:root{
--bg:#0c1820;--bg2:#081219;--snow:#dfe9ef;--mut:#9fb4c2;--ice:#8ecbf2;--line:rgba(170,210,238,.17);--line2:rgba(170,210,238,.38);
--paper:#e9eef0;--ink:#0e1d27;--ink2:#42586a;--deep:#0f5d8c;--inkline:rgba(14,29,39,.2);--sand:#e6c58f;
--disp:"Kaisei Tokumin","Hiragino Mincho ProN","Yu Mincho",Georgia,serif;
--text:"M PLUS 1","Hiragino Sans","Yu Gothic",system-ui,sans-serif;
--mono:"M PLUS 1 Code",ui-monospace,Menlo,Consolas,monospace;
--gut:80px}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:24px}
body{margin:0;background:var(--bg) linear-gradient(#10232f,var(--bg) 560px) no-repeat;color:var(--snow);font:400 17px/1.75 var(--text);-webkit-font-smoothing:antialiased;overflow-wrap:break-word}
h1,h2,h3,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:var(--ice);text-underline-offset:4px;text-decoration-thickness:1px}
a:hover{color:#fff}
:focus-visible{outline:2px solid var(--ice);outline-offset:3px}
.paper :focus-visible{outline-color:var(--deep)}
::selection{background:var(--ice);color:var(--ink)}
.skip{position:absolute;left:16px;top:-80px;z-index:20;background:var(--paper);color:var(--ink);padding:12px 18px;text-decoration:none}
.skip:focus{top:12px}
code,pre,kbd{font-family:var(--mono)}

/* tiny labels */
.eyebrow,.label,.crumbs,.stamp,.slip-h,dt,.row label,.calc label,.sec-n,.codetabs button,.copy,.tabs2 button{font:500 11.5px/1.5 var(--text);letter-spacing:.17em;text-transform:uppercase}

/* header */
.top{position:relative;z-index:5}
.top-in{max-width:1240px;margin:0 auto;padding:0 40px;height:78px;display:flex;align-items:center;gap:22px;position:relative}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--snow);text-decoration:none;font:500 17px/1 var(--disp);letter-spacing:.04em;white-space:nowrap}
.logo .mark{color:var(--ice);flex:none}
.rule{flex:1;height:1px;background:var(--line2);min-width:16px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 14px;color:var(--mut);text-decoration:none;font-size:14.5px;letter-spacing:.06em}
.nav a:hover{color:#fff}
.nav a[aria-current]{color:var(--snow)}
.nav a[aria-current]::before{content:"";position:absolute;left:50%;top:4px;width:6px;height:6px;margin-left:-3px;border-radius:50%;background:var(--ice)}
.burger{display:none;width:44px;height:44px;padding:0;background:none;border:0;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:7px}
.burger span{display:block;width:22px;height:1.5px;background:var(--snow);transition:transform .2s}
.burger[aria-expanded=true] span:first-child{transform:translateY(4.25px) rotate(45deg)}
.burger[aria-expanded=true] span:last-child{transform:translateY(-4.25px) rotate(-45deg)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 26px;background:var(--ice);color:#06131b;border:1px solid var(--ice);border-radius:0;font:500 15.5px/1.2 var(--text);letter-spacing:.04em;text-decoration:none;cursor:pointer;transition:background .18s,color .18s,border-color .18s}
a.btn:not(.ghost)::after{content:"";width:18px;height:1px;background:currentColor;margin-left:14px;transition:width .18s}
a.btn:not(.ghost):hover::after{width:28px}
.btn:hover{background:#fff;border-color:#fff;color:#06131b}
.btn.ghost{background:transparent;color:var(--snow);border-color:var(--line2)}
.btn.ghost:hover{background:transparent;border-color:var(--snow);color:#fff}
.btn.sm{min-height:44px;padding:0 16px;font-size:14px}
.btn[disabled]{opacity:.55;cursor:wait}
.paper .btn{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.paper .btn:hover{background:var(--deep);border-color:var(--deep);color:#fff}
.paper .btn.ghost{background:transparent;color:var(--ink);border-color:rgba(14,29,39,.5)}
.paper .btn.ghost:hover{background:transparent;border-color:var(--ink);color:var(--ink)}
.acts{display:flex;flex-wrap:wrap;gap:12px}

/* ridge + moon */
main{position:relative;display:block}
.ridge{position:absolute;top:0;left:0;width:100%;height:360px;pointer-events:none;z-index:0}
.ridge .moon{fill:#cfe6f6;opacity:.1}
.ridge .far{fill:none;stroke:var(--ice);stroke-opacity:.14;stroke-width:1}
.ridge .near{fill:none;stroke:var(--ice);stroke-opacity:.5;stroke-width:1.2;stroke-linecap:round;stroke-linejoin:round}
.ridge .wash{fill:url(#rg)}

/* page grid */
.page{position:relative;z-index:1;max-width:1240px;margin:0 auto;padding:0 40px;display:grid;grid-template-columns:minmax(0,1fr) 300px;column-gap:88px}
.hero{grid-column:1;grid-row:1;min-width:0;padding:104px 0 88px var(--gut)}
.rest{grid-column:1;grid-row:2;min-width:0;counter-reset:s}
.rail{grid-column:2;grid-row:1/span 2;align-self:start;position:sticky;top:0;padding:96px 0 32px;min-width:0}
h1{font:500 clamp(2.15rem,4.3vw,3.7rem)/1.14 var(--disp);letter-spacing:-.005em;color:#f3f8fb;text-wrap:balance}
.eyebrow{color:var(--ice);margin-bottom:28px;display:flex;align-items:center;gap:14px}
.eyebrow::before{content:"";width:36px;height:1px;background:var(--ice)}
.lead{margin-top:30px;max-width:38em;font-size:1.13rem;line-height:1.75;color:#c6d5de;font-weight:300}
.hero .acts{margin-top:40px}
.bullets{margin-top:34px;max-width:36em;border-top:1px solid var(--line)}
.bullets li{position:relative;padding:13px 0 13px 34px;border-bottom:1px solid var(--line);font-size:.97rem;line-height:1.6;color:var(--snow)}
.bullets li::before{content:"";position:absolute;left:4px;top:1.55em;width:14px;height:1px;background:var(--ice)}
.crumbs{color:var(--mut);margin-bottom:30px;display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px}
.crumbs span{width:26px;height:1px;background:var(--line2)}
.crumbs a{color:var(--ice);text-decoration:none;display:inline-flex;align-items:center;min-height:44px}
.crumbs b{font-weight:500;max-width:100%}
.stamp{margin-top:30px;color:var(--mut)}
.stamp time{color:var(--snow);margin-left:8px;font-family:var(--mono);letter-spacing:.08em}

/* sections */
.sec{display:grid;grid-template-columns:var(--gut) minmax(0,1fr);padding:76px 0 84px;border-top:1px solid var(--line);counter-increment:s}
.sec-n{color:var(--ice);font-family:var(--mono);letter-spacing:.12em;padding-top:10px}
.sec-n::before{content:counter(s,decimal-leading-zero);display:block}
.sec-n::after{content:"";display:block;width:1px;height:54px;background:var(--line2);margin:12px 0 0 9px}
.sec-b{min-width:0}
h2{font:500 clamp(1.55rem,2.5vw,2.05rem)/1.25 var(--disp);color:#f3f8fb;margin-bottom:36px;text-wrap:balance}
h3{font:500 1.14rem/1.4 var(--disp);color:#f3f8fb;letter-spacing:.01em}
.sec-b>p{max-width:36em;color:#c6d5de}

.feat{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 56px;counter-reset:f}
.feat li{counter-increment:f;border-top:1px solid var(--line);padding:22px 0 30px;min-width:0}
.feat li::before{content:counter(f,decimal-leading-zero);display:block;font:400 11.5px/1 var(--mono);letter-spacing:.14em;color:var(--mut);margin-bottom:14px}
.feat p,.uses p,.steps p{margin-top:8px;font-size:.95rem;line-height:1.7;color:var(--mut)}

.steps{counter-reset:st}
.steps li{counter-increment:st;display:grid;grid-template-columns:84px minmax(0,1fr);align-items:start;padding:26px 0 30px;border-top:1px solid var(--line);position:relative}
.steps li::before{content:counter(st);grid-row:1/span 2;font:400 3.1rem/1 var(--disp);color:var(--ice)}
.steps li>*{grid-column:2;min-width:0}
.steps li:nth-child(2){margin-left:9%}
.steps li:nth-child(3){margin-left:18%}
.steps li:nth-child(n+4){margin-left:18%}

.uses{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:44px 56px}
.uses li{min-width:0;padding-left:22px;border-left:1px solid var(--line2)}
.uses li:nth-child(even){transform:translateY(46px)}
.s-uses{padding-bottom:130px}

.take{counter-reset:tk;max-width:44em}
.take li{counter-increment:tk;display:grid;grid-template-columns:52px minmax(0,1fr);padding:16px 0;border-top:1px solid var(--line);color:var(--snow);line-height:1.65}
.take li:last-child{border-bottom:1px solid var(--line)}
.take li::before{content:counter(tk,decimal-leading-zero);font:400 12px/2.3 var(--mono);letter-spacing:.12em;color:var(--ice)}

.s-end h2{font-size:clamp(1.8rem,3.2vw,2.6rem);margin-bottom:18px}
.s-end .acts{margin-top:34px}
.s-end{padding-bottom:40px}

/* prose */
.prose{max-width:43em}
.prose>*+*{margin-top:1.15em}
.prose h2{margin:2.6em 0 0;padding-top:.2em;scroll-margin-top:24px}
.prose h2:first-child{margin-top:0}
.prose h2::before{content:"";display:block;width:36px;height:1px;background:var(--ice);margin-bottom:22px}
.prose h3{margin-top:2.1em;font-size:1.22rem;scroll-margin-top:24px}
.prose p,.prose li{color:#cfdbe3}
.prose strong{color:#fff;font-weight:500}
.prose ul,.prose ol{padding-left:0}
.prose li{position:relative;padding:5px 0 5px 30px}
.prose ul>li::before{content:"";position:absolute;left:4px;top:1.2em;width:13px;height:1px;background:var(--ice)}
.prose ol{counter-reset:ol}
.prose ol>li{counter-increment:ol}
.prose ol>li::before{content:counter(ol);position:absolute;left:2px;top:.5em;font:400 12.5px/1.9 var(--mono);color:var(--ice)}
.prose :not(pre)>code{font-size:.86em;padding:2px 6px;background:rgba(142,203,242,.1);color:#d7ecfa;word-break:break-word}
.prose table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:.92rem;line-height:1.5;margin-top:1.8em}
.prose th,.prose td{text-align:left;vertical-align:top;padding:12px 22px 12px 0;border-bottom:1px solid var(--line);min-width:120px}
.prose th{font:500 11.5px/1.5 var(--text);letter-spacing:.15em;text-transform:uppercase;color:var(--ice);border-bottom-color:var(--line2);white-space:nowrap}
.prose td{color:#cfdbe3}
.prose blockquote{margin-left:0;margin-right:0;padding-left:22px;border-left:1px solid var(--ice);color:var(--snow)}

/* code */
pre.code{position:relative;margin:1.7em 0 0;background:var(--bg2);border:1px solid var(--line);border-left:1px solid var(--ice);overflow:hidden;max-width:100%}
pre.code code{display:block;overflow-x:auto;padding:46px 22px 22px;font:400 13.5px/1.75 var(--mono);color:#d5e2ea;white-space:pre;tab-size:2}
pre.code .k{color:var(--ice)}
pre.code .s{color:var(--sand)}
pre.code .c{color:#86a0b0;font-style:normal}
.copy{position:absolute;top:0;right:0;min-height:44px;min-width:44px;padding:0 16px;background:var(--bg2);color:var(--mut);border:0;border-left:1px solid var(--line);border-bottom:1px solid var(--line);cursor:pointer;font-size:10.5px}
.copy:hover{color:#fff}
.codebox{border:1px solid var(--line);border-left:1px solid var(--ice);background:var(--bg2);min-width:0}
.codetabs{display:flex;gap:26px;padding:0 22px;border-bottom:1px solid var(--line);overflow-x:auto}
.codetabs button{position:relative;min-height:48px;padding:0;background:none;border:0;color:var(--mut);cursor:pointer;white-space:nowrap}
.codetabs button[aria-selected=true]{color:#fff}
.codetabs button[aria-selected=true]::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:var(--ice)}
.codebox pre.code{margin:0;border:0}
.codebox pre.code code{padding-top:26px;padding-right:96px}
.codebox .copy{border-bottom:1px solid var(--line)}

/* faq */
.faq{max-width:44em;border-bottom:1px solid var(--line)}
.faq details{border-top:1px solid var(--line)}
.faq summary{display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:64px;padding:14px 0;cursor:pointer;list-style:none;font:500 1.1rem/1.45 var(--disp);color:#f3f8fb}
.faq summary::-webkit-details-marker{display:none}
.faq summary i{position:relative;flex:none;width:15px;height:15px}
.faq summary i::before,.faq summary i::after{content:"";position:absolute;left:0;top:7px;width:15px;height:1px;background:var(--ice);transition:transform .2s}
.faq summary i::after{transform:rotate(90deg)}
.faq details[open] summary i::after{transform:rotate(0)}
.faq details p{padding:0 40px 24px 0;color:var(--mut);font-size:.97rem}

/* paper slip (tanzaku) */
.paper{background:var(--paper);color:var(--ink)}
.paper a:not(.btn){color:var(--deep)}
.slip{position:relative;padding:58px 26px 26px}
.slip::before{content:"";position:absolute;left:50%;top:18px;width:11px;height:11px;margin-left:-5.5px;border-radius:50%;background:var(--bg);z-index:1}
.slip::after{content:"";position:absolute;left:50%;bottom:calc(100% - 23px);width:1px;height:140px;background:var(--line2)}
.slip-h{color:var(--deep);letter-spacing:.15em}
.slip-p{margin:10px 0 22px;font:500 1.26rem/1.4 var(--disp);color:var(--ink)}
.slip .btn{width:100%;padding:0 14px}
dt{color:var(--ink2);letter-spacing:.13em;font-size:10.5px}
dd{font:500 1.5rem/1.2 var(--disp)}
.facts{margin-top:26px}
.facts>div{padding:12px 0 13px;border-top:1px solid var(--inkline)}
.ep{margin-top:4px;padding-top:14px;border-top:1px solid var(--inkline);display:grid;gap:4px}
.ep code{font-size:12px;line-height:1.5;color:var(--ink2);word-break:break-all}
.facts-dark dt{color:var(--mut)}
.facts-dark dd{color:#f3f8fb}
.facts-dark>div{border-top-color:var(--line)}

/* toc */
.toc{margin-top:38px}
.toc .label{color:var(--mut);margin-bottom:10px}
.toc ol{border-left:1px solid var(--line)}
.toc a{display:flex;align-items:center;min-height:40px;padding:5px 0 5px 16px;margin-left:-1px;border-left:1px solid transparent;color:var(--mut);text-decoration:none;font-size:14px;line-height:1.4}
.toc a:hover{color:#fff;border-left-color:var(--ice)}

/* pricing board + calculator */
.board{margin-top:54px}
.facts-board{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0 22px;margin:0;border-top:1px solid var(--line2)}
.facts-board>div{border-top:0;padding:18px 0 4px;display:flex;flex-direction:column-reverse;justify-content:flex-end;gap:8px}
.facts-board dd{font-size:clamp(1.5rem,2.3vw,2.05rem)}
.facts-board>div:first-child dd{color:var(--ice)}
.board .sub{margin-top:22px;color:var(--mut);font-size:.95rem}
.calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) minmax(0,1.1fr);gap:30px;padding:34px 34px 36px;align-items:end}
.calc>div{min-width:0}
.calc label,.row label{display:block;color:var(--ink2);margin-bottom:4px;letter-spacing:.13em}
.calc output{display:block;font:500 2.7rem/1.1 var(--disp);color:var(--deep);border-bottom:1.5px solid transparent;min-height:50px}
.paper input{display:block;width:100%;height:50px;padding:0 2px;border:0;border-bottom:1.5px solid var(--ink);border-radius:0;background:transparent;color:var(--ink);font:400 17px/1 var(--mono);appearance:none}
.paper input:focus-visible{outline:none;border-bottom-color:var(--deep);box-shadow:0 2px 0 var(--deep);background:rgba(15,93,140,.07)}

/* key page */
.page-key{grid-template-columns:minmax(0,1fr) 440px;column-gap:72px}
.page-key .hero{padding-bottom:0}
.rail-form{position:static;grid-row:1/span 2;padding-top:84px}
.key-lead{grid-column:1;grid-row:2;min-width:0;padding:0 0 88px var(--gut)}
.key-lead .lead{margin-top:28px}
.key-lead .facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 22px;margin-top:40px;max-width:36em}
.key-lead dd{font-size:1.3rem}
.page-key .rest{grid-row:3;grid-column:1/-1;max-width:864px}
.formwrap{position:relative;padding:60px 36px 36px}
.formwrap::before{content:"";position:absolute;left:50%;top:20px;width:11px;height:11px;margin-left:-5.5px;border-radius:50%;background:var(--bg)}
.formwrap::after{content:"";position:absolute;left:50%;bottom:calc(100% - 25px);width:1px;height:110px;background:var(--line2)}
.form .tabs2{display:flex;gap:28px;border-bottom:1px solid var(--inkline);margin-bottom:24px}
.tabs2 button{min-height:46px;margin-bottom:-1px;padding:0;background:none;border:0;border-bottom:2px solid transparent;color:var(--ink2);cursor:pointer;letter-spacing:.13em}
.tabs2 button[aria-selected=true]{color:var(--ink);border-bottom-color:var(--ink)}
.msg{font-size:14.5px;line-height:1.5}
.msg:empty{display:none}
.msg.err{margin-bottom:18px;padding:10px 14px;border-left:2px solid #8f1d1d;background:rgba(143,29,29,.08);color:#7d1717}
.row{margin-bottom:20px}
.note{margin-top:8px;font-size:13.5px;line-height:1.5;color:var(--ink2)}
.form form .btn{width:100%;margin-top:6px;min-height:54px}
.form form>.note{margin-top:14px}
.keyout{display:none}
.keyout.on{display:block}
.keyout h3{color:var(--ink);font-size:1.4rem;margin-bottom:16px}
.keybox{display:flex;align-items:center;gap:12px;padding:8px 8px 8px 16px;background:var(--bg);color:var(--snow);font:400 14px/1.5 var(--mono)}
.keybox span{flex:1;min-width:0;word-break:break-all}
.keybox .btn{background:var(--ice);border-color:var(--ice);color:#06131b;flex:none}
.keyout p{margin-top:14px;font-size:14.5px;line-height:1.9;color:var(--ink)}
.keyout p.note{font-size:13.5px;line-height:1.5;color:var(--ink2);margin-top:10px}
.keyout code{font-size:13px;padding:2px 6px;background:rgba(14,29,39,.09);word-break:break-all}
.keyout .mut{color:var(--ink2)}
.keyout .acts{margin-top:20px;gap:10px}

/* 404 */
.page-404{grid-template-columns:minmax(0,1fr)}
.page-404 .hero{padding-top:150px;padding-bottom:40px;max-width:860px}
.page-404 .eyebrow{font-family:var(--mono)}
.nf{margin-top:36px;max-width:22em;border-top:1px solid var(--line)}
.nf a{display:flex;align-items:center;min-height:50px;border-bottom:1px solid var(--line);color:var(--snow);text-decoration:none;font-family:var(--disp);font-size:1.1rem}
.nf a:hover{color:var(--ice)}

/* footer */
.foot{position:relative;margin-top:110px;padding-top:90px}
.horizon{position:absolute;top:0;left:0;width:100%;height:90px;pointer-events:none}
.horizon path{fill:none;stroke:var(--ice);stroke-opacity:.42;stroke-width:1.2;stroke-linecap:round}
.foot-in{max-width:1240px;margin:0 auto;padding:44px 40px 56px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:32px 88px}
.foot-b{padding-left:var(--gut)}
.foot-b p{margin-top:14px;color:var(--mut);font-size:.95rem;max-width:24em}
.foot-l{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px;align-content:start}
.foot-l a{display:flex;align-items:center;min-height:44px;color:var(--snow);text-decoration:none;font-size:14.5px;line-height:1.35;border-bottom:1px solid var(--line)}
.foot-l a:hover{color:var(--ice)}
.legal{grid-column:1/-1;padding-left:var(--gut);color:var(--mut);font-size:12.5px;line-height:1.7;max-width:70em}

/* ---------- responsive ---------- */
@media (max-width:1180px){
:root{--gut:60px}
.page{column-gap:56px;grid-template-columns:minmax(0,1fr) 280px}
.page-key{grid-template-columns:minmax(0,1fr) 400px;column-gap:48px}
.facts-board{grid-template-columns:repeat(3,minmax(0,1fr))}
.facts-board>div:nth-child(n+4){border-top:1px solid var(--line)}
}
@media (max-width:980px){
.page,.page-key{display:block;padding:0 32px}
.hero{padding:72px 0 48px var(--gut)}
.rail{position:static;padding:0 0 56px var(--gut)}
.slip::after,.formwrap::after{display:none}
.slip{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);column-gap:32px;align-items:start;padding:52px 28px 28px}
.slip>*{grid-column:1}
.slip .facts{grid-column:2;grid-row:1/span 4;margin-top:0;display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.slip .ep{grid-column:1/-1}
.slip:not(:has(.facts)){display:block;max-width:440px}
.toc{margin:0 0 34px}
.rail:has(.toc){display:flex;flex-direction:column-reverse}
.rail-form{padding:36px 0 0 var(--gut)}
.formwrap{max-width:520px}
.key-lead{padding:44px 0 64px var(--gut)}
.page-key .rest{max-width:none}
.top-in{padding:0 32px}
}
@media (max-width:860px){
.top-in{gap:12px}
.burger{display:flex}
.nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;padding:6px 32px 20px;background:#0f1f29;border-top:1px solid var(--line);border-bottom:1px solid var(--line2)}
.nav.open{display:flex}
.nav a{min-height:52px;padding:0;border-bottom:1px solid var(--line);font-size:16px}
.nav a[aria-current]::before{left:auto;right:4px;top:50%;margin-top:-3px}
}
@media (max-width:700px){
:root{--gut:0px}
body{font-size:16px}
.top-in{padding:0 16px;height:66px;gap:8px}
.nav{padding:6px 16px 18px}
.logo{font-size:14.5px;gap:7px;letter-spacing:.02em}
.logo .mark{width:22px;height:22px}
.btn.sm.keybtn{padding:0 11px;font-size:13px;letter-spacing:.01em}
.keybtn::after{display:none}
.page,.page-key{padding:0 20px}
.ridge{height:260px}
.hero{padding:52px 0 40px}
.lead{margin-top:22px;font-size:1.05rem}
.hero .acts{margin-top:30px}
.hero .acts .btn{flex:1 1 100%}
.rail{padding-bottom:44px}
.slip{display:block;padding:48px 22px 24px}
.slip .facts{margin-top:22px}
.sec{display:block;padding:52px 0 58px}
.sec-n{display:flex;align-items:center;gap:12px;padding:0 0 18px}
.sec-n::after{width:40px;height:1px;margin:0}
h2{margin-bottom:26px}
.feat,.uses{grid-template-columns:minmax(0,1fr);gap:0}
.uses{gap:30px}
.uses li:nth-child(even){transform:none}
.s-uses{padding-bottom:58px}
.steps li{grid-template-columns:56px minmax(0,1fr)}
.steps li::before{font-size:2.4rem}
.steps li:nth-child(n+2){margin-left:0}
.page-key .hero{padding-bottom:0}
.rail-form{padding:28px 0 0}
.formwrap{padding:50px 22px 26px}
.key-lead{padding:36px 0 52px}
.key-lead .facts{grid-template-columns:repeat(2,minmax(0,1fr))}
.facts-board{grid-template-columns:repeat(2,minmax(0,1fr))}
.facts-board>div:nth-child(n+3){border-top:1px solid var(--line)}
.board{margin-top:40px}
.calc{grid-template-columns:minmax(0,1fr);gap:22px;padding:26px 22px 28px}
pre.code code{font-size:12.5px;padding-left:16px;padding-right:16px}
.codebox pre.code code{padding-top:46px;padding-right:16px}
.codetabs{padding:0 16px}
.faq details p{padding-right:0}
.toc a{min-height:44px}
.page-404 .hero{padding-top:90px}
.foot{margin-top:70px}
.foot-in{grid-template-columns:minmax(0,1fr);padding:32px 20px 44px;gap:28px}
.foot-l{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:420px){
.rule{display:none}
.logo{margin-right:auto}
}
@media (prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
*,*::before,*::after{transition:none!important;animation:none!important}
}