:root{
      --theme:#0B3D91;
      --ink:#172033;
      --muted:#6c778b;
      --line:#e3e8f0;
      --soft:#f4f7fb;
      --white:#fff;
      --shadow:0 16px 42px rgba(18,42,82,.09);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f7f9fc;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{background:#10233f;color:#cbd7e8;font-size:13px}
    .topbar .container{height:38px;display:flex;align-items:center;justify-content:space-between}
    .topbar-links{display:flex;gap:22px}
    .topbar a{color:#dce7f7}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{height:76px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:10px;min-width:180px;color:var(--theme);font-size:19px;font-weight:800}
    .logo img{width:36px;height:36px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:center;justify-content:center;gap:4px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:block;padding:24px 14px;color:#344158;font-size:14px;font-weight:600;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"";display:inline-block;width:6px;height:6px;margin:0 0 3px 8px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%);width:270px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:0 0 14px 14px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.2s;z-index:30}
    .mega-menu{width:560px}
    .nav-item:after{content:"";position:absolute;left:0;right:0;top:100%;height:12px}
    .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}
    .dropdown-panel a{display:block;padding:8px 4px;border-bottom:1px solid #edf0f5;font-size:13px}
    .dropdown-panel a:last-child{border:0;color:var(--theme);font-weight:700}
    .mega-title{margin:0 0 12px;color:var(--theme);font-size:14px;font-weight:800}
    .mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}
    .mega-card{display:block;min-height:58px;padding:10px 12px;background:#f6f8fc;border:1px solid #e6ebf3;border-radius:9px;font-size:12px;line-height:1.45}
    .mega-card:hover{border-color:#a9bfdf;background:#eef4fd}
    .mega-card strong{font-size:13px}
    .mega-card img{width:22px;height:22px;object-fit:contain;vertical-align:middle;margin-right:5px}
    .mega-footer{display:block;margin-top:15px;color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:9px}
    .member-btn,.account-btn{padding:8px 13px;border-radius:7px;font-size:13px;font-weight:700}
    .member-btn{color:var(--theme);background:#edf3fc}
    .account-btn{color:#fff;background:var(--theme)}
    .hamburger{display:none;width:42px;height:40px;border:1px solid var(--line);border-radius:7px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:20px;height:2px;margin:4px auto;background:var(--theme);transition:.2s}
    .drawer-overlay{display:none;position:fixed;inset:0;background:rgba(8,22,45,.46);z-index:40}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:-360px;width:min(350px,88vw);height:100vh;overflow:auto;background:#fff;z-index:41;transition:right .25s;box-shadow:-12px 0 35px rgba(0,0,0,.15)}
    .mobile-drawer.open{right:0}
    .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px;border-bottom:1px solid var(--line);font-weight:800;color:var(--theme)}
    .drawer-head a{margin-left:auto;margin-right:16px;color:var(--theme);font-size:13px}
    .drawer-close{border:0;background:none;font-size:28px;color:#566176;cursor:pointer}
    .drawer-menu{padding:12px 20px 35px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf0f4;background:none;text-align:left;color:#26344b;font-size:15px;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px;line-height:20px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 6px 15px;background:#f8fafd}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 5px;color:#5c6a7e;font-size:13px}
    .footer{margin-top:70px;padding:48px 0 20px;background:#10233f;color:#b9c8dc}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:38px}
    .footer h3,.footer h4{margin:0 0 15px;color:#fff}
    .footer h3{font-size:20px}
    .footer h4{font-size:14px}
    .footer p{margin:7px 0;font-size:13px}
    .footer-grid>div>a{display:block;margin:7px 0;color:#b9c8dc;font-size:13px}
    .footer-grid>div>a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:35px;padding-top:17px;border-top:1px solid rgba(255,255,255,.14);font-size:12px;color:#91a5bf}
    .article-page{padding:42px 0 0}
    .article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:30px;align-items:start}
    .article-main,.article-side{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 9px 30px rgba(26,49,86,.05)}
    .article-main{padding:34px 42px}
    .article-kicker{display:inline-flex;align-items:center;padding:5px 12px;border-radius:20px;background:#edf3fc;color:var(--theme);font-size:12px;font-weight:700}
    .article-title{margin:17px 0 12px;color:#16243b;font-size:clamp(28px,4vw,42px);line-height:1.3;letter-spacing:-.5px}
    .article-meta{display:flex;flex-wrap:wrap;gap:12px 22px;padding:13px 0 20px;border-bottom:1px solid var(--line);color:var(--muted);font-size:13px}
    .article-meta span{display:inline-flex;align-items:center;gap:5px}
    .article-cover{margin:25px 0;border-radius:12px;overflow:hidden;background:#eef3fa;text-align:center}
    .article-cover img{display:block;width:100%;max-height:430px;object-fit:cover}
    .article-content{min-width:0;max-width:100%;overflow-x:auto;padding-top:4px;color:#354359;font-size:16px}
    .article-content p{margin:0 0 1.2em}
    .article-content h2,.article-content h3{color:#172b4a;line-height:1.4;margin:1.6em 0 .7em}
    .article-content blockquote{margin:1.4em 0;padding:14px 18px;border-left:4px solid var(--theme);background:#f2f6fc;color:#53637a}
    .article-content table{max-width:100%;border-collapse:collapse}
    .article-content td,.article-content th{padding:8px 12px;border:1px solid var(--line)}
    .article-content img{max-width:100%;height:auto}
    .article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px;padding-top:20px;border-top:1px solid var(--line)}
    .article-tags a{padding:5px 11px;background:#f1f4f8;border-radius:20px;color:var(--theme);font-size:12px}
    .article-side{padding:22px;position:sticky;top:20px}
    .side-title{margin:0 0 15px;padding-bottom:11px;border-bottom:2px solid var(--theme);font-size:17px}
    .side-card{display:block;padding:13px 0;border-bottom:1px solid #edf0f4}
    .side-card:last-child{border-bottom:0}
    .side-card strong{display:block;font-size:14px;line-height:1.5}
    .side-card span{display:block;margin-top:4px;color:var(--muted);font-size:12px}
    .article-pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px}
    .pager-item{padding:14px;border:1px solid var(--line);border-radius:10px;background:#fafbfd;font-size:13px}
    .pager-item.next{text-align:right}
    .pager-label{display:block;margin-bottom:4px;color:var(--theme);font-size:12px;font-weight:700}
    @media(max-width:1050px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{justify-content:space-between}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:760px){
      .container{width:min(100% - 28px,620px)}
      .topbar .container{height:auto;min-height:38px;padding:7px 0;align-items:flex-start}
      .topbar-links{gap:8px;flex-direction:column}
      .header-inner{height:68px;gap:10px}
      .logo{min-width:0;font-size:16px}
      .logo img{width:30px;height:30px}
      .member-btn{display:none}
      .article-page{padding-top:22px}
      .article-wrap{display:block}
      .article-main{padding:24px 20px}
      .article-side{position:static;margin-top:20px}
      .article-title{font-size:29px}
      .article-content{font-size:15px}
      .article-pager{grid-template-columns:1fr}
      .pager-item.next{text-align:left}
      .footer{margin-top:40px;padding-top:35px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:26px 18px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:440px){
      .footer-grid{grid-template-columns:1fr}
      .topbar-links a{font-size:11px}
    }