:root{--ink: #252127;--muted: #756d76;--line: #ded6d4;--paper: #fbf8f2;--paper-deep: #f3eee6;--plum: #3d2d46;--plum-soft: #5f4a68;--coral: #e86c58;--coral-deep: #be4e45;--sage: #bec8b3;--shadow: 0 16px 40px rgba(53, 39, 50, .12);--radius-lg: 20px;--radius-md: 12px}*{box-sizing:border-box}body{margin:0;min-width:320px;color:var(--ink);background:radial-gradient(circle at 2% 2%,rgba(232,108,88,.12),transparent 29rem),radial-gradient(circle at 93% 17%,rgba(190,200,179,.28),transparent 31rem),var(--paper);font-family:-apple-system,BlinkMacSystemFont,SF Pro Text,PingFang SC,Noto Sans SC,sans-serif;text-rendering:optimizeLegibility}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}.app-shell{min-height:100vh}.topbar{height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(20px,4vw,56px);border-bottom:1px solid rgba(61,45,70,.1);background:#fbf8f2e6;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.brand{display:flex;align-items:center;gap:9px;color:var(--plum);font-family:Georgia,Songti SC,STSong,serif;font-size:16px;font-weight:700;letter-spacing:-.02em}.brand em{color:var(--muted);font-family:inherit;font-size:12px;font-style:normal;font-weight:500}.brand-mark{position:relative;width:22px;height:22px;display:grid;place-items:center;color:var(--paper);background:var(--coral);border-radius:6px 6px 6px 2px;box-shadow:3px 3px 0 var(--plum);font-family:Georgia,serif;font-size:13px;line-height:1}.topbar-actions{display:flex;align-items:center;gap:16px}.privacy-note{display:flex;align-items:center;gap:8px;color:var(--plum-soft);font-size:12px;letter-spacing:.03em}.privacy-dot{width:7px;height:7px;border-radius:999px;background:#759b70;box-shadow:0 0 0 4px #759b7024}.header-upload-button{display:inline-flex;align-items:center;gap:9px;padding:8px 12px;color:var(--paper);border:0;border-radius:8px;background:var(--plum);font-size:12px;font-weight:750;transition:transform .16s ease,background .16s ease}.header-upload-button:hover{background:var(--plum-soft);transform:translateY(-1px)}.header-upload-button span{font-size:15px;font-weight:400}.workspace{width:min(1440px,calc(100% - 64px));margin:0 auto;padding:32px 0 90px;animation:appear .5s ease both}.studio{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px;align-items:start}.controls{padding:24px 26px 28px;border:1px solid rgba(61,45,70,.1);border-radius:var(--radius-lg);background:#ffffff9e;box-shadow:var(--shadow)}.compact-file-card{margin-bottom:22px}.loading-note{margin:-10px 0 20px;color:var(--muted);font-size:13px}.file-card{display:flex;align-items:center;gap:13px;padding:14px 16px;border-radius:var(--radius-md);background:var(--paper-deep)}.file-card-error{border:1px solid rgba(190,78,69,.28);background:#e86c5814}.file-icon{width:37px;height:43px;display:grid;place-items:center;flex:0 0 auto;color:var(--paper);background:var(--coral);border-radius:5px 5px 9px;font-family:Georgia,serif;font-size:10px;font-weight:700}.file-details{min-width:0;flex:1}.file-details strong{display:block;overflow:hidden;color:var(--plum);font-size:13px;text-overflow:ellipsis;white-space:nowrap}.file-details span{display:block;margin-top:5px;color:var(--muted);font-size:11px}.remove-file{width:30px;height:30px;border:0;border-radius:50%;color:var(--muted);background:transparent;font-size:16px}.remove-file:hover{color:var(--coral-deep);background:#e86c581a}.step{position:relative;padding-left:43px}.step+.step{margin-top:27px}.step+.step:before{position:absolute;top:-27px;left:13px;width:1px;height:27px;background:var(--line);content:""}.step-number{position:absolute;top:0;left:0;width:27px;height:27px;display:grid;place-items:center;color:var(--plum);border:1px solid rgba(61,45,70,.26);border-radius:50%;background:var(--paper-deep);font-size:11px;font-weight:800}.step.active .step-number{color:var(--paper);border-color:var(--plum);background:var(--plum)}.step-heading{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:11px}.step-heading h2{margin-bottom:0;color:var(--plum);font-family:Georgia,Songti SC,serif;font-size:19px;letter-spacing:-.035em}.step-status{color:var(--muted);font-size:12px}.step-status strong{color:var(--plum)}.selection-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.selection-count{color:var(--muted);font-size:13px}.selection-count strong{color:var(--plum);font-size:14px}.tool-actions{display:flex;align-items:center;gap:4px}.text-button{padding:7px 8px;color:var(--plum-soft);border:0;background:transparent;font-size:12px}.text-button:hover{color:var(--coral-deep)}.page-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;max-height:350px;overflow-y:auto;padding:3px}.page-tile{position:relative;min-width:0;padding:6px 6px 8px;border:1px solid var(--line);border-radius:10px;background:#fff9;transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease}.page-tile:hover{transform:translateY(-2px);box-shadow:0 7px 14px #3d2d4614}.page-tile.selected{border-color:var(--plum);box-shadow:0 0 0 2px #3d2d461f}.page-check{position:absolute;top:9px;right:9px;width:18px;height:18px;display:grid;place-items:center;color:transparent;border:1px solid #c9c0c2;border-radius:50%;background:#ffffffdb;font-size:11px;z-index:1}.page-tile.selected 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button.active{color:var(--plum);border-color:var(--plum);background:var(--paper);font-weight:700}.gap-shortcuts{display:flex;gap:10px}.gap-shortcuts button{padding:0;color:var(--plum-soft);border:0;background:transparent;font-size:11px;text-decoration:underline;text-underline-offset:3px}.gap-shortcuts button:hover{color:var(--coral-deep)}.gap-cleanup-status{display:flex;align-items:center;gap:6px;color:var(--plum-soft);font-size:11px}.gap-cleanup-status:before{width:6px;height:6px;border-radius:50%;background:#759b70;content:""}.gap-cleanup-status.off{color:var(--muted)}.gap-cleanup-status.off:before{background:var(--line)}.toggle{position:relative;flex:0 0 auto;width:38px;height:22px}.toggle input{position:absolute;width:1px;height:1px;opacity:0}.toggle span{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:999px;background:#c9c0c2;transition:background .16s ease}.toggle 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#fbf8f2d9;pointer-events:auto;touch-action:none}.crop-handle-top,.crop-handle-bottom{left:50%;width:48px;height:9px;transform:translate(-50%,-50%);cursor:ns-resize}.crop-handle-top{top:0}.crop-handle-bottom{top:100%}.crop-handle-left,.crop-handle-right{top:50%;width:9px;height:48px;transform:translate(-50%,-50%);cursor:ew-resize}.crop-handle-left{left:0}.crop-handle-right{left:100%}.crop-handle-top-left,.crop-handle-top-right,.crop-handle-bottom-left,.crop-handle-bottom-right{width:13px;height:13px;border-radius:4px}.crop-handle-top-left{top:0;left:0;transform:translate(-50%,-50%);cursor:nwse-resize}.crop-handle-top-right{top:0;left:100%;transform:translate(-50%,-50%);cursor:nesw-resize}.crop-handle-bottom-left{top:100%;left:0;transform:translate(-50%,-50%);cursor:nesw-resize}.crop-handle-bottom-right{top:100%;left:100%;transform:translate(-50%,-50%);cursor:nwse-resize}.action-dock{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:14px;padding:12px 14px;border:1px solid rgba(61,45,70,.14);border-radius:14px;background:#fbf8f2f0;box-shadow:0 12px 28px #3527321f;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.preview-tools{display:inline-flex;align-items:center;gap:3px;padding:3px;border:1px solid var(--line);border-radius:9px;background:#ffffff8c}.preview-tools button{min-height:29px;padding:5px 10px;color:var(--muted);border:0;border-radius:6px;background:transparent;font-size:11px;white-space:nowrap}.preview-tools button:hover,.preview-tools button.active{color:var(--plum);background:var(--paper);box-shadow:0 1px 4px #3d2d461a;font-weight:700}.preview-action-buttons{display:flex;align-items:center;gap:8px}.crop-button{min-height:42px;padding:10px 15px;color:var(--plum);border:1px solid rgba(61,45,70,.2);border-radius:10px;background:transparent;font-size:12px;font-weight:700}.crop-button:hover,.crop-button.active{border-color:var(--plum);background:#3d2d4612}.preview-action-buttons .primary-button,.preview-action-buttons .primary-button:hover{box-shadow:none}.action-dock .primary-button{min-width:180px;padding:13px 20px}.outline-button{padding:9px 13px;color:var(--paper);border:1px solid rgba(251,248,242,.3);background:transparent;font-size:11px}.outline-button:hover{border-color:var(--paper);background:#ffffff14}.primary-button{padding:14px 21px;color:var(--paper);border:0;border-radius:999px;background:var(--plum);box-shadow:0 7px #3d2d4621;font-size:13px;font-weight:800;white-space:nowrap;transition:transform .16s ease,box-shadow .16s ease,background .16s ease}.primary-button:hover:not(:disabled){background:var(--plum-soft);transform:translateY(-2px)}.primary-button:active:not(:disabled){transform:translateY(0)}.primary-button:disabled{opacity:.42;box-shadow:none}.preview-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;min-height:270px;margin:auto;color:var(--muted);text-align:center}.preview-empty-mark{width:46px;height:54px;display:grid;place-items:center;margin-bottom:6px;color:var(--plum);border-radius:7px 7px 12px;background:var(--sage);font-family:Georgia,serif;font-size:22px;box-shadow:6px 6px #e86c58a6}.preview-empty strong{color:var(--plum);font-family:Georgia,Songti SC,serif;font-size:19px;font-weight:600}.preview-empty span:last-child{font-size:11px;line-height:1.7}.toast{position:fixed;right:24px;bottom:24px;max-width:min(360px,calc(100vw - 48px));padding:14px 17px;color:var(--paper);border-radius:12px;background:var(--coral-deep);box-shadow:0 15px 36px #5b262442;font-size:12px;line-height:1.5;animation:toast-in .22s ease both;z-index:10}.drag-overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background:#fbf8f2db;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);pointer-events:none;z-index:30}.drag-overlay-inner{padding:26px 40px;color:var(--plum);border:2px dashed var(--coral);border-radius:20px;background:var(--paper);font-size:16px;font-weight:800;box-shadow:0 18px 46px #3d2d4624}.success-dialog-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;padding:24px;background:#25212785;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);z-index:20}.success-dialog{width:min(460px,100%);padding:33px;border-radius:24px;background:var(--paper);box-shadow:0 24px 80px #0000003d}.success-icon{width:52px;height:52px;display:grid;place-items:center;margin-bottom:22px;color:var(--paper);border:1px solid rgba(61,45,70,.08);border-radius:50%;background:#759b70;box-shadow:0 7px #759b7029;font-size:26px}.success-dialog h2{margin-bottom:9px;color:var(--plum);font-family:Georgia,Songti SC,serif;font-size:28px;letter-spacing:-.04em}.success-dialog p{margin-bottom:24px;color:var(--muted);font-size:13px;line-height:1.7}.dialog-actions{display:flex;gap:10px}.dialog-actions .primary-button{flex:1}.dialog-secondary{color:var(--plum);border-color:var(--line)}@keyframes toast-in{0%{opacity:0;transform:translateY(9px)}to{opacity:1;transform:translateY(0)}}@keyframes appear{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@media(max-width:900px){.workspace{width:min(720px,calc(100% - 32px));padding-top:25px}.studio{grid-template-columns:1fr}.preview-stage{position:static}.canvas-wrap{height:520px}}@media(max-width:520px){.topbar{height:52px;padding:0 16px}.brand{font-size:15px}.brand em{display:none}.topbar-actions{gap:8px}.header-upload-button{padding:7px 9px;font-size:11px}.privacy-note{font-size:0}.privacy-note .privacy-dot{margin-right:4px}.workspace{width:calc(100% - 20px);padding-top:22px}.controls{padding:20px 15px 24px;border-radius:18px}.step{padding-left:40px}.page-grid{grid-template-columns:repeat(3,minmax(0,1fr));max-height:330px}.quality-row{grid-template-columns:1fr}.quality-label{min-height:0;display:flex;align-items:center;justify-content:space-between;padding:11px 12px;text-align:left}.quality-label>small{margin-top:0}.advanced-settings{grid-template-columns:1fr}.preview-stage{padding:16px;border-radius:18px}.canvas-wrap{height:480px;padding:18px 12px}.action-dock{align-items:stretch;flex-direction:column;gap:10px}.preview-tools{width:100%}.preview-tools button{flex:1}.preview-action-buttons{width:100%}.preview-action-buttons .crop-button,.preview-action-buttons .primary-button{flex:1}.action-dock .primary-button{width:100%}}