:root{
      --theme:#0B3D91;
      --theme-dark:#072d6d;
      --theme-soft:#edf4ff;
      --accent:#d81b72;
      --ink:#172033;
      --muted:#667085;
      --line:#e4e8ef;
      --surface:#ffffff;
      --background:#f5f7fa;
      --radius:18px;
      --shadow:0 14px 40px rgba(18,35,67,.09);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--background);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang HK","Noto Sans TC","Microsoft JhengHei",sans-serif;
      line-height:1.65;
    }
    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{
      color:#dce8ff;
      background:#06285f;
      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:20px}
    .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 3px 14px rgba(16,24,40,.04);
    }
    .header-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      gap:28px;
    }
    .logo{
      min-width:190px;
      display:flex;
      align-items:center;
      gap:11px;
      color:var(--theme);
      font-size:18px;
      font-weight:800;
    }
    .logo img{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:10px;
    }
    .main-nav{margin-left:auto;align-self:stretch}
    .nav-list{
      height:100%;
      display:flex;
      align-items:stretch;
      gap:2px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .nav-item{
      position:relative;
      display:flex;
      align-items:stretch;
    }
    .nav-link{
      display:flex;
      align-items:center;
      padding:0 12px;
      color:#344054;
      font-size:14px;
      font-weight:700;
      white-space:nowrap;
    }
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme)}
    .has-arrow::after{
      width:6px;
      height:6px;
      margin:-4px 0 0 7px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      content:"";
      transform:rotate(45deg);
    }
    .dropdown-panel,.mega-menu{
      position:absolute;
      top:100%;
      right:0;
      z-index:60;
      width:330px;
      padding:20px;
      visibility:hidden;
      opacity:0;
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 16px 16px;
      box-shadow:var(--shadow);
      transform:translateY(8px);
      transition:.2s ease;
    }
    .mega-menu{width:min(720px,85vw)}
    .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);
    }
    .panel-title{
      margin:0 0 13px;
      color:var(--theme);
      font-size:13px;
      font-weight:800;
      letter-spacing:.08em;
    }
    .panel-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
    .panel-list a{
      padding:9px 11px;
      overflow:hidden;
      color:#344054;
      background:#f7f9fc;
      border-radius:9px;
      font-size:13px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .panel-list a:hover{color:var(--theme);background:var(--theme-soft)}
    .mega-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
    .mega-card{
      min-width:0;
      display:flex;
      align-items:center;
      gap:11px;
      padding:10px;
      background:#f8fafc;
      border:1px solid transparent;
      border-radius:12px;
    }
    .mega-card:hover{border-color:#bcd0ef;background:var(--theme-soft)}
    .mega-card img{
      width:48px;
      height:48px;
      flex:0 0 48px;
      object-fit:cover;
      background:#fff;
      border-radius:10px;
    }
    .mega-card span{min-width:0;display:grid;gap:2px}
    .mega-card strong,.mega-card small{
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-card strong{font-size:13px}
    .mega-card small{color:var(--muted);font-size:11px}
    .mega-footer{
      display:block;
      margin-top:15px;
      padding-top:13px;
      color:var(--theme);
      border-top:1px solid var(--line);
      font-size:13px;
      font-weight:800;
      text-align:right;
    }
    .header-btns{display:flex;align-items:center;gap:9px}
    .member-link,.account-link{
      padding:9px 13px;
      border-radius:9px;
      font-size:13px;
      font-weight:800;
      white-space:nowrap;
    }
    .member-link{color:var(--theme);background:var(--theme-soft)}
    .account-link{color:#fff;background:var(--theme)}
    .member-link:hover{background:#dbe9ff}
    .account-link:hover{background:var(--theme-dark)}
    .hamburger{
      width:42px;
      height:42px;
      display:none;
      padding:10px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:10px;
      cursor:pointer;
    }
    .hamburger span{
      width:100%;
      height:2px;
      display:block;
      margin:5px 0;
      background:var(--ink);
      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:90;
      visibility:hidden;
      opacity:0;
      background:rgba(5,16,35,.58);
      transition:.25s ease;
    }
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      z-index:100;
      width:min(390px,92vw);
      height:100%;
      overflow-y:auto;
      background:#fff;
      box-shadow:-18px 0 50px rgba(0,0,0,.18);
      transform:translateX(105%);
      transition:.25s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:76px;
      display:flex;
      align-items:center;
      gap:12px;
      padding:15px 20px;
      color:#fff;
      background:var(--theme);
    }
    .drawer-head strong{min-width:0;margin-right:auto}
    .drawer-head a{
      padding:7px 12px;
      color:var(--theme);
      background:#fff;
      border-radius:8px;
      font-size:13px;
      font-weight:800;
    }
    .drawer-close{
      width:38px;
      height:38px;
      padding:0;
      color:#fff;
      background:transparent;
      border:0;
      font-size:30px;
      line-height:1;
      cursor:pointer;
    }
    .drawer-menu{padding:14px 20px 30px}
    .drawer-link,.drawer-toggle{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:14px 4px;
      background:none;
      border:0;
      border-bottom:1px solid var(--line);
      font-weight:750;
      text-align:left;
      cursor:pointer;
    }
    .drawer-toggle::after{
      width:8px;
      height:8px;
      margin-right:5px;
      border-right:2px solid var(--muted);
      border-bottom:2px solid var(--muted);
      content:"";
      transform:rotate(45deg);
      transition:.2s ease;
    }
    .drawer-toggle.active::after{transform:rotate(225deg)}
    .drawer-submenu{
      max-height:0;
      display:grid;
      gap:4px;
      overflow:hidden;
      transition:max-height .3s ease;
    }
    .drawer-submenu.open{max-height:620px;padding:8px 0}
    .drawer-submenu a{
      padding:9px 13px;
      color:var(--muted);
      background:#f7f9fc;
      border-radius:8px;
      font-size:14px;
    }

    .video-page{min-height:700px}
    .video-page .video-intro{
      position:relative;
      overflow:hidden;
      padding:68px 0 56px;
      color:#fff;
      background:
        radial-gradient(circle at 10% 20%,rgba(216,27,114,.35),transparent 25%),
        radial-gradient(circle at 90% 10%,rgba(63,117,214,.42),transparent 27%),
        linear-gradient(135deg,#061d47,#0B3D91 58%,#082d6b);
    }
    .video-page .video-intro::after{
      position:absolute;
      right:-90px;
      bottom:-150px;
      width:390px;
      height:390px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:50%;
      box-shadow:0 0 0 45px rgba(255,255,255,.035),0 0 0 90px rgba(255,255,255,.025);
      content:"";
    }
    .video-page .intro-inner{position:relative;z-index:1;text-align:center}
    .video-page .eyebrow{
      display:inline-flex;
      padding:6px 13px;
      color:#ffd9ec;
      background:rgba(216,27,114,.22);
      border:1px solid rgba(255,255,255,.18);
      border-radius:999px;
      font-size:13px;
      font-weight:800;
    }
    .video-page .video-intro h1{
      max-width:760px;
      margin:14px auto 10px;
      font-size:clamp(34px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.03em;
    }
    .video-page .video-intro p{
      max-width:720px;
      margin:0 auto;
      color:#d8e5fa;
      font-size:17px;
    }
    .video-page .category-strip{
      position:relative;
      z-index:2;
      margin-top:-25px;
    }
    .video-page .category-panel{
      display:flex;
      align-items:center;
      gap:10px;
      padding:14px;
      overflow-x:auto;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      box-shadow:var(--shadow);
      scrollbar-width:thin;
    }
    .video-page .category-label{
      padding:8px 10px;
      color:var(--muted);
      font-size:13px;
      font-weight:800;
      white-space:nowrap;
    }
    .video-page .filter-tag{
      flex:0 0 auto;
      padding:9px 15px;
      color:#344054;
      background:#f3f5f8;
      border:1px solid transparent;
      border-radius:999px;
      font-size:14px;
      font-weight:750;
    }
    .video-page .filter-tag:hover,
    .video-page .filter-tag.active{
      color:#fff;
      background:var(--accent);
    }
    .video-page .video-library{padding:58px 0 80px}
    .video-page .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:25px;
    }
    .video-page .section-head h2{
      margin:0;
      color:var(--ink);
      font-size:30px;
      line-height:1.2;
    }
    .video-page .section-head p{
      max-width:560px;
      margin:6px 0 0;
      color:var(--muted);
    }
    .video-page .section-mark{
      color:var(--accent);
      font-size:13px;
      font-weight:850;
      letter-spacing:.08em;
    }
    .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:var(--surface);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:0 7px 24px rgba(16,24,40,.055);
      transition:.25s ease;
    }
    .video-page .video-card:hover{
      border-color:#bdcce3;
      box-shadow:0 18px 42px rgba(11,61,145,.13);
      transform:translateY(-5px);
    }
    .video-page .video-cover{
      position:relative;
      display:block;
      aspect-ratio:16/9;
      overflow:hidden;
      background:#dfe6f0;
    }
    .video-page .video-cover img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .35s ease;
    }
    .video-page .video-card:hover .video-cover img{transform:scale(1.045)}
    .video-page .play-icon{
      position:absolute;
      top:50%;
      left:50%;
      width:52px;
      height:52px;
      display:grid;
      place-items:center;
      color:#fff;
      background:rgba(216,27,114,.92);
      border:4px solid rgba(255,255,255,.68);
      border-radius:50%;
      box-shadow:0 9px 24px rgba(0,0,0,.24);
      transform:translate(-50%,-50%);
    }
    .video-page .play-icon::after{
      margin-left:3px;
      border-top:7px solid transparent;
      border-bottom:7px solid transparent;
      border-left:11px solid currentColor;
      content:"";
    }
    .video-page .duration{
      position:absolute;
      right:10px;
      bottom:10px;
      padding:3px 8px;
      color:#fff;
      background:rgba(5,12,25,.82);
      border-radius:6px;
      font-size:12px;
      font-weight:800;
    }
    .video-page .video-card-body{padding:20px}
    .video-page .video-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:9px;
      color:var(--muted);
      font-size:12px;
    }
    .video-page .video-type{
      color:var(--accent);
      font-weight:850;
    }
    .video-page .video-card h3{
      margin:0;
      font-size:19px;
      line-height:1.4;
    }
    .video-page .video-card h3 a:hover{color:var(--theme)}
    .video-page .video-summary{
      min-height:52px;
      margin:10px 0 16px;
      display:-webkit-box;
      overflow:hidden;
      color:var(--muted);
      font-size:14px;
      -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:850;
    }
    .video-page .watch-link::after{content:"→";transition:transform .2s ease}
    .video-page .watch-link:hover::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;
      height:42px;
      display:grid;
      place-items:center;
      padding:0 13px;
      color:#344054;
      background:#fff;
      border:1px solid var(--line);
      border-radius:10px;
      font-size:14px;
      font-weight:750;
    }
    .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 .video-note{
      margin-top:45px;
      padding:24px 28px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      background:linear-gradient(120deg,#fff,#edf4ff);
      border:1px solid #d8e5f8;
      border-radius:18px;
    }
    .video-page .video-note strong{display:block;color:var(--theme);font-size:18px}
    .video-page .video-note p{margin:4px 0 0;color:var(--muted)}
    .video-page .note-button{
      flex:0 0 auto;
      padding:11px 17px;
      color:#fff;
      background:var(--theme);
      border-radius:10px;
      font-size:14px;
      font-weight:800;
    }

    .footer{
      padding:58px 0 22px;
      color:#cbd5e1;
      background:#071a38;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr 1fr 1fr 1fr;
      gap:38px;
    }
    .footer h3{
      margin:0 0 15px;
      color:#fff;
      font-size:15px;
    }
    .footer-brand strong{color:#fff;font-size:21px}
    .footer p{margin:8px 0;color:#aebbd0;font-size:14px}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#b9c5d7;font-size:14px}
    .footer-links a:hover{color:#fff}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:20px;
      margin-top:42px;
      padding-top:20px;
      color:#8998af;
      border-top:1px solid rgba(255,255,255,.1);
      font-size:13px;
    }

    @media (max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{gap:16px}
      .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:700px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{padding:8px 0;align-items:flex-start;flex-direction:column;gap:3px}
      .topbar-links{flex-wrap:wrap;gap:3px 14px}
      .header-inner{min-height:68px}
      .logo{min-width:0}
      .logo img{width:38px;height:38px}
      .logo span{max-width:128px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .member-link{display:none}
      .account-link{padding:8px 11px}
      .video-page .video-intro{padding:52px 0 48px}
      .video-page .video-intro h1{font-size:36px}
      .video-page .video-intro p{font-size:15px}
      .video-page .category-strip{margin-top:-20px}
      .video-page .video-library{padding:45px 0 60px}
      .video-page .section-head{align-items:flex-start;flex-direction:column}
      .video-page .section-head h2{font-size:26px}
      .video-page .video-grid{grid-template-columns:1fr}
      .video-page .video-summary{min-height:0}
      .video-page .video-note{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .footer-bottom{flex-direction:column;gap:5px}
    }