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

/* Dailymotion风格变量 */
:root {
  --dm-orange: #ff6900;
  --dm-orange-hover: #e55a00;
  --dm-blue: #0066ff;
  --dm-black: #1a1a1a;
  --dm-gray: #666666;
  --dm-light-gray: #999999;
  --dm-bg: #ffffff;
  --dm-sidebar-bg: #f8f9fa;
  --dm-border: #e1e5e9;
  --dm-hover-bg: #f1f3f4;
}

body {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--dm-bg);
  color: var(--dm-black);
  line-height: 1.5;
  font-size: 14px;
}

/* 头部导航 */
.page-header {
  background-color: var(--dm-bg);
  border-bottom: 1px solid var(--dm-border);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  height: 60px;
}

.page-header .main-container {
  display: flex;
  align-items: center;
  height: 60px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.brand-logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--dm-black);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-right: 40px;
}

.brand-logo a {
  color: var(--dm-black);
}

.brand-logo a:hover {
  color: var(--dm-orange);
}

.search-section {
  flex: 1;
  max-width: 400px;
  margin-right: 20px;
}

.search-input {
  width: 100%;
  padding: 10px 15px;
  border: 1px solid var(--dm-border);
  border-radius: 20px;
  font-size: 14px;
  background-color: #f8f9fa;
}

.search-input:focus {
  outline: none;
  border-color: var(--dm-orange);
  background-color: white;
}

.search-button {
  background-color: var(--dm-orange);
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 16px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: background-color 0.2s ease;
}

.search-button:hover {
  background-color: var(--dm-orange-hover);
}

/* 移动端切换按钮 */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-left: 10px;
}

.mobile-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--dm-black);
  transition: all 0.3s ease;
  border-radius: 1px;
}

.mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* 主布局容器 */
.dm-layout {
  display: flex;
  max-width: 1200px;
  margin: 0 auto;
  min-height: calc(100vh - 60px);
}

/* 左侧导航 */
.dm-sidebar {
  width: 200px;
  background-color: var(--dm-sidebar-bg);
  border-right: 1px solid var(--dm-border);
  padding: 20px 0;
  height: calc(100vh - 60px);
  position: sticky;
  top: 60px;
  overflow-y: auto;
}

.dm-nav-section {
  margin-bottom: 30px;
}

.dm-nav-title {
  padding: 0 20px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--dm-gray);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.dm-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.dm-nav-list li {
  margin: 0;
}

.dm-nav-list a {
  display: flex;
  align-items: center;
  padding: 8px 20px;
  color: var(--dm-black);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
}

.dm-nav-list a:hover {
  background-color: var(--dm-hover-bg);
  border-left-color: var(--dm-orange);
}

.dm-nav-list a.active {
  background-color: var(--dm-hover-bg);
  border-left-color: var(--dm-orange);
  font-weight: 500;
}

/* 中间内容区 */
.dm-main {
  flex: 1;
  padding: 20px;
  max-width: calc(100% - 200px - 250px);
}

.dm-page-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--dm-black);
}

.dm-video-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* 单个视频卡片 - 单列布局 */
.dm-video-card {
  display: flex;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  overflow: hidden;
  transition: all 0.2s ease;
  height: 180px;
}

.dm-video-card:hover {
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  transform: translateY(-2px);
}

.dm-video-thumbnail {
  position: relative;
  width: 320px;
  height: 180px;
  overflow: hidden;
  flex-shrink: 0;
}

.dm-video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dm-video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background-color: rgba(0,0,0,0.8);
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.dm-video-category {
  position: absolute;
  top: 8px;
  left: 8px;
  background-color: var(--dm-orange);
  color: white;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
}

.dm-video-content {
  flex: 1;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.dm-video-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
  color: var(--dm-black);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dm-video-title a {
  color: inherit;
  text-decoration: none;
}

.dm-video-title a:hover {
  color: var(--dm-orange);
}

.dm-video-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--dm-gray);
  margin-top: auto;
}

.dm-video-stats {
  display: flex;
  gap: 16px;
}

.dm-video-views, .dm-video-likes {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 右侧广告区域 */
.dm-sidebar-right {
  width: 250px;
  padding: 20px;
  background-color: var(--dm-sidebar-bg);
  border-left: 1px solid var(--dm-border);
}

.dm-ad-placeholder {
  background-color: #e9ecef;
  border: 2px dashed #adb5bd;
  border-radius: 8px;
  padding: 40px 20px;
  text-align: center;
  color: var(--dm-gray);
  font-size: 14px;
  margin-bottom: 20px;
}

/* 分页导航 */
.dm-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 40px 0;
  gap: 8px;
}

.dm-page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  background-color: white;
  color: var(--dm-black);
  border: 1px solid var(--dm-border);
  border-radius: 6px;
  text-decoration: none;
  font-size: 14px;
  transition: all 0.2s ease;
}

.dm-page-link:hover {
  background-color: var(--dm-hover-bg);
  border-color: var(--dm-orange);
}

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

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

/* 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: 500px;
  padding: 20px;
}

.search-panel input {
  width: 100%;
  padding: 15px;
  font-size: 16px;
  border: none;
  border-radius: 8px;
  background-color: white;
}

.search-close-btn {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 28px;
  color: white;
  cursor: pointer;
}

/* 页脚 */
.page-footer {
  background-color: var(--dm-sidebar-bg);
  border-top: 1px solid var(--dm-border);
  padding: 40px 0;
  margin-top: 60px;
  text-align: center;
  color: var(--dm-gray);
  font-size: 13px;
}

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

/* 响应式设计 */
@media (max-width: 1024px) {
  .dm-sidebar-right {
    display: none;
  }
  
  .dm-main {
    max-width: calc(100% - 200px);
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: flex;
  }
  
  .search-section {
    display: none;
  }
  
  .dm-layout {
    flex-direction: column;
  }
  
  .dm-sidebar {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    width: 280px;
    height: calc(100vh - 60px);
    z-index: 99;
    background-color: white;
    box-shadow: 2px 0 8px rgba(0,0,0,0.1);
  }
  
  .dm-sidebar.active {
    display: block;
  }
  
  .dm-main {
    max-width: 100%;
    padding: 15px;
  }
  
  .dm-video-card {
    flex-direction: column;
    height: auto;
  }
  
  .dm-video-thumbnail {
    width: 100%;
    height: 200px;
  }
  
  .dm-video-content {
    padding: 12px;
  }
  
  .dm-video-title {
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .page-header .main-container {
    padding: 0 15px;
  }
  
  .brand-logo {
    font-size: 20px;
    margin-right: 20px;
  }
  
  .dm-main {
    padding: 10px;
  }
  
  .dm-video-card {
    margin-bottom: 15px;
  }
  
  .dm-video-thumbnail {
    height: 180px;
  }
}

/* 播放器页面特殊布局 */
.dm-player-main {
  flex: 1;
  padding: 20px;
  max-width: calc(100% - 200px - 300px);
}

.dm-player-container {
  width: 100%;
  background-color: #000;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  min-height: 300px;
}

/* 修复播放器下方黑色区域问题 */
.dm-player-container .video-js {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
}

.dm-player-container .video-js video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background-color: #000;
}

.dm-player-container video,
.dm-player-container .video-js {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #000;
}

.dm-player-container video {
  object-fit: contain;
}

.dm-video-info {
  background-color: white;
  padding: 20px;
  border-radius: 8px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.dm-video-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--dm-black);
  margin-bottom: 16px;
  line-height: 1.4;
}

.dm-video-stats {
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
}

.dm-stat-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--dm-gray);
}

.dm-stat-icon {
  font-size: 16px;
}

.dm-stat-text {
  font-weight: 500;
}

.dm-source-info {
  background-color: white;
  padding: 16px 20px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  font-size: 14px;
}

.dm-current-source {
  margin-bottom: 12px;
}

.dm-source-label {
  color: var(--dm-gray);
  margin-right: 8px;
}

.dm-source-name {
  color: var(--dm-orange);
  font-weight: 600;
}

.dm-source-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.dm-source-tab {
  padding: 6px 12px;
  background-color: #f8f9fa;
  border: 1px solid var(--dm-border);
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--dm-gray);
}

.dm-source-tab:hover {
  background-color: var(--dm-orange);
  color: white;
  border-color: var(--dm-orange);
}

.dm-source-tab.active {
  background-color: var(--dm-orange);
  color: white;
  border-color: var(--dm-orange);
}

.dm-warning {
  border-top: 1px solid var(--dm-border);
  padding-top: 16px;
}

.dm-warning-text {
  color: #856404;
  background-color: #fff3cd;
  border: 1px solid #ffeaa7;
  border-radius: 4px;
  padding: 8px 12px;
  margin-bottom: 12px;
  font-size: 13px;
}

.dm-action-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.dm-btn {
  padding: 8px 16px;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.dm-btn-primary {
  background-color: var(--dm-orange);
  color: white;
}

.dm-btn-primary:hover {
  background-color: var(--dm-orange-hover);
}

.dm-btn-secondary {
  background-color: #6c757d;
  color: white;
}

.dm-btn-secondary:hover {
  background-color: #5a6268;
}

/* 右侧相关视频区域 */
.dm-related-sidebar {
  width: 300px;
  padding: 20px;
  background-color: var(--dm-sidebar-bg);
  border-left: 1px solid var(--dm-border);
  height: calc(100vh - 60px);
  position: sticky;
  top: 60px;
  overflow-y: auto;
}

.dm-related-container {
  background-color: white;
  border-radius: 8px;
  padding: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

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

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

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

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

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

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

.dm-related-thumbnail .dm-video-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;
}

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

.dm-related-video-title {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  margin-bottom: 6px;
  height: 36px;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.dm-related-video-title a {
  color: var(--dm-black);
  text-decoration: none;
}

.dm-related-video-title a:hover {
  color: var(--dm-orange);
}

.dm-related-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 11px;
  color: var(--dm-gray);
}

.dm-related-views {
  font-weight: 500;
}

.dm-no-related {
  text-align: center;
  padding: 40px 20px;
  color: var(--dm-gray);
}

.dm-no-related p {
  margin-bottom: 16px;
}

/* 播放器页面响应式 */
@media (max-width: 1200px) {
  .dm-related-sidebar {
    width: 260px;
  }
  
  .dm-player-main {
    max-width: calc(100% - 200px - 260px);
  }
  
  .dm-related-thumbnail {
    width: 100px;
    height: 56px;
  }
}

@media (max-width: 992px) {
  .dm-layout {
    flex-direction: column;
  }
  
  .dm-player-main {
    max-width: 100%;
    order: 1;
  }
  
  .dm-related-sidebar {
    width: 100%;
    height: auto;
    position: static;
    order: 2;
    border-left: none;
    border-top: 1px solid var(--dm-border);
  }
  
  .dm-related-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .dm-player-main {
    padding: 15px;
  }
  
  .dm-video-info {
    padding: 16px;
  }
  
  .dm-video-title {
    font-size: 18px;
  }
  
  .dm-video-stats {
    gap: 16px;
  }
  
  .dm-related-sidebar {
    padding: 15px;
  }
  
  .dm-related-list {
    grid-template-columns: 1fr;
  }
  
  .dm-related-item {
    padding: 6px;
  }
  
  .dm-related-thumbnail {
    width: 100px;
    height: 56px;
  }
}

/* 遮罩层 */
.overlay-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  z-index: 98;
  display: none;
}

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