/* 胡翌霖 · 深读 · “壳 85”的帮助窗口
   名片上的每一屏是一个程序，深读就是这台电脑的帮助文件：左边目录，右边一页白纸；
   绿色虚线的注释编号沿用旧帮助系统里“弹出解释”的样子。 */

html.deep { scroll-snap-type: none; scroll-padding-top: 76px; }
body.hu-deep { font-size: 18px; line-height: 1.95; }

/* ---------- 窗口 ---------- */
.hwin { width: min(1280px, calc(100% - 48px)); margin: 20px auto calc(var(--bar-h) + 24px); }
.hwin__top { position: sticky; top: 0; z-index: 30; background: var(--face); margin: -3px -3px 0; padding: 3px 3px 0; }
.hwin__top .tb__b a { cursor: pointer; }
.hwin__top .tb__b a:focus-visible { outline: 1px dotted #fff; outline-offset: 1px; }
.hbar { display: flex; flex-wrap: wrap; gap: 4px; padding: 4px 1px 4px; border-bottom: 1px solid var(--lo); box-shadow: 0 1px var(--hi); }
.hbar .btn { min-width: 72px; }
.hbar__toc { display: none; }
.hwin__body { display: grid; grid-template-columns: 264px minmax(0, 1fr); gap: 4px; padding-top: 5px; align-items: start; }

/* ---------- 目录（树形视图） ---------- */
.toc {
  position: sticky; top: 64px; max-height: calc(100vh - 64px - var(--bar-h) - 34px); overflow: auto;
  background: var(--paper); padding: 6px 4px 10px;
  box-shadow: inset -1px -1px var(--hi), inset 1px 1px var(--lo), inset -2px -2px var(--lite), inset 2px 2px var(--ink);
}
.toc__h { display: flex; align-items: center; gap: 6px; margin: 0 0 4px; padding: 2px 6px; }
.toc ol { list-style: none; margin: 0; padding: 0 0 0 14px; border-left: 1px dotted var(--lo); margin-left: 13px; }
.toc li { position: relative; }
.toc li::before { content: ""; position: absolute; left: -14px; top: 12px; width: 12px; border-top: 1px dotted var(--lo); }
.toc a { display: flex; align-items: flex-start; gap: 6px; padding: 3px 6px 3px 3px; color: var(--ink); text-decoration: none; }
.toc a .ico { margin-top: 0; }
.toc a span { padding: 0 2px; }
.toc a:hover span { text-decoration: underline; }
.toc a[aria-current="true"] span { background: var(--sel); color: #fff; outline: 1px dotted #ffff00; outline-offset: -1px; }
.toc a:focus-visible { outline: 1px dotted var(--ink); outline-offset: -1px; }

/* ---------- 纸面 ---------- */
.paper {
  min-width: 0; background: var(--paper); padding: 44px clamp(20px, 5vw, 72px) 64px;
  box-shadow: inset -1px -1px var(--hi), inset 1px 1px var(--lo), inset -2px -2px var(--lite), inset 2px 2px var(--ink);
}
.paper > * { max-width: 780px; margin-left: auto; margin-right: auto; }
.paper p { margin: 0 0 1.15em; text-align: justify; text-justify: inter-character; }
.paper .notes .nb { margin: 0; text-align: left; }
.paper a { color: var(--link); }
.paper a:visited { color: var(--visited); }

.dhead { display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 24px; align-items: end; padding-bottom: 22px; border-bottom: 1px solid var(--ink); margin-bottom: 18px; }
.dhead h1 { margin: 0; font-weight: 900; font-size: clamp(40px, 5.2vw, 64px); line-height: 1.12; letter-spacing: .02em; }
.dhead__sub { margin: 12px 0 14px; font-size: 22px; line-height: 1.5; font-weight: 700; }
.dhead__m { margin: 0 !important; color: #333; }
.dhead__img { width: 220px; height: auto; image-rendering: pixelated; justify-self: end; }
.tip { display: flex; align-items: flex-start; gap: 8px; padding: 6px 10px; background: var(--tip); border: 1px solid var(--ink); margin-bottom: 28px !important; text-align: left !important; }
.tip .ico { flex: none; }
.lead p { font-size: 19.5px; line-height: 1.95; }

/* 节 */
.dsec { margin-top: 64px; }
.dsec__h { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin: 0 0 22px; padding-top: 18px; border-top: 2px solid var(--ink); }
.dsec__h h2 { margin: 0; flex: 1 1 18em; font-weight: 900; font-size: clamp(26px, 2.6vw, 32px); line-height: 1.4; }
.dsec__n { display: inline-grid; place-items: center; min-width: 30px; height: 30px; padding: 0 6px; margin-right: 12px; background: var(--title-a); color: #fff; font-family: var(--pix); font-size: 12px; line-height: 16px; font-weight: normal; -webkit-font-smoothing: none; vertical-align: 5px; }
.btn--card { flex: none; }
.btn--card:visited { color: var(--ink); }
.dsec h3 { margin: 28px 0 10px; font-size: 19px; line-height: 1.5; font-weight: 900; }
/* 师承一节末尾：像旧帮助文件的“相关主题”，列出师门的学术名片 */
.paper .dkin { margin: 1.4em 0 0; padding: 10px 14px; background: var(--tip); border: 1px solid var(--ink); font-size: 15.5px; line-height: 1.9; text-align: left; }
.dkin b { display: block; font-size: 14px; }
.dkin a { color: var(--sel); }

/* 注释引用：旧帮助系统里的“弹出解释”——绿色虚线 */
.fnr { font-size: 12px; line-height: 0; vertical-align: 8px; margin: 0 1px; }
a.fn, a.fn:visited { font-family: var(--pix); font-size: 12px; line-height: 16px; color: #008000; text-decoration: underline dotted; text-underline-offset: 2px; padding: 0 1px; -webkit-font-smoothing: none; }
a.fn:hover, a.fn:focus-visible, a.fn.is-on { background: #008000; color: #fff; text-decoration: none; outline: none; }

/* 清单 */
.dlist { list-style: none; margin: 0 0 1.2em; padding: 0; }
.dlist li { position: relative; padding-left: 20px; margin: 0 0 .5em; font-size: 16.5px; line-height: 1.8; }
.dlist li::before { content: ""; position: absolute; left: 3px; top: .78em; width: 6px; height: 6px; background: var(--ink); }

/* 参考资料 */
.notes { list-style: none; margin: 0; padding: 0; font-size: 14.5px; line-height: 1.8; }
.notes li { display: grid; grid-template-columns: 34px minmax(0, 1fr); column-gap: 8px; padding: 6px 6px 6px 0; border-bottom: 1px dotted #b0b0b0; }
.notes li:target { background: var(--tip); outline: 1px solid var(--ink); }
.notes .nn { font-family: var(--pix); font-size: 12px; line-height: 26px; color: #008000; text-align: right; -webkit-font-smoothing: none; }
.notes .nb { margin: 0; text-align: left; overflow-wrap: anywhere; }
.notes .back { margin-left: 8px; font-family: var(--pix); font-size: 12px; line-height: 16px; -webkit-font-smoothing: none; white-space: nowrap; }

.fine { margin-top: 56px !important; padding-top: 16px; border-top: 1px dotted var(--ink); font-size: 14px; line-height: 1.85; color: #333; }
.fine p { margin: 0 0 8px; text-align: left; }

/* 状态栏：贴在任务栏上方 */
.hwin__sb { position: sticky; bottom: var(--bar-h); z-index: 30; background: var(--face); margin: 2px -3px -3px; padding: 2px 3px 3px; }
.hwin__sb > span:first-child { flex: 1 1 auto; }
.hwin__sb > span { flex: 0 0 auto; }

/* ---------- 弹出注释 ---------- */
.fnpop {
  position: fixed; z-index: 80; left: 0; top: 0; width: min(440px, calc(100vw - 24px)); max-height: 50vh; overflow: auto;
  background: #fff; color: var(--ink); border: 1px solid var(--ink); box-shadow: 3px 3px 0 rgba(0, 0, 0, .55);
  padding: 10px 14px 12px; font-size: 14.5px; line-height: 1.8;
}
.fnpop__n { display: block; font-family: var(--pix); font-size: 12px; line-height: 16px; color: #008000; font-weight: normal; margin-bottom: 4px; -webkit-font-smoothing: none; }
.fnpop__t { overflow-wrap: anywhere; }
.fnpop__go { display: inline-block; margin-top: 6px; font-family: var(--pix); font-size: 12px; line-height: 16px; -webkit-font-smoothing: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hwin__body { grid-template-columns: 220px minmax(0, 1fr); }
  .dhead { grid-template-columns: minmax(0, 1fr) 150px; }
  .dhead__img { width: 150px; }
}
@media (max-width: 760px) {
  html.deep { scroll-padding-top: 70px; }
  body.hu-deep { font-size: 17px; }
  .hwin { width: 100%; margin: 0 0 var(--bar-h); }
  .hwin__top { margin: 0; padding: 0 0 0; }
  .hbar { padding: 3px 3px; gap: 3px; }
  .hbar .btn { min-width: 0; padding: 4px 8px; }
  .hbar__toc { display: inline-flex; }
  .hbar__print { display: none; }
  .hwin__body { grid-template-columns: minmax(0, 1fr); }
  .toc { display: none; position: fixed; z-index: 45; top: 60px; left: 6px; right: 6px; max-height: calc(100vh - 60px - var(--bar-h) - 16px); box-shadow: inset -1px -1px var(--ink), inset 1px 1px var(--hi), inset -2px -2px var(--lo), inset 2px 2px var(--lite), 4px 4px 0 rgba(0, 0, 0, .45); }
  body.toc-open .toc { display: block; }
  .paper { padding: 26px 16px 44px; }
  .dhead { grid-template-columns: minmax(0, 1fr); gap: 14px; }
  .dhead__img { grid-row: 1; width: 132px; justify-self: start; }
  .dhead h1 { font-size: 40px; }
  .dhead__sub { font-size: 19px; }
  .lead p { font-size: 18px; }
  .paper p { text-align: left; }
  .dsec { margin-top: 48px; }
  .hwin__sb { display: none; }
}

@media print {
  .desk, .tbar, .smenu, .hwin__top, .toc, .hwin__sb, .tip, .btn--card, .fnpop, .skip { display: none !important; }
  body.hu-deep { background: #fff; }
  .hwin { width: auto; margin: 0; padding: 0; box-shadow: none; background: #fff; }
  .hwin__body { display: block; }
  .paper { box-shadow: none; padding: 0; }
  a.fn { color: #000; text-decoration: none; }
}