:root{
  --primary:#2f5cff;
  --primary-dark:#1d3fdb;
  --primary-soft:#e8eeff;
  --primary-line:#c8d6ff;
  --ink:#111827;
  --ink-2:#1a1f2e;
  --body:#5a6278;
  --muted:#8a92a8;
  --muted-dark:#8a94a8;
  --bg:#f5f7fc;
  --white:#ffffff;
  --line:#e8ecf4;
  --line-soft:#edf1f8;
  --radius-md:10px;
  --radius-lg:14px;
  --radius-xl:18px;
  --pad-x:40px;
  --pad-y:72px;
  --gap:20px;
}
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg);
  color:var(--body);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3{margin:0;color:var(--ink);font-weight:800;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1280px;margin:0 auto;padding:0 var(--pad-x);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 24px;border-radius:var(--radius-md);
  font-size:15px;font-weight:700;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,background-color .15s ease,border-color .15s ease;
}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 8px 20px rgba(47,92,255,.26);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(47,92,255,.34);}
.btn-ghost{background:var(--white);color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--primary-line);color:var(--primary);}

/* ---------- Sticky topbar ---------- */
.topbar{
  position:sticky;top:0;z-index:50;height:64px;
  background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);
  box-shadow:0 1px 8px rgba(17,24,39,.04);
  backdrop-filter:saturate(180%) blur(8px);
}
.topbar-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);font-size:17px;}
.logo-mark{
  width:30px;height:30px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;font-size:15px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.nav{display:flex;align-items:center;gap:28px;}
.nav a{font-size:15px;color:var(--body);transition:color .15s ease;}
.nav a:hover{color:var(--primary);}
.topbar-actions{display:flex;align-items:center;gap:16px;}
.login{font-size:15px;color:var(--body);}
.login:hover{color:var(--primary);}
.topbar .btn{height:40px;padding:0 18px;font-size:14px;}

/* ---------- Hero ---------- */
.hero{padding:var(--pad-y) 0 64px;}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--primary-soft);border:1px solid var(--primary-line);
  color:var(--primary-dark);font-size:13px;font-weight:600;
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--primary);animation:breathe 1.8s ease-in-out infinite;}
@keyframes breathe{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.82);}}
h1{
  margin-top:18px;
  font-size:40px;line-height:1.22;letter-spacing:-1px;color:var(--ink-2);
}
h1 .grad{
  background:linear-gradient(135deg,var(--primary),#6b8cff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:18px;max-width:520px;font-size:16px;line-height:1.7;color:var(--body);}
.hero-cta{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;}
.hero-note{margin-top:14px;font-size:13px;color:var(--muted);}

.dash{
  background:var(--white);border-radius:var(--radius-xl);
  padding:24px;border:1px solid var(--line);
  box-shadow:0 24px 48px rgba(17,24,39,.08),0 2px 6px rgba(17,24,39,.04);
}
.dash-head{display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:700;color:var(--ink);}
.dash-live{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:500;color:var(--muted);}
.dash-grid{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.dash-item{background:var(--bg);border-radius:12px;padding:14px 16px;}
.dash-label{font-size:12px;color:var(--muted);}
.dash-value{margin-top:6px;font-size:22px;font-weight:800;color:var(--ink);line-height:1.2;}
.dash-trend{margin-top:4px;font-size:12px;color:#12a67a;font-weight:600;}
.dash-foot{display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line-soft);}
.avatars{display:flex;}
.avatars span{
  width:26px;height:26px;border-radius:50%;border:2px solid #fff;margin-left:-8px;
  background:linear-gradient(135deg,#9ab4ff,#5b83ff);
}
.avatars span:first-child{margin-left:0;background:linear-gradient(135deg,#ffcf8b,#ffab49);}
.avatars span:nth-child(2){background:linear-gradient(135deg,#9ee7c9,#4bc79a);}
.avatars span:nth-child(3){background:linear-gradient(135deg,#c9b6ff,#8d6bff);}
.dash-foot-text{font-size:12px;color:var(--muted);}

/* ---------- Section common ---------- */
.section{padding:var(--pad-y) 0;}
.section-head{max-width:640px;margin:0 auto 48px;text-align:center;}
.section-head h2{font-size:32px;letter-spacing:-.8px;line-height:1.3;}
.section-head p{margin-top:14px;font-size:15px;line-height:1.7;color:var(--body);}
.modules .section-head{margin-bottom:40px;}

/* ---------- Feature grid ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 26px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-3px);border-color:var(--primary-line);box-shadow:0 14px 30px rgba(47,92,255,.12);}
.card-icon{
  width:46px;height:46px;border-radius:12px;font-size:22px;
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.icon-blue{background:#e8eeff;}
.icon-green{background:#e4f7ef;}
.icon-orange{background:#fdf0e2;}
.icon-purple{background:#f0ebff;}
.icon-cyan{background:#e2f6fa;}
.icon-pink{background:#fdeaf1;}
.card h3{font-size:17px;font-weight:700;line-height:1.4;}
.card p{margin-top:8px;font-size:14px;line-height:1.65;color:var(--body);}

/* ---------- Stats band ---------- */
.stats{background:var(--ink);padding:56px 0;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center;}
.stat-num{font-size:36px;font-weight:800;color:#fff;line-height:1.1;}
.stat-num small{font-size:18px;font-weight:700;color:var(--muted-dark);margin-left:2px;}
.stat-label{margin-top:8px;font-size:14px;color:var(--muted-dark);}

/* ---------- Trust modules ---------- */
.module-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;}
.module{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-xl);
  padding:32px;margin-bottom:24px;
}
.module-grid .module{margin-bottom:0;}
.module.alt{background:var(--bg);}
.module h3{font-size:20px;line-height:1.4;}
.module p{margin-top:12px;font-size:15px;line-height:1.7;color:var(--body);}
.tags{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px;}
.tags span{
  font-size:13px;color:var(--primary-dark);background:var(--primary-soft);
  border-radius:999px;padding:5px 12px;
}
.module-visual{
  height:100%;min-height:150px;border-radius:var(--radius-lg);
  background:linear-gradient(135deg,#eef3ff,#dde7ff);border:1px solid var(--primary-line);
  display:flex;align-items:center;justify-content:center;font-size:40px;
}

/* ---------- FAQ ---------- */
.faq{max-width:800px;margin:0 auto;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:10px;
  padding:0 20px;margin-bottom:12px;
}
.faq-item summary{
  cursor:pointer;list-style:none;padding:16px 0;
  font-size:15px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:20px;font-weight:500;color:var(--muted);line-height:1;}
.faq-item[open] summary{border-bottom:1px solid var(--line-soft);}
.faq-item[open] summary::after{content:"−";}
.faq-item p{padding:14px 0 16px;font-size:14px;line-height:1.7;color:var(--body);}

/* ---------- Footer ---------- */
.site-footer{background:var(--white);border-top:1px solid var(--line-soft);padding:40px 0 36px;text-align:center;}
.footer-line{font-size:14px;color:var(--body);}
.footer-line strong{color:var(--ink);}
.footer-meta{margin-top:10px;font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;justify-content:center;gap:6px 14px;}
.footer-meta a:hover{color:var(--primary);}
.footer-links{margin-top:16px;display:flex;flex-wrap:wrap;justify-content:center;gap:8px 20px;font-size:13px;}
.footer-links a{color:var(--muted);}
.footer-links a:hover{color:var(--primary);}

/* ---------- Responsive ---------- */
@media (max-width:1200px){
  .feature-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:960px){
  :root{--pad-x:24px;--pad-y:56px;}
  .hero{padding-bottom:48px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-sub{max-width:none;}
  h1{font-size:32px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 24px;}
  .module-grid{grid-template-columns:1fr;}
  .module{padding:26px;}
  .module-visual{display:none;}
  .section-head h2{font-size:28px;}
}
@media (max-width:640px){
  :root{--pad-x:16px;--pad-y:48px;}
  .nav{display:none;}
  .topbar-actions .login{display:none;}
  h1{font-size:28px;letter-spacing:-.5px;}
  .hero{padding-bottom:40px;}
  .feature-grid{grid-template-columns:1fr;}
  .card{padding:24px 20px;}
  .stats-grid{gap:24px 16px;}
  .stat-num{font-size:28px;}
  .section-head h2{font-size:24px;}
  .dash{padding:18px;}
  .dash-value{font-size:19px;}
}


/* ---------- News grid (homepage) ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.news-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-card:hover{transform:translateY(-3px);border-color:var(--primary-line);box-shadow:0 14px 30px rgba(47,92,255,.12);}
.news-date{font-size:12px;color:var(--muted);}
.news-card h3{margin-top:10px;font-size:16px;line-height:1.5;font-weight:700;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a:hover{color:var(--primary);}
.news-excerpt{margin-top:10px;font-size:14px;line-height:1.65;color:var(--body);flex:1;}
.news-more-row{margin-top:32px;text-align:center;}

/* ---------- News list page ---------- */
.news-list{max-width:900px;margin:0 auto;}
.news-list-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px 26px;margin-bottom:14px;transition:border-color .18s ease,box-shadow .18s ease;
}
.news-list-item:hover{border-color:var(--primary-line);box-shadow:0 10px 24px rgba(47,92,255,.1);}
.news-list-item h2{margin:6px 0 0;font-size:18px;font-weight:700;line-height:1.5;}
.news-list-item h2 a{color:var(--ink);}
.news-list-item h2 a:hover{color:var(--primary);}
.news-list-item p{margin-top:8px;font-size:14px;line-height:1.65;color:var(--body);}

/* ---------- Article page ---------- */
.article{max-width:800px;margin:0 auto;padding:40px 0 64px;}
.breadcrumb{font-size:13px;color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.article h1{margin-top:14px;font-size:32px;line-height:1.3;letter-spacing:-.6px;}
.article-meta{margin-top:12px;font-size:13px;color:var(--muted);}
.article-body{margin-top:24px;font-size:16px;line-height:1.85;color:#39405a;}
.article-body h2{margin:32px 0 12px;font-size:22px;line-height:1.4;}
.article-body p{margin:0 0 16px;}
.article-body ul{margin:0 0 16px;padding-left:22px;list-style:disc;}
.article-body li{margin-bottom:8px;}
.article-cta{
  margin-top:36px;padding:26px;text-align:center;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
}
.article-cta p{font-size:14px;color:var(--body);}
.article-cta .btn{margin-top:14px;}
.related{margin-top:40px;}
.related h2{font-size:20px;}
.related ul{margin-top:12px;}
.related li{padding:12px 0;border-bottom:1px solid var(--line-soft);font-size:15px;}
.related li:last-child{border-bottom:0;}
.related a{color:var(--ink);}
.related a:hover{color:var(--primary);}

@media (max-width:1200px){
  .news-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:640px){
  .news-grid{grid-template-columns:1fr;}
  .article{padding:28px 0 48px;}
  .article h1{font-size:26px;}
  .article-body{font-size:15px;}
  .article-body h2{font-size:20px;}
}