/* ============================================================
   内页通用样式（列表页 / 详情页 / 关于 / 联系 / 404）
   依赖 style.css 中的设计变量
   ============================================================ */

/* ============ 无障碍：跳转到主内容（键盘/读屏用户） ============ */
.skip-link{
  position:absolute;left:16px;top:-60px;z-index:200;
  padding:10px 18px;background:var(--c-primary);color:#fff;
  border-radius:0 0 10px 10px;font-size:14px;font-weight:600;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:0}

/* ============ 内页顶部横幅 ============ */
.page-banner{
  position:relative;padding:calc(var(--header-h-safe) + 72px) 0 72px;
  background:linear-gradient(135deg,#0d4cd4 0%,#1b72df 55%,#0ea5e9 100%);
  color:#fff;overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;top:0;right:0;bottom:0;left:0;opacity:.16;
  background-image:
    linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 70% 80% at 50% 0%,#000 20%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse 70% 80% at 50% 0%,#000 20%,transparent 80%);
}
.page-banner::after{
  content:"";position:absolute;right:-160px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.12) 0%,transparent 70%);
}
.page-banner .container{position:relative;z-index:1}
.page-banner h1{color:#fff;font-size:clamp(28px,3.6vw,42px);margin-bottom:14px}
.page-banner .pb-desc{color:rgba(255,255,255,.85);font-size:16px;max-width:640px;line-height:1.8}
.page-banner .eyebrow{color:#a8c8ff}
.page-banner .eyebrow::before{background:#a8c8ff}

/* ============ 面包屑（2026-09-14 起已关闭，模板不再输出 .crumb；样式保留便于恢复） ============ */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:16px 0;margin-bottom:0;font-size:13px;color:rgba(255,255,255,.75);
}
.crumb a{color:rgba(255,255,255,.8);transition:color .2s}
.crumb a:hover{color:#fff}
.crumb i{font-style:normal;opacity:.5}
.crumb span{color:#fff}

/* ============ 内页正文通用 ============ */
.page-section{padding:72px 0}
@media (max-width:768px){.page-section{padding:48px 0}}

/* ============ 产品列表 ============ */
.pl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.pl-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius-lg);transition:all .3s var(--ease);overflow:hidden;height:100%;
}
.pl-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.pl-cover{
  aspect-ratio:16/9;overflow:hidden;background:var(--c-bg-tint);
  display:flex;align-items:center;justify-content:center;position:relative;
}
.pl-cover img{width:100%;height:100%;object-fit:cover;display:block}
.pl-cover svg{width:52px;height:52px;color:var(--c-primary)}
.pl-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.pl-body h3{font-size:18px;margin:0;line-height:1.4}
.pl-card:hover .pl-body h3{color:var(--c-primary)}
@media (max-width:1100px){.pl-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:768px){.pl-grid{grid-template-columns:repeat(2,1fr);gap:18px}}
@media (max-width:480px){.pl-grid{grid-template-columns:1fr}}

/* 产品系列导航（产品中心顶部） */
.series-nav{background:#f5f7fb;border-bottom:1px solid var(--c-line)}
.series-nav-inner{display:flex;flex-wrap:wrap;gap:10px 26px;padding:14px 0}
.series-nav-inner a{color:#475569;font-size:14px;font-weight:500;white-space:nowrap}
.series-nav-inner a:hover{color:var(--c-primary)}
.series-block{padding:46px 0;border-top:1px solid var(--c-line)}
.series-block:first-of-type{border-top:none}
.series-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.series-title{display:flex;align-items:center;gap:10px}
.series-title svg{width:26px;height:26px;color:var(--c-primary)}
.series-head h2{font-size:22px;margin:0}
.series-more{color:var(--c-primary);font-size:14px;font-weight:600;white-space:nowrap}
.series-more:hover{text-decoration:underline}
.pl-sum{font-size:13px;line-height:1.7;color:var(--c-text-3);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pl-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:4px}
.pl-tags span{font-size:11px;padding:4px 10px;background:var(--c-bg-tint);color:var(--c-primary);border-radius:999px;font-weight:500}

/* ============ 产品 / 方案 详情 ============ */
.pd-hero{padding:calc(var(--header-h-safe) + 40px) 0 56px;background:var(--grad-blue-soft);border-bottom:1px solid var(--c-line)}
.pd-hero .container{display:grid;grid-template-columns:1.1fr 1.4fr;gap:48px;align-items:center}
.pd-hero h1{font-size:clamp(28px,3.6vw,42px);margin:12px 0 16px}
.pd-hero .pd-sum{font-size:17px;line-height:1.8;color:var(--c-text-2);margin-bottom:28px}
.pd-visual{
  aspect-ratio:4/3;border-radius:24px;background:var(--grad-blue);
  display:flex;align-items:center;justify-content:center;color:#fff;position:relative;overflow:hidden;
}
.pd-visual::before{
  content:"";position:absolute;top:0;right:0;bottom:0;left:0;opacity:.25;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:36px 36px;
}
.pd-visual svg{width:44%;height:auto;position:relative;z-index:1}
/* 产品图模式：有图时图片铺满整个视觉区，替换默认蓝色图标 */
.pd-visual.has-img img{
  position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover;
  z-index:1;border-radius:inherit;
}
.pd-visual.has-img::before{opacity:.08}
@media (max-width:960px){
  .pd-hero .container{grid-template-columns:1fr;text-align:center;gap:32px}
  .pd-visual{max-width:260px;margin:0 auto;order:-1}
}
.pd-body{padding:64px 0}
.pd-cols{display:grid;grid-template-columns:1fr 340px;gap:48px;align-items:start}
.pd-block{margin-bottom:44px}
.pd-block h2{font-size:24px;margin-bottom:18px;padding-left:14px;border-left:4px solid var(--c-primary)}
.pd-block p{font-size:15px;line-height:1.9;color:var(--c-text-2);margin-bottom:14px}
.pd-block ul{padding-left:20px;margin:0}
.pd-block li{font-size:15px;line-height:1.9;color:var(--c-text-2);margin-bottom:6px}

/* 富文本详情（TinyMCE 生成），视觉上与原有分段保持一致 */
.pd-rich{margin-bottom:44px}
.pd-rich h2{font-size:24px;margin:0 0 18px;padding-left:14px;border-left:4px solid var(--c-primary)}
.pd-rich h3{font-size:20px;margin:28px 0 14px}
.pd-rich p{font-size:15px;line-height:1.9;color:var(--c-text-2);margin:0 0 14px}
.pd-rich ul,.pd-rich ol{padding-left:22px;margin:0 0 14px}
.pd-rich li{font-size:15px;line-height:1.9;color:var(--c-text-2);margin-bottom:6px}
.pd-rich img{max-width:100%;height:auto;border-radius:10px;margin:8px 0}
.pd-rich a{color:var(--c-primary);text-decoration:underline}
.pd-rich blockquote{margin:16px 0;padding:12px 18px;border-left:4px solid var(--c-primary);background:var(--c-bg-soft);color:var(--c-text-3);border-radius:0 8px 8px 0}
.pd-rich table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px}
.pd-rich th,.pd-rich td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.pd-rich th{background:var(--c-bg-soft);font-weight:600}
.pd-rich hr{border:none;border-top:1px solid var(--c-line);margin:24px 0}
.pd-feat-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pd-feat{
  padding:22px;background:var(--c-bg-soft);border-radius:var(--radius);
  border:1px solid var(--c-line);transition:all .3s var(--ease);
}
.pd-feat:hover{background:#fff;box-shadow:var(--shadow-md);transform:translateY(-3px)}
.pd-feat b{display:block;font-size:15px;margin-bottom:6px}
.pd-feat span{font-size:13px;color:var(--c-text-3);line-height:1.7}
.pd-side{position:sticky;top:calc(var(--header-h) + 24px);display:flex;flex-direction:column;gap:16px}
.pd-card{
  padding:28px 24px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);
}
.pd-card h4{font-size:17px;margin-bottom:16px}
.pd-card p{font-size:14px;color:var(--c-text-3);line-height:1.7;margin-bottom:18px}
.pd-cta-box{
  padding:28px 24px;border-radius:var(--radius-lg);background:var(--grad-blue);color:#fff;text-align:center;
}
.pd-cta-box h4{color:#fff;font-size:18px;margin-bottom:8px}
.pd-cta-box p{color:rgba(255,255,255,.85);font-size:14px;margin-bottom:18px}
@media (max-width:960px){
  .pd-cols{grid-template-columns:1fr;gap:32px}
  .pd-side{position:static}
  .pd-feat-grid{grid-template-columns:1fr}
}

/* ============ 方案列表 ============ */
.sl-list{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.sl-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius-lg);transition:all .3s var(--ease);overflow:hidden;height:100%;
}
.sl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.sl-cover{
  aspect-ratio:16/9;overflow:hidden;background:var(--c-bg-tint);
  display:flex;align-items:center;justify-content:center;position:relative;
}
.sl-cover img{width:100%;height:100%;object-fit:cover;display:block}
.sl-cover svg{width:52px;height:52px;color:var(--c-primary)}
.sl-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.sl-body h3{font-size:18px;margin:0;line-height:1.4}
.sl-card:hover .sl-body h3{color:var(--c-primary)}
.sl-body p, .sl-body .sl-summary{
  font-size:13px;line-height:1.7;color:var(--c-text-3);margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;line-clamp:3;
}
/* 兜底：极老浏览器（连 line-clamp 都不支持）时用 max-height 硬裁到 3 行，避免卡片被撑高 */
@supports not ((-webkit-line-clamp:3) or (line-clamp:3)){
  .sl-body p, .sl-body .sl-summary{display:block;max-height:calc(1.7em * 3);overflow:hidden}
}
.sl-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:4px}
.sl-tags span{
  font-size:11px;padding:4px 10px;background:var(--c-bg-tint);
  color:var(--c-primary);border-radius:999px;font-weight:500;
}
@media (max-width:1100px){.sl-list{grid-template-columns:repeat(3,1fr)}}
@media (max-width:768px){.sl-list{grid-template-columns:repeat(2,1fr);gap:18px}}
@media (max-width:480px){.sl-list{grid-template-columns:1fr}}

/* ============ 方案详情：概述（减少两侧空白） ============ */
.sl-overview{
  display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:start;
}
.sl-overview-text p{
  font-size:16px;line-height:1.9;color:var(--c-text-2);margin:0 0 16px;
}
.sl-overview-card{
  position:sticky;top:calc(var(--header-h) + 40px);
  padding:32px;background:var(--c-bg-soft);border:1px solid var(--c-line);
  border-radius:var(--radius-lg);text-align:center;
}
.sl-overview-icon{
  width:96px;height:96px;border-radius:24px;background:#fff;
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;
  box-shadow:0 8px 24px rgba(13,76,212,.1);color:var(--c-primary);
}
.sl-overview-icon svg{width:52px;height:52px}
.sl-overview-card h4{font-size:20px;margin-bottom:14px}
.sl-overview-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:20px}
.sl-overview-tags span{
  font-size:12px;padding:5px 12px;background:#fff;color:var(--c-primary);
  border-radius:999px;font-weight:500;
}

/* ============ 方案详情：关键业务场景（4 列 / 2 列） ============ */
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.scene-item{
  padding:28px 24px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius);transition:all .3s var(--ease);
}
.scene-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(27,114,223,.2)}
.scene-icon{
  width:56px;height:56px;border-radius:14px;background:var(--grad-blue-soft);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.scene-icon svg{width:28px;height:28px}
.scene-item h4{font-size:18px;margin-bottom:8px}
.scene-item p{font-size:14px;line-height:1.7;color:var(--c-text-3)}
@media (max-width:1100px){.scene-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.scene-grid{grid-template-columns:1fr}}

/* ============ 方案详情：业务收益（方块更大、减少空白） ============ */
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.value-item{
  padding:36px 28px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius);transition:all .3s var(--ease);
}
.value-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(27,114,223,.2)}
.value-check{
  width:48px;height:48px;border-radius:12px;background:var(--grad-blue);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;margin-bottom:18px;
}
.value-item h4{font-size:19px;margin-bottom:10px}
.value-item p{font-size:14px;line-height:1.7;color:var(--c-text-3)}
@media (max-width:1100px){.value-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.value-grid{grid-template-columns:1fr}}

/* ============ 方案详情：实施流程（方块更大、减少空白） ============ */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.process-item{
  padding:36px 28px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius);transition:all .3s var(--ease);text-align:center;
}
.process-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(27,114,223,.2)}
.process-num{
  font-size:38px;font-weight:800;color:transparent;
  -webkit-text-stroke:1.5px var(--c-primary);line-height:1;margin-bottom:14px;
  font-family:-apple-system,sans-serif;
}
.process-item h4{font-size:18px;margin:0}
@media (max-width:1100px){.process-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.process-grid{grid-template-columns:1fr}}

/* ============ 新闻列表 ============ */
.nl-list{display:flex;flex-direction:column;gap:0}
.nl-item{
  display:block;
  padding:28px 0;border-bottom:1px solid var(--c-line);transition:all .25s var(--ease);
}
.nl-item:first-child{border-top:1px solid var(--c-line)}
.nl-item:hover{background:var(--c-bg-soft);padding-left:16px;padding-right:16px;border-radius:var(--radius)}
.nl-body h3{font-size:19px;margin-bottom:8px;line-height:1.5}
.nl-item:hover .nl-body h3{color:var(--c-primary)}
.nl-body p{
  font-size:14px;color:var(--c-text-3);line-height:1.7;margin-bottom:8px;
  display:-webkit-box;display:-moz-box;display:box;
  -webkit-line-clamp:2;line-clamp:2;
  -webkit-box-orient:vertical;box-orient:vertical;
  overflow:hidden;
}
.nl-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--c-text-3)}
.nl-meta em{
  font-style:normal;padding:2px 10px;background:var(--c-bg-tint);
  color:var(--c-primary);border-radius:999px;font-weight:600;
}

/* ============ 新闻详情 ============ */
.nd-wrap{max-width:800px;margin:0 auto}
.nd-title{font-size:clamp(26px,3.4vw,38px);line-height:1.4;margin:16px 0 20px}
.nd-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:13px;color:var(--c-text-3);
  padding:16px 0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);margin-bottom:36px;
}
.nd-meta em{font-style:normal;padding:2px 10px;background:var(--c-bg-tint);color:var(--c-primary);border-radius:999px;font-weight:600}
.nd-content{font-size:16px;line-height:2;color:var(--c-text-2)}
.nd-content p{margin-bottom:20px;font-size:16px;line-height:2}
.nd-content h2{font-size:24px;margin:36px 0 16px}
.nd-content h3{font-size:20px;margin:28px 0 12px}
.nd-content ul{padding-left:22px;margin-bottom:20px}
.nd-content li{margin-bottom:8px}
.nd-content img{max-width:100%;height:auto;display:block;margin:24px auto;border-radius:var(--radius-lg);box-shadow:var(--shadow-md)}
.nd-content blockquote{
  margin:28px 0;padding:18px 24px;background:var(--c-bg-soft);
  border-left:4px solid var(--c-primary);border-radius:0 var(--radius) var(--radius) 0;
  color:var(--c-text-2);
}
.nd-share{
  display:flex;align-items:center;gap:12px;margin-top:48px;padding-top:28px;
  border-top:1px solid var(--c-line);font-size:14px;color:var(--c-text-3);
}
.nd-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:48px}
.nd-nav a{
  padding:20px 24px;background:var(--c-bg-soft);border-radius:var(--radius);
  transition:all .25s var(--ease);
}
.nd-nav a:hover{background:#fff;box-shadow:var(--shadow-md)}
.nd-nav span{display:block;font-size:12px;color:var(--c-text-3);margin-bottom:6px}
.nd-nav b{font-size:15px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
@media (max-width:768px){.nd-nav{grid-template-columns:1fr}}

/* ============ 关于我们 ============ */
.ad-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:56px;align-items:center}
.ad-text h2{font-size:30px;margin-bottom:20px}
.ad-text p{font-size:16px;line-height:1.9;margin-bottom:16px}
.ad-visual{
  aspect-ratio:4/3;border-radius:24px;background:var(--c-bg-soft);position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
}
.ad-visual img{width:100%;height:100%;object-fit:cover;border-radius:24px}
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:var(--c-line)}
.tl-item{position:relative;padding-bottom:32px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:8px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--c-primary);
}
.tl-year{font-size:15px;font-weight:700;color:var(--c-primary);margin-bottom:6px}
.tl-item h4{font-size:17px;margin-bottom:6px}
.tl-item p{font-size:14px;line-height:1.8}
.culture-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cul-card{
  padding:32px 24px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius);text-align:center;transition:all .3s var(--ease);
}
.cul-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent}
.cul-ico{
  width:52px;height:52px;margin:0 auto 16px;border-radius:14px;background:var(--grad-blue-soft);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;
}
.cul-ico svg{width:28px;height:28px}
.cul-card h4{font-size:17px;margin-bottom:8px}
.cul-card p{font-size:13px;line-height:1.7;color:var(--c-text-3)}
@media (max-width:960px){.culture-grid{grid-template-columns:1fr 1fr}}

/* ============ 联系我们 ============ */
.c-head{text-align:left;max-width:none;margin-bottom:40px}
.c-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.c-info{display:flex;flex-direction:column;gap:20px}
.c-card{
  display:flex;gap:18px;padding:24px;background:#fff;
  border-radius:var(--radius);border:1px solid var(--c-line);transition:all .3s var(--ease);
}
.c-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:transparent}
.c-ico{
  width:48px;height:48px;flex-shrink:0;border-radius:12px;background:var(--grad-blue);
  color:#fff;display:flex;align-items:center;justify-content:center;
}
.c-ico svg{width:24px;height:24px}
.c-card h4{font-size:16px;margin-bottom:4px}
.c-card p{font-size:14px;color:var(--c-text-3);line-height:1.7}
form{
  padding:36px 32px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-md);
}
form h3{font-size:20px;margin-bottom:6px}
form>.sub{font-size:14px;color:var(--c-text-3);margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label{font-size:13px;font-weight:600;color:var(--c-text-2)}
.field label i{color:#e5484d;font-style:normal;margin-left:2px}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:14px;color:var(--c-text);
  padding:11px 14px;border:1px solid var(--c-line);border-radius:10px;
  background:var(--c-bg-soft);transition:all .2s;outline:none;width:100%;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(27,114,223,.12);
}
.field textarea{resize:vertical;min-height:100px}
form .btn{width:100%;justify-content:center;min-height:48px;border:0;font-size:15px}
.form-tip{font-size:12px;color:var(--c-text-3);margin-top:12px;text-align:center;line-height:1.6}
.form-msg{
  display:none;margin-top:14px;padding:12px 16px;border-radius:10px;font-size:14px;text-align:center;
}
.form-msg.ok{display:block;background:#e7f6ed;color:#1a7f4b}
.form-msg.err{display:block;background:#fdecec;color:#c0392b}
.c-map{
  margin-top:48px;aspect-ratio:21/9;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--c-line);background:var(--c-bg-soft);position:relative;
  display:flex;align-items:center;justify-content:center;
}
.c-map img{width:100%;height:100%;object-fit:cover}
@media (max-width:768px){.c-map{margin-top:32px;aspect-ratio:4/3}}
@media (max-width:480px){.c-map{aspect-ratio:1/1}}

/* ============ 404 ============ */
.nf{
  min-height:70vh;display:flex;align-items:center;justify-content:center;text-align:center;
  padding:calc(var(--header-h) + 60px) 24px 80px;
}
.nf h1{font-size:clamp(72px,14vw,140px);line-height:1;background:var(--grad-blue);
  -webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:16px}
.nf h2{font-size:24px;margin-bottom:12px}
.nf p{font-size:15px;margin-bottom:28px}
.nf-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.nf-links{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;margin-top:32px;font-size:14px}
.nf-links a{color:var(--c-primary);font-weight:500}
.nf-links a:hover{text-decoration:underline}

/* ============ 栅格变体 ============ */
/* 注意：必须写成 class 而不是行内 style —— 行内样式优先级高于媒体查询，
   会导致移动端断点失效。 */
.tech-grid.four{grid-template-columns:repeat(4,1fr)}
.news-grid.two{grid-template-columns:repeat(2,1fr);grid-template-rows:auto}
.ad-grid.text-left{grid-template-columns:1fr 1.1fr}
/* 规格参数恒为单列（键值对左对齐更好扫读），故用 .one 提权覆盖 .pd-feat-grid 的 1fr 1fr */
.pd-feat-grid.one{grid-template-columns:1fr}
/* 注意：.tech-grid 的平板断点必须写在 style.css 里（紧挨其 768px 单列规则之前）。
   若写在本文件，同特异性 + page.css 靠后会在 ≤768px 时反向胜出，导致手机上仍是两列。 */
.pd-spec{display:grid;grid-template-columns:140px 1fr;gap:12px;align-items:center}
.pd-spec b{margin:0;color:var(--c-text-3);font-weight:600}
.pd-spec span{color:var(--c-text)}
@media (max-width:960px){
  .tech-grid.four{grid-template-columns:repeat(2,1fr)}
  .ad-grid.text-left{grid-template-columns:1fr;gap:36px}
}
@media (max-width:640px){
  .tech-grid.four{grid-template-columns:1fr}
  .news-grid.two{grid-template-columns:1fr}
  .pd-spec{grid-template-columns:1fr;gap:4px}
}

/* ============ 产品图画廊 ============ */
.pd-gallery-wrap{padding:8px 0 0}
.pd-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.pd-gallery-item{border-radius:var(--radius-lg);overflow:hidden;background:#fff;border:1px solid var(--c-line);box-shadow:var(--shadow-sm)}
.pd-gallery-item img{width:100%;height:200px;object-fit:cover;display:block;transition:transform .4s var(--ease)}
.pd-gallery-item:hover img{transform:scale(1.04)}

/* ============ 产品分段配图（每段下方一组图，每行最多两张） ============ */
.pd-sec-gallery{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:18px;
  margin:20px 0 6px;
}
.pd-sec-img{
  border-radius:var(--radius-lg);
  overflow:hidden;
  background:#fff;
  border:1px solid var(--c-line);
  box-shadow:var(--shadow-sm);
  transition:box-shadow .3s var(--ease);
}
.pd-sec-img:hover{box-shadow:var(--shadow-md)}
.pd-sec-img img{width:100%;height:220px;object-fit:cover;display:block;transition:transform .4s var(--ease)}
.pd-sec-img:hover img{transform:scale(1.04)}

/* ============ 客户案例列表 ============ */
.cl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:28px}
.cl-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius-lg);overflow:hidden;transition:all .3s var(--ease);
}
.cl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.cl-cover{aspect-ratio:4/3;overflow:hidden;background:var(--grad-blue-soft)}
.cl-cover img{width:100%;height:100%;object-fit:cover;display:block}
.cl-cover--text{display:flex;align-items:center;justify-content:center;padding:24px;text-align:center;min-height:200px}
.cl-cover--text span{font-size:20px;font-weight:700;color:var(--c-primary);line-height:1.4}
.cl-body{padding:16px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.cl-body h3{font-size:18px;margin:0;line-height:1.45}
.cl-body p{
  font-size:13px;line-height:1.7;color:var(--c-text-3);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}

/* ============ 移动端微调 ============ */
@media (max-width:768px){
  .page-banner{padding:calc(var(--header-h-safe) + 44px) 0 44px}
  .page-banner h1{font-size:26px}
  .page-banner .pb-desc{font-size:15px}
  .pd-hero{padding:calc(var(--header-h-safe) + 28px) 0 36px}
  .pd-body{padding:40px 0}
  .nl-body h3{font-size:17px}
  .ad-grid{gap:32px}
  .pd-gallery{grid-template-columns:1fr}
  .pd-sec-gallery{grid-template-columns:1fr}
  .cl-grid{grid-template-columns:1fr}
  .cl-cover--text span{font-size:18px}
  .sl-overview{grid-template-columns:1fr;gap:32px}
  .sl-overview-card{position:static}
}

/* ============ 老内核兜底：不支持 aspect-ratio 的等比封面 ============
   说明同 style.css。4/3 → 75%，16/9 → 56.25%，21/9 → 42.86%。
   .cl-cover--text 是无封面时的纯文字块，用 :not() 排除，避免被压到底部。 */
@supports not (aspect-ratio:1/1){
  .pl-cover{display:block;height:0;padding-top:56.25%}
  .cl-cover:not(.cl-cover--text),.ad-visual,.pd-visual{display:block;height:0;padding-top:75%}
  .sl-cover{display:block;height:0;padding-top:56.25%}
  .c-map{display:block;height:0;padding-top:42.86%}
  @media (max-width:768px){.c-map{padding-top:75%}}
  @media (max-width:480px){.c-map{padding-top:100%}}
  .pl-cover img,.cl-cover:not(.cl-cover--text) img,.ad-visual img,.c-map img{
    position:absolute;top:0;left:0;width:100%;height:100%;
  }
  .pl-cover svg,.sl-cover svg{
    position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  }
  /* 产品详情视觉区：图标居中，图片铺满 */
  .pd-visual svg{position:absolute;top:50%;left:50%;width:44%;height:auto;transform:translate(-50%,-50%)}
  .pd-visual.has-img img{top:0;right:0;bottom:0;left:0}
}