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

:root {
  --bg: #0f0f0f;
  --surface: #181818;
  --surf2: #212121;
  --border: #303030;
  --text: #f1f1f1;
  --text2: #aaaaaa;
  --accent: #3ea6ff;
  --radius: 10px;
  --tr: 0.18s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

.hdr {
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 18px;
  height: 56px;
  padding: 0 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.hdr-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.3px;
  white-space: nowrap;
}

.hdr-logo svg {
  width: 28px;
  height: 28px;
}

.breadcrumb {
  display: flex;
  flex: 1;
  align-items: center;
  gap: 2px;
  overflow: hidden;
  font-size: 13.5px;
  color: var(--text2);
}

.breadcrumb a {
  max-width: 160px;
  overflow: hidden;
  padding: 2px 5px;
  color: var(--text2);
  border-radius: 4px;
  text-overflow: ellipsis;
  transition: color var(--tr), background var(--tr);
  white-space: nowrap;
}

.breadcrumb a:hover {
  background: var(--surf2);
  color: var(--text);
}

.breadcrumb .sep {
  flex-shrink: 0;
  color: var(--border);
  font-size: 16px;
}

.breadcrumb .cur {
  overflow: hidden;
  color: var(--text);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.browser-wrap {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.path-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.path-title {
  flex: 1;
  overflow: hidden;
  font-size: 22px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.count-badge {
  padding: 3px 10px;
  background: var(--surf2);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text2);
  font-size: 12px;
  white-space: nowrap;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 14px;
}

.card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform var(--tr), border-color var(--tr), box-shadow var(--tr);
}

.card:hover {
  transform: translateY(-3px);
  border-color: #505050;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.card-thumb {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 16 / 10;
  background: var(--surf2);
  font-size: 52px;
  overflow: hidden;
}

.card-folder .card-thumb {
  background: #1a1a0d;
}

.card-up .card-thumb {
  background: #111;
  font-size: 36px;
}

.play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.35);
  opacity: 0;
  transition: opacity var(--tr);
}

.card:hover .play-overlay {
  opacity: 1;
}

.play-btn-ic {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: rgba(62, 166, 255, 0.9);
  border-radius: 50%;
}

.play-btn-ic svg {
  width: 22px;
  height: 22px;
  margin-left: 3px;
}

.card-info {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px 12px;
}

.card-name {
  display: -webkit-box;
  overflow: hidden;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  word-break: break-all;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 2px;
  color: var(--text2);
  font-size: 11.5px;
}

.notice {
  grid-column: 1 / -1;
  padding: 80px 20px;
  color: var(--text2);
  font-size: 16px;
  text-align: center;
}

.notice .icon {
  margin-bottom: 16px;
  font-size: 52px;
}

.notice strong {
  display: block;
  margin-bottom: 6px;
  color: var(--text);
  font-size: 18px;
}

.player-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  min-height: calc(100vh - 56px);
  max-width: 1600px;
  margin: 0 auto;
}

.player-main {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
  padding: 20px 20px 30px;
}

.video-shell {
  overflow: hidden;
  background: #000;
  border-radius: 10px;
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.7);
}

.plyr {
  --plyr-color-main: #3ea6ff;
  --plyr-video-background: #000;
  --plyr-control-spacing: 14px;
  --plyr-range-fill-background: #3ea6ff;
  --plyr-video-controls-background: linear-gradient(transparent, rgba(0, 0, 0, 0.85));
  width: 100%;
  overflow: hidden;
  border-radius: 10px;
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.7);
}

.plyr__play-large {
  width: 72px !important;
  height: 72px !important;
  background: rgba(62, 166, 255, 0.85) !important;
  border: none !important;
  border-radius: 50% !important;
}

.plyr__captions {
  font-size: clamp(14px, 2.5vw, 22px) !important;
}

.plyr__caption {
  padding: 2px 8px;
  background: rgba(0, 0, 0, 0.7);
  border-radius: 4px;
  line-height: 1.6;
  text-shadow: none !important;
}

.status-banner {
  padding: 10px 12px;
  background: rgba(62, 166, 255, 0.08);
  border: 1px solid rgba(62, 166, 255, 0.22);
  border-radius: 8px;
  color: #bfe4ff;
  font-size: 13px;
}

.status-banner.error {
  background: rgba(216, 78, 78, 0.08);
  border-color: rgba(216, 78, 78, 0.26);
  color: #ffb3b3;
}

.track-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.track-section {
  display: none;
  flex-direction: column;
  gap: 8px;
}

.track-section-title {
  color: var(--text2);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

.track-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.track-btn {
  padding: 5px 12px;
  background: var(--surf2);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text2);
  font-size: 12px;
  cursor: pointer;
  transition: all var(--tr);
  white-space: nowrap;
}

.track-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}

.track-btn.active {
  background: rgba(62, 166, 255, 0.15);
  border-color: var(--accent);
  color: var(--accent);
}

.track-btn.disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.video-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.video-title {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  word-break: break-word;
}

.video-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--text2);
  font-size: 13px;
}

.video-nav {
  display: flex;
  gap: 10px;
}

.nav-btn,
.back-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  background: var(--surf2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  transition: background var(--tr), border-color var(--tr), color var(--tr);
}

.back-btn {
  align-self: flex-start;
  padding: 6px 14px;
  background: transparent;
  color: var(--text2);
}

.nav-btn:hover,
.back-btn:hover {
  background: var(--border);
  border-color: #505050;
  color: var(--text);
}

.nav-btn {
  flex: 1;
}

.nav-btn.disabled {
  opacity: 0.35;
  pointer-events: none;
}

.playlist-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--surface);
  border-left: 1px solid var(--border);
}

.playlist-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--border);
  color: var(--text2);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.playlist-body {
  flex: 1;
  overflow-y: auto;
  scrollbar-color: var(--border) transparent;
  scrollbar-width: thin;
}

.playlist-body::-webkit-scrollbar {
  width: 5px;
}

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

.pl-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: background var(--tr);
}

.pl-item:hover {
  background: var(--surf2);
}

.pl-item.active {
  background: rgba(62, 166, 255, 0.12);
}

.pl-item.active .pl-name,
.pl-item.active .pl-num {
  color: var(--accent);
}

.pl-num {
  flex-shrink: 0;
  width: 22px;
  margin-top: 2px;
  color: var(--text2);
  font-size: 12px;
  text-align: right;
}

.pl-name {
  display: -webkit-box;
  flex: 1;
  overflow: hidden;
  font-size: 13px;
  line-height: 1.4;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  word-break: break-word;
}

.pl-size {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--text2);
  font-size: 11px;
}

.error-card {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.error-title {
  margin-bottom: 10px;
  font-size: 22px;
  font-weight: 700;
}

.error-text {
  margin-bottom: 16px;
  color: var(--text2);
  line-height: 1.7;
  word-break: break-word;
}

@media (max-width: 900px) {
  .player-layout {
    grid-template-columns: 1fr;
  }

  .playlist-panel {
    max-height: 300px;
    border-top: 1px solid var(--border);
    border-left: none;
  }
}