:root{--primary:#0B3D91;--accent:#0891B2;--dark:#17212b;--muted:#64748b;--line:#dbe7ee;--soft:#f1fbfd;--white:#fff;--shadow:0 18px 48px rgba(15,45,65,.1)}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--dark);background:#f8fbfc;font-family:"Noto Sans TC","PingFang HK","Microsoft JhengHei",sans-serif;line-height:1.65}
    body.drawer-open{overflow:hidden}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin-inline:auto}
    .topbar{color:#dff9ff;background:#10232d;font-size:13px}
    .topbar .container{display:flex;align-items:center;justify-content:space-between;min-height:38px;gap:20px}
    .topbar-links{display:flex;gap:22px}
    .topbar a:hover{color:#fff}
    .header{position:sticky;z-index:50;top:0;border-bottom:1px solid rgba(8,145,178,.13);background:rgba(255,255,255,.96);backdrop-filter:blur(14px)}
    .header-inner{display:flex;align-items:center;min-height:78px;gap:28px}
    .logo{display:flex;align-items:center;flex-shrink:0;gap:10px;color:var(--primary);font-size:20px;font-weight:800}
    .logo img{width:42px;height:42px;object-fit:contain}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:center;gap:3px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;min-height:78px;padding:0 12px;font-size:15px;font-weight:700}
    .nav-link:hover{color:var(--accent)}
    .has-arrow::after{width:7px;height:7px;margin:-4px 0 0 8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;content:"";transform:rotate(45deg)}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% + 1px);left:50%;visibility:hidden;width:290px;padding:18px;border:1px solid var(--line);border-radius:0 0 16px 16px;background:#fff;box-shadow:var(--shadow);opacity:0;transform:translate(-50%,10px);transition:.2s}
    .mega-menu{width:660px}
    .nav-item:hover>.dropdown-panel,.nav-item:hover>.mega-menu{visibility:visible;opacity:1;transform:translate(-50%,0)}
    .dropdown-panel>a{display:block;padding:9px 10px;border-radius:8px;color:#334155}
    .dropdown-panel>a:hover,.mega-card:hover{color:var(--primary);background:var(--soft)}
    .mega-title{margin:0 0 10px;color:var(--primary);font-weight:800}
    .mega-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
    .mega-card{display:grid;grid-template-columns:auto 1fr;gap:2px 10px;padding:10px;border-radius:10px}
    .mega-card img{grid-row:1/3;width:34px;height:34px;object-fit:contain}
    .mega-card strong,.mega-card small{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .mega-card small{color:var(--muted)}
    .mega-footer{display:block;margin-top:12px;padding:10px;border-radius:10px;color:#fff!important;text-align:center;background:var(--primary)}
    .header-btns{display:flex;align-items:center;gap:9px}
    .member-btn,.open-btn{padding:10px 15px;border-radius:9px;font-size:14px;font-weight:800}
    .member-btn{color:var(--primary);border:1px solid #b8cadf}
    .open-btn{color:#fff;background:var(--primary)}
    .hamburger{display:none;width:44px;height:44px;padding:10px;border:0;border-radius:9px;background:var(--soft);cursor:pointer}
    .hamburger span{display:block;width:23px;height:2px;margin:5px auto;background:var(--dark);transition:.2s}
    .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;z-index:89;inset:0;visibility:hidden;background:rgba(4,20,29,.55);opacity:0;transition:.25s}
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{position:fixed;z-index:90;top:0;right:0;width:min(390px,90vw);height:100%;overflow-y:auto;background:#fff;box-shadow:-20px 0 50px rgba(0,0,0,.16);transform:translateX(105%);transition:.28s}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:12px;padding:18px;border-bottom:1px solid var(--line);color:var(--primary);font-weight:800}
    .drawer-head>a{padding:8px 12px;border-radius:8px;background:var(--soft)}
    .drawer-close{margin-left:auto;border:0;background:none;font-size:30px;cursor:pointer}
    .drawer-menu{padding:14px 18px 28px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 7px;border:0;border-bottom:1px solid #edf2f5;background:none;color:var(--dark);text-align:left;font-weight:750;cursor:pointer}
    .drawer-toggle::after{float:right;content:"＋"}
    .drawer-toggle.active::after{content:"－"}
    .drawer-submenu{display:none;padding:7px 0 8px 13px;border-left:2px solid #b9e6ef}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px;color:var(--muted)}
    .tools-page{min-height:680px}
    .tools-page .tools-hero{position:relative;overflow:hidden;padding:84px 0 72px;color:#fff;background:linear-gradient(135deg,#10232d 0%,#0b3d91 56%,#0891b2 100%)}
    .tools-page .tools-hero::before,.tools-page .tools-hero::after{position:absolute;border-radius:50%;content:"";filter:blur(2px)}
    .tools-page .tools-hero::before{top:-160px;right:-80px;width:420px;height:420px;border:72px solid rgba(255,255,255,.06)}
    .tools-page .tools-hero::after{bottom:-130px;left:8%;width:260px;height:260px;background:rgba(65,220,232,.09)}
    .tools-page .hero-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;border:1px solid rgba(255,255,255,.25);border-radius:999px;color:#bdf6ff;background:rgba(255,255,255,.08);font-size:13px;font-weight:800;letter-spacing:.08em}
    .tools-page .eyebrow::before{width:8px;height:8px;border-radius:50%;background:#58e5d5;box-shadow:0 0 0 5px rgba(88,229,213,.14);content:""}
    .tools-page h1{margin:0;font-size:clamp(38px,6vw,66px);line-height:1.12;letter-spacing:-.04em}
    .tools-page .lead{max-width:700px;margin:20px auto 0;color:#dcf8fc;font-size:18px}
    .tools-page .tool-search{display:flex;max-width:650px;margin:32px auto 0;padding:7px;border:1px solid rgba(255,255,255,.3);border-radius:15px;background:#fff;box-shadow:0 18px 40px rgba(2,20,31,.23)}
    .tools-page .tool-search input{min-width:0;flex:1;padding:12px 15px;border:0;outline:0;color:var(--dark);background:transparent}
    .tools-page .tool-search button{padding:11px 22px;border:0;border-radius:10px;color:#fff;background:var(--accent);font-weight:800;cursor:pointer}
    .tools-page .feature-strip{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);margin-top:-28px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow)}
    .tools-page .feature-item{padding:22px 26px}
    .tools-page .feature-item+ .feature-item{border-left:1px solid var(--line)}
    .tools-page .feature-item strong{display:block;color:var(--primary);font-size:17px}
    .tools-page .feature-item span{color:var(--muted);font-size:14px}
    .tools-page .tools-section{padding:78px 0 92px}
    .tools-page .section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}
    .tools-page .section-heading h2{margin:0 0 7px;color:#10232d;font-size:34px}
    .tools-page .section-heading p{max-width:670px;margin:0;color:var(--muted)}
    .tools-page .section-badge{flex-shrink:0;padding:8px 13px;border-radius:999px;color:#087e99;background:#dff8fb;font-size:13px;font-weight:800}
    .tools-page .tools-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
    .tools-page .tool-card{position:relative;display:flex;min-width:0;min-height:250px;flex-direction:column;padding:26px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 8px 28px rgba(24,63,81,.06);transition:.25s}
    .tools-page .tool-card:hover{border-color:#89cfdd;box-shadow:0 20px 45px rgba(8,87,112,.13);transform:translateY(-5px)}
    .tools-page .tool-icon{display:grid;width:58px;height:58px;margin-bottom:20px;place-items:center;border-radius:16px;background:linear-gradient(145deg,#e3fafe,#e9effb)}
    .tools-page .tool-icon img{width:34px;height:34px;object-fit:contain}
    .tools-page .tool-card h3{margin:0 0 10px;color:#14324a;font-size:20px}
    .tools-page .tool-card p{display:-webkit-box;overflow:hidden;margin:0 0 22px;color:var(--muted);-webkit-box-orient:vertical;-webkit-line-clamp:3}
    .tools-page .tool-link{display:flex;align-items:center;justify-content:space-between;margin-top:auto;color:var(--primary);font-weight:800}
    .tools-page .tool-link::after{content:"→";font-size:20px;transition:.2s}
    .tools-page .tool-card:hover .tool-link::after{transform:translateX(4px)}
    .tools-page .guidance{padding:0 0 90px}
    .tools-page .guidance-panel{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:42px;border-radius:22px;color:#fff;background:#10232d}
    .tools-page .guidance h2{margin:0 0 12px;font-size:31px}
    .tools-page .guidance p{margin:0;color:#c7e3e9}
    .tools-page .guidance-list{display:grid;gap:13px}
    .tools-page .guidance-list span{padding:13px 15px;border:1px solid rgba(255,255,255,.12);border-radius:11px;background:rgba(255,255,255,.05)}
    .footer{padding:60px 0 0;color:#c9d7dc;background:#10232d}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:42px}
    .footer h3,.footer strong{color:#fff}
    .footer h3{margin:0 0 15px;font-size:16px}
    .footer p{color:#9fb3bb}
    .footer a,.footer span{display:block;margin:8px 0}
    .footer a:hover{color:#67e8f9}
    .footer-bottom{display:flex;justify-content:space-between;gap:25px;margin-top:45px;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);font-size:13px}
    .footer-bottom span{margin:0}
    @media(max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{min-height:70px}
      .tools-page .tools-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:720px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{justify-content:center}
      .topbar .container>span{display:none}
      .topbar-links{gap:12px}
      .header-btns .member-btn{display:none}
      .tools-page .tools-hero{padding:62px 0 70px}
      .tools-page .lead{font-size:16px}
      .tools-page .tool-search{align-items:stretch}
      .tools-page .tool-search button{padding-inline:15px}
      .tools-page .feature-strip{grid-template-columns:1fr;margin-top:-22px}
      .tools-page .feature-item+ .feature-item{border-top:1px solid var(--line);border-left:0}
      .tools-page .tools-section{padding:60px 0 70px}
      .tools-page .section-heading{align-items:flex-start;flex-direction:column}
      .tools-page .tools-grid{grid-template-columns:1fr}
      .tools-page .guidance-panel{grid-template-columns:1fr;padding:29px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column}
    }
    @media(max-width:430px){
      .topbar-links a:first-child{display:none}
      .open-btn{display:none}
      .tools-page .tool-search{display:grid}
      .tools-page .tool-search button{width:100%}
    }