/* WPS Office 模板第13套 — 暗夜星空极光风 */
:root {
  --bg-base: #050510;
  --bg-secondary: #080818;
  --glass-bg: rgba(0,212,170,0.06);
  --glass-border: rgba(0,212,170,0.15);
  --glass-hover: rgba(0,212,170,0.1);
  --accent: #00d4aa;
  --accent-2: #0066ff;
  --accent-light: rgba(0,212,170,0.12);
  --text-primary: #e8f4ff;
  --text-secondary: rgba(232,244,255,0.65);
  --text-muted: rgba(232,244,255,0.38);
  --white: #ffffff;
  --green: #4ade80;
  --red: #f87171;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-glass: 0 8px 32px rgba(0,0,0,0.5);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  --gradient: linear-gradient(135deg, #00d4aa, #0066ff);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'Noto Sans SC', sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.glass-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius);
}
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 24px; height: 64px;
  display: flex; align-items: center;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition);
}
.navbar.scrolled { background: rgba(0,0,0,0.88); box-shadow: 0 4px 24px rgba(0,0,0,0.4); }
.nav-container { width: 100%; max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 40px; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; flex-shrink: 0; }
.logo-icon {
  width: 34px; height: 34px;
  background: var(--gradient);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1rem; color: #fff;
}
.logo-text em { font-style: normal; color: var(--accent-2); }
.nav-menu { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav-link { padding: 6px 14px; border-radius: 8px; font-size: 0.9rem; color: var(--text-secondary); transition: var(--transition); }
.nav-link:hover, .nav-link.active { color: var(--text-primary); background: var(--glass-bg); }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.btn-nav-download {
  padding: 8px 20px;
  background: var(--gradient);
  border-radius: 8px; font-size: 0.875rem; font-weight: 600; color: #fff;
  transition: var(--transition); white-space: nowrap;
}
.btn-nav-download:hover { opacity: 0.88; transform: translateY(-1px); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; background: var(--gradient);
  border-radius: var(--radius-sm); font-weight: 600; font-size: 1rem; color: #fff;
  transition: var(--transition); box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}
.btn-primary:hover { transform: translateY(-2px); opacity: 0.9; }
.btn-glass {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; background: var(--glass-bg);
  border: 1px solid var(--glass-border); backdrop-filter: blur(10px);
  border-radius: var(--radius-sm); font-weight: 600; font-size: 1rem; color: var(--text-primary);
  transition: var(--transition);
}
.btn-glass:hover { background: var(--glass-hover); transform: translateY(-2px); }
.hero {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; overflow: hidden; padding: 100px 24px 60px;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-orb {
  position: absolute; border-radius: 50%;
  filter: blur(100px); opacity: 0.25;
}
.orb-1 { width: 700px; height: 700px; background: #00d4aa; top: -200px; left: -100px; }
.orb-2 { width: 500px; height: 500px; background: #0066ff; bottom: -100px; right: 5%; }
.grid-overlay {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content { position: relative; max-width: 680px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; background: var(--glass-bg);
  border: 1px solid var(--glass-border); backdrop-filter: blur(10px);
  border-radius: 100px; font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 24px;
}
.badge-dot { width: 8px; height: 8px; background: var(--green); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity:1;transform:scale(1); } 50% { opacity:.6;transform:scale(.85); } }
.hero-title { font-size: clamp(2.2rem, 4vw, 3.5rem); font-weight: 800; line-height: 1.2; margin-bottom: 20px; }
.hero-title span { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-desc { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 36px; line-height: 1.8; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; }
.stat-item { text-align: center; }
.stat-num { font-size: 2rem; font-weight: 800; }
.stat-unit { font-size: 1rem; color: var(--accent-2); font-weight: 600; }
.stat-label { display: block; font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }
.stat-divider { width: 1px; height: 40px; background: var(--glass-border); }
.section-header { text-align: center; margin-bottom: 56px; }
.section-tag {
  display: inline-block; padding: 4px 14px;
  background: var(--accent-light); border: 1px solid rgba(0,0,0,0.1);
  border-radius: 100px; font-size: 0.8rem; color: var(--accent-2); margin-bottom: 16px;
}
.section-title { font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 800; margin-bottom: 16px; line-height: 1.25; }
.section-title strong { color: var(--accent-2); }
.section-desc { font-size: 1rem; color: var(--text-secondary); max-width: 560px; margin: 0 auto; }
.advantages { padding: 100px 0; background: var(--bg-secondary); }
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.adv-card { padding: 32px 28px; transition: var(--transition); }
.adv-card:hover { transform: translateY(-6px); background: var(--glass-hover); }
.adv-icon {
  width: 56px; height: 56px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; background: var(--gradient); color: #fff; font-size: 1.5rem;
}
.adv-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 12px; }
.adv-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }
.cta-section { padding: 80px 0; }
.cta-card {
  padding: 60px 40px; text-align: center;
  background: var(--accent-light); border-color: var(--glass-border);
}
.cta-card h2 { font-size: 2rem; font-weight: 800; margin-bottom: 16px; }
.cta-card p { color: var(--text-secondary); margin-bottom: 36px; font-size: 1.05rem; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.footer { padding: 60px 0 32px; background: var(--bg-secondary); border-top: 1px solid var(--glass-border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.1rem; margin-bottom: 16px; }
.footer-brand p { font-size: 0.875rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 20px; }
.footer-col h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 0.85rem; color: var(--text-muted); transition: var(--transition); }
.footer-col a:hover { color: var(--accent-2); }
.footer-bottom { padding-top: 24px; border-top: 1px solid var(--glass-border); text-align: center; }
.footer-bottom p { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 6px; }
.footer-bottom a { color: var(--accent-2); }
@media (max-width: 1024px) {
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-menu { display: none; position: fixed; top: 64px; left: 0; right: 0; background: var(--bg-base); border-bottom: 1px solid var(--glass-border); padding: 16px 24px; flex-direction: column; gap: 4px; }
  .nav-menu.open { display: flex; }
  .nav-toggle { display: flex; }
  .adv-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 20px; }
  .footer-grid { grid-template-columns: 1fr; }
}