:root{color-scheme:dark;--bg:#10262e;--panel:#17333d;--muted:#a9bdc1;--cream:#f6f0e2;--mint:#c7e894;--line:#ffffff20;--ink:#20382d;font-family:system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;color:var(--cream);background:var(--bg)}
*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 70% 0,#254b4c 0,transparent 65%),var(--bg);min-height:100vh}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{min-height:48px;border:1px solid var(--line);border-radius:12px;padding:10px 16px;background:#ffffff09;color:inherit;cursor:pointer;font-weight:650;touch-action:manipulation}button:disabled{opacity:.38;cursor:default}button:hover:enabled{background:#ffffff16}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--mint);outline-offset:4px}a{color:inherit;text-underline-offset:4px}input[type=checkbox]{width:21px;height:21px;accent-color:var(--mint);flex-shrink:0}input:not([type=checkbox]):not([type=range]):not([type=file]),select,textarea{background:#10262e;color:var(--cream);border:1px solid #527078;border-radius:9px;min-height:48px;padding:10px;max-width:100%}select{cursor:pointer}textarea{width:100%;resize:vertical}[hidden]{display:none!important}.primary{background:var(--mint);color:var(--ink);border-color:transparent}.primary:hover:enabled{background:#d9f4ae}.topbar{max-width:1420px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px max(24px,env(safe-area-inset-right)) 20px max(24px,env(safe-area-inset-left));border-bottom:1px solid var(--line)}.back{font-size:14px;text-decoration:none;min-height:48px;display:flex;align-items:center}.studio-mark{font-size:15px;letter-spacing:3px;text-decoration:none}.studio-mark b{color:var(--mint)}.top-actions{display:flex;gap:8px}.top-actions button{font-size:14px}main{max-width:1320px;padding:32px 24px 60px;margin:auto}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:var(--mint);margin:0 0 12px;line-height:1.7}h1,h2,h3,p{margin-top:0}h1{font-size:34px;line-height:1.25;letter-spacing:-1px}h2{font-size:22px}h3{font-size:18px}.note,.source,.privacy-note{font-size:13px;color:var(--muted);line-height:1.7}
.library-hero{min-height:330px;position:relative;isolation:isolate;display:flex;align-items:center;padding:42px;border-radius:24px;overflow:hidden;background:#0e2029}.library-hero>div{max-width:600px;z-index:1}.library-hero h1{font-size:48px;line-height:1.2}.library-hero p:not(.eyebrow){color:#d4dfde;line-height:1.8}.library-hero img{position:absolute;inset:0 0 0 auto;width:60%;height:100%;object-fit:cover;z-index:-2}.library-hero:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#10262e 18%,#10262edb 42%,#10262e00 85%);z-index:-1}.shelf-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:38px 0 12px}.shelf-heading h2{margin:0}.pill{font-size:12px;border:1px solid #b8d9945c;padding:8px 12px;border-radius:30px;color:#d4e5bd;white-space:nowrap}.catalog-note{max-width:860px;color:var(--muted);font-size:14px;line-height:1.9;margin-bottom:20px}.filters{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}.filters button{border-radius:28px;font-size:14px;padding:10px 19px}.filters button[aria-pressed=true]{background:var(--cream);color:#253b36}.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.lesson-card{padding:0;overflow:hidden;border-radius:18px;text-align:left;position:relative;background:var(--panel);transition:transform .15s}.lesson-card:hover:enabled{transform:translateY(-3px)}.lesson-card img{display:block;aspect-ratio:16/9;width:100%;object-fit:cover;background:#091921}.lesson-card .card-body{padding:20px}.lesson-card h3{font-size:19px;margin:6px 0 10px}.lesson-card p{font-size:12px;color:var(--muted);line-height:1.6;margin-bottom:15px}.card-bottom{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:#bed5be}.card-badge{position:absolute;top:12px;left:12px;background:#10262edb;backdrop-filter:blur(6px);padding:6px 9px;border-radius:7px;font-size:11px;letter-spacing:1px}.card-duration{color:var(--mint);font-size:12px;letter-spacing:1px}.card-progress{height:3px;background:#ffffff17;margin-top:14px}.card-progress span{display:block;height:100%;background:var(--mint)}.source{margin:24px 0 0}
.lesson-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;gap:20px}.lesson-heading h1{margin:0 0 8px}.lesson-heading .note{margin:0}.progress-badge{display:flex;flex-direction:column;align-items:center;gap:4px;min-width:110px;background:#ffffff08;border-color:#ffffff26}.progress-badge strong{font-size:25px;color:var(--mint)}.progress-badge span{font-size:11px;color:var(--muted)}.workspace{display:grid;grid-template-columns:minmax(0,1.23fr) minmax(330px,1fr);gap:28px;align-items:start}.screen{position:relative;background:#040c11;aspect-ratio:16/9;border-radius:17px;overflow:hidden;isolation:isolate}.screen video{width:100%;height:100%;object-fit:contain;display:block}.video-cover{position:absolute;inset:0;background:#091d2860;display:flex;justify-content:center;align-items:center;flex-direction:column;gap:12px}.video-cover span{font-size:12px;background:#10262edd;padding:5px 8px;border-radius:8px}.countdown{position:absolute;inset:0;display:grid;place-items:center;background:#10262e85;font-size:84px;font-weight:800;color:var(--mint)}.film-caption{position:absolute;bottom:9%;left:4%;right:4%;text-align:center;pointer-events:none;font-size:18px;font-weight:650;text-shadow:0 1px 6px #000;background:#0009;padding:5px 8px;border-radius:7px}.timeline{display:flex;align-items:center;gap:10px;font-size:11px;font-variant-numeric:tabular-nums;color:var(--muted);margin:12px 0}.timeline input{flex:1;min-width:0;accent-color:var(--mint);height:30px;margin:0}.player-tools{display:flex;gap:7px;align-items:center;flex-wrap:wrap}.player-tools button{font-size:12px;padding:8px 10px}.player-tools label{font-size:12px;display:flex;align-items:center;gap:5px;margin-left:auto;color:var(--muted)}.player-tools select{font-size:12px;min-height:48px;padding:7px 2px;max-width:82px}#videoStatus{min-height:23px;margin:12px 0 24px}.queue-heading{display:flex;justify-content:space-between;align-items:center;gap:16px}.queue-heading h2{font-size:17px;margin:0}.check{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--muted);cursor:pointer;min-height:48px}.progress-track{height:4px;background:#ffffff16;border-radius:3px;margin:7px 0 14px}.progress-track span{height:100%;display:block;background:var(--mint);border-radius:3px;transition:width .2s}.line-list{display:grid;gap:6px;max-height:382px;overflow:auto;overscroll-behavior:contain;padding:3px}.line-item{display:flex;align-items:center;gap:12px;text-align:left;padding:12px;border-color:transparent;min-height:65px;width:100%}.line-item.active{background:#c7e89413;border-color:#c7e89470}.line-index{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.line-copy{flex:1;min-width:0}.line-copy strong{font-size:13px;font-weight:500;display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.line-copy small{display:block;color:var(--muted);font-size:11px;font-weight:400;margin-top:4px}.done{font-size:11px;color:var(--mint);white-space:nowrap}
.script-card{background:var(--cream);color:#253b37;border-radius:19px;padding:25px}.script-top{display:flex;justify-content:space-between;font-size:11px;letter-spacing:1px;color:#607069}.speaker{display:flex;gap:10px;align-items:center;margin:22px 0 18px;font-size:13px;font-weight:650}.speaker img{width:38px;height:38px;object-fit:cover;border-radius:50%}.speaker small{display:block;font-weight:400;font-size:11px;margin-top:3px;color:#6c7970}.script-card h2{font-size:26px;line-height:1.4;overflow-wrap:anywhere;margin-bottom:12px;letter-spacing:-.4px}.script-card #chinese{font-size:14px;color:#626d66;line-height:1.7}.acting-tip{font-size:12px;line-height:1.8;color:#637267;padding-top:12px;border-top:1px solid #253b3720;margin:17px 0 0}.text-button{border:0;background:none;font-size:12px;padding:7px 0;min-height:48px;font-weight:500}.script-card .text-button{color:#456545;text-decoration:underline}.recorder{padding:23px 0 0}.recorder-top{display:flex;align-items:center;gap:12px;justify-content:space-between;font-size:13px;min-height:24px}.recorder-top strong{font-variant-numeric:tabular-nums;font-size:16px;white-space:nowrap}.meter{height:5px;border-radius:5px;background:#ffffff1a;margin:14px 0;overflow:hidden}.meter div{height:100%;width:0%;background:var(--mint)}.record-btn{width:100%;height:66px;display:flex;justify-content:center;align-items:center;gap:12px;background:var(--mint);color:var(--ink);font-size:19px;font-weight:750;border:0;border-radius:16px}.record-btn:hover:enabled{background:#d9f4ae}.record-dot{width:15px;height:15px;background:#284631;border-radius:50%}.record-btn.recording{background:#f0a08b;color:#4e281e}.recording .record-dot{border-radius:4px;background:#702f24;animation:pulse 1s infinite}.record-note{font-size:11px;color:var(--muted);text-align:center;margin:10px 0 0}.auto-next{justify-content:center}.take-title{display:flex;gap:12px;align-items:center;justify-content:space-between;margin:18px 0 10px;font-size:13px}.take-title span{font-size:11px;color:var(--muted)}audio{width:100%;height:42px}.take-tools{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:10px 0}.take-tools button{font-size:12px;padding:8px 12px}.take-tools .text-button{margin-left:auto}.versions{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted)}.versions select{flex:1;min-width:0;font-size:12px}.feedback{border-top:1px solid var(--line);margin-top:20px;padding:20px 0;display:flex;gap:12px}.feedback>span{color:var(--mint);font-size:24px}.feedback h3{font-size:15px;margin-bottom:8px}.feedback p{color:var(--muted);font-size:12px;line-height:1.8;margin-bottom:0}.word{font-size:13px;display:inline-block;margin:8px 4px 0 0;padding:3px 5px;border-radius:4px}.word.match{background:#bce99824;color:#c7e894}.word.different,.word.missing{background:#eba68623;color:#eec0a4}.line-navigation{display:flex;gap:10px}.line-navigation button{flex:1}.privacy-note{font-size:11px;margin-top:18px}
dialog{border:1px solid #647d7c;background:#19343c;color:var(--cream);border-radius:22px;padding:26px;width:min(620px,calc(100% - 28px));max-height:85dvh;overflow:auto;box-shadow:0 20px 80px #0006}dialog::backdrop{background:#06151bba;backdrop-filter:blur(5px)}.dialog-heading{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:25px}.dialog-heading h2{margin:0}.dialog-heading button{padding:5px 14px}.setting{display:flex;align-items:flex-start;gap:12px;line-height:1.6}.setting strong{font-size:15px}.setting small{display:block;color:var(--muted);font-size:12px;margin-top:6px}hr{border:0;border-top:1px solid var(--line);margin:25px 0}.range-fields{display:flex;gap:15px}.range-fields label{flex:1;min-width:0;font-size:13px}.range-fields input{width:100%;display:block;margin:8px 0 15px}.field{display:block;font-size:13px;margin-bottom:16px}.field>input,.field>textarea{display:block;width:100%;margin-top:8px}.range-buttons,.finish-actions{display:flex;gap:8px;flex-wrap:wrap}.range-buttons button{font-size:12px}.file-button{display:inline-flex;align-items:center;min-height:48px;padding:10px 16px;background:var(--mint);color:var(--ink);border-radius:10px;font-size:13px;cursor:pointer;margin:0 8px 8px 0;position:relative}.file-button input{position:absolute;inset:0;opacity:0;width:100%;cursor:pointer}.finish-grid{display:grid;grid-template-columns:repeat(10,1fr);gap:5px;margin:20px 0}.finish-grid button{min-height:48px;border-radius:7px;padding:0;font-size:12px}.finish-grid button.complete{color:var(--ink);background:var(--mint)}.finish-actions button{flex:1;min-width:140px;font-size:13px}.global-status{position:fixed;bottom:max(14px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);background:#06171df2;border:1px solid var(--line);border-radius:12px;padding:12px 20px;font-size:13px;z-index:20;max-width:90vw;text-align:center;pointer-events:none}.global-status:empty{display:none}details{border:1px solid var(--line);border-radius:12px;padding:20px;margin-top:30px}summary{cursor:pointer}#legacyList>div{display:grid;grid-template-columns:1fr auto;gap:12px;margin-top:20px}#legacyList strong{grid-column:1/-1;font-size:14px}#legacyList button{font-size:12px}#legacyList audio{align-self:center}
@media(max-width:700px){body.recording-mode #recordBtn{position:fixed;bottom:max(16px,env(safe-area-inset-bottom));left:16px;width:calc(100% - 32px);z-index:30;box-shadow:0 4px 30px #0008}body.recording-mode .recorder{min-height:160px}}
@keyframes pulse{50%{opacity:.4}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media(min-width:1100px){.record-column{position:sticky;top:20px}}@media(max-width:1000px){.workspace{gap:20px;grid-template-columns:minmax(0,1.1fr) minmax(310px,1fr)}.script-card{padding:20px}.script-card h2{font-size:23px}.lesson-grid{gap:16px}.lesson-card .card-body{padding:16px}.topbar{padding:14px 24px}.library-hero{padding:32px}.library-hero h1{font-size:42px}}
@media(max-width:700px){main{padding:25px 22px 45px}.workspace{grid-template-columns:1fr}.screen-column{display:contents}.screen{order:0}.timeline{order:1;margin:0}.player-tools{order:2}.record-column{order:4}#videoStatus{order:3;margin:0}.queue-heading{order:5}.progress-track{order:6;margin:0}.line-list{order:7;max-height:280px}.screen-column>.source{order:8}.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.shelf-heading{align-items:flex-start;flex-direction:column;gap:10px}.script-card h2{font-size:27px}.script-card{padding:25px}.lesson-heading h1{font-size:28px}.film-caption{font-size:17px}}
@media(max-width:520px){main{padding:22px 16px 40px}.topbar{padding:10px 16px;gap:10px;flex-wrap:wrap}.studio-mark{font-size:12px;letter-spacing:2px}.top-actions{gap:6px}.top-actions button{font-size:11px;padding:7px 9px;min-height:48px}.topbar .back{font-size:12px}.library-hero{padding:25px;min-height:310px;border-radius:18px}.library-hero h1{font-size:36px}.library-hero p:not(.eyebrow){font-size:13px;max-width:230px}.library-hero img{width:100%;opacity:.55}.library-hero:after{background:linear-gradient(90deg,#10262eee,#10262e50)}.shelf-heading h2{font-size:21px}.eyebrow{font-size:9px;letter-spacing:1.5px}.lesson-grid{gap:12px}.lesson-card .card-body{padding:13px}.lesson-card h3{font-size:15px}.lesson-card p{font-size:11px;min-height:34px}.card-bottom{font-size:10px}.card-badge{font-size:9px;padding:5px;top:8px;left:8px}.filters{gap:6px}.filters button{font-size:12px;padding:9px 12px}.lesson-heading{gap:12px}.lesson-heading h1{font-size:24px}.progress-badge{min-width:84px;padding:10px}.progress-badge strong{font-size:21px}.player-tools{gap:5px}.player-tools button{font-size:11px;padding:8px}.player-tools label{margin-left:0}.workspace{gap:15px}.script-card h2{font-size:24px}.script-card{padding:22px}.film-caption{font-size:14px}.finish-grid{grid-template-columns:repeat(5,1fr)}}