阅读进度 + 继续阅读 + 文章系列 + 完整 SEO

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; }
+}