/*
Theme Name: 单车志 Bicycling
Theme URI: https://danche.bicycling
Author: 单车志团队
Author URI: https://danche.bicycling
Description: 专为单车志骑行社群网站设计的 WordPress 主题，支持赛事、产品评测、视频、教程等多种内容类型。响应式设计，绿色品牌配色，二次开发友好。
Version: 1.0.0
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: danche-bicycling
Tags: cycling, magazine, responsive, custom-post-types, video, green
*/

/* ============================================================
   单车志 Bicycling - 全局样式系统
   配色基于品牌绿色 Logo
   ============================================================ */

/* CSS Variables - 品牌设计系统 */
:root {
  /* Primary - 品牌绿 */
  --dc-primary: #2E8B57;
  --dc-primary-light: #3CB371;
  --dc-primary-dark: #1E5E3A;
  --dc-primary-rgb: 46, 139, 87;

  /* Secondary - 活力橙红 */
  --dc-secondary: #FF6B35;
  --dc-secondary-light: #FF8C5A;
  --dc-secondary-dark: #E55A2B;

  /* Accent - 科技蓝 */
  --dc-accent: #4FC3F7;
  --dc-accent-light: #81D4FA;

  /* Neutral */
  --dc-bg: #FAFAFA;
  --dc-surface: #FFFFFF;
  --dc-text: #1A1A1A;
  --dc-text-secondary: #666666;
  --dc-text-muted: #999999;
  --dc-border: #E8E8E8;
  --dc-border-light: #F0F0F0;

  /* Semantic */
  --dc-success: #22C55E;
  --dc-warning: #F59E0B;
  --dc-error: #EF4444;
  --dc-info: #3B82F6;

  /* Spacing Scale (8px base) */
  --dc-space-1: 4px;
  --dc-space-2: 8px;
  --dc-space-3: 12px;
  --dc-space-4: 16px;
  --dc-space-5: 20px;
  --dc-space-6: 24px;
  --dc-space-8: 32px;
  --dc-space-10: 40px;
  --dc-space-12: 48px;
  --dc-space-16: 64px;
  --dc-space-20: 80px;

  /* Typography */
  --dc-font-heading: 'Montserrat', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --dc-font-body: 'Open Sans', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --dc-font-mono: 'DIN Alternate', 'Roboto Mono', monospace;

  /* Border Radius */
  --dc-radius-sm: 4px;
  --dc-radius-md: 8px;
  --dc-radius-lg: 12px;
  --dc-radius-xl: 16px;
  --dc-radius-full: 9999px;

  /* Shadows */
  --dc-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --dc-shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --dc-shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --dc-shadow-primary: 0 4px 16px rgba(46,139,87,0.25);

  /* Transitions */
  --dc-transition-fast: 150ms ease;
  --dc-transition-base: 250ms ease;
  --dc-transition-slow: 400ms ease;

  /* Layout */
  --dc-header-height: 72px;
  --dc-container-max: 1320px;
  --dc-sidebar-width: 320px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--dc-font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--dc-text);
  background-color: var(--dc-bg);
  word-wrap: break-word;
  overflow-x: hidden;
}

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

a {
  color: var(--dc-primary);
  text-decoration: none;
  transition: color var(--dc-transition-fast);
}

a:hover {
  color: var(--dc-primary-dark);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--dc-font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--dc-text);
  margin-bottom: var(--dc-space-4);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--dc-space-4);
}

ul, ol {
  margin-bottom: var(--dc-space-4);
  padding-left: var(--dc-space-6);
}

/* Container */
.dc-container {
  width: 100%;
  max-width: var(--dc-container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--dc-space-4);
  padding-right: var(--dc-space-4);
}

@media (min-width: 768px) {
  .dc-container {
    padding-left: var(--dc-space-6);
    padding-right: var(--dc-space-6);
  }
}

@media (min-width: 1024px) {
  .dc-container {
    padding-left: var(--dc-space-6);
    padding-right: var(--dc-space-6);
  }
}

/* Grid System */
.dc-row {
  display: flex;
  flex-wrap: wrap;
  margin-left: calc(var(--dc-space-3) * -1);
  margin-right: calc(var(--dc-space-3) * -1);
}

.dc-col {
  padding-left: var(--dc-space-3);
  padding-right: var(--dc-space-3);
  flex: 1 0 0%;
}

.dc-col-12 { flex: 0 0 100%; max-width: 100%; }
.dc-col-6  { flex: 0 0 50%; max-width: 50%; }
.dc-col-4  { flex: 0 0 33.333%; max-width: 33.333%; }
.dc-col-3  { flex: 0 0 25%; max-width: 25%; }

@media (min-width: 768px) {
  .dc-col-md-6 { flex: 0 0 50%; max-width: 50%; }
  .dc-col-md-4 { flex: 0 0 33.333%; max-width: 33.333%; }
  .dc-col-md-3 { flex: 0 0 25%; max-width: 25%; }
}

@media (min-width: 1024px) {
  .dc-col-lg-4 { flex: 0 0 33.333%; max-width: 33.333%; }
  .dc-col-lg-3 { flex: 0 0 25%; max-width: 25%; }
}

/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */

.dc-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--dc-header-height);
  background: var(--dc-surface);
  border-bottom: 1px solid var(--dc-border);
  z-index: 1000;
  transition: box-shadow var(--dc-transition-base);
}

.dc-header.is-scrolled {
  box-shadow: var(--dc-shadow-md);
}

.dc-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.dc-logo {
  display: flex;
  align-items: center;
  gap: var(--dc-space-3);
}

.dc-logo img {
  height: 40px;
  width: auto;
}

.dc-logo-text {
  font-family: var(--dc-font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dc-primary);
  letter-spacing: -0.5px;
}

.dc-logo-text span {
  color: var(--dc-text);
  font-weight: 400;
  font-size: 1rem;
  margin-left: var(--dc-space-2);
}

/* Main Navigation */
.dc-nav {
  display: none;
}

@media (min-width: 1024px) {
  .dc-nav {
    display: flex;
    align-items: center;
    gap: var(--dc-space-1);
  }
}

.dc-nav-link {
  display: flex;
  align-items: center;
  padding: var(--dc-space-2) var(--dc-space-3);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--dc-text);
  border-radius: var(--dc-radius-md);
  transition: all var(--dc-transition-fast);
}

.dc-nav-link:hover {
  color: var(--dc-primary);
  background: rgba(var(--dc-primary-rgb), 0.06);
}

.dc-nav-link.is-active {
  color: var(--dc-primary);
  background: rgba(var(--dc-primary-rgb), 0.1);
}

/* Dropdown */
.dc-nav-item {
  position: relative;
}

.dc-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 200px;
  background: var(--dc-surface);
  border-radius: var(--dc-radius-lg);
  box-shadow: var(--dc-shadow-lg);
  padding: var(--dc-space-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--dc-transition-base);
}

.dc-nav-item:hover .dc-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dc-dropdown-link {
  display: block;
  padding: var(--dc-space-2) var(--dc-space-3);
  font-size: 0.875rem;
  color: var(--dc-text);
  border-radius: var(--dc-radius-md);
  transition: all var(--dc-transition-fast);
}

.dc-dropdown-link:hover {
  color: var(--dc-primary);
  background: rgba(var(--dc-primary-rgb), 0.06);
}

/* Header Actions */
.dc-header-actions {
  display: flex;
  align-items: center;
  gap: var(--dc-space-3);
}

.dc-search-btn,
.dc-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  background: transparent;
  border-radius: var(--dc-radius-md);
  cursor: pointer;
  color: var(--dc-text);
  transition: all var(--dc-transition-fast);
}

.dc-search-btn:hover,
.dc-menu-btn:hover {
  background: var(--dc-border-light);
  color: var(--dc-primary);
}

.dc-menu-btn {
  display: flex;
}

@media (min-width: 1024px) {
  .dc-menu-btn {
    display: none;
  }
}

/* Search Overlay */
.dc-search-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--dc-transition-base);
}

.dc-search-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.dc-search-panel {
  position: absolute;
  top: var(--dc-header-height);
  left: 0;
  right: 0;
  background: var(--dc-surface);
  padding: var(--dc-space-6);
  transform: translateY(-100%);
  transition: transform var(--dc-transition-base);
}

.dc-search-overlay.is-open .dc-search-panel {
  transform: translateY(0);
}

.dc-search-form {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}

.dc-search-input {
  width: 100%;
  padding: var(--dc-space-4) var(--dc-space-5);
  padding-left: 48px;
  font-size: 1.125rem;
  border: 2px solid var(--dc-border);
  border-radius: var(--dc-radius-xl);
  background: var(--dc-bg);
  outline: none;
  transition: border-color var(--dc-transition-fast);
}

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

.dc-search-icon {
  position: absolute;
  left: var(--dc-space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--dc-text-muted);
}

/* Mobile Menu */
.dc-mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--dc-surface);
  z-index: 1500;
  padding: var(--dc-space-6);
  transform: translateX(100%);
  transition: transform var(--dc-transition-base);
  overflow-y: auto;
}

.dc-mobile-menu.is-open {
  transform: translateX(0);
}

.dc-mobile-menu-close {
  position: absolute;
  top: var(--dc-space-4);
  right: var(--dc-space-4);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: transparent;
  font-size: 1.5rem;
  cursor: pointer;
}

.dc-mobile-nav {
  margin-top: var(--dc-space-12);
}

.dc-mobile-nav-link {
  display: block;
  padding: var(--dc-space-3) 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--dc-text);
  border-bottom: 1px solid var(--dc-border-light);
}

.dc-mobile-nav-link:hover {
  color: var(--dc-primary);
}

.dc-mobile-subnav {
  padding-left: var(--dc-space-4);
  margin-bottom: var(--dc-space-3);
}

.dc-mobile-subnav-link {
  display: block;
  padding: var(--dc-space-2) 0;
  font-size: 0.9375rem;
  color: var(--dc-text-secondary);
}

.dc-mobile-subnav-link:hover {
  color: var(--dc-primary);
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */

.dc-main {
  padding-top: var(--dc-header-height);
  min-height: 100vh;
}

/* ============================================================
   HERO SECTION
   ============================================================ */

.dc-hero {
  position: relative;
  background: linear-gradient(135deg, var(--dc-primary-dark) 0%, var(--dc-primary) 100%);
  padding: var(--dc-space-16) 0;
  overflow: hidden;
}

.dc-hero-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.dc-hero-inner {
  position: relative;
  z-index: 1;
}

.dc-hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: var(--dc-space-4);
  line-height: 1.2;
}

.dc-hero-subtitle {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: var(--dc-space-8);
  max-width: 560px;
}

.dc-hero-actions {
  display: flex;
  gap: var(--dc-space-4);
  flex-wrap: wrap;
}

/* ============================================================
   BUTTONS
   ============================================================ */

.dc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--dc-space-2);
  padding: var(--dc-space-3) var(--dc-space-6);
  font-family: var(--dc-font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: var(--dc-radius-md);
  cursor: pointer;
  transition: all var(--dc-transition-fast);
  white-space: nowrap;
}

.dc-btn-primary {
  background: var(--dc-primary);
  color: #fff;
  box-shadow: var(--dc-shadow-sm);
}

.dc-btn-primary:hover {
  background: var(--dc-primary-dark);
  color: #fff;
  box-shadow: var(--dc-shadow-primary);
  transform: translateY(-1px);
}

.dc-btn-secondary {
  background: transparent;
  color: var(--dc-primary);
  border: 2px solid var(--dc-primary);
}

.dc-btn-secondary:hover {
  background: var(--dc-primary);
  color: #fff;
}

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

.dc-btn-white:hover {
  background: rgba(255,255,255,0.9);
  color: var(--dc-primary-dark);
}

.dc-btn-lg {
  padding: var(--dc-space-4) var(--dc-space-8);
  font-size: 1rem;
}

.dc-btn-sm {
  padding: var(--dc-space-2) var(--dc-space-4);
  font-size: 0.875rem;
}

/* ============================================================
   SECTIONS
   ============================================================ */

.dc-banner-bar {
  background: linear-gradient(135deg, var(--dc-primary-dark), var(--dc-primary));
  color: #fff;
  padding: 12px 0;
  text-align: center;
  font-size: 0.9375rem;
}

.dc-banner-bar .dc-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--dc-space-3);
  flex-wrap: wrap;
}

.dc-banner-icon {
  font-size: 1.125rem;
}

.dc-banner-text {
  font-weight: 500;
}

.dc-banner-link {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 2px;
  font-size: 0.875rem;
  opacity: 0.9;
}

.dc-banner-link:hover {
  opacity: 1;
}

/* Banner 网格布局（支持1/2/3栏） */
.dc-banner-section {
  padding-top: var(--dc-space-8);
  padding-bottom: var(--dc-space-8);
}
.dc-banner-grid {
  display: grid;
  gap: var(--dc-space-4);
}
.dc-banner-grid--1 {
  grid-template-columns: 1fr;
}
.dc-banner-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}
.dc-banner-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}
.dc-banner-item {
  display: block;
  border-radius: var(--dc-radius-md);
  overflow: hidden;
  transition: transform 0.3s ease;
}
.dc-banner-item:hover {
  transform: translateY(-4px);
}
.dc-banner-item img {
  width: 100%;
  height: auto;
  display: block;
}
@media (max-width: 768px) {
  .dc-banner-grid--2,
  .dc-banner-grid--3 {
    grid-template-columns: 1fr;
  }
}

.dc-section {
  padding: var(--dc-space-16) 0;
}

.dc-section-alt {
  background: var(--dc-bg); /* 改为背景灰色以区分区块 */
}

/* 统一网格布局：一排三个 */
.dc-grid-3-2 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--dc-space-6);
}

/* 统一卡片样式 */
.dc-card-uniform {
  background: var(--dc-surface);
  border-radius: var(--dc-radius-lg);
  overflow: hidden;
  box-shadow: var(--dc-shadow-sm);
  transition: all var(--dc-transition-base);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.dc-card-uniform:hover {
  transform: translateY(-4px);
  box-shadow: var(--dc-shadow-md);
}

.dc-card-thumb {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.dc-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dc-card-body {
  padding: var(--dc-space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.dc-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: var(--dc-space-3);
  color: var(--dc-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.8em;
}

.dc-card-meta {
  font-size: 0.8125rem;
  color: var(--dc-text-muted);
  margin-top: auto;
  font-family: var(--dc-font-mono);
}

@media (max-width: 960px) {
  .dc-grid-3-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .dc-grid-3-2 {
    grid-template-columns: 1fr;
  }
}

.dc-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--dc-space-8);
  flex-wrap: wrap;
  gap: var(--dc-space-4);
}

/* 标题副标题区域 */
.dc-section-subtitle {
  display: flex;
  align-items: center;
  gap: var(--dc-space-3);
}

.dc-section-subtitle-text {
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--dc-text-muted);
}

/* 黑色文字版本 */
.dc-section-subtitle-black {
  color: #000;
}

/* 列表区域顶部标题 */
.dc-list-side-header {
  margin-bottom: var(--dc-space-4);
  padding-bottom: var(--dc-space-3);
  border-bottom: 1px solid var(--dc-border);
}

.dc-section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--dc-text);
  display: flex;
  align-items: center;
  gap: var(--dc-space-3);
}

.dc-section-title::before {
  content: '';
  display: block;
  width: 4px;
  height: 28px;
  background: var(--dc-primary);
  border-radius: var(--dc-radius-full);
}

.dc-section-more {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--dc-primary);
  display: flex;
  align-items: center;
  gap: var(--dc-space-1);
}

.dc-section-more:hover {
  color: var(--dc-primary-dark);
}

/* Tab 组件 */
.dc-tabs-nav {
  display: flex;
  gap: var(--dc-space-2);
  margin-bottom: var(--dc-space-6);
}

.dc-tabs-btn {
  padding: var(--dc-space-3) var(--dc-space-5);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--dc-text-secondary);
  background: transparent;
  border: 1px solid var(--dc-border);
  border-radius: var(--dc-radius-md);
  cursor: pointer;
  transition: all var(--dc-transition-fast);
}

.dc-tabs-btn:hover {
  color: var(--dc-primary);
  border-color: var(--dc-primary-light);
}

.dc-tabs-btn.is-active {
  color: var(--dc-primary);
  background: rgba(var(--dc-primary-rgb), 0.08);
  border-color: var(--dc-primary);
}

.dc-tab-panel {
  display: none;
}

.dc-tab-panel.is-active {
  display: block;
}

/* ============================================================
   CARDS
   ============================================================ */

.dc-card {
  background: var(--dc-surface);
  border-radius: var(--dc-radius-lg);
  overflow: hidden;
  box-shadow: var(--dc-shadow-sm);
  transition: all var(--dc-transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.dc-card:hover {
  box-shadow: var(--dc-shadow-md);
  transform: translateY(-4px);
}

.dc-card-image {
  position: relative;
  padding-top: 56.25%; /* 16:9 */
  overflow: hidden;
  background: var(--dc-border-light);
}

.dc-card-image img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dc-transition-slow);
}

.dc-card:hover .dc-card-image img {
  transform: scale(1.05);
}

.dc-card-category {
  position: absolute;
  top: var(--dc-space-3);
  left: var(--dc-space-3);
  padding: var(--dc-space-1) var(--dc-space-3);
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  background: var(--dc-primary);
  border-radius: var(--dc-radius-sm);
  z-index: 2;
}

.dc-card-body {
  padding: var(--dc-space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.dc-card-title {
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--dc-text);
  margin-bottom: var(--dc-space-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dc-card:hover .dc-card-title {
  color: var(--dc-primary);
}

.dc-card-excerpt {
  font-size: 0.875rem;
  color: var(--dc-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--dc-space-4);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.dc-card-meta {
  display: flex;
  align-items: center;
  gap: var(--dc-space-3);
  font-size: 0.8125rem;
  color: var(--dc-text-muted);
}

.dc-card-meta-item {
  display: flex;
  align-items: center;
  gap: var(--dc-space-1);
}

/* Video Card */
.dc-card-video .dc-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
}

.dc-card-video .dc-card-image::before {
  content: '▶';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.95);
  border-radius: var(--dc-radius-full);
  color: var(--dc-primary);
  font-size: 1.25rem;
  z-index: 2;
  box-shadow: var(--dc-shadow-md);
}

/* Race Card */
.dc-card-race .dc-card-meta {
  flex-wrap: wrap;
}

.dc-race-tag {
  display: inline-flex;
  align-items: center;
  padding: var(--dc-space-1) var(--dc-space-2);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--dc-radius-sm);
}

.dc-race-tag--upcoming {
  background: rgba(79,195,247,0.15);
  color: #0288D1;
}

.dc-race-tag--ongoing {
  background: rgba(34,197,94,0.15);
  color: #16A34A;
}

.dc-race-tag--finished {
  background: rgba(153,153,153,0.15);
  color: #666;
}

/* Product Card */
.dc-card-product .dc-card-image {
  padding-top: 75%; /* 4:3 */
}

.dc-product-rating {
  display: flex;
  align-items: center;
  gap: var(--dc-space-1);
  margin-bottom: var(--dc-space-2);
}

.dc-product-rating-star {
  color: #FFB800;
  font-size: 0.875rem;
}

.dc-product-price {
  font-family: var(--dc-font-mono);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--dc-secondary);
}

/* ============================================================
   POST SINGLE
   ============================================================ */

.dc-single {
  padding: var(--dc-space-12) 0;
}

.dc-single-header {
  margin-bottom: var(--dc-space-8);
}

.dc-single-category {
  display: inline-flex;
  padding: var(--dc-space-1) var(--dc-space-3);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--dc-primary);
  background: rgba(var(--dc-primary-rgb), 0.1);
  border-radius: var(--dc-radius-sm);
  margin-bottom: var(--dc-space-4);
}

.dc-single-title {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--dc-space-4);
}

.dc-single-meta {
  display: flex;
  align-items: center;
  gap: var(--dc-space-4);
  flex-wrap: wrap;
  color: var(--dc-text-secondary);
  font-size: 0.9375rem;
}

.dc-single-author {
  display: flex;
  align-items: center;
  gap: var(--dc-space-2);
}

.dc-single-author-avatar-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--dc-radius-full);
  overflow: hidden;
  background: rgba(var(--dc-primary-rgb), 0.12);
  color: var(--dc-primary);
  flex-shrink: 0;
}

.dc-single-author-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--dc-radius-full);
  object-fit: cover;
  display: block;
}

.dc-single-author-avatar-fallback {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 0.9375rem;
  font-weight: 700;
}

.dc-single-author-name {
  font-weight: 600;
  color: var(--dc-text);
}

.dc-single-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.dc-single-featured {
  margin-bottom: var(--dc-space-8);
  border-radius: var(--dc-radius-lg);
  overflow: hidden;
}

.dc-single-featured img {
  width: 100%;
  height: auto;
}

.dc-single-content {
  font-size: 1.0625rem;
  line-height: 1.85;
}

.dc-single-content h2 {
  font-size: 1.5rem;
  margin-top: var(--dc-space-10);
  margin-bottom: var(--dc-space-4);
  padding-bottom: var(--dc-space-3);
  border-bottom: 2px solid var(--dc-border);
}

.dc-single-content h3 {
  font-size: 1.25rem;
  margin-top: var(--dc-space-8);
}

.dc-single-content p {
  margin-bottom: var(--dc-space-5);
}

.dc-single-content img {
  border-radius: var(--dc-radius-md);
  margin: var(--dc-space-6) 0;
}

.dc-single-content blockquote {
  margin: var(--dc-space-6) 0;
  padding: var(--dc-space-5) var(--dc-space-6);
  background: rgba(var(--dc-primary-rgb), 0.05);
  border-left: 4px solid var(--dc-primary);
  border-radius: 0 var(--dc-radius-md) var(--dc-radius-md) 0;
  font-style: italic;
}

.dc-single-content ul,
.dc-single-content ol {
  margin-bottom: var(--dc-space-5);
}

.dc-single-content li {
  margin-bottom: var(--dc-space-2);
}

.dc-single-tags {
  margin-top: var(--dc-space-10);
  padding-top: var(--dc-space-6);
  border-top: 1px solid var(--dc-border);
}

.dc-tag {
  display: inline-flex;
  padding: var(--dc-space-1) var(--dc-space-3);
  font-size: 0.8125rem;
  color: var(--dc-text-secondary);
  background: var(--dc-border-light);
  border-radius: var(--dc-radius-sm);
  margin-right: var(--dc-space-2);
  margin-bottom: var(--dc-space-2);
  transition: all var(--dc-transition-fast);
}

.dc-tag:hover {
  background: var(--dc-primary);
  color: #fff;
}

/* ============================================================
   SIDEBAR
   ============================================================ */

.dc-sidebar {
  display: none;
}

@media (min-width: 1024px) {
  .dc-sidebar {
    display: block;
    width: var(--dc-sidebar-width);
    flex-shrink: 0;
  }
}

.dc-widget {
  background: var(--dc-surface);
  border-radius: var(--dc-radius-lg);
  padding: var(--dc-space-6);
  margin-bottom: var(--dc-space-6);
  box-shadow: var(--dc-shadow-sm);
}

.dc-widget-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--dc-space-4);
  padding-bottom: var(--dc-space-3);
  border-bottom: 2px solid var(--dc-border);
}

.dc-widget-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.dc-widget-list li {
  padding: var(--dc-space-3) 0;
  border-bottom: 1px solid var(--dc-border-light);
}

.dc-widget-list li:last-child {
  border-bottom: none;
}

.dc-widget-list a {
  color: var(--dc-text);
  font-size: 0.9375rem;
  line-height: 1.5;
  display: block;
}

.dc-widget-list a:hover {
  color: var(--dc-primary);
}

.dc-widget-list .dc-meta {
  font-size: 0.8125rem;
  color: var(--dc-text-muted);
  margin-top: var(--dc-space-1);
}

/* ============================================================
   PAGINATION
   ============================================================ */

.dc-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--dc-space-2);
  margin-top: var(--dc-space-12);
}

.dc-pagination a,
.dc-pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--dc-space-3);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--dc-radius-md);
  transition: all var(--dc-transition-fast);
}

.dc-pagination a {
  color: var(--dc-text);
  background: var(--dc-surface);
}

.dc-pagination a:hover {
  background: var(--dc-primary);
  color: #fff;
}

.dc-pagination .current {
  background: var(--dc-primary);
  color: #fff;
}

/* ============================================================
   FOOTER
   ============================================================ */

.dc-footer {
  background: var(--dc-text);
  color: rgba(255,255,255,0.7);
  padding: var(--dc-space-16) 0 var(--dc-space-8);
}

.dc-footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--dc-space-10);
  margin-bottom: var(--dc-space-12);
}

@media (min-width: 768px) {
  .dc-footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .dc-footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.dc-footer-brand {
  max-width: 320px;
}

.dc-footer-logo {
  font-family: var(--dc-font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: var(--dc-space-4);
}

.dc-footer-logo span {
  color: var(--dc-primary-light);
  font-weight: 400;
  font-size: 1rem;
}

.dc-footer-brand-logo {
  display: block;
  max-width: 180px;
  height: auto;
  margin-bottom: var(--dc-space-4);
}

.dc-footer-desc {
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: var(--dc-space-6);
}

.dc-footer-social {
  display: flex;
  gap: var(--dc-space-3);
}

.dc-footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--dc-radius-md);
  color: #fff;
  transition: all var(--dc-transition-fast);
}

.dc-footer-social a:hover {
  background: var(--dc-primary);
  transform: translateY(-2px);
}

.dc-footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--dc-space-5);
}

.dc-footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.dc-footer-links li {
  margin-bottom: var(--dc-space-3);
}

.dc-footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9375rem;
  transition: color var(--dc-transition-fast);
}

.dc-footer-links a:hover {
  color: #fff;
}

.dc-footer-bottom {
  padding-top: var(--dc-space-6);
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--dc-space-3);
  text-align: center;
  font-size: 0.875rem;
}

@media (min-width: 768px) {
  .dc-footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* 页脚二维码 */
.dc-footer-qr {
  display: flex;
  gap: var(--dc-space-4);
  align-items: flex-start;
}

.dc-qr-item {
  text-align: center;
}

.dc-qr-item img {
  width: 88px;
  height: 88px;
  border-radius: 4px;
  display: block;
  margin-bottom: var(--dc-space-2);
}

.dc-qr-item span {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.7);
  white-space: nowrap;
}

/* ============================================================
   UTILITIES
   ============================================================ */

.dc-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.dc-text-center { text-align: center; }
.dc-text-right { text-align: right; }
.dc-hidden { display: none !important; }

@media (min-width: 768px) {
  .dc-md-hidden { display: none !important; }
  .dc-md-block { display: block !important; }
}

@media (min-width: 1024px) {
  .dc-lg-hidden { display: none !important; }
  .dc-lg-block { display: block !important; }
}

/* Loading Skeleton */
@keyframes dc-skeleton {
  0% { background-position: -200px 0; }
  100% { background-position: calc(200px + 100%) 0; }
}

.dc-skeleton {
  background: linear-gradient(90deg, var(--dc-border-light) 25%, var(--dc-border) 50%, var(--dc-border-light) 75%);
  background-size: 200px 100%;
  animation: dc-skeleton 1.5s infinite;
  border-radius: var(--dc-radius-md);
}

/* ============================================================
   WORDPRESS DEFAULTS OVERRIDE
   ============================================================ */

.aligncenter {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.alignleft {
  float: left;
  margin-right: var(--dc-space-6);
  margin-bottom: var(--dc-space-4);
}

.alignright {
  float: right;
  margin-left: var(--dc-space-6);
  margin-bottom: var(--dc-space-4);
}

.wp-caption {
  max-width: 100%;
  margin-bottom: var(--dc-space-4);
}

.wp-caption-text {
  font-size: 0.875rem;
  color: var(--dc-text-secondary);
  text-align: center;
  padding: var(--dc-space-2);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--dc-space-4);
  margin-bottom: var(--dc-space-6);
}

.gallery-item {
  margin: 0;
}

.gallery-item img {
  border-radius: var(--dc-radius-md);
}

/* Comments */
.dc-comments {
  margin-top: var(--dc-space-12);
  padding-top: var(--dc-space-8);
  border-top: 1px solid var(--dc-border);
}

.dc-comments-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--dc-space-6);
}

.comment-list {
  list-style: none;
  padding: 0;
}

.comment {
  padding: var(--dc-space-5) 0;
  border-bottom: 1px solid var(--dc-border-light);
}

.comment-author {
  display: flex;
  align-items: center;
  gap: var(--dc-space-3);
  margin-bottom: var(--dc-space-3);
}

.comment-author .avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--dc-radius-full);
}

.comment-meta {
  font-size: 0.875rem;
  color: var(--dc-text-muted);
}

.comment-content {
  padding-left: 52px;
}

.comment-reply-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dc-primary);
}

/* Comment Form */
.dc-comment-form input[type="text"],
.dc-comment-form input[type="email"],
.dc-comment-form input[type="url"],
.dc-comment-form textarea {
  width: 100%;
  padding: var(--dc-space-3) var(--dc-space-4);
  font-family: var(--dc-font-body);
  font-size: 1rem;
  border: 1px solid var(--dc-border);
  border-radius: var(--dc-radius-md);
  background: var(--dc-surface);
  outline: none;
  transition: border-color var(--dc-transition-fast);
  margin-bottom: var(--dc-space-4);
}

.dc-comment-form input:focus,
.dc-comment-form textarea:focus {
  border-color: var(--dc-primary);
}

.dc-comment-form textarea {
  min-height: 120px;
  resize: vertical;
}

.dc-comment-form input[type="submit"] {
  background: var(--dc-primary);
  color: #fff;
  border: none;
  padding: var(--dc-space-3) var(--dc-space-8);
  font-weight: 600;
  border-radius: var(--dc-radius-md);
  cursor: pointer;
  transition: background var(--dc-transition-fast);
}

.dc-comment-form input[type="submit"]:hover {
  background: var(--dc-primary-dark);
}

/* ============================================================
   RESPONSIVE OVERRIDES
   ============================================================ */

@media (max-width: 767px) {
  h1 { font-size: 1.75rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }

  .dc-hero {
    padding: var(--dc-space-10) 0;
  }

  .dc-hero-title {
    font-size: 1.75rem;
  }

  .dc-section {
    padding: var(--dc-space-10) 0;
  }

  .dc-single {
    padding: var(--dc-space-8) 0;
  }

  .dc-single-title {
    font-size: 1.5rem;
  }

  .dc-card-image {
    padding-top: 60%; /* slightly taller on mobile */
  }

  /* 轮播 caption 移动端适配 — 防止文字重叠 */
  .dc-carousel-caption {
    padding: var(--dc-space-4) var(--dc-space-4) var(--dc-space-4);
  }
  .dc-carousel-title {
    font-size: 1rem;
    -webkit-line-clamp: 1;
    margin-bottom: var(--dc-space-1);
  }
  .dc-carousel-excerpt {
    display: none; /* 移动端隐藏摘要，避免与底部元素重叠 */
  }
  .dc-carousel-tag {
    font-size: 0.6875rem;
    padding: 2px 8px;
    margin-bottom: var(--dc-space-1);
  }
  .dc-carousel-dots {
    bottom: var(--dc-space-2);
  }

  /* 友情链接移动端适配 — 防止按钮过大/LOGO 失真 */
  .dc-friend-links {
    gap: var(--dc-space-2);
    padding-left: var(--dc-space-3);
    padding-right: var(--dc-space-3);
  }
  .dc-friend-link {
    padding: var(--dc-space-2) var(--dc-space-3);
    font-size: 0.8125rem;
    gap: var(--dc-space-2);
  }
  .dc-friend-link__img {
    width: 32px;
    height: 32px;
  }
  .dc-friend-link__img img {
    max-width: 28px;
    max-height: 28px;
  }
}

/* Print Styles */
@media print {
  .dc-header,
  .dc-footer,
  .dc-sidebar,
  .dc-comments,
  .dc-pagination {
    display: none !important;
  }

  .dc-main {
    padding-top: 0;
  }

  body {
    background: #fff;
    color: #000;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}
/* ============================================================
   首页重构新增样式
   轮播 + 侧边栏 + 列表 + 赛事大图 + 友情链接
   ============================================================ */

/* ---------- 两栏轮播布局 ---------- */
.dc-layout-carousel {
  display: flex;
  gap: var(--dc-space-6);
  flex-wrap: wrap;
  align-items: flex-start;
}

.dc-carousel-wrap {
  flex: 1 1 0;
  min-width: 0;
  max-width: 60%;
}

.dc-list-side {
  flex: 0 0 360px;
  max-width: 40%;
  display: flex;
  flex-direction: column;
  gap: var(--dc-space-3);
}

@media (max-width: 1023px) {
  .dc-layout-carousel {
    flex-direction: column;
  }
  .dc-carousel-wrap,
  .dc-list-side {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

/* ---------- 轮播组件 ---------- */
.dc-carousel {
  position: relative;
  border-radius: var(--dc-radius-lg);
  overflow: hidden;
  background: var(--dc-surface);
  box-shadow: var(--dc-shadow-sm);
  aspect-ratio: 16 / 10;
}

.dc-carousel-item {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 500ms ease, visibility 500ms ease;
}

.dc-carousel-item.is-active {
  opacity: 1;
  visibility: visible;
}

.dc-carousel-link {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
}

.dc-carousel-image {
  position: absolute;
  inset: 0;
}

.dc-carousel-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dc-carousel-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--dc-space-8) var(--dc-space-6) var(--dc-space-6);
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.3) 60%, transparent 100%);
  color: #fff;
}

.dc-carousel-tag {
  display: inline-flex;
  padding: var(--dc-space-1) var(--dc-space-3);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--dc-primary);
  color: #fff;
  border-radius: var(--dc-radius-sm);
  margin-bottom: var(--dc-space-2);
}

.dc-carousel-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--dc-space-2);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dc-carousel-excerpt {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.85);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 轮播箭头 */
.dc-carousel-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.9);
  border: none;
  border-radius: var(--dc-radius-full);
  font-size: 1.5rem;
  color: var(--dc-text);
  cursor: pointer;
  z-index: 10;
  transition: all var(--dc-transition-fast);
  box-shadow: var(--dc-shadow-md);
}

.dc-carousel-arrow:hover {
  background: #fff;
  color: var(--dc-primary);
}

.dc-carousel-prev { left: var(--dc-space-4); }
.dc-carousel-next { right: var(--dc-space-4); }

/* 轮播指示器 */
.dc-carousel-dots {
  position: absolute;
  bottom: var(--dc-space-4);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--dc-space-2);
  z-index: 10;
}

.dc-carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--dc-radius-full);
  border: none;
  background: rgba(255,255,255,0.5);
  cursor: pointer;
  transition: all var(--dc-transition-fast);
  padding: 0;
}

.dc-carousel-dot.is-active {
  background: #fff;
  width: 24px;
  border-radius: 4px;
}

/* ---------- 右侧列表 ---------- */
.dc-list-item {
  display: flex;
  gap: var(--dc-space-3);
  padding: var(--dc-space-3);
  border-radius: var(--dc-radius-md);
  transition: all var(--dc-transition-fast);
  text-decoration: none;
}

.dc-list-item:hover {
  background: var(--dc-bg);
}

.dc-list-thumb {
  flex-shrink: 0;
  width: 120px;
  height: 78px;
  border-radius: var(--dc-radius-sm);
  overflow: hidden;
}

.dc-list-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dc-list-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--dc-space-1);
}

.dc-list-tag {
  display: inline-flex;
  align-self: flex-start;
  padding: 1px var(--dc-space-2);
  font-size: 0.6875rem;
  font-weight: 600;
  border-radius: var(--dc-radius-sm);
}

.dc-list-tag--news,
.dc-list-tag--最新报道 { background: rgba(46,139,87,0.12); color: var(--dc-primary); }
.dc-list-tag--product,
.dc-list-tag--新品推荐 { background: rgba(255,107,53,0.12); color: var(--dc-secondary); }
.dc-list-tag--product-test,
.dc-list-tag--产品测试 { background: rgba(255,107,53,0.12); color: var(--dc-secondary); }
.dc-list-tag--单车赛事 { background: rgba(79,195,247,0.12); color: var(--dc-accent); }

.dc-list-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--dc-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dc-list-item:hover .dc-list-title {
  color: var(--dc-primary);
}

/* ---------- 赛事专区 + 侧边栏布局 ---------- */
.dc-layout-with-sidebar {
  display: flex;
  gap: var(--dc-space-8);
  flex-wrap: wrap;
}

.dc-main-col {
  flex: 1 1 0;
  min-width: 0;
  max-width: calc(100% - 360px);
}

.dc-sidebar-home {
  flex: 0 0 320px;
  max-width: 320px;
}

@media (max-width: 1023px) {
  .dc-layout-with-sidebar {
    flex-direction: column;
  }
  .dc-main-col,
  .dc-sidebar-home {
    flex: 0 0 100%;
    max-width: 100%;
  }
}

/* ---------- 赛事大图 ---------- */
.dc-race-featured {
  border-radius: var(--dc-radius-lg);
  overflow: hidden;
  margin-bottom: var(--dc-space-4);
  position: relative;
  aspect-ratio: 16 / 9;
}

.dc-race-featured-link {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
}

.dc-race-featured-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dc-race-featured-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--dc-space-8) var(--dc-space-5) var(--dc-space-5);
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 100%);
}

.dc-race-featured-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 赛事小图 */
.dc-race-sub {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--dc-space-4);
  margin-bottom: var(--dc-space-4);
}

.dc-race-sub-item {
  display: block;
  position: relative;
  border-radius: var(--dc-radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.dc-race-sub-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dc-transition-slow);
}

.dc-race-sub-item:hover img {
  transform: scale(1.05);
}

.dc-race-sub-title {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--dc-space-4) var(--dc-space-3) var(--dc-space-3);
  background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 赛事列表 */
.dc-race-list {
  display: flex;
  flex-direction: column;
  gap: var(--dc-space-3);
}

.dc-race-list-item {
  display: flex;
  flex-wrap: wrap;
  gap: var(--dc-space-2) var(--dc-space-4);
  padding: var(--dc-space-3) 0;
  border-bottom: 1px solid var(--dc-border-light);
  text-decoration: none;
  align-items: baseline;
}

.dc-race-list-item:last-child {
  border-bottom: none;
}

.dc-race-list-date {
  font-size: 0.8125rem;
  color: var(--dc-text-muted);
  font-family: var(--dc-font-mono);
}

.dc-race-list-author {
  font-size: 0.8125rem;
  color: var(--dc-text-secondary);
}

.dc-race-list-title {
  flex: 0 0 100%;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--dc-text);
  line-height: 1.4;
  margin-top: var(--dc-space-1);
}

.dc-race-list-item:hover .dc-race-list-title {
  color: var(--dc-primary);
}

/* 赛事子板块 */
.dc-race-subsection {
  margin-bottom: var(--dc-space-8);
}
.dc-race-subsection:last-child {
  margin-bottom: 0;
}
.dc-race-subtitle {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--dc-primary);
  margin-bottom: var(--dc-space-4);
  padding-left: var(--dc-space-3);
  border-left: 3px solid var(--dc-primary);
}
.dc-race-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--dc-space-4);
}
@media (max-width: 1023px) {
  .dc-race-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 639px) {
  .dc-race-grid {
    grid-template-columns: 1fr;
  }
}
.dc-race-grid-item {
  display: block;
  position: relative;
  border-radius: var(--dc-radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 10;
}
.dc-race-grid-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dc-transition-slow);
}
.dc-race-grid-item:hover img {
  transform: scale(1.05);
}
.dc-race-grid-title {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--dc-space-4) var(--dc-space-3) var(--dc-space-3);
  background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 侧边栏 ---------- */
.dc-sidebar-block {
  background: var(--dc-surface);
  border-radius: var(--dc-radius-lg);
  padding: var(--dc-space-5);
  margin-bottom: var(--dc-space-6);
  box-shadow: var(--dc-shadow-sm);
}

.dc-sidebar-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--dc-text);
  margin-bottom: var(--dc-space-4);
  padding-bottom: var(--dc-space-3);
  border-bottom: 2px solid var(--dc-primary);
  display: inline-block;
}

.dc-sidebar-list {
  display: flex;
  flex-direction: column;
  gap: var(--dc-space-3);
}

.dc-sidebar-item {
  display: flex;
  flex-direction: column;
  gap: var(--dc-space-1);
  padding: var(--dc-space-2) 0;
  text-decoration: none;
  border-bottom: 1px solid var(--dc-border-light);
}

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

.dc-sidebar-item-thumb {
  width: 100%;
  height: 100px;
  border-radius: var(--dc-radius-md);
  overflow: hidden;
  margin-bottom: var(--dc-space-2);
}

.dc-sidebar-item-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dc-sidebar-item-date {
  font-size: 0.75rem;
  color: var(--dc-text-muted);
  font-family: var(--dc-font-mono);
}

.dc-sidebar-item-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dc-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dc-sidebar-item:hover .dc-sidebar-item-title {
  color: var(--dc-primary);
}

.dc-sidebar-empty {
  font-size: 0.875rem;
  color: var(--dc-text-muted);
  padding: var(--dc-space-4) 0;
  text-align: center;
}

/* ============================================================
   首页全局两栏布局：左侧内容 + 右侧侧边栏
   ============================================================ */

.dc-home-layout {
  display: flex;
  gap: var(--dc-space-8);
  flex-wrap: wrap;
  padding-top: var(--dc-space-16);
  padding-bottom: var(--dc-space-16);
}

.dc-home-main {
  flex: 1 1 0;
  min-width: 0;
  max-width: calc(100% - 360px);
}

.dc-home-sidebar {
  flex: 0 0 320px;
  max-width: 320px;
}

/* 左栏内部 section 只保留上下间距 */
.dc-section-inner {
  padding: var(--dc-space-12) 0;
}

.dc-section-inner:first-child {
  padding-top: 0;
}

.dc-section-inner:last-child {
  padding-bottom: 0;
}

.dc-section-alt .dc-section-inner {
  background: transparent;
}

@media (max-width: 1023px) {
  .dc-home-layout {
    flex-direction: column;
    gap: var(--dc-space-8);
  }
  .dc-home-main,
  .dc-home-sidebar {
    flex: 0 0 100%;
    max-width: 100%;
  }
  .dc-section-inner {
    padding: var(--dc-space-8) 0;
  }
}

/* ---------- 侧边栏条目（缩略图+标题横向排列） ---------- */
.dc-sidebar-item {
  display: flex;
  gap: var(--dc-space-3);
  padding: var(--dc-space-2) 0;
  text-decoration: none;
  border-bottom: 1px solid var(--dc-border-light);
  align-items: flex-start;
}

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

.dc-sidebar-item-thumb-sm {
  flex-shrink: 0;
  width: 260px;
  height: 140px;
  border-radius: var(--dc-radius-sm);
  overflow: hidden;
  margin-bottom: var(--dc-space-2);
}

.dc-sidebar-item-thumb-sm img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dc-sidebar-item-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--dc-space-1);
}

.dc-sidebar-item-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--dc-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.dc-sidebar-item:hover .dc-sidebar-item-title {
  color: var(--dc-primary);
}

.dc-sidebar-item-date {
  font-size: 0.75rem;
  color: var(--dc-text-muted);
  font-family: var(--dc-font-mono);
}

.dc-sidebar-item-meta {
  font-size: 0.75rem;
  color: var(--dc-text-muted);
  margin-top: 4px;
}

/* ---------- 赛事预告侧边栏 ---------- */
.dc-race-preview-col {
  display: flex;
  flex-direction: column;
  align-self: start;
}
.dc-race-preview-list {
  display: flex;
  flex-direction: column;
  gap: var(--dc-space-2);
}

/* 赛事/活动区域：左右两栏顶部对齐 */
.dc-race-area-row {
  align-items: start;
}
.dc-race-main-col {
  display: flex;
  flex-direction: column;
}
.dc-race-main-col .dc-grid-3-2 {
  flex: 1;
}
.dc-race-main-col .dc-grid-3-2 .dc-card-uniform {
  height: 100%;
}
.dc-race-main-col .dc-card-thumb {
  aspect-ratio: 16 / 10;
}
.dc-race-banner-a2 {
  margin-top: var(--dc-space-6);
  flex-shrink: 0;
}
.dc-race-preview-col {
  display: flex;
  flex-direction: column;
  align-self: start;
}
.dc-race-preview-list {
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: space-between;
  padding-top: 36px;
}
.dc-race-preview-list .dc-sidebar-item {
  display: flex;
  align-items: flex-start;
  gap: var(--dc-space-3);
  padding: 0;
  border-bottom: 1px solid var(--dc-border-light);
  text-decoration: none;
}
.dc-race-preview-list .dc-sidebar-item:last-child {
  border-bottom: none;
}
.dc-race-preview-list .dc-sidebar-thumb-sm {
  flex-shrink: 0;
  width: 100px;
  height: 64px;
  border-radius: var(--dc-radius-sm);
  overflow: hidden;
}
.dc-race-preview-list .dc-sidebar-thumb-sm img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.dc-race-preview-list .dc-sidebar-item-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 4px;
  padding-top: 2px;
}

/* ---------- 友情链接 ---------- */
.dc-friend-section {
  padding-left: 0;
  padding-right: 0;
}
.dc-friend-fullwidth {
  width: 100%;
  padding: var(--dc-space-4) 0;
  background: var(--dc-surface);
}
.dc-friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--dc-space-4);
  justify-content: flex-start;
  padding-left: var(--dc-space-6);
  padding-right: var(--dc-space-6);
}

.dc-friend-link {
  display: inline-flex;
  align-items: center;
  gap: var(--dc-space-3);
  padding: var(--dc-space-3) var(--dc-space-4);
  background: var(--dc-surface);
  border: 1px solid var(--dc-border);
  border-radius: var(--dc-radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--dc-text-secondary);
  transition: all var(--dc-transition-fast);
  text-decoration: none;
  min-width: 8em;
}

.dc-friend-link:hover {
  border-color: var(--dc-primary);
  color: var(--dc-primary);
  box-shadow: var(--dc-shadow-sm);
}

.dc-friend-link__img {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: var(--dc-radius-sm);
  background: #fff;
}

.dc-friend-link__img img {
  max-width: 36px;
  max-height: 36px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
}

.dc-friend-link__text {
  line-height: 1.4;
}

/* ---------- 分享组件 ---------- */
.dc-share {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
  padding: 20px 24px;
  background: var(--dc-bg);
  border-radius: var(--dc-radius-lg);
}
.dc-share-label {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--dc-text);
}
.dc-share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--dc-radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--dc-transition-fast);
  border: 1px solid var(--dc-border);
  background: var(--dc-surface);
  color: var(--dc-text-secondary);
  text-decoration: none;
}
.dc-share-btn:hover {
  border-color: var(--dc-primary);
  color: var(--dc-primary);
}
.dc-share-wechat:hover { color: #07C160; border-color: #07C160; }
.dc-share-weibo:hover { color: #E6162D; border-color: #E6162D; }
.dc-share-qq:hover { color: #12B7F5; border-color: #12B7F5; }
.dc-share-modal {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
}
.dc-share-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
}
.dc-share-modal-content {
  position: relative;
  background: var(--dc-surface);
  padding: 32px;
  border-radius: var(--dc-radius-lg);
  max-width: 420px;
  width: 90%;
  box-shadow: var(--dc-shadow-lg);
  z-index: 1;
  text-align: center;
}
.dc-share-modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: var(--dc-text-muted);
}
.dc-share-modal-content h4 {
  margin-bottom: 8px;
}
.dc-share-modal-tip {
  font-size: 0.875rem;
  color: var(--dc-text-secondary);
  margin-bottom: 20px;
}
.dc-share-modal-url {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.dc-share-modal-url input {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--dc-border);
  border-radius: var(--dc-radius-md);
  font-size: 0.875rem;
  background: var(--dc-bg);
}
.dc-share-modal-url button {
  padding: 10px 18px;
  background: var(--dc-primary);
  color: #fff;
  border: none;
  border-radius: var(--dc-radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--dc-transition-fast);
}
.dc-share-modal-url button:hover { background: var(--dc-primary-dark); }
.dc-share-modal-imgtip {
  font-size: 0.8125rem;
  color: var(--dc-text-muted);
  margin-bottom: 8px;
}
.dc-share-modal-thumb {
  max-width: 120px;
  border-radius: var(--dc-radius-md);
  margin: 0 auto;
}

/* ============================================================
   首页布局重构 - 按客户架构图
   ============================================================ */

/* 赛事专区左右分栏 */
.dc-race-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--dc-space-6);
  margin-bottom: var(--dc-space-6);
}
.dc-race-row:last-child {
  margin-bottom: 0;
}
.dc-race-col--main .dc-race-grid {
  grid-template-columns: repeat(3, 1fr);
}
.dc-race-col--side .dc-race-grid {
  grid-template-columns: 1fr;
}

/* 视频专区+单车教室并排 */
.dc-video-tutorial-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--dc-space-6);
  align-items: stretch;
}
.dc-video-col .dc-row {
  grid-template-columns: repeat(2, 1fr);
}
.dc-tutorial-col .dc-row {
  grid-template-columns: 1fr;
}
.dc-tutorial-link-item {
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.dc-tutorial-link-thumb {
  flex: 1 1 0;
  min-height: 0;
  position: relative;
}
.dc-tutorial-link-thumb img,
.dc-tutorial-link-placeholder {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* 市场动态+L1-L4并排 */
.dc-market-sidebar-row,
.dc-race-area-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--dc-space-6);
  align-items: start;
}
.dc-l-banners-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-self: start;
}
.dc-l-banner-item {
  border-radius: var(--dc-radius-md);
  overflow: hidden;
  display: flex;
  flex: 1 1 0;
  min-height: 0;
}
.dc-l-banner-item img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

/* 响应式：移动端单栏 */
@media (max-width: 960px) {
  .dc-race-row,
  .dc-video-tutorial-row,
  .dc-market-sidebar-row,
  .dc-race-area-row {
    grid-template-columns: 1fr;
  }
  .dc-race-col--main .dc-race-grid,
  .dc-race-col--side .dc-race-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .dc-video-col .dc-row {
    grid-template-columns: 1fr;
  }
}