diff --git a/en/index.html b/en/index.html
index ab717f0bb..5ac4b3a64 100644
--- a/en/index.html
+++ b/en/index.html
@@ -32,7 +32,7 @@
     </div>
     <div data-md-color-primary="black" data-md-color-scheme="slate" data-md-component="announce">
     </div>
-    <header class="md-header md-header--shadow" data-md-color-primary="black" data-md-color-scheme="slate" data-md-component="header">
+    <header class="md-header md-header--landing" data-md-color-primary="black" data-md-color-scheme="slate" data-md-component="header">
       <nav aria-label="Header" class="md-header__inner md-grid">
         <a aria-label="Hello Algo" class="md-header__button md-logo" data-md-component="logo" href="." title="Hello Algo">
           <img alt="logo" src="assets/images/logo.svg"/>
@@ -57,22 +57,6 @@
             </div>
           </div>
         </div>
-        <form class="md-header__option" data-md-component="palette">
-          <input aria-label="Dark mode" class="md-option" data-md-color-accent="teal" data-md-color-media="" data-md-color-primary="white" data-md-color-scheme="default" id="__palette_0" name="__palette" type="radio"/>
-          <label class="md-header__button md-icon" for="__palette_1" hidden="" title="Dark mode">
-            <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-              <path d="M7.5 2c-1.79 1.15-3 3.18-3 5.5s1.21 4.35 3.03 5.5C4.46 13 2 10.54 2 7.5A5.5 5.5 0 0 1 7.5 2m11.57 1.5 1.43 1.43L4.93 20.5 3.5 19.07 19.07 3.5m-6.18 2.43L11.41 5 9.97 6l.42-1.7L9 3.24l1.75-.12.58-1.65L12 3.1l1.73.03-1.35 1.13.51 1.67m-3.3 3.61-1.16-.73-1.12.78.34-1.32-1.09-.83 1.36-.09.45-1.29.51 1.27 1.36.03-1.05.87.4 1.31M19 13.5a5.5 5.5 0 0 1-5.5 5.5c-1.22 0-2.35-.4-3.26-1.07l7.69-7.69c.67.91 1.07 2.04 1.07 3.26m-4.4 6.58 2.77-1.15-.24 3.35-2.53-2.2m4.33-2.7 1.15-2.77 2.2 2.54-3.35.23m1.15-4.96-1.14-2.78 3.34.24-2.2 2.54M9.63 18.93l2.77 1.15-2.53 2.19-.24-3.34Z">
-              </path>
-            </svg>
-          </label>
-          <input aria-label="Light mode" class="md-option" data-md-color-accent="teal" data-md-color-media="" data-md-color-primary="black" data-md-color-scheme="slate" id="__palette_1" name="__palette" type="radio"/>
-          <label class="md-header__button md-icon" for="__palette_0" hidden="" title="Light mode">
-            <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-              <path d="M7.5 2c-1.79 1.15-3 3.18-3 5.5s1.21 4.35 3.03 5.5C4.46 13 2 10.54 2 7.5A5.5 5.5 0 0 1 7.5 2m11.57 1.5 1.43 1.43L4.93 20.5 3.5 19.07 19.07 3.5m-6.18 2.43L11.41 5 9.97 6l.42-1.7L9 3.24l1.75-.12.58-1.65L12 3.1l1.73.03-1.35 1.13.51 1.67m-3.3 3.61-1.16-.73-1.12.78.34-1.32-1.09-.83 1.36-.09.45-1.29.51 1.27 1.36.03-1.05.87.4 1.31M19 13.5a5.5 5.5 0 0 1-5.5 5.5c-1.22 0-2.35-.4-3.26-1.07l7.69-7.69c.67.91 1.07 2.04 1.07 3.26m-4.4 6.58 2.77-1.15-.24 3.35-2.53-2.2m4.33-2.7 1.15-2.77 2.2 2.54-3.35.23m1.15-4.96-1.14-2.78 3.34.24-2.2 2.54M9.63 18.93l2.77 1.15-2.53 2.19-.24-3.34Z">
-              </path>
-            </svg>
-          </label>
-        </form>
         <script>
           var media,input,key,value,palette=__md_get("__palette");if(palette&&palette.color){"(prefers-color-scheme)"===palette.color.media&&(media=matchMedia("(prefers-color-scheme: light)"),input=document.querySelector(media.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: dark)']"),palette.color.media=input.getAttribute("data-md-color-media"),palette.color.scheme=input.getAttribute("data-md-color-scheme"),palette.color.primary=input.getAttribute("data-md-color-primary"),palette.color.accent=input.getAttribute("data-md-color-accent"));for([key,value]of Object.entries(palette.color))document.body.setAttribute("data-md-color-"+key,value)}
         </script>
@@ -105,58 +89,6 @@
             </div>
           </div>
         </div>
-        <label class="md-header__button md-icon" for="__search">
-          <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-            <path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z" fill="var(--md-default-fg-color)">
-            </path>
-          </svg>
-        </label>
-        <div class="md-search" data-md-component="search" role="dialog">
-          <label class="md-search__overlay" for="__search">
-          </label>
-          <div class="md-search__inner" role="search">
-            <form class="md-search__form" name="search">
-              <input aria-label="Search" autocapitalize="off" autocomplete="off" autocorrect="off" class="md-search__input" data-md-component="search-query" name="query" placeholder="Search" required="" spellcheck="false" type="text"/>
-              <label class="md-search__icon md-icon" for="__search">
-                <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                  <path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z" fill="var(--md-default-fg-color)">
-                  </path>
-                </svg>
-                <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                  <path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z">
-                  </path>
-                </svg>
-              </label>
-              <nav aria-label="Search" class="md-search__options">
-                <a aria-label="Share" class="md-search__icon md-icon" data-clipboard="" data-clipboard-text="" data-md-component="search-share" href="javascript:void(0)" tabindex="-1" title="Share">
-                  <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                    <path d="M18 16.08c-.76 0-1.44.3-1.96.77L8.91 12.7c.05-.23.09-.46.09-.7 0-.24-.04-.47-.09-.7l7.05-4.11c.54.5 1.25.81 2.04.81a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3c0 .24.04.47.09.7L8.04 9.81C7.5 9.31 6.79 9 6 9a3 3 0 0 0-3 3 3 3 0 0 0 3 3c.79 0 1.5-.31 2.04-.81l7.12 4.15c-.05.21-.08.43-.08.66 0 1.61 1.31 2.91 2.92 2.91 1.61 0 2.92-1.3 2.92-2.91A2.92 2.92 0 0 0 18 16.08Z">
-                    </path>
-                  </svg>
-                </a>
-                <button aria-label="Clear" class="md-search__icon md-icon" tabindex="-1" title="Clear" type="reset">
-                  <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                    <path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41Z">
-                    </path>
-                  </svg>
-                </button>
-              </nav>
-              <div class="md-search__suggest" data-md-component="search-suggest">
-              </div>
-            </form>
-            <div class="md-search__output">
-              <div class="md-search__scrollwrap" data-md-scrollfix="">
-                <div class="md-search-result" data-md-component="search-result">
-                  <div class="md-search-result__meta">
-                    Initializing search
-                  </div>
-                  <ol class="md-search-result__list" role="presentation">
-                  </ol>
-                </div>
-              </div>
-            </div>
-          </div>
-        </div>
         <div class="md-header__source">
           <a class="md-source" data-md-component="source" href="https://github.com/krahets/hello-algo" title="Go to repository">
             <div class="md-source__icon md-icon">
diff --git a/en/sitemap.xml.gz b/en/sitemap.xml.gz
index 576b7ff11..f13ba7e82 100644
Binary files a/en/sitemap.xml.gz and b/en/sitemap.xml.gz differ
diff --git a/en/stylesheets/extra.css b/en/stylesheets/extra.css
index 7badd49bc..06421472a 100644
--- a/en/stylesheets/extra.css
+++ b/en/stylesheets/extra.css
@@ -65,7 +65,8 @@
   background-color: var(--md-header-bg-color);
 }
 
-.md-header {
+.md-header--shadow,
+.md-header--landing {
   box-shadow: none;
   transition: none;
   backdrop-filter: saturate(180%) blur(20px); /* Gaussian blur */
diff --git a/index.html b/index.html
index 5dc9de06e..d1ecdaad3 100644
--- a/index.html
+++ b/index.html
@@ -32,7 +32,7 @@
     </div>
     <div data-md-color-primary="black" data-md-color-scheme="slate" data-md-component="announce">
     </div>
-    <header class="md-header md-header--shadow" data-md-color-primary="black" data-md-color-scheme="slate" data-md-component="header">
+    <header class="md-header md-header--landing" data-md-color-primary="black" data-md-color-scheme="slate" data-md-component="header">
       <nav aria-label="页眉" class="md-header__inner md-grid">
         <a aria-label="Hello 算法" class="md-header__button md-logo" data-md-component="logo" href="." title="Hello 算法">
           <img alt="logo" src="assets/images/logo.svg"/>
@@ -57,22 +57,6 @@
             </div>
           </div>
         </div>
-        <form class="md-header__option" data-md-component="palette">
-          <input aria-label="深色模式" class="md-option" data-md-color-accent="teal" data-md-color-media="" data-md-color-primary="white" data-md-color-scheme="default" id="__palette_0" name="__palette" type="radio"/>
-          <label class="md-header__button md-icon" for="__palette_1" hidden="" title="深色模式">
-            <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-              <path d="M7.5 2c-1.79 1.15-3 3.18-3 5.5s1.21 4.35 3.03 5.5C4.46 13 2 10.54 2 7.5A5.5 5.5 0 0 1 7.5 2m11.57 1.5 1.43 1.43L4.93 20.5 3.5 19.07 19.07 3.5m-6.18 2.43L11.41 5 9.97 6l.42-1.7L9 3.24l1.75-.12.58-1.65L12 3.1l1.73.03-1.35 1.13.51 1.67m-3.3 3.61-1.16-.73-1.12.78.34-1.32-1.09-.83 1.36-.09.45-1.29.51 1.27 1.36.03-1.05.87.4 1.31M19 13.5a5.5 5.5 0 0 1-5.5 5.5c-1.22 0-2.35-.4-3.26-1.07l7.69-7.69c.67.91 1.07 2.04 1.07 3.26m-4.4 6.58 2.77-1.15-.24 3.35-2.53-2.2m4.33-2.7 1.15-2.77 2.2 2.54-3.35.23m1.15-4.96-1.14-2.78 3.34.24-2.2 2.54M9.63 18.93l2.77 1.15-2.53 2.19-.24-3.34Z">
-              </path>
-            </svg>
-          </label>
-          <input aria-label="浅色模式" class="md-option" data-md-color-accent="teal" data-md-color-media="" data-md-color-primary="black" data-md-color-scheme="slate" id="__palette_1" name="__palette" type="radio"/>
-          <label class="md-header__button md-icon" for="__palette_0" hidden="" title="浅色模式">
-            <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-              <path d="M7.5 2c-1.79 1.15-3 3.18-3 5.5s1.21 4.35 3.03 5.5C4.46 13 2 10.54 2 7.5A5.5 5.5 0 0 1 7.5 2m11.57 1.5 1.43 1.43L4.93 20.5 3.5 19.07 19.07 3.5m-6.18 2.43L11.41 5 9.97 6l.42-1.7L9 3.24l1.75-.12.58-1.65L12 3.1l1.73.03-1.35 1.13.51 1.67m-3.3 3.61-1.16-.73-1.12.78.34-1.32-1.09-.83 1.36-.09.45-1.29.51 1.27 1.36.03-1.05.87.4 1.31M19 13.5a5.5 5.5 0 0 1-5.5 5.5c-1.22 0-2.35-.4-3.26-1.07l7.69-7.69c.67.91 1.07 2.04 1.07 3.26m-4.4 6.58 2.77-1.15-.24 3.35-2.53-2.2m4.33-2.7 1.15-2.77 2.2 2.54-3.35.23m1.15-4.96-1.14-2.78 3.34.24-2.2 2.54M9.63 18.93l2.77 1.15-2.53 2.19-.24-3.34Z">
-              </path>
-            </svg>
-          </label>
-        </form>
         <script>
           var media,input,key,value,palette=__md_get("__palette");if(palette&&palette.color){"(prefers-color-scheme)"===palette.color.media&&(media=matchMedia("(prefers-color-scheme: light)"),input=document.querySelector(media.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: dark)']"),palette.color.media=input.getAttribute("data-md-color-media"),palette.color.scheme=input.getAttribute("data-md-color-scheme"),palette.color.primary=input.getAttribute("data-md-color-primary"),palette.color.accent=input.getAttribute("data-md-color-accent"));for([key,value]of Object.entries(palette.color))document.body.setAttribute("data-md-color-"+key,value)}
         </script>
@@ -105,58 +89,6 @@
             </div>
           </div>
         </div>
-        <label class="md-header__button md-icon" for="__search">
-          <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-            <path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z" fill="var(--md-default-fg-color)">
-            </path>
-          </svg>
-        </label>
-        <div class="md-search" data-md-component="search" role="dialog">
-          <label class="md-search__overlay" for="__search">
-          </label>
-          <div class="md-search__inner" role="search">
-            <form class="md-search__form" name="search">
-              <input aria-label="搜索" autocapitalize="off" autocomplete="off" autocorrect="off" class="md-search__input" data-md-component="search-query" name="query" placeholder="搜索" required="" spellcheck="false" type="text"/>
-              <label class="md-search__icon md-icon" for="__search">
-                <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                  <path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z" fill="var(--md-default-fg-color)">
-                  </path>
-                </svg>
-                <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                  <path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z">
-                  </path>
-                </svg>
-              </label>
-              <nav aria-label="查找" class="md-search__options">
-                <a aria-label="分享" class="md-search__icon md-icon" data-clipboard="" data-clipboard-text="" data-md-component="search-share" href="javascript:void(0)" tabindex="-1" title="分享">
-                  <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                    <path d="M18 16.08c-.76 0-1.44.3-1.96.77L8.91 12.7c.05-.23.09-.46.09-.7 0-.24-.04-.47-.09-.7l7.05-4.11c.54.5 1.25.81 2.04.81a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3c0 .24.04.47.09.7L8.04 9.81C7.5 9.31 6.79 9 6 9a3 3 0 0 0-3 3 3 3 0 0 0 3 3c.79 0 1.5-.31 2.04-.81l7.12 4.15c-.05.21-.08.43-.08.66 0 1.61 1.31 2.91 2.92 2.91 1.61 0 2.92-1.3 2.92-2.91A2.92 2.92 0 0 0 18 16.08Z">
-                    </path>
-                  </svg>
-                </a>
-                <button aria-label="清空当前内容" class="md-search__icon md-icon" tabindex="-1" title="清空当前内容" type="reset">
-                  <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                    <path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41Z">
-                    </path>
-                  </svg>
-                </button>
-              </nav>
-              <div class="md-search__suggest" data-md-component="search-suggest">
-              </div>
-            </form>
-            <div class="md-search__output">
-              <div class="md-search__scrollwrap" data-md-scrollfix="">
-                <div class="md-search-result" data-md-component="search-result">
-                  <div class="md-search-result__meta">
-                    正在初始化搜索引擎
-                  </div>
-                  <ol class="md-search-result__list" role="presentation">
-                  </ol>
-                </div>
-              </div>
-            </div>
-          </div>
-        </div>
         <div class="md-header__source">
           <a class="md-source" data-md-component="source" href="https://github.com/krahets/hello-algo" title="前往仓库">
             <div class="md-source__icon md-icon">
diff --git a/sitemap.xml.gz b/sitemap.xml.gz
index c7e559274..55cb35447 100644
Binary files a/sitemap.xml.gz and b/sitemap.xml.gz differ
diff --git a/stylesheets/extra.css b/stylesheets/extra.css
index 7badd49bc..06421472a 100644
--- a/stylesheets/extra.css
+++ b/stylesheets/extra.css
@@ -65,7 +65,8 @@
   background-color: var(--md-header-bg-color);
 }
 
-.md-header {
+.md-header--shadow,
+.md-header--landing {
   box-shadow: none;
   transition: none;
   backdrop-filter: saturate(180%) blur(20px); /* Gaussian blur */
diff --git a/zh-hant/index.html b/zh-hant/index.html
index eb1f6471b..718b790d5 100644
--- a/zh-hant/index.html
+++ b/zh-hant/index.html
@@ -32,7 +32,7 @@
     </div>
     <div data-md-color-primary="black" data-md-color-scheme="slate" data-md-component="announce">
     </div>
-    <header class="md-header md-header--shadow" data-md-color-primary="black" data-md-color-scheme="slate" data-md-component="header">
+    <header class="md-header md-header--landing" data-md-color-primary="black" data-md-color-scheme="slate" data-md-component="header">
       <nav aria-label="頁首" class="md-header__inner md-grid">
         <a aria-label="Hello 演算法" class="md-header__button md-logo" data-md-component="logo" href="." title="Hello 演算法">
           <img alt="logo" src="assets/images/logo.svg"/>
@@ -57,22 +57,6 @@
             </div>
           </div>
         </div>
-        <form class="md-header__option" data-md-component="palette">
-          <input aria-label="深色模式" class="md-option" data-md-color-accent="teal" data-md-color-media="" data-md-color-primary="white" data-md-color-scheme="default" id="__palette_0" name="__palette" type="radio"/>
-          <label class="md-header__button md-icon" for="__palette_1" hidden="" title="深色模式">
-            <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-              <path d="M7.5 2c-1.79 1.15-3 3.18-3 5.5s1.21 4.35 3.03 5.5C4.46 13 2 10.54 2 7.5A5.5 5.5 0 0 1 7.5 2m11.57 1.5 1.43 1.43L4.93 20.5 3.5 19.07 19.07 3.5m-6.18 2.43L11.41 5 9.97 6l.42-1.7L9 3.24l1.75-.12.58-1.65L12 3.1l1.73.03-1.35 1.13.51 1.67m-3.3 3.61-1.16-.73-1.12.78.34-1.32-1.09-.83 1.36-.09.45-1.29.51 1.27 1.36.03-1.05.87.4 1.31M19 13.5a5.5 5.5 0 0 1-5.5 5.5c-1.22 0-2.35-.4-3.26-1.07l7.69-7.69c.67.91 1.07 2.04 1.07 3.26m-4.4 6.58 2.77-1.15-.24 3.35-2.53-2.2m4.33-2.7 1.15-2.77 2.2 2.54-3.35.23m1.15-4.96-1.14-2.78 3.34.24-2.2 2.54M9.63 18.93l2.77 1.15-2.53 2.19-.24-3.34Z">
-              </path>
-            </svg>
-          </label>
-          <input aria-label="淺色模式" class="md-option" data-md-color-accent="teal" data-md-color-media="" data-md-color-primary="black" data-md-color-scheme="slate" id="__palette_1" name="__palette" type="radio"/>
-          <label class="md-header__button md-icon" for="__palette_0" hidden="" title="淺色模式">
-            <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-              <path d="M7.5 2c-1.79 1.15-3 3.18-3 5.5s1.21 4.35 3.03 5.5C4.46 13 2 10.54 2 7.5A5.5 5.5 0 0 1 7.5 2m11.57 1.5 1.43 1.43L4.93 20.5 3.5 19.07 19.07 3.5m-6.18 2.43L11.41 5 9.97 6l.42-1.7L9 3.24l1.75-.12.58-1.65L12 3.1l1.73.03-1.35 1.13.51 1.67m-3.3 3.61-1.16-.73-1.12.78.34-1.32-1.09-.83 1.36-.09.45-1.29.51 1.27 1.36.03-1.05.87.4 1.31M19 13.5a5.5 5.5 0 0 1-5.5 5.5c-1.22 0-2.35-.4-3.26-1.07l7.69-7.69c.67.91 1.07 2.04 1.07 3.26m-4.4 6.58 2.77-1.15-.24 3.35-2.53-2.2m4.33-2.7 1.15-2.77 2.2 2.54-3.35.23m1.15-4.96-1.14-2.78 3.34.24-2.2 2.54M9.63 18.93l2.77 1.15-2.53 2.19-.24-3.34Z">
-              </path>
-            </svg>
-          </label>
-        </form>
         <script>
           var media,input,key,value,palette=__md_get("__palette");if(palette&&palette.color){"(prefers-color-scheme)"===palette.color.media&&(media=matchMedia("(prefers-color-scheme: light)"),input=document.querySelector(media.matches?"[data-md-color-media='(prefers-color-scheme: light)']":"[data-md-color-media='(prefers-color-scheme: dark)']"),palette.color.media=input.getAttribute("data-md-color-media"),palette.color.scheme=input.getAttribute("data-md-color-scheme"),palette.color.primary=input.getAttribute("data-md-color-primary"),palette.color.accent=input.getAttribute("data-md-color-accent"));for([key,value]of Object.entries(palette.color))document.body.setAttribute("data-md-color-"+key,value)}
         </script>
@@ -105,58 +89,6 @@
             </div>
           </div>
         </div>
-        <label class="md-header__button md-icon" for="__search">
-          <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-            <path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z" fill="var(--md-default-fg-color)">
-            </path>
-          </svg>
-        </label>
-        <div class="md-search" data-md-component="search" role="dialog">
-          <label class="md-search__overlay" for="__search">
-          </label>
-          <div class="md-search__inner" role="search">
-            <form class="md-search__form" name="search">
-              <input aria-label="搜尋" autocapitalize="off" autocomplete="off" autocorrect="off" class="md-search__input" data-md-component="search-query" name="query" placeholder="搜尋" required="" spellcheck="false" type="text"/>
-              <label class="md-search__icon md-icon" for="__search">
-                <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                  <path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5Z" fill="var(--md-default-fg-color)">
-                  </path>
-                </svg>
-                <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                  <path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12Z">
-                  </path>
-                </svg>
-              </label>
-              <nav aria-label="搜尋" class="md-search__options">
-                <a aria-label="分享" class="md-search__icon md-icon" data-clipboard="" data-clipboard-text="" data-md-component="search-share" href="javascript:void(0)" tabindex="-1" title="分享">
-                  <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                    <path d="M18 16.08c-.76 0-1.44.3-1.96.77L8.91 12.7c.05-.23.09-.46.09-.7 0-.24-.04-.47-.09-.7l7.05-4.11c.54.5 1.25.81 2.04.81a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3c0 .24.04.47.09.7L8.04 9.81C7.5 9.31 6.79 9 6 9a3 3 0 0 0-3 3 3 3 0 0 0 3 3c.79 0 1.5-.31 2.04-.81l7.12 4.15c-.05.21-.08.43-.08.66 0 1.61 1.31 2.91 2.92 2.91 1.61 0 2.92-1.3 2.92-2.91A2.92 2.92 0 0 0 18 16.08Z">
-                    </path>
-                  </svg>
-                </a>
-                <button aria-label="清空" class="md-search__icon md-icon" tabindex="-1" title="清空" type="reset">
-                  <svg viewbox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
-                    <path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41Z">
-                    </path>
-                  </svg>
-                </button>
-              </nav>
-              <div class="md-search__suggest" data-md-component="search-suggest">
-              </div>
-            </form>
-            <div class="md-search__output">
-              <div class="md-search__scrollwrap" data-md-scrollfix="">
-                <div class="md-search-result" data-md-component="search-result">
-                  <div class="md-search-result__meta">
-                    正在初始化搜尋引擎
-                  </div>
-                  <ol class="md-search-result__list" role="presentation">
-                  </ol>
-                </div>
-              </div>
-            </div>
-          </div>
-        </div>
         <div class="md-header__source">
           <a class="md-source" data-md-component="source" href="https://github.com/krahets/hello-algo" title="前往倉庫">
             <div class="md-source__icon md-icon">
diff --git a/zh-hant/sitemap.xml.gz b/zh-hant/sitemap.xml.gz
index adf9437ab..d73947f50 100644
Binary files a/zh-hant/sitemap.xml.gz and b/zh-hant/sitemap.xml.gz differ
diff --git a/zh-hant/stylesheets/extra.css b/zh-hant/stylesheets/extra.css
index 7badd49bc..06421472a 100644
--- a/zh-hant/stylesheets/extra.css
+++ b/zh-hant/stylesheets/extra.css
@@ -65,7 +65,8 @@
   background-color: var(--md-header-bg-color);
 }
 
-.md-header {
+.md-header--shadow,
+.md-header--landing {
   box-shadow: none;
   transition: none;
   backdrop-filter: saturate(180%) blur(20px); /* Gaussian blur */