:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1f2430;
  --muted: #7a8299;
  --border: #e5e9f2;
  --primary: #4f6ef7;
  --primary-dk: #3b57d6;
  --danger: #e8536f;
  --warn: #f59e0b;
  --ok: #12a88a;
  --shadow: 0 2px 12px rgba(31, 36, 48, .07);
  --radius: 14px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif; background: var(--bg); color: var(--text); min-height: 100dvh; }
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 13px; }
.small { font-size: 12px; }

/* ---------- 登录 ---------- */
.login-wrap { min-height: 100dvh; display: flex; align-items: center; justify-content: center; padding: 24px;
  background: linear-gradient(135deg, #eef2ff 0%, #fdf2f6 60%, #eefaf6 100%); }
.login-card { background: var(--card); border-radius: 20px; box-shadow: var(--shadow); padding: 40px 36px; width: 420px; max-width: 100%; text-align: center; }
.login-logo { font-size: 44px; }
.login-card h1 { font-size: 20px; margin: 12px 0 6px; }
.login-sub { color: var(--muted); font-size: 13px; margin-bottom: 22px; }
.login-providers { display: flex; gap: 12px; margin-bottom: 18px; }
.login-providers .btn { flex: 1; }
.btn-wx { background: #07c160; color: #fff; }
.btn-wecom { background: #0082f0; color: #fff; }
.login-users { display: flex; flex-direction: column; gap: 8px; margin-top: 6px; }
.login-user { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border: 1px solid var(--border); border-radius: 12px; cursor: pointer; background: #fafbff; transition: .15s; text-align: left; }
.login-user:hover { border-color: var(--primary); background: #f0f4ff; }
.login-user .avatar { width: 36px; height: 36px; }
.login-user small { color: var(--muted); display: block; }
.login-tip { margin-top: 16px; color: var(--muted); font-size: 12px; }

/* ---------- 顶栏 ---------- */
.topbar { background: var(--card); border-bottom: 1px solid var(--border); padding: 0 24px; height: 60px; display: flex; align-items: center; gap: 24px; position: sticky; top: 0; z-index: 10; }
.brand { font-weight: 700; font-size: 17px; }
.brand-tag { font-size: 11px; background: #eef1ff; color: var(--primary); padding: 2px 8px; border-radius: 20px; margin-left: 6px; }
.tabs { display: flex; gap: 4px; flex: 1; }
.tab { border: none; background: none; padding: 8px 16px; border-radius: 10px; cursor: pointer; font-size: 14px; color: var(--muted); }
.tab.active { background: #eef1ff; color: var(--primary); font-weight: 600; }
.tab:hover { color: var(--primary); }
.badge { background: var(--danger); color: #fff; font-size: 11px; border-radius: 10px; padding: 1px 7px; margin-left: 4px; }
.me { display: flex; align-items: center; gap: 10px; }
.me-info { line-height: 1.2; }
.me-info small { color: var(--muted); }

/* ---------- 通用 ---------- */
.content { padding: 24px; max-width: 1200px; margin: 0 auto; }
.view { animation: fadeIn .2s; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; } }
.card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; margin-bottom: 16px; }
.card h3 { margin-bottom: 8px; font-size: 15px; }
.row { display: flex; gap: 10px; margin-top: 10px; align-items: center; flex-wrap: wrap; }
.btn { border: 1px solid var(--border); background: var(--card); color: var(--text); padding: 9px 18px; border-radius: 10px; cursor: pointer; font-size: 14px; transition: .15s; }
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dk); color: #fff; }
.btn-sm { padding: 5px 12px; font-size: 13px; }
.btn-ghost { border: none; background: none; color: var(--muted); }
.btn-ghost:hover { color: var(--danger); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
input, textarea, select { border: 1px solid var(--border); border-radius: 10px; padding: 9px 12px; font-size: 14px; font-family: inherit; background: #fbfcff; color: var(--text); outline: none; }
input:focus, textarea:focus, select:focus { border-color: var(--primary); }
textarea { width: 100%; resize: vertical; }
.avatar { width: 32px; height: 32px; border-radius: 50%; color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 600; flex-shrink: 0; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { border: 1px solid var(--border); background: var(--card); padding: 5px 14px; border-radius: 20px; font-size: 13px; cursor: pointer; color: var(--muted); }
.chip.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.code-block { display: block; background: #1f2430; color: #c9e3ff; padding: 14px; border-radius: 10px; font-size: 12px; margin-top: 10px; white-space: pre-wrap; word-break: break-all; }

/* ---------- 四象限 ---------- */
.quad-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }
.quad { background: var(--card); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); cursor: pointer; border-top: 3px solid transparent; transition: .15s; }
.quad:hover { transform: translateY(-2px); }
.quad b { display: block; font-size: 13px; }
.quad small { color: var(--muted); font-size: 11px; }
.quad-n { font-size: 26px; font-weight: 700; display: block; margin: 6px 0 2px; }
.quad.q1 { border-top-color: var(--danger); } .quad.q1 .quad-n { color: var(--danger); }
.quad.q2 { border-top-color: var(--warn); } .quad.q2 .quad-n { color: var(--warn); }
.quad.q3 { border-top-color: #eab308; } .quad.q3 .quad-n { color: #ca8a04; }
.quad.q4 { border-top-color: var(--ok); } .quad.q4 .quad-n { color: var(--ok); }
.quad.dim { opacity: .55; }

/* ---------- 待办列表 ---------- */
.list-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; gap: 12px; flex-wrap: wrap; }
.todo-list { display: flex; flex-direction: column; gap: 10px; }
.todo-item { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 14px 18px; display: flex; gap: 14px; align-items: flex-start; border-left: 4px solid var(--border); }
.todo-item.uu { border-left-color: var(--danger); }
.todo-item.nu { border-left-color: var(--warn); }
.todo-item.un { border-left-color: #eab308; }
.todo-item.nn { border-left-color: var(--ok); }
.todo-item.done { opacity: .55; }
.todo-item.done .t-title { text-decoration: line-through; }
.t-check { width: 20px; height: 20px; margin-top: 2px; cursor: pointer; accent-color: var(--ok); }
.t-body { flex: 1; min-width: 0; }
.t-title { font-weight: 600; font-size: 15px; }
.t-tags { display: flex; gap: 6px; margin-top: 6px; flex-wrap: wrap; }
.tag { font-size: 11px; padding: 2px 9px; border-radius: 20px; }
.tag.urgent { background: #fee8ec; color: var(--danger); }
.tag.important { background: #fef3d9; color: #b45309; }
.tag.src { background: #eef1ff; color: var(--primary); }
.tag.owner { background: #e8f8f4; color: var(--ok); }
.tag.ack { background: #fff3cd; color: #856404; }
.tag.lock { background: #ece9fe; color: #6d28d9; }
.field-label { font-size: 12px; color: var(--muted); display: block; }

/* ---------- 成员卡片 ---------- */
.member-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.member-card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; }

/* ---------- 扫码登录 ---------- */
.qr-box { position: relative; width: 240px; height: 240px; margin: 14px auto; border-radius: 14px; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; background: #fff; }
.qr-box img { width: 220px; height: 220px; }
.qr-mask { position: absolute; inset: 0; background: rgba(31,36,48,.82); color: #fff; display: flex; align-items: center; justify-content: center; border-radius: 14px; font-size: 14px; text-align: center; line-height: 1.8; }
.qr-fallback { border-top: 1px dashed var(--border); margin-top: 14px; padding-top: 10px; }
.qr-users { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: 8px; }
.t-meta { color: var(--muted); font-size: 12px; margin-top: 6px; display: flex; gap: 14px; flex-wrap: wrap; }
.t-note { color: var(--muted); font-size: 13px; margin-top: 5px; white-space: pre-wrap; }
.t-actions { display: flex; gap: 6px; flex-shrink: 0; }
.t-actions .btn { padding: 4px 10px; font-size: 12px; }
.empty { text-align: center; color: var(--muted); padding: 50px 0; }

/* ---------- 短信 ---------- */
.sms-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.sms-samples { margin-top: 12px; font-size: 12px; color: var(--muted); }
.sms-samples a { color: var(--primary); cursor: pointer; margin-right: 10px; text-decoration: none; }
.sms-samples a:hover { text-decoration: underline; }
.ai-result { background: #f7f9ff; border-radius: 10px; padding: 14px; }
.ai-result .ok { color: var(--ok); font-weight: 600; }
.toggle { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; background: #f4f6fb; padding: 8px 14px; border-radius: 10px; cursor: pointer; }
.sms-log-item { padding: 10px 0; border-bottom: 1px dashed var(--border); font-size: 13px; }
.sms-log-item:last-child { border-bottom: none; }

/* ---------- 通知 ---------- */
.notify-item { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 14px 18px; margin-bottom: 10px; display: flex; gap: 14px; }
.notify-item.unread { border-left: 4px solid var(--primary); }
.n-title { font-weight: 600; font-size: 14px; }
.n-content { font-size: 13px; color: var(--text); margin-top: 4px; }
.n-time { color: var(--muted); font-size: 12px; margin-top: 6px; }
.n-wecom { font-size: 12px; margin-top: 4px; }
.n-wecom.sent { color: var(--ok); } .n-wecom.fail { color: var(--warn); }

/* ---------- 弹窗 / Toast ---------- */
.modal { position: fixed; inset: 0; background: rgba(31,36,48,.45); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px; }
.modal-box { background: var(--card); border-radius: 16px; padding: 24px; width: 460px; max-width: 100%; max-height: 85vh; overflow: auto; }
.modal-box h3 { margin-bottom: 12px; }
.modal-box input, .modal-box select { width: 100%; margin-bottom: 10px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 14px; }
.toast { position: fixed; top: 76px; left: 50%; transform: translateX(-50%); background: #1f2430; color: #fff; padding: 10px 22px; border-radius: 30px; font-size: 14px; z-index: 200; box-shadow: var(--shadow); }
.toast.err { background: var(--danger); }

/* 历史时间线 */
.h-item { padding: 8px 0 8px 16px; border-left: 2px solid var(--border); position: relative; font-size: 13px; margin-left: 6px; }
.h-item::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); position: absolute; left: -5px; top: 13px; }
.h-item small { color: var(--muted); display: block; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px; }
.form-grid label { font-size: 13px; color: var(--muted); display: flex; flex-direction: column; gap: 5px; }

@media (max-width: 900px) {
  .quad-grid { grid-template-columns: repeat(2, 1fr); }
  .sms-layout { grid-template-columns: 1fr; }
  .tabs { overflow-x: auto; }
  .me-info { display: none; }
}