* {
    padding: 0;
    margin: 0;
}

/* 运营商下拉菜单样式 */
        .operator-dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            width: 120px;
            background-color: #fff;
            border: 1px solid #eee;
            border-radius: 4px;
            box-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
            z-index: 100;
            padding: 5px 0;
        }
        
        .dropdown-item {
            padding: 8px 16px;
            cursor: pointer;
            transition: all 0.3s;
            color: #333;
        }
        
        .dropdown-item:hover {
            background-color: #f5f7fa;
            color: #409eff;
        }

/* 移动端菜单样式 */
        .mobile-menu-toggle {
            display: none;
            cursor: pointer;
            font-size: 24px;
            color: #333;
            padding: 12px;
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(255, 255, 255, 0.9);
            border-radius: 50%;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            /* box-shadow: 0 4px 12px rgba(0,0,0,0.15); */
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
            /* border: 1px solid rgba(255, 255, 255, 0.2); */
        }
        
        .mobile-menu-toggle:hover {
            background: rgba(64, 158, 255, 0.9);
            color: white;
            transform: translateY(-50%) scale(1.05);
            /* box-shadow: 0 6px 20px rgba(64, 158, 255, 0.3); */
        }
        
        .mobile-menu {
            display: none;
            background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
            border-top: 1px solid #e4e7ed;
            position: fixed;
            top: 0;
            right: -100%;
            width: 80%;
            height: 100vh;
            z-index: 1000;
            /* box-shadow: 0 8px 32px rgba(0,0,0,0.12); */
            backdrop-filter: blur(10px);
            border-radius: 0 0 16px 16px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: right 0.3s ease;
        }
        
        .mobile-menu.active {
            right: 0;
        }
        
        /* 移动端菜单遮罩层 */
        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        
        .mobile-menu-overlay.active {
            display: block;
            opacity: 1;
        }
        
        .mobile-menu-item {
            padding: 15px 0;
            border-bottom: 1px solid #f0f0f0;
            cursor: pointer;
            font-size: 16px;
            color: #333;
            transition: all 0.3s ease;
        }
        
        .mobile-menu-item:hover {
            color: #409EFF;
            padding-left: 10px;
        }
        
        .mobile-menu-item:last-child {
            border-bottom: none;
        }
        
        .mobile-menu-item span {
            color: #333;
            text-decoration: none;
            display: block;
            font-size: 16px;
            font-weight: 500;
            transition: color 0.3s ease;
        }
        
        .mobile-menu-item:hover span {
            color: #409eff;
        }

        /* 添加顶部状态栏适配 */
            .top_box {
                padding-top: env(safe-area-inset-top, 0);
            }

             

@media (max-width: 768px) {
            /* 移动端强制防溢出 */
            .home-container, .top_box, .mobile-menu, .mobile-menu-toggle {
                max-width: 100vw !important;
                overflow-x: hidden !important;
            }
            
            .mobile-menu-toggle {
                display: flex !important;
            }
            
            .mobile-menu {
                display: block !important;
                position: fixed;
                top: 0;
                right: -100%;
                width: 80%;
                height: 100vh;
                background: #fff;
                box-shadow: -2px 0 10px rgba(0,0,0,0.1);
                transition: right 0.3s ease;
                z-index: 1000;
                padding: 20px;
                box-sizing: border-box;
            }
            
            .mobile-menu.active {
                right: 0;
            }
            
            .tab_box {
                display: none;
            }
            
            .top_box .width-center {
                position: relative;
                padding-left: 60px;
                padding-right: 15px;
                padding-top: 5px;
                height: 60px;
                max-width: 100vw;
                box-sizing: border-box;
            }
            
             .logo {
                margin: 0 auto;
                height: 25px !important;
                width: auto;
                max-width: calc(100vw - 120px);
            }
            
            .top_box {
                background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
                /* box-shadow: 0 4px 20px rgba(0,0,0,0.08); */
                backdrop-filter: blur(10px);
                border-bottom: 1px solid rgba(228, 231, 237, 0.6);
            }
            
            .home-container .top_box {
                position: sticky;
                top: 0;
                z-index: 100;
            }
            
            .mobile-menu-toggle {
                left: 15px;
                width: 44px;
                height: 44px;
                font-size: 20px;
            }
            
            .mobile-menu {
                border-radius: 0 0 20px 20px;
                overflow: hidden;
                /* box-shadow: 0 8px 32px rgba(0,0,0,0.12); */
                border: none;
                background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
                backdrop-filter: blur(20px);
            }
        }