/* 电脑DIY - 对比评测风格样式 */
:root {
  --accent-color: #00bcd4;
  --accent-dark: #0097a7;
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: #475569;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
  --radius: 8px;
  --radius-lg: 12px;
  --max-width: 1200px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

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

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

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

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

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

.nav {
  display: flex;
  gap: 2rem;
}

.nav a {
  color: var(--text-secondary);
  font-weight: 500;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
}

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

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 0.5rem 1rem;
  min-width: 200px;
}

.search-box input {
  background: transparent;
  border: none;
  color: var(--text-primary);
  outline: none;
  width: 100%;
  font-size: 0.875rem;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

/* Main Container */
.main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-card) 100%);
  border-radius: var(--radius-lg);
  padding: 3rem;
  margin-bottom: 3rem;
  text-align: center;
  border: 1px solid var(--border-color);
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  background: linear-gradient(90deg, var(--accent-color), #80deea);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* Section Title */
.section-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-title::before {
  content: '';
  width: 4px;
  height: 24px;
  background: var(--accent-color);
  border-radius: 2px;
}

/* Category Tags */
.category-tags {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.tag {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-weight: 500;
  transition: all 0.2s;
}

.tag:hover,
.tag.active {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: var(--bg-primary);
}

/* Comparison Cards */
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.comparison-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.comparison-card-header {
  padding: 1.5rem;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-secondary));
  border-bottom: 1px solid var(--border-color);
}

.comparison-card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

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

.comparison-card-body {
  padding: 1.5rem;
}

.vs-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-color);
  color: var(--bg-primary);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.product-pair {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.product-item {
  flex: 1;
  text-align: center;
  padding: 1rem;
  background: var(--bg-card);
  border-radius: var(--radius);
}

.product-item img {
  width: 60px;
  height: 60px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
}

.product-item-name {
  font-weight: 500;
  font-size: 0.875rem;
}

.vs-divider {
  font-weight: 700;
  color: var(--accent-color);
  font-size: 0.875rem;
}

.comparison-summary {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Comparison Table */
.comparison-table-wrapper {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  margin-bottom: 2rem;
}

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

.comparison-table th,
.comparison-table td {
  padding: 1rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
  background: var(--bg-card);
  font-weight: 600;
  color: var(--text-primary);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table tr:hover {
  background: rgba(0, 188, 212, 0.05);
}

.product-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.product-header img {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: var(--radius);
}

.rating {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.rating-star {
  color: var(--warning);
}

.rating-value {
  margin-left: 0.5rem;
  font-weight: 600;
}

.check-mark {
  color: var(--success);
}

.cross-mark {
  color: var(--danger);
}

/* Article Cards */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.article-card {
  display: flex;
  gap: 1.5rem;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  transition: all 0.2s;
}

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

.article-card-image {
  width: 120px;
  height: 90px;
  object-fit: cover;
  border-radius: var(--radius);
  flex-shrink: 0;
}

.article-card-content {
  flex: 1;
}

.article-card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

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

.article-card-meta {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.article-card-summary {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Sidebar */
.sidebar-section {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.sidebar-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

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

.sidebar-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

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

.sidebar-list a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.badge {
  background: var(--bg-card);
  color: var(--text-muted);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

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

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

.breadcrumb-separator {
  color: var(--text-muted);
}

/* Article Page */
.article-header {
  margin-bottom: 2rem;
}

.article-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.article-meta {
  display: flex;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.article-content {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 2rem;
  margin-bottom: 2rem;
}

.article-content h2 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.article-content h3 {
  font-size: 1.25rem;
  margin: 1.5rem 0 0.75rem;
  color: var(--accent-color);
}

.article-content p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.article-content ul,
.article-content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

.article-content li {
  margin-bottom: 0.5rem;
}

/* Quick Summary Box */
.quick-summary {
  background: linear-gradient(135deg, rgba(0, 188, 212, 0.1), rgba(0, 188, 212, 0.05));
  border: 1px solid var(--accent-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.quick-summary-title {
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--accent-color);
}

.quick-summary p {
  color: var(--text-secondary);
  margin: 0;
}

/* Verdict Box */
.verdict-box {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 2rem 0;
}

.verdict-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.verdict-winner {
  background: var(--success);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  font-size: 0.875rem;
}

/* Recommend Badge */
.recommend-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: var(--success);
  color: white;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

/* 404 Page */
.error-page {
  text-align: center;
  padding: 5rem 2rem;
}

.error-code {
  font-size: 8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 1rem;
}

.error-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.error-message {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-color);
  color: var(--bg-primary);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: all 0.2s;
}

.btn:hover {
  background: var(--accent-dark);
  color: var(--bg-primary);
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  margin-top: 4rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Two Column Layout */
.two-column {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2rem;
}

/* Responsive */
@media (max-width: 968px) {
  .two-column {
    grid-template-columns: 1fr;
  }

  .header-inner {
    flex-wrap: wrap;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: center;
    gap: 1rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

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

  .article-card {
    flex-direction: column;
  }

  .article-card-image {
    width: 100%;
    height: 180px;
  }

  .comparison-table-wrapper {
    overflow-x: auto;
  }

  .comparison-table {
    min-width: 600px;
  }
}

@media (max-width: 640px) {
  .main {
    padding: 1rem;
  }

  .hero {
    padding: 2rem 1rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .category-tags {
    justify-content: center;
  }

  .tag {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
  }

  .article-title {
    font-size: 1.5rem;
  }

  .article-content {
    padding: 1.5rem;
  }

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

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