/* ============================================================
 * 单车汇 (BikeHub) - 主样式表
 * ============================================================ */

/* ---- CSS Variables ---- */
:root {
  --dch-primary: #2ecc71;
  --dch-primary-dark: #27ae60;
  --dch-primary-light: #58d68d;
  --dch-accent: #e67e22;
  --dch-text: #2c3e50;
  --dch-text-light: #7f8c8d;
  --dch-bg: #f8f9fa;
  --dch-bg-dark: #1a1a2e;
  --dch-white: #ffffff;
  --dch-border: #e9ecef;
  --dch-shadow: 0 2px 12px rgba(0,0,0,0.08);
  --dch-shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --dch-radius: 12px;
  --dch-radius-sm: 8px;
  --dch-transition: all 0.3s ease;
  --dch-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--dch-font);
  color: var(--dch-text);
  background: var(--dch-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
}

/* ---- Container ---- */
.dch-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---- Header ---- */
.dch-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--dch-border);
  transition: var(--dch-transition);
}

.dch-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.dch-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--dch-primary-dark);
}

.dch-logo-icon {
  display: flex;
  align-items: center;
}

.dch-nav {
  display: flex;
  gap: 4px;
}

.dch-nav-item {
  padding: 8px 16px;
  border-radius: var(--dch-radius-sm);
  font-size: 15px;
  color: var(--dch-text);
  transition: var(--dch-transition);
}

.dch-nav-item:hover,
.dch-nav-item.active {
  color: var(--dch-primary-dark);
  background: rgba(46,204,113,0.08);
}

.dch-header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.dch-header-search {
  padding: 8px;
  border-radius: var(--dch-radius-sm);
  color: var(--dch-text-light);
  cursor: pointer;
  transition: var(--dch-transition);
}

.dch-header-search:hover {
  color: var(--dch-primary-dark);
  background: rgba(46,204,113,0.08);
}

.dch-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.dch-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dch-text);
  border-radius: 2px;
  transition: var(--dch-transition);
}

/* ---- Hero ---- */
.dch-hero {
  position: relative;
  background: linear-gradient(135deg, #0f2027 0%, #203a43 40%, #2c5364 100%);
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.dch-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(46,204,113,0.12) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(52,152,219,0.1) 0%, transparent 40%),
    radial-gradient(circle at 60% 80%, rgba(230,126,34,0.08) 0%, transparent 40%);
  pointer-events: none;
}

.dch-hero-content {
  position: relative;
  z-index: 1;
  padding: 80px 0;
  text-align: center;
}

.dch-hero-content h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.3;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 2px;
}

.dch-hero-desc {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  margin: 0 auto 40px;
}

.dch-hero-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  margin-bottom: 40px;
}

.dch-stat-item {
  text-align: center;
}

.dch-stat-num {
  display: block;
  font-size: 36px;
  font-weight: 700;
  color: var(--dch-primary-light);
  line-height: 1.2;
}

.dch-stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}

.dch-hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* ---- Buttons ---- */
.dch-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border-radius: var(--dch-radius-sm);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--dch-transition);
  border: 2px solid transparent;
}

.dch-btn-primary {
  background: var(--dch-primary);
  color: #fff;
  border-color: var(--dch-primary);
}

.dch-btn-primary:hover {
  background: var(--dch-primary-dark);
  border-color: var(--dch-primary-dark);
}

.dch-btn-outline {
  background: transparent;
  color: var(--dch-primary-dark);
  border-color: var(--dch-primary-dark);
}

.dch-btn-outline:hover {
  background: var(--dch-primary-dark);
  color: #fff;
}

.dch-btn-white {
  background: #fff;
  color: var(--dch-primary-dark);
}

.dch-btn-white:hover {
  background: var(--dch-primary-light);
  color: #fff;
}

.dch-btn-lg {
  padding: 14px 32px;
  font-size: 16px;
  border-radius: var(--dch-radius);
}

.dch-btn-sm {
  padding: 6px 16px;
  font-size: 13px;
}

/* ---- Section ---- */
.dch-section {
  padding: 80px 0;
}

.dch-section-dark {
  background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
  color: #fff;
}

.dch-section-dark .dch-section-header p {
  color: rgba(255,255,255,0.6);
}

.dch-section-gray {
  background: #f0f2f5;
}

.dch-section-header {
  text-align: center;
  margin-bottom: 48px;
}

.dch-section-header h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 10px;
}

.dch-section-header p {
  color: var(--dch-text-light);
  font-size: 16px;
}

.dch-section-line {
  width: 48px;
  height: 3px;
  background: var(--dch-primary);
  margin: 16px auto 0;
  border-radius: 2px;
}

.dch-section-more {
  text-align: center;
  margin-top: 40px;
}

/* ---- Category Grid ---- */
.dch-category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.dch-category-card {
  display: block;
  padding: 32px 24px;
  background: #fff;
  border-radius: var(--dch-radius);
  text-align: center;
  transition: var(--dch-transition);
  border: 1px solid var(--dch-border);
}

.dch-category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--dch-shadow-lg);
}

.dch-category-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.dch-category-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.dch-category-card p {
  font-size: 14px;
  color: var(--dch-text-light);
  margin-bottom: 12px;
}

.dch-category-count {
  font-size: 13px;
  color: var(--dch-primary-dark);
  font-weight: 500;
}

/* ---- Route Grid ---- */
.dch-route-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.dch-route-card {
  background: rgba(255,255,255,0.08);
  border-radius: var(--dch-radius);
  overflow: hidden;
  transition: var(--dch-transition);
  position: relative;
}

.dch-route-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--dch-shadow-lg);
}

.dch-route-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  background: var(--dch-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}

.dch-route-img {
  height: 160px;
  position: relative;
  overflow: hidden;
}

.dch-route-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--dch-transition);
}

.dch-route-overlay span {
  color: #fff;
  font-size: 14px;
  border: 1px solid rgba(255,255,255,0.6);
  padding: 6px 20px;
  border-radius: var(--dch-radius-sm);
}

.dch-route-card:hover .dch-route-overlay {
  opacity: 1;
}

.dch-route-info {
  padding: 16px;
}

.dch-route-info h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.dch-route-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
}

.dch-route-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.dch-route-info p {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  line-height: 1.5;
}

/* ---- News Tabs ---- */
.dch-news-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.dch-tab {
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
  transition: var(--dch-transition);
  background: #fff;
  border: 1px solid var(--dch-border);
}

.dch-tab:hover {
  border-color: var(--dch-primary);
}

.dch-tab.active {
  background: var(--dch-primary);
  color: #fff;
  border-color: var(--dch-primary);
}

/* ---- News Grid ---- */
.dch-news-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  grid-template-rows: auto;
  gap: 20px;
}

.dch-news-featured {
  grid-row: span 2;
}

.dch-news-card {
  background: #fff;
  border-radius: var(--dch-radius);
  overflow: hidden;
  transition: var(--dch-transition);
  border: 1px solid var(--dch-border);
}

.dch-news-card:hover {
  box-shadow: var(--dch-shadow);
}

.dch-news-featured .dch-news-thumb {
  height: 220px;
}

.dch-news-card:not(.dch-news-featured) .dch-news-thumb {
  height: 140px;
}

.dch-news-thumb {
  position: relative;
}

.dch-news-category {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--dch-primary);
  color: #fff;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 4px;
  font-weight: 500;
}

.dch-news-body {
  padding: 16px 20px;
}

.dch-news-featured .dch-news-body h3 {
  font-size: 20px;
  line-height: 1.4;
}

.dch-news-body h3 {
  font-size: 16px;
  margin-bottom: 8px;
  line-height: 1.5;
}

.dch-news-body h3 a:hover {
  color: var(--dch-primary-dark);
}

.dch-news-body p {
  font-size: 14px;
  color: var(--dch-text-light);
  margin-bottom: 12px;
}

.dch-news-meta {
  font-size: 13px;
  color: var(--dch-text-light);
  display: flex;
  gap: 16px;
}

/* ---- Review Grid ---- */
.dch-review-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.dch-review-card {
  background: #fff;
  border-radius: var(--dch-radius);
  overflow: hidden;
  transition: var(--dch-transition);
  border: 1px solid var(--dch-border);
}

.dch-review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--dch-shadow-lg);
}

.dch-review-img {
  height: 160px;
}

.dch-review-info {
  padding: 16px;
  position: relative;
}

.dch-review-score {
  position: absolute;
  top: -16px;
  right: 16px;
  width: 40px;
  height: 40px;
  background: var(--dch-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(46,204,113,0.3);
}

.dch-review-info h3 {
  font-size: 15px;
  margin-bottom: 6px;
  padding-right: 48px;
}

.dch-review-info p {
  font-size: 13px;
  color: var(--dch-text-light);
  margin-bottom: 8px;
}

.dch-review-meta {
  font-size: 12px;
  color: var(--dch-text-light);
}

/* ---- Event List ---- */
.dch-event-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dch-event-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background: #fff;
  border-radius: var(--dch-radius);
  padding: 20px 24px;
  border: 1px solid var(--dch-border);
  transition: var(--dch-transition);
}

.dch-event-item:hover {
  box-shadow: var(--dch-shadow);
}

.dch-event-date {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--dch-primary), var(--dch-primary-dark));
  color: #fff;
  border-radius: var(--dch-radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.dch-event-month {
  font-size: 12px;
  opacity: 0.9;
}

.dch-event-day {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.2;
}

.dch-event-content {
  flex: 1;
}

.dch-event-content h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.dch-event-meta {
  display: flex;
  gap: 20px;
  font-size: 14px;
  color: var(--dch-text-light);
}

/* ---- CTA Section ---- */
.dch-cta {
  background: linear-gradient(135deg, var(--dch-primary-dark), #1abc9c);
  padding: 80px 0;
  text-align: center;
  color: #fff;
}

.dch-cta h2 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
}

.dch-cta p {
  font-size: 18px;
  opacity: 0.85;
  margin-bottom: 32px;
}

.dch-cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
}

/* ---- Footer ---- */
.dch-footer {
  background: var(--dch-bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 24px;
}

.dch-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.dch-footer-brand h3 {
  font-size: 20px;
  color: #fff;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
}

.dch-footer-brand p {
  font-size: 14px;
  line-height: 1.8;
}

.dch-footer-links h4 {
  font-size: 16px;
  color: #fff;
  margin-bottom: 16px;
}

.dch-footer-links ul {
  list-style: none;
}

.dch-footer-links li {
  margin-bottom: 10px;
}

.dch-footer-links a {
  font-size: 14px;
  transition: var(--dch-transition);
}

.dch-footer-links a:hover {
  color: var(--dch-primary-light);
}

.dch-footer-bottom {
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  opacity: 0.6;
}

/* ---- Back to Top ---- */
.dch-backtop {
  position: fixed;
  right: 24px;
  bottom: 40px;
  width: 44px;
  height: 44px;
  background: var(--dch-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: var(--dch-transition);
  box-shadow: 0 4px 12px rgba(46,204,113,0.3);
  z-index: 999;
}

.dch-backtop.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.dch-backtop:hover {
  background: var(--dch-primary-dark);
  transform: translateY(-2px);
}

/* ---- Page Header ---- */
.dch-page-header {
  background: linear-gradient(135deg, #1a1a2e, #2c3e50);
  padding: 48px 0;
  color: #fff;
  text-align: center;
}

.dch-page-header h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 8px;
}

.dch-page-header p {
  font-size: 16px;
  opacity: 0.7;
}

.dch-page-meta {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 16px;
  font-size: 14px;
  opacity: 0.75;
}

.dch-detail-score-badge {
  background: var(--dch-primary);
  color: #fff;
  padding: 2px 10px;
  border-radius: 12px;
  font-weight: 700;
}

/* ---- Breadcrumb ---- */
.dch-breadcrumb {
  margin-bottom: 16px;
  font-size: 14px;
  opacity: 0.65;
}

.dch-breadcrumb a {
  color: rgba(255,255,255,0.85);
}

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

/* ---- Filter Bar ---- */
.dch-filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  padding: 16px 20px;
  background: #fff;
  border-radius: var(--dch-radius);
  border: 1px solid var(--dch-border);
}

.dch-filter-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--dch-text);
}

.dch-filter-item {
  padding: 4px 14px;
  border-radius: 16px;
  font-size: 14px;
  color: var(--dch-text-light);
  transition: var(--dch-transition);
}

.dch-filter-item:hover,
.dch-filter-item.active {
  background: var(--dch-primary);
  color: #fff;
}

/* ---- Category List Sections ---- */
.dch-cat-section {
  margin-bottom: 48px;
}

.dch-cat-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
  padding: 24px;
  background: #fff;
  border-radius: var(--dch-radius);
  border: 1px solid var(--dch-border);
}

.dch-cat-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.dch-cat-info {
  flex: 1;
}

.dch-cat-info h3 {
  font-size: 20px;
  margin-bottom: 4px;
}

.dch-cat-info h3 a:hover {
  color: var(--dch-primary-dark);
}

.dch-cat-info p {
  font-size: 14px;
  color: var(--dch-text-light);
  margin-bottom: 4px;
}

.dch-cat-count {
  font-size: 13px;
  color: var(--dch-primary-dark);
  font-weight: 500;
}

.dch-cat-bikes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.dch-bike-card {
  display: block;
  background: #fff;
  border-radius: var(--dch-radius-sm);
  overflow: hidden;
  border: 1px solid var(--dch-border);
  transition: var(--dch-transition);
}

.dch-bike-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--dch-shadow);
}

.dch-bike-thumb {
  height: 120px;
}

.dch-bike-info {
  padding: 12px;
}

.dch-bike-brand {
  font-size: 12px;
  color: var(--dch-text-light);
}

.dch-bike-info h4 {
  font-size: 14px;
  margin: 2px 0 4px;
  line-height: 1.3;
}

.dch-bike-price {
  font-size: 14px;
  color: var(--dch-accent);
  font-weight: 600;
}

/* ---- Bike Detail Grid ---- */
.dch-bike-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.dch-bike-card-full {
  background: #fff;
  border-radius: var(--dch-radius);
  overflow: hidden;
  border: 1px solid var(--dch-border);
  transition: var(--dch-transition);
}

.dch-bike-card-full:hover {
  box-shadow: var(--dch-shadow-lg);
}

.dch-bike-card-img {
  height: 180px;
}

.dch-bike-card-body {
  padding: 16px;
}

.dch-bike-card-brand {
  font-size: 12px;
  color: var(--dch-text-light);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.dch-bike-card-full h3 {
  font-size: 16px;
  margin: 4px 0 8px;
}

.dch-bike-card-rating {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 8px;
}

.dch-star {
  color: #f1c40f;
  font-size: 14px;
}

.dch-rating-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--dch-text);
  margin-left: 4px;
}

.dch-rating-reviews {
  font-size: 12px;
  color: var(--dch-text-light);
  margin-left: 4px;
}

.dch-bike-card-price {
  font-size: 18px;
  font-weight: 700;
  color: var(--dch-accent);
}

/* ---- Route List Full ---- */
.dch-route-grid-full {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.dch-route-card-full {
  display: block;
  background: #fff;
  border-radius: var(--dch-radius);
  overflow: hidden;
  border: 1px solid var(--dch-border);
  transition: var(--dch-transition);
}

.dch-route-card-full:hover {
  transform: translateY(-3px);
  box-shadow: var(--dch-shadow-lg);
}

.dch-route-card-img {
  height: 180px;
  position: relative;
}

.dch-route-card-type {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(0,0,0,0.5);
  color: #fff;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 12px;
}

.dch-route-card-body {
  padding: 20px;
}

.dch-route-card-body h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.dch-route-card-body p {
  font-size: 14px;
  color: var(--dch-text-light);
  margin-bottom: 12px;
}

.dch-route-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--dch-text-light);
  margin-bottom: 12px;
}

.dch-route-card-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.dch-route-card-tag span {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(46,204,113,0.1);
  color: var(--dch-primary-dark);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

/* ---- Review List Full ---- */
.dch-review-grid-full {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.dch-review-card-full {
  display: block;
  background: #fff;
  border-radius: var(--dch-radius);
  overflow: hidden;
  border: 1px solid var(--dch-border);
  transition: var(--dch-transition);
  position: relative;
}

.dch-review-card-full:hover {
  transform: translateY(-3px);
  box-shadow: var(--dch-shadow-lg);
}

.dch-review-card-img {
  height: 160px;
  position: relative;
}

.dch-review-card-score {
  position: absolute;
  bottom: -18px;
  right: 20px;
  width: 42px;
  height: 42px;
  background: var(--dch-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(46,204,113,0.3);
}

.dch-review-card-body {
  padding: 20px;
}

.dch-review-card-cat {
  font-size: 12px;
  color: var(--dch-primary-dark);
  font-weight: 500;
}

.dch-review-card-full h3 {
  font-size: 17px;
  margin: 4px 30px 6px 0;
  line-height: 1.4;
}

.dch-review-card-body p {
  font-size: 14px;
  color: var(--dch-text-light);
  margin-bottom: 12px;
}

.dch-review-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--dch-text-light);
}

/* ---- Event Card ---- */
.dch-event-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: #fff;
  border-radius: var(--dch-radius);
  padding: 20px;
  border: 1px solid var(--dch-border);
  transition: var(--dch-transition);
}

.dch-event-card:hover {
  box-shadow: var(--dch-shadow);
}

.dch-event-date-box {
  width: 64px;
  height: 64px;
  border-radius: var(--dch-radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.dch-event-body {
  flex: 1;
}

.dch-event-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.dch-event-header h3 {
  font-size: 17px;
}

.dch-event-header h3 a:hover {
  color: var(--dch-primary-dark);
}

.dch-event-body .dch-event-meta {
  margin-bottom: 0;
}

.dch-event-action {
  flex-shrink: 0;
}

/* ---- Badges ---- */
.dch-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.dch-badge-success {
  background: rgba(46,204,113,0.15);
  color: #27ae60;
}

.dch-badge-warning {
  background: rgba(243,156,18,0.15);
  color: #e67e22;
}

.dch-badge-default {
  background: rgba(149,165,166,0.15);
  color: #7f8c8d;
}

/* ---- Detail Layout ---- */
.dch-detail-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 32px;
}

.dch-detail-hero {
  height: 280px;
  border-radius: var(--dch-radius);
  margin-bottom: 24px;
}

.dch-detail-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.dch-detail-stat {
  text-align: center;
  padding: 20px 12px;
  background: #fff;
  border-radius: var(--dch-radius-sm);
  border: 1px solid var(--dch-border);
}

.dch-detail-stat-num {
  display: block;
  font-size: 22px;
  font-weight: 700;
  color: var(--dch-primary-dark);
}

.dch-detail-stat-label {
  font-size: 13px;
  color: var(--dch-text-light);
  margin-top: 4px;
}

.dch-detail-content h3 {
  font-size: 20px;
  margin-bottom: 12px;
  margin-top: 32px;
}

.dch-detail-content h3:first-child {
  margin-top: 0;
}

.dch-detail-content p {
  font-size: 15px;
  line-height: 1.9;
  color: #444;
  margin-bottom: 16px;
}

.dch-detail-intro {
  background: rgba(46,204,113,0.08);
  border-left: 3px solid var(--dch-primary);
  padding: 16px 20px;
  border-radius: 0 var(--dch-radius-sm) var(--dch-radius-sm) 0;
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.dch-detail-list {
  padding-left: 20px;
  margin-bottom: 24px;
}

.dch-detail-list li {
  font-size: 15px;
  line-height: 2;
  color: #444;
}

.dch-detail-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--dch-border);
}

.dch-detail-meta-item strong {
  display: block;
  font-size: 13px;
  color: var(--dch-text-light);
  margin-bottom: 4px;
}

.dch-detail-meta-item span {
  font-size: 15px;
  font-weight: 500;
}

.dch-detail-pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--dch-border);
}

.dch-pros, .dch-cons {
  padding: 20px;
  border-radius: var(--dch-radius-sm);
}

.dch-pros {
  background: rgba(46,204,113,0.08);
}

.dch-cons {
  background: rgba(231,76,60,0.06);
}

.dch-pros h4, .dch-cons h4 {
  font-size: 16px;
  margin-bottom: 12px;
}

.dch-pros h4 { color: #27ae60; }
.dch-cons h4 { color: #c0392b; }

.dch-pros ul, .dch-cons ul {
  list-style: none;
}

.dch-pros li, .dch-cons li {
  font-size: 14px;
  color: #444;
  line-height: 2;
}

.dch-detail-sidebar {
  position: sticky;
  top: 80px;
}

.dch-sidebar-card {
  background: #fff;
  border-radius: var(--dch-radius);
  padding: 20px;
  border: 1px solid var(--dch-border);
  margin-bottom: 16px;
}

.dch-sidebar-card h4 {
  font-size: 16px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--dch-primary);
}

.dch-sidebar-list {
  list-style: none;
}

.dch-sidebar-list li {
  margin-bottom: 10px;
}

.dch-sidebar-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: var(--dch-text);
  padding: 4px 0;
  transition: var(--dch-transition);
}

.dch-sidebar-list a:hover {
  color: var(--dch-primary-dark);
}

.dch-sidebar-list span {
  font-size: 12px;
  color: var(--dch-text-light);
}

/* ---- Timeline ---- */
.dch-timeline {
  position: relative;
  padding-left: 24px;
  border-left: 2px solid var(--dch-primary);
}

.dch-timeline-item {
  position: relative;
  padding: 12px 0 12px 24px;
}

.dch-timeline-item::before {
  content: '';
  position: absolute;
  left: -30px;
  top: 18px;
  width: 10px;
  height: 10px;
  background: var(--dch-primary);
  border-radius: 50%;
  border: 2px solid #fff;
}

.dch-timeline-time {
  font-size: 14px;
  font-weight: 600;
  color: var(--dch-primary-dark);
  margin-bottom: 4px;
}

.dch-timeline-content {
  font-size: 15px;
  color: var(--dch-text);
}

/* ---- Community Grid ---- */
.dch-comm-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.dch-comm-card {
  display: block;
  background: #fff;
  border-radius: var(--dch-radius);
  padding: 28px 24px;
  text-align: center;
  border: 1px solid var(--dch-border);
  transition: var(--dch-transition);
}

.dch-comm-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--dch-shadow-lg);
}

.dch-comm-card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: rgba(46,204,113,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dch-primary-dark);
}

.dch-comm-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.dch-comm-card p {
  font-size: 13px;
  color: var(--dch-text-light);
  margin-bottom: 8px;
}

.dch-comm-count {
  font-size: 13px;
  color: var(--dch-primary-dark);
  font-weight: 500;
}

/* ---- Topic List ---- */
.dch-topic-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dch-topic-item {
  display: flex;
  gap: 16px;
  background: #fff;
  padding: 20px;
  border-radius: var(--dch-radius);
  border: 1px solid var(--dch-border);
  transition: var(--dch-transition);
}

.dch-topic-item:hover {
  box-shadow: var(--dch-shadow);
}

.dch-topic-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  flex-shrink: 0;
}

.dch-topic-body {
  flex: 1;
}

.dch-topic-body h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.dch-topic-body h3 a:hover {
  color: var(--dch-primary-dark);
}

.dch-topic-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--dch-text-light);
}

/* ---- Search ---- */
.dch-search-bar {
  margin-bottom: 32px;
}

.dch-search-bar form {
  display: flex;
  gap: 12px;
}

.dch-search-input {
  flex: 1;
  padding: 14px 20px;
  border: 2px solid var(--dch-border);
  border-radius: var(--dch-radius);
  font-size: 16px;
  font-family: inherit;
  outline: none;
  transition: var(--dch-transition);
}

.dch-search-input:focus {
  border-color: var(--dch-primary);
}

.dch-search-info {
  font-size: 15px;
  color: var(--dch-text-light);
  margin-bottom: 24px;
}

.dch-search-results {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dch-search-item {
  display: block;
  background: #fff;
  border-radius: var(--dch-radius);
  padding: 20px;
  border: 1px solid var(--dch-border);
  transition: var(--dch-transition);
}

.dch-search-item:hover {
  box-shadow: var(--dch-shadow);
}

.dch-search-type {
  font-size: 12px;
  font-weight: 600;
  color: var(--dch-primary-dark);
  margin-bottom: 6px;
  text-transform: uppercase;
}

.dch-search-item h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.dch-search-item h3:hover {
  color: var(--dch-primary-dark);
}

.dch-search-item p {
  font-size: 14px;
  color: var(--dch-text-light);
}

/* ---- Empty State ---- */
.dch-empty {
  text-align: center;
  padding: 60px 20px;
}

.dch-empty svg {
  margin-bottom: 16px;
}

.dch-empty p {
  font-size: 16px;
  color: var(--dch-text-light);
}

/* ---- About ---- */
.dch-about-intro {
  margin-bottom: 60px;
}

.dch-about-intro h3 {
  font-size: 24px;
  margin-bottom: 16px;
}

.dch-about-intro p {
  font-size: 16px;
  line-height: 2;
  color: #444;
  margin-bottom: 12px;
}

.dch-about-timeline {
  margin-bottom: 60px;
}

.dch-timeline-item-about {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 16px 0;
  position: relative;
}

.dch-timeline-item-about::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--dch-border);
}

.dch-timeline-item-about:last-child::before {
  display: none;
}

.dch-timeline-dot {
  width: 12px;
  height: 12px;
  background: var(--dch-primary);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  margin-top: 4px;
}

.dch-timeline-year {
  font-size: 18px;
  font-weight: 700;
  color: var(--dch-primary-dark);
  min-width: 60px;
  flex-shrink: 0;
}

.dch-timeline-desc {
  font-size: 15px;
  color: #444;
  line-height: 1.6;
}

.dch-about-team {
  margin-bottom: 60px;
}

.dch-team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.dch-team-card {
  text-align: center;
  padding: 32px 20px;
  background: #fff;
  border-radius: var(--dch-radius);
  border: 1px solid var(--dch-border);
  transition: var(--dch-transition);
}

.dch-team-card:hover {
  box-shadow: var(--dch-shadow);
}

.dch-team-avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
  font-weight: 700;
  margin: 0 auto 16px;
}

.dch-team-card h4 {
  font-size: 17px;
  margin-bottom: 4px;
}

.dch-team-role {
  font-size: 13px;
  color: var(--dch-primary-dark);
  font-weight: 500;
}

.dch-team-card p {
  font-size: 13px;
  color: var(--dch-text-light);
  margin-top: 8px;
}

.dch-about-contact {
  padding-top: 40px;
  border-top: 1px solid var(--dch-border);
}

.dch-contact-grid {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.dch-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--dch-text);
  font-size: 15px;
}

.dch-contact-item svg {
  color: var(--dch-primary);
  flex-shrink: 0;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .dch-category-grid { grid-template-columns: repeat(2, 1fr); }
  .dch-route-grid { grid-template-columns: repeat(2, 1fr); }
  .dch-review-grid { grid-template-columns: repeat(2, 1fr); }
  .dch-footer-grid { grid-template-columns: repeat(2, 1fr); }
  .dch-cat-bikes { grid-template-columns: repeat(2, 1fr); }
  .dch-bike-grid { grid-template-columns: repeat(2, 1fr); }
  .dch-route-grid-full { grid-template-columns: 1fr; }
  .dch-review-grid-full { grid-template-columns: 1fr; }
  .dch-detail-layout { grid-template-columns: 1fr; }
  .dch-detail-sidebar { position: static; }
  .dch-comm-grid { grid-template-columns: repeat(2, 1fr); }
  .dch-team-grid { grid-template-columns: repeat(2, 1fr); }
  .dch-detail-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .dch-hero-content h1 { font-size: 36px; }
  .dch-hero-stats { flex-wrap: wrap; gap: 32px; }
  .dch-stat-num { font-size: 28px; }

  .dch-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 12px;
    box-shadow: var(--dch-shadow);
  }

  .dch-nav.show { display: flex; }

  .dch-menu-toggle { display: flex; }

  .dch-category-grid { grid-template-columns: 1fr; }
  .dch-route-grid { grid-template-columns: 1fr; }
  .dch-news-grid { grid-template-columns: 1fr; }
  .dch-review-grid { grid-template-columns: 1fr; }
  .dch-footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .dch-cat-bikes { grid-template-columns: 1fr; }
  .dch-bike-grid { grid-template-columns: 1fr; }
  .dch-comm-grid { grid-template-columns: 1fr; }
  .dch-team-grid { grid-template-columns: 1fr; }
  .dch-detail-stats { grid-template-columns: repeat(2, 1fr); }
  .dch-detail-pros-cons { grid-template-columns: 1fr; }
  .dch-detail-meta-grid { grid-template-columns: 1fr; }

  .dch-event-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .dch-event-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .dch-cat-header {
    flex-direction: column;
    text-align: center;
  }

  .dch-section-header h2 { font-size: 26px; }
  .dch-cta h2 { font-size: 28px; }
  .dch-page-header h2 { font-size: 24px; }
}