:root {
  font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  color:#1d2939;background:#f3f5f8;color-scheme:light;font-size:15px;
  --accent:#2558d9;--line:#dfe4ec;
}
*{box-sizing:border-box}body{margin:0}body:not(.phone-body){min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}button,input,.button{font:inherit}
.pdf-print-frame{position:fixed;left:-10000px;top:0;width:1px;height:1px;border:0;pointer-events:none}
button,.button{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:7px;padding:8px 13px;background:#fff;color:#344054;cursor:pointer;text-decoration:none;gap:5px;font-weight:550}
button:hover,.button:hover{background:#f0f3f9}button:disabled{opacity:.45;cursor:default}
button:focus-visible,.button:focus-visible,input:focus-visible{outline:3px solid #94b7ff;outline-offset:3px}
.primary{background:var(--accent);border-color:var(--accent);color:white}.primary:hover{background:#1948bb}
.toolbar{position:sticky;top:0;z-index:3;background:#fffffff2;backdrop-filter:blur(12px);border-bottom:1px solid var(--line);padding:6px max(16px,calc((100vw - 1080px)/2));display:flex;justify-content:space-between;align-items:center;gap:12px}
.toolbar h1{display:flex;margin:0;line-height:1.2}.brand-wordmark{font-size:22px;font-weight:750;letter-spacing:-.7px;color:#111827}.brand-wordmark span{color:#f45d17}
.brand-wordmark a{display:flex;color:inherit;text-decoration:none}
.brand-logo{display:block;width:310px;max-width:68vw;height:auto;object-fit:contain;border-radius:25px;pointer-events:none}
nav{display:flex;gap:8px;flex-wrap:wrap}.file-input{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}
.tools-menu{position:relative}.tools-panel{position:absolute;right:0;top:calc(100% + 8px);display:grid;gap:5px;width:180px;max-width:calc(100vw - 24px);max-height:calc(100dvh - 80px);overflow:auto;padding:7px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px #10182820}.tools-panel button{justify-content:flex-start;width:100%}#tools-toggle svg{fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;transition:transform .15s}#tools-toggle[aria-expanded=true] svg{transform:rotate(180deg)}
#tools-toggle{max-width:calc(100vw - 155px)}#tools-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}#tools-toggle svg{flex:none}
main{max-width:960px;margin:auto;padding:10px 14px 16px;min-height:calc(100vh - 65px)}
#drop-zone{width:100%;max-width:none;min-height:0;flex:1;margin:0}
#drop-zone>p,#drop-zone>.empty,#drop-zone>#results{max-width:932px;margin-left:auto;margin-right:auto}
#drop-zone.drag{background:#edf3ff;outline:3px dashed var(--accent);outline-offset:-5px}
.empty{min-height:calc(100dvh - 125px);display:flex;flex-direction:column;align-items:center;justify-content:center;margin:0}
.upload-target{display:flex;flex-direction:column;align-items:center;gap:18px;padding:28px 48px 24px;border:2px dashed #c4ccd9;border-radius:24px;background:#ffffff9c;cursor:pointer;transition:background .15s,border-color .15s}
.upload-target>span{font-size:15px;color:#475467;font-weight:550;pointer-events:none}
.upload-target:hover,.upload-target:focus-visible,main.drag .upload-target{border-color:var(--accent);background:#edf3ff;outline:none}
.page{margin-bottom:10px;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;box-shadow:0 2px 6px #1d293908}
.page-head{display:flex;align-items:center;gap:8px;padding:5px 9px;border-bottom:1px solid var(--line)}
.page-number{display:grid;place-items:center;min-width:24px;height:24px;background:#eef2f9;border-radius:5px;font-size:12px;color:#62708a}
.page-tools{display:flex;gap:6px;margin-left:auto}.page-tools button,.page-tools a{padding:5px 9px;font-size:13px}
.page-view{position:relative;min-height:120px;background:#e9edf3;display:flex;justify-content:center;align-items:center;padding:0}
.document-surface{position:relative;max-width:100%;width:fit-content;line-height:0}
.document-surface>img{display:block;max-width:100%;max-height:850px;width:auto;height:auto;background:#fff}
.page.busy .document-surface>img{max-height:500px}
.processing-mask{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:10px;background:#f0f3f7c9;backdrop-filter:blur(3px);font-weight:550;color:#344054}
.spinner{width:22px;height:22px;border:2px solid #bccbed;border-top-color:var(--accent);border-radius:50%;animation:spin .85s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.page-error{padding:10px;margin:0}.error{color:#b42318}#status{margin:0 0 10px}
.page-order{display:flex;gap:2px}.page-order button{padding:4px 7px}
dialog{border:1px solid var(--line);border-radius:11px;width:min(1100px,96vw);max-height:96dvh;padding:0;box-shadow:0 20px 80px #10182840}
dialog::backdrop{background:#10182899}#edit-form{display:flex;flex-direction:column;max-height:94dvh}
.editor-header{padding:9px 16px;display:flex;align-items:center;justify-content:space-between}
.editor-header h2{font-size:16px;margin:0}.editor-header button{border:0;padding:4px 8px}
.editor-tabs{display:flex;padding:0 16px;border-bottom:1px solid var(--line);gap:20px}
.editor-tabs button{border:0;border-radius:0;padding:8px 3px;border-bottom:2px solid transparent;color:#667085}
.editor-tabs button[aria-selected=true]{border-bottom-color:var(--accent);color:var(--accent)}
.editor-panel{overflow:auto;padding:12px;min-height:0;flex:1;background:#f4f6f9}
.crop-stage{position:relative;margin:auto;width:fit-content;max-width:100%;line-height:0;user-select:none}
.crop-stage>img{display:block;max-width:100%;max-height:64dvh;width:auto;height:auto}
.crop-stage>svg,#crop-handles{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.crop-stage>svg{pointer-events:none}#crop-shade{fill:#10182899}
#crop-polygon{fill:#4263eb12;stroke:#729aff;stroke-width:2;vector-effect:non-scaling-stroke}
#crop-handles{pointer-events:none}
.corner{position:absolute;transform:translate(-50%,-50%);width:30px;height:30px;border:3px solid white;border-radius:50%;background:var(--accent);padding:0;cursor:grab;pointer-events:auto;touch-action:none;box-shadow:0 1px 7px #0008}
.corner:active{cursor:grabbing}
.crop-actions{display:flex;align-items:center;gap:8px;margin:10px auto 0;justify-content:center;flex-wrap:wrap}
.crop-actions span{font-size:13px;color:#667085;margin-left:6px}
.adjust-layout{display:grid;grid-template-columns:minmax(0,1fr) 225px;gap:14px;align-items:start}
.preview-wrap{position:relative;display:flex;justify-content:center;align-items:center;min-height:160px;max-height:65dvh}
.preview-wrap canvas{display:block;max-width:100%;max-height:65dvh;width:auto;height:auto}
.preview-loading{position:absolute;right:9px;top:9px;background:#ffffffdb;box-shadow:0 0 0 5px #ffffffdb;pointer-events:none}
.adjust-controls{background:#fff;padding:13px;border:1px solid var(--line);border-radius:8px}
.adjust-controls>label:not(.check-label){display:flex;justify-content:space-between;font-size:14px;margin-top:15px}
.adjust-controls input[type=range]{width:100%;margin:9px 0 2px;accent-color:var(--accent)}
output{color:#667085;font-variant-numeric:tabular-nums}.rotation-controls{display:flex;gap:8px}.rotation-controls button{flex:1}
.check-label{display:flex;align-items:center;gap:8px;margin-top:15px}.check-label input{width:17px;height:17px;accent-color:var(--accent)}
.editor-footer{display:flex;justify-content:flex-end;gap:8px;padding:9px 16px;background:#fff;border-top:1px solid var(--line)}
#edit-error{padding:0 16px;font-size:14px}[hidden]{display:none!important}
@media(max-width:640px){
  .toolbar{padding:10px;gap:8px;flex-wrap:wrap}.brand-wordmark{font-size:19px}.brand-logo{width:270px;height:auto}.upload-target{padding:22px 24px 20px}
  nav{margin-left:auto;gap:5px}.toolbar button,.toolbar .button{padding:7px 9px;font-size:13px}
  main{padding:7px 6px 12px}.page{margin-bottom:7px}.page-head{padding:4px 6px;gap:6px}
  .page-tools{gap:4px}.page-tools button,.page-tools a{padding:5px 7px}.page-order button{padding:4px 6px}
  .adjust-layout{grid-template-columns:1fr;gap:10px}.adjust-controls{padding:10px}
  .preview-wrap{max-height:43dvh;min-height:120px}.preview-wrap canvas{max-height:43dvh}
  .editor-panel{padding:10px}.crop-stage>img{max-height:59dvh}.corner{width:32px;height:32px}
  dialog{width:96vw}.editor-header{padding:8px 12px}.editor-tabs{padding:0 12px}.editor-footer{padding:8px 12px}
}
.signature-layer{position:absolute;inset:0;pointer-events:none}
.signature-stamp{position:absolute;pointer-events:auto;touch-action:none;cursor:move;outline:1px dashed transparent}
.signature-stamp>svg{display:block;width:100%;height:100%;pointer-events:none}
.signature-stamp.selected,.signature-stamp:focus-visible{outline-color:var(--accent)}
.signature-stamp::before{content:'';position:absolute;left:50%;top:50%;width:100%;height:100%;min-width:32px;min-height:32px;transform:translate(-50%,-50%)}
.annotation-tools{position:fixed;z-index:7;display:flex;align-items:center;gap:4px;padding:4px;background:#fff;border:1px solid var(--line);border-radius:7px;box-shadow:0 3px 14px #10182830;max-width:calc(100vw - 16px)}
.annotation-tools button{flex:none;width:32px;height:32px;border-radius:5px;padding:0;font-size:17px;line-height:1;touch-action:none;user-select:none}.annotation-tools [data-action=move]{cursor:move}.annotation-tools [data-action=resize]{cursor:ew-resize}
@media(pointer:coarse){.signature-stamp::before{min-width:44px;min-height:44px}.annotation-tools button{width:36px;height:36px}}
#signature-dialog{width:min(660px,96vw);max-height:94dvh}.signature-body{text-align:center;padding:12px 18px 14px;overflow:auto;max-height:calc(94dvh - 170px)}
.signature-tabs{display:flex;border-bottom:1px solid var(--line);padding:0 16px;gap:12px}.signature-tabs button{border:0;border-bottom:2px solid transparent;border-radius:0;padding:9px 5px;white-space:nowrap}.signature-tabs button[aria-selected=true]{border-bottom-color:var(--accent);color:var(--accent)}
#signature-list,#signature-fonts,#signature-other-fonts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:12px 0}
#signature-font-unavailable{text-align:left;margin:10px 0 16px;color:#667085;font-size:13px}.font-unavailable{box-shadow:none!important}.font-unavailable small{font-size:12px;font-weight:400}
.signature-item{position:relative;min-width:0}.signature-choice{width:100%;height:104px;padding:20px 32px 20px 14px}.signature-choice svg{width:100%;height:100%}.signature-choice[aria-pressed=true],.font-choice[aria-pressed=true]{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent);background:#f3f6ff}
.signature-delete{position:absolute;right:5px;top:5px;border:0;background:transparent;font-size:19px;padding:2px 7px}.name-input{display:flex;align-items:center;gap:12px;margin:14px 0}.name-input input{flex:1;min-width:0;border:1px solid var(--line);border-radius:6px;padding:9px 12px}
.font-choice{height:105px;flex-direction:column;min-width:0;padding:9px 12px;gap:8px}.font-choice>span{font-size:12px;color:#667085;align-self:flex-start}.font-choice svg{width:100%;height:60px}
.ink-controls{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:6px 0 12px;border-bottom:1px solid var(--line);margin-bottom:12px}.ink-controls>label{display:flex;align-items:center;gap:9px;font-size:14px}.ink-controls input[type=range]{width:125px;accent-color:var(--accent)}.ink-controls output{min-width:24px}
.ink-palette{display:grid;grid-template-columns:repeat(6,25px);gap:10px}.ink-swatch{display:block;width:25px;height:25px;padding:0;border-radius:50%;border:2px solid white;box-shadow:0 0 0 1px #c6ced9}.ink-swatch[aria-pressed=true]{box-shadow:0 0 0 2px var(--accent)}
.variation-preview{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:10px 0}.variation-preview figure{margin:0;min-width:0;background:#f8fafc;border:1px solid var(--line);border-radius:7px;padding:9px}.variation-preview figcaption{text-align:left;font-size:12px;color:#667085;margin-bottom:6px}.variation-preview figure>div{height:90px;padding:8px 0}.variation-preview svg{width:100%;height:100%}#signature-variation>label{display:flex;align-items:center;gap:8px;font-size:14px}.variation-strength{margin-top:12px}.variation-strength input{flex:1;min-width:60px;accent-color:var(--accent)}.variation-strength output{min-width:44px;font-size:12px}.variation-actions{display:flex;justify-content:flex-end;gap:8px;margin-bottom:12px}
.placement-toolbar{position:fixed;bottom:18px;left:50%;transform:translateX(-50%);z-index:6;display:flex;align-items:center;gap:16px;padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;box-shadow:0 4px 20px #10182830;white-space:nowrap;font-size:14px}
#signature-active{width:85px;height:36px}#signature-active svg{width:100%;height:100%}
@media(max-width:480px){.placement-toolbar{gap:8px;padding:7px 9px;font-size:12px;max-width:98vw}.placement-toolbar button{padding:7px 9px;font-size:12px}#signature-active{width:50px}.ink-controls{gap:14px}.signature-body{padding:10px}}
.placing-signature .document-surface{cursor:crosshair}.placing-signature .page-view{outline:2px solid #94b7ff;outline-offset:-2px}
#signature-code{display:block;width:min(280px,100%);height:auto;margin:0 auto 10px;image-rendering:pixelated}
#signature-qr a{color:var(--accent);font-size:14px}#signature-expiry{font-size:14px;color:#667085}
#signature-status{min-height:20px;margin:12px 0 0;font-size:14px}
.phone-body{background:#f3f5f8}.phone-pad{max-width:760px;padding:16px;margin:auto;min-height:0}.phone-logo{display:block;width:112px;height:auto;margin:0 auto}
.phone-pad h1{font-size:20px;margin:10px 0}.phone-canvas-wrap{border:1px solid #bac5d5;border-radius:10px;background:white;overflow:hidden}
#phone-canvas{display:block;width:100%;height:auto;touch-action:none;user-select:none;cursor:crosshair}
.handwrite-canvas{display:block;width:100%;height:auto;touch-action:none;user-select:none;cursor:crosshair}.handwrite-actions{display:flex;justify-content:flex-end;gap:9px;margin:12px 0}
@media(max-width:740px),(pointer:coarse){#signature-show-qr{display:none}}
.phone-actions{display:flex;justify-content:flex-end;gap:10px}.phone-pad #phone-status{font-size:14px;min-height:22px;margin:12px 0}
.page.busy .signature-layer{pointer-events:none}.page.busy .signature-stamp{pointer-events:none}
#signature-ink-controls[hidden],#signature-width-label[hidden]{display:none}
.toolbar button[aria-pressed=true],.fill-toolbar button[aria-pressed=true]{background:#eaf0ff;border-color:var(--accent);color:var(--accent)}
.fill-toolbar{position:fixed;bottom:12px;left:50%;transform:translateX(-50%);z-index:8;display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;width:max-content;max-width:calc(100vw - 20px);padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;box-shadow:0 4px 20px #10182830}
.fill-controls,.fill-controls>label{display:flex;align-items:center;gap:7px}.fill-toolbar input,.fill-toolbar select{font:inherit;font-size:14px;border:1px solid var(--line);border-radius:5px;padding:6px;min-width:0}.fill-toolbar input[type=number]{width:64px}.fill-toolbar input[type=range]{width:95px;accent-color:var(--accent)}.fill-toolbar button{padding:7px 10px}.fill-toolbar .ink-palette{grid-template-columns:repeat(6,20px);gap:6px}.fill-toolbar .ink-swatch{width:20px;height:20px;padding:0}#fill-status{flex-basis:100%;text-align:center;color:#b42318;font-size:13px;margin:0}
.rich-entry{position:absolute;z-index:4;pointer-events:auto;cursor:text;outline:1px dashed var(--accent);outline-offset:3px;padding:0;border:0;margin:0;min-height:1.4em;min-width:24px;max-width:100%;line-height:1.4;white-space:pre-wrap;overflow-wrap:anywhere;resize:none;overflow:auto;font-kerning:normal;font-variant-ligatures:none;user-select:text;touch-action:auto;background:#ffffff18}.rich-entry div,.rich-entry p{margin:0;padding:0;line-height:inherit}.rich-entry:empty::before{content:'輸入文字';color:#94a3b8;pointer-events:none}
.brush-draft{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:5}
body[data-fill=brush] .document-surface{touch-action:none;cursor:crosshair;user-select:none}body[data-fill=text] .document-surface{cursor:text}body[data-fill=text],body[data-fill=brush]{padding-bottom:110px}
@media(max-width:600px){.fill-toolbar{gap:7px;padding:8px;bottom:7px}.fill-controls{gap:5px;max-width:100%;flex-wrap:wrap;justify-content:center}.fill-toolbar select{max-width:110px}.fill-toolbar .ink-palette{grid-template-columns:repeat(6,20px)}.page-tools{gap:4px}.page-tools button{padding:7px 9px}}