:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-light: #eef2ff;
  --bg: #f4f5fa;
  --card: #ffffff;
  --border: #e5e7eb;
  --text: #1f2937;
  --text-sub: #6b7280;
  --green: #059669;
  --orange: #d97706;
  --red: #dc2626;
  --blue: #2563eb;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg); color: var(--text); font-size: 14px;
}
a { color: var(--primary); text-decoration: none; }
button { font-family: inherit; }

/* ---------- 登录页 ---------- */
.login-wrap {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #312e81 0%, #4f46e5 55%, #7c3aed 100%); padding: 16px;
}
.login-card {
  background: #fff; border-radius: 16px; padding: 40px 36px; width: 380px; max-width: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.login-card .logo { text-align: center; margin-bottom: 28px; }
.login-card .logo .logo-img { width: 88px; height: 88px; object-fit: contain; border-radius: 20px; }
.login-card .logo h1 { font-size: 22px; margin-top: 12px; }
.login-card .logo p { color: var(--text-sub); font-size: 13px; margin-top: 4px; }
.brand-logo { width: 26px; height: 26px; object-fit: contain; border-radius: 6px; vertical-align: -6px; margin-right: 7px; }
.login-hint { margin-top: 16px; text-align: center; color: var(--text-sub); font-size: 12px; }

/* ---------- 布局 ---------- */
.shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 200px; background: #171a33; color: #cbd0f0; flex-shrink: 0;
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh;
}
.sidebar .brand { padding: 20px 18px 16px; font-size: 16px; font-weight: 700; color: #fff; border-bottom: 1px solid rgba(255,255,255,.08); }
.sidebar .brand .star { margin-right: 6px; }
.sidebar nav { flex: 1; padding: 10px 0; overflow-y: auto; }
.sidebar nav a {
  display: flex; align-items: center; gap: 10px; padding: 11px 18px; color: #a5abdb;
  font-size: 14px; border-left: 3px solid transparent;
}
.sidebar nav a:hover { color: #fff; background: rgba(255,255,255,.05); }
.sidebar nav a.active { color: #fff; background: rgba(99,102,241,.25); border-left-color: #818cf8; }
.sidebar .userbox { padding: 14px 18px; border-top: 1px solid rgba(255,255,255,.08); font-size: 13px; }
.sidebar .userbox .role { color: #7c84c4; font-size: 12px; margin-top: 2px; }
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  height: 56px; background: var(--card); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; padding: 0 20px; gap: 12px;
  position: sticky; top: 0; z-index: 20;
}
.topbar .menu-btn { display: none; background: none; border: none; font-size: 20px; cursor: pointer; }
.topbar-title { font-size: 16px; font-weight: 600; flex: 1; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.content { padding: 20px; max-width: 1280px; width: 100%; margin: 0 auto; }

/* ---------- 卡片 / 统计 ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin-bottom: 18px; }
.card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 16px 18px; margin-bottom: 18px;
}
.stat-card .label { color: var(--text-sub); font-size: 13px; }
.stat-card .value { font-size: 26px; font-weight: 700; margin-top: 6px; }
.stat-card .value.warn { color: var(--orange); }
.stat-card .value.danger { color: var(--red); }
.stat-card .sub { color: var(--text-sub); font-size: 12px; margin-top: 4px; }
.card h3 { font-size: 15px; margin-bottom: 12px; display: flex; align-items: center; justify-content: space-between; }
.card h3 .more { font-size: 12px; font-weight: 400; color: var(--text-sub); }
.section-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.section-grid .card { margin-bottom: 0; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th {
  text-align: left; color: var(--text-sub); font-weight: 500; padding: 8px 10px;
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
td { padding: 10px; border-bottom: 1px solid #f1f2f6; white-space: nowrap; vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tbody tr.clickable { cursor: pointer; }
tbody tr.clickable:hover { background: #f8f9ff; }
.empty { text-align: center; color: var(--text-sub); padding: 26px 0 !important; }

/* ---------- 徽章 ---------- */
.badge {
  display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 12px; white-space: nowrap;
}
.badge.green { background: #ecfdf5; color: var(--green); }
.badge.orange { background: #fffbeb; color: var(--orange); }
.badge.red { background: #fef2f2; color: var(--red); }
.badge.blue { background: #eff6ff; color: var(--blue); }
.badge.gray { background: #f3f4f6; color: var(--text-sub); }
.badge.purple { background: var(--primary-light); color: var(--primary); }

/* ---------- 按钮 / 表单 ---------- */
.btn {
  border: none; border-radius: 8px; padding: 8px 15px; font-size: 13.5px; cursor: pointer;
  background: var(--primary); color: #fff; transition: background .15s;
}
.btn:hover { background: var(--primary-dark); }
.btn.ghost { background: #fff; color: var(--text); border: 1px solid var(--border); }
.btn.ghost:hover { background: #f9fafb; }
.btn.danger { background: #fff; color: var(--red); border: 1px solid #fecaca; }
.btn.danger:hover { background: #fef2f2; }
.btn.sm { padding: 4px 10px; font-size: 12.5px; border-radius: 6px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; align-items: center; }
.filter-bar input, .filter-bar select {
  padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 13.5px; background: #fff;
}
.filter-bar .spacer { flex: 1; }
input.f, select.f, textarea.f {
  width: 100%; padding: 9px 11px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; font-family: inherit; background: #fff;
}
input.f:focus, select.f:focus, textarea.f:focus { outline: none; border-color: var(--primary); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px; }
.form-grid .full { grid-column: 1 / -1; }
.form-item label { display: block; font-size: 13px; color: var(--text-sub); margin-bottom: 5px; }

/* ---------- 弹窗 / 提示 ---------- */
.overlay {
  position: fixed; inset: 0; background: rgba(17,24,39,.45); z-index: 100;
  display: flex; align-items: flex-start; justify-content: center; padding: 60px 16px 16px; overflow-y: auto;
}
.modal { background: #fff; border-radius: 14px; width: 520px; max-width: 100%; box-shadow: 0 20px 50px rgba(0,0,0,.25); }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px 0; }
.modal-head h3 { font-size: 16px; }
.modal-head .x { background: none; border: none; font-size: 16px; cursor: pointer; color: var(--text-sub); }
.modal-body { padding: 16px 20px 20px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; margin-top: 18px; }
.toast {
  position: fixed; top: 70px; left: 50%; transform: translateX(-50%); z-index: 200;
  background: #111827; color: #fff; padding: 10px 18px; border-radius: 10px; font-size: 13.5px;
  box-shadow: 0 6px 20px rgba(0,0,0,.25); animation: fadein .2s;
}
.toast.err { background: var(--red); }
@keyframes fadein { from { opacity: 0; transform: translate(-50%, -8px); } }

/* ---------- 其他 ---------- */
.chips { display: flex; gap: 10px; flex-wrap: wrap; margin: 10px 0 18px; }
.chip {
  background: var(--primary-light); color: var(--primary); border-radius: 10px; padding: 10px 16px; font-size: 13px;
}
.chip b { display: block; font-size: 18px; margin-top: 2px; }
.chip.green { background: #ecfdf5; color: var(--green); }
.chip.orange { background: #fffbeb; color: var(--orange); }
.back-link { display: inline-block; margin-bottom: 12px; color: var(--text-sub); font-size: 13px; cursor: pointer; }
.insights li { margin: 8px 0 8px 18px; line-height: 1.55; }
.subtabs { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.subtabs .btn.ghost.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.chart { width: 100%; height: 320px; }
.recent-item { display: flex; gap: 10px; padding: 9px 0; border-bottom: 1px solid #f1f2f6; font-size: 13.5px; align-items: baseline; }
.recent-item:last-child { border-bottom: none; }
.recent-item .tag { flex-shrink: 0; }
.recent-item .date { margin-left: auto; color: var(--text-sub); font-size: 12px; flex-shrink: 0; }
.danger-zone { border: 1px dashed #fecaca; border-radius: var(--radius); padding: 16px 18px; background: #fff; }
.danger-zone h3 { color: var(--red); }
.site-footer { text-align: center; padding: 18px 0 26px; font-size: 12px; color: var(--text-sub); }
.site-footer a { color: var(--text-sub); text-decoration: none; }
.site-footer a:hover { color: var(--primary); }
.login-wrap .site-footer { position: fixed; left: 0; right: 0; bottom: 0; padding: 12px; color: rgba(255,255,255,.75); }
.login-wrap .site-footer a { color: rgba(255,255,255,.75); }
.login-wrap .site-footer a:hover { color: #fff; }
.card-line {
  display: flex; align-items: center; gap: 10px; background: #f8f9ff;
  border: 1px solid var(--border); border-radius: 8px; padding: 6px 10px; margin-bottom: 6px; font-size: 13px;
}
.card-line b { color: var(--primary); }
.card-line .x { margin-left: auto; background: none; border: none; cursor: pointer; color: var(--text-sub); font-size: 12.5px; }
.card-line .x:hover { color: var(--red); }

/* ---------- 移动端 ---------- */
@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .section-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .card h3 { flex-wrap: wrap; row-gap: 2px; }
  .card h3 .more { flex-basis: 100%; }
  #pwaInstall { width: 100%; }
  .sidebar { position: fixed; left: -220px; z-index: 50; transition: left .2s; }
  .sidebar.open { left: 0; box-shadow: 0 0 40px rgba(0,0,0,.4); }
  .topbar .menu-btn { display: block; }
  .content { padding: 14px; }
  .stat-card .value { font-size: 21px; }
  .form-grid { grid-template-columns: 1fr; }
  td, th { padding: 8px 6px; }
  .overlay { padding: 30px 10px 10px; }
}

/* ---------- 经营建议（分区版） ---------- */
.adv-bar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.adv-total { font-size: 12.5px; color: var(--text-sub); }
.adv-sumchip { font-size: 12.5px; font-weight: 600; cursor: pointer; padding: 2px 9px; border-radius: 999px; background: #f6f7fb; }
.adv-sumchip:hover { background: var(--primary-light); }
.adv-expand { margin-left: auto; font-size: 12.5px; color: var(--primary); cursor: pointer; }
.adv-sec { padding-top: 10px; }
.adv-head { display: flex; align-items: center; gap: 7px; cursor: pointer; padding: 4px 0 8px; user-select: none; }
.adv-head b { font-size: 13.5px; }
.adv-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.adv-num { font-size: 12.5px; font-weight: 700; }
.adv-caret { margin-left: auto; font-size: 12px; color: var(--text-sub); }
.adv-body { display: flex; flex-direction: column; gap: 8px; }
.adv-item { background: #fafbfc; border: 1px solid #f1f2f6; border-radius: 8px; padding: 9px 12px; }
.adv-line { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.adv-cat { font-size: 11.5px; font-weight: 600; padding: 1px 7px; border-radius: 999px; flex-shrink: 0; }
.adv-title { font-weight: 600; font-size: 13.5px; }
.adv-detail { color: var(--text-sub); font-size: 12.8px; margin-top: 4px; line-height: 1.6; }
.adv-pills { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 7px; align-items: center; }
.adv-pill { font-size: 12px; padding: 2px 9px; border-radius: 999px; background: var(--primary-light); color: var(--primary); }
a.adv-pill:hover { background: var(--primary); color: #fff; }
.adv-pill.tag { background: #f3f4f6; color: var(--text-sub); }
.adv-pill.go { background: #ecfdf5; color: var(--green); font-weight: 600; margin-left: auto; }
.adv-pill.go:hover { background: var(--green); color: #fff; }
@media (max-width: 760px) { .adv-pill.go { margin-left: 0; } }