@charset "UTF-8";
:root{color-scheme:dark;--bg:#141815;--panel:#1b201c;--ink:#f2f4ed;--muted:#a2aca0;--line:#343d32;--accent:#c6f568;--accent-ink:#17200d;--grid:#293226}
:root[data-theme="light"]{color-scheme:light;--bg:#f1f2e9;--panel:#e7eadf;--ink:#1c291c;--muted:#596451;--line:#cbd2bf;--accent:#c6f568;--accent-ink:#17200d;--grid:#d7dfcd}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;transition:background .2s,color .2s}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit}a{color:inherit;text-decoration:none}button{cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:6px}.page{max-width:1440px;margin:auto;padding:0 64px}header{height:104px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.wordmark{display:flex;align-items:center;gap:12px;font-size:14px;font-weight:700;letter-spacing:1.2px}.brand-icon{display:grid;place-items:center;width:32px;height:32px;background:var(--accent);color:var(--accent-ink);border-radius:9px;font-size:26px;letter-spacing:-3px;padding-right:3px}.slash{color:var(--muted);padding:0 5px}.muted{color:var(--muted)}.theme{background:none;color:var(--ink);border:1px solid var(--line);border-radius:30px;padding:10px 16px;display:flex;gap:9px;align-items:center;font-size:13px;min-height:44px}.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:50px;align-items:center;padding:76px 0 70px}.eyebrow{font-size:11px;letter-spacing:2px;display:flex;align-items:center;gap:9px;font-weight:700}.dot{height:7px;width:7px;flex-shrink:0;border-radius:100%;background:var(--accent)}.edition{margin-left:20px;color:var(--muted);font-size:10px;letter-spacing:1px}h1{font-size:clamp(48px,5.6vw,80px);line-height:1.19;margin:36px 0 24px;letter-spacing:-3px;font-weight:700}.accent{color:var(--accent)}:root[data-theme="light"] .accent{color:#638f18}.lead{color:var(--muted);font-size:17px;line-height:1.9;margin:0}.hero-actions{display:flex;align-items:center;gap:24px;margin-top:38px}.primary{background:var(--accent);color:var(--accent-ink);border-radius:5px;padding:17px 22px;font-size:14px;font-weight:700;display:flex;gap:30px;align-items:center;white-space:nowrap}.primary:hover{filter:brightness(1.08)}.version{font-size:10px;color:var(--muted);letter-spacing:1px}.signal{aspect-ratio:1;position:relative;overflow:hidden;background:var(--panel);border:1px solid var(--line);border-radius:50% 50% 5px 5px}.signal-grid{position:absolute;inset:0;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:36px 36px;opacity:.8}.orbit{border:1px solid var(--line);border-radius:50%;position:absolute;top:46%;left:50%;transform:translate(-50%,-50%) rotate(-26deg)}.orbit-a{width:85%;height:85%}.orbit-b{width:98%;height:46%;border-color:var(--muted)}.orbit-c{width:57%;height:57%}.planet{width:39%;height:39%;border-radius:50%;position:absolute;top:46%;left:50%;transform:translate(-50%,-50%) rotate(-10deg);background:var(--accent);color:var(--accent-ink);display:flex;align-items:center;justify-content:center;font-size:clamp(70px,9vw,130px);font-family:Georgia,serif;letter-spacing:-13px;padding-right:14px;box-shadow:0 0 70px #c6f56812}.planet span{font-family:Arial,sans-serif}.satellite{position:absolute;border-radius:50%;background:var(--accent);width:13px;height:13px;border:4px solid var(--panel);box-sizing:content-box}.sat-a{top:25%;right:12%}.sat-b{bottom:26%;left:13%;width:6px;height:6px}.signal-label{position:absolute;left:24px;bottom:25px;font-size:10px;letter-spacing:1.7px;line-height:1.7;color:var(--muted)}.coordinates{position:absolute;right:24px;bottom:26px;font-size:10px;letter-spacing:1px;color:var(--muted)}.diagnostics{border-top:1px solid var(--line);padding:30px 0 35px;scroll-margin-top:20px}.section-heading{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:24px}.section-heading h2{font-size:16px;font-weight:500;margin:0}.section-heading>span{font-size:10px;color:var(--muted);letter-spacing:1.5px}.checks{display:grid;grid-template-columns:1.2fr .8fr 1fr;border:1px solid var(--line);border-radius:6px;overflow:hidden}.check{padding:25px 26px;display:flex;flex-direction:column;gap:14px;min-width:0}.check+.check{border-left:1px solid var(--line)}.check-label{color:var(--muted);font-size:12px}.check strong{font-size:19px;font-weight:500;overflow-wrap:anywhere;line-height:1.4}.detail{font-size:11px;line-height:1.7;color:var(--muted)}.interactive button{align-self:flex-start;background:none;border:0;border-bottom:1px solid var(--muted);padding:0 0 4px;color:var(--ink);font-size:18px;min-height:32px;display:flex;gap:25px}.interactive button:hover{color:var(--accent)}:root[data-theme="light"] .interactive button:hover{color:#476b0b}.note{font-size:11px;color:var(--muted);line-height:1.7;margin:16px 0 0}footer{border-top:1px solid var(--line);padding:25px 0 30px;display:flex;justify-content:space-between;gap:24px;font-size:10px;letter-spacing:.6px}.footer-domain{color:var(--muted)}
@media(min-width:1500px){.hero{padding-top:90px;padding-bottom:90px}}
@media(max-width:1000px){.page{padding:0 32px}.hero{gap:26px}.edition{display:none}.hero-actions{gap:16px}.version{display:none}.check{padding:22px 18px}.check strong{font-size:16px}.footer-domain{display:none}}
@media(max-width:680px){.page{padding:0 22px}header{height:80px}.wordmark{gap:8px;font-size:11px;letter-spacing:.8px}.slash{padding:0 2px}.theme{padding:8px 11px}.hero{grid-template-columns:1fr;padding:43px 0 36px;gap:38px}h1{font-size:56px;margin-top:28px}.lead{font-size:15px}.hero-actions{margin-top:28px}.signal{max-width:440px;width:100%;margin:auto;aspect-ratio:1.2}.planet{font-size:100px;width:34%;height:41%}.section-heading{align-items:flex-start}.section-heading h2{font-size:14px}.section-heading>span{font-size:9px;max-width:70px;line-height:1.6;text-align:right}.checks{grid-template-columns:1fr}.check+.check{border-left:0;border-top:1px solid var(--line)}.check{padding:22px;gap:10px}.check strong{font-size:18px}footer{flex-wrap:wrap;gap:14px;line-height:1.8}.interactive button{min-height:44px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}body{transition:none}}