/* === baosao-travel Global Styles === */

:root {
  --primary: #FF6B6B;
  --primary-dark: #E85555;
  --secondary: #4ECDC4;
  --accent: #FFE66D;
  --bg: #FFFBF5;
  --card-bg: #FFFFFF;
  --text: #2D2D2D;
  --text-light: #6B6B6B;
  --text-muted: #999999;
  --border: #F0E8E0;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* === NAVBAR === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 251, 245, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}

.navbar.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: 'PingFang SC', 'STSong', 'SimSun', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo .emoji {
  font-size: 1.6rem;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-light);
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 120px 24px 80px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #FFF5F5 0%, #FFFBF5 30%, #F5FFFE 60%, #FFF5F5 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,107,107,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(78,205,196,0.06) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: white;
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  margin-bottom: 28px;
  animation: fadeInUp 0.6s ease;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero h1 {
  font-family: 'PingFang SC', 'STSong', 'SimSun', serif;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--primary), #FF8E8E);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  color: var(--text-light);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 40px;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeInUp 0.6s ease 0.3s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 16px rgba(255,107,107,0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(255,107,107,0.4);
}

.btn-secondary {
  background: white;
  color: var(--text);
  border: 2px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  animation: bounce 2s infinite;
  opacity: 0.6;
}

.hero-scroll span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.hero-scroll svg {
  width: 24px;
  height: 24px;
  stroke: var(--text-muted);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-8px); }
  60% { transform: translateY(-4px); }
}

/* === SECTION COMMON === */
.section {
  padding: 100px 24px;
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.section-title {
  font-family: 'PingFang SC', 'STSong', 'SimSun', serif;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 12px;
}

.section-desc {
  color: var(--text-light);
  font-size: 1.05rem;
  max-width: 480px;
  margin: 0 auto;
}

/* === TOOLS GRID === */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 28px;
}

.tool-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.tool-card.live {
  cursor: pointer;
}

.tool-card.live:active {
  transform: translateY(-2px);
}

.tool-card.coming-soon {
  opacity: 0.7;
}

.tool-card-icon {
  font-size: 2.5rem;
  margin-bottom: 20px;
  display: inline-block;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #FFF5F5, #FFF0F0);
}

.tool-card:nth-child(2) .tool-card-icon {
  background: linear-gradient(135deg, #F5FFFE, #F0FFFE);
}

.tool-card:nth-child(3) .tool-card-icon {
  background: linear-gradient(135deg, #FFFBF0, #FFF8E0);
}

.tool-card:nth-child(4) .tool-card-icon {
  background: linear-gradient(135deg, #F5F0FF, #F0E8FF);
}

.tool-card h3 {
  font-family: 'PingFang SC', 'STSong', 'SimSun', serif;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.tool-card p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.tool-card .card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: gap 0.3s ease;
}

.tool-card.live:hover .card-arrow {
  gap: 12px;
}

.tool-card .badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 4px 14px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.badge-new {
  background: #E8F8F5;
  color: var(--secondary);
}

.badge-soon {
  background: #FFF0E0;
  color: #D4A054;
}

/* === ABOUT SECTION === */
.about {
  background: linear-gradient(180deg, transparent, #FFF5F5 50%, transparent);
}

.about-content {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
}

.about-content p {
  color: var(--text-light);
  font-size: 1.05rem;
  line-height: 2;
  margin-bottom: 16px;
}

/* === FOOTER === */
.footer {
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

.footer p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer .heart {
  color: var(--primary);
  display: inline-block;
  animation: pulse 1.5s infinite;
}

/* === FADE IN ANIMATION === */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding: 100px 20px 60px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 60px 20px;
  }
}

/* === SCROLL REVEAL === */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}