:root{
      --theme:#0B3D91;
      --ink:#172033;
      --muted:#6b7280;
      --line:#e7ebf2;
      --soft:#f5f7fb;
      --white:#fff;
      --shadow:0 16px 45px rgba(18,38,72,.09);
      --radius:16px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fff;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
    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}

    .topbar{background:#101827;color:#cbd5e1;font-size:13px}
    .topbar .container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar a{color:#dbeafe;margin-left:20px}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{height:76px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;font-size:20px;color:var(--theme)}
    .logo img{width:34px;height:34px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:center;justify-content:center;gap:4px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:block;padding:25px 13px;color:#303b50;font-size:15px;white-space:nowrap}
    .nav-link:hover,.nav-link:focus-visible{color:var(--theme)}
    .has-arrow:after{content:"⌄";font-size:13px;margin-left:5px;color:#8a94a6}
    .dropdown-panel,.mega-menu{
      position:absolute;top:calc(100% + 1px);left:50%;transform:translateX(-50%);
      width:310px;padding:20px;background:#fff;border:1px solid var(--line);
      border-radius:0 0 14px 14px;box-shadow:var(--shadow);opacity:0;visibility:hidden;
      transition:.2s ease;z-index:30
    }
    .mega-menu{width:590px}
    .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}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px}
    .drop-title,.mega-title{font-weight:800;font-size:15px;margin-bottom:12px;color:var(--theme)}
    .drop-list{display:grid;gap:8px}
    .drop-list a{display:block;padding:7px 9px;border-radius:8px;color:#465269;font-size:14px}
    .drop-list a:hover{background:var(--soft);color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{display:block;padding:12px;border:1px solid var(--line);border-radius:10px;background:#fff}
    .mega-card:hover{border-color:#a9c3ec;background:#f7faff}
    .mega-card img{width:28px;height:28px;object-fit:contain;margin-bottom:7px}
    .mega-card strong{display:block;font-size:13px;color:#27344a}
    .mega-card small{display:block;color:var(--muted);font-size:11px;line-height:1.5;margin-top:3px}
    .mega-footer{display:block;margin-top:15px;padding-top:12px;border-top:1px solid var(--line);font-size:13px;font-weight:700;color:var(--theme)}
    .header-btns{display:flex;align-items:center;gap:9px;white-space:nowrap}
    .member-btn,.open-btn{padding:8px 13px;border-radius:8px;font-size:13px}
    .member-btn{color:var(--theme);border:1px solid #cbd9ee}
    .open-btn{color:#fff;background:var(--theme)}
    .hamburger{display:none;width:42px;height:40px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:19px;height:2px;background:var(--ink);margin:4px auto;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(10,18,33,.5);z-index:50}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;right:-360px;top:0;width:min(360px,88vw);height:100vh;background:#fff;z-index:60;transition:right .25s ease;overflow:auto}
    .mobile-drawer.open{right:0}
    .drawer-head{height:70px;display:flex;align-items:center;gap:15px;padding:0 20px;border-bottom:1px solid var(--line);font-weight:800}
    .drawer-head>a{margin-left:auto;color:var(--theme);font-size:14px}
    .drawer-close{border:0;background:transparent;font-size:28px;color:#64748b;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 var(--line);background:transparent;text-align:left;color:#253149;font-size:15px;cursor:pointer}
    .drawer-toggle:after{content:"＋";float:right;color:#94a3b8}
    .drawer-toggle.active{color:var(--theme)}
    .drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:5px 0 8px 14px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:#68758b;font-size:14px}

    .tag-page{padding:64px 0 86px;background:linear-gradient(180deg,#f7faff 0,#fff 360px)}
    .tag-heading{text-align:center;margin-bottom:36px}
    .tag-kicker{display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:999px;background:#eaf1fc;color:var(--theme);font-size:13px;font-weight:700}
    .tag-kicker:before{content:"#";font-size:18px}
    .tag-heading h1{margin:16px 0 8px;font-size:clamp(30px,5vw,48px);letter-spacing:-1px;color:#14213b}
    .tag-heading p{margin:0;color:var(--muted);font-size:15px}
    .tag-summary{display:flex;justify-content:center;gap:10px;align-items:center;margin-top:15px;color:#7a8597;font-size:14px}
    .tag-summary strong{color:var(--theme);font-size:20px}
    .tag-content{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:28px;align-items:start}
    .tag-list{display:grid;gap:17px}
    .tag-article{display:grid;grid-template-columns:225px minmax(0,1fr);gap:20px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 26px rgba(18,38,72,.045);transition:.2s}
    .tag-article:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c6d7f1}
    .tag-article-cover{height:156px;overflow:hidden;border-radius:11px;background:#e9eef6}
    .tag-article-cover img{width:100%;height:100%;object-fit:cover}
    .tag-article-body{min-width:0}
    .tag-article-meta{display:flex;flex-wrap:wrap;gap:9px;color:#8994a5;font-size:12px;margin-bottom:6px}
    .tag-article-meta .column{color:var(--theme);font-weight:700}
    .tag-article h2{margin:3px 0 8px;font-size:19px;line-height:1.45;color:#1b2b47}
    .tag-article h2 a:hover{color:var(--theme)}
    .tag-article-summary{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;margin:0;color:#69758a;font-size:14px;line-height:1.75}
    .tag-article-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:13px}
    .tag-labels{display:flex;gap:7px;flex-wrap:wrap}
    .tag-labels span{padding:3px 8px;background:#f1f4f8;border-radius:5px;color:#728097;font-size:11px}
    .read-link{flex:none;color:var(--theme);font-size:13px;font-weight:700}
    .read-link:after{content:" →";transition:.2s}
    .read-link:hover:after{margin-left:4px}
    .tag-side{position:sticky;top:20px;padding:23px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 25px rgba(18,38,72,.05)}
    .tag-side h2{margin:0 0 14px;font-size:18px}
    .tag-side p{margin:0 0 18px;color:#758196;font-size:13px}
    .side-links{display:grid;gap:10px}
    .side-links a{padding:10px 12px;background:var(--soft);border-radius:8px;color:#47566d;font-size:13px}
    .side-links a:hover{background:#eaf1fc;color:var(--theme)}
    .pagination{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}
    .pagination a{min-width:38px;padding:7px 12px;text-align:center;border:1px solid var(--line);border-radius:8px;color:#66748a;font-size:13px}
    .pagination a:hover,.pagination a.active{background:var(--theme);border-color:var(--theme);color:#fff}

    .footer{padding:54px 0 20px;background:#111b2c;color:#b7c2d3}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand strong{display:block;color:#fff;font-size:20px;margin-bottom:12px}
    .footer p{margin:7px 0;font-size:13px;line-height:1.8}
    .footer h3{margin:0 0 14px;color:#fff;font-size:15px}
    .footer-grid>div:not(.footer-brand) a,.footer-grid>div:not(.footer-brand)>span{display:block;margin:7px 0;color:#b7c2d3;font-size:13px}
    .footer-grid a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:38px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#8794a8}

    @media(max-width:980px){
      .main-nav{display:none}
      .header-btns .member-btn,.header-btns .open-btn{display:none}
      .hamburger{display:block}
      .tag-content{grid-template-columns:1fr}
      .tag-side{position:static}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:620px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{display:block;padding:7px 0}
      .topbar .container>span{display:block}
      .topbar a{margin-left:0;margin-right:15px}
      .header-inner{height:66px}
      .logo{font-size:17px}
      .tag-page{padding:42px 0 60px}
      .tag-article{grid-template-columns:1fr;gap:14px}
      .tag-article-cover{height:190px}
      .tag-article h2{font-size:18px}
      .tag-article-foot{align-items:flex-end}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px 18px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
      .mega-menu{width:calc(100vw - 30px)}
    }