:root{font-family:Inter,"Microsoft YaHei",sans-serif;color:#202938;background:#f7f8fc;--accent:#6858df;--muted:#7b8291;--line:#e4e5ee}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 85% 25%,#eaeaff88,transparent 45%)}.shell{max-width:1080px;margin:auto;padding:0 36px}header{height:82px;display:flex;align-items:center;justify-content:space-between}a{color:var(--accent)}.brand{text-decoration:none;color:#202938;display:flex;align-items:center;gap:9px;font-size:23px;font-weight:800;letter-spacing:-1px}.brand b{display:grid;place-items:center;width:35px;height:35px;border-radius:11px;background:var(--accent);color:white;font-size:28px}.brand small{font-size:9px;letter-spacing:1px;border:1px solid #d9d8e8;padding:3px 5px;border-radius:5px;color:#898398}header>span{font-size:12px;color:var(--muted)}main{max-width:740px;margin:36px auto 42px}.hero{text-align:center;margin-bottom:28px}.eyebrow{font-size:11px;letter-spacing:2px;color:#898399}h1{font-size:42px;line-height:1.3;letter-spacing:-2px;margin:13px 0}h1 em{font-style:normal;color:var(--accent)}.hero p{font-size:14px;line-height:1.7;color:var(--muted);margin:12px 0}.platforms{display:flex;justify-content:center;gap:20px;align-items:center;margin-top:19px;font-size:12px}.platforms small{color:#8b91a0;border-left:1px solid #dcdfea;padding-left:18px}.card{background:white;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 12px 36px #25225406}.field-heading{display:flex;justify-content:space-between;align-items:center}label{font-size:12px;font-weight:700}#detected-platform{font-size:11px;color:var(--accent)}textarea{display:block;width:100%;resize:vertical;min-height:78px;max-height:220px;border:1px solid transparent;background:#f7f8fb;border-radius:10px;margin:12px 0 8px;padding:14px;font:inherit;font-size:14px;line-height:1.7;color:#343b4c}textarea::placeholder{color:#989fac}.input-tools{display:flex;gap:16px;justify-content:flex-end;margin-bottom:15px}.actions{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;border-top:1px solid #f0f0f6;padding-top:16px}.actions>button{flex-shrink:0}.settings{flex:1;min-width:0;font-size:12px;color:var(--muted);margin-top:11px}.settings>summary{cursor:pointer;color:#6d648c;list-style:none}.settings>summary::before{content:"＋";margin-right:5px}.settings[open]>summary::before{content:"−"}.settings-body{padding-top:14px}.settings-body>label{display:block;margin-bottom:8px}.settings input{width:100%;padding:11px;font:inherit;border:1px solid #dadde8;border-radius:8px}.cookie-actions{display:flex;align-items:center;gap:10px;justify-content:space-between;margin-top:9px}.cookie-actions small{font-size:10px;line-height:1.6}.cookie-help{font-size:11px;margin-top:12px;line-height:1.8}.cookie-help summary{cursor:pointer;color:var(--accent)}.cookie-help p{color:var(--muted)}button{border:0;border-radius:10px;padding:13px 22px;background:var(--accent);color:white;font:inherit;font-size:13px;font-weight:700;cursor:pointer}button:hover{background:#5443cc}button:disabled{opacity:.55;cursor:wait}.text-button{padding:0;background:transparent;color:var(--accent);font-size:11px;font-weight:500;border-radius:3px}.text-button:hover{background:transparent;color:#4535bf;text-decoration:underline}.muted{color:#858b9b}#status{font-size:12px;line-height:1.7;color:#6b60bf;min-height:20px;margin:12px 3px}#status.error,#download-status.error{color:#b63e54}#result{margin:16px 0 26px}.summary{display:flex;gap:17px;align-items:center}.cover-wrap{width:132px;height:90px;flex-shrink:0;position:relative;background:linear-gradient(130deg,#ece9ff,#f4f1fc);border-radius:10px;overflow:hidden}.cover-placeholder{position:absolute;inset:0;display:grid;place-items:center;color:#b2a6e5;font-size:24px}.cover-wrap img{position:relative;width:100%;height:100%;object-fit:cover}.tag{font-size:10px;background:#f2efff;color:var(--accent);padding:4px 7px;border-radius:5px}.video-info{min-width:0}.summary h2{font-size:16px;line-height:1.5;margin:8px 0 5px;overflow-wrap:anywhere}.summary p,.summary a{font-size:11px;line-height:1.7}.summary p{margin:0 0 4px;color:var(--muted)}select{display:block;width:100%;padding:12px;border:1px solid #dbdde9;border-radius:9px;background:white;font:inherit;font-size:12px;color:#354055;margin-top:8px;cursor:pointer}.page-field{display:block;margin-top:22px}.download-panel{display:flex;gap:14px;align-items:flex-end;margin-top:22px;padding-top:20px;border-top:1px solid #eeeff5}.quality-field{flex:1;min-width:0}#download-button{min-height:42px;white-space:nowrap;padding:13px 25px}.note{color:var(--muted);font-size:11px;line-height:1.8;margin:10px 0 0}#download-hint{min-height:20px}#more-downloads{margin-top:18px;border-top:1px solid #eeeff5;padding-top:16px;font-size:11px}#more-downloads>summary{cursor:pointer;color:#7c8092}#downloads{display:grid;gap:9px;margin-top:14px}.advanced-row{display:flex;align-items:center;gap:12px;padding:10px 12px;background:#f8f9fc;border-radius:8px}.advanced-row>span{flex:1;min-width:0;font-size:11px;line-height:1.7}.advanced-row a{font-size:11px;white-space:nowrap}.progress-steps{display:flex;padding:0;margin:18px 0 12px;gap:8px;list-style:none}.progress-steps li{flex:1;font-size:10px;color:#9a9dad;border-top:3px solid #edecf4;padding-top:8px}.progress-steps li.active{border-color:var(--accent);color:var(--accent);font-weight:700}.progress-steps li.done{border-color:#5fae94;color:#4d967e}progress{appearance:none;width:100%;height:5px;display:block;border:0;background:#ecebf4;border-radius:10px;overflow:hidden}progress::-webkit-progress-bar{background:#ecebf4}progress::-webkit-progress-value{background:var(--accent);transition:width .2s}progress:not([value]){background:linear-gradient(90deg,#ecebf4,#aa9ef0,#ecebf4);background-size:200%;animation:loading 1.5s infinite}#download-status{font-size:11px;color:var(--accent);line-height:1.8;margin:9px 0 0}.steps{display:flex;justify-content:space-between;gap:15px;margin:30px 0;font-size:11px;color:var(--muted)}.steps b{font-size:10px;color:#a59abb;font-weight:500;margin-right:7px}aside{border-top:1px solid var(--line);padding-top:19px;color:#949aaa;font-size:10px;line-height:1.9}footer{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:22px 0;font-size:10px;color:#8d93a2}[hidden]{display:none!important}:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@keyframes loading{to{background-position:-200% 0}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}@media(max-width:600px){.shell{padding:0 18px}header{height:70px}header>span{display:none}main{margin:24px auto 32px}h1{font-size:30px;letter-spacing:-1px}.hero p{font-size:12px}.platforms{gap:13px;font-size:11px}.platforms small{font-size:10px;padding-left:12px}.card{padding:18px}.actions{gap:12px}.cover-wrap{width:86px;height:86px}.summary{gap:12px}.summary h2{font-size:14px}.download-panel{flex-direction:column;align-items:stretch}.quality-field{width:100%}#download-button{width:100%}.advanced-row{flex-wrap:wrap}.advanced-row>span{flex-basis:100%}.steps{font-size:10px;gap:8px}.steps b{display:block;margin-bottom:6px}footer{gap:15px;font-size:9px}.cookie-actions{align-items:flex-start}}
.platforms>span{display:inline-flex;align-items:center;gap:6px}.platform-icon{display:block;width:19px;height:19px;flex-shrink:0}