/* ============================================================
   WhatsApp 在线聊天悬浮组件（屏幕右侧垂直居中）
   色系匹配站点主题：--servixa-base (#0089A6) / --servixa-black (#111)
   ============================================================ */

.nk-wa {
  --nkwa-base: var(--servixa-base, #0089A6);
  --nkwa-base-dark: #006d85;
  --nkwa-black: var(--servixa-black, #111111);
  --nkwa-wa-green: #25d366;
  font-family: var(--servixa-font, "Inter", sans-serif);
}

/* ---------- 启动器（标签 + 圆形按钮，屏幕右侧垂直居中） ---------- */
.nk-wa__launcher {
  position: fixed;
  top: 50%;
  right: 20px;
  bottom: auto;
  left: auto;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 999;
  cursor: pointer;
}
.nk-wa__label {
  background: #fff;
  border-radius: 30px;
  padding: 13px 24px;
  font-size: 15px;
  line-height: 1.4;
  color: var(--nkwa-black);
  box-shadow: 0 5px 20px rgba(17, 17, 17, 0.12);
  white-space: nowrap;
  user-select: none;
  /* 全端通用：文字标签显示 4 秒后自动收起（保留圆形 WhatsApp 按钮） */
  --nkwa-lbl-pad: 24px;
  --nkwa-lbl-maxw: 320px;
  overflow: hidden;
  animation: nkwaLabelAutoHide 4s ease forwards;
}
@keyframes nkwaLabelAutoHide {
  0%,
  75% {
    opacity: 1;
    visibility: visible;
    max-width: var(--nkwa-lbl-maxw);
    padding-left: var(--nkwa-lbl-pad);
    padding-right: var(--nkwa-lbl-pad);
    margin-right: 0;
  }
  100% {
    opacity: 0;
    visibility: hidden;
    max-width: 0;
    padding-left: 0;
    padding-right: 0;
    margin-right: -12px;
  }
}
.nk-wa__label b {
  font-weight: 700;
  color: var(--nkwa-black);
}
.nk-wa__fab {
  width: 62px;
  height: 62px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--nkwa-base) 0%, var(--nkwa-base-dark) 100%);
  color: #fff;
  font-size: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0, 137, 166, 0.45);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.nk-wa__fab:hover {
  transform: scale(1.06);
  box-shadow: 0 10px 28px rgba(0, 137, 166, 0.55);
}
.nk-wa__fab .fab-whatsapp,
.nk-wa__fab i {
  line-height: 1;
}

/* ---------- 聊天面板（垂直居中，位于启动器左侧，弹出时从右滑入） ---------- */
.nk-wa__panel {
  position: fixed;
  top: 50%;
  right: 96px;
  bottom: auto;
  left: auto;
  transform: translate(24px, -50%);
  width: 350px;
  max-width: calc(100vw - 120px);
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 15px 50px rgba(17, 17, 17, 0.25);
  overflow: hidden;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.35s ease;
}
.nk-wa.is-open .nk-wa__panel {
  opacity: 1;
  visibility: visible;
  transform: translate(0, -50%);
}

.nk-wa__header {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 20px 22px;
  background: linear-gradient(135deg, var(--nkwa-base) 0%, var(--nkwa-base-dark) 100%);
  color: #fff;
}
.nk-wa__header-icon {
  flex: none;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}
.nk-wa__header-text h4 {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}
.nk-wa__header-text p {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.92);
}

.nk-wa__body {
  padding: 18px 20px 22px;
}
.nk-wa__tip {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--servixa-gray, #585b6b);
}

/* 成员卡片 */
.nk-wa__member {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--servixa-bdr-color, #e6e6e6);
  border-left: 3px solid var(--nkwa-base);
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.3s ease;
}
.nk-wa__member + .nk-wa__member {
  margin-top: 10px;
}
.nk-wa__member:hover {
  box-shadow: 0 8px 20px rgba(17, 17, 17, 0.1);
  transform: translateY(-1px);
  text-decoration: none;
}
.nk-wa__member-icon {
  flex: none;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--nkwa-wa-green);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}
.nk-wa__member-name {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  color: var(--nkwa-black);
}
.nk-wa__member-go {
  flex: none;
  color: var(--nkwa-wa-green);
  font-size: 22px;
}

/* ---------- 关闭按钮（面板打开时出现在启动器位置，右侧垂直居中） ---------- */
.nk-wa__close {
  position: fixed;
  top: 50%;
  right: 20px;
  bottom: auto;
  left: auto;
  transform: translateY(-50%) scale(0.6);
  width: 56px;
  height: 56px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--nkwa-base) 0%, var(--nkwa-base-dark) 100%);
  color: #fff;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 999;
  box-shadow: 0 8px 24px rgba(0, 137, 166, 0.45);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}
.nk-wa.is-open .nk-wa__close {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) scale(1);
}
.nk-wa.is-open .nk-wa__launcher {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.2s ease;
}

/* ---------- 移动端适配 ---------- */
@media (max-width: 575px) {
  .nk-wa__launcher {
    right: 12px;
  }
  /* 移动端：仅覆盖标签内边距（4 秒自动收起动画由全局规则提供） */
  .nk-wa__label {
    padding: 10px 18px;
    font-size: 14px;
    --nkwa-lbl-pad: 18px;
    --nkwa-lbl-maxw: 300px;
  }
  .nk-wa__fab {
    width: 56px;
    height: 56px;
    font-size: 27px;
  }
  .nk-wa__close {
    right: 12px;
  }
  .nk-wa__panel {
    right: 80px;
    max-width: calc(100vw - 92px);
  }
}