/*
 * DAISEN つながる窓口 スタイルシート
 * daisen-connect/daisen-connect.css
 *
 * 設置場所: /daisen.life/public_html/wp-content/themes/cocoon-child-master/daisen-connect/daisen-connect.css
 */

/* ===== リセット ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
button{cursor:pointer;border:none;background:none;font-family:inherit}

/* ===== CSS 変数 ===== */
:root{
  --black:      #07070f;
  --dark:       #0e0e1a;
  --surface:    #161625;
  --surface2:   #1e1e30;
  --border:     #2a2a42;
  --border2:    #363655;
  --white:      #ffffff;
  --off-w:      #e8e8f4;
  --muted:      #8888aa;
  --gold:       #ffd700;
  --gold-dim:   rgba(255,215,0,.18);
  --gold-glow:  rgba(255,215,0,.6);
  --blue:       #00c8e6;
  --blue-soft:  rgba(0,200,230,.12);
  --site-fcs:   #00b4d8;
  --site-si:    #06d6a0;
  --site-psd:   #7209b7;
  --site-nexus: #f72585;
  --site-log:   #fb8500;
  --font-d:     'Montserrat',sans-serif;
  --font-b:     'Noto Sans JP',sans-serif;
  --ease:       cubic-bezier(0.16,1,0.3,1);
  --ease-io:    cubic-bezier(0.4,0,0.2,1);
  --dur:        0.45s;
  --radius-md:  10px;
  --radius-lg:  18px;
  --radius-xl:  28px;
  --shadow-md:  0 8px 32px rgba(0,0,0,.4);
  --shadow-lg:  0 24px 72px rgba(0,0,0,.55);
}

/* ===== Base ===== */
body.daisen-connect{
  font-family:var(--font-b);
  background:var(--black);
  color:var(--off-w);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* Cocoon のラッパーを完全非表示 */
body.daisen-connect #container,
body.daisen-connect #main,
body.daisen-connect .main-wrap,
body.daisen-connect .site-header,
body.daisen-connect #header,
body.daisen-connect .cocoon-header,
body.daisen-connect .site-footer,
body.daisen-connect #footer{
  display:none!important;
}

/* ===== 汎用ユーティリティ ===== */
.dc-container{max-width:1200px;margin:0 auto;padding:0 40px}
.dc-section{padding:96px 0}

/* スクロールリビール */
.dc-reveal{
  opacity:0;
  transform:translateY(32px);
  transition:opacity .7s var(--ease),transform .7s var(--ease);
  transition-delay:var(--delay,0s);
}
.dc-reveal.is-visible{opacity:1;transform:translateY(0)}

/* ===== セクション共通ヘッダー ===== */
.dc-section-head{text-align:center;margin-bottom:56px}
.dc-section-eyebrow{
  display:inline-block;
  font-family:var(--font-d);font-size:.62rem;font-weight:700;letter-spacing:.5em;
  color:var(--blue);margin-bottom:14px;
}
.dc-section-title{
  font-family:var(--font-d);
  font-size:clamp(1.7rem,3.5vw,2.8rem);
  font-weight:900;line-height:1.2;letter-spacing:-.02em;
  color:var(--white);margin-bottom:16px;
}
.dc-section-sub{
  font-size:.95rem;color:var(--muted);line-height:1.8;
}

/* ==================================================
   HEADER
   ================================================== */
.dc-header{
  position:fixed;top:0;left:0;right:0;z-index:9000;
  height:66px;
  background:rgba(7,7,15,.9);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .4s,box-shadow .4s;
}
.dc-header.scrolled{
  background:rgba(7,7,15,.98);
  box-shadow:0 4px 32px rgba(0,0,0,.7);
}
.dc-header__inner{
  max-width:1360px;margin:0 auto;padding:0 32px;
  height:100%;display:flex;align-items:center;gap:16px;
}
.dc-header__logo{
  display:flex;align-items:center;gap:10px;flex-shrink:0;
  font-family:var(--font-d);font-weight:900;font-size:1.1rem;letter-spacing:.14em;
  color:var(--white);
}
.dc-header__logo-img{
  width:32px;height:32px;object-fit:contain;border-radius:4px;background:transparent;
}
.dc-header__logo-mark{
  width:32px;height:32px;border-radius:7px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,#00c8e6,#0078ff);
  font-size:.88rem;font-weight:900;color:var(--black);
}
.dc-header__logo-text{font-family:var(--font-d);font-weight:900;font-size:1.1rem;letter-spacing:.14em}

.dc-header__nav{margin-left:auto;display:flex;align-items:center;gap:2px}
.dc-header__nav-item{
  font-family:var(--font-d);font-size:.7rem;font-weight:600;letter-spacing:.06em;
  color:var(--muted);padding:6px 10px;border-radius:6px;white-space:nowrap;
  transition:color .3s,background .3s;
}
.dc-header__nav-item:hover{color:var(--white);background:rgba(255,255,255,.07)}
.dc-header__nav-cta{
  margin-left:8px!important;
  padding:7px 18px!important;
  background:linear-gradient(135deg,#ffd700,#ff9f00)!important;
  color:var(--black)!important;font-weight:700!important;
  border-radius:24px!important;
  box-shadow:0 2px 16px rgba(255,215,0,.35)!important;
  transition:opacity .3s,box-shadow .3s,transform .3s!important;
  pointer-events:auto;
}
.dc-header__nav-cta:hover{
  opacity:.9!important;
  box-shadow:0 4px 24px rgba(255,215,0,.55)!important;
  transform:translateY(-1px)!important;
}
.dc-header__toggle{
  display:none;flex-direction:column;gap:5px;padding:8px;margin-left:auto;
}
.dc-header__toggle span{
  display:block;width:24px;height:2px;background:var(--white);border-radius:1px;
  transition:transform .3s,opacity .3s;
}
.dc-header__toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.dc-header__toggle.is-active span:nth-child(2){opacity:0;transform:scaleX(0)}
.dc-header__toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}


/* ==================================================
   HERO
   ================================================== */
.dc-hero{
  position:relative;width:100%;
  min-height:100vh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  overflow:hidden;
  padding:120px 24px 100px;
}
.dc-hero__bg{
  position:absolute;inset:0;
  background:linear-gradient(135deg,#000010 0%,#07071e 45%,#020c1e 100%);
  background-size:cover;background-position:center;
  filter:brightness(.55) saturate(1.2);
  transform:scale(1.05);
  animation:dcBgDrift 20s ease-in-out infinite alternate;
}
@keyframes dcBgDrift{from{transform:scale(1.05) translate(0,0)}to{transform:scale(1.10) translate(-1%,-1%)}}
.dc-hero__bg[data-cosmos="true"]{
  background:linear-gradient(135deg,#000010 0%,#07071e 45%,#020c1e 100%);
  filter:none;animation:none;
}
.dc-hero__overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(to bottom,rgba(7,7,15,.25) 0%,rgba(7,7,15,.6) 55%,rgba(7,7,15,.92) 100%);
}
.dc-hero__canvas{
  position:absolute;inset:0;z-index:2;
  width:100%;height:100%;pointer-events:none;
}
.dc-hero__content{
  position:relative;z-index:3;text-align:center;max-width:800px;
}
.dc-hero__eyebrow{
  font-family:var(--font-d);font-size:.62rem;font-weight:700;letter-spacing:.55em;
  color:var(--gold);
  margin-bottom:20px;
  opacity:0;transform:translateY(16px);
  animation:dcFadeUp .7s var(--ease) .3s forwards;
}
.dc-hero__title{
  display:flex;flex-direction:column;gap:8px;
  margin-bottom:24px;
}
.dc-hero__title-ja{
  font-family:var(--font-b);
  font-size:clamp(2.4rem,7vw,5.2rem);
  font-weight:700;line-height:1.15;letter-spacing:.08em;
  color:var(--white);
  opacity:0;transform:translateY(28px);
  animation:dcFadeUp .85s var(--ease) .55s forwards;
}
.dc-hero__title-en{
  font-family:var(--font-d);
  font-size:clamp(.85rem,2vw,1.2rem);
  font-weight:300;letter-spacing:.3em;
  color:var(--gold);
  opacity:0;transform:translateY(16px);
  animation:dcFadeUp .7s var(--ease) .85s forwards;
}
.dc-hero__lead{
  font-size:clamp(.95rem,1.8vw,1.12rem);font-weight:300;
  color:rgba(255,255,255,.72);line-height:2;letter-spacing:.04em;
  margin-bottom:40px;
  opacity:0;transform:translateY(14px);
  animation:dcFadeUp .7s var(--ease) 1.05s forwards;
}
.dc-hero__cta{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-d);font-size:.8rem;font-weight:700;letter-spacing:.14em;
  padding:14px 36px;border-radius:40px;
  background:linear-gradient(135deg,var(--gold),#ff9f00);
  color:var(--black);
  box-shadow:0 4px 24px rgba(255,215,0,.4);
  transition:transform .35s var(--ease),box-shadow .35s,opacity .35s;
  opacity:0;
  animation:dcFadeUp .7s var(--ease) 1.25s forwards;
}
.dc-hero__cta::after{content:'→';font-family:var(--font-d)}
.dc-hero__cta:hover{transform:translateY(-3px);box-shadow:0 8px 40px rgba(255,215,0,.6);opacity:.95}

/* スクロールヒント */
.dc-hero__scroll-hint{
  position:absolute;bottom:32px;left:50%;transform:translateX(-50%);
  z-index:3;display:flex;flex-direction:column;align-items:center;gap:8px;
  opacity:.5;animation:dcScrollPulse 2.8s ease-in-out infinite;
}
.dc-hero__scroll-line{
  display:block;width:1px;height:48px;
  background:linear-gradient(to bottom,var(--gold),transparent);
}
.dc-hero__scroll-label{
  font-family:var(--font-d);font-size:.5rem;font-weight:700;letter-spacing:.4em;
  color:var(--gold);
}
@keyframes dcScrollPulse{0%,100%{opacity:.35;transform:translateX(-50%) translateY(0)}50%{opacity:.8;transform:translateX(-50%) translateY(6px)}}
@keyframes dcFadeUp{to{opacity:1;transform:translateY(0)}}


/* ==================================================
   WHY SECTION
   ================================================== */
.dc-why{background:var(--dark);border-top:1px solid var(--border)}
.dc-why__grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.dc-why__card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:32px 24px;
  transition:border-color .35s,transform .35s var(--ease),box-shadow .35s;
}
.dc-why__card:hover{
  border-color:rgba(255,215,0,.4);
  transform:translateY(-4px);
  box-shadow:0 12px 40px rgba(0,0,0,.45),0 0 0 1px rgba(255,215,0,.12);
}
.dc-why__card-icon{
  width:52px;height:52px;border-radius:14px;
  background:var(--gold-dim);
  border:1px solid rgba(255,215,0,.25);
  display:grid;place-items:center;
  color:var(--gold);margin-bottom:20px;
}
.dc-why__card-title{
  font-family:var(--font-d);font-size:.95rem;font-weight:700;
  color:var(--white);margin-bottom:12px;line-height:1.4;
}
.dc-why__card-body{font-size:.88rem;color:var(--muted);line-height:1.85}


/* ==================================================
   BUSINESS MATCH
   ================================================== */
.dc-match{
  background:var(--black);
  border-top:1px solid var(--border);
  position:relative;overflow:hidden;
}
.dc-match::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 50% at 50% 50%,rgba(255,215,0,.04),transparent);
  pointer-events:none;
}
.dc-match__grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.dc-match__card{
  position:relative;overflow:hidden;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:32px 24px 28px;
  cursor:pointer;
  transition:transform .35s var(--ease),box-shadow .35s,border-color .35s;
}
.dc-match__card:focus{
  outline:2px solid var(--gold);outline-offset:3px;
}
.dc-match__card:hover,.dc-match__card:focus-visible{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.dc-match__card-glow{
  position:absolute;inset:0;border-radius:inherit;
  opacity:0;
  transition:opacity .4s;
  pointer-events:none;
}
.dc-match__card:hover .dc-match__card-glow{opacity:1}

/* 各サイトカラー */
.dc-match__card--fcs{--c:var(--site-fcs);--cg:rgba(0,180,216,.12)}
.dc-match__card--si{--c:var(--site-si);--cg:rgba(6,214,160,.12)}
.dc-match__card--psd{--c:var(--site-psd);--cg:rgba(114,9,183,.15)}
.dc-match__card--nexus{--c:var(--site-nexus);--cg:rgba(247,37,133,.12)}
.dc-match__card--other{--c:var(--gold);--cg:rgba(255,215,0,.08);grid-column:1/-1}

.dc-match__card--other{
  display:flex;align-items:center;gap:32px;
  padding:28px 36px;
}
.dc-match__card--wide .dc-match__card-icon{margin-bottom:0;flex-shrink:0}
.dc-match__card--wide .dc-match__card-title{margin-bottom:4px}
.dc-match__card--wide .dc-match__card-body-text{font-size:.88rem;color:var(--muted);line-height:1.8;flex:1}

.dc-match__card--fcs:hover,.dc-match__card--fcs:focus-visible{border-color:rgba(0,180,216,.5)}
.dc-match__card--si:hover,.dc-match__card--si:focus-visible{border-color:rgba(6,214,160,.5)}
.dc-match__card--psd:hover,.dc-match__card--psd:focus-visible{border-color:rgba(114,9,183,.5)}
.dc-match__card--nexus:hover,.dc-match__card--nexus:focus-visible{border-color:rgba(247,37,133,.5)}
.dc-match__card--other:hover,.dc-match__card--other:focus-visible{border-color:rgba(255,215,0,.45)}

.dc-match__card--fcs .dc-match__card-glow{background:radial-gradient(circle at 60% 40%,var(--cg) 0%,transparent 70%)}
.dc-match__card--si .dc-match__card-glow{background:radial-gradient(circle at 60% 40%,var(--cg) 0%,transparent 70%)}
.dc-match__card--psd .dc-match__card-glow{background:radial-gradient(circle at 60% 40%,var(--cg) 0%,transparent 70%)}
.dc-match__card--nexus .dc-match__card-glow{background:radial-gradient(circle at 60% 40%,var(--cg) 0%,transparent 70%)}
.dc-match__card--other .dc-match__card-glow{background:radial-gradient(circle at 50% 50%,var(--cg) 0%,transparent 70%)}

.dc-match__card-num{
  position:absolute;top:20px;right:22px;
  font-family:var(--font-d);font-size:2.2rem;font-weight:900;letter-spacing:-.03em;
  color:var(--c);opacity:.15;line-height:1;
}
.dc-match__card-icon{
  width:52px;height:52px;border-radius:14px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  display:grid;place-items:center;
  color:var(--c);
  margin-bottom:18px;
  transition:background .3s,border-color .3s;
}
.dc-match__card:hover .dc-match__card-icon{
  background:rgba(255,255,255,.1);
  border-color:var(--c);
}
.dc-match__card-title{
  font-family:var(--font-b);font-size:1rem;font-weight:700;
  color:var(--white);line-height:1.45;margin-bottom:14px;
}
.dc-match__card-title small{
  display:block;font-family:var(--font-d);font-size:.6rem;font-weight:400;
  letter-spacing:.08em;color:var(--c);margin-top:4px;
}
.dc-match__card-tags{
  list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin-bottom:20px;
}
.dc-match__card-tags li{
  font-family:var(--font-d);font-size:.58rem;font-weight:600;letter-spacing:.06em;
  padding:3px 10px;border-radius:20px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  color:var(--off-w);white-space:nowrap;
}
.dc-match__card-cta{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-d);font-size:.68rem;font-weight:700;letter-spacing:.08em;
  color:var(--c);
  transition:gap .3s;
}
.dc-match__card:hover .dc-match__card-cta{gap:10px}


/* ==================================================
   FORM SECTION
   ================================================== */
.dc-form-section{
  position:relative;overflow:hidden;
  background:var(--dark);
  border-top:1px solid var(--border);
  padding:96px 0 112px;
}
.dc-form-section__bg{
  position:absolute;inset:0;z-index:0;pointer-events:none;
}
#dc-form-canvas{width:100%;height:100%;opacity:.25}
.dc-form-section__inner{position:relative;z-index:1}

/* プリセット バッジ */
.dc-selected-preset{
  display:flex!important;align-items:center;gap:10px;
  margin:0 auto 32px;
  max-width:680px;
  background:var(--gold-dim);
  border:1px solid rgba(255,215,0,.35);
  border-radius:40px;
  padding:10px 20px;
  font-family:var(--font-d);font-size:.72rem;
}
.dc-selected-preset__label{color:var(--muted);font-weight:600;letter-spacing:.04em}
.dc-selected-preset__value{color:var(--gold);font-weight:700;letter-spacing:.04em;flex:1}
.dc-selected-preset__clear{
  width:22px;height:22px;border-radius:50%;
  display:grid;place-items:center;
  background:rgba(255,255,255,.08);
  color:var(--muted);font-size:.7rem;
  transition:background .3s,color .3s;
}
.dc-selected-preset__clear:hover{background:rgba(255,255,255,.18);color:var(--white)}

/* CF7 フォームラップ */
.dc-form-wrap{
  max-width:680px;margin:0 auto;
  background:var(--surface);
  border:1px solid var(--border2);
  border-radius:var(--radius-xl);
  padding:48px 52px;
  box-shadow:var(--shadow-lg);
}

/* ===== CF7 スタイル上書き ===== */
body.daisen-connect .wpcf7-form{width:100%}
body.daisen-connect .wpcf7-form p{margin:0 0 24px}
body.daisen-connect .wpcf7-form label{
  display:block;
  font-family:var(--font-d);font-size:.72rem;font-weight:700;letter-spacing:.08em;
  color:var(--muted);margin-bottom:8px;
}

body.daisen-connect .wpcf7-form input[type="text"],
body.daisen-connect .wpcf7-form input[type="email"],
body.daisen-connect .wpcf7-form input[type="tel"],
body.daisen-connect .wpcf7-form input[type="url"],
body.daisen-connect .wpcf7-form select,
body.daisen-connect .wpcf7-form textarea{
  display:block;width:100%;
  background:rgba(255,255,255,.05);
  border:1px solid var(--border2);
  border-radius:var(--radius-md);
  padding:14px 18px;
  font-family:var(--font-b);font-size:.95rem;
  color:var(--white);
  outline:none;
  transition:border-color .3s,background .3s,box-shadow .3s;
  appearance:none;-webkit-appearance:none;
}
body.daisen-connect .wpcf7-form input[type="text"]::placeholder,
body.daisen-connect .wpcf7-form input[type="email"]::placeholder,
body.daisen-connect .wpcf7-form input[type="tel"]::placeholder,
body.daisen-connect .wpcf7-form textarea::placeholder{
  color:var(--muted);
}
body.daisen-connect .wpcf7-form input:focus,
body.daisen-connect .wpcf7-form select:focus,
body.daisen-connect .wpcf7-form textarea:focus{
  border-color:var(--gold);
  background:rgba(255,215,0,.04);
  box-shadow:0 0 0 3px rgba(255,215,0,.12);
}
body.daisen-connect .wpcf7-form select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none' stroke='%238888aa' stroke-width='2'%3E%3Cpolyline points='1 1 6 7 11 1'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;
  padding-right:42px;cursor:pointer;
}
body.daisen-connect .wpcf7-form textarea{
  height:180px;resize:vertical;line-height:1.8;
}

/* CF7 送信ボタン */
body.daisen-connect .wpcf7-form input[type="submit"],
body.daisen-connect .wpcf7-submit{
  display:block!important;width:100%!important;
  padding:16px 32px!important;
  font-family:var(--font-d)!important;font-size:.82rem!important;font-weight:700!important;letter-spacing:.14em!important;
  background:linear-gradient(135deg,var(--gold),#ff9f00)!important;
  color:var(--black)!important;
  border:none!important;border-radius:40px!important;
  cursor:pointer!important;
  box-shadow:0 4px 20px rgba(255,215,0,.4)!important;
  transition:transform .35s var(--ease),box-shadow .35s,opacity .35s!important;
  margin-top:8px!important;
}
body.daisen-connect .wpcf7-form input[type="submit"]:hover{
  transform:translateY(-2px)!important;
  box-shadow:0 8px 36px rgba(255,215,0,.6)!important;
  opacity:.95!important;
}

/* CF7 検証エラー */
body.daisen-connect .wpcf7-not-valid-tip{
  display:block;font-size:.75rem;color:#f72585;margin-top:4px;
}
body.daisen-connect .wpcf7-not-valid{border-color:#f72585!important}

/* CF7 送信完了メッセージ */
body.daisen-connect .wpcf7-mail-sent-ok,
body.daisen-connect .wpcf7-response-output{
  font-size:.88rem;margin-top:16px!important;padding:14px 18px!important;
  border-radius:var(--radius-md)!important;text-align:center;
}
body.daisen-connect .wpcf7-mail-sent-ok{
  background:rgba(6,214,160,.12)!important;
  border:1px solid rgba(6,214,160,.4)!important;
  color:var(--site-si)!important;
}
body.daisen-connect .wpcf7-validation-errors,
body.daisen-connect .wpcf7-mail-sent-ng{
  background:rgba(247,37,133,.1)!important;
  border:1px solid rgba(247,37,133,.35)!important;
  color:#f72585!important;
}


/* ==================================================
   BACK SECTION
   ================================================== */
.dc-back{
  background:var(--black);
  border-top:1px solid var(--border);
  padding:72px 0;
}
.dc-back__inner{text-align:center}
.dc-back__caption{
  font-family:var(--font-d);font-size:.7rem;font-weight:700;letter-spacing:.3em;
  color:var(--muted);margin-bottom:28px;
}
.dc-back__links{
  display:flex;flex-wrap:wrap;justify-content:center;gap:12px;
}
.dc-back__link{
  font-family:var(--font-d);font-size:.72rem;font-weight:600;letter-spacing:.06em;
  padding:9px 22px;border-radius:40px;
  border:1px solid var(--border2);color:var(--muted);
  transition:border-color .3s,color .3s,background .3s,transform .3s;
}
.dc-back__link:hover{border-color:rgba(255,255,255,.3);color:var(--white);transform:translateY(-2px)}
.dc-back__link--fcs:hover{border-color:var(--site-fcs);color:var(--site-fcs)}
.dc-back__link--si:hover{border-color:var(--site-si);color:var(--site-si)}
.dc-back__link--psd:hover{border-color:var(--site-psd);color:var(--site-psd)}
.dc-back__link--nexus:hover{border-color:var(--site-nexus);color:var(--site-nexus)}
.dc-back__link--log:hover{border-color:var(--site-log);color:var(--site-log)}


/* ==================================================
   BACK TO TOP
   ================================================== */
.dc-btt{
  position:fixed;bottom:28px;right:28px;z-index:8000;
  width:44px;height:44px;border-radius:50%;
  background:linear-gradient(135deg,var(--gold),#ff9f00);
  color:var(--black);
  display:grid;place-items:center;
  box-shadow:0 4px 16px rgba(255,215,0,.4);
  opacity:0;transform:translateY(12px);
  transition:opacity .4s,transform .4s,box-shadow .3s;
  pointer-events:none;
}
.dc-btt.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.dc-btt:hover{box-shadow:0 6px 24px rgba(255,215,0,.65);transform:translateY(-2px)}


/* ==================================================
   RESPONSIVE
   ================================================== */

/* タブレット */
@media(max-width:1024px){
  .dc-container{padding:0 28px}
  .dc-why__grid{grid-template-columns:repeat(2,1fr)}
  .dc-match__grid{grid-template-columns:repeat(2,1fr)}
  .dc-match__card--other{grid-column:1/-1;flex-direction:column;align-items:flex-start}
  .dc-match__card--wide .dc-match__card-icon{margin-bottom:16px}
  .dc-header__nav{display:none}
  .dc-header__toggle{display:flex}

  /* モバイルメニュー */
  .dc-header__nav.is-open{
    display:flex!important;flex-direction:column;
    position:fixed;top:66px;left:0;right:0;
    background:rgba(7,7,15,.98);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--border);
    padding:16px 24px 24px;gap:4px;z-index:8500;
  }
  .dc-header__nav.is-open .dc-header__nav-item{
    padding:12px 16px;border-radius:8px;font-size:.82rem;
  }
  .dc-header__nav.is-open .dc-header__nav-cta{
    margin-left:0!important;border-radius:8px!important;text-align:center;
  }

  .dc-form-wrap{padding:36px 32px}
}

/* スマートフォン */
@media(max-width:640px){
  .dc-container{padding:0 20px}
  .dc-section{padding:64px 0}
  .dc-section-head{margin-bottom:40px}

  .dc-hero{min-height:90vh;padding:100px 20px 80px}
  .dc-hero__title-ja{letter-spacing:.04em}

  .dc-why__grid{grid-template-columns:1fr}
  .dc-match__grid{grid-template-columns:1fr}
  .dc-match__card--other{flex-direction:column;align-items:flex-start}

  .dc-form-wrap{padding:28px 20px;border-radius:var(--radius-lg)}

  .dc-back__links{gap:8px}
  .dc-back__link{font-size:.67rem;padding:8px 16px}

  .dc-btt{bottom:20px;right:16px}
}

/* 超小型端末 */
@media(max-width:380px){
  .dc-hero__title-ja{font-size:2rem}
  .dc-hero__cta{font-size:.74rem;padding:12px 28px}
}

/* 原点ボタン（connect ヘッダー） */
.dc-header__nav-origin {
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 2px;
  padding: .3em .9em;
  color: rgba(255,255,255,.8);
  letter-spacing: .1em;
  transition: background .2s, border-color .2s;
}
.dc-header__nav-origin:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.65);
  color: #fff;
}

/* ====== 選択テーマインジケーター（改修版） ====== */
.dc-preset-indicator {
  display: flex;
  align-items: center;
  gap: .6em;
  margin-bottom: 1.8rem;
  padding: .8em 1.4em;
  background: rgba(212,175,55,.10);
  border: 1px solid rgba(212,175,55,.35);
  border-left: 3px solid rgba(212,175,55,.8);
  border-radius: 3px;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: .88rem;
  color: rgba(255,255,255,.9);
  letter-spacing: .05em;
  backdrop-filter: blur(4px);
}
.dc-preset-indicator__icon {
  color: rgba(212,175,55,.8);
  font-size: .75rem;
  flex-shrink: 0;
}
.dc-preset-indicator__label {
  color: rgba(255,255,255,.6);
  font-size: .78rem;
  letter-spacing: .08em;
}
.dc-preset-indicator__sep { color: rgba(255,255,255,.35); }
.dc-preset-indicator__value {
  font-weight: 600;
  color: rgba(212,175,55,.95);
  letter-spacing: .08em;
}
.dc-preset-indicator__clear {
  margin-left: auto;
  background: none;
  border: none;
  padding: .2em;
  cursor: pointer;
  color: rgba(255,255,255,.45);
  line-height: 1;
  transition: color .2s;
}
.dc-preset-indicator__clear:hover { color: rgba(255,255,255,.9); }