.language-toggle{display:inline-flex;align-items:center;justify-content:center;gap:7px;color:#b9b8d3;background:#111521;border:1px solid #30324a;border-radius:999px;min-width:66px;height:35px;font-size:12px;flex-shrink:0;padding:0 12px;transition:border-color .2s,color .2s}.language-toggle:hover{color:#fff;border-color:#766299}.language-toggle svg{width:14px;height:14px}.header-actions{display:flex;align-items:center;gap:20px}.research-header>.language-toggle{margin-left:auto}.research-header .research-nav{margin-left:auto}.topbar-right>.language-toggle{margin-right:2px}.language-name{white-space:nowrap}html[lang=zh-CN] body{font-family:Inter,"SF Pro Display",-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}html[lang=zh-CN] .hero h1{font-size:clamp(62px,6.3vw,92px);line-height:1.18;letter-spacing:1px}html[lang=zh-CN] .hero-copy p{font-size:clamp(18px,1.65vw,25px);line-height:1.7;letter-spacing:.3px}html[lang=zh-CN] .eyebrow{letter-spacing:2px}html[lang=zh-CN] .section-heading{line-height:1.35;letter-spacing:.2px}html[lang=zh-CN] .research-card h3{line-height:1.5}html[lang=zh-CN] .notebook-hero h1,html[lang=zh-CN] .article-heading h1{letter-spacing:.4px;line-height:1.3}html[lang=zh-CN] .article-body p{line-height:2.05}html[lang=zh-CN] .closing-section h2{line-height:1.3;letter-spacing:1px}html[lang=zh-CN] .page-heading h1{line-height:1.4}html[lang=zh-CN] .hero-command select{min-width:112px}html[lang=zh-CN] .workspace-welcome h2{line-height:1.4}
@media(max-width:980px){.header-actions{gap:12px}.header-nav{margin-left:0}.research-header{gap:20px}.research-nav{gap:20px}}
@media(max-width:700px){.header-actions{gap:10px;margin-left:auto;margin-right:12px}.header-actions .header-launch{margin:0;min-width:0;padding-inline:13px}.language-toggle{min-width:42px;height:33px;padding:0 8px;font-size:11px}.language-toggle svg{display:none}.header-actions .header-launch svg{display:none}.research-header{gap:12px}.research-header>.language-toggle{margin-left:auto}.topbar-right>.language-toggle{height:29px;min-width:38px;padding:0 7px;font-size:10px}.topbar-right{gap:9px}.topbar-right .demo-badge{display:none}html[lang=zh-CN] .hero h1{font-size:clamp(45px,10.5vw,65px);line-height:1.2;letter-spacing:1px}html[lang=zh-CN] .hero-copy p{font-size:15px;line-height:1.8}html[lang=zh-CN] .hero-command select{min-width:39px}html[lang=zh-CN] .section-heading{font-size:29px}html[lang=zh-CN] .feature-card h2{font-size:15px}html[lang=zh-CN] .feature-card p{font-size:12px}html[lang=zh-CN] .notebook-hero h1{font-size:42px}html[lang=zh-CN] .article-heading h1{font-size:35px}html[lang=zh-CN] .closing-section h2{font-size:39px}html[lang=zh-CN] .community-banner h3{font-size:24px}}