:root { color-scheme: dark; font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; color: #f6ead3; background: #181c19; font-synthesis: none; }
* { box-sizing: border-box; }
body { margin: 0; background: radial-gradient(ellipse at 80% 0, #5b483022, transparent 50%); }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid #f1c978; outline-offset: 5px; border-radius: 4px; }
.source-header { max-width: 1240px; margin: auto; padding: 25px 32px; display: flex; justify-content: space-between; align-items: center; gap: 16px; font-size: 12px; color: #beaf98; border-bottom: 1px solid #d9bd8e20; }
.back-link { color: #f3d394; padding: 9px 0; }
.back-link:hover { color: #fff2d5; }
main { max-width: 1240px; margin: auto; padding: 0 32px; }
.source-intro { padding: 58px 0 40px; }
.eyebrow { color: #e7bf79; font-size: 12px; letter-spacing: .13em; margin: 0 0 13px; }
h1, h2 { font-family: "Songti SC", "STSong", "Noto Serif CJK SC", serif; font-weight: 600; }
h1 { font-size: clamp(34px, 4.2vw, 56px); line-height: 1.28; letter-spacing: .025em; margin: 0 0 22px; }
.intro-copy { font-size: 15px; line-height: 1.9; color: #c8c0af; }
.era-nav { display: flex; gap: 10px; flex-wrap: wrap; margin: 27px 0; }
.era-nav a { display: flex; align-items: center; gap: 24px; border: 1px solid #bdad893d; border-radius: 30px; padding: 11px 18px; font-size: 13px; }
.era-nav a:hover { background: #e7bf7920; }
.era-nav span { color: #d2ad6a; }
.reading-note { border-left: 2px solid #dbb271; background: #d4bc9020; padding: 18px 22px; max-width: 870px; }
.reading-note strong { font-size: 13px; font-weight: 500; }
.reading-note p { margin: 7px 0 0; font-size: 13px; line-height: 1.9; color: #d0c6b6; }
.source-stops { display: grid; gap: 34px; }
.source-stop { scroll-margin-top: 28px; overflow: hidden; display: grid; grid-template-columns: 1.12fr 1fr; align-items: start; border: 1px solid #d9bd8e26; border-radius: 16px; background: #222821; }
.scene-picture { position: relative; }
.scene-picture img { width: 100%; height: auto; display: block; }
.scene-picture > span { position: absolute; left: 16px; bottom: 16px; font-size: 10px; padding: 6px 10px; background: #101611b8; border: 1px solid #ecdbb233; border-radius: 20px; color: #eee1c5; }
.source-copy { padding: 30px; }
.source-copy h2 { margin: 0 0 9px; font-size: 28px; line-height: 1.3; }
.scene-theme { font-size: 12px; color: #d5bc91; margin: 0 0 25px; }
.source-copy h3 { font-size: 12px; color: #eee3ce; margin: 18px 0 6px; font-weight: 500; }
.source-copy p:not(.eyebrow, .scene-theme, .reference-object) { font-size: 13px; line-height: 1.85; color: #c6c3b4; margin: 0; }
.source-copy .reference-object { margin: 0; padding: 10px 0 0; line-height: 1.85; color: #e1c68d; font-size: 11px; }
.source-links { list-style: none; padding: 16px 0 0; margin: 20px 0 0; border-top: 1px solid #d9bd8e26; }
.source-links a { display: block; font-size: 12px; line-height: 1.8; color: #e9c786; text-decoration: underline; text-decoration-color: #e9c78650; text-underline-offset: 4px; }
.source-links a > span:first-child { display: block; color: #a6a899; font-size: 10px; text-decoration: none; margin-bottom: 2px; }
.source-links a:hover { color: #fff2d0; }
footer { padding: 38px 0 50px; color: #afa899; font-size: 11px; line-height: 1.8; }
@media (max-width: 800px) {
  .source-stop { grid-template-columns: 1fr; }
  .source-copy { padding: 26px; }
  .scene-picture img { aspect-ratio: 16 / 9; object-fit: cover; }
}
@media (max-width: 480px) {
  .source-header { padding: 15px 20px; font-size: 10px; }
  main { padding: 0 20px; }
  .source-intro { padding-top: 38px; }
  .intro-copy { font-size: 13px; }
  .wide-only { display: none; }
  .era-nav { gap: 6px; }
  .era-nav a { padding: 9px 12px; gap: 7px; font-size: 12px; }
  .reading-note { padding: 15px; }
  .reading-note p { font-size: 12px; }
  .source-copy { padding: 22px; }
  .source-copy h2 { font-size: 25px; }
  .source-copy p:not(.eyebrow, .scene-theme, .reference-object) { font-size: 12px; }
  .source-stops { gap: 24px; }
}