:root{
      --theme:#0B3D91;
      --theme-dark:#072b68;
      --theme-soft:#eaf1fc;
      --accent:#d79c52;
      --ink:#172033;
      --muted:#657087;
      --line:#e1e7f0;
      --surface:#ffffff;
      --background:#f5f7fb;
      --shadow:0 18px 45px rgba(23,32,51,.09);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--background);
      font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;
      line-height:1.65;
      overflow-x:hidden;
    }
    body,button,input{font:inherit}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button{color:inherit}
    .container{
      width:min(1180px,calc(100% - 40px));
      margin:0 auto;
    }
    .topbar{
      color:#dce8ff;
      background:var(--theme-dark);
      font-size:13px;
    }
    .topbar .container{
      min-height:38px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .topbar-links{
      display:flex;
      align-items:center;
      gap:22px;
    }
    .topbar a{
      transition:color .2s ease;
    }
    .topbar a:hover{color:#fff}
    .header{
      position:relative;
      z-index:50;
      background:rgba(255,255,255,.98);
      border-bottom:1px solid var(--line);
      box-shadow:0 7px 24px rgba(11,61,145,.05);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:26px;
    }
    .logo{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:11px;
      color:var(--theme);
      font-size:20px;
      font-weight:800;
      letter-spacing:.01em;
    }
    .logo img{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:10px;
    }
    .main-nav{
      align-self:stretch;
      flex:1;
      display:flex;
      justify-content:center;
    }
    .nav-list{
      align-self:stretch;
      display:flex;
      align-items:stretch;
      gap:2px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .nav-item{
      position:relative;
      display:flex;
      align-items:center;
    }
    .nav-link{
      min-height:78px;
      padding:0 13px;
      display:flex;
      align-items:center;
      gap:6px;
      color:#26324a;
      font-size:15px;
      font-weight:650;
      white-space:nowrap;
      transition:color .2s ease,background .2s ease;
    }
    .nav-link:hover,
    .nav-item:focus-within>.nav-link{
      color:var(--theme);
      background:var(--theme-soft);
    }
    .has-arrow::after{
      content:"";
      width:6px;
      height:6px;
      margin-top:-4px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      transform:rotate(45deg);
      transition:transform .2s ease;
    }
    .nav-item:hover .has-arrow::after,
    .nav-item:focus-within .has-arrow::after{
      margin-top:3px;
      transform:rotate(225deg);
    }
    .dropdown-panel,
    .mega-menu{
      position:absolute;
      top:100%;
      left:50%;
      z-index:60;
      visibility:hidden;
      opacity:0;
      transform:translate(-50%,10px);
      pointer-events:none;
      background:#fff;
      border:1px solid var(--line);
      border-top:3px solid var(--theme);
      border-radius:0 0 16px 16px;
      box-shadow:0 22px 55px rgba(22,36,68,.16);
      transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
    }
    .dropdown-panel::before,
    .mega-menu::before{
      content:"";
      position:absolute;
      left:0;
      right:0;
      top:-13px;
      height:13px;
    }
    .dropdown-panel{
      width:310px;
      padding:20px;
    }
    .mega-menu{
      width:min(760px,calc(100vw - 40px));
      padding:22px;
    }
    .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;
      transform:translate(-50%,0);
      pointer-events:auto;
    }
    .panel-title{
      margin:0 0 12px;
      color:var(--theme);
      font-size:14px;
      font-weight:800;
    }
    .panel-list{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:8px;
    }
    .dropdown-panel .panel-list{
      grid-template-columns:1fr;
    }
    .panel-list a{
      min-width:0;
      padding:9px 11px;
      color:#3c4860;
      background:#f7f9fc;
      border-radius:9px;
      font-size:13px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
      transition:color .2s ease,background .2s ease;
    }
    .panel-list a:hover{
      color:var(--theme);
      background:var(--theme-soft);
    }
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:10px;
    }
    .mega-card{
      min-width:0;
      display:flex;
      align-items:center;
      gap:10px;
      padding:11px;
      background:#f7f9fc;
      border:1px solid transparent;
      border-radius:12px;
      transition:transform .2s ease,border-color .2s ease,background .2s ease;
    }
    .mega-card:hover{
      transform:translateY(-2px);
      background:#fff;
      border-color:#c9d7ed;
    }
    .mega-card img{
      flex:0 0 auto;
      width:42px;
      height:42px;
      object-fit:cover;
      background:#fff;
      border:1px solid var(--line);
      border-radius:9px;
    }
    .mega-card span{min-width:0}
    .mega-card strong,
    .mega-card small{
      display:block;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-card strong{
      margin-bottom:2px;
      color:#26324a;
      font-size:13px;
    }
    .mega-card small{
      color:var(--muted);
      font-size:11px;
    }
    .mega-footer{
      display:block;
      margin-top:16px;
      padding-top:13px;
      color:var(--theme);
      border-top:1px solid var(--line);
      font-size:13px;
      font-weight:800;
      text-align:right;
    }
    .header-btns{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:9px;
    }
    .member-link,
    .open-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:39px;
      padding:0 15px;
      border-radius:9px;
      font-size:14px;
      font-weight:750;
    }
    .member-link{
      color:var(--theme);
      border:1px solid #c7d6ec;
      background:#fff;
    }
    .open-link{
      color:#fff;
      background:var(--theme);
      box-shadow:0 8px 18px rgba(11,61,145,.2);
    }
    .member-link:hover{background:var(--theme-soft)}
    .open-link:hover{background:var(--theme-dark)}
    .hamburger{
      width:42px;
      height:42px;
      display:none;
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
      padding:0;
      background:#fff;
      border:1px solid var(--line);
      border-radius:10px;
      cursor:pointer;
    }
    .hamburger span{
      width:19px;
      height:2px;
      background:var(--theme);
      border-radius:3px;
      transition:transform .2s ease,opacity .2s ease;
    }
    .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{
      position:fixed;
      inset:0;
      z-index:80;
      visibility:hidden;
      opacity:0;
      background:rgba(8,18,38,.58);
      backdrop-filter:blur(3px);
      transition:opacity .25s ease,visibility .25s ease;
    }
    .drawer-overlay.open{
      visibility:visible;
      opacity:1;
    }
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      bottom:0;
      z-index:90;
      width:min(390px,90vw);
      overflow-y:auto;
      background:#fff;
      box-shadow:-20px 0 50px rgba(11,29,61,.2);
      transform:translateX(105%);
      transition:transform .28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:76px;
      display:flex;
      align-items:center;
      gap:12px;
      padding:15px 18px;
      color:#fff;
      background:var(--theme);
    }
    .drawer-head>span{
      min-width:0;
      flex:1;
      font-weight:750;
    }
    .drawer-head>a{
      padding:7px 13px;
      color:var(--theme);
      background:#fff;
      border-radius:8px;
      font-size:13px;
      font-weight:800;
    }
    .drawer-close{
      width:36px;
      height:36px;
      padding:0;
      color:#fff;
      background:rgba(255,255,255,.12);
      border:0;
      border-radius:8px;
      font-size:28px;
      line-height:1;
      cursor:pointer;
    }
    .drawer-menu{padding:14px 18px 30px}
    .drawer-link,
    .drawer-toggle{
      width:100%;
      min-height:48px;
      display:flex;
      align-items:center;
      padding:9px 5px;
      color:#26324a;
      background:none;
      border:0;
      border-bottom:1px solid var(--line);
      font-weight:750;
      text-align:left;
      cursor:pointer;
    }
    .drawer-toggle{
      justify-content:space-between;
    }
    .drawer-toggle::after{
      content:"+";
      color:var(--theme);
      font-size:21px;
      font-weight:400;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      display:none;
      padding:7px 0 10px 15px;
      border-bottom:1px solid var(--line);
    }
    .drawer-submenu.open{display:block}
    .drawer-submenu a{
      display:block;
      padding:9px 10px;
      color:var(--muted);
      border-left:2px solid #dbe5f5;
      font-size:14px;
    }
    .drawer-submenu a:hover{
      color:var(--theme);
      border-left-color:var(--theme);
      background:var(--theme-soft);
    }
    .tag-page{
      min-height:650px;
      padding-bottom:80px;
    }
    .tag-page .tag-banner{
      position:relative;
      isolation:isolate;
      overflow:hidden;
      padding:72px 0 92px;
      color:#fff;
      background:
        radial-gradient(circle at 18% 20%,rgba(255,255,255,.17) 0 5px,transparent 6px),
        radial-gradient(circle at 82% 68%,rgba(215,156,82,.35) 0 7px,transparent 8px),
        linear-gradient(135deg,var(--theme-dark),var(--theme) 62%,#315e9d);
    }
    .tag-page .tag-banner::before,
    .tag-page .tag-banner::after{
      content:"";
      position:absolute;
      z-index:-1;
      border:1px solid rgba(255,255,255,.15);
      border-radius:50%;
    }
    .tag-page .tag-banner::before{
      width:340px;
      height:340px;
      top:-210px;
      right:7%;
    }
    .tag-page .tag-banner::after{
      width:230px;
      height:230px;
      bottom:-175px;
      left:10%;
    }
    .tag-page .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      margin-bottom:20px;
      color:#dce8ff;
      font-size:14px;
    }
    .tag-page .breadcrumb a:hover{color:#fff}
    .tag-page .tag-heading{
      max-width:800px;
    }
    .tag-page .tag-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:13px;
      padding:6px 12px;
      color:#fff;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.2);
      border-radius:999px;
      font-size:13px;
      font-weight:750;
    }
    .tag-page .tag-kicker::before{
      content:"#";
      color:#f2c98f;
      font-size:16px;
    }
    .tag-page .tag-heading h1{
      margin:0;
      font-size:clamp(34px,5vw,58px);
      line-height:1.16;
      letter-spacing:-.035em;
    }
    .tag-page .tag-heading p{
      max-width:680px;
      margin:18px 0 0;
      color:#dce8ff;
      font-size:16px;
    }
    .tag-page .tag-summary{
      display:flex;
      align-items:center;
      gap:16px;
      margin-top:24px;
    }
    .tag-page .tag-count{
      display:inline-flex;
      align-items:baseline;
      gap:6px;
      padding:9px 16px;
      color:#fff;
      background:rgba(4,29,75,.34);
      border:1px solid rgba(255,255,255,.17);
      border-radius:12px;
    }
    .tag-page .tag-count strong{
      color:#f4cf98;
      font-size:23px;
    }
    .tag-page .tag-content{
      position:relative;
      z-index:2;
      margin-top:-38px;
    }
    .tag-page .content-shell{
      padding:30px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:22px;
      box-shadow:var(--shadow);
    }
    .tag-page .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:24px;
      padding-bottom:18px;
      border-bottom:1px solid var(--line);
    }
    .tag-page .section-head h2{
      margin:0;
      color:#1f2c43;
      font-size:26px;
      line-height:1.25;
    }
    .tag-page .section-head p{
      margin:7px 0 0;
      color:var(--muted);
      font-size:14px;
    }
    .tag-page .all-tags-link{
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:9px 14px;
      color:var(--theme);
      background:var(--theme-soft);
      border-radius:9px;
      font-size:13px;
      font-weight:800;
    }
    .tag-page .all-tags-link::after{content:"→"}
    .tag-page .article-list{
      display:grid;
      gap:18px;
    }
    .tag-page .article-card{
      min-width:0;
      display:grid;
      grid-template-columns:270px minmax(0,1fr);
      overflow:hidden;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .tag-page .article-card:hover{
      transform:translateY(-3px);
      border-color:#bccce4;
      box-shadow:0 14px 30px rgba(20,39,73,.09);
    }
    .tag-page .article-cover{
      position:relative;
      min-height:210px;
      overflow:hidden;
      background:#dfe7f3;
    }
    .tag-page .article-cover img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .35s ease;
    }
    .tag-page .article-card:hover .article-cover img{transform:scale(1.045)}
    .tag-page .article-cover span{
      position:absolute;
      top:14px;
      left:14px;
      padding:5px 10px;
      color:#fff;
      background:rgba(7,43,104,.9);
      border-radius:999px;
      font-size:12px;
      font-weight:750;
      backdrop-filter:blur(5px);
    }
    .tag-page .article-body{
      min-width:0;
      display:flex;
      flex-direction:column;
      padding:23px 24px 20px;
    }
    .tag-page .article-body h3{
      margin:0;
      color:#202c42;
      font-size:21px;
      line-height:1.4;
    }
    .tag-page .article-body h3 a:hover{color:var(--theme)}
    .tag-page .article-summary{
      display:-webkit-box;
      overflow:hidden;
      margin:10px 0 15px;
      color:var(--muted);
      font-size:14px;
      line-height:1.8;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:3;
    }
    .tag-page .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px 18px;
      margin-top:auto;
      color:#7b8598;
      font-size:12px;
    }
    .tag-page .article-meta span{
      display:inline-flex;
      align-items:center;
      gap:5px;
    }
    .tag-page .article-meta span::before{
      content:"";
      width:5px;
      height:5px;
      background:#9db2d0;
      border-radius:50%;
    }
    .tag-page .article-foot{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      margin-top:14px;
      padding-top:13px;
      border-top:1px dashed var(--line);
    }
    .tag-page .article-tags{
      min-width:0;
      color:#78849a;
      font-size:12px;
      overflow-wrap:anywhere;
    }
    .tag-page .read-more{
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--theme);
      font-size:13px;
      font-weight:800;
    }
    .tag-page .read-more::after{
      content:"→";
      transition:transform .2s ease;
    }
    .tag-page .read-more:hover::after{transform:translateX(4px)}
    .tag-page .pagination{
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:8px;
      margin-top:34px;
      padding-top:26px;
      border-top:1px solid var(--line);
    }
    .tag-page .pagination a{
      min-width:42px;
      min-height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:7px 13px;
      color:#4a5770;
      background:#fff;
      border:1px solid var(--line);
      border-radius:9px;
      font-size:14px;
      font-weight:700;
      transition:color .2s ease,background .2s ease,border-color .2s ease;
    }
    .tag-page .pagination a:hover,
    .tag-page .pagination a.active,
    .tag-page .pagination a.current{
      color:#fff;
      background:var(--theme);
      border-color:var(--theme);
    }
    .tag-page .research-note{
      display:grid;
      grid-template-columns:auto minmax(0,1fr);
      gap:17px;
      margin-top:24px;
      padding:20px 22px;
      color:#40506a;
      background:#eef4fc;
      border:1px solid #d4e0f1;
      border-radius:14px;
    }
    .tag-page .research-note strong{
      width:38px;
      height:38px;
      display:flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      background:var(--theme);
      border-radius:10px;
      font-size:18px;
    }
    .tag-page .research-note p{margin:0}
    .footer{
      color:#cbd6e8;
      background:#0a1931;
    }
    .footer .container{padding-top:58px}
    .footer-grid{
      display:grid;
      grid-template-columns:1.55fr 1fr 1fr 1.1fr;
      gap:42px;
      padding-bottom:42px;
    }
    .footer-brand{
      margin-bottom:14px;
      color:#fff;
      font-size:22px;
      font-weight:850;
    }
    .footer p{
      max-width:390px;
      margin:7px 0;
      color:#9eacc2;
      font-size:13px;
    }
    .footer h3{
      margin:3px 0 15px;
      color:#fff;
      font-size:15px;
    }
    .footer-links{
      display:flex;
      flex-direction:column;
      align-items:flex-start;
      gap:9px;
      color:#aebbd0;
      font-size:13px;
    }
    .footer-links a{
      transition:color .2s ease,transform .2s ease;
    }
    .footer-links a:hover{
      color:#fff;
      transform:translateX(3px);
    }
    .footer-bottom{
      min-height:68px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      color:#8190a7;
      border-top:1px solid rgba(255,255,255,.1);
      font-size:12px;
    }
    @media (max-width:1100px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-inner{min-height:72px}
      .member-link,.open-link{min-height:38px}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:760px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{
        min-height:42px;
        justify-content:center;
      }
      .topbar .container>span{display:none}
      .topbar-links{
        width:100%;
        justify-content:space-between;
        gap:12px;
      }
      .logo span{
        max-width:145px;
        overflow:hidden;
        text-overflow:ellipsis;
        white-space:nowrap;
      }
      .member-link{display:none}
      .header-btns{margin-left:auto}
      .tag-page .tag-banner{padding:54px 0 75px}
      .tag-page .tag-summary{align-items:flex-start}
      .tag-page .tag-content{margin-top:-27px}
      .tag-page .content-shell{padding:19px}
      .tag-page .section-head{
        align-items:flex-start;
        flex-direction:column;
      }
      .tag-page .article-card{grid-template-columns:1fr}
      .tag-page .article-cover{
        min-height:0;
        aspect-ratio:16/9;
      }
      .tag-page .article-body{padding:20px}
      .tag-page .article-summary{-webkit-line-clamp:3}
      .footer-grid{
        grid-template-columns:1fr;
        gap:28px;
      }
      .footer-bottom{
        align-items:flex-start;
        flex-direction:column;
        justify-content:center;
        padding:18px 0;
      }
    }
    @media (max-width:480px){
      .topbar-links a:first-child{display:none}
      .topbar-links{justify-content:center}
      .logo img{width:38px;height:38px}
      .logo span{max-width:112px;font-size:17px}
      .open-link{padding:0 11px}
      .header-inner{gap:10px}
      .tag-page .tag-heading h1{font-size:32px}
      .tag-page .tag-heading p{font-size:14px}
      .tag-page .tag-count{padding:7px 12px}
      .tag-page .content-shell{padding:15px}
      .tag-page .article-body h3{font-size:18px}
      .tag-page .article-foot{
        align-items:flex-start;
        flex-direction:column;
      }
      .tag-page .research-note{
        grid-template-columns:1fr;
        padding:18px;
      }
    }