/* ==========================================================================
   红杏云 (HongXingYun) - 官方极速轻量原生样式表
   零外部依赖 | 移动端优先 | 秒开级加载速度
   ========================================================================== */

:root {
  --color-bg: #090d16;
  --color-surface: #111827;
  --color-surface-hover: #1f293d;
  --color-card: #151d30;
  --color-border: #1e293b;
  --color-border-bright: #334155;
  --color-primary: #f43f5e;
  --color-primary-hover: #e11d48;
  --color-accent: #fb7185;
  --color-cyan: #06b6d4;
  --color-text-main: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b;
  --color-success: #10b981;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 25px -5px rgba(244, 63, 94, 0.35);
  --transition-fast: 0.2s ease;
  --max-width: 1200px;
}

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

html {
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-main);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
}

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

img, svg {
  vertical-align: middle;
  max-width: 100%;
}

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

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(9, 13, 22, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.logo-img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  object-fit: cover;
  box-shadow: 0 0 12px rgba(244, 63, 94, 0.35);
  border: 1.5px solid rgba(244, 63, 94, 0.5);
  background-color: #ffffff;
  flex-shrink: 0;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.brand-logo:hover .logo-img {
  transform: scale(1.05);
  box-shadow: 0 0 16px rgba(244, 63, 94, 0.55);
}

.logo-dot {
  width: 12px;
  height: 12px;
  background: linear-gradient(135deg, var(--color-primary), #fb923c);
  border-radius: var(--radius-full);
  box-shadow: 0 0 10px var(--color-primary);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: none;
}

.nav-toggle-btn {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 36px;
  height: 36px;
  padding: 8px 6px;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  z-index: 105;
}

.nav-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-border-bright);
}

.hamburger-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-main);
  border-radius: 2px;
  transition: all 0.25s ease;
}

.nav-links {
  display: none;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-link {
  font-size: 0.938rem;
  color: var(--color-text-muted);
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

.header-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  color: #fff;
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-glow);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.header-cta-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 30px -3px rgba(244, 63, 94, 0.5);
  color: #fff;
}

/* ==========================================================================
   Hero Section (现代科技感、加长排版视觉区)
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 64px 0 52px;
  text-align: center;
  background: radial-gradient(circle at 50% 15%, rgba(244, 63, 94, 0.16) 0%, rgba(17, 24, 39, 0) 65%),
              linear-gradient(180deg, rgba(15, 23, 42, 0.6) 0%, rgba(9, 13, 22, 1) 100%);
  border-bottom: 1px solid var(--color-border);
  overflow: hidden;
}

.hero-brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background-color: rgba(244, 63, 94, 0.1);
  border: 1px solid rgba(244, 63, 94, 0.35);
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
  box-shadow: 0 0 15px rgba(244, 63, 94, 0.15);
}

.badge-pulse {
  width: 8px;
  height: 8px;
  background-color: var(--color-success);
  border-radius: var(--radius-full);
  box-shadow: 0 0 8px var(--color-success);
  display: inline-block;
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.15); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-title {
  font-size: 2.35rem;
  line-height: 1.25;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 18px;
  letter-spacing: -0.025em;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: center;
}

.hero-title-highlight {
  background: linear-gradient(135deg, #ffffff 20%, #fb7185 85%, #f43f5e 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 2.85rem;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.hero-title-sub {
  font-size: 1.35rem;
  font-weight: 600;
  color: #cbd5e1;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 780px;
  margin: 0 auto 28px;
  line-height: 1.75;
}

/* 4项核心亮点卡片行 */
.hero-highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 12px;
  max-width: 960px;
  margin: 0 auto 32px;
}

.hero-highlight-pill {
  background: rgba(21, 29, 48, 0.75);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: all var(--transition-fast);
}

.hero-highlight-pill:hover {
  border-color: var(--color-primary);
  background-color: var(--color-surface-hover);
  transform: translateY(-2px);
}

.hero-highlight-icon {
  font-size: 1.3rem;
  line-height: 1;
}

.hero-highlight-text {
  display: flex;
  flex-direction: column;
}

.hero-highlight-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.hero-highlight-sub {
  font-size: 0.775rem;
  color: var(--color-text-dim);
}

.hero-cta-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.hero-trust-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.825rem;
  color: var(--color-text-dim);
}

.hero-trust-bar span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-glow);
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px -2px rgba(244, 63, 94, 0.6);
  color: #fff;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-bright);
  color: var(--color-text-main);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.btn-secondary:hover {
  background-color: var(--color-surface-hover);
  border-color: var(--color-text-muted);
}

/* ==========================================================================
   Pricing Section (所有价格同排展示)
   ========================================================================== */
.pricing-section {
  padding: 40px 0;
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.5) 0%, rgba(9, 13, 22, 0.8) 100%);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-head {
  text-align: center;
  margin-bottom: 32px;
}

.section-tag {
  display: inline-block;
  font-size: 0.813rem;
  font-weight: 700;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* 同排价格网格 */
.pricing-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  align-items: stretch;
}

.pricing-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.pricing-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: 0 8px 24px -4px rgba(0, 0, 0, 0.5);
}

.pricing-card.featured {
  border-color: var(--color-primary);
  background: linear-gradient(180deg, #182035 0%, #12192b 100%);
  box-shadow: 0 0 20px -5px rgba(244, 63, 94, 0.25);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  right: 18px;
  background: linear-gradient(135deg, var(--color-primary), #fb923c);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.pricing-tier-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.pricing-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 12px;
}

.pricing-currency {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary);
}

.pricing-amount {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-text-main);
  line-height: 1;
}

.pricing-period {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.pricing-limit-info {
  background-color: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 0.825rem;
  color: var(--color-accent);
  margin-bottom: 16px;
  text-align: center;
}

.pricing-features {
  list-style: none;
  margin-bottom: 20px;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.pricing-features li::before {
  content: "✓";
  color: var(--color-success);
  font-weight: 700;
}

.pricing-cta-btn {
  display: block;
  width: 100%;
  padding: 10px;
  text-align: center;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-bright);
  color: var(--color-text-main);
  font-size: 0.938rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.pricing-card.featured .pricing-cta-btn,
.pricing-cta-btn:hover {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  border-color: transparent;
  color: #fff;
  box-shadow: var(--shadow-glow);
}

/* ==========================================================================
   Core Advantages (3个图文卡片) + 流媒体与AI支持
   ========================================================================== */
.features-section {
  padding: 48px 0;
}

.cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

.feature-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-border-bright);
}

.feature-icon {
  width: 44px;
  height: 44px;
  background-color: rgba(244, 63, 94, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.feature-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.feature-card-desc {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* 流媒体与AI支持卡片 */
.unlock-box {
  background: linear-gradient(135deg, #131b2e 0%, #161e33 100%);
  border: 1px solid var(--color-border-bright);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .unlock-box {
    grid-template-columns: 1fr 1fr;
  }
}

.unlock-group-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.unlock-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.unlock-tag {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 0.85rem;
  color: var(--color-text-main);
}

/* ==========================================================================
   Content Navigation (4-6项主导航)
   ========================================================================== */
.content-nav-section {
  padding: 32px 0;
  background-color: rgba(17, 24, 39, 0.4);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.portal-nav-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
}

.portal-nav-btn {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  text-align: center;
  transition: all var(--transition-fast);
}

.portal-nav-btn:hover {
  background-color: var(--color-surface-hover);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.portal-nav-icon {
  font-size: 1.25rem;
  margin-bottom: 4px;
}

.portal-nav-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.portal-nav-sub {
  font-size: 0.775rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   Content Cards Grid (12-15个独立内容与深度文章)
   ========================================================================== */
.topics-section {
  padding: 48px 0;
}

.cards-grid-topics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.topic-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.topic-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.topic-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  font-size: 0.8rem;
  color: var(--color-cyan);
  font-weight: 600;
}

.topic-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 8px;
  line-height: 1.4;
}

.topic-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  flex-grow: 1;
}

.topic-read-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
}

.topic-read-link:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-section {
  padding: 48px 0;
  background-color: rgba(17, 24, 39, 0.4);
  border-top: 1px solid var(--color-border);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.faq-q {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.faq-a {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   User Reviews Section
   ========================================================================== */
.reviews-section {
  padding: 48px 0;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.review-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.review-stars {
  color: #f59e0b;
  margin-bottom: 10px;
  font-size: 0.9rem;
}

.review-text {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  font-style: italic;
}

.reviewer-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.reviewer-avatar {
  width: 36px;
  height: 36px;
  background-color: var(--color-surface-hover);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-accent);
}

.reviewer-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-main);
}

.reviewer-role {
  font-size: 0.775rem;
  color: var(--color-text-dim);
}

/* ==========================================================================
   Bottom CTA Banner
   ========================================================================== */
.bottom-cta-section {
  padding: 48px 0;
  text-align: center;
}

.bottom-cta-card {
  background: linear-gradient(135deg, rgba(244, 63, 94, 0.15) 0%, rgba(30, 41, 59, 0.8) 100%);
  border: 1px solid rgba(244, 63, 94, 0.3);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  max-width: 900px;
  margin: 0 auto;
}

.bottom-cta-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.bottom-cta-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 24px;
}

/* ==========================================================================
   Site Footer (严格只保留四个链接: 网站地图、关于我们、服务条款、隐私政策)
   ========================================================================== */
.site-footer {
  background-color: #060910;
  border-top: 1px solid var(--color-border);
  padding: 36px 0 24px;
  text-align: center;
}

.footer-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 18px;
  list-style: none;
}

.footer-nav a {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

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

.footer-copyright {
  font-size: 0.813rem;
  color: var(--color-text-dim);
}

/* ==========================================================================
   Article / Content Page Specific Styles
   ========================================================================== */
.page-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 36px 20px 60px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--color-text-dim);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--color-text-muted);
}

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

.page-header {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 20px;
  margin-bottom: 24px;
}

.page-h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-text-main);
  line-height: 1.3;
  margin-bottom: 12px;
}

.page-meta-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--color-text-dim);
  flex-wrap: wrap;
}

.page-meta-badge {
  background-color: rgba(244, 63, 94, 0.1);
  color: var(--color-accent);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

/* 文章正文样式 */
.article-content {
  color: #cbd5e1;
  font-size: 1.02rem;
  line-height: 1.8;
}

.article-content h2 {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-top: 36px;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.article-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #e2e8f0;
  margin-top: 24px;
  margin-bottom: 10px;
}

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

.article-content ul, .article-content ol {
  margin: 0 0 20px 24px;
  color: #cbd5e1;
}

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

.article-content strong {
  color: #fff;
}

.article-content table {
  display: block;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.9rem;
}

.article-content th, .article-content td {
  border: 1px solid var(--color-border);
  padding: 10px 14px;
  text-align: left;
}

.article-content th {
  background-color: var(--color-surface);
  color: var(--color-text-main);
  font-weight: 600;
}

.article-content tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.02);
}

.article-callout {
  background-color: rgba(244, 63, 94, 0.08);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 0.95rem;
  color: #f1f5f9;
}

.inline-cta-box {
  background: linear-gradient(135deg, rgba(21, 29, 48, 0.9) 0%, rgba(31, 41, 61, 0.9) 100%);
  border: 1px solid rgba(244, 63, 94, 0.35);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  margin: 28px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.inline-cta-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: #f8fafc;
}

.inline-cta-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-glow);
  white-space: nowrap;
}

.inline-cta-btn:hover {
  transform: translateY(-1px);
  color: #fff;
}

.article-footer-cta {
  background: linear-gradient(180deg, #151d30 0%, #101625 100%);
  border: 1px solid var(--color-border-bright);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  margin-top: 40px;
}

.article-footer-cta h3 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}

.article-footer-cta p {
  font-size: 0.925rem;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

/* 内部相关文章推荐与上一篇/下一篇互联导航 */
.article-prev-next {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 36px;
  margin-bottom: 24px;
}

@media (min-width: 640px) {
  .article-prev-next {
    grid-template-columns: 1fr 1fr;
  }
}

.prev-next-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-fast);
}

.prev-next-card:hover {
  border-color: var(--color-primary);
  background-color: var(--color-surface-hover);
  transform: translateY(-2px);
}

.prev-next-label {
  font-size: 0.775rem;
  color: var(--color-primary);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.prev-next-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-main);
  line-height: 1.4;
}

.context-link {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
  font-weight: 500;
}

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

.related-posts {
  margin-top: 40px;
  border-top: 1px solid var(--color-border);
  padding-top: 28px;
}

.related-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 16px;
}

.related-section-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-cyan);
  margin-top: 20px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.related-links-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}

.related-link-item {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.related-link-item strong {
  color: var(--color-text-main);
  font-size: 0.925rem;
}

.related-link-item span {
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

.related-link-item:hover {
  border-color: var(--color-primary);
  color: var(--color-text-main);
  background-color: var(--color-surface-hover);
  transform: translateY(-1px);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (min-width: 769px) {
  .nav-links {
    display: flex;
  }
}

@media (max-width: 768px) {
  .nav-toggle-btn {
    display: flex;
  }

  .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    width: 100%;
    background-color: rgba(9, 13, 22, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 20px 24px;
    gap: 6px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.85);
    transform: translateY(-130%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
    z-index: 99;
  }

  .nav-toggle:checked ~ .nav-links {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle:checked ~ .header-right .nav-toggle-btn .hamburger-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle:checked ~ .header-right .nav-toggle-btn .hamburger-bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle:checked ~ .header-right .nav-toggle-btn .hamburger-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .nav-link {
    font-size: 1rem;
    padding: 11px 16px;
    border-radius: var(--radius-sm);
    display: block;
    background-color: rgba(255, 255, 255, 0.02);
  }

  .nav-link:hover, .nav-link.active {
    background-color: rgba(244, 63, 94, 0.12);
    color: var(--color-accent);
  }

  .hero-title-highlight {
    font-size: 2.25rem;
  }
  .hero-title-sub {
    font-size: 1.15rem;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }

  .page-container {
    padding: 24px 16px 44px;
  }

  .hero-section {
    padding: 38px 0 28px;
  }

  .hero-brand-badge {
    font-size: 0.775rem;
    padding: 4px 12px;
    margin-bottom: 14px;
  }

  .hero-title {
    margin-bottom: 14px;
  }

  .hero-title-highlight {
    font-size: 1.85rem;
  }

  .hero-title-sub {
    font-size: 1rem;
    line-height: 1.4;
  }

  .hero-desc {
    font-size: 0.925rem;
    line-height: 1.65;
    margin-bottom: 20px;
  }

  .hero-highlights-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 24px;
  }

  .hero-highlight-pill {
    padding: 8px 10px;
    gap: 8px;
  }

  .hero-highlight-icon {
    font-size: 1.15rem;
  }

  .hero-highlight-title {
    font-size: 0.8rem;
  }

  .hero-highlight-sub {
    font-size: 0.688rem;
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 10px;
  }

  .hero-cta-group .btn-primary,
  .hero-cta-group .btn-secondary {
    width: 100%;
    text-align: center;
    justify-content: center;
    padding: 12px 18px;
    font-size: 0.95rem;
  }

  .hero-trust-bar {
    flex-direction: column;
    gap: 6px;
    font-size: 0.775rem;
  }

  /* 同排套餐横向滑动与吸附 (所有价格同排) */
  .pricing-row {
    display: flex;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    gap: 14px;
    padding: 10px 4px 20px;
    margin: 0 -16px;
    padding-left: 16px;
    padding-right: 16px;
  }

  .pricing-card {
    flex: 0 0 82%;
    max-width: 290px;
    scroll-snap-align: start;
  }

  /* 核心优势与图文卡片 */
  .cards-grid-3 {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .unlock-box {
    grid-template-columns: 1fr;
    padding: 20px 16px;
  }

  /* 导航网格为 2 列 */
  .portal-nav-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .portal-nav-btn {
    padding: 12px 10px;
  }

  .portal-nav-title {
    font-size: 0.875rem;
  }

  .portal-nav-sub {
    font-size: 0.725rem;
  }

  /* 话题与评测卡片单列 */
  .cards-grid-topics {
    grid-template-columns: 1fr;
  }

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

  .bottom-cta-card {
    padding: 32px 16px;
  }

  .bottom-cta-title {
    font-size: 1.45rem;
  }

  .footer-nav {
    gap: 16px;
    font-size: 0.85rem;
  }

  .page-h1 {
    font-size: 1.55rem;
    line-height: 1.35;
  }

  .article-content {
    font-size: 0.95rem;
    line-height: 1.75;
  }

  .article-content table {
    font-size: 0.8rem;
    white-space: nowrap;
  }

  .inline-cta-box {
    flex-direction: column;
    align-items: flex-start;
    padding: 16px;
  }

  .inline-cta-btn {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .article-prev-next {
    grid-template-columns: 1fr;
  }

  .related-links-grid {
    grid-template-columns: 1fr;
  }
}