diff --git a/astro.config.mjs b/astro.config.mjs
index 16f9289..0f91b92 100644
--- a/astro.config.mjs
+++ b/astro.config.mjs
@@ -5,6 +5,7 @@ import svelte from "@astrojs/svelte";
 import rehypeMermaid from "rehype-mermaid";
 import remarkMath from "remark-math";
 import rehypeKatex from "rehype-katex";
+import rehypeImageCaptions from "./src/plugins/rehype-image-captions.mjs";
 // https://astro.build/config
 import { fileURLToPath } from 'node:url'
 
@@ -27,6 +28,7 @@ export default defineConfig({
       excludeLangs: ['mermaid', 'math'],
     },
     rehypePlugins: [
+      rehypeImageCaptions,
       rehypeMermaid,
       rehypeKatex,
     ],
diff --git a/src/components/FloatingActions.astro b/src/components/FloatingActions.astro
index 72da520..20d1f0c 100644
--- a/src/components/FloatingActions.astro
+++ b/src/components/FloatingActions.astro
@@ -62,14 +62,13 @@
         border-right: var(--deep-blue) 2.5px solid;
         border-bottom: var(--deep-blue) 2.5px solid;
         border-radius: 999px;
-        background: rgba(255, 255, 255, 0.92);
+        background: color-mix(in srgb, var(--background-color) 94%, transparent);
         color: #222;
         /* box-shadow: 0 4px 14px rgba(0, 0, 0, 0.16); */
         cursor: pointer;
         display: flex;
         align-items: center;
         justify-content: center;
-        backdrop-filter: blur(6px);
     }
 
     #theme-toggle-fab {
@@ -141,10 +140,16 @@
 
     :global(.dark) #theme-toggle-fab,
     :global(.dark) #back-to-top {
-        background: rgba(34, 34, 34, 0.92);
+        background: color-mix(
+            in srgb,
+            var(--background-color-dark) 94%,
+            transparent
+        );
         color: #f5f5f5;
-        box-shadow: 0 4px 14px rgba(0, 0, 0, 0.32);
-        border: #515151 2px solid;
+        border-top-color: #515151;
+        border-left-color: #515151;
+        border-right-color: #515151;
+        border-bottom-color: #515151;
     }
 
     @media (max-width: 640px) {
diff --git a/src/components/Footer.astro b/src/components/Footer.astro
index 271ad87..895a3f1 100644
--- a/src/components/Footer.astro
+++ b/src/components/Footer.astro
@@ -9,7 +9,9 @@ const t = getTranslations(lang);
 ---
 
 <footer class="footer">
-  <Divider />
+  <div class="footer-divider" data-footer-divider>
+    <Divider />
+  </div>
   <a
     href="https://github.com/ClovertaTheTrilobita/SanYeCao-blog"
     class="github"
diff --git a/src/components/FriendlyLinks/FriendsDescription.astro b/src/components/FriendlyLinks/FriendsDescription.astro
index a1e2dad..1ace251 100644
--- a/src/components/FriendlyLinks/FriendsDescription.astro
+++ b/src/components/FriendlyLinks/FriendsDescription.astro
@@ -20,7 +20,7 @@ const t = getTranslations(lang);
         {t.friends.content.map((line: string) => <p set:html={line} />)}
     </div>
     <div class="friend-code-block">
-        <pre><code>---
+        <pre data-language="yaml"><code class="language-yaml">---
 name: 'CLoverta的博客'
 description: "欢迎光临，请进门左转"
 url: "https://blog.cloverta.top"
@@ -59,27 +59,35 @@ avatar: 'https://s2.loli.net/2025/11/22/tiDKuzdqycx1v9B.png'
     }
 
     .friend-code-block {
-        background: #fbf5f2;
-        border: 1px solid #8fa1ad;
-        border-radius: 3px;
-        padding: 0rem;
-        overflow-x: auto;
-        /* color: var(--text-color); */
+        min-width: 0;
+        margin-top: 1rem;
     }
 
-    :global(.dark) .friend-code-block {
-        background: rgba(127, 127, 127, 0.12);
+    .friend-code-block :global(.code-block-wrapper) {
+        margin: 0;
+        overflow: hidden;
+        border: 1px solid #8fa1ad;
+        border-radius: 3px;
     }
 
     .friend-code-block pre {
         margin: 0;
+        background: var(--comment-background);
     }
 
     .friend-code-block code {
-        font-family: monospace;
+        font-family: "Maple Mono", monospace;
         white-space: pre;
     }
 
+    :global(.dark) .friend-code-block :global(.code-block-wrapper) {
+        border-color: rgba(170, 183, 196, 0.45);
+    }
+
+    :global(.dark) .friend-code-block pre {
+        background: rgba(127, 127, 127, 0.12);
+    }
+
     .image-wrap {
         width: fit-content;
         margin: 0 auto;
diff --git a/src/components/Header.astro b/src/components/Header.astro
index cb46986..8cc060f 100644
--- a/src/components/Header.astro
+++ b/src/components/Header.astro
@@ -8,41 +8,55 @@ const lang = getLangFromUrl(Astro.url);
 const t = getTranslations(lang);
 ---
 
-<header class="site-header">
-    <div class="theme-icon-wrap">
-        <ThemeIcon />
-    </div>
+<div class="header-slot">
+    <header class="site-header">
+        <div class="header-content">
+            <div class="theme-icon-wrap">
+                <ThemeIcon />
+            </div>
 
-    <nav class="header-nav">
-        <div class="banner">
-            <a
-                href={`/${lang}/`}
-                data-astro-reload
-                class="banner-link"
-                aria-label="banner"
-            >
-                <span class="banner-logo"></span>
-            </a>
+            <nav class="header-nav">
+                <div class="banner">
+                    <a
+                        href={`/${lang}/`}
+                        data-astro-reload
+                        class="banner-link"
+                        aria-label="banner"
+                    >
+                        <span class="banner-logo"></span>
+                    </a>
+                </div>
+                <Navigation />
+            </nav>
         </div>
-        <Navigation />
-    </nav>
-    <div class="divider">
-        <Divider />
-    </div>
-</header>
+        <div class="divider">
+            <Divider />
+        </div>
+    </header>
+</div>
 
 <style>
+    .site-header {
+        position: relative;
+        z-index: 30;
+        padding-top: 0.5rem;
+    }
+
+    .header-content {
+        position: relative;
+    }
+
     .banner-link {
-        display: inline-block;
+        display: block;
     }
 
     .banner-logo {
         display: block;
-        height: 55px; /* 按你的 banner 比例改 */
+        height: 55px;
         background-color: #1f2328;
-
         -webkit-mask: url("/images/banner-black.svg") no-repeat left / contain;
         mask: url("/images/banner-black.svg") no-repeat left / contain;
+        transform-origin: left center;
     }
 
     :global(html.dark .banner-logo) {
@@ -55,11 +69,6 @@ const t = getTranslations(lang);
         display: block;
     }
 
-    .site-header {
-        position: relative;
-        padding-top: 0.5rem;
-    }
-
     .theme-icon-wrap {
         position: absolute;
         top: 0;
@@ -71,17 +80,14 @@ const t = getTranslations(lang);
         display: flex;
         flex-direction: column;
         gap: 1rem;
+        max-height: 12rem;
     }
 
     .header-nav .banner {
         margin: 0;
         font-style: italic;
         line-height: 1.1;
-
-        /* 给右上角 ThemeIcon 留空间 */
         max-width: calc(100% - 7rem);
-
-        /* 桌面正常，手机自动缩小 */
         font-size: clamp(1.6rem, 6vw, 2.5rem);
     }
 
@@ -90,8 +96,106 @@ const t = getTranslations(lang);
         margin-bottom: 2rem;
     }
 
-    @media (max-width: 768px) {
+    @media (min-width: 769px) {
+        .header-slot {
+            /* Keep document height independent of scroll-driven header height. */
+            display: flow-root;
+            position: sticky;
+            top: 0;
+            z-index: 30;
+            height: var(--header-slot-height, auto);
+            pointer-events: none;
+        }
+
         .site-header {
+            pointer-events: auto;
+            width: 100%;
+            max-width: 90ch;
+            margin-inline: auto;
+            padding: 0.5rem 0 0;
+            background-color: color-mix(
+                in srgb,
+                var(--background-color) var(--header-surface-weight, 0%),
+                transparent
+            );
+            transform: translateY(0);
+            transition: transform 0.3s ease;
+        }
+
+        .header-content {
+            width: 100%;
+        }
+
+        .header-slot.is-scroll-hidden .site-header,
+        .header-slot.is-footer-hidden .site-header {
+            transform: translateY(calc(-100% - 0.5rem));
+        }
+
+        :global(html.dark) .site-header {
+            background-color: color-mix(
+                in srgb,
+                #1e1e1e var(--header-surface-weight, 0%),
+                transparent
+            );
+        }
+
+        .theme-icon-wrap {
+            top: var(--theme-top, 0);
+            right: 0;
+        }
+
+        .header-nav {
+            gap: var(--header-gap, 1rem);
+            height: var(--header-nav-height, auto);
+            max-height: var(--header-nav-height, 12rem);
+            transform: translateY(var(--header-nav-y, 0));
+        }
+
+        .header-nav .banner {
+            flex-shrink: 0;
+            width: var(--banner-width, auto);
+            max-width: var(--banner-width, calc(100% - 7rem));
+        }
+
+        .banner-logo {
+            height: var(--logo-height, 55px);
+        }
+
+        .site-header :global(.site-nav) {
+            width: var(--site-nav-width, auto);
+            margin: var(--site-nav-margin, 1rem) 0;
+            padding-bottom: var(--site-nav-padding, 1rem);
+            transform: translate(var(--site-nav-x, 0), var(--site-nav-y, 0));
+        }
+
+        .site-header :global(.site-nav-desktop) {
+            gap: var(--site-nav-gap, 1.5rem);
+        }
+
+        .site-header :global(.site-nav a) {
+            font-size: var(--site-nav-font-size, 1.05rem);
+        }
+
+        .site-header > .divider {
+            width: 100%;
+            margin-top: var(--divider-margin-top, 0.2rem);
+            margin-bottom: var(--divider-margin-bottom, 2rem);
+            transform: translateY(var(--divider-y, 0));
+        }
+
+        .site-header > .divider :global(.divider) {
+            width: 100%;
+            margin-bottom: var(--divider-inner-margin-bottom, 1rem);
+        }
+    }
+
+    @media (max-width: 768px) {
+        .header-slot {
+            display: contents;
+        }
+
+        .site-header {
+            position: relative;
             padding-top: 0.25rem;
         }
 
@@ -101,3 +205,268 @@ const t = getTranslations(lang);
         }
     }
 </style>
+
+<script>
+    const desktopHeaderQuery = window.matchMedia("(min-width: 769px)");
+    const HEADER_SCROLL_DISTANCE = 120;
+    const DIRECTION_TRIGGER_DISTANCE = 6;
+    const headerStyleProperties = [
+        "--header-surface-weight",
+        "--theme-top",
+        "--header-gap",
+        "--header-nav-height",
+        "--header-nav-y",
+        "--banner-width",
+        "--logo-height",
+        "--site-nav-width",
+        "--site-nav-margin",
+        "--site-nav-padding",
+        "--site-nav-x",
+        "--site-nav-y",
+        "--site-nav-gap",
+        "--site-nav-font-size",
+        "--divider-margin-top",
+        "--divider-margin-bottom",
+        "--divider-inner-margin-bottom",
+        "--divider-y",
+    ];
+
+    type HeaderMetrics = {
+        header: HTMLElement;
+        expandedWidth: number;
+        expandedNavHeight: number;
+        expandedBannerWidth: number;
+        expandedSiteNavWidth: number;
+        rootFontSize: number;
+    };
+
+    let headerFrame = 0;
+    let headerMetrics: HeaderMetrics | null = null;
+    let footerDividerObserver: IntersectionObserver | null = null;
+    let isFooterDividerVisible = false;
+    let lastScrollY = window.scrollY;
+    let scrollDirection = 0;
+    let directionDistance = 0;
+
+    const lerp = (start: number, end: number, progress: number) =>
+        start + (end - start) * progress;
+
+    function clearHeaderStyles(header: HTMLElement) {
+        headerStyleProperties.forEach((property) => {
+            header.style.removeProperty(property);
+        });
+    }
+
+    function measureHeader(header: HTMLElement): HeaderMetrics | null {
+        clearHeaderStyles(header);
+        const slot = header.parentElement;
+        if (!slot) return null;
+        slot.style.removeProperty("--header-slot-height");
+
+        const headerNav = header.querySelector<HTMLElement>(".header-nav");
+        const banner = header.querySelector<HTMLElement>(".banner");
+        const siteNav = header.querySelector<HTMLElement>(".site-nav");
+
+        if (!headerNav || !banner || !siteNav) return null;
+
+        // Measure the expanded footprint, including its bottom spacing, once.
+        // Only the contents animate; the following page content never reflows.
+        slot.style.setProperty(
+            "--header-slot-height",
+            `${slot.getBoundingClientRect().height}px`,
+        );
+
+        return {
+            header,
+            expandedWidth: header.getBoundingClientRect().width,
+            expandedNavHeight: headerNav.getBoundingClientRect().height,
+            expandedBannerWidth: banner.getBoundingClientRect().width,
+            expandedSiteNavWidth: siteNav.getBoundingClientRect().width,
+            rootFontSize: Number.parseFloat(
+                getComputedStyle(document.documentElement).fontSize,
+            ),
+        };
+    }
+
+    function updateHeaderState() {
+        const header = document.querySelector<HTMLElement>(".site-header");
+        if (!header) return;
+
+        updateScrollVisibility(header.parentElement, window.scrollY);
+        updateFooterVisibility(header.parentElement, window.scrollY);
+
+        if (!desktopHeaderQuery.matches) {
+            clearHeaderStyles(header);
+            header.parentElement?.style.removeProperty("--header-slot-height");
+            headerMetrics = null;
+            return;
+        }
+
+        if (!headerMetrics || headerMetrics.header !== header) {
+            headerMetrics = measureHeader(header);
+        }
+
+        if (!headerMetrics) return;
+
+        const {
+            expandedWidth,
+            expandedNavHeight,
+            expandedBannerWidth,
+            expandedSiteNavWidth,
+            rootFontSize,
+        } = headerMetrics;
+        const rawProgress = Math.min(
+            Math.max(window.scrollY / HEADER_SCROLL_DISTANCE, 0),
+            1,
+        );
+        const progress = rawProgress;
+        const viewportWidth = document.documentElement.clientWidth;
+        const compactLogoWidth = Math.min(
+            Math.max(9 * rootFontSize, viewportWidth * 0.22),
+            12 * rootFontSize,
+        );
+        const compactSiteNavWidth = Math.max(
+            expandedWidth - compactLogoWidth - 7.5 * rootFontSize,
+            0,
+        );
+        const compactNavGap = Math.min(
+            Math.max(0.75 * rootFontSize, viewportWidth * 0.02),
+            1.5 * rootFontSize,
+        );
+
+        const values: Record<string, string> = {
+            "--header-surface-weight": `${lerp(0, 98, progress)}%`,
+            "--theme-top": `${lerp(0, 0.85 * rootFontSize, progress)}px`,
+            "--header-gap": `${lerp(rootFontSize, 0, progress)}px`,
+            "--header-nav-height": `${lerp(expandedNavHeight, 3 * rootFontSize, progress)}px`,
+            "--header-nav-y": `${lerp(0, 0.5 * rootFontSize, progress)}px`,
+            "--banner-width": `${lerp(expandedBannerWidth, compactLogoWidth, progress)}px`,
+            "--logo-height": `${lerp(55, 36, progress)}px`,
+            "--site-nav-width": `${lerp(expandedSiteNavWidth, compactSiteNavWidth, progress)}px`,
+            "--site-nav-margin": `${lerp(rootFontSize, 0, progress)}px`,
+            "--site-nav-padding": `${lerp(rootFontSize, 0, progress)}px`,
+            "--site-nav-x": `${lerp(0, compactLogoWidth + 1.5 * rootFontSize, progress)}px`,
+            "--site-nav-y": `${lerp(0, -36, progress)}px`,
+            "--site-nav-gap": `${lerp(1.5 * rootFontSize, compactNavGap, progress)}px`,
+            "--site-nav-font-size": `${lerp(1.05 * rootFontSize, 0.95 * rootFontSize, progress)}px`,
+            "--divider-margin-top": `${lerp(0.2 * rootFontSize, 0.45 * rootFontSize, progress)}px`,
+            "--divider-margin-bottom": `${lerp(2 * rootFontSize, 0, progress)}px`,
+            "--divider-inner-margin-bottom": `${lerp(rootFontSize, 0, progress)}px`,
+            "--divider-y": `${lerp(0, -0.1 * rootFontSize, progress)}px`,
+        };
+
+        Object.entries(values).forEach(([property, value]) => {
+            header.style.setProperty(property, value);
+        });
+    }
+
+    function updateScrollVisibility(
+        slot: HTMLElement | null,
+        currentScrollY: number,
+    ) {
+        if (!slot) return;
+
+        const delta = currentScrollY - lastScrollY;
+        lastScrollY = currentScrollY;
+
+        if (
+            !desktopHeaderQuery.matches ||
+            currentScrollY <= HEADER_SCROLL_DISTANCE
+        ) {
+            slot.classList.remove("is-scroll-hidden");
+            scrollDirection = 0;
+            directionDistance = 0;
+            return;
+        }
+
+        if (Math.abs(delta) < 0.5) return;
+
+        const nextDirection = Math.sign(delta);
+        if (nextDirection !== scrollDirection) {
+            scrollDirection = nextDirection;
+            directionDistance = 0;
+        }
+
+        directionDistance += Math.abs(delta);
+        if (directionDistance < DIRECTION_TRIGGER_DISTANCE) return;
+
+        slot.classList.toggle("is-scroll-hidden", scrollDirection > 0);
+        directionDistance = 0;
+    }
+
+    function updateFooterVisibility(
+        slot: HTMLElement | null,
+        currentScrollY: number,
+    ) {
+        if (!slot) return;
+
+        const headerIsFullyExpanded = currentScrollY >= HEADER_SCROLL_DISTANCE;
+
+        slot.classList.toggle(
+            "is-footer-hidden",
+            desktopHeaderQuery.matches &&
+                headerIsFullyExpanded &&
+                isFooterDividerVisible,
+        );
+    }
+
+    function requestHeaderUpdate() {
+        if (headerFrame) return;
+
+        headerFrame = window.requestAnimationFrame(() => {
+            headerFrame = 0;
+            updateHeaderState();
+        });
+    }
+
+    function bindFooterDividerObserver() {
+        footerDividerObserver?.disconnect();
+        footerDividerObserver = null;
+        isFooterDividerVisible = false;
+
+        const slot = document.querySelector<HTMLElement>(".header-slot");
+        const footerDivider = document.querySelector<HTMLElement>(
+            "[data-footer-divider]",
+        );
+
+        if (!slot) return;
+
+        slot.classList.remove("is-footer-hidden");
+
+        if (!desktopHeaderQuery.matches || !footerDivider) return;
+
+        footerDividerObserver = new IntersectionObserver(([entry]) => {
+            isFooterDividerVisible = entry.isIntersecting;
+            updateFooterVisibility(slot, window.scrollY);
+        });
+        footerDividerObserver.observe(footerDivider);
+    }
+
+    window.addEventListener("scroll", requestHeaderUpdate, { passive: true });
+    window.addEventListener("resize", () => {
+        headerMetrics = null;
+        requestHeaderUpdate();
+    });
+    desktopHeaderQuery.addEventListener("change", () => {
+        requestHeaderUpdate();
+        bindFooterDividerObserver();
+    });
+    document.addEventListener("astro:page-load", () => {
+        headerMetrics = null;
+        lastScrollY = window.scrollY;
+        scrollDirection = 0;
+        directionDistance = 0;
+        isFooterDividerVisible = false;
+        document
+            .querySelector<HTMLElement>(".header-slot")
+            ?.classList.remove("is-scroll-hidden");
+        updateHeaderState();
+        bindFooterDividerObserver();
+    });
+    document.fonts.ready.then(() => {
+        headerMetrics = null;
+        requestHeaderUpdate();
+    });
+    updateHeaderState();
+    bindFooterDividerObserver();
+</script>
diff --git a/src/components/LatestComments.astro b/src/components/LatestComments.astro
index 4ad0a7b..04e206f 100644
--- a/src/components/LatestComments.astro
+++ b/src/components/LatestComments.astro
@@ -2,7 +2,7 @@
 const { lang = "zh" } = Astro.props;
 const host = import.meta.env.PUBLIC_REMARK42_HOST;
 const siteId = import.meta.env.PUBLIC_REMARK42_SITE_ID;
-const max = 10;
+const max = 5;
 const heading = lang === "zh" ? "最新评论" : "Latest comments";
 ---
 
@@ -65,6 +65,13 @@ const heading = lang === "zh" ? "最新评论" : "Latest comments";
         }
     }
 
+    function getDiscussionUrl(url, lang) {
+        const localizedUrl = rewritePostUrl(url, lang);
+        if (!localizedUrl || localizedUrl === "#") return "#";
+
+        return `${localizedUrl.split("#")[0]}#comments`;
+    }
+
     function getAvatar(item) {
         return (
             item?.user?.picture || item?.user?.photo || item?.user?.avatar || ""
@@ -75,6 +82,22 @@ const heading = lang === "zh" ? "最新评论" : "Latest comments";
         return item?.user?.name || (lang === "zh" ? "匿名用户" : "Anonymous");
     }
 
+    function getCommentPreview(html, lang) {
+        const template = document.createElement("template");
+        template.innerHTML = String(html || "");
+
+        const text = (template.content.textContent || "")
+            .replace(/\s+/g, " ")
+            .trim();
+
+        if (text) return escapeHtml(text);
+        if (template.content.querySelector("img")) {
+            return lang === "zh" ? "[图片]" : "[Image]";
+        }
+
+        return lang === "zh" ? "[无文字内容]" : "[No text content]";
+    }
+
     function normalizePath(url) {
         if (!url) return "";
 
@@ -207,10 +230,14 @@ const heading = lang === "zh" ? "最新评论" : "Latest comments";
                     item?.title ||
                         (lang === "zh" ? "未命名文章" : "Untitled post"),
                 );
-                const href = rewritePostUrl(item?.locator?.url || "", lang);
+                const href = escapeHtml(
+                    rewritePostUrl(item?.locator?.url || "", lang),
+                );
+                const discussionHref = escapeHtml(
+                    getDiscussionUrl(item?.locator?.url || "", lang),
+                );
 
-                // Remark42 返回的 text 是处理后的 HTML，适合直接渲染
-                const html = item?.text || "";
+                const preview = getCommentPreview(item?.text, lang);
                 const time = formatTime(item?.time, lang);
 
                 const replyTo = escapeHtml(item?.replyToName || "");
@@ -227,7 +254,7 @@ const heading = lang === "zh" ? "最新评论" : "Latest comments";
                 return `
           <article class="comment-card">
             <div class="comment-card-body">
-              <div class="comment-card-info">
+              <header class="comment-card-info">
                 <div class="comment-avatar">
                   ${avatarHtml}
                 </div>
@@ -238,19 +265,37 @@ const heading = lang === "zh" ? "最新评论" : "Latest comments";
                     ${time ? `<span class="comment-time">${escapeHtml(time)}</span>` : ""}
                   </div>
                 </div>
-              </div>
+              </header>
 
-              <div class="comment-card-title">
-                <a class="comment-title-link" href="${href}">${title}</a>
-              </div>
+              <div class="comment-card-text">${preview}</div>
 
-              <div class="comment-card-text">${html}</div>
+              <footer class="comment-source">
+                <div class="comment-source-context">
+                  <span>${lang === "zh" ? "评论于" : "On"}</span>
+                  <a class="comment-title-link" href="${href}">${title}</a>
+                </div>
+                <a class="comment-discussion-link" href="${discussionHref}">${
+                    lang === "zh" ? "查看完整讨论" : "View discussion"
+                }</a>
+              </footer>
             </div>
           </article>
         `;
             })
             .join("");
 
+        requestAnimationFrame(() => {
+            list.querySelectorAll(".comment-card").forEach((card) => {
+                const preview = card.querySelector(".comment-card-text");
+                if (!preview) return;
+
+                card.classList.toggle(
+                    "is-truncated",
+                    preview.scrollHeight > preview.clientHeight + 1,
+                );
+            });
+        });
+
         loading.style.display = "none";
     }
 
@@ -259,7 +304,7 @@ const heading = lang === "zh" ? "最新评论" : "Latest comments";
 
         const host = section.dataset.host;
         const siteId = section.dataset.siteId;
-        const max = section.dataset.max || "10";
+        const max = section.dataset.max || "5";
         const lang = section.dataset.lang || "zh";
 
         const list = section.querySelector(".latest-comments-list");
diff --git a/src/components/Navigation.astro b/src/components/Navigation.astro
index 1c11f2b..b9e66bb 100644
--- a/src/components/Navigation.astro
+++ b/src/components/Navigation.astro
@@ -3,25 +3,48 @@ import { getLangFromUrl, getTranslations } from "@/i18n";
 
 const lang = getLangFromUrl(Astro.url);
 const t = getTranslations(lang);
+const pathname = Astro.url.pathname;
+const items = [
+    { href: `/${lang}/`, label: t.nav.home, exact: true },
+    { href: `/${lang}/about/`, label: t.nav.about },
+    { href: `/${lang}/tags/`, label: t.nav.tags },
+    { href: `/${lang}/timeline/`, label: t.nav.timeline },
+    { href: `/${lang}/friends/`, label: t.nav.friends },
+];
+
+const isCurrent = (href: string, exact = false) =>
+    exact
+        ? pathname === href || pathname === href.slice(0, -1)
+        : pathname.startsWith(href);
 ---
 
 <nav class="site-nav" aria-label="Site navigation">
     <div class="site-nav-desktop">
-        <a href={`/${lang}/`}>{t.nav.home}</a>
-        <a href={`/${lang}/about/`}>{t.nav.about}</a>
-        <a href={`/${lang}/tags/`}>{t.nav.tags}</a>
-        <a href={`/${lang}/timeline/`}>{t.nav.timeline}</a>
-        <a href={`/${lang}/friends/`}>{t.nav.friends}</a>
+        {
+            items.map(({ href, label, exact }) => (
+                <a
+                    href={href}
+                    aria-current={isCurrent(href, exact) ? "page" : undefined}
+                >
+                    {label}
+                </a>
+            ))
+        }
     </div>
 
     <details class="site-nav-mobile">
         <summary>☰ {lang === "zh" ? "导航栏" : "Menu"}</summary>
         <div class="dropdown-menu">
-            <a href={`/${lang}/`}>{t.nav.home}</a>
-            <a href={`/${lang}/about/`}>{t.nav.about}</a>
-            <a href={`/${lang}/tags/`}>{t.nav.tags}</a>
-            <a href={`/${lang}/timeline/`}>{t.nav.timeline}</a>
-            <a href={`/${lang}/friends/`}>{t.nav.friends}</a>
+            {
+                items.map(({ href, label, exact }) => (
+                    <a
+                        href={href}
+                        aria-current={isCurrent(href, exact) ? "page" : undefined}
+                    >
+                        {label}
+                    </a>
+                ))
+            }
         </div>
     </details>
 </nav>
@@ -54,22 +77,45 @@ const t = getTranslations(lang);
     }
 
     .site-nav a {
-        color: black;
-        text-decoration: underline;
-        font-weight: 700;
-        font-size: 1.2rem;
+        position: relative;
+        color: var(--text-color);
+        text-decoration: none;
+        font-weight: 500;
+        font-size: 1.05rem;
+        line-height: 1.4;
     }
 
-    .site-nav a:hover {
-        text-decoration: underline;
+    .site-nav-desktop a::after {
+        content: "";
+        position: absolute;
+        left: 50%;
+        bottom: -0.28rem;
+        width: 100%;
+        height: 2px;
+        background: var(--deep-red);
+        transform: translateX(-50%) scaleX(0);
+        transform-origin: center;
+        transition: transform 0.18s ease;
+    }
+
+    .site-nav-desktop a:hover::after,
+    .site-nav-desktop a:focus-visible::after,
+    .site-nav-desktop a[aria-current="page"]::after {
+        transform: translateX(-50%) scaleX(1);
+    }
+
+    .site-nav a:focus-visible {
+        outline: 2px solid var(--url-color);
+        outline-offset: 0.35rem;
+        text-decoration: none;
     }
 
     :global(.dark) .site-nav a {
-        color: white;
+        color: var(--text-color-dark);
     }
 
     :global(.dark) .site-nav a:hover {
-        color: #ddd;
+        color: #fff;
     }
 
     .site-nav-mobile {
@@ -81,10 +127,10 @@ const t = getTranslations(lang);
         list-style: none;
         cursor: pointer;
         display: inline-block;
-        font-weight: 700;
-        font-size: 1.1rem;
-        color: black;
-        text-decoration: underline;
+        font-weight: 500;
+        font-size: 1rem;
+        color: var(--text-color);
+        text-decoration: none;
         user-select: none;
     }
 
@@ -121,6 +167,11 @@ const t = getTranslations(lang);
         text-decoration: underline;
     }
 
+    .dropdown-menu a[aria-current="page"] {
+        color: var(--deep-red);
+        font-weight: 600;
+    }
+
     :global(.dark) .dropdown-menu {
         background: #1f1b18;
         border-color: #c8a98a;
diff --git a/src/components/Posts/PostItem.astro b/src/components/Posts/PostItem.astro
index f81c360..a105f44 100644
--- a/src/components/Posts/PostItem.astro
+++ b/src/components/Posts/PostItem.astro
@@ -1,6 +1,7 @@
 ---
 import "@/styles/global.css";
 import Remark42Counter from "@/components/Remark42Counter.astro";
+import TagLink from "@/components/TagLink.astro";
 import { getLangFromUrl } from "@/i18n";
 
 const lang = getLangFromUrl(Astro.url);
@@ -22,9 +23,7 @@ const tags = data.tags;
       <div class="tags" transition:name={`post-tags-${data.postId}`}>
         {
           tags.map((tag: string) => (
-            <p class="tag">
-              <a href={`/${lang}/tags/${tag}`}>{tag}</a>
-            </p>
+            <TagLink tag={tag} lang={lang} />
           ))
         }
       </div>
@@ -51,81 +50,31 @@ const tags = data.tags;
   </div>
 </li>
 
-<div class="section-divider"></div>
-
 <style>
   .tags {
     display: flex;
     flex-wrap: wrap;
-    gap: 0.4rem;
-    margin-top: 0.5rem;
-    margin-bottom: 0.5rem;
-  }
-
-  .tag {
-    font-family:
-      "Noto Sans SC",
-      system-ui,
-      -apple-system,
-      BlinkMacSystemFont,
-      "Segoe UI",
-      Roboto,
-      Oxygen,
-      Ubuntu,
-      Cantarell,
-      "Open Sans",
-      "Helvetica Neue",
-      sans-serif;
-
-    margin: 0;
-    padding: 0.22em 0.65em;
-    font-size: 1rem;
-    line-height: 1.2;
-    border: 1px dashed #8b6b4a;
-    border-radius: 0;
-    background-color: transparent;
-  }
-
-  .tag a {
-    color: #6f4e37;
-    text-decoration: none;
-    font-size: 0.8rem;
-    font-weight: 500;
-  }
-
-  .tag a:hover {
-    text-decoration: underline;
-  }
-
-  :global(.dark) .tag {
-    border-color: #d8c7a1;
-  }
-
-  :global(.dark) .tag a {
-    color: #e6d8b8;
-  }
-
-  :global(.dark) .tag {
-    border-color: #d8c7a1;
-  }
-
-  :global(.dark) .tag a {
-    color: #e6d8b8;
+    gap: 0.25rem 0.9rem;
+    margin-top: 0.75rem;
+    min-width: 0;
+    font-size: 0.85rem;
   }
 
   .post-card {
     list-style: none;
-    margin: 0 0 1rem 0;
-    padding-left: 0;
-    padding-bottom: 0.9rem;
-    padding-top: 0.9rem;
+    margin: 0;
+    padding: 0;
+  }
+
+  .post-card + .post-card {
+    margin-top: 2rem;
   }
 
   .post-link {
     display: flex;
     justify-content: space-between;
-    align-items: stretch;
-    gap: 1rem;
+    align-items: flex-start;
+    gap: 1.5rem;
     width: 100%;
     text-decoration: none;
   }
@@ -136,14 +85,13 @@ const tags = data.tags;
     max-width: 40rem;
     display: flex;
     flex-direction: column;
-    justify-content: space-between;
     line-height: 1.6;
-    min-height: calc(1.6em * 4);
   }
 
   .post-title-link {
     text-decoration: none;
     display: block;
+    min-width: 0;
   }
 
   .post-title {
@@ -163,7 +111,8 @@ const tags = data.tags;
       sans-serif;
     font-weight: 500;
     font-size: 1.34rem;
-    line-height: 1.6;
+    line-height: 1.5;
+    overflow-wrap: anywhere;
     display: -webkit-box;
     -webkit-line-clamp: 3;
     -webkit-box-orient: vertical;
@@ -171,11 +120,13 @@ const tags = data.tags;
   }
 
   .post-description {
-    color: black;
+    margin-top: 0.5rem;
+    color: #4e5e6e;
     text-decoration: none;
     font-weight: 400;
-    font-size: 0.92rem;
-    /* font-style: italic; */
+    font-size: 0.95rem;
+    line-height: 1.7;
+    overflow-wrap: anywhere;
   }
 
   .post-meta-row {
@@ -183,11 +134,13 @@ const tags = data.tags;
     align-items: center;
     gap: 0.9rem;
     flex-wrap: wrap;
+    margin-top: 0.75rem;
+    font-size: 0.82rem;
+    font-weight: 400;
+    color: #66717c;
   }
 
   .post-date {
-    color: gray;
-    font-size: 0.95rem;
     white-space: nowrap;
     line-height: 1.6;
   }
@@ -196,8 +149,6 @@ const tags = data.tags;
     display: inline-flex;
     align-items: center;
     gap: 0.7rem;
-    color: #6f8090;
-    font-size: 0.92rem;
     line-height: 1.6;
     white-space: nowrap;
   }
@@ -208,22 +159,28 @@ const tags = data.tags;
     gap: 0.2rem;
   }
 
+  .post-image-link {
+    display: block;
+    flex: 0 0 11rem;
+    width: 11rem;
+    aspect-ratio: 16 / 10;
+    overflow: hidden;
+  }
+
   .post-image {
-    width: calc((1.6em * 4) * 16 / 10);
-    height: calc(1.6em * 4);
+    width: 100%;
+    height: 100%;
     aspect-ratio: 16 / 10;
     object-fit: cover;
     object-position: center;
-    border: 1.5px #94a0ab dashed;
-    flex-shrink: 0;
     display: block;
   }
 
   :global(.dark) .post-description {
-    color: #e6e6e6;
+    color: #c4ccd5;
   }
 
-  :global(.dark) .post-stats {
+  :global(.dark) .post-meta-row {
     color: #aab7c4;
   }
 
@@ -264,7 +221,6 @@ const tags = data.tags;
     }
 
     .post-image {
-      /* border: none; */
       grid-area: image;
       width: 100%;
       height: calc(145px * 10 / 16);
@@ -274,8 +230,9 @@ const tags = data.tags;
     .post-image-link {
       grid-area: image;
       align-self: center;
-      display: block;
       width: 145px;
+      aspect-ratio: auto;
+      overflow: visible;
       text-decoration: none;
     }
 
diff --git a/src/components/Posts/PostList.astro b/src/components/Posts/PostList.astro
index 43cd00f..85bdada 100644
--- a/src/components/Posts/PostList.astro
+++ b/src/components/Posts/PostList.astro
@@ -59,15 +59,15 @@ const latestPosts = filteredPosts.slice(0, 7);
   }
 
   .more-link-wrap {
-    margin-top: 1rem;
+    margin-top: 2rem;
     text-align: right;
   }
 
   .more-link {
     color: #6f8090;
-    font-weight: 700;
+    font-weight: 400;
     text-decoration: none;
-    font-size: 1.14rem;
+    font-size: 0.9rem;
   }
 
   .more-link:hover {
diff --git a/src/components/Posts/PostMenu.astro b/src/components/Posts/PostMenu.astro
index 12ffb62..1402303 100644
--- a/src/components/Posts/PostMenu.astro
+++ b/src/components/Posts/PostMenu.astro
@@ -83,6 +83,9 @@ const tocHeadings = headings.filter((h) => h.depth === 2 || h.depth === 3);
 <style>
     .post-menu {
         box-sizing: border-box;
+        min-width: 0;
+        overflow-wrap: anywhere;
+        word-break: break-word;
     }
 
     .post-menu-title {
@@ -125,6 +128,7 @@ const tocHeadings = headings.filter((h) => h.depth === 2 || h.depth === 3);
 
     .post-menu-item {
         position: relative;
+        min-width: 0;
         margin: 0.42rem 0;
         line-height: 1.45;
     }
@@ -136,27 +140,41 @@ const tocHeadings = headings.filter((h) => h.depth === 2 || h.depth === 3);
     }
 
     .post-menu a {
+        display: block;
+        min-width: 0;
+        max-width: 100%;
+        padding: 0.08rem 0.35rem 0.08rem 0.55rem;
+        border-left: 2px solid transparent;
         color: inherit;
         text-decoration: none;
+        transition:
+            border-color 0.16s ease,
+            color 0.16s ease;
     }
 
     .post-menu a:hover {
         text-decoration: underline;
     }
 
+    .post-menu a.is-current {
+        border-left-color: var(--deep-red);
+        color: var(--url-color);
+        font-weight: 600;
+    }
+
     .post-menu-mobile-toggle {
         display: none;
     }
 
     @media (min-width: 1200px) {
         .post-menu {
-            --content-width: 90ch;
+            --content-width: var(--page-content-width);
             --menu-width: clamp(
                 140px,
                 calc((100vw - 1200px) * 0.42 + 140px),
                 260px
             );
-            --menu-gap: 0rem;
+            --menu-gap: clamp(1.5rem, 2vw, 2rem);
 
             position: fixed;
             top: 8.5rem;
@@ -168,7 +186,9 @@ const tocHeadings = headings.filter((h) => h.depth === 2 || h.depth === 3);
             );
 
             max-height: calc(100vh - 10rem);
-            overflow: auto;
+            overflow-x: hidden;
+            overflow-y: auto;
+            overscroll-behavior: contain;
             padding: 0.2rem 0.2rem 0.2rem 0;
             opacity: 0.9;
         }
@@ -187,8 +207,11 @@ const tocHeadings = headings.filter((h) => h.depth === 2 || h.depth === 3);
             padding: 0.6rem 0.75rem;
             border: 1.5px solid var(--deep-blue);
             border-radius: 999px;
-            background: rgba(255, 255, 255, 0.92);
-            backdrop-filter: blur(6px);
+            background: color-mix(
+                in srgb,
+                var(--background-color) 94%,
+                transparent
+            );
             color: inherit;
             font-size: 0.85rem;
             cursor: pointer;
@@ -232,11 +255,16 @@ const tocHeadings = headings.filter((h) => h.depth === 2 || h.depth === 3);
             z-index: 29;
             width: min(88vw, 24rem);
             max-height: min(65vh, 32rem);
-            overflow: auto;
+            overflow-x: hidden;
+            overflow-y: auto;
+            overscroll-behavior: contain;
             padding: 0.9rem 1rem;
             border: 1.5px solid var(--deep-blue);
-            background: rgba(255, 255, 255, 0.96);
-            backdrop-filter: blur(8px);
+            background: color-mix(
+                in srgb,
+                var(--background-color) 97%,
+                transparent
+            );
             box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
         }
 
@@ -329,8 +357,6 @@ const tocHeadings = headings.filter((h) => h.depth === 2 || h.depth === 3);
             };
 
             const updateCurrentHeading = () => {
-                if (window.innerWidth >= 1200) return;
-
                 headingItems = getHeadingElements();
 
                 let current = null;
@@ -347,10 +373,16 @@ const tocHeadings = headings.filter((h) => h.depth === 2 || h.depth === 3);
 
                 preview.textContent = current ? current.text : defaultText;
 
-                headingLinks.forEach((link) =>
-                    link.classList.remove("is-current"),
-                );
-                if (current) current.link.classList.add("is-current");
+                headingLinks.forEach((link) => {
+                    const isCurrent = link === current?.link;
+                    link.classList.toggle("is-current", isCurrent);
+
+                    if (isCurrent) {
+                        link.setAttribute("aria-current", "location");
+                    } else {
+                        link.removeAttribute("aria-current");
+                    }
+                });
             };
 
             const toggleMenu = () => {
@@ -377,7 +409,11 @@ const tocHeadings = headings.filter((h) => h.depth === 2 || h.depth === 3);
                 e.preventDefault();
 
                 el.scrollIntoView({
-                    behavior: "smooth",
+                    behavior: window.matchMedia(
+                        "(prefers-reduced-motion: reduce)",
+                    ).matches
+                        ? "auto"
+                        : "smooth",
                     block: "start",
                 });
 
diff --git a/src/components/TagLink.astro b/src/components/TagLink.astro
new file mode 100644
index 0000000..767ad33
--- /dev/null
+++ b/src/components/TagLink.astro
@@ -0,0 +1,48 @@
+---
+interface Props {
+  tag: string;
+  lang: string;
+}
+
+const { tag, lang } = Astro.props;
+---
+
+<a class="tag-link" href={`/${lang}/tags/${encodeURIComponent(tag)}/`}>#{tag}</a>
+
+<style>
+  .tag-link {
+    display: inline-block;
+    max-width: 100%;
+    padding-block: 0.2rem;
+    font-family: "Noto Sans SC", system-ui, sans-serif;
+    font-size: inherit;
+    font-weight: 400;
+    line-height: 1.6;
+    color: #536493;
+    overflow-wrap: anywhere;
+    text-decoration-line: underline;
+    text-decoration-style: dashed;
+    text-decoration-thickness: 1px;
+    text-underline-offset: 0.25em;
+  }
+
+  .tag-link:hover,
+  .tag-link:focus-visible {
+    color: var(--text-color);
+    text-decoration: underline dashed 1px;
+  }
+
+  .tag-link:focus-visible {
+    outline: 2px solid currentColor;
+    outline-offset: 3px;
+  }
+
+  :global(html.dark) .tag-link {
+    color: #aabbd8;
+  }
+
+  :global(html.dark) .tag-link:hover,
+  :global(html.dark) .tag-link:focus-visible {
+    color: #d9e5f6;
+  }
+</style>
diff --git a/src/layouts/BaseLayout.astro b/src/layouts/BaseLayout.astro
index 08e12e8..fba5da0 100644
--- a/src/layouts/BaseLayout.astro
+++ b/src/layouts/BaseLayout.astro
@@ -8,6 +8,7 @@ import "katex/dist/katex.min.css";
 
 const lang = getLangFromUrl(Astro.url);
 const htmlLang = lang === "zh" ? "zh-CN" : "en-US";
+const isHomePage = new RegExp(`^/${lang}/?$`).test(Astro.url.pathname);
 import SEO from "@/components/SEO.astro";
 import FloatingActions from "@/components/FloatingActions.astro";
 import Spinner from "@/components/Spinner.astro";
@@ -44,6 +45,33 @@ const {
 	<FloatingActions />
 	<script is:inline>
 		function addCodeCopyButtons() {
+			const languageNames = {
+				js: "JavaScript",
+				javascript: "JavaScript",
+				ts: "TypeScript",
+				typescript: "TypeScript",
+				jsx: "JSX",
+				tsx: "TSX",
+				sh: "Shell",
+				bash: "Shell",
+				zsh: "Shell",
+				py: "Python",
+				python: "Python",
+				yml: "YAML",
+				yaml: "YAML",
+				json: "JSON",
+				astro: "Astro",
+				html: "HTML",
+				css: "CSS",
+				scss: "SCSS",
+				sql: "SQL",
+				rust: "Rust",
+				go: "Go",
+				java: "Java",
+				cpp: "C++",
+				csharp: "C#",
+			};
+
 			document.querySelectorAll("pre").forEach((pre) => {
 				const code = pre.querySelector("code");
 				if (!code) return;
@@ -62,6 +90,29 @@ const {
 				pre.parentNode?.insertBefore(wrapper, pre);
 				wrapper.appendChild(pre);
 
+				const toolbar = document.createElement("div");
+				toolbar.className = "code-block-toolbar";
+				wrapper.insertBefore(toolbar, pre);
+
+				const languageClass = [...code.classList, ...pre.classList].find((name) =>
+					name.startsWith("language-"),
+				);
+				const language = (
+					pre.dataset.language ||
+					code.dataset.language ||
+					languageClass?.slice("language-".length) ||
+					""
+				).trim().toLowerCase();
+
+				if (language) {
+					const label = document.createElement("span");
+					label.className = "code-language-label";
+					label.textContent =
+						languageNames[language.toLowerCase()] ||
+						language.toUpperCase();
+					toolbar.appendChild(label);
+				}
+
 				/* 创建复制按钮 */
 				const button = document.createElement("button");
 				button.className = "code-copy-button";
@@ -76,13 +127,15 @@ const {
 				icon.setAttribute("aria-hidden", "true");
 
 				button.appendChild(icon);
-				wrapper.appendChild(button);
+				toolbar.appendChild(button);
 
 				button.addEventListener("click", async () => {
 					const text = code.textContent ?? "";
+					let copied = false;
 
 					try {
 						await navigator.clipboard.writeText(text);
+						copied = true;
 					} catch {
 						const textarea = document.createElement("textarea");
 						textarea.value = text;
@@ -90,16 +143,25 @@ const {
 						textarea.style.opacity = "0";
 						textarea.style.pointerEvents = "none";
 
-						document.body.appendChild(textarea);
-						textarea.select();
-						document.execCommand("copy");
-						textarea.remove();
+						try {
+							document.body.appendChild(textarea);
+							textarea.select();
+							copied = document.execCommand("copy");
+						} catch {
+							copied = false;
+						} finally {
+							textarea.remove();
+							button.focus({ preventScroll: true });
+						}
 					}
 
-					icon.src = "/images/correct-signal-svgrepo-com.svg";
-					button.setAttribute("aria-label", "已复制");
-					button.title = "已复制";
-					button.classList.add("copied");
+					icon.src = copied
+						? "/images/correct-signal-svgrepo-com.svg"
+						: "/images/copy-svgrepo-com.svg";
+					const message = copied ? "已复制" : "复制失败，请手动选择代码复制";
+					button.setAttribute("aria-label", message);
+					button.title = message;
+					button.classList.toggle("copied", copied);
 
 					window.setTimeout(() => {
 						icon.src = "/images/copy-svgrepo-com.svg";
@@ -115,7 +177,7 @@ const {
 		document.addEventListener("astro:page-load", addCodeCopyButtons);
 	</script>
 
-	<body>
+	<body class:list={{ "is-home": isHomePage }}>
 		<Header />
 		<Spinner />
 		<main
@@ -129,10 +191,15 @@ const {
 </html>
 
 <style>
-	html,
+	html {
+		margin: 0;
+		width: 100%;
+		min-height: 100%;
+	}
+
 	body {
 		margin: 0;
 		width: 100%;
-		height: 100%;
+		min-height: 100%;
 	}
 </style>
diff --git a/src/layouts/MarkdownPostLayout.astro b/src/layouts/MarkdownPostLayout.astro
index c689eb1..2ab2536 100644
--- a/src/layouts/MarkdownPostLayout.astro
+++ b/src/layouts/MarkdownPostLayout.astro
@@ -2,6 +2,7 @@
 import BaseLayout from "./BaseLayout.astro";
 import Remark42Embed from "@/components/Remark42Embed.astro";
 import PostNav from "@/components/Posts/PostNav.astro";
+import TagLink from "@/components/TagLink.astro";
 import PostMenu from "@/components/Posts/PostMenu.astro";
 import Dialog from "@/components/Posts/Dialog.astro";
 import { fade } from "astro:transitions";
@@ -11,6 +12,14 @@ import "@/styles/global.css";
 const { post, frontmatter, lang, slug, postId, headings } = Astro.props;
 const comments = lang === "zh" ? "评论区" : "comments";
 const t = getTranslations(lang);
+const publishedDate = new Intl.DateTimeFormat(
+  lang === "zh" ? "zh-CN" : "en-US",
+  {
+    year: "numeric",
+    month: "long",
+    day: "numeric",
+  },
+).format(frontmatter.pubDate);
 ---
 
 <BaseLayout
@@ -18,78 +27,87 @@ const t = getTranslations(lang);
   description={frontmatter.description}
   image={frontmatter.image?.url}
 >
-  <div id="reading-progress" aria-hidden="true"></div>
-  <a
-    href="/"
-    class="back-button"
-    id="back-button"
-    aria-label="Go back"
-    title="返回"
-  >
-    <svg
-      viewBox="0 0 24 24"
-      width="20"
-      height="20"
-      fill="none"
-      stroke="currentColor"
-      stroke-width="2.2"
-      stroke-linecap="round"
-      stroke-linejoin="round"
-      aria-hidden="true"
+  <div class="post-layout page-shell">
+    <div id="reading-progress" aria-hidden="true"></div>
+    <a
+      href="/"
+      class="back-button"
+      id="back-button"
+      aria-label="Go back"
+      title="返回"
     >
-      <path d="M15 18l-6-6 6-6"></path>
-    </svg>
-  </a>
+      <svg
+        viewBox="0 0 24 24"
+        width="20"
+        height="20"
+        fill="none"
+        stroke="currentColor"
+        stroke-width="2.2"
+        stroke-linecap="round"
+        stroke-linejoin="round"
+        aria-hidden="true"
+      >
+        <path d="M15 18l-6-6 6-6"></path>
+      </svg>
+    </a>
 
-  <PostMenu headings={headings} />
+    <PostMenu headings={headings} />
 
-  <article class="post-article">
-    <div class="post-header">
-      <div class="post-meta">
-        <h1 class="post-title" transition:name={`post-title-${postId}`}>
-          {frontmatter.title}
-        </h1>
-        <p class="description">
-          <em>{frontmatter.description}</em>
-        </p>
-        <p class="meta-line">
-          {t.post.publishedOn}: {frontmatter.pubDate.toLocaleDateString()}
-        </p>
-        <p class="meta-line">{t.post.writtenBy}: {frontmatter.author}</p>
+    <article class="post-article">
+      <div class="post-header">
+        <div class="post-meta">
+          <h1 class="post-title" transition:name={`post-title-${postId}`}>
+            {frontmatter.title}
+          </h1>
+          <p class="description">
+            {frontmatter.description}
+          </p>
+          <p class="post-byline">
+            <span>{t.post.writtenBy} {frontmatter.author}</span>
+            <span class="byline-separator" aria-hidden="true">·</span>
+            <time datetime={frontmatter.pubDate.toISOString()}>
+              {t.post.publishedOn} {publishedDate}
+            </time>
+          </p>
 
-        <div class="tags" transition:name={`post-tags-${postId}`}>
-          {
-            frontmatter.tags.map((tag: string) => (
-              <p class="tag">
-                <a href={`/${lang}/tags/${tag}`}>{tag}</a>
-              </p>
-            ))
-          }
+          <div class="tags" transition:name={`post-tags-${postId}`}>
+            {
+              frontmatter.tags.map((tag: string) => (
+                <TagLink tag={tag} lang={lang} />
+              ))
+            }
+          </div>
         </div>
+
+        <img
+          src={frontmatter.image.url}
+          alt={frontmatter.image.alt}
+          class="post-cover"
+          transition:name={`post-image-${postId}`}
+        />
       </div>
 
-      <img
-        src={frontmatter.image.url}
-        alt={frontmatter.image.alt}
-        class="post-cover"
-        transition:name={`post-image-${postId}`}
-      />
-    </div>
+      <div class="post-divider"></div>
 
-    <div class="post-divider"></div>
+      <div class="post-content" transition:animate={fade({ duration: "0.2s" })}>
+        <slot />
+      </div>
 
-    <div class="post-content" transition:animate={fade({ duration: "0.2s" })}>
-      <slot />
-    </div>
+      <Dialog />
 
-    <Dialog />
+      <PostNav post={post} lang={lang} />
 
-    <PostNav post={post} lang={lang} />
-
-    <h2>{comments}</h2>
-    {t.post.commentsDesc.map((line: string) => <p set:html={line} />)}
-    <Remark42Embed slug={slug} />
-  </article>
+      <section
+        id="comments"
+        class="comments-section"
+        aria-labelledby="comments-heading"
+      >
+        <h2 id="comments-heading">{comments}</h2>
+        {t.post.commentsDesc.map((line: string) => <p set:html={line} />)}
+        <Remark42Embed slug={slug} />
+      </section>
+    </article>
+  </div>
 </BaseLayout>
 
 <script
@@ -148,36 +166,68 @@ const t = getTranslations(lang);
       backButton.dataset.bound = "true";
     }
   };
-  const updateProgress = () => {
-    const doc = document.documentElement;
-    const scrollTop = window.scrollY || doc.scrollTop;
-    const scrollHeight = doc.scrollHeight - window.innerHeight;
+  const initReadingProgress = () => {
+    const readingWindow = window as typeof window & {
+      __postReadingProgressHandler?: () => void;
+    };
 
-    const progress = scrollHeight > 0 ? (scrollTop / scrollHeight) * 100 : 0;
+    if (readingWindow.__postReadingProgressHandler) {
+      window.removeEventListener(
+        "scroll",
+        readingWindow.__postReadingProgressHandler,
+      );
+      window.removeEventListener(
+        "resize",
+        readingWindow.__postReadingProgressHandler,
+      );
+    }
 
     const bar = document.getElementById("reading-progress");
-    if (bar) {
-      bar.style.width = `${Math.min(progress, 100)}%`;
-    }
+    const content = document.querySelector<HTMLElement>(".post-content");
+    if (!bar || !content) return;
+
+    const updateProgress = () => {
+      const contentTop = content.getBoundingClientRect().top + window.scrollY;
+      const readableDistance = Math.max(
+        content.scrollHeight - window.innerHeight,
+        1,
+      );
+      const progress = Math.min(
+        Math.max((window.scrollY - contentTop) / readableDistance, 0),
+        1,
+      );
+
+      bar.style.transform = `scaleX(${progress})`;
+    };
+
+    readingWindow.__postReadingProgressHandler = updateProgress;
+    window.addEventListener("scroll", updateProgress, { passive: true });
+    window.addEventListener("resize", updateProgress);
+    updateProgress();
   };
 
-  updateProgress();
-  window.addEventListener("scroll", updateProgress, { passive: true });
-  window.addEventListener("resize", updateProgress);
+  initReadingProgress();
   initFloatingActions();
+  document.addEventListener("astro:page-load", initReadingProgress);
   document.addEventListener("astro:page-load", initFloatingActions);
 </script>
 
 <style>
+  .post-layout {
+    min-width: 0;
+  }
+
   #reading-progress {
     position: fixed;
     top: 0;
     left: 0;
     z-index: 9999;
-    width: 0;
+    width: 100%;
     height: 3px;
     background: #5a89ff;
-    transition: width 0.08s linear;
+    transform: scaleX(0);
+    transform-origin: left center;
+    transition: transform 0.08s linear;
     pointer-events: none;
   }
 
@@ -192,15 +242,12 @@ const t = getTranslations(lang);
     align-items: center;
     justify-content: center;
     text-decoration: none;
-    border: #536493 1.5px solid;
-    border-top: #536493 2.5px dotted;
-    border-left: #536493 2.5px dotted;
+    border-top: #536493 1.5px dotted;
+    border-left: #536493 1.5px dotted;
     border-right: #536493 2.5px solid;
     border-bottom: #536493 2.5px solid;
-    background: rgba(255, 255, 255, 0.92);
+    background: color-mix(in srgb, var(--background-color) 94%, transparent);
     color: #222;
-    /* box-shadow: 0 4px 14px rgba(0, 0, 0, 0.16); */
-    backdrop-filter: blur(6px);
     z-index: 1000;
     visibility: hidden;
     transform: translateY(-80px);
@@ -230,10 +277,16 @@ const t = getTranslations(lang);
   }
 
   :global(.dark) .back-button {
-    background: rgba(34, 34, 34, 0.92);
+    background: color-mix(
+      in srgb,
+      var(--background-color-dark) 94%,
+      transparent
+    );
     color: #f5f5f5;
-    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.32);
-    border: #2f406d 2px solid;
+    border-top-color: #515151;
+    border-left-color: #515151;
+    border-right-color: #515151;
+    border-bottom-color: #515151;
   }
 
   @media (max-width: 640px) {
@@ -245,6 +298,9 @@ const t = getTranslations(lang);
     }
   }
   .post-content {
+    --article-muted: #596672;
+    --article-rule: rgba(83, 100, 147, 0.25);
+    --article-tint: rgba(83, 100, 147, 0.045);
     font-family:
       system-ui,
       -apple-system,
@@ -257,6 +313,130 @@ const t = getTranslations(lang);
       "Source Han Sans SC",
       sans-serif;
     font-weight: 400;
+    line-height: 1.85;
+    overflow-wrap: break-word;
+  }
+
+  .post-content :global(> :first-child) {
+    margin-top: 0;
+  }
+
+  .post-content :global(p) {
+    margin-block: 1.05em;
+  }
+
+  .post-content :global(h2) {
+    margin: 3.2rem 0 1rem;
+    font-family: "Noto Sans SC", system-ui, sans-serif;
+    font-size: clamp(1.35rem, 2vw, 1.55rem);
+    line-height: 1.4;
+    text-wrap: balance;
+  }
+
+  .post-content :global(h3) {
+    margin: 2.25rem 0 0.8rem;
+    font-family: "Noto Sans SC", system-ui, sans-serif;
+    font-size: clamp(1.12rem, 1.6vw, 1.28rem);
+    line-height: 1.45;
+    text-wrap: balance;
+  }
+
+  .post-content :global(h4) {
+    margin: 1.8rem 0 0.65rem;
+    font-family: "Noto Sans SC", system-ui, sans-serif;
+    line-height: 1.5;
+    font-size: 1.05em;
+  }
+
+  .post-content :global(:is(h2, h3, h4) + :is(h3, h4, p, ul, ol)) {
+    margin-top: 0.7rem;
+  }
+
+  .post-content :global(ul),
+  .post-content :global(ol) {
+    margin-block: 1.1em;
+    padding-inline-start: 1.6em;
+  }
+
+  .post-content :global(li::marker) {
+    color: var(--article-muted);
+    font-variant-numeric: tabular-nums;
+  }
+
+  .post-content :global(li > p) {
+    margin-block: 0.45em;
+  }
+
+  .post-content :global(li > :is(ul, ol)) {
+    margin-block: 0.5em;
+  }
+
+  .post-content :global(li + li) {
+    margin-top: 0.35rem;
+  }
+
+  .post-content :global(img:not(.code-copy-icon)) {
+    display: block;
+    max-width: 100%;
+    height: auto;
+    margin-inline: auto;
+  }
+
+  .post-content :global(figure) {
+    margin: 2rem 0;
+  }
+
+  .post-content :global(figcaption) {
+    margin-top: 0.55rem;
+    color: var(--article-muted);
+    font-family: "Noto Sans SC", system-ui, sans-serif;
+    font-size: 0.78rem;
+    line-height: 1.5;
+    text-align: center;
+  }
+
+  .post-content :global(table) {
+    display: block;
+    max-width: 100%;
+    overflow-x: auto;
+    margin-block: 1.75rem;
+    border-collapse: collapse;
+    font-size: 0.9em;
+    line-height: 1.65;
+  }
+
+  .post-content :global(th),
+  .post-content :global(td) {
+    padding: 0.65rem 0.85rem;
+    border-bottom: 1px solid var(--article-rule);
+    vertical-align: top;
+  }
+
+  .post-content :global(th) {
+    background: var(--article-tint);
+    font-weight: 600;
+  }
+
+  .post-content :global(a) {
+    text-decoration: underline;
+    text-decoration-thickness: 1px;
+    text-underline-offset: 0.2em;
+    text-decoration-color: color-mix(in srgb, currentColor 45%, transparent);
+  }
+
+  .post-content :global(a:hover) {
+    text-decoration-color: currentColor;
+  }
+
+  .post-content :global(:is(a, summary):focus-visible) {
+    outline: 2px solid var(--deep-blue);
+    outline-offset: 3px;
+  }
+
+  .post-content :global(hr) {
+    margin-block: 2.5rem;
+    border: 0;
+    border-top: 1px dashed var(--article-rule);
   }
 
   .post-content :global(code),
@@ -267,7 +447,7 @@ const t = getTranslations(lang);
   }
 
   a {
-    color: var(--post-link-color);
+    color: var(--url-color);
   }
 
   .post-header {
@@ -287,31 +467,64 @@ const t = getTranslations(lang);
     line-height: 1.25;
     overflow-wrap: anywhere;
     word-break: break-word;
+    text-wrap: balance;
   }
 
   .description {
     margin: 0 0 0.7rem 0;
-    opacity: 0.9;
+    color: #596672;
+    font-weight: 400;
     line-height: 1.6;
     overflow-wrap: anywhere;
     word-break: break-word;
   }
 
-  .meta-line {
+  .post-byline {
+    display: flex;
+    flex-wrap: wrap;
+    align-items: baseline;
+    gap: 0.3rem 0.55rem;
     margin: 0.3rem 0;
-    line-height: 1.6;
+    color: #66717c;
+    font-family: "Noto Sans SC", system-ui, sans-serif;
+    font-size: 0.8rem;
+    font-weight: 400;
+    line-height: 1.5;
     overflow-wrap: anywhere;
     word-break: break-word;
   }
 
+  .byline-separator {
+    opacity: 0.65;
+  }
+
+  :global(html.dark) .post-byline {
+    color: #aab7c4;
+  }
+
+  :global(html.dark) .description {
+    color: #b5bec7;
+  }
+
+  @media (min-width: 701px) {
+    .post-title {
+      margin-bottom: 0.85rem;
+      font-size: clamp(1.7rem, 2.2vw, 2rem);
+      line-height: 1.4;
+    }
+
+    .description {
+      margin-bottom: 1rem;
+      font-size: 1rem;
+    }
+  }
+
   .post-cover {
     width: 300px;
     height: auto;
     aspect-ratio: 16 / 10;
     object-fit: cover;
     object-position: center;
-    /* border-radius: 0.4rem; */
-    border: 1.5px #94a0ab dashed;
     display: block;
   }
 
@@ -327,39 +540,10 @@ const t = getTranslations(lang);
   .tags {
     display: flex;
     flex-wrap: wrap;
-    gap: 0.4rem;
+    gap: 0.25rem 0.9rem;
     margin-top: 0.8rem;
     min-width: 0;
-  }
-
-  .tag {
-    margin: 0;
-    padding: 0.22em 0.65em;
     font-size: 0.88rem;
-    line-height: 1.2;
-    border: 1px dashed #8b6b4a;
-    border-radius: 0;
-    background-color: transparent;
-    max-width: 100%;
-  }
-
-  .tag a {
-    color: #6f4e37;
-    text-decoration: none;
-    overflow-wrap: anywhere;
-    word-break: break-word;
-  }
-
-  .tag a:hover {
-    text-decoration: underline;
-  }
-
-  :global(.dark) .tag {
-    border-color: #d8c7a1;
-  }
-
-  :global(.dark) .tag a {
-    color: #e6d8b8;
   }
 
   @media (max-width: 560px) {
@@ -374,15 +558,16 @@ const t = getTranslations(lang);
     }
   }
 
-  details {
+  .post-content :global(details) {
     margin: 1.5rem 0;
     overflow: hidden;
-    border-top: 2px solid #1e3a5f;
-    border-radius: 0 0 0.5rem 0.5rem;
-    background: rgba(128, 128, 128, 0.14);
+    border-top: 1px solid var(--article-rule);
+    border-bottom: 1px solid var(--article-rule);
+    border-radius: 0;
+    background: var(--article-tint);
   }
 
-  details summary {
+  .post-content :global(details summary) {
     display: flex;
     align-items: center;
     gap: 0.5rem;
@@ -393,11 +578,11 @@ const t = getTranslations(lang);
     list-style: none;
   }
 
-  details summary::-webkit-details-marker {
+  .post-content :global(details summary::-webkit-details-marker) {
     display: none;
   }
 
-  details summary::before {
+  .post-content :global(details summary::before) {
     content: "›";
     display: inline-block;
     font-size: 1.25rem;
@@ -405,46 +590,46 @@ const t = getTranslations(lang);
     transition: transform 0.2s ease;
   }
 
-  details[open] summary::before {
+  .post-content :global(details[open] summary::before) {
     transform: rotate(90deg);
   }
 
   /* 展开内容 */
-  details > :not(summary) {
+  .post-content :global(details > :not(summary)) {
     box-sizing: border-box;
-    margin-top: 0;
-    margin-bottom: 0;
-    padding-right: 1rem;
+    margin: 0.8rem 1rem;
+    padding: 0;
   }
 
   /* 为列表序号预留空间 */
-  details > ol,
-  details > ul {
-    padding: 0.6rem 1rem 1rem 3rem;
+  .post-content :global(details > ol),
+  .post-content :global(details > ul) {
+    padding-inline-start: 1.6em;
   }
 
-  details li {
+  .post-content :global(details li) {
     margin: 0.8rem 0;
   }
 
-  blockquote {
-    margin: 1.25rem 0;
-    padding: 0.75rem 1rem;
-    border-left: 4px solid var(--deep-red);
-    background: rgba(128, 128, 128, 0.1);
-    border-radius: 0 0.4rem 0.4rem 0;
+  .post-content :global(blockquote) {
+    margin: 1.5rem 0;
+    padding: 0.15rem 0 0.15rem 1rem;
+    border-left: 3px solid var(--deep-blue);
+    color: var(--article-muted);
+    background: transparent;
+    border-radius: 0;
   }
 
-  blockquote p {
+  .post-content :global(blockquote p) {
     margin: 0;
   }
 
-  blockquote p + p {
+  .post-content :global(blockquote p + p) {
     margin-top: 0.75rem;
   }
 
   /* 块级公式：超出屏幕时只滚动公式，不撑宽整篇文章 */
-  .katex-display {
+  .post-content :global(.katex-display) {
     max-width: 100%;
     overflow-x: auto;
     overflow-y: hidden;
@@ -453,7 +638,27 @@ const t = getTranslations(lang);
   }
 
   /* 避免 KaTeX 内部元素强行把父容器撑宽 */
-  .katex-display > .katex {
+  .post-content :global(.katex-display > .katex) {
     min-width: max-content;
   }
+
+  .comments-section {
+    scroll-margin-top: 5rem;
+  }
+
+  :global(html.dark) .post-content {
+    --article-muted: #aab7c4;
+    --article-rule: rgba(170, 183, 196, 0.28);
+    --article-tint: rgba(170, 183, 196, 0.055);
+  }
+
+  :global(html.dark) .post-content :global(blockquote) {
+    border-left-color: #9ecbff;
+  }
+
+  @media (prefers-reduced-motion: reduce) {
+    #reading-progress {
+      transition: none;
+    }
+  }
 </style>
diff --git a/src/pages/404.astro b/src/pages/404.astro
index 15e2ada..a8ad11c 100644
--- a/src/pages/404.astro
+++ b/src/pages/404.astro
@@ -7,7 +7,7 @@ import "@/styles/global.css";
     pageTitle="404 Not Found"
     description="Sorry, the page doesn't exists"
 >
-    <div class="not-found">
+    <div class="not-found page-shell">
         <img src="/images/marisa.png" alt="Marisa" class="marisa-404" />
         <div class="hint">
             <h3>对不起，您请求的页面不存在哦。</h3>
diff --git a/src/pages/[lang]/about.astro b/src/pages/[lang]/about.astro
index 1008196..39473f5 100644
--- a/src/pages/[lang]/about.astro
+++ b/src/pages/[lang]/about.astro
@@ -16,7 +16,7 @@ const pageTitle = t.about.title;
   pageTitle=`${pageTitle} - ${t.banner.title}`
   image={t.about.profilePicture}
 >
-  <main class="about">
+  <div class="about page-shell">
     <h1>{t.about.title}</h1>
 
     <div class="intro">
@@ -36,14 +36,12 @@ const pageTitle = t.about.title;
     <div class="content">
       {t.about.content.map((line: string) => <p set:html={line} />)}
     </div>
-  </main>
+  </div>
 </BaseLayout>
 
 <style>
   .about {
-    max-width: 800px;
-    margin: 0 auto;
-    padding: 2rem 1rem;
+    padding-block: 2rem;
   }
 
   .about h1 {
diff --git a/src/pages/[lang]/friends.astro b/src/pages/[lang]/friends.astro
index 48cf461..c6b663f 100644
--- a/src/pages/[lang]/friends.astro
+++ b/src/pages/[lang]/friends.astro
@@ -15,9 +15,11 @@ const headerTitle = lang === "zh" ? "友情链接" : "Friends";
 ---
 
 <BaseLayout pageTitle=`${headerTitle} - ${t.banner.title}`>
-    <FriendsDescription />
-    <div class="section-divider"></div>
-    <FriendlyLinkList />
+    <div class="page-shell">
+        <FriendsDescription />
+        <div class="section-divider"></div>
+        <FriendlyLinkList />
+    </div>
 </BaseLayout>
 
 <style>
diff --git a/src/pages/[lang]/index.astro b/src/pages/[lang]/index.astro
index 5a0b04c..302a7f0 100644
--- a/src/pages/[lang]/index.astro
+++ b/src/pages/[lang]/index.astro
@@ -14,51 +14,57 @@ const lang = getLangFromUrl(Astro.url);
 const t = getTranslations(lang);
 const headerTitle = lang === "zh" ? "Cloverta的博客" : "Cloverta's blog";
 const pageTitle = t.home.title;
-const rssLink = lang === "zh" ? "/rss.xml" : "/en/rss.xml"
+const rssLink = lang === "zh" ? "/rss.xml" : "/en/rss.xml";
 ---
 
 <BaseLayout pageTitle=`${headerTitle} - ${t.banner.subtitle}`>
-  <h1 class="page-title">
-    <span>{pageTitle}</span>
-    <a
-      href={rssLink}
-      target="_blank"
-      rel="noopener noreferrer"
-      aria-label="RSS Feed"
-      class="rss-link"
-    >
-      <svg
-        xmlns="http://www.w3.org/2000/svg"
-        viewBox="0 0 24 24"
-        fill="currentColor"
-        width="33"
-        height="33"
-        aria-hidden="true"
-        style="margin-left: 0px; margin-bottom: -5px; color:#3f50e5"
+  <div class="index page-shell">
+    <h1 class="page-title">
+      <span>{pageTitle}</span>
+      <a
+        href={rssLink}
+        target="_blank"
+        rel="noopener noreferrer"
+        aria-label="RSS Feed"
+        class="rss-link"
       >
-        <path
-          d="M6.18 17.82a1.64 1.64 0 1 1 0 3.28 1.64 1.64 0 0 1 0-3.28ZM3 10.44v2.25c4.56 0 8.27 3.71 8.27 8.27h2.25C13.52 15.16 8.84 10.44 3 10.44Zm0-4.54v2.25c7.06 0 12.81 5.75 12.81 12.81h2.25C18.06 12.66 11.3 5.9 3 5.9Z"
-        ></path>
-      </svg>
-    </a>
-  </h1>
-  <div class="content">
-    {t.home.content.map((line: string) => <p set:html={line} />)}
+        <svg
+          xmlns="http://www.w3.org/2000/svg"
+          viewBox="0 0 24 24"
+          fill="currentColor"
+          width="33"
+          height="33"
+          aria-hidden="true"
+          style="margin-left: 0px; margin-bottom: -5px; color:#3f50e5"
+        >
+          <path
+            d="M6.18 17.82a1.64 1.64 0 1 1 0 3.28 1.64 1.64 0 0 1 0-3.28ZM3 10.44v2.25c4.56 0 8.27 3.71 8.27 8.27h2.25C13.52 15.16 8.84 10.44 3 10.44Zm0-4.54v2.25c7.06 0 12.81 5.75 12.81 12.81h2.25C18.06 12.66 11.3 5.9 3 5.9Z"
+          ></path>
+        </svg>
+      </a>
+    </h1>
+    <div class="content">
+      {t.home.content.map((line: string) => <p set:html={line} />)}
+    </div>
+
+    <div class="section-divider"></div>
+
+    <h2 class="section-title">{t.home.latestTitle}</h2>
+
+    <PostList />
+
+    <div class="section-divider"></div>
+
+    <!-- <Remark42LatestComments lang={lang} client:load /> -->
+    <LatestComments lang={lang} />
   </div>
-
-  <div class="section-divider"></div>
-
-  <h2>{t.home.latestTitle}</h2>
-
-  <PostList />
-
-  <div class="section-divider"></div>
-
-  <!-- <Remark42LatestComments lang={lang} client:load /> -->
-  <LatestComments />
 </BaseLayout>
 
 <style>
+  .index {
+    min-width: 0;
+  }
+
   .section-divider {
     height: 1px;
     background: #cdd2d8;
@@ -73,4 +79,19 @@ const rssLink = lang === "zh" ? "/rss.xml" : "/en/rss.xml"
   .page-title {
     font-weight: 700;
   }
+
+  .section-title,
+  .index :global(.latest-comments > h2) {
+    margin: 0 0 1.25rem;
+    font-family: "Noto Sans SC", system-ui, sans-serif;
+    font-size: 0.95rem;
+    font-weight: 500;
+    line-height: 1.5;
+    color: #66717c;
+  }
+
+  :global(html.dark) .section-title,
+  :global(html.dark) .index :global(.latest-comments > h2) {
+    color: #aab7c4;
+  }
 </style>
diff --git a/src/pages/[lang]/tags/[tag].astro b/src/pages/[lang]/tags/[tag].astro
index 73a7004..889df60 100644
--- a/src/pages/[lang]/tags/[tag].astro
+++ b/src/pages/[lang]/tags/[tag].astro
@@ -32,34 +32,36 @@ const t = getTranslations(lang);
 ---
 
 <BaseLayout pageTitle={String(tag)}>
-  <p class="tag-heading">
-    {lang === "zh" ? "带有标签" : "Posts tagged with"}{" "}
-    <span class="tag-chip" transition:name={`post-tags-${tag}`}>{tag}</span>
-    {lang === "zh" ? "的文章" : ""}
-  </p>
-  <ul>
-    {
-      posts.map((post: any) => {
-        const formattedDate = new Date(post.data.pubDate)
-          .toISOString()
-          .split("T")[0];
+  <div class="page-shell">
+    <p class="tag-heading">
+      {lang === "zh" ? "带有标签" : "Posts tagged with"}{" "}
+      <span class="tag-chip" transition:name={`post-tags-${tag}`}>{tag}</span>
+      {lang === "zh" ? "的文章" : ""}
+    </p>
+    <ul>
+      {
+        posts.map((post: any) => {
+          const formattedDate = new Date(post.data.pubDate)
+            .toISOString()
+            .split("T")[0];
 
-        const [postLang, ...slugParts] = post.id.split("/");
-        const slug = slugParts.join("/");
+          const [postLang, ...slugParts] = post.id.split("/");
+          const slug = slugParts.join("/");
 
-        return (
-          <PostItem
-            url={`/${lang}/posts/${slug}/`}
-            title={post.data.title}
-            date={formattedDate}
-            img={post.data.image.url}
-            tags={post.data.tags}
-            postId={post.id}
-          />
-        );
-      })
-    }
-  </ul>
+          return (
+            <PostItem
+              url={`/${lang}/posts/${slug}/`}
+              title={post.data.title}
+              date={formattedDate}
+              img={post.data.image.url}
+              tags={post.data.tags}
+              postId={post.id}
+            />
+          );
+        })
+      }
+    </ul>
+  </div>
 </BaseLayout>
 
 <style>
diff --git a/src/pages/[lang]/tags/index.astro b/src/pages/[lang]/tags/index.astro
index b7799f0..aeda960 100644
--- a/src/pages/[lang]/tags/index.astro
+++ b/src/pages/[lang]/tags/index.astro
@@ -1,5 +1,6 @@
 ---
 import BaseLayout from "@/layouts/BaseLayout.astro";
+import TagLink from "@/components/TagLink.astro";
 import { getCollection } from "astro:content";
 import { getTranslations, type Lang } from "@/i18n";
 import "@/styles/global.css";
@@ -16,17 +17,19 @@ const pageTitle = lang === "zh" ? "标签索引" : "Tag Index";
 ---
 
 <BaseLayout pageTitle=`${pageTitle} - ${t.banner.title}`>
-    <h1>{t.tags.title}</h1>
-    <p>{t.tags.description}</p>
+    <div class="tags-layout page-shell">
+        <h1>{t.tags.title}</h1>
+        <p>{t.tags.description}</p>
 
-    <div class="tags">
-        {
-            tags.map((tag) => (
-                <p class="tag" transition:name={`post-tags-${tag}`}>
-                    <a href={`/${lang}/tags/${tag}`}>{tag}</a>
-                </p>
-            ))
-        }
+        <div class="tags">
+            {
+                tags.map((tag) => (
+                    <p class="tag" transition:name={`post-tags-${tag}`}>
+                        <TagLink tag={String(tag)} lang={lang} />
+                    </p>
+                ))
+            }
+        </div>
     </div>
 </BaseLayout>
 
@@ -34,49 +37,13 @@ const pageTitle = lang === "zh" ? "标签索引" : "Tag Index";
     .tags {
         display: flex;
         flex-wrap: wrap;
-        gap: 0.4rem;
+        gap: 0.4rem 1.25rem;
         margin-top: 0.8rem;
     }
 
     .tag {
-        font-family:
-            "Noto Sans SC",
-            system-ui,
-            -apple-system,
-            BlinkMacSystemFont,
-            "Segoe UI",
-            Roboto,
-            Oxygen,
-            Ubuntu,
-            Cantarell,
-            "Open Sans",
-            "Helvetica Neue",
-            sans-serif;
-
         margin: 0;
-        padding: 0.22em 0.65em;
         font-size: 1rem;
-        line-height: 1.2;
-        border: 1px dashed #8b6b4a;
-        border-radius: 0;
-        background-color: transparent;
-    }
-
-    .tag a {
-        color: #6f4e37;
-        text-decoration: none;
-        font-weight: 500;
-    }
-
-    .tag a:hover {
-        text-decoration: underline;
-    }
-
-    :global(.dark) .tag {
-        border-color: #d8c7a1;
-    }
-
-    :global(.dark) .tag a {
-        color: #e6d8b8;
+        max-width: 100%;
     }
 </style>
diff --git a/src/pages/[lang]/timeline.astro b/src/pages/[lang]/timeline.astro
index 3083483..b39b529 100644
--- a/src/pages/[lang]/timeline.astro
+++ b/src/pages/[lang]/timeline.astro
@@ -14,6 +14,8 @@ const headerTitle = lang === "zh" ? "时间轴" : "Timeline";
 ---
 
 <BaseLayout pageTitle=`${headerTitle} - ${t.banner.title}` `>
-    <h1>{t.nav.timeline}</h1>
-    <PostTimeline />
+    <div class="page-shell">
+        <h1>{t.nav.timeline}</h1>
+        <PostTimeline />
+    </div>
 </BaseLayout>
diff --git a/src/plugins/rehype-image-captions.mjs b/src/plugins/rehype-image-captions.mjs
new file mode 100644
index 0000000..5e2d7ef
--- /dev/null
+++ b/src/plugins/rehype-image-captions.mjs
@@ -0,0 +1,48 @@
+// Standalone Markdown images may use their optional title as a visible caption.
+// Keep alt text unchanged: alternative text and captions serve different purposes.
+export default function rehypeImageCaptions() {
+  return (tree) => {
+    function visit(parent) {
+      if (!Array.isArray(parent.children)) return;
+
+      parent.children = parent.children.map((node) => {
+        if (node.type === "element" && node.tagName === "p") {
+          const content = node.children.filter(
+            (child) => child.type !== "text" || child.value.trim() !== "",
+          );
+          const onlyChild = content.length === 1 ? content[0] : null;
+          const image = onlyChild?.tagName === "img"
+            ? onlyChild
+            : onlyChild?.tagName === "a" && onlyChild.children?.length === 1
+              && onlyChild.children[0].tagName === "img"
+              ? onlyChild.children[0]
+              : null;
+          const caption = image?.properties?.title;
+
+          if (typeof caption === "string" && caption.trim()) {
+            return {
+              type: "element",
+              tagName: "figure",
+              properties: {},
+              children: [
+                onlyChild,
+                {
+                  type: "element",
+                  tagName: "figcaption",
+                  properties: {},
+                  children: [{ type: "text", value: caption.trim() }],
+                },
+              ],
+            };
+          }
+        }
+
+        // Respect captions and markup authored explicitly in HTML.
+        if (node.tagName !== "figure") visit(node);
+        return node;
+      });
+    }
+
+    visit(tree);
+  };
+}
diff --git a/src/styles/code.css b/src/styles/code.css
index 20a8252..d16f58e 100644
--- a/src/styles/code.css
+++ b/src/styles/code.css
@@ -1,21 +1,31 @@
 .code-block-wrapper {
     position: relative;
+    min-width: 0;
+    max-width: 100%;
+    margin: 1.5rem 0;
+}
+
+.code-block-toolbar {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 1rem;
+    padding: 0.4rem 0.5rem 0.4rem 1rem;
+    border-bottom: 1px solid rgba(127, 127, 127, 0.2);
+    background: rgba(127, 127, 127, 0.08);
+    border-radius: 3px 3px 0 0;
 }
 
 .code-block-wrapper pre {
+    margin: 0;
     padding: 1rem;
-    border-radius: 3px;
+    max-width: 100%;
+    border-radius: 0 0 3px 3px;
     overflow-x: auto;
     line-height: 1.6;
-    margin: 1rem 0;
     position: relative;
-
 }
 
-/* pre:has(> .code-copy-button) {
-    padding-top: 2.75rem;
-} */
-
 code {
     font-family: "Maple Mono", monospace;
     font-size: 0.96rem;
@@ -31,12 +41,15 @@ td code {
     background: rgba(127, 127, 127, 0.12);
 }
 
-.code-copy-button {
-    position: absolute;
-    top: 0.5rem;
-    right: 0.5rem;
-    z-index: 2;
+.code-block-wrapper pre > code {
+    padding: 0;
+    border-radius: 0;
+    background: transparent;
+}
 
+.code-copy-button {
+    flex: 0 0 auto;
+    margin-left: auto;
     display: grid;
     place-items: center;
     width: 2rem;
@@ -58,6 +71,18 @@ td code {
         box-shadow 0.15s ease;
 }
 
+.code-language-label {
+    min-width: 0;
+    overflow-wrap: anywhere;
+    color: #687583;
+    font-family: "Maple Mono", monospace;
+    font-size: 0.72rem;
+    font-weight: 700;
+    line-height: 1.5;
+    letter-spacing: 0.04em;
+    pointer-events: none;
+}
+
 .code-copy-icon {
     display: block;
     width: 100%;
@@ -81,10 +106,15 @@ td code {
     background: #dcebd5;
 }
 
+html.dark .code-language-label,
+.dark .code-language-label {
+    color: #aeb9c4;
+}
+
 /* .dark .code-copy-button {
     border-color: #9ecbff;
 }
 
 .dark .code-copy-button:hover {
     box-shadow: 3px 4px 8px rgb(0 0 0 / 35%);
-} */
\ No newline at end of file
+} */
diff --git a/src/styles/global.css b/src/styles/global.css
index 5a144c6..2fc2b53 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -45,23 +45,48 @@ body {
   font-size: 1.15rem;
 }
 
+.page-content,
+.page-shell {
+  width: 100%;
+  min-width: 0;
+}
+
+.page-shell {
+  max-width: var(--page-content-width);
+  margin-inline: auto;
+}
+
 body::after {
   content: "";
   position: fixed;
   right: 0;
   bottom: 0;
-  width: 400px;
-  /* 按需调整大小 */
-  height: 400px;
-  /* 按需调整大小 */
+  width: clamp(300px, 31vw, 400px);
+  height: clamp(300px, 31vw, 400px);
   background-image: url("https://files.seeusercontent.com/2026/04/16/1sXb/touhou___kirisame_marisa__2__by_.webp");
   background-repeat: no-repeat;
   background-position: right bottom;
   background-size: contain;
-  opacity: 0.35;
+  opacity: 0;
+  -webkit-mask-image: radial-gradient(
+    ellipse at right bottom,
+    #000 0%,
+    #000 38%,
+    transparent 78%
+  );
+  mask-image: radial-gradient(
+    ellipse at right bottom,
+    #000 0%,
+    #000 38%,
+    transparent 78%
+  );
   pointer-events: none;
   z-index: -1;
+  transition: opacity 0.25s ease;
+}
 
+body.is-home::after {
+  opacity: 0.16;
 }
 
 html.dark body::after {
@@ -69,7 +94,7 @@ html.dark body::after {
 }
 
 @media (max-width: 900px) {
-  body::after {
+  body.is-home::after {
     opacity: 0;
   }
 }
@@ -98,7 +123,7 @@ h1 {
 
 a {
   color: var(--url-color);
-  font-weight: 700;
+  font-weight: inherit;
   text-decoration: none;
 }
 
@@ -119,7 +144,6 @@ html.dark {
 
 .dark .nav-links a {
   color: #9ecbff;
-  font-weight: 700;
 }
 
 .dark .nav-links a:hover,
@@ -129,7 +153,6 @@ html.dark {
 
 .dark a {
   color: #9ecbff;
-  font-weight: 700;
 }
 
 .dark a:hover,
@@ -141,4 +164,4 @@ img {
   max-width: 100%;
   height: auto;
   display: block;
-}
\ No newline at end of file
+}
diff --git a/src/styles/latest-comments.css b/src/styles/latest-comments.css
index 58d3548..05bff01 100644
--- a/src/styles/latest-comments.css
+++ b/src/styles/latest-comments.css
@@ -7,14 +7,15 @@
 }
 
 .loading-card {
-    height: 92px;
-    margin: 0 0 14px 0;
-    padding: 0.9rem 1rem;
-    border: 1px dashed #aeb8c2;
-    background: linear-gradient(90deg,
-            rgba(160, 175, 190, 0.06) 25%,
-            rgba(160, 175, 190, 0.16) 50%,
-            rgba(160, 175, 190, 0.06) 75%);
+    height: 82px;
+    padding: 1rem 0;
+    border-bottom: 1px solid rgba(110, 125, 140, 0.28);
+    background: linear-gradient(
+        90deg,
+        transparent 15%,
+        rgba(160, 175, 190, 0.13) 50%,
+        transparent 85%
+    );
     background-size: 200% 100%;
     animation: shimmer 1.2s infinite linear;
 }
@@ -34,65 +35,58 @@
 }
 
 .comment-card {
-    display: block;
-    margin: 0 0 14px 0;
-    padding: 0.6rem 1rem;
-    border: 2px dashed #aeb8c2;
-    background-color: var(--comment-background);
+    padding: 1rem 0;
+    border-bottom: 1px solid rgba(110, 125, 140, 0.28);
+}
 
+.comment-card:first-child {
+    padding-top: 0.35rem;
 }
 
 .comment-card:last-child {
-    margin-bottom: 0;
+    padding-bottom: 0;
+    border-bottom: 0;
 }
 
 .comment-card-body {
-    display: grid;
-    grid-template-columns: minmax(0, 1fr) 320px;
-    grid-template-areas:
-        "info title"
-        "text title";
-    gap: 0.2rem 1rem;
-    align-items: start;
+    min-width: 0;
 }
 
 .comment-card-info {
-    grid-area: info;
     display: flex;
     align-items: center;
-    gap: 0.7rem;
+    gap: 0.65rem;
     min-width: 0;
 }
 
 .comment-avatar {
-    width: 35px;
-    height: 35px;
-    flex-shrink: 0;
+    width: 32px;
+    height: 32px;
+    flex: 0 0 32px;
 }
 
 .comment-avatar-img,
 .comment-avatar-fallback {
-    width: 35px;
-    height: 35px;
+    width: 32px;
+    height: 32px;
     display: block;
     border-radius: 50%;
     object-fit: cover;
 }
 
 .comment-avatar-img {
-    border: 1px dashed #aeb8c2;
-    background: #f3f5f7;
+    background: rgba(160, 175, 190, 0.1);
 }
 
 .comment-avatar-fallback {
     display: flex;
     align-items: center;
     justify-content: center;
-    border: 1px dashed #aeb8c2;
-    background: rgba(160, 175, 190, 0.12);
+    background: rgba(160, 175, 190, 0.14);
     color: #5e6b77;
-    font-weight: 700;
-    font-size: 1rem;
+    font-family: system-ui, sans-serif;
+    font-size: 0.85rem;
+    font-weight: 600;
     user-select: none;
 }
 
@@ -105,90 +99,92 @@
     display: flex;
     flex-wrap: wrap;
     align-items: baseline;
-    gap: 0.6rem;
+    gap: 0.25rem 0.55rem;
     min-width: 0;
-    line-height: 1.3;
-    font-style: italic;
-    font-family:
-        system-ui,
-        -apple-system,
-        BlinkMacSystemFont,
-        "Segoe UI",
-        "PingFang SC",
-        "Hiragino Sans GB",
-        "Microsoft YaHei",
-        "Noto Sans CJK SC",
-        "Source Han Sans SC",
-        sans-serif;
+    font-family: system-ui, sans-serif;
+    line-height: 1.35;
 }
 
-.comment-author {
+.comment-author,
+.comment-reply-to {
+    color: #66717c;
+    font-size: 0.82rem;
+    font-weight: 500;
+    overflow-wrap: anywhere;
+}
+
+.comment-reply-sep,
+.comment-time {
+    color: #7a858f;
+    font-size: 0.72rem;
     font-weight: 400;
-    font-size: 0.8rem;
-    color: gray;
+}
+
+.comment-card-text {
+    display: -webkit-box;
+    margin: 0.6rem 0 0.5rem;
+    max-height: 4.65em;
+    overflow: hidden;
+    color: #3f4a54;
+    font-family: system-ui, sans-serif;
+    font-size: 0.93rem;
+    font-weight: 400;
+    line-height: 1.55;
     overflow-wrap: anywhere;
     word-break: break-word;
+    -webkit-box-orient: vertical;
+    -webkit-line-clamp: 3;
 }
 
-.comment-time {
-    color: #7a7a7a;
-    font-size: 0.7rem;
+.comment-source {
+    display: flex;
+    align-items: baseline;
+    justify-content: space-between;
+    gap: 0.55rem 1rem;
+    min-width: 0;
+    color: #89939c;
+    font-family: system-ui, sans-serif;
+    font-size: 0.75rem;
+    line-height: 1.45;
 }
 
-.comment-card-title {
-    grid-area: title;
-    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
-    text-align: right;
+.comment-source-context {
+    display: flex;
+    align-items: baseline;
+    gap: 0.4rem;
     min-width: 0;
 }
 
 .comment-title-link {
+    min-width: 0;
+    overflow: hidden;
     color: #6f8090;
+    font-size: 0.82rem;
+    font-weight: 400;
     text-decoration: none;
-    font-size: 1.1rem;
-    font-weight: 700;
-    line-height: 1.45;
-    white-space: normal;
-    overflow-wrap: anywhere;
-    word-break: break-word;
+    text-overflow: ellipsis;
+    white-space: nowrap;
 }
 
-.comment-title-link:hover {
+.comment-title-link:hover,
+.comment-title-link:focus-visible {
     text-decoration: underline;
 }
 
-.comment-card-text {
-    grid-area: text;
-    margin: 0;
-    color: #555;
-    line-height: 1.5;
-    font-size: 0.93rem;
-    min-width: 0;
-    overflow-wrap: anywhere;
-    word-break: break-word;
-    white-space: normal;
-    font-family:
-        system-ui,
-        -apple-system,
-        BlinkMacSystemFont,
-        "Segoe UI",
-        "PingFang SC",
-        "Hiragino Sans GB",
-        "Microsoft YaHei",
-        "Noto Sans CJK SC",
-        "Source Han Sans SC",
-        sans-serif;
+.comment-discussion-link {
+    display: none;
+    flex: 0 0 auto;
+    color: var(--url-color);
+    font-size: 0.76rem;
+    font-weight: 500;
+    text-decoration-line: underline;
+    text-decoration-style: dashed;
+    text-underline-offset: 0.22em;
+    white-space: nowrap;
 }
 
-.comment-card-text :global(p),
-.comment-card-text p {
-    margin: 0;
-}
-
-.comment-card-text :global(img),
-.comment-card-text img {
-    max-width: 100%;
-    height: auto;
+.comment-card.is-truncated .comment-discussion-link {
+    display: inline;
 }
 
 .latest-comments-empty {
@@ -196,68 +192,67 @@
     font-style: italic;
 }
 
-.comment-reply-sep {
-    font-size: 0.8rem;
-    opacity: 0.7;
+html.dark .comment-card,
+.dark .comment-card,
+html.dark .loading-card,
+.dark .loading-card {
+    border-color: rgba(170, 183, 196, 0.25);
 }
 
-.latest-comments .comment-reply-to {
-    font-weight: 400;
-    font-size: 0.8rem;
-    color: gray;
-    opacity: 0.9;
-    overflow-wrap: anywhere;
-    word-break: break-word;
-}
-
-html.dark .latest-comments .comment-card,
-.dark .latest-comments .comment-card {
-    border-color: #7f8c97;
-    background-color: #252525;
-}
-
-html.dark .comment-title-link {
-    color: #c8d2dc;
-}
-
-html.dark .comment-card-text {
+html.dark .comment-card-text,
+.dark .comment-card-text {
     color: #d3d7db;
 }
 
-html.dark .comment-time {
-    color: #a8b0b7;
+html.dark .comment-author,
+.dark .comment-author,
+html.dark .comment-reply-to,
+.dark .comment-reply-to {
+    color: #b9c3cc;
 }
 
-html.dark .latest-comments .comment-avatar-fallback,
-.dark .latest-comments .comment-avatar-fallback {
-    border-color: #7f8c97;
-    background-color: #3a444d;
-    color: #dbe3ea;
+html.dark .comment-time,
+.dark .comment-time,
+html.dark .comment-reply-sep,
+.dark .comment-reply-sep,
+html.dark .comment-source,
+.dark .comment-source {
+    color: #929da7;
 }
 
-:global(.dark) .comment-avatar-fallback {
-    background: rgba(180, 190, 200, 0.12);
+html.dark .comment-title-link,
+.dark .comment-title-link {
+    color: #aabbd0;
+}
+
+html.dark .comment-discussion-link,
+.dark .comment-discussion-link {
+    color: #9ecbff;
+}
+
+html.dark .comment-avatar-fallback,
+.dark .comment-avatar-fallback {
+    background: rgba(180, 190, 200, 0.14);
     color: #dbe3ea;
 }
 
 @media (max-width: 640px) {
-    .comment-card-body {
-        grid-template-columns: 1fr;
-        grid-template-areas:
-            "title"
-            "info"
-            "text";
+    .comment-card {
+        padding-block: 0.85rem;
     }
 
-    .comment-card-title {
-        text-align: left;
-        margin-bottom: 0.2rem;
+    .comment-card-text {
+        margin-top: 0.5rem;
     }
 
-    .comment-title-link {
-        display: block;
-        white-space: nowrap;
-        overflow: hidden;
-        text-overflow: ellipsis;
+    .comment-source {
+        align-items: flex-start;
+        flex-wrap: wrap;
     }
-}
\ No newline at end of file
+}
+
+@media (prefers-reduced-motion: reduce) {
+    .loading-card {
+        animation: none;
+    }
+}
diff --git a/src/styles/variables.css b/src/styles/variables.css
index 71e5df7..030fe53 100644
--- a/src/styles/variables.css
+++ b/src/styles/variables.css
@@ -1,5 +1,6 @@
 /* 默认配色 */
 :root {
+    --page-content-width: 850px;
     --deep-blue: #536493;
     --deep-red: #ef5a6f;
     --background-color: #f9f2ed;
@@ -9,4 +10,4 @@
 
     --background-color-dark: #1e1e1e;
     --text-color-dark: #e6e6e6;
-}
\ No newline at end of file
+}