:root{
      --theme:#0B3D91;
      --ink:#15233b;
      --muted:#64748b;
      --line:#dbe4ef;
      --paper:#f6f9fc;
      --white:#fff;
      --accent:#35b7a4;
      --shadow:0 18px 45px rgba(15,35,65,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--paper);font-family:Inter,"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;line-height:1.7}
    body.drawer-locked{overflow:hidden}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{background:#0e1b32;color:#cbd5e1;font-size:13px}
    .topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-contact{display:flex;gap:20px}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:20;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}
    .header-inner{min-height:76px;display:flex;align-items:center;gap:28px}
    .logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;white-space:nowrap;color:var(--ink)}
    .logo img{width:34px;height:34px;object-fit:contain}
    .logo span{font-size:18px;letter-spacing:.02em}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:stretch;justify-content:center;gap:2px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;height:76px;padding:0 14px;font-size:14px;font-weight:700;color:#34445d;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .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:50%;z-index:30;visibility:hidden;opacity:0;transform:translate(-50%,8px);transition:.2s ease;background:#fff;border:1px solid var(--line);border-radius:0 0 16px 16px;box-shadow:var(--shadow);pointer-events:none}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;top:-12px;left:0;right:0;height:12px}
    .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:260px;padding:12px}
    .dropdown-panel a{display:block;padding:10px 12px;border-radius:8px;font-size:14px}
    .dropdown-panel a:hover{background:#eef4fb;color:var(--theme)}
    .dropdown-panel .dropdown-all{margin-top:6px;border-top:1px solid var(--line);border-radius:0;color:var(--theme);font-weight:700}
    .mega-menu{width:min(700px,calc(100vw - 28px));padding:22px}
    .mega-head{display:flex;align-items:baseline;justify-content:space-between;gap:15px;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--line)}
    .mega-head strong{font-size:17px}.mega-head span{font-size:12px;color:var(--muted)}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{display:flex;gap:9px;min-width:0;padding:10px;border:1px solid #e5ebf2;border-radius:11px}
    .mega-card:hover{border-color:#9eb7da;background:#f7faff}
    .mega-card>img{width:38px;height:38px;object-fit:cover;border-radius:8px;background:#edf2f7}
    .mega-card-body{min-width:0;display:grid;gap:1px}
    .mega-card-body strong,.mega-card-body small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .mega-card-body strong{font-size:13px}.mega-card-body small{font-size:10px;color:var(--muted)}
    .mega-categories{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
    .mega-categories a{padding:5px 10px;border-radius:999px;background:#eef4fb;color:var(--theme);font-size:12px}
    .mega-footer{display:block;margin-top:17px;padding-top:14px;border-top:1px solid var(--line);color:var(--theme);font-size:13px;font-weight:800}
    .header-btns{display:flex;align-items:center;gap:12px}
    .account-btn{padding:9px 16px;border-radius:9px;background:var(--theme);color:#fff;font-size:13px;font-weight:800}
    .account-btn:hover{background:#092f70}
    .hamburger{display:none;width:42px;height:42px;padding:10px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}
    .hamburger span{display:block;height:2px;margin:5px 0;background:var(--ink);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:40;background:rgba(9,21,40,.5);opacity:0;visibility:hidden;transition:.25s}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;z-index:50;width:min(390px,88vw);overflow:auto;background:#fff;transform:translateX(100%);transition:.3s ease;box-shadow:-15px 0 40px rgba(0,0,0,.18)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:15px;padding:20px;border-bottom:1px solid var(--line)}
    .drawer-head>a{margin-left:auto;padding:7px 12px;border-radius:7px;background:var(--theme);color:#fff;font-size:13px;font-weight:700}
    .drawer-close{width:34px;height:34px;border:0;background:transparent;color:var(--muted);font-size:28px;line-height:1;cursor:pointer}
    .drawer-menu{padding:10px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;color:var(--ink);font-weight:700;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px;font-weight:400}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 15px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}
    .drawer-submenu a:hover{color:var(--theme)}
    .tools-page{padding-bottom:80px}
    .tools-hero{position:relative;overflow:hidden;padding:78px 0 66px;background:linear-gradient(135deg,#0b3d91 0%,#102e61 52%,#0d9488 150%);color:#fff}
    .tools-hero:before,.tools-hero:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.13);border-radius:50%}
    .tools-hero:before{width:520px;height:520px;right:-180px;top:-260px}
    .tools-hero:after{width:700px;height:700px;left:-420px;bottom:-550px}
    .tools-hero .container{position:relative;z-index:1}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 16px;color:#a8e8df;font-size:13px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before{content:"";width:28px;height:2px;background:#55d0bd}
    .tools-hero h1{max-width:700px;margin:0;font-size:clamp(34px,5vw,64px);line-height:1.12;letter-spacing:-.04em}
    .tools-hero p{max-width:650px;margin:20px 0 0;color:#dbeafe;font-size:17px}
    .tool-stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
    .tool-stat{min-width:135px;padding:13px 17px;border:1px solid rgba(255,255,255,.2);border-radius:12px;background:rgba(255,255,255,.1);backdrop-filter:blur(8px)}
    .tool-stat strong{display:block;font-size:23px;line-height:1.2}.tool-stat span{font-size:12px;color:#bfdbfe}
    .tools-content{padding-top:48px}
    .tools-toolbar{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:25px}
    .section-kicker{margin:0 0 5px;color:var(--theme);font-size:12px;font-weight:800;letter-spacing:.12em}
    .tools-toolbar h2{margin:0;font-size:30px;line-height:1.25}
    .tools-toolbar p{margin:6px 0 0;color:var(--muted);font-size:14px}
    .tool-filter{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
    .tool-filter span{padding:7px 13px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);font-size:12px}
    .tool-filter span:first-child{border-color:#b7c9e4;background:#eaf1fb;color:var(--theme);font-weight:700}
    .tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .tool-card{display:flex;flex-direction:column;min-height:265px;padding:23px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 5px 18px rgba(18,42,73,.04);transition:.22s ease}
    .tool-card:hover{transform:translateY(-5px);border-color:#9db7dc;box-shadow:var(--shadow)}
    .tool-card-top{display:flex;align-items:center;gap:14px}
    .tool-icon{display:grid;place-items:center;width:54px;height:54px;flex:none;border-radius:15px;background:#e9f1fb;color:var(--theme);font-size:22px;font-weight:800}
    .tool-icon img{width:34px;height:34px;object-fit:contain}
    .tool-card h3{margin:0;font-size:18px;line-height:1.35}
    .tool-card .tool-label{margin:3px 0 0;color:var(--accent);font-size:11px;font-weight:800}
    .tool-card p{margin:18px 0;color:var(--muted);font-size:14px;line-height:1.75}
    .tool-card-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid #edf1f5}
    .tool-card-footer small{color:#94a3b8;font-size:11px}
    .tool-link{color:var(--theme);font-size:13px;font-weight:800}
    .tool-link:after{content:" →";transition:.2s}
    .tool-card:hover .tool-link:after{padding-left:4px}
    .tools-note{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:34px;padding:24px 28px;border-radius:16px;background:#eaf1fb}
    .tools-note strong{display:block;font-size:17px}.tools-note p{margin:4px 0 0;color:var(--muted);font-size:13px}
    .note-link{padding:10px 17px;border-radius:9px;background:var(--theme);color:#fff;font-size:13px;font-weight:700;white-space:nowrap}
    .footer{background:#0e1b32;color:#bdc9d9;padding:55px 0 20px}
    .footer-main{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
    .footer .logo{color:#fff;margin-bottom:15px}
    .footer-brand p{max-width:330px;margin:0;color:#94a3b8;font-size:13px}
    .footer h3{margin:4px 0 15px;color:#fff;font-size:14px}
    .footer-links{display:grid;gap:8px}
    .footer-links a,.footer-contact a{color:#94a3b8;font-size:13px}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-contact{display:grid;gap:8px}
    .footer-social{color:#94a3b8;font-size:13px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);color:#718096;font-size:12px}
    @media(max-width:1020px){
      .main-nav{display:none}
      .hamburger{display:block}
      .tools-grid{grid-template-columns:repeat(2,1fr)}
      .footer-main{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:640px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{height:auto;min-height:38px;padding:8px 0;align-items:flex-start}
      .topbar-contact{flex-direction:column;gap:0;text-align:right}
      .header-inner{min-height:66px}
      .header-btns .account-btn{display:none}
      .tools-hero{padding:55px 0 48px}
      .tools-hero p{font-size:15px}
      .tool-stat{min-width:110px}
      .tools-toolbar{display:block}
      .tool-filter{justify-content:flex-start;margin-top:15px}
      .tools-grid{grid-template-columns:1fr}
      .tool-card{min-height:240px}
      .tools-note{display:block;padding:20px}
      .note-link{display:inline-block;margin-top:15px}
      .footer-main{grid-template-columns:1fr;gap:26px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:6px}
    }