/* 赵一鸣零食 · 主题样式 */
:root {
  --brand: #ff6b35;
  --brand-dark: #e8551f;
  --brand-light: #fff2ec;
  --brand-soft: #ffe4d8;
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1f1f1f;
  --text-2: #595959;
  --muted: #8c8c8c;
  --line: #eef0f3;
  --up: #f5222d;
  --down: #00a870;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(24, 30, 45, 0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); text-decoration: none; }

/* ---------- 顶栏 ---------- */
.topbar {
  height: 60px;
  background: linear-gradient(100deg, #ff7d4d 0%, var(--brand) 55%, #f2561c 100%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 20;
  box-shadow: 0 2px 10px rgba(255, 107, 53, 0.28);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.brand-logo {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: #fff;
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
}

.brand small {
  font-size: 12px;
  font-weight: 400;
  opacity: 0.85;
  margin-left: 6px;
}

.nav { display: flex; gap: 6px; }

.nav a {
  color: #fff;
  padding: 7px 16px;
  border-radius: 18px;
  font-size: 13px;
  opacity: 0.86;
  transition: all 0.18s;
}

.nav a:hover { background: rgba(255, 255, 255, 0.18); opacity: 1; }

.nav a.active {
  background: #fff;
  color: var(--brand);
  font-weight: 600;
  opacity: 1;
}

/* ---------- 布局 ---------- */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 22px 24px 48px;
}

.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.page-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 4px;
}

.page-sub { color: var(--muted); font-size: 13px; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.card + .card { margin-top: 18px; }

.card-title {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title::before {
  content: "";
  width: 4px;
  height: 15px;
  border-radius: 2px;
  background: var(--brand);
}

/* ---------- 控制条 ---------- */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.field { display: flex; align-items: center; gap: 8px; }

.field label {
  color: var(--text-2);
  font-size: 13px;
  white-space: nowrap;
}

input, select, textarea {
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  background: #fff;
  border: 1px solid #dcdfe5;
  border-radius: 8px;
  padding: 8px 12px;
  outline: none;
  transition: border-color 0.18s, box-shadow 0.18s;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.12);
}

input[type="month"], input[type="date"] { cursor: pointer; }

textarea { resize: vertical; min-height: 64px; width: 100%; }

/* ---------- 按钮 ---------- */
.btn {
  border: none;
  border-radius: 8px;
  padding: 9px 18px;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  background: #f0f2f5;
  color: var(--text-2);
  transition: all 0.18s;
  white-space: nowrap;
}

.btn:hover { background: #e6e9ee; }

.btn-primary {
  background: var(--brand);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(255, 107, 53, 0.28);
}

.btn-primary:hover { background: var(--brand-dark); }

.btn-sm { padding: 5px 12px; font-size: 13px; border-radius: 6px; }

.btn-link {
  background: none;
  color: var(--brand);
  padding: 4px 6px;
}

.btn-link:hover { background: var(--brand-light); }

.btn-danger { color: var(--up); }
.btn-danger:hover { background: #fff1f0; }

/* ---------- 分段切换 ---------- */
.seg {
  display: flex;
  gap: 3px;
  background: #f0f2f5;
  border-radius: 8px;
  padding: 3px;
}

.seg button {
  flex: 1;
  border: none;
  background: transparent;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
  color: var(--text-2);
  cursor: pointer;
  transition: all 0.16s;
  white-space: nowrap;
}

.seg button.active {
  background: #fff;
  color: var(--brand);
  font-weight: 600;
  box-shadow: 0 1px 4px rgba(24, 30, 45, 0.1);
}

/* ---------- 指标卡 ---------- */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.metric {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 20px;
  position: relative;
  overflow: hidden;
}

.metric::after {
  content: "";
  position: absolute;
  right: -26px;
  top: -26px;
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: var(--brand-light);
  opacity: 0.7;
}

.metric-label {
  color: var(--text-2);
  font-size: 13px;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}

.metric-value {
  font-size: 27px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.5px;
  position: relative;
  z-index: 1;
  font-variant-numeric: tabular-nums;
}

.metric-value .unit {
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  margin-left: 3px;
}

.metric-foot {
  margin-top: 10px;
  font-size: 12px;
  color: var(--muted);
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.trend { font-weight: 600; }
.trend.up { color: var(--up); }
.trend.down { color: var(--down); }
.trend.flat { color: var(--muted); }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

th {
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  background: #fafbfc;
  padding: 11px 14px;
  white-space: nowrap;
  border-bottom: 1px solid var(--line);
}

td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

tbody tr:hover { background: var(--brand-light); }

tbody tr:last-child td { border-bottom: none; }

.num { text-align: right; }

.empty {
  text-align: center;
  color: var(--muted);
  padding: 42px 0;
  font-size: 13px;
}

.remark-cell {
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted);
}

/* ---------- 表单 ---------- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px 18px;
}

.form-item { display: flex; flex-direction: column; gap: 7px; }

.form-item label {
  font-size: 13px;
  color: var(--text-2);
  font-weight: 500;
}

.form-item label .req { color: var(--brand); margin-left: 2px; }

.form-item input, .form-item select { width: 100%; }

.form-item.full { grid-column: 1 / -1; }

.form-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
}

.hint { color: var(--muted); font-size: 12px; }

/* ---------- 图表 ---------- */
.chart-box { width: 100%; height: 300px; }

/* ---------- 提示 ---------- */
.toast {
  position: fixed;
  top: 78px;
  left: 50%;
  transform: translateX(-50%) translateY(-12px);
  background: #333;
  color: #fff;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 13px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.24s;
  z-index: 100;
}

.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--up); }
.toast.success { background: var(--down); }

/* ---------- 徽标 ---------- */
.tag {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 10px;
  font-size: 12px;
  background: var(--brand-light);
  color: var(--brand);
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .form-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .metrics { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .container { padding: 16px 12px 40px; }
}