:root{
      --theme:#0B3D91;
      --template-theme:{主题色};
      --theme-dark:#06275e;
      --theme-light:#eaf2ff;
      --accent:#19c37d;
      --ink:#10213c;
      --muted:#64748b;
      --line:#dce4ef;
      --surface:#f5f8fc;
      --white:#fff;
      --shadow:0 18px 45px rgba(15,35,68,.12);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fff;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.65}
    body.drawer-lock{overflow:hidden}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button,input,textarea,select{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{background:#071b3b;color:#dbe8ff;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 18px rgba(21,48,87,.05)}
    .header-inner{height:78px;display:flex;align-items:center;gap:25px}
    .logo{display:inline-flex;align-items:center;gap:11px;min-width:0;font-size:20px;font-weight:800;color:var(--theme-dark)}
    .logo img{width:42px;height:42px;object-fit:contain;border-radius:9px}
    .logo span{white-space:nowrap}
    .main-nav{margin-left:auto;height:100%}
    .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:center}
    .nav-link{display:flex;align-items:center;height:100%;padding:0 13px;font-size:15px;font-weight:700;color:#243653;transition:.2s}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme);background:#f5f8ff}
    .has-arrow:after{content:"";width:6px;height:6px;margin-left:8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .header-btns{display:flex;align-items:center;gap:10px}
    .header-member{display:flex;align-items:center}
    .header-member a{font-size:14px;font-weight:700;color:var(--theme)}
    .account-btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 19px;border-radius:10px;background:var(--theme);color:#fff;font-weight:800;box-shadow:0 8px 18px rgba(11,61,145,.2)}
    .account-btn:hover{background:var(--theme-dark)}

    .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:focus-within>.dropdown-panel,.nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{visibility:visible;opacity:1;pointer-events:auto;transform:none}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px}
    .dropdown-panel{right:-110px;width:350px;padding:20px;border-radius:0 0 16px 16px}
    .dropdown-title{margin-bottom:12px;color:#51627b;font-size:12px;font-weight:800;letter-spacing:.08em}
    .dropdown-article{display:block;padding:10px 0;border-bottom:1px solid #edf1f6;font-size:14px;font-weight:650}
    .dropdown-article:hover,.dropdown-more:hover{color:var(--theme)}
    .dropdown-more{display:block;margin-top:14px;color:var(--theme);font-size:14px;font-weight:800}

    .mega-menu{left:50%;width:min(1000px,calc(100vw - 50px));padding:24px;border-radius:0 0 20px 20px;transform:translate(-50%,8px)}
    .nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{transform:translate(-50%,0)}
    .mega-brokers{width:min(920px,calc(100vw - 50px))}
    .mega-video,.mega-products{width:min(1080px,calc(100vw - 50px))}
    .mega-tools{width:min(850px,calc(100vw - 50px))}
    .mega-top{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:18px}
    .mega-title{font-size:18px;font-weight:850;color:#132a4d}
    .mega-note{margin-top:2px;color:var(--muted);font-size:13px}
    .text-link{color:var(--theme);font-size:14px;font-weight:800}
    .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 #e5ebf3;border-radius:13px;background:#fbfcfe;transition:.2s}
    .mega-broker-card:hover,.mega-tool:hover,.mega-video-card:hover,.mega-product-card:hover{border-color:#a9c2eb;transform:translateY(-2px);box-shadow:0 9px 20px rgba(22,56,105,.09)}
    .mega-broker-card img,.mega-tool>img{width:42px;height:42px;flex:0 0 42px;object-fit:contain;border-radius:9px;background:#fff}
    .mega-broker-name,.mega-tool strong{font-size:14px;font-weight:800}
    .mega-broker-rating{color:#d58a00;font-size:12px}
    .mega-broker-meta,.mega-tool small{display:block;color:var(--muted);font-size:11px;line-height:1.45}
    .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:8px;color:#40516b;font-size:13px}
    .mega-categories a:hover{background:var(--theme-light);color:var(--theme)}
    .mega-video-grid,.mega-product-grid{grid-template-columns:repeat(3,1fr)}
    .mega-video-card,.mega-product-card{overflow:hidden;border:1px solid #e4eaf2;border-radius:12px;background:#fff;transition:.2s}
    .mega-video-media,.mega-product-media{position:relative;height:95px;background:#e9eef6}
    .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:5px;background:rgba(0,0,0,.72);color:#fff;font-size:10px}
    .mega-card-body{padding:9px}
    .mega-card-title{margin:0;color:#1b304f;font-size:13px;font-weight:800;line-height:1.45}
    .mega-card-summary{display:-webkit-box;overflow:hidden;margin:5px 0 0;color:var(--muted);font-size:11px;line-height:1.5;-webkit-box-orient:vertical;-webkit-line-clamp:2}
    .mega-product-meta{margin-top:5px;color:#8591a3;font-size:10px}
    .mega-footer{display:block;margin:18px -24px -24px;padding:13px 24px;border-top:1px solid var(--line);border-radius:0 0 20px 20px;background:#f7f9fc;color:var(--theme);font-size:13px;font-weight:800;text-align:right}

    .hamburger{display:none;width:43px;height:43px;padding:10px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:100%;height:2px;margin:5px 0;background:#193153;transition:.25s}
    .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:200;inset:0;visibility:hidden;background:rgba(5,17,37,.62);opacity:0;transition:.25s}
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{position:fixed;z-index:210;top:0;right:0;width:min(390px,90vw);height:100%;overflow-y:auto;background:#fff;box-shadow:-20px 0 50px rgba(0,0,0,.2);transform:translateX(105%);transition:.3s}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{min-height:74px;display:flex;align-items:center;gap:12px;padding:14px 20px;border-bottom:1px solid var(--line);background:#f8faff}
    .drawer-head>a{color:var(--theme);font-weight:800}
    .drawer-close{margin-left:auto;width:38px;height:38px;border:0;border-radius:9px;background:#e8eef8;color:#193153;font-size:27px;line-height:1;cursor:pointer}
    .drawer-menu{padding:10px 20px 30px}
    .drawer-link,.drawer-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;padding:14px 3px;border:0;border-bottom:1px solid #e9eef5;background:transparent;color:#1c304d;font-weight:800;text-align:left;cursor:pointer}
    .drawer-toggle:after{content:"+";font-size:20px;font-weight:400}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:7px 0 11px 13px;border-bottom:1px solid #e9eef5}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px;color:#596b84;font-size:14px}
    .drawer-submenu a:hover{color:var(--theme)}

    .tool-detail-page{background:linear-gradient(180deg,#f2f6fc 0,#fff 430px);padding-bottom:80px}
    .tool-detail-page .tool-hero{padding:54px 0 40px}
    .tool-detail-page .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:24px;color:#677891;font-size:14px}
    .tool-detail-page .breadcrumb a:hover{color:var(--theme)}
    .tool-detail-page .tool-intro{position:relative;overflow:hidden;display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:26px;padding:34px;border:1px solid #d9e4f3;border-radius:24px;background:rgba(255,255,255,.94);box-shadow:0 22px 60px rgba(23,54,98,.1)}
    .tool-detail-page .tool-intro:after{content:"";position:absolute;right:-75px;top:-110px;width:260px;height:260px;border:58px solid rgba(11,61,145,.055);border-radius:50%}
    .tool-detail-page .tool-icon{position:relative;z-index:1;width:102px;height:102px;padding:18px;border:1px solid #dce6f4;border-radius:24px;background:linear-gradient(145deg,#fff,#edf4ff);object-fit:contain;box-shadow:0 12px 28px rgba(11,61,145,.13)}
    .tool-detail-page .tool-kicker{display:inline-flex;align-items:center;gap:8px;margin-bottom:8px;color:var(--theme);font-size:13px;font-weight:850;letter-spacing:.08em}
    .tool-detail-page .tool-kicker:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px rgba(25,195,125,.13)}
    .tool-detail-page h1{position:relative;z-index:1;margin:0;font-size:clamp(30px,4vw,48px);line-height:1.18;color:#0d274d}
    .tool-detail-page .tool-summary{position:relative;z-index:1;max-width:790px;margin:14px 0 0;color:#52657f;font-size:17px}
    .tool-detail-page .tool-meta{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:9px 20px;margin-top:19px;color:#738198;font-size:13px}
    .tool-detail-page .tool-meta span{display:inline-flex;align-items:center;gap:6px}
    .tool-detail-page .tool-meta span:before{content:"";width:5px;height:5px;border-radius:50%;background:#8ba8d2}

    .tool-detail-page .detail-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;align-items:start;gap:28px}
    .tool-detail-page .content-card,.tool-detail-page .related-card,.tool-detail-page .usage-note{border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 12px 35px rgba(23,53,94,.07)}
    .tool-detail-page .content-card{min-width:0;padding:34px}
    .tool-detail-page .section-heading{display:flex;align-items:center;gap:12px;margin:0 0 24px;color:#102a50;font-size:24px}
    .tool-detail-page .section-heading:before{content:"";width:5px;height:25px;border-radius:4px;background:var(--theme)}
    .tool-detail-page .tool-body{min-width:0;max-width:100%;overflow-x:auto;color:#263b59;font-size:16px}
    .tool-detail-page .tool-body img,.tool-detail-page .tool-body video,.tool-detail-page .tool-body iframe,.tool-detail-page .tool-body table{max-width:100%}
    .tool-detail-page .tool-body img{height:auto;border-radius:13px}
    .tool-detail-page .tool-body table{width:100%;border-collapse:collapse}
    .tool-detail-page .tool-body th,.tool-detail-page .tool-body td{padding:12px;border:1px solid var(--line)}
    .tool-detail-page .tool-body a{color:var(--theme);text-decoration:underline}
    .tool-detail-page .usage-note{margin-top:24px;padding:25px;background:linear-gradient(135deg,#f8fbff,#eef5ff)}
    .tool-detail-page .usage-note h2{margin:0 0 10px;font-size:19px;color:#173866}
    .tool-detail-page .usage-note p{margin:0;color:#5d6f87;font-size:14px}

    .tool-detail-page .detail-sidebar{position:sticky;top:24px}
    .tool-detail-page .related-card{overflow:hidden}
    .tool-detail-page .related-head{padding:20px 21px;border-bottom:1px solid var(--line)}
    .tool-detail-page .related-head h2{margin:0;color:#15335e;font-size:20px}
    .tool-detail-page .related-head p{margin:4px 0 0;color:var(--muted);font-size:13px}
    .tool-detail-page .related-list{padding:9px}
    .tool-detail-page .related-tool{display:grid;grid-template-columns:46px minmax(0,1fr);gap:11px;padding:12px;border-radius:13px;transition:.2s}
    .tool-detail-page .related-tool:hover{background:var(--theme-light)}
    .tool-detail-page .related-tool img{width:46px;height:46px;padding:7px;border:1px solid #dce5f1;border-radius:10px;background:#fff;object-fit:contain}
    .tool-detail-page .related-tool strong{display:block;overflow:hidden;color:#1b3458;font-size:14px;white-space:nowrap;text-overflow:ellipsis}
    .tool-detail-page .related-tool span{display:-webkit-box;overflow:hidden;margin-top:3px;color:#748198;font-size:12px;line-height:1.45;-webkit-box-orient:vertical;-webkit-line-clamp:2}
    .tool-detail-page .sidebar-action{display:block;margin:13px 9px 9px;padding:11px;border-radius:10px;background:var(--theme);color:#fff;font-size:14px;font-weight:800;text-align:center}

    .footer{color:#d8e4f7;background:#071a38}
    .footer-main{padding:58px 0 42px}
    .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:40px}
    .footer .logo{color:#fff}
    .footer-brand p{max-width:480px;margin:20px 0;color:#aebbd0;font-size:14px}
    .footer-risk{padding:13px 15px;border:1px solid rgba(255,255,255,.1);border-radius:10px;background:rgba(255,255,255,.04);color:#9faec4;font-size:12px}
    .footer h3{margin:5px 0 17px;color:#fff;font-size:16px}
    .footer-links,.footer-contact{display:flex;flex-direction:column;gap:10px}
    .footer-links a,.footer-contact a{color:#aebbd0;font-size:14px}
    .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);background:#05142c}
    .footer-bottom-inner{min-height:63px;display:flex;align-items:center;justify-content:space-between;gap:20px;color:#94a4bc;font-size:13px}

    @media(max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
      .detail-layout{grid-template-columns:minmax(0,1fr) 290px}
    }
    @media(max-width:820px){
      .tool-detail-page .detail-layout{grid-template-columns:1fr}
      .tool-detail-page .detail-sidebar{position:static}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:640px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-welcome{display:none}
      .topbar-inner{justify-content:center}
      .topbar-contact{width:100%;justify-content:space-between;gap:10px;font-size:12px}
      .header-inner{height:68px}
      .header .logo span{max-width:125px;overflow:hidden;text-overflow:ellipsis}
      .header-member{display:none}
      .account-btn{min-height:38px;padding:0 13px}
      .tool-detail-page .tool-hero{padding:32px 0 28px}
      .tool-detail-page .tool-intro{grid-template-columns:1fr;padding:25px}
      .tool-detail-page .tool-icon{width:80px;height:80px;border-radius:19px}
      .tool-detail-page .tool-summary{font-size:15px}
      .tool-detail-page .content-card{padding:23px 19px}
      .tool-detail-page .section-heading{font-size:21px}
      .footer-main{padding:42px 0 32px}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .footer-bottom-inner{padding:17px 0;flex-direction:column;align-items:flex-start;gap:8px}
    }