*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,Apple Color Emoji,Segoe UI Emoji,sans-serif;background:#fafaf9;color:#1a1a1a;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}.nav{display:flex;align-items:center;justify-content:space-between;padding:20px 32px;max-width:1100px;margin:0 auto}.brand{font-weight:700;font-size:22px;letter-spacing:-.02em}.nav-right{display:flex;align-items:center;gap:16px}.lang-toggle{font-size:14px;opacity:.7}.lang-toggle a{text-decoration:underline;text-underline-offset:3px}.lang-toggle .active{font-weight:600;opacity:1}.container{max-width:1100px;margin:0 auto;padding:0 32px}.hero{padding:80px 0 60px;text-align:center}.hero h1{font-size:clamp(36px,6vw,64px);line-height:1.1;letter-spacing:-.03em;margin:0 0 24px;font-weight:800}.hero p{font-size:20px;color:#555;max-width:640px;margin:0 auto 40px}.btn{display:inline-block;background:#1a1a1a;color:#fff;padding:16px 32px;border-radius:12px;font-weight:600;border:none;font-size:16px;transition:transform .1s,background .2s}.btn:hover{background:#000;transform:translateY(-1px)}.btn:disabled{background:#999;cursor:not-allowed;transform:none}.btn-secondary{background:transparent;color:#1a1a1a;border:1px solid #1a1a1a;padding:14px 28px;border-radius:12px;font-weight:600;font-size:16px}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));grid-gap:32px;gap:32px;padding:60px 0}.feature{background:#fff;border:1px solid #e5e5e5;border-radius:16px;padding:28px}.feature h3{font-size:18px;margin:0 0 8px;font-weight:700}.feature p{color:#555;margin:0;font-size:15px}.demo{padding:40px 0 80px;text-align:center}.demo-frame{max-width:900px;margin:0 auto;background:linear-gradient(180deg,#fff,#f4f4f3);border:1px solid #e5e5e5;border-radius:16px;padding:32px;box-shadow:0 30px 60px -20px rgba(0,0,0,.12)}.demo-frame h4{font-size:14px;font-weight:600;color:#888;margin:0 0 16px;text-transform:uppercase;letter-spacing:.1em}.demo-frame pre{text-align:left;background:#1a1a1a;color:#d4d4d4;padding:20px;border-radius:8px;font-size:13px;line-height:1.6;overflow-x:auto;margin:0}.demo-frame .accent{color:#7ee787}.pricing{padding:80px 0;text-align:center;background:#1a1a1a;color:#fff;border-radius:32px 32px 0 0;margin-top:60px}.pricing h2{font-size:32px;margin:0 0 8px;font-weight:800;letter-spacing:-.02em}.pricing .price{font-size:64px;font-weight:800;margin:24px 0 8px;letter-spacing:-.04em}.pricing .sub{color:#999;margin-bottom:32px}.faq{padding:60px 0}.faq h2{text-align:center;font-size:32px;margin-bottom:32px}.faq-item{border-bottom:1px solid #e5e5e5;padding:20px 0}.faq-item h4{margin:0 0 8px;font-size:17px}.faq-item p{margin:0;color:#555}.footer{padding:40px 0;color:#888;border-top:1px solid #e5e5e5}.demo-banner,.footer{text-align:center;font-size:14px}.demo-banner{background:#fff8c5;border-bottom:1px solid #f5d800;padding:10px 16px;color:#57480b}