:root{
  --bg:#f6f7fb;
  --card:#ffffff;
  --border:#e6e8ef;
  --text:#0f172a;
  --muted:#64748b;
  --primary:#2563eb;
  --primary2:#1d4ed8;
  --shadow: 0 10px 30px rgba(15, 23, 42, .08);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC","Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar{
  position: sticky;
  top:0;
  z-index: 10;
  background: rgba(246,247,251,.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 12px 14px;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 12px;
}

.brand{ display:flex; gap:10px; align-items:center; min-width:0; }
.logo{
  width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background: #eef2ff;
  border: 1px solid var(--border);
}
.title{ font-weight: 900; letter-spacing:.2px; }
.subtitle{ font-size:12px; color: var(--muted); margin-top:2px; }

.right{ display:flex; gap:10px; align-items:center; flex-wrap: wrap; justify-content:flex-end; }
.pill{
  font-size:12px;
  color: var(--muted);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 10px;
}

.btn{
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 750;
  transition: transform .05s ease, box-shadow .2s ease, border-color .2s ease;
}
.btn:hover{ border-color:#cfd6e6; box-shadow: 0 6px 16px rgba(15,23,42,.08); }
.btn:active{ transform: translateY(1px); }
.btn.primary{
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color: #fff;
  border-color: transparent;
}
.btn.ghost{ background: transparent; }
.btn:disabled{ opacity:.5; cursor:not-allowed; box-shadow:none; }

.wrap{
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px;
  display:grid;
  grid-template-columns: 1.25fr .95fr;
  gap: 14px;
  align-items:start;
}

.card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.cardHead{
  padding: 14px;
  border-bottom: 1px solid var(--border);
  display:flex;
  justify-content: space-between;
  align-items:flex-start;
  gap: 10px;
}
.cardTitle{ font-weight: 900; }
.hint{ font-size: 12px; color: var(--muted); margin-top: 4px; }

.previewCard{ min-height: 520px; }

.stage{
  position: relative;
  padding: 12px;

  /* ✅ 固定高度，长图在里面滚动 */
  height: min(70vh, 720px);
  min-height: 320px;
  overflow: auto;

  background: #f2f4f8;
  border-top: 1px solid #f1f3f7;
  border-bottom: 1px solid #f1f3f7;

  /* 手机滚动更顺滑 */
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;

  cursor: grab;
}
.stage.grabbing{ cursor: grabbing; }

canvas{
  display:block;
  background: #fff;
  border: 1px dashed #cfd6e6;
  border-radius: 14px;
}

.empty{
  position:absolute;
  inset: 16px;
  border: 1px dashed #cfd6e6;
  border-radius: 14px;
  display:none;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  color: var(--muted);
  background: rgba(255,255,255,.7);
}
.emptyTitle{ font-weight: 900; color: var(--text); opacity:.85; }
.emptySub{ font-size: 12px; margin-top: 6px; }

.cardFoot{
  padding: 10px 14px 14px;
  font-size: 12px;
  color: var(--muted);
}

.toolbar{
  display:flex;
  gap: 8px;
  align-items:center;
  flex-wrap: wrap;
  justify-content:flex-end;
}
.zoomLabel{
  font-size: 12px;
  color: var(--muted);
  min-width: 52px;
  text-align:center;
  background:#fff;
  border: 1px solid var(--border);
  padding: 8px 10px;
  border-radius: 12px;
}

.panelCard .cardHead{ align-items:center; }

.dropzone{
  margin: 12px 14px 0;
  padding: 14px;
  border-radius: 16px;
  border: 1px dashed #cfd6e6;
  background: #fbfcff;
  display:flex;
  gap: 12px;
  align-items:center;
  cursor:pointer;
  transition: background .2s ease, border-color .2s ease;
}
.dropzone:hover{ background:#f4f7ff; border-color:#a9b8df; }
.dropzone.dragover{ background:#eef2ff; border-color:#7090ff; }
.dzIcon{ font-size: 22px; }
.dzTitle{ font-weight: 900; }
.dzSub{ font-size:12px; color: var(--muted); margin-top: 2px; }

.block{ padding: 12px 14px 0; }
.blockTitle{ font-weight: 900; }
.hintSmall{ font-size:12px; color: var(--muted); margin-top:6px; }

.seg{
  display:flex;
  gap: 8px;
  margin-top: 10px;
}
.segBtn{
  flex:1;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  cursor:pointer;
  font-weight: 850;
}
.segBtn.active{
  border-color: rgba(37,99,235,.35);
  background: rgba(37,99,235,.08);
  color: #1d4ed8;
}

.label{
  display:block;
  font-size:12px;
  color: var(--muted);
  margin-bottom: 6px;
}
.grid2{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 10px;
}
input[type="text"], input[type="number"], select{
  width: 100%;
  padding: 10px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  outline: none;
}
input[type="text"]:focus, input[type="number"]:focus, select:focus{
  border-color: rgba(37,99,235,.45);
  box-shadow: 0 0 0 4px rgba(37,99,235,.10);
}

.checkline{
  display:flex;
  align-items:center;
  gap: 10px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}
.checkline input{ accent-color: var(--primary); }

.thumbs{
  list-style:none;
  padding: 0;
  margin: 10px 0 0;
  display:grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 10px;
}
.thumb{
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  background:#fff;
  position: relative;
}
.thumb img{
  width: 100%;
  height: 90px;
  object-fit: cover;
  display:block;
}
.badge{
  position:absolute;
  top:8px; left:8px;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(15,23,42,.65);
  color:#fff;
}
.miniBtns{
  position:absolute;
  top:8px; right:8px;
  display:flex;
  gap: 6px;
}
.miniBtn{
  width: 28px; height: 28px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(15,23,42,.55);
  color: #fff;
  cursor:pointer;
  font-weight: 900;
}
.miniBtn:hover{ background: rgba(15,23,42,.75); }

.actionsRow{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
  padding-bottom: 14px;
}

.toast{
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  background: rgba(15,23,42,.92);
  color: #fff;
  border-radius: 999px;
  padding: 10px 12px;
  font-size: 13px;
  display:none;
  z-index: 50;
  box-shadow: 0 10px 26px rgba(15,23,42,.25);
}

/* 手机端：上下排列 */
@media (max-width: 980px){
  .wrap{ grid-template-columns: 1fr; }
  .stage{ height: 56vh; min-height: 280px; }
}