:root{--cream: #f5f2ee;--cream-deep: #ece7df;--ink: #1c1c1e;--ink-soft: #3a3a3c;--accent: #aaff45;--accent-deep: #8fe02f;--white: #ffffff;--muted: #8e8e93;--line: #e5e5ea;--green: #34c759;--red: #ff4d4d;--amber: #f5a623;--canvas-dark: #1a1a2e;--radius: 16px;--radius-lg: 24px;--shadow-card: 0 4px 18px rgba(0, 0, 0, .08);--shadow-raised: 0 12px 40px rgba(0, 0, 0, .14);--maxw: 1080px;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-jp: "Noto Sans JP", var(--font-sans)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-sans);background:var(--cream);color:var(--ink);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;line-height:1.55}a{color:inherit}h1,h2,h3{margin:0;line-height:1.12;letter-spacing:-.02em}.section{width:100%;padding:0 24px}.wrap{max-width:var(--maxw);margin:0 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ease}.btn-primary{background:var(--ink);color:var(--white);box-shadow:var(--shadow-card)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-raised)}.btn-primary:active{transform:scale(.98);opacity:.85}.phone{justify-self:center;width:270px;aspect-ratio:9 / 19.5;background:var(--cream);border-radius:44px;border:10px solid var(--ink);box-shadow:var(--shadow-raised);padding:22px 18px;display:flex;flex-direction:column;align-items:center;position:relative}.phone:before{content:"";position:absolute;top:14px;left:50%;transform:translate(-50%);width:92px;height:22px;background:var(--ink);border-radius:999px}.phone-title{font-family:var(--font-jp);font-weight:700;font-size:22px;letter-spacing:.16em;margin:44px 0 26px}.phone-btns{width:100%;display:flex;flex-direction:column;gap:12px}.phone-btn{background:var(--ink);color:var(--white);border-radius:13px;padding:17px;text-align:center;font-size:13px;font-weight:600;letter-spacing:.5px}.demo{padding:8px 24px 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