/* ==========================================================================
   青云梯 (Qingyun Ladder) - 晨光暖杏与焦糖 极度精致视觉增强 CSS 系统
   ========================================================================== */

:root {
  /* 颜色系统 - 晨光暖杏与焦糖 */
  --bg-main: #FFFDF9;            /* 主背景: 极淡暖杏 */
  --bg-sub: #FAF2E8;             /* 次级背景: 柔和暖杏 */
  --bg-card: #FFFFFF;            /* 卡片背景: 纯白微暖 */
  --bg-accent-light: #FFF0E0;    /* 高亮背景: 晨光杏黄 */
  --bg-glass: rgba(255, 255, 255, 0.85);
  
  /* 焦糖色系 (Caramel) */
  --caramel-primary: #C86432;    /* 核心主焦糖色 */
  --caramel-hover: #B25222;      /* 悬停加深焦糖 */
  --caramel-dark: #6E2F10;       /* 浓郁焦糖黑 */
  --caramel-light: #F4C095;      /* 浅焦糖边框/线条 */
  --caramel-gradient: linear-gradient(135deg, #E07338 0%, #9E4316 100%);
  --caramel-gradient-hover: linear-gradient(135deg, #E87F47 0%, #B25222 100%);
  --caramel-glow: rgba(200, 100, 50, 0.28);

  /* 暖杏色系 (Warm Apricot) */
  --apricot-primary: #F2A968;    /* 暖杏亮色 */
  --apricot-glow: rgba(242, 169, 104, 0.25);
  --apricot-border: #F7D8C0;     /* 暖杏细边框 */

  /* 文字颜色 */
  --text-main: #2C221E;          /* 主文字: 暖黑碳 */
  --text-muted: #6E5F57;         /* 次要文字: 灰褐 */
  --text-light: #9E8C82;         /* 辅助文字: 浅灰褐 */
  --text-inverse: #FFFFFF;

  /* 品牌图标专属色彩 */
  --brand-chatgpt: #10A37F;
  --brand-claude: #D97757;
  --brand-midjourney: #4B6BFB;
  --brand-netflix: #E50914;
  --brand-disney: #0063E5;
  --brand-youtube: #FF0000;
  --brand-spotify: #1DB954;
  --brand-hbo: #7000FF;

  /* 阴影与圆角 */
  --shadow-sm: 0 4px 12px rgba(110, 47, 16, 0.04);
  --shadow-md: 0 10px 30px rgba(110, 47, 16, 0.07);
  --shadow-lg: 0 20px 45px rgba(110, 47, 16, 0.12);
  --shadow-caramel: 0 8px 24px rgba(200, 100, 50, 0.32);
  
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --radius-full: 9999px;

  /* 布局与动画 */
  --max-width: 1240px;
  --transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text-main);
  background-color: var(--bg-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  position: relative;
  overflow-x: hidden;
  background: radial-gradient(circle at 15% 15%, #FFF8F0 0%, #FFFDF9 50%, #FDF5EC 100%);
  min-height: 100vh;
}

/* 链接基础 */
a {
  color: var(--caramel-primary);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--caramel-hover);
}

/* 容器居中 */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 章节基础 */
section {
  padding: 100px 0;
  position: relative;
}

/* 统一标题样式 */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: var(--bg-accent-light);
  border: 1.5px solid var(--apricot-border);
  color: var(--caramel-primary);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
}

.section-title {
  font-size: 2.35rem;
  font-weight: 900;
  color: var(--caramel-dark);
  letter-spacing: -0.025em;
  margin-bottom: 16px;
  line-height: 1.3;
}

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

/* ==========================================================================
   按钮样式 (CTA Buttons)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 1.025rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  transition: var(--transition);
  cursor: pointer;
  border: none;
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background: var(--caramel-gradient);
  color: var(--text-inverse);
  box-shadow: var(--shadow-caramel);
}

.btn-primary:hover {
  background: var(--caramel-gradient-hover);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 14px 30px rgba(200, 100, 50, 0.42);
  color: var(--text-inverse);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--caramel-dark);
  border: 1.5px solid var(--apricot-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--bg-accent-light);
  border-color: var(--caramel-primary);
  transform: translateY(-3px);
  color: var(--caramel-dark);
  box-shadow: var(--shadow-md);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.1rem;
}

/* ==========================================================================
   导航栏 Header 与 目录 Nav Catalog
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 253, 249, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(247, 216, 192, 0.6);
  transition: var(--transition);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* 品牌 Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: var(--caramel-gradient);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 22px;
  box-shadow: 0 6px 16px rgba(200, 100, 50, 0.3);
  transition: var(--transition);
}

.logo:hover .logo-icon {
  transform: rotate(-8deg) scale(1.08);
}

.logo-text-wrapper {
  display: flex;
  flex-direction: column;
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--caramel-dark);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.logo-tagline {
  font-size: 0.725rem;
  color: var(--caramel-primary);
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* 页眉导航目录 */
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  font-size: 0.975rem;
  font-weight: 700;
  color: var(--text-muted);
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2.5px;
  background: var(--caramel-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--caramel-primary);
}

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

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

/* ==========================================================================
   第1章：Hero 主视觉区 (左右分布双栏布局)
   ========================================================================== */
.hero {
  padding-top: 140px;
  padding-bottom: 80px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

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

.hero-title {
  font-size: 3.25rem;
  font-weight: 900;
  color: var(--caramel-dark);
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.035em;
}

.hero-title .brand-highlight {
  background: var(--caramel-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.75;
}

.hero-cta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

/* 核心数据看板 */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: var(--bg-card);
  padding: 20px 24px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--apricot-border);
  box-shadow: var(--shadow-md);
}

.stat-item {
  text-align: center;
}

.stat-val {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--caramel-primary);
  line-height: 1.2;
}

.stat-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 600;
}

/* 右侧动态图卡 (Dynamic Card Animation) */
.hero-right {
  position: relative;
}

.dynamic-card-wrapper {
  position: relative;
  perspective: 1000px;
}

.live-card {
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 248, 240, 0.9) 100%);
  border: 2px solid var(--apricot-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  position: relative;
  backdrop-filter: blur(16px);
  animation: floatCard 6s ease-in-out infinite alternate;
}

@keyframes floatCard {
  0% { transform: translateY(0px) rotate(0deg); }
  100% { transform: translateY(-12px) rotate(0.8deg); }
}

.card-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--apricot-border);
}

.live-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 800;
  color: #10B981;
  background: rgba(16, 185, 129, 0.1);
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

.pulse-dot {
  width: 10px;
  height: 10px;
  background: #10B981;
  border-radius: 50%;
  position: relative;
}

.pulse-dot::after {
  content: '';
  position: absolute;
  top: -4px;
  left: -4px;
  width: 18px;
  height: 18px;
  background: rgba(16, 185, 129, 0.4);
  border-radius: 50%;
  animation: pulseGlow 1.8s infinite;
}

@keyframes pulseGlow {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(1.8); opacity: 0; }
}

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

.node-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--apricot-border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.node-row:hover {
  transform: translateX(6px);
  border-color: var(--caramel-primary);
}

.node-info {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.925rem;
  font-weight: 700;
  color: var(--caramel-dark);
}

.node-ping {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--caramel-primary);
  background: var(--bg-accent-light);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

/* 浮动微型动态贴纸 */
.floating-chip {
  position: absolute;
  background: var(--bg-card);
  border: 1.5px solid var(--apricot-border);
  padding: 10px 18px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--caramel-dark);
  z-index: 10;
}

.chip-1 {
  top: -18px;
  right: -10px;
  animation: floatChip1 5s ease-in-out infinite alternate;
}

.chip-2 {
  bottom: -20px;
  left: -15px;
  animation: floatChip2 5.5s ease-in-out infinite alternate;
}

@keyframes floatChip1 {
  0% { transform: translateY(0); }
  100% { transform: translateY(-10px); }
}

@keyframes floatChip2 {
  0% { transform: translateY(0); }
  100% { transform: translateY(10px); }
}

/* ==========================================================================
   第2章：核心优势 (极化细节卡片)
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--bg-card);
  border: 1.5px solid var(--apricot-border);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--caramel-gradient);
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--caramel-primary);
}

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

.feature-icon-box {
  width: 64px;
  height: 64px;
  background: var(--bg-accent-light);
  border: 1px solid var(--apricot-border);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.feature-card:hover .feature-icon-box {
  background: var(--caramel-gradient);
  color: white;
  transform: scale(1.1) rotate(-6deg);
}

.feature-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--caramel-dark);
  margin-bottom: 14px;
}

.feature-desc {
  font-size: 0.975rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ==========================================================================
   第3章：流媒体与 AI 图标增强区
   ========================================================================== */
.ai-streaming-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 36px;
}

.media-card {
  background: linear-gradient(150deg, #FFFFFF 0%, #FFF9F2 100%);
  border: 1.5px solid var(--apricot-border);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.media-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--caramel-light);
}

.media-badge {
  display: inline-block;
  padding: 6px 14px;
  background: var(--caramel-primary);
  color: white;
  font-size: 0.8rem;
  font-weight: 800;
  border-radius: var(--radius-full);
  margin-bottom: 18px;
}

.media-title {
  font-size: 1.65rem;
  font-weight: 900;
  color: var(--caramel-dark);
  margin-bottom: 14px;
}

.media-desc {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 28px;
  line-height: 1.65;
}

/* 原生精致彩色标签库 */
.pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.brand-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--bg-card);
  border: 1.5px solid var(--apricot-border);
  border-radius: var(--radius-sm);
  font-size: 0.925rem;
  font-weight: 700;
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.brand-pill:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.pill-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.pill-chatgpt .pill-dot { background: var(--brand-chatgpt); }
.pill-claude .pill-dot { background: var(--brand-claude); }
.pill-midjourney .pill-dot { background: var(--brand-midjourney); }
.pill-netflix .pill-dot { background: var(--brand-netflix); }
.pill-disney .pill-dot { background: var(--brand-disney); }
.pill-youtube .pill-dot { background: var(--brand-youtube); }
.pill-spotify .pill-dot { background: var(--brand-spotify); }
.pill-hbo .pill-dot { background: var(--brand-hbo); }

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

.price-card {
  background: var(--bg-card);
  border: 1.5px solid var(--apricot-border);
  border-radius: var(--radius-md);
  padding: 38px 26px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
  box-shadow: var(--shadow-sm);
}

.price-card.popular {
  border: 2.5px solid var(--caramel-primary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.04);
  background: #FFFDF9;
}

.popular-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--caramel-gradient);
  color: white;
  padding: 4px 18px;
  font-size: 0.825rem;
  font-weight: 800;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 12px rgba(200, 100, 50, 0.35);
  white-space: nowrap;
}

.price-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

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

.plan-header {
  margin-bottom: 20px;
}

.plan-name {
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--caramel-dark);
  margin-bottom: 6px;
}

.plan-subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  height: 38px;
  line-height: 1.4;
}

.plan-price-wrapper {
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px dashed var(--apricot-border);
}

.price-amount {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--caramel-primary);
}

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

.price-tag-sub {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--caramel-dark);
  background: var(--bg-accent-light);
  padding: 2px 8px;
  border-radius: 4px;
  margin-top: 4px;
}

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

.plan-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-main);
  margin-bottom: 12px;
  font-weight: 600;
}

.feature-check {
  color: var(--caramel-primary);
  font-weight: 900;
}

.price-card .btn {
  width: 100%;
}

/* ==========================================================================
   第5章：用户评价 (Testimonials)
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1.5px solid var(--apricot-border);
  border-radius: var(--radius-md);
  padding: 36px 30px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--caramel-light);
}

.stars {
  color: #F2994A;
  font-size: 1.15rem;
  margin-bottom: 18px;
}

.testimonial-text {
  font-size: 0.975rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 24px;
}

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

.user-avatar {
  width: 46px;
  height: 46px;
  background: var(--caramel-gradient);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  box-shadow: 0 4px 12px rgba(200, 100, 50, 0.25);
}

.user-name {
  font-size: 0.975rem;
  font-weight: 800;
  color: var(--caramel-dark);
}

.user-role {
  font-size: 0.8rem;
  color: var(--text-light);
  font-weight: 600;
}

/* ==========================================================================
   第6章：常见问题 FAQ
   ========================================================================== */
.faq-container {
  max-width: 840px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1.5px solid var(--apricot-border);
  border-radius: var(--radius-md);
  margin-bottom: 18px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  width: 100%;
  padding: 24px 30px;
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 1.075rem;
  font-weight: 800;
  color: var(--caramel-dark);
  text-align: left;
  cursor: pointer;
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--bg-accent-light);
}

.faq-icon {
  font-size: 1.25rem;
  color: var(--caramel-primary);
  transition: transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease;
  padding: 0 30px;
  color: var(--text-muted);
  font-size: 0.975rem;
  line-height: 1.75;
}

.faq-item.active .faq-answer {
  max-height: 320px;
  padding: 0 30px 28px 30px;
}

/* ==========================================================================
   右侧浮动章节上下移动控制控件
   ========================================================================== */
.section-nav-widget {
  position: fixed;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border: 1.5px solid var(--apricot-border);
  padding: 12px 8px;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.nav-arrow-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-accent-light);
  border: 1px solid var(--apricot-border);
  color: var(--caramel-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.nav-arrow-btn:hover {
  background: var(--caramel-primary);
  color: white;
  transform: scale(1.12);
  box-shadow: var(--shadow-caramel);
}

.nav-arrow-btn:active {
  transform: scale(0.92);
}

.section-indicators {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 4px 0;
}

.indicator-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--apricot-border);
  cursor: pointer;
  transition: var(--transition);
}

.indicator-dot.active {
  height: 20px;
  border-radius: 10px;
  background: var(--caramel-primary);
}

/* ==========================================================================
   页脚 Footer
   ========================================================================== */
.footer {
  background: #231B18;
  color: #D6C7C0;
  padding: 70px 0 44px;
  border-top: 4px solid var(--caramel-primary);
}

.footer-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 32px;
}

.footer-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 44px;
  flex-wrap: wrap;
  list-style: none;
}

.footer-nav-link {
  font-size: 1.1rem;
  font-weight: 800;
  color: #FFF;
  transition: var(--transition);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
}

.footer-nav-link:hover {
  color: var(--apricot-primary);
  background: rgba(255, 255, 255, 0.08);
}

.footer-copyright {
  font-size: 0.9rem;
  color: #9E8C82;
  margin-top: 10px;
}

/* ==========================================================================
   SEO 文章图卡板块 (SEO Posts Card Section)
   ========================================================================== */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.post-card {
  background: var(--bg-card);
  border: 1.5px solid var(--apricot-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.post-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--caramel-primary);
}

.post-card-badge {
  display: inline-block;
  align-self: flex-start;
  padding: 4px 12px;
  background: var(--bg-accent-light);
  border: 1px solid var(--apricot-border);
  color: var(--caramel-primary);
  font-size: 0.775rem;
  font-weight: 800;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.post-card-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--caramel-dark);
  margin-bottom: 12px;
  line-height: 1.45;
}

.post-card-excerpt {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.post-card-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px dashed var(--apricot-border);
}

.post-card-meta {
  font-size: 0.8rem;
  color: var(--text-light);
}

.post-card-btn-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ==========================================================================
   响应式适配 (@media queries)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-right { margin-top: 40px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
  .price-card.popular { transform: none; }
  .price-card.popular:hover { transform: translateY(-8px); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero { padding-top: 110px; padding-bottom: 50px; }
  .hero-title { font-size: 2.15rem; }
  .hero-cta { flex-direction: column; width: 100%; }
  .hero-cta .btn { width: 100%; }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  
  .features-grid { grid-template-columns: 1fr; }
  .ai-streaming-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .posts-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  
  .footer-nav {
    flex-direction: column;
    gap: 16px;
  }
}