/* ==========================================================================
   Biu Biu 加速器 - 全新 2026 高端浅色未来赛博极客风格 (Neo-Cyber Light Theme)
   纯原生 HTML5 + CSS3 | 0 外部 JS 依赖 | 毫秒级秒开 | Bento Grid + HUD 终端排版
   ========================================================================== */

:root {
  /* 赛博高光浅色调色板 */
  --cyber-bg: #f5f8fc;
  --cyber-card-bg: rgba(255, 255, 255, 0.88);
  --cyber-card-solid: #ffffff;
  --cyber-card-darker: #f0f4f9;

  --text-primary: #0a0f1d;
  --text-secondary: #334155;
  --text-dim: #64748b;
  --text-cyan: #0284c7;

  /* 赛博电光高饱和霓虹色 */
  --neon-cyan: #00e5ff;
  --neon-blue: #0070f3;
  --neon-purple: #7928ca;
  --neon-magenta: #f81ce5;
  --neon-green: #00e676;
  --neon-amber: #ffab00;

  /* 渐变系列 */
  --grad-cyber-primary: linear-gradient(135deg, #00d2ff 0%, #0066ff 50%, #7928ca 100%);
  --grad-cyber-text: linear-gradient(135deg, #0a0f1d 20%, #0070f3 60%, #7928ca 100%);
  --grad-cyber-glow: linear-gradient(135deg, rgba(0, 229, 255, 0.15), rgba(121, 40, 202, 0.12));
  --grad-cyber-badge: linear-gradient(90deg, rgba(0, 229, 255, 0.12), rgba(0, 112, 243, 0.08));

  /* 边框与阴影 */
  --border-cyber: rgba(0, 140, 255, 0.16);
  --border-neon: rgba(0, 229, 255, 0.5);
  --border-subtle: rgba(148, 163, 184, 0.2);
  
  --shadow-sm: 0 4px 12px rgba(10, 15, 29, 0.04);
  --shadow-card: 0 16px 36px -8px rgba(0, 80, 200, 0.08), 0 4px 12px rgba(0, 0, 0, 0.03);
  --shadow-neon-cyan: 0 0 25px rgba(0, 229, 255, 0.35), 0 8px 20px rgba(0, 102, 255, 0.15);
  --shadow-neon-purple: 0 0 25px rgba(121, 40, 202, 0.3);

  /* 圆角与形变 */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --font-mono: "JetBrains Mono", "SF Mono", Consolas, Menlo, Monaco, monospace;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background-color: var(--cyber-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  /* 赛博高精刻度背景网格与光晕纹理 */
  background-image: 
    radial-gradient(circle at 15% 10%, rgba(0, 229, 255, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 35%, rgba(121, 40, 202, 0.07) 0%, transparent 50%),
    radial-gradient(circle at 50% 85%, rgba(0, 112, 243, 0.06) 0%, transparent 55%),
    linear-gradient(to right, rgba(0, 140, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 140, 255, 0.04) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 36px 36px, 36px 36px;
  background-attachment: fixed;
}

/* 顶部高科技光纤与芯片实景微噪叠层 */
.cyber-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 850px;
  background: url('https://images.unsplash.com/photo-1526374965328-7f61d4dc18c5?auto=format&fit=crop&w=1920&q=80') center top / cover no-repeat;
  opacity: 0.04;
  pointer-events: none;
  z-index: 0;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 40%, rgba(0,0,0,0) 100%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 40%, rgba(0,0,0,0) 100%);
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   赛博 HUD 顶部导航栏
   ========================================================================== */
.cyber-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(245, 248, 252, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-cyber);
}

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

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-cyber-logo {
  position: relative;
  width: 42px;
  height: 42px;
  background: var(--grad-cyber-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.3rem;
  font-weight: 900;
  box-shadow: var(--shadow-neon-cyan);
  clip-path: polygon(15% 0%, 100% 0%, 85% 100%, 0% 100%);
  transition: transform 0.3s ease;
}

.brand-wrapper:hover .brand-cyber-logo {
  transform: rotate(6deg) scale(1.05);
}

.brand-title {
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: -0.6px;
  background: linear-gradient(135deg, #0a0f1d 0%, #0070f3 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-status-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 3px 8px;
  background: rgba(0, 230, 118, 0.1);
  color: #059669;
  border: 1px solid rgba(0, 230, 118, 0.3);
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.status-dot-blink {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 8px #10b981;
  animation: blink 1.6s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--neon-blue);
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--neon-cyan);
  transition: width 0.25s ease;
}

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

/* ==========================================================================
   赛博按钮系统 (Cyber Button Matrix)
   ========================================================================== */
.btn-cyber {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  border: none;
}

.btn-cyber-primary {
  background: var(--grad-cyber-primary);
  color: #ffffff !important;
  box-shadow: var(--shadow-neon-cyan);
}

.btn-cyber-primary::before {
  content: "";
  position: absolute;
  top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  transition: left 0.6s ease;
}

.btn-cyber-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.5), 0 8px 24px rgba(0, 102, 255, 0.3);
}

.btn-cyber-primary:hover::before {
  left: 100%;
}

.btn-cyber-ghost {
  background: rgba(255, 255, 255, 0.9);
  color: var(--text-primary) !important;
  border: 1px solid var(--border-cyber);
  backdrop-filter: blur(10px);
}

.btn-cyber-ghost:hover {
  background: #ffffff;
  border-color: var(--neon-cyan);
  color: var(--neon-blue) !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-cyber-lg {
  padding: 15px 36px;
  font-size: 1.05rem;
}

/* ==========================================================================
   全新主视觉区：双列 Asymmetrical HUD 仪表盘设计
   ========================================================================== */
.hero-cyber {
  padding: 60px 0 80px;
  position: relative;
}

.hero-dual-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-content-col {
  position: relative;
  z-index: 2;
}

.cyber-telemetry-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  background: var(--grad-cyber-badge);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--neon-blue);
  font-weight: 700;
  margin-bottom: 22px;
  box-shadow: 0 2px 10px rgba(0, 229, 255, 0.12);
}

.hero-main-title {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -1.5px;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.cyber-glow-gradient {
  background: linear-gradient(135deg, #0070f3 0%, #00d2ff 40%, #7928ca 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-description {
  font-size: 1.12rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 34px;
  max-width: 580px;
}

.hero-btn-group {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.hero-trust-proof {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border-cyber);
}

.proof-item {
  display: flex;
  flex-direction: column;
}

.proof-num {
  font-size: 1.25rem;
  font-weight: 900;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.proof-label {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-weight: 600;
}

/* 右侧：赛博科技 HUD 仿真终端控制台 (CSS-Only Terminal) */
.hero-hud-col {
  position: relative;
}

.cyber-hud-card {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-lg);
  padding: 26px;
  box-shadow: var(--shadow-card), var(--shadow-neon-cyan);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
}

.cyber-hud-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--grad-cyber-primary);
}

.hud-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--border-cyber);
  margin-bottom: 20px;
}

.hud-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-primary);
  text-transform: uppercase;
}

.hud-traffic-indicator {
  display: flex;
  gap: 6px;
}

.hud-traffic-indicator span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.hud-node-stream {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 22px;
}

.hud-node-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--cyber-card-darker);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 140, 255, 0.08);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.node-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--text-primary);
}

.node-flag {
  font-size: 1rem;
}

.node-latency {
  color: #059669;
  font-weight: 800;
  background: rgba(16, 185, 129, 0.12);
  padding: 2px 8px;
  border-radius: 4px;
}

.hud-meter-wrap {
  margin-bottom: 20px;
}

.meter-info {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.meter-bar-outer {
  width: 100%;
  height: 8px;
  background: #e2e8f0;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.meter-bar-fill {
  width: 96%;
  height: 100%;
  background: var(--grad-cyber-primary);
  border-radius: var(--radius-full);
  position: relative;
  animation: meterPulse 3s ease-in-out infinite;
}

@keyframes meterPulse {
  0%, 100% { width: 92%; }
  50% { width: 98%; }
}

.hud-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.hud-stat-box {
  background: #ffffff;
  border: 1px solid var(--border-cyber);
  border-radius: var(--radius-sm);
  padding: 10px;
  text-align: center;
}

.hud-stat-val {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--neon-blue);
}

.hud-stat-lbl {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 2px;
}

/* ==========================================================================
   核心优势全新排版：非对称 Bento Grid (便当盒异构布局)
   ========================================================================== */
.section-cyber {
  padding: 85px 0;
}

.section-head-center {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}

.cyber-section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--neon-blue);
  background: var(--grad-cyber-badge);
  border: 1px solid var(--border-neon);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.section-main-heading {
  font-size: clamp(2rem, 3.4vw, 2.7rem);
  font-weight: 900;
  letter-spacing: -0.8px;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.section-subtext {
  font-size: 1.08rem;
  color: var(--text-secondary);
}

/* Bento Grid 容器 */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.bento-card {
  background: var(--cyber-card-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-cyber);
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-card);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.bento-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-neon);
  box-shadow: var(--shadow-neon-cyan);
}

.bento-card::after {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 32px;
  height: 32px;
  background: radial-gradient(circle at top right, rgba(0, 229, 255, 0.35), transparent 70%);
  border-top-right-radius: var(--radius-lg);
  pointer-events: none;
}

/* 占据 8 列的主力卡片 */
.bento-col-8 {
  grid-column: span 8;
}

/* 占据 4 列的次级卡片 */
.bento-col-4 {
  grid-column: span 4;
}

/* 占据 6 列的对半卡片 */
.bento-col-6 {
  grid-column: span 6;
}

.bento-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--grad-cyber-badge);
  border: 1px solid var(--border-neon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(0, 229, 255, 0.15);
}

.bento-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.bento-desc {
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.68;
}

/* Bento 内部科技视觉图解 */
.bento-visual-route {
  margin-top: 24px;
  padding: 16px;
  background: #ffffff;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-cyber);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.route-point {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.point-dot {
  width: 10px;
  height: 10px;
  background: var(--neon-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--neon-cyan);
}

.route-line-animated {
  flex-grow: 1;
  height: 2px;
  background: linear-gradient(90deg, #00d2ff, #7928ca);
  margin: 0 16px;
  position: relative;
}

.route-line-animated::after {
  content: "⚡ IPLC 零丢包 ⚡";
  position: absolute;
  top: -18px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.72rem;
  color: var(--neon-blue);
  font-weight: 800;
  white-space: nowrap;
}

/* ==========================================================================
   流媒体与 AI 解锁区：Cyber Deck 矩阵卡片
   ========================================================================== */
.matrix-deck-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.matrix-deck-card {
  background: var(--cyber-card-solid);
  border: 1px solid var(--border-cyber);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
  transition: all 0.35s ease;
}

.matrix-deck-card:hover {
  border-color: var(--border-neon);
  box-shadow: var(--shadow-neon-cyan);
  transform: translateY(-4px);
}

.deck-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-cyber);
}

.deck-header-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: var(--grad-cyber-badge);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.deck-header-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
}

.deck-tags-cloud {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.deck-item-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  background: var(--cyber-card-darker);
  border: 1px solid rgba(0, 140, 255, 0.1);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.deck-item-pill:hover {
  background: #ffffff;
  border-color: var(--neon-cyan);
  box-shadow: 0 4px 12px rgba(0, 229, 255, 0.15);
  transform: translateX(3px);
}

.pill-service-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
}

.pill-service-status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  color: #059669;
  background: rgba(16, 185, 129, 0.12);
  padding: 2px 6px;
  border-radius: 4px;
}

/* ==========================================================================
   套餐价格对比：赛博高阶矩阵 (Pricing Matrix)
   ========================================================================== */
.pricing-matrix-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-box {
  background: var(--cyber-card-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-cyber);
  border-radius: var(--radius-xl);
  padding: 42px 32px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.pricing-box:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-neon-cyan);
}

.pricing-box.featured-cyber {
  background: #ffffff;
  border: 2px solid var(--neon-cyan);
  box-shadow: 0 20px 45px rgba(0, 229, 255, 0.25), 0 4px 16px rgba(0, 112, 243, 0.1);
  transform: scale(1.03);
}

.pricing-box.featured-cyber:hover {
  transform: scale(1.03) translateY(-8px);
}

.cyber-ribbon {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--grad-cyber-primary);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 5px 20px;
  border-radius: var(--radius-full);
  letter-spacing: 0.6px;
  box-shadow: 0 4px 15px rgba(0, 229, 255, 0.45);
  font-family: var(--font-mono);
}

.plan-cyber-title {
  font-size: 1.45rem;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.plan-cyber-sub {
  font-size: 0.88rem;
  color: var(--text-dim);
  min-height: 42px;
  margin-bottom: 20px;
}

.price-cyber-display {
  display: flex;
  align-items: baseline;
  gap: 4px;
  padding-bottom: 24px;
  border-bottom: 1px dashed var(--border-cyber);
  margin-bottom: 26px;
}

.currency-symbol {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--neon-blue);
}

.price-val {
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: -1.5px;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.price-freq {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.cyber-specs-list {
  list-style: none;
  margin-bottom: 34px;
  flex-grow: 1;
}

.cyber-specs-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.94rem;
  color: var(--text-secondary);
  margin-bottom: 15px;
}

.cyber-specs-list li.spec-highlight {
  font-weight: 800;
  color: var(--text-primary);
}

.check-cyan {
  width: 18px;
  height: 18px;
  background: rgba(0, 229, 255, 0.15);
  color: #0284c7;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 900;
  flex-shrink: 0;
}

.pricing-box .btn-cyber {
  width: 100%;
}

/* ==========================================================================
   用户真实口碑：赛博电台调度日志风格 (Cyber Dispatch Reviews)
   ========================================================================== */
.reviews-dispatch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.dispatch-card {
  background: var(--cyber-card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-cyber);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s ease;
}

.dispatch-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-neon);
  box-shadow: var(--shadow-neon-cyan);
}

.dispatch-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
}

.dispatch-badge {
  background: rgba(0, 229, 255, 0.12);
  color: var(--neon-blue);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
}

.dispatch-rating {
  color: #f59e0b;
  font-size: 0.95rem;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.dispatch-quote {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.68;
  margin-bottom: 24px;
}

.dispatch-author-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-cyber);
}

.author-cyber-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--grad-cyber-badge);
  border: 1px solid var(--border-neon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: var(--neon-blue);
  font-family: var(--font-mono);
}

.author-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-primary);
}

.author-role {
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ==========================================================================
   常见问题 FAQ：赛博编号代码清单 (Cyber Accordion)
   ========================================================================== */
.cyber-faq-wrap {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cyber-faq-item {
  background: var(--cyber-card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-cyber);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}

.cyber-faq-item[open] {
  border-color: var(--neon-cyan);
  box-shadow: var(--shadow-neon-cyan);
  background: #ffffff;
}

.cyber-faq-summary {
  padding: 22px 26px;
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}

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

.faq-q-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.faq-idx {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--neon-blue);
  background: var(--grad-cyber-badge);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-cyber);
}

.faq-toggle-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--cyber-card-darker);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--neon-blue);
  transition: transform 0.3s ease;
}

.cyber-faq-item[open] .faq-toggle-icon {
  transform: rotate(45deg);
  background: var(--grad-cyber-primary);
  color: #ffffff;
}

.cyber-faq-body {
  padding: 0 26px 24px 62px;
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.75;
  border-top: 1px dashed var(--border-cyber);
  padding-top: 16px;
}

/* ==========================================================================
   行动号召光幕 (Pre-Footer CTA Strip)
   ========================================================================== */
.cyber-cta-strip {
  margin: 20px 0 80px;
}

.cta-cyber-box {
  background: linear-gradient(135deg, #0070f3 0%, #00d2ff 50%, #7928ca 100%);
  border-radius: var(--radius-xl);
  padding: 56px 40px;
  text-align: center;
  color: #ffffff;
  box-shadow: 0 20px 50px rgba(0, 112, 243, 0.35);
  position: relative;
  overflow: hidden;
}

.cta-cyber-box::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.25) 0%, transparent 60%);
  pointer-events: none;
}

.cta-cyber-title {
  font-size: clamp(2rem, 3.2vw, 2.6rem);
  font-weight: 900;
  margin-bottom: 14px;
  letter-spacing: -0.8px;
}

.cta-cyber-sub {
  font-size: 1.1rem;
  opacity: 0.95;
  max-width: 680px;
  margin: 0 auto 34px;
}

.btn-cyber-white {
  background: #ffffff;
  color: #0070f3 !important;
  font-weight: 800;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.btn-cyber-white:hover {
  transform: translateY(-2px);
  background: #f8fafc;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

/* ==========================================================================
   页脚规范：仅保留 4 个标题，在新页面打开
   ========================================================================== */
.cyber-footer {
  background: rgba(255, 255, 255, 0.95);
  border-top: 1px solid var(--border-cyber);
  padding: 40px 0;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.footer-cyber-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-copy {
  font-size: 0.9rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.footer-cyber-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.footer-cyber-links a {
  text-decoration: none;
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
  transition: all 0.25s ease;
}

.footer-cyber-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--grad-cyber-primary);
  transition: width 0.25s ease;
}

.footer-cyber-links a:hover {
  color: var(--neon-blue);
}

.footer-cyber-links a:hover::after {
  width: 100%;
}

/* ==========================================================================
   子页面样式适配 (关于我们 / 服务条款 / 隐私政策 / 网站地图)
   ========================================================================== */
.subpage-container {
  max-width: 900px;
  margin: 50px auto 80px;
  background: #ffffff;
  padding: 55px 48px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-cyber);
  box-shadow: var(--shadow-card);
}

.subpage-header {
  border-bottom: 1px solid var(--border-cyber);
  padding-bottom: 24px;
  margin-bottom: 36px;
}

.subpage-title {
  font-size: 2.3rem;
  font-weight: 900;
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.6px;
}

.subpage-meta {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--neon-blue);
}

.subpage-body h2 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 34px 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.subpage-body h2::before {
  content: "//";
  color: var(--neon-cyan);
  font-family: var(--font-mono);
  font-size: 1.1rem;
}

.subpage-body p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.subpage-body ul {
  margin: 0 0 24px 24px;
  color: var(--text-secondary);
  line-height: 1.8;
}

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

.back-to-home {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 40px;
  text-decoration: none;
  font-weight: 800;
  color: var(--neon-blue);
  font-size: 0.96rem;
  padding: 8px 16px;
  background: var(--grad-cyber-badge);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-neon);
  transition: all 0.2s ease;
}

.back-to-home:hover {
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  transform: translateX(-3px);
}

/* ==========================================================================
   移动端与大屏媒体查询适配 (@media)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-dual-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .bento-col-8,
  .bento-col-4,
  .bento-col-6 {
    grid-column: span 12;
  }

  .pricing-matrix-wrap {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .pricing-box.featured-cyber {
    transform: none;
  }

  .pricing-box.featured-cyber:hover {
    transform: translateY(-8px);
  }

  .matrix-deck-grid {
    grid-template-columns: 1fr;
  }

  .reviews-dispatch-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero-cyber {
    padding: 36px 0 50px;
  }

  .hero-main-title {
    font-size: 2.2rem;
  }

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

  .hero-btn-group .btn-cyber {
    width: 100%;
    min-height: 52px; /* 适合移动端手指点击舒适度 */
    font-size: 1.05rem;
  }

  .hero-trust-proof {
    justify-content: space-between;
  }

  .deck-tags-cloud {
    grid-template-columns: 1fr;
  }

  .cyber-faq-body {
    padding-left: 26px;
  }

  .footer-cyber-inner {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }

  .footer-cyber-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
  }

  .subpage-container {
    padding: 30px 20px;
    margin: 24px 16px 60px;
  }
}

/* ==========================================================================
   高科技网格卡片 (Grid Cards) 布局样式 - 用于推荐咨询页面与文章列表
   ========================================================================== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
  margin: 32px 0 48px;
}

.article-card {
  background: var(--cyber-card-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-cyber);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  text-decoration: none;
  color: inherit;
  position: relative;
  overflow: hidden;
}

.article-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-cyber-primary);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-neon);
  box-shadow: var(--shadow-neon-cyan);
}

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

.article-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 0.78rem;
  color: var(--text-dim);
}

.article-card-badge {
  background: var(--grad-cyber-badge);
  color: var(--neon-blue);
  border: 1px solid var(--border-neon);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.75rem;
}

.article-card-title {
  font-size: 1.12rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 12px;
  transition: color 0.2s ease;
}

.article-card:hover .article-card-title {
  color: var(--neon-blue);
}

.article-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 18px;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px dashed var(--border-cyber);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--neon-blue);
}

/* 单篇文章详情页深度排版 */
.article-detail-body {
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.85;
}

.article-detail-body h2 {
  font-size: 1.45rem;
  font-weight: 900;
  color: var(--text-primary);
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-cyber);
}

.article-detail-body h3 {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 24px 0 12px;
}

.article-detail-body p {
  margin-bottom: 18px;
  text-align: justify;
}

.article-detail-body strong {
  color: var(--text-primary);
}

.article-pbn-box {
  background: var(--cyber-card-darker);
  border-left: 4px solid var(--neon-blue);
  border-radius: var(--radius-sm);
  padding: 18px 22px;
  margin: 28px 0;
}

.article-pbn-box a {
  color: var(--neon-blue);
  font-weight: 800;
  text-decoration: underline;
}

@media (max-width: 768px) {
  .articles-grid {
    grid-template-columns: 1fr;
  }
}