:root{
      --theme:#0B3D91;
      --ink:#172235;
      --muted:#68758a;
      --line:#e4e9f0;
      --soft:#f5f7fb;
      --white:#fff;
      --shadow:0 16px 44px rgba(16,35,66,.09);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fff;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:#13213b;color:#dbe5f6;font-size:13px}
    .topbar .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar a{margin-left:20px;color:#f3f7ff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;font-size:19px;font-weight:800;color:var(--theme)}
    .logo img{width:38px;height:38px;object-fit:contain}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:stretch;gap:4px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:5px;padding:27px 13px;font-size:14px;font-weight:600;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"⌄";font-size:13px;color:#8994a4}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% + 1px);left:50%;transform:translateX(-50%) translateY(8px);width:290px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:0 0 12px 12px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease}
    .mega-menu{width:560px}
    .nav-item:focus-within .dropdown-panel,.nav-item:hover .dropdown-panel,.nav-item:focus-within .mega-menu,.nav-item:hover .mega-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
    .drop-title,.mega-title{margin:0 0 12px;font-weight:800;color:var(--theme);font-size:15px}
    .drop-link{display:block;padding:7px 0;color:#47566c;font-size:13px;border-bottom:1px solid #f0f2f6}
    .drop-link:hover{color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
    .mega-card{display:flex;gap:9px;padding:10px;border:1px solid #edf0f5;border-radius:9px;background:#fbfcfe}
    .mega-card:hover{border-color:#b9cbed;background:#f5f8ff}
    .mega-card img{width:32px;height:32px;object-fit:contain;flex:0 0 32px}
    .mega-card strong,.mega-card small{display:block}
    .mega-card strong{font-size:13px}
    .mega-card small{color:var(--muted);font-size:11px;line-height:1.45}
    .mega-menu>.drop-link small{display:block;color:var(--muted);font-size:11px}
    .mega-footer{display:block;margin-top:14px;padding-top:12px;border-top:1px solid var(--line);color:var(--theme);font-weight:700;font-size:13px}
    .header-btns{display:flex;align-items:center;gap:9px}
    .member-btn,.open-btn{padding:8px 13px;border-radius:7px;font-size:13px;white-space:nowrap}
    .member-btn{color:var(--theme);border:1px solid #c9d6ec}
    .open-btn{color:#fff;background:var(--theme)}
    .hamburger{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:7px;background:#fff;cursor:pointer;padding:9px}
    .hamburger span{display:block;height:2px;margin:4px 0;background:var(--theme);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(10,23,43,.48);opacity:0;visibility:hidden;z-index:39;transition:.25s}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;right:0;top:0;bottom:0;width:min(390px,88vw);background:#fff;z-index:40;transform:translateX(100%);transition:.28s ease;overflow:auto}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:14px;padding:20px;border-bottom:1px solid var(--line);font-weight:800}
    .drawer-head>a{margin-left:auto;color:var(--theme);font-size:14px}
    .drawer-close{border:0;background:transparent;font-size:28px;line-height:1;color:#7a8799;cursor:pointer}
    .drawer-menu{padding:10px 20px 28px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #eef1f5;background:transparent;text-align:left;font-size:15px;color:var(--ink);cursor:pointer}
    .drawer-toggle:after{content:"＋";float:right;color:#8290a4}
    .drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:4px 0 8px 15px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:13px}
    .footer{margin-top:72px;padding:48px 0 20px;background:#111d31;color:#c8d3e5}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:34px}
    .footer h3,.footer h4{margin:0 0 14px;color:#fff}
    .footer h3{font-size:21px}
    .footer h4{font-size:15px}
    .footer p{margin:6px 0;color:#aebbd0;font-size:13px}
    .footer-grid>div>a{display:block;margin:7px 0;color:#aebbd0;font-size:13px}
    .footer a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.13);font-size:12px;color:#8f9db2}
    .tag-page{padding:58px 0 0;background:linear-gradient(180deg,#f7f9fc 0,#fff 420px)}
    .tag-page .page-heading{text-align:center;max-width:760px;margin:0 auto 38px}
    .tag-page .eyebrow{display:inline-block;padding:5px 13px;border-radius:30px;background:#e8effb;color:var(--theme);font-size:12px;font-weight:800;letter-spacing:.08em}
    .tag-page h1{margin:13px 0 8px;font-size:clamp(30px,5vw,48px);line-height:1.2;letter-spacing:-.03em}
    .tag-page .intro{margin:0;color:var(--muted);font-size:15px}
    .tag-page .tag-count{display:inline-block;margin-top:15px;color:#6d7b8f;font-size:13px}
    .tag-page .article-list{display:grid;gap:18px;max-width:980px;margin:0 auto}
    .tag-page .article-card{display:grid;grid-template-columns:270px 1fr;min-height:190px;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 9px 28px rgba(22,42,74,.06);transition:.2s}
    .tag-page .article-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c4d3ed}
    .tag-page .article-cover{height:100%;min-height:190px;background:#e9eef6;object-fit:cover}
    .tag-page .article-body{padding:20px 23px}
    .tag-page .article-label{display:inline-block;margin-bottom:7px;color:var(--theme);font-size:12px;font-weight:800}
    .tag-page .article-body h2{margin:0 0 8px;font-size:20px;line-height:1.4}
    .tag-page .article-summary{margin:0 0 13px;color:#66748a;font-size:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
    .tag-page .article-meta{display:flex;flex-wrap:wrap;gap:12px;color:#8a96a8;font-size:12px}
    .tag-page .article-tags{margin-top:10px;color:#6d7b8e;font-size:12px}
    .tag-page .read-more{display:inline-block;margin-top:12px;color:var(--theme);font-size:13px;font-weight:800}
    .tag-page .pagination{display:flex;justify-content:center;gap:7px;margin:38px 0 0}
    .tag-page .pagination a{min-width:35px;padding:6px 11px;border:1px solid var(--line);border-radius:6px;text-align:center;color:#627086;font-size:13px}
    .tag-page .pagination a:hover,.tag-page .pagination a.active{background:var(--theme);border-color:var(--theme);color:#fff}
    @media(max-width:1050px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
    }
    @media(max-width:640px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{align-items:flex-start;flex-direction:column;gap:0;padding:7px 0}
      .topbar a{margin-left:0;margin-right:14px}
      .header-inner{min-height:68px;gap:10px}
      .member-btn{display:none}
      .logo{font-size:16px}
      .logo img{width:32px;height:32px}
      .tag-page{padding-top:38px}
      .tag-page .article-card{grid-template-columns:1fr}
      .tag-page .article-cover{height:190px;min-height:0}
      .tag-page .article-body{padding:18px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px 18px}
      .footer-bottom{flex-direction:column;gap:5px}
    }
    @media(max-width:420px){
      .open-btn{display:none}
      .footer-grid{grid-template-columns:1fr}
    }