:root{--ink:#202c2a;--muted:#56645f;--green:#146653;--line:#dce5e0;--tint:#eff6f2;--rose:#a94b59}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0;color:var(--ink);background:white;font-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.7;letter-spacing:0}a{color:var(--green);text-underline-offset:4px}a:hover{color:#0c493b}a:focus-visible{outline:3px solid #ad4c5d;outline-offset:5px}.wrap{width:min(1120px,calc(100% - 48px));margin-inline:auto}.skip{position:absolute;top:-100px;left:16px;padding:12px;background:white;z-index:10}.skip:focus{top:8px}header{border-bottom:1px solid var(--line)}.header-inner,.brand,nav,.intro-actions,.section-heading,.product-top,.download-note,.footer-inner{display:flex;align-items:center;gap:24px}.header-inner{justify-content:space-between;min-height:92px}.brand{gap:12px;text-decoration:none;color:var(--ink);font-size:22px;font-weight:750}.brand img{object-fit:contain;flex-shrink:0}.brand small{display:block;font-size:12px;font-weight:400;color:var(--muted)}nav a{text-decoration:none;font-size:14px}.login-link{border-left:1px solid var(--line);padding-left:24px}.intro{padding-block:48px 32px}.eyebrow{font-size:13px;font-weight:650;color:var(--green);margin:0 0 12px}h1,h2,h3,p{overflow-wrap:anywhere}h1{font-size:40px;line-height:1.3;margin:0 0 18px}h2{font-size:26px;line-height:1.4;margin:0}h3{font-size:20px;line-height:1.45;margin:0}.lead{font-size:18px;color:var(--muted);margin:0 0 24px}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:11px 22px;border-radius:6px;text-decoration:none;font-size:15px;font-weight:650;border:1px solid transparent;text-align:center}.primary{background:var(--green);color:white}.primary:hover{background:#0c493b;color:white}.secondary{color:var(--ink);border-color:#b5c9c0;background:white}.secondary:hover{background:var(--tint)}.text-link{font-size:14px;text-decoration:none}.example{margin-top:30px;padding:16px 0;border-block:1px solid var(--line);display:flex;align-items:center;gap:32px}.example>span:nth-child(2){display:flex;align-items:center;gap:24px;font-size:23px}.example-label,.example small{font-size:13px;color:var(--muted)}.example code{font-size:18px;color:var(--rose)}.example i{font-size:16px;color:#7c8d85}.example small{margin-left:auto}.downloads{padding-block:0 40px}.section-heading{justify-content:space-between;align-items:flex-end;margin-bottom:22px}.section-heading .eyebrow{margin-bottom:5px}.platform{font-size:12px;color:var(--muted)}.products{display:grid;grid-template-columns:1fr 1fr;gap:24px}.product{border:1px solid var(--line);border-radius:8px;padding:28px;display:flex;flex-direction:column}.japanese{border-top:3px solid var(--green)}.chinese{border-top:3px solid var(--rose)}.product-top{gap:12px;font-size:13px;color:var(--muted);margin-bottom:18px}.product-icon{font-size:28px;color:var(--green)}.chinese .product-icon{color:var(--rose)}.badge{font-size:11px;padding:2px 8px;border:1px solid var(--line);border-radius:4px;margin-left:auto;white-space:nowrap}.product h3{font-size:25px}.description{color:var(--muted);font-size:15px;margin:14px 0 18px}.features{list-style:none;padding:0;margin:0 0 22px;display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13px}.features i{margin-right:6px;color:var(--green)}.download-bottom{margin-top:auto;border-top:1px solid var(--line);padding-top:16px}.version{font-size:12px;color:var(--muted);margin:0 0 12px}.download-bottom .button{width:100%}.download-note{justify-content:space-between;gap:16px;font-size:12px;color:var(--muted);margin-top:16px}.download-note p{margin:0}.download-note a{flex-shrink:0}.learning{background:var(--tint);border-block:1px solid var(--line)}.learning-inner{display:grid;grid-template-columns:1fr 1fr;gap:64px;padding-block:44px}.learning h2{font-size:30px}.learning p:not(.eyebrow){color:var(--muted);font-size:15px}.learning-steps{list-style:none;padding:0;margin:0;display:grid;gap:22px;align-content:center}.learning-steps li{display:flex;gap:20px}.learning-steps li>span{color:var(--rose);font-size:14px;border-top:1px solid #bd7f88;padding-top:6px;min-width:26px}.learning-steps h3{font-size:17px}.learning-steps p{margin:4px 0 0}.help{padding-block:44px}.help h2{font-size:22px}.help-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:22px}.help h3{font-size:15px}.help p{font-size:13px;color:var(--muted);margin:8px 0 0}footer{border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.footer-inner{justify-content:space-between;padding-block:24px}footer nav a{font-size:12px}
@media(max-width:760px){.wrap{width:calc(100% - 32px)}.header-inner{min-height:80px;gap:12px}.brand{font-size:19px;gap:8px}.brand small{font-size:10px}.header-inner nav{gap:12px}.header-inner nav>a:first-child{display:none}.login-link{padding-left:12px}.intro{padding-block:30px 24px}h1{font-size:29px}.lead{font-size:16px}.lead br,.learning p br{display:none}.intro-actions{align-items:stretch;flex-direction:column;gap:16px}.text-link{text-align:center}.example{flex-wrap:wrap;gap:10px;margin-top:24px}.example-label{width:100%}.example>span:nth-child(2){font-size:20px;gap:16px}.example small{margin-left:0;width:100%}.section-heading{display:block}.platform{display:block;margin-top:12px}h2{font-size:23px}.products{grid-template-columns:1fr;gap:18px}.product{padding:22px}.product h3{font-size:23px}.download-note{display:block}.download-note a{display:inline-block;margin-top:10px}.learning-inner{grid-template-columns:1fr;gap:32px;padding-block:32px}.learning h2{font-size:27px}.help-grid{grid-template-columns:1fr;gap:24px}.footer-inner{align-items:flex-start;flex-direction:column;gap:12px}footer nav{flex-wrap:wrap;gap:12px 20px}}
.pinyin-examples{margin-top:28px;padding-block:18px;border-block:1px solid var(--line)}.pinyin-examples>p{display:flex;flex-wrap:wrap;gap:8px 24px;margin:0 0 16px;font-size:13px}.pinyin-examples>p>span{color:var(--muted)}.pinyin-examples code{color:var(--rose)}.pinyin-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px 24px;padding:8px 0}.pinyin-source{display:flex;align-items:center;gap:10px;min-width:230px;font-size:18px}.pinyin-source>span,.pinyin-row>i,.pinyin-row small{color:var(--muted);font-size:13px}.pinyin-row>strong{font-size:20px}.pinyin-row small{font-size:13px}@media(max-width:760px){.pinyin-source{min-width:0;width:100%}.pinyin-row{gap:6px 12px}.pinyin-row+ .pinyin-row{margin-top:12px}.pinyin-row>strong{font-size:18px}}
.hero-download-note{font-size:12px;color:var(--muted);margin:12px 0 0}.products{grid-template-columns:minmax(0,1.35fr) minmax(0,1fr)}.product.chinese{border:2px solid var(--green);background:#f7fbf8}.product.chinese .product-icon{color:var(--green)}.product.japanese{border-top:1px solid var(--line)}.product.japanese h3{font-size:21px}@media(max-width:760px){.products{grid-template-columns:1fr}.hero-download-note{line-height:1.8}}
.header-inner>nav:first-of-type{margin-left:auto}.language-switch{gap:12px;flex-shrink:0}.language-switch a{font-size:13px;color:var(--muted)}.language-switch [aria-current]{color:var(--green);font-weight:700;text-decoration:underline;text-underline-offset:6px}.product-top>span:not(.badge){min-width:0}.product-top{flex-wrap:wrap}.download-note{flex-wrap:wrap}.pinyin-row strong{min-width:0}html[lang=en] .product h3{font-size:23px}html[lang=en] .product.japanese h3{font-size:20px}@media(max-width:760px){.header-inner{flex-wrap:wrap;padding-block:12px;gap:12px}.header-inner>nav:first-of-type{margin-left:auto}.header-inner .language-switch{width:100%;justify-content:flex-end;border-top:1px solid var(--line);padding-top:8px}.header-inner .language-switch>a:first-child{display:inline}.header-inner nav>a{font-size:12px}.brand small{font-size:10px}.pinyin-examples>p{display:block}.pinyin-examples>p>span{display:block;margin-top:8px}.download-bottom .button{padding-inline:12px}}
.brand img{width:160px;height:auto;display:block}.brand{display:block}.brand small{margin-top:4px}.brand>span{display:block}@media(max-width:760px){.brand img{width:132px}}
header{background:#fff;border:0;box-shadow:0 2px 10px #00000014}.header-inner{width:calc(100% - 60px);min-height:70px;gap:25px}.brand img{width:auto;height:60px;filter:drop-shadow(0 2px 4px #0000001a)}.brand>span{display:none}.header-inner nav a{color:#666;font-weight:500}.header-inner nav a:hover,.header-inner .login-link{color:#0069d9}.login-link{border:0;padding:0;font-weight:600!important}.language-switch{border-left:1px solid #ddd;padding-left:24px}.language-switch [aria-current]{color:#0069d9;background:#eaf2fc;text-decoration:none;padding:2px 6px;border-radius:2px}footer{background:#f5f6fa;border-top:0}.footer-inner{flex-direction:column;justify-content:center;text-align:center;gap:6px;padding-block:24px;color:#666}.footer-inner nav{justify-content:center;flex-wrap:wrap;gap:8px 18px}.footer-inner a{color:#0069d9;text-decoration:none;font-size:12px}.footer-inner a:hover{text-decoration:underline}@media(max-width:760px){.header-inner{width:calc(100% - 32px);min-height:64px;gap:10px;padding-block:8px}.brand img{height:40px;width:auto}.header-inner .language-switch{width:auto;border-top:0;border-left:1px solid #ddd;padding:0 0 0 10px;gap:8px}.header-inner nav>a:first-child{display:inline}.header-inner>nav:first-of-type>a:first-child{display:none}.header-inner .login-link{font-size:12px}.header-inner .language-switch a{font-size:12px}.footer-inner{align-items:center}}@media(max-width:360px){.header-inner .language-switch{width:100%;justify-content:flex-end;border:0}}
.header-inner .brand img{width:132px;height:44px;filter:none}@media(max-width:760px){.header-inner .brand img{width:112px;height:auto}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.romaji-hints{padding-block:12px 40px}.romaji-hints>p:not(.eyebrow){color:var(--muted);max-width:760px}.romaji-hints figure{margin:20px 0 0}.romaji-hints img{display:block;width:100%;height:auto}.romaji-hints figcaption{margin-top:12px;color:var(--muted);font-size:13px;overflow-wrap:anywhere}