*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:#04060d;color:#e6eaf2;line-height:1.7;-webkit-font-smoothing:antialiased}
:root{--blue:#3b82f6;--blue-d:#2563eb;--blue-l:#60a5fa;--w70:rgba(255,255,255,.7);--w50:rgba(255,255,255,.5);--bd:rgba(255,255,255,.07)}
a{color:var(--blue-l);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
header{position:fixed;top:0;left:0;right:0;z-index:9999;background:rgba(4,6,13,.85);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--bd)}
.h-inner{max-width:1280px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.logo{font-weight:800;font-size:1.05rem;letter-spacing:-.02em;color:#fff}
.logo-b{color:var(--blue-l)}
nav{display:flex;align-items:center;gap:2px}
nav a{padding:8px 16px;font-size:13px;font-weight:600;color:var(--w70);border-radius:8px}
nav a:hover,nav a[aria-current="page"]{color:#fff;background:rgba(59,130,246,.1)}
.hamburger{display:none;width:42px;height:42px;border-radius:10px;align-items:center;justify-content:center;background:rgba(255,255,255,.04);border:1px solid var(--bd)}
.ham-lines{display:flex;flex-direction:column;gap:4px;width:18px}
.ham-lines span{height:2px;background:#fff;border-radius:2px}
.mobile-menu{display:none;overflow:hidden;max-height:0;opacity:0;transition:.3s}
.mobile-menu.open{max-height:440px;opacity:1}
.mobile-menu-inner{background:rgba(10,14,26,.98);padding:18px;display:flex;flex-direction:column;gap:4px;border-top:1px solid var(--bd)}
.mobile-menu-inner a{padding:12px 16px;color:var(--w70);border-radius:12px}
@media(max-width:860px){nav{display:none}.hamburger{display:flex}.mobile-menu{display:block}}
.art-hero{padding:130px 24px 50px;max-width:760px;margin:0 auto}
.bc{font-size:13px;color:var(--w50);margin-bottom:20px}
.bc a{color:var(--w70)}
.tag{display:inline-block;padding:4px 12px;background:rgba(59,130,246,.12);color:var(--blue-l);border-radius:100px;font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;margin-bottom:18px}
.art-hero h1{font-size:clamp(1.8rem,4.5vw,2.8rem);font-weight:800;letter-spacing:-.025em;line-height:1.15;color:#fff;margin-bottom:22px}
.art-meta{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--w50);padding:18px 0;border-top:1px solid var(--bd);border-bottom:1px solid var(--bd)}
.art-meta strong{color:#fff}
.art-body{max-width:720px;margin:0 auto;padding:30px 24px 60px;font-size:1.05rem;color:rgba(230,234,242,.92)}
.art-body p{margin-bottom:18px}
.art-body h2{font-size:1.6rem;font-weight:800;color:#fff;letter-spacing:-.02em;margin:42px 0 16px;line-height:1.25}
.art-body h3{font-size:1.22rem;font-weight:700;color:#fff;margin:30px 0 12px}
.art-body ul,.art-body ol{margin:0 0 20px 22px}
.art-body li{margin-bottom:8px}
.art-body strong{color:#fff;font-weight:700}
.art-body code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.92em;padding:2px 8px;background:rgba(96,165,250,.12);color:#93c5fd;border-radius:6px}
.art-body pre{background:rgba(0,0,0,.4);border:1px solid var(--bd);border-radius:12px;padding:18px 20px;margin:22px 0;overflow-x:auto;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.88rem;line-height:1.65}
.art-body pre code{background:none;color:#cdd6e0;padding:0}
.art-body blockquote{margin:24px 0;padding:14px 22px;border-left:3px solid var(--blue);background:rgba(59,130,246,.06);border-radius:0 10px 10px 0;font-style:italic}
.art-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:.94rem}
.art-body th,.art-body td{padding:11px 14px;border-bottom:1px solid var(--bd);text-align:left}
.art-body th{color:#fff;background:rgba(255,255,255,.03)}
.cta-box{margin:44px 0;padding:32px 30px;background:linear-gradient(180deg,rgba(59,130,246,.12),rgba(37,99,235,.04));border:1px solid rgba(59,130,246,.3);border-radius:18px;text-align:center}
.cta-box h3{font-size:1.3rem;color:#fff;margin-bottom:10px;font-weight:800}
.cta-box p{color:var(--w70);margin-bottom:20px;font-size:.95rem}
.cta-btn{display:inline-block;padding:14px 28px;background:linear-gradient(180deg,var(--blue),var(--blue-d));color:#fff!important;font-weight:700;border-radius:100px;text-decoration:none!important}
.related{max-width:1240px;margin:0 auto;padding:30px 24px 70px}
.related h3{font-size:1.2rem;font-weight:800;color:#fff;margin-bottom:18px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:14px}
.related a{display:block;padding:18px 20px;background:rgba(255,255,255,.03);border:1px solid var(--bd);border-radius:14px;color:#e6eaf2!important}
.related a strong{display:block;color:#fff;font-size:.95rem;margin-bottom:6px}
.related a span{font-size:.82rem;color:var(--w50)}
.foot{padding:50px 24px;border-top:1px solid var(--bd);background:rgba(0,0,0,.3)}
.foot-inner{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;font-size:.85rem;color:var(--w50)}
.foot a{color:var(--w70)}
.foot-links{display:flex;gap:18px;flex-wrap:wrap}
@media(max-width:600px){.foot-inner{grid-template-columns:1fr;text-align:center}.foot-links{justify-content:center}}