/* 指南侧边目录（2026-10-15） */
.dd-guide-layout{display:grid;grid-template-columns:212px minmax(0,1fr);gap:34px;align-items:start;margin-top:18px}
.dd-guide-toc{position:sticky;top:86px;max-height:calc(100vh - 130px);overflow-y:auto;padding-right:8px;font-size:13px;border-right:1px solid var(--dd-line)}
.dd-guide-toc__label{font-size:11px;font-weight:900;letter-spacing:.12em;text-transform:uppercase;color:var(--dd-muted);margin-bottom:10px}
.dd-guide-toc a{display:block;padding:6px 8px 6px 12px;border-left:2px solid transparent;color:var(--dd-muted);text-decoration:none;line-height:1.45;transition:color .15s,border-color .15s}
.dd-guide-toc a:hover{color:var(--dd-ink)}
.dd-guide-toc a.is-active{color:var(--dd-action-dark);border-left-color:var(--dd-action);font-weight:700}
.dd-guide-toc a.lv3{padding-left:24px;font-size:12.5px}
.dd-guide-toc a.lv4{padding-left:33px;font-size:12px;opacity:.85}
@media(max-width:1000px){
.dd-guide-layout{grid-template-columns:1fr;gap:0;margin-top:14px}
.dd-guide-toc{position:static;max-height:none;border-right:0;border-bottom:1px solid var(--dd-line);margin-bottom:20px;overflow-x:auto;white-space:nowrap;padding:0 0 10px}
.dd-guide-toc__label{display:none}
.dd-guide-toc a{display:inline-block;border-left:0;border-bottom:2px solid transparent;padding:6px 12px}
.dd-guide-toc a.is-active{border-bottom-color:var(--dd-action)}
.dd-guide-toc a.lv3,.dd-guide-toc a.lv4{display:none}
}

/* 窄屏防溢出（2026-10-15） */
.dd-guide{min-width:0;overflow-wrap:break-word}
.dd-guide-layout,.dd-guide-layout>*{min-width:0}
.dd-table-scroll{max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;margin:14px 0}
.dd-table-scroll table{margin:0!important}
.dd-guide pre{max-width:100%;overflow-x:auto;white-space:pre-wrap;word-break:break-word}
.dd-guide code{overflow-wrap:break-word}
.dd-guide img{max-width:100%;height:auto}
.dd-guide h2,.dd-guide h3,.dd-guide h4{scroll-margin-top:96px}