/* core-business.css — 核心业务页面样式 */

/* ========== 通用 ========== */
.cb-page-title { font-size: 22px; font-weight: 700; margin: 0 0 16px; color: #333333; }
.cb-layout { max-width: 960px; margin: 0 auto; padding: 24px; }
.cb-card { background: #FFFFFF; border: 1px solid #E5E5EA; border-radius: 8px; padding: 20px; margin-bottom: 16px; }
.cb-btn { display: inline-block; padding: 8px 20px; border-radius: 6px; font-size: 14px; font-weight: 500; cursor: pointer; border: none; background: #007AFF; color: #FFFFFF; }
.cb-btn--ghost { background: #FFFFFF; color: #666666; border: 1px solid #E5E5EA; }
.cb-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.cb-empty { text-align: center; padding: 48px 20px; color: #9E9E9E; }
.cb-skeleton { background: linear-gradient(90deg, #F5F5F7 25%, #E5E5EA 50%, #F5F5F7 75%); background-size: 200% 100%; animation: cb-shimmer 1.5s infinite; border-radius: 8px; }
@keyframes cb-shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.cb-error { color: #FF3B30; padding: 20px; text-align: center; }
.cb-error__retry { color: #007AFF; cursor: pointer; margin-left: 8px; }

/* ========== 教案上传页 ========== */
.lesson-upload__form { display: flex; flex-direction: column; gap: 16px; }
.lesson-upload__field { display: flex; flex-direction: column; gap: 4px; }
.lesson-upload__label { font-size: 14px; font-weight: 500; color: #333333; }
.lesson-upload__input { padding: 8px 12px; border: 1px solid #E5E5EA; border-radius: 6px; font-size: 14px; }
.lesson-upload__select { padding: 8px 12px; border: 1px solid #E5E5EA; border-radius: 6px; font-size: 14px; background: #FFFFFF; }
.lesson-upload__textarea { padding: 8px 12px; border: 1px solid #E5E5EA; border-radius: 6px; font-size: 14px; min-height: 80px; resize: vertical; }

/* ========== 教案库页 ========== */
.lesson-list__grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.lesson-card { background: #FFFFFF; border: 1px solid #E5E5EA; border-radius: 8px; padding: 16px; cursor: pointer; transition: box-shadow 0.2s; }
.lesson-card:hover { box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
.lesson-card__title { font-size: 16px; font-weight: 600; margin: 0 0 8px; color: #333333; }
.lesson-card__meta { font-size: 12px; color: #9E9E9E; display: flex; gap: 12px; }
.lesson-card__footer { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.lesson-card__author { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; color: #666666; min-width: 0; }
.lesson-card__author-avatar { width: 20px; height: 20px; border-radius: 50%; flex: none; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; overflow: hidden; background: #EEF2FF; color: #3730A3; }
.lesson-card__author img.lesson-card__author-avatar { object-fit: cover; }
.lesson-card__author-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 140px; }
.lesson-card__stats { font-size: 12px; color: #666666; display: inline-flex; gap: 10px; flex: none; }
.lesson-filter { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.lesson-filter__select { padding: 6px 12px; border: 1px solid #E5E5EA; border-radius: 6px; font-size: 14px; }

/* ========== 教案详情页 ========== */
.lesson-detail__header { margin-bottom: 20px; }
.lesson-detail__version { background: #F5F5F7; border-radius: 6px; padding: 12px; margin: 8px 0; }
.lesson-detail__rating { display: flex; gap: 4px; }
.lesson-detail__star { cursor: pointer; font-size: 20px; color: #E5E5EA; }
.lesson-detail__star--active { color: #FF9500; }

/* ========== 工具上架页 ========== */
.tool-upload__form { display: flex; flex-direction: column; gap: 16px; }
.tool-upload__pricing { display: flex; gap: 12px; align-items: center; }
.tool-upload__row { display: flex; gap: 8px; align-items: center; }
.tool-upload__row .lesson-upload__input { flex: 1; }
.tool-upload__hint { font-size: 13px; line-height: 1.6; padding: 8px 12px; border-radius: 6px; background: #F5F5F7; color: #666666; }
.tool-upload__hint.hint-success { background: #E8F5E9; color: #2E7D32; }
.tool-upload__hint.hint-warn { background: #FFF8E1; color: #B26A00; }
.tool-upload__hint.hint-error { background: #FDECEA; color: #C62828; }
.tool-upload__hint.hint-info { background: #E3F2FD; color: #1565C0; }
.tool-upload__badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; font-weight: 600; margin-right: 6px; }
.tool-upload__badge--success { background: #4CAF50; color: #FFFFFF; }
.tool-upload__badge--warn { background: #FF9500; color: #FFFFFF; }
.tool-upload__badge--neutral { background: #9E9E9E; color: #FFFFFF; }

/* ========== 问答页 ========== */
.qa-list__item { background: #FFFFFF; border: 1px solid #E5E5EA; border-radius: 8px; padding: 16px; margin-bottom: 12px; cursor: pointer; }
.qa-list__title { font-size: 16px; font-weight: 600; color: #333333; margin: 0 0 8px; }
.qa-list__meta { font-size: 12px; color: #9E9E9E; }
.qa-detail__answer { background: #FFFFFF; border: 1px solid #E5E5EA; border-radius: 8px; padding: 16px; margin-bottom: 12px; }
.qa-detail__answer--adopted { border-left: 4px solid #4CAF50; }
.qa-sort-bar { display: flex; gap: 8px; margin-bottom: 12px; }
.qa-vote-btn { cursor: pointer; }
.qa-vote-btn--active { background: #E8F0FE; border-color: #0969DA; color: #0969DA; }
.qa-vote-count { margin-right: 8px; }

/* ========== PR页 ========== */
.pr-list__item { background: #FFFFFF; border: 1px solid #E5E5EA; border-radius: 8px; padding: 16px; margin-bottom: 12px; cursor: pointer; }
.pr-list__status { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; }
.pr-list__status--pending { background: #FF9500; color: #FFFFFF; }
.pr-list__status--accepted { background: #4CAF50; color: #FFFFFF; }
.pr-list__status--rejected { background: #FF3B30; color: #FFFFFF; }
.lesson-detail__actions { display: flex; gap: 12px; margin: 16px 0; }

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .cb-layout { padding: 12px; }
  .lesson-list__grid { grid-template-columns: 1fr; }
  .lesson-filter { flex-direction: column; }
}