:root{--primary:#0B3D91;--indigo:#172554;--cyan:#22d3ee;--ink:#172033;--muted:#64748b;--line:#e2e8f0;--soft:#f1f5f9;--white:#fff;--radius:18px;--shadow:0 18px 50px rgba(15,23,42,.10)}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:Inter,"Noto Sans KR",Arial,sans-serif;background:#f8fafc;line-height:1.65}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{font:inherit}.container{width:min(1180px,calc(100% - 40px));margin:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:15px;top:15px;z-index:1000;background:#fff;padding:10px 16px;border-radius:8px}
    .topbar{background:var(--indigo);color:#dbeafe;font-size:13px}.topbar-inner{height:38px;display:flex;justify-content:space-between;align-items:center}.topbar p{margin:0}.topbar-contact{display:flex;gap:20px}.topbar-contact a:hover{color:var(--cyan)}
    .header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.header-inner{height:76px;display:flex;align-items:center;gap:28px}.logo{display:flex;align-items:center;gap:10px;font-weight:800;white-space:nowrap;color:var(--indigo)}.logo img{width:34px;height:34px;object-fit:contain}.main-nav{flex:1}.nav-list{display:flex;justify-content:center;align-items:center;gap:4px;list-style:none;padding:0;margin:0}.nav-item{position:relative}.nav-link{display:block;padding:25px 13px;font-size:14px;font-weight:700}.nav-link:hover{color:var(--primary)}.header-btns{display:flex;align-items:center;gap:12px}.member-entry{font-size:14px;font-weight:700}.open-account{background:var(--primary);color:#fff;padding:10px 16px;border-radius:10px;font-size:13px;font-weight:800}.hamburger{display:none;border:0;background:transparent;padding:8px;cursor:pointer}.hamburger span{display:block;width:24px;height:2px;background:var(--indigo);margin:5px 0;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)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:0 0 18px 18px;padding:22px;opacity:0;visibility:hidden;pointer-events:none;transition:.2s;z-index:60}.dropdown-panel{width:300px}.mega-menu{width:780px}.mega-wide{width:920px}.has-panel:after{content:"";position:absolute;left:0;right:0;top:90%;height:20px}.has-panel:hover .dropdown-panel,.has-panel:focus-within .dropdown-panel,.has-panel:hover .mega-menu,.has-panel:focus-within .mega-menu{opacity:1;visibility:visible;pointer-events:auto}.dropdown-title,.mega-title{font-weight:800;color:var(--primary);margin:0 0 12px}.dropdown-article,.panel-more{display:block;padding:8px 0;border-bottom:1px solid var(--line);font-size:13px}.panel-more{border:0;color:var(--primary);font-weight:800;margin-top:8px}.mega-layout{display:grid;grid-template-columns:180px 1fr;gap:20px}.mega-sidebar{font-size:13px;color:var(--muted)}.mega-sidebar p{margin:0 0 12px}.mega-sidebar a{color:var(--primary);font-weight:800}.mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.mega-card{display:block;border:1px solid var(--line);border-radius:12px;padding:10px;min-height:112px;background:#fff}.mega-card:hover{border-color:var(--cyan);transform:translateY(-2px)}.mega-card img{width:42px;height:42px;object-fit:contain;margin-bottom:6px}.mega-card strong{display:block;font-size:13px}.mega-card small{display:block;color:var(--muted);font-size:11px;line-height:1.4;margin-top:4px}.mega-meta{display:flex;gap:8px;flex-wrap:wrap;color:var(--primary);font-size:11px;margin-top:5px}.mega-categories{display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:15px}.mega-categories a{background:var(--soft);padding:5px 9px;border-radius:99px;font-size:11px}
    .drawer-overlay{display:none}.mobile-drawer{position:fixed;right:-390px;top:0;width:min(370px,90vw);height:100vh;background:#fff;z-index:100;padding:22px;overflow:auto;transition:right .25s;box-shadow:-15px 0 40px rgba(15,23,42,.18)}.mobile-drawer.open{right:0}.drawer-overlay.open{display:block;position:fixed;inset:0;background:rgba(15,23,42,.45);z-index:90}.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:20px;border-bottom:1px solid var(--line);font-weight:800}.drawer-head a{color:var(--primary);font-size:13px}.drawer-close{border:0;background:var(--soft);width:34px;height:34px;border-radius:50%;font-size:22px;cursor:pointer}.drawer-menu{padding-top:15px}.drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;font-weight:700;color:var(--ink);cursor:pointer}.drawer-submenu{display:none;padding:4px 0 8px 14px}.drawer-submenu.open{display:block}.drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}.drawer-toggle:after{content:"＋";float:right;color:var(--primary)}.drawer-toggle.active:after{content:"−"}
    .tool-detail-page{padding:70px 0 100px}.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:22px}.breadcrumbs a{color:var(--primary)}.tool-hero{display:grid;grid-template-columns:180px 1fr;gap:32px;align-items:center;background:linear-gradient(135deg,#eef6ff,#fff);border:1px solid #dbeafe;border-radius:26px;padding:42px;box-shadow:var(--shadow)}.tool-icon{width:132px;height:132px;border-radius:28px;background:#fff;border:1px solid #bae6fd;padding:22px;object-fit:contain}.eyebrow{color:var(--primary);font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.tool-hero h1{font-size:clamp(30px,5vw,54px);line-height:1.15;margin:8px 0 14px;color:var(--indigo)}.tool-hero p{color:var(--muted);max-width:720px;margin:0}.tool-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.primary-btn,.ghost-btn{display:inline-flex;align-items:center;justify-content:center;border-radius:11px;padding:12px 20px;font-weight:800;font-size:14px}.primary-btn{background:var(--primary);color:#fff}.ghost-btn{border:1px solid #bfdbfe;color:var(--primary);background:#fff}.tool-content-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;margin-top:32px}.content-card,.related-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:0 8px 25px rgba(15,23,42,.04)}.content-card h2,.related-card h2{margin:0 0 20px;color:var(--indigo);font-size:22px}.tool-body{min-width:0;max-width:100%;overflow-x:auto;color:#334155}.tool-body img,.tool-body table{max-width:100%}.tool-body h3{color:var(--primary);margin-top:28px}.tool-body a{color:var(--primary);text-decoration:underline}.tool-meta{display:flex;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-top:16px}.related-list{display:grid;gap:12px}.related-card-item{display:flex;gap:12px;align-items:center;padding:12px;border:1px solid var(--line);border-radius:12px}.related-card-item img{width:44px;height:44px;object-fit:contain}.related-card-item strong{font-size:13px}.related-card-item small{display:block;color:var(--muted);font-size:11px}
    .footer{background:#0f172a;color:#cbd5e1;padding:55px 0 20px}.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:38px}.footer .logo{color:#fff}.footer-brand p{font-size:13px;color:#94a3b8;max-width:290px}.footer h2{font-size:14px;color:#fff;margin:4px 0 14px}.footer-links{display:grid;gap:8px;font-size:13px}.footer-links a:hover,.footer-contact a:hover{color:var(--cyan)}.footer-social{margin-top:18px}.footer-contact address{display:grid;gap:8px;font-style:normal;font-size:13px}.footer-contact span{color:#94a3b8}.footer-bottom{border-top:1px solid #334155;margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:#94a3b8}.footer-bottom-links{display:flex;gap:16px}
    @media(max-width:1050px){.main-nav{display:none}.header-btns{margin-left:auto}.hamburger{display:block}.footer-main{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:700px){.container{width:min(100% - 28px,1180px)}.topbar-inner{height:auto;min-height:38px;gap:8px;flex-wrap:wrap;padding:7px 0}.topbar-contact{gap:10px}.member-entry{display:none}.open-account{padding:9px 11px}.tool-detail-page{padding:38px 0 65px}.tool-hero{grid-template-columns:1fr;padding:26px;text-align:center}.tool-icon{margin:auto}.tool-actions{justify-content:center}.tool-content-grid{grid-template-columns:1fr}.content-card,.related-card{padding:22px}.footer-main{grid-template-columns:1fr;gap:25px}.footer-bottom{display:grid}.mega-menu,.dropdown-panel{display:none}}