/* 页脚样式 */
    * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        
        .footer {
            background-color: #111;
            color: #ccc;
            padding: 50px 0 20px;
             margin-top: 50px;
        }
        
        .footertop {
            border-bottom: 2px solid #333;
            padding-bottom: 30px;
        }
        
        .footer-container {
            width: 90%;
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .footer-nav {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            padding-bottom: 30px;
            margin-bottom: 20px;
        }
        
        .nav-column {
            margin-bottom: 20px;
            min-width: 160px;
        }
        
        .nav-column h3 {
            font-size: 18px;
            font-weight: 700;
            cursor: pointer;
            color: #fff;
            margin-bottom: 15px;
            padding-bottom: 5px;
            border-bottom: 1px solid #333;
            display: inline-block;
        }
        .nav-column h3:hover{
            color: #0084ff;
        }
        .nav-column ul {
            list-style: none;
        }
        
        .nav-column li {
            margin: 8px 0;
            cursor: pointer;
            transition: color 0.3s;
        }
        
        .nav-column li:hover {
            color:#0084ff;
        }
        
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
        }
        
        .footer-logo img {
           width: 150px;
           height: auto;
        }
        
        
        .contact-info {
            display: flex;
            align-items: center;
            gap: 100px;
            margin: 4px 0;
            color: #aaa;
        }
        
        .contact-info i {
            margin-right: 8px;
            color: #999;
            width: 20px;
            text-align: center;
        }
        
        .footer-qrcode img {
            max-width: 90px;
            border: 1px solid #333;
            border-radius: 5px;
            transition: all 0.3s;
        }
        
        .footer-qrcode:hover img {
            transform: scale(1.05);
            border-color: #555;
        }
/* @media (max-width: 374px) {
  
    .footer-nav {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 15px 10px; 
        padding-bottom: 20px;
        margin-bottom: 15px;
        align-items: start; 
    }

    .nav-column {
        min-width: auto; 
        margin-bottom: 0; 
         display: flex;
        flex-direction: column;
        align-items: center;
    }

    .nav-column h3 {
        font-size: 15px; 
        margin-bottom: 8px;
        padding-bottom: 3px;
    }

    .nav-column li {
        font-size: 13px; 
        margin: 5px 0;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 15px;
        padding-top: 15px;
    }

    .footer-logo img {
        width: 110px; 
    }

    .contact-info {
        flex-direction: column;
        gap: 8px;
        font-size: 12px;
        align-items: center;
    }

    .footer-qrcode img {
        max-width: 70px; 
    }

    .footer {
        padding: 25px 0 15px;
        margin-top: 30px;
    }

    .footertop {
        padding-bottom: 20px;
    }
}


@media (min-width: 375px) and (max-width: 413px) {
    .footer-nav {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px 15px;
        padding-bottom: 25px;
        margin-bottom: 20px;
        align-items: start; 
    }

    .nav-column {
        min-width: auto;
        margin-bottom: 0;
         display: flex;
        flex-direction: column;
        align-items: center;
    }

    .nav-column h3 {
        font-size: 16px;
        margin-bottom: 10px;
    }

    .nav-column li {
        font-size: 14px;
        margin: 6px 0;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 20px;
    }

    .footer-logo img {
        width: 120px;
    }

    .contact-info {
        flex-direction: column;
        gap: 10px;
        font-size: 13px;
        align-items: center;
    }

    .footer-qrcode img {
        max-width: 80px;
    }

    .footer {
        padding: 30px 0 15px;
    }
}


@media (min-width: 414px) and (max-width: 767px) {
    .footer-nav {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 25px 20px;
        padding-bottom: 30px;
        align-items: start; 
    }

    .nav-column {
        min-width: auto;
        margin-bottom: 0;
          display: flex;
        flex-direction: column;
        align-items: center;
    }

    .nav-column h3 {
        font-size: 17px;
        margin-bottom: 12px;
    }

    .nav-column li {
        font-size: 15px;
        margin: 7px 0;
    }

    .footer-bottom {
        flex-direction: column; 
        justify-content: center;
        align-items: center;
        gap: 20px;
        padding-top: 20px;
    }

    .footer-logo img {
        width: 130px;
    }

    .contact-info {
        flex-direction: column;
        gap: 10px;
        font-size: 14px;
        align-items: flex-start;
    }

    .footer-qrcode img {
        max-width: 85px;
    }

    .footer-bottom > div {
        flex: 1 1 auto;
        text-align: center;
    }

    .contact-info {
        align-items: center;
    }
}


@media (min-width: 768px) and (max-width: 1023px) {
    .footer-nav {
        display: grid;
        grid-template-columns: repeat(2, 1fr); 
        gap: 30px 25px;
        padding-bottom: 30px;
        align-items: start; 
        max-width: 80%; 
        margin: 0 auto 20px; 
    }

    .nav-column {
        min-width: auto;
        margin-bottom: 0;
        display: flex;
        flex-direction: column;
    }

    .nav-column h3 {
        font-size: 18px;
        margin-bottom: 15px;
    }

    .nav-column li {
        font-size: 16px;
        margin: 8px 0;
    }

    .footer-bottom {
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 20px;
        padding-top: 25px;
    }

    .footer-logo img {
        width: 140px;
    }

    .contact-info {
        flex-direction: row; 
        gap: 30px;
        font-size: 15px;
    }

    .footer-qrcode img {
        max-width: 90px;
    }

    .footer-bottom > div {
        flex: 1 1 auto;
        text-align: center;
    }
} */