/* =========================================================
   侧边悬挂组件样式（sw- = side widget）
   所有可调参数集中在 :root
   ✅ 整体缩小15%，清理冗余代码，修复弹窗箭头底色断层
   ========================================================= */
:root {
  /* 主体胶囊 */
  --sw-body-width: 66px;
  --sw-body-height: 191px;
  --sw-pill-bg: #FDFDFD;
  --sw-pill-radius: 38px;
  --sw-pill-shadow: 0 1px 4px rgba(13, 13, 14, 0.08), 0 1px 4px rgba(13, 13, 14, 0.12);
  --sw-text-color: #111111;
  --sw-divider-color: rgba(218, 218, 218, 0.5);

  /* 弹窗 */
  --sw-popup-width: 201px;
  --sw-popup-radius: 15px;
  --sw-popup-gap: 13px;
  --sw-popup-bg-top: #EAF4FF;
  --sw-popup-bg: linear-gradient(180deg, var(--sw-popup-bg-top) 0%, #FFFFFF 55%);
  --sw-popup-shadow: 0 4px 16px rgba(13, 13, 14, 0.10);
  --sw-label-color: #4F4F4F;
  --sw-num-color: #111111;
  --sw-num-hover: #2F6FED;

  /* 返回顶部按钮 */
  --sw-backtop-size: 56px;
  --sw-backtop-bg: #F5F6F7;
  --sw-backtop-bg-hover: #E9EBEE;
  --sw-backtop-color: #333333;
  --sw-backtop-shadow: 0 1px 4px rgba(13, 13, 14, 0.10);

  /* 图标文字 */
  --sw-icon-w: 31px;
  --sw-icon-h: 28px;
  --sw-popup-icon-w: 28px;
  --sw-popup-icon-h: 23px;
  --sw-qr-size: 82px;
  --sw-font-sm: 15px;
  --sw-font-base: 16px;
  --sw-space-12: 10px;
  --sw-space-8: 7px;
  --sw-space-6: 5px;
  --sw-space-4: 3px;
  --sw-space-3: 4px;

  --sw-zindex: 9999;
}

.sw-widget {
  position: fixed;
  right: 20px;
  bottom: 153px;
  z-index: var(--sw-zindex);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sw-body {
  position: relative;
  width: var(--sw-body-width);
  height: var(--sw-body-height);
  background: var(--sw-pill-bg);
  border-radius: var(--sw-pill-radius);
  box-shadow: var(--sw-pill-shadow);
  display: flex;
  flex-direction: column;
  padding: 0;
  box-sizing: border-box;
}

.sw-item {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sw-item__btn {
  width: 100%;
  height: 100%;
  border: none;
  background: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sw-space-3);
  color: var(--sw-text-color);
  font-family: inherit;
}

.sw-item__icon {
  width: var(--sw-icon-w);
  height: var(--sw-icon-h);
  object-fit: contain;
  pointer-events: none;
}

.sw-item__text {
  font-size: var(--sw-font-sm);
  line-height: 1;
  pointer-events: none;
}

.sw-divider {
  width: 32px;
  height: 1px;
  margin: 0 auto;
  background: var(--sw-divider-color);
}

.sw-popup {
  position: absolute;
  right: calc(100% + var(--sw-popup-gap));
  width: var(--sw-popup-width);
  background: var(--sw-popup-bg);
  border-radius: var(--sw-popup-radius);
  box-shadow: var(--sw-popup-shadow);
  padding: 23px 20px 18px;
  box-sizing: border-box;
  opacity: 0;
  visibility: hidden;
  transform: translateX(13px);
  pointer-events: none;
  transition:
    opacity 0.25s ease,
    transform 0.25s ease,
    visibility 0s linear 0.25s;
}

.sw-popup::after {
  content: "";
  position: absolute;
  right: calc(-1 * var(--sw-popup-gap));
  top: 38px;
  border-left: calc(var(--sw-popup-gap) + 1px) solid #ffffff;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
}

.sw-item:hover .sw-popup,
.sw-item:focus-within .sw-popup,
.sw-item.is-open .sw-popup {
  opacity: 1;
  visibility: visible;
  transform: none;
  pointer-events: auto;
  transition:
    opacity 0.25s ease 0.12s,
    transform 0.25s ease 0.12s,
    visibility 0s;
}

.sw-item--wechat .sw-popup { top: -3px; }
.sw-item--phone .sw-popup { top: 0; }

.sw-popup__qr {
  display: block;
  width: var(--sw-qr-size);
  height: var(--sw-qr-size);
  margin: 0 auto;
  object-fit: contain;
}

.sw-popup__label {
  margin: var(--sw-space-8) 0 18px;
  text-align: center;
  font-size: var(--sw-font-sm);
  line-height: 1;
  color: var(--sw-label-color);
}

.sw-popup__title {
  display: flex;
  align-items: center;
  gap: var(--sw-space-6);
  margin: 0 0 var(--sw-space-12);
  font-size: var(--sw-font-base);
  font-weight: 600;
  line-height: 1;
  color: var(--sw-text-color);
}

.sw-popup__title-icon {
  width: var(--sw-popup-icon-w);
  height: var(--sw-popup-icon-h);
  object-fit: contain;
}

.sw-popup__row-label {
  margin: var(--sw-space-4) 0 var(--sw-space-4);
  font-size: var(--sw-font-sm);
  line-height: 1.4;
  color: var(--sw-label-color);
}

.sw-popup__row-num {
  display: block;
  font-size: var(--sw-font-sm);
  line-height: 1.6;
  color: var(--sw-num-color);
  text-decoration: none;
  font-family: inherit;
}

.sw-popup__row-num:hover {
  color: var(--sw-num-hover);
}

.sw-backtop {
  width: var(--sw-backtop-size);
  height: var(--sw-backtop-size);
  margin-top: 10px;
  border: none;
  border-radius: 50%;
  background: var(--sw-backtop-bg);
  box-shadow: var(--sw-backtop-shadow);
  color: var(--sw-backtop-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: background-color 0.2s ease;
}

.sw-backtop:hover {
  background: var(--sw-backtop-bg-hover);
}

@media (max-width: 480px) {
  .sw-popup {
    width: 188px;
    padding: 18px 15px 13px;
  }
  .sw-popup__qr {
    width: 71px;
    height: 71px;
  }
}