:root{
  --bg:#FAFAF7; --ink:#101110; --card:#FFFFFF; --tile:#F1F3EC;
  --line:#E8EAE2; --line-soft:#EEF0E9; --muted:#6A6D63; --faint:#767A70;
  --lime:#C8F169; --lime-deep:#5A8A14; --lime-ink:#3E4A18;
  --loss:#C0392B; --gain:#2F7A1C; --gain-bg:#EEF7E3; --loss-bg:#FBECEA; --dark:#101110; --dark-line:#24261F; --dark-muted:#9CA096;
  --mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --sans:'Inter',-apple-system,'Segoe UI',Roboto,sans-serif;
  --r-lg:24px; --r-md:20px; --r-sm:14px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;font-feature-settings:'tnum' 1,'ss01' 1}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(250,250,247,.88);backdrop-filter:blur(12px);border-bottom:0.5px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;letter-spacing:-0.02em}
.brand .w1{font-weight:500;color:var(--ink)}
.brand .w2{font-weight:800;color:var(--ink)}
.brand .w2 b{color:var(--lime-deep)}
.nav-links{display:flex;gap:28px;align-items:center;font-size:14px;color:var(--muted)}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink);font-weight:500}
.btn{display:inline-flex;align-items:center;gap:8px;border:none;cursor:pointer;font-family:var(--sans);font-size:15px;font-weight:500;border-radius:999px;padding:12px 22px;transition:transform .12s ease,opacity .15s}
.btn:active{transform:scale(.97)}
.btn-ink{background:var(--ink);color:var(--bg)}
.btn-ink:hover{opacity:.85}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-ghost{background:transparent;border:1.5px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}
.nav-toggle{display:none;background:none;border:none;font-size:22px;cursor:pointer;color:var(--ink)}

/* hero */
.hero{padding:64px 0 36px}
.hero h1{font-size:clamp(38px,6vw,64px);font-weight:600;letter-spacing:-0.035em;line-height:1.06}
.hero h1 .accent{color:var(--lime-deep)}
.hero .sub{font-size:18px;color:var(--muted);max-width:520px;margin-top:16px}
.hero-row{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;gap:8px;background:var(--tile);color:var(--muted);font-size:13px;padding:7px 14px;border-radius:999px;margin-bottom:18px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--lime-deep);display:inline-block}
.dot.pulse{animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
@media (prefers-reduced-motion:reduce){.dot.pulse{animation:none}}

/* bento */
.bento{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:16px;padding:28px 0 48px}
.card{background:var(--card);border:0.5px solid var(--line);border-radius:var(--r-lg);padding:22px}
.card-dark{background:var(--dark);color:#E9EBE4;border:none;border-radius:var(--r-lg);padding:22px}
.card-lime{background:var(--lime);border:none;border-radius:var(--r-lg);padding:22px}
.card-tile{background:var(--tile);border:none;border-radius:var(--r-md);padding:18px}
.span-2r{grid-row:span 2}
.span-2c{grid-column:span 2}
.card-label{font-size:12px;letter-spacing:1.2px;color:var(--muted);text-transform:uppercase}
.card-dark .card-label{color:var(--dark-muted)}
.big-num{font-family:var(--mono);font-weight:600;font-size:34px;letter-spacing:-0.02em}
.stat-num{font-family:var(--mono);font-weight:600;font-size:26px}
.stat-cap{font-size:13px;color:var(--muted);margin-top:2px}
.pos{color:var(--ink)} .neg{color:var(--loss)} .gain{color:var(--gain)}

/* dark signal card */
.sig-head{display:flex;justify-content:space-between;align-items:center}
.sig-live{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:1px;color:var(--lime)}
.sig-live .dot{background:var(--lime)}
.sig-rows{font-family:var(--mono);font-size:16px;line-height:2.15;margin-top:12px}
.sig-rows .row{display:flex;justify-content:space-between}
.sig-rows .k{color:var(--dark-muted)}
.masked{color:var(--lime);letter-spacing:3px}
.sig-note{border-top:1px solid var(--dark-line);margin-top:12px;padding-top:12px;font-size:13.5px;color:var(--dark-muted)}
.sig-last{background:#1B1D17;border-radius:14px;margin-top:14px;padding:12px 14px;font-family:var(--mono);font-size:15px;color:var(--lime)}

/* record table */
.rec{overflow:hidden;padding:0}
.rec-head{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:0.5px solid var(--line-soft)}
.rec-row{display:flex;justify-content:space-between;align-items:center;padding:13px 20px;font-size:14px}
.rec-row+.rec-row{border-top:0.5px solid var(--line-soft)}
.rec-row .meta{color:var(--faint);font-size:12.5px;margin-left:8px}
.rec-row .res{font-family:var(--mono)}
.tag{font-size:11px;background:var(--tile);color:var(--muted);padding:3px 9px;border-radius:999px;letter-spacing:.5px}
.tag-run{background:#F5F9E6;color:var(--lime-ink)}

/* sections */
.section{padding:32px 0}
.section-title{font-size:22px;font-weight:600;letter-spacing:-0.02em;margin-bottom:16px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.step-num{font-family:var(--mono);font-size:14px;color:var(--lime-deep);font-weight:700}
.verify-item{display:flex;align-items:center;gap:10px;border:0.5px solid var(--line);border-radius:var(--r-sm);padding:14px 16px;font-size:14px;color:#3E4139}
.verify-item .ic{color:var(--lime-deep);font-size:18px}

/* prose pages */
.prose{max-width:720px}
.prose h2{font-size:24px;letter-spacing:-0.02em;margin:36px 0 12px}
.prose p{color:#3E4139;margin-bottom:14px}
.prose .callout{background:var(--tile);border-radius:var(--r-sm);padding:16px 18px;font-size:15px;margin:18px 0}

/* footer */
.footer{border-top:0.5px solid var(--line);margin-top:48px;padding:32px 0 40px;font-size:13px;color:var(--faint)}
.footer .cols{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:20px}
.footer a:hover{color:var(--ink)}
.risk{background:var(--tile);border-radius:var(--r-sm);padding:14px 18px;line-height:1.7}

@media (max-width:900px){
  .bento{grid-template-columns:1fr 1fr}
  .span-2c{grid-column:span 2}
  .grid-4{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:var(--bg);border-bottom:0.5px solid var(--line);flex-direction:column;padding:16px 24px;gap:16px;align-items:flex-start}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .bento{grid-template-columns:1fr}
  .span-2r,.span-2c{grid-row:auto;grid-column:auto}
  .grid-2,.grid-3{grid-template-columns:1fr}
  .grid-4{grid-template-columns:1fr 1fr}
  .hero{padding:44px 0 24px}
}

/* learn */
.article-card{display:block;background:var(--card);border:0.5px solid var(--line);border-radius:var(--r-md);padding:20px;transition:border-color .15s}
.article-card:hover{border-color:var(--ink)}
.article-card .cat{font-size:11.5px;letter-spacing:1.2px;color:var(--lime-deep);text-transform:uppercase;font-weight:700}
.article-card h3{font-size:17px;font-weight:600;letter-spacing:-0.01em;margin:8px 0 6px}
.article-card p{font-size:14px;color:var(--muted)}
.article-card .read{font-size:12.5px;color:var(--faint);margin-top:12px}
.explain{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:36px 0}
.explain h2{font-size:26px;letter-spacing:-0.025em;line-height:1.2}
.explain p{color:#3E4139;margin-top:12px;font-size:15.5px}
.feat{display:flex;gap:14px;padding:14px 0;border-top:0.5px solid var(--line)}
.feat i{font-size:20px;color:var(--lime-deep);margin-top:3px}
.feat strong{display:block;font-size:15px}
.feat span{font-size:14px;color:var(--muted)}
.notice{background:#FFF8E6;border:0.5px solid #EFD9A8;border-radius:var(--r-sm);padding:14px 18px;font-size:14px;color:#5C4A12;line-height:1.65}
@media (max-width:640px){.explain{grid-template-columns:1fr;gap:20px;padding:24px 0}}

.trust-strip{display:flex;gap:22px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-top:22px;padding-top:18px;border-top:0.5px solid var(--line)}
.trust-strip span b{color:var(--ink);font-weight:600;font-family:var(--mono)}
.audit{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--muted);margin-top:10px;padding-top:10px;border-top:0.5px solid var(--line-soft)}
.audit .ok{color:var(--lime-deep);font-weight:600}
.card:hover{border-color:#D5D8CE}

/* polish pass */
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:6px}
.btn:focus-visible{outline-offset:2px}
.rec-row{transition:background .12s}
.rec-row:hover{background:#F6F7F2}
.rec-row .res.gainy{color:var(--gain)}
.chart-wrap{position:relative}
.tip{position:absolute;pointer-events:none;background:var(--ink);color:var(--bg);font-family:var(--mono);font-size:12px;padding:6px 9px;border-radius:8px;white-space:nowrap;transform:translate(-50%,-120%);opacity:0;transition:opacity .12s}
.tip.show{opacity:1}
.card-dark .tip{background:var(--lime);color:var(--ink)}
.card-label{font-weight:600}
.hero h1{font-weight:700}
.section-title{font-weight:700}
.stat-num,.big-num{font-weight:600;letter-spacing:-0.03em}
.pill-gain{background:var(--gain-bg);color:var(--gain)}
.pill-loss{background:var(--loss-bg);color:var(--loss)}
.tag{font-weight:600}
.nav-toggle svg{width:24px;height:24px}
@media (prefers-reduced-motion:reduce){.draw{stroke-dasharray:none!important;stroke-dashoffset:0!important;transition:none!important}}

.stepper{display:flex;gap:0;margin:20px 0}
.stepper .st{flex:1;padding:14px 16px;border-top:3px solid var(--line);font-size:13px;color:var(--muted)}
.stepper .st b{display:block;color:var(--ink);font-size:14px;margin-top:4px}
.stepper .st.done{border-top-color:var(--lime-deep)}
.stepper .st.now{border-top-color:var(--ink)}
.status{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px}
.s-ok{background:var(--gain-bg);color:var(--gain)} .s-wait{background:#FFF3D6;color:#7A5A0F} .s-no{background:var(--loss-bg);color:var(--loss)} .s-mute{background:var(--tile);color:var(--muted)}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:13px;color:var(--muted);font-weight:500}
.field input,.field select,.field textarea{font-family:var(--sans);font-size:15px;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;background:var(--bg);color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--ink)}
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th{font-size:12px;letter-spacing:1px;text-transform:uppercase;color:var(--muted);text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}
.tbl td{padding:12px;border-bottom:0.5px solid var(--line-soft);vertical-align:top}
.tbl tr:hover td{background:#F6F7F2}
.side{display:grid;grid-template-columns:220px 1fr;gap:20px}
.side nav{display:flex;flex-direction:column;gap:4px}
.side nav a{padding:10px 12px;border-radius:10px;font-size:14px;color:var(--muted)}
.side nav a.on{background:var(--tile);color:var(--ink);font-weight:600}
.msg{max-width:78%;padding:12px 14px;border-radius:14px;font-size:14px;line-height:1.6;margin-bottom:10px}
.msg.me{background:var(--ink);color:var(--bg);margin-left:auto;border-bottom-right-radius:4px}
.msg.them{background:var(--tile);border-bottom-left-radius:4px}
.kpi{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.term{border-bottom:0.5px solid var(--line);padding:16px 0}
.term h3{font-size:17px;font-weight:700}
.term p{font-size:14.5px;color:#3E4139;margin-top:6px}
@media (max-width:900px){.side{grid-template-columns:1fr}.kpi{grid-template-columns:1fr 1fr}.stepper{flex-direction:column}}