:root{
      --theme:#0B3D91;
      --ink:#172033;
      --muted:#687386;
      --line:#dfe5ee;
      --paper:#f6f8fb;
      --white:#fff;
      --amber:#d99a35;
      --warm:#f3e5ce;
      --brown:#4b3021;
      --shadow:0 18px 48px rgba(23,32,51,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{background:var(--brown);color:#f8ead5;font-size:13px}
    .topbar-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-links{display:flex;gap:20px}
    .topbar a{color:#f8ead5;opacity:.9}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:26px}
    .logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
    .logo img{width:34px;height:34px;object-fit:contain;border-radius:9px}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:block;padding:28px 12px;font-size:14px;font-weight:700;color:#3d485a}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%) translateY(8px);width:330px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:0 0 16px 16px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease}
    .mega-menu{width:600px}
    .nav-item:hover>.dropdown-panel,.nav-item:focus-within>.dropdown-panel,.nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
    .panel-title{margin:0 0 14px;color:var(--brown);font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}
    .panel-list{display:grid;gap:9px}
    .panel-list a,.drawer-submenu a{font-size:14px;color:#4c586a}
    .panel-list a:hover,.drawer-submenu a:hover{color:var(--theme)}
    .section-btn{display:inline-flex;margin-top:15px;padding:9px 13px;border-radius:9px;background:var(--theme);color:#fff;font-size:13px;font-weight:700}
    .broker-grid,.video-grid,.tool-grid,.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
    .mega-card{display:grid;grid-template-columns:38px 1fr;column-gap:9px;padding:10px;border:1px solid var(--line);border-radius:11px}
    .mega-card:hover{border-color:var(--amber);background:#fffaf2}
    .mega-card img{width:38px;height:38px;object-fit:cover;border-radius:8px;grid-row:span 2}
    .mega-card strong{font-size:13px;line-height:1.3}
    .mega-card small{font-size:11px;color:var(--muted);line-height:1.35}
    .header-btns{display:flex;align-items:center;gap:10px}
    .member-link,.account-link{font-size:13px;font-weight:800}
    .member-link{color:var(--theme)}
    .account-link{padding:10px 14px;border-radius:9px;background:var(--theme);color:#fff}
    .hamburger{display:none;width:42px;height:40px;border:1px solid var(--line);background:#fff;border-radius:9px;padding:9px;cursor:pointer}
    .hamburger span{display:block;height:2px;background:var(--ink);margin:4px 0;transition:.2s}
    .hamburger.active span:first-child{transform:translateY(6px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:last-child{transform:translateY(-6px) rotate(-45deg)}
    .drawer-overlay{position:fixed;inset:0;background:rgba(11,20,35,.48);opacity:0;visibility:hidden;z-index:40;transition:.2s}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(390px,88vw);height:100vh;background:#fff;z-index:50;transform:translateX(100%);transition:.25s ease;overflow-y:auto}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{min-height:72px;display:flex;align-items:center;gap:14px;padding:16px 20px;border-bottom:1px solid var(--line);font-weight:800}
    .drawer-head span{margin-right:auto}
    .drawer-head a{font-size:13px;color:var(--theme)}
    .drawer-close{border:0;background:transparent;font-size:28px;line-height:1;cursor:pointer;color:var(--muted)}
    .drawer-menu{padding:12px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;font-weight:750;color:var(--ink);cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 14px;border-bottom:1px solid var(--line)}
    .drawer-submenu.open{display:grid;gap:8px}
    .drawer-submenu a{padding:4px 0}
    .video-detail-main{padding:58px 0 80px}
    .video-crumbs{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:24px}
    .video-crumbs a:hover{color:var(--theme)}
    .video-heading{max-width:850px;margin-bottom:26px}
    .video-heading h1{margin:0 0 14px;font-size:clamp(30px,5vw,58px);line-height:1.1;letter-spacing:-.045em;color:var(--brown)}
    .video-meta{display:flex;flex-wrap:wrap;gap:12px 22px;color:var(--muted);font-size:14px}
    .player-shell{background:#111927;border-radius:22px;padding:12px;box-shadow:var(--shadow);overflow:hidden}
    .player-frame{min-height:520px;display:grid;place-items:center;border-radius:14px;background:radial-gradient(circle at 50% 35%,#324969 0,#18263c 42%,#0c1422 100%);position:relative;overflow:hidden}
    .player-frame:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(217,154,53,.16),transparent 38%,rgba(11,61,145,.3))}
    .player-content{position:relative;text-align:center;color:#fff;padding:30px}
    .play-button{width:78px;height:78px;margin:0 auto 22px;border:0;border-radius:50%;background:var(--amber);color:#fff;font-size:28px;cursor:pointer;box-shadow:0 10px 30px rgba(217,154,53,.35)}
    .player-content h2{margin:0 0 8px;font-size:24px}
    .player-content p{margin:0;color:#d9e1ed}
    .video-content-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;margin-top:30px}
    .content-card,.related-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
    .content-card h2,.related-card h2{margin:0 0 14px;color:var(--brown);font-size:22px}
    .video-summary{font-size:17px;color:#4e5b6e}
    .video-body{min-width:0;max-width:100%;overflow-x:auto;margin-top:22px}
    .video-body img,.video-body table,.video-body iframe{max-width:100%}
    .video-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
    .video-tag{padding:6px 10px;background:#f5ead9;border-radius:999px;color:var(--brown);font-size:12px}
    .related-list{display:grid;gap:14px}
    .related-item{display:grid;grid-template-columns:92px 1fr;gap:12px;align-items:start}
    .related-item img{width:92px;height:64px;object-fit:cover;border-radius:9px;background:#e7ebf2}
    .related-item strong{font-size:14px;line-height:1.35}
    .related-item small{display:block;margin-top:5px;color:var(--muted);font-size:12px}
    .more-videos{display:inline-flex;margin-top:20px;color:var(--theme);font-weight:800;font-size:14px}
    .footer{background:var(--brown);color:#f3e5ce;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:35px}
    .footer p{color:#d8c8b4;font-size:14px}
    .footer h3{margin:0 0 14px;color:#fff;font-size:15px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#d8c8b4;font-size:14px}
    .footer-links a:hover,.footer a:hover{color:#fff}
    .footer-bottom{margin-top:35px;padding-top:18px;border-top:1px solid rgba(243,229,206,.2);color:#cbbba7;font-size:13px}
    @media(max-width:1050px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
      .video-content-grid{grid-template-columns:1fr}
      .related-card{padding:22px}
      .related-list{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:700px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{padding:8px 0;align-items:flex-start;flex-direction:column;gap:2px}
      .topbar-links{gap:12px;flex-wrap:wrap}
      .header-inner{min-height:68px;gap:10px}
      .member-link{display:none}
      .account-link{padding:9px 11px}
      .video-detail-main{padding:36px 0 55px}
      .video-heading h1{font-size:36px}
      .player-frame{min-height:300px}
      .content-card{padding:20px}
      .related-list{grid-template-columns:1fr}
      .footer{padding-top:40px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px 18px}
      .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media(max-width:430px){
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
      .header-btns{gap:6px}
      .account-link{font-size:12px}
    }