/* 重置样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Bilibili风格变量 */
:root {
  --bili-blue: #00aeec;
  --bili-blue-hover: #009bd6;
  --bili-pink: #fb7299;
  --text-dark: #18191c;
  --text-gray: #9499a0;
  --bg-gray: #f1f2f3;
  --white: #ffffff;
  --border-color: #e7e7e7;
  --hover-bg: #f6f7f8;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica, Arial, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  background-color: var(--bg-gray);
  color: var(--text-dark);
  line-height: 1.6;
  font-size: 14px;
}

/* 通用容器 */
.main-container {
  width: 100%;
  max-width: 1680px;
  margin: 0 auto;
  padding: 0 20px;
}

a {
  color: var(--text-dark);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--bili-blue);
}

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

/* 头部导航 - 继承原样式 */
.page-header {
  background-color: var(--white);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border-color);
  height: 64px;
}

.page-header .main-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 64px;
  gap: 20px;
}

.brand-section {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex: 0 0 auto;
}

.brand-logo {
  font-size: 20px;
  font-weight: 700;
  margin-right: 30px;
  letter-spacing: -0.02em;
  color: var(--bili-blue);
}

.brand-logo a {
  color: var(--bili-blue);
}

.brand-subtitle {
  font-size: 12px;
  color: var(--text-gray);
  margin-left: 12px;
}

.search-section {
  display: flex;
  align-items: center;
}

.search-button {
  background-color: var(--bili-blue);
  border: none;
  color: white;
  cursor: pointer;
  font-size: 13px;
  padding: 8px 16px;
  border-radius: 6px;
  white-space: nowrap;
  transition: all 0.2s ease;
  font-weight: 500;
}

.search-button:hover {
  background-color: var(--bili-blue-hover);
}

/* PC端分类导航 */
.desktop-category-nav {
  background-color: var(--white);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 0;
  display: block;
}

.category-list-horizontal {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  justify-content: flex-start;
  align-items: center;
}

.category-list-horizontal li {
  margin: 0;
}

.category-list-horizontal a {
  display: inline-block;
  padding: 8px 16px;
  background-color: transparent;
  color: var(--text-gray);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 400;
  transition: all 0.2s ease;
  border: none;
}

.category-list-horizontal a:hover {
  background-color: var(--hover-bg);
  color: var(--bili-blue);
}

.category-list-horizontal a.all-categories {
  background-color: var(--bili-blue);
  color: white;
  font-weight: 500;
}

.category-list-horizontal a.all-categories:hover {
  background-color: var(--bili-blue-hover);
}

/* 移动端导航 */
.category-nav {
  display: none;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 10;
}

.mobile-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--text-dark);
  border-radius: 3px;
  transition: all 0.3s ease;
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* 搜索模态框 */
.search-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.search-overlay.active {
  display: flex;
}

.search-panel {
  width: 100%;
  max-width: 600px;
  padding: 25px;
}

.search-panel input {
  width: 100%;
  padding: 16px;
  font-size: 16px;
  background-color: #fff;
  border: 2px solid var(--bili-blue);
  border-radius: 8px;
  color: #333;
}

.search-close-btn {
  position: absolute;
  top: 25px;
  right: 35px;
  font-size: 32px;
  color: #fff;
  cursor: pointer;
}

/* ======================= */
/* 新的Bilibili风格主布局 */
/* ======================= */

.bili-main {
  padding: 20px 0;
}

.bili-container {
  width: 100%;
  max-width: 1680px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

/* 左侧视频区域 */
.bili-left {
  flex: 1;
  min-width: 0;
}

/* 视频播放器 */
.bili-player {
  width: 100%;
  background-color: var(--white);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.bili-player video {
  width: 100%;
  height: auto;
  display: block;
}

/* Video.js 播放器样式 */
.video-js {
  width: 100% !important;
  height: auto !important;
  background-color: #000;
}

.video-js .vjs-poster {
  background-size: contain !important;
  background-repeat: no-repeat !important;
  background-position: center !important;
}

.video-js .vjs-control-bar {
  background-color: rgba(0,0,0,0.7);
}

.video-js .vjs-play-progress {
  background-color: var(--bili-blue);
}

/* 视频信息 */
.bili-video-info {
  background-color: var(--white);
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.bili-title {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.bili-stats {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-gray);
}

.bili-stat {
  position: relative;
}

.bili-stat::after {
  content: '·';
  position: absolute;
  right: -10px;
  color: var(--text-gray);
}

.bili-stat:last-child::after {
  display: none;
}

/* 视频来源信息 */
.bili-source-info {
  background-color: var(--white);
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  color: var(--text-gray);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.bili-current-source {
  margin-bottom: 8px;
}

.bili-source-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.bili-source-tab {
  padding: 4px 8px;
  background-color: #f0f0f0;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid var(--border-color);
}

.bili-source-tab:hover {
  background-color: var(--bili-blue);
  color: white;
}

.bili-source-tab.active {
  background-color: var(--bili-blue);
  color: white;
}

.bili-warning {
  padding: 8px 0;
  font-size: 12px;
  color: #856404;
}

.bili-btn {
  font-size: 12px;
  margin-left: 8px;
  background-color: var(--bili-blue);
  color: white;
  border: none;
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.bili-btn:hover {
  background-color: var(--bili-blue-hover);
}

/* 右侧相关视频 */
.bili-right {
  flex: 0 0 320px;
  min-width: 320px;
}

.bili-related {
  background-color: var(--white);
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  height: fit-content;
  max-height: 80vh;
  overflow-y: auto;
}

.bili-related-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.bili-related-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.bili-related-item {
  display: flex;
  gap: 12px;
  cursor: pointer;
  padding: 8px;
  border-radius: 6px;
  transition: background-color 0.2s ease;
}

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

.bili-related-cover {
  flex: 0 0 120px;
  height: 68px;
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  background-color: #f0f0f0;
}

.bili-related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bili-duration {
  position: absolute;
  bottom: 4px;
  right: 4px;
  background-color: rgba(0,0,0,0.8);
  color: white;
  padding: 2px 4px;
  border-radius: 2px;
  font-size: 11px;
}

.bili-related-content {
  flex: 1;
  min-width: 0;
}

.bili-related-title {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--text-dark);
  margin-bottom: 6px;
  height: 36px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.bili-related-title a:hover {
  color: var(--bili-blue);
}

.bili-related-meta {
  display: flex;
  gap: 8px;
  font-size: 11px;
  color: var(--text-gray);
}

.bili-related-meta span::after {
  content: '·';
  margin-left: 8px;
  color: var(--text-gray);
}

.bili-related-meta span:last-child::after {
  display: none;
}

/* 首页视频网格 - 保持原样 */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin: 20px 0;
  padding: 0;
}

.video-card {
  background-color: var(--white);
  border-radius: 8px;
  overflow: hidden;
  transition: all 0.2s ease;
  cursor: pointer;
}

.video-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transform: translateY(-2px);
}

.video-cover {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%;
  background-color: #f0f0f0;
  overflow: hidden;
}

.video-cover img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-duration {
  position: absolute;
  bottom: 6px;
  right: 6px;
  background-color: rgba(0,0,0,0.8);
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 400;
}

.video-category {
  position: absolute;
  top: 6px;
  left: 6px;
  background-color: var(--bili-pink);
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 500;
}

.video-info {
  padding: 12px;
}

.video-card .video-title {
  font-size: 18px;
  font-weight: 500;
  line-height: 1.4;
  color: var(--text-dark);
  margin-bottom: 8px;
  height: 55px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.video-card .video-title a:hover {
  color: var(--bili-blue);
}

.video-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-gray);
}

.video-views, .video-danmaku {
  position: relative;
}

.video-views::after {
  content: '·';
  position: absolute;
  right: -8px;
  color: var(--text-gray);
}

/* 分页导航 */
.pagination-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 40px 0;
  flex-wrap: wrap;
}

.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  margin: 0 4px 8px;
  padding: 0 12px;
  background-color: var(--white);
  color: var(--text-dark);
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
  border: 1px solid var(--border-color);
}

.page-link.current {
  background-color: var(--bili-blue);
  color: white;
  border-color: var(--bili-blue);
}

.page-link:hover:not(.current) {
  background-color: var(--hover-bg);
  color: var(--bili-blue);
}

.page-link.dots {
  background: none;
  border: none;
}

/* 页脚 */
.page-footer {
  background-color: var(--bg-gray);
  padding: 40px 0;
  margin-top: 60px;
  color: var(--text-gray);
  text-align: center;
  border-top: 1px solid var(--border-color);
}

.footer-content {
  font-size: 13px;
  line-height: 1.6;
}

.footer-content p {
  margin-bottom: 8px;
}

/* 无结果 */
.empty-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-gray);
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .bili-right {
    flex: 0 0 280px;
    min-width: 280px;
  }
  
  .bili-related-cover {
    flex: 0 0 100px;
    height: 56px;
  }
}

@media (max-width: 992px) {
  .bili-container {
    flex-direction: column;
  }
  
  .bili-right {
    flex: none;
    width: 100%;
    min-width: auto;
  }
  
  .bili-related {
    max-height: none;
    overflow-y: visible;
  }
  
  .bili-related-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
  }
  
  .video-grid {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .desktop-category-nav {
    display: none;
  }
  
  .page-header .main-container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
  }
  
  .brand-logo {
    font-size: 18px;
    margin-right: 0;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .category-nav {
    display: block;
    position: fixed;
    top: 0;
    left: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--white);
    transition: left 0.3s ease;
    z-index: 999;
    padding: 80px 20px 20px;
    overflow-y: auto;
    border-right: 1px solid var(--border-color);
  }
  
  .category-nav.active {
    left: 0;
  }
  
  .category-nav ul {
    flex-direction: column;
    max-height: none;
    justify-content: flex-start;
    list-style: none;
    margin: 0;
    padding: 0;
  }
  
  .category-nav li {
    margin: 4px 0;
    width: 100%;
  }
  
  .category-nav a {
    display: block;
    padding: 12px 16px;
    width: 100%;
    color: var(--text-dark);
  }
  
  .video-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
  }
  
  .bili-related-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .video-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .pagination-nav .mobile-hidden {
    display: none;
  }
  
  .video-info {
    padding: 8px;
  }
  
  .video-card .video-title {
    font-size: 13px;
    height: 36px;
  }
  
  .video-meta {
    font-size: 11px;
  }
}

/* 通用覆盖样式 */
.overlay-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  z-index: 998;
  display: none;
}

.overlay-menu.active {
  display: block;
}