:root{
      --primary:#0B3D91;
      --template-accent:{主题色};
      --primary-dark:#06265f;
      --primary-soft:#eaf2ff;
      --accent:#79d7ff;
      --ink:#10213d;
      --muted:#66758d;
      --line:#dce5f2;
      --surface:#fff;
      --soft:#f4f7fb;
      --success:#16845b;
      --shadow:0 18px 50px rgba(11,61,145,.12);
      --radius:20px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fff;font-family:"Noto Sans Devanagari","Mangal",Arial,sans-serif;line-height:1.65}
    body.drawer-locked{overflow:hidden}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{color:inherit}
    .container{width:min(1180px,calc(100% - 36px));margin-inline:auto}
    .topbar{color:#dceaff;background:#071a3b;font-size:13px}
    .topbar-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .topbar-contact{display:flex;align-items:center;gap:18px}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:50;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);box-shadow:0 7px 22px rgba(17,39,76,.05)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:24px}
    .logo{display:inline-flex;align-items:center;gap:10px;font-weight:900;color:var(--primary);white-space:nowrap}
    .logo img{width:42px;height:42px;object-fit:contain;border-radius:10px}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:center;gap:2px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;min-height:78px;padding:0 12px;font-weight:700;font-size:14px;white-space:nowrap}
    .has-panel>.nav-link:after{content:"";width:6px;height:6px;margin-left:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .nav-link:hover,.nav-item:focus-within>.nav-link,.nav-item:hover>.nav-link{color:var(--primary)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;visibility:hidden;opacity:0;pointer-events:none;transform:translate(-50%,10px);background:#fff;border:1px solid var(--line);border-radius:0 0 18px 18px;box-shadow:0 24px 60px rgba(8,31,72,.18);transition:.2s ease}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px}
    .nav-item:hover>.dropdown-panel,.nav-item:focus-within>.dropdown-panel,.nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{visibility:visible;opacity:1;pointer-events:auto;transform:translate(-50%,0)}
    .dropdown-panel{width:380px;padding:20px}
    .mega-menu{width:min(920px,92vw);padding:22px}
    .nav-item:nth-last-child(-n+3) .mega-menu{left:auto;right:-100px;transform:translateY(10px)}
    .nav-item:nth-last-child(-n+3):hover>.mega-menu,.nav-item:nth-last-child(-n+3):focus-within>.mega-menu{transform:translateY(0)}
    .panel-head,.mega-head{display:flex;align-items:center;justify-content:space-between;gap:15px;padding-bottom:14px;border-bottom:1px solid var(--line)}
    .panel-head a,.mega-head a{color:var(--primary);font-size:13px;font-weight:800}
    .dropdown-articles{display:grid;margin-top:8px}
    .dropdown-article{padding:12px 4px;border-bottom:1px solid #edf1f7;font-size:14px}
    .dropdown-article:hover{color:var(--primary)}
    .mega-categories{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
    .mega-categories a{padding:6px 11px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:800}
    .mega-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:15px}
    .mega-card{min-width:0;display:flex;gap:12px;padding:12px;border:1px solid var(--line);border-radius:14px;background:#fff}
    .mega-card:hover{border-color:#9ec1f1;box-shadow:0 10px 24px rgba(11,61,145,.1)}
    .mega-card>img{width:54px;height:54px;flex:0 0 54px;object-fit:cover;border-radius:10px;background:var(--soft)}
    .mega-card>span{min-width:0}
    .mega-card strong{display:block;font-size:13px;line-height:1.4}
    .mega-card p{display:-webkit-box;overflow:hidden;margin:5px 0 0;color:var(--muted);font-size:11px;line-height:1.45;-webkit-box-orient:vertical;-webkit-line-clamp:2}
    .mini-meta{display:flex!important;flex-wrap:wrap;gap:4px 8px;margin-top:6px;color:var(--muted);font-size:10px}
    .mini-meta b{color:var(--success)}
    .header-btns{display:flex;align-items:center;gap:9px}
    .header-btns>a{padding:10px 14px;border-radius:10px;background:var(--primary);color:#fff;font-size:13px;font-weight:800;white-space:nowrap}
    .hamburger{width:44px;height:44px;display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;padding:0;border:1px solid var(--line);border-radius:11px;background:#fff;cursor:pointer}
    .hamburger span{width:21px;height:2px;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;z-index:90;visibility:hidden;opacity:0;background:rgba(3,14,35,.66);transition:.25s}
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;z-index:100;width:min(390px,92vw);overflow-y:auto;background:#fff;transform:translateX(105%);transition:.28s ease;box-shadow:-25px 0 70px rgba(0,0,0,.2)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{min-height:72px;display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--line)}
    .drawer-head>a{padding:8px 12px;border-radius:9px;background:var(--primary);color:#fff;font-size:13px;font-weight:800}
    .drawer-close{margin-left:auto;border:0;background:transparent;font-size:32px;line-height:1;cursor:pointer}
    .drawer-menu{padding:12px 18px 30px}
    .drawer-link,.drawer-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;padding:15px 4px;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;font-weight:800;cursor:pointer}
    .drawer-toggle:after{content:"+";font-size:20px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:7px 0 9px 15px;border-bottom:1px solid var(--line)}
    .drawer-submenu.open{display:grid}
    .drawer-submenu a{padding:9px;color:var(--muted);font-size:14px}
    .drawer-submenu a:hover{color:var(--primary)}
    .target-page-main{min-height:600px}
    .download-page-main .download-hero{position:relative;overflow:hidden;padding:82px 0 72px;color:#fff;background:radial-gradient(circle at 50% 0,#235ec0 0,transparent 38%),linear-gradient(145deg,#061735,#0B3D91 62%,#082960)}
    .download-page-main .download-hero:before,.download-page-main .download-hero:after{content:"";position:absolute;border:1px solid rgba(121,215,255,.2);border-radius:50%}
    .download-page-main .download-hero:before{width:480px;height:480px;top:-290px;left:-120px}
    .download-page-main .download-hero:after{width:620px;height:620px;right:-300px;bottom:-470px}
    .download-page-main .hero-copy{position:relative;z-index:1;max-width:820px;margin:auto;text-align:center}
    .download-page-main .eyebrow{display:inline-flex;padding:7px 13px;border:1px solid rgba(255,255,255,.24);border-radius:999px;background:rgba(255,255,255,.08);color:#c9efff;font-size:13px;font-weight:800}
    .download-page-main h1{margin:18px 0 14px;font-size:clamp(36px,6vw,68px);line-height:1.1;letter-spacing:-1.5px}
    .download-page-main .hero-copy>p{max-width:700px;margin:0 auto;color:#d9e8ff;font-size:18px}
    .download-page-main .hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:28px}
    .download-page-main .primary-btn,.download-page-main .secondary-btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 20px;border-radius:12px;font-weight:900}
    .download-page-main .primary-btn{color:var(--primary);background:#fff}
    .download-page-main .secondary-btn{color:#fff;border:1px solid rgba(255,255,255,.4);background:rgba(255,255,255,.08)}
    .download-page-main .trust-row{display:flex;flex-wrap:wrap;justify-content:center;gap:15px 26px;margin-top:30px;color:#cdeaff;font-size:13px}
    .download-page-main .trust-row span:before{content:"✓";margin-right:7px;color:#7ee6c0;font-weight:900}
    .download-page-main .section{padding:76px 0}
    .download-page-main .section-soft{background:var(--soft)}
    .download-page-main .section-head{max-width:760px;margin:0 auto 34px;text-align:center}
    .download-page-main .section-head span{color:var(--primary);font-size:13px;font-weight:900;text-transform:uppercase;letter-spacing:.08em}
    .download-page-main .section-head h2{margin:8px 0 10px;font-size:clamp(28px,4vw,42px);line-height:1.2}
    .download-page-main .section-head 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;display:flex;flex-direction:column;min-height:340px;padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 10px 35px rgba(23,51,91,.06)}
    .download-page-main .platform-card.featured{border-color:#80a9e7;box-shadow:var(--shadow)}
    .download-page-main .card-label{position:absolute;top:18px;right:18px;padding:5px 9px;border-radius:999px;color:var(--primary);background:var(--primary-soft);font-size:11px;font-weight:900}
    .download-page-main .platform-icon{width:58px;height:58px;display:grid;place-items:center;margin-bottom:22px;border-radius:17px;color:#fff;background:linear-gradient(145deg,var(--primary),#3678dc);font-size:25px;font-weight:900}
    .download-page-main .platform-card h3{margin:0 0 8px;font-size:23px}
    .download-page-main .platform-card p{margin:0;color:var(--muted)}
    .download-page-main .feature-list{display:grid;gap:9px;margin:20px 0 25px;padding:0;list-style:none;color:#44536a;font-size:14px}
    .download-page-main .feature-list li:before{content:"✓";margin-right:8px;color:var(--success);font-weight:900}
    .download-page-main .card-action{margin-top:auto;display:inline-flex;justify-content:center;padding:12px 16px;border-radius:11px;color:#fff;background:var(--primary);font-weight:900}
    .download-page-main .card-action.outline{color:var(--primary);border:1px solid #9cbce9;background:#fff}
    .download-page-main .steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;counter-reset:install}
    .download-page-main .step{position:relative;padding:28px;border-radius:18px;background:#fff;border:1px solid var(--line);counter-increment:install}
    .download-page-main .step:before{content:"0" counter(install);display:block;margin-bottom:17px;color:#8bb7f4;font-size:34px;font-weight:900}
    .download-page-main .step h3{margin:0 0 8px;font-size:20px}
    .download-page-main .step p{margin:0;color:var(--muted)}
    .download-page-main .security-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center;padding:36px;border-radius:26px;color:#fff;background:linear-gradient(135deg,#071a3b,#0B3D91)}
    .download-page-main .security-panel h2{margin:0 0 12px;font-size:34px}
    .download-page-main .security-panel p{margin:0;color:#d7e8ff}
    .download-page-main .security-list{display:grid;gap:12px}
    .download-page-main .security-item{padding:14px 16px;border:1px solid rgba(255,255,255,.15);border-radius:13px;background:rgba(255,255,255,.07)}
    .download-page-main .security-item strong{display:block}
    .download-page-main .security-item span{color:#c9dbf5;font-size:13px}
    .download-page-main .faq-list{max-width:860px;margin:auto;display:grid;gap:12px}
    .download-page-main .faq-item{overflow:hidden;border:1px solid var(--line);border-radius:15px;background:#fff}
    .download-page-main .faq-question{width:100%;display:flex;justify-content:space-between;gap:20px;padding:19px 21px;border:0;background:#fff;text-align:left;font-weight:900;cursor:pointer}
    .download-page-main .faq-question:after{content:"+";font-size:22px;color:var(--primary)}
    .download-page-main .faq-item.open .faq-question:after{content:"−"}
    .download-page-main .faq-answer{display:none;padding:0 21px 20px;color:var(--muted)}
    .download-page-main .faq-item.open .faq-answer{display:block}
    .download-page-main .final-cta{padding:72px 0;background:#edf4ff;text-align:center}
    .download-page-main .final-cta h2{margin:0 0 10px;font-size:38px}
    .download-page-main .final-cta p{max-width:680px;margin:0 auto 24px;color:var(--muted)}
    .download-page-main .final-cta a{display:inline-flex;padding:13px 21px;border-radius:12px;color:#fff;background:var(--primary);font-weight:900}
    .footer{color:#c7d4e7;background:#07152d}
    .footer-main{padding:58px 0 42px}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1.2fr;gap:38px}
    .footer .logo{color:#fff}
    .footer-brand p{max-width:340px;color:#94a8c4}
    .footer-social{margin-top:20px}
    .footer h3{margin:7px 0 17px;color:#fff;font-size:16px}
    .footer-links,.footer-contact{display:grid;gap:10px}
    .footer-links a,.footer-contact a{color:#aebed4}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-contact span{color:#8298b7;font-size:13px}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.1)}
    .footer-bottom-inner{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:13px}
    .footer-legal{display:flex;gap:18px}
    @media(max-width:1050px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-btns{margin-left:auto}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media(max-width:780px){
      .topbar-welcome{display:none}
      .topbar-inner{justify-content:center}
      .download-page-main .platform-grid,.download-page-main .steps{grid-template-columns:1fr}
      .download-page-main .security-panel{grid-template-columns:1fr;padding:28px}
      .download-page-main .section{padding:58px 0}
    }
    @media(max-width:560px){
      .container{width:min(100% - 24px,1180px)}
      .topbar-contact{gap:10px;font-size:11px}
      .header-inner{min-height:68px}
      .header-btns>a{display:none}
      .logo img{width:37px;height:37px}
      .download-page-main .download-hero{padding:64px 0 56px}
      .download-page-main .hero-copy>p{font-size:16px}
      .download-page-main .hero-actions{display:grid}
      .download-page-main .primary-btn,.download-page-main .secondary-btn{width:100%}
      .download-page-main .trust-row{display:grid;justify-content:start;text-align:left}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom-inner{padding:18px 0;align-items:flex-start;flex-direction:column}
    }