/* 信达云科技 - 主样式文件 */
:root {
  /* AWS 品牌色彩 */
  --aws-orange: #FF9900;
  --aws-orange-dark: #EC7211;
  --aws-dark-blue: #232F3E;
  --aws-light-blue: #37475A;
  
  /* 基础色彩 */
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-gray: #f3f4f6;
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* 基础样式 */
html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* AWS 主题样式 */
.banner-gradient {
  background: linear-gradient(135deg, var(--aws-dark-blue) 0%, var(--aws-light-blue) 100%);
}

.aws-icon {
  color: var(--aws-orange);
  font-size: 2.5rem;
  margin-bottom: 1rem;
  transition: transform 0.3s ease;
}

.btn-aws {
  background-color: var(--aws-orange);
  color: white;
  transition: all 0.3s ease;
}

.btn-aws:hover {
  background-color: var(--aws-orange-dark);
  transform: translateY(-2px);
}

/* 卡片样式 */
.service-card, .case-card, .team-card {
  transition: all 0.3s ease;
  background: var(--bg-primary);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-md);
}

.service-card:hover, .case-card:hover, .team-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.service-card:hover .aws-icon {
  transform: scale(1.1);
}

/* 粒子效果容器 */
#particles-js {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  z-index: 0;
  pointer-events: none;
}

/* 导航栏样式 */
.nav-link {
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--aws-orange);
}

/* 移动端菜单 */
.mobile-menu {
  transition: all 0.3s ease;
}

/* 表单样式 */
.form-input {
  transition: all 0.3s ease;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
}

.form-input:focus {
  outline: none;
  border-color: var(--aws-orange);
  box-shadow: 0 0 0 3px rgba(255, 153, 0, 0.1);
}

/* 聊天机器人样式 */
.chatbot-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 350px;
  height: 500px;
  background: white;
  border-radius: 10px;
  box-shadow: var(--shadow-xl);
  display: none;
  flex-direction: column;
  z-index: 1000;
  overflow: hidden;
}

.chatbot-header {
  background: var(--aws-dark-blue);
  color: white;
  padding: 12px 15px;
  cursor: move;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.chatbot-body {
  flex: 1;
  padding: 15px;
  overflow-y: auto;
  background: var(--bg-secondary);
}

.bot-message {
  align-self: flex-start;
  background: white;
  padding: 10px 15px;
  border-radius: 15px 15px 15px 0;
  max-width: 80%;
  box-shadow: var(--shadow-sm);
  margin-bottom: 5px;
  animation: fadeIn 0.3s ease;
}

.user-message {
  align-self: flex-end;
  background: var(--aws-orange);
  color: white;
  padding: 10px 15px;
  border-radius: 15px 15px 0 15px;
  max-width: 80%;
  animation: fadeIn 0.3s ease;
}

.quick-question {
  background: #e6f1ff;
  color: var(--aws-dark-blue);
  padding: 5px 10px;
  border-radius: 15px;
  font-size: 12px;
  margin: 0 5px 5px 0;
  cursor: pointer;
  transition: all 0.3s ease;
}

.quick-question:hover {
  background: #d1e0ff;
}

/* 动画效果 */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .chatbot-container {
    width: 100%;
    height: 100%;
    bottom: 0;
    right: 0;
    border-radius: 0;
  }
  
  .aws-icon {
    font-size: 2rem;
  }
}

@media (max-width: 640px) {
  .service-card {
    padding: 1rem;
  }
}

/* 加载动画 */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 153, 0, 0.3);
  border-radius: 50%;
  border-top-color: var(--aws-orange);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 工具类 */
.text-aws-orange { color: var(--aws-orange); }
.bg-aws-orange { background-color: var(--aws-orange); }
.border-aws-orange { border-color: var(--aws-orange); }

/* 打印样式 */
@media print {
  .banner-gradient {
    background: white !important;
    color: black !important;
  }
  
  #particles-js, .chatbot-container {
    display: none !important;
  }
}