/* ==========================================================================
   星链 (Starlink Cloud) - 极简原生高速样式表 (高质感明亮浅色主题)
   零外部依赖 · 原生CSS · 响应式媒体查询 · 秒开级性能 · 浅色设计
   ========================================================================== */

:root {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  --border-color: #e2e8f0;
  --border-highlight: rgba(37, 99, 235, 0.35);
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-gradient: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
  --accent-cyan: #0284c7;
  --accent-purple: #7c3aed;
  --accent-green: #059669;
  --accent-gold: #d97706;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --shadow-card-hover: 0 16px 32px -4px rgba(15, 23, 42, 0.1), 0 4px 12px -2px rgba(15, 23, 42, 0.06);
  --shadow-glow: 0 8px 24px rgba(37, 99, 235, 0.22);
  --transition: all 0.25s ease;
  --container-width: 1180px;
}

/* 基础重置与排版 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

img, svg {
  vertical-align: middle;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 导航栏 (浅色毛玻璃) */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.03);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-main);
}

.logo-badge {
  background: var(--primary-gradient);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
}

.nav-links a: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;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  min-height: 44px;
}

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

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
  filter: brightness(1.05);
}

.btn-secondary {
  background: #ffffff;
  color: var(--text-main);
  border-color: var(--border-color);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
  color: var(--primary);
}

.btn-white {
  background: #ffffff;
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
}

.btn-white:hover {
  background: #f8fafc;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.18);
}

.btn-lg {
  padding: 14px 34px;
  font-size: 1.08rem;
  border-radius: var(--radius-md);
}

.btn-block {
  width: 100%;
}

/* 通用区块排版 */
.section {
  padding: 90px 0;
  position: relative;
}

.section-alt {
  background: #f1f5f9;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 54px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--primary);
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 20px;
  margin-bottom: 14px;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.28;
  margin-bottom: 14px;
  color: var(--text-main);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
}

/* Hero 主视觉区 (浅色明朗大气) */
.hero {
  padding: 100px 0 80px;
  text-align: center;
  position: relative;
  background: radial-gradient(circle at 50% 15%, rgba(37, 99, 235, 0.08) 0%, transparent 65%),
              linear-gradient(180deg, #ffffff 0%, var(--bg-primary) 100%);
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border-radius: 30px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.hero-pill .dot {
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(5, 150, 105, 0.5);
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -1px;
  color: var(--text-main);
  max-width: 920px;
  margin: 0 auto 22px;
}

.text-gradient {
  background: linear-gradient(135deg, #1d4ed8 0%, #6d28d9 60%, #0284c7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 740px;
  margin: 0 auto 36px;
  line-height: 1.68;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 46px;
  flex-wrap: wrap;
}

/* 主视觉 AI 精致科技大图展示区 */
.hero-image-wrapper {
  max-width: 980px;
  margin: 0 auto 52px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 45px -12px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(37, 99, 235, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-image-wrapper:hover {
  transform: translateY(-4px);
  box-shadow: 0 28px 55px -12px rgba(37, 99, 235, 0.18), 0 0 0 1px rgba(37, 99, 235, 0.15);
}

.hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: calc(var(--radius-lg) - 4px);
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.hero-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  max-width: 820px;
  margin: 0 auto;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

.badge-item svg {
  color: var(--primary);
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 34px 28px;
  transition: var(--transition);
  position: relative;
  box-shadow: var(--shadow-card);
}

.feature-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-5px);
  box-shadow: var(--shadow-card-hover);
}

.feature-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eff6ff;
  color: var(--primary);
  margin-bottom: 20px;
  border: 1px solid #dbeafe;
}

.feature-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}

.feature-desc {
  font-size: 0.93rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* 流媒体与AI支持 */
.support-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.support-category {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  box-shadow: var(--shadow-card);
}

.support-category-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}

.support-cat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  background: #f5f3ff;
  border: 1px solid #ddd6fe;
  color: var(--accent-purple);
}

.support-cat-icon.cyan {
  background: #f0f9ff;
  border: 1px solid #bae6fd;
  color: var(--accent-cyan);
}

.support-category-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
}

.support-category-subtitle {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.platform-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.platform-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 0.86rem;
  font-weight: 600;
  color: #334155;
  transition: var(--transition);
}

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

.support-highlight-box {
  background: #f8fafc;
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  border: 1px solid #e2e8f0;
  border-left: 4px solid var(--primary);
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

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

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 38px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.pricing-card:hover {
  border-color: #cbd5e1;
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

.pricing-card.featured {
  border: 2px solid var(--primary);
  background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
  box-shadow: 0 12px 32px -4px rgba(37, 99, 235, 0.16);
  transform: scale(1.03);
}

.pricing-card.featured:hover {
  transform: scale(1.04) translateY(-5px);
  box-shadow: 0 20px 36px -4px rgba(37, 99, 235, 0.22);
}

.pricing-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-gradient);
  color: #fff;
  font-size: 0.76rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

.pricing-plan-name {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.pricing-plan-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  min-height: 42px;
  margin-bottom: 20px;
}

.pricing-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 26px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.price-currency {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
}

.price-number {
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1;
  color: var(--text-main);
}

.price-period {
  font-size: 0.88rem;
  color: var(--text-dim);
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 13px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
}

.pricing-features li strong {
  color: var(--text-main);
}

.pricing-features li svg {
  color: var(--accent-green);
  flex-shrink: 0;
}

.pricing-note {
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 36px;
}

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

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

.review-stars {
  color: var(--accent-gold);
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.review-content {
  font-size: 0.94rem;
  color: var(--text-main);
  line-height: 1.68;
  margin-bottom: 20px;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
}

.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--primary);
  font-size: 0.9rem;
}

.review-user-name {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-main);
}

.review-user-role {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* 常见问题 (原生 CSS details) */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

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

.faq-question {
  padding: 20px 24px;
  font-size: 1.04rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

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

.faq-icon {
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--text-dim);
  transition: transform 0.25s ease;
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  color: var(--primary);
}

.faq-answer {
  padding: 0 24px 22px;
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.68;
  border-top: 1px solid transparent;
}

/* 底部行动召唤条 (Bottom CTA) */
.bottom-cta-box {
  background: linear-gradient(135deg, #1e40af 0%, #2563eb 50%, #4f46e5 100%);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  margin-top: 40px;
  color: #ffffff;
  box-shadow: 0 16px 36px -4px rgba(37, 99, 235, 0.28);
}

.bottom-cta-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 12px;
}

.bottom-cta-desc {
  font-size: 1.05rem;
  color: #e0e7ff;
  max-width: 600px;
  margin: 0 auto 30px;
}

/* 页脚 (只保留4个标题) */
.footer {
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  padding: 48px 0 36px;
  text-align: center;
}

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

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

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

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

/* ==========================================================================
   法律 / 子页面专用轻量排版 (关于我们、服务条款、隐私政策、网站地图)
   ========================================================================== */
.subpage-hero {
  padding: 60px 0 40px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  background: linear-gradient(180deg, #f1f5f9 0%, #f8fafc 100%);
}

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

.subpage-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.legal-content {
  max-width: 860px;
  margin: 0 auto;
  padding: 50px 24px 80px;
}

.legal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-card);
}

.legal-card h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.legal-card p {
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 14px;
}

.legal-card p:last-child {
  margin-bottom: 0;
}

.legal-card ul {
  padding-left: 20px;
  margin-bottom: 14px;
}

.legal-card li {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 8px;
}

.legal-badge-alert {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius-sm);
  color: #dc2626;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.legal-badge-success {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  border-radius: var(--radius-sm);
  color: #059669;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

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

.sitemap-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.sitemap-box h3 {
  font-size: 1.15rem;
  color: var(--text-main);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.sitemap-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sitemap-links a {
  color: var(--text-muted);
  font-size: 0.94rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

/* ==========================================================================
   移动端与响应式媒体查询 (@media)
   ========================================================================== */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
}

@media (max-width: 860px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-4px);
  }
  .support-wrapper {
    grid-template-columns: 1fr;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin: 0 auto;
  }
  .sitemap-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2.3rem;
  }
  .hero-subtitle {
    font-size: 1.02rem;
  }
  .section {
    padding: 60px 0;
  }
  .section-title {
    font-size: 1.75rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .hero-cta {
    flex-direction: column;
    width: 100%;
  }
  .hero-cta .btn {
    width: 100%;
    min-height: 50px;
    font-size: 1.05rem;
  }
  .footer-nav {
    flex-direction: column;
    gap: 16px;
  }
  .bottom-cta-box {
    padding: 40px 20px;
  }
  .bottom-cta-title {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.95rem;
  }
  .price-number {
    font-size: 2.4rem;
  }
  .support-category {
    padding: 24px 18px;
  }
}

/* ==========================================================================
   高科技网格卡片 (High-Tech Grid Cards) & 文章排版样式
   ========================================================================== */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  margin-top: 36px;
}

.tech-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.tech-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-gradient);
  opacity: 0;
  transition: var(--transition);
}

.tech-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-card-hover);
}

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

.tech-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.tech-tag {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  background: #eff6ff;
  color: var(--primary);
  border: 1px solid #bfdbfe;
}

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

.tech-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text-main);
  margin-bottom: 12px;
}

.tech-card-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.tech-card-link {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tech-card-link:hover {
  color: var(--primary-hover);
  transform: translateX(3px);
}

/* 文章正文页面样式 */
.article-header {
  padding: 40px 0 20px;
  text-align: left;
}

.article-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.35;
  color: var(--text-main);
  margin-bottom: 16px;
}

.article-meta-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.88rem;
  color: var(--text-dim);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #334155;
}

.article-content h2 {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 24px 0 12px;
}

.article-content p {
  margin-bottom: 18px;
  text-align: justify;
}

.article-content ul, .article-content ol {
  margin: 0 0 20px 24px;
}

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

.article-content a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.article-highlight-box {
  background: #f1f5f9;
  border-left: 4px solid var(--primary);
  padding: 18px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  font-size: 0.96rem;
}

.article-return-bar {
  margin-bottom: 24px;
}

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

@media (max-width: 768px) {
  .tech-grid {
    grid-template-columns: 1fr;
  }
  .article-title {
    font-size: 1.75rem;
  }
}