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:root{--bg:#f8f9f5;--paper:#fff;--ink:#1c2d28;--muted:#66736c;--accent:#266f53;--soft:#e3eee6;--line:#dce3dc;--dark:#173d2f;--serif:Georgia,"Noto Serif CJK SC","Songti SC",serif;--sans:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;--radius:18px}
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h3{font-size:16px;margin-bottom:12px}.aside p{font-size:12px;color:var(--muted);line-height:1.8}.aside .button{width:100%;font-size:12px;margin-top:7px;padding:10px}.aside .text-link{font-size:12px;margin-top:12px}.step-full{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:28px 30px;margin-bottom:18px;scroll-margin-top:105px}.step-full h2{font-size:23px}.step-full .step-top{margin-bottom:20px;gap:15px;justify-content:start}.step-full .step-top .duration{margin-left:auto}.step-full>p{font-size:14px;color:var(--muted)}.step-full ol{padding-left:22px;margin:18px 0;font-size:14px}.step-full li{padding:5px 0 5px 4px}.source-link{font-size:11px;color:var(--muted);text-decoration:underline;text-underline-offset:3px}.step-check{padding:16px;background:var(--soft);border-radius:7px;font-size:13px;margin:20px 0 14px;display:flex;gap:12px;align-items:start}.step-check input{accent-color:var(--accent);height:17px;width:17px;margin:3px 0 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var(--line);border-radius:var(--radius);background:var(--paper);overflow:hidden;display:flex;flex-direction:column}.exercise-detail-header{padding:26px 27px 19px}.exercise-detail-header .meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.exercise-detail h2{font-size:23px;margin-bottom:13px}.exercise-detail-header p{font-size:13px;color:var(--muted);margin:0}.exercise-detail-body{padding:0 27px 27px;display:flex;flex:1;flex-direction:column}.exercise-detail h3{font-size:13px;letter-spacing:0;margin:18px 0 9px}.exercise-detail ol,.exercise-detail ul{padding-left:19px;font-size:12px;color:var(--muted);line-height:1.9;margin:0}.prompt-box{background:var(--bg);border:1px solid var(--line);border-radius:8px;margin:18px 0;overflow:hidden}.prompt-bar{padding:9px 13px;border-bottom:1px solid 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p{font-size:13px;color:var(--muted);line-height:1.8}.resource-card .resource-note{font-size:11px;margin-top:auto;padding-top:10px;color:var(--muted)}.resource-card .text-link{margin-top:13px}.official-tag{color:var(--accent);background:var(--soft);padding:3px 8px;border-radius:3px}.community-tag{color:var(--muted);background:var(--bg);padding:3px 8px;border-radius:3px}.empty-state{display:none;padding:40px;background:var(--paper);border:1px dashed var(--line);text-align:center;grid-column:1/-1}.empty-state.visible{display:block}.notes-panel{padding:26px 30px;background:var(--soft);border-radius:var(--radius);margin-bottom:60px}.notes-panel h2{font-size:19px;margin-bottom:14px}.notes-panel ul{padding-left:20px;font-size:12px;color:var(--muted);margin:0;line-height:1.9}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line);padding:0 4px}.faq-list summary{font-weight:600;list-style:none;padding:23px 35px 23px 0;cursor:pointer;position:relative;font-size:16px}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:10px;top:20px;font-size:24px;font-weight:300;color:var(--accent)}.faq-list details[open] summary:after{content:"−"}.faq-answer{font-size:14px;color:var(--muted);padding:0 30px 25px 0;line-height:1.95}.faq-answer p{white-space:pre-line}.glossary{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:35px}.glossary-item{background:var(--soft);padding:20px;border-radius:8px}.glossary-item h3{font-size:15px;margin-bottom:8px}.glossary-item p{font-size:12px;color:var(--muted);margin:0}.community-hero{display:grid;grid-template-columns:1.25fr 1fr;gap:50px;align-items:center;padding:15px 0 50px}.welcome-note{font-size:17px;line-height:2.1}.welcome-note p{margin-bottom:20px}.signature{font-family:var(--serif);color:var(--accent);font-size:22px}.event-card{background:var(--dark);color:#fff;border-radius:var(--radius);padding:34px;position:relative}.event-card .kicker{color:#ffffff80}.event-card h2{font-size:39px;margin:15px 0 20px;font-weight:500}.event-card .event-tag{font-size:10px;border:1px solid #ffffff50;padding:4px 9px;border-radius:20px}.event-card p{font-size:13px;color:#ffffffb3;line-height:1.9}.event-city{font-family:var(--serif);font-size:63px;line-height:1;margin:28px 0 19px}.event-line{height:1px;background:#ffffff25;margin-bottom:19px}.community-how{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-bottom:55px}.community-how h3{font-size:19px;margin:12px 0}.community-how p{font-size:13px;color:var(--muted)}.community-how .number{font-family:var(--serif);color:var(--accent);font-size:36px}.qa-template{display:grid;grid-template-columns:.7fr 1.3fr;gap:45px;padding-bottom:55px;align-items:center}.qa-template h2{font-size:28px;margin-bottom:15px}.qa-template p{font-size:14px;color:var(--muted)}.qa-template .prompt-box{margin:0}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);background:var(--dark);color:#fff;padding:11px 21px;border-radius:7px;font-size:12px;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s;z-index:90;max-width:calc(100% - 35px);text-align:center}.toast.show{transform:translate(-50%,0);opacity:1}.view-guide{font-size:11px;color:var(--muted);margin-bottom:18px}.mobile-home-label{display:none}.content-end{padding-bottom:60px}.all-exercises .exercise-card{min-height:270px}noscript .notice{padding:15px;background:var(--soft)}[hidden]{display:none!important}
@media(min-width:1400px){.hero{gap:85px;padding-top:85px;padding-bottom:72px}.hero-art{min-height:400px}}
@media(max-width:1050px){.wrap{width:calc(100% - 48px)}.header-inner{gap:18px}.nav{gap:18px}.header-entry{display:none}.hero{gap:35px}.hero h1{font-size:43px}.hero-art{min-height:365px}.art-chatgpt,.art-workbuddy,.art-qianwen{padding:25px}.hero-description{font-size:14px}.step-preview{padding:22px 17px}.step-preview h3{font-size:15px}.page-layout{grid-template-columns:1fr 245px;gap:23px}.community-band{padding:30px}.hero-note{gap:10px}.intro-cell{gap:10px}}
@media(max-width:800px){.site-header{height:auto}.header-inner{height:auto;min-height:78px;flex-wrap:wrap;gap:0}.brand{margin:18px 0}.nav{width:100%;gap:25px;overflow:auto;margin:0;order:3;padding:0 0 10px;scrollbar-width:none}.nav::-webkit-scrollbar{display:none}.nav a{font-size:12px;padding:6px 0}.hero{grid-template-columns:1fr;gap:35px;padding:43px 0}.hero h1{font-size:48px;letter-spacing:-2px}.hero-description{font-size:15px;max-width:550px}.hero-art{width:100%;max-width:600px;min-height:365px;align-self:center}.art-chatgpt{padding:28px 36px}.chat-bubble{max-width:80%;margin-top:22px}.build-sheet{margin:0 25px;max-width:440px}.art-workbuddy{padding:23px 40px}.task-window{max-width:470px;margin-top:15px}.time-sticker{right:32px}.art-qianwen{padding:25px 40px}.paper-sheet{max-width:440px}.intro-strip{gap:15px}.intro-cell{display:block;padding:0 12px 0 0}.intro-cell+.intro-cell{padding-left:15px}.intro-cell>.number{font-size:20px;margin-bottom:6px}.intro-cell h3{font-size:14px}.intro-cell p{font-size:11px}.section{padding:46px 0}.step-preview-grid{grid-template-columns:1fr 1fr}.step-preview:nth-child(3){border-left:0}.step-preview:nth-child(n+3){border-top:1px solid var(--line)}.step-preview{min-height:210px;padding:23px}.practice-grid{grid-template-columns:1fr 1fr}.practice-grid .exercise-card:last-child{grid-column:1/-1;min-height:220px}.page-layout{grid-template-columns:1fr}.aside{position:static;grid-row:1}.aside .button{width:auto;margin-right:5px}.aside .progress-meta{display:inline}.page-heading h1{font-size:36px}.exercise-list{grid-template-columns:1fr}.community-hero{gap:30px}.welcome-note{font-size:15px}.event-card{padding:26px}.event-card h2{font-size:29px}.community-how{gap:20px}.qa-template{grid-template-columns:1fr;gap:10px}.footer-row{flex-direction:column;gap:15px}}
@media(max-width:540px){.wrap{width:calc(100% - 36px)}.brand-mark{height:33px;width:33px;border-radius:8px}.brand-text strong{font-size:15px}.brand-text small{font-size:9px}.brand{margin:15px 0}.nav{gap:24px}.hero{padding-top:34px;gap:28px}.hero h1{font-size:36px;letter-spacing:-1.6px;line-height:1.42}.eyebrow{font-size:11px;margin-bottom:18px}.hero-description{font-size:14px;margin:18px 0 22px}.button{font-size:12px;padding:11px 16px;gap:7px}.hero-note{font-size:10px;margin-top:19px;gap:12px}.hero-art{min-height:350px}.art-chatgpt,.art-workbuddy,.art-qianwen{padding:23px}.chat-bubble{font-size:12px;max-width:95%;padding:14px;margin-top:25px}.build-sheet{margin:0 3px;padding:20px}.build-sheet h3{font-size:19px}.sheet-line{font-size:10px}.art-top{font-size:9px}.art-caption{font-size:9px;bottom:12px}.task-window{margin-top:27px}.window-content{padding:18px}.window-content h3{font-size:19px}.time-sticker{bottom:26px;right:14px;font-size:11px}.paper-sheet{padding:23px;min-height:258px}.paper-sheet h3{font-size:22px}.seal{right:20px;bottom:42px;height:57px;width:57px;font-size:12px}.intro-strip{grid-template-columns:1fr;gap:0;padding:6px 0}.intro-cell{display:flex;padding:16px 0;gap:18px}.intro-cell+.intro-cell{border-left:0;border-top:1px solid var(--line);padding:16px 0}.intro-cell>.number{font-size:21px;margin:0;width:26px;flex:none}.intro-cell h3{font-size:15px;margin-bottom:3px}.intro-cell p{font-size:12px}.section-head{align-items:flex-start;gap:10px}.section-head h2{font-size:26px}.section-head p{font-size:12px;line-height:1.8}.section-head>.text-link{font-size:11px;margin-top:25px}.kicker{font-size:9px;margin-bottom:8px}.step-preview{padding:19px 16px;min-height:225px}.step-preview p{font-size:11px}.step-preview h3{font-size:16px}.step-top{margin-bottom:15px}.step-num{font-size:27px}.duration{font-size:10px}.practice-grid{grid-template-columns:1fr}.practice-grid .exercise-card:last-child{grid-column:auto}.exercise-card{padding:24px;min-height:245px}.exercise-card .top{margin-bottom:18px}.resource-preview-grid{grid-template-columns:1fr}.resource-preview{gap:13px}.community-band{flex-direction:column;align-items:flex-start;padding:27px;margin-bottom:45px;gap:22px}.community-band h2{font-size:23px}.community-band p{font-size:12px}.footer-links{gap:15px}.footer-meta{font-size:9px}.page-heading{padding-top:32px;padding-bottom:25px}.page-heading h1{font-size:30px;line-height:1.5}.page-heading>p{font-size:13px}.breadcrumbs{font-size:10px;margin-bottom:16px}.step-full{padding:23px 20px}.step-full h2{font-size:20px}.step-full .step-top{flex-wrap:wrap;gap:11px}.step-full .step-top .duration{margin-left:auto}.step-full>p,.step-full ol{font-size:13px}.step-check{font-size:12px;padding:13px}.download-strip{padding:20px;flex-wrap:wrap;gap:12px}.download-strip>.icon{display:none}.download-strip .button{margin:0}.download-strip h2{font-size:16px}.exercise-detail-header{padding:23px 21px 17px}.exercise-detail-body{padding:0 21px 23px}.exercise-detail h2{font-size:21px}.resource-grid{grid-template-columns:1fr}.filters{gap:8px}.search-wrap{flex-basis:100%;margin-bottom:5px}.filter-chip{padding:8px 14px;font-size:11px}.resource-card{padding:23px}.resource-card h2{font-size:19px}.notes-panel{padding:23px;margin-bottom:40px}.faq-list summary{font-size:14px;padding-top:20px;padding-bottom:20px}.faq-answer{font-size:13px}.glossary{grid-template-columns:1fr;gap:12px}.community-hero{grid-template-columns:1fr;gap:20px;padding-bottom:35px}.welcome-note{font-size:15px}.event-card{padding:28px}.event-card h2{font-size:32px}.community-how{grid-template-columns:1fr;gap:9px;margin-bottom:30px}.community-how>div{border-bottom:1px solid var(--line);padding-bottom:16px}.community-how .number{font-size:28px}.community-how h3{font-size:18px;margin:8px 0}.qa-template h2{font-size:24px}.qa-template p{font-size:13px}.page-layout{padding-bottom:35px}.source-link{overflow-wrap:anywhere}.prompt-box pre{font-size:12px}.header-entry{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
@media print{.site-header,.site-footer,.actions,.copy-button,.filters,.toast,.aside,.hero-art{display:none}.wrap{width:100%}.hero,.page-layout,.exercise-list,.resource-grid{display:block}.exercise-detail,.step-full{break-inside:avoid;margin-bottom:18px}.prompt-box pre{max-height:none}body{font-size:12pt;background:#fff}.section{padding:20px 0}}

/* Final small-screen refinements */
h1{text-wrap:balance}.progress-fill{width:0}.reset-progress{display:block}.aside .button{display:flex}
@media(max-width:800px){.aside .button{width:100%;margin-right:0}.aside .text-link{display:flex}.reset-progress{margin-bottom:17px}}
@media(max-width:540px){.nav{gap:12px;justify-content:space-between}.nav a{font-size:11px}.page-heading h1{font-size:29px}.hero h1{text-wrap:initial}}
