/* ==========================================================================
   魔界 (Mojie Cloud) - 现代极简高效落地页样式表
   纯原生 CSS，移动端优先，零外部依赖，极速秒开
   ========================================================================== */

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #3b82f6;
  --accent: #06b6d4;
  --accent-glow: rgba(6, 182, 212, 0.25);
  --success: #10b981;
  --warning: #f59e0b;
  --dark-bg: #0b0f19;
  --card-bg: #111827;
  --card-border: #1f2937;
  --card-hover-border: #374151;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  --pbn-color: #38bdf8;
  --pbn-hover: #7dd3fc;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --glow-shadow: 0 0 25px rgba(37, 99, 235, 0.35);
  --container-max: 1200px;
}

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

html {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--dark-bg);
  color: var(--text-main);
  scroll-behavior: smooth;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  background: radial-gradient(circle at 50% 0%, #172554 0%, #0b0f19 55%, #050811 100%);
  min-height: 100vh;
}

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

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* 按钮通用规范 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  text-align: center;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #0284c7);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8, #0369a1);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.55);
}

.btn-secondary {
  background: rgba(31, 41, 55, 0.7);
  color: var(--text-main);
  border-color: var(--card-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(55, 65, 81, 0.8);
  border-color: var(--card-hover-border);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 15px 32px;
  font-size: 1.05rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(37, 99, 235, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-success {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.3);
}

/* 导航栏 */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav-wrap {
  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: -0.02em;
  color: #ffffff;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.4);
}

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

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

.nav-links a:hover {
  color: #ffffff;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

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

/* 主视觉区 (Hero) */
.hero {
  padding: 80px 0 60px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero-title {
  font-size: 2.85rem;
  font-weight: 850;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: #ffffff;
}

.hero-title .gradient-text {
  background: linear-gradient(120deg, #60a5fa, #22d3ee 50%, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 8px;
}

.hero-features-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.feature-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: #d1d5db;
}

.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

/* 动态元素卡片 (Hero Graphic) */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.speed-card-box {
  width: 100%;
  max-width: 480px;
  background: rgba(17, 24, 39, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(37, 99, 235, 0.2);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.speed-card-box::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 65%);
  pointer-events: none;
  animation: radar-pulse 6s infinite linear;
}

@keyframes radar-pulse {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.speed-meter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.meter-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: #34d399;
  font-weight: 600;
}

.pulse-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.speed-display {
  text-align: center;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.speed-num {
  font-size: 3.8rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  background: linear-gradient(180deg, #ffffff 40%, #93c5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}

.speed-unit {
  font-size: 0.95rem;
  color: var(--accent);
  font-weight: 600;
  margin-top: 6px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nodes-dynamic-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 20px;
}

.node-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(31, 41, 55, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  transition: var(--transition);
}

.node-item:hover {
  border-color: rgba(6, 182, 212, 0.4);
  background: rgba(31, 41, 55, 0.8);
}

.node-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.node-flag {
  font-size: 1.1rem;
}

.node-name {
  font-weight: 600;
  color: #f3f4f6;
}

.node-ping {
  color: #34d399;
  font-family: monospace;
  font-weight: 700;
  font-size: 0.85rem;
}

/* 区块通用结构 */
.section {
  padding: 80px 0;
  position: relative;
}

.section-alt {
  background: rgba(17, 24, 39, 0.4);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}

.section-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: #ffffff;
  margin-top: 12px;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-top: 12px;
}

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

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4), 0 0 20px var(--accent-glow);
}

.feature-icon-wrap {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-sm);
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(37, 99, 235, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: #60a5fa;
}

.feature-card-title {
  font-size: 1.28rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

.feature-card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* 流媒体与 AI 支持图卡 */
.support-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.support-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.support-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-4px);
}

.support-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.support-header-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(6, 182, 212, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.support-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #ffffff;
}

.support-card p {
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.65;
  margin-bottom: 24px;
}

.tags-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(31, 41, 55, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.86rem;
  color: #e5e7eb;
  font-weight: 500;
}

/* 套餐价格对比表 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  align-items: stretch;
}

.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 32px 22px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-light);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
}

.pricing-card.featured {
  border-color: #2563eb;
  background: linear-gradient(180deg, #172554 0%, #111827 40%);
  box-shadow: 0 0 30px rgba(37, 99, 235, 0.35);
  transform: scale(1.03);
  z-index: 2;
}

.pricing-card.featured:hover {
  transform: scale(1.04) translateY(-4px);
}

.ribbon {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 9999px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.5);
}

.pricing-plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.pricing-plan-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  min-height: 40px;
}

.pricing-price-wrap {
  margin: 20px 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.currency {
  font-size: 1.4rem;
  font-weight: 700;
  color: #60a5fa;
}

.price-amount {
  font-size: 2.8rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: #ffffff;
  line-height: 1;
}

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

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
  flex-grow: 1;
}

.pricing-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: #d1d5db;
}

.pricing-feature-item svg {
  flex-shrink: 0;
  color: #10b981;
}

.pricing-cta {
  width: 100%;
}

/* 9篇 SEO 文章专区图卡 (放在价格板块下方) */
.articles-section {
  padding: 80px 0;
  background: rgba(15, 23, 42, 0.5);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.article-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: var(--primary-light);
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.4);
}

.article-card a {
  cursor: pointer;
}

.article-card-media {
  height: 160px;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  cursor: pointer;
}

.article-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(8px);
  color: #38bdf8;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.article-card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.article-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.45;
  margin-bottom: 10px;
}

.article-card-title a:hover {
  color: #38bdf8;
}

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

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 14px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.read-more-link {
  color: #60a5fa;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.read-more-link:hover {
  color: #93c5fd;
  transform: translateX(3px);
}

/* 用户评价 (Testimonials) */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.review-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: var(--transition);
}

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

.stars {
  color: #fbbf24;
  font-size: 0.95rem;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.9rem;
  color: #d1d5db;
  line-height: 1.65;
  flex-grow: 1;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 14px;
}

.user-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: #ffffff;
}

.user-meta-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: #ffffff;
}

.user-meta-role {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* FAQ 常见问题解答 */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.faq-item:hover {
  border-color: var(--card-hover-border);
}

.faq-item summary {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 1.02rem;
  color: #ffffff;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.faq-arrow {
  transition: transform 0.25s ease;
  color: var(--text-dim);
}

.faq-item[open] .faq-arrow {
  transform: rotate(180deg);
  color: #60a5fa;
}

.faq-content {
  padding: 0 24px 22px;
  color: var(--text-muted);
  font-size: 0.93rem;
  line-height: 1.7;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding-top: 16px;
}

/* 页脚 (Footer) 结构 */
.site-footer {
  background: #070a12;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 60px 0 35px;
  margin-top: 40px;
}

.footer-top {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 35px;
}

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

.footer-nav a {
  color: #9ca3af;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
}

.footer-nav a:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
}

/* PBN 友情链接及版权区域 */
.pbn-container {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 25px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.pbn-links-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 20px;
  font-size: 0.92rem;
}

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

/* 强调外链显色处理，保持 dofollow 质感 */
.pbn-link {
  color: var(--pbn-color) !important;
  font-weight: 600;
  text-decoration: none;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  transition: var(--transition);
}

.pbn-link:hover {
  color: #ffffff !important;
  background: rgba(56, 189, 248, 0.25);
  border-color: rgba(56, 189, 248, 0.5);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.35);
}

.copyright {
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* 针对独立详情页通用样式 (文章页与独立政策页) */
.page-container {
  max-width: 860px;
  margin: 40px auto 80px;
  padding: 0 20px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-dim);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: #60a5fa;
}

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

.article-page-header {
  margin-bottom: 35px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 25px;
}

.article-page-header h1 {
  font-size: 2.3rem;
  font-weight: 850;
  line-height: 1.3;
  margin-bottom: 16px;
  color: #ffffff;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.article-content {
  color: #d1d5db;
  font-size: 1.05rem;
  line-height: 1.85;
}

.article-content h2 {
  font-size: 1.6rem;
  font-weight: 750;
  color: #ffffff;
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #93c5fd;
  margin: 24px 0 12px;
}

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

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

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

.article-content blockquote {
  border-left: 4px solid #2563eb;
  background: rgba(37, 99, 235, 0.08);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: #e5e7eb;
}

.article-content a {
  color: #38bdf8;
  text-decoration: underline;
  text-underline-offset: 4px;
  cursor: pointer;
  font-weight: 600;
  display: inline;
  position: relative;
  transition: var(--transition);
}

.article-content a:hover {
  color: #bae6fd;
  text-shadow: 0 0 8px rgba(56, 189, 248, 0.4);
}

.cta-banner {
  margin: 45px 0;
  padding: 30px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(6, 182, 212, 0.15));
  border: 1px solid rgba(37, 99, 235, 0.4);
  border-radius: var(--radius-md);
  text-align: center;
}

.cta-banner h3 {
  font-size: 1.4rem;
  margin-bottom: 10px;
  color: #ffffff;
}

.cta-banner p {
  color: var(--text-muted);
  margin-bottom: 20px;
  font-size: 0.95rem;
}

/* ==========================================================================
   响应式设计 (移动端优先与平滑适配)
   ========================================================================== */
@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero {
    padding: 50px 0 40px;
  }
  .nav-links {
    display: none;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .support-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: none;
  }
  .articles-grid {
    grid-template-columns: 1fr;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .footer-nav {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  .pbn-links-bar {
    flex-direction: column;
    gap: 10px;
  }
  .speed-num {
    font-size: 3rem;
  }
}