/* 主题与基础样式略 */
:root {
  --primary: #3b82f6;
  --primary-2: #4f46e5;
  --primary-3: #818cf8;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --bg: #f8fafc;
}

body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, 'Microsoft Yahei', sans-serif; background: #fff; color: var(--text); }
.app { max-width: 900px; margin: 0 auto; padding: 14px; }
.app-header { text-align: center; margin-bottom: 10px; }
.app-header h1 { margin: 0; font-size: 20px; }
.subtitle { margin-top: 4px; color: var(--muted); font-size: 12px; }

.card { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; margin: 12px 0; }
.card-header { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: #f9fafb; border-bottom: 1px solid var(--border); }
.card-header h2 { margin: 0; font-size: 16px; }
.badge { font-size: 12px; color: var(--muted); }

.import-row { display: flex; align-items: center; gap: 8px; padding: 12px 14px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; font-size: 13px; cursor: pointer; background: #fff; color: var(--text); transition: all .2s; }
.btn:hover { border-color: #cbd5e1; box-shadow: 0 1px 6px rgba(0,0,0,.06); }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.btn-text { background: transparent; }
.btn-primary { background: linear-gradient(135deg, var(--primary-3), var(--primary)); color: #fff; border-color: transparent; }
.btn-primary:hover { filter: brightness(1.02); }
.btn-secondary { background: #eef2ff; color: var(--primary-2); border-color: #e0e7ff; }

.drop-zone { margin: 0 14px 12px; border: 2px dashed #c7d2fe; border-radius: 10px; padding: 18px; background: #fafbff; }
.drop-zone.dragging { background: #f5f7ff; border-color: var(--primary-2); }
.drop-zone-content { display: flex; align-items: center; gap: 12px; color: var(--muted); }
.drop-zone .icon { font-size: 20px; }

.file-list { padding: 0 14px 14px; display: grid; gap: 8px; }
.file-item { display: flex; align-items: center; justify-content: space-between; background: #f9fafb; border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
.file-name { font-weight: 600; font-size: 13px; color: #111827; }
.file-meta { color: var(--muted); font-size: 12px; margin-left: 8px; }
.remove-btn { border: 1px solid #fecaca; background: #fff1f2; color: #b91c1c; padding: 6px 10px; border-radius: 8px; cursor: pointer; font-size: 12px; }
.remove-btn:hover { background: #ffe4e6; }

/* 选项区 */
.options-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px; padding: 12px 14px; }
.option { display: flex; align-items: center; gap: 8px; background: #f9fafb; border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; font-size: 13px; }

.blacklist-box { padding: 10px 14px; border-top: 1px dashed var(--border); }
.blacklist-row { display: grid; gap: 8px; margin-bottom: 8px; }
.label { font-size: 12px; color: var(--muted); }
textarea { width: 100%; min-height: 110px; resize: vertical; border: 1px solid var(--border); border-radius: 8px; padding: 10px; font-size: 13px; font-family: inherit; }
.hint { color: var(--muted); font-size: 12px; }

.explain { padding: 10px 14px 14px; }
.explain h3 { margin: 0 0 6px; font-size: 14px; color: #111827; }
.explain ul { margin: 4px 0 0; padding-left: 18px; }
.explain li { margin: 6px 0; color: var(--muted); font-size: 12px; }
.explain code { background: #f3f4f6; border: 1px solid var(--border); border-radius: 4px; padding: 0 4px; }

/* 处理与下载 */
.stats { display: flex; gap: 12px; align-items: center; color: var(--muted); font-size: 12px; }
.actions { display: flex; gap: 8px; padding: 12px 14px; flex-wrap: wrap; }

.results { padding: 0 14px 14px; display: grid; gap: 8px; }
.result-item { display: flex; align-items: center; justify-content: space-between; background: #f9fafb; border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
.result-meta { color: var(--muted); font-size: 12px; margin-top: 2px; }
.download-link { color: var(--primary-2); font-size: 13px; text-decoration: none; border: 1px solid #e0e7ff; background: #eef2ff; padding: 6px 10px; border-radius: 8px; }
.download-link:hover { background: #e0e7ff; }

/* 报告表格优化 */
.report-section { padding: 8px 14px 14px; }
.report-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.report-table thead th { background: #f3f4f6; color: #111827; text-align: left; padding: 8px; border-bottom: 1px solid var(--border); }
.report-table tbody td { padding: 8px; border-bottom: 1px solid var(--border); color: var(--text); }
.report-table tbody tr:nth-child(even) { background: #fafbff; }
.card-subheader h3 { margin: 6px 0 8px; font-size: 13px; color: var(--muted); }

/* 页脚 */
.app-footer { text-align: center; color: var(--muted); font-size: 12px; padding: 12px; }