@charset "UTF-8";
:root{color-scheme:light;--bg:#f3f4ee;--ink:#202b23;--muted:#738078;--line:#dce2d8;--green:#c6f465;--dark:#18251e;--font:Inter,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:14px;-webkit-font-smoothing:antialiased}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,a:focus-visible{outline:3px solid #8fbc46;outline-offset:4px}input:focus-visible{outline:none}.shell{max-width:1120px;margin:auto;padding:0 44px}.header{height:100px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-weight:750;font-size:23px;letter-spacing:-1px}.brand-icon{background:var(--ink);color:var(--green);width:36px;height:36px;display:grid;place-items:center;border-radius:10px;font-size:27px}.brand-en{font-size:13px;letter-spacing:1px;font-weight:500;color:var(--muted);margin-left:8px}.help-button{border:0;background:none;color:#546359;font-size:13px;padding:10px 0 10px 12px}.help-button span{margin-left:8px}.help{margin-top:18px;background:#e8edde;border:1px solid var(--line);border-radius:12px;padding:18px 22px;line-height:1.8}.help p{margin:8px 0 0;color:#526050}.intro{padding:46px 0 30px}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:650;display:flex;align-items:center;gap:8px;margin:0 0 14px;color:#617154}.eyebrow span{height:7px;width:7px;border-radius:50%;background:#779c48}h1{font-size:44px;letter-spacing:-1.7px;line-height:1.25;margin:0 0 15px;font-weight:780}.mobile-break{display:none}.subtitle{color:var(--muted);margin:0;font-size:14px;line-height:1.8}.calculator-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:20px;align-items:stretch}.panel{background:#fff;border:1px solid #e0e5dc;border-radius:19px;padding:27px 30px}.section-title,.result-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}h2{font-size:15px;font-weight:680;margin:0;display:flex;align-items:center;gap:11px}.step{font:11px var(--font);letter-spacing:.7px;color:#92a08d}.text-button{background:none;border:0;color:#7a877c;font-size:12px;padding:7px}.text-button:hover{color:var(--ink)}.label-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}label{font-weight:600;font-size:13px}.segmented{display:flex;border:1px solid #e1e5dc;border-radius:7px;padding:3px;gap:2px}.segmented button{border:0;color:#8a9287;background:none;min-width:43px;height:26px;font-size:11px;border-radius:4px}.segmented .active{background:#263b2c;color:#e1f3c2}.field-wrap{display:flex;align-items:center;background:#f7f8f4;border:1px solid #e3e7df;border-radius:10px;transition:border .15s,box-shadow .15s;min-width:0}.field-wrap:focus-within{border-color:#8daf65;box-shadow:0 0 0 3px #acd57c25}.field-wrap input{border:0;background:none;width:100%;min-width:0;padding:16px;color:var(--ink);font-size:25px;line-height:1.25;font-variant-numeric:tabular-nums;letter-spacing:.3px}input::placeholder{color:#c1c8bc}.field-wrap span{color:#929c8e;font-size:12px;padding-right:16px;white-space:nowrap}.gold-wrap input{font-size:30px;padding:18px 16px}.field-hint{margin:9px 0 24px;font-size:11px;color:#939d8e}.time-label{display:block;margin-bottom:10px}.time-inputs{display:flex;align-items:center;gap:10px}.time-inputs .field-wrap{flex:1}.colon{font-size:24px;color:#acb5a5}.presets{display:flex;align-items:center;gap:7px;margin:11px 0 25px}.presets>span{color:#939d8e;font-size:11px;margin-right:2px}.presets button{border:1px solid #e4e8df;background:#fff;color:#697661;font-size:11px;border-radius:6px;padding:7px 11px;white-space:nowrap}.presets button:hover{background:#edf5e3;border-color:#c0d7a4}.compare-header{border-top:1px solid #edf0e9;padding-top:20px;display:flex;justify-content:space-between;align-items:center}.compare-header label{font-size:12px}.compare-header label span{font-size:10px;font-weight:400;margin-left:6px;color:#9ba395}#compareToggle{appearance:none;width:32px;height:19px;border-radius:20px;background:#d9e0d3;position:relative;cursor:pointer;margin:0;flex-shrink:0}#compareToggle::after{content:"";position:absolute;background:#fff;width:13px;height:13px;border-radius:50%;left:3px;top:3px;transition:transform .15s}#compareToggle:checked{background:#597d3e}#compareToggle:checked::after{transform:translateX(13px)}#compareToggle:focus-visible{outline:3px solid #8fbc46;outline-offset:3px}.small-label{display:block;font-size:11px;color:#7d8976;margin:17px 0 8px}#compareArea input{font-size:21px}.error{font-size:11px;color:#a44a38;min-height:16px;line-height:1.5;margin:13px 0}.primary-button{width:100%;border:0;border-radius:9px;background:#263b2c;color:#f1f8e8;height:49px;display:flex;align-items:center;justify-content:center;gap:7px;font-size:13px;font-weight:600}.primary-button:hover:not(:disabled){background:#38513f}.primary-button>span:first-child{font-size:20px;font-weight:400}.key-hint{font-size:10px;margin-left:24px;opacity:.5;font-weight:400}.result-panel{color:#ebf2e3;background:var(--dark);border-radius:19px;padding:30px;display:flex;flex-direction:column;position:relative;overflow:hidden}.result-panel::before{content:"";position:absolute;width:300px;height:300px;background:radial-gradient(circle,#56703920,transparent 70%);right:-140px;top:45px;pointer-events:none}.result-top{margin-bottom:0}.result-top h2{color:#c4d0bd;font-size:14px}.result-top .step{color:#5f7764}.live-label{display:flex;align-items:center;gap:6px;font-size:10px;color:#91a884}.live-label i{width:5px;height:5px;background:var(--green);border-radius:50%}.result-number-wrap{margin:62px 0 0}#result{display:block;font-size:clamp(58px,6.5vw,82px);font-weight:650;font-variant-numeric:tabular-nums;letter-spacing:-4px;color:var(--green);line-height:1.05;overflow-wrap:anywhere}.result-unit{display:block;font-size:12px;color:#9dad93;margin-top:15px;letter-spacing:1px}.result-caption{color:#7f9677;font-size:11px;margin:20px 0 30px;line-height:1.7}.result-bottom{margin-top:auto;display:grid;grid-template-columns:1fr 1fr;padding:25px 0 23px;border-top:1px solid #344635}.result-bottom>div{display:flex;flex-direction:column;gap:10px}.result-bottom>div+div{border-left:1px solid #344635;padding-left:25px}.result-bottom span{font-size:11px;color:#91a487}.result-bottom strong{font-size:18px;color:#e2edd9;font-weight:500;font-variant-numeric:tabular-nums}.formula{border-top:1px solid #344635;padding-top:19px;display:flex;gap:12px;justify-content:space-between;align-items:center;font-size:10px;color:#67815f}.formula code{font:10px var(--font);color:#93a689}.comparison{font-size:12px;background:#334731;border:1px solid #49613d;border-radius:8px;padding:13px;margin:0 0 25px;line-height:1.7;color:#d3e4c5}.history-section{margin-top:35px}.history-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.history-top h2{font-size:16px;gap:9px}.history-top h2 span{background:#e4e9dd;color:#7e8b71;padding:2px 6px;border-radius:4px;font-size:10px;font-weight:500}.history-top p{margin:8px 0 0;color:#949d8e;font-size:11px}.empty-state{border:1px dashed #d4dccb;border-radius:13px;display:flex;gap:17px;align-items:center;justify-content:center;padding:28px;color:#89957f}.empty-state>span{font-size:29px;border:1px solid #d5ddcc;border-radius:10px;width:45px;height:45px;display:grid;place-items:center}.empty-state strong{font-size:12px;font-weight:500;color:#78886c}.empty-state p{font-size:11px;margin:7px 0 0;line-height:1.6}.history-list{display:grid;gap:8px}.history-row{background:#fff;border:1px solid #e0e5db;border-radius:10px;padding:15px 18px;display:flex;align-items:center;gap:16px}.history-date{color:#84917b;font-size:10px;min-width:90px}.history-detail{flex:1;color:#6d7c62;font-size:12px}.history-value{font-size:22px;font-weight:650;font-variant-numeric:tabular-nums;white-space:nowrap}.history-value small{font-size:9px;color:#99a28f;font-weight:400;margin-left:5px}.history-actions{display:flex;gap:2px}.history-actions button{border:0;background:transparent;color:#8c997e;font-size:11px;min-width:34px;min-height:36px}.history-actions button:hover{background:#eef2e6;border-radius:6px}footer{border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:10px;font-size:10px;color:#94a08b;margin-top:42px;padding:23px 0 30px;line-height:1.7}.footer-divider{margin:0 8px;color:#b4bdad}.toast{position:fixed;bottom:max(26px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);background:#2a3b2b;color:#edf8e3;border-radius:9px;padding:12px 20px;box-shadow:0 4px 24px #17241422;z-index:5;font-size:12px;white-space:nowrap}[hidden]{display:none!important}
@media(min-width:1200px){.shell{padding:0 44px}.intro{padding-top:51px}}
@media(max-width:760px){.shell{padding:0 20px}.header{height:74px}.brand{font-size:21px}.brand-icon{width:32px;height:32px}.intro{padding:30px 0 25px}h1{font-size:36px}.eyebrow{font-size:9px;letter-spacing:1.6px}.subtitle{font-size:12px}.calculator-grid{grid-template-columns:1fr;gap:14px}.panel{padding:24px}.section-title{margin-bottom:23px}.result-panel{padding:24px}.result-number-wrap{margin-top:28px}#result{font-size:68px}.result-unit{margin-top:10px}.result-caption{margin:13px 0 22px}.result-bottom{padding:20px 0}.formula{padding-top:16px}.history-section{margin-top:28px}.history-row{flex-wrap:wrap;padding:13px 15px;gap:10px}.history-date{width:100%;font-size:10px}.history-detail{font-size:11px}.history-value{font-size:20px}.history-actions button{min-width:28px}.empty-state{padding:22px 16px;gap:12px}.empty-state>span{flex-shrink:0}.empty-state p{max-width:220px}footer{margin-top:30px;flex-direction:column;padding-bottom:max(24px,env(safe-area-inset-bottom))}.help{font-size:12px;padding:15px}.key-hint{display:none}}
@media(max-width:360px){.shell{padding:0 14px}.panel,.result-panel{padding:21px}.presets{gap:5px}.presets button{padding:7px 9px}.brand-en{font-size:11px;margin-left:4px}.history-actions{gap:0}.history-value small{display:none}}
.mobile-result{display:none}
@media(max-width:760px){body{padding-bottom:78px}.mobile-result{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:4;align-items:center;justify-content:space-between;gap:14px;background:#18251ef5;border-top:1px solid #405138;backdrop-filter:blur(12px);padding:13px 22px calc(13px + env(safe-area-inset-bottom));color:#a6b69a;box-shadow:0 -5px 20px #18251e15}.mobile-result>span{font-size:11px}.mobile-result>div{display:flex;align-items:baseline;gap:9px}.mobile-result strong{color:var(--green);font-size:29px;letter-spacing:-1px;font-variant-numeric:tabular-nums}.mobile-result small{font-size:10px}.toast{bottom:calc(90px + env(safe-area-inset-bottom))}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}