:root{color-scheme:light;--ink:#182c2b;--muted:#5e706d;--line:#d8dfd7;--accent:#c7ee75;--paper:#f4f5ef}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 'PingFang SC','Microsoft YaHei',sans-serif}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer;border:0;border-radius:8px;background:var(--ink);color:white;min-height:46px;padding:10px 22px;font-weight:600}button:disabled{opacity:.45;cursor:not-allowed}button:hover:not(:disabled){filter:brightness(1.18)}:focus-visible{outline:3px solid #508313;outline-offset:4px}a{color:inherit}header{max-width:1240px;margin:auto;padding:32px 48px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font:bold 32px Georgia,serif;text-decoration:none;letter-spacing:-2px}.brand span{color:#58851c}.brand small{font:12px monospace;letter-spacing:3px;margin-left:12px}.cloud{font-size:13px;color:var(--muted)}main{max-width:1240px;padding:80px 48px 48px;margin:auto;display:grid;grid-template-columns:.9fr 1.1fr;gap:56px}.eyebrow{font:11px/1.6 monospace;letter-spacing:2px;color:var(--muted)}h1{font-size:clamp(48px,5vw,76px);line-height:1.2;letter-spacing:-3px;margin:24px 0}h1 span{color:#659426}.intro p{font-size:18px;color:var(--muted);line-height:1.9}.facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px}.facts span{font-size:12px;border:1px solid #bac9b8;border-radius:30px;padding:5px 12px}.panel{border:1px solid var(--line);background:white;border-radius:16px;padding:30px;align-self:start;box-shadow:0 10px 45px #203d2a06}.panel-top{display:flex;justify-content:space-between;align-items:center;font-size:12px;letter-spacing:1px;color:var(--muted);margin-bottom:12px}.text-button{background:transparent;color:var(--muted);padding:4px 8px;min-height:44px;font-size:13px}.drop{display:flex;flex-direction:column;align-items:center;text-align:center;justify-content:center;gap:10px;background:#f6f8f1;border:1px dashed #9eaf98;border-radius:10px;padding:28px 16px;min-height:215px;cursor:pointer;position:relative;overflow:hidden}.drop.drag{background:#e8f4d4;border-color:#59872a}.drop input{position:absolute;inset:0;opacity:0;width:100%;height:100%;cursor:pointer}.drop:focus-within{outline:3px solid #508313;outline-offset:3px}.drop strong{max-width:100%;overflow-wrap:anywhere}.drop>span:last-of-type{font-size:13px;color:var(--muted)}.upload-icon{display:grid;place-items:center;background:var(--accent);border-radius:50%;width:50px;height:50px;font:30px monospace}.options{display:flex;justify-content:space-between;align-items:center;margin:24px 0;font-size:14px}select{padding:8px 12px;background:white;border:1px solid var(--line);border-radius:6px;min-height:44px;color:var(--ink)}.actions{display:flex;gap:12px;flex-wrap:wrap}.actions>button:first-child{background:var(--accent);color:var(--ink);flex:1}.actions>button:first-child span{margin-left:15px}.secondary{background:#eef0eb;color:var(--ink)}.footnote,.muted{font-size:12px;color:var(--muted)}.footnote{border-top:1px solid var(--line);padding-top:20px;margin-top:24px}label{font-size:14px}input:not([type=file]){border:1px solid var(--line);padding:12px;min-width:0;border-radius:7px;background:white;color:var(--ink)}.login-row,.copy-row{display:flex;gap:8px;margin-top:8px}.login-row input,.copy-row input{flex:1;width:100%}.copy-row input{font-size:12px}.progress-row{display:flex;justify-content:space-between;font-size:13px}progress{width:100%;height:8px;accent-color:#659426;border:0;margin-top:12px}#progress-area{margin-bottom:20px}#notice{font-size:14px;color:#9d3d22;overflow-wrap:anywhere;margin-bottom:0}#result{border-top:1px solid var(--line);padding-top:24px;margin-top:24px}h2{font-size:20px;letter-spacing:-.4px}.history{grid-column:1/-1;border-top:1px solid var(--line);padding-top:22px}.history-heading{display:flex;align-items:center;justify-content:space-between}.history-heading span{font-size:12px;color:var(--muted)}.record{display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding:16px 0}.record-info{flex:1;min-width:0}.record strong{font-size:14px;display:block;overflow-wrap:anywhere}.record small{color:var(--muted);font-size:12px}.record button{font-size:12px;padding:8px 12px}.record .delete{color:#a93f27}footer{max-width:1144px;padding:28px 0;margin:30px auto 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;font:11px monospace;letter-spacing:1px;color:var(--muted)}[hidden]{display:none!important}@media(max-width:760px){header{padding:24px}.cloud{font-size:11px}main{padding:40px 24px;grid-template-columns:1fr;gap:30px}h1{font-size:52px;margin:18px 0}.intro p br{display:none}.facts{margin-top:20px}.panel{padding:22px}.history-heading{align-items:start;flex-direction:column}.record{flex-wrap:wrap}.record-info{flex-basis:100%}footer{margin:0 24px;padding:24px 0;gap:20px;line-height:1.8}.login-row button,.copy-row button{padding:10px 14px}}@media(prefers-reduced-motion:no-preference){button,.drop{transition:background .15s,filter .15s}}