:root{--brand:#0B3D91;--ink:#14243b;--muted:#62738a;--line:#e3eaf3;--surface:#f4f7fc;--white:#fff;--night:#081a36}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--surface);font-family:system-ui,-apple-system,"Noto Sans TC","Microsoft JhengHei",sans-serif;line-height:1.65}
    a{color:inherit;text-decoration:none}
    button{font:inherit;cursor:pointer}
    img{max-width:100%;height:auto}
    .container{width:min(1200px,calc(100% - 40px));margin-inline:auto}
    .topbar{background:var(--night);color:#cfdbed;font-size:12px}
    .topbar-inner,.topbar-links,.header-inner,.header-btns{display:flex;align-items:center}
    .topbar-inner{min-height:38px;justify-content:space-between;gap:16px}
    .topbar-links{gap:24px;flex-wrap:wrap}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:40;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:76px;gap:28px}
    .logo{display:inline-flex;align-items:center;gap:10px;min-width:0;font-weight:800;color:var(--brand);white-space:nowrap}
    .logo img{width:36px;height:36px;object-fit:contain}
    .main-nav{margin-left:auto;align-self:stretch}
    .nav-list{display:flex;align-items:stretch;gap:3px;height:100%;margin:0;padding:0;list-style:none}
    .nav-item{position:relative;display:flex;align-items:center}
    .nav-link{display:inline-flex;align-items:center;gap:5px;padding:14px 10px;color:#243751;font-size:14px;font-weight:650;white-space:nowrap}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--brand)}
    .has-arrow:after{content:"";width:5px;height:5px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .dropdown-panel,.mega-menu{display:none;position:absolute;top:100%;left:0;z-index:50;background:#fff;border:1px solid var(--line);border-radius:0 0 18px 18px;box-shadow:0 22px 45px #0b234126;padding:22px}
    .dropdown-panel{width:320px}
    .mega-menu{width:min(760px,calc(100vw - 40px))}
    .nav-item:nth-last-child(-n+3) .mega-menu{left:auto;right:0}
    .nav-item:hover>.dropdown-panel,.nav-item:hover>.mega-menu,.nav-item:focus-within>.dropdown-panel,.nav-item:focus-within>.mega-menu{display:block}
    .panel-title{margin:0 0 14px;color:var(--brand);font-weight:800}
    .panel-list{display:flex;flex-wrap:wrap;gap:8px}
    .panel-list a{padding:8px 11px;border-radius:8px;background:var(--surface);font-size:13px}
    .panel-list a:hover{background:#e5efff;color:var(--brand)}
    .dropdown-panel .panel-list{display:grid}
    .mega-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
    .mega-card{display:flex;align-items:center;gap:12px;min-width:0;padding:11px;border:1px solid var(--line);border-radius:12px}
    .mega-card:hover{border-color:#a6bfee;background:#f7faff}
    .mega-card img{width:48px;height:48px;flex:none;object-fit:cover;border-radius:9px;background:#eef3fa}
    .mega-card span{min-width:0}
    .mega-card strong,.mega-card small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .mega-card strong{font-size:13px}
    .mega-card small{color:var(--muted);font-size:11px}
    .mega-footer{display:block;margin-top:15px;padding-top:13px;border-top:1px solid var(--line);color:var(--brand);font-size:13px;font-weight:750}
    .header-btns{gap:12px;white-space:nowrap}
    .member-btn{padding:9px 16px;border-radius:9px;background:var(--brand);color:#fff;font-size:13px;font-weight:750}
    .member-btn:hover{background:#072e71}
    .hamburger{display:none;width:38px;height:38px;align-items:center;justify-content:center;flex-direction:column;gap:5px;border:1px solid var(--line);border-radius:9px;background:#fff}
    .hamburger span{width:18px;height:2px;background:var(--ink);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:90;background:#06152db3;visibility:hidden;opacity:0;transition:opacity .25s,visibility .25s}
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{position:fixed;inset:0 0 0 auto;z-index:91;width:min(390px,90vw);overflow-y:auto;background:#fff;transform:translateX(105%);transition:transform .25s;box-shadow:-20px 0 45px #06152d29}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:72px;padding:16px 20px;border-bottom:1px solid var(--line)}
    .drawer-head>a{color:var(--brand);font-weight:750}
    .drawer-close{border:0;background:transparent;color:var(--ink);font-size:30px;line-height:1}
    .drawer-menu{padding:14px 20px 32px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 2px;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;font-size:15px;font-weight:700}
    .drawer-toggle:after{content:"＋";float:right;color:var(--brand)}
    .drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:8px 0 12px 14px}
    .drawer-submenu.open{display:grid;gap:3px}
    .drawer-submenu a{display:block;padding:9px 5px;color:var(--muted);font-size:13px}
    .drawer-submenu a:hover{color:var(--brand)}
    .footer{margin-top:80px;background:#081a36;color:#d3deef}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:40px;padding:60px 0 46px}
    .footer .logo{color:#fff}
    .footer-brand p{max-width:330px;margin:18px 0 0;color:#aabbd3;font-size:13px}
    .footer h3{margin:4px 0 17px;color:#fff;font-size:15px}
    .footer-links{display:grid;gap:11px;font-size:13px}
    .footer-links a:hover{color:#7eb8ff}
    .footer-bottom{display:flex;justify-content:space-between;gap:16px;padding:22px 0;border-top:1px solid #ffffff20;color:#9eb0c9;font-size:12px}

    .tool-detail-page .detail-intro{padding:56px 0 48px;background:radial-gradient(circle at 84% 18%,#2565c985,transparent 32%),linear-gradient(125deg,#071832,#0B3D91 70%,#062754);color:#fff}
    .tool-detail-page .breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-bottom:32px;color:#c0d5f3;font-size:13px}
    .tool-detail-page .breadcrumbs a:hover{text-decoration:underline}
    .tool-detail-page .tool-heading{display:flex;align-items:center;gap:22px}
    .tool-detail-page .tool-icon{display:grid;place-items:center;width:84px;height:84px;flex:none;border:1px solid #ffffff50;border-radius:20px;background:#ffffff19}
    .tool-detail-page .tool-icon img{width:56px;height:56px;object-fit:contain}
    .tool-detail-page .eyebrow{margin:0 0 7px;color:#9ed5ff;font-size:12px;font-weight:800;letter-spacing:.12em}
    .tool-detail-page h1{margin:0;font-size:clamp(30px,4vw,48px);line-height:1.2}
    .tool-detail-page .lead{max-width:780px;margin:23px 0 0;color:#e1ecfc;font-size:17px}
    .tool-detail-page .detail-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
    .tool-detail-page .detail-meta span{padding:7px 12px;border:1px solid #ffffff36;border-radius:100px;background:#ffffff12;color:#e5efff;font-size:12px}
    .tool-detail-page .detail-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:27px;align-items:start;margin-top:38px}
    .tool-detail-page .detail-article,.tool-detail-page .side-panel{min-width:0;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 12px 35px #1532520b}
    .tool-detail-page .detail-article{padding:clamp(22px,4vw,42px)}
    .tool-detail-page .section-kicker{display:inline-block;margin-bottom:8px;color:var(--brand);font-size:12px;font-weight:800;letter-spacing:.1em}
    .tool-detail-page h2{margin:0 0 18px;font-size:25px}
    .tool-detail-page .tool-body{min-width:0;max-width:100%;overflow-x:auto;color:#344761;overflow-wrap:anywhere}
    .tool-detail-page .tool-body img,.tool-detail-page .tool-body video,.tool-detail-page .tool-body iframe,.tool-detail-page .tool-body table{max-width:100%}
    .tool-detail-page .tool-body img{height:auto;border-radius:10px}
    .tool-detail-page .tool-body table{border-collapse:collapse}
    .tool-detail-page .tool-body th,.tool-detail-page .tool-body td{padding:10px;border:1px solid var(--line)}
    .tool-detail-page .tool-body a{color:var(--brand);text-decoration:underline}
    .tool-detail-page .safety-note{margin-top:32px;padding:18px 20px;border-left:3px solid #44b8ed;border-radius:0 10px 10px 0;background:#eff7ff;color:#3c5676;font-size:13px}
    .tool-detail-page .side-panel{padding:24px}
    .tool-detail-page .side-panel h2{font-size:19px}
    .tool-detail-page .side-desc{margin:-6px 0 19px;color:var(--muted);font-size:13px}
    .tool-detail-page .related-list{display:grid;gap:11px}
    .tool-detail-page .related-tool{display:flex;gap:11px;align-items:flex-start;padding:12px;border:1px solid var(--line);border-radius:11px;transition:border-color .2s,background .2s}
    .tool-detail-page .related-tool:hover{border-color:#95b6e7;background:#f6faff}
    .tool-detail-page .related-tool img{width:38px;height:38px;flex:none;object-fit:contain;border-radius:7px;background:#eef3fa}
    .tool-detail-page .related-tool span{min-width:0}
    .tool-detail-page .related-tool strong{display:block;font-size:13px}
    .tool-detail-page .related-tool small{display:-webkit-box;overflow:hidden;color:var(--muted);font-size:11px;-webkit-box-orient:vertical;-webkit-line-clamp:2}
    .tool-detail-page .side-link{display:block;margin-top:20px;padding:11px 14px;border-radius:9px;background:var(--brand);color:#fff;text-align:center;font-size:13px;font-weight:750}
    .tool-detail-page .side-link:hover{background:#072e71}
    @media(max-width:1100px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-btns{margin-left:auto}
    }
    @media(max-width:760px){
      .container{width:min(100% - 32px,1200px)}
      .topbar-inner{align-items:flex-start;flex-direction:column;justify-content:center;padding:8px 0;gap:2px}
      .topbar-links{gap:6px 16px}
      .header-inner{min-height:66px}
      .header-btns .member-btn{display:none}
      .tool-detail-page .detail-intro{padding:38px 0}
      .tool-detail-page .tool-heading{gap:14px}
      .tool-detail-page .tool-icon{width:64px;height:64px;border-radius:15px}
      .tool-detail-page .tool-icon img{width:42px;height:42px}
      .tool-detail-page .lead{font-size:15px}
      .tool-detail-page .detail-grid{grid-template-columns:1fr;margin-top:22px}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;padding:42px 0}
      .footer-bottom{flex-direction:column}
    }
    @media(max-width:480px){
      .footer-grid{grid-template-columns:1fr}
      .tool-detail-page .tool-heading{align-items:flex-start}
    }