:root{--primary:#0B3D91;--primary-dark:#072b68;--primary-soft:#eaf1fc;--accent:#ff765d;--cream:#fff9ed;--ink:#252a33;--muted:#667085;--line:#e5e9f0;--surface:#fff;--bg:#f5f7fb;--shadow:0 18px 45px rgba(11,61,145,.12)}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--bg);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.65}
    body,button,input,textarea{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{background:#20252e;color:#e9edf4;font-size:13px}
    .topbar .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .topbar-links{display:flex;align-items:center;gap:22px}
    .topbar a:hover{color:#fff;text-decoration:underline}
    .header{position:relative;z-index:50;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);box-shadow:0 5px 20px rgba(21,31,50,.04)}
    .header-inner{height:76px;display:flex;align-items:center;gap:24px}
    .logo{display:flex;align-items:center;gap:11px;min-width:170px;font-size:19px;font-weight:800;color:var(--primary)}
    .logo img{width:42px;height:42px;object-fit:contain}
    .main-nav{margin-left:auto;height:100%}
    .nav-list{height:100%;display:flex;align-items:stretch;gap:3px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative;display:flex;align-items:center}
    .nav-link{height:100%;display:flex;align-items:center;padding:0 13px;font-size:15px;font-weight:700;color:#353b46;white-space:nowrap}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--primary)}
    .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%;left:50%;visibility:hidden;opacity:0;pointer-events:none;transform:translate(-50%,10px);transition:.2s ease;background:#fff;border:1px solid var(--line);border-radius:0 0 18px 18px;box-shadow:0 24px 55px rgba(21,31,50,.16)}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px}
    .dropdown-panel{width:330px;padding:21px}
    .mega-menu{width:min(850px,88vw);padding:24px}
    .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:translate(-50%,0)}
    .panel-title{margin:0 0 11px;color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.05em}
    .panel-list{display:flex;flex-wrap:wrap;gap:8px}
    .panel-list a{padding:8px 11px;border-radius:8px;background:var(--primary-soft);font-size:13px;color:#34425a}
    .panel-list a:hover{color:#fff;background:var(--primary)}
    .dropdown-panel .panel-list{display:grid}
    .dropdown-panel .panel-list a{background:#f7f8fb}
    .mega-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px}
    .mega-card{min-width:0;display:grid;grid-template-columns:42px minmax(0,1fr);align-items:center;column-gap:10px;padding:11px;border:1px solid var(--line);border-radius:11px;background:#fff;transition:.2s ease}
    .mega-card:hover{border-color:#b9cae8;box-shadow:0 8px 22px rgba(11,61,145,.1);transform:translateY(-2px)}
    .mega-card img{grid-row:1/4;width:42px;height:42px;border-radius:9px;object-fit:contain;background:#f3f6fb}
    .mega-card strong,.mega-card small{min-width:0;overflow:hidden;text-overflow:ellipsis}
    .mega-card strong{font-size:14px;white-space:nowrap}
    .mega-card small{display:block;color:var(--muted);font-size:11px;line-height:1.4}
    .mega-footer{display:block;margin-top:16px;padding-top:13px;border-top:1px solid var(--line);text-align:right;color:var(--primary);font-size:13px;font-weight:800}
    .header-btns{display:flex;align-items:center;gap:9px}
    .member-link,.open-account{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 14px;border-radius:9px;font-size:14px;font-weight:800;white-space:nowrap}
    .member-link{color:var(--primary);border:1px solid #b8c8e4;background:#fff}
    .open-account{color:#fff;background:var(--primary);box-shadow:0 8px 18px rgba(11,61,145,.2)}
    .member-link:hover{background:var(--primary-soft)}
    .open-account:hover{background:var(--primary-dark)}
    .hamburger{display:none;width:42px;height:42px;padding:10px;border:0;border-radius:9px;background:var(--primary-soft);cursor:pointer}
    .hamburger span{display:block;width:22px;height:2px;margin:4px 0;background:var(--primary);transition:.2s}
    .hamburger.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
    .drawer-overlay{position:fixed;z-index:98;inset:0;visibility:hidden;opacity:0;background:rgba(12,18,28,.55);transition:.25s}
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{position:fixed;z-index:99;top:0;right:0;width:min(390px,90vw);height:100vh;visibility:hidden;transform:translateX(100%);background:#fff;box-shadow:-20px 0 50px rgba(0,0,0,.2);transition:.3s ease;overflow-y:auto}
    .mobile-drawer.open{visibility:visible;transform:translateX(0)}
    .drawer-head{position:sticky;top:0;z-index:2;min-height:68px;display:flex;align-items:center;gap:11px;padding:13px 20px;color:#fff;background:var(--primary)}
    .drawer-head>a{padding:7px 10px;border:1px solid rgba(255,255,255,.35);border-radius:8px;font-size:13px}
    .drawer-close{margin-left:auto;width:38px;height:38px;border:0;border-radius:50%;color:#fff;background:rgba(255,255,255,.14);font-size:27px;line-height:1;cursor:pointer}
    .drawer-menu{padding:15px 20px 28px}
    .drawer-link,.drawer-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;padding:14px 4px;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;font-weight:800;cursor:pointer}
    .drawer-toggle:after{content:"+";font-size:20px;color:var(--primary)}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:7px 0 10px 13px;border-bottom:1px solid var(--line)}
    .drawer-submenu.open{display:grid}
    .drawer-submenu a{padding:9px 6px;color:var(--muted);font-size:14px}
    .drawer-submenu a:hover{color:var(--primary)}
    .tool-detail-page{min-width:0}
    .tool-detail-page .detail-banner{position:relative;overflow:hidden;padding:58px 0 110px;background:linear-gradient(135deg,#082f73 0%,#0B3D91 58%,#174fa7 100%);color:#fff}
    .tool-detail-page .detail-banner:before,.tool-detail-page .detail-banner:after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.13)}
    .tool-detail-page .detail-banner:before{width:480px;height:480px;right:-120px;top:-250px}
    .tool-detail-page .detail-banner:after{width:260px;height:260px;left:-90px;bottom:-170px}
    .tool-detail-page .breadcrumb{position:relative;z-index:1;display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:25px;color:#dbe7fb;font-size:14px}
    .tool-detail-page .breadcrumb a:hover{text-decoration:underline}
    .tool-detail-page .tool-heading{position:relative;z-index:1;max-width:850px}
    .tool-detail-page .tool-kicker{display:inline-flex;align-items:center;gap:8px;margin-bottom:13px;padding:6px 12px;border:1px solid rgba(255,255,255,.25);border-radius:999px;background:rgba(255,255,255,.1);font-size:13px;font-weight:800}
    .tool-detail-page .tool-kicker:before{content:"";width:7px;height:7px;border-radius:50%;background:#ffb49f;box-shadow:0 0 0 5px rgba(255,180,159,.14)}
    .tool-detail-page h1{margin:0 0 15px;font-size:clamp(32px,5vw,55px);line-height:1.15;letter-spacing:-.03em}
    .tool-detail-page .tool-intro{max-width:760px;margin:0;color:#e8effb;font-size:17px;line-height:1.8}
    .tool-detail-page .detail-wrap{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:28px;margin-top:-67px;padding-bottom:70px}
    .tool-detail-page .tool-main,.tool-detail-page .side-card{border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow)}
    .tool-detail-page .tool-main{min-width:0;overflow:hidden}
    .tool-detail-page .tool-summary{display:grid;grid-template-columns:78px minmax(0,1fr);gap:19px;align-items:center;padding:25px 28px;border-bottom:1px solid var(--line);background:linear-gradient(135deg,#fffaf1,#fff)}
    .tool-detail-page .tool-icon{width:78px;height:78px;padding:12px;border:1px solid #f0dacd;border-radius:18px;background:#fff;object-fit:contain}
    .tool-detail-page .summary-label{display:block;margin-bottom:4px;color:var(--accent);font-size:12px;font-weight:900;letter-spacing:.08em}
    .tool-detail-page .tool-summary p{margin:0;color:#4f5968;font-size:15px}
    .tool-detail-page .tool-meta{display:flex;flex-wrap:wrap;gap:9px 18px;margin-top:12px;color:var(--muted);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:6px;height:6px;border-radius:50%;background:var(--primary)}
    .tool-detail-page .tool-content{min-width:0;max-width:100%;padding:30px 32px 38px;overflow-x:auto;color:#384252}
    .tool-detail-page .tool-content h2,.tool-detail-page .tool-content h3,.tool-detail-page .tool-content h4{margin:1.4em 0 .65em;color:#1f2b3c;line-height:1.35}
    .tool-detail-page .tool-content h2{padding-bottom:11px;border-bottom:1px solid var(--line);font-size:25px}
    .tool-detail-page .tool-content h3{font-size:20px}
    .tool-detail-page .tool-content p{margin:0 0 1.1em}
    .tool-detail-page .tool-content a{color:var(--primary);text-decoration:underline}
    .tool-detail-page .tool-content img,.tool-detail-page .tool-content video,.tool-detail-page .tool-content iframe{max-width:100%;height:auto}
    .tool-detail-page .tool-content table{width:100%;max-width:100%;border-collapse:collapse}
    .tool-detail-page .tool-content th,.tool-detail-page .tool-content td{padding:11px;border:1px solid var(--line)}
    .tool-detail-page .tool-content blockquote{margin:22px 0;padding:16px 20px;border-left:4px solid var(--accent);background:var(--cream)}
    .tool-detail-page .tool-content pre{max-width:100%;overflow-x:auto;padding:18px;border-radius:12px;color:#eef5ff;background:#1f2630}
    .tool-detail-page .tool-content ul,.tool-detail-page .tool-content ol{padding-left:23px}
    .tool-detail-page .detail-sidebar{min-width:0}
    .tool-detail-page .side-card{padding:23px}
    .tool-detail-page .side-card+.side-card{margin-top:20px}
    .tool-detail-page .side-card h2{margin:0 0 6px;color:#1e2938;font-size:21px}
    .tool-detail-page .side-lead{margin:0 0 17px;color:var(--muted);font-size:13px}
    .tool-detail-page .related-list{display:grid;gap:11px}
    .tool-detail-page .related-tool{min-width:0;display:grid;grid-template-columns:48px minmax(0,1fr);gap:11px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:12px;transition:.2s}
    .tool-detail-page .related-tool:hover{border-color:#b4c7e7;background:var(--primary-soft);transform:translateY(-2px)}
    .tool-detail-page .related-tool img{width:48px;height:48px;padding:6px;border-radius:10px;background:#fff;object-fit:contain}
    .tool-detail-page .related-tool strong{display:block;margin-bottom:2px;color:#243247;font-size:14px}
    .tool-detail-page .related-tool small{display:-webkit-box;overflow:hidden;color:var(--muted);font-size:12px;line-height:1.5;-webkit-box-orient:vertical;-webkit-line-clamp:2}
    .tool-detail-page .risk-card{border-color:#f0dac8;background:var(--cream);box-shadow:none}
    .tool-detail-page .risk-card h2{color:#743d2c}
    .tool-detail-page .risk-card p{margin:8px 0 0;color:#71594e;font-size:13px}
    .tool-detail-page .tools-cta{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:22px;padding:22px 24px;border-radius:17px;color:#fff;background:#252a33}
    .tool-detail-page .tools-cta strong{display:block;font-size:18px}
    .tool-detail-page .tools-cta span{display:block;color:#c8ced8;font-size:13px}
    .tool-detail-page .tools-cta a{flex:none;padding:10px 16px;border-radius:9px;color:#fff;background:var(--accent);font-size:14px;font-weight:800}
    .footer{padding:54px 0 0;color:#cbd3df;background:#20252e}
    .footer-grid{display:grid;grid-template-columns:1.35fr repeat(3,1fr);gap:38px;padding-bottom:39px}
    .footer h3{margin:0 0 15px;color:#fff;font-size:15px}
    .footer-brand strong{display:block;margin-bottom:14px;color:#fff;font-size:22px}
    .footer p{margin:8px 0;color:#aeb8c7;font-size:13px;line-height:1.8}
    .footer-grid>div:not(.footer-brand) a{display:block;margin:0 0 10px;color:#cbd3df;font-size:14px}
    .footer a:hover{color:#fff}
    .footer-bottom{min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.1);color:#929dad;font-size:12px}
    @media (max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{height:70px}
      .header-btns{margin-left:auto}
      .tool-detail-page .detail-wrap{grid-template-columns:minmax(0,1fr) 300px}
    }
    @media (max-width:820px){
      .topbar .container{padding:8px 0;align-items:flex-start}
      .topbar-links{display:grid;gap:1px;text-align:right}
      .tool-detail-page .detail-banner{padding:44px 0 92px}
      .tool-detail-page .detail-wrap{display:block;margin-top:-50px}
      .tool-detail-page .detail-sidebar{margin-top:22px}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:600px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{display:block}
      .topbar-links{margin-top:4px;text-align:left}
      .logo{min-width:0}
      .logo img{width:36px;height:36px}
      .logo span{max-width:110px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .member-link{display:none}
      .open-account{min-height:38px;padding:0 11px}
      .tool-detail-page .detail-banner{padding-top:34px}
      .tool-detail-page .breadcrumb{font-size:12px}
      .tool-detail-page h1{font-size:34px}
      .tool-detail-page .tool-intro{font-size:15px}
      .tool-detail-page .tool-summary{grid-template-columns:58px minmax(0,1fr);padding:20px}
      .tool-detail-page .tool-icon{width:58px;height:58px;padding:8px;border-radius:13px}
      .tool-detail-page .tool-content{padding:23px 20px 30px}
      .tool-detail-page .tool-content h2{font-size:21px}
      .tool-detail-page .tools-cta{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr;gap:25px}
      .footer-bottom{padding:17px 0;align-items:flex-start;flex-direction:column;gap:4px}
    }