/* 内江正鹏数据科技有限公司 官网 | 分组卡片模板视觉 */
:root{
  --blue:#1069ab;
  --blue-deep:#0b4f83;
  --blue-soft:#eaf3fb;
  --green:#4fad78;
  --ink:#1f2a37;
  --ink-2:#3d4c5d;
  --muted:#6b7a8c;
  --line:#e6ecf3;
  --soft:#f5f8fc;
  --footer:#1e2126;
  --shadow:0 2px 14px rgba(16,105,171,.075);
  --shadow-hover:0 10px 30px rgba(16,105,171,.14);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  margin:0;background:#fff;color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",Arial,sans-serif;
  font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5,p,dl,dd,ul{margin:0}
ul{padding:0;list-style:none}
img{max-width:100%;display:block}
svg{display:block}
.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}
.icon{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none}
.wrap{width:70%;max-width:1200px;margin:0 auto}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(248,250,252,.96);
  border-bottom:1px solid var(--line);backdrop-filter:blur(10px);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,105,171,.09)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-mark{width:38px;height:38px;color:var(--blue);flex:none}
.brand-mark svg{width:100%;height:100%}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16.5px;font-weight:700;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
.brand-text em{font-style:normal;font-size:9px;letter-spacing:.13em;color:#93a4b5;margin-top:3px;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;flex-wrap:nowrap}
.main-nav a{
  font-size:13.5px;color:var(--ink-2);padding:8px 13px;border-radius:999px;
  white-space:nowrap;transition:background .2s ease,color .2s ease;
}
.main-nav a:hover{color:var(--blue);background:var(--blue-soft)}
.main-nav a.active{background:var(--blue);color:#fff;font-weight:600;box-shadow:0 4px 12px rgba(16,105,171,.24)}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:12px;align-items:center;justify-content:center;color:var(--blue);cursor:pointer}
.nav-toggle .icon{width:22px;height:22px}

/* ============ 首屏概览 ============ */
.intro{
  background:
    radial-gradient(900px 420px at 88% 8%,rgba(16,105,171,.07),transparent 70%),
    linear-gradient(180deg,#fbfdff,#fff 78%);
  border-bottom:1px solid var(--line);
}
.intro-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:66px 0 46px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:13px;color:var(--blue);font-weight:600;letter-spacing:.04em}
.eyebrow i{width:20px;height:2px;background:var(--blue);border-radius:2px}
.intro h1{font-size:36px;line-height:1.35;font-weight:700;letter-spacing:-.015em;margin-top:18px;color:var(--ink)}
.intro-sub{font-size:17px;color:var(--blue);font-weight:600;margin-top:10px;letter-spacing:.03em}
.intro-desc{font-size:15px;color:var(--muted);line-height:1.9;margin-top:18px;max-width:560px}
.pill-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.intro-domain{display:flex;align-items:center;gap:9px;margin-top:26px;font-size:13px;color:var(--muted)}
.intro-domain .icon{width:16px;height:16px;color:var(--blue)}
.intro-domain strong{color:var(--ink-2);font-weight:600;letter-spacing:.02em}

/* 首屏拓扑图（浅色版） */
.intro-visual{padding:10px}
.topo{width:100%;height:auto}
.topo-links{stroke:#b9d7ef;stroke-width:1.5}
.topo-node rect{fill:#f2f8fd;stroke:#c9dff1;stroke-width:1.2}
.topo-node text{fill:#3d5b78;font-size:12px;text-anchor:middle;font-family:inherit}
.topo-hub .hub-ring{fill:#e8f3fb;stroke:#bcdcf3;stroke-width:1.2}
.topo-hub .hub-core{fill:#1069ab;fill-opacity:.1;stroke:#1069ab;stroke-opacity:.45;stroke-width:1.4}
.topo-hub .hub-title{fill:#0b4f83;font-size:16px;font-weight:700;text-anchor:middle;font-family:inherit}
.topo-hub .hub-sub{fill:#5b7893;font-size:10.5px;text-anchor:middle;font-family:inherit}
.topo-caption text{fill:#8ba0b5;font-size:11px;font-family:inherit;letter-spacing:.08em}

.intro-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;padding-bottom:64px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px 24px;
  box-shadow:var(--shadow);display:flex;flex-direction:column;gap:5px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.stat-ic{width:38px;height:38px;border-radius:11px;background:var(--blue-soft);color:var(--blue);display:flex;align-items:center;justify-content:center;margin-bottom:8px}
.stat-ic .icon{width:21px;height:21px}
.stat-card strong{font-size:30px;font-weight:700;color:var(--blue);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-card strong em{font-style:normal;font-size:16px;margin-left:3px;font-weight:600}
.stat-card > span:last-child{font-size:13px;color:var(--muted)}

/* ============ 分组通用 ============ */
.group{padding:66px 0 70px}
.group--soft{background:var(--soft)}
.group--contact{
  background-image:linear-gradient(180deg,rgba(245,248,252,.95),rgba(245,248,252,.97)),url("images/scene-city.webp");
  background-size:cover;background-position:center;
}
.group-head{margin-bottom:34px;position:relative;padding-left:20px}
.group-head::before{content:"";position:absolute;left:0;top:5px;width:5px;height:26px;border-radius:4px;background:var(--blue)}
.group-kicker{display:block;font-size:12px;font-weight:700;letter-spacing:.13em;color:var(--blue);margin-bottom:7px}
.group-head h2{font-size:27px;font-weight:700;line-height:1.4;color:var(--ink);letter-spacing:-.01em}
.group-head p{font-size:14.5px;color:var(--muted);margin-top:8px;max-width:780px}
.sub-head{margin:44px 0 20px;padding-left:16px;border-left:3px solid #bcd8ee}
.sub-head h3{font-size:20px;font-weight:700;color:var(--ink)}
.sub-head p{font-size:13.5px;color:var(--muted);margin-top:4px}

.card-grid{display:grid;gap:26px;align-items:stretch}
.card-grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card-grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card-grid--4{grid-template-columns:repeat(4,minmax(0,1fr))}

/* ============ 参考模板核心：大圆角卡片 ============ */
.tpl-card{
  background:#fff;border:1px solid #edf1f6;border-radius:28px;
  box-shadow:var(--shadow);padding:26px 26px 24px;
  display:flex;flex-direction:column;min-width:0;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.tpl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#d8e7f4}
.tpl-card--wide{grid-column:1 / -1;padding:0;overflow:hidden;flex-direction:row;align-items:stretch}
.tpl-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.tpl-head h3{font-size:19px;font-weight:700;color:var(--ink);line-height:1.4}
.tpl-ic{
  width:34px;height:34px;flex:none;border-radius:9px;border:1px solid #9cc4e4;
  background:#f4f9fe;color:var(--blue);display:flex;align-items:center;justify-content:center;
}
.tpl-ic .icon{width:20px;height:20px}
.tpl-meta{display:flex;flex-direction:column;gap:2px;font-size:12.5px;color:var(--muted);margin-bottom:14px;min-height:40px}
.tpl-meta span{position:relative;padding-left:13px}
.tpl-meta span::before{content:"";position:absolute;left:2px;top:9px;width:4px;height:4px;border-radius:50%;background:#a9c9e3}
.tpl-card p{font-size:14px;color:var(--ink-2);line-height:1.85;margin-bottom:12px}
.tpl-card p.tpl-lead{font-size:15px;color:var(--ink);font-weight:600}
.tpl-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:auto;padding-top:16px}

/* 胶囊按钮（参考模板） */
.pill{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:8px 20px;border-radius:999px;font-size:13.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.pill .icon{width:14px;height:14px}
.pill-primary{background:var(--blue);color:#fff;box-shadow:0 4px 12px rgba(16,105,171,.2)}
.pill-primary:hover{background:var(--blue-deep);transform:translateY(-2px);box-shadow:0 7px 18px rgba(16,105,171,.3)}
.pill-outline{border-color:var(--green);color:var(--green);background:#fff}
.pill-outline:hover{background:#eff9f3;transform:translateY(-2px)}

/* 标签与勾选列表 */
.tag-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}
.tag-row span{
  display:inline-flex;align-items:center;gap:5px;font-size:12.5px;color:var(--blue);
  background:var(--blue-soft);border-radius:999px;padding:5px 13px;
}
.tag-row .icon{width:13px;height:13px}
.tick-list{display:flex;flex-direction:column;gap:9px;margin:4px 0 6px}
.tick-list li{display:flex;align-items:flex-start;gap:8px;font-size:13.5px;color:var(--ink-2);line-height:1.6}
.tick-list .icon{width:15px;height:15px;color:var(--green);margin-top:4px}
.tick-list--two{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px 14px}

/* ============ 关于我们 ============ */
.info-list{display:flex;flex-direction:column;margin:2px 0 6px}
.info-list > div{display:grid;grid-template-columns:110px 1fr;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:13.5px}
.info-list > div:last-child{border-bottom:0}
.info-list dt{color:var(--muted)}
.info-list dd{color:var(--ink);font-weight:600;word-break:break-word}
.figure-media{width:56%;flex:none;position:relative;overflow:hidden}
.figure-media img{width:100%;height:100%;object-fit:cover;min-height:230px}
.figure-body{padding:30px 30px 28px;display:flex;flex-direction:column;justify-content:center;flex:1}
.figure-body .tpl-head{margin-bottom:8px}
.figure-body p{margin-bottom:0}
.tpl-card--figure .tpl-head h3{font-size:20px}

/* ============ 行业洞察 ============ */
.market-num{font-size:34px;font-weight:700;color:var(--blue);line-height:1.2;font-variant-numeric:tabular-nums;margin:2px 0 12px}
.market-num em{font-style:normal;font-size:16px;font-weight:600;margin-left:4px}
.meter{height:7px;border-radius:99px;background:#eaf1f8;overflow:hidden;margin:6px 0 12px}
.meter i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,#4b9bdd,var(--blue))}
.meter-label{font-size:12px;color:var(--muted)}
.source-note{font-size:12.5px;color:#8b9aab;margin-top:18px;padding-left:14px;border-left:2px solid #dce8f3}
.mini-card p{margin-bottom:10px}
.adv-num{font-size:29px;font-weight:700;color:var(--blue);line-height:1.25;font-variant-numeric:tabular-nums;margin:0 0 10px}
.adv-num em{font-style:normal;font-size:14px;font-weight:600;margin-left:5px;color:var(--muted)}
.callout{
  display:flex;align-items:center;gap:20px;margin-top:34px;padding:24px 28px;
  background:linear-gradient(100deg,#eaf3fb,#f6fbff);border:1px solid #d8e9f7;border-radius:24px;
}
.callout-ic{width:50px;height:50px;flex:none;border-radius:15px;background:#fff;color:var(--blue);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}
.callout-ic .icon{width:26px;height:26px}
.callout > div{flex:1;min-width:0}
.callout-tag{font-size:11px;font-weight:700;letter-spacing:.12em;color:var(--blue)}
.callout h4{font-size:17px;font-weight:700;color:var(--ink);margin:3px 0 5px}
.callout p{font-size:13.5px;color:var(--ink-2);line-height:1.75}
.callout .pill{flex:none}

/* ============ 带图卡片 ============ */
.card-media{position:relative;border-radius:18px;overflow:hidden;margin-bottom:18px;aspect-ratio:16/9;background:#e9f1f8}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.tpl-card:hover .card-media img{transform:scale(1.05)}
.media-ic{
  position:absolute;left:14px;bottom:14px;width:38px;height:38px;border-radius:11px;
  background:#fff;color:var(--blue);display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px rgba(0,0,0,.16);
}
.media-ic .icon{width:21px;height:21px}
.pic-card--featured{background:linear-gradient(180deg,#f3f9ff,#fff 42%);border-color:#c6e0f3}
.pic-card--featured .tpl-ic{background:#fff}
.scene-card .tpl-head{margin-bottom:8px}
.scene-card .tpl-head h3{font-size:18px}
.scene-card p{font-size:13.5px;margin-bottom:4px}
.scene-card--more{background:linear-gradient(180deg,#f0f8ff,#fff 55%)}
.solution-foot{
  display:flex;align-items:center;justify-content:center;gap:9px;margin-top:30px;
  padding:16px;border:1px dashed #c9dff1;border-radius:18px;color:var(--blue);font-size:14px;font-weight:600;background:#f8fcff;
}
.solution-foot .icon{width:17px;height:17px}

/* ============ 核心架构 ============ */
.arch-flow{display:flex;flex-direction:column;align-items:center;gap:0}
.arch-layer{
  width:100%;background:#fff;border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);
  padding:24px 28px;display:flex;align-items:center;gap:30px;
}
.arch-layer--hub{background:linear-gradient(100deg,#eaf3fb,#f5faff);border-color:#bcdcf3}
.arch-label{width:150px;flex:none;display:flex;flex-direction:column;gap:2px;border-right:1px solid var(--line);padding-right:20px}
.arch-label span{font-size:17px;font-weight:700;color:var(--ink)}
.arch-label em{font-style:normal;font-size:10.5px;letter-spacing:.12em;color:#9aabbc}
.arch-items{display:flex;flex-wrap:wrap;gap:12px;flex:1}
.arch-item{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  background:#f5f9fd;border:1px solid #e0ecf6;font-size:13.5px;color:var(--ink-2);font-weight:600;
}
.arch-item .icon{width:17px;height:17px;color:var(--blue)}
.arch-layer--hub .arch-item{background:#fff;border-color:#cbe3f5;color:var(--blue-deep)}
.arch-arrow{display:flex;align-items:center;justify-content:center;height:34px;color:#a9cbe6}
.arch-arrow .icon{width:20px;height:20px}
.arch-note{text-align:center;font-size:13.5px;color:var(--muted);margin-top:22px}

/* ============ 合作模式 / 资质 ============ */
.qual-card .qual-nums{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:8px 0 10px}
.qual-nums div{display:flex;flex-direction:column;gap:4px;padding:16px 12px;background:var(--soft);border-radius:16px;text-align:center}
.qual-nums strong{font-size:24px;font-weight:700;color:var(--blue);font-variant-numeric:tabular-nums}
.qual-nums strong em{font-style:normal;font-size:14px;margin-left:2px}
.qual-nums span{font-size:12px;color:var(--muted)}

/* ============ 联系我们 ============ */
.contact-line{
  display:flex;align-items:center;gap:14px;padding:16px 18px;margin-bottom:12px;
  background:var(--soft);border:1px solid var(--line);border-radius:18px;
  transition:background .2s ease,border-color .2s ease;
}
.contact-line:hover{background:#eaf3fb;border-color:#c9dff1}
.contact-ic{width:40px;height:40px;flex:none;border-radius:12px;background:#fff;color:var(--blue);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}
.contact-line > span:nth-child(2){flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.contact-line em{font-style:normal;font-size:12px;color:var(--muted)}
.contact-line strong{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em;word-break:break-all}
.contact-arrow{width:18px;height:18px;color:var(--blue);flex:none}
.contact-tip{font-size:13px;color:var(--muted);margin-top:8px}
.contact-row{display:flex;gap:14px;padding:13px 0;border-bottom:1px solid var(--line)}
.contact-row:last-child{border-bottom:0}
.contact-row > .icon{width:19px;height:19px;color:var(--blue);margin-top:3px}
.contact-row div{display:flex;flex-direction:column;gap:2px;min-width:0}
.contact-row em{font-style:normal;font-size:12px;color:var(--muted)}
.contact-row strong{font-size:14px;font-weight:600;color:var(--ink);line-height:1.7;word-break:break-word}

/* ============ 页脚 ============ */
.site-footer{background:var(--footer);color:#a9b3bf}
.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;padding:52px 0 40px}
.footer-name{font-size:17px;font-weight:700;color:#fff;margin-bottom:12px}
.footer-brand p{font-size:13px;line-height:1.9;color:#8794a2}
.footer-nav,.footer-contact{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.footer-inner h5{font-size:14px;font-weight:600;color:#fff;margin-bottom:6px}
.footer-nav a,.footer-contact a,.footer-contact span{font-size:12.5px;color:#8794a2;transition:color .2s ease}
.footer-nav a:hover,.footer-contact a:hover{color:#7dbdee}
.footer-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 18px;align-content:start}
.footer-nav h5{grid-column:1 / -1}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0 26px;border-top:1px solid rgba(255,255,255,.09);font-size:12.5px;color:#7c8896}
.beian{font-size:12.5px;color:#8199b2;transition:color .2s ease}
.beian:hover{color:#8fd4e8}

.to-top{
  position:fixed;right:26px;bottom:26px;z-index:55;width:44px;height:44px;border-radius:14px;
  border:1px solid #d5e6f4;background:#fff;color:var(--blue);box-shadow:0 6px 20px rgba(16,105,171,.18);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--blue);color:#fff;border-color:var(--blue)}

/* ============ 内容呈现 ============ */
/* 模板以静态陈列为主，内容始终直接可见，避免快速跳转时被入场动画隐藏 */
.js-on .reveal,.js-on .reveal.is-visible{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .wrap{width:84%}
  .main-nav a{padding:8px 10px;font-size:13px}
  .brand-text strong{font-size:15px}
}
@media (max-width:1080px){
  .wrap{width:88%}
  .header-inner{min-height:64px}
  .nav-toggle{display:flex}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 14px 26px rgba(16,105,171,.1);padding:14px 5%;display:none;
    flex-wrap:wrap;gap:6px;
  }
  .main-nav.is-open{display:flex}
  .main-nav a{flex:1 1 auto;text-align:center;padding:9px 14px;border:1px solid var(--line);border-radius:999px}
  .main-nav a.active{border-color:var(--blue)}
  .intro-inner{grid-template-columns:1fr;gap:20px;padding:48px 0 34px}
  .intro-visual{max-width:560px;margin:0 auto}
  .intro-stats{grid-template-columns:repeat(2,1fr);padding-bottom:48px}
  .card-grid--4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .card-grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-inner{gap:28px}
}
@media (max-width:760px){
  .wrap{width:92%}
  body{font-size:14.5px}
  .brand-text strong{font-size:14px;white-space:normal;line-height:1.3}
  .brand-text em{font-size:8px;letter-spacing:.08em}
  .brand-mark{width:34px;height:34px}
  .intro h1{font-size:29px;line-height:1.4}
  .intro-sub{font-size:15px}
  .intro-desc{font-size:14px}
  .group{padding:48px 0 52px}
  .group-head h2{font-size:22px}
  .group-head p{font-size:13.5px}
  .card-grid--2,.card-grid--3,.card-grid--4{grid-template-columns:1fr}
  .tpl-card{border-radius:24px;padding:22px 20px}
  .tpl-card--wide{flex-direction:column}
  .figure-media{width:100%}
  .figure-media img{min-height:180px;max-height:220px}
  .figure-body{padding:22px 20px}
  .tpl-card--figure .tpl-head h3{font-size:18px}
  .intro-stats{gap:14px}
  .stat-card{padding:18px}
  .stat-card strong{font-size:26px}
  .tick-list--two{grid-template-columns:1fr}
  .arch-layer{flex-direction:column;align-items:flex-start;gap:16px;padding:20px}
  .arch-label{width:100%;border-right:0;border-bottom:1px solid var(--line);padding:0 0 12px;flex-direction:row;align-items:baseline;gap:10px}
  .callout{flex-direction:column;align-items:flex-start;padding:20px}
  .callout .pill{width:100%}
  .footer-inner{grid-template-columns:1fr;gap:26px;padding:38px 0 26px}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .to-top{right:16px;bottom:16px;width:40px;height:40px}
  .info-list > div{grid-template-columns:88px 1fr;gap:8px;font-size:13px}
  .contact-line strong{font-size:17px}
  .qual-nums strong{font-size:21px}
}
@media (max-width:390px){
  .brand-text strong{font-size:13px}
  .intro h1{font-size:26px}
  .intro-stats{grid-template-columns:repeat(2,1fr)}
  .stat-card strong{font-size:23px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js-on .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}