.upload-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}.upload-zone{background:var(--card);border:2px dashed var(--border);border-radius:var(--r);padding:48px 24px;text-align:center;cursor:pointer;transition:all .15s;position:relative;min-height:300px}.upload-zone:hover{border-color:var(--t3);background:var(--surface)}.upload-zone.dragover{border-color:var(--accent);background:var(--accent-s)}.upload-zone.has-file{border-style:solid;border-color:var(--border);padding:0;overflow:hidden;cursor:default;text-align:left}.upload-zone.has-file:hover{background:var(--card);border-color:var(--border)}.upload-icon{margin-bottom:12px;color:var(--t3);display:flex;justify-content:center}.upload-label{font-size:13px;font-weight:600;color:var(--t1);margin-bottom:4px;display:flex;align-items:center;justify-content:center;gap:6px}.upload-label .dot{width:8px;height:8px;border-radius:50%;display:inline-block}.dot-a{background:var(--t3)}.dot-b{background:var(--accent)}.upload-hint{font-size:12.5px;color:var(--t3);margin-top:4px}.upload-btn{display:inline-block;margin-top:14px;font-family:var(--f);font-size:12.5px;font-weight:500;color:var(--accent-t);background:var(--accent-s);border:none;padding:6px 16px;border-radius:var(--rx);cursor:pointer}.upload-btn:hover{background:var(--accent);color:#fff}.upload-formats{font-size:11px;color:var(--t4);margin-top:10px}.img-preview{width:100%;height:240px;display:flex;align-items:center;justify-content:center;background:var(--surface);overflow:hidden}.img-preview img{max-width:100%;max-height:100%;object-fit:contain}.preview-bar{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-top:1px solid var(--border);gap:12px;flex-wrap:wrap}.preview-name{font-size:12.5px;font-weight:500;color:var(--t1);display:flex;align-items:center;gap:6px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.preview-name .dot{width:8px;height:8px;border-radius:50%;display:inline-block;flex-shrink:0}.preview-meta{font-size:11.5px;color:var(--t3);font-variant-numeric:tabular-nums;white-space:nowrap}.preview-remove{font-family:var(--f);font-size:11.5px;font-weight:500;color:var(--rm-t);background:none;border:none;cursor:pointer;padding:0}.preview-remove:hover{text-decoration:underline}.results.visible #inputs,.results:not(.visible){display:none}.results.visible{display:block}.inputs.hidden{display:none}.compare-viewport{background:var(--card);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;margin-bottom:16px;position:relative;min-height:420px;display:flex;align-items:stretch;justify-content:stretch}#viewport{flex:1;min-width:0;display:flex;align-items:stretch;justify-content:stretch}#viewport>*{flex:1;min-width:0}.cmp-slider{position:relative;width:100%;background:#1a1a1a;display:flex;align-items:center;justify-content:center;min-height:420px;overflow:hidden;user-select:none;-webkit-user-select:none}.cmp-slider img{max-width:100%;max-height:75vh;display:block;pointer-events:none;-webkit-user-drag:none}.cmp-clip{position:absolute;inset:0;overflow:hidden;display:flex;align-items:center;justify-content:center}.cmp-clip img{position:relative;max-width:100%;max-height:75vh;width:auto;height:auto;object-fit:contain}.cmp-handle{position:absolute;top:0;bottom:0;width:3px;background:var(--accent);cursor:ew-resize;z-index:3;transform:translate(-50%);outline:none}.cmp-handle:focus-visible .cmp-handle-knob{box-shadow:0 0 0 3px #2553e859,0 2px 6px #0003}.cmp-handle-knob{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:36px;height:36px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px #00000040}.cmp-label{position:absolute;bottom:12px;font-size:11px;font-weight:600;color:#fff;background:#0000008c;padding:3px 10px;border-radius:var(--rx);z-index:4;letter-spacing:.3px}.cmp-label-l{left:12px}.cmp-label-r{right:12px}.cmp-fade{position:relative;width:100%;background:#1a1a1a;display:flex;flex-direction:column;align-items:center;min-height:420px}.cmp-fade-base,.cmp-fade-overlay{max-width:100%;max-height:65vh;display:block;pointer-events:none}.cmp-fade-overlay{position:absolute;top:0;left:50%;transform:translate(-50%);max-height:65vh}.cmp-fade-control{margin-top:auto;margin-bottom:16px;display:flex;align-items:center;gap:12px;background:#ffffffeb;padding:8px 16px;border-radius:var(--rs);box-shadow:0 1px 3px #00000026;max-width:90%}.cmp-fade-label{font-size:11px;font-weight:600;color:var(--t2);letter-spacing:.3px}.cmp-fade-control input[type=range]{width:240px;accent-color:var(--accent)}.cmp-sbs{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);width:100%}.cmp-sbs-pane{background:var(--card);display:flex;flex-direction:column}.cmp-sbs-header{padding:10px 16px;font-size:12px;font-weight:600;color:var(--t2);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:6px}.cmp-sbs-header .dot{width:8px;height:8px;border-radius:50%;display:inline-block}.cmp-sbs-pane img{max-width:100%;max-height:65vh;object-fit:contain;align-self:center;padding:8px}.cmp-diff{position:relative;width:100%;background:#fff;display:flex;flex-direction:column;align-items:center;min-height:420px}.cmp-diff-base{max-width:100%;max-height:65vh;display:block;opacity:.4}.cmp-diff.changes-only .cmp-diff-base{opacity:0}.cmp-diff-overlay{position:absolute;top:0;left:50%;transform:translate(-50%);max-width:100%;max-height:65vh;pointer-events:none}.cmp-diff-toggle{margin-top:auto;margin-bottom:16px;font-size:12.5px;font-weight:500;color:var(--t2);background:var(--card);padding:8px 14px;border-radius:var(--rs);box-shadow:0 1px 3px #00000014;display:flex;align-items:center;gap:6px;cursor:pointer}.cmp-diff-toggle input{accent-color:var(--accent)}.diff-detail{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin-bottom:16px}.dd-card{background:var(--card);border:1px solid var(--border);border-radius:var(--rs);padding:14px 16px}.dd-label{font-size:11px;font-weight:600;color:var(--t3);text-transform:uppercase;letter-spacing:.3px;margin-bottom:4px}.dd-val{font-size:16px;font-weight:600;letter-spacing:-.2px}.dd-bar{height:6px;border-radius:3px;background:var(--surface);margin-top:8px;overflow:hidden}.dd-bar-fill{height:100%;border-radius:3px;transition:width .2s}.nodiff-card{display:none;background:var(--card);border:1.5px solid var(--add-line);border-radius:var(--r);padding:32px;text-align:center;margin-bottom:16px}.nodiff-card.visible{display:block}.nodiff-icon{width:48px;height:48px;border-radius:50%;background:var(--add-bg);display:flex;align-items:center;justify-content:center;margin:0 auto 14px;color:var(--add-t)}.nodiff-title{font-size:18px;font-weight:700;letter-spacing:-.3px;margin-bottom:4px;color:var(--add-t)}.nodiff-desc{font-size:14px;color:var(--t2);line-height:1.5;max-width:380px;margin:0 auto}.file-details{background:var(--card);border:1px solid var(--border);border-radius:var(--r);margin-bottom:16px;overflow:hidden}.fd-toggle{width:100%;display:flex;align-items:center;gap:6px;padding:12px 16px;font-family:var(--f);font-size:13px;font-weight:600;color:var(--t2);background:none;border:none;cursor:pointer;transition:all .12s}.fd-toggle:hover{color:var(--t1);background:var(--surface)}.fd-toggle svg{transition:transform .2s}.file-details.open .fd-toggle svg{transform:rotate(180deg)}.fd-panel{display:none;border-top:1px solid var(--border)}.file-details.open .fd-panel{display:block}.fd-grid{display:grid;grid-template-columns:1fr auto 1fr;font-size:13px}.fd-header{padding:10px 16px;font-size:11px;font-weight:600;color:var(--t3);text-transform:uppercase;letter-spacing:.3px;background:var(--surface);display:flex;align-items:center;gap:6px}.fd-header .dot{width:8px;height:8px;border-radius:50%;display:inline-block}.fd-header-mid{padding:10px 16px;font-size:11px;font-weight:600;color:var(--t3);text-transform:uppercase;letter-spacing:.3px;background:var(--surface);text-align:center;min-width:120px}.fd-val{padding:8px 16px;border-bottom:1px solid var(--border);color:var(--t1);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.fd-prop{padding:8px 16px;border-bottom:1px solid var(--border);color:var(--t3);text-align:center;font-size:12px;border-left:1px solid var(--border);border-right:1px solid var(--border)}.fd-diff{color:var(--rm-t);font-weight:500}.ai.hidden{display:none}.img-wrap{max-width:1400px;margin:0 auto;padding:0 32px;width:100%}.img-hero{text-align:center;padding:36px 24px 28px}.img-hero h1{font-family:var(--fd);font-size:34px;font-weight:800;letter-spacing:-.04em;line-height:1.15;margin-bottom:6px;color:var(--t1)}.img-hero p{font-size:15px;color:var(--t2);max-width:480px;margin:0 auto;line-height:1.5}@media (max-width:740px){.upload-grid,.diff-detail,.cmp-sbs{grid-template-columns:1fr}.compare-viewport,.cmp-slider,.cmp-fade,.cmp-diff{min-height:300px}.img-hero h1{font-size:26px}}