/* ===================================================================
   女娲计划 · 文档页样式（与官网 styles.css 共用 :root 变量）
   布局：顶部文档导航 + 左侧目录(TOC) + 右侧正文
   =================================================================== */

/* ---------- 文档顶部导航 ---------- */
.docnav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(7, 7, 17, 0.72);
  border-bottom: 1px solid var(--border);
}
.docnav__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 12px 24px;
  display: flex; align-items: center; gap: 16px;
}
.docnav__brand {
  font-family: var(--font-display); font-weight: 800; font-size: 18px; color: #fff;
  display: flex; align-items: center; gap: 9px;
}
.docnav__brand .brand__logo { width: 28px; height: 28px; }
.docnav__brand em { font-style: normal; font-size: 11px; letter-spacing: 2px; color: var(--muted-2); font-weight: 600; margin-left: 2px; }
.docnav__chip {
  font-family: var(--font-display); font-size: 12px; font-weight: 700; color: var(--gold);
  border: 1px solid rgba(251, 191, 36, 0.4); border-radius: 999px; padding: 4px 12px; white-space: nowrap;
}
/* ---------- 文档切换下拉框（自定义组件） ---------- */
.docnav__dd { position: relative; margin-left: auto; }
.docnav__btn {
  display: inline-flex; align-items: center; gap: 10px;
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  color: var(--text); border: 1px solid var(--border); border-radius: 12px;
  padding: 9px 14px; font-family: var(--font-display); font-weight: 700; font-size: 14px;
  cursor: pointer; min-width: 168px; transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.docnav__btn:hover { border-color: var(--border-strong); background: var(--surface); }
.docnav__dd.is-open .docnav__btn {
  border-color: rgba(167,139,250,0.55);
  box-shadow: 0 0 0 3px rgba(167,139,250,0.16);
}
.docnav__btn-label { flex: 1; text-align: left; color: #fff; }
.docnav__chev { color: var(--muted); flex: none; transition: transform 0.25s var(--ease); }
.docnav__dd.is-open .docnav__chev { transform: rotate(180deg); color: var(--violet); }

.docnav__menu {
  position: absolute; top: calc(100% + 10px); right: 0; z-index: 60;
  width: min(320px, 78vw);
  background: rgba(12, 12, 24, 0.96); backdrop-filter: blur(18px);
  border: 1px solid var(--border-strong); border-radius: 16px;
  box-shadow: 0 24px 60px -18px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.03) inset;
  padding: 8px; opacity: 0; visibility: hidden; transform: translateY(-8px) scale(0.98);
  transform-origin: top right; transition: opacity 0.18s var(--ease), transform 0.18s var(--ease), visibility 0.18s;
  overflow: hidden;
}
.docnav__dd.is-open .docnav__menu { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
.docnav__menu-inner { max-height: min(62vh, 460px); overflow-y: auto; padding-right: 4px; }

.docnav__item {
  display: flex; align-items: baseline; gap: 12px; padding: 10px 12px; border-radius: 10px;
  text-decoration: none; border-left: 3px solid transparent; transition: background 0.18s, border-color 0.18s;
}
.docnav__item b {
  font-family: var(--font-display); font-weight: 800; font-size: 13.5px; color: var(--gold);
  flex: none; min-width: 46px;
}
.docnav__item span { color: var(--muted); font-size: 13.5px; line-height: 1.45; }
.docnav__item:hover { background: var(--surface); }
.docnav__item:hover span { color: var(--text); }
.docnav__item.is-current { background: linear-gradient(90deg, rgba(167,139,250,0.14), transparent); border-left-color: var(--violet); }
.docnav__item.is-current b { color: #fff; }
.docnav__item.is-current span { color: var(--text); }

/* 下拉列表滚动条（与左侧目录一致） */
.docnav__menu-inner::-webkit-scrollbar { width: 8px; }
.docnav__menu-inner::-webkit-scrollbar-track { background: transparent; }
.docnav__menu-inner::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--cyan), var(--violet)); border-radius: 999px;
  border: 2px solid transparent; background-clip: padding-box;
}
.docnav__menu-inner::-webkit-scrollbar-thumb:hover { background: linear-gradient(var(--violet), var(--gold)); background-clip: padding-box; }
.docnav__menu-inner { scrollbar-width: thin; scrollbar-color: var(--violet) transparent; }
.docnav__back {
  font-family: var(--font-sans); font-size: 14px; color: var(--muted);
  border: 1px solid var(--border); border-radius: 10px; padding: 8px 14px; white-space: nowrap;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.docnav__back:hover { color: var(--text); border-color: var(--border-strong); background: var(--surface); }

/* ---------- 两栏布局 ---------- */
.doclayout {
  max-width: var(--maxw); margin: 0 auto; padding: 44px 24px 96px;
  display: grid; grid-template-columns: 250px 1fr; gap: 52px; align-items: start;
}

/* ---------- 目录 TOC ---------- */
.doctoc {
  position: sticky; top: 84px; align-self: start;
  max-height: calc(100vh - 110px); overflow: auto;
  font-size: 13.5px; padding-right: 8px;
}
/* 左侧目录自定义滚动条（五色石渐变） */
.doctoc::-webkit-scrollbar { width: 8px; }
.doctoc::-webkit-scrollbar-track { background: transparent; }
.doctoc::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--cyan), var(--violet), var(--gold));
  border-radius: 999px; border: 2px solid transparent; background-clip: padding-box;
}
.doctoc::-webkit-scrollbar-thumb:hover { background: linear-gradient(var(--rose), var(--emerald)); background-clip: padding-box; }
.doctoc { scrollbar-width: thin; scrollbar-color: var(--violet) transparent; }
.doctoc .toc { margin: 0; }
.doctoc ul { list-style: none; padding: 0; margin: 0; border-left: 1px solid var(--border); }
.doctoc li { margin: 0; }
.doctoc a {
  display: block; padding: 6px 14px; color: var(--muted);
  border-left: 2px solid transparent; margin-left: -1px; line-height: 1.5;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.doctoc a:hover { color: var(--text); background: var(--surface); }
.doctoc a.active { color: var(--text); border-left-color: var(--violet); background: var(--surface); }
.doctoc li li a { padding-left: 28px; font-size: 12.5px; }
.doctoc li li li a { padding-left: 42px; }

/* ---------- 正文排版 ---------- */
.article { max-width: 840px; min-width: 0; }
.article h1 {
  font-family: var(--font-display); font-weight: 800; font-size: clamp(28px, 5vw, 44px);
  line-height: 1.18; margin: 6px 0 30px; color: #fff;
}
.article h2 {
  font-family: var(--font-display); font-weight: 800; font-size: clamp(22px, 3.4vw, 30px);
  line-height: 1.3; margin: 46px 0 16px; padding-left: 14px;
  border-left: 4px solid transparent; border-image: var(--grad) 1; color: #fff;
}
.article h3 {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(18px, 2.6vw, 22px);
  margin: 32px 0 12px; color: #fff;
}
.article h4 { font-family: var(--font-sans); font-weight: 700; font-size: 17px; margin: 24px 0 10px; color: #fff; }
.article p { color: var(--muted); font-size: 16px; line-height: 1.9; margin: 14px 0; }
.article strong, .article b { color: #fff; font-weight: 700; }
.article ul, .article ol { color: var(--muted); font-size: 16px; line-height: 1.9; padding-left: 22px; margin: 14px 0; }
.article li { margin: 7px 0; }
.article a { color: var(--cyan); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(34, 211, 238, 0.4); }
.article a:hover { text-decoration-color: var(--cyan); }
.article hr { border: 0; border-top: 1px solid var(--border); margin: 36px 0; }

.article code {
  font-family: "Sora", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 6px; padding: 2px 6px; color: #fde68a;
}
.article pre {
  background: rgba(0, 0, 0, 0.38); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 18px 20px; overflow: auto; margin: 18px 0; line-height: 1.6;
}
.article pre::-webkit-scrollbar { height: 8px; width: 8px; }
.article pre::-webkit-scrollbar-track { background: transparent; }
.article pre::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 999px; border: 2px solid transparent; background-clip: padding-box; }
.article pre::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }
.article pre { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
.article pre code { background: none; border: 0; padding: 0; color: #e6e6f0; font-size: 14px; }

.article blockquote {
  background: var(--grad-soft); border: 1px solid var(--border); border-left: 3px solid var(--gold);
  border-radius: var(--radius-sm); padding: 16px 20px; margin: 18px 0; color: var(--text); font-size: 15.5px;
}
.article blockquote p { color: var(--text); margin: 6px 0; }

.table-wrap { overflow-x: auto; margin: 18px 0; border-radius: var(--radius-sm); border: 1px solid var(--border); }
.article table { width: 100%; border-collapse: collapse; font-size: 14.5px; color: var(--muted); min-width: 520px; }
.article th, .article td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.article thead th { background: var(--surface-2); color: #fff; font-weight: 700; }
.article tbody tr:hover { background: var(--surface); }
.article tbody tr:last-child td { border-bottom: 0; }

/* ---------- 上/下篇导航 ---------- */
.docpager { max-width: 840px; margin: 64px auto 0; display: flex; justify-content: space-between; gap: 16px; }
.docpager > a {
  flex: 1; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 16px 20px; transition: transform 0.2s var(--ease), border-color 0.3s, background 0.3s;
}
.docpager > a:hover { border-color: var(--border-strong); background: var(--surface-2); transform: translateY(-3px); }
.docpager > a span { display: block; }
.docpager small { display: block; color: var(--muted-2); font-size: 12px; margin-bottom: 6px; }
.docpager b { color: #fff; font-size: 15px; font-weight: 700; }
.docpager .next { text-align: right; }

/* ---------- 响应式 ---------- */
@media (max-width: 920px) {
  .doclayout { grid-template-columns: 1fr; gap: 24px; padding-top: 28px; }
  .doctoc {
    position: static; max-height: none; border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 14px 16px; background: var(--surface);
  }
  .docnav__dd { margin-left: auto; }
}
@media (max-width: 560px) {
  .docnav__inner { flex-wrap: wrap; gap: 10px; }
  .docnav__dd { margin-left: 0; order: 3; flex: 1 1 100%; }
  .docnav__btn { width: 100%; }
  .docnav__menu { width: 100%; right: 0; }
  .docpager { flex-direction: column; }
}