:root{--navy:#071223;--ink:#101729;--muted:#687186;--paper:#fbfaf6;--gold:#ffb800;--line:#d7d8da;--white:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;letter-spacing:-.012em}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.container{width:min(1080px,calc(100% - 44px));margin:auto}
.site-header{position:sticky;top:0;z-index:40;background:rgba(6,15,29,.96);border-bottom:1px solid rgba(255,255,255,.11);backdrop-filter:blur(16px);color:#fff}
.nav-shell{width:min(1180px,calc(100% - 44px));height:74px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:11px;font-size:21px;font-weight:900;letter-spacing:-.05em}.brand img{width:38px;height:38px;border-radius:11px;background:#fff}.brand-vip{color:var(--gold);font-style:italic;margin-left:2px}
.nav-links{display:flex;gap:24px;align-items:center}.nav-links a{font-size:10px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:rgba(255,255,255,.72)}.nav-links a:hover{color:#fff}
.article-hero{padding:82px 0 70px;background:var(--navy);color:#fff}.kicker{margin:0 0 15px;color:var(--gold);font-size:10px;font-weight:900;letter-spacing:.16em;text-transform:uppercase}.article-hero h1{max-width:920px;margin:0;font:500 clamp(42px,6vw,76px)/1 Georgia,serif;letter-spacing:-.05em}.article-hero .excerpt{max-width:790px;margin:24px 0 0;font-size:16px;line-height:1.75;color:rgba(255,255,255,.65)}
.crumbs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:32px;font-size:9px;font-weight:900;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.5)}.crumbs a{color:var(--gold)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 230px;gap:80px;padding:70px 0 105px}.article-body{min-width:0}.article-body h2,.article-body h3{font:500 32px/1.15 Georgia,serif;margin:44px 0 15px;color:var(--navy);letter-spacing:-.025em}.article-body h4{font:800 13px/1.4 Arial,sans-serif;margin:30px 0 9px;text-transform:uppercase;letter-spacing:.06em;color:#8b6500}.article-body p,.article-body li{font-size:16px;line-height:1.86;color:#505a6d}.article-body ul,.article-body ol{padding-left:23px}.article-meta{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 31px}.article-meta span{border:1px solid var(--line);padding:8px 11px;font-size:9px;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:#6f7786}
.field-note{margin:30px 0;padding:21px 23px;border-left:3px solid var(--gold);background:#fff6d8}.field-note strong{display:block;margin-bottom:6px;font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:#8b6500}.data-table{width:100%;margin:28px 0;border-collapse:collapse;background:#fff}.data-table th,.data-table td{padding:14px 15px;border:1px solid var(--line);text-align:left;vertical-align:top;font-size:13px;line-height:1.55}.data-table th{background:var(--navy);color:#fff;font-size:9px;text-transform:uppercase;letter-spacing:.08em}.formula{margin:28px 0;padding:26px;background:var(--navy);color:#fff;font:500 24px/1.4 Georgia,serif}.formula small{display:block;margin-top:8px;color:rgba(255,255,255,.58);font:12px/1.6 Arial,sans-serif}
.article-aside{position:sticky;top:104px;align-self:start;border-top:4px solid var(--gold);background:#fff;padding:24px;box-shadow:0 12px 35px rgba(7,18,35,.08)}.article-aside strong{display:block;margin-bottom:12px;font:500 25px Georgia,serif}.article-aside p{font-size:12px;line-height:1.7;color:var(--muted)}.article-aside a{display:block;margin-top:12px;padding-top:12px;border-top:1px solid var(--line);font-size:9px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}.article-nav{display:flex;justify-content:space-between;gap:20px;margin-top:55px;padding-top:28px;border-top:1px solid var(--line)}.article-nav a{font-size:10px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
.site-footer{padding:46px 0;background:#050c18;color:#fff}.footer-row{display:flex;justify-content:space-between;gap:24px;align-items:center}.footer-row p{font-size:11px;color:rgba(255,255,255,.45)}.footer-links{display:flex;gap:18px;font-size:9px;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:rgba(255,255,255,.65)}
@media(max-width:780px){.container,.nav-shell{width:min(100% - 28px,1080px)}.nav-shell{height:66px}.nav-links a:nth-child(2){display:none}.article-hero{padding:58px 0 52px}.article-hero h1{font-size:43px}.article-layout{grid-template-columns:1fr;gap:36px;padding:48px 0 75px}.article-aside{position:static;order:-1}.article-body p,.article-body li{font-size:15px}.data-table{display:block;overflow-x:auto}.footer-row{display:block}.footer-links{margin-top:18px;flex-wrap:wrap}.article-nav{flex-direction:column}.brand{font-size:18px}.brand img{width:34px;height:34px}}