/* 牙刷报价计算器 - 手机端样式 */

* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #1a5276;
  --primary-light: #2980b9;
  --bg: #f0f2f5;
  --card-bg: #ffffff;
  --input-bg: #fffde7;
  --result-bg: #e8f5e9;
  --highlight: #e65100;
  --text: #333333;
  --text-secondary: #666666;
  --border: #e0e0e0;
  --danger: #c0392b;
  --warning: #e67e22;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  /* 适配刘海屏/挖孔屏安全区域 */
  padding-top: env(safe-area-inset-top, 20px);
}

/* ===== Tab 导航 ===== */
.tab-bar {
  display: flex;
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
  /* 适配刘海屏：把 Tab 栏往下推到安全区域以下 */
  padding-top: env(safe-area-inset-top, 0px);
}

.tab-btn {
  flex: 1;
  padding: 14px 8px;
  border: none;
  background: transparent;
  color: rgba(255,255,255,0.7);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border-bottom: 3px solid transparent;
  /* 最小触控区域 48dp，保证手指好按 */
  min-height: 48px;
  -webkit-tap-highlight-color: rgba(255,255,255,0.2);
}

.tab-btn.active {
  color: #ffffff;
  border-bottom-color: #ffffff;
  background: rgba(255,255,255,0.1);
}

.tab-btn:active {
  background: rgba(255,255,255,0.15);
}

/* ===== 页面容器 ===== */
.pages {
  padding-bottom: 20px;
}

.page {
  display: none;
  padding: 12px;
}

.page.active {
  display: block;
}

/* ===== 卡片 ===== */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 12px;
  padding: 16px;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

/* ===== 表单 ===== */
.form-group {
  margin-bottom: 10px;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-group label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  font-weight: 500;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 15px;
  background: var(--input-bg);
  color: var(--text);
  transition: border-color 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-light);
  background: #ffffff;
}

.form-group select {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-block;
  padding: 10px 18px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--primary-light);
  color: #ffffff;
}

.btn-outline {
  background: transparent;
  color: var(--primary-light);
  border: 1px solid var(--primary-light);
}

.btn-warning {
  background: var(--warning);
  color: #ffffff;
}

.btn-danger {
  background: var(--danger);
  color: #ffffff;
}

.btn-full {
  width: 100%;
  margin-top: 8px;
}

.btn-small {
  display: inline-block;
  padding: 4px 10px;
  border: none;
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
  margin: 2px;
}

/* ===== 操作按钮组 ===== */
.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.action-buttons .btn {
  flex: 1;
  min-width: 0;
  font-size: 13px;
  padding: 10px 8px;
}

/* ===== 报价结果 ===== */
.result-card {
  background: var(--result-bg);
  border: 2px solid #4caf50;
}

.result-summary {
  padding: 8px 0;
}

.result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 0;
  font-size: 14px;
}

.result-row span:first-child {
  color: var(--text-secondary);
}

.result-row span:last-child {
  font-weight: 500;
}

.main-result {
  font-size: 18px;
  padding: 8px 0;
}

.main-result span:last-child {
  font-weight: 700;
}

.price-highlight {
  color: var(--highlight);
  font-size: 22px;
  font-weight: 700;
}

.result-detail {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed #a5d6a7;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.result-table th {
  text-align: left;
  padding: 6px 4px;
  background: #c8e6c9;
  color: var(--text);
  font-weight: 600;
}

.result-table td {
  padding: 5px 4px;
  border-bottom: 1px solid #e0e0e0;
}

.result-table td small {
  color: #999;
  font-size: 11px;
}

.result-table .sub-row td {
  font-weight: 600;
  background: #fff9c4;
}

.result-table .final-row td {
  font-weight: 700;
  font-size: 14px;
  color: var(--highlight);
  background: #fff3e0;
}

.result-table .desc-cell {
  color: #999;
  font-size: 11px;
  padding-top: 8px;
}

/* ===== 可编辑表格 ===== */
.edit-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  overflow-x: auto;
  display: block;
}

.edit-table thead {
  display: table-header-group;
}

.edit-table tbody {
  display: table-row-group;
}

.edit-table tr {
  display: table-row;
}

.edit-table th {
  text-align: left;
  padding: 6px 4px;
  background: #e3f2fd;
  font-weight: 600;
  white-space: nowrap;
}

.edit-table td {
  padding: 4px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.table-input {
  width: 80px;
  padding: 5px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  background: var(--input-bg);
}

.table-input:focus {
  outline: none;
  border-color: var(--primary-light);
}

/* ===== 报价记录 ===== */
.history-item {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px;
  margin-bottom: 8px;
}

.history-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.history-header strong {
  font-size: 14px;
  color: var(--primary);
}

.history-header span {
  font-size: 11px;
  color: #999;
}

.history-body {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.history-actions {
  display: flex;
  gap: 4px;
}

.help-text {
  font-size: 12px;
  color: #999;
  margin-top: 6px;
  line-height: 1.6;
}

/* ===== 滚动条美化 ===== */
::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}

::-webkit-scrollbar-thumb {
  background: #ccc;
  border-radius: 2px;
}

/* ===== 移动端适配 ===== */
@media (max-width: 360px) {
  .tab-btn { font-size: 12px; padding: 10px 4px; }
  .card { padding: 12px; }
  .form-group input, .form-group select { padding: 8px 10px; font-size: 14px; }
}