.container{max-width:1100px;margin:0 auto;padding:40px 40px 60px}.back-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;color:var(--text-dim);font-family:IBM Plex Sans,sans-serif;font-size:11px;font-weight:500;letter-spacing:.5px;text-transform:uppercase;text-decoration:none;cursor:pointer;transition:all .15s;margin-bottom:32px}.back-btn:hover{border-color:var(--border-light);color:var(--text);background:var(--surface-3);transform:translateY(-1px);box-shadow:0 4px 12px var(--shadow-card)}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;box-shadow:0 2px 12px var(--shadow-card);overflow:hidden}.card-header{padding:28px 32px 24px;border-bottom:1px solid var(--border)}.card-label{font-family:IBM Plex Sans,sans-serif;font-size:10px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);margin-bottom:8px}.card-title{font-family:Playfair Display,serif;font-size:28px;font-weight:400;color:var(--text);line-height:1.3;letter-spacing:-.02em}.card-intro{font-family:IBM Plex Sans,sans-serif;font-size:14px;color:var(--text-muted);font-weight:300;line-height:1.7;margin-top:10px}.card-body{padding:28px 32px 36px}.card-body h2{font-family:IBM Plex Sans,sans-serif;font-size:16px;font-weight:600;color:var(--text);margin-top:28px;margin-bottom:10px;letter-spacing:.2px}.card-body h2:first-child{margin-top:0}.card-body p{font-size:14.5px;line-height:1.8;color:var(--text-dim);margin-bottom:14px}.card-body a{color:var(--accent);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .15s}.card-body a:hover{border-bottom-color:var(--accent)}.card-body ul{list-style:none;margin-bottom:14px;padding-left:0}.card-body ul li{font-size:14.5px;line-height:1.8;color:var(--text-dim);padding-left:18px;position:relative}.card-body ul li:before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.5}.card-body strong{color:var(--text);font-weight:500}.card-body kbd{display:inline-block;padding:1px 6px;border:1px solid rgba(191,176,96,.25);border-radius:4px;background:#bfb0600f;color:var(--accent);font-family:IBM Plex Sans,sans-serif;font-size:12px;font-weight:600;line-height:1.4}.divider{height:1px;background:var(--border);margin:28px 0}.technique{padding:20px;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;margin-bottom:14px}.technique-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.technique-header h3{font-family:IBM Plex Sans,sans-serif;font-size:14.5px;font-weight:600;color:var(--text);letter-spacing:.1px}.technique p{font-size:13.5px;line-height:1.75;color:var(--text-dim);margin-bottom:10px}.technique p:last-child{margin-bottom:0}.technique-note{font-size:12.5px!important;color:var(--text-muted)!important;font-style:italic;margin-bottom:0!important}.operator{display:inline-block;padding:2px 8px;border:1px solid rgba(191,176,96,.25);border-radius:4px;background:#bfb0600f;color:var(--accent);font-family:IBM Plex Sans,sans-serif;font-size:11px;font-weight:600;line-height:1.4}.example-row{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}.example-row:last-child{margin-bottom:0}.example-label{font-family:IBM Plex Sans,sans-serif;font-size:9.5px;font-weight:500;letter-spacing:.5px;text-transform:uppercase;color:var(--text-muted);opacity:.6;flex-shrink:0}.example-query{font-family:IBM Plex Sans,sans-serif;font-size:12px;color:var(--accent);background:#bfb0600f;border:1px solid rgba(191,176,96,.15);border-radius:5px;padding:5px 12px;text-decoration:none;transition:background .2s,border-color .2s}.example-query:hover{background:#bfb0601f;border-color:#bfb0604d}.example-sep{font-family:IBM Plex Sans,sans-serif;font-size:11px;color:var(--text-muted);opacity:.4}.feature-list{display:flex;flex-direction:column;gap:4px}.feature-item{display:flex;gap:16px;padding:16px;border-radius:10px;transition:background .15s}.feature-item:hover{background:var(--surface-2)}.feature-icon{width:36px;height:36px;border-radius:10px;background:var(--surface-2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--accent)}.feature-item:hover .feature-icon{border-color:var(--border-light)}.feature-item h3{font-family:IBM Plex Sans,sans-serif;font-size:14px;font-weight:600;color:var(--text);margin-bottom:4px;letter-spacing:.1px}.feature-item p{font-size:13.5px;line-height:1.65;color:var(--text-muted);margin-bottom:0}.faq{margin-bottom:20px}.faq:last-child{margin-bottom:0}.faq h3{font-family:IBM Plex Sans,sans-serif;font-size:14.5px;font-weight:600;color:var(--text);margin-bottom:6px;letter-spacing:.1px}.faq p{font-size:14px;line-height:1.75;color:var(--text-dim);margin-bottom:8px}.faq p:last-child,.faq ul:last-child{margin-bottom:0}@media (max-width: 640px){.container{padding:24px 16px 48px}.card-header{padding:22px 20px 18px}.card-body{padding:22px 20px 28px}.card-title{font-size:22px}.technique{padding:16px}.feature-item{padding:12px;gap:12px}.feature-icon{width:32px;height:32px}.feature-icon svg{width:14px;height:14px}}