/* MD3 Expressive Download Page Styles */

/* CSS Variables - 青蓝色渐变主题 */
:root {
  /* Primary Colors - Cyan-Teal Gradient Theme */
  --md-primary: #06b6d4;
  --md-primary-dark: #0891b2;
  --md-on-primary: #FFFFFF;
  --md-primary-container: #cffafe;
  --md-on-primary-container: #164e63;
  --primary-gradient: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);

  /* Secondary Colors */
  --md-secondary: #14b8a6;
  --md-on-secondary: #FFFFFF;
  --md-secondary-container: #ccfbf1;
  --md-on-secondary-container: #134e4a;
  --secondary-gradient: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);

  /* Tertiary Colors */
  --md-tertiary: #3b82f6;
  --md-on-tertiary: #FFFFFF;
  --md-tertiary-container: #dbeafe;
  --md-on-tertiary-container: #1e3a8a;

  /* Error Colors */
  --md-error: #BA1A1A;
  --md-on-error: #FFFFFF;
  --md-error-container: #FFDAD6;
  --md-on-error-container: #410002;

  /* Surface Colors */
  --md-surface: #ffffff;
  --md-on-surface: #1a1a1a;
  --md-surface-variant: #f8f9fa;
  --md-on-surface-variant: #5f6368;
  --md-outline: #dadce0;
  --md-outline-variant: #e8eaed;

  /* Background Colors */
  --md-background: #f8f9fa;
  --md-on-background: #1a1a1a;

  /* Elevation - 柔和阴影 */
  --md-elevation-level0: 0px 0px 0px 0px rgba(0, 0, 0, 0);
  --md-elevation-level1: 0 2px 8px rgba(0, 0, 0, 0.04);
  --md-elevation-level2: 0 4px 16px rgba(0, 0, 0, 0.08);
  --md-elevation-level3: 0 8px 32px rgba(0, 0, 0, 0.12);
  --md-elevation-level4: 0 12px 48px rgba(0, 0, 0, 0.16);
  --md-elevation-level5: 0 16px 64px rgba(0, 0, 0, 0.20);

  /* 新增设计变量 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography Scale */
  --md-typescale-display-large-font-size: 57px;
  --md-typescale-display-large-line-height: 64px;
  --md-typescale-display-large-font-weight: 400;

  --md-typescale-display-medium-font-size: 45px;
  --md-typescale-display-medium-line-height: 52px;
  --md-typescale-display-medium-font-weight: 400;

  --md-typescale-display-small-font-size: 36px;
  --md-typescale-display-small-line-height: 44px;
  --md-typescale-display-small-font-weight: 400;

  --md-typescale-headline-large-font-size: 32px;
  --md-typescale-headline-large-line-height: 40px;
  --md-typescale-headline-large-font-weight: 400;

  --md-typescale-headline-medium-font-size: 28px;
  --md-typescale-headline-medium-line-height: 36px;
  --md-typescale-headline-medium-font-weight: 400;

  --md-typescale-headline-small-font-size: 24px;
  --md-typescale-headline-small-line-height: 32px;
  --md-typescale-headline-small-font-weight: 400;

  --md-typescale-title-large-font-size: 22px;
  --md-typescale-title-large-line-height: 28px;
  --md-typescale-title-large-font-weight: 400;

  --md-typescale-title-medium-font-size: 16px;
  --md-typescale-title-medium-line-height: 24px;
  --md-typescale-title-medium-font-weight: 500;

  --md-typescale-title-small-font-size: 14px;
  --md-typescale-title-small-line-height: 20px;
  --md-typescale-title-small-font-weight: 500;

  --md-typescale-body-large-font-size: 16px;
  --md-typescale-body-large-line-height: 24px;
  --md-typescale-body-large-font-weight: 400;

  --md-typescale-body-medium-font-size: 14px;
  --md-typescale-body-medium-line-height: 20px;
  --md-typescale-body-medium-font-weight: 400;

  --md-typescale-body-small-font-size: 12px;
  --md-typescale-body-small-line-height: 16px;
  --md-typescale-body-small-font-weight: 400;

  --md-typescale-label-large-font-size: 14px;
  --md-typescale-label-large-line-height: 20px;
  --md-typescale-label-large-font-weight: 500;

  --md-typescale-label-medium-font-size: 12px;
  --md-typescale-label-medium-line-height: 16px;
  --md-typescale-label-medium-font-weight: 500;

  --md-typescale-label-small-font-size: 11px;
  --md-typescale-label-small-line-height: 16px;
  --md-typescale-label-small-font-weight: 500;

  /* Shape */
  --md-shape-corner-none: 0px;
  --md-shape-corner-extra-small: 4px;
  --md-shape-corner-small: 8px;
  --md-shape-corner-medium: 12px;
  --md-shape-corner-large: 16px;
  --md-shape-corner-extra-large: 28px;
  --md-shape-corner-full: 50%;

  /* Motion */
  --md-motion-duration-short1: 50ms;
  --md-motion-duration-short2: 100ms;
  --md-motion-duration-short3: 150ms;
  --md-motion-duration-short4: 200ms;
  --md-motion-duration-medium1: 250ms;
  --md-motion-duration-medium2: 300ms;
  --md-motion-duration-medium3: 350ms;
  --md-motion-duration-medium4: 400ms;
  --md-motion-duration-long1: 450ms;
  --md-motion-duration-long2: 500ms;
  --md-motion-duration-long3: 550ms;
  --md-motion-duration-long4: 600ms;

  --md-motion-easing-linear: cubic-bezier(0, 0, 1, 1);
  --md-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-motion-easing-standard-accelerate: cubic-bezier(0.3, 0, 1, 1);
  --md-motion-easing-standard-decelerate: cubic-bezier(0, 0, 0, 1);
  --md-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --md-motion-easing-emphasized-accelerate: cubic-bezier(0.3, 0, 0.8, 0.15);
  --md-motion-easing-emphasized-decelerate: cubic-bezier(0.05, 0.7, 0.1, 1);
}

/* Dark Mode Colors */
@media (prefers-color-scheme: dark) {
  :root {
    /* Primary Colors - Lighter Cyan for Dark Mode */
    --md-primary: #67e8f9;
    --md-on-primary: #083344;
    --md-primary-container: #155e75;
    --md-on-primary-container: #cffafe;

    /* Secondary Colors */
    --md-secondary: #bcc7dc;
    --md-on-secondary: #263141;
    --md-secondary-container: #3d4758;
    --md-on-secondary-container: #d8e3f8;

    /* Tertiary Colors */
    --md-tertiary: #93c5fd;
    --md-on-tertiary: #1e3a8a;
    --md-tertiary-container: #1e40af;
    --md-on-tertiary-container: #dbeafe;

    /* Error Colors */
    --md-error: #ffb4ab;
    --md-on-error: #690005;
    --md-error-container: #93000a;
    --md-on-error-container: #ffdad6;

    /* Surface Colors */
    --md-surface: #1a1c1e;
    --md-on-surface: #e2e2e6;
    --md-surface-variant: #43474e;
    --md-on-surface-variant: #c3c6cf;
    --md-outline: #8d9199;
    --md-outline-variant: #43474e;

    /* Background Colors */
    --md-background: #1a1c1e;
    --md-on-background: #e2e2e6;

    /* Additional Background Variables */
    --bg-primary: #1a1c1e;
    --bg-secondary: #1e2022;
    --bg-tertiary: #282a2d;

    /* Text Colors for Dark Mode */
    --text-primary: #e2e2e6;
    --text-secondary: #c3c6cf;
    --text-tertiary: #8d9199;

    /* Border Colors for Dark Mode */
    --border-color: #43474e;
    --border-hover: #5f6368;

    /* Elevation - Darker shadows for dark mode */
    --md-elevation-level0: 0px 0px 0px 0px rgba(0, 0, 0, 0);
    --md-elevation-level1: 0px 1px 2px 0px rgba(0, 0, 0, 0.5), 0px 1px 3px 1px rgba(0, 0, 0, 0.3);
    --md-elevation-level2: 0px 1px 2px 0px rgba(0, 0, 0, 0.5), 0px 2px 6px 2px rgba(0, 0, 0, 0.3);
    --md-elevation-level3: 0px 1px 3px 0px rgba(0, 0, 0, 0.5), 0px 4px 8px 3px rgba(0, 0, 0, 0.3);
    --md-elevation-level4: 0px 2px 3px 0px rgba(0, 0, 0, 0.5), 0px 6px 10px 4px rgba(0, 0, 0, 0.3);
    --md-elevation-level5: 0px 4px 4px 0px rgba(0, 0, 0, 0.5), 0px 8px 12px 6px rgba(0, 0, 0, 0.3);
  }
}

/* Base Styles */
* {
  box-sizing: border-box;
}

.md3-body {
  font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: var(--md-typescale-body-medium-font-size);
  line-height: var(--md-typescale-body-medium-line-height);
  font-weight: var(--md-typescale-body-medium-font-weight);
  color: var(--md-on-background);
  background-color: var(--md-background);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  overflow-x: hidden;
}

/* 页面特定样式 */

/* Mobile Menu */
.md3-menu-button {
  display: none;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--md-shape-corner-full);
  background: none;
  border: none;
  color: var(--md-on-surface);
  cursor: pointer;
  transition: background-color var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.md3-menu-button:hover {
  background-color: var(--md-secondary-container);
}

.md3-mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--md-surface);
  border-bottom: 1px solid var(--md-outline-variant);
  box-shadow: var(--md-elevation-level2);
  padding: 16px;
  gap: 8px;
  flex-direction: column;
}

.md3-mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border-radius: var(--md-shape-corner-medium);
  text-decoration: none;
  color: var(--md-on-surface);
  font-size: var(--md-typescale-body-large-font-size);
  font-weight: var(--md-typescale-body-large-font-weight);
  transition: background-color var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.md3-mobile-nav-link:hover {
  background-color: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

/* Main Content */
.md3-main {
  margin-top: 60px;
  min-height: calc(100vh - 60px);
}

/* Hero Section */
.md3-hero-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--md-primary-container) 0%, var(--md-secondary-container) 100%);
  position: relative;
  overflow: hidden;
}

.md3-hero-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.md3-hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  min-height: 600px;
}

.md3-hero-text {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.md3-hero-title {
  font-size: var(--md-typescale-display-medium-font-size);
  line-height: var(--md-typescale-display-medium-line-height);
  font-weight: var(--md-typescale-display-medium-font-weight);
  color: var(--md-on-surface);
  margin: 0;
}

.md3-hero-subtitle {
  font-size: var(--md-typescale-title-large-font-size);
  line-height: var(--md-typescale-title-large-line-height);
  font-weight: var(--md-typescale-title-large-font-weight);
  color: var(--md-on-surface-variant);
  margin: 0;
}

/* Download Section */
.md3-download-section {
  margin-top: 48px;
}

.md3-download-buttons {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 500px;
}

/* 下载按钮样式 */
.md3-download-btn {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border-radius: var(--md-shape-corner-large);
  text-decoration: none;
  color: inherit;
  transition: all var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
  border: none;
  cursor: pointer;
  font-family: inherit;
  position: relative;
  overflow: hidden;
  min-height: 72px;
}

.md3-download-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.1);
  opacity: 0;
  transition: opacity var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.md3-download-btn:hover::before {
  opacity: 1;
}

.md3-download-btn:active {
  transform: scale(0.98);
}

/* 主要下载按钮（正式版） */
.md3-download-primary {
  background-color: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--md-elevation-level2);
}

.md3-download-primary:hover {
  box-shadow: var(--md-elevation-level4);
  transform: translateY(-2px);
}

/* 次要下载按钮（测试版） */
.md3-download-secondary {
  background-color: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  border: 1px solid var(--md-outline);
}

.md3-download-secondary:hover {
  background-color: var(--md-secondary);
  color: var(--md-on-secondary);
  border-color: var(--md-secondary);
  transform: translateY(-1px);
  box-shadow: var(--md-elevation-level2);
}

/* 按钮图标 */
.md3-download-btn .material-symbols-outlined,
.md3-download-btn .material-icons,
.md3-download-btn .material-icons-outlined {
  font-size: 24px;
  flex-shrink: 0;
  color: inherit;
}

/* 按钮文字区域 */
.md3-btn-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  text-align: left;
}

.md3-btn-title {
  font-size: var(--md-typescale-title-medium-font-size);
  line-height: var(--md-typescale-title-medium-line-height);
  font-weight: var(--md-typescale-title-medium-font-weight);
  margin: 0;
}

.md3-btn-version {
  font-size: var(--md-typescale-body-small-font-size);
  line-height: var(--md-typescale-body-small-line-height);
  font-weight: var(--md-typescale-body-small-font-weight);
  opacity: 0.8;
  margin: 0;
}

/* 确保按钮文字可见 */
.md3-download-primary .md3-btn-text,
.md3-download-primary .md3-btn-title,
.md3-download-primary .md3-btn-version {
  color: var(--md-on-primary) !important;
}

.md3-download-secondary .md3-btn-text,
.md3-download-secondary .md3-btn-title,
.md3-download-secondary .md3-btn-version {
  color: var(--md-on-secondary-container) !important;
}

.md3-download-secondary:hover .md3-btn-text,
.md3-download-secondary:hover .md3-btn-title,
.md3-download-secondary:hover .md3-btn-version {
  color: var(--md-on-secondary) !important;
}



/* Hero Image */
.md3-hero-image {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.md3-hero-image-container {
  position: relative;
  max-width: 400px;
  width: 100%;
}

.md3-hero-app-image {
  width: 100%;
  height: auto;
  border-radius: var(--md-shape-corner-extra-large);
  box-shadow: var(--md-elevation-level5);
  transition: transform var(--md-motion-duration-medium4) var(--md-motion-easing-emphasized);
}

.md3-hero-app-image:hover {
  transform: scale(1.05) rotate(2deg);
}

.md3-hero-image-decoration {
  position: absolute;
  top: -20px;
  right: -20px;
  width: 80px;
  height: 80px;
  border-radius: var(--md-shape-corner-full);
  background: linear-gradient(135deg, var(--md-primary) 0%, var(--md-tertiary) 100%);
  opacity: 0.8;
  z-index: -1;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

/* Responsive Design */
@media (max-width: 1024px) {
  .md3-navigation {
    display: none;
  }

  .md3-menu-button {
    display: flex;
  }

  .md3-hero-content {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .md3-hero-text {
    text-align: center;
    align-items: center;
  }

  .md3-hero-title {
    font-size: var(--md-typescale-display-small-font-size);
    line-height: var(--md-typescale-display-small-line-height);
  }

  .md3-download-buttons {
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .md3-main {
    margin-top: 56px;
    min-height: calc(100vh - 56px);
  }

  .md3-hero-section {
    padding: 48px 0;
  }

  .md3-hero-content {
    min-height: auto;
  }

  /* 移动端下载按钮布局 */
  .md3-download-buttons {
    max-width: 100%;
    gap: 12px;
  }

  .md3-download-btn {
    padding: 16px 20px;
    min-height: 64px;
  }

  .md3-download-btn .material-symbols-outlined,
  .md3-download-btn .material-icons,
  .md3-download-btn .material-icons-outlined {
    font-size: 20px;
  }

  .md3-btn-title {
    font-size: var(--md-typescale-body-large-font-size);
  }

  .md3-btn-version {
    font-size: var(--md-typescale-body-small-font-size);
  }
  
  .md3-hero-container {
    padding: 0 16px;
  }
  
  .md3-hero-content {
    gap: 32px;
  }
  
  .md3-hero-title {
    font-size: var(--md-typescale-headline-large-font-size);
    line-height: var(--md-typescale-headline-large-line-height);
  }
  
  .md3-hero-subtitle {
    font-size: var(--md-typescale-title-medium-font-size);
    line-height: var(--md-typescale-title-medium-line-height);
  }
  
  .md3-download-card {
    padding: 20px;
    gap: 16px;
  }
  
  .md3-download-icon {
    width: 48px;
    height: 48px;
  }
}

@media (max-width: 480px) {
  .md3-download-card {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }

  .md3-download-action {
    align-self: stretch;
    width: auto;
    height: 48px;
    border-radius: var(--md-shape-corner-medium);
  }
}

/* Mobile Menu Show/Hide */
.md3-mobile-menu.show {
  display: flex;
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Global Link Styles */
a {
  color: var(--md-primary);
  transition: color var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

a:hover {
  color: var(--md-primary);
  filter: brightness(1.1);
}

a:visited {
  color: var(--md-primary);
}

/* Focus Styles */
.md3-download-btn:focus {
  outline: 2px solid var(--md-primary);
  outline-offset: 2px;
}

/* Selection Styles */
::selection {
  background-color: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

::-moz-selection {
  background-color: var(--md-primary-container);
  color: var(--md-on-primary-container);
}

/* Scrollbar Styles */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--md-surface-variant);
}

::-webkit-scrollbar-thumb {
  background: var(--md-outline);
  border-radius: var(--md-shape-corner-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--md-primary);
}

/* Section Styles */
.md3-section {
  padding: 80px 0;
}

.md3-section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.md3-section-header {
  text-align: center;
  margin-bottom: 64px;
}

.md3-section-title {
  font-size: var(--md-typescale-headline-large-font-size);
  line-height: var(--md-typescale-headline-large-line-height);
  font-weight: var(--md-typescale-headline-large-font-weight);
  color: var(--md-on-surface);
  margin: 0 0 16px 0;
}

.md3-section-subtitle {
  font-size: var(--md-typescale-body-large-font-size);
  line-height: var(--md-typescale-body-large-line-height);
  font-weight: var(--md-typescale-body-large-font-weight);
  color: var(--md-on-surface-variant);
  margin: 0;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Screenshot Section */
.md3-screenshot-section {
  background-color: var(--md-surface-variant);
}

.md3-screenshot-carousel {
  position: relative;
}

.md3-screenshot-swiper {
  padding: 0 0 48px 0;
}

.md3-screenshot-card {
  position: relative;
  border-radius: var(--md-shape-corner-large);
  overflow: hidden;
  background-color: var(--md-surface);
  box-shadow: var(--md-elevation-level2);
  transition: all var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

.md3-screenshot-card:hover {
  box-shadow: var(--md-elevation-level4);
  transform: translateY(-4px);
}

.md3-screenshot-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--md-shape-corner-large);
}

.md3-screenshot-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
  color: white;
  font-size: 32px;
  border-radius: var(--md-shape-corner-large);
  cursor: pointer;
  pointer-events: auto;
}

.md3-screenshot-card:hover .md3-screenshot-overlay {
  opacity: 1;
}

/* 移动端：点击overlay图标才显示预览 */
@media (max-width: 768px) {
  .md3-screenshot-overlay {
    opacity: 0.6;
    background-color: rgba(0, 0, 0, 0.2);
  }

  .md3-screenshot-overlay:active {
    opacity: 1;
    background-color: rgba(0, 0, 0, 0.5);
  }
}

/* Carousel Controls */
.md3-carousel-button {
  width: 48px !important;
  height: 48px !important;
  border-radius: var(--md-shape-corner-full) !important;
  background-color: var(--md-surface) !important;
  color: var(--md-on-surface) !important;
  box-shadow: var(--md-elevation-level2) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: all var(--md-motion-duration-short4) var(--md-motion-easing-standard) !important;
  cursor: pointer !important;
  margin-top: 0 !important;
  top: 50% !important;
  transform: translateY(-50%) !important;
  z-index: 10 !important;
}

.md3-carousel-button:after {
  display: none !important;
}

.md3-carousel-button:hover {
  background-color: var(--md-primary) !important;
  color: var(--md-on-primary) !important;
  box-shadow: var(--md-elevation-level3) !important;
}

.md3-carousel-button.swiper-button-disabled {
  opacity: 0.3 !important;
  cursor: not-allowed !important;
}

.swiper-button-next.md3-carousel-button {
  right: 16px !important;
}

.swiper-button-prev.md3-carousel-button {
  left: 16px !important;
}

.md3-carousel-pagination {
  bottom: 0 !important;
}

.md3-carousel-pagination .swiper-pagination-bullet {
  width: 12px;
  height: 12px;
  background-color: var(--md-outline);
  opacity: 0.5;
  transition: all var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.md3-carousel-pagination .swiper-pagination-bullet-active {
  background-color: var(--md-primary);
  opacity: 1;
  transform: scale(1.2);
}

/* Testimonial Section */
.md3-testimonial-section {
  background-color: var(--md-surface);
}

.md3-testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 32px;
}

.md3-testimonial-card {
  background-color: var(--md-surface);
  border-radius: var(--md-shape-corner-large);
  padding: 32px;
  box-shadow: var(--md-elevation-level2);
  border: 1px solid var(--md-outline-variant);
  transition: all var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
  position: relative;
}

.md3-testimonial-card:hover {
  box-shadow: var(--md-elevation-level4);
  transform: translateY(-2px);
}

.md3-testimonial-quote {
  position: absolute;
  top: 16px;
  right: 16px;
  color: var(--md-primary);
  opacity: 0.3;
  font-size: 32px;
}

.md3-testimonial-content {
  margin-bottom: 24px;
}

.md3-testimonial-text {
  font-size: var(--md-typescale-body-large-font-size);
  line-height: var(--md-typescale-body-large-line-height);
  font-weight: var(--md-typescale-body-large-font-weight);
  color: var(--md-on-surface);
  margin: 0;
  font-style: italic;
}

.md3-testimonial-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.md3-testimonial-avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--md-shape-corner-full);
  overflow: hidden;
  flex-shrink: 0;
}

.md3-avatar-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.md3-testimonial-info {
  flex: 1;
}

.md3-testimonial-name {
  font-size: var(--md-typescale-title-small-font-size);
  line-height: var(--md-typescale-title-small-line-height);
  font-weight: var(--md-typescale-title-small-font-weight);
  color: var(--md-on-surface);
  margin: 0 0 4px 0;
}

.md3-testimonial-source {
  font-size: var(--md-typescale-body-small-font-size);
  line-height: var(--md-typescale-body-small-line-height);
  font-weight: var(--md-typescale-body-small-font-weight);
  color: var(--md-on-surface-variant);
  margin: 0;
}

/* FAQ Section */
.md3-faq-section {
  background-color: var(--md-surface-variant);
}

.md3-faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 800px;
  margin: 0 auto;
}

.md3-faq-item {
  background-color: var(--md-surface);
  border-radius: var(--md-shape-corner-large);
  border: 1px solid var(--md-outline-variant);
  overflow: hidden;
  transition: all var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

.md3-faq-item:hover {
  box-shadow: var(--md-elevation-level2);
}

.md3-faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px;
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  font-size: var(--md-typescale-title-medium-font-size);
  line-height: var(--md-typescale-title-medium-line-height);
  font-weight: var(--md-typescale-title-medium-font-weight);
  color: var(--md-on-surface);
  transition: background-color var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.md3-faq-question:hover {
  background-color: var(--md-secondary-container);
}

.md3-faq-icon {
  transition: transform var(--md-motion-duration-medium2) var(--md-motion-easing-standard);
}

.md3-faq-item.active .md3-faq-icon {
  transform: rotate(180deg);
}

.md3-faq-answer {
  padding: 0 24px 24px 24px;
  font-size: var(--md-typescale-body-medium-font-size);
  line-height: var(--md-typescale-body-medium-line-height);
  font-weight: var(--md-typescale-body-medium-font-weight);
  color: var(--md-on-surface-variant);
  display: none;
}

.md3-faq-item.active .md3-faq-answer {
  display: block;
  animation: fadeIn var(--md-motion-duration-medium4) var(--md-motion-easing-standard);
}

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

/* FAQ Section Footer */
.md3-section-footer {
  text-align: center;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--md-outline-variant);
}

.md3-contact-info {
  font-size: var(--md-typescale-body-large-font-size);
  line-height: var(--md-typescale-body-large-line-height);
  font-weight: var(--md-typescale-body-large-font-weight);
  color: var(--md-on-surface-variant);
  margin: 0;
}

.md3-contact-link {
  color: var(--md-primary);
  text-decoration: none;
  font-weight: var(--md-typescale-label-large-font-weight);
  transition: color var(--md-motion-duration-short4) var(--md-motion-easing-standard);
}

.md3-contact-link:hover {
  color: var(--md-primary-container);
  text-decoration: underline;
}

/* Loading Animation */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.loading {
  animation: pulse 1.5s ease-in-out infinite;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .md3-section {
    padding: 48px 0;
  }

  .md3-section-container {
    padding: 0 16px;
  }

  .md3-section-header {
    margin-bottom: 48px;
  }

  .md3-testimonial-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .md3-testimonial-card {
    padding: 24px;
  }

  .md3-faq-question {
    padding: 20px;
    font-size: var(--md-typescale-body-large-font-size);
  }

  .md3-faq-answer {
    padding: 0 20px 20px 20px;
  }
}