/* ===== QuickQ 全局样式 v2 — 全新设计 ===== */

:root {
  --bg: #06080d;
  --bg-surface: #0b0f18;
  --bg-card: #0f1521;
  --bg-card-hover: #141b2b;
  --bg-glass: rgba(18, 24, 40, 0.65);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --border-accent: rgba(59, 130, 246, 0.25);
  --text: #f1f5f9;
  --text-dim: #94a3b8;
  --text-muted: #64748b;
  --blue: #3b82f6;
  --blue-glow: rgba(59, 130, 246, 0.35);
  --cyan: #06b6d4;
  --purple: #8b5cf6;
  --emerald: #10b981;
  --amber: #f59e0b;
  --rose: #f43f5e;
  --gradient-1: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --gradient-2: linear-gradient(135deg, #06b6d4, #3b82f6);
  --gradient-3: linear-gradient(135deg, #3b82f6, #10b981);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.4);
  --shadow: 0 4px 24px rgba(0,0,0,.5);
  --shadow-lg: 0 12px 48px rgba(0,0,0,.6);
  --shadow-blue: 0 8px 32px var(--blue-glow);
  --ease: cubic-bezier(.4,0,.2,1);
  --ease-spring: cubic-bezier(.34,1.56,.64,1);
  --font-cn: "PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{
  font-family:"Inter",var(--font-cn);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
  min-height:100vh;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
button{cursor:pointer;border:none;font-family:inherit}

.container{max-width:1240px;margin:0 auto;padding:0 28px}

/* ===== 网格背景 ===== */
.bg-grid{
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse 60% 60% at 50% 0%,#000 30%,transparent 80%);
}

/* ===== 光斑 ===== */
.bg-orb{position:fixed;border-radius:50%;pointer-events:none;z-index:0;filter:blur(120px);opacity:.12}
.bg-orb-1{width:600px;height:600px;background:var(--blue);top:-200px;left:-100px;animation:orb1 12s ease-in-out infinite}
.bg-orb-2{width:500px;height:500px;background:var(--purple);bottom:-150px;right:-80px;animation:orb2 15s ease-in-out infinite}
.bg-orb-3{width:400px;height:400px;background:var(--cyan);top:50%;left:50%;animation:orb3 18s ease-in-out infinite}

@keyframes orb1{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(80px,60px) scale(1.2)}66%{transform:translate(-40px,-30px) scale(.9)}}
@keyframes orb2{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(-60px,-50px) scale(1.15)}66%{transform:translate(30px,40px) scale(.85)}}
@keyframes orb3{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-70px,30px) scale(1.3)}}

/* ===== 导航栏 ===== */
.nav{position:fixed;top:0;left:0;width:100%;z-index:100;padding:14px 0;transition:all .4s var(--ease)}
.nav.scrolled{background:rgba(6,8,13,.85);backdrop-filter:blur(24px) saturate(180%);border-bottom:1px solid var(--border);box-shadow:0 4px 32px rgba(0,0,0,.4)}
.nav .container{display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;letter-spacing:-.5px}
.nav-logo-icon{width:38px;height:38px;background:var(--gradient-1);border-radius:var(--radius-xs);display:grid;place-items:center;font-size:18px;font-weight:900;color:#fff;box-shadow:var(--shadow-blue)}
.nav-logo-text{background:linear-gradient(135deg,#f1f5f9,#94a3b8);-webkit-background-clip:text;-webkit-text-fill-color:transparent}

.nav-links{display:flex;align-items:center;gap:36px}
.nav-links a{font-size:14.5px;font-weight:500;color:var(--text-dim);transition:color .25s;position:relative;padding:6px 0}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;border-radius:1px;background:var(--gradient-1);transition:width .3s var(--ease)}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{background:var(--gradient-1)!important;color:#fff!important;padding:9px 22px!important;border-radius:var(--radius-full)!important;font-weight:600!important;box-shadow:var(--shadow-blue);transition:all .3s var(--ease)!important}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 40px rgba(59,130,246,.5)!important}
.nav-cta::after{display:none!important}

.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;z-index:101;padding:4px}
.hamburger span{width:24px;height:2px;background:var(--text);border-radius:1px;transition:all .3s var(--ease)}
.hamburger.on span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.on span:nth-child(2){opacity:0}
.hamburger.on span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:var(--radius-full);font-size:15px;font-weight:600;transition:all .3s var(--ease);white-space:nowrap;letter-spacing:.01em}
.btn-primary{background:var(--gradient-1);color:#fff;box-shadow:var(--shadow-blue)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 44px rgba(59,130,246,.55)}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--text);border:1px solid var(--border);backdrop-filter:blur(12px)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:var(--border-hover);transform:translateY(-2px)}
.btn-lg{padding:17px 38px;font-size:16px}
.btn-sm{padding:10px 20px;font-size:13.5px}

/* ===== 通用区块 ===== */
.section{padding:110px 0;position:relative;z-index:1}
.section-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--blue);letter-spacing:.04em;text-transform:uppercase;margin-bottom:18px}
.section-label::before{content:'';width:24px;height:1px;background:var(--blue)}
.section-title{font-size:42px;font-weight:800;letter-spacing:-1.5px;line-height:1.15;margin-bottom:18px}
.section-title em{font-style:normal;background:var(--gradient-1);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.section-sub{font-size:16px;color:var(--text-dim);max-width:520px}
.section-header{text-align:center;margin-bottom:72px}
.section-header .section-sub{margin:0 auto}

/* ===== 淡入动画 ===== */
.fade-up{opacity:0;transform:translateY(36px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* ===== 页脚 ===== */
.footer{border-top:1px solid var(--border);background:var(--bg-surface);padding:56px 0 28px;position:relative;z-index:1}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:40px}
.footer-brand p{color:var(--text-dim);margin-top:14px;font-size:14px;max-width:280px;line-height:1.8}
.footer-col h4{font-size:13px;font-weight:700;color:var(--text);margin-bottom:18px;text-transform:uppercase;letter-spacing:.06em}
.footer-col a{display:block;color:var(--text-dim);font-size:14px;margin-bottom:10px;transition:color .25s}
.footer-col a:hover{color:var(--text)}
.footer-bottom{border-top:1px solid var(--border);padding-top:24px;display:flex;justify-content:space-between;align-items:center;color:var(--text-muted);font-size:12.5px}

@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){
  .container{padding:0 18px}
  .hamburger{display:flex}
  .nav-links{position:fixed;top:0;right:-100%;width:72%;max-width:300px;height:100vh;background:var(--bg-surface);flex-direction:column;justify-content:center;gap:30px;transition:right .4s var(--ease);border-left:1px solid var(--border);z-index:100}
  .nav-links.on{right:0}
  .section-title{font-size:30px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:6px;text-align:center}
}
@media(max-width:480px){
  .section-title{font-size:26px}
  .btn-lg{padding:14px 28px;font-size:15px}
}