:root{--bg:#0b0c12;--bg2:#0e1118;--panel:#171c27;--line:#283043;--line2:#323c52;--txt:#c6c9d9;--mut:#8195c3;--dim:#636c81;--a:#8efa00;--a2:#b1ff4b;--b:#5c48d7;--on:#0b0a08}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;background:var(--bg);color:var(--txt);font:15px/1.65 "Kumbh Sans",Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:clip}
img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button,input,select,summary{font:inherit;color:inherit}.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
h1,h2,h3{color:#fff;margin:0;font-weight:800;line-height:1.2}
/* top */
.top{position:sticky;top:0;z-index:50;background:rgba(11,12,18,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.top-i{max-width:1280px;margin:auto;padding:0 24px;height:56px;display:flex;align-items:center;gap:16px}.brand{margin-right:auto}.brand img{height:30px;width:auto}
.lsel select{appearance:none;background:transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%238195c3' stroke-width='1.6'/%3E%3C/svg%3E") no-repeat right 8px center;border:1px solid var(--line2);border-radius:6px;padding:6px 26px 6px 10px;font-size:13px;font-weight:600;cursor:pointer;outline:0}.lsel select:hover,.lsel select:focus{border-color:var(--a)}.lsel option{background:var(--panel)}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:7px 16px;border:1px solid var(--line2);border-radius:6px;font-weight:700;font-size:13px;transition:.15s;background:transparent;color:#fff}.btn:hover{border-color:var(--a);color:var(--a)}.btn.pri{background:var(--a);border-color:var(--a);color:var(--on)}.btn.pri:hover{background:var(--a2);color:var(--on)}
/* layout */
.layout{max-width:1280px;margin:auto;padding:0 24px;display:grid;grid-template-columns:230px minmax(0,1fr) 250px;gap:44px;align-items:start}
.side,.side-r{position:sticky;top:76px;padding:28px 0;max-height:calc(100vh - 76px);overflow-y:auto}
.tree h3{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);margin:0 0 8px}.tree h3:not(:first-child){margin-top:24px}.tree ul{list-style:none;margin:0;padding:0}.tree>ul>li>a{display:block;padding:5px 10px;border-left:2px solid transparent;font-weight:600;color:var(--txt)}.tree>ul>li>a:hover{color:#fff;border-left-color:var(--line2)}.tree li.cur>a{color:var(--a);border-left-color:var(--a)}.tree li ul{margin:2px 0 6px 12px;border-left:1px solid var(--line)}.tree li li a{display:block;padding:3px 10px;font-size:13px;color:var(--mut)}.tree li li a:hover{color:var(--a)}
main{padding:40px 0 20px;min-width:0}.pghead{margin-bottom:34px;padding-bottom:26px;border-bottom:1px solid var(--line)}.pghead h1{font-size:clamp(30px,3.4vw,42px);letter-spacing:-.02em;margin-bottom:10px}.pghead p{margin:0;font-size:17px;color:var(--mut);max-width:640px}
section{padding:0 0 38px;margin-bottom:38px;border-bottom:1px solid var(--line)}section:last-of-type{border:0}h2{font-size:24px;margin-bottom:14px}h3{font-size:16px;margin:26px 0 10px}.lead{margin:-6px 0 16px;color:var(--mut)}.lead2{color:var(--mut);margin:14px 0 8px}p{margin:0 0 12px}.note{font-size:13px;color:var(--dim)}.note b{color:var(--txt)}
.more{color:var(--a);font-weight:700}.more:hover{text-decoration:underline}
/* glance */
.glance{border:1px solid var(--line);border-radius:8px;padding:16px 18px;background:var(--bg2)}.glance h3{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);margin:0 0 6px}.glance .spec>div{grid-template-columns:1fr;gap:0;padding:8px 0}.glance .spec dt{font-size:11px}.glance .spec dd{font-weight:700;color:#fff;font-size:15px}.glance .btn{margin-top:14px;width:100%}.glance-m{display:none}
/* spec list (definition list) */
.spec{margin:0}.spec>div{display:grid;grid-template-columns:210px 1fr;gap:16px;padding:11px 0;border-bottom:1px solid var(--line)}.spec>div:first-child{border-top:1px solid var(--line)}.spec dt{color:var(--mut);font-weight:600}.spec dd{margin:0;color:#fff}.spec dd small{display:block;color:var(--dim);font-size:13px;margin-top:2px}
/* tables */
.tw{overflow-x:auto;margin:6px 0}.t{width:100%;border-collapse:collapse;font-size:14px;min-width:420px}.t th{text-align:left;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim);font-weight:700;padding:8px 14px 8px 0;border-bottom:1px solid var(--line2)}.t td{padding:10px 14px 10px 0;border-bottom:1px solid var(--line);vertical-align:middle}.t td b{color:#fff}.t tr:last-child td{border-bottom:0}.t .th{width:44px;padding-right:12px}.t .th img{border-radius:4px;max-width:none}.t .no{width:30px;color:var(--a);font-weight:800}.gl td{padding:8px 14px 8px 0}
/* lists */
.chk{list-style:none;margin:14px 0 0;padding:0}.chk li{position:relative;padding:7px 0 7px 26px;border-bottom:1px solid var(--line)}.chk li:last-child{border:0}.chk li::before{content:"✓";position:absolute;left:2px;color:var(--a);font-weight:800}
.proc{list-style:none;margin:10px 0 0;padding:0 0 0 14px;counter-reset:p;border-left:1px solid var(--line2)}.proc li{counter-increment:p;position:relative;padding:4px 0 14px 28px}.proc li::before{content:counter(p);position:absolute;left:-14px;top:2px;width:26px;height:26px;border-radius:50%;background:var(--bg);border:1px solid var(--a);color:var(--a);font-size:12px;font-weight:800;display:grid;place-items:center}
.tags{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:6px}.tags li{border:1px solid var(--line2);border-radius:4px;padding:2px 10px;font-size:13px}
.cats{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:0;counter-reset:c;border:1px solid var(--line);border-radius:8px;overflow:hidden}.cats li{counter-increment:c;padding:12px 16px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);font-weight:700;color:#fff}.cats li::before{content:counter(c,decimal-leading-zero);color:var(--a);margin-right:10px;font-size:12px}.cats li:nth-child(3n){border-right:0}.cats li:nth-last-child(-n+3){border-bottom:0}
.links{list-style:none;margin:0;padding:0}.links a{display:grid;grid-template-columns:240px 1fr auto;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);align-items:baseline}.links li:first-child a{border-top:1px solid var(--line)}.links a:hover b{color:var(--a)}.links b{color:#fff}.links span{color:var(--mut);font-size:14px}.links a::after{content:"→";color:var(--a)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:32px}.three{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.three .t{min-width:0}
.acc details{border-bottom:1px solid var(--line)}.acc details:first-child{border-top:1px solid var(--line)}.acc summary,.acc1 summary{list-style:none;cursor:pointer;padding:13px 30px 13px 0;font-weight:700;color:#fff;position:relative}.acc summary::-webkit-details-marker,.acc1 summary::-webkit-details-marker{display:none}.acc summary::after,.acc1 summary::after{content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);color:var(--a);font-size:20px}.acc details[open] summary::after,.acc1[open] summary::after{content:"–"}.acc p{padding:0 0 14px;color:var(--txt);margin:0}
.acc1{border-bottom:1px solid var(--line)}.acc1:first-of-type{margin-top:18px;border-top:1px solid var(--line)}.acc1 .tw{margin-bottom:10px}
/* footer */
.ft{margin-top:20px;border-top:1px solid var(--line);background:#06070a;padding:34px 0 28px;color:var(--dim);font-size:13px}.ft .w{max-width:1280px;margin:auto;padding:0 24px}.ft-g{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:30px;padding-bottom:22px}.ft p{margin:10px 0 0;max-width:420px}.ft ul{list-style:none;margin:0;padding:0;display:grid;gap:6px;align-content:start}.ft li a:hover{color:var(--a)}.ft-b{border-top:1px solid var(--line);padding-top:16px;font-size:12px;max-width:none!important;display:flex;gap:10px;align-items:center;flex-wrap:wrap}.age{display:inline-grid;place-items:center;width:34px;height:34px;border:2px solid #ff3337;border-radius:50%;font-weight:800;color:#fff;font-size:12px;flex:none}
.mnav{display:none}
@media(max-width:1080px){.layout{grid-template-columns:minmax(0,1fr);gap:0}.side,.side-r{display:none}.glance-m{display:block;margin-bottom:28px}.mnav{display:block;border-bottom:1px solid var(--line);background:var(--bg2)}.mnav summary{max-width:1280px;margin:auto;padding:12px 24px;font-weight:700;cursor:pointer;list-style:none}.mnav summary::-webkit-details-marker{display:none}.mnav summary::after{content:"▾";float:right;color:var(--a)}.mnav .tree{padding:0 24px 18px;max-width:1280px;margin:auto}main{padding-top:28px}}
@media(max-width:700px){.spec>div{grid-template-columns:1fr;gap:2px}.links a{grid-template-columns:1fr auto;gap:2px 12px}.links a span{grid-column:1/-1;order:3}.links a::after{grid-column:2;grid-row:1}.two,.three{grid-template-columns:1fr}.cats{grid-template-columns:1fr 1fr}.cats li:nth-child(3n){border-right:1px solid var(--line)}.cats li:nth-child(2n){border-right:0}.cats li:nth-last-child(-n+3){border-bottom:1px solid var(--line)}.cats li:nth-last-child(-n+2){border-bottom:0}.top-i{padding:0 16px}.layout{padding:0 16px}.ft-g{grid-template-columns:1fr}}
/* unique footer: prev/next + language row */
.pnav{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:6px 0 28px}.pnav a{display:grid;gap:2px;padding:14px 18px;border:1px solid var(--line);border-radius:8px;transition:.15s}.pnav a:hover{border-color:var(--a)}.pnav small{color:var(--a);font-size:16px;font-weight:800}.pnav b{color:#fff;font-size:16px}.pn-n{text-align:right}
.ft-m{border-top:1px solid var(--line);padding-top:20px;display:grid;gap:10px}.ft-lang{list-style:none;margin:0;padding:0;display:flex;gap:6px;flex-wrap:wrap}.ft-lang a{display:block;border:1px solid var(--line2);border-radius:4px;padding:3px 10px;font-size:12px;font-weight:700}.ft-lang a.on,.ft-lang a:hover{border-color:var(--a);color:var(--a)}.ft-m p{margin:0;max-width:none}
.ft .ft-lang{display:flex;flex-wrap:wrap;gap:6px}