.btc-atlas-shell{max-width:1480px;margin:0 auto 72px;padding:0 28px}.btc-atlas-intro{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:end;border-top:1px solid var(--tech-line);padding-top:44px;margin-bottom:28px}.btc-atlas-intro p{margin:0 0 9px;font-size:9px;letter-spacing:.14em;color:var(--tech-mint)}.btc-atlas-intro h2{margin:0;font-size:clamp(30px,4vw,52px);letter-spacing:-.045em;font-weight:520}.btc-atlas-intro h2 span{color:var(--tech-mint)}.btc-atlas-intro .btc-lead{display:block;max-width:820px;margin-top:12px;color:var(--tech-body);font-size:12px;line-height:1.75}.btc-stats{display:grid;grid-template-columns:auto auto;gap:5px 12px;align-items:baseline}.btc-stats strong{font-size:30px;color:var(--tech-mint);font-weight:500}.btc-stats span{font-size:9px;letter-spacing:.08em;color:var(--tech-muted);white-space:nowrap}.btc-layer{scroll-margin-top:145px;margin:0 0 54px}.btc-layer__head{display:flex;justify-content:space-between;gap:24px;align-items:end;padding:0 0 16px;border-bottom:1px solid var(--tech-line);margin-bottom:14px}.btc-layer__head p{margin:0 0 6px;font-size:9px;letter-spacing:.12em;color:var(--tech-mint)}.btc-layer__head h2{margin:0;font-size:clamp(24px,3vw,36px);font-weight:540;letter-spacing:-.035em}.btc-layer__head span{display:block;max-width:760px;margin-top:8px;color:var(--tech-body);font-size:11px;line-height:1.65}.btc-layer__head>strong{font-size:30px;color:var(--tech-mint);font-weight:450;white-space:nowrap}.btc-layer__head small{font-size:8px;color:var(--tech-muted);letter-spacing:.1em}.btc-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.btc-card{border:1px solid rgba(185,255,203,.16);background:linear-gradient(135deg,rgba(185,255,203,.024),rgba(255,255,255,.007));padding:17px 17px 14px;min-height:225px;transition:.2s border-color,.2s transform,.2s 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summary:after{content:'−'}.btc-detail{padding-top:12px}.btc-detail b{display:block;margin:9px 0 6px;font-size:7px;letter-spacing:.12em;color:#6f8278}.btc-tags{display:flex;flex-wrap:wrap;gap:5px}.btc-tags span{font-size:8px;line-height:1.25;padding:4px 6px;border:1px solid rgba(185,255,203,.12);color:#8fa49a}.btc-boundary{margin:12px 0 0;font-size:8px;color:#63766c}.btc-atlas-note{border-top:1px solid var(--tech-line);padding-top:16px;color:var(--tech-muted);font-size:9px;line-height:1.7}@media(max-width:1100px){.btc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:760px){.btc-atlas-shell{padding:0 16px;margin-bottom:54px}.btc-atlas-intro{grid-template-columns:1fr}.btc-grid{grid-template-columns:1fr}.btc-layer__head{display:block}.btc-layer__head>strong{display:block;margin-top:12px}.btc-card{min-height:0}}.btc-card{display:flex;flex-direction:column;cursor:pointer}.btc-card__action{margin-top:auto;padding-top:13px;border-top:1px solid 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0;border-bottom:1px solid var(--tech-line)}.btc-live-section__head{display:flex;align-items:center;gap:10px;margin-bottom:14px}.btc-live-section__head span{font-size:8px;color:var(--tech-mint);letter-spacing:.1em}.btc-live-section__head h4{margin:0;font-size:16px;font-weight:560}.btc-live-section>b{display:block;margin:15px 0 7px;font-size:7px;letter-spacing:.12em;color:#70877b}.btc-live-question{font-size:13px;line-height:1.75;color:#c5d4cc}.btc-live-list{margin:8px 0 0;padding-left:18px}.btc-live-list li{font-size:10px;line-height:1.65;color:#9db0a6;margin:5px 0}.btc-live-empty{font-size:10px;color:#6f8378;line-height:1.65}.btc-live-section details{margin-top:10px;border-top:1px solid rgba(255,255,255,.05);padding-top:10px}.btc-live-section details summary{cursor:pointer;color:#93b9a4;font-size:9px}.btc-evidence-meta{display:grid;grid-template-columns:auto 1fr auto 1fr;gap:7px 10px;align-items:center;margin-bottom:10px}.btc-evidence-meta span{font-size:7px;letter-spacing:.1em;color:#64786e}.btc-evidence-meta strong{font-size:9px;font-weight:500;color:#b8c9c0}.btc-coverage-kpi{display:grid;grid-template-columns:auto 1fr auto 1fr;gap:7px 10px;align-items:baseline;margin-bottom:12px}.btc-coverage-kpi strong{font-size:24px;color:var(--tech-mint);font-weight:500}.btc-coverage-kpi span{font-size:8px;color:#71857a}.btc-source-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.btc-source-grid article{border:1px solid rgba(255,255,255,.065);padding:11px;background:rgba(255,255,255,.008)}.btc-source-grid article>div{display:flex;justify-content:space-between;gap:10px}.btc-source-grid strong{font-size:10px}.btc-source-grid p{font-size:9px;line-height:1.5;color:#788c81;margin:6px 0}.btc-source-grid small{font-size:7px;color:#597065}.btc-source-status{font-size:7px;color:#7f968a}.btc-source-status.longitudinal,.btc-source-status.available{color:var(--tech-mint)}.btc-agent-zone{background:rgba(185,255,203,.018);margin-left:-18px;margin-right:-18px;padding-left:18px;padding-right:18px}.btc-agent-zone>p{font-size:10px;color:#8fa49a;line-height:1.65}.btc-run-btn{display:inline-flex;margin-top:12px;padding:11px 15px;border:1px solid rgba(185,255,203,.32);border-radius:999px;background:rgba(185,255,203,.05);color:var(--tech-mint);font-size:10px;text-decoration:none;cursor:pointer}.btc-run-btn:disabled{opacity:.55;cursor:wait}.btc-running-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--tech-mint);margin-right:7px;animation:btcPulse 1.1s infinite}.btc-agent-zone #btcRunStatus{font-size:9px;color:#789084;margin-top:10px}.btc-prediction{border-left:2px solid rgba(185,255,203,.35);padding:12px 14px;background:rgba(185,255,203,.02)}.btc-prediction>span{font-size:7px;letter-spacing:.1em;color:var(--tech-mint)}.btc-prediction p{font-size:10px;line-height:1.6;color:#9caea5;margin:9px 0}.btc-prediction p b{display:block;color:#d6e2dc;font-size:8px;letter-spacing:.08em}.btc-prediction small{font-size:8px;color:#687d72}.btc-gates{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:10px}.btc-gates>div{display:flex;gap:9px;align-items:center;border:1px solid var(--tech-line);padding:9px}.btc-gates>div span{font-size:11px;color:#6d8176}.btc-gates>div strong{font-size:9px;font-weight:500;color:#84988d}.btc-gates>div.is-pass{border-color:rgba(185,255,203,.24)}.btc-gates>div.is-pass span,.btc-gates>div.is-pass strong{color:var(--tech-mint)}.btc-n1-decision{display:inline-flex;padding:6px 9px;border:1px solid rgba(255,255,255,.1);font-size:8px;letter-spacing:.08em;color:#84978d}.btc-n1-decision.is-ready{border-color:rgba(185,255,203,.3);color:var(--tech-mint)}@keyframes btcPulse{50%{opacity:.25;transform:scale(.72)}}@media(max-width:760px){.btc-drawer{width:100vw;padding:22px 17px 60px}.btc-flow{grid-template-columns:repeat(3,minmax(0,1fr))}.btc-source-grid,.btc-gates{grid-template-columns:1fr}.btc-evidence-meta,.btc-coverage-kpi{grid-template-columns:auto 1fr}.btc-live-head h2{font-size:32px}}

/* 68-card campaign copy: compact public hook; formal research question stays in Research Contract drawer. */
.btc-ad-copy{margin:8px 0 14px}
.btc-ad-copy h4{margin:0 0 4px;color:#8FD3FF;font-size:14px;font-weight:560;line-height:1.45;letter-spacing:-.01em}
.btc-ad-copy p{margin:0;color:#8FD3FF;font-size:10px;font-weight:430;line-height:1.6}
@media(max-width:460px){.btc-ad-copy h4{font-size:13px}.btc-ad-copy p{font-size:9.5px}}
/* Public research receipts */
.btc-receipt-mini{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin:10px 0 7px}
.btc-receipt-mini>div{border:1px solid rgba(143,211,255,.14);padding:7px 8px;background:rgba(143,211,255,.018)}
.btc-receipt-mini span{display:block;font-size:7px;letter-spacing:.06em;color:#7897a8;margin-bottom:3px}
.btc-receipt-mini strong{font-size:16px;font-weight:520;color:#8FD3FF}
.btc-receipt-state{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 7px}
.btc-receipt-state span{font-size:7px;border:1px solid rgba(143,211,255,.14);border-radius:999px;padding:4px 6px;color:#8fb8cd}
.btc-receipt-details{border-top:1px solid rgba(143,211,255,.1);margin:7px 0 0}
.btc-receipt-details>summary{padding:9px 0 0;color:#8FD3FF;font-size:8px;cursor:pointer;list-style:none}
.btc-receipt-details>summary::-webkit-details-marker{display:none}
.btc-receipt-details>summary:after{content:'＋';float:right}.btc-receipt-details[open]>summary:after{content:'−'}
.btc-receipt-grid{display:grid;grid-template-columns:1fr;gap:10px;padding:10px 0 2px}
.btc-receipt-grid section{border-left:1px solid rgba(143,211,255,.16);padding-left:8px}
.btc-receipt-grid b{display:block;font-size:7px;letter-spacing:.09em;color:#738e9c;margin-bottom:5px}
.btc-receipt-grid ul{list-style:none;padding:0;margin:0}.btc-receipt-grid li{display:flex;justify-content:space-between;gap:8px;font-size:8px;line-height:1.45;color:#849ca9;margin:3px 0}
.btc-receipt-grid li strong{font-weight:450;color:#a8bfca;text-align:right;overflow-wrap:anywhere}.btc-receipt-grid li.is-done{display:block;color:#93c8a8}.btc-receipt-grid li.is-missing{display:block;color:#b9a28d}
@media(max-width:460px){.btc-receipt-mini strong{font-size:15px}.btc-receipt-grid li{font-size:7.5px}}
/* Desktop drawer backdrop: keep page context visible. Mobile remains immersive. */
@media(min-width:761px){
  .btc-drawer-bg{background:rgba(1,7,5,.18);backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px)}
}
@media(max-width:760px){
  .btc-drawer-bg{background:rgba(1,7,5,.72);backdrop-filter:blur(9px);-webkit-backdrop-filter:blur(9px)}
}
/* BTC-002 public science / counterevidence brief */
.btc-science-brief{border:1px solid rgba(143,211,255,.16);border-radius:8px;background:linear-gradient(150deg,rgba(143,211,255,.035),rgba(185,255,203,.012));padding:21px 19px;margin:19px 0 3px}
.btc-science-brief .btc-live-section__head{align-items:baseline;flex-wrap:wrap}
.btc-science-brief .btc-live-section__head span{font-size:8px;color:#8FD3FF}
.btc-science-brief .btc-live-section__head h4{font-size:16px;line-height:1.5;color:#d8eae4}
.btc-science-brief>p,.btc-science-study p,.btc-science-gap p{font-size:11px;line-height:1.85;color:#a0b8ad;margin:8px 0 0}
.btc-science-study{border-top:1px solid rgba(143,211,255,.14);margin-top:17px;padding-top:16px}
.btc-science-study__meta{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:7px}
.btc-science-study__meta small{font-size:8px;color:#80968c}
.btc-science-study__badge{font-size:8px;letter-spacing:.04em;border:1px solid rgba(143,211,255,.22);padding:5px 7px;color:#8FD3FF}
.btc-science-study__badge.is-counter{border-color:rgba(230,190,145,.32);color:#e2c5a3}
.btc-science-study h5,.btc-science-gap h5{margin:0;font-size:12px;line-height:1.5;color:#d8eae4;font-weight:560}
.btc-science-links{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}
.btc-science-links a{display:inline-flex;align-items:center;font-size:9px;text-decoration:none;color:#8FD3FF;border:1px solid rgba(143,211,255,.25);border-radius:999px;padding:6px 9px}
.btc-science-links a:hover{background:rgba(143,211,255,.08)}
.btc-science-gap{border-left:2px solid rgba(230,190,145,.5);padding:11px 13px;margin-top:18px;background:rgba(230,190,145,.03)}
.btc-science-brief .btc-science-closing{color:#8FD3FF;font-size:10px;margin-top:17px}
@media(max-width:760px){.btc-science-brief{padding:17px 13px}.btc-science-brief .btc-live-section__head h4{font-size:15px}}
/* BTC-002 cross-era research receipt */
.btc-cross-era{border-top:1px solid rgba(143,211,255,.18)}
.btc-cross-era__status{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 18px}
.btc-cross-era__status span{font-size:8px;color:#8FD3FF;border:1px solid rgba(143,211,255,.22);border-radius:999px;padding:5px 8px}
.btc-cross-era>h5{margin:20px 0 7px;font-size:12px;font-weight:560;color:#d9e8e1}
.btc-cross-era__note{margin:0 0 12px;color:#91a79d;font-size:10px;line-height:1.75}
.btc-historical-grid{display:grid;grid-template-columns:1fr;gap:8px}
.btc-historical-grid article,.btc-biomni-hypotheses article{border:1px solid rgba(143,211,255,.13);padding:11px 12px;background:rgba(143,211,255,.018)}
.btc-historical-grid article>div{display:flex;justify-content:space-between;gap:8px}.btc-historical-grid span{font-size:9px;color:#adc4b9}.btc-historical-grid strong{font-size:8px;color:#8FD3FF}
.btc-historical-grid blockquote{margin:8px 0;font-size:11px;line-height:1.7;color:#d5e2dc;border-left:2px solid rgba(143,211,255,.3);padding-left:10px}.btc-historical-grid small{font-size:7px;color:#72877c}.btc-historical-grid a{float:right;font-size:8px;color:#8FD3FF;text-decoration:none}
.btc-biomni-hypotheses{display:grid;gap:8px}.btc-biomni-hypotheses b{color:#8FD3FF;font-size:9px}.btc-biomni-hypotheses p{margin:6px 0;font-size:10px;line-height:1.65;color:#a5b7ae}.btc-biomni-hypotheses small{font-size:8px;line-height:1.5;color:#7f948a}
.btc-biomni-steps{padding:0;margin:8px 0 0;list-style:none}.btc-biomni-steps li{display:grid;grid-template-columns:22px 1fr;gap:8px;border-top:1px solid rgba(255,255,255,.055);padding:8px 0;font-size:9px;line-height:1.55;color:#92a69c}.btc-biomni-steps li span{color:#8FD3FF}
.btc-judge-box{margin-top:16px;border-left:2px solid rgba(230,190,145,.55);background:rgba(230,190,145,.035);padding:12px 13px}.btc-judge-box strong{font-size:10px;color:#e2c5a3}.btc-judge-box p{margin:7px 0;font-size:10px;line-height:1.7;color:#a9aaa0}.btc-judge-box small{font-size:7px;color:#7f817a}

/* BTC-002 core research chain */
.btc-main-chain{margin:18px 0 2px;padding:22px 18px;border:1px solid rgba(143,211,255,.18);border-radius:8px;background:linear-gradient(145deg,rgba(143,211,255,.035),rgba(255,255,255,.006))}
.btc-main-chain .btc-live-section__head{margin-bottom:8px}.btc-main-chain .btc-live-section__head span{color:#8FD3FF}
.btc-main-chain__lead{margin:0 0 16px;color:#9cb1a7;font-size:10px;line-height:1.7}
.btc-main-chain__rail{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;align-items:stretch}
.btc-main-chain__step{position:relative;border:1px solid rgba(143,211,255,.13);padding:11px 10px;background:rgba(143,211,255,.018);min-height:154px}
.btc-main-chain__step.is-gate{border-color:rgba(230,190,145,.34);background:rgba(230,190,145,.025)}
.btc-main-chain__index{font-size:8px;color:#718f9f;letter-spacing:.08em;margin-bottom:12px}
.btc-main-chain__body>span{display:block;font-size:7px;letter-spacing:.07em;color:#6f8794;text-transform:uppercase}
.btc-main-chain__body h5{margin:5px 0 7px;font-size:11px;line-height:1.45;color:#d8e7e0;font-weight:560}
.btc-main-chain__body p{margin:0;font-size:8px;line-height:1.55;color:#83988e}
.btc-main-chain__body strong{display:inline-flex;margin-top:12px;padding:4px 6px;border:1px solid rgba(143,211,255,.22);border-radius:999px;color:#8FD3FF;font-size:7px;letter-spacing:.05em;font-weight:520}
.btc-main-chain__step.is-gate .btc-main-chain__body strong{border-color:rgba(230,190,145,.34);color:#e2c5a3}
.btc-main-chain__step>i{position:absolute;right:-12px;top:50%;z-index:2;transform:translateY(-50%);font-style:normal;font-size:12px;color:#4f6874}
.btc-main-chain__verdict{display:grid;grid-template-columns:auto auto 1fr;gap:10px;align-items:center;margin-top:12px;padding:10px 12px;border-left:2px solid rgba(230,190,145,.55);background:rgba(230,190,145,.025)}
.btc-main-chain__verdict span{font-size:8px;color:#8d8e87}.btc-main-chain__verdict strong{font-size:10px;color:#e2c5a3;letter-spacing:.08em}.btc-main-chain__verdict p{margin:0;font-size:9px;line-height:1.55;color:#939b94}
@media(max-width:900px){.btc-main-chain__rail{grid-template-columns:1fr}.btc-main-chain__step{min-height:0;padding:11px 12px}.btc-main-chain__step>i{position:static;display:block;transform:none;text-align:center;margin:8px 0 -18px;font-size:12px}.btc-main-chain__verdict{grid-template-columns:auto auto;}.btc-main-chain__verdict p{grid-column:1/-1}}