/* =========================================================
   新私域科技 官网样式 style.css
   现代深色主题 · 玻璃拟态 · 渐变高光 · 响应式
   ========================================================= */

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

/* ---------- 主题变量 ---------- */
:root{
  --bg:#05060f;
  --bg-2:#0a0d1e;
  --surface:rgba(255,255,255,.04);
  --surface-2:rgba(255,255,255,.06);
  --border:rgba(255,255,255,.09);
  --border-strong:rgba(255,255,255,.16);
  --text:#eef1fb;
  --text-muted:#9aa3c4;
  --text-dim:#6b7392;
  --brand:#7c6cff;
  --brand-2:#22d3ee;
  --brand-3:#f472b6;
  --accent:linear-gradient(120deg,#7c6cff 0%,#4f8cff 45%,#22d3ee 100%);
  --accent-soft:linear-gradient(120deg,rgba(124,108,255,.18),rgba(34,211,238,.18));
  --radius:18px;
  --radius-lg:26px;
  --radius-sm:12px;
  --shadow:0 20px 50px -20px rgba(0,0,0,.7);
  --maxw:1200px;
  --space:clamp(64px,9vw,120px);
}

/* ---------- 排版 ---------- */
h1,h2,h3,h4{line-height:1.15;font-weight:800;letter-spacing:-.02em}
.gradient-text{
  background:var(--accent);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.16em;
  color:var(--brand-2);
  padding:7px 14px;border:1px solid var(--border);border-radius:999px;
  background:var(--surface);
}
.section-title{font-size:clamp(28px,4.4vw,46px);margin:18px 0 14px}
.section-lead{max-width:640px;color:var(--text-muted);font-size:clamp(15px,1.6vw,18px)}

/* ---------- 容器与区块 ---------- */
.container{width:min(var(--maxw),92vw);margin-inline:auto}
section{padding-block:var(--space);position:relative}
.section-head{margin-bottom:clamp(36px,5vw,60px)}
.center{text-align:center}
.center .section-lead{margin-inline:auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:999px;font-weight:700;font-size:15px;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s;
  will-change:transform;white-space:nowrap;
}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 30px -10px rgba(124,108,255,.8)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 40px -12px rgba(124,108,255,.9)}
.btn-ghost{border:1px solid var(--border-strong);color:var(--text);background:var(--surface)}
.btn-ghost:hover{transform:translateY(-3px);border-color:var(--brand-2);background:var(--surface-2)}
/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:50;
  transition:background .35s ease,border-color .35s,backdrop-filter .35s;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(8,10,22,.72);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px;letter-spacing:-.01em}
.brand .brand-mark{width:34px;height:34px;display:grid;place-items:center;color:#fff}
.brand small{display:block;font-size:11px;font-weight:600;color:var(--text-dim);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:34px}
.nav-links a{font-size:15px;color:var(--text-muted);font-weight:600;position:relative;transition:color .25s}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;
  background:var(--accent);transition:width .3s ease;border-radius:2px;
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{width:100%}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:var(--surface)}
.nav-toggle svg{width:22px;height:22px;margin-inline:auto}

/* ---------- Hero ---------- */
.hero{position:relative;padding-top:150px;padding-bottom:110px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero-bg canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.55}
.orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55;animation:float 16s ease-in-out infinite}
.orb-1{width:480px;height:480px;background:radial-gradient(circle,#7c6cff,transparent 70%);top:-120px;left:-80px}
.orb-2{width:420px;height:420px;background:radial-gradient(circle,#22d3ee,transparent 70%);top:120px;right:-100px;animation-delay:-5s}
.orb-3{width:360px;height:360px;background:radial-gradient(circle,#f472b6,transparent 70%);bottom:-140px;left:40%;animation-delay:-9s}
.grid-overlay{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 40%,transparent 100%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 40%,transparent 100%);
}
.hero-inner{position:relative;z-index:2;text-align:center;max-width:920px;margin-inline:auto}
.hero h1{font-size:clamp(38px,6.6vw,78px);letter-spacing:-.03em;margin:26px 0 24px}
.hero .lead{font-size:clamp(16px,1.9vw,20px);color:var(--text-muted);max-width:680px;margin:0 auto 38px}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-chips{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:44px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  background:var(--surface);border:1px solid var(--border);font-size:13.5px;color:var(--text-muted);font-weight:600;
}
.chip svg{width:15px;height:15px;color:var(--brand-2)}
@keyframes float{0%,100%{transform:translate(0,0)}50%{transform:translate(24px,-30px)}}
/* ---------- 数据条 ---------- */
.stats{border-block:1px solid var(--border);background:linear-gradient(180deg,rgba(255,255,255,.02),transparent)}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding-block:0}
.stat{padding:14px 6px;text-align:center}
.stat .num{font-size:clamp(30px,4vw,46px);font-weight:800;letter-spacing:-.02em}
.stat .label{color:var(--text-muted);font-size:14px;margin-top:6px}

/* ---------- 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,64px);align-items:center}
.about-text p{color:var(--text-muted);margin-bottom:18px;font-size:16.5px}
.about-values{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}
.value-card{padding:20px 18px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}
.value-card .ic{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;background:var(--accent-soft);color:var(--brand-2);margin-bottom:12px}
.value-card .ic svg{width:20px;height:20px}
.value-card h4{font-size:16px;margin-bottom:4px}
.value-card p{font-size:13.5px;color:var(--text-muted);margin:0}

.info-list{margin-top:18px;display:grid;gap:12px}
.info-list li{display:flex;gap:14px;font-size:14.5px}
.info-list .k{color:var(--text-dim);min-width:96px;flex:none}
.info-list .v{color:var(--text)}

/* ---------- 服务能力 ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.service-card{
  position:relative;padding:30px 26px;border-radius:var(--radius-lg);
  border:1px solid var(--border);background:var(--surface);overflow:hidden;
  transition:transform .3s ease,border-color .3s,background .3s;
}
.service-card::before{
  content:"";position:absolute;inset:0;opacity:0;transition:opacity .35s;
  background:radial-gradient(600px circle at var(--mx,50%) var(--my,0%),rgba(124,108,255,.16),transparent 40%);
}
.service-card:hover{transform:translateY(-6px);border-color:var(--border-strong);background:var(--surface-2)}
.service-card:hover::before{opacity:1}
.service-card .ic{
  width:54px;height:54px;border-radius:15px;display:grid;place-items:center;
  background:var(--accent-soft);color:var(--brand-2);margin-bottom:20px;position:relative;z-index:1;
}
.service-card .ic svg{width:26px;height:26px}
.service-card h3{font-size:20px;margin-bottom:10px;position:relative;z-index:1}
.service-card p{color:var(--text-muted);font-size:14.5px;position:relative;z-index:1}
.service-card .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;position:relative;z-index:1}
.service-card .tags span{font-size:12px;color:var(--text-dim);padding:4px 10px;border:1px solid var(--border);border-radius:999px}

/* ---------- 解决方案 ---------- */
.solutions{background:linear-gradient(180deg,transparent,rgba(124,108,255,.05),transparent)}
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:step}
.process-step{
  position:relative;padding:26px 20px;border-radius:var(--radius);border:1px solid var(--border);
  background:var(--surface);text-align:left;transition:transform .3s,border-color .3s;
}
.process-step:hover{transform:translateY(-6px);border-color:var(--brand-2)}
.process-step .step-ic{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:var(--accent-soft);color:var(--brand-2);margin-bottom:16px}
.process-step .step-ic svg{width:22px;height:22px}
.process-step .step-no{counter-increment:step;position:absolute;top:20px;right:22px;font-size:32px;font-weight:800;color:rgba(255,255,255,.07)}
.process-step .step-no::before{content:"0" counter(step)}
.process-step h4{font-size:16.5px;margin-bottom:6px}
.process-step p{font-size:13px;color:var(--text-muted)}

.loop-panel{
  margin-top:34px;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;
  padding:clamp(26px,4vw,46px);border-radius:var(--radius-lg);
  border:1px solid var(--border-strong);
  background:linear-gradient(120deg,rgba(124,108,255,.14),rgba(34,211,238,.1));
}
.loop-panel h3{font-size:clamp(22px,3vw,30px);margin-bottom:12px}
.loop-panel p{color:var(--text-muted);max-width:560px}
.loop-panel .btn{flex:none}

/* ---------- 优势 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.adv-item{display:flex;gap:18px;padding:26px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);transition:border-color .3s,transform .3s}
.adv-item:hover{border-color:var(--border-strong);transform:translateY(-4px)}
.adv-item .ic{width:50px;height:50px;flex:none;border-radius:14px;display:grid;place-items:center;background:var(--accent-soft);color:var(--brand-2)}
.adv-item .ic svg{width:24px;height:24px}
.adv-item h4{font-size:18px;margin-bottom:7px}
.adv-item p{color:var(--text-muted);font-size:14.5px}
/* ---------- 联系我们 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px);align-items:start}
.contact-info .info-row{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--border)}
.contact-info .info-row:last-child{border-bottom:none}
.contact-info .ic{width:48px;height:48px;flex:none;border-radius:13px;display:grid;place-items:center;background:var(--accent-soft);color:var(--brand-2)}
.contact-info .ic svg{width:22px;height:22px}
.contact-info .k{font-size:13px;color:var(--text-dim);letter-spacing:.06em}
.contact-info .v{font-size:16px;color:var(--text);font-weight:600;margin-top:3px}
.contact-form{
  padding:clamp(24px,3vw,36px);border-radius:var(--radius-lg);
  border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;color:var(--text-muted);margin-bottom:8px;font-weight:600}
.field input,.field textarea{
  width:100%;padding:13px 15px;border-radius:12px;font-size:15px;
  background:rgba(255,255,255,.03);border:1px solid var(--border);color:var(--text);
  transition:border-color .25s,background .25s;font-family:inherit;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand-2);background:rgba(255,255,255,.05)}
.field textarea{resize:vertical;min-height:110px}
.form-note{font-size:12.5px;color:var(--text-dim);margin-top:12px}
.form-status{font-size:14px;margin-top:14px;color:var(--brand-2);min-height:20px}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--border);background:var(--bg-2);padding-block:56px 30px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--text-muted);font-size:14px;max-width:360px}
.footer-col h5{font-size:14px;letter-spacing:.08em;color:var(--text);margin-bottom:16px}
.footer-col a,.footer-col li{display:block;color:var(--text-muted);font-size:14px;margin-bottom:11px;transition:color .25s}
.footer-col a:hover{color:var(--brand-2)}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:var(--text-dim);font-size:13px;
}
.footer-bottom a:hover{color:var(--brand-2)}

/* ---------- 滚动进入动效 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.08s}
.reveal[data-delay="2"]{transition-delay:.16s}
.reveal[data-delay="3"]{transition-delay:.24s}
.reveal[data-delay="4"]{transition-delay:.32s}
.reveal[data-delay="5"]{transition-delay:.4s}

/* ---------- 响应式 ---------- */
@media (max-width:960px){
  .nav-links,.nav-right .btn{display:none}
  .nav-toggle{display:grid;place-items:center}
  .nav-menu-open .nav-links{
    display:flex;position:absolute;top:74px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(8,10,22,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);padding:10px 6vw 24px;
  }
  .nav-menu-open .nav-links a{padding:15px 0;border-bottom:1px solid var(--border);width:100%}
  .about-grid,.contact-grid{grid-template-columns:1fr}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .process{grid-template-columns:repeat(2,1fr)}
  .adv-grid,.footer-top{grid-template-columns:1fr}
  .loop-panel{grid-template-columns:1fr}
  .stats .container{grid-template-columns:repeat(2,1fr);gap:10px}
}
@media (max-width:560px){
  .services-grid,.process,.about-values{grid-template-columns:1fr}
  .info-list .k{min-width:84px}
}

/* ---------- 无障碍：尊重减少动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
  .hero-bg canvas{display:none}
}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px}
/* ---------- 品牌标记与图标微调 ---------- */
.brand-mark{background:var(--accent);border-radius:10px;box-shadow:0 6px 18px -6px rgba(124,108,255,.9)}
.brand-mark svg{width:20px;height:20px}
.hero-badge{display:inline-flex;align-items:center;gap:9px;padding:8px 16px;border-radius:999px;background:var(--surface);border:1px solid var(--border);font-size:13.5px;color:var(--text-muted);font-weight:600}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:#34d399;box-shadow:0 0 0 4px rgba(52,211,153,.18)}
.about-media{position:relative}
.about-media .glow-behind{position:absolute;inset:-20px;background:var(--accent-soft);filter:blur(50px);z-index:-1;border-radius:40px}
/* ---------- 企业信息卡 ---------- */
.company-card{border:1px solid var(--border);border-radius:var(--radius-lg);padding:clamp(22px,3vw,30px);background:var(--surface);box-shadow:var(--shadow)}
.company-card .card-top{display:flex;align-items:center;gap:14px;margin-bottom:20px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.company-card .card-top .ic{width:50px;height:50px;flex:none;border-radius:14px;display:grid;place-items:center;background:var(--accent-soft);color:var(--brand-2)}
.company-card .card-top .ic svg{width:24px;height:24px}
.company-card .card-top h3{font-size:19px;margin-bottom:2px}
.company-card .card-top p{font-size:13px;color:var(--text-dim)}