:root{--surface:#ffffff;--surface-muted:#f6f7fb;--border:#e6e8f0;--text-main:#0f172a;--text-muted:#526074;--primary:#0ea5e9;--primary-dark:#0284c7;--accent:#f97316;--shadow-soft:0 10px 30px rgba(15,23,42,0.06);--gradient:linear-gradient(135deg,#0ea5e9 0%,#38bdf8 100%);--ogm-bg:#ffffff;--ogm-border:#e6e8f0;--ogm-text:#0f172a;--ogm-muted:#5b6b82;--ogm-warn-bg:rgba(245,158,11,0.12);--ogm-warn-border:rgba(245,158,11,0.28);--ogm-code-bg:#0b1220;--ogm-radius:14px;--ogm-radius-sm:10px;}
.ogm-mistakes{margin:1.5rem 0 2rem;padding:1rem 1.25rem;border-radius:var(--ogm-radius);border:1px solid var(--ogm-warn-border);background:var(--ogm-warn-bg);}
.ogm-mistakes h2{font-size:1.125rem;font-weight:700;margin:0 0 0.75rem;color:var(--text-main);}
.ogm-mistakes ul{margin:0;padding-left:1.25rem;color:var(--text-muted);font-size:0.9375rem;line-height:1.55;}
.ogm-mistakes li{margin-bottom:0.5rem;}
.ogm-workbench{margin:0 0 2.5rem;}
.ogm-workbench-grid{display:flex;flex-direction:column-reverse;gap:1.25rem;align-items:stretch;}
@media (min-width:992px){.ogm-workbench-grid{flex-direction:row;align-items:flex-start;}.ogm-col-fields{flex:1;min-width:0;}.ogm-col-preview{width:100%;max-width:420px;flex-shrink:0;}}
.ogm-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--ogm-radius);padding:1rem 1.1rem;box-shadow:var(--shadow-soft);}
.ogm-panel-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:0.75rem;margin-bottom:1rem;}
.ogm-panel-title{font-size:0.8125rem;font-weight:700;letter-spacing:0.06em;text-transform:uppercase;color:var(--text-muted);margin:0;}
.ogm-platforms{display:flex;flex-wrap:wrap;gap:0.35rem;}
.ogm-platform-btn{appearance:none;border:1px solid var(--border);background:var(--surface-muted);color:var(--text-main);font-size:0.8125rem;font-weight:600;padding:0.45rem 0.85rem;border-radius:999px;cursor:pointer;transition:background 0.15s ease,border-color 0.15s ease,color 0.15s ease;}
.ogm-platform-btn:hover{border-color:var(--primary);color:var(--primary);}
.ogm-platform-btn.ogm-active{background:var(--primary);border-color:var(--primary);color:#fff;}
.ogm-preview-card{border-radius:var(--ogm-radius-sm);overflow:hidden;border:1px solid var(--ogm-border);background:var(--ogm-bg);color:var(--ogm-text);transition:box-shadow 0.2s ease;}
.ogm-preview-card.ogm-theme-fb{box-shadow:0 14px 44px rgba(24,119,242,0.12);}
.ogm-preview-card.ogm-theme-tw{box-shadow:0 14px 44px rgba(15,23,42,0.14);}
.ogm-preview-card.ogm-theme-li{box-shadow:0 14px 44px rgba(10,102,194,0.1);}
.ogm-preview-media{aspect-ratio:1200/630;background:linear-gradient(135deg,#e8eef7 0%,#f7f9ff 100%);position:relative;display:flex;align-items:center;justify-content:center;min-height:140px;}
.ogm-preview-media img{width:100%;height:100%;object-fit:cover;display:block;}
.ogm-preview-ph{font-size:0.75rem;color:var(--ogm-muted);text-align:center;padding:1rem;line-height:1.4;}
.ogm-preview-body{padding:0.85rem 1rem 1rem;}
.ogm-preview-domain{font-size:0.6875rem;text-transform:uppercase;letter-spacing:0.04em;color:var(--ogm-muted);margin-bottom:0.35rem;}
.ogm-preview-title{font-weight:700;font-size:1rem;line-height:1.3;margin:0 0 0.35rem;color:var(--ogm-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.ogm-preview-desc{font-size:0.8125rem;line-height:1.45;color:var(--ogm-muted);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.ogm-field-grid{display:grid;gap:1rem;}
.ogm-field label{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:0.5rem;font-size:0.8125rem;font-weight:600;color:var(--text-main);margin-bottom:0.35rem;}
.ogm-char{font-weight:500;color:var(--text-muted);font-variant-numeric:tabular-nums;font-size:0.75rem;}
.ogm-input,.ogm-textarea,.ogm-select{width:100%;box-sizing:border-box;border:1px solid var(--border);border-radius:var(--ogm-radius-sm);padding:0.65rem 0.85rem;font-size:1rem;background:var(--surface);color:var(--text-main);transition:border-color 0.15s ease,box-shadow 0.15s ease;}
.ogm-input:focus,.ogm-textarea:focus,.ogm-select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,165,233,0.2);}
.ogm-textarea{min-height:88px;resize:vertical;line-height:1.45;}
.ogm-hint{font-size:0.75rem;color:var(--text-muted);margin-top:0.35rem;line-height:1.4;}
.ogm-details{margin-top:1rem;border-top:1px solid var(--border);padding-top:1rem;}
.ogm-details summary{cursor:pointer;font-weight:600;font-size:0.875rem;color:var(--text-main);list-style:none;}
.ogm-details summary::-webkit-details-marker{display:none;}
.ogm-adv-grid{display:grid;gap:1rem;margin-top:1rem;}
@media (min-width:576px){.ogm-adv-grid{grid-template-columns:1fr 1fr;}}
.ogm-code-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:0.75rem;margin-bottom:0.65rem;}
.ogm-code-head h3{margin:0;font-size:1rem;font-weight:700;color:var(--text-main);}
.ogm-copy-btn{appearance:none;border:none;background:var(--primary);color:#fff;font-weight:600;font-size:0.875rem;padding:0.55rem 1.1rem;border-radius:var(--ogm-radius-sm);cursor:pointer;transition:background 0.15s ease,transform 0.1s ease;}
.ogm-copy-btn:hover{background:var(--primary-dark);}
.ogm-copy-btn:active{transform:scale(0.98);}
.ogm-copy-btn.ogm-done{background:#22c55e;}
.ogm-pre{margin:0;padding:1rem;border-radius:var(--ogm-radius-sm);background:var(--ogm-code-bg);color:#e2e8f0;font-size:0.75rem;line-height:1.5;overflow-x:auto;white-space:pre-wrap;word-break:break-word;border:1px solid rgba(255,255,255,0.08);max-height:min(50vh,420px);overflow-y:auto;}
.ogm-trust{font-size:0.75rem;color:var(--text-muted);margin-top:0.75rem;line-height:1.45;}
.ogm-article{margin:2.5rem 0 2rem;padding-top:2rem;border-top:1px solid var(--border);}
.ogm-article h2{font-size:1.35rem;font-weight:700;margin:2rem 0 0.75rem;color:var(--text-main);}
.ogm-article h2:first-child{margin-top:0;}
.ogm-article h3{font-size:1.05rem;font-weight:600;margin:1.25rem 0 0.5rem;color:var(--text-main);}
.ogm-article p,.ogm-article td,.ogm-article li{font-size:0.9375rem;line-height:1.65;color:var(--text-muted);}
.ogm-article p{margin:0 0 1rem;}
.ogm-aside{margin:1.5rem 0;padding:1rem 1.15rem;border-left:4px solid var(--primary);background:var(--surface-muted);border-radius:0 var(--ogm-radius-sm) var(--ogm-radius-sm) 0;}
.ogm-aside p{margin:0;font-size:0.875rem;color:var(--text-main);}
.ogm-table-wrap{overflow-x:auto;margin:1rem 0;border-radius:var(--ogm-radius-sm);border:1px solid var(--border);}
.ogm-table{width:100%;border-collapse:collapse;font-size:0.875rem;}
.ogm-table th,.ogm-table td{padding:0.65rem 0.85rem;text-align:left;border-bottom:1px solid var(--border);}
.ogm-table th{background:var(--surface-muted);color:var(--text-main);font-weight:600;}
.ogm-table tr:last-child td{border-bottom:none;}
.ogm-table td{color:var(--text-muted);}