* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: #111827;
  background: linear-gradient(135deg, #eff6ff 0%, #ffffff 48%, #ecfeff 100%);
}

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

img {
  display: block;
  max-width: 100%;
}

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  position: relative;
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  color: #ffffff;
  border-radius: 999px;
  background: linear-gradient(135deg, #2563eb, #22d3ee);
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.38);
}

.brand-text strong {
  display: block;
  font-size: 24px;
  line-height: 1.1;
  letter-spacing: -0.03em;
  background: linear-gradient(90deg, #2563eb, #06b6d4);
  -webkit-background-clip: text;
  color: transparent;
}

.brand-text small {
  color: #64748b;
  font-size: 12px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 600;
  color: #374151;
  transition: color 0.25s ease;
}

.nav-link:hover,
.nav-link.is-active {
  color: #2563eb;
}

.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -10px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, #2563eb, #06b6d4);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 12px;
  background: #f1f5f9;
  color: #0f172a;
  font-size: 22px;
}

.hero {
  position: relative;
  height: 620px;
  overflow: hidden;
  background: #0f172a;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.7s ease, visibility 0.7s ease;
}

.hero-slide.is-active {
  opacity: 1;
  visibility: visible;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
}

.hero-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.88), rgba(30, 64, 175, 0.68), rgba(8, 47, 73, 0.16));
}

.hero-content {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}

.hero-copy {
  max-width: 680px;
  color: #ffffff;
}

.hero-label {
  display: inline-flex;
  padding: 8px 16px;
  margin-bottom: 18px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.32);
  backdrop-filter: blur(12px);
  font-size: 13px;
  font-weight: 700;
}

.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.hero p {
  max-width: 620px;
  margin: 0 0 24px;
  color: #e5e7eb;
  font-size: 20px;
  line-height: 1.75;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.hero-tags span {
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  color: #dbeafe;
  font-size: 13px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-dots {
  position: absolute;
  left: 50%;
  bottom: 32px;
  z-index: 6;
  display: flex;
  gap: 10px;
  transform: translateX(-50%);
}

.hero-dot {
  width: 12px;
  height: 12px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.42);
  cursor: pointer;
  transition: width 0.25s ease, background 0.25s ease;
}

.hero-dot.is-active {
  width: 36px;
  background: #ffffff;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  border-radius: 999px;
  border: 0;
  font-weight: 700;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #ffffff;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  box-shadow: 0 18px 30px rgba(37, 99, 235, 0.28);
}

.btn-glass {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(12px);
}

.btn-light {
  color: #2563eb;
  background: #ffffff;
  box-shadow: 0 18px 30px rgba(255, 255, 255, 0.24);
}

.btn.full {
  width: 100%;
  margin-top: 18px;
}

.featured-strip {
  position: relative;
  z-index: 8;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: -78px;
}

.content-section {
  padding-top: 70px;
  padding-bottom: 70px;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section-kicker {
  display: block;
  margin-bottom: 8px;
  color: #2563eb;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.section-heading h2 {
  margin: 0;
  color: #111827;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.04em;
}

.section-more {
  color: #2563eb;
  font-weight: 700;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
}

.video-card,
.video-list-card,
.rank-card,
.text-card,
.sticky-card {
  background: #ffffff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: 18px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.video-card {
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 58px rgba(15, 23, 42, 0.14);
}

.video-card-cover {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, #1e3a8a, #0e7490);
}

.video-card-featured .video-card-cover {
  height: 260px;
  aspect-ratio: auto;
}

.video-card-cover img,
.video-list-cover img,
.rank-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.video-card:hover img,
.video-list-card:hover img,
.rank-card:hover img {
  transform: scale(1.08);
}

.play-badge {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #ffffff;
  font-size: 34px;
  background: rgba(2, 6, 23, 0.18);
  opacity: 0;
  transition: opacity 0.25s ease, background 0.25s ease;
}

.play-badge.small {
  font-size: 22px;
}

.video-card:hover .play-badge,
.video-list-card:hover .play-badge,
.rank-card:hover .play-badge {
  opacity: 1;
  background: rgba(2, 6, 23, 0.36);
}

.card-year {
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 4px 9px;
  border-radius: 999px;
  color: #ffffff;
  background: rgba(2, 6, 23, 0.78);
  font-size: 12px;
  font-weight: 700;
}

.video-card-body,
.video-list-body,
.rank-info {
  padding: 18px;
}

.chip,
.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.chip {
  padding: 6px 10px;
}

.chip-blue {
  color: #1d4ed8;
  background: #dbeafe;
}

.video-card h3,
.video-list-card h3,
.rank-card h2 {
  margin: 12px 0 9px;
  color: #111827;
  line-height: 1.35;
}

.video-card h3 {
  font-size: 18px;
}

.video-card p,
.video-list-card p,
.rank-card p {
  display: -webkit-box;
  margin: 0 0 14px;
  color: #64748b;
  line-height: 1.65;
  overflow: hidden;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: #64748b;
  font-size: 13px;
}

.stats-band {
  padding: 60px 0;
  color: #ffffff;
  background: linear-gradient(90deg, #2563eb, #06b6d4);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  text-align: center;
}

.stats-grid div {
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
}

.stats-grid strong {
  display: block;
  margin-bottom: 8px;
  font-size: 42px;
}

.soft-section {
  background: #f8fafc;
}

.video-list {
  display: grid;
  gap: 18px;
}

.video-list-card {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 0;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.video-list-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 42px rgba(15, 23, 42, 0.12);
}

.video-list-cover {
  position: relative;
  display: block;
  min-height: 138px;
  overflow: hidden;
  background: linear-gradient(135deg, #1e3a8a, #0e7490);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.category-tile {
  min-height: 132px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: 22px;
  color: #ffffff;
  background: linear-gradient(135deg, #1d4ed8, #06b6d4);
  box-shadow: 0 20px 40px rgba(37, 99, 235, 0.24);
  transition: transform 0.25s ease;
}

.category-tile:hover {
  transform: translateY(-5px);
}

.category-tile span {
  font-size: 18px;
  font-weight: 800;
}

.category-tile strong {
  font-size: 34px;
}

.cta-panel {
  position: relative;
  overflow: hidden;
  padding: 58px 32px;
  text-align: center;
  color: #ffffff;
  border-radius: 32px;
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.28), transparent 30%), linear-gradient(135deg, #2563eb, #06b6d4, #1d4ed8);
  box-shadow: 0 26px 60px rgba(37, 99, 235, 0.28);
}

.cta-panel h2 {
  margin: 0 0 12px;
  font-size: 40px;
}

.cta-panel p {
  margin: 0 auto 26px;
  max-width: 680px;
  color: #dbeafe;
  font-size: 18px;
}

.page-hero,
.detail-hero {
  padding: 72px 0;
  color: #ffffff;
  background: linear-gradient(135deg, #1e3a8a, #2563eb 56%, #06b6d4);
}

.page-hero h1 {
  margin: 12px 0 12px;
  font-size: clamp(36px, 6vw, 62px);
  letter-spacing: -0.05em;
}

.page-hero p {
  max-width: 760px;
  margin: 0;
  color: #dbeafe;
  font-size: 18px;
  line-height: 1.8;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: #dbeafe;
  font-size: 14px;
}

.breadcrumb a:hover {
  color: #ffffff;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  color: #1e3a8a;
  background: #dbeafe;
  font-weight: 800;
}

.filter-chip span {
  color: #2563eb;
  font-size: 12px;
}

.filter-chip.is-active {
  color: #ffffff;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
}

.filter-chip.is-active span {
  color: #ffffff;
}

.rank-list {
  display: grid;
  gap: 18px;
}

.rank-card {
  position: relative;
  display: grid;
  grid-template-columns: 220px 72px minmax(0, 1fr);
  align-items: stretch;
  overflow: hidden;
}

.rank-cover {
  display: block;
  min-height: 140px;
  overflow: hidden;
  background: linear-gradient(135deg, #1e3a8a, #0e7490);
}

.rank-number {
  display: grid;
  place-items: center;
  color: #2563eb;
  font-size: 30px;
  font-weight: 900;
}

.search-box {
  margin-top: 26px;
  max-width: 700px;
}

.search-box input {
  width: 100%;
  min-height: 58px;
  padding: 0 22px;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 999px;
  outline: none;
  color: #0f172a;
  font-size: 16px;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.16);
}

.search-status {
  margin-bottom: 22px;
  color: #475569;
  font-weight: 700;
}

.detail-hero {
  padding-bottom: 92px;
}

.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(320px, 0.8fr);
  gap: 28px;
  margin-top: 24px;
}

.player-shell {
  position: relative;
  overflow: hidden;
  border-radius: 22px;
  background: #000000;
  box-shadow: 0 30px 70px rgba(2, 6, 23, 0.38);
}

.movie-player {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000000;
}

.player-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border: 0;
  color: #ffffff;
  background: rgba(0, 0, 0, 0.26);
  cursor: pointer;
  transition: background 0.25s ease, opacity 0.25s ease;
}

.player-overlay span {
  width: 86px;
  height: 86px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  box-shadow: 0 24px 54px rgba(37, 99, 235, 0.45);
  font-size: 38px;
}

.player-overlay:hover {
  background: rgba(0, 0, 0, 0.38);
}

.player-overlay.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.detail-side {
  overflow: hidden;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(14px);
}

.detail-side img {
  width: 100%;
  height: 230px;
  object-fit: cover;
}

.detail-side-content {
  padding: 22px;
}

.detail-side h1 {
  margin: 14px 0 12px;
  font-size: 32px;
  line-height: 1.15;
}

.detail-side p {
  margin: 0 0 18px;
  color: #dbeafe;
  line-height: 1.75;
}

.meta-stack {
  display: grid;
  gap: 8px;
  color: #e0f2fe;
  font-size: 14px;
}

.detail-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 28px;
  margin-top: -58px;
  padding-bottom: 82px;
}

.detail-main {
  display: grid;
  gap: 24px;
}

.text-card,
.sticky-card {
  padding: 28px;
}

.text-card h2,
.sticky-card h2 {
  margin: 0 0 14px;
  font-size: 24px;
  letter-spacing: -0.03em;
}

.text-card p {
  margin: 0 0 16px;
  color: #334155;
  line-height: 1.9;
  font-size: 16px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.tag {
  padding: 8px 11px;
  color: #334155;
  background: #f1f5f9;
}

.detail-aside {
  min-width: 0;
}

.sticky-card {
  position: sticky;
  top: 94px;
}

.compact-list .video-list-card {
  grid-template-columns: 118px minmax(0, 1fr);
  box-shadow: none;
  border-radius: 14px;
}

.compact-list .video-list-cover {
  min-height: 82px;
}

.compact-list .video-list-body {
  padding: 10px;
}

.compact-list h3 {
  margin: 6px 0;
  font-size: 14px;
}

.compact-list p,
.compact-list .meta-row,
.compact-list .chip {
  display: none;
}

.related-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.prose-section {
  padding: 72px 0;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.site-footer {
  color: #ffffff;
  background: linear-gradient(135deg, #020617, #1e3a8a 56%, #020617);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 32px;
  padding: 54px 0 38px;
}

.site-footer h2,
.site-footer h3 {
  margin: 0 0 14px;
}

.site-footer h2 {
  background: linear-gradient(90deg, #93c5fd, #67e8f9);
  -webkit-background-clip: text;
  color: transparent;
}

.site-footer p,
.site-footer a,
.footer-bottom {
  color: #cbd5e1;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 9px;
}

.site-footer a:hover {
  color: #93c5fd;
}

.footer-bottom {
  padding: 20px 0;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

[hidden] {
  display: none !important;
}

@media (max-width: 1024px) {
  .video-grid,
  .category-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .detail-grid,
  .detail-content,
  .footer-grid,
  .support-grid {
    grid-template-columns: 1fr;
  }

  .sticky-card {
    position: static;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 22px, 1180px);
  }

  .nav {
    flex-wrap: wrap;
    min-height: 66px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 0 4px;
    border-top: 1px solid #e2e8f0;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-link {
    padding: 12px 4px;
  }

  .nav-link.is-active::after {
    display: none;
  }

  .hero {
    height: 560px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero p {
    font-size: 17px;
  }

  .featured-strip,
  .video-grid,
  .category-grid,
  .stats-grid,
  .related-grid {
    grid-template-columns: 1fr;
  }

  .featured-strip {
    margin-top: 24px;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .video-list-card,
  .rank-card {
    grid-template-columns: 1fr;
  }

  .rank-number {
    display: none;
  }

  .video-list-cover,
  .rank-cover {
    min-height: 200px;
  }

  .detail-hero {
    padding-top: 42px;
  }

  .detail-content {
    margin-top: 24px;
  }

  .text-card,
  .sticky-card {
    padding: 22px;
  }
}