.blog-reading-column,
.article-breadcrumb,
.article-hero,
.prose,
.promo-block,
.related-section,
.post-navigation {
  width: min(var(--reading-width), calc(100% - (var(--gutter) * 2)));
  margin-inline: auto;
}

.blog-list-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(4.5rem, 9vw, 7.5rem) clamp(3.5rem, 7vw, 6rem);
  border-bottom: 1px solid var(--color-line);
  background-color: var(--color-page);
}

.blog-list-hero::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--color-line) 52%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--color-line) 52%, transparent) 1px, transparent 1px);
  background-size: 2.5rem 2.5rem;
  mask-image: linear-gradient(to bottom, transparent, var(--color-text), transparent);
  opacity: 0.52;
}

.blog-list-hero::after {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(50% - (var(--reading-width) / 2));
  width: 0.25rem;
  content: "";
  background: var(--gradient-warm);
}

.blog-list-hero .blog-reading-column {
  position: relative;
  z-index: 1;
}

.blog-kicker,
.blog-section-code {
  margin: 0 0 1rem;
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.blog-list-hero h1 {
  max-width: 14ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.blog-list-lead {
  max-width: 42rem;
  margin: 1.4rem 0 0;
  color: var(--color-text-soft);
  font-size: 1.05rem;
  line-height: 1.85;
}

.blog-index-section {
  padding-block: var(--section-space);
}

.blog-index-inner {
  width: min(var(--content-width), calc(100% - (var(--gutter) * 2)));
  margin-inline: auto;
}

.blog-index-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 2rem;
}

.blog-index-head h2 {
  margin: 0;
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.blog-filter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.blog-filter {
  min-height: 2.5rem;
  padding: 0.55rem 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  color: var(--color-text-soft);
  background: var(--color-page);
  font: 600 0.9rem/1 var(--font-body);
  cursor: pointer;
  transition:
    color 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    transform 180ms ease;
}

.blog-filter:hover {
  color: var(--color-accent-deep);
  border-color: var(--color-accent);
  transform: translateY(-0.1rem);
}

.blog-filter:focus-visible {
  outline: 0.18rem solid color-mix(in srgb, var(--color-accent) 28%, transparent);
  outline-offset: 0.15rem;
}

.blog-filter.is-active {
  color: var(--color-page);
  border-color: var(--color-accent);
  background: var(--gradient-warm);
  box-shadow: var(--shadow-button);
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.article-card {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 19rem;
  flex-direction: column;
  padding: clamp(1.35rem, 3vw, 2rem);
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-page);
  box-shadow: var(--shadow-card);
  opacity: 1;
  transform: none;
  transition:
    border-color 200ms ease,
    transform 200ms ease,
    box-shadow 200ms ease;
}

.article-card::before,
.related-card::before,
.post-nav-card::before {
  position: absolute;
  top: 0;
  right: 1.4rem;
  left: 1.4rem;
  height: 0.2rem;
  content: "";
  border-radius: 0 0 var(--radius-pill) var(--radius-pill);
  background: var(--gradient-warm);
  opacity: 0;
  transform: scaleX(0.25);
  transform-origin: left;
  transition:
    opacity 200ms ease,
    transform 200ms ease;
}

.article-card:hover {
  border-color: color-mix(in srgb, var(--color-accent) 58%, var(--color-line));
  box-shadow: var(--shadow-floating);
  transform: translateY(-0.25rem);
}

.article-card:hover::before,
.related-card:hover::before,
.post-nav-card:hover::before {
  opacity: 1;
  transform: scaleX(1);
}

.article-meta,
.related-card-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.article-meta time,
.related-card-meta time {
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
}

.article-meta .tag,
.related-card-meta .tag {
  padding: 0.38rem 0.7rem;
  border-radius: var(--radius-pill);
  color: var(--color-page);
  background: var(--color-accent-deep);
  font-family: var(--font-body);
  font-weight: 700;
}

.article-card h3 {
  margin: 1.35rem 0 0.8rem;
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  line-height: 1.42;
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.article-card h3 a {
  color: var(--color-text);
  text-decoration: none;
}

.article-card h3 a::after {
  position: absolute;
  inset: 0;
  content: "";
}

.article-card p {
  margin: 0 0 1.5rem;
  color: var(--color-text-soft);
  line-height: 1.8;
}

.article-more {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  width: max-content;
  margin-top: auto;
  color: var(--color-accent-deep);
  font-weight: 750;
  text-decoration: none;
}

.article-more svg {
  width: 1.1rem;
  height: 1.1rem;
  transition: transform 180ms ease;
}

.article-card:hover .article-more svg {
  transform: translateX(0.2rem);
}

.blog-empty {
  margin: 2rem 0 0;
  padding: 2rem;
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-md);
  color: var(--color-text-soft);
  text-align: center;
  background: var(--color-panel);
}

.article-breadcrumb {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  padding-top: 0.15rem;
}

.article-breadcrumb ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--color-text-soft);
  font-size: 0.88rem;
}

.article-breadcrumb li:not(:last-child)::after {
  margin-left: 0.55rem;
  color: var(--color-line);
  content: "/";
}

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

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

.article-hero {
  position: relative;
  margin-top: 1.5rem;
  padding-block: clamp(2rem, 5vw, 3.5rem);
  /* 2026-08-17 用户报障:hero 只有上下内边距,日期章/标题/摘要全贴死在左边线、
     日期章骑在渐变条上——卡片内容必须有左右呼吸位 */
  padding-inline: clamp(1.5rem, 4vw, 2.75rem);
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xl);
  background-color: var(--color-page);
  counter-reset: article-section;
}

.article-hero::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--color-line) 58%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--color-line) 58%, transparent) 1px, transparent 1px);
  background-size: 2rem 2rem;
  mask-image: linear-gradient(to left, var(--color-text), transparent 62%);
  opacity: 0.52;
}

.article-hero::after {
  position: absolute;
  /* 上下内缩+圆头:贴满全高会钻进 30px 大圆角,在弧线区被削成尖(2026-08-17 用户报障) */
  top: 1.5rem;
  bottom: 1.5rem;
  left: 0;
  width: 0.35rem;
  content: "";
  border-radius: 0 999px 999px 0;
  background: var(--gradient-warm);
}

.article-hero > * {
  position: relative;
  z-index: 1;
}

.article-hero-meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1.25rem;
}

.article-hero-meta > * {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.35rem 0.72rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  color: var(--color-text-soft);
  background: color-mix(in srgb, var(--color-page) 88%, transparent);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.article-hero-meta .tag {
  color: var(--color-page);
  border-color: var(--color-accent-deep);
  background: var(--color-accent-deep);
  font-family: var(--font-body);
  font-weight: 700;
}

.article-hero h1 {
  max-width: 21ch;
  margin: 0;
  font-size: clamp(2rem, 5vw, 2.6rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-wrap: pretty;
}

.article-summary {
  max-width: 45rem;
  margin: 1.25rem 0 0;
  color: var(--color-text-soft);
  font-size: 1.04rem;
  line-height: 1.85;
}

.prose {
  padding-top: clamp(2.5rem, 5vw, 4rem);
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.85;
  counter-reset: prose-section;
}

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

.prose p,
.prose ul,
.prose ol,
.prose blockquote,
.prose pre,
.prose .table-scroll,
.prose .data-table,
.prose .callout,
.prose .stat-grid,
.prose .check-list,
.prose .verdict {
  margin-top: 1.25rem;
  margin-bottom: 1.25rem;
}

.prose h2 {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  margin: 3.25rem 0 1.15rem;
  font-size: clamp(1.35rem, 3vw, 1.6rem);
  line-height: 1.35;
  letter-spacing: -0.015em;
  text-wrap: pretty;
  counter-increment: prose-section;
}

.prose h2::before {
  display: inline-grid;
  width: 2.35rem;
  min-width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--color-accent) 52%, var(--color-line));
  border-radius: var(--radius-sm);
  color: var(--color-accent-deep);
  background: color-mix(in srgb, var(--color-accent) 10%, var(--color-page));
  content: counter(prose-section, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1;
}

.prose h3 {
  margin: 2.2rem 0 0.8rem;
  font-size: clamp(1.14rem, 2vw, 1.3rem);
  line-height: 1.45;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.prose a {
  color: var(--color-accent-deep);
  text-decoration-color: color-mix(in srgb, var(--color-accent) 52%, transparent);
  text-underline-offset: 0.2em;
}

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

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

.prose li + li {
  margin-top: 0.55rem;
}

.prose blockquote {
  padding: 1.2rem 1.4rem;
  border-left: 0.25rem solid var(--color-gold);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-text-soft);
  background: var(--color-panel);
}

.table-scroll,
.prose > .data-table {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-page);
  overscroll-behavior-inline: contain;
}

.prose table,
.prose > .data-table {
  width: 100%;
  min-width: 40rem;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.prose th,
.prose td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
}

.prose thead th {
  color: var(--color-page);
  border-color: color-mix(in srgb, var(--color-text) 82%, var(--color-line));
  background: var(--color-text);
  font-weight: 750;
}

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

.prose tbody tr {
  transition: background-color 160ms ease;
}

.prose tbody tr:hover {
  background: color-mix(in srgb, var(--color-accent) 10%, var(--color-page));
}

.prose pre {
  position: relative;
  padding: 3.3rem 1.25rem 1.35rem;
  overflow-x: auto;
  border: 1px solid color-mix(in srgb, var(--color-text) 82%, var(--color-line));
  border-radius: var(--radius-md);
  color: var(--color-panel);
  background: var(--color-text);
  box-shadow: var(--shadow-card);
}

.prose pre::before {
  position: absolute;
  top: 1.1rem;
  left: 1.15rem;
  width: 0.65rem;
  height: 0.65rem;
  content: "";
  border-radius: var(--radius-pill);
  background: var(--color-error);
  box-shadow:
    1.1rem 0 0 var(--color-warning),
    2.2rem 0 0 var(--color-success);
}

.prose pre::after {
  position: absolute;
  top: 0.85rem;
  right: 1.1rem;
  color: color-mix(in srgb, var(--color-panel) 66%, transparent);
  content: "TERMINAL";
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

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

.prose :not(pre) > code {
  padding: 0.15rem 0.35rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xs);
  color: var(--color-accent-deep);
  background: var(--color-panel);
}

.callout {
  position: relative;
  padding: 1.2rem 1.3rem 1.2rem 3.8rem;
  border: 1px solid color-mix(in srgb, var(--color-accent) 35%, var(--color-line));
  border-left: 0.3rem solid var(--color-accent);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-accent) 8%, var(--color-page));
}

.callout::before {
  position: absolute;
  top: 1.1rem;
  left: 1.15rem;
  display: grid;
  width: 1.75rem;
  height: 1.75rem;
  place-items: center;
  border-radius: var(--radius-pill);
  color: var(--color-page);
  background: var(--color-accent);
  content: "i";
  font: 800 0.8rem/1 var(--font-mono);
}

.callout-warning {
  border-color: color-mix(in srgb, var(--color-warning) 38%, var(--color-line));
  border-left-color: var(--color-warning);
  background: color-mix(in srgb, var(--color-warning) 9%, var(--color-page));
}

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

.callout-success {
  border-color: color-mix(in srgb, var(--color-success) 38%, var(--color-line));
  border-left-color: var(--color-success);
  background: color-mix(in srgb, var(--color-success) 9%, var(--color-page));
}

.callout-success::before {
  background: var(--color-success);
  content: "OK";
  font-size: 0.58rem;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.stat-card {
  position: relative;
  min-width: 0;
  padding: 1.25rem;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--color-accent) 7%, var(--color-page));
}

.stat-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 0.25rem;
  content: "";
  background: var(--color-accent);
}

.stat-card:nth-child(even) {
  background: color-mix(in srgb, var(--color-gold) 10%, var(--color-page));
}

.stat-card:nth-child(even)::before {
  background: var(--color-gold);
}

.stat-card:nth-child(3n)::before {
  background: var(--color-accent-deep);
}

.stat-num {
  display: block;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 800;
  line-height: 1.25;
}

.stat-label {
  display: block;
  margin-top: 0.4rem;
  color: var(--color-text-soft);
  font-size: 0.88rem;
  line-height: 1.55;
}

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

.check-list li {
  padding: 0.9rem 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-page);
}

.check-list li + li {
  margin-top: 0.55rem;
}

.verdict {
  padding: 1.15rem 1.3rem;
  border: 1px solid var(--color-line);
  border-left: 0.32rem solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--color-panel);
}

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

.promo-block {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: clamp(3rem, 6vw, 5rem);
  padding: clamp(1.75rem, 5vw, 3rem);
  overflow: hidden;
  border: 1px solid var(--color-accent-deep);
  border-radius: var(--radius-xl);
  color: var(--color-page);
  background: var(--gradient-warm);
  box-shadow: var(--shadow-floating);
}

.promo-block::before {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 1.45rem,
    color-mix(in srgb, var(--color-page) 16%, transparent) 1.45rem,
    color-mix(in srgb, var(--color-page) 16%, transparent) 1.5rem
  );
}

.promo-block::after {
  position: absolute;
  top: -3rem;
  right: 12%;
  width: 9rem;
  height: 9rem;
  content: "";
  border: 1px solid color-mix(in srgb, var(--color-page) 32%, transparent);
  border-radius: var(--radius-pill);
}

.promo-block > * {
  position: relative;
  z-index: 1;
}

.promo-copy h2 {
  margin: 0;
  color: var(--color-page);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  text-wrap: pretty;
}

.promo-copy p {
  max-width: 38rem;
  margin: 0.65rem 0 0;
  color: var(--color-page);
  line-height: 1.75;
}

.promo-block .btn-primary {
  flex: 0 0 auto;
  color: var(--color-accent-deep);
  border-color: var(--color-page);
  background: var(--color-page);
  box-shadow: var(--shadow-button);
}

.promo-block .btn-secondary {
  flex: 0 0 auto;
  color: var(--color-page);
  border-color: color-mix(in srgb, var(--color-page) 76%, transparent);
  background: color-mix(in srgb, var(--color-page) 12%, transparent);
}

.related-section {
  padding-top: 2.5rem;
}

.related-section > h2 {
  margin: 0 0 1.2rem;
  font-size: clamp(1.4rem, 3vw, 1.75rem);
  letter-spacing: -0.015em;
  text-wrap: pretty;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
}

.related-card {
  position: relative;
  min-width: 0;
  padding: 1.2rem;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-page);
  transition:
    border-color 180ms ease,
    transform 180ms ease,
    box-shadow 180ms ease;
}

.related-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-0.2rem);
}

.related-card h3 {
  margin: 0.9rem 0 0.6rem;
  font-size: 1.05rem;
  line-height: 1.5;
  letter-spacing: -0.01em;
  text-wrap: pretty;
}

.related-card h3 a {
  color: var(--color-text);
  text-decoration: none;
}

.related-card h3 a::after {
  position: absolute;
  inset: 0;
  content: "";
}

.related-card p {
  display: -webkit-box;
  margin: 0;
  overflow: hidden;
  color: var(--color-text-soft);
  font-size: 0.9rem;
  line-height: 1.7;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.related-card-meta {
  gap: 0.4rem;
  font-size: 0.68rem;
}

.related-card-meta time,
.related-card-meta .tag {
  padding: 0.25rem 0.5rem;
}

.post-navigation {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  padding-top: 1.5rem;
  padding-bottom: 2rem;
}

.post-nav-card {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 7.5rem;
  flex-direction: column;
  justify-content: center;
  padding: 1.2rem;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  color: var(--color-text);
  background: var(--color-panel);
  text-decoration: none;
  transition:
    border-color 180ms ease,
    transform 180ms ease,
    background-color 180ms ease;
}

.post-nav-card:hover {
  border-color: var(--color-accent);
  background: var(--color-page);
  transform: translateY(-0.2rem);
}

.post-nav-next {
  grid-column: 2;
  text-align: right;
}

.post-nav-label {
  margin-bottom: 0.45rem;
  color: var(--color-accent-deep);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
}

.post-nav-card strong {
  font-size: 0.98rem;
  line-height: 1.55;
  text-wrap: pretty;
}

@media (max-width: 62rem) {
  .blog-list-hero::after {
    left: var(--gutter);
  }

  .blog-index-head {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .article-card {
    min-height: auto;
  }

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

@media (max-width: 44rem) {
  .blog-list-hero {
    padding-block: 3.75rem 3.25rem;
  }

  .blog-filter-list {
    width: 100%;
    flex-wrap: nowrap;
    padding-bottom: 0.35rem;
    overflow-x: auto;
  }

  .blog-filter {
    flex: 0 0 auto;
  }

  .article-hero {
    padding-block: 1.5rem;
  }

  .article-hero h1 {
    font-size: clamp(1.8rem, 8vw, 2.25rem);
  }

  .prose {
    padding-top: 2.25rem;
  }

  .prose h2 {
    margin-top: 2.6rem;
  }

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

  .promo-block {
    align-items: flex-start;
    flex-direction: column;
  }

  .promo-block .btn {
    width: 100%;
  }

  .post-navigation {
    grid-template-columns: 1fr;
  }

  .post-nav-next {
    grid-column: 1;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .blog-filter,
  .article-card,
  .article-more svg,
  .related-card,
  .post-nav-card,
  .article-card::before,
  .related-card::before,
  .post-nav-card::before {
    transition: none;
  }

  .blog-filter:hover,
  .article-card:hover,
  .related-card:hover,
  .post-nav-card:hover,
  .article-card:hover .article-more svg {
    transform: none;
  }
}