@charset "UTF-8";
/* ===================================================================
   TTCLOUD - 赛博深色未来感网络加速平台样式表
   主题色彩规范：
   - 背景色：#05060A
   - 卡片背景：#0D1117
   - 边框色：#1F2937 (悬停发光变 #06B6D4)
   - 主渐变：#06B6D4 (青) -> #6D28D9 (紫)
   - 文本色：石板灰 #94A3B8 / 亮白 #F8FAFC
   =================================================================== */

:root {
  --bg-main: #05060A;
  --bg-card: #0D1117;
  --bg-card-hover: #121824;
  --bg-terminal: #070A10;
  --border-subtle: #1F2937;
  --border-cyan: #06B6D4;
  --cyan-primary: #06B6D4;
  --cyan-glow: rgba(6, 182, 212, 0.35);
  --purple-primary: #6D28D9;
  --purple-glow: rgba(109, 40, 217, 0.35);
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --status-green: #10B981;
  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: 'JetBrains Mono', "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
}

/* 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-main);
  color: var(--text-primary);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  background-color: var(--bg-main);
  /* 淡淡的蓝图网格：1px 线，5% 不透明度 */
  background-image: 
    linear-gradient(to right, rgba(6, 182, 212, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(6, 182, 212, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  background-position: center top;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 容器规范 */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* 标题字体 */
h1, h2, h3, h4, h5, h6, .font-heading {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.font-mono {
  font-family: var(--font-mono);
}

/* 导航栏 - 毛玻璃深色条 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 6, 10, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

.brand-logo-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(109, 40, 217, 0.2));
  border: 1px solid rgba(6, 182, 212, 0.4);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.2);
}

.brand-name {
  background: linear-gradient(135deg, #06B6D4 0%, #A855F7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.25s ease;
  padding: 6px 4px;
  position: relative;
}

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

.nav-link.badge-link {
  position: relative;
}

.nav-link.badge-link::after {
  content: "HOT";
  display: inline-block;
  font-size: 0.65rem;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(6, 182, 212, 0.2);
  color: var(--cyan-primary);
  border: 1px solid rgba(6, 182, 212, 0.4);
  margin-left: 6px;
  vertical-align: middle;
}

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

/* 按钮风格 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan-primary) 0%, var(--purple-primary) 100%);
  color: #FFFFFF;
  box-shadow: 0 0 20px var(--cyan-glow);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.6), 0 0 15px rgba(109, 40, 217, 0.4);
}

.btn-secondary {
  background: rgba(13, 17, 23, 0.85);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  border-color: var(--cyan-primary);
  color: var(--cyan-primary);
  box-shadow: 0 0 18px rgba(6, 182, 212, 0.25);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
}

/* 汉堡菜单按钮 (移动端) */
.mobile-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 8px;
  color: var(--text-primary);
  cursor: pointer;
}

/* 主视觉区 (Hero Section) */
.hero-section {
  position: relative;
  padding: 90px 0 100px;
  overflow: hidden;
}

/* 柔和径向光晕：#6D28D9 紫与 #06B6D4 青 */
.hero-glow-purple {
  position: absolute;
  top: -120px;
  right: 15%;
  width: 580px;
  height: 580px;
  background: radial-gradient(circle, rgba(109, 40, 217, 0.28) 0%, rgba(109, 40, 217, 0) 70%);
  filter: blur(60px);
  pointer-events: none;
  z-index: 0;
}

.hero-glow-cyan {
  position: absolute;
  top: 40px;
  left: 5%;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.22) 0%, rgba(6, 182, 212, 0) 70%);
  filter: blur(55px);
  pointer-events: none;
  z-index: 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}

/* 等宽眉题 */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--cyan-primary);
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 6px 14px;
  border-radius: 9999px;
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}

/* 绿色脉冲圆点状态徽章 */
.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--status-green);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-ring 2s infinite cubic-bezier(0.4, 0, 0.6, 1);
}

@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);
  }
}

/* 60px 渐变大标题 (青 -> 紫) */
.hero-title {
  font-size: 3.75rem; /* 60px */
  line-height: 1.15;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #06B6D4 0%, #A855F7 50%, #6D28D9 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 35px rgba(6, 182, 212, 0.25);
}

.hero-subtitle {
  font-size: 1.18rem;
  line-height: 1.7;
  color: var(--text-secondary); /* 石板灰 */
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.hero-feature-tags {
  display: flex;
  gap: 16px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid rgba(31, 41, 55, 0.8);
}

.hero-tag-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.hero-tag-item svg {
  color: var(--cyan-primary);
}

/* 右侧终端窗口卡片 */
.terminal-window {
  background: var(--bg-terminal);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 20px 45px -15px rgba(0, 0, 0, 0.8), 0 0 25px rgba(6, 182, 212, 0.15);
  transition: all 0.3s ease;
}

.terminal-window:hover {
  border-color: var(--border-cyan);
  box-shadow: 0 20px 50px -10px rgba(6, 182, 212, 0.25), 0 0 25px rgba(6, 182, 212, 0.2);
}

.terminal-header {
  background: #0D1117;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.terminal-controls {
  display: flex;
  gap: 7px;
}

.terminal-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot-red { background-color: #EF4444; }
.dot-yellow { background-color: #F59E0B; }
.dot-green { background-color: #10B981; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.terminal-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--status-green);
  background: rgba(16, 185, 129, 0.1);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.terminal-body {
  padding: 24px 22px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.85;
  color: #CBD5E1;
  min-height: 330px;
}

.terminal-line {
  margin-bottom: 6px;
  word-break: break-all;
}

.terminal-prompt {
  color: var(--cyan-primary);
  margin-right: 8px;
}

.terminal-success {
  color: var(--status-green);
  font-weight: 600;
}

.terminal-highlight {
  color: #A855F7;
}

.terminal-cyan {
  color: #38BDF8;
}

/* 闪烁光标 */
.terminal-cursor {
  display: inline-block;
  width: 8px;
  height: 16px;
  background-color: var(--cyan-primary);
  vertical-align: middle;
  margin-left: 4px;
  animation: blink 1s step-end infinite;
}

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

/* 通用区块头 */
.section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--cyan-primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.3rem;
  line-height: 1.25;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* 卡片基类：#0D1117 背景、1px #1F2937 边框，悬停变青发光 */
.cyber-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 32px 28px;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.cyber-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan-primary), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.cyber-card:hover {
  border-color: var(--border-cyan);
  box-shadow: 0 10px 30px -10px rgba(6, 182, 212, 0.28), 0 0 15px rgba(6, 182, 212, 0.15);
  transform: translateY(-4px);
}

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

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

.feature-icon-wrapper {
  width: 58px;
  height: 58px;
  border-radius: 12px;
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--cyan-primary);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.15);
}

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

.feature-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
}

.feature-specs {
  list-style: none;
  border-top: 1px solid rgba(31, 41, 55, 0.8);
  padding-top: 16px;
  margin-top: auto;
}

.feature-spec-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #CBD5E1;
  margin-bottom: 8px;
}

.feature-spec-item svg {
  color: var(--cyan-primary);
  flex-shrink: 0;
}

/* 流媒体与 AI 支持图卡 */
.streaming-card-box {
  background: linear-gradient(180deg, #0D1117 0%, #080B12 100%);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  padding: 42px 38px;
  position: relative;
  overflow: hidden;
}

.streaming-card-box:hover {
  border-color: var(--border-cyan);
  box-shadow: 0 15px 40px -10px rgba(6, 182, 212, 0.22);
}

.streaming-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 40px;
  align-items: center;
}

.streaming-info-title {
  font-size: 1.85rem;
  line-height: 1.3;
  margin-bottom: 16px;
}

.streaming-info-desc {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

.streaming-badges-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.stream-chip {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(31, 41, 55, 0.9);
  border-radius: 12px;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all 0.25s ease;
}

.stream-chip:hover {
  background: rgba(15, 23, 42, 0.95);
  border-color: rgba(6, 182, 212, 0.45);
  transform: translateY(-2px);
  box-shadow: 0 4px 18px rgba(6, 182, 212, 0.12);
}

.chip-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.chip-icon.netflix { background: rgba(229, 9, 20, 0.15); border: 1px solid rgba(229, 9, 20, 0.35); }
.chip-icon.youtube { background: rgba(255, 0, 0, 0.15); border: 1px solid rgba(255, 0, 0, 0.35); }
.chip-icon.chatgpt { background: rgba(16, 185, 129, 0.15); border: 1px solid rgba(16, 185, 129, 0.35); }
.chip-icon.claude { background: rgba(217, 119, 6, 0.15); border: 1px solid rgba(217, 119, 6, 0.35); }

.chip-details {
  display: flex;
  flex-direction: column;
}

.chip-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.chip-status {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--status-green);
}

/* 价格对比表 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card.popular {
  border-color: var(--cyan-primary);
  background: linear-gradient(180deg, #101726 0%, #0D1117 100%);
  box-shadow: 0 10px 35px -10px rgba(6, 182, 212, 0.35), 0 0 20px rgba(109, 40, 217, 0.25);
  transform: translateY(-8px);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--cyan-primary), var(--purple-primary));
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 9999px;
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.5);
  letter-spacing: 0.05em;
}

.pricing-header {
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(31, 41, 55, 0.8);
  margin-bottom: 24px;
}

.pricing-plan-name {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.pricing-plan-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.pricing-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-top: 18px;
}

.pricing-currency {
  font-size: 1.3rem;
  color: var(--cyan-primary);
  font-weight: 600;
}

.pricing-amount {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  font-family: var(--font-heading);
}

.pricing-period {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: #CBD5E1;
  margin-bottom: 14px;
}

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

.pricing-feature-item.muted {
  color: var(--text-muted);
}

.pricing-feature-item.muted svg {
  color: var(--text-muted);
}

/* FAQ 常见问题手风琴 */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-item:hover {
  border-color: rgba(6, 182, 212, 0.4);
}

.faq-question {
  width: 100%;
  padding: 22px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
}

.faq-icon {
  width: 22px;
  height: 22px;
  color: var(--cyan-primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 24px 22px;
}

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

.review-stars {
  display: flex;
  gap: 4px;
  color: #F59E0B;
  margin-bottom: 14px;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 22px;
}

.reviewer-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid rgba(31, 41, 55, 0.8);
  padding-top: 16px;
}

.reviewer-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(109, 40, 217, 0.2));
  border: 1px solid rgba(6, 182, 212, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--cyan-primary);
  font-family: var(--font-mono);
}

.reviewer-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

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

/* 页脚：严格只保留 4 个标题，在新页面打开 */
.site-footer {
  background: #030407;
  border-top: 1px solid var(--border-subtle);
  padding: 50px 0 35px;
  margin-top: 80px;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 44px;
  list-style: none;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.footer-nav-link {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.25s ease;
  position: relative;
  padding: 6px 12px;
  border-radius: 6px;
}

.footer-nav-link:hover {
  color: var(--cyan-primary);
  background: rgba(6, 182, 212, 0.08);
}

.footer-bottom-text {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* 资讯与内容页专用布局通用样式 */
.article-container {
  max-width: 900px;
  margin: 50px auto 100px;
  padding: 0 24px;
}

.article-hero {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 30px;
  margin-bottom: 40px;
}

.article-category {
  font-family: var(--font-mono);
  color: var(--cyan-primary);
  font-size: 0.85rem;
  margin-bottom: 12px;
  display: inline-block;
}

.article-headline {
  font-size: 2.3rem;
  line-height: 1.3;
  margin-bottom: 18px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #D1D5DB;
}

.article-body h2 {
  font-size: 1.65rem;
  margin: 40px 0 18px;
  color: var(--text-primary);
  border-left: 4px solid var(--cyan-primary);
  padding-left: 14px;
}

.article-body h3 {
  font-size: 1.3rem;
  margin: 28px 0 14px;
  color: #E2E8F0;
}

.article-body p {
  margin-bottom: 22px;
}

.article-body ul, .article-body ol {
  margin-bottom: 24px;
  padding-left: 28px;
}

.article-body li {
  margin-bottom: 10px;
}

.article-body a {
  color: var(--cyan-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.2s;
}

.article-body a:hover {
  color: #38BDF8;
}

.article-body blockquote {
  background: rgba(13, 17, 23, 0.8);
  border-left: 4px solid var(--purple-primary);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  margin: 28px 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* 推荐文章列表卡片网格 */
.articles-catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.article-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.article-card-title {
  font-size: 1.25rem;
  line-height: 1.4;
  margin-bottom: 12px;
}

.article-card-title a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s;
}

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

.article-card-excerpt {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

/* 文章内表格与相关推荐样式规范 */
.article-table-wrap {
  overflow-x: auto;
  margin: 28px 0;
  border-radius: 12px;
  border: 1px solid var(--border-subtle);
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
  background: var(--bg-card);
}

.article-table th {
  background: rgba(15, 23, 42, 0.9);
  color: var(--cyan-primary);
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}

.article-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(31, 41, 55, 0.6);
  color: #D1D5DB;
}

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

.article-table tr:hover td {
  background: rgba(6, 182, 212, 0.04);
}

.related-articles-box {
  margin: 40px 0;
  padding: 24px;
  background: rgba(13, 17, 23, 0.75);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
}

.related-articles-title {
  font-size: 1.15rem;
  margin-bottom: 16px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.related-articles-list {
  list-style: none !important;
  padding-left: 0 !important;
  margin-bottom: 0 !important;
}

.related-articles-item {
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(31, 41, 55, 0.6);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.related-articles-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.related-articles-item a {
  color: #E2E8F0;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.related-articles-item a:hover {
  color: var(--cyan-primary);
}

/* ===================================================================
   实时公告微广播条 (Live Announcement Ticker Bar)
   =================================================================== */
.live-ticker-wrap {
  background: rgba(6, 182, 212, 0.05);
  border-bottom: 1px solid rgba(6, 182, 212, 0.2);
  padding: 10px 0;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.live-ticker-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.ticker-content {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow: hidden;
}

.ticker-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: #06B6D4;
  background: rgba(6, 182, 212, 0.15);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid rgba(6, 182, 212, 0.35);
  white-space: nowrap;
}

.ticker-text {
  color: #E2E8F0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ticker-link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--cyan-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  transition: color 0.2s;
}

.ticker-link:hover {
  color: #38BDF8;
}

/* ===================================================================
   资讯中心 Tab 切换与时间轴公告流
   =================================================================== */
.news-tab-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.tab-btn {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 8px;
  background: rgba(13, 17, 23, 0.85);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tab-btn:hover {
  border-color: var(--cyan-primary);
  color: var(--text-primary);
}

.tab-btn.active {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(109, 40, 217, 0.25));
  border-color: var(--cyan-primary);
  color: #FFFFFF;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.25);
}

.timeline-filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.filter-pill {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 5px 14px;
  border-radius: 20px;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.filter-pill:hover, .filter-pill.active {
  background: rgba(6, 182, 212, 0.15);
  border-color: var(--cyan-primary);
  color: var(--cyan-primary);
}

/* 垂直时间轴 */
.cyber-timeline {
  position: relative;
  padding-left: 32px;
  margin-bottom: 60px;
}

.cyber-timeline::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 11px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan-primary) 0%, rgba(109, 40, 217, 0.5) 70%, rgba(31, 41, 55, 0.3) 100%);
}

.timeline-item {
  position: relative;
  margin-bottom: 24px;
  transition: all 0.25s ease;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 20px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #05060A;
  border: 2px solid var(--cyan-primary);
  box-shadow: 0 0 10px var(--cyan-primary);
  z-index: 2;
  transition: all 0.25s ease;
}

.timeline-item:hover::before {
  background: var(--cyan-primary);
  transform: scale(1.3);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 20px 22px;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.timeline-card:hover {
  border-color: var(--cyan-primary);
  box-shadow: 0 6px 20px -5px rgba(6, 182, 212, 0.25);
  transform: translateX(4px);
}

.timeline-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.timeline-tag-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-chip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}

.status-chip.update {
  background: rgba(6, 182, 212, 0.12);
  color: #38BDF8;
  border: 1px solid rgba(6, 182, 212, 0.35);
}

.status-chip.tips {
  background: rgba(245, 158, 11, 0.12);
  color: #FBBF24;
  border: 1px solid rgba(245, 158, 11, 0.35);
}

.status-chip.maintenance {
  background: rgba(239, 68, 68, 0.12);
  color: #F87171;
  border: 1px solid rgba(239, 68, 68, 0.35);
}

.status-chip.recovered {
  background: rgba(16, 185, 129, 0.12);
  color: #34D399;
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.timeline-time {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.timeline-text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: #E2E8F0;
  word-break: break-word;
}

.timeline-text a {
  color: var(--cyan-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.timeline-text a:hover {
  color: #38BDF8;
}

/* 响应式媒体查询 (@media) */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .hero-title {
    font-size: 3rem;
  }

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

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

  .streaming-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-section {
    padding: 50px 0 60px;
  }

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

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
    min-height: 50px;
    font-size: 1rem;
  }

  /* 手机端完美单栏显示 */
  .features-grid, .pricing-grid, .reviews-grid, .articles-catalog-grid {
    grid-template-columns: 1fr;
  }

  .streaming-badges-grid {
    grid-template-columns: 1fr;
  }

  /* 移动端导航栏 */
  .mobile-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 74px;
    left: 0;
    right: 0;
    background: rgba(5, 6, 10, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    display: none;
  }

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

  .nav-cta {
    display: none;
  }

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

  .footer-nav-link {
    width: 100%;
    text-align: center;
    padding: 10px;
    background: rgba(13, 17, 23, 0.6);
    border: 1px solid var(--border-subtle);
  }
}