:root {
  --bg: #0f1115;
  --bg-2: #181b22;
  --bg-3: #232733;
  --bg-card: #1c2029;
  --border: #2d3240;
  --text: #e8eaed;
  --text-dim: #9aa0ac;
  --primary: #4f8cff;
  --primary-hover: #6a9eff;
  --accent: #ff6b6b;
  --success: #34d399;
  --radius: 10px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* 顶部导航 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 17, 21, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.navbar .logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  white-space: nowrap;
}
.navbar .nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
}
.navbar .nav-links a {
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--text-dim);
  font-weight: 500;
  transition: all 0.15s;
}
.navbar .nav-links a:hover { color: var(--text); background: var(--bg-3); }
.navbar .nav-links a.active { color: var(--primary); background: rgba(79, 140, 255, 0.12); }

.navbar .search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 4px 4px 14px;
  width: 320px;
  max-width: 40vw;
}
.navbar .search-box input {
  background: transparent;
  border: none;
  color: var(--text);
  outline: none;
  flex: 1;
  font-size: 13px;
  min-width: 0;
}
.navbar .search-box button {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 16px;
  padding: 6px 14px;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
}
.navbar .search-box button:hover { background: var(--primary-hover); }

/* 通用容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 80px;
}

.section-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-title::before {
  content: "";
  width: 4px;
  height: 18px;
  background: var(--primary);
  border-radius: 2px;
}

/* 视频卡片网格 */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}
.video-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  border: 1px solid var(--border);
}
.video-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}
.video-card .thumb {
  position: relative;
  aspect-ratio: 3 / 4;
  background: var(--bg-3);
  overflow: hidden;
}
.video-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.video-card .thumb .remark {
  position: absolute;
  right: 6px;
  bottom: 6px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 11px;
  max-width: calc(100% - 12px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.video-card .info {
  padding: 8px 10px;
}
.video-card .info .name {
  font-size: 13px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}
.video-card .info .site {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
}

/* 空状态 */
.empty {
  text-align: center;
  color: var(--text-dim);
  padding: 60px 20px;
}
.empty .icon { font-size: 48px; margin-bottom: 12px; opacity: 0.4; }

/* 分类标签 */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.tab {
  padding: 6px 14px;
  border-radius: 16px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}
.tab:hover { color: var(--text); border-color: var(--primary); }
.tab.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* 详情页 */
.detail-header {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
}
.detail-header .poster {
  width: 200px;
  flex-shrink: 0;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-3);
}
.detail-header .poster img { width: 100%; height: 100%; object-fit: cover; }
.detail-header .meta { flex: 1; min-width: 0; }
.detail-header .meta h1 {
  font-size: 24px;
  margin-bottom: 8px;
}
.detail-header .meta .row {
  color: var(--text-dim);
  margin: 4px 0;
  font-size: 13px;
}
.detail-header .meta .row span { color: var(--text); }

/* 播放线路标签 */
.play-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

/* 集数列表 */
.episodes {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 8px;
  margin-bottom: 32px;
}
.ep {
  padding: 8px 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  text-align: center;
  cursor: pointer;
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: all 0.15s;
}
.ep:hover { border-color: var(--primary); color: var(--primary); }
.ep.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 播放器 */
.player-wrap {
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 32px;
  aspect-ratio: 16 / 9;
  position: relative;
}
.player-wrap video { width: 100%; height: 100%; display: block; background: #000; }
.player-wrap .player-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 14px;
}

/* 源管理表单 */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.card h3 { margin-bottom: 14px; font-size: 15px; }

.form-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
}
.form-row label { color: var(--text-dim); font-size: 13px; }
.form-row input, .form-row textarea, .form-row select {
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 13px;
  font-family: inherit;
  outline: none;
  width: 100%;
}
.form-row input:focus, .form-row textarea:focus { border-color: var(--primary); }
.form-row textarea { min-height: 80px; resize: vertical; }

.btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 18px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s;
  font-family: inherit;
}
.btn:hover { background: var(--primary-hover); }
.btn.secondary {
  background: var(--bg-3);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn.secondary:hover { background: var(--border); }
.btn.danger { background: var(--accent); }
.btn.danger:hover { background: #ff5252; }
.btn.small { padding: 5px 12px; font-size: 12px; }
.btn-row { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }

/* 源列表 */
.source-list { display: flex; flex-direction: column; gap: 8px; }
.source-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
}
.source-row .src-name { font-weight: 600; min-width: 120px; }
.source-row .src-key { color: var(--text-dim); font-size: 12px; }
.source-row .src-api {
  flex: 1;
  color: var(--text-dim);
  font-size: 12px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.source-row .src-badge {
  background: var(--bg-3);
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  color: var(--text-dim);
}
.source-row .src-badge.on { background: rgba(52, 211, 153, 0.15); color: var(--success); }
.source-row .actions { display: flex; gap: 6px; }

/* 开关 */
.switch {
  position: relative;
  width: 38px;
  height: 22px;
  background: var(--bg-3);
  border-radius: 11px;
  cursor: pointer;
  transition: background 0.2s;
  flex-shrink: 0;
}
.switch.on { background: var(--success); }
.switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
}
.switch.on::after { transform: translateX(16px); }

/* Toast */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-3);
  color: var(--text);
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  z-index: 1000;
  font-size: 13px;
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-4px); }
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--accent); }

/* 加载 */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-dim);
}
.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--bg-3);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 10px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.pagination button {
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
.pagination button:hover:not(:disabled) { border-color: var(--primary); }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination button.active { background: var(--primary); border-color: var(--primary); }

@media (max-width: 768px) {
  .navbar { padding: 0 12px; gap: 10px; height: 50px; }
  .navbar .search-box { width: auto; flex: 1; max-width: none; }
  .navbar .nav-links { display: none; }
  .container { padding: 16px 12px 60px; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 10px; }
  .detail-header { flex-direction: column; }
  .detail-header .poster { width: 140px; }
  .form-row { grid-template-columns: 1fr; gap: 4px; }
  .form-row label { margin-bottom: 2px; }
}