/* ====================================================================
   龙猫云 (longmaoyun.blog) - 专属视觉规范
   主题风格：极夜星林与流光专线 (Cosmic Midnight Forest & Luminescent Transit)
   特性：深度暗色护眼 | 极速首屏系统字体 | 流光金焰高转化 | 移动端吸底 CTA
   ==================================================================== */

:root {
  /* 基础深空背景色系 */
  --bg-primary: #070b14;
  --bg-secondary: #0c1220;
  --bg-tertiary: #131b2e;
  --card-bg: #111a2e;
  --card-hover-bg: #15223c;
  
  /* 文字对比层级 (满足 AAA 级无障碍标准) */
  --text-main: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  
  /* 边框与分割线 */
  --border-color: #1e2c47;
  --border-hover: #334b73;
  --border-glow: rgba(245, 158, 11, 0.45);
  
  /* 核心行动色：金焰流光 (Firefly & Lantern Amber) - 极高视觉对比度与转化率 */
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --accent-light: rgba(245, 158, 11, 0.12);
  --accent-border: rgba(245, 158, 11, 0.35);
  --accent-glow: 0 0 24px rgba(245, 158, 11, 0.35);
  
  /* 辅助科技色：极光青 (Aurora Cyan) & 灵动绿 (Emerald) */
  --cyan: #38bdf8;
  --cyan-light: rgba(56, 189, 248, 0.12);
  --cyan-border: rgba(56, 189, 248, 0.3);
  --emerald: #10b981;
  --emerald-light: rgba(16, 185, 129, 0.12);
  
  /* 标签背景与文字 */
  --tag-bg: #162238;
  --tag-text: #94a3b8;
  
  /* 阴影与光晕 */
  --shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 16px -2px rgba(0, 0, 0, 0.5), 0 2px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 14px 28px -4px rgba(0, 0, 0, 0.65), 0 6px 12px -3px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 35px rgba(245, 158, 11, 0.2);
  
  /* 尺寸与圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --max-width: 1140px;
  
  /* 系统字体栈 (严禁外链字体) */
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.68;
  color: var(--text-secondary);
  background-color: var(--bg-primary);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(245, 158, 11, 0.08), transparent 70%),
    radial-gradient(ellipse 60% 40% at 90% 40%, rgba(56, 189, 248, 0.04), transparent 60%),
    radial-gradient(ellipse 50% 30% at 10% 80%, rgba(16, 185, 129, 0.03), transparent 50%);
  background-attachment: fixed;
  color: var(--text-secondary);
  padding-bottom: 76px;
}

@media (min-width: 768px) {
  body {
    padding-bottom: 0;
  }
}

a {
  color: var(--cyan);
  text-decoration: none;
  transition: all 0.18s ease;
}

a:hover {
  color: #7dd3fc;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* 布局容器 */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* 按钮体系：高对比度流光金焰 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  line-height: 1.3;
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
  color: #0b111e !important;
  border-color: #f59e0b;
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.55);
  transform: translateY(-2px);
  color: #000000 !important;
}

.btn-secondary {
  background-color: var(--card-bg);
  color: var(--text-main) !important;
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--card-hover-bg);
  border-color: var(--border-hover);
  color: #ffffff !important;
  transform: translateY(-1px);
}

.btn-block {
  width: 100%;
  display: flex;
}

.btn-lg {
  padding: 14px 30px;
  font-size: 1.06rem;
  border-radius: var(--radius-md);
}

/* 顶栏 Header (暗晶半透吸顶) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(7, 11, 20, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(30, 44, 71, 0.8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.site-logo svg {
  width: 32px;
  height: 32px;
  fill: var(--accent);
  filter: drop-shadow(0 0 8px rgba(245, 158, 11, 0.5));
}

.site-nav {
  display: none;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--accent);
}

.header-actions {
  display: none;
  align-items: center;
  gap: 14px;
}

.mobile-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-main);
}

.mobile-toggle svg {
  width: 22px;
  height: 22px;
}

/* 移动端抽屉导航 */
.mobile-nav-panel {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: rgba(12, 18, 32, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 22px 20px;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.7);
  z-index: 99;
}

.mobile-nav-panel.is-open {
  display: block;
}

.mobile-nav-panel nav {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mobile-nav-panel a {
  font-size: 1.06rem;
  font-weight: 500;
  color: var(--text-main);
  padding: 10px 0;
  border-bottom: 1px dashed var(--border-color);
}

.mobile-nav-panel .mobile-cta-box {
  margin-top: 18px;
}

@media (min-width: 860px) {
  .site-nav {
    display: flex;
  }
  .header-actions {
    display: flex;
  }
  .mobile-toggle {
    display: none;
  }
  .mobile-nav-panel {
    display: none !important;
  }
}

/* 主视觉区 Hero (极夜星幕与光轨) */
.hero-section {
  padding: 72px 0 64px;
  position: relative;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: 680px;
  height: 380px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.12) 0%, rgba(56, 189, 248, 0.05) 50%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-section .container {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background-color: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--accent-border);
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 600;
  color: #fbbf24;
  margin-bottom: 24px;
  box-shadow: 0 0 16px rgba(245, 158, 11, 0.15);
}

.hero-title {
  font-size: 2.3rem;
  line-height: 1.25;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 36px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 44px;
}

.hero-trust-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 28px;
  padding-top: 28px;
  border-top: 1px dashed var(--border-color);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.trust-item svg {
  width: 18px;
  height: 18px;
  fill: var(--accent);
}

@media (min-width: 768px) {
  .hero-section {
    padding: 96px 0 84px;
  }
  .hero-title {
    font-size: 3.2rem;
  }
}

/* 区块公用样式 */
.section {
  padding: 76px 0;
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 660px;
  margin: 0 auto 48px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* 中间模块 1：流媒体与 AI 支持 (暗晶 Bento 网格) */
.streaming-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.streaming-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  transition: all 0.24s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.streaming-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--border-hover), transparent);
  transition: all 0.3s ease;
}

.streaming-card:hover {
  background: var(--card-hover-bg);
  border-color: var(--cyan-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(56, 189, 248, 0.15);
  transform: translateY(-3px);
}

.streaming-card:hover::before {
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.streaming-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--cyan-light);
  border: 1px solid var(--cyan-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.streaming-icon svg {
  width: 26px;
  height: 26px;
  fill: var(--cyan);
}

.streaming-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.streaming-text {
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 18px;
  flex-grow: 1;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badge-tag {
  font-size: 0.8rem;
  padding: 4px 11px;
  background-color: var(--tag-bg);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  font-weight: 500;
}

@media (min-width: 640px) {
  .streaming-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .streaming-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 中间模块 2：核心特性 (4 张卡) */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.feature-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  transition: all 0.24s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.feature-item:hover {
  background: var(--card-hover-bg);
  border-color: var(--accent-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(245, 158, 11, 0.15);
  transform: translateY(-3px);
}

.feature-number {
  font-family: var(--font-mono);
  font-size: 0.86rem;
  font-weight: 800;
  color: #fbbf24;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid var(--accent-border);
  padding: 3px 9px;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 16px;
}

.feature-item h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.feature-item p {
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.68;
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 中间模块 3：使用场景卡 (3 张卡) */
.scenarios-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.scenario-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  transition: all 0.24s ease;
}

.scenario-card:hover {
  background: var(--card-hover-bg);
  border-color: var(--cyan-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.scenario-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.scenario-title {
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--text-main);
}

.scenario-target {
  font-size: 0.82rem;
  font-weight: 600;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 3px 11px;
  border-radius: 999px;
}

.scenario-device {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.scenario-desc {
  font-size: 0.96rem;
  color: var(--text-secondary);
  line-height: 1.68;
  flex-grow: 1;
}

@media (min-width: 768px) {
  .scenarios-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 中间模块 4：定价套餐卡 (3 档，推荐中档) */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: stretch;
}

.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.24s ease;
}

.pricing-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.pricing-card.featured {
  border: 2px solid var(--accent);
  background: linear-gradient(180deg, #16243d 0%, #111a2e 100%);
  box-shadow: 0 0 35px rgba(245, 158, 11, 0.22);
}

.featured-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #000000;
  font-size: 0.82rem;
  font-weight: 800;
  padding: 3px 18px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

.pricing-tier {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 6px;
}

.pricing-target {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  margin-bottom: 22px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
}

.price-currency {
  font-size: 1.35rem;
  font-weight: 800;
  color: #fbbf24;
  margin-right: 4px;
}

.price-amount {
  font-size: 2.8rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
}

.price-period {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-left: 8px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.pricing-features svg {
  width: 18px;
  height: 18px;
  fill: #fbbf24;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* 中间模块 5：FAQ 手风琴 (6 题) */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.2s ease;
}

.faq-item.is-active {
  border-color: var(--accent-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.faq-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
  cursor: pointer;
}

.faq-icon {
  width: 20px;
  height: 20px;
  fill: var(--text-muted);
  transition: transform 0.22s ease;
  flex-shrink: 0;
  margin-left: 12px;
}

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

.faq-content {
  display: none;
  padding: 0 24px 22px;
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.72;
}

.faq-item.is-active .faq-content {
  display: block;
}

/* 最终行动号召 Final CTA (深空高能光斑) */
.final-cta-section {
  padding: 80px 0;
  background: linear-gradient(180deg, #0c1527 0%, #070b14 100%);
  position: relative;
  color: #ffffff;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  overflow: hidden;
}

.final-cta-section::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 300px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.final-cta-title {
  font-size: 2.3rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
  position: relative;
}

.final-cta-desc {
  font-size: 1.12rem;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.68;
  position: relative;
}

.btn-white {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%) !important;
  color: #0b111e !important;
  font-weight: 800;
  border: none;
  box-shadow: 0 6px 24px rgba(245, 158, 11, 0.4);
  position: relative;
}

.btn-white:hover {
  background: linear-gradient(135deg, #fef08a 0%, #fbbf24 100%) !important;
  box-shadow: 0 8px 30px rgba(245, 158, 11, 0.6);
  transform: translateY(-2px);
}

/* 页脚 Footer */
.site-footer {
  background-color: #05080e;
  border-top: 1px solid var(--border-color);
  padding: 54px 0 32px;
  margin-top: auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding-bottom: 38px;
  border-bottom: 1px solid var(--border-color);
}

.footer-brand h4 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 380px;
}

.footer-links-group {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
}

.footer-col h5 {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.footer-col a {
  font-size: 0.92rem;
  color: var(--text-secondary);
}

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

.footer-bottom {
  padding-top: 26px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.86rem;
  color: var(--text-muted);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 1.5fr 2fr;
  }
  .footer-bottom {
    flex-direction: row;
    text-align: left;
  }
}

/* 移动端吸底浮条 Mobile Sticky CTA (极夜暗曜石) */
.mobile-sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background-color: rgba(9, 14, 26, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-color);
  padding: 10px 18px;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  transform: translateY(110%);
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.mobile-sticky-cta.is-visible {
  transform: translateY(0);
  pointer-events: auto;
}

.sticky-text {
  font-size: 0.86rem;
  line-height: 1.3;
}

.sticky-text strong {
  display: block;
  font-size: 0.96rem;
  color: var(--text-main);
}

.sticky-text span {
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .mobile-sticky-cta {
    display: none !important;
  }
}

/* 文章正文与合规页面暗夜排版 Prose */
.page-header {
  padding: 54px 0 36px;
  background: linear-gradient(180deg, #0d1527 0%, var(--bg-primary) 100%);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 40px;
}

.page-header .page-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  margin-bottom: 14px;
}

.page-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.prose-container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px 64px;
}

.prose {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  box-shadow: var(--shadow-sm);
}

@media (min-width: 768px) {
  .prose {
    padding: 50px 44px;
  }
}

.prose h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 22px;
  line-height: 1.3;
}

.prose h2 {
  font-size: 1.48rem;
  font-weight: 700;
  color: #ffffff;
  margin-top: 38px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.prose h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #f1f5f9;
  margin-top: 26px;
  margin-bottom: 12px;
}

.prose p {
  font-size: 1.02rem;
  color: var(--text-secondary);
  line-height: 1.78;
  margin-bottom: 20px;
}

.prose ul, .prose ol {
  margin-bottom: 22px;
  padding-left: 26px;
  color: var(--text-secondary);
}

.prose li {
  margin-bottom: 9px;
  line-height: 1.72;
}

.prose blockquote {
  border-left: 4px solid var(--accent);
  background-color: rgba(245, 158, 11, 0.08);
  padding: 16px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 22px 0;
  color: var(--text-secondary);
  font-size: 0.98rem;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 26px 0;
  font-size: 0.95rem;
}

.prose th, .prose td {
  border: 1px solid var(--border-color);
  padding: 12px 16px;
  text-align: left;
}

.prose th {
  background-color: var(--bg-tertiary);
  font-weight: 700;
  color: var(--text-main);
}

.prose td {
  background-color: rgba(17, 26, 46, 0.6);
}

.prose code {
  font-family: var(--font-mono);
  background-color: var(--bg-tertiary);
  color: #f472b6;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 0.9em;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* 面包屑导航 */
.breadcrumb-nav {
  margin-bottom: 22px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.breadcrumb-nav a {
  color: var(--text-muted);
}

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

.breadcrumb-nav span {
  margin: 0 6px;
}

/* 文章内部 CTA 模块 */
.article-cta-box {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(17, 26, 46, 0.9) 100%);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  margin: 44px 0 24px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.article-cta-box h3 {
  font-size: 1.38rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 10px;
  margin-top: 0;
  border-bottom: none;
  padding-bottom: 0;
}

.article-cta-box p {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto 22px;
}

/* 关联推荐与互链 */
.related-articles {
  margin-top: 42px;
  padding-top: 30px;
  border-top: 1px dashed var(--border-color);
}

.related-articles h4 {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-main);
}

.related-list {
  list-style: none;
  padding-left: 0;
}

.related-list li {
  margin-bottom: 12px;
}

.related-list a {
  font-weight: 500;
  color: var(--cyan);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.related-list a:hover {
  color: #7dd3fc;
  text-decoration: underline;
}

/* 指南索引网格 Cards */
.guides-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-bottom: 44px;
}

.guide-item-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
  transition: all 0.24s cubic-bezier(0.4, 0, 0.2, 1);
}

.guide-item-card:hover {
  background: var(--card-hover-bg);
  border-color: var(--cyan-border);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.guide-item-meta {
  font-size: 0.84rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.guide-item-title {
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.4;
}

.guide-item-title a {
  color: var(--text-main);
}

.guide-item-title a:hover {
  color: var(--accent);
}

.guide-item-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.68;
  margin-bottom: 20px;
  flex-grow: 1;
}

.guide-item-link {
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--cyan);
  align-self: flex-start;
}

.guide-item-link:hover {
  color: #7dd3fc;
}

@media (min-width: 640px) {
  .guides-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .guides-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}