:root{
  --ink:#1f2933; --muted:#6b7280; --bg:#fffefe;
  --brand:#5eb451; --card:#ffffff; --ring:#e5e7eb;
  --mint:#62d2b1; --gold:#f2c84b; --sky:#b4e3ff;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif}
.container{max-width:1040px;margin:0 auto;padding:24px}

/* ===== ヒーロー ===== */
.site-header{position:relative;overflow:hidden;padding-top:24px}
.hero{position:relative;z-index:1;text-align:center;padding:24px 24px 48px}
.brandline{display:flex;gap:10px;align-items:center;justify-content:center}
.site-header .brand{width:56px;height:56px;filter:drop-shadow(0 6px 20px rgba(0,0,0,.12))}
.site-header h1{margin:0;font-size:34px;letter-spacing:.3px}
.lead{color:var(--muted);margin:6px 0 18px}

/* バブル背景 */
.hero-bg{position:absolute;inset:0;background:radial-gradient(1200px 600px at 10% 0%, rgba(98,210,177,.25), transparent),
                                   radial-gradient(900px 500px at 90% 10%, rgba(242,200,75,.25), transparent);}
.blob{position:absolute;width:220px;height:220px;border-radius:50%;filter:blur(24px);opacity:.5;animation:float 10s ease-in-out infinite alternate}
.blob.b1{background:var(--mint);top:10%;left:15%}
.blob.b2{background:var(--gold);top:0%;right:10%;animation-delay:1.2s}
.blob.b3{background:var(--sky);bottom:-6%;left:25%;animation-delay:.6s}
@keyframes float{to{transform:translateY(18px) translateX(6px)}}

/* 波 */
.wave svg{display:block;width:100%;height:80px}
.wave path{fill:#fff}

/* ===== SNSボタン（ヒーロー＆帯） ===== */
.sns{display:inline-flex;align-items:center;gap:10px;
     padding:10px 14px;border-radius:999px;font-weight:700;
     text-decoration:none;box-shadow:0 6px 20px rgba(0,0,0,.08);
     transition:transform .08s ease}
.sns:hover{transform:translateY(-1px)}
.sns .sns-icon{display:block;width:20px;height:20px}

/* 背景はボタン側で用意（ロゴ自体は加工しない） */
.sns-note{background:#fff;border:1px solid #e5e7eb;color:#222}
.sns-x{background:#111;border:1px solid #111;color:#fff}

/* 余白（クリアスペース）を確保しやすくする */
.social-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ===== 見出し＆カード ===== */
h2{font-size:22px;margin:8px 0 16px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--ring);border-radius:16px;padding:16px;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.card img{width:64px;height:64px;border-radius:14px;border:1px solid var(--ring);background:#fafafa}
.card h3{font-size:18px;margin:12px 0 8px}
.card .desc{color:var(--muted);min-height:3em;margin:0 0 12px}
.links{display:flex;gap:8px;flex-wrap:wrap}
.btn{appearance:none;border:1px solid var(--brand);background:var(--brand);color:#fff;padding:8px 12px;border-radius:999px;text-decoration:none;font-weight:600}
.btn.ghost{background:transparent;color:var(--brand)}
.btn:hover{opacity:.9}
.btn.disabled{opacity:.5;pointer-events:none}

/* ===== SNSコールアウト帯 ===== */
.follow-band{background:linear-gradient(180deg, rgba(94,180,81,.08), rgba(94,180,81,.00));padding:24px 0;margin-top:24px}
.band-inner{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.band-inner p{margin:0;font-weight:600}
.band-actions{display:flex;gap:10px;flex-wrap:wrap}

/* ===== フッター ===== */
.site-footer{border-top:1px solid var(--ring);margin-top:8px}
.site-footer .container{display:flex;gap:16px;align-items:center;justify-content:center;padding:18px 24px}

/* ===== フローティングSNSドック（PCのみ） ===== */
.social-dock{position:fixed;right:20px;bottom:20px;display:none;flex-direction:column;gap:10px;z-index:10}
@media (min-width: 960px){ .social-dock{display:flex} }
.dock-btn{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
          background:#fff;border:1px solid var(--ring);box-shadow:0 8px 22px rgba(0,0,0,.12);text-decoration:none}
.dock-btn svg{width:22px;height:22px}
.dock-btn.note{color:#222}
.dock-btn.x{background:#111;border-color:#111}
.dock-btn.x svg path{fill:#fff}