.arc-feature .section-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:3rem;align-items:center}.arc-feature-image img{width:100%;height:auto;display:block;border-radius:8px}.arc-story{background:#071321;color:#eef2f7}.arc-shell{max-width:1080px;margin:auto;padding:3rem 1.5rem 5rem}.arc-story a{color:#e9c981;text-underline-offset:.25em}.arc-intro{max-width:760px;margin:auto;padding:1rem 0 3rem}.arc-label{font-size:.875rem;letter-spacing:.15em;color:#d5b978;margin:2rem 0 1rem}.arc-story h1,.arc-story h2,.arc-story h3{font-family:Georgia,'Times New Roman',serif;font-weight:400;letter-spacing:-.025em;line-height:1.15;color:#faf7ee}.arc-story h1{font-size:clamp(3rem,8vw,5.6rem);margin:.7rem 0 1.5rem}.arc-subtitle{font-family:Georgia,serif;font-size:clamp(1.3rem,3vw,1.8rem);color:#e9c981}.arc-description{font-size:1.125rem;max-width:640px;line-height:1.8}.arc-context{font-size:.875rem;line-height:1.7;color:#aebdcc;max-width:640px;margin:1.6rem 0}.arc-download{display:inline-block;padding:.7rem 0}.arc-index{max-width:760px;margin:0 auto 3rem;border-block:1px solid #354353;padding:1.1rem 0;font-size:1rem}.arc-index summary{cursor:pointer;color:#e9c981;min-height:30px}.arc-index li{padding:.35rem 0}.arc-chapter{padding:3rem 0 4rem;border-top:1px solid #28394b;scroll-margin-top:110px}.arc-chapter-heading{max-width:760px;margin:0 auto 2.5rem}.arc-chapter h2{font-size:clamp(2rem,5vw,3.6rem);margin:.6rem 0}.arc-chapter figure{margin:0 0 2.5rem}.arc-enlarge{display:block;cursor:zoom-in}.arc-enlarge img{width:100%;height:auto;display:block}.arc-chapter figcaption{text-align:center;color:#acbbc9;font-size:.875rem;margin-top:.75rem}.arc-key{font:italic 1.4rem/1.6 Georgia,serif;color:#e9c981;text-align:center;max-width:780px;margin:2.5rem auto 3rem}.arc-prose{max-width:680px;margin:auto;font:1.2rem/1.9 Georgia,'Times New Roman',serif}.arc-prose p{margin:0 0 1.35rem}.arc-prose h3{font-size:1.8rem;margin-bottom:2rem}.arc-end{display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;border-top:1px solid #354353;padding-top:2rem}.arc-skip{position:fixed;top:-6rem;left:1rem;background:#071321;color:white;padding:1rem;z-index:100}.arc-skip:focus{top:1rem}.arc-story :focus-visible,.arc-feature :focus-visible,#arc-viewer :focus-visible{outline:3px solid #e9c981;outline-offset:5px}#arc-viewer{width:96vw;max-width:1600px;height:94dvh;max-height:94dvh;background:#050d17;color:#f3f5f8;border:1px solid #728194;padding:0}#arc-viewer::backdrop{background:rgba(0,0,0,.85)}.arc-tools{display:flex;align-items:center;gap:.6rem;padding:1rem;flex-wrap:wrap}.arc-tools h2{font:1rem/1.3 Georgia,serif;margin:0 auto 0 0;max-width:30rem}.arc-tools button,.arc-tools a{font:1rem/1.2 system-ui;color:#fff;background:#142840;border:1px solid #718195;border-radius:4px;padding:.7rem;min-height:44px;min-width:44px;cursor:pointer}.arc-image-scroll{height:calc(100% - 145px);overflow:auto;overscroll-behavior:contain;touch-action:pan-x pan-y pinch-zoom}.arc-image-scroll img{display:block;width:100%;height:auto;max-width:none;margin:auto}.arc-viewer-hint{font-size:.875rem;margin:.75rem 1rem;color:#bcc9d7}body.arc-viewing{overflow:hidden}@media(max-width:650px){.arc-feature .section-inner{grid-template-columns:1fr;gap:1.8rem}.arc-shell{padding:2rem 1.1rem 3rem}.arc-chapter{padding:2rem 0 3rem}.arc-key{font-size:1.2rem}.arc-prose{font-size:1.125rem}.arc-tools h2{flex-basis:100%;max-width:none}.arc-tools{gap:.4rem;padding:.6rem}.arc-tools a{font-size:.875rem}.arc-image-scroll{height:calc(100% - 190px)}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.arc-music{margin-top:2.2rem;padding:1.5rem 0;border-top:1px solid #354353}.arc-music h2{font-size:1.5rem;margin:0 0 .4rem}.arc-music p{font-size:1rem;color:#bdc9d6;margin:.4rem 0 1rem}.arc-music audio{display:block;width:100%;max-width:560px;color-scheme:dark}.arc-music .arc-music-note{font-size:.875rem;margin-top:.75rem;max-width:560px}
.arc-listen{margin:2rem 0;padding:1.6rem;border:1px solid #6d5d3c;border-radius:8px;background:#0b1b2c}.arc-listen h2{font-size:1.8rem;margin:0 0 .7rem}.arc-listen p{font-size:1rem;line-height:1.65;color:#c4cfda}.arc-listen audio{display:block;width:100%;margin:1.2rem 0;color-scheme:dark}.arc-listen-options{display:flex;gap:1rem;flex-wrap:wrap}.arc-listen-options label{flex:1 1 220px;font-size:.9rem;color:#e9c981}.arc-listen select{display:block;width:100%;min-height:44px;margin-top:.4rem;padding:.6rem;background:#142840;border:1px solid #718195;border-radius:4px;color:#fff;font:1rem system-ui}.arc-listen .arc-ai-note{font-size:.875rem;color:#aebdcc;margin-bottom:0}.arc-chapter-listen{display:inline-block;min-height:44px;padding:.7rem 1rem;margin-top:1rem;background:#142840;color:#e9c981;border:1px solid #718195;border-radius:4px;cursor:pointer;font:1rem system-ui}.arc-chapter.is-narrating .arc-chapter-heading{border-left:2px solid #e9c981;padding-left:1rem}

.arc-film{margin:2rem 0;padding:1.5rem 0;border-top:1px solid #354353}.arc-film h2{font-size:1.8rem;margin:0 0 .6rem}.arc-film p{font-size:1rem;color:#bdc9d6}.arc-film video{display:block;width:100%;max-width:430px;height:auto;max-height:75vh;object-fit:contain;margin:1.5rem auto;background:#071321;border:1px solid #354353;border-radius:6px}.arc-film video:focus-visible{outline:3px solid #e9c981;outline-offset:4px}