:root{--blue:#0B3D91;--ink:#101827;--muted:#64748b;--line:#e2e8f0;--paper:#f8fafc;--white:#fff;--accent:#e5484d}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}
    body.drawer-lock{overflow:hidden}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{background:#071a3d;color:#dbeafe;font-size:13px}
    .topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .topbar-contact{display:flex;gap:20px}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;white-space:nowrap;color:var(--blue)}
    .logo img{width:34px;height:34px;object-fit:contain}
    .logo span{font-size:18px}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:center;justify-content:center;gap:3px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:block;padding:27px 13px;font-size:14px;font-weight:650;color:#25324a}
    .nav-link:hover{color:var(--blue)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%);width:350px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:0 0 16px 16px;box-shadow:0 18px 45px #0f172a1c;opacity:0;visibility:hidden;pointer-events:none;transition:.2s;z-index:30}
    .mega-menu{width:min(900px,calc(100vw - 40px))}
    .nav-item:hover>.dropdown-panel,.nav-item:focus-within>.dropdown-panel,.nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{opacity:1;visibility:visible;pointer-events:auto}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-18px;height:18px}
    .dropdown-title,.mega-title{font-size:18px;margin:0 0 13px;color:var(--blue)}
    .dropdown-list{display:grid;gap:9px}
    .dropdown-list a{font-size:14px;border-bottom:1px solid var(--line);padding-bottom:8px}
    .panel-more{display:inline-block;margin-top:15px;color:var(--blue);font-weight:700;font-size:13px}
    .mega-grid{display:grid;grid-template-columns:230px 1fr;gap:22px}
    .mega-intro p{font-size:13px;color:var(--muted);margin:0 0 14px}
    .mega-intro>a{font-size:13px;color:var(--blue);font-weight:750}
    .mega-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{min-width:0;padding:11px;border:1px solid var(--line);border-radius:10px;background:#fbfdff}
    .mega-card:hover{border-color:#9ab5e9;transform:translateY(-2px)}
    .mega-card img{width:30px;height:30px;object-fit:contain;margin-bottom:7px}
    .mega-card .video-thumb,.mega-card .product-thumb{width:100%;height:66px;object-fit:cover;border-radius:7px}
    .mega-card strong{display:block;font-size:13px;line-height:1.35;margin-bottom:4px}
    .mega-card p{font-size:11px;color:var(--muted);margin:0;line-height:1.4}
    .mega-meta{display:flex;justify-content:space-between;gap:5px;color:var(--blue);font-size:10px;margin-top:7px}
    .category-links{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:16px}
    .category-links a{font-size:12px;padding:5px 9px;background:#eff6ff;border-radius:99px;color:var(--blue)}
    .header-btns{display:flex;align-items:center;gap:10px}
    .open-account{background:var(--blue);color:#fff;padding:10px 15px;border-radius:8px;font-size:13px;font-weight:750}
    .hamburger{display:none;border:0;background:none;padding:8px;cursor:pointer}
    .hamburger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}
    .hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
    .drawer-overlay{position:fixed;inset:0;background:#071a3d99;opacity:0;visibility:hidden;transition:.2s;z-index:40}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(370px,88vw);height:100vh;background:#fff;transform:translateX(100%);transition:.25s;z-index:41;overflow:auto}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:13px;padding:20px;border-bottom:1px solid var(--line);font-weight:750}
    .drawer-head>a{margin-left:auto;color:var(--blue);font-size:13px}
    .drawer-close{border:0;background:none;font-size:28px;line-height:1;cursor:pointer}
    .drawer-menu{padding:12px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;font-weight:650;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--blue);font-size:20px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:6px 0 8px 14px}
    .drawer-submenu.open{display:grid}
    .drawer-submenu a{padding:8px 0;color:var(--muted);font-size:14px}
    .footer{margin-top:70px;background:#071a3d;color:#dbeafe}
    .footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px;padding:52px 0 42px}
    .footer .logo{color:#fff}
    .footer-brand p{max-width:340px;color:#a9bddf;font-size:13px}
    .social-links{color:#fff}
    .footer h3{color:#fff;font-size:14px;margin:5px 0 15px}
    .footer-links{display:grid;gap:8px}
    .footer-links a,.footer-contact span{color:#a9bddf;font-size:13px}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-contact{display:grid;gap:10px}
    .footer-contact a{color:#fff}
    .footer-bottom{border-top:1px solid #29436e;display:flex;justify-content:space-between;gap:20px;padding:18px 0;color:#9bb1d5;font-size:12px}
    .footer-bottom-links{display:flex;gap:16px}
    .article-page{padding:58px 0 0}
    .article-wrap{width:min(900px,100%);margin:auto}
    .article-kicker{display:inline-flex;padding:6px 11px;border-radius:99px;background:#dbeafe;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase}
    .article-page h1{font-size:clamp(34px,5vw,64px);line-height:1.08;letter-spacing:-.045em;margin:18px 0 17px;max-width:850px}
    .article-lead{font-size:19px;color:var(--muted);max-width:760px;margin:0 0 22px}
    .article-meta{display:flex;flex-wrap:wrap;gap:15px;color:var(--muted);font-size:13px;padding:15px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .article-cover{width:100%;max-height:500px;object-fit:cover;border-radius:18px;margin:30px 0}
    .article-content{min-width:0;max-width:100%;overflow-x:auto;font-size:17px;color:#263247}
    .article-content img,.article-content table{max-width:100%}
    .article-content h2{font-size:30px;line-height:1.2;color:var(--ink);margin:34px 0 12px}
    .article-content h3{font-size:23px;color:var(--ink);margin:26px 0 10px}
    .article-content p{margin:0 0 19px}
    .article-content blockquote{margin:25px 0;padding:18px 22px;border-left:4px solid var(--accent);background:#fff7f5;color:#4b5563}
    .article-tags{display:flex;flex-wrap:wrap;gap:8px;margin:30px 0}
    .article-tags a{padding:7px 11px;border:1px solid #bfd2f4;border-radius:99px;color:var(--blue);font-size:12px}
    .article-nav{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:36px}
    .article-nav a{padding:17px;background:#fff;border:1px solid var(--line);border-radius:12px}
    .article-nav small{display:block;color:var(--muted);margin-bottom:5px}
    .article-nav strong{font-size:14px}
    .related{margin-top:48px}
    .related h2{font-size:25px}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .related-card{background:#fff;border:1px solid var(--line);border-radius:13px;padding:14px}
    .related-card img{height:135px;width:100%;object-fit:cover;border-radius:9px;margin-bottom:10px}
    .related-card h3{font-size:15px;line-height:1.35;margin:0 0 8px}
    .related-card p{font-size:12px;color:var(--muted);margin:0}
    @media(max-width:980px){
      .main-nav{display:none}.hamburger{display:block}.header-btns{margin-left:auto}
      .footer-main{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:620px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{padding:8px 0;align-items:flex-start}.topbar-contact{gap:8px;flex-direction:column;text-align:right}
      .header-inner{min-height:66px}.open-account{display:none}
      .article-page{padding-top:35px}.article-page h1{font-size:39px}.article-lead{font-size:17px}
      .article-nav,.related-grid{grid-template-columns:1fr}
      .footer-main{grid-template-columns:1fr;gap:25px;padding:38px 0 30px}
      .footer-bottom{display:grid}.footer-bottom-links{flex-wrap:wrap}
    }