:root{color-scheme:light;--surface:#e0e5ec;--ink:#303b48;--muted:#596677;--orange:#c75b20;--yellow:#ffd52c;--raise:8px 8px 16px #b8bec7,-8px -8px 16px #fff;--inset:inset 5px 5px 10px #b8bec7,inset -5px -5px 10px #fff;--shallow:inset 2px 2px 4px #b8bec7,inset -2px -2px 4px #fff;font-family:"Bahnschrift","Microsoft YaHei UI",sans-serif;color:var(--ink);background:var(--surface);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;padding:44px 28px}button,input,select{font:inherit;color:inherit}button,.button{border:0;background:var(--surface);border-radius:14px;box-shadow:var(--raise);cursor:pointer;transition:box-shadow .3s ease-in-out,color .3s ease-in-out}button{min-height:46px;padding:12px 16px}button:hover:not(:disabled),.button:hover{box-shadow:4px 4px 8px #b8bec7,-4px -4px 8px #fff}button:active:not(:disabled),button[aria-pressed=true]{box-shadow:var(--inset)}button:disabled{cursor:not-allowed;color:#858f9c;box-shadow:3px 3px 6px #c8cdd5,-3px -3px 6px #f8fbff}button[aria-pressed=true]::before{content:"";width:7px;height:7px;display:inline-block;border-radius:50%;background:var(--orange);margin-right:9px}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--orange);outline-offset:5px}input:focus-visible,select:focus-visible{outline:2px solid var(--orange);outline-offset:3px;box-shadow:var(--shallow)}[hidden]{display:none!important}
.machine{max-width:1220px;margin:auto;border-radius:28px;box-shadow:var(--raise);padding:30px 32px 0}header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:28px}.brand{display:flex;align-items:center;gap:12px}.signal{width:11px;height:28px;border-radius:6px;background:var(--orange)}h1{font-size:clamp(20px,2.2vw,29px);font-weight:600;letter-spacing:-1px;margin:0}h1 span{font-weight:400;color:var(--orange)}.local{font-size:10px;letter-spacing:1.2px;color:var(--muted);display:flex;align-items:center;gap:7px;flex-wrap:wrap;justify-content:flex-end}.status-dot{background:#647a5b;width:6px;height:6px;border-radius:50%}.local>span{display:block;width:100%;font-size:11px;letter-spacing:.5px;text-align:right}
.workbench{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:34px}.editor{min-width:0}.screen{height:408px;display:flex;align-items:center;justify-content:center;box-shadow:var(--inset);border-radius:20px;padding:16px;position:relative;overflow:hidden}.screen.dragging{outline:2px dashed var(--orange);outline-offset:-8px}.screen video{width:100%;height:100%;object-fit:contain;border-radius:8px}.screen-label{position:absolute;top:17px;left:20px;font-size:9px;letter-spacing:1.5px;color:#657181;background:var(--surface);padding:4px 6px;border-radius:4px;pointer-events:none}.empty{text-align:center;display:flex;align-items:center;flex-direction:column;gap:14px;padding:22px}.empty-mark{font-size:32px;width:76px;height:76px;border-radius:22px;box-shadow:var(--raise);display:grid;place-items:center;color:var(--orange)}.empty p{font-size:23px;letter-spacing:1px;margin:8px 0 0}.empty>span:not(.empty-mark){color:var(--muted);font-size:13px}.empty button{margin-top:10px;min-width:180px}.empty small{font-size:10px;color:var(--muted)}.primary{font-weight:600}.primary>span{color:var(--orange);margin-right:7px}.transport{display:flex;align-items:center;gap:12px;margin:18px 2px 26px}.round{padding:0;min-width:42px;min-height:42px;border-radius:50%;color:var(--orange)}.mono{font-family:"Consolas","Cascadia Code",monospace;font-variant-numeric:tabular-nums}.transport .mono{font-size:11px;white-space:nowrap;color:var(--muted)}input[type=range]{appearance:none;background:var(--surface);box-shadow:var(--shallow);height:7px;border-radius:8px;min-width:30px;flex:1;width:100%;accent-color:var(--orange)}input[type=range]::-webkit-slider-thumb{appearance:none;background:var(--surface);border:0;box-shadow:2px 2px 4px #aeb6c0,-2px -2px 4px #fff;width:16px;height:16px;border-radius:50%;cursor:pointer}.icon{box-shadow:none!important;font-size:26px;padding:0;min-width:30px;min-height:40px}.section-caption{font-size:10px;letter-spacing:1.2px;color:var(--muted);display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:14px}.section-caption b{font-size:12px;font-weight:500;letter-spacing:0;margin-left:8px}#trim-help{font-size:10px;letter-spacing:0}.timeline{position:relative;height:70px;border-radius:10px;box-shadow:var(--inset);background:var(--surface);touch-action:none;isolation:isolate;overflow:hidden}.timeline canvas{display:block;width:100%;height:100%;border-radius:10px;opacity:.65}.selection{position:absolute;top:0;bottom:0;border:3px solid var(--yellow);border-radius:10px;min-width:12px;display:flex;z-index:2}.handle{position:absolute;top:14px;bottom:14px;min-height:0;width:18px;padding:0;background:var(--yellow);color:#6c5d18;font-size:13px;box-shadow:none!important;border-radius:6px;touch-action:none;z-index:3}.handle.start{left:-3px;cursor:ew-resize}.handle.end{right:-3px;cursor:ew-resize}#selection-body{flex:1;cursor:grab;touch-action:none}#selection-body:active{cursor:grabbing}#playhead{position:absolute;top:0;bottom:0;width:2px;background:#f7f8fa;box-shadow:0 0 2px #303b48;z-index:4;pointer-events:none}.ticks{display:flex;justify-content:space-between;font-size:9px;color:var(--muted);font-family:Consolas,monospace;padding-top:9px}.readouts{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px;margin-top:23px}.readouts>label,.readouts>div{display:flex;gap:5px;align-items:center;box-shadow:var(--inset);padding:14px;border-radius:12px;font-size:11px;min-width:0;color:var(--muted)}.readouts input{border:0;background:transparent;min-width:0;width:100%;text-align:right;font-size:13px;font-family:Consolas,monospace;appearance:textfield}.readouts input::-webkit-inner-spin-button{appearance:none}.readouts strong{margin-left:auto;font-size:13px;font-weight:500;color:var(--ink);white-space:nowrap}
.inspector{padding:2px 0}.eyebrow{font-size:9px;letter-spacing:1.6px;color:var(--muted);display:block}.source{padding:0 0 22px;display:grid;gap:10px}.source strong{font-size:17px;overflow-wrap:anywhere;font-weight:500}.source .mono{font-size:12px;color:var(--muted)}.setting{padding-top:21px;position:relative}.setting:before,.actions:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;box-shadow:0 1px 0 #f8fafc;background:#c7ced7}.segmented{display:flex;gap:12px}.segmented button{flex:1;padding:14px 8px;white-space:nowrap}.segmented sup{font-size:8px;margin-left:2px}.hint{font-size:11px;color:var(--muted);line-height:1.65;margin:13px 0 18px}.sizes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:11px}.sizes button{padding:12px 4px;font-size:13px;min-width:0}.sizes button:first-child{font-size:11px}.sizes button[aria-pressed=true]::before{margin-right:5px;width:5px;height:5px}.specs{display:grid;grid-template-columns:1fr 1.6fr;align-items:center;gap:15px;font-size:12px;padding:4px 0 20px}.specs select,.inset{border:0;box-shadow:var(--inset);background:var(--surface);border-radius:10px;min-height:40px;padding:11px 16px;width:100%;font-size:13px}.specs select{cursor:pointer}.actions{display:flex;gap:14px;padding-top:24px;position:relative}.actions button{flex:1;padding:16px 8px;font-size:13px}.message{font-size:11px;line-height:1.7;color:var(--muted);margin:18px 0 12px;overflow-wrap:anywhere}.message.error{color:#99371f}.limits{font-size:10px;line-height:1.8;color:var(--muted)}summary{cursor:pointer;width:fit-content}.limits p{margin:10px 0}.save-note{font-size:11px;line-height:1.7;color:#8a471f;padding:12px;border-radius:10px;box-shadow:var(--shallow);margin:10px 0 20px}.small-button{font-size:11px;min-height:38px;padding:8px 12px}.progress-heading{display:flex;justify-content:space-between;font-size:11px;margin-top:20px;align-items:center}.text-button{box-shadow:none!important;min-height:30px;padding:5px;color:var(--orange);font-size:11px}progress{appearance:none;width:100%;height:7px;border:0;border-radius:7px;overflow:hidden;margin-top:8px;box-shadow:var(--inset)}progress::-webkit-progress-bar{background:var(--surface)}progress::-webkit-progress-value{background:var(--orange);border-radius:7px}.result{margin:32px 0 0;padding:24px;display:flex;justify-content:space-between;gap:24px;border-radius:18px;box-shadow:var(--inset);align-items:center}.result h2{font-size:20px;font-weight:500;margin:12px 0}.result img{max-width:48%;max-height:280px;object-fit:contain;border-radius:10px}.button{display:inline-flex;align-items:center;color:var(--ink);text-decoration:none;padding:15px 22px;font-size:13px}.result .hint{max-width:460px}.result .hint:empty{display:none}footer{display:flex;justify-content:space-between;align-items:center;padding:24px 0 21px;margin-top:22px;gap:12px;color:var(--muted);font-size:9px;letter-spacing:1px}footer>span:first-child{font-weight:600;letter-spacing:2px}footer a{color:inherit;text-decoration:none}
@media(min-width:1400px){body{padding-top:65px}.screen{height:450px}}
@media(max-width:900px){body{padding:24px 20px}.machine{padding:24px 22px 0}.workbench{grid-template-columns:minmax(0,1fr) 290px;gap:24px}.screen{height:350px}.readouts{gap:9px}.readouts>label,.readouts>div{padding:12px 9px}.local{max-width:170px}.transport{gap:8px}.transport .mono{font-size:10px}.timeline-wrap .section-caption{flex-wrap:wrap}#trim-help{width:100%;line-height:1.6}.sizes{gap:9px}}
@media(max-width:700px){:root{--raise:4px 4px 8px #b8bec7,-4px -4px 8px #fff;--inset:inset 4px 4px 8px #b8bec7,inset -4px -4px 8px #fff}body{padding:18px 14px}.machine{padding:22px 17px 0;border-radius:23px}header{align-items:flex-start;margin-bottom:22px;gap:13px;flex-wrap:wrap}h1{font-size:22px}.signal{width:8px;height:23px}.brand{gap:9px}.local{max-width:none;font-size:8px;letter-spacing:.9px;justify-content:flex-start;gap:6px;padding-left:17px}.local>span{display:inline;width:auto;font-size:10px;letter-spacing:0}.workbench{display:flex;flex-direction:column;gap:28px}.screen{height:350px;padding:13px;border-radius:16px}.screen-label{top:12px;left:12px;font-size:8px;padding:3px}.empty{padding:10px;gap:13px}.empty p{font-size:20px}.empty small{font-size:9px}.transport{margin:15px 0 23px;gap:10px}.transport .mono{font-size:10px}.round{min-width:35px;min-height:35px}.timeline{height:59px}.handle{top:9px;bottom:9px;width:20px}.section-caption{font-size:9px}.section-caption b{font-size:11px}.readouts{margin-top:20px;gap:10px}.readouts>label,.readouts>div{padding:13px 9px;flex-wrap:wrap;font-size:10px}.readouts input{font-size:13px;flex:1;min-width:35px}.readouts strong{font-size:13px}.inspector{padding:0 2px}.source{padding-bottom:22px}.source strong{font-size:16px}.sizes{gap:12px}.sizes button{min-height:45px}.segmented{gap:14px}.specs{grid-template-columns:1fr 1.5fr;gap:16px;padding-bottom:22px}.actions button{min-height:52px}.result{padding:20px;flex-direction:column;align-items:stretch}.result img{max-width:100%;max-height:330px}footer{font-size:8px;letter-spacing:0;flex-wrap:wrap;row-gap:12px}footer>span:nth-child(2){order:3;width:100%;text-align:center}}
.readouts>label{white-space:nowrap}.readouts input{flex:1;width:0}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition:none!important;animation:none!important}}

/* Community and support use the same instrument surface as the converter. */
html{scroll-behavior:smooth;scroll-padding-top:24px}.header-tools{display:flex;align-items:center;gap:24px}.page-nav{display:flex;gap:18px;font-size:11px;white-space:nowrap}.page-nav a{color:var(--muted);text-decoration:none}.page-nav a:hover{color:var(--orange)}.language-switch{--slider-accent:var(--orange);position:relative;width:108px;height:44px;flex:none;border-radius:14px;box-shadow:var(--shallow)}.language-thumb{position:absolute;left:5px;top:5px;width:48px;height:34px;border-radius:10px;background:var(--slider-accent);box-shadow:2px 2px 5px #a64d2540;pointer-events:none;transition:transform .3s ease-in-out}.language-switch[data-selected=en] .language-thumb{transform:translateX(50px)}.language-switch input[type=range]{position:absolute;left:5px;top:5px;width:98px;height:34px;margin:0;border:0;opacity:0;z-index:2;cursor:pointer;touch-action:pan-y;box-shadow:none}.language-switch input[type=range]::-webkit-slider-thumb{width:48px;height:34px;border:0;border-radius:10px;cursor:grab}.language-switch input[type=range]::-moz-range-thumb{width:48px;height:34px;border:0;border-radius:10px;cursor:grab}.language-switch input[type=range]:active{cursor:grabbing}.language-switch:has(input:focus-visible){outline:2px solid var(--orange);outline-offset:4px}.language-labels{position:absolute;inset:5px;display:grid;grid-template-columns:1fr 1fr;align-items:center;text-align:center;pointer-events:none;font-size:11px;color:var(--muted)}.language-labels>span{transition:color .3s ease-in-out}.language-switch[data-selected=zh] [data-language-label=zh],.language-switch[data-selected=en] [data-language-label=en]{color:#100c08;font-weight:600}.intro-line{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:-5px 0 25px}.intro-line>p{font-size:12px;color:var(--muted);margin:0}.intro-line .local{max-width:none}.intro-line .local>span{width:auto;font-size:10px;letter-spacing:0}.ad-monitor{padding:12px 14px 8px;border-radius:15px;box-shadow:4px 4px 9px #b9c0c9,-4px -4px 9px #fff;min-width:0}.ad-bezel{display:flex;justify-content:space-between;color:#667480;font-size:8px;letter-spacing:1.4px;margin:0 2px 9px}.ad-index{font-family:Consolas,monospace}.ad-display{height:90px;border-radius:6px;background:#d4dce0;box-shadow:inset 2px 2px 5px #b5bfc7,inset -1px -1px 3px #eef3f5;display:grid;place-items:center;color:#77848e;overflow:hidden}.ad-display>span{font-family:Consolas,monospace;font-size:10px;letter-spacing:3px;opacity:.65}.ad-chin{height:14px;display:flex;align-items:center;justify-content:space-between;margin:5px 3px 0}.ad-chin i{width:4px;height:4px;background:#8c9b90;border-radius:50%}.ad-chin b{font-size:6px;font-weight:400;letter-spacing:2px;color:#74818e}.ad-monitor--banner{margin:0 0 38px}.ad-monitor--wide{margin:48px 0}.ad-monitor--wide .ad-display{height:100px}.ad-monitor--square .ad-display{height:250px}.community-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:34px;margin:48px 0 28px}.requests-panel,.support-panel{min-width:0;border-radius:18px;box-shadow:var(--inset);padding:26px}.requests-panel h2,.support-panel h2{font-weight:500;font-size:22px;line-height:1.35;letter-spacing:-.3px;margin:15px 0 12px}.section-intro,.support-panel>p{font-size:12px;line-height:1.85;color:var(--muted);margin:0 0 24px}.panel-note{font-size:8px;letter-spacing:.7px;white-space:nowrap}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}.form-row label{display:grid;gap:10px;font-size:11px;min-width:0}.form-row input,.form-row select,.requests-panel textarea{background:var(--surface);border:0;border-radius:10px;box-shadow:var(--shallow);padding:13px;font-size:12px;width:100%;min-width:0}.form-row select{min-height:43px}.body-label{display:block;font-size:11px;margin:20px 0 10px}.requests-panel textarea{resize:vertical;min-height:118px;max-height:340px;line-height:1.85;font:inherit;font-size:12px;color:var(--ink)}.requests-panel input::placeholder,.requests-panel textarea::placeholder{color:#71808f;font-size:11px}.form-meta{display:flex;justify-content:space-between;gap:15px;font-size:10px;color:var(--muted);line-height:1.8;margin-top:9px}.form-meta output{white-space:nowrap;font-family:Consolas,monospace}.consent{display:flex;align-items:center;gap:10px;font-size:11px;color:var(--muted);margin:18px 0;line-height:1.7;cursor:pointer}.consent input{accent-color:var(--orange);width:16px;height:16px;flex:none;margin:0}.honeypot{display:none}.form-actions{display:flex;align-items:center;gap:18px}.form-actions button{font-size:12px;white-space:nowrap;min-width:118px}.form-actions p{font-size:11px;line-height:1.7;color:var(--muted);margin:0}.comment-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;border-top:1px solid #c8d0d9;margin-top:29px;padding-top:18px}.comment-heading h3{font-size:12px;font-weight:500;margin:0}.comment{padding:18px 0;border-bottom:1px solid #cbd2db}.comment:last-child{border-bottom:0}.comment-meta{display:flex;align-items:center;gap:9px;flex-wrap:wrap;font-size:10px;color:var(--muted)}.comment-meta strong{font-weight:500;color:var(--ink);overflow-wrap:anywhere}.comment-meta time{margin-left:auto;font-size:9px}.comment-tag{padding:3px 7px;border-radius:5px;background:#d3dce3;font-size:9px}.comment>p{font-size:12px;line-height:1.85;white-space:pre-wrap;overflow-wrap:anywhere;margin:11px 0 0}.community-aside{display:flex;flex-direction:column;gap:30px;min-width:0}.support-panel{box-shadow:var(--raise)}.support-panel .section-caption{margin-bottom:22px}.cup-symbol{font-size:28px;width:58px;height:58px;display:grid;place-items:center;border-radius:18px;box-shadow:var(--inset);color:var(--orange);margin:0 0 22px}.support-panel h2{font-size:22px}.support-panel>p{font-size:11px;margin-bottom:22px}.support-methods{display:flex;gap:14px}.support-methods button{flex:1;font-size:12px;min-height:46px}.support-panel>.support-fine{font-size:10px;margin:20px 0 0}.kofi-link{display:flex;justify-content:space-between;gap:16px;min-height:46px;font-size:12px}.privacy-note{border-top:1px solid #c7cfd8;padding-top:20px;color:var(--muted);font-size:10px;line-height:1.85}.privacy-note p{max-width:760px}.payment-dialog{color:var(--ink);background:var(--surface);width:min(420px,calc(100vw - 32px));border:0;border-radius:23px;box-shadow:12px 12px 35px #303b4840;padding:25px;max-height:calc(100dvh - 40px);overflow:auto}.payment-dialog::backdrop{background:#303b4866;backdrop-filter:blur(4px)}.dialog-heading{display:flex;justify-content:space-between;align-items:center}.payment-dialog h2{font-size:21px;font-weight:500;margin:18px 0 0}.payment-dialog .hint{margin:10px 0 16px}.payment-tabs{display:flex;gap:14px;margin:20px 0}.payment-tabs button{flex:1;font-size:12px}.qr-screen{padding:12px;border-radius:14px;box-shadow:var(--inset);background:#d6dde5;display:flex;justify-content:center}.qr-screen img{max-width:100%;max-height:46dvh;object-fit:contain;border-radius:8px}.payment-dialog>.hint:last-child{text-align:center;margin:20px 0 0}
@media(max-width:1000px){.header-tools{gap:16px}.page-nav{gap:12px}.community-grid{grid-template-columns:minmax(0,1fr) 290px;gap:24px}.requests-panel,.support-panel{padding:22px}.form-row{gap:13px}.ad-monitor--banner{margin-bottom:30px}}
@media(max-width:700px){header{gap:20px}.header-tools{width:100%;justify-content:space-between}.page-nav{gap:21px}.intro-line{margin:0 0 22px;flex-wrap:wrap;gap:13px}.intro-line>p{font-size:11px}.intro-line .local{padding:0;font-size:8px;gap:7px}.intro-line .local>span{font-size:9px}.ad-monitor{padding:10px 11px 6px;border-radius:12px}.ad-monitor--banner{margin-bottom:30px}.ad-display,.ad-monitor--wide .ad-display{height:80px}.ad-monitor--wide{margin:34px 0}.ad-monitor--square{max-width:360px;width:100%;align-self:center}.ad-monitor--square .ad-display{height:250px}.community-grid{display:flex;flex-direction:column;gap:30px;margin-top:34px}.requests-panel,.support-panel{padding:22px 18px}.requests-panel h2{font-size:22px}.form-row{grid-template-columns:1fr;gap:17px}.form-meta{gap:10px;font-size:9px}.consent{font-size:10px;align-items:flex-start}.form-actions{align-items:flex-start;flex-direction:column;gap:12px}.form-actions button{width:100%;min-height:48px}.comment-meta{font-size:9px}.comment-heading h3{font-size:11px}.support-panel .section-caption{margin-bottom:18px}.support-panel h2{font-size:22px}.community-aside{gap:30px}.privacy-note{font-size:10px}.payment-dialog{padding:22px}.payment-dialog h2{font-size:20px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.cup-symbol svg{width:29px;height:29px;fill:none;stroke:var(--orange);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}