.blog-main {
  padding-block: calc(var(--header-h) + 2.5rem) 3.5rem;
}

.blog-shell {
  width: 100%;
  max-width: var(--wrap-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 列表页刊头 ---------- */

.magazine-head {
  position: relative;
  padding-block: 0 1.5rem;
  padding-inline: 0;
  border-bottom: 1px solid var(--line-soft);
}

.magazine-head::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  height: 4px;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--indigo) 0%, var(--indigo) 52%, var(--sage) 52%, var(--sage) 100%);
}

.magazine-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  padding-block-start: 1.5rem;
}

.magazine-meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.magazine-meta span + span::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--line-strong);
  flex: 0 0 auto;
}

.blog-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--ink);
  text-wrap: pretty;
}

.blog-lead {
  max-width: 46rem;
  margin: 0.9rem 0 0;
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--ink-2);
}

.post-list-heading {
  margin: 2.25rem 0 1.1rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
}

/* ---------- 标签筛选 ---------- */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block-end: 1.5rem;
  padding-block-end: 1.25rem;
  border-bottom: 1px dashed var(--line);
}

.filter-btn {
  min-height: 34px;
  padding: 0.35rem 0.95rem;
  font-family: var(--font-body);
  font-size: 0;
  font-size: 0.83rem;
  line-height: 1.4;
  color: var(--ink-2);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  cursor: pointer;
  transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.filter-btn:hover {
  color: var(--indigo);
  border-color: var(--line-strong);
  background: var(--paper-deep);
}

.filter-btn.is-active {
  color: var(--white);
  background: var(--indigo);
  border-color: var(--indigo);
}

.filter-btn[hidden] {
  display: none;
}

/* ---------- 文章列表 ---------- */

.post-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--line-soft);
}

.post-row {
  display: grid;
  grid-template-columns: 9.5rem minmax(0, 1fr);
  gap: 1.5rem;
  padding-block: 1.5rem;
  padding-inline: 0.75rem;
  border-bottom: 1px solid var(--line-soft);
  text-decoration: none;
  color: inherit;
  transition: background 0.18s ease;
}

.post-row:hover,
.post-row:focus-visible {
  background: var(--paper-deep);
}

.post-row__aside {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  padding-block-start: 0.2rem;
}

.post-date {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--ink-2);
}

.post-tag,
.related-tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0.15rem 0.6rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--indigo);
  background: var(--indigo-06);
  border: 1px solid var(--indigo-16);
  border-radius: var(--r-pill);
  white-space: nowrap;
}

.post-tag[data-tag="security"],
.related-tag[data-tag="security"] {
  color: var(--forest);
  background: var(--sage-12);
  border-color: var(--sage-30);
}

.post-row__body h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  text-wrap: pretty;
}

.post-row__body p {
  margin: 0 0 0.65rem;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--ink-2);
}

.post-more {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--indigo);
}

.post-row:hover .post-more {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.empty-state {
  margin: 2rem 0;
  padding: 1.25rem;
  font-size: 0.92rem;
  color: var(--ink-2);
  background: var(--panel);
  border: 1px dashed var(--line-strong);
  border-radius: var(--r-md);
  text-align: center;
}

/* ---------- 文章页骨架 ---------- */

.article-page {
  padding-block: 0 3rem;
}

.reading-wrap {
  width: 100%;
  max-width: 56rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.breadcrumb {
  margin-block-start: 1.5rem;
  padding-block: 0.25rem 0;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.78rem;
  color: var(--ink-2);
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-width: 0;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--line-strong);
  font-family: var(--font-mono);
}

.breadcrumb a {
  color: var(--ink-2);
  text-decoration: none;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--indigo);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.breadcrumb [aria-current="page"] {
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 22rem;
}

/* ---------- 文章 Hero（magazine-rule） ---------- */

.article-hero {
  position: relative;
  width: 100%;
  max-width: 56rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: 1.75rem 1.5rem;
  border-bottom: 1px solid var(--line-soft);
}

.article-hero::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: var(--gutter);
  height: 4px;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--indigo) 0%, var(--indigo) 52%, var(--sage) 52%, var(--sage) 100%);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.75rem;
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-2);
}

.article-meta time {
  letter-spacing: 0.02em;
}

.article-meta .article-tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0.15rem 0.6rem;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--indigo);
  background: var(--indigo-06);
  border: 1px solid var(--indigo-16);
  border-radius: var(--r-pill);
  white-space: nowrap;
}

.article-meta .article-readtime {
  padding: 0.15rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--panel);
}

.article-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  font-weight: 600;
  line-height: 1.28;
  letter-spacing: -0.015em;
  color: var(--ink);
  text-wrap: pretty;
}

.article-summary {
  margin: 1rem 0 0;
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 正文排版 ---------- */

.prose {
  width: 100%;
  max-width: 56rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: 1.75rem 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink);
}

.prose > p,
.prose > ul,
.prose > ol,
.prose > blockquote,
.prose > .callout,
.prose > .stat-grid,
.prose > .check-list,
.prose > .verdict {
  margin-block: 0 1.15rem;
}

.prose h2 {
  position: relative;
  margin: 2.25rem 0 0.9rem;
  padding-block-end: 0.55rem;
  font-family: var(--font-display);
  font-size: clamp(1.28rem, 2.2vw, 1.6rem);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-wrap: pretty;
  border-bottom: 1px solid var(--line-soft);
  counter-increment: article-section;
}

.prose h2::before {
  content: counter(article-section, decimal-leading-zero);
  display: inline-block;
  margin-inline-end: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--sage);
  vertical-align: 0.12em;
}

.prose {
  counter-reset: article-section;
}

.prose h3 {
  position: relative;
  margin: 1.75rem 0 0.7rem;
  padding-inline-start: 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.08rem, 1.7vw, 1.3rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  text-wrap: pretty;
}

.prose h3::before {
  content: "";
  position: absolute;
  inset-block: 0.28em;
  inset-inline-start: 0;
  width: 3px;
  border-radius: var(--r-pill);
  background: var(--sage-45);
}

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

.prose ul,
.prose ol {
  padding-inline-start: 1.4rem;
}

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

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

.prose a {
  color: var(--indigo);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.prose strong {
  font-weight: 600;
  color: var(--ink);
}

.prose code {
  padding: 0.1rem 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--forest);
  background: var(--paper-deep);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-xs);
  overflow-wrap: anywhere;
}

.prose pre {
  position: relative;
  margin: 0 0 1.35rem;
  padding: 1.15rem 1.1rem 1.05rem;
  background: var(--forest);
  border: 1px solid var(--forest);
  border-radius: var(--r-md);
  overflow-x: auto;
  box-shadow: var(--sh-panel);
}

.prose pre::before {
  content: "";
  position: absolute;
  inset-block-start: 0.6rem;
  inset-inline-start: 0.75rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warn);
  box-shadow: 14px 0 0 var(--sage-45), 28px 0 0 var(--indigo-30);
}

.prose pre code {
  display: block;
  padding: 0.7rem 0 0;
  font-size: 0.84rem;
  line-height: 1.75;
  color: var(--paper);
  background: none;
  border: 0;
  border-radius: 0;
  overflow-wrap: normal;
  white-space: pre;
}

.prose blockquote {
  margin-inline: 0;
  padding: 0.9rem 1.1rem;
  color: var(--ink);
  background: var(--panel);
  border-inline-start: 3px solid var(--sage);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

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

/* ---------- 正文表格 ---------- */

.prose table,
.prose .data-table {
  width: 100%;
  min-width: 34rem;
  border-collapse: collapse;
  font-size: 0.9rem;
  line-height: 1.65;
}

.prose table caption,
.prose .data-table caption {
  caption-side: top;
  padding-block-end: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--ink-2);
  text-align: start;
}

.prose thead th,
.prose .data-table thead th {
  padding: 0.6rem 0.75rem;
  font-family: var(--font-display);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--panel);
  background: var(--forest);
  text-align: start;
  white-space: nowrap;
  border: 1px solid var(--forest);
}

.prose tbody td,
.prose .data-table tbody td {
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--line-soft);
  vertical-align: top;
}

.prose tbody tr:nth-child(even) td,
.prose .data-table tbody tr:nth-child(even) td {
  background: var(--paper-deep);
}

.prose tbody tr:hover td,
.prose .data-table tbody tr:hover td {
  background: var(--sage-08);
}

.prose .table-scroll {
  margin-block-end: 1.35rem;
}

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

/* ---------- 数据卡 / 勾叉清单 / 结论块 ---------- */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 0.85rem;
  margin-block: 0 1.35rem;
}

.stat-card {
  padding: 0.95rem 1rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-block-start: 3px solid var(--indigo);
  border-radius: var(--r-sm);
  box-shadow: var(--sh-panel);
}

.stat-card:nth-child(2n) {
  border-block-start-color: var(--sage);
}

.stat-card:nth-child(3n) {
  border-block-start-color: var(--forest);
}

.stat-num {
  margin: 0 0 0.3rem;
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--indigo);
  font-variant-numeric: tabular-nums;
}

.stat-card:nth-child(2n) .stat-num {
  color: var(--sage);
}

.stat-card:nth-child(3n) .stat-num {
  color: var(--forest);
}

.stat-label {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--ink-2);
}

.check-list {
  margin-block: 0 1.35rem;
  padding: 0.35rem 0;
  list-style: none;
}

.check-list li {
  margin-block: 0;
  padding: 0.6rem 0.85rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
}

.check-list li + li {
  margin-block-start: 0.5rem;
}

.verdict {
  padding: 0.9rem 1.1rem;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--ink);
  background: var(--indigo-04);
  border-inline-start: 3px solid var(--indigo);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

.verdict strong:first-child {
  display: block;
  margin-block-end: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--indigo);
}

.callout {
  position: relative;
  padding: 0.9rem 1.1rem 0.9rem 2.4rem;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line);
  border-inline-start: 3px solid var(--sage);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}

.callout::before {
  content: "!";
  position: absolute;
  inset-block-start: 0.95rem;
  inset-inline-start: 0.9rem;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--white);
  background: var(--sage);
  border-radius: 50%;
}

.callout p:last-child {
  margin-block-end: 0;
}

.callout--warn {
  border-inline-start-color: var(--warn);
  background: var(--paper-deep);
}

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

.callout--sage {
  border-inline-start-color: var(--success);
}

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

/* ---------- 文末推广卡 ---------- */

.promo-block {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem 2rem;
  width: 100%;
  max-width: 56rem;
  margin: 2.25rem auto 0;
  padding: 1.5rem 1.35rem;
  background: linear-gradient(135deg, var(--indigo) 0%, var(--indigo-dark) 62%, var(--forest) 100%);
  border-radius: var(--r-md);
  box-shadow: var(--sh-panel);
  color: var(--panel);
}

.promo-block h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.01em;
}

.promo-block p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--white-70);
}

.promo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.promo-block .btn-primary {
  background: var(--white);
  color: var(--indigo-dark);
  border-color: var(--white);
}

.promo-block .btn-primary:hover,
.promo-block .btn-primary:focus-visible {
  background: var(--panel-2);
  color: var(--indigo-dark);
  border-color: var(--panel-2);
}

.promo-block .btn-ghost {
  color: var(--white);
  background: transparent;
  border-color: var(--white-40);
}

.promo-block .btn-ghost:hover,
.promo-block .btn-ghost:focus-visible {
  color: var(--white);
  background: var(--white-12);
  border-color: var(--white);
}

/* ---------- 延伸阅读 / 上下篇 ---------- */

#related-posts {
  width: 100%;
  max-width: 56rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: 1.75rem 0;
}

.related-heading {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 0.9rem;
}

.related-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 1rem 1.05rem;
  text-decoration: none;
  color: inherit;
  background: var(--panel);
  border: 1px solid var(--line);
  border-block-start: 2px solid var(--line-soft);
  border-radius: var(--r-sm);
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.related-card:hover,
.related-card:focus-visible {
  border-block-start-color: var(--indigo);
  box-shadow: var(--sh-panel);
  transform: translateY(-2px);
}

.related-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  text-wrap: pretty;
}

.related-card p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--ink-2);
}

.related-date {
  margin-block-start: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink-2);
}

#post-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  width: 100%;
  max-width: 56rem;
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: 1.5rem 1.25rem;
  border-block-start: 1px solid var(--line-soft);
  margin-block-start: 1.75rem;
}

.post-nav-card {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  flex: 1 1 15rem;
  min-width: 0;
  padding: 0.85rem 1rem;
  text-decoration: none;
  color: inherit;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.post-nav-card:hover,
.post-nav-card:focus-visible {
  border-color: var(--line-strong);
  background: var(--paper-deep);
}

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

.post-nav-kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--indigo);
}

.post-nav-title {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink);
  text-wrap: pretty;
}

/* ---------- 窄屏 ---------- */

@media (max-width: 768px) {
  .blog-main {
    padding-block: calc(var(--header-h) + 1.75rem) 2.5rem;
  }

  .post-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.6rem;
    padding-inline: 0.5rem;
  }

  .post-row__aside {
    flex-direction: row;
    align-items: center;
    gap: 0.6rem;
  }

  .post-row__body h3 {
    font-size: 1.08rem;
  }

  .breadcrumb [aria-current="page"] {
    max-width: 12rem;
  }

  .article-hero {
    padding-block: 1.35rem 1.25rem;
  }

  .prose {
    padding-block-start: 1.35rem;
  }

  .promo-block {
    padding: 1.25rem 1.1rem;
  }

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

@media (max-width: 480px) {
  .blog-title {
    font-size: 1.75rem;
  }

  .article-hero h1 {
    font-size: 1.55rem;
  }

  .filter-btn {
    font-size: 0.8rem;
  }
}

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

  .related-card:hover,
  .related-card:focus-visible {
    transform: none;
  }
}