.l3-page .lesson3-page{width:min(1440px,calc(100% - 40px));margin:auto}.l3-page .l3-nav{display:flex;align-items:center;justify-content:space-between;padding:18px 0}.l3-brand small{margin-left:8px;color:#82e6df;font:700 9px ui-monospace,monospace;letter-spacing:.14em}.l3-main{padding:20px 0 94px}.l3-crumb{margin:6px 0 24px;color:#8293b2;font-size:13px}
.l3-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(270px,360px);gap:clamp(30px,5vw,72px);align-items:center;padding:40px 0 52px;border-bottom:1px solid #2b3c5b}.l3-kicker{color:#8deee3;font:700 12px/1.2 ui-monospace,monospace;letter-spacing:.08em}.l3-hero h1{max-width:920px;margin:17px 0;font-size:clamp(43px,5vw,76px);line-height:1.08;letter-spacing:-.06em}.l3-hero h1 span{display:block;color:#82e6df}.l3-hero p{max-width:690px;margin:0;color:#adbbd5;font-size:17px;line-height:1.8}.l3-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.l3-meta span{border:1px solid #344968;border-radius:999px;padding:7px 10px;color:#c3d1e8;font-size:12px}.l3-cover{margin:0;border:1px solid #57e8dc;border-radius:25px;overflow:hidden;background:#0a1425;box-shadow:0 22px 60px #0006}.l3-cover img{display:block;width:100%;aspect-ratio:1;object-fit:cover}.l3-cover figcaption{padding:12px 18px;color:#72ece0;font:700 12px ui-monospace,monospace;letter-spacing:.14em}
.l3-layout{display:grid;grid-template-columns:220px minmax(0,1fr) 210px;gap:38px;align-items:start;margin-top:34px}.l3-toc{position:sticky;top:18px;padding:16px 14px;border:1px solid #30435f;border-radius:16px;background:#0b1324}.l3-toc h2{padding:2px 7px 13px;margin:0;color:#f3f6ff;font-size:16px}.l3-toc a{display:block;padding:8px 7px;border-radius:8px;color:#9fb0cc;font-size:13px;line-height:1.35}.l3-toc a:hover,.l3-toc a.active{background:#65f8dd14;color:#79f4e4}.l3-toc-actions{display:grid;gap:8px;margin-top:16px;padding-top:16px;border-top:1px solid #2b3d59}.l3-toc-actions>*{min-height:37px;padding:9px;text-align:center;font-size:12px}
.l3-content{min-width:0;color:#d9e2f0;font-size:16px;line-height:1.92}.l3-section{margin:0 0 64px;scroll-margin-top:26px}.l3-section>h2{max-width:800px;margin:0 0 18px;color:#f3f7ff;font-size:clamp(28px,3vw,42px);line-height:1.2;letter-spacing:-.035em}.l3-section>h2:before{content:"";display:block;width:36px;height:2px;margin:0 0 15px;background:#75eadf}.l3-section h3{margin:38px 0 12px;color:#eaf1fc;font-size:22px;line-height:1.35}.l3-content p{max-width:780px;margin:0 0 16px;color:#c0cce0}#preview{padding:26px 28px;margin-bottom:42px;border:1px solid #34536d;border-radius:18px;background:linear-gradient(135deg,#12344e,#10182c 72%)}#preview>h2{color:#82ebe0}#preview>h2:before{display:none}.l3-callout{max-width:780px;margin:18px 0;padding:15px 18px;border-left:3px solid #8be4dc;background:#65f8dd0c;color:#def6f0}
.l3-media{margin:26px 0 38px}.l3-media img,.l3-media video{display:block;width:100%;max-height:680px;object-fit:contain;border:1px solid #344b6d;border-radius:13px;background:#07101d}.l3-media figcaption,.l3-asset figcaption,.l3-shots figcaption{margin-top:9px;color:#8fa2c0;font-size:12px}.l3-prompt{max-width:820px;margin:22px 0 34px;border:1px solid #395875;border-radius:14px;background:#091220;overflow:hidden}.l3-prompt-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 15px;border-bottom:1px solid #29425d;background:#13283d}.l3-prompt-label{color:#a7d5ee;font:700 13px ui-monospace,monospace}.l3-copy{flex:none;border:1px solid #4d8298;border-radius:8px;background:#69e8df;color:#061720;padding:8px 12px;font-size:12px;font-weight:900}.l3-copy:hover{background:#d8ff75}.l3-prompt pre,.l3-script pre{max-height:480px;margin:0;padding:20px;overflow:auto;white-space:pre-wrap;color:#d8e8f8;font:13px/1.85 ui-monospace,monospace}.l3-script{max-width:820px;margin:20px 0 30px;border:1px solid #365674;border-radius:15px;background:#091220;overflow:hidden}.l3-script summary{cursor:pointer;padding:14px 18px;background:#11243a;color:#86f0e2;font-size:13px;font-weight:800}.l3-source-prompt-grid{display:grid;gap:18px}
.l3-assets{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px;margin:26px 0 38px}.l3-asset{margin:0;padding:12px;border:1px solid #334b6c;border-radius:15px;background:#0d1627}.l3-asset>img{display:block;width:100%;aspect-ratio:16/10;object-fit:contain;background:#07101d}.l3-people{display:grid;grid-template-columns:repeat(2,1fr);gap:4px}.l3-people img{display:block;width:100%;aspect-ratio:1;object-fit:cover}.l3-shots{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin:25px 0}.l3-shots figure{margin:0;padding:10px;border:1px solid #334b6c;border-radius:15px;background:#0d1627}.l3-shots video{display:block;width:100%;aspect-ratio:16/9;background:#000}.l3-tools{display:grid;grid-template-columns:1fr 1fr;gap:14px}.l3-tools img{width:100%;border:1px solid #344b6d;border-radius:13px}.l3-delivery{display:grid;grid-template-columns:1fr 1fr;gap:13px}.l3-audio{padding:16px;border:1px solid #304563;border-radius:15px;background:#0c1628}.l3-audio h3{margin:0 0 10px;font-size:16px}.l3-audio audio{width:100%}.l3-aside{position:sticky;top:18px;display:grid;gap:10px;padding:17px;border:1px solid #2d4661;border-radius:15px;background:#0c1628}.l3-note-label{color:#7ee9de;font-size:12px;font-weight:800}.l3-aside strong{color:#edf5ff;font-size:17px;line-height:1.4}.l3-aside p{margin:0 0 10px;color:#9fb1cd;font-size:13px;line-height:1.65}.l3-complete{min-height:42px;border:1px solid #86eee3;border-radius:10px;background:#65f8dd;color:#061820;font-weight:900}.l3-complete.done{background:#d8ff75}.l3-toast{position:fixed;z-index:110;right:20px;bottom:20px;padding:12px 15px;border:1px solid #6ce9df;border-radius:10px;background:#0c1729;color:#ecffff;opacity:0;transform:translateY(15px);transition:.22s}.l3-toast.show{opacity:1;transform:none}
@media(max-width:1120px){.l3-layout{grid-template-columns:205px minmax(0,1fr)}.l3-aside{display:none}}@media(max-width:760px){.l3-page .lesson3-page{width:min(100% - 28px,1440px)}.l3-page .links{display:none}.l3-hero{display:block;padding-top:24px}.l3-hero h1{font-size:42px}.l3-cover{max-width:440px;margin-top:30px}.l3-layout{display:block;margin-top:24px}.l3-toc{position:static;margin-bottom:28px}.l3-toc a{display:inline-block;border:1px solid #2c405d;margin:3px}.l3-content{font-size:15px}.l3-section{margin-bottom:48px}.l3-section>h2{font-size:30px}.l3-assets,.l3-shots,.l3-tools,.l3-delivery{grid-template-columns:1fr}.l3-prompt pre,.l3-script pre{max-height:400px;font-size:12px}}@media(prefers-reduced-motion:reduce){.l3-page *{scroll-behavior:auto!important;transition:none!important}}
.l3-prompt--source{padding:0!important}
.l3-article,.l3-tool-flow,.l3-tool-step,.l3-vs,.l3-vs-grid,.l3-vs-item{min-width:0;max-width:100%}
.l3-tool-flow{display:grid;gap:18px;margin:26px 0 38px;overflow:hidden}
.l3-tool-step{display:grid;grid-template-columns:minmax(0,1fr) 230px;margin:0;overflow:hidden;border:1px solid #334b6c;border-radius:15px;background:#0d1627}
.l3-tool-step img{display:block;width:100%;max-width:100%;height:auto;max-height:620px;object-fit:contain;background:#f5f7fb}
.l3-tool-step figcaption{display:flex;min-width:0;flex-direction:column;justify-content:center;gap:8px;padding:18px;color:#c0cce0;line-height:1.6}
.l3-tool-step figcaption strong{color:#82e6df;font:800 13px ui-monospace,monospace}.l3-tool-step figcaption span{font-size:13px}
.l3-vs{margin:26px 0 38px;overflow:hidden}.l3-vs>header{padding:18px;border:1px solid #334b6c;border-bottom:0;border-radius:15px 15px 0 0;background:#11243a}.l3-vs>header span{color:#82e6df;font:800 11px ui-monospace,monospace;letter-spacing:.1em}.l3-vs>header h3{margin:8px 0 4px}.l3-vs>header p{margin:0}
.l3-vs-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;overflow:hidden;border:1px solid #334b6c;border-radius:0 0 15px 15px;background:#334b6c}
.l3-vs-item{margin:0;overflow:hidden;background:#0d1627}.l3-vs-item video{display:block;width:100%;max-width:100%;aspect-ratio:16/9;object-fit:contain;background:#000}.l3-vs-item figcaption{padding:12px 14px;color:#c3d1e8;font-size:12px}
@media(max-width:760px){.l3-tool-step,.l3-vs-grid{grid-template-columns:1fr}.l3-tool-step figcaption{order:-1}.l3-tool-step img{max-height:none}}