/* jikaf 样式：对话记录 */
:root {
  --jk-paper: #f1f3f9;
  --jk-ink: #1e1b3a;
  --jk-ink-2: #464a68;
  --jk-ink-3: #5d6180;
  --jk-accent: #0a6c8f;
  --jk-accent-deep: #08536e;
  --jk-note: #ffe08a;
  --jk-note-soft: #fff4cc;
  --jk-line: #d6dbea;
  --jk-surface: #ffffff;
  --jk-r-l: 23px;
  --jk-r-s: 11px;
  --jk-latin: "Malgun Gothic", "Segoe UI", sans-serif;
  --jk-cjk: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", sans-serif;
  --jk-w: 1160px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--jk-paper);
  color: var(--jk-ink);
  font-family: var(--jk-cjk);
  font-size: 16px;
  line-height: 1.75;
  overflow-wrap: break-word;
}
img { max-width: 100%; height: auto; }
a { color: var(--jk-accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--jk-accent-deep); text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--jk-accent); outline-offset: 3px; border-radius: 4px; }
code { font-family: var(--jk-latin); font-size: .92em; background: var(--jk-surface); border: 1px solid var(--jk-line); border-radius: 6px; padding: .05em .4em; word-break: break-all; }

.jk-skip {
  position: absolute; left: 12px; top: -60px; z-index: 20;
  background: var(--jk-ink); color: #fff; padding: 12px 16px; border-radius: var(--jk-r-s);
  min-height: 44px; display: inline-flex; align-items: center;
}
.jk-skip:focus { top: 12px; color: #fff; }
.jk-vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
.jk-nb { display: inline-block; }

/* 顶栏 */
.jk-top { background: var(--jk-surface); border-bottom: 1px solid var(--jk-line); }
.jk-top-in {
  max-width: var(--jk-w); margin: 0 auto; padding: 8px 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.jk-brand { display: inline-flex; align-items: center; min-height: 44px; color: var(--jk-ink); text-decoration: none; }
.jk-brand:hover { color: var(--jk-ink); }
.jk-logo { display: block; width: 116px; height: auto; }
.jk-nav-ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; flex-wrap: wrap; }
.jk-nav-a {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px; min-width: 44px; padding: 0 14px;
  border-radius: 999px; color: var(--jk-ink-2); text-decoration: none; font-size: 15px;
}
.jk-nav-a:hover { background: var(--jk-paper); color: var(--jk-ink); }
.jk-nav-a[aria-current="page"] { background: var(--jk-ink); color: #fff; }

.jk-main { display: block; outline: none; }
.jk-wrap { max-width: var(--jk-w); margin: 0 auto; padding: 28px 16px 56px; }

.jk-h1 {
  font-size: 41px; line-height: 1.28; margin: 0 0 14px; font-weight: 700;
  line-break: strict; letter-spacing: .01em;
}

/* 首屏 */
.jk-hero {
  max-width: var(--jk-w); margin: 0 auto; padding: 36px 16px 40px;
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  grid-template-areas: "head pin" "rec chat" "gap chat";
  grid-template-rows: auto auto 1fr;
  column-gap: 56px; row-gap: 22px; align-items: start;
}
.jk-hero-head { grid-area: head; }
.jk-hero-pin { grid-area: pin; }
.jk-hero-rec { grid-area: rec; }
.jk-hero-chat { grid-area: chat; }
.jk-lead { font-size: 18px; color: var(--jk-ink-2); margin: 0; max-width: 30em; }
.jk-risk { font-size: 14px; color: var(--jk-ink-3); margin: 10px 4px 0; }

/* 置顶消息（码卡） */
.jk-pin {
  background: var(--jk-note-soft); border: 1px solid #f1d27a;
  border-radius: var(--jk-r-s) var(--jk-r-s) var(--jk-r-l) var(--jk-r-l);
  padding: 14px 18px 16px;
}
.jk-pin-tag { margin: 0 0 6px; font-size: 13px; color: #6d5a12; display: flex; align-items: center; gap: 8px; }
.jk-pin-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--jk-accent); box-shadow: 0 0 0 3px var(--jk-note); }
.jk-pin-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.jk-pin-label { font-size: 15px; color: var(--jk-ink-2); }
.jk-pin-code {
  font-family: var(--jk-latin); font-size: 27px; font-weight: 700; letter-spacing: .06em;
  background: var(--jk-surface); border: 1px dashed #d6b54a; border-radius: var(--jk-r-s);
  padding: 2px 14px; color: var(--jk-ink); user-select: all; word-break: normal;
}
.jk-copy {
  font: inherit; font-size: 15px; min-height: 44px; min-width: 76px; padding: 0 18px;
  border: 0; border-radius: 999px; background: var(--jk-accent); color: #fff; cursor: pointer;
}
.jk-copy:hover { background: var(--jk-accent-deep); }
.jk-copy[data-jk-done] { background: var(--jk-ink); }
.jk-pin-note { margin: 10px 0 0; font-size: 15px; line-height: 1.65; color: var(--jk-ink); text-wrap: pretty; }
.jk-nw { white-space: nowrap; }
h1, h2 { text-wrap: balance; }
.jk-pin-go { margin: 14px 0 0; }
.jk-reg {
  display: inline-flex; align-items: center; min-height: 48px; padding: 0 22px;
  background: var(--jk-ink); color: #fff; border-radius: 999px; text-decoration: none; font-size: 16px;
}
.jk-reg:hover { background: var(--jk-accent-deep); color: #fff; }
.jk-pin-dis { margin: 10px 0 0; font-size: 13.5px; line-height: 1.65; color: var(--jk-ink-2); }

/* 教程入口 */
.jk-rec-tag { margin: 0 0 8px; font-size: 14px; color: var(--jk-accent); font-weight: 700; }
.jk-rec-a {
  display: block; text-decoration: none; color: var(--jk-ink);
  background: var(--jk-surface); border: 1px solid var(--jk-line); border-left: 5px solid var(--jk-accent);
  border-radius: var(--jk-r-s); padding: 14px 18px;
}
.jk-rec-a:hover { border-color: var(--jk-accent); color: var(--jk-ink); }
.jk-rec-t { display: block; font-size: 19px; font-weight: 700; line-height: 1.45; }
.jk-rec-d { display: block; margin-top: 6px; font-size: 15px; color: var(--jk-ink-2); line-height: 1.65; }

.jk-jump-h { margin: 22px 0 4px; font-size: 14px; color: var(--jk-ink-3); }
.jk-jump { list-style: none; margin: 0; padding: 0; }
.jk-jump li { border-bottom: 1px dashed var(--jk-line); }
.jk-jump a { display: flex; align-items: center; min-height: 44px; padding: 6px 0; color: var(--jk-ink); text-decoration: none; font-size: 15.5px; line-height: 1.5; }
.jk-jump a::after { content: ""; flex: none; width: 7px; height: 7px; margin-left: auto; border-top: 2px solid var(--jk-accent); border-right: 2px solid var(--jk-accent); transform: rotate(45deg); }
.jk-jump a:hover { color: var(--jk-accent); }
.jk-art-body .jk-pin { margin: 4px 0 1.6em; max-width: 38em; }

/* 对话记录：全站唯一的大动作 */
.jk-hero-chat {
  background: var(--jk-surface); border: 1px solid var(--jk-line); border-radius: var(--jk-r-l);
  padding: 16px 18px 14px;
}
.jk-chat-cap { margin: 0 0 12px; font-size: 13px; color: var(--jk-ink-3); text-align: center; }
.jk-chat { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.jk-b { max-width: 86%; padding: 10px 16px; font-size: 15.5px; line-height: 1.6; border-radius: var(--jk-r-l); }
.jk-b-you { align-self: flex-start; background: var(--jk-paper); border: 1px solid var(--jk-line); border-bottom-left-radius: 6px; }
.jk-b-us { align-self: flex-end; background: var(--jk-accent); color: #fff; border-bottom-right-radius: 6px; }
.jk-chat-foot { margin: 12px 0 0; font-size: 13px; color: var(--jk-ink-3); text-align: center; }

/* 首页下方区块 */
.jk-home-body, .jk-home-arts { max-width: 760px; margin: 0 auto; padding: 0 16px; }
.jk-home-body h2, .jk-sec-h { font-size: 24px; line-height: 1.4; margin: 40px 0 12px; line-break: strict; }
.jk-home-body p, .jk-home-body li { font-size: 16.5px; }
.jk-home-arts { padding-bottom: 56px; }
.jk-note { background: var(--jk-surface); border: 1px solid var(--jk-line); border-radius: var(--jk-r-s); padding: 12px 16px; }
.jk-more { margin: 8px 0 0; }
.jk-more a, .jk-next-ul a, .jk-404-ul a { display: inline-flex; align-items: center; min-height: 44px; }

/* 列表 */
.jk-postlist { list-style: none; margin: 0; padding: 0; }
.jk-post { background: var(--jk-surface); border: 1px solid var(--jk-line); border-radius: var(--jk-r-s); padding: 16px 18px; margin: 0 0 12px; }
.jk-post-a { font-size: 19px; font-weight: 700; line-height: 1.5; color: var(--jk-ink); text-decoration: none; display: inline-block; padding: 4px 0; }
.jk-post-a:hover { color: var(--jk-accent); text-decoration: underline; }
.jk-post-d { margin: 4px 0 6px; color: var(--jk-ink-2); }
.jk-post-m { margin: 0; font-size: 13.5px; color: var(--jk-ink-3); }
.jk-listhead { max-width: 760px; margin-bottom: 20px; }
.jk-intro p { margin: 0 0 8px; color: var(--jk-ink-2); font-size: 16.5px; }
.jk-count, .jk-syn { font-size: 14px; color: var(--jk-ink-3); margin: 6px 0 0; }
.jk-pager { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; margin-top: 20px; }
.jk-pager-a { display: inline-flex; align-items: center; min-height: 44px; }
.jk-termlist { padding-left: 1.2em; }
.jk-termn { color: var(--jk-ink-3); margin-left: .5em; font-size: 14px; }

/* 面包屑 */
.jk-crumb { font-size: 14px; color: var(--jk-ink-3); display: flex; flex-wrap: wrap; align-items: center; gap: 2px 6px; margin: 0 0 10px; }
.jk-crumb a { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; min-width: 44px; padding: 0 2px; }
.jk-crumb-sep { color: var(--jk-ink-3); }

/* 文章 */
.jk-art { max-width: var(--jk-w); margin: 0 auto; padding: 20px 16px 56px; }
.jk-art-top, .jk-cover, .jk-toc, .jk-art-body, .jk-faq, .jk-next { max-width: 760px; margin-left: auto; margin-right: auto; }
.jk-art-h1 { margin-top: 4px; }
.jk-dek { font-size: 18px; color: var(--jk-ink-2); margin: 0 0 10px; }
.jk-byline { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: 14px; color: var(--jk-ink-3); margin: 0 0 18px; }
.jk-byline-who { color: var(--jk-ink-2); }
.jk-cover { margin-top: 0; margin-bottom: 24px; }
.jk-cover img { display: block; width: 100%; border-radius: var(--jk-r-l); border: 1px solid var(--jk-line); }
.jk-shot-cap { font-size: 14px; color: var(--jk-ink-3); line-height: 1.6; margin-top: 8px; }

.jk-toc { background: var(--jk-surface); border: 1px solid var(--jk-line); border-radius: var(--jk-r-l); padding: 16px 20px 10px; margin-bottom: 28px; }
.jk-toc-h { margin: 0 0 6px; font-weight: 700; font-size: 15px; }
.jk-toc-ol { list-style: none; margin: 0; padding: 0; counter-reset: jkq; }
.jk-toc-ol li { counter-increment: jkq; border-top: 1px dashed var(--jk-line); }
.jk-toc-ol li:first-child { border-top: 0; }
.jk-toc-ol a { display: flex; gap: 10px; align-items: baseline; min-height: 44px; padding: 9px 0; color: var(--jk-ink); text-decoration: none; line-height: 1.5; }
.jk-toc-ol a::before { content: "问" counter(jkq); flex: none; font-size: 13px; color: var(--jk-accent); border: 1px solid var(--jk-accent); border-radius: 999px; padding: 0 8px; line-height: 1.7; }
.jk-toc-ol a:hover { color: var(--jk-accent); }

.jk-prose { font-size: 17px; line-height: 1.85; }
.jk-prose > * { max-width: 38em; }
.jk-prose p { margin: 0 0 1.05em; }
.jk-prose h2 {
  font-size: 25px; line-height: 1.45; margin: 2.2em 0 .8em; padding-top: .2em;
  line-break: strict; display: flex; gap: 12px; align-items: flex-start; scroll-margin-top: 16px;
}
.jk-art-body h2::before, .jk-doc .jk-prose h2::before {
  content: "问"; flex: none; width: 34px; height: 34px; margin-top: 2px; border-radius: 50%;
  background: var(--jk-accent); color: #fff; font-size: 16px; line-height: 34px; text-align: center; font-weight: 700;
}
.jk-doc .jk-prose h2::before { content: ""; width: 10px; height: 10px; margin-top: 14px; background: var(--jk-note); box-shadow: 0 0 0 2px var(--jk-accent); }
.jk-prose h3 { font-size: 19px; margin: 1.6em 0 .6em; }
.jk-prose ul, .jk-prose ol { padding-left: 1.4em; margin: 0 0 1.1em; }
.jk-prose li { margin: .3em 0; }
.jk-prose strong { color: var(--jk-ink); }
.jk-prose blockquote { margin: 0 0 1.2em; padding: 10px 16px; border-left: 4px solid var(--jk-note); background: var(--jk-surface); border-radius: 0 var(--jk-r-s) var(--jk-r-s) 0; }

.jk-shot { margin: 8px 0 26px; }
.jk-shot img { display: block; border-radius: var(--jk-r-s); border: 1px solid var(--jk-line); background: #1e2129; }
.jk-shot-tall img { width: 400px; }
.jk-shot-s img { width: 180px; }

.jk-kf { margin: 0 0 1.4em; border-radius: var(--jk-r-s); overflow: hidden; border: 1px solid var(--jk-line); background: var(--jk-surface); font-size: 15.5px; line-height: 1.7; }
.jk-kf p { margin: 0; padding: 10px 14px; }
.jk-kf b { display: inline-block; margin-right: 10px; font-size: 13px; padding: 0 10px; border-radius: 999px; line-height: 1.9; }
.jk-kf-yes b { background: var(--jk-accent); color: #fff; }
.jk-kf-no { border-top: 1px dashed var(--jk-line); }
.jk-kf-no b { background: var(--jk-note); color: var(--jk-ink); }

.jk-draft { margin: 0 0 1.4em; background: var(--jk-note-soft); border: 1px solid #f1d27a; border-radius: var(--jk-r-l) var(--jk-r-l) var(--jk-r-l) 6px; padding: 14px 18px; }
.jk-draft p { margin: 0; }
.jk-draft-h { font-size: 13px; color: #6d5a12; margin-bottom: 6px !important; }

.jk-tablebox { max-width: 100%; overflow-x: auto; margin: 0 0 1.4em; border: 1px solid var(--jk-line); border-radius: var(--jk-r-s); background: var(--jk-surface); }
.jk-prose > .jk-tablebox { max-width: 100%; }
.jk-table { border-collapse: collapse; width: 100%; font-size: 15px; line-height: 1.65; }
.jk-table th, .jk-table td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--jk-line); }
.jk-table th { background: var(--jk-paper); font-size: 14px; white-space: nowrap; }
.jk-table tr:last-child td { border-bottom: 0; }

/* FAQ */
.jk-faq { margin-top: 40px; padding-top: 8px; border-top: 2px solid var(--jk-ink); }
.jk-faq-h { font-size: 24px; margin: 18px 0 14px; line-break: strict; }
.jk-faq-i { background: var(--jk-surface); border: 1px solid var(--jk-line); border-radius: var(--jk-r-s); padding: 14px 18px; margin-bottom: 12px; }
.jk-faq-q { font-size: 17px; margin: 0 0 6px; line-height: 1.55; }
.jk-faq-a { margin: 0; font-size: 16px; color: var(--jk-ink-2); }

/* 文末去处 */
.jk-next { margin-top: 36px; }
.jk-tagbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 14px; }
.jk-tagbar-l { font-size: 14px; color: var(--jk-ink-3); margin-right: 4px; }
.jk-tag { font-size: 14px; padding: 4px 12px; border-radius: 999px; border: 1px solid var(--jk-line); background: var(--jk-surface); color: var(--jk-ink-2); text-decoration: none; }
a.jk-tag { color: var(--jk-accent); min-height: 44px; display: inline-flex; align-items: center; }
.jk-next-ul { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--jk-line); }
.jk-next-ul li { border-bottom: 1px solid var(--jk-line); }

/* 站务页、搜索、404 */
.jk-doc { max-width: 808px; }
.jk-doc-m { font-size: 14px; color: var(--jk-ink-3); margin: 0 0 20px; }
.jk-sform { margin: 8px 0 12px; }
.jk-slabel { display: block; font-size: 15px; margin-bottom: 6px; }
.jk-srow { display: flex; gap: 8px; }
.jk-sinput { flex: 1; min-width: 0; font: inherit; font-size: 16px; min-height: 48px; padding: 0 14px; border: 1px solid var(--jk-ink-3); border-radius: var(--jk-r-s); background: var(--jk-surface); color: var(--jk-ink); }
.jk-sbtn { font: inherit; min-height: 48px; padding: 0 20px; border: 0; border-radius: var(--jk-r-s); background: var(--jk-accent); color: #fff; cursor: pointer; }
.jk-sstat { color: var(--jk-ink-3); font-size: 14px; min-height: 1.5em; }
.jk-sres { list-style: none; margin: 0; padding: 0; }
.jk-sres li { background: var(--jk-surface); border: 1px solid var(--jk-line); border-radius: var(--jk-r-s); padding: 12px 16px; margin-bottom: 10px; }
.jk-sres a { font-weight: 700; display: inline-flex; min-height: 44px; align-items: center; }
.jk-sres p { margin: 0; color: var(--jk-ink-2); font-size: 15px; }
.jk-404-ul { padding-left: 1.2em; }

/* 页脚 */
.jk-foot { background: var(--jk-ink); color: #d9dcec; margin-top: 24px; }
.jk-foot-in { max-width: var(--jk-w); margin: 0 auto; padding: 32px 16px 28px; display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 8px 48px; }
.jk-foot .jk-brand { color: #fff; }
.jk-foot a { color: #fff; }
.jk-foot-say { font-size: 14px; line-height: 1.75; margin: 8px 0 0; max-width: 34em; }
.jk-foot-ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; }
.jk-foot-ul a, .jk-foot-rss a { display: inline-flex; align-items: center; min-height: 44px; min-width: 44px; font-size: 14.5px; }
.jk-foot-say a { display: inline-flex; align-items: center; min-height: 44px; vertical-align: middle; }
.jk-foot-rss { margin: 0; font-size: 14px; }
.jk-foot-c { margin: 0; font-size: 13px; color: #a7abc4; align-self: end; }

@media (max-width: 900px) {
  .jk-hero { grid-template-columns: minmax(0, 1fr); grid-template-areas: "head" "pin" "rec" "chat"; grid-template-rows: none; row-gap: 16px; padding-top: 22px; }
  .jk-foot-in { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 600px) {
  .jk-jump-h { margin-top: 14px; }
  body { font-size: 15.5px; }
  .jk-h1 { font-size: 26px; line-height: 1.35; margin-bottom: 8px; }
  .jk-hero { padding: 16px 16px 28px; row-gap: 12px; }
  .jk-lead { font-size: 15.5px; line-height: 1.7; }
  .jk-top-in { padding: 4px 12px; gap: 0 8px; }
  .jk-logo { width: 96px; }
  .jk-nav-a { padding: 0 10px; font-size: 15px; }
  .jk-pin { padding: 10px 14px 12px; }
  .jk-pin-tag { margin-bottom: 2px; }
  .jk-pin-code { font-size: 22px; padding: 0 10px; }
  .jk-pin-note { font-size: 14px; margin-top: 6px; }
  .jk-risk { font-size: 13px; margin-top: 6px; }
  .jk-rec-a { padding: 10px 14px; }
  .jk-rec-t { font-size: 16.5px; }
  .jk-rec-d { font-size: 14px; }
  .jk-rec-tag { margin-bottom: 4px; }
  .jk-prose { font-size: 16px; line-height: 1.8; }
  .jk-prose h2 { font-size: 21px; gap: 10px; }
  .jk-art-body h2::before { width: 28px; height: 28px; line-height: 28px; font-size: 14px; }
  .jk-shot-tall img { width: 100%; max-width: 300px; }
  .jk-table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); }
  .jk-table, .jk-table tbody, .jk-table tr, .jk-table td { display: block; width: 100%; }
  .jk-table tr { border-bottom: 1px solid var(--jk-line); padding: 6px 0; }
  .jk-table tr:last-child { border-bottom: 0; }
  .jk-table td { border-bottom: 0; padding: 4px 14px; }
  .jk-table td::before { content: attr(data-jk-h); display: block; font-size: 13px; color: var(--jk-accent); font-weight: 700; }
  .jk-foot-ul { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
  .jk-copy, .jk-reg, .jk-nav-a { transition: background-color .15s ease; }
}