:root{--bw-bg:#ffffff;--bw-fg:#111318;--bw-sub:#5a636d;--bw-br:#e9edf2;--bw-ac:#1f6feb;--bw-measure:72ch;--bw-gap:22px}
.bw-body{margin:0;background:var(--bw-bg);color:var(--bw-fg);font:16px/1.85 ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
.bw-skip__a{position:absolute;left:-9999px;top:auto}
.bw-skip__a:focus{left:12px;top:12px;background:#000;color:#fff;padding:8px 10px;border-radius:10px;z-index:20}
.bw-head{border-bottom:1px solid var(--bw-br);background:rgba(255,255,255,.92);backdrop-filter:blur(10px);position:sticky;top:0}
.bw-head__inner{max-width:1180px;margin:0 auto;padding:14px 16px;display:flex;gap:16px;align-items:center;justify-content:space-between}
.bw-head__brand{text-decoration:none;color:var(--bw-fg);font-weight:900;letter-spacing:.2px}
.bw-head__nav{display:flex;flex-wrap:wrap;gap:10px}
.bw-head__link{text-decoration:none;color:var(--bw-sub);padding:6px 10px;border-radius:999px}
.bw-head__link.is-active,.bw-head__link:hover{color:var(--bw-fg);background:rgba(31,111,235,.10)}
.bw-main{max-width:1180px;margin:0 auto;padding:26px 16px;display:flex;gap:var(--bw-gap);align-items:flex-start}
.bw-article{flex:1;min-width:0;max-width:var(--bw-measure);border-left:3px solid rgba(31,111,235,.18);padding-left:16px}
.bw-aside{width:320px;display:flex;flex-direction:column;gap:16px}
.bw-box{border:1px solid var(--bw-br);border-radius:14px;padding:14px;background:linear-gradient(180deg,#fff,#fbfcfe)}
.bw-box__k{font-weight:800;margin-bottom:10px}
.bw-box__v{color:var(--bw-sub)}
.bw-foot{border-top:1px solid var(--bw-br);padding:18px 0;color:var(--bw-sub)}
.bw-foot__inner{max-width:1180px;margin:0 auto;padding:0 16px;display:flex;gap:10px;align-items:center}
.bw-top{position:fixed;right:16px;bottom:16px;border:1px solid var(--bw-br);background:rgba(255,255,255,.95);border-radius:999px;padding:10px 12px;font:inherit}
.bw-top:hover{border-color:rgba(31,111,235,.4);box-shadow:0 0 0 3px rgba(31,111,235,.12)}
@media (max-width: 980px){.bw-main{flex-direction:column}.bw-aside{width:auto}}