@import url('https://fonts.googleapis.com/css2?family=Exo+2:wght@300;400;500;600;700&family=Orbitron:wght@400;500;600;700&display=swap');

/* =============================================
   CSS 自定义属性
   ============================================= */
:root {
  --c-bg: #1a1a2e;
  --c-gold: #c9a84c;
  --c-light: #e8e8e8;
  --c-bg2: #12121f;
  --c-bg3: #22223a;
  --c-gold-dim: rgba(201,168,76,0.18);
  --c-gold-border: rgba(201,168,76,0.35);
  --c-glass: rgba(30,30,55,0.72);
  --c-glass-border: rgba(201,168,76,0.22);
  --c-text: #d8d8e8;
  --c-text-dim: #8888aa;
  --c-white: #ffffff;
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Exo 2', sans-serif;
  --radius-card: 4px;
  --nav-h: 60px;
  --hero-h: 45vh;
  --transition-base: 0.28s ease;
  --max-prose: 760px;
  --max-wide: 1180px;
}

/* =============================================
   Reset & Base
   ============================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  overflow-x: hidden;
  padding-bottom: calc(var(--nav-h) + 8px);
}

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

a {
  color: var(--c-gold);
  text-decoration: none;
  transition: color var(--transition-base), opacity var(--transition-base);
}

a:hover {
  color: var(--c-white);
  opacity: 0.9;
}

ul, ol {
  list-style: none;
}

/* =============================================
   全屏遮罩导航 (details + summary + menu)
   ============================================= */
.nav-drawer {
  position: fixed;
  inset: 0;
  z-index: 900;
  pointer-events: none;
}

.nav-drawer[open] {
  pointer-events: auto;
}

.nav-toggle {
  position: fixed;
  bottom: calc(var(--nav-h) + 12px);
  right: 16px;
  z-index: 950;
  cursor: pointer;
  pointer-events: auto;
  list-style: none;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-glass);
  border: 1px solid var(--c-gold-border);
  border-radius: var(--radius-card);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-toggle::-webkit-details-marker { display: none; }

.hamburger-icon {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 20px;
}

.hamburger-icon span {
  display: block;
  height: 2px;
  background: var(--c-gold);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-drawer[open] .hamburger-icon span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-drawer[open] .hamburger-icon span:nth-child(2) {
  opacity: 0;
}
.nav-drawer[open] .hamburger-icon span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(12,12,22,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
  z-index: 910;
}

.nav-drawer[open] .nav-overlay {
  opacity: 1;
  pointer-events: auto;
}

.nav-overlay-inner {
  text-align: center;
  padding: 2rem 1.5rem;
  width: 100%;
  max-width: 480px;
}

.nav-brand-big {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 4vw, 2rem);
  color: var(--c-gold);
  letter-spacing: 0.08em;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--c-gold-border);
}

.nav-menu-full {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 1.5rem;
}

.nav-menu-full li a {
  display: block;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--c-light);
  border-bottom: 1px solid rgba(201,168,76,0.1);
  transition: color var(--transition-base), padding-left var(--transition-base);
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-menu-full li a:hover {
  color: var(--c-gold);
  padding-left: 1.5rem;
}

.nav-search-wrap {
  display: flex;
  justify-content: center;
}

.nav-search {
  width: 100%;
  max-width: 300px;
  padding: 0.6rem 1rem;
  background: var(--c-glass);
  border: 1px solid var(--c-gold-border);
  border-radius: var(--radius-card);
  color: var(--c-light);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
}

.nav-search::placeholder {
  color: var(--c-text-dim);
}

.nav-search:focus {
  border-color: var(--c-gold);
}

/* =============================================
   底部固定导航条
   ============================================= */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(18,18,30,0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--c-gold-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 800;
  padding: 0 0.5rem;
  gap: 0.25rem;
}

.bottom-nav-brand {
  font-family: var(--font-display);
  font-size: 0.7rem;
  color: var(--c-gold);
  font-weight: 700;
  letter-spacing: 0.05em;
  white-space: nowrap;
  padding: 0.5rem 0.25rem;
  min-height: 44px;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bottom-nav-left,
.bottom-nav-right {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
  overflow: hidden;
}

.bottom-nav-left {
  justify-content: flex-start;
}

.bottom-nav-right {
  justify-content: flex-end;
}

.bottom-nav-link {
  color: var(--c-text-dim);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0 0.4rem;
  min-height: 44px;
  display: flex;
  align-items: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 80px;
  transition: color var(--transition-base);
}

.bottom-nav-link:hover {
  color: var(--c-gold);
}

.bottom-nav-btn {
  background: none;
  border: 1px solid var(--c-gold-border);
  color: var(--c-gold);
  cursor: pointer;
  padding: 0 0.6rem;
  min-height: 44px;
  display: flex;
  align-items: center;
  font-size: 1rem;
  border-radius: var(--radius-card);
  transition: background var(--transition-base);
  flex-shrink: 0;
}

.bottom-nav-btn:hover {
  background: var(--c-gold-dim);
}

/* =============================================
   Hero 区域
   ============================================= */
.hero-parallax,
.section-hero,
.story-hero-wrap {
  position: relative;
  min-height: var(--hero-h);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.hero-parallax {
  min-height: 50vh;
}

.hero-bg-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-dot-pattern {
  background-image: radial-gradient(circle, rgba(201,168,76,0.18) 1px, transparent 1px);
  background-size: 28px 28px;
  z-index: 1;
}

.hero-gradient-layer {
  background: linear-gradient(160deg, rgba(26,26,46,0.4) 0%, rgba(12,12,22,0.85) 70%, var(--c-bg) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 10;
  padding: 2rem 1.5rem 3rem;
  max-width: var(--max-wide);
  width: 100%;
  margin: 0 auto;
}

.story-hero-wrap {
  min-height: 50vh;
}

.story-hero-fig {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  margin: 0;
}

.story-hero-fig .story-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  will-change: transform;
}

.story-hero-overlay {
  position: relative;
  z-index: 10;
  padding: 2rem 1.5rem 3rem;
  max-width: var(--max-wide);
  width: 100%;
  margin: 0 auto;
  margin-top: auto;
}

.hero-inner {
  max-width: 640px;
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--c-gold);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.hero-eyebrow a {
  color: var(--c-gold);
}

.hero-h1 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.2;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.hero-lead {
  font-size: 1rem;
  color: var(--c-text);
  line-height: 1.7;
  margin-bottom: 1.5rem;
  max-width: 520px;
}

.story-meta {
  font-size: 0.85rem;
  color: var(--c-text-dim);
  margin-top: 0.5rem;
}

.story-meta time {
  color: var(--c-gold);
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-cta-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.1rem;
  background: var(--c-gold-dim);
  border: 1px solid var(--c-gold-border);
  border-radius: var(--radius-card);
  color: var(--c-gold);
  font-size: 0.85rem;
  font-weight: 600;
  transition: background var(--transition-base), color var(--transition-base);
  min-height: 40px;
}

.hero-cta-btn:hover {
  background: var(--c-gold);
  color: var(--c-bg);
}

/* 斜切底边 */
.hero-clip-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--c-bg);
  clip-path: polygon(0 60%, 100% 0, 100% 100%, 0 100%);
  z-index: 20;
}

/* =============================================
   玻璃拟态卡片
   ============================================= */
.glass-card {
  display: block;
  background: var(--c-glass);
  border: 1px solid var(--c-glass-border);
  border-radius: var(--radius-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  will-change: transform;
}

.glass-card:hover {
  transform: translateY(-3px);
  border-color: var(--c-gold);
  box-shadow: 0 8px 32px rgba(201,168,76,0.15);
  color: inherit;
  opacity: 1;
}

/* =============================================
   主布局（sidebar + figure）
   ============================================= */
.section-content-area,
.tag-content-section,
.about-content-section,
.privacy-content-section,
.story-body-section {
  display: flex;
  gap: 2rem;
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

/* aside 在左侧 */
.sidebar-left {
  width: 220px;
  flex-shrink: 0;
  position: sticky;
  top: 1rem;
  align-self: flex-start;
}

.sidebar-left h2 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--c-gold);
  letter-spacing: 0.15em;
  margin-bottom: 0.3rem;
  border-bottom: 1px solid var(--c-gold-border);
  padding-bottom: 0.5rem;
}

.sidebar-left .subtitle {
  font-size: 0.78rem;
  color: var(--c-text-dim);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.sidebar-nav li a {
  display: block;
  padding: 0.55rem 0.5rem;
  font-size: 0.85rem;
  color: var(--c-text);
  border-bottom: 1px solid rgba(201,168,76,0.08);
  transition: color var(--transition-base), padding-left var(--transition-base);
  min-height: 40px;
  display: flex;
  align-items: center;
}

.sidebar-nav li a:hover {
  color: var(--c-gold);
  padding-left: 0.75rem;
}

.sidebar-sections {
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: section-counter;
  list-style: none;
}

.sidebar-sections li {
  counter-increment: section-counter;
}

.sidebar-sections .section-link {
  display: flex;
  flex-direction: column;
  padding: 0.55rem 0.5rem;
  border-bottom: 1px solid rgba(201,168,76,0.08);
  gap: 0.15rem;
  min-height: 44px;
  justify-content: center;
  transition: padding-left var(--transition-base);
}

.sidebar-sections .section-link:hover {
  padding-left: 0.75rem;
}

.sidebar-sections .section-title {
  font-size: 0.85rem;
  color: var(--c-light);
  font-weight: 500;
}

.sidebar-sections .section-desc {
  font-size: 0.72rem;
  color: var(--c-text-dim);
  line-height: 1.4;
}

.sidebar-back {
  margin-top: 1.5rem;
}

.back-link {
  font-size: 0.82rem;
  color: var(--c-gold);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 40px;
}

.back-link::before {
  content: '←';
}

/* figure 占满剩余 */
.home-intro-figure,
.section-desc-figure,
.tag-desc-figure,
.about-content-fig,
.privacy-content-fig,
.story-content-fig {
  flex: 1;
  min-width: 0;
  margin: 0;
}

/* =============================================
   正文内容区
   ============================================= */
.page-content-wrap {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text);
  max-width: var(--max-prose);
}

.page-content-wrap h2,
.page-content-wrap h3 {
  font-family: var(--font-display);
  color: var(--c-white);
  margin: 1.8rem 0 0.6rem;
  letter-spacing: 0.04em;
}

.page-content-wrap h2 {
  font-size: 1.2rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--c-gold-border);
}

.page-content-wrap h3 {
  font-size: 1rem;
}

.page-content-wrap p {
  margin-bottom: 1rem;
}

.page-content-wrap a {
  color: var(--c-gold);
  border-bottom: 1px solid var(--c-gold-border);
  padding-bottom: 1px;
}

.page-content-wrap a:hover {
  border-bottom-color: var(--c-gold);
}

.page-content-wrap ul,
.page-content-wrap ol {
  padding-left: 1.4rem;
  margin-bottom: 1rem;
}

.page-content-wrap li {
  margin-bottom: 0.4rem;
  list-style: disc;
}

.page-content-wrap ol li {
  list-style: decimal;
}

.page-content-wrap img {
  width: 100%;
  border-radius: var(--radius-card);
  margin: 1rem 0;
}

/* =============================================
   首页专用区块
   ============================================= */
.home-main,
.section-main,
.story-main,
.tag-main,
.about-main,
.privacy-main {
  min-height: 50vh;
}

/* 精选卡片网格 */
.section-featured {
  padding: 3rem 1.5rem 2.5rem;
  max-width: var(--max-wide);
  margin: 0 auto;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1rem, 3vw, 1.4rem);
  color: var(--c-gold);
  letter-spacing: 0.1em;
  margin-bottom: 0.3rem;
}

.subtitle {
  font-size: 0.9rem;
  color: var(--c-text-dim);
  margin-bottom: 1.8rem;
  line-height: 1.5;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.card-item {
  list-style: none;
}

.card-item .glass-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card-figure {
  margin: 0;
  overflow: hidden;
  aspect-ratio: 16/9;
  background: var(--c-bg3);
}

.card-figure .card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card-item:hover .card-img {
  transform: scale(1.04);
}

.card-body {
  padding: 1rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.card-eyebrow {
  font-family: var(--font-display);
  font-size: 0.65rem;
  color: var(--c-gold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.card-body h3 {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--c-white);
  font-weight: 600;
  line-height: 1.4;
  margin: 0;
}

.card-desc {
  font-size: 0.82rem;
  color: var(--c-text-dim);
  line-height: 1.5;
  flex: 1;
}

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

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

/* 话题列表 */
.section-topics {
  padding: 2.5rem 1.5rem;
  max-width: var(--max-wide);
  margin: 0 auto;
}

.topic-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--c-gold-border);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.topic-item {
  list-style: none;
  border-bottom: 1px solid rgba(201,168,76,0.1);
}

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

.topic-item a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.2rem;
  min-height: 52px;
  color: var(--c-text);
  transition: background var(--transition-base), color var(--transition-base);
}

.topic-item a:hover {
  background: var(--c-gold-dim);
  color: var(--c-white);
}

.topic-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-light);
}

.topic-item small {
  font-size: 0.78rem;
  color: var(--c-text-dim);
  text-align: right;
  max-width: 50%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* =============================================
   栏目页故事列表
   ============================================= */
.section-stories {
  padding: 2.5rem 1.5rem;
  max-width: var(--max-wide);
  margin: 0 auto;
}

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

.story-list-item {
  list-style: none;
}

.story-row {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem;
  text-decoration: none;
  color: inherit;
}

.story-thumb-fig {
  flex-shrink: 0;
  width: 120px;
  height: 80px;
  overflow: hidden;
  border-radius: var(--radius-card);
  background: var(--c-bg3);
  margin: 0;
}

.story-thumb-fig .story-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.story-row:hover .story-thumb {
  transform: scale(1.05);
}

.story-row-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.story-row-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--c-white);
  line-height: 1.4;
  margin: 0;
}

.story-row:hover .story-row-title {
  color: var(--c-gold);
}

.story-row-desc {
  font-size: 0.82rem;
  color: var(--c-text-dim);
  line-height: 1.5;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.story-row-meta {
  font-size: 0.75rem;
  color: var(--c-text-dim);
}

.story-row-meta time {
  color: var(--c-gold);
}

/* =============================================
   故事页相关推荐
   ============================================= */
.story-related-section {
  padding: 2.5rem 1.5rem;
  max-width: var(--max-wide);
  margin: 0 auto;
}

.related-stories {}

.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.related-item {
  list-style: none;
}

.related-card {
  display: flex;
  flex-direction: column;
}

.related-card figure {
  margin: 0;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--c-bg3);
}

.related-card figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.related-card:hover figure img {
  transform: scale(1.05);
}

.related-body {
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.related-body span {
  font-size: 0.88rem;
  color: var(--c-light);
  font-weight: 500;
  line-height: 1.4;
}

.related-body small {
  font-size: 0.72rem;
  color: var(--c-text-dim);
}

.related-body small time {
  color: var(--c-gold);
}

/* =============================================
   关于页
   ============================================= */
.about-brand-display {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--c-gold-border);
}

.about-brand-orbitron {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 6vw, 3.5rem);
  color: var(--c-gold);
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.1;
}

.about-channels-section {
  padding: 2.5rem 1.5rem;
  max-width: var(--max-wide);
  margin: 0 auto;
}

.about-channel-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.about-channel-card {
  display: flex;
  flex-direction: column;
  padding: 1.2rem;
  gap: 0.5rem;
}

.channel-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-white);
  line-height: 1.4;
}

.about-channel-card small {
  font-size: 0.78rem;
  color: var(--c-text-dim);
  line-height: 1.5;
}

/* =============================================
   页脚
   ============================================= */
.site-footer {
  background: var(--c-bg2);
  border-top: 1px solid var(--c-gold-border);
  padding: 2.5rem 1.5rem 1.5rem;
  text-align: center;
}

.footer-brand-row {
  margin-bottom: 1.5rem;
}

.footer-brand-big {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 8vw, 4.5rem);
  color: var(--c-gold);
  font-weight: 700;
  letter-spacing: 0.06em;
  opacity: 0.22;
  line-height: 1;
  display: block;
}

.footer-address {
  margin-bottom: 1.2rem;
  font-style: normal;
}

.footer-nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.2rem 1rem;
}

.footer-nav-list li a {
  font-size: 0.82rem;
  color: var(--c-text-dim);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  transition: color var(--transition-base);
}

.footer-nav-list li a:hover {
  color: var(--c-gold);
}

.footer-copy {
  font-size: 0.78rem;
  color: var(--c-text-dim);
  padding-top: 1rem;
  border-top: 1px solid rgba(201,168,76,0.1);
}

.footer-copy a {
  color: var(--c-text-dim);
}

.footer-copy a:hover {
  color: var(--c-gold);
}

/* =============================================
   reveal 动画区块
   ============================================= */
.reveal-section {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal-section.in-view {
  opacity: 1;
  transform: none;
}

/* stagger 子项 */
.stagger-item {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.stagger-item.in-view {
  opacity: 1;
  transform: none;
}

/* =============================================
   section-channels（首页左右布局）
   ============================================= */
.section-channels {
  display: flex;
  gap: 2rem;
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
}

.section-channels aside {
  width: 220px;
  flex-shrink: 0;
}

.section-channels figure {
  flex: 1;
  min-width: 0;
  margin: 0;
}

/* =============================================
   隐私 + 关于 prose
   ============================================= */
.about-prose,
.privacy-prose {
  font-size: 1rem;
  line-height: 1.8;
}

/* =============================================
   杂项工具
   ============================================= */
.empty-tip {
  color: var(--c-text-dim);
  font-size: 0.9rem;
  padding: 1.5rem 0;
}

.intro-content,
.section-desc-content {
  padding: 0;
}

/* =============================================
   parallax JS 辅助类
   ============================================= */
.parallax-active .hero-dot-pattern {
  will-change: transform;
}

/* =============================================
   响应式
   ============================================= */
@media (max-width: 768px) {
  .section-content-area,
  .tag-content-section,
  .about-content-section,
  .privacy-content-section,
  .story-body-section,
  .section-channels {
    flex-direction: column;
    padding: 1.5rem 1rem;
  }

  .sidebar-left {
    width: 100%;
    position: static;
  }

  .sidebar-left h2 {
    font-size: 0.75rem;
  }

  .card-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 0.75rem;
  }

  .story-thumb-fig {
    width: 90px;
    height: 65px;
  }

  .related-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .bottom-nav-link {
    font-size: 0.62rem;
    max-width: 60px;
  }

  .bottom-nav-brand {
    font-size: 0.58rem;
    max-width: 100px;
  }

  .hero-h1 {
    font-size: 1.4rem;
  }

  .footer-brand-big {
    font-size: 2.5rem;
  }

  .about-channel-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .hero-cta-row {
    flex-direction: column;
  }

  .hero-cta-btn {
    width: 100%;
    justify-content: center;
  }

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

  .related-list {
    grid-template-columns: 1fr;
  }

  .about-channel-list {
    grid-template-columns: 1fr;
  }

  .topic-item small {
    display: none;
  }

  .story-row {
    flex-direction: column;
  }

  .story-thumb-fig {
    width: 100%;
    height: 160px;
  }
}

/* =============================================
   prefers-reduced-motion
   ============================================= */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }

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