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/* 清楚阅读优先：路由切换立即回到页首，弱化文字仍保持可辨认。 */
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@media(max-width:760px){.hero-learn h1{font-size:25px;line-height:1.5}.product-tab strong{font-size:14px}.tab-label{display:block;font-size:11px;font-weight:500;margin-top:3px}.product-tab small{display:none}}

/* Product-first tutorial center */
.center-wrap{max-width:1180px;margin:0 auto;padding:0 28px 45px}.center-hero{text-align:center;padding:60px 24px 38px}.center-eyebrow{color:#df8152;font-size:13px;font-weight:600;letter-spacing:.05em}.center-hero h1{font-size:44px;line-height:1.4;margin:20px 0 16px;letter-spacing:-1px}.center-hero p,.center-feature p,.center-category-title p{color:#6e6b79;line-height:1.9}.center-product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.center-product{position:relative;display:block;background:white;border:1px solid #efe6e1;padding:30px;border-radius:24px;color:#232129;transition:box-shadow .15s,border-color .15s}.center-product:hover{border-color:#f0af8f;box-shadow:0 8px 26px #d57e520c}.center-mark{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:16px;background:#fcf4f0;color:#e7824f;font-size:32px}.claude .center-mark,.center-mark.claude{background:#fbefeb;color:#da7756}.chatgpt .center-mark,.center-mark.chatgpt{background:#eaf8f1;color:#13a482}.center-status{font-size:12px;color:#77717f;border-radius:20px;background:#f5f1ef;padding:5px 10px;display:inline-block}.center-product>.center-status{position:absolute;top:36px;right:22px}.center-status.ready{background:#fff3ed;color:#da7d4f}.center-product h2{font-size:23px;margin:22px 0 12px}.center-product p{font-size:14px;color:#77717e;line-height:1.8;min-height:50px}.center-card-link{display:block;margin-top:24px;color:#d27b50;font-size:14px;font-weight:600}.center-feature{display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center;border:1px solid #efe4df;border-radius:24px;background:#fff;padding:32px;margin-top:36px}.center-feature h2{font-size:28px;margin:13px 0}.center-feature img{display:block;width:100%;height:auto;border-radius:14px}.center-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.center-actions .btn{font-size:14px;padding:12px 20px}.center-footnote{font-size:13px;color:#85808f;text-align:center;margin:25px 0}.center-breadcrumb{display:flex;gap:12px;align-items:center;margin:30px 0;color:#787181;font-size:13px}.center-breadcrumb a,.center-back{color:#d27c51}.center-category-title{display:flex;align-items:center;gap:18px;margin:35px 0 25px}.center-category-title h1{font-size:32px;margin:0 0 8px}.center-switch{display:flex;gap:12px;margin:25px 0}.center-switch a{border:1px solid #ece5e1;border-radius:20px;padding:9px 20px;background:#fff;color:#706779;font-size:14px}.center-switch a[aria-current]{background:#fff2ec;color:#d27c51;border-color:#f8d6c5}.center-course-list{display:grid;gap:18px}.center-course{display:flex;gap:22px;padding:28px;background:white;border:1px solid #ede6e2;border-radius:22px}.center-course h2{font-size:23px;margin:13px 0 9px}.center-course p{color:#716b7a;line-height:1.8;font-size:14px}.center-course-icon{display:grid;place-items:center;flex-shrink:0;width:48px;height:48px;background:#fcf3ef;color:#de8153;border-radius:15px;font-size:25px}.center-back{display:inline-block;margin-top:28px;font-size:14px}
@media(max-width:760px){.center-wrap{padding:0 18px 30px}.center-hero{padding:35px 20px 25px}.center-hero h1{font-size:29px}.center-product-grid{gap:10px}.center-product{padding:18px 10px;border-radius:16px;text-align:center}.center-product>.center-status{position:static;margin-top:13px;font-size:10px;padding:4px 7px}.center-mark{display:grid;margin:0 auto;width:42px;height:42px;font-size:27px}.center-product h2{font-size:15px;line-height:1.6;margin:14px 0 8px}.center-product p{display:none}.center-card-link{font-size:11px;margin-top:14px}.center-feature{grid-template-columns:1fr;padding:22px;gap:23px;margin-top:22px}.center-feature h2{font-size:24px}.center-feature img{max-width:500px}.center-category-title h1{font-size:26px}.center-category-title>.center-mark{margin:0}.center-course{padding:22px 18px;gap:13px}.center-course h2{font-size:20px}.center-course-icon{width:35px;height:35px}.center-actions{gap:8px}.center-actions .btn{font-size:13px;padding:11px 15px}.center-footnote{line-height:1.9}.center-switch{gap:8px}.center-switch a{padding:8px 15px}}

.center-product-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.center-product{padding:26px 20px}.center-product h2{font-size:21px}.center-product>.center-status{position:static;margin-left:8px;font-size:11px}.center-product p{min-height:52px}@media(max-width:760px){.center-product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.center-product{padding:20px 12px}.center-product h2{font-size:16px}.center-product>.center-status{margin-left:0}.center-product p{display:none}}

.center-mark svg{width:30px;height:30px;display:block}.claudecode .center-mark,.center-mark.claudecode{background:#fbefeb;color:#da7756}.codex .center-mark,.center-mark.codex{background:#eaf8f1;color:#13a482}@media(max-width:760px){.center-mark svg{width:25px;height:25px}}