:root{--primary:#0B3D91;--deep:#06285f;--sea:#087f8c;--foam:#f4fbfb;--ink:#172638;--muted:#64748b;--line:#dce7ed;--white:#fff;--shadow:0 16px 42px rgba(6,40,95,.1)}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f7fafb;font-family:-apple-system,BlinkMacSystemFont,"Noto Sans TC","PingFang TC","Microsoft JhengHei",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:auto}
    .topbar{background:#06285f;color:#dceefa;font-size:13px}
    .topbar .container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-contact{display:flex;gap:22px}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--deep);white-space:nowrap}
    .logo img{width:36px;height:36px;object-fit:contain}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:stretch;gap:4px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:6px;padding:27px 13px;color:#26384d;font-size:14px;font-weight:650;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:calc(100% - 1px);left:50%;transform:translateX(-50%);visibility:hidden;opacity:0;pointer-events:none;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);transition:.2s ease;z-index:30}
    .dropdown-panel{width:300px;padding:18px}
    .mega-menu{width:min(920px,calc(100vw - 40px));padding:24px}
    .nav-item:hover>.dropdown-panel,.nav-item:focus-within>.dropdown-panel,.nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{visibility:visible;opacity:1;pointer-events:auto}
    .dropdown-heading{margin:0 0 10px;color:var(--primary);font-size:13px;font-weight:800}
    .dropdown-panel>a:not(.dropdown-all){display:block;padding:8px 0;border-bottom:1px solid #edf2f5;font-size:14px}
    .dropdown-all,.mega-footer{display:inline-block;margin-top:15px;color:var(--primary);font-size:13px;font-weight:800}
    .mega-head{display:flex;justify-content:space-between;gap:20px;align-items:baseline;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--line)}
    .mega-head strong{color:var(--deep)}
    .mega-head span{font-size:13px;color:var(--muted)}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
    .mega-card{min-width:0;padding:13px;border:1px solid #e6eef2;background:#fbfdfd;transition:.2s}
    .mega-card:hover{border-color:#9dc5cc;transform:translateY(-2px)}
    .mega-card img{width:34px;height:34px;object-fit:contain;margin-bottom:7px}
    .mega-card strong{display:block;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .mega-card p{margin:5px 0 0;color:var(--muted);font-size:12px;line-height:1.5}
    .mega-meta{display:flex;flex-wrap:wrap;gap:4px 10px;color:var(--muted);font-size:11px;margin-top:7px}
    .mega-category-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
    .mega-category-list a{padding:5px 10px;background:#eef8f8;color:var(--sea);font-size:12px}
    .header-btns{display:flex;align-items:center;gap:12px}
    .member-slot{color:var(--primary);font-size:14px}
    .open-account{padding:9px 15px;background:var(--primary);color:#fff;font-size:13px;font-weight:700}
    .open-account:hover{background:var(--deep)}
    .hamburger{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;cursor:pointer;padding:10px}
    .hamburger span{display:block;width:20px;height:2px;margin:4px auto;background:var(--deep);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(2,20,42,.5);z-index:40}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(390px,88vw);height:100vh;overflow:auto;background:#fff;transform:translateX(100%);transition:.25s ease;z-index:50;box-shadow:-12px 0 35px rgba(0,0,0,.16)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-overlay.open{display:block}
    .drawer-head{display:flex;align-items:center;gap:12px;padding:18px 20px;border-bottom:1px solid var(--line)}
    .drawer-member{margin-right:auto;color:var(--primary)}
    .drawer-head>a{padding:7px 11px;background:var(--primary);color:#fff;font-size:13px}
    .drawer-close{border:0;background:none;font-size:28px;line-height:1;color:var(--muted);cursor:pointer}
    .drawer-menu{padding:10px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf2f5;background:none;text-align:left;color:var(--ink);font-weight:650;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--primary);font-size:20px;font-weight:400}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 15px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:14px}
    .footer{margin-top:70px;background:#071f45;color:#d9e7f1}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:40px;padding:56px 0 42px}
    .footer .logo{color:#fff;margin-bottom:16px}
    .footer-brand p{max-width:350px;margin:0;color:#a9bfd0;font-size:13px}
    .footer h3{margin:0 0 14px;color:#fff;font-size:15px}
    .footer-links,.footer-contact{display:grid;gap:8px;font-size:13px;color:#abc1d1}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-social{margin-top:17px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid rgba(220,238,248,.16);color:#91aabe;font-size:12px}
    .footer-legal{display:flex;gap:18px}
    .article-page{padding:52px 0 10px}
    .article-layout{display:grid;grid-template-columns:minmax(0,820px) 280px;gap:42px;align-items:start}
    .article-main{min-width:0;background:#fff;border:1px solid var(--line);box-shadow:0 8px 28px rgba(6,40,95,.05)}
    .article-header{padding:34px 42px 28px;border-bottom:1px solid var(--line)}
    .article-kicker{display:inline-flex;padding:5px 10px;background:#eaf7f7;color:var(--sea);font-size:12px;font-weight:800}
    .article-title{margin:17px 0 13px;color:var(--deep);font-size:clamp(28px,4vw,44px);line-height:1.3;letter-spacing:0}
    .article-meta{display:flex;flex-wrap:wrap;gap:8px 20px;color:var(--muted);font-size:13px}
    .article-cover{width:100%;max-height:460px;object-fit:cover}
    .article-body{min-width:0;max-width:100%;overflow-x:auto;padding:34px 42px;color:#304256;font-size:16px}
    .article-body>*{max-width:100%}
    .article-body h2,.article-body h3{color:var(--deep);line-height:1.4}
    .article-body h2{margin-top:28px}
    .article-body a{color:var(--primary);text-decoration:underline}
    .article-body img,.article-body table{max-width:100%;height:auto}
    .article-body blockquote{margin:22px 0;padding:16px 20px;border-left:4px solid var(--sea);background:var(--foam);color:#496173}
    .article-tags{padding:0 42px 28px;display:flex;flex-wrap:wrap;gap:8px}
    .article-tags a{padding:5px 10px;background:#f0f5f8;color:var(--primary);font-size:12px}
    .article-pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:24px 42px;border-top:1px solid var(--line)}
    .article-pager a{display:block;padding:13px;background:#f4f8fa;color:var(--primary);font-size:13px}
    .article-pager a:last-child{text-align:right}
    .article-pager small{display:block;color:var(--muted);margin-bottom:3px}
    .related-articles{margin-top:28px}
    .related-articles h2{margin:0 0 15px;color:var(--deep);font-size:22px}
    .related-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .related-card{padding:16px;background:#fff;border:1px solid var(--line)}
    .related-card a{color:var(--deep);font-weight:750}
    .related-card p{margin:5px 0 0;color:var(--muted);font-size:13px}
    .article-aside{position:sticky;top:20px}
    .aside-box{margin-bottom:16px;padding:22px;background:#fff;border:1px solid var(--line)}
    .aside-box h2{margin:0 0 14px;color:var(--deep);font-size:18px}
    .aside-box p{margin:0;color:var(--muted);font-size:13px}
    .aside-action{display:block;margin-top:15px;padding:11px;text-align:center;background:var(--primary);color:#fff;font-size:13px;font-weight:700}
    @media(max-width:1050px){
      .main-nav{display:none}
      .hamburger{display:block}
      .article-layout{grid-template-columns:minmax(0,1fr) 250px}
    }
    @media(max-width:760px){
      .container{width:min(100% - 28px,620px)}
      .topbar .container{padding:7px 0;align-items:flex-start}
      .topbar-contact{display:grid;gap:0;text-align:right}
      .header-inner{min-height:68px;gap:12px}
      .header-btns{margin-left:auto}
      .member-slot{display:none}
      .open-account{display:none}
      .mega-grid{grid-template-columns:1fr 1fr}
      .mega-head{display:block}
      .mega-head span{display:block;margin-top:4px}
      .article-page{padding-top:28px}
      .article-layout{display:block}
      .article-aside{position:static;margin-top:22px}
      .article-header,.article-body{padding-left:22px;padding-right:22px}
      .article-tags{padding-left:22px;padding-right:22px}
      .article-pager{padding-left:22px;padding-right:22px}
      .related-list{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:38px 0}
      .footer-bottom{display:block}
      .footer-legal{margin-top:10px}
    }
    @media(max-width:480px){
      .topbar-welcome{font-size:12px}
      .topbar-contact{font-size:11px}
      .logo span{font-size:14px}
      .mega-grid{grid-template-columns:1fr}
      .article-title{font-size:29px}
      .article-pager{grid-template-columns:1fr}
      .article-pager a:last-child{text-align:left}
      .footer-grid{grid-template-columns:1fr}
    }