.site-header{position:fixed;top:0;left:0;right:0;z-index:9999;background:#fff;border-bottom:1px solid #e5e7eb;transition:all .3s ease}.site-header.scrolled{box-shadow:0 2px 8px rgba(0,0,0,.08)}body[data-theme=dark] .site-header{background:#1e293b;border-bottom-color:#334155}.site-header.header-sticky{position:fixed;top:0;left:0;right:0;z-index:9999}.site-header.header-sticky+*{margin-top:80px}.header-wrapper{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:32px;padding:16px 0;min-height:80px}.header-left{flex-shrink:0}.site-logo{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:#1e293b;font-size:24px;font-weight:700;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;transition:opacity .2s}.site-logo:hover{opacity:.8}.logo-first-letter{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;background:linear-gradient(135deg,#3b82f6 0%,#2563eb 100%);color:#fff;border-radius:8px;font-size:20px;font-weight:700;box-shadow:0 2px 8px rgba(59,130,246,.3);position:relative;animation:logo-pulse 2s ease-in-out infinite}@keyframes logo-pulse{0%,100%{transform:scale(1);box-shadow:0 2px 8px rgba(59,130,246,.3)}50%{transform:scale(1.05);box-shadow:0 4px 12px rgba(59,130,246,.5)}}.logo-first-letter:before{content:'';position:absolute;inset:-2px;border-radius:8px;background:linear-gradient(135deg,#3b82f6,#2563eb);opacity:0;z-index:-1;transition:opacity .3s}.logo-first-letter:hover:before{opacity:.3;animation:logo-glow 1.5s ease-in-out infinite}@keyframes logo-glow{0%,100%{opacity:.3;transform:scale(1)}50%{opacity:.6;transform:scale(1.1)}}.logo-text{color:#1e293b}body[data-theme=dark] .site-logo,body[data-theme=dark] .logo-text{color:#f1f5f9}body[data-theme=dark] .logo-first-letter{background:linear-gradient(135deg,#60a5fa 0%,#3b82f6 100%)}.header-nav{display:flex;justify-content:center;flex:1}.main-menu{display:flex;align-items:center;gap:32px;list-style:none;margin:0;padding:0}.main-menu li{margin:0}.main-menu a{font-size:15px;font-weight:500;color:#475569;text-decoration:none;transition:color .2s;padding:8px 0;position:relative}.main-menu a:hover{color:#3b82f6}.main-menu .current-menu-item>a,.main-menu .current_page_item>a{color:#3b82f6;font-weight:600}.main-menu .current-menu-item>a:after,.main-menu .current_page_item>a:after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:#3b82f6;border-radius:1px}body[data-theme=dark] .main-menu a{color:#cbd5e1}body[data-theme=dark] .main-menu a:hover,body[data-theme=dark] .main-menu .current-menu-item>a{color:#60a5fa}.header-right{display:flex;align-items:center;gap:12px;flex-shrink:0}.language-switcher{position:relative}.language-btn{display:flex;align-items:center;gap:6px;padding:8px 12px;background:#f1f5f9;border:1px solid #e2e8f0;border-radius:8px;cursor:pointer;transition:all .2s;font-size:14px;color:#475569;font-weight:500}.language-btn:hover{background:#e2e8f0;border-color:#cbd5e1}.language-flag{font-size:18px;line-height:1}.language-code{font-weight:500}.language-dropdown{position:absolute;top:calc(100% + 8px);right:0;background:#fff;border:1px solid #e2e8f0;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,.1);list-style:none;padding:8px;margin:0;min-width:140px;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all .2s;z-index:1000}.language-switcher:focus-within .language-dropdown,.language-dropdown.show{opacity:1;visibility:visible;transform:translateY(0)}.language-dropdown li{margin:0}.language-dropdown a{display:flex;align-items:center;gap:10px;padding:8px 12px;text-decoration:none;color:#475569;border-radius:6px;transition:all .2s;font-size:14px}.language-dropdown a:hover{background:#f1f5f9;color:#3b82f6}body[data-theme=dark] .language-btn{background:#334155;border-color:#475569;color:#cbd5e1}body[data-theme=dark] .language-dropdown{background:#1e293b;border-color:#334155}body[data-theme=dark] .language-dropdown a{color:#cbd5e1}body[data-theme=dark] .language-dropdown a:hover{background:#334155;color:#60a5fa}.theme-toggle{width:40px;height:40px;border-radius:8px;background:#f1f5f9;border:1px solid #e2e8f0;color:#475569;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:18px;transition:all .2s;padding:0;line-height:1}.theme-toggle:hover{background:#e2e8f0;border-color:#cbd5e1}.theme-icon{display:inline-block;transition:transform .3s}.theme-icon-light{display:inline-block}.theme-icon-dark{display:none}body[data-theme=dark] .theme-icon-light{display:none}body[data-theme=dark] .theme-icon-dark{display:inline-block}body[data-theme=dark] .theme-toggle{background:#334155;border-color:#475569;color:#cbd5e1}.btn-login{padding:10px 20px;background:#2563eb !important;color:#fff !important;border:none;border-radius:8px;text-decoration:none;font-size:14px;font-weight:600;transition:all .2s;white-space:nowrap}.btn-login:hover{background:#1e40af !important;transform:translateY(-1px) translateZ(0);box-shadow:0 4px 12px rgba(30,64,175,.4);color:#fff !important}.btn-login:active{background:#1e3a8a !important;color:#fff !important}body[data-theme=dark] .btn-login{background:#3b82f6 !important;color:#fff !important}body[data-theme=dark] .btn-login:hover{background:#2563eb !important;color:#fff !important}.user-menu{position:relative}.user-btn{display:flex;align-items:center;gap:8px;padding:8px 12px;background:#f1f5f9;border:1px solid #e2e8f0;border-radius:8px;cursor:pointer;transition:all .2s;font-size:14px;color:#475569;font-weight:500}.user-btn:hover{background:#e2e8f0;border-color:#cbd5e1}.user-avatar{width:28px;height:28px;border-radius:50%;background:#3b82f6;color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0}.user-name{max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.user-dropdown{position:absolute;top:calc(100% + 8px);right:0;background:#fff;border:1px solid #e2e8f0;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,.1);list-style:none;padding:8px;margin:0;min-width:160px;opacity:0;visibility:hidden;transform:translateY(-10px);transition:all .2s;z-index:1000}.user-dropdown.show{opacity:1;visibility:visible;transform:translateY(0)}.user-dropdown li{margin:0}.user-dropdown a{display:block;padding:10px 12px;text-decoration:none;color:#475569;border-radius:6px;transition:all .2s;font-size:14px}.user-dropdown a:hover{background:#f1f5f9;color:#3b82f6}body[data-theme=dark] .user-btn{background:#334155;border-color:#475569;color:#cbd5e1}body[data-theme=dark] .user-dropdown{background:#1e293b;border-color:#334155}body[data-theme=dark] .user-dropdown a{color:#cbd5e1}body[data-theme=dark] .user-dropdown a:hover{background:#334155;color:#60a5fa}.site-footer{background:#fff;border-top:1px solid #e2e8f0;padding:60px 0 30px;margin-top:80px}body[data-theme=dark] .site-footer{background:#1e293b;border-top-color:#334155}.footer-content{display:grid;grid-template-columns:1fr 2fr;gap:60px;margin-bottom:40px}.footer-left{max-width:320px}.footer-logo{margin-bottom:16px}.footer-description{font-size:14px;color:#475569 !important;line-height:1.6;margin:0;font-weight:400}body[data-theme=dark] .footer-description{color:#cbd5e1 !important}@media (max-width:768px){.footer-description{color:#334155 !important;font-weight:500 !important;font-size:13px !important}body[data-theme=dark] .footer-description{color:#e2e8f0 !important}}.footer-menus{display:grid;grid-template-columns:repeat(4,1fr);gap:40px}.footer-menu-column{display:flex;flex-direction:column}.footer-menu-title{font-size:13px;font-weight:700;color:#1e293b;margin:0 0 16px;text-transform:uppercase;letter-spacing:.5px;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}body[data-theme=dark] .footer-menu-title{color:#f1f5f9}.footer-menu-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}.footer-menu-list li{margin:0}.footer-menu-list a{font-size:14px;color:#64748b;text-decoration:none;transition:color .2s;display:block}.footer-menu-list a:hover{color:#3b82f6}body[data-theme=dark] .footer-menu-list a{color:#94a3b8}body[data-theme=dark] .footer-menu-list a:hover{color:#60a5fa}.footer-bottom{padding-top:30px;border-top:1px solid #e2e8f0}body[data-theme=dark] .footer-bottom{border-top-color:#334155}.footer-copyright{font-size:13px;color:#475569 !important;text-transform:uppercase;letter-spacing:.5px;font-weight:500}body[data-theme=dark] .footer-copyright{color:#cbd5e1 !important}@media (max-width:768px){.footer-copyright{color:#334155 !important;font-weight:600 !important;font-size:12px !important}body[data-theme=dark] .footer-copyright{color:#e2e8f0 !important}}body[data-theme=dark]{background:#0f172a;color:#f1f5f9}body[data-theme=dark] h1,body[data-theme=dark] h2,body[data-theme=dark] h3,body[data-theme=dark] h4,body[data-theme=dark] h5,body[data-theme=dark] h6{color:#f1f5f9}body[data-theme=dark] p,body[data-theme=dark] body,body[data-theme=dark] div,body[data-theme=dark] span{color:#cbd5e1}@media (max-width:1024px){.header-wrapper{grid-template-columns:auto 1fr;gap:16px}.header-nav{display:none}.footer-content{grid-template-columns:1fr;gap:40px}.footer-menus{grid-template-columns:repeat(2,1fr);gap:30px}}@media (max-width:768px){.header-wrapper{padding:12px 0;min-height:60px;gap:12px}.site-logo{font-size:20px}.logo-first-letter{width:32px;height:32px;font-size:18px}.header-right{gap:8px}.language-code,.user-name{display:none}.language-btn,.theme-toggle{width:36px;height:36px;padding:0}.btn-login{padding:8px 16px;font-size:13px}.footer-menus{grid-template-columns:1fr;gap:32px}.footer-bottom{flex-direction:column;gap:20px;align-items:flex-start}.site-header+*{margin-top:60px}}