/* ============================================
   Microsoft Fluent Design Style
   简洁、现代、轻盈的视觉体验
   ============================================ */

/* Hero区域 - 移除大色块，采用简洁风格 */
#hero {
  background: linear-gradient(180deg, #1A1A1A 0%, #2A2A2A 100%);
  padding-top: 120px; /* 为固定导航栏预留空间 */
}

.hero-bg {
  display: none; /* 移除复杂的背景效果 */
}

/* 优化highlight文字 - 使用纯色橙色，避免背景色块问题 */
.hero-title .highlight {
  color: #FF6B35;
  background: none;
  -webkit-background-clip: initial;
  -webkit-text-fill-color: initial;
  background-clip: initial;
}

/* 更轻盈的卡片阴影 */
.service-card {
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04) !important;
  border: 1px solid rgba(0,0,0,0.06);
}

.service-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.08) !important;
  transform: translateY(-2px);
}

/* 移除卡片底部的大色块 */
.service-card::before {
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
}

/* 更大的圆角和更柔和的阴影 */
.case-card {
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.case-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

/* 客户Logo卡片 */
.client-logo {
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.03);
  border: 1px solid rgba(0,0,0,0.06);
}

.client-logo:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  transform: translateY(-2px);
}

/* 按钮风格 - 更简洁 */
.btn {
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.08);
  transition: all 0.2s ease;
}

.btn-primary:hover {
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.25);
  transform: translateY(-1px);
}

.btn-outline-dark {
  border-radius: 4px;
}

/* 导航栏 - 始终使用白色背景，与LOGO背景一致 */
#navbar {
  background: #FFFFFF;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

#navbar.scrolled {
  background: #FFFFFF;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

/* 导航链接始终使用深色 */
.nav-link {
  color: var(--text-primary) !important;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent) !important;
  background: rgba(255, 107, 53, 0.08) !important;
}

/* 英雄标题 - 更简洁 */
.hero-title {
  letter-spacing: -0.02em;
  font-weight: 700;
}

.hero-badge {
  background: rgba(255, 107, 53, 0.08);
  border: 1px solid rgba(255, 107, 53, 0.15);
  color: var(--accent);
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: 4px;
}

/* Section标题 */
.section-header h2 {
  letter-spacing: -0.02em;
  font-weight: 600;
}

.section-tag {
  border-radius: 4px;
  font-size: 0.8125rem;
}

/* 案例卡片 - 更简洁的视觉效果 */
.case-sector {
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* 联系表单 */
.contact-form {
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.06);
}

.form-control {
  border-radius: 4px;
  border: 1px solid rgba(0,0,0,0.1);
}

.form-control:focus {
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.08);
}

/* 解决方案Tab */
.tab-btn {
  border-radius: 4px;
  font-weight: 500;
}

.tab-btn.active {
  background: rgba(255, 107, 53, 0.08);
  border-bottom-color: var(--accent);
}

/* 优势卡片 */
.advantage-card {
  border-radius: 8px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.04);
}

.advantage-card:hover {
  background: rgba(255,255,255,0.04);
  border-color: rgba(255,107,53,0.15);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.advantage-icon {
  border-radius: 8px;
}

/* CTA横幅 */
#cta {
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(255, 107, 53, 0.2);
}

/* 页脚 */
.footer-grid {
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

/* 移除过多的装饰元素 */
.hero-dots,
.hero-grid {
  display: none;
}

/* 更简洁的排版 */
.display-xl { letter-spacing: -0.025em; font-weight: 700; }
.display-lg { letter-spacing: -0.02em; font-weight: 600; }
.display-md { letter-spacing: -0.015em; font-weight: 600; }

/* 增加留白 */
.section { padding: 80px 0; }
.section-header { margin-bottom: 3rem; }

/* 解决方案展示卡片 */
.solution-showcase {
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.08);
}

.solution-showcase::before {
  display: none;
}

.module-item {
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.06);
}

/* 响应式优化 */
@media (max-width: 768px) {
  .section { padding: 60px 0; }
  
  .hero-title {
    font-size: 2.5rem;
  }
}