:root .header-tools{display:flex;align-items:center;justify-content:flex-end;gap:24px;flex-wrap:wrap}.language-control{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted)}.language-control select{font:inherit;font-size:13px;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:8px;min-height:40px;padding:6px 9px;max-width:140px}.language-control select:focus-visible{outline:3px solid var(--accent);outline-offset:3px}@media(max-width:550px){header{flex-wrap:wrap}.header-tools{flex:1 1 100%;justify-content:space-between!important;gap:12px!important}.language-control{gap:6px}.language-control select{max-width:128px}html[lang=en] h1{font-size:clamp(30px,8.5vw,42px)}}
:root{color-scheme:light dark;--bg:#f5f7f5;--card:#fff;--ink:#193a31;--muted:#597268;--line:#dce5df;--accent:#17644c;--on-accent:#fff;--soft:#eaf3ed}@media(prefers-color-scheme:dark){:root{--bg:#111d18;--card:#1a2a23;--ink:#e6f0e9;--muted:#adc1b4;--line:#364d40;--accent:#a0e4b9;--on-accent:#14281d;--soft:#263f30}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.65 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}header,main,footer{max-width:1124px;margin:auto;padding:25px 22px}header{display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;gap:10px;align-items:center;font-size:24px;font-weight:700;color:var(--ink);text-decoration:none}nav{display:flex;gap:24px}nav a{color:var(--ink);text-decoration:none;font-size:14px}main{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:40px;min-height:calc(100vh - 180px);padding-top:55px;padding-bottom:65px}.eyebrow{font-size:12px;letter-spacing:.15em;color:var(--accent);font-weight:650}h1{font-size:clamp(40px,5.5vw,68px);line-height:1.2;letter-spacing:-.04em;font-weight:650;margin:14px 0 28px}.intro{color:var(--muted);font-size:17px;margin:0 0 33px}.actions{display:flex;gap:12px;flex-wrap:wrap}.actions a{display:inline-flex;align-items:center;justify-content:center;min-height:47px;padding:10px 19px;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:11px;text-decoration:none;font-weight:600;font-size:14px}.actions .primary{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}a:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.art{position:relative;display:grid;place-items:center;aspect-ratio:1.05;border:1px solid var(--line);border-radius:48% 48% 22% 22%;background:radial-gradient(ellipse at 55% 40%,var(--soft),transparent 68%);overflow:hidden}.sun{display:grid;place-items:center;width:112px;height:112px;border-radius:50%;background:var(--accent);color:var(--on-accent);font-size:61px;box-shadow:0 0 0 22px var(--soft);z-index:1}.orbit{position:absolute;border:1px solid var(--line);border-radius:50%;width:68%;height:68%}.first{transform:rotate(-30deg) scaleX(.65)}.second{transform:rotate(45deg) scaleX(.65)}.caption{position:absolute;bottom:35px;font-size:10px;letter-spacing:.21em;color:var(--muted);text-align:center}footer{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}footer a{color:var(--muted);text-decoration:none}@media(max-width:550px){header,main,footer{padding-left:18px;padding-right:18px}header{padding-top:22px}.brand{font-size:21px}nav{gap:17px}nav a{font-size:13px}main{grid-template-columns:1fr;gap:43px;padding-top:40px}h1{font-size:44px}.intro{font-size:15px}.art{width:75%;max-width:290px;margin:0 auto;aspect-ratio:1.3}.sun{width:80px;height:80px;font-size:43px}.caption{bottom:18px;font-size:8px}footer{font-size:11px}}@media(max-width:365px){h1{font-size:39px}}