/* 福手ERP 官网静态页样式（无外部依赖） */

:root{
  --bg: #070b14;
  --bg2: #0b1220;
  --card: rgba(255,255,255,.06);
  --card2: rgba(255,255,255,.085);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.68);
  --muted2: rgba(255,255,255,.56);
  --line: rgba(255,255,255,.12);
  --brand: #7c3aed;
  --brand2: #22c55e;
  --danger: #ef4444;
  --warn: #f59e0b;
  --ok: #22c55e;
  --shadow: 0 16px 50px rgba(0,0,0,.45);
  --radius: 16px;
  --radius2: 22px;
  --container: 1120px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans SC", sans-serif;
  background:
    radial-gradient(900px 600px at 15% -10%, rgba(124,58,237,.55), rgba(124,58,237,0) 60%),
    radial-gradient(900px 600px at 90% 10%, rgba(34,197,94,.35), rgba(34,197,94,0) 55%),
    linear-gradient(180deg, var(--bg), var(--bg2) 60%, #070a12 100%);
  color: var(--text);
  line-height: 1.55;
}

a{ color: inherit; text-decoration: none; }
a:hover{ opacity: .92; }

img{ max-width: 100%; height: auto; display: block; }

.container{
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}

.skip-link{
  position:absolute;
  left:12px;
  top:12px;
  padding:10px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  transform: translateY(-140%);
  transition: transform .18s ease;
  z-index: 2000;
}
.skip-link:focus{ transform: translateY(0); outline: none; }

/* Header */
.site-header{
  position: sticky;
  top:0;
  z-index: 1000;
  backdrop-filter: blur(12px);
  background: rgba(7,11,20,.62);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.site-header.is-scrolled{
  background: rgba(7,11,20,.76);
  box-shadow: 0 10px 30px rgba(0,0,0,.22);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 12px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  min-width: 168px;
}
.brand-logo{ width: 34px; height: 34px; }
.brand-name{
  font-weight: 700;
  letter-spacing: .2px;
}

.nav{
  display:flex;
  align-items:center;
  gap: 18px;
}
.nav a{
  font-size: 14px;
  color: rgba(255,255,255,.78);
  padding: 8px 10px;
  border-radius: 999px;
}
.nav a:hover{ background: rgba(255,255,255,.08); color: rgba(255,255,255,.92); }
.nav .nav-cta{
  background: linear-gradient(90deg, rgba(124,58,237,.95), rgba(34,197,94,.9));
  color: rgba(255,255,255,.95);
  box-shadow: 0 10px 24px rgba(124,58,237,.18);
}
.nav .nav-cta:hover{ background: linear-gradient(90deg, rgba(124,58,237,1), rgba(34,197,94,.96)); }

.nav-toggle{
  display:none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.9);
}
.nav-toggle-lines{
  display:block;
  width: 18px;
  height: 2px;
  background: rgba(255,255,255,.86);
  border-radius: 10px;
  margin: 0 auto;
  position: relative;
}
.nav-toggle-lines::before,
.nav-toggle-lines::after{
  content:"";
  position:absolute;
  left:0;
  width: 18px;
  height: 2px;
  background: rgba(255,255,255,.86);
  border-radius: 10px;
  transition: transform .18s ease, top .18s ease, opacity .18s ease;
}
.nav-toggle-lines::before{ top: -6px; }
.nav-toggle-lines::after{ top: 6px; }

/* Hero */
.hero{
  padding: 68px 0 36px;
  position: relative;
  overflow: hidden;
}
.hero-inner{
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 34px;
  align-items: center;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  color: rgba(255,255,255,.78);
  font-size: 13px;
}
.hero h1{
  margin: 16px 0 10px;
  font-size: clamp(34px, 3.6vw, 56px);
  line-height: 1.06;
  letter-spacing: -0.8px;
}
.lead{
  margin: 0 0 18px;
  color: rgba(255,255,255,.74);
  font-size: 16px;
  max-width: 56ch;
}
.hero-actions{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 11px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  color: rgba(255,255,255,.92);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .2px;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.btn:hover{ transform: translateY(-1px); border-color: rgba(255,255,255,.22); }
.btn.primary{
  border-color: rgba(124,58,237,.55);
  background: linear-gradient(90deg, rgba(124,58,237,.95), rgba(34,197,94,.88));
  box-shadow: 0 18px 40px rgba(124,58,237,.14);
}
.btn.primary:hover{ border-color: rgba(124,58,237,.8); }
.btn.ghost{
  background: rgba(255,255,255,.04);
}

.hero-metrics{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
}
.hero-metrics > div{
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
}
.hero-metrics dt{
  font-size: 13px;
  color: rgba(255,255,255,.78);
  margin:0 0 4px;
}
.hero-metrics dd{
  margin:0;
  font-weight: 650;
  color: rgba(255,255,255,.92);
  font-size: 14px;
}

.hero-art{
  position: relative;
  min-height: 420px;
}
.mock-card{
  border-radius: var(--radius2);
  border: 1px solid rgba(255,255,255,.14);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04));
  box-shadow: var(--shadow);
  overflow: hidden;
}
.mock-top{
  display:flex;
  align-items:center;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.12);
}
.dot{
  width: 9px; height: 9px;
  border-radius: 99px;
  display:inline-block;
  opacity: .9;
}
.dot.red{ background: #ef4444; }
.dot.yellow{ background: #f59e0b; }
.dot.green{ background: #22c55e; }
.mock-title{
  margin-left: 8px;
  color: rgba(255,255,255,.72);
  font-size: 13px;
}
.mock-body{ padding: 16px; }
.kpi{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.kpi-item{
  padding: 12px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
}
.kpi-label{ color: rgba(255,255,255,.70); font-size: 13px; }
.kpi-value{ font-size: 26px; font-weight: 750; margin-top: 2px; letter-spacing: .2px;}
.kpi-sub{ color: rgba(255,255,255,.55); font-size: 12px; margin-top: 2px;}
.mock-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}
.mock-panel{
  padding: 12px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
}
.panel-title{ color: rgba(255,255,255,.72); font-size: 13px; }
.panel-foot{ color: rgba(255,255,255,.55); font-size: 12px; margin-top: 8px; }
.bar{
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.07);
  overflow: hidden;
  margin-top: 10px;
  border: 1px solid rgba(255,255,255,.10);
}
.bar i{
  display:block;
  height: 100%;
  background: linear-gradient(90deg, rgba(34,197,94,.92), rgba(124,58,237,.92));
}
.bar.alt i{ background: linear-gradient(90deg, rgba(124,58,237,.92), rgba(59,130,246,.92)); }
.mock-list{
  margin-top: 12px;
  display:grid;
  gap: 10px;
}
.row{
  display:flex;
  justify-content: space-between;
  align-items:center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  color: rgba(255,255,255,.78);
  font-size: 13px;
}
.pill{
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(34,197,94,.12);
  border: 1px solid rgba(34,197,94,.22);
  color: rgba(255,255,255,.86);
  font-size: 12px;
}
.glow{
  position:absolute;
  inset: -30px -40px -50px -40px;
  background:
    radial-gradient(closest-side at 55% 40%, rgba(124,58,237,.28), rgba(124,58,237,0)),
    radial-gradient(closest-side at 35% 75%, rgba(34,197,94,.18), rgba(34,197,94,0));
  filter: blur(22px);
  z-index: -1;
}

/* Sections */
.section{
  padding: 64px 0;
}
.section.alt{
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0));
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 22px;
}
.section-head h2{
  margin:0;
  font-size: 28px;
  letter-spacing: -0.3px;
}
.section-head p{
  margin:0;
  max-width: 62ch;
  color: rgba(255,255,255,.70);
  font-size: 14px;
}

.grid{ display:grid; gap: 14px; }
.cards{ grid-template-columns: repeat(3, minmax(0,1fr)); }
.card{
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
  transition: transform .12s ease, border-color .12s ease, background .12s ease;
}
.card:hover{ transform: translateY(-2px); border-color: rgba(255,255,255,.22); background: rgba(255,255,255,.065); }
.card h3{ margin: 0 0 8px; font-size: 17px; letter-spacing: -.1px; }
.card p{ margin:0 0 12px; color: rgba(255,255,255,.70); font-size: 14px; }
.list{
  margin:0;
  padding-left: 16px;
  color: rgba(255,255,255,.78);
  font-size: 13px;
}
.list li{ margin: 6px 0; }

.scenario{ grid-template-columns: repeat(4, minmax(0,1fr)); }
.scenario-card{
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
}
.scenario-card h3{ margin:0 0 8px; font-size: 16px; }
.scenario-card p{ margin:0; color: rgba(255,255,255,.70); font-size: 14px; }

.security{ grid-template-columns: repeat(4, minmax(0,1fr)); }
.security-item{
  padding: 16px 16px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
}
.security-item h3{ margin: 0 0 8px; font-size: 15px; }
.security-item p{ margin:0; color: rgba(255,255,255,.70); font-size: 13.5px; }

.legal-links{
  margin-top: 16px;
  display:flex;
  gap: 10px;
  align-items:center;
  color: rgba(255,255,255,.72);
  font-size: 14px;
}
.legal-links a{
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
}
.sep{ opacity: .5; }

/* FAQ */
.faq{
  display:grid;
  gap: 12px;
}
details{
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  overflow: hidden;
}
summary{
  cursor:pointer;
  padding: 16px 18px;
  font-weight: 650;
  color: rgba(255,255,255,.90);
  list-style: none;
}
summary::-webkit-details-marker{ display:none; }
details[open] summary{
  border-bottom: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.05);
}
.answer{ padding: 14px 18px 16px; color: rgba(255,255,255,.72); font-size: 14px; }
.answer p{ margin:0; }

/* Contact */
.contact{
  display:grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 14px;
  align-items: start;
}
.contact-card{
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
}
.contact-card h3{ margin:0 0 10px; font-size: 17px; }
.contact-item{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
  margin: 10px 0 0;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  color: rgba(255,255,255,.80);
}
.label{ color: rgba(255,255,255,.65); font-size: 13px; }

form.contact-form{
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
}
.form-row{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
label{ display:block; }
label span{ display:block; margin: 0 0 8px; color: rgba(255,255,255,.72); font-size: 13px; }
input, textarea{
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(0,0,0,.18);
  padding: 12px 12px;
  color: rgba(255,255,255,.92);
  outline: none;
}
input:focus, textarea:focus{
  border-color: rgba(124,58,237,.65);
  box-shadow: 0 0 0 4px rgba(124,58,237,.18);
}
textarea{ resize: vertical; min-height: 122px; }
.form-tip{ margin: 10px 0 0; }

.muted{ color: var(--muted); }
.small{ font-size: 12.5px; color: var(--muted2); }

/* Footer */
.footer{
  border-top: 1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.14);
  padding: 28px 0;
}
.footer-inner{
  display:grid;
  grid-template-columns: 1.2fr .8fr 1fr;
  gap: 12px;
  align-items: center;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap: 10px;
}
.footer-links{
  display:flex;
  gap: 12px;
  justify-content:center;
}
.footer-links a{
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  color: rgba(255,255,255,.75);
  font-size: 13px;
}
.footer-meta{
  display:flex;
  justify-content:flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

/* Legal pages */
.legal-page{
  padding: 42px 0 64px;
}
.legal-card{
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
}
.legal-card h1{ margin: 0 0 8px; font-size: 28px; }
.legal-card h2{ margin: 22px 0 10px; font-size: 18px; }
.legal-card p, .legal-card li{ color: rgba(255,255,255,.72); font-size: 14px; }
.legal-card ul{ padding-left: 18px; }
.legal-top{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.back-home{
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  color: rgba(255,255,255,.84);
  font-size: 13px;
}

/* Responsive */
@media (max-width: 980px){
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-art{ min-height: unset; }
  .cards{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .scenario{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .security{ grid-template-columns: repeat(2, minmax(0,1fr)); }
  .contact{ grid-template-columns: 1fr; }
  .footer-inner{ grid-template-columns: 1fr; justify-items: start; }
  .footer-links{ justify-content: flex-start; }
  .footer-meta{ justify-content: flex-start; }
}

@media (max-width: 720px){
  .header-inner{ padding: 12px 0; }
  .nav-toggle{ display:inline-flex; align-items:center; justify-content:center; }
  .nav{
    position: absolute;
    left: 0;
    right: 0;
    top: 64px;
    margin: 0;
    padding: 12px;
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    background: rgba(7,11,20,.92);
    border-bottom: 1px solid rgba(255,255,255,.08);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .14s ease, transform .14s ease;
  }
  .nav.is-open{
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav a{ padding: 12px 12px; font-size: 14px; }
  .hero{ padding-top: 54px; }
  .hero-metrics{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: 1fr; }
  .scenario{ grid-template-columns: 1fr; }
  .security{ grid-template-columns: 1fr; }
  .form-row{ grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .btn, .card, .nav{ transition: none; }
}