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:root{--bg: #f4ece0;--bg-2: #efe4d3;--card: #fffdf9;--card-2: #faf4ea;--ink: #37291d;--ink-2: #6d5b48;--muted: #94806a;--line: #e4d7c3;--line-2: #d8c7ae;--brand: #b07a4b;--brand-2: #8a5a34;--brand-soft: #f0e2d2;--ok: #4f7a4f;--shadow: 0 1px 2px rgba(60,40,20,.05), 0 8px 24px rgba(90,60,30,.06);--radius: 14px;--radius-sm: 10px;--font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Roboto, Helvetica, Arial, sans-serif}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}:target,#guide,#faq,#features,#showcase{scroll-margin-top:84px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}body{margin:0;font-family:var(--font);color:var(--ink);background:radial-gradient(1200px 500px at 100% -8%,#efe0cc,#efe0cc00 60%),radial-gradient(900px 460px at -6% 4%,#f2e7d6,#f2e7d600 55%),var(--bg);line-height:1.6;font-size:15px}[hidden]{display:none!important}a{color:var(--brand-2)}img{max-width:100%}.topbar{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 22px;padding-left:calc(max(24px,(100% - 1232px) / 2) + env(safe-area-inset-left));padding-right:calc(max(24px,(100% - 1232px) / 2) + env(safe-area-inset-right));padding-top:calc(12px + env(safe-area-inset-top));background:#faf4ebdb;backdrop-filter:saturate(1.1) blur(10px);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;min-width:0;color:inherit;text-decoration:none}.brand-mark{display:block;flex:none;width:38px;height:38px;border-radius:11px;overflow:hidden;box-shadow:0 4px 12px #8a5a3447}.brand-mark img{display:block;width:100%;height:100%}.brand-text{display:flex;flex-direction:column;line-height:1.15;min-width:0}.brand-text .brand-title,.brand-text strong{font-size:16px;letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0;font-weight:700}.noscript-tip{padding:12px 20px;background:#fbf1e2;color:#7a5a37;border-bottom:1px solid #e7c9a8;font-size:14px;text-align:center}.brand-text small{color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.top-actions{display:flex;align-items:center;gap:4px}.ghost-link{color:var(--ink-2);text-decoration:none;font-size:14px}.ghost-link:hover{color:var(--brand-2)}.top-actions>.ghost-link{padding:6px 11px;border-radius:999px;white-space:nowrap;transition:background-color .15s ease,color .15s ease}.top-actions>.ghost-link:hover{background:#b07a4b1a}.top-actions>.ghost-link.is-current{color:var(--brand-2);font-weight:600;background:var(--brand-soft)}.top-actions .lang-switch{margin-left:8px;flex:none}.lang-switch{display:inline-flex;border:1px solid var(--line-2);border-radius:999px;padding:2px;background:var(--card-2)}.lang-switch button{border:0;background:transparent;color:var(--ink-2);cursor:pointer;font-size:13px;padding:4px 11px;border-radius:999px;font-family:inherit;white-space:nowrap}.lang-switch button[aria-pressed=true]{background:var(--brand);color:#fff}.app{max-width:1360px;margin:0 auto;padding:20px;display:grid;grid-template-columns:minmax(320px,420px) 1fr;gap:20px;align-items:start}.panel{display:flex;flex-direction:column;gap:16px;min-width:0}.panel-right{position:sticky;top:84px}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}.card-title{margin:0 0 12px;font-size:14px;letter-spacing:.3px;color:var(--brand-2);display:flex;align-items:center;gap:8px}.card-title:before{content:"";width:4px;height:15px;border-radius:3px;background:var(--brand)}.dropzone{border:2px dashed var(--line-2);border-radius:var(--radius-sm);padding:13px 12px;text-align:center;cursor:pointer;color:var(--ink-2);background:var(--card-2);transition:border-color .15s,background .15s,transform .05s;outline:none}.dropzone:hover,.dropzone:focus-visible{border-color:var(--brand);background:#f6ecdd}.dropzone.dragover{border-color:var(--brand);background:#f2e6d5;transform:scale(1.005)}.dz-icon{color:var(--brand);display:grid;place-items:center;margin-bottom:2px}.dz-title{margin:2px 0;font-weight:600}.dz-sub{margin:0 0 9px;font-size:12.5px;color:var(--muted)}.opt-row{display:flex;align-items:flex-start;gap:8px;margin-top:12px;font-size:12.5px;color:var(--ink-2);cursor:pointer}.opt-row input{margin-top:2px;accent-color:var(--brand);flex:none}.hint{margin:10px 0 0;font-size:12px;color:var(--muted)}.hint-sm{margin:0 0 12px;font-size:12.5px;color:var(--muted)}.btn{font-family:inherit;font-size:14px;border-radius:10px;padding:9px 16px;cursor:pointer;text-decoration:none;border:1px solid transparent;transition:background .15s,box-shadow .15s,transform .05s,border-color .15s}.btn:active{transform:translateY(1px)}.btn-primary{background:linear-gradient(160deg,#c0895a,#9a663d);color:#fff;box-shadow:0 4px 14px #8a5a3442}.btn-primary:hover{filter:brightness(1.04)}.btn-primary:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}.btn-ghost{background:var(--card-2);color:var(--ink);border-color:var(--line-2)}.btn-ghost:hover{border-color:var(--brand);color:var(--brand-2);background:#f6ecdd}.btn-block{width:100%;margin-top:4px}.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.preset-grid{display:grid;grid-template-columns:1fr;gap:8px}.preset-chip{display:flex;align-items:center;gap:10px;text-align:left;cursor:pointer;background:var(--card-2);border:1px solid var(--line);border-radius:12px;padding:10px;font-family:inherit;transition:border-color .15s,background .15s,box-shadow .15s}.preset-chip:hover{border-color:var(--brand)}.preset-chip.is-active{border-color:var(--brand);background:#f6ead9;box-shadow:0 0 0 2px #b07a4b2e}.pc-ico{width:30px;height:30px;border-radius:8px;flex:none;background:conic-gradient(from 20deg,#d9b98c,#a9784c,#6f4a2c,#d9b98c)}.preset-chip[data-preset=bw] .pc-ico{background:linear-gradient(140deg,#eee,#555)}.preset-chip[data-preset=film] .pc-ico{background:linear-gradient(140deg,#c98b6a,#6f3f30)}.preset-chip[data-preset=faded] .pc-ico{background:linear-gradient(140deg,#efe6d8,#cbb9a2)}.preset-chip[data-preset=paper] .pc-ico{background:radial-gradient(#333 1px,transparent 1.6px) 0 0/5px 5px,#efe6cf}.preset-chip[data-preset=damaged] .pc-ico{background:linear-gradient(140deg,#b98a5e,#4a2f1c)}.preset-chip[data-preset=custom] .pc-ico{background:repeating-linear-gradient(45deg,#d9b98c,#d9b98c 4px,#efe0cc 4px 8px)}.pc-text{display:flex;flex-direction:column;min-width:0}.pc-name{font-size:13.5px;font-weight:600}.pc-desc{font-size:11.5px;color:var(--muted);line-height:1.35}.search-input{width:100%;box-sizing:border-box;margin:0 0 10px;font-family:inherit;font-size:13px;padding:7px 11px;border-radius:9px;border:1px solid var(--line-2);background:var(--card-2);color:var(--ink)}.search-input::placeholder{color:var(--muted)}.search-input:focus{outline:none;border-color:var(--brand);background:var(--card)}.no-match{margin:8px 0 0;text-align:center}.preset-tools{display:flex;gap:8px;margin:-2px 0 10px}.fav-filter{display:inline-flex;align-items:center;gap:5px}.fav-filter[aria-pressed=true]{background:var(--brand);border-color:var(--brand);color:#fff}.fav-filter b{font-variant-numeric:tabular-nums}.preset-chip{position:relative}.pc-fav{position:absolute;top:4px;right:4px;width:22px;height:22px;padding:0;border:0;border-radius:6px;background:transparent;color:var(--muted);font-size:14px;line-height:1;cursor:pointer;opacity:0;transition:opacity .15s,color .15s}.preset-chip:hover .pc-fav,.preset-chip.is-fav .pc-fav,.pc-fav:focus-visible{opacity:1}.pc-fav[aria-pressed=true]{color:#e0a13a}.preset-chip.is-fav{border-color:#e0a13a}.preset-grid.thumb-mode{grid-template-columns:repeat(auto-fill,minmax(112px,1fr));gap:10px}.preset-grid.thumb-mode .preset-chip{flex-direction:column;align-items:stretch;gap:6px;padding:7px;text-align:center}.preset-grid.thumb-mode .pc-ico{width:100%;height:84px;border-radius:6px;overflow:hidden;position:relative;background:linear-gradient(140deg,#c89b6f,#7c4a26)}.preset-grid.thumb-mode .pc-ico.shimmer{background-image:linear-gradient(100deg,#c89b6f 30%,#e6c594,#c89b6f 70%);background-size:220% 100%;animation:thumb-shimmer 1.4s ease-in-out infinite}@keyframes thumb-shimmer{0%{background-position:120% 0}to{background-position:-20% 0}}@media (prefers-reduced-motion: reduce){.preset-grid.thumb-mode .pc-ico,.preset-grid.thumb-mode .pc-ico.shimmer{animation:none}}.preset-grid.thumb-mode .pc-thumb{display:block;width:100%;height:100%}.preset-grid:not(.thumb-mode) .pc-thumb{display:none!important}.preset-grid.thumb-mode .pc-desc{display:none}.preset-grid.thumb-mode .pc-name{font-size:12px;line-height:1.25;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.preset-grid.thumb-mode .pc-fav{top:2px;right:2px;width:20px;height:20px;background:#ffffffd1;opacity:1}.pc-ico .pc-ph{position:absolute;inset:0;display:grid;place-items:center;font-size:10px;color:#bda98f}.sliders{display:flex;flex-direction:column;gap:12px}.slider-group{display:flex;flex-direction:column;gap:10px}.slider-row{display:flex;flex-direction:column;gap:5px}.slider-head{display:flex;justify-content:space-between;align-items:baseline;font-size:13px;color:var(--ink-2)}.slider-val{font-variant-numeric:tabular-nums;color:var(--brand-2);font-weight:600;min-width:26px;text-align:right}input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:4px;border-radius:4px;background:var(--line-2);outline:none}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--brand);cursor:pointer;border:3px solid #fff;box-shadow:0 1px 4px #78502866}input[type=range]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--brand);cursor:pointer;border:3px solid #fff}.switches{margin-top:14px;display:flex;flex-direction:column;gap:10px}.switch-row{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--ink-2);cursor:pointer}.switch-row input{width:17px;height:17px;accent-color:var(--brand)}.col-right .sliders .print-extras{margin-top:18px;padding:0 8px}.extras-h3{margin:0 0 10px;padding-bottom:6px;font-size:13.5px;color:var(--ink);font-weight:600;border-bottom:1px solid var(--line)}.col-right .sliders .print-extras .extras-block{padding-bottom:12px;border-bottom:1px dashed var(--line);margin-bottom:12px}.col-right .sliders .print-extras .extras-block:last-child{border-bottom:0;padding-bottom:4px;margin-bottom:0}.extras-block{padding-bottom:12px;border-bottom:1px solid var(--line)}.extras-block:last-child{border-bottom:0;padding-bottom:0}.extras-h{margin:0 0 6px;font-size:13px;color:var(--ink);font-weight:600}.extras-row{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin:6px 0;flex-wrap:wrap}.extras-row>span:first-child{flex:0 0 64px;color:var(--ink-2)}.extras-row>label:first-child{flex:0 0 64px;color:var(--ink-2);font-weight:500;cursor:pointer}.extras-row.extras-range>label:first-child{flex:0 0 80px}.extras-row input[type=range]{flex:1;min-width:0}.extras-row>.slider-val{flex:0 0 28px;text-align:right;font-variant-numeric:tabular-nums;color:var(--brand-2);font-weight:600}.extras-row input[type=text],.extras-row input[type=date],.extras-row select.extras-input{flex:1;min-width:0;padding:5px 9px;border:1px solid var(--line-2);border-radius:6px;font:inherit;font-size:13px;background:var(--card);color:var(--ink)}.extras-row input[type=checkbox]{width:16px;height:16px;accent-color:var(--brand);flex:0 0 16px}.extras-row.extras-row-empty{visibility:hidden;height:0;margin:0}.extras-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:8px 14px;margin:8px 0 2px}.extras-block .slider-row{margin-top:4px}.preview-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.view-toggle{display:inline-flex;background:var(--card-2);border:1px solid var(--line-2);border-radius:999px;padding:3px}.view-toggle button{border:0;background:transparent;padding:6px 14px;border-radius:999px;cursor:pointer;font-size:13px;color:var(--ink-2);font-family:inherit}.view-toggle button.is-active{background:var(--brand);color:#fff}.preview-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.preview-actions .edit-actions{display:inline-flex;gap:6px}.preview-actions .pa-sep{width:1px;height:18px;background:var(--line-2);margin:0 2px}.chip-btn{border:1px solid var(--line-2);background:var(--card);color:var(--ink-2);padding:6px 13px;border-radius:999px;font-size:13px;cursor:pointer;font-family:inherit;user-select:none;-webkit-user-select:none;touch-action:none}.chip-btn:hover{border-color:var(--brand);color:var(--brand-2)}.chip-btn:active{background:#f2e6d5}.stage{background:linear-gradient(180deg,#2a2018,#1d1610);border:1px solid #241a12;border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);min-height:320px;display:flex}.canvas-wrap{position:relative;flex:1;display:flex;gap:14px}.cv-cell{position:relative;flex:1 1 0;min-width:0;display:none;align-items:center;justify-content:center}.stage.has-image .cv-cell{display:flex}.canvas-wrap canvas{display:block;max-width:100%;max-height:68vh;width:auto;height:auto;border-radius:8px;background:#14100b;box-shadow:0 4px 18px #00000059}.corner-tag{position:absolute;top:10px;left:10px;font-size:11px;color:#f0e6d6;background:#00000073;padding:3px 9px;border-radius:999px;letter-spacing:.3px;pointer-events:none}.stage.view-single .cv-cell:first-child{display:none}.stage.view-single.has-image .cv-cell:last-child{display:flex}.ab-layer{display:none;flex:1 1 0;min-width:0;align-items:center;justify-content:center}.stage.view-compare .ab-layer{display:flex}.stage.view-compare .cv-cell{display:none!important}.ab-inner{position:relative;display:inline-block;line-height:0;touch-action:none;user-select:none;-webkit-user-select:none}.ab-inner canvas{display:block;max-width:100%;max-height:68vh;width:auto;height:auto;border-radius:8px;background:#14100b;box-shadow:0 4px 18px #00000059}#abOver{position:absolute;left:0;top:0;width:100%;height:100%;box-shadow:none}.ab-divider{position:absolute;top:0;bottom:0;left:50%;width:2px;background:#ffffffe0;transform:translate(-1px);box-shadow:0 0 8px #0000008c;cursor:ew-resize;z-index:3}.ab-knob{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:34px;height:34px;border-radius:50%;background:#fffffff2;color:var(--brand-2);display:grid;place-items:center;box-shadow:0 2px 10px #0006}.ab-divider:focus-visible{outline:2px solid var(--brand);outline-offset:3px}.ab-tag-l,.ab-tag-r{z-index:2}.empty-state{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;color:#bda98f;text-align:center;padding:0 12px}.stage.has-image .empty-state{display:none}.es-icon{font-size:40px;filter:grayscale(.3);opacity:.8}.es-try-btn{margin-top:14px;padding:9px 18px;font:inherit;font-size:13px;background:linear-gradient(180deg,#c0895a,#8a5a34);color:#fff;border:1px solid #6f4528;border-radius:9px;cursor:pointer;box-shadow:0 4px 14px #8a5a3452;transition:transform .12s,box-shadow .12s}.es-try-btn:hover{transform:translateY(-1px);box-shadow:0 6px 18px #8a5a3473}.es-try-btn:active{transform:translateY(0)}.es-try-btn:focus-visible{outline:2px solid #d8b265;outline-offset:2px}.export-row{display:flex;gap:14px;flex-wrap:wrap}.field{display:flex;flex-direction:column;gap:6px;flex:1 1 130px;min-width:120px}.field label{font-size:12.5px;color:var(--ink-2)}.field label b{color:var(--brand-2);font-variant-numeric:tabular-nums}.select{font-family:inherit;font-size:13.5px;padding:8px 10px;border-radius:9px;border:1px solid var(--line-2);background:var(--card);color:var(--ink)}.field-quality{max-width:220px}.adj-tabs{display:flex;flex-wrap:wrap;gap:6px;margin:2px 0 8px}.adj-tabs::-webkit-scrollbar{display:none}.adj-tab{flex:0 0 auto;position:relative;border:1px solid transparent;background:transparent;color:var(--ink-2);font-family:inherit;font-size:13px;font-weight:600;padding:6px 11px;border-radius:999px;cursor:pointer;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;user-select:none;transition:background .15s,color .15s,border-color .15s}.adj-tab:hover{background:var(--brand-soft);color:var(--brand-2)}.adj-tab.is-active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 1px 4px #b07a4b38}.adj-tab:not(.is-active){opacity:.82}.adj-tab-badge{min-width:18px;height:18px;padding:0 5px;border-radius:999px;background:var(--brand-2);color:#fff;font-size:11px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;line-height:1}.adj-tab.is-active .adj-tab-badge{background:#ffffff42;color:#fff}.sliders{border-top:1px solid var(--line);padding-top:8px}.fold-bar{display:flex;gap:8px;margin-bottom:12px}.field-custom-w{max-width:190px}.field-custom-w input{font-family:inherit;font-size:13.5px;padding:8px 10px;border-radius:9px;border:1px solid var(--line-2);background:var(--card);color:var(--ink);width:100%;box-sizing:border-box}.disclaimer{border:1px solid #e7c9a8;background:#fbf1e2;border-radius:var(--radius);padding:13px 15px;font-size:12.8px;color:#7a5a37;line-height:1.6}.disclaimer strong{color:#9a5a24}.content{max-width:1280px;margin:34px auto 0;padding:0 24px}.content-block{margin-bottom:30px}.content h2{font-size:21px;margin:0 0 12px;color:var(--ink);letter-spacing:.2px}.content h2:after{content:"";display:block;width:46px;height:3px;border-radius:3px;margin-top:9px;background:var(--brand)}.content p{margin:0 0 12px;color:var(--ink-2)}.feature-list,.steps{margin:0;padding-left:20px;color:var(--ink-2)}.feature-list li,.steps li{margin:8px 0}.feature-list b{color:var(--ink)}.faq{border:1px solid var(--line);border-radius:var(--radius);background:var(--card);overflow:hidden}.faq details{border-top:1px solid var(--line)}.faq details:first-child{border-top:0}.faq summary{cursor:pointer;padding:14px 16px;font-weight:600;color:var(--ink);list-style:none;position:relative}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";position:absolute;right:16px;color:var(--brand);font-size:20px;line-height:1;transition:transform .2s}.faq details[open] summary:after{content:"−"}.faq .faq-body{padding:0 16px 14px;color:var(--ink-2);font-size:14px}.legal-block{background:#fbf1e2;border:1px solid #e7c9a8;border-radius:var(--radius);padding:18px}.legal-block p{color:#7a5a37}.foot{max-width:940px;margin:30px auto 46px;padding:20px 20px 0;border-top:1px solid var(--line);color:var(--muted);font-size:13px;padding-bottom:env(safe-area-inset-bottom);display:flex;align-items:center;justify-content:space-between;gap:12px 24px;flex-wrap:wrap}body.home-page .foot{max-width:1280px}.foot-copy{margin:0}.foot-links{display:flex;align-items:center;gap:22px;margin:0}.foot-links a{color:var(--muted);text-decoration:none;white-space:nowrap}.foot-links a:hover{color:var(--brand-2)}@media (max-width: 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