/* 
 * 启橙 AI 生态平台 - 深邃科技风
 * 设计理念：科技 · 财富 · 生态
 * 视觉关键词：深邃、发光、层次、质感
 */

:root {
  /* 深邃背景色系 */
  --bg-deep: #0D1B2A;
  --bg-ocean: #1B3A57;
  --bg-navy: #1C3A52;
  
  /* 科技发光色 */
  --neon-blue: #00D4FF;
  --electric-blue: #0066FF;
  --cyber-purple: #7B61FF;
  
  /* 财富质感色 */
  --champagne-gold: #D4AF37;
  --amber-orange: #F59E0B;
  --emerald-green: #10B981;
  
  /* 中性色 */
  --text-white: #FFFFFF;
  --text-silver: #CBD5E1;
  --text-gray: #94A3B8;
  --border-subtle: rgba(255, 255, 255, 0.1);
  
  /* 阴影与光效 */
  --glow-blue: 0 0 40px rgba(0, 212, 255, 0.3);
  --glow-gold: 0 0 40px rgba(212, 175, 55, 0.3);
  --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --card-hover: 0 12px 48px rgba(0, 212, 255, 0.15);
}

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

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "SF Pro Display", -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-ocean) 100%);
  color: var(--text-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}

html {
  scroll-behavior: smooth;
  background: linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-ocean) 100%);
  min-height: 100vh;
}

/* 背景装饰 - 科技感网格 */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* 导航栏 - 深邃悬浮 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(13, 27, 42, 0.95);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0 5%;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.navbar .logo {
  font-size: 1.3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--neon-blue) 0%, var(--electric-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 1px;
  position: absolute;
  left: 5%;
}

.navbar .nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
  justify-content: center;
}

.navbar .nav-links a {
  color: var(--text-silver);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s;
  position: relative;
  padding: 8px 0;
}

.navbar .nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-blue), var(--electric-blue));
  transition: width 0.3s;
}

.navbar .nav-links a:hover,
.navbar .nav-links a.active {
  color: var(--text-white);
}

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

.navbar .menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 6px;
  position: absolute;
  right: 5%;
}

.navbar .menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-white);
  transition: 0.3s;
  border-radius: 2px;
}

/* 容器 */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
  position: relative;
  z-index: 1;
}

section {
  padding: 120px 0;
}

/* Banner - 深邃科技 */
.banner {
  margin-top: 64px;
  background: radial-gradient(ellipse at top, rgba(0, 212, 255, 0.15) 0%, transparent 60%),
              radial-gradient(ellipse at bottom, rgba(123, 97, 255, 0.1) 0%, transparent 60%);
  color: var(--text-white);
  padding: 140px 5%;
  text-align: center;
  min-height: 700px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.05) 0%, transparent 70%);
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 0.8; }
}

.banner-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.12;
  mix-blend-mode: overlay;
}

.banner-content {
  position: relative;
  z-index: 2;
  max-width: 1000px;
}

.banner h1 {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.1;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--text-white) 0%, var(--neon-blue) 50%, var(--electric-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 60px rgba(0, 212, 255, 0.3);
}

.banner .subtitle {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 400;
  margin-bottom: 16px;
  color: var(--text-silver);
  line-height: 1.5;
}

.banner .small-text {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--text-gray);
  margin-bottom: 48px;
  line-height: 1.8;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.banner-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.banner-buttons .btn {
  padding: 16px 40px;
  border-radius: 32px;
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  transition: all 0.4s;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

/* 按钮 - 科技发光 */
.btn-primary {
  background: linear-gradient(135deg, var(--electric-blue) 0%, var(--neon-blue) 100%);
  color: #FFFFFF;
  border: none;
  box-shadow: 0 4px 24px rgba(0, 102, 255, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 40px rgba(0, 212, 255, 0.6);
}

.btn-secondary {
  background: transparent;
  color: var(--text-white);
  border: 2px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--neon-blue);
  background: rgba(0, 212, 255, 0.1);
  transform: translateY(-3px);
}

/* 章节标题 */
.section-title {
  text-align: center;
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-white) 0%, var(--neon-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.section-subtitle {
  text-align: center;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--text-gray);
  max-width: 750px;
  margin: 0 auto 70px;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

/* 网格布局 */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  margin-top: 60px;
  position: relative;
  z-index: 1;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
  margin-top: 60px;
  position: relative;
  z-index: 1;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: 36px;
  margin-top: 60px;
  position: relative;
  z-index: 1;
}

/* 卡片 - 深邃悬浮 */
.card {
  background: linear-gradient(135deg, rgba(27, 58, 87, 0.6) 0%, rgba(13, 27, 42, 0.8) 100%);
  backdrop-filter: blur(20px);
  padding: 36px;
  border-radius: 24px;
  border: 1px solid var(--border-subtle);
  transition: all 0.4s;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neon-blue), var(--electric-blue), var(--cyber-purple));
  opacity: 0;
  transition: opacity 0.4s;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-hover);
  border-color: rgba(0, 212, 255, 0.3);
}

.card:hover::before {
  opacity: 1;
}

.card h3 {
  color: var(--text-white);
  margin-bottom: 12px;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.card p {
  color: var(--text-gray);
  line-height: 1.7;
  font-size: 1rem;
}

.card .icon {
  font-size: 3rem;
  margin-bottom: 20px;
  display: block;
  filter: drop-shadow(0 4px 12px rgba(0, 212, 255, 0.3));
}

/* 图片卡片 */
.image-card {
  border-radius: 24px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(27, 58, 87, 0.4) 0%, rgba(13, 27, 42, 0.9) 100%);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  transition: all 0.5s;
}

.image-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-hover);
  border-color: rgba(0, 212, 255, 0.3);
}

.image-card img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  transition: transform 0.5s;
  filter: brightness(0.9);
}

.image-card:hover img {
  transform: scale(1.06);
  filter: brightness(1);
}

.image-card-content {
  padding: 28px;
}

.image-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-white);
}

.image-card p {
  color: var(--text-gray);
  line-height: 1.6;
  font-size: 0.95rem;
}

/* 数据展示 */
.stats-section {
  background: linear-gradient(135deg, rgba(27, 58, 87, 0.3) 0%, rgba(13, 27, 42, 0.5) 100%);
  backdrop-filter: blur(20px);
  padding: 120px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 48px;
  margin-top: 60px;
}

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

.stat-number {
  display: block;
  font-size: clamp(3rem, 6vw, 4.5rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--neon-blue) 0%, var(--electric-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -2px;
  text-shadow: 0 0 40px rgba(0, 212, 255, 0.3);
}

.stat-label {
  font-size: 1.05rem;
  color: var(--text-gray);
  margin-top: 12px;
  font-weight: 500;
}

/* 高亮框 - 财富质感 */
.highlight-box {
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.08) 0%, rgba(245, 158, 11, 0.05) 100%);
  backdrop-filter: blur(20px);
  padding: 48px;
  border-radius: 24px;
  margin-top: 50px;
  border: 1px solid rgba(212, 175, 55, 0.2);
  position: relative;
  z-index: 1;
}

.highlight-box::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--champagne-gold), transparent);
}

.highlight-box p {
  font-size: 1.05rem;
  color: var(--text-silver);
  line-height: 1.8;
}

.highlight-box strong {
  color: var(--champagne-gold);
  font-weight: 700;
}

/* 表格 - 深邃风格 */
.table-container {
  overflow-x: auto;
  margin-top: 50px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(27, 58, 87, 0.4) 0%, rgba(13, 27, 42, 0.8) 100%);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
}

table {
  width: 100%;
  border-collapse: collapse;
}

table th,
table td {
  padding: 18px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

table th {
  background: rgba(0, 212, 255, 0.05);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--neon-blue);
}

table tr:last-child td {
  border-bottom: none;
}

table tr:hover td {
  background: rgba(0, 212, 255, 0.05);
}

table td strong {
  color: var(--text-white);
}

/* 底部 CTA - 科技光效 */
.bottom-cta {
  background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.15) 0%, transparent 70%);
  color: var(--text-white);
  padding: 120px 5%;
  text-align: center;
  margin-top: 80px;
  position: relative;
  z-index: 1;
}

.bottom-cta h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 40px;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--text-white) 0%, var(--neon-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bottom-cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

/* 页脚 - 深邃质感 */
.footer {
  background: rgba(13, 27, 42, 0.95);
  backdrop-filter: blur(20px);
  color: var(--text-gray);
  padding: 60px 5% 32px;
  font-size: 0.85rem;
  border-top: 1px solid var(--border-subtle);
  position: relative;
  z-index: 1;
}

.footer-disclaimer {
  background: rgba(255, 255, 255, 0.03);
  padding: 24px 28px;
  border-radius: 16px;
  margin-bottom: 32px;
  font-size: 0.8rem;
  line-height: 1.8;
  color: var(--text-gray);
  border: 1px solid var(--border-subtle);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-gray);
}

/* 动画 */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* 响应式 */
@media (max-width: 1024px) {
  .navbar .nav-links {
    gap: 1.5rem;
  }
  
  .grid-4, .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
  }
  
  .navbar .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(13, 27, 42, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px 5%;
    gap: 16px;
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    z-index: 1001;
  }
  
  .navbar .nav-links.active {
    display: flex;
    animation: slideDown 0.3s ease-out;
  }
  
  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .navbar .menu-toggle {
    display: flex;
    z-index: 1002;
    padding: 10px;
  }
  
  .navbar .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }
  
  .navbar .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .navbar .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }
  
  .banner {
    padding: 80px 5%;
    min-height: 500px;
    margin-top: 64px;
  }
  
  .banner h1 {
    font-size: 2rem;
    line-height: 1.3;
  }
  
  .banner .subtitle {
    font-size: 1.1rem;
    margin: 20px 0;
  }
  
  .banner .small-text {
    font-size: 0.9rem;
    margin-bottom: 24px;
  }
  
  .grid-4, .grid-3, .grid-2 {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .card {
    padding: 24px 20px;
  }
  
  .card .icon {
    font-size: 2.5rem;
  }
  
  .card h3, .card h4 {
    font-size: 1.2rem;
  }
  
  .card p {
    font-size: 0.9rem;
  }
  
  .section-title {
    font-size: 1.8rem;
    margin-bottom: 12px;
  }
  
  .section-subtitle {
    font-size: 1rem;
    margin-bottom: 40px;
  }
  
  .highlight-box {
    padding: 16px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  .highlight-box table {
    font-size: 0.85rem;
    min-width: 100%;
  }
  
  .highlight-box th,
  .highlight-box td {
    padding: 10px 8px;
    white-space: nowrap;
  }
  
  /* 表格滚动提示 */
  .highlight-box::after {
    content: '← 左右滑动 →';
    display: block;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-gray);
    margin-top: 12px;
    opacity: 0.6;
  }
  
  .banner-buttons,
  .bottom-cta-buttons {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  
  .banner-buttons .btn,
  .bottom-cta-buttons .btn {
    width: 100%;
    max-width: 300px;
    padding: 14px 28px;
    font-size: 1rem;
  }
  
  .bottom-cta h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
  }
  
  .container {
    padding: 0 20px;
  }
  
  section {
    padding: 60px 0;
  }
  
  .footer-disclaimer {
    font-size: 0.75rem;
    padding: 20px;
  }
  
  .footer-bottom p {
    font-size: 0.8rem;
  }
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
  .banner h1 {
    font-size: 1.6rem;
  }
  
  .banner .subtitle {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 1.5rem;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 0.95rem;
  }
  
  .card {
    padding: 20px 16px;
  }
}

/* 文字溢出处理 */
.card h3,
.card h4,
.card p {
  overflow-wrap: break-word;
  word-wrap: break-word;
  hyphens: auto;
}

/* 防止长单词溢出 */
td, th {
  max-width: 200px;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--neon-blue), var(--electric-blue));
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--electric-blue), var(--neon-blue));
}