/* 班级学生成长记录系统 全局样式（本地化，无外部依赖） */
:root {
  --bg: #f3f5f9; --card: #ffffff; --text: #2b3445; --muted: #8a93a6;
  --primary: #3d85c6; --primary-d: #2f6ba3; --border: #e4e8f0;
  --green: #2e9e5b; --red: #d94f3d; --orange: #e8963c; --gold: #c9a227;
  --shadow: 0 1px 3px rgba(30, 45, 70, .08);
}
[data-theme="dark"] {
  --bg: #171c26; --card: #1f2632; --text: #dde3ee; --muted: #7c8698;
  --primary: #5b9bd5; --primary-d: #4a86b8; --border: #2e3746;
  --shadow: 0 1px 3px rgba(0, 0, 0, .3);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "Microsoft YaHei", "PingFang SC", sans-serif; background: var(--bg); color: var(--text); font-size: 14px; }
a { color: var(--primary); text-decoration: none; }
h2 { font-size: 16px; } h3 { font-size: 14px; margin: 12px 0 8px; }
code { background: var(--bg); padding: 1px 5px; border-radius: 3px; }
.muted { color: var(--muted); font-size: 12px; }
.pre { white-space: pre-wrap; word-break: break-all; max-width: 280px; }
.empty { text-align: center; color: var(--muted); padding: 24px !important; }
.spacer { flex: 1; }
.text-red { color: var(--red); } .text-green { color: var(--green); }

/* 布局 */
.shell { display: flex; min-height: 100vh; }
.sider { width: 200px; background: var(--card); border-right: 1px solid var(--border); padding: 16px 0; flex-shrink: 0; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { font-weight: 700; font-size: 15px; padding: 0 18px 16px; border-bottom: 1px solid var(--border); margin-bottom: 10px; }
.nav-item { display: flex; align-items: center; gap: 8px; padding: 9px 18px; color: var(--text); font-size: 13px; }
.nav-item:hover { background: var(--bg); }
.nav-item.active { background: var(--primary); color: #fff; }
.nav-item.active .nav-dot { background: #fff; }
.nav-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); flex-shrink: 0; }
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar { display: flex; align-items: center; gap: 10px; background: var(--card); padding: 10px 20px; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.crumb { font-weight: 600; }
.user-chip { font-size: 12px; color: var(--muted); }
.content { padding: 18px 20px; flex: 1; }
.footer { text-align: center; color: var(--muted); font-size: 12px; padding: 14px; }
#menuToggle { display: none; }

/* 卡片 */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 16px; margin-bottom: 16px; box-shadow: var(--shadow); }
.card.narrow { max-width: 560px; }
.card-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* 按钮 */
.btn { display: inline-block; padding: 7px 14px; border: 1px solid var(--border); background: var(--card); color: var(--text); border-radius: 6px; cursor: pointer; font-size: 13px; font-family: inherit; }
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-d); color: #fff; }
.btn.danger { color: var(--red); border-color: var(--red); background: transparent; }
.btn.danger:hover { background: var(--red); color: #fff; }
.btn.small { padding: 4px 9px; font-size: 12px; }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.block { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* 表单 */
.form .field { display: block; margin-bottom: 12px; }
.form .field > span { display: block; margin-bottom: 4px; font-size: 13px; }
.req { color: var(--red); font-style: normal; }
input, select, textarea { width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--card); color: var(--text); font-size: 13px; font-family: inherit; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); }
.form.inline { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.form.inline input, .form.inline select { width: auto; }
.form-ops { display: flex; gap: 8px; margin-top: 14px; }
.check { display: flex; align-items: center; gap: 6px; margin: 8px 0; font-size: 13px; }
.check input { width: auto; }
.search { display: flex; gap: 6px; }
.search input, .search select { width: auto; }

/* 表格 */
.table-wrap { overflow-x: auto; }
.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th, .tbl td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; }
.tbl th { background: var(--bg); font-weight: 600; white-space: nowrap; }
.tbl th.sortable { padding: 0; cursor: pointer; }
.tbl th.sortable a { display: block; padding: 8px 10px; color: inherit; text-decoration: none; }
.tbl th.sortable a:hover { background: var(--hover); }
.tbl th.sortable.active a { color: var(--primary); font-weight: 700; }
.tbl tr:hover td { background: var(--bg); }
.tbl .ops { white-space: nowrap; }
.tbl .ops .btn { margin-right: 4px; }
.row-warn td { background: rgba(217, 79, 61, .06); }

/* 标签 */
.tag { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; background: var(--bg); color: var(--muted); margin-right: 3px; }
.tag.green { background: rgba(46, 158, 91, .12); color: var(--green); }
.tag.red { background: rgba(217, 79, 61, .12); color: var(--red); }
.tag.orange { background: rgba(232, 150, 60, .12); color: var(--orange); }
.tag.blue { background: rgba(61, 133, 198, .12); color: var(--primary); }
.tag.gold { background: rgba(201, 162, 39, .14); color: var(--gold); }

/* 统计卡 */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: 8px; padding: 16px; text-align: center; box-shadow: var(--shadow); }
.stat em { display: block; font-style: normal; font-size: 26px; font-weight: 700; color: var(--primary); }
.stat.warn em { color: var(--orange); }
.stat span { font-size: 12px; color: var(--muted); }

/* 提示 */
.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 12px; font-size: 13px; }
.alert.ok { background: rgba(46, 158, 91, .1); color: var(--green); }
.alert.err { background: rgba(217, 79, 61, .1); color: var(--red); }

/* 分页 */
.pager { display: flex; gap: 6px; align-items: center; margin-top: 12px; flex-wrap: wrap; }

/* 页签切换 */
.tabs { display: flex; gap: 4px; margin-bottom: 14px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.tabs .tab { padding: 8px 18px; font-size: 13px; color: var(--text); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs .tab:hover { color: var(--primary); }
.tabs .tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }

/* 列表筛选条 */
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; align-items: center; }
.filters select { padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px; background: var(--card); color: var(--text); font-size: 13px; }

/* 通用小组件 */
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; background: var(--primary); color: #fff; font-size: 12px; font-weight: 400; }
.badge.off { background: var(--muted); }
.link { color: var(--primary); text-decoration: none; }
.link:hover { text-decoration: underline; }
.toolbar { display: flex; gap: 8px; margin: 14px 0; flex-wrap: wrap; }
.kv { display: flex; gap: 18px; flex-wrap: wrap; padding: 0 4px 4px; color: var(--text); font-size: 13px; }
.kv b { color: var(--muted); font-weight: 400; margin-right: 4px; }
.grade-block { margin-bottom: 16px; }
.grade-block h3 { font-size: 15px; margin: 0; }
.grade-block h3 .muted { margin-left: 6px; font-size: 12px; }
.grade-block h3 .badge { margin-left: 6px; }
.class-head .card-head { margin-bottom: 6px; }
.grade-head .card-head { margin-bottom: 6px; }
.school-head .card-head { margin-bottom: 6px; }
.card-foot { text-align: right; padding: 8px 4px 2px; }
.autogen { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; margin: 8px 0 4px; font-size: 12px; color: var(--muted); }
.autogen input { width: auto; padding: 4px 6px; }
/* 导入校验结果 */
#mImport .modal-box { max-width: 640px; }
.imp-err { margin: 8px 0; padding: 8px 12px; border-left: 3px solid #e14c4c; background: rgba(225, 76, 76, .08); border-radius: 6px; font-size: 12px; color: var(--text); }
.imp-err ul { margin: 4px 0 0; padding-left: 18px; }
.imp-err li { margin: 2px 0; }

/* 面包屑 */
.crumbs { font-size: 13px; color: var(--muted); margin: 8px 0 10px; display: flex; align-items: center; flex-wrap: wrap; gap: 4px; }
.crumbs a { color: var(--primary); text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.crumbs .sep { color: var(--border); margin: 0 4px; }
.crumbs span:last-child { color: var(--text); font-weight: 600; }

/* 弹窗 */
.modal { display: none; position: fixed; inset: 0; background: rgba(0, 0, 0, .4); z-index: 100; align-items: center; justify-content: center; padding: 16px; }
.modal.open { display: flex; }
.modal-box { background: var(--card); border-radius: 10px; padding: 20px; width: 100%; max-width: 480px; max-height: 90vh; overflow-y: auto; }
.modal-box h3 { margin: 0 0 12px; }

/* 登录页 */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { background: var(--card); padding: 36px; border-radius: 12px; width: 340px; box-shadow: var(--shadow); }
.login-box h1 { font-size: 20px; text-align: center; margin-bottom: 4px; }
.login-box .muted { text-align: center; display: block; margin-bottom: 18px; }
.login-box input { margin-bottom: 12px; }
.captcha-row { display: flex; gap: 8px; }
.captcha-row img { height: 36px; border-radius: 6px; cursor: pointer; }

/* 错误页 */
.err-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.err-box { text-align: center; }
.err-box h1 { font-size: 56px; color: var(--primary); }
.err-box p { margin: 10px 0 18px; color: var(--muted); }

/* 消息 */
.msg-compose { display: flex; gap: 8px; align-items: flex-start; margin-bottom: 16px; flex-wrap: wrap; }
.msg-compose select { width: auto; }
.msg-item { border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; margin-bottom: 10px; }
.msg-item.announce { border-left: 3px solid var(--primary); }
.msg-item.mine { background: var(--bg); }
.msg-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 6px; }
.msg-body { line-height: 1.6; }

/* 素材 */
.file-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.file-card { display: flex; flex-direction: column; gap: 4px; border: 1px solid var(--border); border-radius: 8px; padding: 10px; color: var(--text); }
.file-card:hover { border-color: var(--primary); }
.file-card img { width: 100%; height: 90px; object-fit: cover; border-radius: 6px; }
.file-ext { height: 90px; display: flex; align-items: center; justify-content: center; background: var(--bg); border-radius: 6px; font-weight: 700; color: var(--muted); }

/* 宠物 */
.pet-card { text-align: center; }
.pet-visual { padding: 12px 0; }
.pet-bars { text-align: left; margin-top: 8px; }
.bar-row { display: flex; align-items: center; gap: 8px; margin: 8px 0; font-size: 12px; }
.bar-row span { width: 48px; color: var(--muted); }
.bar-row em { font-style: normal; width: 60px; text-align: right; }
.bar { flex: 1; height: 8px; background: var(--bg); border-radius: 4px; overflow: hidden; }
.bar i { display: block; height: 100%; background: var(--primary); border-radius: 4px; transition: width .4s; }

/* 勋章商城 */
.medal-wall { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 14px; }
.medal-item { display: flex; flex-direction: column; align-items: center; gap: 3px; width: 110px; text-align: center; font-size: 12px; }
.shop-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; margin-bottom: 14px; }
.shop-item { border: 1px solid var(--border); border-radius: 8px; padding: 12px; display: flex; flex-direction: column; gap: 6px; font-size: 13px; }
.shop-item span { color: var(--muted); font-size: 12px; }
.hw-content { background: var(--bg); border-radius: 6px; padding: 12px; line-height: 1.7; margin-top: 8px; }

canvas { max-width: 100%; }

/* 响应式：平板/手机 */
@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
  .sider { position: fixed; left: -200px; z-index: 50; transition: left .25s; }
  .sider.open { left: 0; }
  #menuToggle { display: inline-block; }
  .content { padding: 12px; }
  .msg-compose textarea { width: 100%; flex: none; }
}