:root{--brand:#6366f1;--brand-dark:#4f46e5;--bg:#f8fafc;--text:#0f172a;--muted:#64748b;--card:#fff;--border:#e2e8f0;--success:#10b981;--error:#ef4444}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}img,video{max-width:100%;height:auto;display:block}.header{background:var(--card);border-bottom:1px solid var(--border);z-index:50;padding:14px 20px;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;max-width:960px;margin:0 auto;display:flex}.logo{color:var(--text);align-items:center;gap:8px;font-size:1.25rem;font-weight:800;display:flex}.logo span{background:var(--brand);color:#fff;border-radius:8px;place-items:center;width:28px;height:28px;font-size:14px;display:grid}.nav a{color:var(--muted);margin-left:20px;font-size:.9rem;font-weight:500}.nav a:hover{color:var(--brand);text-decoration:none}.hero{text-align:center;max-width:720px;margin:0 auto;padding:48px 20px 32px}.hero h1{letter-spacing:-.02em;margin-bottom:12px;font-size:clamp(1.75rem,5vw,2.5rem);font-weight:800;line-height:1.2}.hero h1 em{background:linear-gradient(135deg,#6366f1,#8b5cf6);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-style:normal}.hero>p{color:var(--muted);margin-bottom:28px;font-size:1.05rem}.badges{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:28px;display:flex}.badge{color:var(--brand-dark);background:#eef2ff;border-radius:999px;padding:5px 12px;font-size:.75rem;font-weight:600}.input-card{background:var(--card);border:1px solid var(--border);border-radius:16px;align-items:center;gap:8px;padding:8px 12px;display:flex;box-shadow:0 4px 24px #0000000f}.input-card input{color:var(--text);background:0 0;border:none;outline:none;flex:1;width:100%;min-width:0;padding:14px 8px;font-size:1rem}.input-card input::placeholder{color:#94a3b8}.input-actions{flex-shrink:0;align-items:center;gap:8px;display:flex}.spinner{border:2px solid #c7d2fe;border-top-color:var(--brand);border-radius:50%;width:18px;height:18px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.tick{color:var(--success);font-size:1.1rem;font-weight:700}.clear-btn{color:#94a3b8;cursor:pointer;background:#f1f5f9;border:none;border-radius:50%;place-items:center;width:28px;height:28px;font-size:1.1rem;line-height:1;display:grid}.clear-btn:hover{color:#64748b;background:#e2e8f0}.status{min-height:22px;margin-top:14px;font-size:.9rem}.status.loading{color:var(--brand)}.status.error{color:var(--error)}.result-card{background:var(--card);border:1px solid var(--border);text-align:left;border-radius:20px;max-width:640px;margin:28px auto 0;overflow:hidden;box-shadow:0 8px 32px #00000014}.result-layout{flex-direction:column;align-items:center;gap:20px;padding:20px;display:flex}@media (min-width:640px){.result-layout{flex-direction:row;justify-content:center;align-items:center;gap:28px;padding:24px}}.result-media{background:#0f172a;border-radius:16px;flex-shrink:0;width:100%;max-width:260px;overflow:hidden;box-shadow:0 4px 20px #0000001f}.result-media video{vertical-align:middle;background:#000;width:100%;max-height:420px;display:block}.result-actions-col{flex-direction:column;gap:12px;width:100%;max-width:240px;display:flex}.dl-btn{background:var(--brand);color:#fff;cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;width:100%;padding:14px 20px;font-size:.95rem;font-weight:600;transition:background .15s,transform .1s;display:flex}.dl-btn:hover{background:var(--brand-dark)}.dl-btn:active{transform:scale(.98)}.sec-btn{color:#475569;cursor:pointer;background:#f1f5f9;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;width:100%;padding:12px 20px;font-size:.9rem;font-weight:500;transition:background .15s;display:flex}.sec-btn:hover{color:var(--text);background:#e2e8f0}.status.success{color:var(--success)}.section{max-width:960px;margin:0 auto;padding:48px 20px}.section h2{text-align:center;margin-bottom:8px;font-size:1.5rem;font-weight:700}.section .sub{text-align:center;color:var(--muted);margin-bottom:32px;font-size:.95rem}.grid-3{grid-template-columns:1fr;gap:20px;display:grid}@media (min-width:700px){.grid-3{grid-template-columns:repeat(3,1fr)}}.card{background:var(--card);border:1px solid var(--border);text-align:center;border-radius:14px;padding:24px}.card .icon{background:#eef2ff;border-radius:12px;place-items:center;width:48px;height:48px;margin:0 auto 14px;font-size:1.4rem;display:grid}.card h3{margin-bottom:8px;font-size:1.05rem}.card p{color:var(--muted);font-size:.9rem}.steps{grid-template-columns:1fr;gap:16px;display:grid}@media (min-width:700px){.steps{grid-template-columns:repeat(3,1fr)}}.step{background:var(--card);border:1px solid var(--border);text-align:center;border-radius:14px;padding:20px}.step .num{background:var(--brand);color:#fff;border-radius:50%;place-items:center;width:36px;height:36px;margin:0 auto 12px;font-weight:700;display:grid}.step h3{margin-bottom:6px;font-size:1rem}.step p{color:var(--muted);font-size:.85rem}.faq details{background:var(--card);border:1px solid var(--border);border-radius:12px;margin-bottom:10px;padding:16px 18px}.faq summary{cursor:pointer;justify-content:space-between;align-items:center;font-weight:600;list-style:none;display:flex}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--muted);font-size:1.2rem}.faq details[open] summary:after{content:"−"}.faq details p{color:var(--muted);margin-top:12px;font-size:.9rem;line-height:1.55}.disclaimer{border-top:1px solid var(--border);text-align:center;color:var(--muted);background:#f1f5f9;padding:28px 20px;font-size:.8rem;line-height:1.6}footer{color:#94a3b8;background:#0f172a;padding:40px 20px 24px}.footer-inner{grid-template-columns:1fr;gap:28px;max-width:960px;margin:0 auto;display:grid}@media (min-width:700px){.footer-inner{grid-template-columns:2fr 1fr 1fr}}footer h4{color:#fff;margin-bottom:12px;font-size:.9rem}footer a{color:#94a3b8;margin-bottom:8px;font-size:.85rem;display:block}footer a:hover{color:#fff;text-decoration:none}.footer-bottom{text-align:center;border-top:1px solid #1e293b;max-width:960px;margin:28px auto 0;padding-top:20px;font-size:.75rem}.legal-wrap{max-width:720px;margin:0 auto;padding:40px 20px}.legal-wrap h1{margin-bottom:8px;font-size:1.75rem}.legal-wrap h2{margin:28px 0 10px;font-size:1.15rem}.legal-wrap p,.legal-wrap li{color:#475569;font-size:.95rem}.legal-wrap .back{margin-bottom:24px;font-size:.9rem;display:inline-block}