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

/* ===== CSS 变量 ===== */
:root {
  --c-red: #ff0000;
  --c-pink: #ff1493;
  --c-dark: #261717;
  --c-dark2: #1a0f0f;
  --c-dark3: #0e0808;
  --c-text: #f5e6e6;
  --c-text-muted: #c9a8a8;
  --c-text-faint: #8a6060;
  --c-surface: rgba(38,23,23,0.85);
  --c-surface2: rgba(60,28,28,0.7);
  --c-border: rgba(255,20,147,0.18);
  --c-glow: rgba(255,0,0,0.3);
  --c-glow2: rgba(255,20,147,0.25);
  --radius-card: 18px;
  --nav-h: 64px;
  --font: 'Noto Sans Hebrew', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  --max-w: 1200px;
  --prose-w: 720px;
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--c-dark3);
  color: var(--c-text);
  font-size: 17px;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
}
ol { list-style: none; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* ===== Aurora 背景 ===== */
.aurora-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.aurora-mesh {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  mix-blend-mode: screen;
}
.aurora-1 {
  width: 70vw;
  height: 70vw;
  background: radial-gradient(circle at center, #ff0000 0%, transparent 70%);
  top: -20vw;
  left: -10vw;
  animation: aurora-drift1 10s ease-in-out infinite alternate;
}
.aurora-2 {
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle at center, #ff1493 0%, transparent 70%);
  bottom: -15vw;
  right: -10vw;
  animation: aurora-drift2 12s ease-in-out infinite alternate;
}
.aurora-3 {
  width: 50vw;
  height: 50vw;
  background: conic-gradient(from 180deg at 50% 50%, #ff0000 0%, #ff1493 50%, transparent 100%);
  top: 30%;
  left: 30%;
  opacity: 0.25;
  animation: aurora-spin 14s linear infinite;
}
.aurora-bg--muted .aurora-1 { opacity: 0.25; }
.aurora-bg--muted .aurora-2 { opacity: 0.2; }
.aurora-bg--muted .aurora-3 { opacity: 0.1; }

@keyframes aurora-drift1 {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(8vw, 6vw) scale(1.12); }
}
@keyframes aurora-drift2 {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(-6vw, -8vw) scale(1.1); }
}
@keyframes aurora-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .aurora-mesh { animation: none !important; }
}

/* ===== 页面骨架 ===== */
.page-wrap {
  position: relative;
  z-index: 1;
  padding-bottom: calc(var(--nav-h) + 2rem);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  width: 100%;
  height: 45vh;
  min-height: 260px;
  max-height: 520px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.hero--slim { height: 28vh; min-height: 160px; }
.hero--channel { height: 38vh; }

.hero-media {
  position: absolute;
  inset: 0;
}
.hero-media .hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(38,23,23,0.92) 0%,
    rgba(38,23,23,0.6) 50%,
    rgba(255,20,147,0.15) 100%
  );
  z-index: 1;
}

/* 斜切色带 */
.hero-slash {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(
    -12deg,
    transparent 55%,
    rgba(255,0,0,0.18) 55%,
    rgba(255,20,147,0.22) 60%,
    transparent 60%
  );
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  padding: 2rem 2rem 2.5rem;
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  text-align: left;
}

.eyebrow-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--c-pink);
  background: rgba(255,20,147,0.12);
  border: 1px solid rgba(255,20,147,0.3);
  border-radius: 4px;
  padding: 0.2em 0.7em;
  margin-bottom: 0.7rem;
  text-transform: uppercase;
}
.eyebrow-link { color: var(--c-pink); }

.hero-h1 {
  font-size: clamp(1.6rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  text-shadow: 0 2px 24px rgba(255,0,0,0.5);
  margin-bottom: 0.6rem;
}
.hero-desc {
  font-size: 1rem;
  color: var(--c-text-muted);
  max-width: 560px;
  margin-bottom: 1.2rem;
}
.hero-date {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  display: block;
  margin-top: 0.4rem;
}
.hero-cta {
  display: inline-block;
  background: linear-gradient(90deg, var(--c-red), var(--c-pink));
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.65em 1.6em;
  border-radius: 40px;
  box-shadow: 0 4px 20px rgba(255,0,0,0.35);
  transition: transform 0.2s, box-shadow 0.2s;
  min-height: 44px;
  line-height: 1.6;
}
.hero-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(255,20,147,0.45); }

/* ===== 内容壳 ===== */
.content-shell {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2rem 1.25rem 0;
}
.content-shell--narrow { max-width: 900px; }

/* ===== 面包屑 ===== */
.breadcrumb-bar {
  font-size: 0.82rem;
  color: var(--c-text-faint);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.3em;
}
.breadcrumb-bar a { color: var(--c-text-muted); transition: color 0.2s; }
.breadcrumb-bar a:hover { color: var(--c-pink); }
.bc-sep { color: var(--c-text-faint); }

/* ===== 版块标题 ===== */
.section-heading {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1.2rem;
  padding-left: 0.8rem;
  border-left: 3px solid var(--c-pink);
  letter-spacing: 0.02em;
}
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-text-faint);
  margin-bottom: 0.8rem;
  text-transform: uppercase;
}

/* ===== 首页布局 ===== */
.home-main {
  margin-bottom: 2.5rem;
}
.home-article .prose {
  background: var(--c-surface);
  border-radius: var(--radius-card);
  padding: 2rem;
  backdrop-filter: blur(12px);
  border: 1px solid var(--c-border);
}

.channels-section { margin-bottom: 3rem; }
.channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.2rem;
}
.channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background: var(--c-surface2);
  border-radius: var(--radius-card);
  padding: 1.5rem 1.4rem 1.4rem;
  overflow: hidden;
  backdrop-filter: blur(12px);
  border: 1px solid var(--c-border);
  transition: transform 0.25s, box-shadow 0.25s;
  cursor: pointer;
}
.channel-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(255,0,0,0.22);
}
.channel-card-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 10%, rgba(255,20,147,0.18) 0%, transparent 60%);
  pointer-events: none;
}
.channel-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
}
.channel-card-desc {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  line-height: 1.5;
  flex: 1;
}
.channel-card-count {
  font-size: 0.78rem;
  color: var(--c-pink);
  font-weight: 500;
  margin-top: 0.3rem;
}

.latest-section { margin-bottom: 2rem; }
.article-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.article-entry {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 1.2rem;
  background: var(--c-surface);
  border-radius: 10px;
  border: 1px solid var(--c-border);
  transition: background 0.2s, transform 0.2s;
}
.article-entry:hover {
  background: var(--c-surface2);
  transform: translateX(4px);
}
.article-entry-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--c-red);
  background: rgba(255,0,0,0.1);
  border-radius: 4px;
  padding: 0.15em 0.5em;
  flex-shrink: 0;
}
.article-entry-title {
  flex: 1;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--c-text);
}
.article-entry-date {
  font-size: 0.78rem;
  color: var(--c-text-faint);
  flex-shrink: 0;
}

/* ===== 栏目页布局 ===== */
.channel-layout {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 820px) {
  .channel-layout { grid-template-columns: 1fr; }
}

.channel-main .prose {
  background: var(--c-surface);
  border-radius: var(--radius-card);
  padding: 2rem;
  backdrop-filter: blur(12px);
  border: 1px solid var(--c-border);
  margin-bottom: 2rem;
}

.children-section { margin-top: 1rem; }
.child-grid {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.child-block {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1.1rem 1.3rem;
  background: var(--c-surface2);
  border-radius: var(--radius-card);
  border: 1px solid var(--c-border);
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
  overflow: hidden;
}
.child-block::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--c-red), var(--c-pink));
  border-radius: 3px 0 0 3px;
}
.child-block:hover {
  transform: translateX(3px);
  box-shadow: 0 6px 24px rgba(255,20,147,0.18);
}
.child-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
}
.child-desc {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  line-height: 1.5;
}
.child-date {
  font-size: 0.75rem;
  color: var(--c-text-faint);
}
.no-children { color: var(--c-text-muted); font-size: 0.9rem; }

/* ===== 文章页布局 ===== */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 820px) {
  .article-layout { grid-template-columns: 1fr; }
}
.article-main { min-width: 0; }
.article-body {
  background: var(--c-surface);
  border-radius: var(--radius-card);
  padding: 2rem;
  backdrop-filter: blur(12px);
  border: 1px solid var(--c-border);
  margin-bottom: 1.5rem;
}
.article-meta-bar {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 1.4rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--c-border);
}
.meta-date {
  font-size: 0.8rem;
  color: var(--c-text-muted);
}

.article-pagination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}
.pag-btn {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1rem 1.1rem;
  background: var(--c-surface2);
  border-radius: 12px;
  border: 1px solid var(--c-border);
  transition: background 0.2s, transform 0.2s;
}
.pag-btn:hover { background: var(--c-surface); transform: translateY(-2px); }
.pag-next { text-align: right; }
.pag-label {
  font-size: 0.72rem;
  color: var(--c-text-faint);
  font-weight: 600;
  letter-spacing: 0.06em;
}
.pag-title {
  font-size: 0.9rem;
  color: var(--c-text);
  font-weight: 500;
  line-height: 1.4;
}

/* ===== 关于页布局 ===== */
.about-header {
  position: relative;
  padding: 5rem 1.25rem 3rem;
  overflow: hidden;
  text-align: left;
}
.about-header-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(255,0,0,0.2) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 50%, rgba(255,20,147,0.15) 0%, transparent 60%);
  pointer-events: none;
}
.about-header-content {
  position: relative;
  max-width: var(--max-w);
  margin: 0 auto;
}
.about-h1 {
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.8rem;
  line-height: 1.2;
  text-shadow: 0 2px 20px rgba(255,0,0,0.4);
}
.about-lead {
  font-size: 1rem;
  color: var(--c-text-muted);
  max-width: 560px;
}
.about-layout {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 820px) {
  .about-layout { grid-template-columns: 1fr; }
}
.about-article {
  background: var(--c-surface);
  border-radius: var(--radius-card);
  padding: 2rem;
  backdrop-filter: blur(12px);
  border: 1px solid var(--c-border);
}
.about-stats { display: flex; flex-direction: column; gap: 0.5rem; }
.stat-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--c-border);
}
.stat-row dt { color: var(--c-text-muted); }
.stat-row dd { color: #fff; font-weight: 700; }

/* ===== 隐私页 ===== */
.privacy-header {
  padding: 4rem 1.25rem 2.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
}
.privacy-h1 {
  font-size: clamp(1.5rem, 4vw, 2.6rem);
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}
.privacy-date {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  display: block;
  margin-top: 0.5rem;
}
.privacy-layout {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 820px) {
  .privacy-layout { grid-template-columns: 1fr; }
}
.privacy-article {
  background: var(--c-surface);
  border-radius: var(--radius-card);
  padding: 2rem;
  backdrop-filter: blur(12px);
  border: 1px solid var(--c-border);
}
.privacy-update-notice {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  margin-bottom: 1.5rem;
  padding: 0.6rem 1rem;
  background: rgba(255,20,147,0.07);
  border-radius: 8px;
  border-left: 3px solid var(--c-pink);
}

/* ===== 侧边栏 ===== */
.channel-aside,
.article-aside,
.about-aside,
.privacy-aside {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  position: sticky;
  top: 1rem;
}
.aside-block {
  background: var(--c-surface);
  border-radius: var(--radius-card);
  padding: 1.2rem 1.1rem;
  border: 1px solid var(--c-border);
  backdrop-filter: blur(10px);
}
.aside-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-pink);
  text-transform: uppercase;
  margin-bottom: 0.7rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--c-border);
}
.aside-links { display: flex; flex-direction: column; gap: 0.4rem; }
.aside-links li a {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  padding: 0.2rem 0;
  display: block;
  transition: color 0.2s;
}
.aside-links li a:hover,
.aside-links li a.aside-active { color: var(--c-pink); }
.aside-parent-link {
  font-size: 0.92rem;
  color: var(--c-text);
  font-weight: 600;
  padding: 0.5rem 0.8rem;
  background: rgba(255,0,0,0.08);
  border-radius: 8px;
  display: block;
  transition: background 0.2s;
}
.aside-parent-link:hover { background: rgba(255,20,147,0.12); }
.aside-block--notice .aside-notice-text {
  font-size: 0.82rem;
  color: var(--c-text-muted);
  line-height: 1.6;
}

/* ===== 正文 Prose ===== */
.prose {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
}
.prose h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin: 1.8rem 0 0.8rem;
  padding-left: 0.7rem;
  border-left: 3px solid var(--c-red);
}
.prose h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin: 1.4rem 0 0.6rem;
}
.prose p { margin-bottom: 1rem; }
.prose ul, .prose ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  list-style: disc;
}
.prose ol { list-style: decimal; }
.prose li { margin-bottom: 0.4rem; }
.prose a { color: var(--c-pink); text-decoration: underline; text-underline-offset: 3px; }
.prose a:hover { color: var(--c-red); }
.prose strong { color: #fff; font-weight: 700; }
.prose blockquote {
  border-left: 3px solid var(--c-pink);
  padding: 0.5rem 1rem;
  margin: 1rem 0;
  color: var(--c-text-muted);
  background: rgba(255,20,147,0.05);
  border-radius: 0 8px 8px 0;
}
.prose code {
  background: rgba(255,255,255,0.08);
  padding: 0.15em 0.45em;
  border-radius: 4px;
  font-size: 0.88em;
}
.prose pre {
  background: rgba(0,0,0,0.4);
  border-radius: 10px;
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}
.prose img {
  border-radius: 10px;
  margin: 1rem 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}
.prose--privacy h2 { font-size: 1.1rem; }

/* ===== 底部固定导航 ===== */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  background: rgba(26, 15, 15, 0.92);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--c-border);
  padding: 0 0.5rem;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.5);
}
.nav-left,
.nav-right {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
}
.nav-right { justify-content: flex-end; }
.nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--c-text-muted);
  padding: 0 0.65rem;
  height: var(--nav-h);
  min-height: 44px;
  white-space: nowrap;
  transition: color 0.2s;
  letter-spacing: 0.01em;
}
.nav-link:hover,
.nav-link[aria-current="page"] {
  color: var(--c-pink);
}
.nav-brand {
  font-size: 0.92rem;
  font-weight: 700;
  color: #fff;
  text-align: center;
  padding: 0 0.8rem;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  letter-spacing: 0.03em;
  background: linear-gradient(90deg, var(--c-red), var(--c-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}

/* ===== 页脚 ===== */
.site-footer {
  position: relative;
  z-index: 1;
  background: var(--c-dark2);
  border-top: 1px solid var(--c-border);
  padding-bottom: calc(var(--nav-h) + 1rem);
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3rem 1.25rem 2rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
}
@media (max-width: 820px) {
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-brand-col { grid-column: 1/-1; }
}
@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
}
.footer-brand-super {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--c-red), var(--c-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: 0.6rem;
  letter-spacing: -0.02em;
}
.footer-tagline {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  line-height: 1.6;
  max-width: 280px;
}
.footer-col-title {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-text-faint);
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.footer-links { display: flex; flex-direction: column; gap: 0.45rem; }
.footer-links li a {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  transition: color 0.2s;
}
.footer-links li a:hover { color: var(--c-pink); }
.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--c-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.footer-copy { font-size: 0.8rem; color: var(--c-text-faint); }
.footer-bottom-links { display: flex; gap: 1.2rem; }
.footer-bottom-links a {
  font-size: 0.8rem;
  color: var(--c-text-faint);
  transition: color 0.2s;
}
.footer-bottom-links a:hover { color: var(--c-pink); }

/* ===== 动效：Stagger reveal ===== */
.reveal-card {
  opacity: 0;
  transform: translateY(20px);
  animation: revealUp 0.5s ease forwards;
}
.reveal-item {
  opacity: 0;
  transform: translateX(-12px);
  animation: revealLeft 0.45s ease forwards;
}
.channel-card:nth-child(1), .child-block:nth-child(1), .article-entry:nth-child(1) { animation-delay: 0.05s; }
.channel-card:nth-child(2), .child-block:nth-child(2), .article-entry:nth-child(2) { animation-delay: 0.12s; }
.channel-card:nth-child(3), .child-block:nth-child(3), .article-entry:nth-child(3) { animation-delay: 0.19s; }
.channel-card:nth-child(4), .child-block:nth-child(4), .article-entry:nth-child(4) { animation-delay: 0.26s; }
.channel-card:nth-child(5), .child-block:nth-child(5), .article-entry:nth-child(5) { animation-delay: 0.33s; }
.channel-card:nth-child(6), .child-block:nth-child(6), .article-entry:nth-child(6) { animation-delay: 0.40s; }

@keyframes revealUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes revealLeft {
  to { opacity: 1; transform: translateX(0); }
}

@media (prefers-reduced-motion: reduce) {
  .reveal-card, .reveal-item {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ===== 响应式 ===== */
@media (max-width: 640px) {
  .hero { height: 38vh; }
  .hero--slim { height: 22vh; }
  .hero-content { padding: 1.5rem 1rem 2rem; }
  .hero-h1 { font-size: 1.4rem; }
  .content-shell { padding: 1.2rem 1rem 0; }
  .channel-grid { grid-template-columns: 1fr; }
  .article-pagination { grid-template-columns: 1fr; }
  .bottom-nav { height: 56px; --nav-h: 56px; }
  .nav-link { font-size: 0.7rem; padding: 0 0.4rem; }
  .nav-brand { font-size: 0.82rem; padding: 0 0.5rem; }
  .footer-inner { gap: 1.2rem; }
  .footer-brand-super { font-size: 2rem; }
}

@media (max-width: 375px) {
  .nav-link { padding: 0 0.3rem; font-size: 0.65rem; }
  .hero-h1 { font-size: 1.25rem; }
  .aside-block { display: none; }
  .about-aside .aside-block:first-child { display: block; }
}

/* ===== 工具 ===== */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}