:root{
      --theme:#0B3D91;
      --deep:#071b49;
      --ink:#13264d;
      --muted:#637394;
      --line:#dce5f2;
      --pale:#f3f7fc;
      --white:#fff;
      --shadow:0 18px 50px rgba(7,27,73,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f8fbff;font-family:-apple-system,BlinkMacSystemFont,"Noto Sans 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:var(--deep);color:#d9e5fb;font-size:13px}
    .topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-contact{display:flex;gap:20px}
    .topbar a{color:#edf4ff}
    .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:28px}
    .logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--deep);white-space:nowrap}
    .logo img{width:34px;height:34px;object-fit:contain}
    .logo span{font-size:19px}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:center;gap:4px;list-style:none;padding:0;margin:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:5px;padding:26px 12px;font-weight:700;font-size:14px;color:#22365d}
    .nav-link:hover{color:var(--theme)}
    .has-arrow:after{content:"⌄";font-size:13px;color:#8090aa}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 2px);left:50%;transform:translateX(-50%) translateY(8px);width:310px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:0 0 16px 16px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.2s;z-index:30}
    .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;top:-12px;left:0;right:0;height:12px}
    .dropdown-title,.mega-menu-title{display:flex;flex-direction:column;gap:2px;margin-bottom:12px;color:var(--deep)}
    .mega-menu-title span{font-size:12px;color:var(--muted);font-weight:400}
    .dropdown-article{display:block;padding:9px 0;border-bottom:1px solid #edf1f7;font-size:13px;font-weight:700}
    .dropdown-article:hover{color:var(--theme)}
    .dropdown-more,.mega-footer{display:block;margin-top:14px;color:var(--theme);font-size:13px;font-weight:800}
    .mega-menu{width:680px}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{display:block;padding:11px;border:1px solid #e4ebf5;border-radius:12px;background:#fbfdff}
    .mega-card:hover{border-color:#9ab7e5;box-shadow:0 8px 18px rgba(11,61,145,.08)}
    .mega-card-head{display:flex;align-items:center;gap:7px;font-size:12px}
    .mega-card-head img{width:25px;height:25px;object-fit:contain;border-radius:6px}
    .mega-stats{display:flex;gap:7px;margin-top:8px;color:var(--theme);font-size:10px}
    .mega-card p{font-size:10px;color:var(--muted);margin:5px 0 0;line-height:1.45}
    .mega-split{display:grid;grid-template-columns:145px 1fr;gap:15px}
    .mega-categories{display:flex;flex-direction:column;gap:5px}
    .mega-categories a{padding:6px 8px;border-radius:7px;font-size:12px}
    .mega-categories a:hover{background:#edf4ff;color:var(--theme)}
    .video-mega-card,.product-mega-card{display:flex;gap:8px;align-items:flex-start}
    .video-mega-card>img,.product-mega-card>img{width:54px;height:42px;border-radius:6px;object-fit:cover;flex:none}
    .video-mega-copy strong,.product-mega-copy strong{display:block;font-size:11px;line-height:1.4}
    .video-mega-copy p,.product-mega-copy p{font-size:10px;margin:2px 0}
    .video-duration,.product-meta{font-size:9px;color:var(--theme)}
    .mega-video{width:760px}
    .header-btns{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:11px 20px;font-weight:800;border:1px solid transparent;transition:.2s}
    .btn-primary{background:var(--theme);color:#fff}
    .btn-primary:hover{background:#082e70;transform:translateY(-1px)}
    .btn-small{padding:8px 15px;font-size:13px}
    .hamburger{display:none;border:0;background:none;padding:7px;cursor:pointer}
    .hamburger span{display:block;width:24px;height:2px;background:var(--deep);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{display:none;position:fixed;inset:0;background:rgba(3,17,47,.52);z-index:50}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(390px,88vw);height:100vh;background:#fff;z-index:60;transform:translateX(100%);transition:.3s;overflow:auto;box-shadow:-15px 0 35px rgba(0,0,0,.15)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:12px;padding:18px 20px;border-bottom:1px solid var(--line)}
    .drawer-head>a{margin-left:auto;color:var(--theme);font-weight:800;font-size:14px}
    .drawer-close{border:0;background:#eef3fa;color:var(--deep);width:32px;height:32px;border-radius:50%;font-size:22px;line-height:1;cursor:pointer}
    .drawer-menu{padding:12px 20px 35px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf1f7;background:transparent;text-align:left;color:var(--ink);font-weight:800;cursor:pointer}
    .drawer-toggle:after{content:"＋";float:right;color:var(--theme)}
    .drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:5px 0 8px 14px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}
    .drawer-submenu a:hover{color:var(--theme)}
    .footer{margin-top:80px;background:var(--deep);color:#d9e5fb}
    .footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:45px;padding:58px 0 45px}
    .footer .logo{color:#fff}
    .footer-brand p{max-width:330px;color:#aebedb;font-size:14px}
    .footer-title{margin:4px 0 17px;color:#fff;font-size:15px}
    .footer-links,.footer-contact{display:flex;flex-direction:column;gap:9px;font-size:13px}
    .footer-links a,.footer-contact a{color:#b8c8e2}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid rgba(255,255,255,.14);font-size:12px;color:#9fb1d2}
    .category-page{padding:55px 0 0}
    .page-intro{padding:34px 38px;border-radius:24px;background:linear-gradient(120deg,#eaf3ff,#fff);border:1px solid #d8e7fb;margin-bottom:30px}
    .eyebrow{display:inline-flex;padding:5px 11px;border-radius:999px;background:#dbeaff;color:var(--theme);font-size:12px;font-weight:800}
    .page-intro h1{margin:12px 0 8px;font-size:clamp(28px,4vw,44px);line-height:1.2;color:var(--deep)}
    .page-intro p{max-width:720px;margin:0;color:var(--muted)}
    .article-list{display:flex;flex-direction:column;gap:18px}
    .article-card{display:grid;grid-template-columns:300px minmax(0,1fr);gap:24px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 26px rgba(11,61,145,.04);overflow:hidden}
    .article-card:hover{border-color:#9bb9e8;box-shadow:var(--shadow)}
    .article-cover{width:100%;height:205px;object-fit:cover;border-radius:12px;background:#e9f0f8}
    .article-body{min-width:0;padding:2px 4px 2px 0}
    .article-kicker{display:inline-block;margin-bottom:7px;color:var(--theme);font-size:12px;font-weight:800}
    .article-title{margin:0 0 8px;font-size:22px;line-height:1.35;color:var(--deep)}
    .article-title a:hover{color:var(--theme)}
    .article-summary{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;margin:0 0 13px;color:#5f6f8b;font-size:14px}
    .article-meta{display:flex;flex-wrap:wrap;gap:8px 16px;color:#7d8ba2;font-size:12px}
    .article-tags{margin-top:10px;display:flex;flex-wrap:wrap;gap:6px}
    .article-tags span{padding:3px 8px;border-radius:5px;background:#f0f5fb;color:#617493;font-size:11px}
    .article-actions{margin-top:14px}
    .read-more{color:var(--theme);font-size:13px;font-weight:800}
    .read-more:after{content:"  →"}
    .pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin:36px 0}
    .pagination a{min-width:36px;height:36px;padding:6px 10px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--muted);font-size:13px}
    .pagination a:hover,.pagination a.active{background:var(--theme);border-color:var(--theme);color:#fff}
    @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:7px 0;align-items:flex-start}
      .topbar-contact{flex-direction:column;gap:0;text-align:right}
      .header-inner{min-height:68px}
      .header-btns .btn{display:none}
      .mega-menu,.dropdown-panel{display:none}
      .category-page{padding-top:28px}
      .page-intro{padding:25px 22px}
      .article-card{grid-template-columns:1fr;gap:15px;padding:13px}
      .article-cover{height:190px}
      .article-title{font-size:20px}
      .footer{margin-top:50px}
      .footer-main{grid-template-columns:1fr;gap:28px;padding:42px 0 32px}
      .footer-bottom{flex-direction:column;gap:4px}
    }