:root{
      --theme:#0B3D91;
      --ink:#14233b;
      --muted:#65748b;
      --line:#dfe6ef;
      --paper:#f5f8fc;
      --white:#fff;
      --accent:#18a478;
      --shadow:0 18px 45px rgba(16,37,68,.10);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--paper);font-family:Arial,"Noto Sans TC","PingFang HK","Microsoft JhengHei",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:#101d31;color:#cad5e5;font-size:13px}
    .topbar-inner{display:flex;justify-content:space-between;align-items:center;min-height:38px}
    .topbar-contact{display:flex;gap:22px}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);white-space:nowrap}
    .logo img{width:35px;height:35px;object-fit:contain}
    .logo span{font-size:18px}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:center;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;font-size:14px;font-weight:700;color:#34445b}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg);margin-top:-4px}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%);width:330px;padding:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:0 0 14px 14px;opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease}
    .mega-menu-wide{width:min(850px,calc(100vw - 40px))}
    .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}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;top:-12px;left:0;right:0;height:12px}
    .dropdown-title,.mega-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:15px}
    .dropdown-title span,.mega-head strong{font-size:16px}
    .dropdown-title a{font-size:12px;color:var(--theme)}
    .dropdown-article{display:grid;grid-template-columns:58px 1fr;gap:10px;align-items:center;padding:9px 0;border-top:1px solid var(--line);font-size:13px}
    .dropdown-article img{width:58px;height:42px;object-fit:cover;border-radius:7px}
    .mega-head{display:block}
    .mega-head span{display:block;color:var(--muted);font-size:12px;margin-top:3px}
    .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:10px;background:#fbfcfe;transition:.2s}
    .mega-card:hover{border-color:var(--theme);transform:translateY(-2px)}
    .mega-card-top{display:flex;align-items:center;gap:8px}
    .mega-card-top img{width:28px;height:28px;object-fit:contain;border-radius:5px}
    .mega-card strong{font-size:12px;line-height:1.4}
    .mega-card p{font-size:11px;color:var(--muted);margin:8px 0 0;line-height:1.5}
    .broker-rating,.mega-duration{display:block;color:var(--accent);font-size:10px;margin-top:2px}
    .mega-stats{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px;color:var(--muted);font-size:10px}
    .mega-video>img,.mega-product>img{width:100%;height:70px;object-fit:cover;border-radius:7px;margin-bottom:8px}
    .mega-categories{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:15px}
    .mega-categories a{font-size:11px;padding:4px 9px;border-radius:20px;background:#eef3fa;color:var(--theme)}
    .mega-footer{display:block;text-align:center;border-top:1px solid var(--line);padding-top:14px;margin-top:16px;color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px}
    .account-entry{font-size:13px;color:var(--theme);font-weight:700}
    .open-account{background:var(--theme);color:#fff;border-radius:7px;padding:9px 15px;font-size:13px;font-weight:700}
    .hamburger{display:none;border:0;background:transparent;padding:8px;cursor:pointer}
    .hamburger span{display:block;width:23px;height:2px;margin:5px 0;background:var(--ink);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{position:fixed;inset:0;background:rgba(5,15,30,.52);opacity:0;visibility:hidden;z-index:40;transition:.2s}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(390px,92vw);height:100vh;background:#fff;z-index:41;transform:translateX(100%);transition:.25s;overflow:auto;box-shadow:-15px 0 40px rgba(0,0,0,.16)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:15px;padding:20px;border-bottom:1px solid var(--line);font-weight:700}
    .drawer-head>a{margin-left:auto;color:var(--theme);font-size:13px}
    .drawer-close{border:0;background:transparent;font-size:28px;line-height:1;color:var(--muted);cursor:pointer}
    .drawer-menu{padding:10px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;color:var(--ink);font-weight:700;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px;font-weight:400}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 15px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:13px}
    .footer{background:#101d31;color:#cbd6e5}
    .footer-main{padding:58px 0 45px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
    .footer .logo{color:#fff;margin-bottom:16px}
    .footer .logo img{filter:brightness(0) invert(1)}
    .footer-brand p{max-width:360px;color:#9eacc0;font-size:13px;margin:0 0 20px}
    .footer-contact{display:grid;gap:5px;font-size:13px}
    .footer-social{margin-top:15px;color:#8fb5e9}
    .footer h3{margin:3px 0 16px;color:#fff;font-size:15px}
    .footer-links{display:grid;gap:8px;font-size:13px;color:#aab8ca}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:17px 0;font-size:12px;color:#8f9caf}
    .footer-bottom-inner{display:flex;justify-content:space-between;gap:20px}
    .download-page-main{padding-bottom:90px}
    .download-hero{padding:76px 0 62px;text-align:center;background:linear-gradient(135deg,#eef4fc,#f8fbff)}
    .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:26px;height:2px;background:var(--theme)}
    .download-hero h1{max-width:760px;margin:14px auto 15px;font-size:clamp(32px,5vw,58px);line-height:1.13;letter-spacing:-.04em}
    .download-hero p{max-width:650px;margin:0 auto;color:var(--muted);font-size:17px}
    .download-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:28px}
    .primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;border-radius:8px;padding:12px 22px;font-weight:700;font-size:14px}
    .primary-button{background:var(--theme);color:#fff}
    .secondary-button{border:1px solid #b9c8da;color:var(--theme);background:#fff}
    .download-wrap{width:min(1080px,calc(100% - 40px));margin:-20px auto 0;position:relative}
    .download-panel{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:28px}
    .platform-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .platform-card{border:1px solid var(--line);border-radius:12px;padding:22px;text-align:center;background:#fff}
    .platform-icon{width:48px;height:48px;margin:0 auto 12px;display:grid;place-items:center;border-radius:12px;background:#eaf1fc;color:var(--theme);font-size:22px;font-weight:800}
    .platform-card h2{font-size:17px;margin:0 0 5px}
    .platform-card p{color:var(--muted);font-size:13px;margin:0 0 15px}
    .platform-card a{display:inline-block;padding:8px 15px;border-radius:6px;background:var(--theme);color:#fff;font-size:12px;font-weight:700}
    .section-block{width:min(1080px,calc(100% - 40px));margin:72px auto 0}
    .section-heading{text-align:center;margin-bottom:28px}
    .section-heading h2{font-size:30px;line-height:1.25;margin:8px 0}
    .section-heading p{margin:0;color:var(--muted)}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .step{position:relative;padding:25px;border-radius:14px;background:#fff;border:1px solid var(--line)}
    .step-number{display:grid;place-items:center;width:35px;height:35px;border-radius:50%;background:var(--theme);color:#fff;font-size:14px;font-weight:800;margin-bottom:15px}
    .step h3{margin:0 0 7px;font-size:18px}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .feature-card{padding:23px;background:#fff;border:1px solid var(--line);border-radius:14px}
    .feature-card strong{display:block;margin-bottom:7px;font-size:16px}
    .feature-card p{margin:0;color:var(--muted);font-size:13px}
    .faq-list{max-width:800px;margin:0 auto}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px 20px;margin-bottom:10px}
    .faq-item h3{font-size:15px;margin:0 0 6px}
    .faq-item p{font-size:13px;color:var(--muted);margin:0}
    .download-note{text-align:center;margin-top:45px;padding:25px;border-radius:14px;background:#eaf1fc;color:#314c72;font-size:13px}
    @media(max-width:1120px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
      .mega-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:760px){
      .container,.download-wrap,.section-block{width:min(100% - 28px,1080px)}
      .topbar-inner{padding:7px 0;display:block;text-align:center}
      .topbar-contact{justify-content:center;margin-top:3px;gap:12px}
      .header-inner{min-height:68px;gap:12px}
      .account-entry{display:none}
      .open-account{padding:8px 11px;font-size:12px}
      .footer-grid,.platform-row,.steps,.feature-grid{grid-template-columns:1fr}
      .footer-grid{gap:28px}
      .footer-bottom-inner{display:block}
      .footer-bottom-inner span{display:block;margin:4px 0}
      .download-hero{padding:58px 0 52px}
      .download-hero p{font-size:15px}
      .download-panel{padding:17px}
      .section-block{margin-top:55px}
      .section-heading h2{font-size:25px}
      .mega-menu-wide{left:auto;right:-20px;transform:none}
    }