/* gzmccg.com - 明亮科技风样式 */
:root{
  --primary:#165DFF;
  --primary-2:#36CFC9;
  --grad:linear-gradient(135deg,#165DFF 0%,#2b7cff 55%,#36CFC9 100%);
  --text:#1d2129;
  --text-2:#4e5969;
  --text-3:#86909c;
  --bg:#f6f8fb;
  --card:#ffffff;
  --line:#e9eef5;
  --radius:12px;
  --shadow:0 2px 12px rgba(22,93,255,.06);
  --shadow-hover:0 10px 28px rgba(22,93,255,.14);
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft Yahei",sans-serif;
  background:var(--bg);color:var(--text);line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:1100px;margin:0 auto;padding:0 20px;}
section{padding:36px 0;scroll-margin-top:72px;}
@media(max-width:768px){.container{padding:0 12px;}section{padding:28px 0;}}

/* ===== 导航 ===== */
.navbar{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s,border-color .3s;
}
.navbar.scrolled{border-color:var(--line);box-shadow:0 2px 16px rgba(29,33,41,.06);}
.navbar-wrap{display:flex;align-items:center;justify-content:space-between;height:64px;}
.logo-area{display:flex;align-items:center;gap:10px;text-decoration:none;}
.logo-svg{width:38px;height:38px;flex:none;}
.logo-text h1{font-size:17px;font-weight:600;color:var(--text);letter-spacing:.5px;line-height:1.3;}
.logo-text small{display:block;font-size:11px;color:var(--primary);letter-spacing:2px;line-height:1.2;}
.nav-menu{display:flex;gap:6px;font-size:14px;}
.nav-menu a{
  color:var(--text-2);text-decoration:none;padding:7px 14px;border-radius:8px;
  transition:color .25s,background-color .25s;
}
.nav-menu a:hover{color:var(--primary);background:rgba(22,93,255,.07);}
@media(max-width:768px){.nav-menu{display:none;}.navbar-wrap{justify-content:center;}}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  background:var(--grad);color:#fff;
  padding:56px 0 60px;text-align:center;
}
.hero h2{
  font-size:clamp(22px,4vw,34px);font-weight:600;letter-spacing:1px;
  margin-bottom:12px;border:none;padding:0;color:#fff;
}
.hero p{opacity:.92;font-size:clamp(14px,2vw,17px);letter-spacing:.5px;}
.hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:22px;}
.hero-tags span{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);
  padding:5px 16px;border-radius:999px;font-size:13px;letter-spacing:1px;
  transition:background .25s,transform .25s;
}
.hero-tags span:hover{background:rgba(255,255,255,.24);transform:translateY(-2px);}
/* 漂浮魔方装饰 */
.cube{position:absolute;border-radius:14%;background:rgba(255,255,255,.10);animation:float 7s ease-in-out infinite;pointer-events:none;}
.cube.c1{width:130px;height:130px;top:-40px;left:6%;animation-delay:0s;}
.cube.c2{width:80px;height:80px;bottom:-24px;right:10%;animation-delay:1.6s;}
.cube.c3{width:46px;height:46px;top:26%;right:22%;animation-delay:3s;opacity:.7;}
@keyframes float{0%,100%{transform:translateY(0) rotate(0deg);}50%{transform:translateY(-16px) rotate(6deg);}}
@media(max-width:768px){.hero{padding:40px 0 44px;}}

/* ===== 区块标题 ===== */
.sec-head{margin-bottom:22px;}
.sec-head h2{
  font-size:22px;color:var(--text);font-weight:600;margin-bottom:4px;
  border:none;padding:0;display:flex;align-items:center;gap:10px;
}
.sec-head h2::before{
  content:"";width:4px;height:20px;border-radius:2px;flex:none;
  background:var(--grad);
}
.sec-head p{font-size:13px;color:var(--text-3);letter-spacing:.5px;}

/* ===== 通用卡片 ===== */
.card{
  background:var(--card);border-radius:var(--radius);
  border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .3s ease,box-shadow .3s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}

/* 企业简介 */
.about-card{padding:24px 26px;font-size:15px;color:var(--text-2);}
.about-card strong{color:var(--primary);font-weight:600;}

/* 数据亮点 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:16px;}
.stat{padding:16px 10px;text-align:center;}
.stat b{display:block;font-size:22px;color:var(--primary);line-height:1.4;}
.stat span{font-size:12px;color:var(--text-3);letter-spacing:1px;}
@media(max-width:640px){.stats{grid-template-columns:repeat(2,1fr);}}

/* ===== 工商信息 ===== */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;}
.info-card{padding:16px 18px;}
.info-card small{display:block;font-size:12px;color:var(--text-3);letter-spacing:1px;margin-bottom:3px;}
.info-card strong{color:var(--text);font-size:14px;font-weight:600;word-break:break-all;}

/* ===== 核心业务 ===== */
.biz-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.biz-card{padding:22px 20px;}
.biz-icon{
  width:44px;height:44px;border-radius:10px;margin-bottom:14px;
  display:flex;align-items:center;justify-content:center;flex:none;
  background:linear-gradient(135deg,rgba(22,93,255,.10),rgba(54,207,201,.14));
  color:var(--primary);
  transition:transform .3s ease,background .3s ease,color .3s ease;
}
.biz-icon svg{width:22px;height:22px;}
.biz-card:hover .biz-icon{transform:scale(1.08) rotate(-4deg);background:var(--grad);color:#fff;}
.biz-card h3{font-size:15px;font-weight:600;margin-bottom:6px;}
.biz-card p{font-size:13px;color:var(--text-2);line-height:1.8;}
@media(max-width:900px){.biz-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:640px){.biz-grid{grid-template-columns:1fr;}}

/* ===== 项目案例 ===== */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.case-card{padding:22px 20px;position:relative;overflow:hidden;}
.case-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .35s ease;
}
.case-card:hover::before{transform:scaleX(1);}
.case-num{font-size:12px;color:var(--primary-2);font-weight:600;letter-spacing:2px;margin-bottom:8px;}
.case-card h3{font-size:15px;font-weight:600;margin-bottom:8px;}
.case-card p{font-size:13px;color:var(--text-2);}
@media(max-width:900px){.case-grid{grid-template-columns:1fr;}}

/* ===== 联系我们 ===== */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
.contact-item{display:flex;align-items:center;gap:14px;padding:18px 20px;}
.contact-item .biz-icon{margin-bottom:0;width:40px;height:40px;}
.contact-item div small{display:block;font-size:12px;color:var(--text-3);}
.contact-item div strong{font-size:14px;color:var(--text);font-weight:500;word-break:break-all;}
.contact-item a{color:inherit;text-decoration:none;transition:color .25s;}
.contact-item a:hover{color:var(--primary);}
.icp-line{margin-top:14px;text-align:center;font-size:12px;color:var(--text-3);letter-spacing:.5px;}
@media(max-width:640px){.contact-grid{grid-template-columns:1fr;}}

/* ===== 页脚（浅色） ===== */
.footer{
  background:#eef2f8;border-top:1px solid var(--line);
  text-align:center;padding:20px 0;font-size:13px;color:var(--text-3);
}
.footer b{color:var(--text-2);font-weight:500;}

/* ===== 回到顶部 ===== */
.back-top{
  position:fixed;right:18px;bottom:22px;z-index:99;
  width:40px;height:40px;border-radius:10px;border:none;cursor:pointer;
  background:var(--card);color:var(--primary);box-shadow:var(--shadow-hover);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .3s,visibility .3s,transform .3s,background .3s;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{background:var(--primary);color:#fff;}
.back-top svg{width:18px;height:18px;}

/* ===== 滚动渐入 ===== */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:none;}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .cube{animation:none;}
  html{scroll-behavior:auto;}
}