/* ============================================
   动漫资讯与行业情报站 - 主样式表
   配色：头条红 #D32F2F / 权威蓝 #1976D2 / 纯白 #FFFFFF / 浅灰 #F5F5F5 / 正文 #212121
   ============================================ */

/* CSS 变量 */
:root {
  --color-primary: #D32F2F;
  --color-primary-dark: #B71C1C;
  --color-secondary: #1976D2;
  --color-secondary-dark: #0D47A1;
  --color-bg: #FFFFFF;
  --color-card: #F5F5F5;
  --color-text: #212121;
  --color-text-light: #616161;
  --color-border: #E0E0E0;
  --color-hot: #FF6D00;
  --font-heading: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --max-width: 1200px;
  --radius: 6px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
  --transition: all 0.3s ease;
}

/* 重置 */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--color-primary-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* 阅读进度条 */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  z-index: 9999;
  transition: width 0.1s linear;
}

/* 24小时快报滚动条 */
.news-ticker {
  background: var(--color-primary);
  color: #fff;
  padding: 8px 0;
  overflow: hidden;
  position: relative;
  z-index: 100;
}
.news-ticker__label {
  display: inline-block;
  background: var(--color-primary-dark);
  padding: 4px 16px;
  font-weight: 700;
  font-size: 0.85rem;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
}
.news-ticker__track {
  display: flex;
  animation: tickerScroll 30s linear infinite;
  padding-left: 140px;
}
.news-ticker__item {
  white-space: nowrap;
  padding: 0 40px;
  font-size: 0.9rem;
}
.news-ticker__item a { color: #fff; }
.news-ticker__item a:hover { text-decoration: underline; }
@keyframes tickerScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* 顶部导航 */
.site-header {
  background: var(--color-bg);
  border-bottom: 3px solid var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.site-logo img { width: 40px; height: 40px; border-radius: 50%; }
.site-logo__text {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--color-primary);
}
.main-nav { display: flex; gap: 4px; }
.main-nav a {
  padding: 8px 16px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius);
  position: relative;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition);
  transform: translateX(-50%);
}
.main-nav a:hover::after,
.main-nav a.active::after { width: 80%; }
.main-nav a:hover { color: var(--color-primary); }
.nav-search {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-search input {
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 0.9rem;
  width: 180px;
  outline: none;
  transition: var(--transition);
}
.nav-search input:focus { border-color: var(--color-primary); width: 220px; }
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text);
}

/* 主布局：三栏 */
.page-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 20px;
  display: grid;
  grid-template-columns: 200px 1fr 280px;
  gap: 24px;
}
.page-container--full {
  grid-template-columns: 1fr;
}
.page-container--two {
  grid-template-columns: 1fr 280px;
}

/* 左侧导航 */
.sidebar-left {
  position: sticky;
  top: 80px;
  height: fit-content;
}
.sidebar-left__nav a {
  display: block;
  padding: 10px 16px;
  color: var(--color-text);
  font-size: 0.9rem;
  border-left: 3px solid transparent;
  transition: var(--transition);
}
.sidebar-left__nav a:hover,
.sidebar-left__nav a.active {
  border-left-color: var(--color-primary);
  background: var(--color-card);
  color: var(--color-primary);
}

/* 中栏内容 */
.main-content { min-width: 0; }

/* 右侧热榜 */
.sidebar-right {
  position: sticky;
  top: 80px;
  height: fit-content;
}

/* 头条大图 */
.hero-headline {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 24px;
}
.hero-headline img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.hero-headline:hover img { transform: scale(1.03); }
.hero-headline__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 30px 24px 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  color: #fff;
}
.hero-headline__tag {
  display: inline-block;
  background: var(--color-primary);
  padding: 3px 12px;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 3px;
  margin-bottom: 8px;
}
.hero-headline__title {
  font-size: 1.6rem;
  font-weight: 900;
  line-height: 1.4;
  margin-bottom: 6px;
}
.hero-headline__meta {
  font-size: 0.8rem;
  opacity: 0.8;
}

/* 新闻卡片 */
.news-card {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}
.news-card:hover { background: var(--color-card); padding-left: 8px; }
.news-card__img {
  width: 180px;
  min-width: 180px;
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  overflow: hidden;
}
.news-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-card:hover .news-card__img img { transform: scale(1.05); }
.news-card__body { flex: 1; }
.news-card__category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.news-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 6px;
  color: var(--color-text);
}
.news-card__title:hover { color: var(--color-primary); }
.news-card__excerpt {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card__meta {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 8px;
}

/* 热度排行榜 */
.hot-rank { background: var(--color-card); border-radius: var(--radius); padding: 20px; }
.hot-rank__title {
  font-size: 1.1rem;
  font-weight: 900;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.hot-rank__title::before { content: "🔥"; }
.hot-rank__list { counter-reset: rank; }
.hot-rank__item {
  counter-increment: rank;
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.hot-rank__item::before {
  content: counter(rank);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 700;
  color: #fff;
  background: var(--color-text-light);
  flex-shrink: 0;
}
.hot-rank__item:nth-child(1)::before { background: var(--color-primary); }
.hot-rank__item:nth-child(2)::before { background: var(--color-hot); }
.hot-rank__item:nth-child(3)::before { background: var(--color-secondary); }
.hot-rank__item a {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.5;
}
.hot-rank__item a:hover { color: var(--color-primary); }
.hot-rank__trend {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--color-primary);
}
.hot-rank__trend--down { color: var(--color-secondary); }

/* 专题时间轴 */
.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-primary);
}
.timeline__item {
  position: relative;
  margin-bottom: 24px;
  padding: 16px;
  background: var(--color-card);
  border-radius: var(--radius);
}
.timeline__item::before {
  content: '';
  position: absolute;
  left: -26px;
  top: 20px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid #fff;
}
.timeline__date {
  font-size: 0.8rem;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 4px;
}
.timeline__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.timeline__desc {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

/* 分区标题 */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 32px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}
.section-header__title {
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--color-text);
}
.section-header__more {
  font-size: 0.85rem;
  color: var(--color-primary);
  font-weight: 500;
}
.section-header__more:hover { text-decoration: underline; }

/* 文章详情页 */
.article-detail {
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 20px;
}
.article-detail__header { margin-bottom: 24px; }
.article-detail__category {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 3px;
  margin-bottom: 12px;
}
.article-detail__title {
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.4;
  margin-bottom: 12px;
}
.article-detail__meta {
  font-size: 0.85rem;
  color: var(--color-text-light);
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.article-detail__cover {
  width: 100%;
  border-radius: var(--radius);
  margin-bottom: 24px;
  aspect-ratio: 16/9;
  object-fit: cover;
}
.article-detail__body {
  font-size: 1rem;
  line-height: 2;
}
.article-detail__body p { margin-bottom: 16px; }
.article-detail__body h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 32px 0 12px;
  padding-left: 12px;
  border-left: 4px solid var(--color-primary);
}
.article-detail__body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 24px 0 8px;
}
.article-detail__body blockquote {
  border-left: 4px solid var(--color-secondary);
  padding: 12px 20px;
  background: var(--color-card);
  margin: 16px 0;
  font-style: italic;
  color: var(--color-text-light);
}

/* 相关阅读 */
.related-reading {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 2px solid var(--color-border);
}
.related-reading__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.related-reading__list { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; }
.related-reading__item {
  padding: 12px;
  background: var(--color-card);
  border-radius: var(--radius);
  transition: var(--transition);
}
.related-reading__item:hover { box-shadow: var(--shadow-hover); }
.related-reading__item a { color: var(--color-text); font-weight: 500; }
.related-reading__item a:hover { color: var(--color-primary); }

/* FAQ */
.faq-section { margin: 40px 0; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-item__question {
  padding: 16px 20px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-card);
}
.faq-item__question::after { content: "+"; font-size: 1.2rem; color: var(--color-primary); }
.faq-item.active .faq-item__question::after { content: "−"; }
.faq-item__answer {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.active .faq-item__answer {
  max-height: 500px;
  padding: 16px 20px;
}

/* 页脚 */
.site-footer {
  background: var(--color-text);
  color: #ccc;
  padding: 48px 20px 24px;
  margin-top: 60px;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.footer-col__title {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: #aaa;
  font-size: 0.85rem;
  padding: 4px 0;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding-top: 20px;
  border-top: 1px solid #444;
  text-align: center;
  font-size: 0.8rem;
  color: #888;
}

/* 搜索页 */
.search-page { max-width: 800px; margin: 40px auto; padding: 0 20px; }
.search-page__input-wrap {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
}
.search-page__input {
  flex: 1;
  padding: 12px 20px;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
  font-size: 1rem;
  outline: none;
}
.search-page__btn {
  padding: 12px 24px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}
.search-page__btn:hover { background: var(--color-primary-dark); }
.search-results__item {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}
.search-results__item h3 { font-size: 1.1rem; margin-bottom: 4px; }
.search-results__item h3 a { color: var(--color-text); }
.search-results__item h3 a:hover { color: var(--color-primary); }
.search-results__item p { font-size: 0.85rem; color: var(--color-text-light); }

/* 404 页面 */
.page-404 {
  text-align: center;
  padding: 80px 20px;
}
.page-404__code {
  font-size: 8rem;
  font-weight: 900;
  color: var(--color-primary);
  line-height: 1;
}
.page-404__msg {
  font-size: 1.4rem;
  margin: 16px 0 24px;
  color: var(--color-text-light);
}
.page-404__btn {
  display: inline-block;
  padding: 12px 32px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 700;
}
.page-404__btn:hover { background: var(--color-primary-dark); color: #fff; }

/* APP下载页 */
.app-page {
  text-align: center;
  padding: 60px 20px;
}
.app-page__hero {
  max-width: 400px;
  margin: 0 auto 32px;
}
.app-page__title {
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 12px;
}
.app-page__desc {
  font-size: 1.1rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
}
.app-page__btns { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.app-page__btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 1rem;
}
.app-page__btn--primary { background: var(--color-primary); color: #fff; }
.app-page__btn--primary:hover { background: var(--color-primary-dark); color: #fff; }
.app-page__btn--secondary { background: var(--color-text); color: #fff; }
.app-page__btn--secondary:hover { background: #333; color: #fff; }

/* 合规页 */
.legal-page {
  max-width: 800px;
  margin: 40px auto;
  padding: 0 20px;
}
.legal-page h1 {
  font-size: 1.8rem;
  font-weight: 900;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary);
}
.legal-page h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 28px 0 12px;
}
.legal-page p {
  margin-bottom: 14px;
  line-height: 1.9;
}

/* 面包屑 */
.breadcrumb {
  padding: 12px 0;
  font-size: 0.85rem;
  color: var(--color-text-light);
}
.breadcrumb a { color: var(--color-text-light); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span { margin: 0 6px; }

/* 按钮通用 */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.9rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn--outline { border: 2px solid var(--color-primary); color: var(--color-primary); background: transparent; }
.btn--outline:hover { background: var(--color-primary); color: #fff; }

/* 栏目页网格 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.news-grid-card {
  background: var(--color-card);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.news-grid-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.news-grid-card__img {
  aspect-ratio: 16/9;
  overflow: hidden;
}
.news-grid-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-grid-card:hover .news-grid-card__img img { transform: scale(1.05); }
.news-grid-card__body { padding: 16px; }
.news-grid-card__category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}
.news-grid-card__title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 8px;
}
.news-grid-card__excerpt {
  font-size: 0.85rem;
  color: var(--color-text-light);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-grid-card__meta {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 10px;
}

/* 响应式 */
@media (max-width: 1024px) {
  .page-container { grid-template-columns: 1fr 260px; }
  .sidebar-left { display: none; }
}
@media (max-width: 768px) {
  .page-container,
  .page-container--two { grid-template-columns: 1fr; }
  .sidebar-right { position: static; }
  .main-nav { display: none; }
  .mobile-menu-btn { display: block; }
  .nav-search input { width: 120px; }
  .hero-headline__title { font-size: 1.2rem; }
  .news-card { flex-direction: column; }
  .news-card__img { width: 100%; min-width: auto; }
  .footer-inner { grid-template-columns: repeat(2, 1fr); }
  .article-detail__title { font-size: 1.5rem; }
  .news-ticker__label { position: static; transform: none; }
  .news-ticker__track { padding-left: 0; }
}
@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .app-page__btns { flex-direction: column; align-items: center; }
}