:root{--accent: #208aef;--accent-strong: #0a84ff;--warm: #ff9f0a;--bg: #ffffff;--bg-element: #f0f0f3;--bg-selected: #e0e1e6;--text: #11181c;--text-secondary: #60646c;--border: rgba(0, 0, 0, .08);--shadow: 0 10px 40px rgba(0, 0, 0, .08);--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--radius: 16px;--max-width: 960px}@media(prefers-color-scheme:dark){:root{--bg: #000000;--bg-element: #212225;--bg-selected: #2e3135;--text: #ecedee;--text-secondary: #b0b4ba;--border: rgba(255, 255, 255, .1);--shadow: 0 10px 40px rgba(0, 0, 0, .5)}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-sans);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}section{padding:80px 0}.site-header{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--border)}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:64px}.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.1rem}.brand img{width:32px;height:32px;border-radius:8px}.nav-links{display:flex;align-items:center;gap:24px;font-size:.95rem}.nav-links a:hover{color:var(--accent)}.lang-switch{display:flex;gap:6px;font-size:.85rem}.lang-switch a{padding:4px 8px;border-radius:8px;color:var(--text-secondary)}.lang-switch a[aria-current=true]{background:var(--bg-element);color:var(--text);font-weight:600}@media(max-width:640px){.nav-links .nav-anchor{display:none}}.hero{position:relative;text-align:center;padding:96px 0 88px;overflow:hidden}.hero:before{content:"";position:absolute;inset:-40% 0 auto;height:480px;background:radial-gradient(60% 60% at 50% 0%,color-mix(in srgb,var(--accent) 22%,transparent),transparent 70%);pointer-events:none;z-index:-1}.hero img.app-icon{width:96px;height:96px;border-radius:22px;margin:0 auto 28px;box-shadow:var(--shadow)}.badge{display:inline-block;font-size:.8rem;font-weight:600;color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent);padding:6px 14px;border-radius:999px;margin-bottom:24px}.hero h1{font-size:clamp(2.4rem,6vw,3.8rem);font-weight:800;max-width:14ch;margin:0 auto 20px}.hero p.lead{font-size:clamp(1.05rem,2.5vw,1.3rem);color:var(--text-secondary);max-width:52ch;margin:0 auto 36px}.hero .hero-note{margin-top:18px;font-size:.9rem;color:var(--text-secondary)}.btn-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:1rem;padding:12px 22px;border-radius:12px;border:1px solid transparent;transition:transform .15s ease,opacity .15s ease,background .15s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-strong)}.btn-store{background:var(--bg-element);color:var(--text);border-color:var(--border);flex-direction:column;align-items:flex-start;gap:2px;min-width:150px}.btn-store .store-platform{font-size:1.05rem;font-weight:700}.btn-store .store-sub{font-size:.78rem;font-weight:500;color:var(--text-secondary)}.btn-store[aria-disabled=true]{opacity:.55;cursor:not-allowed;pointer-events:none}.section-heading{text-align:center;font-size:clamp(1.8rem,4vw,2.4rem);font-weight:800;margin-bottom:48px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}.step{background:var(--bg-element);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px}.step .step-num{counter-increment:step;display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff;font-weight:700;margin-bottom:16px}.step .step-num:before{content:counter(step)}.step h3{font-size:1.15rem;margin-bottom:8px}.step p{margin:0;color:var(--text-secondary);font-size:.98rem}.features{background:var(--bg-element)}.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.feature{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px}.feature h3{font-size:1.15rem;margin-bottom:8px}.feature p{margin:0;color:var(--text-secondary);font-size:.98rem}.download{text-align:center}.download p.lead{color:var(--text-secondary);max-width:46ch;margin:0 auto 36px;font-size:1.1rem}.site-footer{border-top:1px solid var(--border);padding:48px 0;color:var(--text-secondary);font-size:.9rem}.site-footer .container{display:flex;flex-direction:column;gap:12px;align-items:center;text-align:center}.site-footer .brand{font-size:1rem;color:var(--text)}@media(max-width:720px){.steps,.feature-grid{grid-template-columns:1fr}section{padding:56px 0}}