/* ==========================================================================
   云翼网络 (yunyiwangluo.sbs) 官方原生样式表
   零外部依赖 | 纯原生 CSS3 | 极致秒开与 GPU 硬件加速渲染
   ========================================================================== */

:root {
  --bg-primary: #070a12;
  --bg-secondary: #0d1322;
  --bg-card: rgba(16, 24, 42, 0.75);
  --bg-card-hover: rgba(24, 35, 60, 0.88);
  --border-color: rgba(56, 189, 248, 0.16);
  --border-glow: rgba(0, 245, 255, 0.45);
  
  --accent-cyan: #00f5ff;
  --accent-blue: #0088ff;
  --accent-indigo: #6366f1;
  --accent-purple: #a855f7;
  --accent-ice-purple: #c084fc;
  --accent-ice-light: #e9d5ff;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  
  --text-main: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-highlight: #38bdf8;

  --gradient-brand: linear-gradient(135deg, #00f5ff 0%, #0088ff 50%, #6366f1 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(0, 245, 255, 0.18), transparent 70%);
  --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6), 0 0 1px 1px rgba(255, 255, 255, 0.05);
  --card-shadow-hover: 0 20px 40px -10px rgba(0, 136, 255, 0.25), 0 0 25px rgba(0, 245, 255, 0.2);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --container-max: 1320px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 全局重置与基础规范 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

body {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(0, 136, 255, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 25%, rgba(168, 85, 247, 0.1) 0%, transparent 45%),
    radial-gradient(circle at 50% 70%, rgba(0, 245, 255, 0.08) 0%, transparent 50%);
  background-attachment: fixed;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* 动态背景 Canvas 容器 */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.75;
}

.site-wrapper {
  position: relative;
  z-index: 1;
  width: 100%;
}

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

/* 顶部导航栏 Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 76px;
  z-index: 100;
  background: rgba(7, 10, 18, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  transition: all var(--transition-fast);
}

.site-header.scrolled {
  background: rgba(7, 10, 18, 0.94);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
  border-bottom-color: rgba(0, 245, 255, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* 左侧 Logo 规范 */
.logo-box {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.site-logo {
  height: 48px;
  width: auto;
  transition: transform var(--transition-fast);
}

.site-logo:hover {
  transform: scale(1.02);
}

/* 导航菜单 */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-brand);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: #ffffff;
}

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

/* 右侧 CTA 按钮区 */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* 汉堡菜单按钮 (移动端) */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 8px;
}

.mobile-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-main);
  transition: var(--transition-fast);
}

/* 统一按钮样式系统 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-align: center;
  white-space: nowrap;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #E9D5FF 0%, #C084FC 45%, #9333EA 85%, #7C3AED 100%);
  color: #1a0833;
  font-weight: 800;
  box-shadow: 0 4px 20px rgba(168, 85, 247, 0.45), 0 0 15px rgba(192, 132, 252, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, #F3E8FF 0%, #D8B4FE 45%, #C084FC 85%, #9333EA 100%);
  box-shadow: 0 8px 30px rgba(168, 85, 247, 0.7), 0 0 25px rgba(192, 132, 252, 0.55);
  color: #0d041a;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  border: 1px solid rgba(192, 132, 252, 0.35);
}

.btn-outline:hover {
  background: rgba(192, 132, 252, 0.12);
  border-color: #C084FC;
  color: #D8B4FE;
  transform: translateY(-2px);
}

.btn-lg {
  padding: 14px 34px;
  font-size: 1.08rem;
  border-radius: var(--radius-full);
}

.btn-block {
  width: 100%;
}

/* 英雄区 Hero Section */
.hero-section {
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 18px;
  border-radius: var(--radius-full);
  background: rgba(0, 245, 255, 0.08);
  border: 1px solid rgba(0, 245, 255, 0.28);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 24px;
  box-shadow: 0 0 15px rgba(0, 245, 255, 0.15);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 245, 255, 0.7); }
  70% { transform: scale(1.15); box-shadow: 0 0 0 9px rgba(0, 245, 255, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 245, 255, 0); }
}

.hero-title {
  font-size: clamp(1.75rem, 3.2vw, 3.05rem);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -0.015em;
  margin-bottom: 22px;
  color: #ffffff;
  text-wrap: balance;
}

.hero-title-top,
.hero-title-bottom {
  display: block;
}

.title-nowrap {
  display: inline-block;
  white-space: nowrap;
}

.text-gradient {
  background: linear-gradient(135deg, #F5EEFF 0%, #E9D5FF 25%, #C084FC 60%, #A855F7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 18px rgba(192, 132, 252, 0.45));
}

.hero-subtitle {
  font-size: clamp(1.02rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 860px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-keywords-highlight {
  color: #e2e8f0;
  font-weight: 600;
  border-bottom: 1px dashed rgba(0, 245, 255, 0.5);
}

.hero-cta-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

/* 核心指标统计 */
.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 1040px;
  margin: 0 auto;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  backdrop-filter: blur(12px);
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
}

.stat-value {
  display: block;
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  margin-bottom: 4px;
}

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

/* 通用 Section 规范 */
.section {
  padding: 85px 0;
  position: relative;
}

.section-alt {
  background: rgba(13, 19, 34, 0.45);
}

.section-header {
  text-align: center;
  max-width: 820px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent-cyan);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.68;
}

/* 核心特性矩阵 Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  backdrop-filter: blur(12px);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.feature-box:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--card-shadow-hover);
  background: var(--bg-card-hover);
}

.feature-icon-badge {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: rgba(0, 245, 255, 0.1);
  border: 1px solid rgba(0, 245, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.feature-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.feature-content {
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ==========================================================================
   价格卡片区域 (PRICING SECTION) - 严格同排规则 (所有价格要同排)
   ========================================================================== */
.pricing-wrapper {
  width: 100%;
  position: relative;
}

/* 桌面端5个套餐严格同排显示 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
  align-items: stretch;
}

.pricing-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px 18px 24px;
  backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-glow);
  box-shadow: var(--card-shadow-hover);
  background: var(--bg-card-hover);
}

/* 爆款推荐卡片高亮 (冰紫色专属风格) */
.pricing-card.featured {
  background: linear-gradient(180deg, rgba(35, 18, 64, 0.9) 0%, rgba(19, 11, 38, 0.96) 100%);
  border: 2px solid #C084FC;
  box-shadow: 0 10px 35px rgba(168, 85, 247, 0.35), 0 0 22px rgba(192, 132, 252, 0.25);
  transform: translateY(-4px);
}

.pricing-card.featured:hover {
  transform: translateY(-12px);
  box-shadow: 0 18px 50px rgba(168, 85, 247, 0.6), 0 0 30px rgba(192, 132, 252, 0.45);
  border-color: #E9D5FF;
}

.pricing-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #F3E8FF 0%, #C084FC 45%, #9333EA 100%);
  color: #17072e;
  font-size: 0.76rem;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: var(--radius-full);
  box-shadow: 0 2px 14px rgba(168, 85, 247, 0.55);
  white-space: nowrap;
}

.card-top {
  margin-bottom: 18px;
}

.plan-category {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-highlight);
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 6px;
}

.plan-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.45;
  min-height: 38px;
}

.price-box {
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 18px;
  text-align: center;
}

.price-currency {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-cyan);
  vertical-align: top;
}

.price-num {
  font-size: 2.15rem;
  font-weight: 900;
  color: #ffffff;
  font-family: var(--font-mono);
  letter-spacing: -1px;
}

.price-period {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.price-discount-tag {
  font-size: 0.74rem;
  color: var(--accent-emerald);
  margin-top: 4px;
  font-weight: 600;
}

.plan-specs {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 22px;
  flex-grow: 1;
}

.spec-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.spec-icon {
  color: var(--accent-cyan);
  font-weight: 800;
  flex-shrink: 0;
  font-size: 0.9rem;
}

.spec-item strong {
  color: #ffffff;
}

.card-cta {
  margin-top: auto;
}

/* 实测与晚高峰对比 Speed Test & Peak Hours Comparison */
.speed-test-section {
  position: relative;
}

.speed-box-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  backdrop-filter: blur(14px);
}

.comparison-table-wrapper {
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.comparison-table th, 
.comparison-table td {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.comparison-table th {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
}

.comparison-table td.col-yunyi {
  color: var(--accent-cyan);
  font-weight: 700;
  background: rgba(0, 245, 255, 0.05);
  border-radius: var(--radius-sm);
}

.speed-metrics-card {
  background: rgba(10, 16, 30, 0.85);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.live-speed-display {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 16px 0;
}

.live-speed-num {
  font-size: 3.2rem;
  font-weight: 900;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  letter-spacing: -2px;
}

.live-speed-unit {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 700;
}

.speed-bar-wrap {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 14px;
}

.speed-bar-fill {
  width: 96%;
  height: 100%;
  background: linear-gradient(135deg, #00f5ff 0%, #0088ff 50%, #6366f1 100%);
  border-radius: var(--radius-full);
}

.speed-metrics-card .btn-primary {
  background: linear-gradient(135deg, #00f5ff 0%, #0088ff 50%, #6366f1 100%);
  color: #050811;
  font-weight: 700;
  box-shadow: 0 4px 18px rgba(0, 245, 255, 0.35);
}

.speed-metrics-card .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(0, 245, 255, 0.55);
  color: #000;
}

/* 全球节点矩阵 Node Grid */
.nodes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.node-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: all var(--transition-fast);
}

.node-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
}

.node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.node-name {
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.node-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-emerald);
  box-shadow: 0 0 8px var(--accent-emerald);
}

.node-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-top: 8px;
}

.node-meta .ping {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-weight: 600;
}

.node-tags {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.node-tag {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* 客户端导入指引 Client Apps */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.client-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  text-align: center;
  transition: all var(--transition-fast);
}

.client-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
}

.client-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.client-name {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.client-os {
  font-size: 0.8rem;
  color: var(--accent-cyan);
  margin-bottom: 10px;
}

.client-desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* 专栏文章推荐专区 Article Cards Section */
.articles-preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  backdrop-filter: blur(12px);
}

.article-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: var(--card-shadow-hover);
}

.article-category {
  font-size: 0.75rem;
  color: var(--accent-cyan);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.article-title {
  font-size: 1.12rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.45;
  margin-bottom: 12px;
  transition: color var(--transition-fast);
}

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

.article-excerpt {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 14px;
}

.article-link-btn {
  color: var(--accent-cyan);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* 用户真实评价 Testimonials Section */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-stars {
  color: #fbbf24;
  margin-bottom: 12px;
  font-size: 0.95rem;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 18px;
  font-style: italic;
}

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

.reviewer-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(0, 245, 255, 0.15);
  border: 1px solid rgba(0, 245, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--accent-cyan);
  font-size: 1rem;
}

.reviewer-name {
  font-size: 0.92rem;
  font-weight: 700;
  color: #ffffff;
}

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

/* 常见问题 FAQ Section */
.faq-container {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.faq-item:hover {
  border-color: rgba(56, 189, 248, 0.35);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
}

.faq-icon {
  font-size: 1.2rem;
  color: var(--accent-cyan);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px 20px;
  font-size: 0.94rem;
  color: var(--text-secondary);
  line-height: 1.7;
  display: none;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 16px;
}

.faq-item.active .faq-answer {
  display: block;
}

/* 高权重权威外链 External Backlinks Section */
.backlinks-box {
  background: rgba(13, 19, 34, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-top: 50px;
}

.backlinks-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.backlinks-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
}

.backlink-item a {
  font-size: 0.84rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.backlink-item a:hover {
  color: var(--accent-cyan);
  text-decoration: underline;
}

/* 底部 CTA 呼唤行动横幅 */
.cta-banner-section {
  padding: 70px 0;
}

.cta-banner-inner {
  background: linear-gradient(135deg, rgba(0, 136, 255, 0.22) 0%, rgba(168, 85, 247, 0.18) 100%);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 55px 40px;
  text-align: center;
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.cta-banner-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 900;
  margin-bottom: 16px;
}

.cta-banner-desc {
  font-size: 1.08rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 30px;
}

/* 页脚 Footer */
.site-footer {
  background: #04070d;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 70px 0 35px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-top: 14px;
  line-height: 1.6;
  max-width: 320px;
}

.footer-heading {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 18px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 25px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  flex-wrap: wrap;
  gap: 16px;
}

/* ==========================================================================
   响应式媒体查询 (RESPONSIVE)
   保证移动端体验完好，同时桌面端严格保持所有价格同排！
   ========================================================================== */

@media (max-width: 1280px) {
  .pricing-grid {
    grid-template-columns: repeat(5, minmax(180px, 1fr));
    gap: 12px;
  }
  .pricing-card {
    padding: 24px 14px 20px;
  }
  .price-num {
    font-size: 1.85rem;
  }
}

@media (max-width: 1100px) {
  /* 屏幕稍小时启用平滑横向滚动，确保 5 个价格依然保持同排视觉对齐 */
  .pricing-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 16px;
    padding-bottom: 16px;
    -webkit-overflow-scrolling: touch;
  }
  .pricing-card {
    flex: 0 0 250px;
    scroll-snap-align: start;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .articles-preview-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .speed-box-container {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 76px;
    left: 0;
    width: 100%;
    background: rgba(7, 10, 18, 0.98);
    flex-direction: column;
    padding: 24px;
    gap: 18px;
    border-bottom: 1px solid var(--border-color);
    display: none;
  }
  
  .nav-menu.active {
    display: flex;
  }

  .mobile-toggle {
    display: flex;
  }

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

  .articles-preview-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .hero-stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* =========================================================
   动态治愈萌猫宇宙背景系统 (8大绝美幼喵超清梦幻浮岛 · 可爱风)
   ========================================================= */
.dynamic-cat-universe {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

/* 背景环境梦幻极光柔晕 (樱花粉、梦幻紫与薄荷青柔和交织) */
.cat-ambient-glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(150px);
  will-change: transform, opacity;
}

.cat-ambient-1 {
  width: 520px;
  height: 520px;
  top: -80px;
  left: -80px;
  background: radial-gradient(circle, rgba(244, 114, 182, 0.22), transparent 70%);
  animation: ambientAura1 20s infinite ease-in-out alternate;
}

.cat-ambient-2 {
  width: 580px;
  height: 580px;
  bottom: -100px;
  right: -100px;
  background: radial-gradient(circle, rgba(192, 132, 252, 0.22), transparent 70%);
  animation: ambientAura2 24s infinite ease-in-out alternate;
}

@keyframes ambientAura1 {
  0% { transform: scale(1) translate(0, 0); opacity: 0.18; }
  50% { transform: scale(1.35) translate(60px, 40px); opacity: 0.28; }
  100% { transform: scale(0.92) translate(-30px, 20px); opacity: 0.16; }
}

@keyframes ambientAura2 {
  0% { transform: scale(1) translate(0, 0); opacity: 0.16; }
  50% { transform: scale(1.3) translate(-50px, -40px); opacity: 0.26; }
  100% { transform: scale(0.9) translate(30px, -20px); opacity: 0.14; }
}

/* 萌猫浮动梦幻气泡本体 */
.cat-orb {
  position: absolute;
  pointer-events: auto;
  cursor: pointer;
  border-radius: 50%;
  padding: 3.5px;
  background: linear-gradient(135deg, rgba(244, 114, 182, 0.85), rgba(192, 132, 252, 0.85), rgba(56, 189, 248, 0.75));
  box-shadow: 0 0 25px rgba(244, 114, 182, 0.4), 0 0 50px rgba(192, 132, 252, 0.3), 0 0 80px rgba(56, 189, 248, 0.2);
  transition: transform 0.45s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease, opacity 0.4s ease;
  will-change: transform;
  user-select: none;
  -webkit-user-select: none;
}

/* 萌萌猫耳朵装饰 (可爱风格关键特征) */
.cat-orb::before,
.cat-orb::after {
  content: '';
  position: absolute;
  top: -11px;
  width: 22px;
  height: 22px;
  background: linear-gradient(135deg, #F472B6, #C084FC);
  border-radius: 4px 18px 4px 14px;
  z-index: -1;
  box-shadow: 0 -2px 10px rgba(244, 114, 182, 0.5);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.cat-orb::before {
  left: 16px;
  transform: rotate(-25deg);
}

.cat-orb::after {
  right: 16px;
  transform: rotate(65deg) scaleX(-1);
}

/* 鼠标悬浮：猫耳欢快抖动 + 气泡Q弹放大 */
.cat-orb:hover {
  transform: scale(1.22) !important;
  box-shadow: 0 0 35px rgba(244, 114, 182, 0.95), 0 0 70px rgba(192, 132, 252, 0.8), 0 0 110px rgba(56, 189, 248, 0.5);
  z-index: 10;
}

.cat-orb:hover::before {
  transform: rotate(-35deg) scale(1.2) translateY(-3px);
}

.cat-orb:hover::after {
  transform: rotate(75deg) scaleX(-1) scale(1.2) translateY(-3px);
}

.cat-orb-inner {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  background: #080c14;
}

.cat-orb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 25%;
  border-radius: 50%;
  filter: contrast(1.05) saturate(1.1) brightness(1.03);
  transition: transform 0.5s ease, filter 0.5s ease;
  display: block;
}

.cat-orb:hover img {
  transform: scale(1.1);
  filter: contrast(1.1) saturate(1.18) brightness(1.08);
}

/* 梦幻水晶球半透明弧形反光 (Soap Bubble Sheen) */
.cat-orb-sheen {
  position: absolute;
  top: 6%;
  left: 10%;
  width: 44%;
  height: 26%;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.65), rgba(255, 255, 255, 0));
  transform: rotate(-25deg);
  pointer-events: none;
  z-index: 2;
}

/* 浮动猫咪柔和微光辉光 */
.cat-orb-glow {
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.5), transparent 70%);
  pointer-events: none;
}

/* 治愈系标签提示：品种与称号 */
.cat-tag {
  position: absolute;
  bottom: -28px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(15, 23, 42, 0.94);
  color: #FFF1F2;
  border: 1px solid rgba(244, 114, 182, 0.6);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.7), 0 0 10px rgba(244, 114, 182, 0.3);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}

.cat-orb:hover .cat-tag {
  opacity: 1;
  transform: translateX(-50%) translateY(4px);
}

/* 8只绝美萌猫的具体定位与微晃动动画 */
.cat-orb-1 {
  width: 142px;
  height: 142px;
  top: 11%;
  left: 3.5%;
  opacity: 0.88;
  animation: catFloat1 18s ease-in-out infinite alternate;
}

.cat-orb-2 {
  width: 124px;
  height: 124px;
  top: 46%;
  left: 2%;
  opacity: 0.84;
  animation: catFloat2 22s ease-in-out infinite alternate;
}

.cat-orb-3 {
  width: 150px;
  height: 150px;
  top: 15%;
  right: 3.5%;
  opacity: 0.90;
  animation: catFloat3 20s ease-in-out infinite alternate;
}

.cat-orb-4 {
  width: 138px;
  height: 138px;
  top: 55%;
  right: 2.5%;
  opacity: 0.86;
  animation: catFloat4 17s ease-in-out infinite alternate;
}

.cat-orb-5 {
  width: 116px;
  height: 116px;
  top: 80%;
  left: 5%;
  opacity: 0.82;
  animation: catFloat5 25s ease-in-out infinite alternate;
}

.cat-orb-6 {
  width: 120px;
  height: 120px;
  top: 32%;
  left: 17%;
  opacity: 0.74;
  animation: catFloat6 23s ease-in-out infinite alternate;
}

.cat-orb-7 {
  width: 130px;
  height: 130px;
  top: 81%;
  right: 8%;
  opacity: 0.86;
  animation: catFloat7 19s ease-in-out infinite alternate;
}

.cat-orb-8 {
  width: 116px;
  height: 116px;
  top: 7%;
  right: 23%;
  opacity: 0.76;
  animation: catFloat8 21s ease-in-out infinite alternate;
}

/* 8套独立流光浮动轨迹关键帧 */
@keyframes catFloat1 {
  0% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(22px, -26px) rotate(4deg); }
  100% { transform: translate(-16px, 18px) rotate(-3deg); }
}

@keyframes catFloat2 {
  0% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-18px, 30px) rotate(-4deg); }
  100% { transform: translate(14px, -20px) rotate(3deg); }
}

@keyframes catFloat3 {
  0% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-24px, -20px) rotate(-3deg); }
  100% { transform: translate(18px, 24px) rotate(4deg); }
}

@keyframes catFloat4 {
  0% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(16px, 24px) rotate(4deg); }
  100% { transform: translate(-20px, -18px) rotate(-2deg); }
}

@keyframes catFloat5 {
  0% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(22px, -20px) rotate(-3deg); }
  100% { transform: translate(-14px, 22px) rotate(3deg); }
}

@keyframes catFloat6 {
  0% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-16px, 26px) rotate(3deg); }
  100% { transform: translate(18px, -16px) rotate(-4deg); }
}

@keyframes catFloat7 {
  0% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(16px, -24px) rotate(-2deg); }
  100% { transform: translate(-22px, 16px) rotate(4deg); }
}

@keyframes catFloat8 {
  0% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-20px, 20px) rotate(4deg); }
  100% { transform: translate(16px, -26px) rotate(-3deg); }
}

/* 点击猫咪喷射萌爪爱心流星微粒动画 */
.cat-burst-particle {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  font-size: 1.6rem;
  user-select: none;
  animation: burstFloat 1.25s cubic-bezier(0.18, 0.89, 0.32, 1.28) forwards;
}

@keyframes burstFloat {
  0% {
    opacity: 1;
    transform: translate(0, 0) scale(0.5);
  }
  50% {
    opacity: 0.95;
    transform: translate(var(--dx), var(--dy)) scale(1.35);
  }
  100% {
    opacity: 0;
    transform: translate(calc(var(--dx) * 1.5), calc(var(--dy) - 60px)) scale(0.85);
  }
}

/* 底部悬浮萌猫画质图鉴入口胶囊 (可爱治愈粉紫渐变) */
.cat-floating-pill {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 30px;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(244, 114, 182, 0.5);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.55), 0 0 20px rgba(244, 114, 182, 0.3);
  color: #FFF1F2;
  font-size: 0.84rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.cat-floating-pill:hover {
  transform: translateY(-2px) scale(1.03);
  background: rgba(28, 32, 54, 0.96);
  border-color: #F472B6;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 25px rgba(244, 114, 182, 0.5);
  color: #FBCFE8;
}

.cat-floating-pill .pill-paw {
  font-size: 1.15rem;
  animation: pawWiggle 2s infinite ease-in-out;
}

@keyframes pawWiggle {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(-15deg); }
  75% { transform: rotate(15deg); }
}

/* =========================================================
   萌猫超清美学画质展示模态框 (Cat High-Res Showcase Modal)
   ========================================================= */
.cat-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(4, 7, 13, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.cat-modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.cat-modal-card {
  position: relative;
  width: 100%;
  max-width: 680px;
  background: linear-gradient(135deg, rgba(24, 25, 45, 0.96), rgba(13, 14, 26, 0.98));
  border-radius: 26px;
  border: 1px solid rgba(244, 114, 182, 0.45);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.85), 0 0 45px rgba(244, 114, 182, 0.35);
  overflow: hidden;
  transform: scale(0.92) translateY(20px);
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cat-modal-backdrop.active .cat-modal-card {
  transform: scale(1) translateY(0);
}

.cat-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 10;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.cat-modal-close:hover {
  background: rgba(244, 114, 182, 0.8);
  transform: rotate(90deg);
}

.cat-modal-img-wrap {
  position: relative;
  width: 100%;
  height: 360px;
  background: #050811;
  overflow: hidden;
}

.cat-modal-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.cat-modal-img-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13, 14, 26, 1) 0%, rgba(13, 14, 26, 0) 50%);
  pointer-events: none;
}

.cat-modal-body {
  padding: 24px 28px 28px;
}

.cat-modal-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 10px;
}

.cat-modal-title {
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, #FFF1F2, #F472B6, #C084FC);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.cat-modal-badge {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 12px;
  background: rgba(244, 114, 182, 0.15);
  border: 1px solid rgba(244, 114, 182, 0.5);
  color: #FBCFE8;
  font-weight: 700;
}

.cat-modal-desc {
  font-size: 0.92rem;
  color: #CBD5E1;
  line-height: 1.65;
  margin-bottom: 20px;
}

.cat-modal-thumbs-label {
  font-size: 0.75rem;
  color: #94A3B8;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.cat-modal-thumbs {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
}

.cat-thumb-item {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 12px;
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  background: #080c14;
}

.cat-thumb-item.active {
  border-color: #F472B6;
  box-shadow: 0 0 14px rgba(244, 114, 182, 0.8);
  transform: scale(1.1);
}

.cat-thumb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 响应式适配屏幕 */
@media (max-width: 1024px) {
  .cat-orb-1 { width: 100px; height: 100px; top: 10%; left: 2%; }
  .cat-orb-2 { width: 90px; height: 90px; top: 48%; left: 1%; }
  .cat-orb-3 { width: 105px; height: 105px; top: 15%; right: 2%; }
  .cat-orb-4 { width: 95px; height: 95px; top: 58%; right: 1.5%; }
  .cat-orb-5 { width: 85px; height: 85px; top: 82%; left: 3%; }
  .cat-orb-6 { display: none; }
  .cat-orb-7 { width: 95px; height: 95px; top: 84%; right: 4%; }
  .cat-orb-8 { display: none; }
}

@media (max-width: 768px) {
  .cat-orb-1 { width: 72px; height: 72px; top: 8%; left: 2%; opacity: 0.75; }
  .cat-orb-2 { width: 68px; height: 68px; top: 42%; left: 1%; opacity: 0.70; }
  .cat-orb-3 { width: 75px; height: 75px; top: 12%; right: 2%; opacity: 0.75; }
  .cat-orb-4 { width: 70px; height: 70px; top: 52%; right: 1.5%; opacity: 0.70; }
  .cat-orb-5 { width: 64px; height: 64px; top: 86%; left: 2%; opacity: 0.65; }
  .cat-orb-7 { width: 68px; height: 68px; top: 88%; right: 2%; opacity: 0.68; }
  .cat-floating-pill {
    bottom: 16px;
    left: 16px;
    padding: 6px 14px;
    font-size: 0.76rem;
  }
  .cat-modal-img-wrap { height: 260px; }
  .cat-modal-body { padding: 18px 20px 22px; }
}