/* ============================================
   坤龙科技 - 页脚样式 (高级版)
   ============================================ */

.main-footer {
    background: linear-gradient(180deg, #1a3a5c 0%, #15324f 100%);
    color: #b0c0d0;
    margin-top: 70px;
    padding: 60px 0 0;
    position: relative;
    overflow: hidden;
}
.main-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(2,141,193,.5), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 50px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,.08);
    position: relative;
}

.footer-col h4 {
    color: #fff;
    font-size: 17px;
    margin-bottom: 26px;
    position: relative;
    padding-left: 14px;
    font-weight: 600;
}
.footer-col h4::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 4px;
    background: linear-gradient(180deg, #028DC1, #026d97);
    border-radius: 2px;
}

/* 公司简介列 */
.footer-about .logo-text {
    color: #fff;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 14px;
    background: linear-gradient(135deg, #fff, #b0c0d0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.footer-about p {
    line-height: 1.9;
    font-size: 13px;
    color: #a0b0c0;
}

/* 导航列 */
.footer-nav li {
    margin-bottom: 14px;
}
.footer-nav a {
    color: #b0c0d0;
    font-size: 14px;
    transition: all .25s ease;
    display: inline-block;
    padding-left: 0;
}
.footer-nav a:hover {
    color: #fff;
    padding-left: 8px;
}
.footer-nav a::before {
    content: "\\00BB";
    margin-right: 6px;
    color: #028DC1;
    opacity: 0;
    transition: opacity .25s ease;
}
.footer-nav a:hover::before { opacity: 1; }

/* 联系方式列 */
.footer-contact li {
    padding: 7px 0;
    font-size: 13px;
    color: #b0c0d0;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.7;
}
.footer-contact .icon {
    color: #028DC1;
    font-weight: bold;
    flex-shrink: 0;
    width: 18px;
    text-align: center;
    margin-top: 2px;
}

/* 二维码 */
.footer-qr {
    text-align: center;
}
.footer-qr img {
    width: 110px;
    height: 110px;
    background: #fff;
    padding: 8px;
    border-radius: 8px;
    margin: 0 auto 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,.3);
    transition: all .3s ease;
}
.footer-qr:hover img { transform: scale(1.05) rotate(3deg); }
.footer-qr p {
    font-size: 13px;
    color: #a0b0c0;
}

/* 底部版权区 */
.footer-bottom {
    padding: 22px 0;
    text-align: center;
    font-size: 13px;
    color: #8898a8;
    background: rgba(0,0,0,.15);
    margin-top: 0;
}
.footer-bottom a { color: #8898a8; transition: color .2s; }
.footer-bottom a:hover { color: #fff; }

/* 友情链接 */
.footer-links {
    background: #0e2538;
    padding: 18px 0;
    text-align: center;
    font-size: 12px;
    color: #8898a8;
}
.footer-links strong {
    color: #b0c0d0;
    margin-right: 10px;
    font-weight: 500;
}
.footer-links a {
    color: #8898a8;
    margin: 0 10px;
    transition: color .2s;
}
.footer-links a:hover { color: #fff; }