/* 产品页公共基础：按钮、排版、图片清晰展示 */
:root {
  --primary: #0e7aff;
  --primary-dark: #0753c7;
  --accent: #15c4ff;
  --ink: #071932;
  --muted: #617089;
  --line: #dfe8f4;
  --soft: #f4f8ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}

a {
  text-decoration: none;
}

/* 横图统一按原始比例展示，避免裁切和模糊 */
.product-img,
.product-page img.product-img,
.product-page .img-fluid {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.product-page .banner-img-fluid {
  display: block;
  width: 100%;
  height: auto;
}

.btn-primary-gradient,
.btn-ghost-light,
.btn-ghost-blue {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border-radius: 999px;
  padding: 0 24px;
  font-weight: 800;
}

.btn-primary-gradient {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 16px 32px rgba(14, 122, 255, 0.28);
}

.btn-ghost-light {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.08);
}

.btn-ghost-blue {
  color: var(--primary);
  border: 1px solid rgba(14, 122, 255, 0.26);
  background: rgba(255, 255, 255, 0.88);
}

@media (max-width: 767px) {
  .btn-primary-gradient,
  .btn-ghost-light,
  .btn-ghost-blue {
    width: 100%;
  }
}