:root{color-scheme:light;--bg:#f6f7fb;--paper:#fff;--ink:#252841;--muted:#73778b;--line:#e8eaf2;--accent:#bf4b00;--accent-dark:#9e3e00;--tint:#fff3e9;--good:#26725a;--warn:#9b5d1b;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);line-height:1.6}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #ecaa76;outline-offset:4px}button{touch-action:manipulation}svg{fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;width:24px;height:24px;flex-shrink:0}button svg{pointer-events:none}.shell{width:min(1080px,calc(100% - 64px));margin:auto}.header{height:102px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}.brand-mark{display:block;width:44px;height:44px;object-fit:contain;flex-shrink:0}.brand b{display:block;font-size:18px;letter-spacing:2px;line-height:1.5}.brand small{display:block;font-size:10px;letter-spacing:2.5px;font-weight:650}.header-note{color:var(--muted);font-size:13px;letter-spacing:1px}.intro{display:flex;justify-content:space-between;align-items:center;padding:40px 0 30px;gap:20px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:700;color:var(--accent);margin:0 0 8px}h1{font-size:34px;font-weight:650;line-height:1.3;margin:0;letter-spacing:-1px}.title-dot{color:var(--accent);margin-left:2px}.intro-copy{font-size:15px;color:var(--muted);margin:12px 0 0}.privacy{white-space:nowrap;display:flex;align-items:center;gap:7px;font-size:13px;color:#447364;background:#ebf3ef;border:1px solid #dceae3;border-radius:100px;padding:8px 12px}.privacy svg{width:16px;height:16px}.modes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:26px}.mode{display:flex;align-items:center;gap:14px;text-align:left;position:relative;min-width:0;padding:18px;border-radius:14px;border:1px solid var(--line);background:white;color:var(--ink);transition:background .18s,border-color .18s}.mode:hover{border-color:#e9ba97}.mode.active{background:var(--tint);border-color:#eba875}.mode-icon{background:var(--bg);border-radius:11px;width:42px;height:42px;display:grid;place-items:center;flex-shrink:0;color:#73778f}.mode.active .mode-icon{background:#ffe4d1;color:var(--accent)}.mode strong{display:block;font-size:16px;font-weight:600}.mode small{display:block;font-size:12px;color:var(--muted);margin-top:2px}.mode-check{display:none;margin-left:auto;background:var(--accent);color:#fff;border-radius:50%;width:18px;height:18px;text-align:center;line-height:18px;font-size:12px;flex-shrink:0}.mode.active .mode-check{display:block}.workspace{display:grid;grid-template-columns:380px minmax(0,1fr);gap:22px;align-items:start}.panel{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:0 4px 20px #25284102}.section-title{display:flex;align-items:center;gap:10px;margin-bottom:24px}.step{font-size:11px;color:var(--muted);border:1px solid var(--line);width:25px;height:25px;border-radius:7px;display:grid;place-items:center;letter-spacing:.3px}h2{font-size:17px;font-weight:650;margin:0}.section-title>.text-button{margin-left:auto}fieldset{border:0;padding:0;margin:0;min-width:0}.field-heading,label{font-size:14px;font-weight:550}.field-heading{margin:0 0 10px}.presets{display:grid;grid-template-columns:1fr 1fr;gap:9px}.preset{position:relative;text-align:left;border:1px solid var(--line);border-radius:10px;background:#fff;padding:12px;color:var(--ink);min-width:0}.preset[aria-pressed="true"]{border-color:var(--accent);background:#fff8f2}.preset[aria-pressed="true"]::after{content:'✓';position:absolute;right:8px;top:6px;color:var(--accent);font-size:12px}.preset strong{display:block;font-size:14px;font-weight:550}.preset small{display:block;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;margin-top:3px}.small-note{font-size:12px;line-height:1.8;color:var(--muted);margin:12px 0 0}.divider{height:1px;background:var(--line);margin:22px 0}.dimensions{display:grid;grid-template-columns:minmax(0,1fr) 18px minmax(0,1fr);gap:9px;margin-bottom:18px}.dimensions label>span,.size-field>span{float:right;font-size:12px;font-weight:400;color:var(--muted)}.times{align-self:end;margin-bottom:13px;text-align:center;color:#a8aabb;font-size:17px}input[type=number]{display:block;appearance:textfield;width:100%;height:46px;margin-top:8px;padding:9px 13px;border:1px solid #e0e3ed;border-radius:9px;color:var(--ink);background:#fff;font-size:16px;font-variant-numeric:tabular-nums}input::-webkit-inner-spin-button{appearance:none}input:disabled{color:#74798f;background:#f6f7fa}input:invalid{border-color:#db9b7c}.size-field{display:block;margin-bottom:20px}.format-options{display:grid;grid-template-columns:1fr 1fr;gap:9px}.format-options label{cursor:pointer;position:relative}.format-options input{position:absolute;opacity:0}.format-options label>span{display:block;padding:10px 11px;border:1px solid var(--line);border-radius:9px;font-size:14px}.format-options small{display:block;font-size:11px;color:var(--muted);font-weight:400}.format-options input:checked+span{color:var(--accent);border-color:#e9a876;background:#fff8f2}.format-options input:focus-visible+span{outline:3px solid #ecaa76;outline-offset:3px}.requirement{margin-top:23px;padding:14px;border-radius:10px;background:#f7f8fc}.requirement>span{display:block;color:var(--muted);font-size:12px}.requirement strong{display:block;margin-top:4px;font-size:14px;font-weight:600;word-break:break-word}.upload-zone{border:1.5px dashed #d4d8e8;background:#fafbfe;min-height:320px;width:100%;border-radius:13px;display:flex;align-items:center;justify-content:center;flex-direction:column;color:var(--ink);padding:28px 16px}.upload-zone:hover,.upload-zone.dragover{border-color:var(--accent);background:#fff8f2}.upload-icon{display:grid;place-items:center;width:68px;height:68px;border-radius:20px;background:#ffecdc;color:var(--accent);margin-bottom:20px}.upload-icon svg{width:38px;height:38px;stroke-width:1.4}.upload-zone 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0;font-size:13px}.crop-stage,.result-image-wrap{display:flex;align-items:center;justify-content:center;overflow:hidden;height:310px;border-radius:12px;padding:16px;background-color:#f1f3f8;background-image:linear-gradient(45deg,#e7eaf1 25%,transparent 25%),linear-gradient(-45deg,#e7eaf1 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e7eaf1 75%),linear-gradient(-45deg,transparent 75%,#e7eaf1 75%);background-size:16px 16px;background-position:0 0,0 8px,8px -8px,-8px 0}.crop-stage canvas{display:block;max-width:100%;max-height:100%;width:auto;height:auto;box-shadow:0 2px 12px #2223;touch-action:none;cursor:move}.photo-meta{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:8px;font-size:12px;color:var(--muted)}.crop-hint{font-size:12px;color:var(--muted);margin:6px 0 12px}.slider-label{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px;margin:8px 0}.slider-label 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img{max-height:100%;max-width:100%;width:auto;height:auto;box-shadow:0 2px 12px #2223;-webkit-touch-callout:default}.result-metrics{display:grid;grid-template-columns:1.3fr .65fr 1fr;text-align:center;margin:22px 0 0}.result-metrics>div+div{border-left:1px solid var(--line)}.result-metrics dt{font-size:12px;color:var(--muted)}.result-metrics dd{margin:4px 0 0;font-size:16px;font-weight:600;font-variant-numeric:tabular-nums}.result-limit{text-align:center;font-size:12px;color:var(--good);margin:9px 0 0}#result[data-over-limit="true"] .result-limit{color:var(--warn)}.save-help{font-size:12px;color:var(--muted);margin:13px 0 0;text-align:center}.edit-again{display:block;margin:13px auto 0;font-size:14px}.bottom-note{display:flex;align-items:center;justify-content:center;gap:11px;margin:30px auto;color:#868b9e}.bottom-note svg{width:24px;height:24px}.bottom-note p{font-size:13px;margin:0}.bottom-note p span{font-size:12px;display:block;color:#999dad}footer{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding:23px 0 28px;color:#9397aa;font-size:11px;letter-spacing:.4px}footer i{margin:0 7px;font-style:normal;color:#bdc0d0}[hidden]{display:none!important}.noscript{color:#a44;padding:30px;text-align:center}@media(min-width:1400px){.intro{padding-top:48px;padding-bottom:34px}}@media(max-width:850px){.shell{width:calc(100% - 40px)}.workspace{grid-template-columns:320px minmax(0,1fr);gap:16px}.panel{padding:20px}.mode{padding:14px;gap:10px}.mode-icon{width:34px;height:36px}.mode small{font-size:11px}.mode-check{display:none!important}.privacy{font-size:12px}.intro{gap:15px}h1{font-size:30px}.result-metrics dd{font-size:14px}.upload-zone{min-height:320px}}@media(max-width:680px){.shell{width:calc(100% - 32px)}.header{height:78px}.header-note{font-size:11px;letter-spacing:0}.brand-mark{width:38px;height:38px}.brand b{font-size:16px}.brand small{font-size:9px;letter-spacing:2px}.intro{padding:27px 0 22px;display:block}.eyebrow{font-size:10px}h1{font-size:29px;letter-spacing:0}.intro-copy{font-size:14px;margin-top:10px}.privacy{display:inline-flex;margin-top:17px;padding:5px 9px;font-size:12px}.modes{gap:8px;margin-bottom:16px}.mode{display:block;padding:13px 6px;text-align:center;border-radius:12px}.mode-icon{width:32px;height:32px;border-radius:8px;margin:0 auto 7px}.mode-icon svg{width:21px;height:21px}.mode strong{font-size:14px}.mode small{display:none}.workspace{grid-template-columns:1fr;gap:16px}.panel{border-radius:15px;padding:20px}.section-title{margin-bottom:20px}.presets{grid-template-columns:1fr 1fr}.preset{padding:10px 12px}.divider{margin:18px 0}.dimensions{margin-bottom:15px}.requirement{margin-top:20px}.upload-zone{min-height:270px}.photo-panel{scroll-margin-top:16px}.crop-stage{height:320px}.result-image-wrap{height:300px}.bottom-note{justify-content:flex-start;margin:25px 8px;align-items:flex-start}.bottom-note p{font-size:12px}.bottom-note p span{font-size:11px}footer{font-size:10px;padding:18px 0 24px}footer>span:last-child{display:none}.result-metrics dd{font-size:16px}.primary{min-height:52px}.text-button{min-height:32px}.format-options small{font-size:12px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

a.primary{text-decoration:none;cursor:pointer}
.upload-zone,.replace-control{position:relative;cursor:pointer}
.photo-picker-input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer;z-index:2}
.upload-zone:focus-within,.replace-control:focus-within{outline:3px solid #ecaa76;outline-offset:4px}
.replace-control{display:inline-flex;align-items:center;white-space:nowrap}
.photo-picker-input:disabled{cursor:not-allowed}