@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400&family=JetBrains+Mono:wght@400&family=Playfair+Display:ital@1&display=swap');

/* ===== 变量 ===== */
:root {
  --c-bg: #0D0D0D;
  --c-accent: #C0392B;
  --c-fg: #F5F5F0;
  --c-fg-dim: rgba(245,245,240,0.55);
  --c-fg-muted: rgba(245,245,240,0.3);
  --c-accent-dim: rgba(192,57,43,0.15);
  --c-accent-glow: rgba(192,57,43,0.35);
  --c-border: rgba(245,245,240,0.1);
  --c-card: #161616;
  --c-card-hover: #1e1e1e;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --nav-h: 56px;
  --radius: 10px;
  --max-w: 1100px;
  --max-content: 720px;
  --transition: 220ms cubic-bezier(0.4,0,0.2,1);
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--c-bg);
  color: var(--c-fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
summary { list-style: none; cursor: pointer; }
summary::-webkit-details-marker { display: none; }
details > summary { list-style: none; }

/* ===== 工具 ===== */
.site-wrap { min-height: 100vh; padding-bottom: var(--nav-h); }
.page-body { max-width: var(--max-w); margin: 0 auto; padding: 0 1.25rem; }

/* ===== 点阵底纹 ===== */
.dot-grid-bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(245,245,240,0.18) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
  z-index: 0;
}

/* ===== 底部固定导航 ===== */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(13,13,13,0.96);
  border-top: 1px solid var(--c-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
}
.bottom-nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 1rem;
}
.brand-home {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  margin-right: 0.75rem;
  border: 1.5px solid var(--c-accent);
  border-radius: 6px;
  transition: background var(--transition), border-color var(--transition);
}
.brand-home:hover, .brand-home:focus { background: var(--c-accent-dim); }
.brand-icon { width: 28px; height: 28px; object-fit: contain; }
.brand-icon-text {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1rem;
  color: var(--c-accent);
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
  overflow: hidden;
}
.nav-item { position: relative; }
.nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--c-fg-dim);
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: color var(--transition);
  border-radius: 6px;
  min-width: 40px;
}
.nav-link:hover, .nav-link:focus { color: var(--c-fg); }
.nav-link--active { color: var(--c-accent) !important; }
.nav-more { position: relative; }
.nav-summary {
  display: flex;
  align-items: center;
  height: 40px;
  padding: 0 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--c-fg-dim);
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
  min-width: 40px;
}
.nav-summary:hover, .nav-summary:focus { color: var(--c-fg); background: rgba(245,245,240,0.05); }
.nav-dropdown {
  position: absolute;
  bottom: calc(100% + 8px);
  right: 0;
  background: #1a1a1a;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 0.5rem 0;
  min-width: 220px;
  box-shadow: 0 -8px 32px rgba(0,0,0,0.6);
  z-index: 200;
}
.nav-dropdown li { display: block; }
.nav-dropdown .nav-link {
  display: block;
  height: auto;
  padding: 0.6rem 1rem;
  font-size: 0.82rem;
  text-align: left;
  justify-content: flex-start;
  white-space: normal;
  line-height: 1.4;
  border-radius: 0;
}
.nav-dropdown .nav-link:hover { background: rgba(192,57,43,0.12); color: var(--c-fg); }
details[open] .nav-summary { color: var(--c-fg); background: rgba(245,245,240,0.06); }

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.4rem;
  background: var(--c-accent);
  color: var(--c-fg);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  min-height: 44px;
}
.btn-primary:hover, .btn-primary:focus {
  background: #e04030;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--c-accent-glow);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.4rem;
  border: 1.5px solid var(--c-border);
  color: var(--c-fg-dim);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
  min-height: 44px;
}
.btn-ghost:hover, .btn-ghost:focus {
  border-color: var(--c-accent);
  color: var(--c-fg);
  background: var(--c-accent-dim);
}

/* ===== 首页 Hero ===== */
.hero-section {
  padding: 3rem 0 2rem;
  min-height: 45vh;
  display: flex;
  align-items: center;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  width: 100%;
  position: relative;
}
.hero-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 280px;
  background: var(--c-card);
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
  z-index: 1;
  border-radius: var(--radius);
}
.hero-img-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  position: relative;
  z-index: 1;
}
.placeholder-char {
  font-size: 8rem;
  font-weight: 800;
  color: var(--c-accent);
  opacity: 0.3;
  font-family: var(--font-sans);
  line-height: 1;
}
.hero-text {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  text-align: right;
}
.hero-eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--c-accent);
  text-transform: uppercase;
}
.hero-h1 {
  font-family: var(--font-sans);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--c-fg);
  letter-spacing: -0.02em;
}
.hero-desc {
  font-size: 0.95rem;
  color: var(--c-fg-dim);
  line-height: 1.65;
  max-width: 380px;
  margin-left: auto;
}
.hero-cta {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* ===== 分区标题 ===== */
.section-header {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}
.section-title {
  font-family: var(--font-sans);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--c-fg);
  white-space: nowrap;
}
.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--c-border), transparent);
}

/* ===== 内容区 ===== */
.content-section { padding: 2rem 0 1rem; }
.content-inner { max-width: var(--max-content); }

/* ===== 频道卡片 ===== */
.channels-section { padding: 2rem 0; }
.channel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.channel-card {
  background: var(--c-card);
  border-radius: var(--radius);
  overflow: hidden;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.channel-card:hover {
  background: var(--c-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.5);
}
.channel-card-link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-rows: auto auto;
  gap: 0.35rem 0.75rem;
  padding: 1.25rem;
  align-items: start;
}
.channel-num {
  grid-row: 1 / 3;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 400;
  color: var(--c-accent);
  opacity: 0.7;
  line-height: 1;
}
.channel-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-fg);
  line-height: 1.3;
  grid-column: 2;
  grid-row: 1;
}
.channel-desc {
  font-size: 0.78rem;
  color: var(--c-fg-dim);
  line-height: 1.4;
  grid-column: 2;
  grid-row: 2;
}
.channel-arrow {
  grid-row: 1 / 3;
  align-self: center;
  font-size: 1rem;
  color: var(--c-accent);
  transition: transform var(--transition);
}
.channel-card:hover .channel-arrow { transform: translateX(4px); }

/* ===== 最新文章列表 ===== */
.recent-section { padding: 2rem 0 3rem; }
.article-list { display: flex; flex-direction: column; gap: 0; }
.article-item {
  border-bottom: 1px solid var(--c-border);
}
.article-item-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
  transition: color var(--transition), padding-left var(--transition);
}
.article-item-link:hover { color: var(--c-accent); padding-left: 0.5rem; }
.article-item-title {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--c-fg);
  flex: 1;
  line-height: 1.4;
  transition: color var(--transition);
}
.article-item-link:hover .article-item-title { color: var(--c-accent); }
.article-item-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-fg-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ===== 栏目页 ===== */
.channel-header {
  padding: 3.5rem 1.25rem 2rem;
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  position: relative;
}
.channel-header-inner { flex: 1; }
.channel-h1 {
  font-family: var(--font-sans);
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--c-fg);
  margin: 0.75rem 0 0.9rem;
}
.channel-desc {
  font-size: 1rem;
  color: var(--c-fg-dim);
  max-width: 600px;
  line-height: 1.65;
}
.channel-header-deco {
  flex-shrink: 0;
  pointer-events: none;
  user-select: none;
}
.deco-num {
  font-family: var(--font-sans);
  font-size: clamp(4rem, 10vw, 7rem);
  font-weight: 800;
  color: var(--c-accent);
  opacity: 0.08;
  line-height: 1;
  display: block;
}
.channel-main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}
.channel-article { margin-bottom: 2.5rem; }
.channel-content-wrap { max-width: var(--max-content); }
.channel-content { font-size: 1rem; line-height: 1.75; color: var(--c-fg-dim); }
.children-heading {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--c-fg);
  margin-bottom: 1.25rem;
  letter-spacing: -0.015em;
}
.children-list { display: flex; flex-direction: column; gap: 0; }
.children-item { border-bottom: 1px solid var(--c-border); }
.children-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 0;
  transition: padding-left var(--transition);
}
.children-link:hover { padding-left: 0.5rem; }
.children-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-accent);
  opacity: 0.7;
  flex-shrink: 0;
  width: 2rem;
}
.children-info { flex: 1; display: flex; flex-direction: column; gap: 0.2rem; }
.children-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--c-fg);
  line-height: 1.35;
  transition: color var(--transition);
}
.children-link:hover .children-title { color: var(--c-accent); }
.children-desc { font-size: 0.78rem; color: var(--c-fg-muted); line-height: 1.4; }
.children-date {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--c-fg-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

/* ===== 文章页布局 ===== */
.article-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2rem;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
  align-items: start;
}
.article-sidebar {
  position: sticky;
  top: 1rem;
  max-height: calc(100vh - var(--nav-h) - 2rem);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--c-border) transparent;
}
.sidebar-channel { margin-bottom: 1.25rem; }
.sidebar-channel-link {
  display: block;
  padding: 0.75rem 0.875rem;
  background: var(--c-accent-dim);
  border-left: 3px solid var(--c-accent);
  border-radius: 0 6px 6px 0;
  transition: background var(--transition);
}
.sidebar-channel-link:hover { background: rgba(192,57,43,0.22); }
.sidebar-channel-label {
  display: block;
  font-size: 0.65rem;
  color: var(--c-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.2rem;
}
.sidebar-channel-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--c-fg);
  line-height: 1.3;
}
.sidebar-list { margin-bottom: 1.25rem; }
.sidebar-item { border-bottom: 1px solid rgba(245,245,240,0.06); }
.sidebar-item-link {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.55rem 0.5rem;
  transition: background var(--transition);
  border-radius: 4px;
}
.sidebar-item-link:hover { background: rgba(245,245,240,0.04); }
.sidebar-item--active .sidebar-item-link { background: var(--c-accent-dim); }
.sidebar-item--active .sidebar-item-title { color: var(--c-accent); }
.sidebar-item-num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--c-fg-muted);
  flex-shrink: 0;
  margin-top: 0.15rem;
}
.sidebar-item-title {
  font-size: 0.78rem;
  color: var(--c-fg-dim);
  line-height: 1.4;
  transition: color var(--transition);
}
.sidebar-item-link:hover .sidebar-item-title { color: var(--c-fg); }
.sidebar-nav-links { padding-top: 0.75rem; border-top: 1px solid var(--c-border); }
.sidebar-home-link {
  font-size: 0.78rem;
  color: var(--c-fg-muted);
  transition: color var(--transition);
  padding: 0.4rem 0;
  display: block;
}
.sidebar-home-link:hover { color: var(--c-accent); }
.article-main { min-width: 0; }
.article-body {}
.article-meta-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.article-dates { display: flex; gap: 1rem; }
.article-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-fg-muted);
}
.article-date--mod { color: var(--c-fg-muted); opacity: 0.7; }
.article-h1 {
  font-family: var(--font-sans);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--c-fg);
  margin-bottom: 1rem;
}
.article-lead {
  font-size: 1.05rem;
  color: var(--c-fg-dim);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  font-style: italic;
  font-family: var(--font-serif);
}
.article-hero-fig {
  margin: 0 0 2rem;
  border-radius: var(--radius);
  overflow: hidden;
}
.article-hero-img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
}
.article-content-wrap { max-width: var(--max-content); }
.article-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-fg-dim);
}

/* ===== 文章内容样式 ===== */
.article-content h2,
.channel-content h2,
.about-content h2,
.privacy-content h2 {
  font-family: var(--font-sans);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--c-fg);
  margin: 2rem 0 0.75rem;
  letter-spacing: -0.015em;
  line-height: 1.3;
}
.article-content h3,
.channel-content h3,
.about-content h3,
.privacy-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--c-fg);
  margin: 1.5rem 0 0.5rem;
}
.article-content p,
.channel-content p,
.about-content p,
.privacy-content p {
  margin-bottom: 1rem;
}
.article-content a,
.channel-content a,
.about-content a,
.privacy-content a {
  color: var(--c-accent);
  text-decoration: underline;
  text-decoration-color: rgba(192,57,43,0.4);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--transition);
}
.article-content a:hover,
.channel-content a:hover,
.about-content a:hover,
.privacy-content a:hover {
  text-decoration-color: var(--c-accent);
}
.article-content ul,
.article-content ol,
.channel-content ul,
.about-content ul,
.privacy-content ul,
.privacy-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.privacy-content ul { list-style: disc; }
.privacy-content ol { list-style: decimal; }
.about-content ul { list-style: disc; }
.article-content li,
.channel-content li,
.about-content li,
.privacy-content li {
  margin-bottom: 0.35rem;
}
.article-content strong,
.channel-content strong,
.about-content strong,
.privacy-content strong {
  color: var(--c-fg);
  font-weight: 700;
}
.article-content blockquote {
  border-left: 3px solid var(--c-accent);
  padding: 0.75rem 1rem;
  margin: 1.5rem 0;
  background: var(--c-accent-dim);
  border-radius: 0 6px 6px 0;
  color: var(--c-fg-dim);
  font-style: italic;
}
.article-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: rgba(245,245,240,0.08);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  color: var(--c-fg);
}
.article-content pre {
  background: var(--c-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}
.article-content pre code { background: none; padding: 0; }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.88rem;
}
.article-content th,
.article-content td {
  border: 1px solid var(--c-border);
  padding: 0.6rem 0.875rem;
  text-align: left;
}
.article-content th {
  background: var(--c-card);
  font-weight: 700;
  color: var(--c-fg);
}
.article-content td { color: var(--c-fg-dim); }
.article-content time { color: var(--c-accent); font-family: var(--font-mono); font-size: 0.85em; }

/* ===== 上下篇 ===== */
.article-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--c-border);
}
.pager-link {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1rem;
  background: var(--c-card);
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}
.pager-link:hover { background: var(--c-card-hover); transform: translateY(-2px); }
.pager-link--next { text-align: right; }
.pager-dir {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--c-accent);
  text-transform: uppercase;
}
.pager-title {
  font-size: 0.85rem;
  color: var(--c-fg-dim);
  line-height: 1.4;
}
.pager-empty {}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.breadcrumb-link {
  font-size: 0.78rem;
  color: var(--c-fg-muted);
  transition: color var(--transition);
}
.breadcrumb-link:hover { color: var(--c-accent); }
.breadcrumb-sep { color: var(--c-fg-muted); font-size: 0.72rem; }
.breadcrumb-current { font-size: 0.78rem; color: var(--c-fg-dim); }
.breadcrumb-row { margin-bottom: 0.75rem; }

/* ===== About页 ===== */
.about-layout { max-width: var(--max-w); margin: 0 auto; padding: 0 1.25rem 4rem; }
.about-banner {
  padding: 3.5rem 0 2rem;
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  position: relative;
  overflow: hidden;
}
.about-banner-inner { flex: 1; }
.about-eyebrow {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--c-accent);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}
.about-h1 {
  font-family: var(--font-sans);
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--c-fg);
  margin-bottom: 0.9rem;
}
.about-desc { font-size: 1rem; color: var(--c-fg-dim); max-width: 560px; line-height: 1.65; }
.about-banner-deco {
  flex-shrink: 0;
  pointer-events: none;
  user-select: none;
  align-self: flex-end;
}
.deco-word {
  font-family: var(--font-sans);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  color: var(--c-fg);
  opacity: 0.04;
  letter-spacing: 0.05em;
  display: block;
  line-height: 1;
}
.about-main {}
.about-article { margin-bottom: 2.5rem; }
.about-content-wrap { max-width: var(--max-content); }
.about-content { font-size: 1rem; line-height: 1.8; color: var(--c-fg-dim); }
.about-links-block {
  background: var(--c-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 480px;
}
.about-links-heading {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-fg);
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}
.about-quick-links { display: flex; flex-direction: column; gap: 0.1rem; }
.about-quick-links li {}
.about-quick-links a {
  display: block;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  color: var(--c-fg-dim);
  border-radius: 6px;
  transition: background var(--transition), color var(--transition);
  min-height: 40px;
  display: flex;
  align-items: center;
}
.about-quick-links a:hover { background: var(--c-accent-dim); color: var(--c-fg); }

/* ===== Privacy页 ===== */
.privacy-layout { max-width: 780px; margin: 0 auto; padding: 0 1.25rem 4rem; }
.privacy-banner { padding: 3rem 0 2rem; border-bottom: 1px solid var(--c-border); margin-bottom: 2rem; }
.privacy-h1 {
  font-family: var(--font-sans);
  font-size: clamp(1.6rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--c-fg);
  margin: 0.75rem 0 0.5rem;
}
.privacy-updated {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-fg-muted);
  margin-top: 0.5rem;
}
.privacy-article { margin-bottom: 2rem; }
.privacy-content-wrap { max-width: 680px; }
.privacy-content { font-size: 1rem; line-height: 1.8; color: var(--c-fg-dim); }
.privacy-footer-links {
  display: flex;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--c-border);
}
.privacy-footer-links a {
  font-size: 0.85rem;
  color: var(--c-accent);
  transition: opacity var(--transition);
  min-height: 40px;
  display: flex;
  align-items: center;
}
.privacy-footer-links a:hover { opacity: 0.75; }

/* ===== 页脚 ===== */
.site-footer {
  background: #080808;
  border-top: 1px solid var(--c-border);
  margin-top: 4rem;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3rem 1.25rem 1.5rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
}
.footer-brand {
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--c-fg);
  display: block;
  margin-bottom: 0.6rem;
  letter-spacing: -0.02em;
}
.footer-tagline { font-size: 0.8rem; color: var(--c-fg-muted); line-height: 1.55; }
.footer-heading {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-fg-muted);
  margin-bottom: 0.875rem;
}
.footer-links { display: flex; flex-direction: column; gap: 0.1rem; }
.footer-links a {
  font-size: 0.85rem;
  color: var(--c-fg-dim);
  padding: 0.3rem 0;
  min-height: 40px;
  display: flex;
  align-items: center;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--c-accent); }
.footer-bar {
  border-top: 1px solid var(--c-border);
  padding: 1rem 1.25rem;
  max-width: var(--max-w);
  margin: 0 auto;
}
.footer-copy { font-size: 0.72rem; color: var(--c-fg-muted); }

/* ===== 动效：JS 驱动基础类 ===== */
.js-split-reveal .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.4em);
  animation: charReveal 0.5s cubic-bezier(0.2,0.8,0.4,1) forwards;
}
@keyframes charReveal {
  to { opacity: 1; transform: translateY(0); }
}
.js-fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.js-fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.js-type-in {
  overflow: hidden;
  white-space: nowrap;
  border-right: 2px solid var(--c-accent);
  width: 0;
  animation: typeIn 0.9s steps(20, end) 0.2s forwards, blinkCaret 0.8s step-end 1.1s 3;
}
@keyframes typeIn {
  to { width: 100%; }
}
@keyframes blinkCaret {
  50% { border-color: transparent; }
}

/* ===== Parallax / scroll hint ===== */
.channel-card, .article-item, .children-item {
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}

/* ===== prefers-reduced-motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .js-type-in { width: 100%; border-right: none; animation: none; }
  .js-split-reveal .char { opacity: 1; transform: none; animation: none; }
  .js-fade-up { opacity: 1; transform: none; }
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .hero-text { text-align: left; }
  .hero-cta { justify-content: flex-start; }
  .hero-desc { margin-left: 0; }
  .hero-media { min-height: 220px; }
  .channel-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  .footer-col--brand { grid-column: 1 / -1; }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; max-height: none; margin-bottom: 1.5rem; }
  .article-pager { grid-template-columns: 1fr; }
  .pager-link--next { text-align: left; }
  .channel-header { flex-direction: column; gap: 0; }
  .channel-header-deco { display: none; }
  .about-banner { flex-direction: column; gap: 0; }
  .about-banner-deco { display: none; }
}
@media (max-width: 600px) {
  :root { --nav-h: 52px; }
  .page-body { padding: 0 0.875rem; }
  .channel-header { padding: 2.5rem 0.875rem 1.5rem; }
  .channel-main { padding: 0 0.875rem 2.5rem; }
  .article-layout { padding: 1.5rem 0.875rem 3rem; }
  .about-layout { padding: 0 0.875rem 3rem; }
  .about-banner { padding: 2.5rem 0 1.5rem; }
  .privacy-layout { padding: 0 0.875rem 3rem; }
  .privacy-banner { padding: 2rem 0 1.5rem; }
  .footer-inner { grid-template-columns: 1fr 1fr; padding: 2rem 0.875rem 1rem; gap: 1.25rem; }
  .footer-col--brand { grid-column: 1 / -1; }
  .hero-section { padding: 2rem 0 1.5rem; min-height: auto; }
  .nav-link { padding: 0 0.5rem; font-size: 0.72rem; }
  .nav-summary { padding: 0 0.5rem; font-size: 0.72rem; }
  .article-meta-top { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .channels-section, .recent-section, .content-section { padding: 1.5rem 0; }
}
@media (max-width: 375px) {
  .hero-h1 { font-size: 1.75rem; }
  .channel-h1 { font-size: 1.65rem; }
  .article-h1 { font-size: 1.5rem; }
  .about-h1 { font-size: 1.5rem; }
  .nav-list { gap: 0; }
  .nav-link, .nav-summary { padding: 0 0.35rem; }
}