*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#ffffff;--bg-white:#ffffff;
  --border:#e2e8f0;--border-color:#e2e8f0;--border-light:#edf2f7;--border-hover:#cbd5e1;
  --text:#0b1220;--text-sec:#475569;--text-muted:#94a3b8;--text-secondary:#64748b;
  --primary:#2563eb;--primary-hover:#1d4ed8;--primary-light:#eff6ff;--primary-subtle:rgba(37,99,235,.04);
  --success:#10b981;--success-light:#ecfdf5;
  --warning:#f59e0b;--warning-light:#fffbeb;
  --purple:#8b5cf6;--purple-light:#f5f3ff;
  --radius:18px;--radius-sm:12px;
  --shadow:0 1px 3px rgba(15,23,42,.04),0 1px 2px rgba(15,23,42,.02);
  --shadow-sm:0 1px 3px rgba(15,23,42,.04),0 1px 2px rgba(15,23,42,.02);
  --shadow-md:0 18px 42px rgba(15,23,42,.08),0 4px 14px rgba(15,23,42,.05);
  --gradient:linear-gradient(135deg,#2563EB,#6366F1);
}

html{scroll-behavior:smooth;overflow-x:hidden}
body{
  font-family:'DM Sans','Noto Sans SC',sans-serif;
  background:#fff;
  color:var(--text);
  min-height:100vh;line-height:1.64;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  padding-top:68px;
}
a{text-decoration:none;color:inherit}ul{list-style:none}img{max-width:100%;height:auto}

.container{max-width:1240px;margin:0 auto;padding:0 40px}
.alt-bg{background:#fff}

header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  max-width:1240px;margin:0 auto;padding:0 40px;
  height:68px;display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  overflow:hidden;
  display:flex;align-items:center;justify-content:center;
  position:relative;
}
.brand-mark img{height:auto;max-height:50px;width:auto;object-fit:contain}
.brand-text{font-weight:700;font-size:18px;color:var(--text);letter-spacing:-.3px}
.brand-sub{font-size:11px;font-weight:500;color:var(--text-muted);letter-spacing:1px}

.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  padding:8px 18px;border-radius:8px;
  color:var(--text-sec);font-size:14px;font-weight:500;
  transition:all .2s;
}
.nav-links a:hover{color:var(--primary);background:var(--primary-light)}
.nav-links a.active{color:var(--primary);background:var(--primary-light);font-weight:600}
.header-actions{display:flex;align-items:center;gap:10px}

.btn{padding:9px 22px;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:all .25s;font-family:inherit;border:none;display:inline-block}
.btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--text-sec)}
.btn-outline:hover{border-color:var(--border-hover);color:var(--text)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 14px rgba(37,99,235,.3)}
.btn-primary-lg{padding:15px 40px;background:var(--primary);color:#fff;border-radius:8px;font-size:16px;font-weight:700;transition:all .3s}
.btn-primary-lg:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 8px 24px rgba(37,99,235,.35)}
.btn-secondary-lg{padding:15px 40px;border:1.5px solid var(--border);color:var(--text-sec);background:var(--bg-white);border-radius:8px;font-size:16px;font-weight:500;transition:all .3s}
.btn-secondary-lg:hover{border-color:var(--primary);color:var(--primary)}

.v-icon{display:inline-block;width:1em;height:1em;vertical-align:-.125em;flex-shrink:0}
.brand-mark .v-icon{width:22px;height:22px}
.cat-icon .v-icon{width:32px;height:32px}
.feat-icon .v-icon{width:28px;height:28px}
.np-icon .v-icon{width:20px;height:20px}
.ci-icon .v-icon,.info-card-icon .v-icon{width:28px;height:28px}
.value-icon .v-icon{width:36px;height:36px}
.p-icon .v-icon{width:22px;height:22px}
.scene-icon .v-icon{width:32px;height:32px}
.adv-icon .v-icon{width:24px;height:24px}
.prod-icon .v-icon{width:40px;height:40px}
.type-icon .v-icon{width:36px;height:36px}
.hero-stat-icon .v-icon{width:20px;height:20px}
.ph-icon .v-icon{width:48px;height:48px}

.section-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;color:var(--primary);
  letter-spacing:1px;text-transform:uppercase;margin-bottom:16px;
}
.section-label::before{content:'';width:22px;height:2px;background:var(--primary);border-radius:1px}
.section-header{margin-bottom:48px}
.section-header h2{font-size:32px;font-weight:700;color:var(--text);margin-bottom:10px;letter-spacing:-.5px}
.section-header .highlight{color:var(--primary)}
.section-header p{font-size:16px;color:var(--text-muted);max-width:520px}

footer{
  position:relative;z-index:1;padding:64px 48px 32px;
  background:linear-gradient(180deg,#1e293b 0%,#162032 50%,#0f172a 100%);
  color:#94a3b8;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;
  gap:48px;max-width:1240px;margin:0 auto 40px;
}
.footer-col h4{font-size:14px;font-weight:700;color:#e2e8f0;margin-bottom:16px}
.footer-col p{font-size:13px;color:#94a3b8;line-height:1.8}
.footer-col a{display:block;font-size:13px;color:#94a3b8;padding:5px 0;transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(148,163,184,.12);
  padding-top:24px;max-width:1240px;margin:0 auto;text-align:center;
}
.footer-bottom p{font-size:12px;color:#94a3b8}
.footer-bottom a{color:#cbd5e1;transition:color .2s}
.footer-bottom a:hover{color:#60a5fa}

.back-to-top{
  position:fixed;bottom:36px;right:28px;z-index:99;
  width:42px;height:42px;border-radius:50%;
  background:#fff;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:16px;color:var(--text-muted);
  box-shadow:0 4px 14px rgba(0,0,0,.08);
  transition:all .3s;opacity:0;visibility:hidden;
}
.back-to-top.show{opacity:1;visibility:visible}
.back-to-top:hover{background:var(--primary);color:#fff;border-color:var(--primary)}

.breadcrumb{
  padding:86px 0 8px;font-size:13px;color:var(--text-muted);
  display:flex;align-items:center;gap:8px;
}
.breadcrumb a{color:var(--text-sec);transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}

.page-hero{
  padding:64px 0 56px;background:#fff;border-bottom:1px solid var(--border);
}
.page-hero .container{max-width:860px;margin:0 auto;text-align:center}
.page-hero h1{font-size:36px;font-weight:700;margin-bottom:12px;letter-spacing:-.5px}
.page-hero h1 .highlight{color:var(--primary)}
.page-hero p{font-size:16px;color:var(--text-sec);line-height:1.75;margin-bottom:28px}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .65s cubic-bezier(.25,.46,.45,.94),transform .65s cubic-bezier(.25,.46,.45,.94)}
.reveal.visible{opacity:1;transform:translateY(0)}

.hamburger-btn{display:none}
.mobile-nav{display:none}
body.mobile-nav-open{overflow:hidden}
@media(max-width:960px){
  body{padding-top:60px;background:#fff}
  .container{padding:0 20px}
  header{background:rgba(255,255,255,.88);box-shadow:0 10px 30px rgba(15,23,42,.06)}
  .header-inner{height:60px;padding:0 20px}
  .brand{gap:9px;min-width:0}
  .brand-mark img{max-height:38px}
  .brand-text{font-size:16px;line-height:1.15}
  .brand-sub{font-size:10px;letter-spacing:.6px}
  .nav-links,.header-actions{display:none}
  .hamburger-btn{
    width:42px;height:42px;border:0;border-radius:14px;background:linear-gradient(180deg,#fff,#f4f7ff);
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
    box-shadow:0 8px 22px rgba(37,99,235,.12),inset 0 0 0 1px rgba(37,99,235,.1);
    cursor:pointer;transition:transform .25s,box-shadow .25s;flex-shrink:0;
  }
  .hamburger-btn span{width:18px;height:2px;border-radius:999px;background:var(--text);transition:transform .25s,opacity .2s,background .25s}
  .hamburger-btn.active{box-shadow:0 10px 28px rgba(37,99,235,.2),inset 0 0 0 1px rgba(37,99,235,.18)}
  .hamburger-btn.active span:nth-child(1){transform:translateY(7px) rotate(45deg);background:var(--primary)}
  .hamburger-btn.active span:nth-child(2){opacity:0}
  .hamburger-btn.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);background:var(--primary)}
  .mobile-nav{
    position:fixed;left:14px;right:14px;top:72px;z-index:98;
    display:block;padding:14px;border-radius:24px;
    background:rgba(255,255,255,.94);border:1px solid rgba(226,232,240,.9);
    backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    box-shadow:0 24px 80px rgba(15,23,42,.18);
    opacity:0;visibility:hidden;transform:translateY(-12px) scale(.98);
    transition:opacity .25s,visibility .25s,transform .25s;
  }
  .mobile-nav.show{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
  .mobile-nav::before{content:'';position:fixed;inset:-90px -14px -100vh;background:rgba(15,23,42,.28);z-index:-1;backdrop-filter:blur(3px)}
  .mobile-nav .nav-links{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
  .mobile-nav .nav-links a{display:flex;align-items:center;justify-content:center;min-height:46px;padding:10px 12px;border-radius:14px;background:#f8fbff;color:var(--text-sec);font-size:14px;border:1px solid rgba(226,232,240,.8)}
  .mobile-nav .nav-links a.active{background:linear-gradient(135deg,#2563eb,#3b82f6);color:#fff;border-color:transparent;box-shadow:0 10px 22px rgba(37,99,235,.22)}
  .mobile-nav .header-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
  .mobile-nav .btn{width:100%;min-height:44px;padding:10px 12px;text-align:center;border-radius:14px}
  .section-header{margin-bottom:28px}
  .section-header h2{font-size:25px;line-height:1.24;letter-spacing:-.3px}
  .section-header p{font-size:14px;line-height:1.7}
  .section-label{font-size:11px;margin-bottom:12px}
  .page-hero{padding:38px 0 42px;background:#fff}
  .page-hero h1{font-size:30px;line-height:1.22}
  .page-hero p{font-size:14px;margin-bottom:22px}
  .breadcrumb{padding:24px 0 6px;font-size:12px;overflow-x:auto;white-space:nowrap}
  .btn-primary-lg,.btn-secondary-lg{width:100%;max-width:320px;text-align:center;padding:13px 22px;border-radius:14px;font-size:15px}
  footer{padding:46px 20px 28px;border-radius:0;margin-top:-1px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px 18px;margin-bottom:30px}
  .footer-grid .footer-col:first-child{grid-column:1/-1}
  .back-to-top{right:18px;bottom:22px;width:44px;height:44px;box-shadow:0 12px 30px rgba(15,23,42,.16)}
}
@media(max-width:640px){
  .container{padding:0 16px}
  .header-inner{padding:0 16px}
  .mobile-nav{left:10px;right:10px;top:68px;border-radius:22px;padding:12px}
  .mobile-nav .nav-links{grid-template-columns:1fr}
  .mobile-nav .nav-links a{justify-content:flex-start;padding:12px 14px;min-height:45px}
  .mobile-nav .header-actions{grid-template-columns:1fr}
  .section-header{text-align:left;margin-bottom:24px}
  .section-header h2{font-size:22px}
  .page-hero{padding:32px 0 36px}
  .page-hero h1{font-size:26px}
  .page-hero .container{text-align:left}
  .page-hero p{font-size:14px;line-height:1.75}
  .section-label::before{width:18px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-col a{padding:7px 0}
  .footer-bottom{text-align:left}
  .footer-particle-section{height:120px}
}

.count-up{min-width:10ch}

.footer-particle-section{
  position:relative;width:100%;height:180px;
  background:linear-gradient(180deg,#0F172A 0%,#020617 100%);
  overflow:hidden;display:flex;align-items:center;justify-content:center;
}
#footerParticleCanvas{
  position:absolute;top:0;left:0;width:100%;height:100%;cursor:default;
}

/* ========== 数据驱动决策区域样式 ========== */
.dashboard-section{
  padding:48px 24px;
}
.dashboard-section-title{
  text-align:center;margin-bottom:20px;
}
.dashboard-tag{
  display:inline-block;font-size:11px;color:var(--primary);font-weight:700;background:#EFF6FF;padding:4px 14px;border-radius:20px;margin-bottom:8px;letter-spacing:.05em;
}
.dashboard-section-title h2{
  font-size:20px;font-weight:700;color:var(--text);line-height:1.3;
}
.dashboard-disclaimer{
  font-size:10px;color:var(--text-muted);opacity:.5;margin-top:4px;text-align:center;
}
.stats-row{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:12px;
}
.stat-card{
  background:var(--bg-white);border:1px solid var(--border-color);border-radius:12px;padding:16px 8px 14px;text-align:center;box-shadow:var(--shadow-sm);transition:all .25s;cursor:pointer;
}
.stat-card:hover{
  transform:translateY(-3px);border-color:var(--primary);box-shadow:var(--shadow-md);
}
.stat-icon-wrap{
  width:36px;height:36px;margin:0 auto 10px;border-radius:50%;
  background:linear-gradient(135deg,#EFF6FF,#DBEAFE);border:1px solid rgba(37,99,235,.1);
  display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:15px;
}
.stat-value{
  font-size:17px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;
}
.stat-label{
  font-size:10px;color:var(--text-secondary);margin-top:4px;font-weight:600;
}
.stat-trend{
  display:inline-block;margin-top:4px;font-size:10px;font-weight:700;padding:2px 8px;border-radius:10px;
}
.stat-trend.up{
  color:#059669;background:rgba(5,150,105,.08);border:1px solid rgba(5,150,105,.15);
}
.chart-card{
  background:linear-gradient(135deg,#1E293B,#0F172A);padding:16px;border-radius:12px;box-shadow:var(--shadow-md);overflow:hidden;position:relative;
}
.chart-header{
  display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;
}
.chart-header h3{
  font-size:14px;font-weight:700;color:#fff;
}
.chart-badge{
  font-size:10px;font-weight:700;padding:3px 10px;background:var(--primary);color:#fff;border-radius:10px;
}
#trendChart{
  width:100%;height:140px;
}
.mini-stats{
  display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:12px;
}
.mini-stat{
  background:var(--bg-white);border:1px solid var(--border-color);border-radius:12px;padding:14px;display:flex;align-items:center;gap:10px;box-shadow:var(--shadow-sm);transition:all .25s;cursor:pointer;
}
.mini-stat:hover{
  transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--shadow-md);
}
.mini-stat-icon{
  width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#EFF6FF,#DBEAFE);border:1px solid rgba(37,99,235,.1);display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--primary);font-size:16px;
}
.mini-stat-info h4{
  font-size:16px;font-weight:700;color:var(--text);margin:0;
}
.mini-stat-info p{
  font-size:11px;color:var(--text-secondary);margin:4px 0 0;
}

/* Dashboard reveal animations */
.dashboard-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.dashboard-reveal.delay-1 { transition-delay: 0.12s; }
.dashboard-reveal.delay-2 { transition-delay: 0.24s; }
.dashboard-reveal.active {
    opacity: 1;
    transform: translateY(0);
}
@media(max-width:640px){
  .dashboard-section{padding:38px 16px}
  .dashboard-section-title h2{font-size:22px;line-height:1.25}
  .stats-row{grid-template-columns:1fr;gap:10px}
  .stat-card{display:flex;align-items:center;text-align:left;gap:12px;padding:14px 16px;border-radius:16px}
  .stat-icon-wrap{margin:0;width:42px;height:42px;flex-shrink:0}
  .stat-label{font-size:11px}
  .chart-card{border-radius:18px;padding:16px 14px}
  #trendChart{height:120px}
  .mini-stats{grid-template-columns:1fr;gap:10px}
  .mini-stat{border-radius:16px;padding:14px 16px}
}