/* ==========================================================================
   一元机场 / YIYUAN NODE - 赛博终端黑客风纯原生CSS样式表
   零重型框架依赖 | 极致加载速度 | 响应式媒体查询
   ========================================================================== */

:root {
  --bg-color: #0a0e0a;
  --bg-card: #0d150e;
  --bg-card-hover: #122014;
  --bg-code: #050805;
  --primary-neon: #00ff88;
  --accent-cyan: #00ffcc;
  --text-main: #e2fbe5;
  --text-muted: #6e9974;
  --border-dark: #1b351e;
  --border-neon: #00ff88;
  --border-glow: rgba(0, 255, 136, 0.25);
  --font-mono: 'JetBrains Mono', 'Cascadia Code', 'SF Mono', Consolas, 'Courier New', monospace;
  --font-display: 'Major Mono Display', 'JetBrains Mono', monospace;
}

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

html {
  font-family: var(--font-mono);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.6;
  font-size: 15px;
  scroll-behavior: smooth;
}

body {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--bg-color);
  background-image: 
    linear-gradient(rgba(0, 255, 136, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 136, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* CRT 扫描线与荧光微光复古效果 (纯CSS无性能开销) */
body::after {
  content: " ";
  position: fixed;
  top: 0; left: 0; bottom: 0; right: 0;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.28) 50%);
  background-size: 100% 4px;
  z-index: 999;
  pointer-events: none;
  opacity: 0.65;
}

/* 容器与网格 */
.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ASCII风格分割线 */
.ascii-divider {
  color: var(--border-dark);
  text-align: center;
  font-family: var(--font-mono);
  padding: 24px 0;
  user-select: none;
  overflow: hidden;
  white-space: nowrap;
  letter-spacing: 2px;
}

/* 顶部导航栏 */
.terminal-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(10, 14, 10, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-dark);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--primary-neon);
  font-weight: bold;
  font-size: 1.15rem;
  letter-spacing: 1px;
}

.brand-prompt {
  color: var(--accent-cyan);
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 16px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  padding: 6px 10px;
  border-radius: 2px;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary-neon);
  border-color: var(--border-dark);
  background-color: rgba(0, 255, 136, 0.05);
}

.nav-links a.nav-highlight {
  color: var(--accent-cyan);
  border-color: rgba(0, 255, 204, 0.4);
  background: rgba(0, 255, 204, 0.08);
}

/* 按钮通用规范 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  padding: 12px 24px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary-neon);
  color: #050805;
  border: 1px solid var(--primary-neon);
  box-shadow: 0 0 14px rgba(0, 255, 136, 0.35);
}

.btn-primary:hover {
  background-color: #33ff9f;
  box-shadow: 0 0 24px rgba(0, 255, 136, 0.65);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
}

.btn-secondary:hover {
  background-color: rgba(0, 255, 204, 0.12);
  box-shadow: 0 0 16px rgba(0, 255, 204, 0.4);
  transform: translateY(-1px);
}

.btn-blog {
  background-color: rgba(0, 255, 136, 0.08);
  color: var(--text-main);
  border: 1px dashed var(--border-neon);
}

.btn-blog:hover {
  background-color: rgba(0, 255, 136, 0.2);
  color: var(--primary-neon);
  box-shadow: 0 0 16px rgba(0, 255, 136, 0.3);
}

/* Hero 终端区域 */
.hero-section {
  padding: 50px 0 40px;
}

.terminal-window {
  background-color: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: 4px;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 255, 136, 0.08);
  overflow: hidden;
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #050805;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-dark);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.terminal-dots {
  display: flex;
  gap: 8px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.dot-red { background-color: #ff5f56; }
.dot-yellow { background-color: #ffbd2e; }
.dot-green { background-color: #27c93f; }

.terminal-body {
  padding: 32px 28px;
}

.terminal-boot-logs {
  background-color: var(--bg-code);
  border: 1px solid var(--border-dark);
  padding: 14px 18px;
  border-radius: 3px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.boot-line {
  margin-bottom: 4px;
}

.boot-ok {
  color: var(--primary-neon);
}

.boot-info {
  color: var(--accent-cyan);
}

.hero-wordmark {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--primary-neon);
  letter-spacing: 2px;
  margin: 12px 0 16px;
  line-height: 1.15;
  text-shadow: 0 0 15px rgba(0, 255, 136, 0.45);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-main);
  max-width: 820px;
  margin-bottom: 24px;
  line-height: 1.65;
}

.hero-subtitle span {
  color: var(--accent-cyan);
}

.hero-meta-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.badge {
  font-size: 0.8rem;
  padding: 4px 10px;
  background-color: rgba(0, 255, 136, 0.08);
  border: 1px solid var(--border-dark);
  color: var(--primary-neon);
  border-radius: 2px;
}

.badge-cyan {
  background-color: rgba(0, 255, 204, 0.08);
  border-color: rgba(0, 255, 204, 0.3);
  color: var(--accent-cyan);
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  padding-top: 8px;
}

/* 章节标题 */
.section-title-wrap {
  margin-bottom: 28px;
  text-align: left;
}

.section-label {
  font-size: 0.82rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 6px;
  display: block;
}

.section-title {
  font-size: 1.75rem;
  color: var(--primary-neon);
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* 核心优势卡片 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 20px;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: 3px;
  padding: 24px;
  transition: all 0.25s ease;
  position: relative;
}

.card:hover {
  border-color: var(--primary-neon);
  box-shadow: 0 4px 20px rgba(0, 255, 136, 0.15);
  transform: translateY(-2px);
}

.card-header-tag {
  font-size: 0.78rem;
  color: var(--accent-cyan);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-title {
  font-size: 1.2rem;
  color: var(--text-main);
  margin-bottom: 12px;
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.card-icon-ascii {
  font-size: 1.4rem;
  color: var(--primary-neon);
  margin-bottom: 10px;
  display: inline-block;
}

/* 流媒体与AI支持卡片 */
.streaming-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.media-pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.media-pill {
  font-size: 0.82rem;
  padding: 6px 12px;
  background-color: #050805;
  border: 1px solid var(--border-dark);
  color: var(--text-main);
  border-radius: 2px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.media-pill::before {
  content: "✔";
  color: var(--primary-neon);
  font-size: 0.75rem;
}

/* 节点状态表格 */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-dark);
  background-color: var(--bg-card);
  border-radius: 3px;
}

.terminal-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.88rem;
}

.terminal-table th {
  background-color: #050805;
  color: var(--accent-cyan);
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-dark);
  font-weight: 600;
  letter-spacing: 0.5px;
}

.terminal-table td {
  padding: 13px 18px;
  border-bottom: 1px solid rgba(27, 53, 30, 0.5);
  color: var(--text-main);
}

.terminal-table tr:hover td {
  background-color: rgba(0, 255, 136, 0.03);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: 2px;
  font-size: 0.75rem;
  font-weight: bold;
}

.status-online {
  background-color: rgba(0, 255, 136, 0.12);
  color: var(--primary-neon);
  border: 1px solid rgba(0, 255, 136, 0.4);
}

.status-dot {
  width: 7px;
  height: 7px;
  background-color: var(--primary-neon);
  border-radius: 50%;
  display: inline-block;
  animation: pulse-dot 1.4s infinite;
}

@keyframes pulse-dot {
  0% { opacity: 0.3; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.2); box-shadow: 0 0 6px var(--primary-neon); }
  100% { opacity: 0.3; transform: scale(0.9); }
}

/* 套餐价格代码块卡片 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.pricing-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-dark);
  border-radius: 3px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.25s ease;
}

.pricing-card:hover {
  border-color: var(--primary-neon);
  box-shadow: 0 6px 26px rgba(0, 255, 136, 0.18);
  transform: translateY(-3px);
}

.pricing-card.featured {
  border-color: var(--primary-neon);
  background-color: #0e1a10;
}

.pricing-ribbon {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 0.72rem;
  background-color: var(--primary-neon);
  color: #050805;
  padding: 2px 8px;
  font-weight: bold;
  border-radius: 2px;
}

.pricing-card-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-dark);
  background-color: #070c07;
}

.plan-title {
  font-size: 1.15rem;
  color: var(--primary-neon);
  margin-bottom: 8px;
}

.plan-price {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--text-main);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-currency {
  font-size: 1.1rem;
  color: var(--accent-cyan);
}

.price-cycle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.pricing-code-body {
  padding: 20px;
  font-size: 0.85rem;
  flex-grow: 1;
}

.code-spec-line {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px dashed rgba(27, 53, 30, 0.6);
}

.code-key {
  color: var(--text-muted);
}

.code-val {
  color: var(--text-main);
  font-weight: 600;
}

.code-val.highlight {
  color: var(--accent-cyan);
}

.pricing-card-action {
  padding: 20px;
  border-top: 1px solid var(--border-dark);
}

.pricing-card-action .btn {
  width: 100%;
}

/* 常见问题 (FAQ) */
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.faq-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-dark);
  padding: 20px;
  border-radius: 3px;
}

.faq-question {
  color: var(--accent-cyan);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.faq-answer {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.65;
}

/* 用户评价 */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.review-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-dark);
  padding: 20px;
  border-radius: 3px;
  position: relative;
}

.review-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.review-user {
  color: var(--primary-neon);
  font-weight: 600;
}

.review-rating {
  color: #ffbd2e;
}

.review-content {
  font-size: 0.87rem;
  color: var(--text-main);
  line-height: 1.6;
}

/* 页脚区域 */
.terminal-footer {
  background-color: #050805;
  border-top: 1px solid var(--border-dark);
  padding: 48px 0 32px;
  margin-top: 50px;
}

.footer-prompt-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--primary-neon);
  margin-bottom: 24px;
  padding: 12px 16px;
  background-color: #020402;
  border: 1px solid var(--border-dark);
  border-radius: 2px;
}

.cursor-blink {
  display: inline-block;
  width: 9px;
  height: 17px;
  background-color: var(--primary-neon);
  vertical-align: middle;
  animation: cursor-blink 0.9s infinite;
}

@keyframes cursor-blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.footer-links-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.footer-links-row a {
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.92rem;
  padding: 6px 12px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.footer-links-row a:hover {
  color: var(--primary-neon);
  border-color: var(--border-dark);
  background-color: rgba(0, 255, 136, 0.05);
}

.footer-copyright {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(27, 53, 30, 0.4);
  padding-top: 20px;
}

/* 文章页和通用内页样式 */
.article-header {
  padding: 40px 0 20px;
  border-bottom: 1px solid var(--border-dark);
  margin-bottom: 30px;
}

.article-title {
  font-size: 2rem;
  color: var(--primary-neon);
  margin-bottom: 12px;
  line-height: 1.3;
}

.article-meta {
  display: flex;
  gap: 16px;
  font-size: 0.84rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.article-body {
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text-main);
  max-width: 860px;
  margin: 0 auto;
}

.article-body h2 {
  font-size: 1.45rem;
  color: var(--accent-cyan);
  margin: 32px 0 16px;
  border-left: 3px solid var(--primary-neon);
  padding-left: 12px;
}

.article-body h3 {
  font-size: 1.18rem;
  color: var(--primary-neon);
  margin: 24px 0 12px;
}

.article-body p {
  margin-bottom: 18px;
  color: #cce7d0;
}

.article-body ul, .article-body ol {
  margin-bottom: 20px;
  padding-left: 24px;
}

.article-body li {
  margin-bottom: 8px;
  color: #cce7d0;
}

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

.article-body a:hover {
  color: var(--accent-cyan);
}

.article-body blockquote {
  background-color: var(--bg-card);
  border-left: 4px solid var(--primary-neon);
  padding: 16px 20px;
  margin: 20px 0;
  color: var(--text-muted);
}

/* 文章列表卡片 */
.article-list-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 32px 0;
}

.article-item-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-dark);
  padding: 24px;
  border-radius: 3px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.25s ease;
}

.article-item-card:hover {
  border-color: var(--primary-neon);
  box-shadow: 0 4px 20px rgba(0, 255, 136, 0.15);
  transform: translateY(-2px);
}

.article-item-title {
  font-size: 1.15rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

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

.article-item-title a:hover {
  color: var(--primary-neon);
}

.article-item-snippet {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

/* 响应式媒体查询 (针对手机端完美单栏适配) */
@media screen and (max-width: 900px) {
  .features-grid,
  .pricing-grid,
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media screen and (max-width: 768px) {
  html {
    font-size: 14px;
  }

  .nav-inner {
    flex-direction: column;
    height: auto;
    padding: 12px 0;
    gap: 12px;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
  }

  .hero-wordmark {
    font-size: 2rem;
  }

  .features-grid,
  .streaming-grid,
  .pricing-grid,
  .faq-grid,
  .reviews-grid,
  .article-list-grid {
    grid-template-columns: 1fr; /* 单栏显示 */
  }

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

  .hero-cta-group .btn {
    width: 100%;
    min-height: 48px; /* 适合手机手指触控 */
  }

  .footer-links-row {
    flex-direction: column;
    gap: 14px;
  }

  .terminal-body {
    padding: 20px 16px;
  }
}