/* ==========================================================================
   赔钱机场 - 矩阵脉冲 (Matrix Pulse) 极速样式表
   无外部库依赖，纯原生 CSS，移动端优先，高质感赛博极简美学
   ========================================================================== */

:root {
  --bg-primary: #07090e;
  --bg-secondary: #0d121d;
  --bg-card: rgba(16, 23, 38, 0.75);
  --bg-card-hover: rgba(22, 33, 54, 0.9);
  
  /* 矩阵脉冲核心色彩 */
  --pulse-neon: #00ff66;
  --pulse-glow: rgba(0, 255, 102, 0.35);
  --pulse-cyan: #00f0ff;
  --pulse-dim: rgba(0, 255, 102, 0.12);
  --pulse-border: rgba(0, 255, 102, 0.25);
  
  --text-main: #f0f6fc;
  --text-sub: #8b949e;
  --text-muted: #484f58;
  
  --border-light: rgba(255, 255, 255, 0.08);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  
  --nav-height: 70px;
  --container-max: 1180px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(0, 255, 102, 0.08) 0%, transparent 60%),
    linear-gradient(rgba(0, 255, 102, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 102, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 40px 40px, 40px 40px;
  background-position: 0 0, 0 0, 0 0;
  min-height: 100vh;
}

/* 顶部流光背景粒子效果（CSS模拟） */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #00f0ff, #00ff66, #00f0ff);
  background-size: 200% 100%;
  animation: pulseLine 4s linear infinite;
  z-index: 9999;
}

@keyframes pulseLine {
  0% { background-position: 0% 0%; }
  100% { background-position: 200% 0%; }
}

/* 容器定义 */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* 章节通用配置 */
.page-section {
  padding: 85px 0;
  position: relative;
  scroll-margin-top: calc(var(--nav-height) + 10px);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--pulse-dim);
  border: 1px solid var(--pulse-border);
  color: var(--pulse-neon);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
  box-shadow: 0 0 16px rgba(0, 255, 102, 0.15);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--pulse-neon);
  box-shadow: 0 0 8px var(--pulse-neon);
  animation: badgeBlink 1.8s infinite ease-in-out;
}

@keyframes badgeBlink {
  0%, 100% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.2); }
}

.section-header {
  text-align: center;
  margin-bottom: 52px;
}

.section-title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-main);
  margin-bottom: 12px;
}

.section-title .glow-text {
  color: var(--pulse-neon);
  text-shadow: 0 0 20px rgba(0, 255, 102, 0.45);
}

.section-desc {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 640px;
  margin: 0 auto;
}

/* ==========================================================================
   导航条 Header
   ========================================================================== */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: rgba(7, 9, 14, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  display: flex;
  align-items: center;
}

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

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  cursor: pointer;
  background: none;
  border: none;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.brand-logo:hover {
  background: rgba(0, 255, 102, 0.08);
}

.brand-logo:active {
  transform: scale(0.96);
}

.logo-symbol {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, rgba(0, 255, 102, 0.2), rgba(0, 240, 255, 0.1));
  border: 1px solid var(--pulse-neon);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(0, 255, 102, 0.35);
  position: relative;
  transition: var(--transition);
}

.brand-logo:hover .logo-symbol {
  transform: rotate(5deg) scale(1.06);
  box-shadow: 0 0 22px rgba(0, 255, 102, 0.6);
}

.logo-symbol svg {
  width: 20px;
  height: 20px;
  fill: var(--pulse-neon);
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-tag {
  font-size: 11px;
  font-weight: 700;
  background: var(--pulse-neon);
  color: #000;
  padding: 1px 6px;
  border-radius: 4px;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-link {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  padding: 8px 12px;
}

.nav-link:hover {
  color: var(--pulse-neon);
}

/* ==========================================================================
   按钮样式规范 (严禁 nofollow，强制 target="_blank")
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 700;
  padding: 12px 26px;
  min-height: 48px;
  border-radius: 10px;
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: 0.3px;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #00ff66 0%, #00d655 100%);
  color: #050b07;
  box-shadow: 0 0 25px rgba(0, 255, 102, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.4);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #26ff7b 0%, #00ff66 100%);
  box-shadow: 0 0 35px rgba(0, 255, 102, 0.65);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 15px rgba(0, 255, 102, 0.4);
}

.btn-recommend {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.15) 0%, rgba(0, 255, 102, 0.15) 100%);
  color: #00f0ff;
  border: 1px solid rgba(0, 240, 255, 0.5);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.25), inset 0 1px 1px rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.btn-recommend:hover {
  background: linear-gradient(135deg, rgba(0, 240, 255, 0.28) 0%, rgba(0, 255, 102, 0.28) 100%);
  border-color: #00f0ff;
  color: #ffffff;
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.55);
  transform: translateY(-2px);
}

.btn-recommend:active {
  transform: translateY(0);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  border: 1px solid var(--border-light);
}

.btn-ghost:hover {
  background: rgba(0, 255, 102, 0.08);
  border-color: var(--pulse-neon);
  color: var(--pulse-neon);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 17px;
  border-radius: 12px;
  min-height: 54px;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 13px;
  min-height: 38px;
  border-radius: 8px;
}

/* ==========================================================================
   主视觉区 (Hero Section - 左右现代分栏布局)
   ========================================================================== */
.hero-section {
  padding-top: calc(var(--nav-height) + 50px);
  padding-bottom: 70px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.hero-left {
  text-align: left;
}

.hero-title {
  font-size: clamp(32px, 4.2vw, 50px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.8px;
  margin-bottom: 20px;
  color: #ffffff;
}

.hero-subtitle {
  font-size: clamp(15.5px, 1.8vw, 17.5px);
  color: var(--text-sub);
  line-height: 1.68;
  margin-bottom: 34px;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero-meta-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding: 14px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

/* ==========================================================================
   右侧动态图卡：矩阵实时遥测监控台 (Live Matrix Telemetry Console)
   ========================================================================== */
.telemetry-card {
  background: linear-gradient(145deg, rgba(13, 20, 32, 0.85) 0%, rgba(8, 12, 20, 0.95) 100%);
  border: 1px solid var(--pulse-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 255, 102, 0.12);
  overflow: hidden;
}

/* 背景矩阵科技扫描线 */
.telemetry-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #00ff66, #00f0ff, transparent);
  animation: scanTop 3s ease-in-out infinite;
}

@keyframes scanTop {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.telemetry-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 18px;
}

.telemetry-status-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--pulse-neon);
  text-transform: uppercase;
}

.telemetry-ping {
  font-size: 12px;
  color: var(--text-sub);
  font-family: var(--font-mono);
}

.telemetry-ping strong {
  color: var(--pulse-cyan);
}

/* 实时吞吐量大数字面板 */
.telemetry-speed-box {
  background: rgba(0, 255, 102, 0.04);
  border: 1px solid rgba(0, 255, 102, 0.18);
  border-radius: 12px;
  padding: 16px 18px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.speed-info-left {
  display: flex;
  flex-direction: column;
}

.speed-label {
  font-size: 12px;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.speed-value {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.1;
}

.speed-unit {
  font-size: 14px;
  color: var(--pulse-neon);
  margin-left: 4px;
}

/* 动态波形跳动条动画 */
.pulse-waveform {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 36px;
}

.wave-bar {
  width: 5px;
  background: var(--pulse-neon);
  border-radius: 3px;
  animation: wavePulse 1.2s ease-in-out infinite alternate;
}

.wave-bar:nth-child(1) { height: 40%; animation-delay: 0.1s; }
.wave-bar:nth-child(2) { height: 85%; animation-delay: 0.3s; background: var(--pulse-cyan); }
.wave-bar:nth-child(3) { height: 60%; animation-delay: 0.2s; }
.wave-bar:nth-child(4) { height: 100%; animation-delay: 0.4s; }
.wave-bar:nth-child(5) { height: 50%; animation-delay: 0.15s; background: var(--pulse-cyan); }
.wave-bar:nth-child(6) { height: 75%; animation-delay: 0.25s; }

@keyframes wavePulse {
  0% { transform: scaleY(0.4); opacity: 0.6; }
  100% { transform: scaleY(1); opacity: 1; }
}

/* 节点实时延迟监控列表 */
.nodes-telemetry-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 18px;
}

.node-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  font-size: 13.5px;
  transition: var(--transition);
}

.node-row:hover {
  background: rgba(0, 255, 102, 0.06);
  border-color: var(--pulse-border);
}

.node-name-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.node-status-led {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pulse-neon);
  box-shadow: 0 0 6px var(--pulse-neon);
}

.node-tag {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.node-latency {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--pulse-neon);
  display: flex;
  align-items: center;
  gap: 4px;
}

.telemetry-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  font-size: 12px;
  color: var(--text-sub);
}

.telemetry-footer-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.telemetry-footer-item strong {
  color: #fff;
  font-family: var(--font-mono);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-sub);
}

.meta-item strong {
  color: var(--text-main);
  font-size: 15px;
}

.meta-icon-green {
  color: var(--pulse-neon);
  display: flex;
  align-items: center;
}

/* ==========================================================================
   产品核心优势介绍 (3个图文卡片)
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--pulse-neon), transparent);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  background: var(--bg-card-hover);
  border-color: var(--pulse-border);
  box-shadow: 0 16px 36px rgba(0, 255, 102, 0.12);
}

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

.feature-icon-box {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  background: rgba(0, 255, 102, 0.08);
  border: 1px solid rgba(0, 255, 102, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--pulse-neon);
  box-shadow: 0 0 20px rgba(0, 255, 102, 0.15);
}

.feature-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-main);
}

.feature-desc {
  font-size: 14.5px;
  color: var(--text-sub);
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.feature-stats {
  display: flex;
  gap: 16px;
  padding-top: 16px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  font-size: 13px;
  color: var(--pulse-neon);
  font-weight: 600;
}

/* ==========================================================================
   流媒体与 AI 支持图卡
   ========================================================================== */
.ecosystem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}

.eco-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 34px;
  position: relative;
  transition: var(--transition);
}

.eco-card:hover {
  border-color: rgba(0, 240, 255, 0.4);
  box-shadow: 0 12px 32px rgba(0, 240, 255, 0.1);
  transform: translateY(-4px);
}

.eco-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.eco-icon-wrap {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--pulse-cyan);
}

.eco-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
}

.eco-subtitle {
  font-size: 13px;
  color: var(--text-sub);
}

.eco-desc {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 24px;
}

.eco-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.eco-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-main);
  transition: var(--transition);
}

.eco-pill:hover {
  background: rgba(0, 255, 102, 0.08);
  border-color: var(--pulse-neon);
  color: var(--pulse-neon);
}

.pill-status {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--pulse-neon);
  box-shadow: 0 0 6px var(--pulse-neon);
}

/* ==========================================================================
   套餐价格对比表 (Pricing)
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  align-items: stretch;
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: var(--transition);
}

.price-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-light);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

/* 热门推荐高亮卡片 */
.price-card.featured {
  background: linear-gradient(180deg, rgba(16, 28, 48, 0.95) 0%, rgba(10, 16, 26, 0.9) 100%);
  border: 1.5px solid var(--pulse-neon);
  box-shadow: 0 0 35px rgba(0, 255, 102, 0.18);
  transform: scale(1.02);
}

.price-card.featured:hover {
  transform: scale(1.03) translateY(-6px);
  box-shadow: 0 0 50px rgba(0, 255, 102, 0.3);
}

.price-badge-hot {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #00ff66, #00f0ff);
  color: #050b07;
  font-size: 12px;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: 999px;
  letter-spacing: 1px;
  text-transform: uppercase;
  box-shadow: 0 0 15px rgba(0, 255, 102, 0.5);
}

.plan-name {
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--text-main);
}

.plan-desc {
  font-size: 13.5px;
  color: var(--text-sub);
  margin-bottom: 24px;
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.price-original-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.price-origin-del {
  font-size: 13.5px;
  color: var(--text-muted);
  text-decoration: line-through;
}

.price-subsidy-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(255, 59, 48, 0.15);
  border: 1px solid rgba(255, 59, 48, 0.4);
  color: #ff453a;
  letter-spacing: 0.3px;
}

.price-curr {
  font-size: 22px;
  font-weight: 700;
  color: var(--pulse-neon);
}

.price-num {
  font-size: 44px;
  font-weight: 900;
  color: #ffffff;
  font-family: var(--font-mono);
  letter-spacing: -1px;
}

.price-cycle {
  font-size: 14px;
  color: var(--text-sub);
  margin-left: 4px;
}

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

.plan-feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14.5px;
  color: var(--text-main);
  margin-bottom: 14px;
}

.check-icon {
  width: 18px;
  height: 18px;
  color: var(--pulse-neon);
  flex-shrink: 0;
}

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

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.review-card:hover {
  border-color: rgba(0, 255, 102, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.stars-row {
  display: flex;
  gap: 4px;
  color: #ffb703;
  margin-bottom: 16px;
}

.review-text {
  font-size: 14.5px;
  color: var(--text-main);
  line-height: 1.7;
  margin-bottom: 22px;
  flex-grow: 1;
}

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

.reviewer-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0, 255, 102, 0.2), rgba(0, 240, 255, 0.2));
  border: 1px solid var(--pulse-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--pulse-neon);
  font-size: 16px;
}

.reviewer-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
}

.reviewer-title {
  font-size: 12px;
  color: var(--text-sub);
}

/* ==========================================================================
   深度评测与技术文章图卡板块 (SEO Articles Grid)
   ========================================================================== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.article-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--pulse-neon), transparent);
  opacity: 0;
  transition: var(--transition);
}

.article-card:hover {
  transform: translateY(-5px);
  background: var(--bg-card-hover);
  border-color: var(--pulse-border);
  box-shadow: 0 12px 28px rgba(0, 255, 102, 0.12);
}

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

.article-card-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(0, 255, 102, 0.1);
  color: var(--pulse-neon);
  border: 1px solid rgba(0, 255, 102, 0.3);
  margin-bottom: 14px;
}

.article-card-title {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 12px;
}

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

.article-card-title a:hover {
  color: var(--pulse-neon);
  text-shadow: 0 0 10px rgba(0, 255, 102, 0.4);
}

.article-card-desc {
  font-size: 13.5px;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 18px;
  flex-grow: 1;
}

.article-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  font-size: 12.5px;
}

.article-tag {
  color: var(--pulse-cyan);
  font-family: var(--font-mono);
  font-weight: 600;
}

.article-read-btn {
  color: var(--pulse-neon);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.article-read-btn:hover {
  transform: translateX(4px);
  color: #fff;
}

/* ==========================================================================
   常见问题解答 (FAQ 手风琴)
   ========================================================================== */
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.faq-item.active {
  border-color: var(--pulse-border);
  background: var(--bg-card-hover);
  box-shadow: 0 4px 20px rgba(0, 255, 102, 0.08);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
}

.faq-icon {
  width: 20px;
  height: 20px;
  color: var(--pulse-neon);
  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-out, padding 0.35s ease;
  padding: 0 26px;
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 250px;
  padding-bottom: 24px;
}

/* ==========================================================================
   页脚 Footer (只保留 4 个标题：网站地图、关于我们、服务条款、隐私政策)
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border-light);
  background: #040609;
  padding: 48px 0 42px;
  position: relative;
  text-align: center;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 36px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.footer-link {
  color: var(--text-sub);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  transition: var(--transition);
}

.footer-link:hover {
  color: var(--pulse-neon);
  background: rgba(0, 255, 102, 0.06);
}

/* SEO 核心权重锚文本专区 (Dofollow 强效传递 PBN 权重) */
.footer-seo-matrix {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
}

.footer-seo-link {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13px;
  transition: var(--transition);
}

.footer-seo-link:hover {
  color: var(--pulse-cyan);
}

/* 安全与合规信任徽标 (Trust Badges) */
.footer-trust-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.trust-badge-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-sub);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 5px 12px;
  border-radius: 6px;
}

.trust-badge-item svg {
  width: 14px;
  height: 14px;
  color: var(--pulse-neon);
}

.footer-disclaimer {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 820px;
  margin: 0 auto 16px;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-muted);
}

/* ==========================================================================
   右侧章节悬浮控制器 (上下章节切换)
   ========================================================================== */
.section-nav-controller {
  position: fixed;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 999;
  background: rgba(10, 15, 25, 0.82);
  border: 1px solid rgba(0, 255, 102, 0.25);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 12px 8px;
  border-radius: 30px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), 0 0 15px rgba(0, 255, 102, 0.15);
  transition: var(--transition);
}

.controller-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--pulse-neon);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.controller-btn:hover {
  background: var(--pulse-neon);
  color: #050b07;
  transform: scale(1.12);
  box-shadow: 0 0 16px var(--pulse-neon);
}

.controller-btn:active {
  transform: scale(0.92);
}

.controller-dots {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin: 4px 0;
}

.dot-item {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transition: var(--transition);
  cursor: pointer;
}

.dot-item:hover {
  background: rgba(0, 255, 102, 0.6);
  transform: scale(1.3);
}

.dot-item.active {
  height: 18px;
  border-radius: 99px;
  background: var(--pulse-neon);
  box-shadow: 0 0 10px var(--pulse-neon);
}

/* ==========================================================================
   内部子页面专用样式 (关于我们、服务条款、隐私政策、网站地图)
   ========================================================================== */
.legal-page-header {
  padding-top: calc(var(--nav-height) + 50px);
  padding-bottom: 30px;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 40px;
}

.legal-article {
  max-width: 860px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 42px 38px;
  margin-bottom: 80px;
}

.legal-article h2 {
  font-size: 22px;
  color: var(--pulse-neon);
  margin-top: 32px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.legal-article h2:first-of-type {
  margin-top: 0;
}

.legal-article p {
  color: var(--text-sub);
  font-size: 15.5px;
  line-height: 1.8;
  margin-bottom: 16px;
}

.legal-article ul {
  list-style: none;
  margin-bottom: 24px;
}

.legal-article li {
  position: relative;
  padding-left: 24px;
  color: var(--text-main);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 10px;
}

.legal-article li::before {
  content: "▹";
  position: absolute;
  left: 4px;
  color: var(--pulse-neon);
  font-size: 16px;
}

.sitemap-links-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.sitemap-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 22px;
}

.sitemap-box h3 {
  color: var(--pulse-neon);
  font-size: 18px;
  margin-bottom: 14px;
}

.sitemap-box a {
  display: block;
  color: var(--text-sub);
  text-decoration: none;
  font-size: 14.5px;
  margin-bottom: 10px;
  transition: var(--transition);
}

.sitemap-box a:hover {
  color: var(--pulse-neon);
  padding-left: 6px;
}

/* 品牌专属高质感 SVG 图标与徽标容器 */
.brand-icon-svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.eco-pill-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(18, 25, 38, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  transition: var(--transition);
}

.eco-pill-brand:hover {
  background: rgba(0, 255, 102, 0.08);
  border-color: var(--pulse-neon);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 255, 102, 0.15);
}

/* ==========================================================================
   移动端与响应式适配 (@media 媒体查询)
   ========================================================================== */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .features-grid,
  .pricing-grid,
  .testimonials-grid,
  .articles-grid {
    grid-template-columns: 1fr;
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .ecosystem-grid {
    grid-template-columns: 1fr;
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
  }
  
  .price-card.featured {
    transform: none;
  }
  
  .price-card.featured:hover {
    transform: translateY(-6px);
  }
}

@media (max-width: 768px) {
  :root {
    --nav-height: auto;
  }

  .site-nav {
    position: sticky;
    padding: 10px 0;
  }

  .nav-inner {
    flex-wrap: wrap;
    gap: 10px;
  }

  /* 移动端保留清晰的横向可滑动导航目录 */
  .nav-links {
    display: flex;
    order: 3;
    width: 100%;
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 4px;
    gap: 8px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .nav-links::-webkit-scrollbar {
    display: none;
  }

  .nav-link {
    font-size: 13px;
    padding: 6px 10px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.06);
  }

  .page-section {
    padding: 60px 0;
  }

  .hero-section {
    padding-top: 30px;
    padding-bottom: 45px;
  }

  .hero-title {
    font-size: 30px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 100%;
  }

  .hero-meta-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 20px;
  }

  .section-nav-controller {
    right: 12px;
    padding: 8px 6px;
    transform: translateY(-50%) scale(0.9);
  }

  .controller-btn {
    width: 36px;
    height: 36px;
  }

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

  .legal-article {
    padding: 26px 20px;
  }

  .sitemap-links-grid {
    grid-template-columns: 1fr;
  }
}