/* ============================================
   0081 - 湖蓝+沙色 · 自然户外风
   HHpoker Official Club
   ============================================ */

/* --- CSS Variables --- */
:root {
  --lake: #06b6d4;
  --lake-deep: #0891b2;
  --sand: #fde68a;
  --sand-light: #fef3c7;
  --deep-blue: #1e3a5f;
  --deep-blue-dark: #0f2440;
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

/* --- Top Wave Decoration --- */
.wave-top {
  position: absolute;
  top: 0; left: 0; width: 100%;
  overflow: hidden;
  line-height: 0;
  z-index: 10;
}
.wave-top svg {
  display: block;
  width: 100%;
  height: 40px;
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: var(--sand-light);
  border-bottom: 2px solid rgba(6, 182, 212, 0.15);
  transition: var(--transition);
  padding: 0;
}
.navbar.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--lake-deep);
}
.nav-logo i { font-size: 1.5rem; color: var(--lake); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  text-decoration: none;
  color: var(--gray-700);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  transition: var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--lake);
  transition: width 0.3s;
}
.nav-links a:hover { color: var(--lake); }
.nav-links a:hover::after { width: 100%; }
.nav-cta-btn {
  background: var(--lake);
  color: #fff !important;
  padding: 0.5rem 1.4rem !important;
  border-radius: 50px;
  font-weight: 600 !important;
  transition: var(--transition);
}
.nav-cta-btn:hover {
  background: var(--lake-deep);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(6,182,212,0.35);
}
.nav-cta-btn::after { display: none !important; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 26px; height: 2.5px;
  background: var(--gray-700);
  border-radius: 3px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 70px; left: 0; right: 0; bottom: 0;
  background: rgba(254, 243, 199, 0.98);
  backdrop-filter: blur(10px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
}
.mobile-menu.active { display: flex; }
.mobile-menu a {
  text-decoration: none;
  color: var(--gray-800);
  font-size: 1.2rem;
  font-weight: 600;
  transition: var(--transition);
}
.mobile-menu a:hover { color: var(--lake); }

/* --- Hero Section --- */
.hero {
  position: relative;
  padding: 140px 1.5rem 100px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, var(--sand-light) 0%, #fff 60%);
  overflow: hidden;
}
.hero-container {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 2;
}
.hero-text h1 {
  font-size: 3.2rem;
  font-weight: 900;
  color: var(--deep-blue);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}
.hero-text h1 .accent { color: var(--lake); }
.hero-text .subtitle {
  font-size: 1.15rem;
  color: var(--gray-600);
  margin-bottom: 2rem;
  max-width: 480px;
}
.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--lake);
  color: #fff;
  padding: 0.85rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  background: var(--lake-deep);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(6,182,212,0.35);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--lake);
  padding: 0.85rem 2rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: 2px solid var(--lake);
  transition: var(--transition);
  cursor: pointer;
}
.btn-outline:hover {
  background: var(--lake);
  color: #fff;
  transform: translateY(-3px);
}
.hero-image {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-image img {
  width: 100%;
  max-width: 500px;
  border-radius: 24px;
  box-shadow: 0 20px 60px rgba(6,182,212,0.2);
  position: relative;
  z-index: 2;
}

/* Wave Animation Circles */
.wave-circles {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 1;
}
.wave-circle {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(6,182,212,0.15);
  animation: waveExpand 4s ease-out infinite;
}
.wave-circle:nth-child(1) { width: 200px; height: 200px; animation-delay: 0s; }
.wave-circle:nth-child(2) { width: 200px; height: 200px; animation-delay: 1.3s; }
.wave-circle:nth-child(3) { width: 200px; height: 200px; animation-delay: 2.6s; }

@keyframes waveExpand {
  0% { transform: translate(-50%,-50%) scale(0.5); opacity: 0.8; }
  100% { transform: translate(-50%,-50%) scale(3); opacity: 0; }
}

/* --- Features Section --- */
.features {
  padding: 5rem 1.5rem;
  background: var(--white);
  position: relative;
}
.section-label {
  text-align: center;
  color: var(--lake);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}
.section-title {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--deep-blue);
  margin-bottom: 1rem;
}
.section-desc {
  text-align: center;
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto 3.5rem;
}
/* Sandbar wave clip */
.sandbar-wrapper {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}
.sandbar-wrapper::before {
  content: '';
  position: absolute;
  bottom: -40px; left: 0; right: 0;
  height: 120px;
  background: var(--sand-light);
  border-radius: 50% 50% 0 0 / 100% 100% 0 0;
  z-index: 0;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  position: relative;
  z-index: 1;
  padding-bottom: 3rem;
}
.feature-card {
  background: #fff;
  border-radius: 20px;
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
  transition: var(--transition);
  position: relative;
  border: 1px solid rgba(6,182,212,0.08);
}
.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(6,182,212,0.15);
}
.feature-icon {
  width: 70px; height: 70px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--lake), var(--lake-deep));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.2rem;
  color: #fff;
  font-size: 1.6rem;
}
.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--deep-blue);
  margin-bottom: 0.6rem;
}
.feature-card p {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- Stats Section --- */
.stats {
  padding: 5rem 1.5rem;
  background: var(--sand-light);
}
.stats-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.stat-item {
  text-align: center;
  position: relative;
}
.stat-item:not(:last-child)::after {
  content: '\f111';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  right: -1.5rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--lake);
  font-size: 0.45rem;
}
.stat-number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--lake);
  line-height: 1;
  margin-bottom: 0.4rem;
}
.stat-label {
  font-size: 0.95rem;
  color: var(--gray-600);
  font-weight: 500;
}

/* --- Testimonials Section --- */
.testimonials {
  padding: 5rem 1.5rem;
  background: var(--white);
}
.testimonials-masonry {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: start;
}
.testimonial-card {
  background: #fff;
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 8px 30px rgba(0,0,0,0.05);
  border: 1px solid rgba(6,182,212,0.1);
  position: relative;
}
.testimonial-card:nth-child(1) {
  margin-top: 0;
  min-height: 240px;
}
.testimonial-card:nth-child(2) {
  margin-top: 3rem;
  min-height: 280px;
}
.testimonial-card:nth-child(3) {
  margin-top: 1.5rem;
  min-height: 220px;
}
.testimonial-card .quote-icon {
  color: var(--lake);
  font-size: 1.5rem;
  margin-bottom: 0.8rem;
  opacity: 0.5;
}
.testimonial-card .text {
  color: var(--gray-700);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.2rem;
  font-style: italic;
}
.testimonial-card .author {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.testimonial-card .author img {
  width: 44px; height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--lake);
}
.testimonial-card .author .name {
  font-weight: 700;
  color: var(--deep-blue);
  font-size: 0.9rem;
}
.testimonial-card .author .role {
  font-size: 0.8rem;
  color: var(--gray-600);
}

/* --- FAQ Section --- */
.faq {
  padding: 5rem 1.5rem;
  background: var(--sand-light);
}
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border-radius: 14px;
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  transition: var(--transition);
}
.faq-item:hover { box-shadow: 0 4px 20px rgba(6,182,212,0.1); }
.faq-question {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.3rem 1.5rem;
  cursor: pointer;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--deep-blue);
  user-select: none;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}
.faq-question .drop-icon {
  color: var(--lake);
  font-size: 1.1rem;
  flex-shrink: 0;
}
.faq-question .arrow {
  margin-left: auto;
  transition: transform 0.3s;
  color: var(--lake);
}
.faq-item.active .faq-question .arrow {
  transform: rotate(180deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-item.active .faq-answer {
  max-height: 300px;
}
.faq-answer-inner {
  padding: 0 1.5rem 1.3rem 3.5rem;
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* --- CTA Section --- */
.cta {
  padding: 6rem 1.5rem;
  background: linear-gradient(135deg, var(--lake) 0%, var(--deep-blue) 100%);
  text-align: center;
}
.cta h2 {
  font-size: 2.5rem;
  font-weight: 900;
  color: #fff;
  margin-bottom: 1rem;
}
.cta p {
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}
.cta .btn-white {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #fff;
  color: var(--lake-deep);
  padding: 0.9rem 2.5rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  transition: var(--transition);
}
.cta .btn-white:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(255,255,255,0.3);
}

/* --- Footer --- */
.footer {
  background: var(--deep-blue-dark);
  padding: 4rem 1.5rem 2rem;
  color: var(--sand-light);
}
.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
}
.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--sand);
}
.footer-col p, .footer-col a {
  color: rgba(254,243,199,0.7);
  font-size: 0.9rem;
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--sand); }
.footer-bottom {
  max-width: 1200px;
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(254,243,199,0.15);
  text-align: center;
  font-size: 0.85rem;
  color: rgba(254,243,199,0.5);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero-container { grid-template-columns: 1fr; text-align: center; }
  .hero-text h1 { font-size: 2.2rem; }
  .hero-text .subtitle { margin: 0 auto 2rem; }
  .hero-buttons { justify-content: center; }
  .hero-image { order: -1; }
  .hero-image img { max-width: 300px; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:not(:last-child)::after { display: none; }
  .testimonials-masonry { grid-template-columns: 1fr; }
  .testimonial-card:nth-child(1),
  .testimonial-card:nth-child(2),
  .testimonial-card:nth-child(3) { margin-top: 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .section-title { font-size: 1.8rem; }
}