/* ============================================================
   city-v2.css - 城市计算器页面样式
   现代清爽设计，符合EEAT和UI/UX最佳实践
   ============================================================ */

/* ══════════════════════════════════════════════════
   面包屑导航
   ══════════════════════════════════════════════════ */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  font-size: 15px;
  color: var(--muted);
}

.breadcrumb a {
  color: var(--primary);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb svg {
  flex-shrink: 0;
}

.breadcrumb span[aria-current="page"] {
  color: var(--text);
}

/* Hero区域内的面包屑 - 白色风格 */
.hero .breadcrumb {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 16px;
}

.hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.9);
}

.hero .breadcrumb a:hover {
  color: #fff;
}

.hero .breadcrumb svg {
  opacity: 0.7;
}

.hero .breadcrumb span[aria-current="page"] {
  color: #fff;
  font-weight: 500;
}

/* ══════════════════════════════════════════════════
   Hero - 城市页面
   ══════════════════════════════════════════════════ */
.hero-city {
  padding: 60px 24px 90px;
}

.hero-meta {
  display: flex;
  gap: 20px;
  margin-top: 24px;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  opacity: 0.95;
}

/* ══════════════════════════════════════════════════
   Main Layout
   ══════════════════════════════════════════════════ */
.main-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 32px;
  margin-top: -56px;
  position: relative;
  z-index: 2;
}

.main-content {
  min-width: 0;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.card-sticky {
  position: sticky;
  top: 80px;
}

/* ══════════════════════════════════════════════════
   Calculator Card
   ══════════════════════════════════════════════════ */
.card-calc {
  border: 2px solid var(--border);
  box-shadow: 0 8px 32px rgba(22,119,255,0.12);
}

.calc-body {
  padding: 28px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field label {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.field-hint {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}

.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

.input-prefix {
  position: absolute;
  left: 14px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
}

.input-group input {
  width: 100%;
  padding: 12px 14px 12px 36px;
  border: 2px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  background: var(--bg);
  color: var(--text);
  transition: all 0.2s ease;
}

.input-group input:not([style*="padding-right"]) {
  padding-right: 14px;
}

.input-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(22,119,255,0.1);
}

/* 数字输入框样式 */
.input-group input[type="number"] {
  -moz-appearance: textfield;
}

.input-group input[type="number"]::-webkit-outer-spin-button,
.input-group input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.field select {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
}

.field select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(22,119,255,0.1);
}

/* Checkbox Group */
.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.checkbox-item input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin: 0;
  cursor: pointer;
  accent-color: var(--primary);
}

.checkbox-text {
  font-size: 15px;
  color: var(--text);
}

/* Info Bar */
.info-bar {
  display: flex;
  gap: 32px;
  padding: 16px 20px;
  background: linear-gradient(to right, rgba(22,119,255,0.05), transparent);
  border-radius: 10px;
  margin-bottom: 24px;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.info-label {
  font-size: 13px;
  color: var(--muted);
}

.info-value {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

/* Action Bar */
.action-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #1677ff, #0958d9);
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(22,119,255,0.3);
}

.btn-secondary {
  background: var(--bg);
  color: var(--text);
  border: 2px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
  padding: 8px 16px;
  font-size: 15px;
}

.btn-outline:hover {
  background: var(--primary-light);
}

/* Base Info Bar */
.base-info-bar {
  display: none;
  padding: 14px 20px;
  background: var(--blue-tint);
  border-radius: 10px;
  font-size: 15px;
  color: var(--blue-deep);
  margin-bottom: 24px;
}

[data-theme="dark"] .base-info-bar {
  background: var(--blue-tint);
  color: var(--blue-tint-2);
}

/* Cumulative Info Bar */
.cumulative-info-bar {
  display: none;
  padding: 14px 20px;
  background: #e8f4ff;
  border-radius: 10px;
  font-size: 15px;
  color: #1677ff;
  margin-bottom: 24px;
}

[data-theme="dark"] .cumulative-info-bar {
  background: #1a2d45;
  color: #69b1ff;
}

/* Result Grid */
.result-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.result-item {
  padding: 20px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  transition: all 0.2s ease;
}

.result-item:hover {
  border-color: var(--primary);
}

.result-primary {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, #1677ff, #0958d9);
  border: none;
}

.result-primary .result-label {
  color: rgba(255,255,255,0.9);
}

.result-primary .result-value {
  color: #fff;
  font-size: 32px;
}

.result-label {
  font-size: 15px;
  color: var(--muted);
  margin-bottom: 8px;
}

.result-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
}

/* ══════════════════════════════════════════════════
   Detail Table
   ══════════════════════════════════════════════════ */
.table-wrapper {
  overflow-x: auto;
  padding: 0 24px;
}

.detail-table {
  width: 100%;
  border-collapse: collapse;
}

.detail-table th {
  padding: 14px 16px;
  text-align: left;
  font-size: 15px;
  font-weight: 700;
  color: var(--muted);
  background: linear-gradient(to right, #f0f6ff, #e8f4ff);
  border-bottom: 2px solid var(--border);
}

[data-theme="dark"] .detail-table th {
  background: linear-gradient(to right, #1e2d45, #1a2940);
}

.detail-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}

.detail-table tr:hover td {
  background: var(--primary-light);
}

.col-personal {
  color: #1677ff;
}

.col-unit {
  color: #10b981;
}

.help-tip {
  display: inline-flex;
  margin-left: 6px;
  color: var(--muted);
  cursor: help;
}

/* Charts */
.charts-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 24px;
}

.chart-box {
  background: var(--bg);
  border-radius: 12px;
  padding: 20px;
}

.chart-box-large {
  /* 与普通chart-box保持一致 */
}

.chart-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.chart-area {
  height: 600px;
}

/* ══════════════════════════════════════════════════
   Prose Content
   ══════════════════════════════════════════════════ */
.prose {
  line-height: 1.8;
  color: var(--text);
}

.prose section {
  margin-bottom: 32px;
}

.prose h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text);
}

.prose p {
  font-size: 15px;
  margin-bottom: 12px;
}

.prose ul {
  padding-left: 24px;
}

.prose li {
  margin-bottom: 8px;
  font-size: 15px;
}

/* Ratio Grid */
.ratio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 20px 0px;
}

.ratio-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  transition: all 0.2s ease;
}

.ratio-card:hover {
  border-color: var(--primary);
}

.ratio-card-highlight {
  background: var(--primary-light);
  border-color: #93c0ff;
}

.ratio-name {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.ratio-values {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ratio-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 15px;
}

.ratio-row .label {
  color: var(--muted);
}

.ratio-row .value {
  font-weight: 700;
  color: var(--text);
}

.ratio-row.unit .value {
  color: #10b981;
}

/* ══════════════════════════════════════════════════
   FAQ
   ══════════════════════════════════════════════════ */
.faq-list {
  padding: 8px 24px 24px;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  background: none;
  border: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: color 0.2s ease;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-icon {
  transition: transform 0.3s ease;
  color: var(--muted);
}

.faq-question.open .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding: 0 0 16px 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

/* ══════════════════════════════════════════════════
   Sidebar Components
   ══════════════════════════════════════════════════ */
.base-table-mini {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.bmr-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 16px;
  padding: 10px 14px;
  font-size: 15px;
  border-bottom: 1px solid var(--border);
}

.bmr-row:last-child {
  border-bottom: none;
}

.bmr-row.header {
  background: var(--primary-light);
  font-weight: 700;
  font-size: 13px;
}

.bmr-row .num {
  font-weight: 600;
  text-align: right;
}

.bmr-row .num.hl {
  color: var(--primary);
}

.source-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
}

/* City List */
.city-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.city-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  color: var(--text);
  transition: all 0.2s ease;
}

.city-link:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
}

.city-name {
  font-weight: 600;
}

/* Nav List */
.nav-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pill-link {
  display: block;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.pill-link:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.pill-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.pill-desc {
  font-size: 13px;
  color: var(--muted);
}

/* ══════════════════════════════════════════════════
   Bottom Section
   ══════════════════════════════════════════════════ */
.bottom-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 32px;
}

/* News List */
.news-list {
  display: flex;
  flex-direction: column;
}

.news-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: var(--text);
  transition: all 0.15s ease;
}

.news-link:last-child {
  border-bottom: none;
}

.news-link:hover {
  color: var(--primary);
  background: var(--primary-light);
  margin: 0 -20px;
  padding: 14px 20px;
  border-radius: 10px;
  border-color: transparent;
}

.news-tag {
  background: var(--primary-light);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 99px;
  white-space: nowrap;
  flex-shrink: 0;
}

.news-title {
  flex: 1;
  font-size: 15px;
  font-weight: 600;
}

.news-date {
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}

/* Link List */
.link-list {
  display: flex;
  flex-direction: column;
}

.ext-link {
  display: block;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  transition: all 0.15s ease;
}

.ext-link:last-child {
  border-bottom: none;
}

.ext-link:hover {
  color: var(--primary);
}

.ext-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.ext-desc {
  font-size: 13px;
  color: var(--muted);
}

/* ══════════════════════════════════════════════════
   响应式设计
   ══════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .main-layout {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    order: -1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  .card-sticky {
    position: static;
  }
  
  .ratio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .bottom-section {
    grid-template-columns: 1fr;
  }
  
  .charts-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-city {
    padding: 40px 20px 70px;
  }
  
  .hero-title {
    font-size: 26px;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .info-bar {
    flex-wrap: wrap;
    gap: 16px;
  }
  
  .result-grid {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    grid-template-columns: 1fr;
  }
  
  .ratio-grid {
    grid-template-columns: 1fr;
  }
  
  .table-wrapper {
    padding: 0 16px;
  }
  
  .calc-body {
    padding: 20px 16px;
  }
}

@media (max-width: 480px) {
  .hero-meta {
    flex-direction: column;
    gap: 12px;
  }
  
  .action-bar {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}

/* 无障碍优化 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}