:root{
      --primary:#0B3D91;
      --primary-dark:#07295f;
      --accent:#f28c28;
      --ink:#17243a;
      --muted:#66758c;
      --line:#dfe6ef;
      --soft:#f4f7fb;
      --white:#fff;
      --shadow:0 14px 36px rgba(19,48,87,.10);
      --radius:18px;
    }
    *{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}
    body.drawer-locked{overflow:hidden}
    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}
    .skip-link{position:absolute;left:-9999px;top:auto}
    .skip-link:focus{left:20px;top:12px;z-index:1000;background:#fff;color:var(--primary);padding:8px 14px;border-radius:6px}

    .topbar{background:#071b3c;color:#dbe8fb;font-size:13px}
    .topbar-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-contact{display:flex;gap:20px}
    .topbar a:hover{color:#fff}

    .header{position:relative;z-index:50;background:#fff;border-bottom:1px solid #e7edf5}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:inline-flex;align-items:center;gap:10px;min-width:max-content;font-weight:800;color:var(--primary);font-size:19px}
    .logo img{width:38px;height:38px;object-fit:contain}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:stretch;gap:3px;list-style:none;padding:0;margin:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:6px;padding:27px 14px;font-size:14px;font-weight:700;white-space:nowrap}
    .nav-link:hover,.nav-item:focus-within>.nav-link{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%);visibility:hidden;opacity:0;pointer-events:none;background:#fff;border:1px solid #e2e9f2;border-radius:0 0 16px 16px;box-shadow:0 18px 42px rgba(14,42,79,.16);transition:.2s ease;z-index:80}
    .dropdown-panel{width:310px;padding:18px}
    .mega-menu{width:min(760px,calc(100vw - 32px));padding:22px}
    .nav-item:after{content:"";position:absolute;height:14px;left:0;right:0;top:100%}
    .nav-item:hover>.dropdown-panel,.nav-item:hover>.mega-menu,.nav-item:focus-within>.dropdown-panel,.nav-item:focus-within>.mega-menu{visibility:visible;opacity:1;pointer-events:auto}
    .dropdown-title,.mega-heading{display:flex;flex-direction:column;gap:2px;margin-bottom:15px}
    .dropdown-title,.mega-heading strong{font-size:16px;color:var(--primary)}
    .mega-heading span{font-size:12px;color:var(--muted)}
    .dropdown-article{display:block;padding:9px 0;border-bottom:1px solid var(--line);font-size:13px}
    .dropdown-article:hover,.dropdown-more:hover{color:var(--accent)}
    .dropdown-more,.mega-footer{display:block;margin-top:14px;color:var(--primary);font-size:13px;font-weight:700}
    .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 #e7edf4;border-radius:12px;background:#fbfcfe}
    .mega-card:hover{border-color:#9ab3dc;background:#f4f8ff}
    .mega-card>img{width:42px;height:42px;border-radius:8px;object-fit:cover;flex:none}
    .mega-card-content{min-width:0;display:flex;flex-direction:column;gap:3px}
    .mega-card-content strong{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .mega-card-content p{margin:0;color:var(--muted);font-size:11px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .mega-card-meta{display:flex;flex-wrap:wrap;gap:5px 9px;color:var(--muted);font-size:10px}
    .mega-categories{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 15px}
    .mega-categories a{padding:4px 10px;border-radius:30px;background:#edf3fb;color:var(--primary);font-size:12px}
    .header-btns{display:flex;align-items:center;gap:12px;white-space:nowrap}
    .header-btns>a:not(.logo){padding:9px 15px;border-radius:8px;background:var(--primary);color:#fff;font-size:13px;font-weight:700}
    .hamburger{display:none;border:0;background:none;padding:7px;cursor:pointer}
    .hamburger span{display:block;width:23px;height:2px;background:var(--ink);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(4,17,39,.5);z-index:90}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;right:0;top:0;bottom:0;width:min(380px,88vw);background:#fff;z-index:100;transform:translateX(105%);transition:.25s ease;overflow:auto;box-shadow:-12px 0 35px rgba(0,0,0,.18)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:12px;padding:20px;border-bottom:1px solid var(--line);background:#f5f8fc}
    .drawer-head>a{margin-left:auto;color:var(--primary);font-weight:700;font-size:14px}
    .drawer-close{border:0;background:none;color:var(--ink);font-size:30px;line-height:1;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 #edf1f5;background:none;text-align:left;color:var(--ink);font-weight:700;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--primary);font-size:20px;font-weight:400}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 15px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:13px}

    .tag-page{min-height:600px;background:linear-gradient(180deg,#f5f8fc 0,#fff 420px);padding:62px 0 88px}
    .tag-hero{text-align:center;max-width:760px;margin:0 auto 38px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--accent)}
    .tag-hero h1{margin:12px 0 9px;color:var(--primary-dark);font-size:clamp(30px,5vw,50px);line-height:1.2}
    .tag-hero p{margin:0;color:var(--muted);font-size:15px}
    .tag-summary{display:flex;justify-content:center;gap:12px;align-items:center;margin-top:18px;color:var(--muted);font-size:13px}
    .tag-summary strong{color:var(--accent);font-size:24px;line-height:1}
    .tag-content{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:30px;align-items:start}
    .tag-articles{display:flex;flex-direction:column;gap:18px}
    .tag-article-card{display:grid;grid-template-columns:220px minmax(0,1fr);gap:22px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .tag-article-card:hover{border-color:#9bb4db;transform:translateY(-2px);transition:.2s}
    .tag-article-card>img{width:220px;height:150px;object-fit:cover;border-radius:12px;background:#e8eef6}
    .tag-article-body{min-width:0}
    .tag-article-label{display:inline-block;color:var(--accent);font-size:12px;font-weight:800;margin-bottom:5px}
    .tag-article-body h2{font-size:20px;line-height:1.4;margin:0 0 8px;color:var(--primary-dark)}
    .tag-article-body h2 a:hover{color:var(--accent)}
    .tag-article-body p{margin:0 0 12px;color:var(--muted);font-size:14px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}
    .article-meta{display:flex;flex-wrap:wrap;gap:8px 16px;color:#7b899c;font-size:12px}
    .article-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
    .article-tags span{padding:3px 8px;border-radius:5px;background:#f0f4fa;color:#60728b;font-size:11px}
    .read-link{display:inline-block;margin-top:12px;color:var(--primary);font-size:13px;font-weight:800}
    .read-link:hover{color:var(--accent)}
    .tag-sidebar{position:sticky;top:24px;padding:23px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
    .tag-sidebar h2{margin:0 0 15px;color:var(--primary-dark);font-size:18px}
    .tag-sidebar p{margin:0;color:var(--muted);font-size:13px}
    .tag-side-list{margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}
    .tag-side-list a{display:flex;justify-content:space-between;gap:10px;padding:9px 0;color:var(--muted);font-size:13px;border-bottom:1px dashed #e5eaf1}
    .tag-side-list a:hover{color:var(--primary)}
    .pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:30px}
    .pagination a{min-width:36px;padding:6px 11px;text-align:center;border:1px solid var(--line);border-radius:8px;color:var(--muted);font-size:13px;background:#fff}
    .pagination a:hover,.pagination a.active{background:var(--primary);border-color:var(--primary);color:#fff}

    .footer{background:#071b3c;color:#dce7f6}
    .footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:38px;padding:52px 0 42px}
    .footer .logo{color:#fff;margin-bottom:15px}
    .footer .logo img{background:#fff;border-radius:8px}
    .footer-brand p{max-width:330px;margin:0;color:#aebed4;font-size:13px}
    .footer h3{margin:3px 0 14px;color:#fff;font-size:15px}
    .footer-links,.footer-contact{display:flex;flex-direction:column;gap:8px}
    .footer-links a,.footer-contact a{color:#aebed4;font-size:13px}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-social{display:flex;flex-direction:column;gap:4px;margin-top:8px;color:#aebed4;font-size:13px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid rgba(255,255,255,.14);color:#9fb1ca;font-size:12px}
    .footer-bottom-links{display:flex;gap:18px}

    @media(max-width:1050px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
      .tag-content{grid-template-columns:minmax(0,1fr) 245px}
    }
    @media(max-width:760px){
      .container{width:min(100% - 28px,600px)}
      .topbar-inner{padding:7px 0;align-items:flex-start;flex-direction:column;gap:2px}
      .topbar-contact{gap:12px;flex-wrap:wrap}
      .header-inner{min-height:68px;gap:10px}
      .logo{font-size:16px}
      .logo img{width:33px;height:33px}
      .header-btns>a:not(.logo){padding:7px 10px;font-size:12px}
      .tag-page{padding:42px 0 60px}
      .tag-hero{margin-bottom:28px}
      .tag-hero h1{font-size:34px}
      .tag-content{display:block}
      .tag-sidebar{position:static;margin-top:25px}
      .tag-article-card{grid-template-columns:1fr;gap:14px;padding:14px}
      .tag-article-card>img{width:100%;height:190px}
      .tag-article-body h2{font-size:18px}
      .footer-main{grid-template-columns:1fr 1fr;gap:28px;padding:38px 0}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{flex-direction:column;gap:7px}
      .footer-bottom-links{flex-wrap:wrap;gap:8px 14px}
    }
    @media(max-width:430px){
      .header-btns>a:not(.logo){display:none}
      .footer-main{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .tag-article-card>img{height:160px}
    }