/* ==========================================================================
   西游云机场官网 (xiyouyunjc.homes) - 核心样式库
   设计语言：高奢深蓝黑科技美学 / 沉浸式暗夜发光 / 霓虹光晕底座 / 极致流动光感
   ========================================================================== */

:root {
  --bg-main: #070a13;
  --bg-secondary: #0b1120;
  --bg-card: #111827;
  --bg-card-hover: #1e293b;
  --bg-glass: rgba(17, 24, 39, 0.75);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(59, 130, 246, 0.35);

  --primary: #2563eb;
  --primary-light: #3b82f6;
  --primary-glow: rgba(37, 99, 235, 0.45);
  --cyan-accent: #06b6d4;
  --cyan-glow: rgba(6, 182, 212, 0.45);
  --green-accent: #10b981;
  
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-sub: #64748b;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 35px -5px rgba(37, 99, 235, 0.3);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  position: relative;
  background: radial-gradient(circle at 50% 0%, #172554 0%, #070a13 55%, #05070c 100%);
  background-attachment: fixed;
  color: var(--text-main);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

img, svg {
  vertical-align: middle;
}

/* 动态背景星空/光斑容器 */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.7;
}

.ambient-light {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(140px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.22;
  animation: pulseLight 12s infinite alternate ease-in-out;
}

.ambient-light-1 {
  top: -100px;
  left: 20%;
  background: #2563eb;
}

.ambient-light-2 {
  top: 40%;
  right: -100px;
  background: #0284c7;
  animation-delay: -4s;
}

.ambient-light-3 {
  bottom: 10%;
  left: -100px;
  background: #4f46e5;
  animation-delay: -8s;
}

@keyframes pulseLight {
  0% { transform: scale(0.9) translate(0, 0); opacity: 0.15; }
  50% { transform: scale(1.15) translate(40px, 30px); opacity: 0.28; }
  100% { transform: scale(1) translate(-20px, 20px); opacity: 0.18; }
}

/* 页面主要包装器 */
.page-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* 顶部导航栏 */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 10, 19, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  padding: 16px 0;
  transition: var(--transition);
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo-badge {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(37, 99, 235, 0.6);
  font-size: 20px;
}

.brand-text {
  background: linear-gradient(90deg, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-tag {
  font-size: 11px;
  padding: 2px 7px;
  border-radius: 20px;
  background: rgba(37, 99, 235, 0.2);
  border: 1px solid rgba(59, 130, 246, 0.4);
  color: #60a5fa;
  font-weight: 500;
  margin-left: 6px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, #3b82f6, #06b6d4);
  transition: width 0.3s ease;
  border-radius: 2px;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #ffffff;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 22px;
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 18px rgba(37, 99, 235, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
  transform: skewX(-25deg);
  transition: 0.6s ease;
}

.btn-primary:hover::before {
  left: 150%;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: #e2e8f0;
  font-weight: 500;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: 30px;
  border: 1px solid var(--border-glass);
  cursor: pointer;
  transition: var(--transition);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

/* 汉堡按钮 */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 24px;
  cursor: pointer;
}

/* 英雄区 (Hero Section) */
.hero {
  padding: 70px 0 60px;
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 18px;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 50px;
  font-size: 13px;
  color: #93c5fd;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  animation: floatPill 3s infinite ease-in-out;
}

@keyframes floatPill {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.hero-pill .status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulseDot 2s infinite;
}

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

.hero h1 {
  font-size: clamp(34px, 5.5vw, 58px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -1px;
  margin-bottom: 20px;
  color: #ffffff;
}

.hero-highlight {
  background: linear-gradient(135deg, #60a5fa 10%, #38bdf8 50%, #818cf8 90%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 36px;
  line-height: 1.65;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 45px;
}

.hero-cta-group .btn-primary {
  padding: 14px 34px;
  font-size: 16px;
  border-radius: 40px;
}

.hero-cta-group .btn-outline {
  padding: 14px 28px;
  font-size: 16px;
  border-radius: 40px;
}

/* 核心特性标签微卡片 */
.hero-badges-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 15px;
}

.badge-feature {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 30px;
  background: rgba(17, 24, 39, 0.6);
  border: 1px solid var(--border-glass);
  font-size: 13px;
  color: #cbd5e1;
  backdrop-filter: blur(8px);
}

.badge-feature span.icon {
  color: #38bdf8;
  font-weight: bold;
}

/* 状态仪表与网络品质浮窗 (类似图1深色界面卡片设计) */
.hero-showcase {
  margin-top: 40px;
  position: relative;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.dark-dashboard-card {
  background: linear-gradient(180deg, rgba(26, 38, 64, 0.7) 0%, rgba(13, 20, 36, 0.85) 100%);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-xl);
  padding: 30px;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7), 0 0 30px -5px rgba(37, 99, 235, 0.25);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.dark-dashboard-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(59, 130, 246, 0.6), transparent);
}

.dash-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: 16px;
  margin-bottom: 24px;
}

.dash-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 600;
  color: #f1f5f9;
}

.dash-title .icon-box {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: #2563eb;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 12px rgba(37, 99, 235, 0.6);
}

.dash-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.dash-stat-item {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: left;
  transition: var(--transition);
}

.dash-stat-item:hover {
  border-color: rgba(59, 130, 246, 0.4);
  background: rgba(30, 41, 59, 0.6);
  transform: translateY(-2px);
}

.dash-stat-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dash-stat-value {
  font-size: 22px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.5px;
}

.dash-stat-value.glow-cyan {
  color: #38bdf8;
  text-shadow: 0 0 12px rgba(56, 189, 248, 0.5);
}

.dash-stat-value.glow-green {
  color: #34d399;
  text-shadow: 0 0 12px rgba(52, 211, 153, 0.5);
}

/* 核心卖点网格板块 (Feature Matrix) */
.section {
  padding: 85px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 55px;
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #60a5fa;
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.25);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.25;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.75) 0%, rgba(11, 17, 32, 0.9) 100%);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary-light), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.6), 0 0 25px -5px rgba(37, 99, 235, 0.25);
}

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

.feature-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #60a5fa;
  margin-bottom: 22px;
  box-shadow: 0 0 16px rgba(37, 99, 235, 0.25);
}

.feature-title {
  font-size: 19px;
  font-weight: 700;
  color: #f8fafc;
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   套餐价格专区 (完全1:1精细还原图2样式与发光底座)
   ========================================================================== */
.pricing-section {
  padding: 90px 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(30, 58, 138, 0.15) 0%, transparent 70%);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  max-width: 1140px;
  margin: 0 auto;
}

/* 图2的卡片包装器 */
.pricing-card-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
}

/* 卡片本体 */
.pricing-card {
  background: #111726; /* 图2经典深蓝黑底色 */
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  padding: 34px 28px 30px;
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  height: 100%;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: rgba(56, 189, 248, 0.4);
}

/* 图2特色：底座霓虹蓝光晕 (Glow Pedestal) */
.pricing-card-wrapper::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 8%;
  right: 8%;
  height: 24px;
  border-radius: 50%;
  background: radial-gradient(ellipse at center, #00d2ff 0%, #0077ff 60%, transparent 100%);
  filter: blur(12px);
  opacity: 0.85;
  z-index: 1;
  transition: opacity 0.3s ease, filter 0.3s ease;
}

.pricing-card-wrapper:hover::after {
  opacity: 1;
  filter: blur(16px);
}

/* 推荐标记 */
.popular-ribbon {
  position: absolute;
  top: -12px;
  right: 24px;
  background: linear-gradient(135deg, #06b6d4, #2563eb);
  color: #ffffff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  box-shadow: 0 4px 14px rgba(6, 182, 212, 0.5);
  letter-spacing: 0.5px;
}

.plan-name {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.plan-price-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 26px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  padding-bottom: 20px;
}

.plan-currency {
  font-size: 24px;
  font-weight: 700;
  color: #ffffff;
}

.plan-amount {
  font-size: 42px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -1px;
}

.plan-cycle {
  font-size: 14px;
  color: var(--text-muted);
  font-weight: 500;
}

/* 权益清单列表 (严格按照图2内容) */
.plan-features-list {
  display: flex;
  flex-direction: column;
  gap: 13px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.plan-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.45;
  color: #cbd5e1;
}

/* 图2圆形对勾与叉叉 */
.icon-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  border: 1.5px solid #38bdf8;
  color: #38bdf8;
  font-size: 11px;
  font-weight: 900;
  flex-shrink: 0;
  margin-top: 2px;
}

.icon-cross {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  border: 1.5px solid #64748b;
  color: #64748b;
  font-size: 11px;
  font-weight: 900;
  flex-shrink: 0;
  margin-top: 2px;
}

/* 图2底部的沉稳按钮：立即购买 */
.btn-buy-plan {
  width: 100%;
  background: #1e293b;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-weight: 600;
  font-size: 15px;
  padding: 13px 0;
  border-radius: 28px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15);
  display: block;
}

.btn-buy-plan:hover {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  border-color: rgba(59, 130, 246, 0.5);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

/* 客户端支持中心 (全平台客户端) */
.clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.client-card {
  background: rgba(17, 24, 39, 0.65);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 26px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.client-card:hover {
  border-color: rgba(59, 130, 246, 0.4);
  background: rgba(22, 31, 50, 0.8);
  transform: translateY(-4px);
}

.client-platform-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.client-platform-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.client-platform-name {
  font-size: 17px;
  font-weight: 700;
  color: #ffffff;
}

.client-supported-apps {
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 18px;
}

.client-download-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 14px;
}

.client-link-btn {
  font-size: 13.5px;
  font-weight: 600;
  color: #38bdf8;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.client-link-btn:hover {
  color: #ffffff;
  transform: translateX(3px);
}

/* AI工具加速专区 */
.ai-showcase-box {
  background: linear-gradient(135deg, rgba(20, 30, 52, 0.8) 0%, rgba(13, 20, 36, 0.95) 100%);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  position: relative;
  overflow: hidden;
}

.ai-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 28px;
}

.ai-item-card {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: var(--transition);
}

.ai-item-card:hover {
  border-color: rgba(6, 182, 212, 0.4);
  transform: translateY(-3px);
}

.ai-item-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.ai-logo-pill {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.ai-item-name {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
}

.ai-item-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* SEO精选文章知识库网格 (12篇文章入口) */
.articles-section {
  padding: 85px 0;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
}

.article-card {
  background: rgba(17, 24, 39, 0.7);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  position: relative;
}

.article-card:hover {
  transform: translateY(-5px);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.7), 0 0 20px -5px rgba(37, 99, 235, 0.2);
}

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

.article-category {
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
  padding: 2px 10px;
  border-radius: 12px;
  font-weight: 600;
}

.article-title {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.45;
  margin-bottom: 12px;
  transition: color 0.2s ease;
}

.article-card:hover .article-title {
  color: #60a5fa;
}

.article-summary {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 14px;
  font-size: 13px;
}

.article-read-more {
  color: #38bdf8;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* 常见问题 FAQ (手风琴) */
.faq-section {
  padding: 80px 0;
}

.faq-accordion {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: rgba(17, 24, 39, 0.65);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(59, 130, 246, 0.3);
}

.faq-item.active {
  border-color: rgba(59, 130, 246, 0.5);
  background: rgba(21, 31, 51, 0.85);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
}

.faq-question {
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.faq-toggle-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: #94a3b8;
  transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(180deg);
  background: #2563eb;
  color: #ffffff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1), padding 0.35s ease;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 14.5px;
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding-bottom: 22px;
}

/* 底部全局转化横幅 (CTA Banner) */
.cta-banner-section {
  padding: 70px 0 100px;
}

.cta-banner-card {
  background: linear-gradient(135deg, #1e3a8a 0%, #172554 40%, #0f172a 100%);
  border: 1px solid rgba(59, 130, 246, 0.4);
  border-radius: var(--radius-xl);
  padding: 50px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 50px -10px rgba(37, 99, 235, 0.4);
}

.cta-banner-card h2 {
  font-size: clamp(26px, 3.5vw, 38px);
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 14px;
}

.cta-banner-card p {
  font-size: 16px;
  color: #cbd5e1;
  max-width: 640px;
  margin: 0 auto 30px;
}

/* 页脚 (Footer) */
.footer {
  background: #050811;
  border-top: 1px solid var(--border-glass);
  padding: 65px 0 35px;
  position: relative;
  z-index: 10;
}

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

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.65;
  margin-top: 14px;
  max-width: 340px;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 18px;
  letter-spacing: -0.2px;
}

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

.footer-links a {
  font-size: 13.5px;
  color: var(--text-muted);
}

.footer-links a:hover {
  color: #38bdf8;
  padding-left: 3px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 25px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-sub);
  flex-wrap: wrap;
  gap: 15px;
}

/* 浮动直达官网小挂件 (Floating CTA Widget) */
.floating-cta-bar {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(59, 130, 246, 0.4);
  padding: 8px 10px 8px 16px;
  border-radius: 40px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 20px rgba(37, 99, 235, 0.35);
  animation: pulseBar 4s infinite alternate ease-in-out;
}

@keyframes pulseBar {
  0% { transform: translateY(0); box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 15px rgba(37, 99, 235, 0.3); }
  100% { transform: translateY(-4px); box-shadow: 0 15px 35px rgba(0, 0, 0, 0.7), 0 0 28px rgba(56, 189, 248, 0.5); }
}

.floating-cta-text {
  font-size: 13px;
  font-weight: 600;
  color: #f1f5f9;
}

.floating-cta-text span {
  color: #38bdf8;
}

/* 移动端适配响应式 */
@media (max-width: 992px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 440px;
  }
  .pricing-card-wrapper {
    margin-bottom: 20px;
  }
  .dash-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #0b1120;
    flex-direction: column;
    padding: 20px;
    border-bottom: 1px solid var(--border-glass);
    gap: 16px;
  }
  .nav-links.open {
    display: flex;
  }
  .menu-toggle {
    display: block;
  }
  .hero-cta-group {
    flex-direction: column;
    width: 100%;
  }
  .hero-cta-group a {
    width: 100%;
  }
  .dash-stats-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .floating-cta-bar {
    left: 16px;
    right: 16px;
    bottom: 16px;
    justify-content: space-between;
  }
}