/* ============================================================
   石家庄珩泽科技有限公司 官网样式
   主题：工业科技蓝 Industrial Tech Blue
   ============================================================ */

:root{
  --navy:#0a2b52;
  --navy-2:#0d3a6e;
  --blue:#1463b8;
  --blue-2:#1e7fd9;
  --sky:#35a0ea;
  --ink:#26313d;
  --muted:#5f7489;
  --line:#e2eaf3;
  --bg:#f4f7fb;
  --card:#ffffff;
  --food:#0f9d6e;
  --amber:#f0a33a;
  --shadow:0 8px 28px rgba(10,43,82,.08);
  --radius:14px;
  --head-h:72px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Segoe UI","Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer}

.container{width:min(1180px,92%);margin-inline:auto}

/* ---------------- 顶部信息条 ---------------- */
.topbar{
  background:var(--navy);
  color:#cfe0f3;
  font-size:13px;
}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:14px;padding-block:7px;flex-wrap:wrap}
.topbar a:hover{color:#fff}
.topbar svg{vertical-align:-2px;margin-right:5px}
.topbar .tb-left,.topbar .tb-right{display:flex;gap:18px;align-items:center;flex-wrap:wrap}

/* ---------------- 主头部 ---------------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.head-main{height:var(--head-h);display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand .logo{
  width:42px;height:42px;border-radius:10px;
  background:linear-gradient(135deg,var(--navy),var(--blue));
  display:grid;place-items:center;color:#fff;flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-cn{font-size:19px;font-weight:800;color:var(--navy);letter-spacing:.5px}
.brand-en{font-size:11px;color:var(--muted);letter-spacing:1.6px;font-weight:600}

.main-nav{display:flex;gap:6px}
.main-nav a{
  padding:8px 14px;border-radius:8px;font-size:15px;color:#33455a;font-weight:500;
  transition:.2s;
}
.main-nav a:hover{color:var(--blue);background:#eef4fb}
.main-nav a.active{color:#fff;background:linear-gradient(135deg,var(--blue),var(--sky));box-shadow:0 4px 10px rgba(20,99,184,.28)}

.head-actions{display:flex;align-items:center;gap:12px}
.lang-btn{
  border:1.5px solid var(--blue);color:var(--blue);background:#fff;
  border-radius:999px;padding:6px 16px;font-size:13px;font-weight:700;letter-spacing:.5px;
  transition:.2s;
}
.lang-btn:hover{background:var(--blue);color:#fff}
.nav-toggle{display:none;background:none;border:none;font-size:26px;color:var(--navy);line-height:1}

/* ---------------- 通用区块 ---------------- */
.sec{padding:72px 0}
.sec.alt{background:var(--card)}
.sec-head{max-width:760px;margin:0 auto 42px;text-align:center}
.sec-kicker{color:var(--blue);font-weight:700;letter-spacing:3px;font-size:13px;text-transform:uppercase}
.sec-title{font-size:32px;font-weight:800;color:var(--navy);margin:8px 0 12px}
.sec-sub{color:var(--muted);font-size:15px}

/* 页面横幅 */
.page-hero{
  background:linear-gradient(120deg,var(--navy) 0%,var(--navy-2) 45%,var(--blue) 100%);
  color:#fff;padding:64px 0 58px;position:relative;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
   radial-gradient(420px 220px at 88% 20%,rgba(255,255,255,.12),transparent 60%),
   radial-gradient(300px 200px at 8% 90%,rgba(53,160,234,.25),transparent 60%);
}
.page-hero .container{position:relative;z-index:1}
.page-hero h1{font-size:36px;font-weight:800;letter-spacing:.5px}
.page-hero p{color:#cfe2f6;margin-top:10px;font-size:16px;max-width:760px}
.crumb{font-size:13px;color:#9cc3ea;margin-top:18px}
.crumb b{color:#fff}

/* ---------------- 首页 Hero ---------------- */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background:
   radial-gradient(900px 480px at 85% -10%,rgba(53,160,234,.35),transparent 60%),
   radial-gradient(700px 420px at -10% 110%,rgba(15,99,210,.4),transparent 60%),
   linear-gradient(120deg,#081f3d 0%,#0b3a72 52%,#1457a6 100%);
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;padding:84px 0}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.25);border-radius:999px;
  padding:6px 16px;font-size:13px;color:#d9e9fb;letter-spacing:1px;
}
.hero h1{font-size:44px;line-height:1.25;font-weight:800;margin:18px 0 14px}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#6cc2ff,#bfe3ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{color:#cfe2f6;font-size:16.5px;max-width:560px}
.hero .badges{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0 26px}
.hero .badge{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.28);
  border-radius:8px;padding:5px 12px;font-size:13.5px;color:#eaf4fd;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:10px;padding:12px 26px;font-size:15.5px;font-weight:700;border:none;
  transition:.2s;white-space:nowrap;
}
.btn.primary{background:linear-gradient(135deg,#f0a33a,#ffbd5f);color:#3c2403;box-shadow:0 8px 20px rgba(240,163,58,.35)}
.btn.primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,163,58,.45)}
.btn.outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.65)}
.btn.outline:hover{background:rgba(255,255,255,.12)}
.btn.blue{background:linear-gradient(135deg,var(--blue),var(--sky));color:#fff;box-shadow:0 8px 18px rgba(20,99,184,.3)}
.btn.blue:hover{transform:translateY(-2px)}
.hero-stats{display:flex;gap:34px;margin-top:38px;border-top:1px solid rgba(255,255,255,.18);padding-top:20px}
.hero-stats .num{font-size:26px;font-weight:800;color:#fff}
.hero-stats .lab{font-size:12.5px;color:#a9c8ea}
.hero-visual{position:relative}
.hero-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.2);
  border-radius:18px;padding:26px;backdrop-filter:blur(6px);
}
.hero-card .h{display:flex;align-items:center;gap:10px;font-weight:800;color:#fff;margin-bottom:14px}
.hero-card .h .dot{width:9px;height:9px;border-radius:50%;background:#4cd79a;box-shadow:0 0 0 4px rgba(76,215,154,.22)}
.hero-card .row{display:flex;justify-content:space-between;gap:10px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.16);font-size:14.5px}
.hero-card .row span{color:#cfe2f6}
.hero-card .row b{color:#fff;font-weight:700}
.hero-card .row:last-child{border-bottom:none}

/* ---------------- 特性 ---------------- */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;box-shadow:var(--shadow);transition:.25s;
}
.feat-card:hover{transform:translateY(-5px);border-color:#bcd7f2}
.feat-card .ico{
  width:52px;height:52px;border-radius:13px;display:grid;place-items:center;margin-bottom:16px;
  background:linear-gradient(135deg,#e7f1fb,#d3e7fa);color:var(--blue);
}
.feat-card h3{font-size:17.5px;color:var(--navy);margin-bottom:8px}
.feat-card p{font-size:14px;color:var(--muted)}

/* ---------------- 产品 ---------------- */
.prod-strip{display:flex;flex-direction:column;gap:16px}
.prod-row{
  display:flex;align-items:center;gap:20px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;
  box-shadow:var(--shadow);transition:.25s;
}
.prod-row:hover{transform:translateX(6px);border-color:#bcd7f2}
.prod-ico{
  width:58px;height:58px;border-radius:14px;flex-shrink:0;
  display:grid;place-items:center;color:#fff;
}
.prod-ico.f{background:linear-gradient(135deg,#0d8a62,#23b98a)}
.prod-ico.i{background:linear-gradient(135deg,#0f5aa8,#2f8fe0)}
.prod-row .meta{flex:1;min-width:0}
.prod-row h3{font-size:17.5px;color:var(--navy)}
.prod-row p{font-size:13.5px;color:var(--muted);margin-top:3px}
.pill{
  display:inline-block;border-radius:999px;padding:2px 11px;font-size:12px;font-weight:700;
  margin-left:10px;vertical-align:2px;white-space:nowrap;
}
.pill.food{background:#e2f6ee;color:var(--food)}
.pill.ind{background:#e5f0fb;color:#1264b5}

/* ---------------- 应用 ---------------- */
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.app-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow);transition:.25s;position:relative;overflow:hidden;
}
.app-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--sky),var(--blue));opacity:0;transition:.25s;
}
.app-card:hover::before{opacity:1}
.app-card:hover{transform:translateY(-4px)}
.app-card .ico{width:50px;height:50px;border-radius:12px;display:grid;place-items:center;background:#e7f1fb;color:var(--blue);margin-bottom:14px}
.app-card h3{font-size:17px;color:var(--navy);margin-bottom:7px}
.app-card p{font-size:14px;color:var(--muted)}
.app-card .tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}
.app-card .tags span{font-size:12px;background:#eef4fb;color:#33506e;border-radius:6px;padding:2px 9px}

/* ---------------- CTA 横幅 ---------------- */
.cta-band{
  background:
    radial-gradient(600px 260px at 90% 10%,rgba(240,163,58,.25),transparent 60%),
    linear-gradient(120deg,var(--navy),var(--blue));
  color:#fff;border-radius:20px;padding:46px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;font-weight:800}
.cta-band p{color:#d6e6f7;margin-top:6px;font-size:15px}

/* ---------------- 产品详情页 ---------------- */
.prod-anchor{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:48px}
.prod-anchor a{
  border:1px solid var(--line);background:#fff;border-radius:999px;
  padding:8px 18px;font-size:14px;color:#33455a;font-weight:500;transition:.2s;
}
.prod-anchor a:hover{border-color:var(--blue);color:var(--blue);background:#f2f8fe}

.prod-block{
  background:var(--card);border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow);padding:34px 34px 28px;margin-bottom:34px;scroll-margin-top:100px;
}
.prod-block .head{display:flex;align-items:center;gap:16px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:22px}
.prod-block .head .p-ico{width:58px;height:58px;border-radius:15px;display:grid;place-items:center;color:#fff;flex-shrink:0}
.prod-block h2{font-size:23px;color:var(--navy);font-weight:800}
.prod-block h2 small{display:block;font-size:13.5px;color:var(--muted);font-weight:600;letter-spacing:.4px;margin-top:2px}
.grade-row{display:flex;gap:8px;margin-top:8px;flex-wrap:wrap}
.pinfo{display:grid;grid-template-columns:1fr 1fr;gap:16px 30px;margin-bottom:20px}
.pinfo .chip{border:1px solid var(--line);background:#f7fafd;border-radius:10px;padding:10px 16px;display:flex;gap:8px;align-items:baseline;flex-wrap:wrap;font-size:14px}
.pinfo .chip b{color:var(--navy)}
.pinfo .chip span{color:var(--muted);font-size:13px}
.prod-block h3{font-size:16.5px;color:var(--navy);margin:20px 0 12px;display:flex;align-items:center;gap:8px}
.prod-block h3::before{content:"";width:4px;height:17px;border-radius:2px;background:linear-gradient(180deg,var(--sky),var(--blue))}
.desc p{font-size:14.5px;color:#3b4c5e;margin-bottom:8px}

.spec-table{width:100%;border-collapse:collapse;font-size:14px;background:#fff}
.spec-table th,.spec-table td{border:1px solid var(--line);padding:10px 16px;text-align:left}
.spec-table thead th{background:linear-gradient(135deg,var(--navy),var(--blue-2));color:#fff;font-weight:600;white-space:nowrap}
.spec-table tbody tr:nth-child(even){background:#f7fafd}
.spec-table td:first-child{color:var(--navy);font-weight:600;white-space:nowrap}
.spec-table .tbd{color:#b0761a;font-weight:600}
.spec-note{font-size:12.5px;color:#8a9bae;margin-top:8px}

.use-list{columns:2;gap:26px}
.use-list li{font-size:14.5px;color:#3b4c5e;padding:7px 0 7px 26px;position:relative;break-inside:avoid}
.use-list li::before{
  content:"";position:absolute;left:4px;top:14px;width:8px;height:8px;border-radius:3px;
  background:linear-gradient(135deg,var(--sky),var(--blue));
}
.prod-cta{display:flex;gap:14px;align-items:center;margin-top:22px;flex-wrap:wrap}
.prod-cta .tel{font-size:15px;color:var(--muted)}
.prod-cta .tel b{color:var(--blue);font-size:17px;letter-spacing:.5px}

/* ---------------- 关于页 ---------------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start}
.about-text p{font-size:15.5px;color:#3b4c5e;margin-bottom:14px;text-align:justify}
.about-text strong{color:var(--navy)}
.motto{
  border-left:4px solid var(--blue);background:#eef4fb;border-radius:0 12px 12px 0;
  padding:16px 20px;font-size:15px;color:#1d4f86;font-weight:600;margin:18px 0;
}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}
.value-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;text-align:center;box-shadow:var(--shadow)}
.value-card .ico{width:54px;height:54px;margin:0 auto 12px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--blue),var(--sky));color:#fff}
.value-card h4{color:var(--navy);font-size:17px;margin-bottom:6px}
.value-card p{font-size:13.5px;color:var(--muted)}
.why-list{display:flex;flex-direction:column;gap:14px}
.why-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;box-shadow:var(--shadow)}
.why-item .ico{width:42px;height:42px;flex-shrink:0;border-radius:11px;display:grid;place-items:center;background:#e7f1fb;color:var(--blue)}
.why-item h4{color:var(--navy);font-size:15.5px}
.why-item p{font-size:13.5px;color:var(--muted)}

/* ---------------- 联系页 ---------------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:start}
.c-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px}
.c-card h3{font-size:19px;color:var(--navy);margin-bottom:16px;display:flex;align-items:center;gap:10px}
.c-card h3 .ico{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,var(--blue),var(--sky));color:#fff}
.c-line{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line)}
.c-line:last-of-type{border-bottom:none}
.c-line .lbl{font-size:12.5px;color:var(--muted);display:block}
.c-line .val{font-size:16px;color:var(--navy);font-weight:700;word-break:break-all}
.c-line .sub{font-size:13px;color:var(--muted)}

.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}
.form-card h3{font-size:20px;color:var(--navy);margin-bottom:6px}
.form-card .fs{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.fitem{display:flex;flex-direction:column;gap:6px}
.fitem.full{grid-column:1/-1}
.fitem label{font-size:13.5px;font-weight:600;color:#33455a}
.fitem label i{color:#d64545;font-style:normal}
.fitem input,.fitem select,.fitem textarea{
  border:1.5px solid var(--line);border-radius:9px;padding:11px 13px;font-size:14.5px;
  font-family:inherit;color:var(--ink);background:#fbfdff;transition:.2s;width:100%;
}
.fitem input:focus,.fitem select:focus,.fitem textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(20,99,184,.12);background:#fff}
.fitem textarea{resize:vertical;min-height:110px}
.form-submit{grid-column:1/-1;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.form-tip{font-size:12.5px;color:#8a9bae;grid-column:1/-1}

/* ---------------- 页脚 ---------------- */
.site-foot{background:var(--navy);color:#b9cde4;margin-top:70px}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:34px;padding:52px 0 38px}
.site-foot h4{color:#fff;font-size:16px;margin-bottom:16px;position:relative;padding-bottom:10px}
.site-foot h4::after{content:"";position:absolute;left:0;bottom:0;width:28px;height:2.5px;border-radius:2px;background:linear-gradient(90deg,var(--sky),var(--blue-2))}
.site-foot a{display:block;padding:4px 0;font-size:14px;transition:.2s}
.site-foot a:hover{color:#fff;padding-left:5px}
.site-foot .fbrand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.site-foot .fbrand .logo{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,#1e7fd9,#35a0ea);display:grid;place-items:center;color:#fff}
.site-foot p{font-size:14px;line-height:1.9}
.foot-contact li{display:flex;gap:10px;font-size:14px;padding:5px 0;align-items:flex-start}
.foot-contact svg{flex-shrink:0;margin-top:4px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;font-size:13px;text-align:center;color:#8ba7c6}

/* ---------------- 通用 ---------------- */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.lead-big{font-size:16.5px;color:#3b4c5e;max-width:860px;margin:0 auto 34px;text-align:center}
.center{text-align:center}
.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-36{margin-top:36px}
.hr{display:block;width:100%;height:1px;background:var(--line);margin:18px 0}

/* 化学式下标符号保持基线 */
sub,sub i,chem{vertical-align:baseline}

/* 段落强调 */
.hl{color:var(--blue);font-weight:700}

/* ---------------- 响应式 ---------------- */
@media (max-width:1020px){
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .app-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{display:none}
  .about-grid,.contact-grid{grid-template-columns:1fr}
}
@media (max-width:860px){
  .nav-toggle{display:block}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;background:#fff;
    border-bottom:1px solid var(--line);
    flex-direction:column;padding:12px 4%;display:none;box-shadow:0 18px 30px rgba(10,43,82,.12);
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:13px 10px;font-size:16px;border-radius:10px}
  .main-nav a.active{background:#e5f0fb;color:var(--blue)}
}
@media (max-width:640px){
  .sec{padding:52px 0}
  .hero h1{font-size:31px}
  .hero{padding-top:10px}
  .hero-grid{padding:52px 0 30px}
  .page-hero h1{font-size:27px}
  .feat-grid,.app-grid,.value-grid,.grid-2{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .use-list{columns:1}
  .fgrid{grid-template-columns:1fr}
  .pinfo{grid-template-columns:1fr}
  .prod-block{padding:24px 18px}
  .hero-stats{flex-wrap:wrap;gap:20px}
  .cta-band{padding:32px 24px}
  .topbar .tb-right{display:none}
}