.knowledge-center .kn-list{gap:7px}
.knowledge-center .kn-topic summary{display:flex;align-items:center;justify-content:space-between;list-style:none;cursor:pointer;padding:5px 0;color:#536f80;font-size:14px}
.knowledge-center .kn-topic summary::-webkit-details-marker{display:none}
.knowledge-center .kn-topic summary::after{content:'展开 ▾';color:#147f8d;font-weight:600}
.knowledge-center .kn-topic details[open] summary::after{content:'收起 ▴'}
.knowledge-center .kn-article{gap:16px;padding:14px;border-radius:0;min-height:100px;box-shadow:none}
.knowledge-center .kn-thumb{width:125px;height:74px;flex-basis:125px;border-radius:4px;background:#f7f9fb}
.knowledge-center .kn-thumb img{border-radius:4px}
.knowledge-center .kn-copy h3{font-size:17px;line-height:1.45;margin:0 0 4px;font-weight:700}
.knowledge-center .kn-copy p{display:block;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;font-size:14px;line-height:1.5;margin:0 0 3px}
.knowledge-center .kn-copy small{display:block;font-size:12px;line-height:1.5;color:#7b8e9b;font-weight:400}
.knowledge-center .kn-article:hover h3{color:#c71930}
@media(max-width:640px){.knowledge-center .kn-article{padding:10px;gap:10px}.knowledge-center .kn-thumb{width:85px;height:60px;flex-basis:85px}.knowledge-center .kn-copy h3{font-size:15px}.knowledge-center .kn-copy p{font-size:13px}}