:root {
  --primary-color: #1e90ff;
  --primary-color-dark: #1c86ee;
  --bg-color: #121212;
  --text-color: #e0e0e0;
  --text-color-light: #ccc;
  --text-color-lighter: #aaa;
  --card-bg: #1e1e1e;
  --card-radius: 0.5rem;
  --shadow: 0 0.125rem 0.5rem #00000080;
  --menu-bg: #1e1e1e;
  --menu-width: 200px;
  --transition: 0.2s ease;
  --transition-slow: 0.4s ease;
  --episode-bg: #333;
  --border-color: #444;
  --text-high-contrast: #ffffff;
  --overlay-bg: #000000cc;
  --header-height: 3.75rem;
  --content-spacing: 0.75rem;
  --scroll-offset: calc(var(--header-height) + var(--content-spacing));
}

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

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

html {
  scroll-padding-top: var(--scroll-offset);
}

body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  font-size: 1rem;
  line-height: 1.5;
}

a {
  text-decoration: none;
  color: inherit;
  transition: opacity var(--transition);
}

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

.hover-opacity:hover {
  opacity: 0.8;
}

.container {
  max-width: 100rem;
  margin: 0 auto;
  padding: 0 1.25rem;
  width: 100%;
}

.header {
  background: var(--menu-bg);
  box-shadow: var(--shadow);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 1.25rem;
}

.logo img {
  height: 2.5rem;
  display: block;
}

.nav {
  display: flex;
  list-style: none;
  gap: 1.25rem;
  align-items: center;
  flex-grow: 1;
}

.nav a {
  display: flex;
  align-items: center;
  font-weight: 500;
  font-size: 1rem;
  height: 2.5rem;
  opacity: 0.8;
  transition: color var(--transition);
}

.nav a.active,
.nav a:hover {
  color: var(--primary-color);
  opacity: 1;
}

.menu-toggle {
  display: none;
  cursor: pointer;
  padding: 0.625rem;
  background: transparent;
  border: none;
  outline: none;
  transition: opacity var(--transition);
}

.menu-toggle:hover {
  opacity: 0.8;
}

.menu-toggle span {
  display: block;
  width: 1.5625rem;
  height: 0.125rem;
  background: var(--text-color);
  margin: 0.3125rem 0;
  transition: var(--transition);
}

.search-form {
  display: flex;
  align-items: center;
  width: 30%;
  min-width: 12.5rem;
  position: relative;
}

.search-form input {
  flex: 1;
  padding: 0.5rem 2.5rem 0.5rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 1.875rem;
  outline: none;
  font-size: 0.875rem;
  background: var(--episode-bg);
  color: var(--text-color);
  height: 2.5rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-form input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(30, 144, 255, 0.2);
}

.search-form button {
  position: absolute;
  right: 0.75rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  transition: opacity var(--transition);
}

.search-form button:hover {
  opacity: 0.8;
}

.search-form button svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: currentColor;
}

.ad-wrapper {
  position: relative;
  width: 100%;
  background: var(--bg-color);
  display: flex;
  justify-content: center;
  margin-top: var(--header-height);
  margin-bottom: -4rem;
  z-index: 999;
  pointer-events: auto;
}

.ad-banner {
  max-width: 1600px;
  width: 100%;
  padding: 1.25rem;
  text-align: center;
  transition: all var(--transition);
}

.ad-link {
  display: block;
  transition: opacity var(--transition);
}

.ad-link:hover {
  opacity: 0.95;
}

.ad-banner img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 0.75rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  background-color: #2a2a2a;
}

.main-content,
.carousel,
.filter,
.detail-wrapper,
.player-card,
.search-result {
  padding-top: var(--scroll-offset);
  margin-top: 0;
}

.ad-wrapper + .main-content,
.ad-wrapper + .carousel,
.ad-wrapper + .filter,
.ad-wrapper + .detail-wrapper,
.ad-wrapper + .player-card,
.ad-wrapper + .search-result {
  padding-top: var(--content-spacing);
}

.grid {
  margin-bottom: 1.25rem;
}

body > .grid:first-of-type,
.main-content > .grid:first-of-type,
.carousel + .grid,
.filter + .grid,
.search-result + .grid,
.recommend-section {
  padding-top: var(--scroll-offset);
  margin-top: 0;
}

.ad-wrapper + .grid:first-of-type {
  padding-top: var(--content-spacing);
}

.filter ~ .grid,
.filter + .grid,
.search-result + .grid {
  padding-top: 0;
  margin-top: 0;
}

.recommend-section {
  margin: 2.5rem -1.25rem 0;
  padding: 0 1.25rem;
}

.recommend-section:first-of-type {
  padding-top: var(--scroll-offset);
}

.ad-wrapper + .recommend-section:first-of-type {
  padding-top: var(--content-spacing);
}

.section-title {
  font-size: 1.5rem;
  margin: 0 0 1.25rem 0;
}

.search-result {
  margin: 0 0 1.25rem 0;
  text-align: left;
}

.search-result strong {
  color: var(--primary-color);
  font-weight: bold;
}

.carousel {
  position: relative;
  margin-bottom: 1.25rem;
  border-radius: var(--card-radius);
  overflow: hidden;
}

.carousel-container {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-item {
  flex: 0 0 100%;
  position: relative;
  aspect-ratio: 16/9;
}

.carousel-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--card-radius);
}

.carousel-title {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  color: var(--text-high-contrast);
  font-size: 1.5rem;
  text-shadow: 2px 2px 4px #00000080;
  max-width: 90%;
  word-break: break-word;
}

.carousel-controls {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}

.carousel-controls button {
  background: none;
  border: none;
  padding: 0.625rem;
  cursor: pointer;
  color: #ffffffcc;
  text-shadow: 0 2px 8px #0000004d;
  font-size: 1.75rem;
  width: 3.125rem;
  height: 3.125rem;
  opacity: 0.8;
  transition: opacity var(--transition);
  pointer-events: all;
}

.carousel-controls button:hover {
  opacity: 1;
}

.grid {
  display: grid;
  gap: 1.25rem;
}

.card-item {
  overflow: hidden;
  color: inherit;
  position: relative;
}

.card {
  position: relative;
  background: var(--card-bg);
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 3/4;
}

.card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
  backface-visibility: hidden;
}

.card:hover img {
  transform: scale(1.05);
  will-change: transform;
}

.card-rating,
.card-status {
  position: absolute;
  background: var(--overlay-bg);
  color: var(--text-high-contrast);
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: calc(100% - 1rem);
}

.card-rating {
  top: 0.5rem;
  left: 0.5rem;
}

.card-status {
  bottom: 0.5rem;
  right: 0.5rem;
}

.card-title {
  display: block;
  margin-top: 0.5rem;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.filter {
  margin: 0 0 1.25rem 0;
}

.filter-row {
  display: flex;
  align-items: center;
  margin-bottom: 0.625rem;
  gap: 0.625rem;
}

.filter-title {
  font-size: 1rem;
  white-space: nowrap;
  flex-shrink: 0;
  font-weight: 500;
}

.filter-body {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
}

.filter-item {
  padding: 0.375rem 0.75rem;
  background: transparent;
  border-radius: 1.25rem;
  color: var(--text-color);
  transition: all var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
  font-size: 0.875rem;
  cursor: pointer;
}

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

.filter-item.active {
  background: var(--primary-color);
  color: var(--text-high-contrast);
}

.page-nav {
  display: flex;
  justify-content: center;
  list-style: none;
  padding: 1.25rem 0;
  gap: 0.625rem;
  flex-wrap: nowrap;
}

.page-item {
  background: var(--card-bg);
  border-radius: 0.25rem;
  flex-shrink: 0;
  font-size: 0.875rem;
  transition: background var(--transition);
}

.page-item.active {
  background: var(--primary-color);
}

.page-link {
  color: var(--text-color);
  display: block;
  padding: 0.5rem 1rem;
  transition: color var(--transition);
}

.page-item.active .page-link {
  color: var(--text-high-contrast);
}

.page-item:hover {
  background: var(--primary-color);
}

.page-item:hover .page-link {
  color: var(--text-high-contrast);
}

.detail-wrapper {
  display: flex;
  gap: 1.25rem;
}

.poster {
  flex: 0 0 18.75rem;
  height: 25.8125rem;
  position: relative;
  overflow: hidden;
  border-radius: var(--card-radius);
  box-shadow: var(--shadow);
}

.poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.poster:hover img {
  transform: scale(1.02);
}

.detail-content {
  flex: 1;
  padding: 0 0.625rem;
}

.detail-header h1 {
  font-size: 2rem;
  line-height: 1.2;
  margin-bottom: 0.9375rem;
  color: var(--text-high-contrast);
  font-weight: 600;
}

.tag-group,
.detail-tags,
.player-info-tag {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.tag-link,
.player-info-tag-link a {
  color: var(--primary-color);
  font-size: 0.8125rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--primary-color);
  border-radius: 0.25rem;
  transition: all var(--transition);
}

.tag-link:hover,
.player-info-tag-link a:hover {
  background: var(--primary-color);
  color: var(--text-color);
}

.detail-info p {
  margin: 0.75rem 0;
  font-size: 0.9375rem;
  color: var(--text-color-light);
}

.detail-info p span:first-child {
  color: #999;
  min-width: 3.125rem;
  display: inline-block;
}

.detail-info p a {
  color: var(--primary-color);
}

.detail-sketch {
  position: relative;
  line-height: 1.6;
  font-size: 0.9375rem;
  color: var(--text-color-lighter);
  margin-top: 0.625rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.detail-sketch.expanded {
  -webkit-line-clamp: unset;
}

.expand-btn {
  color: var(--primary-color);
  cursor: pointer;
  font-size: 0.8125rem;
  display: inline-block;
  transition: opacity var(--transition);
}

.expand-btn:hover {
  opacity: 0.8;
}

.detail-play-btn {
  margin-top: 1.25rem;
}

.btn-danger {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--primary-color);
  border-radius: 0.25rem;
  font-size: 1rem;
  transition: background var(--transition);
  font-weight: 500;
  letter-spacing: 1px;
  color: var(--text-high-contrast);
}

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

.playlist-section {
  margin-top: 2.5rem;
}

.playlist-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.9375rem;
  margin-bottom: 1.25rem;
}

.playlist-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.playlist-left h3 {
  margin: 0;
  font-size: 1.5rem;
  white-space: nowrap;
}

.sort-tabs {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sort-link {
  padding: 0.25rem 0.5rem;
  color: var(--text-color);
  transition: color var(--transition);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
}

.sort-link.active,
.sort-link:hover {
  color: var(--primary-color);
}

.sort-btn {
  background: none;
  border: none;
  color: var(--text-color);
  padding: 0.25rem 0.5rem;
  cursor: pointer;
  transition: color var(--transition);
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
}

.sort-btn:hover {
  color: var(--primary-color);
}

.sort-content {
  margin-top: 1.25rem;
}

.sort-pane {
  display: none;
}

.sort-pane.active {
  display: block;
}

.playlist-list {
  display: grid;
  gap: 0.625rem;
  list-style: none;
  max-height: 20rem;
  overflow-y: auto;
  padding-right: 0.625rem;
}

.playlist-list a {
  display: block;
  padding: 0.75rem;
  background: var(--card-bg);
  color: var(--text-color);
  border-radius: 0.25rem;
  text-align: center;
  transition: all var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.875rem;
}

.playlist-list a.active,
.playlist-list a:hover,
.episode-item.active,
.episode-item:hover {
  background: var(--primary-color);
  color: var(--text-high-contrast);
}

.player-card {
  display: flex;
}

.player-frame {
  flex: 1;
  background: #000;
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 16/9;
  border-radius: var(--card-radius) 0 0 var(--card-radius);
}

.episode-list {
  flex: 0 0 18.75rem;
  background: var(--card-bg);
  overflow: hidden;
  padding: 1.25rem;
  box-shadow: var(--shadow);
  border-radius: 0 var(--card-radius) var(--card-radius) 0;
}

.player-info-heading h1 {
  margin-bottom: 0.9375rem;
}

.player-info-heading h1 a {
  color: var(--text-color);
  font-size: 1.5rem;
  transition: color var(--transition);
}

.player-info-heading h1 a:hover {
  color: var(--primary-color);
}

.episode-title {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.player-left {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.625rem;
}

.player-left h2 {
  font-size: 1.25rem;
  margin: 0;
}

.player-tabs {
  display: flex;
  list-style: none;
}

.player-link {
  padding: 0.25rem 0.5rem;
  color: var(--text-color);
  transition: color var(--transition);
  font-size: 0.875rem;
  display: flex;
  align-items: center;
}

.player-link.active,
.player-link:hover {
  color: var(--primary-color);
}

.player-content {
  margin-top: 1.25rem;
}

.player-pane {
  display: none;
}

.player-pane.active {
  display: block;
}

.episode-items {
  display: grid;
  gap: 0.625rem;
  list-style: none;
  max-height: 32.5rem;
  overflow-y: auto;
  padding-right: 0.625rem;
  grid-template-columns: repeat(2, 1fr);
}

.episode-item {
  display: block;
  padding: 0.75rem;
  background: var(--episode-bg);
  color: var(--text-color);
  border-radius: 0.25rem;
  text-align: center;
  transition: all var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 0.875rem;
}

.player-info-tag {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.footer {
  background: var(--menu-bg);
  color: var(--text-color);
  padding: 1.25rem 0;
  margin-top: 2.5rem;
  text-align: center;
}

.footer a {
  color: inherit;
  transition: color var(--transition);
}

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

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
.menu-toggle:focus-visible,
.sort-btn:focus-visible,
.expand-btn:focus-visible,
.filter-item:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

@media (max-width: 767.98px) {
  :root {
    --header-height: 3.5rem;
    --content-spacing: 0.5rem;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .nav {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--menu-width);
    background: var(--menu-bg);
    flex-direction: column;
    padding: 0.625rem;
    box-shadow: 4px 0 20px #0000004d;
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    z-index: 1001;
    gap: 0.5rem;
    will-change: transform;
  }
  
  .nav.active {
    transform: translateX(0);
  }
  
  .nav a {
    position: relative;
    padding: 0.75rem 1rem;
    border-radius: 0.25rem;
    transition: all var(--transition);
    color: inherit;
  }
  
  .nav a.active,
  .nav a:hover {
    color: var(--primary-color);
  }
  
  .logo img {
    height: 2.25rem;
    margin-top: 0.25rem;
  }
  
  .search-form {
    width: 60%;
    max-width: 100%;
    min-width: unset;
  }
  
  .search-form input {
    padding: 0.5rem 2.5rem 0.5rem 0.75rem;
  }
  
  .search-form button {
    right: 0.625rem;
  }
  
  .grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .carousel-item {
    aspect-ratio: 16/9;
  }
  
  .detail-wrapper {
    flex-direction: column;
    gap: 0.9375rem;
  }
  
  .poster {
    flex: 0 0 auto;
    width: 100%;
    height: 23.75rem;
    max-width: 18.75rem;
    margin: 0 auto;
  }
  
  .poster img {
    border-radius: 0.75rem;
    box-shadow: 0 4px 20px #00000080;
  }
  
  .detail-content {
    text-align: left;
  }
  
  .detail-header h1 {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 0.625rem;
  }
  
  .detail-tags {
    justify-content: flex-start;
  }
  
  .detail-play-btn {
    text-align: center;
  }
  
  .btn-danger {
    width: auto;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }
  
  .playlist-header {
    flex-wrap: wrap;
  }
  
  .playlist-left {
    flex-wrap: wrap;
    gap: 0.625rem;
  }
  
  .sort-tabs {
    flex-wrap: wrap;
  }
  
  .sort-link {
    font-size: 0.875rem;
    padding: 0.25rem 0.5rem;
  }
  
  .playlist-list {
    grid-template-columns: repeat(2, 1fr);
    max-height: 18.75rem;
  }
  
  .playlist-list a {
    padding: 0.5rem 0.375rem;
    font-size: 0.875rem;
  }
  
  .recommend-section {
    margin: 1.875rem -0.9375rem 0;
    padding: 0 0.9375rem;
  }
  
  .filter-body {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 0.625rem;
    scrollbar-width: none;
    scroll-behavior: smooth;
  }
  
  .filter-body::-webkit-scrollbar {
    display: none;
  }
  
  .page-item {
    display: none;
    padding: 0.375rem 0.75rem;
  }
  
  .page-nav .page-item:first-child,
  .page-nav .page-item:nth-child(2),
  .page-nav .page-item:nth-last-child(2),
  .page-nav .page-item:last-child {
    display: block;
  }
  
  .page-item:not(.active):not(:first-child):not(:last-child):not(:nth-last-child(2)) {
    display: none;
  }
  
  .player-card {
    flex-direction: column;
  }
  
  .player-frame {
    flex: 0 0 auto;
    width: 100%;
    max-width: 100%;
    border-radius: var(--card-radius) var(--card-radius) 0 0;
  }
  
  .episode-list {
    flex: 0 0 auto;
    width: 100%;
    max-width: 100%;
    border-radius: 0 0 var(--card-radius) var(--card-radius);
  }
  
  .player-info-heading h1 {
    text-align: left;
    font-size: 1.25rem;
  }
  
  .player-info-tag {
    justify-content: flex-start;
  }
  
  .episode-title {
    flex-wrap: wrap;
    gap: 0.625rem;
  }
  
  .player-left {
    flex-wrap: wrap;
    gap: 0.625rem;
  }
  
  .player-tabs {
    flex-wrap: wrap;
  }
  
  .sort-btn {
    width: auto;
    margin-left: auto;
  }
  
  .episode-items {
    max-height: 10.625rem;
  }
  
  .episode-item {
    padding: 0.5rem;
    font-size: 0.875rem;
  }
  
  .ad-banner img {
    max-height: none;
    min-height: 80px;
    width: 100%;
  }
  
  .ad-banner {
    padding: 0.5rem 1rem;
  }
}

@media (min-width: 768px) and (max-width: 1199.98px) {
  body {
    font-size: 0.9375rem;
  }
  .grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .carousel-item {
    aspect-ratio: 3/1;
  }
  .nav {
    gap: 1.5625rem;
  }
  .search-form {
    width: 30%;
  }
  .playlist-list {
    grid-template-columns: repeat(4, 1fr);
  }
  .playlist-list a {
    padding: 0.625rem;
    font-size: 0.875rem;
  }
  .episode-items {
    max-height: 20.625rem;
  }
  .episode-item {
    padding: 0.625rem;
    font-size: 0.875rem;
  }
  .ad-banner img {
    max-height: 100px;
  }
  .ad-banner {
    padding: 0.375rem 1.25rem;
  }
}

@media (min-width: 1200px) {
  body {
    font-size: 1rem;
  }
  .grid {
    grid-template-columns: repeat(6, 1fr);
  }
  .carousel-item {
    aspect-ratio: 3/1;
  }
  .nav {
    gap: 2.5rem;
  }
  .search-form {
    width: 25%;
  }
  .playlist-list {
    grid-template-columns: repeat(6, 1fr);
  }
  .playlist-list a {
    padding: 0.75rem;
    font-size: 1rem;
  }
  .ad-banner {
    padding: 0.75rem 1.25rem;
  }
  .ad-banner img {
    max-height: 120px;
    width: auto;
    object-fit: cover;
  }
}

@media (min-width: 1600px) {
  .ad-banner img {
    max-height: 140px;
  }
}

@media (max-width: 280px) {
  .poster {
    height: 17.5rem;
  }
  .poster img {
    height: 100%;
  }
}

@media print {
  .header,
  .ad-wrapper,
  .carousel-controls,
  .filter,
  .page-nav,
  .detail-play-btn,
  .playlist-section,
  .recommend-section,
  .footer {
    display: none;
  }
  body {
    background: white;
    color: black;
  }
  .detail-wrapper {
    margin-top: 0;
  }
}