/* 子由教育信息管理系统 · 视觉令牌取自线上系统（暖橙 #ff7e3d / 底色 #fff7f0 / 边框 #efe8e1） */
:root {
  --primary: #ff7e3d;
  --primary-hover: #f56b25;
  --primary-soft: #ffedd5;
  --bg: #fff7f0;
  --card: #ffffff;
  --fg: #312b26;
  --fg-2: #39332d;
  --muted: #f6efea;
  --muted-fg: #7c726a;
  --border: #efe8e1;
  --secondary: #faf2eb;
  --success: #2ac6b6;
  --danger: #ff5c5c;
  --warning: #fcbb00;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 4px 16px rgba(255, 85, 0, .08), 0 2px 6px -2px rgba(255, 85, 0, .05);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
h1, h2, h3, h4 { margin: 0; font-weight: 600; color: var(--fg); }

/* ---------- 登录页 ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 32px 20px 48px;
  background:
    radial-gradient(60% 55% at 0% 0%, #ffd7a8 0%, rgba(255, 215, 168, 0) 70%),
    radial-gradient(55% 45% at 48% 0%, #fff1c9 0%, rgba(255, 241, 201, 0) 65%),
    radial-gradient(55% 55% at 100% 100%, #cdeee8 0%, rgba(205, 238, 232, 0) 70%),
    radial-gradient(45% 40% at 10% 95%, #ffe0e6 0%, rgba(255, 224, 230, 0) 70%),
    var(--bg);
}
.login-logo { width: 168px; height: auto; display: block; }
.login-title { font-size: 34px; letter-spacing: 4px; margin: 18px 0 2px; }
.login-en { font-size: 13px; letter-spacing: 3px; color: var(--muted-fg); text-transform: uppercase; }
.login-sub { font-size: 13px; color: var(--muted-fg); letter-spacing: 2px; margin-top: 10px; }
.login-card {
  width: 100%; max-width: 396px;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px 28px 22px;
  margin-top: 22px;
}
.login-card .field { margin-bottom: 16px; }
.login-card .btn-primary { margin-top: 6px; height: 46px; font-size: 15px; letter-spacing: 4px; }
.login-tip { margin-top: 18px; text-align: center; font-size: 12.5px; color: var(--muted-fg); line-height: 1.9; }
.login-foot { margin-top: 22px; text-align: center; font-size: 12px; color: #a79f97; }
.login-foot a { color: #a79f97; }

/* ---------- 表单元素 ---------- */
label.field-label, .field-label { display: block; font-size: 13px; color: var(--fg-2); margin-bottom: 6px; }
input[type=text], input[type=password], input[type=number], input[type=date], input[type=tel],
input[type=month], select, textarea {
  width: 100%; height: 40px; padding: 0 12px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: #fff; color: var(--fg); font-size: 14px; font-family: var(--font);
  outline: none; transition: border-color .15s, box-shadow .15s;
}
textarea { height: auto; padding: 10px 12px; resize: vertical; }
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 126, 61, .14);
}
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, #b7ada4 50%), linear-gradient(135deg, #b7ada4 50%, transparent 50%); background-position: calc(100% - 18px) 18px, calc(100% - 13px) 18px; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 32px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 38px; padding: 0 18px; border-radius: var(--radius-sm); border: 1px solid transparent;
  font-size: 14px; font-family: var(--font); cursor: pointer; transition: all .15s; white-space: nowrap; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { background: #fff; color: var(--fg-2); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { height: 30px; padding: 0 12px; font-size: 12.5px; border-radius: 6px; }
.btn-link { background: none; border: 0; color: var(--primary); cursor: pointer; font-size: 13px; padding: 0; }
.btn-link.danger { color: var(--danger); }
.w-full { width: 100%; }

/* ---------- 主框架 ---------- */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 232px; flex: 0 0 232px; background: var(--card); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; padding: 20px 14px; position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 8px 18px; }
.brand img { width: 38px; height: 38px; object-fit: contain; }
.brand-text b { display: block; font-size: 15px; letter-spacing: 1px; }
.brand-text span { font-size: 11.5px; color: var(--muted-fg); letter-spacing: .5px; }
.nav { display: flex; flex-direction: column; gap: 4px; }
.nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 10px; color: var(--fg-2); font-size: 14px;
}
.nav a:hover { background: var(--secondary); }
.nav a.active { background: var(--secondary); color: #f50; font-weight: 600; }
.nav .dot { width: 6px; height: 6px; border-radius: 50%; background: #d8cec5; flex: 0 0 6px; }
.nav a.active .dot { background: var(--primary); }
.sidebar-foot { margin-top: auto; padding: 12px 8px 0; font-size: 11.5px; color: #a79f97; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  height: 60px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; background: rgba(255, 247, 240, .85); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20;
}
.topbar h1 { font-size: 17px; }
.user-chip { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--muted-fg); }
.avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 600; }
.content { padding: 22px 24px 44px; }

/* ---------- 卡片 / 统计 ---------- */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; }
.card + .card { margin-top: 18px; }
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; gap: 12px; flex-wrap: wrap; }
.card-head h2 { font-size: 15px; }
.card-head .hint { font-size: 12.5px; color: var(--muted-fg); }
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.kpi { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow); }
.kpi .label { font-size: 13px; color: var(--muted-fg); }
.kpi .value { font-size: 28px; font-weight: 700; color: var(--primary); line-height: 1.3; margin-top: 6px; font-variant-numeric: tabular-nums; }
.kpi .unit { font-size: 13px; color: var(--muted-fg); margin-left: 4px; font-weight: 400; }
.kpi.alt .value { color: var(--success); }
.kpi.warn .value { color: var(--danger); }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; background: #fff; }
thead th {
  background: var(--secondary); color: var(--fg-2); font-weight: 600; font-size: 13px;
  text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); white-space: nowrap;
}
tbody td { padding: 11px 14px; border-bottom: 1px solid var(--border); font-size: 13.5px; vertical-align: middle; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #fffbf7; }
.num { font-variant-numeric: tabular-nums; }
.empty { padding: 28px 0; text-align: center; color: #b3a89f; font-size: 13px; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; line-height: 1.7; }
.badge.ok { background: rgba(42, 198, 182, .12); color: #17998c; }
.badge.warn { background: rgba(252, 187, 0, .16); color: #9a7400; }
.badge.bad { background: rgba(255, 92, 92, .12); color: #d63c3c; }
.badge.info { background: var(--primary-soft); color: #d9611f; }

/* ---------- 表单排版 ---------- */
.form-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px 16px; align-items: end; }
.form-grid > div { min-width: 0; }
.form-grid .span2 { grid-column: span 2; }
.form-actions { display: flex; gap: 10px; grid-column: 1 / -1; }
.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar form { display: flex; gap: 8px; align-items: center; }
.toolbar input[type=month], .toolbar input[type=text] { width: auto; }
.inline-form { display: inline; }

/* ---------- 提示 ---------- */
.flash { background: var(--primary-soft); color: #b9500f; border: 1px solid #ffd7b8; padding: 10px 14px; border-radius: 10px; margin-bottom: 14px; font-size: 13px; }
.section-title { font-size: 13px; color: var(--muted-fg); margin: 18px 0 8px; }

/* ---------- 家长端 ---------- */
.mobile-wrap { max-width: 720px; margin: 0 auto; padding: 18px 16px 40px; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .app { flex-direction: column; }
  .sidebar { width: 100%; flex: none; height: auto; position: relative; padding: 12px 12px 6px; border-right: 0; border-bottom: 1px solid var(--border); }
  .brand { padding-bottom: 10px; }
  .nav { flex-direction: row; overflow-x: auto; gap: 6px; padding-bottom: 6px; }
  .nav a { white-space: nowrap; padding: 8px 12px; background: #fff; border: 1px solid var(--border); }
  .sidebar-foot { display: none; }
  .content { padding: 16px 14px 40px; }
  .topbar { padding: 0 14px; height: 54px; }
  .kpis { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid .span2 { grid-column: span 2; }
  .kpi .value { font-size: 24px; }
  th, td { white-space: nowrap; }
  .table-wrap { -webkit-overflow-scrolling: touch; }
}
@media (max-width: 480px) {
  .kpis { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .span2 { grid-column: span 1; }
  .login-card { padding: 22px 18px; }
}