:root{
  --blue:#2175FF;
  --blue-dark:#1E4FA8;
  --blue-light:#E6EFFF;
  --blue-bg:#F1F6FF;
  --text-dark:#1F2329;
  --text-secondary:#595E68;
  --text-muted:#595F6A;
  --border:#D4E2F7;
  --white:#FFFFFF;
}


.landing-page{
  font-family:"Source Han Sans CN","Sarasa Gothic SC","Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,sans-serif;
  background:#fff;
  color:var(--text-dark);
  -webkit-font-smoothing:antialiased;
}
.landing-page *{box-sizing:border-box;}
.page{width:100%;position:relative;background:#fff;}
.section{position:relative;left:0;width:100%;}
.container{position:relative;left:auto;width:1280px;max-width:calc(100% - 80px);margin:0 auto;padding-top:20px;}

/* 区块标题 */
.sec-title{width:420px;height:90px;margin:0 auto;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;}
.sec-title .t{font-size:28px;font-weight:500;color:var(--text-dark);line-height:1.4;}
.sec-title .s{font-size:14px;font-weight:400;color:var(--text-secondary);line-height:1.6;white-space:nowrap;}

/* 卡片通用阴影 */
.shadow{box-shadow:0 2px 10px rgba(31,35,41,.08);}

/* ===== Hero ===== */
.hero{height:500px;background:#fff;position:relative;}
.hero .banner{position:absolute;left:0;top:0;width:100%;height:500px;object-fit:cover;}
.hero .overlay{position:absolute;left:0;top:0;width:100%;height:500px;background:linear-gradient(to right,#172B4D 0%,rgba(23,43,77,.7) 47%,rgba(23,43,77,0) 100%);}
.hero-copy{position:absolute;left:50%;top:100px;width:600px;margin-left:-640px;display:flex;flex-direction:column;gap:20px;}
.hero-copy .main{font-size:36px;font-weight:700;color:#fff;line-height:1.3;}
.hero-copy .desc{font-size:14px;font-weight:400;color:#E5E5EB;line-height:22px;}
.hero-copy .btn{margin-top:6px;width:138px;height:38px;background:#2175FF;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:14px;color:#fff;cursor:pointer;transition:background .2s ease;text-decoration:none;}
.hero-copy .btn:hover{background:#3F87FF;}
.hero-tags{position:absolute;left:50%;top:332px;margin-left:-640px;display:flex;flex-wrap:wrap;gap:12px;}
.hero-tags .tag{height:40px;padding:0 16px;background:rgba(33,117,255,0.15);border:1px solid rgba(255,255,255,0.2);border-radius:999px;display:flex;align-items:center;font-size:14px;font-weight:500;color:#fff;}
.stats-bar{position:absolute;left:50%;top:450px;width:1280px;max-width:calc(100% - 80px);height:100px;margin-left:-640px;background:#fff;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,0.1);display:flex;align-items:center;padding:0 16px;z-index:10;}
.stats-bar .stat{flex:1;display:flex;flex-direction:column;gap:4px;align-items:center;justify-content:center;height:60px;}
.stats-bar .stat .num{font-size:24px;font-weight:700;color:var(--blue);line-height:1.2;text-align:center;}
.stats-bar .stat .num.dark{color:var(--text-dark);}
.stats-bar .stat .lbl{font-size:14px;font-weight:400;color:var(--text-secondary);line-height:1.4;text-align:center;white-space:nowrap;}
.stats-bar .div{width:1px;height:40px;background:#EEEEEE;flex-shrink:0;}

/* ===== 1区域 政策背景 ===== */
.sec-policy{background:#fff;}
.policy-grid{position:relative;margin-top:20px;display:flex;flex-wrap:wrap;gap:20px;}
.policy-card{width:305px;min-height:140px;background:#fff;border-radius:8px;box-shadow:0 2px 10px rgba(31,35,41,.08);padding:24px 20px;display:flex;flex-direction:column;gap:10px;}
.policy-card .head{display:flex;align-items:center;justify-content:space-between;gap:8px;}
.policy-card .ct{font-size:16px;font-weight:500;color:var(--text-dark);line-height:24px;}
.policy-card .arrow{flex:0 0 16px;width:16px;height:16px;display:flex;align-items:center;justify-content:center;}
.policy-card .cd{font-size:14px;font-weight:400;color:var(--text-secondary);line-height:22px;}

/* ===== 2区域 系统定位 ===== */
.sec-position{background:var(--blue-bg);}
.position-grid{position:relative;margin-top:20px;display:flex;flex-wrap:wrap;gap:20px;}
.position-card{width:305px;height:340px;background:#fff;border-radius:12px;box-shadow:0 2px 10px rgba(31,35,41,.08);overflow:hidden;display:flex;flex-direction:column;}
.position-card .img{width:305px;height:180px;object-fit:cover;flex:0 0 180px;}
.position-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;}
.position-card .pt{font-size:16px;font-weight:500;color:var(--text-dark);line-height:24px;}
.position-card .pd{font-size:14px;font-weight:400;color:var(--text-secondary);line-height:22px;}

/* ===== 3区域 核心功能 ===== */
.sec-func{background:#fff;}
.func-grid{position:relative;margin-top:20px;display:flex;flex-wrap:wrap;gap:24px;}
.func-card{width:410px;height:110px;background:#fff;border:1px solid var(--border);border-radius:8px;position:relative;box-sizing:border-box;}
.func-card .num{position:absolute;left:20px;top:20px;width:53px;height:53px;background:var(--blue-light);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700;color:var(--blue);border-radius:6px;}
.func-card .info{position:absolute;left:93px;top:20px;width:293px;display:flex;flex-direction:column;gap:8px;}
.func-card .ft{font-size:16px;font-weight:500;color:var(--text-dark);line-height:24px;}
.func-card .fd{font-size:14px;font-weight:400;color:var(--text-secondary);line-height:22px;}

/* ===== 4区域 硬件配置 ===== */
.sec-hardware{background:var(--blue-bg);}
.hw-table{position:relative;margin-top:20px;background:#fff;border-radius:12px;overflow:hidden;border:1px solid var(--border);}
.hw-row{display:flex;}
.hw-row.hw-head{background:var(--blue-light);}
.hw-cell{padding:12px 20px;font-size:14px;color:var(--text-dark);border-right:1px solid var(--border);border-bottom:1px solid var(--border);display:flex;align-items:center;}
.hw-cell:last-child{border-right:none;}
.hw-row:last-child .hw-cell{border-bottom:none;}
.hw-head .hw-cell{font-weight:500;}
.hw-row:not(.hw-head) .hw-cell{font-weight:400;}
.hw-cell.c-name{width:320px;flex:0 0 320px;}
.hw-cell.c-qty{width:140px;flex:0 0 140px;}
.hw-cell.c-req{flex:1;}

/* ===== 5区域 数据联网 ===== */
.sec-net{background:#fff;}
.net-grid{position:relative;margin-top:20px;display:grid;grid-template-columns:628px 628px;gap:24px;}
.net-item{border:1px solid var(--border);border-radius:8px;padding:20px;display:flex;flex-direction:column;gap:10px;background:#fff;}
.net-item.full{grid-column:1 / -1;}
.net-item .head{display:flex;align-items:center;gap:8px;}
.net-item .icon{width:24px;height:24px;flex:0 0 24px;}
.net-item .nt{font-size:16px;font-weight:500;color:var(--text-dark);line-height:24px;}
.net-item .nd{font-size:14px;font-weight:400;color:var(--text-secondary);line-height:22px;}

/* ===== 6区域 我们的优势 ===== */
.sec-adv{background:var(--blue-bg);}
.adv-grid2{position:relative;margin-top:20px;display:flex;flex-wrap:wrap;gap:24px;}
.adv-card2{width:410px;height:166px;background:#fff;border-radius:12px;box-shadow:0 2px 10px rgba(31,35,41,.08);padding:20px;display:flex;flex-direction:column;align-items:center;gap:10px;}
.adv-card2 .icon{width:32px;height:32px;}
.adv-card2 .at{font-size:16px;font-weight:500;color:var(--text-dark);line-height:24px;}
.adv-card2 .ad{font-size:14px;font-weight:400;color:var(--text-secondary);line-height:22px;text-align:center;font-family:"Sarasa Gothic SC","Source Han Sans CN","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;}

/* ===== 7区域 应用价值 ===== */
.sec-value{background:#fff;}
.value-grid2{position:relative;margin-top:20px;padding:0 20px;display:flex;flex-wrap:wrap;gap:20px;}
.value-card2{width:295px;height:130px;background:#fff;border-radius:8px;box-shadow:0 2px 10px rgba(31,35,41,.08);padding:20px;display:flex;flex-direction:column;gap:10px;overflow:hidden;}
.value-card2 .head{position:relative;display:flex;align-items:center;justify-content:space-between;height:24px;}
.value-card2 .left{display:flex;align-items:center;gap:8px;}
.value-card2 .icon{width:18px;height:18px;flex:0 0 18px;}
.value-card2 .vt{font-size:16px;font-weight:500;color:var(--text-dark);line-height:24px;}
.value-card2 .arrow{display:flex;align-items:center;justify-content:center;width:16px;height:16px;}
.value-card2 .vd{font-size:14px;font-weight:400;color:#595F6A;line-height:22px;}

/* ===== 8区域 客户案例 ===== */
.sec-case{background:var(--blue-bg);}
.case-grid{position:relative;margin-top:20px;display:flex;flex-wrap:wrap;gap:24px;}
.case-card{width:410px;height:314px;background:#fff;border-radius:12px;box-shadow:0 2px 10px rgba(31,35,41,.08);overflow:hidden;display:flex;flex-direction:column;}
.case-card .img{width:410px;height:200px;object-fit:cover;flex:0 0 200px;display:block;}
.case-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;overflow:hidden;}
.case-card .ct{font-size:16px;font-weight:500;color:var(--text-dark);line-height:24px;}
.case-card .cd{font-size:14px;font-weight:400;color:#595F6A;line-height:22px;}

.landing-page .section:not(.hero){height:auto !important;top:auto !important;}
.landing-page .container{top:auto !important;padding-top:20px;padding-bottom:80px;}
.landing-page .hero{height:500px;position:relative;overflow:visible;margin-bottom:70px;}
.landing-page .hero-copy .btn:hover{color:#fff;}
.landing-page .sec-title{width:auto;max-width:100%;}
.landing-page .hw-table,.landing-page .flow{width:100%;}