:root{--night:#121018;--steel:#241b30;--mist:#e9e1ee;--paper:#f4f0f5;--ink:#211b25;--blue:#7b6cff;--amber:#c8ffec;--line:#aebbc4;--max:1140px}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;line-height:1.72}a{color:inherit;text-decoration:none}.topbar{height:70px;background:var(--night);color:white;display:flex;align-items:center;padding:0 max(22px,calc((100% - var(--max))/2));gap:28px}.yin-mark{font-weight:950;margin-right:auto;letter-spacing:.03em}.yin-mark i{color:var(--amber);font-style:normal}.topbar nav{display:flex;gap:24px;font-size:.9rem}.nav-toggle{display:none;background:transparent;border:1px solid #ffffff55;color:white;padding:.5rem}.config-stage{background:var(--night);color:white}.stage-grid{max-width:var(--max);margin:auto;display:grid;grid-template-columns:.8fr 1.2fr;min-height:560px}.stage-copy{padding:76px 35px 62px 0;display:flex;flex-direction:column;justify-content:center}.micro-label{font:800 .72rem monospace;letter-spacing:.18em;color:var(--amber)}h1,h2{font-family:"Noto Serif SC",Georgia,serif;line-height:1.12}.config-stage h1{font-size:clamp(2.8rem,5vw,5rem);margin:.6rem 0 1.2rem}.config-stage p{color:#bdcad4}.stage-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:1.2rem}.stage-actions a{border:1px solid #ffffff55;padding:.72rem 1rem;font-weight:800}.stage-actions a:first-child{background:var(--amber);border-color:var(--amber);color:#111}.config-stage img{width:100%;height:560px;object-fit:cover}.identity-ribbon{max-width:var(--max);margin:-26px auto 0;background:white;border:1px solid var(--line);display:grid;grid-template-columns:repeat(3,1fr);position:relative}.identity-ribbon article{padding:24px;border-right:1px solid var(--line)}.identity-ribbon article:last-child{border:0}.identity-ribbon b{color:var(--blue);font:800 .72rem monospace}.identity-ribbon h3{margin:.35rem 0}.identity-ribbon p{font-size:.9rem;color:#64717b}.workzone{max-width:var(--max);margin:auto;padding:78px 0}.workzone h2{font-size:clamp(2rem,4vw,3.5rem);margin:.3rem 0 1rem}.intro-note{max-width:50rem;color:#64717b}.config-rail{margin-top:30px;border-top:3px solid var(--night)}.config-step{display:grid;grid-template-columns:95px 1fr 190px;align-items:center;border-bottom:1px solid var(--line)}.config-step>*{padding:18px 8px}.config-step code{color:var(--amber);font-weight:900}.config-step span{color:#64717b}.config-step strong{text-align:right}.mist{background:var(--mist)}.device-sleeves{display:grid;grid-template-columns:repeat(4,1fr);background:white;border:1px solid var(--line)}.device-sleeves article{padding:24px;border-right:1px solid var(--line)}.device-sleeves article:last-child{border:0}.device-sleeves i{display:block;width:12px;height:12px;background:var(--blue);box-shadow:0 0 0 7px #7b6cff33;border-radius:50%}.device-sleeves p{font-size:.9rem;color:#63707a}.ledger-split{display:grid;grid-template-columns:.72fr 1.28fr;gap:50px}.ledger{border-top:4px double var(--night)}.ledger p{display:grid;grid-template-columns:145px 1fr;margin:0;border-bottom:1px solid var(--line)}.ledger b,.ledger span{padding:14px 8px}.ledger span{border-left:1px dashed var(--line)}.session-panel{background:var(--night);color:white}.state-row{display:grid;grid-template-columns:90px 1fr auto;gap:20px;padding:19px 0;border-bottom:1px solid #ffffff22}.state-row code{color:var(--amber)}.state-row p{margin:0;color:#c2cdd6}.state-row span{color:#7f91a0;font-size:.82rem}.field-notes{border-top:3px solid var(--night)}.field-note{display:grid;grid-template-columns:75px 1fr auto;gap:22px;padding:24px 0;border-bottom:1px solid var(--line);align-items:center}.field-note time{color:var(--amber);font-family:Georgia}.field-note h3{margin:0}.field-note p{margin:.3rem 0;color:#63707a}.field-questions details{padding:16px 0;border-top:1px solid var(--line)}summary{font-weight:900}.manual-head{background:var(--steel);color:white;padding:66px 24px}.manual-head>div{max-width:var(--max);margin:auto}.manual-head h1{font-size:clamp(2.4rem,5vw,4.7rem);margin:.5rem 0}.manual-head p{max-width:52rem;color:#c6d1d9}.manual-copy{max-width:880px;margin:auto;padding:56px 24px 90px}.manual-copy h2{font-size:1.85rem;margin-top:2.2rem}.manual-copy p,.manual-copy li{color:#3d4b56}.privacy-flag{border-left:5px solid var(--amber);background:#fff0d9;padding:18px 20px;margin:1.5rem 0}.copy-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:40px;border-top:1px solid var(--line);padding-top:20px}.copy-nav a{min-height:48px;display:flex;align-items:center;font-weight:800;text-decoration:underline}.lost-route{min-height:70vh;display:grid;place-items:center;text-align:center}.lost-route strong{font:900 6rem Georgia;color:var(--amber)}footer{background:#060b12;color:#c5d0d8;padding:48px 24px}.end-grid{max-width:var(--max);margin:auto;display:grid;grid-template-columns:1fr 1fr;gap:40px}.boundary-note{font-size:.82rem;color:#7f909c}@media(max-width:760px){.topbar nav{display:none}.nav-toggle{display:block}.stage-grid{grid-template-columns:1fr}.stage-copy{padding:48px 24px}.config-stage img{height:320px}.identity-ribbon{grid-template-columns:1fr;margin:0}.identity-ribbon article,.device-sleeves article{border-right:0;border-bottom:1px solid var(--line)}.workzone{padding:58px 22px}.device-sleeves,.ledger-split,.end-grid{grid-template-columns:1fr}.config-step{grid-template-columns:65px 1fr}.config-step strong{display:none}.state-row{grid-template-columns:65px 1fr}.state-row span{display:none}.field-note{grid-template-columns:55px 1fr}.field-note>span{display:none}.copy-nav{grid-template-columns:1fr}.manual-copy a{display:inline-block}}