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/* Architecture assets share the surrounding graphite surface. */
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/* Language controls stay visible outside the compact mobile menu. */
.nav-inner{gap:20px}#site-nav{margin-left:auto;gap:22px}.language-switch{flex-shrink:0;font-size:12px;line-height:1;padding:10px 12px;border:1px solid #d9d9de;border-radius:20px;color:#424247;white-space:nowrap;background:#ffffff70;transition:background .2s,border-color .2s}.language-switch:hover{background:#f0f4fb;border-color:#aabed9;text-decoration:none}.language-switch span{margin-left:3px;color:#7a7a80}
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@media(max-width:900px) and (min-width:761px){.nav-inner{gap:12px}#site-nav{gap:13px}}
@media(max-width:760px){.nav-inner{gap:12px}.wordmark{margin-right:auto}.language-switch{order:1;padding:10px}.menu-toggle{order:2;margin-left:0}#site-nav{margin-left:0}.language-switch span{display:none}}

/* Selected cobalt wordmark: show the original PNG without its presentation margins. */
.echo-selected-wordmark{display:block;position:relative;width:170px;aspect-ratio:1930/295;overflow:hidden;flex-shrink:0;mix-blend-mode:multiply}
.echo-selected-wordmark img{position:absolute;display:block;width:110.3109%;max-width:none;height:auto;left:-5.18135%;top:-67.7966%}
.wordmark{flex-shrink:0}
.footer-wordmark{display:inline-block}
.footer-wordmark .echo-selected-wordmark{width:190px}
@media(max-width:900px) and (min-width:761px){.wordmark .echo-selected-wordmark{width:145px}}
@media(max-width:380px){.wordmark .echo-selected-wordmark{width:145px}}

/* Chinese display headings use centered text lines without punctuation advance. */
html[lang="zh-CN"] .hero-copy .hero-title-zh{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.18;letter-spacing:-.025em;text-align:center}
html[lang="zh-CN"] .hero-title-zh .hero-line{display:block;width:fit-content;max-width:100%;margin-inline:auto;background:none;color:var(--ink);white-space:nowrap}
html[lang="zh-CN"] .hero-title-zh .hero-accent{background:linear-gradient(105deg,#005fcc 15%,#7953cc 56%,#bb448e 95%);background-clip:text;-webkit-background-clip:text;color:transparent}
html[lang="zh-CN"] .hero-summary{line-height:1.65;text-wrap:pretty}

/* Keep all Chinese section titles and subtitles on the same visual axis. */
html[lang="zh-CN"] .echo-home .section-heading{text-align:center}
html[lang="zh-CN"] .echo-home .section-heading .display-line{display:block;width:fit-content;max-width:100%;margin-inline:auto;text-align:center;text-wrap:balance}
/* Allow tightly tracked gradient numerals to paint their full glyph bounds. */
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