:root{
      --theme:#0B3D91;
      --template-theme:{主题色};
      --theme-dark:#072b68;
      --theme-soft:#edf4ff;
      --coral:#ef765f;
      --cream:#fff8ea;
      --ink:#252b35;
      --muted:#667085;
      --line:#e4e8ef;
      --white:#fff;
      --surface:#f5f7fb;
      --success:#14804a;
      --shadow:0 18px 50px rgba(11,61,145,.11);
      --radius:22px;
      --container:1180px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--surface);
      font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;
      line-height:1.65;
      overflow-x:hidden;
    }
    body,
    button,
    input{font:inherit}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{color:inherit}
    .container{
      width:min(var(--container),calc(100% - 40px));
      margin:0 auto;
    }

    .topbar{
      position:relative;
      z-index:60;
      color:#dce8ff;
      background:#061f49;
      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:24px;
    }
    .topbar a{transition:color .2s ease}
    .topbar a:hover{color:#fff}

    .header{
      position:relative;
      z-index:50;
      border-bottom:1px solid rgba(11,61,145,.1);
      background:rgba(255,255,255,.96);
      box-shadow:0 8px 25px rgba(28,44,73,.05);
    }
    .header-inner{
      position:relative;
      min-height:78px;
      display:flex;
      align-items:center;
      gap:24px;
    }
    .logo{
      min-width:180px;
      display:flex;
      align-items:center;
      gap:11px;
      color:var(--theme);
      font-size:19px;
      font-weight:800;
      letter-spacing:.01em;
    }
    .logo img{
      width:42px;
      height:42px;
      border-radius:12px;
      object-fit:contain;
      background:#fff;
    }
    .main-nav{
      flex:1;
      align-self:stretch;
    }
    .nav-list{
      height:100%;
      margin:0;
      padding:0;
      display:flex;
      align-items:stretch;
      justify-content:center;
      list-style:none;
    }
    .nav-item{
      display:flex;
      align-items:stretch;
    }
    .nav-link{
      position:relative;
      padding:0 14px;
      display:flex;
      align-items:center;
      color:#313b4b;
      font-size:15px;
      font-weight:650;
      white-space:nowrap;
      transition:color .2s ease;
    }
    .nav-link::after{
      content:"";
      position:absolute;
      right:14px;
      bottom:0;
      left:14px;
      height:3px;
      border-radius:3px 3px 0 0;
      background:var(--theme);
      opacity:0;
      transform:scaleX(.4);
      transition:.2s ease;
    }
    .nav-link.has-arrow{padding-right:26px}
    .nav-link.has-arrow::before{
      content:"";
      position:absolute;
      right:12px;
      top:50%;
      width:6px;
      height:6px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      transform:translateY(-70%) rotate(45deg);
      transition:transform .2s ease;
    }
    .nav-item:hover .nav-link,
    .nav-item:focus-within .nav-link{color:var(--theme)}
    .nav-item:hover .nav-link::after,
    .nav-item:focus-within .nav-link::after{
      opacity:1;
      transform:scaleX(1);
    }
    .nav-item:hover .has-arrow::before,
    .nav-item:focus-within .has-arrow::before{
      transform:translateY(-30%) rotate(225deg);
    }

    .dropdown-panel,
    .mega-menu{
      position:absolute;
      top:100%;
      left:0;
      right:0;
      z-index:80;
      padding:24px;
      border:1px solid var(--line);
      border-top:3px solid var(--theme);
      border-radius:0 0 18px 18px;
      background:#fff;
      box-shadow:0 24px 60px rgba(22,39,75,.16);
      opacity:0;
      visibility:hidden;
      pointer-events:none;
      transform:translateY(8px);
      transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
    }
    .dropdown-panel::before,
    .mega-menu::before{
      content:"";
      position:absolute;
      right:0;
      bottom:100%;
      left:0;
      height:10px;
    }
    .dropdown-panel{
      left:190px;
      right:auto;
      width:390px;
    }
    .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:translateY(0);
    }
    .panel-title{
      margin:0 0 12px;
      color:#1e293b;
      font-size:14px;
      font-weight:800;
    }
    .panel-list{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .panel-list a{
      padding:8px 11px;
      border:1px solid #dfe6f0;
      border-radius:9px;
      color:#475467;
      background:#f8fafc;
      font-size:13px;
      transition:.2s ease;
    }
    .panel-list a:hover{
      color:var(--theme);
      border-color:#aac3ec;
      background:var(--theme-soft);
    }
    .dropdown-panel .panel-list{
      display:grid;
      gap:0;
    }
    .dropdown-panel .panel-list a{
      padding:11px 3px;
      border:0;
      border-bottom:1px solid #edf0f5;
      border-radius:0;
      background:transparent;
    }
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
    }
    .mega-card{
      min-width:0;
      padding:14px;
      display:grid;
      grid-template-columns:42px minmax(0,1fr);
      align-items:center;
      gap:3px 11px;
      border:1px solid #e4e9f1;
      border-radius:13px;
      background:#fbfcfe;
      transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
    }
    .mega-card:hover{
      transform:translateY(-2px);
      border-color:#aec5e9;
      box-shadow:0 10px 24px rgba(11,61,145,.09);
    }
    .mega-card img{
      width:42px;
      height:42px;
      grid-row:1 / span 3;
      border-radius:10px;
      object-fit:contain;
      background:#fff;
    }
    .mega-card strong{
      min-width:0;
      overflow:hidden;
      color:#253249;
      font-size:14px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-card small{
      min-width:0;
      overflow:hidden;
      color:#737e90;
      font-size:11px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-footer{
      margin-top:16px;
      padding-top:13px;
      display:block;
      border-top:1px solid var(--line);
      color:var(--theme);
      font-size:14px;
      font-weight:750;
      text-align:right;
    }

    .header-btns{
      display:flex;
      align-items:center;
      gap:9px;
    }
    .member-link,
    .open-account{
      min-height:40px;
      padding:8px 15px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:10px;
      font-size:14px;
      font-weight:750;
      white-space:nowrap;
    }
    .member-link{
      color:var(--theme);
      border:1px solid #c9d8ef;
      background:#fff;
    }
    .open-account{
      color:#fff;
      border:1px solid var(--theme);
      background:var(--theme);
      box-shadow:0 8px 20px rgba(11,61,145,.2);
    }
    .member-link:hover{background:var(--theme-soft)}
    .open-account:hover{background:var(--theme-dark)}
    .hamburger{
      width:43px;
      height:43px;
      padding:10px;
      display:none;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      gap:5px;
      border:1px solid #d8e0eb;
      border-radius:11px;
      background:#fff;
      cursor:pointer;
    }
    .hamburger span{
      width:21px;
      height:2px;
      border-radius:2px;
      background:var(--theme);
      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:98;
      background:rgba(7,20,43,.56);
      opacity:0;
      visibility:hidden;
      transition:.25s ease;
    }
    .drawer-overlay.open{
      opacity:1;
      visibility:visible;
    }
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      bottom:0;
      z-index:99;
      width:min(390px,88vw);
      overflow-y:auto;
      background:#fff;
      box-shadow:-20px 0 50px rgba(0,0,0,.18);
      transform:translateX(105%);
      transition:transform .28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:72px;
      padding:14px 18px;
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
      background:var(--theme);
    }
    .drawer-head a{
      padding:7px 11px;
      border:1px solid rgba(255,255,255,.35);
      border-radius:8px;
      font-size:13px;
      font-weight:700;
    }
    .drawer-close{
      width:38px;
      height:38px;
      margin-left:auto;
      border:0;
      color:#fff;
      background:transparent;
      font-size:30px;
      line-height:1;
      cursor:pointer;
    }
    .drawer-menu{padding:12px 18px 30px}
    .drawer-link,
    .drawer-toggle{
      width:100%;
      min-height:50px;
      padding:12px 4px;
      display:flex;
      align-items:center;
      border:0;
      border-bottom:1px solid #edf0f5;
      color:#263246;
      background:transparent;
      font-weight:750;
      text-align:left;
      cursor:pointer;
    }
    .drawer-toggle{
      position:relative;
      padding-right:30px;
    }
    .drawer-toggle::after{
      content:"+";
      position:absolute;
      right:5px;
      color:var(--theme);
      font-size:22px;
      font-weight:400;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      max-height:0;
      overflow:hidden;
      padding:0 10px;
      background:#f7f9fc;
      transition:max-height .3s ease,padding .3s ease;
    }
    .drawer-submenu.open{
      max-height:720px;
      padding:7px 10px;
    }
    .drawer-submenu a{
      padding:9px 6px;
      display:block;
      border-bottom:1px dashed #dce3ed;
      color:#59667a;
      font-size:13px;
    }

    .target-page-main.download-page-main{
      min-height:650px;
      background:
        radial-gradient(circle at 8% 12%,rgba(239,118,95,.13),transparent 28%),
        radial-gradient(circle at 94% 6%,rgba(11,61,145,.12),transparent 25%),
        linear-gradient(180deg,#fffaf0 0,#f6f8fc 480px);
    }
    .download-page-main .download-intro{
      padding:72px 0 54px;
      text-align:center;
    }
    .download-page-main .eyebrow{
      margin:0 auto 14px;
      width:max-content;
      padding:7px 13px;
      border:1px solid rgba(239,118,95,.28);
      border-radius:999px;
      color:#b94734;
      background:#fff3ed;
      font-size:13px;
      font-weight:800;
      letter-spacing:.08em;
    }
    .download-page-main .download-intro h1{
      max-width:820px;
      margin:0 auto;
      color:#222a35;
      font-size:clamp(34px,5vw,62px);
      line-height:1.13;
      letter-spacing:-.04em;
    }
    .download-page-main .download-intro h1 span{color:var(--theme)}
    .download-page-main .download-intro > p{
      max-width:760px;
      margin:22px auto 0;
      color:#626e80;
      font-size:17px;
    }
    .download-page-main .intro-actions{
      margin-top:28px;
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:12px;
    }
    .download-page-main .primary-action,
    .download-page-main .secondary-action{
      min-height:50px;
      padding:12px 22px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:12px;
      font-size:15px;
      font-weight:800;
      transition:.2s ease;
    }
    .download-page-main .primary-action{
      color:#fff;
      background:var(--theme);
      box-shadow:0 12px 28px rgba(11,61,145,.24);
    }
    .download-page-main .secondary-action{
      color:#344054;
      border:1px solid #d7dde7;
      background:#fff;
    }
    .download-page-main .primary-action:hover{
      transform:translateY(-2px);
      background:var(--theme-dark);
    }
    .download-page-main .secondary-action:hover{
      color:var(--theme);
      border-color:#adc3e5;
    }

    .download-page-main .download-console{
      position:relative;
      max-width:960px;
      margin:0 auto;
      padding:23px;
      border:1px solid rgba(11,61,145,.12);
      border-radius:28px;
      background:rgba(255,255,255,.9);
      box-shadow:var(--shadow);
      isolation:isolate;
    }
    .download-page-main .download-console::before,
    .download-page-main .download-console::after{
      content:"";
      position:absolute;
      z-index:-1;
      border-radius:25px;
    }
    .download-page-main .download-console::before{
      inset:18px -22px -18px 22px;
      background:#f1b5a7;
      transform:rotate(1.8deg);
    }
    .download-page-main .download-console::after{
      inset:-14px 28px 24px -18px;
      background:#17395d;
      transform:rotate(-1.5deg);
    }
    .download-page-main .console-head{
      padding:0 3px 18px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      border-bottom:1px solid #e6eaf0;
    }
    .download-page-main .console-status{
      display:flex;
      align-items:center;
      gap:9px;
      color:var(--success);
      font-size:13px;
      font-weight:800;
    }
    .download-page-main .console-status::before{
      content:"";
      width:9px;
      height:9px;
      border-radius:50%;
      background:#23a566;
      box-shadow:0 0 0 5px rgba(35,165,102,.13);
    }
    .download-page-main .console-head small{color:#7a8595}
    .download-page-main .platform-grid{
      padding-top:20px;
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
    }
    .download-page-main .platform-card{
      padding:23px;
      border:1px solid #e1e6ee;
      border-radius:17px;
      background:#fff;
      text-align:left;
    }
    .download-page-main .platform-icon{
      width:48px;
      height:48px;
      margin-bottom:17px;
      display:grid;
      place-items:center;
      border-radius:14px;
      color:#fff;
      background:var(--theme);
      font-size:19px;
      font-weight:900;
      box-shadow:0 9px 20px rgba(11,61,145,.19);
    }
    .download-page-main .platform-card:nth-child(2) .platform-icon{background:var(--coral)}
    .download-page-main .platform-card:nth-child(3) .platform-icon{background:#303846}
    .download-page-main .platform-card h2{
      margin:0 0 7px;
      font-size:18px;
    }
    .download-page-main .platform-card p{
      min-height:48px;
      margin:0 0 17px;
      color:#6a7585;
      font-size:13px;
    }
    .download-page-main .platform-card a{
      color:var(--theme);
      font-size:14px;
      font-weight:800;
    }
    .download-page-main .platform-card a:hover{text-decoration:underline}

    .download-page-main .section-block{padding:90px 0}
    .download-page-main .section-heading{
      max-width:720px;
      margin:0 auto 38px;
      text-align:center;
    }
    .download-page-main .section-heading span{
      color:var(--coral);
      font-size:13px;
      font-weight:850;
      letter-spacing:.12em;
    }
    .download-page-main .section-heading h2{
      margin:8px 0 12px;
      color:#202936;
      font-size:clamp(28px,4vw,42px);
      line-height:1.2;
    }
    .download-page-main .section-heading p{
      margin:0;
      color:#687487;
    }

    .download-page-main .step-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:22px;
    }
    .download-page-main .step-card{
      position:relative;
      padding:30px;
      overflow:hidden;
      border:1px solid #e3e8ef;
      border-radius:20px;
      background:#fff;
      box-shadow:0 12px 32px rgba(25,42,70,.06);
    }
    .download-page-main .step-number{
      position:absolute;
      top:6px;
      right:18px;
      color:rgba(11,61,145,.07);
      font-size:80px;
      font-weight:900;
      line-height:1;
    }
    .download-page-main .step-mark{
      width:42px;
      height:42px;
      margin-bottom:20px;
      display:grid;
      place-items:center;
      border-radius:50%;
      color:#fff;
      background:var(--theme);
      font-weight:900;
    }
    .download-page-main .step-card:nth-child(2) .step-mark{background:var(--coral)}
    .download-page-main .step-card:nth-child(3) .step-mark{background:#303846}
    .download-page-main .step-card h3{
      position:relative;
      margin:0 0 10px;
      font-size:20px;
    }
    .download-page-main .step-card p{
      position:relative;
      margin:0;
      color:#6b7687;
      font-size:14px;
    }

    .download-page-main .safety-wrap{
      padding:0 0 90px;
    }
    .download-page-main .safety-panel{
      padding:42px;
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:38px;
      align-items:center;
      border-radius:28px;
      color:#fff;
      background:
        linear-gradient(135deg,rgba(255,255,255,.06),transparent 45%),
        #122c50;
      box-shadow:0 20px 50px rgba(6,31,73,.18);
    }
    .download-page-main .safety-copy small{
      color:#f7a795;
      font-weight:800;
      letter-spacing:.1em;
    }
    .download-page-main .safety-copy h2{
      margin:8px 0 12px;
      font-size:34px;
      line-height:1.22;
    }
    .download-page-main .safety-copy p{
      margin:0;
      color:#c8d6ea;
    }
    .download-page-main .safety-list{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:13px;
    }
    .download-page-main .safety-item{
      min-height:100px;
      padding:18px;
      border:1px solid rgba(255,255,255,.12);
      border-radius:15px;
      background:rgba(255,255,255,.07);
    }
    .download-page-main .safety-item strong{
      display:block;
      margin-bottom:5px;
      color:#fff;
    }
    .download-page-main .safety-item span{
      display:block;
      color:#c5d2e4;
      font-size:13px;
    }

    .download-page-main .faq-section{
      padding:82px 0;
      background:#fff;
    }
    .download-page-main .faq-list{
      max-width:900px;
      margin:0 auto;
      display:grid;
      gap:12px;
    }
    .download-page-main details{
      border:1px solid #e1e6ed;
      border-radius:15px;
      background:#fbfcfe;
    }
    .download-page-main details[open]{
      border-color:#bacdea;
      background:var(--theme-soft);
    }
    .download-page-main summary{
      position:relative;
      padding:19px 52px 19px 21px;
      color:#293446;
      font-weight:800;
      cursor:pointer;
      list-style:none;
    }
    .download-page-main summary::-webkit-details-marker{display:none}
    .download-page-main summary::after{
      content:"+";
      position:absolute;
      top:50%;
      right:20px;
      color:var(--theme);
      font-size:23px;
      font-weight:400;
      transform:translateY(-50%);
    }
    .download-page-main details[open] summary::after{content:"−"}
    .download-page-main details p{
      margin:0;
      padding:0 21px 20px;
      color:#647185;
      font-size:14px;
    }

    .download-page-main .download-cta{
      padding:84px 0;
      background:linear-gradient(135deg,#fff4e6,#eff5ff);
    }
    .download-page-main .cta-card{
      padding:48px;
      border:1px solid rgba(11,61,145,.12);
      border-radius:26px;
      background:#fff;
      box-shadow:var(--shadow);
      text-align:center;
    }
    .download-page-main .cta-card h2{
      margin:0 0 12px;
      font-size:34px;
    }
    .download-page-main .cta-card p{
      max-width:680px;
      margin:0 auto 25px;
      color:#687487;
    }

    .footer{
      padding:66px 0 0;
      color:#c8d4e5;
      background:#071c3b;
    }
    .footer-grid{
      padding-bottom:42px;
      display:grid;
      grid-template-columns:1.4fr 1fr 1fr 1fr;
      gap:42px;
    }
    .footer h3{
      margin:0 0 17px;
      color:#fff;
      font-size:15px;
    }
    .footer strong{
      display:block;
      margin-bottom:13px;
      color:#fff;
      font-size:21px;
    }
    .footer p{
      margin:0 0 13px;
      color:#9fb0c7;
      font-size:13px;
    }
    .footer-grid > div > a{
      width:max-content;
      max-width:100%;
      margin:0 0 10px;
      display:block;
      color:#b5c4d8;
      font-size:13px;
      transition:.2s ease;
    }
    .footer-grid > div > a:hover{
      color:#fff;
      transform:translateX(3px);
    }
    .footer-bottom{
      min-height:66px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      border-top:1px solid rgba(255,255,255,.11);
      color:#8295af;
      font-size:12px;
    }

    @media (max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-inner{min-height:70px}
      .header-btns{margin-left:auto}
      .download-page-main .platform-grid,
      .download-page-main .step-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }

    @media (max-width:820px){
      .topbar .container{
        padding:8px 0;
        align-items:flex-start;
      }
      .topbar-links{
        align-items:flex-end;
        flex-direction:column;
        gap:2px;
      }
      .download-page-main .download-intro{padding-top:52px}
      .download-page-main .download-console{
        width:calc(100% - 22px);
        padding:17px;
      }
      .download-page-main .platform-grid,
      .download-page-main .step-grid{grid-template-columns:1fr}
      .download-page-main .platform-card p{min-height:0}
      .download-page-main .safety-panel{grid-template-columns:1fr}
      .download-page-main .section-block{padding:70px 0}
    }

    @media (max-width:620px){
      .container{width:min(100% - 28px,var(--container))}
      .topbar .container{
        display:block;
        text-align:center;
      }
      .topbar-links{
        margin-top:3px;
        align-items:center;
      }
      .topbar-links span:last-child{display:none}
      .logo{min-width:0}
      .logo img{width:38px;height:38px}
      .logo span{
        max-width:125px;
        overflow:hidden;
        text-overflow:ellipsis;
        white-space:nowrap;
      }
      .member-link{display:none}
      .open-account{padding:7px 12px}
      .header-inner{gap:9px}
      .download-page-main .download-intro h1{font-size:37px}
      .download-page-main .download-intro > p{font-size:15px}
      .download-page-main .intro-actions{
        align-items:stretch;
        flex-direction:column;
      }
      .download-page-main .download-console::before{inset:12px -9px -12px 12px}
      .download-page-main .download-console::after{inset:-9px 13px 15px -9px}
      .download-page-main .console-head{
        align-items:flex-start;
        flex-direction:column;
        gap:5px;
      }
      .download-page-main .safety-panel,
      .download-page-main .cta-card{padding:30px 22px}
      .download-page-main .safety-copy h2,
      .download-page-main .cta-card h2{font-size:28px}
      .download-page-main .safety-list{grid-template-columns:1fr}
      .download-page-main .faq-section,
      .download-page-main .download-cta{padding:64px 0}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .footer-bottom{
        padding:20px 0;
        align-items:flex-start;
        flex-direction:column;
        justify-content:center;
        gap:4px;
      }
    }