.ChineseLearnerArticle_body__IEMZU{min-width:0}.ChineseLearnerArticle_body__IEMZU :is(button,summary):focus-visible{outline:3px solid var(--site-accent);outline-offset:5px}.ChineseLearnerArticle_body__IEMZU .ChineseLearnerArticle_sources__ESfVd h2{font-size:22px}.ChineseLearnerArticle_prompt__0oELQ{margin:32px 0;border-left:3px solid var(--site-accent);padding:6px 0 6px 24px;font-size:23px;line-height:1.5}.ChineseLearnerArticle_prompt__0oELQ p{margin:0}.ChineseLearnerArticle_exercise__Bk6DK{margin:32px 0;padding:28px;border:1px solid var(--site-border);border-radius:16px;background:var(--site-subtle)}.ChineseLearnerArticle_students__rfews{display:grid;grid-template-columns:1fr 1fr;gap:28px;padding-bottom:28px;margin-bottom:28px;border-bottom:1px solid var(--site-border)}.ChineseLearnerArticle_students__rfews h3{margin:0 0 10px;font-size:21px;font-weight:600}.ChineseLearnerArticle_students__rfews p{margin:0;font-size:17px;line-height:1.7}.ChineseLearnerArticle_choices__C8CNx{min-width:0;border:0;margin:0;padding:0}.ChineseLearnerArticle_choices__C8CNx legend{padding:0;font-size:21px;line-height:1.4;font-weight:600}.ChineseLearnerArticle_body__IEMZU .ChineseLearnerArticle_hint__DrUgW{margin:10px 0 18px;color:var(--site-muted);font-size:15px;line-height:1.6}.ChineseLearnerArticle_buttons__rqBcj{display:flex;flex-wrap:wrap;gap:10px}.ChineseLearnerArticle_buttons__rqBcj button{min-height:44px;padding:10px 15px;border:1px solid var(--site-border);border-radius:8px;background:var(--site-surface);color:var(--site-text);font:inherit;font-size:15px;line-height:1.4;text-align:left;cursor:pointer}.ChineseLearnerArticle_buttons__rqBcj button:hover{border-color:var(--site-accent)}.ChineseLearnerArticle_buttons__rqBcj button[aria-pressed=true]{border-color:var(--site-accent);background:var(--site-accent-tint);color:var(--site-accent-deep)}.ChineseLearnerArticle_body__IEMZU .ChineseLearnerArticle_response__xONKT{margin:24px 0 0;padding-left:18px;border-left:2px solid var(--site-accent);font-size:17px}.ChineseLearnerArticle_body__IEMZU .ChineseLearnerArticle_caption__h_u5D{margin:22px 0 0;font-size:13px;line-height:1.6;color:var(--site-muted)}.ChineseLearnerArticle_approach__T1DmZ{margin-top:28px;font-size:17px}.ChineseLearnerArticle_steps__TCDTY{padding:0;margin:0 0 24px;display:flex;flex-wrap:wrap;list-style:none;gap:10px;color:var(--site-accent-deep);font-weight:600;font-size:15px}.ChineseLearnerArticle_steps__TCDTY li:not(:last-child):after{content:" →";margin-left:10px}.ChineseLearnerArticle_body__IEMZU .ChineseLearnerArticle_example__GPPcr{margin-bottom:0;color:var(--site-muted)}.ChineseLearnerArticle_disclosure__0AJxq{padding:20px 0;border-block:1px solid var(--site-border);margin:28px 0}.ChineseLearnerArticle_disclosure__0AJxq summary{font-weight:600;cursor:pointer;line-height:1.5}.ChineseLearnerArticle_disclosure__0AJxq[open] summary{margin-bottom:18px}.ChineseLearnerArticle_disclosure__0AJxq p:last-child{margin-bottom:0}.ChineseLearnerArticle_sources__ESfVd{font-size:15px;line-height:1.7;color:var(--site-muted);border-top:1px solid var(--site-border);padding-top:28px}.ChineseLearnerArticle_takeaways__LDMyQ{margin:28px 0;padding-left:24px}.ChineseLearnerArticle_takeaways__LDMyQ>li{padding-left:8px;margin-bottom:28px}.ChineseLearnerArticle_takeaways__LDMyQ>li::marker{color:var(--site-accent-deep);font-weight:600}.ChineseLearnerArticle_takeaways__LDMyQ h3{margin-bottom:10px;font-size:21px;font-weight:600;line-height:1.4}.ChineseLearnerArticle_body__IEMZU .ChineseLearnerArticle_takeaways__LDMyQ p+p{margin-top:10px}@media (max-width:650px){.ChineseLearnerArticle_exercise__Bk6DK{padding:20px}.ChineseLearnerArticle_students__rfews{grid-template-columns:1fr;gap:24px}.ChineseLearnerArticle_prompt__0oELQ{font-size:21px;padding-left:18px}}@media print{.ChineseLearnerArticle_caption__h_u5D,.ChineseLearnerArticle_choices__C8CNx{display:none}.ChineseLearnerArticle_exercise__Bk6DK{break-inside:avoid}}.m_1b3c8819{--tooltip-radius:var(--mantine-radius-default);position:absolute;padding:calc(var(--mantine-spacing-xs) / 2) var(--mantine-spacing-xs);pointer-events:none;font-size:var(--mantine-font-size-sm);white-space:nowrap;border-radius:var(--tooltip-radius)}:where([data-mantine-color-scheme=light]) .m_1b3c8819{background-color:var(--tooltip-bg,var(--mantine-color-gray-9));color:var(--tooltip-color,var(--mantine-color-white))}:where([data-mantine-color-scheme=dark]) .m_1b3c8819{background-color:var(--tooltip-bg,var(--mantine-color-gray-2));color:var(--tooltip-color,var(--mantine-color-black))}.m_1b3c8819:where([data-multiline]){white-space:normal}.m_f898399f{background-color:inherit;border:0;z-index:1}.LearningIllustrations_figure__OqjKE{margin:40px 0;padding:32px 0 24px;text-align:center;break-inside:avoid}.LearningIllustrations_pair__u2HFZ{display:grid;grid-template-columns:1fr 24px 1fr;align-items:center;gap:12px}.LearningIllustrations_idea___MP6L{display:flex;min-width:0;flex-direction:column;align-items:center}.LearningIllustrations_label__5qtff{font-size:16px;font-weight:600;line-height:1.4}.LearningIllustrations_flashcard__rOvHl{display:flex;align-items:center;justify-content:center;width:min(100%,240px);height:116px;margin:22px 0 16px;border:1px solid var(--site-border);border-radius:10px;background:var(--site-surface);color:var(--site-accent-deep);font-size:clamp(24px,4vw,34px);font-weight:600;transform:rotate(-3deg);box-shadow:4px 5px 0 var(--site-subtle)}.LearningIllustrations_plus__9Wq0f{color:var(--site-muted);font-size:28px}.LearningIllustrations_groups__aNmFM{display:flex;align-items:center;justify-content:center;gap:8px;height:116px;margin:22px 0 16px}.LearningIllustrations_group__r8ZfH{display:grid;grid-template-columns:repeat(2,12px);gap:8px;padding:12px;background:var(--site-accent-tint);border-radius:12px}.LearningIllustrations_dot__NUhuJ{width:12px;height:12px;border-radius:50%;background:var(--site-accent)}.LearningIllustrations_note__nNeOX{display:block;color:var(--site-muted);font-size:14px;line-height:1.5}.LearningIllustrations_figure__OqjKE figcaption{max-width:520px;margin:24px auto 0;font-size:15px;line-height:1.6;color:var(--site-muted)}.LearningIllustrations_figure__OqjKE figcaption span{display:block;margin-top:6px;font-size:12px}.LearningIllustrations_problem__G5o71{margin-bottom:8px;font-size:26px;line-height:1.4;font-weight:550}.LearningIllustrations_area__ntm9r{display:block;width:100%;max-width:480px;height:auto;margin:16px auto 0;overflow:visible}.LearningIllustrations_dimension__a_ide{fill:var(--site-muted);font-size:20px}.LearningIllustrations_tenArea__Ah_QN{fill:var(--site-subtle);stroke:var(--site-border)}.LearningIllustrations_fourArea__CLRha{fill:var(--site-accent-tint);stroke:var(--site-accent)}.LearningIllustrations_divider__8F8Ff{stroke:var(--site-accent);stroke-width:1.5}.LearningIllustrations_calculation__lZEy0{fill:var(--site-text);font-size:20px}.LearningIllustrations_total__oeQ_k{fill:var(--site-text);font-size:27px;font-weight:600}.LearningIllustrations_result__oGbDl{font-size:25px;line-height:1.4;color:var(--site-text)}.LearningIllustrations_result__oGbDl strong{color:var(--site-accent-deep)}.LearningIllustrations_summary__YItxS{max-width:520px;margin:14px auto 0;text-align:left;color:var(--site-muted);font-size:14px;line-height:1.65}.LearningIllustrations_summary__YItxS summary{width:fit-content;margin:0 auto;cursor:pointer;color:var(--site-accent-deep)}.LearningIllustrations_summary__YItxS summary:focus-visible{outline:2px solid var(--site-accent);outline-offset:4px}.LearningIllustrations_summary__YItxS p{padding-top:12px}@media (max-width:520px){.LearningIllustrations_figure__OqjKE{padding-top:20px;margin:32px 0}.LearningIllustrations_pair__u2HFZ{grid-template-columns:1fr;gap:12px}.LearningIllustrations_plus__9Wq0f{line-height:1}.LearningIllustrations_flashcard__rOvHl,.LearningIllustrations_groups__aNmFM{height:92px;margin:16px 0 10px}.LearningIllustrations_flashcard__rOvHl{max-width:210px;font-size:30px}.LearningIllustrations_figure__OqjKE figcaption{font-size:14px}}.LearningIllustrations_figure__OqjKE.LearningIllustrations_practice__1CkqR{margin:24px 0 32px;padding:24px 0}.LearningIllustrations_areaSteps__8hrZs{display:grid;grid-template-columns:minmax(0,1fr) 24px minmax(0,1fr);align-items:center;gap:12px}.LearningIllustrations_squareGrid__iefMM{display:block;width:100%;max-width:280px;height:160px}.LearningIllustrations_stepArrow__r8Bjt{font-size:28px;color:var(--site-muted)}.LearningIllustrations_areaRule__YH3xB{display:flex;flex-direction:column;justify-content:center;gap:14px;width:100%;min-height:128px;margin:16px 0;padding:16px 12px;border:1px solid var(--site-border);border-radius:10px;background:var(--site-surface);color:var(--site-accent-deep);font-size:17px;line-height:1.5}.LearningIllustrations_areaRule__YH3xB strong{font-size:28px;font-weight:600}@media (max-width:520px){.LearningIllustrations_areaSteps__8hrZs{grid-template-columns:1fr;gap:18px}.LearningIllustrations_stepArrow__r8Bjt{transform:rotate(90deg);line-height:1}.LearningIllustrations_areaRule__YH3xB{max-width:280px}}.Footer_footer__zGoMg{position:relative;isolation:isolate;overflow:hidden;padding:48px 24px 0;background:linear-gradient(180deg,var(--site-bg),#f0f1e9);color:var(--site-text)}.Footer_inner__Rmrlr{position:relative;z-index:1;max-width:1180px;margin:auto;padding:48px 42px 96px;border:1px solid var(--site-border);border-bottom:0;border-radius:28px 28px 0 0;background:var(--site-surface)}.Footer_wordmark__550Sv{margin:44px -10px 0;text-align:center;white-space:nowrap;font-size:clamp(48px,10vw,142px);font-weight:650;line-height:1;letter-spacing:-.065em;color:var(--site-text);opacity:.07;user-select:none}.Footer_landscape__hddRA{position:absolute;z-index:2;bottom:0;left:0;right:0;height:190px;pointer-events:none;background-position:bottom;background-size:cover;background-repeat:no-repeat;mask-image:linear-gradient(transparent,#000 52%)}.Footer_footer__zGoMg[data-ready=true] .Footer_landscape__hddRA{background-image:url(/images/hero/campus-garden-day.webp);background-image:image-set(url("/images/hero/campus-garden-day.avif") type("image/avif"),url("/images/hero/campus-garden-day.webp") type("image/webp"))}.landing-page .Footer_inner__Rmrlr{padding-bottom:160px}.landing-page .Footer_wordmark__550Sv{font-size:clamp(48px,12vw,168px);margin-top:60px}.landing-page .Footer_landscape__hddRA{height:290px}[data-mantine-color-scheme=dark] .Footer_footer__zGoMg{background:linear-gradient(180deg,var(--site-bg),#162321)}[data-mantine-color-scheme=dark] .Footer_footer__zGoMg[data-ready=true] .Footer_landscape__hddRA{background-image:url(/images/hero/campus-garden-dusk.webp);background-image:image-set(url("/images/hero/campus-garden-dusk.avif") type("image/avif"),url("/images/hero/campus-garden-dusk.webp") type("image/webp"))}[data-mantine-color-scheme=dark] .Footer_wordmark__550Sv{opacity:.09}.Footer_directory__9bckD{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,3fr);gap:60px;padding-bottom:42px}.Footer_brand__IWxkW{display:inline-flex;align-items:center;gap:10px;text-decoration:none;color:var(--site-text);font-size:17px;font-weight:650;letter-spacing:-.02em}.Footer_brand__IWxkW img{width:30px;height:auto;flex-shrink:0}.Footer_brandBlock__eirdE p{max-width:245px;margin:20px 0 22px;color:var(--site-muted);font-size:13px;line-height:1.8}.Footer_workspace__LLdOT{display:inline-flex;align-items:center;gap:18px;min-height:40px;padding:9px 13px;border:1px solid var(--site-border);border-radius:8px;background:var(--site-surface);color:var(--site-accent-deep);font-size:12px;font-weight:550;text-decoration:none;transition:border-color .18s ease,background-color .18s ease}.Footer_workspace__LLdOT:hover{border-color:var(--site-accent);background:var(--site-accent-tint)}.Footer_workspace__LLdOT svg{transition:transform .18s ease}.Footer_workspace__LLdOT:hover svg{transform:translate(2px,-2px)}.Footer_navigation__htz2c{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding-top:5px}.Footer_group__2iEt5 h2{font-size:13px;font-weight:650;margin:0 0 17px;line-height:1.6}.Footer_group__2iEt5 ul{list-style:none;padding:0;margin:0;display:grid;gap:3px}.Footer_group__2iEt5 a{display:inline-block;padding:5px 0;color:var(--site-muted);font-size:13px;line-height:1.6;text-decoration:none;transition:color .16s ease}.Footer_group__2iEt5 a:hover{color:var(--site-accent);text-decoration:underline;text-underline-offset:4px}.Footer_community__2cG8e{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:18px 28px;padding:20px 0;border-top:1px solid var(--site-border);border-bottom:1px solid var(--site-border)}.Footer_elsewhere__172D_,.Footer_openSource__t9Lqs{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.Footer_label__DzR1a{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--site-muted)}.Footer_community__2cG8e a{display:inline-flex;align-items:center;gap:5px;color:var(--site-text);font-size:11px;text-decoration:none;min-height:32px;transition:color .16s ease}.Footer_community__2cG8e a:hover{color:var(--site-accent)}.Footer_elsewhere__172D_ a{border:1px solid var(--site-border);padding:5px 10px;border-radius:7px;background:var(--site-surface)}.Footer_elsewhere__172D_ .Footer_social__AbL_6{width:32px;padding:0;justify-content:center}.Footer_bottom__gBXfh{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:22px;color:var(--site-muted);font-size:11px}.Footer_bottom__gBXfh p{margin:0}.Footer_bottom__gBXfh nav{display:flex;gap:24px;flex-wrap:wrap}.Footer_bottom__gBXfh a{color:var(--site-muted);text-decoration:none;padding:6px 0}.Footer_bottom__gBXfh a:hover{color:var(--site-accent);text-decoration:underline;text-underline-offset:4px}.Footer_footer__zGoMg a:focus-visible{outline:2px solid var(--site-accent);outline-offset:4px;border-radius:4px}.Footer_srOnly__57nOK{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}@media (max-width:1000px){.Footer_directory__9bckD{grid-template-columns:1fr;gap:36px}.Footer_brandBlock__eirdE{display:grid;grid-template-columns:1fr auto;align-items:center;gap:14px 28px}.Footer_brandBlock__eirdE p{grid-column:1;max-width:340px;margin:0}.Footer_workspace__LLdOT{grid-column:2;grid-row:1/span 2}}@media (max-width:600px){.Footer_footer__zGoMg{padding:28px 12px 0}.Footer_inner__Rmrlr{padding:30px 20px 80px;border-radius:20px 20px 0 0}.Footer_wordmark__550Sv{font-size:clamp(34px,10.6vw,64px);margin:36px -8px 0}.Footer_landscape__hddRA{height:125px}.landing-page .Footer_inner__Rmrlr{padding-bottom:116px}.landing-page .Footer_wordmark__550Sv{font-size:clamp(34px,10.6vw,64px);margin-top:40px}.landing-page .Footer_landscape__hddRA{height:165px}.Footer_directory__9bckD{gap:32px;padding-bottom:28px}.Footer_brandBlock__eirdE{display:block}.Footer_brandBlock__eirdE p{margin:16px 0 20px;max-width:280px}.Footer_navigation__htz2c{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 20px}.Footer_group__2iEt5 h2{margin-bottom:12px}.Footer_group__2iEt5 a{padding:7px 0}.Footer_community__2cG8e{align-items:flex-start;gap:20px;padding:22px 0}.Footer_elsewhere__172D_,.Footer_openSource__t9Lqs{gap:10px}.Footer_elsewhere__172D_ .Footer_label__DzR1a,.Footer_openSource__t9Lqs .Footer_label__DzR1a{width:100%}.Footer_bottom__gBXfh{flex-direction:column;align-items:flex-start;gap:10px;padding-top:20px}}@media (prefers-reduced-motion:reduce){.Footer_footer__zGoMg a,.Footer_workspace__LLdOT svg{transition:none}.Footer_workspace__LLdOT:hover svg{transform:none}}.Footer_localeNote___njGC{font-size:11px;line-height:1.7;color:var(--site-muted);max-width:700px;margin:14px 0 0}