/* ==========================================================================
   QuickQ VPN - 高端现代化网络加速落地页样式表
   核心特色：流动渐变网格背景、3D倾斜卡片、实时动态节点地图、发光光标、平滑滚动动效
   ========================================================================== */

:root {
  --font-family: 'Manrope', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --bg-main: #090514;
  --bg-card: rgba(22, 16, 43, 0.7);
  --bg-card-hover: rgba(33, 24, 64, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(99, 102, 241, 0.3);
  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-purple: #7928ca;
  --accent-blue: #0070f3;
  --accent-cyan: #00dfd8;
  --accent-coral: #ff4b4b;
  --accent-green: #10b981;
  --gradient-btn: linear-gradient(135deg, #ff4b4b 0%, #7928ca 50%, #0070f3 100%);
  --gradient-btn-hover: linear-gradient(135deg, #ff6b6b 0%, #903df4 50%, #208aff 100%);
  --gradient-pbn: linear-gradient(135deg, #00dfd8 0%, #0070f3 100%);
  --box-shadow-card: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-family);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  line-height: 1.6;
}

/* 自定义发光光标 */
.cursor-dot {
  width: 8px;
  height: 8px;
  background-color: #ff4b4b;
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  transition: transform 0.1s ease;
  transform: translate(-50%, -50%);
}

.cursor-trail {
  width: 36px;
  height: 36px;
  background: radial-gradient(circle, rgba(0, 223, 216, 0.4) 0%, rgba(121, 40, 202, 0.15) 60%, transparent 80%);
  border: 1px solid rgba(0, 223, 216, 0.5);
  border-radius: 50%;
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  transition: transform 0.18s ease-out, width 0.2s, height 0.2s;
  transform: translate(-50%, -50%);
}

/* 流动动态渐变背景网格 */
.mesh-gradient-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  overflow: hidden;
  background: #090514;
}

.mesh-blob {
  position: absolute;
  filter: blur(90px);
  opacity: 0.55;
  border-radius: 50%;
  animation: floatBlobs 20s infinite alternate ease-in-out;
}

.blob-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #7928ca 0%, rgba(121, 40, 202, 0) 70%);
  top: -150px;
  left: -100px;
  animation-duration: 22s;
}

.blob-2 {
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, #0070f3 0%, rgba(0, 112, 243, 0) 70%);
  top: 30%;
  right: -150px;
  animation-duration: 26s;
  animation-delay: -5s;
}

.blob-3 {
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, #ff4b4b 0%, rgba(255, 75, 75, 0) 70%);
  bottom: -100px;
  left: 25%;
  animation-duration: 24s;
  animation-delay: -10s;
}

.blob-4 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, #00dfd8 0%, rgba(0, 223, 216, 0) 70%);
  top: 60%;
  left: -100px;
  animation-duration: 18s;
  animation-delay: -3s;
}

@keyframes floatBlobs {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 80px) scale(1.1); }
  100% { transform: translate(-40px, -60px) scale(0.95); }
}

/* 网格纹理覆盖层 */
.grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

/* 容器与通用排版 */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 导航栏 */
.header-nav {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(9, 5, 20, 0.75);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-smooth);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.brand-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #ff4b4b, #7928ca, #0070f3);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(255, 75, 75, 0.4);
}

.brand-icon svg {
  width: 24px;
  height: 24px;
  fill: #ffffff;
}

.brand-name {
  background: linear-gradient(90deg, #ffffff 40%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-smooth);
  position: relative;
  padding: 6px 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #ff4b4b, #0070f3);
  transition: width 0.3s ease;
}

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

.nav-badge-hot {
  font-size: 0.7rem;
  padding: 2px 6px;
  background: #ff4b4b;
  color: #fff;
  border-radius: 10px;
  margin-left: 4px;
  vertical-align: top;
  font-weight: 700;
}

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  background: var(--gradient-btn);
  color: #ffffff;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: 0 4px 20px rgba(255, 75, 75, 0.35);
  transition: var(--transition-smooth);
}

.nav-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255, 75, 75, 0.5);
  background: var(--gradient-btn-hover);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 8px;
}

/* 通用按钮 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--gradient-btn);
  color: #ffffff;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  box-shadow: 0 8px 30px rgba(255, 75, 75, 0.4);
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 35px rgba(255, 75, 75, 0.55);
}

.btn-pbn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  border: 1px solid rgba(0, 223, 216, 0.4);
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05rem;
  backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
}

.btn-pbn:hover {
  background: rgba(0, 223, 216, 0.12);
  border-color: #00dfd8;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 223, 216, 0.25);
}

/* 主视觉区 Hero */
.hero-section {
  padding: 90px 0 70px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(121, 40, 202, 0.2);
  border: 1px solid rgba(121, 40, 202, 0.4);
  border-radius: 20px;
  font-size: 0.88rem;
  color: #c4b5fd;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.4rem;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -1.5px;
  margin-bottom: 24px;
}

.hero-title .brand-highlight {
  background: linear-gradient(135deg, #ff4b4b 0%, #a855f7 50%, #00d2ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-desc {
  font-size: 1.2rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
}

.stat-item h3 {
  font-size: 1.8rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 4px;
}

.stat-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* 3D 倾斜交互卡片 (Hero 3D Tilt Card) */
.tilt-card-container {
  perspective: 1000px;
  display: flex;
  justify-content: center;
}

.tilt-card {
  width: 100%;
  max-width: 440px;
  background: rgba(22, 16, 43, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  padding: 32px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 40px rgba(121, 40, 202, 0.2);
  transform-style: preserve-3d;
  transition: transform 0.15s ease-out, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.tilt-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, #00dfd8, #ff4b4b, transparent);
}

.tilt-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.tilt-card-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: #10b981;
  background: rgba(16, 185, 129, 0.15);
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #10b981;
  border-radius: 50%;
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.9); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.speed-meter {
  text-align: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}

.speed-number {
  font-size: 3.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #00dfd8, #0070f3);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 6px;
}

.speed-unit {
  font-size: 1rem;
  color: var(--text-secondary);
}

.node-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.92rem;
}

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

.node-latency {
  color: #10b981;
  font-weight: 600;
}

/* 核心优势板块 (3个核心图文卡片) */
.section {
  padding: 90px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: #00dfd8;
  margin-bottom: 12px;
  font-weight: 700;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  color: #ffffff;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 36px 30px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

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

.feature-icon-wrapper {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.feature-card:nth-child(1) .feature-icon-wrapper {
  background: rgba(255, 75, 75, 0.15);
  border-color: rgba(255, 75, 75, 0.3);
  color: #ff4b4b;
}

.feature-card:nth-child(2) .feature-icon-wrapper {
  background: rgba(121, 40, 202, 0.15);
  border-color: rgba(121, 40, 202, 0.3);
  color: #a855f7;
}

.feature-card:nth-child(3) .feature-icon-wrapper {
  background: rgba(0, 112, 243, 0.15);
  border-color: rgba(0, 112, 243, 0.3);
  color: #0070f3;
}

.feature-icon-wrapper svg {
  width: 32px;
  height: 32px;
}

.feature-card h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: #ffffff;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.65;
}

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

.support-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
}

.support-card:hover {
  border-color: var(--border-glow);
  box-shadow: var(--box-shadow-card);
}

.support-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
}

.support-header-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.streaming-icon {
  background: rgba(239, 68, 68, 0.2);
  color: #ef4444;
}

.ai-icon {
  background: rgba(16, 185, 129, 0.2);
  color: #10b981;
}

.support-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
}

.support-card p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.badge-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.service-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  font-size: 0.9rem;
  color: #ffffff;
  font-weight: 500;
}

.service-badge svg {
  width: 18px;
  height: 18px;
}

/* 全球实时动态节点地图 */
.map-section-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 40px;
  position: relative;
  overflow: hidden;
  margin-top: 50px;
}

.map-container {
  position: relative;
  width: 100%;
  height: 420px;
  background: radial-gradient(circle at center, rgba(30, 27, 75, 0.6) 0%, rgba(10, 6, 25, 0.95) 100%);
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
}

.world-map-svg {
  width: 100%;
  height: 100%;
  opacity: 0.22;
  object-fit: cover;
}

.map-marker {
  position: absolute;
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 10;
}

.marker-dot {
  width: 12px;
  height: 12px;
  background-color: #00dfd8;
  border-radius: 50%;
  position: relative;
  box-shadow: 0 0 12px #00dfd8;
}

.marker-dot::after {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  right: -4px;
  bottom: -4px;
  border: 2px solid #00dfd8;
  border-radius: 50%;
  animation: mapPulse 2.2s infinite;
}

@keyframes mapPulse {
  0% { transform: scale(1); opacity: 1; }
  100% { transform: scale(3); opacity: 0; }
}

.marker-label {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(9, 5, 20, 0.9);
  border: 1px solid rgba(0, 223, 216, 0.4);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  white-space: nowrap;
  color: #fff;
  pointer-events: none;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

/* 套餐价格对比表 */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 36px 28px;
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 75, 75, 0.4);
  box-shadow: var(--box-shadow-card);
}

.pricing-card.featured {
  background: linear-gradient(180deg, rgba(33, 24, 64, 0.9) 0%, rgba(18, 12, 38, 0.95) 100%);
  border: 2px solid #ff4b4b;
  box-shadow: 0 15px 45px -10px rgba(255, 75, 75, 0.35);
  transform: scale(1.04);
}

.pricing-card.featured:hover {
  transform: scale(1.04) translateY(-8px);
}

.featured-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #ff4b4b, #7928ca);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 20px;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(255, 75, 75, 0.5);
  white-space: nowrap;
}

.plan-name {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #ffffff;
}

.plan-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.plan-price {
  margin-bottom: 24px;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffffff;
}

.amount {
  font-size: 2.8rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1;
}

.period {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.plan-savings {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 24px;
}

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

.plan-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.plan-features li svg {
  width: 16px;
  height: 16px;
  fill: #10b981;
  flex-shrink: 0;
}

.btn-plan {
  width: 100%;
  padding: 12px 0;
  border-radius: 25px;
  text-align: center;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: var(--transition-smooth);
}

.btn-plan-normal {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn-plan-normal:hover {
  background: rgba(255, 255, 255, 0.18);
}

.btn-plan-featured {
  background: var(--gradient-btn);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(255, 75, 75, 0.4);
}

.btn-plan-featured:hover {
  background: var(--gradient-btn-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(255, 75, 75, 0.6);
}

/* 用户真实评价区 (Testimonials) */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 30px;
  backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
}

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

.review-stars {
  color: #f59e0b;
  font-size: 1.1rem;
  margin-bottom: 14px;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
}

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

.reviewer-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7928ca, #0070f3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
  font-size: 1rem;
}

.reviewer-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
}

.reviewer-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* 常见问题解答 FAQ */
.faq-container {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.faq-question {
  padding: 22px 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  font-size: 1.05rem;
  color: #ffffff;
  user-select: none;
}

.faq-icon {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
  fill: var(--text-secondary);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  fill: #ff4b4b;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease;
  padding: 0 28px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 22px;
}

/* 页脚 Footer - 严格规范：只保留4个标题，打开新页面展示 */
.site-footer {
  background: rgba(6, 4, 15, 0.95);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 35px;
  margin-top: 60px;
}

.footer-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 48px;
  list-style: none;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.footer-nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.05rem;
  font-weight: 600;
  transition: var(--transition-smooth);
  position: relative;
  padding: 6px 12px;
  border-radius: 8px;
}

.footer-nav-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
}

.footer-copyright {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
  padding-top: 25px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* 滚动揭示动效 Reveal Animations */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* 资讯与文章页面专属样式 */
.article-container {
  max-width: 860px;
  margin: 40px auto 80px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 48px;
  backdrop-filter: blur(16px);
}

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

.article-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
  color: #ffffff;
}

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

.article-body {
  color: #cbd5e1;
  font-size: 1.05rem;
  line-height: 1.85;
}

.article-body h2 {
  font-size: 1.55rem;
  color: #ffffff;
  margin: 36px 0 16px;
  font-weight: 700;
}

.article-body h3 {
  font-size: 1.25rem;
  color: #e2e8f0;
  margin: 24px 0 12px;
}

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

.article-body ul, .article-body ol {
  margin-bottom: 22px;
  padding-left: 24px;
}

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

.article-body a {
  color: #00dfd8;
  text-decoration: underline;
  text-underline-offset: 4px;
  font-weight: 600;
  transition: color 0.2s;
}

.article-body a:hover {
  color: #38bdf8;
}

.article-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 40px 0 80px;
}

.news-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

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

.news-tag {
  font-size: 0.8rem;
  color: #00dfd8;
  font-weight: 700;
  margin-bottom: 12px;
}

.news-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.4;
  margin-bottom: 12px;
}

.news-snippet {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.news-link {
  color: #ff4b4b;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.news-link:hover {
  color: #ff6b6b;
}

/* 响应式媒体查询 @media */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-stats {
    justify-content: center;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-8px);
  }
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  .mobile-toggle {
    display: block;
  }
  .hero-title {
    font-size: 2.4rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .support-grid {
    grid-template-columns: 1fr;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .article-card-grid {
    grid-template-columns: 1fr;
  }
  .footer-nav {
    gap: 20px;
    flex-direction: column;
  }
  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }
  .article-container {
    padding: 24px;
    margin: 20px auto 40px;
  }
  .cursor-dot, .cursor-trail {
    display: none; /* 移动端触屏隐藏鼠标光标 */
  }
}