feat: 表单、表格、选项卡、分割线移动端1像素边框优化

packages/amis-ui/scss/_mixins.scss

@@ -615,3 +615,28 @@
   text-overflow: ellipsis;
   white-space: nowrap;
 }
+
+@mixin hairline-common() {
+  position: absolute;
+  box-sizing: border-box;
+  content: ' ';
+  pointer-events: none;
+}
+
+@mixin hairline-top($color: var(--van-border-color), $left: 0, $right: 0) {
+  @include hairline-common();
+  top: 0;
+  right: $right;
+  left: $left;
+  border-top: 1px solid $color;
+  transform: scaleY(0.5);
+}
+
+@mixin hairline-bottom($color: var(--van-border-color), $left: 0, $right: 0) {
+  @include hairline-common();
+  right: $right;
+  bottom: 0;
+  left: $left;
+  border-bottom: 1px solid $color;
+  transform: scaleY(0.5);
+}

packages/amis-ui/scss/components/_collapse.scss

@@ -184,3 +184,15 @@
     }
   }
 }
+
+/* 移动端样式调整 */
+@include media-breakpoint-down(sm) {
+  .#{$ns}Collapse {
+    border: none;
+    position: relative;
+
+    &::before {
+      @include hairline-bottom(var(--collapse-default-bottom-border-color));
+    }
+  }
+}

packages/amis-ui/scss/components/_divider.scss

@@ -8,4 +8,15 @@
   &--solid {
     border-bottom-style: solid;
   }
+
+  &--dashed {
+    border-bottom-style: dashed;
+  }
+}
+
+/* 移动端样式调整 */
+@include media-breakpoint-down(sm) {
+  .#{$ns}Divider {
+    transform: scaleY(0.5);
+  }
 }

packages/amis-ui/scss/components/_input-box.scss

@@ -77,8 +77,11 @@
   &.is-mobile {
     border: none;
     border-radius: 0;
-    border-bottom: var(--Form-input-borderWidth) solid
-      var(--Form-input-borderColor);
+    position: relative;
+
+    &::before {
+      @include hairline-bottom(var(--Form-input-borderColor));
+    }
 
     &.is-error,
     .is-error > & {

packages/amis-ui/scss/components/_json-schema.scss

@@ -145,8 +145,11 @@
   &.is-mobile {
     .#{$ns}Number {
       border-radius: 0;
-      border-bottom: var(--Number-borderWidth) solid
-        var(--Form-input-borderColor);
+      position: relative;
+
+      &::before {
+        @include hairline-bottom(var(--Form-input-borderColor));
+      }
     }
   }
 }

packages/amis-ui/scss/components/_table.scss

@@ -1073,3 +1073,23 @@
     margin-right: px2rem(10px);
   }
 }
+
+/* 移动端样式调整 */
+@include media-breakpoint-down(sm) {
+  .#{$ns}Table-table > thead > tr > th {
+    border-bottom: none;
+
+    &::before {
+      @include hairline-bottom(var(--Table-thead-borderColor));
+    }
+  }
+  .#{$ns}Table-table th,
+  .#{$ns}Table-table td {
+    position: relative;
+    border-bottom: none;
+
+    &::before {
+      @include hairline-bottom(var(--Table-borderColor));
+    }
+  }
+}

packages/amis-ui/scss/components/_tabs.scss

@@ -1389,3 +1389,15 @@
     justify-content: flex-end; // 默认居右展示
   }
 }
+
+/* 移动端样式调整 */
+@include media-breakpoint-down(sm) {
+  .#{$ns}Tabs--line {
+    .#{$ns}Tabs-linksContainer-wrapper {
+      &::before {
+        border-bottom-width: 1px;
+        transform: scaleY(0.5);
+      }
+    }
+  }
+}

packages/amis-ui/scss/components/form/_combo.scss

@@ -336,7 +336,11 @@
 
     .#{$ns}Combo-item {
       align-items: center;
-      border-bottom: var(--Form-input-borderWidth) solid var(--borderColor);
+      position: relative;
+
+      &::before {
+        @include hairline-bottom(var(--borderColor));
+      }
     }
   }
 

packages/amis-ui/scss/components/form/_form.scss

@@ -524,7 +524,8 @@
       right: 0;
       bottom: 0;
       left: 0;
-      border-bottom: var(--Form-input-borderWidth) solid var(--borderColor);
+      border-bottom: 1px solid var(--borderColor);
+      transform: scaleY(0.5);
     }
 
     .#{$ns}InputGroup-addOn,