px;display:flex;justify-content:center;align-items:center;margin-bottom:12px}
.x>a{display:inline-flex;align-items:center;min-height:44px;padding:8px 18px;border-radius:999px;border:1px solid var(--line);text-decoration:none;font-size:.9rem}
.x .twitter-tweet{margin:0 auto!important}
article.qa{width:100%;background:rgba(255,240,220,.06);border:1px solid rgba(233,201,160,.55);border-radius:16px;padding:16px 16px 8px;margin:0 0 18px;scroll-margin-top:var(--stick);box-shadow:inset 0 0 0 1px rgba(0,0,0,.15)}
article.qa .qp{border-top:1px dashed var(--line);padding-top:12px}
article.qa h4.q{display:flex;align-items:flex-start;gap:10px;margin:0 0 10px;font-size:1.03rem;line-height:1.65;overflow-wrap:anywhere}
.ans{display:flex;align-items:flex-start;gap:10px;margin:0 0 12px;overflow-wrap:anywhere}
.q>span:last-child,.ans>div{flex:1;min-width:0}
.mk{flex:none;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--beige);color:var(--wine);font-size:.82rem;font-weight:700;line-height:1}
.ans .mk{background:var(--wine2);color:var(--beige);border:1px solid var(--gold)}
.qp{display:flex;flex-direction:column;align-items:center;margin-top:4px}
figure.im{margin:0 0 14px;width:100%;text-align:center}
figure.im img{display:block;margin:0 auto;max-width:100%;height:auto;border-radius:14px;border:1px solid var(--line)}
figure.im figcaption{margin-top:6px;font-size:.86rem;opacity:.9}
.em{width:100%;display:flex;flex-direction:column;align-items:center;gap:6px;margin-bottom:14px}
.em-link{display:inline-flex;align-items:center;min-height:40px;padding:6px 16px;border-radius:999px;border:1px solid var(--line);text-decoration:none;font-size:.85rem}
.yt-thumb,.yt-frame{position:relative;display:block;width:100%;max-width:560px;aspect-ratio:16/9;border:0;border-radius:14px;overflow:hidden;background:#000}
.em-yt.short .yt-thumb,.em-yt.short .yt-frame{max-width:320px;aspect-ratio:9/16}
.yt-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.play{position:absolute;inset:0;margin:auto;width:68px;height:48px;border-radius:14px;background:rgba(200,0,0,.9)}
.play::after{content:"";position:absolute;left:27px;top:14px;border-style:solid;border-width:10px 0 10px 18px;border-color:transparent transparent transparent #fff}
.tt-frame{width:100%;max-width:325px;height:740px;border:0;border-radius:14px;background:#000}
.em-ig .instagram-media{margin:0 auto!important;min-width:0!important;width:100%!important;max-width:540px!important}
.site-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:0 0 18px}
.site-nav a{display:inline-flex;align-items:center;min-height:40px;padding:6px 14px;border-radius:999px;border:1px solid var(--line);color:var(--beige);text-decoration:none;font-size:.85rem}
.closed-banner.archived{background:rgba(0,0,0,.35);border-color:var(--gold);font-weight:500}
.closed-banner a{color:var(--gold)}
.avatar{width:132px;height:132px;object-fit:cover;border-radius:50%;border:3px solid var(--gold);box-shadow:var(--shadow)}
.role{color:var(--gold);letter-spacing:.08em}
.links{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0 4px}
.btn.ghost{background:none;color:var(--beige);border:1px solid var(--gold);box-shadow:none;margin:0}
.collab-cards{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));margin:0 0 20px}
.collab-card{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border-radius:var(--r);border:1px solid var(--line);background:var(--card);color:var(--beige);text-decoration:none;box-shadow:var(--shadow)}
.collab-card small{color:var(--gold);font-size:.75rem;letter-spacing:.08em}.collab-card b{font-size:1.05rem}.collab-card span{font-size:.82rem;opacity:.85}
.collab-card:hover{border-color:var(--gold)}
.cform{display:grid;gap:16px;margin-top:14px}
.cf-row{display:grid;gap:6px;margin:0;padding:0;border:0;min-width:0}
.cf-row>label,.cf-row>legend{font-weight:700;padding:0}
.cf-row .req{margin-left:8px;padding:1px 8px;border-radius:999px;background:var(--wine2);border:1px solid var(--gold);color:var(--beige);font-size:.7rem;vertical-align:middle}
.cf-help{opacity:.85}
.cform input[type=text],.cform input[type=email],.cform textarea,.cform select{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:rgba(0,0,0,.25);color:var(--beige);font:inherit;font-size:16px}
.cform input:focus,.cform textarea:focus,.cform select:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(233,201,160,.25)}
.cform select option{color:#2a0f14}
.cf-opts{display:grid;gap:8px}.cf-scale .cf-opts{grid-template-columns:repeat(auto-fit,minmax(48px,1fr))}
.cf-opt{display:flex;align-items:center;gap:10px;min-height:44px;padding:8px 14px;border-radius:12px;border:1px solid var(--line);background:rgba(0,0,0,.18);cursor:pointer}
.cf-opt input{accent-color:var(--gold);width:18px;height:18px;margin:0}
.cf-opt:has(input:checked){border-color:var(--gold);background:rgba(233,201,160,.12)}
.cform .cta{justify-self:start;min-width:200px}.cform .cta[disabled]{opacity:.6}
.cf-note,.cf-alt{font-size:.8rem;opacity:.8;margin:0}
.cf-done{margin-top:14px;padding:18px;border-radius:14px;border:1px solid var(--gold);background:rgba(233,201,160,.1);text-align:center}
.cf-done b{font-size:1.1rem}.cf-done p{margin:6px 0 0}
.gform{display:block;width:100%;height:900px;border:0;border-radius:14px;background:#fff;margin-top:16px}
.empty{margin:4px 0 10px;font-size:.88rem;text-align:center;width:100%;color:var(--gold);opacity:.85}
.back{text-align:right;margin:2px 0 0;font-size:.85rem;width:100%}
.back a{display:inline-flex;align-items:center;min-height:40px;padding:4px 12px;text-decoration:none}
.hit{animation:hit 1.6s ease-out}
@keyframes hit{0%{box-shadow:0 0 0 3px var(--gold)}100%{box-shadow:0 0 0 3px transparent}}
.rv{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.rv.in{opacity:1;transform:none}

/* フッターと、スマホ下部に固定する購入バー */
footer{padding:32px 0 128px;text-align:center;font-size:.85rem}
footer p{margin:2px 0;opacity:.9}
.share{display:inline-flex;align-items:center;min-height:44px;margin:0 0 16px;padding:8px 20px;border-radius:999px;border:1px solid var(--gold);text-decoration:none;font-size:.9rem}
.cta-bar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;gap:10px;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(42,15,20,.88);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-top:1px solid var(--line)}
.cta-bar .toc-btn{flex:none;display:grid;place-items:center;min-width:68px;min-height:48px;border-radius:999px;border:1px solid var(--line);color:var(--beige);text-decoration:none;font-size:.9rem}
.cta-bar .cta{flex:1;min-height:48px;padding:8px 16px;font-size:.95rem}

/* タブレット */
@media (min-width:600px){
  body{font-size:17px}
  .wrap{max-width:780px;padding:0 24px}
  .chips{justify-content:center}
  .btns{grid-template-columns:repeat(auto-fit,minmax(220px,max-content))}
  section.item{padding:24px 24px 14px}
}
/* PC: 目次を左に固定、本文を右に広く。チップと下部バーは出さない */
@media (min-width:960px){
  :root{--stick:20px}
  .wrap{max-width:1180px;padding:0 32px}
  header.top{padding:52px 0 32px}
  header.top>.wrap{gap:24px}
  .collab{font-size:calc(.95rem + 5px)}
  .logo{width:540px;padding:18px 24px}
  header.top h1{font-size:2.3rem}
  .chips,.cta-bar{display:none}
  main{display:grid;grid-template-columns:300px minmax(0,1fr);column-gap:44px;align-items:start}
  main>*{grid-column:2}
  body.no-toc main,main:has(>.toc-area:empty){display:block;max-width:880px;margin:0 auto}
  body.no-toc .toc-area,.toc-area:empty{display:none}
  main>.toc-area{grid-column:1;grid-row:1/span 999;position:sticky;top:16px;max-height:calc(100vh - 32px);overflow:auto;align-self:start;padding:0 6px 8px 0;scrollbar-width:thin;scrollbar-color:rgba(243,230,207,.3) transparent;display:flex;flex-direction:column}
  .toc-area h2.qa-title{order:-2}
  .toc-area h2.qa-title{font-size:.88rem;margin:0 0 12px;padding:10px 26px;letter-spacing:.02em}
  .toc-area h2.qa-title::before{left:8px}.toc-area h2.qa-title::after{right:8px}
  .toc-box{padding:6px 14px 14px}
  ul.toc ul{display:block;margin-top:4px}
  ul.toc>li.grp>span{margin-top:10px}
  ul.toc ul a{display:block;min-height:0;padding:4px 12px;border:0;border-left:2px solid var(--line);border-radius:0;background:none;font-size:.9rem}
  ul.toc ul a:hover,ul.toc ul a.on{background:rgba(243,230,207,.09);border-left-color:var(--gold);color:var(--gold)}
  .side-cta{display:block;order:-1;margin:0 0 14px}
  .side-cta .cta{width:100%}
  .back{display:none}
  .intro{padding:8px 30px 26px;margin-top:0}
  h2.grp-title{font-size:1.45rem;margin-top:52px}
  section.item{padding:28px 30px 22px;margin-bottom:20px}
  section.item h3{font-size:1.4rem}
  .x{max-width:560px}
  article.qa{padding:20px 22px 8px}
  footer{padding-bottom:48px}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}.rv{opacity:1;transform:none}}