/* ==========================================================================
   次元链接（Cylink） (cylink.sbs) 动漫幻彩主题样式表
   设计风格：二次元动漫元素 / 鲜明绚丽星空色系 / 全图呼吸灯 / 动态流星雨 / 交互光效
   技术规范：纯原生 CSS3 / 移动端优先 / 高性能无Web字体 / 60FPS 硬件加速
   ========================================================================== */

:root {
  /* 鲜明二次元绚丽调色板 */
  --color-bg: #090a1a;
  --color-bg-alt: #0e112a;
  --color-surface: rgba(18, 21, 48, 0.72);
  --color-surface-card: rgba(24, 28, 64, 0.75);
  --color-surface-hover: rgba(36, 42, 92, 0.85);
  --color-surface-muted: rgba(255, 255, 255, 0.05);

  --color-text-main: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-text-dim: #64748b;

  --color-border: rgba(139, 92, 246, 0.22);
  --color-border-dark: rgba(139, 92, 246, 0.35);
  --color-border-glow: rgba(0, 240, 255, 0.45);

  /* 动漫标志性强调色 */
  --color-accent-pink: #ff2a85;
  --color-accent-pink-soft: rgba(255, 42, 133, 0.15);
  --color-accent-cyan: #00f0ff;
  --color-accent-cyan-soft: rgba(0, 240, 255, 0.12);
  --color-accent-purple: #8b5cf6;
  --color-accent-gold: #ffd166;
  --color-accent-amber: #f59e0b;

  --color-accent: #00f0ff;
  --color-accent-hover: #38bdf8;
  --color-accent-soft: rgba(0, 240, 255, 0.12);
  --color-accent-text: #00f0ff;

  --color-badge-bg: rgba(255, 42, 133, 0.18);
  --color-badge-text: #ff6097;
  --color-tag-bg: rgba(30, 35, 78, 0.8);

  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --max-width: 1140px;
  --max-width-narrow: 840px;
  --header-height: 68px;

  --glow-pink: 0 0 25px rgba(255, 42, 133, 0.45);
  --glow-cyan: 0 0 25px rgba(0, 240, 255, 0.45);
  --glow-purple: 0 0 30px rgba(139, 92, 246, 0.45);
}

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

html {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text-main);
  background-color: var(--color-bg);
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-bottom: 72px; /* 移动端吸底保留安全距离 */
  position: relative;
  background-color: var(--color-bg);
  color: var(--color-text-main);
  overflow-x: hidden;
  background-image: 
    radial-gradient(ellipse 90% 60% at 50% -20%, rgba(121, 40, 202, 0.28), transparent 70%),
    radial-gradient(ellipse 70% 50% at 100% 40%, rgba(0, 240, 255, 0.16), transparent 60%),
    radial-gradient(ellipse 70% 60% at 0% 80%, rgba(255, 42, 133, 0.16), transparent 70%);
  background-attachment: fixed;
}

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

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

a:hover {
  color: var(--color-accent-pink);
  text-shadow: 0 0 10px rgba(255, 42, 133, 0.5);
}

img, svg {
  vertical-align: middle;
  max-width: 100%;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
}

/* ==========================================================================
   全图呼吸灯 (Full-screen Breathing Ambient Glow)
   ========================================================================== */
.ambient-breathing-layer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.breathing-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(85px);
  will-change: transform, opacity;
  animation: breathingPulse 10s ease-in-out infinite alternate;
}

.breathing-orb-1 {
  width: 65vw;
  height: 65vw;
  top: -20vw;
  left: -15vw;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.38) 0%, rgba(255, 42, 133, 0.15) 50%, transparent 70%);
  animation-duration: 9s;
}

.breathing-orb-2 {
  width: 55vw;
  height: 55vw;
  top: 35vh;
  right: -20vw;
  background: radial-gradient(circle, rgba(0, 240, 255, 0.3) 0%, rgba(139, 92, 246, 0.12) 50%, transparent 70%);
  animation-duration: 12s;
  animation-delay: -3.5s;
}

.breathing-orb-3 {
  width: 70vw;
  height: 70vw;
  bottom: -25vw;
  left: 15vw;
  background: radial-gradient(circle, rgba(255, 42, 133, 0.32) 0%, rgba(255, 209, 102, 0.12) 50%, transparent 70%);
  animation-duration: 11s;
  animation-delay: -6s;
}

@keyframes breathingPulse {
  0% {
    transform: scale(0.92) translate3d(0, 0, 0);
    opacity: 0.45;
    filter: blur(75px);
  }
  50% {
    transform: scale(1.08) translate3d(25px, -20px, 0);
    opacity: 0.75;
    filter: blur(100px);
  }
  100% {
    transform: scale(0.96) translate3d(-20px, 25px, 0);
    opacity: 0.52;
    filter: blur(85px);
  }
}

/* 呼吸灯模式2：极光幻境 */
body.mode-aurora .breathing-orb-1 {
  background: radial-gradient(circle, rgba(0, 240, 255, 0.45) 0%, rgba(16, 185, 129, 0.2) 60%, transparent 70%);
}
body.mode-aurora .breathing-orb-2 {
  background: radial-gradient(circle, rgba(168, 85, 247, 0.35) 0%, rgba(0, 240, 255, 0.15) 60%, transparent 70%);
}
body.mode-aurora .breathing-orb-3 {
  background: radial-gradient(circle, rgba(56, 189, 248, 0.4) 0%, rgba(236, 72, 153, 0.15) 60%, transparent 70%);
}

/* 呼吸灯模式3：樱花星云 */
body.mode-sakura .breathing-orb-1 {
  background: radial-gradient(circle, rgba(255, 42, 133, 0.45) 0%, rgba(244, 63, 94, 0.2) 60%, transparent 70%);
}
body.mode-sakura .breathing-orb-2 {
  background: radial-gradient(circle, rgba(251, 113, 133, 0.35) 0%, rgba(255, 209, 102, 0.2) 60%, transparent 70%);
}
body.mode-sakura .breathing-orb-3 {
  background: radial-gradient(circle, rgba(168, 85, 247, 0.4) 0%, rgba(255, 42, 133, 0.2) 60%, transparent 70%);
}

/* ==========================================================================
   动态背景 Canvas (星星掉落 / 流星雨 / 闪烁星芒)
   ========================================================================== */
#animeCanvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 1;
}

/* 内容层置于动效之上 */
header, main, footer, .mobile-sticky-cta, .anime-control-dock {
  position: relative;
  z-index: 2;
}

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

.container-narrow {
  width: 100%;
  max-width: var(--max-width-narrow);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* ==========================================================================
   顶部导航 (Glassmorphism + Neon Border)
   ========================================================================== */
.site-header {
  height: var(--header-height);
  background-color: rgba(9, 10, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(139, 92, 246, 0.25);
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.4), 0 1px 0 rgba(0, 240, 255, 0.15);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: all 0.3s ease;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 0.02em;
  text-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
  transition: transform 0.2s ease;
}

.brand-logo:hover {
  transform: scale(1.03);
  color: #ffffff;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
  transition: transform 0.3s ease;
}

.brand-logo:hover .brand-icon {
  transform: rotate(8deg);
  box-shadow: 0 0 20px rgba(255, 42, 133, 0.6);
}

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

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
  position: relative;
  padding: 6px 0;
  transition: all 0.25s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #ff2a85, #00f0ff);
  transition: all 0.25s ease;
  transform: translateX(-50%);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.8);
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
  text-shadow: 0 0 12px rgba(0, 240, 255, 0.6);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(139, 92, 246, 0.35);
  border-radius: 8px;
  color: #ffffff;
  padding: 6px;
  transition: all 0.2s ease;
}

.mobile-menu-btn:hover {
  background: rgba(0, 240, 255, 0.15);
  border-color: #00f0ff;
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.4);
}

@media (min-width: 769px) {
  .header-nav {
    display: flex;
  }
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-nav-drawer {
  display: none;
  flex-direction: column;
  background-color: rgba(9, 10, 26, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(139, 92, 246, 0.3);
  padding: 16px 20px 24px;
  gap: 16px;
  box-shadow: 0 20px 30px rgba(0, 0, 0, 0.6);
}

.mobile-nav-drawer.open {
  display: flex;
}

.mobile-nav-link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-main);
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: all 0.2s ease;
}

.mobile-nav-link:hover {
  color: #00f0ff;
  padding-left: 8px;
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

/* ==========================================================================
   CTA 按钮全套设计 (Static + Dynamic Laser Sweep + Glow Pulse)
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: 9999px;
  text-align: center;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  letter-spacing: 0.02em;
  position: relative;
  overflow: hidden;
  user-select: none;
}

/* 核心主 CTA 按钮 (Anime Cyber Gradient + 光芒扫掠 + 呼吸微晕) */
.btn-primary {
  background: linear-gradient(135deg, #ff2a85 0%, #8b5cf6 50%, #00f0ff 100%);
  background-size: 200% 200%;
  color: #ffffff !important;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 0 20px rgba(255, 42, 133, 0.45), 0 4px 15px rgba(0, 0, 0, 0.35);
  animation: ctaGradientShift 6s ease infinite alternate;
}

/* 动态光束扫掠 (Laser Shimmer) */
.btn-primary::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    60deg,
    transparent 35%,
    rgba(255, 255, 255, 0.35) 47%,
    rgba(255, 255, 255, 0.8) 50%,
    rgba(255, 255, 255, 0.35) 53%,
    transparent 65%
  );
  transform: rotate(30deg);
  animation: ctaLaserSweep 3.2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
  pointer-events: none;
}

@keyframes ctaLaserSweep {
  0% { transform: translateX(-150%) rotate(30deg); }
  35% { transform: translateX(150%) rotate(30deg); }
  100% { transform: translateX(150%) rotate(30deg); }
}

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

.btn-primary:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 0 35px rgba(0, 240, 255, 0.7), 0 0 25px rgba(255, 42, 133, 0.6), 0 8px 25px rgba(0, 0, 0, 0.4);
  border-color: #ffffff;
}

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

/* 动漫星芒装饰 */
.btn-sparkle {
  display: inline-block;
  color: var(--color-accent-gold);
  margin: 0 4px;
  animation: sparkleSpin 4s linear infinite;
  text-shadow: 0 0 8px #ffd166;
}

@keyframes sparkleSpin {
  0% { transform: scale(0.9) rotate(0deg); opacity: 0.85; }
  50% { transform: scale(1.25) rotate(180deg); opacity: 1; }
  100% { transform: scale(0.9) rotate(360deg); opacity: 0.85; }
}

/* 次要轮廓 CTA 按钮 (Anime Starlight Glass) */
.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  border: 1px solid rgba(0, 240, 255, 0.45);
  backdrop-filter: blur(10px);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.15), inset 0 0 10px rgba(0, 240, 255, 0.08);
}

.btn-outline:hover {
  background: rgba(0, 240, 255, 0.15);
  color: #00f0ff;
  border-color: #00f0ff;
  box-shadow: 0 0 25px rgba(0, 240, 255, 0.45), inset 0 0 15px rgba(0, 240, 255, 0.2);
  transform: translateY(-2px);
}

.btn-outline:active {
  transform: translateY(0);
}

.btn-large {
  padding: 13px 32px;
  font-size: 1.05rem;
}

.btn-full {
  width: 100%;
}

/* ==========================================================================
   Hero 模块 (二次元星芒徽标 + 渐变流光大标题)
   ========================================================================== */
.hero-section {
  padding: 68px 0 56px;
  border-bottom: 1px solid rgba(139, 92, 246, 0.2);
  position: relative;
}

.hero-content {
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

/* 二次元星空徽章 */
.hero-anime-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 20px;
  background: rgba(255, 42, 133, 0.14);
  border: 1px solid rgba(255, 42, 133, 0.4);
  border-radius: 9999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: #ff6097;
  margin-bottom: 24px;
  box-shadow: 0 0 20px rgba(255, 42, 133, 0.25);
  animation: badgeAnimeGlow 3.5s ease-in-out infinite alternate;
}

@keyframes badgeAnimeGlow {
  0% {
    box-shadow: 0 0 15px rgba(255, 42, 133, 0.3);
    border-color: rgba(255, 42, 133, 0.4);
    color: #ff6097;
  }
  100% {
    box-shadow: 0 0 25px rgba(0, 240, 255, 0.45);
    border-color: rgba(0, 240, 255, 0.55);
    color: #00f0ff;
  }
}

.hero-title {
  font-size: 2.3rem;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
  background: linear-gradient(135deg, #ffffff 15%, #00f0ff 65%, #ff2a85 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 40px rgba(0, 240, 255, 0.3);
}

@media (min-width: 769px) {
  .hero-title {
    font-size: 3.1rem;
  }
}

.hero-subtitle {
  font-size: 1.12rem;
  line-height: 1.7;
  color: #cbd5e1;
  margin-bottom: 32px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  gap: 14px;
  justify-content: center;
  align-items: center;
  margin-bottom: 36px;
}

@media (min-width: 481px) {
  .hero-cta-group {
    flex-direction: row;
    gap: 18px;
  }
}

.hero-trust-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 18px 30px;
  font-size: 0.9rem;
  color: #94a3b8;
  padding-top: 24px;
  border-top: 1px dashed rgba(139, 92, 246, 0.25);
}

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

.trust-icon {
  color: var(--color-accent-cyan);
  font-weight: 800;
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.6);
}

/* ==========================================================================
   区块通用结构与标题排版
   ========================================================================== */
.section-padding {
  padding: 68px 0;
  border-bottom: 1px solid rgba(139, 92, 246, 0.18);
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 44px;
}

.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 14px;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, #ffffff 40%, #00f0ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.section-desc {
  font-size: 1.02rem;
  color: #94a3b8;
  line-height: 1.65;
}

/* ==========================================================================
   卡片通用 3D 微倾斜 & 动态探照灯光晕 (Interactive Spotlight)
   ========================================================================== */
.feature-box, .pricing-card, .matrix-card, .scenario-card, .guide-card {
  background: var(--color-surface);
  border: 1px solid rgba(139, 92, 246, 0.25);
  border-radius: 16px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

/* 鼠标跟随探照灯层 */
.feature-box::after, .pricing-card::after, .matrix-card::after, .scenario-card::after, .guide-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(400px circle at var(--spotlight-x, -200px) var(--spotlight-y, -200px), rgba(0, 240, 255, 0.14), transparent 50%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.feature-box:hover::after, .pricing-card:hover::after, .matrix-card:hover::after, .scenario-card:hover::after, .guide-card:hover::after {
  opacity: 1;
}

.feature-box:hover, .scenario-card:hover, .guide-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 240, 255, 0.55);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(0, 240, 255, 0.3);
}

/* ==========================================================================
   特性网格 (Features Grid)
   ========================================================================== */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 641px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.feature-box {
  padding: 28px;
}

.feature-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent-cyan);
  background: rgba(0, 240, 255, 0.12);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 3px 10px;
  border-radius: 9999px;
  margin-bottom: 14px;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

.feature-heading {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

.feature-text {
  font-size: 0.95rem;
  color: #94a3b8;
  line-height: 1.65;
}

/* ==========================================================================
   流媒体与 AI 支持矩阵
   ========================================================================== */
.service-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 769px) {
  .service-matrix {
    grid-template-columns: 1fr 1fr;
  }
}

.matrix-card {
  padding: 32px 28px;
}

.matrix-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 10px;
}

.matrix-desc {
  font-size: 0.95rem;
  color: #94a3b8;
  margin-bottom: 22px;
  line-height: 1.6;
}

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

.service-tag {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(139, 92, 246, 0.35);
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: #f1f5f9;
  transition: all 0.25s ease;
}

.service-tag:hover {
  background: rgba(255, 42, 133, 0.2);
  border-color: #ff2a85;
  color: #ffffff;
  box-shadow: 0 0 15px rgba(255, 42, 133, 0.4);
  transform: translateY(-2px);
}

/* ==========================================================================
   使用场景卡片
   ========================================================================== */
.scenarios-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 769px) {
  .scenarios-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.scenario-card {
  padding: 28px;
  display: flex;
  flex-direction: column;
}

.scenario-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.scenario-device {
  font-size: 0.85rem;
  color: var(--color-accent-pink);
  background: rgba(255, 42, 133, 0.12);
  border: 1px solid rgba(255, 42, 133, 0.3);
  padding: 4px 10px;
  border-radius: 6px;
  align-self: flex-start;
  margin-bottom: 16px;
  font-weight: 600;
}

.scenario-desc {
  font-size: 0.93rem;
  color: #94a3b8;
  line-height: 1.65;
}

/* ==========================================================================
   架构与协议优势规格表 (Cyber Table)
   ========================================================================== */
.specs-table-wrapper {
  overflow-x: auto;
  background: var(--color-surface);
  border: 1px solid rgba(139, 92, 246, 0.25);
  border-radius: 16px;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.specs-table th, .specs-table td {
  padding: 18px 24px;
  border-bottom: 1px solid rgba(139, 92, 246, 0.18);
}

.specs-table th {
  background: rgba(30, 34, 76, 0.7);
  font-weight: 700;
  color: #00f0ff;
  letter-spacing: 0.02em;
}

.specs-table tr:hover td {
  background: rgba(0, 240, 255, 0.04);
}

.specs-table tr:last-child td {
  border-bottom: none;
}

/* ==========================================================================
   定价模块 (Pricing Grid & Featured Highlight)
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: stretch;
}

@media (min-width: 769px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pricing-card {
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* 推荐档位 (Anime Sakura Neon Highlight) */
.pricing-card.featured {
  border: 2px solid #ff2a85;
  background: rgba(28, 24, 66, 0.88);
  box-shadow: 0 0 35px rgba(255, 42, 133, 0.35), 0 12px 35px rgba(0, 0, 0, 0.5);
  transform: scale(1.02);
}

@media (max-width: 768px) {
  .pricing-card.featured {
    transform: none;
  }
}

.pricing-card.featured:hover {
  border-color: #00f0ff;
  box-shadow: 0 0 45px rgba(0, 240, 255, 0.45), 0 0 30px rgba(255, 42, 133, 0.4);
}

.featured-flag {
  position: absolute;
  top: -14px;
  right: 24px;
  background: linear-gradient(135deg, #ff2a85 0%, #8b5cf6 100%);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 14px;
  border-radius: 9999px;
  letter-spacing: 0.05em;
  box-shadow: 0 0 18px rgba(255, 42, 133, 0.65);
}

.plan-target {
  font-size: 0.85rem;
  font-weight: 600;
  color: #94a3b8;
  margin-bottom: 8px;
}

.plan-name {
  font-size: 1.5rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 18px;
}

.plan-price-box {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(139, 92, 246, 0.2);
}

.price-currency {
  font-size: 1.25rem;
  font-weight: 700;
  color: #00f0ff;
  margin-right: 2px;
}

.price-number {
  font-size: 2.6rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.03em;
  text-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
}

.price-cycle {
  font-size: 0.95rem;
  color: #94a3b8;
  margin-left: 4px;
}

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

.plan-features-list li {
  font-size: 0.93rem;
  color: #cbd5e1;
  padding: 9px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px dashed rgba(139, 92, 246, 0.16);
}

.plan-features-list li:last-child {
  border-bottom: none;
}

.plan-features-list .check-icon {
  color: var(--color-accent-cyan);
  font-weight: 800;
  flex-shrink: 0;
  text-shadow: 0 0 10px rgba(0, 240, 255, 0.6);
}

/* ==========================================================================
   FAQ 常见问题手风琴
   ========================================================================== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--color-surface);
  border: 1px solid rgba(139, 92, 246, 0.22);
  border-radius: 14px;
  overflow: hidden;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all 0.25s ease;
}

.faq-item:hover {
  border-color: rgba(0, 240, 255, 0.4);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
}

.faq-icon {
  font-size: 1.3rem;
  color: var(--color-accent-cyan);
  transition: transform 0.25s ease;
  font-weight: 700;
}

.faq-item.active {
  border-color: rgba(255, 42, 133, 0.5);
  box-shadow: 0 0 20px rgba(255, 42, 133, 0.2);
}

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

.faq-answer {
  display: none;
  padding: 0 24px 22px;
  font-size: 0.96rem;
  color: #94a3b8;
  line-height: 1.7;
}

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

/* ==========================================================================
   Final CTA 最终转化模块
   ========================================================================== */
.final-cta-section {
  padding: 80px 0;
  border-bottom: 1px solid rgba(139, 92, 246, 0.2);
  text-align: center;
  position: relative;
}

.final-cta-box {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 32px;
  background: rgba(20, 24, 58, 0.75);
  border: 1px solid rgba(0, 240, 255, 0.35);
  border-radius: 24px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.2), 0 10px 40px rgba(0, 0, 0, 0.5);
}

.final-cta-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #ffffff 30%, #00f0ff 70%, #ff2a85 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.final-cta-desc {
  font-size: 1.1rem;
  color: #cbd5e1;
  margin-bottom: 32px;
  line-height: 1.6;
}

/* ==========================================================================
   文章与合规页面排版
   ========================================================================== */
.article-header {
  padding: 48px 0 28px;
  border-bottom: 1px solid rgba(139, 92, 246, 0.2);
  margin-bottom: 36px;
}

.breadcrumb-nav {
  font-size: 0.9rem;
  color: #94a3b8;
  margin-bottom: 18px;
}

.breadcrumb-nav a {
  color: #94a3b8;
}

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

.article-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.35;
  color: #ffffff;
  margin-bottom: 18px;
  background: linear-gradient(135deg, #ffffff 40%, #00f0ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.9rem;
  color: #94a3b8;
}

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

.article-content h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #ffffff;
  margin-top: 44px;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(139, 92, 246, 0.25);
  text-shadow: 0 0 15px rgba(0, 240, 255, 0.25);
}

.article-content h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #00f0ff;
  margin-top: 32px;
  margin-bottom: 14px;
}

.article-content p {
  margin-bottom: 22px;
}

.article-content ul, .article-content ol {
  margin-bottom: 26px;
  padding-left: 26px;
}

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

.article-content blockquote {
  border-left: 4px solid var(--color-accent-pink);
  padding: 16px 24px;
  background: rgba(255, 42, 133, 0.08);
  border-radius: 0 8px 8px 0;
  margin-bottom: 26px;
  color: #cbd5e1;
  font-style: normal;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 28px;
  font-size: 0.95rem;
  background: var(--color-surface);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.article-content th, .article-content td {
  padding: 14px 18px;
  border: 1px solid rgba(139, 92, 246, 0.15);
}

.article-content th {
  background: rgba(30, 34, 76, 0.7);
  color: #00f0ff;
  font-weight: 700;
}

.article-cta-box {
  background: rgba(25, 29, 68, 0.85);
  border: 1px solid rgba(0, 240, 255, 0.35);
  border-left: 5px solid var(--color-accent-cyan);
  border-radius: 14px;
  padding: 28px;
  margin: 44px 0;
  text-align: center;
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.15);
}

.article-cta-box h3 {
  font-size: 1.35rem;
  margin-bottom: 10px;
  color: #ffffff;
}

.article-cta-box p {
  font-size: 0.96rem;
  color: #94a3b8;
  margin-bottom: 20px;
}

.internal-links-box {
  background: var(--color-surface);
  border: 1px solid rgba(139, 92, 246, 0.25);
  border-radius: 14px;
  padding: 26px;
  margin-top: 44px;
}

.internal-links-box h4 {
  font-size: 1.15rem;
  margin-bottom: 16px;
  color: #ffffff;
}

.internal-links-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.internal-links-list li {
  margin-bottom: 0;
}

/* 指南导航卡片网格 */
.guides-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 48px;
}

@media (min-width: 641px) {
  .guides-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .guides-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.guide-card {
  padding: 26px;
  display: flex;
  flex-direction: column;
}

.guide-category {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent-cyan);
  background: rgba(0, 240, 255, 0.12);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 2px 10px;
  border-radius: 9999px;
  align-self: flex-start;
  margin-bottom: 14px;
}

.guide-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.45;
}

.guide-title a {
  color: #ffffff;
}

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

.guide-excerpt {
  font-size: 0.93rem;
  color: #94a3b8;
  line-height: 1.65;
  margin-bottom: 20px;
  flex-grow: 1;
}

.guide-footer {
  font-size: 0.84rem;
  color: #64748b;
  display: flex;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid rgba(139, 92, 246, 0.18);
}

/* ==========================================================================
   页脚 (Footer)
   ========================================================================== */
.site-footer {
  background-color: rgba(7, 8, 20, 0.95);
  border-top: 1px solid rgba(139, 92, 246, 0.25);
  padding: 56px 0 32px;
  margin-top: auto;
  box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.5);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  margin-bottom: 44px;
}

@media (min-width: 641px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-brand-desc {
  font-size: 0.93rem;
  color: #94a3b8;
  line-height: 1.65;
  margin-top: 14px;
  max-width: 380px;
}

.footer-heading {
  font-size: 0.98rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 18px;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links-list a {
  font-size: 0.92rem;
  color: #94a3b8;
}

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

.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid rgba(139, 92, 246, 0.18);
  font-size: 0.88rem;
  color: #64748b;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  text-align: center;
}

@media (min-width: 641px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ==========================================================================
   移动端吸底 CTA
   ========================================================================== */
.mobile-sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(9, 10, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(0, 240, 255, 0.3);
  padding: 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  z-index: 99;
  box-shadow: 0 -4px 25px rgba(0, 0, 0, 0.6);
}

@media (min-width: 769px) {
  .mobile-sticky-cta {
    display: none;
  }
}

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

.sticky-cta-desc {
  font-size: 0.78rem;
  color: #94a3b8;
}

/* ==========================================================================
   可互动动效控制坞 (Interactive Anime Control Dock)
   ========================================================================== */
.anime-control-dock {
  position: fixed;
  right: 20px;
  bottom: 84px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 98;
}

@media (min-width: 769px) {
  .anime-control-dock {
    bottom: 24px;
  }
}

.dock-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(18, 22, 54, 0.88);
  border: 1px solid rgba(0, 240, 255, 0.4);
  border-radius: 9999px;
  color: #ffffff;
  font-size: 0.82rem;
  font-weight: 600;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4), 0 0 12px rgba(0, 240, 255, 0.2);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.dock-btn:hover {
  background: rgba(255, 42, 133, 0.25);
  border-color: #ff2a85;
  box-shadow: 0 6px 20px rgba(255, 42, 133, 0.4);
  transform: translateY(-2px) scale(1.05);
}

.dock-btn:active {
  transform: scale(0.95);
}

.dock-icon {
  font-size: 1.05rem;
}

.dock-toast {
  position: fixed;
  bottom: 140px;
  right: 20px;
  background: rgba(9, 10, 26, 0.95);
  border: 1px solid rgba(0, 240, 255, 0.5);
  padding: 10px 18px;
  border-radius: 9999px;
  font-size: 0.85rem;
  color: #00f0ff;
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease;
  pointer-events: none;
  z-index: 101;
}

.dock-toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   交互式点击星芒与光斑粒子样式 (Interactive Click Burst)
   ========================================================================== */
.click-particle {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  user-select: none;
  font-size: 1rem;
  transform: translate(-50%, -50%);
  animation: particleBurst 0.85s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

@keyframes particleBurst {
  0% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(0.5) rotate(0deg);
  }
  100% {
    opacity: 0;
    transform: translate(calc(-50% + var(--dx)), calc(-50% + var(--dy))) scale(1.4) rotate(var(--rot));
  }
}

/* 无障碍：减少动效模式 */
@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  #animeCanvas, .breathing-orb {
    display: none !important;
  }
}