:root{
      --theme:#0B3D91;
      --theme-dark:#072b68;
      --theme-light:#eaf1ff;
      --ink:#101828;
      --muted:#667085;
      --line:#e4e7ec;
      --surface:#ffffff;
      --soft:#f5f7fb;
      --gold:#c89b42;
      --danger:#c92a35;
      --shadow:0 18px 48px rgba(16,24,40,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:#fff;
      font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;
      line-height:1.65;
      -webkit-font-smoothing:antialiased;
    }
    body:has(.mobile-drawer.open){overflow:hidden}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{
      position:relative;
      z-index:80;
      color:#d9e5ff;
      background:#061d47;
      font-size:13px;
    }
    .topbar .container{
      min-height:36px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .topbar a{margin-left:22px;color:#fff}
    .topbar a:hover{color:#ffd98c}

    .header{
      position:relative;
      z-index:70;
      background:rgba(255,255,255,.98);
      border-bottom:1px solid rgba(11,61,145,.12);
      box-shadow:0 5px 22px rgba(16,24,40,.05);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:24px;
    }
    .logo{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:11px;
      color:var(--theme);
      font-size:19px;
      font-weight:800;
      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%;
      margin:0;
      padding:0;
      display:flex;
      justify-content:center;
      list-style:none;
    }
    .nav-item{
      position:relative;
      display:flex;
      align-items:center;
    }
    .nav-link{
      height:100%;
      padding:0 13px;
      display:flex;
      align-items:center;
      color:#26334d;
      font-size:15px;
      font-weight:650;
      white-space:nowrap;
      transition:.2s ease;
    }
    .nav-link:hover,.nav-item:focus-within>.nav-link{
      color:var(--theme);
      background:var(--theme-light);
    }
    .has-arrow::after{
      width:6px;
      height:6px;
      margin:-4px 0 0 8px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      content:"";
      transform:rotate(45deg);
    }
    .dropdown-panel,.mega-menu{
      position:absolute;
      top:100%;
      left:50%;
      visibility:hidden;
      opacity:0;
      transform:translate(-50%,10px);
      background:#fff;
      border:1px solid #dce4f1;
      border-radius:0 0 18px 18px;
      box-shadow:var(--shadow);
      pointer-events:none;
      transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
    }
    .dropdown-panel::before,.mega-menu::before{
      position:absolute;
      right:0;
      bottom:100%;
      left:0;
      height:8px;
      content:"";
    }
    .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;
      transform:translate(-50%,0);
      pointer-events:auto;
    }
    .dropdown-panel{
      width:310px;
      padding:20px;
    }
    .dropdown-panel>a:not(.mega-footer){
      display:block;
      padding:10px 0;
      overflow:hidden;
      color:#344054;
      border-bottom:1px solid #edf0f5;
      font-size:14px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .dropdown-panel>a:hover{color:var(--theme)}
    .mega-menu{
      width:min(900px,calc(100vw - 48px));
      padding:22px;
    }
    .nav-item:nth-child(4) .mega-menu{width:min(980px,calc(100vw - 48px))}
    .mega-title{
      margin:0 0 12px;
      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:12px;
    }
    .mega-card{
      min-width:0;
      min-height:92px;
      padding:12px;
      display:grid;
      grid-template-columns:54px minmax(0,1fr);
      align-content:center;
      column-gap:12px;
      color:#344054;
      background:#f8faff;
      border:1px solid #e7ecf5;
      border-radius:12px;
      transition:.2s ease;
    }
    .mega-card:hover{
      color:var(--theme);
      border-color:#a9c2ee;
      transform:translateY(-2px);
    }
    .mega-card img{
      width:54px;
      height:54px;
      grid-row:1/4;
      object-fit:cover;
      background:#fff;
      border-radius:9px;
    }
    .mega-card strong{
      min-width:0;
      overflow:hidden;
      font-size:14px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-card small{
      min-width:0;
      display:block;
      overflow:hidden;
      color:#667085;
      font-size:11px;
      line-height:1.45;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-links{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
    }
    .mega-links a{
      padding:7px 12px;
      color:#344054;
      background:#f4f7fc;
      border:1px solid #e1e7f0;
      border-radius:999px;
      font-size:13px;
    }
    .mega-links a:hover{
      color:#fff;
      background:var(--theme);
      border-color:var(--theme);
    }
    .mega-footer{
      margin-top:16px;
      padding:10px 13px;
      display:block;
      color:var(--theme);
      background:var(--theme-light);
      border-radius:10px;
      font-size:13px;
      font-weight:750;
      text-align:center;
    }
    .header-btns{
      flex:0 0 auto;
      display:flex;
      align-items:center;
      gap:9px;
    }
    .member-link,.open-account{
      min-height:38px;
      padding:8px 13px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:9px;
      font-size:14px;
      font-weight:700;
    }
    .member-link{color:var(--theme);border:1px solid #b8c9e7}
    .open-account{color:#fff;background:var(--theme)}
    .member-link:hover{background:var(--theme-light)}
    .open-account:hover{background:var(--theme-dark)}
    .hamburger{
      width:42px;
      height:42px;
      padding:9px;
      display:none;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      gap:5px;
      color:var(--ink);
      background:#fff;
      border:1px solid #d7dfec;
      border-radius:9px;
      cursor:pointer;
    }
    .hamburger span{
      width:20px;
      height:2px;
      display:block;
      background:currentColor;
      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;
      z-index:98;
      inset:0;
      visibility:hidden;
      opacity:0;
      background:rgba(3,13,32,.62);
      transition:.25s ease;
    }
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{
      position:fixed;
      z-index:99;
      top:0;
      right:0;
      width:min(390px,90vw);
      height:100dvh;
      overflow-y:auto;
      color:#172033;
      background:#fff;
      box-shadow:-24px 0 60px rgba(0,0,0,.2);
      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 12px;
      border:1px solid rgba(255,255,255,.35);
      border-radius:8px;
      font-size:14px;
    }
    .drawer-close{
      width:38px;
      height:38px;
      margin-left:auto;
      color:#fff;
      background:rgba(255,255,255,.12);
      border:0;
      border-radius:8px;
      font-size:28px;
      line-height:1;
      cursor:pointer;
    }
    .drawer-menu{padding:14px 18px 30px}
    .drawer-link,.drawer-toggle{
      width:100%;
      min-height:48px;
      padding:12px 4px;
      display:flex;
      align-items:center;
      color:#26334d;
      background:none;
      border:0;
      border-bottom:1px solid #e8ecf2;
      font-weight:750;
      text-align:left;
      cursor:pointer;
    }
    .drawer-toggle::after{
      margin-left:auto;
      content:"+";
      color:var(--theme);
      font-size:20px;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      max-height:0;
      overflow:hidden;
      background:#f7f9fc;
      transition:max-height .3s ease;
    }
    .drawer-submenu.open{
      max-height:660px;
      border-bottom:1px solid #e2e8f0;
    }
    .drawer-submenu a{
      padding:10px 15px;
      display:block;
      color:#536076;
      border-bottom:1px dashed #dce3ee;
      font-size:14px;
    }
    .drawer-submenu a:hover{color:var(--theme);background:#edf3ff}

    .video-page{
      min-height:680px;
      overflow:hidden;
      background:
        radial-gradient(circle at 86% 10%,rgba(11,61,145,.12),transparent 30%),
        linear-gradient(180deg,#f5f8fd 0,#fff 420px);
    }
    .video-page .video-masthead{
      position:relative;
      padding:64px 0 54px;
      color:#fff;
      overflow:hidden;
      background:
        linear-gradient(120deg,rgba(4,17,43,.98),rgba(11,61,145,.94)),
        #071b40;
    }
    .video-page .video-masthead::before{
      position:absolute;
      inset:0;
      content:"";
      opacity:.24;
      background-image:
        linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),
        linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,#000,transparent);
    }
    .video-page .video-masthead::after{
      position:absolute;
      right:-110px;
      bottom:-180px;
      width:470px;
      height:470px;
      content:"";
      border:1px solid rgba(211,170,88,.42);
      border-radius:50%;
      box-shadow:
        0 0 0 42px rgba(211,170,88,.07),
        0 0 0 88px rgba(211,170,88,.045);
    }
    .video-page .masthead-inner{
      position:relative;
      z-index:1;
      max-width:850px;
      text-align:center;
    }
    .video-page .breadcrumb{
      margin-bottom:18px;
      display:flex;
      justify-content:center;
      align-items:center;
      gap:8px;
      color:#bed0ef;
      font-size:14px;
    }
    .video-page .breadcrumb a:hover{color:#fff}
    .video-page .eyebrow{
      margin:0 0 10px;
      color:#f0c977;
      font-size:13px;
      font-weight:800;
      letter-spacing:.18em;
    }
    .video-page .video-masthead h1{
      margin:0;
      font-size:clamp(34px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.03em;
    }
    .video-page .video-masthead p:last-child{
      max-width:690px;
      margin:18px auto 0;
      color:#d8e3f8;
      font-size:17px;
    }
    .video-page .category-bar{
      position:relative;
      z-index:3;
      margin-top:-24px;
    }
    .video-page .category-panel{
      padding:18px;
      display:flex;
      align-items:center;
      gap:14px;
      background:#fff;
      border:1px solid #e0e6ef;
      border-radius:16px;
      box-shadow:0 14px 40px rgba(17,38,76,.11);
    }
    .video-page .category-label{
      flex:0 0 auto;
      padding:7px 11px;
      color:#fff;
      background:var(--theme);
      border-radius:8px;
      font-size:13px;
      font-weight:800;
    }
    .video-page .category-links{
      min-width:0;
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .video-page .category-links a{
      padding:7px 12px;
      color:#475467;
      background:#f5f7fa;
      border:1px solid transparent;
      border-radius:999px;
      font-size:14px;
      transition:.2s ease;
    }
    .video-page .category-links a:hover{
      color:var(--theme);
      background:#edf3ff;
      border-color:#b9cae8;
    }
    .video-page .video-library{padding:64px 0 76px}
    .video-page .section-heading{
      margin-bottom:28px;
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
    }
    .video-page .section-heading h2{
      margin:0 0 5px;
      color:#17233b;
      font-size:30px;
      line-height:1.25;
    }
    .video-page .section-heading p{margin:0;color:var(--muted)}
    .video-page .safe-note{
      flex:0 0 auto;
      padding:8px 12px;
      color:#755514;
      background:#fff7e7;
      border:1px solid #f0d38e;
      border-radius:9px;
      font-size:13px;
    }
    .video-page .video-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:24px;
    }
    .video-page .video-card{
      min-width:0;
      overflow:hidden;
      background:#fff;
      border:1px solid #e0e6ef;
      border-radius:18px;
      box-shadow:0 10px 28px rgba(16,24,40,.07);
      transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    }
    .video-page .video-card:hover{
      border-color:#a7bde3;
      box-shadow:0 20px 42px rgba(11,61,145,.14);
      transform:translateY(-6px);
    }
    .video-page .video-cover{
      position:relative;
      aspect-ratio:16/9;
      overflow:hidden;
      background:#0a1b3b;
    }
    .video-page .video-cover img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease;
    }
    .video-page .video-card:hover .video-cover img{transform:scale(1.045)}
    .video-page .video-cover::after{
      position:absolute;
      inset:auto 0 0;
      height:48%;
      content:"";
      background:linear-gradient(transparent,rgba(3,11,27,.78));
    }
    .video-page .play-icon{
      position:absolute;
      z-index:2;
      top:50%;
      left:50%;
      width:56px;
      height:56px;
      display:grid;
      place-items:center;
      color:#fff;
      background:rgba(201,42,53,.94);
      border:3px solid rgba(255,255,255,.84);
      border-radius:50%;
      box-shadow:0 8px 24px rgba(0,0,0,.3);
      transform:translate(-50%,-50%);
    }
    .video-page .play-icon::before{
      margin-left:4px;
      content:"";
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      border-left:13px solid currentColor;
    }
    .video-page .duration{
      position:absolute;
      z-index:2;
      right:12px;
      bottom:11px;
      padding:3px 8px;
      color:#fff;
      background:rgba(4,12,29,.82);
      border-radius:5px;
      font-size:12px;
      font-weight:700;
    }
    .video-page .video-card-body{padding:20px}
    .video-page .video-type{
      margin-bottom:9px;
      display:flex;
      align-items:center;
      gap:8px;
      color:var(--theme);
      font-size:12px;
      font-weight:800;
      letter-spacing:.08em;
    }
    .video-page .video-type::before{
      width:18px;
      height:2px;
      content:"";
      background:var(--gold);
    }
    .video-page .video-card h3{
      margin:0;
      color:#18243a;
      font-size:19px;
      line-height:1.45;
    }
    .video-page .video-card h3 a:hover{color:var(--theme)}
    .video-page .video-summary{
      min-height:52px;
      margin:11px 0 17px;
      display:-webkit-box;
      overflow:hidden;
      color:#667085;
      font-size:14px;
      line-height:1.75;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
    }
    .video-page .watch-link{
      display:inline-flex;
      align-items:center;
      gap:7px;
      color:var(--theme);
      font-size:14px;
      font-weight:800;
    }
    .video-page .watch-link::after{
      content:"→";
      transition:transform .2s ease;
    }
    .video-page .watch-link:hover::after{transform:translateX(4px)}
    .video-page .pagination{
      margin-top:44px;
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:8px;
    }
    .video-page .pagination a{
      min-width:42px;
      min-height:42px;
      padding:8px 13px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:#344054;
      background:#fff;
      border:1px solid #dce3ed;
      border-radius:9px;
      font-size:14px;
      font-weight:700;
    }
    .video-page .pagination a:hover,
    .video-page .pagination a.active,
    .video-page .pagination a.current{
      color:#fff;
      background:var(--theme);
      border-color:var(--theme);
    }
    .video-page .learning-cta{
      margin-top:64px;
      padding:32px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:28px;
      color:#fff;
      background:linear-gradient(115deg,#071b40,var(--theme));
      border-radius:20px;
      box-shadow:0 20px 42px rgba(11,61,145,.18);
    }
    .video-page .learning-cta h2{margin:0 0 7px;font-size:25px}
    .video-page .learning-cta p{max-width:680px;margin:0;color:#d8e4f8}
    .video-page .cta-actions{
      flex:0 0 auto;
      display:flex;
      gap:10px;
    }
    .video-page .cta-actions a{
      padding:11px 17px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:#0b285f;
      background:#fff;
      border-radius:9px;
      font-size:14px;
      font-weight:800;
    }
    .video-page .cta-actions a:last-child{
      color:#fff;
      background:transparent;
      border:1px solid rgba(255,255,255,.45);
    }

    .footer{
      padding:60px 0 0;
      color:#b8c5da;
      background:#06152f;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.55fr 1fr 1fr 1.2fr;
      gap:44px;
    }
    .footer h3,.footer h4{margin:0 0 16px;color:#fff}
    .footer h3{font-size:22px}
    .footer h4{font-size:15px}
    .footer p{margin:0 0 14px;font-size:14px}
    .footer-grid>div>a{
      margin:0 0 9px;
      display:block;
      color:#b8c5da;
      font-size:14px;
    }
    .footer a:hover{color:#fff}
    .social-links{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
    }
    .social-links a{
      padding:7px 10px;
      color:#dce7fa;
      background:rgba(255,255,255,.07);
      border-radius:7px;
      font-size:13px;
    }
    .footer-bottom{
      margin-top:42px;
      min-height:66px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      color:#8fa0ba;
      border-top:1px solid rgba(255,255,255,.11);
      font-size:13px;
    }

    @media (max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-inner{min-height:70px}
      .header-btns{margin-left:auto}
      .video-page .video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:720px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{
        padding:7px 0;
        align-items:flex-start;
        flex-direction:column;
        gap:2px;
      }
      .topbar a{margin:0 14px 0 0}
      .member-link{display:none}
      .logo span{max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .video-page .video-masthead{padding:48px 0 46px}
      .video-page .video-masthead h1{font-size:36px}
      .video-page .video-masthead p:last-child{font-size:15px}
      .video-page .category-panel{align-items:flex-start;flex-direction:column}
      .video-page .video-library{padding:48px 0 60px}
      .video-page .section-heading{align-items:flex-start;flex-direction:column}
      .video-page .section-heading h2{font-size:25px}
      .video-page .video-grid{grid-template-columns:1fr}
      .video-page .video-summary{min-height:auto}
      .video-page .learning-cta{
        padding:26px 22px;
        align-items:flex-start;
        flex-direction:column;
      }
      .video-page .cta-actions{width:100%;flex-wrap:wrap}
      .video-page .cta-actions a{flex:1}
      .footer{padding-top:44px}
      .footer-grid{grid-template-columns:1fr;gap:30px}
      .footer-bottom{
        padding:18px 0;
        align-items:flex-start;
        flex-direction:column;
        gap:5px;
      }
    }
    @media (max-width:420px){
      .open-account{padding:7px 10px}
      .logo img{width:36px;height:36px}
      .video-page .video-masthead h1{font-size:31px}
      .video-page .category-links a{font-size:13px}
    }