* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
        }
        
        body {
            background-color: #f5f7fa;
            color: #333;
            transition: background-color 0.3s ease;
            padding: 20px;
            min-height: 100vh;
			max-width:1200px;
			margin:0 auto;
        }
        
        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 10px;
            padding: 10px;
            border-bottom: 1px solid #e1e4e8;
			background-color: #ccc;
			border-radius: 6px;
        }


        .footer {
			background-color: #ccc;
			margin:10px 0px 30px 0px;
        }
        .title {
            font-size: 28px;
            font-weight: 700;
            color: #00f;
        }
        
        .controls {
            display: flex;
            gap: 15px;
        }
        
        .btn {
            padding: 8px 16px;
            border: none;
            border-radius: 6px;
            cursor: pointer;
            font-weight: 600;
            transition: all 0.2s ease;
        }
        
        .btn-primary {
            background-color: #3498db;
            color: white;
        }
        
        .btn-primary:hover {
            background-color: #008800;
        }
        
        .btn-success {
            background-color: #2ecc71;
            color: white;
        }
        
        .btn-success:hover {
            background-color: #000033;
        }
        
        .btn-warning {
            background-color: #f39c12;
            color: white;
        }
        
        .btn-warning:hover {
            background-color: #00ccff;
        }
        
        .btn-danger {
            background-color: #e74c3c;
            color: white;
        }
        
        .btn-danger:hover {
            background-color: #660000;
        }
        
        .time-display {
            font-size: 16px;
            font-weight: 600;
            color: #7f8c8d;
            padding: 8px 16px;
            background-color: #ecf0f1;
            border-radius: 6px;
        }
        
        .sites-container {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
            margin: 10px 0px;
        }
        
        .site-card {
            background-color: snow;
            border-radius: 10px;
			border: 1px solid #393;
            box-shadow: 0px 10px 10px rgba(100, 100, 100, 0.6);
            padding: 10px;
            transition: transform 0.2s ease, box-shadow 0.2s ease;
            position: relative;
            overflow: hidden;
        }
        
        .site-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
        }
        
        .site-name {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: #2c3e50;
        }
        
        .site-url {
            color: #7f8c8d;
            font-size: 16px;
			font-weight:600;
            margin-bottom: 15px;
            word-break: break-all;
        }
        
        .site-actions {
            display: flex;
            gap: 10px;
            margin-top: 15px;
        }
        
        .site-actions .btn {
            padding: 6px 12px;
            font-size: 13px;
        }
        
        .speed-test {
            margin-top: 5px;
            padding-top: 5px;
            border-top: 1px solid gold;
        }

        .progress-bar {
            height: 6px;
            background-color: #ecf0f1;
            border-radius: 4px;
            overflow: hidden;
            margin-bottom: 8px;
        }
        
        .progress {
            height: 100%;
            background-color: #3498db;
            width: 0%;
            transition: width 0.3s ease;
        }
        
        .speed-result {
            font-size: 14px;
            font-weight: 600;
            color: #2c3e50;
        }
        
        /* 模态框样式 */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 1000;
            justify-content: center;
            align-items: center;
        }
        
        .modal-content {
            background-color: white;
            border-radius: 10px;
            padding: 30px;
            width: 90%;
            max-width: 500px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }
        
        .modal-title {
            font-size: 22px;
            margin-bottom: 20px;
            color: #2c3e50;
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #2c3e50;
        }
        
        .form-input {
            width: 100%;
            padding: 10px 15px;
            border: 1px solid #dcdfe6;
            border-radius: 6px;
            font-size: 16px;
            transition: border-color 0.2s ease;
        }
        
        .form-input:focus {
            outline: none;
            border-color: #3498db;
        }
        
        .color-options {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 10px;
        }
        
        .color-option {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            cursor: pointer;
            border: 3px solid transparent;
            transition: transform 0.2s ease;
        }
        
        .color-option:hover {
            transform: scale(1.1);
        }
        
        .color-option.selected {
            border-color: #2c3e50;
        }
        
        .modal-actions {
            display: flex;
            justify-content: flex-end;
            gap: 10px;
            margin-top: 20px;
        }
        
        /* 返回顶部按钮 */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background-color: #3498db;
            color: white;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            cursor: pointer;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            transition: all 0.3s ease;
            opacity: 0;
            visibility: hidden;
        }
        
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }
        
        .back-to-top:hover {
            background-color: #2980b9;
            transform: translateY(-3px);
        }
        
        /* 响应式设计 */
        @media (max-width: 768px) {
            .header {
                flex-direction: column;
                align-items: flex-start;
                gap: 5px;
				min-width: 320px;
            }
            
            .controls {
                width: 100%;
                justify-content: space-between;
            }
            
            .sites-container {
                grid-template-columns: 1fr;
				min-width: 320px;
            }
        }


        
/* 固定导航栏 */
.navbar {
	/*position: fixed;*/
	top: 0;
	left: 0;
	width: 100%;
	background: linear-gradient(135deg, #6e8efb, #a777e3);
	padding: 5px 0;
	box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
	z-index: 1000;
}

.nav-container {
	display: flex;
	flex-wrap: wrap;
	justify-content: center;
	max-width: 1200px;
	margin: 0 auto;
	padding: 0 15px;
}

.nav-item {
	flex: 1 0 calc(16.666% - 10px);
	margin: 5px;
	min-width: 120px;
	text-align: center;
}

.nav-item a {
	display: block;
	padding: 10px 5px;
	background-color: rgba(255, 255, 255, 0.2);
	color: white;
	text-decoration: none;
	border-radius: 8px;
	font-weight: bold;
	transition: all 0.3s ease;
	box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.nav-item a:hover {
	background-color: rgba(255, 255, 255, 0.3);
	transform: translateY(-2px);
}