.container {
    display: flex;
    flex-direction: column;
}

/* 仅移动端 fixed */
@media screen and (max-width: 768px) {
    .content-png-box {
        padding: 10px 10px 120px 10px;
    }
    .footer-png-box {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 100;
    }
}

@media screen and (min-width: 768px) {
    .container {
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    }
    .content-png-box {
        padding: 10px 10px 150px 10px;
    }
    .footer-png-box {
        position: fixed;
        left: 50%;
        transform: translateX(-50%);
        bottom: 0;
        z-index: 100;
        width: 600px;
    }
}
/* ==================== 悬浮在线客服按钮（强制中部完全靠右） ==================== */
.floating-kf {
  position: fixed !important;
  top: 50% !important;
  right: 12px !important;
  left: auto !important;
  bottom: auto !important;
  transform: translateY(-50%) !important;
  z-index: 99999 !important;
  width: 68px;
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 16px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
  overflow: hidden;
  text-align: center;
  padding: 8px 6px 7px;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-decoration: none;
  color: #222;
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-sizing: border-box;
}

.floating-kf:hover {
  transform: translateY(-50%) scale(1.15) !important;
  background: rgba(255, 255, 255, 0.75);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}

.floating-kf img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  margin-bottom: 4px;
  transition: transform 0.3s ease;
}

.floating-kf:hover img {
  transform: scale(1.1);
}

.floating-kf span {
  display: block;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.1;
}