/* VPNMK 博客系统:列表页、文章页与正文富样式包 */

/* ---------- 列表页 ---------- */

.blog-hero {
  position: relative;
  overflow: hidden;
  padding-block: 0 2.6rem;
  background: linear-gradient(180deg, var(--warm-06), var(--clear) 72%);
}

.blog-hero::before {
  content: "";
  position: absolute;
  top: -12rem;
  right: -8rem;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  background: radial-gradient(circle, var(--warm-22), var(--clear) 68%);
  pointer-events: none;
}

.blog-hero .shell {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  margin: 1.6rem 0 1rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--accent-dark);
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: 0.35rem;
  color: var(--text-soft);
}

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

.blog-hero h1 {
  margin: 0.45rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.blog-hero .lede {
  max-width: 46rem;
  margin: 0;
  color: var(--text-muted);
  line-height: 1.75;
}

.blog-list-section {
  padding-block: 2.4rem 4rem;
}

.blog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1rem;
}

.filter-btn {
  min-height: 36px;
  padding: 0.42rem 0.9rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.filter-btn:hover {
  color: var(--accent-dark);
  border-color: var(--accent-32);
}

.filter-btn[aria-pressed="true"] {
  color: var(--bg-panel);
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.blog-count {
  margin: 0 0 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--text-soft);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.blog-card {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  min-width: 0;
  padding: 1.25rem;
  color: var(--text);
  text-decoration: none;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.blog-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-32);
  box-shadow: var(--shadow-float);
}

.blog-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.69rem;
  letter-spacing: 0.04em;
  color: var(--text-soft);
}

.blog-tag {
  padding: 0.18rem 0.5rem;
  font-family: var(--font-body);
  font-size: 0.7rem;
  letter-spacing: 0;
  color: var(--accent-dark);
  background: var(--accent-10);
  border-radius: var(--r-pill);
}

.blog-card-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  text-wrap: pretty;
  transition: color 0.2s ease;
}

.blog-card:hover .blog-card-title {
  color: var(--accent-dark);
}

.blog-card-summary {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--text-muted);
}

.blog-card-more {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: auto;
  padding-top: 0.35rem;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent-dark);
}

.blog-card-more svg {
  flex-shrink: 0;
}

.blog-empty {
  grid-column: 1 / -1;
  margin: 0;
  padding: 2.5rem 1rem;
  text-align: center;
  color: var(--text-muted);
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-md);
}

/* ---------- 文章页阅读列 ---------- */

.article-hero,
.reading-wrap {
  --read-pad: clamp(1.5rem, 4vw, 2rem);
  width: 100%;
  max-width: calc(54rem + var(--read-pad) + var(--read-pad));
  margin-inline: auto;
  padding-inline: var(--read-pad);
  box-sizing: border-box;
}

.article-hero {
  padding-block: 0 1.8rem;
  overflow: hidden;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-card);
}

.article-hero__bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-inline: calc(-1 * var(--read-pad));
  padding: 0.7rem var(--read-pad);
  background: linear-gradient(180deg, var(--bg-panel2), var(--bg-panel));
  border-bottom: 1px solid var(--border);
}

.win-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.win-dot--r {
  background: var(--error);
}

.win-dot--w {
  background: var(--warn);
}

.win-dot--g {
  background: var(--success);
}

.article-hero__file {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--text-soft);
}

.article-hero__body {
  padding-top: 1.4rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.article-tag {
  padding: 0.24rem 0.62rem;
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0;
  color: var(--bg-panel);
  background: var(--accent);
  border-radius: var(--r-pill);
}

.article-meta time,
.article-meta .read-time {
  padding: 0.22rem 0.6rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
}

.article-hero h1 {
  margin: 0.9rem 0 0.7rem;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.article-lede {
  margin: 0;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text-muted);
}

/* ---------- 正文富样式包 ---------- */

.prose {
  counter-reset: article-section;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
  overflow-wrap: break-word;
}

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

.prose h2 {
  counter-increment: article-section;
  margin: 2.6rem 0 0.9rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.prose h2::before {
  content: counter(article-section, decimal-leading-zero);
  display: inline-block;
  margin-right: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.68em;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
  transform: translateY(-0.08em);
}

.prose h3 {
  margin: 1.9rem 0 0.7rem;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.7vw, 1.3rem);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.prose > h2:first-child,
.prose > h3:first-child {
  margin-top: 0;
}

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

.prose li {
  margin-bottom: 0.4rem;
}

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

.prose a {
  color: var(--accent-dark);
  text-decoration: underline;
  text-decoration-color: var(--accent-32);
  text-underline-offset: 0.18em;
}

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

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

.prose .hl {
  color: var(--accent-dark);
  font-weight: 600;
}

.prose blockquote {
  margin: 1.6rem 0;
  padding: 1rem 1.2rem;
  color: var(--text-muted);
  background: var(--bg-panel3);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

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

.prose :not(pre) > code {
  padding: 0.1em 0.35em;
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--bg-panel2);
  border: 1px solid var(--border);
  border-radius: var(--r-xs);
  overflow-wrap: anywhere;
}

.prose pre {
  margin: 1.6rem 0;
  padding: 1.1rem 1.2rem;
  overflow-x: auto;
  color: var(--bg-panel);
  background: var(--text);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-inset);
}

.prose pre::before {
  content: "";
  display: block;
  height: 10px;
  margin-bottom: 0.8rem;
  background:
    radial-gradient(circle at 5px 5px, var(--error) 0 4px, var(--clear) 4.5px),
    radial-gradient(circle at 20px 5px, var(--warn) 0 4px, var(--clear) 4.5px),
    radial-gradient(circle at 35px 5px, var(--success) 0 4px, var(--clear) 4.5px);
  background-repeat: no-repeat;
}

.prose pre code {
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  line-height: 1.7;
  color: inherit;
  background: none;
  border: 0;
}

.prose table {
  width: 100%;
  margin: 1.6rem 0;
  font-size: 0.92rem;
  border-collapse: collapse;
}

.prose thead th {
  padding: 0.6rem 0.8rem;
  font-weight: 600;
  text-align: left;
  color: var(--bg-panel);
  background: var(--text);
}

.prose tbody td {
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--border);
}

.prose tbody tr:nth-child(even) {
  background: var(--bg-panel3);
}

.prose tbody tr:hover {
  background: var(--accent-07);
}

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

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

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 0.9rem;
  margin: 1.6rem 0;
}

.stat-card {
  padding: 1rem 1.1rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: var(--r-md);
}

.stat-card:nth-child(2n) {
  background: var(--bg-panel3);
  border-top-color: var(--violet);
}

.stat-card:nth-child(3n) {
  border-top-color: var(--amber);
}

.stat-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--accent-dark);
}

.stat-label {
  margin: 0.25rem 0 0;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.check-list {
  display: grid;
  gap: 0.55rem;
  margin: 1.4rem 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  padding: 0.7rem 0.9rem;
  line-height: 1.7;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
}

.verdict {
  margin: 1.6rem 0;
  padding: 1rem 1.2rem;
  background: var(--bg-panel3);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

.verdict strong {
  color: var(--accent-dark);
}

.callout {
  position: relative;
  margin: 1.5rem 0;
  padding: 1rem 1.1rem 1rem 3rem;
  background: var(--accent-07);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-sm);
}

.callout::before {
  content: "i";
  position: absolute;
  left: 1rem;
  top: 1rem;
  width: 1.25rem;
  height: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.25rem;
  text-align: center;
  color: var(--bg-panel);
  background: var(--accent);
  border-radius: 50%;
}

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

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

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

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

/* ---------- 文末推广卡 ---------- */

.promo-block {
  margin-top: 2.4rem;
  padding: 1.6rem;
  color: var(--bg-panel);
  background:
    radial-gradient(circle at 88% 12%, var(--warm-22), var(--clear) 42%),
    linear-gradient(135deg, var(--accent-dark), var(--accent) 62%, var(--accent-warm));
  border: 1px solid var(--accent-dark);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-float);
}

.promo-block .promo-brand {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--bg-panel);
}

.promo-block .promo-line {
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--bg-panel);
}

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

.promo-block .btn-primary:hover {
  background: var(--bg-panel3);
}

/* ---------- 延伸阅读与上下篇 ---------- */

#related-posts,
#post-nav {
  --read-pad: clamp(1.5rem, 4vw, 2rem);
  width: 100%;
  max-width: calc(54rem + var(--read-pad) + var(--read-pad));
  margin-inline: auto;
  padding-inline: var(--read-pad);
  box-sizing: border-box;
}

.reading-wrap #related-posts,
.reading-wrap #post-nav {
  max-width: none;
  padding-inline: 0;
}

#related-posts {
  margin-top: 2.2rem;
}

#post-nav {
  margin-top: 2rem;
  padding-bottom: 1.6rem;
}

.related-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.related-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-width: 0;
  padding: 1rem;
  color: var(--text);
  text-decoration: none;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-top: 3px solid var(--clear);
  border-radius: var(--r-md);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.related-card:hover {
  transform: translateY(-2px);
  border-top-color: var(--accent);
  border-color: var(--accent-32);
}

.related-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  color: var(--text-soft);
}

.related-tag {
  padding: 0.16rem 0.48rem;
  font-family: var(--font-body);
  font-size: 0.68rem;
  letter-spacing: 0;
  color: var(--accent-dark);
  background: var(--accent-10);
  border-radius: var(--r-pill);
}

.related-name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

#post-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1rem;
}

.post-nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
  padding: 1rem 1.1rem;
  color: var(--text);
  text-decoration: none;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.post-nav-link:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.post-nav-kicker {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--accent-dark);
}

.post-nav-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.5;
  overflow-wrap: break-word;
}

.post-nav-link--next {
  align-items: flex-end;
  text-align: right;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1080px) {
  .blog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

@media (max-width: 760px) {
  .blog-grid,
  .related-grid,
  #post-nav {
    grid-template-columns: minmax(0, 1fr);
  }

  .post-nav-link--next {
    align-items: flex-start;
    text-align: left;
  }

  .article-hero {
    border-radius: var(--r-md);
  }

  .promo-block {
    padding: 1.3rem;
  }
}

@media (max-width: 640px) {
  .blog-hero h1 {
    font-size: clamp(1.7rem, 8vw, 2.2rem);
  }

  .blog-hero .lede {
    font-size: 0.95rem;
  }

  .filter-btn {

    padding: 0.38rem 0.72rem;
    font-size: 0.8rem;
  }

  .blog-card {
    padding: 1.05rem;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .filter-btn,
  .blog-card,
  .related-card,
  .post-nav-link,
  .blog-card-title {
    transition: none;
  }

  .blog-card:hover,
  .related-card:hover,
  .post-nav-link:hover {
    transform: none;
  }
}