/* 知库 · 飞书文档风格 */
:root{
  --ink:#1f2329;
  --ink-2:#373c43;
  --sub:#646a73;
  --muted:#8f959e;
  --line:#e5e6eb;
  --line-2:#eff0f1;
  --rail:#f5f6f7;
  --hover:#e9ebef;
  --brand:#3370ff;
  --brand-bg:#e8efff;
  --white:#fff;
  --sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Microsoft YaHei UI","Microsoft YaHei",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;font-family:var(--sans);color:var(--ink);background:var(--white);
  font-size:14px;-webkit-font-smoothing:antialiased;
}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}

.mac{display:grid;grid-template-columns:236px 208px minmax(0,1fr);grid-template-rows:minmax(0,1fr);height:100vh;overflow:hidden}
.mac.no-outline{grid-template-columns:236px 0 minmax(0,1fr)}
.mac.no-outline .outline{display:block;padding:0;border:0;overflow:hidden}

/* ---------- 左侧栏 ---------- */
.rail{background:var(--rail);border-right:1px solid var(--line-2);display:flex;flex-direction:column;min-height:0;overflow:hidden}
.rail-top{padding:12px 10px 6px}
.ws{display:flex;align-items:center;gap:9px;padding:2px 4px 12px}
.ws-logo{
  width:24px;height:24px;border-radius:6px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;
}
.ws-name{font-size:14.5px;font-weight:600;letter-spacing:.02em}

.search{
  display:flex;align-items:center;gap:7px;background:var(--white);
  border:1px solid var(--line);border-radius:6px;padding:5px 8px;color:var(--muted);
}
.search input{border:0;outline:0;background:transparent;flex:1;min-width:0;font-size:13px;color:var(--ink)}
.search input::placeholder{color:var(--muted)}
.search kbd{
  font-family:var(--sans);font-size:11px;color:var(--muted);
  border:1px solid var(--line);border-radius:4px;padding:0 4px;line-height:16px;white-space:nowrap;
}
.search:focus-within{border-color:var(--brand)}

.rail-nav{display:flex;flex-direction:column;gap:1px;padding:8px 8px 6px}
.rail-nav a{
  display:flex;align-items:center;gap:9px;padding:7px 8px;border-radius:6px;
  font-size:13.5px;color:var(--ink);text-decoration:none;
}
.rail-nav a{position:relative}
.rail-nav a::before{
  content:"";width:16px;height:16px;flex:none;background:var(--muted);opacity:.75;
  -webkit-mask:var(--ic) center/16px 16px no-repeat;mask:var(--ic) center/16px 16px no-repeat;
}
.rail-nav a[data-tab="home"],.rail-nav a[href="index.html"]{--ic:url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%221.9%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22M4%2010.5%2012%204l8%206.5V20a1%201%200%200%201-1%201h-4v-6H9v6H5a1%201%200%200%201-1-1z%22%2F%3E%3C%2Fsvg%3E")}
.rail-nav a[data-tab="docs"]{--ic:url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%221.9%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Cpath%20d%3D%22M5%205a2%202%200%200%201%202-2h11v16H7a2%202%200%200%200-2%202z%22%2F%3E%3Cpath%20d%3D%22M5%2019V5%22%2F%3E%3Cpath%20d%3D%22M9%208h6M9%2012h6%22%2F%3E%3C%2Fsvg%3E")}
.rail-nav a[data-tab="apps"]{--ic:url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%221.9%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Crect%20x%3D%224%22%20y%3D%224%22%20width%3D%227%22%20height%3D%227%22%20rx%3D%221.5%22%2F%3E%3Crect%20x%3D%2213%22%20y%3D%224%22%20width%3D%227%22%20height%3D%227%22%20rx%3D%221.5%22%2F%3E%3Crect%20x%3D%224%22%20y%3D%2213%22%20width%3D%227%22%20height%3D%227%22%20rx%3D%221.5%22%2F%3E%3Crect%20x%3D%2213%22%20y%3D%2213%22%20width%3D%227%22%20height%3D%227%22%20rx%3D%221.5%22%2F%3E%3C%2Fsvg%3E")}
.rail-nav a[data-tab="account"]{--ic:url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20stroke%3D%22black%22%20stroke-width%3D%221.9%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%3E%3Ccircle%20cx%3D%2212%22%20cy%3D%228%22%20r%3D%223.6%22%2F%3E%3Cpath%20d%3D%22M5%2020c.8-3.6%203.6-5.6%207-5.6s6.2%202%207%205.6%22%2F%3E%3C%2Fsvg%3E")}
.rail-nav a:hover{background:var(--hover)}
.rail-nav a.on{background:#e1e5ea;font-weight:600}
.rail-nav a.on::before{background:var(--brand);opacity:1}

.tree-wrap{flex:1;min-height:0;display:flex;flex-direction:column;border-top:1px solid var(--line-2);margin-top:6px;padding-top:8px}
.tree-head{display:flex;align-items:center;justify-content:space-between;padding:0 14px 4px}
.tree-head h6{margin:0;font-size:11.5px;font-weight:500;color:var(--muted);letter-spacing:.04em}
.mini{
  width:20px;height:20px;border:0;background:transparent;color:var(--sub);
  border-radius:4px;font-size:14px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.mini:hover{background:var(--hover)}

.tree{overflow:auto;padding:0 8px 16px;flex:1;min-height:0}
.grp{margin-bottom:2px}
.grp-h{
  display:flex;align-items:center;gap:6px;padding:5px 6px;border-radius:5px;
  font-size:12.5px;color:var(--sub);cursor:pointer;user-select:none;
}
.grp-h:hover{background:var(--hover)}
.grp-h .arw{width:10px;font-size:9px;color:var(--muted);transition:transform .15s}
.grp.closed .arw{transform:rotate(-90deg)}
.grp.closed .grp-b{display:none}
.grp-h .cnt{margin-left:auto;color:var(--muted);font-size:11px}
.item{
  display:flex;align-items:center;gap:6px;padding:5px 6px 5px 20px;border-radius:5px;
  font-size:13px;color:var(--ink);cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.item:hover{background:var(--hover)}
.item.on{background:var(--brand-bg);color:var(--brand);font-weight:500}
.item .dot{width:5px;height:5px;border-radius:50%;background:var(--muted);opacity:.5;flex:none}
.item .t{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.item.on .dot{background:var(--brand);opacity:1}
.empty-tip{padding:12px;color:var(--muted);font-size:12.5px;line-height:1.7}

.rail-foot{
  display:flex;align-items:center;gap:8px;padding:8px 12px;border-top:1px solid var(--line-2);
}
.avatar{
  width:24px;height:24px;border-radius:50%;background:#d9e2f2;color:#3b5b8c;
  display:flex;align-items:center;justify-content:center;font-size:12px;flex:none;
}
.who{font-size:13px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.link{border:0;background:transparent;color:var(--sub);font-size:12.5px;padding:2px 4px;border-radius:4px}
.link:hover{background:var(--hover);color:var(--ink)}

/* ---------- 中间大纲 ---------- */
.outline{border-right:1px solid var(--line-2);padding:18px 10px;overflow:auto;position:relative}
.outline-head{display:flex;justify-content:flex-end;margin-bottom:6px}
.outline nav{display:flex;flex-direction:column}
.outline a{
  display:block;padding:5px 8px;border-radius:5px;font-size:12.5px;line-height:1.5;color:var(--sub);
  text-decoration:none;border-left:2px solid transparent;
}
.outline a:hover{background:var(--hover);color:var(--ink)}
.outline a.lv3{padding-left:20px;font-size:12px}
.outline a.on{color:var(--brand);border-left-color:var(--brand);background:var(--brand-bg)}
.outline .toc-title{padding:0 8px 8px;font-size:11.5px;color:var(--muted);letter-spacing:.04em}

/* ---------- 正文 ---------- */
.main{display:flex;flex-direction:column;min-width:0;min-height:0;position:relative;overflow:hidden}
.docbar{
  height:52px;display:flex;align-items:center;justify-content:flex-end;gap:8px;
  padding:0 20px;border-bottom:1px solid transparent;flex:none;
}
.docbar .spacer{flex:1}
.docbar .path{font-size:12.5px;color:var(--muted);flex:1;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}

.btn{
  border:1px solid var(--line);background:var(--white);color:var(--ink);
  padding:5px 12px;border-radius:6px;font-size:13px;line-height:1.6;
}
.btn:hover{background:#f7f8fa}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:#2b62e6}
.btn-ghost{border-color:transparent;background:transparent;color:var(--sub)}
.btn-ghost:hover{background:var(--hover);color:var(--ink)}

.scroll{overflow:auto;flex:1;min-height:0;scroll-behavior:smooth}
.doc{max-width:780px;margin:0 auto;padding:16px 64px 160px}
.doc-title{font-size:30px;line-height:1.35;font-weight:600;margin:0 0 18px;letter-spacing:.01em;color:var(--ink)}
.doc-meta{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:12.5px;margin-bottom:26px}
.doc-meta .avatar{width:20px;height:20px;font-size:11px}
.doc-meta .sep{color:#d0d3d6}

.doc-body{font-size:15px;line-height:1.9;color:var(--ink-2)}
.doc-body p{margin:0 0 14px}
.doc-body h2{font-size:21px;font-weight:600;margin:34px 0 12px;color:var(--ink);line-height:1.45}
.doc-body h3{font-size:17px;font-weight:600;margin:26px 0 10px;color:var(--ink)}
.doc-body h4{font-size:15.5px;font-weight:600;margin:20px 0 8px;color:var(--ink)}
.doc-body ul,.doc-body ol{margin:0 0 14px;padding-left:22px}
.doc-body li{margin:4px 0}
.doc-body blockquote,.doc-body .callout{
  margin:16px 0;padding:10px 16px;border-left:3px solid var(--line);background:#fafbfc;color:var(--sub);
  font-size:13.5px;line-height:1.8;border-radius:0 4px 4px 0;
}
.doc-body code{
  font-family:var(--mono);font-size:12.5px;background:#f2f3f5;border-radius:4px;padding:1px 5px;color:#c7254e;
}
.doc-body pre{background:#f7f8fa;border:1px solid var(--line-2);border-radius:6px;padding:14px 16px;overflow:auto;margin:0 0 16px}
.doc-body pre code{background:none;padding:0;color:var(--ink-2);font-size:12.5px;line-height:1.7}
.doc-body hr{border:0;border-top:1px solid var(--line);margin:28px 0}
.doc-body table{border-collapse:collapse;width:100%;margin:0 0 18px;font-size:13.5px}
.doc-body th,.doc-body td{border:1px solid var(--line);padding:8px 12px;text-align:left;vertical-align:top}
.doc-body th{background:#f7f8fa;font-weight:600;color:var(--ink)}
.doc-body a{color:var(--brand);text-decoration:none}
.doc-body a:hover{text-decoration:underline}
.doc-body strong{color:var(--ink);font-weight:600}

.doc-empty{color:var(--muted);padding:56px 24px;text-align:center;font-size:14px;line-height:2.1;border:1px dashed var(--line);border-radius:10px;margin-top:10px;background:#fcfcfd}

/* ---------- 程序合集 / 账户 ---------- */
.doc.wide{max-width:980px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin-top:8px}
.card{
  border:1px solid var(--line);border-radius:10px;padding:16px;background:var(--white);
  display:flex;gap:12px;align-items:flex-start;position:relative;cursor:pointer;transition:.15s;
}
.card:hover{border-color:#c9cdd4;box-shadow:0 2px 10px rgba(31,35,41,.06)}
.card .ico{
  width:34px;height:34px;border-radius:8px;background:#f2f3f5;display:flex;align-items:center;
  justify-content:center;font-size:17px;flex:none;
}
.card h4{margin:0 0 4px;font-size:14px;font-weight:600;color:var(--ink)}
.card p{margin:0;font-size:12.5px;color:var(--sub);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .del{
  position:absolute;top:8px;right:8px;border:0;background:transparent;color:var(--muted);
  opacity:0;border-radius:4px;padding:2px 5px;font-size:12px;
}
.card:hover .del{opacity:1}
.card .del:hover{background:#fde8e8;color:#d93026}

.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:12.5px;color:var(--sub);margin-bottom:6px}
.input{
  width:100%;border:1px solid var(--line);border-radius:6px;padding:8px 10px;font-size:13.5px;
  outline:0;color:var(--ink);background:var(--white);
}
.input:focus{border-color:var(--brand)}
textarea.input{resize:vertical;line-height:1.7}

/* ---------- 弹层 ---------- */
.mask{
  position:fixed;inset:0;background:rgba(31,35,41,.42);backdrop-filter:blur(1px);
  display:flex;align-items:center;justify-content:center;z-index:50;padding:24px;
}
.modal{
  background:var(--white);border-radius:10px;box-shadow:0 12px 40px rgba(0,0,0,.18);
  width:100%;max-width:560px;max-height:calc(100vh - 48px);display:flex;flex-direction:column;
}
.modal.wide{max-width:1040px}
.modal-h{padding:18px 22px 8px;font-size:16px;font-weight:600}
.modal-b{padding:8px 22px 4px;overflow:auto}
.modal-f{padding:14px 22px 18px;display:flex;justify-content:flex-end;gap:8px}
.m-sub{margin:0 0 16px;font-size:12.5px;color:var(--muted);line-height:1.7}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}

.split{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:8px;overflow:hidden;height:58vh}
.split textarea{
  border:0;outline:0;resize:none;padding:16px;font-family:var(--mono);font-size:13px;line-height:1.8;
  color:var(--ink);border-right:1px solid var(--line);background:#fcfcfd;
}
.split .preview{padding:16px 20px;overflow:auto;background:var(--white)}
.split .preview .doc-body{font-size:14px}
.split .preview .doc-body h2{font-size:18px;margin:18px 0 8px}
.split .preview .doc-body h3{font-size:15px;margin:14px 0 6px}

.toast{
  position:fixed;left:50%;bottom:32px;transform:translateX(-50%);
  background:#1f2329;color:#fff;font-size:13px;padding:9px 16px;border-radius:6px;z-index:99;
  opacity:0;transition:opacity .2s;
}
.toast.on{opacity:1}

@media (max-width:1180px){
  .mac{grid-template-columns:220px 0 minmax(0,1fr)}
  .outline{display:block;padding:0;border:0;overflow:hidden}
  .doc{padding:16px 40px 120px}
}

/* ---- 成员列表（管理员） ---- */
.members-wrap{margin-top:40px}
.members-head{display:flex;align-items:baseline;gap:10px;font-size:15px;font-weight:600;color:var(--ink);
  padding-bottom:10px;border-bottom:1px solid var(--line);margin-bottom:2px}
.members-head span{font-weight:400;font-size:12.5px;color:var(--muted)}
.members{font-size:13.5px;color:var(--ink)}
table.mt{width:100%;border-collapse:collapse}
table.mt th{text-align:left;font-weight:500;color:var(--muted);font-size:12.5px;padding:9px 10px;
  border-bottom:1px solid var(--line);background:#fafbfc}
table.mt td{padding:9px 10px;border-bottom:1px solid var(--line-2)}
table.mt tr:hover td{background:#fafbfc}
table.mt .num{font-variant-numeric:tabular-nums;color:var(--sub)}
table.mt .dim{color:var(--muted);font-size:12.5px}
.badge-admin{display:inline-block;font-size:11px;line-height:1;padding:3px 6px;border-radius:4px;
  background:#e8f0ff;color:var(--brand);vertical-align:1px}
.btn-mini{border:0;background:transparent;color:var(--muted);font-size:12.5px;cursor:pointer;padding:3px 6px;border-radius:4px}
.btn-mini:hover{background:#fdecea;color:#c0392b}


/* ---- 窄屏：侧栏抽屉化 ---- */
.rail-toggle{display:none}

@media (max-width:980px){
  .rail-toggle{
    display:grid;place-items:center;
    position:fixed;top:9px;left:10px;z-index:70;
    width:34px;height:34px;border-radius:9px;
    border:1px solid var(--line);background:rgba(255,255,255,.94);
    color:var(--ink);font-size:15px;line-height:1;cursor:pointer;
    box-shadow:0 2px 10px -6px rgba(15,18,23,.35);
  }
  .mac,.mac.no-outline{grid-template-columns:minmax(0,1fr);grid-template-rows:minmax(0,1fr)}
  .rail{
    position:fixed;top:0;left:0;bottom:0;width:252px;z-index:65;
    transform:translateX(-103%);
    transition:transform .24s cubic-bezier(.2,.7,.2,1),box-shadow .24s;
    border-right:1px solid var(--line);
  }
  .mac.nav-open .rail{transform:none;box-shadow:24px 0 60px -28px rgba(15,18,23,.45)}
  .outline,.mac.no-outline .outline{display:none}
  .docbar{padding-left:54px;flex-wrap:wrap;height:auto;min-height:52px;padding-top:8px;padding-bottom:8px}
  .doc{max-width:100%;padding:16px 20px 120px}
  .doc-title{font-size:24px}
  .main{width:100%}
}

@media (max-width:560px){
  .doc{padding:10px 16px 100px}
  .doc-title{font-size:21px}
  .doc-meta{font-size:12px}
  .members-wrap{margin-top:28px}
  table.mt th:nth-child(2),table.mt td:nth-child(2),
  table.mt th:nth-child(5),table.mt td:nth-child(5){display:none}
}