/* 抖音快手封面图分割工具 */
.ip-grid { display: grid; grid-template-columns: 320px minmax(0, 1fr); gap: 20px; align-items: start; }
.ip-panel { background: var(--bg); border: 1px solid var(--rule); border-radius: var(--radius-md); padding: 20px; }
.ip-section { margin-bottom: 18px; }
.ip-section:last-child { margin-bottom: 0; }
.ip-section h3 { display: flex; align-items: center; gap: 6px; font-size: .95rem; margin: 0 0 12px; color: var(--ink); }
.ip-section h3 i { color: var(--accent); }

/* 上传区 */
.ip-upload {
  border: 2px dashed var(--rule);
  border-radius: var(--radius-md);
  padding: 26px 16px;
  text-align: center;
  cursor: pointer;
  transition: all .2s ease;
  background: var(--bg2);
}
.ip-upload:hover, .ip-upload.dragover { border-color: var(--accent); background: var(--accent-soft); }
.ip-upload i { font-size: 2rem; color: var(--accent); margin-bottom: 8px; display: block; }
.ip-upload p { color: var(--ink); font-size: .88rem; font-weight: 600; margin: 0 0 4px; }
.ip-hint { color: var(--muted); font-size: .75rem; }

.ip-preview-thumb { position: relative; margin-top: 10px; text-align: center; }
.ip-preview-thumb img { max-width: 100%; max-height: 130px; border-radius: var(--radius-sm); border: 1px solid var(--rule); }
.ip-remove {
  position: absolute; top: -8px; right: -8px;
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--danger); color: #fff; border: none;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  font-size: .9rem; padding: 0; transition: transform .15s ease;
}
.ip-remove:hover { transform: scale(1.1); }

/* 分割模式 */
.ip-mode-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.ip-mode-btn {
  border: 2px solid var(--rule); background: var(--bg2); border-radius: var(--radius-sm);
  padding: 12px 6px; cursor: pointer; transition: all .15s ease;
  text-align: center; display: flex; flex-direction: column; align-items: center; gap: 4px;
}
.ip-mode-btn:hover { border-color: var(--accent); }
.ip-mode-btn.active { border-color: var(--accent); background: var(--accent-soft); box-shadow: 0 2px 8px rgba(66, 185, 131, .15); }
.mode-icon { font-size: 1.3rem; color: var(--accent); }
.mode-label { font-size: .85rem; font-weight: 600; color: var(--ink); }
.mode-desc { font-size: .7rem; color: var(--muted); }

/* 表单 */
.ip-form-row { margin-bottom: 12px; }
.ip-form-row label { display: block; font-size: .82rem; color: var(--muted); margin-bottom: 5px; font-weight: 500; }
.ip-select {
  width: 100%; padding: 8px 10px; border: 1px solid var(--rule); border-radius: var(--radius-sm);
  font-size: .85rem; background: var(--bg); color: var(--ink); box-sizing: border-box; outline: none;
}
.ip-select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.ip-form-row input[type="range"] { width: 100%; accent-color: var(--accent); }
.ip-form-row input[type="range"] output { color: var(--accent); font-weight: 600; }
.ip-check-label { display: flex; align-items: center; gap: 8px; font-size: .82rem; color: var(--ink); cursor: pointer; }
.ip-check-label input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--accent); flex-shrink: 0; }

/* 按钮区 */
.ip-actions { display: flex; gap: 8px; }
.ip-actions .btn { flex: 1; justify-content: center; }

/* 主区域 */
.ip-main-panel { display: flex; flex-direction: column; }
.ip-canvas-container {
  width: 100%; background: var(--bg2); border-radius: var(--radius-md);
  border: 2px dashed var(--rule); display: flex; align-items: center; justify-content: center;
  min-height: 320px; padding: 20px; box-sizing: border-box;
}
.ip-placeholder { text-align: center; color: var(--muted); }
.ip-placeholder i { font-size: 3rem; margin-bottom: 12px; color: var(--rule); display: block; }
.ip-placeholder p { margin: 0; }
.ip-canvas-container canvas { max-width: 100%; max-height: 450px; border-radius: var(--radius-sm); box-shadow: 0 4px 12px rgba(0, 0, 0, .12); }

/* 结果网格 */
.ip-result-grid { display: grid; gap: 12px; background: var(--bg2); border-radius: var(--radius-md); padding: 16px; margin-top: 14px; }
.ip-result-item { position: relative; background: var(--bg); border: 1px solid var(--rule); border-radius: var(--radius-sm); overflow: hidden; box-shadow: 0 2px 8px rgba(0, 0, 0, .06); transition: transform .2s ease; }
.ip-result-item:hover { transform: translateY(-2px); }
.ip-result-item img { width: 100%; height: auto; display: block; }
.ip-result-label {
  position: absolute; top: 6px; left: 6px;
  background: rgba(0, 0, 0, .6); color: #fff; font-size: .75rem;
  padding: 2px 8px; border-radius: 4px;
}
.ip-result-dl {
  position: absolute; bottom: 6px; right: 6px;
  width: 32px; height: 32px; border-radius: var(--radius-sm);
  background: var(--accent); color: #fff; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: .9rem;
  opacity: .85; transition: opacity .2s ease;
}
.ip-result-dl:hover { opacity: 1; }
.ip-result-dl:disabled { opacity: .3; cursor: not-allowed; }

/* 使用提示 */
.ip-tips { margin-top: 18px; border-top: 1px solid var(--rule); padding-top: 16px; }
.ip-tips h4 { display: flex; align-items: center; gap: 6px; font-size: .9rem; margin: 0 0 12px; color: var(--ink); }
.ip-tips h4 i { color: var(--accent); }
.ip-tip-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.ip-tip-item { background: var(--bg2); border-radius: var(--radius-sm); padding: 10px 12px; border-left: 3px solid var(--accent); }
.ip-tip-item strong { display: flex; align-items: center; gap: 6px; font-size: .82rem; color: var(--ink); margin-bottom: 3px; }
.ip-tip-item strong i { color: var(--accent); }
.ip-tip-item p { font-size: .75rem; color: var(--muted); margin: 0; line-height: 1.5; }

@media (max-width: 900px) {
  .ip-grid { grid-template-columns: 1fr; }
  .ip-tip-grid { grid-template-columns: 1fr; }
  .ip-result-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .ip-result-grid { grid-template-columns: 1fr; }
  .ip-mode-grid { grid-template-columns: 1fr; }
}