/* ---------- Design tokens ---------- */
  :root{
    --bg:#F2F6F5;
    --surface:#FFFFFF;
    --surface-2:#EAF1EF;
    --ink:#182824;
    --muted:#5D716B;
    --line:#D3DEDB;
    --line-strong:#B9CBC6;
    --accent:#0E7466;
    --accent-hover:#0A5D52;
    --accent-soft:#DFF0EC;
    --danger:#C0442F;
    --danger-hover:#A33628;
    --danger-soft:#FAE9E5;
    --ok:#2E7D4F;
    --shadow:0 1px 3px rgba(20,40,36,.07),0 4px 14px rgba(20,40,36,.05);
    --shadow-lift:0 2px 6px rgba(20,40,36,.10),0 10px 28px rgba(20,40,36,.10);
  }
  @media (prefers-color-scheme: dark){
    :root:not([data-theme="light"]){
      --bg:#0F1715;
      --surface:#17211F;
      --surface-2:#1E2B28;
      --ink:#E3EDEA;
      --muted:#94A7A1;
      --line:#2C3B37;
      --line-strong:#3D514B;
      --accent:#4CC3B0;
      --accent-hover:#6AD6C5;
      --accent-soft:#143832;
      --danger:#E07862;
      --danger-hover:#EA9077;
      --danger-soft:#3A211C;
      --ok:#6FC591;
      --shadow:0 1px 3px rgba(0,0,0,.35),0 4px 14px rgba(0,0,0,.28);
      --shadow-lift:0 2px 6px rgba(0,0,0,.4),0 10px 28px rgba(0,0,0,.4);
    }
  }
  :root[data-theme="dark"]{
    --bg:#0F1715;
    --surface:#17211F;
    --surface-2:#1E2B28;
    --ink:#E3EDEA;
    --muted:#94A7A1;
    --line:#2C3B37;
    --line-strong:#3D514B;
    --accent:#4CC3B0;
    --accent-hover:#6AD6C5;
    --accent-soft:#143832;
    --danger:#E07862;
    --danger-hover:#EA9077;
    --danger-soft:#3A211C;
    --ok:#6FC591;
    --shadow:0 1px 3px rgba(0,0,0,.35),0 4px 14px rgba(0,0,0,.28);
    --shadow-lift:0 2px 6px rgba(0,0,0,.4),0 10px 28px rgba(0,0,0,.4);
  }

  /* ---------- Base ---------- */
  *{box-sizing:border-box;margin:0;padding:0;}
  html{-webkit-text-size-adjust:100%;}
  body{
    background:var(--bg);
    color:var(--ink);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
    font-size:15px;
    line-height:1.6;
    padding-bottom:96px; /* room for sticky bar */
  }
  .serif{font-family:"Songti SC","STSong","SimSun","Noto Serif CJK SC",serif;}
  .wrap{max-width:880px;margin:0 auto;padding:0 20px;}

  /* ---------- Header ---------- */
  .page-head{padding:44px 0 26px;}
  .eyebrow{
    font-size:12px;letter-spacing:.22em;color:var(--accent);
    font-weight:600;text-transform:uppercase;margin-bottom:10px;
  }
  h1{
    font-size:32px;font-weight:700;letter-spacing:.04em;
    text-wrap:balance;margin-bottom:10px;
  }
  .lede{color:var(--muted);max-width:640px;}
  .lede b{color:var(--ink);font-weight:600;}

  /* ---------- Meta card ---------- */
  .meta-card{
    background:var(--surface);border:1px solid var(--line);
    border-radius:12px;box-shadow:var(--shadow);
    padding:20px 22px;margin-top:22px;
  }
  .meta-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:18px;}
  .field{display:flex;flex-direction:column;gap:6px;min-width:0;}
  .field>label{font-size:13px;font-weight:600;color:var(--ink);}
  .req{color:var(--danger);font-style:normal;margin-left:2px;}
  .hint{font-size:12px;color:var(--muted);font-weight:400;}

  input[type="text"],input[type="password"],input[type="number"],input[type="month"],textarea,select{
    font:inherit;color:var(--ink);
    background:var(--surface);
    border:1px solid var(--line-strong);border-radius:8px;
    padding:9px 12px;width:100%;
    transition:border-color .15s ease, box-shadow .15s ease;
  }
  textarea{resize:vertical;min-height:64px;line-height:1.65;}
  input:focus,textarea:focus,select:focus{
    outline:none;border-color:var(--accent);
    box-shadow:0 0 0 3px var(--accent-soft);
  }
  .invalid{border-color:var(--danger)!important;box-shadow:0 0 0 3px var(--danger-soft)!important;}
  ::placeholder{color:var(--muted);opacity:.72;}

  /* ---------- Pills (radio group) ---------- */
  .pills{display:flex;flex-wrap:wrap;gap:8px;padding-top:2px;}
  .pill{position:relative;cursor:pointer;}
  .pill input{position:absolute;opacity:0;pointer-events:none;}
  .pill span{
    display:inline-block;padding:6px 14px;border-radius:999px;
    border:1px solid var(--line-strong);color:var(--muted);
    font-size:13px;font-weight:500;background:var(--surface);
    transition:all .15s ease;user-select:none;
  }
  .pill:hover span{border-color:var(--accent);color:var(--accent);}
  .pill input:checked+span{
    background:var(--accent);border-color:var(--accent);
    color:#fff;font-weight:600;
  }
  .pill input:focus-visible+span{box-shadow:0 0 0 3px var(--accent-soft);}

  /* ---------- Toolbar ---------- */
  .toolbar{
    display:flex;align-items:center;justify-content:space-between;
    gap:12px;margin:34px 0 14px;flex-wrap:wrap;
  }
  .toolbar h2{font-size:18px;font-weight:700;letter-spacing:.02em;}
  .count{color:var(--muted);font-size:13px;font-weight:400;margin-left:8px;}
  .toolbar-actions{display:flex;gap:8px;flex-wrap:wrap;}

  /* ---------- Buttons ---------- */
  .btn{
    font:inherit;font-size:14px;font-weight:600;cursor:pointer;
    border-radius:8px;padding:9px 16px;border:1px solid transparent;
    display:inline-flex;align-items:center;gap:6px;
    transition:background .15s ease,border-color .15s ease,transform .1s ease;
  }
  .btn:active{transform:translateY(1px);}
  .btn-primary{background:var(--accent);color:#fff;}
  .btn-primary:hover{background:var(--accent-hover);}
  .btn-outline{
    background:var(--surface);color:var(--ink);
    border-color:var(--line-strong);
  }
  .btn-outline:hover{border-color:var(--accent);color:var(--accent);}
  .btn-ghost-danger{
    background:transparent;color:var(--danger);
    border-color:transparent;padding:9px 10px;
  }
  .btn-ghost-danger:hover{background:var(--danger-soft);}
  .btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

  /* ---------- Project card ---------- */
  .card-list{display:flex;flex-direction:column;gap:20px;}
  .project-card{
    background:var(--surface);border:1px solid var(--line);
    border-radius:12px;box-shadow:var(--shadow);
    padding:22px;
    animation:cardIn .25s ease;
  }
  @media (prefers-reduced-motion: reduce){
    *{animation:none!important;transition:none!important;}
  }
  @keyframes cardIn{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:none;}}
  .card-head{
    display:flex;align-items:center;justify-content:space-between;
    margin-bottom:18px;
  }
  .badge{
    display:inline-flex;align-items:center;gap:8px;
    font-size:14px;font-weight:700;color:var(--accent);
    background:var(--accent-soft);border-radius:6px;
    padding:4px 12px;letter-spacing:.05em;
  }
  .btn-remove{
    font:inherit;font-size:13px;font-weight:500;cursor:pointer;
    color:var(--muted);background:transparent;border:none;
    border-radius:6px;padding:5px 10px;transition:all .15s ease;
  }
  .btn-remove:hover{color:var(--danger);background:var(--danger-soft);}
  .btn-remove:focus-visible{outline:2px solid var(--danger);outline-offset:1px;}

  .grid{display:grid;grid-template-columns:1fr 1fr;gap:16px 18px;}
  .grid .full{grid-column:1 / -1;}

  /* ---------- Example ---------- */
  details.example{
    margin-top:22px;background:var(--surface-2);
    border:1px solid var(--line);border-radius:12px;
    padding:14px 20px;
  }
  details.example summary{
    cursor:pointer;font-weight:600;font-size:14px;color:var(--accent);
    list-style:none;display:flex;align-items:center;gap:8px;
  }
  details.example summary::-webkit-details-marker{display:none;}
  details.example summary::before{content:"▸";transition:transform .15s ease;}
  details.example[open] summary::before{transform:rotate(90deg);}
  .example-body{
    margin-top:12px;border-top:1px dashed var(--line-strong);
    padding-top:14px;display:grid;grid-template-columns:92px 1fr;
    gap:8px 14px;font-size:13.5px;
  }
  .example-body dt{color:var(--muted);font-weight:600;text-align:right;}
  .example-body dd{color:var(--ink);white-space:pre-wrap;}

  /* ---------- Sticky action bar ---------- */
  .action-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:40;
    background:var(--surface);
    border-top:1px solid var(--line);
    box-shadow:0 -4px 16px rgba(20,40,36,.06);
  }
  .action-bar .wrap{
    display:flex;align-items:center;justify-content:space-between;
    gap:12px;padding-top:13px;padding-bottom:13px;flex-wrap:wrap;
  }
  .save-status{font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:6px;}
  .save-status .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);display:inline-block;}
  .bar-actions{display:flex;gap:10px;flex-wrap:wrap;}

  /* ---------- Toast ---------- */
  #toast{
    position:fixed;top:22px;left:50%;transform:translateX(-50%) translateY(-12px);
    z-index:100;opacity:0;pointer-events:none;
    background:var(--ink);color:var(--bg);
    font-size:14px;font-weight:500;
    padding:10px 20px;border-radius:8px;box-shadow:var(--shadow-lift);
    transition:opacity .2s ease,transform .2s ease;max-width:90vw;text-align:center;
  }
  #toast.show{opacity:1;transform:translateX(-50%) translateY(0);}
  #toast.err{background:var(--danger);color:#fff;}

  /* ---------- Modal ---------- */
  .overlay{
    position:fixed;inset:0;z-index:80;
    background:rgba(15,23,21,.55);
    display:none;align-items:center;justify-content:center;padding:20px;
  }
  .overlay.open{display:flex;}
  .modal{
    background:var(--surface);border:1px solid var(--line);
    border-radius:14px;box-shadow:var(--shadow-lift);
    width:min(680px,100%);max-height:84vh;
    display:flex;flex-direction:column;
    animation:cardIn .2s ease;
  }
  .modal-head{
    padding:18px 22px 12px;display:flex;align-items:center;justify-content:space-between;
  }
  .modal-head h3{font-size:17px;font-weight:700;}
  .modal-close{
    background:none;border:none;cursor:pointer;color:var(--muted);
    font-size:20px;line-height:1;padding:4px 8px;border-radius:6px;
  }
  .modal-close:hover{background:var(--surface-2);color:var(--ink);}
  .modal-tip{padding:0 22px 10px;font-size:13px;color:var(--muted);}
  .modal pre{
    margin:0 22px;background:var(--surface-2);border:1px solid var(--line);
    border-radius:8px;padding:14px 16px;overflow:auto;flex:1;
    font-family:"SF Mono",Menlo,Consolas,"Courier New",monospace;
    font-size:12.5px;line-height:1.6;color:var(--ink);
    tab-size:2;min-height:120px;
  }
  .modal-foot{
    padding:14px 22px 20px;display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap;
  }

  /* ---------- Responsive ---------- */
  @media (max-width:700px){
    .meta-grid{grid-template-columns:1fr;}
    .grid{grid-template-columns:1fr;}
    h1{font-size:26px;}
    .example-body{grid-template-columns:1fr;gap:2px 0;}
    .example-body dt{text-align:left;margin-top:8px;}
    .action-bar .wrap{justify-content:center;}
  }

  /* ================= 以下为在线版新增：应用层界面 ================= */

  /* ---------- 顶栏 ---------- */
  .topbar{
    position:sticky;top:0;z-index:60;
    background:var(--surface);
    border-bottom:1px solid var(--line);
    box-shadow:0 1px 2px rgba(20,40,36,.05);
  }
  .topbar .wrap{
    display:flex;align-items:center;justify-content:space-between;
    gap:14px;padding-top:10px;padding-bottom:10px;flex-wrap:wrap;
  }
  .brand{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:.02em;
    display:flex;align-items:center;gap:9px;}
  .brand .mark{width:9px;height:9px;border-radius:2px;background:var(--accent);display:inline-block;}
  .nav-tabs{display:flex;gap:4px;flex-wrap:wrap;}
  .nav-tab{
    font:inherit;font-size:14px;font-weight:500;cursor:pointer;
    color:var(--muted);background:transparent;border:none;
    border-radius:8px;padding:7px 14px;transition:all .15s ease;
  }
  .nav-tab:hover{color:var(--ink);background:var(--surface-2);}
  .nav-tab.on{background:var(--accent-soft);color:var(--accent);font-weight:600;}
  .user-chip{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
  .user-chip b{color:var(--ink);font-weight:600;}
  .link-btn{
    font:inherit;font-size:13px;cursor:pointer;color:var(--muted);
    background:transparent;border:none;border-radius:6px;padding:5px 9px;
    transition:all .15s ease;
  }
  .link-btn:hover{color:var(--danger);background:var(--danger-soft);}

  /* ---------- 报告类型与期次选择 ---------- */
  .type-tabs{display:flex;gap:8px;flex-wrap:wrap;}
  .type-tab{
    font:inherit;font-size:14px;font-weight:600;cursor:pointer;
    color:var(--muted);background:var(--surface);border:1px solid var(--line);
    border-radius:999px;padding:7px 18px;
    transition:all .15s ease;
  }
  .type-tab.on{background:var(--accent);border-color:var(--accent);color:#fff;}
  .type-tab[disabled]{cursor:not-allowed;opacity:.55;}
  .type-tab .soon{
    font-size:10.5px;font-weight:500;color:var(--muted);
    background:var(--surface-2);border-radius:999px;padding:1px 7px;margin-left:6px;
  }
  .period-row{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:18px;}
  .period-row select{width:auto;min-width:110px;}
  .month-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;margin-top:16px;}
  .month-chip{
    font:inherit;font-size:13.5px;font-weight:500;cursor:pointer;
    border:1px solid var(--line);background:var(--surface);color:var(--muted);
    border-radius:8px;padding:9px 6px;text-align:center;
    position:relative;transition:all .15s ease;
  }
  .month-chip:hover{border-color:var(--accent);color:var(--accent);}
  .month-chip.on{border-color:var(--accent);background:var(--accent-soft);color:var(--accent);font-weight:700;}
  .month-chip.is-draft{color:var(--pending,#9A6410);}
  .month-chip.is-sub{color:var(--ok);}
  .month-chip.is-sub.on{color:var(--ok);}
  .month-chip .cur{
    position:absolute;top:-7px;right:-5px;font-size:10px;font-weight:700;
    background:var(--accent);color:#fff;border-radius:999px;padding:1px 6px;
  }

  /* ---------- 状态横幅 / 占位 ---------- */
  .banner{
    margin-top:18px;border-radius:10px;padding:14px 18px;
    font-size:14px;border:1px solid;
    display:flex;align-items:flex-start;gap:10px;flex-wrap:wrap;
  }
  .banner b{font-weight:700;}
  .banner-info{background:var(--accent-soft);border-color:var(--accent);color:var(--ink);}
  .banner-lock{background:var(--surface-2);border-color:var(--line-strong);color:var(--muted);}
  .banner .banner-actions{margin-left:auto;display:flex;gap:10px;flex-wrap:wrap;}

  /* ---------- 管理端表格 ---------- */
  table.data{
    width:100%;border-collapse:collapse;margin-top:16px;font-size:14px;
    background:var(--surface);border:1px solid var(--line);border-radius:10px;
    overflow:hidden;
  }
  table.data th{
    text-align:left;font-size:12.5px;font-weight:600;color:var(--muted);
    background:var(--surface-2);padding:10px 14px;
    letter-spacing:.04em;border-bottom:1px solid var(--line);
  }
  table.data td{padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:middle;}
  table.data tr:last-child td{border-bottom:none;}
  table.data input{width:84px;padding:5px 8px;}
  table.data td .mini-btn + .mini-btn{margin-left:6px;}
  .mini-btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;}
  .tool-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);}
  .hist-acts{display:flex;gap:6px;margin-left:auto;}
  .chip-tag{display:inline-block;margin-left:6px;font-size:11.5px;font-weight:500;color:var(--muted);
            background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:0 8px;vertical-align:1px;}
  .st-ok{color:var(--ok);font-weight:600;}
  .st-miss{color:var(--danger);font-weight:600;}
  .st-mute{color:var(--muted);}
  .mini-btn{
    font:inherit;font-size:12.5px;cursor:pointer;border-radius:6px;
    border:1px solid var(--line-strong);background:var(--surface);color:var(--ink);
    padding:4px 10px;margin-right:6px;transition:all .15s ease;
  }
  .mini-btn:hover{border-color:var(--accent);color:var(--accent);}
  .mini-btn.danger:hover{border-color:var(--danger);color:var(--danger);}
  .mini-btn:disabled{opacity:.5;cursor:not-allowed;}

  /* ---------- 名单 / 添加表单 ---------- */
  .admin-panel{
    background:var(--surface);border:1px solid var(--line);border-radius:12px;
    box-shadow:var(--shadow);padding:20px 22px;margin-top:16px;
  }
  .admin-panel h3{font-size:15px;font-weight:700;margin-bottom:12px;}
  .inline-form{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end;}
  .inline-form .field{min-width:130px;}
  .pw-box{
    font-family:"SF Mono",Menlo,Consolas,monospace;font-size:16px;font-weight:600;
    letter-spacing:.08em;background:var(--surface-2);border:1px dashed var(--line-strong);
    border-radius:8px;padding:12px 16px;margin:10px 0;
    user-select:all;color:var(--ink);
  }
  .pw-tip{font-size:12.5px;color:var(--danger);font-weight:500;}


  /* ---------- 历史记录 ---------- */
  .hist-item{
    display:flex;align-items:center;gap:14px;flex-wrap:wrap;
    background:var(--surface);border:1px solid var(--line);border-radius:10px;
    padding:14px 18px;margin-top:10px;cursor:pointer;
    transition:border-color .15s ease;
  }
  .hist-item:hover{border-color:var(--accent);}
  .hist-item b{font-size:15px;color:var(--ink);}
  .hist-item .when{color:var(--muted);font-size:13px;}
  .hist-item .go{margin-left:auto;color:var(--accent);font-size:13px;font-weight:600;}
  .hist-item .hist-acts + .go{margin-left:4px;}
  .mini-btn.primary:hover{color:#fff;opacity:.88;}

  .section-gap{margin-top:26px;}
  @media (max-width:700px){
    .month-grid{grid-template-columns:repeat(4,1fr);}
    .nav-tabs{order:3;width:100%;}
    /* 窄屏下表格整体横向滚动，单元格不折行，避免姓名被挤成一字一行 */
    table.data{display:block;overflow-x:auto;}
    table.data th,table.data td{white-space:nowrap;padding:10px 12px;}
  }