/* Dedicated top-right language row; avoids covering original navigation at any viewport. */
.zyh-locale-bar{box-sizing:border-box;position:relative;z-index:10020;display:flex;justify-content:flex-end;align-items:center;gap:10px;min-height:38px;padding:6px clamp(16px,4vw,48px);background:#f4f7fa;border-bottom:1px solid #dce3eb;color:#19364b;font:500 13px/1.5 system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;letter-spacing:0;text-transform:none}
.zyh-locale-bar a{display:inline-flex;align-items:center;min-height:28px;padding:2px 9px;border-radius:4px;color:#19364b!important;text-decoration:none!important;font:inherit}
.zyh-locale-bar a:hover{background:#e3ebf2}
.zyh-locale-bar a:focus-visible{outline:3px solid #2472a8;outline-offset:2px}
.zyh-locale-bar a[aria-current=page]{background:#19364b;color:#fff!important}
.zyh-snapshot-note{position:relative;z-index:10019;margin:0!important;padding:10px 24px!important;background:#fff6df;color:#493800;font:13px/1.6 system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}
html[lang=zh-CN]{--head:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;--body:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}
html[lang=zh-CN] body,html[lang=zh-CN] button,html[lang=zh-CN] input,html[lang=zh-CN] textarea,html[lang=zh-CN] select{font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif}
html[lang=zh-CN] h1,html[lang=zh-CN] h2,html[lang=zh-CN] h3,html[lang=zh-CN] h4{font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;letter-spacing:0}
/* Codex Chinese hero: keep the six-character phrase together without changing EN or other variants. */
html[lang=zh-CN][data-design=zhiyuan-v1] .hero-copy h1{font-size:clamp(36px,4.5vw,64px);line-height:1.14;text-wrap:balance}
html[lang=zh-CN] .nav{gap:16px}html[lang=zh-CN] .eyebrow{letter-spacing:.06em}
@media(max-width:600px){.zyh-locale-bar{padding:4px 14px;min-height:36px;gap:4px}.zyh-snapshot-note{padding:8px 16px!important}}