:root{
      --theme:#0B3D91;
      --theme-dark:#082d6b;
      --ink:#132238;
      --muted:#66758a;
      --line:#dbe4ef;
      --soft:#f4f7fb;
      --white:#fff;
      --shadow:0 14px 40px rgba(16,42,76,.09);
      --radius:16px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f8fafc;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}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{background:#081a35;color:#dce8f8;font-size:13px}
    .topbar .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-links{display:flex;gap:22px}
    .topbar a{color:#dce8f8;transition:color .2s}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid #e6edf5}
    .header-inner{min-height:76px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;min-width:190px;color:var(--theme);font-size:19px;font-weight:800;white-space:nowrap}
    .logo img{width:36px;height:36px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;justify-content:center;align-items:stretch;gap:2px;list-style:none;padding:0;margin:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;min-height:76px;padding:0 14px;color:#26374d;font-size:15px;white-space:nowrap}
    .nav-link:hover,.nav-link:focus-visible{color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg);margin:0 0 4px 9px}
    .dropdown-panel,.mega-menu{position:absolute;left:50%;top:calc(100% - 1px);transform:translate(-50%,8px);width:280px;padding:22px;background:#fff;border:1px solid #e3eaf3;border-radius:0 0 14px 14px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.22s ease}
    .mega-menu{width:650px}
    .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:translate(-50%,0)}
    .panel-title{margin:0 0 13px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.08em}
    .panel-list{display:grid;gap:9px}
    .panel-list a{display:block;padding:7px 8px;border-radius:8px;color:#33465e;font-size:14px}
    .panel-list a:hover{background:#eef4fc;color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
    .mega-card{display:flex;gap:10px;min-width:0;padding:10px;border:1px solid #e5ebf3;border-radius:10px;background:#fbfdff}
    .mega-card:hover{border-color:#9bb7df;background:#f1f6fd}
    .mega-card img{flex:0 0 38px;width:38px;height:38px;object-fit:contain;border-radius:7px;background:#eef3f9}
    .mega-card span{min-width:0}
    .mega-card strong,.mega-card small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .mega-card strong{font-size:13px;color:#17345c}
    .mega-card small{font-size:11px;color:#718096;line-height:1.5}
    .mega-footer{display:block;margin-top:16px;padding-top:13px;border-top:1px solid #e8edf4;color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px;white-space:nowrap}
    .member-link{color:var(--theme);font-size:13px;font-weight:700}
    .open-link{padding:8px 16px;border-radius:8px;background:var(--theme);color:#fff;font-size:13px;font-weight:700}
    .open-link:hover{background:var(--theme-dark)}
    .hamburger{display:none;width:42px;height:40px;border:1px solid #d8e1ee;background:#fff;border-radius:8px;padding:8px;cursor:pointer}
    .hamburger span{display:block;height:2px;background:var(--theme);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{display:none;position:fixed;inset:0;background:rgba(3,16,35,.48);z-index:80}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;z-index:90;top:0;right:0;width:min(390px,88vw);height:100vh;overflow:auto;background:#fff;transform:translateX(105%);transition:transform .25s ease;box-shadow:-12px 0 35px rgba(0,0,0,.18)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:14px;padding:20px;border-bottom:1px solid var(--line);color:var(--theme);font-weight:800}
    .drawer-head span{flex:1}
    .drawer-head a{padding:6px 12px;background:var(--theme);border-radius:6px;color:#fff;font-size:13px}
    .drawer-close{border:0;background:none;color:#607087;font-size:28px;line-height:1;cursor:pointer}
    .drawer-menu{padding:12px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 2px;border:0;border-bottom:1px solid #edf1f6;background:none;color:#26374d;text-align:left;font-size:15px;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:#8b9bb0;font-size:20px;line-height:1}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 14px;border-bottom:1px solid #edf1f6}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:#607087;font-size:14px}
    .footer{margin-top:70px;background:#091b35;color:#b9c9dc}
    .footer .container{padding:48px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px}
    .footer-brand{margin-bottom:12px;color:#fff;font-size:20px;font-weight:800}
    .footer p{margin:7px 0;color:#9fb1c7;font-size:13px}
    .footer h3{margin:0 0 13px;color:#fff;font-size:15px}
    .footer-links{display:grid;gap:7px;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(255,255,255,.14);font-size:12px;color:#8fa3bc}
    .category-page{padding:54px 0 0}
    .category-heading{padding:34px 40px;border-radius:22px;background:linear-gradient(135deg,#eaf2fc,#fff);border:1px solid #dce7f4}
    .category-heading .eyebrow{margin:0 0 8px;color:var(--theme);font-size:12px;font-weight:800;letter-spacing:.12em}
    .category-heading h1{margin:0;color:#102d55;font-size:clamp(28px,4vw,44px);line-height:1.25}
    .category-heading p{max-width:740px;margin:14px 0 0;color:var(--muted);font-size:15px}
    .category-tools{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:30px 0 18px}
    .category-tools h2{margin:0;font-size:21px;color:#1c3556}
    .category-tools span{color:#7a899c;font-size:13px}
    .article-list{display:grid;gap:18px}
    .article-card{display:grid;grid-template-columns:300px minmax(0,1fr);min-height:218px;overflow:hidden;background:#fff;border:1px solid #e1e9f2;border-radius:16px;box-shadow:0 8px 24px rgba(31,57,89,.05);transition:transform .2s,box-shadow .2s}
    .article-card:hover{transform:translateY(-3px);box-shadow:0 15px 35px rgba(24,58,101,.12)}
    .article-cover{min-height:218px;background:#e9f0f8}
    .article-cover img{width:100%;height:100%;min-height:218px;object-fit:cover}
    .article-body{min-width:0;padding:24px 28px;display:flex;flex-direction:column}
    .article-category{display:inline-flex;align-self:flex-start;margin-bottom:9px;padding:3px 9px;border-radius:20px;background:#edf4fd;color:var(--theme);font-size:12px}
    .article-title{margin:0 0 9px;font-size:21px;line-height:1.4;color:#17345d}
    .article-title a:hover{color:var(--theme)}
    .article-summary{display:-webkit-box;overflow:hidden;margin:0;color:#65758a;font-size:14px;line-height:1.8;-webkit-box-orient:vertical;-webkit-line-clamp:3}
    .article-meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:auto;padding-top:17px;color:#8290a1;font-size:12px}
    .article-meta strong{color:#53667d;font-weight:600}
    .article-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px;color:#718197;font-size:12px}
    .article-tags a{padding:2px 7px;border:1px solid #e1e8f1;border-radius:4px}
    .article-tags a:hover{border-color:#aac2e2;color:var(--theme)}
    .read-more{display:inline-block;align-self:flex-start;margin-top:13px;color:var(--theme);font-size:13px;font-weight:800}
    .read-more:after{content:" →";transition:margin .2s}
    .read-more:hover:after{margin-left:4px}
    .pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin:36px 0 8px}
    .pagination a{min-width:36px;padding:7px 11px;border:1px solid #d9e3ef;border-radius:7px;background:#fff;color:#5e7087;text-align:center;font-size:13px}
    .pagination a:hover,.pagination a.active{border-color:var(--theme);background:var(--theme);color:#fff}
    @media (max-width:1050px){
      .header-inner{gap:12px}
      .logo{min-width:160px}
      .nav-link{padding:0 8px;font-size:14px}
      .member-link{display:none}
    }
    @media (max-width:820px){
      .topbar .container{min-height:34px;font-size:11px}
      .topbar-links{gap:10px}
      .main-nav{display:none}
      .header-inner{min-height:66px}
      .header-btns{margin-left:auto}
      .hamburger{display:block}
      .open-link{padding:8px 12px}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
      .mega-menu{width:min(650px,calc(100vw - 30px))}
    }
    @media (max-width:640px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{align-items:flex-start;padding:7px 0;flex-direction:column;gap:2px}
      .topbar-links{width:100%;justify-content:space-between}
      .logo{font-size:16px;min-width:0}
      .logo img{width:31px;height:31px}
      .category-page{padding-top:28px}
      .category-heading{padding:25px 21px;border-radius:16px}
      .category-heading h1{font-size:29px}
      .category-heading p{font-size:13px}
      .category-tools{align-items:flex-start;flex-direction:column;gap:5px;margin-top:24px}
      .article-card{display:block}
      .article-cover,.article-cover img{min-height:190px;height:190px}
      .article-body{padding:19px}
      .article-title{font-size:18px}
      .article-summary{-webkit-line-clamp:4}
      .article-meta{margin-top:12px}
      .footer-grid{grid-template-columns:1fr;gap:25px}
      .footer-bottom{align-items:flex-start;flex-direction:column;gap:8px}
    }