/* 匠芯云链非遗文化技艺智能传承平台 - 中国风格 */

:root {
  --primary-blue: #1e3a8a;     /* 主蓝色 */
  --secondary-blue: #3b82f6;   /* 辅助蓝色 */
  --accent-blue: #60a5fa;      /* 强调蓝色 */
  --light-blue: #dbeafe;       /* 浅蓝色 */
  --dark-blue: #1e40af;        /* 深蓝色 */
  --chinese-gold: #f59e0b;     /* 金色点缀 */
  --chinese-black: #1f2937;    /* 深灰黑 */
  --chinese-white: #f8fafc;    /* 白色 */
  --text-gray: #374151;        /* 文字灰 */
}

/* 全局样式 */
body {
  font-family: "Source Han Sans CN", "思源黑体", "Noto Sans CJK SC", "Microsoft YaHei UI", "Microsoft YaHei", "黑体", "SimHei", "Helvetica Neue", "Arial", sans-serif;
  font-weight: 500;
  background-color: var(--chinese-white);
  color: var(--chinese-black);
  background-image: url('/static/img/paper_texture.png');
  background-repeat: repeat;
  line-height: 1.6;
}

/* 导航栏蓝色风格 */
.navbar-chinese {
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  box-shadow: 0 4px 20px rgba(30, 58, 138, 0.3);
  border-bottom: 3px solid var(--chinese-gold);
}

.navbar-chinese .navbar-brand {
  color: var(--chinese-white);
  font-weight: 700;
  font-family: "Source Han Sans CN", "思源黑体", "Microsoft YaHei UI", "黑体", sans-serif;
  font-size: 1.6rem;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
  letter-spacing: 1px;
}

.navbar-chinese .nav-link {
  color: var(--chinese-white) !important;
  font-family: "Source Han Sans CN", "思源黑体", "Microsoft YaHei UI", "黑体", sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  padding: 0.6rem 1.2rem;
  margin: 0 0.3rem;
  border-radius: 6px;
  transition: all 0.3s ease;
}

.navbar-chinese .nav-link:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.navbar-chinese .nav-link.active {
  background-color: rgba(255, 255, 255, 0.3);
  font-weight: 700;
}

/* 卡片蓝色风格 */
.card-chinese {
  border: none;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(30, 58, 138, 0.15);
  background-color: rgba(255, 255, 255, 0.95);
  margin-bottom: 30px;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card-chinese:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(30, 58, 138, 0.2);
}

.card-chinese::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--primary-blue), var(--secondary-blue), var(--accent-blue));
}

.card-chinese .card-header {
  background-color: rgba(248, 250, 252, 0.9);
  border-bottom: 1px solid #e2e8f0;
  padding: 18px 24px;
  font-family: "Source Han Sans CN", "思源黑体", "Microsoft YaHei UI", "黑体", sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--primary-blue);
  letter-spacing: 0.5px;
}

.card-chinese .card-body {
  padding: 24px;
}

/* 按钮蓝色风格 */
.btn-chinese {
  background: linear-gradient(135deg, var(--secondary-blue), var(--accent-blue));
  border: none;
  color: white;
  padding: 12px 24px;
  border-radius: 8px;
  font-family: "Source Han Sans CN", "思源黑体", "Microsoft YaHei UI", "黑体", sans-serif;
  font-weight: 600;
  font-size: 1rem;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.25);
  letter-spacing: 0.5px;
}

.btn-chinese:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.35);
  color: white;
}

.btn-chinese:active {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.25);
}

.btn-chinese-secondary {
  background: linear-gradient(135deg, var(--accent-blue), var(--secondary-blue));
  color: white;
}

.btn-chinese-outline {
  background: transparent;
  border: 2px solid var(--primary-blue);
  color: var(--primary-blue);
}

.btn-chinese-outline:hover {
  background-color: rgba(30, 58, 138, 0.1);
  color: var(--primary-blue);
  transform: translateY(-2px);
}

/* 页面标题蓝色风格 */
.chinese-title {
  font-family: "Source Han Sans CN", "思源黑体", "Microsoft YaHei UI", "黑体", sans-serif;
  font-weight: 800;
  color: var(--primary-blue);
  text-align: center;
  margin: 40px 0;
  font-size: 2.8rem;
  position: relative;
  padding-bottom: 20px;
  letter-spacing: 2px;
}

.chinese-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-blue), var(--chinese-gold), var(--primary-blue));
  border-radius: 2px;
}

.chinese-subtitle {
  font-family: "Source Han Sans CN", "思源黑体", "Microsoft YaHei UI", "黑体", sans-serif;
  font-weight: 600;
  color: var(--text-gray);
  text-align: center;
  font-size: 1.6rem;
  margin-bottom: 35px;
  letter-spacing: 1px;
}

/* 装饰元素 */
.chinese-divider {
  height: 15px;
  background-image: url('/static/img/chinese_pattern.png');
  background-repeat: repeat-x;
  margin: 30px 0;
  opacity: 0.7;
}

/* 聊天气泡蓝色风格 */
.chat-container-chinese {
  background-color: rgba(255, 255, 255, 0.95);
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 15px;
}

.chat-message-chinese {
  margin-bottom: 18px;
  padding: 15px 18px;
  border-radius: 12px;
  max-width: 85%;
  position: relative;
  font-family: "Source Han Sans CN", "思源黑体", "Microsoft YaHei UI", "黑体", sans-serif;
  font-weight: 500;
}

.user-message-chinese {
  background-color: rgba(30, 58, 138, 0.1);
  border-left: 4px solid var(--primary-blue);
  margin-left: auto;
  color: var(--chinese-black);
}

.bot-message-chinese {
  background-color: rgba(59, 130, 246, 0.08);
  border-left: 4px solid var(--secondary-blue);
  color: var(--chinese-black);
}

/* 图像上传区域蓝色风格 */
.upload-box-chinese {
  border: 3px dashed var(--secondary-blue);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  background-color: rgba(248, 250, 252, 0.8);
}

.upload-box-chinese:hover {
  border-color: var(--chinese-gold);
  background-color: rgba(219, 234, 254, 0.5);
  transform: translateY(-2px);
}

.upload-box-chinese i {
  color: var(--secondary-blue);
  font-size: 3rem;
  margin-bottom: 15px;
}

/* 知识图谱容器蓝色风格 */
.graph-container-chinese {
  height: 500px;
  width: 100%;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background-color: rgba(255, 255, 255, 0.95);
  padding: 15px;
  box-shadow: 0 8px 25px rgba(30, 58, 138, 0.15);
}

/* 页脚蓝色风格 */
.footer-chinese {
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
  color: var(--chinese-white);
  padding: 25px 0;
  text-align: center;
  border-top: 3px solid var(--chinese-gold);
  margin-top: 50px;
}

.footer-chinese p {
  font-family: "Source Han Sans CN", "思源黑体", "Microsoft YaHei UI", "黑体", sans-serif;
  font-weight: 500;
  margin-bottom: 0;
  letter-spacing: 0.5px;
}

/* 蓝色风格徽章 */
.badge-chinese {
  background: linear-gradient(135deg, var(--secondary-blue), var(--accent-blue));
  color: white;
  padding: 8px 16px;
  border-radius: 25px;
  font-family: "Source Han Sans CN", "思源黑体", "Microsoft YaHei UI", "黑体", sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  margin-right: 10px;
  margin-bottom: 10px;
  display: inline-block;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
  letter-spacing: 0.3px;
}

.badge-chinese-blue {
  background: linear-gradient(135deg, var(--secondary-blue), var(--accent-blue));
}

.badge-chinese-green {
  background: linear-gradient(135deg, #10b981, #059669);
}

.badge-chinese-gold {
  background: linear-gradient(135deg, var(--chinese-gold), #d97706);
  color: var(--chinese-black);
}

/* 首页特色区块 */
.feature-box {
  text-align: center;
  padding: 35px 25px;
  transition: all 0.3s ease;
  border-radius: 12px;
}

.feature-box:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(30, 58, 138, 0.15);
}

.feature-box i {
  font-size: 3.5rem;
  color: var(--secondary-blue);
  margin-bottom: 25px;
}

.feature-box h3 {
  font-family: "Source Han Sans CN", "思源黑体", "Microsoft YaHei UI", "黑体", sans-serif;
  font-weight: 700;
  color: var(--primary-blue);
  margin-bottom: 18px;
  font-size: 1.4rem;
  letter-spacing: 0.5px;
}

.feature-box p {
  color: var(--text-gray);
  font-weight: 500;
  line-height: 1.6;
}

/* 响应式调整 */
@media (max-width: 768px) {
  .chinese-title {
    font-size: 2.2rem;
  }
  
  .chinese-subtitle {
    font-size: 1.3rem;
  }
  
  .navbar-chinese .navbar-brand {
    font-size: 1.4rem;
  }
  
  .feature-box {
    padding: 25px 15px;
  }
  
  .card-chinese {
    margin-bottom: 20px;
  }
}