:root{
  --bg:#0b1220;
  --card:#0f1b33;
  --text:#eaf0ff;
  --muted:#a8b3d6;
  --border:rgba(255,255,255,.10);
  --primary:#3b82f6;
  --danger:#ef4444;
  --shadow:0 10px 30px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html,body{min-height:100%}
html{
  background: var(--bg);
}
body{
  margin:0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background: radial-gradient(1200px 600px at 20% 10%, rgba(59,130,246,.35), transparent),
              radial-gradient(1000px 700px at 90% 30%, rgba(168,85,247,.25), transparent),
              var(--bg);
  color:var(--text);
}

code{background:rgba(255,255,255,.08);padding:2px 6px;border-radius:6px}
a{color:#93c5fd}

.page{
  max-width: 980px;
  margin: 0 auto;
  padding: 22px;
}
.page.narrow{max-width:720px}

.header{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
  margin-bottom: 16px;
}
.title{font-size:20px;font-weight:700;letter-spacing:.2px}
.subtitle{margin-top:6px;color:var(--muted);font-size:13px;line-height:1.4}
.badge{
  border:1px solid var(--border);
  background:rgba(255,255,255,.06);
  padding:8px 10px;
  border-radius:10px;
  color:var(--muted);
  font-size:12px;
}

.card{
  border:1px solid var(--border);
  background:rgba(15,27,51,.70);
  backdrop-filter: blur(12px);
  border-radius:14px;
  padding:16px;
  box-shadow: var(--shadow);
  margin: 14px 0;
}
.card-title{font-weight:700;margin-bottom:10px}
.hint{color:var(--muted);font-size:13px;line-height:1.5}
.muted-box{background:rgba(255,255,255,.04)}
.muted{color:var(--muted)}

.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.mt{margin-top:12px}

.input{
  flex: 1 1 380px;
  min-width: 220px;
  padding: 10px 12px;
  border-radius: 12px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--text);
  outline:none;
}
.input:focus{border-color:rgba(59,130,246,.8);box-shadow:0 0 0 3px rgba(59,130,246,.18)}
.input-highlight{
  border-color: rgba(59,130,246,.45);
  background: rgba(59,130,246,.08);
  box-shadow: 0 0 0 1px rgba(59,130,246,.2);
}
.input-highlight::placeholder{color:var(--muted);opacity:.9}
.input-highlight:focus{
  border-color: rgba(59,130,246,.8);
  background: rgba(59,130,246,.12);
  box-shadow: 0 0 0 3px rgba(59,130,246,.22);
}
select.input,
select {
  background: var(--card);
  color: var(--text);
  cursor: pointer;
}
select option {
  background: var(--card);
  color: var(--text);
}
.label{color:var(--muted);font-size:13px}

.file{flex:1 1 420px}

.btn{
  padding: 10px 14px;
  border-radius: 12px;
  border:1px solid var(--border);
  background: rgba(255,255,255,.07);
  color: var(--text);
  cursor:pointer;
  transition: transform .05s ease, background .2s ease, border-color .2s ease;
  user-select:none;
}
.btn:hover{background:rgba(255,255,255,.10)}
.btn:active{transform:translateY(1px)}
.btn.primary{
  border-color: rgba(59,130,246,.55);
  background: rgba(59,130,246,.22);
}
.btn.primary:hover{background:rgba(59,130,246,.30)}
.btn.danger{
  border-color: rgba(239,68,68,.55);
  background: rgba(239,68,68,.18);
}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.small{padding:7px 10px;border-radius:10px;font-size:13px}

.qr{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.qr img{
  width: 220px;
  height: 220px;
  background:#fff;
  border-radius: 12px;
  padding: 6px;
}
.kv{
  border:1px solid var(--border);
  background:rgba(255,255,255,.05);
  padding: 10px 12px;
  border-radius: 12px;
  min-width: 260px;
}
.kv .k{color:var(--muted);font-size:12px}
.kv .v{margin-top:6px;font-size:13px;word-break:break-all;line-height:1.4}

.filelist{margin:8px 0 0 16px;color:var(--muted);font-size:13px}

.table{
  width: 100%;
  border-collapse: collapse;
  overflow:hidden;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.table th,.table td{
  padding: 10px 10px;
  border-bottom:1px solid var(--border);
  font-size:13px;
  text-align:left;
  color: var(--text);
}
.table th{color:var(--muted);background:rgba(255,255,255,.04);font-weight:600}
.table tr:last-child td{border-bottom:none}
.pill{
  display:inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  border:1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
}
.pill.ok{border-color:rgba(16,185,129,.45);background:rgba(16,185,129,.12);color:#a7f3d0}
.pill.open{border-color:rgba(59,130,246,.45);background:rgba(59,130,246,.12);color:#bfdbfe}
.pill.err{border-color:rgba(239,68,68,.45);background:rgba(239,68,68,.12);color:#fecaca}

.footer{
  margin-top: 18px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  display:flex;
  gap:10px;
  justify-content:space-between;
  flex-wrap:wrap;
}

/* 签名弹窗（全屏） */
.modal{
  position:fixed;
  inset:0;
  background: rgba(0,0,0,.80);
  display:flex;
  flex-direction:column;
  z-index: 9999;
}
.modal.hidden{display:none}
.modal-bar{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding: 10px 12px;
  gap: 10px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}
.modal-title{font-weight:700}
.modal-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.modal-body{
  flex:1;
  display:flex;
  padding: 10px;
}
/* 回收站弹窗内容区可滚轮滚动 */
#recycleBinModal .modal-body {
  min-height: 0;
  overflow-y: auto;
}
.sig-canvas-wrap {
  position: relative;
  flex: 1;
  display: flex;
  min-width: 0;
}
.sig-direction-hint {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(90deg);
  z-index: 1;
  pointer-events: none;
  font-size: clamp(72px, 20vmin, 112px);
  color: rgba(0, 0, 0, 0.22);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
#sigCanvas{
  width: 100%;
  height: 100%;
  background:#fff;
  border-radius: 12px;
  touch-action: none;
  user-select: none;
}

/* 居中提示框（未填编号等） */
.tip-overlay{
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,.55);
}
.tip-overlay.hidden{display:none}
.tip-box{
  position: relative;
  min-width: 280px;
  max-width: 90%;
  padding: 20px 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 20px 40px rgba(0,0,0,.4);
}
.tip-close{
  position: absolute;
  top: 10px;
  right: 12px;
  width: 28px;
  height: 28px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  border-radius: 8px;
}
.tip-close:hover{color:var(--text);background:rgba(255,255,255,.08)}
.tip-msg{margin:0 0 16px;color:var(--text);font-size:15px;line-height:1.5}
.tip-actions{display:flex;justify-content:flex-end;gap:10px}