:root {
  --blog-reading: 56rem;
  --blog-gutter: clamp(1rem, 3vw, 2rem);
  --blog-title: clamp(2rem, 4vw, 2.6rem);
  --blog-list-title: clamp(2rem, 4.5vw, 3rem);
  --blog-h2: 1.6rem;
  --blog-h3: 1.3rem;
  --blog-body: 1rem;
  --blog-small: 0.875rem;
  --blog-leading: 1.85;
  --blog-tracking: -0.015em;
  --blog-rule: 0.2rem;
  --blog-focus: 0.18rem;
  --blog-modal-time: 150ms;
}

.blog-index,
.blog-article {
  color: var(--text);
  font-family: var(--font-body);
}

.blog-list-main {
  padding-block: 2rem 4rem;
}

.blog-list-hero {
  position: relative;
  isolation: isolate;
  padding: 3rem var(--blog-gutter);
  text-align: center;
}

.blog-list-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0 8% 15% 18%;
  border-radius: var(--r-card);
  background: linear-gradient(120deg, var(--panel-2), var(--clear));
}

.blog-kicker {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: var(--blog-small);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.02em;
}

.blog-list-hero h1 {
  margin: 0.75rem 0 1rem;
  font-size: var(--blog-list-title);
}

.blog-list-hero > p:not(.blog-kicker) {
  max-width: 40rem;
  margin-inline: auto;
  color: var(--muted);
  line-height: var(--blog-leading);
}

.blog-list-hero h1,
.article-hero h1,
.blog-article h1,
.blog-article h2,
.blog-article h3,
.blog-list-card h2 {
  display: block;
  text-wrap: pretty;
  letter-spacing: var(--blog-tracking);
  overflow-wrap: anywhere;
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
}

.blog-fact-chips,
.blog-filters,
.article-meta,
.blog-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.625rem;
}

.blog-fact-chips {
  justify-content: center;
  margin-top: 1.5rem;
}

.blog-fact-chips span,
.article-meta > *,
.blog-meta > * {
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--panel);
  color: var(--muted);
  font-size: var(--blog-small);
}

.article-meta .tag,
.blog-meta .tag {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

.blog-filters {
  padding-block: 1rem;
}

.blog-filters button {
  min-height: 2.75rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--panel);
  color: var(--accent);
  font: inherit;
  cursor: pointer;
}

.blog-filters button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

.blog-index :focus-visible,
.blog-article :focus-visible,
.blog-signup-modal :focus-visible {
  outline: var(--blog-focus) solid var(--accent);
  outline-offset: 4px;
}

.blog-status {
  color: var(--muted);
  font-size: var(--blog-small);
  margin-block: 0.5rem 1.5rem;
}

.blog-post-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.blog-list-card {
  min-width: 0;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--hi-edge);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-panel);
  transition: transform var(--speed-fast) var(--ease);
}

.blog-list-card:first-child {
  grid-column: span 2;
}

.blog-list-card:hover {
  transform: translateY(-2px);
}

.blog-list-card .article-art {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 9rem;
  padding: 1.5rem;
  display: flex;
  align-items: flex-end;
  background: linear-gradient(145deg, var(--accent-dark), var(--deep), var(--peri));
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: var(--weight-bold);
}

.blog-list-card .article-art::after {
  content: "";
  position: absolute;
  z-index: -1;
  width: 120%;
  height: 10rem;
  left: -10%;
  top: 55%;
  border: 1px solid var(--peri-hi);
  border-radius: var(--r-circle);
  background: linear-gradient(var(--peri), var(--clear));
}

.blog-list-card .article-body {
  padding: 1.5rem;
}

.blog-list-card .card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  color: var(--muted);
  font-size: var(--blog-small);
}

.blog-list-card h2 {
  margin: 1rem 0;
  font-size: var(--blog-h3);
  line-height: 1.55;
}

.blog-list-card h2 a {
  color: var(--text);
  text-decoration: none;
}

.blog-list-card h2 a:hover,
.blog-read-link:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.blog-list-card p {
  color: var(--muted);
  line-height: var(--blog-leading);
}

.blog-read-link {
  display: inline-block;
  margin-top: 0.75rem;
  color: var(--accent);
  font-weight: var(--weight-semibold);
}

.blog-empty {
  grid-column: 1 / -1;
  padding: 2rem;
  border: 1px dashed var(--border);
  border-radius: var(--r-card);
  color: var(--muted);
}

.blog-skip {
  position: absolute;
  z-index: 100;
  left: 1rem;
  top: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--accent);
  color: var(--white);
  border-radius: var(--r-card);
  transform: translateY(-160%);
}

.blog-skip:focus {
  transform: none;
}

/* A shared outer column keeps headings, prose and end matter aligned. */
.reading-wrap,
.article-hero,
.breadcrumbs,
.breadcrumb,
.blog-breadcrumb,
.blog-article > .promo-block,
.blog-article > #post-nav,
.blog-article > #related-posts {
  box-sizing: border-box;
  width: 100%;
  max-width: calc(var(--blog-reading) + 2 * var(--blog-gutter));
  margin-inline: auto;
  padding-inline: var(--blog-gutter);
}

.breadcrumbs,
.breadcrumb,
.blog-breadcrumb {
  margin-top: 1.5rem;
  margin-bottom: 1.25rem;
  color: var(--muted);
  font-size: var(--blog-small);
  line-height: 1.8;
  overflow-wrap: anywhere;
}

.breadcrumbs ol,
.breadcrumb ol,
.blog-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumbs li + li::before,
.breadcrumb li + li::before,
.blog-breadcrumb li + li::before {
  content: "›";
  margin-right: 0.5rem;
  color: var(--muted);
}

.article-hero {
  position: relative;
  isolation: isolate;
  padding-block: 2rem 1.5rem;
  padding-inline: max(1.5rem, var(--blog-gutter));
  margin-bottom: 1.5rem;
}

.article-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  right: var(--blog-gutter);
  bottom: 2.5rem;
  left: 12%;
  background: linear-gradient(125deg, var(--panel-2), var(--panel));
  border: 1px solid var(--hi-edge);
  border-radius: var(--r-card);
  box-shadow: var(--shadow-panel);
}

.article-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: 1rem;
  right: calc(var(--blog-gutter) + 1rem);
  width: 4rem;
  height: 0.25rem;
  border-radius: var(--r-pill);
  background: var(--accent);
}

.article-hero h1 {
  position: relative;
  margin-block: 1.25rem;
  font-size: var(--blog-title);
  line-height: 1.4;
  color: var(--text);
}

.article-hero .article-meta,
.article-hero .blog-meta,
.article-hero .article-summary,
.article-hero .article-lead,
.article-hero > p:not(.blog-kicker) {
  margin-left: clamp(0rem, 2vw, 1.5rem);
}

.article-summary,
.article-lead,
.article-hero > p:not(.blog-kicker) {
  color: var(--muted);
  line-height: var(--blog-leading);
  font-size: var(--blog-body);
}

.blog-article .prose,
[data-blog-body].prose {
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--blog-body);
  line-height: var(--blog-leading);
  counter-reset: blog-section;
  overflow-wrap: anywhere;
}

.blog-article .prose h2,
[data-blog-body].prose h2 {
  margin-block: 2rem 1rem;
  color: var(--accent);
  font-size: var(--blog-h2);
  line-height: 1.5;
  scroll-margin-top: var(--anchor-space);
}

.blog-article .prose h2::before,
[data-blog-body].prose h2::before {
  counter-increment: blog-section;
  content: counter(blog-section, decimal-leading-zero);
  display: inline-block;
  margin-right: 0.75rem;
  padding: 0.1rem 0.4rem;
  background: var(--panel-2);
  border-radius: var(--r-tile);
  font-family: var(--font-mono);
  font-size: var(--blog-small);
  vertical-align: middle;
}

.blog-article .prose > h2:first-child {
  margin-top: 0.75rem;
}

.blog-article .prose h3,
[data-blog-body].prose h3 {
  margin-block: 1.5rem 0.75rem;
  font-size: var(--blog-h3);
  line-height: 1.6;
}

.prose p,
.prose ul,
.prose ol {
  margin-block: 1rem;
}

.prose li + li {
  margin-top: 0.5rem;
}

.prose a {
  color: var(--accent);
  text-underline-offset: 0.2em;
}

.prose img,
.prose svg {
  max-width: 100%;
  height: auto;
}

.prose blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.5rem;
  border-left: var(--blog-rule) solid var(--accent);
  background: var(--panel);
  color: var(--muted);
  border-radius: var(--r-tile);
}

.blog-article .table-scroll,
[data-blog-body] .table-scroll {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  margin-block: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--r-card);
}

.prose table {
  border-collapse: collapse;
  width: 100%;
  font-size: var(--blog-small);
}

.prose th,
.prose td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.prose th {
  background: var(--accent);
  color: var(--white);
  font-weight: var(--weight-semibold);
}

.prose tbody tr {
  background: var(--panel);
}

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

.prose tbody tr:hover {
  background: var(--panel-2);
}

.prose pre {
  position: relative;
  max-width: 100%;
  overflow-x: auto;
  margin-block: 1.5rem;
  padding: 3rem 1.25rem 1.25rem;
  background: var(--accent-dark);
  color: var(--on-deep);
  border: 1px solid var(--on-deep-hair);
  border-radius: var(--r-card);
  line-height: 1.8;
  white-space: pre;
}

.prose pre::before {
  content: "配置 / 检查";
  position: absolute;
  top: 0.75rem;
  left: 1.25rem;
  color: var(--on-deep-muted);
  font: var(--blog-small) var(--font-mono);
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.prose :not(pre) > code {
  padding: 0.15em 0.4em;
  border-radius: var(--r-tile);
  background: var(--panel-2);
  color: var(--accent);
}

.callout,
.verdict {
  position: relative;
  margin-block: 1.5rem;
  padding: 1rem 1.25rem;
  border-left: var(--blog-rule) solid var(--accent);
  border-radius: var(--r-tile);
  background: var(--panel-2);
  color: var(--text);
}

.callout {
  padding-left: 3rem;
}

.callout::before {
  content: "i";
  position: absolute;
  left: 1rem;
  top: 1.1rem;
  width: 1.25rem;
  line-height: 1.25rem;
  text-align: center;
  border-radius: var(--r-circle);
  background: var(--accent);
  color: var(--white);
  font-family: var(--font-mono);
  font-weight: var(--weight-bold);
}

.callout--warning,
.callout.warning {
  border-color: var(--warn);
  background: color-mix(in srgb, var(--warn) 12%, var(--panel));
}

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

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

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

.callout > :first-child,
.verdict > :first-child {
  margin-top: 0;
}

.callout > :last-child,
.verdict > :last-child {
  margin-bottom: 0;
}

.verdict strong:first-child {
  color: var(--accent);
  font-weight: var(--weight-bold);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 12rem), 1fr));
  gap: 1rem;
  margin-block: 1.5rem;
}

.stat-card {
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-top: var(--blog-rule) solid var(--accent);
  border-radius: var(--r-card);
  background: var(--panel);
  box-shadow: var(--shadow-panel);
}

.stat-card:nth-child(even) {
  background: var(--panel-2);
  border-top-color: var(--muted);
}

.stat-num {
  display: block;
  color: var(--accent);
  font: var(--weight-bold) 1.8rem / 1.4 var(--font-mono);
}

.stat-label {
  display: block;
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: var(--blog-small);
}

.prose .check-list,
.check-list {
  padding: 0;
  list-style: none;
}

.check-list li {
  list-style: none;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-tile);
  background: var(--panel);
}

.promo-block {
  position: relative;
  isolation: isolate;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin-block: 2rem;
  padding: 1.75rem max(1.5rem, var(--blog-gutter));
  border: 1px solid var(--on-deep-hair);
  border-radius: var(--r-card);
  background: linear-gradient(125deg, var(--accent-dark), var(--deep), var(--peri));
  color: var(--white);
  box-shadow: var(--shadow-deep);
}

.promo-block p {
  color: var(--on-deep);
  line-height: var(--blog-leading);
}

.promo-brand {
  font-family: var(--font-display);
  font-size: var(--blog-h3);
  font-weight: var(--weight-bold);
}

.promo-block .btn {
  background: var(--white);
  color: var(--accent);
  border: 1px solid var(--white);
}

.promo-block .btn--line {
  background: var(--clear);
  color: var(--white);
  border-color: var(--on-deep);
}

.promo-block :focus-visible {
  outline-color: var(--white);
}

#related-posts {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

#related-posts > h2 {
  margin-block: 0 1rem;
  font-size: var(--blog-h2);
}

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

#post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding-top: 1rem;
  padding-bottom: 2rem;
}

.related-card,
.post-nav-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-top: var(--blog-rule) solid var(--border);
  border-radius: var(--r-card);
  background: var(--panel);
  color: var(--text);
  text-decoration: none;
  box-shadow: var(--shadow-panel);
  transition: border-color var(--speed-fast) var(--ease),
    transform var(--speed-fast) var(--ease);
}

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

.related-title {
  font-weight: var(--weight-semibold);
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.related-card .card-meta,
.post-nav-card .card-meta,
.related-card time,
.post-nav-card time {
  color: var(--muted);
  font-size: var(--blog-small);
}

.related-card time,
.post-nav-card time {
  margin-top: auto;
  font-family: var(--font-mono);
}

.blog-signup-modal {
  box-sizing: border-box;
  width: min(30rem, calc(100% - 2rem));
  max-height: calc(100dvh - 2rem);
  padding: 0;
  margin: auto;
  overflow-y: auto;
  border: 1px solid var(--hi-edge);
  border-radius: var(--r-card);
  background: var(--panel);
  color: var(--text);
  box-shadow: var(--shadow-float);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--blog-modal-time) var(--ease),
    transform var(--blog-modal-time) var(--ease);
}

.blog-signup-modal::backdrop {
  background: color-mix(in srgb, var(--accent-dark) 55%, var(--clear));
}

.blog-signup-modal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.blog-signup-modal.is-closing {
  opacity: 0;
  transform: translateY(8px);
}

.blog-signup-panel {
  position: relative;
  padding: 2.5rem 1.75rem 1.75rem;
}

.blog-signup-panel h2 {
  display: block;
  margin-block: 1rem;
  font-family: var(--font-display);
  font-size: var(--blog-h2);
  text-wrap: pretty;
}

.blog-signup-panel > p {
  line-height: var(--blog-leading);
}

.blog-signup-panel > p:not(.blog-kicker) {
  color: var(--muted);
}

.blog-signup-panel .btn {
  margin-top: 0.75rem;
}

.blog-signup-close {
  position: absolute;
  right: 0.5rem;
  top: 0.5rem;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--border);
  border-radius: var(--r-circle);
  background: var(--panel);
  color: var(--accent);
  font-family: var(--font-body);
  font-size: 1.5rem;
  cursor: pointer;
}

.float-cta {
  position: fixed;
  z-index: 30;
  right: 1.5rem;
  bottom: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  max-width: calc(100vw - 2rem);
  min-height: 2.75rem;
  padding: 0.75rem 1.25rem;
  border: 1px solid var(--hi-edge);
  border-radius: var(--r-pill);
  background: var(--accent);
  color: var(--white);
  box-shadow: var(--shadow-float);
  font-weight: var(--weight-semibold);
  text-decoration: none;
}

.float-cta svg {
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
}

@media (max-width: 1000px) {
  .blog-post-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}

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

  .prose th,
  .prose td {
    min-width: 9rem;
  }
}

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

  .blog-post-grid,
  #post-nav {
    grid-template-columns: 1fr;
  }

  .blog-list-card:first-child {
    grid-column: auto;
  }

  .blog-list-hero {
    padding-block: 2rem;
  }

  .article-hero {
    padding-block: 1.75rem 1.25rem;
  }

  .article-hero::before {
    left: var(--blog-gutter);
    bottom: 1rem;
  }

  .article-hero .article-meta,
  .article-hero .blog-meta,
  .article-hero .article-summary,
  .article-hero .article-lead,
  .article-hero > p:not(.blog-kicker) {
    margin-left: 0;
  }

  .float-cta {
    right: 1rem;
    bottom: max(0.75rem, env(safe-area-inset-bottom));
    padding: 0.625rem 1rem;
    font-size: var(--blog-small);
  }

  body:has(.float-cta) {
    padding-bottom: 5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-list-card,
  .related-card,
  .post-nav-card,
  .blog-signup-modal {
    transition: none;
  }

  .blog-list-card:hover,
  .related-card:hover,
  .post-nav-card:hover,
  .blog-signup-modal,
  .blog-signup-modal.is-closing {
    transform: none;
  }
}

/* fab-guard:start */
@supports (animation-timeline:scroll()){
  .float-cta{animation:fab-guard-in linear both;animation-timeline:scroll(root);animation-range:0 60vh}
}
@keyframes fab-guard-in{0%,40%{opacity:0;visibility:hidden}100%{opacity:1;visibility:visible}}
body:has(.float-cta) > footer:last-of-type{padding-bottom:calc(88px + env(safe-area-inset-bottom,0px))!important}
body:has(.float-cta):not(:has(> footer)){padding-bottom:calc(88px + env(safe-area-inset-bottom,0px))!important}
/* fab-guard:end */