/* 基础重置 */
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      html {
        font-size: 16px;
      }

      body {
        font-family: "Noto Sans SC", "微软雅黑", sans-serifkt;
        line-height: 1.6;
        color: #333;
        -webkit-text-size-adjust: 100%;
        -moz-text-size-adjust: 100%;
        -ms-text-size-adjust: 100%;
        text-size-adjust: 100%;
      }

      .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 15px;
      }

      /* 导航样式 */
      .navbar {
        background: #667eea;
        padding: 12px 0;
        position: sticky;
        top: 0;
        z-index: 1000;
      }

      .navbar .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
      }

      .logo {
        font-size: 1.2rem;
        font-weight: bold;
        color: white;
        display: flex;
        align-items: center;
        gap: 8px;
      }

      .nav-links {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
      }

      .nav-links a {
        color: white;
        text-decoration: none;
        font-size: 0.9rem;
        padding: 5px 10px;
        border-radius: 5px;
      }

      .nav-links a:hover,
      .nav-links a.active {
        background: rgba(255, 255, 255, 0.2);
      }

      /* 面包屑导航 */
      .breadcrumb {
        background: #f5f5f5;
        padding: 12px 0;
        font-size: 0.85rem;
      }

      .breadcrumb a {
        color: #667eea;
        text-decoration: none;
      }

      .breadcrumb a:hover {
        text-decoration: underline;
      }

      /* 术语详情页头 */
      .term-header {
        background: linear-gradient(135deg,
            rgba(102, 126, 234, 0.9) 0%,
            rgba(118, 75, 162, 0.9) 100%);
        color: white;
        padding: 30px 0;
        margin-bottom: 30px;
        text-align: center;

      }

      .term-header h1 {
        font-size: 2.2rem;
        margin-bottom: 15px;
        text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
      }

      .term-header .term-origin {
        font-size: 1rem;
        background: rgba(255, 255, 255, 0.2);
        padding: 8px 15px;
        border-radius: 20px;
        display: inline-block;
      }

      /* 多语言表述 */
      .language-expressions {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 15px;
        margin-bottom: 30px;
      }

      .language-card {
        background: #f9f9f9;
        border-radius: 10px;
        padding: 20px;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        text-align: center;
      }

      .language-card h3 {
        font-size: 1.3rem;
        margin-bottom: 12px;
        color: #667eea;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
      }

      .language-card .expression {
        font-size: 1.1rem;
        font-weight: bold;
        margin: 10px 0;
        padding: 8px;
        background: white;
        border-radius: 8px;
      }

      .language-card .pronunciation {
        color: #666;
        font-size: 0.9rem;
        margin-top: 5px;
      }

      /* 详细介绍内容区域样式 */
      .content-section {
        margin-bottom: 30px;
        padding: 25px;
        background: white;
        border-radius: 10px;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      }

      .content-section h2 {
        font-size: 1.5rem;
        margin-bottom: 20px;
        color: #667eea;
        display: flex;
        align-items: center;
        gap: 10px;
      }

      .content-section p {
        margin-bottom: 15px;
        line-height: 1.7;
      }

      .content-section ul,
      .content-section ol {
        margin-left: 20px;
        margin-bottom: 15px;
      }

      .content-section li {
        margin-bottom: 8px;
        line-height: 1.6;
      }

      .content-section strong {
        color: #667eea;
      }

      /* 图片展示区 - 升级简洁自适应 */
      .image-gallery {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 20px;
        margin-bottom: 30px;
      }

      /* 当图片画廊中只有一个项目时，居中显示 */
      .image-gallery:has(.image-item:only-child) {
        display: flex;
        justify-content: center;
        align-items: center;
        grid-template-columns: unset;
        /* 取消网格布局 */
      }

      .image-gallery:has(.image-item:only-child) .image-item {
        max-width: 600px;
        /* 控制单张图片的最大宽度 */
        width: 100%;
      }

      .image-item {
        background: white;
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
        transition: transform 0.3s ease;
      }

      .image-item:hover {
        transform: translateY(-3px);
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
      }

      /* 根据图片数量自适应布局 */
      .image-gallery:has(.image-item:only-child) {
        grid-template-columns: 1fr;
        /* 1张图片时全宽 */
      }

      .image-gallery:has(.image-item:nth-child(1):nth-last-child(2)),
      .image-gallery:has(.image-item:nth-child(2):nth-last-child(1)) {
        grid-template-columns: repeat(2, 1fr);
        /* 2张图片时各占一半 */
      }

      .image-gallery:has(.image-item:nth-child(1):nth-last-child(3)),
      .image-gallery:has(.image-item:nth-child(3):nth-last-child(1)) {
        grid-template-columns: repeat(3, 1fr);
        /* 3张图片时各占1/3 */
      }

      /* 单张图片特殊处理 - 居中并增大 */
      .image-gallery:has(.image-item:only-child) .image-item {
        max-width: 600px;
        margin: 0 auto;
      }

      .image-gallery:has(.image-item:only-child) .image-container {
        height: 400px;
        /* 单张图片时高度更大 */
      }

      /* 图片容器 - 自适应比例 */
      .image-container {
        width: 100%;
        height: 360px;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 15px;
        background: #f9f9f9;
        overflow: hidden;
      }

      .image-container img {
        max-width: 100%;
        max-height: 100%;
        width: auto;
        height: auto;
        object-fit: contain;
        border-radius: 6px;
      }

      /* 简洁描述文字 */
      .image-caption {
        padding: 15px;
        text-align: center;
        font-size: 0.95rem;
        color: #666;
        background: white;
        min-height: 60px;
        display: flex;
        align-items: center;
        justify-content: center;
      }

      /* 响应式调整 */
      @media (max-width: 992px) {
        html {
          font-size: 15px;
        }

        .term-header h1 {
          font-size: 2rem;
        }

        .language-expressions {
          grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        }

        .image-gallery {
          grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        }
      }

      @media (max-width: 768px) {
        html {
          font-size: 14px;
        }

        .term-header {
          padding: 25px 0;
        }

        .term-header h1 {
          font-size: 1.8rem;
        }

        .language-expressions {
          grid-template-columns: 1fr;
          gap: 12px;
        }

        .language-card {
          padding: 15px;
        }

        .language-card h3 {
          font-size: 1.2rem;
        }

        .content-section h2 {
          font-size: 1.5rem;
        }

        .related-techniques {
          grid-template-columns: repeat(2, 1fr);
        }

        .navbar .container {
          flex-direction: column;
          gap: 10px;
        }

        .nav-links {
          gap: 8px;
        }

        .nav-links a {
          font-size: 0.85rem;
          padding: 4px 8px;
        }

        .logo {
          font-size: 1.1rem;
        }
      }

      @media (max-width: 576px) {
        html {
          font-size: 13px;
        }

        .term-header h1 {
          font-size: 1.6rem;
          padding: 0 10px;
        }

        .content-section h2 {
          font-size: 1.4rem;
        }

        .related-techniques {
          grid-template-columns: 1fr;
        }

        .nav-links a {
          font-size: 0.8rem;
          padding: 3px 6px;
        }

        .container {
          padding: 0 10px;
        }

        .footer-links {
          gap: 15px;
        }
      }

      @media (max-width: 360px) {
        html {
          font-size: 12px;
        }

        .term-header h1 {
          font-size: 1.4rem;
        }

        .nav-links {
          flex-direction: column;
          align-items: center;
        }

        .nav-links a {
          font-size: 0.85rem;
        }
      }

      /* 图片区域的响应式调整 */
      @media (max-width: 768px) {
        .image-gallery {
          grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
          gap: 15px;
        }

        .image-container {
          height: 360px;
          padding: 12px;
        }

        .image-caption {
          padding: 12px;
          min-height: 50px;
        }
      }

      @media (max-width: 480px) {
        .image-gallery {
          grid-template-columns: 1fr;
        }

        .image-container {
          height: 240px;
        }
      }

      @media (max-width: 768px) {

        .image-gallery:has(.image-item:nth-child(1):nth-last-child(2)),
        .image-gallery:has(.image-item:nth-child(2):nth-last-child(1)),
        .image-gallery:has(.image-item:nth-child(1):nth-last-child(3)),
        .image-gallery:has(.image-item:nth-child(3):nth-last-child(1)) {
          grid-template-columns: 1fr;
          /* 小屏幕上单列显示 */
        }
      }

      /* 相关技术 */
      .related-techniques {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 15px;
        margin-bottom: 30px;
      }

      .related-card {
        background: #f9f9f9;
        border-radius: 10px;
        padding: 20px;
        text-align: center;
        text-decoration: none;
        color: #333;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        transition: all 0.3s ease;
        border: 2px solid transparent;
      }

      .related-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
        border-color: #667eea;
        color: #667eea;
      }

      .related-card h4 {
        font-size: 1.2rem;
        margin-bottom: 5px;
      }

      .related-card p {
        font-size: 0.9rem;
        color: #666;
      }

      /* 返回按钮 */
      .back-button {
        display: inline-block;
        background: #667eea;
        color: white;
        padding: 12px 25px;
        border-radius: 30px;
        text-decoration: none;
        font-size: 1rem;
        margin: 30px 0;
        transition: all 0.3s ease;
      }

      .back-button:hover {
        background: #5568d2;
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
      }

      /* 页脚 */
      .footer {
        background: #333;
        color: white;
        padding: 30px 0;
        margin-top: 50px;
      }

      .footer-links {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 20px;
        margin-bottom: 20px;
      }

      .footer-links a {
        color: white;
        text-decoration: none;
        font-size: 0.95rem;
      }

      .footer-links a:hover {
        color: #667eea;
      }

      .footer p {
        text-align: center;
        font-size: 0.9rem;
        color: #aaa;
      }

      /* 响应式调整 */
      @media (max-width: 768px) {
        .term-header h1 {
          font-size: 1.8rem;
        }

        .content-section {
          padding: 20px;
        }

        .image-gallery {
          grid-template-columns: 1fr;
        }
      }