:root{
      --primary:#0B3D91;
      --primary-dark:#072b67;
      --primary-soft:#eaf1fc;
      --accent:#ff785f;
      --cream:#fff9ef;
      --ink:#20242c;
      --muted:#687386;
      --line:#dfe5ee;
      --surface:#ffffff;
      --page:#f5f7fb;
      --shadow:0 18px 48px rgba(18,34,63,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--page);
      font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",Arial,sans-serif;
      line-height:1.65;
      overflow-x:hidden;
    }
    body,a,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{
      position:relative;
      z-index:120;
      color:#dbe8ff;
      background:var(--primary-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:110;
      background:rgba(255,255,255,.98);
      border-bottom:1px solid var(--line);
      box-shadow:0 5px 18px rgba(21,37,68,.04);
    }
    .header-inner{
      position:relative;
      min-height:78px;
      display:flex;
      align-items:center;
      gap:25px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      flex:0 0 auto;
      gap:10px;
      color:var(--primary-dark);
      font-size:18px;
      font-weight:800;
      letter-spacing:.01em;
    }
    .logo img{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:11px;
      background:#fff;
    }
    .main-nav{align-self:stretch;margin-left:auto}
    .nav-list{
      height:100%;
      display:flex;
      align-items:stretch;
      gap:2px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .nav-item{
      position:relative;
      display:flex;
      align-items:stretch;
    }
    .nav-link{
      display:flex;
      align-items:center;
      padding:0 12px;
      color:#2e3745;
      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(--primary);
      background:var(--primary-soft);
    }
    .has-arrow::after{
      width:6px;
      height:6px;
      margin:-4px 0 0 7px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      content:"";
      transform:rotate(45deg);
    }
    .dropdown-panel,
    .mega-menu{
      position:absolute;
      top:100%;
      z-index:130;
      visibility:hidden;
      opacity:0;
      pointer-events:none;
      transform:translateY(8px);
      transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
    }
    .dropdown-panel{
      left:0;
      width:340px;
      padding-top:0;
    }
    .mega-menu{
      left:50%;
      width:min(940px,calc(100vw - 50px));
      transform:translate(-50%,8px);
    }
    .nav-item:hover>.dropdown-panel,
    .nav-item:focus-within>.dropdown-panel{
      visibility:visible;
      opacity:1;
      pointer-events:auto;
      transform:translateY(0);
    }
    .nav-item:hover>.mega-menu,
    .nav-item:focus-within>.mega-menu{
      visibility:visible;
      opacity:1;
      pointer-events:auto;
      transform:translate(-50%,0);
    }
    .dropdown-inner,
    .mega-inner{
      overflow:hidden;
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 18px 18px;
      box-shadow:0 25px 55px rgba(18,34,63,.16);
    }
    .dropdown-inner{padding:12px}
    .dropdown-inner>a:not(.mega-footer){
      display:block;
      padding:11px 12px;
      border-radius:9px;
      color:#3c4655;
      font-size:14px;
    }
    .dropdown-inner>a:not(.mega-footer):hover{
      color:var(--primary);
      background:var(--primary-soft);
    }
    .mega-inner{padding:24px}
    .mega-heading{
      margin:0 0 14px;
      color:var(--primary-dark);
      font-size:14px;
      font-weight:800;
    }
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
    }
    .mega-card{
      min-width:0;
      display:flex;
      align-items:center;
      gap:11px;
      padding:11px;
      border:1px solid #e7ebf2;
      border-radius:13px;
      background:#fff;
      transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
    }
    .mega-card:hover{
      transform:translateY(-2px);
      border-color:#b7c9ea;
      box-shadow:0 10px 24px rgba(11,61,145,.10);
    }
    .mega-card img{
      flex:0 0 48px;
      width:48px;
      height:48px;
      object-fit:cover;
      border-radius:10px;
      background:#eef3fb;
    }
    .mega-card span{min-width:0}
    .mega-card strong,
    .mega-card small{
      display:block;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .mega-card strong{
      color:#253146;
      font-size:14px;
      white-space:nowrap;
    }
    .mega-card small{
      margin-top:3px;
      color:var(--muted);
      font-size:11px;
      white-space:nowrap;
    }
    .mega-columns{
      display:grid;
      grid-template-columns:230px minmax(0,1fr);
      gap:24px;
    }
    .mega-links{display:grid;gap:5px}
    .mega-links a{
      padding:8px 10px;
      color:#455064;
      border-radius:8px;
      font-size:14px;
    }
    .mega-links a:hover{color:var(--primary);background:var(--primary-soft)}
    .mega-footer{
      display:block;
      margin-top:16px;
      padding:10px 12px;
      color:var(--primary);
      background:var(--primary-soft);
      border-radius:10px;
      text-align:center;
      font-size:13px;
      font-weight:800;
    }
    .header-btns{
      display:flex;
      align-items:center;
      flex:0 0 auto;
      gap:9px;
    }
    .member-btn,
    .open-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:40px;
      padding:0 15px;
      border-radius:10px;
      font-size:14px;
      font-weight:750;
    }
    .member-btn{color:var(--primary);background:var(--primary-soft)}
    .open-btn{color:#fff;background:var(--primary);box-shadow:0 8px 18px rgba(11,61,145,.20)}
    .member-btn:hover{background:#dce9fc}
    .open-btn:hover{background:var(--primary-dark)}
    .hamburger{
      width:42px;
      height:42px;
      display:none;
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
      padding:0;
      border:1px solid var(--line);
      border-radius:10px;
      background:#fff;
      cursor:pointer;
    }
    .hamburger span{
      width:19px;
      height:2px;
      background:var(--primary-dark);
      border-radius:5px;
      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:190;
      visibility:hidden;
      opacity:0;
      background:rgba(10,18,32,.58);
      transition:opacity .25s ease,visibility .25s ease;
    }
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      z-index:200;
      width:min(390px,88vw);
      height:100vh;
      overflow-y:auto;
      background:#fff;
      box-shadow:-22px 0 50px rgba(10,18,32,.22);
      transform:translateX(105%);
      transition:transform .28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      position:sticky;
      top:0;
      z-index:2;
      min-height:70px;
      display:flex;
      align-items:center;
      gap:12px;
      padding:14px 18px;
      color:#fff;
      background:var(--primary);
    }
    .drawer-head strong{margin-right:auto}
    .drawer-head>a{
      padding:7px 12px;
      border:1px solid rgba(255,255,255,.4);
      border-radius:8px;
      font-size:13px;
    }
    .drawer-close{
      width:36px;
      height:36px;
      padding:0;
      color:#fff;
      border:0;
      background:transparent;
      font-size:28px;
      line-height:1;
      cursor:pointer;
    }
    .drawer-menu{padding:12px 18px 30px}
    .drawer-link,
    .drawer-toggle{
      width:100%;
      min-height:48px;
      display:flex;
      align-items:center;
      padding:0 5px;
      border:0;
      border-bottom:1px solid #e8ebf1;
      background:transparent;
      color:#263247;
      font-weight:700;
      text-align:left;
      cursor:pointer;
    }
    .drawer-toggle::after{
      margin-left:auto;
      content:"+";
      color:var(--primary);
      font-size:21px;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      display:none;
      padding:7px 0 9px 14px;
      border-bottom:1px solid #e8ebf1;
    }
    .drawer-submenu.open{display:grid}
    .drawer-submenu a{
      padding:8px 8px;
      color:#5c6676;
      border-radius:7px;
      font-size:14px;
    }
    .drawer-submenu a:hover{color:var(--primary);background:var(--primary-soft)}
    .tag-page{min-height:620px}
    .tag-page .tag-hero{
      position:relative;
      overflow:hidden;
      padding:72px 0 68px;
      color:#fff;
      background:
        radial-gradient(circle at 12% 28%,rgba(255,120,95,.30),transparent 27%),
        radial-gradient(circle at 88% 72%,rgba(107,156,240,.28),transparent 30%),
        linear-gradient(135deg,var(--primary-dark),var(--primary));
    }
    .tag-page .tag-hero::before,
    .tag-page .tag-hero::after{
      position:absolute;
      border:1px solid rgba(255,255,255,.13);
      border-radius:50%;
      content:"";
    }
    .tag-page .tag-hero::before{width:340px;height:340px;top:-210px;right:8%}
    .tag-page .tag-hero::after{width:220px;height:220px;bottom:-150px;left:7%}
    .tag-page .breadcrumb{
      position:relative;
      z-index:1;
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      margin-bottom:20px;
      color:#dce8fb;
      font-size:14px;
    }
    .tag-page .breadcrumb a:hover{color:#fff;text-decoration:underline}
    .tag-page .tag-heading{
      position:relative;
      z-index:1;
      max-width:820px;
    }
    .tag-page .tag-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:14px;
      padding:6px 12px;
      color:#fff;
      border:1px solid rgba(255,255,255,.25);
      border-radius:999px;
      background:rgba(255,255,255,.10);
      font-size:13px;
      font-weight:750;
    }
    .tag-page .tag-kicker::before{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(255,120,95,.16);
      content:"";
    }
    .tag-page .tag-heading h1{
      margin:0;
      font-size:clamp(34px,5vw,58px);
      line-height:1.15;
      letter-spacing:-.02em;
    }
    .tag-page .tag-heading p{
      max-width:690px;
      margin:18px 0 0;
      color:#e1ebfa;
      font-size:17px;
    }
    .tag-page .tag-count{
      display:inline-flex;
      align-items:center;
      margin-top:22px;
      padding:8px 14px;
      color:#263247;
      background:var(--cream);
      border-radius:10px;
      font-size:14px;
      font-weight:800;
    }
    .tag-page .tag-content{padding:58px 0 76px}
    .tag-page .content-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:25px;
    }
    .tag-page .content-head h2{
      margin:0;
      color:#1f2b3e;
      font-size:28px;
      line-height:1.25;
    }
    .tag-page .content-head p{margin:7px 0 0;color:var(--muted)}
    .tag-page .tag-index-link{
      flex:0 0 auto;
      padding:10px 15px;
      color:var(--primary);
      border:1px solid #bcd0ef;
      border-radius:10px;
      background:#fff;
      font-size:14px;
      font-weight:750;
    }
    .tag-page .tag-index-link:hover{background:var(--primary-soft)}
    .tag-page .article-list{display:grid;gap:20px}
    .tag-page .article-card{
      min-width:0;
      display:grid;
      grid-template-columns:300px minmax(0,1fr);
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:var(--surface);
      box-shadow:0 8px 28px rgba(18,34,63,.055);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .tag-page .article-card:hover{
      transform:translateY(-3px);
      border-color:#bdcdea;
      box-shadow:var(--shadow);
    }
    .tag-page .article-cover{
      position:relative;
      min-height:250px;
      overflow:hidden;
      background:#e9eef6;
    }
    .tag-page .article-cover img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .4s ease;
    }
    .tag-page .article-card:hover .article-cover img{transform:scale(1.035)}
    .tag-page .cover-tag{
      position:absolute;
      top:16px;
      left:16px;
      padding:6px 11px;
      color:#fff;
      border-radius:999px;
      background:rgba(11,61,145,.90);
      box-shadow:0 7px 18px rgba(0,0,0,.15);
      font-size:12px;
      font-weight:800;
    }
    .tag-page .article-body{
      min-width:0;
      display:flex;
      flex-direction:column;
      padding:25px 27px;
    }
    .tag-page .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px 16px;
      margin-bottom:10px;
      color:#778194;
      font-size:13px;
    }
    .tag-page .article-meta span{display:inline-flex;align-items:center;gap:5px}
    .tag-page .article-title{
      margin:0;
      color:#202b3d;
      font-size:23px;
      line-height:1.4;
    }
    .tag-page .article-title a:hover{color:var(--primary)}
    .tag-page .article-summary{
      display:-webkit-box;
      overflow:hidden;
      margin:12px 0 15px;
      color:#596476;
      font-size:15px;
      line-height:1.8;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:3;
    }
    .tag-page .article-tags{
      margin:0 0 18px;
      color:#66738a;
      font-size:13px;
      overflow-wrap:anywhere;
    }
    .tag-page .article-tags strong{color:var(--primary-dark)}
    .tag-page .read-more{
      width:max-content;
      display:inline-flex;
      align-items:center;
      gap:7px;
      margin-top:auto;
      padding:9px 15px;
      color:#fff;
      border-radius:9px;
      background:var(--primary);
      font-size:14px;
      font-weight:800;
    }
    .tag-page .read-more::after{content:"→";transition:transform .2s ease}
    .tag-page .read-more:hover{background:var(--primary-dark)}
    .tag-page .read-more:hover::after{transform:translateX(3px)}
    .tag-page .pagination{
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:8px;
      margin-top:38px;
    }
    .tag-page .pagination a{
      min-width:42px;
      height:42px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:0 13px;
      color:#465266;
      border:1px solid var(--line);
      border-radius:10px;
      background:#fff;
      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;
      border-color:var(--primary);
      background:var(--primary);
    }
    .tag-page .tag-guide{
      margin-top:50px;
      padding:30px;
      border:1px solid #f0d9cf;
      border-radius:var(--radius);
      background:linear-gradient(135deg,#fff9ef,#fff);
    }
    .tag-page .tag-guide h2{margin:0 0 8px;color:#303541;font-size:23px}
    .tag-page .tag-guide p{margin:0;color:#687386}
    .tag-page .guide-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:19px}
    .tag-page .guide-actions a{
      padding:10px 15px;
      border-radius:9px;
      font-size:14px;
      font-weight:800;
    }
    .tag-page .guide-actions a:first-child{color:#fff;background:var(--primary)}
    .tag-page .guide-actions a:last-child{color:var(--primary);border:1px solid #bdd0ee;background:#fff}
    .footer{
      color:#cbd5e5;
      background:#101a2b;
      border-top:4px solid var(--primary);
    }
    .footer .container{padding-top:54px}
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr 1fr 1fr 1fr;
      gap:38px;
      padding-bottom:42px;
    }
    .footer .logo{margin-bottom:17px;color:#fff}
    .footer .logo img{background:#fff}
    .footer h3{
      margin:4px 0 17px;
      color:#fff;
      font-size:16px;
    }
    .footer p{margin:9px 0;color:#aeb9cb;font-size:14px}
    .footer-grid>div:not(.footer-brand)>a{
      display:block;
      width:max-content;
      max-width:100%;
      margin:9px 0;
      color:#bdc8d9;
      font-size:14px;
    }
    .footer a:hover{color:#fff}
    .footer-bottom{
      min-height:70px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding:16px 0;
      color:#919eb2;
      border-top:1px solid rgba(255,255,255,.10);
      font-size:13px;
    }
    @media (max-width:1120px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-btns{margin-left:auto}
      .mega-menu,.dropdown-panel{display:none}
    }
    @media (max-width:850px){
      .tag-page .article-card{grid-template-columns:230px minmax(0,1fr)}
      .tag-page .article-cover{min-height:270px}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:680px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{min-height:42px}
      .topbar-links a:first-child{display:none}
      .header-inner{min-height:68px;gap:10px}
      .header .logo span{max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .header .logo img{width:38px;height:38px}
      .member-btn{display:none}
      .open-btn{min-height:38px;padding:0 12px}
      .tag-page .tag-hero{padding:50px 0}
      .tag-page .tag-heading p{font-size:15px}
      .tag-page .tag-content{padding:40px 0 58px}
      .tag-page .content-head{align-items:flex-start;flex-direction:column}
      .tag-page .article-card{grid-template-columns:1fr}
      .tag-page .article-cover{min-height:215px;aspect-ratio:16/9}
      .tag-page .article-body{padding:21px}
      .tag-page .article-title{font-size:20px}
      .tag-page .article-summary{-webkit-line-clamp:3}
      .tag-page .tag-guide{padding:23px}
      .footer-grid{grid-template-columns:1fr;gap:20px}
      .footer-bottom{align-items:flex-start;flex-direction:column;justify-content:center}
    }
    @media (max-width:420px){
      .topbar-links a:last-child{max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .header .logo span{display:none}
      .open-btn{font-size:13px}
      .tag-page .pagination a{min-width:38px;height:38px;padding:0 10px}
    }