/* ================================
   CDP Bridge 宣传页样式
   ================================ */

:root {
  --wolf-blue: #0ea5e9;
  --wolf-blue-hover: #0284c7;
  --wolf-blue-light: rgba(14, 165, 233, 0.1);
  --wolf-purple: #8b5cf6;
  --wolf-purple-light: rgba(139, 92, 246, 0.1);
  --wolf-cyan: #06b6d4;
  --wolf-green: #22c55e;
  
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --bg-card: rgba(31, 41, 55, 0.6);
  --bg-card-hover: rgba(55, 65, 81, 0.6);
  
  --text-primary: #f8fafc;
  --text-secondary: rgba(248, 250, 252, 0.7);
  --text-tertiary: rgba(248, 250, 252, 0.5);
  --text-inverse: #0a0e1a;
  
  --border-color: rgba(14, 165, 233, 0.15);
  --border-color-strong: rgba(14, 165, 233, 0.3);
  --border-glow: rgba(14, 165, 233, 0.5);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 9999px;
  
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 80px;
  
  --font-sans: 'MiSans VF', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, Roboto, Arial, 'PingFang SC', 'Microsoft YaHei UI', sans-serif;
  
  --max-width: 734px;
  
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 350ms;
  --duration-glow: 400ms;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(14, 165, 233, 0.3);
  --shadow-purple: 0 0 30px rgba(139, 92, 246, 0.3);
}

/* ================================
   基础重置
   ================================ */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 20%, rgba(14, 165, 233, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(6, 182, 212, 0.05) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(rgba(14, 165, 233, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 165, 233, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(60px, 60px); }
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
}

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

ul, ol {
  list-style: none;
}

/* ================================
   页面容器
   ================================ */

.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 1;
}

.page-content {
  flex: 1;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  position: relative;
  z-index: 1;
}

/* ================================
   Header 导航栏 - Wolf Bridge 科技风格
   ================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 64px;
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.logo-icon {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--wolf-blue), var(--wolf-purple));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 14px;
  font-weight: 700;
  box-shadow: 0 0 15px rgba(14, 165, 233, 0.4);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: 15px;
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}

.nav-links a:hover {
  color: var(--text-primary);
}

/* P0: 导航链接下划线动画 */
.nav-links a {
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--wolf-blue), var(--wolf-purple));
  transition: width 0.25s ease;
  box-shadow: 0 0 8px rgba(14, 165, 233, 0.6);
}

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

.nav-links a.active::after {
  width: 100%;
}

/* P0: Logo hover 旋转效果 */
.logo:hover .logo-icon {
  transform: rotate(-5deg) scale(1.05);
}

.logo-icon {
  transition: transform 0.25s ease;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* 按钮样式 - Wolf Bridge 科技风格 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  transition: all var(--duration-fast) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--duration-fast);
}

.btn-primary {
  background: linear-gradient(135deg, var(--wolf-blue), var(--wolf-purple));
  color: var(--text-inverse);
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(14, 165, 233, 0.5), 0 0 60px rgba(139, 92, 246, 0.3);
}

.btn-secondary {
  background: rgba(14, 165, 233, 0.1);
  color: var(--wolf-blue);
  border: 1px solid rgba(14, 165, 233, 0.3);
}

.btn-secondary:hover {
  background: rgba(14, 165, 233, 0.15);
  border-color: var(--wolf-blue);
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.2);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color-strong);
}

.btn-outline:hover {
  background: var(--bg-card);
  border-color: var(--wolf-blue);
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.2);
}

/* ================================
   Hero 区域 - Wolf Bridge 科技风格
   ================================ */

.hero {
  padding: var(--space-4xl) 0;
  text-align: center;
  background: linear-gradient(180deg, rgba(14, 165, 233, 0.03) 0%, transparent 100%);
  position: relative;
  overflow: hidden;
}

#particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* 首页全屏粒子背景 */
#home-particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 6px 14px;
  background: rgba(14, 165, 233, 0.1);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--wolf-blue);
  margin-bottom: var(--space-lg);
  border: 1px solid rgba(14, 165, 233, 0.3);
  box-shadow: 0 0 15px rgba(14, 165, 233, 0.15);
}

.hero-title {
  font-size: 40px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto var(--space-xl);
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.hero-tags {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-tag {
  font-size: 13px;
  color: var(--text-secondary);
  padding: 4px 12px;
  background: rgba(31, 41, 55, 0.5);
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-color);
}

.hero-highlights {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3xl);
  margin-top: var(--space-2xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--border-color);
}

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

.highlight-value {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
}

.highlight-label {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-top: var(--space-xs);
}

/* ================================
   Section 通用样式
   ================================ */

.section {
  padding: var(--space-4xl) 0;
}

.section-title {
  font-size: 28px;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: var(--space-2xl);
}

/* ================================
   功能特点 - Wolf Bridge 科技风格
   ================================ */

.features {
  background: transparent;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.feature-card {
  padding: var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  transition: all var(--duration-normal) var(--ease-out);
  transform-style: preserve-3d;
  perspective: 1000px;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--wolf-blue), transparent);
  opacity: 0;
  transition: opacity var(--duration-normal);
}

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

/* P1: Features 3D 悬停效果 */
.feature-card:hover {
  border-color: var(--wolf-blue);
  transform: translateY(-4px) rotateX(2deg);
  box-shadow: var(--shadow-glow);
}

.feature-card:hover .feature-icon {
  transform: scale(1.1) rotate(-5deg);
}

.feature-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.2), rgba(139, 92, 246, 0.2));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--wolf-blue);
  margin-bottom: var(--space-md);
  transition: transform 0.3s ease;
  box-shadow: 0 0 15px rgba(14, 165, 233, 0.2);
}

.feature-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

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

/* ================================
   安装步骤 - Wolf Bridge 科技手风琴风格
   ================================ */

.install {
  background: transparent;
}

.steps-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.step-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.step-card:hover {
  border-color: var(--wolf-blue);
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.1);
}

.step-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  cursor: pointer;
  user-select: none;
}

.step-num {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--wolf-blue), var(--wolf-purple));
  color: var(--text-inverse);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  flex-shrink: 0;
  box-shadow: 0 0 15px rgba(14, 165, 233, 0.4);
}

.step-title {
  flex: 1;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
}

.step-arrow {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: transform var(--duration-normal) var(--ease-out);
}

.step-card.expanded .step-arrow {
  transform: rotate(180deg);
}

.step-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out);
}

.step-card.expanded .step-content {
  max-height: 1000px;
}

.step-content-inner {
  padding: 0 var(--space-lg) var(--space-lg);
  padding-left: calc(32px + var(--space-md) + var(--space-lg));
}

.step-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.step-image {
  margin-bottom: var(--space-md);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.step-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* 安装命令展示 */
.install-commands {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.command-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.command-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--wolf-blue);
  background: rgba(14, 165, 233, 0.15);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  min-width: 32px;
  text-align: center;
  border: 1px solid rgba(14, 165, 233, 0.3);
}

.command-code {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 13px;
  color: var(--text-primary);
  background: rgba(10, 14, 26, 0.8);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  flex: 1;
}

.step-code {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 13px;
  color: var(--wolf-cyan);
  background: rgba(10, 14, 26, 0.9);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(6, 182, 212, 0.3);
  margin-top: 12px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.5;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.1);
}

/* 浏览器下载按钮 */
.browser-buttons {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.browser-btn {
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  background: rgba(31, 41, 55, 0.5);
  color: var(--text-primary);
  border: 1px solid var(--border-color-strong);
  border-radius: var(--radius-pill);
  transition: all var(--duration-fast);
}

.browser-btn:hover {
  border-color: var(--wolf-blue);
  color: var(--wolf-blue);
  box-shadow: 0 0 15px rgba(14, 165, 233, 0.2);
}

.skip-link {
  display: inline-block;
  margin-top: var(--space-md);
  font-size: 14px;
  color: var(--wolf-blue);
}

.skip-link:hover {
  text-decoration: underline;
  text-shadow: 0 0 10px rgba(14, 165, 233, 0.5);
}

.step-action-buttons {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  justify-content: center;
}

.step-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-primary);
  background: rgba(14, 165, 233, 0.1);
  border: 1px solid rgba(14, 165, 233, 0.4);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.25s ease;
  box-shadow: 0 0 10px rgba(14, 165, 233, 0.1);
  min-width: 160px;
}

.step-action-btn:hover {
  background: rgba(14, 165, 233, 0.2);
  border-color: rgba(14, 165, 233, 0.7);
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.3);
  transform: translateY(-1px);
}

/* ================================
   场景演示 - Wolf Bridge Tab 风格
   ================================ */

.scenarios {
  background: transparent;
}

.scenario-tabs {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: var(--space-md);
  flex-wrap: wrap;
}

.scenario-tab {
  padding: 10px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border-radius: var(--radius-pill);
  transition: all var(--duration-fast);
  border: 1px solid transparent;
}

.scenario-tab:hover {
  color: var(--text-primary);
  background: rgba(14, 165, 233, 0.1);
  border-color: rgba(14, 165, 233, 0.3);
}

.scenario-tab.active {
  color: var(--wolf-blue);
  background: rgba(14, 165, 233, 0.15);
  border-color: var(--wolf-blue);
  box-shadow: 0 0 15px rgba(14, 165, 233, 0.2);
}

/* P1: Tab 内容切换动画 */
.scenario-content {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.scenario-panel {
  display: none;
  padding: var(--space-xl);
}

.scenario-panel.active {
  display: block;
  animation: tabFadeIn 0.3s ease forwards;
}

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

/* P1: 场景图片 hover 放大 */
.scenario-image img {
  transition: transform 0.5s ease;
}

.scenario-image:hover img {
  transform: scale(1.02);
}

.scenario-header {
  margin-bottom: var(--space-lg);
}

.scenario-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.scenario-problem {
  font-size: 14px;
  color: var(--text-tertiary);
  margin-bottom: var(--space-sm);
}

.scenario-problem strong {
  color: var(--text-secondary);
}

.scenario-solution {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.scenario-image {
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.scenario-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scenario-placeholder {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  color: var(--text-tertiary);
  flex: 1;
  min-height: 300px;
  background: var(--bg-secondary);
}

.scenario-placeholder.show {
  display: flex;
}

.scenario-placeholder span {
  font-size: 14px;
}

.scenario-placeholder small {
  font-size: 12px;
  opacity: 0.7;
}

/* ================================
   科技装饰背景
   ================================ */

.scenario-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-md);
}

.scenario-image .tech-grid {
  position: absolute;
  inset: 0;
  background-size: 30px 30px;
  opacity: 0.5;
  z-index: 0;
}

.scenario-image .tech-glow {
  position: absolute;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.6;
  z-index: 0;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.scenario-image .tech-icon {
  position: relative;
  z-index: 1;
  opacity: 0.9;
  transform: translateY(0);
  transition: transform 0.3s ease;
}

.scenario-image:hover .tech-icon {
  transform: translateY(-4px);
}

.scenario-image .tech-label {
  position: relative;
  z-index: 1;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.8;
}

/* 蓝色主题 - 多账号管理 */
.scenario-image.theme-blue {
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(139, 92, 246, 0.05) 100%);
  color: var(--wolf-blue);
  border: 1px solid rgba(14, 165, 233, 0.2);
}
.scenario-image.theme-blue .tech-grid {
  background-image:
    linear-gradient(rgba(14, 165, 233, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 165, 233, 0.15) 1px, transparent 1px);
}
.scenario-image.theme-blue .tech-glow {
  background: radial-gradient(circle, rgba(14, 165, 233, 0.4) 0%, transparent 70%);
}

/* 绿色主题 - 隐私数据处理 */
.scenario-image.theme-green {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(14, 165, 233, 0.05) 100%);
  color: var(--wolf-green);
  border: 1px solid rgba(34, 197, 94, 0.2);
}
.scenario-image.theme-green .tech-grid {
  background-image:
    linear-gradient(rgba(34, 197, 94, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 197, 94, 0.15) 1px, transparent 1px);
}
.scenario-image.theme-green .tech-glow {
  background: radial-gradient(circle, #4ade80 0%, transparent 70%);
}

/* 紫色主题 - 批量数据采集 */
.scenario-image.theme-purple {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(14, 165, 233, 0.05) 100%);
  color: var(--wolf-purple);
  border: 1px solid rgba(139, 92, 246, 0.2);
}
.scenario-image.theme-purple .tech-grid {
  background-image:
    linear-gradient(rgba(139, 92, 246, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 92, 246, 0.15) 1px, transparent 1px);
}
.scenario-image.theme-purple .tech-glow {
  background: radial-gradient(circle, rgba(139, 92, 246, 0.4) 0%, transparent 70%);
}

/* 橙色主题 - 远程浏览器控制 */
.scenario-image.theme-orange {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.1) 0%, rgba(14, 165, 233, 0.05) 100%);
  color: #fb923c;
  border: 1px solid rgba(249, 115, 22, 0.2);
}
.scenario-image.theme-orange .tech-grid {
  background-image:
    linear-gradient(rgba(249, 115, 22, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(249, 115, 22, 0.15) 1px, transparent 1px);
}
.scenario-image.theme-orange .tech-glow {
  background: radial-gradient(circle, rgba(249, 115, 22, 0.4) 0%, transparent 70%);
}

/* 青色主题 - 客服坐席自动化 */
.scenario-image.theme-cyan {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.1) 0%, rgba(14, 165, 233, 0.05) 100%);
  color: var(--wolf-cyan);
  border: 1px solid rgba(6, 182, 212, 0.2);
}
.scenario-image.theme-cyan .tech-grid {
  background-image:
    linear-gradient(rgba(6, 182, 212, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(6, 182, 212, 0.15) 1px, transparent 1px);
}
.scenario-image.theme-cyan .tech-glow {
  background: radial-gradient(circle, rgba(6, 182, 212, 0.4) 0%, transparent 70%);
}

/* 二维码 */
.qr-section {
  margin-top: var(--space-xl);
}

.qr-container {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  transition: all var(--duration-fast);
}

.qr-container:hover {
  border-color: var(--wolf-blue);
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.15);
}

.qr-image {
  width: 180px;
  height: 180px;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-color-strong);
  padding: 8px;
  background: white;
  transition: transform 0.3s ease;
}

.qr-container:hover .qr-image {
  transform: scale(1.02);
}

.qr-label {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ================================
   FAQ - Wolf Bridge 科技折叠风格
   ================================ */

.faq {
  background: transparent;
}

.faq-list {
  max-width: var(--max-width);
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-color);
}

.faq-item:first-child {
  border-top: 1px solid var(--border-color);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  cursor: pointer;
  user-select: none;
  transition: background 0.2s ease;
}

.faq-question:hover {
  background: rgba(14, 165, 233, 0.05);
}

.faq-question:hover span:first-child {
  color: var(--wolf-blue);
  text-shadow: 0 0 10px rgba(14, 165, 233, 0.3);
}

.faq-question span:first-child {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  transition: color 0.2s ease;
}

.faq-arrow {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: transform var(--duration-normal) var(--ease-out);
  flex-shrink: 0;
}

.faq-item.expanded .faq-arrow {
  transform: rotate(90deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-normal) var(--ease-out);
}

.faq-item.expanded .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding-bottom: var(--space-lg);
}

.faq-answer p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ================================
   Footer - Wolf Bridge 科技风格
   ================================ */

.site-footer {
  background: rgba(10, 14, 26, 0.95);
  color: var(--text-primary);
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid var(--border-color);
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--wolf-blue), var(--wolf-purple), transparent);
  opacity: 0.5;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
  position: relative;
  z-index: 1;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-col a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: all var(--duration-fast);
}

.footer-col a:hover {
  color: var(--wolf-blue);
  text-shadow: 0 0 8px rgba(14, 165, 233, 0.3);
}

.footer-bottom {
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  position: relative;
  z-index: 1;
}

.footer-copyright {
  font-size: 13px;
  color: var(--text-tertiary);
}

.footer-version {
  font-size: 13px;
  color: var(--wolf-blue);
}

/* ================================
   动画
   ================================ */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ================================
   技能市场
   ================================ */

.skills-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.skills-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

@media (max-width: 768px) {
  .skills-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .skills-header-actions {
    flex-wrap: wrap;
  }
}

/* 上传模态框 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

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

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

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

.modal-header h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: color 0.2s;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-content form {
  padding: var(--space-lg);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-group .required {
  color: var(--wolf-red);
}

.form-group input[type="text"],
.form-group input[type="file"],
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--wolf-blue);
}

.form-group input[type="file"] {
  padding: 8px;
  cursor: pointer;
}

.form-group small {
  display: block;
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 4px;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-color);
}

.upload-msg {
  margin-top: var(--space-md);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  display: none;
}

.upload-msg.success {
  display: block;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--wolf-green);
}

.upload-msg.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--wolf-red);
}

/* Header 登录状态 */
.user-name {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  background: rgba(14, 165, 233, 0.1);
  border: 1px solid rgba(14, 165, 233, 0.2);
  border-radius: 9999px;
  font-size: 13px;
  color: var(--wolf-blue);
  font-weight: 500;
}

.btn-sm {
  padding: 6px 14px;
  font-size: 13px;
}

.skills {
  background: transparent;
}

.section-subtitle {
  text-align: center;
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.skill-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--border-color);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--wolf-blue), transparent);
  opacity: 0;
  transition: opacity var(--duration-normal);
}

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

.skill-card:hover {
  border-color: var(--wolf-blue);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.skill-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.2), rgba(139, 92, 246, 0.2));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--wolf-blue);
  margin-bottom: var(--space-md);
  transition: transform 0.3s ease;
  box-shadow: 0 0 15px rgba(14, 165, 233, 0.2);
}

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

.skill-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.skill-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}

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

.skill-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
  text-decoration: none;
}

.skill-btn-download {
  background: rgba(14, 165, 233, 0.1);
  color: var(--wolf-blue);
  border: 1px solid rgba(14, 165, 233, 0.3);
}

.skill-btn-download:hover {
  background: rgba(14, 165, 233, 0.2);
  box-shadow: 0 0 15px rgba(14, 165, 233, 0.2);
}

.skill-btn-ps1 {
  background: rgba(31, 41, 55, 0.5);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.skill-btn-ps1:hover {
  background: var(--border-color);
  color: var(--text-primary);
}

.skill-btn-admin {
  background: rgba(139, 92, 246, 0.1);
  color: var(--wolf-purple);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.skill-btn-admin:hover {
  background: rgba(139, 92, 246, 0.2);
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.2);
}

.skills-loading,
.skills-empty,
.skills-error {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-3xl);
  color: var(--text-tertiary);
}

.skills-loading .spinner {
  animation: spin 1s linear infinite;
}

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

/* ================================
   响应式
   ================================ */

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }
  
  .hero {
    padding: var(--space-3xl) 0;
  }
  
  .hero-title {
    font-size: 28px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .hero-highlights {
    gap: var(--space-xl);
  }
  
  .highlight-value {
    font-size: 22px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
  
  .nav-links {
    display: none;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .step-content-inner {
    padding-left: var(--space-lg);
  }
  
  .scenario-tabs {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
  }
  
  .scenario-tab {
    white-space: nowrap;
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
  }
}

/* ================================
   Kimi Hero 动效 - 方案 A
   背景呼吸 + 文字逐字显现 + 按钮入场动画
   ================================ */

/* Hero 背景渐变呼吸 */
.hero {
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    ellipse at center,
    rgba(23, 131, 255, 0.06) 0%,
    transparent 50%
  );
  transform: translate(-50%, -50%);
  animation: breathe 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes breathe {
  0%, 100% { 
    opacity: 0.6; 
    transform: translate(-50%, -50%) scale(1); 
  }
  50% { 
    opacity: 1; 
    transform: translate(-50%, -50%) scale(1.15); 
  }
}

/* 标题逐字显现 */
.hero-title {
  overflow: hidden;
  opacity: 0;
  animation: titleReveal 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
}

@keyframes titleReveal {
  from { 
    opacity: 0; 
    transform: translateY(40px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

/* 徽章弹入 */
.hero-badge {
  opacity: 0;
  transform: scale(0.8);
  animation: badgeBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) 0.05s forwards;
}

@keyframes badgeBounce {
  from { 
    opacity: 0; 
    transform: scale(0.8); 
  }
  to { 
    opacity: 1; 
    transform: scale(1); 
  }
}

/* 副标题淡入 */
.hero-subtitle {
  opacity: 0;
  animation: fadeSlideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.5s forwards;
}

/* 按钮依次淡入上浮 */
.hero-buttons .btn:nth-child(1) { 
  opacity: 0; 
  transform: translateY(20px);
  animation: fadeSlideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.75s forwards; 
}
.hero-buttons .btn:nth-child(2) { 
  opacity: 0; 
  transform: translateY(20px);
  animation: fadeSlideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) 0.9s forwards; 
}

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

/* 标签依次淡入 */
.hero-tags .hero-tag:nth-child(1) { opacity: 0; animation: fadeIn 0.5s ease-out 1.05s forwards; }
.hero-tags .hero-tag:nth-child(2) { opacity: 0; animation: fadeIn 0.5s ease-out 1.15s forwards; }
.hero-tags .hero-tag:nth-child(3) { opacity: 0; animation: fadeIn 0.5s ease-out 1.25s forwards; }

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

/* 亮点区域淡入 */
.hero-highlights {
  opacity: 0;
  animation: fadeIn 0.8s ease-out 1.4s forwards;
}

.highlight-item {
  opacity: 0;
  transform: translateY(15px);
}

.highlight-item:nth-child(1) { animation: fadeSlideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) 1.5s forwards; }
.highlight-item:nth-child(2) { animation: fadeSlideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) 1.6s forwards; }
.highlight-item:nth-child(3) { animation: fadeSlideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) 1.7s forwards; }
.highlight-item:nth-child(4) { animation: fadeSlideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) 1.8s forwards; }

/* 按钮 hover 增强效果 */
.hero-buttons .btn-primary {
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), 
              box-shadow 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-buttons .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(23, 131, 255, 0.35);
}

.hero-buttons .btn-secondary {
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), 
              background 0.2s ease;
}

.hero-buttons .btn-secondary:hover {
  transform: translateY(-2px);
  background: rgba(23, 131, 255, 0.12);
}

/* 向下滚动指示器 */
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  animation: scrollIndicatorFade 0.5s ease-out 2.5s forwards, scrollBounce 2s ease-in-out 3s infinite;
}

.scroll-indicator span {
  display: block;
  width: 22px;
  height: 36px;
  border: 2px solid rgba(23, 23, 23, 0.15);
  border-radius: 11px;
  position: relative;
}

.scroll-indicator span::before {
  content: '';
  position: absolute;
  top: 5px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 7px;
  background: rgba(23, 23, 23, 0.25);
  border-radius: 2px;
  animation: scrollDot 2s ease-in-out infinite;
}

@keyframes scrollIndicatorFade {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

@keyframes scrollDot {
  0%, 100% { top: 5px; opacity: 1; }
  50% { top: 16px; opacity: 0.3; }
}

/* 响应式 */
@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-tags {
    flex-direction: column;
  }
}