:root{
      --primary:#0B3D91;
      --primary-dark:#082d6d;
      --ink:#172033;
      --muted:#667085;
      --line:#e5eaf1;
      --surface:#ffffff;
      --soft:#f4f7fb;
      --accent:#b68b55;
      --shadow:0 18px 50px rgba(15,35,70,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f7f9fc;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","PingFang HK","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:0 auto}

    .topbar{background:#101827;color:#d9e2f2;font-size:13px}
    .topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between}
    .topbar-contact{display:flex;gap:22px}
    .topbar a:hover{color:#fff}

    .header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}
    .header-inner{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;min-width:190px;color:var(--primary);font-weight:800;font-size:19px}
    .logo img{width:34px;height:34px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:center;justify-content:center;gap:3px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:6px;padding:28px 13px;font-size:14px;font-weight:650;white-space:nowrap}
    .nav-link:hover{color:var(--primary)}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg);margin-top:-4px}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%) translateY(8px);width:290px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:0 0 16px 16px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.2s ease;z-index:40}
    .mega-menu{width:520px}
    .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:translateX(-50%) translateY(0)}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
    .dropdown-list{display:grid;gap:4px}
    .dropdown-list a,.mega-links a{display:block;padding:9px 10px;border-radius:8px;font-size:14px}
    .dropdown-list a:hover,.mega-links a:hover{background:var(--soft);color:var(--primary)}
    .mega-heading{margin:0 0 13px;font-size:14px;color:var(--primary)}
    .mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
    .mega-card{display:flex;gap:9px;padding:9px;border:1px solid var(--line);border-radius:10px;min-width:0}
    .mega-card:hover{border-color:#a9bfdf;background:#f8fbff}
    .mega-card img{width:36px;height:36px;border-radius:8px;object-fit:cover;flex:none}
    .mega-card span{display:block;min-width:0;font-size:11px;color:var(--muted);line-height:1.35}
    .mega-card strong{display:block;color:var(--ink);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .mega-footer{display:block;margin-top:14px;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:10px;white-space:nowrap}
    .member-btn{color:var(--primary);font-size:13px;font-weight:700}
    .open-btn{padding:9px 16px;color:#fff;background:var(--primary);border-radius:9px;font-size:13px;font-weight:700}
    .open-btn:hover{background:var(--primary-dark)}
    .hamburger{display:none;border:0;background:transparent;padding:7px;cursor:pointer}
    .hamburger span{display:block;width:23px;height:2px;margin:5px 0;background:var(--ink);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{display:none;position:fixed;inset:0;background:rgba(8,20,40,.48);z-index:50}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(380px,88vw);background:#fff;z-index:60;transform:translateX(100%);transition:.28s ease;box-shadow:-15px 0 45px rgba(0,0,0,.16);overflow:auto}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:12px;padding:18px 20px;border-bottom:1px solid var(--line);font-weight:800;color:var(--primary)}
    .drawer-head>a{margin-left:auto;padding:7px 12px;border-radius:7px;background:var(--primary);color:#fff;font-size:13px}
    .drawer-close{border:0;background:transparent;font-size:28px;color:var(--muted);cursor:pointer;line-height:1}
    .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:var(--ink);font-weight:650;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--primary);font-size:19px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 16px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}

    .article-page{padding:48px 0 80px}
    .article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:30px;align-items:start}
    .article-main,.article-aside{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 28px rgba(15,35,70,.05)}
    .article-main{padding:clamp(24px,4vw,52px)}
    .article-kicker{display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;color:var(--primary);font-size:13px;font-weight:800}
    .article-kicker:before{content:"";width:22px;height:2px;background:var(--accent)}
    .article-title{margin:0 0 16px;color:#111b2d;font-size:clamp(30px,4.5vw,52px);line-height:1.2;letter-spacing:-.03em}
    .article-meta{display:flex;flex-wrap:wrap;gap:10px 20px;padding:15px 0 22px;border-bottom:1px solid var(--line);color:var(--muted);font-size:13px}
    .article-cover{margin:26px 0;border-radius:14px;overflow:hidden;background:var(--soft)}
    .article-cover img{width:100%;max-height:460px;object-fit:cover}
    .article-body{min-width:0;max-width:100%;overflow-x:auto;padding-top:8px;font-size:16px;color:#344054}
    .article-body>*{max-width:100%}
    .article-body h2,.article-body h3{color:#172033;line-height:1.35;margin:32px 0 12px}
    .article-body p{margin:0 0 18px}
    .article-body a{color:var(--primary);text-decoration:underline}
    .article-body blockquote{margin:24px 0;padding:17px 20px;border-left:4px solid var(--primary);background:#f2f6fc;color:#475467}
    .article-body table{width:100%;border-collapse:collapse}
    .article-body th,.article-body td{padding:10px;border:1px solid var(--line);text-align:left}
    .article-body pre{max-width:100%;overflow:auto;padding:16px;background:#101827;color:#dbeafe;border-radius:10px}
    .article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px;padding-top:20px;border-top:1px solid var(--line)}
    .article-tags a{padding:6px 11px;border-radius:999px;background:#eef4fc;color:var(--primary);font-size:12px}
    .article-pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:34px}
    .pager-item{padding:14px;border:1px solid var(--line);border-radius:11px;background:#fbfcfe}
    .pager-item.next{text-align:right}
    .pager-label{display:block;margin-bottom:4px;color:var(--muted);font-size:12px}
    .pager-title{font-size:14px;font-weight:700;color:var(--primary)}
    .article-aside{padding:22px;position:sticky;top:105px}
    .aside-title{margin:0 0 16px;font-size:17px}
    .aside-card{display:block;padding:13px 0;border-top:1px solid var(--line)}
    .aside-card:first-of-type{border-top:0}
    .aside-card strong{display:block;font-size:14px;line-height:1.45}
    .aside-card small{display:block;margin-top:5px;color:var(--muted);font-size:12px}
    .aside-cta{display:block;margin-top:20px;padding:13px;text-align:center;border-radius:9px;background:var(--primary);color:#fff;font-size:14px;font-weight:700}

    .footer{padding:52px 0 20px;background:#101827;color:#cbd5e1}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:35px}
    .footer-brand strong{display:block;margin-bottom:13px;color:#fff;font-size:20px}
    .footer p{margin:8px 0;font-size:13px;line-height:1.8}
    .footer h3{margin:0 0 13px;color:#fff;font-size:14px}
    .footer-grid>div:not(.footer-brand) a,.footer-grid>div:not(.footer-brand)>span{display:block;margin:7px 0;color:#aebbd0;font-size:13px}
    .footer 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,.13);font-size:12px;color:#8795aa}

    @media (max-width:1020px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{justify-content:space-between}
      .logo{min-width:0}
      .article-layout{grid-template-columns:1fr}
      .article-aside{position:static}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:640px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{height:auto;min-height:38px;padding:7px 0;align-items:flex-start;gap:8px;flex-direction:column}
      .topbar-contact{gap:12px;flex-wrap:wrap}
      .header-inner{height:68px}
      .member-btn{display:none}
      .open-btn{padding:8px 11px}
      .article-page{padding:28px 0 55px}
      .article-main{padding:22px 18px}
      .article-title{font-size:32px}
      .article-pager{grid-template-columns:1fr}
      .pager-item.next{text-align:left}
      .footer-grid{grid-template-columns:1fr 1fr;gap:24px 16px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }