:root { --ink:#2e2a25; --muted:#6f665d; --paper:#fbf8f1; --accent:#6e6257; }
body { color:var(--ink); background:var(--paper); line-height:1.78; word-break:keep-all; }
h1,h2,h3 { color:var(--ink); letter-spacing:-0.02em; }
blockquote { border-left:2px solid var(--accent); color:var(--muted); font-style:normal; }
.part-illustration { margin:1.5rem auto 2.5rem; max-width:900px; }
.part-illustration img { filter:grayscale(100%); border:0; }
.boundary-question { margin:2rem 0; padding:1rem 1.2rem; border-top:1px solid #aaa097; border-bottom:1px solid #aaa097; color:#443e38; font-family:serif; font-size:1.08rem; }
.draft-note { color:var(--muted); font-size:0.9rem; }

.chapter-animation { margin: 1.5rem 0 2rem; padding: 1rem; background: #f5ebd7; border: 1px solid #ded2bd; border-radius: 12px; }
.chapter-animation video { display: block; width: 100%; aspect-ratio: 16 / 9; background: #f5ebd7; border-radius: 8px; }
.chapter-animation p, .animation-caption { margin: .75rem 0 1.5rem; color: #5b554d; font-size: .92rem; text-align: center; }