:root{--primary:#2458dd;--background:#f3f6fb;--surface:#fff;--ink:#172440;--muted:#52627b;--border:#d8e1ef;font-family:system-ui,sans-serif;color:var(--ink);background:var(--background);scrollbar-color:#8799b5 var(--background);scrollbar-width:thin}*{box-sizing:border-box}body{margin:0}a{color:var(--primary);text-underline-offset:4px}button,a,input,select{touch-action:manipulation}button,select,summary{cursor:pointer}button:disabled{cursor:wait;opacity:.55}button:hover,.download:hover{filter:brightness(.94)}a:hover{text-decoration:underline}button:active{transform:translateY(1px)}:focus-visible{outline:3px solid #729aff;outline-offset:4px}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--background)}::-webkit-scrollbar-thumb{background:#8799b5;border-radius:8px}::-webkit-scrollbar-thumb:hover{background:#52627b}::-webkit-scrollbar-thumb:active{background:var(--ink)}header,main,footer{max-width:1120px;margin:auto}header{height:88px;display:flex;align-items:center;justify-content:space-between;padding:0 24px}.brand{display:flex;gap:10px;align-items:center;color:var(--ink);font-weight:800;font-size:21px;letter-spacing:-1px;text-decoration:none}.logo{background:var(--primary);color:#fff;border-radius:9px;padding:3px 9px;font-size:23px}nav{display:flex;gap:24px;font-size:14px}nav a{color:var(--muted);text-decoration:none}main{padding:32px 24px 64px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--primary);text-transform:uppercase}h1{font:700 clamp(38px,6vw,64px)/1.08 Arial,sans-serif;letter-spacing:-2.7px;margin:20px 0 16px}h1 em{font-style:normal;color:var(--primary)}.intro{max-width:640px;font-size:17px;line-height:1.7;color:var(--muted);margin-bottom:32px}.tool{background:var(--surface);border:1px solid var(--border);border-radius:20px;box-shadow:0 16px 45px #17244008;overflow:hidden}.toolbar{padding:16px 24px;display:flex;gap:16px;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);font-size:13px}.badge{display:inline-flex;gap:8px;align-items:center;color:#23663d;font-size:12px}.badge:before{content:"";height:7px;width:7px;border-radius:50%;background:#378751}.workspace{display:grid;grid-template-columns:1.6fr 1fr;min-height:370px}.media{padding:24px;display:flex;flex-direction:column;gap:16px;background:#f9fbfe}.drop{flex:1;min-height:260px;border:1.5px dashed #abbcda;border-radius:12px;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:24px;position:relative;background:repeating-linear-gradient(90deg,#edf2fc 0,#edf2fc 40px,#f6f9ff 40px,#f6f9ff 44px);gap:10px}.drop.drag{outline:3px solid var(--primary)}.play{width:62px;height:62px;border:2px solid var(--primary);border-radius:18px;color:var(--primary);font-size:29px;display:grid;place-items:center;background:#fff;margin-bottom:6px}.drop strong{font-size:18px}.hint{font-size:12px;color:var(--muted);line-height:1.6}.button,button,.download{font:600 14px system-ui;border:0;border-radius:10px;background:var(--primary);color:#fff;padding:13px 20px;text-decoration:none;display:inline-block;text-align:center}input[type=file]{width:100%;font-size:12px;color:var(--muted)}input::file-selector-button{font:600 13px system-ui;padding:10px 14px;border:1px solid var(--border);border-radius:8px;color:var(--primary);background:#fff;cursor:pointer;margin-right:12px}video,.result img{width:100%;max-height:300px;object-fit:contain;border-radius:10px;background:#e9eef7}video[hidden],.result[hidden],[hidden]{display:none!important}.settings{padding:24px;border-left:1px solid var(--border)}.settings h2{font-size:15px;margin:0 0 24px}.fields{display:grid;grid-template-columns:1fr 1fr;gap:18px 12px}label{font-size:12px;color:var(--muted);display:flex;gap:8px;flex-direction:column}input[type=number],select{width:100%;min-height:42px;background:#fff;color:var(--ink);border:1px solid var(--border);border-radius:8px;padding:10px;font:14px system-ui}.actions{display:flex;gap:8px;margin-top:24px}.actions button:first-child{flex:1}.secondary{background:#e9effc;color:var(--primary)}#status{min-height:42px;font-size:13px;line-height:1.6;margin:14px 0 0;color:var(--muted)}#status.error{color:#a42b38}progress{width:100%;height:6px;accent-color:var(--primary)}.result{padding:24px;border-top:1px solid var(--border);display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}.result h3{margin-top:0}.result p{color:var(--muted);font-size:14px}.trust{display:flex;justify-content:center;gap:40px;font-size:12px;color:var(--muted);padding:20px 0 48px}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin:24px 0 48px}.steps h3{font-size:16px}.steps p,p,li{font-size:15px;line-height:1.8;color:var(--muted)}.stepnum{font:12px ui-monospace,monospace;color:var(--primary)}h2{font:700 26px Arial,sans-serif;letter-spacing:-.6px}details{border-bottom:1px solid var(--border);padding:18px 0}summary{font-size:15px;font-weight:600}details p{max-width:800px}footer{border-top:1px solid var(--border);padding:28px 24px 40px;display:flex;justify-content:space-between;gap:24px;font-size:12px;color:var(--muted)}footer .links{display:flex;gap:18px;flex-wrap:wrap}.article{max-width:760px;min-height:60vh}.article h1{font-size:44px}.article h2{margin-top:32px}.article a{font-size:15px}.related{margin-top:40px}noscript{display:block;padding:15px;background:#fff0c9}@media(max-width:760px){header{height:auto;min-height:80px;align-items:flex-start;padding-top:20px;gap:20px}.brand{font-size:18px;white-space:nowrap}nav{flex-wrap:wrap;gap:10px 16px;font-size:12px;justify-content:flex-end}main{padding-top:24px}.workspace{grid-template-columns:1fr}.settings{border-left:0;border-top:1px solid var(--border)}h1{letter-spacing:-1.6px}.intro{font-size:15px}.tool-header{font-size:12px}.toolbar{padding:16px}.badge{font-size:11px}.trust{gap:16px;flex-wrap:wrap;padding-bottom:28px}.steps{grid-template-columns:1fr;gap:10px}.result{grid-template-columns:1fr}footer{flex-direction:column}.drop{min-height:220px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}@media(forced-colors:active){:root{scrollbar-color:auto}.button,button{border:1px solid ButtonText}}
