:root {
  --brand-primary: #F5A623;
  --brand-primary-dark: #E08E0B;
  --brand-primary-light: #FFC85C;
  --brand-secondary: #FF6B6B;
  --brand-accent: #4ECDC4;
  --bg-page: #FFF9F0;
  --bg-card: #FFFFFF;
  --bg-elevated: #FFFFFF;
  --bg-glass: rgba(255, 255, 255, 0.72);
  --bg-glass-border: rgba(255, 255, 255, 0.45);
  --text-primary: #1F1B16;
  --text-secondary: #5C5347;
  --text-muted: #8A7F70;
  --border-color: rgba(245, 166, 35, 0.16);
  --shadow-sm: 0 2px 8px rgba(31, 27, 22, 0.06);
  --shadow-md: 0 8px 24px rgba(31, 27, 22, 0.08);
  --shadow-lg: 0 16px 48px rgba(31, 27, 22, 0.12);
  --shadow-glow: 0 8px 32px rgba(245, 166, 35, 0.22);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  --max-width: 1200px;
  --header-height: 68px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #14110D;
    --bg-card: #1E1A15;
    --bg-elevated: #262119;
    --bg-glass: rgba(30, 26, 21, 0.72);
    --bg-glass-border: rgba(255, 255, 255, 0.08);
    --text-primary: #F5F0E8;
    --text-secondary: #C4BAA8;
    --text-muted: #8A7F70;
    --border-color: rgba(245, 166, 35, 0.18);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 8px 32px rgba(245, 166, 35, 0.18);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
  background-color: var(--bg-page);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(245, 166, 35, 0.10) 0%, transparent 42%),
    radial-gradient(circle at 88% 18%, rgba(255, 107, 107, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 92%, rgba(78, 205, 196, 0.07) 0%, transparent 45%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  transition: background-color var(--transition-base), color var(--transition-base);
}

::selection {
  background: rgba(245, 166, 35, 0.3);
  color: var(--text-primary);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--brand-primary), var(--brand-primary-dark));
  border-radius: 10px;
  border: 2px solid var(--bg-page);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--brand-primary-dark);
}

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--bg-glass-border);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

header nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

header nav > a:first-child {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-decoration: none;
  background: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  white-space: nowrap;
  position: relative;
  padding: 4px 0;
  transition: transform var(--transition-fast);
}

header nav > a:first-child::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

header nav > a:first-child:hover {
  transform: translateY(-1px);
}

header nav > a:first-child:hover::after {
  transform: scaleX(1);
}

header nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

header nav ul li a {
  position: relative;
  display: inline-block;
  padding: 8px 14px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

header nav ul li a::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.14), rgba(255, 107, 107, 0.10));
  opacity: 0;
  transform: scale(0.92);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  z-index: -1;
}

header nav ul li a:hover {
  color: var(--brand-primary-dark);
  transform: translateY(-2px);
}

header nav ul li a:hover::before {
  opacity: 1;
  transform: scale(1);
}

header nav ul li a:active {
  transform: translateY(0) scale(0.97);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 24px 80px;
  display: block;
}

main > article {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

main h1 {
  position: relative;
  font-size: clamp(1.75rem, 4.2vw, 3rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.5px;
  text-align: center;
  padding: 56px 32px;
  margin-bottom: 8px;
  color: #FFFFFF;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background:
    linear-gradient(135deg, #F5A623 0%, #FF6B6B 45%, #E85D75 75%, #C44569 100%);
  background-size: 200% 200%;
  box-shadow: var(--shadow-glow), 0 20px 60px rgba(255, 107, 107, 0.25);
  animation: gradientShift 12s ease infinite;
  isolation: isolate;
}

main h1::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.28) 0%, transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.18) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

main h1::after {
  content: "🍊 家庭观影首选";
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 3px;
  color: rgba(255, 255, 255, 0.85);
  padding: 6px 20px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  white-space: nowrap;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

main section {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
  scroll-margin-top: calc(var(--header-height) + 24px);
  overflow: hidden;
}

main section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary), var(--brand-accent));
  opacity: 0.85;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

main section:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(245, 166, 35, 0.32);
}

main section h2 {
  position: relative;
  font-size: clamp(1.3rem, 2.6vw, 1.75rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-primary);
  margin-bottom: 22px;
  padding-left: 18px;
  letter-spacing: -0.3px;
}

main section h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 1.2em;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--brand-primary), var(--brand-secondary));
  box-shadow: 0 0 12px rgba(245, 166, 35, 0.5);
}

main section h3 {
  font-size: 1.12rem;
  font-weight: 650;
  color: var(--brand-primary-dark);
  margin: 24px 0 10px;
  line-height: 1.4;
  display: flex;
  align-items: center;
  gap: 8px;
}

main section h3::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
  box-shadow: 0 0 8px rgba(245, 166, 35, 0.6);
  flex-shrink: 0;
}

main section h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 16px 0 8px;
  padding-left: 14px;
  position: relative;
}

main section h4::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--brand-secondary);
  font-weight: 700;
}

main section p {
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--text-secondary);
  margin-bottom: 12px;
  text-align: justify;
  word-break: break-word;
}

main section p:last-child {
  margin-bottom: 0;
}

main section ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 14px 0;
}

main section ul li {
  position: relative;
  padding: 10px 16px 10px 42px;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--text-secondary);
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.06), rgba(255, 107, 107, 0.04));
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--brand-primary);
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

main section ul li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
  box-shadow: 0 0 8px rgba(245, 166, 35, 0.5);
}

main section ul li:hover {
  transform: translateX(4px);
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.12), rgba(255, 107, 107, 0.08));
  border-left-color: var(--brand-secondary);
}

main section a {
  color: var(--brand-primary-dark);
  text-decoration: none;
  font-weight: 550;
  position: relative;
  transition: color var(--transition-fast);
}

main section a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

main section a:hover {
  color: var(--brand-secondary);
}

main section a:hover::after {
  transform: scaleX(1);
}

main section article {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

main section article:last-child {
  margin-bottom: 0;
}

main section article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(245, 166, 35, 0.35);
}

main section article h3 {
  margin-top: 0;
}

main section article h3::before {
  display: none;
}

main section article h3 {
  padding-left: 0;
}

main section blockquote {
  position: relative;
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.08), rgba(255, 107, 107, 0.06));
  border-left: 4px solid var(--brand-primary);
  border-radius: var(--radius-md);
  padding: 20px 24px 20px 56px;
  margin-bottom: 14px;
  font-style: normal;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}

main section blockquote::before {
  content: "\201C";
  position: absolute;
  left: 18px;
  top: 8px;
  font-size: 3.2rem;
  line-height: 1;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--brand-primary);
  opacity: 0.55;
  font-weight: 700;
}

main section blockquote p {
  font-size: 0.98rem;
  color: var(--text-primary);
  font-weight: 500;
  margin: 0;
  text-align: left;
  line-height: 1.75;
}

main section blockquote:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.14), rgba(255, 107, 107, 0.10));
}

main section#faq h3 {
  margin-top: 20px;
  padding: 14px 18px;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--brand-primary);
  font-size: 1.02rem;
  color: var(--text-primary);
  transition: background var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
}

main section#faq h3::before {
  display: none;
}

main section#faq h3:hover {
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.10), rgba(255, 107, 107, 0.06));
  transform: translateX(4px);
  border-left-color: var(--brand-secondary);
}

main section#faq p {
  padding-left: 18px;
  border-left: 2px dashed var(--border-color);
  margin-left: 2px;
}

main section#howto h4 {
  font-size: 1.02rem;
  color: var(--brand-primary-dark);
  margin-top: 20px;
  padding: 8px 14px;
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.10), rgba(255, 107, 107, 0.06));
  border-radius: var(--radius-sm);
  border-left: none;
}

main section#howto h4::before {
  content: "✓";
  position: static;
  color: var(--brand-secondary);
  font-weight: 800;
  margin-right: 2px;
}

main section#contact p {
  padding: 8px 0;
  border-bottom: 1px dashed var(--border-color);
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

main section#contact p:last-child {
  border-bottom: none;
}

main section#sitemap ul,
main section#links ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 10px;
}

main section#sitemap ul li,
main section#links ul li {
  padding: 12px 16px 12px 40px;
  text-align: left;
}

main section#legal h2:not(:first-child) {
  margin-top: 32px;
}

main section#legal p {
  font-size: 0.92rem;
  color: var(--text-muted);
}

footer {
  background: linear-gradient(180deg, transparent 0%, rgba(245, 166, 35, 0.06) 100%);
  border-top: 1px solid var(--border-color);
  padding: 40px 24px 32px;
  text-align: center;
  margin-top: 40px;
}

footer p {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 6px;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

footer p:first-child {
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

footer a {
  color: var(--brand-primary-dark);
  text-decoration: none;
  font-weight: 550;
  transition: color var(--transition-fast);
  position: relative;
}

footer a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

footer a:hover {
  color: var(--brand-secondary);
}

footer a:hover::after {
  transform: scaleX(1);
}

@media (max-width: 900px) {
  header nav {
    height: auto;
    padding: 12px 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  header nav ul {
    width: 100%;
    justify-content: flex-start;
    gap: 2px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px;
  }

  header nav ul::-webkit-scrollbar {
    display: none;
  }

  header nav ul li a {
    padding: 6px 10px;
    font-size: 0.85rem;
    white-space: nowrap;
  }

  main {
    padding: 24px 16px 60px;
  }

  main h1 {
    padding: 40px 20px;
    border-radius: var(--radius-lg);
  }

  main h1::after {
    font-size: 0.68rem;
    letter-spacing: 2px;
    padding: 5px 14px;
    bottom: 12px;
  }

  main section {
    padding: 26px 20px;
    border-radius: var(--radius-md);
  }

  main section h2 {
    font-size: 1.25rem;
    margin-bottom: 18px;
  }

  main section h3 {
    font-size: 1.04rem;
  }

  main section blockquote {
    padding: 16px 18px 16px 48px;
  }

  main section blockquote::before {
    font-size: 2.6rem;
    left: 14px;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }

  header nav {
    padding: 10px 14px;
  }

  header nav > a:first-child {
    font-size: 1.2rem;
  }

  main {
    padding: 18px 12px 48px;
  }

  main > article {
    gap: 22px;
  }

  main h1 {
    padding: 32px 16px;
    font-size: 1.5rem;
    border-radius: var(--radius-md);
  }

  main h1::after {
    font-size: 0.6rem;
    letter-spacing: 1.5px;
    padding: 4px 10px;
    bottom: 8px;
  }

  main section {
    padding: 22px 16px;
    border-radius: var(--radius-md);
  }

  main section h2 {
    font-size: 1.15rem;
    padding-left: 14px;
    margin-bottom: 16px;
  }

  main section h2::before {
    width: 4px;
  }

  main section p {
    font-size: 0.92rem;
    line-height: 1.8;
  }

  main section ul li {
    padding: 8px 12px 8px 34px;
    font-size: 0.88rem;
  }

  main section ul li::before {
    left: 12px;
    width: 7px;
    height: 7px;
  }

  main section article {
    padding: 16px 14px;
  }

  main section blockquote {
    padding: 14px 14px 14px 42px;
  }

  main section blockquote::before {
    font-size: 2.2rem;
    left: 12px;
    top: 6px;
  }

  main section blockquote p {
    font-size: 0.9rem;
  }

  main section#sitemap ul,
  main section#links ul {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  main section#sitemap ul li,
  main section#links ul li {
    padding: 10px 10px 10px 32px;
    font-size: 0.82rem;
  }

  main section#sitemap ul li::before,
  main section#links ul li::before {
    left: 12px;
    width: 6px;
    height: 6px;
  }

  footer {
    padding: 28px 16px 24px;
  }

  footer p {
    font-size: 0.78rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  header {
    background: var(--bg-card);
  }
}

@media print {
  header,
  footer {
    display: none;
  }

  main h1 {
    color: var(--text-primary);
    background: none;
    box-shadow: none;
    padding: 20px 0;
    text-align: left;
  }

  main h1::after {
    display: none;
  }

  main section {
    box-shadow: none;
    border: 1px solid #ddd;
    page-break-inside: avoid;
  }

  main section:hover {
    transform: none;
    box-shadow: none;
  }
}