/* ============================================================
   湖南嘉博科技有限公司 - 企业官网
   主题：金天鹅风格 - 冷静科技蓝 + 白色背景 + 金色点缀
   ============================================================ */

:root{
  /* 主色 - 科技蓝 */
  --blue-900:#0b2545;
  --blue-800:#13315c;
  --blue-700:#1c4b82;
  --blue-600:#2a6fb5;
  --blue-500:#3b82d4;
  --blue-400:#5ba3e8;
  --blue-300:#8cc0f0;
  --blue-100:#e8f2fc;
  --blue-050:#f2f8ff;
  /* 点缀 - 金色 */
  --gold:#c9952f;
  --gold-light:#e0b45a;
  --gold-dark:#a87a1f;
  /* 中性色 */
  --white:#ffffff;
  --bg:#f5f8fc;
  --bg-alt:#eef4fb;
  --gray-50:#f8fafc;
  --gray-100:#f1f5f9;
  --gray-200:#e2e8f0;
  --gray-300:#cbd5e1;
  --gray-400:#94a3b8;
  --gray-500:#64748b;
  --gray-600:#475569;
  --gray-700:#334155;
  --gray-800:#1e293b;
  --gray-900:#0f172a;
  /* 功能色 */
  --green:#16a34a;
  --green-bg:#ecfdf5;
  --orange:#ea7c0c;
  --orange-bg:#fff7ed;
  --red:#dc2626;
  --shadow-sm:0 1px 3px rgba(11,37,69,.08),0 1px 2px rgba(11,37,69,.06);
  --shadow:0 4px 12px rgba(11,37,69,.08),0 2px 4px rgba(11,37,69,.04);
  --shadow-md:0 8px 24px rgba(11,37,69,.10),0 4px 8px rgba(11,37,69,.04);
  --shadow-lg:0 16px 40px rgba(11,37,69,.14),0 8px 16px rgba(11,37,69,.06);
  --shadow-blue:0 8px 28px rgba(42,111,181,.25);
  --radius-sm:6px;
  --radius:10px;
  --radius-md:14px;
  --radius-lg:20px;
  --radius-xl:28px;
  --ease: cubic-bezier(.22,.68,.35,1);
  --container:1240px;
  --header-h:70px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","WenQuanYi Micro Hei","Segoe UI",Roboto,sans-serif;
  color:var(--gray-800);
  background:var(--white);
  line-height:1.7;
  font-size:15px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:.25s}
a:hover{color:var(--blue-600)}
ul,ol{list-style:none}
button,input,textarea,select{font:inherit;outline:none;border:none;background:none}
button{cursor:pointer}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.35;color:var(--gray-900)}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
section{padding:72px 0;position:relative}
section.pt-sm{padding:48px 0}
.bg-white{background:var(--white)}
.bg-gray{background:var(--bg)}
.bg-blue-soft{background:var(--blue-050)}
.bg-blue-dark{background:var(--blue-900)}
.bg-blue-gradient{background:linear-gradient(135deg,#0b2545 0%,#13315c 45%,#1c4b82 100%)}

/* ============ 通用标题 ============ */
.sec-head{text-align:center;max-width:760px;margin:0 auto 48px}
.sec-tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--blue-600);
  background:var(--blue-100);padding:5px 16px;border-radius:20px;
  letter-spacing:.05em;margin-bottom:14px;
}
.sec-title{
  font-size:34px;font-weight:800;color:var(--gray-900);margin-bottom:14px;
  letter-spacing:-.5px;
}
.sec-title .hl{color:var(--blue-600)}
.sec-title .gold{color:var(--gold)}
.sec-desc{font-size:16px;color:var(--gray-500);max-width:640px;margin:0 auto;line-height:1.8}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 30px;border-radius:var(--radius);font-weight:600;font-size:15px;
  transition:.3s var(--ease);white-space:nowrap;position:relative;overflow:hidden;
}
.btn-primary{background:var(--blue-600);color:#fff;box-shadow:var(--shadow-blue)}
.btn-primary:hover{background:var(--blue-700);color:#fff;transform:translateY(-2px);box-shadow:0 12px 32px rgba(42,111,181,.35)}
.btn-gold{background:var(--gold);color:#fff;box-shadow:0 8px 24px rgba(201,149,47,.3)}
.btn-gold:hover{background:var(--gold-dark);color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;border:2px solid var(--blue-600);color:var(--blue-600)}
.btn-outline:hover{background:var(--blue-600);color:#fff}
.btn-white{background:#fff;color:var(--blue-700);box-shadow:var(--shadow)}
.btn-white:hover{background:var(--blue-100);transform:translateY(-2px)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.15);border-color:#fff}
.btn-sm{padding:9px 20px;font-size:14px;border-radius:8px}
.btn-lg{padding:15px 38px;font-size:16px;border-radius:12px}

/* ============ 顶部通知条 ============ */
.topbar{
  background:var(--blue-900);color:rgba(255,255,255,.8);font-size:13px;
  padding:7px 0;position:relative;z-index:100;
}
.topbar .container{display:flex;justify-content:space-between;align-items:center;gap:16px}
.topbar a{color:rgba(255,255,255,.8)}
.topbar a:hover{color:var(--gold-light)}
.topbar .tb-left{display:flex;align-items:center;gap:20px}
.topbar .tb-left span{display:inline-flex;align-items:center;gap:6px}
.topbar .tb-right{display:flex;align-items:center;gap:16px}
.topbar .tb-hot{color:var(--gold-light);font-weight:600}

/* ============ 导航栏 ============ */
.header{
  position:sticky;top:0;z-index:99;background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--gray-200);
  transition:.3s;
}
.header.scrolled{box-shadow:var(--shadow)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--blue-600),var(--blue-800));
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:900;color:#fff;box-shadow:var(--shadow-blue);
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text strong{font-size:19px;font-weight:800;color:var(--blue-900);letter-spacing:-.3px}
.logo-text small{font-size:10px;color:var(--gray-400);letter-spacing:.15em;text-transform:uppercase}
.nav-menu{display:flex;align-items:center;gap:4px;height:100%}
.nav-item{position:relative;height:100%;display:flex;align-items:center}
.nav-item>a{
  display:flex;align-items:center;gap:4px;padding:0 14px;height:100%;
  font-size:15px;font-weight:600;color:var(--gray-700);white-space:nowrap;
  transition:.25s;
}
.nav-item>a:hover{color:var(--blue-600);background:var(--blue-050)}
.nav-item.active>a{color:var(--blue-600)}
.nav-item.active>a::after{
  content:"";position:absolute;bottom:0;left:14px;right:14px;height:3px;
  background:var(--blue-600);border-radius:3px 3px 0 0;
}
.nav-item.has-sub>a::after{
  content:"";width:0;height:0;display:inline-block;
  border-left:4px solid transparent;border-right:4px solid transparent;
  border-top:5px solid currentColor;margin-left:2px;opacity:.55;transition:.2s;
}
.nav-item.has-sub:hover>a::after{transform:rotate(180deg);opacity:1}
/* 下拉菜单 */
.dropdown{
  position:absolute;top:100%;left:0;min-width:760px;
  background:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);
  border:1px solid var(--gray-100);padding:8px;opacity:0;visibility:hidden;
  transform:translateY(12px);transition:.28s var(--ease);z-index:100;
}
.nav-item.has-sub:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px}
.dropdown-col-title{
  font-size:12px;font-weight:700;color:var(--blue-600);
  padding:12px 12px 6px;letter-spacing:.05em;
  border-bottom:1px solid var(--gray-100);margin-bottom:4px;
}
.dropdown a{
  display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;
  color:var(--gray-700);font-size:14px;font-weight:500;transition:.2s;
}
.dropdown a:hover{background:var(--blue-050);color:var(--blue-700);transform:translateX(3px)}
.dropdown a .ico{font-size:17px;width:26px;height:26px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:var(--blue-100);border-radius:7px;
}
.dropdown a:hover .ico{background:var(--blue-600);color:#fff}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0;margin-left:8px}
.nav-toggle{display:none;flex-direction:column;gap:5px;width:32px;height:32px;justify-content:center;align-items:center}
.nav-toggle span{width:22px;height:2px;background:var(--blue-800);border-radius:2px;transition:.3s}

/* 移动菜单 */
.mobile-menu{
  position:fixed;top:0;left:0;width:100%;height:100%;z-index:200;
  background:rgba(11,37,69,.5);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:.3s;
}
.mobile-menu.open{opacity:1;visibility:visible}
.mm-panel{
  position:absolute;top:0;right:0;width:86%;max-width:380px;height:100%;
  background:#fff;overflow-y:auto;padding:20px 0;transform:translateX(100%);
  transition:.35s var(--ease);
}
.mobile-menu.open .mm-panel{transform:translateX(0)}
.mm-head{display:flex;justify-content:space-between;align-items:center;padding:0 20px 16px;border-bottom:1px solid var(--gray-100)}
.mm-close{font-size:26px;color:var(--gray-400);line-height:1}
.mm-list{padding:8px 12px}
.mm-item{margin-bottom:2px}
.mm-item>a{
  display:flex;justify-content:space-between;align-items:center;
  padding:13px 12px;border-radius:10px;font-weight:600;color:var(--gray-800);font-size:15px;
}
.mm-item>a:active{background:var(--blue-050)}
.mm-sub{display:none;padding:4px 0 8px 20px}
.mm-sub.open{display:block}
.mm-sub a{display:block;padding:9px 12px;border-radius:8px;font-size:14px;color:var(--gray-600)}
.mm-sub a:active{background:var(--blue-050);color:var(--blue-700)}
.mm-cta{padding:16px 20px;border-top:1px solid var(--gray-100);margin-top:12px;display:flex;flex-direction:column;gap:10px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;padding:96px 0 88px;
  background:linear-gradient(160deg,#0b2545 0%,#13315c 40%,#1c4b82 75%,#2a6fb5 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(ellipse 70% 60% at 80% 20%,rgba(201,149,47,.18),transparent 60%),
    radial-gradient(ellipse 50% 50% at 15% 85%,rgba(91,163,232,.25),transparent 60%);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  padding:7px 16px;border-radius:30px;color:rgba(255,255,255,.95);font-size:13px;
  backdrop-filter:blur(4px);margin-bottom:20px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--gold-light);box-shadow:0 0 10px var(--gold-light)}
.hero h1{
  font-size:52px;font-weight:900;color:#fff;line-height:1.2;letter-spacing:-1px;margin-bottom:20px;
}
.hero h1 .gold{color:var(--gold-light)}
.hero-sub{font-size:18px;color:rgba(255,255,255,.8);margin-bottom:32px;line-height:1.8;max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px}
.hero-stat .num{font-size:32px;font-weight:900;color:#fff;line-height:1}
.hero-stat .num em{color:var(--gold-light);font-style:normal}
.hero-stat .lbl{font-size:13px;color:rgba(255,255,255,.65);margin-top:6px}
.hero-visual{position:relative}
.hv-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(16px);border-radius:var(--radius-lg);padding:24px;
  box-shadow:0 24px 60px rgba(0,0,0,.25);
}
.hv-window{
  background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 12px 36px rgba(0,0,0,.3);
}
.hv-titlebar{background:var(--gray-100);padding:10px 14px;display:flex;gap:6px;border-bottom:1px solid var(--gray-200)}
.hv-titlebar i{width:10px;height:10px;border-radius:50%;background:var(--gray-300)}
.hv-titlebar i:nth-child(1){background:#ff5f57}
.hv-titlebar i:nth-child(2){background:#febc2e}
.hv-titlebar i:nth-child(3){background:#28c840}
.hv-body{padding:20px}
.hv-body h4{font-size:15px;margin-bottom:14px;color:var(--blue-900)}
.hv-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px}
.hv-metric{background:var(--blue-050);border-radius:10px;padding:12px;text-align:center}
.hv-metric .v{font-size:20px;font-weight:800;color:var(--blue-700)}
.hv-metric .l{font-size:11px;color:var(--gray-500);margin-top:2px}
.hv-bars{display:flex;align-items:flex-end;gap:8px;height:80px;margin-bottom:6px}
.hv-bars span{flex:1;background:linear-gradient(to top,var(--blue-400),var(--blue-600));border-radius:4px 4px 0 0;opacity:.85}
.hv-bars span:nth-child(1){height:40%}
.hv-bars span:nth-child(2){height:65%}
.hv-bars span:nth-child(3){height:50%}
.hv-bars span:nth-child(4){height:80%}
.hv-bars span:nth-child(5){height:70%}
.hv-bars span:nth-child(6){height:95%;background:linear-gradient(to top,var(--gold),var(--gold-light))}
.hv-labels{display:flex;gap:8px;font-size:10px;color:var(--gray-400);text-align:center}
.hv-labels span{flex:1}
.hv-float{
  position:absolute;background:#fff;border-radius:12px;padding:12px 16px;
  box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:10px;
  animation:float 4s ease-in-out infinite;
}
.hv-float-1{top:-20px;right:-10px}
.hv-float-2{bottom:20px;left:-24px;animation-delay:1.5s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* ============ 价值数据条 ============ */
.value-bar{padding:40px 0;background:var(--white);border-bottom:1px solid var(--gray-100)}
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.value-item{text-align:center;padding:8px 12px}
.value-item .num{font-size:38px;font-weight:900;color:var(--blue-700);line-height:1}
.value-item .num em{color:var(--gold);font-style:normal}
.value-item .lbl{font-size:14px;color:var(--gray-500);margin-top:8px}
.value-item .lbl strong{display:block;color:var(--gray-800);font-size:15px;font-weight:700}

/* ============ 卡片 ============ */
.card{
  background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius-md);
  padding:32px;transition:.35s var(--ease);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--blue-200)}

/* ============ 产品矩阵 ============ */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod-card{
  background:#fff;border:1px solid var(--gray-200);border-radius:var(--radius-md);
  padding:32px 28px;transition:.35s var(--ease);position:relative;overflow:hidden;
}
.prod-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--blue-600),var(--blue-400));
  transform:scaleX(0);transform-origin:left;transition:.4s var(--ease);
}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--blue-200)}
.prod-card:hover::before{transform:scaleX(1)}
.pc-icon{
  width:56px;height:56px;border-radius:14px;margin-bottom:18px;
  background:linear-gradient(135deg,var(--blue-100),var(--blue-050));
  display:flex;align-items:center;justify-content:center;font-size:26px;
}
.prod-card h3{font-size:19px;margin-bottom:10px;color:var(--gray-900)}
.prod-card p{font-size:14px;color:var(--gray-500);line-height:1.75;margin-bottom:16px}
.pc-link{display:inline-flex;align-items:center;gap:5px;font-size:14px;font-weight:600;color:var(--blue-600)}
.pc-link:hover{gap:9px}

/* ============ 解决方案 ============ */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sol-card{
  background:linear-gradient(160deg,var(--white),var(--blue-050));
  border:1px solid var(--gray-200);border-radius:var(--radius-md);padding:32px 28px;
  transition:.35s var(--ease);position:relative;
}
.sol-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--blue-300)}
.sol-card .ic{font-size:34px;margin-bottom:16px}
.sol-card h3{font-size:18px;margin-bottom:10px}
.sol-card p{font-size:14px;color:var(--gray-500);margin-bottom:16px;line-height:1.75}
.sol-card ul li{font-size:13px;color:var(--gray-600);padding:4px 0;display:flex;align-items:center;gap:8px}
.sol-card ul li::before{content:"✓";color:var(--blue-600);font-weight:700}

/* ============ 资讯 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius-md);
  overflow:hidden;transition:.35s var(--ease);
}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.nc-cover{
  height:180px;display:flex;align-items:center;justify-content:center;
  font-size:42px;position:relative;overflow:hidden;
}
.nc-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.15))}
.nc-body{padding:22px}
.nc-tag{display:inline-block;font-size:12px;color:var(--blue-600);background:var(--blue-100);padding:3px 10px;border-radius:20px;margin-bottom:10px}
.nc-body h3{font-size:16px;margin-bottom:10px;line-height:1.5;transition:.25s}
.news-card:hover .nc-body h3{color:var(--blue-600)}
.nc-meta{font-size:13px;color:var(--gray-400)}

/* ============ 留言表单 ============ */
.cta-band{
  background:linear-gradient(135deg,#0b2545,#13315c 50%,#1c4b82);
  border-radius:var(--radius-xl);padding:56px 48px;position:relative;overflow:hidden;
  text-align:center;color:#fff;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 50% 80% at 85% 50%,rgba(201,149,47,.2),transparent 60%);
}
.cta-band .container{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.75);font-size:16px;margin-bottom:28px}
.form-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:820px;margin:0 auto 14px}
.form-row input{
  padding:13px 18px;border-radius:10px;border:1px solid rgba(255,255,255,.25);
  background:rgba(255,255,255,.12);color:#fff;font-size:14px;transition:.25s;
}
.form-row input::placeholder{color:rgba(255,255,255,.55)}
.form-row input:focus{border-color:var(--gold-light);background:rgba(255,255,255,.2)}
.cta-band textarea{
  width:100%;max-width:820px;padding:13px 18px;border-radius:10px;
  border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.12);
  color:#fff;font-size:14px;min-height:80px;resize:vertical;margin-bottom:22px;
}
.cta-band textarea::placeholder{color:rgba(255,255,255,.55)}
.cta-band textarea:focus{border-color:var(--gold-light);background:rgba(255,255,255,.2)}

/* ============ 页脚 ============ */
.footer{background:var(--blue-900);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .logo-mark{background:linear-gradient(135deg,var(--blue-400),var(--blue-600))}
.footer-brand .logo-text strong{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;margin-top:16px;max-width:300px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;position:relative;padding-bottom:10px}
.footer-col h4::after{content:"";position:absolute;bottom:0;left:0;width:24px;height:2px;background:var(--gold)}
.footer-col ul li{padding:6px 0}
.footer-col ul li a{font-size:14px;color:rgba(255,255,255,.65)}
.footer-col ul li a:hover{color:#fff;padding-left:4px}
.footer-contact li{display:flex;gap:10px;font-size:14px;padding:7px 0;color:rgba(255,255,255,.7)}
.footer-contact li .ic{color:var(--gold-light);flex-shrink:0}
.footer-bottom{
  padding:24px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.45);
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
}
.footer-bottom a{color:rgba(255,255,255,.45)}
.footer-bottom a:hover{color:#fff}

/* ============ 悬浮客服 ============ */
.float-tools{position:fixed;right:18px;bottom:90px;z-index:90;display:flex;flex-direction:column;gap:10px}
.ft-btn{
  width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:20px;color:#fff;box-shadow:var(--shadow-md);transition:.3s;cursor:pointer;
}
.ft-btn:hover{transform:scale(1.12)}
.ft-qq{background:linear-gradient(135deg,#2a6fb5,#3b82d4)}
.ft-tel{background:linear-gradient(135deg,#16a34a,#22c55e)}
.ft-top{background:var(--blue-800);opacity:.85}
.ft-wechat{background:linear-gradient(135deg,#16a34a,#22c55e);position:relative}
.ft-wechat .tip{
  position:absolute;right:58px;top:50%;transform:translateY(-50%);
  background:#fff;color:var(--gray-800);padding:6px 12px;border-radius:8px;
  font-size:13px;white-space:nowrap;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.25s;
}
.ft-wechat:hover .tip{opacity:1;visibility:visible}

/* ============ 面包屑 ============ */
.breadcrumb{
  background:var(--blue-050);padding:16px 0;border-bottom:1px solid var(--gray-100);
}
.breadcrumb a{color:var(--blue-600);font-size:14px}
.breadcrumb span.sep{margin:0 8px;color:var(--gray-300);font-size:13px}
.breadcrumb span.current{color:var(--gray-500);font-size:14px}
.page-head{
  background:linear-gradient(135deg,#0b2545,#13315c 60%,#1c4b82);
  padding:72px 0 64px;position:relative;overflow:hidden;text-align:center;color:#fff;
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 80% at 50% -20%,rgba(201,149,47,.15),transparent 60%);
}
.page-head .container{position:relative;z-index:2}
.page-head h1{color:#fff;font-size:38px;font-weight:900;margin-bottom:14px}
.page-head p{color:rgba(255,255,255,.78);font-size:16px;max-width:620px;margin:0 auto}

/* ============ 产品页 Hero ============ */
.prod-hero{
  background:linear-gradient(135deg,#f2f8ff,#e8f2fc);padding:64px 0;
  border-bottom:1px solid var(--gray-100);
}
.prod-hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.ph-icon{
  width:72px;height:72px;border-radius:18px;display:flex;align-items:center;justify-content:center;
  font-size:34px;background:linear-gradient(135deg,var(--blue-600),var(--blue-700));
  color:#fff;box-shadow:var(--shadow-blue);margin-bottom:22px;
}
.prod-hero h1{font-size:38px;font-weight:900;color:var(--gray-900);margin-bottom:16px;letter-spacing:-.5px}
.prod-hero .sub{font-size:17px;color:var(--gray-500);margin-bottom:28px;line-height:1.8}
.prod-hero .mockup{
  background:#fff;border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-lg);
  border:1px solid var(--gray-100);
}
.mockup-bar{display:flex;gap:6px;padding-bottom:16px;border-bottom:1px solid var(--gray-100);margin-bottom:20px}
.mockup-bar i{width:10px;height:10px;border-radius:50%;background:var(--gray-200)}
.mockup-bar i:nth-child(1){background:#ff5f57}
.mockup-bar i:nth-child(2){background:#febc2e}
.mockup-bar i:nth-child(3){background:#28c840}
.mockup-title{font-size:13px;color:var(--gray-400);margin-left:auto}
.mockup-stat{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:20px}
.mockup-stat div{background:var(--blue-050);border-radius:10px;padding:14px;text-align:center}
.mockup-stat .v{font-size:22px;font-weight:800;color:var(--blue-700)}
.mockup-stat .l{font-size:11px;color:var(--gray-500);margin-top:3px}
.mockup-chart{height:120px;display:flex;align-items:flex-end;gap:12px;padding:0 8px}
.mockup-chart span{flex:1;background:linear-gradient(to top,var(--blue-400),var(--blue-600));border-radius:6px 6px 0 0}
.mockup-chart span:nth-child(odd){height:55%}
.mockup-chart span:nth-child(even){height:78%}
.mockup-chart span:last-child{height:92%;background:linear-gradient(to top,var(--gold),var(--gold-light))}

/* ============ 功能列表 ============ */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feat-item{display:flex;gap:16px;align-items:flex-start}
.feat-ico{
  width:48px;height:48px;border-radius:12px;flex-shrink:0;
  background:var(--blue-100);display:flex;align-items:center;justify-content:center;
  font-size:22px;color:var(--blue-700);
}
.feat-item h4{font-size:17px;margin-bottom:6px;color:var(--gray-900)}
.feat-item p{font-size:14px;color:var(--gray-500);line-height:1.75}

/* ============ Tab ============ */
.tab-nav{display:flex;justify-content:center;gap:8px;margin-bottom:40px;flex-wrap:wrap}
.tab-btn{
  padding:10px 24px;border-radius:30px;font-size:14px;font-weight:600;
  color:var(--gray-600);background:var(--white);border:1px solid var(--gray-200);transition:.25s;
}
.tab-btn:hover{color:var(--blue-600);border-color:var(--blue-300)}
.tab-btn.active{background:var(--blue-600);color:#fff;border-color:var(--blue-600)}
.tab-panel{display:none}
.tab-panel.active{display:block;animation:fadeIn .4s}
@keyframes fadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:32px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--blue-200)}
.tl-item{position:relative;padding-bottom:28px}
.tl-item::before{
  content:"";position:absolute;left:-31px;top:4px;width:16px;height:16px;border-radius:50%;
  background:var(--blue-600);border:3px solid var(--blue-100);
}
.tl-item h4{font-size:16px;color:var(--gray-900);margin-bottom:4px}
.tl-item p{font-size:14px;color:var(--gray-500)}

/* ============ 步骤条 ============ */
.steps{display:flex;align-items:stretch;gap:0;margin-top:16px}
.step-item{flex:1;position:relative;text-align:center;padding:0 12px}
.step-item::after{
  content:"";position:absolute;top:22px;left:calc(50% + 24px);right:calc(-50% + 24px);
  height:2px;background:var(--blue-200);
}
.step-item:last-child::after{display:none}
.step-num{
  width:44px;height:44px;border-radius:50%;margin:0 auto 12px;
  background:var(--blue-600);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;box-shadow:var(--shadow-blue);position:relative;z-index:2;
}
.step-item h4{font-size:15px;margin-bottom:4px}
.step-item p{font-size:13px;color:var(--gray-500)}

/* ============ 案例 ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-card{background:#fff;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--gray-100);transition:.35s}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.case-cover{height:180px;display:flex;align-items:center;justify-content:center;font-size:44px;position:relative}
.case-body{padding:24px}
.case-body h3{font-size:18px;margin-bottom:8px}
.case-body p{font-size:14px;color:var(--gray-500);line-height:1.75;margin-bottom:14px}
.case-tags{display:flex;gap:8px;flex-wrap:wrap}
.case-tags span{font-size:12px;color:var(--blue-700);background:var(--blue-100);padding:3px 10px;border-radius:20px}
.review-card{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius-md);padding:28px;position:relative}
.review-card::before{content:""";font-size:60px;color:var(--blue-100);position:absolute;top:12px;left:20px;font-family:Georgia,serif;line-height:1}
.review-card p{font-size:14px;color:var(--gray-600);line-height:1.85;margin-bottom:18px;position:relative;z-index:2}
.review-author{display:flex;align-items:center;gap:12px;border-top:1px solid var(--gray-100);padding-top:14px}
.ra-avatar{width:42px;height:42px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff}
.ra-info strong{display:block;font-size:14px;color:var(--gray-900)}
.ra-info span{font-size:13px;color:var(--gray-400)}

/* ============ 联系 ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.info-card{background:var(--white);border:1px solid var(--gray-100);border-radius:var(--radius-md);padding:32px}
.info-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--gray-100)}
.info-item:last-child{border-bottom:none}
.info-item .ic{width:44px;height:44px;border-radius:12px;flex-shrink:0;background:var(--blue-100);color:var(--blue-700);display:flex;align-items:center;justify-content:center;font-size:20px}
.info-item .txt strong{display:block;font-size:15px;color:var(--gray-900);margin-bottom:2px}
.info-item .txt span,a{font-size:14px;color:var(--gray-500);line-height:1.7}
.form-card{background:var(--white);border:1px solid var(--gray-100);border-radius:var(--radius-md);padding:32px}
.form-card h3{font-size:20px;margin-bottom:20px}
.f-row{margin-bottom:16px}
.f-row label{display:block;font-size:14px;font-weight:600;color:var(--gray-700);margin-bottom:6px}
.f-row input,.f-row select,.f-row textarea{
  width:100%;padding:12px 16px;border-radius:10px;border:1px solid var(--gray-200);
  font-size:14px;color:var(--gray-800);background:var(--white);transition:.25s;
}
.f-row input:focus,.f-row select:focus,.f-row textarea:focus{border-color:var(--blue-500);box-shadow:0 0 0 3px rgba(59,130,212,.12)}
.f-row textarea{min-height:100px;resize:vertical}
.f-row.f-half{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* ============ 动画 ============ */
.fade-up{opacity:0;transform:translateY(28px);transition:.6s var(--ease)}
.fade-up.in{opacity:1;transform:translateY(0)}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}

/* ============ 响应式 ============ */
@media(max-width:1024px){
  .nav-menu{display:none}
  .nav-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:38px}
  .hero-visual{order:-1}
  .value-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .prod-grid,.sol-grid,.news-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
  .feat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
  .dropdown{min-width:auto;width:100%;position:static;box-shadow:none;border:none;padding:0}
  .dropdown-grid{grid-template-columns:1fr}
  .prod-hero-grid,.contact-grid{grid-template-columns:1fr;gap:32px}
  .prod-hero .mockup{order:-1}
}
@media(max-width:640px){
  section{padding:52px 0}
  .sec-title{font-size:26px}
  .hero{padding:56px 0 48px}
  .hero h1{font-size:30px}
  .hero-stats{gap:24px}
  .hero-stat .num{font-size:26px}
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .value-item .num{font-size:30px}
  .prod-grid,.sol-grid,.news-grid,.case-grid,.feat-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .steps{flex-direction:column;gap:16px}
  .step-item::after{display:none}
  .cta-band{padding:36px 22px;border-radius:var(--radius-lg)}
  .cta-band h2{font-size:22px}
  .topbar{display:none}
  .page-head h1{font-size:28px}
  .prod-hero h1{font-size:28px}
  .float-tools{right:10px;bottom:20px}
  .ft-btn{width:42px;height:42px;font-size:18px}
}