:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --bg: #f5f7fa;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-secondary: #64748b;
  --success: #16a34a;
  --error: #dc2626;
  --pending: #d97706;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* 头部 */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 20px 24px;
}
.header-inner { max-width: 960px; margin: 0 auto; }
.site-header h1 { font-size: 26px; font-weight: 700; letter-spacing: 0.5px; }
.site-header .accent { color: var(--primary); }
.subtitle { color: var(--text-secondary); font-size: 14px; margin-top: 6px; }

/* 主体 */
.container { width: 100%; max-width: 960px; margin: 0 auto; padding: 28px 24px; flex: 1; }

/* 上传区 */
.upload-area {
  background: var(--card);
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 44px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
}
.upload-area:hover, .upload-area.dragover {
  border-color: var(--primary);
  background: #eff6ff;
}
.upload-icon { color: var(--primary); margin-bottom: 12px; }
.upload-title { font-size: 16px; font-weight: 600; }
.upload-hint { color: var(--text-secondary); font-size: 13px; margin-top: 8px; }

/* 区块 */
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 14px;
}
.section-head h2 { font-size: 18px; font-weight: 600; }
.count {
  display: inline-block;
  background: #e2e8f0;
  color: var(--text-secondary);
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 13px;
  margin-left: 6px;
  vertical-align: 2px;
}
.summary { font-size: 13px; color: var(--text-secondary); }

/* 按钮 */
.btn {
  border: none;
  border-radius: 8px;
  padding: 9px 18px;
  font-size: 14px;
  cursor: pointer;
  transition: background .2s, opacity .2s;
}
.btn-primary { background: var(--primary); color: #fff; font-weight: 600; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-primary:disabled { background: #93b4f0; cursor: not-allowed; }
.btn-ghost {
  background: #f1f5f9;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: #e2e8f0; }
.btn-danger { background: #fee2e2; color: var(--error); }
.btn-danger:hover { background: #fecaca; }
.btn-small { padding: 5px 12px; font-size: 13px; }

/* 文件列表 */
.file-list { list-style: none; }
.file-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 8px;
}
.file-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14px;
  font-weight: 500;
}
.file-meta { color: var(--text-secondary); font-size: 12px; white-space: nowrap; }
.badge {
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 12px;
  white-space: nowrap;
}
.badge-pending { background: #fef3c7; color: var(--pending); }
.badge-running { background: #dbeafe; color: var(--primary); }
.badge-success { background: #dcfce7; color: var(--success); }
.badge-error { background: #fee2e2; color: var(--error); }

/* 结果卡片 */
.result-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
}
.result-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.result-name { font-weight: 600; font-size: 14px; flex: 1; min-width: 160px; }
.result-meta { color: var(--text-secondary); font-size: 12px; }
.result-tools { display: flex; gap: 8px; }
.tabs { display: flex; border-bottom: 1px solid var(--border); }
.tab {
  padding: 9px 18px;
  font-size: 13px;
  cursor: pointer;
  border: none;
  background: none;
  color: var(--text-secondary);
  border-bottom: 2px solid transparent;
}
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.result-body { padding: 0; }
.result-body .source-view {
  margin: 0;
  padding: 16px;
  max-height: 420px;
  overflow: auto;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Courier New", monospace;
  font-size: 13px;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
  background: #fafbfc;
}
.result-body .preview-view { padding: 16px 20px; max-height: 420px; overflow: auto; font-size: 14px; line-height: 1.7; }
.result-body .preview-view h1, .result-body .preview-view h2,
.result-body .preview-view h3, .result-body .preview-view h4 { margin: 14px 0 8px; }
.result-body .preview-view p { margin: 8px 0; }
.result-body .preview-view ul, .result-body .preview-view ol { margin: 8px 0; padding-left: 24px; }
.result-body .preview-view code { background: #f1f5f9; border-radius: 4px; padding: 1px 5px; font-size: 13px; }
.result-body .preview-view pre { background: #f1f5f9; border-radius: 8px; padding: 12px; overflow: auto; }
.result-body .preview-view pre code { background: none; padding: 0; }
.result-body .preview-view table { border-collapse: collapse; margin: 10px 0; width: auto; }
.result-body .preview-view th, .result-body .preview-view td {
  border: 1px solid var(--border);
  padding: 6px 12px;
  font-size: 13px;
}
.result-body .preview-view blockquote {
  border-left: 4px solid var(--primary);
  margin: 8px 0;
  padding: 4px 14px;
  color: var(--text-secondary);
  background: #f8fafc;
}
.result-error { padding: 16px; color: var(--error); font-size: 13px; background: #fef2f2; }

/* 空状态 */
.empty-state { text-align: center; color: var(--text-secondary); padding: 30px 0; font-size: 14px; }

/* 页脚 */
.site-footer {
  text-align: center;
  color: var(--text-secondary);
  font-size: 12px;
  padding: 18px;
  border-top: 1px solid var(--border);
  background: var(--card);
}
.site-footer a { color: var(--primary); text-decoration: none; }

@media (max-width: 640px) {
  .container { padding: 16px; }
  .result-head { gap: 6px; }
  .result-tools { width: 100%; }
}

/* ===== v1.1.0 新增：文件夹上传 / 打包下载 / 链接转换 ===== */
.upload-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 12px;
}
.head-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.summary {
  font-size: 13px;
  opacity: .75;
  white-space: nowrap;
}
.url-section {
  margin-top: 24px;
}
.url-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
  flex-wrap: wrap;
}
.url-input {
  flex: 1 1 320px;
  min-width: 0;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid rgba(128, 128, 128, .35);
  background: transparent;
  color: inherit;
  font-size: 14px;
}
.url-input:focus {
  outline: 2px solid currentColor;
  outline-offset: -1px;
  opacity: .9;
}
.url-section .upload-hint code {
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(128, 128, 128, .18);
  font-size: 12px;
}
.file-item .file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
@media (max-width: 640px) {
  .url-row { flex-direction: column; }
  .url-input { flex: 1 1 auto; }
}