:root{
      --primary:#0B3D91;
      --primary-dark:#082b67;
      --ink:#182538;
      --muted:#6c7888;
      --line:#e4e9f0;
      --surface:#f5f7fa;
      --white:#fff;
      --shadow:0 16px 45px rgba(20,43,75,.10);
      --radius:16px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f7f9fc;font-family:"Microsoft YaHei","PingFang SC",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:#0f1d31;color:#cbd6e6;font-size:13px}
    .topbar .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px}
    .topbar-links{display:flex;gap:22px}
    .topbar a{color:#d9e4f3;transition:color .2s}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:30;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);box-shadow:0 3px 16px rgba(19,42,76,.04)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--primary);font-weight:800;font-size:20px;white-space:nowrap}
    .logo img{width:38px;height:38px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;justify-content:center;align-items:stretch;gap:2px;list-style:none;padding:0;margin:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:5px;padding:27px 14px;color:#26364b;font-size:15px;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--primary)}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);width:310px;background:#fff;border:1px solid var(--line);border-radius:0 0 14px 14px;box-shadow:var(--shadow);padding:20px;opacity:0;visibility:hidden;pointer-events:none;transition:.22s}
    .mega-menu{width:650px}
    .nav-item:after{content:"";position:absolute;left:0;right:0;height:14px;top:100%}
    .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;transform:translateX(-50%) translateY(0)}
    .dropdown-title,.mega-heading{margin:0 0 12px;color:var(--primary);font-size:16px;font-weight:800}
    .dropdown-list{display:grid;gap:8px}
    .dropdown-list a{display:block;color:#516177;padding:5px 0;border-bottom:1px solid #f0f2f5;font-size:13px}
    .dropdown-list a:hover{color:var(--primary)}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{min-width:0;display:flex;flex-direction:column;gap:3px;border:1px solid #edf0f4;border-radius:10px;padding:10px;background:#fbfcfe;transition:.2s}
    .mega-card:hover{border-color:#9eb5d9;transform:translateY(-2px)}
    .mega-card img{width:35px;height:35px;object-fit:contain;border-radius:7px;margin-bottom:3px}
    .mega-card strong{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .mega-card small{font-size:11px;color:var(--muted);line-height:1.45}
    .mega-footer{display:block;margin-top:15px;padding-top:12px;border-top:1px solid var(--line);color:var(--primary);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:12px;white-space:nowrap}
    .member-link{color:var(--primary);font-size:13px;font-weight:700}
    .open-account{background:var(--primary);color:#fff;border-radius:7px;padding:9px 14px;font-size:13px;font-weight:700}
    .open-account:hover{background:var(--primary-dark)}
    .hamburger{display:none;border:0;background:transparent;padding:7px;cursor:pointer}
    .hamburger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}
    .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;background:rgba(5,19,39,.52);z-index:80;opacity:0;visibility:hidden;transition:.25s}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;right:0;top:0;bottom:0;width:min(390px,88vw);background:#fff;z-index:90;transform:translateX(100%);transition:.28s;overflow-y:auto;box-shadow:-12px 0 35px rgba(0,0,0,.18)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:14px;padding:20px;border-bottom:1px solid var(--line);color:var(--primary);font-weight:800}
    .drawer-head>a{margin-left:auto;background:var(--primary);color:#fff;border-radius:6px;padding:6px 11px;font-size:13px}
    .drawer-close{border:0;background:transparent;font-size:28px;line-height:1;color:#718096;cursor:pointer}
    .drawer-menu{padding:10px 20px 35px}
    .drawer-link,.drawer-toggle{width:100%;display:block;padding:14px 0;border:0;border-bottom:1px solid #edf0f4;background:transparent;text-align:left;color:var(--ink);font:inherit;font-size:15px;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--primary);font-size:20px;line-height:1}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{max-height:0;overflow:hidden;transition:max-height .25s;background:#f6f8fb;padding:0 13px}
    .drawer-submenu.open{max-height:700px;padding-top:7px;padding-bottom:7px}
    .drawer-submenu a{display:block;padding:7px 0;color:#5d6b7e;font-size:13px}
    .footer{margin-top:70px;background:#101d30;color:#aebbd0}
    .footer .container{padding-top:48px}
    .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.1fr;gap:38px}
    .footer h3{margin:0 0 16px;color:#fff;font-size:16px}
    .footer p{margin:7px 0;font-size:13px}
    .footer-brand p{max-width:300px;color:#aebbd0}
    .footer-links{display:grid;gap:7px}
    .footer-links a{font-size:13px;color:#aebbd0}
    .footer-links a:hover,.footer a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:38px;padding:19px 0;color:#7f8da4;font-size:12px}
    .tag-index-page{padding:0 0 5px}
    .page-hero{padding:74px 20px 70px;text-align:center;background:linear-gradient(135deg,#eef4fb 0%,#fff 53%,#edf3fb 100%);border-bottom:1px solid #e0e7f1}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--primary)}
    .page-hero h1{margin:15px 0 10px;font-size:clamp(32px,5vw,54px);line-height:1.18;letter-spacing:-.04em;color:#15243a}
    .page-hero p{max-width:660px;margin:0 auto;color:#68778a;font-size:16px}
    .tag-index-content{padding:58px 0 10px}
    .content-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:25px}
    .content-heading h2{margin:0;font-size:25px;color:#182b45}
    .content-heading p{margin:0;color:var(--muted);font-size:13px}
    .tag-cloud-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px;box-shadow:0 10px 30px rgba(20,43,75,.05)}
    .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;border:1px solid #dfe6ef;border-radius:999px;padding:9px 18px;color:#40546d;background:#fbfcfe;font-size:14px;transition:.2s}
    .tag-cloud a:hover{background:var(--primary);border-color:var(--primary);color:#fff;transform:translateY(-2px);box-shadow:0 7px 14px rgba(11,61,145,.18)}
    .tag-cloud a:nth-child(3n){font-size:17px;color:var(--primary);font-weight:700}
    .tag-cloud a:nth-child(5n){font-size:12px;padding-left:14px;padding-right:14px}
    .tag-guide{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}
    .guide-card{padding:24px;background:#fff;border:1px solid var(--line);border-radius:14px}
    .guide-card .guide-icon{width:42px;height:42px;display:grid;place-items:center;background:#eaf1fc;border-radius:12px;color:var(--primary);font-size:20px;font-weight:800}
    .guide-card h3{margin:14px 0 5px;font-size:17px}
    .guide-card p{margin:0;color:var(--muted);font-size:13px}
    .tag-note{margin-top:28px;padding:20px 24px;border-left:4px solid var(--primary);border-radius:8px;background:#edf3fc;color:#53657c;font-size:13px}
    @media(max-width:1050px){
      .nav-link{padding-left:9px;padding-right:9px;font-size:14px}
      .header-inner{gap:12px}
      .member-link{display:none}
    }
    @media(max-width:800px){
      .container{width:min(100% - 30px,620px)}
      .topbar .container{padding:8px 0;align-items:flex-start;flex-direction:column;gap:2px}
      .topbar-links{gap:12px;flex-wrap:wrap}
      .header-inner{min-height:68px}
      .main-nav{display:none}
      .hamburger{display:block}
      .mega-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
      .tag-guide{grid-template-columns:1fr}
      .page-hero{padding:54px 16px 52px}
      .tag-cloud-panel{padding:23px 17px}
      .content-heading{display:block}
      .content-heading p{margin-top:6px}
    }
    @media(max-width:520px){
      .open-account{display:none}
      .footer-grid{grid-template-columns:1fr}
      .footer{margin-top:45px}
      .page-hero h1{font-size:36px}
      .tag-cloud{gap:9px}
      .tag-cloud a{padding:7px 12px;font-size:13px}
    }