:root {
  color-scheme: dark;
  --bg: #090a0d;
  --surface: #121419;
  --raised: #1b1e24;
  --text: #f5f2ea;
  --muted: #a8adb7;
  --accent: #f2b650;
  --line: #2b2e35;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 2rem; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.7 var(--font); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-underline-offset: .24em; text-decoration-thickness: 1px; }
a:hover { color: var(--accent); }
button, summary { cursor: pointer; }
button { font: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; border-radius: 3px; }
img, svg { max-width: 100%; }
button, a, summary { -webkit-tap-highlight-color: transparent; }
.wrap { width: min(1184px, calc(100% - 96px)); margin-inline: auto; }
.skip-link { position: absolute; z-index: 5; left: 24px; top: -100px; padding: 12px 20px; color: var(--bg); background: var(--accent); }
.skip-link:focus { top: 12px; }
.site-header { border-bottom: 1px solid var(--line); }
.header-inner { min-height: 96px; display: flex; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-size: 22px; letter-spacing: -.6px; font-weight: 650; }
.brand img { width: 40px; height: 40px; border-radius: 11px; }
.main-nav { display: flex; gap: 28px; margin-left: auto; align-items: center; }
.main-nav a, .language-link { font-size: 14px; text-decoration: none; display: inline-flex; min-height: 44px; align-items: center; }
.main-nav a { color: var(--muted); }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--text); }
.language-link { border-left: 1px solid var(--line); padding-left: 28px; gap: 8px; white-space: nowrap; }
.language-link svg { width: 17px; height: 17px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 22px; color: var(--accent); font-size: 12px; font-weight: 650; letter-spacing: .15em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 22px; height: 2px; background: currentColor; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.12; font-weight: 600; text-wrap: balance; }
h1 { font-size: clamp(42px, 4.8vw, 68px); letter-spacing: -.055em; margin-bottom: 25px; }
h1 em { color: var(--accent); font-style: normal; }
h2 { font-size: clamp(30px, 3.3vw, 44px); letter-spacing: -.04em; }
h3 { font-size: 22px; letter-spacing: -.02em; }
p { margin-bottom: 20px; }
.muted, .lead, .fine-print { color: var(--muted); }
.lead { max-width: 560px; font-size: 18px; line-height: 1.75; }
.fine-print { font-size: 13px; }
.hero { display: grid; grid-template-columns: .95fr 1.15fr; gap: 60px; align-items: center; padding-block: 96px 88px; }
.hero-copy { padding-bottom: 4px; }
.hero .lead { max-width: 430px; }
.actions { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; margin-top: 32px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 13px; min-height: 50px; padding: 12px 22px; border: 1px solid transparent; border-radius: 8px; text-decoration: none; font-size: 14px; font-weight: 650; transition: background .18s ease, color .18s ease; }
.button-primary { background: var(--accent); color: var(--bg); }
.button-primary:hover { background: #ffcc75; color: var(--bg); }
.button-secondary { border-color: #555b67; }
.text-link { font-size: 14px; min-height: 44px; display: inline-flex; align-items: center; gap: 10px; }
.availability { margin: 17px 0 0; font-size: 12px; color: var(--muted); }
.preview { margin: 0; min-width: 0; }
.preview-frame { background: var(--surface); border: 1px solid #35383f; border-radius: 15px; overflow: hidden; box-shadow: 0 28px 80px #0005; }
.preview-top { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; font-size: 11px; color: var(--muted); letter-spacing: .06em; }
.preview-top span:first-child { color: var(--text); }
.preview-art { position: relative; aspect-ratio: 1.55; background: #303d3b; overflow: hidden; }
.landscape { display: block; position: absolute; width: 100%; height: 100%; object-fit: cover; }
.scene-label { position: absolute; top: 20px; left: 22px; display: flex; align-items: center; gap: 7px; padding: 5px 9px; border-radius: 4px; background: var(--bg); color: var(--text); font-size: 10px; letter-spacing: .18em; }
.scene-label::before { content: ""; display: block; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }
.captions { position: absolute; left: 16px; right: 16px; bottom: 27px; text-align: center; text-shadow: 0 2px 8px #000, 0 1px 2px #000; }
.caption-en { display: block; font-size: clamp(16px, 1.5vw, 23px); font-weight: 600; line-height: 1.4; letter-spacing: -.025em; }
.caption-zh { display: block; margin-top: 7px; font-size: 15px; color: #ffe2a5; line-height: 1.5; }
.captions.original .caption-zh { display: none; }
.captions.cinema .caption-en { font-family: Georgia, "Times New Roman", serif; font-size: 25px; font-weight: 400; }
.captions.cinema .caption-zh { color: var(--text); }
.preview-controls { padding: 18px 22px 20px; }
.progress-track { height: 3px; background: #3c414a; position: relative; margin: 4px 0 13px; }
.progress-track::before { content: ""; display: block; width: 38%; height: 100%; background: var(--text); }
.progress-track::after { content: ""; position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--text); left: 38%; top: -2px; }
.preview-time { display: flex; justify-content: space-between; font-size: 10px; color: var(--muted); font-variant-numeric: tabular-nums; letter-spacing: .06em; }
.preview-time span:nth-child(2) { color: var(--accent); }
.preview-caption { margin-top: 22px; display: flex; justify-content: space-between; gap: 12px; align-items: center; color: var(--muted); font-size: 11px; }
.preview-modes { display: flex; flex-wrap: wrap; gap: 4px; }
.preview-modes button { background: transparent; color: var(--muted); border: 1px solid transparent; border-radius: 5px; font-size: 11px; min-height: 36px; padding: 5px 9px; }
.preview-modes button[aria-pressed="true"] { color: var(--accent); background: #f2b6500c; border-color: #7a6036; }
.preview-modes button:hover { color: var(--text); }
[hidden] { display: none !important; }
.principles { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line); padding-block: 26px; gap: 24px; }
.principles div { display: flex; gap: 15px; align-items: center; font-size: 13px; color: var(--muted); }
.principles svg { width: 21px; height: 21px; flex: 0 0 auto; color: var(--accent); }
.section { padding-block: 96px; }
.section-heading { display: flex; gap: 48px; align-items: end; justify-content: space-between; margin-bottom: 50px; }
.section-heading h2 { margin-bottom: 0; max-width: 550px; }
.section-heading p { max-width: 345px; margin-bottom: 0; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.feature { border-top: 1px solid var(--line); padding-top: 24px; }
.feature-number { color: var(--accent); font-size: 12px; font-variant-numeric: tabular-nums; display: block; margin-bottom: 26px; }
.feature p { color: var(--muted); font-size: 15px; }
.feature-tag { display: inline-block; font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.source-section { background: var(--surface); border-block: 1px solid var(--line); }
.sources { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.sources h2 { max-width: 460px; }
.source-list { list-style: none; padding: 0; margin: 0; }
.source-list li { padding: 19px 0; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.source-list li:first-child { padding-top: 0; }
.source-list span { font-size: 12px; color: var(--muted); }
.source-list strong { font-weight: 500; }
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.plan { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 36px; }
.plan.pro { border-color: #80643a; }
.plan-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.plan-top h3 { margin: 0; font-size: 25px; }
.pill { color: var(--accent); background: #f2b6500d; border: 1px solid #80643a; font-size: 11px; padding: 3px 10px; border-radius: 5px; }
.plan p { color: var(--muted); font-size: 15px; }
.plan ul { list-style: none; margin: 25px 0 0; padding: 0; }
.plan li { position: relative; padding-left: 24px; margin-bottom: 10px; font-size: 14px; }
.plan li::before { position: absolute; content: "✓"; left: 0; color: var(--accent); }
.plan-note { max-width: 900px; margin-top: 24px; }
.privacy-banner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; border-top: 1px solid var(--line); padding-block: 70px; }
.privacy-banner h2 { margin-bottom: 20px; }
.privacy-banner p { color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); padding-block: 35px; }
.footer-inner { display: flex; gap: 32px; justify-content: space-between; align-items: center; }
.footer-brand { font-size: 16px; font-weight: 600; }
.footer-note { font-size: 12px; color: var(--muted); margin: 7px 0 0; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a { font-size: 13px; color: var(--muted); min-height: 44px; display: inline-flex; align-items: center; }
.page-heading { padding-block: 72px 45px; max-width: 860px; }
.page-heading h1 { font-size: clamp(40px, 5vw, 62px); }
.page-heading .lead { max-width: 700px; }
.updated { color: var(--muted); font-size: 13px; margin-bottom: 0; }
.document-layout { display: grid; grid-template-columns: 235px minmax(0, 735px); gap: 75px; align-items: start; padding-bottom: 90px; }
.toc { position: sticky; top: 32px; border-top: 1px solid var(--line); padding-top: 20px; }
.toc p { font-size: 11px; letter-spacing: .13em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.toc a { display: block; color: var(--muted); text-decoration: none; font-size: 13px; padding: 8px 0; }
.toc a:hover { color: var(--accent); }
.prose section { margin-bottom: 38px; scroll-margin-top: 30px; }
.prose section + section { border-top: 1px solid var(--line); padding-top: 35px; }
.prose h2 { font-size: 25px; line-height: 1.3; letter-spacing: -.025em; margin-bottom: 18px; }
.prose p, .prose li { color: var(--muted); font-size: 16px; line-height: 1.85; overflow-wrap: anywhere; }
.prose p:last-child { margin-bottom: 0; }
.prose a, .prose strong { color: var(--text); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { padding-left: 5px; margin-block: 8px; }
.callout { padding: 24px 28px; background: var(--surface); border-left: 2px solid var(--accent); margin-bottom: 35px; }
.callout p { margin-bottom: 0; }
.contact-panel { border: 1px solid var(--line); border-radius: 10px; padding: 28px; margin-bottom: 38px; background: var(--surface); }
.contact-panel h2 { margin-bottom: 12px; }
.contact-panel .contact-address { display: inline-block; color: var(--accent); font-size: 21px; margin-block: 4px 15px; overflow-wrap: anywhere; }
.contact-panel .fine-print { font-size: 13px; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { padding: 22px 32px 22px 0; color: var(--text); position: relative; line-height: 1.5; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 5px; top: 20px; color: var(--accent); font-size: 20px; }
.faq details[open] summary::after { content: "−"; }
.faq details p { padding: 0 25px 22px 0; margin-bottom: 0; }
.not-found { padding-block: 100px 130px; max-width: 720px; }
.draft-notice { padding: 10px 24px; text-align: center; background: #493717; font-size: 13px; }
:lang(zh-Hans) h1 { letter-spacing: -.04em; line-height: 1.22; }
:lang(zh-Hans) .hero h1 { font-size: clamp(42px, 4.2vw, 59px); }
:lang(zh-Hans) h2 { line-height: 1.25; }
:lang(zh-Hans) .lead { line-height: 1.9; }
@media (min-width: 1400px) { .hero { padding-block: 108px; } }
@media (max-width: 1050px) {
  .wrap { width: calc(100% - 64px); }
  .hero { gap: 36px; }
  .hero h1 { font-size: 48px; }
  .header-inner { gap: 20px; }
  .main-nav { gap: 20px; }
  .language-link { padding-left: 20px; }
  .document-layout { grid-template-columns: 180px minmax(0, 1fr); gap: 40px; }
  .sources { gap: 50px; }
}
@media (max-width: 800px) {
  .hero { grid-template-columns: 1fr; padding-block: 65px; gap: 48px; }
  .hero-copy { max-width: 570px; }
  .hero h1 { font-size: 60px; max-width: 620px; }
  .hero .lead { max-width: 530px; }
  .preview { max-width: 610px; width: 100%; }
  .preview-art { aspect-ratio: 1.8; }
  .caption-en { font-size: 22px; }
  .feature-grid { gap: 26px; }
  .feature h3 { font-size: 20px; }
  .principles div { font-size: 12px; gap: 10px; }
  .section-heading { align-items: start; gap: 30px; }
  .section-heading p { max-width: 280px; }
  .section { padding-block: 72px; }
  .sources { grid-template-columns: 1fr; gap: 30px; }
  .plan { padding: 26px; }
  .document-layout { grid-template-columns: 1fr; gap: 30px; }
  .toc { position: static; display: flex; gap: 0 20px; flex-wrap: wrap; }
  .toc p { flex-basis: 100%; margin-bottom: 5px; }
  .toc a { padding-block: 8px; }
  .privacy-banner { gap: 35px; }
}
@media (max-width: 600px) {
  .wrap { width: calc(100% - 40px); }
  .header-inner { flex-wrap: wrap; gap: 0; padding-block: 17px 6px; }
  .brand { font-size: 21px; }
  .brand img { width: 36px; height: 36px; }
  .language-link { order: 1; margin-left: auto; border: 0; padding-left: 12px; }
  .main-nav { order: 2; width: 100%; justify-content: space-between; margin-top: 10px; gap: 12px; }
  .main-nav a { font-size: 13px; }
  .hero { padding-block: 50px; gap: 36px; }
  .hero h1 { font-size: clamp(42px, 12vw, 58px); }
  .hero .lead { font-size: 16px; }
  .actions { gap: 20px; margin-top: 27px; }
  .eyebrow { font-size: 10px; margin-bottom: 20px; }
  .preview-art { aspect-ratio: 1.4; }
  .preview-top { padding: 12px 15px; font-size: 10px; }
  .caption-en { font-size: 17px; }
  .caption-zh { font-size: 13px; }
  .captions.cinema .caption-en { font-size: 21px; }
  .preview-caption { flex-wrap: wrap; margin-top: 13px; gap: 5px 15px; }
  .preview-modes button { min-height: 44px; }
  .principles { grid-template-columns: 1fr; gap: 15px; }
  .principles div { font-size: 13px; }
  .section { padding-block: 56px; }
  .section-heading { display: block; margin-bottom: 35px; }
  .section-heading p { margin-top: 22px; max-width: 100%; }
  .feature-grid { grid-template-columns: 1fr; gap: 22px; }
  .feature { position: relative; padding-left: 42px; padding-top: 24px; }
  .feature-number { position: absolute; left: 0; top: 24px; }
  .feature h3 { font-size: 23px; }
  .feature p { margin-bottom: 12px; }
  .source-list li { align-items: start; }
  .source-list strong { font-size: 15px; }
  .source-list span { text-align: right; }
  .plans, .privacy-banner { grid-template-columns: 1fr; gap: 20px; }
  .plan { padding: 26px 24px; }
  .privacy-banner { padding-block: 50px; }
  .privacy-banner h2 { margin-bottom: 0; }
  .footer-inner { display: block; }
  .footer-links { gap: 20px; margin-top: 17px; }
  .page-heading { padding-block: 48px 30px; }
  .page-heading .lead { font-size: 16px; }
  .document-layout { padding-bottom: 50px; }
  .prose h2 { font-size: 23px; }
  .contact-panel, .callout { padding: 22px; }
  .contact-panel .contact-address { font-size: 18px; }
  :lang(zh-Hans) .hero h1 { font-size: clamp(38px, 10.8vw, 52px); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}