@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;500;600;700&family=Libre+Baskerville:wght@400;700&display=swap');

/* ===== CSS 变量 ===== */
:root {
  --c-primary: #ff0080;
  --c-secondary: #ff00ff;
  --c-dark: #26171f;
  --c-dark-2: #301d27;
  --c-dark-3: #3d2233;
  --c-dark-4: #1a0f16;
  --c-text: #f0e6ee;
  --c-text-muted: #c8a8c0;
  --c-text-dim: #8a6080;
  --c-border: rgba(255, 0, 128, 0.2);
  --c-border-bright: rgba(255, 0, 255, 0.35);
  --c-card-bg: rgba(48, 29, 39, 0.85);
  --c-glow-pink: rgba(255, 0, 128, 0.4);
  --c-glow-mag: rgba(255, 0, 255, 0.3);
  --radius-card: 28px;
  --radius-sm: 12px;
  --radius-btn: 50px;
  --font-serif: 'Cormorant Garamond', 'Libre Baskerville', Georgia, 'Times New Roman', serif;
  --font-body: 'Libre Baskerville', Georgia, serif;
  --shadow-card: 0 8px 32px rgba(255, 0, 128, 0.15), 0 2px 8px rgba(0,0,0,0.4);
  --shadow-card-hover: 0 16px 48px rgba(255, 0, 255, 0.25), 0 4px 16px rgba(0,0,0,0.5);
  --nav-w: 240px;
  --header-h: 60px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 17px; scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background-color: var(--c-dark);
  color: var(--c-text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--c-secondary); }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; }

/* ===== 极光渐变背景动画 ===== */
@keyframes aurora-flow {
  0%   { background-position: 0% 50%; filter: hue-rotate(0deg); }
  50%  { background-position: 100% 50%; filter: hue-rotate(30deg); }
  100% { background-position: 0% 50%; filter: hue-rotate(0deg); }
}

@keyframes orb-float {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.7; }
  50% { transform: translateY(-20px) scale(1.08); opacity: 1; }
}

@keyframes shimmer-sweep {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes reveal-up {
  from { opacity: 0; transform: translateY(32px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes stagger-in {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== 极光背景面板 ===== */
.hero-aurora,
.channel-aurora,
.article-aurora,
.about-aurora,
.privacy-aurora {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    #26171f 0%,
    #3d1040 20%,
    #ff0080 40%,
    #ff00ff 60%,
    #3d1040 80%,
    #26171f 100%
  );
  background-size: 300% 300%;
  animation: aurora-flow 12s ease-in-out infinite;
  opacity: 0.45;
  z-index: 0;
  pointer-events: none;
}

/* ===== 站点骨架 ===== */
.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== 顶部导航（横排，header > nav > p > a） ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(26, 15, 22, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0 1.5rem;
  height: var(--header-h);
  flex-wrap: wrap;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
  text-decoration: none;
}

.brand-logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

.site-nav {
  flex: 1;
  overflow-x: auto;
}

.site-nav p {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
  align-items: center;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 0.85rem;
  min-height: 40px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--c-text-muted);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
  letter-spacing: 0.02em;
}

.nav-link:hover {
  color: var(--c-text);
  background: rgba(255, 0, 128, 0.12);
}

.nav-link--active {
  color: var(--c-primary);
  background: rgba(255, 0, 128, 0.15);
}

/* ===== 主体 ===== */
.site-main {
  flex: 1;
}

/* main > div > section（三层直接嵌套） */
.home-article,
.channel-article,
.about-article,
.privacy-article,
.article-body {
  display: block;
}

/* ===== Hero（首页） ===== */
.hero-section {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-dark-4);
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding: 4rem 2rem 4rem 3rem;
}

.hero-badge {
  display: inline-block;
  padding: 0.3rem 1rem;
  border: 1px solid var(--c-primary);
  border-radius: var(--radius-btn);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--c-primary);
  margin-bottom: 1.2rem;
  background: rgba(255, 0, 128, 0.08);
}

.hero-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #fff 0%, var(--c-primary) 50%, var(--c-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-lead {
  font-size: 1rem;
  color: var(--c-text-muted);
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-deco {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.deco-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  mix-blend-mode: screen;
}

.deco-orb--1 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(255,0,128,0.5) 0%, transparent 70%);
  right: -80px; top: -80px;
  animation: orb-float 7s ease-in-out infinite;
}

.deco-orb--2 {
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(255,0,255,0.45) 0%, transparent 70%);
  right: 30%; bottom: -60px;
  animation: orb-float 9s ease-in-out infinite reverse;
}

.deco-orb--3 {
  width: 180px; height: 180px;
  background: radial-gradient(circle, rgba(255,100,200,0.4) 0%, transparent 70%);
  left: 60%; top: 20%;
  animation: orb-float 6s ease-in-out infinite;
  animation-delay: -3s;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.8rem;
  min-height: 44px;
  border-radius: var(--radius-btn);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
  text-decoration: none;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
  color: #fff;
  box-shadow: 0 4px 20px rgba(255, 0, 128, 0.4);
}

.btn-primary:hover {
  box-shadow: 0 8px 30px rgba(255, 0, 255, 0.5);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--c-text);
  border: 1.5px solid var(--c-border-bright);
}

.btn-outline:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: rgba(255, 0, 128, 0.08);
}

/* ===== 内容区 + 侧边栏布局 ===== */
.content-section,
.channel-body-section,
.article-content-section,
.about-content-section,
.privacy-content-section {
  padding: 3rem 0;
}

.content-inner,
.channel-content-wrap,
.article-content-wrap,
.about-content-wrap,
.privacy-content-wrap {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2.5rem;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 2rem;
  align-items: start;
}

/* ===== 侧边栏 ===== */
.sidebar {
  position: sticky;
  top: calc(var(--header-h) + 1.5rem);
  background: var(--c-card-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 1.5rem 1.2rem;
  backdrop-filter: blur(8px);
}

.sidebar small {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--c-primary);
  margin-top: 1.2rem;
  margin-bottom: 0.3rem;
  text-transform: uppercase;
}

.sidebar small:first-child { margin-top: 0; }

.sidebar-title,
.sidebar-subtitle {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 0.7rem;
}

.sidebar-subtitle { font-size: 0.9rem; }

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-bottom: 0.5rem;
}

.sidebar-links li a {
  display: block;
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.83rem;
  color: var(--c-text-muted);
  transition: background var(--transition), color var(--transition);
}

.sidebar-links li a:hover {
  background: rgba(255, 0, 128, 0.1);
  color: var(--c-primary);
}

/* ===== 首页 content-inner 特殊 ===== */
.content-inner {
  grid-template-columns: 1fr 260px;
}

.content-inner .page-content-block {
  min-width: 0;
}

/* 正文 prose */
.prose-body,
.page-content,
.channel-prose .page-content {
  line-height: 1.8;
  font-size: 1rem;
  color: var(--c-text);
}

.prose-body h2,
.prose-body h3,
.page-content h2,
.page-content h3 {
  font-family: var(--font-serif);
  color: var(--c-text);
  margin-top: 2rem;
  margin-bottom: 0.7rem;
  line-height: 1.3;
}

.prose-body h2, .page-content h2 { font-size: 1.4rem; }
.prose-body h3, .page-content h3 { font-size: 1.15rem; }

.prose-body p, .page-content p { margin-bottom: 1rem; }

.prose-body ul, .prose-body ol,
.page-content ul, .page-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  list-style: disc;
}

.prose-body a, .page-content a {
  color: var(--c-primary);
  text-decoration: underline;
  text-decoration-color: rgba(255, 0, 128, 0.4);
}

.prose-body a:hover, .page-content a:hover {
  color: var(--c-secondary);
}

.prose-body time, .page-content time {
  color: var(--c-text-muted);
  font-size: 0.85rem;
}

/* ===== 板块标题 ===== */
.section-head {
  text-align: center;
  margin-bottom: 2.5rem;
  padding: 0 1rem;
}

.section-head small {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--c-primary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--c-text) 30%, var(--c-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== 频道卡片 / 文章卡片 ===== */
.channels-section,
.articles-section {
  padding: 3rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.5rem;
}

.card-grid--3 {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.card {
  position: relative;
  background: var(--c-card-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

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

.card-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,0,128,0.06) 0%, rgba(255,0,255,0.06) 100%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.card:hover .card-glow { opacity: 1; }

.card-body {
  padding: 1.5rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
}

.card-title a {
  color: var(--c-text);
}

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

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

.card-date {
  font-size: 0.78rem;
  color: var(--c-text-dim);
}

.card-count {
  font-size: 0.78rem;
  color: var(--c-secondary);
  letter-spacing: 0.06em;
}

.card-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.5rem;
  padding: 0.5rem 1.2rem;
  min-height: 40px;
  border-radius: var(--radius-btn);
  font-size: 0.82rem;
  font-weight: 600;
  background: linear-gradient(90deg, rgba(255,0,128,0.15), rgba(255,0,255,0.15));
  color: var(--c-primary);
  border: 1px solid var(--c-border);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.card-cta:hover {
  background: linear-gradient(90deg, rgba(255,0,128,0.3), rgba(255,0,255,0.3));
  border-color: var(--c-primary);
  color: #fff;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  font-size: 0.82rem;
  color: var(--c-text-dim);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--c-text-muted);
}

.breadcrumb a:hover {
  color: var(--c-primary);
}

/* ===== 频道 Hero ===== */
.channel-hero {
  position: relative;
  padding: 3.5rem 2rem 2.5rem;
  background: var(--c-dark-4);
  overflow: hidden;
}

.channel-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.channel-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 0.8rem;
  line-height: 1.25;
  background: linear-gradient(135deg, #fff 0%, var(--c-primary) 60%, var(--c-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.channel-lead {
  font-size: 1rem;
  color: var(--c-text-muted);
  margin-bottom: 1rem;
}

.channel-badge {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  border: 1px solid var(--c-secondary);
  border-radius: var(--radius-btn);
  font-size: 0.75rem;
  color: var(--c-secondary);
  letter-spacing: 0.08em;
  background: rgba(255, 0, 255, 0.08);
}

/* ===== 频道正文区 ===== */
.channel-prose {
  min-width: 0;
}

.channel-prose .page-content {
  margin-bottom: 2.5rem;
}

/* ===== 子页列表 dl（契约必需） ===== */
.child-list-block {
  padding-top: 1rem;
}

.child-list-block small {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--c-primary);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}

.child-list-block h2 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: var(--c-text);
}

.child-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.child-list dt {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
}

.child-list dt a {
  color: var(--c-text);
  display: inline-block;
  padding: 0.15rem 0;
  position: relative;
}

.child-list dt a::after {
  content: '';
  display: block;
  height: 1px;
  width: 0;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  transition: width var(--transition);
  position: absolute;
  bottom: 0; left: 0;
}

.child-list dt a:hover::after { width: 100%; }
.child-list dt a:hover { color: var(--c-primary); }

.child-list dd {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  line-height: 1.6;
  padding-left: 0.5rem;
  border-left: 2px solid var(--c-border);
}

.child-date {
  display: inline-block;
  margin-right: 0.8rem;
  color: var(--c-text-dim);
  font-size: 0.78rem;
}

.empty-tip {
  color: var(--c-text-dim);
  font-style: italic;
  font-size: 0.9rem;
}

/* ===== 文章 Hero ===== */
.article-header-section {
  position: relative;
  padding: 3rem 2rem 2rem;
  background: var(--c-dark-4);
  overflow: hidden;
}

.article-aurora {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    #26171f 0%, #3d1040 25%, #ff0080 50%, #ff00ff 70%, #26171f 100%
  );
  background-size: 300% 300%;
  animation: aurora-flow 14s ease-in-out infinite;
  opacity: 0.3;
  z-index: 0;
}

.article-meta-bar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.article-dates {
  font-size: 0.8rem;
  color: var(--c-text-dim);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.date-label {
  color: var(--c-text-dim);
}

.article-h1 {
  position: relative;
  z-index: 2;
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 0.7rem;
  background: linear-gradient(135deg, #fff 0%, var(--c-primary) 55%, var(--c-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.article-lead {
  position: relative;
  z-index: 2;
  font-size: 1rem;
  color: var(--c-text-muted);
  max-width: 680px;
}

/* ===== 文章内容区 ===== */
.article-content-wrap {
  padding-top: 2.5rem;
  padding-bottom: 3rem;
}

.article-prose {
  min-width: 0;
}

/* ===== 关于页 ===== */
.about-hero-section {
  position: relative;
  padding: 3rem 2rem 2rem;
  background: var(--c-dark-4);
  overflow: hidden;
}

.about-aurora {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #26171f 0%, #3d1040 30%, #ff0080 55%, #ff00ff 80%, #26171f 100%);
  background-size: 300% 300%;
  animation: aurora-flow 10s ease-in-out infinite;
  opacity: 0.35;
  z-index: 0;
}

.about-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.about-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 0.8rem;
  background: linear-gradient(135deg, #fff 0%, var(--c-primary) 55%, var(--c-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-lead {
  font-size: 1rem;
  color: var(--c-text-muted);
}

.about-content-wrap {
  padding-top: 2.5rem;
  padding-bottom: 3rem;
}

.about-prose {
  min-width: 0;
}

.about-prose small {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--c-primary);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}

.about-prose h2 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: var(--c-text);
}

/* ===== 隐私政策 ===== */
.privacy-header-section {
  position: relative;
  padding: 3rem 2rem 2rem;
  background: var(--c-dark-4);
  overflow: hidden;
}

.privacy-aurora {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #26171f 0%, #3d1040 30%, #ff0080 55%, #ff00ff 80%, #26171f 100%);
  background-size: 300% 300%;
  animation: aurora-flow 16s ease-in-out infinite;
  opacity: 0.28;
  z-index: 0;
}

.privacy-header-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.privacy-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #fff 0%, var(--c-primary) 55%, var(--c-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.privacy-updated {
  font-size: 0.82rem;
  color: var(--c-text-dim);
}

.privacy-content-wrap {
  padding-top: 2.5rem;
  padding-bottom: 3rem;
}

.privacy-prose {
  min-width: 0;
}

/* ===== 页脚（footer > address + ul，三栏） ===== */
.site-footer {
  background: var(--c-dark-4);
  border-top: 1px solid var(--c-border);
  padding: 0;
  margin-top: 2rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 2rem;
  max-width: 1140px;
  margin: 0 auto;
  padding: 3rem 2rem 2rem;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 700;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 0.6rem;
}

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

.footer-links-col small,
.footer-contact-col small {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--c-primary);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}

.footer-col-title {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 0.8rem;
}

.footer-links-col ul,
.footer-contact-col ul {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.footer-links-col ul li a,
.footer-contact-col ul li a {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  padding: 0.25rem 0;
  display: block;
}

.footer-links-col ul li a:hover,
.footer-contact-col ul li a:hover {
  color: var(--c-primary);
}

.footer-contact-col address {
  font-style: normal;
  font-size: 0.82rem;
  color: var(--c-text-muted);
  line-height: 1.7;
}

.footer-contact-col address p {
  margin-bottom: 0.5rem;
}

.footer-contact-col address a {
  color: var(--c-primary);
  font-weight: 600;
}

.footer-bottom {
  border-top: 1px solid var(--c-border);
  text-align: center;
  padding: 1rem 2rem;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--c-text-dim);
}

.footer-bottom a {
  color: var(--c-text-muted);
  margin: 0 0.3rem;
}

.footer-bottom a:hover { color: var(--c-primary); }

/* ===== small + h2/h3（同级紧邻，契约） ===== */
small + h2,
small + h3 {
  margin-top: 0;
}

/* ===== 滚动揭示动效 ===== */
.reveal-section {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-item {
  opacity: 0;
  transform: translateY(20px);
}

.reveal-item.is-visible {
  animation: stagger-in 0.5s ease forwards;
}

/* ===== 霓虹分割线 ===== */
hr.aurora-hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-primary), var(--c-secondary), transparent);
  margin: 2rem 0;
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .content-inner,
  .channel-content-wrap,
  .article-content-wrap,
  .about-content-wrap,
  .privacy-content-wrap {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    margin-top: 2rem;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand-col {
    grid-column: span 2;
  }
}

@media (max-width: 640px) {
  :root { --header-h: auto; }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.8rem 1rem;
    height: auto;
    gap: 0.6rem;
  }

  .site-nav p {
    gap: 0.1rem;
  }

  .nav-link {
    padding: 0.5rem 0.65rem;
    font-size: 0.78rem;
    min-height: 40px;
  }

  .hero-inner {
    padding: 3rem 1.2rem;
  }

  .hero-h1 { font-size: 1.6rem; }

  .hero-actions {
    flex-direction: column;
  }

  .btn { width: 100%; }

  .channels-section,
  .articles-section {
    padding: 2rem 1rem;
  }

  .card-grid,
  .card-grid--3 {
    grid-template-columns: 1fr;
  }

  .content-inner,
  .channel-content-wrap,
  .article-content-wrap,
  .about-content-wrap,
  .privacy-content-wrap {
    padding: 0 1rem;
  }

  .channel-hero,
  .article-header-section,
  .about-hero-section,
  .privacy-header-section {
    padding: 2rem 1rem 1.5rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    padding: 2rem 1rem 1.5rem;
  }

  .footer-brand-col {
    grid-column: span 1;
  }

  .content-section,
  .channel-body-section,
  .article-content-section,
  .about-content-section,
  .privacy-content-section {
    padding: 1.5rem 0;
  }
}

/* ===== prefers-reduced-motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal-section,
  .reveal-item {
    opacity: 1;
    transform: none;
    transition: none;
  }
}