:root{
      --theme:#0B3D91;
      --ink:#172033;
      --muted:#64748b;
      --line:#dbe3ef;
      --paper:#f5f8fc;
      --white:#fff;
      --shadow:0 16px 45px rgba(15,35,70,.10);
      --radius:16px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans TC","Microsoft JhengHei",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{background:#10213f;color:#dce8fb;font-size:13px}
    .topbar .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px}
    .topbar-links{display:flex;gap:20px}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:30;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:76px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;min-width:max-content;font-weight:800;font-size:19px;color:var(--theme)}
    .logo img{width:38px;height:38px;object-fit:contain}
    .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:5px;padding:25px 13px;font-size:15px;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"⌄";font-size:12px;color:#8190a7}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% + 1px);left:50%;transform:translate(-50%,8px);width:260px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:0 0 14px 14px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.2s;z-index:50}
    .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;transform:translate(-50%,0)}
    .dropdown-panel a:not(.mega-footer){display:block;padding:8px 10px;border-radius:8px;font-size:14px}
    .dropdown-panel a:hover:not(.mega-footer),.mega-card:hover{background:#eef4ff;color:var(--theme)}
    .mega-heading{display:flex;justify-content:space-between;padding:4px 8px 12px;color:var(--muted);font-size:13px}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;max-height:360px;overflow:auto}
    .mega-card{display:flex;flex-direction:column;gap:3px;padding:11px;border:1px solid #e6ebf3;border-radius:10px;transition:.2s}
    .mega-card strong{font-size:14px}
    .mega-card small{font-size:12px;color:var(--muted);line-height:1.5}
    .mega-card img{width:28px;height:28px;object-fit:contain;margin-bottom:3px}
    .mega-footer{display:block;margin-top:12px;padding-top:10px;border-top:1px solid var(--line);color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px;min-width:max-content}
    .member-link{color:var(--theme);font-weight:700;font-size:14px}
    .account-link{padding:8px 15px;background:var(--theme);color:#fff;border-radius:8px;font-size:14px}
    .hamburger{display:none;width:40px;height:40px;padding:8px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:21px;height:2px;margin:4px auto;background:var(--ink);transition:.2s}
    .hamburger.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
    .drawer-overlay{position:fixed;inset:0;background:rgba(7,18,38,.45);opacity:0;visibility:hidden;transition:.25s;z-index:80}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(370px,90vw);height:100vh;background:#fff;transform:translateX(105%);transition:.25s;z-index:90;overflow:auto;box-shadow:-12px 0 40px rgba(0,0,0,.18)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:13px;padding:18px 20px;border-bottom:1px solid var(--line);font-weight:700;color:var(--theme)}
    .drawer-head span{margin-right:auto}
    .drawer-head a{font-size:14px;color:var(--theme)}
    .drawer-close{border:0;background:none;font-size:28px;line-height:1;cursor:pointer;color:var(--muted)}
    .drawer-menu{padding:12px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf1f6;background:none;text-align:left;color:var(--ink);font-weight:600;cursor:pointer}
    .drawer-toggle:after{content:"＋";float:right;color:var(--muted)}
    .drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:4px 0 8px 15px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}
    .footer{margin-top:80px;background:#101d35;color:#d6e0f0;padding:56px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}
    .footer h2,.footer h3{margin:0 0 15px;color:#fff}
    .footer h2{font-size:21px}
    .footer h3{font-size:15px}
    .footer p{margin:0;color:#aebdd2;font-size:14px}
    .footer-links{list-style:none;padding:0;margin:0}
    .footer-links li{margin:6px 0;color:#aebdd2;font-size:14px}
    .footer-links a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:15px;border-top:1px solid rgba(255,255,255,.14);margin-top:38px;padding-top:18px;color:#92a4bd;font-size:13px}
    .download-page-main{padding:72px 0 5px}
    .download-hero{text-align:center;max-width:820px;margin:0 auto 45px}
    .eyebrow{display:inline-flex;padding:5px 13px;border-radius:999px;background:#e5efff;color:var(--theme);font-size:13px;font-weight:700}
    .download-hero h1{margin:17px 0 12px;font-size:clamp(32px,5vw,58px);line-height:1.15;letter-spacing:.02em}
    .download-hero p{margin:0 auto;color:var(--muted);font-size:17px;max-width:680px}
    .download-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:25px}
    .button{display:inline-flex;align-items:center;justify-content:center;padding:12px 22px;border-radius:9px;border:1px solid var(--theme);background:var(--theme);color:#fff;font-weight:700}
    .button.secondary{background:#fff;color:var(--theme)}
    .download-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:32px}
    .download-panel h2{margin:0 0 8px;font-size:25px}
    .download-panel-intro{margin:0 0 25px;color:var(--muted)}
    .download-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .step-card{padding:22px;border:1px solid #e4eaf3;border-radius:13px;background:#fbfdff}
    .step-number{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--theme);color:#fff;font-weight:800}
    .step-card h3{margin:15px 0 6px;font-size:18px}
    .step-card p{margin:0;color:var(--muted);font-size:14px}
    .download-note{display:flex;gap:13px;align-items:flex-start;margin-top:22px;padding:15px 18px;background:#f1f6ff;border-radius:10px;color:#345071;font-size:14px}
    .download-note strong{color:var(--theme)}
    .download-faq{margin-top:42px}
    .download-faq h2{text-align:center;margin:0 0 22px}
    .faq-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .faq-item{padding:20px;background:#fff;border:1px solid var(--line);border-radius:12px}
    .faq-item h3{margin:0 0 7px;font-size:16px}
    .faq-item p{margin:0;color:var(--muted);font-size:14px}
    @media (max-width:980px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
      .mega-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:700px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{align-items:flex-start;flex-direction:column;padding:8px 0;gap:2px}
      .topbar-links{gap:12px;flex-wrap:wrap}
      .member-link{display:none}
      .download-page-main{padding-top:45px}
      .download-panel{padding:21px}
      .download-steps,.faq-list{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr;gap:25px}
      .footer-bottom{flex-direction:column}
    }