:root{
      --theme:#0B3D91;
      --theme-source:{主题色};
      --theme-dark:#06275e;
      --theme-soft:#eaf1ff;
      --ink:#111827;
      --muted:#64748b;
      --line:#e2e8f0;
      --surface:#ffffff;
      --soft:#f5f7fb;
      --success:#0f8a5f;
      --shadow:0 18px 50px rgba(15,23,42,.09);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:#fff;
      font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;
      line-height:1.7;
      -webkit-font-smoothing:antialiased;
    }
    body,button,input,textarea{font:inherit}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{color:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{
      background:#07152e;
      color:#dce7fb;
      font-size:13px;
    }
    .topbar-inner{
      min-height:38px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .topbar-info{display:flex;align-items:center;gap:22px}
    .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 5px 22px rgba(15,23,42,.04);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:26px;
    }
    .logo{
      display:flex;
      align-items:center;
      min-width:190px;
      gap:11px;
      font-size:19px;
      font-weight:800;
      color:#0f172a;
    }
    .logo img{
      width:42px;
      height:42px;
      border-radius:10px;
      object-fit:contain;
    }
    .main-nav{margin-left:auto;align-self:stretch}
    .nav-list{
      height:100%;
      margin:0;
      padding:0;
      display:flex;
      align-items:stretch;
      list-style:none;
    }
    .nav-item{
      position:relative;
      display:flex;
      align-items:stretch;
    }
    .nav-link{
      position:relative;
      display:flex;
      align-items:center;
      padding:0 13px;
      color:#263247;
      font-size:15px;
      font-weight:700;
      white-space:nowrap;
      transition:color .2s ease;
    }
    .nav-link::after{
      position:absolute;
      right:13px;
      bottom:0;
      left:13px;
      height:3px;
      background:var(--theme);
      content:"";
      opacity:0;
      transform:scaleX(.25);
      transition:.2s ease;
    }
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme)}
    .nav-link:hover::after,.nav-item:focus-within>.nav-link::after{
      opacity:1;
      transform:scaleX(1);
    }
    .nav-link.has-arrow{padding-right:27px}
    .nav-link.has-arrow::before{
      position:absolute;
      right:12px;
      top:50%;
      width:6px;
      height:6px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      content:"";
      transform:translateY(-70%) rotate(45deg);
      transition:transform .2s ease;
    }
    .nav-item:hover .nav-link.has-arrow::before,
    .nav-item:focus-within .nav-link.has-arrow::before{
      transform:translateY(-25%) rotate(225deg);
    }
    .dropdown-panel,.mega-menu{
      position:absolute;
      top:100%;
      visibility:hidden;
      opacity:0;
      background:#fff;
      border:1px solid var(--line);
      box-shadow:0 24px 60px rgba(15,23,42,.16);
      transform:translateY(8px);
      transition:opacity .2s ease,transform .2s ease,visibility .2s;
    }
    .dropdown-panel::before,.mega-menu::before{
      position:absolute;
      right:0;
      bottom:100%;
      left:0;
      height:10px;
      content:"";
    }
    .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;
      transform:translateY(0);
    }
    .dropdown-panel{
      left:0;
      width:310px;
      padding:12px;
      border-radius:0 0 16px 16px;
    }
    .dropdown-panel>a:not(.mega-footer){
      display:block;
      padding:10px 12px;
      border-radius:9px;
      color:#334155;
      font-size:14px;
    }
    .dropdown-panel>a:not(.mega-footer):hover{
      color:var(--theme);
      background:var(--theme-soft);
    }
    .mega-menu{
      left:50%;
      width:min(760px,82vw);
      padding:22px;
      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);
    }
    .nav-item:nth-last-child(-n+3) .mega-menu{
      right:0;
      left:auto;
      transform:translateY(8px);
    }
    .nav-item:nth-last-child(-n+3):hover>.mega-menu,
    .nav-item:nth-last-child(-n+3):focus-within>.mega-menu{
      transform:translateY(0);
    }
    .mega-heading{
      margin:0 0 14px;
      color:#0f172a;
      font-size:17px;
    }
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:10px;
    }
    .mega-card{
      min-width:0;
      min-height:92px;
      padding:14px;
      display:flex;
      flex-direction:column;
      align-items:flex-start;
      justify-content:center;
      gap:5px;
      border:1px solid #e7ebf1;
      border-radius:12px;
      background:#fbfcfe;
      transition:.2s ease;
    }
    .mega-card:hover{
      border-color:#aec5ef;
      background:var(--theme-soft);
      transform:translateY(-2px);
    }
    .mega-card img{
      width:28px;
      height:28px;
      margin-bottom:3px;
      object-fit:contain;
      border-radius:6px;
    }
    .mega-card strong{
      width:100%;
      overflow:hidden;
      color:#14213a;
      font-size:14px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-card small{
      width:100%;
      overflow:hidden;
      color:var(--muted);
      font-size:12px;
      line-height:1.5;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-footer{
      display:block;
      margin-top:13px;
      padding:10px 12px;
      color:var(--theme);
      background:#f1f5fb;
      border-radius:9px;
      font-size:14px;
      font-weight:800;
      text-align:center;
    }
    .header-btns{
      display:flex;
      align-items:center;
      gap:9px;
      white-space:nowrap;
    }
    .member-link,.open-link{
      padding:9px 14px;
      border-radius:9px;
      font-size:14px;
      font-weight:800;
    }
    .member-link{
      color:var(--theme);
      border:1px solid #bfd0ed;
      background:#fff;
    }
    .open-link{
      color:#fff;
      border:1px solid var(--theme);
      background:var(--theme);
    }
    .member-link:hover{background:var(--theme-soft)}
    .open-link:hover{background:var(--theme-dark)}
    .hamburger{
      width:42px;
      height:42px;
      padding:9px;
      display:none;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      gap:5px;
      border:1px solid var(--line);
      border-radius:10px;
      background:#fff;
      cursor:pointer;
    }
    .hamburger span{
      width:20px;
      height:2px;
      display:block;
      background:#14213a;
      transition:.25s ease;
    }
    .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:98;
      inset:0;
      visibility:hidden;
      opacity:0;
      background:rgba(2,8,23,.58);
      transition:.25s ease;
    }
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{
      position:fixed;
      z-index:99;
      top:0;
      right:0;
      width:min(390px,92vw);
      height:100vh;
      overflow-y:auto;
      background:#fff;
      box-shadow:-20px 0 60px rgba(2,8,23,.2);
      transform:translateX(105%);
      transition:transform .28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:72px;
      padding:14px 18px;
      display:flex;
      align-items:center;
      gap:10px;
      color:#fff;
      background:var(--theme);
    }
    .drawer-head>a{
      padding:7px 11px;
      border:1px solid rgba(255,255,255,.36);
      border-radius:8px;
      font-size:14px;
    }
    .drawer-close{
      width:38px;
      height:38px;
      margin-left:auto;
      border:0;
      color:#fff;
      background:transparent;
      font-size:30px;
      line-height:1;
      cursor:pointer;
    }
    .drawer-menu{padding:14px 18px 30px}
    .drawer-link,.drawer-toggle{
      width:100%;
      padding:14px 4px;
      display:flex;
      align-items:center;
      border:0;
      border-bottom:1px solid var(--line);
      background:transparent;
      color:#18243a;
      font-weight:800;
      text-align:left;
      cursor:pointer;
    }
    .drawer-toggle::after{
      margin-left:auto;
      content:"+";
      color:var(--theme);
      font-size:21px;
      font-weight:400;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      max-height:0;
      overflow:hidden;
      padding:0 8px;
      background:#f7f9fc;
      transition:max-height .35s ease;
    }
    .drawer-submenu.open{max-height:900px}
    .drawer-submenu a{
      padding:10px 8px;
      display:block;
      border-bottom:1px solid #e8edf4;
      color:#526078;
      font-size:14px;
    }
    .drawer-submenu a:hover{color:var(--theme)}

    .tool-detail-page{
      min-height:680px;
      overflow:hidden;
      background:
        radial-gradient(circle at 86% 6%,rgba(11,61,145,.10),transparent 24rem),
        linear-gradient(180deg,#f7f9fd 0,#fff 460px);
    }
    .tool-detail-page .tool-breadcrumb{
      padding:22px 0 12px;
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      color:#64748b;
      font-size:14px;
    }
    .tool-detail-page .tool-breadcrumb a:hover{color:var(--theme)}
    .tool-detail-page .tool-hero{
      position:relative;
      padding:44px;
      overflow:hidden;
      color:#fff;
      background:#07152e;
      border-radius:26px;
      box-shadow:0 28px 70px rgba(7,21,46,.18);
    }
    .tool-detail-page .tool-hero::before{
      position:absolute;
      top:-160px;
      right:-110px;
      width:420px;
      height:420px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:50%;
      box-shadow:
        0 0 0 55px rgba(255,255,255,.025),
        0 0 0 110px rgba(255,255,255,.018);
      content:"";
    }
    .tool-detail-page .tool-hero::after{
      position:absolute;
      right:13%;
      bottom:-80px;
      width:220px;
      height:220px;
      background:var(--theme);
      border-radius:50%;
      content:"";
      filter:blur(90px);
      opacity:.6;
    }
    .tool-detail-page .tool-kicker{
      position:relative;
      z-index:1;
      margin-bottom:16px;
      display:flex;
      align-items:center;
      gap:9px;
      color:#bcd3ff;
      font-size:13px;
      font-weight:800;
      letter-spacing:.12em;
    }
    .tool-detail-page .tool-kicker::before{
      width:30px;
      height:2px;
      background:#79a6ff;
      content:"";
    }
    .tool-detail-page .tool-title-row{
      position:relative;
      z-index:1;
      max-width:870px;
      display:flex;
      align-items:center;
      gap:22px;
    }
    .tool-detail-page .tool-icon{
      width:82px;
      height:82px;
      flex:0 0 82px;
      padding:14px;
      object-fit:contain;
      background:#fff;
      border:1px solid rgba(255,255,255,.35);
      border-radius:20px;
    }
    .tool-detail-page h1{
      margin:0;
      font-size:clamp(34px,5vw,62px);
      line-height:1.12;
      letter-spacing:-.035em;
    }
    .tool-detail-page .tool-summary{
      position:relative;
      z-index:1;
      max-width:800px;
      margin:22px 0 0;
      color:#cdd8eb;
      font-size:17px;
      line-height:1.9;
    }
    .tool-detail-page .tool-meta{
      position:relative;
      z-index:1;
      margin-top:28px;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tool-detail-page .tool-meta span{
      padding:8px 12px;
      color:#dce8ff;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
      border-radius:999px;
      font-size:13px;
    }
    .tool-detail-page .detail-layout{
      padding:48px 0 72px;
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      align-items:start;
      gap:30px;
    }
    .tool-detail-page .tool-article,
    .tool-detail-page .related-panel,
    .tool-detail-page .usage-note{
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .tool-detail-page .tool-article{
      min-width:0;
      max-width:100%;
      padding:34px;
      overflow-x:auto;
    }
    .tool-detail-page .section-label{
      margin:0 0 22px;
      padding-bottom:15px;
      border-bottom:1px solid var(--line);
      color:#17233a;
      font-size:22px;
    }
    .tool-detail-page .section-label::before{
      width:5px;
      height:22px;
      margin-right:10px;
      display:inline-block;
      vertical-align:-3px;
      background:var(--theme);
      border-radius:4px;
      content:"";
    }
    .tool-detail-page .tool-content{
      min-width:0;
      max-width:100%;
      overflow-x:auto;
      color:#334155;
      font-size:16px;
      line-height:1.95;
      overflow-wrap:anywhere;
    }
    .tool-detail-page .tool-content h2,
    .tool-detail-page .tool-content h3,
    .tool-detail-page .tool-content h4{
      margin:1.6em 0 .7em;
      color:#111827;
      line-height:1.4;
    }
    .tool-detail-page .tool-content h2{
      padding-left:12px;
      border-left:4px solid var(--theme);
      font-size:25px;
    }
    .tool-detail-page .tool-content h3{font-size:20px}
    .tool-detail-page .tool-content p{margin:0 0 1.2em}
    .tool-detail-page .tool-content a{
      color:var(--theme);
      text-decoration:underline;
      text-underline-offset:3px;
    }
    .tool-detail-page .tool-content img,
    .tool-detail-page .tool-content video,
    .tool-detail-page .tool-content iframe{
      max-width:100%;
      height:auto;
      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:11px 13px;
      border:1px solid var(--line);
      text-align:left;
    }
    .tool-detail-page .tool-content th{background:#f1f5f9}
    .tool-detail-page .tool-content pre{
      max-width:100%;
      padding:18px;
      overflow:auto;
      color:#d8e7ff;
      background:#07152e;
      border-radius:12px;
    }
    .tool-detail-page .usage-note{
      margin-top:22px;
      padding:24px;
      box-shadow:none;
      background:#f7faff;
      border-color:#cad9f3;
    }
    .tool-detail-page .usage-note h2{
      margin:0 0 9px;
      color:var(--theme);
      font-size:18px;
    }
    .tool-detail-page .usage-note p{
      margin:0;
      color:#526078;
      font-size:14px;
    }
    .tool-detail-page .detail-sidebar{
      position:sticky;
      top:24px;
      min-width:0;
    }
    .tool-detail-page .related-panel{padding:24px}
    .tool-detail-page .related-panel h2{
      margin:0 0 17px;
      color:#17233a;
      font-size:20px;
    }
    .tool-detail-page .related-tool{
      padding:15px 0;
      display:grid;
      grid-template-columns:48px minmax(0,1fr);
      gap:12px;
      border-top:1px solid var(--line);
    }
    .tool-detail-page .related-tool:first-of-type{border-top:0}
    .tool-detail-page .related-tool img{
      width:48px;
      height:48px;
      padding:7px;
      object-fit:contain;
      background:#f4f7fc;
      border:1px solid var(--line);
      border-radius:11px;
    }
    .tool-detail-page .related-tool strong{
      display:block;
      overflow:hidden;
      color:#1d293d;
      font-size:15px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .tool-detail-page .related-tool span{
      margin-top:4px;
      display:-webkit-box;
      overflow:hidden;
      color:#64748b;
      font-size:13px;
      line-height:1.55;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
    }
    .tool-detail-page .related-tool:hover strong{color:var(--theme)}
    .tool-detail-page .sidebar-cta{
      margin-top:18px;
      padding:25px;
      color:#fff;
      background:linear-gradient(145deg,var(--theme),var(--theme-dark));
      border-radius:var(--radius);
    }
    .tool-detail-page .sidebar-cta strong{
      display:block;
      margin-bottom:8px;
      font-size:19px;
    }
    .tool-detail-page .sidebar-cta p{
      margin:0 0 17px;
      color:#d7e4fb;
      font-size:14px;
    }
    .tool-detail-page .sidebar-cta a{
      padding:10px 14px;
      display:inline-flex;
      background:#fff;
      border-radius:9px;
      color:var(--theme);
      font-size:14px;
      font-weight:800;
    }

    .footer{
      padding:60px 0 0;
      color:#cbd5e1;
      background:#07152e;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr 1fr 1fr 1.1fr;
      gap:42px;
    }
    .footer-brand{
      margin-bottom:13px;
      color:#fff;
      font-size:23px;
      font-weight:900;
    }
    .footer h3{
      margin:0 0 15px;
      color:#fff;
      font-size:16px;
    }
    .footer p{
      margin:0 0 9px;
      color:#9eacc1;
      font-size:14px;
      line-height:1.75;
    }
    .footer-grid>div>a{
      margin-bottom:9px;
      display:block;
      color:#b7c3d6;
      font-size:14px;
    }
    .footer-grid>div>a:hover{color:#fff}
    .footer-bottom{
      margin-top:42px;
      padding:20px 0;
      display:flex;
      justify-content:space-between;
      gap:20px;
      border-top:1px solid rgba(255,255,255,.1);
      color:#8492a8;
      font-size:13px;
    }

    @media (max-width:1120px){
      .main-nav{display:none}
      .header-inner{min-height:70px}
      .header-btns{margin-left:auto}
      .hamburger{display:flex}
      .tool-detail-page .detail-layout{
        grid-template-columns:minmax(0,1fr) 300px;
      }
    }
    @media (max-width:820px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{padding:8px 0;align-items:flex-start}
      .topbar-info{align-items:flex-end;flex-direction:column;gap:1px}
      .logo{min-width:0}
      .logo span{max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .member-link{display:none}
      .tool-detail-page .tool-hero{padding:32px 24px}
      .tool-detail-page .tool-title-row{align-items:flex-start;flex-direction:column;gap:15px}
      .tool-detail-page .tool-icon{width:68px;height:68px;flex-basis:68px}
      .tool-detail-page .detail-layout{grid-template-columns:1fr}
      .tool-detail-page .detail-sidebar{position:static}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:560px){
      .container{width:min(100% - 22px,1180px)}
      .topbar-inner{display:block}
      .topbar-info{margin-top:3px;align-items:flex-start}
      .header-btns{gap:7px}
      .open-link{padding:8px 11px}
      .logo img{width:38px;height:38px}
      .logo span{max-width:125px;font-size:16px}
      .tool-detail-page .tool-breadcrumb{padding-top:16px}
      .tool-detail-page .tool-hero{padding:27px 20px;border-radius:19px}
      .tool-detail-page h1{font-size:34px}
      .tool-detail-page .tool-summary{font-size:15px}
      .tool-detail-page .detail-layout{padding:30px 0 50px}
      .tool-detail-page .tool-article{padding:22px 18px}
      .tool-detail-page .tool-content{font-size:15px}
      .tool-detail-page .related-panel{padding:20px}
      .footer{padding-top:44px}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .footer-bottom{align-items:flex-start;flex-direction:column;gap:5px}
    }