/* ====================================================================
   仙路湾加速 - 星界幻想 (Astral Fantasy) 全站核心视觉样式表
   深度定制：二次元动漫幻想风 · 星轨符印 · 晶石磨砂质感 · 高转化光效
   ==================================================================== */

:root {
  --font-base: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  
  /* 星界幻想专属色系 */
  --bg-deep: #070b14;
  --bg-space: #0c1222;
  --bg-surface: rgba(15, 23, 42, 0.78);
  --bg-surface-elevated: rgba(22, 34, 64, 0.88);
  --bg-card-glass: rgba(18, 27, 49, 0.72);
  
  --text-pure: #f8fafc;
  --text-main: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  
  /* 魔法与灵能流光色 */
  --color-cyan: #06b6d4;
  --color-cyan-glow: rgba(6, 182, 212, 0.45);
  --color-violet: #8b5cf6;
  --color-violet-glow: rgba(139, 92, 246, 0.45);
  --color-magenta: #ec4899;
  --color-gold: #f59e0b;
  --color-emerald: #10b981;
  
  --border-celestial: rgba(139, 92, 246, 0.28);
  --border-glow: rgba(6, 182, 212, 0.5);
  --border-glass: rgba(255, 255, 255, 0.08);
  
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  --shadow-astral: 0 8px 32px rgba(3, 7, 18, 0.6);
  --shadow-glow: 0 0 24px rgba(139, 92, 246, 0.25);
  --shadow-glow-cyan: 0 0 24px rgba(6, 182, 212, 0.3);
  
  --max-width: 1140px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--bg-deep);
}

:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-base);
  background: var(--bg-deep);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(139, 92, 246, 0.15), transparent 45%),
    radial-gradient(circle at 85% 25%, rgba(6, 182, 212, 0.14), transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(236, 72, 153, 0.1), transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
  padding-bottom: 76px;
}

@media (min-width: 769px) {
  body {
    padding-bottom: 0;
  }
}

/* 动态背景 Canvas */
#astralCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.75;
}

/* 链接样式 */
a {
  color: var(--color-cyan);
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

a:hover {
  color: #38bdf8;
  text-shadow: 0 0 8px rgba(56, 189, 248, 0.4);
}

/* 布局容器 */
.site-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 2;
}

/* 顶部导航 (星云磨砂质感) */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(7, 11, 20, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-celestial);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  transition: all 0.3s ease;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--text-pure);
  text-shadow: 0 0 12px rgba(6, 182, 212, 0.4);
}

.brand-logo:hover {
  color: var(--text-pure);
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  filter: drop-shadow(0 0 8px rgba(139, 92, 246, 0.5));
  transition: transform 0.3s ease;
}

.brand-logo:hover .brand-icon {
  transform: rotate(15deg) scale(1.05);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  position: relative;
  padding: 6px 4px;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-violet));
  transition: all 0.25s ease;
  transform: translateX(-50%);
  border-radius: 2px;
}

.nav-link:hover {
  color: var(--text-pure);
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-violet) 100%);
  color: #ffffff !important;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 16px var(--color-cyan-glow);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  min-height: 40px;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(6, 182, 212, 0.6), 0 0 12px rgba(139, 92, 246, 0.5);
}

.nav-toggle {
  display: none;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-celestial);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-pure);
  min-height: 44px;
}

/* 高转化动漫灵能 CTA 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 28px;
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  border: 1px solid transparent;
  user-select: none;
}

/* 主按钮：流光扫过与能量光晕 */
.btn-primary {
  background: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 50%, #d946ef 100%);
  background-size: 200% 200%;
  color: #ffffff !important;
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4), 0 0 15px rgba(6, 182, 212, 0.3);
  animation: astralGradientPulse 6s ease infinite;
}

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

.btn-primary::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -60%;
  width: 40%;
  height: 200%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transform: rotate(30deg);
  transition: none;
  animation: shineSweeper 4.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes shineSweeper {
  0% { left: -70%; }
  25% { left: 140%; }
  100% { left: 140%; }
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.6), 0 0 25px rgba(6, 182, 212, 0.5);
}

.btn-primary:active {
  transform: translateY(1px) scale(0.98);
}

/* 次级按钮：晶石线框磨砂质感 */
.btn-secondary {
  background: rgba(18, 27, 49, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--text-pure) !important;
  border: 1px solid var(--border-celestial);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
}

.btn-secondary:hover {
  background: rgba(26, 38, 68, 0.85);
  border-color: var(--color-cyan);
  box-shadow: 0 0 16px rgba(6, 182, 212, 0.35);
  transform: translateY(-2px);
}

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

/* Hero 模块 (苍穹星阵与双层环轨) */
.hero-section {
  padding: 72px 0 64px;
  text-align: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-celestial);
}

.hero-astrolabe-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 720px;
  height: 720px;
  pointer-events: none;
  z-index: 1;
  opacity: 0.18;
}

.astrolabe-ring-outer {
  transform-origin: center;
  animation: rotateClockwise 60s linear infinite;
}

.astrolabe-ring-inner {
  transform-origin: center;
  animation: rotateCounterClockwise 45s linear infinite;
}

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

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

.hero-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid rgba(139, 92, 246, 0.35);
  color: #c4b5fd;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 24px;
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.2);
  letter-spacing: 0.05em;
}

.hero-meta-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 8px var(--color-cyan);
  animation: pulseDot 2s ease infinite;
}

@keyframes pulseDot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.6; }
}

.hero-title {
  font-size: 2.85rem;
  font-weight: 800;
  color: var(--text-pure);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1.25;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.6);
}

.hero-title-gradient {
  background: linear-gradient(135deg, #ffffff 10%, #67e8f9 50%, #c084fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 44px;
}

.hero-indicators {
  display: flex;
  justify-content: center;
  gap: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border-glass);
  max-width: 760px;
  margin: 0 auto;
}

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

.indicator-val {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-cyan);
  text-shadow: 0 0 10px rgba(6, 182, 212, 0.35);
}

.indicator-lbl {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* 通用区块排版 */
.content-section {
  padding: 72px 0;
  position: relative;
}

.section-alt {
  background: rgba(12, 18, 34, 0.55);
  border-top: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}

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

.section-desc {
  font-size: 1.02rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* 场景卡 (Use Cases - 晶石悬浮感) */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scene-card {
  background: var(--bg-card-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-celestial);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  box-shadow: var(--shadow-astral);
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.scene-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-cyan), var(--color-violet));
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  opacity: 0.7;
}

.scene-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-glow);
  box-shadow: 0 12px 36px rgba(6, 182, 212, 0.25), var(--shadow-astral);
}

.scene-audience {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-cyan);
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 4px 12px;
  border-radius: 999px;
  align-self: flex-start;
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}

.scene-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 12px;
}

.scene-devices {
  font-size: 0.85rem;
  color: #cbd5e1;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

.scene-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* 特性卡 (Features - 4 Cards, 动漫符印切角) */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-celestial);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-astral);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-violet);
  box-shadow: 0 10px 30px rgba(139, 92, 246, 0.25);
}

.feature-card svg {
  filter: drop-shadow(0 0 10px var(--color-cyan-glow));
}

.feature-num {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--color-violet);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.feature-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 12px;
}

.feature-text {
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* 流媒体与 AI 支持展示模块 (次元矩阵) */
.support-block {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-celestial);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  box-shadow: var(--shadow-astral), var(--shadow-glow);
  position: relative;
  overflow: hidden;
}

.support-block::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.25), transparent 70%);
  pointer-events: none;
}

.support-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.support-col h3 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.platform-tag {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(139, 92, 246, 0.35);
  padding: 8px 16px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-pure);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.platform-tag:hover {
  border-color: var(--color-cyan);
  background: rgba(6, 182, 212, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 0 12px rgba(6, 182, 212, 0.3);
}

.support-notes {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* 专线优势列表 (Benefits) */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.benefit-card {
  border-left: 4px solid var(--color-cyan);
  background: var(--bg-card-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 24px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  box-shadow: var(--shadow-astral);
  border-top: 1px solid var(--border-glass);
  border-right: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
  transition: all 0.25s ease;
}

.benefit-card:hover {
  transform: translateX(4px);
  border-left-color: var(--color-violet);
  box-shadow: 0 4px 20px rgba(6, 182, 212, 0.2);
}

.benefit-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 10px;
}

.benefit-text {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 定价模块 (Pricing - 3 档位，主推档高光灵能护盾) */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-celestial);
  border-radius: var(--radius-md);
  padding: 36px 26px;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-astral);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pricing-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
}

.pricing-card.featured {
  border: 2px solid var(--color-violet);
  background: rgba(26, 23, 60, 0.78);
  box-shadow: 0 0 35px rgba(139, 92, 246, 0.35), var(--shadow-astral);
  transform: scale(1.03);
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-6px);
  box-shadow: 0 0 45px rgba(139, 92, 246, 0.5), var(--shadow-astral);
}

.pricing-badge {
  position: absolute;
  top: -13px;
  right: 24px;
  background: linear-gradient(135deg, var(--color-cyan), var(--color-violet));
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 3px 14px;
  border-radius: 999px;
  letter-spacing: 0.08em;
  box-shadow: 0 0 12px var(--color-cyan-glow);
}

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

.tier-audience {
  font-size: 0.86rem;
  color: var(--color-cyan);
  margin-bottom: 22px;
}

.tier-price-box {
  margin-bottom: 26px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border-glass);
}

.tier-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-pure);
  text-shadow: 0 0 12px rgba(255, 255, 255, 0.3);
}

.tier-cycle {
  font-size: 0.92rem;
  color: var(--text-muted);
}

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

.tier-features li {
  font-size: 0.93rem;
  color: #cbd5e1;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.tier-features li::before {
  content: "✦";
  font-size: 0.85rem;
  color: var(--color-cyan);
  text-shadow: 0 0 6px var(--color-cyan);
}

/* FAQ 手风琴 (星轨折叠) */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-celestial);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-header {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 20px 22px;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-pure);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: inherit;
  min-height: 48px;
}

.faq-header:hover {
  background: rgba(255, 255, 255, 0.03);
}

.faq-icon {
  font-weight: 600;
  font-size: 1.3rem;
  color: var(--color-cyan);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  margin-left: 14px;
}

.faq-item.active {
  border-color: var(--color-violet);
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: var(--color-magenta);
}

.faq-body {
  display: none;
  padding: 0 22px 20px;
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.7;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.faq-item.active .faq-body {
  display: block;
}

/* Final CTA 模块 (次元召唤星阵) */
.final-cta {
  background: linear-gradient(180deg, rgba(12, 18, 34, 0.9) 0%, rgba(7, 11, 20, 1) 100%);
  border-top: 1px solid var(--border-celestial);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.18), transparent 70%);
  pointer-events: none;
}

.final-cta-inner {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.final-cta h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 18px;
  color: var(--text-pure);
  text-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
}

.final-cta p {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

/* 页脚 */
.site-footer {
  background: rgba(5, 8, 15, 0.95);
  border-top: 1px solid var(--border-celestial);
  padding: 50px 0 30px;
  position: relative;
  z-index: 2;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
  margin-bottom: 26px;
}

.footer-nav a {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
}

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

.footer-disclaimer {
  max-width: 820px;
  margin: 0 auto 22px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.7;
}

.footer-copyright {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* 移动端吸底 CTA 栏 (星穹浮窗) */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(12, 18, 34, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--border-celestial);
  padding: 12px 18px;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.5);
  transform: translateY(100%);
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
  pointer-events: none;
}

@media (max-width: 768px) {
  .mobile-sticky-bar.visible {
    display: block;
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

.mobile-sticky-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.sticky-text {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-pure);
  line-height: 1.35;
}

.sticky-text small {
  display: block;
  font-size: 0.78rem;
  color: var(--color-cyan);
  font-weight: normal;
}

.sticky-btn {
  background: linear-gradient(135deg, var(--color-cyan), var(--color-violet));
  color: #ffffff !important;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  box-shadow: 0 0 14px var(--color-cyan-glow);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

/* 文章详情页样式 (SEO Articles - 沉浸式星空阅读) */
.article-container {
  max-width: 860px;
  margin: 40px auto 60px;
  padding: 0 20px;
  position: relative;
  z-index: 2;
}

.article-header {
  margin-bottom: 34px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--border-celestial);
}

.article-breadcrumb {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.article-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-pure);
  line-height: 1.35;
  margin-bottom: 18px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.88rem;
  color: var(--color-cyan);
}

.article-intro {
  background: rgba(139, 92, 246, 0.12);
  border-left: 4px solid var(--color-violet);
  padding: 18px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 1.08rem;
  color: #f1f5f9;
  margin-bottom: 36px;
  line-height: 1.8;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25);
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #cbd5e1;
}

.article-content h2 {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--text-pure);
  margin: 40px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-celestial);
  text-shadow: 0 0 10px rgba(139, 92, 246, 0.3);
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-cyan);
  margin: 28px 0 14px;
}

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

.article-content ul, .article-content ol {
  margin: 0 0 24px 26px;
}

.article-content li {
  margin-bottom: 10px;
}

.article-content blockquote {
  background: rgba(15, 23, 42, 0.6);
  border-left: 4px solid var(--color-cyan);
  padding: 14px 20px;
  margin: 22px 0;
  color: var(--text-muted);
  font-style: italic;
  border-radius: 0 var(--radius-xs) var(--radius-xs) 0;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 0.95rem;
  background: rgba(15, 23, 42, 0.6);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

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

.article-content th {
  background: rgba(26, 38, 68, 0.85);
  color: var(--text-pure);
  font-weight: 700;
}

.article-faq {
  background: var(--bg-card-glass);
  border: 1px solid var(--border-celestial);
  border-radius: var(--radius-md);
  padding: 28px;
  margin: 40px 0;
  box-shadow: var(--shadow-astral);
}

.article-faq h3 {
  font-size: 1.25rem;
  color: var(--text-pure);
  margin-top: 0;
  margin-bottom: 18px;
}

.article-faq-item {
  margin-bottom: 18px;
}

.article-faq-item:last-child {
  margin-bottom: 0;
}

.article-faq-q {
  font-weight: 700;
  color: var(--color-cyan);
  font-size: 1.02rem;
  margin-bottom: 8px;
}

.article-faq-a {
  font-size: 0.96rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.15) 0%, rgba(139, 92, 246, 0.2) 100%);
  border: 1px solid var(--color-violet);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  text-align: center;
  margin: 44px 0;
  box-shadow: 0 0 30px rgba(139, 92, 246, 0.3);
}

.article-cta-box h3 {
  font-size: 1.4rem;
  color: var(--text-pure);
  margin-bottom: 12px;
}

.article-cta-box p {
  color: #cbd5e1;
  font-size: 0.98rem;
  margin-bottom: 22px;
}

.article-links {
  border-top: 1px solid var(--border-celestial);
  padding-top: 26px;
  margin-top: 40px;
}

.article-links h4 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 14px;
  color: var(--text-pure);
}

.article-links ul {
  list-style: none;
  padding-left: 0;
}

.article-links li {
  margin-bottom: 10px;
}

/* 法律页面 (About, Privacy, Terms, Disclaimer, Sitemap) */
.legal-box {
  background: var(--bg-card-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-celestial);
  border-radius: var(--radius-md);
  padding: 44px 36px;
  margin: 44px auto;
  max-width: 880px;
  box-shadow: var(--shadow-astral);
  position: relative;
  z-index: 2;
}

.legal-box h1 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 14px;
  color: var(--text-pure);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.legal-updated {
  font-size: 0.88rem;
  color: var(--color-cyan);
  margin-bottom: 30px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border-celestial);
}

.legal-section {
  margin-bottom: 30px;
}

.legal-section h2 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.legal-section h2::before {
  content: "✦";
  color: var(--color-cyan);
  font-size: 0.9rem;
}

.legal-section p {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.75;
  margin-bottom: 12px;
}

.legal-section ul {
  margin: 10px 0 14px 22px;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.legal-section li {
  margin-bottom: 8px;
}

/* 教程聚合页 (zhinan.html) */
.guides-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
  margin-top: 36px;
}

.guide-card {
  background: var(--bg-card-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-celestial);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-astral);
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.guide-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-cyan);
  box-shadow: 0 12px 32px rgba(6, 182, 212, 0.25);
}

.guide-tag {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--color-cyan);
  background: rgba(6, 182, 212, 0.12);
  border: 1px solid rgba(6, 182, 212, 0.3);
  padding: 3px 10px;
  border-radius: 999px;
  align-self: flex-start;
  margin-bottom: 12px;
}

.guide-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 10px;
}

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

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

.guide-desc {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 18px;
  flex-grow: 1;
}

.guide-date {
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* 响应式断点 */
@media (max-width: 900px) {
  .scene-grid, .pricing-grid, .benefits-grid {
    grid-template-columns: 1fr;
  }
  .feature-grid, .guides-grid, .support-grid {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .pricing-card.featured {
    transform: none;
  }
  .pricing-card.featured:hover {
    transform: translateY(-4px);
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(12, 18, 34, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border-celestial);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
    gap: 18px;
  }
  .main-nav.open {
    display: flex;
  }
  .nav-toggle {
    display: block;
  }
  .hero-actions {
    flex-direction: column;
    gap: 14px;
  }
  .hero-indicators {
    flex-direction: column;
    gap: 18px;
  }
}