@charset "utf-8";
/* CSS Document */

/* CSS变量定义 */
:root {
  /* 主色调 - 清新绿色系 */
  --primary: #10b981;
  --primary-dark: #059669;
  --primary-light: #d1fae5;
  --primary-soft: #ecfdf5;
  
  /* 辅助色 */
  --secondary: #0ea5e9;
  --secondary-dark: #0284c7;
  --accent: #f59e0b;
  --accent-light: #fef3c7;
  
  /* 中性色 */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* 文字颜色 */
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --text-white: #ffffff;
  
  /* 背景色 */
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-warm: #fefce8;
  
  /* 边框 */
  --border-light: #e5e7eb;
  --border-medium: #d1d5db;
  
  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* 圆角 */
  --radius-sm: 4px;
  --radius: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* 间距 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  
  /* 字体 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  
  /* 过渡 */
  --transition-fast: 150ms ease;
  --transition: 300ms ease;
  --transition-slow: 500ms ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* 容器 */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--space-6);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-8);
  }
}

/* ========================================
   顶部导航
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition);
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--primary-dark);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
}

.nav-desktop {
  display: none;
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: var(--space-8);
  }
}

.nav-link {
  position: relative;
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--space-2) 0;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.search-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

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

.menu-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  background: var(--gray-100);
}

@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }
}

.menu-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* 移动端菜单 */
.mobile-menu {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-white);
  z-index: 999;
  padding: var(--space-6);
  transform: translateX(100%);
  transition: transform var(--transition);
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-nav-link {
  font-size: 1.125rem;
  font-weight: 500;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
}

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

/* ========================================
   Banner区域
   ======================================== */
.banner {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--primary-soft) 0%, var(--bg-white) 50%, var(--accent-light) 100%);
  padding-top: 72px;
  overflow: hidden;
}

.banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80%;
  height: 150%;
  background: radial-gradient(ellipse, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.banner-content {
  position: relative;
  z-index: 1;
  max-width: 600px;
}

.banner-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-6);
}

.banner-title {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .banner-title {
    font-size: 3.5rem;
  }
}

.banner-title span {
  color: var(--primary);
}

.banner-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

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

/* ========================================
   按钮样式
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
}

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

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

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

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

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

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: 1.125rem;
}

/* ========================================
   分类区域
   ======================================== */
.section {
  padding: var(--space-16) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.5rem;
  }
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.categories {
  background: var(--bg-light);
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .category-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(6, 1fr);
  }
}

.category-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  transition: all var(--transition);
  border: 1px solid var(--border-light);
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.category-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
}

.category-card:nth-child(1) .category-icon { background: #fef3c7; color: #d97706; }
.category-card:nth-child(2) .category-icon { background: #dbeafe; color: #2563eb; }
.category-card:nth-child(3) .category-icon { background: #fce7f3; color: #db2777; }
.category-card:nth-child(4) .category-icon { background: #d1fae5; color: #059669; }
.category-card:nth-child(5) .category-icon { background: #e0e7ff; color: #4f46e5; }
.category-card:nth-child(6) .category-icon { background: #ffedd5; color: #ea580c; }

.category-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.category-count {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ========================================
   文章卡片 - 带缩略图
   ======================================== */
.article-grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .article-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .article-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  transition: all var(--transition);
}

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

.article-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--gray-100);
}

.article-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.article-category-tag {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-1) var(--space-3);
  background: var(--primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.article-content {
  padding: var(--space-5);
}

.article-title {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-primary);
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

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

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.article-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ========================================
   健康贴士
   ======================================== */
.tips-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
}

.tips-grid {
  display: grid;
  gap: var(--space-6);
}

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

@media (min-width: 1024px) {
  .tips-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.tip-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all var(--transition);
}

.tip-card:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-4px);
}

.tip-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-4);
}

.tip-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.tip-desc {
  font-size: 0.875rem;
  opacity: 0.9;
  line-height: 1.6;
}

/* ========================================
   无缩略图文章列表
   ======================================== */
.text-list-section {
  background: var(--bg-white);
}

.text-list-grid {
  display: grid;
  gap: var(--space-8);
}

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

@media (min-width: 1024px) {
  .text-list-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.text-list-column {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.text-list-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--border-light);
}

.text-list-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.text-list-column:nth-child(1) .text-list-icon { background: #fef3c7; color: #d97706; }
.text-list-column:nth-child(2) .text-list-icon { background: #dbeafe; color: #2563eb; }
.text-list-column:nth-child(3) .text-list-icon { background: #fce7f3; color: #db2777; }

.text-list-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.text-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.text-list-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

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

.text-list-item:hover {
  padding-left: var(--space-2);
}

.text-list-number {
  width: 28px;
  height: 28px;
  background: var(--gray-200);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  flex-shrink: 0;
}

.text-list-item:hover .text-list-number {
  background: var(--primary);
  color: white;
}

.text-list-content {
  flex: 1;
}

.text-list-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.text-list-item:hover .text-list-link {
  color: var(--primary);
}

.text-list-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: var(--space-1);
}

/* ========================================
   表单模块
   ======================================== */
.form-section {
  background: var(--bg-light);
}

.form-container {
  max-width: 800px;
  margin: 0 auto;
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
}

@media (min-width: 768px) {
  .form-container {
    padding: var(--space-12);
  }
}

.form-title {
  font-size: 1.75rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-2);
}

.form-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

.form-grid {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .form-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

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

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
}

.form-input,
.form-textarea,
.form-select {
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--border-light);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
  background: var(--bg-white);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary);
}

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

.form-submit {
  width: 100%;
  margin-top: var(--space-4);
}

/* ========================================
   友情链接
   ======================================== */
.links-section {
  background: var(--bg-white);
  padding: var(--space-12) 0;
}

.links-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

.link-item {
  padding: var(--space-3) var(--space-6);
  background: var(--bg-light);
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  border: 1px solid var(--border-light);
}

.link-item:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* ========================================
   底部信息
   ======================================== */
.footer {
  background: var(--gray-900);
  color: var(--gray-300);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

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

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

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 700;
  font-size: 1.5rem;
  color: white;
  margin-bottom: var(--space-4);
}

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

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

.social-link {
  width: 40px;
  height: 40px;
  background: var(--gray-800);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-link:hover {
  background: var(--primary);
  color: white;
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  color: white;
  margin-bottom: var(--space-5);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-link {
  font-size: 0.9375rem;
  color: var(--gray-400);
  transition: color var(--transition-fast);
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: 0.9375rem;
  margin-bottom: var(--space-3);
}

.footer-contact-icon {
  color: var(--primary);
  flex-shrink: 0;
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--gray-800);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    font-size: 0.875rem;
  color: var(--gray-500);
  }
}



.footer-nav {
  display: flex;
  gap: var(--space-6);
}

.footer-nav-link {
  font-size: 0.875rem;
  color: var(--gray-500);
}

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

/* ========================================
   内页Banner
   ======================================== */
.page-banner {
  position: relative;
  padding: 140px 0 60px;
  background: linear-gradient(135deg, var(--primary-soft) 0%, var(--bg-white) 100%);
  border-bottom: 1px solid var(--border-light);
}

.page-banner-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

@media (min-width: 768px) {
  .page-banner-title {
    font-size: 2.5rem;
  }
}

/* ========================================
   面包屑导航
   ======================================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-secondary);
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb-separator {
  color: var(--gray-400);
}

.breadcrumb-current {
  color: var(--text-primary);
  font-weight: 500;
}

/* ========================================
   列表页布局
   ======================================== */
.list-layout {
  display: grid;
  gap: var(--space-8);
  padding: var(--space-8) 0;
}

@media (min-width: 1024px) {
  .list-layout {
    grid-template-columns: 1fr 320px;
  }
}

/* 侧边栏 */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.sidebar-widget {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid var(--border-light);
}

.widget-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--primary-light);
}

.widget-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.widget-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.widget-thumb {
  width: 80px;
  height: 60px;
  border-radius: var(--radius);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--gray-100);
}

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

.widget-content {
  flex: 1;
}

.widget-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.widget-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: var(--space-1);
}

/* 分类筛选 */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  padding: var(--space-4);
  background: var(--bg-white);
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
}

.filter-btn {
  padding: var(--space-2) var(--space-4);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  background: var(--bg-light);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: white;
}

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-10);
}

.page-btn {
  min-width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  font-weight: 500;
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

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

.page-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.page-btn.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ========================================
   文章详情页
   ======================================== */
.article-header {
  max-width: 800px;
  margin: 0 auto var(--space-10);
  text-align: center;
}

.article-category {
  display: inline-block;
  padding: var(--space-1) var(--space-4);
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.article-main-title {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .article-main-title {
    font-size: 2.25rem;
  }
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-6);
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.article-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.article-featured-image {
  max-width: 900px;
  margin: 0 auto var(--space-10);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.article-featured-image img {
  width: 100%;
  height: auto;
}

.article-body {
  max-width: 800px;
  margin: 0 auto;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text-primary);
}

.article-body p {
  margin-bottom: var(--space-6);
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: var(--space-10) 0 var(--space-5);
  color: var(--text-primary);
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: var(--space-8) 0 var(--space-4);
  color: var(--text-primary);
}

.article-body ul,
.article-body ol {
  margin-bottom: var(--space-6);
  padding-left: var(--space-6);
}

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: var(--space-2);
}

.article-body blockquote {
  padding: var(--space-6);
  background: var(--bg-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: var(--space-6) 0;
  font-style: italic;
  color: var(--text-secondary);
}

/* 文章导航 */
.article-nav {
  max-width: 800px;
  margin: var(--space-12) auto 0;
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-light);
}

.article-nav-grid {
  display: grid;
  gap: var(--space-6);
}

@media (min-width: 640px) {
  .article-nav-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.article-nav-item {
  padding: var(--space-5);
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.article-nav-item:hover {
  background: var(--primary-light);
}

.article-nav-item.next {
  text-align: right;
}

.article-nav-label {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}

.article-nav-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-nav-item:hover .article-nav-title {
  color: var(--primary-dark);
}

/* 相关文章 */
.related-section {
  background: var(--bg-light);
  padding: var(--space-12) 0;
}

.related-grid {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 640px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .related-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.related-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: var(--space-5);
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

.related-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.related-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: var(--space-3);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

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

/* 最新文章 - 纯文字 */
.latest-section {
  padding: var(--space-12) 0;
}

.latest-list {
  max-width: 800px;
  margin: 0 auto;
}

.latest-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border-light);
}

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

.latest-dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.latest-title {
  flex: 1;
  font-size: 1rem;
  color: var(--text-primary);
  transition: color var(--transition-fast);
}

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

.latest-date {
  font-size: 0.875rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* ========================================
   图标字体（本地化）
   ======================================== */
.icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  vertical-align: middle;
  fill: currentColor;
}

/* 常用图标 */
.icon-home::before { content: "🏠"; }
.icon-menu::before { content: "☰"; }
.icon-search::before { content: "🔍"; }
.icon-arrow-right::before { content: "→"; }
.icon-arrow-left::before { content: "←"; }
.icon-chevron-right::before { content: "›"; }
.icon-calendar::before { content: "📅"; }
.icon-eye::before { content: "👁"; }
.icon-user::before { content: "👤"; }
.icon-mail::before { content: "✉"; }
.icon-phone::before { content: "📞"; }
.icon-location::before { content: "📍"; }
.icon-heart::before { content: "♥"; }
.icon-star::before { content: "★"; }
.icon-clock::before { content: "🕐"; }
.icon-tag::before { content: "🏷"; }
.icon-folder::before { content: "📁"; }
.icon-share::before { content: "↗"; }
.icon-facebook::before { content: "f"; }
.icon-twitter::before { content: "𝕏"; }
.icon-linkedin::before { content: "in"; }
.icon-instagram::before { content: "📷"; }

/* ========================================
   动画
   ======================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

/* ========================================
   响应式调整
   ======================================== */
@media (max-width: 767px) {
  .section {
    padding: var(--space-12) 0;
  }
  
  .banner {
    min-height: 500px;
    padding: 100px 0 var(--space-10);
  }
  
  .banner-title {
    font-size: 2rem;
  }
  
  .form-container {
    padding: var(--space-6);
  }
}

/* 打印样式 */
@media print {
  .header,
  .footer,
  .banner,
  .form-section,
  .links-section {
    display: none;
  }
  
  .article-body {
    max-width: 100%;
  }
}