:root{
      --brand:#0B3D91;
      --template-theme:{主题色};
      --brand-dark:#06275f;
      --brand-soft:#eaf1ff;
      --gold:#d9ad50;
      --red:#b51f32;
      --ink:#111827;
      --muted:#5f6b7a;
      --line:#dce3ec;
      --surface:#ffffff;
      --soft:#f4f7fb;
      --footer:#07152c;
      --shadow:0 18px 45px rgba(7,21,44,.12);
      --radius:18px;
    }

    *{box-sizing:border-box}
    html{scroll-behaviour:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--soft);
      font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      line-height:1.6;
    }
    body,
    button,
    input{font:inherit}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button{color:inherit}
    .container{
      width:min(1180px,calc(100% - 40px));
      margin-inline:auto;
    }

    .topbar{
      position:relative;
      z-index:60;
      color:#dfe9fb;
      background:#06152f;
      border-bottom:1px solid rgba(255,255,255,.09);
      font-size:13px;
    }
    .topbar .container{
      min-height:38px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .topbar-links{
      display:flex;
      align-items:center;
      gap:18px;
    }
    .topbar a:hover{color:#fff}

    .header{
      position:sticky;
      top:0;
      z-index:50;
      color:var(--ink);
      background:rgba(255,255,255,.97);
      border-bottom:1px solid var(--line);
      box-shadow:0 8px 25px rgba(7,21,44,.06);
      backdrop-filter:blur(14px);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:26px;
    }
    .logo{
      min-width:190px;
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--brand-dark);
      font-size:18px;
      font-weight:850;
      letter-spacing:-.02em;
    }
    .logo img{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:10px;
    }
    .main-nav{
      flex:1;
      align-self:stretch;
    }
    .nav-list{
      height:100%;
      display:flex;
      align-items:stretch;
      justify-content:center;
      gap:2px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .nav-item{
      position:relative;
      display:flex;
      align-items:center;
    }
    .nav-link{
      height:100%;
      display:flex;
      align-items:center;
      padding:0 12px;
      color:#263347;
      font-size:14px;
      font-weight:750;
      white-space:nowrap;
      transition:.2s ease;
    }
    .nav-link:hover,
    .nav-item:focus-within>.nav-link{
      color:var(--brand);
      background:var(--brand-soft);
    }
    .has-arrow::after{
      width:6px;
      height:6px;
      margin-left:7px;
      border-right:2px solid currentColor;
      border-bottom:2px solid currentColor;
      content:"";
      transform:rotate(45deg) translateY(-2px);
    }
    .dropdown-panel,
    .mega-menu{
      position:absolute;
      top:100%;
      left:0;
      z-index:70;
      visibility:hidden;
      opacity:0;
      padding:20px;
      color:var(--ink);
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 16px 16px;
      box-shadow:var(--shadow);
      transform:translateY(8px);
      transition:.18s ease;
      pointer-events:none;
    }
    .dropdown-panel{
      width:320px;
    }
    .mega-menu{
      width:min(760px,86vw);
    }
    .nav-item:nth-last-child(-n+3) .mega-menu{
      right:0;
      left:auto;
    }
    .nav-item:hover>.dropdown-panel,
    .nav-item:hover>.mega-menu,
    .nav-item:focus-within>.dropdown-panel,
    .nav-item:focus-within>.mega-menu{
      visibility:visible;
      opacity:1;
      transform:translateY(0);
      pointer-events:auto;
    }
    .dropdown-panel::before,
    .mega-menu::before{
      position:absolute;
      right:0;
      bottom:100%;
      left:0;
      height:12px;
      content:"";
    }
    .panel-heading{
      margin-bottom:14px;
      color:var(--brand-dark);
      font-size:13px;
      font-weight:850;
      letter-spacing:.08em;
      text-transform:uppercase;
    }
    .panel-list{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .panel-list a{
      padding:8px 11px;
      color:#344258;
      background:#f3f6fa;
      border-radius:9px;
      font-size:13px;
      font-weight:700;
    }
    .panel-list a:hover{
      color:#fff;
      background:var(--brand);
    }
    .broker-grid,
    .video-grid,
    .tool-grid,
    .product-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
    }
    .mega-card{
      min-width:0;
      display:flex;
      flex-direction:column;
      gap:7px;
      padding:13px;
      background:#f7f9fc;
      border:1px solid #e6ebf2;
      border-radius:12px;
      transition:.2s ease;
    }
    .mega-card:hover{
      border-color:#9ab4e3;
      box-shadow:0 9px 22px rgba(11,61,145,.12);
      transform:translateY(-2px);
    }
    .mega-card img{
      width:100%;
      height:76px;
      object-fit:cover;
      border-radius:8px;
    }
    .tool-grid .mega-card img{
      width:34px;
      height:34px;
      object-fit:contain;
    }
    .mega-card strong{
      overflow:hidden;
      color:#172338;
      font-size:14px;
      line-height:1.35;
      text-overflow:ellipsis;
    }
    .mega-card small{
      overflow:hidden;
      color:var(--muted);
      font-size:12px;
      line-height:1.45;
    }
    .mega-footer{
      display:block;
      margin:16px -20px -20px;
      padding:13px 20px;
      color:#fff;
      background:var(--brand);
      border-radius:0 0 15px 15px;
      font-size:13px;
      font-weight:800;
      text-align:center;
    }
    .header-btns{
      display:flex;
      align-items:center;
      gap:9px;
      white-space:nowrap;
    }
    .member-link{
      color:var(--brand);
      font-size:14px;
      font-weight:800;
    }
    .account-link{
      padding:10px 15px;
      color:#fff;
      background:var(--red);
      border-radius:9px;
      font-size:13px;
      font-weight:850;
      box-shadow:0 8px 18px rgba(181,31,50,.2);
    }
    .account-link:hover{background:#941728}
    .hamburger{
      width:42px;
      height:42px;
      display:none;
      padding:9px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:10px;
      cursor:pointer;
    }
    .hamburger span{
      width:100%;
      height:2px;
      display:block;
      margin:5px 0;
      background:var(--brand-dark);
      transition:.2s ease;
    }
    .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;
      z-index:80;
      visibility:hidden;
      opacity:0;
      background:rgba(3,10,24,.68);
      transition:.25s ease;
    }
    .drawer-overlay.open{
      visibility:visible;
      opacity:1;
    }
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      bottom:0;
      z-index:90;
      width:min(420px,92vw);
      overflow-y:auto;
      background:#fff;
      box-shadow:-20px 0 55px rgba(0,0,0,.24);
      transform:translateX(105%);
      transition:.28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:76px;
      display:flex;
      align-items:center;
      gap:12px;
      padding:15px 18px;
      color:#fff;
      background:var(--brand-dark);
    }
    .drawer-head span{
      min-width:0;
      margin-right:auto;
      font-weight:800;
    }
    .drawer-head>a{
      padding:8px 10px;
      background:var(--red);
      border-radius:8px;
      font-size:12px;
      font-weight:850;
    }
    .drawer-close{
      width:36px;
      height:36px;
      padding:0;
      color:#fff;
      background:transparent;
      border:1px solid rgba(255,255,255,.35);
      border-radius:50%;
      font-size:25px;
      line-height:1;
      cursor:pointer;
    }
    .drawer-menu{padding:14px}
    .drawer-link,
    .drawer-toggle{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:14px 12px;
      color:#1d2a3e;
      background:transparent;
      border:0;
      border-bottom:1px solid #e7ebf1;
      font-weight:800;
      text-align:left;
      cursor:pointer;
    }
    .drawer-toggle::after{
      content:"+";
      color:var(--brand);
      font-size:20px;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      max-height:0;
      overflow:hidden;
      background:#f5f8fc;
      transition:max-height .25s ease;
    }
    .drawer-submenu.open{
      max-height:900px;
      padding:7px 0;
    }
    .drawer-submenu a{
      display:block;
      padding:10px 16px 10px 24px;
      color:#4c5b70;
      font-size:14px;
    }
    .drawer-submenu a:hover{
      color:var(--brand);
      background:#e8f0ff;
    }

    .download-page-main{
      overflow:hidden;
      background:
        radial-gradient(circle at 90% 5%,rgba(11,61,145,.12),transparent 27%),
        linear-gradient(180deg,#f8faff 0%,#f3f6fb 55%,#fff 100%);
    }
    .download-page-main .download-hero{
      padding:78px 0 64px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(6,21,47,.97),rgba(11,61,145,.94)),
        radial-gradient(circle at 80% 25%,rgba(217,173,80,.25),transparent 30%);
    }
    .download-page-main .breadcrumbs{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      margin-bottom:24px;
      color:#bed0ed;
      font-size:14px;
    }
    .download-page-main .breadcrumbs a:hover{color:#fff}
    .download-page-main .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      margin-bottom:14px;
      color:#f4d58b;
      font-size:13px;
      font-weight:850;
      letter-spacing:.11em;
      text-transform:uppercase;
    }
    .download-page-main .eyebrow::before{
      width:30px;
      height:2px;
      background:var(--gold);
      content:"";
    }
    .download-page-main h1{
      max-width:880px;
      margin:0;
      font-size:clamp(38px,6vw,72px);
      line-height:1.02;
      letter-spacing:-.045em;
    }
    .download-page-main .hero-copy{
      max-width:760px;
      margin:24px 0 0;
      color:#dce7f8;
      font-size:18px;
    }
    .download-page-main .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:30px;
    }
    .download-page-main .primary-action,
    .download-page-main .secondary-action{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:50px;
      padding:12px 20px;
      border-radius:10px;
      font-weight:850;
    }
    .download-page-main .primary-action{
      color:#fff;
      background:var(--red);
      box-shadow:0 12px 28px rgba(181,31,50,.3);
    }
    .download-page-main .primary-action:hover{background:#981728}
    .download-page-main .secondary-action{
      color:#fff;
      border:1px solid rgba(255,255,255,.4);
      background:rgba(255,255,255,.08);
    }
    .download-page-main .secondary-action:hover{background:rgba(255,255,255,.15)}
    .download-page-main .hero-note{
      max-width:880px;
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:1px;
      margin-top:45px;
      overflow:hidden;
      background:rgba(255,255,255,.16);
      border:1px solid rgba(255,255,255,.16);
      border-radius:15px;
    }
    .download-page-main .hero-note div{
      padding:18px;
      background:rgba(4,18,43,.65);
    }
    .download-page-main .hero-note strong{
      display:block;
      color:#fff;
      font-size:15px;
    }
    .download-page-main .hero-note span{
      color:#b9c8df;
      font-size:13px;
    }

    .download-page-main .section{
      padding:76px 0;
    }
    .download-page-main .section-heading{
      max-width:730px;
      margin-bottom:34px;
    }
    .download-page-main .section-heading span{
      color:var(--brand);
      font-size:13px;
      font-weight:850;
      letter-spacing:.1em;
      text-transform:uppercase;
    }
    .download-page-main .section-heading h2{
      margin:7px 0 10px;
      color:#10213b;
      font-size:clamp(29px,4vw,44px);
      line-height:1.12;
      letter-spacing:-.03em;
    }
    .download-page-main .section-heading p{
      margin:0;
      color:var(--muted);
      font-size:17px;
    }
    .download-page-main .device-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:20px;
    }
    .download-page-main .device-card{
      position:relative;
      min-height:295px;
      padding:28px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:0 13px 35px rgba(7,21,44,.07);
    }
    .download-page-main .device-card::before{
      position:absolute;
      top:0;
      right:28px;
      left:28px;
      height:4px;
      background:linear-gradient(90deg,var(--brand),var(--gold));
      border-radius:0 0 5px 5px;
      content:"";
    }
    .download-page-main .device-icon{
      width:54px;
      height:54px;
      display:grid;
      place-items:center;
      margin-bottom:22px;
      color:#fff;
      background:var(--brand);
      border-radius:14px;
      font-size:23px;
      font-weight:900;
    }
    .download-page-main .device-card h3{
      margin:0 0 9px;
      color:#12223a;
      font-size:22px;
    }
    .download-page-main .device-card p{
      margin:0 0 18px;
      color:var(--muted);
    }
    .download-page-main .device-card ul{
      margin:0;
      padding:0;
      list-style:none;
    }
    .download-page-main .device-card li{
      position:relative;
      margin-top:8px;
      padding-left:21px;
      color:#3f4e63;
      font-size:14px;
    }
    .download-page-main .device-card li::before{
      position:absolute;
      top:8px;
      left:0;
      width:8px;
      height:8px;
      background:var(--gold);
      border-radius:50%;
      content:"";
    }

    .download-page-main .steps-section{
      background:#fff;
      border-block:1px solid var(--line);
    }
    .download-page-main .steps{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
      counter-reset:download-step;
    }
    .download-page-main .step{
      position:relative;
      padding:25px 22px;
      background:#f7f9fc;
      border:1px solid #e3e8ef;
      border-radius:16px;
      counter-increment:download-step;
    }
    .download-page-main .step::before{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      margin-bottom:18px;
      color:#fff;
      background:var(--brand);
      border-radius:50%;
      content:counter(download-step);
      font-weight:900;
    }
    .download-page-main .step h3{
      margin:0 0 8px;
      color:#16243a;
      font-size:18px;
    }
    .download-page-main .step p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }

    .download-page-main .safety-panel{
      display:grid;
      grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);
      gap:30px;
      padding:38px;
      color:#fff;
      background:#081a37;
      border-radius:24px;
      box-shadow:var(--shadow);
    }
    .download-page-main .safety-panel h2{
      margin:0 0 12px;
      color:#fff;
      font-size:34px;
      line-height:1.15;
    }
    .download-page-main .safety-panel p{
      margin:0;
      color:#c8d6eb;
    }
    .download-page-main .check-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .download-page-main .check-list li{
      position:relative;
      padding:13px 14px 13px 42px;
      color:#e5edf8;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.1);
      border-radius:10px;
    }
    .download-page-main .check-list li::before{
      position:absolute;
      top:13px;
      left:14px;
      color:#f1c86c;
      content:"✓";
      font-weight:900;
    }

    .download-page-main .faq-section{padding-top:8px}
    .download-page-main .faq-list{
      display:grid;
      gap:13px;
    }
    .download-page-main details{
      padding:20px 22px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:13px;
      box-shadow:0 8px 24px rgba(7,21,44,.05);
    }
    .download-page-main summary{
      position:relative;
      padding-right:30px;
      color:#16243a;
      font-weight:850;
      cursor:pointer;
      list-style:none;
    }
    .download-page-main summary::-webkit-details-marker{display:none}
    .download-page-main summary::after{
      position:absolute;
      top:-2px;
      right:0;
      color:var(--brand);
      content:"+";
      font-size:22px;
    }
    .download-page-main details[open] summary::after{content:"−"}
    .download-page-main details p{
      margin:13px 0 0;
      color:var(--muted);
    }

    .download-page-main .cta-wrap{padding:10px 0 84px}
    .download-page-main .download-cta{
      padding:44px;
      color:#fff;
      background:linear-gradient(120deg,var(--brand-dark),var(--brand));
      border-radius:24px;
      text-align:center;
      box-shadow:var(--shadow);
    }
    .download-page-main .download-cta h2{
      margin:0 0 10px;
      font-size:clamp(28px,4vw,42px);
      line-height:1.15;
    }
    .download-page-main .download-cta p{
      max-width:710px;
      margin:0 auto 24px;
      color:#d9e4f5;
    }
    .download-page-main .compliance{
      margin-top:18px;
      color:#b9c9df;
      font-size:12px;
    }

    .footer{
      color:#c3cee0;
      background:var(--footer);
      border-top:4px solid var(--brand);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.6fr 1fr 1fr 1fr;
      gap:36px;
      padding:58px 0 42px;
    }
    .footer h3{
      margin:0 0 15px;
      color:#fff;
      font-size:15px;
    }
    .footer-brand strong{
      display:block;
      margin-bottom:13px;
      color:#fff;
      font-size:22px;
    }
    .footer p{
      margin:0 0 12px;
      color:#aebbd0;
      font-size:14px;
    }
    .footer-grid>div:not(.footer-brand)>a{
      display:block;
      margin:9px 0;
      color:#bac6d9;
      font-size:14px;
    }
    .footer a:hover{color:#fff}
    .footer-bottom{
      min-height:68px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      border-top:1px solid rgba(255,255,255,.12);
      color:#94a5be;
      font-size:13px;
    }

    @media (max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{min-height:70px}
      .header-btns{margin-left:auto}
      .download-page-main .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
    }

    @media (max-width:820px){
      .topbar .container{
        padding:8px 0;
        align-items:flex-start;
      }
      .topbar-links span{display:none}
      .download-page-main .device-grid{grid-template-columns:1fr}
      .download-page-main .safety-panel{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }

    @media (max-width:620px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container>span{display:none}
      .topbar-links{
        width:100%;
        justify-content:space-between;
        gap:10px;
      }
      .topbar-links a{font-size:11px}
      .logo{
        min-width:0;
        max-width:160px;
      }
      .logo img{
        width:36px;
        height:36px;
      }
      .logo span{
        overflow:hidden;
        text-overflow:ellipsis;
        white-space:nowrap;
      }
      .member-link,
      .account-link{display:none}
      .download-page-main .download-hero{padding:56px 0 48px}
      .download-page-main .hero-copy{font-size:16px}
      .download-page-main .hero-actions{
        display:grid;
        grid-template-columns:1fr;
      }
      .download-page-main .hero-note{grid-template-columns:1fr}
      .download-page-main .section{padding:56px 0}
      .download-page-main .steps{grid-template-columns:1fr}
      .download-page-main .safety-panel{padding:27px 20px}
      .download-page-main .download-cta{padding:34px 20px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{
        padding:20px 0;
        align-items:flex-start;
        flex-direction:column;
      }
    }