:root{--primary:#2563eb;--primary-hover:#1d4ed8;--primary-light:#eff6ff;--text:#64748b;--text-h:#0f172a;--bg:#fff;--border:#e2e8f0;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Pretendard,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:16px;line-height:1.5}*,:before,:after{box-sizing:border-box}body,h1,h2,h3,h4,h5,h6,p{margin:0}a{color:inherit;text-decoration:none}.material-symbols-outlined{letter-spacing:normal;text-transform:none;white-space:nowrap;word-wrap:normal;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;direction:ltr;font-family:Material Symbols Outlined;font-size:24px;font-style:normal;font-weight:400;line-height:1;display:inline-block}.app{flex-direction:column;min-height:100vh;display:flex}.nav{z-index:100;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);background:#ffffffd9;position:sticky;top:0}.nav-inner{justify-content:space-between;align-items:center;max-width:1126px;height:64px;margin:0 auto;padding:0 24px;display:flex}.nav-brand{align-items:center;gap:10px;display:flex}.nav-logo{background:var(--primary);color:#fff;letter-spacing:0;border-radius:8px;justify-content:center;align-items:center;width:32px;height:32px;font-size:14px;font-weight:700;display:flex}.nav-title{color:var(--text-h);font-size:18px;font-weight:600}.nav-links{gap:32px;display:flex}.nav-links a{color:var(--text);font-size:15px;text-decoration:none;transition:color .2s}.nav-links a:hover{color:var(--primary)}.lang-btn{border:1px solid var(--border);color:var(--text);cursor:pointer;background:0 0;border-radius:6px;padding:6px 14px;font-size:13px;transition:all .2s}.lang-btn:hover{border-color:var(--primary);color:var(--primary)}.hero{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:120px 24px 80px;display:flex}.hero-badge{background:var(--primary-light);color:var(--primary);border-radius:999px;margin-bottom:24px;padding:4px 12px;font-size:13px;font-weight:500;display:inline-flex}.hero-title{letter-spacing:-2px;color:var(--text-h);margin:0 0 12px;font-size:64px;font-weight:700;line-height:1.1}.hero-subtitle{color:var(--text);margin:0 0 16px;font-size:22px;font-weight:400}.hero-desc{color:var(--text);max-width:520px;margin:0 0 36px;font-size:16px;line-height:1.6}.hero-actions{gap:12px;margin-bottom:20px;display:flex}.btn{border-radius:8px;align-items:center;padding:12px 28px;font-size:15px;font-weight:600;text-decoration:none;transition:all .2s;display:inline-flex}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px)}.btn-secondary{background:var(--bg);color:var(--text-h);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--primary);color:var(--primary)}.hero-platforms{color:var(--text);font-size:13px}.features{box-sizing:border-box;width:100%;max-width:960px;margin:0 auto;padding:80px 24px}.section-title{text-align:center;color:var(--text-h);margin:0 0 48px;font-size:32px;font-weight:700}.features-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.feature-card{border:1px solid var(--border);text-align:left;border-radius:12px;padding:28px 24px;transition:box-shadow .2s,transform .2s}.feature-card:hover{transform:translateY(-2px);box-shadow:0 4px 20px #0000000f}.feature-icon{color:var(--primary);margin-bottom:12px;font-size:28px;display:inline-block}.feature-card h3{color:var(--text-h);margin:0 0 8px;font-size:17px;font-weight:600}.feature-card p{color:var(--text);margin:0;font-size:14px;line-height:1.5}.download{box-sizing:border-box;text-align:center;width:100%;max-width:960px;margin:0 auto;padding:80px 24px 100px}.download-desc{color:var(--text);margin:-32px 0 40px;font-size:16px}.download-grid{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}.download-card{border:1px solid var(--border);border-radius:12px;flex-direction:column;align-items:center;gap:10px;padding:28px 16px;text-decoration:none;transition:all .2s;display:flex}.download-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 20px #2563eb1a}.download-icon{color:var(--primary);display:flex}.download-label{color:var(--text-h);font-size:15px;font-weight:600}.download-ext{color:var(--text);background:var(--primary-light);border-radius:4px;padding:2px 8px;font-size:12px}.download-note{color:var(--text);margin-top:32px;font-size:14px}.footer{border-top:1px solid var(--border);padding:24px}.footer-inner{max-width:1126px;color:var(--text);justify-content:space-between;align-items:center;margin:0 auto;font-size:14px;display:flex}.footer-inner a{color:var(--text);text-decoration:none;transition:color .2s}.footer-inner a:hover{color:var(--primary)}@media (width<=768px){.hero-title{letter-spacing:-1px;font-size:40px}.hero-subtitle{font-size:18px}.hero-actions{flex-direction:column;width:100%;max-width:320px}.btn{justify-content:center}.features-grid{grid-template-columns:1fr}.download-grid{grid-template-columns:repeat(2,1fr)}.nav-links{display:none}}