:root{--ink:#17211f;--muted:#68736e;--paper:#f2efe8;--surface:#fffdf8;--line:#d1d4cc;--teal:#116c63;--dark:#123c38;--lime:#ddff63;--orange:#df754b;--purple:#725bad;--shadow:0 22px 70px rgba(23,33,31,.1)}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:linear-gradient(rgba(23,33,31,.035) 1px,transparent 1px),var(--paper);background-size:100% 32px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif}button{font:inherit;color:inherit}.topbar,main,footer{width:min(1420px,calc(100% - 48px));margin:auto}.topbar{display:flex;align-items:center;justify-content:space-between;padding:22px 0;border-bottom:1px solid var(--line);font-size:11px}.topbar>div{display:flex;gap:20px;color:var(--muted)}.topbar a{color:var(--teal);font-weight:800}.brand{display:flex;align-items:center;gap:10px;color:var(--ink)!important;text-decoration:none}.brand b{display:grid;width:34px;height:34px;place-items:center;color:#fff;background:var(--dark);border-radius:50%;font-family:Georgia,serif}.eyebrow,.panel-head p{margin:0 0 13px;color:var(--teal);font-size:10px;font-weight:900;letter-spacing:.17em}.intro{display:grid;grid-template-columns:1.4fr .6fr;align-items:end;gap:90px;padding:80px 0 45px}.intro h1{margin:0;font-family:Georgia,"Noto Serif SC",serif;font-size:clamp(52px,7vw,100px);font-weight:500;letter-spacing:-.065em;line-height:.95}.intro h1 em{color:var(--teal);font-style:normal}.intro>div>p:last-child{max-width:750px;margin:24px 0 0;color:var(--muted);font-size:17px;line-height:1.7}.intro aside{padding:23px;color:#fff;background:var(--dark);border-radius:20px}.intro aside strong{display:inline-block;padding:5px 8px;color:var(--ink);background:var(--lime);border-radius:99px;font-size:10px}.intro aside p{margin:14px 0 0;color:rgba(255,255,255,.68);font-size:12px;line-height:1.75}.lens-nav{position:sticky;top:0;z-index:10;display:grid;grid-template-columns:repeat(3,1fr);overflow:hidden;background:var(--line);border:1px solid var(--line);border-radius:16px 16px 0 0;box-shadow:var(--shadow)}.lens-button{padding:17px 20px;text-align:left;background:rgba(255,253,248,.98);border:0;cursor:pointer}.lens-button+button{border-left:1px solid var(--line)}.lens-button strong,.lens-button small{display:block}.lens-button small{margin-top:4px;color:var(--muted);font-size:10px}.lens-button.is-active{color:#fff;background:var(--dark)}.lens-button.is-active small{color:rgba(255,255,255,.6)}.stage{min-height:680px;padding:clamp(34px,5vw,66px);background:rgba(255,253,248,.97);border:solid var(--line);border-width:0 1px 1px;border-radius:0 0 24px 24px;box-shadow:var(--shadow)}.panel[hidden]{display:none}.panel-head{display:grid;grid-template-columns:1fr minmax(280px,.55fr);align-items:end;gap:50px;margin-bottom:38px}.panel-head h2{margin:0;font-family:Georgia,"Noto Serif SC",serif;font-size:clamp(30px,3.5vw,48px);font-weight:500;letter-spacing:-.04em}.panel-head>span{color:var(--muted);font-size:12px;line-height:1.7}.stream-legend{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:25px}.stream-legend span{display:flex;align-items:center;gap:6px;padding:5px 8px;background:#eef0eb;border-radius:99px;font-size:9px}.stream-legend i{width:8px;height:8px;border-radius:50%;background:var(--color)}.chapter-rail{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-bottom:20px}.chapter-button{min-height:115px;padding:13px;text-align:left;background:#eef0eb;border:1px solid transparent;border-radius:12px;cursor:pointer}.chapter-button small{display:block;margin-bottom:22px;color:var(--muted);font-size:8px}.chapter-button strong{font-size:11px;line-height:1.45}.chapter-button.is-active{color:#fff;background:var(--dark)}.chapter-button.is-active small{color:var(--lime)}.chapter-detail{display:grid;grid-template-columns:.7fr 1.3fr;overflow:hidden;border:1px solid var(--line);border-radius:18px}.chapter-copy{padding:32px;color:#fff;background:var(--purple)}.chapter-copy span{color:var(--lime);font-size:9px;font-weight:900}.chapter-copy h3{margin:14px 0;font-family:Georgia,"Noto Serif SC",serif;font-size:34px;font-weight:500}.chapter-copy p{color:rgba(255,255,255,.75);font-size:12px;line-height:1.75}.chapter-body{display:grid;align-content:center;gap:16px;padding:30px}.chapter-body section{padding:17px;background:#f0f1ec;border-radius:12px}.chapter-body strong{display:block;margin-bottom:8px;color:var(--teal);font-size:9px}.chapter-body p{margin:0;color:var(--muted);font-size:12px;line-height:1.7}.actor-tags{display:flex;flex-wrap:wrap;gap:7px}.actor-tags span{padding:6px 9px;background:#fff;border:1px solid var(--line);border-radius:99px;font-size:9px}.hub-tabs,.mode-tabs{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:18px}.hub-button,.mode-button{padding:9px 12px;background:#eef0eb;border:1px solid transparent;border-radius:99px;cursor:pointer;font-size:10px}.hub-button.is-active,.mode-button.is-active{color:#fff;background:var(--dark)}.people-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}.flow-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;max-height:500px;overflow:auto;padding-right:4px}.flow-button{padding:14px;text-align:left;background:#f0f1ec;border:1px solid transparent;border-radius:12px;cursor:pointer}.flow-button strong,.flow-button span{display:block}.flow-button strong{font-size:12px}.flow-button span{margin-top:5px;color:var(--muted);font-size:9px}.flow-button.is-active{border-color:var(--teal);background:#e3efea}.flow-detail{display:flex;flex-direction:column;justify-content:space-between;padding:30px;color:#fff;background:var(--dark);border-radius:18px}.flow-detail>span{color:var(--lime);font-size:9px;font-weight:900}.flow-detail h3{margin:15px 0 5px;font-family:Georgia,"Noto Serif SC",serif;font-size:38px;font-weight:500}.flow-detail h4{margin:0;color:rgba(255,255,255,.65);font-size:12px;font-weight:500}.flow-detail p{font-size:11px;line-height:1.75}.flow-detail .signal{padding-top:18px;color:rgba(255,255,255,.7);border-top:1px solid rgba(255,255,255,.15)}.mode-detail{display:grid;grid-template-columns:.7fr 1.3fr;margin-bottom:18px;overflow:hidden;border:1px solid var(--line);border-radius:16px}.mode-detail div:first-child{padding:28px;color:#fff;background:var(--orange)}.mode-detail div:last-child{padding:28px}.mode-detail h3{margin:0 0 10px;font-family:Georgia,"Noto Serif SC",serif;font-size:29px;font-weight:500}.mode-detail p{margin:0;color:var(--muted);font-size:11px;line-height:1.75}.mode-detail div:first-child p{color:rgba(255,255,255,.8)}.boundary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.boundary{padding:20px;background:#eef0eb;border-radius:14px}.boundary h3{margin:0 0 18px;font-size:14px}.boundary strong{display:block;margin:12px 0 5px;color:var(--teal);font-size:9px}.boundary strong.no{color:var(--orange)}.boundary p{margin:0;color:var(--muted);font-size:10px;line-height:1.6}.unknowns{display:grid;grid-template-columns:.35fr 1.65fr;gap:30px;padding:90px 0}.unknowns>div{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.unknowns span{padding:18px;background:var(--surface);border:1px solid var(--line);border-radius:12px;font-size:11px;line-height:1.65}footer{display:flex;justify-content:space-between;gap:20px;padding:24px 0 34px;color:var(--muted);border-top:1px solid var(--line);font-size:10px}footer p{margin:0}footer a{color:var(--teal);font-weight:800}@media(max-width:900px){.intro,.panel-head,.people-layout{grid-template-columns:1fr}.intro{gap:30px}.chapter-rail{grid-template-columns:repeat(3,1fr)}.boundary-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:650px){.topbar,main,footer{width:calc(100% - 28px)}.topbar>div>span,.brand span{display:none}.intro h1{font-size:52px}.lens-button{padding:13px 10px}.lens-button small{display:none}.stage{padding:24px 18px}.chapter-rail,.chapter-detail,.mode-detail,.unknowns,.unknowns>div{grid-template-columns:1fr}.flow-list{grid-template-columns:1fr;max-height:none}.boundary-grid{grid-template-columns:1fr}footer{flex-direction:column}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}