/*
Theme Name: Limitless Blocks
Theme URI: https://limitlessblocks.org/
Description: 与主站 limitlessblocks.org 设计系统一致的 Typecho 主题。奶油底色 + ochre/grass/dirt 配色，Fredoka + Noto Sans SC 字体，Remix 图标，玻璃拟态卡片。
Version: 1.1.0
Author: 方块无界管理团队
Author URI: https://limitlessblocks.org/
*/

/* ── Reset & Variables (与主站共享) ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --cream:       #F5EFE3;
  --cream-light: #FAF7F0;
  --cream-glass: rgba(245,239,227,0.72);
  --ink:         #2A1F18;
  --ink-soft:    #5C4A3E;
  --ink-faint:   rgba(42,31,24,0.10);
  --ochre:       #C97B3D;
  --ochre-dark:  #A0651E;
  --ochre-light: rgba(201,123,61,0.12);
  --grass:       #5C8A3A;
  --grass-light: rgba(92,138,58,0.12);
  --dirt:        #6B4F2A;
  --dirt-light:  rgba(107,79,42,0.10);
  --border:      rgba(42,31,24,0.18);
  --shadow:      0 4px 24px rgba(42,31,24,0.10);
  --shadow-sm:   0 2px 12px rgba(42,31,24,0.08);
  --shadow-lg:   0 8px 40px rgba(42,31,24,0.14);
  --radius-sm:   8px;
  --radius-md:   14px;
  --radius-lg:   20px;
  --font-display:'Fredoka', 'Noto Sans SC', sans-serif;
  --font-body:   'Noto Sans SC', system-ui, sans-serif;
  --font-mono:   ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --max-w:       1100px;
  --max-w-prose: 760px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--cream);
  color: var(--ink);
  line-height: 1.7;
  overflow-x: hidden;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--ochre); text-decoration: none; transition: color .15s; }
a:hover { color: var(--ochre-dark); text-decoration: underline; text-underline-offset: 3px; }

img { display: block; max-width: 100%; height: auto; }
button { font-family: inherit; cursor: pointer; }

/* ── Grain Texture Overlay (与主站一致) ── */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
}

/* ── Layout ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }
.container-prose { max-width: var(--max-w-prose); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 4rem 0; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .65rem 1.4rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: .95rem; font-weight: 600;
  border: 1.5px solid transparent;
  transition: all .2s ease;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary { background: var(--ochre); color: #fff; border-color: var(--ochre); }
.btn-primary:hover {
  background: var(--ochre-dark); border-color: var(--ochre-dark);
  transform: translateY(-2px); box-shadow: 0 6px 20px rgba(201,123,61,.35);
  text-decoration: none; color: #fff;
}
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--border); }
.btn-ghost:hover { background: var(--ink-faint); border-color: var(--ink-soft); color: var(--ink); text-decoration: none; }
.btn i { font-size: 1.1rem; }

/* ── Topbar (与主站一致) ── */
.topbar {
  position: sticky; top: 0; z-index: 100;
  background: var(--cream-glass);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1.5px solid var(--border);
}
.topbar-inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem;
  height: 64px; display: flex; align-items: center; gap: 1.5rem;
}
.brand { display: flex; align-items: center; gap: .6rem; flex-shrink: 0; line-height: 1.15; }
.brand img { width: 38px; height: 38px; border-radius: 8px; border: 1.5px solid var(--border); object-fit: cover; }
.brand span { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; color: var(--ink); letter-spacing: -0.01em; }
.brand em { font-style: normal; font-weight: 500; color: var(--ink-soft); font-size: .85rem; letter-spacing: 0.02em; display: inline-block; margin-left: 1px; }
.nav { display: flex; align-items: center; gap: .25rem; margin-left: auto; }
.nav a {
  padding: .4rem .75rem; border-radius: var(--radius-sm);
  font-size: .9rem; font-weight: 500; color: var(--ink-soft);
  transition: all .2s; text-decoration: none;
}
.nav a:hover { background: var(--ink-faint); color: var(--ink); }
.nav a.active { background: var(--ink-faint); color: var(--ink); }
.nav-cta { margin-left: .5rem; padding: .5rem 1.1rem; font-size: .88rem; }
.nav-toggle {
  display: none; background: none; border: none;
  font-size: 1.4rem; color: var(--ink);
  padding: .25rem; border-radius: var(--radius-sm); margin-left: auto;
}
.nav-toggle:hover { background: var(--ink-faint); }

@media (max-width: 768px) {
  .nav, .nav-cta { display: none; }
  .nav-toggle { display: flex; margin-left: auto; }
  .topbar-inner { gap: 1rem; }
  body.nav-open .nav,
  body.nav-open .nav-cta {
    display: flex; flex-direction: column;
    position: fixed; top: 64px; left: 0; right: 0;
    background: var(--cream-glass);
    backdrop-filter: blur(20px);
    border-bottom: 1.5px solid var(--border);
    padding: 1rem; z-index: 99; align-items: flex-start;
  }
  body.nav-open .nav a { width: 100%; color: var(--ink); }
}

/* ── Page Lead (轻量标题区) ── */
.page-lead { padding: 3rem 0 1.5rem; background: var(--cream); }
.page-lead-inner { max-width: 760px; margin: 0 auto; text-align: center; }
.page-lead h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 2.6rem);
  font-weight: 700; color: var(--ink);
  letter-spacing: -.01em; margin-bottom: .6rem;
}
.page-lead p {
  color: var(--ink-soft);
  font-size: 1rem; line-height: 1.7;
  max-width: 580px; margin: 0 auto;
}

/* ── Category Bar (分类筛选) ── */
.category-bar {
  padding: 0.5rem 0 1.25rem;
  background: var(--cream);
}
.category-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem;
  max-width: 760px;
  margin: 0 auto;
}
.category-chip {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.65rem 1.35rem;
  border-radius: 999px;
  background: var(--cream-glass);
  border: 1.5px solid var(--border);
  color: var(--ink-soft);
  text-decoration: none;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}
.category-chip i {
  font-size: 1.1rem;
  line-height: 1;
  color: var(--ochre);
  transition: color 0.2s ease;
}
.category-chip:hover {
  background: #fff;
  border-color: var(--ochre);
  color: var(--ochre-dark);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.category-chip:hover i {
  color: var(--ochre-dark);
}
.category-chip.active {
  background: var(--ochre);
  border-color: var(--ochre);
  color: #fff;
  box-shadow: 0 6px 20px rgba(201,123,61,.35);
}
.category-chip.active i {
  color: #fff;
}
.category-chip.active:hover {
  background: var(--ochre-dark);
  border-color: var(--ochre-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(160,101,30,.42);
}
@media (max-width: 600px) {
  .category-chips { gap: 0.5rem; }
  .category-chip { padding: 0.55rem 1.05rem; font-size: 0.88rem; }
  .category-chip i { font-size: 1rem; }
}

/* ── Article Card (博客列表) — 桌面端放大 ── */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1.75rem;
}
.post-card {
  background: var(--cream-glass);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.2rem 2rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  display: flex; flex-direction: column;
}
.post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(201,123,61,.35);
}
.post-card-meta {
  display: flex; align-items: center; gap: .8rem;
  font-size: .82rem;
  color: var(--ink-soft);
  margin-bottom: .9rem;
}
.post-card-meta a { color: var(--ink-soft); }
.post-card-meta a:hover { color: var(--ochre); text-decoration: none; }
.post-card-meta time { color: var(--ink-soft); }
.post-card-meta .dot { color: var(--ink-faint); }
.post-card h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: .9rem;
  color: var(--ink);
}
.post-card h2 a { color: inherit; text-decoration: none; }
.post-card h2 a:hover { color: var(--ochre); }
.post-card .excerpt {
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 1.4rem;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.post-card .read-more {
  font-family: var(--font-display);
  font-size: .88rem;
  font-weight: 600;
  color: var(--ochre);
  display: inline-flex;
  align-items: center;
  gap: .3rem;
}
.post-card .read-more:hover { color: var(--ochre-dark); text-decoration: none; }

/* ── Pagination ── */
.pagination {
  display: flex; justify-content: center; align-items: center;
  gap: .5rem;
  margin: 3rem auto 0;
  flex-wrap: wrap;
}
.pagination a, .pagination span {
  padding: .5rem .9rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: .9rem;
  font-weight: 600;
  border: 1.5px solid var(--border);
  color: var(--ink);
  background: var(--cream-glass);
  text-decoration: none;
  transition: all .15s;
}
.pagination a:hover { background: var(--ink-faint); border-color: var(--ink-soft); text-decoration: none; }
.pagination .current { background: var(--ochre); color: #fff; border-color: var(--ochre); }
.pagination .gap { border: none; background: transparent; }

/* ── Article Topnav (顶部返回链接) ── */
.article-topnav {
  padding-top: 2rem;
  padding-bottom: 0;
  max-width: var(--max-w-prose);
}
.back-link.top { margin-bottom: 0; }

/* ── Article Page (单篇文章) ── */
.article { padding: 1.5rem 0 4rem; background: var(--cream); }
.article-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 2.5rem;
  padding: 0 1.5rem;
}
.article-meta {
  display: flex; justify-content: center; align-items: center;
  gap: .8rem;
  font-size: .85rem;
  color: var(--ink-soft);
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.article-meta .category {
  background: var(--ochre-light);
  color: var(--ochre-dark);
  padding: .2rem .65rem;
  border-radius: 999px;
  font-weight: 600;
  font-family: var(--font-display);
}
.article-meta .category:hover { background: var(--ochre); color: #fff; text-decoration: none; }
.article-meta time { color: var(--ink-soft); }
.article-meta .dot { color: var(--ink-faint); }
.article h1.article-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4.5vw, 2.4rem);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -.01em;
  line-height: 1.25;
  margin-bottom: .8rem;
}

.article-body {
  background: var(--cream-glass);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 2.5rem 2.8rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-sm);
}

/* ── Article Body Typography (统一表格/字体/列表等元素) ── */
.article-body { font-size: 1.02rem; line-height: 1.85; color: var(--ink); }
.article-body > * + * { margin-top: 1.1rem; }
.article-body h2 {
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 700; color: var(--ink);
  margin-top: 2.2rem; margin-bottom: .8rem;
  padding-bottom: .4rem;
  border-bottom: 1.5px solid var(--border);
}
.article-body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem; font-weight: 700; color: var(--ink);
  margin-top: 1.8rem; margin-bottom: .6rem;
}
.article-body h4 {
  font-family: var(--font-display);
  font-size: 1.05rem; font-weight: 600; color: var(--ink);
  margin-top: 1.5rem; margin-bottom: .5rem;
}
.article-body p { color: var(--ink); }
.article-body strong { color: var(--ink); font-weight: 700; }
.article-body em { color: var(--ink-soft); }
.article-body ul, .article-body ol {
  padding-left: 1.5rem;
  color: var(--ink);
}
.article-body ul li, .article-body ol li { margin-bottom: .4rem; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body ul li::marker { color: var(--ochre); }
.article-body ol li::marker { color: var(--ochre); font-weight: 700; }

.article-body blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.4rem;
  border-left: 4px solid var(--ochre);
  background: var(--cream-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--ink-soft);
  font-style: italic;
}
.article-body blockquote p { color: inherit; }

.article-body code {
  font-family: var(--font-mono);
  font-size: .88em;
  background: var(--ink-faint);
  color: var(--ochre-dark);
  padding: .15em .45em;
  border-radius: 4px;
  border: 1px solid var(--border);
}
.article-body pre {
  margin: 1.5rem 0;
  padding: 1.2rem 1.4rem;
  background: var(--ink);
  color: rgba(255,255,255,.9);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-size: .9rem;
  line-height: 1.6;
}
.article-body pre code {
  background: none; color: inherit;
  border: none; padding: 0;
  font-size: inherit;
}

/* ── Tables (Xander 重点要求统一) ── */
.article-body table {
  width: 100%;
  margin: 1.5rem 0;
  border-collapse: separate;
  border-spacing: 0;
  font-size: .95rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--cream-light);
}
.article-body thead {
  background: var(--ochre-light);
}
.article-body th {
  font-family: var(--font-display);
  font-weight: 700;
  text-align: left;
  padding: .8rem 1rem;
  color: var(--ochre-dark);
  border-bottom: 1.5px solid var(--border);
  font-size: .9rem;
}
.article-body td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--ink-faint);
  color: var(--ink);
  vertical-align: top;
}
.article-body tbody tr:last-child td { border-bottom: none; }
.article-body tbody tr:nth-child(even) { background: rgba(42,31,24,.02); }
.article-body tbody tr:hover { background: rgba(201,123,61,.06); }

/* ── Article Images / Figures ── */
.article-body img {
  margin: 1.5rem auto;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
}
.article-body figure { margin: 1.5rem 0; text-align: center; }
.article-body figcaption {
  font-size: .85rem;
  color: var(--ink-soft);
  margin-top: .5rem;
  font-style: italic;
}

/* ── Article Footer (tags + back) ── */
.article-footer {
  margin: 2.5rem auto 0;
  max-width: 760px;
  padding: 0 1.5rem;
}
.tags-list {
  display: flex; flex-wrap: wrap; gap: .5rem;
  margin-bottom: 1.5rem;
}
.tag-chip {
  font-family: var(--font-display);
  font-size: .8rem; font-weight: 600;
  padding: .25rem .7rem;
  border-radius: 999px;
  background: var(--grass-light);
  color: var(--grass);
  text-decoration: none;
  border: 1.5px solid transparent;
  transition: all .15s;
}
.tag-chip:hover { background: var(--grass); color: #fff; text-decoration: none; }
.back-link {
  font-family: var(--font-display);
  font-size: .9rem; font-weight: 600;
  color: var(--ochre);
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}
.back-link:hover { color: var(--ochre-dark); text-decoration: none; }

/* ── Comments ── */
.comments { margin: 3rem auto 0; max-width: 760px; padding: 0 1.5rem; }
.comments h3 {
  font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 700; color: var(--ink);
  margin-bottom: 1.5rem;
  padding-bottom: .6rem;
  border-bottom: 1.5px solid var(--border);
}
.comment-list { list-style: none; margin: 0; padding: 0; }
.comment-list .comment {
  background: var(--cream-glass);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.4rem;
  margin-bottom: 1rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.comment-list .comment-author {
  font-family: var(--font-display);
  font-weight: 700; color: var(--ink);
  font-size: .95rem;
}
.comment-list .comment-date { color: var(--ink-soft); font-size: .8rem; margin-left: .6rem; }
.comment-list .comment-content {
  margin-top: .6rem;
  color: var(--ink);
  font-size: .95rem; line-height: 1.7;
}
.comment-list .comment-children {
  list-style: none; margin: 1rem 0 0 1.5rem; padding: 0;
  border-left: 2px solid var(--border);
  padding-left: 1rem;
}

.comment-form {
  margin-top: 2rem;
  background: var(--cream-glass);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.6rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.comment-form .form-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
  margin-bottom: 1rem;
}
.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  padding: .65rem .85rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--cream-light);
  color: var(--ink);
  font-family: inherit;
  font-size: .95rem;
  transition: border-color .15s, background .15s;
}
.comment-form input:focus,
.comment-form textarea:focus {
  outline: none;
  border-color: var(--ochre);
  background: #fff;
}
.comment-form textarea { min-height: 120px; resize: vertical; }
.comment-form .submit-row {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 1rem;
  flex-wrap: wrap;
  gap: .8rem;
}
.comment-form .submit-row .hint { font-size: .8rem; color: var(--ink-soft); }
.comment-form .submit-btn {
  background: var(--ochre); color: #fff;
  border: 1.5px solid var(--ochre);
  padding: .55rem 1.2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600; font-size: .9rem;
  cursor: pointer;
  transition: all .15s;
}
.comment-form .submit-btn:hover { background: var(--ochre-dark); border-color: var(--ochre-dark); }
@media (max-width: 600px) {
  .comment-form .form-row { grid-template-columns: 1fr; }
}

/* ── Search / Archive ── */
.search-form {
  max-width: 480px;
  margin: 0 auto 3rem;
  display: flex;
  gap: .5rem;
}
.search-form input {
  flex: 1;
  padding: .65rem .85rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--cream-light);
  font-family: inherit; font-size: .95rem;
  color: var(--ink);
}
.search-form input:focus { outline: none; border-color: var(--ochre); }
.search-form button {
  background: var(--ochre); color: #fff;
  border: 1.5px solid var(--ochre);
  padding: .65rem 1.2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-display); font-weight: 600;
  cursor: pointer;
}
.search-form button:hover { background: var(--ochre-dark); }

.empty-state {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--ink-soft);
  font-size: .95rem;
}
.empty-state i { font-size: 2.5rem; color: var(--ink-faint); display: block; margin-bottom: 1rem; }

/* ── 404 ── */
.error-page {
  text-align: center;
  padding: 5rem 1rem;
}
.error-code {
  font-family: var(--font-display);
  font-size: clamp(5rem, 12vw, 8rem);
  font-weight: 700;
  color: var(--ochre);
  letter-spacing: -.02em;
  line-height: 1;
  margin-bottom: 1rem;
}
.error-page h1 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--ink);
  margin-bottom: .8rem;
}
.error-page p {
  color: var(--ink-soft);
  margin-bottom: 2rem;
}

/* ── Footer (与主站一致) ── */
.footer {
  background: var(--ink);
  color: rgba(255,255,255,.75);
  padding: 3.5rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.footer-brand {
  display: flex; align-items: center; gap: .6rem;
  margin-bottom: .8rem;
}
.footer-brand img { border-radius: 8px; border: 1px solid rgba(255,255,255,.2); }
.footer-brand span {
  font-family: var(--font-display);
  font-size: 1.05rem; font-weight: 700; color: #fff;
}
.footer p { font-size: .88rem; line-height: 1.7; }
.footer h4 {
  font-size: .85rem; font-weight: 700; color: #fff;
  margin-bottom: .8rem;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer ul li { margin-bottom: .5rem; }
.footer ul a {
  font-size: .88rem;
  color: rgba(255,255,255,.65);
  text-decoration: none;
  transition: color .15s;
}
.footer ul a:hover { color: #fff; text-decoration: none; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 1.5rem;
  display: flex; flex-direction: column; gap: .4rem;
  font-size: .82rem;
  color: rgba(255,255,255,.5);
}
.footer-bottom a { color: rgba(255,255,255,.55); text-decoration: none; }
.footer-bottom a:hover { color: rgba(255,255,255,.9); text-decoration: none; }

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; }
  .article-body { padding: 1.8rem 1.4rem; }
  .article-body table { font-size: .85rem; }
  .article-body th, .article-body td { padding: .55rem .65rem; }
}