/* 贝贝云 - 赛博朋克极简原生样式表 */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

:root {
  --bg-primary: #0A0A0F;
  --bg-secondary: #12121A;
  --bg-card: rgba(18, 18, 26, 0.82);
  --bg-card-hover: rgba(24, 24, 36, 0.95);
  --cyan-primary: #00FFE0;
  --cyan-glow: 0 0 20px rgba(0, 255, 224, 0.45);
  --cyan-subtle: rgba(0, 255, 224, 0.15);
  --purple-accent: #9D4EDD;
  --purple-glow: 0 0 25px rgba(157, 78, 221, 0.45);
  --text-main: #F4F6FB;
  --text-muted: #9BA3B8;
  --text-dark: #64748B;
  --border-light: rgba(255, 255, 255, 0.08);
  --border-cyan: rgba(0, 255, 224, 0.28);
  --font-main: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --container-max: 1200px;
  --transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-primary);
  color: var(--text-main);
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* 交互粒子画布 (固定底层) */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* 鼠标聚光灯高亮层 */
.spotlight-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(650px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(0, 255, 224, 0.06), transparent 80%);
  transition: opacity 0.4s ease;
}

/* 容器与布局 */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

/* 顶部导航栏 */
.navbar {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  z-index: 100;
  transition: var(--transition);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-main);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.brand-logo .logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--cyan-primary), var(--purple-accent));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--cyan-glow);
}

.brand-logo .logo-icon svg {
  width: 18px;
  height: 18px;
  fill: #0A0A0F;
}

.brand-name-highlight {
  color: var(--cyan-primary);
  text-shadow: 0 0 12px rgba(0, 255, 224, 0.5);
}

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

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  padding: 6px 2px;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--cyan-primary);
  box-shadow: var(--cyan-glow);
  transition: var(--transition);
}

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

.nav-badge-news {
  background: linear-gradient(90deg, #FF0055, #FF5500);
  color: #fff;
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 999px;
  margin-left: 4px;
  font-weight: 700;
  text-transform: uppercase;
}

.nav-cta-btn {
  background: transparent;
  border: 1px solid var(--cyan-primary);
  color: var(--cyan-primary);
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 0 10px rgba(0, 255, 224, 0.15);
}

.nav-cta-btn:hover {
  background: var(--cyan-primary);
  color: #0A0A0F;
  box-shadow: var(--cyan-glow);
  transform: translateY(-1px);
}

/* 移动端菜单开关 */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* 主视觉区 (Hero) */
.hero-section {
  position: relative;
  padding: 90px 0 80px;
  text-align: center;
  overflow: hidden;
  z-index: 2;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 255, 224, 0.08);
  border: 1px solid var(--border-cyan);
  border-radius: 999px;
  padding: 6px 18px;
  font-size: 0.85rem;
  color: var(--cyan-primary);
  margin-bottom: 24px;
  box-shadow: 0 0 15px rgba(0, 255, 224, 0.1);
}

.hero-pill-dot {
  width: 8px;
  height: 8px;
  background: var(--cyan-primary);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--cyan-primary);
  animation: pulse-dot 1.8s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.3rem, 5.2vw, 4.2rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -1px;
  margin-bottom: 24px;
  min-height: 1.25em;
}

.hero-title .brand-gradient {
  background: linear-gradient(135deg, #00FFE0 0%, #FFFFFF 50%, #9D4EDD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.typewriter-cursor {
  display: inline-block;
  width: 3px;
  height: 1em;
  background-color: var(--cyan-primary);
  margin-left: 6px;
  vertical-align: text-bottom;
  animation: blink 0.9s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 760px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

/* 按钮通用 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, #00FFE0 0%, #00C4AA 100%);
  color: #0A0A0F;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 14px 34px;
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: 0 0 25px rgba(0, 255, 224, 0.45);
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(0, 255, 224, 0.7);
  background: linear-gradient(135deg, #33FFEE 0%, #00FFE0 100%);
}

.btn-blog-dofollow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(157, 78, 221, 0.12);
  border: 1px solid rgba(157, 78, 221, 0.45);
  color: #D8B4FE;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  text-decoration: none;
  box-shadow: 0 0 20px rgba(157, 78, 221, 0.2);
  transition: var(--transition);
}

.btn-blog-dofollow:hover {
  background: rgba(157, 78, 221, 0.25);
  border-color: #9D4EDD;
  color: #FFFFFF;
  box-shadow: var(--purple-glow);
  transform: translateY(-2px);
}

/* 英雄区状态徽标 */
.hero-badges {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
  max-width: 880px;
  margin: 0 auto;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.badge-item svg {
  width: 18px;
  height: 18px;
  color: var(--cyan-primary);
}

/* 通用Section */
.section {
  padding: 85px 0;
  position: relative;
  z-index: 2;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--cyan-primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

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

/* 核心优势网格 (3图文卡片) */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.cyber-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.cyber-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  border: 1px solid transparent;
  transition: var(--transition);
  pointer-events: none;
}

.cyber-card:hover {
  transform: translateY(-6px);
  background: var(--bg-card-hover);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.45), 0 0 25px rgba(0, 255, 224, 0.25);
  border-color: var(--cyan-primary);
}

.cyber-card:hover::before {
  border-color: rgba(0, 255, 224, 0.4);
}

.card-icon-box {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: rgba(0, 255, 224, 0.08);
  border: 1px solid var(--border-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--cyan-primary);
  box-shadow: 0 0 15px rgba(0, 255, 224, 0.15);
  transition: var(--transition);
}

.cyber-card:hover .card-icon-box {
  background: var(--cyan-primary);
  color: #0A0A0F;
  box-shadow: var(--cyan-glow);
  transform: scale(1.05);
}

.card-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: #FFFFFF;
}

.card-text {
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.card-feature-list {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  list-style: none;
}

.card-feature-list li {
  font-size: 0.88rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.card-feature-list li svg {
  color: var(--cyan-primary);
  flex-shrink: 0;
}

/* 流媒体与 AI 支持网格 */
.unlock-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.unlock-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.unlock-card:hover {
  transform: translateY(-4px);
  border-color: var(--purple-accent);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4), var(--purple-glow);
}

.unlock-logo-wrapper {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.unlock-name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: #FFFFFF;
}

.unlock-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: #10B981;
  background: rgba(16, 185, 129, 0.1);
  padding: 3px 10px;
  border-radius: 999px;
  font-weight: 600;
}

.unlock-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 6px #10B981;
}

/* 价格对比表 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
  backdrop-filter: blur(12px);
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: var(--cyan-primary);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.5), 0 0 25px rgba(0, 255, 224, 0.25);
}

.pricing-card.featured {
  border-color: var(--cyan-primary);
  background: linear-gradient(180deg, rgba(0, 255, 224, 0.08) 0%, rgba(18, 18, 26, 0.95) 100%);
  box-shadow: 0 0 35px rgba(0, 255, 224, 0.2);
  transform: scale(1.03);
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-8px);
  box-shadow: 0 0 45px rgba(0, 255, 224, 0.35);
}

.pricing-popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #00FFE0, #9D4EDD);
  color: #0A0A0F;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: 999px;
  letter-spacing: 1px;
  text-transform: uppercase;
  box-shadow: 0 0 15px rgba(0, 255, 224, 0.5);
}

.pricing-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #FFFFFF;
}

.pricing-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
}

.price-currency {
  font-size: 1.3rem;
  color: var(--cyan-primary);
  font-weight: 700;
}

.price-amount {
  font-size: 2.8rem;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1;
}

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

.price-sub-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  min-height: 1.4em;
}

.pricing-features {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
}

.pricing-features li {
  font-size: 0.92rem;
  color: var(--text-muted);
  padding: 9px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-features li:last-child {
  border-bottom: none;
}

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

.pricing-btn {
  display: block;
  text-align: center;
  padding: 13px 20px;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #FFFFFF;
}

.pricing-btn:hover {
  background: var(--cyan-primary);
  color: #0A0A0F;
  border-color: var(--cyan-primary);
  box-shadow: var(--cyan-glow);
}

.pricing-card.featured .pricing-btn {
  background: var(--cyan-primary);
  color: #0A0A0F;
  border: none;
  box-shadow: var(--cyan-glow);
}

.pricing-card.featured .pricing-btn:hover {
  background: #33FFEE;
  box-shadow: 0 0 30px rgba(0, 255, 224, 0.7);
  transform: translateY(-2px);
}

/* 用户评价 (Testimonials) */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  transition: var(--transition);
}

.review-card:hover {
  border-color: rgba(0, 255, 224, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.review-stars {
  color: #FBBF24;
  margin-bottom: 16px;
  display: flex;
  gap: 4px;
}

.review-content {
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00FFE0, #9D4EDD);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #0A0A0F;
  font-size: 1rem;
}

.author-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: #FFFFFF;
}

.author-role {
  font-size: 0.82rem;
  color: var(--text-dark);
}

/* 常见问题 (FAQ) */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active,
.faq-item:hover {
  border-color: rgba(0, 255, 224, 0.3);
}

.faq-question {
  width: 100%;
  padding: 22px 26px;
  background: none;
  border: none;
  color: #FFFFFF;
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: inherit;
}

.faq-icon {
  font-size: 1.25rem;
  color: var(--cyan-primary);
  transition: transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0, 1, 0, 1);
  padding: 0 26px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding-bottom: 22px;
  transition: max-height 0.35s ease-in-out;
}

/* 底部 CTA 区域 */
.cta-banner-section {
  padding: 80px 0;
  position: relative;
  z-index: 2;
}

.cta-banner {
  background: linear-gradient(135deg, rgba(0, 255, 224, 0.12) 0%, rgba(157, 78, 221, 0.15) 100%);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  box-shadow: 0 0 50px rgba(0, 255, 224, 0.15);
  backdrop-filter: blur(16px);
}

.cta-title {
  font-size: clamp(2rem, 3.6vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 36px;
}

/* 页脚 (规范：严格仅保留4个标题，打开新页面) */
.footer-clean {
  background: #06060A;
  border-top: 1px solid var(--border-light);
  padding: 50px 0 35px;
  position: relative;
  z-index: 2;
}

.footer-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 36px;
  list-style: none;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.footer-nav a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 1rem;
  font-weight: 500;
  transition: var(--transition);
  padding: 6px 12px;
}

.footer-nav a:hover {
  color: var(--cyan-primary);
  text-shadow: 0 0 8px rgba(0, 255, 224, 0.5);
}

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

/* 资讯及文章通用页面样式 */
.article-header {
  padding: 70px 0 35px;
  text-align: center;
}

.article-breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-dark);
  margin-bottom: 18px;
}

.article-breadcrumb a {
  color: var(--cyan-primary);
  text-decoration: none;
}

.article-breadcrumb a:hover {
  text-decoration: underline;
}

.article-body {
  max-width: 860px;
  margin: 0 auto 70px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 48px 42px;
  backdrop-filter: blur(14px);
}

.article-body h1 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
  color: #FFFFFF;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--text-dark);
  font-size: 0.88rem;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
  flex-wrap: wrap;
}

.article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 36px 0 16px;
  color: var(--cyan-primary);
  border-left: 4px solid var(--cyan-primary);
  padding-left: 12px;
}

.article-body h3 {
  font-size: 1.22rem;
  font-weight: 600;
  margin: 26px 0 12px;
  color: #FFFFFF;
}

.article-body p {
  color: #C0C8DA;
  font-size: 1.02rem;
  line-height: 1.85;
  margin-bottom: 20px;
}

.article-body ul, .article-body ol {
  color: #C0C8DA;
  margin-left: 24px;
  margin-bottom: 24px;
  line-height: 1.8;
}

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

.article-body blockquote {
  border-left: 4px solid var(--purple-accent);
  background: rgba(157, 78, 221, 0.08);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: #E2E8F0;
  font-size: 0.96rem;
}

.article-body a.dofollow-link {
  color: #38BDF8;
  text-decoration: underline;
  text-underline-offset: 4px;
  font-weight: 600;
  transition: var(--transition);
}

.article-body a.dofollow-link:hover {
  color: var(--cyan-primary);
  text-shadow: 0 0 8px rgba(0, 255, 224, 0.6);
}

.article-body a.internal-link {
  color: var(--cyan-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-weight: 600;
  transition: var(--transition);
}

.article-body a.internal-link:hover {
  color: #FFFFFF;
  text-shadow: 0 0 8px rgba(0, 255, 224, 0.8);
}

/* 资讯列表网格 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  margin-bottom: 60px;
}

.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  text-decoration: none;
}

.news-card:hover {
  transform: translateY(-5px);
  border-color: var(--cyan-primary);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45), 0 0 20px rgba(0, 255, 224, 0.2);
}

.news-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--cyan-primary);
  background: rgba(0, 255, 224, 0.1);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.news-card-title {
  font-size: 1.18rem;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.4;
  margin-bottom: 12px;
}

.news-card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.news-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 14px;
}

/* 滚动动画类 */
.fade-in-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* 响应式媒体查询 @media */
@media (max-width: 1024px) {
  .features-grid,
  .reviews-grid,
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .unlock-grid,
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-8px);
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 15, 0.98);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.8);
  }

  .nav-links.show {
    display: flex;
  }

  .nav-cta-btn {
    display: none;
  }

  .hero-section {
    padding: 55px 0 50px;
  }

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

  .btn-primary,
  .btn-blog-dofollow {
    width: 100%;
    min-height: 52px;
    padding: 14px 20px;
    font-size: 1rem;
  }

  .features-grid,
  .unlock-grid,
  .pricing-grid,
  .reviews-grid,
  .news-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .pricing-card.featured {
    transform: none;
  }

  .article-body {
    padding: 30px 20px;
  }

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