:root{--primary:#0B3D91;--primary-dark:#072c6b;--accent:#18b96b;--ink:#152033;--muted:#687386;--line:#e3e8f0;--soft:#f4f7fb;--white:#fff;--shadow:0 18px 50px rgba(15,35,70,.12)}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;background:#fff;line-height:1.65}
    body.drawer-lock{overflow:hidden}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{background:#07162f;color:#dce7fa;font-size:13px}
    .topbar-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-contact{display:flex;align-items:center;gap:22px}
    .topbar-contact a:hover{color:#fff}

    .header{position:relative;z-index:100;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 5px 20px rgba(15,35,70,.05)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:24px}
    .logo{display:inline-flex;align-items:center;gap:10px;min-width:max-content;font-size:19px;font-weight:800;color:var(--primary)}
    .logo img{width:42px;height:42px;object-fit:contain}
    .main-nav{margin-left:auto;height:78px}
    .nav-list{display:flex;align-items:stretch;height:100%;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 13px;font-size:15px;font-weight:600;white-space:nowrap;transition:.2s}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--primary);background:#f5f8fd}
    .has-arrow:after{content:"";width:6px;height:6px;margin-left:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;visibility:hidden;opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}
    .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;pointer-events:auto;transform:none}
    .dropdown-panel{left:0;width:330px;padding:20px;border-radius:0 0 14px 14px}
    .dropdown-title{margin-bottom:12px;color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.04em}
    .dropdown-article{display:block;padding:9px 0;border-bottom:1px solid #edf0f5;font-size:14px}
    .dropdown-article:hover,.dropdown-more:hover{color:var(--primary)}
    .dropdown-more{display:block;margin-top:13px;color:var(--primary);font-size:13px;font-weight:700}
    .mega-menu{left:50%;width:min(960px,calc(100vw - 40px));padding:24px;border-radius:0 0 18px 18px;transform:translate(-50%,8px)}
    .nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{transform:translate(-50%,0)}
    .mega-products,.mega-video{width:min(1060px,calc(100vw - 40px))}
    .mega-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line)}
    .mega-title{font-size:18px;font-weight:800;color:#102241}
    .mega-note{margin-top:3px;color:var(--muted);font-size:13px}
    .text-link,.mega-footer{color:var(--primary);font-size:13px;font-weight:700}
    .mega-grid{display:grid;gap:12px}
    .broker-mega-grid,.tools-mega-grid{grid-template-columns:repeat(3,1fr)}
    .mega-broker-card,.mega-tool{display:flex;align-items:center;gap:12px;padding:13px;border:1px solid var(--line);border-radius:12px;transition:.2s}
    .mega-broker-card:hover,.mega-tool:hover,.mega-video-card:hover,.mega-product-card:hover{border-color:#9ab4dd;box-shadow:0 9px 24px rgba(11,61,145,.1);transform:translateY(-2px)}
    .mega-broker-card img,.mega-tool img{width:42px;height:42px;object-fit:contain;border-radius:9px}
    .mega-broker-name,.mega-tool strong{font-size:14px;font-weight:800}
    .mega-broker-rating{color:#d88400;font-size:12px}
    .mega-broker-meta,.mega-tool small{display:block;color:var(--muted);font-size:11px}
    .mega-footer{display:block;margin-top:17px;padding-top:14px;border-top:1px solid var(--line);text-align:right}
    .video-mega-layout,.product-mega-layout{display:grid;grid-template-columns:190px minmax(0,1fr);gap:22px}
    .mega-categories{display:flex;flex-direction:column;gap:5px}
    .mega-categories a{padding:8px 10px;border-radius:7px;color:#435069;font-size:13px}
    .mega-categories a:hover{color:var(--primary);background:#edf4ff}
    .mega-video-grid,.mega-product-grid{grid-template-columns:repeat(3,1fr)}
    .mega-video-card,.mega-product-card{min-width:0;overflow:hidden;border:1px solid var(--line);border-radius:11px;transition:.2s}
    .mega-video-media,.mega-product-media{position:relative;height:92px;background:#eaf0f8;overflow:hidden}
    .mega-video-media img,.mega-product-media img{width:100%;height:100%;object-fit:cover}
    .mega-duration{position:absolute;right:7px;bottom:7px;padding:2px 6px;border-radius:4px;background:rgba(0,0,0,.76);color:#fff;font-size:11px}
    .mega-card-body{padding:9px}
    .mega-card-title{margin:0;font-size:13px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .mega-card-summary{display:-webkit-box;overflow:hidden;margin:4px 0 0;color:var(--muted);font-size:11px;-webkit-box-orient:vertical;-webkit-line-clamp:2}
    .mega-product-meta{margin-top:5px;color:#8791a2;font-size:10px}
    .header-btns{display:flex;align-items:center;gap:9px}
    .header-member{display:flex;align-items:center}
    .account-btn{padding:9px 17px;border-radius:8px;background:var(--primary);color:#fff;font-size:14px;font-weight:700}
    .account-btn:hover{background:var(--primary-dark)}
    .hamburger{display:none;width:42px;height:42px;padding:9px;border:0;border-radius:8px;background:#edf3fc;cursor:pointer}
    .hamburger span{display:block;width:22px;height:2px;margin:5px auto;background:var(--primary);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:199;visibility:hidden;opacity:0;background:rgba(3,12,28,.58);transition:.25s}
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;z-index:200;width:min(390px,90vw);overflow-y:auto;background:#fff;box-shadow:-18px 0 50px rgba(0,0,0,.18);transform:translateX(105%);transition:.28s}
    .mobile-drawer.open{transform:none}
    .drawer-head{display:flex;align-items:center;gap:10px;min-height:72px;padding:13px 18px;border-bottom:1px solid var(--line)}
    .drawer-head>a{padding:8px 13px;border-radius:7px;background:var(--primary);color:#fff;font-size:13px}
    .drawer-close{margin-left:auto;border:0;background:transparent;color:#23334e;font-size:31px;line-height:1;cursor:pointer}
    .drawer-menu{padding:13px 18px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 4px;border:0;border-bottom:1px solid var(--line);background:none;color:#17233a;text-align:left;font-weight:700;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--primary);font-size:20px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:7px 0 7px 14px;border-left:2px solid #cbd9ef}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px;color:#5c687b;font-size:13px}
    .drawer-submenu a:hover{color:var(--primary)}

    .video-page{background:var(--soft)}
    .video-page .video-hero{position:relative;overflow:hidden;padding:72px 0 58px;color:#fff;background:linear-gradient(135deg,#06152e 0%,#0B3D91 62%,#0d568d 100%)}
    .video-page .video-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 25%,rgba(51,196,255,.22),transparent 28%),linear-gradient(115deg,transparent 0 48%,rgba(255,255,255,.04) 48% 49%,transparent 49%)}
    .video-page .video-hero-inner{position:relative;text-align:center}
    .video-page .eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:13px;padding:6px 12px;border:1px solid rgba(255,255,255,.3);border-radius:999px;background:rgba(255,255,255,.08);font-size:13px}
    .video-page .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:#42e696;box-shadow:0 0 12px #42e696}
    .video-page h1{margin:0;font-size:clamp(32px,5vw,54px);line-height:1.15}
    .video-page .hero-copy{max-width:720px;margin:18px auto 0;color:#dce8fa;font-size:16px}
    .video-page .hero-path{display:flex;justify-content:center;gap:8px;margin-top:22px;color:#b9c9e2;font-size:13px}
    .video-page .hero-path a:hover{color:#fff}
    .video-page .category-nav{position:relative;z-index:2;margin-top:-25px}
    .video-page .category-panel{padding:18px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 14px 40px rgba(11,40,82,.12)}
    .video-page .category-label{margin:0 0 11px;color:#6b7688;font-size:13px;font-weight:700}
    .video-page .category-links{display:flex;flex-wrap:wrap;gap:9px}
    .video-page .category-links a{padding:8px 14px;border:1px solid #dce4ef;border-radius:999px;color:#34425a;font-size:13px;transition:.2s}
    .video-page .category-links a:hover{border-color:var(--primary);background:#edf4ff;color:var(--primary)}
    .video-page .video-content{padding:48px 0 76px}
    .video-page .section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:23px}
    .video-page .section-head h2{margin:0;font-size:29px;line-height:1.25}
    .video-page .section-head p{margin:7px 0 0;color:var(--muted)}
    .video-page .result-note{padding:7px 12px;border-radius:8px;background:#e8f0fc;color:var(--primary);font-size:13px;font-weight:700}
    .video-page .video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
    .video-page .video-card{min-width:0;overflow:hidden;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 8px 26px rgba(26,48,82,.07);transition:.25s}
    .video-page .video-card:hover{transform:translateY(-5px);border-color:#aac0e1;box-shadow:0 18px 38px rgba(11,61,145,.14)}
    .video-page .video-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#102747}
    .video-page .video-cover img{width:100%;height:100%;object-fit:cover;transition:.35s}
    .video-page .video-card:hover .video-cover img{transform:scale(1.045)}
    .video-page .play-mark{position:absolute;left:18px;bottom:16px;width:44px;height:44px;border:1px solid rgba(255,255,255,.6);border-radius:50%;background:rgba(11,61,145,.88);box-shadow:0 8px 24px rgba(0,0,0,.25)}
    .video-page .play-mark:after{content:"";position:absolute;top:13px;left:17px;border-top:9px solid transparent;border-bottom:9px solid transparent;border-left:14px solid #fff}
    .video-page .duration{position:absolute;right:12px;bottom:12px;padding:3px 8px;border-radius:5px;background:rgba(0,0,0,.78);color:#fff;font-size:12px}
    .video-page .video-body{padding:19px}
    .video-page .video-type{display:inline-block;margin-bottom:9px;color:var(--primary);font-size:12px;font-weight:800}
    .video-page .video-title{display:-webkit-box;overflow:hidden;margin:0;color:#172238;font-size:18px;line-height:1.45;-webkit-box-orient:vertical;-webkit-line-clamp:2}
    .video-page .video-summary{display:-webkit-box;overflow:hidden;min-height:47px;margin:10px 0 15px;color:var(--muted);font-size:14px;line-height:1.7;-webkit-box-orient:vertical;-webkit-line-clamp:2}
    .video-page .video-action{display:flex;align-items:center;justify-content:space-between;padding-top:13px;border-top:1px solid #edf0f5;color:#778296;font-size:12px}
    .video-page .watch-link{color:var(--primary);font-weight:800}
    .video-page .watch-link:after{content:" →"}
    .video-page .pagination{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:42px}
    .video-page .pagination a{display:flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 13px;border:1px solid #d9e1ec;border-radius:9px;background:#fff;color:#47536a;font-size:14px}
    .video-page .pagination a:hover,.video-page .pagination .active,.video-page .pagination .current{border-color:var(--primary);background:var(--primary);color:#fff}
    .video-page .video-guide{margin-top:54px;padding:28px;border-radius:18px;color:#e8f2ff;background:#0b234b}
    .video-page .video-guide h2{margin:0 0 8px;color:#fff;font-size:23px}
    .video-page .video-guide p{margin:0;color:#bfcee3;font-size:14px}

    .footer{color:#cbd5e6;background:#07162f}
    .footer-main{padding:58px 0 42px}
    .footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.25fr;gap:38px}
    .footer .logo{color:#fff}
    .footer-brand p{margin:18px 0;color:#aebbd0;font-size:14px}
    .footer-risk{padding:13px;border:1px solid rgba(255,255,255,.12);border-radius:9px;background:rgba(255,255,255,.04);color:#9dabc0;font-size:12px}
    .footer h3{margin:5px 0 17px;color:#fff;font-size:15px}
    .footer-links,.footer-contact{display:flex;flex-direction:column;gap:10px}
    .footer-links a,.footer-contact a{color:#aebbd0;font-size:13px}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-social{margin-top:4px}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.1);color:#8291a8;font-size:12px}
    .footer-bottom-inner{min-height:58px;display:flex;align-items:center;justify-content:space-between;gap:20px}

    @media (max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:block}
      .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(2,1fr)}
    }
    @media (max-width:720px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-welcome{display:none}
      .topbar-inner{justify-content:center}
      .topbar-contact{gap:12px;font-size:11px}
      .header-member{display:none}
      .logo span{font-size:16px}
      .logo img{width:36px;height:36px}
      .account-btn{padding:8px 12px}
      .video-page .video-hero{padding:50px 0 47px}
      .video-page .hero-copy{font-size:14px}
      .video-page .category-nav{margin-top:-18px}
      .video-page .video-content{padding:38px 0 58px}
      .video-page .section-head{display:block}
      .video-page .result-note{display:inline-block;margin-top:13px}
      .video-page .video-grid{grid-template-columns:1fr}
      .video-page .video-summary{min-height:0}
      .footer-main{padding:43px 0 30px}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .footer-bottom-inner{align-items:flex-start;flex-direction:column;padding:17px 0}
    }