/* ============================================================
   关于我们 / 公司简介 改版专用样式
   作用域：.au-* 前缀，不影响其他页面
   ============================================================ */

/* 页面头部：左大标题 + 右胶囊 tabs（关于我们 / 联系我们） */
.au-list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:14px;flex-wrap:wrap;float:left;width:100%;margin:0 0 26px}
.au-sec-title{font-size:26px;font-weight:700;color:#121528;line-height:1.3;margin:0}
.au-tabs{display:flex;gap:10px;margin:0;flex-wrap:wrap}
.au-tab{display:inline-block;font-size:14px;padding:7px 18px;border:1px solid #e7eaf2;border-radius:20px;color:#6b7280;background:#fff;transition:.2s}
.au-tab:hover{color:#458eec;border-color:#458eec}
.au-tab.on{background:#121528;color:#fff;border-color:#121528}

.au-wrap{float:left;width:100%;background:#fff;box-shadow:0 0 10px rgba(0,0,0,.1);border-radius:4px;padding:30px 32px;margin-bottom:60px}
.au-sec{margin-bottom:40px;float:left;width:100%}
.au-sec:last-child{margin-bottom:0}
.au-sec h2{font-size:24px;color:#121528;border-left:4px solid #ff6700;padding-left:12px;font-weight:700;margin-bottom:20px;line-height:1.3}
.au-sec .au-sub{color:#6b7280;font-size:14px;margin:-12px 0 18px;padding-left:16px}

/* ① 公司简介：左文右图 + 数据带 */
.au-top{display:grid;grid-template-columns:1.15fr 1fr;gap:28px}
.au-top h3{font-size:20px;color:#121528;margin-bottom:10px}
.au-top p{font-size:15px;color:#46506a;line-height:1.95;margin:10px 0;text-align:justify}
.au-top .pic{border-radius:12px;min-height:320px;background:#dfe4ee center/cover no-repeat}
.au-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.au-stat{background:#f6f8fc;border-radius:10px;text-align:center;padding:16px 8px}
.au-stat b{display:block;font-size:26px;color:#458eec;font-weight:700;line-height:1.3}
.au-stat span{font-size:13px;color:#6b7280}

/* ② 核心优势 */
.au-grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.au-adv{background:#fff;border:1px solid #e7eaf2;border-radius:14px;padding:24px 20px;transition:.2s}
.au-adv:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(18,21,40,.10)}
.au-adv .ic{width:46px;height:46px;border-radius:10px;background:#eef4fe;color:#458eec;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;margin-bottom:14px}
.au-adv h4{font-size:16px;color:#121528;margin-bottom:8px}
.au-adv p{font-size:13px;color:#6b7280;line-height:1.8}

/* ③ 产品系列 */
.au-grid8{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.au-series{display:block;background:#fff;border:1px solid #e7eaf2;border-radius:12px;padding:18px;transition:.2s}
.au-series:hover{border-color:#458eec;box-shadow:0 10px 24px rgba(18,21,40,.08)}
.au-series b{font-size:15px;color:#121528}
.au-series p{font-size:12.5px;color:#6b7280;margin-top:8px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.au-series .more{display:inline-block;margin-top:10px;font-size:13px;color:#458eec;font-weight:600}

/* ④ 联系条 */
.au-contact{background:#121528;border-radius:14px;color:#c7cde0;display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding:26px 30px}
.au-contact b{display:block;color:#fff;font-size:15px;margin-bottom:6px}
.au-contact .hot{color:#ff6700;font-weight:700;font-size:18px}

/* 响应式 */
@media (max-width:900px){
  .au-top{grid-template-columns:1fr}
  .au-top .pic{min-height:240px}
  .au-grid4,.au-grid8,.au-contact{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .au-grid4,.au-grid8,.au-contact,.au-stats{grid-template-columns:1fr}
  .au-wrap{padding:22px 18px}
}