/* ═══════════════════════════════════════════════════════
   デザイン仕様書 パターン B — サイトクローム（ヘッダー・グローバルナビ／メガメニュー・フッター）
   common.css の後に読み込む。共通クローム（.site-header / .gnav / .site-footer 等）を上書き。
   ═══════════════════════════════════════════════════════ */

/* 固定ヘッダー分の余白 */
body{padding-top:60px}

/* スキップリンク */
.skip-link{position:absolute;left:-9999px;top:0;z-index:400;background:var(--c-indigo,#0066CC);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;font-family:var(--f-display);font-size:13px}
.skip-link:focus{left:0}

/* ── ヘッダー ── */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;height:60px;
  background:rgba(255,255,255,.72);
  backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid transparent;
  transition:box-shadow .24s var(--ease-apple,cubic-bezier(.4,0,.2,1)),border-color .24s var(--ease-apple,cubic-bezier(.4,0,.2,1));
}
.site-header.scrolled{box-shadow:var(--sh-sm,0 2px 8px rgba(0,0,0,.08));border-bottom-color:var(--c-line-l,#F5F5F7)}
.header-inner{max-width:var(--container,1180px);margin:0 auto;height:100%;padding:0 var(--sp-6,24px);display:flex;align-items:center;justify-content:space-between;gap:var(--sp-6,24px)}
.site-logo{font-family:var(--f-display);font-size:18px;font-weight:var(--fw-b,700);letter-spacing:-.03em;color:var(--c-ink,#1D1D1F);flex-shrink:0;display:inline-flex;align-items:center}
.logo-accent{color:var(--c-indigo,#0066CC)}
.site-logo img{height:26px;width:auto;display:block}
.footer-logo img{height:26px;width:auto;display:block;filter:brightness(0) invert(1)}

.gnav{display:flex;gap:2px}
.gnav-link{font-family:var(--f-display);font-size:13px;font-weight:var(--fw-m,500);color:var(--c-ink-2,#424245);padding:6px 11px;border-radius:9999px;white-space:nowrap;cursor:pointer;background:none;border:0;transition:color .16s var(--ease-out,ease),background .16s var(--ease-out,ease)}
.gnav-link:hover{color:var(--c-ink,#1D1D1F);background:rgba(0,0,0,.04)}
.gnav-link.active{color:var(--c-indigo,#0066CC);font-weight:var(--fw-sb,600);background:var(--c-indigo-l,#E8F0FD)}

.header-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn-sm{display:inline-flex;align-items:center;justify-content:center;font-family:var(--f-display);font-size:13px;font-weight:var(--fw-m,500);padding:8px 16px;border-radius:9999px;white-space:nowrap;transition:all .16s var(--ease-out,ease);border:1.5px solid transparent}
.btn-sm.btn-primary{background:var(--c-indigo,#0066CC);color:#fff}
.btn-sm.btn-primary:hover{background:var(--c-indigo-d,#004FA3)}
.btn-sm.btn-ghost{background:transparent;color:var(--c-ink-2,#424245);border-color:var(--c-line,#D2D2D7)}
.btn-sm.btn-ghost:hover{border-color:var(--c-ink-3,#6E6E73);color:var(--c-ink,#1D1D1F)}

.nav-toggle{display:none}

/* ── メガメニュー ── */
.mega{position:absolute;top:60px;left:0;right:0;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(24px);-webkit-backdrop-filter:saturate(180%) blur(24px);border-bottom:1px solid var(--c-line-l,#F5F5F7);box-shadow:var(--sh-lg,0 8px 32px rgba(0,0,0,.12));opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .24s var(--ease-apple,ease),transform .24s var(--ease-apple,ease),visibility .24s}
.mega.open{opacity:1;visibility:visible;transform:translateY(0)}
.mega-inner{max-width:var(--container,1180px);margin:0 auto;padding:40px var(--sp-6,24px);display:grid;grid-template-columns:1fr 1fr 300px;gap:40px}
.mega-col-2{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.mega-label{font-family:var(--f-display);font-size:11px;font-weight:var(--fw-b,700);letter-spacing:.12em;text-transform:uppercase;color:var(--c-ink-4,#86868B);margin-bottom:14px}
.mega-item{display:flex;gap:12px;align-items:flex-start;padding:10px 12px;border-radius:12px;transition:background .16s var(--ease-out,ease)}
.mega-item:hover{background:var(--c-bg-alt,#FBFBFD)}
.mega-item-dot{width:8px;height:8px;border-radius:50%;background:var(--dot,#0066CC);margin-top:6px;flex:none}
.mega-item b{font-family:var(--f-display);font-size:14px;font-weight:var(--fw-sb,600);color:var(--c-ink,#1D1D1F);display:block}
.mega-item em{font-size:12px;font-style:normal;color:var(--c-ink-3,#6E6E73);line-height:1.6}
.mega-promo{background:var(--c-bg-deep,#F5F5F7);border-radius:20px;padding:24px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.mega-promo .mega-label{margin-bottom:0}
.mega-promo-title{font-family:var(--f-display);font-size:17px;font-weight:var(--fw-b,700);color:var(--c-ink,#1D1D1F);line-height:1.45}
.mega-promo .btn-sm{background:linear-gradient(135deg,#0066CC,#7B3FF2);color:#fff;align-self:flex-start}

/* ── パンくず（下層ページ） ── */
.bc-b{background:var(--c-bg-alt,#FBFBFD);border-bottom:1px solid var(--c-line-l,#F5F5F7)}
.bc-b-inner{max-width:var(--container,1180px);margin:0 auto;padding:12px var(--sp-6,24px);font-family:var(--f-display);font-size:12px;color:var(--c-ink-4,#86868B)}
.bc-b-inner a{color:var(--c-ink-3,#6E6E73)}
.bc-b-inner a:hover{color:var(--c-indigo,#0066CC)}
.bc-b-inner span[aria-current]{color:var(--c-ink-2,#424245)}

/* ── フッター（ネイビーのサイトマップ） ── */
.site-footer{background:#1A3560;color:rgba(255,255,255,.7);border:0}
.footer-inner{max-width:var(--container,1180px);margin:0 auto;padding:80px var(--sp-6,24px) 48px;display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:36px}
.footer-brand{display:flex;flex-direction:column}
.footer-logo{font-family:var(--f-display);font-size:20px;font-weight:var(--fw-b,700);color:#fff;letter-spacing:-.03em}
.footer-tagline{font-size:13px;line-height:1.7;color:rgba(255,255,255,.85);margin-top:16px}
.footer-addr{font-size:12px;line-height:1.7;color:rgba(255,255,255,.5);margin-top:20px}
.footer-badge{margin-top:20px}
.footer-badge img{height:38px;width:auto;opacity:.9}
.footer-nav{display:contents}
.footer-col-title{font-family:var(--f-display);font-size:11px;font-weight:var(--fw-b,700);letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.5);margin-bottom:16px}
.footer-col a{display:block;font-size:13px;color:rgba(255,255,255,.72);padding:6px 0;transition:color .16s var(--ease-out,ease)}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12)}
.footer-bottom-inner{max-width:var(--container,1180px);margin:0 auto;padding:20px var(--sp-6,24px);display:flex;justify-content:space-between;align-items:center;gap:16px}
.footer-bottom small{font-size:12px;color:rgba(255,255,255,.5)}
.footer-legal{display:flex;gap:20px}
.footer-legal a{font-size:12px;color:rgba(255,255,255,.5)}
.footer-legal a:hover{color:#fff}

/* ── モバイル（ドロワー） ── */
.drawer{display:none}
@media(max-width:1023px){
  .gnav,.header-cta{display:none}
  .nav-toggle{display:inline-flex;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer}
  .nav-toggle span{width:22px;height:2px;background:var(--c-ink,#1D1D1F);border-radius:2px;transition:transform .24s var(--ease-apple,ease),opacity .24s}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .mega{display:none}
  .drawer{display:block;position:fixed;inset:60px 0 0;background:#fff;z-index:190;transform:translateX(100%);transition:transform .4s var(--ease-apple,ease);overflow-y:auto;padding:24px;-webkit-overflow-scrolling:touch}
  .drawer.open{transform:translateX(0)}
  body.drawer-open{overflow:hidden}
  .drawer-group{border-bottom:1px solid var(--c-line-l,#F5F5F7)}
  .drawer-head{width:100%;display:flex;align-items:center;justify-content:space-between;padding:16px 4px;background:none;border:0;font-family:var(--f-display);font-size:16px;font-weight:var(--fw-sb,600);color:var(--c-ink,#1D1D1F);cursor:pointer}
  .drawer-head .chev{transition:transform .24s var(--ease-apple,ease);color:var(--c-ink-4,#86868B)}
  .drawer-group.open .drawer-head .chev{transform:rotate(180deg)}
  .drawer-panel{max-height:0;overflow:hidden;transition:max-height .3s var(--ease-out,ease)}
  .drawer-group.open .drawer-panel{max-height:640px}
  .drawer-panel a{display:block;padding:10px 4px 10px 16px;font-size:14px;color:var(--c-ink-2,#424245)}
  .drawer-single{display:block;padding:16px 4px;font-family:var(--f-display);font-size:16px;font-weight:var(--fw-sb,600);color:var(--c-ink,#1D1D1F);border-bottom:1px solid var(--c-line-l,#F5F5F7)}
  .drawer-cta{display:flex;flex-direction:column;gap:12px;margin-top:24px}
  .drawer-cta .btn-lg{display:inline-flex;align-items:center;justify-content:center;font-family:var(--f-display);font-size:15px;font-weight:var(--fw-m,500);padding:14px 24px;border-radius:9999px}
  .drawer-cta .btn-primary{background:var(--c-indigo,#0066CC);color:#fff}
  .drawer-cta .btn-ghost{background:transparent;color:var(--c-ink-2,#424245);border:1.5px solid var(--c-line,#D2D2D7)}
}
@media(max-width:900px){
  .footer-inner{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media(max-width:767px){
  .footer-inner{grid-template-columns:1fr}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;gap:10px}
}