* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --primary: #1a5fb4;
  --primary-dark: #144a8c;
  --primary-light: #e8f1fb;
  --success: #2e9e5b;
  --warning: #e6a23c;
  --danger: #d83931;
  --text: #1f2d3d;
  --text-2: #5e6d82;
  --border: #e4e9f0;
  --bg: #f3f5f9;
}
body { font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; color: var(--text); background: var(--bg); font-size: 14px; }
a { color: var(--primary); text-decoration: none; }

/* ---------- 登录 ---------- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #0f3d75 0%, #1a5fb4 55%, #3d8bfd 100%); }
.login-box { width: 400px; background: #fff; border-radius: 12px; padding: 40px 40px 32px;
  box-shadow: 0 18px 50px rgba(10, 40, 80, .35); }
.login-logo { text-align: center; margin-bottom: 8px; }
.login-logo .badge { display: inline-flex; align-items: center; justify-content: center; width: 56px; height: 56px;
  border-radius: 14px; background: var(--primary); color: #fff; font-size: 26px; font-weight: 700; }
.login-title { text-align: center; font-size: 20px; font-weight: 700; margin-top: 14px; }
.login-sub { text-align: center; color: var(--text-2); font-size: 13px; margin: 6px 0 26px; }
.login-box .form-item { margin-bottom: 18px; }
.login-box input, .login-box select { width: 100%; height: 42px; border: 1px solid var(--border); border-radius: 8px;
  padding: 0 14px; font-size: 14px; outline: none; transition: border .2s; }
.login-box input:focus, .login-box select:focus { border-color: var(--primary); }
.login-btn { width: 100%; height: 44px; border: none; border-radius: 8px; background: var(--primary); color: #fff;
  font-size: 16px; cursor: pointer; }
.login-btn:hover { background: var(--primary-dark); }
.login-links { display: flex; justify-content: space-between; margin-top: 14px; font-size: 13px; }
.login-tip { margin-top: 18px; padding: 10px 12px; background: var(--primary-light); border-radius: 8px; font-size: 12px; color: var(--text-2); line-height: 1.8; }

/* ---------- 布局 ---------- */
.layout { display: flex; min-height: 100vh; }
.sidebar { width: 224px; background: #0f2440; color: #c8d6e8; flex-shrink: 0; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.sidebar .brand { padding: 18px 20px; color: #fff; font-size: 16px; font-weight: 700; border-bottom: 1px solid rgba(255,255,255,.08); line-height: 1.5; }
.sidebar .brand small { display: block; font-size: 11px; font-weight: 400; color: #8fa8c6; margin-top: 2px; }
.menu-group { padding: 12px 12px 4px; font-size: 12px; color: #6f8bab; }
.menu-item { display: block; padding: 10px 16px; margin: 2px 8px; border-radius: 8px; color: #c8d6e8; font-size: 14px; cursor: pointer; }
.menu-item:hover { background: rgba(255,255,255,.07); color: #fff; }
.menu-item.active { background: var(--primary); color: #fff; }
.menu-item .demo-tag { float: right; font-size: 11px; background: #e6a23c; color: #fff; border-radius: 4px; padding: 1px 6px; margin-top: 1px; }
.main { flex: 1; min-width: 0; }
.topbar { height: 56px; background: #fff; border-bottom: 1px solid var(--border); display: flex; align-items: center;
  padding: 0 24px; justify-content: space-between; position: sticky; top: 0; z-index: 50; }
.topbar .page-title { font-size: 16px; font-weight: 600; }
.topbar .user { display: flex; align-items: center; gap: 10px; color: var(--text-2); font-size: 13px; }
.topbar .user .avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--primary); color: #fff;
  display: inline-flex; align-items: center; justify-content: center; font-size: 13px; }
.content { padding: 20px 24px 40px; }

/* ---------- 组件 ---------- */
.card { background: #fff; border-radius: 10px; border: 1px solid var(--border); padding: 18px 20px; margin-bottom: 18px; }
.card h3 { font-size: 15px; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.card h3::before { content: ""; width: 4px; height: 16px; background: var(--primary); border-radius: 2px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 14px; }
.toolbar .spacer { flex: 1; }
input.ipt, select.ipt { height: 34px; border: 1px solid var(--border); border-radius: 6px; padding: 0 10px; font-size: 13px; outline: none; background: #fff; }
input.ipt:focus, select.ipt:focus { border-color: var(--primary); }
textarea.ipt { border: 1px solid var(--border); border-radius: 6px; padding: 8px 10px; font-size: 13px; outline: none; width: 100%; resize: vertical; font-family: inherit; }
textarea.ipt:focus { border-color: var(--primary); }
.btn { display: inline-flex; align-items: center; gap: 4px; height: 34px; padding: 0 14px; border: 1px solid var(--border);
  border-radius: 6px; background: #fff; color: var(--text); font-size: 13px; cursor: pointer; white-space: nowrap; }
.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-dark); }
.btn.success { background: var(--success); border-color: var(--success); color: #fff; }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.warning { background: var(--warning); border-color: var(--warning); color: #fff; }
.btn.small { height: 26px; padding: 0 9px; font-size: 12px; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th { background: #f7f9fc; color: var(--text-2); font-weight: 600; text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.tbl td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.tbl tbody tr:hover { background: #f8fafd; }
.tbl .ops { display: flex; gap: 6px; flex-wrap: wrap; }

.tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; line-height: 1.6; }
.tag.blue { background: #e8f1fb; color: var(--primary); }
.tag.green { background: #e6f6ec; color: var(--success); }
.tag.orange { background: #fdf3e3; color: var(--warning); }
.tag.red { background: #fdecea; color: var(--danger); }
.tag.gray { background: #eef1f5; color: var(--text-2); }

.pager { display: flex; justify-content: flex-end; align-items: center; gap: 10px; margin-top: 14px; font-size: 13px; color: var(--text-2); }

/* ---------- 弹窗 ---------- */
.modal-mask { position: fixed; inset: 0; background: rgba(15, 30, 50, .45); display: none; align-items: center; justify-content: center; z-index: 100; }
.modal-mask.show { display: flex; }
.modal { background: #fff; border-radius: 12px; width: 560px; max-width: 94vw; max-height: 88vh; overflow-y: auto; }
.modal .modal-head { padding: 16px 20px; border-bottom: 1px solid var(--border); font-size: 15px; font-weight: 600;
  display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; background: #fff; }
.modal .modal-head .close { cursor: pointer; color: var(--text-2); font-size: 18px; }
.modal .modal-body { padding: 20px; }
.modal .modal-foot { padding: 12px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
.form-grid .full { grid-column: 1 / -1; }
.form-item label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
.form-item label .req { color: var(--danger); }
.form-item input, .form-item select, .form-item textarea { width: 100%; height: 34px; border: 1px solid var(--border);
  border-radius: 6px; padding: 0 10px; font-size: 13px; outline: none; }
.form-item textarea { height: auto; padding: 8px 10px; }
.form-item input:focus, .form-item select:focus, .form-item textarea:focus { border-color: var(--primary); }

/* ---------- Tab ---------- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.tabs .tab { padding: 9px 18px; cursor: pointer; font-size: 14px; color: var(--text-2); border-bottom: 2px solid transparent; }
.tabs .tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }

/* ---------- 统计卡片 ---------- */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; }
.stat-card .label { color: var(--text-2); font-size: 13px; }
.stat-card .value { font-size: 28px; font-weight: 700; margin-top: 6px; }
.stat-card .value.red { color: var(--danger); }
.stat-card .value.green { color: var(--success); }
.stat-card .value.orange { color: var(--warning); }
.stat-card .value.blue { color: var(--primary); }

/* ---------- 时间线 ---------- */
.timeline { position: relative; padding-left: 22px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 4px; bottom: 4px; width: 2px; background: var(--border); }
.tl-item { position: relative; padding-bottom: 18px; }
.tl-item::before { content: ""; position: absolute; left: -21px; top: 5px; width: 10px; height: 10px; border-radius: 50%;
  background: var(--primary); border: 2px solid #fff; box-shadow: 0 0 0 2px var(--primary-light); }
.tl-item .tl-time { font-size: 12px; color: var(--text-2); }
.tl-item .tl-body { background: #f8fafd; border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; margin-top: 6px; line-height: 1.7; }
.tl-item .tl-imgs { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.tl-item .tl-imgs img { width: 86px; height: 86px; object-fit: cover; border-radius: 6px; border: 1px solid var(--border); cursor: pointer; }

/* ---------- 图片上传 ---------- */
.uploader { display: flex; gap: 10px; flex-wrap: wrap; }
.uploader .up-btn { width: 86px; height: 86px; border: 1px dashed #b9c6d8; border-radius: 8px; display: flex;
  flex-direction: column; align-items: center; justify-content: center; color: var(--text-2); cursor: pointer; font-size: 12px; gap: 4px; }
.uploader .up-btn:hover { border-color: var(--primary); color: var(--primary); }
.uploader .up-img { position: relative; width: 86px; height: 86px; }
.uploader .up-img img { width: 100%; height: 100%; object-fit: cover; border-radius: 8px; border: 1px solid var(--border); }
.uploader .up-img .del { position: absolute; top: -7px; right: -7px; width: 20px; height: 20px; background: var(--danger);
  color: #fff; border-radius: 50%; text-align: center; line-height: 20px; cursor: pointer; font-size: 12px; }

.qr-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
.qr-item { border: 1px solid var(--border); border-radius: 10px; padding: 12px; text-align: center; }
.qr-item img { width: 110px; height: 110px; }
.qr-item .qr-name { font-size: 12px; margin-top: 8px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.qr-item .qr-code { font-size: 11px; color: var(--text-2); margin-top: 2px; }

.toast { position: fixed; top: 70px; left: 50%; transform: translateX(-50%); background: rgba(30, 40, 55, .92); color: #fff;
  padding: 10px 22px; border-radius: 8px; font-size: 14px; z-index: 999; display: none; }
.empty { text-align: center; color: var(--text-2); padding: 40px 0; font-size: 13px; }

/* 占位页 */
.placeholder-box { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 80px 40px; text-align: center; }
.placeholder-box .icon { font-size: 52px; }
.placeholder-box h2 { margin: 16px 0 8px; font-size: 20px; }
.placeholder-box p { color: var(--text-2); }

@media (max-width: 900px) {
  .sidebar { display: none; }
  .form-grid { grid-template-columns: 1fr; }
}