/* ==========================================================================
   飞猫云 (Feimaocloud) 视觉设计系统 (Light & Bright Modern Aesthetic)
   配图标准：配色方案参考图2/图3，卡片排版参考图1/图4，鼠标跟从效果参考图5
   ========================================================================== */

:root {
  /* 品牌核心调色盘 */
  --bg-main: #faf6f0;
  --bg-card: rgba(255, 255, 255, 0.92);
  --bg-card-hover: #ffffff;
  --bg-subtle: #f4ede4;
  
  --primary-teal: #4b9ab0;
  --primary-mint: #a0d7c6;
  --primary-teal-dark: #2c6e80;
  
  --accent-gold: #db9112;
  --accent-coral: #dd907e;
  --accent-red: #d86452;
  
  --text-main: #2c2420;
  --text-sub: #6e645e;
  --text-light: #9e938b;
  
  --border-light: rgba(75, 154, 176, 0.12);
  --border-solid: #e8ded2;
  
  --shadow-sm: 0 4px 15px rgba(60, 40, 20, 0.04);
  --shadow-md: 0 10px 30px rgba(75, 154, 176, 0.08);
  --shadow-lg: 0 20px 40px rgba(44, 36, 32, 0.1);
  --shadow-glow: 0 0 25px rgba(160, 215, 198, 0.4);
  
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text-main);
  background-color: var(--bg-main);
  line-height: 1.6;
  font-size: 16px;
}

body {
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* 自定义 Canvas 动态背景 (图3风格) */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
}

/* 自定义追随光标 (图5风格) */
.custom-cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s ease;
  display: none;
}

@media (pointer: fine) {
  .custom-cursor {
    display: block;
  }
}

.custom-cursor .cursor-icon {
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 14px solid var(--accent-gold);
  transform: rotate(-35deg);
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.15));
}

.custom-cursor .cursor-badge {
  position: absolute;
  top: 10px;
  left: 12px;
  background: var(--accent-gold);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 12px rgba(219, 145, 18, 0.35);
  white-space: nowrap;
}

/* 导航栏 */
.header-navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250, 246, 240, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  padding: 1rem 0;
  transition: var(--transition);
}

.nav-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-main);
  font-size: 1.4rem;
  font-weight: 800;
}

.brand-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-mint), var(--primary-teal));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.3rem;
  box-shadow: 0 6px 15px rgba(75, 154, 176, 0.25);
}

.brand-logo .brand-name {
  background: linear-gradient(135deg, var(--primary-teal-dark), var(--accent-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-main);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
  padding: 0.3rem 0;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-teal);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary-teal);
  transition: var(--transition);
  transform: translateX(-50%);
  border-radius: 2px;
}

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

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent-gold), #e89a1c);
  color: #fff;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  box-shadow: 0 8px 20px rgba(219, 145, 18, 0.3);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 25px rgba(219, 145, 18, 0.45);
  background: linear-gradient(135deg, #e89a1c, var(--accent-red));
}

.btn-cta-lg {
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
}

.btn-secondary {
  background: rgba(75, 154, 176, 0.1);
  color: var(--primary-teal-dark);
  box-shadow: none;
  border: 1px solid var(--border-light);
}

.btn-secondary:hover {
  background: rgba(75, 154, 176, 0.2);
  transform: translateY(-2px);
  color: var(--primary-teal-dark);
}

/* 布局容器 */
.section-container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

.section-header {
  text-align: center;
  max-width: 750px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  display: inline-block;
  background: rgba(160, 215, 198, 0.3);
  color: var(--primary-teal-dark);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.8rem;
  letter-spacing: 0.5px;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 1rem;
}

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

/* HERO 主视觉区 */
.hero-section {
  padding: 4rem 1.5rem 6rem;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #ffffff;
  padding: 0.4rem 1.2rem;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-gold);
  margin-bottom: 1.8rem;
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--text-main);
}

.hero-title span {
  background: linear-gradient(135deg, var(--primary-teal), var(--accent-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-sub);
  max-width: 800px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.hero-trust-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  padding-top: 2rem;
  border-top: 1px dashed var(--border-solid);
  max-width: 900px;
  margin: 0 auto;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-sub);
}

.trust-item i {
  color: var(--primary-teal);
  font-size: 1.1rem;
}

/* 核心优势卡片网格 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 1.8rem;
}

.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 2.2rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-6px);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-mint);
}

.feature-icon {
  width: 54px;
  height: 54px;
  background: linear-gradient(135deg, rgba(160, 215, 198, 0.3), rgba(75, 154, 176, 0.15));
  color: var(--primary-teal-dark);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.4rem;
}

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  color: var(--text-main);
}

.feature-card p {
  font-size: 0.98rem;
  color: var(--text-sub);
  line-height: 1.65;
}

/* 套餐价格表 (完全匹配图1数据与风格) */
.pricing-wrapper {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
  overflow-x: auto;
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 720px;
}

.pricing-table th,
.pricing-table td {
  padding: 1.1rem 1.4rem;
  border-bottom: 1px solid #f0e8df;
  font-size: 0.98rem;
}

.pricing-table th {
  background: #fdfaf6;
  color: var(--text-sub);
  font-weight: 700;
  font-size: 0.9rem;
}

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

.pricing-table td.plan-name {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-main);
}

.pricing-table td.plan-price {
  font-weight: 800;
  color: var(--accent-red);
  font-size: 1.25rem;
}

.pricing-table td.plan-tag {
  color: var(--text-sub);
}

/* 用户评价轮播系统 (Testimonials Carousel) */
.reviews-carousel-wrapper {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  overflow: hidden;
  padding: 1rem 0 3.5rem;
}

.reviews-slider {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}

.review-slide {
  min-width: 100%;
  padding: 0 1rem;
  box-sizing: border-box;
}

.review-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.8rem 2.5rem;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-md);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 280px;
}

.review-quote-icon {
  position: absolute;
  top: 1.8rem;
  right: 2rem;
  font-size: 2.5rem;
  color: rgba(75, 154, 176, 0.15);
}

.review-stars {
  color: var(--accent-gold);
  font-size: 1.1rem;
  margin-bottom: 1.2rem;
  display: flex;
  gap: 4px;
}

.review-text {
  font-size: 1.12rem;
  line-height: 1.8;
  color: var(--text-main);
  margin-bottom: 2rem;
  font-weight: 500;
}

.review-user-info {
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: 1px dashed var(--border-solid);
  padding-top: 1.2rem;
}

.review-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-mint), var(--primary-teal));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  box-shadow: 0 4px 12px rgba(75, 154, 176, 0.25);
}

.review-user-details h4 {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-main);
}

.review-user-details p {
  font-size: 0.88rem;
  color: var(--text-sub);
}

/* 轮播导航控件 */
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1.8rem;
}

.carousel-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #ffffff;
  border: 1px solid var(--border-light);
  color: var(--text-main);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.carousel-btn:hover {
  background: var(--primary-teal);
  color: #ffffff;
  border-color: var(--primary-teal);
  transform: scale(1.08);
}

.carousel-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(75, 154, 176, 0.25);
  cursor: pointer;
  transition: var(--transition);
}

.dot.active {
  width: 28px;
  border-radius: var(--radius-pill);
  background: var(--primary-teal);
}

/* 文章矩阵卡片 */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 2rem;
}

.article-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.article-card-body {
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 0.8rem;
}

.article-category {
  background: rgba(75, 154, 176, 0.1);
  color: var(--primary-teal-dark);
  font-weight: 700;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
}

.article-title {
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1.45;
  margin-bottom: 0.9rem;
}

.article-title a {
  text-decoration: none;
  color: var(--text-main);
  transition: var(--transition);
}

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

.article-excerpt {
  font-size: 0.95rem;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 1.4rem;
  flex-grow: 1;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-light);
  padding-top: 1rem;
  font-size: 0.9rem;
  font-weight: 700;
}

.article-footer a {
  color: var(--primary-teal-dark);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

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

/* 现代化美化：相关技术文章内链卡片组件 (No 5/6 Numbers, Beautiful Glass Cards) */
.related-links-section {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px dashed var(--border-solid);
}

.related-links-section h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  border-bottom: none !important;
  padding-bottom: 0 !important;
  display: flex;
  align-items: center;
  gap: 10px;
}

.related-links-section h2::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 22px;
  background: linear-gradient(135deg, var(--primary-teal), var(--accent-gold));
  border-radius: 4px;
}

.related-links-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.related-link-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fdfbf8;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.6rem;
  text-decoration: none;
  color: var(--text-main);
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.related-link-card:hover {
  background: #ffffff;
  border-color: var(--primary-teal);
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

.related-card-content {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.related-card-badge {
  background: rgba(75, 154, 176, 0.12);
  color: var(--primary-teal-dark);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.8rem;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.related-card-title {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text-main);
  transition: var(--transition);
}

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

.related-arrow {
  color: var(--primary-teal);
  font-size: 1.1rem;
  transition: var(--transition);
}

.related-link-card:hover .related-arrow {
  transform: translateX(4px);
  color: var(--accent-gold);
}

/* FAQ 常见答疑折叠屏 */
.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: #ffffff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  padding: 1.3rem 1.8rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

.faq-question::after {
  content: "+";
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--primary-teal);
  transition: var(--transition);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease;
  padding: 0 1.8rem;
  color: var(--text-sub);
  font-size: 0.98rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.8rem 1.5rem 1.8rem;
}

/* 页脚 Footer */
.footer-site {
  background: #241e1b;
  color: #c4b9b0;
  padding: 4.5rem 1.5rem 2rem;
  margin-top: 5rem;
}

.footer-container {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1.4rem;
  position: relative;
}

.footer-col p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: #a89d95;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.footer-links a {
  color: #a89d95;
  text-decoration: none;
  font-size: 0.92rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary-mint);
  padding-left: 4px;
}

.footer-bottom {
  max-width: 1240px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid #38302b;
  text-align: center;
  font-size: 0.88rem;
  color: #887d75;
}

/* SEO 文章详情页专用排版 */
.article-detail-container {
  max-width: 900px;
  margin: 2rem auto 5rem;
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 3.5rem 3rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-light);
}

.article-header-meta {
  border-bottom: 1px solid var(--border-solid);
  padding-bottom: 2rem;
  margin-bottom: 2.5rem;
}

.article-main-title {
  font-size: 2.4rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 1.2rem;
  color: var(--text-main);
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #38302b;
}

.article-content h2 {
  font-size: 1.7rem;
  font-weight: 800;
  margin: 2.5rem 0 1.2rem;
  color: var(--text-main);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid rgba(75, 154, 176, 0.2);
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 1.8rem 0 1rem;
  color: var(--primary-teal-dark);
}

.article-content p {
  margin-bottom: 1.4rem;
}

.article-content ul, .article-content ol {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
}

.article-content li {
  margin-bottom: 0.6rem;
}

.article-table-wrapper {
  overflow-x: auto;
  margin: 2rem 0;
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

.article-table th, .article-table td {
  border: 1px solid #e5dbcf;
  padding: 0.9rem 1.2rem;
  text-align: left;
  font-size: 0.95rem;
}

.article-table th {
  background: #fcf8f3;
  font-weight: 700;
  color: var(--text-main);
}

.callout-box {
  background: linear-gradient(135deg, rgba(160, 215, 198, 0.15), rgba(75, 154, 176, 0.1));
  border-left: 4px solid var(--primary-teal);
  padding: 1.5rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 2rem 0;
  font-size: 1rem;
}

.callout-box strong {
  color: var(--primary-teal-dark);
}

.article-faq-section {
  margin-top: 3.5rem;
  padding-top: 2.5rem;
  border-top: 1px dashed var(--border-solid);
}

.article-faq-section h2 {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 1.5rem;
  border-bottom: none !important;
  padding-bottom: 0 !important;
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-faq-section h2::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 22px;
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-coral));
  border-radius: 4px;
}

.cta-banner {
  background: linear-gradient(135deg, var(--primary-teal-dark), #1d4d5a);
  color: #ffffff;
  border-radius: var(--radius-md);
  padding: 2.5rem;
  text-align: center;
  margin: 3rem 0;
  box-shadow: var(--shadow-md);
}

.cta-banner h3 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 0.8rem;
  color: #ffffff !important;
  border: none !important;
}

.cta-banner p {
  color: #d2eaf0;
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

/* 法律条款模态弹窗 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 750px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  transform: translateY(20px);
  transition: var(--transition);
}

.modal-overlay.active .modal-box {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(0, 0, 0, 0.05);
  border: none;
  font-size: 1.5rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 响应式适配 */
@media (max-width: 992px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .article-detail-container {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  .hero-title {
    font-size: 2.0rem;
  }
  .section-title {
    font-size: 1.7rem;
  }
  .features-grid, .articles-grid {
    grid-template-columns: 1fr;
  }
  .related-link-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .related-arrow {
    align-self: flex-end;
  }
}

/* ==========================================================================
   GEO (Generative Engine Optimization) AI 核心摘要盒与AI生成引擎优化样式
   ========================================================================== */
.geo-ai-summary-box {
  background: linear-gradient(135deg, rgba(75, 154, 176, 0.08) 0%, rgba(219, 145, 18, 0.08) 100%);
  border: 1px solid rgba(75, 154, 176, 0.25);
  border-left: 5px solid var(--primary-teal-dark);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin: 1.5rem 0 2rem 0;
  box-shadow: var(--shadow-sm);
}

.geo-ai-summary-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 0.75rem;
  font-weight: 700;
  color: var(--primary-teal-dark);
  font-size: 1.05rem;
}

.geo-ai-summary-header i {
  color: var(--accent-gold);
  font-size: 1.2rem;
}

.geo-ai-summary-content {
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--text-main);
}