/* ================= 页脚 ================= */
.site-footer {
    background-color: #1E4C4C;
background-image: url(/static/upload/20260809/foot.jpg);
background-position: right top;
background-repeat: no-repeat;
background-size: 500px auto;  /* 或者 contain / cover */
    color: #ffffff;
    padding: 80px 20px 40px;
    position: relative;
    overflow: hidden;
}

.footer-content {
    max-width: 1260px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 80px;
    margin-bottom: 80px;
}

.footer-nav-col {
    min-width: 100px; text-align:center;
}

.footer-nav-col h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 25px;
    color: #ffffff;
    letter-spacing: 1px;
}
        .footer-nav-col h4 img {
            max-height: 28px;
            width: auto; margin:auto;max-width: 100%;
            display: block;
        }

.footer-nav-col ul {
    list-style: none;
}

.footer-nav-col ul li {
    margin-bottom: 14px;
}

.footer-nav-col ul li a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
    letter-spacing: 0.5px;
}

.footer-nav-col ul li a:hover {
    color: #ffffff;
}

.footer-slogan {
    display: flex;
    justify-content: space-between;
    gap: 60px;
    margin-bottom: 60px;
    color: rgba(255,255,255,0.18);
    font-size: 16px;
    line-height: 2;
    letter-spacing: 1px;
}
.footer-slogan img{ max-width:100%;}
.footer-slogan .cn { flex: 1; }
.footer-slogan .en { flex: 1; }

.footer-copy {
    color: rgba(255,255,255,0.55);
    font-size: 13px;
    line-height: 1.8;
    letter-spacing: 0.5px;
}

.footer-decoration {
    position: absolute;
    top: 0;
    right: 0;
    width: 500px;
    height: 500px;
    pointer-events: none;
    z-index: 0;
}

/* ================= 页脚响应式 ================= */
@media screen and (max-width: 1024px) {
    .site-footer { padding: 60px 20px 30px; }
    .footer-decoration { width: 300px; height: 300px; }
    .footer-nav { gap: 40px; margin-bottom: 60px; }
    .footer-nav-col { min-width: 90px; }
    .footer-nav-col h4 { font-size: 15px; margin-bottom: 18px; }
    .footer-nav-col ul li a { font-size: 13px; }
    .footer-slogan { font-size: 14px; gap: 30px; margin-bottom: 40px; }
}

@media screen and (max-width: 768px) {
    .site-footer { padding: 40px 20px 25px; }
    .footer-decoration { width: 200px; height: 200px; opacity: 0.5; }
    .footer-nav { gap: 30px; margin-bottom: 40px; }
    .footer-nav-col { min-width: calc(50% - 15px); }
    .footer-nav-col h4 { font-size: 15px; margin-bottom: 12px; }
    .footer-nav-col ul li { margin-bottom: 10px; }
    .footer-nav-col ul li a { font-size: 13px; }
    .footer-slogan { 
        flex-direction: column; 
        gap: 20px; 
        font-size: 13px; 
        line-height: 1.8;
        margin-bottom: 30px;
    }
    .footer-copy { font-size: 12px; }
}