/* index.css */
/* Reset & Base */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
      background: linear-gradient(135deg, #202124 0%, #171717 100%);
      color: #e8eaed;
      line-height: 1.6;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    .container {
      flex: 1;
      max-width: 800px;
      margin: 0 auto;
      padding: 40px 20px;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 32px;
    }

    /* 头部标题优化 */
    .logo {
      text-align: center;
      margin-bottom: 16px;
    }

    .logo a {
      font-size: 2.5rem;
      font-weight: 700;
      color: #4285f4;
      text-decoration: none;
      display: inline-block;
      transition: all 0.3s ease;
      text-shadow: 0 2px 8px rgba(66, 133, 244, 0.3);
    }

    .logo a:hover {
      transform: translateY(-2px);
      text-shadow: 0 4px 16px rgba(66, 133, 244, 0.4);
    }

    /* 描述文字优化 */
    .tagline {
      max-width: 700px;
      text-align: center;
      font-size: 1.1rem;
      color: #bdc1c6;
      line-height: 1.7;
      padding: 24px;
      background: rgba(48, 49, 52, 0.6);
      border-radius: 16px;
      border: 1px solid rgba(95, 99, 104, 0.3);
      backdrop-filter: blur(10px);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }

    /* 搜索框优化 */
    .search-box {
      width: 100%;
      max-width: 600px;
      display: flex;
      gap: 12px;
      margin: 16px 0;
    }

    .search-box input {
      flex: 1;
      padding: 16px 20px;
      font-size: 1rem;
      background: #303134;
      border: 2px solid #5f6368;
      border-radius: 50px;
      color: #e8eaed;
      outline: none;
      transition: all 0.3s ease;
    }

    .search-box input:focus {
      border-color: #4285f4;
      box-shadow: 0 0 0 4px rgba(66, 133, 244, 0.1);
    }

    .search-box input::placeholder {
      color: #9aa0a6;
    }

    .search-box button {
      padding: 16px 32px;
      background: linear-gradient(135deg, #4285f4, #1a73e8);
      color: white;
      border: none;
      border-radius: 50px;
      font-size: 1rem;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 4px 12px rgba(66, 133, 244, 0.3);
    }

    .search-box button:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(66, 133, 244, 0.4);
    }

    /* 图片展示区域样式 */
    .image-section {
      width: 100%;
      max-width: 700px;
      display: flex;
      align-items: center;
      gap: 30px;
      padding: 32px;
      background: linear-gradient(135deg, rgba(48, 49, 52, 0.8), rgba(42, 43, 46, 0.8));
      border-radius: 20px;
      border: 1px solid rgba(95, 99, 104, 0.3);
      backdrop-filter: blur(15px);
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
      margin: 16px 0;
    }

    .image-container {
      flex: 1;
      min-width: 200px;
    }

    .image-container img {
      width: 100%;
      height: auto;
      border-radius: 12px;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
      transition: transform 0.3s ease;
    }

    .image-container img:hover {
      transform: scale(1.02);
    }

    .image-cta {
      flex: 1;
      min-width: 250px;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .image-cta h3 {
      font-size: 1.5rem;
      font-weight: 700;
      color: #4285f4;
      margin-bottom: 8px;
    }

    .image-cta p {
      color: #bdc1c6;
      font-size: 1rem;
      line-height: 1.6;
      margin-bottom: 8px;
    }

    .consult-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 16px 32px;
      background: linear-gradient(135deg, #34a853, #137333);
      color: white;
      border: none;
      border-radius: 50px;
      font-size: 1.1rem;
      font-weight: 600;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 4px 16px rgba(52, 168, 83, 0.3);
      align-self: flex-start;
    }

    .consult-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 24px rgba(52, 168, 83, 0.4);
      background: linear-gradient(135deg, #46b366, #0f7b0f);
    }

    .consult-btn svg {
      transition: transform 0.3s ease;
    }

    .consult-btn:hover svg {
      transform: translateX(4px);
    }

    /* 关键词卡片优化 */
    .keyword-cards {
      width: 100%;
      max-width: 700px;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 12px;
      margin-top: 24px;
    }

    .keyword-cards a {
      display: block;
      padding: 14px 20px;
      background: linear-gradient(135deg, #303134, #2a2b2e);
      color: #e8eaed;
      border: 1px solid #5f6368;
      border-radius: 12px;
      text-decoration: none;
      font-size: 0.95rem;
      font-weight: 500;
      transition: all 0.3s ease;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .keyword-cards a::before {
      content: '';
      position: absolute;
      top: 0;
      left: -100%;
      width: 100%;
      height: 100%;
      background: linear-gradient(90deg, transparent, rgba(66, 133, 244, 0.1), transparent);
      transition: left 0.5s ease;
    }

    .keyword-cards a:hover::before {
      left: 100%;
    }

    .keyword-cards a:hover {
      border-color: #4285f4;
      transform: translateY(-3px);
      box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
      background: linear-gradient(135deg, #3c3c3f, #383a3d);
    }

    /* 页脚优化 */
    footer {
      background: linear-gradient(135deg, #1a1a1a, #0f0f0f);
      padding: 40px 20px;
      text-align: center;
      border-top: 1px solid #333;
      margin-top: auto;
    }

    footer a {
      color: #9aa0a6;
      text-decoration: none;
      margin: 0 8px;
      padding: 8px 12px;
      border-radius: 8px;
      transition: all 0.3s ease;
      display: inline-block;
      font-size: 0.9rem;
    }

    footer a:hover {
      color: #4285f4;
      background: rgba(66, 133, 244, 0.1);
      transform: translateY(-1px);
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
      .container {
        padding: 20px 15px;
        gap: 24px;
      }

      .logo a {
        font-size: 2rem;
      }

      .tagline {
        font-size: 1rem;
        padding: 20px;
      }

      .image-section {
        flex-direction: column;
        gap: 20px;
        padding: 24px 20px;
      }

      .image-cta {
        text-align: center;
      }

      .image-cta h3 {
        font-size: 1.3rem;
      }

      .consult-btn {
        align-self: center;
        width: 100%;
        justify-content: center;
      }

      .search-box {
        flex-direction: column;
      }

      .search-box button {
        width: 100%;
      }

      .keyword-cards {
        grid-template-columns: 1fr;
        max-width: 100%;
      }

      footer {
        padding: 30px 15px;
      }

      footer a {
        display: block;
        margin: 4px 0;
      }
    }

    @media (max-width: 480px) {
      .logo a {
        font-size: 1.8rem;
      }

      .image-section {
        padding: 20px 16px;
      }

      .image-cta h3 {
        font-size: 1.2rem;
      }

      .image-cta p {
        font-size: 0.95rem;
      }

      .consult-btn {
        padding: 14px 24px;
        font-size: 1rem;
      }

      .search-box input,
      .search-box button {
        padding: 14px 18px;
      }

      .keyword-cards a {
        padding: 12px 16px;
        font-size: 0.9rem;
      }
    }

    /* 加载动画 */
    .container > * {
      animation: fadeInUp 0.6s ease forwards;
      opacity: 0;
      transform: translateY(20px);
    }

    .container > *:nth-child(1) { animation-delay: 0.1s; }
    .container > *:nth-child(2) { animation-delay: 0.2s; }
    .container > *:nth-child(3) { animation-delay: 0.3s; }
    .container > *:nth-child(4) { animation-delay: 0.4s; }

    @keyframes fadeInUp {
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }