:root{
      --theme:#0B3D91;
      --theme-token:{主题色};
      --theme-dark:#072b68;
      --theme-soft:#eaf1fc;
      --ink:#172238;
      --muted:#657189;
      --line:#dce4ef;
      --surface:#fff;
      --page:#f4f7fb;
      --success:#138a72;
      --shadow:0 14px 40px rgba(19,42,80,.1);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--page);
      font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;
      line-height:1.7;
      overflow-x:hidden;
    }
    img{max-width:100%;height:auto}
    a{color:inherit;text-decoration:none}
    button,input,textarea,select{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{
      color:#dbe8ff;
      background:#071c40;
      font-size:13px;
    }
    .topbar .container{
      min-height:38px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .topbar span:last-child{display:flex;gap:20px}
    .topbar a{transition:color .2s ease}
    .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 4px 18px rgba(23,34,56,.04);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:25px;
    }
    .logo{
      min-width:180px;
      display:flex;
      align-items:center;
      gap:11px;
      color:var(--theme);
      font-size:19px;
      font-weight:800;
      white-space:nowrap;
    }
    .logo img{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:10px;
    }
    .main-nav{margin-left:auto;height:78px}
    .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:center;
    }
    .nav-link{
      height:100%;
      display:flex;
      align-items:center;
      padding:0 12px;
      color:#28364e;
      font-size:15px;
      font-weight:650;
      white-space:nowrap;
      transition:color .2s ease,background .2s ease;
    }
    .nav-link:hover,
    .nav-item:focus-within>.nav-link{
      color:var(--theme);
      background:var(--theme-soft);
    }
    .has-arrow::after{
      content:"";
      width:6px;
      height:6px;
      margin:0 0 4px 8px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      transform:rotate(45deg);
    }
    .dropdown-panel,
    .mega-menu{
      position:absolute;
      top:100%;
      left:0;
      z-index:70;
      visibility:hidden;
      opacity:0;
      pointer-events:none;
      transform:translateY(9px);
      transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 16px 16px;
      box-shadow:0 24px 55px rgba(15,35,70,.17);
    }
    .dropdown-panel::before,
    .mega-menu::before{
      content:"";
      position:absolute;
      right:0;
      bottom:100%;
      left:0;
      height:10px;
    }
    .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:translateY(0);
    }
    .dropdown-panel{
      width:285px;
      padding:10px;
    }
    .dropdown-panel a{
      display:block;
      padding:10px 12px;
      border-radius:9px;
      color:#3c4960;
      font-size:14px;
    }
    .dropdown-panel a:hover{color:var(--theme);background:var(--theme-soft)}
    .mega-menu{
      left:50%;
      width:min(760px,80vw);
      padding:18px;
      transform:translate(-50%,9px);
    }
    .nav-item:hover>.mega-menu,
    .nav-item:focus-within>.mega-menu{transform:translate(-50%,0)}
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:11px;
    }
    .mega-card{
      min-width:0;
      min-height:92px;
      display:grid;
      grid-template-columns:48px minmax(0,1fr);
      align-content:center;
      gap:2px 10px;
      padding:12px;
      border:1px solid #e5ebf4;
      border-radius:12px;
      background:#fbfcff;
      transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
    }
    .mega-card:hover{
      border-color:#adc3e8;
      transform:translateY(-2px);
      box-shadow:0 9px 22px rgba(11,61,145,.09);
    }
    .mega-card img{
      grid-row:1/4;
      width:48px;
      height:48px;
      align-self:center;
      object-fit:cover;
      border-radius:10px;
      background:#edf2fa;
    }
    .mega-card strong,
    .mega-card small{
      min-width:0;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .mega-card strong{
      color:#24324a;
      font-size:14px;
      white-space:nowrap;
    }
    .mega-card small{
      color:var(--muted);
      font-size:12px;
      line-height:1.45;
      white-space:nowrap;
    }
    .mega-footer{
      display:block;
      margin-top:14px;
      padding:10px 14px;
      color:#fff;
      background:var(--theme);
      border-radius:10px;
      text-align:center;
      font-size:14px;
      font-weight:700;
    }
    .header-btns{
      display:flex;
      align-items:center;
      gap:9px;
      white-space:nowrap;
    }
    .member-link,
    .open-account{
      padding:9px 14px;
      border-radius:9px;
      font-size:14px;
      font-weight:700;
    }
    .member-link{color:var(--theme);border:1px solid #b9cae7}
    .open-account{color:#fff;background:var(--theme)}
    .hamburger{
      width:42px;
      height:42px;
      display:none;
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
      padding:0;
      border:1px solid var(--line);
      border-radius:10px;
      color:inherit;
      background:#fff;
      cursor:pointer;
    }
    .hamburger span{
      width:19px;
      height:2px;
      background:var(--ink);
      transition:transform .2s ease,opacity .2s ease;
    }
    .hamburger.active span:first-child{transform:translateY(7px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:last-child{transform:translateY(-7px) rotate(-45deg)}

    .drawer-overlay{
      position:fixed;
      inset:0;
      z-index:90;
      visibility:hidden;
      opacity:0;
      background:rgba(6,18,39,.58);
      transition:opacity .25s ease,visibility .25s ease;
    }
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      z-index:100;
      width:min(390px,90vw);
      height:100dvh;
      overflow-y:auto;
      transform:translateX(105%);
      background:#fff;
      box-shadow:-20px 0 45px rgba(5,24,55,.18);
      transition:transform .28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:72px;
      display:flex;
      align-items:center;
      gap:12px;
      padding:14px 18px;
      color:#fff;
      background:var(--theme);
    }
    .drawer-head>a{
      padding:7px 11px;
      border:1px solid rgba(255,255,255,.45);
      border-radius:8px;
    }
    .drawer-close{
      width:38px;
      height:38px;
      margin-left:auto;
      padding:0;
      color:#fff;
      background:transparent;
      border:0;
      font-size:29px;
      cursor:pointer;
    }
    .drawer-menu{padding:14px 18px 30px}
    .drawer-link,
    .drawer-toggle{
      width:100%;
      min-height:48px;
      display:flex;
      align-items:center;
      color:#28364d;
      background:transparent;
      border:0;
      border-bottom:1px solid #e9edf4;
      text-align:left;
      font-weight:700;
      cursor:pointer;
    }
    .drawer-toggle::after{
      content:"+";
      margin-left:auto;
      color:var(--theme);
      font-size:20px;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      max-height:0;
      overflow:hidden;
      background:#f5f8fd;
      transition:max-height .3s ease;
    }
    .drawer-submenu.open{max-height:700px}
    .drawer-submenu a{
      display:block;
      padding:10px 15px;
      color:#536078;
      border-bottom:1px solid #e6ebf3;
      font-size:14px;
    }

    .tool-detail-page{padding:34px 0 76px}
    .tool-detail-page .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      margin-bottom:20px;
      color:#758096;
      font-size:14px;
    }
    .tool-detail-page .breadcrumb a:hover{color:var(--theme)}
    .tool-detail-page .tool-hero{
      position:relative;
      overflow:hidden;
      padding:38px;
      border:1px solid #d8e2f1;
      border-radius:24px;
      color:#fff;
      background:
        radial-gradient(circle at 84% 14%,rgba(128,180,255,.38),transparent 27%),
        linear-gradient(135deg,var(--theme-dark),var(--theme));
      box-shadow:0 22px 50px rgba(11,61,145,.2);
    }
    .tool-detail-page .tool-hero::after{
      content:"";
      position:absolute;
      right:-75px;
      bottom:-100px;
      width:270px;
      height:270px;
      border:48px solid rgba(255,255,255,.08);
      border-radius:50%;
    }
    .tool-detail-page .tool-heading{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      gap:24px;
    }
    .tool-detail-page .tool-icon{
      width:96px;
      height:96px;
      flex:0 0 96px;
      padding:16px;
      object-fit:contain;
      border:1px solid rgba(255,255,255,.35);
      border-radius:22px;
      background:rgba(255,255,255,.94);
      box-shadow:0 12px 30px rgba(0,0,0,.13);
    }
    .tool-detail-page .tool-kicker{
      display:inline-flex;
      padding:5px 11px;
      border:1px solid rgba(255,255,255,.34);
      border-radius:999px;
      background:rgba(255,255,255,.1);
      font-size:13px;
    }
    .tool-detail-page h1{
      margin:8px 0 6px;
      font-size:clamp(30px,4vw,48px);
      line-height:1.18;
      letter-spacing:-.02em;
    }
    .tool-detail-page .tool-summary{
      max-width:760px;
      margin:0;
      color:#e7effe;
      font-size:16px;
    }
    .tool-detail-page .tool-meta{
      position:relative;
      z-index:1;
      display:flex;
      flex-wrap:wrap;
      gap:10px 20px;
      margin-top:24px;
      color:#d9e7ff;
      font-size:14px;
    }
    .tool-detail-page .detail-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 320px;
      align-items:start;
      gap:25px;
      margin-top:25px;
    }
    .tool-detail-page .content-card,
    .tool-detail-page .side-card{
      min-width:0;
      max-width:100%;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:#fff;
      box-shadow:var(--shadow);
    }
    .tool-detail-page .content-head{padding:26px 30px 0}
    .tool-detail-page .content-head h2,
    .tool-detail-page .side-card h2{
      margin:0;
      color:#1c2b44;
      font-size:21px;
    }
    .tool-detail-page .content-head p{
      margin:6px 0 0;
      color:var(--muted);
      font-size:14px;
    }
    .tool-detail-page .tool-content{
      min-width:0;
      max-width:100%;
      overflow-x:auto;
      padding:22px 30px 34px;
      color:#354158;
      font-size:16px;
    }
    .tool-detail-page .tool-content img,
    .tool-detail-page .tool-content video,
    .tool-detail-page .tool-content iframe{
      max-width:100%;
      border-radius:12px;
    }
    .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:10px;
      border:1px solid var(--line);
    }
    .tool-detail-page .tool-content a{color:var(--theme);text-decoration:underline}
    .tool-detail-page .tool-content h2,
    .tool-detail-page .tool-content h3{color:#172b4d;line-height:1.35}
    .tool-detail-page .side-card{padding:22px}
    .tool-detail-page .side-note{
      margin:10px 0 18px;
      color:var(--muted);
      font-size:14px;
    }
    .tool-detail-page .related-list{display:grid;gap:11px}
    .tool-detail-page .related-tool{
      display:grid;
      grid-template-columns:48px minmax(0,1fr);
      gap:10px;
      padding:11px;
      border:1px solid #e4eaf3;
      border-radius:12px;
      transition:border-color .2s ease,transform .2s ease,background .2s ease;
    }
    .tool-detail-page .related-tool:hover{
      border-color:#a8bee3;
      background:#f7faff;
      transform:translateY(-2px);
    }
    .tool-detail-page .related-tool img{
      width:48px;
      height:48px;
      grid-row:1/3;
      object-fit:contain;
      padding:6px;
      border-radius:10px;
      background:var(--theme-soft);
    }
    .tool-detail-page .related-tool strong{
      overflow:hidden;
      color:#26354d;
      font-size:14px;
      line-height:1.4;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .tool-detail-page .related-tool span{
      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{
      margin-top:18px;
      padding:18px;
      border:1px solid #dce7f7;
      border-radius:14px;
      background:var(--theme-soft);
    }
    .tool-detail-page .risk-card strong{display:block;color:var(--theme)}
    .tool-detail-page .risk-card p{margin:5px 0 0;color:#52617a;font-size:13px}

    .footer{
      color:#c7d3e6;
      background:#081b3a;
    }
    .footer .container{padding-top:55px}
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr repeat(3,1fr);
      gap:45px;
      padding-bottom:38px;
    }
    .footer h3{
      margin:0 0 16px;
      color:#fff;
      font-size:16px;
    }
    .footer-brand strong{display:block;margin-bottom:14px;color:#fff;font-size:22px}
    .footer p{margin:7px 0;font-size:14px}
    .footer-grid>div:not(.footer-brand)>a{
      display:block;
      width:max-content;
      max-width:100%;
      margin:8px 0;
      color:#c7d3e6;
      font-size:14px;
    }
    .footer a:hover{color:#fff}
    .footer-bottom{
      min-height:68px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:25px;
      border-top:1px solid rgba(255,255,255,.12);
      font-size:13px;
    }

    @media (max-width:1120px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-inner{min-height:70px}
      .header-btns{margin-left:auto}
    }
    @media (max-width:900px){
      .tool-detail-page .detail-layout{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:640px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{
        padding:7px 0;
        align-items:flex-start;
        flex-direction:column;
        gap:2px;
      }
      .topbar span:last-child{flex-wrap:wrap;gap:2px 14px}
      .logo{min-width:0;font-size:16px}
      .logo img{width:37px;height:37px}
      .member-link{display:none}
      .open-account{padding:8px 11px}
      .tool-detail-page{padding:22px 0 52px}
      .tool-detail-page .tool-hero{padding:25px 20px}
      .tool-detail-page .tool-heading{align-items:flex-start;flex-direction:column;gap:17px}
      .tool-detail-page .tool-icon{width:76px;height:76px;flex-basis:76px}
      .tool-detail-page h1{font-size:30px}
      .tool-detail-page .content-head{padding:22px 20px 0}
      .tool-detail-page .tool-content{padding:17px 20px 27px}
      .footer-grid{grid-template-columns:1fr;gap:25px}
      .footer-bottom{
        align-items:flex-start;
        flex-direction:column;
        justify-content:center;
        padding:18px 0;
      }
    }