:root{
    --bg: #f7fafc;          /* 明亮背景 */
    --accent-bg: #eef6ff;   /* 顶部浅色渐变 */
    --card: #ffffff;
    --card-hover: #f5f7fb;
    --border: #e5e7eb;
    --text: #111827;
    --muted: #6b7280;
    --primary: #2563eb;     /* 蓝 */
    --primary-weak: #dbeafe;
    --danger: #dc2626;      /* 红 */
    --ring: rgba(37, 99, 235, .3);
  }
  *{ box-sizing: border-box; }
  html, body { height: 100%; }
  body.sp-body{
    margin: 0;
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", sans-serif;
    background:
      radial-gradient(900px 420px at 50% 0%, var(--accent-bg), transparent 70%),
      var(--bg);
  }
  
  .sp-wrap{
    min-height: 100%;
    display: grid;
    grid-template-rows: auto 1fr auto;
    gap: 16px;
    width: min(1100px, 92vw);
    margin: 0 auto;
    padding: 28px 0 28px;
  }
  
  .sp-head{ text-align: center; }
  .sp-title{ margin: 0; font-size: clamp(30px, 5vw, 44px); font-weight: 600; letter-spacing: .2px;text-transform: uppercase;  }
  .sp-sub{ margin: 6px 0 0; color: var(--muted); font-size: 14px; }
  
  .sp-main{ display: grid; gap: 14px; align-content: start; }
  
  .sp-alert{
    display:none;
    padding:10px 12px;
    border-radius:10px;
    background:#fff3cd;
    color:#7a5e00;
    border:1px solid #ffe49e;
  }
  .sp-alert[hidden]{ display:none; }
  .sp-alert:not([hidden]){ display:block; }
  
  .sp-grid{
    width: 100%;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    align-items: stretch;
  }
  
  .sp-card{
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
    border-radius: 14px;
    background: var(--card);
    border: 1px solid var(--border);
    transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
    text-align: left;
    box-shadow: 0 1px 2px rgba(0,0,0,.03);
  }
  .sp-card:hover{
    transform: translateY(-2px);
    background: var(--card-hover);
    border-color: #d1d5db;
    box-shadow: 0 6px 16px rgba(0,0,0,.06);
  }
  .sp-card:focus-visible{ outline: 0; box-shadow: 0 0 0 3px var(--ring); }
  
  .sp-card-title{ font-size: 16px; font-weight: 700; line-height: 1.25; }
  .sp-card-sub{ font-size: 12px; color: var(--muted); }
  
  .sp-meta{ margin-top: -2px; font-size: 12px; color: var(--muted); }
  .sp-chip{
    font-size: 11px; padding: 2px 8px; border-radius: 999px;
    border: 1px solid var(--border); background: #fff; color: var(--muted);
  }
  .sp-badge-ok  { background: var(--primary-weak); border-color: #bfdbfe; color: #1d4ed8; }
  .sp-badge-warn{ background: #fff7ed; border-color: #fed7aa; color: #9a3412; }
  
  .sp-actions{ margin-top: 6px; display: flex; gap: 8px; justify-content: flex-end; }
  
  .sp-btn{
    appearance: none; cursor: pointer;
    border: 1px solid var(--border);
    background: #fff; color: var(--text);
    padding: 8px 12px; border-radius: 10px; font-size: 13px;
    transition: background .15s ease, border-color .15s ease, transform .15s ease;
  }
  .sp-btn:hover{ background: var(--card-hover); }
  .sp-btn:focus-visible{ outline: 0; box-shadow: 0 0 0 3px var(--ring); }
  .sp-primary{ border-color: #93c5fd; background: var(--primary-weak); color:#1d4ed8; }
  .sp-primary:hover{ background: #cfe3ff; }
  .sp-danger{ border-color: #fecaca; background: #fee2e2; color:#b91c1c; }
  .sp-danger:hover{ background: #ffd9d9; }
  
  .sp-card-new{
    align-items: center; justify-content: center; text-align: center; min-height: 150px;
  }
  .sp-add-icon{
    width: 56px; height: 56px; display: grid; place-items: center;
    color: var(--primary); background: var(--primary-weak);
    border: 1px dashed #93c5fd; border-radius: 12px;
  }
  
  .sp-empty{ display: grid; place-items: center; gap: 8px; text-align: center; padding: 18px 0; }
  .sp-empty-icon{ color: var(--muted); opacity: .8; }
  .sp-empty-text{ margin: 0 0 6px; color: var(--muted); }
  
  .sp-foot{ text-align: center; color: var(--muted); font-size: 12px; }
  
  .sp-dialog{ border: none; background: transparent; }
  .sp-dialog::backdrop{ background: rgba(0,0,0,.28); }
  .sp-dialog-card{
    width: min(520px, 92vw);
    background: #ffffff;
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 14px; padding: 18px;
    box-shadow: 0 10px 28px rgba(0,0,0,.12);
  }
  .sp-field{ display: grid; gap: 6px; margin: 12px 0; }
  .sp-field input{
    background: #fff;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 12px; border-radius: 10px; font-size: 14px;
  }
  .sp-row{ display:flex; gap:8px; }
  .sp-row.end{ justify-content:flex-end; }