:root{--navy:#102a43;--blue:#2f80ed;--teal:#00a6a6;--orange:#f2994a;--purple:#8064a2;--sky:#56ccf2;--ink:#17324d;--muted:#62788f;--line:rgba(16,42,67,.14);--glass:rgba(255,255,255,.78);--shadow:0 22px 70px rgba(44,91,130,.14)}
*{box-sizing:border-box}html{scroll-behavior:smooth;background:#eaf6ff}body{margin:0;color:var(--navy);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,#eaf6ff 0%,#f8fbfd 48%,#eaf4fb 100%);overflow-x:hidden}button{font:inherit}#scene{position:fixed;inset:0;width:100%;height:100%;display:block;z-index:0;outline:none}.atmosphere{position:fixed;inset:0;z-index:1;pointer-events:none;background:radial-gradient(ellipse at 68% 21%,rgba(255,255,255,.66),transparent 42%),linear-gradient(180deg,rgba(232,246,255,.10),rgba(255,255,255,.10))}.grain{position:fixed;inset:0;z-index:3;pointer-events:none;opacity:.055;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' 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8px}.scene-caption{position:fixed;z-index:4;left:4.2vw;bottom:32px;display:flex;align-items:center;gap:10px;font-size:8px;letter-spacing:.16em;color:rgba(16,42,67,.48);pointer-events:none}.caption-line{display:block;width:28px;height:1px;background:var(--teal)}.progress-rail{position:fixed;z-index:12;right:27px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:13px}.rail-dot{width:8px;height:8px;padding:0;border:1px solid rgba(16,42,67,.42);border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer;transition:all .3s}.rail-dot.is-active{height:25px;border-radius:6px;background:var(--teal);border-color:var(--teal);box-shadow:0 0 0 4px rgba(0,166,166,.12)}.rail-dot:hover{background:var(--navy);border-color:var(--navy)}.scroll-note{position:fixed;z-index:8;right:4.2vw;bottom:29px;display:flex;align-items:center;gap:10px;font-size:10px;color:var(--muted);letter-spacing:.12em;pointer-events:none}.scroll-wheel{display:inline-block;width:15px;height:23px;border:1px solid var(--muted);border-radius:10px;position:relative}.scroll-wheel:after{content:"";position:absolute;left:6px;top:4px;width:2px;height:5px;border-radius:2px;background:var(--teal);animation:wheel 1.7s infinite}.scene-status{position:fixed;z-index:8;right:4.2vw;top:92px;font-size:9px;letter-spacing:.13em;color:var(--muted);pointer-events:none}.panel{position:relative;z-index:2;min-height:100vh;min-height:100svh;pointer-events:none}.panel>*{pointer-events:auto}.intro-copy{position:absolute;left:7vw;top:23vh;max-width:520px}.eyebrow{margin:0 0 18px;font-size:10px;letter-spacing:.20em;color:var(--teal);font-weight:700}.intro h1,.final h2{font-size:clamp(48px,5.3vw,94px);line-height:1.04;letter-spacing:-.065em;margin:0 0 26px;font-weight:700}.intro h1 em,.final h2 em,.stage-copy h2 em{font-style:normal;color:var(--teal)}.lede{font-size:17px;line-height:1.75;color:var(--muted);margin:0 0 32px}.hero-metrics{display:flex;gap:38px;margin:0 0 18px}.hero-metrics div{display:flex;flex-direction:column;gap:6px}.hero-metrics strong{font-size:27px;letter-spacing:-.04em}.hero-metrics span{font-size:10px;color:var(--muted);letter-spacing:.08em}.micro-note{font-size:10px;color:var(--muted);letter-spacing:.04em}.intro-side{position:absolute;right:11vw;top:30vh;width:190px;color:var(--muted);font-size:12px;line-height:1.8;text-align:center}.intro-side p{position:relative;z-index:1;margin:65px 0 15px;color:var(--navy)}.intro-side strong{color:var(--teal);font-weight:600}.intro-side span{font-size:10px}.orbit-ring{position:absolute;top:0;left:50%;width:160px;height:160px;transform:translateX(-50%) rotate(-24deg);border:1px solid rgba(0,166,166,.35);border-radius:50%;box-shadow:0 0 0 20px rgba(0,166,166,.035),0 0 0 42px rgba(0,166,166,.025)}.orbit-ring:after{content:"";position:absolute;width:9px;height:9px;top:12px;left:25px;border-radius:50%;background:var(--orange);box-shadow:0 0 22px rgba(242,153,74,.8)}.intro-bottom{position:absolute;left:7vw;right:7vw;bottom:76px;display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:10px;letter-spacing:.1em}.intro-bottom b{color:var(--teal);font-size:18px;margin-left:10px}.stage-copy{position:absolute;right:8.5vw;top:50%;transform:translateY(-50%);width:355px;padding:28px 29px 24px;background:var(--glass);border:1px solid rgba(255,255,255,.9);border-top:3px solid var(--teal);box-shadow:var(--shadow);backdrop-filter:blur(18px);border-radius:5px;opacity:.35;transition:opacity .55s,transform .55s}.stage-panel.is-active .stage-copy{opacity:1;transform:translateY(-50%) translateX(-8px)}.stage-copy .eyebrow{font-size:9px;margin-bottom:15px}.stage-copy h2{font-size:43px;line-height:1.08;letter-spacing:-.06em;margin:0 0 18px}.stage-desc{font-size:12px;line-height:1.7;color:var(--muted);min-height:41px;margin:0 0 20px}.stage-number{border-top:1px solid var(--line);padding-top:16px;display:flex;flex-direction:column;gap:5px}.stage-number span,.stage-facts span{font-size:10px;color:var(--muted);letter-spacing:.05em}.stage-number strong{font-size:32px;letter-spacing:-.05em}.stage-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:18px}.stage-facts div{display:flex;flex-direction:column;gap:5px}.stage-facts b{font-size:17px}.stage-source{font-size:8px;line-height:1.45;color:var(--muted);margin:21px 0 0;border-top:1px solid var(--line);padding-top:12px}.stage-tag{position:absolute;left:7vw;bottom:15vh;font-size:10px;letter-spacing:.18em;color:var(--muted);opacity:.55}.stage-tag span{color:var(--teal);margin-left:13px}.stage-panel.is-active .stage-tag{opacity:1}.final{min-height:115vh;padding:15vh 7vw 12vh}.final-head{max-width:400px}.final h2{font-size:clamp(43px,4.3vw,72px);margin-bottom:18px}.final-head>p:last-child{color:var(--muted);font-size:13px;line-height:1.7}.overall-grid{position:absolute;right:7vw;top:17vh;width:52%;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.overall-card{padding:19px 17px 16px;background:rgba(255,255,255,.77);border:1px solid rgba(255,255,255,.95);border-top:2px solid var(--teal);box-shadow:0 10px 30px rgba(44,91,130,.08);border-radius:4px}.overall-card span{display:block;color:var(--muted);font-size:10px;margin-bottom:12px}.overall-card strong{display:block;font-size:22px;letter-spacing:-.04em;white-space:nowrap}.scenario-head{position:absolute;left:7vw;right:7vw;bottom:31vh;border-top:1px solid var(--line);padding-top:17px;display:flex;justify-content:space-between;align-items:baseline;font-size:12px;font-weight:700;letter-spacing:.08em}.scenario-head small{font-size:10px;color:var(--muted);font-weight:400;letter-spacing:0}.scenario-grid{position:absolute;left:7vw;right:7vw;bottom:15vh;display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.scenario-card{background:rgba(255,255,255,.83);border:1px solid var(--line);border-radius:4px;padding:17px 17px 14px;box-shadow:0 10px 26px rgba(44,91,130,.07)}.scenario-card h3{font-size:11px;margin:0 0 13px;color:var(--muted);font-weight:600}.scenario-ratio{font-size:31px;letter-spacing:-.06em;margin-bottom:12px}.scenario-card p{font-size:10px;color:var(--muted);margin:5px 0;line-height:1.45}.scenario-card p b{color:var(--navy);font-weight:600}.final-note{position:absolute;left:7vw;right:7vw;bottom:8.2vh;color:var(--muted);font-size:9px;line-height:1.5}.final-sources{position:absolute;left:7vw;right:7vw;bottom:4.3vh;color:rgba(98,120,143,.85);font-size:8px}.final .intro-bottom{bottom:1.5vh;font-size:9px}.final .intro-bottom button{border:0;background:none;color:var(--teal);cursor:pointer;font-size:10px;letter-spacing:.06em}.fallback{position:fixed;z-index:20;left:50%;top:18px;transform:translateX(-50%);padding:10px 18px;background:#fff4d6;border:1px solid #e8c46a;border-radius:4px;font-size:12px;box-shadow:var(--shadow)}.fallback h2{font-size:13px;margin:0 0 4px}.fallback p{margin:0}.noscript{position:fixed;inset:0;z-index:50;background:#eaf6ff;padding:20vh 10vw;font-size:20px;color:var(--navy)}@keyframes wheel{0%{transform:translateY(0);opacity:1}70%{transform:translateY(7px);opacity:.1}100%{transform:translateY(0);opacity:0}}
@media (max-width:1100px){.intro-side{right:7vw}.stage-copy{right:7vw;width:320px}.overall-grid{width:55%;gap:8px}.overall-card{padding:15px 12px}.overall-card strong{font-size:18px}.scenario-card{padding:13px}.scenario-ratio{font-size:26px}}
@media (max-width:700px){.topbar{height:58px;padding:0 5vw}.brand{font-size:10px;gap:7px}.brand-sub,.brand-divider,.asof{display:none}.scene-status{top:70px;right:5vw;font-size:8px}.progress-rail{right:13px;gap:10px}.rail-dot{width:6px;height:6px}.rail-dot.is-active{height:19px}.scene-caption{display:none}.scroll-note{right:5vw;bottom:18px;font-size:8px}.intro-copy{left:7vw;right:10vw;top:17vh}.eyebrow{font-size:8px;margin-bottom:14px}.intro h1{font-size:53px;margin-bottom:20px}.lede{font-size:13px;line-height:1.75;margin-bottom:25px}.hero-metrics{gap:24px}.hero-metrics strong{font-size:22px}.hero-metrics span{font-size:9px}.micro-note{font-size:8px;line-height:1.6}.intro-side{display:none}.intro-bottom{left:7vw;right:9vw;bottom:54px;font-size:8px}.stage-copy{left:6vw;right:9vw;top:auto;bottom:7vh;transform:none;width:auto;padding:19px 20px 15px;max-height:44vh;overflow:auto;border-top-width:2px}.stage-panel.is-active .stage-copy{transform:none}.stage-copy .eyebrow{margin-bottom:10px}.stage-copy h2{font-size:32px;margin-bottom:11px}.stage-desc{font-size:10px;line-height:1.55;min-height:0;margin-bottom:12px}.stage-number{padding-top:10px}.stage-number strong{font-size:26px}.stage-facts{margin-top:11px;gap:9px}.stage-facts span{font-size:8px}.stage-facts b{font-size:14px}.stage-source{font-size:7px;margin-top:12px;padding-top:8px}.stage-tag{top:14vh;bottom:auto;left:7vw;font-size:8px}.final{min-height:150vh;padding:13vh 7vw 10vh}.final-head{max-width:none}.final h2{font-size:47px;margin-bottom:15px}.final-head>p:last-child{font-size:11px}.overall-grid{position:static;width:100%;margin-top:25px;grid-template-columns:repeat(2,1fr);gap:8px}.overall-card{padding:13px 11px}.overall-card span{font-size:8px;margin-bottom:9px}.overall-card strong{font-size:16px}.scenario-head{position:static;margin-top:28px;padding-top:14px;display:block;font-size:10px}.scenario-head small{display:block;margin-top:7px;font-size:8px}.scenario-grid{position:static;margin-top:12px;grid-template-columns:repeat(2,1fr);gap:8px}.scenario-card{padding:12px 10px}.scenario-card h3{font-size:9px;margin-bottom:9px}.scenario-ratio{font-size:25px;margin-bottom:8px}.scenario-card p{font-size:8px}.final-note{position:static;margin-top:16px;font-size:8px}.final-sources{position:static;margin-top:10px;font-size:7px;line-height:1.5}.final .intro-bottom{position:static;margin-top:25px;font-size:8px}.final .intro-bottom button{font-size:8px}.fallback{width:90%;font-size:10px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.rail-dot,.stage-copy{transition:none}.scroll-wheel:after{animation:none}}