:root{
  --ink:#101615;--muted:#5f6b67;--paper:#f7faf8;--card:#ffffff;
  --green:#23c46e;--green2:#0f9f55;--deep:#0b2920;--line:#dce8e1;
  --shadow:0 18px 50px rgba(8,36,26,.10);--radius:22px;--max:1160px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:16px/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper)}
a{color:var(--deep);text-decoration-thickness:1px;text-underline-offset:3px}
img{max-width:100%;height:auto} .wrap{width:min(var(--max),calc(100% - 36px));margin:auto}
.skip{position:absolute;left:-9999px}.skip:focus{left:12px;top:12px;background:#fff;padding:10px;z-index:1000}
.notice{background:var(--deep);color:#eafff1;font-size:.88rem;padding:8px 0;text-align:center}
header{position:sticky;top:0;z-index:50;background:rgba(247,250,248,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{min-height:70px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;font-weight:850;font-size:1.16rem;text-decoration:none;margin-right:auto}
.mark{width:34px;height:34px;border-radius:50%;border:7px solid var(--green);box-shadow:inset 0 0 0 4px var(--deep)}
nav{display:flex;gap:20px;align-items:center}nav a{text-decoration:none;font-weight:650}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--green);color:#061a11!important;text-decoration:none;font-weight:800;border-radius:999px;padding:12px 18px;border:0;cursor:pointer}
.btn:hover{background:#4bda8a}.btn.dark{background:var(--deep);color:white!important}.btn.ghost{background:white;border:1px solid var(--line)}
.menu{display:none;background:none;border:0;font-size:1.5rem}
.hero{padding:74px 0 54px;background:radial-gradient(circle at 85% 10%,rgba(35,196,110,.24),transparent 30%),linear-gradient(180deg,#fff,#f7faf8)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-weight:850;color:var(--green2);font-size:.78rem}
h1{font-size:clamp(2.4rem,5vw,4.8rem);line-height:1.02;letter-spacing:-.045em;margin:.2em 0}
h2{font-size:clamp(1.65rem,3vw,2.55rem);line-height:1.12;letter-spacing:-.025em;margin:1.6em 0 .55em}
h3{font-size:1.2rem;line-height:1.25}.lede{font-size:1.18rem;color:#34413c;max-width:760px}
.hero-card,.card,.callout,.toc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.hero-card{padding:28px}.device{height:320px;position:relative;display:grid;place-items:center;overflow:hidden;background:linear-gradient(145deg,#07140f,#163b2d);border-radius:18px}
.device:before{content:"";width:92px;height:250px;border-radius:30px;background:linear-gradient(90deg,#111,#303632 50%,#0c0d0d);border-top:34px solid var(--green);border-bottom:18px solid var(--green);box-shadow:0 0 50px rgba(35,196,110,.22)}
.device:after{content:"RR";position:absolute;color:#fff;font-weight:900;letter-spacing:.1em}
section{padding:58px 0}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{padding:24px}.card p{color:var(--muted)}.kicker{font-size:.8rem;font-weight:850;color:var(--green2);text-transform:uppercase;letter-spacing:.08em}
.article{display:grid;grid-template-columns:minmax(0,760px) 280px;gap:50px;align-items:start;padding-top:48px}.article main{min-width:0}
.toc{padding:20px;position:sticky;top:94px}.toc a{display:block;padding:5px 0;text-decoration:none;font-size:.93rem}
.meta{color:var(--muted);font-size:.9rem}.disclosure{border-left:4px solid var(--green);padding:14px 18px;background:#eef9f2;border-radius:0 12px 12px 0}
table{width:100%;border-collapse:collapse;margin:24px 0;background:#fff;border-radius:14px;overflow:hidden}th,td{padding:13px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:#eaf7ef}
.callout{padding:26px;margin:34px 0;background:linear-gradient(135deg,#fff,#eaf9f0)}
.breadcrumbs{font-size:.88rem;color:var(--muted);padding-top:22px}.breadcrumbs a{color:inherit}
.checks{padding:0;list-style:none}.checks li{padding:6px 0 6px 28px;position:relative}.checks li:before{content:"✓";position:absolute;left:0;color:var(--green2);font-weight:900}
footer{background:#071a13;color:#cde0d6;padding:50px 0 30px;margin-top:60px}footer a{color:#fff}.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:35px}
.small{font-size:.85rem;color:var(--muted)}footer .small{color:#9db5a9}
.popup{position:fixed;inset:0;background:rgba(4,15,10,.62);z-index:90;display:none;align-items:end;justify-content:center;padding:18px}.popup.show{display:flex}
.popup-box{width:min(620px,100%);background:white;border-radius:24px;padding:26px;box-shadow:0 30px 80px rgba(0,0,0,.35);position:relative}.close{position:absolute;right:16px;top:12px;border:0;background:none;font-size:1.6rem;cursor:pointer}
.aff-img{display:block;text-decoration:none}
.badge{display:inline-block;padding:6px 10px;border-radius:999px;background:#e7f8ee;color:#08733d;font-size:.78rem;font-weight:800}
@media(max-width:820px){.hero-grid,.grid3,.grid2,.article,.foot{grid-template-columns:1fr}.article{gap:18px}.toc{position:static}.menu{display:block}nav{display:none;position:absolute;top:70px;left:0;right:0;background:#fff;padding:18px;flex-direction:column;border-bottom:1px solid var(--line)}nav.open{display:flex}.nav>.btn{display:none}.hero{padding-top:48px}.device{height:260px}h1{font-size:2.7rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}