/* === 金沙娱乐城 style.css === */
/* 全局重置与变量 */
:root {
  --primary: #d4af37;
  --primary-dark: #b8962e;
  --primary-light: #f0d68a;
  --bg: #0a0a2e;
  --bg2: #0f0f3a;
  --bg3: #1a1a4a;
  --text: #f0f0f0;
  --text2: #c0c0d0;
  --glass: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.1);
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

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

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

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

.section {
  padding: 80px 0;
  position: relative;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
  color: var(--primary);
  letter-spacing: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--text2);
  font-size: 1.1rem;
  margin-bottom: 48px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* 毛玻璃效果 */
.glass {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* 按钮样式 */
.btn {
  display: inline-block;
  padding: 14px 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--bg);
  font-weight: 700;
  border-radius: 50px;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  letter-spacing: 1px;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(212,175,55,0.3);
  color: var(--bg);
}

/* 暗色模式 */
.dark-mode {
  --bg: #0a0a1e;
  --bg2: #0e0e2a;
  --bg3: #161640;
  --text: #e8e8f0;
  --text2: #b0b0c8;
}

/* 头部导航 */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10,10,46,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(212,175,55,0.15);
  transition: var(--transition);
}

header.scrolled {
  background: rgba(10,10,46,0.95);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 2px;
}

.logo svg {
  width: 40px;
  height: 40px;
}

.nav-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text2);
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(212,175,55,0.15);
  color: var(--primary);
}

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

.theme-toggle {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--primary);
  font-size: 1.2rem;
  transition: var(--transition);
}

.theme-toggle:hover {
  background: rgba(212,175,55,0.2);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--primary);
  font-size: 1.8rem;
  cursor: pointer;
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  width: 100%;
  background: rgba(10,10,46,0.98);
  backdrop-filter: blur(20px);
  padding: 20px;
  border-bottom: 1px solid rgba(212,175,55,0.2);
  z-index: 999;
}

.mobile-nav a {
  display: block;
  padding: 12px 16px;
  font-size: 1rem;
  color: var(--text2);
  border-radius: var(--radius-sm);
}

.mobile-nav a:hover {
  background: rgba(212,175,55,0.1);
  color: var(--primary);
}

/* Banner 区域 */
.banner {
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  margin-top: 0;
  padding-top: 70px;
}

.banner-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 1s ease;
}

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

.banner-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(212,175,55,0.12), transparent 70%),
              radial-gradient(ellipse at 70% 30%, rgba(10,10,46,0.9), transparent 60%);
  z-index: 0;
}

.banner-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 24px;
}

.banner-content h1 {
  font-size: 3.8rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--primary), #f5e6a3, var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.banner-content p {
  font-size: 1.2rem;
  color: var(--text2);
  margin-bottom: 36px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.banner-indicators {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 3;
}

.banner-indicators span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  cursor: pointer;
  transition: var(--transition);
}

.banner-indicators span.active {
  background: var(--primary);
  width: 32px;
  border-radius: 6px;
}

/* 网格布局 */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* 卡片样式 */
.card {
  background: var(--glass);
  backdrop-filter: blur(8px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(212,175,55,0.3);
}

.card-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--primary);
}

.card p {
  color: var(--text2);
  font-size: 0.95rem;
}

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

.stat-label {
  color: var(--text2);
  font-size: 0.95rem;
  margin-top: 4px;
}

/* FAQ 折叠 */
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 16px 0;
  cursor: pointer;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

.faq-question span {
  transition: var(--transition);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding-top: 0;
  color: var(--text2);
}

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

.faq-item.open .faq-question span {
  transform: rotate(180deg);
}

/* HowTo 步骤 */
.howto-step {
  display: flex;
  gap: 20px;
  margin-bottom: 32px;
  align-items: flex-start;
}

.howto-step-num {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--bg);
}

.howto-step h4 {
  font-size: 1.1rem;
  margin-bottom: 6px;
  color: var(--primary);
}

.howto-step p {
  color: var(--text2);
  font-size: 0.95rem;
}

/* 客户评价 */
.testimonial-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
}

.testimonial-card::before {
  content: '"';
  font-size: 4rem;
  color: var(--primary);
  opacity: 0.3;
  position: absolute;
  top: 8px;
  left: 20px;
  font-family: serif;
}

.testimonial-card p {
  font-style: italic;
  color: var(--text2);
  margin-bottom: 16px;
}

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

.testimonial-author svg {
  width: 44px;
  height: 44px;
  border-radius: 50%;
}

.testimonial-author strong {
  color: var(--text);
}

.testimonial-author span {
  color: var(--text2);
  font-size: 0.85rem;
}

/* 新闻卡片 */
.news-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-4px);
  border-color: rgba(212,175,55,0.3);
}

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

.news-card-body h4 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.news-card-body p {
  color: var(--text2);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.news-meta {
  display: flex;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text2);
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 0;
  font-size: 0.9rem;
  color: var(--text2);
}

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

.breadcrumb span {
  color: var(--text2);
}

/* 搜索框 */
.search-box {
  display: flex;
  max-width: 400px;
  margin: 0 auto 40px;
}

.search-box input {
  flex: 1;
  padding: 12px 20px;
  border: 1px solid var(--glass-border);
  border-radius: 50px 0 0 50px;
  background: var(--glass);
  color: var(--text);
  font-size: 1rem;
  outline: none;
}

.search-box button {
  padding: 12px 24px;
  background: var(--primary);
  border: none;
  border-radius: 0 50px 50px 0;
  color: var(--bg);
  font-weight: 700;
  cursor: pointer;
}

/* 页脚 */
.footer {
  background: var(--bg2);
  border-top: 1px solid rgba(212,175,55,0.1);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer h4 {
  color: var(--primary);
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.footer p,
.footer a {
  color: var(--text2);
  font-size: 0.9rem;
  line-height: 2;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text2);
}

/* 返回顶部按钮 */
.back-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--bg);
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(212,175,55,0.3);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}

.back-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-top:hover {
  transform: translateY(-4px);
}

/* 滚动动画 */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 响应式布局 - 平板 */
@media (max-width: 992px) {
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }
  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .banner-content h1 {
    font-size: 2.8rem;
  }
}

/* 响应式布局 - 手机 */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .mobile-menu-btn {
    display: block;
  }
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .section {
    padding: 48px 0;
  }
  .section-title {
    font-size: 1.8rem;
  }
  .banner-content h1 {
    font-size: 2.2rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .banner {
    min-height: 500px;
  }
}

/* 响应式布局 - 小屏手机 */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  .banner-content h1 {
    font-size: 1.8rem;
  }
  .btn {
    padding: 12px 28px;
    font-size: 0.9rem;
  }
}