*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#f8fafc;--bg-white:#ffffff;
  --border:#e2e8f0;--border-color:#e2e8f0;--border-light:#edf2f7;--border-hover:#cbd5e1;
  --text:#0f172a;--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:12px;--radius-sm:8px;
  --shadow:0 1px 3px rgba(0,0,0,.04),0 1px 2px rgba(0,0,0,.02);
  --shadow-sm:0 1px 3px rgba(0,0,0,.04),0 1px 2px rgba(0,0,0,.02);
  --shadow-md:0 6px 24px rgba(0,0,0,.06),0 2px 8px rgba(0,0,0,.04);
  --gradient:linear-gradient(135deg,#2563EB,#6366F1);
}

html{scroll-behavior:smooth;overflow-x:hidden}
body{
  font-family:'DM Sans','Noto Sans SC',sans-serif;
  background:var(--bg);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;width:40px;height:40px;border:none;background:var(--bg);
  cursor:pointer;padding:8px;border-radius:8px;position:relative;z-index:101;
  border:1px solid var(--border);
}
.hamburger-btn span{
  display:block;width:24px;height:2px;background:var(--text);
  margin:6px 0;border-radius:2px;transition:all .3s;
}
.hamburger-btn.active span:nth-child(1){transform:rotate(45deg) translate(5px,6px)}
.hamburger-btn.active span:nth-child(2){opacity:0}
.hamburger-btn.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-6px)}
.mobile-nav{
  display:none;position:fixed;top:0;left:0;right:0;bottom:0;
  background:var(--bg-white);z-index:99;padding-top:76px;animation:slideDown .3s ease;
  overflow-y:auto;
}
.mobile-nav.show{display:block}
.mobile-nav-inner{
  display:flex;flex-direction:column;gap:4px;padding:20px;
  max-width:1240px;margin:0 auto;
}
.mobile-nav-inner a{
  padding:14px 18px;border-radius:10px;color:var(--text-sec);
  font-size:16px;font-weight:500;transition:all .2s;
}
.mobile-nav-inner a:hover,.mobile-nav-inner a.active{
  background:var(--primary-light);color:var(--primary);
}
.mobile-nav-actions{
  display:flex;gap:10px;margin-top:16px;padding-top:16px;
  border-top:1px solid var(--border);
}
.mobile-nav-actions .btn{flex:1;text-align:center}
@keyframes slideDown{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:960px){
  .nav-links{display:none}
  .header-actions{display:none}
  .hamburger-btn{display:block}
  .footer-grid{grid-template-columns:1fr 1fr}
  .container{padding:0 24px}
}
@media(max-width:768px){
  body{padding-top:60px}
  .header-inner{padding:0 16px;height:60px}
  .brand-text{font-size:16px}
  .brand-sub{display:none}
  .container{padding:0 16px}
  .section-header h2{font-size:24px}
  .page-hero h1{font-size:26px}
  footer{padding:40px 16px 24px}
}
@media(max-width:480px){
  .footer-grid{grid-template-columns:1fr}
  .section-header h2{font-size:22px}
  .page-hero h1{font-size:24px}
  .btn-primary-lg,.btn-secondary-lg{padding:12px 28px;font-size:14px}
}
.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;
}
@media(max-width:768px){.footer-particle-section{height:140px}}
@media(max-width:480px){.footer-particle-section{height:120px}}

/* ========== 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;
}
@media(max-width:768px){
  .dashboard-section{padding:32px 16px;}
  .stats-row{grid-template-columns:repeat(3,1fr);gap:10px;}
  .stat-card{padding:14px 10px 12px;}
  .stat-icon-wrap{width:40px;height:40px;font-size:14px;margin-bottom:8px;}
  .stat-value{font-size:15px;}
  .stat-label{font-size:11px;margin-top:3px;}
  .stat-trend{font-size:10px;padding:2px 6px;margin-top:3px;}
  .chart-card{padding:14px;margin-top:10px;}
  .chart-header h3{font-size:13px;}
  .chart-badge{font-size:9px;padding:2px 8px;}
  #trendChart{height:130px;}
  .mini-stats{grid-template-columns:1fr;gap:10px;margin-top:10px;}
  .mini-stat{padding:14px;}
  .mini-stat-info h4{font-size:15px;}
  .mini-stat-info p{font-size:12px;margin-top:2px;}
  .mini-stat-icon{width:44px;height:44px;font-size:15px;}
}
@media(max-width:480px){
  .stats-row{grid-template-columns:repeat(2,1fr);}
  .dashboard-section-title h2{font-size:18px;}
}

/* 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);
}