:root{--blue:#195999;--blue2:#143f6b;--bg:#f2f2f2;--white:#fff;--text:#17324d;--muted:#647484;--line:#d8e1e8;--soft:#eaf2f8;--warn:#fff7e8;--max:1240px;--shadow:0 16px 42px rgba(25,89,153,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,Roboto,Arial,sans-serif;line-height:1.64}
h1,h2,h3,h4{font-family:Montserrat,Inter,Roboto,Arial,sans-serif}a{color:inherit}img{max-width:100%;height:auto}.container{width:min(var(--max),calc(100% - 32px));margin:auto}
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}.nav{min-height:78px;display:flex;align-items:center;gap:20px}.logo{height:50px}.navlinks{margin-left:auto;display:flex;gap:18px;align-items:center}.navlinks a{text-decoration:none;font-weight:750;font-size:.93rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 16px;border-radius:11px;text-decoration:none;font-weight:850}.btn-primary{background:var(--blue);color:#fff}.btn-outline{background:#fff;border:1px solid var(--blue);color:var(--blue)}.menu-btn{display:none;margin-left:auto;background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 11px}
.hero{background:linear-gradient(135deg,#fff,#edf4fa);border-bottom:1px solid var(--line);padding:52px 0}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:42px;align-items:center}.kicker{color:var(--blue);text-transform:uppercase;letter-spacing:.11em;font-size:.78rem;font-weight:900}.hero h1{font-size:clamp(2.3rem,5vw,4.4rem);line-height:1.03;margin:.28em 0}.hero p{font-size:1.1rem;color:var(--muted);max-width:720px}.hero-art{border-radius:22px;box-shadow:var(--shadow)}
.search{position:relative;margin-top:22px}.search input{width:100%;padding:16px 17px 16px 47px;border:1px solid #cbd8e3;border-radius:13px;font-size:1rem;background:#fff;outline:none}.search input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(25,89,153,.08)}.search span{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--blue)}
.quick{display:flex;gap:8px;flex-wrap:wrap;margin-top:13px}.chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 10px;text-decoration:none;font-size:.84rem}
.section{padding:48px 0}.layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:28px;align-items:start}.sidebar{position:sticky;top:96px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px;max-height:calc(100vh - 116px);overflow:auto}.sidebar h3{font-size:1rem;margin:5px 0 10px}.sidebar .group{margin:13px 0}.sidebar .group-title{font-size:.75rem;color:var(--blue);font-weight:900;text-transform:uppercase;letter-spacing:.08em;margin:8px 0}.sidebar a{display:block;text-decoration:none;color:var(--muted);font-size:.88rem;padding:6px 8px;border-radius:7px}.sidebar a:hover,.sidebar a.active{background:var(--soft);color:var(--blue);font-weight:800}
.breadcrumbs{font-size:.88rem;color:var(--muted);margin-bottom:17px}.breadcrumbs a{text-decoration:none}.article{background:#fff;border:1px solid var(--line);border-radius:20px;padding:clamp(24px,4vw,46px);box-shadow:0 6px 20px rgba(0,0,0,.025)}.article h1{font-size:clamp(2.1rem,4vw,3.4rem);line-height:1.08;margin:.2em 0}.summary{font-size:1.08rem;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:22px}.meta{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 25px}.meta span{background:var(--soft);color:var(--blue);border-radius:999px;padding:5px 9px;font-size:.78rem;font-weight:750}.article h2{font-size:1.55rem;margin-top:1.8em}.article h3{font-size:1.14rem;margin-top:1.45em}.article p,.article li{font-size:1.01rem}.article ul,.article ol{padding-left:1.35rem}.callout{background:#eef5fb;border-left:5px solid var(--blue);padding:15px 18px;border-radius:0 12px 12px 0;margin:18px 0}.warning{background:var(--warn);border-left-color:#dfa13f}.legacy{background:#fafafa;border:1px dashed #cbd5dd;border-radius:12px;padding:14px 17px;color:#5d6973;font-size:.92rem}.steps{counter-reset:step;display:grid;gap:12px}.step{background:#f9fbfd;border:1px solid var(--line);border-radius:12px;padding:14px 16px}.step:before{counter-increment:step;content:counter(step);display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--blue);color:#fff;font-weight:900;margin-right:9px}
.page-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:30px}.page-nav a{background:#f9fbfd;border:1px solid var(--line);border-radius:13px;padding:15px;text-decoration:none}.page-nav a:last-child{text-align:right}.page-nav small{display:block;color:var(--muted)}.related{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.related a{border:1px solid var(--line);border-radius:12px;padding:13px;text-decoration:none}
.support{background:var(--blue);color:#fff;border-radius:18px;padding:24px;margin-top:28px}.support p{color:#dce9f4}.support .btn-primary{background:#fff;color:var(--blue)}.support .btn-outline{border:1px solid #fff;color:#fff;background:transparent}.actions{display:flex;gap:10px;flex-wrap:wrap}
.footer{margin-top:50px;background:var(--blue2);color:#dce7f1;padding:38px 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}.footer a{color:#eef6fd;text-decoration:none;display:block;margin:5px 0}.footer-logo{height:44px;background:#fff;padding:5px;border-radius:8px}
.index-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.index-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.index-card h3{margin:0 0 8px}.index-card a{display:block;text-decoration:none;padding:5px 0;color:var(--muted)}.index-card a:hover{color:var(--blue)}
.search-results{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border:1px solid var(--line);border-radius:12px;margin-top:6px;box-shadow:var(--shadow);z-index:30;max-height:320px;overflow:auto}.search-results a{display:block;text-decoration:none;padding:11px 14px;border-bottom:1px solid var(--line)}.search-results a:hover{background:var(--soft)}.search-results small{color:var(--muted);display:block}
@media(max-width:960px){.hero-grid,.layout{grid-template-columns:1fr}.sidebar{position:static;max-height:none}.navlinks{display:none}.navlinks.open{display:flex;position:absolute;top:78px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:18px;flex-direction:column}.menu-btn{display:block}.index-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.index-grid,.page-nav,.related,.footer-grid{grid-template-columns:1fr}.hero{padding:38px 0}.container{width:min(var(--max),calc(100% - 22px))}.article{border-radius:0}.page-nav a:last-child{text-align:left}}