:root{
  --ink:#0B2545;
  --ink-2:#223B57;
  --muted:#5B6B7C;
  --muted-2:#7B8DA1;
  --teal:#0E7C7B;
  --teal-2:#13A89E;
  --gold:#D99A00;
  --red:#C0392B;
  --mist:#EAF6FF;
  --line:rgba(11,37,69,.10);
  --glass:rgba(255,255,255,.78);
  --shadow:0 30px 80px rgba(11,37,69,.14);
  --accent:#0E7C7B;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--mist);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-feature-settings:"tnum" 1,"lnum" 1;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
button{font-family:inherit}
#stage{position:fixed;inset:0;z-index:2;overflow:hidden}
#scene{position:absolute;inset:0;width:100%;height:100%;display:block}
.sky-wash{
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,#6FA9DF 0%,#B9DDF5 42%,#EDF8FF 72%,#FBFDFF 100%);
}
.vignette{
  position:absolute;inset:0;pointer-events:none;z-index:3;
  background:linear-gradient(180deg,rgba(234,246,255,.85) 0%,rgba(234,246,255,0) 13%),radial-gradient(ellipse at 50% 46%,rgba(255,255,255,0) 38%,rgba(11,37,69,.10) 100%);
}
.sun-flare{
  position:absolute;right:4%;top:0;width:480px;height:480px;pointer-events:none;z-index:3;
  background:
    radial-gradient(circle at 50% 50%,rgba(255,252,236,.95) 0%,rgba(255,246,210,.55) 11%,rgba(255,234,180,.16) 30%,rgba(255,255,255,0) 62%),
    radial-gradient(circle at 50% 50%,rgba(255,255,255,.35) 0%,rgba(255,255,255,0) 40%);
  filter:blur(2px);
  mix-blend-mode:screen;
  opacity:.55;
}
#scroll-space{height:700vh;position:relative;z-index:1}

/* top bar */
.topbar{
  position:absolute;left:0;right:0;top:0;z-index:28;
  display:flex;align-items:center;justify-content:space-between;
  padding:26px 38px;
  pointer-events:none;
}
.brand{display:flex;align-items:center;gap:11px;font-size:10px;font-weight:700;letter-spacing:.22em;color:rgba(11,37,69,.78)}
.brand-mark{
  width:17px;height:17px;border-radius:50%;
  border:1.5px solid rgba(11,37,69,.65);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;left:5px;top:5px;width:5px;height:5px;border-radius:50%;
  background:var(--teal);
}
.top-meta{display:flex;align-items:center;gap:14px;font-size:9px;letter-spacing:.2em;color:rgba(11,37,69,.56)}
.top-meta .sep{width:34px;height:1px;background:rgba(11,37,69,.22)}

/* intro */
.intro{
  position:absolute;inset:0;z-index:25;
  display:flex;align-items:center;
  padding:0 0 0 7vw;
  pointer-events:none;
  transition:opacity .9s cubic-bezier(.22,1,.36,1),transform .9s cubic-bezier(.22,1,.36,1);
}
.intro.hidden{opacity:0;transform:translateY(-14px);pointer-events:none}
.intro-inner{max-width:760px;position:relative}
.eyebrow{
  font-size:10px;font-weight:700;letter-spacing:.24em;color:var(--teal);
  text-transform:uppercase;
}
.intro h1{
  margin:16px 0 20px;
  font-size:clamp(48px,6.6vw,94px);
  line-height:.96;
  letter-spacing:-.055em;
  font-weight:800;
  color:var(--ink);
}
.intro h1 em{
  font-style:normal;color:var(--teal);
  box-shadow:inset 0 -0.12em 0 rgba(217,154,0,.28);
}
.intro-sub{
  max-width:440px;margin:0 0 30px;
  font-size:15px;line-height:1.75;color:#38506b;letter-spacing:.01em;
}
.start{
  pointer-events:auto;display:inline-flex;align-items:center;gap:12px;
  padding:14px 22px;border-radius:999px;border:1px solid rgba(11,37,69,.55);
  background:rgba(255,255,255,.22);color:var(--ink);
  font-size:11px;font-weight:700;letter-spacing:.18em;cursor:pointer;
  transition:background .35s ease,color .35s ease,transform .35s ease,border-color .35s ease;
  backdrop-filter:blur(8px);
}
.start span{font-size:14px;transition:transform .35s ease}
.start:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-2px)}
.start:hover span{transform:translateY(4px)}
.intro-meta{margin-top:34px;font-size:9px;letter-spacing:.24em;color:var(--muted-2)}
.intro-rail{
  position:absolute;right:8vw;bottom:10vh;display:flex;flex-direction:column;align-items:center;gap:10px;
  font-size:9px;letter-spacing:.18em;color:rgba(11,37,69,.45);
}
.intro-rail i{display:block;width:1px;height:80px;background:linear-gradient(180deg,rgba(11,37,69,.35),rgba(11,37,69,0))}

/* panel */
.panel{
  position:absolute;right:38px;top:50%;z-index:30;
  width:370px;max-height:78vh;overflow:auto;
  transform:translateY(-50%);
  padding:24px 24px 20px;
  border-radius:20px;
  border:1px solid rgba(11,37,69,.08);
  background:linear-gradient(165deg,rgba(255,255,255,.91),rgba(255,255,255,.72));
  box-shadow:var(--shadow);
  backdrop-filter:blur(20px) saturate(1.1);
  transition:opacity .45s ease,transform .45s ease;
  scrollbar-width:none;
}
.panel::-webkit-scrollbar{display:none}
.panel.is-hidden{opacity:0;transform:translateY(-50%) translateX(24px);pointer-events:none}
.panel-head{display:flex;align-items:baseline;gap:8px}
.panel-index{font-size:42px;font-weight:800;line-height:1;letter-spacing:-.06em;color:var(--accent)}
.panel-total{font-size:11px;letter-spacing:.1em;color:var(--muted-2)}
.panel-tag{
  margin-left:auto;padding:5px 9px;border-radius:999px;
  background:rgba(14,124,123,.09);color:var(--accent);
  font-size:8px;font-weight:700;letter-spacing:.16em;
}
.panel h2{
  margin:12px 0 8px;font-size:23px;line-height:1.16;letter-spacing:-.035em;color:var(--ink);
}
.panel-desc{margin:0;font-size:11.5px;line-height:1.68;color:#41566e;min-height:58px}
.panel-stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0 14px}
.stat{padding:10px 11px;border-radius:12px;background:rgba(255,255,255,.6);border:1px solid rgba(11,37,69,.06)}
.stat span{display:block;font-size:8px;font-weight:700;letter-spacing:.12em;color:var(--muted-2);text-transform:uppercase}
.stat strong{display:block;margin-top:4px;font-size:19px;line-height:1.05;letter-spacing:-.03em;color:var(--ink)}
.stat small{display:block;margin-top:3px;font-size:8.5px;color:var(--muted-2)}
.stat strong.neg{color:var(--red)}
.panel-bar{height:5px;border-radius:99px;background:#e6eef4;overflow:hidden}
.panel-bar i{display:block;height:100%;width:100%;border-radius:99px;background:var(--accent);transition:width .7s cubic-bezier(.22,1,.36,1),background .5s ease}
.panel-foot{display:flex;justify-content:space-between;gap:12px;margin-top:12px;font-size:9px;color:var(--muted);letter-spacing:.03em}
.panel-foot #panel-growth{font-weight:700;color:var(--accent);white-space:nowrap}
.panel.swap{animation:panelIn .45s cubic-bezier(.22,1,.36,1)}
@keyframes panelIn{from{opacity:.35;transform:translateY(6px)}to{opacity:1;transform:none}}

/* stage mark */
.stage-mark{
  position:absolute;left:5.2%;top:50%;z-index:15;
  transform:translateY(-50%);pointer-events:none;
  transition:opacity .45s ease,transform .45s ease;
}
.stage-mark.is-hidden{opacity:0;transform:translateY(-50%) translateX(-10px)}
.stage-mark .num{
  display:block;font-size:clamp(96px,10vw,164px);line-height:.78;font-weight:800;letter-spacing:-.09em;
  color:transparent;-webkit-text-stroke:1px rgba(11,37,69,.20);
}
.stage-mark .name{
  display:block;margin-top:14px;font-size:9px;font-weight:700;letter-spacing:.28em;color:rgba(11,37,69,.46);
}
.stage-mark .line{display:block;width:1px;height:74px;margin-top:18px;background:linear-gradient(180deg,rgba(11,37,69,.30),rgba(11,37,69,0))}

/* rail */
.rail{
  position:absolute;left:32px;top:50%;z-index:26;
  transform:translateY(-50%);
  display:flex;flex-direction:column;gap:11px;
  transition:opacity .4s ease;
}
.rail.is-hidden{opacity:0;pointer-events:none}
.rail-item{
  display:flex;align-items:center;gap:10px;
  padding:3px 2px;border:0;background:none;cursor:pointer;color:var(--muted);
}
.rail-item .dot{
  width:8px;height:8px;border-radius:50%;
  border:1px solid rgba(11,37,69,.3);background:rgba(255,255,255,.5);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease,transform .3s ease;
}
.rail-item .label{
  font-size:9px;letter-spacing:.12em;white-space:nowrap;
  opacity:0;transform:translateX(-5px);transition:opacity .3s ease,transform .3s ease,color .3s ease;
}
.rail-item:hover .label,.rail-item.active .label{opacity:1;transform:none;color:var(--ink)}
.rail-item.active .dot{background:var(--accent);border-color:var(--accent);box-shadow:0 0 0 4px rgba(14,124,123,.14);transform:scale(1.15)}
.rail-item.rail-final .dot{border-color:rgba(217,154,0,.7)}
.rail-item.rail-final.active .dot{background:var(--gold);box-shadow:0 0 0 4px rgba(217,154,0,.16)}

/* hint */
.hint{
  position:absolute;left:50%;bottom:28px;z-index:24;
  transform:translateX(-50%);
  display:flex;align-items:center;gap:12px;
  font-size:9px;letter-spacing:.2em;color:rgba(11,37,69,.55);
  transition:opacity .4s ease,transform .4s ease;
}
.hint.is-hidden{opacity:0;transform:translateX(-50%) translateY(8px)}
.mouse{
  width:17px;height:27px;border:1px solid rgba(11,37,69,.45);border-radius:10px;
  position:relative;display:inline-block;
}
.mouse i{
  position:absolute;left:50%;top:6px;width:3px;height:6px;border-radius:2px;background:var(--teal);
  transform:translateX(-50%);animation:mouseDot 1.8s ease-in-out infinite;
}
@keyframes mouseDot{0%,100%{opacity:.2;transform:translate(-50%,0)}45%{opacity:1;transform:translate(-50%,7px)}}

/* final */
.final{
  position:absolute;inset:0;z-index:40;
  display:flex;align-items:center;
  padding:4vh 0 4vh 5vw;
  background:linear-gradient(90deg,rgba(247,251,255,.985) 0%,rgba(247,251,255,.985) 42%,rgba(247,251,255,.92) 48%,rgba(247,251,255,.35) 55%,rgba(247,251,255,0) 62%);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .8s cubic-bezier(.22,1,.36,1),visibility .8s;
}
.final.show{opacity:1;visibility:visible;pointer-events:auto}
.final-panel{position:relative;z-index:2}
.final-mode .topbar{opacity:0}
.final-panel{
  width:min(780px,58vw);max-height:92vh;overflow:auto;padding-right:12px;
  scrollbar-width:thin;scrollbar-color:rgba(11,37,69,.2) transparent;
}
.final-panel::-webkit-scrollbar{width:4px}
.final-panel::-webkit-scrollbar-thumb{background:rgba(11,37,69,.16);border-radius:4px}
.final-top{display:flex;align-items:center;justify-content:space-between;gap:20px}
.final-close{font-size:9px;letter-spacing:.16em;color:var(--muted-2)}
.final h2{
  margin:14px 0 18px;font-size:34px;line-height:1.14;letter-spacing:-.045em;color:var(--ink);font-weight:800;
}
.final h2 span{color:var(--teal)}
.final-map{margin:-8px 0 14px;font-size:8.5px;letter-spacing:.06em;color:var(--muted-2)}
.final-kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.fk{
  padding:12px 13px;border-radius:13px;background:rgba(255,255,255,.72);
  border:1px solid rgba(11,37,69,.07);box-shadow:0 8px 24px rgba(11,37,69,.05);
}
.fk span{display:block;font-size:8px;font-weight:700;letter-spacing:.12em;color:var(--muted-2);text-transform:uppercase}
.fk strong{display:block;margin-top:5px;font-size:20px;line-height:1;letter-spacing:-.035em;color:var(--ink)}
.fk strong.neg{color:var(--red)}
.fk small{display:block;margin-top:5px;font-size:8.5px;color:var(--muted-2)}
.final-split{display:grid;grid-template-columns:1.18fr .82fr;gap:22px;margin-top:18px}
.final h3{margin:0 0 10px;font-size:11px;letter-spacing:.06em;color:var(--ink)}
.final h3 span{font-size:8px;letter-spacing:.14em;color:var(--muted-2);margin-left:6px}
.scenario-bars{display:flex;flex-direction:column;gap:7px}
.scenario{display:grid;grid-template-columns:112px 1fr 40px;align-items:center;gap:9px}
.s-name{font-size:9px;color:var(--ink-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.s-track{display:block;height:8px;border-radius:99px;background:rgba(11,37,69,.07);overflow:hidden;position:relative}
.s-fill{display:block;height:100%;border-radius:99px;background:var(--teal);transition:width .8s cubic-bezier(.22,1,.36,1)}
.s-val{font-size:9.5px;font-weight:700;color:var(--ink);text-align:right}
.scenario.base .s-fill{background:var(--gold)}
.scenario-note{margin:9px 0 0;font-size:8.5px;line-height:1.5;color:var(--muted-2)}
.base-ratio{
  padding:14px 16px;border-radius:14px;background:var(--ink);color:#fff;
}
.base-ratio span{display:block;font-size:8px;letter-spacing:.16em;color:rgba(255,255,255,.6);text-transform:uppercase}
.base-ratio strong{display:block;margin:5px 0 2px;font-size:34px;line-height:1;letter-spacing:-.05em;color:#fff}
.base-ratio small{display:block;font-size:8.5px;color:rgba(255,255,255,.58)}
.own-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:8px}
.own-grid div{padding:8px 9px;border-radius:10px;background:rgba(255,255,255,.66);border:1px solid rgba(11,37,69,.06)}
.own-grid span{display:block;font-size:7.5px;letter-spacing:.08em;color:var(--muted-2)}
.own-grid b{display:block;margin-top:3px;font-size:13px;letter-spacing:-.02em;color:var(--ink)}
.reset{
  margin-top:10px;width:100%;padding:10px 14px;border-radius:999px;border:1px solid rgba(11,37,69,.2);
  background:transparent;color:var(--ink);font-size:9px;font-weight:700;letter-spacing:.16em;cursor:pointer;
  transition:background .3s ease,color .3s ease;
}
.reset:hover{background:var(--ink);color:#fff}
.final-foot{margin-top:14px;font-size:7.8px;line-height:1.55;color:var(--muted-2);letter-spacing:.01em}

/* loader */
.loader{
  position:fixed;inset:0;z-index:100;background:#f3fbff;
  display:flex;align-items:center;justify-content:center;
  transition:opacity .8s ease,visibility .8s;
}
.loader.done{opacity:0;visibility:hidden;pointer-events:none}
.loader-inner{display:flex;flex-direction:column;align-items:center;gap:16px}
.loader-ring{
  width:42px;height:42px;border-radius:50%;
  border:1px solid rgba(14,124,123,.18);border-top-color:var(--teal);
  animation:spin 1.1s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.loader-label{font-size:9px;letter-spacing:.26em;color:var(--muted)}
.loader-bar{width:180px;height:2px;background:rgba(11,37,69,.08);overflow:hidden}
.loader-bar i{display:block;width:40%;height:100%;background:var(--teal);animation:loaderBar 1.4s ease-in-out infinite}
@keyframes loaderBar{0%{transform:translateX(-100%)}100%{transform:translateX(350%)}}

/* fallback */
.fallback{position:fixed;inset:0;z-index:110;background:#f3fbff;display:flex;align-items:center;justify-content:center;padding:24px}
.fallback[hidden]{display:none!important}
.fallback-inner{max-width:680px}
.fallback h2{font-size:30px;line-height:1.2;letter-spacing:-.03em;margin:10px 0 14px;color:var(--ink)}
.fallback p{font-size:13px;line-height:1.8;color:#38506b}
.fallback-src{font-size:10px;color:var(--muted-2)}

/* stage labels */
.stage-label{
  position:absolute;z-index:12;pointer-events:none;
  padding:5px 8px;border-radius:7px;
  background:rgba(255,255,255,.78);border:1px solid rgba(11,37,69,.08);
  box-shadow:0 6px 20px rgba(11,37,69,.08);
  font-size:8px;font-weight:700;letter-spacing:.1em;color:var(--ink);
  opacity:0;transition:opacity .35s ease;white-space:nowrap;
}
.stage-label i{font-style:normal;color:var(--accent);margin-right:5px}
.stage-label.final-label{background:rgba(255,255,255,.88);border-color:rgba(255,255,255,.5);box-shadow:0 8px 26px rgba(4,30,40,.18)}

@media (max-width:1280px){
  .panel{width:340px;right:24px}
  .intro{padding-left:6vw}
}
@media (max-width:1024px){
  .panel{width:320px;right:18px;padding:20px}
  .panel h2{font-size:21px}
  .rail{left:18px}
  .intro h1{font-size:clamp(44px,7vw,72px)}
}
@media (max-width:768px){
  .topbar{padding:16px 18px}
  .brand{font-size:8.5px;letter-spacing:.18em;gap:8px}
  .brand-mark{width:14px;height:14px}
  .brand-mark::after{left:4px;top:4px;width:4px;height:4px}
  .top-meta{font-size:8px;gap:8px}
  .top-meta span:first-child{display:none}
  .top-meta .sep{width:18px}
  .intro{padding:14vh 22px 0;align-items:flex-start}
  .intro::before{content:"";position:absolute;inset:0;z-index:0;background:linear-gradient(180deg,rgba(247,251,255,.72) 0%,rgba(247,251,255,.34) 34%,rgba(247,251,255,0) 60%);pointer-events:none}
  .intro-inner{position:relative;z-index:1}
  .intro h1{font-size:clamp(38px,11vw,54px);margin:12px 0 14px}
  .intro-sub{font-size:13px;margin-bottom:22px;max-width:320px}
  .start{padding:12px 18px;font-size:10px}
  .intro-meta{display:none}
  .intro-rail{display:none}
  .panel{
    left:12px;right:12px;bottom:10px;top:auto;width:auto;max-height:42vh;
    transform:none;padding:16px 16px 14px;border-radius:16px;
  }
  .panel.is-hidden{transform:translateY(18px)}
  .panel-index{font-size:32px}
  .panel h2{font-size:19px;margin:8px 0 6px}
  .panel-desc{display:none}
  .panel-stats{gap:7px;margin:12px 0 10px}
  .stat{padding:8px 9px}
  .stat strong{font-size:15px}
  .stat span{font-size:7px}
  .panel-foot{font-size:8px}
  .stage-mark{display:none}
  .rail{display:none}
  .rail{
    top:auto;bottom:14px;left:50%;transform:translateX(-50%);
    flex-direction:row;gap:9px;padding:7px 11px;border-radius:999px;
    background:rgba(255,255,255,.7);border:1px solid rgba(11,37,69,.08);
    backdrop-filter:blur(12px);
  }
  .rail-item{padding:2px}
  .rail-item .label{display:none}
  .rail-item .dot{width:7px;height:7px}
  .hint{display:none}
  .final{padding:14px;align-items:flex-end;background:rgba(247,251,255,.985)}
  .final::after{display:none}
  .final-panel{width:100%;max-height:92vh;padding:8px 4px 16px}
  .final h2{font-size:24px;margin:10px 0 14px}
  .final-kpis{grid-template-columns:1fr 1fr;gap:8px}
  .fk{padding:10px 11px}
  .fk strong{font-size:17px}
  .final-split{grid-template-columns:1fr;gap:14px;margin-top:14px}
  .scenario{grid-template-columns:94px 1fr 38px;gap:7px}
  .s-name{font-size:8px}
  .base-ratio strong{font-size:30px}
  .final-foot{font-size:7.2px}
  .final-close{display:none}
  .fallback h2{font-size:23px}
}
@media (max-width:420px){
  .intro h1{font-size:36px}
  .panel{max-height:50vh}
  .final h2{font-size:21px}
  .scenario{grid-template-columns:82px 1fr 36px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}