/* ==========================================================================
   龙猫云 (Longmao Cloud) - 官方极速落地页纯原生 CSS 样式表
   极简高能、秒开加载、现代暗黑玻璃拟态设计
   ========================================================================== */

:root {
  --bg-primary: #070a12;
  --bg-secondary: #0e1424;
  --bg-card: rgba(18, 26, 45, 0.75);
  --bg-card-hover: rgba(28, 40, 68, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(0, 242, 254, 0.4);
  
  --accent-cyan: #00f2fe;
  --accent-blue: #4facfe;
  --accent-purple: #7f00ff;
  --accent-pink: #ff007f;
  --accent-green: #10b981;
  --accent-gold: #fbbf24;

  --gradient-primary: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
  --gradient-accent: linear-gradient(135deg, #7f00ff 0%, #e100ff 100%);
  --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #fbbf24 100%);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-sub: #cbd5e1;

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --max-width: 1200px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-glow: 0 10px 30px -10px rgba(0, 242, 254, 0.3);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-family);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* 极光背景斑斓特效 */
.bg-glow-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bg-glow-1 {
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.15) 0%, rgba(127, 0, 255, 0.08) 50%, transparent 70%);
  filter: blur(80px);
}

.bg-glow-2 {
  position: absolute;
  bottom: 10%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(79, 172, 254, 0.12) 0%, transparent 70%);
  filter: blur(90px);
}

/* 全局布局容器 */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* 导航栏 Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 10, 18, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  box-shadow: 0 4px 15px rgba(0, 242, 254, 0.4);
}

.logo-text {
  background: linear-gradient(180deg, #ffffff 0%, #cbd5e1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-tag {
  font-size: 0.75rem;
  padding: 2px 8px;
  background: rgba(0, 242, 254, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: 20px;
}

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

.nav-links a {
  color: var(--text-sub);
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

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

/* 按钮组件 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: none;
  outline: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #040914;
  box-shadow: 0 4px 20px rgba(0, 242, 254, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 242, 254, 0.5);
  filter: brightness(1.1);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.1rem;
  border-radius: 30px;
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  transform: translateY(-2px);
}

/* Hero 视觉区 (Split Left/Right Layout & Dynamic Card) */
.hero {
  padding: 80px 0 60px 0;
}

.hero-split-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.hero-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.hero-left .hero-badge {
  margin-bottom: 20px;
}

.hero-left .hero-title {
  text-align: left;
  font-size: clamp(2.3rem, 4.5vw, 3.8rem);
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-left .hero-subtitle {
  text-align: left;
  margin: 0 0 32px 0;
  max-width: 100%;
}

.hero-left .hero-actions {
  justify-content: flex-start;
  width: 100%;
  margin-bottom: 32px;
}

/* 动态右侧视觉卡片 (Dynamic Radar & Live Ping Animation) */
.hero-right-visual {
  position: relative;
  width: 100%;
}

.dynamic-card-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0, 242, 254, 0.35);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 35px rgba(0, 242, 254, 0.2);
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  animation: floatCard 5s infinite ease-in-out;
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.dynamic-card-img {
  width: 100%;
  height: auto;
  display: block;
}

/* 雷达扫频光斑指示 */
.radar-sweep-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 75% 35%, rgba(0, 242, 254, 0.2) 0%, transparent 60%);
  pointer-events: none;
}

/* 实时动态节点状态部件 (Dynamic Live Node Badges) */
.live-node-badges {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  z-index: 2;
}

.live-badge {
  background: rgba(11, 16, 28, 0.9);
  border: 1px solid rgba(0, 242, 254, 0.4);
  border-radius: 20px;
  padding: 6px 12px;
  font-size: 0.8rem;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulseGlow 1.5s infinite;
}

@keyframes pulseGlow {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.5; }
}

.live-ping {
  color: var(--accent-cyan);
  font-weight: 700;
  font-family: monospace;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: 30px;
  font-size: 0.875rem;
  color: var(--accent-cyan);
  margin-bottom: 24px;
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% { opacity: 0.9; }
  50% { opacity: 0.6; }
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.text-gradient {
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #00f5a0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 36px auto;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  max-width: 900px;
  margin: 0 auto 60px auto;
}

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

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-cyan);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.hero-banner-box {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(0, 242, 254, 0.2);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 242, 254, 0.15);
  position: relative;
}

.hero-banner-img {
  width: 100%;
  height: auto;
  display: block;
}

/* 核心优势区 Core Features */
.section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px auto;
}

.section-tag {
  color: var(--accent-cyan);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.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: var(--radius-lg);
  padding: 36px 28px;
  backdrop-filter: blur(12px);
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.feature-card:hover {
  transform: translateY(-8px);
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), var(--shadow-glow);
}

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

.feature-icon {
  width: 60px;
  height: 60px;
  border-radius: 14px;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 24px;
  color: var(--accent-cyan);
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 流媒体与 AI 加速区 */
.media-ai-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.media-ai-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.media-ai-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.tag-item {
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text-sub);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.tag-item strong {
  color: var(--text-main);
}

.media-ai-image-box {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(16, 185, 129, 0.3);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(16, 185, 129, 0.15);
}

.media-ai-image-box img {
  width: 100%;
  height: auto;
  display: block;
}

/* 价格表格 Pricing Section */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 20px;
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(12px);
  position: relative;
  transition: all 0.35s ease;
}

.price-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 242, 254, 0.4);
}

.price-card.popular {
  border: 2px solid var(--accent-cyan);
  background: rgba(14, 25, 48, 0.9);
  box-shadow: 0 10px 30px rgba(0, 242, 254, 0.2);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: #040914;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: 12px;
  letter-spacing: 1px;
}

.plan-name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.plan-desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 20px;
  min-height: 38px;
}

.plan-price {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--text-main);
  margin-bottom: 20px;
}

.plan-price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-muted);
}

.plan-features {
  list-style: none;
  margin-bottom: 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.plan-features li {
  font-size: 0.9rem;
  color: var(--text-sub);
  display: flex;
  align-items: center;
  gap: 10px;
}

.plan-features li::before {
  content: "✓";
  color: var(--accent-cyan);
  font-weight: bold;
}

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

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  backdrop-filter: blur(12px);
}

.review-stars {
  color: var(--accent-gold);
  margin-bottom: 12px;
  font-size: 1rem;
}

.review-text {
  color: var(--text-sub);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 20px;
  font-style: italic;
}

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

.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: white;
}

.reviewer-name {
  font-weight: 600;
  font-size: 0.95rem;
}

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

/* 常见问题 FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  backdrop-filter: blur(12px);
  transition: border-color 0.3s ease;
}

.faq-item[open] {
  border-color: var(--accent-cyan);
}

.faq-summary {
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}

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

.faq-summary::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--accent-cyan);
  transition: transform 0.3s ease;
}

.faq-item[open] .faq-summary::after {
  content: "−";
}

.faq-content {
  padding: 0 24px 20px 24px;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* CTA 底部横幅 Banner */
.cta-banner {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.1) 0%, rgba(127, 0, 255, 0.15) 100%);
  border: 1px solid rgba(0, 242, 254, 0.3);
  border-radius: 24px;
  padding: 60px 40px;
  text-align: center;
  margin: 40px 0 90px 0;
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-banner p {
  color: var(--text-sub);
  max-width: 600px;
  margin: 0 auto 30px auto;
  font-size: 1.05rem;
}

/* 页脚 Footer (只包含要求的4个标题链接) */
.footer {
  background: #04070d;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 40px 0;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-nav {
  display: flex;
  gap: 36px;
  list-style: none;
}

.footer-nav a {
  color: var(--text-sub);
  font-size: 1rem;
  font-weight: 600;
  transition: color 0.3s ease;
  position: relative;
}

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

.footer-bottom {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
}

/* 子页面 Subpages 常用通栏及内容样式 */
.page-header {
  padding: 60px 0 40px 0;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 48px;
}

.page-title {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 12px;
}

.page-subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.content-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(12px);
  margin-bottom: 32px;
}

.content-card h2 {
  font-size: 1.5rem;
  color: var(--accent-cyan);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.content-card h3 {
  font-size: 1.15rem;
  color: var(--text-main);
  margin: 20px 0 10px 0;
}

.content-card p {
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 14px;
}

.content-card ul {
  color: var(--text-sub);
  padding-left: 20px;
  line-height: 1.8;
  margin-bottom: 16px;
}

/* 网站地图样式 */
.sitemap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
}

.sitemap-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
}

.sitemap-card h3 {
  color: var(--accent-cyan);
  font-size: 1.2rem;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
}

.sitemap-card ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sitemap-card a {
  color: var(--text-sub);
  transition: color 0.2s ease;
}

.sitemap-card a:hover {
  color: var(--accent-cyan);
}

/* 节点覆盖表格及组件 */
.node-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.node-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.node-flag {
  font-size: 1.5rem;
}

.node-name {
  font-weight: 600;
  font-size: 0.95rem;
}

.node-ping {
  font-size: 0.8rem;
  color: var(--accent-green);
  margin-left: auto;
}

/* 响应式适配 Responsive Design & Mobile Touch Optimization */

@media (max-width: 1024px) {
  .features-grid, .pricing-grid, .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .media-ai-container {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  /* 基础容器边距 */
  .container {
    padding: 0 16px;
  }

  /* 手机端全面单栏集中展示 */
  .hero-split-container,
  .features-grid, 
  .pricing-grid, 
  .reviews-grid, 
  .hero-stats,
  .sitemap-grid,
  .node-grid {
    grid-template-columns: 1fr !important;
    gap: 20px;
  }

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

  .hero-left .hero-title,
  .hero-left .hero-subtitle {
    text-align: center;
  }

  .hero-left .hero-actions {
    justify-content: center;
  }

  /* 导航栏手机端极简规范 */
  .navbar {
    padding: 12px 0;
  }

  .nav-links {
    display: none; /* 手机端隐藏冗长文字菜单，保留品牌及核心 CTA 按钮 */
  }

  .logo {
    font-size: 1.2rem;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
    font-size: 1.1rem;
  }

  .logo-tag {
    display: none;
  }

  /* Hero 核心视觉区适配 */
  .hero {
    padding: 40px 0 30px 0;
  }

  .hero-title {
    font-size: 2.1rem;
    line-height: 1.25;
    margin-bottom: 16px;
  }

  .hero-subtitle {
    font-size: 0.98rem;
    margin-bottom: 28px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  /* 手机端按钮极致手指触控区 (Touch Target Optimization: 48px+ 最小触控高与全宽) */
  .btn {
    min-height: 48px;
    padding: 14px 24px;
    font-size: 1rem;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
  }

  .btn-lg {
    min-height: 52px;
    padding: 16px 28px;
    font-size: 1.05rem;
    width: 100%; /* 手机端按钮全宽，极其适合大拇指无压力点击 */
  }

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

  /* Section 通用内边距调优 */
  .section {
    padding: 50px 0;
  }

  .section-header {
    margin-bottom: 36px;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .section-desc {
    font-size: 0.95rem;
  }

  /* 价格卡片手机端细节 */
  .price-card {
    padding: 24px 20px;
  }

  .price-card.popular {
    margin-top: 10px;
  }

  /* 流媒体与 AI 标签云适配 */
  .tag-list {
    gap: 8px;
  }

  .tag-item {
    padding: 6px 12px;
    font-size: 0.825rem;
  }

  /* 折叠 FAQ 适配手指点击 */
  .faq-summary {
    padding: 18px 16px;
    font-size: 0.98rem;
    min-height: 50px; /* 触控交互提升 */
  }

  .faq-content {
    padding: 0 16px 16px 16px;
    font-size: 0.9rem;
  }

  /* CTA 底部横幅 */
  .cta-banner {
    padding: 40px 20px;
    margin: 20px 0 50px 0;
    border-radius: 16px;
  }

  .cta-banner h2 {
    font-size: 1.6rem;
  }

  /* 页脚适配 */
  .footer {
    padding: 40px 0 30px 0;
  }

  .footer-top {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 24px;
  }

  .footer-nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 100%;
  }

  .footer-nav li {
    width: 100%;
  }

  .footer-nav a {
    display: block;
    padding: 12px 0;
    font-size: 1.05rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    width: 100%;
  }

  /* 子页面文本区内边距适配 */
  .page-header {
    padding: 40px 0 24px 0;
    margin-bottom: 28px;
  }

  .page-title {
    font-size: 1.8rem;
  }

  .content-card {
    padding: 24px 18px;
    border-radius: 12px;
  }

  .content-card h2 {
    font-size: 1.3rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 1.85rem;
  }

  .stat-number {
    font-size: 1.6rem;
  }

  .btn {
    font-size: 0.95rem;
  }
}