.header-tools{display:flex;align-items:center;gap:10px;margin-left:auto}.language-switch{display:flex;border:1px solid var(--line)}.language-switch button{min-height:34px;padding:0 9px;border:0;border-right:1px solid var(--line);background:transparent;color:var(--ink);font:600 10px var(--mono);cursor:pointer}.language-switch button:last-child{border-right:0}.language-switch button[aria-pressed="true"]{background:var(--phosphor)}.language-switch button:focus-visible{outline:3px solid var(--sea);outline-offset:2px;position:relative;z-index:1}.translation-note{display:block;margin-top:7px;color:var(--muted);font:9px/1.5 var(--mono);letter-spacing:.025em}.source-row>div{min-width:0}html:lang(zh-CN) body{font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif}html:lang(zh-CN) .hero h1{font-size:clamp(40px,6.6vw,82px);line-height:1.05;letter-spacing:0}html:lang(zh-CN) .section-heading h2,html:lang(zh-CN) .empty-result h3,html:lang(zh-CN) .result-content h3{line-height:1.12;letter-spacing:0}html:lang(zh-CN) .wordmark,html:lang(zh-CN) .hero h1,html:lang(zh-CN) .section-heading h2,html:lang(zh-CN) .method-grid h3,html:lang(zh-CN) .source-row h3,html:lang(zh-CN) .empty-result h3{font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",sans-serif}@media(max-width:820px){.header-tools{order:2}.site-header nav{order:3}}@media(max-width:520px){.header-tools{gap:6px}.language-switch button{min-height:32px;padding:0 7px;font-size:9px}.market-tag{padding:6px 7px}html:lang(zh-CN) .hero h1{font-size:clamp(38px,10vw,46px);line-height:1.12}}