如何防止在显示子类别时将类别推高？

问：

我有 4 个列表形式的类别;所有，城市化，建筑和室内设计。城市规划、建筑和室内设计都以列表的形式具有子类别。该代码既可以过滤图像，也可以显示子图像。我遇到的问题是，每当我单击“城市规划”、“建筑”或“室内设计”以显示子类别时;整个街区被推高。

我希望所有城市化、所有、建筑和室内设计都保持在同一条水平线上，即使我单击任何类别以显示子类别。我希望子类别在单击时低于其父类别。您的帮助将不胜感激。以下是我的代码：

    <div class="about_section">
      <br />
      <h1>projects</h1>
      <ul class="switcher">
        <li data-cat=".all" class="active">All</li>
        <li data-cat=".urb" id="show">
          Urbanism

          <ul class="switcher" id="content" style="display: none">
            <li data-cat=".cityscale">City Scale</li>

            <li data-cat=".residential">Residential</li>
            <li data-cat=".entertainment">Entertainment</li>
          </ul>
        </li>
        <li data-cat=".arch" id="showarch">
          Architecture
          <ul class="switcher" id="contentarch" style="display: none">
            <li data-cat=".adminstrative">Adminstrative</li>
            <li data-cat=".commercial">Commercial</li>
            <li data-cat=".hospitality">Hospitality</li>
            <li data-cat=".residential">Residential</li>
            <li data-cat=".educational">Educational</li>
            <li data-cat=".cultural">Cultural</li>
            <li data-cat=".entertainment">Entertainment</li>
            <li data-cat=".medical">Medical</li>
            <li data-cat=".religious">Religious</li>
            <li data-cat=".restoration">Restoration</li>
            <li data-cat=".infrastructure">Infrastructure</li>
          </ul>
        </li>
        <li data-cat=".int" id="showint">
          Interior Design
          <ul class="switcher" id="contentint" style="display: none">
            <li data-cat=".residential">Residential</li>
            <li data-cat=".commercial">Commercial</li>
            <li data-cat=".cultural">Cultural</li>
          </ul>
        </li>
      </ul>
    </div>
let switcherLi = document.querySelectorAll(".switcher li");
let imgs = Array.from(document.images);

switcherLi.forEach((li) => {
  li.addEventListener("click", removeActive);
  li.addEventListener("click", filter);
});

function removeActive() {
  switcherLi.forEach((li) => {
    li.classList.remove("active");
    this.classList.add("active");
  });
}

function filter() {
  imgs.forEach((img) => {
    if (!img.classList.contains("logo")) {
      img.style.display = "none";
    }
  });
  document.querySelectorAll(this.dataset.cat).forEach((el) => {
    el.style.display = "block";
  });
}

var urbanismElement = document.getElementById("show");
var contentElement = document.getElementById("content");

urbanismElement.onclick = function (event) {
  if (event.target === urbanismElement) {
    if (contentElement.style.display === "none") {
      contentElement.style.display = "block";
      archcontent.style.display = "none"; // Hide architecture subcategories
      intcontent.style.display = "none"; // Hide interior design subcategories
    } else {
      contentElement.style.display = "none";
    }
  }
};

var archelement = document.getElementById("showarch");
var archcontent = document.getElementById("contentarch");

archelement.onclick = function (event) {
  if (event.target === archelement) {
    if (archcontent.style.display === "none") {
      archcontent.style.display = "block";
      contentElement.style.display = "none"; // Hide urbanism subcategories
      intcontent.style.display = "none"; // Hide interior design subcategories
    } else {
      archcontent.style.display = "none";
    }
  }
};

var intelement = document.getElementById("showint");
var intcontent = document.getElementById("contentint");

intelement.onclick = function (event) {
  if (event.target === intelement) {
    if (intcontent.style.display === "none") {
      intcontent.style.display = "block";
      contentElement.style.display = "none"; // Hide urbanism subcategories
      archcontent.style.display = "none"; // Hide architecture subcategories
    } else {
      intcontent.style.display = "none";
    }
  }
};

var allElement = document.querySelector('.switcher li[data-cat=".all"]');
var categoryElements = document.querySelectorAll(".switcher li[data-cat]");

allElement.onclick = function (event) {
  if (event.target === allElement) {
    for (var i = 0; i < categoryElements.length; i++) {
      categoryElements[i].classList.remove("active");
    }
    allElement.classList.add("active");
    contentElement.style.display = "none";
    archcontent.style.display = "none";
    intcontent.style.display = "none";
  }
};
@import url("https://fonts.googleapis.com/css2?family=Advent+Pro&family=Amatic+SC&family=Bricolage+Grotesque:[email protected]&family=Cardo&family=Comfortaa:wght@300&family=Domine&family=Gruppo&family=Indie+Flower&family=Kodchasan:wght@300;500&family=Lato&family=Oswald&family=Playfair+Display+SC&family=Playfair+Display:wght@500&family=Roboto:wght@100&family=Rubik:ital,wght@1,300&family=Syncopate:wght@400;700&family=Urbanist&display=swap");

* {
  font-family: "laluxesserifw05-regularRg";
  font-weight: normal;
  font-style: normal;
}
@font-face {
  font-family: "MADEMirage-Thin";
  src: url("MADEMirage-Thin.ttf.woff") format("woff"),
    url("MADEMirage-Thin.ttf.svg#MADEMirage-Thin") format("svg"),
    url("MADEMirage-Thin.ttf.eot"),
    url("MADEMirage-Thin.ttf.eot?#iefix") format("embedded-opentype");
  font-weight: normal;
  font-style: normal;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
p {
  font-family: "made_miragethin";
}
section {
  padding-top: 30px;
  height: 100vh;
  display: flex;
  justify-content: center;
  scroll-snap-align: start;
}
.container {
  scroll-snap-type: y mandatory;
  overflow-y: scroll;
  height: 100vh;
}
.navbar-brand {
  margin-right: 0;
}
.navbar-nav {
  align-items: center;
}
.navbar .navbar-nav .nav-link {
  color: black;
  font-size: 1.1em;
  padding: 0.5 1em;
}

.nav-item {
  font-size: 14px;
  font-weight: Regular;
}
.about_section {
  padding-top: 80px;
  padding-left: 30px;
  padding-right: 30px;
  text-align: center;
  justify-content: center;
}
.about_section h1 {
  text-align: center;
}
.footer {
  text-align: center;
}

.gallery {
  --s: 150px; /* control the size */
  --g: 10px; /* control the gap */
  --f: 1.5; /* control the scale factor */
  width: 100vw;
  height: 100vh;
  display: grid;
  gap: var(--g);
  width: calc(7 * var(--s) + 6 * var(--g));
  aspect-ratio: 1;
  grid-template-columns: repeat(3, auto);
}
.gallery > a {
  display: contents;
}
.gallery img {
  width: 0;
  height: 0;
  min-height: 100%;
  min-width: 100%;
  object-fit: cover;
  cursor: pointer;
  filter: grayscale(80%);
  transition: 0.35s linear;
}

.gallery img:hover {
  filter: grayscale(0);
  width: calc(var(--s) * var(--f));
  height: calc(var(--s) * var(--f));
}

body {
  margin: 0;
  display: grid;
  place-content: center;
}

.container {
  display: flex;
  align-items: center;
  justify-content: center;
}
@media screen and (max-width: 700px) {
  div.large {
    display: none;
  }
}

/***** for mobiles *****/

@media (min-width: 699px) {
  .cont {
    display: none;
  }
}

@media (min-width: 699px) {
  div.small {
    display: none;
  }
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  grid-gap: 20px;
  align-items: stretch;
}
.grid img {
  border: 1px solid #ccc;
  box-shadow: 2px 2px 6px 0px rgba(0, 0, 0, 0.3);
  max-width: 100%;
  margin-left: 5px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  justify-content: center;
  gap: 10px;
}
.grid div {
  max-height: 300px;
}

.switcher {
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  list-style: none;
  width: fit-content;
  padding: 10px 10px;
  
  }
  
  .switcher li {
  border-radius: 4px;
  padding: 10px 10px;
  background-color: white;
  cursor: pointer;
  transition: 0.2s linear;
  font-size: 12px;
  user-select: none;
  margin: 5px;
  justify-content: center;
  align-items: center;
  display: flex;
  display: inline-block;
  
  cursor: pointer;
  }

  
  .content div {
  display: none;
  margin-top: 10px;
  }