:root {
  --primary: #FF6A00;
  --primary-hover: #FF8533;
  --secondary: #FFA600;
  --accent: #FFD200;
  --text: #1A1C23;
  --text-muted: #5E616A;
  --bg: #F8F9FB;
  --white: #FFFFFF;
  --glass: rgba(255, 255, 255, 0.75);
  --gradient-main: linear-gradient(135deg, #FF6A00 0%, #FFA600 100%);
  --gradient-soft: linear-gradient(180deg, #FFFFFF 0%, #F1F4F9 100%);
  --font-base: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-heading: 'Sogou Sans', 'Inter', sans-serif;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 8rem;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --radius-pill: 50px;
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 10px 20px rgba(255, 106, 0, 0.12);
  --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.08);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-base);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

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

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

/* 布局系统 - 容器组件 */
.site-kazuw {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.site-wefimef {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.site-uhuwi {
  padding: var(--spacing-lg) 0;
  position: relative;
}

/* 导航区域 */
.site-veca {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--glass);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  height: 80px;
  display: flex;
  align-items: center;
  box-shadow: var(--shadow-sm); color: #1a1a2e;}

.site-xugupe {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.site-xugupe li a {
  font-weight: 500;
  color: var(--text);
  padding: 0.5rem 0;
  position: relative;
}

.site-xugupe li a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition); color: #ffffff;}

.site-xugupe li a:hover {
  color: var(--primary);
}

.site-xugupe li a:hover::after {
  width: 100%;
}

/* 展示区域 */
.site-pawu {
  padding-top: 140px;
  padding-bottom: var(--spacing-xl);
  background: radial-gradient(circle at top right, rgba(255, 166, 0, 0.1), transparent),
              radial-gradient(circle at bottom left, rgba(255, 106, 0, 0.05), transparent);
  text-align: center;
  position: relative;
  overflow: hidden; color: #1a1a2e;}

.site-pawu::before {
  content: '';
  position: absolute;
  width: 600px;
  height: 600px;
  background: var(--gradient-main);
  filter: blur(120px);
  opacity: 0.1;
  top: -200px;
  right: -100px;
  border-radius: 50%;
  z-index: -1; color: #1a1a2e;}

.site-udutuc {
  font-size: clamp(2.5rem, 5vw, 4rem);
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--spacing-sm);
  letter-spacing: -1px; color: #1a1a2e;}

.site-zuvacot {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--text-muted);
  max-width: 800px;
  margin: 0 auto var(--spacing-md);
  line-height: 1.8;
}

/* 卡片组件 */
.site-cawojih {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid rgba(0,0,0,0.02);
  display: flex;
  flex-direction: column;
  height: 100%; color: #1a1a2e;}

.site-cawojih:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 106, 0, 0.1);
}

.site-akoqumi {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  background: var(--bg); color: #1a1a2e;}

.site-akoqumi img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.site-cawojih:hover .site-akoqumi img {
  transform: scale(1.05);
}

/* 按钮组件 */
.site-ihojaqa {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-main);
  color: #1a1a2e;
  padding: 1rem 2.5rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 1.1rem;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.site-ihojaqa:hover {
  transform: scale(1.03);
  box-shadow: 0 15px 30px rgba(255, 106, 0, 0.25);
  filter: brightness(1.1);
}

.site-ihojaqa:active {
  transform: scale(0.98);
}

.site-sexocu {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--primary);
  padding: 0.85rem 2rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  border: 2px solid var(--primary);
  cursor: pointer;
  transition: var(--transition);
}

.site-sexocu:hover {
  background: rgba(255, 106, 0, 0.05);
  color: var(--primary-hover);
  border-color: var(--primary-hover);
}

/* 页脚区域 */
.site-ibotoba {
  background: #1A1C23;
  color: rgba(255, 255, 255, 0.8);
  padding: var(--spacing-lg) 0 var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.site-ugej {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.5);
}

/* 工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.d-flex { display: flex; }
.d-block { display: block; }
.d-none { display: none; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-4 { margin-top: var(--spacing-md); }

/* 响应式设计 */
@media (max-width: 1024px) {
  .site-kazuw { max-width: 90%; }
  .site-udutuc { font-size: 3rem; }
}

@media (max-width: 768px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }
  
  .site-veca {
    height: 70px;
  }
  
  .site-xugupe {
    display: none; /* 移动端应结合JS切换菜单 */
  }
  
  .site-pawu {
    padding-top: 110px;
    padding-bottom: var(--spacing-lg);
  }
  
  .site-udutuc {
    font-size: 2.2rem;
  }
  
  .site-zuvacot {
    font-size: 1rem;
    padding: 0 var(--spacing-sm);
  }

  .site-wefimef {
    flex-direction: column;
  }
  
  .site-ihojaqa, .site-sexocu {
    width: 100%;
    margin-bottom: var(--spacing-xs);
  }

  .site-uhuwi {
    padding: var(--spacing-md) 0;
  }
}

/* 核心视觉质感强化 */
.site-veca, .site-cawojih, .site-ihojaqa {
  -webkit-tap-highlight-color: transparent;
}

/* 有机流体图形辅助 */
.fluid-shape {
  position: absolute;
  z-index: -1;
  filter: blur(80px);
  opacity: 0.4;
  border-radius: 50%;
  background: var(--gradient-main); color: #1a1a2e;}

/* 强制图片比例规范 */
.hero-image-container {
  aspect-ratio: 16/9;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}