:root{--br-bg:#1d1612;--br-surface:#261d18;--br-surface-2:#2f2520;--br-line:#f4ede31f;--br-line-strong:#f4ede338;--br-paper:#f4ede3;--br-smoke:#b8a898;--br-orange:#f08a3c;--br-orange-hover:#f59d58;--br-brass:#d9b77e;--br-radius:12px;--br-radius-sm:10px;--br-display:"Unbounded Variable", "PingFang SC", "Microsoft YaHei", sans-serif;--br-body:"Manrope Variable", "PingFang SC", "Microsoft YaHei", sans-serif;--br-gutter:max(20px, calc((100vw - 1200px) / 2))}.br-btn{background:var(--br-orange);color:#1d1612;min-height:50px;font:700 15px/1 var(--br-body), sans-serif;letter-spacing:.01em;white-space:nowrap;cursor:pointer;border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;gap:10px;padding:0 26px;text-decoration:none;transition:background .2s,transform .2s;display:inline-flex}.br-btn:hover{background:var(--br-orange-hover);transform:translateY(-1px)}.br-btn-sm{min-height:40px;padding:0 18px;font-size:14px}.br-btn-ghost{border-color:var(--br-line-strong);color:var(--br-paper);background:0 0}.br-btn-ghost:hover{border-color:var(--br-paper);background:0 0}.br-btn[disabled],.br-btn.br-disabled{opacity:.4;cursor:not-allowed;transform:none}.br-header{z-index:40;border-bottom:1px solid var(--br-line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);color:var(--br-paper);font-family:var(--br-body);background:#1d1612db;position:sticky;top:0}.br-header-inner{height:68px;padding:0 var(--br-gutter);justify-content:space-between;align-items:center;gap:24px;display:flex}.br-brand{color:var(--br-paper);font-family:var(--br-display);letter-spacing:-.01em;white-space:nowrap;align-items:center;gap:10px;font-size:17px;font-weight:600;text-decoration:none;display:inline-flex}.br-brand img{border-radius:50%;width:34px;height:34px}.br-nav{align-items:center;gap:30px;display:flex}.br-nav a,.br-link-quiet{color:var(--br-smoke);font-size:14px;font-weight:600;text-decoration:none;transition:color .2s}.br-nav a:hover,.br-link-quiet:hover{color:var(--br-paper)}.br-header-actions{align-items:center;gap:18px;display:flex}.br-menu{color:var(--br-paper);cursor:pointer;background:0 0;border:0;display:none}.br-footer{border-top:1px solid var(--br-line);color:var(--br-paper);font-family:var(--br-body);background:#17110e}.br-footer-inner{padding:72px var(--br-gutter) 32px}.br-footer-top{grid-template-columns:1.5fr repeat(3,minmax(0,1fr));gap:40px;margin-bottom:48px;display:grid}.br-footer-brand p{max-width:300px;color:var(--br-smoke);margin:16px 0 0;font-size:14px;line-height:1.6}.br-footer-col{flex-direction:column;gap:12px;display:flex}.br-footer-col h2{color:var(--br-brass);letter-spacing:.14em;text-transform:uppercase;margin:0 0 4px;font-size:12px;font-weight:700}.br-footer-col a{color:var(--br-smoke);overflow-wrap:anywhere;font-size:14px;text-decoration:none;transition:color .2s}.br-footer-col a:hover{color:var(--br-paper)}.br-footer-bottom{border-top:1px solid var(--br-line);color:#8f7f71;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px 24px;margin-top:32px;padding-top:24px;font-size:13px;display:flex}.br-footer-tools{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.br-locale{border-color:var(--br-line-strong)!important;color:var(--br-paper)!important}.br-inner{background:var(--br-bg);min-height:100dvh;color:var(--br-paper);font-family:var(--br-body)}.br-page-hero{padding:72px var(--br-gutter) 40px;border-bottom:1px solid var(--br-line);background:radial-gradient(120% 140% at 85% 0%, #f08a3c24, transparent 55%), var(--br-bg)}.br-page-hero>div{max-width:760px;margin:0 auto}.br-back{color:var(--br-smoke);align-items:center;gap:8px;margin-bottom:28px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.br-back:hover{color:var(--br-paper)}.br-page-hero h1{font-family:var(--br-display);letter-spacing:-.02em;margin:0 0 14px;font-size:clamp(30px,4vw,48px);font-weight:600;line-height:1.12}.br-page-hero p{color:var(--br-smoke);margin:0;font-size:16px;line-height:1.65}.br-page-meta{color:var(--br-brass)!important;margin-top:16px!important;font-size:13px!important}.br-article{color:#f4ede3e0;max-width:760px;margin:0 auto;padding:56px 20px 96px;font-size:16px;line-height:1.8}.br-article h2{color:var(--br-paper);font-family:var(--br-display);letter-spacing:-.01em;margin:48px 0 14px;font-size:22px;font-weight:600;line-height:1.3}.br-article h3{color:var(--br-paper);margin:32px 0 10px;font-size:18px;font-weight:700}.br-article a{color:var(--br-orange);text-underline-offset:3px}@media (width<=960px){.br-nav{gap:20px}.br-footer-top{grid-template-columns:1fr 1fr}}@media (width<=820px){.br-header-inner{height:60px}.br-nav{padding:8px var(--br-gutter) 18px;border-bottom:1px solid var(--br-line);background:var(--br-bg);flex-direction:column;align-items:stretch;gap:0;display:none;position:absolute;top:60px;left:0;right:0}.br-nav-open{display:flex}.br-nav a{padding:14px 0;font-size:16px}.br-menu{place-items:center;display:grid}.br-link-quiet{display:none}}@media (width<=520px){.br-footer-top{grid-template-columns:1fr}.br-header-actions .br-btn-sm{padding:0 14px}}@media (prefers-reduced-motion:reduce){.br-btn{transition:none}}