/* ============================================================
   组装机培训站 — 增量样式（标准/SOP/案例/考核）
   ============================================================ */

/* ---- 分类侧栏增强 ---- */
.cat-item-wrap{display:flex;align-items:center;border-radius:8px;overflow:hidden}
.cat-item-wrap .cat-item{flex:1}
.cat-item-wrap.active{background:var(--primary-light)}
.cat-del{flex-shrink:0;width:24px;height:24px;border-radius:6px;color:var(--text-tertiary);font-size:14px;line-height:1;display:none}
.cat-item-wrap:hover .cat-del{display:block}
.cat-del:hover{color:var(--red);background:rgba(255,59,48,0.1)}
.cat-add-row{margin-top:8px}

/* ---- 卡片增强 ---- */
.card-row-top{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin-bottom:4px}
.card-draft-badge{display:inline-block;font-size:.7rem;font-weight:600;padding:3px 10px;border-radius:var(--radius-full);background:rgba(255,149,0,0.12);color:var(--orange)}

/* ---- 详情 ---- */
.detail-meta-box{background:var(--surface);border:0.5px solid var(--separator);border-radius:var(--radius-sm);padding:10px 12px;text-align:center}
.detail-meta-label{font-size:.7rem;color:var(--text-tertiary);font-weight:600;letter-spacing:.05em;margin-bottom:3px}
.detail-meta-val{font-size:.95rem;font-weight:600;color:var(--text)}
.detail-spec-box{background:var(--primary-light);border:0.5px solid rgba(0,113,227,0.2);border-radius:var(--radius-sm);padding:14px 16px;margin-bottom:14px}
.detail-spec-val{font-size:1rem;font-weight:600;color:var(--primary);margin-top:4px}
.detail-content-label{font-size:.82rem;font-weight:700;color:var(--text);margin:14px 0 6px;letter-spacing:.01em}
.detail-disposal{margin-top:18px;padding-top:14px;border-top:0.5px solid var(--separator)}
.detail-disposal-body{font-size:.9rem;font-weight:600;color:var(--text);line-height:1.6;background:rgba(120,120,128,0.035);padding:14px 16px;border-radius:var(--radius-sm);border-left:3px solid var(--primary)}
.modal-box-lg{max-width:760px;width:92vw}

/* ---- 富文本 ---- */
.editor-row .ql-container{min-height:160px;font-size:15px}

/* ---- 图片封面上传 ---- */
.cover-drop{border:1.5px dashed var(--separator-thick);border-radius:var(--radius-sm);padding:18px;text-align:center;cursor:pointer;transition:border-color .2s}
.cover-drop:hover{border-color:var(--primary)}

/* ---- SOP 列表 ---- */
.sop-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.sop-card{cursor:pointer}

/* ---- SOP 流程流 ---- */
.flow-desc{font-size:.9rem;color:var(--text-secondary);margin:10px 0 6px}
.flow-steps{margin-top:14px;display:flex;flex-direction:column;gap:12px}
.flow-step{display:flex;gap:14px;background:var(--surface);border:0.5px solid var(--separator);border-radius:var(--radius);padding:16px 18px}
.flow-step-no{flex-shrink:0;width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.95rem}
.flow-step-body{flex:1;min-width:0}
.flow-step-title{font-size:1rem;font-weight:700;color:var(--text);margin-bottom:4px}
.flow-step-content{font-size:.9rem;color:var(--text-secondary);line-height:1.6}
.flow-step-tag{font-size:.82rem;margin-top:6px;padding:6px 10px;border-radius:8px;line-height:1.5}
.flow-step-tag.kp{background:rgba(255,149,0,0.1);color:var(--orange)}
.flow-step-tag.ct{background:rgba(255,59,48,0.08);color:var(--red)}

/* ---- SOP 步骤编辑器 ---- */
.step-block{border:0.5px solid var(--separator);border-radius:var(--radius-sm);padding:12px;margin-bottom:10px;background:var(--surface)}
.step-block-head{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.step-no-badge{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:700}
.s-title{flex:1;padding:7px 10px;border:1px solid var(--separator-thick);border-radius:8px;font-size:.9rem}
.step-ops{display:flex;gap:4px}
.step-ops button{width:26px;height:26px;border-radius:6px;background:rgba(120,120,128,0.08);color:var(--text-secondary);font-size:12px;line-height:1}
.step-ops button:hover{background:rgba(120,120,128,0.15);color:var(--text)}
.s-content{width:100%;padding:8px 10px;border:1px solid var(--separator-thick);border-radius:8px;font-size:.88rem;resize:vertical;margin-bottom:6px}
.step-row2{display:flex;gap:8px}
.step-row2 input{flex:1;padding:7px 10px;border:1px solid var(--separator-thick);border-radius:8px;font-size:.85rem}
.s-keypoint{border-color:rgba(255,149,0,0.4)!important}
.s-caution{border-color:rgba(255,59,48,0.4)!important}

/* ---- 考核布局 ---- */
.quiz-layout{max-width:860px;margin:0 auto;padding:20px}
.quiz-userbar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.quiz-userbar input{width:140px;padding:8px 12px;border:1px solid var(--separator-thick);border-radius:8px;text-align:center}
.quiz-subtabs{display:flex;gap:4px;background:var(--surface);border-radius:var(--radius);padding:4px;box-shadow:var(--shadow-card)}
.quiz-subtab{padding:9px 18px;border-radius:10px;font-size:.9rem;font-weight:600;color:var(--text-secondary)}
.quiz-subtab.active{background:var(--primary);color:#fff;box-shadow:var(--shadow-card)}

/* ---- 考卷列表 ---- */
.exam-card{display:flex;align-items:center;gap:14px;background:var(--surface);border:0.5px solid var(--separator);border-radius:var(--radius);padding:18px 20px;margin-bottom:12px;cursor:pointer;transition:transform .15s,box-shadow .15s}
.exam-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover)}
.exam-card-icon{font-size:1.6rem}
.exam-card-title{font-size:1.05rem;font-weight:700;flex:1}
.exam-card-hint{font-size:.82rem;color:var(--primary);font-weight:600}

/* ---- 答题 ---- */
.quiz-head-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:16px;padding:14px 16px;background:var(--surface);border-radius:var(--radius)}
.quiz-timer{font-size:.88rem;color:var(--text-secondary)}
.quiz-timer span{font-weight:700;color:var(--primary)}
.quiz-q-card{background:var(--surface);border:0.5px solid var(--separator);border-radius:var(--radius);padding:18px 20px;margin-bottom:14px}
.quiz-q-head{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px}
.quiz-q-no{flex-shrink:0;width:28px;height:28px;border-radius:8px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem}
.quiz-q-no.multi{background:var(--orange)}
.quiz-q-type{flex-shrink:0;font-size:.72rem;font-weight:600;padding:2px 10px;border-radius:6px;background:var(--primary-light);color:var(--primary);margin-top:4px}
.quiz-q-type.multi{background:rgba(255,149,0,0.12);color:var(--orange)}
.quiz-q-title{flex:1;font-size:.98rem;font-weight:600;line-height:1.5}
.quiz-q-opts{display:flex;flex-direction:column;gap:8px}
.quiz-opt{display:flex;align-items:center;gap:10px;padding:10px 14px;border:1.5px solid var(--separator);border-radius:8px;cursor:pointer;font-size:.9rem;transition:all .15s}
.quiz-opt:hover{border-color:var(--primary);background:var(--primary-light)}
.quiz-opt.selected{border-color:var(--primary);background:var(--primary-light)}
.quiz-opt input{accent-color:var(--primary);width:16px;height:16px;cursor:pointer}
.quiz-btn-row{display:flex;justify-content:center;margin:20px 0}
.quiz-btn-row .btn{padding:12px 40px}

/* ---- 结果 ---- */
.quiz-result{text-align:center;margin-top:8px}
.quiz-result-inner{background:var(--surface);border:0.5px solid var(--separator);border-radius:var(--radius);padding:28px 24px}
.quiz-score{font-size:56px;font-weight:800;background:linear-gradient(135deg,var(--primary),#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.quiz-grade{font-size:20px;font-weight:700;margin:4px 0}
.quiz-detail{font-size:.86rem;color:var(--text-secondary);margin-top:6px}
.quiz-wrong{text-align:left;margin-top:16px;border-top:0.5px solid var(--separator);padding-top:14px}
.quiz-wrong-title{font-weight:700;font-size:.92rem;margin-bottom:8px}

/* ---- 历史 ---- */
.history-empty{text-align:center;padding:48px;color:var(--text-secondary)}
.history-entry{background:var(--surface);border:0.5px solid var(--separator);border-radius:var(--radius);padding:16px 20px;margin-bottom:12px}
.h-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;cursor:pointer}
.h-score{font-size:24px;font-weight:800}
.h-score.good{color:var(--green)}
.h-score.mid{color:var(--orange)}
.h-score.bad{color:var(--red)}
.h-meta{font-size:.8rem;color:var(--text-secondary)}
.h-wrong{display:none;margin-top:12px;padding-top:12px;border-top:0.5px solid var(--separator)}
.h-wrong.show{display:block}
.h-wrong-item{font-size:.86rem;padding:6px 0;border-bottom:1px dashed var(--separator)}
.review-item{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:.88rem;border-bottom:1px solid var(--separator)}
.review-item .icon{font-size:16px;flex-shrink:0}

/* ---- 题库管理 ---- */
.qbank-group{margin-bottom:18px}
.qbank-group-title{font-weight:700;font-size:.95rem;padding:10px 14px;background:var(--primary-light);color:var(--primary);border-radius:8px;margin-bottom:8px}
.qbank-item{display:flex;align-items:center;gap:12px;justify-content:space-between;padding:12px 14px;border:0.5px solid var(--separator);border-radius:8px;margin-bottom:6px}
.qbank-item-main{display:flex;align-items:center;gap:10px;flex:1;min-width:0;font-size:.9rem}
.qbank-item-main span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.qbank-item-ops{display:flex;gap:6px;flex-shrink:0}

/* ---- 题目编辑器 ---- */
.q-opt-row{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.q-opt-row input[type=checkbox],.q-opt-row input[type=radio]{width:16px;height:16px;accent-color:var(--primary);flex-shrink:0}
.q-opt-text{flex:1;padding:8px 10px;border:1px solid var(--separator-thick);border-radius:8px;font-size:.88rem}
.q-opt-del{width:26px;height:26px;border-radius:6px;background:rgba(120,120,128,0.08);color:var(--text-tertiary);font-size:14px;line-height:1}
.q-opt-del:hover{background:rgba(255,59,48,0.12);color:var(--red)}

/* ---- 培训课件 ---- */
.course-layout{max-width:1280px;margin:0 auto;padding:20px 24px}
.course-list-header{text-align:center;margin-bottom:22px}
.course-list-header h2{margin:0 0 6px}
.course-list-header p{color:var(--text-secondary);margin:0 0 12px;font-size:.92rem}
.course-admin{margin-top:8px}
.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}
.course-card{background:var(--surface);border:0.5px solid var(--separator);border-radius:var(--radius);padding:22px;cursor:pointer;transition:transform .15s,box-shadow .15s}
.course-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-card-hover)}
.course-card-icon{font-size:2rem;margin-bottom:10px}
.course-card-title{font-size:1.1rem;font-weight:700;color:var(--text);margin-bottom:6px}
.course-card-desc{font-size:.86rem;color:var(--text-secondary);line-height:1.5;margin-bottom:12px}
.course-card-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:.8rem;color:var(--text-tertiary);font-weight:600}

/* 播放页 */
.course-player-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:10px}
.course-player-title{flex:1;min-width:0;display:flex;align-items:baseline;gap:12px}
.course-title{font-size:1.2rem;font-weight:700;color:var(--text)}
.course-step-count{font-size:.85rem;color:var(--text-secondary);font-weight:600;white-space:nowrap}
.course-progress{height:6px;border-radius:var(--radius-full);background:rgba(120,120,128,0.15);overflow:hidden;margin-bottom:16px}
.course-progress-bar{height:100%;width:0;background:linear-gradient(90deg,var(--primary),#7c3aed);border-radius:var(--radius-full);transition:width .3s ease}
.course-player-body{display:block}
.course-step-content{position:relative;background:var(--surface);border:0.5px solid var(--separator);border-radius:var(--radius);padding:44px 52px;min-height:calc(100vh - 280px);overflow:auto}
.course-step-title{font-size:1.7rem;font-weight:800;color:var(--text);margin-bottom:22px;padding-bottom:16px;border-bottom:1px solid var(--separator)}
.course-step-html{font-size:1.06rem;color:var(--text);line-height:1.8}
.course-step-html ul,.course-step-html ol{padding-left:24px;margin:10px 0}
.course-step-html li{margin:8px 0}
.course-step-html h3{margin:16px 0 8px}
.course-step-html h4{margin:14px 0 6px;font-size:1.05rem}
.course-step-html table{border-collapse:collapse;width:100%;font-size:.9rem;margin:12px 0}
.course-step-html table td,.course-step-html table th{border:1px solid var(--separator);padding:8px 12px}
.course-step-html table th{background:rgba(120,120,128,0.06)}
.course-player-foot{display:flex;align-items:center;justify-content:center;gap:20px;margin-top:20px}
.course-arrow{flex-shrink:0;width:54px;height:54px;border-radius:50%;background:var(--surface);border:1px solid var(--separator-thick);color:var(--text);font-size:30px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}
.course-arrow:hover:not(:disabled){background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:var(--shadow-card)}
.course-arrow:disabled{opacity:.28;cursor:default}
.course-step-dots{flex:1;display:flex;gap:8px;justify-content:center;overflow-x:auto;padding:6px 2px;flex-wrap:nowrap;scrollbar-width:none}
.course-step-dots::-webkit-scrollbar{display:none}
.course-dot{flex-shrink:0;min-width:32px;height:32px;padding:0 6px;border-radius:50%;border:1px solid var(--separator-thick);background:var(--surface);color:var(--text-secondary);font-size:.8rem;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}
.course-dot:hover{border-color:var(--primary);color:var(--primary)}
.course-dot.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:var(--shadow-card)}
.course-player-foot .btn{padding:12px 28px}

/* 课程编辑器 */
.course-step-block{margin-bottom:12px}
.cs-title{flex:1;padding:7px 10px;border:1px solid var(--separator-thick);border-radius:8px;font-size:.9rem}
.cs-kind{flex-shrink:0;padding:7px 8px;border:1px solid var(--separator-thick);border-radius:8px;font-size:.85rem;background:var(--surface)}
.course-step-block .ql-editor-host{min-height:120px}

/* 播放页：步骤图片（绝对定位自由摆放，覆盖在内容之上） */
.course-step-images{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:2}
.course-step-img{position:absolute;pointer-events:auto;cursor:zoom-in;border-radius:8px;box-shadow:0 4px 18px rgba(0,0,0,.18);border:1px solid rgba(120,120,128,.15)}

/* 步骤编辑器：图片画布 */
.cs-img-label{display:block;font-size:.78rem;font-weight:700;color:var(--text-secondary);margin:12px 0 6px;letter-spacing:.01em}
.cs-img-canvas{position:relative;height:340px;overflow:hidden;border:1.5px dashed var(--separator-thick);border-radius:var(--radius-sm);background:rgba(120,120,128,0.05);transition:border-color .2s,background .2s}
.cs-img-canvas.drag-over{border-color:var(--primary);background:var(--primary-light)}
.cs-img-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--text-tertiary);font-size:.86rem;pointer-events:none}
.cs-img-wrap{position:absolute;cursor:move;user-select:none;touch-action:none;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.14);background:#fff}
.cs-img-wrap img{display:block;width:100%;height:auto;border-radius:8px;pointer-events:none}
.cs-img-del{position:absolute;top:-10px;right:-10px;width:22px;height:22px;border-radius:50%;background:var(--red);color:#fff;font-size:13px;line-height:1;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 1px 4px rgba(0,0,0,.25)}
.cs-img-resize{position:absolute;right:-7px;bottom:-7px;width:16px;height:16px;border-radius:50%;background:var(--primary);border:2px solid #fff;cursor:nwse-resize;box-shadow:0 1px 4px rgba(0,0,0,.25)}

/* ---- 响应式 ---- */
@media (max-width:640px){
  .quiz-layout{padding:12px}
  .step-row2{flex-direction:column}
  .flow-step{flex-direction:column;gap:8px}
  .modal-box-lg{width:96vw}
  .course-layout{padding:14px 12px}
  .course-step-content{padding:22px 18px;min-height:62vh}
  .course-player-foot{flex-wrap:wrap;gap:12px}
  .course-step-dots{order:3;flex-basis:100%}
  .course-arrow{width:46px;height:46px;font-size:26px}
}