:root{
      --theme:#0B3D91;
      --template-theme:{主题色};
      --theme-dark:#072b68;
      --theme-soft:#eaf1fc;
      --ink:#10213d;
      --muted:#60708a;
      --line:#dce5f1;
      --surface:#ffffff;
      --page:#f5f8fc;
      --success:#168560;
      --radius:18px;
      --shadow:0 16px 42px rgba(21,48,88,.1);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--page);
      font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;
      line-height:1.65;
      -webkit-font-smoothing:antialiased;
    }
    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:0 auto}
    .topbar{
      position:relative;
      z-index:120;
      color:#dce8fc;
      background:#061c43;
      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:22px}
    .topbar a{transition:color .2s ease}
    .topbar a:hover{color:#fff}
    .header{
      position:relative;
      z-index:110;
      background:rgba(255,255,255,.97);
      border-bottom:1px solid rgba(220,229,241,.9);
      box-shadow:0 6px 22px rgba(16,33,61,.04);
    }
    .header-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      gap:24px;
    }
    .logo{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:11px;
      max-width:230px;
      color:var(--theme);
      font-size:18px;
      font-weight:800;
    }
    .logo img{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:11px;
    }
    .logo span{
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .main-nav{margin-left:auto;align-self:stretch}
    .nav-list{
      height:100%;
      display:flex;
      align-items:stretch;
      gap:3px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .nav-item{
      position:relative;
      display:flex;
      align-items:center;
    }
    .nav-link{
      min-height:76px;
      display:flex;
      align-items:center;
      padding:0 13px;
      color:#263650;
      font-size:15px;
      font-weight:650;
      white-space:nowrap;
      transition:color .2s ease,background .2s ease;
    }
    .nav-link:hover,
    .nav-item:focus-within>.nav-link{
      color:var(--theme);
      background:var(--theme-soft);
    }
    .has-arrow::after{
      content:"";
      width:6px;
      height:6px;
      margin:-4px 0 0 8px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      transform:rotate(45deg);
    }
    .dropdown-panel,
    .mega-menu{
      position:absolute;
      top:100%;
      right:0;
      z-index:130;
      visibility:hidden;
      opacity:0;
      transform:translateY(8px);
      pointer-events:none;
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 18px 18px;
      box-shadow:0 24px 55px rgba(16,33,61,.16);
      transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
    }
    .dropdown-panel::before,
    .mega-menu::before{
      content:"";
      position:absolute;
      right:0;
      bottom:100%;
      left:0;
      height:10px;
    }
    .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{
      width:300px;
      padding:12px;
    }
    .dropdown-panel a{
      display:block;
      padding:10px 12px;
      border-radius:9px;
      color:#36465f;
      font-size:14px;
    }
    .dropdown-panel a:hover{color:var(--theme);background:var(--theme-soft)}
    .mega-menu{
      width:min(820px,calc(100vw - 40px));
      padding:22px;
    }
    .nav-item:nth-last-child(-n+3) .mega-menu{right:0}
    .mega-section-title{
      margin:0 0 11px;
      color:var(--theme);
      font-size:13px;
      font-weight:800;
      letter-spacing:.08em;
    }
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:10px;
    }
    .mega-card{
      min-width:0;
      display:flex;
      align-items:center;
      gap:11px;
      padding:11px;
      border:1px solid #e8eef6;
      border-radius:12px;
      background:#fbfdff;
      transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
    }
    .mega-card:hover{
      transform:translateY(-2px);
      border-color:#b9cbed;
      box-shadow:0 10px 24px rgba(11,61,145,.1);
    }
    .mega-card img{
      flex:0 0 auto;
      width:44px;
      height:44px;
      object-fit:cover;
      border-radius:10px;
      background:#eef3fa;
    }
    .mega-card span{min-width:0}
    .mega-card strong,
    .mega-card small{
      display:block;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .mega-card strong{
      color:#172841;
      font-size:14px;
      white-space:nowrap;
    }
    .mega-card small{
      margin-top:2px;
      color:#758198;
      font-size:11px;
      line-height:1.4;
      white-space:nowrap;
    }
    .mega-links{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:11px;
    }
    .mega-links a{
      padding:7px 11px;
      color:var(--theme);
      background:var(--theme-soft);
      border-radius:999px;
      font-size:12px;
      font-weight:700;
    }
    .header-btns{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:10px;
    }
    .member-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 18px;
      color:#fff;
      background:var(--theme);
      border-radius:10px;
      font-size:14px;
      font-weight:750;
      box-shadow:0 8px 20px rgba(11,61,145,.2);
    }
    .member-btn:hover{background:var(--theme-dark)}
    .hamburger{
      width:44px;
      height:42px;
      display:none;
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
      padding:0;
      background:#fff;
      border:1px solid var(--line);
      border-radius:10px;
      cursor:pointer;
    }
    .hamburger span{
      width:20px;
      height:2px;
      background:var(--ink);
      border-radius:2px;
      transition:transform .2s ease,opacity .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:190;
      visibility:hidden;
      opacity:0;
      background:rgba(6,20,43,.55);
      backdrop-filter:blur(3px);
      transition:opacity .25s ease,visibility .25s ease;
    }
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      bottom:0;
      z-index:200;
      width:min(390px,90vw);
      overflow-y:auto;
      background:#fff;
      box-shadow:-20px 0 55px rgba(6,20,43,.22);
      transform:translateX(105%);
      transition:transform .28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:72px;
      display:flex;
      align-items:center;
      gap:12px;
      padding:14px 18px;
      color:#fff;
      background:var(--theme);
    }
    .drawer-head>a{
      padding:7px 11px;
      border:1px solid rgba(255,255,255,.3);
      border-radius:8px;
      font-size:13px;
    }
    .drawer-close{
      width:38px;
      height:38px;
      margin-left:auto;
      padding:0;
      color:#fff;
      background:rgba(255,255,255,.12);
      border:0;
      border-radius:9px;
      font-size:27px;
      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:13px 12px;
      color:#1b2c45;
      background:transparent;
      border:0;
      border-bottom:1px solid #edf1f6;
      text-align:left;
      font-weight:700;
      cursor:pointer;
    }
    .drawer-toggle::after{
      content:"+";
      color:var(--theme);
      font-size:20px;
      font-weight:400;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      display:none;
      padding:6px 0 9px 13px;
      border-bottom:1px solid #edf1f6;
    }
    .drawer-submenu.open{display:block}
    .drawer-submenu a{
      display:block;
      padding:9px 12px;
      color:#617088;
      border-left:2px solid #d9e4f4;
      font-size:13px;
    }
    .drawer-submenu a:hover{color:var(--theme);background:var(--theme-soft)}
    .target-page-main.download-page-main{overflow:hidden}
    .download-page-main .download-hero{
      position:relative;
      padding:82px 0 72px;
      background:
        radial-gradient(circle at 12% 8%,rgba(105,154,226,.2),transparent 30%),
        radial-gradient(circle at 88% 80%,rgba(74,185,164,.14),transparent 26%),
        linear-gradient(145deg,#071d46 0%,#0b3d91 58%,#245ea8 100%);
      color:#fff;
      text-align:center;
    }
    .download-page-main .download-hero::before{
      content:"";
      position:absolute;
      inset:0;
      opacity:.16;
      background-image:
        linear-gradient(rgba(255,255,255,.15) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.15) 1px,transparent 1px);
      background-size:44px 44px;
      mask-image:linear-gradient(to bottom,#000,transparent);
    }
    .download-page-main .download-hero .container{position:relative}
    .download-page-main .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:17px;
      padding:7px 13px;
      color:#ddebff;
      background:rgba(255,255,255,.1);
      border:1px solid rgba(255,255,255,.18);
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      letter-spacing:.08em;
    }
    .download-page-main .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      background:#71dec2;
      border-radius:50%;
      box-shadow:0 0 0 5px rgba(113,222,194,.13);
    }
    .download-page-main .download-hero h1{
      max-width:850px;
      margin:0 auto;
      font-size:clamp(36px,5vw,62px);
      line-height:1.13;
      letter-spacing:-.04em;
    }
    .download-page-main .download-hero p{
      max-width:720px;
      margin:20px auto 0;
      color:#d6e4fa;
      font-size:17px;
    }
    .download-page-main .hero-actions{
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:12px;
      margin-top:30px;
    }
    .download-page-main .primary-action,
    .download-page-main .secondary-action{
      min-height:50px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:0 23px;
      border-radius:12px;
      font-weight:800;
      transition:transform .2s ease,background .2s ease;
    }
    .download-page-main .primary-action{
      color:var(--theme);
      background:#fff;
      box-shadow:0 12px 28px rgba(4,19,49,.25);
    }
    .download-page-main .secondary-action{
      color:#fff;
      border:1px solid rgba(255,255,255,.4);
      background:rgba(255,255,255,.08);
    }
    .download-page-main .primary-action:hover,
    .download-page-main .secondary-action:hover{transform:translateY(-2px)}
    .download-page-main .hero-notes{
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:20px;
      margin-top:25px;
      color:#bfd2ef;
      font-size:13px;
    }
    .download-page-main .hero-notes span::before{
      content:"✓";
      margin-right:7px;
      color:#7ce3c8;
      font-weight:900;
    }
    .download-page-main .section{padding:76px 0}
    .download-page-main .section-heading{
      max-width:720px;
      margin:0 auto 38px;
      text-align:center;
    }
    .download-page-main .section-heading span{
      color:var(--theme);
      font-size:13px;
      font-weight:850;
      letter-spacing:.12em;
    }
    .download-page-main .section-heading h2{
      margin:8px 0 10px;
      color:#112440;
      font-size:clamp(28px,3.8vw,42px);
      line-height:1.2;
    }
    .download-page-main .section-heading p{margin:0;color:var(--muted)}
    .download-page-main .platform-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:20px;
    }
    .download-page-main .platform-card{
      position:relative;
      min-width:0;
      padding:28px;
      overflow:hidden;
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .download-page-main .platform-card::after{
      content:"";
      position:absolute;
      right:-34px;
      top:-34px;
      width:105px;
      height:105px;
      background:var(--theme-soft);
      border-radius:50%;
    }
    .download-page-main .platform-icon{
      position:relative;
      z-index:1;
      width:54px;
      height:54px;
      display:grid;
      place-items:center;
      color:#fff;
      background:var(--theme);
      border-radius:15px;
      box-shadow:0 10px 22px rgba(11,61,145,.24);
      font-size:23px;
      font-weight:850;
    }
    .download-page-main .platform-card h3{
      margin:20px 0 7px;
      font-size:21px;
    }
    .download-page-main .platform-card p{
      min-height:78px;
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .download-page-main .platform-meta{
      display:flex;
      flex-wrap:wrap;
      gap:7px;
      margin:17px 0;
    }
    .download-page-main .platform-meta span{
      padding:5px 9px;
      color:#50627d;
      background:#f0f4f9;
      border-radius:7px;
      font-size:12px;
    }
    .download-page-main .card-action{
      width:100%;
      min-height:44px;
      display:flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      background:var(--theme);
      border-radius:10px;
      font-size:14px;
      font-weight:800;
    }
    .download-page-main .card-action:hover{background:var(--theme-dark)}
    .download-page-main .steps-section{background:#eef3f9}
    .download-page-main .steps{
      position:relative;
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
    }
    .download-page-main .steps::before{
      content:"";
      position:absolute;
      top:31px;
      left:10%;
      right:10%;
      height:2px;
      background:#c8d7eb;
    }
    .download-page-main .step{
      position:relative;
      padding:0 12px;
      text-align:center;
    }
    .download-page-main .step-number{
      position:relative;
      z-index:1;
      width:64px;
      height:64px;
      display:grid;
      place-items:center;
      margin:0 auto 17px;
      color:#fff;
      background:var(--theme);
      border:7px solid #eef3f9;
      border-radius:50%;
      box-shadow:0 7px 17px rgba(11,61,145,.2);
      font-weight:850;
    }
    .download-page-main .step h3{margin:0 0 7px;font-size:17px}
    .download-page-main .step p{margin:0;color:var(--muted);font-size:14px}
    .download-page-main .security-panel{
      display:grid;
      grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);
      gap:30px;
      padding:38px;
      color:#fff;
      background:#0a285f;
      border-radius:24px;
      box-shadow:0 22px 55px rgba(8,35,82,.2);
    }
    .download-page-main .security-copy h2{
      margin:0 0 12px;
      font-size:32px;
      line-height:1.25;
    }
    .download-page-main .security-copy p{margin:0;color:#c9d9f0}
    .download-page-main .security-list{
      display:grid;
      gap:11px;
    }
    .download-page-main .security-item{
      display:flex;
      gap:11px;
      align-items:flex-start;
      padding:13px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.11);
      border-radius:12px;
      font-size:14px;
    }
    .download-page-main .security-item b{
      flex:0 0 auto;
      color:#73dfc2;
    }
    .download-page-main .faq-list{
      max-width:880px;
      margin:0 auto;
      display:grid;
      gap:12px;
    }
    .download-page-main .faq-list details{
      background:#fff;
      border:1px solid var(--line);
      border-radius:14px;
      box-shadow:0 8px 24px rgba(21,48,88,.05);
    }
    .download-page-main .faq-list summary{
      position:relative;
      padding:19px 52px 19px 21px;
      cursor:pointer;
      list-style:none;
      font-weight:800;
    }
    .download-page-main .faq-list summary::-webkit-details-marker{display:none}
    .download-page-main .faq-list summary::after{
      content:"+";
      position:absolute;
      top:16px;
      right:20px;
      color:var(--theme);
      font-size:23px;
      font-weight:400;
    }
    .download-page-main .faq-list details[open] summary::after{content:"−"}
    .download-page-main .faq-list details p{
      margin:0;
      padding:0 21px 20px;
      color:var(--muted);
    }
    .download-page-main .download-cta{
      padding:0 0 82px;
    }
    .download-page-main .cta-inner{
      padding:42px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
      background:linear-gradient(135deg,#fff,#eaf1fc);
      border:1px solid #cfddf1;
      border-radius:22px;
      box-shadow:var(--shadow);
    }
    .download-page-main .cta-inner h2{margin:0 0 7px;font-size:28px}
    .download-page-main .cta-inner p{margin:0;color:var(--muted)}
    .download-page-main .cta-inner .primary-action{
      flex:0 0 auto;
      color:#fff;
      background:var(--theme);
    }
    .footer{
      color:#cbd6e8;
      background:#071a3b;
      border-top:4px solid var(--theme);
    }
    .footer .container{padding-top:55px}
    .footer-grid{
      display:grid;
      grid-template-columns:1.5fr 1fr 1fr 1fr;
      gap:42px;
      padding-bottom:42px;
    }
    .footer h3{
      margin:0 0 15px;
      color:#fff;
      font-size:15px;
    }
    .footer-brand strong{
      display:block;
      margin-bottom:12px;
      color:#fff;
      font-size:21px;
    }
    .footer-brand p{max-width:390px;margin:0;color:#9fb0c8;font-size:14px}
    .footer-grid>div:not(.footer-brand) a{
      display:block;
      width:max-content;
      max-width:100%;
      margin:0 0 9px;
      color:#adbad0;
      font-size:14px;
      transition:color .2s ease;
    }
    .footer-grid a:hover{color:#fff}
    .footer-grid p{color:#adbad0;font-size:14px;overflow-wrap:anywhere}
    .footer-bottom{
      min-height:68px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      color:#8394ae;
      border-top:1px solid rgba(255,255,255,.1);
      font-size:13px;
    }
    @media (max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-inner{min-height:70px}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:820px){
      .download-page-main .platform-grid{grid-template-columns:1fr}
      .download-page-main .platform-card p{min-height:0}
      .download-page-main .steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:32px}
      .download-page-main .steps::before{display:none}
      .download-page-main .security-panel{grid-template-columns:1fr}
      .download-page-main .cta-inner{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:620px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{min-height:42px}
      .topbar .container>div:first-child{display:none}
      .topbar-links{width:100%;justify-content:space-between;gap:10px}
      .topbar-links a{font-size:11px}
      .logo{max-width:175px}
      .logo img{width:38px;height:38px}
      .logo span{font-size:16px}
      .member-btn{display:none}
      .download-page-main .download-hero{padding:62px 0 58px}
      .download-page-main .download-hero p{font-size:15px}
      .download-page-main .hero-actions{flex-direction:column}
      .download-page-main .primary-action,
      .download-page-main .secondary-action{width:100%}
      .download-page-main .hero-notes{align-items:flex-start;flex-direction:column;gap:7px;text-align:left}
      .download-page-main .section{padding:58px 0}
      .download-page-main .platform-card{padding:22px}
      .download-page-main .steps{grid-template-columns:1fr}
      .download-page-main .security-panel{padding:26px 22px}
      .download-page-main .security-copy h2{font-size:26px}
      .download-page-main .cta-inner{padding:28px 22px}
      .download-page-main .cta-inner .primary-action{width:100%}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .footer-bottom{padding:18px 0;align-items:flex-start;flex-direction:column;justify-content:center;gap:5px}
    }