/* 枣庄翼官网 (yztyun.cfd) - 全局现代视觉样式系统 */

:root {
  --bg-primary: #070913;
  --bg-secondary: #0d1127;
  --bg-card: rgba(18, 24, 54, 0.65);
  --bg-card-hover: rgba(28, 37, 80, 0.8);
  --border-color: rgba(255, 255, 255, 0.1);
  --border-highlight: rgba(0, 240, 255, 0.3);
  
  --text-main: #f0f4fc;
  --text-sub: #94a3b8;
  --text-muted: #64748b;
  
  --accent-cyan: #00f0ff;
  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --accent-gold: #f59e0b;
  
  --rainbow-gradient: linear-gradient(135deg, #ff007f 0%, #7f00ff 25%, #00f0ff 50%, #00ff88 75%, #ffaa00 100%);
  --glow-cyan: 0 0 25px rgba(0, 240, 255, 0.35);
  --glow-purple: 0 0 25px rgba(139, 92, 246, 0.35);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  position: relative;
  min-height: 100vh;
  background-color: var(--bg-primary);
}

/* 动态星空 Canvas 背景 */
#starfield {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
}

/* 模糊光晕底层 */
.cosmic-nebula {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  z-index: -1;
  pointer-events: none;
  opacity: 0.25;
}

.nebula-1 {
  top: -100px;
  left: -100px;
  background: radial-gradient(circle, var(--accent-purple), transparent);
}

.nebula-2 {
  top: 40%;
  right: -150px;
  background: radial-gradient(circle, var(--accent-cyan), transparent);
}

.nebula-3 {
  bottom: 10%;
  left: 20%;
  background: radial-gradient(circle, var(--accent-pink), transparent);
}

/* 通用容器 */
.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 彩虹渐变文字效果 */
.rainbow-text {
  background: var(--rainbow-gradient);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: rainbowShift 6s linear infinite;
  display: inline-block;
}

@keyframes rainbowShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* 标题样式 */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.25);
  border-radius: var(--radius-full);
  color: var(--accent-cyan);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  line-height: 1.25;
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-sub);
}

/* 导航栏 */
.header-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  z-index: 100;
  background: rgba(7, 9, 19, 0.75);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-smooth);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
  font-weight: 800;
  font-size: 1.35rem;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-cyan);
}

.logo-icon svg {
  width: 24px;
  height: 24px;
  fill: #fff;
}

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

.nav-links a {
  text-decoration: none;
  color: var(--text-sub);
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition-smooth);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* 按钮规范 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #00f0ff 0%, #7f00ff 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 240, 255, 0.5);
}

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

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

.btn-recommend {
  background: linear-gradient(135deg, #ffaa00 0%, #ec4899 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(236, 72, 153, 0.3);
}

.btn-recommend:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(236, 72, 153, 0.6);
}

/* Hero Section - 左右双栏布局 (图1位置换去H1右边展示) */
.hero {
  padding: 140px 0 80px 0;
  position: relative;
}

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

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: var(--radius-full);
  margin-bottom: 24px;
}

.hero-badge span {
  font-size: 0.875rem;
  color: #c084fc;
  font-weight: 600;
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.18;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-sub);
  margin: 0 0 36px 0;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-cta .btn {
  padding: 15px 32px;
  font-size: 1.02rem;
}

/* H1 右侧展示区 (App Icon + 4大数据卡片) */
.hero-right {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-app-card {
  background: var(--bg-card);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  backdrop-filter: blur(16px);
  box-shadow: var(--glow-purple);
  transition: var(--transition-smooth);
}

.hero-app-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glow-cyan);
}

.hero-app-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  flex-shrink: 0;
}

.hero-app-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-main);
}

.hero-app-status {
  font-size: 0.85rem;
  color: var(--accent-green);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  font-weight: 600;
}

.hero-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

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

.stat-card:hover {
  border-color: rgba(0, 240, 255, 0.4);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent-cyan);
  margin-bottom: 4px;
  line-height: 1.1;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-sub);
}

/* 实时流量节点 DashBoard */
.node-section {
  padding: 80px 0;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 30px;
}

.dashboard-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px;
  backdrop-filter: blur(16px);
}

.panel-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.node-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.node-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  transition: var(--transition-smooth);
}

.node-item:hover {
  background: rgba(0, 240, 255, 0.05);
  border-color: rgba(0, 240, 255, 0.2);
}

.node-info {
  display: flex;
  align-items: center;
  gap: 14px;
}

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

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

.node-type {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

.node-status {
  display: flex;
  align-items: center;
  gap: 16px;
}

.ping-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-green);
}

.ping-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-green);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulse 2s infinite;
}

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

.speedometer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  text-align: center;
  position: relative;
}

.speed-circle {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 8px solid rgba(255, 255, 255, 0.05);
  border-top-color: var(--accent-cyan);
  border-right-color: var(--accent-purple);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  position: relative;
  box-shadow: var(--glow-cyan);
  animation: spinSlow 20s linear infinite;
}

@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.speed-value-box {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.speed-value {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--text-main);
}

.speed-unit {
  font-size: 0.85rem;
  color: var(--text-sub);
}

/* 浮动价格表 样式 (价格表全部要浮动展示) */
.pricing-section {
  padding: 100px 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  align-items: stretch;
}

/* 价格卡片悬浮浮动动画 (价格表全部要浮动展示) */
.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(16px);
  position: relative;
  transition: var(--transition-smooth);
  
  /* 浮动动画 */
  animation: floatLevitate 5s ease-in-out infinite;
}

.pricing-card:nth-child(1) {
  animation-delay: 0s;
}
.pricing-card:nth-child(2) {
  animation-delay: 1.2s;
}
.pricing-card:nth-child(3) {
  animation-delay: 2.4s;
  border-color: rgba(0, 240, 255, 0.4);
  box-shadow: var(--glow-cyan);
}
.pricing-card:nth-child(4) {
  animation-delay: 0.6s;
}
.pricing-card:nth-child(5) {
  animation-delay: 1.8s;
  border-color: rgba(236, 72, 153, 0.4);
  box-shadow: var(--glow-purple);
}
.pricing-card:nth-child(6) {
  animation-delay: 3.0s;
}

@keyframes floatLevitate {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-16px);
  }
  100% {
    transform: translateY(0px);
  }
}

.pricing-card:hover {
  transform: translateY(-22px) scale(1.02) !important;
  border-color: var(--accent-cyan);
  box-shadow: 0 20px 40px rgba(0, 240, 255, 0.25);
  z-index: 10;
}

.popular-badge {
  position: absolute;
  top: -16px;
  right: 24px;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-pink));
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.plan-name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.plan-desc {
  font-size: 0.9rem;
  color: var(--text-sub);
  margin-bottom: 24px;
}

.plan-price {
  margin-bottom: 32px;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.price-currency {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

.price-amount {
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--text-main);
  line-height: 1;
}

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

.plan-features {
  list-style: none;
  margin-bottom: 36px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-sub);
}

.plan-features svg {
  width: 18px;
  height: 18px;
  fill: var(--accent-cyan);
  flex-shrink: 0;
}

/* 创始人/创办人 Profile */
.founder-section {
  padding: 80px 0;
}

.founder-card {
  background: linear-gradient(135deg, rgba(28, 37, 80, 0.7) 0%, rgba(13, 17, 39, 0.8) 100%);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: center;
  backdrop-filter: blur(16px);
}

.founder-avatar {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  padding: 4px;
  box-shadow: var(--glow-cyan);
}

.founder-avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background: #0f172a;
}

.founder-title {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.founder-role {
  color: var(--accent-cyan);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.founder-bio {
  color: var(--text-sub);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* 文章矩阵与内部跳转 */
.articles-section {
  padding: 100px 0;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.article-card:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 240, 255, 0.3);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.article-category {
  color: var(--accent-cyan);
  font-weight: 600;
  background: rgba(0, 240, 255, 0.1);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.article-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.4;
}

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

.article-title a:hover {
  color: var(--accent-cyan);
}

.article-excerpt {
  font-size: 0.95rem;
  color: var(--text-sub);
  margin-bottom: 24px;
  line-height: 1.6;
}

.article-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 16px;
}

.read-more {
  color: var(--accent-cyan);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.read-more:hover {
  text-decoration: underline;
}

/* 完整文章 View Modal / Expand Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(7, 9, 19, 0.85);
  backdrop-filter: blur(16px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  max-width: 900px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 48px;
  position: relative;
  box-shadow: 0 25px 50px rgba(0,0,0,0.5);
}

.modal-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition-smooth);
}

.modal-close:hover {
  background: rgba(255, 0, 100, 0.4);
}

.article-full-body {
  color: #d1d5db;
  line-height: 1.8;
  font-size: 1.05rem;
}

.article-full-body h2 {
  color: #fff;
  font-size: 1.6rem;
  margin: 32px 0 16px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.article-full-body h3 {
  color: var(--accent-cyan);
  font-size: 1.3rem;
  margin: 24px 0 12px 0;
}

.article-full-body p {
  margin-bottom: 20px;
}

.article-internal-link {
  color: var(--accent-cyan);
  text-decoration: underline;
  font-weight: 600;
  cursor: pointer;
}

.article-internal-link:hover {
  color: #a5f3fc;
}

/* 用户评价 User Testimonials */
.reviews-section {
  padding: 100px 0;
  background: rgba(13, 17, 39, 0.4);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.review-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-stars {
  color: var(--accent-gold);
  margin-bottom: 16px;
  display: flex;
  gap: 4px;
}

.review-text {
  font-size: 0.95rem;
  color: var(--text-sub);
  margin-bottom: 24px;
  line-height: 1.6;
}

.review-user {
  display: flex;
  align-items: center;
  gap: 14px;
}

.user-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #fff;
}

.user-name {
  font-weight: 700;
  font-size: 0.95rem;
}

.user-tag {
  font-size: 0.8rem;
  color: var(--accent-green);
}

/* 常见问题 FAQ */
.faq-section {
  padding: 100px 0;
}

.faq-list {
  max-width: 840px;
  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;
  transition: var(--transition-smooth);
}

.faq-item.active {
  border-color: rgba(0, 240, 255, 0.3);
}

.faq-question {
  padding: 24px 32px;
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.faq-icon {
  width: 24px;
  height: 24px;
  transition: transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 32px;
  color: var(--text-sub);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 32px 24px 32px;
}

/* 页脚与 PBN 输血管道 (【🔧 核心任务 2：页脚 PBN 权重精准输血管道】) */
footer {
  background: rgba(5, 7, 15, 0.95);
  border-top: 1px solid var(--border-color);
  padding: 48px 0;
  text-align: center;
  position: relative;
  z-index: 10;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.footer-brand {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 600px;
}

/* 友情链接 / PBN 权重输血管道样式：极度融入、优雅小字号 */
.pbn-links-area {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 12px;
  padding-top: 16px;
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
}

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

.pbn-link {
  font-size: 0.85rem;
  color: #94a3b8;
  text-decoration: none;
  transition: color 0.2s ease;
}

.pbn-link:hover {
  color: var(--accent-cyan);
  text-decoration: underline;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 12px;
}

/* 响应式适配 */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-left {
    text-align: center;
  }
  .hero-cta {
    justify-content: center;
  }
  .pricing-grid,
  .articles-grid,
  .reviews-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .founder-card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .founder-avatar {
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid,
  .articles-grid,
  .reviews-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none;
  }
  .modal-content {
    padding: 24px;
  }
}