:root{--blue:#3478f6;--blue-dark:#2164df;--ink:#202b40;--muted:#8992a3;--border:#e9edf3;--bg:#f7f9fc;--font:"Noto Sans SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);font-family:var(--font);font-size:14px;color:var(--ink)}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;transition:background .16s,box-shadow .16s,transform .16s}button:disabled{opacity:.45;cursor:not-allowed}button:hover:not(:disabled){filter:brightness(.97)}button:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:3px solid #9abfff;outline-offset:3px}svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.sprite{display:none}.sidebar{width:224px;position:fixed;inset:0 auto 0 0;background:#fff;border-right:1px solid var(--border);display:flex;flex-direction:column;padding:34px 20px 20px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-weight:800;font-size:25px;letter-spacing:2px;padding:0 10px}.brand small{display:block;font-size:8px;letter-spacing:2.2px;color:#939aaa;margin-top:3px}.brand-mark{height:42px;width:42px;border-radius:13px;display:grid;place-items:center;background:var(--blue);color:white;box-shadow:0 6px 12px #3478f62b}.brand-mark svg{width:26px;height:26px;stroke-width:1.9}.nav-label{font-size:11px;color:#a3aab7;margin:54px 15px 15px;letter-spacing:1px}.nav-active{border-radius:8px;padding:15px 17px;display:flex;align-items:center;gap:13px;background:#edf4ff;color:var(--blue);font-weight:600}.nav-dot{margin-left:auto;width:5px;height:5px;background:var(--blue);border-radius:50%}.sidebar-bottom{margin-top:auto;padding:24px 15px 26px}.privacy-icon{height:32px;color:#8a9bb5;margin-bottom:11px}.sidebar-bottom strong{font-size:12px;font-weight:500}.sidebar-bottom p{font-size:11px;line-height:1.9;color:#9ba4b2}.local-badge{font-size:10px;color:#7d8798;display:flex;align-items:center;gap:7px;margin-top:17px}.local-badge i,.engine-tag span{height:6px;width:6px;border-radius:50%;background:#35b890}.sidebar-version{border-top:1px solid var(--border);padding:18px 12px 0;font-size:10px;color:#b4bac6;display:flex;justify-content:space-between}main{margin-left:224px;min-height:100vh;padding-bottom:120px}.topbar{height:77px;border-bottom:1px solid var(--border);background:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 44px;font-size:12px;color:#949dab}.topbar b{color:#525e71;font-weight:500}.crumb{padding:0 15px;color:#c6ccd5}.text-btn{border:0;background:none;display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:8px 0;color:#647084;font-size:12px}.help-icon{height:15px;width:15px;border:1px solid #9aa4b5;display:grid;place-items:center;border-radius:50%;font-size:10px}.workspace{padding:40px 44px;max-width:1600px;margin:auto}.heading{display:flex;align-items:center;justify-content:space-between}.eyebrow{font-size:9px;letter-spacing:2px;font-weight:600;color:#8e9aae}h1{font-size:32px;letter-spacing:1px;margin:10px 0 12px;font-weight:700}h1 span{color:var(--blue)}.heading p{color:#9099a8;font-size:12px;margin:0}.engine-tag{display:flex;align-items:center;gap:8px;border:1px solid #e2e9e9;padding:8px 12px;border-radius:6px;background:#fbfdfc;color:#6a8b80;font-size:10px}.steps{display:flex;align-items:center;justify-content:center;margin:33px auto 24px;gap:18px}.step{display:flex;align-items:center;gap:9px;font-size:11px;color:#929baa}.step>span{border-radius:50%;width:22px;height:22px;display:grid;place-items:center;background:#e9edf4;font-size:10px;color:#8a97aa}.step.active{color:var(--blue)}.step.active>span{background:#e5eeff;color:var(--blue)}.step-line{height:1px;width:70px;background:#dfe5ee}.file-panel{border:1px solid var(--border);background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 15px #243a6403}.toolbar{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;gap:12px}.toolbar-actions,.toolbar-right{display:flex;align-items:center;gap:12px}.toolbar-right{font-size:11px;color:#9aa2af}.separator{height:14px;width:1px;background:var(--border);margin:0 5px}.primary,.secondary{display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:6px;padding:10px 17px;line-height:20px;font-size:12px;border:1px solid transparent;white-space:nowrap}.primary{background:var(--blue);color:white;box-shadow:0 3px 7px #3478f618}.primary:hover{background:var(--blue-dark)}.secondary{background:#fff;color:#5c6779;border-color:#dfe5ee}.primary svg,.secondary svg{width:17px;height:17px}.muted{color:#929baa}.muted svg{width:15px;height:15px}.dropzone{margin:0 24px 22px;border:1.5px dashed #cfdcf2;border-radius:9px;text-align:center;background:linear-gradient(120deg,#fbfdff,#f7faff);padding:35px 15px 23px;transition:.2s}.dropzone.dragover,.file-panel.dragover{background:#eaf2ff;border-color:var(--blue)}.upload-art{width:82px;height:64px;position:relative;margin:2px auto 20px}.art-back{background:#dbe9ff;border:1px solid #c6dcff;border-radius:9px;position:absolute;inset:0 8px 7px 4px;transform:rotate(-12deg)}.art-front{background:#fff;border:1px solid #b8d1ff;border-radius:9px;position:absolute;inset:7px 0 0 13px;box-shadow:0 7px 12px #3c78eb14;display:grid;place-items:center;color:#558ff9}.art-front>svg{width:35px;height:35px;stroke-width:1.25}.art-plus{position:absolute;right:-9px;bottom:-8px;width:26px;height:26px;border-radius:50%;border:3px solid #f8fbff;color:white;background:var(--blue);font-size:20px;line-height:18px}.dropzone h2{font-size:17px;font-weight:600;margin:0 0 10px}.dropzone p{font-size:12px;color:#929bab;margin:0 0 11px}.inline-link{border:0;background:none;color:var(--blue);padding:0}.format-note{font-size:10px;letter-spacing:.3px;color:#acb4c1}.demo-row{border-top:1px solid #e9eff8;margin:23px auto 0;padding-top:17px;max-width:380px;font-size:10px;color:#a3acb9}.demo-button{background:#fff;border:1px solid #e2e9f4;border-radius:5px;color:#6e84a4;font-size:10px;padding:6px 10px;margin-left:5px}.demo-button span{margin-left:13px}.panel-note{display:flex;align-items:center;gap:7px;border-top:1px solid #f0f3f7;padding:13px 24px;font-size:10px;color:#a2aab7}.panel-note svg{width:13px;height:13px}.panel-note>span{margin-left:auto;color:#b0b7c2}.summary-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}.summary-cards>div{padding:20px;background:#fff;border:1px solid var(--border);border-radius:9px;display:flex;gap:14px;align-items:center}.summary-icon{height:40px;width:40px;border-radius:10px;display:grid;place-items:center}.blue{background:#edf4ff;color:#5489ef}.violet{background:#f3efff;color:#9c80d9}.green{background:#eaf8f2;color:#63b992}.summary-cards small{font-size:10px;color:#9aa3b3;display:block;margin-bottom:4px}.summary-cards strong{font-size:23px;font-family:var(--font);font-weight:600;letter-spacing:-.5px}.summary-cards em{font-style:normal;font-size:10px;color:#a0a9b9;font-weight:400;margin-left:3px}.saving-note{margin-left:auto;font-size:9px;background:#f0faf6;color:#82bda5;padding:4px 7px;border-radius:4px}.friendly-note{font-size:10px;color:#a3adbc;margin:20px 0}.bottom-bar{position:fixed;bottom:0;left:224px;right:0;background:#fff;border-top:1px solid var(--border);padding:22px 44px;display:flex;justify-content:space-between;align-items:center;gap:20px;z-index:5}.global-control{width:340px}.global-control>div{display:flex;align-items:center;justify-content:space-between;font-size:11px;margin-bottom:5px}.global-control b{font-weight:500}.global-control span{font-size:10px;color:#a1abba}.global-control strong{color:var(--blue);font-weight:500}.global-control input{display:block;width:100%;height:15px}.footer-note{font-size:9px!important}.footer-action{display:flex;align-items:center;gap:20px}.footer-action>span{font-size:10px;color:#a1abba}.large{padding:13px 24px;font-size:14px;gap:13px;border-radius:7px}.large svg{width:19px;height:19px}input[type=range]{accent-color:var(--blue);cursor:pointer}.file-list{padding:0 24px}.video-card{border:1px solid #e7edf5;border-radius:9px;padding:17px;margin-bottom:13px;display:grid;grid-template-columns:160px minmax(100px,1fr) 24px minmax(140px,1fr) auto;gap:19px;align-items:center;background:#fcfdff}.thumb-button{padding:0;border:0;border-radius:6px;background:#e9eef8;overflow:hidden;height:96px;position:relative}.thumb-button img{width:100%;height:100%;object-fit:cover}.play{position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-size:17px;text-shadow:0 2px 8px #000;background:#0001}.video-name{font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:8px;max-width:230px}.meta{font-size:10px;color:#8e98a8;line-height:1.9}.meta b{font-weight:400;color:#66738a}.output-label{font-size:10px;color:#9aa6b7;display:block;margin-bottom:6px}.target-size{font-size:20px;font-weight:600}.target-size span{font-size:11px;font-weight:400;color:#7d899d;margin-left:4px}.percent-pill{font-size:9px;color:#46a27d;background:#eaf7f0;border-radius:4px;padding:3px 6px;margin-left:8px}.arrow-muted{color:#bbc6d8;width:19px}.row-actions{display:flex;align-items:center;gap:10px}.settings-button{color:#6f7f98;display:flex;align-items:center;gap:5px;border:0;background:none;font-size:11px;padding:7px 0}.settings-button svg{width:17px}.icon-btn{background:none;border:0;display:inline-grid;place-items:center;color:#a1abba;padding:6px;border-radius:5px}.icon-btn svg{width:16px;height:16px}.row-run{padding:6px 15px;color:var(--blue);border:1px solid #bfd5ff;border-radius:5px;background:#fff;font-size:11px;white-space:nowrap}.job-state{grid-column:1/-1;display:flex;align-items:center;gap:10px;border-top:1px solid var(--border);padding-top:12px;font-size:10px;color:#8593a6}.progress-track{flex:1;height:4px;border-radius:5px;background:#e8eef8;overflow:hidden}.progress-fill{height:100%;background:var(--blue);transition:width .5s}.job-state.done{color:#37a57b}.job-state.error{color:#d66b58}.download-link{margin-left:auto;color:var(--blue);display:inline-flex;align-items:center;gap:6px;text-decoration:none;font-weight:500;font-size:12px}.download-link svg{width:15px}.drop-hint{margin:10px 24px 22px;padding:20px;border:1px dashed #dce5f3;border-radius:8px;text-align:center;font-size:11px;color:#a0adbf}.drop-hint svg{width:13px;height:13px;vertical-align:middle}.toast{position:fixed;bottom:140px;left:calc(50% + 90px);transform:translate(-50%,10px);opacity:0;pointer-events:none;background:#26344a;color:white;font-size:12px;padding:13px 22px;border-radius:8px;box-shadow:0 8px 30px #1e305a30;max-width:90%;z-index:100;transition:.2s}.toast.visible{opacity:1;transform:translate(-50%,0)}dialog{border:0;padding:0;width:510px;border-radius:13px;box-shadow:0 24px 100px #182b5540;color:var(--ink);max-width:calc(100vw - 32px);max-height:90vh}dialog::backdrop{background:#172a484d;backdrop-filter:blur(3px)}.dialog-header{padding:22px 26px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.dialog-header h2{font-size:18px;margin:0;font-weight:600}.dialog-header p{margin:7px 0 0;font-size:11px;color:#9aa5b7;max-width:370px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dialog-body{padding:23px 26px}.target-box{padding:18px 20px;border-radius:8px;background:#f2f7ff;border:1px solid #e2ecff}.target-box>label{font-size:11px;color:#677e9d}.target-input{display:flex;align-items:center;gap:10px;margin:7px 0}.target-input input{font-size:30px;color:var(--blue);font-weight:600;border:0;background:none;width:190px;outline:none;padding:0}.target-input span{font-size:13px;color:#8398b5}.target-box p{font-size:10px;color:#8b9cb3;margin:6px 0 0;display:flex;gap:5px}.target-box b{font-weight:400}.target-box p>span{margin-left:auto;color:#488d74}.ratio-label{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:#8491a4;margin:20px 0 5px}.ratio-label b{color:var(--blue);font-weight:500}#settingsRatio{width:100%}.section-label{font-size:11px;font-weight:600;margin:23px 0 13px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px}.form-grid label{font-size:10px;color:#8995a8;display:flex;flex-direction:column;gap:7px}.form-grid select,.read-only{height:35px;border:1px solid #e5eaf2;border-radius:5px;padding:7px 10px;background:#fbfcfe;font-size:11px;color:#53637a;width:100%}.read-only{background:#f1f4f8;color:#8e9aad}.settings-tip{font-size:10px;color:#9aa7b9;line-height:1.8;margin:20px 0 0}.error-message{font-size:11px;color:#d76d58;margin:8px 0 0}.dialog-footer{border-top:1px solid var(--border);padding:17px 26px;display:flex;align-items:center;justify-content:space-between;background:#fcfdff}.dialog-footer>div{display:flex;gap:10px}#previewDialog{width:800px}#previewVideo{display:block;width:100%;max-height:65vh;background:#101722}.preview-note{font-size:11px;color:#8e99ac;padding:0 22px}.help-content{padding:5px 26px 24px;line-height:1.9;font-size:12px;color:#8693a7}.help-content b{display:inline-block;color:#3c5273;margin-bottom:8px}.uploading{opacity:.6;pointer-events:none}[hidden]{display:none!important}
@media(min-width:1500px){.workspace{padding-top:52px}.dropzone{padding-top:56px;padding-bottom:33px}.steps{margin-top:42px;margin-bottom:30px}}
.back-home{display:flex;align-items:center;gap:8px;margin:14px 15px 0;padding:9px 13px;border-radius:9px;background:#f1f4f9;color:#5b6575;font-size:13px;font-weight:500;text-decoration:none;transition:background .16s,color .16s}
.back-home svg{width:17px;height:17px}
.back-home:hover{background:#e4ebf5;color:var(--blue)}
@media(max-width:760px){.back-home{display:flex}.nav-label,.nav-active,.sidebar-bottom,.sidebar-version,.engine-tag{display:none}}
@media(max-width:1200px){.sidebar{width:190px;padding-left:14px;padding-right:14px}.brand{font-size:22px;padding:0 5px}main{margin-left:190px}.bottom-bar{left:190px;padding:20px 28px}.workspace{padding:30px 28px}.topbar{padding:0 28px}.footer-action>span{display:none}.video-card{grid-template-columns:120px minmax(110px,1fr) minmax(125px,1fr);gap:15px}.thumb-button{height:78px}.arrow-muted{display:none}.row-actions{grid-column:2/4;justify-content:flex-end}.saving-note{display:none}.summary-cards>div{padding:16px}.global-control{width:290px}}
@media(max-width:760px){.sidebar{position:static;width:100%;padding:16px 20px;border-right:0;border-bottom:1px solid var(--border);display:block}.brand{font-size:20px}.brand small{font-size:6px}.brand-mark{width:33px;height:33px;border-radius:10px}.brand-mark svg{width:22px}.nav-label,.nav-active,.sidebar-bottom,.sidebar-version,.engine-tag{display:none}main{margin-left:0;padding-bottom:150px}.topbar{height:52px;padding:0 20px}.workspace{padding:27px 16px}.heading h1{font-size:27px}.heading p{font-size:11px}.eyebrow{font-size:8px}.steps{gap:10px;margin:27px 0 20px}.step-line{width:22px}.step{font-size:10px;gap:5px}.toolbar{padding:15px;flex-wrap:wrap}.toolbar-right{margin-left:auto;font-size:10px}.toolbar-actions{gap:7px}.toolbar .primary,.toolbar .secondary{padding:8px 10px;font-size:11px}.toolbar .separator{display:none}.toolbar-right .text-btn{font-size:10px}.dropzone{margin:0 15px 15px;padding:30px 10px 20px}.panel-note{padding:12px 15px;font-size:9px}.panel-note>span{display:none}.summary-cards{gap:8px;margin-top:15px}.summary-cards>div{padding:13px 9px;gap:8px}.summary-icon{display:none}.summary-cards strong{font-size:21px}.summary-cards small{font-size:9px}.friendly-note{line-height:1.8;font-size:9px}.bottom-bar{left:0;padding:15px 20px;flex-wrap:wrap;gap:12px}.global-control{width:100%}.global-control input{margin-top:9px}.footer-note{display:none}.footer-action{width:100%;justify-content:flex-end}.footer-action>span{display:block;margin-right:auto;font-size:9px}.large{font-size:12px;padding:10px 16px;gap:8px}.file-list{padding:0 15px}.video-card{grid-template-columns:85px 1fr;padding:12px;gap:12px}.thumb-button{height:65px}.video-card>.output-info{grid-column:1/3;display:flex;align-items:center;gap:6px;border-top:1px solid var(--border);padding-top:12px}.output-label{margin:0}.target-size{font-size:17px}.output-info>.meta{margin-left:auto}.row-actions{grid-column:1/3}.job-state{flex-wrap:wrap}.progress-track{min-width:50px}.toast{left:50%;bottom:170px}.dialog-body{padding:20px}.dialog-header{padding:20px}.dialog-footer{padding:15px 20px}.demo-row{font-size:9px}}

/* ---- embed 模式：嵌入帧渡主页 iframe，隐藏侧栏与顶栏，主区铺满 ---- */
body.embed{background:var(--bg)}
body.embed .sidebar{display:none}
body.embed .topbar{display:none}
body.embed main{margin-left:0;padding-bottom:40px;min-height:0}
body.embed .workspace{padding:20px 22px;max-width:none}
body.embed .steps{margin-top:18px;margin-bottom:18px}
body.embed .bottom-bar{position:sticky;bottom:0;left:0;right:0}
@media(max-width:760px){body.embed .workspace{padding:14px 12px}}