:root{
    --bg:#f6f7f9;
    --surface:#ffffff;
    --surface-2:#fafbfc;
    --border:#e7e9ee;
    --border-strong:#d9dce3;
    --text:#3a3f47;
    --text-strong:#1f2328;
    --muted:#7c838f;
    --accent:#2f6bd8;
    --accent-hover:#2559bb;
    --accent-soft:#eef3fd;
    --green:#1f7a4d;
    --green-soft:#eefaf3;
    --amber:#8a5a12;
    --amber-soft:#fdf5e6;
    --danger:#c0402c;
    --danger-soft:#fdeeeb;
    --radius:10px;
    --radius-sm:8px;
    --shadow:0 1px 2px rgba(16,24,40,.04),0 1px 3px rgba(16,24,40,.05);
    --shadow-lg:0 12px 36px rgba(16,24,40,.14),0 2px 8px rgba(16,24,40,.06);
  }
  *{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    min-height:100vh;
    display:flex;
    flex-direction:column;
    background:var(--bg);
    color:var(--text);
    font:15px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    -webkit-font-smoothing:antialiased;
  }
  a{color:inherit;text-decoration:none}
  h1,h2,h3,h4{margin:0;color:var(--text-strong);font-weight:600;line-height:1.35}
  p{margin:0}
  button,input,select,textarea{font:inherit;color:inherit}
  .container{width:100%;max-width:1080px;margin:0 auto;padding:0 20px}
  main{flex:1 0 auto;padding-bottom:56px}

  /* ---------- 顶部导航 ---------- */
  .nav{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--border)}
  .nav-inner{display:flex;align-items:center;gap:24px;height:62px}
  .brand{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--text-strong);letter-spacing:.2px;font-size:15.5px}
  .brand .mark{width:28px;height:28px;border-radius:8px;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:13px;font-weight:700;letter-spacing:0}
  .brand .sub{color:var(--muted);font-weight:400;font-size:13px;border-left:1px solid var(--border-strong);padding-left:10px;margin-left:2px}
  .nav-links{display:flex;gap:4px;margin-left:auto}
  .nav-links a{padding:8px 15px;border-radius:var(--radius-sm);color:var(--muted);font-weight:500;font-size:14.5px;transition:background .15s,color .15s}
  .nav-links a:hover{background:#f1f3f6;color:var(--text-strong)}
  .nav-links a.active{color:var(--accent);background:var(--accent-soft)}

  /* ---------- 通用组件 ---------- */
  .card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
  .card-head{display:flex;align-items:center;gap:12px;padding:16px 20px;border-bottom:1px solid var(--border)}
  .card-head h2{font-size:15.5px}
  .card-head .spacer{margin-left:auto}
  .card-body{padding:20px}
  .section{margin-top:28px}
  .section-title{font-size:13px;font-weight:600;letter-spacing:.6px;color:var(--muted);text-transform:uppercase;margin-bottom:12px}

  .btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 16px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--surface);color:var(--text-strong);font-size:14.5px;font-weight:500;cursor:pointer;transition:.15s;white-space:nowrap}
  .btn:hover{background:#f4f5f8;border-color:#c9cdd6}
  .btn:active{transform:translateY(1px)}
  .btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
  .btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}
  .btn-sm{padding:6px 12px;font-size:13.5px;border-radius:7px}
  .btn-danger{color:var(--danger);border-color:#eccfc9;background:var(--surface)}
  .btn-danger:hover{background:var(--danger-soft);border-color:#e0b3aa}
  .btn-link{padding:6px 8px;border:0;background:none;color:var(--accent);font-size:13.5px;border-radius:6px;cursor:pointer}
  .btn-link:hover{background:var(--accent-soft)}
  .btn-link.danger{color:var(--danger)}
  .btn-link.danger:hover{background:var(--danger-soft)}
  .btn:disabled{opacity:.5;cursor:not-allowed}

  .badge{display:inline-flex;align-items:center;gap:5px;padding:2px 9px;border-radius:999px;font-size:12.5px;font-weight:500;line-height:1.7;white-space:nowrap}
  .badge::before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor;opacity:.75}
  .badge.qual{background:var(--accent-soft);color:#2b5cc4}
  .badge.val{background:var(--green-soft);color:var(--green)}
  .badge.gray{background:#f1f3f6;color:var(--muted)}

  .muted{color:var(--muted)}
  .small{font-size:13px}
  .mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

  /* ---------- 首页 ---------- */
  .hero{padding:56px 0 8px;max-width:720px}
  .eyebrow{font-size:13px;font-weight:600;letter-spacing:1.2px;color:var(--accent);text-transform:uppercase;margin-bottom:14px}
  .hero h1{font-size:32px;letter-spacing:-.4px;margin-bottom:14px}
  .hero .lead{color:var(--muted);font-size:16px;line-height:1.75}
  .hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
  .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:40px}
  .stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow)}
  .stat .k{font-size:13px;color:var(--muted)}
  .stat .v{font-size:26px;font-weight:600;color:var(--text-strong);margin-top:6px;letter-spacing:-.5px}
  .stat .v small{font-size:13px;font-weight:500;color:var(--muted);margin-left:4px;letter-spacing:0}
  .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
  .feature{padding:20px}
  .feature h3{font-size:15px;margin-bottom:8px}
  .feature p{color:var(--muted);font-size:14px}
  .feature .ic{width:32px;height:32px;border-radius:9px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:15px;font-weight:700;margin-bottom:12px}

  /* ---------- 列表 / 表格 ---------- */
  .toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:16px 20px;border-bottom:1px solid var(--border)}
  .search{position:relative;flex:1 1 240px;max-width:340px}
  .search input{width:100%;padding:9px 12px 9px 34px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface-2);outline:none;transition:.15s;font-size:14.5px}
  .search input:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(47,107,216,.12)}
  .search .ic{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:13px;pointer-events:none}
  .table-wrap{overflow-x:auto;border-radius:0 0 var(--radius) var(--radius)}
  table{width:100%;border-collapse:collapse;font-size:14.5px}
  th{text-align:left;font-weight:600;font-size:12.5px;letter-spacing:.4px;color:var(--muted);padding:11px 18px;border-bottom:1px solid var(--border);background:var(--surface-2);white-space:nowrap;text-transform:uppercase}
  td{padding:14px 18px;border-bottom:1px solid var(--border);vertical-align:middle}
  tbody tr:last-child td{border-bottom:0}
  tbody tr:hover{background:var(--surface-2)}
  .stock-name{font-weight:600;color:var(--text-strong);cursor:pointer}
  .stock-name:hover{color:var(--accent)}
  .cell-sub{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}
  .row-actions{display:flex;gap:2px;justify-content:flex-end;flex-wrap:wrap}
  .num{display:inline-flex;min-width:26px;justify-content:center;padding:1px 8px;border-radius:999px;background:#f1f3f6;color:var(--text);font-size:13px;font-weight:500}
  .num.has{background:var(--accent-soft);color:var(--accent)}
  .num.has-val{background:var(--green-soft);color:var(--green)}

  /* ---------- 空状态 ---------- */
  .empty{padding:52px 24px;text-align:center;color:var(--muted)}
  .empty .ic{width:46px;height:46px;margin:0 auto 14px;border-radius:13px;background:#f1f3f6;display:grid;place-items:center;font-size:20px;color:#a8afba}
  .empty h3{font-size:15.5px;color:var(--text-strong);margin-bottom:6px}
  .empty p{font-size:14px;max-width:420px;margin:0 auto}
  .empty .actions{margin-top:18px;display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
  .empty.compact{padding:32px 20px}

  /* ---------- 详情页 ---------- */
  .crumb{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:13.5px;padding:18px 0 0;cursor:pointer}
  .crumb:hover{color:var(--accent)}
  .detail-head{display:flex;align-items:flex-start;gap:20px;flex-wrap:wrap;padding:22px 20px}
  .detail-head .title{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
  .detail-head h1{font-size:24px;letter-spacing:-.3px}
  .code-chip{font-size:13px;font-weight:600;color:var(--muted);background:#f1f3f6;border-radius:6px;padding:2px 9px;letter-spacing:.4px}
  .detail-meta{display:flex;gap:22px;flex-wrap:wrap;margin-top:12px;color:var(--muted);font-size:13.5px}
  .detail-actions{margin-left:auto;display:flex;gap:8px;flex-wrap:wrap}
  .report-group{margin-top:20px}
  .report-list{display:flex;flex-direction:column}
  .report-item{display:flex;align-items:center;gap:16px;padding:15px 20px;border-bottom:1px solid var(--border)}
  .report-item:last-child{border-bottom:0}
  .report-item:hover{background:var(--surface-2)}
  .file-ic{width:36px;height:36px;flex:none;border-radius:9px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:11px;font-weight:700;letter-spacing:.3px;text-transform:uppercase}
  .file-ic.val{background:var(--green-soft);color:var(--green)}
  .report-main{min-width:0;flex:1}
  .report-title{font-weight:500;color:var(--text-strong);font-size:14.5px;display:flex;align-items:center;gap:9px;flex-wrap:wrap}
  .report-sub{color:var(--muted);font-size:13px;margin-top:3px;display:flex;gap:14px;flex-wrap:wrap}
  .report-note{color:var(--muted);font-size:13px;margin-top:6px;line-height:1.6;max-width:640px;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  .report-actions{display:flex;gap:2px;flex:none;flex-wrap:wrap;justify-content:flex-end}

  /* ---------- 弹窗 ---------- */
  .modal-mask{position:fixed;inset:0;z-index:80;background:rgba(28,32,38,.42);display:flex;align-items:flex-start;justify-content:center;padding:48px 18px;overflow-y:auto;animation:fade .16s ease-out}
  .modal{width:100%;max-width:560px;background:var(--surface);border-radius:14px;box-shadow:var(--shadow-lg);animation:pop .18s ease-out;overflow:hidden}
  .modal-head{display:flex;align-items:center;gap:12px;padding:18px 22px;border-bottom:1px solid var(--border)}
  .modal-head h3{font-size:16px}
  .modal-head .close{margin-left:auto;width:30px;height:30px;border:0;background:none;border-radius:8px;color:var(--muted);font-size:20px;line-height:1;cursor:pointer}
  .modal-head .close:hover{background:#f1f3f6;color:var(--text-strong)}
  .modal-body{padding:22px}
  .modal-foot{display:flex;justify-content:flex-end;gap:10px;padding:16px 22px;border-top:1px solid var(--border);background:var(--surface-2)}
  @keyframes fade{from{opacity:0}to{opacity:1}}
  @keyframes pop{from{opacity:0;transform:translateY(-8px) scale(.99)}to{opacity:1;transform:none}}

  /* ---------- 表单 ---------- */
  .field{margin-bottom:16px}
  .field:last-child{margin-bottom:0}
  .field label{display:block;font-size:13.5px;font-weight:500;color:var(--text-strong);margin-bottom:7px}
  .field label .req{color:var(--danger);margin-left:3px}
  .field .hint{font-size:12.5px;color:var(--muted);margin-top:6px}
  .input,select.input,textarea.input{width:100%;padding:9px 12px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);background:var(--surface-2);outline:none;transition:.15s;font-size:14.5px}
  textarea.input{resize:vertical;min-height:76px;line-height:1.6}
  .input:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(47,107,216,.12)}
  .input::placeholder{color:#aeb4be}
  .field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .drop{border:1.5px dashed var(--border-strong);border-radius:var(--radius);background:var(--surface-2);padding:20px;text-align:center;cursor:pointer;transition:.15s}
  .drop:hover,.drop.over{border-color:var(--accent);background:var(--accent-soft)}
  .drop .t{font-size:14px;color:var(--text-strong);font-weight:500}
  .drop .s{font-size:12.5px;color:var(--muted);margin-top:4px}
  .drop .picked{margin-top:10px;font-size:13px;color:var(--accent);font-weight:500;word-break:break-all}
  .form-error{background:var(--danger-soft);color:var(--danger);border-radius:var(--radius-sm);padding:9px 12px;font-size:13.5px;margin-bottom:16px}

  /* ---------- 提示条 ---------- */
  #toast{position:fixed;left:50%;bottom:32px;transform:translateX(-50%);z-index:120;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}
  .toast{background:#22262c;color:#fff;border-radius:9px;padding:10px 18px;font-size:14px;box-shadow:var(--shadow-lg);animation:up .2s ease-out;max-width:min(90vw,460px)}
  .toast.warn{background:#8a5a12}
  .toast.err{background:#a83524}
  @keyframes up{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

  /* ---------- 页脚 ---------- */
  .footer{flex:none;border-top:1px solid var(--border);background:var(--surface);padding:22px 0;color:var(--muted);font-size:13.5px}
  .footer-inner{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
  .footer .dot{width:4px;height:4px;border-radius:50%;background:var(--border-strong)}
  .footer .right{margin-left:auto}

  @media (max-width:860px){
    .stats{grid-template-columns:repeat(2,1fr)}
    .grid-3{grid-template-columns:1fr}
    .hero{padding-top:38px}
    .hero h1{font-size:26px}
    .nav-inner{gap:12px}
    .brand .sub{display:none}
  }
  @media (max-width:640px){
    .container{padding:0 14px}
    .field-row{grid-template-columns:1fr}
    .detail-actions{margin-left:0;width:100%}
    .report-item{align-items:flex-start;flex-wrap:wrap}
    .report-actions{width:100%;justify-content:flex-start}
    .modal-mask{padding:18px 12px}
  }

  /* ---------- 共享模式新增：管理员入口 / 提示 / 错误横幅 ---------- */
  .nav-user{display:flex;align-items:center;gap:8px;margin-left:14px;padding-left:14px;border-left:1px solid var(--border)}
  .admin-chip{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;font-weight:600;color:var(--accent);background:var(--accent-soft);border-radius:999px;padding:3px 10px;white-space:nowrap}
  .admin-chip::before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor}
  .visitor-note{font-size:13.5px;color:var(--muted);white-space:nowrap}
  .hint{font-size:12.5px;color:var(--muted);margin-top:8px;line-height:1.6}
  .alert{display:flex;align-items:center;gap:10px;margin-top:18px;padding:11px 14px;border:1px solid #eccfc9;background:var(--danger-soft);color:var(--danger);border-radius:var(--radius);font-size:14px}
  .alert .btn-link{color:var(--danger);text-decoration:underline}
  @media (max-width:720px){
    .nav-user{margin-left:auto;padding-left:0;border-left:0}
    .nav-links{margin-left:12px}
    .nav-links a{padding:8px 10px;font-size:14px}
    .visitor-note{display:none}
  }