:root{--bg:#05060a;--panel:#0b0d13;--panel2:#10131b;--line:#232631;--text:#f5f6f8;--muted:#9da3af;--link:#2f7df6;--green:#2bd99f;--max:1480px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.68}a{color:inherit;text-decoration:none}button{font:inherit}.topbar{height:64px;border-bottom:1px solid var(--line);display:flex;align-items:center;position:sticky;top:0;background:rgba(5,6,10,.96);backdrop-filter:blur(12px);z-index:50}.top-inner{width:100%;max-width:var(--max);margin:auto;padding:0 28px;display:flex;align-items:center;gap:16px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em}.brand img{width:26px;height:26px}.brand span:last-child{color:#a8adb8;font-weight:600}.top-spacer{flex:1}.top-chip{border:1px solid var(--line);background:#0d1017;padding:7px 12px;border-radius:999px;color:#cbd0da;font-size:13px}.mobile-menu{display:none;border:1px solid var(--line);background:#0d1017;color:white;border-radius:10px;padding:8px 10px}.layout{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:270px minmax(0,1fr) 230px;min-height:calc(100vh - 64px)}.sidebar{border-right:1px solid var(--line);padding:26px 20px 60px;height:calc(100vh - 64px);position:sticky;top:64px;overflow:auto}.nav-group{margin:0 0 14px}.nav-head{width:100%;display:flex;justify-content:space-between;align-items:center;border:0;background:transparent;color:white;font-weight:800;font-size:13px;padding:8px 8px;cursor:pointer;text-align:left}.nav-head:after{content:'⌄';color:#737987}.nav-group.closed .nav-head:after{content:'›'}.nav-items{display:grid;gap:1px}.nav-group.closed .nav-items{display:none}.nav-link{display:block;color:#aeb4c1;padding:7px 10px;border-radius:8px;font-size:13px;line-height:1.35}.nav-link:hover{background:#0f1219;color:#fff}.nav-link.active{color:#4f8cff;background:#0d1320;font-weight:700}.main{min-width:0;padding:48px 54px 90px}.breadcrumbs{display:flex;gap:7px;color:#7e8593;font-size:13px;margin-bottom:16px;flex-wrap:wrap}.breadcrumbs span+span:before{content:'›';margin-right:7px;color:#525864}.article{max-width:860px}.article h1{font-size:40px;line-height:1.08;margin:0 0 22px;letter-spacing:-.035em}.lede{font-size:18px;color:#c9ced8;margin:0 0 34px;max-width:820px}.article h2{font-size:25px;line-height:1.25;margin:46px 0 14px;letter-spacing:-.02em;scroll-margin-top:88px}.article p{font-size:16px;color:#d7dae1;margin:0 0 16px}.article ul{padding-left:22px;color:#d7dae1}.article li{margin:8px 0}.note{border:1px solid #24344e;background:#0b1321;border-radius:12px;padding:15px 17px;color:#cdd9ea;margin:18px 0}.data-table{width:100%;border-collapse:collapse;margin:18px 0 26px;font-size:14px}.data-table th,.data-table td{border:1px solid #252936;padding:12px 14px;text-align:left}.data-table th{background:#10131b}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:24px 0}.card{border:1px solid var(--line);background:#0b0e14;border-radius:14px;padding:17px}.card b{display:block;margin-bottom:5px}.card span{color:#9da3af;font-size:13px}.faq{margin-top:56px;padding-top:12px;border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line);padding:15px 0}.faq summary{cursor:pointer;font-weight:700}.faq p{font-size:14px;color:#b8bec9;margin:9px 0 0}.footer-nav{margin-top:58px;padding-top:24px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px}.footer-nav a{border:1px solid var(--line);border-radius:12px;padding:12px 15px;color:#cbd0da}.toc{padding:34px 18px;position:sticky;top:64px;height:calc(100vh - 64px);overflow:auto}.toc-title{font-weight:800;font-size:13px;margin-bottom:10px}.toc a{display:block;color:#9299a6;font-size:13px;padding:5px 0;border-left:1px solid #2b2f38;padding-left:12px}.toc a:hover{color:#fff}.seo-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:38px 0 0}.seo-fact{border:1px solid var(--line);border-radius:12px;background:#0b0e14;padding:15px}.seo-fact strong{display:block;color:#fff}.seo-fact small{color:#949ba8}.site-footer{color:#767d89;font-size:12px;margin-top:48px}.hero-graphic{width:100%;max-height:280px;object-fit:contain;border:1px solid var(--line);border-radius:16px;background:#090b10;margin:8px 0 30px;padding:18px}
@media(max-width:1100px){.layout{grid-template-columns:240px minmax(0,1fr)}.toc{display:none}.main{padding:38px 36px}.cards,.seo-facts{grid-template-columns:1fr 1fr}}
@media(max-width:760px){.top-inner{padding:0 16px}.mobile-menu{display:block}.layout{display:block}.sidebar{position:fixed;z-index:60;top:64px;left:0;width:min(88vw,320px);height:calc(100vh - 64px);background:#07090e;transform:translateX(-102%);transition:.2s;padding:18px;border-right:1px solid var(--line)}body.nav-open .sidebar{transform:translateX(0)}.main{padding:30px 18px 70px}.article h1{font-size:31px}.lede{font-size:16px}.cards,.seo-facts{grid-template-columns:1fr}.top-chip{display:none}}