:root{
      --theme:#0B3D91;
      --ink:#172033;
      --muted:#64748b;
      --line:#dbe3ef;
      --surface:#f4f7fb;
      --white:#fff;
      --shadow:0 12px 35px rgba(15,35,65,.09);
      --radius:8px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fff;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",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-inline:auto}
    .topbar{background:#eef3f9;color:#506078;font-size:13px;border-bottom:1px solid #e1e8f1}
    .topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-contact{display:flex;gap:22px;flex-wrap:wrap}
    .topbar a:hover,.footer a:hover{color:var(--theme)}
    .header{position:relative;z-index:30;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:76px;display:flex;align-items:center;gap:28px}
    .logo{display:inline-flex;align-items:center;gap:10px;flex:none;font-size:20px;font-weight:800;color:var(--theme)}
    .logo img{width:34px;height:34px;object-fit:contain}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:stretch;gap:3px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;min-height:76px;padding:0 13px;font-size:15px;font-weight:650;white-space:nowrap}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme);background:#f5f8fc}
    .has-arrow:after{content:"";width:6px;height:6px;margin-left:8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;width:330px;padding:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translate(-50%,6px);transition:.2s ease}
    .mega-menu{width:min(700px,calc(100vw - 32px))}
    .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;transform:translate(-50%,0)}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;height:10px;top:-10px}
    .panel-title,.mega-block h3{margin:0 0 13px;color:var(--theme);font-size:15px}
    .panel-list{display:grid;gap:9px}
    .panel-list a{font-size:14px;padding-bottom:8px;border-bottom:1px solid #edf1f6}
    .panel-list a:hover,.footer-links a:hover{color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
    .mega-block p{margin:7px 0;color:var(--muted);font-size:13px}
    .broker-mini,.video-mini,.tool-mini,.product-mini{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid #edf1f6}
    .broker-mini img,.video-mini img,.tool-mini img,.product-mini img{width:34px;height:34px;object-fit:cover;border-radius:5px;background:#edf2f8;flex:none}
    .broker-mini span,.video-mini span,.tool-mini span,.product-mini span{display:grid;min-width:0}
    .broker-mini strong,.video-mini strong,.tool-mini strong,.product-mini strong{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .broker-mini small,.video-mini small,.tool-mini small,.product-mini small{font-size:11px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .mega-footer{display:inline-block;margin-top:14px;color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px;flex:none}
    .member-link{color:var(--theme);font-size:14px;font-weight:700}
    .open-account{padding:8px 14px;border-radius:5px;background:var(--theme);color:#fff;font-size:13px;font-weight:700}
    .hamburger{display:none;width:42px;height:42px;padding:10px;border:1px solid var(--line);background:#fff;border-radius:5px;cursor:pointer}
    .hamburger span{display:block;width:20px;height:2px;margin:4px auto;background:var(--ink);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{position:fixed;inset:0;background:rgba(12,25,46,.48);opacity:0;visibility:hidden;transition:.2s;z-index:40}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(390px,88vw);background:#fff;z-index:50;transform:translateX(100%);transition:.25s ease;overflow-y:auto;box-shadow:-12px 0 32px rgba(0,0,0,.14)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:14px;padding:20px;border-bottom:1px solid var(--line);font-weight:750}
    .drawer-head span{margin-right:auto;color:var(--theme)}
    .drawer-head a{padding:6px 11px;background:var(--theme);color:#fff;border-radius:4px;font-size:13px}
    .drawer-close{width:32px;height:32px;border:0;background:#eef3f9;color:var(--ink);border-radius:4px;font-size:23px;line-height:1;cursor:pointer}
    .drawer-menu{padding:10px 20px 30px}
    .drawer-link,.drawer-toggle{display:flex;width:100%;align-items:center;justify-content:space-between;padding:14px 0;border:0;border-bottom:1px solid #edf1f6;background:transparent;text-align:left;font-weight:650;cursor:pointer}
    .drawer-toggle:after{content:"+";color:var(--theme);font-size:20px;font-weight:400}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:grid;gap:0;max-height:0;overflow:hidden;transition:max-height .25s ease;padding-left:14px}
    .drawer-submenu.open{max-height:700px}
    .drawer-submenu a{padding:9px 0;color:var(--muted);font-size:14px;border-bottom:1px solid #f0f3f7}
    .footer{margin-top:70px;background:#101a2b;color:#c9d3e3}
    .footer-main{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.2fr;gap:34px;padding:48px 0 38px}
    .footer h3{margin:0 0 15px;color:#fff;font-size:15px}
    .footer-brand h3{color:#fff;font-size:20px}
    .footer p{margin:7px 0;font-size:13px;color:#aab8cc}
    .footer-links{display:grid;gap:8px}
    .footer-links a,.footer-contact a{font-size:13px;color:#c9d3e3}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:17px 0;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#92a2ba}
    .article-page{padding:44px 0 0;background:#f7f9fc}
    .article-wrap{width:min(900px,calc(100% - 40px));margin:0 auto}
    .article-breadcrumb{display:flex;gap:8px;align-items:center;margin-bottom:18px;color:var(--muted);font-size:13px}
    .article-breadcrumb a{color:var(--theme)}
    .article-header{padding:34px 42px 30px;background:#fff;border:1px solid var(--line);border-bottom:0;border-radius:var(--radius) var(--radius) 0 0}
    .article-kicker{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;color:var(--theme);font-size:13px;font-weight:750}
    .article-kicker:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--theme)}
    .article-title{margin:0;color:#101a2b;font-size:clamp(28px,4vw,44px);line-height:1.25;letter-spacing:0}
    .article-meta{display:flex;flex-wrap:wrap;gap:15px;margin-top:20px;padding-top:18px;border-top:1px solid #edf1f6;color:var(--muted);font-size:13px}
    .article-content{padding:38px 42px;background:#fff;border:1px solid var(--line);border-top:0;min-width:0;max-width:100%;overflow-x:auto}
    .article-content>*{max-width:100%}
    .article-content p{margin:0 0 20px}
    .article-content h2,.article-content h3{margin:32px 0 14px;color:#101a2b;line-height:1.35}
    .article-content h2{font-size:25px}
    .article-content h3{font-size:20px}
    .article-content img,.article-content video{height:auto;margin:22px 0}
    .article-content table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:22px 0}
    .article-content th,.article-content td{padding:10px 12px;border:1px solid var(--line);text-align:left;white-space:nowrap}
    .article-content blockquote{margin:24px 0;padding:14px 18px;border-left:4px solid var(--theme);background:#f2f6fc;color:#4d5c72}
    .article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px;padding-top:20px;border-top:1px solid #edf1f6;color:var(--theme);font-size:13px}
    .article-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}
    .article-nav a{display:block;padding:17px 19px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);font-size:14px}
    .article-nav a:last-child{text-align:right}
    .article-nav small{display:block;margin-bottom:5px;color:var(--muted)}
    .like-articles{margin-top:42px}
    .like-articles h2{font-size:22px;margin:0 0 15px}
    .like-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .like-card{padding:16px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}
    .like-card h3{margin:0 0 8px;font-size:15px;line-height:1.45}
    .like-card p{margin:0;color:var(--muted);font-size:13px}
    @media(max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:block}
      .footer-main{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:700px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{padding:8px 0;align-items:flex-start;flex-direction:column;gap:2px}
      .topbar-contact{gap:12px}
      .member-link{display:none}
      .open-account{display:none}
      .article-page{padding-top:28px}
      .article-wrap{width:min(100% - 28px,900px)}
      .article-header,.article-content{padding:25px 20px}
      .article-title{font-size:29px}
      .article-nav,.like-grid{grid-template-columns:1fr}
      .article-nav a:last-child{text-align:left}
      .footer-main{grid-template-columns:1fr;gap:25px;padding:34px 0}
      .footer-bottom{align-items:flex-start;flex-direction:column}
    }