:root{--forest:#163300;--lime:#9fe870;--spruce:#054d28;--mist:#e2f6d5;--fog:#e8ebe6;--ink:#454745;--muted:#62665f;--line:#dce2d7;--paper:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.65;font-size:16px}button,input,select,textarea{font:inherit}button{cursor:pointer;border:0;transition:background .16s,color .16s}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--spruce);outline-offset:4px}button:disabled{cursor:not-allowed;opacity:.5}[hidden]{display:none!important}header,main,footer{max-width:1264px;margin:auto}header{display:flex;align-items:center;gap:24px;padding:24px 32px;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;align-items:center;font-size:24px;font-weight:900;text-decoration:none;color:var(--forest);line-height:1.35;letter-spacing:-1px}.brand-icon{display:grid;place-items:center;width:46px;height:46px;border-radius:50%;background:var(--forest);color:var(--lime);font-size:25px}.brand small{display:block;font-size:10px;font-weight:500;letter-spacing:2px;margin-top:3px}.team{margin-left:auto;font-size:12px;color:var(--muted)}.quiet{background:white;border:1px solid var(--forest);border-radius:9999px;padding:8px 18px;color:var(--forest);font-size:13px}main{padding:0 32px}.hero{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:40px;padding:72px 0 64px}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--muted)}.hero .eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--forest)}.hero .eyebrow:before{content:"";width:8px;height:8px;background:var(--forest);border-radius:50%}h1{font-size:clamp(44px,5.7vw,76px);line-height:1.12;margin:24px 0;color:var(--forest);font-weight:900;letter-spacing:-.055em}.hero p{font-size:17px;color:var(--muted);margin:24px 0 30px;line-height:1.85}.hero-art{position:relative;background:var(--forest);border-radius:240px 240px 28px 28px;overflow:hidden;padding:36px 0 16px}.hero-art svg{width:100%;display:block}.art-note{padding:8px 24px 14px;font-size:13px;text-align:center;color:var(--mist)}.art-note small{display:block;font-size:10px;color:#c1d2b6;margin-top:6px}.primary,.secondary{padding:13px 24px;border-radius:9999px;font-weight:700;font-size:15px;min-height:46px}.primary{background:var(--forest);color:white}.primary:hover{background:var(--spruce)}.hero .primary{background:var(--lime);color:var(--forest);padding:16px 28px}.hero .primary:hover{background:#b0f18a}.primary span{margin-left:28px;font-size:20px}.secondary{background:white;border:1px solid var(--forest);color:var(--forest)}.secondary:hover{background:var(--mist)}nav{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;padding:7px;background:var(--fog);border-radius:9999px;margin:0 0 52px;scroll-margin-top:16px}nav button{padding:15px 8px;background:transparent;color:var(--forest);font-weight:700;border-radius:9999px;font-size:14px}nav button:hover{background:#dce7d3}nav button.active{background:var(--forest);color:var(--lime)}.panel{padding-bottom:64px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:32px;margin-bottom:28px}.section-head p{max-width:365px;font-size:14px;color:var(--muted)}.section-head h2{font-size:36px;line-height:1.25;font-weight:900;letter-spacing:-1px;margin:10px 0;color:var(--forest)}h3{font-size:21px;line-height:1.4;font-weight:800;margin:0 0 20px;color:var(--forest)}p{margin:10px 0}.lab-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:stretch}.card{background:white;border:1px solid var(--line);border-radius:10px;padding:28px;min-width:0}.stage{background:#f5f7f2}.row{display:flex;justify-content:space-between;align-items:center;gap:15px}.tag{font-size:11px;font-weight:600;padding:6px 12px;background:var(--mist);color:var(--forest);border-radius:9999px;white-space:nowrap}.segmented{display:flex;gap:4px;margin-top:12px;background:var(--fog);padding:5px;border-radius:9999px}.segmented button{flex:1;padding:10px 8px;border-radius:9999px;background:transparent;color:var(--forest);font-size:13px}.segmented button.selected{background:white;color:var(--forest);font-weight:800}#lab{display:block;width:100%;max-height:300px;margin:20px 0}.range-row{display:flex;align-items:center;gap:20px;font-size:14px}.range-row input{flex:1;accent-color:var(--forest);min-width:30px}.range-row output{min-width:48px;font-weight:700;color:var(--forest)}.micro{font-size:12px;color:var(--muted);line-height:1.75;margin-top:16px}.explain{padding:18px;background:var(--mist);border-left:3px solid var(--forest);border-radius:0 10px 10px 0;margin-top:22px;font-size:14px;color:var(--forest)}.steps{background:var(--forest);color:white;border:0;border-radius:28px;padding:32px}.steps h3{color:white;font-size:25px}.steps .eyebrow{color:#c4d8b7}.steps ol,.coach-grid ol{padding-left:22px}.steps li,.coach-grid li{margin-bottom:18px;font-size:15px;color:var(--ink)}.steps li{color:#ecf4e7;padding-left:5px}.steps li::marker{color:var(--lime);font-weight:800}.question{background:#294814;border-radius:10px;padding:20px;margin:24px 0;font-size:14px}.question b{color:var(--lime)}.steps .secondary{background:transparent;border-color:#9bb68b;color:white}.steps .secondary:hover{background:#294814}.steps .micro,.steps .feedback{color:#c4d8b7}.feedback{font-size:14px;color:var(--forest)}.records{margin-top:28px}.records .section-head p{max-width:none;font-size:13px}.records form{display:grid;grid-template-columns:1fr 1fr 1fr auto;gap:16px;align-items:end}label{display:block;font-size:13px;color:var(--forest)}input[type=number],select,textarea{display:block;width:100%;border:1px solid #91988a;background:white;border-radius:10px;padding:12px;margin-top:8px;color:var(--forest);min-width:0}table{width:100%;border-collapse:collapse;font-size:14px;margin-top:24px;text-align:left}th{font-size:12px;color:var(--forest);background:var(--fog)}td,th{padding:14px;border-bottom:1px solid var(--line)}td button{background:none;text-decoration:underline;color:var(--forest)}.table-wrap{overflow-x:auto}.quiz-card{max-width:880px;margin:auto;padding:40px;background:#f5f7f2}.quiz-card h3{font-size:28px}.options{display:grid;gap:14px;margin:28px 0}.options button{border:1px solid var(--line);text-align:left;padding:18px 24px;background:white;color:var(--forest);border-radius:9999px;font-size:15px}.options button:hover:not(:disabled){border-color:var(--forest)}.options button.correct{border-color:var(--forest);background:var(--mist)}.options button.wrong{border-color:#92662e;background:#fff4dd}.options button:disabled{opacity:1}.quiz-card .primary{margin-top:22px}#quiz-feedback{margin-top:20px}.coach-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.coach-grid p{font-size:15px;color:var(--ink)}.guide-questions{display:grid;gap:12px;margin-top:24px}.guide-questions button{padding:14px 20px;background:var(--fog);text-align:left;color:var(--forest);border-radius:9999px;font-size:14px}.guide-questions button:hover{background:var(--mist)}.chat{height:280px;overflow:auto;background:#f5f7f2;border-radius:10px;padding:16px;margin:24px 0}.chat p{padding:12px 16px;font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere}.assistant-message{background:var(--mist);border-radius:10px}.user-message{background:white;border-radius:10px;text-align:right}#chat-form .primary{margin-top:16px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:28px}.stats article{background:var(--forest);color:white;padding:28px;border-radius:28px;display:flex;flex-direction:column;align-items:flex-start;gap:8px}.stats b{font-size:54px;font-weight:900;letter-spacing:-2px;color:var(--lime);line-height:1.1}.stats b span{font-size:22px;letter-spacing:0}.stats p{font-size:15px}.stats small{font-size:12px;color:#c4d8b7}.method{font-size:12px;color:var(--muted);background:var(--fog);border-radius:10px;padding:24px;margin-top:28px}footer{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding:28px 32px 40px}
@media(max-width:900px){.hero{gap:24px;padding:48px 0}.hero h1{font-size:54px}.team{display:none}.quiet{margin-left:auto}.lab-grid,.coach-grid{grid-template-columns:1fr}.records form{grid-template-columns:1fr 1fr}.section-head h2{font-size:30px}.section-head p{max-width:280px}.steps{padding:28px}.stats b{font-size:42px}.stats article{padding:24px}.hero-art{border-radius:160px 160px 24px 24px}}
@media(max-width:600px){header{padding:18px 20px;gap:12px}.brand{font-size:21px}.brand-icon{width:40px;height:40px}.brand small{font-size:9px;letter-spacing:1px}.quiet{font-size:12px;padding:8px 12px}main{padding:0 20px}.hero{grid-template-columns:1fr;padding:36px 0 32px;gap:30px}.hero h1{font-size:clamp(40px,10vw,56px);line-height:1.16;margin:20px 0}.hero p{font-size:15px;margin:20px 0 24px}.hero-art{border-radius:150px 150px 24px 24px;max-width:360px;width:100%;margin:auto;padding:18px 0 8px}.hero-art svg{max-height:180px}.art-note{font-size:11px;padding:0 14px 10px}.art-note small{font-size:9px}.hero .eyebrow{font-size:10px;letter-spacing:1px}nav{grid-template-columns:1fr 1fr;border-radius:26px;gap:4px;margin-bottom:32px;padding:6px}nav button{font-size:13px;padding:12px 6px}.section-head{flex-direction:column;align-items:flex-start;gap:4px;margin-bottom:20px}.section-head h2{font-size:28px;letter-spacing:-.8px}.section-head p{max-width:none;font-size:13px}.card{padding:20px}.steps{padding:24px}.row{gap:8px}.row h3{font-size:18px}.tag{white-space:normal;font-size:10px}.segmented button{padding:10px 4px;font-size:12px}.range-row{gap:12px}.range-row label{font-size:12px}#lab{margin:12px 0}.records form{grid-template-columns:1fr}.records form button{width:100%}.stats{grid-template-columns:1fr;gap:12px}.stats article{flex-direction:row;align-items:center;justify-content:space-between;padding:24px;border-radius:20px}.stats b{font-size:42px}.stats p{font-size:13px;margin:0}.stats small{font-size:11px}.quiz-card h3{font-size:23px}.options button{border-radius:20px;padding:16px}.panel{padding-bottom:40px}footer{display:block;padding:24px 20px}footer span{display:block;margin:5px 0}.primary,.secondary{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}button{transition:none}}
@media print{header,nav,.hero,footer,button,.panel:not(#family){display:none!important}#family{display:block!important}body{background:white}main{padding:0}.card{break-inside:avoid}.stats{grid-template-columns:repeat(3,1fr)}.stats article{display:block;background:white;color:var(--forest);border:1px solid var(--line)}.stats b,.stats small{color:var(--forest)}.coach-grid{grid-template-columns:1fr}.section-head h2{font-size:24px}}