/* 龙虎棋牌 - 完整样式文件 */
:root {
  --primary: #b8860b;
  --primary-light: #daa520;
  --primary-dark: #8b6508;
  --bg: #f8f5f0;
  --text: #2d2a24;
  --card-bg: rgba(255, 255, 255, 0.7);
  --glass: rgba(255, 255, 255, 0.3);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  --radius: 20px;
  --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;
}

[data-theme="dark"] {
  --bg: #1a1814;
  --text: #e8e0d0;
  --card-bg: rgba(30, 28, 24, 0.8);
  --glass: rgba(30, 28, 24, 0.5);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
  min-height: 100vh;
}

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

section {
  padding: 80px 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h2 {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
  line-height: 1.3;
}

h3 {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 600;
  line-height: 1.4;
}

h4 {
  font-weight: 600;
  line-height: 1.4;
}

p {
  line-height: 1.7;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  font-family: inherit;
  line-height: 1.2;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  box-shadow: 0 4px 20px rgba(184, 134, 11, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(184, 134, 11, 0.4);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
}

.glass-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(184, 134, 11, 0.1);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px;
  transition: all var(--transition);
}

.glass-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.section-label {
  display: inline-block;
  padding: 6px 18px;
  background: rgba(184, 134, 11, 0.12);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.text-center {
  text-align: center;
}

.mt-16 {
  margin-top: 16px;
}

.mt-32 {
  margin-top: 32px;
}

.mb-16 {
  margin-bottom: 16px;
}

.mb-32 {
  margin-bottom: 32px;
}

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 24, 20, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(184, 134, 11, 0.15);
  transition: all var(--transition);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-light);
  text-decoration: none;
  white-space: nowrap;
}

.nav-logo svg {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
  background: rgba(184, 134, 11, 0.2);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 8px;
}

.nav-toggle span {
  width: 28px;
  height: 2px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 4px;
  transition: all 0.3s;
}

.theme-toggle {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  transition: all 0.3s;
  line-height: 1;
}

.theme-toggle:hover {
  background: rgba(184, 134, 11, 0.3);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-btn {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 8px;
  transition: color 0.3s;
  line-height: 1;
}

.search-btn:hover {
  color: var(--primary-light);
}

/* ===== Mobile Menu ===== */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(26, 24, 20, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  color: #fff;
  font-size: 1.4rem;
  font-weight: 500;
  text-decoration: none;
  padding: 12px 24px;
  border-radius: 12px;
  transition: background 0.3s;
}

.mobile-menu a:hover {
  background: rgba(184, 134, 11, 0.2);
}

.mobile-menu .close-menu {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
}

/* ===== Search Overlay ===== */
.search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
}

.search-overlay.open {
  display: flex;
}

.search-box {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 40px;
  width: 90%;
  max-width: 500px;
  text-align: center;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 16px 20px;
  border-radius: 50px;
  border: 2px solid rgba(184, 134, 11, 0.3);
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  font-size: 1.1rem;
  outline: none;
  transition: border 0.3s;
  font-family: inherit;
}

.search-box input:focus {
  border-color: var(--primary);
}

.search-box .close-search {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

/* ===== Banner ===== */
.hero-banner {
  padding-top: 70px;
}

.hero-banner .container {
  position: relative;
}

.banner-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.banner-slide.active {
  opacity: 1;
}

.banner-content {
  text-align: center;
  max-width: 700px;
  position: relative;
  z-index: 2;
}

.banner-content h1 {
  color: #fff;
  margin-bottom: 20px;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.banner-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.15rem;
  margin-bottom: 28px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.banner-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #1a1814 0%, #2d2a24 50%, #3d3528 100%);
  overflow: hidden;
}

.banner-bg::before {
  content: '';
  position: absolute;
  inset: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 40%, rgba(184, 134, 11, 0.15) 0%, transparent 60%),
              radial-gradient(circle at 70% 60%, rgba(218, 165, 32, 0.1) 0%, transparent 50%);
  animation: bgShift 20s ease infinite;
}

.banner-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 5;
}

.banner-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: all 0.3s;
  border: none;
}

.banner-dot.active {
  background: var(--primary-light);
  transform: scale(1.3);
}

@keyframes bgShift {
  0%, 100% { transform: rotate(0deg); }
  50% { transform: rotate(3deg); }
}

.value-prop {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 20px;
}

.value-prop span {
  padding: 6px 16px;
  background: rgba(184, 134, 11, 0.1);
  border-radius: 50px;
  font-size: 0.9rem;
  color: var(--primary);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  list-style: none;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--primary-light);
}

.breadcrumb li + li::before {
  content: '/';
  margin-right: 8px;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== Stats ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  text-align: center;
}

.stat-item {
  padding: 24px;
  background: var(--card-bg);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text);
  opacity: 0.8;
  margin-top: 8px;
}

/* ===== FAQ ===== */
.faq-item {
  border-bottom: 1px solid rgba(184, 134, 11, 0.15);
  padding: 16px 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 8px 0;
  background: none;
  border: none;
  color: var(--text);
  width: 100%;
  text-align: left;
  font-family: inherit;
  line-height: 1.4;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  transition: transform 0.3s;
  color: var(--primary);
  line-height: 1;
  flex-shrink: 0;
  margin-left: 12px;
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  padding: 0 16px;
  color: var(--text);
  opacity: 0.8;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 12px 16px 16px;
}

/* ===== HowTo ===== */
.howto-step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 20px 0;
  border-bottom: 1px solid rgba(184, 134, 11, 0.1);
}

.howto-step:last-child {
  border-bottom: none;
}

.step-number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.step-content h4 {
  font-weight: 600;
  margin-bottom: 6px;
}

/* ===== Product Card ===== */
.product-card {
  text-align: center;
  padding: 32px 20px;
}

.product-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 2rem;
  color: #fff;
}

/* ===== Solution Card ===== */
.solution-card {
  padding: 28px;
  border-left: 4px solid var(--primary);
}

/* ===== Service Card ===== */
.service-card {
  padding: 28px;
  text-align: center;
}

.service-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

/* ===== Culture Card ===== */
.culture-card {
  padding: 28px;
  text-align: center;
  border-radius: var(--radius);
  background: var(--card-bg);
}

.culture-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

/* ===== News Card ===== */
.news-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
}

.news-card:hover {
  transform: translateY(-4px);
}

.news-card-body {
  padding: 20px;
}

.news-card-body .date {
  font-size: 0.8rem;
  opacity: 0.6;
  margin-bottom: 8px;
}

.news-card-body h4 {
  margin-bottom: 8px;
  font-weight: 600;
}

/* ===== Testimonial Card ===== */
.testimonial-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 12px;
  left: 20px;
  font-size: 4rem;
  color: var(--primary);
  opacity: 0.2;
  font-family: var(--font-serif);
  line-height: 1;
}

.testimonial-card .author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
}

.testimonial-card .author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== Case Card ===== */
.case-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition);
}

.case-card:hover {
  transform: translateY(-4px);
}

.case-card .case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(184, 134, 11, 0.15);
  border-radius: 50px;
  font-size: 0.8rem;
  color: var(--primary);
  margin-bottom: 12px;
}

/* ===== Partner Grid ===== */
.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.partner-item {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 16px 24px;
  font-weight: 600;
  font-size: 0.95rem;
  backdrop-filter: blur(10px);
}

/* ===== Team Grid ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
}

.team-card {
  text-align: center;
  padding: 24px;
  background: var(--card-bg);
  border-radius: var(--radius);
}

.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: #fff;
  font-weight: 700;
}

.team-card h4 {
  margin-bottom: 4px;
}

.team-card .role {
  font-size: 0.85rem;
  opacity: 0.7;
}

/* ===== Contact ===== */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--card-bg);
  border-radius: 12px;
}

.contact-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
  font-size: 1.1rem;
}

.map-placeholder {
  width: 100%;
  height: 300px;
  border-radius: var(--radius);
  background: var(--card-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--primary);
  margin-top: 24px;
}

/* ===== EEAT ===== */
.eeat-section {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 32px;
  margin-top: 32px;
}

.eeat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.eeat-item {
  padding: 12px 0;
  border-bottom: 1px solid rgba(184, 134, 11, 0.1);
}

.eeat-item strong {
  display: block;
  font-weight: 600;
  margin-bottom: 4px;
}

/* ===== Sitemap ===== */
.sitemap-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}

.sitemap-links a {
  padding: 6px 0;
  display: block;
  font-size: 0.9rem;
  color: var(--text);
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.3s;
}

.sitemap-links a:hover {
  opacity: 1;
  color: var(--primary);
}

/* ===== Footer ===== */
.footer {
  background: linear-gradient(135deg, #1a1814, #2d2a24);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 30px;
}

.footer a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.3s;
}

.footer a:hover {
  color: var(--primary-light);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  margin-bottom: 40px;
}

.footer h4 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.footer ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.85rem;
}

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(184, 134, 11, 0.3);
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(184, 134, 11, 0.4);
}

/* ===== Scroll Reveal ===== */
.scroll-reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

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

  .nav-toggle {
    display: flex;
  }

  .navbar .container {
    height: 60px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .glass-card {
    padding: 20px;
  }

  .hero-banner {
    padding-top: 60px;
  }

  .banner-wrapper {
    min-height: 300px;
  }

  .banner-content h1 {
    font-size: 1.8rem;
  }

  .banner-content p {
    font-size: 1rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .back-to-top {
    bottom: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    font-size: 1.2rem;
  }

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

  .contact-info {
    grid-template-columns: 1fr;
  }

  .team-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .partner-item {
    padding: 12px 16px;
    font-size: 0.85rem;
  }

  section {
    padding: 60px 0;
  }

  .banner-slide {
    padding: 24px;
  }

  .search-box {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .banner-wrapper {
    min-height: 260px;
  }

  .banner-content h1 {
    font-size: 1.5rem;
  }

  .banner-content p {
    font-size: 0.95rem;
  }

  .stat-number {
    font-size: 2rem;
  }

  .container {
    padding: 0 16px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .glass-card {
    padding: 16px;
  }
}