/* 山东数聚鑫联网络科技有限公司 官网前台样式 */
:root{
  --primary:#1552f0;
  --primary-dark:#0d3bb0;
  --accent:#7c3aed;
  --cyan:#06b6d4;
  --ink:#17233d;
  --muted:#5b6b8c;
  --line:#e6eaf3;
  --bg:#ffffff;
  --bg-gray:#f5f7fb;
  --radius:14px;
  --shadow:0 8px 30px rgba(23,35,61,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.center{text-align:center}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:#fff;box-shadow:0 1px 0 var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:12px}
.logo img{height:40px;width:auto;border-radius:6px}
.logo-text strong{font-size:16px;color:var(--ink)}
.main-nav{display:flex;gap:6px;align-items:center}
.main-nav > a,.nav-dropdown > a{padding:8px 16px;border-radius:8px;font-size:15px;color:#33415e;transition:.2s;display:inline-block}
.main-nav > a:hover,.nav-dropdown > a:hover{color:var(--primary);background:#eef3ff}
.main-nav > a.active,.nav-dropdown > a.active{color:#fff;background:var(--primary)}
.nav-login{color:#fff !important;background:var(--primary) !important;margin-left:6px}
.nav-login:hover{background:var(--primary-dark) !important}
.nav-dropdown{position:relative}
.dropdown-menu{position:absolute;top:110%;left:0;background:#fff;border-radius:10px;box-shadow:var(--shadow);min-width:180px;padding:8px 0;opacity:0;visibility:hidden;transform:translateY(-6px);transition:.25s;z-index:200}
.nav-dropdown:hover .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-menu a{display:block;padding:10px 18px;font-size:14px;color:#33415e;transition:.2s}
.dropdown-menu a:hover{background:#f5f7fb;color:var(--primary)}
.nav-toggle{display:none;border:none;background:none;font-size:22px;cursor:pointer;color:var(--ink)}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(135deg,#0f172a 0%,#1e3a8a 40%,#312e81 100%);color:#fff;padding:80px 0;overflow:hidden}
.hero-inner{display:flex;align-items:center;gap:60px}
.hero-text{flex:1}
.hero-text h1{font-size:42px;margin-bottom:16px;font-weight:700;line-height:1.2}
.hero-text p{font-size:18px;opacity:.9;margin-bottom:28px;max-width:560px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-img{flex:0 0 420px}
.hero-img img{width:100%;border-radius:var(--radius);box-shadow:0 20px 60px rgba(0,0,0,.25);background:#fff}

/* ---------- 首页 Banner 轮播 ---------- */
.hero-slider-wrap{position:relative}
.hero-slides-text{position:relative}
.hero-slide-text{display:none}
.hero-slide-text.on{display:block;animation:heroFade .6s ease}
.hero-slides-img{position:relative}
.hero-slide-img{display:none}
.hero-slide-img.on{display:block;animation:heroFade .6s ease}
.hero-dots{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);display:flex;gap:10px}
.hero-dots i{width:28px;height:5px;border-radius:3px;background:rgba(255,255,255,.4);cursor:pointer;transition:.3s}
.hero-dots i.on{background:#fff;width:44px}
@keyframes heroFade{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ---------- 数据指标 ---------- */
.stats-bar{background:#fff;padding:40px 0;border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stats-grid strong{display:block;font-size:32px;color:var(--primary);font-weight:700}
.stats-grid span{font-size:14px;color:var(--muted)}

/* ---------- 页面横幅 ---------- */
.page-banner{background:linear-gradient(120deg,#0d3bb0,#1552f0);color:#fff;padding:64px 0 56px;text-align:center}
.page-banner h1{font-size:34px;margin-bottom:8px}
.page-banner p{opacity:.85}
.breadcrumb{padding:18px 20px;color:var(--muted);font-size:14px}
.breadcrumb a:hover{color:var(--primary)}

/* ---------- 通用区块 ---------- */
.section{padding:72px 0}
.section-gray{background:var(--bg-gray)}
.section-tag{display:block;color:var(--primary);font-size:13px;letter-spacing:3px;font-weight:700;margin-bottom:8px}
.section-tag.center{text-align:center}
.section-title{font-size:30px;margin-bottom:40px;position:relative}
.section-title.center{text-align:center}
.section-title.center::after{content:"";display:block;width:48px;height:4px;border-radius:2px;background:var(--primary);margin:14px auto 0}
.section-sub{color:var(--muted);font-size:16px;margin-top:-28px;margin-bottom:40px}
.btn{display:inline-block;padding:12px 30px;border-radius:10px;font-size:15px;transition:.25s;cursor:pointer;border:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px)}
.btn-outline-light{border:2px solid rgba(255,255,255,.6);color:#fff;background:transparent}
.btn-outline-light:hover{background:rgba(255,255,255,.1)}
.btn-outline{border:2px solid var(--primary);color:var(--primary);background:transparent}
.btn-outline:hover{background:var(--primary);color:#fff}
.empty{color:var(--muted);padding:40px 0}
.err-code{font-size:96px;color:var(--primary)}

/* ---------- 服务行 ---------- */
.service-row{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.service-row.reverse{direction:rtl}
.service-row.reverse > *{direction:ltr}
.service-img{display:flex;justify-content:center}
.img-card{width:100%;max-width:420px;border-radius:var(--radius);padding:40px 30px;color:#fff;text-align:center;box-shadow:var(--shadow)}
.img-card.blue{background:linear-gradient(135deg,#1552f0,#3b82f6)}
.img-card.purple{background:linear-gradient(135deg,#7c3aed,#a855f7)}
.img-card.cyan{background:linear-gradient(135deg,#0891b2,#06b6d4)}
.big-icon{font-size:48px;display:block;margin-bottom:16px}
.img-card h3{font-size:20px;margin-bottom:10px}
.img-card p{opacity:.9;font-size:14px}
.service-text .section-title{margin-bottom:20px}
.service-text > p{color:var(--muted);margin-bottom:20px}
.check-list{list-style:none;margin-bottom:28px}
.check-list li{padding:8px 0;padding-left:28px;position:relative;color:#33415e}
.check-list li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}

/* ---------- 解决方案 ---------- */
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.solution-card{background:#fff;border-radius:var(--radius);padding:34px 26px;box-shadow:var(--shadow);transition:.3s;display:block;border-top:4px solid transparent}
.solution-card:hover{transform:translateY(-6px);border-top-color:var(--primary)}
.solution-icon{font-size:36px;margin-bottom:14px;display:block}
.solution-card h3{font-size:18px;margin-bottom:10px}
.solution-card p{color:var(--muted);font-size:14px;margin-bottom:16px}
.solution-card .link{color:var(--primary);font-size:14px;font-weight:600}

/* ---------- 合作伙伴 ---------- */
.partner-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.partner-item{background:#fff;border-radius:var(--radius);height:100px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow);padding:20px}
.partner-item img{max-height:50px;width:auto;object-fit:contain}
.partner-item span{color:var(--muted);font-size:14px}

/* ---------- 新闻 ---------- */
.news-home-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-home-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s;display:flex;flex-direction:column}
.news-home-card:hover{transform:translateY(-6px)}
.news-home-body{padding:22px}
.news-home-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);margin-bottom:10px;flex-wrap:wrap}
.top{display:inline-block;font-style:normal;font-size:12px;color:#fff;background:#f59e0b;border-radius:4px;padding:1px 8px}
.news-home-body h3{font-size:16px;margin-bottom:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-home-body p{color:var(--muted);font-size:13px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}

.news-list{list-style:none;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.news-list li{border-bottom:1px solid var(--line)}
.news-list li:last-child{border:none}
.news-list a{display:flex;gap:20px;padding:18px 24px;align-items:center;transition:.2s}
.news-list a:hover{background:#f6f9ff}
.news-list .date{color:var(--muted);font-size:14px;min-width:100px;flex-shrink:0}
.news-list .news-title{flex:1;font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-list .news-title:hover{color:var(--primary)}

/* ---------- 分页 ---------- */
.pagination{display:flex;gap:8px;justify-content:center;padding:36px 0 0;flex-wrap:wrap}
.pagination a,.pagination span{min-width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;border:1px solid var(--line);padding:0 12px;font-size:14px}
.pagination a:hover{border-color:var(--primary);color:var(--primary)}
.pagination .cur{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ---------- 分类筛选 ---------- */
.cat-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px}
.cat-filter a{padding:8px 20px;border-radius:20px;background:#fff;border:1px solid var(--line);font-size:14px;transition:.2s}
.cat-filter a:hover{border-color:var(--primary);color:var(--primary)}
.cat-filter a.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* ---------- 详情 ---------- */
.detail-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;margin-bottom:56px}
.detail-cover{height:360px;border-radius:var(--radius);background:linear-gradient(135deg,#e8efff,#d6e4ff);display:flex;align-items:center;justify-content:center;overflow:hidden;box-shadow:var(--shadow)}
.detail-cover img{width:100%;height:100%;object-fit:cover}
.detail-cover .ph.big{font-size:60px}
.detail-info h1{font-size:28px;margin:10px 0 16px}
.detail-info .summary{color:var(--muted);margin-bottom:18px}
.detail-info .views{font-size:13px;color:var(--muted);margin-bottom:26px}
.detail-content{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:36px}
.detail-content h2{font-size:22px;margin-bottom:18px;padding-left:12px;border-left:4px solid var(--primary)}
.article h1.article-title{font-size:30px;text-align:center;margin-bottom:16px}
.article-meta{display:flex;justify-content:center;gap:20px;color:var(--muted);font-size:14px;padding-bottom:24px;border-bottom:1px solid var(--line);margin-bottom:24px;flex-wrap:wrap}
.article-cover{width:100%;max-height:360px;object-fit:cover;border-radius:var(--radius);margin-bottom:24px}
.article p,.article li,.detail-content p,.detail-content li{margin:0 0 14px;color:#37455f;font-size:15px}
.article h2,.article h3,.detail-content h3{margin:24px 0 12px}
.article ul,.article ol,.detail-content ul,.detail-content ol{padding-left:24px}
.article-nav{display:flex;justify-content:space-between;gap:20px;margin-top:28px;color:var(--muted);font-size:14px;flex-wrap:wrap}
.article-nav a:hover{color:var(--primary)}

/* ---------- 关于 ---------- */
.about-page .about-content{max-width:860px;margin:0 auto 48px;font-size:16px;color:#37455f}
.about-page .about-content p{margin-bottom:16px}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.value-card{background:var(--bg-gray);border-radius:var(--radius);padding:28px 22px;text-align:center}
.value-card h3{font-size:17px;margin-bottom:10px;color:var(--primary)}
.value-card p{font-size:13px;color:var(--muted)}

/* ---------- 登录页 ---------- */
.login-front{display:flex;justify-content:center}
.login-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:40px;width:100%;max-width:420px;text-align:center}
.login-card h2{font-size:22px;margin-bottom:8px}
.login-card .sub{color:var(--muted);font-size:14px;margin-bottom:24px}

/* ---------- 联系卡片 ---------- */
.contact-note{background:linear-gradient(135deg,#0d3bb0,#3f7bff);color:#fff;border-radius:var(--radius);padding:40px;display:flex;flex-direction:column;justify-content:center;gap:16px}
.contact-note h3{font-size:22px}
.contact-note p{opacity:.9}

/* ---------- 页脚 ---------- */
.site-footer{background:#0f172a;color:#94a3b8;padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.site-footer p{margin-bottom:10px}
.site-footer a{color:#94a3b8;transition:.2s}
.site-footer a:hover{color:#fff}
.qr-placeholder{width:90px;height:90px;background:#1e293b;border-radius:8px;display:flex;align-items:center;justify-content:center;color:#64748b;font-size:12px;margin-bottom:10px;text-align:center}
.footer-qr{display:flex;flex-wrap:wrap;gap:10px}
.footer-bar{border-top:1px solid #1e293b;padding:20px 0;text-align:center;color:#64748b;font-size:13px}
.footer-bar a{color:#94a3b8}
.footer-bar a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
  .hero-inner{flex-direction:column;text-align:center;gap:30px}
  .hero-img{flex:0 0 auto;max-width:360px}
  .hero-text h1{font-size:30px}
  .service-row{grid-template-columns:1fr;gap:36px}
  .service-row.reverse{direction:ltr}
  .solution-grid{grid-template-columns:repeat(2,1fr)}
  .news-home-grid{grid-template-columns:repeat(2,1fr)}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:30px}
  .detail-grid{grid-template-columns:1fr}
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width: 640px) {
  .nav-toggle{display:block}
  .main-nav{position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:10px 20px 20px;box-shadow:0 10px 30px rgba(0,0,0,.08);display:none}
  .main-nav.open{display:flex}
  .main-nav > a,.nav-dropdown > a{display:block;width:100%}
  .dropdown-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;padding:0 0 0 16px;min-width:auto}
  .solution-grid{grid-template-columns:1fr}
  .news-home-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .value-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .news-list a{flex-direction:column;align-items:flex-start;gap:6px}
}