:root{
    --pine:#1B7A5A; --pine-dark:#135c43; --pine-soft:#e8f3ee;
    --amber:#C4883A; --bg:#f6f8f7; --card:#ffffff;
    --text:#1f2d27; --muted:#6b7a73; --line:#e3e8e5;
    --p0:#d64545; --p1:#C4883A; --p2:#7a8a82;
  }
  *{box-sizing:border-box;}
  html,body{margin:0;height:100%;}
  body{
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
    color:var(--text); background:var(--bg); font-size:15px; line-height:1.6;
    display:flex; gap:14px; padding:14px; height:100vh; overflow:hidden;
  }

  /* ---------- 第1栏：一级+二级菜单 ---------- */
  #sidebar{
    width:280px; flex-shrink:0; background:var(--card); border:1px solid var(--line); border-radius:12px;
    display:flex; flex-direction:column; height:100%; overflow:hidden;
  }
  #brand{height:60px; flex-shrink:0; display:flex; flex-direction:column; justify-content:center; padding:0 18px; border-bottom:1px solid var(--line);}
  #brand h1{margin:0; font-size:16px; color:var(--pine);}
  #brand p{margin:4px 0 0; font-size:12px; color:var(--muted);}
  #nav{flex:1; overflow-y:auto; padding:8px 0 40px;}
  #rolebar{display:flex; flex-wrap:wrap; gap:4px; padding:8px 12px; border-bottom:1px solid var(--line); flex-shrink:0;}
  .rchip{font-size:12px; padding:3px 8px; border-radius:6px; cursor:pointer; color:var(--muted);}
  .rchip:hover{background:#f0f4f2;}
  .rchip.active{background:var(--pine-soft); color:var(--pine-dark); font-weight:600;}

  .sys{border-bottom:1px solid var(--line);}
  .sys-head{
    display:flex; align-items:center; justify-content:space-between;
    padding:12px 16px; cursor:pointer; user-select:none; font-weight:700; color:var(--pine-dark);
  }
  .sys-head:hover{background:var(--pine-soft);}
  .sys-head .count{font-size:11px; font-weight:600; color:var(--muted);}
  .sys-head .arrow{transition:transform .15s; color:var(--muted); margin-left:6px;}
  .sys.collapsed .arrow{transform:rotate(-90deg);}
  .sys.collapsed .sys-body{display:none;}

  .grp-label{padding:8px 16px 4px; font-size:11px; color:var(--muted); font-weight:700;}
  .item{
    display:flex; align-items:center; gap:8px; padding:7px 16px 7px 22px;
    cursor:pointer; font-size:14px; color:var(--text); border-left:3px solid transparent;
  }
  .item:hover{background:#f0f4f2;}
  .item.active{background:var(--pine-soft); border-left-color:var(--pine); color:var(--pine-dark); font-weight:600;}
  .item .iname{flex:1; min-width:0;}
  .item .badge{margin-left:auto; font-size:10px; padding:1px 6px; border-radius:10px; background:#eef1ef; color:var(--muted); white-space:nowrap; flex-shrink:0;}
  .item.done .badge{background:var(--pine); color:#fff;}
  .item .dot{width:6px;height:6px;border-radius:50%;background:#cdd5d1;flex-shrink:0;}
  .item.done .dot{background:var(--pine);}
  .item .chev{color:var(--pine); font-weight:700; opacity:0; margin-left:4px; transition:opacity .12s; flex-shrink:0;}
  .item.active .chev{opacity:1;}

  /* ---------- 第2栏：三级（用例清单） ---------- */
  /* 右侧大卡片：用例清单 + 内容合为一张卡，与左栏之间靠 body 的 gap 留白分隔 */
  #detail{
    flex:1; display:flex; background:var(--card); border:1px solid var(--line); border-radius:12px;
    height:100%; overflow:hidden;
  }
  #subnav{
    width:280px; flex-shrink:0; background:transparent; border-right:1px solid var(--line);
    display:flex; flex-direction:column; height:100%; overflow-y:auto;
  }
  .subnav-inner{width:100%;}
  .subnav-head{height:60px; flex-shrink:0; display:flex; align-items:center; padding:0 16px; border-bottom:1px solid var(--line); position:sticky; top:0; background:var(--card); z-index:1;}
  .sn-title{font-size:15px; font-weight:700; color:var(--text);}
  .sn-meta{font-size:12px; color:var(--muted); margin-top:2px;}
  .sn-list{padding:6px 0 40px;}
  .case-link{
    display:flex; align-items:flex-start; gap:8px; padding:9px 14px; cursor:pointer;
    border-left:3px solid transparent; font-size:13px;
  }
  .case-link:hover{background:#f3f6f4;}
  .case-link.active{background:var(--pine-soft); border-left-color:var(--pine);}
  .cl-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0;margin-top:7px;}
  .cl-dot.p0{background:var(--p0);} .cl-dot.p1{background:var(--p1);} .cl-dot.p2{background:var(--p2);}
  .cl-text{display:flex; flex-direction:column; flex:1; min-width:0; gap:1px;}
  .cl-scene{color:var(--text); font-size:14px; line-height:1.3; white-space:nowrap; overflow:hidden; text-overflow:ellipsis;}
  .sn-hint,.sn-empty{padding:24px 16px; color:var(--muted); font-size:13px; text-align:center;}

  /* ---------- 第3栏：内容（卡片详情） ---------- */
  #main{flex:1; display:flex; flex-direction:column; height:100%; overflow:hidden; background:transparent;}
  #dethead{height:60px; flex-shrink:0; display:flex; align-items:center; padding:0 36px; border-bottom:1px solid var(--line);}
  #content{flex:1; overflow-y:auto; max-width:840px; padding:20px 36px 80px;}

  .crumb{color:var(--muted); font-size:12px;}
  .copylink{cursor:pointer; color:var(--pine); font-weight:600;}
  .copylink:hover{text-decoration:underline;}
  .skip-banner{background:#fff4e5; border:1px solid #f0c27a; color:#8a5a00; border-radius:6px; padding:8px 12px; margin-bottom:12px; font-size:13px; font-weight:600;}
  .skiptag{color:#b06a00; font-weight:700;}
  .case-link.skip .cl-scene{color:var(--muted); text-decoration:line-through;}
  .case{
    padding:2px 0;
  }
  .case.p0{border-left-color:var(--p0);}
  .case.p1{border-left-color:var(--p1);}
  .case.p2{border-left-color:var(--p2);}
  .case-head{display:flex; align-items:baseline; gap:10px; flex-wrap:wrap; margin-bottom:6px;}
  .case-scene{font-weight:600; font-size:16px;}
  .pri{font-size:11px; font-weight:700; color:#fff; padding:1px 7px; border-radius:4px;}
  .pri.p0{background:var(--p0);} .pri.p1{background:var(--p1);} .pri.p2{background:var(--p2);}
  .case .role{font-size:12px; color:var(--muted);}
  .acct-row{margin:6px 0 2px;}
  .acct-badge{display:inline-flex; align-items:center; gap:5px; font-size:12.5px; font-weight:600; padding:4px 11px; border-radius:999px; border:1px solid var(--line); background:#f1f4f3; color:var(--text);}
  .acct-badge .ab-lead{font-weight:700;}
  .acct-badge.owner{background:var(--pine-soft); border-color:#bfe0d0; color:var(--pine-dark);}
  .acct-badge.staff{background:#eaf1f8; border-color:#c5d8ee; color:#2c5aa0;}
  .case-note{background:#eaf1f8; border:1px solid #c5d8ee; color:#244f86; border-radius:6px; padding:8px 12px; margin-top:12px; font-size:13px; line-height:1.55;}
  .case-note b{color:#1a3d6b;}
  .case .label{font-size:12px; color:var(--muted); font-weight:700; margin:12px 0 2px;}
  .case ol{margin:2px 0 0; padding-left:22px;}
  .case ol li{margin:1px 0;}
  .case .expect{background:var(--pine-soft); border-radius:6px; padding:8px 10px; margin-top:6px;}
  .empty{color:var(--muted); background:var(--card); border:1px dashed var(--line); border-radius:10px; padding:28px; text-align:center;}

  /* 首页说明 */
  .intro h2{color:var(--pine); font-size:17px; margin:22px 0 8px;}
  .intro ul{padding-left:20px;}
  .page-title{font-size:22px; margin:0 0 2px;}
  .page-sub{color:var(--muted); font-size:13px; margin-bottom:8px;}
  .legend{display:flex; gap:16px; flex-wrap:wrap; margin:10px 0;}
  .legend div{font-size:13px;}
  .legend b{display:inline-block; width:34px; text-align:center; color:#fff; border-radius:4px; margin-right:6px;}
  .bug-tpl{background:var(--card); border:1px solid var(--line); border-radius:10px; padding:14px 18px;}
  .bug-tpl table{width:100%; border-collapse:collapse; font-size:13px;}
  .bug-tpl td{border:1px solid var(--line); padding:6px 10px; vertical-align:top;}
  .bug-tpl td:first-child{width:110px; background:#f6f8f7; font-weight:600; color:var(--muted);}

/* ---------- split-pages ---------- */
#content{max-width:980px;}
.group-hero{margin-bottom:18px; padding-bottom:16px; border-bottom:1px solid var(--line);}
.group-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:10px; margin-top:10px;}
.group-card{display:flex; align-items:flex-start; gap:10px; padding:12px 14px; border:1px solid var(--line); border-radius:8px; text-decoration:none; color:var(--text); background:#fff;}
.group-card:hover{border-color:#b8d8ca; background:#f6fbf8;}
.group-card-no{width:26px; flex-shrink:0; color:var(--pine-dark); font-size:12px; font-weight:800; font-variant-numeric:tabular-nums;}
.group-card-text{display:flex; flex-direction:column; gap:2px; min-width:0;}
.group-card-name{font-weight:700;}
.group-card-meta{font-size:12px; color:var(--muted);}
.page-link{display:block; padding:8px 16px 8px 22px; border-left:3px solid transparent; color:var(--text); text-decoration:none; font-size:14px;}
.page-link:hover{background:#f0f4f2;}
.page-link.active{background:var(--pine-soft); border-left-color:var(--pine); color:var(--pine-dark); font-weight:700;}
.grp-label a{color:inherit; text-decoration:none;}
.item{text-decoration:none;}
.item-code{width:20px; flex-shrink:0; color:var(--muted); font-size:11px; font-variant-numeric:tabular-nums; text-align:right;}
.item.active .item-code{color:var(--pine-dark); font-weight:700;}
.item-section{padding:18px 0 8px; border-top:1px solid var(--line);}
.item-section:first-of-type{border-top:0;}
.item-section-head{display:flex; justify-content:space-between; gap:16px; align-items:flex-start; margin-bottom:12px;}
.item-section-head h2{margin:0; color:var(--pine); font-size:19px;}
.item-role{font-size:12px; color:var(--muted); background:#f1f4f3; border:1px solid var(--line); border-radius:999px; padding:4px 10px; white-space:nowrap;}
.case{scroll-margin-top:14px; margin:0 0 14px; padding:14px 16px; border:1px solid var(--line); border-left:4px solid var(--p2); border-radius:8px; background:#fff;}
.case ol.case-steps{display:flex; flex-direction:column; gap:10px; list-style:none; margin:2px 0 0; padding-left:0;}
.case ol.case-steps li{padding-left:0;}
.step-text{margin-bottom:6px;}
.step-shot-wrap{margin:6px 0 2px;}
.step-shot-label{font-size:11px; color:var(--muted); margin-bottom:4px; font-variant-numeric:tabular-nums;}
.step-shot{display:block; max-width:100%; border:1px solid #e2e2e2; border-radius:6px; box-shadow:0 1px 4px rgba(0,0,0,.08); cursor:zoom-in;}
.shot-zoom-layer{position:fixed; inset:0; z-index:1000; display:flex; align-items:center; justify-content:center; padding:24px; background:rgba(18,28,24,.72); cursor:zoom-out;}
.shot-zoom-layer[hidden]{display:none;}
.shot-zoom-layer img{display:block; max-width:min(96vw,1280px); max-height:94vh; border-radius:8px; background:#fff; box-shadow:0 18px 48px rgba(0,0,0,.28); cursor:zoom-out;}
.subnav-item{padding:10px 14px 4px; font-size:12px; font-weight:700; color:var(--pine-dark);}
.case-link{text-decoration:none; color:inherit;}
.cl-code{color:var(--muted); font-size:11px; line-height:1.2; font-variant-numeric:tabular-nums;}
.case-code{font-size:12px; font-weight:800; color:var(--pine-dark); background:var(--pine-soft); border-radius:5px; padding:1px 6px; font-variant-numeric:tabular-nums;}