:root{
      --theme:#0B3D91;
      --template-theme:{主题色};
      --theme-dark:#06275f;
      --theme-soft:#eaf1fb;
      --ink:#182033;
      --muted:#657087;
      --line:#e2e7f0;
      --surface:#ffffff;
      --page:#f5f7fb;
      --success:#15956f;
      --shadow:0 18px 48px rgba(15,34,70,.12);
      --radius:20px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--page);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","PingFang TC","Microsoft JhengHei",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% - 40px));margin-inline:auto}

    .topbar{
      color:#dce8ff;
      background:#071a3b;
      font-size:13px;
    }
    .topbar-inner{
      min-height:36px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .topbar-contact{display:flex;align-items:center;gap:20px}
    .topbar-contact a{transition:color .2s ease}
    .topbar-contact a:hover{color:#fff}

    .header{
      position:relative;
      z-index:50;
      background:rgba(255,255,255,.97);
      border-bottom:1px solid var(--line);
      box-shadow:0 6px 20px rgba(23,39,74,.04);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:26px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      flex:none;
      gap:10px;
      color:var(--theme-dark);
      font-size:19px;
      font-weight:800;
      letter-spacing:-.02em;
    }
    .logo img{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:11px;
    }
    .main-nav{min-width:0;margin-left:auto}
    .nav-list{
      display:flex;
      align-items:stretch;
      gap:2px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .nav-item{position:relative}
    .nav-link{
      min-height:78px;
      display:flex;
      align-items:center;
      padding:0 11px;
      color:#29334a;
      font-size:14px;
      font-weight:700;
      white-space:nowrap;
      transition:color .2s ease,background .2s ease;
    }
    .nav-link:hover,.nav-item:focus-within>.nav-link{
      color:var(--theme);
      background:#f5f8fd;
    }
    .has-arrow::after{
      width:6px;
      height:6px;
      margin-left:7px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      content:"";
      transform:rotate(45deg) translateY(-2px);
    }
    .dropdown-panel,.mega-menu{
      position:absolute;
      top:100%;
      z-index:60;
      visibility:hidden;
      opacity:0;
      pointer-events:none;
      transform:translateY(10px);
      transition:opacity .2s ease,transform .2s ease,visibility .2s;
    }
    .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:translateY(0);
    }
    .dropdown-panel{
      left:0;
      width:310px;
      padding:12px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 16px 16px;
      box-shadow:var(--shadow);
    }
    .dropdown-panel>a{
      display:block;
      padding:10px 12px;
      border-radius:9px;
      color:#354057;
      font-size:14px;
    }
    .dropdown-panel>a:hover{color:var(--theme);background:var(--theme-soft)}
    .dropdown-panel .dropdown-all{
      margin-top:7px;
      color:var(--theme);
      border-top:1px solid var(--line);
      border-radius:0;
      font-weight:800;
    }
    .mega-menu{
      left:50%;
      width:min(820px,calc(100vw - 40px));
      padding:20px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 20px 20px;
      box-shadow:var(--shadow);
      transform:translate(-50%,10px);
    }
    .nav-item:hover>.mega-menu,
    .nav-item:focus-within>.mega-menu{transform:translate(-50%,0)}
    .mega-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:14px;
      padding-bottom:12px;
      border-bottom:1px solid var(--line);
    }
    .mega-head strong{color:var(--theme-dark);font-size:18px}
    .mega-head span{color:var(--muted);font-size:13px}
    .mega-categories{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:15px;
    }
    .mega-categories a{
      padding:6px 11px;
      color:var(--theme);
      background:var(--theme-soft);
      border-radius:999px;
      font-size:13px;
      font-weight:700;
    }
    .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:10px;
      padding:10px;
      border:1px solid var(--line);
      border-radius:12px;
      transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
    }
    .mega-card:hover{
      border-color:#9eb8e3;
      box-shadow:0 8px 18px rgba(11,61,145,.09);
      transform:translateY(-2px);
    }
    .mega-card>img{
      width:48px;
      height:48px;
      flex:none;
      object-fit:cover;
      border-radius:10px;
      background:#edf2fa;
    }
    .mega-card-body{min-width:0;display:grid;gap:2px}
    .mega-card-body strong{
      overflow:hidden;
      font-size:14px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-card-body small{
      overflow:hidden;
      color:var(--muted);
      font-size:11px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-footer{
      display:block;
      margin-top:14px;
      padding-top:12px;
      color:var(--theme);
      border-top:1px solid var(--line);
      font-size:14px;
      font-weight:800;
      text-align:right;
    }
    .header-btns{
      display:flex;
      align-items:center;
      flex:none;
      gap:10px;
    }
    .header-btns>form,.header-btns>.member-entry{margin:0}
    .account-btn{
      padding:10px 15px;
      color:#fff;
      background:var(--theme);
      border-radius:10px;
      font-size:14px;
      font-weight:800;
      box-shadow:0 8px 18px rgba(11,61,145,.2);
    }
    .account-btn:hover{background:var(--theme-dark)}
    .hamburger{
      width:43px;
      height:43px;
      display:none;
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
      padding:0;
      background:#fff;
      border:1px solid var(--line);
      border-radius:11px;
      cursor:pointer;
    }
    .hamburger span{
      width:20px;
      height:2px;
      background:var(--ink);
      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:90;
      visibility:hidden;
      opacity:0;
      background:rgba(5,13,30,.58);
      backdrop-filter:blur(3px);
      transition:opacity .25s ease,visibility .25s;
    }
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      z-index:100;
      width:min(390px,90vw);
      height:100dvh;
      overflow-y:auto;
      background:#fff;
      box-shadow:-20px 0 50px rgba(3,15,39,.22);
      transform:translateX(105%);
      transition:transform .28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:76px;
      display:flex;
      align-items:center;
      gap:10px;
      padding:14px 18px;
      border-bottom:1px solid var(--line);
    }
    .drawer-head>a{
      padding:8px 12px;
      color:#fff;
      background:var(--theme);
      border-radius:9px;
      font-size:14px;
      font-weight:800;
    }
    .drawer-close{
      width:40px;
      height:40px;
      margin-left:auto;
      padding:0;
      color:#465169;
      background:#f1f4f9;
      border:0;
      border-radius:50%;
      font-size:27px;
      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:13px 4px;
      background:transparent;
      border:0;
      border-bottom:1px solid var(--line);
      font-weight:800;
      text-align:left;
      cursor:pointer;
    }
    .drawer-toggle::after{
      content:"+";
      color:var(--theme);
      font-size:20px;
      font-weight:500;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      max-height:0;
      overflow:hidden;
      background:#f7f9fc;
      transition:max-height .3s ease;
    }
    .drawer-submenu.open{max-height:800px}
    .drawer-submenu a{
      display:block;
      padding:10px 14px;
      color:#526078;
      border-bottom:1px solid #e8ecf3;
      font-size:14px;
    }
    .drawer-submenu a:hover{color:var(--theme)}

    .video-page{min-height:620px}
    .video-page .video-banner{
      position:relative;
      overflow:hidden;
      padding:72px 0 68px;
      color:#fff;
      background:
        radial-gradient(circle at 16% 20%,rgba(108,146,224,.4),transparent 30%),
        radial-gradient(circle at 85% 75%,rgba(104,73,170,.34),transparent 32%),
        linear-gradient(135deg,#061b42 0%,#0B3D91 56%,#241b4b 100%);
    }
    .video-page .video-banner::before,
    .video-page .video-banner::after{
      position:absolute;
      border:1px solid rgba(255,255,255,.15);
      border-radius:50%;
      content:"";
    }
    .video-page .video-banner::before{
      width:360px;
      height:360px;
      top:-210px;
      right:8%;
    }
    .video-page .video-banner::after{
      width:240px;
      height:240px;
      bottom:-160px;
      left:7%;
    }
    .video-page .banner-content{
      position:relative;
      z-index:1;
      max-width:760px;
      margin-inline:auto;
      text-align:center;
    }
    .video-page .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:15px;
      padding:7px 12px;
      color:#dce9ff;
      background:rgba(255,255,255,.11);
      border:1px solid rgba(255,255,255,.22);
      border-radius:999px;
      font-size:13px;
      font-weight:800;
      letter-spacing:.08em;
    }
    .video-page .eyebrow::before{
      width:8px;
      height:8px;
      background:#8fbcff;
      border-radius:50%;
      box-shadow:0 0 0 5px rgba(143,188,255,.15);
      content:"";
    }
    .video-page h1{
      margin:0;
      font-size:clamp(36px,6vw,64px);
      line-height:1.12;
      letter-spacing:-.04em;
    }
    .video-page .banner-content p{
      max-width:650px;
      margin:20px auto 0;
      color:#dbe6fa;
      font-size:17px;
    }
    .video-page .video-category-bar{
      position:relative;
      z-index:2;
      margin-top:-25px;
    }
    .video-page .category-shell{
      display:flex;
      align-items:center;
      gap:10px;
      overflow-x:auto;
      padding:14px;
      background:rgba(255,255,255,.96);
      border:1px solid rgba(222,229,241,.9);
      border-radius:16px;
      box-shadow:0 18px 42px rgba(17,37,76,.13);
      scrollbar-width:thin;
    }
    .video-page .category-label{
      flex:none;
      padding:9px 12px;
      color:var(--muted);
      font-size:13px;
      font-weight:800;
    }
    .video-page .category-shell a{
      flex:none;
      padding:9px 14px;
      color:#344158;
      background:#f3f6fa;
      border:1px solid #e5eaf2;
      border-radius:999px;
      font-size:14px;
      font-weight:800;
      transition:all .2s ease;
    }
    .video-page .category-shell a:hover{
      color:#fff;
      background:var(--theme);
      border-color:var(--theme);
    }
    .video-page .video-library{padding:66px 0 84px}
    .video-page .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:26px;
    }
    .video-page .section-head h2{
      margin:0;
      color:#16233a;
      font-size:30px;
      line-height:1.25;
      letter-spacing:-.025em;
    }
    .video-page .section-head p{
      max-width:620px;
      margin:7px 0 0;
      color:var(--muted);
    }
    .video-page .library-note{
      flex:none;
      padding:8px 12px;
      color:var(--theme);
      background:var(--theme-soft);
      border-radius:999px;
      font-size:13px;
      font-weight:800;
    }
    .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 var(--line);
      border-radius:var(--radius);
      box-shadow:0 10px 28px rgba(22,38,72,.06);
      transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
    }
    .video-page .video-card:hover{
      border-color:#aac0e5;
      box-shadow:0 20px 40px rgba(11,61,145,.13);
      transform:translateY(-6px);
    }
    .video-page .video-cover{
      position:relative;
      aspect-ratio:16/9;
      overflow:hidden;
      background:#dce5f3;
    }
    .video-page .video-cover img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .4s ease;
    }
    .video-page .video-card:hover .video-cover img{transform:scale(1.045)}
    .video-page .play-badge{
      position:absolute;
      top:50%;
      left:50%;
      width:54px;
      height:54px;
      display:grid;
      place-items:center;
      color:#fff;
      background:rgba(11,61,145,.9);
      border:5px solid rgba(255,255,255,.28);
      border-radius:50%;
      box-shadow:0 10px 25px rgba(0,0,0,.25);
      transform:translate(-50%,-50%);
    }
    .video-page .play-badge::before{
      margin-left:3px;
      border-top:8px solid transparent;
      border-bottom:8px solid transparent;
      border-left:13px solid #fff;
      content:"";
    }
    .video-page .duration{
      position:absolute;
      right:11px;
      bottom:11px;
      padding:4px 8px;
      color:#fff;
      background:rgba(9,14,25,.82);
      border-radius:7px;
      font-size:12px;
      font-weight:800;
    }
    .video-page .video-body{padding:19px 19px 21px}
    .video-page .video-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-bottom:9px;
      color:var(--theme);
      font-size:12px;
      font-weight:800;
    }
    .video-page .video-meta span:first-child{
      padding:4px 8px;
      background:var(--theme-soft);
      border-radius:999px;
    }
    .video-page .video-body h3{
      margin:0;
      color:#182239;
      font-size:19px;
      line-height:1.4;
    }
    .video-page .video-body p{
      min-height:3.2em;
      margin:10px 0 17px;
      overflow:hidden;
      color:var(--muted);
      display:-webkit-box;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
    }
    .video-page .watch-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--theme);
      font-size:14px;
      font-weight:900;
    }
    .video-page .watch-link::after{
      content:"→";
      transition:transform .2s ease;
    }
    .video-page .video-card:hover .watch-link::after{transform:translateX(4px)}
    .video-page .pagination{
      display:flex;
      flex-wrap:wrap;
      justify-content:center;
      gap:8px;
      margin-top:42px;
    }
    .video-page .pagination a{
      min-width:42px;
      min-height:42px;
      display:grid;
      place-items:center;
      padding:7px 12px;
      color:#40506a;
      background:#fff;
      border:1px solid var(--line);
      border-radius:10px;
      font-size:14px;
      font-weight:800;
      transition:all .2s ease;
    }
    .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:68px;
      padding:34px;
      color:#fff;
      background:linear-gradient(135deg,#0B3D91,#06275f);
      border-radius:24px;
      box-shadow:0 18px 42px rgba(11,61,145,.2);
      text-align:center;
    }
    .video-page .learning-cta h2{margin:0;font-size:28px}
    .video-page .learning-cta p{
      max-width:680px;
      margin:10px auto 20px;
      color:#dbe7fb;
    }
    .video-page .learning-cta a{
      display:inline-flex;
      padding:11px 18px;
      color:var(--theme-dark);
      background:#fff;
      border-radius:10px;
      font-weight:900;
    }

    .footer{
      color:#cdd7e8;
      background:#07172f;
    }
    .footer-main{
      display:grid;
      grid-template-columns:1.5fr 1fr 1fr 1.1fr;
      gap:44px;
      padding:64px 0 48px;
    }
    .footer .logo{color:#fff}
    .footer-brand p{
      max-width:380px;
      margin:18px 0 0;
      color:#aebbd0;
      font-size:14px;
    }
    .footer h3{
      margin:4px 0 16px;
      color:#fff;
      font-size:16px;
    }
    .footer-links,.footer-contact{display:grid;gap:9px}
    .footer-links a,.footer-contact a{
      color:#b8c4d7;
      font-size:14px;
      transition:color .2s ease;
    }
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-social{margin-top:7px}
    .footer-bottom{
      min-height:70px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      color:#8f9db3;
      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}
      .header-btns{margin-left:auto}
      .video-page .video-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-main{grid-template-columns:repeat(2,minmax(0,1fr))}
    }

    @media (max-width:720px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-welcome{display:none}
      .topbar-inner{justify-content:center}
      .topbar-contact{width:100%;justify-content:space-between;gap:12px}
      .topbar-contact a{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .header-btns>.account-btn{display:none}
      .logo span{max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .video-page .video-banner{padding:56px 0 58px}
      .video-page .banner-content p{font-size:15px}
      .video-page .video-category-bar{margin-top:-18px}
      .video-page .video-library{padding:52px 0 64px}
      .video-page .section-head{display:block}
      .video-page .library-note{display:inline-flex;margin-top:14px}
      .video-page .video-grid{grid-template-columns:1fr}
      .video-page .video-body p{min-height:auto}
      .video-page .learning-cta{margin-top:48px;padding:28px 20px}
      .footer-main{grid-template-columns:1fr;gap:30px;padding:48px 0 36px}
      .footer-bottom{align-items:flex-start;flex-direction:column;justify-content:center;padding:18px 0}
    }

    @media (max-width:430px){
      .topbar-contact{font-size:11px}
      .logo img{width:38px;height:38px}
      .header-btns{gap:6px}
      .video-page .video-body{padding:17px}
      .video-page .learning-cta h2{font-size:24px}
    }