/* SEO公共导航栏样式 */
.seo-header { background: linear-gradient(135deg, #1a1a2e, #16213e 50%, #0f3460); color: white; padding: 0 24px; height: 52px; display: flex; align-items: center; justify-content: space-between; box-shadow: 0 2px 8px rgba(0,0,0,.15); position: relative; z-index: 50; }
.seo-header h1 { font-size: 17px; font-weight: 500; }
.seo-header h1 a { color: white; text-decoration: none; }
.seo-header .header-nav-right { display: flex; align-items: center; gap: 0; }
.seo-header .header-nav { display: flex; align-items: center; gap: 0; }
.seo-header .header-nav a { color: rgba(255,255,255,.75); text-decoration: none; font-size: 13px; padding: 6px 14px; border-radius: 4px; transition: all 0.2s; }
.seo-header .header-nav a:hover { color: white; background: rgba(255,255,255,.1); }
.seo-header .header-divider { width: 1px; height: 16px; background: rgba(255,255,255,.2); margin: 0 6px; flex-shrink: 0; }
.seo-header .header-user { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,.8); }
.seo-header .header-user a { color: #5cf; text-decoration: none; transition: color 0.2s; }
.seo-header .header-user a:hover { color: #8ef; }
.seo-header .user-icon { width: 28px; height: 28px; border-radius: 50%; background: rgba(255,255,255,.15); display: inline-flex; align-items: center; justify-content: center; font-size: 14px; color: white; }