/* =============================================================================
   sitemb — 暗色影院风设计系统
   设计原则：层次分明的表面、克制用色、内容优先、广告区域视觉隔离
   ============================================================================= */

:root {
  /* 表面层级 — 由深到浅，模拟暗室中的光感 */
  --sb-bg: #08080a;
  --sb-bg-subtle: #0e0e11;
  --sb-surface: #141418;
  --sb-surface-raised: #1c1c22;
  --sb-surface-hover: #24242c;

  /* 边框 — 暗色主题用低对比度边框，避免"铁丝网"感 */
  --sb-border: rgba(255, 255, 255, 0.07);
  --sb-border-strong: rgba(255, 255, 255, 0.12);

  /* 文字 — 三级灰度，保证 WCAG AA 对比度 */
  --sb-text: #ececef;
  --sb-text-secondary: #9898a4;
  --sb-text-tertiary: #5c5c68;

  /* 品牌色 — 偏冷的紫罗兰，暗色背景下更柔和 */
  --sb-accent: #8b7cf8;
  --sb-accent-soft: #a89bf9;
  --sb-accent-muted: rgba(139, 124, 248, 0.12);
  --sb-accent-glow: rgba(139, 124, 248, 0.35);

  /* 功能色 */
  --sb-badge-hot: rgba(239, 68, 68, 0.9);
  --sb-badge-duration: rgba(0, 0, 0, 0.75);

  /* 尺寸 */
  --sb-radius: 12px;
  --sb-radius-sm: 8px;
  --sb-radius-xs: 6px;
  --sb-header-h: 64px;
  --sb-container: 1240px;
  --sb-gap: 16px;
  --sb-section-gap: 48px;

  /* 字体 */
  --sb-font: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* 阴影 — 暗色用 glow 比 drop-shadow 更自然 */
  --sb-shadow-card: 0 2px 8px rgba(0, 0, 0, 0.4);
  --sb-shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--sb-border-strong);
}

/* ── 基础重置 ── */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body.sb-body {
  margin: 0;
  font-family: var(--sb-font);
  font-size: 14px;
  line-height: 1.65;
  color: var(--sb-text);
  background: var(--sb-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* 微妙背景纹理，避免纯平死黑 */
body.sb-body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(139, 124, 248, 0.06), transparent),
    var(--sb-bg);
}

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

/* ── 布局容器 ── */
.sb-container {
  width: 100%;
  max-width: var(--sb-container);
  margin: 0 auto;
  padding: 0 20px;
}

@media (max-width: 640px) {
  .sb-container { padding: 0 14px; }
}

.sb-main {
  padding-bottom: 56px;
  min-height: calc(100vh - var(--sb-header-h) - 200px);
}

/* =============================================================================
   顶栏
   ============================================================================= */
.sb-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(8, 8, 10, 0.82);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid var(--sb-border);
}

/* 顶漂广告存在时，给 header 内留空 — 不用 margin-top 破坏 sticky */
.sb-header.has-top-ad {
  padding-top: 72px;
}

.sb-header__inner {
  display: flex;
  align-items: center;
  height: var(--sb-header-h);
  gap: 24px;
}

.sb-logo {
  flex-shrink: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--sb-text);
  background: linear-gradient(135deg, var(--sb-text) 0%, var(--sb-accent-soft) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sb-logo:hover {
  opacity: 0.85;
  -webkit-text-fill-color: unset;
  color: var(--sb-accent-soft);
}

/* 桌面导航 */
.sb-nav {
  display: none;
  align-items: center;
  gap: 2px;
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

@media (min-width: 1024px) {
  .sb-nav { display: flex; }
}

.sb-nav__link {
  padding: 7px 12px;
  border-radius: var(--sb-radius-xs);
  color: var(--sb-text-secondary);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  transition: color 0.15s, background 0.15s;
}

.sb-nav__link:hover,
.sb-nav__link.is-active {
  color: var(--sb-text);
  background: var(--sb-surface);
}

/* 右侧操作区 */
.sb-header__actions {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

/* 桌面内联搜索 */
.sb-header-search {
  display: none;
  align-items: center;
  position: relative;
}

@media (min-width: 1024px) {
  .sb-header-search { display: flex; }
}

.sb-header-search__input {
  width: 200px;
  padding: 8px 12px 8px 36px;
  border: 1px solid var(--sb-border);
  border-radius: 20px;
  background: var(--sb-surface);
  color: var(--sb-text);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s, width 0.25s, box-shadow 0.2s;
}

.sb-header-search__input:focus {
  width: 260px;
  border-color: var(--sb-accent);
  box-shadow: 0 0 0 3px var(--sb-accent-muted);
}

.sb-header-search__input::placeholder { color: var(--sb-text-tertiary); }

.sb-header-search__icon {
  position: absolute;
  left: 12px;
  width: 16px;
  height: 16px;
  color: var(--sb-text-tertiary);
  pointer-events: none;
}

.sb-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: none;
  border-radius: var(--sb-radius-xs);
  background: transparent;
  color: var(--sb-text-secondary);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.sb-icon-btn:hover {
  background: var(--sb-surface);
  color: var(--sb-text);
}

.sb-icon-btn svg { width: 20px; height: 20px; }

/* 移动端：隐藏内联搜索，显示搜索按钮 */
@media (max-width: 1023px) {
  .sb-icon-btn.js-toggle-search { display: flex; }
}

@media (min-width: 1024px) {
  .sb-icon-btn.js-toggle-search { display: none; }
}

/* 移动端菜单 — 桌面隐藏 */
.sb-mobile-menu { position: relative; }

@media (min-width: 1024px) {
  .sb-mobile-menu { display: none; }
}

.sb-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 200px;
  max-height: 70vh;
  overflow-y: auto;
  background: var(--sb-surface-raised);
  border: 1px solid var(--sb-border-strong);
  border-radius: var(--sb-radius);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6);
  z-index: 300;
}

.sb-dropdown.is-open { display: block; }

.sb-dropdown__item {
  display: block;
  padding: 11px 16px;
  color: var(--sb-text-secondary);
  font-size: 14px;
  border-bottom: 1px solid var(--sb-border);
  transition: background 0.12s, color 0.12s;
}

.sb-dropdown__item:last-child { border-bottom: none; }

.sb-dropdown__item:hover {
  background: var(--sb-surface-hover);
  color: var(--sb-text);
}

/* 移动端展开搜索条 */
.sb-search {
  display: none;
  padding: 0 0 14px;
}

.sb-search.is-open { display: block; }

@media (min-width: 1024px) {
  .sb-search { display: none !important; }
}

.sb-search__form {
  display: flex;
  gap: 8px;
}

.sb-search__input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius-sm);
  background: var(--sb-surface);
  color: var(--sb-text);
  font-size: 14px;
  outline: none;
}

.sb-search__input:focus {
  border-color: var(--sb-accent);
  box-shadow: 0 0 0 3px var(--sb-accent-muted);
}

.sb-search__input::placeholder { color: var(--sb-text-tertiary); }

/* ── 按钮 ── */
.sb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 22px;
  border: none;
  border-radius: var(--sb-radius-sm);
  background: var(--sb-accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
}

.sb-btn:hover {
  background: var(--sb-accent-soft);
  color: #fff;
  box-shadow: 0 4px 16px var(--sb-accent-glow);
}

.sb-btn:active { transform: scale(0.98); }

.sb-btn--ghost {
  background: transparent;
  border: 1px solid var(--sb-border-strong);
  color: var(--sb-text-secondary);
  box-shadow: none;
}

.sb-btn--ghost:hover {
  border-color: var(--sb-accent);
  color: var(--sb-accent);
  background: var(--sb-accent-muted);
  box-shadow: none;
}

.sb-btn--lg {
  padding: 12px 28px;
  font-size: 15px;
}

/* =============================================================================
   首页 Hero
   ============================================================================= */
.sb-hero {
  position: relative;
  margin: 0 -20px 36px;
  padding: 0;
  overflow: hidden;
  border-radius: var(--sb-radius);
  border: 1px solid var(--sb-border);
  background: linear-gradient(145deg, rgba(18, 18, 24, 0.98) 0%, rgba(10, 10, 14, 0.99) 100%);
}

@media (max-width: 640px) {
  .sb-hero {
    margin: 0 -14px 28px;
    border-radius: var(--sb-radius-sm);
  }
}

.sb-hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.sb-hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.55;
}

.sb-hero__orb--1 {
  width: 280px;
  height: 280px;
  top: -80px;
  left: -40px;
  background: rgba(139, 124, 248, 0.35);
}

.sb-hero__orb--2 {
  width: 220px;
  height: 220px;
  bottom: -60px;
  right: -20px;
  background: rgba(99, 102, 241, 0.22);
}

.sb-hero__grain {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.sb-hero__inner {
  position: relative;
  padding: 36px 28px 28px;
  text-align: center;
}

@media (max-width: 640px) {
  .sb-hero__inner {
    padding: 24px 16px 20px;
  }
}

.sb-hero__eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sb-accent-soft);
  background: rgba(139, 124, 248, 0.12);
  border: 1px solid rgba(139, 124, 248, 0.25);
  border-radius: 999px;
}

.sb-hero__title {
  margin: 0 0 8px;
  font-size: clamp(22px, 5vw, 32px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.25;
  color: var(--sb-text);
}

.sb-hero__desc {
  margin: 0 auto 22px;
  max-width: 420px;
  font-size: 14px;
  color: var(--sb-text-secondary);
  line-height: 1.55;
}

.sb-hero__search {
  max-width: 520px;
  margin: 0 auto 20px;
}

.sb-hero__search-box {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 5px 5px 5px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.sb-hero__search-box:focus-within {
  border-color: rgba(139, 124, 248, 0.5);
  box-shadow: 0 0 0 3px rgba(139, 124, 248, 0.12);
}

.sb-hero__search-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--sb-text-tertiary);
}

.sb-hero__search-input {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  border: none;
  background: transparent;
  font-size: 15px;
  color: var(--sb-text);
  outline: none;
}

.sb-hero__search-input::placeholder {
  color: var(--sb-text-tertiary);
}

.sb-hero__search-btn {
  flex-shrink: 0;
  padding: 10px 22px;
  border: none;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--sb-accent) 0%, #6366f1 100%);
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
}

.sb-hero__search-btn:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

.sb-hero__cats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  max-width: 560px;
  margin: 0 auto;
}

.sb-hero__cat {
  display: inline-block;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 500;
  color: var(--sb-text-secondary);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.sb-hero__cat:hover {
  color: var(--sb-text);
  border-color: rgba(139, 124, 248, 0.35);
  background: rgba(139, 124, 248, 0.1);
}

.sb-hero__cat--accent {
  color: var(--sb-accent-soft);
  border-color: rgba(139, 124, 248, 0.3);
  background: rgba(139, 124, 248, 0.08);
}

/* =============================================================================
   内容区块
   ============================================================================= */
.sb-section {
  margin-bottom: var(--sb-section-gap);
}

.sb-section__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  gap: 12px;
}

.sb-section__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--sb-text);
  letter-spacing: -0.01em;
}

/* 区块标题左侧强调条 — 建立视觉节奏 */
.sb-section__title::before {
  content: "";
  flex-shrink: 0;
  width: 3px;
  height: 18px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--sb-accent) 0%, rgba(139, 124, 248, 0.4) 100%);
}

.sb-section__more {
  flex-shrink: 0;
  color: var(--sb-text-tertiary);
  font-size: 13px;
  transition: color 0.15s;
}

.sb-section__more:hover { color: var(--sb-accent); }

/* =============================================================================
   面包屑导航（SEO）
   ============================================================================= */
.sb-breadcrumb {
  margin: 16px 0 8px;
  font-size: 13px;
}

.sb-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--sb-text-tertiary);
}

.sb-breadcrumb__item:not(:last-child)::after {
  content: '/';
  margin-left: 6px;
  color: var(--sb-text-muted);
  pointer-events: none;
}

.sb-breadcrumb__item a {
  color: var(--sb-text-secondary);
  text-decoration: none;
}

.sb-breadcrumb__item a:hover {
  color: var(--sb-accent-soft);
}

.sb-breadcrumb__item--current,
.sb-breadcrumb__item:last-child span[itemprop="name"] {
  color: var(--sb-text);
}

/* 内页标题 */
.sb-page-header {
  margin: 28px 0 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--sb-border);
}

.sb-page-title {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--sb-text);
  line-height: 1.3;
}

.sb-page-subtitle {
  margin: 6px 0 0;
  font-size: 13px;
  color: var(--sb-text-tertiary);
}

.sb-page-header--rank {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

/* 排行榜 Tab */
.sb-rank-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 24px;
  padding: 6px;
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
}

.sb-rank-tabs__item {
  flex: 1 1 auto;
  min-width: fit-content;
  padding: 10px 16px;
  border-radius: var(--sb-radius-xs);
  font-size: 13px;
  font-weight: 500;
  color: var(--sb-text-secondary);
  text-align: center;
  transition: background 0.15s, color 0.15s;
}

.sb-rank-tabs__item:hover {
  color: var(--sb-text);
  background: var(--sb-surface-raised);
}

.sb-rank-tabs__item.is-active {
  color: #fff;
  background: var(--sb-accent);
  box-shadow: 0 4px 14px var(--sb-accent-glow);
}

/* 首页/播放页 排行榜快捷入口 */
.sb-rank-shortcuts {
  margin-bottom: var(--sb-section-gap);
  padding: 18px 20px;
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
}

.sb-rank-shortcuts__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.sb-rank-shortcuts__title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--sb-text);
}

.sb-rank-shortcuts__more {
  flex-shrink: 0;
  font-size: 13px;
  color: var(--sb-accent);
  white-space: nowrap;
}

.sb-rank-shortcuts__more:hover { color: var(--sb-accent-soft); }

.sb-rank-shortcuts__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sb-rank-shortcuts__tab {
  flex: 1 1 auto;
  min-width: fit-content;
  padding: 9px 14px;
  border-radius: var(--sb-radius-xs);
  font-size: 13px;
  font-weight: 500;
  color: var(--sb-text-secondary);
  text-align: center;
  background: var(--sb-surface-raised);
  border: 1px solid var(--sb-border);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.sb-rank-shortcuts__tab:hover {
  color: var(--sb-text);
  border-color: var(--sb-accent);
}

.sb-rank-shortcuts__tab--accent {
  color: #fff;
  background: var(--sb-accent);
  border-color: var(--sb-accent);
  box-shadow: 0 4px 14px var(--sb-accent-glow);
}

.sb-rank-shortcuts__tab--accent:hover {
  color: #fff;
  background: var(--sb-accent-soft);
  border-color: var(--sb-accent-soft);
}

@media (max-width: 640px) {
  .sb-rank-shortcuts {
    padding: 14px 16px;
  }

  .sb-rank-shortcuts__tab {
    flex: 1 1 calc(50% - 4px);
    padding: 10px 8px;
    font-size: 12px;
  }
}

@media (max-width: 640px) {
  .sb-rank-tabs__item {
    flex: 1 1 calc(50% - 4px);
    padding: 9px 10px;
    font-size: 12px;
  }
}

.sb-grid--rank {
  gap: 16px;
}

.sb-card--rank {
  position: relative;
}

.sb-card__rank {
  position: absolute;
  top: 8px;
  left: 8px;
  z-index: 3;
  min-width: 28px;
  height: 28px;
  padding: 0 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  line-height: 1;
}

.sb-card__rank--top {
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  box-shadow: 0 2px 10px rgba(239, 68, 68, 0.4);
}

/* =============================================================================
   视频网格
   ============================================================================= */
.sb-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sb-gap);
}

@media (min-width: 640px) {
  .sb-grid { gap: 18px; }
}

@media (min-width: 768px) {
  .sb-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1100px) {
  .sb-grid { grid-template-columns: repeat(4, 1fr); gap: 20px; }
}

/* =============================================================================
   视频卡片 — 核心 UI 组件
   ============================================================================= */
.sb-card {
  position: relative;
}

.sb-card__link {
  display: block;
  color: inherit;
}

.sb-card__thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--sb-radius);
  background: var(--sb-surface);
  overflow: hidden;
  box-shadow: var(--sb-shadow-card);
  transition: box-shadow 0.25s, transform 0.25s;
}

.sb-card:hover .sb-card__thumb {
  box-shadow: var(--sb-shadow-hover);
  transform: translateY(-2px);
}

.sb-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--sb-surface);
  transition: transform 0.4s ease, opacity 0.3s;
}

.sb-card:hover .sb-card__thumb img {
  transform: scale(1.05);
}

/* 悬停播放遮罩 */
.sb-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  transition: opacity 0.25s;
}

.sb-card:hover .sb-card__overlay { opacity: 1; }

.sb-card__play {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--sb-accent);
  color: #fff;
  box-shadow: 0 4px 20px var(--sb-accent-glow);
  transform: scale(0.85);
  transition: transform 0.2s;
}

.sb-card:hover .sb-card__play { transform: scale(1); }

.sb-card__play svg {
  width: 18px;
  height: 18px;
  margin-left: 2px;
}

.sb-card__badge {
  position: absolute;
  bottom: 8px;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  line-height: 1.5;
  z-index: 2;
  backdrop-filter: blur(4px);
}

.sb-card__badge--left {
  left: 8px;
  background: var(--sb-badge-hot);
}

.sb-card__badge--right {
  right: 8px;
  background: var(--sb-badge-duration);
}

.sb-card__badge--hits {
  top: 8px;
  right: 8px;
  bottom: auto;
  left: auto;
  background: rgba(124, 108, 240, 0.85);
}

.sb-card__title {
  margin: 10px 0 0;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.45;
  color: var(--sb-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.15s;
}

.sb-card:hover .sb-card__title { color: var(--sb-text); }

/* 广告卡片标记 */
.sb-card--ad .sb-card__thumb::after {
  content: "AD";
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 10px;
  font-weight: 700;
  color: var(--sb-text-tertiary);
  background: rgba(0, 0, 0, 0.6);
  z-index: 2;
}

/* 侧栏横向卡片 */
.sb-card-h {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  padding: 6px;
  border-radius: var(--sb-radius-sm);
  transition: background 0.15s;
}

.sb-card-h:hover { background: var(--sb-surface); }

.sb-card-h__thumb {
  flex: 0 0 108px;
  aspect-ratio: 16 / 9;
  border-radius: var(--sb-radius-xs);
  overflow: hidden;
  background: var(--sb-surface);
}

.sb-card-h__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sb-card-h__body {
  flex: 1;
  display: flex;
  align-items: center;
  min-width: 0;
}

.sb-card-h__title {
  font-size: 13px;
  line-height: 1.45;
  color: var(--sb-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.15s;
}

.sb-card-h:hover .sb-card-h__title { color: var(--sb-accent-soft); }

/* =============================================================================
   工具栏 & 筛选
   ============================================================================= */
.sb-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding: 12px 16px;
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
  flex-wrap: wrap;
  gap: 10px;
}

.sb-toolbar__info {
  color: var(--sb-text-tertiary);
  font-size: 13px;
}

.sb-filter { position: relative; }

.sb-filter__btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--sb-radius-xs);
  background: var(--sb-surface-raised);
  border: 1px solid var(--sb-border);
  color: var(--sb-text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.sb-filter__btn:hover {
  border-color: var(--sb-accent);
  color: var(--sb-text);
}

/* =============================================================================
   分页
   ============================================================================= */
.sb-paging {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-top: 36px;
  flex-wrap: wrap;
}

.sb-paging__btn,
.sb-paging__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  border-radius: var(--sb-radius-xs);
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  color: var(--sb-text-secondary);
  font-size: 13px;
  transition: all 0.15s;
}

.sb-paging__btn:hover:not([href=""]),
.sb-paging__num:hover {
  border-color: var(--sb-accent);
  color: var(--sb-accent);
}

.sb-paging__num.is-current {
  background: var(--sb-accent);
  border-color: var(--sb-accent);
  color: #fff;
  font-weight: 600;
}

.sb-paging__dots {
  color: var(--sb-text-tertiary);
  padding: 0 4px;
  user-select: none;
}

.sb-paging-mobile {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 28px;
}

@media (min-width: 768px) {
  .sb-paging-mobile { display: none; }
}

.sb-paging-desktop {
  display: none;
}

@media (min-width: 768px) {
  .sb-paging-desktop { display: flex; }
}

.sb-paging-mobile .sb-paging__jump {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--sb-text-tertiary);
  font-size: 13px;
}

.sb-paging-mobile input {
  width: 48px;
  padding: 7px;
  text-align: center;
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius-xs);
  background: var(--sb-surface);
  color: var(--sb-text);
  font-size: 13px;
}

/* =============================================================================
   播放页
   ============================================================================= */
.sb-play-layout {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

.sb-play-main { flex: 1; min-width: 0; }

/* 播放页 MacPlayer：16:9 画面 + 底部控制条完整展示 */
#sb-play-page .sb-play-stage {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: calc(9 / 16 * 100% + 54px);
  margin-bottom: 24px;
  background: #000;
  border-radius: var(--sb-radius);
  overflow: visible;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
  z-index: 100;
}

#sb-play-page .sb-play-stage .MacPlayer,
#sb-play-page .sb-play-stage .MacPlayer table,
#sb-play-page .sb-play-stage .MacPlayer tr,
#sb-play-page .sb-play-stage .MacPlayer tbody {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  min-height: 0 !important;
  border-collapse: collapse;
}

#sb-play-page .sb-play-stage #playleft {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  min-height: 0 !important;
  padding: 0;
  margin: 0;
}

#sb-play-page .sb-play-stage .MacTop,
#sb-play-page .sb-play-stage .MacPlayerTit { display: none !important; }

#sb-play-page .sb-play-stage iframe,
#sb-play-page .sb-play-stage #player_if,
#sb-play-page .sb-play-stage video {
  position: absolute;
  top: 0;
  left: 0;
  display: block;
  width: 100% !important;
  height: 100% !important;
  min-height: 0 !important;
  border: none;
  pointer-events: auto;
}

#sb-play-page .sb-play-stage #buffer,
#sb-play-page .sb-play-stage iframe#buffer,
#sb-play-page .sb-play-stage #prestrain {
  display: none !important;
  pointer-events: none;
  visibility: hidden;
}

#sb-play-page .ppap,
#sb-play-page #ppap,
#sb-play-page #ppap .ppap { pointer-events: none !important; }

#sb-play-page .sb-play-title { margin-top: 0; }

.sb-player-stage,
.sb-player-wrap {
  position: relative;
  width: 100%;
  min-height: 280px;
  height: clamp(280px, 56.25vw, 680px);
  background: #000;
  border-radius: var(--sb-radius);
  overflow: visible;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
}

.sb-player-stage .MacPlayer,
.sb-player-wrap .MacPlayer {
  width: 100% !important;
  height: 100% !important;
  min-height: 280px !important;
  background: #000 !important;
}

.sb-player-stage .MacPlayer table,
.sb-player-wrap .MacPlayer table {
  width: 100% !important;
  height: 100% !important;
}

.sb-player-stage #playleft,
.sb-player-wrap #playleft {
  width: 100% !important;
  height: 100% !important;
  min-height: 280px !important;
  vertical-align: top;
}

.sb-player-stage .MacTop,
.sb-player-wrap .MacTop,
.sb-player-stage .MacPlayerTit,
.sb-player-wrap .MacPlayerTit {
  display: none !important;
}

.sb-player-stage iframe,
.sb-player-wrap iframe,
.sb-player-stage #player_if,
.sb-player-wrap #player_if,
.sb-player-stage video,
.sb-player-wrap video {
  display: block;
  width: 100% !important;
  height: 100% !important;
  min-height: 280px !important;
  border: none;
}

.sb-play-title {
  margin: 20px 0 0;
  font-size: clamp(16px, 3vw, 20px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--sb-text);
  line-height: 1.4;
}

.sb-meta-panel {
  margin: 20px 0 0;
  padding: 20px 22px;
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
}

.sb-meta-row {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 4px 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--sb-border);
  font-size: 13px;
}

.sb-meta-row:last-child { border-bottom: none; }

.sb-meta-row__label {
  color: var(--sb-text-tertiary);
  font-weight: 500;
}

.sb-meta-row__value {
  color: var(--sb-text-secondary);
  word-break: break-word;
}

.sb-meta-row__value a {
  color: var(--sb-accent);
  margin-right: 6px;
}

.sb-meta-row__value a:hover { color: var(--sb-accent-soft); }

.sb-meta-row--block {
  grid-template-columns: 1fr;
  gap: 6px;
}

.sb-meta-row--block .sb-meta-row__label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sb-meta-row--block .sb-meta-row__value {
  line-height: 1.7;
  color: var(--sb-text);
}

.sb-play-sidebar {
  flex: 0 0 300px;
  position: sticky;
  top: calc(var(--sb-header-h) + 16px);
  padding: 18px;
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
  max-height: calc(100vh - var(--sb-header-h) - 32px);
  overflow-y: auto;
}

@media (max-width: 1023px) {
  .sb-play-layout { flex-direction: column; }
  .sb-play-sidebar { display: none; }
}

.sb-sidebar-title {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--sb-text);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--sb-border);
}

.sb-sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--sb-border);
}

.sb-sidebar-head .sb-sidebar-title {
  margin: 0;
  padding: 0;
  border: none;
}

.sb-sidebar-more {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--sb-text-tertiary);
  white-space: nowrap;
  transition: color 0.15s;
}

.sb-sidebar-more:hover { color: var(--sb-accent); }

/* 播放页移动端精简模式 */
.sb-play-mobile .sb-header,
.sb-play-mobile .sb-footer,
.sb-play-mobile .sb-gotop,
.sb-play-mobile .sb-play-sidebar,
.sb-play-mobile .sb-meta-panel,
.sb-play-mobile .sb-related { display: none !important; }

.sb-play-mobile .sb-main { padding-bottom: 260px; }

.sb-play-mobile .sb-play-fixed {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: #000;
  height: 240px;
  max-height: 42vh;
}

.sb-play-mobile .sb-play-fixed .sb-player-wrap {
  height: 100%;
  min-height: 0;
  border-radius: 0;
  box-shadow: none;
}

.sb-play-mobile .sb-play-fixed .sb-play-title,
.sb-play-mobile .sb-play-fixed .sb-breadcrumb {
  display: none !important;
}

/* =============================================================================
   详情页
   ============================================================================= */
.sb-detail-hero {
  display: flex;
  gap: 28px;
  margin-bottom: 36px;
}

@media (max-width: 640px) {
  .sb-detail-hero { flex-direction: column; }
}

.sb-detail-poster {
  flex: 0 0 200px;
  border-radius: var(--sb-radius);
  overflow: hidden;
  aspect-ratio: 2 / 3;
  background: var(--sb-surface);
  box-shadow: var(--sb-shadow-card);
}

@media (max-width: 640px) {
  .sb-detail-poster { flex: none; width: 160px; margin: 0 auto; }
}

.sb-detail-poster img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sb-detail-info { flex: 1; min-width: 0; }

.sb-detail-info h1 {
  margin: 0 0 16px;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.sb-detail-actions { margin-top: 24px; }

/* =============================================================================
   演员 & 分类
   ============================================================================= */
.sb-actor-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px 12px;
}

@media (min-width: 640px) { .sb-actor-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1024px) { .sb-actor-grid { grid-template-columns: repeat(6, 1fr); } }

.sb-actor-card { text-align: center; }

.sb-actor-card__avatar {
  width: 72px;
  height: 72px;
  margin: 0 auto 8px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--sb-surface-raised);
  border: 2px solid var(--sb-border);
  transition: border-color 0.2s, transform 0.2s;
}

@media (min-width: 1024px) {
  .sb-actor-card__avatar { width: 88px; height: 88px; }
}

.sb-actor-card:hover .sb-actor-card__avatar {
  border-color: var(--sb-accent);
  transform: scale(1.04);
}

.sb-actor-card__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sb-actor-card__name {
  font-size: 12px;
  color: var(--sb-text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sb-actor-card:hover .sb-actor-card__name { color: var(--sb-accent); }

.sb-cat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

@media (min-width: 768px) { .sb-cat-grid { grid-template-columns: repeat(4, 1fr); } }

.sb-cat-item {
  display: block;
  padding: 18px 20px;
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
}

.sb-cat-item:hover {
  border-color: var(--sb-accent);
  background: var(--sb-surface-raised);
  transform: translateY(-1px);
}

.sb-cat-item__name {
  font-size: 15px;
  font-weight: 600;
  color: var(--sb-text);
  margin-bottom: 4px;
}

.sb-cat-item__count { font-size: 12px; color: var(--sb-text-tertiary); }

/* =============================================================================
   页脚
   ============================================================================= */
.sb-footer {
  margin-top: 56px;
  padding: 40px 0 28px;
  border-top: 1px solid var(--sb-border);
  background: var(--sb-bg-subtle);
}

.sb-footer__inner {
  display: grid;
  gap: 24px;
}

@media (min-width: 768px) {
  .sb-footer__inner {
    grid-template-columns: 1fr 2fr;
    align-items: start;
  }
}

.sb-footer__brand {
  font-size: 18px;
  font-weight: 700;
  color: var(--sb-text);
}

.sb-footer__brand:hover { color: var(--sb-accent); }

.sb-footer__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.sb-footer__tags a {
  font-size: 11px;
  color: var(--sb-text-tertiary);
  padding: 4px 10px;
  background: var(--sb-surface);
  border-radius: 14px;
  border: 1px solid var(--sb-border);
  transition: all 0.15s;
}

.sb-footer__tags a:hover {
  color: var(--sb-accent);
  border-color: rgba(139, 124, 248, 0.4);
  background: var(--sb-accent-muted);
}

.sb-footer__copy {
  grid-column: 1 / -1;
  padding-top: 20px;
  border-top: 1px solid var(--sb-border);
  text-align: center;
  font-size: 12px;
  color: var(--sb-text-tertiary);
}

/* 返回顶部 */
.sb-gotop {
  text-align: center;
  padding: 16px 0 0;
}

.sb-gotop a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  color: var(--sb-text-tertiary);
  transition: all 0.2s;
}

.sb-gotop a:hover {
  border-color: var(--sb-accent);
  color: var(--sb-accent);
  transform: translateY(-2px);
}

/* =============================================================================
   广告区域 — 与暗色主题协调 + 浮动广告定位（原 jquery.css）
   ============================================================================= */

/* 横幅广告容器 */
.uhghogro,
.bba-container2 {
  max-width: var(--sb-container);
  margin: 8px auto !important;
  padding: 0 20px;
}

.uhghogro ul,
.uhghogro li {
  list-style: none;
  margin: 0;
  padding: 0;
}

.uhghogro img {
  border-radius: var(--sb-radius-xs);
}

/* 文字链广告 — 降低饱和度融入暗色 */
.bba-container2 .col-6.adwz {
  background: rgba(245, 158, 11, 0.12) !important;
  border: 1px solid rgba(245, 158, 11, 0.25) !important;
  border-radius: var(--sb-radius-xs) !important;
}

.bba-container2 .text-white {
  color: #fbbf24 !important;
}

/* 小图标推荐区 */
.xiaotubiao-title {
  color: var(--sb-text-secondary) !important;
  font-size: 11px !important;
}

/* 浮动广告 ppap */
#ppap { position: relative; z-index: 9999; }

.ppap {
  position: fixed;
  z-index: 9999;
  cursor: pointer;
  transition: transform 0.25s ease;
}

.ppap:hover { transform: scale(1.08); }

.ppap.zuo1 { top: 20%; left: 1%; }
.ppap.zuo2 { top: 31%; left: 1%; }
.ppap.zuo3 { top: 42%; left: 1%; }
.ppap.zuo4 { top: 53%; left: 1%; }
.ppap.zuo5 { top: 64%; left: 1%; }
.ppap.zuo6 { top: 75%; left: 1%; }
.ppap.you1 { top: 20%; right: 1%; }
.ppap.you2 { top: 31%; right: 1%; }
.ppap.you3 { top: 42%; right: 1%; }
.ppap.you4 { top: 53%; right: 1%; }
.ppap.you5 { top: 64%; right: 1%; }
.ppap.you6 { top: 75%; right: 1%; }
.ppap.xia1 { top: 88%; left: 5%; }
.ppap.xia2 { top: 88%; left: 29%; }
.ppap.xia3 { top: 88%; left: 53%; }
.ppap.xia4 { top: 88%; left: 78%; }
.ppap.shang1 { top: 1%; left: 5%; }
.ppap.shang2 { top: 1%; left: 29%; }
.ppap.shang3 { top: 1%; left: 53%; }
.ppap.shang4 { top: 1%; left: 78%; }

.ppap img {
  width: 60px;
  height: 60px;
  border-radius: var(--sb-radius-sm);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
}

@media (max-width: 768px) {
  .ppap img { width: 50px; height: 50px; }
}

/* 广告区与内容的分隔 */
.sb-ad-slot {
  margin: 10px auto;
  max-width: var(--sb-container);
  overflow: hidden;
}

/* =============================================================================
   通用面板 & 标签云
   ============================================================================= */
.sb-panel {
  padding: 24px;
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
}

.sb-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sb-tag-cloud a {
  padding: 6px 14px;
  background: var(--sb-surface-raised);
  border: 1px solid var(--sb-border);
  border-radius: 16px;
  font-size: 13px;
  color: var(--sb-text-secondary);
  transition: all 0.15s;
}

.sb-tag-cloud a:hover {
  border-color: var(--sb-accent);
  color: var(--sb-accent);
  background: var(--sb-accent-muted);
}

/* 跳转页 */
.sb-jump {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.sb-jump__box {
  text-align: center;
  padding: 40px 32px;
  background: var(--sb-surface);
  border: 1px solid var(--sb-border);
  border-radius: var(--sb-radius);
  max-width: 400px;
  width: 90%;
}

.sb-jump__title { font-size: 17px; font-weight: 600; margin-bottom: 10px; }
.sb-jump__msg { color: var(--sb-text-secondary); margin-bottom: 14px; font-size: 14px; }
.sb-jump__wait { color: var(--sb-accent); font-weight: 700; }

/* =============================================================================
   工具类
   ============================================================================= */
.sb-hidden { display: none !important; }

.sb-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* 焦点可见性 */
:focus-visible {
  outline: 2px solid var(--sb-accent);
  outline-offset: 2px;
}

button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
  outline: none;
}