/* ==========================================================================
   CuteCloud｜最萌の云 - 02 Soft SaaS · 柔光商业风
   Official Landing Page Stylesheet (cuteclouds.homes)
   ========================================================================== */

:root {
  /* Color Palette - 柔光商业风 Soft SaaS */
  --bg-base: #FFFFFF;
  --bg-subtle: #FAF9FE;
  --bg-card: rgba(255, 255, 255, 0.88);
  --bg-card-hover: rgba(255, 255, 255, 0.98);
  --bg-pill: #FDF2F8;
  
  --primary-pink: #EC4899;
  --primary-purple: #8B5CF6;
  --primary-rose: #F43F5E;
  --accent-violet: #7C3AED;
  --accent-cyan: #06B6D4;
  --accent-emerald: #10B981;
  --accent-amber: #F59E0B;
  
  --text-dark: #0F172A;
  --text-body: #334155;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  
  --border-pink: rgba(236, 72, 153, 0.18);
  --border-purple: rgba(168, 85, 247, 0.18);
  --border-subtle: rgba(226, 232, 240, 0.8);
  
  --gradient-brand: linear-gradient(135deg, #FF6584 0%, #D946EF 50%, #8B5CF6 100%);
  --gradient-glow: linear-gradient(135deg, rgba(255, 101, 132, 0.15) 0%, rgba(217, 70, 239, 0.12) 50%, rgba(139, 92, 246, 0.15) 100%);
  --gradient-button-hover: linear-gradient(135deg, #f43f5e 0%, #ec4899 40%, #7c3aed 100%);
  
  --shadow-sm: 0 2px 8px rgba(236, 72, 153, 0.06);
  --shadow-md: 0 12px 32px -4px rgba(217, 70, 239, 0.09);
  --shadow-lg: 0 20px 48px -8px rgba(168, 85, 247, 0.14);
  --shadow-glow: 0 10px 30px -5px rgba(236, 72, 153, 0.38);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  
  --container-max: 1240px;
  --header-height: 76px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Baseline */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-body);
  background-color: var(--bg-base);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  overflow-x: hidden;
  position: relative;
  background-color: var(--bg-base);
}

/* Background Soft Ambient Lights (柔光背景层) */
.ambient-glow-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.45;
  will-change: transform;
  animation: orbFloat 22s ease-in-out infinite alternate;
}

.ambient-orb-1 {
  top: -100px;
  left: 10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #FCE7F3 0%, rgba(252, 231, 243, 0) 70%);
}

.ambient-orb-2 {
  top: 250px;
  right: 5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #EDE9FE 0%, rgba(237, 233, 254, 0) 70%);
  animation-duration: 28s;
  animation-delay: -5s;
}

.ambient-orb-3 {
  bottom: 10%;
  left: 15%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, #FDF2F8 0%, rgba(253, 242, 248, 0) 70%);
  animation-duration: 25s;
  animation-delay: -10s;
}

@keyframes orbFloat {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, 30px) scale(1.08); }
  100% { transform: translate(-30px, 50px) scale(0.95); }
}

/* Utility Layout */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 96px 0;
  position: relative;
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-dark);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px auto;
}

.section-header .badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #FFF1F5;
  color: var(--primary-pink);
  border: 1px solid rgba(244, 114, 182, 0.3);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 16px;
  box-shadow: 0 2px 10px rgba(244, 114, 182, 0.12);
}

.section-header h2 {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  margin-bottom: 16px;
}

.section-header p {
  font-size: clamp(1rem, 1.25vw, 1.15rem);
  color: var(--text-muted);
  line-height: 1.7;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-full);
  padding: 13px 28px;
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-brand);
  color: #FFFFFF;
  box-shadow: var(--shadow-glow);
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  transition: 0.6s ease;
}

.btn-primary:hover {
  background: var(--gradient-button-hover);
  transform: translateY(-2px);
  box-shadow: 0 14px 35px -4px rgba(236, 72, 153, 0.5);
}

.btn-primary:hover::after {
  left: 100%;
}

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

.btn-secondary {
  background: rgba(255, 255, 255, 0.95);
  color: var(--text-dark);
  border: 1px solid rgba(236, 72, 153, 0.25);
  box-shadow: 0 4px 14px rgba(236, 72, 153, 0.08);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: #FFFFFF;
  border-color: var(--primary-pink);
  color: var(--primary-pink);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(236, 72, 153, 0.16);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.125rem;
}

/* ==========================================================================
   Top Announcement Bar
   ========================================================================== */
.announcement-bar {
  background: linear-gradient(90deg, #FFF1F5 0%, #FAF5FF 50%, #FFF1F5 100%);
  border-bottom: 1px solid rgba(244, 114, 182, 0.2);
  padding: 9px 16px;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: #BE185D;
  position: relative;
  z-index: 101;
}

.announcement-bar a {
  color: var(--primary-pink);
  text-decoration: underline;
  margin-left: 8px;
  font-weight: 700;
  transition: opacity var(--transition-fast);
}

.announcement-bar a:hover {
  opacity: 0.8;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(244, 114, 182, 0.15);
  z-index: 100;
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 10px 30px -10px rgba(236, 72, 153, 0.12);
  height: 68px;
}

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

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  user-select: none;
}

.brand-logo-img {
  width: 44px;
  height: 44px;
  transition: transform var(--transition-normal);
}

.brand-logo:hover .brand-logo-img {
  transform: rotate(-6deg) scale(1.08);
}

.brand-name {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--text-dark);
  line-height: 1.1;
}

.brand-subtitle {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--primary-pink);
  letter-spacing: 0.08em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-body);
  transition: color var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: var(--radius-full);
  transition: width var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary-pink);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Mobile Hamburger Menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-dark);
}

.mobile-menu-btn svg {
  width: 28px;
  height: 28px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  padding: 70px 0 90px 0;
  overflow: hidden;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 48px;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #FFF1F5;
  border: 1px solid rgba(244, 114, 182, 0.35);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 700;
  color: #DB2777;
  margin-bottom: 24px;
  box-shadow: 0 4px 14px rgba(244, 114, 182, 0.12);
}

.hero-title {
  font-size: clamp(2.4rem, 4.2vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 22px;
}

.hero-title .brand-accent {
  display: block;
  font-size: 0.9em;
  margin-top: 6px;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero-guarantee {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.guarantee-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
}

.guarantee-item svg {
  color: #10B981;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* Hero Visual / Mockup */
.hero-visual {
  position: relative;
}

.hero-visual-card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(244, 114, 182, 0.25);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-lg), 0 0 40px rgba(236, 72, 153, 0.1);
  backdrop-filter: blur(24px);
  position: relative;
  z-index: 2;
  transition: transform var(--transition-normal);
}

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

.mockup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  padding-bottom: 16px;
  margin-bottom: 20px;
}

.mockup-dots {
  display: flex;
  gap: 7px;
}

.mockup-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.mockup-dot.red { background: #FF5F56; }
.mockup-dot.yellow { background: #FFBD2E; }
.mockup-dot.green { background: #27C93F; }

.mockup-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  color: #059669;
  background: #ECFDF5;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #10B981;
  border-radius: 50%;
  box-shadow: 0 0 0 rgba(16, 185, 129, 0.4);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6); }
  70% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.mockup-speed-meter {
  background: linear-gradient(135deg, #FFF1F5 0%, #FAF5FF 100%);
  border-radius: var(--radius-lg);
  padding: 20px;
  text-align: center;
  margin-bottom: 20px;
  border: 1px solid rgba(244, 114, 182, 0.2);
}

.speed-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.speed-value {
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1.1;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-family: var(--font-mono);
}

.speed-unit {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary-purple);
  margin-left: 4px;
}

.speed-bar-container {
  height: 8px;
  background: #E2E8F0;
  border-radius: var(--radius-full);
  margin-top: 14px;
  overflow: hidden;
}

.speed-bar-fill {
  height: 100%;
  width: 92%;
  background: var(--gradient-brand);
  border-radius: var(--radius-full);
  animation: barFlow 2.5s ease-in-out infinite alternate;
}

@keyframes barFlow {
  0% { width: 88%; }
  100% { width: 98%; }
}

.mockup-nodes-preview {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.node-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: #FFFFFF;
  border: 1px solid rgba(241, 245, 249, 1);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.node-row:hover {
  border-color: rgba(244, 114, 182, 0.4);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.node-flag-name {
  display: flex;
  align-items: center;
  gap: 10px;
}

.node-flag {
  font-size: 1.25rem;
}

.node-ping {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: #059669;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Floating floating badge around mockup */
.floating-stat-badge {
  position: absolute;
  background: #FFFFFF;
  padding: 12px 18px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(244, 114, 182, 0.3);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 3;
  animation: floatSubtle 4s ease-in-out infinite alternate;
}

.floating-stat-badge.pos-top-left {
  top: -24px;
  left: -20px;
}

.floating-stat-badge.pos-bottom-right {
  bottom: -20px;
  right: -15px;
  animation-delay: -2s;
}

@keyframes floatSubtle {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

.stat-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.stat-icon.pink { background: #FCE7F3; color: #DB2777; }
.stat-icon.purple { background: #EDE9FE; color: #7C3AED; }

.stat-meta {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}

.stat-value {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-dark);
}

/* ==========================================================================
   Trust Stats Strip
   ========================================================================== */
.stats-strip {
  background: rgba(255, 255, 255, 0.75);
  border-top: 1px solid rgba(244, 114, 182, 0.15);
  border-bottom: 1px solid rgba(244, 114, 182, 0.15);
  padding: 36px 0;
  backdrop-filter: blur(12px);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-metric-card {
  padding: 8px;
}

.stat-metric-number {
  font-size: 2.25rem;
  font-weight: 900;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  margin-bottom: 6px;
}

.stat-metric-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* ==========================================================================
   Features Section - 粉紫功能卡 (Soft SaaS)
   ========================================================================== */
.features-section {
  position: relative;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-pink);
  border-radius: var(--radius-xl);
  padding: 34px 28px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(16px);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-6px);
  background: var(--bg-card-hover);
  border-color: rgba(236, 72, 153, 0.4);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(236, 72, 153, 0.12);
}

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

.feature-icon-box {
  width: 58px;
  height: 58px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 22px;
  background: linear-gradient(135deg, #FFF1F5 0%, #FAF5FF 100%);
  border: 1px solid rgba(244, 114, 182, 0.25);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
}

.feature-card:hover .feature-icon-box {
  transform: scale(1.1) rotate(4deg);
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-body);
  line-height: 1.7;
  flex-grow: 1;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.feature-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: #FDF2F8;
  color: #BE185D;
  border: 1px solid rgba(244, 114, 182, 0.2);
}

/* ==========================================================================
   Client Showcase Section (客户端展示)
   ========================================================================== */
.client-section {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5) 0%, rgba(250, 245, 255, 0.6) 100%);
  border-top: 1px solid rgba(244, 114, 182, 0.12);
  border-bottom: 1px solid rgba(244, 114, 182, 0.12);
}

.client-tabs {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.client-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  background: #FFFFFF;
  border: 1px solid rgba(226, 232, 240, 1);
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-body);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.client-tab-btn svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.client-tab-btn:hover {
  border-color: var(--primary-pink);
  color: var(--primary-pink);
  transform: translateY(-2px);
}

.client-tab-btn.active {
  background: var(--gradient-brand);
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: 0 8px 24px -2px rgba(236, 72, 153, 0.4);
}

.client-tab-btn.active svg {
  color: #FFFFFF;
}

.client-tab-content {
  display: none;
  background: #FFFFFF;
  border: 1px solid rgba(244, 114, 182, 0.25);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(16px);
  animation: fadeIn 0.4s ease-out forwards;
}

.client-tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.client-content-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
}

.client-info h3 {
  font-size: 1.6rem;
  margin-bottom: 14px;
}

.client-info p {
  color: var(--text-body);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

.client-apps-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 28px;
}

.client-app-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: #FAF5FF;
  border: 1px solid rgba(216, 180, 254, 0.5);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-dark);
}

.client-app-card svg {
  width: 22px;
  height: 22px;
  color: var(--primary-purple);
  flex-shrink: 0;
}

.client-demo-visual {
  background: linear-gradient(135deg, #FFF1F5 0%, #F5F3FF 100%);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px dashed rgba(244, 114, 182, 0.4);
  text-align: left;
}

.setup-step {
  display: flex;
  gap: 14px;
  margin-bottom: 18px;
}

.setup-step:last-child {
  margin-bottom: 0;
}

.setup-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #FFFFFF;
  font-size: 0.85rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.setup-step-text h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.setup-step-text p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 0;
}

/* ==========================================================================
   Pricing Section (清晰套餐区 - 严格对应原图)
   ========================================================================== */
.pricing-section {
  position: relative;
}

.billing-toggle-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
}

.billing-label {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-body);
  cursor: pointer;
}

.billing-label.active {
  color: var(--primary-pink);
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 58px;
  height: 32px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #E2E8F0;
  transition: var(--transition-normal);
  border-radius: 34px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.08);
}

.toggle-slider::before {
  position: absolute;
  content: "";
  height: 24px;
  width: 24px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: var(--transition-normal);
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--gradient-brand);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(26px);
}

.discount-pill {
  background: #FFF1F2;
  color: #E11D48;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(244, 63, 94, 0.25);
  box-shadow: 0 2px 8px rgba(244, 63, 94, 0.1);
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-pink);
  border-radius: var(--radius-xl);
  padding: 36px 30px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all var(--transition-normal);
  backdrop-filter: blur(16px);
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg), 0 0 35px rgba(236, 72, 153, 0.15);
  border-color: rgba(236, 72, 153, 0.5);
}

/* Featured / Popular Card Styling */
.pricing-card.popular {
  background: linear-gradient(180deg, #FFFFFF 0%, #FDF4F8 100%);
  border: 2px solid var(--primary-pink);
  box-shadow: 0 20px 50px -10px rgba(236, 72, 153, 0.25);
  transform: scale(1.03);
}

.pricing-card.popular:hover {
  transform: scale(1.03) translateY(-8px);
}

.pricing-badge-popular {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-brand);
  color: #FFFFFF;
  font-size: 0.8rem;
  font-weight: 800;
  padding: 5px 18px;
  border-radius: var(--radius-full);
  box-shadow: 0 6px 16px rgba(236, 72, 153, 0.4);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.pricing-card-header {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px dashed rgba(226, 232, 240, 0.8);
}

.plan-name {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 14px;
}

.plan-price-wrapper {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 10px;
}

.plan-currency {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-pink);
}

.plan-price {
  font-size: 3rem;
  font-weight: 900;
  color: var(--text-dark);
  line-height: 1;
  font-family: var(--font-sans);
}

.plan-cycle {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
}

.plan-saving-tip {
  font-size: 0.85rem;
  font-weight: 700;
  color: #2563EB;
  background: #EFF6FF;
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.pricing-features-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.pricing-features-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-muted);
}

.pricing-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 13px;
  margin-bottom: 32px;
  flex-grow: 1;
}

.pricing-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.925rem;
  color: var(--text-body);
  line-height: 1.45;
}

.pricing-feature-item svg {
  width: 18px;
  height: 18px;
  color: var(--primary-pink);
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-feature-item strong {
  color: var(--text-dark);
}

.pricing-cta {
  width: 100%;
}

/* ==========================================================================
   Global Nodes & Status (全球节点与网络加速矩阵)
   ========================================================================== */
.nodes-section {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(253, 242, 248, 0.4) 100%);
}

.nodes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 40px;
}

.node-card {
  background: #FFFFFF;
  border: 1px solid rgba(244, 114, 182, 0.2);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.node-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-pink);
  box-shadow: var(--shadow-md);
}

.node-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.node-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--text-dark);
}

.node-status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  color: #059669;
  background: #ECFDF5;
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.node-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.node-meta-value {
  font-weight: 700;
  color: var(--text-dark);
}

/* ==========================================================================
   FAQ Section (常见问答)
   ========================================================================== */
.faq-section {
  position: relative;
}

.faq-container {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: #FFFFFF;
  border: 1px solid rgba(244, 114, 182, 0.2);
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.faq-item:hover {
  border-color: rgba(236, 72, 153, 0.4);
}

.faq-item.open {
  border-color: var(--primary-pink);
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  padding: 22px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--primary-pink);
}

.faq-icon {
  width: 24px;
  height: 24px;
  color: var(--primary-pink);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.open .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease-out;
  padding: 0 26px;
  font-size: 0.975rem;
  color: var(--text-body);
  line-height: 1.75;
}

.faq-item.open .faq-answer {
  max-height: 500px;
  padding: 0 26px 24px 26px;
}

/* ==========================================================================
   Bottom Conversion CTA Banner
   ========================================================================== */
.cta-banner-section {
  padding: 80px 0;
  position: relative;
}

.cta-banner-card {
  background: linear-gradient(135deg, #FFF1F5 0%, #FAF5FF 50%, #F5F3FF 100%);
  border: 1px solid rgba(244, 114, 182, 0.3);
  border-radius: var(--radius-xl);
  padding: 60px 40px;
  text-align: center;
  box-shadow: var(--shadow-lg), 0 0 50px rgba(236, 72, 153, 0.15);
  position: relative;
  overflow: hidden;
}

.cta-banner-card::before {
  content: '';
  position: absolute;
  top: -150px;
  right: -150px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.15), transparent 70%);
  border-radius: 50%;
}

.cta-banner-card h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  margin-bottom: 16px;
}

.cta-banner-card p {
  font-size: 1.15rem;
  color: var(--text-body);
  max-width: 680px;
  margin: 0 auto 32px auto;
  line-height: 1.8;
}

.cta-banner-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Site Footer
   ========================================================================== */
.site-footer {
  background: #FFFFFF;
  border-top: 1px solid rgba(226, 232, 240, 0.8);
  padding: 70px 0 30px 0;
  position: relative;
  z-index: 2;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 340px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 20px;
}

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

.footer-links a {
  text-decoration: none;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--primary-pink);
}

.footer-bottom {
  border-top: 1px solid rgba(241, 245, 249, 1);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-light);
  flex-wrap: wrap;
  gap: 16px;
}

.footer-disclaimer {
  max-width: 700px;
  line-height: 1.6;
}

/* ==========================================================================
   Sticky Mobile Bottom Bar (高转化手机端吸底购买条)
   ========================================================================== */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid rgba(244, 114, 182, 0.3);
  padding: 10px 16px;
  z-index: 99;
  box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.08);
}

.mobile-sticky-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.mobile-sticky-info {
  display: flex;
  flex-direction: column;
}

.mobile-sticky-title {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.2;
}

.mobile-sticky-price {
  font-size: 0.8rem;
  color: var(--primary-pink);
  font-weight: 700;
}

/* ==========================================================================
   Mobile Navigation Drawer
   ========================================================================== */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 320px;
  height: 100vh;
  background: #FFFFFF;
  z-index: 200;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
  padding: 24px;
  display: flex;
  flex-direction: column;
  transition: right 0.3s ease;
}

.mobile-drawer.open {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 30px;
  padding-bottom: 16px;
  border-bottom: 1px solid #F1F5F9;
}

.mobile-drawer-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-dark);
}

.mobile-drawer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 30px;
}

.mobile-drawer-link {
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  display: block;
}

.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  z-index: 199;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.drawer-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
  
  .pricing-card.popular {
    transform: none;
  }
  
  .pricing-card.popular:hover {
    transform: translateY(-8px);
  }
  
  .nodes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links, .header-actions {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .client-content-grid {
    grid-template-columns: 1fr;
  }
  
  .client-apps-list {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .nodes-grid {
    grid-template-columns: 1fr;
  }
  
  .mobile-sticky-bar {
    display: block;
  }
  
  body {
    padding-bottom: 70px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Cloud Dissolve 云雾渐显开场动画 (Cloud Dissolve Opening Animation)
   ========================================================================== */
.cloud-intro-overlay {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
  /* Seamless dissolve sequence: starts after clouds drift and text clarifies */
  animation: introOverlayFadeOut 0.75s cubic-bezier(0.4, 0, 0.2, 1) 2.25s forwards;
  will-change: opacity, visibility;
}

/* Instant dismiss state if user clicks skip or anywhere */
.cloud-intro-overlay.instant-dismiss {
  animation: introOverlayQuickFade 0.35s ease-out forwards !important;
}

@keyframes introOverlayQuickFade {
  0% { opacity: 1; }
  100% { opacity: 0; visibility: hidden; pointer-events: none; display: none; }
}

@keyframes introOverlayFadeOut {
  0% {
    opacity: 1;
    visibility: visible;
  }
  99% {
    opacity: 0;
    visibility: visible;
    pointer-events: none;
  }
  100% {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    display: none;
  }
}

/* Brand-tinted soft gradient base (品牌配色柔和渐变背景) */
.cloud-intro-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 48%, #FFFFFF 0%, #FFF5F8 35%, #FAF5FF 65%, #F5EEFD 100%);
  z-index: 1;
}

/* Soft Misty Clouds (左右云雾层 - 覆盖中央并向两侧缓慢漂移) */
.cloud-mist-layer {
  position: absolute;
  top: 50%;
  width: 860px;
  height: 620px;
  pointer-events: none;
  z-index: 2;
  will-change: transform, opacity;
}

.cloud-svg-layer {
  width: 100%;
  height: 100%;
  display: block;
}

/* Left Cloud Mist */
.cloud-mist-left {
  left: 50%;
  margin-left: -540px;
  margin-top: -310px;
  animation: cloudMistDriftLeft 2.35s cubic-bezier(0.25, 1, 0.45, 1) forwards;
}

@keyframes cloudMistDriftLeft {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.92;
  }
  35% {
    transform: translate3d(-10vw, -1%, 0) scale(1.1);
    opacity: 0.88;
  }
  75% {
    transform: translate3d(-35vw, -3%, 0) scale(1.32);
    opacity: 0.5;
  }
  100% {
    transform: translate3d(-56vw, -4%, 0) scale(1.5);
    opacity: 0;
  }
}

/* Right Cloud Mist */
.cloud-mist-right {
  right: 50%;
  margin-right: -540px;
  margin-top: -310px;
  animation: cloudMistDriftRight 2.35s cubic-bezier(0.25, 1, 0.45, 1) forwards;
}

@keyframes cloudMistDriftRight {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.92;
  }
  35% {
    transform: translate3d(10vw, 1%, 0) scale(1.1);
    opacity: 0.88;
  }
  75% {
    transform: translate3d(35vw, 3%, 0) scale(1.32);
    opacity: 0.5;
  }
  100% {
    transform: translate3d(56vw, 4%, 0) scale(1.5);
    opacity: 0;
  }
}

/* Center ambient soft mist aura */
.cloud-mist-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.95) 0%, rgba(253, 242, 248, 0.8) 50%, rgba(245, 238, 253, 0) 100%);
  z-index: 3;
  pointer-events: none;
  animation: centerMistDissolve 2.2s cubic-bezier(0.25, 1, 0.45, 1) forwards;
  will-change: opacity, transform;
}

@keyframes centerMistDissolve {
  0% {
    opacity: 0.95;
    transform: translate(-50%, -50%) scale(0.95);
  }
  50% {
    opacity: 0.8;
    transform: translate(-50%, -50%) scale(1.1);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.4);
  }
}

/* Center Stage Content Container */
.intro-stage-box {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
  animation: introStageDissolve 0.65s cubic-bezier(0.4, 0, 0.2, 1) 2.1s forwards;
  will-change: transform, opacity;
}

@keyframes introStageDissolve {
  0% {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate3d(0, -12px, 0) scale(1.05);
  }
}

/* 1. LOGO 在文字上方缓慢浮现 */
.intro-logo-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  opacity: 0;
  transform: translate3d(0, 24px, 0) scale(0.82);
  animation: introLogoFloatIn 1.35s cubic-bezier(0.16, 1, 0.3, 1) 0.15s forwards;
  will-change: transform, opacity, filter;
}

.intro-logo-img {
  width: 96px;
  height: 96px;
  position: relative;
  z-index: 2;
  transition: transform var(--transition-normal);
}

.intro-logo-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 130px;
  height: 130px;
  background: radial-gradient(circle, rgba(244, 114, 182, 0.4) 0%, rgba(168, 85, 247, 0.25) 50%, transparent 70%);
  border-radius: 50%;
  z-index: 1;
  filter: blur(14px);
  animation: pulseGlow 2.5s ease-in-out infinite alternate;
}

@keyframes pulseGlow {
  0% { transform: translate(-50%, -50%) scale(0.9); opacity: 0.6; }
  100% { transform: translate(-50%, -50%) scale(1.15); opacity: 0.95; }
}

@keyframes introLogoFloatIn {
  0% {
    opacity: 0;
    transform: translate3d(0, 24px, 0) scale(0.82);
    filter: drop-shadow(0 0 0 rgba(236, 72, 153, 0));
  }
  65% {
    opacity: 0.95;
    transform: translate3d(0, -4px, 0) scale(1.03);
    filter: drop-shadow(0 14px 30px rgba(236, 72, 153, 0.42));
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
    filter: drop-shadow(0 10px 24px rgba(236, 72, 153, 0.28));
  }
}

/* 2. 品牌名称从模糊状态逐渐清晰 */
.intro-text-wrap {
  opacity: 0;
  filter: blur(14px);
  transform: translate3d(0, 14px, 0) scale(0.95);
  animation: introTextBlurToClear 1.35s cubic-bezier(0.2, 0.8, 0.2, 1) 0.35s forwards;
  will-change: transform, opacity, filter;
}

@keyframes introTextBlurToClear {
  0% {
    opacity: 0;
    filter: blur(14px);
    transform: translate3d(0, 14px, 0) scale(0.94);
  }
  45% {
    opacity: 0.75;
    filter: blur(6px);
    transform: translate3d(0, 5px, 0) scale(0.98);
  }
  100% {
    opacity: 1;
    filter: blur(0px);
    transform: translate3d(0, 0, 0) scale(1);
  }
}

.intro-title-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.intro-brand-name {
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  font-weight: 900;
  letter-spacing: -0.025em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

.intro-badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.95rem;
  font-weight: 800;
  padding: 5px 16px;
  border-radius: var(--radius-full);
  background: #FFF1F5;
  color: #DB2777;
  border: 1px solid rgba(244, 114, 182, 0.4);
  box-shadow: 0 4px 14px rgba(244, 114, 182, 0.18);
  letter-spacing: 0.04em;
}

.intro-slogan {
  margin-top: 12px;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 700;
  color: #475569;
  letter-spacing: 0.06em;
}

/* Subtle Skip Button */
.intro-skip-btn {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 25;
  padding: 7px 18px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #BE185D;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(244, 114, 182, 0.35);
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 14px rgba(244, 114, 182, 0.12);
  transition: all var(--transition-fast);
}

.intro-skip-btn:hover {
  background: #FFFFFF;
  border-color: var(--primary-pink);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(244, 114, 182, 0.22);
}

/* ==========================================================================
   移动端低成本 CSS 动画优化 (Mobile Low-Cost Hardware Accelerated Animation)
   ========================================================================== */
@media (max-width: 768px) {
  .cloud-mist-layer {
    width: 520px;
    height: 400px;
  }
  
  .cloud-mist-left {
    margin-left: -320px;
    margin-top: -200px;
  }
  
  .cloud-mist-right {
    margin-right: -320px;
    margin-top: -200px;
  }
  
  .cloud-mist-center {
    width: 290px;
    height: 230px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.95) 0%, rgba(253, 242, 248, 0.7) 60%, transparent 100%);
  }

  .intro-logo-img {
    width: 76px;
    height: 76px;
  }
  
  .intro-logo-glow {
    width: 100px;
    height: 100px;
    filter: blur(10px);
  }

  .intro-brand-name {
    font-size: 2.25rem;
  }

  .intro-badge {
    font-size: 0.85rem;
    padding: 3px 12px;
  }

  .intro-slogan {
    font-size: 0.95rem;
    margin-top: 8px;
  }

  /* 移动端轻量化文本去模糊：低步进低重绘消耗 */
  @keyframes introTextBlurToClear {
    0% {
      opacity: 0;
      filter: blur(8px);
      transform: translate3d(0, 10px, 0) scale(0.95);
    }
    100% {
      opacity: 1;
      filter: blur(0px);
      transform: translate3d(0, 0, 0) scale(1);
    }
  }

  .intro-skip-btn {
    top: 16px;
    right: 16px;
    padding: 5px 14px;
    font-size: 0.8rem;
  }
}

/* ==========================================================================
   高级滚动展示与微视差动画系统 (Advanced Scroll Reveal & Parallax Effect)
   ========================================================================== */

/* 1. 基础滚动入场状态 */
.scroll-reveal {
  opacity: 0;
  transform: translate3d(0, 36px, 0);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.scroll-reveal.scroll-revealed {
  opacity: 1 !important;
  transform: translate3d(0, 0, 0) !important;
}

/* 缩放扩散入场变体 */
.scroll-reveal-scale {
  opacity: 0;
  transform: scale(0.92) translate3d(0, 30px, 0);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.scroll-reveal-scale.scroll-revealed {
  opacity: 1 !important;
  transform: scale(1) translate3d(0, 0, 0) !important;
}

/* 横向滑动入场变体 */
.scroll-reveal-left {
  opacity: 0;
  transform: translate3d(-40px, 0, 0);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.scroll-reveal-left.scroll-revealed {
  opacity: 1 !important;
  transform: translate3d(0, 0, 0) !important;
}

.scroll-reveal-right {
  opacity: 0;
  transform: translate3d(40px, 0, 0);
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.scroll-reveal-right.scroll-revealed {
  opacity: 1 !important;
  transform: translate3d(0, 0, 0) !important;
}

/* 2. 套餐卡片高级错峰入场与悬浮光效系统 (Pricing Stagger Reveal) */
.pricing-grid {
  perspective: 1200px;
}

.pricing-card.stagger-reveal-item {
  opacity: 0;
  will-change: transform, opacity, box-shadow, border-color;
  transition: opacity 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.85s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow var(--transition-normal),
              border-color var(--transition-normal);
}

/* Card 1: Basis 小杯套餐 - 自左下方轻盈滑入 (0.06s 延时) */
.pricing-card.stagger-card-1 {
  transform: translate3d(-26px, 46px, 0);
  transition-delay: 0.06s;
}

.pricing-card.stagger-card-1.stagger-revealed {
  opacity: 1 !important;
  transform: translate3d(0, 0, 0) !important;
}

.pricing-card.stagger-card-1.stagger-revealed:hover {
  transform: translate3d(0, -8px, 0) !important;
}

/* Card 2: Standard 中杯套餐 (热门推荐) - 从正下方跃升入场，立体聚焦并带有粉紫柔光高光 (0.22s 延时) */
.pricing-card.stagger-card-2 {
  transform: translate3d(0, 58px, 0) scale(0.95);
  transition-duration: 0.92s;
  transition-delay: 0.22s;
}

.pricing-card.stagger-card-2.stagger-revealed {
  opacity: 1 !important;
  transform: translate3d(0, 0, 0) scale(1.03) !important;
  border-color: rgba(236, 72, 153, 0.85) !important;
  box-shadow: 0 24px 60px -8px rgba(236, 72, 153, 0.32),
              0 0 35px rgba(236, 72, 153, 0.18) !important;
}

.pricing-card.stagger-card-2.stagger-revealed:hover {
  transform: translate3d(0, -8px, 0) scale(1.03) !important;
  box-shadow: 0 28px 70px -6px rgba(236, 72, 153, 0.42),
              0 0 45px rgba(236, 72, 153, 0.25) !important;
}

/* 推荐徽章柔光呼吸动画 (优雅不凌乱) */
.pricing-card.stagger-card-2.stagger-revealed .pricing-badge-popular {
  animation: popularBadgePulse 3.5s ease-in-out infinite alternate;
}

@keyframes popularBadgePulse {
  0% {
    box-shadow: 0 6px 16px rgba(236, 72, 153, 0.4);
    transform: translateX(-50%) scale(1);
  }
  100% {
    box-shadow: 0 8px 24px rgba(236, 72, 153, 0.65), 0 0 16px rgba(217, 70, 239, 0.5);
    transform: translateX(-50%) scale(1.04);
  }
}

/* Card 3: Premium 大杯套餐 - 自右下方轻盈滑入 (0.38s 延时) */
.pricing-card.stagger-card-3 {
  transform: translate3d(26px, 46px, 0);
  transition-delay: 0.38s;
}

.pricing-card.stagger-card-3.stagger-revealed {
  opacity: 1 !important;
  transform: translate3d(0, 0, 0) !important;
}

.pricing-card.stagger-card-3.stagger-revealed:hover {
  transform: translate3d(0, -8px, 0) !important;
}

/* 移动端错峰自适应 (竖排单列时无横向偏移，纯纵向错落滑入) */
@media (max-width: 1024px) {
  .pricing-grid {
    perspective: none;
  }

  .pricing-card.stagger-card-1 {
    transform: translate3d(0, 36px, 0);
    transition-delay: 0.05s;
  }

  .pricing-card.stagger-card-2 {
    transform: translate3d(0, 36px, 0) scale(0.98);
    transition-delay: 0.18s;
  }

  .pricing-card.stagger-card-2.stagger-revealed {
    transform: translate3d(0, 0, 0) scale(1) !important;
  }

  .pricing-card.stagger-card-2.stagger-revealed:hover {
    transform: translate3d(0, -6px, 0) scale(1) !important;
  }

  .pricing-card.stagger-card-3 {
    transform: translate3d(0, 36px, 0);
    transition-delay: 0.30s;
  }
}

/* 3. 柔光背景微视差平滑过渡 */
.ambient-orb {
  transition: transform 0.3s cubic-bezier(0.2, 0, 0.2, 1);
}

/* 4. 3D 透视卡片微倾斜支持 */
.hero-visual-card {
  transition: transform 0.25s cubic-bezier(0.25, 1, 0.5, 1), box-shadow var(--transition-normal);
  transform-style: preserve-3d;
}

/* 5. 减弱动态偏好（无障碍访问） */
@media (prefers-reduced-motion: reduce) {
  .scroll-reveal,
  .scroll-reveal-scale,
  .scroll-reveal-left,
  .scroll-reveal-right {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}