/* 金沙国际 - 金沙娱乐 - 完整样式表 */
:root {
  --bg: #f8f9fc;
  --text: #1a1a2e;
  --card: #ffffff;
  --glass: rgba(255, 255, 255, 0.6);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  --primary: #1a1a2e;
  --accent: #f0c040;
  --accent2: #e94560;
  --radius: 20px;
  --transition: 0.3s ease;
  --gradient-bg: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 50%, #16213e 100%);
  --gradient-btn: linear-gradient(135deg, #f0c040, #e6b800);
  --gradient-card: linear-gradient(145deg, rgba(240, 192, 64, 0.05), rgba(26, 26, 46, 0.03));
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* 全局重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background var(--transition), color var(--transition);
  min-height: 100vh;
}

/* 暗黑模式 */
body.dark {
  --bg: #0f0f1a;
  --text: #e8e8f0;
  --card: #1a1a2e;
  --glass: rgba(20, 20, 40, 0.7);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* 链接 */
a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity var(--transition);
}

a:hover {
  opacity: 0.85;
}

/* 图片和SVG */
img,
svg {
  max-width: 100%;
  display: block;
  height: auto;
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 毛玻璃效果 */
.glass {
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* 按钮基础 */
.btn {
  display: inline-block;
  padding: 14px 36px;
  border-radius: 50px;
  background: var(--gradient-btn);
  color: #1a1a2e;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.3s;
  box-shadow: 0 4px 20px rgba(240, 192, 64, 0.3);
  text-align: center;
  font-size: 1rem;
  line-height: 1.2;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(240, 192, 64, 0.4);
  background: linear-gradient(135deg, #e6b800, #d4a800);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(240, 192, 64, 0.3);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
  box-shadow: none;
}

.btn-outline:hover {
  background: var(--accent);
  color: #1a1a2e;
  box-shadow: 0 4px 20px rgba(240, 192, 64, 0.3);
}

/* 标题 */
.section-title {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section-sub {
  font-size: 1.1rem;
  opacity: 0.7;
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

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

/* 网格布局 */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

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

/* 卡片 */
.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
  transition: transform 0.3s, box-shadow 0.3s, background var(--transition);
}

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

.card h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  font-weight: 700;
}

.card p {
  font-size: 0.95rem;
  opacity: 0.85;
  line-height: 1.6;
}

/* 徽章 */
.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(240, 192, 64, 0.15);
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

/* 淡入动画 */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 暗黑模式切换按钮 */
.dark-toggle {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s, box-shadow 0.3s, background var(--transition);
}

.dark-toggle:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.dark-toggle svg {
  width: 26px;
  height: 26px;
  fill: var(--text);
  transition: fill var(--transition);
}

/* 回到顶部按钮 */
.scroll-top {
  position: fixed;
  bottom: 100px;
  right: 30px;
  z-index: 999;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: #1a1a2e;
  transition: transform 0.3s, box-shadow 0.3s;
}

.scroll-top:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}

/* 头部导航 */
header.glass {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 20px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

header .logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

header .logo svg {
  border-radius: 12px;
}

header .logo span {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

header nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-weight: 500;
}

header nav a {
  color: var(--text);
  transition: color var(--transition);
  font-size: 0.95rem;
}

header nav a:hover {
  color: var(--accent);
}

header nav .btn {
  padding: 10px 28px;
  font-size: 0.9rem;
}

/* Hero区域 */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 20px 80px;
  background: var(--gradient-bg);
  color: #fff;
  position: relative;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(240, 192, 64, 0.08), transparent 70%);
  pointer-events: none;
}

#hero::after {
  content: '';
  position: absolute;
  bottom: -10%;
  left: -5%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(233, 69, 96, 0.06), transparent 70%);
  pointer-events: none;
}

#hero .container {
  position: relative;
  z-index: 2;
}

#hero h1 {
  font-size: 4rem;
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

#hero h1 span {
  color: var(--accent);
}

#hero p {
  font-size: 1.3rem;
  max-width: 700px;
  margin: 0 auto 36px;
  opacity: 0.85;
}

#hero .badge {
  background: rgba(240, 192, 64, 0.2);
  color: #f0c040;
  font-size: 0.9rem;
  padding: 6px 20px;
  margin-bottom: 24px;
}

#hero .stats {
  margin-top: 60px;
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  opacity: 0.7;
  font-size: 0.95rem;
}

/* 品牌故事 */
#about {
  padding: 100px 0;
}

#about .glass {
  padding: 40px;
  border-radius: 24px;
  background: var(--gradient-card);
}

#about .stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

#about .stats-grid h3 {
  font-size: 2.2rem;
  color: var(--accent);
  margin-bottom: 4px;
}

#about .stats-grid p {
  font-size: 0.95rem;
  opacity: 0.7;
}

/* 企业文化 */
#culture {
  padding: 80px 0;
  background: var(--card);
}

/* 发展历程时间线 */
#history {
  padding: 80px 0;
}

#history .timeline {
  position: relative;
  margin-top: 60px;
  padding: 0 20px;
}

#history .timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--accent);
  transform: translateX(-50%);
}

#history .timeline-item {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-bottom: 40px;
}

#history .timeline-item:nth-child(odd) {
  justify-content: flex-end;
  padding-right: calc(50% + 40px);
  text-align: right;
}

#history .timeline-item:nth-child(even) {
  justify-content: flex-start;
  padding-left: calc(50% + 40px);
}

#history .timeline-item .glass {
  padding: 20px;
  border-radius: 16px;
  width: 100%;
}

#history .timeline-item h3 {
  font-size: 1.3rem;
  color: var(--accent);
  margin-bottom: 6px;
}

#history .timeline-item p {
  font-size: 0.95rem;
  opacity: 0.8;
}

/* 产品中心 */
#products {
  padding: 100px 0;
  background: var(--card);
}

#products .card div:first-child {
  font-size: 3rem;
  margin-bottom: 16px;
}

/* 产品优势 */
#advantages {
  padding: 80px 0;
}

#advantages .card div:first-child {
  font-size: 2.4rem;
  margin-bottom: 12px;
}

/* 解决方案 */
#solutions {
  padding: 80px 0;
  background: var(--card);
}

/* 行业应用 */
#industry {
  padding: 80px 0;
}

/* 服务体系 */
#services {
  padding: 80px 0;
  background: var(--card);
}

#services .card div:first-child {
  font-size: 2.4rem;
  margin-bottom: 12px;
}

/* 合作伙伴 */
#partners {
  padding: 80px 0;
}

#partners .partner-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  margin-top: 40px;
  opacity: 0.7;
}

#partners .partner-list span {
  font-size: 1.2rem;
  font-weight: 600;
  background: var(--card);
  padding: 12px 28px;
  border-radius: 12px;
  transition: transform 0.3s, box-shadow 0.3s;
}

#partners .partner-list span:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

/* 客户案例 */
#cases {
  padding: 80px 0;
  background: var(--card);
}

#cases .card div:first-child {
  font-size: 2rem;
  margin-bottom: 12px;
}

/* 客户评价 */
#testimonials {
  padding: 80px 0;
}

#testimonials .card p {
  font-style: italic;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* 新闻中心 */
#news {
  padding: 80px 0;
  background: var(--card);
}

#news .card span {
  font-size: 0.9rem;
  opacity: 0.6;
}

#news .card h3 {
  margin: 8px 0;
}

/* 相关文章 */
#articles {
  padding: 80px 0;
}

/* FAQ */
#faq {
  padding: 80px 0;
  background: var(--card);
}

#faq .container {
  max-width: 800px;
}

#faq .card {
  margin-bottom: 16px;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
}

#faq .card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

#faq .card .faq-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

#faq .card .faq-header h3 {
  font-size: 1.05rem;
  font-weight: 600;
}

#faq .card .faq-header span {
  font-size: 1.5rem;
  transition: transform 0.3s;
}

#faq .card .faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, margin-top 0.4s ease;
  margin-top: 0;
  font-size: 0.95rem;
  opacity: 0.85;
}

/* 快速上手 */
#howto {
  padding: 80px 0;
}

#howto .card div:first-child {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 12px;
}

/* 联系我们 */
#contact {
  padding: 100px 0;
  background: var(--card);
}

/* 页脚 */
footer {
  background: var(--primary);
  color: #ccc;
  padding: 60px 20px 30px;
}

footer .grid-4 {
  margin-bottom: 40px;
}

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

footer p {
  font-size: 0.9rem;
  opacity: 0.8;
}

footer ul {
  list-style: none;
}

footer ul li {
  margin-bottom: 8px;
}

footer ul li a {
  color: #aaa;
  font-size: 0.9rem;
  transition: color var(--transition);
}

footer ul li a:hover {
  color: var(--accent);
}

footer .footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
}

/* 搜索输入框 */
.search-input {
  padding: 8px 16px;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: var(--card);
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(240, 192, 64, 0.2);
}

.search-input::placeholder {
  color: #999;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  #hero h1 {
    font-size: 3.2rem;
  }

  #hero p {
    font-size: 1.1rem;
  }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .section-sub {
    font-size: 1rem;
    margin-bottom: 30px;
  }

  header.glass {
    height: 64px;
    padding: 0 16px;
  }

  header .logo span {
    font-size: 1.2rem;
  }

  header nav {
    gap: 16px;
    font-size: 0.85rem;
  }

  header nav a:not(.btn) {
    display: none;
  }

  header nav .btn {
    padding: 8px 20px;
    font-size: 0.8rem;
  }

  #hero {
    padding: 100px 16px 60px;
  }

  #hero h1 {
    font-size: 2.4rem;
  }

  #hero p {
    font-size: 1rem;
  }

  #hero .stats {
    gap: 24px;
    font-size: 0.85rem;
  }

  #about {
    padding: 60px 0;
  }

  #about .glass {
    padding: 24px;
  }

  #about .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  #about .stats-grid h3 {
    font-size: 1.6rem;
  }

  #culture {
    padding: 60px 0;
  }

  #history {
    padding: 60px 0;
  }

  #history .timeline::before {
    left: 20px;
  }

  #history .timeline-item {
    flex-direction: column;
    align-items: flex-start;
    padding-left: 50px !important;
    padding-right: 0 !important;
    text-align: left !important;
    gap: 16px;
  }

  #history .timeline-item .glass {
    width: 100%;
  }

  #products {
    padding: 60px 0;
  }

  #advantages {
    padding: 60px 0;
  }

  #solutions {
    padding: 60px 0;
  }

  #industry {
    padding: 60px 0;
  }

  #services {
    padding: 60px 0;
  }

  #partners {
    padding: 60px 0;
  }

  #partners .partner-list {
    gap: 16px;
  }

  #partners .partner-list span {
    font-size: 1rem;
    padding: 10px 20px;
  }

  #cases {
    padding: 60px 0;
  }

  #testimonials {
    padding: 60px 0;
  }

  #news {
    padding: 60px 0;
  }

  #articles {
    padding: 60px 0;
  }

  #faq {
    padding: 60px 0;
  }

  #howto {
    padding: 60px 0;
  }

  #contact {
    padding: 60px 0;
  }

  footer {
    padding: 40px 16px 20px;
  }

  footer .grid-4 {
    gap: 24px;
  }

  footer .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .dark-toggle {
    width: 44px;
    height: 44px;
    bottom: 20px;
    right: 20px;
  }

  .dark-toggle svg {
    width: 22px;
    height: 22px;
  }

  .scroll-top {
    width: 38px;
    height: 38px;
    bottom: 80px;
    right: 20px;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  header.glass {
    height: 56px;
    padding: 0 12px;
  }

  header .logo span {
    font-size: 1rem;
  }

  header nav {
    gap: 10px;
  }

  header nav .btn {
    padding: 6px 16px;
    font-size: 0.75rem;
  }

  #hero {
    padding: 80px 12px 40px;
  }

  #hero h1 {
    font-size: 1.8rem;
  }

  #hero p {
    font-size: 0.9rem;
    margin-bottom: 24px;
  }

  #hero .btn {
    font-size: 0.9rem;
    padding: 12px 32px;
  }

  #hero .stats {
    margin-top: 40px;
    gap: 16px;
    font-size: 0.8rem;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .card {
    padding: 20px;
  }

  .card h3 {
    font-size: 1.05rem;
  }

  .card p {
    font-size: 0.9rem;
  }

  #about .stats-grid h3 {
    font-size: 1.4rem;
  }

  #history .timeline-item {
    padding-left: 40px !important;
  }

  #history .timeline-item .glass {
    padding: 16px;
  }

  .btn {
    padding: 12px 28px;
    font-size: 0.9rem;
  }

  .search-input {
    width: 120px;
    padding: 6px 12px;
    font-size: 0.8rem;
  }
}

/* 打印样式 */
@media print {
  header.glass,
  .dark-toggle,
  .scroll-top,
  #hero .btn,
  footer {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .card {
    box-shadow: none;
    border: 1px solid #ddd;
  }

  .glass {
    background: #f5f5f5;
    backdrop-filter: none;
    border: 1px solid #ddd;
  }
}

/* 辅助功能 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 焦点样式 */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #d4a800;
}

/* 暗黑模式下的滚动条 */
body.dark ::-webkit-scrollbar-track {
  background: #1a1a2e;
}

body.dark ::-webkit-scrollbar-thumb {
  background: #f0c040;
}

body.dark ::-webkit-scrollbar-thumb:hover {
  background: #d4a800;
}