:root{--navy-950:#081426;--navy-900:#0b1f3a;--navy-800:#12305a;--blue:#2b6cb0;--blue-600:#3182ce;--blue-400:#63b3ed;--blue-100:#dbeafe;--blue-50:#eff6ff;--ink:#0f1e33;--body:#33415c;--gray:#51617a;--muted:#7b8aa0;--line:#e3eaf3;--bg:#f5f8fc;--card:#ffffff;--gold:#f6ad55;--radius:18px;--shadow-sm:0 1px 2px rgba(13,30,60,0.06);--shadow-md:0 6px 18px rgba(13,30,60,0.08);--shadow-lg:0 18px 44px rgba(13,30,60,0.14);--grad-brand:linear-gradient(135deg,#2b6cb0 0%,#4c51bf 100%);--grad-hero:linear-gradient(140deg,#081426 0%,#0e2a52 42%,#1d4e89 72%,#2b6cb0 100%)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:'Poppins',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;color:var(--body);background:var(--bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}.wrap{max-width:1200px;margin:0 auto;padding:0 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svg{width:100%;height:100%;display:block}.wordmark{font-size:1.38rem;font-weight:800;letter-spacing:-0.03em;color:var(--ink)}.wordmark em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent}.footer-brand .wordmark{color:#fff}.main-nav{display:flex;align-items:center;gap:2px}.nav-link,.nav-drop-btn{position:relative;color:var(--gray);font-size:0.93rem;font-weight:500;padding:10px 15px;border-radius:12px;text-decoration:none;background:none;border:none;cursor:pointer;font-family:inherit;display:inline-flex;align-items:center;gap:6px;transition:color 0.18s ease,background 0.18s ease}.nav-link::after,.nav-drop-btn::after{content:"";position:absolute;left:15px;right:15px;bottom:6px;height:2px;border-radius:2px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform 0.22s ease}.nav-link:hover,.nav-drop:hover .nav-drop-btn,.nav-drop:focus-within 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84px;text-align:center}.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(90px);opacity:0.5;pointer-events:none}.hero::before{width:480px;height:480px;left:-140px;top:-140px;background:#4c51bf}.hero::after{width:420px;height:420px;right:-120px;bottom:-160px;background:#0ea5e9;opacity:0.35}.hero .wrap{position:relative;z-index:1}.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,0.12);border:1px solid rgba(255,255,255,0.25);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);padding:8px 18px;border-radius:999px;font-size:0.82rem;font-weight:600;letter-spacing:0.04em;margin-bottom:22px}.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:#4ade80;box-shadow:0 0 10px #4ade80}.hero h1{font-size:clamp(2.1rem,5vw,3.4rem);font-weight:800;letter-spacing:-0.03em;line-height:1.12;margin-bottom:16px;text-wrap:balance}.hero h1 .grad{background:linear-gradient(90deg,#93c5fd,#c4b5fd);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p.lead{max-width:680px;margin:0 auto 30px;font-size:1.06rem;color:rgba(255,255,255,0.82);line-height:1.65}.hero-search{max-width:580px;margin:0 auto 26px;position:relative}.hero-search svg{position:absolute;left:20px;top:50%;transform:translateY(-50%);width:20px;height:20px;stroke:var(--muted);pointer-events:none}#pfpSearch{width:100%;padding:17px 24px 17px 52px;font-size:1rem;font-family:inherit;border:none;border-radius:999px;outline:none;color:var(--ink);box-shadow:0 18px 44px rgba(4,12,28,0.35);transition:box-shadow 0.2s ease}#pfpSearch:focus{box-shadow:0 18px 44px rgba(4,12,28,0.45),0 0 0 4px rgba(147,197,253,0.45)}#pfpSearch::placeholder{color:var(--muted)}.hero-cats{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}.pill{background:rgba(255,255,255,0.1);border:1px solid 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h1{font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:800;color:var(--ink);line-height:1.25;letter-spacing:-0.025em;margin-bottom:14px;text-wrap:balance}.article-desc{color:var(--gray);font-size:1.04rem;margin-bottom:18px;line-height:1.65}.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:0.86rem;color:var(--muted);margin-bottom:8px;padding-bottom:22px;border-bottom:1px solid var(--line)}.article-meta .author-dot{width:34px;height:34px;border-radius:50%;flex:none;background:var(--grad-brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:0.95rem}.article-meta a.cat-link{color:var(--blue);text-decoration:none;font-weight:600;background:var(--blue-50);padding:4px 14px;border-radius:999px}.article-meta a.cat-link:hover{background:var(--blue-100)}.article-body{font-size:1.01rem}.article-body h2{font-size:1.42rem;font-weight:700;color:var(--ink);margin:40px 0 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p{color:rgba(255,255,255,0.78);max-width:640px}.count-badge{display:inline-block;background:rgba(255,255,255,0.14);border:1px solid rgba(255,255,255,0.3);border-radius:999px;font-size:0.8rem;font-weight:600;letter-spacing:0.06em;text-transform:uppercase;padding:7px 18px}.related{padding-bottom:20px}.site-footer{background:var(--navy-950);color:#aebdd4;margin-top:64px}.footer-top{height:1px;background:linear-gradient(90deg,transparent,var(--blue-400),transparent);opacity:0.5}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:60px 24px 44px}.footer-brand .logo{color:#fff;margin-bottom:14px}.footer-brand p{font-size:0.9rem;line-height:1.7;color:#8fa1bd;max-width:300px}.footer-mini-stats{display:flex;gap:26px;margin-top:20px}.footer-mini-stats div strong{display:block;color:#fff;font-size:1.25rem;font-weight:800}.footer-mini-stats div span{font-size:0.74rem;letter-spacing:0.06em;text-transform:uppercase;color:#7b8aa0}.footer-grid h4{color:#fff;font-size:0.82rem;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;margin-bottom:18px}.footer-grid .flinks a{display:block;color:#aebdd4;text-decoration:none;font-size:0.9rem;margin-bottom:11px;transition:0.18s}.footer-grid .flinks a:hover{color:#fff;transform:translateX(3px)}.footer-grid .flinks a span{color:#5f7191;font-size:0.78em}.footer-bar{border-top:1px solid rgba(255,255,255,0.08);padding:20px 0}.footer-bar .wrap{display:flex;flex-wrap:wrap;gap:8px 24px;align-items:center;justify-content:space-between;font-size:0.82rem;color:#7b8aa0}.footer-bar a{color:#aebdd4;text-decoration:none;margin-left:18px}.footer-bar a:hover{color:#fff}#toTop{position:fixed;right:26px;bottom:26px;z-index:90;width:50px;height:50px;border-radius:50%;border:none;cursor:pointer;background:var(--grad-brand);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 12px 28px rgba(43,108,176,0.45);opacity:0;transform:translateY(14px);pointer-events:none;transition:opacity 0.25s ease,transform 0.25s ease}#toTop.show{opacity:1;transform:none;pointer-events:auto}#toTop svg{width:20px;height:20px}.js .reveal{opacity:0;transform:translateY(22px);transition:opacity 0.55s ease,transform 0.55s ease}.js .reveal.in{opacity:1;transform:none}@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}@media (max-width:1080px){.article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:30px}}@media (max-width:1000px){.article-layout{grid-template-columns:1fr}.article,.toc-side,.breadcrumb{grid-column:1;grid-row:auto}.toc-sticky{position:static}.toc-side{order:-1;margin-top:22px}.article{order:0}.breadcrumb{order:-2}}@media (max-width:860px){.nav-toggle{display:inline-flex}.main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 20px 20px;border-bottom:1px solid var(--line);box-shadow:0 24px 44px rgba(13,30,60,0.12);gap:2px}.site-header.nav-open .main-nav{display:flex}.main-nav a{padding:12px 10px;border-radius:8px}.main-nav a::after{display:none}.header-inner{position:relative}.footer-grid{grid-template-columns:1fr 1fr}}@media (max-width:640px){.wrap{padding:0 18px}.hero{padding:68px 0 60px}.article{padding:28px 22px;border-radius:18px}.card-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px}.card-body{padding:14px 14px 16px}.card-body h3{font-size:0.9rem}.card-body p{display:none}.card-foot{border:none;margin:0;padding:0}.card-go{display:none}.gallery{grid-template-columns:repeat(2,1fr);gap:10px}.gallery .dl-btn{font-size:0.76rem;padding:9px 16px}.footer-grid{grid-template-columns:1fr;gap:30px;padding:48px 24px 34px}.hero-stats{gap:10px 26px}#toTop{right:16px;bottom:16px;width:46px;height:46px}}@media (max-width:860px){.logo-badge{width:38px;height:38px}.wordmark{font-size:1.24rem}.nav-drop-btn{display:none}.nav-drop-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;border-radius:0;padding:2px 0 2px 14px;min-width:0;background:transparent}.nav-drop-menu::before{display:none}.nav-drop-menu a{border-left:2px solid var(--line);border-radius:0 10px 10px 0}.nav-drop-menu a:hover{transform:none}}