:root{--ink:#0d2350;--mut:#3d4f78;--bg:#e6ecf6;--page:#fcfdff;--tint:#eef3fb;--cob:#1b4fb5;--cobd:#143d8f;--line:#b9c6de;--code:#0b1a3a;--mark:#ffe066;--ch:176px;--sp:60px;
--f:"Anonymous Pro","Courier New",Courier,monospace;--d:"Zilla Slab",Rockwell,Georgia,serif;--m:"IBM Plex Mono",Consolas,Menlo,monospace}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--sp) + 20px)}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.62 var(--f);overflow-x:hidden;
background-image:linear-gradient(rgba(13,35,80,.045) 1px,transparent 1px);background-size:100% 28px}
[hidden]{display:none!important}
img,svg{max-width:100%}
a{color:var(--cob);text-decoration-thickness:1.5px;text-underline-offset:3px}
a:hover{color:var(--ink)}
:focus-visible{outline:3px solid #ff9d00;outline-offset:2px}
h1,h2,h3,h4{font-family:var(--d);font-weight:700;line-height:1.14;margin:0;overflow-wrap:break-word}
h1{font-size:clamp(2rem,4.3vw,3.35rem);letter-spacing:-.01em}
h2{font-size:clamp(1.45rem,2.5vw,1.9rem);display:table;padding-bottom:.4rem;border-bottom:4px double var(--ink);margin-bottom:1.5rem}
h3{font-size:1.2rem;font-weight:600}
p{margin:0 0 1rem}
code{font-family:var(--m);font-size:.88em}
.skip{position:absolute;left:-9999px;top:0;z-index:99;background:var(--mark);color:var(--ink);padding:12px 16px;font-weight:700}
.skip:focus{left:8px;top:8px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:10px 22px;background:var(--cob);color:#fff;border:2px solid var(--ink);border-radius:0;font:700 1rem/1.2 var(--f);letter-spacing:.02em;text-decoration:none;cursor:pointer;text-align:center;transition:background .15s,color .15s}
.btn:hover{background:var(--ink);color:#fff}
.btn.ghost{background:var(--page);color:var(--ink)}
.btn.ghost:hover{background:var(--tint);color:var(--ink)}
.btn.mark{background:var(--mark);color:var(--ink)}
.btn.mark:hover{background:#fff;color:var(--ink)}
.btn.sm{min-height:44px;padding:8px 14px;font-size:.92rem}
.acts{display:flex;flex-wrap:wrap;gap:12px;margin:0}

/* cover header */
.cover{position:sticky;top:calc(-1 * var(--ch));z-index:50;background:var(--cob);color:#fff;border-bottom:3px solid var(--ink);
background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 3px),repeating-linear-gradient(90deg,rgba(0,0,0,.06) 0 1px,transparent 1px 3px)}
.cover-in{height:var(--ch);max-width:1228px;margin:0 auto;padding:22px 24px 18px;display:flex;align-items:stretch;gap:28px;overflow:hidden}
.label{flex:1 1 auto;min-width:0;background:var(--page);color:var(--ink);border:2px solid var(--ink);padding:12px 20px 14px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:inset 0 0 0 4px var(--page),inset 0 0 0 5px var(--line)}
.lb-top{display:flex;justify-content:space-between;gap:12px;margin:0;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;color:var(--mut)}
.lb-title{margin:0;font:700 clamp(1.7rem,3.7vw,2.85rem)/1.04 var(--d);letter-spacing:-.01em;overflow-wrap:break-word}
.ctl{flex:0 0 auto;display:flex;flex-direction:column;justify-content:flex-end;gap:4px;font:400 .8rem/1.4 var(--m);color:#dfe8fb;text-align:right;max-width:330px}
.ctl span{border-top:1px solid rgba(255,255,255,.4);padding-top:4px;overflow-wrap:anywhere}
.spine{position:relative;height:var(--sp);max-width:1228px;margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:20px;border-top:1px solid rgba(255,255,255,.35)}
.brand{display:inline-flex;align-items:center;gap:10px;min-width:0;min-height:44px;color:#fff;font:700 1.05rem/1 var(--f);text-decoration:none;letter-spacing:.01em}
.brand span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.brand:hover{color:var(--mark)}
.mk{flex:0 0 auto;border:1.5px solid var(--ink)}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;color:#fff;text-decoration:none;font-size:.98rem}
.nav a:hover{color:var(--mark)}
.nav a[aria-current]{text-decoration:underline double;text-underline-offset:6px;font-weight:700}
.spine .key{min-height:44px;padding:8px 18px;white-space:nowrap}
.burger{display:none;flex:0 0 44px;width:44px;height:44px;padding:11px 9px;background:transparent;border:2px solid #fff;cursor:pointer;flex-direction:column;justify-content:space-between}
.burger i{display:block;height:2px;background:#fff}

/* layout */
main{display:block;max-width:1228px;margin:0 auto;padding:44px 24px 72px;counter-reset:pgc}
main>*{min-width:0}
.lead{font-size:1.12rem;color:var(--mut);max-width:62ch}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:2px 10px;font-size:.9rem;margin-bottom:18px;color:var(--mut)}
.crumbs a{display:inline-flex;align-items:center;min-height:44px}
.crumbs b{font-weight:400}
.phead{margin-bottom:40px;padding-left:22px;border-left:6px solid var(--ink)}
.phead h1{max-width:20ch;margin-bottom:16px}
.phead .lead{margin:0}
.phead.narrow{max-width:1080px;margin-left:auto;margin-right:auto}
.phead.narrow h1{max-width:none}

/* revision page panel */
.pg{position:relative;background:var(--page);border:1.5px solid var(--ink);padding:0 40px 40px;margin:0 0 44px;counter-increment:pgc}
.pg::before{content:"";position:absolute;top:60px;bottom:28px;width:6px;background:var(--ink)}
.pg.l::before{left:-17px}
.pg.r::before{right:-17px}
.pg.l{margin-right:7%}
.pg.r{margin-left:7%}
.pg.flat{margin-left:0;margin-right:0}
.pg.flat::before{left:-17px;right:auto}
.pg.one{max-width:860px;margin-left:auto;margin-right:auto}
.slug{display:flex;align-items:center;gap:14px;height:44px;margin:0 -40px 30px;padding:0 40px;border-bottom:1px solid var(--line);font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--mut)}
.slug i{flex:1;border-top:1px dashed var(--line)}
.slug span:first-child{color:var(--ink);font-weight:700}

/* numbered items */
.items{list-style:none;margin:0;padding:0;display:grid;gap:0;counter-reset:it}
.items li{counter-increment:it;min-width:0;padding:20px 22px 12px 0;border-top:1.5px solid var(--ink);position:relative}
.items li::before{content:counter(pgc) "." counter(it);display:block;font:700 .86rem/1 var(--f);letter-spacing:.1em;color:var(--cob);margin-bottom:10px}
.items h3{margin-bottom:8px}
.items p{color:var(--mut);margin:0 0 8px;font-size:1rem}
.items.g3{grid-template-columns:repeat(3,minmax(0,1fr));column-gap:28px}
.items.g2{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:40px}
.items.proc{grid-template-columns:repeat(3,minmax(0,1fr));column-gap:28px}
.items.proc li{padding-top:64px}
.items.proc li::before{content:counter(it);position:absolute;top:14px;left:0;font:700 2.6rem/1 var(--d);color:var(--ink);letter-spacing:0;margin:0}
.items.proc li::after{content:"";position:absolute;top:36px;left:44px;right:22px;border-top:2px dotted var(--mut)}

/* hero */
.hero{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:48px;align-items:start;margin-bottom:44px}
.hero-t{min-width:0;padding-top:6px}
.eyebrow{margin:0 0 18px;font-size:.86rem;letter-spacing:.14em;text-transform:uppercase;font-weight:700}
.eyebrow span{background:linear-gradient(transparent 12%,var(--mark) 12% 88%,transparent 88%);padding:2px 8px;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.hero h1{margin-bottom:20px}
.hero .lead{margin-bottom:22px}
.ticks{list-style:none;margin:0 0 28px;padding:0;border-top:1.5px solid var(--ink)}
.ticks li{position:relative;padding:10px 0 10px 34px;border-bottom:1px solid var(--line)}
.ticks li::before{content:"";position:absolute;left:4px;top:1.05em;width:14px;height:7px;border-left:2.5px solid var(--cob);border-bottom:2.5px solid var(--cob);transform:rotate(-45deg)}
.hero-c{min-width:0;margin-top:56px;position:relative;background:var(--page);border:1.5px solid var(--ink);padding:0 18px 18px}
.hero-c::before{content:"";position:absolute;top:60px;bottom:18px;right:-17px;width:6px;background:var(--ink)}
.hc-h{display:flex;align-items:center;gap:12px;height:44px;margin:0;font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--mut)}
.hc-h span:first-child{color:var(--ink);font-weight:700}
.hc-h i{flex:1;border-top:1px dashed var(--line)}

/* code */
.codebox{min-width:0;background:var(--code);border:1.5px solid var(--ink)}
.codetabs{display:flex;border-bottom:1px solid #2a3f73;overflow-x:auto}
.codetabs button{min-height:44px;padding:0 18px;background:transparent;border:0;border-right:1px solid #2a3f73;color:#b9c8ea;font:400 .92rem var(--m);cursor:pointer;white-space:nowrap}
.codetabs button[aria-selected="true"]{background:var(--mark);color:var(--ink);font-weight:600}
pre.code{position:relative;margin:0 0 1.4rem;padding:52px 18px 18px;background:var(--code);color:#e3ebfc;border:1.5px solid var(--ink);font:400 .86rem/1.6 var(--m);overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch;tab-size:2}
.codebox pre.code{border:0;margin:0}
pre.code code{font-size:inherit;white-space:pre}
pre.code .k{color:#8fbaff}
pre.code .s{color:#ffe08a}
pre.code .c{color:#9aa9cf;font-style:italic}
.copy{position:absolute;top:6px;right:6px;min-height:40px;min-width:64px;padding:0 12px;background:transparent;border:1px solid #5d74ad;color:#e3ebfc;font:400 .8rem var(--m);cursor:pointer}
.copy:hover{background:var(--mark);color:var(--ink);border-color:var(--mark)}

/* spec facts */
.spec{margin:0;display:grid}
.spec div{min-width:0}
.spec dt{font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mut)}
.spec dd{margin:0;font:700 1.5rem/1.15 var(--d);overflow-wrap:break-word}
.spec.strip{grid-template-columns:repeat(5,minmax(0,1fr));background:var(--page);border:1.5px solid var(--ink);margin-bottom:44px}
.spec.strip div{padding:18px 20px;border-left:1px solid var(--ink);display:flex;flex-direction:column-reverse;justify-content:flex-end;gap:8px}
.spec.strip div:first-child{border-left:0;background:var(--cob);color:#fff}
.spec.strip div:first-child dt{color:#e6eeff}
.spec.tbl{background:var(--page);border:1.5px solid var(--ink)}
.spec.tbl div{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:16px 22px;border-top:1px solid var(--line)}
.spec.tbl div:first-child{border-top:0;background:var(--cob);color:#fff}
.spec.tbl div:first-child dt{color:#e6eeff}
.spec.tbl dd{text-align:right;font-size:1.65rem}

/* prose */
.prose{min-width:0;max-width:78ch;counter-reset:sec}
.prose>*:first-child{margin-top:0}
.prose h2{margin-top:2.6rem;margin-bottom:1.1rem;counter-increment:sec}
.prose h2::before{content:"\00a7\00a0" counter(sec);display:block;font:700 .82rem/1 var(--f);letter-spacing:.12em;color:var(--cob);margin-bottom:8px}
.prose h3{margin:1.9rem 0 .7rem}
.prose h4{font-size:1.05rem;margin:1.4rem 0 .5rem}
.prose ul,.prose ol{padding-left:1.5rem;margin:0 0 1.1rem}
.prose li{margin-bottom:.4rem}
.prose li::marker{color:var(--cob);font-weight:700}
.prose p code,.prose li code,.prose td code{background:var(--tint);border:1px solid var(--line);padding:1px 5px;overflow-wrap:anywhere}
.prose table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:0 0 1.4rem;font-size:.95rem}
.prose th,.prose td{border:1px solid var(--ink);padding:9px 14px;text-align:left;vertical-align:top}
.prose th{background:var(--ink);color:#fff;font-weight:700}
.prose tr:nth-child(even) td{background:var(--tint)}
.prose.long{font-size:1.06rem;line-height:1.72;max-width:none}

/* faq */
.faq{border-top:1.5px solid var(--ink);counter-reset:q}
.faq details{border-bottom:1px solid var(--ink);counter-increment:q}
.faq summary{display:flex;align-items:center;gap:16px;min-height:56px;padding:12px 44px 12px 0;cursor:pointer;list-style:none;position:relative;font:600 1.12rem/1.3 var(--d)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:counter(q,decimal-leading-zero);flex:0 0 auto;font:700 .84rem var(--f);color:var(--cob);letter-spacing:.08em}
.faq summary::after{content:"";position:absolute;right:8px;top:50%;width:16px;height:16px;margin-top:-8px;background:linear-gradient(var(--ink),var(--ink)) center/100% 2.5px no-repeat,linear-gradient(var(--ink),var(--ink)) center/2.5px 100% no-repeat}
.faq details[open] summary::after{background:linear-gradient(var(--ink),var(--ink)) center/100% 2.5px no-repeat}
.faq details[open] summary{background:var(--tint)}
.faq details p{margin:0;padding:14px 0 20px 40px;color:var(--mut);max-width:74ch}

/* end cta */
.endcta{display:flex;align-items:center;justify-content:space-between;gap:28px;background:var(--cob);color:#fff;border:2px solid var(--ink);padding:34px 40px;margin-top:8px;
background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 3px)}
.endcta h2{border-bottom-color:#fff;margin-bottom:12px}
.endcta p{margin:0;color:#eaf0ff;max-width:60ch}
.endcta .btn{flex:0 0 auto;min-height:56px;padding:12px 28px;font-size:1.06rem}

/* key page */
.keygrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,460px);grid-template-areas:"h f" "b f";gap:8px 56px;align-items:start;margin-bottom:52px}
.kg-h{grid-area:h;min-width:0;padding-left:22px;border-left:6px solid var(--ink)}
.kg-h h1{margin-bottom:14px}
.kg-f{grid-area:f;min-width:0}
.kg-b{grid-area:b;list-style:none;margin:24px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px;counter-reset:b}
.kg-b li{counter-increment:b;border-top:1.5px solid var(--ink);padding:14px 0 6px;min-width:0}
.kg-b li::before{content:counter(b,decimal-leading-zero);font:700 .82rem var(--f);color:var(--cob);letter-spacing:.1em}
.kg-b h3{font-size:1.08rem;margin:4px 0 6px}
.kg-b p{font-size:.96rem;color:var(--mut);margin:0 0 8px}
.sheet{position:relative;background:var(--page);border:2px solid var(--ink);padding:26px 28px 24px;box-shadow:10px 10px 0 var(--cob)}
.sheet::before{content:"";position:absolute;left:-2px;right:-2px;top:-2px;height:10px;background:var(--ink)}
.form{min-width:0;padding-top:6px}
.tabs2{display:grid;grid-template-columns:1fr 1fr;border:2px solid var(--ink);margin-bottom:18px}
.tabs2 button{min-height:46px;background:var(--page);border:0;color:var(--ink);font:700 .98rem var(--f);cursor:pointer}
.tabs2 button+button{border-left:2px solid var(--ink)}
.tabs2 button[aria-selected="true"]{background:var(--ink);color:#fff}
.msg{margin:0 0 14px;padding:10px 14px;border:1.5px solid var(--cob);background:var(--tint);font-size:.96rem}
.msg:empty{display:none}
.msg.err{border-color:#a3161d;background:#fdecec;color:#8a1016;border-left-width:6px}
.row{margin-bottom:14px}
.row label,.calc label{display:block;font-weight:700;font-size:.9rem;letter-spacing:.06em;text-transform:uppercase;margin-bottom:6px}
input,select,textarea{width:100%;min-height:48px;padding:10px 12px;background:var(--tint);border:1.5px solid var(--ink);border-radius:0;color:var(--ink);font:400 1rem var(--f)}
textarea{min-height:150px;resize:vertical;line-height:1.5}
input:focus,select:focus,textarea:focus{background:#fff;outline:3px solid #ff9d00;outline-offset:1px}
.note{font-size:.88rem;color:var(--mut);margin:8px 0 0}
.form .btn[data-submit]{width:100%;min-height:54px;font-size:1.04rem;margin-top:4px}
.form .btn.ghost[data-gauth]{min-height:50px}
.keyout{display:none}
.keyout.on{display:block}
.keyout h3{margin-bottom:10px}
.keybox{display:flex;align-items:center;gap:10px;background:var(--code);color:#ffe08a;border:1.5px solid var(--ink);padding:8px 8px 8px 14px;font:400 .9rem var(--m)}
.keybox span{flex:1;min-width:0;overflow-wrap:anywhere}
.keybox .btn{flex:0 0 auto;background:var(--mark);color:var(--ink)}
.keyout p{margin:12px 0;overflow-wrap:anywhere}
.keyout .acts{margin-top:14px;gap:8px}
.mut{color:var(--mut)}

/* pricing */
.pricegrid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start;margin-bottom:52px}
.pg-s,.pg-c{min-width:0}
.pg-c{background:var(--page);border:2px solid var(--ink);padding:26px 28px;box-shadow:10px 10px 0 var(--cob)}
.pg-c h2{margin-bottom:20px}
.calc{display:grid;gap:16px;margin-bottom:22px}
.calc>div{min-width:0}
.calc output{display:block;font:700 2.5rem/1.1 var(--d);color:var(--cob);padding:10px 0 12px;border-bottom:4px double var(--ink);overflow-wrap:anywhere}

/* docs */
.docgrid{display:grid;grid-template-columns:270px minmax(0,1fr);gap:56px;align-items:start}
.dg-a{position:sticky;top:calc(var(--sp) + 24px);min-width:0;max-height:calc(100vh - var(--sp) - 40px);overflow:auto}
.dg-m{min-width:0}
.toc{margin-bottom:24px}
.toc-h{font-weight:700;font-size:.82rem;letter-spacing:.14em;text-transform:uppercase;margin:0;padding-bottom:8px;border-bottom:4px double var(--ink)}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:t}
.toc li{counter-increment:t;border-bottom:1px dotted var(--mut)}
.toc a{display:flex;align-items:baseline;gap:10px;min-height:44px;padding:10px 0;color:var(--ink);text-decoration:none;font-size:.95rem;line-height:1.35}
.toc a::before{content:counter(t) ".";flex:0 0 1.8em;color:var(--cob);font-weight:700}
.toc a:hover span{text-decoration:underline}
.toc.inline{display:none;background:var(--page);border:1.5px solid var(--ink);padding:18px 20px 8px}
.sidecta{background:var(--page);border:1.5px solid var(--ink);padding:18px 18px 20px}
.sidecta .sc-h{font:700 1.15rem/1.2 var(--d);margin-bottom:8px}
.sidecta p{font-size:.93rem;color:var(--mut)}
.sidecta .sc-h{color:var(--ink)}
.sidecta .btn{width:100%}

/* article */
.artgrid{display:grid;grid-template-columns:minmax(0,760px) 260px;gap:60px;justify-content:center;align-items:start}
.ag-m{min-width:0;background:var(--page);border:1.5px solid var(--ink);padding:36px 48px 44px;position:relative}
.ag-m::before{content:"";position:absolute;top:36px;bottom:36px;left:-17px;width:6px;background:var(--ink)}
.ag-a{position:sticky;top:calc(var(--sp) + 24px);min-width:0;max-height:calc(100vh - var(--sp) - 40px);overflow:auto}
.meta{font-size:.84rem;letter-spacing:.1em;text-transform:uppercase;color:var(--mut);margin-bottom:22px}
.take{background:var(--tint);border:1.5px solid var(--ink);border-left-width:8px;padding:22px 24px 12px;margin-bottom:34px}
.take h2{font-size:1.25rem;border-bottom-width:3px;margin-bottom:14px}
.take ul{margin:0;padding-left:1.3rem}
.take li{margin-bottom:.6rem}
.take li::marker{color:var(--cob)}
.artfaq{margin-top:48px}

/* 404 */
.nf{max-width:760px;margin:40px auto;background:var(--page);border:2px solid var(--ink);padding:40px;box-shadow:10px 10px 0 var(--cob)}
.nf-n{font:700 clamp(4rem,14vw,8rem)/.9 var(--d);color:var(--cob);margin:0 0 16px;text-decoration:line-through;text-decoration-thickness:6px;text-decoration-color:var(--ink)}
.nf h1{margin-bottom:14px}
.nf .lead{margin-bottom:26px}

/* support */
.prose.sup{max-width:none}
.prose.sup form{max-width:640px}
.prose.sup .btn{min-width:180px}

/* footer */
.foot{background:var(--ink);color:#dbe4f7;border-top:6px solid var(--cob)}
.ft-in{max-width:1228px;margin:0 auto;padding:40px 24px 28px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1.4fr) auto;gap:36px;align-items:start}
.ft-b p{margin:10px 0 0;font-size:.95rem;color:#c3d0ee}
.ft-l{display:flex;flex-wrap:wrap;gap:0 22px;min-width:0}
.ft-l a{display:inline-flex;align-items:center;min-height:44px;color:#fff;text-decoration:underline;text-decoration-color:#6f86bd;font-size:.96rem}
.ft-l a:hover{color:var(--mark)}
.legal{max-width:1228px;margin:0 auto;padding:16px 24px 30px;border-top:1px dashed #4a5f93;font-size:.84rem;color:#c3d0ee}

@media (max-width:1040px){
.nav a{padding:0 8px;font-size:.92rem}
.ctl{display:none}
.docgrid{grid-template-columns:230px minmax(0,1fr);gap:40px}
.artgrid{grid-template-columns:minmax(0,1fr)}
.ag-a{position:static;max-height:none}
.ag-a .toc{display:none}
.toc.inline{display:block;margin-bottom:30px}
}
@media (max-width:900px){
:root{--ch:104px;--sp:58px}
.cover-in{padding:12px 16px}
.label{padding:8px 14px 10px;box-shadow:none}
.lb-top{font-size:.7rem}
.lb-title{font-size:clamp(1.05rem,4.6vw,1.7rem);line-height:1.12}
.spine{padding:0 16px;gap:10px}
.burger{display:flex}
.spine .key{margin-left:auto;padding:8px 12px;font-size:.92rem}
.nav{display:none;position:absolute;left:0;right:0;top:100%;margin:0;background:var(--ink);border-bottom:3px solid var(--mark);flex-direction:column;align-items:stretch;gap:0;padding:6px 16px 12px}
.nav.open{display:flex}
.nav a{min-height:48px;padding:0 4px;border-bottom:1px dashed #4a5f93;font-size:1.02rem}
main{padding:28px 16px 56px}
.hero,.keygrid,.pricegrid,.docgrid{grid-template-columns:minmax(0,1fr);gap:28px}
.keygrid{grid-template-areas:"h" "f" "b";gap:22px}
.hero-c{margin-top:0}
.hero-c::before,.pg.r::before{right:-11px;width:5px}
.pg.l::before,.pg.flat::before,.ag-m::before{left:-11px;right:auto;width:5px}
.pg,.pg.l,.pg.r{margin-left:0;margin-right:0;padding:0 20px 26px;margin-bottom:32px}
.slug{margin:0 -20px 24px;padding:0 20px}
.items.g3,.items.proc{grid-template-columns:minmax(0,1fr)}
.items.g2{grid-template-columns:minmax(0,1fr)}
.items li{padding-right:0}
.items.proc li::after{right:0}
.spec.strip{grid-template-columns:repeat(2,minmax(0,1fr))}
.spec.strip div{border-left:0;border-top:1px solid var(--ink);padding:14px 16px}
.spec.strip div:first-child{grid-column:1/-1;border-top:0}
.spec.strip div:nth-child(odd):not(:first-child){border-left:1px solid var(--ink)}
.spec dd{font-size:1.3rem}
.dg-a{position:static;max-height:none}
.dg-a .sidecta{display:none}
.toc.contents{background:var(--page);border:1.5px solid var(--ink);padding:18px 20px 8px;margin:0}
.endcta{flex-direction:column;align-items:stretch;padding:26px 20px}
.sheet,.pg-c,.nf{padding:24px 18px 20px;box-shadow:6px 6px 0 var(--cob);margin-right:6px}
.ag-m{padding:24px 20px 30px}
.take{padding:18px 16px 8px}
.phead,.kg-h{padding-left:14px;border-left-width:5px;margin-bottom:28px}
.kg-h{margin-bottom:0}
.kg-b{margin-top:0}
.ft-in{grid-template-columns:minmax(0,1fr);gap:22px;padding:32px 16px 22px}
.legal{padding:16px 16px 26px}
.faq details p{padding-left:0}
}
@media (max-width:520px){
body{font-size:16px}
.kg-b{grid-template-columns:minmax(0,1fr)}
.brand{font-size:.95rem}
.acts .btn{flex:1 1 100%}
.spec.tbl dd{font-size:1.3rem}
.spec.tbl div{padding:14px 16px}
}
@media (max-width:380px){
.brand span{max-width:104px}
.spine .key{padding:8px 9px;font-size:.86rem}
}
@media (prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
*{transition:none!important;animation:none!important}
}

.ntf-cn{font-size:11px;line-height:1.6;color:#71717a;text-align:center;margin:6px 0 0}
@media(prefers-color-scheme:dark){.ntf-cn{color:#8e8e97}}