/* ==========================================================================
   赛博云 (CyberCloud) - 极速网络加速器官方样式表
   主题色彩规范：
   - 宇宙深空背景：#04060F
   - 主文字颜色：#DCE6FF
   - 科技蓝强调色：#5B8CFF
   - 暖金高亮强调：#FFD166
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;700;900&family=Outfit:wght@500;600;700;800;900&display=swap');

:root {
  --bg-deep: #04060F;
  --bg-surface: #0B1124;
  --bg-surface-elevated: #111B38;
  --bg-glass: rgba(11, 17, 36, 0.75);
  --border-subtle: rgba(91, 140, 255, 0.18);
  --border-active: rgba(91, 140, 255, 0.55);
  
  --text-primary: #DCE6FF;
  --text-secondary: #94A6D1;
  --text-muted: #5F73A1;
  
  --accent-blue: #5B8CFF;
  --accent-blue-glow: rgba(91, 140, 255, 0.35);
  --accent-amber: #FFD166;
  --accent-amber-glow: rgba(255, 209, 102, 0.35);
  --accent-emerald: #06D6A0;
  
  --font-heading: 'Outfit', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Manrope', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.7), 0 0 1px 1px rgba(91, 140, 255, 0.15);
  --shadow-glow: 0 0 25px rgba(91, 140, 255, 0.4);
  --transition-normal: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.68;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 标题字体 */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: #FFFFFF;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

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

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

/* 容器 */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 顶部导航栏 */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(4, 6, 15, 0.85);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition-normal);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: #FFFFFF;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-blue), #2347C5);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px var(--accent-blue-glow);
  color: #FFF;
  font-size: 1.1rem;
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover, .nav-link.active {
  color: #FFFFFF;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent-blue);
  transition: width 0.25s ease;
  border-radius: 2px;
}

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

.nav-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 209, 102, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(255, 209, 102, 0.35);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 700;
  margin-left: 4px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* 按钮通用系统 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-normal);
  text-align: center;
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #5B8CFF 0%, #3065E0 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 18px var(--accent-blue-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(91, 140, 255, 0.55);
  filter: brightness(1.08);
}

.btn-secondary {
  background: rgba(91, 140, 255, 0.08);
  border: 1px solid var(--border-active);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(91, 140, 255, 0.18);
  color: #FFFFFF;
  transform: translateY(-2px);
  border-color: var(--accent-blue);
}

.btn-amber {
  background: linear-gradient(135deg, #FFD166 0%, #F59E0B 100%);
  color: #04060F;
  font-weight: 800;
  box-shadow: 0 4px 18px var(--accent-amber-glow);
}

.btn-amber:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 209, 102, 0.55);
}

.btn-lg {
  padding: 15px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
}

/* 移动端菜单切换按钮 */
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 1.6rem;
  cursor: pointer;
  padding: 6px;
}

/* HERO 主视觉区 */
.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  padding: 60px 0 80px;
  overflow: hidden;
  background: radial-gradient(circle at 75% 35%, rgba(91, 140, 255, 0.12) 0%, transparent 60%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 48px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(91, 140, 255, 0.1);
  border: 1px solid var(--border-active);
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, #FFFFFF 20%, #5B8CFF 70%, #94B8FF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-sub strong {
  color: var(--accent-amber);
  font-weight: 700;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding-top: 28px;
  border-top: 1px solid var(--border-subtle);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 1.7rem;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.2;
}

.stat-value span {
  color: var(--accent-blue);
  font-size: 1.1rem;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* 3D 地球视觉容器 */
.globe-wrapper {
  position: relative;
  width: 100%;
  height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#globe-container {
  width: 100%;
  height: 100%;
  cursor: grab;
}

#globe-container:active {
  cursor: grabbing;
}

/* 节点悬浮提示窗 Tooltip */
.globe-tooltip {
  position: absolute;
  pointer-events: none;
  padding: 8px 14px;
  background: rgba(11, 17, 36, 0.92);
  border: 1px solid var(--accent-amber);
  border-radius: var(--radius-sm);
  color: #FFF;
  font-size: 0.82rem;
  font-family: var(--font-heading);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.7), 0 0 10px var(--accent-amber-glow);
  opacity: 0;
  transform: translate(-50%, -130%);
  transition: opacity 0.15s ease;
  z-index: 50;
  white-space: nowrap;
}

.globe-tooltip .city-name {
  font-weight: 700;
  color: var(--accent-amber);
}

.globe-tooltip .ping-val {
  color: var(--accent-emerald);
  font-weight: 600;
  margin-left: 6px;
}

/* WebGL 优雅降级静态 SVG 矢量球 */
.globe-fallback {
  display: none;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
}

.globe-fallback svg {
  max-width: 440px;
  filter: drop-shadow(0 0 30px var(--accent-blue-glow));
}

/* 通用章节规范 */
.section {
  padding: 96px 0;
  position: relative;
}

.section-alt {
  background: linear-gradient(180deg, rgba(11, 17, 36, 0.4) 0%, rgba(4, 6, 15, 0.8) 100%);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-blue);
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.35rem;
  font-weight: 800;
  margin-bottom: 16px;
}

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

/* 核心优势卡片 3 列 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  box-shadow: var(--shadow-card);
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
  opacity: 0;
  transition: var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-active);
  box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.8), 0 0 20px var(--accent-blue-glow);
}

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

.feature-icon-box {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-md);
  background: rgba(91, 140, 255, 0.12);
  border: 1px solid var(--border-active);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  margin-bottom: 24px;
  color: var(--accent-blue);
}

.feature-card h3 {
  font-size: 1.35rem;
  margin-bottom: 14px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.feature-meta-list {
  list-style: none;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.feature-meta-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.feature-meta-list li svg {
  color: var(--accent-emerald);
  flex-shrink: 0;
}

/* 流媒体与 AI 支持卡片 */
.unlock-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.unlock-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition-normal);
}

.unlock-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-active);
  background: var(--bg-surface-elevated);
}

.unlock-badge-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  background: rgba(91, 140, 255, 0.08);
  border: 1px solid var(--border-subtle);
}

.unlock-card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.unlock-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.unlock-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-top: 14px;
}

.unlock-tag {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: rgba(91, 140, 255, 0.1);
  color: var(--accent-blue);
  border: 1px solid rgba(91, 140, 255, 0.2);
}

/* 价格区域 */
.pricing-wrap {
  margin-top: 40px;
}

.pricing-table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  box-shadow: var(--shadow-card);
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  text-align: center;
  font-size: 0.92rem;
  white-space: nowrap;
}

.pricing-table th, .pricing-table td {
  padding: 16px 18px;
  border-bottom: 1px solid rgba(91, 140, 255, 0.1);
}

.pricing-table th {
  background: var(--bg-surface-elevated);
  font-family: var(--font-heading);
  font-weight: 700;
  color: #FFFFFF;
  font-size: 0.95rem;
}

.pricing-table tbody tr:hover {
  background: rgba(91, 140, 255, 0.04);
}

.pricing-table .highlight-row {
  background: rgba(91, 140, 255, 0.08);
}

.pricing-table .tier-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 700;
  background: rgba(91, 140, 255, 0.15);
  color: var(--accent-blue);
  border: 1px solid rgba(91, 140, 255, 0.3);
}

.pricing-table .tier-badge.hot {
  background: rgba(255, 209, 102, 0.2);
  color: var(--accent-amber);
  border-color: rgba(255, 209, 102, 0.5);
}

.price-num {
  font-family: var(--font-heading);
  font-weight: 800;
  color: #FFFFFF;
  font-size: 1.05rem;
}

.price-num::before {
  content: '¥';
  font-size: 0.8rem;
  margin-right: 2px;
  color: var(--accent-amber);
}

/* 附加套餐栏（按量付费 & Netflix） */
.extra-plans-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-top: 40px;
}

.extra-plan-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
}

.extra-plan-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.extra-items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 24px;
}

.extra-item-pill {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--text-primary);
}

.extra-item-pill strong {
  color: var(--accent-amber);
}

.payment-note-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(91, 140, 255, 0.06);
  border: 1px dashed var(--border-active);
  border-radius: var(--radius-md);
  padding: 16px 24px;
  margin-top: 32px;
  font-size: 0.9rem;
}

.payment-methods {
  display: flex;
  align-items: center;
  gap: 16px;
  font-weight: 600;
}

.payment-pill {
  background: rgba(255, 255, 255, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  color: #FFF;
}

/* 实测评测与评价区 */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

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

.review-text {
  font-size: 0.94rem;
  color: var(--text-primary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.reviewer-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.reviewer-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blue), #1E3A8A);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #FFF;
  font-size: 1rem;
}

.reviewer-meta h4 {
  font-size: 0.92rem;
  color: #FFF;
}

.reviewer-meta span {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.benchmark-box {
  background: linear-gradient(135deg, rgba(91, 140, 255, 0.12) 0%, rgba(11, 17, 36, 0.9) 100%);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin-top: 40px;
}

.benchmark-box h3 {
  font-size: 1.25rem;
  margin-bottom: 16px;
  color: #FFF;
  display: flex;
  align-items: center;
  gap: 10px;
}

.benchmark-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 16px;
}

.benchmark-stat-card {
  background: rgba(4, 6, 15, 0.6);
  border: 1px solid var(--border-subtle);
  padding: 16px;
  border-radius: var(--radius-sm);
  text-align: center;
}

.benchmark-stat-card .val {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--accent-emerald);
}

.benchmark-stat-card .desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* FAQ 常见问题手风琴 */
.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

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

.faq-question {
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: #FFFFFF;
  user-select: none;
}

.faq-toggle-icon {
  font-size: 1.2rem;
  transition: transform 0.28s ease;
  color: var(--accent-blue);
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.3s ease;
  padding: 0 28px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 28px 24px 28px;
}

/* 页脚 Footer - 严格保留 4 个标题规范 */
.footer {
  background: #020409;
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 36px;
  color: var(--text-secondary);
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.footer-link {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition-normal);
}

.footer-link:hover {
  color: var(--accent-blue);
  background: rgba(91, 140, 255, 0.08);
}

.footer-bottom {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
}

/* 资讯与独立文章页面公用样式 */
.article-header {
  padding: 70px 0 40px;
  text-align: center;
  background: radial-gradient(circle at 50% 20%, rgba(91, 140, 255, 0.1) 0%, transparent 70%);
}

.article-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 24px 100px;
}

.article-content {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 48px;
  font-size: 1.02rem;
  line-height: 1.85;
}

.article-content h1 {
  font-size: 2.2rem;
  margin-bottom: 20px;
}

.article-content h2 {
  font-size: 1.55rem;
  margin: 36px 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-subtle);
  color: #FFFFFF;
}

.article-content h3 {
  font-size: 1.25rem;
  margin: 24px 0 12px;
  color: var(--accent-blue);
}

.article-content p {
  margin-bottom: 20px;
  color: var(--text-primary);
}

.article-content ul, .article-content ol {
  margin-bottom: 24px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 8px;
  color: var(--text-secondary);
}

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

.article-content blockquote {
  border-left: 4px solid var(--accent-blue);
  background: rgba(91, 140, 255, 0.06);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  font-style: normal;
  color: var(--text-secondary);
}

.article-link-box {
  display: inline-block;
  color: var(--accent-blue);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.2s ease;
}

.article-link-box:hover {
  color: #94B8FF;
}

/* 资讯列表网格 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.news-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-normal);
}

.news-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-active);
  box-shadow: var(--shadow-card);
}

.news-card-date {
  font-size: 0.8rem;
  color: var(--accent-amber);
  margin-bottom: 8px;
  font-weight: 600;
}

.news-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.news-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
}

.news-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ==========================================================================
   响应式设计与媒体查询 (@media)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .hero-sub {
    margin: 0 auto 32px;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    max-width: 600px;
    margin: 0 auto;
  }

  .globe-wrapper {
    height: 420px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }

  .unlock-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .reviews-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }

  .extra-plans-grid {
    grid-template-columns: 1fr;
  }

  .benchmark-stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .nav-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(4, 6, 15, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    text-align: center;
  }

  .nav-menu.active {
    display: flex;
  }

  .hero {
    padding: 30px 0 60px;
  }

  .hero-title {
    font-size: 2.3rem;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .globe-wrapper {
    height: 340px;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.85rem;
  }

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

  .payment-note-bar {
    flex-direction: column;
    gap: 14px;
    text-align: center;
  }

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

  .article-content {
    padding: 24px 18px;
  }

  .btn {
    width: 100%;
    max-width: 320px;
  }
}

/* 动效适配规范 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}