/* 详情正文（首页弹窗与静态详情页共用，沿用 DSH 的可读性样式） */
.overview-section{margin:0 0 24px}
.overview-section h3{font-size:16px;line-height:1.4;letter-spacing:0;margin:0 0 14px;color:#252931;font-weight:700}
.overview-section ul{margin:0;padding:0;list-style:none;display:grid;gap:14px}
.overview-section li{position:relative;padding-left:18px;font-size:14px;line-height:1.85;color:#555d67;overflow-wrap:break-word}
.overview-section li::before{content:"";position:absolute;left:0;top:.8em;width:5px;height:5px;background:#7951df;border-radius:50%}
.overview-section li strong{display:block;color:#252931;font-weight:650;margin-bottom:2px}
.overview-section li span{display:block}
.overview-notes{padding:18px 20px;background:#f5f6f8;border-radius:8px}
.overview-notes li::before{background:#9299a2}
.overview-empty{font-size:14px;color:#747a83;line-height:1.8}
.modal-detail-block p#modal-summary{display:block;-webkit-line-clamp:unset;max-height:none;color:#414954;font-size:15px;line-height:1.85;white-space:normal}
.modal-detail-block:has(#modal-summary){padding-top:20px;margin-bottom:24px}
.modal-body .overview-section h3{font-size:16px;letter-spacing:0;margin:0 0 14px}
.modal-body .overview-section ul{margin:0;padding:0}
.modal-body .overview-section li{font-size:14px;margin:0;line-height:1.85}
.modal-body .overview-section li strong{color:#252931}
.modal-body h2#modal-title{font-size:clamp(25px,4vw,38px);line-height:1.2;letter-spacing:-.035em;overflow-wrap:anywhere}
.modal-image{display:none}
.modal-image.has-image{display:block}
@media(max-width:560px){.overview-section li,.modal-body .overview-section li{font-size:14px}.overview-notes{padding:16px}.modal-detail-block p#modal-summary{font-size:15px}}

/* 生成的静态详情页 */
.detail-page main{padding:58px 0 80px}
.detail-page .back{font-size:13px;color:#747a83;text-decoration:none}
.detail-page h1{font-size:clamp(36px,7vw,64px);line-height:1.02;letter-spacing:-.065em;margin:32px 0 12px}
.detail-page .slug{font:13px "DM Mono",monospace;color:#747a83}
.detail-page .summary{font-size:18px;line-height:1.65;color:#5f656d;margin:28px 0}
.detail-page .facts{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid #dedfdf;margin:36px 0}
.detail-page .fact{padding:18px 12px;border-right:1px solid #dedfdf}
.detail-page .fact:nth-child(3n){border:0}
.detail-page .fact b{display:block;font-size:19px}
.detail-page .fact span{font-size:11px;color:#747a83}
.detail-page .actions{display:flex;gap:12px;margin-top:34px;flex-wrap:wrap}
@media(max-width:600px){
  .detail-page main{padding-top:36px}
  .detail-page .facts{grid-template-columns:repeat(2,1fr)}
  .detail-page .fact:nth-child(3n){border-right:1px solid #dedfdf}
  .detail-page .fact:nth-child(2n){border-right:0}
}

/* 详情页海报 */
.detail-poster{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:10px;border:1px solid #e3e4e6;margin:20px 0 4px;background:#f0f1f2}
.topic-header{height:60px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.topic-page main{padding:35px 0 55px}.topic-page h1{font-size:clamp(27px,4vw,42px);line-height:1.25;letter-spacing:-.04em;margin:16px 0}
.topic-breadcrumb,.detail-breadcrumb{font-size:11px;line-height:1.8;color:var(--muted);margin:18px 0 10px}.topic-breadcrumb a,.detail-breadcrumb a{color:var(--muted)}
.topic-lead{font-size:17px;color:#555d67;margin:0 0 16px;line-height:1.8}.topic-body{font-size:14px;line-height:1.95;max-width:850px;color:#555d67;margin:0 0 14px}
.topic-observe{border-left:2px solid #cfbfe8;padding-left:18px;max-width:850px;margin:24px 0 30px}.topic-observe h2,.observation-guide h2{font-size:17px;margin:0 0 10px;letter-spacing:-.02em}
.topic-observe ul,.observation-guide ul{padding-left:20px;line-height:1.9;color:#555d67;font-size:14px}
.topic-section-title{font-size:20px;margin:28px 0 16px}.topic-section-title span{font-size:13px;color:var(--muted);margin-left:5px}
.topic-item-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.topic-pills{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0}.topic-pill{font-size:12px;border:1px solid var(--line);padding:8px 12px;border-radius:6px}
.topic-pill:hover,.topic-guides a:hover{color:var(--three)}.topic-guides{font-size:12px;line-height:1.8;margin-top:24px}.topic-guides summary{min-height:40px;cursor:pointer}.topic-guides nav{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted)}
.observation-guide{max-width:850px;margin:28px 0}.observation-guide p{font-size:14px;line-height:1.9;color:#555d67}.observation-guide a{color:var(--three);text-decoration:underline}
@media(max-width:760px){.topic-item-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.topic-header,.topic-page main{padding-left:18px;padding-right:18px}.topic-page h1{font-size:28px;line-height:1.35}.detail-page .detail-breadcrumb{margin-top:18px}.detail-page:not(.topic-page) main{padding-left:18px;padding-right:18px}.topic-page .site-footer{padding-left:18px;padding-right:18px}}
@media(max-width:480px){.topic-item-grid{grid-template-columns:1fr}}

/* Science education hub: concrete tasks, readable notes, printable worksheet. */
.learning-entry{display:inline-flex;align-items:center;gap:16px;min-height:44px;margin:0 0 18px;font-size:14px;color:var(--three);text-decoration:underline;text-underline-offset:4px}
.learn-paths{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:30px 0 40px}
.learn-path{border:1px solid var(--line);border-radius:10px;padding:24px;min-width:0}
.learning-page h2{font-size:20px;line-height:1.5;letter-spacing:-.025em;margin:0 0 14px}
.learn-path p,.learn-routine li,.learn-boundaries dd{font-size:14px;line-height:1.9;color:#555d67}
.learn-path ol{padding-left:22px;margin:20px 0}.learn-path li{padding-left:4px}.learn-path li a{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:44px;font-size:14px;line-height:1.6}.learn-path li a span{font-size:11px;color:var(--muted);flex-shrink:0}
.learn-path .learn-task{padding-top:18px;border-top:1px solid var(--line);margin-bottom:0}.learn-task strong{color:var(--ink)}
.learn-routine,.learn-worksheet,.learn-boundaries,.learn-about{margin:36px 0;max-width:950px}.learn-routine ol{padding-left:22px}.learn-routine li{padding-left:6px;margin:12px 0}.learn-routine li p{margin:2px 0}.learn-routine strong,.learn-boundaries dt{color:var(--ink);font-weight:700}
.learn-worksheet{padding:24px;background:#f5f6f8;border-radius:10px}.learn-worksheet pre{font-family:inherit;font-size:14px;line-height:2.3;white-space:pre-wrap;overflow-wrap:anywhere;margin:0 0 16px}.learn-worksheet button{background:white;cursor:pointer;min-height:44px}
.learn-boundaries dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.learn-boundaries dd{margin:6px 0 0}.learn-boundaries dt{font-size:15px}.learning-page .topic-pill{min-height:44px;display:inline-flex;align-items:center}
@media(max-width:760px){.learn-paths{grid-template-columns:1fr;gap:16px}.learn-path{padding:20px}.learn-boundaries dl{grid-template-columns:1fr}.learn-worksheet{padding:18px}}
@media print{.learning-page header,.learning-page footer,.learning-page .topic-breadcrumb,.learning-page .topic-pills,.learning-page .back,.learn-worksheet button{display:none}.learning-page main{padding:0!important;max-width:100%}.learn-paths{display:block}.learn-path,.learn-worksheet,.learn-boundaries dl>div{break-inside:avoid}.learn-path{margin-bottom:16px}.learn-path li a span{display:none}.learn-worksheet{background:white;border:1px solid #aaa}.learning-page h1{font-size:26px}.learning-page a{text-decoration:none;color:inherit}}

.footer-learning{padding-bottom:24px}
.footer-learning .learning-entry{margin:0}