:root {
  --primary: #f5a623;
  --primary-2: #f97316;
  --violet: #8b5cf6;
  --bg-0: #fbf3d6;
  --panel: rgba(255, 255, 255, 0.62);
  --panel-solid: #fffdf6;
  --panel-soft: rgba(255, 255, 255, 0.45);
  --text: #3a2f1a;
  --muted: #927c4f;
  --line: rgba(245, 166, 35, 0.30);
  --glow: 0 0 0 1px rgba(245, 166, 35, 0.18), 0 10px 28px rgba(180, 120, 0, 0.10);
  --danger: #e0536b;
  --warn: #e08a1e;
  --ok: #2faa6a;
  --radius: 16px;
  --mono: "SFMono-Regular", Consolas, "Roboto Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg-0);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  color-scheme: light;
  min-height: 100vh;
}
/* 淡黄科技背景：暖色径向辉光 + 缓慢流动的网格 */
body::before {
  content: ''; position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(1100px 560px at 50% -12%, rgba(245, 166, 35, 0.18), transparent 60%),
    radial-gradient(900px 520px at 112% 8%, rgba(139, 92, 246, 0.14), transparent 60%),
    linear-gradient(180deg, #fff8e6 0%, #fdf2d2 60%, #faefce 100%);
}
body::after {
  content: ''; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(200, 150, 40, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200, 150, 40, 0.06) 1px, transparent 1px);
  background-size: 42px 42px;
  -webkit-mask-image: radial-gradient(circle at 50% 28%, #000 0%, transparent 80%);
          mask-image: radial-gradient(circle at 50% 28%, #000 0%, transparent 80%);
  animation: gridmove 22s linear infinite;
}
@keyframes gridmove { from { background-position: 0 0; } to { background-position: 42px 42px; } }

#app { max-width: 1100px; margin: 0 auto; min-height: 100vh; position: relative; }

/* 顶栏 */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; background: rgba(255, 250, 235, 0.72);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line); box-shadow: 0 6px 24px rgba(180, 120, 0, 0.10);
  position: sticky; top: 0; z-index: 20;
}
.brand { font-weight: 800; font-size: 18px; letter-spacing: .5px; display: flex; align-items: center; gap: 10px;
  background: linear-gradient(90deg, #f5a623, #8b5cf6); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand .logo { width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; font-size: 16px; color: #fff; font-weight: 800;
  background: linear-gradient(135deg, #f5a623, #f97316); box-shadow: 0 0 18px rgba(245, 166, 35, 0.55); }
.topbar .user { color: var(--muted); font-size: 13px; }

/* 布局 */
.layout { display: flex; align-items: flex-start; }
.sidebar { width: 210px; flex: none; padding: 18px 10px; position: sticky; top: 64px; display: flex; flex-direction: column; gap: 6px; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 11px 14px; border-radius: 11px; color: var(--muted); cursor: pointer; font-weight: 500; user-select: none; border: 1px solid transparent; transition: .18s; }
.nav-item:hover { color: var(--text); background: rgba(245, 166, 35, 0.10); }
.nav-item.active { color: #fff; background: linear-gradient(135deg, #f5a623, #f97316); border-color: rgba(245, 166, 35, 0.6); box-shadow: 0 0 18px rgba(245, 166, 35, 0.35); }
.nav-item .ic { width: 20px; text-align: center; }
.content { flex: 1; padding: 18px; min-width: 0; }
.bottom-nav { display: none; }

/* 卡片 / 通用 */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--glow); padding: 16px; margin-bottom: 16px;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.card h3 { margin: 0 0 12px; font-size: 16px; display: flex; align-items: center; justify-content: space-between; letter-spacing: .3px; }
.muted { color: var(--muted); }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.spread { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.btn { border: 1px solid var(--line); background: rgba(255, 255, 255, 0.5); color: var(--text); padding: 9px 14px; border-radius: 10px; cursor: pointer; font-size: 14px; transition: .18s; font-weight: 500; }
.btn:hover { border-color: var(--primary); color: #b76e00; box-shadow: 0 0 14px rgba(245, 166, 35, 0.22); }
.btn-primary { background: linear-gradient(135deg, #f5a623, #f97316); border-color: transparent; color: #fff; font-weight: 700; }
.btn-primary:hover { color: #fff; box-shadow: 0 0 22px rgba(245, 166, 35, 0.5); filter: brightness(1.05); }
.btn-danger { color: var(--danger); border-color: rgba(224, 83, 107, 0.4); }
.btn-danger:hover { color: var(--danger); box-shadow: 0 0 14px rgba(224, 83, 107, 0.25); }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.empty { text-align: center; color: var(--muted); padding: 30px 0; }

/* 概览：大框 + 2x2 计数 */
.stat-board { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--glow); padding: 16px; margin-bottom: 16px;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.stat-board-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.stat-board-head .t { font-size: 16px; font-weight: 700; background: linear-gradient(90deg, #f5a623, #8b5cf6); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-board-head .s { font-size: 12px; color: var(--muted); }
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.stat { background: rgba(255, 255, 255, 0.55); border: 1px solid var(--line); border-radius: 14px; padding: 16px; box-shadow: 0 4px 14px rgba(180, 120, 0, 0.06); cursor: pointer; transition: .18s; }
.stat:hover { transform: translateY(-2px); border-color: rgba(245, 166, 35, 0.55); box-shadow: 0 8px 22px rgba(245, 166, 35, 0.18); }
.stat .num { font-size: 30px; font-weight: 800; color: #e08a00; font-family: var(--mono); text-shadow: 0 0 14px rgba(245, 166, 35, 0.35); }
.stat .label { color: var(--text); font-size: 13px; margin-top: 4px; font-weight: 600; }
.stat .sub { font-size: 12px; color: var(--muted); margin-top: 6px; }

/* 列表项 */
.item { display: flex; align-items: center; gap: 12px; padding: 12px 4px; border-bottom: 1px solid rgba(180, 130, 40, 0.12); }
.item:last-child { border-bottom: none; }
.item .main { flex: 1; min-width: 0; }
.item .title { font-weight: 600; }
.item .meta { color: var(--muted); font-size: 13px; margin-top: 2px; }
.tag { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 12px; background: rgba(245, 166, 35, 0.14); color: #b76e00; margin-right: 6px; border: 1px solid rgba(245, 166, 35, 0.30); }
.tag.warn { background: rgba(224, 138, 30, 0.14); color: var(--warn); border-color: rgba(224, 138, 30, 0.32); }
.tag.danger { background: rgba(224, 83, 107, 0.14); color: var(--danger); border-color: rgba(224, 83, 107, 0.35); }
.tag.ok { background: rgba(47, 170, 106, 0.14); color: var(--ok); border-color: rgba(47, 170, 106, 0.32); }

/* 日历 */
.cal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.cal-cell { aspect-ratio: 1 / 0.9; border: 1px solid rgba(180, 130, 40, 0.16); border-radius: 8px; padding: 6px; font-size: 13px; cursor: pointer; background: rgba(255, 255, 255, 0.45); overflow: hidden; transition: .15s; color: var(--text); }
.cal-cell:hover { border-color: rgba(245, 166, 35, 0.5); }
.cal-cell.dim { background: transparent; color: var(--muted); }
.cal-cell.today { border-color: var(--primary); box-shadow: inset 0 0 12px rgba(245, 166, 35, 0.25); }
.cal-cell.sel { background: rgba(245, 166, 35, 0.18); border-color: rgba(245, 166, 35, 0.6); }
.cal-cell .d { font-weight: 600; }
.cal-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--primary); display: inline-block; margin: 1px; box-shadow: 0 0 6px var(--primary); }

/* 表单 / 弹窗 */
#modal-root:empty { display: none; }
.modal-backdrop { position: fixed; inset: 0; background: rgba(80, 60, 20, .35); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); display: grid; place-items: center; z-index: 50; padding: 16px; }
.modal { background: rgba(255, 251, 240, 0.96); border: 1px solid var(--line); border-radius: 18px; padding: 20px; width: 100%; max-width: 440px; max-height: 90vh; overflow: auto; box-shadow: var(--glow); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.modal h3 { margin: 0 0 16px; background: linear-gradient(90deg, #f5a623, #8b5cf6); -webkit-background-clip: text; background-clip: text; color: transparent; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; font-size: 14px; font-family: inherit; background: rgba(255, 255, 255, 0.7); color: var(--text); transition: .15s; }
.form-group input::placeholder, .form-group textarea::placeholder { color: #b3a074; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.18), 0 0 16px rgba(245, 166, 35, 0.2); }
.form-group select option { background: #fffdf6; color: var(--text); }
.form-group textarea { min-height: 70px; resize: vertical; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 8px; }

/* Toast */
#toast { position: fixed; left: 50%; bottom: 80px; transform: translateX(-50%); z-index: 100; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; }
.toast-msg { background: rgba(255, 251, 240, 0.97); color: var(--text); padding: 10px 16px; border-radius: 10px; font-size: 14px; border: 1px solid var(--line); box-shadow: var(--glow); animation: pop .2s; }
@keyframes pop { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* 认证页 */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.auth-card { width: 100%; max-width: 380px; border-radius: 20px; padding: 30px; position: relative; overflow: hidden;
  background: rgba(255, 251, 240, 0.78); border: 1px solid var(--line);
  box-shadow: 0 0 30px rgba(245, 166, 35, 0.18), inset 0 0 40px rgba(245, 166, 35, 0.05);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
.auth-card::before { content: ''; position: absolute; inset: -1px; border-radius: 21px; padding: 1px;
  background: linear-gradient(135deg, rgba(245, 166, 35, 0.7), rgba(139, 92, 246, 0.3), rgba(245, 166, 35, 0.7));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); mask-composite: exclude; pointer-events: none; }
.auth-card h2 { margin: 0 0 4px; font-size: 22px; letter-spacing: .5px; position: relative;
  background: linear-gradient(90deg, #f5a623, #8b5cf6); -webkit-background-clip: text; background-clip: text; color: transparent; }
.auth-card .desc { color: var(--muted); font-size: 13px; margin-bottom: 20px; position: relative; }
.auth-help { color: var(--muted); font-size: 12.5px; margin-bottom: 16px; line-height: 1.55; position: relative; }
.tabs { display: flex; gap: 8px; margin-bottom: 18px; position: relative; }
.tab { flex: 1; text-align: center; padding: 9px; border-radius: 10px; cursor: pointer; background: rgba(255, 255, 255, 0.5); color: var(--muted); font-weight: 500; border: 1px solid transparent; transition: .15s; position: relative; }
.tab:hover { color: var(--text); }
.tab.active { background: linear-gradient(135deg, #f5a623, #f97316); color: #fff; border-color: rgba(245, 166, 35, 0.5); box-shadow: 0 0 16px rgba(245, 166, 35, 0.3); }
.auth-card .form-group, .auth-card .btn { position: relative; }

/* 移动端适配 */
/* 缩略图 / 附件 */
.thumb-row { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 6px; }
.thumb-grid { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.thumb-grid:empty { display: none; }
.thumb-wrap { position: relative; display: inline-block; }
.thumb { display: block; width: 60px; height: 60px; border-radius: 10px; overflow: hidden; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.5); box-shadow: 0 2px 8px rgba(180, 120, 0, 0.10); }
.thumb img, .thumb video { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumb.doc-thumb { display: flex; align-items: center; justify-content: center; font-size: 26px; }
.thumb-x { position: absolute; top: -6px; right: -6px; width: 18px; height: 18px; line-height: 16px; text-align: center; border-radius: 50%; border: none; background: var(--danger); color: #fff; font-size: 12px; cursor: pointer; padding: 0; }

/* 考试成绩 */
.exam-item { border: 1px solid var(--line); border-radius: 12px; padding: 14px; margin-bottom: 12px; background: rgba(255, 255, 255, 0.4); }
.exam-item .title { font-weight: 700; font-size: 15px; }
.exam-item .meta { color: var(--muted); font-size: 13px; margin-top: 2px; }

/* 概览考试成绩预览 */
.exam-preview { border: 1px solid var(--line); border-radius: 12px; padding: 14px; margin-bottom: 12px; background: rgba(255, 255, 255, 0.4); display: flex; align-items: center; gap: 12px; }
.exam-preview .main { flex: 1; min-width: 0; }
.exam-preview .title { font-weight: 700; font-size: 15px; }
.exam-preview .meta { color: var(--muted); font-size: 13px; margin-top: 2px; }
.exam-preview .total-line { margin-top: 6px; font-size: 14px; color: var(--text); }
.exam-preview .total-line b { color: #e08a00; font-family: var(--mono); font-size: 16px; }

/* 成绩详情页 */
.exam-detail-head { font-size: 15px; font-weight: 600; margin-bottom: 6px; }

/* 事务完成情况 */
.comp { display: flex; align-items: center; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
.comp-badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; border: 1px solid transparent; }
.comp-badge.comp-已完成 { background: rgba(47, 170, 106, 0.16); color: var(--ok); border-color: rgba(47, 170, 106, 0.32); }
.comp-badge.comp-部分完成 { background: rgba(224, 138, 30, 0.16); color: var(--warn); border-color: rgba(224, 138, 30, 0.32); }
.comp-badge.comp-无法完成 { background: rgba(224, 83, 107, 0.16); color: var(--danger); border-color: rgba(224, 83, 107, 0.35); }
.comp-time { font-size: 12px; color: var(--muted); }
.comp-note { font-size: 13px; color: var(--text); margin-top: 4px; }
.subj-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; margin-top: 12px; }
.subj { display: flex; flex-direction: column; gap: 2px; padding: 8px 10px; border-radius: 10px; background: rgba(255, 255, 255, 0.5); border: 1px solid var(--line); }
.subj .sn { font-size: 12px; color: var(--muted); }
.subj .ss { font-size: 17px; font-weight: 800; color: #e08a00; font-family: var(--mono); }
.subj .sr { font-size: 12px; color: var(--text); }
.att-label { margin: 12px 0 4px; font-size: 13px; font-weight: 600; color: var(--muted); }

/* 考试编辑表格 */
.exam-edit-grid { display: grid; grid-template-columns: 1fr; gap: 8px; margin: 4px 0 8px; }
.exam-subj { display: grid; grid-template-columns: 88px 1fr 1fr; align-items: center; gap: 6px; }
.exam-subj .es-label { font-size: 13px; color: var(--text); }
.exam-subj .es-score, .exam-subj .es-rank { width: 100%; padding: 7px 9px; border: 1px solid var(--line); border-radius: 8px; font-size: 13px; background: rgba(255, 255, 255, 0.7); color: var(--text); }
.exam-subj .es-score:focus, .exam-subj .es-rank:focus { outline: none; border-color: var(--primary); }
@media (min-width: 560px) { .exam-edit-grid { grid-template-columns: 1fr 1fr; } }

/* 模态框内容可滚动 */
.modal-body { max-height: 64vh; overflow: auto; padding-right: 4px; }

@media (max-width: 720px) {
  .sidebar { display: none; }
  .content { padding: 14px 12px 80px; }
  #app { max-width: 100%; }
  .bottom-nav { display: flex; position: fixed; bottom: 0; left: 0; right: 0; background: rgba(255, 250, 235, 0.9); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border-top: 1px solid var(--line); box-shadow: 0 -4px 18px rgba(180, 120, 0, .12); z-index: 30; justify-content: space-around; padding: 6px 0 env(safe-area-inset-bottom); }
  .bn-item { flex: 1; text-align: center; padding: 6px 0; color: var(--muted); font-size: 11px; cursor: pointer; transition: .15s; }
  .bn-item.active { color: #e08a00; text-shadow: 0 0 10px rgba(245, 166, 35, 0.5); }
  .bn-item .ic { font-size: 20px; display: block; }
}