/* ═══════════════════════════════════════════════
   杞智通 Qizhitong — 全局样式
   枸杞店 AI 智能助手
   ═══════════════════════════════════════════════ */

:root {
  --brand: #e67e22;
  --brand-deep: #d35400;
  --brand-amber: #f39c12;
  --brand-soft: #fff4e6;
  --green: #27ae60;
  --blue: #2980b9;
  --red: #e74c3c;
  --ink: #2c3e50;
  --muted: #7f8c8d;
  --line: #eeddc8;
  --card-shadow: 0 8px 28px rgba(87, 54, 15, 0.08);
}

/* ── Reset ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

/* ── 基础 ── */
body {
  font-family: 'Microsoft YaHei', -apple-system, 'PingFang SC', 'Segoe UI', sans-serif;
  background:
    radial-gradient(1000px 480px at 88% -8%, rgba(230, 126, 34, 0.10), transparent 60%),
    radial-gradient(820px 420px at -6% 108%, rgba(39, 174, 96, 0.07), transparent 55%),
    #f7f1ea;
  color: var(--ink);
  line-height: 1.65;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── 容器 ── */
.container {
  background: #fff;
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--card-shadow);
}
.container-wider { max-width: 1100px; margin: 20px auto; padding: 15px; }
.container-normal { max-width: 900px; margin: 20px auto; padding: 15px; }

/* ── 页头 ── */
h1 {
  color: var(--ink);
  border-bottom: 2px solid #f0e4d5;
  padding-bottom: 12px;
  margin-bottom: 6px;
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
h1::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 110px;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--brand-amber), var(--brand-deep));
}
h1 small { font-size: 14px; color: #888; font-weight: normal; }
h2 { font-size: 16px; color: #555; margin: 20px 0 12px; padding-bottom: 6px; border-bottom: 1px solid #eee; }

/* ── 徽章 ── */
.badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
}
.badge-green { background: var(--green); }
.badge-blue  { background: var(--blue); }
.badge-red   { background: var(--red); }
.badge-active   { background: #e8f5e9; color: #2e7d32; padding: 2px 10px; border-radius: 999px; font-size: 11px; }
.badge-inactive { background: #fdedec; color: #c0392b; padding: 2px 10px; border-radius: 999px; font-size: 11px; }
.badge-sale     { background: #e8f5e9; color: #2e7d32; padding: 2px 8px; border-radius: 999px; font-size: 11px; white-space: nowrap; }
.badge-purchase { background: #e3f2fd; color: #1565c0; padding: 2px 8px; border-radius: 999px; font-size: 11px; white-space: nowrap; }

/* ── 按钮 ── */
.btn {
  display: inline-block;
  padding: 9px 18px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  transition: transform 0.15s, box-shadow 0.2s, filter 0.2s;
  text-decoration: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18); filter: brightness(1.04); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-green  { background: linear-gradient(135deg, #2ecc71, #219a52); }
.btn-orange { background: linear-gradient(135deg, var(--brand-amber), var(--brand-deep)); }
.btn-red    { background: linear-gradient(135deg, #e74c3c, #c0392b); }
.btn-blue   { background: linear-gradient(135deg, #3498db, #2471a3); }
.btn-gray   { background: linear-gradient(135deg, #95a5a6, #7f8c8d); }
.btn-sm     { padding: 4px 10px; font-size: 11px; border-radius: 8px; }
.btn-full   { width: 100%; padding: 12px; font-size: 16px; margin-top: 8px; border-radius: 12px; }

/* ── 消息提示 ── */
.msg { padding: 12px 14px; border-radius: 10px; margin-bottom: 12px; font-size: 13px; }
.msg-ok  { background: #e8f5e9; color: #2e7d32; border: 1px solid #c8e6c9; }
.msg-err { background: #fdedec; color: #c0392b; border: 1px solid #f5c6cb; }

/* ── 卡片 ── */
.card {
  background: #fff;
  border-radius: 20px;
  padding: 40px;
  box-shadow: var(--card-shadow);
  width: 100%;
  max-width: 400px;
  text-align: center;
}

/* ── 表单 ── */
.input-group { margin-bottom: 16px; text-align: left; }
.input-group label { display: block; font-size: 13px; color: #555; margin-bottom: 4px; font-weight: 600; }
.input-group input,
.input-group textarea,
.input-group select {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid #eadfd2;
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.input-group input:focus,
.input-group textarea:focus,
.input-group select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(230, 126, 34, 0.14);
}
.input-group .hint { font-size: 11px; color: #999; margin-top: 4px; }
.form-row { display: flex; gap: 12px; }
.form-row .input-group { flex: 1; }

.form-group { margin-bottom: 12px; }
.form-group label { display: block; font-size: 13px; color: #555; margin-bottom: 4px; font-weight: 600; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 10px 12px; border: 2px solid #eadfd2; border-radius: 10px;
  font-size: 14px; font-family: inherit; background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px rgba(230, 126, 34, 0.14);
}

/* ── 表格 ── */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin: 12px 0;
}
th {
  background: linear-gradient(135deg, var(--brand-amber), var(--brand));
  color: #fff;
  padding: 9px 10px;
  text-align: left;
  font-weight: 700;
  white-space: nowrap;
}
td {
  padding: 8px 10px;
  border-bottom: 1px solid #f1e8da;
}
tr:hover { background: #fff8f0; }
tr:nth-child(even) { background: #faf7f2; }
tr:nth-child(even):hover { background: #fff8f0; }
.col-num { text-align: right; font-variant-numeric: tabular-nums; }

/* ── 导航 ── */
.nav { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.nav a, .nav .nav-btn {
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  background: #fff;
  color: var(--ink);
  border: 1px solid #eadfd2;
  cursor: pointer;
  transition: all 0.2s;
}
.nav a:hover, .nav .nav-btn:hover {
  border-color: var(--brand);
  color: var(--brand-deep);
  background: var(--brand-soft);
  transform: translateY(-1px);
}
.nav a.nav-logout { background: var(--red); color: #fff; border-color: var(--red); }
.nav a.nav-logout:hover { background: #c0392b; color: #fff; border-color: #c0392b; }

/* ── 统计卡片 ── */
.stats { display: flex; gap: 12px; margin-bottom: 16px; }
.stat-box {
  flex: 1;
  background: linear-gradient(180deg, #fff, #fbf7f1);
  padding: 16px 12px;
  border-radius: 14px;
  text-align: center;
  border: 1px solid #f0e4d5;
  box-shadow: 0 2px 8px rgba(120, 80, 30, 0.06);
}
.stat-box .num { font-size: 26px; font-weight: 800; color: var(--brand); font-variant-numeric: tabular-nums; }
.stat-box .label { font-size: 12px; color: #888; margin-top: 4px; }

/* ── 邀请码 ── */
.code {
  font-family: Consolas, 'Courier New', monospace;
  background: #f0e4d5;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 18px;
  letter-spacing: 2px;
  font-weight: bold;
  color: #c0392b;
}

/* ── 模态框 ── */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(30, 20, 10, 0.45);
  backdrop-filter: blur(4px);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}
.modal-overlay.show { display: flex; }
.modal {
  background: #fff;
  border-radius: 20px;
  padding: 30px;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
  animation: modal-in 0.22s ease;
}
@keyframes modal-in {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to   { opacity: 1; transform: none; }
}

/* ── 链接 ── */
.link { color: #888; font-size: 13px; margin-top: 16px; }
.link a { color: var(--brand); text-decoration: none; font-weight: 600; }
.link a:hover { color: var(--brand-deep); }

/* ── 内联表单 ── */
.inline-form { display: inline; }

/* ── 响应式 ── */
@media (max-width: 600px) {
  .container { padding: 18px; }
  .form-row { flex-direction: column; }
  .stats { flex-direction: column; }
}