:root{--primary:#0B3D91;--ink:#14243a;--muted:#607087;--line:#dce6ef;--surface:#f4f8fb;--foam:#fff;--teal:#087e83;--radius:18px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--foam);font-family:system-ui,-apple-system,"Noto Sans TC","Microsoft JhengHei",sans-serif;line-height:1.65}
    body.drawer-locked{overflow:hidden}
    a{color:inherit;text-decoration:none}
    button{font:inherit;cursor:pointer}
    img{display:block;max-width:100%}
    .container{width:min(1200px,calc(100% - 40px));margin-inline:auto}
    :focus-visible{outline:3px solid #36b7b5;outline-offset:3px}

    .topbar{background:#0b294e;color:#e8f3fa;font-size:12px}
    .topbar .container{min-height:35px;display:flex;align-items:center;justify-content:space-between;gap:16px}
    .topbar-contact{display:flex;gap:20px;flex-wrap:wrap}
    .topbar a:hover{color:#a6e8e2}
    .header{position:relative;z-index:30;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:22px}
    .logo{display:inline-flex;align-items:center;gap:10px;min-width:0;color:var(--primary);font-size:19px;font-weight:800;white-space:nowrap}
    .logo img{width:38px;height:38px;object-fit:contain}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:center;gap:2px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:6px;padding:27px 10px;color:#263a55;font-size:13px;font-weight:700;white-space:nowrap}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--primary)}
    .has-arrow::after{content:"";width:6px;height:6px;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:0;z-index:35;background:#fff;border:1px solid var(--line);box-shadow:0 20px 50px #102c4a25;border-radius:0 0 18px 18px;opacity:0;visibility:hidden;transform:translateY(5px);transition:opacity .18s,transform .18s,visibility .18s}
    .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:translateY(0)}
    .dropdown-panel{width:290px;padding:18px}
    .dropdown-heading{margin:0 0 8px;color:var(--primary);font-size:13px;font-weight:800}
    .dropdown-panel>a{display:block;padding:9px 4px;border-bottom:1px solid #edf1f5;font-size:13px}
    .dropdown-panel>a:hover,.mega-category-list a:hover{color:var(--primary)}
    .dropdown-panel .dropdown-all{border:0;color:var(--primary);font-weight:800}
    .mega-menu{left:50%;width:min(850px,calc(100vw - 40px));padding:22px;transform:translate(-50%,5px)}
    .nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{transform:translate(-50%,0)}
    .nav-item:nth-last-child(-n+4)>.mega-menu{left:auto;right:0;transform:translateY(5px)}
    .nav-item:nth-last-child(-n+4):hover>.mega-menu,.nav-item:nth-last-child(-n+4):focus-within>.mega-menu{transform:translateY(0)}
    .mega-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:15px}
    .mega-head strong{color:var(--primary);font-size:17px}
    .mega-head span{color:var(--muted);font-size:12px}
    .mega-category-list{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:15px}
    .mega-category-list a{padding:5px 10px;background:var(--surface);border-radius:30px;font-size:12px}
    .mega-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;max-height:340px;overflow:auto}
    .mega-card{min-width:0;padding:11px;border:1px solid var(--line);border-radius:12px;transition:border-color .2s,background .2s}
    .mega-card:hover{border-color:#80c8c9;background:#f6fcfc}
    .mega-card img{width:100%;height:62px;object-fit:contain;object-position:left center;margin-bottom:7px}
    .video-mega .mega-card img,.product-mega .mega-card img{height:76px;object-fit:cover;border-radius:7px}
    .mega-card strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}
    .mega-card p{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;margin:4px 0;color:var(--muted);font-size:11px}
    .mega-meta{display:flex;gap:5px 10px;flex-wrap:wrap;margin-top:6px;color:var(--muted);font-size:11px}
    .mega-footer{display:block;margin-top:14px;padding-top:12px;border-top:1px solid var(--line);color:var(--primary);font-size:13px;font-weight:800}
    .header-btns{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:13px}
    .member-slot{color:var(--primary);font-weight:700}
    .open-account{padding:9px 13px;border-radius:9px;background:var(--primary);color:#fff;font-weight:700}
    .open-account:hover{background:#07596f}
    .hamburger{display:none;width:40px;height:40px;align-items:center;justify-content:center;flex-direction:column;gap:5px;border:1px solid var(--line);border-radius:9px;background:#fff}
    .hamburger span{width:19px;height:2px;background:var(--primary);transition:transform .2s,opacity .2s}
    .hamburger.active span:first-child{transform:translateY(7px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:last-child{transform:translateY(-7px) rotate(-45deg)}
    .drawer-overlay{position:fixed;inset:0;z-index:80;background:#081e35a6;opacity:0;visibility:hidden;transition:.25s}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;z-index:81;width:min(390px,90vw);overflow-y:auto;background:#fff;box-shadow:-15px 0 45px #091f3630;transform:translateX(105%);visibility:hidden;transition:transform .25s,visibility .25s}
    .mobile-drawer.open{transform:translateX(0);visibility:visible}
    .drawer-head{display:flex;align-items:center;gap:10px;padding:18px;border-bottom:1px solid var(--line)}
    .drawer-member{margin-right:auto;color:var(--primary)}
    .drawer-head>a{color:var(--primary);font-weight:800;font-size:13px}
    .drawer-close{border:0;background:var(--surface);border-radius:7px;width:35px;height:35px;color:var(--ink);font-size:25px;line-height:1}
    .drawer-menu{padding:12px 18px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 3px;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;font-weight:750;color:var(--ink)}
    .drawer-toggle::after{content:"＋";float:right;color:var(--primary)}
    .drawer-toggle.active::after{content:"－"}
    .drawer-submenu{display:none;padding:5px 0 10px 15px;background:#f7fafc}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px;font-size:13px;color:#425771}
    .drawer-submenu a:hover{color:var(--primary)}
    .footer{margin-top:80px;background:#0b243e;color:#d7e4ee}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:38px;padding:60px 0 45px}
    .footer .logo{color:#fff}
    .footer-brand p{max-width:370px;color:#b4c8d7;font-size:13px}
    .footer-social{margin-top:16px}
    .footer h3{margin:4px 0 17px;color:#fff;font-size:15px}
    .footer-links,.footer-contact{display:flex;flex-direction:column;gap:10px;font-size:13px}
    .footer a:hover{color:#80dbd5}
    .footer-bottom{display:flex;justify-content:space-between;gap:15px;padding:20px 0;border-top:1px solid #ffffff27;color:#b4c8d7;font-size:12px}
    .footer-legal{display:flex;flex-wrap:wrap;gap:18px}

    .ea-content-stack{background:linear-gradient(180deg,#edf8f8 0,#f5f9fc 330px,#fff 650px);padding:30px 0 0}
    .ea-content-stack .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:25px;color:#566c7e;font-size:13px}
    .ea-content-stack .breadcrumb a:hover{color:var(--primary)}
    .ea-content-stack .breadcrumb span:last-child{color:var(--primary)}
    .ea-content-stack .product-intro{padding:32px;border:1px solid #d5e8e9;border-radius:24px;background:#fff;box-shadow:0 15px 40px #103a5c0d}
    .ea-content-stack .eyebrow{display:inline-block;margin-bottom:12px;padding:5px 11px;border-radius:50px;background:#dff4f1;color:#075d68;font-size:12px;font-weight:800}
    .ea-content-stack h1{margin:0;font-size:clamp(30px,4vw,48px);line-height:1.2;letter-spacing:-.025em;overflow-wrap:anywhere}
    .ea-content-stack .lead{max-width:850px;margin:15px 0 22px;color:#40566e;font-size:16px;overflow-wrap:anywhere}
    .ea-content-stack .intro-meta{display:flex;flex-wrap:wrap;gap:10px}
    .ea-content-stack .intro-meta span{padding:7px 11px;background:var(--surface);border:1px solid var(--line);border-radius:8px;color:#425771;font-size:12px}
    .ea-content-stack .product-cover{display:flex;align-items:center;justify-content:center;min-height:250px;max-height:480px;margin:24px 0 0;padding:24px;border-radius:18px;background:radial-gradient(circle at 50% 20%,#d9f3ef,#e7f0fa 65%,#dce9f2);overflow:hidden}
    .ea-content-stack .product-cover img{max-height:400px;width:auto;max-width:100%;object-fit:contain;border-radius:10px}
    .ea-content-stack .detail-grid{display:grid;grid-template-columns:minmax(0,1fr) 275px;align-items:start;gap:26px;margin-top:30px}
    .ea-content-stack .detail-panel,.ea-content-stack .side-panel{min-width:0;padding:28px;border:1px solid var(--line);border-radius:18px;background:#fff}
    .ea-content-stack h2{margin:0 0 18px;font-size:23px}
    .ea-content-stack .product-body{min-width:0;max-width:100%;overflow-x:auto;overflow-wrap:anywhere;color:#35475d;line-height:1.85}
    .ea-content-stack .product-body img,.ea-content-stack .product-body video,.ea-content-stack .product-body iframe,.ea-content-stack .product-body table{max-width:100%}
    .ea-content-stack .product-body img{height:auto}
    .ea-content-stack .product-body table{display:block;overflow-x:auto;border-collapse:collapse}
    .ea-content-stack .product-body th,.ea-content-stack .product-body td{padding:9px;border:1px solid var(--line)}
    .ea-content-stack .product-body pre{max-width:100%;overflow-x:auto}
    .ea-content-stack .product-body a{color:var(--primary);text-decoration:underline}
    .ea-content-stack .side-panel h2{font-size:17px}
    .ea-content-stack .side-panel p,.ea-content-stack .risk-note{color:var(--muted);font-size:13px}
    .ea-content-stack .side-panel a,.ea-content-stack .section-cta{display:inline-block;margin-top:12px;padding:10px 15px;border-radius:9px;background:var(--primary);color:#fff;font-weight:750;font-size:13px}
    .ea-content-stack .risk-note{margin-top:20px;padding:17px 20px;border-left:3px solid var(--teal);background:#edf8f7}
    .ea-content-stack .related{margin-top:48px}
    .ea-content-stack .related-head{display:flex;justify-content:space-between;align-items:center;gap:16px}
    .ea-content-stack .related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
    .ea-content-stack .related-card{min-width:0;padding:15px;border:1px solid var(--line);border-radius:16px;background:#fff;transition:transform .2s,border-color .2s}
    .ea-content-stack .related-card:hover{transform:translateY(-3px);border-color:#80c8c9}
    .ea-content-stack .related-card img{width:100%;height:150px;object-fit:cover;border-radius:10px;background:var(--surface)}
    .ea-content-stack .related-card h3{margin:12px 0 6px;font-size:17px;overflow-wrap:anywhere}
    .ea-content-stack .related-card p{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;margin:0;color:var(--muted);font-size:13px}
    .ea-content-stack .related-card span{display:block;margin-top:10px;color:var(--primary);font-size:12px;font-weight:800}
    @media(max-width:1120px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-btns{margin-left:auto}
    }
    @media(max-width:760px){
      .topbar .container{align-items:flex-start;flex-direction:column;gap:2px;padding-block:7px}
      .topbar-contact{gap:5px 14px}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px}
      .ea-content-stack .detail-grid{grid-template-columns:1fr}
      .ea-content-stack .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media(max-width:520px){
      .container{width:min(100% - 28px,1200px)}
      .header-inner{min-height:66px}
      .header-btns .open-account{display:none}
      .logo{font-size:16px}
      .logo img{width:32px;height:32px}
      .ea-content-stack .product-intro,.ea-content-stack .detail-panel,.ea-content-stack .side-panel{padding:20px}
      .ea-content-stack .product-cover{min-height:190px;padding:14px}
      .ea-content-stack .related-grid,.footer-grid{grid-template-columns:1fr}
      .footer-grid{padding:42px 0}
      .footer-bottom{flex-direction:column}
    }