/* QuickQ 共享样式 - 跨页面复用 */
:root{
  --bg-primary:#0b0e14;
  --bg-secondary:#11151f;
  --bg-card:rgba(255,255,255,0.03);
  --bg-card-hover:rgba(99,102,241,0.08);
  --border:rgba(255,255,255,0.08);
  --border-hover:rgba(99,102,241,0.35);
  --text-primary:#ffffff;
  --text-secondary:#c5cad6;
  --text-tertiary:#7a8294;
  /* 灵动配色：5 色体系 */
  --brand-1:#6366f1;       /* Indigo 主色 */
  --brand-2:#ec4899;       /* Pink 辅色 */
  --brand-3:#06b6d4;       /* Cyan 青 */
  --brand-4:#34d399;       /* Emerald 翠绿 */
  --accent:#fbbf24;        /* Amber 琥珀 */
  --gradient:linear-gradient(135deg,#6366f1 0%,#a78bfa 35%,#ec4899 70%,#f97316 100%);
  --gradient-cool:linear-gradient(135deg,#06b6d4 0%,#6366f1 50%,#a78bfa 100%);
  --gradient-warm:linear-gradient(135deg,#ec4899 0%,#f97316 50%,#fbbf24 100%);
  --gradient-mix:linear-gradient(135deg,#6366f1 0%,#ec4899 50%,#06b6d4 100%);
  --rainbow:linear-gradient(90deg,#ec4899 0%,#a78bfa 25%,#6366f1 50%,#06b6d4 75%,#34d399 100%);
  --shadow:0 10px 40px rgba(99,102,241,0.18);
  --shadow-hover:0 18px 50px rgba(236,72,153,0.30);
  --radius:14px;
  --radius-lg:20px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg-primary);color:var(--text-secondary);
  line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
ul{list-style:none}

/* 滚动条 */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-primary)}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#6366f1,#ec4899);border-radius:10px}
::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,#a78bfa,#f97316)}

/* 容器与板块 */
.container{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:96px 0;position:relative}

/* 全站统一的页面 hero 背景骨架（径向 + 网格 + mask 渐隐） */
.page-hero{
  position:relative;padding:160px 0 80px;text-align:left;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.025) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse 70% 60% at 50% 30%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 30%,#000 30%,transparent 75%);
  z-index:1;
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{
  font-size:clamp(36px,5.5vw,58px);font-weight:800;color:#fff;
  line-height:1.15;letter-spacing:-1px;margin-bottom:18px;
}
.page-hero h1 .grad{
  background:linear-gradient(120deg,#a78bfa 0%,#ec4899 35%,#f97316 70%,#fbbf24 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero .lead{font-size:17px;color:var(--text-secondary);max-width:640px;margin:0 auto 24px}
.section-head{text-align:center;margin-bottom:64px}
.section-eyebrow{
  display:inline-block;font-size:13px;letter-spacing:3px;text-transform:uppercase;
  color:var(--brand-1);padding:6px 14px;border:1px solid var(--border-hover);
  border-radius:100px;background:var(--bg-card);margin-bottom:18px;
}
.section-title{
  font-size:clamp(28px,4vw,44px);font-weight:700;color:var(--text-primary);
  letter-spacing:-.5px;margin-bottom:14px;
}
.section-title .grad{
  background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-sub{font-size:16px;color:var(--text-tertiary);max-width:680px;margin:0 auto}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:14px 28px;
  font-size:15px;font-weight:600;border-radius:12px;transition:all .35s ease;
  white-space:nowrap;letter-spacing:.3px;
}
.btn-primary{
  background:var(--gradient);color:#fff;
  box-shadow:0 6px 24px rgba(236,72,153,0.30),0 2px 6px rgba(99,102,241,0.20);
  background-size:200% 200%;background-position:0% 50%;
}
.btn-primary:hover{
  background-position:100% 50%;transform:translateY(-2px);
  box-shadow:0 10px 30px rgba(236,72,153,0.40),0 4px 12px rgba(99,102,241,0.30);
}
.btn-ghost{background:transparent;color:var(--text-primary);border:1px solid var(--border)}
.btn-ghost:hover{border-color:var(--brand-1);color:var(--brand-1);background:var(--bg-card-hover)}

/* 顶部导航 */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(11,14,20,0.7);backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--border);transition:all .3s;
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;max-width:1240px;margin:0 auto;padding:0 24px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:#fff}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--gradient);
  display:grid;place-items:center;box-shadow:0 4px 14px rgba(74,158,255,0.4);
}
.brand-mark svg{width:20px;height:20px;color:#fff}
.nav-menu{display:flex;align-items:center;gap:32px}
.nav-link{position:relative;font-size:15px;color:var(--text-secondary);padding:8px 0;transition:color .3s}
.nav-link:hover,.nav-link.active{color:#fff}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;
  height:2px;background:var(--gradient);border-radius:2px;
}
.nav-cta{padding:10px 22px;font-size:14px}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--border);color:#fff;align-items:center;justify-content:center}
.nav-toggle svg{width:20px;height:20px}

/* 页脚 */
.footer{background:var(--bg-secondary);border-top:1px solid var(--border);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:40px;margin-bottom:48px}
.footer-brand p{color:var(--text-tertiary);font-size:14px;margin-top:14px;max-width:280px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--border);
  display:grid;place-items:center;color:var(--text-tertiary);transition:all .3s;
}
.footer-social a:hover{border-color:var(--border-hover);color:var(--brand-1);background:var(--bg-card-hover)}
.footer-social svg{width:16px;height:16px}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:var(--text-tertiary);font-size:13.5px;transition:color .3s}
.footer-col a:hover{color:var(--brand-1)}
.footer-bottom{
  border-top:1px solid var(--border);padding-top:24px;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;
  color:var(--text-tertiary);font-size:13px;
}
.footer-bottom > div{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.footer-bottom a:hover{color:var(--brand-1)}

/* 信任徽章带（footer 上方） */
.footer-trust{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  padding:22px 24px;margin-bottom:36px;
  background:linear-gradient(135deg,rgba(99,102,241,.06),rgba(236,72,153,.04));
  border:1px solid var(--border);border-radius:var(--radius);
}
.footer-trust-item{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-secondary)}
.footer-trust-item svg{
  width:20px;height:20px;color:var(--brand-1);flex:none;
  padding:4px;border-radius:6px;
  background:rgba(99,102,241,.10);border:1px solid var(--border-hover);
}

/* 工信部备案号 */
.beian-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--text-tertiary);
  transition:color .3s;
}
.beian-link:hover{color:var(--brand-1)}
.beian-link svg{width:14px;height:14px;color:#ef4444;flex:none}

/* 动画 */
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.3)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}

/* 灵动流光 - 浮动色块 */
@keyframes blobDrift1{
  0%,100%{transform:translate(0,0) scale(1)}
  33%{transform:translate(40px,-30px) scale(1.08)}
  66%{transform:translate(-30px,40px) scale(0.95)}
}
@keyframes blobDrift2{
  0%,100%{transform:translate(0,0) scale(1)}
  50%{transform:translate(-50px,30px) scale(1.12)}
}
@keyframes blobDrift3{
  0%,100%{transform:translate(0,0) scale(1)}
  25%{transform:translate(30px,30px) scale(1.05)}
  75%{transform:translate(-30px,-20px) scale(0.92)}
}

/* 灵动板块容器 */
.lively-section{position:relative;overflow:hidden}
.lively-section .blob{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none;z-index:0}
.lively-section .blob-1{width:480px;height:480px;top:-100px;left:-120px;background:radial-gradient(circle,rgba(99,102,241,0.30),transparent 70%);animation:blobDrift1 14s ease-in-out infinite}
.lively-section .blob-2{width:520px;height:520px;bottom:-120px;right:-100px;background:radial-gradient(circle,rgba(236,72,153,0.26),transparent 70%);animation:blobDrift2 16s ease-in-out infinite}
.lively-section .blob-3{width:380px;height:380px;top:30%;right:30%;background:radial-gradient(circle,rgba(6,182,212,0.20),transparent 70%);animation:blobDrift3 18s ease-in-out infinite}
.lively-section .container{position:relative;z-index:1}
.fade-up{opacity:0;transform:translateY(24px);transition:all .8s cubic-bezier(.2,.7,.2,1)}
.fade-up.in{opacity:1;transform:translateY(0)}
.stagger>*{opacity:0;transform:translateY(20px);transition:all .7s cubic-bezier(.2,.7,.2,1)}
.stagger.in>*{opacity:1;transform:translateY(0)}
.stagger.in>*:nth-child(1){transition-delay:.05s}
.stagger.in>*:nth-child(2){transition-delay:.12s}
.stagger.in>*:nth-child(3){transition-delay:.19s}
.stagger.in>*:nth-child(4){transition-delay:.26s}
.stagger.in>*:nth-child(5){transition-delay:.33s}
.stagger.in>*:nth-child(6){transition-delay:.40s}
.stagger.in>*:nth-child(7){transition-delay:.47s}
.stagger.in>*:nth-child(8){transition-delay:.54s}

/* 响应式 - 共享 */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr 1fr}
  .footer-trust{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .section-head{margin-bottom:40px}
  .nav-menu{
    position:fixed;top:72px;left:0;right:0;background:var(--bg-secondary);
    flex-direction:column;gap:0;padding:14px 0;border-bottom:1px solid var(--border);
    transform:translateY(-120%);transition:transform .3s ease;
  }
  .nav-menu.open{transform:translateY(0)}
  .nav-menu .nav-link{padding:14px 24px;width:100%;border-bottom:1px solid var(--border)}
  .nav-menu .nav-cta{margin:14px 24px 6px;justify-content:center}
  .nav-toggle{display:flex}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-bottom{flex-direction:column;text-align:center}
  .footer-trust{grid-template-columns:1fr;gap:10px;padding:18px 20px}
}
@media (max-width:480px){
  .container{padding:0 18px}
  .footer-grid{grid-template-columns:1fr}
}