阅读进度 + 继续阅读 + 文章系列 + 完整 SEO

src/components/PostSeries.astro

@@ -0,0 +1,49 @@
+---
+import type { BlogPost } from '@/lib/posts';
+import { siteConfig } from '../../site.config.mjs';
+
+interface Props {
+  currentPost: BlogPost;
+  posts: BlogPost[];
+}
+
+const { currentPost, posts } = Astro.props;
+const currentIndex = posts.findIndex((post) => post.slug === currentPost.slug);
+const previousPost = currentIndex > 0 ? posts[currentIndex - 1] : undefined;
+const nextPost = currentIndex >= 0 && currentIndex < posts.length - 1 ? posts[currentIndex + 1] : undefined;
+const labels = siteConfig.series?.labels ?? {};
+const seriesKey = currentPost.series ?? '';
+const seriesTitle = labels[seriesKey] ?? seriesKey;
+---
+
+<section class="post-series" aria-labelledby="post-series-title">
+  <header class="post-series-head">
+    <div>
+      <span>ARTICLE SERIES</span>
+      <h2 id="post-series-title">{seriesTitle}</h2>
+    </div>
+    <strong>第 {currentIndex + 1} / {posts.length} 篇</strong>
+  </header>
+
+  <ol class="post-series-list">
+    {posts.map((post, index) => (
+      <li class:list={{ 'is-current': post.slug === currentPost.slug }}>
+        <a href={post.href} aria-current={post.slug === currentPost.slug ? 'page' : undefined}>
+          <span>{String(index + 1).padStart(2, '0')}</span>
+          <strong>{post.title}</strong>
+        </a>
+      </li>
+    ))}
+  </ol>
+
+  {(previousPost || nextPost) && (
+    <nav class="post-series-nav" aria-label="系列文章导航">
+      {previousPost ? (
+        <a href={previousPost.href} rel="prev"><span>上一篇</span><strong>{previousPost.title}</strong></a>
+      ) : <span></span>}
+      {nextPost ? (
+        <a href={nextPost.href} rel="next"><span>下一篇</span><strong>{nextPost.title}</strong></a>
+      ) : <span></span>}
+    </nav>
+  )}
+</section>

src/content.config.ts

@@ -6,6 +6,7 @@ const posts = defineCollection({
   schema: z.object({
     title: z.any().optional(),
     date: z.any().optional(),
+    updated: z.any().optional(),
     abbrlink: z.any().optional(),
     tags: z.any().optional(),
     category: z.any().optional(),
@@ -14,6 +15,8 @@ const posts = defineCollection({
     description: z.any().optional(),
     comments: z.any().optional(),
     cover: z.any().optional(),
+    series: z.any().optional(),
+    seriesOrder: z.any().optional(),
   }).passthrough(),
 });
 

src/layouts/BaseLayout.astro

@@ -7,11 +7,31 @@ import { publicSiteConfig, siteConfig } from '../../site.config.mjs';
 interface Props {
   title?: string;
   description?: string;
+  canonicalPath?: string;
+  image?: string;
+  type?: 'website' | 'article';
+  publishedTime?: string;
+  modifiedTime?: string;
+  keywords?: string[];
+  jsonLd?: Record<string, unknown>;
 }
 
 const siteTitle = siteConfig.site.name;
-const { title = siteTitle, description = siteConfig.site.description } = Astro.props;
+const {
+  title = siteTitle,
+  description = siteConfig.site.description,
+  canonicalPath = Astro.url.pathname,
+  image = siteConfig.author.avatar,
+  type = 'website',
+  publishedTime,
+  modifiedTime,
+  keywords = [],
+  jsonLd,
+} = Astro.props;
 const pageTitle = title === siteTitle ? siteTitle : `${title} | ${siteTitle}`;
+const canonicalUrl = new URL(canonicalPath, siteConfig.site.url).href;
+const socialImageUrl = new URL(image, siteConfig.site.url).href;
+const jsonLdHtml = jsonLd ? JSON.stringify(jsonLd).replace(/</g, '\\u003c') : '';
 const currentYear = new Date().getFullYear();
 const publicConfigJson = JSON.stringify(publicSiteConfig).replace(/</g, '\\u003c');
 const consoleSites = [
@@ -48,6 +68,27 @@ const consoleSites = [
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <meta name="description" content={description} />
+    <meta name="author" content={siteConfig.author.name} />
+    {keywords.length > 0 && <meta name="keywords" content={keywords.join(', ')} />}
+    <link rel="canonical" href={canonicalUrl} />
+    <link rel="alternate" type="application/rss+xml" title={`${siteTitle} RSS`} href={new URL('/rss.xml', siteConfig.site.url).href} />
+    <meta property="og:site_name" content={siteTitle} />
+    <meta property="og:locale" content="zh_CN" />
+    <meta property="og:type" content={type} />
+    <meta property="og:title" content={pageTitle} />
+    <meta property="og:description" content={description} />
+    <meta property="og:url" content={canonicalUrl} />
+    <meta property="og:image" content={socialImageUrl} />
+    <meta property="og:image:alt" content={title} />
+    <meta name="twitter:card" content="summary_large_image" />
+    <meta name="twitter:title" content={pageTitle} />
+    <meta name="twitter:description" content={description} />
+    <meta name="twitter:image" content={socialImageUrl} />
+    {publishedTime && <meta property="article:published_time" content={publishedTime} />}
+    {modifiedTime && <meta property="article:modified_time" content={modifiedTime} />}
+    {type === 'article' && <meta property="article:author" content={siteConfig.author.name} />}
+    {keywords.map((keyword) => <meta property="article:tag" content={keyword} />)}
+    {jsonLd && <script type="application/ld+json" is:inline set:html={jsonLdHtml}></script>}
     <link rel="icon" href={siteConfig.assets.icon} />
     <script defer src={siteConfig.analytics.umami.script} data-website-id={siteConfig.analytics.umami.websiteId}></script>
     <script is:inline set:html={`window.SITE_CONFIG = ${publicConfigJson};`}></script>

src/lib/posts.ts

@@ -7,8 +7,12 @@ export type BlogPost = {
   slug: string;
   date: Date;
   dateText: string;
+  updated?: Date;
+  updatedText?: string;
   tags: string[];
   categories: string[];
+  series?: string;
+  seriesOrder?: number;
   summary: string;
   comments: boolean;
   cover?: string;
@@ -44,6 +48,12 @@ function toDate(value: unknown): Date {
   return new Date(0);
 }
 
+function toOptionalDate(value: unknown): Date | undefined {
+  if (value === undefined || value === null || value === '') return undefined;
+  const date = toDate(value);
+  return date.valueOf() > 0 ? date : undefined;
+}
+
 function formatDate(date: Date): string {
   return new Intl.DateTimeFormat('zh-CN', {
     year: 'numeric',
@@ -79,8 +89,13 @@ export async function getAllPosts(): Promise<BlogPost[]> {
   return entries
     .map((entry) => {
       const date = toDate(entry.data.date);
+      const updated = toOptionalDate(entry.data.updated);
       const slug = String(entry.data.abbrlink ?? fallbackSlug(entry.id));
       const title = String(entry.data.title ?? slug);
+      const series = typeof entry.data.series === 'string' && entry.data.series.trim()
+        ? entry.data.series.trim()
+        : undefined;
+      const rawSeriesOrder = Number(entry.data.seriesOrder);
 
       return {
         entry,
@@ -88,8 +103,12 @@ export async function getAllPosts(): Promise<BlogPost[]> {
         slug,
         date,
         dateText: formatDate(date),
+        updated,
+        updatedText: updated ? formatDate(updated) : undefined,
         tags: asArray(entry.data.tags),
         categories: getCategories(entry),
+        series,
+        seriesOrder: Number.isFinite(rawSeriesOrder) ? rawSeriesOrder : undefined,
         summary: makeSummary(entry),
         comments: entry.data.comments !== false,
         cover: typeof entry.data.cover === 'string' ? entry.data.cover : undefined,

src/pages/index.astro

@@ -20,10 +20,10 @@ const pageData = getPageSlice(posts, 1);
       <h1>{siteConfig.site.name}</h1>
       <p>把折腾、学习和生活片段安静地收在这里。</p>
     </div>
-    <aside id="bber-talk" class="hero-talk" aria-label="璇磋婊氬姩灞曠ず">
+    <aside id="bber-talk" class="hero-talk" aria-label="说说滚动展示">
       <div class="hero-talk-head">
         <span>Recent Talks</span>
-        <a href="/shuoshuo/" aria-label="鏌ョ湅鍏ㄩ儴璇磋">
+        <a href="/shuoshuo/" aria-label="查看全部说说">
           <i class="fa-regular fa-comments" aria-hidden="true"></i>
         </a>
       </div>

src/pages/posts/[slug].astro

@@ -1,6 +1,7 @@
 ---
 import ArticleSidebar from '@/components/ArticleSidebar.astro';
 import PostCopyrightCard from '@/components/PostCopyrightCard.astro';
+import PostSeries from '@/components/PostSeries.astro';
 import TwikooComments from '@/components/TwikooComments.astro';
 import BaseLayout from '@/layouts/BaseLayout.astro';
 import { render } from 'astro:content';
@@ -76,9 +77,68 @@ const relatedPosts = allPosts
   .filter((item) => item.slug !== post.slug)
   .filter((item) => item.categories.some((category) => post.categories.includes(category)))
   .slice(0, 8);
+const seriesPosts = post.series
+  ? allPosts
+      .filter((item) => item.series === post.series)
+      .sort((a, b) => {
+        const orderA = a.seriesOrder ?? Number.POSITIVE_INFINITY;
+        const orderB = b.seriesOrder ?? Number.POSITIVE_INFINITY;
+        if (orderA !== orderB) return orderA - orderB;
+        return a.date.valueOf() - b.date.valueOf();
+      })
+  : [];
+const canonicalUrl = new URL(post.href, siteConfig.site.url).href;
+const articleImage = new URL(post.cover ?? siteConfig.author.avatar, siteConfig.site.url).href;
+const articleJsonLd = {
+  '@context': 'https://schema.org',
+  '@type': 'BlogPosting',
+  headline: post.title,
+  description: post.summary,
+  image: [articleImage],
+  datePublished: post.date.toISOString(),
+  dateModified: (post.updated ?? post.date).toISOString(),
+  wordCount,
+  inLanguage: siteConfig.site.language,
+  mainEntityOfPage: { '@type': 'WebPage', '@id': canonicalUrl },
+  author: {
+    '@type': 'Person',
+    name: siteConfig.author.name,
+    url: siteConfig.author.github,
+  },
+  publisher: {
+    '@type': 'Person',
+    name: siteConfig.author.name,
+    image: new URL(siteConfig.author.avatar, siteConfig.site.url).href,
+  },
+  keywords: [...post.categories, ...post.tags].join(', '),
+  articleSection: post.categories[0],
+  isPartOf: post.series ? { '@type': 'CreativeWorkSeries', name: post.series } : undefined,
+};
 ---
 
-<BaseLayout title={post.title} description={post.summary}>
+<BaseLayout
+  title={post.title}
+  description={post.summary}
+  canonicalPath={post.href}
+  image={post.cover}
+  type="article"
+  publishedTime={post.date.toISOString()}
+  modifiedTime={(post.updated ?? post.date).toISOString()}
+  keywords={[...post.categories, ...post.tags]}
+  jsonLd={articleJsonLd}
+>
+  <div class="reading-progress" aria-hidden="true"><span data-reading-progress></span></div>
+  <aside class="reading-resume" data-reading-resume hidden aria-live="polite">
+    <div class="reading-resume-icon" aria-hidden="true"><i class="fa-solid fa-book-open"></i></div>
+    <div>
+      <strong>继续上次阅读？</strong>
+      <p>你上次读到了 <span data-reading-resume-percent>--</span>。</p>
+    </div>
+    <div class="reading-resume-actions">
+      <button type="button" data-reading-continue>继续阅读</button>
+      <button type="button" data-reading-restart>从头开始</button>
+    </div>
+  </aside>
   <section class="post-layout">
     <article class="article post-article">
       <header class={post.cover ? 'article-header article-header-cover' : 'article-header'}>
@@ -89,6 +149,7 @@ const relatedPosts = allPosts
           {post.cover ? (
             <div class="article-hero-meta" aria-label="文章信息">
               <span>发布于 {post.dateText}</span>
+              {post.updatedText && <span>更新于 {post.updatedText}</span>}
               {post.categories[0] && <a href={getCategoryHref(post.categories[0])}>{post.categories[0]}</a>}
               <span>总字数：{wordCountText}</span>
               <span>阅读时长：{readingMinutes} 分钟</span>
@@ -121,6 +182,7 @@ const relatedPosts = allPosts
           </div>
         </section>
       )}
+      {seriesPosts.length > 1 && <PostSeries currentPost={post} posts={seriesPosts} />}
       <aside
         class="butterfly-note butterfly-note--warning article-outdated-note"
         aria-label="文章时效性提示"
@@ -144,6 +206,91 @@ const relatedPosts = allPosts
   </section>
 </BaseLayout>
 
+<script define:vars={{ postSlug: post.slug }}>
+  (() => {
+    const article = document.querySelector('.post-article');
+    const progressBar = document.querySelector('[data-reading-progress]');
+    const resume = document.querySelector('[data-reading-resume]');
+    const resumePercent = document.querySelector('[data-reading-resume-percent]');
+    const continueButton = document.querySelector('[data-reading-continue]');
+    const restartButton = document.querySelector('[data-reading-restart]');
+    if (!article || !progressBar || !resume) return;
+
+    const storageKey = `reading-progress:${postSlug}`;
+    let saved = null;
+    let canPersist = true;
+    let frame = 0;
+
+    try {
+      saved = JSON.parse(localStorage.getItem(storageKey) || 'null');
+    } catch {
+      saved = null;
+    }
+
+    const articleMetrics = () => {
+      const top = article.getBoundingClientRect().top + window.scrollY;
+      const distance = Math.max(1, article.offsetHeight - window.innerHeight);
+      return { top, distance };
+    };
+
+    const getProgress = () => {
+      const { top, distance } = articleMetrics();
+      return Math.min(1, Math.max(0, (window.scrollY - top) / distance));
+    };
+
+    const persist = (progress) => {
+      if (!canPersist) return;
+      try {
+        if (progress >= 0.97) localStorage.removeItem(storageKey);
+        else if (progress >= 0.02) localStorage.setItem(storageKey, JSON.stringify({ progress, savedAt: Date.now() }));
+      } catch {
+        // Storage can be unavailable in strict privacy modes.
+      }
+    };
+
+    const update = () => {
+      frame = 0;
+      const progress = getProgress();
+      progressBar.style.transform = `scaleX(${progress})`;
+      persist(progress);
+    };
+
+    const requestUpdate = () => {
+      if (!frame) frame = window.requestAnimationFrame(update);
+    };
+
+    const closeResume = () => {
+      resume.hidden = true;
+      canPersist = true;
+    };
+
+    const savedIsFresh = saved && Date.now() - Number(saved.savedAt) < 90 * 86400000;
+    const savedProgress = Number(saved?.progress);
+    if (savedIsFresh && savedProgress >= 0.05 && savedProgress < 0.97) {
+      canPersist = false;
+      if (resumePercent) resumePercent.textContent = `${Math.round(savedProgress * 100)}%`;
+      window.setTimeout(() => { resume.hidden = false; }, 350);
+    }
+
+    continueButton?.addEventListener('click', () => {
+      closeResume();
+      const { top, distance } = articleMetrics();
+      window.scrollTo({ top: top + distance * savedProgress, behavior: 'smooth' });
+    });
+
+    restartButton?.addEventListener('click', () => {
+      try { localStorage.removeItem(storageKey); } catch {}
+      closeResume();
+      window.scrollTo({ top: Math.max(0, articleMetrics().top - 90), behavior: 'smooth' });
+    });
+
+    update();
+    window.addEventListener('scroll', requestUpdate, { passive: true });
+    window.addEventListener('resize', requestUpdate);
+    window.addEventListener('pagehide', () => persist(getProgress()));
+  })();
+</script>
+
 <script is:inline>
   (() => {
     document.querySelectorAll('.article-outdated-note[data-published-at]').forEach((note) => {

src/styles/site.css

@@ -12,3 +12,4 @@
 @import "./site/12-theme.css";
 @import "./site/13-responsive.css";
 @import "./site/14-animations.css";
+@import "./site/15-reading-series.css";

src/styles/site/15-reading-series.css

@@ -0,0 +1,153 @@
+.reading-progress {
+  position: fixed;
+  inset: 0 0 auto;
+  z-index: 40;
+  height: 4px;
+  overflow: hidden;
+  background: rgba(15, 118, 110, 0.12);
+  pointer-events: none;
+}
+
+.reading-progress span {
+  display: block;
+  width: 100%;
+  height: 100%;
+  transform: scaleX(0);
+  transform-origin: left center;
+  background: linear-gradient(90deg, #3eb8be, #0f766e);
+  box-shadow: 0 0 12px rgba(62, 184, 190, 0.56);
+  will-change: transform;
+}
+
+.reading-resume {
+  position: fixed;
+  right: max(18px, var(--page-gutter));
+  bottom: 24px;
+  z-index: 32;
+  display: grid;
+  grid-template-columns: 42px minmax(0, 1fr) auto;
+  align-items: center;
+  gap: 13px;
+  width: min(520px, calc(100vw - 32px));
+  border: 1px solid rgba(255, 255, 255, 0.66);
+  border-radius: 14px;
+  padding: 14px;
+  color: #27313a;
+  background: rgba(255, 253, 248, 0.92);
+  box-shadow: 0 22px 60px rgba(44, 55, 63, 0.24);
+  backdrop-filter: blur(20px) saturate(165%);
+  -webkit-backdrop-filter: blur(20px) saturate(165%);
+  animation: reading-resume-in 0.3s ease both;
+}
+
+.reading-resume[hidden] { display: none; }
+
+.reading-resume-icon {
+  display: grid;
+  width: 42px;
+  height: 42px;
+  place-items: center;
+  border-radius: 12px;
+  color: #fff;
+  background: #3eb8be;
+}
+
+.reading-resume strong,
+.reading-resume p { margin: 0; }
+.reading-resume p { color: var(--muted); font-size: 0.88rem; }
+
+.reading-resume-actions { display: flex; gap: 7px; }
+.reading-resume button {
+  border: 1px solid rgba(15, 118, 110, 0.18);
+  border-radius: 999px;
+  padding: 7px 11px;
+  color: var(--accent);
+  font: inherit;
+  font-size: 0.84rem;
+  font-weight: 800;
+  background: rgba(236, 253, 245, 0.72);
+  cursor: pointer;
+}
+.reading-resume button:first-child { color: #fff; background: #3eb8be; }
+
+.post-series {
+  margin: 0 0 30px;
+  overflow: hidden;
+  border: 1px solid rgba(15, 118, 110, 0.18);
+  border-radius: 12px;
+  background: rgba(236, 253, 245, 0.42);
+}
+
+.post-series-head {
+  display: flex;
+  align-items: end;
+  justify-content: space-between;
+  gap: 18px;
+  padding: 18px 20px;
+  border-bottom: 1px solid rgba(15, 118, 110, 0.14);
+}
+.post-series-head span { color: var(--accent); font-size: 0.72rem; font-weight: 900; letter-spacing: 0.1em; }
+.post-series-head h2 { margin: 2px 0 0; font-size: 1.25rem; }
+.post-series-head > strong { color: var(--muted); font-size: 0.86rem; white-space: nowrap; }
+
+.post-series-list {
+  display: grid;
+  max-height: 310px;
+  margin: 0;
+  overflow-y: auto;
+  padding: 8px;
+  list-style: none;
+}
+.post-series-list a {
+  display: grid;
+  grid-template-columns: 32px minmax(0, 1fr);
+  align-items: center;
+  gap: 10px;
+  border-radius: 8px;
+  padding: 8px 10px;
+}
+.post-series-list a:hover { background: rgba(62, 184, 190, 0.1); }
+.post-series-list li.is-current a { color: #fff; background: #3eb8be; }
+.post-series-list span { font-variant-numeric: tabular-nums; opacity: 0.7; }
+.post-series-list strong { overflow: hidden; font-size: 0.92rem; text-overflow: ellipsis; white-space: nowrap; }
+
+.post-series-nav {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  border-top: 1px solid rgba(15, 118, 110, 0.14);
+}
+.post-series-nav a { display: grid; gap: 2px; padding: 13px 18px; }
+.post-series-nav a:last-child { text-align: right; border-left: 1px solid rgba(15, 118, 110, 0.14); }
+.post-series-nav span { color: var(--muted); font-size: 0.76rem; }
+.post-series-nav strong { overflow: hidden; color: var(--accent); font-size: 0.88rem; text-overflow: ellipsis; white-space: nowrap; }
+
+:root[data-theme='dark'] .reading-resume,
+:root[data-theme='dark'] .post-series {
+  border-color: rgba(139, 224, 213, 0.22);
+  color: #edf7f5;
+  background: rgba(13, 23, 29, 0.92);
+}
+:root[data-theme='dark'] .post-series-list a:hover { background: rgba(139, 224, 213, 0.1); }
+
+@keyframes reading-resume-in {
+  from { opacity: 0; transform: translateY(16px); }
+  to { opacity: 1; transform: translateY(0); }
+}
+
+@media (max-width: 720px) {
+  .reading-resume {
+    right: 16px;
+    bottom: 16px;
+    grid-template-columns: 38px minmax(0, 1fr);
+  }
+  .reading-resume-icon { width: 38px; height: 38px; }
+  .reading-resume-actions { grid-column: 1 / -1; }
+  .reading-resume button { flex: 1; }
+  .post-series-head { align-items: start; flex-direction: column; gap: 6px; }
+  .post-series-nav { grid-template-columns: 1fr; }
+  .post-series-nav a:last-child { border-top: 1px solid rgba(15, 118, 110, 0.14); border-left: 0; }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .reading-resume { animation: none; }
+}