/* 一翻云 1fanyun.top 核心样式表 - 2026 动漫元素 UI 与动效交互系统 */
:root {
  --color-bg: #0b0f19;
  --color-bg-gradient: linear-gradient(180deg, #090d16 0%, #0f172a 40%, #0d1222 100%);
  --color-surface: rgba(18, 24, 43, 0.78);
  --color-surface-hover: rgba(26, 35, 62, 0.88);
  --color-surface-subtle: rgba(30, 41, 59, 0.55);
  --color-border: rgba(99, 102, 241, 0.22);
  --color-border-hover: rgba(129, 140, 248, 0.55);
  --color-text-main: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-text-subtle: #64748b;
  
  /* 动漫核心渐变与霓虹色彩 */
  --color-primary: #3b82f6;
  --color-primary-hover: #60a5fa;
  --color-primary-light: rgba(59, 130, 246, 0.15);
  --color-anime-pink: #f472b6;
  --color-anime-cyan: #38bdf8;
  --color-anime-purple: #8b5cf6;
  --color-anime-gold: #fbbf24;
  --color-recommended: #10b981;
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --max-width: 1140px;
  --article-width: 860px;
  --header-height: 68px;
  
  /* 呼吸灯发光阴影 */
  --glow-primary: 0 0 25px rgba(59, 130, 246, 0.35);
  --glow-accent: 0 0 30px rgba(139, 92, 246, 0.3);
  --glow-sakura: 0 0 20px rgba(244, 114, 182, 0.3);
  --glow-cyan: 0 0 25px rgba(56, 189, 248, 0.35);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background-color: var(--color-bg);
  background-image: var(--color-bg-gradient);
  background-attachment: fixed;
  color: var(--color-text-main);
  line-height: 1.68;
  text-rendering: optimizeLegibility;
  padding-bottom: 74px; /* 移动端吸底 CTA 预留空间 */
  position: relative;
  overflow-x: hidden;
  min-height: 100vh;
}

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

/* 全图动态画布背景（流星、花瓣、微光星系） */
.anime-bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* 全图呼吸氛围光晕 */
.anime-ambient-glow {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  background: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 85% 25%, rgba(244, 114, 182, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(56, 189, 248, 0.09) 0%, transparent 50%);
  animation: ambient-breath 8s ease-in-out infinite alternate;
}

@keyframes ambient-breath {
  0% { opacity: 0.65; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.03); }
  100% { opacity: 0.7; transform: scale(1); }
}

a {
  color: var(--color-anime-cyan);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--color-primary-hover);
  text-shadow: 0 0 8px rgba(56, 189, 248, 0.6);
  text-decoration: none;
}

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

/* 布局容器 */
.site-container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
  position: relative;
  z-index: 2;
}

.article-container {
  width: 100%;
  max-width: var(--article-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
  position: relative;
  z-index: 2;
}

/* 导航栏 - 动漫半透明晶透玻璃 */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(11, 15, 25, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  z-index: 100;
  height: var(--header-height);
}

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

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-text-main);
  letter-spacing: -0.01em;
}

.brand-logo:hover {
  text-decoration: none;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  box-shadow: 0 0 12px rgba(37, 99, 235, 0.4);
  transition: transform 0.3s ease;
}

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

.brand-title {
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 60%, #93c5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

.nav-link {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: color 0.2s ease;
}

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

.nav-link:hover, .nav-link.active {
  color: #ffffff;
  text-decoration: none;
}

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

.header-cta-group {
  display: none;
  align-items: center;
  gap: 12px;
}

@media (min-width: 860px) {
  .site-nav {
    display: flex;
  }
  .header-cta-group {
    display: flex;
  }
}

/* 移动端汉堡菜单 */
.mobile-nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 38px;
  height: 38px;
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 9px;
  cursor: pointer;
}

.mobile-nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text-main);
  transition: all 0.2s ease;
}

@media (min-width: 860px) {
  .mobile-nav-toggle {
    display: none;
  }
}

.mobile-nav-menu {
  display: none;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: rgba(11, 15, 25, 0.96);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  padding: 20px;
  flex-direction: column;
  gap: 14px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.mobile-nav-menu.is-active {
  display: flex;
}

.mobile-nav-menu .nav-link {
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

/* 动漫二次元游戏风格 CTA 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 24px;
  min-height: 44px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:hover {
  text-decoration: none;
}

/* 动漫高能主 CTA 按钮 */
.btn-primary {
  background: linear-gradient(135deg, #2563eb 0%, #4f46e5 50%, #7c3aed 100%);
  color: #ffffff;
  border: 1px solid rgba(165, 180, 252, 0.45);
  box-shadow: 0 0 18px rgba(79, 70, 229, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

/* 动漫光效扫光 (Shimmer Sweep) */
.btn-primary::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -75%;
  width: 50%;
  height: 200%;
  background: linear-gradient(
    60deg,
    transparent 0%,
    rgba(255, 255, 255, 0.3) 50%,
    transparent 100%
  );
  transform: rotate(25deg);
  pointer-events: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1d4ed8 0%, #4338ca 50%, #6d28d9 100%);
  color: #ffffff;
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.75), inset 0 1px 0 rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

.btn-primary:hover::after {
  animation: shimmer-sweep 1.2s ease-in-out infinite;
}

@keyframes shimmer-sweep {
  0% { left: -75%; }
  100% { left: 140%; }
}

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

/* 动漫副 CTA 按钮 */
.btn-secondary {
  background: rgba(18, 24, 43, 0.75);
  backdrop-filter: blur(8px);
  color: #e2e8f0;
  border: 1px solid rgba(56, 189, 248, 0.35);
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.15);
}

.btn-secondary:hover {
  background: rgba(30, 41, 59, 0.9);
  color: #ffffff;
  border-color: var(--color-anime-cyan);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.4);
  transform: translateY(-2px);
}

.btn-large {
  padding: 14px 32px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-block {
  width: 100%;
}

/* Hero 区块 - 动漫星空天际与机甲科技感 */
.hero-section {
  padding: 72px 0 64px;
  text-align: center;
  position: relative;
  border-bottom: 1px solid var(--color-border);
}

.hero-content {
  max-width: 860px;
  margin: 0 auto;
}

.hero-anime-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(129, 140, 248, 0.35);
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-anime-cyan);
  margin-bottom: 20px;
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.2);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-anime-pink);
  box-shadow: 0 0 8px var(--color-anime-pink);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.2); }
}

.hero-title {
  font-size: 2.35rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 50%, #93c5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 30px rgba(59, 130, 246, 0.25);
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.25rem;
  }
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 36px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  justify-content: center;
  align-items: center;
  margin-bottom: 40px;
}

@media (min-width: 480px) {
  .hero-actions {
    flex-direction: row;
    gap: 18px;
  }
}

/* 动漫赛博星轨与全球节点轨迹图示 */
.hero-trajectory-visual {
  width: 100%;
  max-width: 740px;
  margin: 20px auto 40px;
  padding: 16px;
  background: rgba(18, 24, 43, 0.55);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  position: relative;
  overflow: hidden;
}

.trajectory-svg {
  width: 100%;
  height: auto;
  display: block;
}

/* 轨迹能量光流动画 */
.trajectory-line {
  stroke-dasharray: 8, 8;
  animation: line-flow 20s linear infinite;
}

@keyframes line-flow {
  from { stroke-dashoffset: 200; }
  to { stroke-dashoffset: 0; }
}

.trajectory-pulse-node {
  animation: pulse-node 2.5s infinite ease-in-out;
}

@keyframes pulse-node {
  0%, 100% { r: 4; opacity: 0.6; }
  50% { r: 6.5; opacity: 1; }
}

.hero-indicators {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

@media (min-width: 768px) {
  .hero-indicators {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

.indicator-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}

.indicator-desc {
  font-size: 0.85rem;
  color: var(--color-text-subtle);
}

/* 通用章节规范 - 动漫风格晶体卡片 */
.section-block {
  padding: 72px 0;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.section-alt {
  background: rgba(15, 23, 42, 0.45);
}

.section-header {
  text-align: center;
  max-width: 740px;
  margin: 0 auto 48px;
}

.section-heading {
  font-size: 1.95rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.section-summary {
  font-size: 1.02rem;
  color: var(--color-text-muted);
}

/* Features 核心特性 (4张动漫光边卡片) */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

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

@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.feature-card {
  background: var(--color-surface);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.feature-card:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border-hover);
  box-shadow: 0 12px 35px rgba(99, 102, 241, 0.22);
  transform: translateY(-4px);
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--color-anime-cyan);
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.25);
}

.feature-icon-wrap svg {
  width: 26px;
  height: 26px;
}

.feature-audience-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-anime-pink);
  background: rgba(244, 114, 182, 0.12);
  border: 1px solid rgba(244, 114, 182, 0.3);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.62;
}

/* 核心优势 Benefits 模块 */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

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

.benefit-card {
  background: var(--color-surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
  transition: all 0.3s ease;
}

.benefit-card:hover {
  border-color: rgba(56, 189, 248, 0.5);
  box-shadow: 0 8px 30px rgba(56, 189, 248, 0.18);
  transform: translateY(-3px);
}

.benefit-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #ffffff;
}

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

/* 流媒体与 AI 支持模块 */
.support-dual-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .support-dual-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.support-panel {
  background: var(--color-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 30px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.support-panel-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #ffffff;
}

.support-panel-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 22px;
}

.support-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.support-tag-pill {
  font-size: 0.88rem;
  padding: 6px 14px;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: #e2e8f0;
  font-weight: 500;
  transition: all 0.2s ease;
}

.support-tag-pill:hover {
  border-color: var(--color-anime-cyan);
  color: #ffffff;
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.3);
}

/* 使用场景卡 (4张) */
.scenarios-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

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

@media (min-width: 1024px) {
  .scenarios-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.scenario-card {
  background: var(--color-surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all 0.3s ease;
}

.scenario-card:hover {
  border-color: var(--color-anime-pink);
  box-shadow: 0 8px 30px rgba(244, 114, 182, 0.18);
  transform: translateY(-3px);
}

.scenario-title {
  font-size: 1.18rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 6px;
}

.scenario-device {
  font-size: 0.82rem;
  color: var(--color-anime-cyan);
  font-weight: 600;
  margin-bottom: 10px;
}

.scenario-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.58;
}

/* 定价卡模块 (3档，动漫机甲护盾风格，突出热门中档) */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  align-items: stretch;
}

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

.pricing-card {
  background: var(--color-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 34px 26px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.pricing-card:hover {
  transform: translateY(-4px);
}

.pricing-card.is-popular {
  background: rgba(22, 30, 54, 0.9);
  border-color: rgba(99, 102, 241, 0.65);
  box-shadow: 0 10px 40px rgba(99, 102, 241, 0.28), inset 0 0 20px rgba(99, 102, 241, 0.08);
}

.popular-badge {
  position: absolute;
  top: -13px;
  right: 22px;
  background: linear-gradient(135deg, var(--color-anime-pink), #ec4899);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 3px 12px;
  border-radius: 14px;
  box-shadow: 0 0 14px rgba(244, 114, 182, 0.6);
  letter-spacing: 0.02em;
}

.pricing-audience {
  font-size: 0.85rem;
  color: var(--color-anime-cyan);
  font-weight: 600;
  margin-bottom: 8px;
}

.pricing-name {
  font-size: 1.45rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 12px;
}

.pricing-price-wrap {
  display: flex;
  align-items: baseline;
  margin-bottom: 16px;
}

.pricing-currency {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-anime-pink);
}

.pricing-amount {
  font-size: 2.45rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.02em;
}

.pricing-unit {
  font-size: 0.9rem;
  color: var(--color-text-subtle);
  margin-left: 6px;
}

.pricing-summary {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
  flex-grow: 1;
}

.pricing-feature-item {
  font-size: 0.92rem;
  color: #e2e8f0;
  margin-bottom: 11px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.feature-check {
  color: var(--color-recommended);
  font-weight: 800;
  text-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
}

/* FAQ 问答模块 (手风琴) */
.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--color-surface);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.25s ease;
}

.faq-item.is-open {
  border-color: rgba(99, 102, 241, 0.5);
  box-shadow: 0 4px 25px rgba(99, 102, 241, 0.18);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 18px 22px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 48px;
}

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

.faq-icon {
  font-size: 1.3rem;
  color: var(--color-anime-cyan);
  transition: transform 0.25s ease;
}

.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
  color: var(--color-anime-pink);
}

.faq-answer {
  display: none;
  padding: 0 22px 22px;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.faq-item.is-open .faq-answer {
  display: block;
}

/* Final CTA 区块 */
.final-cta-section {
  padding: 72px 0;
  background: rgba(18, 24, 43, 0.65);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta-card {
  max-width: 760px;
  margin: 0 auto;
}

.final-cta-title {
  font-size: 2.15rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 16px;
  line-height: 1.3;
}

.final-cta-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

/* 页脚 */
.site-footer {
  background: rgba(11, 15, 25, 0.95);
  padding: 48px 0 32px;
  border-top: 1px solid var(--color-border);
}

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

.footer-nav-bar a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.footer-nav-bar a:hover {
  color: #ffffff;
}

.footer-disclosure-text {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-subtle);
  margin-bottom: 16px;
}

.footer-copyright {
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-text-subtle);
}

/* 移动端吸底 CTA */
.mobile-sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(15, 23, 42, 0.96);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--color-border);
  padding: 10px 16px;
  z-index: 99;
  display: none;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
  transform: translateY(100%);
  transition: transform 0.25s ease;
}

.mobile-sticky-cta.is-visible {
  display: flex;
  transform: translateY(0);
}

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

.sticky-info-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: #ffffff;
}

.sticky-info-desc {
  font-size: 0.75rem;
  color: var(--color-anime-cyan);
}

/* 动漫可拖动互动组件 (一翻云星际引航宠) */
.anime-interactive-mascot {
  position: fixed;
  bottom: 90px;
  right: 24px;
  z-index: 98;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: grab;
  user-select: none;
  touch-action: none;
  transition: transform 0.1s ease;
}

.anime-interactive-mascot.is-dragging {
  cursor: grabbing;
  opacity: 0.9;
  transform: scale(1.08);
}

.mascot-avatar {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2563eb, #ec4899);
  padding: 3px;
  box-shadow: 0 0 20px rgba(236, 72, 153, 0.45), 0 0 35px rgba(37, 99, 235, 0.35);
  animation: mascot-float 3s ease-in-out infinite;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

@keyframes mascot-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

.mascot-avatar svg {
  width: 100%;
  height: 100%;
  border-radius: 50%;
}

.mascot-speech-bubble {
  position: absolute;
  bottom: 64px;
  right: 0;
  width: 190px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(129, 140, 248, 0.5);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-size: 0.8rem;
  color: #ffffff;
  line-height: 1.45;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  pointer-events: none;
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.25s ease;
}

.anime-interactive-mascot:hover .mascot-speech-bubble,
.anime-interactive-mascot.show-bubble .mascot-speech-bubble {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mascot-toggle-btn {
  font-size: 0.72rem;
  color: var(--color-anime-cyan);
  background: rgba(30, 41, 59, 0.8);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 2px 6px;
  border-radius: 4px;
  cursor: pointer;
  margin-top: 6px;
  display: inline-block;
}

/* 文章页面排版规范 (动漫夜空晶透排版) */
.article-header {
  padding: 48px 0 28px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 32px;
}

.article-breadcrumb {
  font-size: 0.85rem;
  color: var(--color-text-subtle);
  margin-bottom: 16px;
}

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

.article-breadcrumb a:hover {
  color: var(--color-anime-cyan);
}

.article-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.32;
  color: #ffffff;
  margin-bottom: 16px;
}

@media (min-width: 768px) {
  .article-title {
    font-size: 2.35rem;
  }
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--color-text-subtle);
}

.article-content {
  font-size: 1.05rem;
  line-height: 1.85;
  color: #e2e8f0;
}

.article-lead {
  font-size: 1.15rem;
  line-height: 1.75;
  color: #cbd5e1;
  background: rgba(18, 24, 43, 0.75);
  backdrop-filter: blur(12px);
  border-left: 4px solid var(--color-primary);
  padding: 18px 22px;
  margin-bottom: 34px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: #ffffff;
  margin-top: 42px;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-top: 30px;
  margin-bottom: 14px;
}

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

.article-content ul, .article-content ol {
  margin-bottom: 22px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 26px 0;
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background: rgba(18, 24, 43, 0.7);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.article-table th, .article-table td {
  border: 1px solid var(--color-border);
  padding: 13px 18px;
  text-align: left;
}

.article-table th {
  background: rgba(30, 41, 59, 0.85);
  font-weight: 700;
  color: #ffffff;
}

.article-table tr:hover {
  background: rgba(255, 255, 255, 0.04);
}

/* 文末 CTA 模块 */
.article-cta-box {
  background: rgba(18, 24, 43, 0.85);
  backdrop-filter: blur(14px);
  border: 1px solid var(--color-border-hover);
  border-radius: var(--radius-md);
  padding: 32px;
  margin: 44px 0;
  text-align: center;
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.2);
}

.article-cta-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 10px;
}

.article-cta-desc {
  font-size: 0.96rem;
  color: var(--color-text-muted);
  margin-bottom: 22px;
}

/* 站内互链模块 */
.article-related-links {
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin: 36px 0;
}

.related-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: #ffffff;
}

.related-list {
  list-style: none;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.related-list li a {
  font-size: 0.95rem;
  font-weight: 500;
}

/* 合规页样式 */
.page-header {
  padding: 48px 0 24px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 32px;
}

.page-title {
  font-size: 2.1rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 10px;
}

.page-meta {
  font-size: 0.88rem;
  color: var(--color-text-subtle);
}

.legal-section {
  background: var(--color-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 34px;
  margin-bottom: 32px;
}

.legal-section h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: #ffffff;
  margin-top: 26px;
  margin-bottom: 12px;
}

.legal-section h2:first-of-type {
  margin-top: 0;
}

.legal-section p {
  font-size: 0.96rem;
  color: var(--color-text-muted);
  line-height: 1.72;
  margin-bottom: 16px;
}

.legal-section ul {
  padding-left: 20px;
  margin-bottom: 16px;
  color: var(--color-text-muted);
  font-size: 0.96rem;
}

.legal-section li {
  margin-bottom: 6px;
}

/* 指南卡片列表 */
.guides-catalog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

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

@media (min-width: 960px) {
  .guides-catalog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.guide-catalog-card {
  background: var(--color-surface);
  backdrop-filter: blur(14px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.guide-catalog-card:hover {
  border-color: rgba(99, 102, 241, 0.6);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.25);
  transform: translateY(-4px);
}

.guide-thumb-wrap {
  width: 100%;
  height: 140px;
  background: rgba(30, 41, 59, 0.5);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-anime-cyan);
}

.guide-thumb-wrap svg {
  width: 56px;
  height: 56px;
  filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.4));
}

.guide-card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.guide-card-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--color-text-subtle);
  margin-bottom: 8px;
}

.guide-card-title {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #ffffff;
  line-height: 1.4;
}

.guide-card-summary {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.62;
  margin-bottom: 18px;
  flex-grow: 1;
}

.guide-card-link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-anime-cyan);
  display: inline-flex;
  align-items: center;
}

/* 无障碍：系统减弱动画模式适配 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .anime-bg-canvas {
    display: none !important;
  }
}