/* CSS自定义属性 - 现代化设计系统 */
:root {
  /* 主色彩 - 参考OHZI深色主题 */
  --primary-blue: #00D4FF;
  --primary-blue-hover: #0099CC;
  --secondary-purple: #6B46C1;
  --accent-pink: #EC4899;
  --success-green: #10B981;
  --warning-orange: #F59E0B;
  --error-red: #EF4444;
  
  /* 背景色 - 深色主题 */
  --bg-primary: #0F0F0F;
  --bg-secondary: #1A1A1A;
  --bg-tertiary: #262626;
  --bg-card: rgba(255, 255, 255, 0.05);
  --bg-card-hover: rgba(255, 255, 255, 0.1);
  --bg-overlay: rgba(0, 0, 0, 0.8);
  
  /* 文字色 */
  --text-primary: #FFFFFF;
  --text-secondary: #A3A3A3;
  --text-tertiary: #737373;
  --text-inverse: #FFFFFF;
  
  /* 边框和分割线 */
  --border-light: rgba(255, 255, 255, 0.1);
  --border-medium: rgba(255, 255, 255, 0.2);
  --border-dark: rgba(255, 255, 255, 0.3);
  
  /* 阴影 */
  --shadow-small: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-large: 0 8px 25px rgba(0, 0, 0, 0.15);
  
  /* 圆角 */
  --radius-small: 6px;
  --radius-medium: 12px;
  --radius-large: 16px;
  --radius-xl: 20px;
  
  /* 间距 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  
  /* 字体 */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

/* 基础重置 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 通用文本颜色修复 */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
}

p, span, div {
  color: var(--text-primary);
}

label {
  color: var(--text-secondary);
}

input, textarea, select {
  color: var(--text-primary);
}

button {
  color: inherit;
}

body {
  font-family: var(--font-family);
  background: #0a0a0a;
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* 粒子效果画布 */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* 布局结构 */
.main-content {
  margin-left: 280px;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

@media (max-width: 768px) {
  .main-content {
    margin-left: 0;
    padding-top: 80px;
  }
}

/* 左侧导航 */
.side-nav {
  position: fixed;
  left: 0;
  top: 0;
  width: 280px;
  height: 100vh;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--border-light);
  z-index: 100;
  display: flex;
  flex-direction: column;
  padding: var(--space-xl) 0;
}

.nav-logo {
  padding: 0 var(--space-xl);
  margin-bottom: var(--space-2xl);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.logo-icon {
  position: relative;
}

.logo-icon svg {
  filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.3));
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 2px;
}

.nav-menu {
  flex: 1;
  padding: 0 var(--space-lg);
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-sm);
  border-radius: var(--radius-medium);
  cursor: pointer;
  transition: all 0.3s ease;
  color: var(--text-secondary);
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  transform: translateX(8px);
}

.nav-item.active {
  background: rgba(0, 212, 255, 0.1);
  color: var(--primary-blue);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
}

.nav-item.active .nav-indicator {
  opacity: 1;
  transform: scaleY(1);
}

.nav-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-label {
  font-weight: 500;
  font-size: 14px;
}

.nav-indicator {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 3px;
  height: 20px;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-pink));
  border-radius: 0 2px 2px 0;
  opacity: 0;
  transition: all 0.3s ease;
}

.nav-footer {
  padding: 0 var(--space-xl);
  border-top: 1px solid var(--border-light);
  padding-top: var(--space-lg);
}

.nav-version {
  font-size: 12px;
  color: var(--text-tertiary);
  text-align: center;
}

/* 移动端导航 */
@media (max-width: 768px) {
  .side-nav {
    width: 100%;
    height: 80px;
    flex-direction: row;
    padding: 0 var(--space-lg);
  }
  
  .nav-logo {
    margin-bottom: 0;
    padding: 0;
  }
  
  .nav-menu {
    flex: 1;
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
  }
  
  .nav-item {
    flex-direction: column;
    gap: 4px;
    padding: var(--space-xs);
    margin-bottom: 0;
  }
  
  .nav-label {
    font-size: 10px;
  }
  
  .nav-footer {
    display: none;
  }
}

/* Section 管理 */
.section {
  display: none;
  min-height: 100vh;
}

.section.active {
  display: block;
}

/* Landing 首页 */
.landing-container {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl);
  text-align: center;
}

/* 3D 棱镜立方体 */
.cube-container {
  position: absolute;
  top: calc(20% - 20px);
  left: 50%;
  transform: translateX(-50%);
  perspective: 1000px;
  z-index: 2;
}

.cube {
  width: 120px;
  height: 120px;
  position: relative;
  transform-style: preserve-3d;
  animation: cubeRotate 20s linear infinite;
  cursor: pointer;
  transition: animation-duration 0.3s ease;
}

.cube:hover {
  animation-duration: 5s;
}

.cube-face {
  position: absolute;
  width: 120px;
  height: 120px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(0, 212, 255, 0.3);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cube-face::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(45deg, 
    rgba(0, 212, 255, 0.1), 
    rgba(236, 72, 153, 0.1), 
    rgba(107, 70, 193, 0.1)
  );
  opacity: 0.7;
}

.cube-face.front { transform: rotateY(0deg) translateZ(60px); }
.cube-face.back { transform: rotateY(180deg) translateZ(60px); }
.cube-face.right { transform: rotateY(90deg) translateZ(60px); }
.cube-face.left { transform: rotateY(-90deg) translateZ(60px); }
.cube-face.top { transform: rotateX(90deg) translateZ(60px); }
.cube-face.bottom { transform: rotateX(-90deg) translateZ(60px); }

@keyframes cubeRotate {
  0% { transform: rotateX(0deg) rotateY(0deg); }
  25% { transform: rotateX(90deg) rotateY(90deg); }
  50% { transform: rotateX(180deg) rotateY(180deg); }
  75% { transform: rotateX(270deg) rotateY(270deg); }
  100% { transform: rotateX(360deg) rotateY(360deg); }
}

/* Landing 内容 */
.landing-content {
  position: relative;
  z-index: 3;
  margin-top: 200px;
  max-width: 800px;
}

.landing-title {
  margin-bottom: var(--space-xl);
}

.landing-title .title-main {
  display: block;
  font-size: 56px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-pink), var(--secondary-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
  animation: titleGlow 3s ease-in-out infinite;
  font-family: 'Inter', sans-serif;
  letter-spacing: -1px;
  line-height: 1.1;
}

.landing-title .title-sub {
  display: block;
  font-size: 22px;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 2px;
  font-family: 'Inter', sans-serif;
  text-transform: uppercase;
}

@keyframes titleGlow {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.2) drop-shadow(0 0 20px rgba(0, 212, 255, 0.3)); }
}

.landing-description {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
}

.landing-actions {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  margin-bottom: var(--space-2xl);
}

.cta-button {
  position: relative;
  padding: var(--space-lg) var(--space-2xl);
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-pink));
  border: none;
  border-radius: var(--radius-xl);
  color: white;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 8px 32px rgba(0, 212, 255, 0.3);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-family: 'Inter', sans-serif;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 212, 255, 0.4);
}

.button-glow {
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: left 0.5s ease;
}

.cta-button:hover .button-glow {
  left: 100%;
}

.secondary-button {
  padding: var(--space-lg) var(--space-xl);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  backdrop-filter: blur(10px);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-family: 'Inter', sans-serif;
}

.secondary-button:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--primary-blue);
  transform: translateY(-1px);
}

/* 特性网格 */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
  max-width: 900px;
}

.feature-card {
  padding: var(--space-2xl);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-large);
  backdrop-filter: blur(20px);
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(0, 212, 255, 0.05) 0%, 
    rgba(236, 72, 153, 0.05) 50%, 
    rgba(107, 70, 193, 0.05) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

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

.feature-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--primary-blue);
  transform: translateY(-12px) scale(1.02);
  box-shadow: 0 25px 50px rgba(0, 212, 255, 0.15);
}

.feature-icon {
  margin-bottom: var(--space-lg);
  position: relative;
  z-index: 1;
  transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
  transform: scale(1.1);
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .landing-container {
    padding: var(--space-lg);
  }
  
  .cube-container {
    top: 10%;
  }
  
  .cube {
    width: 80px;
    height: 80px;
  }
  
  .cube-face {
    width: 80px;
    height: 80px;
  }
  
  .cube-face.front { transform: rotateY(0deg) translateZ(40px); }
  .cube-face.back { transform: rotateY(180deg) translateZ(40px); }
  .cube-face.right { transform: rotateY(90deg) translateZ(40px); }
  .cube-face.left { transform: rotateY(-90deg) translateZ(40px); }
  .cube-face.top { transform: rotateX(90deg) translateZ(40px); }
  .cube-face.bottom { transform: rotateX(-90deg) translateZ(40px); }
  
  .landing-content {
    margin-top: 120px;
  }
  
  .title-main {
    font-size: 32px;
  }
  
  .title-sub {
    font-size: 16px;
  }
  
  .landing-description {
    font-size: 16px;
  }
  
  .landing-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

/* 其他页面容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

/* Library 卡片库页面 */
.library-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
  min-height: 100vh;
}

.library-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.library-title {
  margin: 0 0 var(--space-sm) 0;
}

.library-title .title-main {
  display: block;
  font-size: 48px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 1px;
  margin-bottom: 2px;
  font-family: 'Inter', sans-serif;
}

.library-title .title-sub {
  display: block;
  font-size: 28px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

/* Settings 设置页面 */
.settings-container {
  max-width: 1000px;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-lg);
  min-height: 100vh;
}

.settings-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.settings-title {
  margin: 0 0 var(--space-sm) 0;
}

.settings-title .title-main {
  display: block;
  font-size: 48px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 1px;
  margin-bottom: 2px;
  font-family: 'Inter', sans-serif;
}

.settings-title .title-sub {
  display: block;
  font-size: 28px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

/* JTBD分析页面 */
.analysis-container {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-2xl);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.analysis-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.analysis-title {
  margin: 0;
}

.title-main {
  display: block;
  font-size: 64px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 2px;
  margin-bottom: 2px;
  font-family: 'Inter', sans-serif;
}

.title-sub {
  display: block;
  font-size: 36px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.title-description {
  font-size: 16px;
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: 1px;
  margin: 4px 0 0 0;
}

.analysis-input-section {
  width: 100%;
  max-width: 600px;
}

.input-wrapper {
  margin-bottom: var(--space-xl);
}

.input-label {
  display: block;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  letter-spacing: 1px;
}

.analysis-textarea {
  width: 100%;
  min-height: 120px;
  padding: var(--space-lg);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-large);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.6;
  resize: vertical;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  font-family: inherit;
}

.analysis-textarea:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
}

.analysis-textarea::placeholder {
  color: var(--text-tertiary);
}

.analysis-actions {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  margin-bottom: var(--space-xl);
}

.btn-random {
  padding: var(--space-md) var(--space-xl);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.btn-random:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-secondary);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.btn-analyze {
  padding: var(--space-md) var(--space-2xl);
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-pink));
  border: none;
  border-radius: var(--radius-xl);
  color: white;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 212, 255, 0.3);
}

.btn-analyze:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0, 212, 255, 0.4);
}

.btn-analyze::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transition: left 0.5s ease;
}

.btn-analyze:hover::before {
  left: 100%;
}

/* AI模式指示器调整 */
.ai-mode-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: var(--radius-large);
  backdrop-filter: blur(10px);
  margin-top: var(--space-lg);
}

.ai-icon {
  font-size: 24px;
  animation: aiPulse 2s ease-in-out infinite;
}

.ai-text strong {
  display: block;
  color: var(--primary-blue);
  font-size: 14px;
  margin-bottom: 2px;
}

.ai-text small {
  color: var(--text-secondary);
  font-size: 12px;
}

@media (max-width: 768px) {
  .analysis-container {
    padding: var(--space-xl) var(--space-lg);
  }
  
  .analysis-title .title-main {
    font-size: 48px;
  }
  
  .analysis-title .title-sub {
    font-size: 24px;
    letter-spacing: 1px;
  }
  
  .analysis-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .btn-random,
  .btn-analyze {
    width: 100%;
    justify-content: center;
  }
  
  .landing-title .title-main {
    font-size: 36px;
  }
  
  .landing-title .title-sub {
    font-size: 16px;
  }
}

/* 区域标题 */
.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.section-header h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-pink));
  border-radius: 2px;
}

.section-header p {
  font-size: 18px;
  color: var(--text-secondary);
}

/* 输入区域 */
.input-section {
  background: var(--bg-card);
  border-radius: var(--radius-large);
  padding: var(--space-2xl);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  margin-bottom: var(--space-xl);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(20px);
  position: relative;
}

.input-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-pink), var(--secondary-purple));
  border-radius: var(--radius-large) var(--radius-large) 0 0;
}

.input-group {
  max-width: 800px;
  margin: 0 auto;
}

.input-group textarea {
  width: 100%;
  min-height: 120px;
  padding: var(--space-md);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-medium);
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.5;
  resize: vertical;
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  backdrop-filter: blur(10px);
}

.input-group textarea:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
  background: rgba(255, 255, 255, 0.05);
}

.input-group textarea::placeholder {
  color: var(--text-tertiary);
}

.input-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-lg);
}

/* 按钮样式 */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-medium);
  font-family: var(--font-family);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  min-height: 44px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-blue), var(--secondary-purple));
  color: var(--text-inverse);
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s ease;
}

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

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-blue-hover), var(--accent-pink));
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--primary-blue);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.2);
}

/* JTBD分析区域 */
.analysis-section {
  margin-top: var(--space-xl);
}

.analysis-step {
  background: var(--bg-card);
  border-radius: var(--radius-large);
  padding: var(--space-xl);
  margin-bottom: var(--space-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-light);
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

.step-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.step-number {
  width: 40px;
  height: 40px;
  background: var(--primary-blue);
  color: var(--text-inverse);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
}

.step-header h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
}

.surface-task {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.surface-task label {
  font-weight: 500;
  color: var(--text-secondary);
}

.surface-task input {
  padding: var(--space-md);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-medium);
  font-family: var(--font-family);
  font-size: 16px;
  transition: border-color 0.2s ease;
}

.surface-task input:focus {
  outline: none;
  border-color: var(--primary-blue);
}

/* Why分析 */
.why-analysis {
  background: var(--bg-card);
  border-radius: var(--radius-large);
  padding: var(--space-xl);
  margin-top: var(--space-lg);
  box-shadow: var(--shadow-medium);
}

.why-intro {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.why-intro h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.why-intro p {
  color: var(--text-secondary);
  font-size: 16px;
}

.why-step {
  background: var(--bg-tertiary);
  border-radius: var(--radius-medium);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  position: relative;
}

.why-step::before {
  content: '';
  position: absolute;
  left: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 2px;
  background: var(--primary-blue);
}

.why-step:last-child::before {
  background: var(--success-green);
}

.why-question {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.why-answer {
  background: var(--bg-card);
  border-radius: var(--radius-small);
  padding: var(--space-md);
  border-left: 3px solid var(--primary-blue);
}

.why-answer textarea {
  width: 100%;
  border: none;
  background: transparent;
  font-family: var(--font-family);
  font-size: 14px;
  line-height: 1.5;
  resize: none;
  min-height: 60px;
}

.why-answer textarea:focus {
  outline: none;
}

.why-layer {
  margin-top: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(0, 122, 255, 0.1);
  border-radius: var(--radius-small);
  font-size: 12px;
  font-weight: 500;
  color: var(--primary-blue);
}

.why-insight {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: linear-gradient(135deg, rgba(52, 199, 89, 0.1), rgba(0, 122, 255, 0.1));
  border-radius: var(--radius-medium);
  border-left: 4px solid var(--success-green);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  transform: translateX(-10px);
  box-shadow: var(--shadow-small);
}

.insight-icon {
  font-size: 20px;
  animation: pulse 2s infinite;
}

.insight-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

@keyframes slideInInsight {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes loading {
  0% { transform: scaleX(0); }
  50% { transform: scaleX(1); }
  100% { transform: scaleX(0); }
}

/* 洞察区域 */
.insight-section {
  background: linear-gradient(135deg, var(--secondary-purple) 0%, var(--accent-pink) 50%, var(--primary-blue) 100%);
  border-radius: var(--radius-large);
  padding: var(--space-2xl);
  margin-top: var(--space-xl);
  color: var(--text-inverse);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(107, 70, 193, 0.3);
}

.insight-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  animation: insightShimmer 3s ease-in-out infinite;
}

@keyframes insightShimmer {
  0% { transform: translateX(-100%) translateY(-100%); }
  100% { transform: translateX(100%) translateY(100%); }
}

.insight-header h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.insight-header p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: var(--space-xl);
}

.insight-diagram {
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-medium);
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

/* 卡片生成区域 */
.card-generation {
  margin-top: var(--space-xl);
}

.card-preview {
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

.scenario-card {
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-large);
  padding: var(--space-lg);
  box-shadow: var(--shadow-medium);
  border: 1px solid var(--border-light);
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-light);
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.card-clue-id {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 8px;
  border-radius: 4px;
}

.card-description {
  margin-bottom: var(--space-lg);
  padding: var(--space-md);
  background: rgba(0, 212, 255, 0.05);
  border-radius: var(--radius-medium);
  border-left: 3px solid var(--primary-blue);
}

.card-description p {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.5;
}

.card-content {
  margin-bottom: var(--space-lg);
}

.card-row {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.card-row .card-field {
  flex: 1;
}

.card-id {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-tertiary);
  background: var(--bg-secondary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-small);
}

.card-priority {
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-small);
  font-size: 12px;
  font-weight: 600;
}

.card-priority.high {
  background: var(--error-red);
  color: var(--text-inverse);
}

.card-priority.medium {
  background: var(--warning-orange);
  color: var(--text-inverse);
}

.card-priority.low {
  background: var(--secondary-gray);
  color: var(--text-inverse);
}

.card-field {
  margin-bottom: var(--space-sm);
}

.card-field label {
  display: block;
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 12px;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-field-content {
  color: var(--text-primary);
  font-size: 13px;
  line-height: 1.4;
  background: rgba(255, 255, 255, 0.02);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-small);
  border: 1px solid var(--border-light);
}

.card-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-xl);
}

/* AI模式指示器 */
.ai-mode-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background: linear-gradient(135deg, rgba(0, 122, 255, 0.1), rgba(52, 199, 89, 0.1));
  border: 1px solid var(--primary-blue);
  border-radius: var(--radius-medium);
  animation: aiModeGlow 2s infinite;
}

.ai-icon {
  font-size: 24px;
  animation: aiPulse 1.5s infinite;
}

.ai-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ai-text strong {
  color: var(--primary-blue);
  font-size: 14px;
}

.ai-text small {
  color: var(--text-secondary);
  font-size: 12px;
}

@keyframes aiModeGlow {
  0%, 100% { box-shadow: 0 0 5px rgba(0, 122, 255, 0.3); }
  50% { box-shadow: 0 0 15px rgba(0, 122, 255, 0.5); }
}

@keyframes aiPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

@keyframes fadeInQuestion {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* AI标识 */
.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  background: linear-gradient(135deg, var(--primary-blue), var(--success-green));
  color: white;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--radius-small);
  margin-bottom: 8px;
  animation: aiGlow 2s infinite;
}

@keyframes aiGlow {
  0%, 100% { box-shadow: 0 0 5px rgba(0, 122, 255, 0.5); }
  50% { box-shadow: 0 0 12px rgba(0, 122, 255, 0.8); }
}

/* 卡片库区域 */
.cards-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-xl);
  padding: 0;
}

.view-toggle {
  display: flex;
  gap: var(--space-sm);
}

.toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-medium);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.toggle-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border-color: var(--text-secondary);
  transform: translateY(-1px);
}

.toggle-btn.active {
  background: var(--primary-blue);
  color: white;
  border-color: var(--primary-blue);
  box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.cards-filter select {
  padding: var(--space-sm) var(--space-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-medium);
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-family);
  cursor: pointer;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

.cards-filter select:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.2);
}

.cards-filter select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

/* 卡片展示 */
.cards-display {
  min-height: 400px;
}

.cards-display.grid-view {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
}

/* 网格视图优化 - 只显示到原始摘录 */
.cards-display.grid-view .card-field-hidden {
  display: none;
}

.cards-display.grid-view .card-field-last {
  margin-bottom: var(--space-md);
}

.cards-display.grid-view .scenario-card {
  height: auto;
  max-height: 400px;
}

.cards-display.carousel-view {
  display: block;
  position: relative;
  width: 100%;
  height: auto;
  min-height: 70vh;
  overflow: hidden;
  padding: var(--space-2xl) 0;
  perspective: 1000px;
}

.carousel-container {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.cards-display.carousel-view .scenario-card {
  width: 380px;
  height: auto;
  position: absolute;
  transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-large);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* 左侧卡片 - 平衡布局 */
.cards-display.carousel-view .scenario-card.card-left {
  left: 50%;
  top: 50%;
  transform: translateX(-50%) translateY(-50%) translateX(-300px) scale(0.85) rotateY(15deg) translateZ(-100px);
  opacity: 0.6;
  z-index: 1;
}

/* 中心卡片 - 绝对居中布局 */
.cards-display.carousel-view .scenario-card.card-center {
  left: 50%;
  top: 50%;
  transform: translateX(-50%) translateY(-50%) scale(1);
  opacity: 1;
  z-index: 3;
  box-shadow: 0 25px 80px rgba(0, 212, 255, 0.3), 0 0 0 1px rgba(0, 212, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(0, 212, 255, 0.3);
  margin-left: -190px; /* 确保水平居中 */
}

/* 右侧卡片 - 平衡布局 */
.cards-display.carousel-view .scenario-card.card-right {
  left: 50%;
  top: 50%;
  transform: translateX(-50%) translateY(-50%) translateX(300px) scale(0.85) rotateY(-15deg) translateZ(-100px);
  opacity: 0.6;
  z-index: 1;
}

/* 隐藏的卡片 */
.cards-display.carousel-view .scenario-card.card-hidden {
  left: 50%;
  top: 50%;
  transform: translateX(-50%) translateY(-50%) scale(0.6) translateX(400px);
  opacity: 0;
  z-index: 0;
  pointer-events: none;
}

/* 默认卡片位置（兼容旧版本） */
.cards-display.carousel-view .scenario-card:not(.card-left):not(.card-center):not(.card-right):not(.card-hidden) {
  transform: scale(0.85) rotateY(-15deg) translateZ(-100px);
  opacity: 0.6;
  z-index: 1;
}

.cards-display.carousel-view .scenario-card:hover {
  transform: scale(0.9) rotateY(-8deg) translateZ(-50px);
  opacity: 0.8;
}

/* 中心卡片悬停效果 */
.cards-display.carousel-view .scenario-card.card-center:hover {
  transform: translateX(-50%) translateY(-50%) scale(1.02);
  opacity: 1;
  box-shadow: 0 30px 100px rgba(0, 212, 255, 0.4), 0 0 0 1px rgba(0, 212, 255, 0.4);
}

/* 轮播模式下也只显示到原始摘录 */
.cards-display.carousel-view .card-field-hidden {
  display: none;
}

/* 轮播卡片内容样式优化 */
.cards-display.carousel-view .card-content {
  margin-bottom: var(--space-lg);
}

/* 添加深度效果 */
.cards-display.carousel-view::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    ellipse at center,
    transparent 30%,
    rgba(0, 0, 0, 0.3) 70%
  );
  pointer-events: none;
  z-index: 0;
}

/* 卡片内容在轮播模式下的调整 */
.cards-display.carousel-view .card-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
}

.cards-display.carousel-view .card-title {
  font-size: 18px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.cards-display.carousel-view .card-clue-id {
  font-size: 12px;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* 轮播模式下的卡片描述样式 */
.cards-display.carousel-view .card-description {
  margin-bottom: var(--space-md);
  padding: 0;
  background: transparent;
  border-left: none;
}

.cards-display.carousel-view .card-description p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.05);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-medium);
  border-left: 3px solid var(--primary-blue);
  margin: 0;
}

/* 动画增强 - 配合绝对居中布局的浮动效果 */
@keyframes cardFloat {
  0%, 100% { 
    transform: translateX(-50%) translateY(-50%) scale(1) translateY(0px); 
  }
  50% { 
    transform: translateX(-50%) translateY(-50%) scale(1) translateY(-10px); 
  }
}

.cards-display.carousel-view .scenario-card.card-center {
  animation: cardFloat 6s ease-in-out infinite;
}

.cards-display.carousel-view .card-field {
  margin-bottom: var(--space-sm);
}

.cards-display.carousel-view .card-field label {
  font-size: 12px;
  margin-bottom: 4px;
}

.cards-display.carousel-view .card-field-content {
  font-size: 13px;
  line-height: 1.4;
  padding: var(--space-xs) var(--space-sm);
}



.cards-display.carousel-view .card-row {
  margin-bottom: var(--space-sm);
}

.cards-display.carousel-view .card-footer {
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
}

/* 轮播控制按钮 */
.carousel-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2xl);
  margin-top: var(--space-xl);
  position: relative;
  z-index: 10;
}

.carousel-arrow {
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  backdrop-filter: blur(15px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  color: var(--text-primary);
  position: relative;
  overflow: hidden;
}

.carousel-arrow::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(255, 0, 150, 0.1));
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: 50%;
}

.carousel-arrow:hover {
  background: rgba(0, 212, 255, 0.15);
  border-color: rgba(0, 212, 255, 0.4);
  transform: scale(1.1);
  box-shadow: 0 12px 40px rgba(0, 212, 255, 0.25);
}

.carousel-arrow:hover::before {
  opacity: 1;
}

.carousel-arrow:active {
  transform: scale(0.95);
}

.carousel-arrow svg {
  width: 28px;
  height: 28px;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1;
}

.carousel-arrow:hover svg {
  transform: scale(1.1);
  filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.6));
}

/* 轮播模式滚动条样式 */
.cards-display.carousel-view::-webkit-scrollbar {
  height: 8px;
}

/* 卡片点击提示 */
.scenario-card {
  cursor: pointer;
  position: relative;
}

.scenario-card::after {
  content: '点击查看完整信息';
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0, 212, 255, 0.1);
  color: var(--primary-blue);
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 10px;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  border: 1px solid rgba(0, 212, 255, 0.3);
}

.scenario-card:hover::after {
  opacity: 1;
}

/* 卡片详情模态框 */
.card-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.card-modal.active {
  display: flex;
}

.card-modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-large);
  padding: var(--space-2xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  backdrop-filter: blur(20px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

.card-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border-light);
  padding-bottom: var(--space-md);
}

.card-modal-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.card-modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.card-modal-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.card-modal-body {
  color: var(--text-primary);
}

.card-modal-body .card-field {
  margin-bottom: var(--space-md);
}

.card-modal-body .card-field label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
  display: block;
}

.card-modal-body .card-field-content {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-medium);
  padding: var(--space-sm) var(--space-md);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-primary);
}

.card-modal-body .card-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.card-modal-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-light);
}

.card-modal-date {
  font-size: 12px;
  color: var(--text-secondary);
}

.card-modal-actions {
  display: flex;
  gap: var(--space-sm);
}

.cards-display.carousel-view::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
}

.cards-display.carousel-view::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-pink));
  border-radius: 4px;
  transition: all 0.3s ease;
}

.cards-display.carousel-view::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(90deg, var(--primary-blue-hover), var(--accent-pink));
}

.card-mini {
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}

.card-mini:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-large);
}

.card-rating {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-small);
  padding: var(--space-xs) var(--space-sm);
  font-size: 12px;
  font-weight: 600;
  color: var(--warning-orange);
}

.card-footer {
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-date {
  font-size: 12px;
  color: var(--text-tertiary);
}

.card-actions-mini {
  display: flex;
  gap: var(--space-xs);
}

.icon-btn {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg-secondary);
  border-radius: var(--radius-small);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--text-secondary);
}

.icon-btn:hover {
  background: var(--primary-blue);
  color: var(--text-inverse);
}

/* 设置区域 */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.setting-group {
  background: var(--bg-card);
  border-radius: var(--radius-large);
  padding: var(--space-xl);
  box-shadow: var(--shadow-small);
}

.setting-group h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-lg);
}

.setting-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-light);
}

.setting-item:last-child {
  border-bottom: none;
}

.setting-item label {
  font-weight: 500;
  color: var(--text-primary);
}

.setting-item select,
.setting-item input[type="checkbox"] {
  font-family: var(--font-family);
}

.setting-item select {
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-small);
  background: var(--bg-primary);
}

.setting-item.full-width {
  flex-direction: column;
  align-items: stretch;
}

.setting-item.full-width label {
  margin-bottom: var(--space-xs);
}

.setting-item input[type="password"] {
  padding: var(--space-sm);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-small);
  font-family: var(--font-family);
  font-size: 14px;
  background: var(--bg-primary);
}

.setting-item input[type="password"]:focus {
  outline: none;
  border-color: var(--primary-blue);
}

/* 模态框 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-overlay);
  z-index: 1000;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.modal-content {
  background: var(--bg-card);
  border-radius: var(--radius-large);
  max-width: 600px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: var(--shadow-large);
  animation: slideUp 0.3s ease;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--border-light);
}

.modal-header h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
}

.close-btn {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg-secondary);
  border-radius: var(--radius-small);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.close-btn:hover {
  background: var(--error-red);
  color: var(--text-inverse);
}

.modal-body {
  padding: var(--space-xl);
}

/* 评分系统 */
.rating-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.rating-category {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-medium);
}

.rating-category label {
  font-weight: 600;
  color: var(--text-primary);
}

.star-rating {
  display: flex;
  gap: 2px;
}

.star {
  font-size: 20px;
  color: var(--border-medium);
  cursor: pointer;
  transition: color 0.2s ease;
  user-select: none;
}

.star:hover,
.star.active {
  color: var(--warning-orange);
}

.rating-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  margin-top: var(--space-lg);
}

/* 动画 */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { 
    opacity: 0;
    transform: translateY(20px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .nav-container {
    padding: 0 var(--space-md);
  }
  
  .main-content {
    padding: var(--space-lg) var(--space-md);
  }
  
  .input-section,
  .analysis-step,
  .why-analysis {
    padding: var(--space-lg);
  }
  
  .section-header h2 {
    font-size: 24px;
  }
  
  .cards-controls {
    flex-direction: column;
    gap: var(--space-md);
    align-items: stretch;
  }
  
  .cards-display.grid-view {
    grid-template-columns: 1fr;
  }
  
  .cards-display.carousel-view {
    min-height: 60vh;
    padding: var(--space-lg) var(--space-sm);
    perspective: 800px;
  }
  
  .cards-display.carousel-view .scenario-card {
    min-width: 300px;
    max-width: 300px;
  }
  
  /* 移动端简化3D效果 - 绝对居中布局 */
  .cards-display.carousel-view .scenario-card.card-left {
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%) translateX(-240px) scale(0.9);
    opacity: 0.7;
  }
  
  .cards-display.carousel-view .scenario-card.card-center {
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%) scale(1);
    opacity: 1;
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.2);
  }
  
  .cards-display.carousel-view .scenario-card.card-right {
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%) translateX(240px) scale(0.9);
    opacity: 0.7;
  }
  
  .cards-display.carousel-view .scenario-card.card-hidden {
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%) translateX(400px) scale(0.6);
    opacity: 0;
  }
  
  .carousel-controls {
    gap: var(--space-lg);
  }
  
  .carousel-arrow {
    width: 50px;
    height: 50px;
  }
  
  .carousel-arrow svg {
    width: 24px;
    height: 24px;
  }
  
  .cards-display.carousel-view .card-field-content {
    font-size: 12px;
  }
  
  .cards-display.carousel-view .card-description p {
    font-size: 13px;
  }
  
  .settings-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
  
  .card-field {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }
  
  .settings-grid {
    grid-template-columns: 1fr;
  }
  
  .modal-content {
    width: 95%;
    margin: var(--space-md);
  }
}

/* 辅助工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mt-lg { margin-top: var(--space-lg); }
.hidden { display: none; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-md { gap: var(--space-md); }

/* 现代化交互动画 */
.scenario-card:hover {
  animation: cardFloat 0.6s ease;
}

@keyframes cardFloat {
  0% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
  100% { transform: translateY(0); }
}

.btn-primary,
.btn-secondary {
  position: relative;
  overflow: hidden;
}

/* 点击波纹效果 */
.btn-primary::after,
.btn-secondary::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.3s ease, height 0.3s ease;
}

.btn-primary:active::after,
.btn-secondary:active::after {
  width: 300px;
  height: 300px;
}

/* 页面加载动画 */
.section {
  animation: sectionFadeIn 0.8s ease;
}

@keyframes sectionFadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 卡片出现动画 */
.scenario-card {
  animation: cardAppear 0.6s ease;
}

@keyframes cardAppear {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* 打印样式 */
@media print {
  .main-nav,
  .input-actions,
  .card-actions,
  .card-actions-mini,
  .modal {
    display: none;
  }
  
  .scenario-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid var(--border-dark);
  }
}