genealogy-min-program/custom-tab-bar/index.wxss

/* 整体容器 */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: transparent;
  /* 为安全区留空 */
  padding-bottom: env(safe-area-inset-bottom);
}

.tab-bar-inner {
  display: flex;
  align-items: stretch;
  background: #fff;
  border-radius: 32rpx 32rpx 0 0;
  box-shadow: 0 -4rpx 24rpx rgba(100, 60, 20, 0.12);
  border-top: 1rpx solid rgba(200, 168, 130, 0.25);
  overflow: hidden;
}

/* 每个 Tab 项 */
.tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12rpx 0 18rpx;
  position: relative;
  transition: all 0.2s ease;
}

.tab-item:active {
  opacity: 0.75;
}

/* 顶部激活条 */
.tab-indicator {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 48rpx;
  height: 6rpx;
  border-radius: 0 0 6rpx 6rpx;
  background: linear-gradient(90deg, #8B4513, #D2691E);
  transition: transform 0.25s ease;
}

.indicator-show {
  transform: translateX(-50%) scaleX(1);
}

/* 图标区域 */
.tab-icon-wrap {
  width: 80rpx;
  height: 56rpx;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 6rpx;
  position: relative;
}

.tab-svg-box {
  position: relative;
  width: 52rpx;
  height: 52rpx;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 激活时的圆形背景 */
.tab-icon-bg {
  position: absolute;
  inset: -8rpx;
  border-radius: 20rpx;
  background: transparent;
  transition: background 0.2s ease;
}

.icon-bg-active {
  background: rgba(139, 69, 19, 0.1);
}

/* 图标本体 — 用 mask + background 实现着色 SVG */
.tab-icon-img {
  width: 44rpx;
  height: 44rpx;
  background-color: #b0a090;
  transition: background-color 0.2s ease;
  -webkit-mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
}

.icon-img-active {
  background-color: #8B4513;
}

/* 首页 - 房子图标 */
.icon-0 {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M10 20v-6h4v6h5v-8h3L12 3 2 12h3v8z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M10 20v-6h4v6h5v-8h3L12 3 2 12h3v8z'/%3E%3C/svg%3E");
}

/* 世系查询 - 树形/关系图标 */
.icon-1 {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M22 11V3h-7v3H9V3H2v8h7V8h2v10h4v3h7v-8h-7v3h-2V8h2v3z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M22 11V3h-7v3H9V3H2v8h7V8h2v10h4v3h7v-8h-7v3h-2V8h2v3z'/%3E%3C/svg%3E");
}

/* 我的录入 - 编辑图标 */
.icon-2 {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 17.25V21h3.75L17.81 9.94l-3.75-3.75L3 17.25zM20.71 7.04c.39-.39.39-1.02 0-1.41l-2.34-2.34c-.39-.39-1.02-.39-1.41 0l-1.83 1.83 3.75 3.75 1.83-1.83z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M3 17.25V21h3.75L17.81 9.94l-3.75-3.75L3 17.25zM20.71 7.04c.39-.39.39-1.02 0-1.41l-2.34-2.34c-.39-.39-1.02-.39-1.41 0l-1.83 1.83 3.75 3.75 1.83-1.83z'/%3E%3C/svg%3E");
}

/* 家族圈 - 人群图标 */
.icon-3 {
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M16 11c1.66 0 2.99-1.34 2.99-3S17.66 5 16 5c-1.66 0-3 1.34-3 3s1.34 3 3 3zm-8 0c1.66 0 2.99-1.34 2.99-3S9.66 5 8 5C6.34 5 5 6.34 5 8s1.34 3 3 3zm0 2c-2.33 0-7 1.17-7 3.5V19h14v-2.5c0-2.33-4.67-3.5-7-3.5zm8 0c-.29 0-.62.02-.97.05 1.16.84 1.97 1.97 1.97 3.45V19h6v-2.5c0-2.33-4.67-3.5-7-3.5z'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M16 11c1.66 0 2.99-1.34 2.99-3S17.66 5 16 5c-1.66 0-3 1.34-3 3s1.34 3 3 3zm-8 0c1.66 0 2.99-1.34 2.99-3S9.66 5 8 5C6.34 5 5 6.34 5 8s1.34 3 3 3zm0 2c-2.33 0-7 1.17-7 3.5V19h14v-2.5c0-2.33-4.67-3.5-7-3.5zm8 0c-.29 0-.62.02-.97.05 1.16.84 1.97 1.97 1.97 3.45V19h6v-2.5c0-2.33-4.67-3.5-7-3.5z'/%3E%3C/svg%3E");
}

/* 文字标签 */
.tab-label {
  font-size: 20rpx;
  color: #b0a090;
  transition: color 0.2s ease, font-weight 0.2s ease;
  letter-spacing: 1rpx;
}

.tab-label-active {
  color: #8B4513;
  font-weight: 700;
}