/* ==========================================================================
   龙猫云 (Totoro-Yun.mom) - 极光流体 Bento Grid 样式表 (Sunset Aurora SaaS)
   Pure Native CSS - 0 External Dependencies - Ultra Modern Bento Layout
   ========================================================================== */

:root {
  --bg-deep: #090915;
  --bg-card: rgba(19, 19, 43, 0.7);
  --bg-card-hover: rgba(28, 28, 64, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(236, 72, 153, 0.4);

  --aurora-coral: #ec4899;
  --aurora-amber: #f59e0b;
  --aurora-indigo: #6366f1;
  --aurora-cyan: #06b6d4;

  --gradient-aurora: linear-gradient(135deg, #f59e0b 0%, #ec4899 50%, #6366f1 100%);
  --gradient-btn: linear-gradient(135deg, #f59e0b 0%, #ec4899 100%);
  --gradient-btn-hover: linear-gradient(135deg, #ec4899 0%, #f59e0b 100%);

  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", "Fira Code", Consolas, monospace;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-sans);
}

body {
  line-height: 1.6;
  overflow-x: hidden;
  background: 
    radial-gradient(circle at 50% 0%, rgba(236, 72, 153, 0.15) 0%, transparent 60%),
    radial-gradient(circle at 85% 20%, rgba(245, 158, 11, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 15% 60%, rgba(99, 102, 241, 0.12) 0%, transparent 50%),
    var(--bg-deep);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.aurora-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(236, 72, 153, 0.1);
  border: 1px solid rgba(236, 72, 153, 0.3);
  border-radius: var(--radius-full);
  color: #f472b6;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px auto;
}

.section-title {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: var(--gradient-aurora);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s ease;
}

.btn-primary {
  background: var(--gradient-btn);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(236, 72, 153, 0.35);
}

.btn-primary:hover {
  background: var(--gradient-btn-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(236, 72, 153, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border-color: var(--border-subtle);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--aurora-coral);
  transform: translateY(-2px);
}

.btn-large {
  padding: 16px 36px;
  font-size: 1.08rem;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  background: rgba(9, 9, 21, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.navbar .nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 800;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.nav-link:hover { color: #f472b6; }

/* Hero */
.hero {
  padding: 170px 0 100px 0;
  text-align: center;
}

.hero-title {
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 22px;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 780px;
  margin: 0 auto 38px auto;
  line-height: 1.8;
}

/* Bento Grid (便当盒创新布局) */
.bento-section { padding: 90px 0; }

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 240px;
  gap: 24px;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.bento-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  box-shadow: 0 10px 30px rgba(236, 72, 153, 0.15);
}

.bento-card.col-span-2 { grid-column: span 2; }
.bento-card.row-span-2 { grid-row: span 2; }

.bento-tag {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--aurora-amber);
  text-transform: uppercase;
}

.bento-title {
  font-size: 1.4rem;
  font-weight: 800;
  margin: 8px 0;
  color: #fff;
}

.bento-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Pricing Grid */
.pricing-section { padding: 100px 0; }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: rgba(236, 72, 153, 0.4);
}

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(236, 72, 153, 0.1) 0%, rgba(19, 19, 43, 0.95) 100%);
  border: 2px solid var(--aurora-coral);
  box-shadow: 0 0 35px rgba(236, 72, 153, 0.25);
  transform: scale(1.03);
}

.pricing-card.featured:hover { transform: scale(1.04) translateY(-6px); }

.price-box {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin: 20px 0;
}

.price-box .price {
  font-size: 3.2rem;
  font-weight: 800;
  color: #fff;
}

.pricing-card.featured .price {
  color: #f472b6;
}

/* Footer */
.footer {
  background: #06060e;
  border-top: 1px solid var(--border-subtle);
  padding: 44px 0;
  text-align: center;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.footer-nav a { color: var(--text-secondary); font-size: 0.92rem; }
.footer-nav a:hover { color: #f472b6; }
.footer-copy { color: var(--text-muted); font-size: 0.85rem; }

@media (max-width: 992px) {
  .bento-grid { grid-template-columns: 1fr; grid-auto-rows: auto; }
  .bento-card.col-span-2 { grid-column: span 1; }
  .pricing-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.6rem; }
}