/* ==== 博客 · 列表页 / 文章页 ==== */
/* 依赖 style.css 的 VI 令牌与 pages.css 的 pg-* 骨架，仅补充 bl-* 组件 */

:root {
  --bl-prose: 760px;
  --bl-toc-w: 236px;
  --bl-code-bg: #201E27;
  --bl-code-bar: rgba(239, 239, 247, .05);
  --bl-code-line: rgba(239, 239, 247, .10);
  --bl-code-ink: #E6EDF3;
  --bl-t-k: #FF7B72;
  --bl-t-s: #A5D6FF;
  --bl-t-f: #79C0FF;
  --bl-t-n: #7EE787;
  --bl-t-c: #FFA657;
  --bl-t-m: #8B949E;
  --bl-t-v: #D2A8FF;
  --bl-t-x: #FFA198;
}

/* ==== 阅读进度 ==== */
.bl-progress {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 120;
  height: 2px;
  pointer-events: none;
}

.bl-progress i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--mint), var(--peri));
  transform: scaleX(0);
  transform-origin: 0 50%;
}

/* ==== 分类徽章 ==== */
.bl-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: none;
  padding: 4px 12px;
  border: 1px solid var(--accent-line);
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--chip-ink);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: .04em;
  white-space: nowrap;
}

.bl-badge-k {
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-style: normal;
  letter-spacing: .16em;
  opacity: .68;
}

.bl-badge-k::after {
  content: "·";
  margin-left: 7px;
  opacity: .7;
}

.bl-badge--lg {
  padding: 6px 15px;
  font-size: 13px;
}

.bl-badge--lg .bl-badge-k {
  font-size: 10px;
}

/* ==== 文章页头 ==== */
.bl-hero-title {
  max-width: 20em;
  font-size: clamp(26px, 4.1vw, 46px);
  line-height: 1.28;
}

.bl-hero-lead {
  max-width: 40em;
}

.bl-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 26px;
  animation: v4-rise .65s var(--ease) .4s both;
}

.bl-author {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.bl-avatar {
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: 50%;
  border: 2px solid var(--panel);
  box-shadow: var(--shadow-1);
  object-fit: cover;
  background: var(--panel-sunk);
}

.bl-author-t {
  display: flex;
  flex-direction: column;
  min-width: 0;
  font-size: 13.5px;
  line-height: 1.45;
  color: var(--ink-1);
}

.bl-author-t small {
  font-size: 12px;
  color: var(--ink-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 26em;
}

.bl-meta-bits {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ink-3);
}

.bl-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--line-strong);
}

/* ==== 列表页 ==== */
.bl-list {
  padding-block: clamp(38px, 5vw, 62px) var(--pg-sec-pad);
}

.bl-feat {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow-1);
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.bl-feat .bl-card-img {
  aspect-ratio: 16 / 9;
}

.bl-feat .bl-card-t {
  font-size: clamp(20px, 2.7vw, 30px);
}

.bl-feat .bl-card-d {
  -webkit-line-clamp: 4;
  font-size: 15px;
}

.bl-sub-h {
  margin-top: clamp(40px, 5vw, 58px);
  margin-bottom: 20px;
  font-size: clamp(19px, 2.3vw, 26px);
  letter-spacing: .05em;
  color: var(--ink-hero);
}

.bl-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pg-gap);
}

.bl-card {
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow-1);
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.bl-feat:hover,
.bl-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-2);
}

.bl-card-img {
  display: block;
  position: relative;
  overflow: hidden;
  aspect-ratio: 8 / 5;
  border-radius: var(--radius-sm);
  background: var(--panel-sunk);
}

.bl-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s var(--ease);
}

.bl-feat:hover .bl-card-img img,
.bl-card:hover .bl-card-img img {
  transform: scale(1.035);
}

.bl-card-body {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 2px 6px 8px;
  min-width: 0;
}

.bl-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--ink-4);
}

.bl-card-read::before {
  content: "·";
  margin-right: 8px;
  color: var(--line-strong);
}

.bl-card-t {
  font-size: clamp(16.5px, 1.9vw, 19.5px);
  line-height: 1.45;
  letter-spacing: .03em;
  color: var(--ink-1);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
  transition: color .25s var(--ease);
}

.bl-feat:hover .bl-card-t,
.bl-card:hover .bl-card-t {
  color: var(--accent-ink);
}

.bl-card-d {
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--ink-2);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  overflow: hidden;
}

.bl-card-more {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: auto;
  padding-top: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-ink);
}

.bl-card-more svg {
  transition: transform .25s var(--ease);
}

.bl-feat:hover .bl-card-more svg,
.bl-card:hover .bl-card-more svg {
  transform: translateX(4px);
}

.bl-grid > .rv:nth-child(2) {
  --rv-delay: .07s;
}

.bl-grid > .rv:nth-child(3) {
  --rv-delay: .14s;
}

.bl-grid > .rv:nth-child(4) {
  --rv-delay: .21s;
}

/* ==== 分页 ==== */
.bl-pager {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: clamp(40px, 5vw, 60px);
}

.bl-pager-nums {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.bl-pager-n,
.bl-pager-gap,
.bl-pager-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-width: 40px;
  height: 40px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-2);
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
}

.bl-pager-arrow {
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
}

.bl-pager-n:hover,
.bl-pager-arrow:hover {
  border-color: var(--accent-line);
  background: var(--panel-tint);
  color: var(--accent-ink);
  transform: translateY(-2px);
}

.bl-pager-n.is-cur {
  border-color: var(--mint);
  background: var(--mint);
  color: var(--on-accent);
  font-weight: 700;
}

.bl-pager-n.is-cur:hover {
  background: var(--mint-pale);
  color: var(--on-accent);
  transform: none;
}

.bl-pager-gap,
.bl-pager-arrow.is-off {
  border-color: transparent;
  background: none;
  color: var(--ink-4);
  pointer-events: none;
}

.bl-pager-arrow.is-off {
  opacity: .45;
}

/* ==== 文章布局 ==== */
.bl-sec {
  padding-block: clamp(34px, 4.4vw, 54px) var(--pg-sec-pad);
}

.bl-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  align-items: start;
}

.bl-main {
  grid-column: 1;
  grid-row: 2;
  min-width: 0;
  max-width: var(--bl-prose);
}

.bl-toc {
  grid-column: 1;
  grid-row: 1;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel-tint);
}

.bl-toc-t {
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-4);
}

.bl-toc-l {
  max-height: 190px;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  list-style: none;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}

.bl-toc-i a {
  display: block;
  padding: 5px 0 5px 12px;
  border-left: 2px solid var(--line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-3);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.bl-toc-i[data-lvl="3"] a {
  padding-left: 24px;
  font-size: 12.5px;
}

.bl-toc-i a:hover {
  color: var(--accent-ink);
}

.bl-toc-i a.is-active {
  border-left-color: var(--mint);
  color: var(--accent-ink);
  font-weight: 600;
}

.bl-cover {
  margin: 0 0 30px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-sunk);
  box-shadow: var(--shadow-1);
}

.bl-cover img,
.bl-cover video {
  display: block;
  width: 100%;
  height: auto;
}

/* ==== 正文排版 ==== */
.bl-prose {
  font-size: 16.5px;
  line-height: 1.95;
  color: var(--ink-1);
  overflow-wrap: break-word;
}

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

.bl-prose p {
  margin: 0 0 1.25em;
}

.bl-prose h2,
.bl-prose h3,
.bl-prose h4,
.bl-prose h5,
.bl-prose h6 {
  margin: 1.9em 0 .8em;
  line-height: 1.4;
  letter-spacing: .03em;
  color: var(--ink-hero);
  scroll-margin-top: calc(var(--shell-header-h) + 20px);
}

.bl-prose h2 {
  padding-left: 15px;
  border-left: 4px solid var(--mint);
  font-size: clamp(20px, 2.5vw, 25px);
}

.bl-prose h3 {
  font-size: clamp(17.5px, 2.1vw, 20px);
}

.bl-prose h4 {
  font-size: 16.5px;
}

.bl-prose h5,
.bl-prose h6 {
  font-size: 15.5px;
  color: var(--ink-2);
}

.bl-prose strong {
  font-weight: 700;
  color: var(--ink-hero);
}

.bl-prose h2 strong,
.bl-prose h3 strong,
.bl-prose h4 strong,
.bl-prose h5 strong,
.bl-prose h6 strong {
  font-weight: inherit;
  color: inherit;
}

.bl-prose em {
  font-style: normal;
  color: var(--ink-2);
  border-bottom: 1px dashed var(--line-strong);
}

.bl-prose u {
  text-decoration-color: var(--accent-line);
  text-underline-offset: 3px;
}

.bl-prose a {
  color: var(--accent-ink);
  text-decoration: underline;
  text-decoration-color: var(--accent-line);
  text-underline-offset: 3px;
  transition: color .2s var(--ease), text-decoration-color .2s var(--ease);
}

.bl-prose a:hover {
  color: var(--mint-deep);
  text-decoration-color: currentColor;
}

.bl-prose ul,
.bl-prose ol {
  margin: 0 0 1.3em;
  padding-left: 1.5em;
}

.bl-prose li {
  margin-bottom: .5em;
}

.bl-prose li::marker {
  color: var(--mint-deep);
  font-family: var(--font-mono);
  font-size: .92em;
}

.bl-prose li > ul,
.bl-prose li > ol {
  margin: .5em 0 0;
}

.bl-quote {
  margin: 1.6em 0;
  padding: 16px 22px;
  border-left: 3px solid var(--mint);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--panel-tint);
  color: var(--ink-2);
  font-size: 15.5px;
}

.bl-quote p:last-child {
  margin-bottom: 0;
}

.bl-hr {
  margin: 2.4em auto;
  width: min(240px, 60%);
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}

.bl-img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.7em auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel-sunk);
}

.bl-fig {
  margin: 1.8em 0;
}

.bl-cap,
.bl-fig figcaption {
  margin-top: 9px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-4);
  text-align: center;
}

.bl-ci {
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel-sunk);
  font-family: var(--font-mono);
  font-size: .86em;
  color: var(--accent-ink);
  overflow-wrap: break-word;
}

.bl-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px 26px;
  margin-bottom: 1.2em;
}

.bl-col {
  min-width: 0;
}

.bl-tw {
  margin: 1.7em 0;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  overscroll-behavior-x: contain;
}

.bl-tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  line-height: 1.7;
}

.bl-tbl th,
.bl-tbl td {
  padding: 11px 15px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.bl-tbl thead th,
.bl-tbl th {
  background: var(--panel-tint);
  font-weight: 600;
  color: var(--ink-hero);
  white-space: nowrap;
}

.bl-tbl tbody tr:last-child th,
.bl-tbl tbody tr:last-child td {
  border-bottom: 0;
}

.bl-tbl tbody tr:hover {
  background: var(--panel-tint);
}

.bl-empty {
  padding: 22px 24px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--panel-tint);
  color: var(--ink-3);
  font-size: 14.5px;
}

/* ==== 代码块 ==== */
.bl-code {
  margin: 1.7em 0;
  overflow: hidden;
  border: 1px solid var(--bl-code-line);
  border-radius: var(--radius-sm);
  background: var(--bl-code-bg);
  box-shadow: var(--shadow-1);
}

.bl-code-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px 8px 14px;
  border-bottom: 1px solid var(--bl-code-line);
  background: var(--bl-code-bar);
}

.bl-code-dots {
  display: inline-flex;
  gap: 6px;
}

.bl-code-dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.bl-code-dots i:nth-child(1) {
  background: #FF5F57;
}

.bl-code-dots i:nth-child(2) {
  background: #FEBC2E;
}

.bl-code-dots i:nth-child(3) {
  background: #28C840;
}

.bl-code-lang {
  margin-right: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(230, 237, 243, .55);
}

.bl-copy {
  padding: 4px 11px;
  border: 1px solid rgba(230, 237, 243, .18);
  border-radius: 999px;
  background: none;
  color: rgba(230, 237, 243, .78);
  font-family: var(--font-body);
  font-size: 11.5px;
  line-height: 1.5;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.bl-copy:hover {
  border-color: var(--mint);
  background: rgba(50, 200, 179, .16);
  color: #DAF9F4;
}

.bl-copy.is-done {
  border-color: var(--mint);
  background: var(--mint);
  color: #10312C;
}

.bl-pre {
  margin: 0;
  padding: 15px 17px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13.2px;
  line-height: 1.78;
  color: var(--bl-code-ink);
  tab-size: 4;
  overscroll-behavior-x: contain;
  scrollbar-width: thin;
}

.bl-pre:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: -2px;
}

.bl-pre code {
  font: inherit;
  color: inherit;
}

.bl-pre .t-k {
  color: var(--bl-t-k);
}

.bl-pre .t-s {
  color: var(--bl-t-s);
}

.bl-pre .t-f {
  color: var(--bl-t-f);
}

.bl-pre .t-n {
  color: var(--bl-t-n);
}

.bl-pre .t-c {
  color: var(--bl-t-c);
}

.bl-pre .t-m {
  color: var(--bl-t-m);
}

.bl-pre .t-v {
  color: var(--bl-t-v);
}

.bl-pre .t-x {
  color: var(--bl-t-x);
}

/* ==== 文末 ==== */
.bl-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 44px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.bl-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-3);
  transition: color .2s var(--ease), gap .2s var(--ease);
}

.bl-back:hover {
  gap: 11px;
  color: var(--accent-ink);
}

.bl-pnav {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 26px;
}

.bl-pnav-a {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  transition: transform .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}

.bl-pnav-a:hover {
  transform: translateY(-3px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-1);
}

.bl-pnav-a.is-empty {
  display: none;
}

.bl-pnav-next {
  text-align: right;
}

.bl-pnav-k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-4);
}

.bl-pnav-t {
  font-size: 15.5px;
  line-height: 1.55;
  letter-spacing: .03em;
  color: var(--ink-1);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}

.bl-pnav-a:hover .bl-pnav-t {
  color: var(--accent-ink);
}

.bl-pnav-d {
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--ink-3);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}

/* ==== 收尾 CTA ==== */
.bl-cta {
  padding-block: clamp(20px, 3vw, 34px) var(--pg-sec-pad);
}

.bl-cta-card {
  --ink-1: #EFEFF7;
  --ink-2: #C9CFDC;
  --ink-3: #A6ADBC;
  --ink-4: #8A92A6;
  --accent-ink: #32C8B3;
  --accent-line: rgba(50, 200, 179, .5);
  --line: rgba(239, 239, 247, .12);
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 4.6vw, 56px) clamp(22px, 4vw, 54px);
  border: 1px solid rgba(239, 239, 247, .10);
  border-radius: var(--radius);
  background:
    radial-gradient(680px 320px at 12% -20%, rgba(50, 200, 179, .22), transparent 70%),
    radial-gradient(560px 300px at 92% 0%, rgba(180, 189, 251, .16), transparent 72%),
    linear-gradient(140deg, #2F2C37, #26232D 58%, #201E27);
  color: var(--ink-1);
  text-align: center;
  box-shadow: var(--shadow-deep);
}

.bl-cta-title {
  margin-top: 14px;
  font-size: clamp(23px, 3.5vw, 38px);
  line-height: 1.3;
  letter-spacing: .04em;
}

.bl-cta-sub {
  max-width: 44em;
  margin: 14px auto 0;
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.9;
  color: var(--ink-2);
}

.bl-cta-points {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  max-width: 780px;
  margin: 26px auto 0;
  padding: 0;
  list-style: none;
}

.bl-cta-points li {
  padding: 11px 16px;
  border: 1px solid rgba(239, 239, 247, .12);
  border-radius: var(--radius-sm);
  background: rgba(239, 239, 247, .05);
  font-size: 14px;
}

.bl-cta-points li::before {
  content: "✓";
  margin-right: 9px;
  color: var(--mint);
  font-weight: 700;
}

.bl-cta-btns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 28px;
}

/* ==== 返回顶部 ==== */
.bl-top {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--glass);
  color: var(--ink-2);
  cursor: pointer;
  box-shadow: var(--shadow-1);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  backdrop-filter: blur(14px) saturate(1.3);
  transition: color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease), opacity .25s var(--ease);
}

.bl-top:hover {
  border-color: var(--accent-line);
  color: var(--accent-ink);
  transform: translateY(-3px);
}

.bl-top[hidden] {
  display: none;
}

/* ==== 响应式 ==== */
@media (min-width: 620px) {
  .bl-pnav {
    grid-template-columns: 1fr 1fr;
  }

  .bl-cta-points {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 700px) {
  .bl-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .bl-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .bl-feat {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 30px;
    align-items: center;
    padding: 20px;
  }

  .bl-feat .bl-card-img {
    aspect-ratio: 8 / 5;
  }

  .bl-feat .bl-card-body {
    gap: 13px;
    padding: 6px 10px 6px 0;
  }
}

@media (min-width: 1180px) {
  .bl-layout {
    grid-template-columns: minmax(0, 1fr) var(--bl-toc-w);
    gap: 46px;
  }

  .bl-main {
    grid-column: 1;
    grid-row: 1;
  }

  .bl-toc {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: calc(var(--shell-header-h) + 22px);
    padding: 18px 18px 14px;
    border: 0;
    border-left: 1px solid var(--line);
    border-radius: 0;
    background: none;
  }

  .bl-toc-l {
    max-height: calc(100vh - var(--shell-header-h) - 120px);
  }
}

@media (max-width: 767px) {
  .bl-prose {
    font-size: 16px;
    line-height: 1.9;
  }

  .bl-hero-title {
    max-width: none;
  }

  .bl-pager-arrow span {
    display: none;
  }

  .bl-pager-arrow {
    min-width: 40px;
    padding: 0;
  }

  .bl-top {
    right: 14px;
    bottom: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .bl-feat,
  .bl-card,
  .bl-pnav-a,
  .bl-top,
  .bl-pager-n,
  .bl-pager-arrow {
    transition: none;
  }

  .bl-feat:hover,
  .bl-card:hover,
  .bl-pnav-a:hover,
  .bl-top:hover {
    transform: none;
  }

  .bl-card-img img {
    transition: none;
  }

  .bl-feat:hover .bl-card-img img,
  .bl-card:hover .bl-card-img img {
    transform: none;
  }

  .bl-progress {
    display: none;
  }
}