:root{--ink:#252d25;--muted:#7a8077;--line:#e3e5dc;--paper:#f5f6f0;--accent:#62744f}*{box-sizing:border-box}body{background:var(--paper);color:var(--ink);margin:0;font-family:Arial,Helvetica,sans-serif;font-size:14px}button,input,textarea,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,summary:focus-visible{outline-offset:3px;outline:3px solid #9fad91}main{max-width:1240px;margin:auto;padding:0 54px}header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;height:91px;display:flex}.brand{letter-spacing:-1px;align-items:center;gap:7px;font-size:24px;display:flex}.brandmark{background:var(--ink);color:#eef0e6;border-radius:10px;place-items:center;width:39px;height:39px;margin-right:6px;display:grid}.brandarrow{color:#98a18e;margin:0 3px}.header-right{letter-spacing:1.7px;color:#747e70;align-items:center;gap:8px;font-size:10px;display:flex}.status-dot{background:#7b8d68;border-radius:50%;flex-shrink:0;width:6px;height:6px;display:inline-block}.version{border:1px solid var(--line);letter-spacing:0;border-radius:5px;margin-left:15px;padding:5px 8px;font-size:10px}.intro{justify-content:space-between;align-items:center;gap:35px;padding:49px 0 37px;display:flex}.eyebrow{letter-spacing:2px;color:#858b7a;font-size:10px;font-weight:600}h1{letter-spacing:-2.8px;margin:18px 0 17px;font-size:54px;font-weight:500;line-height:1.08}h1 span{color:#879176}.intro p{color:#747c70;margin:0;font-size:14px;line-height:1.7}.hero-art{flex-shrink:0;width:330px;margin:5px 24px 0 0;position:relative;transform:rotate(-6deg)}.hero-art svg{border:1px solid #dedfd4;border-radius:3px;width:100%}.hero-art>span{text-align:right;letter-spacing:1.5px;color:#7e8676;margin-top:10px;font-size:9px;display:block}.workspace{grid-template-columns:.9fr 1.22fr;align-items:start;gap:24px;display:grid}.input-panel,.result-panel{border:1px solid var(--line);background:#fff;border-radius:15px;padding:25px}.section-title{align-items:center;gap:11px;margin-bottom:23px;display:flex}.step{color:#8a9281;background:#f2f3ed;border-radius:7px;place-items:center;width:26px;height:26px;font-family:monospace;font-size:10px;display:grid}h2{letter-spacing:-.3px;margin:0;font-size:16px;font-weight:600}.unit{letter-spacing:1.5px;color:#8f9589;margin-left:auto;font-size:9px}.tabs{background:#f3f4ef;border-radius:8px;margin-bottom:24px;padding:4px;display:flex}.tabs button{color:#7d8675;background:0 0;border:0;border-radius:6px;flex:1;justify-content:center;align-items:center;gap:7px;padding:10px 5px;font-size:12px;display:flex}.tabs .active{color:#343d2d;background:#fff;box-shadow:0 1px 5px #2531210c}label{color:#68715f;letter-spacing:.2px;margin:0 0 17px;font-size:11px;font-weight:600;display:block}input,select{color:#343c2e;background:#fafbf8;border:1px solid #e2e6da;border-radius:7px;outline:none;width:100%;height:45px;margin-top:8px;padding:0 13px;font-size:14px;display:block}input:focus,textarea:focus,select:focus{border-color:#94a383;box-shadow:0 0 0 3px #94a38318}.field-row{grid-template-columns:1fr 1fr;gap:15px;display:grid}.support{color:#7e8975;align-items:center;gap:7px;margin:2px 0 16px;font-size:11px;display:flex}.primary{border:1px solid var(--ink);background:var(--ink);color:#f9faf7;border-radius:7px;justify-content:center;align-items:center;gap:10px;width:100%;height:46px;font-size:12px;font-weight:600;transition:background .2s;display:flex}.primary:hover{background:#44543b}.helper{color:#91978b;margin:12px 0 0;font-size:10px;line-height:1.6}.settings{border-top:1px solid var(--line);margin-top:23px;padding-top:17px}.settings summary{color:#7d8774;cursor:pointer;align-items:center;gap:8px;font-size:11px;list-style:none;display:flex}.settings summary svg:last-child{margin-left:auto}.settings[open] summary{margin-bottom:20px}.settings select{font-size:12px}.settings label{margin-bottom:12px}.result-panel{min-height:564px}.empty-result{text-align:center;background:linear-gradient(135deg,#f9faf6,#fff);border:1px dashed #e6e9e0;border-radius:9px;flex-direction:column;justify-content:center;align-items:center;min-height:452px;padding:22px;display:flex}.empty-icon{color:#9da88f;background:#f2f5ed;border:1px solid #e3e7db;border-radius:19px;place-items:center;width:68px;height:68px;margin-bottom:23px;display:grid;transform:rotate(-5deg)}.empty-result h3{letter-spacing:-.5px;margin:0 0 12px;font-size:17px;font-weight:500}.empty-result p{color:#8a9282;margin:0;font-size:12px;line-height:1.9}.sample{color:#5f7050;background:#fff;border:1px solid #e1e6d7;border-radius:6px;align-items:center;gap:10px;margin-top:35px;padding:11px 13px;font-size:11px;display:flex}.sample-date{color:#a1a696;margin-top:10px;font-size:9px}.result-meta{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.result-meta h3{letter-spacing:-.5px;margin:0 0 6px;font-size:19px}.result-meta p{color:#8a9480;margin:0;font-size:10px}.success{color:#5d7546;background:#f0f5e9;border-radius:5px;align-items:center;gap:5px;padding:7px 10px;font-size:10px;display:flex}.plot{background:#f8faf5;border:1px solid #e6e9e0;border-radius:8px;overflow:hidden}.plot svg{width:100%;max-height:210px;display:block}.plot-stats{background:#fcfdfb;border-top:1px solid #e6e9e0;gap:30px;padding:12px 16px;display:flex}.plot-stats span{letter-spacing:1px;color:#939b89;font-size:8px}.plot-stats b{color:#59674d;letter-spacing:0;margin-top:5px;font-size:13px;font-weight:500;display:block}.code-tabs{align-items:center;gap:15px;margin:18px 0 10px;display:flex}.code-tabs button{color:#8e9587;background:0 0;border:0;padding:0 0 5px;font-size:10px}.code-tabs button.selected{color:#49593c;border-bottom:1px solid #49593c}.code-tabs>span{color:#a0a88f;margin-left:auto;font:10px monospace}.code{color:#d0ddbc;resize:vertical;white-space:pre;background:#252e25;border:0;border-radius:8px;outline:none;width:100%;height:190px;padding:17px;font:11px/1.75 ui-monospace,SFMono-Regular,Consolas,monospace;display:block}.output-actions{gap:10px;margin-top:13px;display:flex}.output-actions .primary{flex:1;height:41px}.secondary{color:#66745a;background:#fff;border:1px solid #dfe5d7;border-radius:7px;justify-content:center;align-items:center;gap:7px;padding:0 12px;font-size:10px;display:flex}.source{color:#a0a895;flex-wrap:wrap;justify-content:space-between;gap:8px;margin-top:13px;font-size:9px;display:flex}.source a{color:#7e8e70;align-items:center;gap:5px;display:flex}.notice,.error{border-radius:7px;margin:10px 0 16px;padding:11px 13px;font-size:11px;line-height:1.6}.notice{color:#91805a;background:#f7f4e8;border:1px solid #eee6cf}.error{color:#a45f45;background:#fff4ee;border:1px solid #f2ddcf}.dropzone{color:#859675;background:#f9fbf5;border:1px dashed #cad4be;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:11px;width:100%;min-height:158px;display:flex}.dropzone strong{color:#576b46;font-size:13px}.dropzone span{color:#9ca88f;font-size:10px}.raw-label{margin-top:21px}.raw-label textarea{resize:vertical;color:#637151;background:#fafbf8;border:1px solid #e1e5d9;border-radius:7px;outline:none;width:100%;height:105px;margin-top:8px;padding:11px;font:11px/1.7 monospace;display:block}.guide{border-top:1px solid var(--line);margin:35px 0 0;padding-top:28px}.guide-items{grid-template-columns:repeat(3,1fr);gap:30px;margin:22px 0;display:grid}.guide-items>div{gap:13px;display:flex}.guide-items>div>span{color:#7e8b6c;background:#e9ecdf;border-radius:50%;flex-shrink:0;place-items:center;width:26px;height:26px;font-size:10px;display:grid}.guide-items p{color:#929a87;margin:0;font-size:11px;line-height:1.6}.guide-items strong{color:#59664d;margin-bottom:5px;font-size:12px;font-weight:500;display:block}.guide-note{color:#9ba390;margin-bottom:30px;font-size:10px;line-height:1.7}footer{border-top:1px solid var(--line);color:#939c88;justify-content:space-between;padding:23px 0 27px;font-size:10px;display:flex}footer span:first-child{color:#65735a;font-weight:600}.spin{animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=900px){main{padding:0 28px}.intro{padding-top:35px}.hero-art{width:250px;margin-right:0}h1{font-size:46px}.workspace{grid-template-columns:1fr 1.15fr;gap:15px}.input-panel,.result-panel{padding:20px}.tabs button{font-size:10px}.source{display:block}.source>span{margin-top:7px;display:block}}@media (width<=680px){main{padding:0 18px}header{height:73px}.header-right{letter-spacing:1px;font-size:8px}.version{display:none}.brand{font-size:21px}.brandmark{width:34px;height:34px}.intro{padding:31px 0 25px;display:block}.hero-art{display:none}h1{letter-spacing:-2px;font-size:45px}.intro p{font-size:12px}.desktop{display:none}.workspace{grid-template-columns:1fr;gap:18px}.input-panel,.result-panel{padding:21px}.result-panel{min-height:420px}.empty-result{min-height:330px}.guide-items{grid-template-columns:1fr;gap:18px}.guide{margin-top:25px}.output-actions{flex-wrap:wrap}.source{font-size:9px}.tabs button,.code{font-size:11px}footer span:last-child{font-size:9px}}