:root{
      --主题色:#0B3D91;
      --深色:#10233f;
      --浅底:#f4f7fb;
      --边框:#dce4ef;
      --文字:#1b2a41;
      --次要:#66758a;
      --白:#fff;
      --阴影:0 14px 38px rgba(16,35,63,.09)
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--浅底);color:var(--文字);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.65}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{background:var(--深色);color:#dce8f8;font-size:13px}
    .topbar .container{min-height:36px;display:flex;justify-content:space-between;align-items:center}
    .topbar-links{display:flex;gap:22px}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--边框)}
    .header-inner{min-height:76px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;min-width:190px;color:var(--深色);font-weight:800;font-size:19px}
    .logo img{width:38px;height:38px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:stretch;justify-content:center;gap:4px;list-style:none;padding:0;margin:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;min-height:76px;padding:0 14px;font-size:15px;font-weight:600;color:#34445a;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--主题色)}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg);margin:0 0 4px 8px}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%);width:310px;padding:18px;background:#fff;border:1px solid var(--边框);box-shadow:var(--阴影);border-radius:0 0 12px 12px;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}
    .mega-menu{width:620px}
    .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;pointer-events:auto}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
    .dropdown-panel>a{display:block;padding:9px 8px;border-bottom:1px solid #edf1f6;font-size:14px}
    .dropdown-panel>a:hover{color:var(--主题色);background:#f5f8fd}
    .mega-title{display:flex;justify-content:space-between;gap:15px;align-items:center;padding-bottom:12px;border-bottom:1px solid var(--边框);font-weight:700;color:var(--深色)}
    .mega-title a{color:var(--主题色);font-size:13px}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
    .mega-card{display:block;min-height:76px;padding:11px;border:1px solid #e3eaf3;border-radius:9px;background:#fbfcfe}
    .mega-card:hover{border-color:var(--主题色);background:#f3f7fd}
    .mega-card img{width:25px;height:25px;object-fit:contain;margin-bottom:5px}
    .mega-card strong,.mega-card small{display:block}
    .mega-card strong{font-size:13px;color:var(--深色);margin-bottom:4px}
    .mega-card small{font-size:11px;color:var(--次要);line-height:1.45}
    .mega-footer{display:block;margin-top:15px;padding-top:12px;border-top:1px solid var(--边框);color:var(--主题色);font-weight:700;font-size:13px}
    .header-btns{display:flex;align-items:center;gap:9px;white-space:nowrap}
    .member-link{color:var(--主题色);font-size:14px;font-weight:700}
    .open-account{background:var(--主题色);color:#fff;border-radius:6px;padding:9px 15px;font-size:13px;font-weight:700}
    .hamburger{display:none;width:42px;height:38px;border:1px solid var(--边框);background:#fff;border-radius:6px;padding:8px;cursor:pointer}
    .hamburger span{display:block;height:2px;background:var(--深色);margin:5px 0;transition:.2s}
    .drawer-overlay{display:none;position:fixed;inset:0;background:rgba(9,22,40,.48);z-index:40}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;right:-360px;top:0;bottom:0;width:min(350px,88vw);background:#fff;z-index:50;overflow:auto;transition:right .25s;box-shadow:-10px 0 30px rgba(0,0,0,.15)}
    .mobile-drawer.open{right:0}
    .drawer-head{display:flex;align-items:center;gap:12px;padding:19px;border-bottom:1px solid var(--边框)}
    .drawer-head strong{flex:1;color:var(--深色)}
    .drawer-head a{padding:7px 12px;background:var(--主题色);color:#fff;border-radius:5px;font-size:13px}
    .drawer-close{border:0;background:none;font-size:27px;color:var(--次要);cursor:pointer}
    .drawer-menu{padding:10px 18px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 4px;border:0;border-bottom:1px solid #edf1f6;background:none;text-align:left;font-size:15px;color:var(--文字);cursor:pointer}
    .drawer-toggle:after{content:"＋";float:right;color:var(--次要)}
    .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 4px;color:var(--次要);font-size:14px}
    .footer{margin-top:70px;background:var(--深色);color:#cad6e6;padding:48px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:35px}
    .footer-brand{font-size:21px;color:#fff;font-weight:800;margin-bottom:14px}
    .footer p{margin:7px 0;color:#aebdd0;font-size:13px}
    .footer h3{font-size:15px;color:#fff;margin:0 0 14px}
    .footer-grid>div:not(:first-child) a{display:block;color:#b8c7d9;font-size:13px;margin:7px 0}
    .footer-grid a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.15);padding-top:18px;margin-top:34px;color:#9eafc5;font-size:12px}
    .tag-index-page{padding:58px 0 20px}
    .page-heading{text-align:center;max-width:700px;margin:0 auto 34px}
    .eyebrow{color:var(--主题色);font-size:13px;font-weight:800;letter-spacing:2px}
    .page-heading h1{margin:8px 0 12px;color:var(--深色);font-size:clamp(30px,4vw,48px);line-height:1.2}
    .page-heading p{margin:0;color:var(--次要);font-size:15px}
    .tag-cloud-panel{background:#fff;border:1px solid var(--边框);border-radius:16px;padding:35px;box-shadow:var(--阴影)}
    .tag-cloud{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:13px 15px}
    .tag-cloud a{display:inline-flex;align-items:center;gap:7px;padding:9px 16px;border:1px solid #d8e3f1;border-radius:999px;color:#34506f;background:#f8fbff;font-size:14px;transition:.2s}
    .tag-cloud a:nth-child(3n){font-size:17px}
    .tag-cloud a:nth-child(4n){color:var(--主题色);font-weight:700}
    .tag-cloud a:hover{color:#fff;background:var(--主题色);border-color:var(--主题色);transform:translateY(-2px)}
    .tag-cloud em{font-style:normal;font-size:11px;color:#8b9bb0}
    .tag-cloud a:hover em{color:#dceaff}
    .tag-intro{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}
    .tag-intro article{background:#fff;border:1px solid var(--边框);border-radius:12px;padding:20px}
    .tag-intro strong{display:block;color:var(--深色);margin-bottom:5px}
    .tag-intro span{display:block;color:var(--次要);font-size:13px}
    @media(max-width:1050px){
      .nav-link{padding:0 8px;font-size:14px}
      .logo{min-width:150px}
      .header-inner{gap:12px}
    }
    @media(max-width:820px){
      .topbar .container{padding:8px 0;align-items:flex-start;gap:4px}
      .topbar-links{gap:10px;flex-direction:column;text-align:right}
      .main-nav{display:none}
      .header-inner{min-height:66px}
      .header-btns{margin-left:auto}
      .member-link{display:none}
      .hamburger{display:block}
      .footer-grid{grid-template-columns:1fr 1fr}
      .tag-intro{grid-template-columns:1fr}
    }
    @media(max-width:560px){
      .container{width:min(100% - 28px,1180px)}
      .topbar{font-size:11px}
      .open-account{display:none}
      .tag-index-page{padding-top:38px}
      .tag-cloud-panel{padding:22px 14px}
      .tag-cloud{gap:10px}
      .tag-cloud a{padding:8px 12px;font-size:13px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin:5px 0}
      .mega-menu{display:none}
    }