:root{
      --theme:#0B3D91;
      --theme-dark:#072b68;
      --theme-light:#eaf1ff;
      --template-theme:{主题色};
      --accent:#ff725e;
      --cream:#fff9ef;
      --ink:#202735;
      --muted:#667085;
      --line:#e5e9f0;
      --white:#fff;
      --page:#f5f7fb;
      --success:#16856b;
      --shadow:0 18px 46px rgba(24,39,75,.11);
      --radius:20px;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--page);
      font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;
      line-height:1.65;
      -webkit-font-smoothing:antialiased;
    }
    body.drawer-lock{overflow:hidden}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{color:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{
      position:relative;
      z-index:80;
      color:#dce7ff;
      background:#061c45;
      font-size:13px;
    }
    .topbar-inner{
      min-height:38px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .topbar-welcome{margin:0}
    .topbar-contact{display:flex;align-items:center;gap:20px}
    .topbar-contact a{transition:color .2s ease}
    .topbar-contact a:hover{color:#fff}

    .header{
      position:sticky;
      z-index:70;
      top:0;
      background:rgba(255,255,255,.96);
      border-bottom:1px solid rgba(11,61,145,.09);
      box-shadow:0 8px 24px rgba(19,39,74,.05);
      backdrop-filter:blur(14px);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:22px;
    }
    .logo{
      min-width:0;
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--theme);
      font-size:19px;
      font-weight:800;
      letter-spacing:-.02em;
    }
    .logo img{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:11px;
    }
    .logo span{
      max-width:180px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }

    .main-nav{margin-left:auto;align-self:stretch}
    .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:stretch;
    }
    .nav-link{
      position:relative;
      display:flex;
      align-items:center;
      padding:0 12px;
      color:#263348;
      font-size:14px;
      font-weight:700;
      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-light);
    }
    .nav-link.has-arrow::after{
      width:6px;
      height:6px;
      margin:-3px 0 0 7px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      content:"";
      transform:rotate(45deg);
      transition:transform .2s ease;
    }
    .nav-item:hover .has-arrow::after,
    .nav-item:focus-within .has-arrow::after{
      margin-top:3px;
      transform:rotate(225deg);
    }

    .dropdown-panel,.mega-menu{
      position:absolute;
      top:100%;
      left:50%;
      z-index:90;
      visibility:hidden;
      opacity:0;
      transform:translate(-50%,10px);
      pointer-events:none;
      transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
    }
    .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:translate(-50%,0);
      pointer-events:auto;
    }
    .dropdown-panel{
      width:330px;
      padding:16px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 16px 16px;
      box-shadow:var(--shadow);
    }
    .dropdown-title{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:0 4px 10px;
      border-bottom:1px solid var(--line);
    }
    .dropdown-title span{font-weight:800}
    .dropdown-title a{color:var(--theme);font-size:12px;font-weight:700}
    .dropdown-article{
      display:block;
      padding:10px 4px;
      border-bottom:1px dashed var(--line);
      color:#354158;
      font-size:14px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .dropdown-article:last-child{border-bottom:0}
    .dropdown-article:hover{color:var(--theme)}

    .mega-menu{
      width:min(760px,calc(100vw - 40px));
      padding:20px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 20px 20px;
      box-shadow:var(--shadow);
    }
    .mega-menu-wide{width:min(900px,calc(100vw - 40px))}
    .mega-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:14px;
    }
    .mega-head strong{color:var(--theme);font-size:17px}
    .mega-head span{color:var(--muted);font-size:12px;text-align:right}
    .mega-categories{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-bottom:15px;
      padding:12px;
      background:var(--theme-light);
      border-radius:12px;
    }
    .mega-categories a{
      padding:5px 10px;
      color:var(--theme);
      background:#fff;
      border:1px solid #dbe7ff;
      border-radius:999px;
      font-size:12px;
      font-weight:700;
    }
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:10px;
    }
    .mega-card{
      min-width:0;
      display:flex;
      align-items:center;
      gap:10px;
      padding:11px;
      background:#f8fafc;
      border:1px solid #edf0f5;
      border-radius:12px;
      transition:transform .2s ease,border-color .2s ease,background .2s ease;
    }
    .mega-card:hover{
      background:#fff;
      border-color:#b8cbec;
      transform:translateY(-2px);
    }
    .mega-card>img{
      flex:0 0 auto;
      width:42px;
      height:42px;
      object-fit:cover;
      border-radius:9px;
      background:#fff;
    }
    .mega-card-body{min-width:0;display:block}
    .mega-card-body strong{
      display:block;
      overflow:hidden;
      color:#202c40;
      font-size:13px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-card-body small{
      display:block;
      overflow:hidden;
      color:var(--muted);
      font-size:11px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-card-body p{
      display:-webkit-box;
      margin:3px 0 0;
      overflow:hidden;
      color:var(--muted);
      font-size:11px;
      line-height:1.45;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
    }
    .video-mega-card>img{width:64px;height:48px}
    .mega-footer{
      display:block;
      margin-top:14px;
      padding:10px;
      color:#fff;
      background:var(--theme);
      border-radius:10px;
      font-size:13px;
      font-weight:800;
      text-align:center;
    }
    .mega-footer:hover{background:var(--theme-dark)}

    .header-btns{
      display:flex;
      align-items:center;
      gap:9px;
    }
    .member-entry{display:flex;align-items:center}
    .account-entry{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:40px;
      padding:0 17px;
      color:#fff;
      background:var(--theme);
      border-radius:10px;
      font-size:14px;
      font-weight:800;
      box-shadow:0 8px 18px rgba(11,61,145,.2);
    }
    .account-entry:hover{background:var(--theme-dark)}
    .hamburger{
      width:42px;
      height:42px;
      display:none;
      align-items:center;
      justify-content:center;
      flex-direction:column;
      gap:5px;
      padding:0;
      background:#fff;
      border:1px solid var(--line);
      border-radius:10px;
      cursor:pointer;
    }
    .hamburger span{
      width:19px;
      height:2px;
      background:var(--ink);
      border-radius:2px;
      transition:transform .2s ease,opacity .2s 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(4,16,36,.6);
      transition:opacity .25s ease,visibility .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:100dvh;
      overflow-y:auto;
      background:#fff;
      box-shadow:-20px 0 50px rgba(7,25,58,.22);
      transform:translateX(105%);
      transition:transform .28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:72px;
      display:flex;
      align-items:center;
      gap:10px;
      padding:14px 18px;
      color:#fff;
      background:var(--theme);
    }
    .drawer-head>a{
      padding:7px 12px;
      color:var(--theme);
      background:#fff;
      border-radius:8px;
      font-weight:800;
    }
    .drawer-close{
      width:38px;
      height:38px;
      margin-left:auto;
      padding:0;
      color:#fff;
      background:rgba(255,255,255,.13);
      border:1px solid rgba(255,255,255,.25);
      border-radius:9px;
      font-size:27px;
      line-height:1;
      cursor:pointer;
    }
    .drawer-menu{padding:14px 18px 30px}
    .drawer-link,.drawer-toggle{
      width:100%;
      display:flex;
      align-items:center;
      min-height:49px;
      padding:0 4px;
      background:none;
      border:0;
      border-bottom:1px solid var(--line);
      font-size:15px;
      font-weight:800;
      text-align:left;
      cursor:pointer;
    }
    .drawer-toggle::after{
      width:8px;
      height:8px;
      margin-left:auto;
      border-right:2px solid var(--theme);
      border-bottom:2px solid var(--theme);
      content:"";
      transform:rotate(45deg);
      transition:transform .2s ease;
    }
    .drawer-toggle.active::after{transform:rotate(225deg)}
    .drawer-submenu{
      display:none;
      padding:8px 0 10px 13px;
      border-left:2px solid #d9e5fb;
    }
    .drawer-submenu.open{display:block}
    .drawer-submenu a{
      display:block;
      padding:8px 10px;
      color:#536078;
      font-size:14px;
      border-radius:7px;
    }
    .drawer-submenu a:hover{color:var(--theme);background:var(--theme-light)}

    .tools-page{min-height:620px}
    .tools-page .tools-intro{
      position:relative;
      overflow:hidden;
      padding:76px 0 70px;
      color:#fff;
      background:
        radial-gradient(circle at 12% 15%,rgba(255,114,94,.28),transparent 26%),
        radial-gradient(circle at 88% 80%,rgba(94,151,255,.25),transparent 30%),
        linear-gradient(135deg,#061f4d 0%,#0b3d91 55%,#1657b5 100%);
    }
    .tools-page .tools-intro::before,
    .tools-page .tools-intro::after{
      position:absolute;
      content:"";
      border:1px solid rgba(255,255,255,.14);
      border-radius:50%;
    }
    .tools-page .tools-intro::before{
      width:420px;
      height:420px;
      top:-260px;
      right:9%;
    }
    .tools-page .tools-intro::after{
      width:280px;
      height:280px;
      bottom:-190px;
      left:7%;
    }
    .tools-page .intro-content{
      position:relative;
      z-index:1;
      max-width:820px;
      margin:auto;
      text-align:center;
    }
    .tools-page .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:18px;
      padding:7px 13px;
      color:#fff;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.2);
      border-radius:999px;
      font-size:13px;
      font-weight:800;
    }
    .tools-page .eyebrow::before{
      width:8px;
      height:8px;
      background:var(--accent);
      border-radius:50%;
      box-shadow:0 0 0 5px rgba(255,114,94,.16);
      content:"";
    }
    .tools-page .tools-intro h1{
      margin:0;
      font-size:clamp(34px,5vw,58px);
      line-height:1.16;
      letter-spacing:-.045em;
    }
    .tools-page .tools-intro p{
      max-width:700px;
      margin:20px auto 0;
      color:#dbe7ff;
      font-size:17px;
    }
    .tools-page .intro-points{
      display:flex;
      justify-content:center;
      flex-wrap:wrap;
      gap:10px;
      margin-top:28px;
    }
    .tools-page .intro-points span{
      padding:8px 13px;
      color:#e9f1ff;
      background:rgba(5,24,58,.28);
      border:1px solid rgba(255,255,255,.15);
      border-radius:10px;
      font-size:13px;
    }

    .tools-page .tool-directory{padding:70px 0}
    .tools-page .section-heading{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:28px;
    }
    .tools-page .section-kicker{
      display:block;
      margin-bottom:7px;
      color:var(--accent);
      font-size:13px;
      font-weight:900;
      letter-spacing:.12em;
    }
    .tools-page .section-heading h2{
      margin:0;
      color:#16243a;
      font-size:32px;
      line-height:1.25;
    }
    .tools-page .section-heading p{
      max-width:520px;
      margin:0;
      color:var(--muted);
      text-align:right;
    }
    .tools-page .tools-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:20px;
    }
    .tools-page .tool-card{
      position:relative;
      min-width:0;
      min-height:272px;
      display:flex;
      flex-direction:column;
      padding:25px;
      overflow:hidden;
      background:#fff;
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:0 8px 28px rgba(22,36,58,.06);
      transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
    }
    .tools-page .tool-card::after{
      position:absolute;
      top:-36px;
      right:-36px;
      width:110px;
      height:110px;
      background:var(--theme-light);
      border-radius:50%;
      content:"";
      transition:transform .25s ease;
    }
    .tools-page .tool-card:hover{
      border-color:#b7c9ea;
      box-shadow:0 18px 38px rgba(11,61,145,.13);
      transform:translateY(-5px);
    }
    .tools-page .tool-card:hover::after{transform:scale(1.16)}
    .tools-page .tool-icon{
      position:relative;
      z-index:1;
      width:58px;
      height:58px;
      display:flex;
      align-items:center;
      justify-content:center;
      margin-bottom:20px;
      padding:10px;
      background:linear-gradient(145deg,#eff5ff,#fff);
      border:1px solid #dce7fa;
      border-radius:16px;
      box-shadow:0 8px 18px rgba(11,61,145,.1);
    }
    .tools-page .tool-icon img{
      width:100%;
      height:100%;
      object-fit:contain;
    }
    .tools-page .tool-card h3{
      position:relative;
      z-index:1;
      margin:0 0 10px;
      color:#17243a;
      font-size:20px;
      line-height:1.35;
    }
    .tools-page .tool-card p{
      position:relative;
      z-index:1;
      display:-webkit-box;
      margin:0 0 20px;
      overflow:hidden;
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:3;
    }
    .tools-page .tool-action{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-top:auto;
      padding-top:15px;
      color:var(--theme);
      border-top:1px solid #edf0f5;
      font-size:14px;
      font-weight:900;
    }
    .tools-page .tool-action::after{
      content:"→";
      font-size:20px;
      transition:transform .2s ease;
    }
    .tools-page .tool-card:hover .tool-action::after{transform:translateX(4px)}

    .tools-page .usage-section{padding:0 0 72px}
    .tools-page .usage-panel{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:34px;
      padding:38px;
      background:var(--cream);
      border:1px solid #f1dfc4;
      border-radius:26px;
    }
    .tools-page .usage-copy h2{
      margin:0 0 13px;
      color:#2b2b31;
      font-size:30px;
      line-height:1.3;
    }
    .tools-page .usage-copy>p{margin:0;color:#69635c}
    .tools-page .usage-steps{
      display:grid;
      gap:12px;
      margin-top:25px;
    }
    .tools-page .usage-step{
      display:flex;
      align-items:flex-start;
      gap:13px;
      padding:13px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(211,187,153,.48);
      border-radius:13px;
    }
    .tools-page .usage-step b{
      flex:0 0 auto;
      width:30px;
      height:30px;
      display:grid;
      place-items:center;
      color:#fff;
      background:var(--accent);
      border-radius:9px;
      font-size:13px;
    }
    .tools-page .usage-step strong{display:block;margin-bottom:2px}
    .tools-page .usage-step span{color:#766e65;font-size:13px}
    .tools-page .notice-card{
      align-self:stretch;
      padding:27px;
      color:#fff;
      background:#292d35;
      border-radius:20px;
      box-shadow:0 18px 34px rgba(34,37,43,.18);
    }
    .tools-page .notice-card .notice-label{
      display:inline-block;
      padding:5px 10px;
      color:#292d35;
      background:#ffcf86;
      border-radius:999px;
      font-size:12px;
      font-weight:900;
    }
    .tools-page .notice-card h3{margin:18px 0 10px;font-size:23px}
    .tools-page .notice-card p{margin:0;color:#d9dce3;font-size:14px}
    .tools-page .notice-list{
      margin:20px 0 0;
      padding:0;
      list-style:none;
    }
    .tools-page .notice-list li{
      position:relative;
      padding:10px 0 10px 24px;
      border-bottom:1px solid rgba(255,255,255,.1);
      color:#f1f3f7;
      font-size:14px;
    }
    .tools-page .notice-list li::before{
      position:absolute;
      left:0;
      color:#ffcf86;
      content:"✓";
      font-weight:900;
    }

    .tools-page .tools-cta{padding:0 0 80px}
    .tools-page .cta-box{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:30px;
      padding:34px 38px;
      color:#fff;
      background:linear-gradient(120deg,var(--theme-dark),var(--theme));
      border-radius:24px;
      box-shadow:0 20px 45px rgba(11,61,145,.2);
    }
    .tools-page .cta-box h2{margin:0 0 8px;font-size:27px}
    .tools-page .cta-box p{margin:0;color:#dbe8ff}
    .tools-page .cta-button{
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      padding:0 21px;
      color:#27303e;
      background:#fff;
      border-radius:12px;
      font-weight:900;
    }

    .footer{
      color:#cad4e5;
      background:#07172f;
    }
    .footer-main{
      display:grid;
      grid-template-columns:1.45fr .8fr .8fr .9fr;
      gap:44px;
      padding:60px 0 42px;
    }
    .footer .logo{color:#fff}
    .footer-brand p{
      max-width:410px;
      margin:18px 0;
      color:#aebbd0;
      font-size:14px;
    }
    .footer-social{color:#fff}
    .footer h3{
      margin:4px 0 16px;
      color:#fff;
      font-size:16px;
    }
    .footer-links,.footer-contact{display:grid;gap:10px}
    .footer-links a,.footer-contact a{
      width:max-content;
      max-width:100%;
      color:#aebbd0;
      font-size:14px;
      transition:color .2s ease;
    }
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-contact span{color:#73839d;font-size:12px}
    .footer-bottom{
      min-height:70px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      border-top:1px solid rgba(255,255,255,.1);
      color:#8795aa;
      font-size:13px;
    }
    .footer-bottom-links{display:flex;gap:18px}
    .footer-bottom-links a:hover{color:#fff}

    @media (max-width:1120px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-btns{margin-left:auto}
      .tools-page .tools-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-main{grid-template-columns:1.2fr repeat(3,1fr);gap:25px}
    }

    @media (max-width:820px){
      .topbar-welcome{display:none}
      .topbar-inner{justify-content:center}
      .header-inner{min-height:70px}
      .member-entry{display:none}
      .tools-page .tools-intro{padding:58px 0}
      .tools-page .section-heading{display:block}
      .tools-page .section-heading p{margin-top:10px;text-align:left}
      .tools-page .usage-panel{grid-template-columns:1fr;padding:26px}
      .tools-page .cta-box{align-items:flex-start;flex-direction:column}
      .footer-main{grid-template-columns:repeat(2,minmax(0,1fr))}
    }

    @media (max-width:580px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-contact{width:100%;justify-content:space-between;gap:8px}
      .topbar-contact a{font-size:11px}
      .logo img{width:37px;height:37px}
      .logo span{max-width:130px;font-size:16px}
      .account-entry{min-height:38px;padding:0 13px}
      .tools-page .tools-intro h1{font-size:34px}
      .tools-page .tools-intro p{font-size:15px}
      .tools-page .tool-directory{padding:52px 0}
      .tools-page .section-heading h2{font-size:27px}
      .tools-page .tools-grid{grid-template-columns:1fr}
      .tools-page .tool-card{min-height:245px}
      .tools-page .usage-copy h2{font-size:25px}
      .tools-page .cta-box{padding:27px 24px}
      .tools-page .cta-button{width:100%}
      .footer-main{grid-template-columns:1fr;padding:45px 0 32px}
      .footer-bottom{align-items:flex-start;flex-direction:column;padding:20px 0}
      .footer-bottom-links{flex-wrap:wrap}
    }