html{font-size:16px}@media(max-width:1200px){html{font-size:14px}}@media(max-width:900px){html{font-size:12px}}@media(max-width:600px){html{font-size:10px}}.nav-header{display:flex;align-items:center;height:4.375rem;padding:0 2.5rem;font-family:'Microsoft YaHei',Arial,sans-serif;position:fixed;top:0;left:0;width:100%;z-index:1111;background:rgba(34,34,34,0.82);border-bottom:0;box-shadow:0 2px 12px rgba(0,0,0,0.10);box-sizing:border-box}body{padding-top:4.375rem}.nav-logo{flex:0 0 auto;margin-right:1.2rem;height:3.75rem;display:flex;align-items:center}.nav-logo img{height:3rem;width:auto;filter:drop-shadow(0 1px 4px rgba(0,0,0,0.18))}.nav-menu{display:flex;flex:1;list-style:none;margin:0;padding:0}.nav-menu-item{position:relative;margin:0 .4rem;display:flex;align-items:center;height:4.375rem}.nav-menu-item>a{display:flex;align-items:center;color:#fff;font-size:.875rem;font-weight:normal;padding:0 .75rem;height:100%;text-decoration:none;transition:color .2s,font-weight .2s,background .2s;position:relative;overflow:hidden;text-shadow:0 1px 4px rgba(0,0,0,0.18)}.nav-menu-item>a::after{content:'';display:block;position:absolute;left:50%;bottom:.5rem;width:0;height:3px;background:#fff;border-radius:2px;transition:width .35s cubic-bezier(.4,0,.2,1),left .35s cubic-bezier(.4,0,.2,1)}.nav-menu-item:hover>a,.nav-menu-item-active>a{color:#ffd700;background:0;border-bottom:0;text-shadow:0 2px 8px rgba(0,0,0,0.22)}.nav-menu-item:hover>a::after,.nav-menu-item-active>a::after{width:60%;left:20%}.nav-icon{display:inline-flex;align-items:center;margin-right:.5rem;width:1.25rem;height:1.25rem}.nav-icon img{width:1.25rem;height:1.25rem;object-fit:contain}.nav-menu-item .nav-icon img[alt="集团站群"]{width:1.25rem;height:1.25rem;object-fit:contain}.nav-menu-jituan:hover .nav-submenu,.nav-menu-jituan:focus-within .nav-submenu{opacity:1;pointer-events:auto;transform:translateY(0)}.nav-menu-item-haschild:hover .nav-submenu,.nav-menu-item-haschild:focus-within .nav-submenu{opacity:1;pointer-events:auto;transform:translateY(0)}.nav-submenu{display:block;opacity:0;pointer-events:none;position:absolute;left:0;top:70px;min-width:11.25rem;background:rgba(255,255,255,0.3);box-shadow:0 4px 16px rgba(0,0,0,0.12);border-radius:0 0 8px 8px;z-index:100;padding:.5rem 0;transform:translateY(20px);transition:opacity .3s cubic-bezier(.4,0,.2,1),transform .3s cubic-bezier(.4,0,.2,1)}.nav-submenu-item{display:flex;align-items:center}.nav-submenu-item>a{display:flex;align-items:center;color:#222;font-size:.875rem;font-weight:normal;padding:.625rem 1.75rem .625rem 1.25rem;text-decoration:none;transition:background .2s,color .2s,font-weight .2s;width:100%}.nav-submenu-item>a:hover,.nav-submenu-item-active>a{background:#f5f5f5;color:#222;font-weight:bold;border-radius:4px}.nav-right-icons{display:flex;align-items:center;margin-left:auto;gap:1.125rem}.nav-right-icon{width:1.5rem;height:1.5rem;display:flex;align-items:center;justify-content:center;cursor:pointer;color:#fff;transition:color .2s;text-shadow:0 1px 4px rgba(0,0,0,0.18)}.nav-right-icon:hover{color:#ffd700}.nav-menu-jituan .nav-submenu{right:0;left:auto;min-width:20rem}.nav-menu-jituan .nav-submenu-item>a{padding:.55rem 1.5rem .55rem 1.1rem;font-size:.85rem;color:#222;transition:background .2s,color .2s,font-weight .2s;font-weight:400}.nav-menu-jituan .nav-submenu-item>a:hover,.nav-menu-jituan .nav-submenu-item-active>a{background:#f0f6ff;color:#005bac;font-weight:bold;border-radius:6px}.nav-menu-jituan .nav-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:18rem}.mobile-menu-toggle{display:none;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;cursor:pointer;margin-left:auto;margin-right:1rem;z-index:1112}.mobile-menu-toggle img{width:1.5rem;height:1.5rem;filter:brightness(0) invert(1);transition:transform .3s ease}.mobile-menu-toggle:hover img{transform:scale(1.1)}.mobile-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);z-index:1110;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}.mobile-overlay-active{opacity:1;visibility:visible}.mobile-drawer{position:fixed;top:0;left:-100%;width:80%;max-width:20rem;height:100%;background:#fff;z-index:1111;transition:left .3s ease;box-shadow:2px 0 10px rgba(0,0,0,0.1);overflow-y:auto}.mobile-drawer-open{left:0}.mobile-drawer-header{display:flex;align-items:center;justify-content:space-between;padding:1rem;background:#1a237e;border-bottom:1px solid #e0e0e0}.mobile-logo{height:2rem;width:auto;filter:brightness(0) invert(1)}.mobile-close-btn{background:0;border:0;color:#fff;font-size:1.5rem;cursor:pointer;padding:.5rem;border-radius:50%;transition:background .2s ease}.mobile-close-btn:hover{background:rgba(255,255,255,0.1)}.mobile-nav-menu{padding:1rem 0}.mobile-nav-item{border-bottom:1px solid #f0f0f0}.mobile-nav-item:last-child{border-bottom:0}.mobile-nav-link{display:flex;align-items:center;padding:1rem;color:#333;text-decoration:none;transition:background .2s ease;position:relative}.mobile-nav-link:hover,.mobile-nav-item-active .mobile-nav-link{background:#f5f7fa;color:#1a237e}.mobile-nav-icon{display:flex;align-items:center;margin-right:.75rem;width:1.25rem;height:1.25rem}.mobile-nav-icon img{width:1.25rem;height:1.25rem;object-fit:contain}.mobile-nav-title{flex:1;font-size:.9rem;font-weight:500}.mobile-nav-arrow{font-size:.75rem;color:#666;transition:transform .3s ease}.mobile-nav-arrow-rotate{transform:rotate(180deg)}.mobile-nav-submenu{max-height:0;overflow:hidden;transition:max-height .3s ease;background:#f8f9fa}.mobile-nav-submenu-open{max-height:20rem}.mobile-nav-submenu-item{display:block;padding:.75rem 1rem .75rem 2.5rem;color:#666;text-decoration:none;font-size:.85rem;border-bottom:1px solid #e9ecef;transition:background .2s ease,color .2s ease}.mobile-nav-submenu-item:hover,.mobile-nav-submenu-item-active{background:#e3f2fd;color:#1a237e}.mobile-nav-submenu-item:last-child{border-bottom:0}@media(max-width:1000px){.nav-header{padding:0 1rem;width:100%;box-sizing:border-box}.nav-logo{height:2rem;margin-right:1rem}.nav-logo img{height:2rem;width:auto;filter:drop-shadow(0 1px 4px rgba(0,0,0,0.18))}.nav-menu-item{position:relative;margin:0 .8rem;display:flex;align-items:center;height:4.375rem}.nav-menu-item>a{font-size:.75rem}.nav-menu{display:none}.mobile-menu-toggle{display:flex}.nav-right-icons{position:static;margin-left:0}.nav-icon{display:inline-flex;align-items:center;margin-right:1.5rem;width:1.25rem;height:1.25rem}}@media(max-width:600px){.nav-header{padding:0 .75rem}.mobile-drawer{width:85%}.mobile-nav-link{padding:.875rem 1rem}.mobile-nav-title{font-size:.875rem}.mobile-nav-submenu-item{padding:.625rem 1rem .625rem 2.25rem;font-size:.8rem}}@media(max-width:400px){.mobile-drawer{width:90%}.mobile-nav-link{padding:.75rem 1rem}.mobile-nav-title{font-size:.8rem}.mobile-nav-submenu-item{padding:.5rem 1rem .5rem 2rem;font-size:.75rem}}