/* ====== AI 制作页专属样式（复用 style.css 的 CSS 变量与 .up-* 弹窗类） ====== */

body.ai-page {
  background: var(--bg);
}

.ai-topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
}

.ai-back {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 10px;
  border-radius: 8px;
  font-size: 15px;
  color: var(--text);
  text-decoration: none;
}

.ai-back:hover { background: var(--bg); }

.ai-title {
  flex: 1;
  font-size: 17px;
  font-weight: 600;
  text-align: center;
}

.ai-spacer { flex-shrink: 0; width: 44px; }

.ai-main {
  max-width: 520px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ai-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ai-label { font-size: 13px; color: var(--text-secondary); }

.ai-textarea {
  width: 100%;
  min-height: 84px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 16px;             /* ≥16px 防 iOS 聚焦自动放大 */
  font-family: inherit;
  color: var(--text);
  background: var(--card-bg);
  resize: vertical;
}

.ai-textarea:focus { outline: none; border-color: var(--accent); }

.ai-count { align-self: flex-end; font-size: 12px; color: var(--text-secondary); }

.ai-sizes { display: flex; gap: 10px; }

.ai-size {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-height: 44px;
  padding: 10px 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card-bg);
  font-size: 15px;
  color: var(--text);
  cursor: pointer;
}

.ai-size small { font-size: 11px; color: var(--text-secondary); }

.ai-size.active {
  border-color: var(--accent);
  color: var(--accent);
}

.ai-size.active small { color: var(--accent); }

.ai-size:disabled { opacity: 0.5; cursor: not-allowed; }

.ai-generate {
  height: 48px;
  border: none;
  border-radius: 24px;
  background: var(--accent);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}

.ai-generate:disabled { opacity: 0.45; cursor: not-allowed; }

.ai-result {
  min-height: 200px;
  border: 1px dashed var(--border);
  border-radius: 12px;
  background: var(--card-bg);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ai-empty,
.ai-loading,
.ai-error {
  padding: 40px 12px;
  text-align: center;
  font-size: 14px;
  color: var(--text-secondary);
}

.ai-error { color: #d9534f; }

.ai-spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  vertical-align: -4px;
  margin-right: 8px;
  animation: ai-spin 0.8s linear infinite;
}

@keyframes ai-spin { to { transform: rotate(360deg); } }

.ai-figure {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin: 0;
}

.ai-figure img {
  max-width: 100%;
  max-height: 60vh;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
}

.ai-figure-actions { display: flex; gap: 10px; }

.ai-upload-btn,
.ai-regen-btn {
  min-height: 44px;
  padding: 0 20px;
  border-radius: 22px;
  font-size: 15px;
  cursor: pointer;
}

.ai-upload-btn { border: none; background: var(--accent); color: #fff; font-weight: 600; }
.ai-regen-btn { border: 1px solid var(--border); background: var(--card-bg); color: var(--text); }

.ai-upload-btn:disabled { opacity: 0.45; cursor: not-allowed; }

.ai-success-actions a { text-decoration: none; }

/* ====== 参考图（图生图） ====== */
.ai-ref-add {
  width: 100%;
  min-height: 44px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  background: var(--card-bg);
  color: var(--text-secondary);
  font-size: 15px;
  cursor: pointer;
}

.ai-ref-processing {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 12px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  background: var(--card-bg);
  color: var(--text-secondary);
  font-size: 14px;
}

.ai-ref-processing-text {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ai-ref-preview {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 64px;
  padding: 6px 52px 6px 6px;   /* 右侧给 × 按钮留位 */
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card-bg);
}

.ai-ref-thumb {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  object-fit: cover;
  border-radius: 8px;
  background: #fff;
}

.ai-ref-name {
  font-size: 13px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ai-ref-remove {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

.ai-ref-modes {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}

.ai-ref-hint {
  margin: 0;
  font-size: 12px;
  color: var(--text-secondary);
}

.ai-ref-add:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* 多参考图槽位容器 + 单个槽位（编号徽标 + 缩略图 + 文件名 + × 删除）。缩略图/文件名/删除复用
   .ai-ref-thumb / .ai-ref-name / .ai-ref-remove，视觉与旧单张预览一致 */
.ai-ref-slots {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ai-ref-slot {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 64px;
  padding: 6px 52px 6px 8px;   /* 右侧给 × 按钮留位 */
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card-bg);
}

.ai-ref-badge {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
}

/* ====== 动图首帧（图生图：静图 / GIF 取帧） ====== */
.ai-vidref-entry {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* 取帧面板：总帧数 + 第 1/2 帧按钮 + 手动帧号输入 */
.ai-gif-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 8px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card-bg);
}

.ai-gif-count {
  margin: 0;
  font-size: 14px;
  color: var(--text);
}

.ai-gif-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.ai-gif-manual {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.ai-gif-manual-label {
  font-size: 13px;
  color: var(--text-secondary);
}

.ai-gif-input {
  width: 84px;
  min-height: 40px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
}

.ai-gif-ok {
  min-height: 40px;
  padding: 0 16px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  cursor: pointer;
}

.ai-gif-err {
  margin: 0;
  font-size: 13px;
  color: #e53935;
}

/* 清理输入框按钮：与字数统计同行，低调小按钮 */
.ai-clear-btn {
  align-self: flex-start;
  margin-top: 4px;
  padding: 5px 12px;
  border: 1px solid var(--border, #e0e0e0);
  border-radius: 16px;
  background: transparent;
  color: var(--text-dim, #666);
  font-size: 12px;
  cursor: pointer;
}
.ai-clear-btn:active { background: rgba(0, 0, 0, 0.06); }