/* 课后服务考勤 — 设计系统 v2
   真实 SaaS 风: 克制圆角/无渐变/细边框/线性图标/工作台入口
   主色 #1664ff 文字 #1f2329/#646a73/#8a919f 背景 #f5f6f7 边框 #e5e6eb */
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
:root{
  --primary:#1664ff;--primary-d:#0958d9;
  --text:#1f2329;--text-2:#646a73;--text-3:#8a919f;
  --bg:#f5f6f7;--card:#fff;--border:#e5e6eb;
  --green:#00b42a;--red:#f53f3f;--orange:#ff7d00;
}
html,body{height:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}
input,select,button{font-family:inherit;font-size:14px;outline:none}

/* 顶部栏 */
header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--border)}
.hd{max-width:760px;margin:0 auto;height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 16px}
.hd-l{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:600}
.hd-l .logo{width:28px;height:28px;border-radius:6px;background:var(--primary);display:flex;align-items:center;justify-content:center}
.hd-l .logo svg{width:16px;height:16px;stroke:#fff}
.hd-sub{font-size:12px;color:var(--text-3);font-weight:400;margin-left:8px;border-left:1px solid var(--border);padding-left:8px}
.hd-r{display:flex;align-items:center;gap:10px}
.avatar{width:28px;height:28px;border-radius:50%;background:#e8f0fe;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600}
.btn-logout{background:none;border:none;color:var(--text-2);font-size:13px;cursor:pointer;padding:4px 8px}
.btn-logout:hover{color:var(--red)}

main{max-width:760px;margin:0 auto;padding:16px;padding-bottom:40px}

/* 工作台 */
.wb-section{margin-bottom:20px}
.wb-title{font-size:13px;color:var(--text-3);margin-bottom:10px;padding-left:2px}
.wb-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.wb-item{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:14px 8px 12px;display:flex;flex-direction:column;align-items:center;gap:8px;cursor:pointer;transition:border-color .15s}
.wb-item:active{border-color:var(--primary)}
.wb-item .ic{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center}
.wb-item .ic svg{width:22px;height:22px}
.wb-item .t{font-size:13px;color:var(--text)}
.wb-item .d{font-size:11px;color:var(--text-3)}
.wb-item.ic-blue .ic{background:#e8f0fe}.wb-item.ic-blue svg{stroke:var(--primary)}
.wb-item.ic-green .ic{background:#e8ffea}.wb-item.ic-green svg{stroke:var(--green)}
.wb-item.ic-orange .ic{background:#fff3e8}.wb-item.ic-orange svg{stroke:var(--orange)}
.wb-item.ic-purple .ic{background:#f0e8ff}.wb-item.ic-purple svg{stroke:#7b61ff}

/* 我的课程(工作台快捷) */
.mycourse{border:1px solid var(--border);border-radius:8px;background:var(--card);overflow:hidden}
.mc-row{display:flex;align-items:center;gap:10px;padding:11px 14px;border-bottom:1px solid #f2f3f5;cursor:pointer}
.mc-row:last-child{border-bottom:none}
.mc-row:active{background:#f7f8fa}
.mc-n{font-size:14px}
.mc-p{font-size:12px;color:var(--text-3);margin-left:auto}
.mc-arrow{width:14px;height:14px;stroke:var(--text-3);flex:none}

/* 功能页 */
.page{display:none}
.page.show{display:block}
.pg-hd{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.pg-back{width:30px;height:30px;border:1px solid var(--border);background:#fff;border-radius:6px;display:flex;align-items:center;justify-content:center;cursor:pointer}
.pg-back svg{width:16px;height:16px;stroke:var(--text)}
.pg-title{font-size:17px;font-weight:600}

/* 分段控制 */
.seg{display:flex;background:#e9eaec;border-radius:6px;padding:2px;margin-bottom:12px}
.seg div{flex:1;text-align:center;padding:6px 0;font-size:13px;color:var(--text-2);border-radius:5px;cursor:pointer}
.seg div.on{background:#fff;color:var(--text);font-weight:500;box-shadow:0 1px 2px rgba(0,0,0,.06)}

/* 列表行 */
.row{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--border);border-radius:8px;padding:12px 14px;margin-bottom:8px;cursor:pointer}
.row:active{background:#f7f8fa}
.row .ic{width:36px;height:36px;border-radius:8px;background:#f2f3f5;display:flex;align-items:center;justify-content:center;flex:none}
.row .ic svg{width:18px;height:18px;stroke:var(--text-2)}
.row .info{flex:1;min-width:0}
.row .info b{font-size:14px;font-weight:500;display:block}
.row .info span{font-size:12px;color:var(--text-3)}
.row .side{font-size:12px;color:var(--text-3);flex:none}
.row .arrow{width:14px;height:14px;stroke:var(--text-3);flex:none}

/* 表单 */
.field{margin-bottom:12px}
.field label{display:block;font-size:12px;color:var(--text-2);margin-bottom:6px}
.field input,.field select{width:100%;height:38px;border:1px solid var(--border);border-radius:6px;padding:0 10px;background:#fff;color:var(--text)}
.field input:focus,.field select:focus{border-color:var(--primary)}

/* 按钮 */
.btn{height:38px;padding:0 18px;border-radius:6px;border:none;background:var(--primary);color:#fff;font-size:14px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.btn:active{background:var(--primary-d)}
.btn.block{width:100%}
.btn.ghost{background:#fff;border:1px solid var(--border);color:var(--text)}
.btn.ghost:active{background:#f7f8fa}
.btn.sm{height:28px;padding:0 10px;font-size:12px;border-radius:5px}
.btn.red{background:var(--red)}
.btn.green{background:var(--green)}
.btn.orange{background:var(--orange)}

/* 学生网格 */
.stu-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.stu{border:1px solid var(--border);background:#fff;border-radius:6px;padding:9px 4px;text-align:center;font-size:13px;cursor:pointer;position:relative;user-select:none}
.stu.absent{border-color:var(--red);color:var(--red);background:#fff1f0}
.stu.absent::after{content:"缺";position:absolute;top:-6px;right:-4px;background:var(--red);color:#fff;font-size:9px;border-radius:8px;padding:0 4px;line-height:14px}
@media(min-width:640px){.stu-grid{grid-template-columns:repeat(6,1fr)}}

/* 弹层 */
.mask{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:100;display:none;align-items:flex-end;justify-content:center}
.mask.show{display:flex}
.sheet{background:#fff;width:100%;max-width:760px;border-radius:12px 12px 0 0;padding:16px 16px 24px;max-height:85vh;overflow-y:auto}
.sh-hd{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.sh-title{font-size:16px;font-weight:600}
.sh-x{width:28px;height:28px;border:none;background:#f2f3f5;border-radius:50%;font-size:14px;color:var(--text-2);cursor:pointer}
.sh-info{display:flex;align-items:center;gap:10px;background:#f7f8fa;border-radius:8px;padding:10px 12px;margin-bottom:14px;font-size:13px;color:var(--text-2)}
.sh-info b{color:var(--text)}
.sh-info .sp{flex:1}
.cnt{font-size:12px;color:var(--text-3);margin-bottom:8px}

/* 统计卡 */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px}
.card{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:12px;text-align:center}
.card .n{font-size:20px;font-weight:600;line-height:1.3}
.card .n.blue{color:var(--primary)}.card .n.green{color:var(--green)}.card .n.red{color:var(--red)}
.card .l{font-size:11px;color:var(--text-3);margin-top:2px}

/* 表格 */
.tbl{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--border);border-radius:8px;overflow:hidden;font-size:13px}
.tbl th{background:#f7f8fa;padding:9px 10px;text-align:left;font-weight:500;color:var(--text-2);border-bottom:1px solid var(--border);white-space:nowrap}
.tbl td{padding:8px 10px;border-bottom:1px solid #f2f3f5;color:var(--text)}
.tbl tr:last-child td{border-bottom:none}
.tbl-wrap{overflow-x:auto;border-radius:8px}

/* 工具条 */
.bar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.bar select,.bar input{height:34px;border:1px solid var(--border);border-radius:6px;background:#fff;padding:0 8px;color:var(--text);max-width:140px}
.bar input[type=text]{flex:1;max-width:220px}

/* 筛选网格 */
.filter-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;background:#fff;border:1px solid var(--border);border-radius:8px;padding:12px;margin-bottom:12px}
.filter-grid .field{margin-bottom:0}
.filter-grid label{font-size:12px;color:var(--text-3);margin-bottom:4px}
.filter-grid input,.filter-grid select{height:36px}

/* 查询表格: 手机端横向滑动查看全部列 */
#pTblWrap{overflow-x:auto;-webkit-overflow-scrolling:touch;background:#fff;border:1px solid var(--border);border-radius:8px}
#pTblWrap table.tbl{min-width:620px;margin:0;border:none}

/* toast */
.toast{position:fixed;top:60px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.75);color:#fff;padding:9px 16px;border-radius:6px;font-size:13px;z-index:200;display:none;max-width:80vw;text-align:center}
.toast.show{display:block}
.toast.err{background:rgba(245,63,63,.9)}
#toast{position:fixed;top:60px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.75);color:#fff;padding:9px 16px;border-radius:6px;font-size:13px;z-index:200;display:none;max-width:80vw;text-align:center}
#toast.err{background:rgba(245,63,63,.9)}

/* 空状态 */
.empty{text-align:center;padding:40px 0;color:var(--text-3);font-size:13px}
.empty svg{width:44px;height:44px;stroke:#c9cdd4;margin-bottom:10px}

/* 分页 */
.pager{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:12px;font-size:13px;color:var(--text-2)}
.pager button{height:30px;padding:0 14px;border:1px solid var(--border);background:#fff;border-radius:6px;cursor:pointer;color:var(--text)}
.pager button:disabled{opacity:.4;cursor:default}

@media(max-width:480px){
  .wb-grid{grid-template-columns:repeat(4,1fr)}
  .cards{gap:8px}
}