@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600;700&family=Josefin+Sans:wght@300;400;500;600;700&display=swap');

/* ===== CSS 自定义属性 ===== */
:root {
  --c-base: #1c1726;
  --c-base-2: #251e32;
  --c-base-3: #2e2540;
  --c-primary: #6514ff;
  --c-primary-dim: #4d0fcc;
  --c-accent: #bf00ff;
  --c-accent-dim: #8c00cc;
  --c-glow: rgba(101, 20, 255, 0.35);
  --c-text: #e8e0f5;
  --c-text-dim: #a89ec8;
  --c-text-muted: #6e6488;
  --c-border: rgba(101, 20, 255, 0.3);
  --c-border-bright: rgba(191, 0, 255, 0.5);
  --c-white: #ffffff;
  --nav-w: 260px;
  --r-card: 18px;
  --font-head: 'Cinzel', 'Georgia', serif;
  --font-body: 'Josefin Sans', 'Helvetica Neue', Arial, sans-serif;
  --gap-xl: 64px;
  --gap-lg: 48px;
  --gap-md: 32px;
  --gap-sm: 20px;
  --gap-xs: 12px;
  --trans: 220ms ease;
  --trans-slow: 400ms ease;
}

/* ===== 重置与基础 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--c-base);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}

body.theme-dark {
  background-color: var(--c-base);
}

img { display: block; max-width: 100%; height: auto; }
a { color: var(--c-accent); text-decoration: none; transition: color var(--trans); }
a:hover { color: var(--c-white); }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-body); }

/* ===== 布局骨架（aside 侧边 + 主内容右移）===== */
body {
  display: grid;
  grid-template-columns: var(--nav-w) 1fr;
  grid-template-rows: auto 1fr auto;
  grid-template-areas:
    "nav main"
    "nav main"
    "nav footer";
  min-height: 100vh;
}

.site-nav {
  grid-area: nav;
  position: sticky;
  top: 0;
  height: 100vh;
  background: var(--c-base-2);
  border-right: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  padding: var(--gap-md) 0 var(--gap-md);
  z-index: 100;
  overflow-y: auto;
}

.nav-brand {
  padding: 0 var(--gap-sm) var(--gap-md);
  border-bottom: 1px solid var(--c-border);
  margin-bottom: var(--gap-sm);
}

.nav-brand a {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: 0.04em;
  line-height: 1.3;
  display: block;
}

.nav-brand a:hover { color: var(--c-accent); }

.site-nav nav { flex: 1; }

.site-nav nav ul {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 0 var(--gap-xs);
}

.site-nav nav ul li a {
  display: block;
  padding: 10px 12px;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--c-text-dim);
  border-radius: 8px;
  transition: background var(--trans), color var(--trans);
  line-height: 1.4;
}

.site-nav nav ul li a:hover,
.site-nav nav ul li a[aria-current="page"] {
  background: rgba(101, 20, 255, 0.2);
  color: var(--c-white);
}

.nav-cta {
  margin: var(--gap-md) var(--gap-sm) 0;
  display: block;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  color: var(--c-white) !important;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: center;
  border-radius: 10px;
  transition: opacity var(--trans), transform var(--trans);
  min-height: 44px;
  line-height: 1.2;
}

.nav-cta:hover { opacity: 0.85; transform: translateY(-1px); }

/* ===== 主内容与页脚 ===== */
.page-home,
.page-channel,
.page-article,
.page-about,
.page-privacy {
  grid-area: main;
  min-width: 0;
}

.site-footer {
  grid-area: footer;
}

/* ===== 背景动画图案 ===== */
@keyframes patternMove {
  0% { background-position: 0 0; }
  100% { background-position: 60px 60px; }
}

@keyframes patternMoveAlt {
  0% { background-position: 0 0; }
  100% { background-position: -40px 40px; }
}

.hero-bg-pattern,
.ch-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 59px,
      rgba(101, 20, 255, 0.08) 59px,
      rgba(101, 20, 255, 0.08) 60px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 59px,
      rgba(191, 0, 255, 0.06) 59px,
      rgba(191, 0, 255, 0.06) 60px
    );
  animation: patternMove 8s linear infinite;
}

@media (prefers-reduced-motion: reduce) {
  .hero-bg-pattern,
  .ch-hero-bg { animation: none; }
}

/* ===== HERO（首页）===== */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: flex-end;
  padding: var(--gap-xl) var(--gap-xl) var(--gap-xl);
  overflow: hidden;
  background: linear-gradient(160deg, var(--c-base) 0%, #110d1e 100%);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent), var(--c-primary));
  background-size: 200% 100%;
  animation: gradientShift 4s linear infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 0%; }
  100% { background-position: 200% 0%; }
}

@media (prefers-reduced-motion: reduce) {
  .hero::after { animation: none; }
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero-eyebrow {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: var(--gap-sm);
}

.hero-h1 {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 5vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-white);
  letter-spacing: -0.01em;
  margin-bottom: var(--gap-md);
}

.hero-lead {
  font-size: 1.05rem;
  color: var(--c-text-dim);
  max-width: 560px;
  line-height: 1.75;
  margin-bottom: var(--gap-lg);
}

.hero-actions {
  display: flex;
  gap: var(--gap-sm);
  flex-wrap: wrap;
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  color: var(--c-white) !important;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  border-radius: 10px;
  transition: transform var(--trans), opacity var(--trans);
  min-height: 48px;
  box-shadow: 0 4px 24px var(--c-glow);
}

.btn-primary:hover { transform: translateY(-2px); opacity: 0.9; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  border: 1.5px solid var(--c-border-bright);
  color: var(--c-text) !important;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-radius: 10px;
  transition: border-color var(--trans), color var(--trans), background var(--trans);
  min-height: 48px;
}

.btn-ghost:hover {
  border-color: var(--c-accent);
  color: var(--c-white) !important;
  background: rgba(191, 0, 255, 0.1);
}

/* ===== Section 通用 ===== */
.section-header {
  display: flex;
  align-items: center;
  gap: var(--gap-md);
  margin-bottom: var(--gap-lg);
}

.section-title {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--c-white);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--c-border-bright), transparent);
}

/* ===== 内容区间距 ===== */
.home-content,
.ch-content,
.about-body,
.privacy-body {
  padding: var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
}

.channels-section,
.recent-section {
  padding: var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
}

/* ===== 卡片网格 ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--gap-lg);
}

.card {
  background: var(--c-base-2);
  border-radius: var(--r-card);
  border: 1px solid var(--c-border);
  overflow: hidden;
  transition: transform var(--trans), border-color var(--trans), box-shadow var(--trans);
  position: relative;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--c-border-bright);
  box-shadow: 0 8px 32px var(--c-glow);
}

.card-inner {
  padding: var(--gap-md);
  display: flex;
  flex-direction: column;
  gap: var(--gap-xs);
  min-height: 180px;
}

.card-eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent);
}

.card-title {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

.card-title a { color: var(--c-white); }
.card-title a:hover { color: var(--c-accent); }

.card-desc {
  font-size: 0.85rem;
  color: var(--c-text-dim);
  line-height: 1.6;
  flex: 1;
}

.card-count {
  font-size: 0.75rem;
  color: var(--c-text-muted);
  letter-spacing: 0.06em;
}

.card-accent {
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  margin-top: var(--gap-sm);
  border-radius: 0 0 2px 2px;
}

/* ===== 近期文章列表 ===== */
.art-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--gap-md);
}

.art-item {
  padding: var(--gap-md);
  background: var(--c-base-3);
  border-radius: var(--r-card);
  border-left: 3px solid var(--c-primary);
  transition: border-color var(--trans), background var(--trans);
}

.art-item:hover {
  border-color: var(--c-accent);
  background: var(--c-base-2);
}

.art-meta { margin-bottom: 8px; }

.art-date,
.art-item time {
  font-size: 0.75rem;
  color: var(--c-accent);
  letter-spacing: 0.06em;
}

.art-title {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
  line-height: 1.4;
}

.art-title a { color: var(--c-white); }
.art-title a:hover { color: var(--c-accent); }

.art-desc {
  font-size: 0.82rem;
  color: var(--c-text-dim);
  line-height: 1.6;
}

/* ===== 栏目页 Hero ===== */
.ch-hero {
  position: relative;
  min-height: 42vh;
  display: flex;
  align-items: flex-end;
  padding: var(--gap-xl);
  overflow: hidden;
  background: linear-gradient(145deg, var(--c-base) 0%, #15102a 100%);
  border-bottom: 1px solid var(--c-border);
}

.ch-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--c-primary), var(--c-accent), transparent);
}

.ch-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.ch-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: 12px;
}

.ch-h1 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.15;
  margin-bottom: var(--gap-sm);
  letter-spacing: -0.01em;
}

.ch-lead {
  font-size: 1rem;
  color: var(--c-text-dim);
  max-width: 520px;
  line-height: 1.7;
}

/* ===== 栏目子页卡片 ===== */
.ch-children {
  padding: var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
}

.ch-card-list {
  display: flex;
  flex-direction: column;
  gap: var(--gap-md);
}

.ch-card {
  position: relative;
  background: var(--c-base-2);
  border-radius: var(--r-card);
  border: 1px solid var(--c-border);
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 0;
  overflow: hidden;
  transition: border-color var(--trans), transform var(--trans), box-shadow var(--trans);
}

.ch-card:hover {
  border-color: var(--c-border-bright);
  transform: translateX(4px);
  box-shadow: 0 4px 20px var(--c-glow);
}

.ch-card-num {
  background: linear-gradient(180deg, var(--c-primary), var(--c-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.ch-card-body {
  padding: var(--gap-md);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ch-card-title {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

.ch-card-title a { color: var(--c-white); }
.ch-card-title a:hover { color: var(--c-accent); }

.ch-card-desc {
  font-size: 0.85rem;
  color: var(--c-text-dim);
  line-height: 1.6;
}

.ch-card-date {
  font-size: 0.75rem;
  color: var(--c-text-muted);
}

.ch-card-date time { color: var(--c-accent); }

.ch-card-accent {
  position: absolute;
  bottom: 0;
  left: 52px;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  opacity: 0;
  transition: opacity var(--trans);
}

.ch-card:hover .ch-card-accent { opacity: 1; }

/* ===== 相关栏目链接 ===== */
.ch-siblings {
  padding: var(--gap-lg) var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
}

.sib-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  margin-bottom: var(--gap-sm);
}

.sib-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-xs);
}

.sib-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--c-text-dim) !important;
  min-height: 40px;
  transition: border-color var(--trans), color var(--trans), background var(--trans);
}

.sib-link:hover {
  border-color: var(--c-accent);
  color: var(--c-white) !important;
  background: rgba(191, 0, 255, 0.08);
}

/* ===== 文章页 ===== */
.art-header {
  padding: var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
  background: linear-gradient(160deg, #13101f 0%, var(--c-base) 100%);
}

.art-header-inner { max-width: 800px; }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--gap-md);
}

.bc-item {
  font-size: 0.78rem;
  color: var(--c-text-muted);
}

.bc-item a { color: var(--c-text-dim); }
.bc-item a:hover { color: var(--c-accent); }

.bc-current { color: var(--c-text-dim); }
.bc-sep { color: var(--c-text-muted); }

.art-h1 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: var(--gap-sm);
}

.art-dateline {
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
  margin-bottom: var(--gap-sm);
  font-size: 0.82rem;
  flex-wrap: wrap;
}

.art-dateline time { color: var(--c-accent); }

.art-updated { color: var(--c-text-muted); }
.art-updated time { color: var(--c-text-dim); }

.art-lead {
  font-size: 1rem;
  color: var(--c-text-dim);
  line-height: 1.75;
  max-width: 640px;
  margin-top: var(--gap-sm);
}

.art-hero-wrap {
  margin-top: var(--gap-lg);
  border-radius: var(--r-card);
  overflow: hidden;
}

.art-hero-img {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== 正文区 ===== */
.art-body {
  padding: var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
}

.art-body-inner {
  max-width: 760px;
}

/* ===== 关联文章 ===== */
.art-related {
  padding: var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
}

.rel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--gap-md);
}

.rel-card {
  background: var(--c-base-2);
  border-radius: var(--r-card);
  border: 1px solid var(--c-border);
  padding: var(--gap-md);
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--trans), transform var(--trans);
}

.rel-card:hover {
  border-color: var(--c-border-bright);
  transform: translateY(-3px);
}

.rel-title {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.4;
}

.rel-title a { color: var(--c-white); }
.rel-title a:hover { color: var(--c-accent); }

.rel-desc {
  font-size: 0.82rem;
  color: var(--c-text-dim);
  line-height: 1.55;
  flex: 1;
}

.rel-date { font-size: 0.75rem; color: var(--c-text-muted); }
.rel-date time { color: var(--c-accent); }

.rel-accent {
  height: 2px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  border-radius: 0 0 2px 2px;
  margin-top: auto;
  opacity: 0.6;
  transition: opacity var(--trans);
}

.rel-card:hover .rel-accent { opacity: 1; }

/* ===== 文章页底部导航 ===== */
.art-footer-nav {
  padding: var(--gap-lg) var(--gap-xl);
  display: flex;
  gap: var(--gap-md);
  flex-wrap: wrap;
  align-items: center;
}

.back-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-text-dim) !important;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 0;
  transition: color var(--trans);
}

.back-link:hover { color: var(--c-accent) !important; }

/* ===== About 页 ===== */
.about-header {
  padding: var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
  background: linear-gradient(145deg, var(--c-base) 0%, #12101e 100%);
}

.about-header-inner { max-width: 680px; }

.about-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: 12px;
}

.about-h1 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.15;
  margin-bottom: var(--gap-sm);
}

.about-lead {
  font-size: 1rem;
  color: var(--c-text-dim);
  line-height: 1.75;
}

.about-body {
  padding: var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
}

.about-body-inner { max-width: 720px; }

.about-links {
  padding: var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
}

.about-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--gap-md);
}

.about-nav-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--gap-md);
  background: var(--c-base-2);
  border-radius: var(--r-card);
  border: 1px solid var(--c-border);
  min-height: 100px;
  transition: border-color var(--trans), transform var(--trans);
}

.about-nav-card:hover {
  border-color: var(--c-border-bright);
  transform: translateY(-3px);
}

.about-nav-title {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-white);
  line-height: 1.4;
}

.about-nav-desc {
  font-size: 0.8rem;
  color: var(--c-text-dim);
  line-height: 1.55;
}

/* ===== Privacy 页 ===== */
.privacy-header {
  padding: var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
}

.privacy-header-inner { max-width: 680px; }

.privacy-eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  margin-bottom: 12px;
}

.privacy-h1 {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 600;
  color: var(--c-white);
  line-height: 1.2;
  margin-bottom: var(--gap-sm);
}

.privacy-lead {
  font-size: 1rem;
  color: var(--c-text-dim);
  line-height: 1.7;
}

.privacy-date {
  margin-top: var(--gap-sm);
  font-size: 0.82rem;
  color: var(--c-text-muted);
}

.privacy-date time { color: var(--c-accent); }

.privacy-body {
  padding: var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
}

.privacy-body-inner { max-width: 720px; }

.privacy-back {
  padding: var(--gap-lg) var(--gap-xl);
  display: flex;
  gap: var(--gap-md);
  flex-wrap: wrap;
}

/* ===== 通用正文排版 ===== */
.content-prose h2,
.content-prose h3,
.content-prose h4 {
  font-family: var(--font-head);
  color: var(--c-white);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.content-prose h2 { font-size: 1.4rem; margin: var(--gap-lg) 0 var(--gap-sm); }
.content-prose h3 { font-size: 1.1rem; margin: var(--gap-md) 0 var(--gap-xs); }
.content-prose h4 { font-size: 0.95rem; margin: var(--gap-sm) 0 var(--gap-xs); }

.content-prose p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
  margin-bottom: var(--gap-sm);
}

.content-prose ul,
.content-prose ol {
  padding-left: 1.5em;
  margin-bottom: var(--gap-sm);
}

.content-prose li {
  line-height: 1.75;
  font-size: 1rem;
  color: var(--c-text);
  margin-bottom: 6px;
}

.content-prose ul { list-style: disc; }
.content-prose ol { list-style: decimal; }

.content-prose a {
  color: var(--c-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.content-prose a:hover { color: var(--c-white); }

.content-prose strong { color: var(--c-white); font-weight: 700; }
.content-prose em { color: var(--c-text-dim); font-style: italic; }

.content-prose blockquote {
  border-left: 3px solid var(--c-primary);
  padding: var(--gap-sm) var(--gap-md);
  margin: var(--gap-md) 0;
  background: var(--c-base-2);
  border-radius: 0 8px 8px 0;
  color: var(--c-text-dim);
  font-style: italic;
}

.content-prose code {
  background: var(--c-base-3);
  color: var(--c-accent);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.88em;
}

.content-prose pre {
  background: var(--c-base-3);
  padding: var(--gap-md);
  border-radius: 10px;
  overflow-x: auto;
  margin: var(--gap-md) 0;
}

.content-prose pre code {
  background: none;
  padding: 0;
  color: var(--c-text);
}

.content-prose table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--gap-md) 0;
  font-size: 0.9rem;
}

.content-prose th {
  background: var(--c-base-3);
  color: var(--c-white);
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid var(--c-border-bright);
}

.content-prose td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-text-dim);
}

.content-prose tr:hover td { background: rgba(101, 20, 255, 0.05); }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--c-base-2);
  border-top: 1px solid var(--c-border);
}

.footer-form-block {
  padding: var(--gap-xl);
  border-bottom: 1px solid var(--c-border);
  display: flex;
  flex-direction: column;
  gap: var(--gap-xs);
}

.footer-brand {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: 0.06em;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--c-text-dim);
  max-width: 480px;
  line-height: 1.65;
}

.footer-bar {
  padding: var(--gap-md) var(--gap-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-md);
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--c-text-muted);
}

.footer-nav {
  display: flex;
  gap: var(--gap-md);
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: 0.78rem;
  color: var(--c-text-muted);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 4px 0;
  transition: color var(--trans);
}

.footer-nav a:hover { color: var(--c-accent); }

/* ===== Scroll Reveal 动画 ===== */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 350ms ease, transform 350ms ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  :root { --nav-w: 220px; }
  .hero { padding: var(--gap-lg) var(--gap-md) var(--gap-lg); min-height: 60vh; }
  .channels-section, .recent-section, .home-content,
  .ch-children, .ch-content, .ch-siblings,
  .art-body, .art-header, .art-related, .art-footer-nav,
  .about-header, .about-body, .about-links,
  .privacy-header, .privacy-body, .privacy-back,
  .footer-form-block { padding: var(--gap-lg) var(--gap-md); }
  .footer-bar { padding: var(--gap-sm) var(--gap-md); }
}

@media (max-width: 680px) {
  body {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto 1fr auto;
    grid-template-areas:
      "nav"
      "main"
      "main"
      "footer";
  }

  .site-nav {
    position: static;
    height: auto;
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    padding: 0;
    border-right: none;
    border-bottom: 1px solid var(--c-border);
  }

  .nav-brand {
    padding: 14px 16px;
    border-bottom: none;
    border-right: 1px solid var(--c-border);
    margin-bottom: 0;
    flex-shrink: 0;
  }

  .site-nav nav {
    flex: 1;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .site-nav nav::-webkit-scrollbar { display: none; }

  .site-nav nav ul {
    flex-direction: row;
    padding: 0 8px;
    gap: 0;
  }

  .site-nav nav ul li a {
    white-space: nowrap;
    padding: 14px 12px;
    border-radius: 0;
    font-size: 0.78rem;
  }

  .nav-cta {
    margin: 0;
    border-radius: 0;
    padding: 14px 16px;
    font-size: 0.78rem;
    flex-shrink: 0;
    min-height: 48px;
  }

  .hero { min-height: 60vh; padding: var(--gap-lg) var(--gap-sm) var(--gap-lg); }
  .hero-h1 { font-size: 2rem; }
  .ch-h1 { font-size: 1.8rem; }
  .art-h1 { font-size: 1.6rem; }

  .card-grid { grid-template-columns: 1fr; gap: var(--gap-md); }
  .art-list { grid-template-columns: 1fr; }
  .rel-grid { grid-template-columns: 1fr; }
  .about-nav-grid { grid-template-columns: 1fr; }

  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-ghost { min-height: 52px; text-align: center; justify-content: center; }

  .channels-section, .recent-section, .home-content,
  .ch-children, .ch-content, .ch-siblings,
  .art-body, .art-header, .art-related, .art-footer-nav,
  .about-header, .about-body, .about-links,
  .privacy-header, .privacy-body, .privacy-back,
  .footer-form-block { padding: var(--gap-md) var(--gap-sm); }
  .footer-bar { padding: var(--gap-sm); flex-direction: column; align-items: flex-start; }

  .ch-hero { min-height: 36vh; padding: var(--gap-lg) var(--gap-sm); }

  .art-footer-nav { padding: var(--gap-md) var(--gap-sm); }
}

@media (max-width: 400px) {
  .hero-h1 { font-size: 1.7rem; }
  .nav-brand a { font-size: 0.82rem; }
}