:root{
  --brand:#C46B4F; --gold:#C9A24B; --green:#8A9A82; --paper:#FBF7F1; --ink:#211C17;
  --line:#ece3d8; --bg:#f6f1ea;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg)}
.hidden{display:none!important}
.err{color:#c0392b;padding:12px}
.hint{color:#8a7d6d;font-size:13px;margin:8px 0}
.ok{color:#2e7d32}
.warn{color:#b9770e}
button{cursor:pointer;border:1px solid var(--line);background:#fff;color:var(--ink);padding:7px 12px;border-radius:8px;font-size:14px}
button.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
button.danger{border-color:#e0a9a0;color:#c0392b}
input,textarea{font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:8px;width:100%;background:#fff;color:var(--ink)}
.login-wrap{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#f6f1ea,#efe6da)}
.login-card{width:320px;background:#fff;border-radius:18px;padding:32px 28px;box-shadow:0 12px 40px rgba(33,28,23,.12);text-align:center}
.login-card .brand{font-size:28px;font-weight:700;color:var(--brand);letter-spacing:2px}
.login-card .brand-sub{color:#8a7d6d;font-size:13px;margin:6px 0 22px}
.login-card input{margin-bottom:12px}
.login-card button{width:100%;margin-top:6px;padding:10px}
.app{display:flex;min-height:100vh}
.sidebar{width:200px;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:16px 12px}
.sidebar .logo{font-size:20px;font-weight:700;color:var(--brand);padding:6px 8px 16px}
.sidebar nav a{display:block;padding:9px 12px;border-radius:9px;color:var(--ink);text-decoration:none;font-size:14px;margin-bottom:2px}
.sidebar nav a:hover{background:var(--paper)}
.sidebar nav a.active{background:var(--brand);color:#fff}
.sidebar .logout{margin-top:auto;border-color:var(--line);color:#8a7d6d}
.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{height:56px;display:flex;align-items:center;padding:0 22px;border-bottom:1px solid var(--line);font-weight:600;background:#fff}
.content{padding:22px;overflow:auto}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:14px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;text-align:center}
.card .num{font-size:30px;font-weight:700;color:var(--brand)}
.card .t{color:#8a7d6d;font-size:13px;margin-top:4px}
.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.toolbar input{max-width:240px}
.tbl{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.tbl th,.tbl td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line);font-size:14px;vertical-align:top}
.tbl th{background:var(--paper);font-weight:600;color:#6b5d4d}
.tbl tr:last-child td{border-bottom:none}
.pager{margin-top:12px;color:#8a7d6d;font-size:13px}
.form{display:flex;flex-direction:column;gap:14px;max-width:420px}
.form label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:#6b5d4d}
.modal-mask{position:fixed;inset:0;background:rgba(33,28,23,.45);display:flex;align-items:center;justify-content:center;z-index:50}
.modal{width:560px;max-width:92vw;max-height:88vh;overflow:auto;background:#fff;border-radius:16px;padding:20px}
.modal-h{font-size:17px;font-weight:700;margin-bottom:14px}
.modal-b textarea{width:100%;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}
.modal-f{display:flex;gap:10px;justify-content:flex-end;margin-top:16px}
.loading{color:#8a7d6d;padding:20px}
@media(max-width:720px){ .sidebar{width:140px} }

/* 用户课程权限后台新增样式 */
.badge{display:inline-block;padding:2px 10px;border-radius:10px;font-size:12px}
.badge.ok{background:#e6f4ea;color:#2e7d32}
.badge.off{background:#fdecea;color:#c0392b}
.quick{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.quick button{background:#fff}
label.chk{flex-direction:row;align-items:center;gap:8px}
label.chk input{width:auto}
select{font:inherit;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;max-width:100%}

/* 用户资料补全新增样式 */
.u-avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;vertical-align:middle}
.form.two{display:flex;flex-wrap:wrap;gap:10px}
.form.two label{width:calc(50% - 10px)}