/* ============================================================
   xk2026 — 新科小落地页 PbootCMS 皮肤（工业风 · 深蓝×琥珀）
   2026-09-15 v1  自研轻量响应式，无 bootstrap 依赖
   ============================================================ */
*{margin:0;padding:0;box-sizing:border-box}
body{font:15px/1.8 "Microsoft YaHei","PingFang SC",Arial,sans-serif;color:#3a4149;background:#f5f6f8}
a{color:inherit;text-decoration:none;transition:all .25s}
a:hover{text-decoration:none;color:#e8a33d}
img{max-width:100%;border:0}
ul{list-style:none}
.xkWrap{max-width:1180px;margin:0 auto;padding:0 16px}

/* ---- 顶部欢迎条 ---- */
.xkTopBar{background:#122540;color:#9fb3cc;font-size:13px;line-height:34px}
.xkTopBar .xkWrap{display:flex;justify-content:space-between;flex-wrap:wrap}
.xkTopBar b{color:#e8a33d}

/* ---- 头部 ---- */
.xkHeadMain{background:linear-gradient(135deg,#1f3a5f 0%,#2a4d7a 100%);padding:18px 0}
.xkHeadFlex{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.xkBrand{display:flex;align-items:center;gap:14px}
.xkBrand img{height:52px}
.xkBrandTxt strong{display:block;font-size:22px;color:#fff;letter-spacing:1px}
.xkBrandTxt em{display:block;font-style:normal;font-size:14px;color:#e8a33d;letter-spacing:2px;margin-top:2px}
.xkTelBox{display:flex;gap:22px}
.telItem{background:rgba(232,163,61,.15);border:1px solid rgba(232,163,61,.45);border-radius:10px;padding:6px 16px;text-align:center}
.telItem .tl{display:block;font-size:12px;color:#bcd0e8}
.telItem b{font-size:18px;color:#ffd28a;font-family:Consolas,Arial}

/* ---- 导航 ---- */
.xkNav{background:#16294a;box-shadow:0 3px 8px rgba(0,0,0,.18)}
.xkNavBtn{display:none;background:none;border:0;color:#fff;font-size:15px;padding:10px 0;cursor:pointer}
.xkNavList{display:flex;flex-wrap:wrap}
.xkNavList li{position:relative}
.xkNavList li a{display:block;padding:13px 22px;color:#cfdcee;font-size:15px}
.xkNavList li:hover a,.xkNavList li.on a{color:#fff;background:linear-gradient(180deg,rgba(232,163,61,.28),rgba(232,163,61,.08));box-shadow:inset 0 -3px 0 #e8a33d}

/* ---- Hero ---- */
.xkHero{background:linear-gradient(135deg,#1f3a5f 0%,#2a4d7a 55%,#3a5f8f 100%);color:#fff;padding:64px 0;text-align:center;position:relative;overflow:hidden}
.xkHero::after{content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;background:rgba(232,163,61,.14)}
.xkHero h1{font-size:34px;letter-spacing:3px;position:relative;z-index:1}
.xkHeroSub{max-width:760px;margin:14px auto 0;color:#c9d7ea;font-size:15px;position:relative;z-index:1}
.xkHeroBtns{margin-top:26px;position:relative;z-index:1}
.btnMain{display:inline-block;background:#e8a33d;color:#1f2937!important;font-weight:bold;padding:11px 34px;border-radius:40px}
.btnMain:hover{background:#f2b95c;transform:translateY(-2px)}
.btnGhost{display:inline-block;border:1px solid rgba(255,255,255,.65);color:#fff!important;padding:10px 32px;border-radius:40px;margin-left:12px}
.btnGhost:hover{border-color:#e8a33d;color:#e8a33d!important}

/* ---- 通用区块 ---- */
.xkSec{padding:46px 0}
.xkSecHead{margin-bottom:26px;position:relative}
.xkSecHead h2{font-size:24px;color:#1f3a5f}
.xkSecHead h2 em{font-style:normal;color:#e8a33d}
.xkLine{display:block;width:52px;height:4px;background:linear-gradient(90deg,#e8a33d,#f2b95c);border-radius:2px;margin-top:8px}
.xkMore{position:absolute;right:0;top:8px;font-size:14px;color:#7a8699}

/* ---- 首页文章卡 ---- */
.xkCards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.xkCard{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 2px 10px rgba(18,37,64,.08);display:flex;flex-direction:column}
.xkCard:hover{transform:translateY(-4px);box-shadow:0 8px 20px rgba(18,37,64,.16)}
.xkCardImg{height:150px;background:#eef1f5;overflow:hidden}
.xkCardImg img{width:100%;height:100%;object-fit:cover}
.xkCardBody{padding:14px 16px 16px;flex:1;display:flex;flex-direction:column}
.xkCardBody h3{font-size:15px;color:#1f3a5f;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.xkCardBody p{font-size:13px;color:#7a8699;margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.xkCardDate{margin-top:auto;padding-top:10px;font-size:12px;color:#a5afbf}

/* ---- 关于区 ---- */
.xkAboutSec{background:#fff}
.xkAboutFlex{display:flex;gap:40px;align-items:flex-start}
.xkAboutTxt{flex:1}
.xkAboutTxt p{color:#4a5058;margin:14px 0 20px}
.xkContactCard{width:300px;background:linear-gradient(160deg,#1f3a5f,#2a4d7a);border-radius:12px;padding:26px;color:#fff}
.xkContactCard h3{font-size:19px;margin-bottom:16px;color:#e8a33d}
.xkContactCard p{display:flex;justify-content:space-between;border-bottom:1px dashed rgba(255,255,255,.2);padding:8px 0;font-size:14px}
.xkContactCard p span{color:#bcd0e8}
.xkContactCard .btnGhost{display:block;text-align:center;margin:18px 0 0 0}

/* ---- 列表页 ---- */
.xkPageHead{background:linear-gradient(135deg,#1f3a5f,#2a4d7a);color:#fff;padding:30px 0}
.xkPageHead h2{font-size:24px;letter-spacing:2px}
.xkPageHead span{font-size:13px;color:#c9d7ea}
.xkNewsList{background:#fff;border-radius:10px;padding:10px 26px;box-shadow:0 2px 10px rgba(18,37,64,.06)}
.xkNewsItem{display:flex;gap:20px;padding:18px 4px;border-bottom:1px dashed #e3e7ee;align-items:flex-start}
.xkNewsItem:last-child{border-bottom:0}
.xkNewsDate{flex:0 0 96px;background:#f0f3f8;border-radius:8px;text-align:center;padding:8px 4px;font-size:13px;color:#1f3a5f}
.xkNewsTxt h3{font-size:16px;color:#1f3a5f}
.xkNewsTxt p{font-size:13px;color:#7a8699;margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.xkNewsItem:hover h3{color:#e8a33d}
.xkPageBar{margin-top:24px;text-align:center}
.xkPageBar a,.xkPageBar span{display:inline-block;padding:6px 14px;margin:0 4px;background:#fff;border-radius:6px;border:1px solid #e3e7ee;font-size:14px;color:#3a4149}
.xkPageBar span{background:#1f3a5f;color:#fff;border-color:#1f3a5f}

/* ---- 详情页 ---- */
.xkDetail{background:#fff;border-radius:10px;padding:34px 40px;box-shadow:0 2px 10px rgba(18,37,64,.06)}
.xkDetailTitle{font-size:24px;color:#1f3a5f;line-height:1.5}
.xkDetailInfo{text-align:center;color:#a5afbf;font-size:13px;border-bottom:1px solid #eef1f5;padding:14px 0 16px;margin-bottom:24px}
.xkContent{color:#4a5058;font-size:15px;line-height:2}
.xkContent p{margin-bottom:12px}
.xkContent img{display:block;max-width:100%;height:auto;margin:14px auto;border-radius:6px}
.xkContent span{font-size:15px!important;color:#4a5058!important;font-weight:normal!important}
.xkPreNext{border-top:1px solid #eef1f5;margin-top:26px;padding-top:16px;font-size:14px;color:#7a8699}
.xkPreNext p{margin:4px 0}
.xkDetailCta{margin-top:26px;background:linear-gradient(135deg,#fdf6ea,#fbead0);border:1px solid #f2d9ac;border-radius:10px;padding:16px 22px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.xkDetailCta span{color:#8a6420;font-weight:bold}
.xkDetailCta b{color:#1f3a5f;margin-left:auto}
.xkDetailCta .btnMain{margin-left:0}

/* ---- 页脚 ---- */
.xkFoot{background:#122540;color:#9fb3cc;margin-top:20px;padding-top:38px}
.xkFootFlex{display:flex;gap:60px;flex-wrap:wrap;padding-bottom:26px}
.xkFootInfo{flex:1;min-width:280px}
.xkFootInfo strong{color:#fff;font-size:18px;letter-spacing:1px}
.xkFootInfo p{font-size:13px;margin-top:10px}
.xkFootTel b{color:#e8a33d;font-family:Consolas,Arial}
.xkFootLinks{display:flex;flex-direction:column}
.xkFootLinks strong{color:#fff;margin-bottom:10px}
.xkFootLinks a{font-size:13px;padding:3px 0}
.xkCopy{border-top:1px solid rgba(255,255,255,.08);padding:14px 0;font-size:12px;text-align:center;color:#6c7f99}

/* ---- 移动端 ---- */
@media (max-width:860px){
  .xkCards{grid-template-columns:repeat(2,1fr)}
  .xkAboutFlex{flex-direction:column}
  .xkContactCard{width:100%}
  .xkBrandTxt strong{font-size:17px}
  .xkBrandTxt em{font-size:12px;letter-spacing:0}
  .xkTelBox{gap:10px}
  .telItem{padding:4px 10px}
  .telItem b{font-size:15px}
  .xkHero h1{font-size:24px}
  .xkHero{padding:44px 0}
  .xkNavBtn{display:block}
  .xkNavList{display:none;flex-direction:column;padding-bottom:8px}
  .xkNavList.xkOpen{display:flex}
  .xkDetail{padding:22px 18px}
  .xkNewsItem{flex-direction:column;gap:6px}
  .xkNewsDate{flex:none;width:110px}
  .xkFootFlex{gap:24px}
}
@media (max-width:480px){
  .xkCards{grid-template-columns:1fr}
  .xkTopBar{font-size:12px}
}