/* ========================================
   攀岩 - 攀岩运动综合平台样式
   www.paobulv.cn - 专注于攀岩运动的综合平台
   ======================================== */

/* CSS 变量 */
:root {
  --accent-color: #e85a4f;
  --accent-hover: #d14940;
  --text-primary: #2c3e50;
  --text-secondary: #5d6d7e;
  --text-muted: #95a5a6;
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-dark: #2c3e50;
  --border-color: #e5e8eb;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --max-width: 1200px;
  --sidebar-width: 280px;
  --header-height: 64px;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent-hover);
}

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

ul {
  list-style: none;
}

/* ========================================
   布局组件
   ======================================== */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.two-column {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: 30px;
}

/* ========================================
   页头
   ======================================== */

.header {
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-color);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
}

.nav {
  display: flex;
  gap: 30px;
}

.nav a {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
}

.nav a:hover,
.nav a.active {
  color: var(--accent-color);
}

.search-box {
  position: relative;
}

.search-box input {
  width: 200px;
  padding: 8px 12px 8px 36px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  transition: all 0.2s;
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-color);
  width: 240px;
}

.search-box::before {
  content: "🔍";
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
  opacity: 0.5;
}

/* ========================================
   Hero 区域
   ======================================== */

.hero {
  background: linear-gradient(135deg, var(--bg-dark) 0%, #34495e 100%);
  color: white;
  padding: 80px 0;
  text-align: center;
}

.hero-title {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.hero-desc {
  font-size: 1.2rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 30px;
}

.hero-cta {
  display: inline-flex;
  gap: 15px;
}

.btn {
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s;
  display: inline-block;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: rgba(255,255,255,0.15);
  color: white;
  border: 1px solid rgba(255,255,255,0.3);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.25);
  color: white;
}

/* ========================================
   主内容区
   ======================================== */

.main {
  padding: 40px 0;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent-color);
  display: inline-block;
}

/* ========================================
   文章卡片
   ======================================== */

.article-card {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
  margin-bottom: 20px;
}

.article-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.article-card-image {
  width: 100%;
  height: 200px;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 3rem;
}

.article-card-content {
  padding: 20px;
}

.article-card-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent-color);
  font-weight: 600;
  margin-bottom: 8px;
}

.article-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
  color: var(--text-primary);
}

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

.article-card-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 15px;
}

.article-card-meta {
  display: flex;
  align-items: center;
  gap: 15px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.article-card-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
}

/* 特色卡片 */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.featured-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 280px;
}

.featured-card-image {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.3);
  font-size: 4rem;
}

.featured-card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 25px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
  color: white;
}

.featured-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.featured-card-meta {
  font-size: 0.85rem;
  opacity: 0.8;
}

/* 内容列表 */
.content-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.content-item {
  display: flex;
  gap: 20px;
  background: var(--bg-primary);
  padding: 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all 0.2s;
}

.content-item:hover {
  box-shadow: var(--shadow-md);
}

.content-item-image {
  width: 160px;
  height: 110px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 2rem;
}

.content-item-body {
  flex: 1;
}

.content-item-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.content-item-title:hover {
  color: var(--accent-color);
}

.content-item-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 10px;
}

.content-item-meta {
  display: flex;
  gap: 15px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ========================================
   侧边栏
   ======================================== */

.sidebar {
  padding: 40px 0;
}

.sidebar-widget {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 25px;
  margin-bottom: 25px;
  box-shadow: var(--shadow-sm);
}

.widget-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-color);
}

.widget-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border-color);
}

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

.widget-list a {
  color: var(--text-primary);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.widget-list a::before {
  content: "›";
  color: var(--accent-color);
  font-weight: bold;
}

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

/* ========================================
   面包屑
   ======================================== */

.breadcrumb {
  background: var(--bg-primary);
  padding: 15px 0;
  border-bottom: 1px solid var(--border-color);
}

.breadcrumb-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

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

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

.breadcrumb-separator {
  opacity: 0.5;
}

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

/* ========================================
   分类页
   ======================================== */

.category-header {
  background: var(--bg-primary);
  padding: 40px 0;
  margin-bottom: 30px;
}

.category-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.category-desc {
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ========================================
   分页
   ======================================== */

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-top: 40px;
  padding: 20px 0;
}

.pagination a,
.pagination span {
  min-width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s;
}

.pagination a {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.pagination a:hover {
  background: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
}

.pagination .current {
  background: var(--accent-color);
  color: white;
}

.pagination .prev,
.pagination .next {
  padding: 0 15px;
}

/* ========================================
   文章详情页
   ======================================== */

.article-header {
  background: var(--bg-primary);
  padding: 40px 0;
  margin-bottom: 30px;
}

.article-title {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.article-meta-author {
  display: flex;
  align-items: center;
  gap: 10px;
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
}

.article-featured-image {
  width: 100%;
  height: 400px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 5rem;
}

.article-content {
  background: var(--bg-primary);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  font-size: 1.05rem;
  line-height: 1.8;
}

.article-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 40px 0 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 30px 0 15px;
}

.article-content p {
  margin-bottom: 20px;
  color: var(--text-secondary);
}

.article-content img {
  width: 100%;
  border-radius: var(--radius-md);
  margin: 25px 0;
}

.article-content blockquote {
  border-left: 4px solid var(--accent-color);
  padding: 15px 25px;
  margin: 25px 0;
  background: var(--bg-secondary);
  font-style: italic;
  color: var(--text-secondary);
}

.article-content ul,
.article-content ol {
  margin: 20px 0;
  padding-left: 25px;
}

.article-content li {
  margin-bottom: 10px;
  color: var(--text-secondary);
}

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

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

/* ========================================
   404 页面
   ======================================== */

.error-page {
  min-height: calc(100vh - var(--header-height) - 300px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}

.error-code {
  font-size: 8rem;
  font-weight: 700;
  color: var(--accent-color);
  line-height: 1;
  margin-bottom: 20px;
  opacity: 0.8;
}

.error-title {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 15px;
}

.error-desc {
  color: var(--text-secondary);
  margin-bottom: 30px;
  font-size: 1.1rem;
}

/* ========================================
   页脚
   ======================================== */

.footer {
  background: var(--bg-dark);
  color: white;
  padding: 50px 0 25px;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

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

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-desc {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  line-height: 1.6;
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

/* ========================================
   响应式设计
   ======================================== */

@media (max-width: 1024px) {
  .two-column {
    grid-template-columns: 1fr;
  }

  .sidebar {
    padding-top: 0;
  }

  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 15px 0;
    gap: 15px;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: center;
    gap: 20px;
  }

  .hero {
    padding: 50px 0;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-desc {
    font-size: 1rem;
  }

  .hero-cta {
    flex-direction: column;
    gap: 10px;
  }

  .featured-grid {
    grid-template-columns: 1fr;
  }

  .content-item {
    flex-direction: column;
  }

  .content-item-image {
    width: 100%;
    height: 180px;
  }

  .article-title {
    font-size: 1.6rem;
  }

  .article-featured-image {
    height: 250px;
  }

  .article-content {
    padding: 25px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand {
    max-width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
  }

  .error-code {
    font-size: 5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .search-box input {
    width: 150px;
  }

  .search-box input:focus {
    width: 170px;
  }

  .nav {
    font-size: 0.85rem;
    gap: 15px;
  }

  .pagination a,
  .pagination span {
    min-width: 36px;
    height: 36px;
    font-size: 0.85rem;
  }
}