/* 新模块复用纸色与字体，所有正文样式限定在自己的范围内。 */
.thinking-page{max-width:1040px;margin:0 auto;padding-bottom:28px;overflow-wrap:anywhere}
.thinking-nav{display:flex;flex-wrap:wrap;gap:12px 28px;border-bottom:1px solid var(--line);padding:0 0 14px;font-size:14px}
.thinking-nav a{display:inline-flex;align-items:center;min-height:44px}
.thinking-heading{padding:45px 0 32px;max-width:800px}
.thinking-heading h1{font:600 44px/1.45 var(--serif);margin:0 0 20px;letter-spacing:1px}
.thinking-heading>p:not(.eyebrow){font-size:18px;line-height:1.9;max-width:680px;margin:0;color:var(--muted)}
.thinking-heading.compact h1{font-size:36px}
.thinking-entries{display:grid;grid-template-columns:1.4fr 1fr;gap:42px;align-items:center;margin:10px 0 40px}
.thinking-primary-entry{background:var(--wash);padding:30px;border-radius:4px}
.thinking-primary-entry>span,.thinking-feature>span{font-size:13px;color:var(--red)}
.thinking-entries h2{font:600 27px/1.5 var(--serif);margin:9px 0 12px}
.thinking-entries h2 span{font-family:var(--sans);float:right;margin-left:10px}
.thinking-entries p{font-size:16px;margin:0;color:var(--muted)}
.thinking-secondary-entry{padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.thinking-resume{border-top:1px solid var(--line);padding:24px 0}
.thinking-resume h2{font:600 23px var(--serif);margin:0 0 13px}
.thinking-resume>a,.thinking-back,.thinking-old-link{color:var(--red);text-decoration:underline;text-underline-offset:4px;display:inline-block;min-height:44px;padding:9px 0}
.thinking-quiet{color:var(--muted);font-size:14px;line-height:1.85}
.thinking-status{padding:16px 20px;background:#f2e3ce;border:1px solid #bd9e73;font-size:15px;line-height:1.8}
.thinking-status[hidden]{display:none}
.thinking-backup,.thinking-sources{border-top:1px solid var(--line);padding:19px 0;margin-top:28px;font-size:14px}
.thinking-backup summary,.thinking-sources summary{cursor:pointer;min-height:44px;color:var(--red);padding:8px 0}
.thinking-backup p,.thinking-sources p{max-width:760px}
.thinking-feature{padding:24px 0 35px;border-bottom:1px solid var(--line);margin-bottom:30px}
.thinking-feature h2{font:600 30px var(--serif);margin:10px 0 12px}
.thinking-feature p{font-size:16px}
.thinking-group{margin:35px 0 48px}
.thinking-group>h2{font:600 27px var(--serif);margin:0 0 13px}
.thinking-model-row{display:grid;grid-template-columns:minmax(0,1fr) 170px;align-items:start;gap:24px;padding:20px 0;border-bottom:1px solid var(--line)}
.thinking-model-row h3{font-size:19px;margin:0 0 7px}
.thinking-model-row h3 a{display:inline-flex;gap:18px;min-height:44px;align-items:center;color:var(--red)}
.thinking-model-row p{margin:0;color:var(--muted);font-size:15px}
.thinking-state{font-size:14px;color:var(--red);line-height:1.8}
.thinking-state small{font-size:12px}
.thinking-choices{max-width:800px}
.thinking-choices>a{display:block;padding:25px 0;border-bottom:1px solid var(--line)}
.thinking-choices h2{font:600 25px/1.6 var(--serif);margin:0 0 8px}
.thinking-choices h2 span{color:var(--red)}
.thinking-choices p{color:var(--muted);font-size:16px;margin:0}
.thinking-recommendation,.thinking-information{max-width:800px;border-top:1px solid var(--line);padding:27px 0;margin:0 0 15px;font-size:17px;line-height:1.9}
.thinking-recommendation h2,.thinking-information h2{font:600 27px var(--serif);margin:0 0 15px}
.thinking-information{background:var(--wash);padding:24px;border:0;border-radius:3px}
.thinking-article{max-width:790px;margin:0 auto}
.thinking-article .thinking-heading{padding-bottom:24px}
.thinking-article .thinking-english{font-size:14px!important;letter-spacing:1px;margin:-8px 0 20px!important}
.thinking-article .thinking-subtitle{color:var(--ink)!important;font-size:21px!important}
.thinking-article .thinking-meta{display:flex;gap:12px 24px;flex-wrap:wrap;margin-top:20px!important;font-size:13px!important}
.thinking-jump{display:flex;flex-wrap:wrap;gap:10px 24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:9px 0;font-size:14px}
.thinking-jump a{color:var(--red);min-height:44px;display:inline-flex;align-items:center}
.thinking-section{padding-top:40px;margin-bottom:17px;scroll-margin-top:24px;font-size:18px;line-height:1.95}
.thinking-section h2{font:600 29px/1.55 var(--serif);margin:0 0 22px}
.thinking-section h3{font-size:20px;line-height:1.65;margin:0 0 12px}
.thinking-section p{margin:0 0 20px}
.thinking-section li{margin-bottom:12px}
.thinking-section ul{padding-left:1.2em;margin:0 0 20px}
.thinking-section .thinking-note{font-size:15px;color:var(--muted);line-height:1.9;margin:20px 0 0}
.thinking-meaning>p:first-of-type{padding:24px 28px;background:var(--wash);font:600 23px/1.9 var(--serif);border-radius:3px}
.thinking-concepts{margin:0}
.thinking-concepts>div{display:grid;grid-template-columns:112px minmax(0,1fr);border-top:1px solid var(--line);padding:17px 0;gap:24px}
.thinking-concepts dt{font-weight:600;color:var(--red)}
.thinking-concepts dd{margin:0}
.thinking-concepts dd strong{font-weight:500}
.thinking-concepts dd p{font-size:16px;color:var(--muted);margin:5px 0 0}
.thinking-comparison{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-top:25px}
.thinking-comparison>div{border-top:1px solid var(--line);padding-top:18px}
.thinking-comparison h3{color:var(--red)}
.thinking-reasoning{list-style:none;counter-reset:reasoning;padding:0;margin:0}
/* 六步共用一条细轴线，不用六张卡片；编号与标题构成扫读主线。 */
.thinking-reasoning>li{position:relative;counter-increment:reasoning;padding:12px 0 30px 60px;margin:0}
.thinking-reasoning>li::before{content:counter(reasoning,decimal-leading-zero);position:absolute;left:0;top:12px;width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;background:var(--paper);font:23px/1 var(--serif);color:var(--red)}
.thinking-reasoning>li:not(:last-child)::after{content:"";position:absolute;left:19px;top:52px;bottom:-10px;width:1px;background:var(--line)}
.thinking-reasoning>li h3{font-size:22px;line-height:1.6;margin-bottom:16px}
.thinking-reasoning>li p{margin-bottom:14px}
.thinking-info-label{display:inline-block;vertical-align:baseline;white-space:nowrap;font:500 13px/1.6 var(--sans);color:var(--ink);border:1px solid #aaa99e;border-radius:3px;padding:1px 7px;margin:0 7px 4px 0}
.thinking-info-label[data-info-state="待验证"]{border-style:dashed;color:var(--muted)}
.thinking-info-label[data-info-state="因此推导"]{background:var(--wash);border-color:transparent;color:var(--red)}
.thinking-step-evidence{color:#575c53;font-size:16px}
.thinking-step-inference{color:var(--ink)}
.thinking-comparison h3 small{font-size:13px;font-weight:400;color:var(--muted)}
.thinking-case-constraint{padding:16px 0 0;border-top:1px solid var(--line)}
.thinking-case-constraint h3{margin-bottom:8px}
.thinking-case-constraint ul{margin-bottom:0}
/* 短结论仍保留足够阅读高度，避免原有段落定位提前进入下一节。 */
.thinking-verify{border-top:1px solid var(--line);padding-top:24px;min-height:190px}
.thinking-verify h2{font-size:25px;margin-bottom:12px}
.thinking-misuse{padding:19px 0;border-top:1px solid var(--line)}
.thinking-compare{border-top:1px solid var(--line);padding-top:22px;margin-top:30px}
.thinking-compare summary{cursor:pointer;min-height:44px;color:var(--red);padding:8px 0}
.thinking-compare summary h2{display:inline;font-size:24px}
.thinking-compare summary span{display:block;font-size:15px;color:var(--muted);margin-top:12px}
.thinking-compare[open]>p:first-of-type{margin-top:22px}
.thinking-memory{margin-top:36px;padding:27px 28px;background:var(--wash);border-radius:3px}
.thinking-memory h2{font-size:27px}
.thinking-memory-questions{padding-left:1.3em}
.thinking-memory .thinking-note{white-space:pre-line;border-top:1px solid #d3ccbf;padding-top:18px;margin-top:22px}
.thinking-article-footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;border-top:1px solid var(--line);margin-top:25px;padding-top:22px;font-size:14px}
.thinking-article-footer a{color:var(--red);min-height:44px;display:inline-flex;align-items:center}
.thinking-article-footer p{width:100%;color:var(--muted);font-size:13px;margin:8px 0}
.thinking-search-results,.home-thinking-entry{border-top:1px solid var(--line);padding:25px 0;margin:20px 0}
.thinking-search-results h2,.home-thinking-entry h2{font:600 25px var(--serif);margin:0 0 16px}
.thinking-search-results a{display:block;padding:12px 0}.thinking-search-results p,.home-thinking-entry p{color:var(--muted)}
.thinking-search-results span{color:var(--red);font-size:13px}.home-thinking-entry>a{color:var(--red);display:inline-flex;min-height:44px;align-items:center}
/* 触屏保留解释和例子；对比重排，单行段落不通过裁切或固定高度制造。 */
@media(max-width:700px){
  .thinking-nav{font-size:13px;gap:8px 20px;padding-bottom:8px}
  .thinking-heading{padding:27px 0 23px}.thinking-heading h1{font-size:34px}.thinking-heading.compact h1{font-size:30px}
  .thinking-heading>p:not(.eyebrow){font-size:16px}.thinking-heading .eyebrow{font-size:11px}
  .thinking-entries{grid-template-columns:1fr;gap:22px;margin-bottom:27px}.thinking-primary-entry{padding:24px}.thinking-entries h2{font-size:25px}
  .thinking-model-row{grid-template-columns:minmax(0,1fr);gap:10px}.thinking-model-row h3{font-size:19px}.thinking-state small{margin-left:0}
  .thinking-choices h2{font-size:23px}.thinking-feature h2{font-size:27px}
  .thinking-article .thinking-subtitle{font-size:19px!important}.thinking-article .thinking-meta{font-size:12px!important}
  .thinking-section{padding-top:30px;font-size:17px;line-height:1.9;margin-bottom:12px}.thinking-section h2{font-size:25px;margin-bottom:18px}.thinking-section h3{font-size:19px}
  .thinking-section .thinking-note{font-size:14px}.thinking-meaning>p:first-of-type{font-size:21px;padding:20px}
  .thinking-concepts>div{grid-template-columns:1fr;gap:5px}.thinking-concepts dd p{font-size:16px}
  .thinking-comparison{grid-template-columns:1fr;gap:10px}.thinking-reasoning>li{padding:10px 0 25px 43px}.thinking-reasoning>li::before{font-size:19px;width:30px;height:30px;top:10px}
  .thinking-reasoning>li:not(:last-child)::after{left:15px;top:42px;bottom:-8px}.thinking-reasoning>li h3{font-size:20px;line-height:1.6;margin-bottom:13px}
  .thinking-step-evidence{font-size:16px}.thinking-info-label{font-size:12px;padding:1px 6px;margin-right:5px}
  .thinking-memory{padding:23px 20px}.thinking-memory h2{font-size:25px}.thinking-compare summary h2{font-size:23px}
  .thinking-page .button{font-size:14px!important;min-height:44px}
  .main-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0}.main-nav a{font-size:10px;min-width:0}
  /* 仅在此详情页减弱移动导航，保留全部链接和可触控面积。 */
  body:has(.thinking-article) .main-nav .icon{display:none}
  body:has(.thinking-article) .main-nav a{min-height:44px;justify-content:center;font-size:11px;padding:8px 4px}
  .shell:has(.thinking-article) .topbar{height:54px}
  .thinking-page:has(>.thinking-article)>.thinking-nav{font-size:12px;gap:6px 18px;padding-bottom:4px}
  .thinking-article .thinking-heading{padding-top:22px;padding-bottom:18px}
}