/* =============================================================
   VPNZM · 博客样式包
   列表页 blog/index.html 与文章页 blog/articles/*.html 共用
   颜色 / 圆角 / 字体一律引用 base.css 的设计令牌
   ============================================================= */

:root {
  --read-w: 54rem;
  --list-w: 64rem;
  --read-pad: max(var(--gutter), 1.5rem);
  --rule-grid: color-mix(in srgb, var(--text) 5%, transparent);
}

/* 中文关键词防断词:桌面整词不折,窄屏放开 */
.no-break {
  white-space: nowrap;
}

/* ---------- 01 · 版心 ---------- */

.article-crumbs,
.article-hero,
.reading-wrap,
.blog-promo,
#related-posts,
#post-nav {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--read-w) + 2 * var(--read-pad));
  margin-inline: auto;
  padding-inline: var(--read-pad);
}

/* ---------- 02 · 列表页 hero ---------- */

.blog-hero {
  box-sizing: border-box;
  width: calc(100% - 2 * var(--gutter));
  max-width: calc(var(--list-w) + 2 * var(--gutter));
  margin: clamp(1.25rem, 3vw, 2rem) auto 0;
  padding: clamp(1.75rem, 4vw, 2.75rem) var(--read-pad);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  background-color: var(--bg-panel);
  background-image:
    linear-gradient(to right, var(--rule-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--rule-grid) 1px, transparent 1px);
  background-size: 26px 26px;
  box-shadow: var(--shadow-card);
}

.blog-eyebrow {
  margin: 0 0 .75rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--accent);
}

.blog-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4.4vw, 3rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
  text-wrap: pretty;
  color: var(--text);
}

.blog-lead {
  margin: 1rem 0 0;
  max-width: 46rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-muted);
}

.blog-facts {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .75rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.blog-facts li {
  padding: .4rem .85rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--bg-panel-2);
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--text-muted);
}

.blog-facts b {
  font-weight: 700;
  color: var(--accent);
}

/* ---------- 03 · 列表页主体 ---------- */

.blog-list-sec {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--list-w) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: clamp(2rem, 4vw, 3rem) clamp(2.5rem, 5vw, 4rem);
}

.blog-list-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .5rem 1rem;
  margin-bottom: 1.15rem;
}

.blog-list-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  text-wrap: pretty;
  color: var(--text);
}

.post-count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--text-muted);
}

.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1.6rem;
}

.tag-btn {
  min-height: 40px;
  padding: .5rem .95rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--bg-panel);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .02em;
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease, background-color .18s ease;
}

.tag-btn:hover {
  color: var(--accent);
  border-color: var(--accent-line);
}

.tag-btn.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-panel);
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 19rem), 1fr));
  gap: 1.1rem;
}

.post-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .6rem;
  padding: 1.25rem 1.25rem 1.15rem;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--bg-panel);
  color: var(--text);
  text-decoration: none;
  box-shadow: var(--shadow-soft);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.post-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--grad-h1);
  opacity: 0;
  transition: opacity .18s ease;
}

.post-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-card);
}

.post-card:hover::before {
  opacity: 1;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem .7rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-muted);
}

.post-tag {
  padding: .2rem .6rem;
  border: 1px solid var(--accent-line);
  border-radius: var(--r-pill);
  background: var(--accent-ghost);
  color: var(--accent);
}

.post-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: -0.008em;
  text-wrap: pretty;
  color: var(--text);
}

.post-sum {
  margin: 0;
  font-size: .9063rem;
  line-height: 1.78;
  color: var(--text-muted);
}

.post-more {
  margin-top: auto;
  padding-top: .5rem;
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--accent);
}

.post-empty {
  margin: 1.5rem 0 0;
  padding: 1.25rem;
  border: 1px dashed var(--border);
  border-radius: var(--r-md);
  font-size: .9375rem;
  color: var(--text-muted);
  text-align: center;
}

/* ---------- 04 · 文章面包屑 ---------- */

.article-crumbs {
  margin-block: clamp(1.5rem, 3vw, 2.25rem) clamp(.85rem, 1.6vw, 1.25rem);
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--text-muted);
}

.article-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .35rem .5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.article-crumbs li {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin: 0;
}

.article-crumbs li + li::before {
  content: "/";
  color: var(--border);
}

.article-crumbs a {
  display: inline-block;
  padding-block: .25rem;
  color: var(--text-muted);
  text-decoration: none;
}

.article-crumbs a:hover {
  color: var(--accent);
}

.article-crumbs [aria-current="page"] {
  color: var(--text);
}

/* ---------- 05 · 文章 hero(图章角标卡) ---------- */

.article-hero {
  --stamp-size: 80px;
  position: relative;
  overflow: hidden;
  margin-block: 0 clamp(1.5rem, 3vw, 2.25rem);
  padding-block: clamp(1.75rem, 4vw, 2.5rem);
  padding-inline: var(--read-pad) calc(var(--read-pad) + var(--stamp-size) - 0.75rem);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background-color: var(--bg-panel);
  background-image:
    linear-gradient(to right, var(--rule-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--rule-grid) 1px, transparent 1px);
  background-size: 24px 24px;
  box-shadow: var(--shadow-soft);
}

.article-hero::after {
  content: "VPNZM";
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: var(--stamp-size);
  height: var(--stamp-size);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: .625rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-indent: .16em;
  color: var(--accent);
  border: 2px solid color-mix(in srgb, var(--accent) 55%, transparent);
  border-radius: 50%;
  box-shadow:
    inset 0 0 0 4px var(--bg-panel),
    inset 0 0 0 5px color-mix(in srgb, var(--accent) 32%, transparent);
  transform: rotate(-11deg);
  opacity: .92;
  pointer-events: none;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .45rem .65rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-muted);
}

.hero-meta .hm-tag {
  padding: .28rem .7rem;
  border-radius: var(--r-pill);
  background: var(--accent);
  color: var(--bg-panel);
  letter-spacing: .02em;
}

.hero-meta .hm-chip {
  padding: .26rem .65rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--bg-panel);
}

.article-hero h1 {
  margin: .85rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3.4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.24;
  letter-spacing: -0.015em;
  text-wrap: pretty;
  color: var(--text);
}

.article-hero .hero-lead {
  margin: .9rem 0 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-muted);
}

/* ---------- 06 · 正文排版 ---------- */

.reading-wrap {
  padding-block: clamp(1rem, 2vw, 1.5rem) clamp(1.5rem, 3vw, 2.25rem);
}

.prose {
  max-width: none;
  margin-inline: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text);
  overflow-wrap: break-word;
  counter-reset: h2c;
}

.prose > *:first-child {
  margin-top: 0;
}

.prose p {
  margin: 0 0 1.15em;
}

.prose strong {
  font-weight: 700;
  color: var(--text);
}

.prose a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: var(--accent-line);
  text-underline-offset: .18em;
}

.prose a:hover {
  text-decoration-color: var(--accent);
}

.prose h2 {
  counter-increment: h2c;
  margin: 2.2em 0 .85em;
  padding-top: .85em;
  border-top: 1px solid var(--border);
  font-family: var(--font-display);
  font-size: clamp(1.22rem, 2.1vw, 1.6rem);
  font-weight: 900;
  line-height: 1.4;
  letter-spacing: -0.012em;
  text-wrap: pretty;
  color: var(--text);
}

.prose h2::before {
  content: counter(h2c, decimal-leading-zero);
  display: inline-block;
  margin-right: .6em;
  padding: .08em .45em;
  border: 1px solid var(--accent-line);
  border-radius: var(--r-sm);
  background: var(--accent-ghost);
  font-family: var(--font-mono);
  font-size: .6em;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--accent);
  vertical-align: .14em;
}

.prose h3 {
  margin: 1.7em 0 .6em;
  font-family: var(--font-display);
  font-size: clamp(1.06rem, 1.5vw, 1.3rem);
  font-weight: 800;
  line-height: 1.5;
  letter-spacing: -0.006em;
  text-wrap: pretty;
  color: var(--text);
}

.prose ul,
.prose ol {
  margin: 0 0 1.2em;
  padding-left: 1.4em;
}

.prose li {
  margin-bottom: .45em;
}

.prose li::marker {
  color: var(--accent);
}

.prose hr {
  margin: 2em 0;
  border: 0;
  border-top: 1px solid var(--border);
}

.prose img {
  max-width: 100%;
  height: auto;
  border-radius: var(--r-md);
}

.prose blockquote {
  margin: 1.6em 0;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: var(--bg-panel-2);
  color: var(--text);
}

.prose blockquote p:last-child {
  margin-bottom: 0;
}

/* 表格:实色表头 + 斑马纹 + hover,窄屏横滑 */

.prose .table-scroll {
  max-width: 100%;
  margin: 1.6em 0;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-panel);
}

.prose table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  font-size: .9375rem;
  line-height: 1.7;
}

.prose thead th {
  padding: .75rem .9rem;
  background: var(--text);
  color: var(--bg-panel);
  font-family: var(--font-mono);
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .02em;
  text-align: left;
  white-space: nowrap;
}

.prose tbody td {
  padding: .7rem .9rem;
  border-top: 1px solid var(--border);
  vertical-align: top;
}

.prose tbody tr:nth-child(even) {
  background: color-mix(in srgb, var(--bg-panel-2) 60%, var(--bg-panel));
}

.prose tbody tr:hover {
  background: var(--accent-ghost);
}

@media (max-width: 860px) {
  .prose > table {
    display: block;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    overflow-x: auto;
  }
}

/* 代码:终端窗 */

.prose pre {
  position: relative;
  margin: 1.6em 0;
  padding: 2.3rem 1.15rem 1.15rem;
  overflow-x: auto;
  border-radius: var(--r-md);
  background: var(--text);
  color: var(--bg-panel);
  font-family: var(--font-mono);
  font-size: .8125rem;
  line-height: 1.7;
  box-shadow: var(--shadow-soft);
}

.prose pre::before {
  content: "";
  position: absolute;
  top: .95rem;
  left: 1.1rem;
  width: .5rem;
  height: .5rem;
  border-radius: 50%;
  background: var(--error);
  box-shadow: 1.05rem 0 0 var(--warn), 2.1rem 0 0 var(--success);
}

.prose pre code {
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font-size: inherit;
}

.prose :not(pre) > code {
  padding: .1em .4em;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--bg-panel-2);
  font-family: var(--font-mono);
  font-size: .875em;
  overflow-wrap: anywhere;
}

/* 提示块 */

.prose .callout {
  position: relative;
  margin: 1.6em 0;
  padding: 1rem 1.15rem 1rem 3.1rem;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--r-md);
  background: color-mix(in srgb, var(--accent) 7%, var(--bg-panel));
}

.prose .callout::before {
  content: "i";
  position: absolute;
  top: 1.05rem;
  left: 1rem;
  width: 1.4rem;
  height: 1.4rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg-panel);
  font-family: var(--font-mono);
  font-size: .75rem;
  font-weight: 700;
}

.prose .callout p:last-child {
  margin-bottom: 0;
}

.prose .callout.is-warn {
  border-left-color: var(--warn);
  background: color-mix(in srgb, var(--warn) 10%, var(--bg-panel));
}

.prose .callout.is-warn::before {
  content: "!";
  background: var(--warn);
}

.prose .callout.is-ok {
  border-left-color: var(--success);
  background: color-mix(in srgb, var(--success) 10%, var(--bg-panel));
}

.prose .callout.is-ok::before {
  content: "✓";
  background: var(--success);
}

/* 数据卡网格 */

.prose .stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
  gap: .85rem;
  margin: 1.6em 0;
}

.prose .stat-card {
  position: relative;
  padding: 1.15rem 1rem .95rem;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-panel);
  box-shadow: var(--shadow-soft);
}

.prose .stat-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--accent);
}

.prose .stat-card:nth-child(2n) {
  background: color-mix(in srgb, var(--bg-panel-2) 75%, var(--bg-panel));
}

.prose .stat-card:nth-child(2n)::before {
  background: var(--amber);
}

.prose .stat-card:nth-child(3n)::before {
  background: var(--rose);
}

.prose .stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.prose .stat-label {
  display: block;
  margin-top: .3rem;
  font-size: .8125rem;
  line-height: 1.55;
  color: var(--text-muted);
}

/* 勾叉清单:容器装饰,符号由正文 li 文本自带 */

.prose .check-list {
  display: grid;
  gap: .55rem;
  margin: 1.6em 0;
  padding: 0;
  list-style: none;
}

.prose .check-list li {
  margin: 0;
  padding: .8rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--bg-panel);
  line-height: 1.75;
}

/* 结论块 */

.prose .verdict {
  margin: 1.7em 0;
  padding: 1rem 1.15rem;
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: var(--bg-panel-2);
  font-size: .9688rem;
  line-height: 1.8;
}

.prose .verdict strong:first-child {
  color: var(--accent);
}

.prose .verdict p:last-child {
  margin-bottom: 0;
}

/* ---------- 07 · 文末推广卡 ---------- */

.blog-promo {
  margin-block: clamp(2rem, 4vw, 2.75rem) 0;
}

.promo-block {
  position: relative;
  overflow: hidden;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--bg-panel);
  box-shadow: var(--shadow-card);
}

.promo-block::after {
  content: "";
  position: absolute;
  right: -3.5rem;
  bottom: -4.5rem;
  width: 12rem;
  height: 12rem;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--bg-panel) 34%, transparent);
  pointer-events: none;
}

.pb-brand {
  margin: 0 0 .5rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: .02em;
}

.pb-text {
  position: relative;
  margin: 0 0 1.15rem;
  max-width: 40rem;
  font-size: .9688rem;
  line-height: 1.8;
  color: color-mix(in srgb, var(--bg-panel) 90%, transparent);
}

.pb-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.promo-block .btn-primary {
  background: var(--bg-panel);
  border-color: var(--bg-panel);
  color: var(--accent);
  box-shadow: none;
}

.promo-block .btn-primary:hover {
  background: color-mix(in srgb, var(--bg-panel) 88%, var(--accent));
  border-color: color-mix(in srgb, var(--bg-panel) 88%, var(--accent));
  color: var(--accent-dark);
}

.promo-block .btn-ghost,
.promo-block .btn-secondary {
  background: transparent;
  border-color: color-mix(in srgb, var(--bg-panel) 55%, transparent);
  color: var(--bg-panel);
}

.promo-block .btn-ghost:hover,
.promo-block .btn-secondary:hover {
  border-color: var(--bg-panel);
  color: var(--bg-panel);
}

/* ---------- 08 · 延伸阅读 ---------- */

#related-posts {
  padding-top: clamp(2rem, 4vw, 2.5rem);
  padding-bottom: 0;
}

#related-posts .related-title {
  margin: 0 0 1rem;
  padding-left: .8rem;
  border-left: 3px solid var(--accent);
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.8vw, 1.28rem);
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.01em;
  text-wrap: pretty;
  color: var(--text);
}

.rel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: .9rem;
}

.rel-card {
  display: block;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-top: 3px solid transparent;
  border-radius: var(--r-md);
  background: var(--bg-panel);
  color: var(--text);
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.rel-card:hover {
  transform: translateY(-2px);
  border-top-color: var(--accent);
  box-shadow: var(--shadow-soft);
}

.rel-tag {
  display: inline-block;
  margin-bottom: .5rem;
  padding: .15rem .55rem;
  border: 1px solid var(--accent-line);
  border-radius: var(--r-pill);
  background: var(--accent-ghost);
  font-family: var(--font-mono);
  font-size: .6875rem;
  color: var(--accent);
}

.rel-title {
  display: block;
  font-family: var(--font-display);
  font-size: .9688rem;
  font-weight: 800;
  line-height: 1.55;
  letter-spacing: -0.006em;
}

.rel-date {
  display: block;
  margin-top: .5rem;
  font-family: var(--font-mono);
  font-size: .75rem;
 ;
  color: var(--text-muted);
}

/* ---------- 09 · 上一篇 / 下一篇 ---------- */

#post-nav {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  padding-top: clamp(1.5rem, 3vw, 2rem);
  padding-bottom: clamp(2rem, 4vw, 2.25rem);
}

#post-nav .pn-card {
  flex: 1 1 16rem;
  display: block;
  padding: 1rem 1.15rem;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  background: var(--bg-panel);
  color: var(--text);
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

#post-nav .pn-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-soft);
}

#post-nav .pn-label {
  display: block;
  margin-bottom: .35rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--text-muted);
}

#post-nav .pn-title {
  display: block;
  font-family: var(--font-display);
  font-size: .9688rem;
  font-weight: 800;
  line-height: 1.55;
}

#post-nav .pn-next {
  text-align: right;
}

/* ---------- 10 · 文章页悬浮 CTA ---------- */

.float-cta {
  position: fixed;
  right: clamp(1rem, 3vw, 1.75rem);
  bottom: clamp(1rem, 3vw, 1.75rem);
  z-index: 60;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  min-height: 44px;
  padding: .75rem 1.15rem;
  border-radius: var(--r-pill);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: var(--bg-panel);
  font-family: var(--font-body);
  font-size: .9375rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: var(--shadow-float);
  transition: transform .18s ease, box-shadow .18s ease;
}

.float-cta:hover {
  transform: translateY(-2px);
}

.float-cta svg {
  flex: none;
}

/* ---------- 11 · 窄屏 ---------- */

@media (max-width: 640px) {
  .no-break {
    white-space: normal;
  }

  .blog-hero {
    width: 100%;
    padding-inline: var(--gutter);
    border-radius: 0;
    border-left: 0;
    border-right: 0;
    box-shadow: none;
  }

  .blog-hero h1 {
    font-size: clamp(1.7rem, 7.6vw, 2.1rem);
  }

  .article-hero {
    --stamp-size: 56px;
    border-radius: 0;
    border-left: 0;
    border-right: 0;
  }

  .article-hero::after {
    top: .75rem;
    right: .75rem;
    font-size: .5rem;
    letter-spacing: .1em;
    text-indent: .1em;
  }

  .article-hero h1 {
    font-size: clamp(1.5rem, 6.4vw, 1.9rem);
  }

  .prose h2 {
    margin-top: 1.9em;
  }

  #post-nav .pn-next {
    text-align: left;
  }

  .float-cta {
    right: .75rem;
    bottom: .75rem;
    padding: .6rem .9rem;
    font-size: .8125rem;
  }
}

/* ---------- 12 · 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .tag-btn,
  .post-card,
  .post-card::before,
  .rel-card,
  #post-nav .pn-card,
  .float-cta {
    transition: none;
  }

  .post-card:hover,
  .rel-card:hover,
  #post-nav .pn-card:hover,
  .float-cta:hover {
    transform: none;
  }
}