:root{--bg:#0b0c0a;--bg2:#10120e;--pit:#060705;--ink:#ece9df;--soft:#cfccbf;--mute:#a5a294;--gold:#cdbf93;--line:#3b382c;--line2:#565240;--green:#83d883;--green-d:#07140a;--err:#ffa18f;--gap:var(--bg);
--serif:"Cormorant Garamond","Cormorant",Georgia,"Times New Roman",serif;--sans:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"Xanh Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;
--wave:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='48' height='12'%3E%3Cg fill='none' stroke='%23cdbf93' stroke-width='.6'%3E%3Cpath d='M0 6Q12-5 24 6T48 6'/%3E%3Cpath d='M0 6Q12 17 24 6T48 6'/%3E%3Cpath d='M0 6Q12 0 24 6T48 6' opacity='.6'/%3E%3Cpath d='M0 6Q12 12 24 6T48 6' opacity='.6'/%3E%3C/g%3E%3C/svg%3E")}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.65 var(--sans);overflow-x:hidden;-webkit-font-smoothing:antialiased}
[hidden]{display:none!important}
a{color:var(--green);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:#b4ecb4}
:focus-visible{outline:2px solid #fff;outline-offset:3px}
h1,h2,h3,p,ul,ol,dl,dd,figure{margin:0}
h1,h2,h3{font-family:var(--serif);font-weight:500;line-height:1.08;letter-spacing:-.005em;overflow-wrap:break-word}
svg{display:block}
.skip{position:absolute;left:12px;top:-80px;z-index:99;background:var(--green);color:var(--green-d);padding:12px 18px;font-weight:600}
.skip:focus{top:12px}
.ros{color:var(--gold);pointer-events:none}
.mark{width:28px;height:28px;color:var(--green);flex:none}
.wave{display:block;height:12px;background:var(--wave) repeat-x left center;opacity:.75}
.lab{font:400 12px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}

/* ---------- sidebar: the stub of the bond ---------- */
.side{position:fixed;inset:0 auto 0 0;width:288px;z-index:20;display:flex;flex-direction:column;padding:34px 28px 26px;background:var(--bg2);border-right:1px solid var(--line2);overflow-y:auto;overflow-x:hidden}
.side::after{content:"";position:absolute;top:0;bottom:0;right:5px;border-right:1px solid var(--line);pointer-events:none}
.seal{position:relative;padding-bottom:26px}
.ros-seal{position:absolute;width:300px;height:300px;left:-96px;top:-150px;opacity:.26}
.logo{position:relative;display:flex;align-items:center;gap:11px;min-height:44px;color:var(--ink);text-decoration:none;font:500 27px/1 var(--serif);letter-spacing:.005em}
.logo:hover{color:var(--ink)}
.logo-t{overflow-wrap:anywhere;min-width:0}
.tag{position:relative;margin-top:10px;font:400 11.5px/1.5 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}
.nav{display:flex;flex-direction:column;border-top:1px solid var(--line2)}
.nav a{display:flex;align-items:baseline;gap:14px;min-height:48px;padding:13px 0 11px;border-bottom:1px solid var(--line);color:var(--soft);text-decoration:none;font:500 15px/1.4 var(--sans)}
.nn{font:400 12px/1 var(--mono);color:var(--gold);letter-spacing:.08em}
.nl{flex:1;min-width:0}
.nav a::after{content:"";width:18px;height:1px;background:var(--line2);align-self:center;transition:width .2s,background .2s}
.nav a:hover{color:var(--ink)}
.nav a:hover::after{width:30px;background:var(--gold)}
.nav a[aria-current]{color:var(--green)}
.nav a[aria-current]::after{width:30px;background:var(--green)}
.side-cta{margin:28px 5px 0}
.colo{margin-top:auto;padding-top:34px}
.colo div{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:8px 0;border-top:1px solid var(--line)}
.colo dt{font:400 11px/1.4 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--mute)}
.colo dd{font:500 18px/1.2 var(--serif);color:var(--ink);text-align:right;white-space:nowrap}
.burger{display:none}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:48px;padding:11px 24px;border:0;border-radius:0;background:var(--green);color:var(--green-d);font:600 14px/1.25 var(--sans);letter-spacing:.06em;text-transform:uppercase;text-decoration:none;text-align:center;cursor:pointer;box-shadow:0 0 0 3px var(--gap),0 0 0 4px var(--green);transition:background .2s,box-shadow .2s,color .2s}
.btn:hover{background:#a6e8a6;color:var(--green-d);box-shadow:0 0 0 3px var(--gap),0 0 0 4px #a6e8a6}
.btn .arr{flex:none;transition:transform .2s}
.btn:hover .arr{transform:translateX(4px)}
.btn.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px var(--line2)}
.btn.ghost:hover{background:transparent;color:var(--green);box-shadow:inset 0 0 0 1px var(--green)}
.btn.sm{min-height:44px;padding:8px 16px;font-size:12.5px}
.btn[disabled]{opacity:.6;cursor:progress}

/* ---------- page shell ---------- */
.page{margin-left:288px;min-width:0}
main{display:block;max-width:1152px;padding:44px 56px 0;min-width:0}
.crumbs ol{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:0 12px;font:400 12px/1.4 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--mute)}
.crumbs li{display:flex;align-items:center;gap:12px;min-height:44px}
.crumbs li+li::before{content:"";width:16px;height:1px;background:var(--line2)}
.crumbs a{color:var(--gold);text-decoration:none;display:inline-block;padding:13px 0}
.crumbs a:hover{color:var(--green)}
.lead{font-size:18px;line-height:1.65;color:var(--soft);max-width:62ch}
.frame{--gap:var(--bg2);position:relative;padding:30px;min-width:0;clip-path:polygon(12px 0,calc(100% - 12px) 0,100% 12px,100% calc(100% - 12px),calc(100% - 12px) 100%,12px 100%,0 calc(100% - 12px),0 12px);border:1px solid var(--line2);
background:linear-gradient(135deg,var(--line2) 9.500px,transparent 9.500px) 0 0/22px 22px no-repeat,linear-gradient(225deg,var(--line2) 9.500px,transparent 9.500px) 100% 0/22px 22px no-repeat,linear-gradient(315deg,var(--line2) 9.500px,transparent 9.500px) 100% 100%/22px 22px no-repeat,linear-gradient(45deg,var(--line2) 9.500px,transparent 9.500px) 0 100%/22px 22px no-repeat,var(--bg2)}
.frame::before{content:"";position:absolute;inset:7px;border:1px solid var(--line);pointer-events:none}
.frame>*{position:relative}
.frame>.lab{margin-bottom:18px}

/* ---------- hero ---------- */
.hero{position:relative;padding:34px 0 64px}
.ros-hero{position:absolute;width:620px;height:620px;right:-190px;top:-210px;opacity:.2}
.hero>*:not(.ros){position:relative}
.eyebrow{display:flex;align-items:center;gap:14px;font:400 12.5px/1.4 var(--mono);letter-spacing:.22em;text-transform:uppercase;color:var(--gold)}
.eyebrow::before{content:"";width:44px;height:1px;background:var(--gold);flex:none}
.hero h1{margin-top:26px;font-weight:400;font-size:clamp(42px,6.200vw,92px);line-height:.98;letter-spacing:-.015em;max-width:15ch}
.hero h1 em{font-style:italic;color:var(--green);font-weight:400}
.hero-g{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:56px;align-items:start;margin-top:48px}
.hero-t,.hero-c{min-width:0}
.ticks{list-style:none;padding:0;margin-top:26px}
.ticks li{position:relative;padding:12px 0 12px 34px;border-top:1px solid var(--line);color:var(--soft);font-size:15.5px;line-height:1.55}
.ticks li:last-child{border-bottom:1px solid var(--line)}
.ticks li::before{content:"";position:absolute;left:4px;top:19px;width:14px;height:7px;border-left:1px solid var(--green);border-bottom:1px solid var(--green);transform:rotate(-45deg)}
.acts-h{display:flex;flex-wrap:wrap;gap:22px 26px;margin-top:36px;padding-left:4px;align-items:center}

/* ---------- code ---------- */
.codebox{min-width:0}
.codetabs{display:flex;flex-wrap:wrap;border-bottom:1px solid var(--line2)}
.codetabs button{min-height:44px;padding:0 18px;border:0;border-bottom:1px solid transparent;margin-bottom:-1px;background:none;color:var(--mute);font:400 14px/1 var(--mono);letter-spacing:.06em;cursor:pointer}
.codetabs button:hover{color:var(--ink)}
.codetabs button[aria-selected="true"]{color:var(--green);border-bottom-color:var(--green)}
pre.code{position:relative;margin:0;padding:52px 20px 20px;background:var(--pit);border:1px solid var(--line);color:#e4e1d6;font:400 14px/1.7 var(--mono);overflow-x:auto;max-width:100%;tab-size:2;-webkit-overflow-scrolling:touch}
.codebox pre.code{border-top:0}
pre.code code{font:inherit;white-space:pre}
pre.code .k{color:var(--green)}
pre.code .s{color:#e2d3a0}
pre.code .c{color:#98958a;font-style:italic}
.copy{position:absolute;top:0;right:0;min-width:64px;min-height:44px;padding:0 14px;border:0;border-left:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg2);color:var(--gold);font:400 11.5px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;cursor:pointer}
.copy:hover{color:var(--green)}

/* ---------- facts: a strip of denominations ---------- */
.notes{counter-reset:den;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-top:1px solid var(--line2);border-bottom:1px solid var(--line2);position:relative;margin:0 0 8px}
.notes::before,.notes::after{content:"";position:absolute;left:0;right:0;height:12px;background:var(--wave) repeat-x;opacity:.7}
.notes::before{top:5px}.notes::after{bottom:5px}
.den{counter-increment:den;display:flex;flex-direction:column;gap:10px;padding:44px 20px 40px;border-left:1px solid var(--line);min-width:0;position:relative}
.den:first-child{border-left:0;padding-left:2px}
.den::before{content:"0" counter(den);order:0;font:400 11.5px/1 var(--mono);letter-spacing:.14em;color:var(--green)}
.den dd{order:1;font:500 clamp(30px,3vw,44px)/1.05 var(--serif);color:var(--ink);overflow-wrap:anywhere}
.den dt{order:2;font-size:13px;line-height:1.45;color:var(--mute)}
.notes.big .den dd{font-size:clamp(32px,3.400vw,50px)}

/* ---------- sections ---------- */
.sec{padding:72px 0 0}
.sh{display:flex;align-items:center;gap:20px;margin-bottom:30px}
.sh .no{font:400 13px/1 var(--mono);letter-spacing:.14em;color:var(--green);flex:none}
.sh h2{font-size:clamp(30px,3.200vw,44px);min-width:0}
.sh .wave{flex:1;min-width:40px}
.grid{display:grid;border-top:1px solid var(--line2);border-left:1px solid var(--line)}
.cell{padding:28px 28px 30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-width:0}
.cell h3{font-size:25px;margin-bottom:10px}
.cell p{font-size:15px;line-height:1.65;color:var(--soft)}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g1{grid-template-columns:minmax(0,1fr)}
.num{display:block;font:italic 400 60px/.9 var(--serif);color:var(--gold);margin-bottom:18px}
.g1 .cell{display:grid;grid-template-columns:54px minmax(0,1fr);column-gap:8px;padding:22px 22px 24px 20px}
.g1 .cell .num{grid-row:1/3;font-size:44px;margin:0}
.g1 .cell h3,.g1 .cell p{grid-column:2}
.bens .cell{grid-template-columns:minmax(0,1fr);padding-left:38px;position:relative}
.bens .cell h3,.bens .cell p{grid-column:1}
.bens .cell::before{content:"";position:absolute;left:14px;top:31px;width:12px;height:6px;border-left:1px solid var(--green);border-bottom:1px solid var(--green);transform:rotate(-45deg)}
.bens .cell h3{font-size:22px}

/* ---------- prose ---------- */
.body{padding-top:72px}
.prose{max-width:740px;min-width:0;font-size:16.5px;line-height:1.75;color:var(--soft)}
.prose>*+*{margin-top:1.1em}
.prose h2{font-size:clamp(28px,2.800vw,38px);color:var(--ink);margin-top:1.9em;padding-top:26px;background:var(--wave) repeat-x left top;scroll-margin-top:84px}
.prose>h2:first-child{margin-top:0}
.prose h3{font-size:25px;color:var(--ink);margin-top:1.6em}
.prose strong{color:var(--ink);font-weight:600}
.prose ul,.prose ol{padding-left:22px}
.prose li{margin-top:.5em;padding-left:4px}
.prose li::marker{color:var(--gold);font-family:var(--mono);font-size:.85em}
.prose a{overflow-wrap:anywhere}
.prose :not(pre)>code,.keyout code{font:400 .94em var(--mono);color:#e2d3a0;background:var(--pit);border:1px solid var(--line);padding:1px 6px;overflow-wrap:anywhere}
.prose table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;line-height:1.5;border-top:1px solid var(--line2);border-bottom:1px solid var(--line2)}
.prose th{font:400 12px/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--gold);text-align:left;padding:14px 18px 12px 0;border-bottom:1px solid var(--line2);white-space:nowrap}
.prose td{padding:13px 18px 13px 0;border-bottom:1px solid var(--line);vertical-align:top;min-width:120px}
.prose tr:last-child td{border-bottom:0}
.prose blockquote{margin-left:0;margin-right:0;padding-left:22px;border-left:1px solid var(--gold);font:italic 400 22px/1.5 var(--serif);color:var(--ink)}
.prose pre.code{margin-top:1.3em}

/* ---------- faq ---------- */
.faqs{border-top:1px solid var(--line2);max-width:880px}
.faqs details{border-bottom:1px solid var(--line)}
.faqs summary{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px;padding:16px 0;cursor:pointer;list-style:none;font:500 23px/1.25 var(--serif);color:var(--ink)}
.faqs summary::-webkit-details-marker{display:none}
.faqs summary::after{content:"";flex:none;width:15px;height:15px;background:linear-gradient(var(--green),var(--green)) center/100% 1px no-repeat,linear-gradient(var(--green),var(--green)) center/1px 100% no-repeat;transition:transform .25s}
.faqs details[open] summary::after{transform:rotate(45deg)}
.faqs summary:hover{color:var(--green)}
.faqs details p{padding:0 40px 24px 0;font-size:15.5px;color:var(--soft);max-width:72ch}

/* ---------- closing call ---------- */
.close{position:relative;margin-top:96px;padding:72px 28px;border-top:1px solid var(--line2);border-bottom:1px solid var(--line2);text-align:center;overflow:hidden}
.close::before,.close::after{content:"";position:absolute;left:0;right:0;height:12px;background:var(--wave) repeat-x;opacity:.7}
.close::before{top:5px}.close::after{bottom:5px}
.ros-close{position:absolute;width:520px;height:520px;left:50%;top:50%;margin:-260px 0 0 -260px;opacity:.16}
.close-in{position:relative;display:flex;flex-direction:column;align-items:center;gap:18px}
.close-h{font:italic 400 clamp(32px,4vw,54px)/1.08 var(--serif);color:var(--ink);max-width:20ch}
.close-p{color:var(--soft);max-width:54ch;margin-bottom:14px}

/* ---------- key page ---------- */
.keyg{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,460px);grid-template-areas:"h f" "b f";gap:8px 64px;align-items:start}
.key-h{grid-area:h;min-width:0}.key-f{grid-area:f}.key-b{grid-area:b;min-width:0;margin-top:30px}
.key-h h1,.phead h1{font-weight:400;font-size:clamp(40px,5vw,72px);line-height:1;margin:14px 0 22px}
.form .tabs2{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line2);margin-bottom:22px}
.tabs2 button{min-height:46px;padding:6px 10px;border:0;background:none;color:var(--mute);font:400 13px/1.2 var(--mono);letter-spacing:.1em;text-transform:uppercase;cursor:pointer}
.tabs2 button+button{border-left:1px solid var(--line2)}
.tabs2 button[aria-selected="true"]{background:rgba(131,216,131,.12);color:var(--green);box-shadow:inset 0 -1px 0 var(--green)}
.msg{font-size:14px;line-height:1.5;padding:11px 14px;margin-bottom:16px;border-left:2px solid var(--green);background:rgba(131,216,131,.08);color:var(--ink)}
.msg:empty{display:none}
.msg.err{border-left-color:var(--err);background:rgba(255,161,143,.1);color:var(--err)}
.row{margin-bottom:18px}
.row label,.calc label{display:block;margin-bottom:8px;font:400 12px/1.4 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--gold)}
.row input,.row select,.row textarea,.calc input{display:block;width:100%;min-height:48px;padding:11px 14px;background:var(--pit);border:1px solid var(--line2);border-radius:0;color:var(--ink);font:400 16px/1.4 var(--sans);-webkit-appearance:none;appearance:none}
.row select{background-image:linear-gradient(45deg,transparent 50%,var(--gold) 50%),linear-gradient(135deg,var(--gold) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px;background-repeat:no-repeat;padding-right:40px!important}
.row textarea{min-height:170px;resize:vertical;padding:12px 14px!important}
.row input:focus,.row select:focus,.row textarea:focus,.calc input:focus{outline:2px solid var(--green);outline-offset:1px;border-color:var(--green)}
.note{font-size:13px;line-height:1.5;color:var(--mute);margin-top:8px}
.form .btn.ghost[data-gauth]{min-height:48px;text-transform:none;letter-spacing:.01em;font-weight:500;font-size:15px}
.form form .btn,.sup form .btn{width:calc(100% - 8px);margin:8px 4px 6px}
.form form>.note{text-align:center;margin-top:14px}
.keyout{display:none}
.keyout.on{display:block}
.keyout h3{font-size:28px;margin-bottom:14px}
.keyout p{font-size:14.5px;line-height:1.8;color:var(--soft);margin-top:12px}
.keyout strong{color:var(--ink);font-weight:600}
.keybox{display:flex;align-items:center;gap:12px;padding:8px 8px 8px 14px;border:1px dashed var(--gold);background:var(--pit)}
.keybox span{flex:1;min-width:0;font:400 14px/1.5 var(--mono);color:var(--green);word-break:break-all}
.keybox .btn{box-shadow:none;flex:none}
.acts{display:flex;flex-wrap:wrap;gap:14px;margin-top:20px;padding:4px}
.mut{color:var(--mute)}

/* ---------- pricing ---------- */
.phead{padding-bottom:40px}
.pg{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:56px;align-items:start}
.pg-c,.pg-e{min-width:0}
.pg-c>.btn{margin:30px 4px 0}
.calc{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.calc>div{min-width:0}
.calc>div:last-child{grid-column:1/-1;padding-top:20px;border-top:1px solid var(--line)}
.calc output{display:block;font:500 clamp(44px,5vw,64px)/1 var(--serif);color:var(--green);overflow-wrap:anywhere}

/* ---------- docs / article ---------- */
.read{display:grid;grid-template-columns:minmax(0,1fr) 248px;gap:64px;align-items:start}
.read-m{min-width:0}
.read .phead{padding-bottom:8px}
.read .body{padding-top:40px}
.read-a{position:sticky;top:36px;max-height:calc(100vh - 72px);overflow-y:auto;padding:4px 4px 8px 0}
.toc-in{display:none}
.toc .lab{padding-bottom:14px;border-bottom:1px solid var(--line2)}
.toc ol{list-style:none;padding:0;counter-reset:t}
.toc li{counter-increment:t;border-bottom:1px solid var(--line)}
.toc a{display:flex;gap:12px;align-items:baseline;min-height:44px;padding:11px 0;color:var(--soft);text-decoration:none;font-size:14px;line-height:1.45}
.toc a::before{content:counter(t,decimal-leading-zero);font:400 11.5px/1 var(--mono);color:var(--gold);flex:none}
.toc a:hover{color:var(--green)}
.sidecard{margin-top:30px;padding:22px 20px 24px;border:1px solid var(--line2);background:var(--bg2);--gap:var(--bg2)}
.sidecard-h{font:500 23px/1.15 var(--serif);color:var(--ink)}
.sidecard p+p{font-size:13.5px;line-height:1.55;color:var(--mute);margin-top:8px}
.sidecard .btn{margin:22px 4px 0;width:calc(100% - 8px)}
.date{margin-top:18px;font:400 12px/1.4 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--mute)}
.date time{color:var(--gold)}
.take{margin-top:30px;max-width:740px}
.take .ticks{margin-top:0}
.take .ticks li:last-child{border-bottom:0;padding-bottom:0}
.read .faq{padding-top:64px}

/* ---------- support / legal / 404 ---------- */
.supg{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:56px;align-items:start}
.sup form{margin-top:0!important}.supg .sidecard{max-width:380px;margin-top:8px}
.sup [data-support-msg]{font-size:14.5px;color:var(--green);min-height:1.5em}
.legal{padding-top:8px}
.nf{position:relative;padding:60px 0 40px;min-height:60vh}
.nf>*:not(.ros){position:relative}
.nf-n{font:italic 400 clamp(120px,20vw,260px)/.8 var(--serif);color:transparent;-webkit-text-stroke:1px var(--gold);margin-bottom:30px}
.nf h1{font-size:clamp(36px,4.500vw,60px);font-weight:400;margin-bottom:18px}

/* ---------- footer ---------- */
.foot{margin-top:96px;padding:0 56px 44px;max-width:1152px}
.close+.foot,.pg-support+.foot{margin-top:72px}
.foot-in{display:grid;grid-template-columns:auto minmax(0,1fr);gap:8px 40px;align-items:center;padding-top:26px}
.foot-b{display:flex;align-items:center;gap:10px;font:500 22px/1 var(--serif);color:var(--ink)}
.foot-l{display:flex;flex-wrap:wrap;gap:0 26px;justify-content:flex-end}
.foot-l a{display:inline-flex;align-items:center;min-height:44px;color:var(--soft);text-decoration:none;font-size:14px}
.foot-l a:hover{color:var(--green)}
.legal-n{grid-column:1/-1;font-size:13px;line-height:1.6;color:var(--mute);padding-top:14px;border-top:1px solid var(--line)}

/* ---------- responsive ---------- */
@media (max-width:1280px){
main{padding:36px 40px 0}.foot{padding:0 40px 40px}
.hero-g,.pg,.supg{grid-template-columns:minmax(0,1fr);gap:44px}
.read{grid-template-columns:minmax(0,1fr)}.read-a{display:none}.toc-in{display:block;margin-top:30px;max-width:740px}
.keyg{grid-template-columns:minmax(0,1fr);grid-template-areas:"h" "f" "b";gap:0}.key-f{margin-top:28px;max-width:560px}
.supg .sidecard{display:none}.supg .phead{padding-bottom:0}
.g3{grid-template-columns:repeat(2,minmax(0,1fr))}
.steps{grid-template-columns:minmax(0,1fr)}
.steps .cell{display:grid;grid-template-columns:64px minmax(0,1fr);column-gap:10px}
.steps .num{grid-row:1/3;margin:0;font-size:52px}
.steps .cell h3,.steps .cell p{grid-column:2}
.notes{grid-template-columns:repeat(6,minmax(0,1fr))}
.den{grid-column:span 2;border-top:1px solid var(--line)}
.den:nth-child(-n+2){grid-column:span 3;border-top:0}
.den:nth-child(3){border-left:0;padding-left:2px}
.den:nth-child(n+3){padding-top:26px}
.den:nth-child(-n+2){padding-bottom:26px}
}
@media (max-width:960px){
html{scroll-padding-top:76px}
.side{position:sticky;inset:0 auto auto auto;width:auto;flex-direction:row;align-items:center;gap:10px;padding:8px 14px 8px 16px;border-right:0;border-bottom:1px solid var(--line2);overflow:visible;min-height:62px}
.side::after{top:auto;bottom:-5px;left:0;right:0;border-right:0;border-bottom:1px solid var(--line)}
.seal{padding:0;min-width:0;flex:1}
.ros-seal,.tag,.colo{display:none}
.logo{font-size:23px;gap:9px}
.side-cta{margin:0 4px 0 0;min-height:44px;padding:8px 14px;font-size:12px;letter-spacing:.04em;flex:none;order:2;box-shadow:none}
.side-cta .arr{display:none}
.burger{order:3;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:7px;width:44px;height:44px;flex:none;padding:0;background:none;border:1px solid var(--line2);cursor:pointer}
.burger span{width:18px;height:1px;background:var(--ink)}
.nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--bg2);border-top:1px solid var(--line2);border-bottom:1px solid var(--line2);padding:4px 18px 12px;box-shadow:0 24px 40px rgba(0,0,0,.6)}
.nav.open{display:flex}
.nav a{min-height:50px}
.page{margin-left:0}
main{padding:22px 20px 0}.foot{padding:0 20px 32px;margin-top:72px}
.hero{padding:22px 0 48px}
.ros-hero{width:420px;height:420px;right:-200px;top:-150px;opacity:.16}
.hero-g{margin-top:30px}
.sec,.body{padding-top:56px}
.frame{padding:24px 20px}
.close{margin-top:72px;padding:60px 16px}
.foot-in{grid-template-columns:minmax(0,1fr)}.foot-l{justify-content:flex-start}
}
@media (max-width:640px){
.g3,.g2{grid-template-columns:minmax(0,1fr)}
.cell{padding:22px 18px 24px}
.steps .cell{grid-template-columns:50px minmax(0,1fr)}
.steps .num{font-size:44px}
.sh{flex-wrap:wrap;gap:8px 14px}.sh .wave{flex:0 0 100%;order:3}
.lead{font-size:16.5px}
.notes{grid-template-columns:repeat(2,minmax(0,1fr))}
.den,.den:nth-child(-n+2){grid-column:span 1;border-top:1px solid var(--line);padding:22px 12px 22px 14px}
.den:first-child{grid-column:1/-1;border-top:0;padding:34px 2px 22px}
.den:nth-child(3){border-left:1px solid var(--line);padding-left:14px}
.den:nth-child(even){border-left:0;padding-left:2px}
.den:nth-child(n+4){padding-bottom:32px}
.calc{grid-template-columns:minmax(0,1fr)}
.faqs summary{font-size:20px}
.faqs details p{padding-right:0}
.acts-h{gap:20px}
.acts-h .btn{width:calc(100% - 8px)}
.keybox{flex-direction:column;align-items:stretch}
pre.code{font-size:13px;padding:50px 14px 16px}
.g1 .cell{grid-template-columns:44px minmax(0,1fr)}
.bens .cell{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:400px){.side .mark{display:none}.logo{font-size:21px}.side-cta{padding:8px 11px}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;animation:none!important}html{scroll-behavior:auto}}