/* 超顾知识 chaoguzs.com — 综合知识门户 */

:root {
  --ink: #1a1f27;
  --ink-soft: #4e5664;
  --paper: #eef0f3;
  --paper-deep: #e2e5ea;
  --surface: #fafbfc;
  --line: #c9d0d9;
  --navy: #2a3f5f;
  --navy-deep: #1e304a;
  --clay: #b85a3c;
  --clay-hover: #9a4a32;
  --mist: #8a929e;
  --white: #ffffff;
  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --max: 1120px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--navy);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

a:hover {
  color: var(--clay);
}

.site-wrap {
  overflow-x: hidden;
}

.container-cg {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

@media (max-width: 575.98px) {
  .container-cg {
    width: min(100% - 1.35rem, var(--max));
  }
}

/* —— Masthead —— */
.masthead {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 1.15rem 0 0;
}

.masthead-top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
}

.brand-block {
  text-decoration: none;
  color: inherit;
}

.brand-block:hover {
  color: inherit;
}

.brand-zh {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 4vw, 2.15rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.15;
  margin: 0;
  color: var(--ink);
}

.brand-en {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.masthead-tag {
  margin: 0;
  max-width: 16em;
  text-align: right;
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.45;
}

@media (max-width: 575.98px) {
  .masthead-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .masthead-tag {
    text-align: left;
    max-width: none;
  }
}

.channel-bar {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  border-top: 2px solid var(--ink);
  padding: 0.15rem 0;
  position: relative;
}

.channel-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
}

.channel-links a {
  display: block;
  padding: 0.7rem 0.85rem;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  border-bottom: 2px solid transparent;
}

.channel-links a:hover,
.channel-links a.active {
  color: var(--ink);
  border-bottom-color: var(--clay);
}

.nav-toggle {
  display: none;
  width: 2.4rem;
  height: 2.4rem;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 1.3rem;
  margin-inline: auto;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 991.98px) {
  .nav-toggle {
    display: flex;
  }

  .channel-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--line);
    border-top: none;
    z-index: 30;
    box-shadow: 0 12px 24px rgba(26, 31, 39, 0.08);
  }

  .channel-links.is-open {
    display: flex;
  }

  .channel-links a {
    border-bottom: 1px solid var(--line);
    border-bottom-color: var(--line);
  }
}

.page-inner .masthead {
  background: var(--ink);
  border-bottom: none;
}

.page-inner .brand-zh {
  color: var(--white);
}

.page-inner .brand-en,
.page-inner .masthead-tag {
  color: rgba(255, 255, 255, 0.55);
}

.page-inner .channel-bar {
  border-top-color: rgba(255, 255, 255, 0.2);
}

.page-inner .channel-links a {
  color: rgba(255, 255, 255, 0.7);
}

.page-inner .channel-links a:hover,
.page-inner .channel-links a.active {
  color: var(--white);
  border-bottom-color: var(--clay);
}

.page-inner .nav-toggle span {
  background: var(--white);
}

.page-inner .channel-links {
  background: #222830;
  border-color: #333;
}

/* —— Hero portal —— */
.hero {
  position: relative;
  background: var(--navy-deep);
  color: var(--white);
  overflow: hidden;
  isolation: isolate;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(115deg, rgba(30, 48, 74, 0.2) 0%, rgba(30, 48, 74, 0.85) 55%, rgba(26, 31, 39, 0.95) 100%),
    radial-gradient(ellipse 50% 60% at 90% 10%, rgba(184, 90, 60, 0.25), transparent 55%),
    linear-gradient(160deg, #1e304a 0%, #2a3f5f 40%, #1a2433 100%);
}

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.4;
  background-image: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 31px,
    rgba(255, 255, 255, 0.03) 31px,
    rgba(255, 255, 255, 0.03) 32px
  );
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 2rem 2.5rem;
  padding: 2.75rem 0 3rem;
  align-items: end;
}

@media (max-width: 767.98px) {
  .hero-grid {
    grid-template-columns: 1fr;
    padding: 2.25rem 0 2.5rem;
  }
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1.15;
  margin: 0 0 0.85rem;
  opacity: 0;
  animation: rise 0.8s var(--ease) 0.08s forwards;
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.45;
  margin: 0 0 0.85rem;
  max-width: 16em;
  opacity: 0;
  animation: rise 0.8s var(--ease) 0.2s forwards;
}

.hero-lead {
  margin: 0;
  max-width: 32em;
  color: rgba(255, 255, 255, 0.72);
  opacity: 0;
  animation: rise 0.8s var(--ease) 0.32s forwards;
}

.hero-side {
  opacity: 0;
  animation: rise 0.8s var(--ease) 0.4s forwards;
}

.hero-side h2 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 0.85rem;
  color: rgba(255, 255, 255, 0.9);
}

.hero-side ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: principle;
}

.hero-side li {
  counter-increment: principle;
  position: relative;
  padding: 0.55rem 0 0.55rem 2.1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.7);
}

.hero-side li:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-side li::before {
  content: counter(principle);
  position: absolute;
  left: 0;
  top: 0.55rem;
  font-family: var(--font-display);
  font-weight: 700;
  color: #e8a07a;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* —— Sections —— */
.section {
  padding: 3.75rem 0;
}

.section-alt {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  margin-bottom: 1.5rem;
}

.section-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--clay);
  margin-bottom: 0.4rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.3;
  margin: 0 0 0.5rem;
}

.section-desc {
  margin: 0;
  max-width: 38em;
  color: var(--ink-soft);
}

.prose p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
  max-width: 42em;
}

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

.prose ul {
  margin: 0 0 1rem;
  padding-left: 1.15rem;
  color: var(--ink-soft);
  max-width: 40em;
}

.pull-quote {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.3vw, 1.3rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.5;
  margin: 1.5rem 0 0;
  padding: 1rem 0 1rem 1.1rem;
  border-left: 3px solid var(--clay);
  color: var(--ink);
  max-width: 36em;
}

/* Featured (portal) — legacy text layout kept for compatibility */
.feature-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 0;
  border: 1px solid var(--line);
  background: var(--surface);
}

.feature-main,
.feature-side-item {
  padding: 1.35rem 1.35rem;
}

.feature-main {
  border-right: 1px solid var(--line);
  background:
    linear-gradient(165deg, rgba(42, 63, 95, 0.06), transparent 60%),
    var(--surface);
}

.feature-kicker {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clay);
  margin: 0 0 0.55rem;
}

.feature-title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.8vw, 1.55rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  line-height: 1.35;
  margin: 0 0 0.55rem;
  color: var(--ink);
}

.feature-excerpt {
  margin: 0 0 0.75rem;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.feature-meta {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--mist);
}

.feature-side {
  display: flex;
  flex-direction: column;
}

.feature-side-item {
  flex: 1;
  border-bottom: 1px solid var(--line);
}

.feature-side-item:last-child {
  border-bottom: none;
}

.feature-side-item .feature-title {
  font-size: 1.05rem;
}

@media (max-width: 767.98px) {
  .feature-layout {
    grid-template-columns: 1fr;
  }

  .feature-main {
    border-right: none;
    border-bottom: 1px solid var(--line);
  }
}

.blog-static .feature-main,
.blog-static .feature-side-item {
  cursor: default;
}

/* Image + text media lists */
.media-feature {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 0;
  margin-bottom: 1.1rem;
  border: 1px solid var(--line);
  background: var(--surface);
  overflow: hidden;
}

.media-feature-visual {
  min-height: 15rem;
  background: var(--navy-deep);
}

.media-feature-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 15rem;
}

.media-feature-body {
  padding: 1.5rem 1.35rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

@media (max-width: 767.98px) {
  .media-feature {
    grid-template-columns: 1fr;
  }

  .media-feature-visual,
  .media-feature-visual img {
    min-height: 11.5rem;
  }
}

.media-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.media-list-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem 1.05rem;
}

@media (max-width: 991.98px) {
  .media-list-grid {
    grid-template-columns: 1fr;
  }
}

.media-row {
  display: grid;
  grid-template-columns: minmax(8.5rem, 11.5rem) 1fr;
  gap: 0.95rem 1.15rem;
  align-items: stretch;
  padding: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.section-alt .media-row,
.section-alt .media-feature {
  background: var(--paper);
}

.media-row-stack {
  grid-template-columns: 1fr;
  gap: 0.75rem;
  height: 100%;
}

a.media-row:hover {
  border-color: var(--navy);
  transform: translateY(-2px);
  color: inherit;
}

a.media-row:hover .media-title {
  color: var(--clay);
}

.blog-static .media-row,
.blog-static .media-feature {
  cursor: default;
}

.media-thumb {
  overflow: hidden;
  background: var(--navy-deep);
  aspect-ratio: 16 / 9;
}

.media-row-stack .media-thumb {
  aspect-ratio: 16 / 10;
}

.media-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--ease);
}

a.media-row:hover .media-thumb img {
  transform: scale(1.04);
}

.media-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: 0.1rem 0.1rem 0.1rem 0;
}

.media-row-stack .media-body {
  padding: 0 0.1rem 0.2rem;
}

.media-cat {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clay);
  margin-bottom: 0.3rem;
}

.media-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  line-height: 1.4;
  margin: 0 0 0.35rem;
  color: var(--ink);
}

.media-feature .media-title {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
  letter-spacing: 0.05em;
  line-height: 1.35;
}

.media-excerpt {
  margin: 0 0 0.4rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

.media-date {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--mist);
}

@media (max-width: 575.98px) {
  .media-row:not(.media-row-stack) {
    grid-template-columns: 6.5rem 1fr;
    gap: 0.75rem;
    padding: 0.55rem;
  }

  .media-title {
    font-size: 0.95rem;
  }

  .media-excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}

/* Channel desks */
.channel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem 1.5rem;
}

@media (max-width: 991.98px) {
  .channel-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575.98px) {
  .channel-grid {
    grid-template-columns: 1fr;
  }
}

.channel-card {
  min-width: 0;
  padding-top: 0.25rem;
}

.channel-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--navy);
}

.channel-card-head h3 {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin: 0;
}

.channel-card-head span {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.channel-card p {
  margin: 0 0 0.65rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

.channel-card .sample-title {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0 0 0.3rem;
  color: var(--ink);
  line-height: 1.4;
}

.channel-card time {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--mist);
}

/* Principles */
.principle-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
}

@media (max-width: 991.98px) {
  .principle-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .principle-grid {
    grid-template-columns: 1fr;
  }
}

.principle-item {
  padding: 1.1rem 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--navy);
}

.principle-item:nth-child(2) {
  border-top-color: var(--clay);
}

.principle-item h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin: 0 0 0.45rem;
}

.principle-item p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

/* Blog list — image + text */
.blog-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.blog-item {
  min-width: 0;
}

.blog-row {
  display: grid;
  grid-template-columns: minmax(8.5rem, 12rem) 1fr;
  gap: 1rem 1.2rem;
  align-items: stretch;
  padding: 0.8rem;
  background: var(--paper);
  border: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

a.blog-row:hover {
  border-color: var(--navy);
  transform: translateY(-1px);
  color: inherit;
}

a.blog-row:hover .blog-title {
  color: var(--clay);
}

.blog-thumb {
  overflow: hidden;
  background: var(--navy-deep);
  aspect-ratio: 16 / 10;
}

.blog-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--ease);
}

a.blog-row:hover .blog-thumb img {
  transform: scale(1.04);
}

.blog-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0 0 0.35rem;
  color: var(--ink);
  line-height: 1.4;
  transition: color 0.2s;
}

.blog-excerpt {
  margin: 0 0 0.45rem;
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.55;
}

.blog-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.85rem;
  align-items: center;
  font-size: 0.78rem;
  color: var(--mist);
}

.blog-meta {
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--navy);
}

@media (max-width: 575.98px) {
  .blog-row {
    grid-template-columns: 6.25rem 1fr;
    gap: 0.75rem;
    padding: 0.55rem;
  }

  .blog-title {
    font-size: 0.98rem;
  }

  .blog-excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.35rem;
}

.filter-bar a,
.filter-bar span {
  padding: 0.4rem 0.7rem;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-soft);
  text-decoration: none;
}

.filter-bar a:hover,
.filter-bar span.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

/* Inner */
.page-header {
  padding: 2.25rem 0 1.65rem;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.page-inner .page-header {
  background: var(--paper);
}

.page-header .section-label {
  color: var(--clay);
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 4vw, 2.1rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin: 0 0 0.45rem;
  line-height: 1.3;
}

.page-header p {
  margin: 0;
  max-width: 34em;
  color: var(--ink-soft);
}

.article-shell {
  padding: 2.5rem 0 1rem;
}

.article-body {
  max-width: 40rem;
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.1rem;
  margin-bottom: 1.4rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--mist);
}

.article-meta-bar .tag {
  color: var(--navy);
}

.article-body h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin: 1.9rem 0 0.7rem;
}

.article-body p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}

.article-body ul,
.article-body ol {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
  color: var(--ink-soft);
}

.article-body blockquote {
  margin: 1.35rem 0;
  padding: 0.85rem 0 0.85rem 1.1rem;
  border-left: 3px solid var(--clay);
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
}

.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.75rem;
  padding-top: 1.35rem;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
  font-weight: 600;
}

.article-nav a {
  color: var(--ink-soft);
}

.article-nav a:hover {
  color: var(--clay);
}

/* Related / latest */
.article-more {
  padding: 2.75rem 0 3.25rem;
  background: var(--surface);
  border-top: 1px solid var(--line);
}

.article-more-tabs {
  display: flex;
  margin-bottom: 1.35rem;
  border-bottom: 1px solid var(--line);
}

.article-more-tab {
  appearance: none;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 0.65rem 1rem 0.7rem;
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--mist);
  cursor: pointer;
}

.article-more-tab.is-active {
  color: var(--ink);
  border-bottom-color: var(--clay);
}

.article-more-panel[hidden] {
  display: none !important;
}

.article-more-panel.is-active {
  display: grid;
  gap: 0.85rem;
}

.related-card {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
}

.related-card:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.related-card:hover .related-card-body h3 {
  color: var(--clay);
}

.related-card-media {
  overflow: hidden;
  aspect-ratio: 8 / 5;
  background: var(--navy);
}

.related-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.related-card-body h3 {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0 0 0.35rem;
  color: var(--ink);
  line-height: 1.4;
}

.related-card-excerpt {
  margin: 0 0 0.4rem;
  font-size: 0.86rem;
  color: var(--ink-soft);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card-body time {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--mist);
}

.latest-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.latest-list li {
  border-bottom: 1px solid var(--line);
}

.latest-list li:last-child {
  border-bottom: none;
}

.latest-list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  color: var(--ink);
  text-decoration: none;
}

.latest-title {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.4;
}

.latest-date {
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--mist);
}

.latest-list a:hover {
  color: var(--clay);
}

@media (max-width: 575.98px) {
  .related-card {
    grid-template-columns: 5.5rem 1fr;
  }
}

/* Footer */
.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.55);
  padding: 2.5rem 0 1.85rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.25rem;
  align-items: flex-end;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--white);
}

.footer-tag {
  margin: 0.3rem 0 0;
  font-size: 0.88rem;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.15rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.88rem;
  font-weight: 600;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-copy {
  margin: 0;
  width: 100%;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.35);
}

/* Media list page (图文列表) */
.media-list-page .media-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.media-list-page .media-row {
  display: grid;
  grid-template-columns: minmax(8.5rem, 12rem) 1fr;
  gap: 1rem 1.2rem;
  align-items: stretch;
  padding: 0.8rem;
  border: 1px solid var(--line, #c9d0d9);
  background: var(--surface, #fafbfc);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.2s, transform 0.2s;
}

.media-list-page a.media-row:hover {
  transform: translateY(-1px);
  color: inherit;
}

.media-list-page .media-thumb {
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: #1a1f27;
}

.media-list-page .media-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.media-list-page a.media-row:hover .media-thumb img {
  transform: scale(1.04);
}

.media-list-page .media-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.media-list-page .media-cat {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 0.3rem;
  opacity: 0.85;
}

.media-list-page .media-title {
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.4;
  margin: 0 0 0.35rem;
}

.media-list-page .media-excerpt {
  margin: 0 0 0.4rem;
  font-size: 0.92rem;
  line-height: 1.55;
  opacity: 0.82;
}

.media-list-page .media-date {
  font-size: 0.78rem;
  opacity: 0.65;
}

.media-list-page .list-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.35rem;
}

.media-list-page .list-switch a,
.media-list-page .list-switch span {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px solid var(--line, #c9d0d9);
  text-decoration: none;
}

.media-list-page .list-switch .is-active {
  border-color: currentColor;
}

@media (max-width: 575.98px) {
  .media-list-page .media-row {
    grid-template-columns: 6.25rem 1fr;
    gap: 0.75rem;
    padding: 0.55rem;
  }

  .media-list-page .media-title {
    font-size: 0.98rem;
  }

  .media-list-page .media-excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}

/* List view switch */
.list-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.35rem;
}
.list-switch a,
.list-switch span {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 600;
  border: 1px solid var(--line, #c9d0d9);
  text-decoration: none;
  color: inherit;
}
.list-switch .is-active {
  border-color: currentColor;
}

.nav-links a[href*="feedback.html"],
.channel-links a[href*="feedback.html"] {
  font-weight: 700;
}
.site-nav .nav-links a[href*="feedback.html"],
.channel-bar .channel-links a[href*="feedback.html"] {
  border: 1px solid currentColor;
  border-radius: 2px;
  padding-inline: 0.65rem;
  margin-left: 0.25rem;
}

.btn-feedback-submit {
  background: var(--clay);
  color: #fff;
}
.btn-feedback-submit:hover {
  filter: brightness(1.05);
}