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/* Career case refinement: chapter index, decision split, and evidence connections. */
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.index-label b{font-size:10px;color:var(--blue);letter-spacing:.12em}.index-label small{font-size:11px;color:var(--muted)}
.index-links{display:flex;align-items:center;gap:0;min-width:max-content}.section-nav a{position:relative;border:0;padding:3px 10px;color:#70809a}.section-nav a:first-child{padding-left:10px}.section-nav a::after{content:"";position:absolute;left:10px;right:10px;bottom:-13px;height:2px;background:transparent}.section-nav a.active{color:var(--blue)}.section-nav a.active::after{background:var(--blue)}
.research-board article{min-height:100px}.decision-canvas{padding:28px 34px}.decision-logic{position:relative}.logic-entry{width:min(520px,100%);margin:0 auto;padding:13px 18px;border:1px solid #ceddf1;background:#fff;text-align:center}.logic-entry span,.logic-node span{display:block;font-size:11px;color:var(--blue);font-weight:850;letter-spacing:.1em}.logic-entry b{display:block;font-size:15px;margin-top:4px}.logic-arrow{text-align:center;color:var(--blue);font-size:22px;line-height:1.25}.logic-node{width:250px;margin:auto;padding:15px 18px;background:#e5efff;border:1px solid #a9c6fa;text-align:center}.logic-node b{display:block;font-size:19px;line-height:1.35;margin:5px 0}.logic-node i{font-style:normal;font-size:11px;color:#5274a6}.logic-branches{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:34px;padding-top:22px}.logic-branches::before{content:"";position:absolute;top:0;left:25%;right:25%;height:1px;background:#b8cceb}.logic-branches::after{content:"";position:absolute;top:-22px;left:50%;height:22px;width:1px;background:#b8cceb}.input-scene{min-height:0;padding:23px 24px 20px}.input-scene header{display:flex;align-items:baseline;gap:10px;margin-bottom:14px}.input-scene header span{font-size:11px;color:#6888b6;font-weight:850}.input-scene header b{font-size:17px}.explore header span{color:#168b6c}.question-copy{font-size:22px;font-weight:850;line-height:1.35;margin:0 0 18px;text-decoration:underline;text-decoration-color:#c6d9ff;text-underline-offset:5px}.explore .question-copy{text-decoration-color:#bfe3d8}.answer-snippet b{font-size:14px}.rebuild-map{grid-template-columns:repeat(3,1fr)}.rebuild-rule{padding:30px 24px;border-top:1px solid #b9d6ff;border-bottom:1px solid #b9d6ff}.rebuild-rule b{font-size:19px}.scale-line:before{display:none}.scale-line article{padding-right:16px}.scale-line article:not(:last-child)::after{content:"";position:absolute;z-index:0;left:37px;right:0;top:18px;height:1px;background:#a8c1ea}.scale-line i{z-index:1}.scale-line article:last-child{padding-right:0}
@media(max-width:980px){.section-nav{gap:13px}.index-label{display:none}.research-board article{min-height:0}.decision-logic{max-width:720px;margin:auto}.logic-branches{grid-template-columns:1fr 1fr}.rebuild-map{grid-template-columns:repeat(3,1fr)}.rebuild-rule{order:initial}.rebuild-rule b{font-size:17px}.scale-line article:not(:last-child)::after{display:none}}
@media(max-width:620px){.section-nav{gap:0;padding-block:10px}.index-links{gap:0}.section-nav a{padding-inline:8px}.section-nav a::after{bottom:-10px;left:8px;right:8px}.logic-entry{font-size:13px}.logic-node{width:100%}.logic-branches{grid-template-columns:1fr;gap:14px}.logic-branches::before,.logic-branches::after{display:none}.rebuild-map{grid-template-columns:1fr}.rebuild-rule{order:-1}.scale-line article:not(:last-child)::after{display:none}}

/* Reflection: name the product mechanism without adding another conclusion block. */
.reflection-lead{max-width:680px;margin:-2px 0 27px;color:var(--muted);font-size:16px;line-height:1.7}.reflection-grid b{line-height:1.45}
@media(max-width:620px){.reflection-lead{font-size:15px;margin-bottom:22px}}

/* Evidence links keep research, state, and verification readable as one chain. */
.research-evidence{display:block;margin-top:8px;color:#14705a;font-size:11px;font-weight:800;letter-spacing:.02em}.pending-evidence{color:#9a6a21}.rebuild-evidence{display:grid;grid-template-columns:repeat(2,1fr);margin-top:22px;border:1px solid var(--line);background:#fff}.evidence-head{grid-column:1/-1;display:flex;gap:16px;align-items:center;padding:17px 20px;border-bottom:1px solid var(--line);background:#f8faff}.evidence-head span,.flow-board-head span,.proof-head span,.badcase-head span{color:var(--blue);font-size:11px;font-weight:900;letter-spacing:.08em}.evidence-head b,.flow-board-head b,.proof-head b,.badcase-head b{font-size:15px;line-height:1.45}.rebuild-evidence article{padding:20px;border-right:1px solid var(--line)}.rebuild-evidence article:last-child{border-right:0}.rebuild-evidence article small{display:block;margin-bottom:7px;color:var(--blue);font-size:11px;font-weight:900}.rebuild-evidence article b{display:block;font-size:17px;line-height:1.45}.rebuild-evidence article p{margin:8px 0 13px;color:var(--muted);font-size:14px;line-height:1.6}.rebuild-evidence article i{display:block;color:#14705a;font-size:12px;font-style:normal;font-weight:800}.badcase-proof{margin-top:30px;border:1px solid #ebcbd0;background:#fffafb}.proof-head,.flow-board-head,.badcase-head{display:flex;gap:16px;align-items:center;padding:17px 20px;border-bottom:1px solid var(--line)}.proof-head{border-color:#ebcbd0}.proof-chain{display:grid;grid-template-columns:1fr 34px 1fr 34px 1fr;align-items:stretch}.proof-chain article{padding:20px}.proof-chain article small{display:block;margin-bottom:8px;color:#b64a5b;font-size:11px;font-weight:900;letter-spacing:.08em}.proof-chain article b{display:block;font-size:16px;line-height:1.45}.proof-chain article p{margin:8px 0 0;color:var(--muted);font-size:13px;line-height:1.65}.proof-chain>i{display:flex;align-items:center;justify-content:center;color:#c06976;font-size:22px;font-style:normal}.state-flow-board{margin-top:28px;border:1px solid var(--line);background:#fff}.state-flow-grid{display:grid;grid-template-columns:repeat(3,1fr)}.state-flow-card{min-height:262px;padding:23px 22px;border-right:1px solid var(--line)}.state-flow-card:last-child{border-right:0}.state-flow-card>small{color:var(--blue);font-size:11px;font-weight:900;letter-spacing:.08em}.state-flow-card h3{margin:10px 0 18px;font-size:18px;line-height:1.4}.state-flow-card dl{margin:0}.state-flow-card dl>div{display:grid;grid-template-columns:43px 1fr;gap:10px;padding:9px 0;border-top:1px solid #e6edf8}.state-flow-card dt{color:#73839b;font-size:12px}.state-flow-card dd{margin:0;color:var(--ink);font-size:13px;line-height:1.5}.learning-flow{box-shadow:inset 0 3px 0 var(--blue)}.code-flow{box-shadow:inset 0 3px 0 #14a998}.portfolio-flow{box-shadow:inset 0 3px 0 #d68721}.validation-head,.validation-table article{grid-template-columns:1.05fr 1.05fr 1fr .78fr 1.05fr}.eval-result{display:inline-flex;align-items:center;width:max-content;padding:5px 8px;border:1px solid #aee0cb;background:#effbf5;color:#14705a;font-size:11px;font-style:normal;font-weight:900;white-space:nowrap}.badcase-board{margin-top:22px;border:1px solid var(--line);background:#fff}.badcase-grid{display:grid;grid-template-columns:repeat(3,1fr)}.badcase-grid article{padding:21px;border-right:1px solid var(--line)}.badcase-grid article:last-child{border-right:0}.badcase-grid small{display:block;margin-bottom:8px;color:#b64a5b;font-size:11px;font-weight:900;letter-spacing:.08em}.badcase-grid b{display:block;font-size:16px;line-height:1.45}.badcase-grid p{margin:8px 0 13px;color:var(--muted);font-size:13px;line-height:1.6}.badcase-grid i{display:block;color:#14705a;font-size:12px;font-style:normal;font-weight:800;line-height:1.5}
@media(max-width:980px){.research-board article .research-evidence{grid-column:2}.proof-chain{grid-template-columns:1fr;gap:0}.proof-chain>i{height:28px}.proof-chain article{border-bottom:1px solid #ebcbd0}.proof-chain article:last-child{border-bottom:0}.state-flow-grid,.badcase-grid{grid-template-columns:1fr}.state-flow-card,.badcase-grid article{min-height:auto;border-right:0;border-bottom:1px solid var(--line)}.state-flow-card:last-child,.badcase-grid article:last-child{border-bottom:0}.validation-head,.validation-table article{grid-template-columns:1fr 1fr}.validation-table article .eval-result{justify-self:start}}
@media(max-width:620px){.rebuild-evidence{grid-template-columns:1fr}.evidence-head,.flow-board-head,.proof-head,.badcase-head{display:block;padding:15px}.evidence-head span,.flow-board-head span,.proof-head span,.badcase-head span{display:block;margin-bottom:7px}.rebuild-evidence article{border-right:0;border-bottom:1px solid var(--line)}.rebuild-evidence article:last-child{border-bottom:0}.state-flow-card{padding:19px}.validation-head{display:none}.validation-table article{grid-template-columns:1fr;padding:17px}.validation-table article span:not(.eval-result),.validation-table article i{padding-top:8px}.validation-table article b:before{content:'场景';display:block;margin-bottom:4px;color:#74849c;font-size:10px;font-weight:800;letter-spacing:.08em}.validation-table article span:not(.eval-result):before{content:'检查';display:block;margin-bottom:4px;color:#74849c;font-size:10px;font-weight:800;letter-spacing:.08em}.validation-table article .eval-result{margin-top:9px}.proof-chain article{padding:17px}}

/* Five counterexamples and four demo paths keep the original validation layout. */
.badcase-grid{grid-template-columns:repeat(6,minmax(0,1fr))}
.badcase-grid article{grid-column:span 2;border-bottom:1px solid var(--line)}
.badcase-grid article:nth-child(n+4){grid-column:span 3;border-bottom:0}
.badcase-grid article:nth-child(3),.badcase-grid article:nth-child(5){border-right:0}
.walkthrough-reserve>div{grid-template-columns:repeat(2,minmax(0,1fr))}
.walkthrough-reserve .demo-open{display:inline-flex;align-items:center;min-height:42px;padding:10px 16px;background:var(--blue);color:#fff;font-size:13px;font-weight:800;text-decoration:none}
.walkthrough-reserve .demo-open:hover,.walkthrough-reserve .demo-open:focus-visible{background:#123d83}
.continuity-table{margin-top:22px}
@media(max-width:980px){.badcase-grid{grid-template-columns:1fr}.badcase-grid article,.badcase-grid article:nth-child(n+4){grid-column:auto;border-right:0;border-bottom:1px solid var(--line)}.badcase-grid article:last-child{border-bottom:0}}
@media(max-width:620px){.walkthrough-reserve>div{grid-template-columns:1fr}}
.fact-lanes,.track-nodes,.asset-core,.state-flow-card,.question-ladder,.intercept-draft,.proof-chain{min-width:0}.fact-lanes article,.track-nodes>div,.asset-core li,.state-flow-card dd,.question-ladder b,.question-ladder div span,.intercept p,.draft-sheet p,.proof-chain article{overflow-wrap:anywhere}