:root{
      --theme:#0B3D91;
      --template-theme:{主题色};
      --theme-dark:#072b67;
      --theme-light:#eaf1fc;
      --accent:#d92378;
      --ink:#172033;
      --muted:#667085;
      --line:#e3e8f1;
      --surface:#fff;
      --soft:#f5f7fb;
      --shadow:0 16px 42px rgba(11,61,145,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--soft);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.65}
    body.drawer-locked{overflow:hidden}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button,input,select{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{background:var(--theme-dark);color:#dbe8ff;font-size:13px}
    .topbar-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .topbar-contact{display:flex;align-items:center;gap:20px}
    .topbar-contact a:hover{color:#fff}

    .header{position:relative;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{height:78px;display:flex;align-items:center;gap:26px}
    .logo{display:inline-flex;align-items:center;gap:10px;min-width:max-content;font-weight:800;color:var(--theme);font-size:20px}
    .logo img{width:38px;height:38px;object-fit:contain}
    .main-nav{margin-left:auto;height:100%}
    .nav-list{height:100%;display:flex;align-items:center;gap:2px;margin:0;padding:0;list-style:none}
    .nav-item{height:100%;display:flex;align-items:center;position:relative}
    .nav-link{height:100%;display:flex;align-items:center;gap:6px;padding:0 12px;color:#29344a;font-size:15px;font-weight:600;white-space:nowrap}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;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;transform:translate(-50%,10px);pointer-events:none;transition:.2s ease;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;transform:translate(-50%,0);pointer-events:auto}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;bottom:100%;height:10px}
    .dropdown-panel{width:310px;padding:18px;border-radius:0 0 16px 16px}
    .dropdown-title{display:block;color:var(--theme);font-size:13px;font-weight:800;margin-bottom:9px}
    .dropdown-panel>a:not(.dropdown-main){display:block;padding:9px 4px;border-bottom:1px solid #eef1f6;font-size:14px}
    .dropdown-panel>a:hover{color:var(--theme)}
    .dropdown-main{display:flex;justify-content:space-between;margin-top:12px;padding:10px 12px;border-radius:10px;background:var(--theme-light);color:var(--theme);font-weight:700}
    .mega-menu{width:min(960px,calc(100vw - 40px));padding:22px;border-radius:0 0 20px 20px}
    .nav-item:nth-last-child(-n+3) .mega-menu{left:auto;right:-110px;transform:translateY(10px)}
    .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-head{display:flex;align-items:end;justify-content:space-between;gap:20px;padding-bottom:15px;border-bottom:1px solid var(--line)}
    .mega-head strong{font-size:18px;color:var(--theme)}
    .mega-head span{color:var(--muted);font-size:13px}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}
    .mega-card{min-width:0;padding:13px;border:1px solid var(--line);border-radius:13px;background:#fff;transition:.2s}
    .mega-card:hover{border-color:#adc2e5;box-shadow:0 9px 20px rgba(11,61,145,.08);transform:translateY(-2px)}
    .mega-card-top{display:flex;align-items:center;gap:10px}
    .mega-card-top img{width:38px;height:38px;border-radius:9px;object-fit:contain;background:var(--soft)}
    .mega-card strong{display:block;font-size:14px;line-height:1.4}
    .mega-card p{margin:8px 0 0;color:var(--muted);font-size:12px;line-height:1.55;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
    .mega-rating{display:block;color:#b65c00;font-size:12px}
    .mega-meta{display:flex;flex-wrap:wrap;gap:5px 10px;margin-top:9px;color:var(--muted);font-size:11px}
    .mega-categories{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
    .mega-categories a{padding:6px 11px;border-radius:999px;background:var(--theme-light);color:var(--theme);font-size:12px}
    .mega-video-card{display:grid;grid-template-columns:86px 1fr;gap:11px}
    .mega-video-card>img{width:86px;height:70px;border-radius:9px;object-fit:cover}
    .mega-video-copy{min-width:0}
    .mega-video-copy p{margin-top:4px}
    .mega-video-duration{font-size:11px;color:var(--accent)}
    .mega-footer{display:block;margin-top:16px;padding:10px;text-align:center;border-radius:10px;background:var(--theme);color:#fff;font-weight:700;font-size:13px}
    .header-btns{display:flex;align-items:center;gap:9px}
    .member-entry{white-space:nowrap}
    .member-entry a,.account-entry{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:0 14px;border-radius:10px;font-weight:700;font-size:14px}
    .member-entry a{color:var(--theme);border:1px solid #b8c9e5}
    .account-entry{background:var(--theme);color:#fff}
    .hamburger{display:none;width:42px;height:42px;padding:10px;border:0;border-radius:10px;background:var(--theme-light)}
    .hamburger span{display:block;height:2px;margin:5px 0;background:var(--theme);transition:.2s}
    .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;inset:0;z-index:80;background:rgba(8,18,38,.55);opacity:0;visibility:hidden;transition:.25s}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;z-index:90;top:0;right:0;width:min(390px,90vw);height:100dvh;overflow-y:auto;background:#fff;transform:translateX(105%);transition:.28s ease;box-shadow:-20px 0 50px rgba(0,0,0,.18)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{position:sticky;top:0;z-index:2;display:flex;align-items:center;gap:10px;padding:16px;background:#fff;border-bottom:1px solid var(--line)}
    .drawer-head>a,.drawer-head>div a{display:inline-flex;padding:8px 12px;border-radius:8px;background:var(--theme);color:#fff}
    .drawer-close{margin-left:auto;width:38px;height:38px;border:0;border-radius:9px;background:var(--soft);color:var(--ink);font-size:27px;line-height:1}
    .drawer-menu{padding:10px 18px 30px}
    .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;color:var(--ink);font-weight:700}
    .drawer-toggle:after{content:"+";font-size:20px;color:var(--theme)}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:8px 0 8px 14px;border-bottom:1px solid var(--line)}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 4px;color:var(--muted);font-size:14px}
    .drawer-submenu a:hover{color:var(--theme)}

    .tools-page{min-height:700px}
    .tools-page .tools-hero{position:relative;overflow:hidden;padding:74px 0 64px;background:linear-gradient(145deg,#071f4a 0%,#0B3D91 58%,#1558b4 100%);color:#fff}
    .tools-page .tools-hero:before,.tools-page .tools-hero:after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(255,255,255,.12)}
    .tools-page .tools-hero:before{width:450px;height:450px;right:-120px;top:-230px}
    .tools-page .tools-hero:after{width:280px;height:280px;left:-100px;bottom:-190px}
    .tools-page .tools-hero-inner{position:relative;z-index:1;text-align:center}
    .tools-page .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 13px;border:1px solid rgba(255,255,255,.23);border-radius:999px;background:rgba(255,255,255,.08);font-size:13px}
    .tools-page .tools-hero h1{max-width:820px;margin:18px auto 12px;font-size:clamp(34px,5vw,58px);line-height:1.15;letter-spacing:-1px}
    .tools-page .tools-hero p{max-width:750px;margin:0 auto;color:#dce8fb;font-size:17px}
    .tools-page .tool-search{max-width:720px;margin:30px auto 0;display:flex;gap:10px;padding:9px;border-radius:16px;background:#fff;box-shadow:0 20px 45px rgba(0,0,0,.18)}
    .tools-page .tool-search input{min-width:0;flex:1;padding:10px 13px;border:0;outline:0;color:var(--ink)}
    .tools-page .tool-search button{border:0;border-radius:11px;padding:0 22px;background:var(--accent);color:#fff;font-weight:800}
    .tools-page .hero-tags{display:flex;justify-content:center;flex-wrap:wrap;gap:9px;margin-top:20px}
    .tools-page .hero-tags span{padding:5px 10px;border-radius:999px;background:rgba(255,255,255,.1);color:#edf4ff;font-size:12px}

    .tools-page .tools-section{padding:70px 0}
    .tools-page .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:26px}
    .tools-page .section-head h2{margin:0;color:var(--ink);font-size:30px;line-height:1.25}
    .tools-page .section-head p{max-width:630px;margin:7px 0 0;color:var(--muted)}
    .tools-page .section-count{white-space:nowrap;padding:7px 12px;border-radius:999px;background:var(--theme-light);color:var(--theme);font-size:13px;font-weight:800}
    .tools-page .tool-filters{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:27px}
    .tools-page .tool-filters button{padding:9px 15px;border:1px solid var(--line);border-radius:999px;background:#fff;color:#475467}
    .tools-page .tool-filters button.active,.tools-page .tool-filters button:hover{border-color:var(--theme);background:var(--theme);color:#fff}
    .tools-page .tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
    .tools-page .tool-card{position:relative;display:flex;flex-direction:column;min-width:0;min-height:280px;padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 8px 25px rgba(25,45,80,.05);transition:.25s}
    .tools-page .tool-card:hover{transform:translateY(-5px);border-color:#adc3e6;box-shadow:var(--shadow)}
    .tools-page .tool-card:before{content:"";position:absolute;left:0;top:25px;width:4px;height:44px;border-radius:0 5px 5px 0;background:var(--accent)}
    .tools-page .tool-card-head{display:flex;align-items:center;justify-content:space-between;gap:15px}
    .tools-page .tool-icon{width:58px;height:58px;padding:10px;border-radius:15px;background:var(--theme-light);object-fit:contain}
    .tools-page .tool-type{padding:5px 9px;border-radius:999px;background:#f3f4f7;color:var(--muted);font-size:12px}
    .tools-page .tool-card h3{margin:19px 0 8px;font-size:20px;line-height:1.35}
    .tools-page .tool-card p{margin:0 0 22px;color:var(--muted);font-size:14px;line-height:1.75;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}
    .tools-page .tool-card-link{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:15px;border-top:1px solid var(--line);color:var(--theme);font-weight:800}
    .tools-page .tool-card-link span:last-child{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;background:var(--theme-light)}
    .tools-page .workflow{padding:68px 0;background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .tools-page .workflow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
    .tools-page .workflow-card{position:relative;padding:22px;border-radius:16px;background:var(--soft);counter-increment:step}
    .tools-page .workflow-card:before{content:"0" counter(step);display:block;margin-bottom:22px;color:var(--accent);font-size:14px;font-weight:900}
    .tools-page .workflow-card h3{margin:0 0 7px;font-size:17px}
    .tools-page .workflow-card p{margin:0;color:var(--muted);font-size:13px}
    .tools-page .notice{padding:65px 0}
    .tools-page .notice-box{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:34px 38px;border-radius:22px;background:linear-gradient(120deg,#f0f5fd,#fff);border:1px solid #d8e3f4}
    .tools-page .notice-box h2{margin:0 0 7px;font-size:26px}
    .tools-page .notice-box p{max-width:750px;margin:0;color:var(--muted)}
    .tools-page .notice-box a{flex:none;padding:12px 19px;border-radius:11px;background:var(--theme);color:#fff;font-weight:800}

    .footer{background:#09162d;color:#b9c5da}
    .footer-main{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.15fr;gap:42px;padding-top:56px;padding-bottom:42px}
    .footer .logo{color:#fff}
    .footer-brand p{max-width:400px;margin:18px 0;color:#aebbd0;font-size:14px}
    .footer-social{display:flex;flex-wrap:wrap;gap:10px}
    .footer-social a{padding:7px 10px;border:1px solid #2b3c59;border-radius:8px;font-size:13px}
    .footer h2{margin:6px 0 17px;color:#fff;font-size:16px}
    .footer-links,.footer-contact{display:grid;gap:10px;font-size:14px}
    .footer a:hover{color:#fff}
    .footer-contact span{display:block}
    .footer-bottom{min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid #24334d;font-size:13px}
    .footer-bottom-links{display:flex;gap:18px}

    @media (max-width:1120px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{height:70px}
      .header-btns{margin-left:auto}
      .tools-page .tools-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:760px){
      .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}
      .member-entry{display:none}
      .account-entry{min-height:36px;padding:0 11px}
      .logo span{font-size:17px}
      .tools-page .tools-hero{padding:55px 0 48px}
      .tools-page .tools-hero p{font-size:15px}
      .tools-page .tool-search{display:grid}
      .tools-page .tool-search button{min-height:44px}
      .tools-page .tools-section{padding:52px 0}
      .tools-page .section-head{display:block}
      .tools-page .section-count{display:inline-block;margin-top:12px}
      .tools-page .tools-grid,.tools-page .workflow-grid{grid-template-columns:1fr}
      .tools-page .tool-card{min-height:255px}
      .tools-page .workflow{padding:50px 0}
      .tools-page .notice{padding:48px 0}
      .tools-page .notice-box{display:block;padding:26px}
      .tools-page .notice-box a{display:inline-flex;margin-top:20px}
      .footer-main{grid-template-columns:1fr 1fr;gap:30px;padding-top:42px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{padding:18px 0;display:block}
      .footer-bottom-links{margin-top:8px}
    }
    @media (max-width:480px){
      .topbar-contact a:first-child{display:none}
      .footer-main{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .tools-page .tool-filters{flex-wrap:nowrap;overflow-x:auto;padding-bottom:5px}
      .tools-page .tool-filters button{flex:none}
    }