/* === 产品中心下拉菜单(电缆类型栏目)：字号加大 + 布局美化 === */
/* 覆盖主题原样式(本文件在主题 CSS 之后加载) */

.nav-con {
    background: #fff;
    border-top: 3px solid #07338a;
    box-shadow: 0 16px 36px rgba(7, 51, 138, .13);
    height: 0;
    max-height: 0;
    overflow: hidden;
    text-align: left;
    transition: max-height .45s ease;
    /* 栏目组 + 配图整体居中 */
    display: flex;
    justify-content: center;
    align-items: flex-start;
}
.head1 .hea-top .rig .menu ul > li.nav2:hover .nav-con,
.menu ul > li.nav2:hover .nav-con {
    height: auto;
    max-height: 600px;
}

/* 栏目区：弹性网格，四列自动排列 */
.nav-con .left {
    width: auto;
    max-width: 940px;
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 24px 46px;
    padding: 32px 0 36px;
    vertical-align: top;
}
.nav-con .left .left-nav {
    float: none;
    width: auto;
    min-width: 172px;
    max-width: 290px;
    margin: 0;
    text-align: left;
}

/* 系列标题：16px + 主色下划线 */
.nav-con .left .left-nav h4 {
    font-size: 16px;
    line-height: 1.5;
    font-weight: 600;
    color: #12213d;
    letter-spacing: .5px;
    border-bottom: 2px solid #07338a;
    padding-bottom: 9px;
    margin-bottom: 12px;
    white-space: nowrap;
    overflow: visible;
    text-overflow: clip;
}
.nav-con .left .left-nav h4 a {
    font-size: 16px;
    font-weight: 600;
    color: #12213d;
}
.nav-con .left .left-nav h4 a:hover { color: #07338a; }

/* 具体电缆类型：14px / 32px 行高 + 圆点 + 悬停高亮 */
.nav-con .left .left-nav p { margin: 0; }
.nav-con .left .left-nav p a {
    position: relative;
    display: block;
    font-size: 14px;
    line-height: 32px;
    color: #4a5568;
    padding-left: 15px;
    background: none;
    border-radius: 4px;
    box-sizing: border-box;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: color .2s, background .2s, padding-left .2s;
}
.nav-con .left .left-nav p a::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 14px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #c9d4e8;
    transition: background .2s;
}
.nav-con .left .left-nav p a:hover {
    color: #07338a;
    font-weight: 600;
    background: #f3f6fc;
    padding-left: 20px;
}
.nav-con .left .left-nav p a:hover::before { background: #07338a; }

/* 右侧配图 */
.nav-con .rigg {
    flex: 0 0 268px;
    width: 268px;
    height: auto;
    padding: 34px 0 34px 26px;
    vertical-align: top;
}
.nav-con .rigg img {
    width: 100%;
    border-radius: 6px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, .1);
}

@media (max-width: 1200px) {
    .nav-con .rigg { display: none; }
    .nav-con .left { max-width: 100%; padding-left: 24px; padding-right: 24px; gap: 20px 36px; }
}
@media (max-width: 900px) {
    .nav-con .left .left-nav h4, .nav-con .left .left-nav h4 a { font-size: 15px; }
    .nav-con .left .left-nav p a { font-size: 13.5px; line-height: 30px; }
}