diff --git a/index.html b/index.html
index 396f3c2..25fd258 100644
--- a/index.html
+++ b/index.html
@@ -48,6 +48,13 @@
           <nav class="nav-tree" aria-label="Дерево навигации" data-nav-tree></nav>
           </div>
         </aside>
+        <div
+          class="sidebar-resizer"
+          role="separator"
+          aria-orientation="vertical"
+          aria-label="Изменить ширину бокового меню"
+          data-sidebar-resizer
+        ></div>
 
       <div class="settings-overlay" data-settings-overlay></div>
       <div class="control-panel" aria-label="Настройки панели" data-settings-panel>
@@ -95,6 +102,14 @@
           <input type="checkbox" data-show-numbers />
         </label>
 
+        <label class="toggle-row">
+          <span>
+            <strong>Показывать теги дерева</strong>
+            <small>Тип сервиса рядом с элементом</small>
+          </span>
+          <input type="checkbox" data-show-tree-tags />
+        </label>
+
         <div class="control-group accent-group">
           <span>Акцент</span>
           <button
diff --git a/script.js b/script.js
index 4efa218..2df7c57 100644
--- a/script.js
+++ b/script.js
@@ -138,6 +138,8 @@ const defaultPreferences = {
   view: "cards",
   accent: "violet",
   showNumbers: false,
+  showTreeTags: true,
+  sidebarWidth: 390,
 };
 const availableViews = ["cards", "list", "compact-cards", "compact-list"];
 
@@ -145,6 +147,7 @@ const preferences = { ...defaultPreferences, ...readPreferences() };
 const collapseState = readCollapseState();
 const catalog = document.querySelector("[data-catalog-root]");
 const navTree = document.querySelector("[data-nav-tree]");
+const sidebarResizer = document.querySelector("[data-sidebar-resizer]");
 const searchInput = document.querySelector("[data-search-input]");
 const settingsToggle = document.querySelector("[data-settings-toggle]");
 const settingsPanel = document.querySelector("[data-settings-panel]");
@@ -154,13 +157,17 @@ const themeButtons = document.querySelectorAll("[data-theme]");
 const viewButtons = document.querySelectorAll("[data-view]");
 const accentButtons = document.querySelectorAll("[data-accent]");
 const showNumbersInput = document.querySelector("[data-show-numbers]");
+const showTreeTagsInput = document.querySelector("[data-show-tree-tags]");
 const emptyTemplate = document.querySelector("#empty-template");
 
 renderNavigationTree();
 applyPreferences(preferences);
 renderCatalog();
 
-searchInput.addEventListener("input", renderCatalog);
+searchInput.addEventListener("input", () => {
+  renderNavigationTree();
+  renderCatalog();
+});
 
 navTree.addEventListener("click", (event) => {
   const button = event.target.closest("[data-focus-target]");
@@ -234,6 +241,36 @@ showNumbersInput.addEventListener("change", () => {
   savePreferences(preferences);
 });
 
+showTreeTagsInput.addEventListener("change", () => {
+  preferences.showTreeTags = showTreeTagsInput.checked;
+  applyPreferences(preferences);
+  savePreferences(preferences);
+});
+
+sidebarResizer.addEventListener("pointerdown", (event) => {
+  event.preventDefault();
+  document.body.classList.add("is-resizing-sidebar");
+  sidebarResizer.setPointerCapture(event.pointerId);
+
+  const handlePointerMove = (moveEvent) => {
+    const layoutLeft = document.querySelector(".app-layout").getBoundingClientRect().left;
+    preferences.sidebarWidth = Math.round(clamp(moveEvent.clientX - layoutLeft, 260, 560));
+    applyPreferences(preferences);
+  };
+
+  const handlePointerUp = () => {
+    document.body.classList.remove("is-resizing-sidebar");
+    savePreferences(preferences);
+    sidebarResizer.removeEventListener("pointermove", handlePointerMove);
+    sidebarResizer.removeEventListener("pointerup", handlePointerUp);
+    sidebarResizer.removeEventListener("pointercancel", handlePointerUp);
+  };
+
+  sidebarResizer.addEventListener("pointermove", handlePointerMove);
+  sidebarResizer.addEventListener("pointerup", handlePointerUp);
+  sidebarResizer.addEventListener("pointercancel", handlePointerUp);
+});
+
 function createItem(number, title, type, tags = [], url = "#") {
   return { number, title, type, tags, url };
 }
@@ -245,7 +282,7 @@ function renderCatalog() {
   let visibleItems = 0;
 
   ecosystemSections.forEach((section) => {
-    const sectionElement = createSectionElement(section, forceOpen);
+    const sectionElement = createSectionElement(section, forceOpen, query);
     let visibleGroups = 0;
     let sectionVisibleItems = 0;
 
@@ -258,7 +295,7 @@ function renderCatalog() {
 
       visibleGroups += 1;
       sectionVisibleItems += filteredItems.length;
-      sectionElement.querySelector(".section-groups").append(createGroupElement(group, filteredItems, forceOpen));
+      sectionElement.querySelector(".section-groups").append(createGroupElement(group, filteredItems, forceOpen, query));
     });
 
     if (visibleGroups) {
@@ -279,7 +316,7 @@ function renderCatalog() {
 
 }
 
-function createSectionElement(section, forceOpen = false) {
+function createSectionElement(section, forceOpen = false, query = "") {
   const sectionElement = document.createElement("details");
   sectionElement.className = "catalog-section";
   sectionElement.id = getSectionId(section);
@@ -289,9 +326,9 @@ function createSectionElement(section, forceOpen = false) {
   sectionElement.innerHTML = `
     <summary class="section-head">
       <div>
-        <p class="section-number">${section.number} раздел</p>
-        <h2>${section.title}</h2>
-        <p>${section.description}</p>
+        <p class="section-number">${highlightText(section.number, query)} раздел</p>
+        <h2>${highlightText(section.title, query)}</h2>
+        <p>${highlightText(section.description, query)}</p>
       </div>
       <span class="section-meta">
         <span class="section-count"><span data-section-count>0</span> элементов</span>
@@ -303,7 +340,7 @@ function createSectionElement(section, forceOpen = false) {
   return sectionElement;
 }
 
-function createGroupElement(group, items, forceOpen = false) {
+function createGroupElement(group, items, forceOpen = false, query = "") {
   const groupElement = document.createElement("details");
   groupElement.className = "catalog-group";
   groupElement.id = getGroupId(group);
@@ -311,13 +348,13 @@ function createGroupElement(group, items, forceOpen = false) {
   groupElement.tabIndex = -1;
   groupElement.open = forceOpen || getSavedOpenState(groupElement.dataset.collapseKey);
 
-  const cards = items.map(createCardElement);
+  const cards = items.map((item) => createCardElement(item, query));
   groupElement.innerHTML = `
     <summary class="group-head">
       <div>
-        <p class="group-number">${group.number}</p>
-        <h3>${group.title}</h3>
-        <p>${group.description}</p>
+        <p class="group-number">${highlightText(group.number, query)}</p>
+        <h3>${highlightText(group.title, query)}</h3>
+        <p>${highlightText(group.description, query)}</p>
       </div>
       <span class="group-meta">
         <span class="group-count">${items.length}</span>
@@ -334,7 +371,7 @@ function createGroupElement(group, items, forceOpen = false) {
   return groupElement;
 }
 
-function createCardElement(item) {
+function createCardElement(item, query = "") {
   const meta = serviceMeta[item.type] || serviceMeta.config;
   const link = document.createElement("a");
   link.className = "nav-card";
@@ -354,10 +391,10 @@ function createCardElement(item) {
     <span class="shine"></span>
     <img src="${meta.icon}" alt="" loading="lazy" />
     <div class="card-content">
-      <p class="item-number">${item.number}</p>
-      <h4>${item.title}</h4>
-      <p class="item-type">${meta.label}</p>
-      <div class="tags">${item.tags.map((tag) => `<span>${tag}</span>`).join("")}</div>
+      <p class="item-number">${highlightText(item.number, query)}</p>
+      <h4>${highlightText(item.title, query)}</h4>
+      <p class="item-type">${highlightText(meta.label, query)}</p>
+      <div class="tags">${item.tags.map((tag) => `<span>${highlightText(tag, query)}</span>`).join("")}</div>
     </div>
     <span class="arrow" aria-hidden="true">→</span>
   `;
@@ -387,6 +424,7 @@ function matchesQuery(item, group, section, query) {
 }
 
 function renderNavigationTree() {
+  const query = normalize(searchInput.value);
   const fragment = document.createDocumentFragment();
 
   ecosystemSections.forEach((section) => {
@@ -399,7 +437,7 @@ function renderNavigationTree() {
     sectionSummary.innerHTML = `
       <span class="tree-caret" aria-hidden="true"></span>
       <button class="tree-node tree-folder" type="button" data-focus-target="${getSectionId(section)}">
-        <span>${section.title}</span>
+        <span>${highlightText(section.title, query)}</span>
       </button>
     `;
     sectionNode.append(sectionSummary);
@@ -414,7 +452,7 @@ function renderNavigationTree() {
       groupSummary.innerHTML = `
         <span class="tree-caret" aria-hidden="true"></span>
         <button class="tree-node tree-folder" type="button" data-focus-target="${getGroupId(group)}">
-          <span>${group.title}</span>
+          <span>${highlightText(group.title, query)}</span>
         </button>
       `;
       groupNode.append(groupSummary);
@@ -427,7 +465,7 @@ function renderNavigationTree() {
         itemButton.type = "button";
         itemButton.className = "tree-node tree-file";
         itemButton.dataset.focusTarget = getItemId(item);
-        itemButton.innerHTML = `<span>${item.title}</span><small>${serviceMeta[item.type]?.label || item.type}</small>`;
+        itemButton.innerHTML = `<span>${highlightText(item.title, query)}</span><small>${highlightText(item.tags.join(", "), query)}</small>`;
         itemList.append(itemButton);
       });
 
@@ -528,10 +566,16 @@ function applyPreferences(nextPreferences) {
 
   document.documentElement.dataset.theme = nextPreferences.theme;
   document.documentElement.dataset.accent = nextPreferences.accent;
+  document.documentElement.style.setProperty(
+    "--sidebar-width",
+    `${clamp(Number(nextPreferences.sidebarWidth) || defaultPreferences.sidebarWidth, 260, 560)}px`,
+  );
   catalog.classList.remove("cards-view", "list-view", "compact-cards-view", "compact-list-view");
   catalog.classList.add(`${nextPreferences.view}-view`);
   document.documentElement.dataset.showNumbers = String(Boolean(nextPreferences.showNumbers));
+  document.documentElement.dataset.showTreeTags = String(Boolean(nextPreferences.showTreeTags));
   showNumbersInput.checked = Boolean(nextPreferences.showNumbers);
+  showTreeTagsInput.checked = Boolean(nextPreferences.showTreeTags);
   setActiveButton(themeButtons, "theme", nextPreferences.theme);
   setActiveButton(viewButtons, "view", nextPreferences.view);
   setActiveButton(accentButtons, "accent", nextPreferences.accent);
@@ -549,6 +593,38 @@ function normalize(value) {
   return value.toLowerCase().replaceAll("ё", "е").trim();
 }
 
+function highlightText(value, query) {
+  const text = String(value);
+  const normalizedQuery = normalize(query);
+
+  if (!normalizedQuery) {
+    return escapeHTML(text);
+  }
+
+  const normalizedText = normalize(text);
+  let cursor = 0;
+  let result = "";
+  let matchIndex = normalizedText.indexOf(normalizedQuery, cursor);
+
+  while (matchIndex !== -1) {
+    result += escapeHTML(text.slice(cursor, matchIndex));
+    result += `<mark class="search-mark">${escapeHTML(text.slice(matchIndex, matchIndex + normalizedQuery.length))}</mark>`;
+    cursor = matchIndex + normalizedQuery.length;
+    matchIndex = normalizedText.indexOf(normalizedQuery, cursor);
+  }
+
+  return result + escapeHTML(text.slice(cursor));
+}
+
+function escapeHTML(value) {
+  return String(value)
+    .replaceAll("&", "&amp;")
+    .replaceAll("<", "&lt;")
+    .replaceAll(">", "&gt;")
+    .replaceAll('"', "&quot;")
+    .replaceAll("'", "&#039;");
+}
+
 function getSectionId(section) {
   return `section-${section.id}`;
 }
diff --git a/styles.css b/styles.css
index 7dcf7aa..bfa5f2f 100644
--- a/styles.css
+++ b/styles.css
@@ -14,6 +14,7 @@
   --accent-rgb: 139, 92, 246;
   --card-x: 50%;
   --card-y: 50%;
+  --sidebar-width: 390px;
 }
 
 html[data-theme="light"] {
@@ -109,11 +110,42 @@ a {
 
 .app-layout {
   display: grid;
-  grid-template-columns: minmax(320px, 390px) minmax(0, 1fr);
-  gap: 12px;
+  grid-template-columns: var(--sidebar-width) 8px minmax(0, 1fr);
+  gap: 8px;
   align-items: start;
 }
 
+.sidebar-resizer {
+  position: sticky;
+  top: 20px;
+  width: 8px;
+  height: calc(100vh - 40px);
+  border-radius: 999px;
+  cursor: col-resize;
+  background: transparent;
+  transition: background 160ms ease;
+}
+
+.sidebar-resizer::before {
+  content: "";
+  display: block;
+  width: 2px;
+  height: 100%;
+  margin: 0 auto;
+  border-radius: inherit;
+  background: var(--border);
+}
+
+.sidebar-resizer:hover::before,
+body.is-resizing-sidebar .sidebar-resizer::before {
+  background: var(--accent);
+}
+
+body.is-resizing-sidebar {
+  cursor: col-resize;
+  user-select: none;
+}
+
 .side-panel {
   position: sticky;
   top: 20px;
@@ -187,6 +219,17 @@ html:not([data-show-numbers="true"]) .item-number {
   display: none;
 }
 
+html[data-show-tree-tags="false"] .tree-node small {
+  display: none;
+}
+
+.search-mark {
+  border-radius: 4px;
+  padding: 0 2px;
+  color: white;
+  background: linear-gradient(135deg, var(--accent), var(--accent-2));
+}
+
 .control-panel {
   position: fixed;
   z-index: 1001;
@@ -604,6 +647,10 @@ html:not([data-show-numbers="true"]) .item-number {
 }
 
 .tree-node small {
+  min-width: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
   color: var(--accent);
   font-size: 0.68rem;
   font-weight: 800;
@@ -1024,7 +1071,7 @@ html:not([data-show-numbers="true"]) .item-number {
 
 @media (max-width: 1120px) {
   .app-layout {
-    grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
+    grid-template-columns: minmax(240px, min(var(--sidebar-width), 320px)) 8px minmax(0, 1fr);
   }
 
   .items-grid {
@@ -1046,6 +1093,10 @@ html:not([data-show-numbers="true"]) .item-number {
     grid-template-columns: 1fr;
   }
 
+  .sidebar-resizer {
+    display: none;
+  }
+
   .side-panel {
     position: static;
   }