:root{--primary-color:#4f46e5;--primary-gradient:linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);--bg-color:#f8fafc;--card-bg:#fff;--text-main:#1e293b;--text-muted:#64748b;--border-color:#e2e8f0;--shadow:0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05)}body{background-color:var(--bg-color);color:var(--text-main);flex-direction:column;min-height:100vh;margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;display:flex}#app1{flex-direction:column;flex:1;display:flex}.site-header,.site-footer{background:var(--card-bg);border-bottom:1px solid var(--border-color);justify-content:center;align-items:center;padding:1rem 2rem;display:flex}.header-content{justify-content:space-between;align-items:center;width:100%;max-width:1000px;display:flex}.lang-switcher{flex-wrap:wrap;gap:1rem;font-size:.75rem;display:flex}.lang-switcher.scrollable{white-space:nowrap;-ms-overflow-style:none;scrollbar-width:none;flex-wrap:nowrap;margin-left:1rem;padding-bottom:2px;overflow-x:auto}.lang-switcher.scrollable::-webkit-scrollbar{display:none}.lang-link{color:var(--text-muted);white-space:nowrap;text-decoration:none;transition:color .2s}.lang-link:hover,.lang-link.active{color:var(--primary-color);font-weight:500}.site-footer{border-top:1px solid var(--border-color);border-bottom:none;flex-direction:column;gap:1rem;margin-top:2rem}.it365-link{color:var(--primary-color);white-space:nowrap;flex-shrink:0;font-weight:600;text-decoration:none;transition:opacity .2s}.it365-link:hover{opacity:.8;text-decoration:underline}.container{box-sizing:border-box;width:100%;max-width:1000px;margin:2rem auto;padding:0 1rem}.tool-title{text-align:center;background:var(--primary-gradient);-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:2rem;font-family:Outfit,sans-serif;font-size:2.5rem;font-weight:700}.main-card{background:var(--card-bg);box-shadow:var(--shadow);border-radius:1.5rem;margin-bottom:2rem;padding:2rem;transition:transform .3s}.editor-wrapper{border:2px solid var(--border-color);background:#fff;border-radius:1rem;height:300px;margin-bottom:2rem;transition:border-color .3s;position:relative;overflow:hidden}.editor-wrapper:focus-within{border-color:var(--primary-color)}#editor-iframe{border:none;width:100%;height:100%}.result-section{flex-direction:column;gap:1.5rem;display:flex}.result-block{border:1px solid var(--border-color);background:#fdfdfd;border-radius:1rem;padding:1.5rem}.result-header{justify-content:space-between;align-items:center;margin-bottom:1rem;display:flex}.result-title{color:var(--text-main);align-items:center;gap:.5rem;font-size:1.1rem;font-weight:700;display:flex}.copy-btn{padding:4px 12px}pre{white-space:pre-wrap;word-break:break-all;background:#f1f5f9;border-radius:.5rem;margin:0;padding:1rem;font-family:Consolas,Monaco,monospace;font-size:.9rem;overflow-x:auto}.article-content{border-top:1px solid var(--border-color);margin-top:4rem;padding-top:3rem}.article-content h2{color:var(--text-main);margin-top:2rem;font-family:Outfit,sans-serif}.article-content p,.article-content li{color:var(--text-muted);line-height:1.8}.step-list{padding-left:0;list-style:none}.step-item{gap:1rem;margin-bottom:1rem;display:flex}.step-number{background:var(--primary-gradient);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:.8rem;font-weight:700;display:flex}.example-table{border:1px solid var(--border-color);background:#fff;border-radius:.5rem;margin:1rem 0;padding:1rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animated{animation:.5s forwards fadeIn}@media (max-width:640px){.tool-title{font-size:1.8rem}.main-card{padding:1rem}.site-header{padding:.8rem 1rem}.lang-switcher{gap:.8rem}}