:root{--theme:#0B3D91;--ink:#142033;--muted:#697589;--line:#e6ebf2;--soft:#f5f7fb;--accent:#d99a27;--white:#fff}
    *{box-sizing:border-box}
    html,body{margin:0;padding:0;color:var(--ink);background:#f7f9fc;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}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{height:38px;background:#101a2b;color:#cbd4e2;font-size:12px}
    .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
    .topbar strong{color:#fff}
    .topbar-links{display:flex;gap:22px}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{height:76px;display:flex;align-items:center;gap:38px}
    .logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--theme);white-space:nowrap}
    .logo img{width:36px;height:36px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:stretch;justify-content:center;gap:4px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;height:76px;padding:0 15px;font-size:14px;font-weight:600;color:#344158;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;margin-left:8px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);width:300px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:0 0 12px 12px;box-shadow:0 18px 40px rgba(16,31,58,.14);opacity:0;visibility:hidden;transition:.2s;z-index:30}
    .mega-menu{width:610px}
    .nav-item:after{content:"";position:absolute;left:0;right:0;top:100%;height:12px}
    .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;transform:translateX(-50%) translateY(0)}
    .mega-title{margin:0 0 13px;color:var(--theme);font-size:13px;font-weight:800}
    .dropdown-panel>a{display:block;padding:9px 0;border-bottom:1px solid #edf0f5;font-size:13px;color:#47546a}
    .mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}
    .mega-card{display:flex;gap:9px;align-items:center;padding:9px;border:1px solid #edf0f5;border-radius:8px;background:#fbfcfe}
    .mega-card:hover{border-color:#b7c9e8;background:#f2f6fd}
    .mega-card img{width:34px;height:34px;object-fit:contain;border-radius:6px}
    .mega-card span{min-width:0}
    .mega-card b,.mega-card small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .mega-card b{font-size:12px;color:#26344b}
    .mega-card small{font-size:10px;color:#7a8799}
    .mega-footer{display:block;margin-top:14px;padding-top:12px;border-top:1px solid var(--line);font-size:12px;font-weight:700;color:var(--theme)}
    .header-btns{display:flex;align-items:center;gap:12px;white-space:nowrap}
    .member-link{font-size:13px;color:#526077}
    .account-btn{padding:9px 15px;border-radius:6px;background:var(--theme);color:#fff;font-size:13px;font-weight:700}
    .account-btn:hover{background:#082d6c}
    .hamburger{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:6px;padding:9px;cursor:pointer}
    .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{display:none;position:fixed;inset:0;background:rgba(7,15,29,.55);z-index:40}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:-360px;width:min(360px,88vw);height:100vh;background:#fff;z-index:50;transition:right .25s;overflow:auto;box-shadow:-8px 0 25px rgba(0,0,0,.16)}
    .mobile-drawer.open{right:0}
    .drawer-head{display:flex;align-items:center;gap:14px;padding:18px;border-bottom:1px solid var(--line);font-weight:700;color:var(--theme)}
    .drawer-head span{flex:1}
    .drawer-head a{padding:6px 12px;border-radius:5px;background:var(--theme);color:#fff;font-size:12px}
    .drawer-close{border:0;background:none;font-size:28px;color:#6b7689;cursor:pointer}
    .drawer-menu{padding:10px 18px 28px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid #edf0f5;background:none;text-align:left;font:inherit;font-size:14px;color:#26344b;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:#8490a2;font-size:18px}
    .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:#647187;font-size:13px}
    .footer{margin-top:70px;background:#101a2b;color:#b9c4d5}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:48px 0 36px}
    .footer h3{margin:0 0 13px;color:#fff;font-size:20px}
    .footer h4{margin:0 0 14px;color:#fff;font-size:14px}
    .footer p{margin:5px 0;font-size:12px;line-height:1.8}
    .footer a{display:block;margin:7px 0;font-size:12px;color:#b9c4d5}
    .footer a:hover{color:#fff}
    .footer-brand>a{display:inline-block;margin-right:14px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:17px 0;border-top:1px solid rgba(255,255,255,.1);font-size:11px;color:#8290a5}
    .tag-page{padding:58px 0 0}
    .tag-heading{text-align:center;padding:18px 20px 42px}
    .tag-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--theme);font-size:12px;font-weight:800;letter-spacing:1px}
    .tag-kicker:before{content:"";width:24px;height:2px;background:var(--accent)}
    .tag-heading h1{margin:15px 0 8px;font-size:38px;line-height:1.2;color:#132747}
    .tag-heading p{margin:0;color:var(--muted);font-size:14px}
    .tag-count{display:inline-block;margin-top:18px;padding:5px 12px;border:1px solid #cbd8ec;border-radius:30px;color:var(--theme);background:#fff;font-size:12px}
    .tag-content{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:28px;align-items:start}
    .tag-articles{display:grid;gap:16px}
    .tag-article{display:grid;grid-template-columns:220px minmax(0,1fr);gap:20px;padding:17px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 20px rgba(25,49,87,.04)}
    .tag-article-image{height:148px;border-radius:8px;overflow:hidden;background:#e7edf7}
    .tag-article-image img{width:100%;height:100%;object-fit:cover}
    .tag-article-body{min-width:0}
    .tag-article-label{display:inline-block;margin-bottom:6px;color:var(--accent);font-size:11px;font-weight:700}
    .tag-article h2{margin:0 0 8px;font-size:19px;line-height:1.4;color:#1c3154}
    .tag-article h2 a:hover{color:var(--theme)}
    .tag-article-summary{margin:0 0 12px;color:#697589;font-size:13px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
    .tag-meta{display:flex;flex-wrap:wrap;gap:9px 14px;color:#8994a5;font-size:11px}
    .tag-meta strong{color:#637086;font-weight:500}
    .tag-tags{margin-top:10px;color:var(--theme);font-size:11px;word-break:break-word}
    .read-more{display:inline-block;margin-top:13px;color:var(--theme);font-size:12px;font-weight:700}
    .tag-sidebar{padding:22px;background:#fff;border:1px solid var(--line);border-radius:12px}
    .tag-sidebar h3{margin:0 0 14px;font-size:16px;color:#1d3151}
    .tag-sidebar p{margin:0;color:#748096;font-size:12px;line-height:1.8}
    .side-line{height:1px;background:var(--line);margin:19px 0}
    .side-link{display:flex;justify-content:space-between;padding:9px 0;color:#53627a;font-size:13px;border-bottom:1px solid #f0f2f6}
    .side-link:hover{color:var(--theme)}
    .pagination{display:flex;flex-wrap:wrap;justify-content:center;gap:7px;margin:32px 0 0}
    .pagination a{min-width:34px;padding:6px 10px;border:1px solid #dbe2ed;border-radius:5px;background:#fff;color:#617089;text-align:center;font-size:12px}
    .pagination a:hover,.pagination a.active{border-color:var(--theme);background:var(--theme);color:#fff}
    @media(max-width:900px){
      .main-nav{display:none}.hamburger{display:block}.header-inner{justify-content:space-between;gap:12px}.header-btns{margin-left:auto}
      .member-link{display:none}.footer-grid{grid-template-columns:repeat(2,1fr)}
      .tag-content{grid-template-columns:1fr}.tag-sidebar{order:-1}
    }
    @media(max-width:600px){
      .container{width:min(100% - 28px,1180px)}.topbar{height:auto;padding:8px 0}.topbar .container{display:block}.topbar-links{gap:14px;margin-top:3px}
      .header-inner{height:66px}.logo{font-size:17px}.account-btn{display:none}
      .tag-page{padding-top:35px}.tag-heading h1{font-size:30px}.tag-heading{padding-bottom:28px}
      .tag-article{grid-template-columns:1fr;gap:13px}.tag-article-image{height:190px}.tag-article h2{font-size:17px}
      .footer-grid{grid-template-columns:1fr;gap:24px;padding:34px 0 25px}.footer-bottom{display:block}.footer-bottom span{display:block;margin:4px 0}
    }