/* ============================================================
   师语 · 教师工作台 — 画风 v4「糖果渐变课堂」
   设计要点：教育产品经典风格（Kahoot/ClassDojo 式）
   · 大色块渐变成体系（蓝→紫主渐变，青/绿/橙/玫点缀）
   · 胶囊按钮 · 大圆角卡片 · 粗体排版 · 柔和 blob 背景
   ============================================================ */

:root {
  --bg: #f6f1e4;              /* 米白纸底 */
  --card: #fffcf4;            /* 奶白 */
  --panel: #efe8d6;
  --panel-2: #e4dbc4;
  --line: #e3d9bf;
  --line-strong: #c9bb9a;
  --text: #3d342a;            /* 墨棕 */
  --muted: #7d7261;
  --faint: #a49982;

  --primary: #453a2d;         /* 墨棕（主操作） */
  --primary-2: #33291e;
  --primary-soft: #f1e9d7;
  --primary-border: rgba(69, 58, 45, 0.35);
  --seal: #a94b3e;            /* 印章暗红（仅点缀） */

  --sky: #54637a;   --sky-soft: #e7eaf0;   /* 黛蓝 */
  --mint: #5e7d5a;  --mint-soft: #e9efe4;  /* 苔绿 */
  --sun: #b28a2e;   --sun-soft: #f5ecd6;   /* 赭黄 */
  --purple: #7a5f7d; --purple-soft: #eee9ef;
  --pink: #a4636f;  --pink-soft: #f5e6e9;  /* 豆沙 */
  --red: #a9564a;   --red-soft: #f4e1db;

  --ink: #3d342a;             /* 描边墨色 */
  --hard: 4px 4px 0 rgba(61, 52, 42, 0.12);
  --hard-btn: 3px 3px 0 rgba(61, 52, 42, 0.9);

  --radius: 16px;
  --radius-sm: 12px;
  --shadow: 0 6px 20px rgba(61, 52, 42, 0.08);
  --shadow-sm: 0 3px 10px rgba(61, 52, 42, 0.06);
  --pill: 999px;
  --btn-radius: 10px;
  --sidebar-w: 224px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-comic: "ZCOOL KuaiLe", "ZCOOL KuaiLe CN", "Kaiti SC", "STKaiti", "KaiTi", sans-serif;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 14.5px;
  color: var(--text);
  background:
    radial-gradient(760px 420px at 92% -6%, rgba(139, 92, 246, 0.09), transparent 60%),
    radial-gradient(660px 380px at -4% 28%, rgba(184, 67, 58, 0.09), transparent 60%),
    radial-gradient(520px 320px at 60% 110%, rgba(236, 72, 153, 0.05), transparent 60%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}
.hidden { display: none !important; }
button { font-family: inherit; }
::selection { background: rgba(184, 67, 58, 0.22); }

::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: rgba(101, 112, 134, 0.28); border-radius: 9px; }
::-webkit-scrollbar-thumb:hover { background: rgba(101, 112, 134, 0.45); }
::-webkit-scrollbar-track { background: transparent; }

/* ============================================================
   国风组件：书法字 / 印章 / 竖排
   ============================================================ */
.font-serif { font-family: var(--font-comic); }
.seal {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--seal); color: #fff6e4;
  font-family: var(--font-comic); font-weight: 700; letter-spacing: 3px;
  border-radius: 10px; padding: 7px 12px;
  box-shadow: inset 0 0 0 2px rgba(255, 246, 228, 0.35), 3px 3px 0 rgba(61, 52, 42, 0.5);
  flex-shrink: 0;
}
.v-text {
  writing-mode: vertical-rl;
  font-family: var(--font-comic);
  letter-spacing: 10px; line-height: 1.5;
  color: #6f675a;
}

/* ============================================================
   登录页 — 渐变沉浸式
   ============================================================ */
.login-wrap { min-height: 100vh; display: flex; }
.login-brand {
  flex: 1.15;
  background:
    repeating-linear-gradient(90deg, rgba(150, 122, 70, 0.045) 0 1px, transparent 1px 7px),
    repeating-linear-gradient(0deg, rgba(150, 122, 70, 0.035) 0 1px, transparent 1px 7px),
    radial-gradient(720px 420px at 18% 22%, rgba(184, 67, 58, 0.07), transparent 60%),
    #f7f1e2;
  display: flex; align-items: center; justify-content: center;
  padding: 48px;
  position: relative; overflow: hidden;
}
.login-brand-inner { max-width: 470px; position: relative; z-index: 1; }
.login-title { font-size: 44px; margin: 22px 0 10px; letter-spacing: 6px; color: var(--text); font-family: var(--font-comic); font-weight: 700; font-family: var(--font-comic); text-shadow: 0 2px 8px rgba(156,54,46,.18); }
.login-title span { color: #b8860b; margin: 0 6px; }
.login-deco {
  color: #8a7f6c; font-size: 13px; letter-spacing: 3px;
  border-top: 1px solid #d8cbaa; padding-top: 16px;
}
.login-sub { color: #6f675a; font-size: 15.5px; margin: 0 0 24px; }
/* 登录页大字书法 */
.login-brand-inner { display: flex; align-items: center; gap: 34px; }
.login-seal {
  width: 92px; height: 92px; border-radius: 16px; flex-shrink: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: var(--seal); color: #fff6e4;
  font-family: var(--font-comic); font-size: 32px; letter-spacing: 4px;
  border: 2.5px solid var(--ink);
  box-shadow: 5px 5px 0 rgba(61,52,42,.75);
}
.login-core { min-width: 0; }


.login-panel { flex: 1; display: flex; align-items: center; justify-content: center; padding: 32px; }
.login-card {
  width: 100%; max-width: 420px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 42px 38px 30px;
  box-shadow: 0 24px 70px rgba(37, 99, 235, 0.18);
}
.login-card h2 { margin: 0 0 6px; font-size: 24px; font-weight: 800; }
.login-hint { color: var(--muted); margin: 0 0 26px; font-size: 14px; }
.login-foot { color: var(--faint); font-size: 12.5px; text-align: center; margin: 18px 0 0; }
.login-foot a { color: var(--faint); text-decoration: none; transition: color .15s; }
.login-foot a:hover { color: var(--muted); text-decoration: underline; }
.icp-foot { margin: 6px 0 0; font-size: 12px; }

.field { display: block; margin-bottom: 15px; }
.field-label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 7px; font-weight: 600; }
.pwd-box { position: relative; display: block; }
.pwd-box input { padding-right: 44px; }
.pwd-eye {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: none; border: none; color: var(--faint); cursor: pointer; padding: 6px; border-radius: 8px;
}
.pwd-eye:hover { color: var(--text); background: var(--panel); }

/* 验证码行 */
.captcha-box { display: flex; gap: 10px; align-items: center; }
.captcha-box input { flex: 1; }
.captcha-img {
  flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  border-radius: 12px; overflow: hidden; cursor: pointer;
  border: 1.5px solid var(--line-strong);
  background: #f3ecdb;
  transition: border-color 0.15s;
}
.captcha-img:hover { border-color: var(--primary); }

input[type="text"], input[type="password"], input[type="date"], input[type="number"], input[type="time"],
select, textarea {
  width: 100%;
  background: var(--panel);
  border: 1.5px solid transparent;
  color: var(--text);
  border-radius: 14px;
  padding: 11px 14px;
  font-size: 14.5px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  background: var(--card);
  box-shadow: 0 0 0 4px rgba(184, 67, 58, 0.14);
}
input::placeholder, textarea::placeholder { color: var(--faint); }
textarea { resize: vertical; min-height: 84px; line-height: 1.6; }

.form-error {
  background: #fdecec;
  color: #8f4034;
  border: 1px solid rgba(184, 67, 58, 0.35);
  border-radius: 14px;
  padding: 9px 12px;
  font-size: 13px;
  margin: 0 0 14px;
}

/* ---------- 按钮系统（Ant/Balsamiq 规范：层次分明 + 六状态） ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent;
  border-radius: var(--btn-radius);
  padding: 11px 20px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.3px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s, transform 0.08s, filter 0.12s;
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--primary-border); outline-offset: 1px; }
.btn:active { transform: translateY(1px); filter: brightness(0.96); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--primary); color: #fdf8ec; border: 2px solid var(--ink); box-shadow: var(--hard-btn); }
.btn-primary:hover { background: var(--primary-2); }
.btn-primary:active { box-shadow: 1px 1px 0 rgba(61,52,42,.9); transform: translate(2px, 2px); }
.btn-outline { background: var(--card); color: var(--text); border: 2px solid var(--ink); box-shadow: 2px 2px 0 rgba(61,52,42,.35); }
.btn-outline:hover { background: var(--primary-soft); }
.btn-outline:active { box-shadow: none; transform: translate(2px, 2px); }
.btn-ghost { background: var(--panel); color: var(--muted); border: 1px solid var(--line-strong); }
.btn-ghost:hover { background: var(--panel-2); color: var(--text); }
.btn-danger { background: var(--red-soft); color: #8f4034; border: 1.5px solid #b98a7e; }
.btn-danger:hover { background: #eed3ca; }
.btn-block { width: 100%; }
.btn-lg { padding: 14px 20px; font-size: 16px; letter-spacing: 6px; text-indent: 6px; border-radius: 12px; }
.btn-sm { padding: 6px 12px; font-size: 13px; border-radius: 8px; }

.btn-ghost-light {
  display: flex; align-items: center; gap: 9px;
  width: 100%;
  background: none; border: none;
  color: var(--muted);
  padding: 9px 12px;
  border-radius: 14px;
  cursor: pointer; font-size: 13.5px;
  transition: background 0.15s, color 0.15s;
}
.btn-ghost-light:hover { background: var(--panel); color: var(--text); }

/* ============================================================
   应用骨架
   ============================================================ */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--card);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
  padding: 18px 12px 14px;
  position: sticky; top: 0; height: 100vh;
  box-shadow: 8px 0 30px rgba(30, 50, 90, 0.05);
}
.brand {
  display: flex; align-items: center; gap: 11px;
  padding: 6px 8px 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 14px;
}
.brand-logo { display: flex; }
.brand .brand-logo { filter: none; }
.brand-text { line-height: 1.25; }
.brand-text b {
  font-size: 22px; letter-spacing: 3px; display: block;
  color: var(--text); font-family: var(--font-comic); font-weight: 700;
}
.brand-text span { font-size: 12px; color: var(--faint); }

.nav { display: flex; flex-direction: column; gap: 5px; flex: 1; }
.nav-item {
  border: 2px solid transparent;
  display: flex; align-items: center; gap: 11px;
  background: none; border: none;
  color: var(--muted);
  padding: 10px 13px;
  border-radius: 14px;
  cursor: pointer;
  font-size: 14.5px;
  font-weight: 500;
  text-align: left;
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}
.nav-item .nav-ico { width: 22px; height: 22px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.nav-item .nav-ico svg { width: 20px; height: 20px; }
.nav-item:hover { color: var(--text); background: var(--panel); }
.nav-item.active {
  color: #fdf8ec;
  background: var(--primary);
  font-weight: 700;
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 rgba(61, 52, 42, 0.5);
}

.sidebar-foot { border-top: 1px solid var(--line); padding-top: 6px; }
/* 底部用户区（Linear/Slack 式：整块可点击打开设置） */
.user-area {
  display: flex; align-items: center; gap: 10px;
  width: 100%;
  background: none; border: none;
  padding: 8px 10px;
  border-radius: 12px;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s;
}
.user-area:hover { background: var(--panel); }
.user-avatar {
  width: 34px; height: 34px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--primary-2); font-weight: 800; font-size: 14px;
  background: var(--primary-soft);
}
.u-info { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; flex: 1; }
.u-name { font-size: 14px; font-weight: 800; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.u-role { font-size: 11px; color: var(--faint); margin-top: 1px; }
.user-area > svg { color: var(--faint); margin-left: auto; flex-shrink: 0; }
.user-area:hover > svg { color: var(--muted); }
/* 退出登录（低调常驻，悬停淡红警示） */
.user-logout {
  display: flex; align-items: center; gap: 10px;
  width: 100%;
  background: none; border: none;
  padding: 8px 10px; margin-top: 2px;
  border-radius: 12px;
  cursor: pointer; text-align: left;
  color: var(--faint); font-size: 13.5px;
  transition: background 0.15s, color 0.15s;
}
.user-logout:hover { background: var(--red-soft); color: #8f4034; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 16px 26px 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(243, 237, 223, 0.92);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 30;
}
.topbar h1 {
  font-size: 22px; margin: 0; letter-spacing: 2px; font-weight: 800;
  font-family: var(--font-comic); color: var(--text);
}
.topbar-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.content { padding: 26px 30px 70px; flex: 1; }

/* ============================================================
   看板 — 糖果渐变卡
   ============================================================ */
.hero-band {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: 12px;
  padding: 22px 26px;
  box-shadow: var(--hard);
  margin-bottom: 18px;
  display: flex; align-items: center; gap: 16px;
  box-shadow: var(--shadow-sm);
  position: relative; overflow: hidden;
}
.hero-band::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--primary); }
.hero-mark {
  width: 48px; height: 48px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--seal); color: #fff6e4;
  font-family: var(--font-comic); font-size: 24px;
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 rgba(61,52,42,.8);
}
.hero-text h2 { margin: 0; font-size: 21px; font-family: var(--font-comic); font-weight: 700; letter-spacing: 1px; }
.hero-text p { margin: 3px 0 0; color: var(--muted); font-size: 13px; }
.hero-clock { margin-left: auto; text-align: right; }
.hero-clock #clock-line { font-size: 25px; font-weight: 800; color: var(--text); font-variant-numeric: tabular-nums; line-height: 1.1; }
.hero-clock span { color: var(--faint); font-size: 12px; letter-spacing: 4px; }

.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }
.stat-card {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: 12px;
  padding: 18px 20px;
  box-shadow: var(--hard);
  display: flex; align-items: center; gap: 14px;
  box-shadow: var(--shadow-sm);
}
.stat-ico {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 21px;
}
.stat-card.c1 .stat-ico { background: var(--primary-soft); }
.stat-card.c2 .stat-ico { background: var(--sky-soft); }
.stat-card.c3 .stat-ico { background: var(--mint-soft); }
.stat-card.c4 .stat-ico { background: var(--sun-soft); }
.stat-ico svg { width: 22px; height: 22px; }
.stat-card.c1 .stat-ico svg { color: var(--primary-2); }
.stat-card.c2 .stat-ico svg { color: #0277b5; }
.stat-card.c3 .stat-ico svg { color: #3c6b4a; }
.stat-card.c4 .stat-ico svg { color: #b45309; }
.stat-num { font-size: 26px; font-weight: 800; line-height: 1.15; color: var(--text); }
.stat-label { color: var(--muted); font-size: 12.5px; }

/* 今日天气（紧凑横条） */
.weather-flat { display: flex; align-items: center; gap: 12px; }
.weather-flat .w-icon { display: flex; }
.weather-flat .w-temp { font-size: 24px; font-weight: 800; line-height: 1.1; }
.weather-flat .w-desc { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.weather-flat .w-meta { color: var(--faint); font-size: 11.5px; margin-left: auto; }
.panel-flat { padding: 14px 18px; }

/* 今日课程时间线 */
.tl { display: flex; flex-direction: column; gap: 4px; }
.tl-row {
  display: flex; align-items: center; gap: 14px;
  padding: 11px 12px;
  border-radius: 12px;
  border: 1px solid transparent;
}
.tl-row:hover { background: var(--panel); }
.tl-row.tl-next { background: var(--primary-soft); border-color: rgba(184, 67, 58, 0.35); }
.tl-row.tl-ongoing { background: var(--mint-soft); border-color: rgba(74, 124, 89, 0.35); }
.tl-time { width: 52px; font-weight: 700; font-size: 15px; color: var(--text); flex-shrink: 0; }
.tl-main { flex: 1; min-width: 0; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tl-main b { font-size: 14.5px; }
.tl-cls {
  font-size: 11.5px; color: var(--primary-2);
  background: rgba(184, 67, 58, 0.1); border-radius: 7px; padding: 1px 7px;
}
.tl-room { color: var(--faint); font-size: 11.5px; }
.tl-label { color: var(--faint); font-size: 12px; flex-shrink: 0; }
.tl-state { flex-shrink: 0; font-size: 12px; font-weight: 600; }
.tl-state.st-on { color: #3c6b4a; }
.tl-state.st-up { color: var(--primary-2); }
.tl-state.st-done { color: var(--faint); }

/* 学生关注 */
.focus-block { padding: 4px 0 12px; }
.focus-block + .focus-block { border-top: 1px dashed var(--line-strong); padding-top: 12px; }
.fb-title { color: var(--muted); font-size: 12px; font-weight: 700; margin-bottom: 6px; letter-spacing: 0.5px; }

/* 工作台两列 */
.dash-cols { display: grid; grid-template-columns: 2.3fr 1fr; gap: 16px; align-items: start; }
.col-main, .col-side { display: flex; flex-direction: column; gap: 14px; }
.dash-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 14px; }
.panel {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: 12px;
  padding: 20px 22px;
  box-shadow: var(--hard);
}
.panel h3 { margin: 0 0 14px; font-size: 15.5px; font-weight: 700; display: flex; align-items: center; justify-content: space-between; }
.panel h3 .link-btn { font-size: 12.5px; color: var(--primary); cursor: pointer; background: none; border: none; padding: 0; font-weight: 500; }
.link-btn:hover { text-decoration: underline; }

.week-chart { display: flex; align-items: flex-end; gap: 10px; height: 150px; padding-top: 6px; }
.week-chart .bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; height: 100%; justify-content: flex-end; }
.week-chart .bar {
  width: 62%; max-width: 36px;
  background: var(--primary);
  border-radius: 9px 9px 5px 5px;
  min-height: 4px;
  transition: height 0.4s ease;
}
.week-chart .bar-label { font-size: 11.5px; color: var(--faint); }
.week-chart .bar-num { font-size: 12px; color: var(--muted); font-weight: 600; }

/* 今日天气 */
.weather-card { display: flex; align-items: center; gap: 18px; }
.weather-card .w-icon { font-size: 52px; line-height: 1; }
.weather-card .w-temp { font-size: 30px; font-weight: 800; line-height: 1.1; }
.weather-card .w-desc { color: var(--muted); font-size: 14px; margin-top: 2px; }
.weather-card .w-meta { color: var(--faint); font-size: 12px; margin-top: 4px; }

/* 下节课预备 */
.next-card .n-subject { font-size: 22px; font-weight: 800; margin-bottom: 8px; color: var(--text); }
.next-card .n-line { color: var(--muted); font-size: 13.5px; margin-top: 5px; display: flex; align-items: center; }
.n-state { display: inline-block; margin-top: 12px; border-radius: 999px; padding: 4px 14px; font-size: 13px; font-weight: 700; }
.n-state.n-ongoing { background: var(--mint-soft); color: #3c6b4a; }
.n-state.n-upcoming { background: var(--primary-soft); color: var(--primary-2); }
.n-state.n-nextday { background: var(--sun-soft); color: #b45309; }

.mini-list { display: flex; flex-direction: column; gap: 4px; }
.mini-item {
  display: flex; align-items: center; gap: 11px;
  padding: 10px 10px; border-radius: var(--radius-sm);
  transition: background 0.12s;
}
.mini-item:hover { background: var(--panel); }
.mini-item .grow { flex: 1; min-width: 0; }
.mini-item .t1 { font-size: 13.5px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mini-item .t2 { font-size: 12px; color: var(--faint); }
.mini-item .when { color: var(--faint); font-size: 12px; flex-shrink: 0; }
.empty-tip { color: var(--faint); text-align: center; padding: 26px 0; font-size: 13px; }

/* ============================================================
   通用页面元素
   ============================================================ */
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.page-head h2 { margin: 0; font-size: 16.5px; }
.page-head .sub { color: var(--faint); font-size: 13px; margin-top: 2px; }
.page-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.toolbar { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 18px; }
.toolbar select, .toolbar input { width: auto; }
.toolbar .spacer { flex: 1; }

.card {
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: 12px;
  box-shadow: var(--hard);
  padding: 20px 24px;
  margin-bottom: 16px;
}

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); box-shadow: var(--shadow-sm); }
table.data { width: 100%; border-collapse: collapse; font-size: 13.8px; min-width: 560px; }
table.data th {
  text-align: left; font-weight: 700; color: var(--muted);
  padding: 13px 16px; border-bottom: 1px solid var(--line-strong);
  background: var(--panel);
  white-space: nowrap;
}
table.data td { padding: 12px 16px; border-bottom: 1px solid var(--line); }
table.data tr:last-child td { border-bottom: none; }
table.data tbody tr { transition: background 0.12s; }
table.data tbody tr:hover { background: var(--panel); }
.td-actions { display: flex; gap: 6px; justify-content: flex-end; }

.tag { display: inline-flex; align-items: center; gap: 4px; border-radius: 999px; padding: 3px 11px; font-size: 12px; border: 1px solid transparent; white-space: nowrap; font-weight: 500; }
.tag-blue { background: var(--primary-soft); color: var(--primary-2); border-color: rgba(184, 67, 58, 0.35); }
.tag-green { background: #e5f8f1; color: #3c6b4a; border-color: rgba(74, 124, 89, 0.3); }
.tag-amber { background: #fef3e0; color: #b45309; border-color: rgba(184, 134, 11, 0.35); }
.tag-red { background: #fdecec; color: #8f4034; border-color: rgba(184, 67, 58, 0.3); }
.tag-gray { background: var(--panel); color: var(--muted); border-color: var(--line-strong); }
.tag-purple { background: #f1ebfe; color: #6d4fd3; border-color: rgba(139, 92, 246, 0.35); }
.tag-primary { background: var(--primary-soft); color: var(--primary-2); border-color: rgba(184, 67, 58, 0.35); }

/* ============================================================
   班级卡片 — 渐变色带顶边
   ============================================================ */
.class-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(252px, 1fr)); gap: 14px; }
.class-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  position: relative;
  overflow: hidden;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}
.class-card:hover { transform: translateY(-3px); border-color: rgba(184, 67, 58, 0.45); box-shadow: 0 14px 32px rgba(184, 67, 58, 0.18); }
.class-card .cc-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; margin-top: 4px; }
.class-avatar {
  width: 46px; height: 46px; border-radius: 14px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 17px; color: var(--primary-2);
  background: var(--primary-soft);
}
.class-card .cc-name { font-size: 16px; font-weight: 800; }
.class-card .cc-sub { color: var(--faint); font-size: 12.5px; }
.class-card .cc-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.class-card .cc-count { color: var(--muted); font-size: 13px; }
.class-card .cc-foot { display: flex; justify-content: flex-end; gap: 8px; border-top: 1px dashed var(--line-strong); padding-top: 12px; }

/* ============================================================
   点名
   ============================================================ */
.rollcall-layout { display: grid; grid-template-columns: 300px 1fr; gap: 16px; align-items: start; }
.roster-panel { position: sticky; top: 84px; }
.roster-list { display: flex; flex-direction: column; gap: 7px; max-height: calc(100vh - 260px); overflow-y: auto; padding-right: 4px; }
.student-row {
  display: flex; align-items: center; gap: 10px;
  background: var(--card);
  border: 1.5px solid var(--line);
  border-radius: 14px;
  padding: 8px 11px;
  transition: border-color 0.12s, background 0.12s;
}
.student-row:hover { border-color: var(--line-strong); background: var(--panel); }
.student-row .s-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.student-row .s-no { color: var(--faint); font-size: 12px; }
.seg { display: flex; gap: 3px; background: var(--panel); border-radius: 10px; padding: 3px; flex-shrink: 0; }
.seg button {
  border: none; background: none; color: var(--faint);
  font-size: 12.5px; padding: 5px 12px; border-radius: 8px; cursor: pointer;
  transition: background 0.12s, color 0.12s;
}
.seg button.on-p { background: var(--mint); color: #fff; font-weight: 700; }
.seg button.on-a { background: var(--red); color: #fff; font-weight: 700; }
.seg button.on-l { background: var(--sun); color: #fff; font-weight: 700; }
.seg button.on-v { background: var(--sky); color: #fff; font-weight: 700; }

.rollcall-summary {
  position: sticky; bottom: 0;
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  background: linear-gradient(180deg, rgba(255,255,255,0.72), #fff 45%);
  border: 2px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-top: 14px;
  box-shadow: 0 -8px 26px rgba(30, 50, 90, 0.08);
}
.rollcall-summary .num { font-size: 24px; font-weight: 800; }
.rollcall-summary .num.good { color: var(--mint); }
.rollcall-summary .num.bad { color: var(--red); }
.rollcall-summary .grow { flex: 1; }

/* 点名统计操作条 */
.rollcall-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}
.rollcall-bar .rc-stat { color: var(--muted); font-size: 13px; }
.rollcall-bar .rc-stat b { font-size: 18px; color: var(--text); margin-left: 3px; }
.rollcall-bar .rc-stat b.good { color: var(--mint); }
.rollcall-bar .rc-stat b.bad { color: var(--red); }

/* 随机选人结果条（点名页联动，现用于选人页大舞台下的补充） */
.mini-picker {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 14px;
}
.mini-picker .mini-name { font-size: 24px; font-weight: 800; color: var(--primary-2); }
.mini-picker .mini-sub { color: var(--faint); font-size: 12.5px; }
.mini-picker .mini-btns { display: flex; gap: 8px; flex-wrap: wrap; }

/* 随机选人白卡 */
.picker-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 30px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
  position: relative; overflow: hidden;
}
.picker-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px; background: var(--primary); }
.pk-content { min-height: 150px; }
.pk-title { color: var(--muted); font-size: 13px; letter-spacing: 1px; margin-bottom: 10px; }
.pk-big-name { font-size: 44px; font-weight: 800; color: var(--text); line-height: 1.15; min-height: 54px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pk-big-name.sm { font-size: 30px; }
.pk-big-name.winner { color: var(--primary-2); }
.pk-big-name.rolling { color: var(--muted); }
.pk-no { font-size: 14px; color: var(--faint); margin-left: 10px; font-weight: 600; }
.pk-names { display: flex; gap: 24px; flex-wrap: wrap; align-items: center; min-height: 54px; }
.pk-sub { color: var(--faint); font-size: 13px; margin-top: 8px; }
.pk-actions { display: flex; justify-content: center; margin-top: 18px; }
.pk-actions .btn-primary { min-width: 170px; padding: 12px 24px; font-size: 16px; }
.pk-quick { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.pk-num { display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: 13px; }
.pk-num input { width: 64px; padding: 6px 8px; }

/* 分组卡片 */
.group-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px; margin: 6px 0 4px; }
.group-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 12px 14px;
}
.group-name { font-weight: 800; font-size: 14px; color: var(--primary-2); margin-bottom: 8px; }
.group-members span {
  display: block; font-size: 13px; color: var(--text); padding: 2px 0;
}
.group-count { margin-top: 8px; color: var(--faint); font-size: 11.5px; }

/* 已抽 / 剩余池 */
.pk-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-items: start; }
.pk-cols .panel { margin-bottom: 0; }
/* 分组管理 */
.gm-list { display: flex; flex-direction: column; gap: 8px; }
.gm-row {
  display: flex; align-items: center; gap: 12px;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 12px; padding: 10px 14px;
}
.gm-info { flex: 1; min-width: 0; }
.gm-info b { font-size: 14px; }
.gm-info > span { color: var(--faint); font-size: 12px; margin-left: 6px; }
.gm-members { display: block; color: var(--muted); font-size: 12.5px; margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gm-actions { display: flex; gap: 6px; flex-shrink: 0; }
.gm-check {
  display: flex; align-items: center; gap: 10px;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; padding: 7px 12px; cursor: pointer;
}
.gm-check input { width: auto; accent-color: var(--primary); }
.picked-pool { display: flex; flex-wrap: wrap; gap: 8px; }
.picked-chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--primary-soft); color: var(--primary-2);
  border: 1px solid rgba(184, 67, 58, 0.3); border-radius: 999px;
  padding: 4px 6px 4px 12px; font-size: 13px; font-weight: 600;
}
.picked-chip button {
  border: none; background: var(--card); color: var(--primary-2);
  width: 20px; height: 20px; border-radius: 50%; cursor: pointer;
  font-size: 13px; line-height: 1;
}
.picked-chip button:hover { background: #e4edfe; }
.rest-pool { display: flex; flex-wrap: wrap; gap: 6px; }
.rest-chip {
  display: inline-flex; align-items: baseline; gap: 4px;
  background: var(--panel); color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px;
  padding: 3px 10px; font-size: 12.5px;
}
.rest-chip i { font-style: normal; color: var(--faint); font-size: 11px; }
.rest-more { color: var(--faint); font-size: 12px; align-self: center; margin-left: 4px; }

/* ============================================================
   排行榜
   ============================================================ */
.rank-list { display: flex; flex-direction: column; gap: 8px; }
.rank-item {
  display: flex; align-items: center; gap: 13px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 10px 14px;
  transition: border-color 0.15s, transform 0.1s, box-shadow 0.15s;
}
.rank-item:hover { border-color: rgba(184, 67, 58, 0.4); transform: translateX(2px); box-shadow: var(--shadow-sm); }
.rank-item.zero { background: transparent; border-style: dashed; }
.rank-item.zero .rank-score-num { color: var(--faint); }
.rank-item.zero .rank-name { color: var(--muted); font-weight: 500; }
.rank-item.top1 { background: #fffdf5; border: 1.5px solid #f3d9a4; }
.rank-item.top2 { background: #f8faff; border: 1.5px solid #c9d9f7; }
.rank-item.top3 { background: #fff8f4; border: 1.5px solid #f2cfc0; }
.rank-medal { width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 14px; color: #fff; flex-shrink: 0; }
.rank-medal.b1 { background: #b8860b; box-shadow: 0 3px 8px rgba(184,134,11,.35); }
.rank-medal.b2 { background: #b8c3d2; box-shadow: 0 3px 8px rgba(184,195,210,.4); }
.rank-medal.b3 { background: #dfa27c; box-shadow: 0 3px 8px rgba(223,162,124,.4); }
.rank-num { font-weight: 800; font-size: 17px; color: var(--faint); width: 32px; text-align: center; }
.rank-avatar {
  width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--primary-2); font-weight: 800; font-size: 16px;
  background: var(--primary-soft);
}
.rank-info { flex: 1; min-width: 0; }
.rank-name { font-weight: 800; font-size: 14.5px; }
.rank-sub { color: var(--faint); font-size: 12px; }
.rank-score-wrap { display: flex; align-items: center; gap: 12px; width: 46%; min-width: 130px; }
.rank-score-bar { flex: 1; height: 11px; background: var(--panel); border-radius: 999px; overflow: hidden; }
.rank-score-bar .fill { height: 100%; border-radius: 999px; background: var(--primary); transition: width 0.5s ease; }
.rank-score-num { font-weight: 800; font-size: 16px; color: var(--primary); min-width: 44px; text-align: right; }
.rank-actions { display: flex; gap: 6px; }
.quick-point {
  border: none; border-radius: 8px; padding: 5px 12px;
  font-size: 12.5px; font-weight: 700; cursor: pointer;
  transition: transform 0.1s, filter 0.15s;
}
.quick-point:hover { transform: translateY(-1px); filter: brightness(1.05); }
.qp-plus { background: #e5f8f1; color: #3c6b4a; border: 1px solid rgba(16,185,129,0.3); }
.qp-minus { background: #fdecec; color: #8f4034; border: 1px solid rgba(239,68,68,0.3); }
.qp-more { background: var(--primary-soft); color: var(--primary-2); border: 1px solid rgba(59,130,246,0.35); }

/* 加分弹窗 */
.point-pad { display: flex; gap: 9px; flex-wrap: wrap; margin-bottom: 14px; }
.point-pad button {
  border: 1.5px solid var(--line-strong); background: var(--card);
  border-radius: 14px; padding: 9px 16px; font-size: 15px; font-weight: 800;
  color: var(--text); cursor: pointer; transition: all 0.12s;
}
.point-pad button:active { transform: scale(0.95); }
.point-pad button.sel-plus { border-color: var(--mint); background: #e5f8f1; color: #3c6b4a; }
.point-pad button.sel-minus { border-color: var(--red); background: #fdecec; color: #8f4034; }
.reason-chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.reason-chips .chip {
  border: 1.5px solid var(--line-strong); background: var(--card); border-radius: 999px;
  padding: 6px 14px; font-size: 13px; color: var(--muted); cursor: pointer; transition: all 0.12s;
}
.reason-chips .chip.sel { border-color: var(--primary); background: var(--primary-soft); color: var(--primary-2); font-weight: 600; }

/* ============================================================
   课程表 — 彩色课程条
   ============================================================ */
.tt-grid { width: 100%; border-collapse: separate; border-spacing: 5px; min-width: 680px; }
.tt-grid th {
  color: var(--muted); font-weight: 600; font-size: 13px; padding: 6px 4px;
  background: var(--panel); border-radius: 10px;
}
.tt-grid th.today-col { color: var(--primary-2); background: var(--primary-soft); }
.tt-today-dot { background: var(--primary); color: #fff; font-size: 10px; border-radius: 8px; padding: 1px 6px; margin-left: 5px; font-weight: 700; }
/* 课表视图 Tab（我的课表/班级课表）— 用主蓝而非绿色 */
#tt-tabs { background: var(--panel); }
#tt-tabs button.on-p { background: var(--primary); color: #fff; }
#qz-mode button.on-p { background: var(--primary); color: #fdf8ec; border: 1.5px solid var(--ink); }
#qz-tabs button.on-p { background: var(--primary); color: #fdf8ec; border: 1.5px solid var(--ink); }
.tt-corner { background: transparent !important; }
.tt-time {
  color: var(--muted); font-size: 11.5px; white-space: nowrap; padding: 3px 5px;
  text-align: center; background: var(--card); border-radius: 8px;
  border: 1px solid var(--line);
}
.tt-time b { font-size: 12px; display: block; font-weight: 700; }
.tt-time span { color: var(--faint); font-size: 10px; }
.tt-break { text-align: center; color: var(--faint); font-size: 10.5px; padding: 1px 0 0; letter-spacing: 6px; }
.tt-cell {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 7px 8px 7px 10px;
  min-height: 50px;
  min-width: 84px;
  vertical-align: top;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: border-color 0.12s, background 0.12s, box-shadow 0.12s;
}
.tt-cell::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px;
  background: var(--primary); opacity: 0.9;
}
.tt-cell:hover { border-color: var(--primary); background: var(--primary-soft); box-shadow: 0 4px 12px rgba(99,102,241,.12); }
.tt-cell.today-col { border-color: rgba(184, 67, 58, 0.6); box-shadow: 0 4px 14px rgba(184, 67, 58, 0.16); }
.tt-cell .tt-sub { font-weight: 700; font-size: 13px; color: var(--text); line-height: 1.35; }
.tt-cell .tt-meta { color: var(--faint); font-size: 10.5px; margin-top: 2px; line-height: 1.3; }
.tt-cell.tt-empty {
  display: block;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--faint);
  text-align: center;
  line-height: 1.6;
  font-size: 12px;
  padding: 7px;
}
.tt-cell.tt-empty::before { display: none; }
.tt-cell.tt-empty span { font-size: 11px; }
.tt-cell.tt-empty span { display: block; font-size: 11.5px; }
.tt-cell.tt-empty:hover { color: var(--primary); border-color: var(--primary); background: var(--primary-soft); }
.tt-colors-0::before { background: var(--seal); } .tt-colors-0 .tt-sub { color: #8f4034; }
.tt-colors-1::before { background: #4a7c59; } .tt-colors-1 .tt-sub { color: #3c6b4a; }
.tt-colors-2::before { background: #b8860b; } .tt-colors-2 .tt-sub { color: #b45309; }
.tt-colors-3::before { background: var(--purple); } .tt-colors-3 .tt-sub { color: #6c506e; }
.tt-colors-4::before { background: #0ea5e9; } .tt-colors-4 .tt-sub { color: #0277b5; }
.tt-colors-5::before { background: #ec4899; } .tt-colors-5 .tt-sub { color: #8f4034; }
.tt-colors-6::before { background: #15803d; } .tt-colors-6 .tt-sub { color: #15803d; }

/* 我的课表（教师汇总）格子：一格里可容纳多班 */
.tt-cell.tt-mine { background: var(--card); display: flex; flex-direction: column; gap: 3px; justify-content: center; padding: 6px 8px 6px 10px; min-height: 50px; }
.tt-mine-line { display: flex; align-items: center; gap: 5px; flex-wrap: wrap; line-height: 1.3; }
.tt-mine-line b { font-size: 12px; }
.tt-mine-cls {
  font-size: 10.5px; color: var(--primary-2);
  background: var(--primary-soft); border-radius: 6px; padding: 0 5px;
}
.tt-mine-room { font-size: 10px; color: var(--faint); }

/* 节次时间设置 */
.tt-periods { display: flex; flex-direction: column; gap: 8px; }
.tt-p-head, .tt-p-row {
  display: grid;
  grid-template-columns: 52px 1fr 110px 110px 46px;
  gap: 8px; align-items: center;
}
.tt-p-head span { color: var(--faint); font-size: 12px; font-weight: 600; }
.tt-p-no { font-weight: 800; font-size: 16px; color: var(--primary); text-align: center; }
.tt-p-row input { padding: 8px 10px; font-size: 13.5px; }

/* ============================================================
   作业统计
   ============================================================ */
.homework-list { display: flex; flex-direction: column; gap: 10px; }
.hw-card {
  display: grid;
  grid-template-columns: minmax(180px, 1.2fr) minmax(200px, 1.4fr) minmax(180px, 1fr);
  gap: 16px; align-items: center;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
  position: relative; overflow: hidden;
}
.hw-card::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 4px; background: var(--sky); }
.hw-card:hover { border-color: rgba(59,130,246,.4); box-shadow: 0 10px 24px rgba(59,130,246,.12); transform: translateY(-1px); }
.hw-title { font-weight: 700; font-size: 15px; }
.hw-meta { color: var(--faint); font-size: 12.5px; margin-top: 4px; }
.hw-progress { height: 11px; border-radius: 999px; background: var(--panel); overflow: hidden; }
.hw-progress .fill { height: 100%; border-radius: 999px; background: var(--primary); transition: width .4s ease; }
.hw-nums { display: flex; gap: 12px; margin-top: 8px; font-size: 12.5px; flex-wrap: wrap; }
.hw-nums .ok { color: var(--mint); font-weight: 700; }
.hw-nums .warn { color: var(--sun); font-weight: 700; }
.hw-nums .bad { color: var(--red); font-weight: 700; }
.hw-right { display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
.hw-bad { color: var(--red); font-size: 12.5px; text-align: right; max-width: 100%; }
.hw-bad.all-in { color: var(--mint); }
.hw-actions { display: flex; gap: 8px; }

.hw-students { display: flex; flex-direction: column; gap: 5px; max-height: 52vh; overflow-y: auto; padding-right: 4px; }
.hw-stu {
  display: flex; align-items: center; gap: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 6px 10px;
  font-size: 13.5px;
}
.hw-stu .seg button { font-size: 11.5px; padding: 3px 8px; }

/* ============================================================
   表单/弹窗
   ============================================================ */
.modal-mask {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(24, 34, 54, 0.48);
  backdrop-filter: blur(4px);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 7vh 18px 18px;
  overflow-y: auto;
}
.modal {
  width: 100%; max-width: 480px;
  background: var(--card);
  border: 2.5px solid var(--ink);
  border-radius: 14px;
  box-shadow: 6px 6px 0 rgba(61, 52, 42, 0.25);
  animation: modal-in 0.18s ease;
}
.modal.modal-lg { max-width: 680px; }
@keyframes modal-in { from { opacity: 0; transform: translateY(14px) scale(0.98); } to { opacity: 1; transform: none; } }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 22px 26px 0; }
.modal-head h3 { margin: 0; font-size: 18px; font-weight: 800; }
.modal-close { background: none; border: none; color: var(--faint); font-size: 22px; cursor: pointer; padding: 4px 8px; border-radius: 10px; line-height: 1; }
.modal-close:hover { color: var(--text); background: var(--panel); }
.modal-body { padding: 18px 26px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; padding: 0 26px 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 6px; }
.check-line { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 13.5px; margin: 6px 0 14px; }
.check-line input[type="checkbox"] { width: auto; accent-color: var(--primary); transform: scale(1.12); }
.hint-text { color: var(--faint); font-size: 12.5px; margin: 8px 0 0; }

.toast-root { position: fixed; top: 18px; left: 50%; transform: translateX(-50%); z-index: 200; display: flex; flex-direction: column; gap: 9px; align-items: center; pointer-events: none; }
.toast {
  background: #1c2432;
  color: #fff;
  border-radius: 999px;
  padding: 10px 20px;
  font-size: 13.5px;
  font-weight: 500;
  box-shadow: 0 12px 30px rgba(24, 34, 54, 0.25);
  animation: toast-in 0.2s ease;
  max-width: min(92vw, 520px);
}
.toast.success { background: #065f46; }
.toast.success::before { content: none; }
.toast.error { background: #7f1d1d; }
.toast.error::before { content: none; }
@keyframes toast-in { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }

.detail-list { display: flex; flex-direction: column; gap: 0; }
.detail-item { padding: 10px 0; border-bottom: 1px dashed var(--line-strong); }
.detail-item:last-child { border-bottom: none; }
.detail-item .dt { color: var(--faint); font-size: 12.5px; margin-bottom: 3px; }
.detail-item .dd { font-size: 14px; white-space: pre-wrap; word-break: break-word; }

/* ============================================================
   课堂答题（一题一屏，大屏友好）
   ============================================================ */
.qz-wrap { max-width: 1200px; margin: 0 auto; }
.qz-top { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.qz-progress { flex: 1; height: 8px; background: var(--panel); border-radius: 999px; overflow: hidden; }
.qz-progress .fill { height: 100%; border-radius: 999px; background: var(--primary); transition: width .4s ease; }
.qz-pos { font-weight: 800; font-size: 16px; color: var(--text); }
.qz-stem { font-size: 30px; font-weight: 700; line-height: 1.75; margin-bottom: 30px; white-space: pre-wrap; font-family: var(--font-comic); }
.qz-opts { display: flex; flex-direction: column; gap: 14px; }
.qz-opts.judge-row { flex-direction: row; }
.qz-opts.judge-row .qz-opt { flex: 1; }
.qz-opt {
  display: flex; align-items: center; gap: 16px;
  background: var(--card); border: 2px solid var(--ink);
  border-radius: 12px; padding: 18px 24px;
  font-size: 20px;
  box-shadow: 2px 2px 0 rgba(61,52,42,.3); cursor: pointer; text-align: left;
  transition: border-color .15s, background .15s, transform .1s;
}
.qz-opt b { width: 34px; height: 34px; border-radius: 50%; background: var(--panel); display: flex; align-items: center; justify-content: center; font-size: 16px; flex-shrink: 0; }
.qz-opt span { flex: 1; }
.qz-opt:hover { border-color: var(--primary); background: var(--primary-soft); }
.qz-opt.sel { border-color: var(--primary); background: var(--primary-soft); }
.qz-opt.sel b { background: var(--primary); color: #fff; }
.qz-opt.right { border-color: var(--mint); background: var(--mint-soft); }
.qz-opt.right b { background: var(--mint); color: #fff; }
.qz-opt.wrong { border-color: var(--red); background: var(--red-soft); }
.qz-opt.wrong b { background: var(--red); color: #fff; }
.qz-col-line { display: flex; gap: 8px; align-items: center; width: 100%; }
.qzc-disabled { opacity: 0.45; pointer-events: none; }
.qz-fill { display: flex; gap: 12px; flex-wrap: wrap; }
.qz-fill .qz-blank { width: 320px; font-size: 20px; padding: 12px 16px; }
/* 连线 */
.qz-match { display: flex; gap: 20px; align-items: stretch; }
.qz-match-col { display: flex; flex-direction: column; gap: 12px; min-width: 220px; flex: 1; }
.qz-match-item {
  display: flex; align-items: center; gap: 10px;
  background: var(--card); border: 2px solid var(--line-strong); border-radius: 14px;
  padding: 16px 20px; font-size: 19px; text-align: left; cursor: pointer;
  transition: border-color .15s, background .15s, transform .12s;
}
.qz-match-item:hover { border-color: var(--primary); background: var(--primary-soft); }
.qz-match-item.sel { border-color: var(--primary); background: var(--primary-soft); transform: scale(1.02); }
.qz-match-item.paired { cursor: pointer; }
.qz-match-item.pair-in { animation: pair-in .3s ease; }
.m-txt { flex: 1; }
.m-badge {
  width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-size: 12px;
}
.qz-match-arrow { align-self: center; font-size: 26px; color: var(--faint); }
#qz-match.match-ok .qz-match-item { border-color: rgba(16,185,129,.5) !important; }
#qz-match.match-bad .qz-match-item { border-color: rgba(239,68,68,.4) !important; }
/* 动效 */
.animate-in { animation: qz-in .3s ease; }
.bounce { animation: qz-bounce .35s ease; }
.shake { animation: qz-shake .4s ease; }
.pulse { animation: qz-pulse .5s ease; }
@keyframes qz-in { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes qz-bounce { 0% { transform: scale(1); } 40% { transform: scale(1.04); } 100% { transform: scale(1); } }
@keyframes qz-shake { 0%,100% { transform: translateX(0); } 25% { transform: translateX(-5px); } 75% { transform: translateX(5px); } }
@keyframes qz-pulse { 0% { box-shadow: 0 0 0 0 rgba(16,185,129,.4); } 100% { box-shadow: 0 0 0 10px rgba(16,185,129,0); } }
@keyframes pair-in { 0% { transform: scale(.92); } 100% { transform: scale(1); } }
.qz-answer { margin: 16px 0 10px; }
/* 对错横幅 */
.qz-verdict {
  display: flex; align-items: center; gap: 10px;
  border-radius: 12px; padding: 12px 18px;
  font-size: 17px; font-weight: 700; margin: 14px 0 12px;
  animation: qz-in .3s ease;
}
.qz-verdict span { font-size: 20px; }
.qz-verdict.v-ok { background: var(--mint-soft); color: #3c6b4a; border: 1px solid rgba(16,185,129,.35); }
.qz-verdict.v-bad { background: var(--red-soft); color: #8f4034; border: 1px solid rgba(239,68,68,.3); }
.qz-verdict.v-ref { background: var(--sun-soft); color: #b45309; border: 1px solid rgba(245,158,11,.35); font-weight: 500; font-size: 14px; }
/* 填空正误 */
.qz-blank.fill-right { border-color: var(--mint) !important; background: var(--mint-soft) !important; color: #3c6b4a; }
.qz-blank.fill-wrong { border-color: var(--red) !important; background: var(--red-soft) !important; color: #8f4034; }
.qz-answer-box { background: var(--mint-soft); border: 1px solid rgba(16,185,129,.35); border-radius: 12px; padding: 16px 20px; font-size: 18px; line-height: 1.6; }
.qz-explain { margin-top: 8px; color: var(--muted); font-size: 15px; background: var(--panel); border-radius: 10px; padding: 12px 16px; }
.qz-match-ans { margin: 6px 0 0; padding-left: 22px; }
.qz-ref { margin-top: 6px; white-space: pre-wrap; font-size: 15px; }
.qz-controls { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.qz-controls .btn { font-size: 15px; padding: 11px 22px; }
.qz-manual-btns { display: flex; gap: 8px; }
.btn-success { background: var(--mint); color: #fff; }
.btn-success:hover { background: #3c6b4a; }
.sel-good { outline: 2px solid var(--mint); }
.sel-bad { outline: 2px solid var(--red); }
.qz-result-head { text-align: center; padding: 12px 0 18px; }
.qz-score { font-size: 48px; font-weight: 800; color: var(--primary-2); }
.qz-score-sub { color: var(--muted); font-size: 13.5px; margin-top: 4px; }
.qz-review { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 8px; }
.qz-rev-item { border: 1px solid var(--line-strong); border-radius: 10px; padding: 9px 12px; font-size: 12.5px; cursor: pointer; text-align: left; background: var(--card); transition: transform .1s; }
.qz-rev-item.rev-right { border-color: rgba(16,185,129,.45); background: var(--mint-soft); color: #3c6b4a; }
.qz-rev-item.rev-wrong { border-color: rgba(239,68,68,.4); background: var(--red-soft); color: #8f4034; }
.qz-rev-item:hover { outline: 2px solid var(--primary); transform: translateY(-1px); }

/* ---------- 题型大徽章 + 作答提示（投屏可读性优先） ---------- */
.qz-top-left { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; min-width: 0; }
.qz-type-badge { display: inline-flex; align-items: center; font-family: var(--font-comic); font-size: 20px; font-weight: 700; letter-spacing: 3px; padding: 5px 18px; border-radius: 12px; border: 2px solid var(--ink); box-shadow: 3px 3px 0 rgba(69,58,45,.18); white-space: nowrap; }
.tb-single { background: #fdecec; color: #a94b3e; }
.tb-multi  { background: #f1ebfe; color: #6d4fd3; }
.tb-judge  { background: #fef3e0; color: #b45309; }
.tb-fill   { background: #e5f8f1; color: #3c6b4a; }
.tb-analysis { background: var(--red-soft); color: #8f4034; }
.tb-short  { background: var(--panel); color: var(--ink); }
.tb-match  { background: #e8f1fd; color: #2b5fa7; }
.qz-hint { font-size: 15px; color: var(--ink); background: var(--panel); border: 1px solid var(--line-strong); border-radius: 999px; padding: 4px 14px; white-space: nowrap; }
.qz-chap { font-size: 12.5px; color: var(--faint); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 260px; }

/* ---------- 投屏全屏模式 ---------- */
body.screenmode .sidebar, body.screenmode .topbar { display: none; }
body.screenmode .content { padding: 30px 48px; }
body.screenmode .qz-wrap { max-width: 1400px; }
body.screenmode .qz-stem { font-size: 36px; }
body.screenmode .qz-type-badge { font-size: 30px; padding: 10px 28px; letter-spacing: 5px; box-shadow: 4px 4px 0 rgba(69,58,45,.22); }
body.screenmode .qz-hint { font-size: 22px; padding: 8px 22px; }
body.screenmode .qz-chap { font-size: 16px; max-width: 420px; }
body.screenmode .qz-opt { font-size: 24px; padding: 20px 26px; border-radius: 16px; }
body.screenmode .qz-opt b { width: 38px; height: 38px; font-size: 17px; }
body.screenmode .qz-match-item { font-size: 22px; padding: 18px 22px; }
body.screenmode .qz-blank { font-size: 24px; }
body.screenmode .btn { font-size: 17px; padding: 12px 26px; }
body.screenmode .q-enter { min-height: calc(100vh - 320px); display: flex; flex-direction: column; justify-content: center; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .dash-grid { grid-template-columns: 1fr; }
  .rollcall-layout { grid-template-columns: 1fr; }
  .roster-panel { position: static; }
  .roster-list { max-height: 46vh; }
  .rank-score-wrap { width: 34%; }
  .hw-card { grid-template-columns: 1fr; gap: 10px; }
  .hw-right { align-items: flex-start; }
}
@media (max-width: 860px) {
  .login-wrap { flex-direction: column; }
  .login-brand { padding: 40px 28px 30px; flex: none; }
  .login-brand-inner { max-width: 100%; }
  .login-title { font-size: 28px; margin-top: 14px; }
  .login-panel { flex: 1; padding: 26px 18px 40px; }
  .login-card { padding: 30px 26px 26px; }

  .sidebar {
    position: fixed; left: 0; top: 0; bottom: 0; z-index: 60;
    transform: translateX(-102%);
    transition: transform 0.22s ease;
    box-shadow: 0 0 40px rgba(24, 34, 54, 0.25);
  }
  .sidebar.open { transform: none; }
  .sidebar-backdrop { position: fixed; inset: 0; background: rgba(24,34,54,0.5); z-index: 55; }
  .app-shell { display: block; }
  .topbar { padding: 12px 16px; gap: 10px; }
  .topbar h1 { font-size: 17px; }
  .content { padding: 16px 14px 80px; }
  .menu-btn { display: inline-flex !important; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
}
.menu-btn { display: none !important; }
@media (min-width: 861px) { .sidebar-backdrop { display: none !important; } }

@media (min-width: 1500px) {
  .content { max-width: 1440px; margin: 0 auto; width: 100%; }
}

/* 打印：课表 */
@media print {
  body { background: var(--card); color: #000; }
  .sidebar, .topbar, .toolbar, .page-actions, .toast-root { display: none !important; }
  .tt-cell { border-color: #ccc; background: var(--card); }
  .tt-cell .tt-sub { color: #000 !important; }
}