/* ============================================
   小舍科技官网 · 赛博朋克科技风共享样式 (v1.0)
   霓虹青/紫/洋红渐变 + 深空底 + 玻璃拟态 + 发光
   ============================================ */
:root {
  --cyber-bg: #05060f;
  --cyber-bg2: #0a0d1f;
  --cyber-cyan: #00e5ff;
  --cyber-purple: #8b5cf6;
  --cyber-magenta: #f472b6;
  --cyber-green: #34d399;
  --cyber-gold: #ffd34d;
  --cyber-text: #e2e8f0;
  --cyber-text-dim: #8b93a7;
  --cyber-border: rgba(0, 229, 255, 0.18);
  --cyber-glass: rgba(255, 255, 255, 0.04);
  --grad-main: linear-gradient(135deg, #00e5ff 0%, #8b5cf6 50%, #f472b6 100%);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  color: var(--cyber-text);
  background: var(--cyber-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ---- 背景网格 + 光晕（fixed 全屏） ---- */
.cyber-bg {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(139,92,246,.14) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 100%, rgba(0,229,255,.10) 0%, transparent 55%),
    linear-gradient(180deg, #05060f 0%, #0a0d1f 100%);
}
.cyber-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .05;
  background-image:
    linear-gradient(rgba(0,229,255,.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,.6) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 75%);
}

.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ---- 顶栏 ---- */
header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(5,6,15,.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--cyber-border);
  padding: 12px 0;
}
header .container { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.logo img { width: 42px; height: 42px; border-radius: 10px; box-shadow: 0 0 18px rgba(0,229,255,.35); }
.logo .logo-text { font-size: 18px; font-weight: 800; letter-spacing: 1px; color: #fff; }
.logo .logo-text span { background: var(--grad-main); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
nav { display: flex; align-items: center; gap: 30px; flex-wrap: wrap; }
nav a {
  color: rgba(226,232,240,.8); text-decoration: none; font-size: 16px;
  transition: color .2s, text-shadow .2s;
  white-space: nowrap;
  letter-spacing: .5px;
}
nav a:hover { color: var(--cyber-cyan); text-shadow: 0 0 12px rgba(0,229,255,.6); }
nav a.active {
  color: var(--cyber-cyan); font-weight: 700;
  text-shadow: 0 0 12px rgba(0,229,255,.55);
  position: relative;
}
nav a.active::after {
  content: ""; position: absolute; left: 2px; right: 2px; bottom: -6px; height: 2px;
  background: linear-gradient(90deg, #8b5cf6, #06b6d4); border-radius: 2px;
}
nav a.cta {
  padding: 8px 18px; border-radius: 8px; font-weight: 600; color: #05060f;
  background: var(--grad-main); box-shadow: 0 0 20px rgba(139,92,246,.4);
}
nav a.cta:hover { color: #05060f; text-shadow: none; box-shadow: 0 0 28px rgba(0,229,255,.55); }

/* ---- Hero ---- */
.hero { padding: 96px 0 80px; position: relative; }
.hero h1 { font-size: 46px; font-weight: 800; line-height: 1.3; margin-bottom: 20px; }
.hero h1 .grad {
  background: var(--grad-main); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; filter: drop-shadow(0 0 22px rgba(139,92,246,.45));
}
.hero p { font-size: 18px; color: var(--cyber-text-dim); max-width: 700px; margin-bottom: 34px; }
.btn {
  display: inline-block; padding: 13px 32px; border-radius: 10px; font-size: 15px; font-weight: 600;
  text-decoration: none; transition: transform .15s, box-shadow .15s; border: none; cursor: pointer;
}
.btn-primary {
  background: var(--grad-main); color: #05060f;
  box-shadow: 0 0 26px rgba(139,92,246,.45);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 36px rgba(0,229,255,.5); }
.btn-ghost {
  border: 1.5px solid rgba(0,229,255,.4); color: var(--cyber-cyan); background: transparent; margin-left: 14px;
}
.btn-ghost:hover { border-color: var(--cyber-cyan); box-shadow: 0 0 18px rgba(0,229,255,.3); }

section { padding: 72px 0; }
.section-title { font-size: 30px; font-weight: 800; margin-bottom: 14px; text-align: center; }
.section-title .grad {
  background: var(--grad-main); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section-sub { text-align: center; color: var(--cyber-text-dim); margin-bottom: 44px; font-size: 16px; }

/* ---- 卡片：玻璃拟态 + 发光边框 ---- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 22px; }
.card {
  position: relative; background: var(--cyber-glass);
  border: 1px solid rgba(255,255,255,.07); border-radius: 16px; padding: 26px;
  backdrop-filter: blur(8px);
  transition: transform .2s, box-shadow .2s, border-color .2s;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad-main); opacity: 0; transition: opacity .25s;
}
.card:hover { transform: translateY(-4px); border-color: rgba(0,229,255,.35); box-shadow: 0 10px 34px rgba(0,229,255,.10); }
.card:hover::before { opacity: 1; }
.card h3 { font-size: 19px; margin-bottom: 10px; color: #fff; }
.card p { color: var(--cyber-text-dim); font-size: 14.5px; }
.card-link { display: block; color: inherit; text-decoration: none; cursor: pointer; }
.card .more { margin-top: 14px; font-weight: 600; background: var(--grad-main); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; font-size: 13.5px; }
.tag {
  display: inline-block; padding: 3px 12px; border-radius: 20px; font-size: 12px; margin-bottom: 12px;
  color: var(--cyber-cyan); background: rgba(0,229,255,.10); border: 1px solid rgba(0,229,255,.25);
}

/* 能力格 */
.cap-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 16px; margin-top: 30px; }
.cap {
  background: var(--cyber-glass); border: 1px solid rgba(255,255,255,.07); border-radius: 14px;
  padding: 20px; text-align: center; backdrop-filter: blur(8px);
  transition: border-color .2s, box-shadow .2s;
}
.cap:hover { border-color: rgba(139,92,246,.4); box-shadow: 0 0 22px rgba(139,92,246,.15); }
.cap .icon { font-size: 28px; margin-bottom: 8px; }
.cap h4 { font-size: 15px; margin-bottom: 6px; color: #fff; }
.cap p { color: var(--cyber-text-dim); font-size: 13px; }

/* 统计 */
.stat-row { display: flex; justify-content: center; gap: 60px; margin-top: 40px; flex-wrap: wrap; }
.stat { text-align: center; }
.stat b {
  font-size: 30px; display: block;
  background: var(--grad-main); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 14px rgba(139,92,246,.4));
}
.stat span { font-size: 13px; color: var(--cyber-text-dim); }

/* ---- Footer ---- */
footer { background: rgba(5,6,15,.9); border-top: 1px solid var(--cyber-border); padding: 46px 0 30px; font-size: 14px; }
footer a { color: var(--cyber-text-dim); text-decoration: none; transition: color .2s; }
footer a:hover { color: var(--cyber-cyan); }
.f-cols { display: flex; flex-wrap: wrap; gap: 40px; }
.f-col h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.f-col ul { list-style: none; padding: 0; margin: 0; }
.f-col li { margin-bottom: 8px; }
.f-brand p { opacity: .75; }
.f-bottom { margin-top: 30px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.07); text-align: center; color: var(--cyber-text-dim); }
.f-bottom a { color: var(--cyber-text-dim); }

/* 响应式 */
@media (max-width: 860px) {
  nav { gap: 12px; }
  nav a { font-size: 13px; }
  .hero h1 { font-size: 32px; }
  .btn { display: block; margin: 8px 0; text-align: center; }
  .btn-ghost { margin-left: 0; }
  .stat-row { gap: 30px; }
}