/* ============================================================
   青岛教务智能体 · 对话式 AI 界面（豆包风格）
   ============================================================ */
:root {
  --primary: #C8102E;
  --primary2: #E8A33D;
  --grad: linear-gradient(135deg, #D7000F 0%, #FF7A00 50%, #FFC400 100%);
  --grad-soft: linear-gradient(135deg, #fdecec 0%, #fff4e0 100%);
  --accent: #C8102E;
  --accent-soft: #fdeef0;
  --success: #22c55e;
  --success-light: #dcfce7;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --danger: #ef4444;
  --danger-light: #fee2e2;
  --text: #1f2330;
  --text-2: #6b7280;
  --text-3: #9aa1b1;
  --border: #ececf2;
  --bg: #ffffff;
  --bubble-user: #eef1f7;
  --bot-bg: #ffffff;
  --card-bg: #ffffff;
  --gray-100: #f3f4f8;
  --gray-200: #e8eaf0;
  --gray-300: #cfd4e0;
  --gray-400: #9aa1b1;
  --gray-500: #6b7280;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1f2330;
  --secondary: #E8A33D;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
.hidden { display: none !important; }

/* ============================================================
   主应用布局
   ============================================================ */
.app { display: flex; flex-direction: column; height: 100vh; height: 100dvh; }

/* 顶栏 - 毛玻璃 */
.topbar {
  height: 60px; padding: 0 22px; display: flex; align-items: center; justify-content: space-between;
  background: rgba(255,255,255,0.82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border); z-index: 50; flex-shrink: 0;
}
/* 线面结合 SVG 图标：默认继承文字色，随容器字号缩放，垂直居中对齐 */
.ic { vertical-align: middle; flex-shrink: 0; }
svg.ic { width: 1em; height: 1em; }
.topbar-left { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 40px; height: 40px; border-radius: 12px; background: var(--grad);
  display: flex; align-items: center; justify-content: center; font-size: 22px;
  box-shadow: 0 6px 16px rgba(91,108,255,0.32);
}
.brand-logo .ic { color: #fff; }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { font-size: 16px; font-weight: 700; color: var(--text); }
.brand-sub { font-size: 11px; color: var(--text-3); }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.class-selector {
  padding: 7px 12px; border: 1px solid var(--border); border-radius: 18px;
  font-size: 13px; background: white; cursor: pointer; max-width: 200px; color: var(--text-2);
}
.class-selector:focus { outline: none; border-color: var(--primary); }
.user-chip { display: flex; align-items: center; gap: 8px; }
.user-avatar-sm {
  width: 30px; height: 30px; border-radius: 50%; background: var(--grad);
  display: flex; align-items: center; justify-content: center; color: white; font-weight: 700; font-size: 13px;
}
#top-username { font-size: 13px; font-weight: 600; color: var(--text); }
.role-tag {
  font-size: 11px; padding: 2px 9px; border-radius: 10px;
  background: var(--grad-soft); color: var(--primary); font-weight: 600;
}
.btn-switch {
  padding: 8px 16px; border: 1px solid var(--border); background: #fff; border-radius: 20px;
  font-size: 13px; cursor: pointer; color: var(--text-2); transition: all 0.2s; font-weight: 500;
}
.btn-switch:hover { border-color: var(--primary); color: var(--primary); background: var(--grad-soft); }

/* 数据源标识：钉钉文档 */
.source-badge {
  font-size: 11px; color: var(--primary); background: var(--grad-soft);
  padding: 4px 10px; border-radius: 12px; font-weight: 600; white-space: nowrap;
  border: 1px solid rgba(91,108,255,0.18);
}
/* 同步钉钉按钮 */
.btn-sync {
  padding: 7px 14px; border: 1px solid rgba(91,108,255,0.35); background: #fff; border-radius: 20px;
  font-size: 13px; cursor: pointer; color: var(--primary); transition: all 0.2s; font-weight: 600;
  display: flex; align-items: center; gap: 4px;
}
.btn-sync:hover { background: var(--grad-soft); border-color: var(--primary); }
.btn-sync:disabled { opacity: 0.6; cursor: default; }

/* ============================================================
   聊天区
   ============================================================ */
.chat-main { flex: 1; display: flex; flex-direction: column; position: relative; overflow: hidden; }
.chat-scroll { flex: 1; overflow-y: auto; padding: 24px 16px 8px; }
.chat-messages {
  display: flex; flex-direction: column; gap: 22px; max-width: 780px; width: 100%; margin: 0 auto;
}

/* ---- 首页欢迎（豆包式） ---- */
.welcome-view {
  flex: 1; display: flex; align-items: center; justify-content: center;
  overflow-y: auto; padding: 40px 20px; animation: fadeIn 0.5s ease;
}
.welcome-inner { max-width: 720px; width: 100%; text-align: center; }
.welcome-logo {
  width: 68px; height: 68px; border-radius: 22px; background: var(--grad);
  display: flex; align-items: center; justify-content: center; font-size: 36px; margin: 0 auto 22px;
  box-shadow: 0 10px 30px rgba(91,108,255,0.38);
}
.welcome-title { font-size: 27px; font-weight: 700; color: var(--text); margin-bottom: 10px; letter-spacing: 0.5px; }
.welcome-sub { color: var(--text-2); font-size: 15px; margin-bottom: 6px; }
.welcome-note {
  display: inline-block; margin: 14px 0 26px; padding: 8px 18px; border-radius: 20px;
  background: var(--grad-soft); color: var(--primary); font-size: 13.5px; font-weight: 600;
}
.welcome-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; text-align: left; }
.w-card {
  background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 16px 18px;
  cursor: pointer; transition: all 0.22s; display: flex; gap: 13px; align-items: flex-start;
}
.w-card:hover { transform: translateY(-3px); border-color: var(--primary); box-shadow: 0 10px 28px rgba(91,108,255,0.16); }
.w-icon {
  width: 42px; height: 42px; border-radius: 12px; background: var(--grad-soft);
  display: flex; align-items: center; justify-content: center; font-size: 22px; flex-shrink: 0;
}
.w-body { display: flex; flex-direction: column; }
.w-title { font-weight: 600; font-size: 14.5px; color: var(--text); }
.w-desc { font-size: 12.5px; color: var(--text-3); margin-top: 3px; }
.welcome-tip { margin-top: 26px; color: var(--text-3); font-size: 13px; }

/* ---- 消息气泡 ---- */
.msg-row { display: flex; gap: 12px; max-width: 100%; align-items: flex-start; }
.msg-row.user { flex-direction: row-reverse; }
.msg-avatar {
  width: 38px; height: 38px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; font-size: 20px;
  background: var(--grad); color: white; box-shadow: 0 3px 10px rgba(91,108,255,0.28);
}
.msg-row.user .msg-avatar { background: #e3e6ef; color: #6b7280; box-shadow: none; }
.msg-content { display: flex; flex-direction: column; gap: 10px; max-width: 80%; }
.msg-row.user .msg-content { align-items: flex-end; }

.msg-bubble {
  padding: 13px 17px; border-radius: 18px; font-size: 14.5px; line-height: 1.7;
  white-space: pre-wrap; word-break: break-word;
}
.msg-row.bot .msg-bubble { background: var(--bot-bg); border: 1px solid var(--border); border-top-left-radius: 5px; box-shadow: 0 2px 8px rgba(0,0,0,0.03); }
.msg-row.user .msg-bubble { background: var(--bubble-user); color: var(--text); border-top-right-radius: 5px; }

/* ============================================================
   富卡片（豆包风：白底圆角、柔和阴影）
   ============================================================ */
.card-block {
  background: var(--card-bg); border-radius: 16px; padding: 18px 20px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05); border: 1px solid var(--border); width: 100%;
}
.card-block .cb-title { font-size: 14.5px; font-weight: 700; color: var(--text); margin-bottom: 14px; display: flex; align-items: center; gap: 6px; }

/* 课程时间线 */
.timeline { position: relative; padding-left: 20px; }
.timeline::before { content: ''; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 2px; background: var(--gray-200); }
.tl-item { position: relative; padding: 11px 0 11px 4px; }
.tl-item::before { content: ''; position: absolute; left: -17px; top: 15px; width: 11px; height: 11px; border-radius: 50%; background: var(--primary); border: 2px solid white; box-shadow: 0 0 0 2px var(--grad-soft); }
.tl-time { font-size: 13px; font-weight: 700; color: var(--primary); }
.tl-title { font-size: 14.5px; font-weight: 600; margin: 3px 0; color: var(--text); }
.tl-meta { font-size: 12.5px; color: var(--text-2); display: flex; gap: 12px; flex-wrap: wrap; }
.tl-type { display: inline-block; font-size: 11px; padding: 1px 9px; border-radius: 10px; background: var(--grad-soft); color: var(--primary); font-weight: 600; }

/* 学员列表 */
.group-block { margin-bottom: 14px; }
.group-name { font-size: 13px; font-weight: 700; color: var(--text-2); margin-bottom: 7px; }
.stu-item { display: flex; align-items: center; gap: 11px; padding: 7px 0; border-bottom: 1px solid #f4f5f8; }
.stu-item:last-child { border-bottom: none; }
.stu-avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--grad-soft); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 700; }
.stu-info { flex: 1; }
.stu-name { font-size: 13.5px; font-weight: 600; color: var(--text); }
.stu-org { font-size: 12px; color: var(--text-3); }

/* 学员报到信息卡（首次确认身份） */
.ob-card { border-top: 3px solid var(--primary); }
.ob-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border); border-radius: 12px; overflow: hidden; margin-bottom: 14px; }
.ob-row { display: flex; flex-direction: column; gap: 3px; padding: 11px 13px; background: var(--card-bg); }
.ob-label { font-size: 11.5px; color: var(--text-3); font-weight: 600; }
.ob-value { font-size: 13.5px; color: var(--text); font-weight: 600; word-break: break-all; }
.ob-group { border-top: 1px dashed var(--border); padding-top: 12px; }
.ob-group-title { font-size: 13px; font-weight: 700; color: var(--text-2); margin-bottom: 9px; }
.ob-members { display: flex; flex-direction: column; gap: 2px; }
.ob-member { display: flex; align-items: center; gap: 11px; padding: 7px 9px; border-radius: 10px; background: var(--gray-100); margin-bottom: 5px; }
.ob-member.is-leader { background: var(--grad-soft); border: 1px solid var(--grad-soft); }
.ob-tag { display: inline-block; font-size: 10.5px; padding: 1px 7px; border-radius: 9px; background: var(--primary); color: #fff; font-weight: 700; margin-left: 4px; }
.ob-tag.tag-leader { background: var(--primary); }
.ob-tag.tag-deputy { background: #7c5cff; }
.ob-tag.tag-liaison { background: #0ea5a4; }
.ob-empty { font-size: 12.5px; color: var(--text-3); padding: 6px 0; }

/* 作业卡片 */
.hw-card { border-left: 3px solid var(--primary); padding: 13px 15px; background: var(--gray-100); border-radius: 10px; margin-bottom: 12px; }
.hw-title { font-size: 14.5px; font-weight: 700; margin-bottom: 5px; color: var(--text); }
.hw-content { font-size: 12.5px; color: var(--gray-600); margin-bottom: 9px; }
.hw-meta { font-size: 11.5px; color: var(--text-3); display: flex; gap: 12px; }
.hw-status { font-size: 12.5px; font-weight: 600; margin-top: 7px; }
.hw-progress { display: flex; gap: 12px; margin-top: 12px; }
.progress-item { flex: 1; }
.progress-item .p-label { font-size: 11.5px; color: var(--text-2); margin-bottom: 4px; }
.progress-bar { height: 7px; background: var(--gray-200); border-radius: 4px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--success); transition: width 0.3s; }
.progress-fill.orange { background: var(--warning); }
.btn-inline {
  margin-top: 10px; padding: 7px 16px; border: none; border-radius: 9px;
  background: var(--grad); color: white; font-size: 12.5px; font-weight: 600; cursor: pointer; transition: 0.2s;
}
.btn-inline:hover { filter: brightness(1.05); box-shadow: 0 4px 12px rgba(91,108,255,0.3); }

/* 统计卡片 */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(108px, 1fr)); gap: 12px; }
.stat-box { background: var(--gray-100); border-radius: 12px; padding: 15px 10px; text-align: center; }
.stat-box .s-num { font-size: 25px; font-weight: 700; color: var(--text); }
.stat-box .s-label { font-size: 12px; color: var(--text-3); margin-top: 3px; }
.stat-box.present .s-num { color: var(--success); }
.stat-box.late .s-num { color: var(--warning); }
.stat-box.leave .s-num { color: var(--secondary); }
.stat-box.absent .s-num { color: var(--danger); }
.stat-box.rate .s-num { color: var(--primary); }

/* 结果卡片 */
.result-card { display: flex; align-items: center; gap: 13px; padding: 15px; background: var(--success-light); border-radius: 12px; }
.result-card .r-icon { font-size: 30px; }
.result-card .r-title { font-weight: 700; color: var(--text); font-size: 14.5px; }
.result-card .r-desc { font-size: 12.5px; color: var(--gray-600); }

/* 表单卡片 */
.form-card { background: var(--gray-100); border-radius: 12px; padding: 17px; }
.form-card .fc-title { font-size: 14px; font-weight: 700; margin-bottom: 14px; color: var(--text); }
.fc-field { margin-bottom: 12px; }
.fc-field label { display: block; font-size: 12.5px; color: var(--text-2); margin-bottom: 5px; }
.fc-field input, .fc-field textarea, .fc-field select {
  width: 100%; padding: 9px 12px; border: 1px solid var(--gray-200); border-radius: 9px; font-size: 13.5px; font-family: inherit; background: #fff;
}
.fc-field input:focus, .fc-field textarea:focus { outline: none; border-color: var(--primary); }
.fc-field textarea { resize: vertical; min-height: 64px; }
.fc-submit { width: 100%; padding: 11px; background: var(--grad); color: white; border: none; border-radius: 10px; font-size: 13.5px; font-weight: 600; cursor: pointer; margin-top: 6px; transition: 0.2s; }
.fc-submit:hover { filter: brightness(1.05); }

/* 审批卡片 */
.approve-card { border-left: 3px solid var(--warning); background: var(--warning-light); padding: 13px 15px; border-radius: 10px; margin-bottom: 12px; }
.approve-card .a-name { font-weight: 700; color: var(--text); }
.approve-card .a-detail { font-size: 12.5px; color: var(--gray-600); margin: 5px 0; }
.approve-btns { display: flex; gap: 9px; margin-top: 10px; }

/* 上传卡片 */
.upload-card { border: 2px dashed var(--gray-300); border-radius: 12px; padding: 22px; text-align: center; color: var(--text-2); }
.upload-card .u-icon { font-size: 34px; margin-bottom: 9px; }

/* 成绩卡片 */
.perf-card { border-left: 3px solid var(--success); padding: 11px 15px; background: var(--gray-100); border-radius: 10px; margin-bottom: 10px; }
.perf-title { font-weight: 600; font-size: 13.5px; color: var(--text); }
.perf-detail { font-size: 12.5px; color: var(--text-3); margin-top: 4px; }
.score-badge { font-weight: 700; color: var(--success); }

/* ============================================================
   建议词
   ============================================================ */
.chat-suggestions { padding: 16px 0 4px; display: flex; flex-wrap: wrap; gap: 9px; max-width: 780px; width: 100%; margin: 0 auto; }
.chip {
  background: #fff; border: 1px solid var(--border); padding: 8px 15px; border-radius: 18px;
  font-size: 13px; cursor: pointer; transition: all 0.2s; color: var(--text-2);
}
.chip:hover { background: var(--grad-soft); border-color: var(--primary); color: var(--primary); }

/* ============================================================
   输入区（底部胶囊）
   ============================================================ */
.chat-input-area { padding: 12px 16px 10px; flex-shrink: 0; }
.input-pill {
  max-width: 780px; margin: 0 auto; display: flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--border); border-radius: 26px; padding: 7px 7px 7px 16px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.07); transition: border-color 0.2s;
}
.input-pill:focus-within { border-color: var(--primary); }
.input-pill input[type="text"] {
  flex: 1; border: none; outline: none; font-size: 15px; background: transparent; padding: 6px 0; color: var(--text);
}
.input-pill input[type="text"]::placeholder { color: var(--text-3); }
.btn-upload {
  width: 38px; height: 38px; border-radius: 50%; border: none; background: var(--gray-100);
  color: var(--text-2); font-size: 24px; cursor: pointer; line-height: 1; transition: 0.2s; flex-shrink: 0;
}
.btn-upload:hover { background: var(--gray-200); color: var(--primary); }
.btn-send {
  width: 42px; height: 42px; border-radius: 50%; border: none; background: var(--grad); color: #fff;
  cursor: pointer; display: flex; align-items: center; justify-content: center; transition: 0.2s; flex-shrink: 0;
}
.btn-send:hover { filter: brightness(1.08); box-shadow: 0 6px 18px rgba(91,108,255,0.45); transform: scale(1.04); }
.input-hint { text-align: center; color: var(--text-3); font-size: 11px; margin-top: 9px; }

/* ============================================================
   Typing / Toast / Modal
   ============================================================ */
.typing { display: flex; gap: 5px; padding: 14px 17px; }
.typing span { width: 8px; height: 8px; border-radius: 50%; background: var(--gray-300); animation: blink 1.4s infinite both; }
.typing span:nth-child(2) { animation-delay: 0.2s; }
.typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes blink { 0%, 80%, 100% { opacity: 0.3; } 40% { opacity: 1; } }

.toast {
  position: fixed; top: 20px; right: 20px; padding: 13px 24px; border-radius: 10px;
  font-size: 14px; font-weight: 600; z-index: 400; box-shadow: 0 6px 20px rgba(0,0,0,0.16); animation: slideIn 0.3s ease;
}
.toast.success { background: var(--success); color: white; }
.toast.error { background: var(--danger); color: white; }
.toast.info { background: var(--primary); color: white; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.modal-overlay { position: fixed; inset: 0; background: rgba(20,22,35,0.45); display: flex; align-items: center; justify-content: center; z-index: 300; padding: 20px; backdrop-filter: blur(2px); }
.modal { background: white; border-radius: 16px; padding: 28px; width: 100%; max-width: 540px; max-height: 86vh; overflow-y: auto; box-shadow: 0 20px 60px rgba(0,0,0,0.25); }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.modal-header h3 { font-size: 17px; font-weight: 700; color: var(--text); }
.modal-close { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text-3); }
.modal-body { font-size: 14px; }
.modal-footer { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; }
.btn { padding: 9px 20px; border-radius: 9px; font-size: 13.5px; font-weight: 600; cursor: pointer; border: none; }
.btn-gray { background: var(--gray-100); color: var(--text-2); }
.btn-blue { background: var(--primary); color: white; }
.btn-green { background: var(--success); color: white; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; font-weight: 500; }
.form-group textarea, .form-group input { width: 100%; padding: 10px 12px; border: 1px solid var(--gray-200); border-radius: 9px; font-size: 13.5px; font-family: inherit; }
.form-group textarea:focus, .form-group input:focus { outline: none; border-color: var(--primary); }

/* 滚动条 */
::-webkit-scrollbar { width: 7px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* 欢迎屏：身份确认提示块 */
.identity-prompt {
  display: inline-flex; align-items: center; gap: 9px; margin: 16px auto 26px;
  padding: 11px 20px; border-radius: 22px; max-width: 560px;
  background: var(--grad-soft); color: var(--text-2); font-size: 13.5px;
}
.identity-prompt .ip-icon { font-size: 18px; }
.identity-prompt b { color: var(--primary); }

/* 身份确认请求卡 */
.identity-ask { border: 1px solid var(--border); }
.ia-head { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 15px; }
.ia-icon { font-size: 26px; }
.ia-title { font-size: 15px; font-weight: 700; color: var(--text); }
.ia-desc { font-size: 13px; color: var(--text-2); margin-top: 3px; line-height: 1.6; }
.ia-methods { display: flex; flex-direction: column; gap: 9px; margin-bottom: 15px; }
.ia-method { display: flex; justify-content: space-between; align-items: center; padding: 10px 14px; background: var(--gray-100); border-radius: 10px; }
.ia-m-label { font-size: 13px; font-weight: 600; color: var(--text); }
.ia-m-eg { font-size: 12.5px; color: var(--text-3); }
.ia-quick { display: flex; flex-wrap: wrap; gap: 8px; }
.ia-btn { padding: 8px 15px; border: 1px solid var(--border); border-radius: 18px; background: #fff; font-size: 13px; cursor: pointer; color: var(--text-2); transition: all .2s; }
.ia-btn:hover { background: var(--grad-soft); border-color: var(--primary); color: var(--primary); }

/* 身份已确认成功卡 */
.identity-confirm { text-align: center; padding: 22px 20px; border: 1px solid var(--border); background: linear-gradient(135deg, #f4fff6 0%, #eef6ff 100%); }
.ic-badge { width: 52px; height: 52px; border-radius: 50%; background: var(--success); color: #fff; font-size: 26px; display: flex; align-items: center; justify-content: center; margin: 0 auto 12px; box-shadow: 0 8px 20px rgba(34,197,94,0.3); }
.ic-name { font-size: 18px; font-weight: 700; color: var(--text); }
.ic-role { display: inline-block; margin-top: 6px; font-size: 12px; padding: 3px 12px; border-radius: 12px; background: var(--grad-soft); color: var(--primary); font-weight: 600; }
.ic-tip { margin-top: 14px; font-size: 13px; color: var(--text-2); }
.ic-classes { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; margin-top: 12px; }
.ic-class-btn { padding: 9px 18px; border: 1px solid var(--primary); border-radius: 12px; background: #fff; color: var(--primary); font-size: 13px; font-weight: 600; cursor: pointer; transition: all .2s; }
.ic-class-btn:hover { background: var(--grad); color: #fff; box-shadow: 0 6px 16px rgba(91,108,255,0.3); }

/* 验证中加载气泡 */
.loading-bubble { padding: 13px 17px; border-radius: 18px; background: var(--bot-bg); border: 1px solid var(--border); border-top-left-radius: 5px; display: flex; flex-direction: column; gap: 8px; }
.loading-label { font-size: 13.5px; color: var(--text-2); }

@media (max-width: 768px) {
  .welcome-cards { grid-template-columns: 1fr; }
  .msg-content { max-width: 85%; }
  .welcome-title { font-size: 23px; }
  #top-username { display: none; }
  .brand-sub { display: none; }
}

/* 钉钉文件夹列表卡片 */
.folder-list { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.folder-item { padding: 10px 13px; border-radius: 12px; background: var(--bot-bg); border: 1px solid var(--border); }
.folder-name { font-size: 14px; font-weight: 600; color: var(--text-1); }
.folder-meta { font-size: 12px; color: var(--text-2); margin-top: 2px; }
.folder-current { margin-top: 10px; padding: 8px 12px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); font-size: 12.5px; font-weight: 600; }

/* ============================================================
   深色主题（data-theme="dark"）
   ============================================================ */
[data-theme="dark"] {
  --text: #f3e9e6;
  --text-2: #cbb9b5;
  --text-3: #998887;
  --border: #3a2b2e;
  --bg: #15100f;
  --bubble-user: #2c2024;
  --bot-bg: #20181a;
  --card-bg: rgba(255,255,255,0.045);
  --gray-100: #241a1c;
  --gray-200: #35282b;
  --gray-300: #4a3538;
  --gray-400: #998887;
  --gray-500: #cbb9b5;
  --gray-600: #d8c8c4;
  --gray-700: #e6d8d4;
  --gray-800: #f3e9e6;
  --grad-soft: linear-gradient(135deg, #2a1719 0%, #2c2313 100%);
  --accent-soft: #2a1719;
}
[data-theme="dark"] body { background: var(--bg); }
[data-theme="dark"] .topbar { background: rgba(21,16,15,0.82); border-bottom-color: var(--border); }
[data-theme="dark"] .btn-sync,
[data-theme="dark"] .btn-switch { background: #20181a; color: var(--text-2); border-color: var(--border); }
[data-theme="dark"] .btn-switch:hover { background: var(--gray-100); color: var(--primary2); }
[data-theme="dark"] .source-badge { background: var(--accent-soft); color: var(--primary2); border-color: rgba(232,163,61,0.25); }
[data-theme="dark"] .w-card { background: rgba(255,255,255,0.045); border-color: var(--border); }
[data-theme="dark"] .w-card:hover { box-shadow: 0 10px 28px rgba(0,0,0,0.4); }
[data-theme="dark"] .input-pill { background: #20181a; border-color: var(--border); }
[data-theme="dark"] .chip { background: rgba(255,255,255,0.05); border-color: var(--border); color: var(--text-2); }
[data-theme="dark"] .modal { background: #1d1517; }
[data-theme="dark"] .identity-confirm { background: linear-gradient(135deg, #2a1719 0%, #1f1a2e 100%); }

/* 主题切换按钮 */
.btn-theme {
  width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--border);
  background: #fff; font-size: 17px; cursor: pointer; line-height: 1; transition: all 0.2s; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center; color: var(--text-2);
}
.btn-theme:hover { border-color: var(--primary); color: var(--primary); background: var(--grad-soft); transform: scale(1.05); }

/* ============================================================
   首页 Landing（红金党建 · 高级感）
   ============================================================ */
.welcome-view { position: relative; display: block; align-items: stretch; justify-content: flex-start; max-width: 880px; margin: 0 auto; padding: 30px 16px 44px; }
.hero {
  position: relative; overflow: hidden; border-radius: 24px; padding: 54px 28px 46px; margin-bottom: 26px;
  background:
    radial-gradient(1100px 560px at 15% -10%, rgba(232,163,61,0.20), transparent 60%),
    radial-gradient(1000px 520px at 92% 0%, rgba(200,16,46,0.16), transparent 55%),
    linear-gradient(180deg, #ffffff 0%, #fff7f2 100%);
  border: 1px solid #f3e2dc;
}
[data-theme="dark"] .hero {
  background:
    radial-gradient(1100px 560px at 15% -10%, rgba(232,163,61,0.16), transparent 60%),
    radial-gradient(1000px 520px at 92% 0%, rgba(200,16,46,0.22), transparent 55%),
    linear-gradient(180deg, #1d1517 0%, #181011 100%);
  border-color: #3a2b2e;
}
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: 0.7; pointer-events: none; }
.hero-inner { position: relative; z-index: 1; }
.hero-title { font-size: 38px; font-weight: 800; line-height: 1.22; letter-spacing: 0.5px; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent; }
.hero-tag { color: var(--text-2); font-size: 15px; margin-top: 16px; line-height: 1.7; max-width: 560px; margin-left: auto; margin-right: auto; }

.section-title { font-size: 16px; font-weight: 700; color: var(--text); margin: 4px 0 14px; display: flex; align-items: center; gap: 8px; }
.section-title::before { content: ''; width: 4px; height: 16px; border-radius: 3px; background: var(--grad); }

.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; text-align: left; margin-bottom: 8px; }
.cap-card { position: relative; padding: 16px 17px; border-radius: 16px; cursor: pointer; background: rgba(255,255,255,0.7); border: 1px solid #f0e3df; backdrop-filter: blur(8px); transition: all 0.24s; overflow: hidden; }
.cap-card::after { content: ''; position: absolute; right: -30px; top: -30px; width: 90px; height: 90px; border-radius: 50%; background: radial-gradient(circle, rgba(232,163,61,0.22), transparent 70%); opacity: 0; transition: opacity 0.3s; }
.cap-card:hover { transform: translateY(-4px); border-color: var(--primary); box-shadow: 0 14px 30px rgba(200,16,46,0.14); }
.cap-card:hover::after { opacity: 1; }
[data-theme="dark"] .cap-card { background: rgba(255,255,255,0.04); border-color: var(--border); }
.cap-icon { width: 44px; height: 44px; border-radius: 13px; display: flex; align-items: center; justify-content: center; font-size: 23px; background: var(--grad-soft); margin-bottom: 11px; }
.cap-title { font-weight: 700; font-size: 14.5px; color: var(--text); }
.cap-desc { font-size: 12.5px; color: var(--text-3); margin-top: 4px; line-height: 1.55; }

.identity-hint { color: var(--text-2); font-size: 13.5px; margin: 18px 0 14px; }

@media (max-width: 768px) {
  .hero { padding: 40px 18px 34px; border-radius: 18px; }
  .hero-title { font-size: 27px; }
  .cap-grid { grid-template-columns: 1fr 1fr; }
  .welcome-cards { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .hero-canvas { display: none; }
}

/* ============================================================
   学员快捷模块：课程安排 / 我的作业 / 位置签到 / 培训意见箱
   ============================================================ */
.chip-module { background: linear-gradient(135deg, var(--primary), #e8556a); color: #fff; border: none; font-weight: 600; box-shadow: 0 3px 8px rgba(200,16,46,0.18); }
.chip-module:hover { transform: translateY(-1px); }

.empty-hint { color: var(--text-3); font-size: 13.5px; padding: 14px 6px; text-align: center; }
.src-tag { display: inline-block; font-size: 11.5px; color: var(--text-3); margin-top: 10px; padding: 2px 9px; background: var(--gray-100); border-radius: 9px; }

/* 我的作业 */
.asmt-list { display: flex; flex-direction: column; gap: 11px; margin-top: 4px; }
.asmt-item { border-radius: 11px; padding: 13px 14px; background: var(--gray-100); border-left: 3px solid var(--gray-300); }
.asmt-item.ok { border-left-color: var(--success); background: rgba(34,197,94,0.06); }
.asmt-item.warn { border-left-color: var(--warning); background: rgba(245,158,11,0.06); }
.asmt-item.muted { border-left-color: var(--gray-300); }
.asmt-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 7px; }
.asmt-title { font-weight: 700; font-size: 14.5px; color: var(--text); }
.asmt-tag { font-size: 11px; font-weight: 700; padding: 2px 9px; border-radius: 9px; color: #fff; }
.asmt-tag.ok { background: var(--success); }
.asmt-tag.warn { background: var(--warning); }
.asmt-tag.muted { background: var(--gray-400); }
.asmt-content { font-size: 12.5px; color: var(--text-2); line-height: 1.6; margin-bottom: 9px; }
.asmt-score { display: flex; align-items: baseline; gap: 3px; margin: 8px 0 6px; }
.asmt-score .score-num { font-size: 24px; font-weight: 800; color: var(--primary); }
.asmt-score .score-unit { font-size: 12.5px; color: var(--text-3); }
.asmt-feedback { font-size: 12.5px; color: var(--text-2); background: rgba(255,255,255,0.55); border-radius: 8px; padding: 8px 10px; margin: 6px 0; }
[data-theme="dark"] .asmt-feedback { background: rgba(255,255,255,0.04); }
.asmt-info { font-size: 12.5px; color: var(--text-2); padding: 5px 0; }
.asmt-info.muted { color: var(--text-3); }
.asmt-meta { font-size: 11.5px; color: var(--text-3); margin-top: 4px; }

/* 签到（扫码签到） */
.ck-info { font-size: 13px; color: var(--text-2); padding: 6px 0 12px; line-height: 1.6; }
.ck-result { margin: 8px 0; }
.ck-loc, .ck-wait { font-size: 12.5px; color: var(--text-2); padding: 3px 0; }
.ck-success { background: rgba(34,197,94,0.08); border-left: 3px solid var(--success); padding: 10px 12px; border-radius: 8px; font-size: 13px; color: var(--text); }
.ck-success .ck-line { padding: 2px 0; }
.ck-error { background: rgba(239,68,68,0.08); border-left: 3px solid #ef4444; padding: 9px 12px; border-radius: 8px; font-size: 12.5px; color: #c0392b; }
[data-theme="dark"] .ck-error { color: #ff8a8a; }
.ck-btn { margin-top: 10px; background: var(--primary); color: #fff; border: none; padding: 11px 22px; border-radius: 11px; font-size: 14px; font-weight: 600; cursor: pointer; transition: transform 0.2s, opacity 0.2s; }
.ck-btn:hover:not(:disabled) { transform: translateY(-1px); opacity: 0.92; }
.ck-btn:disabled { opacity: 0.6; cursor: not-allowed; }

/* 扫码签到：学员输入签到码 + 教务出示二维码 */
.ck-code-row { display: flex; gap: 8px; align-items: center; margin-top: 8px; }
.ck-input { flex: 1; min-width: 0; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg-2); color: var(--text); font-size: 13.5px; font-family: inherit; box-sizing: border-box; }
.ck-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(200,16,46,0.1); }
.ck-code-row .ck-btn { margin-top: 0; flex-shrink: 0; padding: 11px 18px; }
.ck-btn-sub { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.ck-qr-box { margin: 10px 0; padding: 14px; border: 1px dashed var(--border); border-radius: 12px; background: var(--bg-2); text-align: center; }
.ck-qr-img { display: inline-block; background: #fff; padding: 10px; border-radius: 10px; line-height: 0; }
.ck-qr-img svg { width: 200px; height: 200px; display: block; }

/* 培训意见箱 */
.fb-info { font-size: 13px; color: var(--text-2); padding: 6px 0 10px; line-height: 1.6; }
.fb-text { width: 100%; min-height: 88px; padding: 11px 13px; border-radius: 11px; border: 1px solid var(--border); background: var(--bg-2); color: var(--text); font-size: 13.5px; font-family: inherit; resize: vertical; box-sizing: border-box; }
.fb-text:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(200,16,46,0.1); }
.fb-upload { margin-top: 11px; }
.fb-file-label { display: inline-block; font-size: 13px; color: var(--primary); cursor: pointer; padding: 6px 12px; border-radius: 9px; background: rgba(200,16,46,0.06); transition: background 0.2s; }
.fb-file-label:hover { background: rgba(200,16,46,0.12); }
.fb-file-label input { display: none; }
.fb-preview { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.fb-thumb { width: 64px; height: 64px; border-radius: 9px; background-size: cover; background-position: center; border: 1px solid var(--border); }
.fb-actions { margin-top: 14px; }
.fb-submit { background: var(--primary); color: #fff; border: none; padding: 10px 24px; border-radius: 11px; font-size: 14px; font-weight: 600; cursor: pointer; transition: transform 0.2s, opacity 0.2s; }
.fb-submit:hover:not(:disabled) { transform: translateY(-1px); opacity: 0.92; }
.fb-submit:disabled { opacity: 0.6; cursor: not-allowed; }
.fb-result { margin-top: 10px; }

/* 我的作业 - 提交按钮 */
.asmt-foot { margin-top: 10px; }
.asmt-btn {
  margin-top: 2px; padding: 7px 16px; border: none; border-radius: 9px;
  background: var(--grad); color: white; font-size: 12.5px; font-weight: 600; cursor: pointer; transition: 0.2s;
}
.asmt-btn:hover { filter: brightness(1.05); box-shadow: 0 4px 12px rgba(200,16,46,0.28); }

/* 作业提交弹窗 - 图片/附件上传 */
.hw-att-list { display: flex; flex-direction: column; gap: 7px; margin-top: 8px; }
.up-thumb { position: relative; width: 64px; height: 64px; border-radius: 9px; overflow: hidden; border: 1px solid var(--border); }
.up-img { width: 100%; height: 100%; background-size: cover; background-position: center; }
.up-del { position: absolute; top: 2px; right: 2px; width: 18px; height: 18px; border-radius: 50%; border: none; background: rgba(0,0,0,0.55); color: #fff; font-size: 11px; line-height: 18px; cursor: pointer; padding: 0; }
.up-file { display: flex; align-items: center; gap: 8px; padding: 7px 10px; background: var(--gray-100); border-radius: 9px; font-size: 12.5px; }
.up-file-name { flex: 1; color: var(--text); word-break: break-all; }
.up-file-link { color: var(--primary); font-weight: 600; text-decoration: none; white-space: nowrap; }
.up-file-link:hover { text-decoration: underline; }
.up-file-new { color: var(--text-3); font-size: 11px; white-space: nowrap; }
[data-theme="dark"] .up-file { background: rgba(255,255,255,0.05); }

/* ============ 教务模块 ============ */
.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }
.hw-actions { margin-bottom: 12px; }

/* 签到统计卡 */
.ck-section { margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--border); }
.ck-section:first-of-type { border-top: none; padding-top: 0; }
.ck-sub { font-size: 13px; font-weight: 700; color: var(--text-2); margin-bottom: 8px; }
.ck-line { font-size: 12.5px; color: var(--text); margin: 4px 0; }
.ck-table { width: 100%; border-collapse: collapse; margin-top: 6px; font-size: 12.5px; }
.ck-table th, .ck-table td { padding: 7px 8px; text-align: left; border-bottom: 1px solid var(--border); }
.ck-table th { color: var(--text-3); font-weight: 600; background: var(--gray-50); }
.ck-table tbody tr:hover { background: var(--gray-50); }
.ck-detail-scroll { max-height: 240px; overflow-y: auto; border: 1px solid var(--border); border-radius: 9px; }
[data-theme="dark"] .ck-table th { background: rgba(255,255,255,0.04); }
[data-theme="dark"] .ck-table tbody tr:hover { background: rgba(255,255,255,0.03); }

/* 培训意见箱（教务视角） */
.fb-tip { font-size: 12px; color: var(--text-3); margin-bottom: 10px; }
.fb-list { display: flex; flex-direction: column; gap: 12px; max-height: 360px; overflow-y: auto; }
.fb-item { padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--gray-50); }
.fb-meta { font-size: 12px; color: var(--text-3); margin-bottom: 6px; }
.fb-meta b { color: var(--text); }
.fb-text-out { font-size: 13.5px; color: var(--text); line-height: 1.5; white-space: pre-wrap; word-break: break-word; }
.fb-imgs { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.fb-thumb-sm { width: 48px; height: 48px; border-radius: 8px; background-size: cover; background-position: center; border: 1px solid var(--border); display: inline-block; }
.fb-reply-box { display: flex; gap: 8px; margin-top: 10px; }
.fb-reply-box input { flex: 1; padding: 8px 10px; border: 1px solid var(--gray-200); border-radius: 8px; font-size: 13px; }
.fb-reply-box input:focus { outline: none; border-color: var(--primary); }
.fb-reply-done { margin-top: 10px; padding: 8px 10px; background: rgba(34,197,94,0.1); border-radius: 8px; font-size: 12.5px; color: var(--success); }
[data-theme="dark"] .fb-item { background: rgba(255,255,255,0.03); }

/* 批改面板 - AI 综合评分 */
.grad-ai-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.grad-ai-status { font-size: 12px; color: var(--text-3); }
.grad-ai-box { padding: 10px 12px; background: var(--gray-100); border-radius: 9px; font-size: 13px; color: var(--text); margin-bottom: 12px; }
.grad-ai-sug { margin-top: 4px; color: var(--text-2); font-size: 12.5px; line-height: 1.5; }
.grad-final { font-size: 14px; font-weight: 700; color: var(--primary); margin: 10px 0; padding: 8px 12px; background: rgba(200,16,46,0.06); border-radius: 8px; }
[data-theme="dark"] .grad-ai-box { background: rgba(255,255,255,0.05); }