/* ===========================================================
   凯贺威 KAIHUI — 内页样式（复用 style.css 的设计变量）
   =========================================================== */

/* ---------- 页头 Banner ---------- */
.page-hero{
  position:relative;padding:78px 0 68px;color:#fff;
  background:linear-gradient(120deg,#2b2b2b 0%,#3a3a3a 55%,#4a3a30 100%);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:var(--hero-img,none);background-size:cover;background-position:center;
  opacity:.28;transform:scale(1.04);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:4px;
  background:linear-gradient(90deg,var(--orange),transparent 60%);
}
.page-hero .container{position:relative;z-index:2}
.page-hero .eyebrow{color:var(--orange-l)}
.page-hero h1{font-size:38px;line-height:1.3;font-weight:700;letter-spacing:1px}
.page-hero p{margin-top:14px;max-width:760px;color:rgba(255,255,255,.78);font-size:15px;line-height:1.9}
.crumb{margin-top:22px;font-size:13px;color:rgba(255,255,255,.6);display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.crumb a:hover{color:var(--orange-l)}
.crumb span{opacity:.45}

/* ---------- 通用内页区块 ---------- */
.inner{padding:84px 0}
.inner.grey{background:var(--grey-0)}
.inner .section-head{margin-bottom:40px}
.prose{font-size:15px;line-height:2;color:var(--grey-7)}
.prose p{margin-bottom:16px}
.prose h2{font-size:24px;color:var(--grey-9);margin:30px 0 14px;font-weight:700}
.prose h3{font-size:19px;color:var(--grey-9);margin:26px 0 12px;font-weight:600}
.prose ul{list-style:disc;padding-left:22px;margin-bottom:16px}
.prose ol{list-style:decimal;padding-left:22px;margin-bottom:16px}
.prose li{margin-bottom:8px}
.prose img{border-radius:var(--radius);margin:18px 0}
.prose table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px}
.prose th,.prose td{border:1px solid var(--grey-2);padding:10px 14px;text-align:left}
.prose th{background:var(--grey-0);color:var(--grey-9);font-weight:600}
.prose blockquote{border-left:3px solid var(--orange);background:var(--grey-0);padding:14px 18px;color:var(--grey-6);margin:18px 0}

/* ---------- 关于我们 ---------- */
.about-intro{display:grid;grid-template-columns:1fr 1.15fr;gap:52px;align-items:center}
.about-intro .visual{position:relative}
.about-intro .visual img{width:100%;height:420px;object-fit:cover;border-radius:var(--radius)}
.about-intro .visual .badge{
  position:absolute;left:-22px;bottom:26px;background:var(--orange);color:#fff;
  padding:16px 22px;border-radius:var(--radius);box-shadow:var(--shadow);
}
.about-intro .visual .badge b{display:block;font-size:22px;letter-spacing:.5px}
.about-intro .visual .badge span{font-size:12.5px;opacity:.9}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:48px}
.value-card{background:#fff;border:1px solid var(--grey-1);border-radius:var(--radius);padding:30px 26px;transition:.3s}
.value-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:transparent}
.value-card i{font-size:26px;color:var(--orange)}
.value-card h4{font-size:17px;color:var(--grey-9);margin:14px 0 8px;font-weight:600}
.value-card p{font-size:13.5px;color:var(--grey-5);line-height:1.85}
.milestones{margin-top:0}
.milestone{display:flex;gap:26px;padding:22px 0;border-bottom:1px dashed var(--grey-2)}
.milestone:last-child{border-bottom:0}
.milestone b{flex:0 0 86px;font-size:24px;color:var(--orange);font-weight:700;line-height:1.3}
.milestone div h4{font-size:16px;color:var(--grey-9);font-weight:600;margin-bottom:6px}
.milestone div p{font-size:13.5px;color:var(--grey-5)}
.cert-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:36px}
.cert-item{background:#fff;border:1px solid var(--grey-1);border-radius:var(--radius);overflow:hidden}
.cert-item img{width:100%;height:260px;object-fit:cover}
.cert-item span{display:block;padding:14px;font-size:13.5px;color:var(--grey-6);text-align:center;border-top:1px solid var(--grey-1)}

/* ---------- 产品中心 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px}
.filter-bar a{
  padding:9px 20px;border:1px solid var(--grey-2);border-radius:30px;font-size:13.5px;color:var(--grey-6);transition:.25s;
}
.filter-bar a:hover{border-color:var(--orange);color:var(--orange)}
.filter-bar a.on{background:var(--orange);border-color:var(--orange);color:#fff}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.product-card{background:#fff;border:1px solid var(--grey-1);border-radius:var(--radius);overflow:hidden;transition:.35s;display:flex;flex-direction:column}
.product-card:hover{box-shadow:var(--shadow);transform:translateY(-5px);border-color:transparent}
.product-card .thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--grey-0)}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.product-card:hover .thumb img{transform:scale(1.06)}
.product-card .thumb .tag{
  position:absolute;left:12px;top:12px;background:rgba(225,109,50,.92);color:#fff;
  font-size:12px;padding:4px 10px;border-radius:2px;
}
.product-card .body{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column}
.product-card h3{font-size:16.5px;color:var(--grey-9);font-weight:600;line-height:1.5;margin-bottom:8px}
.product-card p{font-size:13px;color:var(--grey-5);line-height:1.8;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.product-card .go{margin-top:14px;font-size:13px;color:var(--orange);display:inline-flex;align-items:center;gap:6px}

/* 产品详情 */
.detail-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:52px;align-items:start}
.detail-media{border:1px solid var(--grey-1);border-radius:var(--radius);overflow:hidden;background:var(--grey-0)}
.detail-media img{width:100%;height:430px;object-fit:cover}
.detail-body h1{font-size:28px;color:var(--grey-9);font-weight:700;line-height:1.4}
.detail-body .sub{color:var(--grey-4);font-size:13px;margin-top:10px;letter-spacing:1px}
.detail-body .desc{margin:18px 0 24px;font-size:14.5px;line-height:2;color:var(--grey-6)}
.spec-table{width:100%;border-collapse:collapse;font-size:14px}
.spec-table th,.spec-table td{border-bottom:1px solid var(--grey-1);padding:11px 4px;text-align:left}
.spec-table th{color:var(--grey-4);font-weight:500;width:38%}
.spec-table td{color:var(--grey-8)}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.btn-ghost{border:1px solid var(--grey-2);color:var(--grey-7)}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
.rel-title{font-size:20px;color:var(--grey-9);font-weight:700;margin-bottom:26px}

/* ---------- 文章列表 ---------- */
.post-list{display:flex;flex-direction:column;gap:26px}
.post-row{display:flex;gap:28px;background:#fff;border:1px solid var(--grey-1);border-radius:var(--radius);overflow:hidden;transition:.3s}
.post-row:hover{box-shadow:var(--shadow);border-color:transparent}
.post-row .thumb{flex:0 0 300px;overflow:hidden}
.post-row .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.post-row:hover .thumb img{transform:scale(1.05)}
.post-row .body{padding:24px 26px 24px 0;display:flex;flex-direction:column}
.post-row .meta{font-size:12.5px;color:var(--grey-4);display:flex;gap:14px;margin-bottom:10px}
.post-row h3{font-size:19px;color:var(--grey-9);font-weight:600;line-height:1.55;margin-bottom:10px}
.post-row h3 a:hover{color:var(--orange)}
.post-row p{font-size:13.5px;color:var(--grey-5);line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-row .go{margin-top:auto;padding-top:14px;font-size:13px;color:var(--orange)}
.pagination{display:flex;gap:8px;justify-content:center;margin-top:44px;flex-wrap:wrap}
.pagination a,.pagination span{
  min-width:38px;height:38px;line-height:38px;text-align:center;padding:0 10px;
  border:1px solid var(--grey-2);border-radius:var(--radius);font-size:13.5px;color:var(--grey-6);
}
.pagination a:hover{border-color:var(--orange);color:var(--orange)}
.pagination .on{background:var(--orange);border-color:var(--orange);color:#fff}

/* 文章详情 */
.article-head{text-align:center;max-width:860px;margin:0 auto 40px}
.article-head h1{font-size:32px;color:var(--grey-9);line-height:1.45;font-weight:700}
.article-head .meta{color:var(--grey-4);font-size:13px;margin-top:16px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.article-body{max-width:860px;margin:0 auto}
.article-body img{border-radius:var(--radius)}
.article-foot{max-width:860px;margin:50px auto 0;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-top:1px solid var(--grey-1);padding-top:24px;font-size:13.5px;color:var(--grey-5)}
.article-foot a:hover{color:var(--orange)}

/* ---------- 侧栏 ---------- */
.with-side{display:grid;grid-template-columns:1fr 300px;gap:44px;align-items:start}
.side-card{background:#fff;border:1px solid var(--grey-1);border-radius:var(--radius);padding:26px;margin-bottom:22px}
.side-card h4{font-size:16px;color:var(--grey-9);font-weight:600;padding-bottom:14px;border-bottom:1px solid var(--grey-1);margin-bottom:14px}
.side-card ul li{padding:9px 0;border-bottom:1px dashed var(--grey-1);font-size:13.5px}
.side-card ul li:last-child{border-bottom:0}
.side-card ul li a{display:flex;justify-content:space-between;gap:10px;color:var(--grey-6)}
.side-card ul li a:hover{color:var(--orange)}
.side-card .hot-title{font-size:13.5px;line-height:1.7;color:var(--grey-6);display:block;margin-bottom:4px}
.side-card .hot-date{font-size:12px;color:var(--grey-4)}
.side-contact{background:var(--grey-9);color:#fff;border:0;text-align:center}
.side-contact h4{color:#fff;border-color:rgba(255,255,255,.14)}
.side-contact .tel{font-size:24px;color:var(--orange-l);font-weight:700;letter-spacing:.5px;margin:10px 0 6px}
.side-contact p{font-size:12.5px;color:var(--grey-3)}

/* ---------- 服务 / 联系 ---------- */
.service-grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:12px}
.service-box{background:#fff;border:1px solid var(--grey-1);border-radius:var(--radius);padding:30px;transition:.3s}
.service-box:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.service-box .num{font-size:13px;color:var(--orange);font-weight:700;letter-spacing:2px}
.service-box h4{font-size:18px;color:var(--grey-9);font-weight:600;margin:10px 0 10px}
.service-box p{font-size:13.5px;color:var(--grey-5);line-height:1.9}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px;counter-reset:step}
.process .step{position:relative;background:#fff;border:1px solid var(--grey-1);border-radius:var(--radius);padding:26px 22px 24px}
.process .step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;right:16px;top:10px;font-size:30px;font-weight:700;color:rgba(225,109,50,.16);
}
.process .step h4{font-size:15.5px;color:var(--grey-9);font-weight:600;margin-bottom:8px}
.process .step p{font-size:13px;color:var(--grey-5);line-height:1.85}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
.contact-list li{display:flex;gap:14px;padding:18px 0;border-bottom:1px dashed var(--grey-2)}
.contact-list li i{font-size:20px;color:var(--orange);margin-top:3px}
.contact-list li b{display:block;font-size:14px;color:var(--grey-9);margin-bottom:4px}
.contact-list li span{font-size:13.5px;color:var(--grey-5);word-break:break-all}
.map-box{border:1px solid var(--grey-1);border-radius:var(--radius);overflow:hidden;height:100%;min-height:380px;background:var(--grey-0);display:flex;align-items:center;justify-content:center;color:var(--grey-4);font-size:13.5px}
.map-box img{width:100%;height:100%;object-fit:cover}

/* ---------- CTA ---------- */
.cta{background:linear-gradient(120deg,var(--orange),var(--orange-d));color:#fff;padding:56px 0}
.cta .container{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cta h2{font-size:28px;font-weight:700;letter-spacing:.5px}
.cta p{margin-top:8px;font-size:14px;color:rgba(255,255,255,.86)}
.cta .btn{background:#fff;color:var(--orange);box-shadow:none}
.cta .btn:hover{background:var(--grey-9);color:#fff}

/* ---------- 空状态 ---------- */
.empty{padding:70px 0;text-align:center;color:var(--grey-4);font-size:14px}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .with-side{grid-template-columns:1fr}
  .detail-grid,.about-intro,.contact-grid{grid-template-columns:1fr;gap:32px}
  .process{grid-template-columns:repeat(2,1fr)}
  .value-grid,.cert-row{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .page-hero{padding:52px 0 44px}
  .page-hero h1{font-size:26px}
  .inner{padding:56px 0}
  .product-grid{grid-template-columns:1fr}
  .post-row{flex-direction:column}
  .post-row .thumb{flex:none;height:200px}
  .post-row .body{padding:20px 22px 24px}
  .value-grid,.cert-row,.service-grid2,.process{grid-template-columns:1fr}
  .detail-media img{height:280px}
  .article-head h1{font-size:23px}
  .cta h2{font-size:22px}
}


/* ---------------- 视频放大播放器 ---------------- */
.vmodal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.88);
  z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: opacity .25s ease;
}
.vmodal-overlay.on { opacity: 1; visibility: visible; }
.vmodal-close {
  position: absolute; top: 24px; right: 24px;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,.12); color: #fff;
  font-size: 28px; line-height: 44px; text-align: center;
  border: 0; cursor: pointer; transition: background .2s, transform .2s;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}
.vmodal-close:hover { background: rgba(255,255,255,.24); transform: scale(1.08); }
.vmodal-inner {
  position: relative;
  width: 90vw; max-width: 1100px;
  max-height: 85vh;
  display: flex; flex-direction: column; align-items: center;
}
.vmodal-inner video {
  width: 100%; max-height: 78vh; object-fit: contain;
  background: #000; border-radius: 6px;
  box-shadow: 0 20px 60px rgba(0,0,0,.6);
}
.vmodal-title {
  color: #fff; margin-top: 16px; font-size: 15px;
  opacity: .85; letter-spacing: .5px;
}
@media (max-width: 768px) {
  .vmodal-inner { width: 96vw; }
  .vmodal-close { top: 12px; right: 12px; width: 38px; height: 38px; line-height: 38px; font-size: 24px; }
}

/* ---------- 资讯列表：整卡可点击进入详情 ---------- */
.post-row{position:relative;cursor:pointer}
.post-row .thumb::after{content:"";position:absolute;inset:0;z-index:2}
.post-row .go{text-decoration:none;display:inline-flex;align-items:center;gap:6px;transition:gap .25s}
.post-row:hover .go{gap:10px}