:root{--color-page:#f4efe6;--color-surface:#fffaf1;--color-surface-2:#eaddcc;--color-ink:#211b19;--color-muted:#675b52;--color-line:#d8c7b2;--color-control-border:#8c7966;--color-accent:#8f2432;--color-accent-2:#2e6f68;--color-accent-3:#6d4f82;--color-gold:#ae7d3d;--shadow-soft:0 24px 72px rgba(33,27,25,0.15);--container:1180px;--radius:8px;--radius-small:6px;--header-height:66px;--header-safe-gap:24px;--header-offset:90px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:var(--header-offset)}body,html{max-width:100%;overflow-x:clip}body{min-width:0;margin:0;color:var(--color-ink);background:linear-gradient(90deg,rgba(33,27,25,.035) 1px,transparent 1px) 0 0 /44px 44px,linear-gradient(180deg,#f8f2e9 0,var(--color-page) 52%,#eee2d3 100%);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;text-rendering:optimizeLegibility}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{color:inherit}main{overflow:clip}[data-anchor-target],section[id]{scroll-margin-top:var(--header-offset)}.container{width:calc(100% - 40px);max-width:var(--container);margin:0 auto}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}:focus-visible{outline:3px solid var(--color-accent-2);outline-offset:4px}@media (max-width:860px){:root{--header-height:62px;--header-safe-gap:18px;--header-offset:80px}html{scroll-padding-top:var(--header-offset)}[data-anchor-target],section[id]{scroll-margin-top:var(--header-offset)}}@media (max-width:767px){.container{width:calc(100% - 28px)}}.document-downloads{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.document-downloads a{padding:9px 14px;border:1px solid var(--color-line);border-radius:999px;color:var(--color-accent);font-size:.82rem;font-weight:700}html[lang=zh-Hans] body{font-family:Microsoft YaHei,PingFang SC,Noto Sans CJK SC,sans-serif}.menu-language-toolbar{position:-webkit-sticky;position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 20px;background:var(--color-page);border-bottom:1px solid var(--color-line);width:100%}.menu-document-links,.menu-text-edition{width:min(100%,900px);padding:20px;margin:auto}.menu-text-edition article{padding:12px 0;border-bottom:1px solid var(--color-line)}.menu-text-edition h2{margin:28px 0 8px;color:var(--color-accent);font-size:1.2rem}.menu-text-edition h3{font-size:1rem}.skip-link{position:fixed;left:16px;top:8px;z-index:1000;padding:12px 18px;background:var(--color-surface);color:var(--color-accent);border:2px solid;transform:translateY(-150%)}.skip-link:focus{transform:translateY(0)}.retry-load{min-height:44px;padding:9px 16px;border:1px solid var(--color-accent);border-radius:6px;background:var(--color-surface);color:var(--color-accent);font-weight:700;cursor:pointer}.document-downloads a{min-height:40px;display:inline-flex;align-items:center}@media (max-width:600px){.menu-language-toolbar{flex-wrap:wrap;padding:12px 14px}.menu-language-toolbar>a{flex:1 1 130px;font-size:.85rem}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}.price-estimate{display:block;margin-top:3px;color:var(--color-muted);font-size:.8em;font-weight:500}.exchange-note{max-width:70ch;color:var(--color-muted);font-size:.8rem;line-height:1.5}