@charset "UTF-8";
/* ══════════════════════════════════════════════
   ROCK STAR JAPAN — sp.css（768px以下・スマホ専用）
   C案 Refined Heritage：ゴールド基調・1カラム・演出要素なし
   ══════════════════════════════════════════════ */

/* ── ヘッダー：ロゴ＋ハンバーガー ── */
.gh{height:60px;padding:0 16px;}
.gh-logo{font-size:16px;}
.gh-logo .mark{width:16px;height:16px;}
.gh-nav{display:none;}
.gh-burger{
  display:flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;background:transparent;border:none;cursor:pointer;padding:0;
}
.gh-burger i{display:block;height:2px;width:24px;background:var(--ink);transition:.3s;}
.gh-burger.open i:nth-child(1){transform:translateY(7px) rotate(45deg);}
.gh-burger.open i:nth-child(2){opacity:0;}
.gh-burger.open i:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* SP全画面メニュー */
.sp-menu{
  position:fixed;inset:60px 0 0 0;z-index:99;
  background:var(--ink);
  display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .4s cubic-bezier(.22,.61,.36,1);
}
.sp-menu.open{transform:none;}
.sp-menu a{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 26px;color:var(--paper);
  font-size:16px;font-weight:700;letter-spacing:.08em;
  border-bottom:1px solid rgba(250,249,246,.12);
}
.sp-menu a::after{content:"→";color:var(--gold);}
.sp-menu a.cta{background:var(--gold);color:var(--ink);}
.sp-menu a.cta::after{color:var(--ink);}

/* ── ヒーロー ── */
.hero{padding:118px 0 66px;}
.hero-visual{display:none;} /* SPではネットワーク図を非表示（本文可読性を優先） */
.hero-top{display:block;}
.hero-inner{padding:0 24px;overflow:hidden;}
.eyebrow{font-size:10px;letter-spacing:.12em;gap:8px;flex-wrap:nowrap;overflow:hidden;}
.eyebrow::before{width:28px;flex-shrink:0;}
.hero-h1{font-size:clamp(30px,9vw,44px);line-height:1.34;margin-top:22px;}
.hero-sub{font-size:13px;margin-top:22px;line-height:1.9;word-break:break-all;}
.hero-sub br{display:none;}
.hero-cta{margin-top:30px;gap:10px;flex-direction:column;}
.hero-cta .btn{justify-content:center;padding:15px 18px;font-size:13.5px;}
.hero-stats{margin-top:40px;gap:0;}
.hero-stats .stat{padding:18px 20px 4px 0;margin-right:20px;}
.hero-stats .stat .n{font-size:22px;}
.hero-stats .stat .l{font-size:10.5px;}

/* ── リード ── */
.lead-sec{padding:74px 0 60px;}
.lead-sec .kw{font-size:clamp(26px,8vw,36px);}
.lead-sec .sub{font-size:14px;}
.lead-sec .lede{font-size:13.5px;margin-top:26px;}
.voltline{height:48px;}

/* ── セクションラベル ── */
.sec-label{font-size:12px;letter-spacing:.2em;}
.jp-tag{font-size:11px;display:block;margin:8px 0 0;}

/* ── IDENTITY ── */
.identity-sec{padding:74px 0;}
.identity-grid{grid-template-columns:1fr;gap:36px;margin-top:36px;}
.id-diagram{max-width:300px;margin:0 auto;}
.identity-sec .h-big{font-size:clamp(21px,6vw,26px);}
.identity-sec .body-copy{font-size:13px;margin-top:20px;}

/* ── 2大構造 ── */
.struct-sec{padding:74px 0;}
.struct-head{font-size:clamp(24px,7vw,32px);margin-top:28px;gap:10px;}
.struct-head .num{font-size:clamp(56px,16vw,80px);}
.pillars{grid-template-columns:1fr;gap:18px;margin-top:40px;}
.pillar{padding:32px 24px 34px;}
.pillar h3{font-size:20px;}
.pillar>p{font-size:13px;}
.forwho{padding:16px 18px;}
.forwho li{font-size:12.5px;}

/* ── 土地オーナー ── */
.owner-sec{padding:74px 0;}
.owner-grid{grid-template-columns:1fr;gap:36px;margin-top:34px;}
.owner-kicker{font-size:clamp(22px,6.5vw,30px);}
.owner-desc{font-size:13px;}
.merit .mk{min-width:56px;font-size:20px;}
.merit .mt{padding:14px 16px;}
.merit .mt b{font-size:13.5px;}
.merit .mt span{font-size:12px;}
.cond .ch{font-size:13px;padding:14px 18px;letter-spacing:.16em;}
.cond td{display:block;width:100%;padding:10px 18px;}
.cond td.k{width:100%;padding-bottom:4px;font-size:12px;}
.cond td.v{padding-top:6px;padding-bottom:14px;font-size:13px;border-bottom:1px solid var(--line);}
.cond tr:last-child td.v{border-bottom:none;}
.cond .note{font-size:10px;padding:12px 18px;}

/* ── パートナー ── */
.ptn-sec{padding:74px 0;}
.ptn-kicker{font-size:clamp(20px,6vw,28px);margin-top:26px;}
.ptn-desc{font-size:13px;padding:0 4px;}
.ptn-list .chip{font-size:11.5px;padding:8px 16px;}
.fee{padding:18px 26px;font-size:14px;}
.fee small{font-size:10.5px;}

/* ── 実績 ── */
.arch-sec{padding:74px 0;}
.arch-rows{margin-top:40px;}
.arch-row{grid-template-columns:52px 1fr;gap:16px;padding:24px 4px;}
.arch-no{font-size:32px;}
.arch-row h4{font-size:15px;}
.arch-row p{font-size:12.5px;}

/* ── 8事業 ── */
.biz-sec{padding:74px 0;}
.biz-grid{grid-template-columns:1fr;gap:12px;margin-top:40px;}
.arch-cat-grid{grid-template-columns:1fr;gap:1px;}
.arch-cat{padding:28px 24px 24px;}
.arch-total{font-size:12px;}
.biz-card{padding:24px 20px 22px;}
.biz-card h3{font-size:15.5px;}
.biz-card p{font-size:12px;}
.biz-card .en-bg{font-size:42px;}

/* ── 会社概要 ── */
.co-sec{padding:74px 0;}
.co-grid{grid-template-columns:1fr;gap:34px;margin-top:36px;}
.co-table th{font-size:11px;padding:13px 15px;width:32%;}
.co-table td{font-size:13px;padding:13px 15px;}
.co-map iframe{height:250px;}
.co-map .map-link{font-size:12px;}

/* ── CTA ── */
.cta-sec{padding:80px 0;}
.cta-label{font-size:11px;letter-spacing:.24em;margin-bottom:22px;}
.cta-h{font-size:clamp(26px,8vw,38px);}
.cta-ln{font-size:13px;}
.routes{flex-direction:column;gap:12px;margin-top:34px;padding:0 8px;}
.routes a{width:100%;text-align:center;padding:15px 20px;font-size:13.5px;}

/* ── フォーム ── */
.form-sec{padding:64px 0 80px;}
.form-lead{font-size:12.5px;padding:0 12px;}
.cf{padding:30px 20px 36px;border-radius:12px;}
.cf-group{margin-bottom:26px;}
.cf-label{font-size:12px;letter-spacing:.12em;}
.cf-input,.cf-textarea{font-size:16px;padding:12px;} /* 16px=iOSズーム防止 */
.cf-types{grid-template-columns:1fr;gap:10px;}
.cf-type{padding:15px 16px;}
.cf-type .t-label{font-size:13.5px;}
.cf-type .t-sub{font-size:10.5px;}
.cf-opt span{font-size:12px;padding:9px 15px;}
.cf-branch-head{font-size:12px;}
.cf-submit{font-size:14.5px;padding:16px;letter-spacing:.12em;}
.cf-success{padding:56px 14px;}
.cf-success h3{font-size:18px;}
.cf-success p{font-size:13px;}

/* ── フッター ── */
.foot{padding:32px 0;}
.foot .b{font-size:13px;letter-spacing:.24em;}
.foot .sub{font-size:10px;}
.foot .fnav{gap:14px 18px;margin-top:16px;}
.foot .fnav a{font-size:11.5px;}
.foot .copy{font-size:10px;}