* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue",
               "Microsoft YaHei", "PingFang SC", sans-serif;
  background: #000;
  -webkit-touch-callout: none;
}

img {
  display: block;
  width: 100%;
}

a {
  text-decoration: none;
}

/* ── 主容器 ── */
.container {
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
  position: relative;
}

/* ── 主图区域 ── */
.main-images {
  padding-bottom: 19.07%;
}

.main-images img {
  width: 100%;
  display: block;
}

/* ── 底部悬浮下载栏 ── */
.float {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0 auto;
  width: 100%;
  max-width: 640px;
  z-index: 999;
  pointer-events: none;
}

.float a {
  pointer-events: auto;
}

.float img {
  width: 100%;
}

/* ── 右侧悬浮客服图标 ── */
.kf {
  position: fixed;
  top: 30%;
  right: 16px;
  z-index: 999;
  animation: kf-pulse 2s infinite;
}

.kf img {
  width: 72px;
  display: block;
}

@keyframes kf-pulse {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.12); }
  100% { transform: scale(1); }
}

/* ── PC 端二维码弹框 ── */
.qr-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.65);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

.qr-box {
  background: #fff;
  border-radius: 16px;
  padding: 36px 40px;
  text-align: center;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3);
}

.qr-title {
  font-size: 18px;
  font-weight: 700;
  color: #333;
  margin-bottom: 20px;
}

.qr-code {
  display: inline-block;
  padding: 10px;
  background: #fff;
  border: 1px solid #eee;
  border-radius: 8px;
}

.qr-tip {
  font-size: 13px;
  color: #999;
  margin-top: 16px;
}

.qr-close {
  margin-top: 20px;
  padding: 10px 48px;
  border: none;
  border-radius: 24px;
  background: linear-gradient(90deg, #ff6e88, #ff6189);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}