/* ============================================================
   河南申士电子 · 官网样式
   基调：深蓝（专业/可信）+ 青绿（可验证）
   ============================================================ */
:root{
  --navy:#0a2d4d; --navy2:#123f68; --blue:#1565c0; --blue-lt:#2e7fd4;
  --teal:#00a88e; --teal-dk:#008a74;
  --ink:#0f172a; --body:#334155; --sub:#64748b;
  --line:#e2e8f0; --bg:#ffffff; --soft:#f6f9fc; --soft2:#eef4fa;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06),0 1px 3px rgba(15,23,42,.04);
  --shadow:0 4px 12px rgba(15,23,42,.07),0 2px 4px rgba(15,23,42,.04);
  --shadow-lg:0 12px 32px rgba(10,45,77,.10),0 4px 8px rgba(10,45,77,.05);
  --r:10px; --wrap:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--body);
  font:16px/1.85 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto}
a{color:var(--blue);text-decoration:none;transition:color .18s}
a:hover{color:var(--teal-dk)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ---------- 顶栏 ---------- */
.hd{
  position:sticky;top:0;z-index:100;
  background:linear-gradient(160deg,var(--navy) 0%,var(--navy2) 55%,#164a7a 100%);
  box-shadow:0 2px 16px rgba(10,45,77,.22);
}
.hd .wrap{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding-top:9px;padding-bottom:0}
.brand{order:1;display:flex;align-items:center;gap:12px;flex:none;line-height:1.2}
.brand .logo{height:44px;width:auto;display:block}
.brand .brand-tag{
  font-size:10.5px;letter-spacing:.24em;color:rgba(255,255,255,.66);
  border-left:1px solid rgba(255,255,255,.24);padding-left:12px;
  white-space:nowrap;line-height:1;
}
.hd-id{order:2;margin-left:auto;font-size:11px;color:rgba(255,255,255,.5);letter-spacing:.5px;white-space:nowrap}
.nav{order:4;display:flex;flex-wrap:wrap;gap:1px;flex:1 0 100%;justify-content:space-between;
  margin-top:9px;padding:5px 0 8px;border-top:1px solid rgba(255,255,255,.10)}
.nav a{color:rgba(255,255,255,.82);font-size:13.5px;padding:6px 10px;border-radius:6px;white-space:nowrap;transition:all .18s}
.nav a:hover{color:#fff;background:rgba(255,255,255,.11)}
.nav a.on{color:#fff;background:rgba(0,168,142,.26);box-shadow:inset 0 0 0 1px rgba(0,200,170,.42)}
.tel{
  order:3;display:inline-flex;align-items:center;gap:9px;
  flex:none;color:#fff;font-weight:700;font-size:15px;letter-spacing:.3px;
  padding:10px 18px;border-radius:8px;
  background:linear-gradient(135deg,var(--teal) 0%,var(--teal-dk) 100%);
  box-shadow:0 3px 10px rgba(0,168,142,.32);transition:transform .18s,box-shadow .18s;
}
.tel .tel-lab{
  font-size:11.5px;font-weight:400;letter-spacing:.6px;color:rgba(255,255,255,.88);
  border-right:1px solid rgba(255,255,255,.4);padding-right:9px;
}
.tel:hover{color:#fff;transform:translateY(-1px);box-shadow:0 5px 14px rgba(0,168,142,.42)}

/* ---------- 主体 ---------- */
main.wrap{padding-top:54px;padding-bottom:76px}
h1{font-size:42px;line-height:1.3;font-weight:800;color:var(--ink);letter-spacing:-.6px;margin:0 0 16px;max-width:940px}
h1::after{content:"";display:block;width:76px;height:4px;margin-top:24px;border-radius:2px;background:linear-gradient(90deg,var(--teal) 0%,var(--blue) 100%)}
h2{font-size:27px;line-height:1.45;font-weight:700;color:var(--ink);margin:58px 0 18px;padding-left:16px;position:relative}
h2::before{content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--teal) 0%,var(--blue) 100%)}
h3{font-size:18px;font-weight:700;color:var(--ink);margin:0 0 10px;line-height:1.5}
p{margin:0 0 16px}
b,strong{color:var(--ink);font-weight:700}
.sub{
  font-size:14px;color:var(--sub);margin:0 0 28px;letter-spacing:.4px;display:inline-block;
  padding:7px 16px;border-radius:100px;background:var(--soft2);border:1px solid #dbe8f5;
}
.lead{
  font-size:17.5px;line-height:1.95;color:#1e293b;
  background:linear-gradient(100deg,#f4fbf9 0%,#f3f8fd 100%);
  border-left:5px solid var(--teal);padding:26px 30px;
  border-radius:0 var(--r) var(--r) 0;margin:0 0 10px;box-shadow:var(--shadow-sm);
}
.note{font-size:14.5px;color:var(--sub);background:var(--soft);border:1px solid var(--line);border-left:4px solid var(--blue-lt);padding:15px 20px;border-radius:0 8px 8px 0;margin:24px 0}

/* ---------- 三栏卡片 ---------- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin:28px 0 8px}
.card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:28px 26px 26px;box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,var(--teal) 0%,var(--blue) 100%);transform:scaleX(0);transform-origin:left;transition:transform .28s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#cfe0f2}
.card:hover::before{transform:scaleX(1)}
.card h3{margin-bottom:10px}
.card p{font-size:14.5px;line-height:1.8;color:var(--body);margin:0}

/* ---------- 列表 ---------- */
ol,ul{margin:0 0 20px;padding-left:0;list-style:none}
ol{counter-reset:item}
ol>li{
  position:relative;padding:15px 20px 15px 56px;margin-bottom:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  font-size:15.5px;line-height:1.8;box-shadow:var(--shadow-sm);
  transition:background .18s,border-color .18s,box-shadow .18s;
}
ol>li::before{
  counter-increment:item;content:counter(item);position:absolute;left:17px;top:15px;
  width:27px;height:27px;line-height:27px;text-align:center;border-radius:50%;
  font-size:13px;font-weight:700;color:#fff;
  background:linear-gradient(135deg,var(--blue) 0%,var(--teal) 100%);
}
ol>li:hover{background:var(--soft);border-color:#cfe0f2;box-shadow:var(--shadow)}
ul>li{position:relative;padding-left:24px;margin-bottom:10px;font-size:15.5px}
ul>li::before{content:"";position:absolute;left:5px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--teal)}

/* ---------- 表格 ---------- */
table.t{
  width:100%;border-collapse:separate;border-spacing:0;font-size:14.5px;margin:24px 0;
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-sm);
}
table.t th{background:linear-gradient(180deg,#0f3b63 0%,var(--navy) 100%);color:#fff;font-weight:600;text-align:left;padding:14px 17px;font-size:13.5px;letter-spacing:.3px;white-space:nowrap}
table.t td{padding:13px 17px;border-top:1px solid var(--line);color:var(--body);vertical-align:top}
table.t tr:nth-child(even) td{background:#fafcff}
table.t tr:hover td{background:var(--soft2)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-block;padding:14px 28px;border-radius:8px;font-size:15px;font-weight:600;
  color:#fff;letter-spacing:.3px;border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--blue) 0%,#0d47a1 100%);
  box-shadow:0 3px 12px rgba(21,101,192,.28);
  transition:transform .18s,box-shadow .18s,filter .18s;
}
.btn:hover{color:#fff;transform:translateY(-2px);box-shadow:0 7px 20px rgba(21,101,192,.36);filter:brightness(1.05)}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13.5px;color:var(--sub);margin:0 0 24px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumb a{color:var(--sub)}
.crumb a:hover{color:var(--blue)}

/* ---------- 结构块 ---------- */
.meta{font-size:13.5px;color:var(--sub);margin-bottom:18px;display:flex;gap:16px;flex-wrap:wrap}
.body{font-size:16.5px;line-height:1.95;color:var(--body)}
.body h2{font-size:22px;margin:38px 0 14px}
.body h3{font-size:17px;margin:26px 0 10px}
.body img{border-radius:var(--r);box-shadow:var(--shadow);margin:18px 0}
.art{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:34px 36px;box-shadow:var(--shadow-sm);margin-bottom:24px}
.back{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--sub);
  margin-top:34px;padding:10px 20px;border:1px solid var(--line);border-radius:8px;
  background:#fff;transition:all .18s;
}
.back:hover{border-color:var(--blue-lt);color:var(--blue);background:var(--soft2)}

/* ---------- 新闻列表 ---------- */
.newslist{margin:28px 0}
.newslist a{
  display:block;padding:19px 24px;margin-bottom:12px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r);color:var(--ink);
  font-size:16px;font-weight:600;box-shadow:var(--shadow-sm);
  transition:transform .18s,box-shadow .18s,border-color .18s;
}
.newslist a:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:#cfe0f2;color:var(--blue)}

/* ---------- 证书清单 ---------- */
.cert-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:24px 0}
.cert-list>*{background:var(--soft);border:1px solid var(--line);border-radius:var(--r);padding:17px 19px;font-size:14.5px}

/* ---------- 页脚 ---------- */
.ft{margin-top:76px;padding:56px 0 30px;background:linear-gradient(165deg,#08243d 0%,var(--navy) 100%);color:rgba(255,255,255,.72);font-size:14px}
.ft .wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:38px}
.fcol h4,.fcol strong{color:#fff;font-size:14.5px;font-weight:700;margin:0 0 14px;display:block;letter-spacing:.4px}
.fcol p{margin:0 0 8px;font-size:13.5px;line-height:1.9}
.fcol a{color:rgba(255,255,255,.72)}
.fcol a:hover{color:#fff}
.cp{
  grid-column:1/-1;margin:34px 0 0;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;
  color:rgba(255,255,255,.48);text-align:center;
}
.cp a{color:rgba(255,255,255,.6)}

/* ---------- 响应式 ---------- */
@media (max-width:1120px){
  .hd .wrap{min-height:auto}
  .nav{justify-content:flex-start;padding-top:6px}
  .nav a{font-size:13px;padding:6px 9px}
}
@media (max-width:980px){
  .hd-id{display:none}
  .tel{margin-left:auto}
  .grid3{grid-template-columns:1fr}
  .cert-list{grid-template-columns:1fr}
  .ft .wrap{grid-template-columns:1fr;gap:28px}
  h1{font-size:31px}
  h2{font-size:22px;margin:46px 0 16px}
  main.wrap{padding-top:36px}
  .lead{font-size:16px;padding:20px 22px}
}
@media (max-width:560px){
  .wrap{padding:0 18px}
  h1{font-size:26px;line-height:1.42}
  .brand{gap:0}
  .brand .logo{height:34px}
  .brand .brand-tag{display:none}
  .tel{font-size:13.5px;padding:8px 13px}
  .art{padding:22px 20px}
  table.t{font-size:13px}
  table.t th,table.t td{padding:10px 11px}
}

/* ---------- 打印 ---------- */
@media print{
  .hd,.ft,.back,.tel{display:none}
  body{font-size:12pt;color:#000}
  a{color:#000;text-decoration:underline}
  .card{box-shadow:none;border:1px solid #ccc}
}

/* ---------- 首页数据条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin:38px 0 6px;border-radius:12px;overflow:hidden;
  background:linear-gradient(135deg,#0a2d4d 0%,#123f68 55%,#17507f 100%);
  box-shadow:0 10px 30px rgba(10,45,77,.18);
}
.stat{padding:30px 18px;text-align:center;border-right:1px solid rgba(255,255,255,.10);transition:background .2s}
.stat:last-child{border-right:0}
.stat:hover{background:rgba(255,255,255,.05)}
.stat b{display:block;font-size:40px;line-height:1;color:#fff;font-weight:800;letter-spacing:-1.5px;font-variant-numeric:tabular-nums}
.stat b em{font-size:21px;font-style:normal;color:#2fe0bd;margin-left:2px;font-weight:700}
.stat span{display:block;margin-top:10px;font-size:13px;color:rgba(255,255,255,.62);letter-spacing:.6px}
@media (max-width:860px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid rgba(255,255,255,.10)}
  .stat b{font-size:32px}
}