:root{
      --theme:#0B3D91;
      --ink:#10213f;
      --muted:#66748d;
      --line:#dce5f1;
      --soft:#f4f7fb;
      --white:#fff;
      --shadow:0 18px 45px rgba(15,43,83,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f7f9fc;font-family:-apple-system,BlinkMacSystemFont,"Noto Sans TC","Microsoft JhengHei",Arial,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:#071d45;color:#dce8ff;font-size:13px}
    .topbar .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-links{display:flex;gap:20px}
    .topbar a:hover{color:#fff}
    .header{position:relative;background:#fff;border-bottom:1px solid var(--line);z-index:20}
    .header-inner{height:78px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:10px;color:var(--theme);font-size:20px;font-weight:800;white-space:nowrap}
    .logo img{width:36px;height:36px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:center;justify-content:center;gap:4px;padding:0;margin:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:block;padding:27px 14px;color:#263956;font-size:15px;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"";display:inline-block;width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg);margin:0 0 3px 8px}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%);width:310px;padding:22px;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}
    .mega-menu{width:650px}
    .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}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-18px;height:18px}
    .panel-title{margin:0 0 14px;color:var(--theme);font-size:14px;font-weight:800}
    .panel-list{display:grid;gap:7px}
    .panel-list a{padding:7px 0;border-bottom:1px solid #edf1f6;font-size:14px}
    .panel-list a:hover,.mega-card:hover strong{color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{display:block;padding:12px;border:1px solid var(--line);border-radius:12px;background:#fbfcfe}
    .mega-card img{width:32px;height:32px;object-fit:contain;margin-bottom:7px}
    .mega-card strong,.mega-card small{display:block}
    .mega-card strong{font-size:13px}
    .mega-card small{font-size:11px;color:var(--muted);line-height:1.5;margin-top:3px}
    .mega-footer{display:block;margin-top:16px;padding-top:12px;border-top:1px solid var(--line);color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:9px;white-space:nowrap}
    .member-btn,.open-btn{padding:8px 13px;border-radius:8px;font-size:13px}
    .member-btn{color:var(--theme);border:1px solid #b9cbe7}
    .open-btn{background:var(--theme);color:#fff}
    .hamburger{display:none;width:42px;height:40px;border:1px solid var(--line);background:#fff;border-radius:8px;padding:9px}
    .hamburger span{display:block;height:2px;background:var(--theme);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(4,18,42,.55);z-index:50}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(380px,88vw);height:100vh;background:#fff;z-index:60;transform:translateX(100%);transition:.3s;overflow:auto}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{height:70px;padding:0 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:15px;color:var(--theme);font-weight:800}
    .drawer-head>a{margin-left:auto;background:var(--theme);color:#fff;padding:5px 10px;border-radius:6px;font-size:13px}
    .drawer-close{border:0;background:none;font-size:28px;color:#65738a;cursor:pointer}
    .drawer-menu{padding:10px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 4px;border:0;border-bottom:1px solid #edf1f6;background:none;text-align:left;color:var(--ink);font-weight:700;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme)}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 14px;background:#f7f9fc}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;font-size:14px;color:var(--muted)}
    .footer{margin-top:70px;background:#071d45;color:#dbe6f8}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding:52px 0 42px}
    .footer-brand strong{font-size:21px;color:#fff}
    .footer p{color:#adbeda;font-size:13px;margin:12px 0}
    .footer h3{font-size:15px;color:#fff;margin:0 0 15px}
    .footer-grid>div:not(.footer-brand) a{display:block;color:#b8c8e1;font-size:13px;margin:7px 0}
    .footer-grid a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.14);padding:18px 0;color:#9fb1cc;font-size:12px}
    .tools-page{padding:64px 0 15px}
    .tools-hero{text-align:center;max-width:760px;margin:0 auto 42px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--theme)}
    .tools-hero h1{margin:13px 0 12px;font-size:clamp(32px,5vw,54px);line-height:1.2;letter-spacing:-.03em}
    .tools-hero p{margin:0;color:var(--muted);font-size:16px}
    .tools-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:22px}
    .tools-toolbar h2{margin:0;font-size:22px}
    .tools-search{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 13px;min-width:270px}
    .tools-search input{width:100%;border:0;outline:0;color:var(--ink);background:transparent}
    .tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .tool-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:23px;min-height:250px;box-shadow:0 8px 25px rgba(20,49,89,.04);transition:.2s}
    .tool-card:hover{transform:translateY(-4px);border-color:#a8bfdf;box-shadow:var(--shadow)}
    .tool-icon{width:54px;height:54px;border-radius:14px;background:#eaf1fc;display:flex;align-items:center;justify-content:center;margin-bottom:17px}
    .tool-icon img{width:34px;height:34px;object-fit:contain}
    .tool-card h3{margin:0 0 8px;font-size:19px}
    .tool-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.8}
    .tool-card .tool-link{margin-top:auto;padding-top:18px;color:var(--theme);font-size:14px;font-weight:800}
    .tool-card .tool-link:after{content:"→";margin-left:8px}
    .tools-note{margin-top:30px;padding:18px 22px;border-left:4px solid var(--theme);background:#eaf1fc;color:#41536d;border-radius:8px;font-size:14px}
    @media(max-width:1050px){
      .header-inner{gap:15px}.nav-link{padding-left:8px;padding-right:8px}.mega-menu{width:580px}
    }
    @media(max-width:820px){
      .topbar .container{padding:7px 0;align-items:flex-start}.topbar .container,.topbar-links{flex-direction:column;gap:2px}
      .header-inner{height:68px}.main-nav{display:none}.hamburger{display:block}.member-btn{display:none}
      .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}.footer-bottom{flex-direction:column;gap:5px}
      .tools-page{padding-top:45px}.tools-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:560px){
      .container{width:min(100% - 28px,1180px)}
      .open-btn{display:none}.tools-hero h1{font-size:34px}.tools-toolbar{display:block}.tools-toolbar h2{margin-bottom:14px}
      .tools-search{min-width:0;width:100%}.tools-grid{grid-template-columns:1fr}.tool-card{min-height:220px}
      .footer-grid{grid-template-columns:1fr}.footer{margin-top:45px}
    }