:root {
      --bg: #0B0D17;
      --bg2: #10132200;
      --panel: rgba(255, 255, 255, 0.04);
      --panel-border: rgba(255, 255, 255, 0.09);
      --text: #F1F2F8;
      --muted: #9AA0B4;
      --acc1: #C9A24B;
      --acc2: #E6CD8F;
      --grad: linear-gradient(120deg, #E6CD8F, #C9A24B 55%, #B8903C);
    }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      background: var(--bg);
      color: var(--text);
      font-family: -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
      line-height: 1.75;
      overflow-x: hidden;
    }
    .wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

    /* 背景のオーロラ */
    .aurora {
      position: fixed; inset: 0; z-index: -1; overflow: hidden;
      background:
        radial-gradient(600px 400px at 15% -5%, rgba(201, 162, 75, 0.22), transparent 65%),
        radial-gradient(700px 500px at 90% 10%, rgba(18, 44, 79, 0.14), transparent 65%),
        radial-gradient(800px 600px at 50% 110%, rgba(201, 162, 75, 0.12), transparent 60%);
    }

    /* ナビ */
    nav {
      display: flex; align-items: center; justify-content: space-between;
      padding: 20px 0;
    }
    .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; letter-spacing: .01em; }
    .brand img { width: 30px; height: 30px; border-radius: 8px; }
    .brand span {
      background: var(--grad);
      -webkit-background-clip: text; background-clip: text; color: transparent;
    }
    .nav-cta {
      color: var(--text); text-decoration: none; font-size: 13.5px; font-weight: 600;
      border: 1px solid var(--panel-border); border-radius: 999px; padding: 8px 18px;
      background: var(--panel); backdrop-filter: blur(8px);
      transition: border-color .15s, background .15s;
    }
    .nav-cta:hover { border-color: var(--acc1); background: rgba(201, 162, 75, 0.12); }

    /* ヒーロー */
    .hero { text-align: center; padding: 72px 0 40px; }
    .badge {
      display: inline-flex; align-items: center; gap: 7px;
      font-size: 12.5px; font-weight: 600; color: #E6CD8F;
      border: 1px solid rgba(201, 162, 75, 0.35);
      background: rgba(201, 162, 75, 0.1);
      border-radius: 999px; padding: 6px 16px;
    }
    .badge .dot { width: 7px; height: 7px; border-radius: 50%; background: #34D399; box-shadow: 0 0 10px #34D399; }
    h1 {
      font-size: clamp(34px, 7.5vw, 62px);
      font-weight: 900; letter-spacing: .01em; line-height: 1.25;
      margin-top: 22px;
    }
    h1 .grad {
      background: var(--grad);
      -webkit-background-clip: text; background-clip: text; color: transparent;
    }
    .hero .sub {
      color: var(--muted); font-size: clamp(14.5px, 3.6vw, 17.5px);
      margin-top: 18px;
    }
    .cta {
      display: inline-block; margin-top: 30px;
      background: var(--grad); color: #fff; text-decoration: none;
      font-weight: 800; font-size: 16.5px;
      padding: 16px 46px; border-radius: 999px;
      box-shadow: 0 10px 40px rgba(201, 162, 75, 0.45), inset 0 1px 0 rgba(255,255,255,.25);
      transition: transform .12s, filter .12s;
    }
    .cta:hover { filter: brightness(1.1); transform: translateY(-2px); }
    .cta-note { color: var(--muted); font-size: 12.5px; margin-top: 12px; }
    .cta-note a { color: var(--acc2); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }

    .ref-banner {
      display: none;
      margin: 26px auto 0; max-width: 460px;
      background: rgba(52, 211, 153, 0.1);
      border: 1px solid rgba(52, 211, 153, 0.35);
      border-radius: 14px; padding: 13px 20px; font-size: 13.5px;
    }
    .ref-banner b { color: #34D399; font-family: ui-monospace, "SF Mono", monospace; letter-spacing: .06em; }

    /* 製品モック */
    .mock-frame {
      margin: 56px auto 0; max-width: 860px;
      border-radius: 18px;
      border: 1px solid var(--panel-border);
      background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
      box-shadow: 0 40px 120px rgba(0, 0, 0, 0.55), 0 0 80px rgba(201, 162, 75, 0.12);
      overflow: hidden;
      text-align: left;
    }
    .mock-bar {
      display: flex; align-items: center; gap: 7px;
      padding: 12px 16px; border-bottom: 1px solid var(--panel-border);
    }
    .mock-bar i { width: 11px; height: 11px; border-radius: 50%; display: block; }
    .mock-bar i:nth-child(1) { background: #FF5F57; }
    .mock-bar i:nth-child(2) { background: #FEBC2E; }
    .mock-bar i:nth-child(3) { background: #28C840; }
    .mock-bar .mock-title { margin-left: 10px; font-size: 12px; color: var(--muted); }
    .mock-body { display: flex; min-height: 330px; }
    .mock-side {
      width: 208px; flex-shrink: 0;
      border-right: 1px solid var(--panel-border);
      padding: 16px 12px; font-size: 13px;
    }
    .mock-side .item {
      display: flex; align-items: center; gap: 9px;
      padding: 8px 10px; border-radius: 9px; color: var(--muted);
    }
    .mock-side .item.on {
      background: rgba(201, 162, 75, 0.16); color: var(--text); font-weight: 600;
    }
    .mock-side .item .n {
      margin-left: auto; font-size: 10.5px; padding: 1px 8px; border-radius: 999px;
      background: rgba(201, 162, 75, 0.2); color: #E6CD8F;
    }
    .mock-main { flex: 1; padding: 18px 20px; }
    .mock-search {
      border: 1px solid var(--panel-border); border-radius: 999px;
      padding: 8px 16px; font-size: 12.5px; color: var(--muted);
      background: rgba(255,255,255,.03); margin-bottom: 14px;
    }
    .mock-row {
      display: flex; align-items: center; gap: 12px;
      padding: 11px 12px; border-radius: 12px;
      border: 1px solid transparent;
    }
    .mock-row.hl { background: rgba(201, 162, 75, 0.1); border-color: rgba(201, 162, 75, 0.25); }
    .mock-row .av {
      width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0;
      display: flex; align-items: center; justify-content: center; font-size: 16px;
    }
    .mock-row .t { font-size: 13.5px; font-weight: 600; }
    .mock-row .s { font-size: 11.5px; color: var(--muted); }
    .mock-row .act {
      margin-left: auto; font-size: 11.5px; font-weight: 700;
      background: var(--grad); color: #fff;
      border-radius: 999px; padding: 5px 14px;
      box-shadow: 0 4px 14px rgba(201, 162, 75, 0.4);
    }
    @media (max-width: 640px) {
      .mock-side { display: none; }
    }

    /* セクション共通 */
    section.block { padding: 84px 0 0; }
    .sec-head { text-align: center; max-width: 620px; margin: 0 auto 40px; }
    .sec-head .eyebrow {
      font-size: 12.5px; font-weight: 700; letter-spacing: .18em;
      color: var(--acc1); text-transform: uppercase;
    }
    .sec-head h2 { font-size: clamp(24px, 5vw, 34px); font-weight: 800; margin-top: 10px; line-height: 1.4; }
    .sec-head p { color: var(--muted); font-size: 14.5px; margin-top: 12px; }

    /* 機能グリッド */
    .features {
      display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 16px;
    }
    .feature {
      background: var(--panel);
      border: 1px solid var(--panel-border);
      border-radius: 18px; padding: 26px 24px;
      transition: border-color .2s, transform .2s, box-shadow .2s;
    }
    .feature:hover {
      border-color: rgba(201, 162, 75, 0.45);
      transform: translateY(-3px);
      box-shadow: 0 16px 50px rgba(201, 162, 75, 0.15);
    }
    .feature .icon {
      width: 46px; height: 46px; border-radius: 13px;
      display: flex; align-items: center; justify-content: center;
      font-size: 22px;
      background: linear-gradient(135deg, rgba(201,162,75,.22), rgba(18,44,79,.18));
      border: 1px solid rgba(201, 162, 75, 0.3);
    }
    .feature h3 { font-size: 16px; margin: 14px 0 6px; }
    .feature p { font-size: 13.5px; color: var(--muted); }

    /* ゼロ知識の図 */
    .zero {
      margin-top: 8px;
      background: var(--panel); border: 1px solid var(--panel-border);
      border-radius: 22px; padding: 40px 28px;
    }
    .zero-flow {
      display: flex; align-items: center; justify-content: center; gap: 14px;
      flex-wrap: wrap; margin-top: 8px;
    }
    .zero-node { text-align: center; }
    .zero-node .box {
      width: 120px; padding: 18px 10px;
      border-radius: 16px; border: 1px solid var(--panel-border);
      background: rgba(255,255,255,.03);
      font-size: 30px;
    }
    .zero-node.safe .box { border-color: rgba(52, 211, 153, 0.45); box-shadow: 0 0 30px rgba(52, 211, 153, 0.12); }
    .zero-node .cap { font-size: 12.5px; color: var(--muted); margin-top: 10px; line-height: 1.5; }
    .zero-node .cap b { color: var(--text); }
    .zero-arrow { font-size: 20px; color: var(--acc1); }
    .zero-note {
      text-align: center; margin-top: 26px; font-size: 13.5px; color: var(--muted);
      max-width: 560px; margin-left: auto; margin-right: auto;
    }
    .zero-note b { color: #34D399; }

    /* 乗り換え */
    .switch {
      display: flex; align-items: center; gap: 28px; flex-wrap: wrap;
      background: var(--panel); border: 1px solid var(--panel-border);
      border-radius: 22px; padding: 36px 32px;
    }
    .switch .left { flex: 1; min-width: 260px; }
    .switch h2 { font-size: 22px; font-weight: 800; }
    .switch p { color: var(--muted); font-size: 14px; margin-top: 10px; }
    .switch .steps { flex: 1; min-width: 240px; display: flex; flex-direction: column; gap: 12px; }
    .step { display: flex; gap: 12px; align-items: flex-start; font-size: 13.5px; }
    .step .num {
      width: 24px; height: 24px; flex-shrink: 0; border-radius: 50%;
      background: var(--grad); color: #fff; font-size: 12px; font-weight: 800;
      display: flex; align-items: center; justify-content: center; margin-top: 2px;
    }
    .step .muted { color: var(--muted); font-size: 12px; }

    /* 最終CTA */
    .final { text-align: center; padding: 96px 0 90px; }
    .final h2 { font-size: clamp(26px, 6vw, 40px); font-weight: 900; line-height: 1.35; }
    .final h2 .grad {
      background: var(--grad);
      -webkit-background-clip: text; background-clip: text; color: transparent;
    }
    .final p { color: var(--muted); margin-top: 12px; font-size: 14.5px; }

    footer {
      border-top: 1px solid var(--panel-border);
      padding: 30px 0 46px; text-align: center;
      color: var(--muted); font-size: 12.5px;
    }
    footer a { color: var(--acc1); text-decoration: none; margin: 0 8px; }

    /* スクロールフェードイン */
    .fade { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
    .fade.in { opacity: 1; transform: none; }
    @media (prefers-reduced-motion: reduce) {
      .fade { opacity: 1; transform: none; transition: none; }
    }

/* インラインstyleはCSPで禁止のためクラスで色付け */
.av-indigo { background: rgba(201, 162, 75, 0.2); }
.av-pink   { background: rgba(18, 44, 79, 0.16); }
.av-green  { background: rgba(52, 211, 153, 0.14); }
.av-amber  { background: rgba(251, 191, 36, 0.14); }
.foot-links { margin-top: 6px; }

/* ---- 料金セクション ---- */
.price-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 28px; }
.price-card {
  background: var(--panel); border: 1px solid var(--panel-border);
  border-radius: 16px; padding: 28px 26px;
}
.price-pro { border-color: rgba(201, 162, 75, 0.55); position: relative; }
.price-pro::before {
  content: "おすすめ"; position: absolute; top: -12px; left: 22px;
  background: var(--grad); color: #0B0D17; font-size: 12px; font-weight: 700;
  padding: 2px 12px; border-radius: 999px;
}
.price-name { font-size: 15px; font-weight: 700; color: var(--muted); letter-spacing: 0.08em; }
.price-amount {
  font-size: 40px; font-weight: 800; margin: 6px 0 14px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.price-unit { font-size: 16px; font-weight: 600; }
.price-list { list-style: none; display: grid; gap: 8px; font-size: 14.5px; color: var(--text); }
.price-list li::before { content: "✓ "; color: var(--acc1); font-weight: 700; }
.price-note { margin-top: 18px; font-size: 13px; color: var(--muted); text-align: center; }
@media (max-width: 720px) { .price-grid { grid-template-columns: 1fr; } }