
:root{--bg:#fff;--surface:#f8faf9;--surface2:#f3f7f4;--line:#e6ebe7;--ink:#141b17;--muted:#617169;--green:#139d52;--green-dark:#0e7840;--green-pale:#e5f7eb;--font:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;font-size:15px;line-height:1.75}a{color:var(--green-dark);text-decoration:none}a:hover{color:#07552b}button{font:inherit}
.topbar{height:74px;display:flex;align-items:center;justify-content:space-between;padding:0 36px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;background:rgba(255,255,255,.96);backdrop-filter:blur(12px)}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-weight:750;font-size:17px;letter-spacing:-.6px}.brand:hover{color:var(--ink)}.mark{width:34px;height:34px;background:var(--ink);border-radius:11px;color:#fff;display:grid;place-items:center;font-weight:850;font-size:18px;position:relative}.mark:after{content:"";position:absolute;width:8px;height:8px;background:#2fc76f;border:2px solid #fff;border-radius:50%;right:-3px;top:-3px}.brand-sub{font-size:11px;letter-spacing:.6px;color:#87968c;display:block;line-height:1.1;font-weight:600;text-transform:uppercase}.brand-name{line-height:1.15}.topactions{display:flex;align-items:center;gap:17px}.topactions .secondary-link{font-size:13px;color:#6e7b72;font-weight:600}.official{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;padding:10px 16px;background:#171f1a;color:white!important;font-weight:700;font-size:13px;border:1px solid #171f1a;white-space:nowrap;transition:all .18s}.official:hover{background:#37463c;transform:translateY(-1px)}.official svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2}.layout{display:grid;grid-template-columns:250px minmax(0,790px) 220px;gap:40px;max-width:1510px;margin:0 auto;padding:40px 42px 80px}.sidebar{border-right:1px solid var(--line);padding-right:24px}.sidebar-inner{position:sticky;top:105px}.nav-group{margin-bottom:26px}.nav-label{font-size:10px;text-transform:uppercase;font-weight:800;letter-spacing:1.8px;color:#98a59b;padding:0 13px;margin:0 0 9px}.nav-link{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:9px;color:#53645a;font-size:13px;font-weight:550;margin:2px 0}.nav-link:hover{background:#f4f8f5;color:var(--ink)}.nav-link.active{color:#106b3a;background:#e9f7ed;font-weight:730}.nav-icon{font-size:14px;opacity:.7}.side-footer{font-size:11px;color:#91a095;line-height:1.6;margin:38px 10px}.main{min-width:0;padding:0 0 80px}.eyebrow{display:flex;align-items:center;gap:10px;color:#169450;font-size:10px;font-weight:850;letter-spacing:2px;margin:12px 0 22px}.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:#27bf6a;box-shadow:0 0 0 4px #e7f8eb}.crumbs{color:#819087;font-size:12px;display:flex;align-items:center;gap:9px}.crumbs a{color:#718177}.crumbs a:hover{color:#149655}.crumbs span{color:#bac6bc}.main h1{font-size:clamp(35px,3.5vw,54px);letter-spacing:-2.8px;line-height:1.10;margin:0 0 21px;font-weight:800}.lead{color:#697a70;font-size:17px;line-height:1.8;max-width:690px;margin:0 0 30px}.head-rule{height:1px;background:var(--line);margin:36px 0 42px}.content h2{font-size:24px;line-height:1.32;letter-spacing:-.65px;margin:42px 0 12px;padding-top:4px}.content p{color:#536259;line-height:1.88;margin:10px 0 20px}.content strong{color:#1b2920}.content h2:first-child{margin-top:0}.content a:not(.topic){text-decoration:underline;text-decoration-color:#a4dabc;text-underline-offset:4px}.content h2[id]{scroll-margin-top:100px}.content ul,.content ol{padding-left:24px;color:#54655b}.content li{margin:9px 0}.content li::marker{color:#199b57}.note{margin:30px 0;background:#f0f8f2;border:1px solid #cfe9d7;border-radius:14px;padding:18px 21px;font-size:13px;color:#4c6a58;line-height:1.8}.note b{color:#1c5835}.right-rail{border-left:1px solid var(--line);padding-left:24px}.right-inner{position:sticky;top:105px}.rail-heading{font-size:10px;text-transform:uppercase;font-weight:800;letter-spacing:1.5px;color:#9aaa9f;margin:3px 0 19px}.toc-link{display:block;color:#738479;font-size:12px;line-height:1.7;padding:6px 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#ddeddf;padding-left:26px}.timeline>div{position:relative;margin-bottom:23px}.timeline>div:before{content:"";position:absolute;background:#26b463;border-radius:50%;width:9px;height:9px;left:-31px;top:8px;box-shadow:0 0 0 4px white}.timeline .date{display:block;color:#23934e;letter-spacing:1px;font-size:10px;font-weight:800;margin-bottom:3px;text-transform:uppercase}.timeline strong{font-size:15px}.timeline p{font-size:13px;margin:6px 0 0}.info-strip{padding:24px 26px;border-radius:15px;border:1px solid #dbeadd;background:linear-gradient(135deg,#f7fcf8,#f1faf3);margin-bottom:36px}.info-strip .mini-kicker{display:block;font-size:10px;color:#359b5a;font-weight:800;letter-spacing:1.5px;margin-bottom:9px}.info-strip strong{font-size:24px;letter-spacing:-.8px}.info-strip small{display:block;color:#6e8573;margin-top:8px}.checklist li{padding-left:6px}.feature-list>div{padding:17px 0;border-bottom:1px solid var(--line)}.feature-list b{font-size:15px;color:#273b2e}.feature-list p{font-size:13px;margin:5px 0 4px}.compare{display:grid;grid-template-columns:1fr 1fr;gap:13px}.compare>div{padding:20px;background:#f9fbfa;border:1px solid var(--line);border-radius:12px}.compare strong{font-size:15px}.compare p{font-size:12px;margin:7px 0}.compare a{font-size:12px;font-weight:700}.steps{list-style:none;counter-reset:step;padding-left:0!important}.steps li{counter-increment:step;padding:0 0 16px 50px;position:relative;min-height:53px}.steps li:before{content:counter(step);position:absolute;left:0;top:0;border:1px solid #cce7d3;background:#eff9f1;border-radius:10px;color:#15894b;font-size:13px;font-weight:850;width:34px;height:34px;display:grid;place-items:center}.steps li b{color:#1c2e23}.steps li p{font-size:13px;margin:4px 0 0}.glossary{border:1px solid var(--line);border-radius:13px;overflow:hidden;margin:22px 0}.glossary>div{display:grid;grid-template-columns:170px 1fr;padding:14px 19px;border-bottom:1px solid var(--line);gap:15px;font-size:13px}.glossary>div:last-child{border:0}.glossary dt{font-weight:800}.glossary dd{margin:0;color:#66776b}.source-callout{padding:20px;border:1px solid var(--line);background:#fbfcfb;border-radius:12px}.source-callout b{display:block;margin-bottom:9px}.source-callout a{display:block;margin:7px 0;font-size:13px}.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:12px;margin:20px 0 28px}.table-scroll table{width:100%;border-collapse:collapse;min-width:500px;text-align:left}.table-scroll th{font-size:11px;font-weight:800;letter-spacing:.5px;color:#536f5b;background:#f4f8f5;padding:13px 16px}.table-scroll td{font-size:12px;color:#4d6255;padding:13px 16px;border-top:1px solid var(--line)}.table-scroll td:first-child{font-weight:630;color:#2c3b2f}.table-scroll .total td{font-weight:850;background:#f8fbf8;color:#153e24}.faq-list details{border:1px solid #e2eae4;border-radius:12px;margin:0 0 11px;background:#fff;overflow:hidden}.faq-list 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@media(max-width:1200px){.layout{grid-template-columns:225px minmax(0,1fr);gap:34px}.right-rail{display:none}.sidebar{padding-right:19px}.layout{padding:34px 30px}}@media(max-width:760px){.topbar{height:66px;padding:0 18px}.brand{font-size:15px}.topactions .secondary-link{display:none}.official{font-size:11px;padding:9px 11px}.menu-toggle{display:block}.layout{display:block;padding:26px 22px 65px}.sidebar{display:none;border:none;position:fixed;left:0;right:0;top:66px;bottom:0;z-index:30;background:#fff;overflow-y:auto;padding:26px 24px;box-shadow:0 10px 22px rgba(0,0,0,.05)}.sidebar.open{display:block}.sidebar-inner{position:static}.main h1{font-size:40px;letter-spacing:-1.7px}.lead{font-size:15px}.hero-panel{grid-template-columns:repeat(2,1fr)}.hero-panel.trio{grid-template-columns:repeat(3,1fr)}.stat:nth-child(2){border-right:0}.stat{padding:15px 12px}.stat strong{font-size:20px}.topic-grid{grid-template-columns:1fr}.compare{grid-template-columns:1fr}.glossary>div{grid-template-columns:1fr;gap:3px}.content h2{font-size:22px}.head-rule{margin:25px 0 30px}.prev-next{grid-template-columns:1fr}}@media(max-width:430px){.topactions{gap:7px}.official{font-size:0;gap:0;padding:9px 10px}.official svg{width:17px;height:17px}.brand-sub{font-size:9px}.brand{gap:8px}.mark{width:30px;height:30px}.main h1{font-size:34px}.hero-panel.trio{grid-template-columns:1fr}.hero-panel.trio .stat{border-right:0;border-bottom:1px solid var(--line)}.hero-panel.trio .stat:last-child{border:0}}
