/* ====================================================================
   Now加速专线机场 官方样式表 - 幻樱灵境 · 动漫次元与青空结界 (Celeste Sakura & Runic UI)
   ==================================================================== */

:root {
  /* 基础与主题色阶 (幻樱青夜色系) */
  --bg-deep: #080c16;
  --bg-surface: #0f172a;
  --bg-glass: rgba(15, 23, 42, 0.72);
  --bg-glass-hover: rgba(30, 41, 59, 0.85);
  --border-glass: rgba(56, 189, 248, 0.22);
  --border-glass-hover: rgba(244, 114, 182, 0.55);
  --border-accent: rgba(129, 140, 248, 0.35);

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

  --cyan-core: #38bdf8;
  --sakura-pink: #f472b6;
  --rune-purple: #a855f7;
  --glow-iris: #818cf8;
  --success-glow: #10b981;

  --btn-gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 50%, #db2777 100%);
  --btn-gradient-hover: linear-gradient(135deg, #1d4ed8 0%, #6d28d9 50%, #be185d 100%);

  --shadow-glow-cyan: 0 0 20px -3px rgba(56, 189, 248, 0.35);
  --shadow-glow-pink: 0 0 25px -3px rgba(244, 114, 182, 0.4);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.6);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --max-width: 1160px;
}

*, *::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(--bg-deep);
  color: var(--text-main);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(56, 189, 248, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(244, 114, 182, 0.12) 0%, transparent 45%),
    linear-gradient(rgba(8, 12, 22, 0.95), rgba(8, 12, 22, 0.98)),
    repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(56, 189, 248, 0.03) 40px),
    repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(56, 189, 248, 0.03) 40px);
  background-attachment: fixed;
}

/* 焦点可见无障碍支持 */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--sakura-pink);
  outline-offset: 3px;
}

/* 容器布局 */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  position: relative;
  z-index: 2;
}

/* ====================================================================
   动漫背景动态元素：飘落花瓣与灵光光尘
   ==================================================================== */
.anime-fx-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  overflow: hidden;
}

/* 樱花瓣 */
.sakura-petal {
  position: absolute;
  top: -40px;
  background: linear-gradient(135deg, rgba(244, 114, 182, 0.85), rgba(251, 207, 232, 0.4));
  border-radius: 12px 1px 12px 1px;
  filter: drop-shadow(0 0 6px rgba(244, 114, 182, 0.5));
  animation: sakuraFall linear infinite;
  opacity: 0.85;
}

.sakura-petal:nth-child(1) { width: 14px; height: 18px; left: 8%; animation-duration: 9s; animation-delay: 0s; }
.sakura-petal:nth-child(2) { width: 10px; height: 14px; left: 24%; animation-duration: 13s; animation-delay: 2s; }
.sakura-petal:nth-child(3) { width: 16px; height: 20px; left: 45%; animation-duration: 11s; animation-delay: 4.5s; }
.sakura-petal:nth-child(4) { width: 12px; height: 16px; left: 68%; animation-duration: 10s; animation-delay: 1.5s; }
.sakura-petal:nth-child(5) { width: 15px; height: 19px; left: 88%; animation-duration: 12s; animation-delay: 3s; }
.sakura-petal:nth-child(6) { width: 11px; height: 15px; left: 95%; animation-duration: 14s; animation-delay: 6s; }

@keyframes sakuraFall {
  0% {
    transform: translateY(0) rotate(0deg) translateX(0);
    opacity: 0;
  }
  15% {
    opacity: 0.85;
  }
  50% {
    transform: translateY(50vh) rotate(180deg) translateX(50px);
  }
  100% {
    transform: translateY(105vh) rotate(360deg) translateX(-30px);
    opacity: 0;
  }
}

/* 浮游灵尘微光 */
.spirit-mote {
  position: absolute;
  border-radius: 50%;
  background-color: var(--cyan-core);
  filter: blur(1px);
  box-shadow: 0 0 10px 2px var(--cyan-core);
  animation: floatMote ease-in-out infinite alternate;
}

.spirit-mote:nth-child(7) { width: 4px; height: 4px; left: 18%; top: 30%; animation-duration: 6s; }
.spirit-mote:nth-child(8) { width: 3px; height: 3px; left: 78%; top: 25%; animation-duration: 8s; background-color: var(--sakura-pink); box-shadow: 0 0 10px 2px var(--sakura-pink); }
.spirit-mote:nth-child(9) { width: 5px; height: 5px; left: 52%; top: 65%; animation-duration: 7s; }
.spirit-mote:nth-child(10) { width: 3px; height: 3px; left: 35%; top: 80%; animation-duration: 9s; }

@keyframes floatMote {
  0% { transform: translateY(0) scale(0.8); opacity: 0.3; }
  100% { transform: translateY(-40px) scale(1.3); opacity: 0.9; }
}

/* ====================================================================
   吸顶导航栏 (Runic Cyber Header)
   ==================================================================== */
.header-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(8, 12, 22, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-main);
  min-height: 44px;
  position: relative;
  letter-spacing: -0.01em;
}

.brand-logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #1e40af, #7c3aed);
  border: 1px solid rgba(56, 189, 248, 0.4);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.35);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.brand-logo:hover .brand-logo-icon {
  transform: rotate(10deg) scale(1.05);
  box-shadow: 0 0 20px rgba(244, 114, 182, 0.5);
}

.brand-logo-text {
  background: linear-gradient(120deg, #ffffff 40%, var(--cyan-core) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.2s ease;
  padding: 0.5rem 0.5rem;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan-core), var(--sakura-pink));
  transition: all 0.25s ease;
  transform: translateX(-50%);
  border-radius: 9999px;
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 80%;
}

.header-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--btn-gradient);
  color: #ffffff;
  padding: 0.6rem 1.35rem;
  font-size: 0.925rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  box-shadow: 0 0 15px -2px rgba(124, 58, 237, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.25s ease;
  min-height: 44px;
  min-width: 96px;
  position: relative;
  overflow: hidden;
}

.header-cta-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transform: skewX(-25deg);
  transition: left 0.6s ease;
}

.header-cta-btn:hover {
  background: var(--btn-gradient-hover);
  box-shadow: 0 0 25px rgba(219, 39, 119, 0.6);
  transform: translateY(-2px);
}

.header-cta-btn:hover::before {
  left: 140%;
}

.mobile-menu-btn {
  display: none;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border-glass);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--cyan-core);
  font-size: 1.3rem;
  min-height: 44px;
  min-width: 44px;
  transition: all 0.2s ease;
}

.mobile-menu-btn:hover {
  border-color: var(--sakura-pink);
  color: #ffffff;
}

/* ====================================================================
   Hero 首屏视觉 (Anime Astral Portal & Runic Matrix)
   ==================================================================== */
.hero-section {
  padding: 5.5rem 0 4.5rem;
  text-align: center;
  position: relative;
  border-bottom: 1px solid var(--border-glass);
}

.hero-astral-wrapper {
  max-width: 920px;
  margin: 0 auto;
  position: relative;
  z-index: 3;
}

/* 动漫灵界旋转徽记 */
.anime-magic-crest {
  width: 140px;
  height: 140px;
  margin: 0 auto 1.75rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.magic-circle-outer {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px dashed rgba(56, 189, 248, 0.5);
  border-radius: 50%;
  animation: rotateClockwise 22s linear infinite;
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.25);
}

.magic-circle-inner {
  position: absolute;
  width: 76%;
  height: 76%;
  border: 2px solid rgba(244, 114, 182, 0.6);
  border-radius: 50%;
  animation: rotateCounterClockwise 15s linear infinite;
}

.magic-crest-core {
  width: 48px;
  height: 48px;
  background: radial-gradient(circle, #f472b6, #7c3aed);
  border-radius: 50%;
  box-shadow: 0 0 25px #f472b6, 0 0 45px #38bdf8;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulseCore 3s ease-in-out infinite alternate;
}

.magic-crest-core svg {
  width: 26px;
  height: 26px;
  fill: #ffffff;
  filter: drop-shadow(0 0 4px #ffffff);
}

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

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

@keyframes pulseCore {
  0% { transform: scale(0.92); box-shadow: 0 0 15px #f472b6; }
  100% { transform: scale(1.08); box-shadow: 0 0 35px #f472b6, 0 0 50px #38bdf8; }
}

.hero-meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.15rem;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid var(--border-glass);
  color: var(--cyan-core);
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: 9999px;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
  box-shadow: 0 0 16px -2px rgba(56, 189, 248, 0.3);
}

.hero-meta-badge::before {
  content: '✦';
  color: var(--sakura-pink);
  animation: pulseCore 2s infinite alternate;
}

.hero-title {
  font-size: 2.85rem;
  line-height: 1.25;
  font-weight: 900;
  color: #ffffff;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.8), 0 0 35px rgba(56, 189, 248, 0.25);
}

.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.75;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2.5rem;
  text-shadow: 0 1px 10px rgba(0, 0, 0, 0.6);
}

.hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

/* 主 CTA 按钮 (光泽扫过 + 能量呼吸) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--btn-gradient);
  color: #ffffff;
  padding: 0.85rem 2.2rem;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  box-shadow: 0 0 25px -4px rgba(124, 58, 237, 0.7), 0 0 15px rgba(244, 114, 182, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.3);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  min-height: 48px;
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -120%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
  transform: skewX(-20deg);
  animation: sheenSweep 4s ease-in-out infinite;
}

@keyframes sheenSweep {
  0% { left: -120%; }
  30% { left: 140%; }
  100% { left: 140%; }
}

.btn-primary:hover {
  background: var(--btn-gradient-hover);
  box-shadow: 0 0 35px rgba(244, 114, 182, 0.8), 0 0 20px rgba(56, 189, 248, 0.5);
  transform: translateY(-3px) scale(1.02);
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.7);
  color: #ffffff;
  padding: 0.85rem 2rem;
  font-size: 1.05rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(8px);
  transition: all 0.25s ease;
  min-height: 48px;
}

.btn-secondary:hover {
  border-color: var(--sakura-pink);
  background: rgba(30, 41, 59, 0.9);
  box-shadow: 0 0 20px rgba(244, 114, 182, 0.3);
  transform: translateY(-2px);
}

.btn-ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  animation: rippleFx 0.6s linear;
  background-color: rgba(255, 255, 255, 0.35);
  pointer-events: none;
}

@keyframes rippleFx {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

.hero-highlights {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: 0.925rem;
  padding-top: 0.75rem;
}

.hero-highlight-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(15, 23, 42, 0.5);
  padding: 0.3rem 0.85rem;
  border-radius: 9999px;
  border: 1px solid rgba(56, 189, 248, 0.15);
}

.hero-highlight-item::before {
  content: '✓';
  color: var(--cyan-core);
  font-weight: 800;
}

/* ====================================================================
   通用模块样式规范 (Glassmorphic Anime Sections)
   ==================================================================== */
.section-wrapper {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border-glass);
  position: relative;
}

.section-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.3), transparent);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--sakura-pink);
  background: rgba(244, 114, 182, 0.1);
  border: 1px solid rgba(244, 114, 182, 0.3);
  padding: 0.3rem 0.9rem;
  border-radius: 9999px;
  margin-bottom: 0.85rem;
  letter-spacing: 0.05em;
}

.section-tag::before {
  content: '◆';
  font-size: 0.65rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.35;
  color: #ffffff;
  margin-bottom: 0.85rem;
  letter-spacing: -0.01em;
}

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

/* 网格系统 */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.75rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.grid-6 { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1.25rem; }

/* 动漫次元卡片基类 (Glassmorphism + 3D 微倾斜交互) */
.card-box {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.card-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--cyan-core), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card-box:hover {
  border-color: var(--border-glass-hover);
  transform: translateY(-6px);
  box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.8), var(--shadow-glow-pink);
}

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

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.15), rgba(124, 58, 237, 0.25));
  border: 1px solid rgba(56, 189, 248, 0.4);
  color: var(--cyan-core);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.2);
  transition: transform 0.3s ease;
}

.card-box:hover .card-icon {
  transform: scale(1.1) rotate(5deg);
  border-color: var(--sakura-pink);
  color: var(--sakura-pink);
  box-shadow: 0 0 20px rgba(244, 114, 182, 0.4);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: #ffffff;
}

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

/* ====================================================================
   流媒体支持与 AI 效率模块 (线性霓虹与结界徽标)
   ==================================================================== */
.support-item {
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.5rem 1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  backdrop-filter: blur(10px);
  transition: all 0.25s ease;
  position: relative;
}

.support-item:hover {
  border-color: var(--sakura-pink);
  transform: translateY(-4px);
  background: rgba(30, 41, 59, 0.85);
  box-shadow: 0 8px 25px rgba(244, 114, 182, 0.25);
}

.support-item svg {
  width: 36px;
  height: 36px;
  stroke: var(--cyan-core);
  fill: none;
  filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.4));
  transition: stroke 0.25s ease;
}

.support-item:hover svg {
  stroke: var(--sakura-pink);
  filter: drop-shadow(0 0 10px rgba(244, 114, 182, 0.6));
}

.support-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: #ffffff;
}

.support-status {
  font-size: 0.75rem;
  color: var(--success-glow);
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 0.2rem 0.65rem;
  border-radius: 9999px;
  font-weight: 600;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
}

/* ====================================================================
   真实使用场景卡 (4张场景卡，针对多端用户)
   ==================================================================== */
.scene-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  position: relative;
}

.scene-card::after {
  content: '';
  position: absolute;
  top: 10px;
  right: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--cyan-core);
  box-shadow: 0 0 8px var(--cyan-core);
}

.scene-card:hover {
  border-color: var(--border-glass-hover);
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow-cyan);
}

.scene-header {
  margin-bottom: 1.15rem;
}

.scene-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 0.45rem;
}

.scene-device {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--cyan-core);
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  font-weight: 600;
}

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

/* ====================================================================
   套餐定价区 (Pricing Cards with Dimensional Glow)
   ==================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.pricing-card.featured {
  border-color: rgba(244, 114, 182, 0.8);
  box-shadow: 0 0 35px -5px rgba(244, 114, 182, 0.4), 0 20px 40px -10px rgba(0, 0, 0, 0.7);
  transform: translateY(-8px);
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.85) 100%);
}

.pricing-card.featured:hover {
  transform: translateY(-12px);
  box-shadow: 0 0 45px rgba(244, 114, 182, 0.6), 0 25px 50px rgba(0, 0, 0, 0.8);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #db2777, #7c3aed);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 0.35rem 1.15rem;
  border-radius: 9999px;
  letter-spacing: 0.05em;
  box-shadow: 0 0 15px rgba(219, 39, 119, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.plan-name {
  font-size: 1.45rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.45rem;
}

.plan-target {
  font-size: 0.9rem;
  color: var(--cyan-core);
  margin-bottom: 1.5rem;
}

.plan-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  margin-bottom: 1.75rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-glass);
}

.price-currency {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--sakura-pink);
}

.price-number {
  font-size: 2.85rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
  text-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.plan-features {
  list-style: none;
  margin-bottom: 2.25rem;
  flex-grow: 1;
}

.plan-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
  line-height: 1.55;
}

.plan-feature-check {
  color: var(--cyan-core);
  font-weight: 800;
  flex-shrink: 0;
  filter: drop-shadow(0 0 6px var(--cyan-core));
}

.pricing-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 0.85rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.25s ease;
  min-height: 48px;
}

.pricing-btn-primary {
  background: var(--btn-gradient);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.5);
}

.pricing-btn-primary:hover {
  background: var(--btn-gradient-hover);
  box-shadow: 0 0 30px rgba(244, 114, 182, 0.7);
  transform: translateY(-2px);
}

.pricing-btn-outline {
  background: rgba(15, 23, 42, 0.6);
  color: #ffffff;
  border: 1px solid var(--border-glass);
}

.pricing-btn-outline:hover {
  background: rgba(30, 41, 59, 0.9);
  border-color: var(--cyan-core);
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.4);
  transform: translateY(-2px);
}

/* ====================================================================
   FAQ 无障碍手风琴 (Runic Accordion with Glow)
   ==================================================================== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.faq-item:hover, .faq-item.active {
  border-color: rgba(56, 189, 248, 0.5);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.15);
}

.faq-question {
  width: 100%;
  padding: 1.35rem 1.75rem;
  text-align: left;
  background: none;
  border: none;
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  min-height: 48px;
  transition: color 0.2s ease;
}

.faq-question:hover {
  color: var(--cyan-core);
}

.faq-toggle-icon {
  font-size: 1.4rem;
  color: var(--cyan-core);
  transition: transform 0.25s ease, color 0.25s ease;
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
  padding: 0 1.75rem;
  color: var(--text-muted);
  font-size: 0.975rem;
  line-height: 1.75;
}

.faq-item.active .faq-answer {
  padding-bottom: 1.5rem;
}

/* ====================================================================
   Final CTA 转化模块 (Astral Sanctuary Call to Action)
   ==================================================================== */
.final-cta-section {
  padding: 5.5rem 0;
  position: relative;
  text-align: center;
}

.final-cta-box {
  max-width: 800px;
  margin: 0 auto;
  padding: 3.5rem 2.5rem;
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.85) 0%, rgba(15, 23, 42, 0.95) 100%);
  border: 1px solid rgba(244, 114, 182, 0.4);
  border-radius: var(--radius-lg);
  box-shadow: 0 0 40px -10px rgba(124, 58, 237, 0.5), 0 20px 40px rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
}

.final-cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.final-cta-title {
  font-size: 2.25rem;
  font-weight: 900;
  color: #ffffff;
  margin-bottom: 1.15rem;
  text-shadow: 0 0 25px rgba(255, 255, 255, 0.2);
}

.final-cta-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2.25rem;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}

/* ====================================================================
   页脚规范 (法律合规 + 联盟披露)
   ==================================================================== */
.site-footer {
  background-color: rgba(6, 10, 18, 0.95);
  padding: 3.5rem 0 2rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-glass);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand-wrap {
  max-width: 380px;
}

.footer-brand-desc {
  margin-top: 0.85rem;
  line-height: 1.65;
  font-size: 0.875rem;
  color: var(--text-subtle);
}

.footer-nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  flex-wrap: wrap;
}

.footer-link {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.9rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  transition: color 0.15s ease;
}

.footer-link:hover {
  color: var(--cyan-core);
}

.footer-disclosure {
  font-size: 0.85rem;
  color: var(--text-subtle);
  margin-bottom: 1.5rem;
  padding: 0.85rem 1.25rem;
  background: rgba(15, 23, 42, 0.7);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--sakura-pink);
  border: 1px solid var(--border-glass);
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-glass);
  font-size: 0.85rem;
  color: var(--text-subtle);
  text-align: center;
}

/* ====================================================================
   移动端吸底 CTA 条 (滚动出首屏呈现)
   ==================================================================== */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 99;
  background: rgba(8, 12, 22, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-glass);
  padding: 0.75rem 1.25rem;
  box-shadow: 0 -8px 25px rgba(0, 0, 0, 0.7);
  transform: translateY(100%);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-bottom-bar.visible {
  transform: translateY(0);
}

.mobile-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.mobile-bar-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.35;
}

.mobile-bar-price {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--sakura-pink);
  text-shadow: 0 0 10px rgba(244, 114, 182, 0.4);
}

.mobile-bar-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--btn-gradient);
  color: #ffffff;
  padding: 0.65rem 1.35rem;
  font-size: 0.925rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px;
  box-shadow: 0 0 15px rgba(219, 39, 119, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ====================================================================
   内容页面专属样式 (About / Terms / Privacy / Disclaimer / SEO Articles / Tutorials)
   ==================================================================== */
.page-header {
  padding: 3.5rem 0 2.5rem;
  background: rgba(15, 23, 42, 0.6);
  border-bottom: 1px solid var(--border-glass);
  backdrop-filter: blur(12px);
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-subtle);
  margin-bottom: 0.85rem;
}

.breadcrumb-link {
  color: var(--cyan-core);
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.breadcrumb-link:hover {
  color: var(--sakura-pink);
}

.page-title {
  font-size: 2.25rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.3;
  margin-bottom: 0.85rem;
}

.page-meta {
  font-size: 0.875rem;
  color: var(--text-subtle);
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.article-layout {
  padding: 3.5rem 0;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2.5rem;
  align-items: start;
}

.article-content {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 2.5rem;
  font-size: 1.025rem;
  line-height: 1.85;
  color: var(--text-main);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(14px);
}

.article-content h2 {
  font-size: 1.55rem;
  font-weight: 800;
  margin-top: 2.25rem;
  margin-bottom: 1rem;
  color: #ffffff;
  border-bottom: 1px solid var(--border-glass);
  padding-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.article-content h2::before {
  content: '❖';
  color: var(--cyan-core);
  font-size: 1rem;
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  color: #ffffff;
}

.article-content p {
  margin-bottom: 1.35rem;
  color: var(--text-muted);
}

.article-content ul, .article-content ol {
  margin-bottom: 1.35rem;
  padding-left: 1.5rem;
  color: var(--text-muted);
}

.article-content li {
  margin-bottom: 0.5rem;
}

.article-content strong {
  color: #ffffff;
}

.article-content a {
  color: var(--cyan-core);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.article-content a:hover {
  color: var(--sakura-pink);
}

.article-callout {
  background: rgba(30, 41, 59, 0.75);
  border-left: 4px solid var(--sakura-pink);
  padding: 1.35rem 1.75rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.75rem 0;
  border-top: 1px solid var(--border-glass);
  border-right: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
}

.article-callout p {
  margin-bottom: 0;
  color: #ffffff;
}

.article-table-wrap {
  overflow-x: auto;
  margin: 1.75rem 0;
}

.article-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.925rem;
  text-align: left;
}

.article-table th, .article-table td {
  padding: 0.85rem 1.15rem;
  border: 1px solid var(--border-glass);
}

.article-table th {
  background: rgba(30, 41, 59, 0.9);
  font-weight: 700;
  color: #ffffff;
}

.article-table tr:nth-child(even) td {
  background: rgba(15, 23, 42, 0.45);
}

.article-cta-box {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(56, 189, 248, 0.4);
  border-radius: var(--radius-md);
  padding: 2.25rem 2rem;
  text-align: center;
  margin: 3rem 0 1.5rem;
  box-shadow: 0 0 30px rgba(56, 189, 248, 0.15);
}

.article-cta-title {
  font-size: 1.45rem;
  font-weight: 800;
  margin-bottom: 0.65rem;
  color: #ffffff;
}

.article-cta-desc {
  font-size: 0.975rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.sidebar-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card);
}

.sidebar-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 1.15rem;
  border-bottom: 1px solid var(--border-glass);
  padding-bottom: 0.65rem;
}

.sidebar-list {
  list-style: none;
}

.sidebar-item {
  margin-bottom: 0.85rem;
  font-size: 0.925rem;
  color: var(--text-muted);
}

.sidebar-link {
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.2s ease;
  line-height: 1.45;
  display: inline-flex;
  min-height: 44px;
  align-items: center;
}

.sidebar-link:hover {
  color: var(--cyan-core);
  transform: translateX(4px);
}

/* ====================================================================
   教程指南卡片 (tutorials.html)
   ==================================================================== */
.tutorials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
  margin: 3rem 0;
}

.tutorial-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
}

.tutorial-card:hover {
  border-color: var(--border-glass-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow-pink);
}

.tutorial-card-thumb {
  width: 100%;
  height: 130px;
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.7), rgba(15, 23, 42, 0.9));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  border: 1px solid var(--border-glass);
  box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.5);
}

.tutorial-card-thumb svg {
  width: 52px;
  height: 52px;
  stroke: var(--cyan-core);
  filter: drop-shadow(0 0 10px rgba(56, 189, 248, 0.4));
  transition: transform 0.3s ease;
}

.tutorial-card:hover .tutorial-card-thumb svg {
  transform: scale(1.1);
  stroke: var(--sakura-pink);
  filter: drop-shadow(0 0 12px rgba(244, 114, 182, 0.6));
}

.tutorial-card-meta {
  font-size: 0.8rem;
  color: var(--text-subtle);
  margin-bottom: 0.65rem;
  display: flex;
  justify-content: space-between;
}

.tutorial-card-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 0.85rem;
}

.tutorial-card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.tutorial-card-link {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--cyan-core);
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  transition: color 0.2s ease;
}

.tutorial-card-link:hover {
  color: var(--sakura-pink);
  text-decoration: underline;
}

/* ====================================================================
   响应式断点控制
   ==================================================================== */
@media (max-width: 992px) {
  .grid-6 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin: 0 auto;
  }
  .pricing-card.featured {
    transform: none;
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.15rem;
  }
  .grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .tutorials-grid {
    grid-template-columns: 1fr;
  }
  .mobile-menu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(8, 12, 22, 0.98);
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-glass);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
    gap: 0.5rem;
  }
  .nav-links.show {
    display: flex;
  }
  .header-cta-btn {
    display: none;
  }
  .mobile-bottom-bar {
    display: block;
  }
  body {
    padding-bottom: 84px;
  }
}

/* 性能与无障碍：支持降低动态效果 */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .sakura-petal, .spirit-mote {
    display: none !important;
  }
}