:root{
  --ink:#102a33; --muted:#5d7680; --paper:#f4f7f5; --white:#fff;
  --navy:#082f3b; --aqua:#23b7a7; --aqua-soft:#d9f4ef; --lime:#b7df62;
  --orange:#f3a63b; --red:#de5b5b; --line:#dbe5e2; --radius:14px;
}
*{box-sizing:border-box}
body{margin:0;color:var(--ink);background:var(--paper);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;line-height:1.6}
a{color:#087b75;font-weight:650}
/* sidebar */
.sidebar{position:fixed;inset:0 auto 0 0;width:240px;padding:26px 18px;color:#cfe3e3;
  background:linear-gradient(160deg,var(--navy),#061f29 85%);display:flex;flex-direction:column;gap:22px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:800;letter-spacing:.03em}
.brand .dot{width:12px;height:12px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(183,223,98,.18)}
.sidebar nav{display:flex;flex-direction:column;gap:3px}
.sidebar nav a{padding:10px 12px;border-radius:9px;color:#a9c0c2;text-decoration:none;font-size:.86rem;transition:.15s}
.sidebar nav a:hover{background:rgba(255,255,255,.07);color:#fff}
.sidebar nav a.active{background:rgba(35,183,167,.18);color:#fff;border-left:3px solid var(--aqua)}
.side-foot{margin-top:auto;font-size:.72rem;color:#6f8d90}
/* main */
.main{margin-left:240px}
.content{max-width:880px;margin:0 auto;padding:46px 40px}
.content h1{font-size:2rem;letter-spacing:-.03em;margin:.2em 0 .5em}
.content h2{font-size:1.3rem;margin:1.6em 0 .5em;padding-bottom:.3em;border-bottom:1px solid var(--line)}
.content h3{font-size:1.05rem;margin:1.3em 0 .4em}
.content p,.content li{color:#324a52}
.content img{max-width:100%;height:auto;border:1px solid var(--line);border-radius:var(--radius);margin:14px 0;background:#fff}
.content table{width:100%;border-collapse:collapse;font-size:.85rem;margin:14px 0;background:#fff;
  border:1px solid var(--line);border-radius:10px;overflow:hidden}
.content th{background:#edf3f1;color:#587078;text-align:left;padding:9px 12px;font-size:.72rem;
  text-transform:uppercase;letter-spacing:.06em}
.content td{padding:9px 12px;border-top:1px solid #edf1ef;vertical-align:top}
.content blockquote{margin:16px 0;padding:14px 18px;background:var(--aqua-soft);
  border-left:4px solid var(--aqua);border-radius:0 10px 10px 0;color:#164f52}
.content code{background:#e8efed;padding:2px 5px;border-radius:5px;font-size:.85em}
/* stat cards rendered from markdown (p with leading emoji handled inline) */
.lead{font-size:1.05rem;color:var(--muted)}
.muted{color:var(--muted)}
/* English ranking simulation */
.content.page-06-simulation{max-width:1100px}
.sim-hero{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;padding:26px;
  color:#fff;background:linear-gradient(135deg,var(--navy),#0c5960);border-radius:20px;margin:18px 0}
.sim-hero h2{border:0;margin:.25rem 0;font-size:1.55rem}.sim-hero p{color:#d8eceb;margin:.4rem 0}
.sim-kicker{font-size:.7rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--aqua)}
.sim-hero .sim-kicker{color:var(--lime)}
.sim-badge{min-width:170px;padding:18px;border:1px solid rgba(255,255,255,.22);border-radius:14px;background:rgba(255,255,255,.08);text-align:center}
.sim-badge strong,.sim-badge span{display:block}.sim-badge span{font-size:.72rem;color:#bcd6d6}
.sim-note{padding:12px 16px;border:1px solid #f2cf98;background:#fff8e8;border-radius:10px;color:#715222;font-size:.86rem}
.sim-flow{display:flex;align-items:stretch;gap:8px;margin:18px 0}.sim-step{position:relative;flex:1;min-width:0;padding:18px 12px;background:#fff;border:1px solid var(--line);border-radius:14px;text-align:center}
.sim-step strong,.sim-step small{display:block}.sim-step small{margin-top:5px;color:var(--muted);font-size:.7rem;line-height:1.35}.sim-icon{display:inline-block;margin:0 auto 8px;padding:3px 8px;border-radius:999px;background:var(--aqua-soft);color:#087b75;font-size:.62rem;font-weight:850;letter-spacing:.08em;text-transform:uppercase}
.sim-number{position:absolute;top:7px;left:9px;width:19px;height:19px;border-radius:50%;background:var(--navy);color:#fff;font-size:.68rem;font-weight:800}
.sim-arrow{display:flex;align-items:center;color:#8da5a7;font-weight:900}
.sim-compare{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:center}.sim-panel{height:100%;padding:20px;background:#fff;border:1px solid var(--line);border-radius:16px}.sim-panel h3{margin:.35rem 0 1rem}
.sim-before{border-top:4px solid var(--red)}.sim-after{border-top:4px solid var(--aqua)}.sim-shift{font-size:2rem;font-weight:900;color:var(--aqua)}
.alarm-line,.rank-line{display:grid;align-items:center;gap:9px;padding:9px 0;border-top:1px solid #edf1ef}.alarm-line{grid-template-columns:1fr auto auto}.alarm-line b{color:var(--red);font-size:.72rem}.alarm-line em{color:var(--muted);font-size:.68rem}
.rank-line{grid-template-columns:auto 1fr auto}.rank-line small{display:block;color:var(--muted);font-size:.68rem}.rank-line>b{color:var(--navy);font-size:1.05rem}.rank-num{display:grid;place-items:center;width:25px;height:25px;border-radius:50%;background:var(--aqua-soft);color:#087b75;font-weight:800}
.sim-caption{font-size:.72rem!important;color:var(--muted)!important;margin-bottom:0}
.route-head{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.route-head div{padding:15px;background:#fff;border:1px solid var(--line);border-radius:12px;text-align:center}.route-head span,.route-head small{display:block}.route-head span{font-size:1.5rem;font-weight:850;color:var(--navy)}.route-head small{font-size:.68rem;color:var(--muted)}
.sim-components{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.sim-components article{padding:18px;background:#fff;border:1px solid var(--line);border-radius:14px}.sim-components h3{margin:.45rem 0}.sim-components p{font-size:.8rem;margin:0}.component-tag{font-size:.68rem;font-weight:800;color:#087b75;text-transform:uppercase}
.sim-combine{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:9px;margin:14px 0;padding:16px;border-radius:12px;background:var(--navy);color:#fff}.sim-combine span{padding:5px 9px;border-radius:7px;background:rgba(255,255,255,.1)}.sim-combine b{color:var(--lime)}
.sim-outcomes{display:grid;grid-template-columns:1fr 1fr;gap:14px}.sim-outcomes>div{padding:18px;border-radius:14px}.sim-outcomes h3{margin-top:0}.sim-outcomes li{font-size:.82rem}.outcome-good{background:var(--aqua-soft);border:1px solid #b9e7df}.outcome-limit{background:#fff2ef;border:1px solid #f1cbc4}
.rollout{display:grid;grid-template-columns:repeat(3,1fr);gap:0}.rollout>div{position:relative;padding:18px;background:#fff;border:1px solid var(--line)}.rollout>div:first-child{border-radius:14px 0 0 14px}.rollout>div:last-child{border-radius:0 14px 14px 0}.rollout strong,.rollout span{display:block}.rollout strong{font-size:.68rem;color:#087b75;text-transform:uppercase}.rollout span{font-weight:800}.rollout p{font-size:.75rem;margin-bottom:0}
@media (max-width:1180px){
  .page-06-simulation .sim-hero,.page-06-simulation .sim-compare,.page-06-simulation .sim-components,.page-06-simulation .sim-outcomes,.page-06-simulation .rollout{grid-template-columns:1fr}
  .page-06-simulation .sim-flow{display:grid;grid-template-columns:1fr;gap:7px}
  .page-06-simulation .sim-step{display:grid;grid-template-columns:28px 64px 1fr;text-align:left;align-items:center;gap:10px;padding:13px 15px}
  .page-06-simulation .sim-step .sim-number{position:static}.page-06-simulation .sim-step .sim-icon{margin:0;text-align:center}
  .page-06-simulation .sim-step small{grid-column:3}.page-06-simulation .sim-arrow{justify-content:center;height:12px;transform:rotate(90deg)}
  .page-06-simulation .sim-shift{transform:rotate(90deg);text-align:center}
  .page-06-simulation .route-head{grid-template-columns:1fr 1fr}
  .page-06-simulation .rollout>div:first-child,.page-06-simulation .rollout>div:last-child{border-radius:12px}
  .page-06-simulation table{display:block;overflow-x:auto;white-space:nowrap}
}
@media (max-width:900px){
  .sidebar{position:static;width:auto;flex-direction:row;flex-wrap:wrap;gap:8px}
  .sidebar nav{flex-direction:row;flex-wrap:wrap}
  .main{margin-left:0}
  .content{padding:26px 18px}
  .page-06-simulation .route-head{grid-template-columns:1fr 1fr}
}