body {
      margin: 0;
      padding: 0;
      font-family: 'Inter', sans-serif;
    }

    html {
      scroll-behavior: smooth;
    }

    
    /* 导航栏样式-Start */
    .navbar {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 100;
      transition: background-color 0.3s ease, box-shadow 0.3s ease;
    }

    .navbar-inner {
      max-width: 1200px;
      margin: 0 auto;
      padding: 1.25rem 2rem;
      display: flex;
      justify-content: space-between;
      align-items: center;
      transition: padding 0.3s ease;
    }

    .navbar.scrolled {
      background-color: rgba(255, 255, 255, 0.8);
      backdrop-filter: blur(8px);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    }

    .navbar.scrolled .navbar-inner {
      padding-top: 0.75rem;
      padding-bottom: 0.75rem;
    }

    /* 文字Logo样式 */
    .nav-logo {
      font-size: 1.75rem;
      font-weight: 700;
      color: #000000;
      letter-spacing: -0.025em;
      transition: font-size 0.3s ease;
    }

    .navbar.scrolled .nav-logo {
      font-size: 1.5rem;
    }

    .nav-links {
      display: flex;
      gap: 2.5rem;
    }

    /* 链接样式 */
    .nav-link {
      color: #333;
      text-decoration: none;
      font-weight: 500;
      padding: 0.3rem 0;
      font-size: 0.95rem;
      display: flex;
      align-items: center;
      transition: color 0.3s ease;
    }
    
    .nav-link:hover {
      color: #1890FF;
      transition: color 0.2s ease;
    }

    /* 注册按钮 */
    .nav-link-register {
      background-color: #1890FF;
      color: white;
      padding: 0.65rem 1rem;
      border-radius: 0.3rem;
      font-weight: 350;
      display: flex;
      align-items: center;
      font-size: 0.95rem;
      text-decoration: none;
      transition: background-color 0.3s ease;
    }
    
    .nav-link-register:hover {
      background-color: #0081fa;
      text-decoration: none;
    }

    .nav-toggle {
      display: none;
      font-size: 1.5rem;
      cursor: pointer;
    }

    .nav-toggle:hover {
      transform: rotate(90deg);
    }

    /* 背景图片 */
    .bg-container {
      position: relative;
      background-image: url('../img/banner-center-bg.png');
      background-repeat: no-repeat;
      background-position: center;
      background-size: cover;
      background-color: rgba(0, 0, 0, 0.4);
      height: 600px;
      width: 100%;
      overflow: hidden;
      padding-top: 3rem;
    }

    /* 图片底部模糊效果（模糊过渡） */
    .bg-container::after {
      content: '';
      position: absolute;
      bottom: 0;
      left: 0;
      width: 100%;
      height: 80px;
      background: linear-gradient(to top, rgba(255,255,255,0.9) 0%, rgba(255,255,255,0) 60%);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      z-index: 1;
    }

    /* 主标题（派小星DNS那个） */
    .hero-title {
      position: absolute;
      top: 48%;
      left: 50%;
      transform: translate(-50%, -50%);
      text-align: center;
      z-index: 20;
      width: 90%;
      max-width: 1200px;
    }

    .hero-title h1 {
      font-size: clamp(2rem, 6vw, 3.5rem);
      font-weight: 750;
      color: #0E2545;
      margin: 0;
      line-height: 1.1;
      letter-spacing: -0.02em;
    }

    /* 副标题 */
    .hero-title p {
      font-size: clamp(1rem, 2.5vw, 1.25rem);
      color: #3E516A;
      margin-top: 1.5rem;
      margin-bottom: 4rem;
      max-width: 800px;
      font-weight: 380;
      margin-left: auto;
      margin-right: auto;
    }

    /* 按钮样式 */
    .btn {
      display: inline-block;
      font-size: clamp(1rem, 2.5vw, 1.2rem);
      background-color: #1890FF;
      color: white;
      padding: 0.75rem 2.8rem;
      border-radius: 0.375rem;
      text-decoration: none;
      font-weight: 350;
      transition: all 0.3s ease;
    }

    .btn:hover {
      background-color: #0081fa;
    }

    /* 页面内容区域 */
    .content-section {
      max-width: 1200px;
      margin: 0 auto;
      padding: 2rem 2rem;
    }

    .content-title-container {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 1rem;
      margin-bottom: 1rem;
    }
    
    .title-icon {
      width: 40px;
      height: 40px;
    }
    
    .content-title {
      font-size: 2.5rem;
      font-weight: bold;
      text-align: center;
      position: relative;
    }
    
    .content-title::after {
      content: '';
      display: block;
      width: 120px;
      height: 4px;
      background: #1890FF;
      margin: 0.5rem auto 0;
    }

    .content-subtitle {
      font-size: 1.1rem;
      color: #555;
      margin-bottom: 3rem;
      text-align: center;
      max-width: 800px;
      margin-left: auto;
      margin-right: auto;
    }

    /* 内容卡片 */
    .content-card {
      background-color: white;
      padding: 1.5rem;
      border-radius: 0.5rem;
      box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
      transition: all 0.3s ease;
      text-align: center;
    }

    .content-card-p {
      color: #555;
      font-size: 0.95rem;
    }
    
    .feature-icon {
      width: 40px;
      height: 40px;
      margin: 0 auto 1rem;
      display: block;
    }

    .content-card:hover {
      box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
      transform: translateY(-5px);
    }

    .grid-container {
      display: grid;
      grid-template-columns: 1fr;
      gap: 1.5rem;
    }

    .solution-section {
      min-height: 700px;
      position: relative;
      background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('../img/index-solution-bg-CpeDE92Z.png') no-repeat center center;
      background-size: cover;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      margin-top: 5rem;
    }

    .solution-container {
      height: 100%;
      width: 100%;
      overflow-y: auto;
    }

    .solution-inner {
      max-width: 1200px;
      margin: 0 auto;
      height: 100%;
      overflow-y: auto;
      box-sizing: border-box;
    }

    .solution-title {
      font-size: 2.5rem;
      font-weight: bold;
      text-align: center;
      color: white;
      padding-top: 5rem;
      margin-bottom: 10px;
    }

    .solution-subtitle {
      font-size: 16px;
      text-align: center;
      color: white;
      margin-bottom: 40px;
    }

    .solution-tabs-wrapper {
      position: relative;
      display: flex;
      justify-content: center;
      flex-wrap: wrap;
      gap: 20px;
    }

    .solution-tab {
      background-color: transparent;
      border: none;
      padding: 10px 20px;
      font-size: 16px;
      color: white;
      cursor: pointer;
      position: relative;
      z-index: 1;
    }

    .solution-tab:focus {
      outline: none;
    }

    .solution-tab-indicator {
      position: absolute;
      height: 3px;
      background-color: white;
      bottom: 0;
      left: 0;
      width: 100px;
      transition: 0.3s ease;
      z-index: 0;
    }

    .solution-panel {
      display: none;
      text-align: left;
      border-radius: 12px;
      padding: 30px;
      min-height: 220px;
    }

    .solution-panel.solution-show {
      display: block;
    }

    .solution-panel h2 {
      font-size: 38px;
      margin-bottom: 10px;
      color: white;
    }

    .solution-panel p {
      font-size: 14px;
      line-height: 1.8;
      color: rgb(223, 223, 223);
    }

    .solution-panel h4 {
      font-size: 16px;
      line-height: 1;
      color: white;
      font-weight: 400;
    }

    .solution-cards {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 20px;
      margin-top: 20px;
    }

    .solution-card {
      background-color: rgba(255, 255, 255, 0.1);
      padding: 20px;
      border-radius: 10px;
    }

    .solution-card h3 {
      margin-bottom: 10px;
      color: white;
    }

    .price-section {
      padding: 60px 20px;
      background-color: #f9f9f9;
      padding-bottom: 8rem;
    }

    .price-container {
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
      width: 100%;
    }

    .price-title {
      font-size: 2.5rem;
      font-weight: bold;
      color: #000000;
      margin-bottom: 40px;
    }

    .price-cards {
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      justify-content: center;
    }

    .price-card {
      background-color: #fff;
      border-radius: 12px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.06);
      width: 100%;
      max-width: 340px;
      overflow: hidden;
      text-align: left;
      display: flex;
      flex-direction: column;
    }

    .price-card-header {
      padding: 20px;
      color: #fff;
    }

    .price-basic .price-card-header {
      background-color: #66BB6A;
    }

    .price-pro .price-card-header {
      background-color: #42A5F5;
    }

    .price-advanced .price-card-header {
      background-color: #EF5350;
    }

    .price-card-title {
      font-size: 20px;
      font-weight: bold;
      position: relative;
    }

    .price-card-title::after {
      content: "";
      display: block;
      width: 30px;
      height: 3px;
      background: #fff;
      margin-top: 10px;
    }

    .price-card-body {
      padding: 20px;
      color: #333;
    }

    .price-card-body p {
      font-size: 24px;
      margin-bottom: 20px;
    }

    .price-list {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .price-list li {
      margin-bottom: 10px;
      font-size: 15px;
    }

    .popular-badge {
      position: absolute;
      top: 0;
      right: 0;
      background-color: #FFD700;
      color: #333;
      padding: 0.25rem 0.75rem;
      border-bottom-left-radius: 0.5rem;
      font-size: 0.875rem;
      font-weight: 550;
      z-index: 10;
    }
    
    .price-card {
      position: relative;
    }
    
    .discount {
      border: 1px solid #2ecc71;
      color: #2ecc71;
      padding: 2px 6px;
      border-radius: 4px;
      font-size: 0.8em;
      display: inline-block;
      margin-top: 10px;
    }

    .footer-light {
        background-color: #f9f9f9;
        color: #333;
        padding: 60px 20px 30px;
        font-family: "Segoe UI", sans-serif;
        border-top: 4px solid #1890FF;
    }

    .footer-container {
        max-width: 1200px;
        margin: auto;
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 60px;
        padding-bottom: 30px;
    }

    .footer-brand {
        max-width: 400px;
    }

    .logo-text {
        font-size: 40px;
        font-weight: 700;
        color: #000000;
        margin-bottom: 10px;
    }

    .site-desc {
        font-size: 14px;
        line-height: 1.6;
        margin-bottom: 15px;
        color: #555;
    }

    .contact {
        font-size: 14px;
        color: #666;
    }

    .footer-columns {
        display: flex;
        gap: 40px;
        flex-wrap: wrap;
    }

    .footer-column {
        min-width: 150px;
    }

    .footer-column h3 {
        font-size: 16px;
        color: #1890FF;
        margin-bottom: 12px;
    }

    .footer-column ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .footer-column li {
        margin-bottom: 8px;
    }

    .footer-column a {
        text-decoration: none;
        color: #333;
        font-size: 14px;
        transition: color 0.3s;
    }

    .footer-column a:hover {
        color: #1890FF;
    }

    .footer-links {
        max-width: 1200px;
        margin: 30px auto 10px;
        text-align: center;
        font-size: 14px;
        color: #777;
    }

    .footer-links a {
        color: #1890FF;
        text-decoration: none;
        margin: 0 5px;
    }

    .footer-bottom {
        text-align: center;
        font-size: 13px;
        color: #aaa;
        margin-top: 10px;
    }

    .footer-bottom a {
        color: #1890FF;
        text-decoration: none;
    }

    @media (max-width: 768px) {
      .footer-container {
        flex-direction: column;
        gap: 40px;
        align-items: center;
        text-align: center;
      }

      .footer-columns,
      .nav-links {
        display: none;
      }

      .footer-brand {
        max-width: 100%;
      }

      .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        padding: 1.5rem 2rem;
        box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
        transform: translateY(-10px);
        opacity: 0;
        transition: all 0.3s ease;
      }

      .nav-links.active {
        display: flex;
        transform: translateY(0);
        opacity: 1;
      }

      .nav-link {
        padding: 0.75rem 0;
        font-size: 1.1rem;
      }

      .nav-toggle {
        display: block;
      }

      .solution-tab-indicator {
        bottom: auto;
        top: 100%;
      }
    }

    @media (min-width: 768px) and (max-width: 1200px) {
      .grid-container {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (min-width: 1200px) {
      .grid-container {
        grid-template-columns: repeat(4, 1fr);
      }
    }

    /* 返回顶部按钮样式 */
    .back-to-top {
      position: fixed;
      bottom: 30px;
      right: 30px;
      width: 50px;
      height: 50px;
      background-color: #1890FF;
      color: white;
      border: none;
      border-radius: 50%;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
      opacity: 0;
      transition: all 0.3s ease;
      z-index: 1000;
    }

    .back-to-top.visible {
      opacity: 1;
    }

    .back-to-top:hover {
      background-color: #0E77E0;
      transform: translateY(-2px);
    }

   /* 套餐定价样式 - 现代化简约风格 */
    .pricing-section {
      padding: 100px 20px;
      background: #ffffff;
      position: relative;
    }

    .pricing-container {
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
    }

    .pricing-title {
      font-size: 2.5rem;
      font-weight: 600;
      color: #000000;
      margin-bottom: 12px;
      letter-spacing: -0.02em;
    }

    .pricing-subtitle {
      font-size: 1rem;
      color: #888;
      margin-bottom: 60px;
      font-weight: 400;
    }

    .pricing-cards {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 24px;
      margin-top: 0;
      align-items: stretch;
    }

    .pricing-card {
      background: #ffffff;
      border-radius: 8px;
      padding: 48px 32px;
      text-align: center;
      position: relative;
      transition: all 0.2s ease;
      border: 1px solid #e5e5e5;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
      display: flex;
      flex-direction: column;
    }

    .pricing-card:hover {
      border-color: #d0d0d0;
      box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    }

    .pricing-popular {
      border: 1px solid #1890FF;
      box-shadow: 0 2px 8px rgba(24, 144, 255, 0.12);
    }

    .pricing-popular:hover {
      border-color: #1890FF;
      box-shadow: 0 6px 16px rgba(24, 144, 255, 0.16);
    }

    .pricing-badge {
      position: absolute;
      top: 24px;
      right: 24px;
      background: #1890FF;
      color: white;
      padding: 4px 12px;
      border-radius: 4px;
      font-size: 0.75rem;
      font-weight: 500;
      letter-spacing: 0.02em;
    }

    .pricing-card h3 {
      font-size: 1.5rem;
      font-weight: 600;
      color: #000000;
      margin-bottom: 32px;
      margin-top: 0;
      letter-spacing: -0.01em;
    }

    .pricing-price {
      margin-bottom: 40px;
    }

    .pricing-currency {
      font-size: 1.25rem;
      color: #666;
      vertical-align: top;
      font-weight: 500;
    }

    .pricing-amount {
      font-size: 3rem;
      font-weight: 600;
      color: #000000;
      line-height: 1;
      margin: 0 2px;
      letter-spacing: -0.03em;
    }

    .pricing-period {
      font-size: 1rem;
      color: #888;
      font-weight: 400;
    }

    .pricing-features {
      list-style: none;
      padding: 0;
      margin: 0 0 40px 0;
      flex-grow: 1;
    }

    .pricing-features li {
      padding: 16px 0;
      color: #555;
      position: relative;
      padding-left: 36px;
      text-align: left;
      font-size: 0.9375rem;
      font-weight: 400;
      border-bottom: 1px solid #f5f5f5;
      transition: all 0.2s ease;
      line-height: 1.5;
    }

    .pricing-features li:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }

    .pricing-features li:first-child {
      padding-top: 0;
    }

    .pricing-features li:before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 16px;
      width: 22px;
      height: 22px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #f0f7ff;
      color: #1890FF;
      border-radius: 50%;
      font-size: 0.7rem;
      font-weight: 700;
      line-height: 1;
      flex-shrink: 0;
    }

    .pricing-features li:first-child:before {
      top: 0;
    }

    .pricing-popular .pricing-features li:before {
      background: #e6f4ff;
      color: #1890FF;
    }

    .pricing-button {
      display: inline-block;
      padding: 12px 32px;
      background: #000000;
      color: white;
      text-decoration: none;
      border-radius: 4px;
      font-weight: 500;
      transition: all 0.2s ease;
      margin-top: auto;
      font-size: 0.9375rem;
      border: 1px solid #000000;
      box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
    }

    .pricing-button:hover {
      background: #333333;
      border-color: #333333;
      color: white;
      text-decoration: none;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.16);
    }

    .pricing-button-popular {
      background: #1890FF;
      border-color: #1890FF;
      box-shadow: 0 1px 4px rgba(24, 144, 255, 0.2);
    }

    .pricing-button-popular:hover {
      background: #40a9ff;
      border-color: #40a9ff;
      box-shadow: 0 2px 8px rgba(24, 144, 255, 0.3);
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
      .pricing-section {
        padding: 60px 16px;
      }

      .pricing-cards {
        grid-template-columns: 1fr;
        gap: 20px;
      }

      .pricing-card {
        padding: 40px 24px;
      }

      .pricing-title {
        font-size: 2rem;
      }

      .pricing-subtitle {
        font-size: 0.9375rem;
        margin-bottom: 40px;
      }

      .pricing-amount {
        font-size: 2.5rem;
      }

      .pricing-card h3 {
        font-size: 1.375rem;
        margin-bottom: 24px;
      }

      .pricing-badge {
        top: 20px;
        right: 20px;
        font-size: 0.6875rem;
        padding: 3px 10px;
      }

      .pricing-price {
        margin-bottom: 32px;
      }

      .pricing-features {
        margin-bottom: 32px;
      }
    }