*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:#fbfaf7;color:#181a19;font:400 17px/1.75 "Figtree",system-ui,-apple-system,Arial,sans-serif}
img{max-width:100%;height:auto;display:block}
a{color:#0f766e}
h1,h2,h3{font-family:"Newsreader",Georgia,serif;line-height:1.2;margin:0 0 14px;font-weight:700}
h1{font-size:clamp(29px,4.6vw,44px)}
h2{font-size:clamp(21px,3vw,29px);margin-top:38px}
h3{font-size:clamp(17px,2.2vw,20px);margin-top:20px}
p{margin:0 0 15px}
ul,ol{margin:0 0 15px;padding-left:22px}li{margin:0 0 8px}
table{border-collapse:collapse;width:100%;font-size:15.5px}
th,td{border:1px solid #e2ded3;padding:9px 11px;text-align:left;vertical-align:top}
th{background:#ffffff;font-weight:600}
figure{margin:0}
figcaption{font-size:13px;color:#5f6663;margin-top:6px}
details{border:1px solid #e2ded3;border-radius:10px;padding:11px 14px;margin:0 0 9px;background:#ffffff}
summary{cursor:pointer;font-weight:600}
blockquote{margin:0}
.rb4-wrap{max-width:900px;margin:0 auto;padding:0 20px}
.rb4-18{display:inline-flex;align-items:center;border:2px solid #0f766e;color:#0f766e;
border-radius:999px;padding:2px 10px;font-weight:700;font-size:12px}
.rb4-cta{display:inline-flex;align-items:center;justify-content:center;padding:14px 30px;
border-radius:10px;background:#0f766e;color:#fff;font-weight:700;text-decoration:none;font-size:16px}
.rb4-cta:hover{background:#14b8a6}
.rb4-ctarow{margin:24px 0}
.rb4-navcta{display:inline-flex;align-items:center;padding:9px 18px;border-radius:999px;
background:#0f766e;color:#fff;font-weight:700;font-size:13.5px;text-decoration:none;line-height:1}
.rb4-navcta:hover{background:#14b8a6}
.rb4-nav{display:flex;gap:8px;font-size:14px;align-items:center;flex-wrap:wrap}
.rb4-nav a{color:#5f6663;text-decoration:none;padding:6px 12px;border:1px solid #e2ded3;
border-radius:8px}
.rb4-nav a:hover{color:#0f766e;border-color:#0f766e}
.rb4-mark img{height:40px;width:auto;object-fit:contain}
.rb4-eyebrow{margin:0 0 10px;font-size:12.5px;letter-spacing:.16em;color:#0f766e;font-weight:700}
.rb4-lead{font-size:19px;line-height:1.65;color:#5f6663;max-width:62ch}
.rb4-meta{color:#5f6663;font-size:13.5px;margin:16px 0 0}
.rb4-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:26px 0}
.rb4-st{border:1px solid #e2ded3;background:#ffffff;border-radius:12px;padding:13px 15px}
.rb4-st span{display:block;font-weight:700;color:#0f766e;font-size:16px}
.rb4-st p{margin:3px 0 0;font-size:13.5px;color:#5f6663}
.rb4-ol{counter-reset:s;list-style:none;padding-left:0}
.rb4-ol li{position:relative;padding-left:42px}
.rb4-ol li::before{counter-increment:s;content:counter(s);position:absolute;left:0;top:1px;
width:28px;height:28px;border-radius:8px;background:#0f766e;color:#fff;font-weight:700;
display:flex;align-items:center;justify-content:center;font-size:14px}
.rb4-note{border-left:4px solid #0f766e;background:#ffffff;padding:13px 16px;margin:0 0 18px;
border-radius:0 10px 10px 0}
.rb4-q{border-left:4px solid #0f766e;padding:6px 0 6px 18px;margin:0 0 20px;font-size:19px;
line-height:1.55;color:#181a19;font-style:italic}
.rb4-boxes{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:0 0 20px}
.rb4-box{border:1px solid #e2ded3;background:#ffffff;border-radius:12px;padding:15px 17px}
.rb4-box h3{margin:0 0 6px;font-size:16px}
.rb4-box p{margin:0;font-size:14.5px;color:#5f6663}
.rb4-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin:0 0 22px}
.rb4-gcard img{width:100%;max-width:200px;border-radius:8px;border:1px solid #e2ded3}
.rb4-tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;margin:0 0 22px}
.rb4-tile img{width:100%;max-width:340px;border-radius:12px;border:1px solid #e2ded3}
.rb4-provs{display:flex;flex-wrap:wrap;gap:16px;align-items:center;margin:0 0 22px;
padding:16px;border:1px solid #e2ded3;border-radius:12px;background:#ffffff}
.rb4-provs img{height:26px;width:auto;opacity:.85}
.rb4-tw{overflow-x:auto;margin:0 0 20px}
.rb4-fig img{border-radius:12px;border:1px solid #e2ded3}
.rb4-fig{margin:0 0 22px}
.rb4-lic{margin-top:40px;border:1px solid #e2ded3;background:#ffffff;border-radius:14px;padding:20px 22px}
.rb4-dl{display:grid;grid-template-columns:max-content 1fr;gap:7px 18px;margin:14px 0 0;font-size:15.5px}
.rb4-dl dt{color:#5f6663}.rb4-dl dd{margin:0;font-weight:600}
.rb4-rg{margin-top:14px;font-size:14.5px;color:#5f6663}
.rb4-badges{display:flex;gap:14px;align-items:center;margin-top:16px}
.rb4-badges img{height:30px;width:auto}
.rb4-author{display:flex;gap:16px;align-items:flex-start;border:1px solid #e2ded3;
background:#ffffff;border-radius:14px;padding:16px 18px;margin-top:26px}
.rb4-author img{flex:0 0 72px;width:72px;height:72px;border-radius:50%;object-fit:cover;
border:2px solid #0f766e}
.rb4-aname{margin:0;font-weight:700}
.rb4-arole{margin:0 0 7px;color:#0f766e;font-size:14px}
.rb4-abio{margin:0;font-size:14.5px;color:#5f6663}
.rb4-faq{margin:0 0 22px}
.rb4-ft{margin-top:46px;border-top:1px solid #e2ded3;background:#ffffff;padding:26px 0 22px;font-size:15px}
.rb4-ftlogo{height:36px;width:auto;margin-bottom:12px}
.rb4-disc{margin:16px 0 0;font-size:13.5px;color:#5f6663;border-top:1px solid #e2ded3;padding-top:14px}
.rb4-copy{margin:12px 0 0;font-size:13.5px;color:#5f6663;display:flex;align-items:center;gap:10px}

.rb4-dl dt{font-weight:700;color:#14b8a6;margin-top:16px}
.rb4-dl dd{margin:5px 0 0;color:#5f6663}
.rb4-onum{padding-left:22px;margin:18px 0}
.rb4-onum li{margin:11px 0;color:#5f6663}.rb4-onum strong{color:#181a19}
.rb4-stack{display:grid;gap:12px;margin:18px 0}
.rb4-srow{background:#ffffff;border:1px solid #e2ded3;border-left:3px solid #0f766e;border-radius:10px;padding:16px 18px}
.rb4-srow h3{margin:0 0 5px;font-size:16px;color:#14b8a6}.rb4-srow p{margin:0;color:#5f6663;font-size:14.5px}
.rb4-tv{display:grid;gap:10px;margin:20px 0}
.rb4-tvrow{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;background:#ffffff;border:1px solid #e2ded3;border-radius:10px;padding:14px 16px}
.rb4-tvcell span{display:block;font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:#14b8a6}
.rb4-tvcell p{margin:4px 0 0;font-size:14.5px}
.rb4-glist{list-style:none;padding:0;margin:20px 0;display:grid;gap:10px}
.rb4-glist li{display:flex;align-items:center;gap:14px;background:#ffffff;border:1px solid #e2ded3;border-radius:10px;padding:9px 14px}
.rb4-glist img{width:74px;border-radius:7px;flex:0 0 74px}
.rb4-glist span{font-weight:600;font-size:14.5px}
.rb4-gduo{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px;margin:20px 0}

.rb4-quick{background:linear-gradient(180deg,#f1efe9,#ffffff);border:1px solid #e2ded3;border-left:4px solid #0f766e;border-radius:14px;padding:20px 22px;margin:22px 0}
.rb4-quick h3{margin:0 0 10px;font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:#14b8a6}
.rb4-quick dl{margin:0;display:grid;gap:10px}
.rb4-quick dt{font-weight:700;color:#181a19;font-size:15px}
.rb4-quick dd{margin:2px 0 0;color:#5f6663;font-size:14.5px}
.rb4-pc{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0}
.rb4-pc-col{background:#ffffff;border:1px solid #e2ded3;border-radius:14px;padding:18px 20px}
.rb4-pc-col h3{margin:0 0 10px;font-size:15px}
.rb4-pc-col ul{margin:0;padding:0;list-style:none;display:grid;gap:9px}
.rb4-pc-col li{position:relative;padding-left:26px;color:#5f6663;font-size:14.5px;line-height:1.5}
.rb4-pc-pro{border-top:3px solid #0f766e}
.rb4-pc-pro h3{color:#0f766e}
.rb4-pc-pro li::before{content:"\2713";position:absolute;left:0;top:0;color:#0f766e;font-weight:700}
.rb4-pc-con{border-top:3px solid #14b8a6}
.rb4-pc-con h3{color:#14b8a6}
.rb4-pc-con li::before{content:"!";position:absolute;left:4px;top:0;color:#14b8a6;font-weight:700}
.rb4-steps{list-style:none;counter-reset:rs;padding:0;margin:22px 0;display:grid;gap:12px}
.rb4-steps li{counter-increment:rs;position:relative;background:#ffffff;border:1px solid #e2ded3;border-radius:12px;padding:16px 18px 16px 62px}
.rb4-steps li::before{content:counter(rs);position:absolute;left:16px;top:16px;width:32px;height:32px;border-radius:50%;background:#0f766e;color:#08120b;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px}
.rb4-steps h3{margin:0 0 4px;font-size:16px}
.rb4-steps p{margin:0;color:#5f6663;font-size:14.5px}
@media(max-width:760px){.rb4-pc{grid-template-columns:1fr}}

.rb4-socials{display:flex;gap:10px;align-items:center;margin:18px 0 6px;flex-wrap:wrap}
.rb4-socials>span{font-size:13px;color:#5f6663;margin-right:4px;font-weight:600}
.rb4-socials a{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
border:1px solid #e2ded3;border-radius:9px;color:#5f6663;text-decoration:none;transition:.15s}
.rb4-socials a:hover{color:#fff;background:#0f766e;border-color:#0f766e}
.rb4-socials svg{width:18px;height:18px;fill:currentColor}
.rb4-ftmenu{display:flex;flex-wrap:wrap;gap:8px 18px;margin:16px 0 4px;padding:14px 0;
border-top:1px solid #e2ded3;border-bottom:1px solid #e2ded3}
.rb4-ftmenu a{color:#5f6663;text-decoration:none;font-size:13.5px}
.rb4-ftmenu a:hover{color:#0f766e}

.rb4-dl dt{font-weight:700;color:#14b8a6;margin-top:15px}.rb4-dl dd{margin:4px 0 0;color:#5f6663}
.rb4-onum{padding-left:22px}.rb4-onum li{margin:10px 0;color:#5f6663}.rb4-onum strong{color:#181a19}
.rb4-stack{display:grid;gap:11px;margin:18px 0}
.rb4-srow{background:#ffffff;border:1px solid #e2ded3;border-left:3px solid #0f766e;border-radius:10px;padding:15px 17px}
.rb4-srow h3{margin:0 0 4px;font-size:16px;color:#14b8a6}.rb4-srow p{margin:0;color:#5f6663;font-size:14.5px}
.rb4-chk{list-style:none;padding:0;margin:16px 0;display:grid;gap:9px}
.rb4-chk li{position:relative;padding-left:24px;color:#5f6663}
.rb4-chk li::before{content:"\2192";position:absolute;left:0;color:#0f766e}
.rb4-chk b{color:#181a19}
.rb4-tv{display:grid;gap:9px;margin:18px 0}
.rb4-tvrow{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px;background:#ffffff;border:1px solid #e2ded3;border-radius:10px;padding:13px 15px}
.rb4-tvcell span{display:block;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#14b8a6}
.rb4-tvcell p{margin:3px 0 0;font-size:14.5px}
.rb4-glist{list-style:none;padding:0;margin:18px 0;display:grid;gap:9px}
.rb4-glist li{display:flex;align-items:center;gap:14px;background:#ffffff;border:1px solid #e2ded3;border-radius:10px;padding:8px 13px}
.rb4-glist img{width:70px;border-radius:6px;flex:0 0 70px}
.rb4-glist span{font-weight:600;font-size:14.5px}
.rb4-gwide{display:grid;grid-template-columns:repeat(auto-fill,minmax(215px,1fr));gap:15px;margin:18px 0}

.rb4-siblings{list-style:none;padding:0;margin:16px 0;display:grid;gap:9px}
.rb4-siblings li{background:#ffffff;border:1px solid #e2ded3;border-left:3px solid #0f766e;border-radius:8px;padding:12px 15px;color:#5f6663;font-size:14.5px}
.rb4-siblings a{font-weight:700}
.rb4-sibdl{margin:16px 0}.rb4-sibdl dt{margin-top:12px;font-weight:700}
.rb4-sibdl dd{margin:2px 0 0;color:#5f6663;font-size:14.5px}
.rb4-sibrail{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0}
.rb4-sibrail a{border:1px solid #e2ded3;background:#ffffff;border-radius:999px;padding:7px 15px;font-size:13.5px}
.rb4-sibnum{margin:16px 0;padding-left:22px}.rb4-sibnum li{margin:8px 0}
.rb4-sibcards{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;margin:16px 0}
.rb4-sibcard{display:block;background:#ffffff;border:1px solid #e2ded3;border-radius:12px;padding:14px 16px;text-decoration:none}
.rb4-sibcard b{display:block;font-size:13px;color:#14b8a6}
.rb4-sibcard span{display:block;margin-top:3px;color:#5f6663;font-size:14px}

.rb4-ftcols{display:grid;grid-template-columns:1.5fr 1fr;gap:24px;align-items:start}
.rb4-ftcard{background:#ffffff;border:1px solid #e2ded3;border-radius:18px;padding:24px}
.rb4-ftrule{border-top:2px solid #181a19;padding-top:14px}
.rb4-navrule a{text-transform:uppercase;font-size:12.5px;letter-spacing:.06em}
@media(max-width:760px){.rb4-ftcols{grid-template-columns:1fr}}

.rb4-top{position:sticky;top:0;z-index:30;background:#ffffff;border-bottom:1px solid #e2ded3}
.rb4-topin{display:flex;align-items:center;gap:16px;padding:12px 0;flex-wrap:wrap}
.rb4-topin .rb4-nav{margin-left:auto}
.rb4-eyebrow{color:#14b8a6;letter-spacing:.2em;font-size:12px;text-transform:uppercase}
.rb4-lead{color:#5f6663;font-size:16.5px;line-height:1.7}
.rb4-ctarow{display:flex;gap:12px;flex-wrap:wrap;margin:20px 0}
.rb4-banner img{width:100%;height:auto;border-radius:2px;border:1px solid #e2ded3}
.rb4-main h2{margin-top:42px}
.rb4-tw{overflow-x:auto;margin:18px 0}
.rb4-tw table{width:100%;border-collapse:collapse;background:#ffffff}
.rb4-tw th{background:#f1efe9;color:#14b8a6;text-align:left;font-size:12.5px;letter-spacing:.05em;text-transform:uppercase;padding:12px 14px}
.rb4-tw td{border-top:1px solid #e2ded3;padding:12px 14px;font-size:14.5px}
.rb4-tw td:first-child{font-weight:600;color:#181a19;width:38%}
.rb4-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px}
.rb4-gcard{background:#ffffff;border:1px solid #e2ded3;border-radius:2px;padding:9px 9px 12px;text-align:center}
.rb4-gcard img{width:100%;max-width:none;border-radius:8px;border:0}
.rb4-gcard figcaption{margin-top:7px;font-size:12.5px;font-weight:600;line-height:1.3}
.rb4-box{background:#ffffff;border:1px solid #e2ded3;border-radius:2px;padding:18px}
.rb4-box h3{color:#14b8a6;font-size:16px;margin:0 0 6px}
.rb4-note{border-left:3px solid #0f766e;background:#ffffff;padding:15px 18px;border-radius:8px}
.rb4-quick{background:#f1efe9;border:1px solid #e2ded3;border-left:4px solid #0f766e;border-radius:12px;padding:18px 20px;margin:20px 0}
.rb4-quick h3{margin:0 0 10px;font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:#14b8a6}
.rb4-quick dl{margin:0;display:grid;gap:9px}
.rb4-quick dt{font-weight:700;font-size:15px}.rb4-quick dd{margin:2px 0 0;color:#5f6663;font-size:14.5px}
.rb4-pc{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:20px 0}
.rb4-pc-col{background:#ffffff;border:1px solid #e2ded3;border-radius:12px;padding:18px}
.rb4-pc-col h3{margin:0 0 9px;font-size:15px}
.rb4-pc-col ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.rb4-pc-col li{position:relative;padding-left:24px;color:#5f6663;font-size:14.5px}
.rb4-pc-pro{border-top:3px solid #0f766e}.rb4-pc-pro h3{color:#0f766e}
.rb4-pc-pro li::before{content:"\2713";position:absolute;left:0;color:#0f766e;font-weight:700}
.rb4-pc-con{border-top:3px solid #14b8a6}.rb4-pc-con h3{color:#14b8a6}
.rb4-pc-con li::before{content:"!";position:absolute;left:5px;color:#14b8a6;font-weight:700}
.rb4-steps{list-style:none;counter-reset:s;padding:0;margin:20px 0;display:grid;gap:11px}
.rb4-steps li{counter-increment:s;position:relative;background:#ffffff;border:1px solid #e2ded3;border-radius:12px;padding:15px 18px 15px 58px}
.rb4-steps li::before{content:counter(s);position:absolute;left:15px;top:15px;width:30px;height:30px;border-radius:50%;background:#0f766e;color:#fbfaf7;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px}
.rb4-steps h3{margin:0 0 3px;font-size:16px}.rb4-steps p{margin:0;color:#5f6663;font-size:14.5px}
@media(max-width:900px){.rb4-pc{grid-template-columns:1fr}}

.rb4-hero{padding:52px 0 26px}
.rb4-hero h1{font-size:clamp(30px,4.8vw,48px);line-height:1.12}
.rb4-index{border-top:2px solid #181a19;border-bottom:1px solid #e2ded3;padding:18px 0;margin:22px 0 0}
.rb4-index h4{margin:0 0 12px;font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:#0f766e}
.rb4-toc{display:grid;grid-template-columns:1fr 1fr;gap:2px 26px;counter-reset:ix}
.rb4-toc a{counter-increment:ix;display:flex;gap:12px;align-items:baseline;color:#181a19;text-decoration:none;font-size:15px;padding:7px 0;border-bottom:1px solid #e2ded3}
.rb4-toc a::before{content:counter(ix,decimal-leading-zero);color:#0f766e;font-size:12px;font-weight:700;min-width:24px}
.rb4-toc a:hover{color:#0f766e}
.rb4-stats{display:flex;flex-wrap:wrap;gap:26px;padding:16px 0 4px}
.rb4-st{background:none;border:0;padding:0}
.rb4-main h2{border-top:1px solid #e2ded3;padding-top:26px}
@media(max-width:760px){.rb4-toc{grid-template-columns:1fr}}
.rb4-mark img,.rb4-ftlogo{filter:brightness(0)}