:root{
      --theme:#0B3D91;
      --theme-dark:#082b66;
      --ink:#172238;
      --muted:#667085;
      --line:#e4e9f1;
      --soft:#f4f7fb;
      --white:#fff;
      --shadow:0 16px 40px rgba(20,42,78,.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:1.6}
    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:#10264b;color:#dce8fb;font-size:13px}
    .topbar .container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar a{color:#dce8fb;margin-left:20px}
    .topbar a:hover{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:30px}
    .logo{display:flex;align-items:center;gap:10px;min-width:190px;font-weight:800;color:var(--theme);font-size:19px}
    .logo img{width:38px;height:38px;object-fit:contain;border-radius:9px}
    .main-nav{margin-left:auto}
    .nav-list{list-style:none;display:flex;align-items:center;gap:4px;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:6px;padding:26px 13px;font-size:14px;font-weight:600;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{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-top:-4px}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%);display:none;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:0 0 16px 16px;padding:18px;z-index:30}
    .dropdown-panel{width:260px}
    .dropdown-panel a{display:block;padding:9px 10px;border-bottom:1px solid #edf1f6;font-size:13px}
    .dropdown-panel a:last-child{border:0;color:var(--theme);font-weight:700}
    .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{display:block}
    .mega-menu:before{content:"";position:absolute;left:0;right:0;top:-14px;height:14px}
    .mega-title{font-weight:800;color:var(--theme-dark);font-size:14px;margin:0 0 10px}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:15px}
    .mega-card{min-width:0;padding:10px;border:1px solid #e8edf4;border-radius:10px;background:#fbfcfe}
    .mega-card:hover{border-color:#a9bfe4;background:#f3f7fd}
    .mega-card img{width:28px;height:28px;object-fit:contain;border-radius:6px;margin-bottom:5px}
    .mega-card strong,.mega-card small{display:block;overflow:hidden;text-overflow:ellipsis}
    .mega-card strong{font-size:12px;white-space:nowrap}
    .mega-card small{font-size:11px;color:var(--muted);line-height:1.45;margin-top:3px}
    .mega-footer{display:block;padding-top:11px;border-top:1px solid var(--line);color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:9px}
    .member-btn,.open-btn{padding:9px 13px;border-radius:8px;font-size:13px;font-weight:700;white-space:nowrap}
    .member-btn{color:var(--theme);border:1px solid #c9d7ed}
    .open-btn{background:var(--theme);color:#fff}
    .open-btn:hover{background:var(--theme-dark)}
    .hamburger{display:none;width:42px;height:40px;border:1px solid var(--line);background:#fff;border-radius:8px;padding:9px}
    .hamburger span{display:block;height:2px;background:var(--theme);margin:5px 0;transition:.2s}

    .drawer-overlay{display:none;position:fixed;inset:0;background:rgba(7,22,46,.48);z-index:50}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(360px,88vw);height:100vh;background:#fff;z-index:60;transform:translateX(100%);transition:transform .25s ease;overflow:auto;box-shadow:-12px 0 35px rgba(0,0,0,.16)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{height:68px;display:flex;align-items:center;gap:14px;padding:0 18px;border-bottom:1px solid var(--line);font-weight:800;color:var(--theme)}
    .drawer-head>a{margin-left:auto;background:var(--theme);color:#fff;border-radius:7px;padding:6px 11px;font-size:13px}
    .drawer-close{border:0;background:transparent;font-size:28px;line-height:1;color:#627085;cursor:pointer}
    .drawer-menu{padding:12px 18px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf1f6;background:transparent;text-align:left;color:var(--ink);font-weight:700;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px;font-weight:400}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 15px;border-bottom:1px solid #edf1f6}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:13px}

    .category-page{padding:58px 0 80px}
    .category-head{text-align:center;max-width:760px;margin:0 auto 36px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--theme);background:#eaf1fd;border-radius:999px;padding:6px 13px;font-size:12px;font-weight:800;letter-spacing:.04em}
    .eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--theme)}
    .category-head h1{margin:15px 0 10px;font-size:clamp(30px,4vw,46px);line-height:1.2;color:#10264b}
    .category-head p{margin:0;color:var(--muted);font-size:16px}
    .category-meta{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:18px}
    .category-meta span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-size:12px;color:#58677d}

    .article-list{display:grid;gap:18px}
    .article-card{display:grid;grid-template-columns:300px minmax(0,1fr);gap:24px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 24px rgba(20,42,78,.04);transition:transform .2s,box-shadow .2s}
    .article-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .article-cover{min-height:190px;border-radius:11px;overflow:hidden;background:#dce8f8}
    .article-cover img{width:100%;height:100%;min-height:190px;object-fit:cover}
    .article-body{min-width:0;display:flex;flex-direction:column;align-items:flex-start}
    .article-channel{display:inline-block;color:var(--theme);background:#edf3fc;border-radius:5px;padding:4px 9px;font-size:12px;font-weight:700}
    .article-body h2{font-size:22px;line-height:1.35;margin:10px 0 8px;color:#162d55}
    .article-body h2 a:hover{color:var(--theme)}
    .article-summary{margin:0;color:#637087;font-size:14px;line-height:1.8;min-height:50px}
    .article-info{display:flex;flex-wrap:wrap;gap:12px;margin:15px 0 11px;color:#7a8799;font-size:12px}
    .article-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:15px}
    .article-tags span{border:1px solid #dbe4f1;border-radius:999px;padding:3px 9px;color:#65758c;font-size:11px;background:#fbfcfe}
    .read-more{display:inline-flex;align-items:center;gap:8px;margin-top:auto;color:var(--theme);font-size:13px;font-weight:800}
    .read-more:after{content:"→";font-size:18px;transition:transform .2s}
    .read-more:hover:after{transform:translateX(4px)}
    .pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:36px}
    .pagination a{min-width:38px;text-align:center;padding:8px 12px;border:1px solid var(--line);background:#fff;border-radius:8px;color:#52637b;font-size:13px}
    .pagination a:hover,.pagination a.active{background:var(--theme);border-color:var(--theme);color:#fff}

    .footer{background:#0d1e3c;color:#c9d5e9;padding:52px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:35px}
    .footer-brand strong{display:block;color:#fff;font-size:20px;margin-bottom:12px}
    .footer p{margin:7px 0;color:#aebdd3;font-size:13px}
    .footer h3{margin:0 0 14px;color:#fff;font-size:15px}
    .footer-grid>div:not(.footer-brand) a{display:block;color:#b5c4da;font-size:13px;margin:8px 0}
    .footer-grid a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:35px;padding-top:18px;color:#91a2bd;font-size:12px;text-align:center}

    @media (max-width:1050px){
      .main-nav{display:none}
      .header-btns{margin-left:auto}
      .hamburger{display:block}
      .article-card{grid-template-columns:250px minmax(0,1fr)}
    }
    @media (max-width:700px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{min-height:44px;align-items:flex-start;justify-content:center;flex-direction:column;gap:0;padding:7px 0}
      .topbar a{margin-left:10px}
      .header-inner{min-height:68px;gap:10px}
      .logo{min-width:0;font-size:16px}
      .logo img{width:32px;height:32px}
      .member-btn{display:none}
      .open-btn{padding:8px 10px;font-size:12px}
      .category-page{padding:38px 0 55px}
      .category-head{margin-bottom:25px}
      .category-head h1{font-size:31px}
      .category-head p{font-size:14px}
      .article-card{grid-template-columns:1fr;gap:15px;padding:13px}
      .article-cover,.article-cover img{min-height:190px;height:190px}
      .article-body h2{font-size:19px}
      .article-summary{font-size:13px}
      .footer{padding-top:38px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px 18px}
      .footer-brand{grid-column:1/-1}
    }
    @media (max-width:420px){
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .article-info{gap:8px}
    }