/* ==========================================================================
   极速云 (Jisuyun) - 浅色极简高转化样式表 (Light Theme)
   零外部依赖 | 纯原生 CSS | 秒开响应式 | 现代 SaaS 质感
   ========================================================================== */

:root {
  --bg-main: #f8fafc;
  --bg-subtle: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  --bg-card-border: #e2e8f0;
  --bg-card-border-hover: #3b82f6;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --accent-cyan: #0284c7;
  --accent-purple: #7c3aed;
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;
  --success: #16a34a;
  --gold: #d97706;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --shadow-glow: 0 8px 25px rgba(37, 99, 235, 0.2);
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.03);
  --shadow-hover: 0 14px 30px rgba(37, 99, 235, 0.12);
  --transition: all 0.25s ease;
  --container-width: 1200px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.07) 0%, transparent 55%),
    radial-gradient(circle at 100% 30%, rgba(2, 132, 199, 0.05) 0%, transparent 40%);
  background-repeat: no-repeat;
}

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

ul {
  list-style: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* 顶部导航栏 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--bg-card-border);
  height: 72px;
  display: flex;
  align-items: center;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-main);
}

.nav-brand-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--accent-cyan));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.35);
}

.nav-brand-img {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  display: block;
  object-fit: cover;
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.25);
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* 按钮规范 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
  border: 1px solid transparent;
  min-height: 44px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, #1d4ed8 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
  transform: translateY(-2px);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-main);
  border: 1px solid #cbd5e1;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: #94a3b8;
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--primary) 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
}

.btn-accent:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.45);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
  min-height: 38px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
  min-height: 52px;
}

/* 主视觉区 Hero */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  color: #1d4ed8;
  margin-bottom: 24px;
}

.hero-pill-badge {
  background: var(--primary);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.22;
  margin-bottom: 20px;
  letter-spacing: -1px;
  color: var(--text-main);
}

.hero-title-highlight {
  background: linear-gradient(135deg, #1d4ed8 0%, #0284c7 50%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

/* 主视觉区竞速展示图 */
.hero-image-wrapper {
  max-width: 960px;
  margin: 0 auto 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--bg-card-border);
  box-shadow: 0 16px 45px rgba(37, 99, 235, 0.12), 0 4px 14px rgba(0, 0, 0, 0.04);
  transition: var(--transition);
  background: #ffffff;
}

.hero-image-wrapper:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 60px rgba(37, 99, 235, 0.18);
  border-color: #93c5fd;
}

.hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
}

/* 数据徽章 */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
  padding: 24px;
  background: #ffffff;
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-value {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-top: 4px;
}

/* 通用板块样式 */
.section {
  padding: 80px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 10px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
  color: var(--text-main);
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 核心优势网格 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: #ffffff;
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.feature-card:hover {
  border-color: #bfdbfe;
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.feature-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: #eff6ff;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  border: 1px solid #dbeafe;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}

.feature-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* 流媒体与 AI 支持专区 (淡雅区分底色) */
.media-ai-section {
  background: var(--bg-subtle);
  border-top: 1px solid var(--bg-card-border);
  border-bottom: 1px solid var(--bg-card-border);
}

.media-ai-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.media-box {
  background: #ffffff;
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-card);
}

.media-box-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.media-box-icon {
  font-size: 2rem;
}

.media-box-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
}

.media-box-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

.badges-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.service-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: #334155;
  transition: var(--transition);
}

.service-badge:hover {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: var(--primary);
  transform: translateY(-1px);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--success);
  box-shadow: 0 0 6px rgba(22, 163, 74, 0.4);
}

/* 套餐对比表 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: #ffffff;
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
  box-shadow: var(--shadow-card);
}

.pricing-card:hover {
  border-color: #93c5fd;
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.pricing-card.featured {
  background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
  border: 2px solid var(--primary);
  box-shadow: 0 10px 35px rgba(37, 99, 235, 0.15);
  transform: scale(1.03);
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-6px);
  box-shadow: 0 16px 45px rgba(37, 99, 235, 0.25);
}

.featured-tag {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #2563eb, #0284c7);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  letter-spacing: 1px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.plan-name {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-main);
}

.plan-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  min-height: 40px;
}

.plan-price-box {
  margin-bottom: 28px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.currency {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-main);
}

.price {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1;
}

.period {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.plan-features {
  margin-bottom: 32px;
  flex-grow: 1;
}

.plan-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: #334155;
  margin-bottom: 14px;
}

.feature-check {
  color: var(--success);
  font-weight: 800;
  font-size: 1.1rem;
}

/* 用户评价 */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: #ffffff;
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.review-card:hover {
  border-color: #bfdbfe;
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.review-stars {
  color: #f59e0b;
  margin-bottom: 14px;
  font-size: 1.1rem;
}

.review-text {
  font-size: 0.95rem;
  color: #334155;
  line-height: 1.65;
  margin-bottom: 20px;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #eff6ff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary);
  border: 1px solid #dbeafe;
}

.author-info h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

.author-info p {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* FAQ 常见问题 (原生纯 HTML/CSS 手风琴) */
.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #ffffff;
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.faq-item:hover {
  border-color: #cbd5e1;
}

.faq-item[open] {
  border-color: #93c5fd;
  background: #f8faff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.06);
}

.faq-summary {
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--text-muted);
  font-weight: 400;
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-summary::after {
  content: "−";
  color: var(--primary);
}

.faq-content {
  padding: 0 24px 22px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* 底部行动号召 (CTA Banner) */
.cta-banner {
  background: linear-gradient(135deg, #eff6ff 0%, #e0f2fe 100%);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.08);
}

.cta-banner-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text-main);
}

.cta-banner-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 32px;
}

/* 页脚 Footer - 严格按照要求只展示4个标题 */
.footer {
  margin-top: auto;
  background: #ffffff;
  border-top: 1px solid var(--bg-card-border);
  padding: 40px 0;
  text-align: center;
}

.footer-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 36px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.footer-link {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--primary);
  background: #eff6ff;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* 独立内容页专用通用样式 (关于我们, 服务条款, 隐私政策, 网站地图) */
.page-container {
  max-width: 860px;
  margin: 40px auto 80px;
  padding: 0 20px;
}

.page-header {
  margin-bottom: 40px;
  text-align: center;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--bg-card-border);
}

.page-title {
  font-size: 2.4rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-main);
}

.page-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
}

.article-body {
  background: #ffffff;
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  line-height: 1.8;
  color: #334155;
  box-shadow: var(--shadow-card);
}

.article-section {
  margin-bottom: 36px;
}

.article-section:last-child {
  margin-bottom: 0;
}

.article-heading {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-left: 4px solid var(--primary);
  padding-left: 12px;
}

.article-text {
  font-size: 1rem;
  margin-bottom: 14px;
  color: #334155;
}

.article-list {
  list-style: disc;
  padding-left: 24px;
  margin-bottom: 16px;
}

.article-list li {
  margin-bottom: 8px;
}

.highlight-box {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: var(--radius-md);
  padding: 20px;
  margin: 20px 0;
  color: #1e40af;
  font-size: 0.95rem;
}

.warning-box {
  background: #fef2f2 !important;
  border-color: #fecaca !important;
  color: #991b1b !important;
}

/* 网站地图样式 */
.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.sitemap-card {
  background: #f8fafc;
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.sitemap-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--primary);
  border-bottom: 1px solid var(--bg-card-border);
  padding-bottom: 8px;
}

.sitemap-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sitemap-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.sitemap-links a:hover {
  color: var(--primary);
  transform: translateX(4px);
}

/* ==========================================================================
   响应式媒体查询 (@media) - 确保手机端单栏完美适配，手指点击无障碍
   ========================================================================== */

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: repeat(1, 1fr);
    max-width: 500px;
    margin: 0 auto;
  }
  
  .pricing-card.featured {
    transform: none;
  }
  
  .pricing-card.featured:hover {
    transform: translateY(-6px);
  }

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

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .navbar {
    height: auto;
    padding: 14px 0;
  }

  .nav-links {
    display: none; /* 移动端精简，突出行动按钮 */
  }

  .hero {
    padding: 50px 0 40px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .hero-cta {
    flex-direction: column;
    width: 100%;
  }

  .hero-cta .btn {
    width: 100%;
    min-height: 50px;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    padding: 20px 16px;
  }

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

  .media-ai-grid {
    grid-template-columns: 1fr;
  }

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

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

  .section {
    padding: 50px 0;
  }

  .section-title {
    font-size: 1.8rem;
  }

  .article-body {
    padding: 28px 20px;
  }

  .cta-banner {
    padding: 40px 20px;
  }

  .cta-banner-title {
    font-size: 1.8rem;
  }

  .footer-nav {
    flex-direction: column;
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.85rem;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .btn {
    width: 100%;
    padding: 14px 20px;
    font-size: 1rem;
  }
}

/* 高科技网格卡片 (High-Tech Grid Cards) */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.tech-card {
  background: #ffffff;
  border: 1px solid var(--bg-card-border);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.tech-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.tech-card:hover {
  border-color: #93c5fd;
  transform: translateY(-5px);
  box-shadow: 0 16px 36px rgba(37, 99, 235, 0.12);
}

.tech-card:hover::before {
  opacity: 1;
}

.tech-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.tech-card-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  background: #eff6ff;
  color: var(--primary);
  border: 1px solid #dbeafe;
}

.tech-card-date {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.tech-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-main);
  margin-bottom: 10px;
}

.tech-card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.tech-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--bg-card-border);
  padding-top: 14px;
}

.tech-card-readtime {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.tech-card-link {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.tech-card-link:hover {
  color: #1d4ed8;
  transform: translateX(4px);
}

@media (max-width: 1024px) {
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .tech-grid {
    grid-template-columns: 1fr;
  }
}