:root {
      --bg: #ffffff;
      --bg-sidebar: #f7f5f0;
      --bg-soft: #faf8f4;
      --border: #e3ddd0;
      --border-strong: #d1c9b6;
      --text: #2b2620;
      --muted: #746c5e;
      --link: #9a2b1f;
      --link-hover: #c23c2c;
      --accent: #9a2b1f;
      --code-bg: #f2efe6;
      --table-head: #f1ece0;
      --gold: #9c7a45;
    }
    * { box-sizing: border-box; }
    body {
      margin: 0;
      background: var(--bg);
      color: var(--text);
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
      line-height: 1.75;
    }
    a { color: var(--link); text-decoration: none; }
    a:hover { color: var(--link-hover); text-decoration: underline; }

    .shell { display: flex; align-items: flex-start; max-width: 1180px; margin: 0 auto; }

    .sidebar {
      width: 252px; flex: none; position: sticky; top: 0; align-self: flex-start;
      max-height: 100vh; overflow-y: auto;
      background: var(--bg-sidebar); border-right: 1px solid var(--border);
      padding: 20px 16px 40px;
    }
    .sidebar-head { padding-bottom: 14px; margin-bottom: 6px; border-bottom: 1px solid var(--border); }
    .brand { font-size: 18px; font-weight: 700; color: var(--text); }
    .brand:hover { color: var(--accent); text-decoration: none; }
    .tagline { margin: 6px 0 0; font-size: 12px; color: var(--muted); line-height: 1.6; }
    .sidebar-nav details { margin-bottom: 2px; border-bottom: 1px dashed var(--border); }
    .sidebar-nav details:last-child { border-bottom: none; }
    .sidebar-nav summary {
      cursor: pointer; padding: 9px 4px; font-size: 13px; font-weight: 600; color: var(--text);
      list-style: none; display: flex; justify-content: space-between; align-items: center;
    }
    .sidebar-nav summary::-webkit-details-marker { display: none; }
    .sidebar-nav summary::before { content: "▸"; margin-right: 7px; color: var(--muted); font-size: 10px; }
    .sidebar-nav details[open] > summary::before { content: "▾"; }
    .sidebar-nav .count { font-weight: 400; color: var(--muted); font-size: 11px; }
    .sidebar-nav ul { list-style: none; margin: 0 0 8px; padding: 0 0 0 17px; }
    .sidebar-nav li { margin: 0; }
    .sidebar-nav a { display: block; padding: 5px 7px; font-size: 13px; color: var(--text); border-radius: 4px; }
    .sidebar-nav a:hover { background: #efe8d8; text-decoration: none; }
    .sidebar-nav a.active { background: var(--accent); color: #fff; }

    .content-col { flex: 1 1 auto; min-width: 0; }
    .topbar { padding: 16px 32px 0; }
    .breadcrumbs { color: var(--muted); font-size: 13px; }
    .breadcrumbs a { color: var(--muted); }
    .breadcrumbs a:hover { color: var(--accent); }
    .breadcrumbs .sep { margin: 0 6px; color: var(--border-strong); }

    .content { padding: 8px 32px 48px; max-width: 900px; }
    article h1 { margin: 8px 0 8px; font-size: 27px; border-bottom: 3px solid var(--accent); padding-bottom: 12px; }
    .badge {
      display: inline-block; padding: 2px 11px; border-radius: 999px; font-size: 12px;
      margin-left: 8px; vertical-align: middle; font-weight: 500;
    }
    .badge-high { background: #eaf3ea; color: #2e7d4f; border: 1px solid #bfe0c8; }
    .badge-geo { background: #eaf1f6; color: #2f6f8f; border: 1px solid #c3dbe6; }
    .meta { color: var(--muted); font-size: 13px; margin: 6px 0 16px; }
    .lead { font-size: 15px; color: #464035; margin: 0 0 18px; }
    /* 问答页的答案段：第一屏就是结论，用左侧朱线和略大的字把它和后文的展开区分开。 */
    .lead.answer { font-size: 16px; line-height: 1.85; color: #2f2a22; background: #fbf7ee;
      border-left: 3px solid #9c3b2e; border-radius: 0 4px 4px 0; padding: 12px 16px; margin: 0 0 22px; }
    .lead.answer p { margin: 0; }

    section { margin-top: 28px; }
    section h2 { font-size: 18px; margin: 0 0 10px; padding-bottom: 6px; border-bottom: 1px solid var(--border); }
    .guide { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 8px; padding: 14px 18px; }

    table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; }
    th, td { border: 1px solid var(--border-strong); padding: 8px 10px; text-align: left; vertical-align: top; }
    th { background: var(--table-head); font-weight: 600; }
    tr:nth-child(even) td { background: #fdfcf9; }

    code { background: var(--code-bg); border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; font-size: 0.92em; }
    pre { background: var(--code-bg); border: 1px solid var(--border); padding: 12px; overflow: auto; border-radius: 6px; }
    pre code { border: none; padding: 0; background: none; }
    blockquote {
      margin: 14px 0; padding: 8px 16px; border-left: 4px solid var(--accent);
      background: var(--bg-soft); color: var(--muted);
    }
    ul, ol { padding-left: 1.4em; }
    hr { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

    .card-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
    .card-grid li {
      border: 1px solid var(--border); background: var(--bg-soft); border-radius: 8px; padding: 10px 12px;
    }
    .card-grid a { font-weight: 600; font-size: 14px; }
    .card-grid p { margin: 4px 0 0; font-size: 12.5px; color: var(--muted); line-height: 1.5; }

    /* 游戏内百科原文（source_format=html 的 44 篇）复用的 wk-* 类：贴本站浅色调色板的静态版，
       去掉 --ui-px 缩放与仅在活跃游戏内才有意义的交互态（导航/搜索/弹窗遮罩不在导出内容里，不搬）。 */
    .wk-kicker { font-size: 11px; letter-spacing: .12em; color: var(--gold); margin-bottom: 6px; }
    .wk-h1 { margin: 18px 0 4px; font-size: 20px; font-weight: 700; color: var(--text); }
    .wk-rule { height: 2px; width: 56px; background: var(--accent); margin: 12px 0 18px; border-radius: 1px; }
    .wk-lead { font-size: 15px; line-height: 1.85; color: var(--text); margin: 0 0 18px; }
    .wk-sect { font-size: 13px; font-weight: 700; letter-spacing: .08em; color: var(--accent); margin: 22px 0 10px; padding-bottom: 5px; border-bottom: 1px dashed var(--border); }
    .wk-p { font-size: 14px; line-height: 1.85; margin: 0 0 12px; color: var(--text); }
    .wk-p b { color: var(--text); }

    .wk-goto { display: flex; align-items: center; gap: 12px; background: var(--bg-soft); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 6px; padding: 12px 16px; margin: 8px 0; }
    .wk-goto .wk-gico { width: 34px; height: 34px; flex-shrink: 0; border-radius: 6px; background: #f1e3de; border: 1px solid #e0c3ba; display: flex; align-items: center; justify-content: center; font-size: 16px; color: var(--accent); }
    .wk-goto .wk-gtxt { font-size: 13.5px; line-height: 1.6; color: var(--text); }
    .wk-goto .wk-gtxt b { color: var(--accent); }

    .wk-tour-launch { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 12px; margin: 10px 0; }
    .wk-tour-start { font-size: 13.5px; font-weight: 700; padding: 8px 16px; border-radius: 4px; color: #fff; background: var(--accent); border: 1px solid var(--accent); opacity: .55; pointer-events: none; }
    .wk-tour-lock-note { display: inline; font-size: 12px; color: var(--muted); }
    .wk-tour-done { font-size: 13px; color: #2f6a4f; font-weight: 700; }

    .wk-where { display: inline-block; font-size: 12px; font-weight: 700; background: #f1e3de; color: var(--accent); padding: 1px 8px; border-radius: 4px; margin: 0 2px; }

    .wk-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; margin: 0 0 18px; }
    .wk-stat { background: var(--bg-soft); border: 1px solid var(--border); border-radius: 6px; padding: 9px 11px; }
    .wk-stat .wk-k { font-size: 11px; color: var(--gold); letter-spacing: .05em; margin-bottom: 3px; }
    .wk-stat .wk-v { font-size: 14.5px; font-weight: 700; color: var(--text); }
    .wk-stat .wk-v small { font-size: 11px; font-weight: 400; color: var(--muted); margin-left: 3px; }

    .wk-pills { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0 16px; }
    .wk-pill { font-size: 11.5px; padding: 3px 10px; border-radius: 999px; background: var(--bg-soft); border: 1px solid var(--border); color: var(--muted); }
    .wk-pill.accent { background: #f1e3de; border-color: #e0c3ba; color: var(--accent); }

    .wk-table { width: 100%; border-collapse: collapse; margin: 6px 0 20px; font-size: 13px; }
    .wk-table th { text-align: left; padding: 7px 11px; background: var(--table-head); color: var(--text); font-weight: 700; border-bottom: 1.5px solid var(--border-strong); }
    .wk-table td { padding: 7px 11px; border-bottom: 1px solid var(--border); color: var(--text); }
    .wk-table tr:hover td { background: var(--bg-soft); }

    .wk-formula { margin: 8px 0; padding: 9px 13px; background: var(--code-bg); border: 1px solid var(--border); border-radius: 5px; color: var(--muted); font-family: "Courier New", monospace; font-size: 13px; line-height: 1.7; overflow-wrap: anywhere; }
    .wk-formula-main { border-left: 3px solid var(--accent); color: var(--text); font-weight: 700; background: #f3ece2; }
    .wk-example { margin: 12px 0 18px; padding: 12px 15px; border-radius: 6px; border: 1px dashed var(--border-strong); background: var(--bg-soft); color: var(--muted); font-size: 13.5px; line-height: 1.8; }
    .wk-example b { color: var(--accent); }

    .wk-tier { display: flex; margin: 6px 0 16px; border-radius: 5px; overflow: hidden; border: 1px solid var(--border); }
    .wk-tier div { flex: 1; padding: 7px 5px; text-align: center; font-size: 11px; color: #fff; font-weight: 600; }
    .wk-t1 { background: #7a2a1e; } .wk-t2 { background: #a85a2a; } .wk-t3 { background: #b89030; } .wk-t4 { background: #5a7a3a; } .wk-t5 { background: #3a6a4a; }

    .wk-tut-intro { background: var(--bg-soft); border: 1px solid var(--border); border-left: 3px solid var(--accent); border-radius: 6px; padding: 12px 16px; margin: 0 0 20px; font-size: 14px; line-height: 1.85; color: var(--muted); }
    .wk-tut-intro b { color: var(--accent); }
    .wk-step { display: flex; gap: 12px; margin: 0 0 16px; }
    .wk-num { flex-shrink: 0; width: 25px; height: 25px; border-radius: 50%; background: var(--accent); color: #fff; font-size: 13px; font-weight: 700; display: flex; align-items: center; justify-content: center; }
    .wk-sbody { flex: 1; min-width: 0; }
    .wk-sbody .wk-st { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 3px; }
    .wk-sbody .wk-sd { font-size: 13.5px; line-height: 1.8; color: var(--muted); }
    .wk-sbody .wk-sd b { color: var(--text); }
    .wk-say { display: inline-block; margin: 5px 0 2px; background: var(--bg-soft); border: 1px dashed var(--border); border-radius: 5px; padding: 4px 10px; font-size: 13px; color: var(--accent); }
    .wk-say::before { content: "「"; }
    .wk-say::after { content: "」"; }
    .wk-tip { font-size: 12.5px; color: var(--gold); line-height: 1.7; margin: 12px 0 0; padding: 9px 13px; background: var(--bg-soft); border-radius: 5px; }
    .wk-tip b { color: var(--accent); }

    .site-footer {
      margin: 40px 32px 0; padding: 16px 0 32px; border-top: 1px solid var(--border);
      color: var(--muted); font-size: 12px; text-align: center; line-height: 2;
    }
    .site-footer a { color: var(--muted); }
    .site-footer a:hover { color: var(--accent); }

    @media (max-width: 860px) {
      .shell { flex-direction: column; }
      .sidebar { position: static; width: 100%; max-height: none; border-right: none; border-bottom: 1px solid var(--border); }
      .content, .topbar { padding-left: 18px; padding-right: 18px; }
      .site-footer { margin-left: 18px; margin-right: 18px; }
      .card-grid { grid-template-columns: 1fr; }
    }

    .home-hero { padding: 26px 0 6px; }
    .home-hero h1 { margin: 0 0 10px; font-size: 28px; border-bottom: 3px solid var(--accent); padding-bottom: 12px; }
    .home-hero p { color: #464035; font-size: 15px; margin: 0; }
    .home-hero .home-intro { margin: 14px 0 0; line-height: 1.85; }
    .home-hero .home-intro-links { margin: 8px 0 0; font-size: 14px; }

    /* 折叠分组的入口行：不展开条目，只给一条通往首页该分组的链接。 */
    .sidebar-nav .group-link { display: block; padding: 5px 8px; color: var(--muted); font-size: 13px; }
    .sidebar-nav .group-link:hover { color: var(--link-hover); }