/* ============================================================
   耀强科技 · 官网样式
   设计：现代 SaaS，蓝(#2563eb) + 橙(#f97316) 品牌色
   ============================================================ */

:root{
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --accent:#f97316;
  --accent-dark:#ea580c;
  --ink:#0f172a;
  --text:#1e293b;
  --muted:#64748b;
  --bg:#ffffff;
  --soft:#f8fafc;
  --line:#e2e8f0;
  --radius:16px;
  --shadow:0 10px 30px rgba(15,23,42,.08);
  --shadow-lg:0 20px 50px rgba(15,23,42,.14);
  --max:1140px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
  cursor:pointer;border:2px solid transparent;transition:.2s ease;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(249,115,22,.45)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.12)}

/* ===== 顶部导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.0);transition:.3s ease;
}
.site-header.scrolled{
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  box-shadow:0 1px 0 var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:#fff;transition:.3s}
.site-header.scrolled .brand{color:var(--ink)}
.brand-mark{
  width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;font-weight:800;font-size:14px;letter-spacing:.5px;
}
.brand-logo{height:34px;width:auto;object-fit:contain;border-radius:6px}
.footer-logo{height:48px;margin-bottom:4px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{font-size:15px;font-weight:500;color:rgba(255,255,255,.92);transition:.2s}
.site-header.scrolled .nav-links a{color:var(--text)}
.nav-links a:hover{color:var(--accent)}
.nav-cta{
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:#fff !important;padding:9px 20px;border-radius:999px;font-weight:600;
  box-shadow:0 6px 16px rgba(249,115,22,.35);
}
.nav-cta:hover{transform:translateY(-1px)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.site-header.scrolled .nav-toggle span{background:var(--ink)}

/* ===== Hero ===== */
.hero{position:relative;padding:150px 0 60px;overflow:hidden;color:#fff}
.hero-bg{
  position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(900px 500px at 80% -10%,rgba(249,115,22,.35),transparent 60%),
    radial-gradient(800px 600px at 10% 10%,rgba(37,99,235,.55),transparent 60%),
    linear-gradient(160deg,#0b1220,#0f1f3d 60%,#102a52);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(circle at 50% 30%,#000,transparent 75%);
}
.hero-inner{text-align:center;max-width:860px;margin:0 auto}
.badge{
  display:inline-block;padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);
  font-size:14px;font-weight:600;letter-spacing:.5px;margin-bottom:22px;
}
.hero-title{font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.25;letter-spacing:-.5px}
.grad-text{
  background:linear-gradient(120deg,#ffd29a,var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin:22px auto 30px;max-width:660px;font-size:17px;color:rgba(255,255,255,.85)}
.hero-sub strong{color:#fff}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-note{margin-top:18px;font-size:14px;color:rgba(255,255,255,.7)}

/* Hero 仪表盘示意 */
.hero-shot{margin:54px auto 0;max-width:760px}
.dash{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:18px;padding:18px;backdrop-filter:blur(8px);box-shadow:var(--shadow-lg);
  text-align:left;
}
.dash-top{display:flex;align-items:center;gap:7px;margin-bottom:16px}
.dash-top .dot{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,.35)}
.dash-top .dot:first-child{background:#ff5f57}
.dash-top .dash-title{margin-left:auto;font-size:13px;color:rgba(255,255,255,.7)}
.dash-body{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
.dash-card{
  background:rgba(255,255,255,.08);border-radius:12px;padding:14px;
  display:flex;flex-direction:column;gap:4px;
}
.dash-label{font-size:12px;color:rgba(255,255,255,.65)}
.dash-num{font-size:26px;font-weight:800;color:#fff}
.dash-num small{font-size:15px}
.dash-trend{font-size:12px;font-weight:600}
.dash-trend.up{color:#4ade80}
.dash-trend.down{color:#fbbf24}
.dash-chart{display:flex;align-items:flex-end;gap:10px;height:90px;padding:0 6px}
.dash-chart span{flex:1;background:linear-gradient(180deg,var(--accent),var(--primary));border-radius:6px 6px 0 0;opacity:.85}

/* ===== 信任数据条 ===== */
.stats{background:var(--ink);color:#fff;padding:46px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat-num{display:block;font-size:clamp(28px,4vw,40px);font-weight:800;
  background:linear-gradient(120deg,#ffd29a,var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.stat-label{font-size:13px;color:rgba(255,255,255,.6)}

/* ===== 通用区块 ===== */
.section{padding:88px 0}
.section-soft{background:var(--soft)}
.section-head{max-width:680px;margin:0 auto 50px;text-align:center}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.5px;
  text-transform:uppercase;color:var(--accent);margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,3.4vw,36px);font-weight:800;color:var(--ink);line-height:1.3}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}

/* 卡片网格 */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;transition:.25s ease;box-shadow:var(--shadow);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(37,99,235,.3)}
.card-ico{
  width:54px;height:54px;border-radius:14px;display:grid;place-items:center;
  font-size:26px;background:linear-gradient(135deg,rgba(37,99,235,.12),rgba(249,115,22,.12));
  margin-bottom:18px;
}
.card h3{font-size:18px;color:var(--ink);margin-bottom:10px}
.card p{font-size:14.5px;color:var(--muted)}

/* 功能列表 */
.features{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.feature{
  display:flex;gap:18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;transition:.25s;box-shadow:var(--shadow);
}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.feature-no{
  flex:none;width:48px;height:48px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;color:#fff;font-size:18px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
}
.feature h3{font-size:18px;color:var(--ink);margin-bottom:8px}
.feature p{font-size:14.5px;color:var(--muted)}

/* 适用客户 */
.persona{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;box-shadow:var(--shadow);transition:.25s;position:relative;overflow:hidden;
}
.persona::before{
  content:"";position:absolute;left:0;top:0;height:4px;width:100%;
  background:linear-gradient(90deg,var(--primary),var(--accent));
}
.persona:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.persona h3{font-size:20px;color:var(--ink);margin-bottom:12px}
.persona p{font-size:15px;color:var(--muted)}

/* 关于我们 */
.about{display:grid;grid-template-columns:1.3fr .9fr;gap:50px;align-items:center}
.about-text h2{font-size:clamp(22px,3vw,32px);color:var(--ink);margin:12px 0 18px;line-height:1.35}
.about-text p{color:var(--muted);margin-bottom:14px}
.about-list{list-style:none;margin-top:18px;display:grid;gap:10px}
.about-list li{color:var(--text);font-weight:500}
.about-card{
  background:linear-gradient(150deg,var(--primary),var(--primary-dark));
  color:#fff;border-radius:22px;padding:40px 32px;box-shadow:var(--shadow-lg);
}
.about-card-quote{font-size:22px;font-weight:700;line-height:1.5}
.about-card-by{margin-top:18px;opacity:.8;font-size:14px}

/* ===== CTA ===== */
.cta{
  background:
    radial-gradient(700px 400px at 85% 0%,rgba(249,115,22,.35),transparent 60%),
    linear-gradient(150deg,#0b1220,#102a52);
  color:#fff;padding:84px 0;text-align:center;
}
.cta h2{font-size:clamp(24px,3.4vw,36px);font-weight:800}
.cta p{max-width:560px;margin:16px auto 28px;color:rgba(255,255,255,.82);font-size:16px}
.cta-form{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;max-width:620px;margin:0 auto}
.cta-form input{
  flex:1;min-width:200px;padding:14px 18px;border-radius:999px;border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.1);color:#fff;font-size:15px;outline:none;
}
.cta-form input::placeholder{color:rgba(255,255,255,.6)}
.cta-form input:focus{border-color:var(--accent);background:rgba(255,255,255,.16)}
.cta-tip{margin-top:16px;font-size:13px;color:rgba(255,255,255,.6)}
.cta-contact{margin-top:26px;display:flex;gap:24px;justify-content:center;flex-wrap:wrap;font-size:14px;color:rgba(255,255,255,.8)}

/* ===== 页脚 ===== */
.site-footer{background:#0a0f1c;color:rgba(255,255,255,.7);padding:54px 0 26px}
.footer-inner{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .brand-mark{margin-bottom:12px}
.footer-brand .brand-name{color:#fff;font-weight:800;font-size:18px;margin-left:0}
.footer-brand p{margin-top:10px;font-size:14px;max-width:280px}
.footer-links{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-start}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);transition:.2s}
.footer-links a:hover{color:var(--accent)}
.footer-contact{display:flex;flex-wrap:wrap;gap:16px 28px;margin-top:16px;font-size:14px;color:rgba(255,255,255,.75)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding-top:20px;font-size:13px;color:rgba(255,255,255,.45)}

/* 解决方案网格（6项，3列2行） */
.grid-6{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.solution{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;display:flex;flex-direction:column;gap:12px;
  transition:.25s ease;box-shadow:var(--shadow);
}
.solution:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(37,99,235,.3)}
.solution-ico{
  width:54px;height:54px;border-radius:14px;display:grid;place-items:center;
  font-size:26px;background:linear-gradient(135deg,rgba(37,99,235,.12),rgba(249,115,22,.12));
}
.solution h3{font-size:18px;color:var(--ink)}
.solution p{font-size:14.5px;color:var(--muted);flex:1}
.solution .more{margin-top:4px;font-weight:600;font-size:14px;color:var(--accent)}
.solution .more:hover{color:var(--accent-dark)}

/* 获客品类网格（8类，4列2行） */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cat{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 18px;display:flex;flex-direction:column;align-items:center;gap:12px;
  text-align:center;transition:.25s ease;box-shadow:var(--shadow);
}
.cat:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(249,115,22,.35)}
.cat-ico{
  width:60px;height:60px;border-radius:16px;display:grid;place-items:center;font-size:30px;
  background:linear-gradient(135deg,rgba(37,99,235,.1),rgba(249,115,22,.1));
}
.cat-name{font-size:16px;font-weight:600;color:var(--ink)}

/* 客户案例 / 合作伙伴 logo 墙 */
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.logo-cell{
  aspect-ratio:16/9;display:grid;place-items:center;border-radius:14px;
  background:#fff;border:1px solid var(--line);color:var(--muted);
  font-size:14px;font-weight:600;letter-spacing:.5px;box-shadow:var(--shadow);
  transition:.25s ease;
}
.logo-cell:hover{border-color:rgba(37,99,235,.35);color:var(--primary);transform:translateY(-3px)}
.logo-note{margin-top:18px;text-align:center;font-size:13px;color:var(--muted)}

/* ===== 滚动入场动画 ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media (max-width:960px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-6{grid-template-columns:repeat(2,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
  .about{grid-template-columns:1fr;gap:30px}
}
@media (max-width:760px){
  .nav-links{
    position:fixed;top:68px;right:0;left:0;flex-direction:column;align-items:stretch;
    gap:0;background:#fff;padding:10px 20px 20px;box-shadow:var(--shadow);
    transform:translateY(-130%);transition:.3s ease;
  }
  .nav-links.open{transform:none}
  .nav-links a{color:var(--text)!important;padding:14px 6px;border-bottom:1px solid var(--line)}
  .nav-cta{margin-top:12px;text-align:center}
  .nav-toggle{display:flex}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 16px}
  .features{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .section{padding:64px 0}
  .hero{padding:120px 0 40px}
}
@media (max-width:480px){
  .grid-4{grid-template-columns:1fr}
  .grid-6{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:repeat(2,1fr)}
  .dash-body{grid-template-columns:1fr}
  .hero-actions .btn{flex:1}
}

/* ===== 二维码弹窗 ===== */
.qrcode-modal{position:fixed;inset:0;z-index:9999;display:none;align-items:center;justify-content:center}
.qrcode-modal.show{display:flex}
.qrcode-overlay{position:absolute;inset:0;background:rgba(0,0,0,.55)}
.qrcode-box{position:relative;background:#fff;border-radius:16px;padding:32px 28px 24px;text-align:center;max-width:360px;width:90%;box-shadow:0 20px 60px rgba(0,0,0,.25);animation:qrcodeIn .25s ease;display:flex;flex-direction:column;align-items:center}
@keyframes qrcodeIn{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:none}}
.qrcode-close{position:absolute;top:10px;right:14px;background:none;border:none;font-size:24px;color:#999;cursor:pointer;line-height:1;padding:4px 8px}
.qrcode-close:hover{color:#333}
.qrcode-box h3{margin:0 0 12px;font-size:18px;color:var(--text-dark)}
.qrcode-box img{width:220px;height:auto;border-radius:8px;margin:0 auto 10px;display:block}
.qrcode-box p{margin:0;font-size:13px;color:var(--text-muted)}