/* ============================================================
   华新日报 HUAXIN DAILY - 综合资讯门户 - 全局样式
   配色：白底黑字 + 红色主色调 + 灰色辅助
   字体：Alibaba PuHuiTi
   ============================================================ */

/* ---------- 重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Alibaba PuHuiTi", "Alibaba PuHuiTi 2.0", -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: #333333;
  background-color: #F5F5F7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #D32F2F;
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  outline: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: #1A1A1A;
}

/* ---------- 设计令牌 ---------- */
:root {
  /* 主色 - 红色 */
  --color-primary: #D32F2F;
  --color-primary-dark: #B71C1C;
  --color-primary-light: #EF5350;
  --color-primary-50: rgba(211, 47, 47, 0.06);
  --color-primary-100: rgba(211, 47, 47, 0.12);

  /* 辅色 - 深蓝/深灰 */
  --color-secondary: #1A237E;
  --color-secondary-dark: #0D1442;
  --color-secondary-light: #3949AB;

  /* 强调色 - 金橙 */
  --color-accent: #FF6D00;
  --color-accent-light: #FF9E40;

  /* 文字色 */
  --text-primary: #1A1A1A;
  --text-secondary: #4A4A4A;
  --text-tertiary: #757575;
  --text-muted: #9E9E9E;
  --text-light: #BDBDBD;
  --text-white: #FFFFFF;

  /* 背景色 */
  --bg-body: #F5F5F7;
  --bg-white: #FFFFFF;
  --bg-light: #FAFAFA;
  --bg-gray: #EEEEEE;
  --bg-dark: #1A1A1A;
  --bg-footer: #262626;
  --bg-footer-dark: #1A1A1A;

  /* 边框 */
  --border-color: #E0E0E0;
  --border-light: #F0F0F0;
  --border-dark: #D0D0D0;
  --border-primary: rgba(211, 47, 47, 0.3);

  /* 阴影 */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 6px 18px rgba(0, 0, 0, 0.1);

  /* 圆角 */
  --radius-xs: 2px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 999px;

  /* 间距 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;

  /* 过渡 */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;

  /* 最大宽度 */
  --container-max: 1200px;
  --container-narrow: 880px;
}

/* ---------- 通用布局 ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: var(--space-8) 0;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-primary);
}

.section-title h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  position: relative;
  padding-left: var(--space-3);
  letter-spacing: 0.5px;
}

.section-title h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 20px;
  background: var(--color-primary);
  border-radius: 2px;
}

.section-title .more {
  font-size: 13px;
  color: var(--text-tertiary);
  transition: color var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
}

.section-title .more:hover {
  color: var(--color-primary);
}

/* ---------- 顶部通知条 ---------- */
.top-bar {
  background: #1A1A1A;
  color: #BDBDBD;
  font-size: 12px;
  line-height: 1;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 32px;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.top-bar-date {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.top-bar-date svg {
  width: 13px;
  height: 13px;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.top-bar-right a {
  color: #BDBDBD;
}

.top-bar-right a:hover {
  color: #FFFFFF;
}

.top-bar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* ---------- 头部 ---------- */
.header {
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-light);
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) 0;
  gap: var(--space-6);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-weight: 700;
  font-size: 24px;
  border-radius: var(--radius-sm);
  letter-spacing: -1px;
}

.logo-text-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.logo-text {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 2px;
  line-height: 1.1;
}

.logo-sub {
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* 搜索框 */
.header-search {
  flex: 1;
  max-width: 380px;
}

.search-form {
  display: flex;
  width: 100%;
  height: 42px;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #FFFFFF;
  transition: all var(--transition-fast);
}

.search-form:focus-within {
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

.search-input {
  flex: 1;
  padding: 0 var(--space-4);
  border: none;
  font-size: 14px;
  color: var(--text-primary);
  background: transparent;
}

.search-input::placeholder {
  color: var(--text-muted);
}

.search-btn {
  width: 80px;
  background: var(--color-primary);
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all var(--transition-fast);
}

.search-btn:hover {
  background: var(--color-primary-dark);
}

.search-btn svg {
  width: 16px;
  height: 16px;
}

/* 头部右侧操作 */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.header-action-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
  cursor: pointer;
  background: #FFFFFF;
}

.header-action-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-50);
}

.header-action-btn.primary {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
  font-weight: 500;
}

.header-action-btn.primary:hover {
  background: var(--color-primary-dark);
  color: #FFFFFF;
}

.header-action-btn svg {
  width: 15px;
  height: 15px;
}

.mobile-toggle {
  display: none;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-primary);
}

.mobile-toggle svg {
  width: 22px;
  height: 22px;
}

/* ---------- 主导航栏 ---------- */
.main-nav {
  background: var(--color-primary);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.nav-list {
  display: flex;
  align-items: stretch;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.nav-list::-webkit-scrollbar {
  display: none;
}

.nav-item {
  flex-shrink: 0;
}

.nav-link {
  display: block;
  padding: 0 22px;
  height: 48px;
  line-height: 48px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

.nav-link:hover,
.nav-item.active .nav-link {
  color: #FFFFFF;
  background: rgba(0, 0, 0, 0.15);
}

.nav-item.active .nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 3px;
  background: #FFD700;
  border-radius: 2px 2px 0 0;
}

.nav-item:first-child .nav-link {
  padding-left: 0;
}

/* ---------- 轮播图 ---------- */
.carousel-section {
  padding: var(--space-5) 0 var(--space-6);
}

.carousel {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 7;
  background: var(--bg-gray);
  box-shadow: var(--shadow-md);
}

.carousel-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.carousel-slide.active {
  opacity: 1;
}

.carousel-slide-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #37474F 0%, #263238 100%);
}

.carousel-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.85) 100%);
  pointer-events: none;
}

.carousel-slide-content {
  position: absolute;
  bottom: var(--space-8);
  left: var(--space-8);
  right: var(--space-8);
  color: #FFFFFF;
  z-index: 2;
  max-width: 600px;
}

.carousel-tag {
  display: inline-block;
  padding: 4px 14px;
  background: var(--color-primary);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-xs);
  margin-bottom: var(--space-3);
}

.carousel-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: var(--space-3);
  line-height: 1.35;
  color: #FFFFFF;
}

.carousel-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  margin-bottom: var(--space-4);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.carousel-meta {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
}

.carousel-controls {
  position: absolute;
  bottom: var(--space-5);
  right: var(--space-6);
  display: flex;
  gap: var(--space-2);
  z-index: 3;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.carousel-dot.active {
  background: #FFD700;
  width: 28px;
  border-radius: 5px;
}

.carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 3;
  opacity: 0;
}

.carousel:hover .carousel-arrow {
  opacity: 1;
}

.carousel-arrow:hover {
  background: var(--color-primary);
}

.carousel-arrow.prev { left: var(--space-4); }
.carousel-arrow.next { right: var(--space-4); }

.carousel-arrow svg {
  width: 20px;
  height: 20px;
}

/* ---------- 主布局 ---------- */
.main-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-6);
  padding: var(--space-6) 0 var(--space-10);
}

.main-content {
  min-width: 0;
}

.sidebar {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* ---------- 新闻卡片 ---------- */
.news-card {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 1px solid var(--border-light);
}

.news-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-primary);
}

.news-card-cover {
  aspect-ratio: 16 / 10;
  background: var(--bg-gray);
  position: relative;
  overflow: hidden;
}

.news-card-cover .img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
}

.news-card-cover .img-placeholder svg {
  width: 40px;
  height: 40px;
}

.news-card-tag {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: 3px 10px;
  background: var(--color-primary);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-xs);
  z-index: 2;
}

.news-card-tag.primary {
  background: var(--color-primary);
}

.news-card-tag.secondary {
  background: var(--color-secondary);
}

.news-card-tag.accent {
  background: var(--color-accent);
}

.news-card-tag.outline {
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-primary);
}

.news-card-body {
  padding: var(--space-4);
}

.news-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: var(--space-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-fast);
}

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

.news-card-summary {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.6;
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 12px;
  color: var(--text-muted);
}

.news-card-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.news-card-meta svg {
  width: 12px;
  height: 12px;
}

.meta-dot::before {
  content: "·";
  color: var(--text-light);
  margin: 0 2px;
}

/* ---------- 新闻列表样式（纯文字） ---------- */
.news-list {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
}

.news-list-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  transition: background var(--transition-fast);
}

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

.news-list-item:hover {
  background: var(--bg-light);
}

.news-list-thumb {
  width: 140px;
  height: 95px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
}

.news-list-thumb svg {
  width: 28px;
  height: 28px;
  opacity: 0.6;
}

.news-list-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.news-list-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-fast);
}

.news-list-item:hover .news-list-title {
  color: var(--color-primary);
}

.news-list-summary {
  font-size: 13px;
  color: var(--text-tertiary);
  line-height: 1.6;
  margin: var(--space-1) 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-list-meta {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.news-list-tag {
  font-size: 11px;
  padding: 1px 6px;
  color: var(--color-primary);
  background: var(--color-primary-50);
  border-radius: var(--radius-xs);
  font-weight: 500;
}

/* 纯文字列表 */
.text-list {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
}

.text-list-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.text-list-item:hover {
  background: var(--bg-light);
}

.text-list-item:hover .text-list-title {
  color: var(--color-primary);
}

.text-list-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--text-light);
  flex-shrink: 0;
}

.text-list-title {
  flex: 1;
  min-width: 0;
  font-size: 14px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition-fast);
}

.text-list-date {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--text-muted);
}

/* ---------- 资讯网格 ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

/* ---------- 头条区块 ---------- */
.feature-section {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}

.feature-main {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: var(--bg-gray);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.feature-main::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.8) 100%);
  pointer-events: none;
}

.feature-main-tag {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  z-index: 2;
  padding: 4px 14px;
  background: var(--color-primary);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-xs);
}

.feature-main-content {
  position: absolute;
  bottom: var(--space-5);
  left: var(--space-5);
  right: var(--space-5);
  z-index: 2;
  color: #FFFFFF;
}

.feature-main-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: var(--space-2);
  line-height: 1.4;
}

.feature-main-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.feature-side {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.feature-side-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3);
  background: #FFFFFF;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid var(--border-light);
  flex: 1;
}

.feature-side-item:hover {
  border-color: var(--border-primary);
  background: var(--bg-light);
}

.feature-side-thumb {
  width: 100px;
  height: 70px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
}

.feature-side-thumb svg {
  width: 24px;
  height: 24px;
  opacity: 0.5;
}

.feature-side-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-width: 0;
}

.feature-side-title {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-fast);
  font-weight: 500;
}

.feature-side-item:hover .feature-side-title {
  color: var(--color-primary);
}

.feature-side-meta {
  font-size: 12px;
  color: var(--text-muted);
}

/* ---------- 侧边栏组件 ---------- */
.sidebar-widget {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-xs);
}

.widget-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-4);
  height: 48px;
  background: #FAFAFA;
  border-bottom: 1px solid var(--border-light);
}

.widget-title h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  position: relative;
  padding-left: var(--space-3);
  letter-spacing: 0.5px;
}

.widget-title h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 16px;
  background: var(--color-primary);
  border-radius: 2px;
}

.widget-title .more-link {
  font-size: 12px;
  color: var(--text-tertiary);
}

.widget-title .more-link:hover {
  color: var(--color-primary);
}

/* 热榜排行 */
.hot-ranking-list {
  padding: var(--space-2) 0;
}

.hot-ranking-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.hot-ranking-item:hover {
  background: var(--bg-light);
}

.rank-num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  line-height: 22px;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  background: var(--bg-gray);
  color: var(--text-tertiary);
  border-radius: var(--radius-xs);
}

.hot-ranking-item:nth-child(1) .rank-num {
  background: #D32F2F;
  color: #FFFFFF;
}

.hot-ranking-item:nth-child(2) .rank-num {
  background: #F57C00;
  color: #FFFFFF;
}

.hot-ranking-item:nth-child(3) .rank-num {
  background: #FBC02D;
  color: #FFFFFF;
}

.rank-info {
  flex: 1;
  min-width: 0;
}

.rank-title {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 3px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-fast);
}

.hot-ranking-item:hover .rank-title {
  color: var(--color-primary);
}

.rank-hot {
  flex-shrink: 0;
  font-size: 11px;
  color: var(--color-primary);
  font-weight: 600;
  background: var(--color-primary-50);
  padding: 1px 6px;
  border-radius: var(--radius-xs);
  white-space: nowrap;
}

/* 标签云 */
.tag-cloud {
  padding: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag-cloud-item {
  padding: 5px 12px;
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag-cloud-item:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.tag-cloud-item.hot {
  color: var(--color-primary);
  background: var(--color-primary-50);
  border-color: var(--color-primary);
  font-weight: 500;
}

/* ---------- 标签筛选 ---------- */
.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
  padding: var(--space-4);
  background: #FFFFFF;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
}

.tag-filter-item {
  padding: 6px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag-filter-item:hover {
  color: var(--color-primary);
  background: var(--color-primary-50);
}

.tag-filter-item.active {
  background: var(--color-primary);
  color: #FFFFFF;
}

/* ---------- 分类导航卡片 ---------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.category-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-3);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.category-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.category-card:hover .category-icon {
  background: var(--color-primary);
  color: #FFFFFF;
}

.category-card:hover .category-name {
  color: var(--color-primary);
}

.category-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto var(--space-2);
  background: var(--color-primary-50);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.category-icon svg {
  width: 22px;
  height: 22px;
}

.category-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

/* ---------- 频道 Tabs ---------- */
.channel-tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border-light);
  margin-bottom: var(--space-5);
  overflow-x: auto;
  scrollbar-width: none;
  background: #FFFFFF;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  padding: 0 var(--space-4);
}

.channel-tabs::-webkit-scrollbar { display: none; }

.channel-tab {
  flex-shrink: 0;
  padding: var(--space-4) var(--space-5);
  font-size: 15px;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 500;
  position: relative;
}

.channel-tab:hover { color: var(--color-primary); }
.channel-tab.active { color: var(--color-primary); font-weight: 600; }

.channel-tab.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: var(--space-5);
  right: var(--space-5);
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px 2px 0 0;
}

/* ---------- 分页 ---------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: var(--space-8);
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 var(--space-3);
  font-size: 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.pagination a {
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  background: #FFFFFF;
}

.pagination a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.pagination .current {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

.pagination .dots {
  color: var(--text-tertiary);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  padding: var(--space-3) 0;
  font-size: 13px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

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

.breadcrumb .separator {
  color: var(--text-light);
  font-size: 11px;
}

.breadcrumb .current { color: var(--text-primary); }

/* ---------- 频道 Banner ---------- */
.channel-banner {
  background: linear-gradient(135deg, #B71C1C 0%, #D32F2F 50%, #EF5350 100%);
  padding: var(--space-12) 0;
  position: relative;
  overflow: hidden;
}

.channel-banner::before {
  content: "";
  position: absolute;
  right: 10%;
  top: -50%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.channel-banner::after {
  content: "";
  position: absolute;
  left: 5%;
  bottom: -60%;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
}

.channel-banner-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #FFFFFF;
}

.channel-banner h1 {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: var(--space-3);
  letter-spacing: 4px;
}

.channel-banner p {
  font-size: 15px;
  opacity: 0.9;
}

/* ---------- 文章详情页 ---------- */
.article-wrap {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  padding: var(--space-8);
  border: 1px solid var(--border-light);
}

.article-header {
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border-light);
  margin-bottom: var(--space-6);
}

.article-category-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-primary);
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-xs);
  margin-bottom: var(--space-3);
}

.article-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: var(--space-4);
  letter-spacing: 0.5px;
}

.article-summary {
  font-size: 15px;
  color: var(--text-tertiary);
  line-height: 1.8;
  padding: var(--space-4);
  background: var(--bg-light);
  border-left: 3px solid var(--color-primary);
  margin-bottom: var(--space-4);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-tertiary);
}

.article-meta .author-info {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.author-avatar-xs {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-size: 12px;
  font-weight: 600;
}

.article-body {
  font-size: 16px;
  line-height: 2;
  color: var(--text-secondary);
}

.article-body p {
  margin-bottom: 1.5em;
  text-indent: 2em;
}

.article-body h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 2em 0 1em;
  padding-left: var(--space-3);
  border-left: 4px solid var(--color-primary);
  line-height: 1.4;
}

.article-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 1.5em 0 0.8em;
}

.article-body img {
  max-width: 100%;
  border-radius: var(--radius-md);
  margin: 1.5em auto;
  display: block;
}

.article-body blockquote {
  border-left: 4px solid var(--color-primary);
  padding: var(--space-3) var(--space-5);
  margin: 1.5em 0;
  background: var(--bg-light);
  color: var(--text-secondary);
  font-style: italic;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article-body strong {
  color: var(--text-primary);
  font-weight: 600;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border-light);
}

.article-tag {
  padding: 5px 14px;
  background: var(--bg-light);
  color: var(--text-secondary);
  font-size: 13px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.article-tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.article-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin: var(--space-6) 0;
  padding: var(--space-5) 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.article-action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all var(--transition-fast);
  border-radius: var(--radius-md);
}

.article-action-btn:hover {
  color: var(--color-primary);
  background: var(--color-primary-50);
}

.article-action-btn svg {
  width: 22px;
  height: 22px;
}

.article-action-btn span {
  font-size: 12px;
}

.article-action-btn.active {
  color: var(--color-primary);
}

/* 相关阅读 */
.related-articles {
  margin-top: var(--space-8);
}

.related-articles h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--text-primary);
}

.related-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.related-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.related-item:hover {
  background: var(--bg-light);
}

.related-thumb {
  width: 80px;
  height: 60px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
}

.related-thumb svg {
  width: 20px;
  height: 20px;
  opacity: 0.6;
}

.related-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.related-title {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition-fast);
}

.related-item:hover .related-title {
  color: var(--color-primary);
}

.related-meta {
  font-size: 12px;
  color: var(--text-muted);
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--bg-footer);
  color: #AAAAAA;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr;
  gap: var(--space-8);
  padding: var(--space-10) 0 var(--space-8);
  border-bottom: 1px solid #333333;
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.8;
  color: #888888;
  margin: var(--space-4) 0 var(--space-5);
  max-width: 280px;
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social a {
  width: 36px;
  height: 36px;
  background: #333333;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  color: #AAAAAA;
}

.footer-social a:hover {
  background: var(--color-primary);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.footer-social svg {
  width: 16px;
  height: 16px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: var(--space-5);
  position: relative;
  padding-bottom: var(--space-3);
}

.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 30px;
  height: 2px;
  background: var(--color-primary);
}

.footer-col li {
  margin-bottom: var(--space-3);
}

.footer-col a {
  font-size: 13px;
  color: #999999;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: #FFFFFF;
}

.footer-contact li {
  display: flex;
  gap: var(--space-3);
  font-size: 13px;
  margin-bottom: var(--space-4);
  line-height: 1.8;
  color: #999999;
}

.footer-contact svg {
  width: 14px;
  height: 14px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 4px;
}

.footer-bottom {
  background: var(--bg-footer-dark);
  padding: var(--space-5) 0;
  font-size: 12px;
  color: #666666;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-5);
}

.footer-bottom-links a {
  color: #666666;
}

.footer-bottom-links a:hover {
  color: #AAAAAA;
}

/* ---------- 回到顶部 ---------- */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999;
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(211, 47, 47, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  cursor: pointer;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(211, 47, 47, 0.4);
}

.back-to-top svg {
  width: 18px;
  height: 18px;
}

/* ---------- 滚动揭示动画 ---------- */
.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 关于我们页面 ---------- */
.about-hero {
  background: linear-gradient(135deg, #B71C1C, #D32F2F);
  padding: var(--space-16) 0;
  color: #FFFFFF;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.about-hero::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.about-hero::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: 10%;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
}

.about-hero-inner {
  position: relative;
  z-index: 2;
}

.about-hero h1 {
  font-size: 42px;
  font-weight: 800;
  margin-bottom: var(--space-4);
  letter-spacing: 4px;
  color: #FFFFFF;
}

.about-hero p {
  font-size: 16px;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

.about-section {
  padding: var(--space-12) 0;
  background: #FFFFFF;
}

.about-section.gray {
  background: var(--bg-body);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
}

.about-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-5);
  text-align: center;
}

.about-content h2::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background: var(--color-primary);
  margin: var(--space-3) auto 0;
  border-radius: 2px;
}

.about-content p {
  font-size: 15px;
  line-height: 2;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  text-indent: 2em;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-8);
}

.about-stat-item {
  text-align: center;
  padding: var(--space-5);
  background: #FFFFFF;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.about-stat-num {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
  line-height: 1.1;
}

.about-stat-label {
  font-size: 14px;
  color: var(--text-tertiary);
}

.about-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.value-card {
  padding: var(--space-6);
  background: #FFFFFF;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--border-light);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-primary);
}

.value-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  background: var(--color-primary-50);
  color: var(--color-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.value-icon svg {
  width: 28px;
  height: 28px;
}

.value-card h3 {
  font-size: 18px;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}

.value-card p {
  font-size: 14px;
  color: var(--text-tertiary);
  line-height: 1.8;
}

.about-team {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.team-member {
  text-align: center;
  padding: var(--space-5);
  background: #FFFFFF;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

.team-member:hover {
  border-color: var(--border-primary);
  box-shadow: var(--shadow-sm);
}

.team-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto var(--space-4);
  background: linear-gradient(135deg, #D32F2F, #B71C1C);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-size: 28px;
  font-weight: 700;
}

.team-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.team-role {
  font-size: 13px;
  color: var(--text-tertiary);
}

/* ---------- 滚动条美化 ---------- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: #F5F5F5; }
::-webkit-scrollbar-thumb { background: #CCCCCC; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #AAAAAA; }

/* ---------- 响应式 ---------- */
@media (max-width: 1200px) {
  .container {
    max-width: 960px;
  }

  .main-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    order: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
  }

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

  .category-grid {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

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

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

@media (max-width: 992px) {
  .container {
    max-width: 720px;
    padding: 0 16px;
  }

  .header-main {
    flex-wrap: wrap;
    gap: var(--space-3);
  }

  .header-search {
    order: 3;
    max-width: 100%;
    flex-basis: 100%;
  }

  .feature-section {
    grid-template-columns: 1fr;
  }

  .feature-side {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .carousel {
    aspect-ratio: 16 / 9;
  }

  .carousel-title {
    font-size: 22px;
  }

  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .article-wrap {
    padding: var(--space-5);
  }

  .article-title {
    font-size: 24px;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  body {
    font-size: 14px;
  }

  .top-bar {
    display: none;
  }

  .logo-text {
    font-size: 22px;
  }

  .logo-icon {
    width: 40px;
    height: 40px;
    font-size: 20px;
  }

  .header-actions {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }

  .nav-link {
    padding: 0 var(--space-4);
    font-size: 14px;
    height: 44px;
    line-height: 44px;
  }

  .carousel {
    aspect-ratio: 4 / 3;
  }

  .carousel-slide-content {
    left: var(--space-4);
    right: var(--space-4);
    bottom: var(--space-5);
  }

  .carousel-title {
    font-size: 18px;
  }

  .carousel-desc {
    display: none;
  }

  .section-title h2 {
    font-size: 18px;
  }

  .news-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .news-card-title {
    font-size: 13px;
  }

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

  .feature-side {
    grid-template-columns: 1fr;
  }

  .news-list-thumb {
    width: 100px;
    height: 70px;
  }

  .news-list-title {
    font-size: 14px;
  }

  .news-list-summary {
    display: none;
  }

  .article-wrap {
    padding: var(--space-4);
  }

  .article-title {
    font-size: 20px;
  }

  .article-body {
    font-size: 15px;
  }

  .article-actions {
    gap: var(--space-3);
  }

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

  .category-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
  }

  .category-icon {
    width: 38px;
    height: 38px;
  }

  .category-name {
    font-size: 13px;
  }

  .about-hero h1 {
    font-size: 32px;
  }

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

  .footer-main {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-bottom-links {
    justify-content: center;
    flex-wrap: wrap;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .news-grid {
    grid-template-columns: 1fr;
  }

  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .article-title {
    font-size: 18px;
  }

  .article-meta {
    gap: var(--space-3);
    font-size: 12px;
  }

  .about-hero h1 {
    font-size: 26px;
  }

  .about-stat-num {
    font-size: 28px;
  }
}