:root{
      --theme:#0B3D91;
      --ink:#182235;
      --muted:#697386;
      --line:#e5e9f0;
      --paper:#f7f9fc;
      --white:#fff;
      --shadow:0 14px 45px rgba(22,42,75,.09);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f6f8fb;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{background:#10213d;color:#dfe9f8;font-size:13px}
    .topbar .container{min-height:38px;display:flex;justify-content:space-between;align-items:center;gap:20px}
    .topbar a{color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:76px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--theme);white-space:nowrap}
    .logo img{width:38px;height:38px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:center;justify-content:center;gap:3px;list-style:none;padding:0;margin:0}
    .nav-item{position:relative}
    .nav-link{display:block;padding:26px 14px;color:#26344c;font-size:15px;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"⌄";font-size:12px;margin-left:6px;color:#8994a5}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% + 1px);left:50%;transform:translate(-50%,8px);width:330px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:0 0 12px 12px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.2s;pointer-events:none}
    .mega-menu{width:660px}
    .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;transform:translate(-50%,0);pointer-events:auto}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
    .menu-title{margin:0 0 12px;color:var(--theme);font-weight:800;font-size:14px}
    .menu-list{display:grid;gap:8px}
    .menu-list a{display:block;color:#44536b;font-size:14px;padding:5px 0}
    .menu-list a:hover,.mega-card:hover{color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{display:block;min-height:74px;padding:10px;border:1px solid var(--line);border-radius:8px;color:#3b4960;font-size:13px;background:#fbfcfe}
    .mega-card img{width:28px;height:28px;object-fit:contain;margin-bottom:5px}
    .mega-card b{font-size:13px;color:#26344c}
    .mega-card small{font-size:11px;color:#7b8798}
    .mega-footer{display:block;margin-top:16px;padding-top:12px;border-top:1px solid var(--line);color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px;white-space:nowrap}
    .member{color:var(--theme);font-size:14px}
    .open-account{padding:9px 16px;color:#fff;background:var(--theme);border-radius:6px;font-size:14px}
    .hamburger{display:none;width:40px;height:38px;padding:8px;border:1px solid var(--line);background:#fff;border-radius:6px;cursor:pointer}
    .hamburger span{display:block;width:22px;height:2px;margin:4px auto;background:var(--theme);transition:.2s}
    .mobile-drawer{position:fixed;top:0;right:-360px;z-index:50;width:min(360px,88vw);height:100vh;overflow:auto;background:#fff;transition:right .25s;box-shadow:-12px 0 35px rgba(0,0,0,.16)}
    .mobile-drawer.open{right:0}
    .drawer-overlay{position:fixed;inset:0;z-index:40;background:rgba(7,19,39,.48);opacity:0;visibility:hidden;transition:.25s}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .drawer-head{display:flex;align-items:center;gap:15px;padding:20px;border-bottom:1px solid var(--line);font-weight:800;color:var(--theme)}
    .drawer-head a{margin-left:auto;color:var(--theme);font-size:14px}
    .drawer-close{border:0;background:none;font-size:28px;color:#647187;cursor:pointer}
    .drawer-menu{padding:12px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf0f5;background:none;text-align:left;color:#27364d;font-size:15px;cursor:pointer}
    .drawer-group .drawer-toggle:after{content:"+";float:right;color:#7a8798}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 14px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:#65738a;font-size:14px}
    .article-page{padding:54px 0 80px}
    .article-wrap{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:34px;align-items:start}
    .article-main,.article-side{background:#fff;border:1px solid var(--line);box-shadow:0 8px 28px rgba(30,53,91,.05)}
    .article-main{padding:42px 48px}
    .article-kicker{display:inline-flex;align-items:center;gap:8px;padding:5px 11px;border-radius:4px;background:#edf3fc;color:var(--theme);font-size:13px;font-weight:700}
    .article-kicker:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--theme)}
    .article-title{margin:18px 0 14px;color:#13233e;font-size:clamp(28px,4vw,44px);line-height:1.3;letter-spacing:-.02em}
    .article-meta{display:flex;flex-wrap:wrap;gap:16px;padding-bottom:22px;border-bottom:1px solid var(--line);color:var(--muted);font-size:13px}
    .article-cover{width:100%;max-height:430px;object-fit:cover;margin:28px 0;border-radius:8px;background:#eef2f8}
    .article-content{min-width:0;max-width:100%;overflow-x:auto;color:#37445a;font-size:16px}
    .article-content h2{margin:34px 0 14px;padding-left:14px;border-left:4px solid var(--theme);color:#172b4b;font-size:24px}
    .article-content h3{margin:26px 0 10px;color:#20375e;font-size:19px}
    .article-content p{margin:0 0 20px}
    .article-content img,.article-content table{max-width:100%}
    .article-content blockquote{margin:24px 0;padding:16px 20px;border-left:4px solid #7c9ed4;background:#f3f7fd;color:#50627d}
    .article-content ul,.article-content ol{padding-left:24px}
    .article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:34px;padding-top:20px;border-top:1px solid var(--line)}
    .article-tags a{padding:5px 11px;background:#f1f4f8;color:#5c6b82;border-radius:4px;font-size:13px}
    .article-tags a:hover{background:#e5eefb;color:var(--theme)}
    .article-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line)}
    .article-nav a{display:block;padding:14px;background:#f7f9fc;border-radius:6px;color:#485973;font-size:14px}
    .article-nav a:last-child{text-align:right}
    .article-nav span{display:block;margin-bottom:3px;color:#8a96a8;font-size:12px}
    .article-side{padding:24px}
    .side-title{margin:0 0 16px;padding-bottom:12px;border-bottom:2px solid var(--theme);font-size:18px;color:#182d50}
    .side-card{padding:14px 0;border-bottom:1px solid var(--line)}
    .side-card:last-child{border-bottom:0}
    .side-card a{display:block;color:#354b6e;font-size:14px;line-height:1.55}
    .side-card a:hover{color:var(--theme)}
    .side-card small{display:block;margin-top:5px;color:#8a95a5;font-size:12px}
    .footer{padding:48px 0 20px;background:#10213d;color:#b9c7da}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer h3{margin:0 0 15px;color:#fff;font-size:16px}
    .footer p{margin:0 0 10px;font-size:13px;line-height:1.8}
    .footer-grid>div>a{display:block;margin:7px 0;color:#b9c7da;font-size:13px}
    .footer-grid>div>a:hover{color:#fff}
    .footer-bottom{margin-top:35px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);font-size:12px;color:#92a4bc}
    @media(max-width:1050px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
      .article-wrap{grid-template-columns:minmax(0,1fr)}
      .article-side{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
      .article-side .side-title{grid-column:1/-1;margin-bottom:0}
    }
    @media(max-width:700px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{min-height:52px;display:block;padding:8px 0;font-size:12px}
      .topbar .container span{display:block}
      .header-inner{min-height:66px;gap:10px}
      .logo{font-size:17px}
      .logo img{width:32px;height:32px}
      .member{display:none}
      .open-account{padding:8px 11px;font-size:13px}
      .article-page{padding:24px 0 50px}
      .article-main{padding:25px 20px}
      .article-title{font-size:29px}
      .article-meta{gap:8px 13px}
      .article-content{font-size:15px}
      .article-side{display:block;padding:20px}
      .article-nav{grid-template-columns:1fr}
      .article-nav a:last-child{text-align:left}
      .footer{padding-top:35px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px 18px}
      .footer-grid>div:first-child{grid-column:1/-1}
    }