*{margin:0;padding:0;box-sizing:border-box;}
    html{scroll-behavior:smooth;}
    body{
      font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
      background: #0b0a12;
      background-image: radial-gradient(circle at 20% 30%, #1e1030 0%, #0b0a12 70%);
      color: #f0ecf5;
      line-height: 1.5;
      -webkit-font-smoothing: antialiased;
      min-height: 100vh;
    }
    .container{
      width: 100%;
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
    }
    /* 暗夜赛博粉紫主色调 */
    :root{
      --bg-dark: #0b0a12;
      --card-bg: rgba(22, 18, 36, 0.8);
      --card-border: rgba(188, 95, 255, 0.25);
      --primary: #c13aff;
      --primary-glow: #e06eff;
      --secondary: #ff3f9a;
      --text-main: #f2edff;
      --text-sub: #c2b6d9;
      --btn-hover: #9f2af0;
    }
    /* 通用卡片 */
    .card{
      background: var(--card-bg);
      backdrop-filter: blur(8px);
      border: 1px solid var(--card-border);
      border-radius: 24px;
      box-shadow: 0 15px 35px rgba(0,0,0,0.6), 0 0 0 1px rgba(193, 58, 255, 0.1) inset;
      transition: transform 0.25s ease, box-shadow 0.3s ease, border-color 0.2s;
    }
    .card:hover{
      transform: translateY(-6px);
      border-color: #b44eff;
      box-shadow: 0 24px 45px rgba(193, 58, 255, 0.25), 0 0 0 1px #c13aff inset;
    }
    /* 标题 */
    h1, h2, h3, h4{
      font-weight: 700;
      letter-spacing: -0.02em;
      color: #fff;
    }
    h1{
      font-size: clamp(2.2rem, 5vw, 3.8rem);
      line-height: 1.2;
    }
    h2{
      font-size: clamp(1.8rem, 4vw, 2.6rem);
      margin-bottom: 1rem;
      background: linear-gradient(135deg, #f0ecf5 0%, #d9b3ff 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    h3{
      font-size: 1.3rem;
      margin-bottom: 0.5rem;
    }
    /* 按钮 */
    .btn{
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 28px;
      border-radius: 60px;
      font-weight: 600;
      font-size: 1rem;
      transition: all 0.25s ease;
      border: none;
      cursor: pointer;
      text-decoration: none;
      background: linear-gradient(135deg, #c13aff 0%, #ff3f9a 100%);
      color: #fff;
      box-shadow: 0 8px 20px rgba(193, 58, 255, 0.4);
    }
    .btn:hover{
      transform: scale(1.02);
      box-shadow: 0 12px 28px rgba(255, 63, 154, 0.6);
    }
    .btn-outline{
      background: transparent;
      border: 1.5px solid #c13aff;
      color: #e0b3ff;
      box-shadow: none;
    }
    .btn-outline:hover{
      background: rgba(193, 58, 255, 0.15);
      border-color: #e06eff;
      color: #fff;
    }
    /* 导航 */
    header{
      padding: 18px 0;
      position: sticky;
      top: 0;
      z-index: 100;
      backdrop-filter: blur(16px);
      background: rgba(11, 10, 18, 0.8);
      border-bottom: 1px solid rgba(193, 58, 255, 0.2);
    }
    .nav-wrap{
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }
    .logo{
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .logo img{
      height: 38px;
      width: auto;
    }
    .nav-links{
      display: flex;
      gap: 0;
      align-items: center;
      flex-wrap: wrap;
    }
    .nav-links a{
      color: #d9ccf0;
      text-decoration: none;
      font-size: 0.95rem;
      font-weight: 500;
      padding: 6px 14px;
      border-radius: 40px;
      transition: color 0.2s, background 0.2s;
    }
    .nav-links a:hover{
      color: #fff;
      background: rgba(193, 58, 255, 0.2);
    }
    .nav-actions{
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .mobile-toggle{
      display: none;
      background: none;
      border: none;
      color: #fff;
      font-size: 1.8rem;
      cursor: pointer;
    }
    /* Hero */
    .hero{
      padding: 60px 0 70px;
      position: relative;
      overflow: hidden;
    }
    .hero::before{
      content: '';
      position: absolute;
      top: -20%;
      left: -10%;
      width: 500px;
      height: 500px;
      background: radial-gradient(circle, rgba(193,58,255,0.25) 0%, transparent 70%);
      filter: blur(60px);
      z-index: 0;
      pointer-events: none;
    }
    .hero-content{
      position: relative;
      z-index: 2;
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }
    .hero-badge{
      display: inline-block;
      background: rgba(193, 58, 255, 0.18);
      backdrop-filter: blur(4px);
      border: 1px solid rgba(193, 58, 255, 0.6);
      border-radius: 40px;
      padding: 6px 18px;
      font-size: 0.85rem;
      font-weight: 500;
      color: #e0b0ff;
      margin-bottom: 24px;
      letter-spacing: 0.3px;
    }
    .hero h1{
      margin-bottom: 20px;
      text-shadow: 0 0 25px rgba(193, 58, 255, 0.5);
    }
    .hero-desc{
      font-size: 1.15rem;
      color: #cfc1e8;
      max-width: 720px;
      margin: 0 auto 32px;
      line-height: 1.6;
    }
    .hero-btns{
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      justify-content: center;
      margin-bottom: 46px;
    }
    .hero-stats{
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 28px 48px;
      margin-top: 24px;
    }
    .stat-item{
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 4px;
    }
    .stat-num{
      font-size: 2rem;
      font-weight: 800;
      background: linear-gradient(135deg, #e7b3ff, #ff8fc6);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }
    .stat-label{
      font-size: 0.9rem;
      color: #bba9da;
    }
    /* 通用section */
    .section{
      padding: 70px 0;
      position: relative;
      z-index: 2;
    }
    .section-header{
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px;
    }
    .section-header p{
      color: #bba9da;
      font-size: 1.05rem;
      margin-top: 12px;
    }
    /* 网格/卡片通用 */
    .grid-3{
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 26px;
    }
    .grid-2{
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      gap: 28px;
    }
    .service-card{
      padding: 30px 22px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .service-icon{
      font-size: 2.2rem;
      background: linear-gradient(135deg, #c13aff, #ff3f9a);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      font-weight: 700;
      margin-bottom: 6px;
    }
    .service-card h3{
      font-size: 1.25rem;
      margin: 0;
    }
    .service-card p{
      color: #c5b7dd;
      font-size: 0.95rem;
      line-height: 1.5;
      flex-grow: 1;
    }
    /* 对比表格 */
    .compare-table-wrap{
      overflow-x: auto;
      border-radius: 24px;
      border: 1px solid var(--card-border);
      background: rgba(15, 12, 24, 0.7);
      margin-top: 20px;
    }
    table{
      width: 100%;
      border-collapse: collapse;
      min-width: 760px;
    }
    th, td{
      padding: 18px 20px;
      text-align: left;
      border-bottom: 1px solid rgba(193, 58, 255, 0.2);
    }
    th{
      background: rgba(193, 58, 255, 0.15);
      color: #f0d9ff;
      font-weight: 600;
      font-size: 0.95rem;
      white-space: nowrap;
    }
    td{
      color: #d1c4e9;
      font-size: 0.95rem;
    }
    tr:last-child td{
      border-bottom: none;
    }
    .rating{
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .stars{
      color: #ffb83a;
      letter-spacing: 2px;
      font-size: 1.2rem;
    }
    /* FAQ */
    .faq-item{
      border-bottom: 1px solid rgba(193, 58, 255, 0.2);
      padding: 8px 0;
    }
    .faq-question{
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 16px 0;
      font-weight: 600;
      font-size: 1.05rem;
      color: #f0e6ff;
      cursor: pointer;
      transition: color 0.2s;
    }
    .faq-question:hover{
      color: #e090ff;
    }
    .faq-question span{
      font-size: 1.4rem;
      font-weight: 300;
      transition: transform 0.25s;
    }
    .faq-answer{
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease, padding 0.2s;
      color: #b9a8d6;
      font-size: 0.95rem;
      padding-right: 24px;
    }
    .faq-item.active .faq-answer{
      max-height: 200px;
      padding-bottom: 16px;
    }
    .faq-item.active .faq-question span{
      transform: rotate(45deg);
    }
    /* 用户评论 */
    .review-card{
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .review-header{
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .review-avatar{
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: linear-gradient(135deg, #c13aff, #ff3f9a);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      color: #fff;
      font-size: 1.2rem;
    }
    .review-name{
      font-weight: 600;
      color: #fff;
    }
    .review-role{
      font-size: 0.8rem;
      color: #b39edb;
    }
    .review-text{
      color: #ccbee6;
      font-size: 0.95rem;
      line-height: 1.6;
    }
    .review-stars{
      color: #ffb83a;
      letter-spacing: 2px;
    }
    /* 表单 */
    .form-group{
      margin-bottom: 20px;
    }
    label{
      display: block;
      font-size: 0.9rem;
      font-weight: 500;
      color: #d9c6ff;
      margin-bottom: 8px;
    }
    input, select, textarea{
      width: 100%;
      padding: 14px 16px;
      border-radius: 16px;
      border: 1px solid rgba(193, 58, 255, 0.4);
      background: rgba(22, 18, 36, 0.9);
      color: #f0ecf5;
      font-size: 1rem;
      transition: border 0.2s, box-shadow 0.2s;
    }
    input:focus, select:focus, textarea:focus{
      outline: none;
      border-color: #d06eff;
      box-shadow: 0 0 0 3px rgba(193, 58, 255, 0.2);
    }
    textarea{
      min-height: 120px;
      resize: vertical;
    }
    /* 页脚 */
    footer{
      border-top: 1px solid rgba(193, 58, 255, 0.2);
      padding: 46px 0 24px;
      background: rgba(8, 6, 15, 0.7);
      color: #bfb0da;
    }
    .footer-grid{
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
      gap: 36px;
      margin-bottom: 36px;
    }
    .footer-col h4{
      color: #e3d2ff;
      margin-bottom: 16px;
      font-size: 1.05rem;
    }
    .footer-col a, .footer-col p{
      color: #bfb0da;
      text-decoration: none;
      font-size: 0.9rem;
      line-height: 1.9;
      display: block;
    }
    .footer-col a:hover{
      color: #e7b3ff;
    }
    .footer-bottom{
      border-top: 1px solid rgba(193, 58, 255, 0.15);
      padding-top: 22px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 16px;
      font-size: 0.85rem;
    }
    /* 浮动客服 */
    .float-kefu{
      position: fixed;
      bottom: 30px;
      right: 30px;
      z-index: 200;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .kefu-btn{
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: linear-gradient(135deg, #c13aff, #ff3f9a);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-size: 1.6rem;
      box-shadow: 0 8px 24px rgba(193, 58, 255, 0.6);
      cursor: pointer;
      transition: transform 0.2s;
      border: none;
      text-decoration: none;
    }
    .kefu-btn:hover{
      transform: scale(1.1);
    }
    .kefu-panel{
      background: #171224;
      border: 1px solid #c13aff;
      border-radius: 20px;
      padding: 16px;
      max-width: 260px;
      box-shadow: 0 20px 40px rgba(0,0,0,0.8);
      display: none;
    }
    .kefu-panel.show{
      display: block;
    }
    .kefu-panel img{
      width: 100%;
      border-radius: 12px;
      margin: 8px 0;
    }
    /* 移动端 */
    @media (max-width: 900px){
      .nav-links{
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: flex-start;
        padding: 12px 0;
        gap: 4px;
      }
      .nav-links.open{
        display: flex;
      }
      .nav-links a{
        width: 100%;
        padding: 10px 16px;
      }
      .mobile-toggle{
        display: block;
      }
      .nav-actions{
        margin-left: auto;
      }
    }
    @media (max-width: 600px){
      .section{
        padding: 50px 0;
      }
      .hero-stats{
        gap: 20px 28px;
      }
      .stat-num{
        font-size: 1.6rem;
      }
    }
    /* 动画 */
    .fade-in{
      opacity: 0;
      transform: translateY(28px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }
    .fade-in.visible{
      opacity: 1;
      transform: translateY(0);
    }
    /* 图片通用 */
    .responsive-img{
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: 16px;
    }
    .gallery-img{
      width: 100%;
      border-radius: 20px;
      border: 1px solid rgba(193,58,255,0.3);
      transition: transform 0.3s;
    }
    .gallery-img:hover{
      transform: scale(1.01);
    }
    /* 标签云 */
    .tags-cloud{
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 16px;
    }
    .tag-item{
      background: rgba(193, 58, 255, 0.12);
      border: 1px solid rgba(193, 58, 255, 0.35);
      border-radius: 40px;
      padding: 8px 20px;
      font-size: 0.9rem;
      color: #d6b5ff;
      transition: background 0.2s;
    }
    .tag-item:hover{
      background: rgba(193, 58, 255, 0.25);
    }
    /* 服务网络 */
    .network-grid{
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 18px;
    }
    .network-item{
      background: rgba(22, 18, 36, 0.7);
      border-radius: 40px;
      padding: 12px 24px;
      text-align: center;
      color: #d1bfff;
      border: 1px solid rgba(193,58,255,0.2);
    }
    /* 价格参考 */
    .price-bar{
      display: flex;
      justify-content: space-between;
      padding: 12px 0;
      border-bottom: 1px solid rgba(193,58,255,0.15);
    }
    .price-bar:last-child{
      border-bottom: none;
    }