:root{
      --theme:#0B3D91;
      --theme-dark:#082d6c;
      --ink:#152238;
      --muted:#68758a;
      --line:#e4e9f1;
      --surface:#f4f7fb;
      --white:#fff;
      --shadow:0 16px 45px rgba(20,46,89,.10);
      --radius:16px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:#f7f9fc;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{
      background:#0f1f38;
      color:#cbd7e8;
      font-size:13px;
    }
    .topbar .container{
      min-height:36px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .topbar-links{display:flex;gap:22px}
    .topbar a{color:#dbe7f6;transition:.2s}
    .topbar a:hover{color:#fff}

    .header{
      position:relative;
      z-index:20;
      background:rgba(255,255,255,.97);
      border-bottom:1px solid var(--line);
    }
    .header-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      gap:34px;
    }
    .logo{
      display:flex;
      align-items:center;
      gap:10px;
      flex:none;
      color:var(--theme-dark);
      font-size:19px;
      font-weight:800;
      white-space:nowrap;
    }
    .logo img{width:34px;height:34px;object-fit:contain}
    .main-nav{margin-left:auto}
    .nav-list{
      display:flex;
      align-items:stretch;
      gap:4px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .nav-item{position:relative}
    .nav-link{
      display:flex;
      align-items:center;
      min-height:76px;
      padding:0 13px;
      color:#344258;
      font-size:15px;
      font-weight:600;
      white-space:nowrap;
    }
    .nav-link:hover{color:var(--theme)}
    .has-arrow:after{
      content:"";
      width:6px;
      height:6px;
      margin:0 0 3px 8px;
      border-right:1px solid currentColor;
      border-bottom:1px solid currentColor;
      transform:rotate(45deg);
    }
    .dropdown-panel,.mega-menu{
      position:absolute;
      top:calc(100% + 1px);
      left:50%;
      transform:translate(-50%,8px);
      width:250px;
      padding:18px;
      border:1px solid var(--line);
      border-radius:0 0 14px 14px;
      background:#fff;
      box-shadow:var(--shadow);
      opacity:0;
      visibility:hidden;
      transition:.2s ease;
    }
    .mega-menu{width:610px}
    .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:translate(-50%,0);
    }
    .dropdown-panel:before,.mega-menu:before{
      content:"";
      position:absolute;
      left:0;
      right:0;
      top:-12px;
      height:12px;
    }
    .dropdown-panel a{
      display:block;
      padding:8px 9px;
      border-radius:8px;
      color:#526176;
      font-size:14px;
    }
    .dropdown-panel a:hover{background:#eef4fc;color:var(--theme)}
    .mega-title{
      margin:0 0 11px;
      color:var(--theme-dark);
      font-size:13px;
      font-weight:800;
    }
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:9px;
    }
    .mega-card{
      min-height:72px;
      padding:10px;
      border:1px solid #e8edf5;
      border-radius:10px;
      background:#fbfcfe;
      color:#56647a;
      font-size:11px;
      transition:.2s;
    }
    .mega-card:hover{border-color:#a9c2e7;background:#f1f6fd}
    .mega-card strong{color:#263956;font-size:13px}
    .mega-card img{width:25px;height:25px;object-fit:contain;margin-bottom:5px}
    .mega-footer{
      display:block;
      margin-top:14px;
      padding-top:12px;
      border-top:1px solid var(--line);
      color:var(--theme);
      font-size:13px;
      font-weight:700;
    }
    .header-btns{display:flex;align-items:center;gap:9px;flex:none}
    .member-btn,.account-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:36px;
      padding:0 13px;
      border-radius:8px;
      font-size:13px;
      font-weight:700;
    }
    .member-btn{color:var(--theme)}
    .account-btn{background:var(--theme);color:#fff}
    .account-btn:hover{background:var(--theme-dark)}
    .hamburger{
      display:none;
      width:40px;
      height:38px;
      padding:8px;
      border:1px solid var(--line);
      border-radius:8px;
      background:#fff;
      cursor:pointer;
    }
    .hamburger span{
      display:block;
      width:21px;
      height:2px;
      margin:4px auto;
      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;
      z-index:40;
      background:rgba(8,20,42,.46);
      opacity:0;
      visibility:hidden;
      transition:.25s;
    }
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      bottom:0;
      z-index:50;
      width:min(370px,88vw);
      overflow:auto;
      background:#fff;
      box-shadow:-15px 0 45px rgba(0,0,0,.18);
      transform:translateX(100%);
      transition:.3s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      display:flex;
      align-items:center;
      gap:12px;
      min-height:70px;
      padding:0 20px;
      border-bottom:1px solid var(--line);
      color:var(--theme);
      font-weight:800;
    }
    .drawer-head a{margin-left:auto;color:var(--theme)}
    .drawer-close{
      width:32px;
      height:32px;
      border:0;
      background:#eef3fa;
      border-radius:50%;
      color:var(--ink);
      font-size:23px;
      line-height:1;
      cursor:pointer;
    }
    .drawer-menu{padding:12px 20px 35px}
    .drawer-link,.drawer-toggle{
      display:block;
      width:100%;
      padding:13px 0;
      border:0;
      border-bottom:1px solid #edf0f5;
      background:transparent;
      color:#263650;
      text-align:left;
      font:inherit;
      cursor:pointer;
    }
    .drawer-toggle:after{
      content:"+";
      float:right;
      color:var(--muted);
      font-size:18px;
    }
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{
      display:none;
      padding:4px 0 8px 16px;
      border-left:2px solid #dce8f8;
    }
    .drawer-submenu.open{display:block}
    .drawer-submenu a{
      display:block;
      padding:7px 0;
      color:var(--muted);
      font-size:14px;
    }

    .tag-page{padding:54px 0 80px}
    .tag-hero{
      position:relative;
      overflow:hidden;
      padding:46px 42px;
      border:1px solid #dfe7f2;
      border-radius:22px;
      background:linear-gradient(135deg,#eef4fc 0%,#fff 65%);
      box-shadow:0 12px 35px rgba(27,63,112,.06);
    }
    .tag-hero:after{
      content:"#";
      position:absolute;
      right:50px;
      top:-33px;
      color:rgba(11,61,145,.08);
      font-size:180px;
      font-weight:900;
      line-height:1;
    }
    .eyebrow{
      position:relative;
      z-index:1;
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--theme);
      font-size:13px;
      font-weight:800;
      letter-spacing:.08em;
    }
    .eyebrow:before{
      content:"";
      width:22px;
      height:3px;
      border-radius:3px;
      background:var(--theme);
    }
    .tag-hero h1{
      position:relative;
      z-index:1;
      margin:12px 0 8px;
      color:#10284d;
      font-size:clamp(30px,4vw,48px);
      line-height:1.2;
    }
    .tag-hero p{
      position:relative;
      z-index:1;
      max-width:650px;
      margin:0;
      color:var(--muted);
      font-size:15px;
    }
    .tag-meta{
      position:relative;
      z-index:1;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:23px;
    }
    .tag-meta span{
      padding:5px 12px;
      border:1px solid #cbdcf2;
      border-radius:999px;
      background:#fff;
      color:var(--theme);
      font-size:13px;
      font-weight:700;
    }
    .tag-content{margin-top:35px}
    .section-heading{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:18px;
    }
    .section-heading h2{margin:0;color:#172b4b;font-size:24px}
    .section-heading p{margin:0;color:var(--muted);font-size:14px}
    .tag-article-list{display:grid;gap:16px}
    .tag-article-card{
      display:grid;
      grid-template-columns:230px 1fr;
      gap:22px;
      padding:17px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:#fff;
      box-shadow:0 7px 24px rgba(23,51,91,.05);
      transition:.2s;
    }
    .tag-article-card:hover{
      transform:translateY(-2px);
      border-color:#b9cce7;
      box-shadow:var(--shadow);
    }
    .tag-article-cover{
      min-height:150px;
      overflow:hidden;
      border-radius:11px;
      background:#eaf0f8;
    }
    .tag-article-cover img{width:100%;height:100%;object-fit:cover}
    .tag-article-body{min-width:0;padding:3px 5px 3px 0}
    .tag-article-label{
      display:inline-block;
      margin-bottom:6px;
      color:var(--theme);
      font-size:12px;
      font-weight:800;
    }
    .tag-article-body h3{
      margin:0 0 7px;
      color:#1a3155;
      font-size:20px;
      line-height:1.4;
    }
    .tag-article-body h3 a:hover{color:var(--theme)}
    .tag-article-summary{
      display:-webkit-box;
      overflow:hidden;
      margin:0 0 12px;
      color:#69778c;
      font-size:14px;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:3;
    }
    .article-info{
      display:flex;
      flex-wrap:wrap;
      gap:8px 18px;
      color:#8490a2;
      font-size:12px;
    }
    .article-info strong{color:#637189;font-weight:600}
    .article-tags{
      display:flex;
      flex-wrap:wrap;
      gap:7px;
      margin-top:12px;
    }
    .article-tags span{
      padding:2px 8px;
      border-radius:5px;
      background:#f0f4f9;
      color:#687890;
      font-size:11px;
    }
    .read-more{
      display:inline-flex;
      margin-top:13px;
      color:var(--theme);
      font-size:13px;
      font-weight:800;
    }
    .read-more:after{content:"→";margin-left:7px}
    .pagination{
      display:flex;
      justify-content:center;
      flex-wrap:wrap;
      gap:8px;
      margin-top:36px;
    }
    .pagination a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-width:38px;
      height:38px;
      padding:0 12px;
      border:1px solid var(--line);
      border-radius:8px;
      background:#fff;
      color:#596a83;
      font-size:13px;
    }
    .pagination a:hover,.pagination a.active{
      border-color:var(--theme);
      background:var(--theme);
      color:#fff;
    }

    .footer{
      padding:52px 0 20px;
      background:#0e1d34;
      color:#aab8ca;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.35fr 1fr 1fr 1.15fr;
      gap:38px;
      padding-bottom:35px;
    }
    .footer h3,.footer h4{margin:0 0 14px;color:#fff}
    .footer h3{font-size:20px}
    .footer h4{font-size:15px}
    .footer p{margin:7px 0;font-size:13px}
    .footer-grid>div>a{
      display:block;
      margin:7px 0;
      color:#aab8ca;
      font-size:13px;
    }
    .footer-grid>div>a:hover{color:#fff}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:20px;
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.12);
      color:#7f91aa;
      font-size:12px;
    }

    @media (max-width:1000px){
      .main-nav{display:none}
      .hamburger{display:block}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:680px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{align-items:flex-start;flex-direction:column;gap:0;padding:7px 0}
      .topbar-links{gap:12px;flex-wrap:wrap}
      .member-btn{display:none}
      .header-inner{min-height:66px;gap:10px}
      .header-btns{margin-left:auto}
      .account-btn{padding:0 10px}
      .tag-page{padding:28px 0 55px}
      .tag-hero{padding:30px 23px}
      .tag-hero:after{right:12px;font-size:120px}
      .tag-article-card{grid-template-columns:1fr;gap:14px;padding:13px}
      .tag-article-cover{height:190px;min-height:0}
      .tag-article-body{padding:0 3px 4px}
      .tag-article-body h3{font-size:18px}
      .footer-grid{grid-template-columns:1fr;gap:25px}
      .footer-bottom{align-items:flex-start;flex-direction:column;gap:7px}
    }