/* ===== Footer ===== */
.app-footer * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}

.app-footer .container {
    max-width: 1350px;
    margin: 0 auto;
    padding: 0 20px;
}

.app-footer {
    background-color: #2c3e50;
    color: #fff;
    margin-top: 60px;
}

.footer-main {
    padding: 50px 0;
    border-bottom: 1px solid #34495e;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
}

/* 左侧列 */
.footer-col-left .footer-logo .logo-text {
    font-size: 24px;
    font-weight: bold;
    color: #3498db;
    display: block;
    margin-bottom: 10px;
}

.footer-col-left .footer-logo .slogan {
    color: #bdc3c7;
    font-size: 14px;
}

.footer-col-left .footer-qrcode {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-col-left .footer-qrcode .qrcode-image {
    width: 120px;
    height: 120px;
    object-fit: contain;
    border-radius: 4px;
    background: #fff;
    padding: 4px;
}

.footer-col-left .footer-qrcode .qrcode-desc {
    font-size: 16px;
    color: #bdc3c7;
    margin-top: 10px;
    display: block;
}

/* 中间列 */
.footer-col-center .footer-nav .nav-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #fff;
}

.footer-col-center .footer-nav .nav-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.footer-col-center .footer-nav .nav-list {
    list-style: none;
    padding: 0;
}

.footer-col-center .footer-nav .nav-list li {
    margin-bottom: 10px;
}

.footer-col-center .footer-nav .nav-list li a {
    color: #bdc3c7;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-col-center .footer-nav .nav-list li a:hover {
    color: #3498db;
}

/* 右侧列 */
.footer-col-right .footer-contact .nav-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #fff;
}

.footer-col-right .footer-contact .contact-list {
    list-style: none;
    padding: 0;
    margin-bottom: 20px;
}

.footer-col-right .footer-contact .contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 14px;
    color: #bdc3c7;
    line-height: 1.5;
}

.footer-col-right .footer-contact .contact-list li .contact-icon {
    font-size: 18px;
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-col-right .footer-contact .consult-btn {
    display: inline-block;
    background-color: #3498db;
    color: #fff;
    border: none;
    padding: 10px 24px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.3s;
}

.footer-col-right .footer-contact .consult-btn:hover {
    background-color: #2980b9;
}

.footer-copyright {
    padding: 20px 0;
    background-color: #1a252f;
}

.footer-copyright .copyright-text {
    font-size: 12px;
    color: #95a5a6;
    text-align: center;
}

.footer-copyright .copyright-text a {
    color: #95a5a6;
    text-decoration: none;
}

.footer-copyright .copyright-text a:hover {
    color: #3498db;
}

/* ===== 响应式 ===== */
@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .footer-col-left {
        grid-column: 1 / -1;
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-col-left .footer-logo .logo-text {
        font-size: 28px;
    }

    .footer-col-left .footer-qrcode {
        align-items: center;
    }
}

@media (max-width: 768px) {
    .footer-main {
        padding: 30px 0;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-col {
        text-align: center;
    }

    .footer-col-center .footer-nav .nav-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .footer-col-center .footer-nav .nav-list {
        text-align: center;
    }

    .footer-col-right .footer-contact .contact-list li {
        justify-content: center;
    }

    .footer-col-right .footer-contact .consult-btn {
        display: block;
        width: 100%;
        text-align: center;
    }

    .footer-copyright {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .footer-col-center .footer-nav .nav-grid {
        grid-template-columns: 1fr;
    }

    .footer-col-left .footer-qrcode .qrcode-image {
        width: 100px;
        height: 100px;
    }
}