/* 对标演示：SeeAV / 爱一帆 一类「深色 + 大封面卡片 + 顶部分区导航」 */
html[data-device="pc"] {
  --seeav-content: min(1200px, calc(100vw - 48px));
}

html[data-device="h5"] {
  --seeav-content: calc(100vw - 24px);
}

html[data-device="h5"] .pc-only {
  display: none !important;
}

html[data-device="pc"] .h5-only {
  display: none !important;
}

html[data-device="h5"] .h5-only {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
}

.seeav-view-switch a.active {
  border-color: rgba(52, 211, 153, 0.45);
  color: #ecfdf5;
}

body.theme-seeav {
  background: #050508;
  color: #f3f4f6;
}

body.theme-seeav .page-shell {
  background: #050508;
}

body.theme-seeav .topbar {
  display: none;
}

.seeav-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(5, 5, 8, 0.94);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(12px);
}

.seeav-header-top {
  width: var(--seeav-content, min(1200px, calc(100vw - 48px)));
  margin: 0 auto;
  padding: 10px 0 6px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  font-size: 13px;
  color: #9ca3af;
}

/* 顶部文案条下线，保留主导航即可 */
.seeav-header-top {
  display: none !important;
}

.seeav-header-top a {
  color: #e5e7eb;
}

.seeav-header-main {
  width: var(--seeav-content, min(1200px, calc(100vw - 48px)));
  margin: 0 auto;
  padding: 6px 0 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.seeav-logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-weight: 800;
  letter-spacing: 0.04em;
  font-size: 26px;
  color: #fff;
}

.seeav-logo span {
  font-size: 14px;
  font-weight: 600;
  color: #9ca3af;
  letter-spacing: 0;
}

.seeav-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.seeav-btn {
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: #e5e7eb;
  cursor: pointer;
}

.seeav-btn-primary {
  border-color: rgba(34, 197, 94, 0.45);
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.25), rgba(16, 185, 129, 0.12));
  color: #ecfdf5;
}

.seeav-nav-primary,
.seeav-nav-chips {
  width: var(--seeav-content, min(1200px, calc(100vw - 48px)));
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding-bottom: 10px;
}

.seeav-nav-primary {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 10px;
}

.seeav-nav-primary a {
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 14px;
  color: #d1d5db;
  white-space: nowrap;
}

.seeav-nav-primary a:hover,
.seeav-nav-primary a.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.seeav-nav-chips {
  gap: 8px;
  padding-bottom: 14px;
}

.seeav-chip {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  color: #cbd5e1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.06);
  white-space: nowrap;
}

.seeav-chip:hover {
  border-color: rgba(52, 211, 153, 0.35);
  color: #ecfdf5;
}

.seeav-scroll {
  flex-wrap: nowrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.seeav-scroll::-webkit-scrollbar {
  display: none;
}

.seeav-hero {
  width: var(--seeav-content, min(1200px, calc(100vw - 48px)));
  margin: 14px auto 0;
  padding: 18px 18px 16px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  background:
    radial-gradient(circle at 20% 0%, rgba(34, 197, 94, 0.12), transparent 42%),
    radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.12), transparent 40%),
    linear-gradient(135deg, #0c0f16 0%, #07080c 100%);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.seeav-hero h1 {
  margin: 0 0 8px;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: 0.02em;
}

.seeav-hero p {
  margin: 0;
  color: #9ca3af;
  line-height: 1.6;
  font-size: 13px;
  max-width: 720px;
}

.seeav-search-row {
  margin-top: 14px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.seeav-search-row .search-bar {
  flex: 1;
  min-width: 220px;
  background: rgba(0, 0, 0, 0.35);
  border-color: rgba(255, 255, 255, 0.1);
  padding: 10px 12px;
  border-radius: 14px;
}

.seeav-view-switch {
  width: var(--seeav-content, min(1200px, calc(100vw - 48px)));
  margin: 12px auto 0;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  font-size: 12px;
  color: #6b7280;
}

.seeav-view-switch a {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #d1d5db;
}

.seeav-view-switch a.active {
  border-color: rgba(52, 211, 153, 0.45);
  color: #ecfdf5;
}

.seeav-topic-block {
  margin-top: 28px;
}

.seeav-topic-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.seeav-topic-title {
  font-size: 20px;
  font-weight: 800;
  margin: 0;
}

.seeav-topic-more {
  font-size: 13px;
  color: #9ca3af;
}

.seeav-topic-more:hover {
  color: #e5e7eb;
}

body.theme-seeav .content-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

html[data-device="h5"] body.theme-seeav .content-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

body.theme-seeav .page-content {
  width: var(--seeav-content, min(1200px, calc(100vw - 48px)));
}

body.theme-seeav .search-shell {
  width: var(--seeav-content, min(1200px, calc(100vw - 48px)));
}

body.theme-seeav .footer {
  width: var(--seeav-content, min(1200px, calc(100vw - 48px)));
}

/* 播放页：视频区域 */
.player-video-wrap {
  position: relative;
  z-index: 1;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #000;
}

.player-video-wrap video {
  width: 100%;
  height: auto;
  display: block;
  vertical-align: middle;
  max-height: min(72vh, 820px);
  background: #000;
}

.player-control-bar {
  position: relative;
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
  align-items: center;
}

.play-meta-wrap,
.player-toolbar,
.player-wrap .hero-actions {
  position: relative;
  z-index: 3;
}

.player-control-bar button,
.player-control-bar a {
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 13px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.06);
  color: #e5e7eb;
  cursor: pointer;
  text-decoration: none;
}

.player-control-bar button:hover,
.player-control-bar a:hover {
  border-color: rgba(52, 211, 153, 0.35);
}

.player-hint {
  font-size: 12px;
  color: #6b7280;
  margin-top: 8px;
  line-height: 1.6;
}

.topics-index-grid,
.studios-index-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.topic-card,
.studio-card {
  display: block;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.topic-card:hover,
.studio-card:hover {
  border-color: rgba(52, 211, 153, 0.35);
  transform: translateY(-2px);
}

.topic-card-cover {
  aspect-ratio: 16 / 9;
  border-radius: 14px;
  margin-bottom: 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.topic-card-title,
.studio-card-title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
}

.topic-card-desc,
.studio-card-desc {
  margin: 0;
  font-size: 13px;
  color: #9ca3af;
  line-height: 1.6;
}

.topic-card-meta,
.studio-card-meta {
  display: inline-block;
  margin-top: 10px;
  font-size: 12px;
  color: #6ee7b7;
}

.clips-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 18px;
}

.clip-cell video {
  width: 100%;
  border-radius: 14px;
  background: #000;
  max-height: min(52vh, 420px);
}

.clip-meta {
  margin-top: 10px;
  font-size: 13px;
  color: #9ca3af;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.clip-meta .link-inline {
  font-size: 13px;
}

html[data-device="h5"] .topics-index-grid,
html[data-device="h5"] .studios-index-grid,
html[data-device="h5"] .clips-grid {
  grid-template-columns: 1fr;
}

@media (max-width: 820px) {
  .seeav-header-main {
    flex-wrap: wrap;
  }

  .seeav-header-actions .auth-only {
    display: none !important;
  }

  .seeav-logo {
    font-size: 22px;
  }

  .seeav-hero {
    padding: 18px 16px;
  }
}