:root {
  --jade-white: #FDFDFB;
  --jade-light: #FAFAF8;
  --jade-soft: #F5F5F3;
  --jade-gray: #EAEAE8;
  --jade-muted: #D8D8D6;
  --ink-black: #1A1A1A;
  --ink-dark: #2D2D2D;
  --ink-medium: #4A4A4A;
  --ink-light: #6B6B6B;
  --ink-pale: #999999;
  --text-primary: #1A1A1A;
  --text-secondary: #4A4A4A;
  --text-tertiary: #8A8A8A;
  --jade-glow: linear-gradient(135deg, rgba(253, 253, 251, 0.98) 0%, rgba(250, 250, 248, 0.99) 25%, rgba(245, 245, 243, 0.98) 50%, rgba(250, 250, 248, 0.99) 75%, rgba(253, 253, 251, 0.98) 100%);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.1);
  --shadow-jade: 0 2px 8px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.06), inset 0 1px 0 rgba(255, 255, 255, 0.8);
  --shadow-button: 0 2px 8px rgba(0, 0, 0, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 20px;
  --spacing-2xl: 24px;
  --spacing-3xl: 32px;
  --spacing-4xl: 48px;
  --spacing-5xl: 64px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
  --font-serif: 'Noto Serif SC', Georgia, 'Times New Roman', serif;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--jade-white);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-2xl);
}

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

code {
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  background: var(--jade-soft);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  font-size: 0.9em;
  color: var(--ink-dark);
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(253, 253, 251, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(234, 234, 232, 0.5);
  transition: all var(--transition-normal);
}

.nav.scrolled {
  background: rgba(253, 253, 251, 0.95);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-2xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-logo {
  width: 40px;
  height: 40px;
  background: var(--ink-black);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--jade-white);
  box-shadow: var(--shadow-button);
  transition: transform var(--transition-fast);
}

.nav-logo:hover {
  transform: scale(1.05);
}

.nav-logo svg {
  width: 22px;
  height: 22px;
}

.nav-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

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

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--ink-black);
  transition: width var(--transition-fast);
}

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

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

.nav-link-primary {
  background: var(--ink-black);
  color: var(--jade-white);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-button);
  transition: all var(--transition-fast);
}

.nav-link-primary::after {
  display: none;
}

.nav-link-primary:hover {
  background: var(--ink-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.16);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--ink-black);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 24px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-icon {
  width: 18px;
  height: 18px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 15px;
  border-radius: var(--radius-lg);
}

.btn-primary {
  background: var(--ink-black);
  color: var(--jade-white);
  box-shadow: var(--shadow-button);
}

.btn-primary:hover {
  background: var(--ink-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
  background: var(--jade-soft);
  color: var(--text-primary);
  border: 1px solid var(--jade-gray);
}

.btn-secondary:hover {
  background: var(--jade-gray);
  transform: translateY(-2px);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-5xl);
}

.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-medium);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}

.section-desc {
  font-size: 16px;
  color: var(--text-tertiary);
  max-width: 600px;
  margin: 0 auto;
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(234, 234, 232, 0.5) 0%, transparent 70%);
}

.hero-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.3;
  background-image: radial-gradient(circle at 1px 1px, var(--jade-muted) 1px, transparent 0);
  background-size: 40px 40px;
}

.hero-container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-2xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-5xl);
  align-items: center;
}

.hero-content {
  max-width: 560px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 8px 16px;
  background: var(--jade-soft);
  border: 1px solid var(--jade-gray);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: #22C55E;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 56px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xl);
}

.hero-title-accent {
  color: var(--ink-medium);
}

.hero-desc {
  font-size: 18px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-2xl);
}

.hero-desc-br {
  display: none;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-3xl);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-value {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
}

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

.stat-divider {
  width: 1px;
  height: 32px;
  background: var(--jade-muted);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.demo-window {
  width: 340px;
  background: var(--jade-glow);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl), var(--shadow-jade);
  overflow: hidden;
  border: 1px solid rgba(234, 234, 232, 0.5);
  animation: float 6s ease-in-out infinite;
}

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

.demo-titlebar {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--jade-light);
  border-bottom: 1px solid var(--jade-gray);
}

.demo-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-close { background: #FF5F57; }
.dot-minimize { background: #FFBD2E; }
.dot-maximize { background: #28CA41; }

.demo-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-tertiary);
}

.demo-content {
  padding: var(--spacing-xl);
}

.demo-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--jade-gray);
}

.demo-icon {
  width: 44px;
  height: 44px;
  background: var(--ink-black);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--jade-white);
  box-shadow: var(--shadow-button);
}

.demo-icon svg {
  width: 22px;
  height: 22px;
}

.demo-brand-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.demo-brand-sub {
  font-size: 12px;
  color: var(--text-tertiary);
}

.demo-action {
  margin-bottom: var(--spacing-xl);
}

.demo-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 14px 24px;
  background: var(--ink-black);
  color: var(--jade-white);
  border: none;
  border-radius: var(--radius-lg);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  box-shadow: var(--shadow-button);
  transition: all var(--transition-fast);
}

.demo-btn:hover {
  background: var(--ink-dark);
  transform: translateY(-1px);
}

.demo-btn svg {
  width: 18px;
  height: 18px;
}

.demo-hint {
  text-align: center;
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: var(--spacing-md);
}

.demo-links {
  display: flex;
  gap: var(--spacing-sm);
}

.demo-link {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 10px;
  background: var(--jade-soft);
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.demo-link:hover {
  background: var(--jade-gray);
  color: var(--text-primary);
}

.demo-link svg {
  width: 14px;
  height: 14px;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 12px;
  color: var(--text-tertiary);
  animation: bounce 2s infinite;
}

.hero-scroll svg {
  width: 20px;
  height: 20px;
}

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

.features {
  padding: var(--spacing-5xl) 0;
  background: var(--jade-light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.feature-card {
  background: var(--jade-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(234, 234, 232, 0.5);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), var(--shadow-jade);
}

.feature-card-large {
  grid-column: span 3;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--spacing-2xl);
  align-items: center;
  padding: var(--spacing-3xl);
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--jade-soft);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-dark);
  margin-bottom: var(--spacing-lg);
}

.feature-card-large .feature-icon {
  width: 72px;
  height: 72px;
  margin-bottom: 0;
}

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

.feature-card-large .feature-icon svg {
  width: 36px;
  height: 36px;
}

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

.feature-card-large .feature-title {
  font-size: 22px;
  margin-bottom: var(--spacing-md);
}

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

.feature-card-large .feature-desc {
  font-size: 15px;
}

.feature-tags {
  display: flex;
  gap: var(--spacing-sm);
}

.feature-tag {
  padding: 6px 12px;
  background: var(--jade-soft);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-medium);
}

.formats {
  padding: var(--spacing-5xl) 0;
}

.formats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.format-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--jade-light);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.format-item:hover {
  background: var(--jade-white);
  border-color: var(--jade-gray);
  box-shadow: var(--shadow-sm);
}

.format-icon {
  width: 36px;
  height: 36px;
  background: var(--jade-white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-medium);
}

.format-icon svg {
  width: 18px;
  height: 18px;
}

.format-name {
  flex: 1;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.format-check {
  font-size: 14px;
  color: #22C55E;
  font-weight: 600;
}

.guide {
  padding: var(--spacing-5xl) 0;
  background: var(--jade-light);
}

.guide-steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-4xl);
}

.guide-step {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--spacing-2xl);
  align-items: center;
}

.step-number {
  font-family: var(--font-serif);
  font-size: 72px;
  font-weight: 700;
  color: var(--jade-gray);
  line-height: 1;
}

.step-content {
  max-width: 400px;
}

.step-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.step-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.step-visual {
  width: 280px;
}

.step-card {
  background: var(--jade-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  border: 1px solid rgba(234, 234, 232, 0.5);
}

.step-card-header {
  display: flex;
  gap: 6px;
  padding: var(--spacing-md);
  background: var(--jade-light);
  border-bottom: 1px solid var(--jade-gray);
}

.step-card-dot {
  width: 10px;
  height: 10px;
  background: var(--jade-muted);
  border-radius: 50%;
}

.step-card-content {
  padding: var(--spacing-lg);
}

.step-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
}

.toggle-label {
  font-size: 13px;
  color: var(--text-secondary);
}

.toggle-switch {
  width: 40px;
  height: 22px;
  background: var(--jade-muted);
  border-radius: 11px;
  position: relative;
  transition: background var(--transition-fast);
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: white;
  border-radius: 50%;
  transition: transform var(--transition-fast);
}

.toggle-switch.active {
  background: #22C55E;
}

.toggle-switch.active::after {
  transform: translateX(18px);
}

.step-btn-mock {
  padding: var(--spacing-md);
  background: var(--jade-soft);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
}

.step-card-url {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 13px;
  color: var(--text-tertiary);
}

.step-card-url svg {
  width: 16px;
  height: 16px;
}

.step-export-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  background: var(--ink-black);
  color: var(--jade-white);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-button);
}

.step-export-btn svg {
  width: 18px;
  height: 18px;
}

.guide-output {
  max-width: 600px;
  margin: 0 auto;
  background: var(--jade-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  border: 1px solid rgba(234, 234, 232, 0.5);
}

.output-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg);
  background: var(--jade-light);
  border-bottom: 1px solid var(--jade-gray);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

.output-header svg {
  width: 18px;
  height: 18px;
}

.output-tree {
  padding: var(--spacing-lg);
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 13px;
}

.tree-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 4px 0;
  color: var(--text-secondary);
}

.tree-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.tree-folder svg {
  color: var(--ink-medium);
}

.tree-file svg {
  color: var(--text-tertiary);
}

.tree-nested {
  padding-left: var(--spacing-xl);
}

.tree-nested-2 {
  padding-left: calc(var(--spacing-xl) * 2);
}

.tech {
  padding: var(--spacing-5xl) 0;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.tech-card {
  background: var(--jade-light);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  border: 1px solid transparent;
  transition: all var(--transition-normal);
}

.tech-card:hover {
  background: var(--jade-white);
  border-color: var(--jade-gray);
  box-shadow: var(--shadow-card);
  transform: translateY(-4px);
}

.tech-icon {
  width: 48px;
  height: 48px;
  background: var(--jade-white);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-dark);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.tech-icon svg {
  width: 24px;
  height: 24px;
}

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

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

.changelog {
  padding: var(--spacing-5xl) 0;
  background: var(--jade-light);
}

.changelog-timeline {
  max-width: 800px;
  margin: 0 auto;
}

.changelog-item {
  display: flex;
  gap: var(--spacing-xl);
  position: relative;
}

.changelog-item + .changelog-item {
  margin-top: var(--spacing-2xl);
}

.changelog-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.changelog-dot {
  width: 14px;
  height: 14px;
  background: var(--jade-muted);
  border-radius: 50%;
  border: 3px solid var(--jade-white);
  box-shadow: 0 0 0 3px var(--jade-muted);
}

.changelog-item-latest .changelog-dot {
  background: var(--ink-black);
  box-shadow: 0 0 0 3px var(--ink-black);
}

.changelog-line {
  width: 2px;
  flex: 1;
  background: var(--jade-muted);
  margin-top: var(--spacing-sm);
}

.changelog-item:last-child .changelog-line {
  display: none;
}

.changelog-content {
  flex: 1;
  background: var(--jade-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(234, 234, 232, 0.5);
}

.changelog-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.changelog-version {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

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

.changelog-badge {
  padding: 4px 10px;
  background: var(--ink-black);
  color: var(--jade-white);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
}

.changelog-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

.changelog-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.changelog-list li {
  font-size: 14px;
  color: var(--text-secondary);
  padding-left: var(--spacing-lg);
  position: relative;
}

.changelog-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 4px;
  height: 4px;
  background: var(--ink-light);
  border-radius: 50%;
}

.download {
  padding: var(--spacing-5xl) 0;
}

.download-card {
  max-width: 800px;
  margin: 0 auto;
  background: var(--ink-black);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-4xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.download-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 40% at 50% 0%, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
}

.download-content {
  position: relative;
  z-index: 1;
}

.download-icon {
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-xl);
  color: var(--jade-white);
}

.download-icon svg {
  width: 44px;
  height: 44px;
}

.download-title {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 600;
  color: var(--jade-white);
  margin-bottom: var(--spacing-md);
}

.download-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--spacing-2xl);
}

.download-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
}

.download-actions .btn-primary {
  background: var(--jade-white);
  color: var(--ink-black);
}

.download-actions .btn-primary:hover {
  background: var(--jade-light);
}

.download-actions .btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--jade-white);
  border-color: rgba(255, 255, 255, 0.2);
}

.download-actions .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

.download-info {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
}

.info-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.info-item svg {
  width: 16px;
  height: 16px;
}

.footer {
  padding: var(--spacing-3xl) 0;
  background: var(--jade-light);
  border-top: 1px solid var(--jade-gray);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.footer-logo {
  width: 32px;
  height: 32px;
  background: var(--ink-black);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--jade-white);
}

.footer-logo svg {
  width: 18px;
  height: 18px;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  gap: var(--spacing-xl);
}

.footer-links a {
  font-size: 13px;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

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

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

@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-card-large {
    grid-column: span 2;
    grid-template-columns: 1fr;
    text-align: center;
  }

  .feature-card-large .feature-icon {
    margin: 0 auto var(--spacing-lg);
  }

  .feature-card-large .feature-tags {
    justify-content: center;
    margin-top: var(--spacing-lg);
  }

  .formats-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .guide-step {
    grid-template-columns: auto 1fr;
    gap: var(--spacing-xl);
  }

  .step-visual {
    display: none;
  }

  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--jade-white);
    flex-direction: column;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--jade-gray);
    box-shadow: var(--shadow-md);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero-title {
    font-size: 36px;
  }

  .hero-desc {
    font-size: 16px;
  }

  .hero-desc-br {
    display: inline;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: var(--spacing-lg);
  }

  .stat-divider {
    display: none;
  }

  .hero-scroll {
    display: none;
  }

  .section-title {
    font-size: 28px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-card-large {
    grid-column: span 1;
  }

  .formats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .guide-step {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .step-number {
    font-size: 48px;
  }

  .tech-grid {
    grid-template-columns: 1fr;
  }

  .download-card {
    padding: var(--spacing-2xl);
  }

  .download-title {
    font-size: 24px;
  }

  .download-actions {
    flex-direction: column;
  }

  .download-actions .btn {
    width: 100%;
  }

  .download-info {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .footer-content {
    flex-direction: column;
    gap: var(--spacing-lg);
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-lg);
  }

  .formats-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}