::-webkit-scrollbar {width: 8px;height: 8px;}
::-webkit-scrollbar-track {background: 0 0;}
::-webkit-scrollbar-thumb {background: #94a3b866; border-radius: 6px;}
::-webkit-scrollbar-thumb:hover { background: linear-gradient(90deg, #188AF1 0%, #1565F1 100%);}


.np7-seo-extra::before{
    content:"";
    position:absolute;
    top:120px;
    right:-40px;
    width:8px;height:8px;
    background:#a5b4fc;
    border-radius:50%;
    box-shadow:0 0 0 4px rgba(165,180,252,.12);
}
.np7-seo-extra::after{
    content:"";
    position:absolute;
    bottom:180px;
    left:-36px;
    width:10px;height:10px;
    background:#fff;
    border:2px solid #c7d2fe;
    border-radius:50%;
}

/* 标题：H2字体19px */
.np7-seo-extra h2{
    font-size:19px;
    color:#0f172a;
    margin:5px 0 22px;
    font-weight:700;
    position:relative;
    padding-left:30px;
    line-height:1.35;
}
.np7-seo-extra h2::before{
    content:"";
    position:absolute;
    left:0;
    top:8px;
    width:16px;height:16px;
    background:linear-gradient(135deg,#14b8a6,#06b6d4);
    border-radius:5px;
    box-shadow:0 10px 24px rgba(20,184,166,.28);
}
.np7-seo-extra h2::after{
    content:"";
    position:absolute;
    left:30px;
    bottom:-6px;
    width:42px;
    height:3px;
    background:linear-gradient(90deg,#14b8a6,#06b6d4);
    border-radius:2px;
}

.np7-seo-extra p{
    font-size:14px;
    color:#475569;
    line-height:1.8;
    margin-bottom:16px;
}
.np7-richtext p{font-size:14px;}
/* 列表左右两栏，精致留白 */
.np7-seo-extra ul{
    list-style:none;
    display:grid;
    grid-template-columns:1fr 1fr 1fr;
    gap:24px 36px;
    padding:0;
    background:transparent;
    box-shadow:none;
    margin-bottom:40px;
}

.np7-seo-extra li{
    font-size:14px;
    line-height:1.75;
    color:#475569;
    padding-left:32px;
    position:relative;
    margin-bottom:0;
    transition:color .35s ease, transform .35s ease;
    cursor:default;
}

/* LI图标缩小，渐变 #14b8a6,#06b6d4 */
.np7-seo-extra li::before{
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: linear-gradient(135deg, #14b8a6, #06b6d4);
    box-shadow: 0 8px 18px rgba(20, 184, 166, .24);
    transition: transform .35s ease, box-shadow .35s ease, background .35s ease;
}
.np7-seo-extra li::after{
   content: "";
    position: absolute;
    left: 5.4px;
    top: 11px;
    width: 3px;
    height: 6px;
    border: solid #fff;
    border-width: 0 1px 1px 0;
    transform: rotate(45deg);
    transition: transform .35s ease;
}

/* hover 精致动效 */
.np7-seo-extra li:hover{
    color:#0f172a;
    transform:translateX(6px);
}
.np7-seo-extra li:hover::before{
    transform:scale(1.12);
    box-shadow:0 12px 24px rgba(20,184,166,.36);
    background:linear-gradient(135deg,#0d9488,#0891b2);
}
.np7-seo-extra li:hover::after{
    transform:rotate(45deg) scale(1.08);
}

.np7-seo-extra li strong{
    display:inline-block;
    color:#0f172a;
    font-weight:700;
    font-size:15px;
    margin-right:6px;
    transition:color .35s ease;
}
.np7-seo-extra li:hover strong{
    color:#0d9488;
}

/* 移动端单列 */
@media(max-width:768px){
    body{padding:24px 14px;}
    .np7-seo-extra h2{font-size:19px;}
    .np7-seo-extra ul{grid-template-columns:1fr;gap:20px;}
}