:root{
      --primary:#0B3D91;
      --primary-deep:#062653;
      --ice:#eef7ff;
      --silver:#f7fafc;
      --ink:#10243d;
      --muted:#65758b;
      --line:#dce7f2;
      --white:#fff;
      --shadow:0 16px 42px rgba(10,48,91,.1);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f6f9fc;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{background:var(--primary-deep);color:#dbeaff;font-size:13px}
    .topbar .container{height:38px;display:flex;align-items:center;justify-content:space-between}
    .topbar-info{display:flex;gap:24px}
    .topbar a{color:#dbeaff;transition:.2s}
    .topbar a:hover{color:#fff}

    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid #e7eef6}
    .header-inner{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:11px;min-width:190px;color:var(--primary-deep);font-size:20px;font-weight:800;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:4px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:5px;padding:27px 14px;color:#31445c;font-size:15px;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--primary)}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);opacity:0;visibility:hidden;pointer-events:none;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);transition:.22s;z-index:30}
    .dropdown-panel{width:270px;padding:12px;border-radius:0 0 14px 14px}
    .dropdown-panel a{display:block;padding:10px 12px;border-radius:9px;font-size:14px}
    .dropdown-panel a:hover{background:var(--ice);color:var(--primary)}
    .mega-menu{width:700px;padding:22px;border-radius:0 0 18px 18px}
    .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;transform:translateX(-50%) translateY(0)}
    .nav-item:before{content:"";position:absolute;left:0;right:0;top:100%;height:14px}
    .mega-title{font-size:13px;font-weight:800;color:var(--primary);letter-spacing:.08em;margin-bottom:13px}
    .mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
    .mega-card{display:flex;gap:10px;padding:10px;border:1px solid #e5edf6;border-radius:12px;background:#fbfdff;transition:.2s}
    .mega-card:hover{border-color:#a9c9ed;transform:translateY(-2px)}
    .mega-card img{width:42px;height:42px;object-fit:contain;border-radius:8px;background:#edf5fd}
    .mega-card strong{display:block;font-size:13px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .mega-card small{display:block;color:var(--muted);font-size:11px;line-height:1.5;margin-top:3px}
    .mega-links{display:flex;flex-wrap:wrap;gap:8px}
    .mega-links a{padding:6px 11px;border-radius:20px;background:var(--ice);color:var(--primary);font-size:12px}
    .mega-footer{display:block;margin-top:17px;padding-top:13px;border-top:1px solid var(--line);color:var(--primary);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px}
    .member-link{color:var(--primary);font-size:13px;font-weight:700}
    .open-account{padding:9px 16px;border-radius:9px;background:var(--primary);color:#fff;font-size:13px;font-weight:700}
    .open-account:hover{background:#082f70}
    .hamburger{display:none;width:42px;height:40px;border:1px solid var(--line);border-radius:9px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:20px;height:2px;margin:4px auto;background:var(--primary-deep);transition:.2s}
    .hamburger.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

    .drawer-overlay{position:fixed;inset:0;background:rgba(2,20,43,.48);opacity:0;visibility:hidden;transition:.25s;z-index:80}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(360px,88vw);height:100vh;background:#fff;transform:translateX(100%);transition:.28s;z-index:90;overflow:auto;box-shadow:-12px 0 35px rgba(2,20,43,.18)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{height:72px;display:flex;align-items:center;gap:14px;padding:0 20px;border-bottom:1px solid var(--line);color:var(--primary);font-weight:800}
    .drawer-head>a{margin-left:auto;padding:6px 12px;border-radius:7px;background:var(--primary);color:#fff;font-size:13px}
    .drawer-close{border:0;background:none;font-size:28px;line-height:1;color:var(--muted);cursor:pointer}
    .drawer-menu{padding:14px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 3px;border:0;border-bottom:1px solid #edf2f7;background:transparent;text-align:left;color:var(--ink);font-size:15px;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--primary);font-size:20px}
    .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:8px 0;color:var(--muted);font-size:13px}

    .category-page{padding:58px 0 80px}
    .page-heading{text-align:center;max-width:760px;margin:0 auto 38px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before{content:"";width:25px;height:2px;background:var(--primary)}
    .page-heading h1{margin:0;color:var(--primary-deep);font-size:clamp(30px,4vw,48px);line-height:1.25}
    .page-heading p{margin:15px 0 0;color:var(--muted);font-size:16px}
    .category-intro{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-bottom:28px;padding:22px 26px;border:1px solid #dceafa;border-radius:var(--radius);background:linear-gradient(110deg,#eef7ff,#fff);box-shadow:0 8px 24px rgba(16,69,121,.05)}
    .category-intro strong{display:block;color:var(--primary-deep);font-size:20px}
    .category-intro p{margin:5px 0 0;color:var(--muted);font-size:14px}
    .intro-mark{width:62px;height:62px;display:grid;place-items:center;flex:0 0 62px;border-radius:18px;background:var(--primary);color:#fff;font-size:25px;font-weight:800}
    .article-list{display:grid;gap:18px}
    .article-card{display:grid;grid-template-columns:300px 1fr;gap:25px;min-height:220px;padding:18px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 7px 22px rgba(22,60,96,.05);transition:.25s}
    .article-card:hover{border-color:#a9c9ed;box-shadow:var(--shadow);transform:translateY(-3px)}
    .article-cover{height:184px;overflow:hidden;border-radius:13px;background:linear-gradient(135deg,#dceeff,#f6fbff)}
    .article-cover img{width:100%;height:100%;object-fit:cover;transition:.35s}
    .article-card:hover .article-cover img{transform:scale(1.04)}
    .article-body{min-width:0;display:flex;flex-direction:column}
    .article-label{align-self:flex-start;padding:4px 10px;border-radius:20px;background:var(--ice);color:var(--primary);font-size:12px}
    .article-body h2{margin:10px 0 8px;color:var(--primary-deep);font-size:22px;line-height:1.4}
    .article-body h2 a:hover{color:var(--primary)}
    .article-summary{display:-webkit-box;overflow:hidden;margin:0;color:var(--muted);font-size:14px;line-height:1.8;-webkit-box-orient:vertical;-webkit-line-clamp:3}
    .article-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:auto;padding-top:13px;color:#7a899a;font-size:12px}
    .article-meta span{display:inline-flex;align-items:center;gap:4px}
    .article-tags{margin-top:9px;color:var(--primary);font-size:12px}
    .read-more{align-self:flex-start;margin-top:12px;color:var(--primary);font-size:13px;font-weight:800}
    .read-more:hover{text-decoration:underline}
    .pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:40px}
    .pagination a{min-width:38px;padding:7px 12px;text-align:center;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--muted);font-size:13px}
    .pagination a:hover,.pagination a.active{border-color:var(--primary);background:var(--primary);color:#fff}

    .footer{padding:52px 0 22px;background:#071d38;color:#bdd0e4}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:38px}
    .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:800}
    .footer-brand img{width:36px;height:36px;object-fit:contain}
    .footer p{margin:16px 0 0;color:#9db5ce;font-size:13px;line-height:1.9}
    .footer h3{margin:0 0 15px;color:#fff;font-size:15px}
    .footer-links{display:grid;gap:8px;font-size:13px}
    .footer-links a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:38px;padding-top:18px;border-top:1px solid rgba(190,215,240,.16);color:#8da8c1;font-size:12px}

    @media (max-width:980px){
      .header-inner{gap:15px}
      .logo{min-width:auto}
      .main-nav{display:none}
      .header-btns{margin-left:auto}
      .hamburger{display:block}
      .mega-menu{display:none}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:680px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{height:auto;min-height:38px;padding:8px 0;align-items:flex-start;gap:8px;flex-direction:column}
      .topbar-info{gap:12px;flex-wrap:wrap}
      .header-inner{height:68px}
      .logo{font-size:17px}
      .logo img{width:32px;height:32px}
      .member-link{display:none}
      .open-account{padding:8px 11px}
      .category-page{padding:38px 0 55px}
      .page-heading{margin-bottom:25px}
      .page-heading h1{font-size:32px}
      .category-intro{align-items:flex-start;padding:18px}
      .intro-mark{width:50px;height:50px;flex-basis:50px;border-radius:14px}
      .article-card{grid-template-columns:1fr;gap:15px;padding:13px}
      .article-cover{height:190px}
      .article-body h2{font-size:19px}
      .article-meta{margin-top:12px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px 18px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{display:block;line-height:1.9}
      .footer-bottom span{display:block}
      .footer-bottom span+span{margin-top:5px}
    }
    @media (max-width:420px){
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
    }