:root{--bg-primary: #FAFBFC;--bg-secondary: #FFFFFF;--bg-tertiary: #F1F3F5;--border-color: #E1E4E8;--border-light: #EBEDEF;--accent: #1E88E5;--accent-hover: #1565C0;--accent-light: #E3F2FD;--accent-subtle: #F0FBF5;--text-primary: #24292E;--text-secondary: #586069;--text-muted: #8B949E;--danger: #D73A49;--danger-hover: #CB2431;--danger-bg: #FFEEF0;--success: #28A745;--success-bg: #DCFFE4;--warning: #F9A825;--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 12px rgba(0,0,0,.1);--shadow-lg: 0 8px 24px rgba(0,0,0,.12);--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--sidebar-width: 280px;--header-height: 38px;--transition: .2s ease;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, 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img{width:100%;height:140px;object-fit:cover;display:block}.props-thumb-actions{display:flex;gap:6px;padding:6px;background:var(--bg-tertiary)}.props-upload-btn{width:100%;justify-content:center}.props-divider{height:1px;background:var(--border-light);margin:4px 0}.props-section-title{font-size:12px;font-weight:600;color:var(--accent);margin:0}.btn-icon{background:none;border:none;cursor:pointer;color:var(--text-muted);font-size:14px;padding:2px 4px;border-radius:var(--radius-sm)}.btn-icon:hover{background:var(--bg-tertiary);color:var(--text-primary)}.btn-danger-outline{color:var(--danger)!important;border-color:var(--danger)!important}.btn-danger-outline:hover{background:var(--danger-bg)!important}@media(max-width:768px){.editor-props-sidebar{position:fixed;right:0;top:var(--header-height);bottom:0;z-index:100;box-shadow:var(--shadow-lg)}}.article-page{flex:1;flex-direction:column!important;overflow-y:auto;padding:0}.article-breadcrumb{padding:10px 24px;border-bottom:1px solid 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12px}.qr-input-section{background:#fff;border-radius:16px;padding:20px;box-shadow:0 4px 20px #0000000f}.qr-textarea{width:100%;padding:14px;border:2px solid #e0e5ec;border-radius:12px;font-size:15px;resize:vertical;outline:none;font-family:inherit;transition:border-color .2s;box-sizing:border-box}.qr-textarea:focus{border-color:var(--accent)}.qr-options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.qr-option{display:flex;flex-direction:column;gap:4px}.qr-option label{font-size:11px;color:#888;text-transform:uppercase;letter-spacing:1px;font-weight:600}.qr-option select,.qr-option input[type=color]{padding:8px;border:1px solid #e0e5ec;border-radius:8px;font-size:13px;outline:none;cursor:pointer}.qr-option 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