:root {
  --background: #f4f0e7;
  --foreground: #241f19;
  --accent: #9f2f28;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

.site-shell {
  width: min(1600px, 100%);
  margin: 0 auto;
  padding: 28px clamp(14px, 3vw, 44px) 44px;
}

.site-header { margin: 0 0 20px; }

.site-header h1 {
  margin: 4px 0 8px;
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.15;
  letter-spacing: .02em;
}

.site-header p {
  margin: 0;
  color: #62584d;
}

.site-header .eyebrow {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
}

.simulator-frame {
  display: block;
  width: 100%;
  min-height: 1400px;
  overflow: hidden;
  border: 1px solid #d8cfc2;
  border-radius: 16px;
  background: #fff;
}

@media (max-width: 700px) {
  .site-shell { padding-inline: 8px; }
  .simulator-frame {
    min-height: 1900px;
    border-radius: 10px;
  }
}