.stamp-footer{padding:14px 16px;border-top:1px solid #eef0f1;background:#fff}.stamp-footer div{margin-bottom:10px}.stamp-button{width:100%;height:40px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid #1456f0;border-radius:6px;color:#fff;background:#1456f0;font-size:15px;font-weight:500}.stage-focus{background:#e9ebee}.stage-focus .seal-library{width:240px}.stage-focus .pdf-canvas{top:0;right:0;bottom:0;left:240px;background:#e9ebee}.stage-focus .props-panel{top:20px;right:20px;bottom:auto;max-height:calc(100% - 40px);width:288px;overflow:hidden;border:1px solid #e5e6eb;border-radius:10px;box-shadow:0 8px 24px #1f23291f}.stage-focus .library-hint{display:none}.stage-canvas{background:#2a2e34}.stage-canvas .pdf-canvas{top:0;right:0;bottom:0;left:0;background:#2a2e34}.stage-canvas .seal-library{top:auto;left:50%;bottom:18px;width:min(72%,760px);height:118px;transform:translate(-50%);overflow:hidden;border:0;border-radius:14px;box-shadow:0 8px 28px #00000052}.stage-canvas .panel-head{padding:8px 14px}.stage-canvas .seal-list{flex-direction:row;overflow-x:auto;overflow-y:hidden;gap:10px;padding:10px 12px}.stage-canvas .seal-card{width:78px;flex:0 0 auto;grid-template-columns:1fr;justify-items:center;gap:4px;padding:4px;border:0}.stage-canvas .seal-card:after,.stage-canvas .seal-card small,.stage-canvas .seal-name{display:none}.stage-canvas .seal-thumb{grid-row:auto;width:62px;height:62px}.stage-canvas .props-panel{top:18px;right:18px;bottom:auto;width:280px;max-height:calc(100% - 160px);overflow:hidden;border:0;border-radius:12px;box-shadow:0 8px 28px #00000052}.page-rail{position:absolute;left:16px;top:16px;bottom:16px;z-index:8;width:48px;display:flex;flex-direction:column;align-items:center;gap:6px;padding:10px 0;overflow:auto;border-radius:10px;background:#ffffff0f}.page-rail button{width:30px;height:30px;border:0;border-radius:7px;color:#c9cdd4;background:transparent;font-family:JetBrains Mono,ui-monospace,monospace;font-size:12px}.modal-backdrop,.submitting-cover,.success-cover{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;display:flex;align-items:center;justify-content:center;padding:40px;background:#1f232973}.success-cover{top:56px;right:0;bottom:0;left:0;z-index:50;overflow:auto;background:#f5f6f7}.modal-surface,.submitting-cover>div,.success-card{width:420px;max-width:92vw;padding:24px;border-radius:8px;background:#fff;box-shadow:0 8px 24px #1f23291a}.confirm-card,.seal-modal,.success-card{display:grid;gap:16px}.confirm-card h2,.seal-modal h2,.success-card h2{font-size:16px;font-weight:500}.confirm-card p,.seal-modal p,.success-card p{color:#646a73;font-size:13px;line-height:22px}.summary-box{display:grid;gap:10px;padding:14px;border:1px solid #eef0f1;border-radius:8px;background:#f7f8fa;font-size:13px}.summary-box span{display:flex;justify-content:space-between;gap:18px;color:#646a73}.summary-box b{min-width:0;overflow:hidden;color:#1f2329;text-overflow:ellipsis;white-space:nowrap;font-weight:500}.modal-actions,.success-actions{display:flex;justify-content:flex-end;gap:10px}.modal-actions button,.success-actions button{height:36px;display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:0 18px;font-size:14px;font-weight:500}.modal-actions .blue,.success-actions .blue{border-color:#1456f0;color:#fff;background:#1456f0}.seal-modal{width:440px;max-width:100%}.seal-upload-zone{display:grid;justify-items:center;gap:8px;padding:24px;border:1.5px dashed #c9cdd4;border-radius:8px;color:#646a73;text-align:center;font-size:13px}.seal-modal label{display:grid;gap:6px}.seal-modal label span{color:#646a73;font-size:12px}.seal-modal input{width:100%;height:32px;padding:0 10px;border:1px solid #dee0e3;border-radius:6px;outline:none}.sub-options{display:flex;gap:8px}.sub-options button{flex:1;height:30px;border:1px solid #dee0e3;border-radius:6px;color:#646a73;background:#fff;font-size:13px;font-weight:500}.sub-options button.active{border-color:#1456f0;color:#1456f0;background:#ebf1fe}.submitting-cover{z-index:70}.submitting-cover>div{width:380px;display:grid;justify-items:center;gap:10px;text-align:center}.submitting-cover svg{color:#1456f0}.submitting-cover span{color:#8f959e;font-size:12px}.success-card{width:480px;padding:32px;border:1px solid #dee0e3;text-align:center;box-shadow:none}.success-icon{width:60px;height:60px;display:grid;place-items:center;margin:0 auto;border-radius:999px;color:#00a870;background:#e8f7f0}.success-card h2{font-size:20px;font-weight:600}.success-actions{justify-content:center}.success-actions button{height:40px}.success-actions .plain{border:0;color:#646a73;background:transparent}.toast{position:fixed;left:50%;top:72px;z-index:90;display:inline-flex;align-items:center;gap:8px;transform:translate(-50%);padding:8px 16px;border:1px solid #dee0e3;border-radius:6px;color:#1f2329;background:#fff;box-shadow:0 4px 12px #1f232914;font-size:13px}.toast svg{color:#00a870}.error-toast{border-color:#f7c8c6;color:#b42318}.seal-drag-preview{position:fixed;z-index:1000;width:150px;height:150px;margin:-75px 0 0 -75px;pointer-events:none;opacity:.92;transform:translateZ(0)}.seal-drag-preview img,.seal-drag-preview svg{width:100%;height:100%;object-fit:contain;filter:drop-shadow(0 10px 18px rgba(31,35,41,.24))}.stamp-target{position:absolute;z-index:1;display:grid;place-items:center;gap:3px;padding:0;border:1.5px dashed #f59e0b;border-radius:8px;color:#9a3412;background:#fff7edb8;cursor:pointer;font-size:12px;font-weight:500}.stamp-target:hover{border-color:#ea580c;background:#ffedd5e0}.stamp-target span{pointer-events:none}.target-block{padding:12px;border:1px solid #fed7aa;border-radius:8px;background:#fff7ed}.target-status{display:flex;align-items:center;justify-content:space-between;gap:10px}.target-status span{display:inline-flex;align-items:center;gap:6px;color:#9a3412;font-size:13px;font-weight:500}.target-status b{color:#c2410c;font-size:13px}.target-block button{height:32px;justify-content:center;color:#fff;background:#ea580c}.target-block button:disabled{color:#8f959e;background:#f2f3f5}.target-picker{position:fixed;z-index:1001;width:240px;max-height:320px;overflow:hidden;border:1px solid #dee0e3;border-radius:10px;background:#fff;box-shadow:0 16px 40px #1f232933;transform:translate(-12px,12px)}.target-picker-head{height:38px;display:flex;align-items:center;justify-content:space-between;padding:0 10px 0 12px;border-bottom:1px solid #eef0f1}.target-picker-head b{font-size:13px;font-weight:500}.target-picker-head button{width:26px;height:26px;display:grid;place-items:center;padding:0}.target-picker-list{max-height:280px;overflow:auto;display:grid;gap:6px;padding:8px}.target-picker-list button{min-width:0;display:grid;grid-template-columns:42px minmax(0,1fr);align-items:center;gap:8px;padding:6px;text-align:left}.target-picker-list img,.target-picker-list svg{width:38px;height:38px;object-fit:contain}.target-picker-list span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px}.auth-check{min-height:100vh;display:grid;place-items:center;color:#1f2329;background:#f5f6f7}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:980px){.design-app{min-height:100vh;height:auto;overflow:auto}.top-header,.workspace-toolbar{position:sticky;top:0}.steps,.user-chip{display:none}.workspace-view{min-height:900px}.stage,.stage-focus,.stage-canvas{display:grid;grid-template-columns:1fr;overflow:visible}.seal-library,.props-panel,.pdf-canvas,.stage-focus .seal-library,.stage-focus .props-panel,.stage-focus .pdf-canvas,.stage-canvas .seal-library,.stage-canvas .props-panel,.stage-canvas .pdf-canvas{position:relative;inset:auto;width:auto;height:auto;max-height:none;transform:none;border-radius:0;box-shadow:none}.seal-list,.stage-canvas .seal-list{flex-direction:row;overflow-x:auto}.seal-card,.stage-canvas .seal-card{width:170px;flex:0 0 auto}}:root{color:#1f2329;background:#f5f6f7;font-family:PingFang SC,-apple-system,BlinkMacSystemFont,Microsoft YaHei,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}::-webkit-scrollbar{width:11px;height:11px}::-webkit-scrollbar-thumb{background:#c2c6cc;border:3px solid transparent;border-radius:7px;background-clip:padding-box}::-webkit-scrollbar-thumb:hover{background:#a9aeb5;background-clip:padding-box}.design-app{width:100vw;height:100vh;display:flex;flex-direction:column;overflow:hidden;background:#f5f6f7}.hidden-input{position:fixed;left:-9999px;width:1px;height:1px;opacity:0}.top-header{z-index:30;height:56px;flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 20px;background:#fff;border-bottom:1px solid #dee0e3}.brand-cluster,.user-chip,.steps,.step-wrap{display:flex;align-items:center}.brand-cluster{min-width:200px;gap:10px}.brand-cluster img{width:auto;height:28px;object-fit:contain}.brand-divider{width:1px;height:18px;background:#e5e6eb}.brand-cluster b{font-size:15px;font-weight:500}.steps{gap:6px}.step-wrap{gap:7px}.step-dot{width:20px;height:20px;display:grid;place-items:center;border-radius:999px;color:#8f959e;background:#e5e6eb;font-family:JetBrains Mono,ui-monospace,monospace;font-size:11px;font-weight:500}.step-dot.active{color:#fff;background:#1456f0}.step-label{color:#bbbfc4;font-size:13px;white-space:nowrap}.step-label.active{color:#1f2329;font-weight:500}.step-bar{width:28px;height:2px;margin:0 4px;background:#e5e6eb}.step-bar.active{background:#1456f0}.user-chip{min-width:200px;justify-content:flex-end;gap:10px}.user-chip span{color:#8f959e;font-family:JetBrains Mono,ui-monospace,monospace;font-size:12px}.user-chip b{width:28px;height:28px;display:grid;place-items:center;border-radius:999px;color:#fff;background:#1456f0;font-size:13px;font-weight:500}.upload-view{flex:1;display:flex;align-items:center;justify-content:center;overflow:auto;padding:40px}.upload-card{width:560px;max-width:100%}h1,h2,p{margin:0}.upload-card h1{margin-bottom:6px;font-size:24px;line-height:32px;font-weight:600}.upload-card p{margin-bottom:24px;color:#646a73;font-size:14px}.contract-drop{display:flex;flex-direction:column;align-items:center;padding:40px 24px;border:1.5px dashed #c9cdd4;border-radius:10px;background:#fff;text-align:center;transition:border-color .15s,background .15s}.contract-drop.hot{border-color:#1456f0;background:#f5f9ff}.upload-orb{width:56px;height:56px;display:grid;place-items:center;margin-bottom:16px;border-radius:999px;color:#1456f0;background:#ebf1fe}.contract-drop strong{margin-bottom:4px;font-size:16px;font-weight:500}.contract-drop span,.quick-row span,.convert-card small,.progress-meta{color:#8f959e;font-size:12px}.quick-row{display:flex;align-items:center;gap:10px;margin-top:16px}.quick-row button,.panel-head button,.icon-button,.segmented button,.modal-actions button,.success-actions button{border-radius:6px;border:1px solid #dee0e3;background:#fff;color:#1f2329}.quick-row button,.panel-head button{height:32px;display:inline-flex;align-items:center;gap:6px;padding:0 14px;font-size:13px;font-weight:500}.quick-row button svg:first-child{color:#1456f0}.convert-card{width:460px;max-width:100%;padding:28px;border:1px solid #dee0e3;border-radius:8px;background:#fff}.convert-title{display:flex;align-items:center;gap:12px;margin-bottom:20px}.convert-title>span{width:40px;height:40px;display:grid;place-items:center;flex:0 0 auto;border-radius:6px;color:#1456f0;background:#ebf1fe}.convert-title div{min-width:0;display:grid;gap:3px}.convert-title b,.file-title b,.seal-name,.selected-title b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.convert-title .spin{margin-left:auto;color:#1456f0}.progress-track{height:6px;overflow:hidden;border-radius:999px;background:#ebecee}.progress-track span{display:block;height:100%;border-radius:inherit;background:#1456f0;transition:width .15s}.progress-meta{display:flex;justify-content:space-between;margin-top:8px;font-family:JetBrains Mono,ui-monospace,monospace}.workspace-view{flex:1;min-height:0;display:flex;flex-direction:column}.workspace-toolbar{z-index:20;height:48px;flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 16px;background:#fff;border-bottom:1px solid #dee0e3}.file-title,.toolbar-actions{display:flex;align-items:center;gap:12px;min-width:0}.file-title{color:#f54a45}.file-title b{max-width:280px;color:#1f2329;font-size:13px;font-weight:500}.file-title span{color:#8f959e;font-family:JetBrains Mono,ui-monospace,monospace;font-size:12px}.segmented{display:flex;gap:2px;padding:2px;border-radius:6px;background:#f2f3f5}.segmented button{height:26px;padding:0 12px;border:0;background:transparent;color:#646a73;font-size:13px}.segmented button.active{color:#1456f0;background:#fff;box-shadow:0 1px 2px #1f232914;font-weight:500}.toolbar-divider{width:1px;height:20px;background:#e5e6eb}.icon-button{width:28px;height:28px;display:grid;place-items:center;padding:0;color:#646a73}.zoom-label{width:48px;color:#646a73;text-align:center;font-family:JetBrains Mono,ui-monospace,monospace;font-size:12px}.stage{position:relative;flex:1;min-height:0;overflow:hidden;background:#ecedef}.seal-library,.props-panel{position:absolute;top:0;bottom:0;z-index:5;display:flex;flex-direction:column;background:#fff}.seal-library{left:0;width:262px;border-right:1px solid #dee0e3}.props-panel{right:0;width:300px;border-left:1px solid #dee0e3}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:14px;border-bottom:1px solid #eef0f1}.panel-head b{font-size:13px;font-weight:500}.panel-head button{height:26px;padding:0 10px;color:#1456f0;font-size:12px}.seal-list{flex:1;overflow:auto;display:flex;flex-direction:column;gap:8px;padding:12px}.seal-card{min-width:0;display:grid;grid-template-columns:52px minmax(0,1fr) auto;align-items:center;gap:4px 10px;padding:8px;border:1px solid #eef0f1;border-radius:8px;background:#fff;color:#1f2329;text-align:left;cursor:grab;touch-action:none}.seal-card:active{cursor:grabbing}.seal-card.selected{border-color:#1456f0;box-shadow:0 0 0 2px #1456f01f}.seal-thumb{grid-row:1 / span 2;width:52px;height:52px;display:grid;place-items:center;border:1px solid #eef0f1;border-radius:8px;background:#fafafb}.seal-thumb img,.riding-pick img,.selected-title img{width:80%;height:80%;object-fit:contain}.seal-name{max-width:100%;font-size:13px;font-weight:500}.seal-card small{color:#8f959e;font-size:12px}.seal-card:after{content:"⠿";grid-row:1 / span 2;grid-column:3;color:#c9cdd4;font-size:16px}.library-hint{padding:10px 14px;border-top:1px solid #eef0f1;color:#8f959e;font-size:12px;line-height:18px}.pdf-canvas{position:absolute;top:0;right:300px;bottom:0;left:262px;overflow:auto;background:#ecedef}.stamp-carrying,.stamp-carrying *{cursor:none!important}.pdf-pages{width:100%;min-width:min-content;display:flex;flex-direction:column;align-items:center;gap:0;padding:32px 32px 80px}.pdf-page-frame{display:flex;flex-direction:column;align-items:center}.pdf-page{position:relative;overflow:hidden;flex:0 0 auto;background:#fff;border:1px solid #dee0e3;box-shadow:0 1px 4px #1f232924;cursor:copy}.pdf-page canvas{display:block}.page-caption{margin:10px 0 26px;color:#8f959e;font-family:JetBrains Mono,ui-monospace,monospace;font-size:12px}.stamp-overlay{position:absolute;display:grid;place-items:center;overflow:visible;touch-action:none;cursor:move;-webkit-user-select:none;user-select:none;mix-blend-mode:multiply;z-index:2}.stamp-overlay img{width:100%;height:100%;object-fit:contain;pointer-events:none}.stamp-overlay.selected:after{content:"";position:absolute;top:-4px;right:-4px;bottom:-4px;left:-4px;border:1.5px dashed #1456f0;border-radius:4px;pointer-events:none}.stamp-delete{position:absolute;top:-13px;right:-13px;z-index:2;width:24px;height:24px;display:grid;place-items:center;padding:0;border:1px solid #dee0e3;border-radius:999px;color:#f54a45;background:#fff;box-shadow:0 1px 4px #1f232929}.settings-body{flex:1;overflow:auto;display:flex;flex-direction:column;gap:18px;padding:16px}.setting-block{display:grid;gap:10px}.setting-block+.setting-block{padding-top:18px;border-top:1px solid #eef0f1}.setting-block h2{font-size:13px;font-weight:500}.riding-row{display:flex;align-items:center;justify-content:space-between}.riding-row span{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500}.setting-block p{color:#8f959e;font-size:12px;line-height:18px}.switch input{position:absolute;opacity:0}.switch i{position:relative;display:block;width:40px;height:22px;border-radius:999px;background:#c9cdd4;transition:background .15s}.switch i:after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:999px;background:#fff;box-shadow:0 1px 2px #0003;transition:left .15s}.switch input:checked+i{background:#1456f0}.switch input:checked+i:after{left:20px}.riding-pick{display:grid;gap:8px;margin-top:2px}.riding-pick>span{color:#646a73;font-size:12px}.riding-pick div{display:flex;flex-wrap:wrap;gap:8px}.riding-pick button{width:40px;height:40px;display:grid;place-items:center;padding:0;border:1px solid #dee0e3;border-radius:8px;background:#fff}.riding-pick button.active{border:2px solid #1456f0}.selected-card{padding:12px;border:1px solid #eef0f1;border-radius:8px;background:#f7f8fa}.selected-title{display:flex;align-items:center;gap:10px;margin-bottom:12px}.selected-title>span{width:40px;height:40px;display:grid;place-items:center;flex:0 0 auto;border:1px solid #eef0f1;border-radius:6px;background:#fff}.selected-title div{min-width:0;display:grid;gap:3px}.selected-title small,.stamp-footer div{color:#646a73;font-size:12px}.stamp-footer div{display:flex;align-items:center;justify-content:space-between}.stamp-footer b{color:#1f2329;font-family:JetBrains Mono,ui-monospace,monospace;font-weight:500}.danger-button{width:100%;height:30px;display:inline-flex;align-items:center;justify-content:center;gap:6px;margin-top:12px;border:1px solid #f7c8c6;border-radius:6px;color:#f54a45;background:#fff;font-size:13px;font-weight:500}.default-size-button{width:100%;height:30px;display:inline-flex;align-items:center;justify-content:center;margin-top:4px;border:1px solid #dee0e3;border-radius:6px;color:#1456f0;background:#fff;font-size:13px;font-weight:500}.empty-box{display:grid;place-items:center;min-height:74px;border:1px dashed #dee0e3;border-radius:8px;color:#8f959e;background:#f7f8fa;text-align:center;font-size:12px;line-height:18px}@media(max-width:980px){.design-app{min-height:100vh;height:auto;overflow:auto}.top-header,.workspace-toolbar{position:sticky;top:0}.workspace-view{min-height:900px}.stage,.stage-focus,.stage-canvas{display:grid;grid-template-columns:1fr;overflow:visible}.seal-library,.props-panel,.pdf-canvas,.stage-focus .seal-library,.stage-focus .props-panel,.stage-focus .pdf-canvas,.stage-canvas .seal-library,.stage-canvas .props-panel,.stage-canvas .pdf-canvas{position:relative;inset:auto;width:auto;height:auto;max-height:none;transform:none;border-radius:0;box-shadow:none}.pdf-canvas,.stage-focus .pdf-canvas,.stage-canvas .pdf-canvas{min-height:70vh;overflow:auto}.pdf-pages{align-items:flex-start;padding:14px 16px 64px}}