:root{
      --theme:#0B3D91;
      --theme-deep:#082b68;
      --ink:#172033;
      --muted:#64748b;
      --line:#dbe4f0;
      --soft:#f4f7fb;
      --white:#fff;
      --shadow:0 18px 45px rgba(15,39,78,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f8fafc;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","PingFang HK",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:0 auto}

    .topbar{background:#091a35;color:#d8e5fa;font-size:13px}
    .topbar-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-links{display:flex;gap:22px;flex-wrap:wrap}
    .topbar a{color:#e7effc;transition:color .2s ease}
    .topbar a:hover{color:#fff}

    .header{position:relative;z-index:30;background:rgba(255,255,255,.97);border-bottom:1px solid #e8eef6;box-shadow:0 4px 18px rgba(11,61,145,.05)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em;white-space:nowrap}
    .logo img{width:36px;height:36px;object-fit:contain;border-radius:9px}
    .logo span{font-size:18px}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:stretch;gap:4px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:6px;padding:26px 13px;color:#27364e;font-size:14px;font-weight:650;white-space:nowrap}
    .nav-link:hover,.nav-link:focus-visible{color:var(--theme)}
    .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:50%;transform:translateX(-50%) translateY(8px);width:300px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:0 0 16px 16px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.22s ease}
    .mega-menu{width:650px}
    .nav-item:after{content:"";position:absolute;left:0;right:0;top:100%;height:12px}
    .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;pointer-events:auto;transform:translateX(-50%) translateY(0)}
    .mega-title{margin:0 0 13px;color:var(--theme);font-weight:800;font-size:14px}
    .dropdown-list{display:grid;gap:8px}
    .dropdown-list a{display:block;padding:7px 9px;border-radius:8px;color:#3b4c65;font-size:13px}
    .dropdown-list a:hover{background:#eef4ff;color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}
    .mega-card{display:flex;align-items:center;gap:9px;min-width:0;padding:9px;border:1px solid #e5ebf4;border-radius:11px;background:#fbfdff}
    .mega-card:hover{border-color:#a9c1e8;background:#f3f7ff}
    .mega-card img{width:31px;height:31px;object-fit:contain;border-radius:7px;flex:0 0 auto}
    .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:12px;color:#1c2b42}
    .mega-card small{font-size:10px;color:var(--muted);line-height:1.5}
    .mega-footer{display:block;margin-top:16px;padding-top:12px;border-top:1px solid #edf1f7;color:var(--theme);font-size:13px;font-weight:700}

    .header-btns{display:flex;align-items:center;gap:13px}
    .member-link{color:var(--theme);font-size:13px;font-weight:700;white-space:nowrap}
    .open-account{padding:9px 16px;border-radius:9px;background:var(--theme);color:#fff;font-size:13px;font-weight:700;white-space:nowrap}
    .open-account:hover{background:var(--theme-deep)}
    .hamburger{display:none;width:42px;height:40px;padding:9px;border:1px solid var(--line);border-radius:9px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:22px;height:2px;margin:4px auto;background:var(--ink);transition:.2s}

    .drawer-overlay{display:none;position:fixed;inset:0;background:rgba(3,14,33,.48);z-index:80}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(380px,88vw);background:#fff;z-index:90;transform:translateX(105%);transition:transform .28s ease;overflow-y:auto;box-shadow:-15px 0 40px rgba(0,0,0,.18)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:12px;padding:19px 20px;border-bottom:1px solid var(--line);font-weight:800}
    .drawer-head>a{margin-left:auto;color:var(--theme);font-size:13px}
    .drawer-close{width:32px;height:32px;border:0;border-radius:8px;background:#eef3fa;color:#30425d;font-size:24px;line-height:1;cursor:pointer}
    .drawer-menu{padding:12px 20px 28px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 2px;border:0;border-bottom:1px solid #edf1f6;background:transparent;text-align:left;color:#26364e;font-weight:700;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:18px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:6px 0 8px 14px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:14px}

    .tools-page{padding:64px 0 88px}
    .tools-hero{text-align:center;max-width:760px;margin:0 auto 40px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 13px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--theme);border-radius:4px}
    .tools-hero h1{margin:0;font-size:clamp(32px,5vw,54px);line-height:1.15;letter-spacing:-.035em;color:#122544}
    .tools-hero p{margin:18px auto 0;color:var(--muted);font-size:16px;max-width:650px}
    .tools-filter{display:flex;justify-content:center;gap:9px;flex-wrap:wrap;margin-top:25px}
    .filter-chip{padding:8px 15px;border:1px solid #cbd8e9;border-radius:999px;background:#fff;color:#49617e;font-size:13px}
    .filter-chip.active,.filter-chip:hover{border-color:var(--theme);background:#edf4ff;color:var(--theme)}
    .tools-list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .tool-card{display:flex;flex-direction:column;min-height:245px;padding:24px;border:1px solid #e1e9f3;border-radius:var(--radius);background:#fff;box-shadow:0 8px 26px rgba(19,52,96,.05);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
    .tool-card:hover{transform:translateY(-5px);border-color:#a7c0e6;box-shadow:var(--shadow)}
    .tool-icon{display:flex;align-items:center;justify-content:center;width:58px;height:58px;margin-bottom:17px;border-radius:15px;background:#edf4ff;color:var(--theme);overflow:hidden}
    .tool-icon img{width:38px;height:38px;object-fit:contain}
    .tool-card h2{margin:0 0 8px;font-size:19px;color:#172b4b}
    .tool-card p{display:-webkit-box;overflow:hidden;margin:0;color:var(--muted);font-size:14px;line-height:1.75;-webkit-box-orient:vertical;-webkit-line-clamp:3}
    .tool-card-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:20px}
    .tool-meta{color:#8a9ab0;font-size:12px}
    .tool-link{color:var(--theme);font-size:13px;font-weight:800}
    .tool-link:after{content:" →"}
    .tools-note{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:42px;padding:25px 29px;border-radius:18px;background:linear-gradient(120deg,#0b3d91,#174f9f);color:#fff}
    .tools-note h2{margin:0 0 5px;font-size:20px}
    .tools-note p{margin:0;color:#dbe9ff;font-size:14px}
    .tools-note a{flex:0 0 auto;padding:11px 18px;border-radius:9px;background:#fff;color:var(--theme);font-size:13px;font-weight:800}

    .footer{padding:58px 0 20px;background:#0b1930;color:#b9c8dc}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px}
    .footer .logo{color:#fff}
    .footer .logo img{background:#fff}
    .footer-brand p{max-width:290px;margin:17px 0 0;color:#91a5c0;font-size:13px}
    .footer h3{margin:2px 0 14px;color:#fff;font-size:14px}
    .footer-links{list-style:none;margin:0;padding:0}
    .footer-links li{margin:7px 0;font-size:13px}
    .footer-links a:hover{color:#fff}
    .footer-col p{margin:7px 0;font-size:13px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:17px;border-top:1px solid rgba(255,255,255,.12);color:#8194af;font-size:12px}

    @media (max-width:980px){
      .main-nav{display:none}
      .hamburger{display:block}
      .tools-list{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:620px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{align-items:flex-start;flex-direction:column;gap:2px;padding:8px 0}
      .topbar-links{gap:10px}
      .header-inner{min-height:68px;gap:12px}
      .member-link{display:none}
      .open-account{padding:8px 11px}
      .tools-page{padding:45px 0 65px}
      .tools-hero{margin-bottom:30px}
      .tools-hero h1{font-size:36px}
      .tools-hero p{font-size:14px}
      .tools-list{grid-template-columns:1fr;gap:15px}
      .tool-card{min-height:220px;padding:20px}
      .tools-note{align-items:flex-start;flex-direction:column;padding:22px}
      .tools-note a{width:100%;text-align:center}
      .footer-grid{grid-template-columns:1fr;gap:26px}
      .footer-bottom{align-items:flex-start;flex-direction:column;gap:8px}
    }