* { margin: 0; padding: 0; box-sizing: border-box; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
      background-color: #f9fafb;
      color: #333;
      line-height: 1.6;
    }
    header {
      width: 100%;
      padding: 32px 40px;
      background-color: #fff;
      border-bottom: 1px solid #eee;
    }
    .header-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      max-width: 1200px;
      margin: 0 auto;
    }
    .logo {
      display: flex;
      align-items: center;
      font-size: 1.8rem;
      font-weight: 700;
      color: #2563eb;
      text-decoration: none;
    }
    .logo svg {
      width: 32px;
      height: 32px;
      margin-right: 10px;
    }
    .header-right {
      font-size: 0.95rem;
      color: #4b5563;
      text-align: right;
    }

    /* 主内容 */
    main {
      padding: 40px 20px;
    }
    .container {
      max-width: 1200px;
      margin: 0 auto;
      text-align: center;
    }

    /* 节日促销横幅 */
    .promotion-banner {
  position: relative;
  height: 200px;
  border-radius: 16px;
  margin-bottom: 40px;

  display: flex;
  align-items: center;
  justify-content: center;

  color: #fff;
  font-size: 2.5rem;
  font-weight: 800;
  text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
  overflow: hidden; /* 关键：裁圆角 */
}

.promotion-banner .banner-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover; /* 等价 background-size: cover */
  z-index: 0;
}

.promotion-banner span {
  position: relative;
  z-index: 1;
}

    .promotion-banner span {
      background: rgba(0,0,0,0.4);
      padding: 10px 30px;
      border-radius: 12px;
    }

    h1 {
      font-size: 2.5rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: #111;
    }
    .subtitle {
      font-size: 1.25rem;
      color: #666;
      margin-bottom: 60px;
    }

    /* 定价卡片（不变） */
    .pricing-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 32px;
      max-width: 1000px;
      margin: 0 auto;
    }
    .card {
      background: #fff;
      border-radius: 16px;
      padding: 40px 32px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.08);
      position: relative;
      transition: transform 0.3s ease;
    }
    .card:hover { transform: translateY(-8px); }
    .card.popular { border: 4px solid #21C87A; box-shadow: 0 20px 40px rgba(147,51,234,0.15); }
    .popular-badge {
      position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
      background: #21C87A; color: #fff; font-size: 0.875rem; font-weight: 600;
      padding: 6px 20px; border-radius: 999px;
    }
    .card h3 { font-size: 1.75rem; font-weight: 600; margin-bottom: 8px; }
    .card .desc { color: #666; margin-bottom: 24px; }
    .price { font-size: 3.5rem; font-weight: 700; color: #111; margin-bottom: 8px; }
    .original-price { font-size: 1.5rem; color: #999; text-decoration: line-through; margin-left: 12px; }
    .btn { display: block; width: 100%; padding: 14px; margin: 12px 0; font-size: 1.1rem; font-weight: 600; border-radius: 8px; cursor: pointer; border: none; transition: background 0.3s; text-decoration: none; }
    .btn-primary { background: #2563eb; color: #fff; } .btn-primary:hover { background: #1d4ed8; }
	.btn-blue { background: #25B5EF; color: #fff; } .btn-blue:hover { background: #1C86EE; }
    .btn-blue-light { background: #DCF3FC; color: #25B5EF; } .btn-blue-light:hover { background: #ccedfa; }
	.btn-secondary { background: #e5e7eb; color: #374151; } .btn-secondary:hover { background: #d1d5db; }
    .btn-purple { background: #9333ea; color: #fff; } .btn-purple:hover { background: #7c2ad4; }
    .btn-purple-light { background: #f3e8ff; color: #9333ea; } .btn-purple-light:hover { background: #e9d5ff; }
	.btn-green { background: #21C87A; color: #fff; } .btn-green:hover { background: #30B34F; }
	.btn-green-light { background: #cbf8d6; color: #058545; } .btn-green-light:hover { background: #a3dfb1; }
    .note { font-size: 0.9rem; color: #666; margin: 16px 0 24px; }
    .features { list-style: none; text-align: left; margin-top: 32px; }
    .features li { display: flex; align-items: center; margin-bottom: 16px; font-size: 1.05rem; }
    .features svg { width: 20px; height: 20px; margin-right: 12px; flex-shrink: 0; color: #10b981; }

    /* 信任区 */
    .trust { margin-top: 80px; }
    .payment-icons { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; margin: 20px 0 40px; }
    .payment-icons img { height: 40px; opacity: 0.9; }
    .guarantee {
      background: linear-gradient(to right, #F6FDFA, #EDFBF4);
      border-radius: 12px;
      padding: 32px;
      max-width: 100%;
      margin: 0 auto;
      border: 1px solid #B0ECCF;
    }
    .guarantee h3 { font-size: 1.4rem; font-weight: 700; color: #111111; margin-bottom: 24px; }
    .guarantee-list {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 20px;
      text-align: center;
    }
    .guarantee-item {
      display: flex;
      flex-direction: column;
      align-items: center;
    }
    .guarantee-item img {
      width: 60px;
      height: 60px;
      margin-bottom: 12px;
      object-fit: contain;
    }
    .guarantee-item p {
      font-weight: 500;
      color: #333333;
    }

    /* FAQ - 加三角符号 */
    .faq {
      max-width: 100%;
      margin: 80px auto 0;
      text-align: left;
    }
    .faq h2 { text-align: center; font-size: 2rem; margin-bottom: 40px; }
    details {
      background: #fff;
      border-radius: 8px;
      padding: 16px;
      margin-bottom: 16px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    }
    summary {
      font-weight: 600;
      cursor: pointer;
      list-style: none;
      position: relative;
      padding-right: 24px;
    }
    summary::after {
      content: '▼';
      position: absolute;
      right: 0;
      top: 50%;
      transform: translateY(-50%);
      font-size: 1.2rem;
      color: #666;
    }
    details[open] summary::after {
      content: '▲';
    }
    details[open] summary { margin-bottom: 12px; }

    /* Footer */
    footer {
      width: 100%;
      background-color: #fff;
      border-top: 1px solid #eee;
      padding: 32px 20px;
      text-align: center;
      font-size: 0.9rem;
      color: #666;
    }

    /* 响应式 */
    @media (max-width: 768px) {
      header { padding: 24px 20px; }
      .header-container { flex-direction: column; text-align: center; }
      .header-right { margin-top: 12px; }
      .promotion-banner { height: 150px; font-size: 1.8rem; }
      h1 { font-size: 2.2rem; }
      .price { font-size: 3rem; }
      .guarantee-list { grid-template-columns: 1fr; }
    }


/*2026.1.7*/
  .custom-tag{
	 position: absolute;
	 top: -36px;
    right: 10px;
	width: 90px;
    height: 48px;
	font-size: 14px;
    line-height: 40px;
    text-align: center;
    color: #fff;
}

.custom-tag img {
  width: 100%; /* 让图片自适应填充父容器 */
  height: auto;
}
.custom-tag span {
  position: absolute;
  top: 95%; /* 使 span 垂直居中于图片 */
  left: 55%; /* 使 span 水平居中于图片 */
  transform: translate(-50%, -50%); /* 确保精确居中 */
  color: #fff; /* 白色字体 */
  font-weight: bold;
  font-size: 1.5rem; /* 设置适合的字体大小 */
  white-space: nowrap; /* 防止换行 */
}

/* 手机端自适应样式 */
@media (max-width: 768px) {
    .custom-tag {
        top: -30px; /* 调整在小屏幕上的位置 */
        right: 7px;
        width: 75px; /* 在手机上缩小宽度 */
        height: 40px; /* 在手机上缩小高度 */
        font-size: 12px; /* 减小字体 */
    }
.custom-tag img {
  width: 100%; /* 让图片自适应填充父容器 */
  height: auto;
}
    .custom-tag span {
        font-size: 1.4rem; /* 在手机上适当减小字体 */
        top: 82%; /* 使 span 垂直居中于图片 */
  left: 56%; /* 使 span 水平居中于图片 */
    }
}

/* 更小设备（如手机竖屏） */
@media (max-width: 480px) {
    .custom-tag {
        top: -22px; 
        right: 3px;
        width: 75px; 
        height: 36px;
        font-size: 10px; 
    }
.custom-tag img {
  width: 100%; /* 让图片自适应填充父容器 */
  height: auto;
}
    .custom-tag span {
        font-size: 1.3rem; /* 更小字体 */
        top: 110%; /* 使 span 垂直居中于图片 */
  left: 56%; /* 使 span 水平居中于图片 */
    }
}