:root{color-scheme:light;--ink:#17201d;--green:#1f5947;--muted:#52645b;--border:#d8e2dd}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:#f7f9f6;font:16px/1.7 Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif}header,main,footer{max-width:1120px;margin:auto;padding-left:32px;padding-right:32px}header{display:flex;justify-content:space-between;align-items:center;padding-top:22px;padding-bottom:22px;border-bottom:1px solid var(--border)}nav{display:flex;gap:24px;align-items:center}a{color:var(--green)}.brand{font-size:25px;font-weight:750;text-decoration:none}.brand span{font-size:17px}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:44px;padding:9px 20px;border:1px solid var(--border);border-radius:8px;text-decoration:none;font-weight:600;background:white}.primary{background:var(--green);color:white;border-color:var(--green)}.hero{padding:84px 0 72px;max-width:850px}.eyebrow{font-size:13px;color:var(--green);letter-spacing:1px}.hero h1{font-size:clamp(36px,5.2vw,64px);line-height:1.23;letter-spacing:-1.5px;margin:20px 0 24px}.intro{font-size:20px;max-width:620px;color:var(--muted)}.hero small{display:block;font-size:12px;color:var(--muted);margin-top:18px}.text-link{margin-left:24px}.example{padding:32px;border:1px solid var(--border);border-radius:18px;background:white}.example>div>p{color:var(--muted);max-width:640px}h2{font-size:26px;line-height:1.4;text-wrap:balance}h3{font-size:19px}.steps{display:flex;border-bottom:1px solid var(--border);gap:8px;margin:24px 0}.steps button{font:inherit;min-height:48px;padding:8px 18px;border:0;background:transparent;color:var(--muted);border-bottom:3px solid transparent;cursor:pointer}.steps button[aria-selected=true]{border-color:var(--green);color:var(--green);font-weight:650}.paper-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.paper-grid article,[role=tabpanel]>article{padding:24px;background:#f3f7f4;border-radius:12px}.paper-grid span{font-size:12px;color:var(--muted)}.paper-grid h3{margin-top:8px}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;text-align:left}td,th{padding:10px;border-bottom:1px solid var(--border)}details{margin-top:20px}summary{cursor:pointer;min-height:44px}blockquote{margin:10px 0;padding:12px 18px;border-left:3px solid var(--green)}.journeys{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin:64px 0}.journeys span{color:var(--green);font-size:13px}.journeys h2{font-size:23px}.journeys p{color:var(--muted)}.closing{border-top:1px solid var(--border);padding:40px 0 60px;max-width:760px}.closing p{color:var(--muted)}footer{font-size:12px;color:var(--muted);padding-bottom:30px}footer a{margin-left:15px}:focus-visible{outline:3px solid #2a7b60;outline-offset:4px}[hidden]{display:none!important}@media(max-width:640px){header,main,footer{padding-left:18px;padding-right:18px}header{gap:12px}nav{gap:12px;font-size:13px}.brand span{font-size:14px}.hero{padding:46px 0}.hero h1{letter-spacing:-.8px}.intro{font-size:17px}.text-link{display:block;margin:18px 0 0}.example{padding:18px}.paper-grid,.journeys{grid-template-columns:1fr}.steps{gap:0}.steps button{padding:8px;font-size:14px;flex:1}.paper-grid article,[role=tabpanel]>article{padding:16px}.journeys{gap:16px;margin:40px 0}nav .button{padding:8px 12px}}