/* E5-R: shared by standalone HTML and React; all rules stay inside this shell. */
.cp-resources{--cp-bg:#faf9f3;--cp-surface:#fffef9;--cp-text:#243e32;--cp-muted:#52675b;--cp-brand:#2d6550;--cp-border:#d4decc;--cp-soft:#eaf0e4;background:var(--cp-bg);color:var(--cp-text);font:15px/1.8 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;min-height:100vh}
.cp-resources *{box-sizing:border-box}.cp-resources a{color:inherit;text-decoration:none}.cp-resources button{font:inherit;cursor:pointer}.cp-resources :is(a,button,summary):focus-visible{outline:3px solid var(--cp-brand);outline-offset:3px}.cp-resources :is(h1,h2,h3,p){margin:0}.cp-resources p,.cp-resources small{color:var(--cp-muted)}.cp-resources h1{font-family:"Songti SC","STSong",serif;font-weight:600;letter-spacing:-.6px}.cp-resources h2{font-size:21px;font-weight:650;line-height:1.5}.cp-resources h3{font-size:18px;line-height:1.55}.cp-resources img{max-width:100%}
.cp-resources .cp-resource-header{height:80px;background:var(--cp-surface);border-bottom:1px solid var(--cp-border);display:flex;align-items:center;justify-content:space-between;padding:0 max(40px,calc((100vw - 1200px)/2));gap:24px}.cp-resources .cp-resource-brand{display:flex;align-items:center;gap:10px;font-size:23px;font-weight:750;letter-spacing:-1px;white-space:nowrap}.cp-resources .cp-resource-brand img{width:33px;height:33px;border-radius:9px}.cp-resources .cp-resource-header nav{display:flex;align-items:center;gap:30px;font-size:15px}.cp-resources .cp-resource-header a{display:inline-flex;align-items:center;min-height:44px}.cp-resources [aria-current=page]{color:var(--cp-brand);font-weight:650}.cp-resources .cp-resource-main{max-width:1200px;margin:auto;padding:38px 0 56px}.cp-resources .cp-breadcrumbs{display:flex;align-items:center;gap:12px;color:var(--cp-muted);font-size:13px;margin-bottom:28px}.cp-resources .cp-breadcrumbs a{text-decoration:underline;text-underline-offset:4px}.cp-resources .cp-eyebrow{display:block;font-size:12px;letter-spacing:1px;font-weight:650;color:var(--cp-brand);margin-bottom:8px}.cp-resources .cp-resource-hero{padding-bottom:28px;display:grid;grid-template-columns:1fr 290px;gap:60px;align-items:center}.cp-resources .cp-resource-hero h1{font-size:40px;line-height:1.5;margin-bottom:14px}.cp-resources .cp-resource-hero p{font-size:16px;line-height:1.9}.cp-resources .cp-resource-helper{border-left:1px solid var(--cp-border);padding-left:27px}.cp-resources .cp-resource-helper p{font-size:14px;margin:10px 0 16px}.cp-resources .cp-resource-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:10px 17px;border:1px solid #708576;border-radius:10px;background:var(--cp-surface);color:var(--cp-text);font-size:15px;font-weight:600;line-height:1.8;white-space:normal;text-align:center}.cp-resources .cp-primary{background:var(--cp-brand);color:#fff;border-color:var(--cp-brand)}.cp-resources .cp-resource-button:hover{filter:brightness(.96)}.cp-resources .cp-mobile-br{display:none}
.cp-resources .cp-resource-categories{display:flex;flex-wrap:wrap;gap:8px;padding:26px 0;margin-bottom:26px;border-block:1px solid var(--cp-border)}.cp-resources .cp-resource-categories a{min-height:44px;padding:10px 16px;border:1px solid var(--cp-border);border-radius:9px;background:var(--cp-surface);font-size:14px}.cp-resources .cp-resource-categories [aria-current=page],.cp-resources .cp-resource-pagination [aria-current=page]{background:var(--cp-soft);border-color:var(--cp-brand)}.cp-resources .cp-section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}.cp-resources .cp-section-head>span{font-size:13px;color:var(--cp-muted)}.cp-resources .cp-section-head>a{font-size:14px;color:var(--cp-brand);text-decoration:underline;text-underline-offset:4px}.cp-resources .cp-resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.cp-resources .cp-resource-card{border:1px solid var(--cp-border);border-radius:18px;background:var(--cp-surface);min-width:0;transition:border-color .15s}.cp-resources .cp-resource-card:hover{border-color:var(--cp-brand)}.cp-resources .cp-resource-card>a{padding:24px;display:flex;flex-direction:column;align-items:flex-start;min-height:290px;height:100%;overflow-wrap:anywhere}.cp-resources .cp-tag{display:inline-flex;border-radius:6px;padding:3px 9px;font-size:12px;font-weight:500;color:var(--cp-brand);background:var(--cp-soft)}.cp-resources .cp-resource-card h2{font-size:20px;line-height:1.6;margin:16px 0 12px}.cp-resources .cp-resource-card p{font-size:14px;line-height:1.8;margin-bottom:24px}.cp-resources .cp-resource-card small{font-size:13px;margin-top:auto}.cp-resources .cp-resource-pagination{display:flex;align-items:center;justify-content:center;gap:10px;margin:28px 0 36px;flex-wrap:wrap}.cp-resources .cp-resource-pagination a{min-width:44px;min-height:44px;text-align:center;padding:8px 13px;border:1px solid var(--cp-border);border-radius:9px;background:var(--cp-surface)}.cp-resources .cp-resource-cta{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:30px;background:var(--cp-soft);border-radius:18px}.cp-resources .cp-resource-cta p{font-size:14px;margin-top:8px}.cp-resources .cp-resource-cta>a{flex-shrink:0}.cp-resources .cp-resource-message{grid-column:1/-1;padding:32px;background:var(--cp-soft);border-radius:12px}.cp-resources .cp-resource-message :is(a,button){display:block;margin-top:16px}.cp-resources .cp-resource-footer{max-width:1200px;margin:auto;padding:24px 0;border-top:1px solid var(--cp-border);font-size:12px;color:var(--cp-muted);display:flex;justify-content:space-between;gap:16px}.cp-resources .cp-resource-footer nav{display:flex;flex-wrap:wrap;gap:16px}.cp-resources .cp-resource-footer a{text-decoration:underline;text-underline-offset:4px}
.cp-resources .cp-article-layout{display:grid;grid-template-columns:minmax(0,780px) minmax(0,300px);gap:76px;align-items:start}.cp-resources .cp-article-layout>article{min-width:0}.cp-resources .cp-article-header h1{font-size:38px;line-height:1.5;margin:17px 0;overflow-wrap:anywhere}.cp-resources .cp-article-header p{font-size:17px;line-height:1.9}.cp-resources .cp-article-meta{display:flex;gap:14px;flex-wrap:wrap;align-items:center;color:var(--cp-muted);font-size:13px}.cp-resources .cp-article-cover{display:block;width:100%;max-height:200px;object-fit:contain;object-position:left center;margin-top:24px;border-radius:12px;background:var(--cp-surface)}.cp-resources .cp-article-body{margin-top:28px;border-top:1px solid var(--cp-border);padding-top:25px;font-size:16px;line-height:2;overflow-wrap:anywhere;overflow-x:auto}.cp-resources .cp-article-body p{margin:16px 0;color:var(--cp-text)}.cp-resources .cp-article-body h2{font-size:24px;margin:30px 0 12px;scroll-margin-top:24px}.cp-resources .cp-article-body h3{font-size:20px;margin-top:26px;scroll-margin-top:24px}.cp-resources .cp-article-body :is(ul,ol){padding-left:24px}.cp-resources .cp-article-body blockquote{border-left:3px solid var(--cp-brand);background:var(--cp-soft);border-radius:0 10px 10px 0;padding:18px 20px;margin:20px 0;font-size:15px}.cp-resources .cp-article-body a{color:var(--cp-brand);text-decoration:underline;text-underline-offset:4px}.cp-resources .cp-article-body table{border-collapse:collapse;width:100%;font-size:14px}.cp-resources .cp-article-body :is(td,th){padding:10px;border:1px solid var(--cp-border);text-align:left;min-width:90px}.cp-resources .cp-article-body th{background:var(--cp-soft)}.cp-resources .cp-article-body pre{white-space:pre-wrap;background:var(--cp-soft);padding:18px;border-radius:10px}.cp-resources .cp-article-body img{height:auto}.cp-resources .cp-article-layout .cp-resource-cta{margin-top:28px;display:block}.cp-resources .cp-article-layout .cp-resource-cta>a{margin-top:18px}.cp-resources .cp-resource-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:16px;font-size:14px;color:var(--cp-brand)}.cp-resources .cp-resource-actions a{min-height:44px;display:inline-flex;align-items:center;text-decoration:underline;text-underline-offset:4px}.cp-resources .cp-reading-aside{position:sticky;top:24px;display:grid;gap:24px}.cp-resources .cp-reading-card{background:var(--cp-surface);border:1px solid var(--cp-border);border-radius:18px;padding:24px;min-width:0}.cp-resources .cp-reading-card.cp-soft{background:var(--cp-soft)}.cp-resources .cp-reading-card p{font-size:14px;margin:13px 0 18px}.cp-resources .cp-toc a{display:block;font-size:14px;color:var(--cp-brand);padding:10px 0;border-bottom:1px solid var(--cp-border);line-height:1.8}.cp-resources .cp-toc{max-height:65vh;overflow:auto}.cp-resources .cp-mobile-toc{display:none}.cp-resources .cp-related{margin-top:46px;padding-top:32px;border-top:1px solid var(--cp-border)}
@media(min-width:761px) and (max-width:1279px){.cp-resources .cp-resource-main{padding:32px}.cp-resources .cp-resource-footer{padding:24px 32px}.cp-resources .cp-resource-hero{gap:30px}.cp-resources .cp-article-layout{gap:32px;grid-template-columns:minmax(0,1fr) 240px}.cp-resources .cp-resource-grid{gap:16px}}
@media(max-width:760px){.cp-resources .cp-resource-header{height:68px;padding:0 20px;gap:12px}.cp-resources .cp-resource-brand{font-size:21px}.cp-resources .cp-resource-header nav{gap:15px;font-size:13px}.cp-resources .cp-resource-header .cp-desktop-link{display:none}.cp-resources .cp-teacher-return{font-size:12px;max-width:72px;line-height:1.4}.cp-resources:has(.cp-teacher-return) .cp-resource-header nav>a:first-child{display:none}.cp-resources .cp-resource-main{padding:24px 20px 36px}.cp-resources .cp-breadcrumbs{font-size:12px;margin-bottom:22px}.cp-resources .cp-resource-hero{display:block;padding-bottom:20px}.cp-resources .cp-resource-hero h1{font-size:30px;margin-bottom:12px}.cp-resources .cp-mobile-br{display:block}.cp-resources .cp-resource-hero p{font-size:14px;line-height:1.9}.cp-resources .cp-resource-helper{display:none}.cp-resources .cp-resource-categories{padding:20px 0;margin-bottom:22px;gap:8px}.cp-resources .cp-resource-categories a{padding:9px 12px}.cp-resources h2{font-size:19px}.cp-resources .cp-resource-grid{grid-template-columns:1fr;gap:16px}.cp-resources .cp-resource-card>a{padding:22px;min-height:0}.cp-resources .cp-resource-card h2{font-size:19px;margin:14px 0 10px}.cp-resources .cp-resource-card p{font-size:14px;margin-bottom:21px}.cp-resources .cp-resource-card small{font-size:12px}.cp-resources .cp-resource-cta{display:block;padding:23px 21px}.cp-resources .cp-resource-cta h2{font-size:20px}.cp-resources .cp-resource-cta p{font-size:14px;margin-bottom:19px}.cp-resources .cp-resource-cta .cp-resource-button{width:100%;font-size:14px}.cp-resources .cp-resource-footer{padding:22px 20px;flex-direction:column;gap:12px}.cp-resources .cp-resource-footer nav{gap:12px}.cp-resources .cp-article-layout{display:block}.cp-resources .cp-article-header h1{font-size:29px;line-height:1.5;margin:15px 0;letter-spacing:-.4px}.cp-resources .cp-article-header p{font-size:15px;line-height:1.9}.cp-resources .cp-article-meta{font-size:12px;gap:10px}.cp-resources .cp-reading-aside{display:none}.cp-resources .cp-mobile-toc{display:block;border:1px solid var(--cp-border);border-radius:12px;padding:14px 17px;margin-top:23px;background:var(--cp-surface);font-size:14px}.cp-resources .cp-mobile-toc summary{cursor:pointer;min-height:28px}.cp-resources .cp-mobile-toc a{display:block;padding:10px 0;color:var(--cp-brand);font-size:14px}.cp-resources .cp-article-cover{max-height:160px}.cp-resources .cp-article-body{font-size:16px;line-height:2;margin-top:24px;padding-top:17px}.cp-resources .cp-article-body h2{font-size:22px;margin-top:25px}.cp-resources .cp-related{margin-top:32px;padding-top:25px}.cp-resources .cp-related .cp-section-head{display:block}.cp-resources .cp-related .cp-section-head a{display:inline-flex;margin-top:12px}.cp-resources .cp-resource-pagination{gap:8px}}