/* ==========================================================================
   魔戒机场 (Mojie Network) - 独立风格原生样式表
   风格主题：魔幻赛博朋克风 (Magic Cyberpunk) / 紫蓝分割双色调
   特点：纯原生CSS、秒开加载、跑马灯 LED 循环边框、魔幻流光、完美无障碍与移动端响应式
   ========================================================================== */

:root {
  /* 核心主色调 (紫蓝魔幻) */
  --bg-deep: #0a0614;
  --bg-card: rgba(22, 14, 42, 0.75);
  --bg-card-hover: rgba(35, 20, 68, 0.85);
  --border-subtle: rgba(168, 85, 247, 0.25);
  --border-glow: rgba(0, 240, 255, 0.4);

  /* 霓虹主辅色 */
  --neon-purple: #a855f7;
  --neon-violet: #8b5cf6;
  --neon-cyan: #00f0ff;
  --neon-blue: #3b82f6;
  --neon-pink: #ec4899;

  /* 文字颜色 (对比度 >= 4.5:1) */
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-glow: #e0e7ff;

  /* 尺寸与圆角 */
  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* 阴影与光晕 */
  --shadow-neon-p: 0 0 25px rgba(168, 85, 247, 0.35);
  --shadow-neon-c: 0 0 25px rgba(0, 240, 255, 0.35);
}

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

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

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  background: 
    radial-gradient(circle at 15% 15%, rgba(139, 92, 246, 0.18) 0%, transparent 40%),
    radial-gradient(circle at 85% 30%, rgba(0, 240, 255, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(168, 85, 247, 0.12) 0%, transparent 50%),
    #0a0614;
}

/* 键盘跳过导航 */
.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--neon-cyan);
  color: #050510;
  font-weight: 700;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  z-index: 9999;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 20px;
}

/* 焦点样式 */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 4px;
}

/* 容器规范 */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* 头部导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(10, 6, 20, 0.8);
  border-bottom: 1px solid rgba(168, 85, 247, 0.2);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.brand-ring {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 3px solid var(--neon-cyan);
  box-shadow: 0 0 12px var(--neon-cyan), inset 0 0 8px var(--neon-purple);
  display: inline-block;
  animation: pulse-ring 3s infinite ease-in-out;
}

@keyframes pulse-ring {
  0%, 100% { transform: scale(1) rotate(0deg); border-color: var(--neon-cyan); }
  50% { transform: scale(1.08) rotate(180deg); border-color: var(--neon-purple); }
}

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

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s, text-shadow 0.2s;
  padding: 8px 4px;
}

.nav-link:hover, .nav-link.active {
  color: var(--neon-cyan);
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
}

.nav-badge {
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-cyan));
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-left: 6px;
  font-weight: 600;
}

/* ==========================================================================
   魔幻朋克 LED 跑马灯流光按钮 (单个LED环形跑动效果)
   ========================================================================== */
.led-cta-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  min-height: 44px;
  min-width: 44px;
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  text-decoration: none;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, rgba(26, 11, 46, 0.9), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(168, 85, 247, 0.4);
  cursor: pointer;
  overflow: hidden;
  z-index: 1;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  user-select: none;
}

/* 跑马灯单颗 LED 点旋转发光效果 */
.led-cta-btn::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(
    transparent 0deg,
    transparent 310deg,
    var(--neon-purple) 330deg,
    var(--neon-cyan) 350deg,
    #ffffff 360deg
  );
  animation: led-rotate 2.8s linear infinite;
  z-index: -2;
}

/* 按钮内部实心层（遮盖中心，露出边缘 LED 轨迹） */
.led-cta-btn::after {
  content: "";
  position: absolute;
  inset: 2px;
  background: linear-gradient(135deg, #1a0f35 0%, #0c182b 100%);
  border-radius: var(--radius-full);
  z-index: -1;
  transition: background 0.3s ease;
}

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

.led-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.5), 0 0 35px rgba(168, 85, 247, 0.4);
}

.led-cta-btn:hover::after {
  background: linear-gradient(135deg, #24144b 0%, #102340 100%);
}

.led-cta-btn.large {
  padding: 16px 36px;
  font-size: 1.15rem;
}

/* 魔烟粒子挂载点 */
.smoke-particle {
  position: fixed;
  pointer-events: none;
  border-radius: 50%;
  mix-blend-mode: screen;
  z-index: 99999;
  filter: blur(8px);
  opacity: 0.9;
  transform: translate(-50%, -50%);
  animation: smoke-drift 0.85s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

@keyframes smoke-drift {
  0% {
    opacity: 0.95;
    transform: translate(-50%, -50%) scale(0.3);
  }
  100% {
    opacity: 0;
    transform: translate(calc(-50% + var(--dx, 0px)), calc(-50% + var(--dy, -60px))) scale(2.4);
  }
}

/* ==========================================================================
   页面区块与网格
   ========================================================================== */
section {
  padding: 80px 0;
  scroll-margin-top: 80px;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(168, 85, 247, 0.15);
  border: 1px solid rgba(168, 85, 247, 0.4);
  color: var(--neon-cyan);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #ffffff 30%, var(--neon-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  max-width: 650px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* 主视觉 Hero 区域 */
.hero-section {
  padding: 100px 0 80px;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 6px 18px;
  border-radius: var(--radius-full);
  color: var(--neon-cyan);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #ffffff 20%, var(--neon-cyan) 60%, var(--neon-purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 40px rgba(168, 85, 247, 0.3);
}

.hero-subtitle {
  font-size: 1.35rem;
  color: var(--text-glow);
  font-weight: 600;
  margin-bottom: 16px;
}

.hero-intro {
  max-width: 780px;
  margin: 0 auto 36px;
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--neon-cyan);
  display: block;
}

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

/* 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-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  position: relative;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--neon-cyan);
  box-shadow: 0 10px 30px rgba(0, 240, 255, 0.2);
}

.feature-icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.2), rgba(0, 240, 255, 0.2));
  border: 1px solid rgba(0, 240, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 24px;
}

.feature-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.feature-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 流媒体与 AI 支持图卡 */
.media-ai-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

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

.support-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.support-badge-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.support-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.tech-tag {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(168, 85, 247, 0.3);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--text-glow);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* 套餐价格对比表 */
.pricing-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  margin-bottom: 32px;
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.pricing-table caption {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--neon-cyan);
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.pricing-table th, .pricing-table td {
  padding: 18px 24px;
  border-bottom: 1px solid rgba(168, 85, 247, 0.15);
}

.pricing-table th {
  background: rgba(139, 92, 246, 0.12);
  color: var(--text-glow);
  font-weight: 700;
  font-size: 0.95rem;
}

.pricing-table tr:hover td {
  background: rgba(168, 85, 247, 0.08);
}

.plan-price {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--neon-cyan);
}

.plan-highlight {
  background: rgba(0, 240, 255, 0.08) !important;
}

.badge-hot {
  background: linear-gradient(135deg, #ef4444, #f97316);
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
  margin-left: 6px;
  font-weight: 600;
}

/* 用户评价 */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.review-stars {
  color: #fbbf24;
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.review-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 20px;
  font-style: italic;
  line-height: 1.6;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar-circle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--neon-purple), var(--neon-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
}

/* FAQ 常见问题解答 (details/summary 默认展开) */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item[open] {
  border-color: rgba(0, 240, 255, 0.4);
}

.faq-question {
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.faq-question::after {
  content: "▾";
  font-size: 1.2rem;
  color: var(--neon-cyan);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-question::after {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px 20px 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  border-top: 1px solid rgba(168, 85, 247, 0.1);
}

/* 页脚 Footer (严格只保留四个链接打开新页面展示) */
.site-footer {
  background: #06030b;
  border-top: 1px solid rgba(168, 85, 247, 0.25);
  padding: 48px 0 32px;
  text-align: center;
}

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

.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  transition: color 0.2s ease, text-shadow 0.2s ease;
}

.footer-nav a:hover {
  color: var(--neon-cyan);
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.7);
}

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

/* ==========================================================================
   知识科普文章列表与内页排版
   ========================================================================== */
.article-header {
  padding: 60px 0 40px;
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 40px;
}

.article-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #ffffff, var(--neon-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.article-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  display: flex;
  justify-content: center;
  gap: 20px;
}

.article-body {
  max-width: 820px;
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.85;
}

.article-body h2 {
  font-size: 1.5rem;
  color: #fff;
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}

.article-body h3 {
  font-size: 1.25rem;
  color: var(--neon-cyan);
  margin: 28px 0 12px;
}

.article-body p {
  margin-bottom: 20px;
}

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

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

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

.article-body a:hover {
  color: #fff;
  text-shadow: 0 0 8px var(--neon-cyan);
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(30, 15, 60, 0.8), rgba(15, 23, 42, 0.8));
  border: 1px solid var(--neon-cyan);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  margin: 48px 0;
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.15);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.2s, border-color 0.2s;
  text-decoration: none;
}

.article-card:hover {
  transform: translateY(-4px);
  border-color: var(--neon-cyan);
  box-shadow: 0 8px 24px rgba(0, 240, 255, 0.15);
}

.article-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.4;
}

.article-card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.article-card-footer {
  font-size: 0.85rem;
  color: var(--neon-cyan);
  font-weight: 600;
}

/* ==========================================================================
   移动端响应式 (@media)
   ========================================================================== */
@media (max-width: 992px) {
  .features-grid, .articles-grid, .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .media-ai-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .features-grid, .articles-grid, .reviews-grid {
    grid-template-columns: 1fr;
  }
  .nav-container {
    flex-direction: column;
    height: auto;
    padding: 16px 0;
    gap: 12px;
  }
  .nav-menu {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-subtitle {
    font-size: 1.1rem;
  }
  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 16px;
  }
  .stat-num {
    font-size: 1.5rem;
  }
  .led-cta-btn {
    width: 100%;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
}

@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;
  }
}