:root{color-scheme:light dark;--bg: #f5f7fb;--panel: #ffffff;--text: #1f2937;--muted: #667085;--border: #e5e7eb;--link: #2563eb;--note: #f8fafc}@media(prefers-color-scheme:dark){:root{--bg: #111827;--panel: #182033;--text: #f5f7fb;--muted: #aab4c5;--border: #2d374b;--link: #7db1ff;--note: #141c2e}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.75 -apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Helvetica Neue,Arial,sans-serif}a{color:var(--link);text-decoration:none}a:hover{text-decoration:underline}.shell{width:min(900px,calc(100% - 32px));margin:0 auto;padding:24px 0 44px}.panel{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:32px 26px}h1,h2,p{margin-top:0}h1{text-align:center;font-size:30px;line-height:1.3;margin-bottom:10px}h2{font-size:20px;line-height:1.35;margin:30px 0 12px}p{margin-bottom:14px}ul{margin:0 0 14px 22px;padding:0}li{margin-bottom:8px}.lead{text-align:center;color:var(--muted);margin-bottom:28px}.lang-nav{display:flex;justify-content:flex-end;gap:8px;flex-wrap:wrap;margin-bottom:18px}.lang-nav a{border:1px solid var(--border);border-radius:999px;padding:4px 10px;color:var(--muted);font-size:14px}.lang-nav a.active{border-color:var(--link);color:var(--link)}.note{margin-top:30px;padding:14px 16px;border-radius:8px;background:var(--note);border:1px solid var(--border)}footer{margin-top:34px;padding-top:18px;border-top:1px solid var(--border);text-align:center;color:var(--muted);font-size:14px}footer p{margin-bottom:6px}.app-list{display:grid;gap:10px}.app-link{display:flex;justify-content:space-between;gap:16px;padding:14px 16px;border:1px solid var(--border);border-radius:8px;color:var(--text)}.app-link span{color:var(--muted)}@media(max-width:640px){.shell{width:min(100% - 24px,900px);padding-top:12px}.panel{padding:24px 18px}h1{font-size:25px}h2{font-size:18px}.lang-nav{justify-content:center}}