* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            color: #333;
            background-color: #f8f9fa;
            line-height: 1.6;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 导航栏 */
        header {
            background: #fff;
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 999;
        }
        .nav-box {
            height: 70px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #1677ff;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo-img {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            object-fit: cover;
        }
        .nav-list {
            display: flex;
            align-items: center;
        }
        .nav-list a {
            margin-left: 35px;
            text-decoration: none;
            color: #333;
            font-size: 16px;
            transition: color 0.3s;
        }
        .nav-list a:hover {
            color: #1677ff;
        }
        /* 导航登录按钮 */
        .login-btn {
            margin-left: 35px;
            padding: 8px 20px;
            background-color: #1677ff;
            color: #fff !important;
            border-radius: 30px;
            transition: all 0.3s;
			text-decoration: none
			
        }
        .login-btn:hover {
            background-color: #0958d9;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(22,119,255,0.25);
        }

        /* 首页Banner */
        .banner {
            margin-top: 70px;
            height: 520px;
/*            background: linear-gradient(135deg, #1677ff 0%, #40a9ff 100%);*/
            display: flex;
            align-items: center;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .banner-bg-img {
            position: absolute;
            width: 100%;
            height: 100%;
            object-fit: cover;
/*            opacity: 0.15;*/
            z-index: 1;
        }
        .banner-text {
            position: relative;
            z-index: 2;
        }
        .banner-text h1 {
            font-size: 48px;
            margin-bottom: 20px;
        }
        .banner-text p {
            font-size: 20px;
            opacity: 0.9;
            margin-bottom: 40px;
        }
        .btn {
            display: inline-block;
            padding: 14px 36px;
            background: #fff;
            color: #1677ff;
            font-size: 18px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 500;
            transition: all 0.3s;
            margin: 0 10px;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 20px rgba(22,119,255,0.3);
        }
        .btn-login {
            background: transparent;
            color: #fff;
            border: 2px solid #fff;
        }
        .btn-login:hover {
            background: rgba(255,255,255,0.15);
        }

        /* 通用模块标题 */
        .module-title {
            text-align: center;
            margin: 80px 0 50px;
        }
        .module-title h2 {
            font-size: 32px;
            color: #222;
            margin-bottom: 12px;
        }
        .module-title p {
            color: #666;
            font-size: 16px;
        }

        /* 产品概述 */
        .about-box {
            background: #fff;
            border-radius: 16px;
            padding: 50px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
            margin-bottom: 60px;
            display: flex;
            gap: 40px;
            align-items: center;
        }
        .about-img {
            width: 50%;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.08);
        }
        .about-text {
            width: 50%;
        }
        .about-text p {
            font-size: 16px;
            color: #555;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        /* 核心优势 */
        .advantage-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 30px;
            margin-bottom: 80px;
        }
        .advantage-item {
            width: 23%;
            background: #fff;
            padding: 35px 25px;
            border-radius: 16px;
            text-align: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.04);
            transition: transform 0.3s;
        }
        .advantage-item:hover {
            transform: translateY(-8px);
        }
        .adv-icon {
            width: 60px;
            height: 60px;
            margin-bottom: 20px;
            object-fit: contain;
        }
        .advantage-item h3 {
            font-size: 20px;
            color: #222;
            margin-bottom: 15px;
        }
        .advantage-item p {
            color: #666;
            font-size: 15px;
        }

        /* 功能展示 */
        .func-list {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 25px;
            margin-bottom: 80px;
        }
        .func-item {
            width: 48%;
            background: #fff;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.04);
            display: flex;
            gap: 20px;
            align-items: center;
        }
        .func-img {
            width: 100px;
            height: 100px;
            border-radius: 10px;
            object-fit: cover;
        }
        .func-text {
            flex: 1;
        }
        .func-text h3 {
            color: #1677ff;
            font-size: 19px;
            margin-bottom: 12px;
        }
        .func-text p {
            color: #555;
            font-size: 15px;
            line-height: 1.7;
        }

        /* 登录弹窗样式 */
        .login-mask {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 1000;
            display: none;
            justify-content: center;
            align-items: center;
        }
        .login-box {
            width: 400px;
            background: #fff;
            border-radius: 16px;
            padding: 40px;
            text-align: center;
        }
        .login-box h3 {
            font-size: 24px;
            color: #222;
            margin-bottom: 30px;
        }
        .login-input {
            width: 100%;
            height: 46px;
            padding: 0 15px;
            border: 1px solid #eee;
            border-radius: 8px;
            margin-bottom: 20px;
            font-size: 16px;
        }
        .submit-login {
            width: 100%;
            height: 46px;
            background: #1677ff;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            cursor: pointer;
            transition: 0.3s;
        }
        .submit-login:hover {
            background: #0958d9;
        }
        .close-login {
            margin-top: 15px;
            color: #999;
            cursor: pointer;
        }

        /* 底部版权 */
        footer {
            background: #222;
            color: #aaa;
            text-align: center;
            padding: 40px 0;
            margin-top: 40px;
        }
        footer p {
            font-size: 14px;
        }

        /* 移动端自适应 */
        @media (max-width: 768px) {
            .nav-list a {
                display: none;
            }
            .login-btn {
                display: block;
                margin: 0;
            }
            .banner-text h1 {
                font-size: 32px;
            }
            .banner-text p {
                font-size: 16px;
            }
            .banner {
                height: 400px;
            }
            .btn {
                margin: 8px;
                padding: 12px 28px;
            }
            .advantage-item {
                width: 48%;
            }
            .func-item {
                width: 100%;
                flex-direction: column;
                text-align: center;
            }
            .about-box {
                flex-direction: column;
                padding: 30px;
            }
            .about-img,.about-text {
                width: 100%;
            }
            .module-title h2 {
                font-size: 26px;
            }
            .login-box {
                width: 90%;
            }
        }