/* ============================================
   Modern CSS for SEO-Optimized Content Site
   Based on Google 2026 Best Practices
   ============================================ */

/* ============================================
   1. CSS RESET & BASE STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Colors */
  --color-primary: #1976d2;
  --color-primary-dark: #115293;
  --color-primary-light: #4791db;
  --color-secondary: #424242;
  --color-accent: #ff6b6b;
  --color-success: #4caf50;
  --color-warning: #ff9800;
  --color-danger: #f44336;
  
  /* Neutrals */
  --color-text: #212121;
  --color-text-light: #666666;
  --color-text-lighter: #999999;
  --color-border: #e0e0e0;
  --color-border-light: #f5f5f5;
  --color-bg: #ffffff;
  --color-bg-alt: #fafafa;
  --color-bg-section: #f8f9fa;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Merriweather', Georgia, serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-xxl: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  /* Do NOT set overflow-x here: combined with body's overflow-x: hidden
     it makes <html> its own scroll container and breaks the sticky header. */
}

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  margin: 0;
  padding: 0;
}

/* ============================================
   2. SKIP LINK (Accessibility)
   ============================================ */
.photo_center_6e84 {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 10000;
  border-radius: 0 0 4px 0;
}

.photo_center_6e84:focus {
  top: 0;
}

/* ============================================
   3. CONTAINER & LAYOUT
   ============================================ */
.list_north_2d26 {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  width: 100%;
  box-sizing: border-box;
}

@media (max-width: 768px) {
  .list_north_2d26 {
    padding: 0 var(--space-sm);
  }
}

@media (max-width: 480px) {
  .list_north_2d26 {
    padding: 0 12px;
  }
}

/* Prevent horizontal overflow on all elements EXCEPT header */
*:not(.paragraph-20e5):not(header) {
  max-width: 100%;
}

/* Allow specific elements to exceed container */
html,
body,
.paragraph-20e5,
header,
.texture-center-8653,
.cold_6d46,
.inner_4ddd,
.container_first_3088,
.west_320f,
.glass_fe9b,
.detail-over-dba4 {
  max-width: none;
}

/* Critical mobile fix: prevent any overflow */
section,
article,
div,
main {
  overflow-wrap: break-word;
  word-wrap: break-word;
}

/* Ensure images never cause overflow */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Ensure SVG icons don't cause issues */
svg {
  max-width: 100%;
  height: auto;
}

/* ============================================
   4. HEADER & NAVIGATION
   ============================================ */
.paragraph-20e5 {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  position: -webkit-sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: all var(--transition-base);
}

.footer_inner_6cfe {
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Scrolled state */
.paragraph-20e5.gold_de26 {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
  background: rgba(255, 255, 255, 1);
}

.notification-d078 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  gap: var(--space-md);
}

.notification_c213 {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.highlight_silver_6d28 img {
  height: 36px;
  width: auto;
  display: block;
}

.steel-4af5 {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  background: #e8f5e9;
  color: var(--color-success);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 12px;
  white-space: nowrap;
}

.border_wide_6883 {
  flex: 1;
}

.status_452a {
  display: flex;
  list-style: none;
  gap: var(--space-sm);
  margin: 0;
  padding: 0;
}

.tertiary-06f4 {
  display: block;
  padding: 8px 16px;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.tertiary-06f4:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

.tertiary-06f4.sidebar_tall_1bf0 {
  background: var(--color-primary);
  color: white;
}

/* Dropdown Navigation */
.hover-256e {
  position: relative;
}

.secondary_pro_303a {
  display: flex;
  align-items: center;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
}

.secondary_pro_303a svg {
  transition: transform 0.2s ease;
}

/* 鼠标悬停时箭头旋转（桌面）；点击展开时箭头旋转（移动端） */
.hover-256e:hover .secondary_pro_303a svg,
.secondary_pro_303a[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.focused-10db {
  position: absolute;
  top: calc(100% + 8px); /* 距离父元素8px，更自然 */
  left: 0;
  min-width: 200px;
  width: max-content; /* 自动适应内容宽度 */
  max-width: 300px; /* 最大宽度限制 */
  background: white;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  border: 1px solid rgba(0, 0, 0, 0.08);
  list-style: none;
  margin: 0;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 1001;
  /* 关键：确保没有overflow，内容完全可见 */
  overflow: visible;
  max-height: none;
  height: auto;
}

/* 鼠标悬停父元素时，立即显示下拉菜单 */
.hover-256e:hover .focused-10db {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

/* 在下拉菜单上方添加一个不可见的桥接区域，防止鼠标移动时菜单消失 */
.focused-10db::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 0;
  right: 0;
  height: 8px;
  background: transparent;
}

.large-7dc4 {
  display: block;
  padding: 10px 20px;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.large-7dc4:hover {
  background: var(--color-primary);
  color: white;
  padding-left: 24px; /* 悬停时轻微缩进 */
}

/* 当前页面在下拉菜单中的样式 */
.large-7dc4[aria-current="page"] {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}

.thick_f0cd {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

/* Header Login Button */
.outline_north_f16c {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: all var(--transition-base);
  white-space: nowrap;
}

.outline_north_f16c:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-text-light);
  transform: translateY(-1px);
}

.outline_north_f16c svg {
  flex-shrink: 0;
}

/* Header Download Button */
.sidebar-motion-cfac {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: all var(--transition-base);
  box-shadow: 0 2px 8px rgba(25, 118, 210, 0.3);
  white-space: nowrap;
}

.sidebar-motion-cfac:hover {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, #0d47a1 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(25, 118, 210, 0.4);
}

.sidebar-motion-cfac svg {
  flex-shrink: 0;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-3px);
  }
}

.shade-123f {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: transparent;
  border: none;
  padding: 8px;
  cursor: pointer;
  z-index: 1001;
}

.popup-ecfd {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition-base);
}

/* Hamburger animation when active */
.shade-123f[aria-expanded="true"] .popup-ecfd:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.shade-123f[aria-expanded="true"] .popup-ecfd:nth-child(2) {
  opacity: 0;
}

.shade-123f[aria-expanded="true"] .popup-ecfd:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Navigation Menu */
@media (max-width: 1100px) {
  .border_wide_6883 {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: white;
    box-shadow: -2px 0 8px rgba(0, 0, 0, 0.1);
    padding: 80px 0 20px;
    transition: right 0.3s ease-out;
    z-index: 999;
    overflow-y: auto; /* 移动端菜单内容过多时可滚动 */
    overflow-x: visible; /* 水平方向不滚动，确保下拉菜单可见 */
    /* 隐藏滚动条外观，但保留可滚动能力，视觉上更自然 */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
  }

  .border_wide_6883::-webkit-scrollbar {
    display: none; /* Chrome/Safari/Edge(Chromium) */
  }
  
  .border_wide_6883.modal-37db {
    display: block;
    right: 0;
  }
  
  .status_452a {
    flex-direction: column;
    gap: 0;
  }
  
  .tertiary-06f4 {
    display: block;
    padding: 16px 24px;
    border-radius: 0;
    border-bottom: 1px solid var(--color-border-light);
  }
  
  /* Mobile overlay */
  .border_wide_6883::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease-out;
  }
  
  .border_wide_6883.modal-37db::before {
    opacity: 1;
    pointer-events: auto;
  }
}

@media (max-width: 1100px) {
  .border_wide_6883 {
    display: none;
  }
  
  .shade-123f {
    display: flex;
  }
  
  .steel-4af5 {
    display: none;
  }
  
  /* Adjust header buttons on tablet */
  .outline_north_f16c,
  .sidebar-motion-cfac {
    padding: 8px 16px;
    font-size: 0.875rem;
  }
  
  /* 移动端下拉菜单改为堆叠显示，不需要浮动 */
  .hover-256e {
    position: relative;
  }
  
  .focused-10db {
    position: static; /* 移动端不浮动，直接堆叠 */
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-left: 3px solid var(--color-primary);
    padding-left: 20px;
    margin-top: 0;
    /* 用 max-height 过渡实现自然展开/收起，而不是生硬的 display 切换 */
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, margin-top 0.3s ease;
  }
  
  .secondary_pro_303a[aria-expanded="true"] + .focused-10db {
    max-height: 320px; /* 足够容纳所有子项，展开时自然撑开 */
    margin-top: 8px;
  }
  
  .large-7dc4 {
    padding: 8px 16px;
    font-size: 0.9rem;
  }
}

@media (max-width: 768px) {
  /* Stack buttons vertically or hide login on small screens */
  .thick_f0cd {
    gap: 8px;
  }
  
  .outline_north_f16c {
    display: none;
  }
  
  .sidebar-motion-cfac {
    padding: 8px 16px;
    font-size: 0.875rem;
  }
  
  .highlight_silver_6d28 img {
    height: 32px;
    width: auto;
  }
}

@media (max-width: 480px) {
  .sidebar-motion-cfac {
    padding: 6px 12px;
    font-size: 0.8125rem;
  }
  
  .sidebar-motion-cfac svg {
    width: 14px;
    height: 14px;
  }
  
  .notification-d078 {
    gap: var(--space-sm);
  }
}

/* ============================================
   5. ARTICLE META BANNER
   ============================================ */
.texture-center-8653 {
  background: var(--color-bg-section);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-sm) 0;
}

.copper-c354 {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.lower_6289 {
  display: flex;
  align-items: center;
  gap: 6px;
}

.lower_6289 svg {
  flex-shrink: 0;
}

.lower_6289 a {
  color: var(--color-primary);
  text-decoration: none;
}

.lower_6289 a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .copper-c354 {
    font-size: 0.8125rem;
    gap: var(--space-sm);
  }
}

/* ============================================
   6. HERO SECTION
   ============================================ */
.cold_6d46 {
  padding: var(--space-xl) 0;
  background: linear-gradient(135deg, #f5f7fa 0%, #ffffff 100%);
}

.modal-medium-5340 {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: var(--space-xl);
  align-items: center;
  width: 100%;
}

@media (max-width: 1024px) {
  .modal-medium-5340 {
    grid-template-columns: 1fr 350px;
    gap: var(--space-lg);
  }
}

.highlight_solid_f784 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.highlight_solid_f784 a {
  color: var(--color-primary);
  text-decoration: none;
}

.highlight_solid_f784 a:hover {
  text-decoration: underline;
}

.icon-84cb {
  color: var(--color-text-lighter);
}

.panel_selected_10d4 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: var(--space-md);
  word-wrap: break-word;
  overflow-wrap: break-word;
  hyphens: auto;
}

@media (max-width: 1024px) {
  .panel_selected_10d4 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .panel_selected_10d4 {
    font-size: 1.5rem;
  }
}

.large-5e76 {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
}

.caption_fa3d {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

@media (max-width: 768px) {
  .caption_fa3d {
    grid-template-columns: 1fr;
  }
}

.section_e138 {
  display: flex;
  gap: var(--space-sm);
}

.icon_6b02 {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: var(--color-primary-light);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.footer-0349 {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-0349 strong {
  font-weight: 600;
  color: var(--color-text);
}

.footer-0349 span {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.purple-3cc2 {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.upper_10bd {
  display: flex;
  align-items: center;
  justify-content: center;
}

.content-advanced-91e2 {
  position: relative;
  text-align: center;
}

.content-advanced-91e2 img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 100%;
  width: 100%;
  height: auto;
  display: block;
}

.paragraph_center_0307 {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.search-next-c8fc {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.iron-1ca5 {
  color: #ffa000;
  font-size: 1.25rem;
  letter-spacing: 2px;
}

.highlight-7f7c {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
}

.green_1005 {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.complex-a737 {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

@media (max-width: 968px) {
  .modal-medium-5340 {
    grid-template-columns: 1fr;
  }
  
  .panel_selected_10d4 {
    font-size: 1.75rem;
  }
  
  .upper_10bd {
    order: -1;
    max-width: 100%;
  }
  
  .content-advanced-91e2 {
    max-width: 300px;
    margin: 0 auto;
  }
}

@media (max-width: 480px) {
  .panel_selected_10d4 {
    font-size: 1.5rem;
  }
  
  .large-5e76 {
    font-size: 1rem;
  }
  
  .highlight_solid_f784 {
    font-size: 0.8125rem;
    flex-wrap: wrap;
  }
  
  .content-advanced-91e2 {
    max-width: 250px;
  }
}

/* ============================================
   7. BUTTONS
   ============================================ */
.accordion_23dc {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  font-size: 1rem;
  line-height: 1.5;
}

.paragraph-outer-14b8 {
  background: var(--color-primary);
  color: white;
}

.paragraph-outer-14b8:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.out-660c {
  background: white;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.out-660c:hover {
  background: var(--color-primary);
  color: white;
}

.label-f5b8 {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.label-f5b8:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-text-light);
}

.hero_new_bfc2 {
  padding: 16px 32px;
  font-size: 1.125rem;
}

.tall_7d4a {
  padding: 20px 40px;
  font-size: 1.25rem;
}

/* ============================================
   8. STATS SECTION
   ============================================ */
.inner_4ddd {
  padding: var(--space-xl) 0;
  background: white;
}

.shadow-a2fd {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
}

.primary-31f2 {
  text-align: center;
  padding: var(--space-lg);
  background: var(--color-bg-section);
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
}

.primary-31f2:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.old-477c {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.gas-2162 {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.top_a140 {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

/* ============================================
   9. TABLE OF CONTENTS
   ============================================ */
.container_first_3088 {
  padding: var(--space-xl) 0;
  background: var(--color-bg-section);
}

.gas-a406 {
  background: white;
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.grid_319e {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

.background_5bc8 {
  list-style: none;
  counter-reset: toc-counter;
}

.background_5bc8 li {
  counter-increment: toc-counter;
  margin-bottom: var(--space-sm);
}

.background_5bc8 li a {
  display: flex;
  align-items: center;
  padding: var(--space-sm);
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.background_5bc8 li a:before {
  content: counter(toc-counter);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--color-primary-light);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  margin-right: var(--space-sm);
  flex-shrink: 0;
}

.background_5bc8 li a:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

/* ============================================
   10. CONTENT SECTIONS
   ============================================ */
.west_320f {
  padding: var(--space-xxl) 0;
}

.link-1fa0 {
  background: var(--color-bg-section);
}

.simple-91f1 {
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-xl);
}

.disabled_7b1d {
  display: inline-block;
  padding: 6px 16px;
  background: var(--color-primary-light);
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 20px;
  margin-bottom: var(--space-md);
}

.pattern_4d91 {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.disabled_hard_39f6 {
  font-size: 1.125rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.detail_upper_3fef {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: var(--space-xl);
  width: 100%;
}

@media (max-width: 1200px) {
  .detail_upper_3fef {
    grid-template-columns: 1fr 300px;
  }
}

.sidebar_fc26 {
  max-width: 750px;
  width: 100%;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

.sidebar_fc26 img {
  max-width: 100%;
  height: auto;
  display: block;
}

.sidebar_fc26 pre,
.sidebar_fc26 code {
  overflow-x: auto;
  max-width: 100%;
}

.sidebar_fc26 h3 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  margin: var(--space-xl) 0 var(--space-md);
  color: var(--color-text);
}

.sidebar_fc26 h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: var(--space-lg) 0 var(--space-sm);
  color: var(--color-text);
}

.sidebar_fc26 h5 {
  font-size: 1.125rem;
  font-weight: 600;
  margin: var(--space-md) 0 var(--space-sm);
  color: var(--color-text);
}

.sidebar_fc26 p {
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.sidebar_fc26 ul,
.sidebar_fc26 ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

.sidebar_fc26 li {
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.sidebar_fc26 strong {
  font-weight: 600;
  color: var(--color-text);
}

.sidebar_fc26 a {
  color: var(--color-primary);
  text-decoration: underline;
}

.sidebar_fc26 a:hover {
  color: var(--color-primary-dark);
}

.slider-selected-3027 {
  counter-reset: list-counter;
  list-style: none;
  padding-left: 0;
}

.slider-selected-3027 li {
  counter-increment: list-counter;
  position: relative;
  padding-left: 2.5rem;
  margin-bottom: var(--space-md);
}

.slider-selected-3027 li:before {
  content: counter(list-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
}

@media (max-width: 968px) {
  .detail_upper_3fef {
    grid-template-columns: 1fr;
  }
  
  .pattern_4d91 {
    font-size: 1.75rem;
  }
  
  .sidebar_fc26 {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .pattern_4d91 {
    font-size: 1.5rem;
  }
  
  .sidebar_fc26 h3 {
    font-size: 1.375rem;
  }
  
  .sidebar_fc26 h4 {
    font-size: 1.125rem;
  }
}

/* ============================================
   11. INFO BOXES
   ============================================ */
.sidebar_4390 {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  margin: var(--space-lg) 0;
  border-left: 4px solid;
}

.panel-9218 {
  background: #fff3e0;
  border-color: var(--color-warning);
}

.panel-5116 {
  background: #e3f2fd;
  border-color: var(--color-primary);
}

.feature-fc3e {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.thumbnail-313a strong {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 600;
}

/* ============================================
   12. AUTHOR NOTE
   ============================================ */
.nav-bf20 {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: #f1f8ff;
  border: 2px solid #0366d6;
  border-radius: var(--radius-lg);
  margin: var(--space-xl) 0;
}

.layout-aaf7 {
  flex-shrink: 0;
}

.right-e9c0 strong {
  display: block;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

/* ============================================
   13. TABLES
   ============================================ */
.accent-soft-d6fb {
  overflow-x: auto;
  margin: var(--space-lg) 0;
  width: 100%;
  -webkit-overflow-scrolling: touch;
}

@media (max-width: 768px) {
  .accent-soft-d6fb {
    margin-left: calc(-1 * var(--space-sm));
    margin-right: calc(-1 * var(--space-sm));
    width: calc(100% + 2 * var(--space-sm));
    border-radius: 0;
  }
}

.list-9764,
.paper-3cb0,
.black_390d {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.list-9764 thead,
.paper-3cb0 thead {
  background: var(--color-primary);
  color: white;
}

.list-9764 th,
.list-9764 td,
.paper-3cb0 th,
.paper-3cb0 td,
.black_390d th,
.black_390d td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
  white-space: nowrap;
}

@media (max-width: 768px) {
  .list-9764 th,
  .list-9764 td,
  .paper-3cb0 th,
  .paper-3cb0 td,
  .black_390d th,
  .black_390d td {
    padding: var(--space-sm);
    font-size: 0.875rem;
  }
  
  .list-9764,
  .paper-3cb0,
  .black_390d {
    min-width: 600px;
  }
}

.list-9764 th,
.paper-3cb0 th,
.black_390d th {
  font-weight: 600;
}

.list-9764 tbody tr:hover,
.paper-3cb0 tbody tr:hover,
.black_390d tbody tr:hover {
  background: var(--color-bg-alt);
}

.last_01be {
  font-size: 0.875rem;
  color: var(--color-text-light);
  font-style: italic;
  margin-top: var(--space-sm);
}

/* ============================================
   14. SIDEBAR
   ============================================ */
.column-easy-c3af {
  position: sticky;
  top: 80px;
  align-self: start;
}

.item_77ef {
  background: white;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-md);
}

.item_77ef h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.sort_first_af68 {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.sort_first_af68 h4 {
  color: white;
}

.mini-6305 {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.widget_right_1524 {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border-light);
}

.widget_right_1524:last-child {
  border-bottom: none;
}

.widget_right_1524 dt {
  font-weight: 600;
  color: var(--color-text-light);
}

.widget_right_1524 dd {
  font-weight: 500;
  color: var(--color-text);
  text-align: right;
}

.notice_3f0a {
  font-family: 'Courier New', monospace;
  font-size: 0.75rem;
  word-break: break-all;
}

.media-cabf {
  display: inline-flex;
  align-items: center;
  margin-top: var(--space-md);
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.media-cabf:hover {
  text-decoration: underline;
}

.full-f365 {
  text-align: center;
  margin-bottom: var(--space-md);
}

.section_35c6 {
  width: 120px;
  height: 120px;
  margin: 0 auto var(--space-sm);
  border-radius: 50%;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.section_35c6 span {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-light);
}

.preview_db56 {
  font-weight: 600;
  color: white;
}

.logo_5fac {
  list-style: none;
  padding: 0;
}

.logo_5fac li {
  padding: var(--space-xs) 0;
}

.tooltip_ae06 {
  color: #4caf50;
}

.media_1671 {
  color: #ff9800;
}

.shade-fe22 {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.picture-1ee0 {
  display: grid;
  grid-template-columns: 80px 1fr 40px;
  align-items: center;
  gap: var(--space-sm);
}

.avatar_b3db {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.title-gas-0626 {
  height: 8px;
  background: var(--color-border-light);
  border-radius: 4px;
  overflow: hidden;
}

.picture_62da {
  height: 100%;
  background: linear-gradient(90deg, #4caf50 0%, #8bc34a 100%);
  transition: width var(--transition-slow);
}

.progress-green-1d70 {
  font-weight: 700;
  color: var(--color-text);
  text-align: right;
}

/* ============================================
   15. FEATURE GRID
   ============================================ */
.pattern_d0b4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

@media (max-width: 768px) {
  .pattern_d0b4 {
    grid-template-columns: 1fr;
  }
}

.feature_26fa {
  padding: var(--space-xl);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  position: relative;
}

.feature_26fa:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.fresh-192d {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 48px;
  height: 48px;
  background: var(--color-primary-light);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  opacity: 0.3;
}

.feature_26fa h4 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.feature_26fa p {
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.static_d087 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

.preview_db56 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-light);
}

.east-bc07 {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--color-primary);
}

.list_0e59 {
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  background: #f1f8ff;
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
}

.list_0e59 h4 {
  margin-bottom: var(--space-sm);
  font-size: 1.125rem;
}

/* ============================================
   16. COMPARISON & DECISION HELPER
   ============================================ */
.complex_7473 {
  max-width: 900px;
  margin: 0 auto;
}

.grid-0ef2 {
  text-align: center;
  margin-bottom: var(--space-xl);
  font-size: 1.125rem;
  color: var(--color-text-light);
}

.heading-f73d {
  margin: var(--space-xl) 0;
  overflow-x: auto;
  width: 100%;
  -webkit-overflow-scrolling: touch;
}

@media (max-width: 768px) {
  .heading-f73d {
    margin-left: calc(-1 * var(--space-sm));
    margin-right: calc(-1 * var(--space-sm));
    width: calc(100% + 2 * var(--space-sm));
  }
}

.sidebar-bfe9 {
  margin-top: var(--space-xxl);
}

.sidebar-bfe9 h3 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  text-align: center;
  margin-bottom: var(--space-xl);
}

.header-5973 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

@media (max-width: 768px) {
  .header-5973 {
    grid-template-columns: 1fr;
  }
}

.caption-8bbc {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.summary_c974 {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
}

.hover_4188 {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  color: white;
}

.caption-8bbc h4 {
  margin-bottom: var(--space-lg);
  font-size: 1.5rem;
  color: white;
}

.caption-8bbc ul {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-lg);
}

.caption-8bbc li {
  padding: var(--space-xs) 0;
  color: white;
}

.caption-8bbc .accordion_23dc {
  width: 100%;
  background: white;
}

.summary_c974 .accordion_23dc {
  color: #667eea;
}

.hover_4188 .accordion_23dc {
  color: #f5576c;
}

/* ============================================
   17. TUTORIAL / STEPS
   ============================================ */
.modal-full-8109 {
  max-width: 900px;
  margin: 0 auto;
}

.card-aef7 {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--space-xl);
  overflow: hidden;
}

.gold_122e {
  padding: var(--space-lg);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
}

.preview_6fef {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255,255,255,0.2);
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.gold_122e h3 {
  margin: 0;
  font-size: 1.5rem;
  color: white;
}

.south_263a {
  padding: var(--space-xl);
}

@media (max-width: 768px) {
  .gold_122e {
    padding: var(--space-md);
  }
  
  .south_263a {
    padding: var(--space-md);
  }
  
  .in-33dc {
    margin-left: calc(-1 * var(--space-md));
    margin-right: calc(-1 * var(--space-md));
  }
}

.accent_bronze_ffdc ol,
.accent_bronze_ffdc ul {
  margin: var(--space-md) 0;
  padding-left: var(--space-lg);
}

.accent_bronze_ffdc li {
  margin-bottom: var(--space-sm);
}

.accent_bronze_ffdc code {
  background: var(--color-bg-alt);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
}

.gradient-motion-5c8e {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: #fff3e0;
  border-left: 4px solid var(--color-warning);
  border-radius: var(--radius-md);
}

.search-ddfd {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: #ffebee;
  border-left: 4px solid var(--color-danger);
  border-radius: var(--radius-md);
}

.in-33dc {
  margin-top: var(--space-lg);
  text-align: center;
}

.in-33dc img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.breadcrumb_fresh_cf1d,
.hot-30af,
.gradient-fixed-9369,
.preview_3cec {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-section);
  border-radius: var(--radius-md);
}

.top_1629 {
  margin: var(--space-md) 0;
  padding: var(--space-md);
  background: var(--color-bg-section);
  border-radius: var(--radius-md);
}

.row_clean_941f {
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.focus_be50 {
  display: block;
  padding: var(--space-sm);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: 'Courier New', monospace;
  font-size: 0.75rem;
  word-break: break-all;
  overflow-wrap: break-word;
  margin: var(--space-sm) 0;
}

@media (max-width: 480px) {
  .focus_be50 {
    font-size: 0.625rem;
  }
}

.brown-d217 {
  padding: 8px 16px;
  background: var(--color-primary);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
}

.brown-d217:hover {
  background: var(--color-primary-dark);
}

.title-black-d616 {
  margin-top: var(--space-xl);
  padding: var(--space-xl);
  background: var(--color-bg-section);
  border-radius: var(--radius-lg);
  text-align: center;
}

.title-black-d616 h4 {
  margin-bottom: var(--space-md);
}

.detail-advanced-bf5f {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

/* ============================================
   18. SECURITY SECTION
   ============================================ */
.outline-purple-6004 {
  max-width: 800px;
  margin: 0 auto var(--space-xl);
  font-size: 1.125rem;
  text-align: center;
  color: var(--color-text-light);
}

.row_simple_2956 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}

@media (max-width: 768px) {
  .row_simple_2956 {
    grid-template-columns: 1fr;
  }
}

.grid-7a66 {
  padding: var(--space-lg);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid;
}

.content_lower_10d8 {
  border-color: var(--color-success);
}

.section-silver-8bbf {
  border-color: var(--color-warning);
}

.bottom_52e6 {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

.content_lower_10d8 .bottom_52e6 {
  background: #e8f5e9;
  color: var(--color-success);
}

.section-silver-8bbf .bottom_52e6 {
  background: #fff3e0;
  color: var(--color-warning);
}

.grid-7a66 h4 {
  margin-bottom: var(--space-sm);
  font-size: 1.125rem;
}

.grid-7a66 p {
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.tooltip-gas-82e6 {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

.prev_5ff6 {
  margin: var(--space-xxl) 0;
}

.prev_5ff6 h3 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  text-align: center;
  margin-bottom: var(--space-md);
}

.prev_5ff6 > p {
  text-align: center;
  color: var(--color-text-light);
  margin-bottom: var(--space-xl);
}

.hidden_west_31e8 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .hidden_west_31e8 {
    grid-template-columns: 1fr;
  }
}

.article_4cbb {
  padding: var(--space-lg);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.article_4cbb h4 {
  margin-bottom: var(--space-md);
  font-size: 1.125rem;
  color: var(--color-primary);
}

.hover_bronze_a367 {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  cursor: pointer;
}

.hover_bronze_a367 input[type="checkbox"] {
  flex-shrink: 0;
  margin-top: 4px;
  cursor: pointer;
}

.progress-medium-7dab {
  margin-top: var(--space-xxl);
}

.nav-up-86ed {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: var(--space-xl);
  padding: var(--space-xl);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.title-in-564a {
  text-align: center;
}

.frame-bronze-7841 {
  width: 180px;
  height: 180px;
  margin: 0 auto var(--space-md);
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
}

.article-full-84a6 {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1;
  color: white;
}

.frame-bronze-7841 .preview_db56 {
  font-size: 1.5rem;
  font-weight: 600;
  color: rgba(255,255,255,0.8);
}

.red_b1b2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}

.shade_c4ea p {
  margin-bottom: var(--space-md);
}

.sort-liquid-1997 {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

@media (max-width: 768px) {
  .nav-up-86ed {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   19. REVIEW SECTION
   ============================================ */
.column-7b45 {
  max-width: 600px;
  margin: 0 auto var(--space-xxl);
}

.border-copper-5439 {
  padding: var(--space-xl);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
}

.aside_stone_c767 {
  margin-bottom: var(--space-xl);
}

.heading_3314 {
  font-size: 4rem;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
}

.message_old_102b {
  font-size: 2rem;
  color: #ffa000;
  letter-spacing: 4px;
  margin: var(--space-sm) 0;
}

.west_199f {
  color: var(--color-text-light);
}

.overlay_c664 {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.pattern_static_76bd {
  display: grid;
  grid-template-columns: 40px 1fr 50px;
  align-items: center;
  gap: var(--space-sm);
}

.breadcrumb-dark-7bc2 {
  font-weight: 600;
  color: var(--color-text);
}

.stone-d099 {
  height: 12px;
  background: var(--color-border-light);
  border-radius: 6px;
  overflow: hidden;
}

.border-old-a808 {
  height: 100%;
  background: linear-gradient(90deg, #ffa000 0%, #ff6f00 100%);
  transition: width var(--transition-slow);
}

.overlay-9184 {
  text-align: right;
  font-weight: 600;
  color: var(--color-text-light);
  font-size: 0.875rem;
}

.dynamic_ec37 {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.cool_6933 {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-xl);
}

.info-light-ddd9 {
  border: 2px solid #4caf50;
}

.layout-f2b5 {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
  gap: var(--space-md);
}

.outline-iron-b563 {
  display: flex;
  gap: var(--space-md);
  flex: 1;
}

.dynamic_0865 {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.125rem;
  flex-shrink: 0;
}

.main_huge_108d {
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.wood_a799 {
  display: inline-block;
  padding: 2px 8px;
  background: #4caf50;
  color: white;
  font-size: 0.75rem;
  border-radius: 10px;
  margin-left: 8px;
}

.silver_1cf4 {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.status-copper-a144 {
  text-align: right;
}

.status-copper-a144 .green-4800 {
  color: #ffa000;
  font-size: 1.125rem;
  margin-bottom: 4px;
}

.light_9279 {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.accent_385a h4 {
  margin-bottom: var(--space-sm);
  font-size: 1.125rem;
  color: var(--color-text);
}

.accent_385a p {
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.accordion-0ff0 {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin: var(--space-md) 0;
}

.bronze-2d46 {
  padding: 6px 12px;
  border-radius: 16px;
  font-size: 0.75rem;
  font-weight: 600;
}

.search-34f3 {
  background: #e8f5e9;
  color: #2e7d32;
}

.cold-37c8 {
  background: #e3f2fd;
  color: #1565c0;
}

.feature_f800 {
  background: #fff3e0;
  color: #e65100;
}

.center-1d18 {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-light);
}

.center-1d18 span {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.narrow-ab26 {
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.narrow-ab26:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-text-light);
}

.item_5920 {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: #f1f8ff;
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
}

.popup_1d89 {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
}

.popup_1d89 strong {
  color: var(--color-primary);
}

.easy-a6b4 {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.nav_5646 {
  text-align: center;
  margin-top: var(--space-xl);
}

/* ============================================
   20. FAQ SECTION
   ============================================ */
.widget-hard-4ae1 {
  max-width: 900px;
  margin: 0 auto;
}

.content-dark-fc88 {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-md);
  overflow: hidden;
}

.hover_f86c {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: transparent;
  border: none;
  text-align: left;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: var(--transition-fast);
}

.hover_f86c:hover {
  background: var(--color-bg-alt);
}

.dropdown_hard_72a4 {
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.hover_f86c[aria-expanded="true"] .dropdown_hard_72a4 {
  transform: rotate(180deg);
}

.iron-ccdb {
  display: none;
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--color-text-light);
  line-height: 1.7;
}

.iron-ccdb h5 {
  font-size: 1rem;
  font-weight: 600;
  margin: var(--space-md) 0 var(--space-sm);
  color: var(--color-text);
}

.iron-ccdb ul,
.iron-ccdb ol {
  margin: var(--space-sm) 0;
  padding-left: var(--space-lg);
}

.iron-ccdb li {
  margin-bottom: var(--space-xs);
}

.section-cool-1b64 {
  margin: var(--space-md) 0;
  padding: var(--space-md);
  background: #1e1e1e;
  color: #d4d4d4;
  border-radius: var(--radius-md);
  overflow-x: auto;
}

.stone_1b2d {
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: #9cdcfe;
}

.section-cool-1b64 code {
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  line-height: 1.5;
}

/* ============================================
   21. CONCLUSION SECTION
   ============================================ */
.hover_steel_dec7 {
  max-width: 800px;
  margin: 0 auto var(--space-xxl);
  text-align: center;
}

.wood-ba9d {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  margin: var(--space-xl) 0;
}

.menu-b11b {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4caf50 0%, #2e7d32 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
}

.pro_02a7 {
  padding: 12px 24px;
  background: #4caf50;
  color: white;
  font-size: 1.25rem;
  font-weight: 700;
  border-radius: 30px;
  box-shadow: var(--shadow-md);
}

.shade-3f10 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-xl);
  margin: var(--space-xxl) 0;
}

@media (max-width: 768px) {
  .shade-3f10 {
    grid-template-columns: 1fr;
  }
}

.down_8edf,
.lower_a33f {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.down_8edf {
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
}

.lower_a33f {
  background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
}

.down_8edf h4,
.lower_a33f h4 {
  margin-bottom: var(--space-lg);
  font-size: 1.5rem;
}

.down_8edf ul,
.lower_a33f ul {
  list-style: none;
  padding: 0;
}

.down_8edf li,
.lower_a33f li {
  padding: var(--space-sm) 0;
  line-height: 1.6;
}

.form-static-d1f8 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-xl);
  margin: var(--space-xxl) 0;
}

@media (max-width: 768px) {
  .form-static-d1f8 {
    grid-template-columns: 1fr;
  }
}

.main-hard-1e51 {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.tooltip_b708 {
  background: linear-gradient(135deg, #4caf50 0%, #66bb6a 100%);
  color: white;
}

.tall-c52c {
  background: linear-gradient(135deg, #f44336 0%, #e57373 100%);
  color: white;
}

.main-hard-1e51 h4 {
  margin-bottom: var(--space-lg);
  font-size: 1.5rem;
  color: white;
}

.main-hard-1e51 ul {
  list-style: none;
  padding: 0;
}

.main-hard-1e51 li {
  padding: var(--space-xs) 0;
  color: white;
}

.component-bright-0b20 {
  max-width: 800px;
  margin: var(--space-xxl) auto;
}

.component-bright-0b20 h3 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  margin-bottom: var(--space-lg);
  text-align: center;
}

.component-bright-0b20 p {
  margin-bottom: var(--space-md);
  color: var(--color-text-light);
  line-height: 1.8;
}

.pressed_d9d1 {
  margin-top: var(--space-xl);
  padding: var(--space-xl);
  background: var(--color-bg-section);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
}

.inner-e8ad {
  font-style: italic;
}

.table-red-b5cc {
  display: block;
  margin-top: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.article_rough_b071 {
  margin-top: var(--space-xxl);
  padding: var(--space-xxl);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-xl);
  text-align: center;
  color: white;
}

.article_rough_b071 h3 {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: var(--space-md);
  color: white;
}

.article_rough_b071 p {
  font-size: 1.125rem;
  margin-bottom: var(--space-xl);
  color: rgba(255,255,255,0.9);
}

.tabs-42dc {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
}

/* ============================================
   22. RELATED CONTENT
   ============================================ */
.glass_fe9b {
  padding: var(--space-xxl) 0;
  background: var(--color-bg-section);
}

.mask_1d09 {
  font-family: var(--font-heading);
  font-size: 2rem;
  text-align: center;
  margin-bottom: var(--space-xl);
}

.advanced_8fa1 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .advanced_8fa1 {
    grid-template-columns: 1fr;
  }
}

.yellow-51ad {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-xl);
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  transition: var(--transition-base);
}

.yellow-51ad:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.tag_active_718f {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.yellow-51ad h4 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.yellow-51ad p {
  color: var(--color-text-light);
  font-size: 0.875rem;
}

/* ============================================
   23. FOOTER
   ============================================ */
.detail-over-dba4 {
  background: #212121;
  color: #e0e0e0;
  padding: var(--space-xxl) 0 var(--space-lg);
}

.copper-09af {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

@media (max-width: 768px) {
  .copper-09af {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

.title_wide_a0b9 h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: white;
  margin-bottom: var(--space-md);
}

.search_small_b71d p {
  color: #b0b0b0;
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.smooth_5f59 {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.smooth_5f59 .section_e138 {
  color: #4caf50;
  font-size: 0.875rem;
}

.clean-1ac3 {
  list-style: none;
  padding: 0;
}

.clean-1ac3 li {
  margin-bottom: var(--space-xs);
}

.clean-1ac3 a {
  color: #b0b0b0;
  text-decoration: none;
  transition: var(--transition-fast);
}

.clean-1ac3 a:hover {
  color: white;
}

.tertiary-71ab {
  list-style: none;
  padding: 0;
}

.tertiary-71ab li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  color: #b0b0b0;
}

.tertiary-71ab a {
  color: #b0b0b0;
  text-decoration: none;
}

.tertiary-71ab a:hover {
  color: white;
}

.box_f098 {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-lg);
  border-top: 1px solid #424242;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.basic_8897 p {
  font-size: 0.875rem;
  color: #808080;
  margin-bottom: var(--space-xs);
}

.basic_8897 a {
  color: #4caf50;
  text-decoration: none;
}

.steel-8ca2 {
  font-size: 0.75rem;
  color: #666666;
}

.solid_0f16 {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.875rem;
  color: #808080;
}

.container-tall-b6e9 {
  color: var(--color-primary-light);
  text-decoration: none;
  font-weight: 600;
}

.container-tall-b6e9:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .box_f098 {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================
   24. RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 1200px) {
  :root {
    font-size: 15px;
  }
}

@media (max-width: 968px) {
  :root {
    --space-xxl: 3rem;
  }
  
  .panel_selected_10d4 {
    font-size: 2rem;
  }
  
  .pattern_4d91 {
    font-size: 1.75rem;
  }
  
  /* Ensure all grids are single column */
  .modal-medium-5340,
  .detail_upper_3fef {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    font-size: 14px;
    --space-xl: 2rem;
    --space-xxl: 2.5rem;
  }
  
  .pattern_d0b4,
  .row_simple_2956,
  .header-5973,
  .hidden_west_31e8,
  .shade-3f10,
  .form-static-d1f8,
  .advanced_8fa1,
  .copper-09af {
    grid-template-columns: 1fr;
  }
  
  .shadow-a2fd {
    grid-template-columns: repeat(2, 1fr);
  }
  
  /* Mobile-specific adjustments */
  .west_320f {
    padding: var(--space-lg) 0;
  }
  
  .background_5bc8 li a {
    font-size: 0.875rem;
    padding: var(--space-xs);
  }
  
  .background_5bc8 li a:before {
    width: 28px;
    height: 28px;
    font-size: 0.875rem;
  }
  
  /* Improve mobile readability */
  p, li {
    font-size: 0.9375rem;
  }
  
  /* Better touch targets */
  .accordion_23dc {
    min-height: 44px;
  }
  
  /* Optimize images for mobile */
  img {
    height: auto;
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  :root {
    --space-lg: 1.5rem;
    --space-xl: 1.75rem;
    --space-xxl: 2rem;
  }
  
  .shadow-a2fd {
    grid-template-columns: 1fr;
  }
  
  .purple-3cc2,
  .tabs-42dc,
  .detail-advanced-bf5f {
    flex-direction: column;
    width: 100%;
  }
  
  .hero_new_bfc2,
  .tall_7d4a,
  .purple-3cc2 .accordion_23dc,
  .tabs-42dc .accordion_23dc {
    width: 100%;
  }
  
  /* Smaller font sizes for very small screens */
  .panel_selected_10d4 {
    font-size: 1.5rem;
    line-height: 1.3;
  }
  
  .pattern_4d91 {
    font-size: 1.375rem;
  }
  
  .old-477c {
    font-size: 2rem;
  }
  
  /* Reduce padding on small screens */
  .primary-31f2,
  .feature_26fa,
  .item_77ef,
  .cool_6933,
  .card-aef7 {
    padding: var(--space-md);
  }
  
  /* Improve code readability on mobile */
  code,
  .focus_be50 {
    font-size: 0.625rem;
    word-break: break-all;
  }
  
  /* Better meta display */
  .copper-c354 {
    gap: var(--space-xs);
  }
  
  .lower_6289 {
    font-size: 0.75rem;
  }
  
  /* Optimize score circles */
  .section_35c6 {
    width: 100px;
    height: 100px;
    font-size: 2.5rem;
  }
  
  .frame-bronze-7841 {
    width: 150px;
    height: 150px;
  }
  
  .article-full-84a6 {
    font-size: 3rem;
  }
}

/* ============================================
   25. PRINT STYLES
   ============================================ */
@media print {
  .paragraph-20e5,
  .texture-center-8653,
  .purple-3cc2,
  .article_rough_b071,
  .glass_fe9b,
  .detail-over-dba4,
  .shade-123f {
    display: none;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
  }
  
  .west_320f {
    page-break-inside: avoid;
  }
}

/* css-noise: eb39 */
.action-9233 {
  padding: 0.3rem;
  font-size: 14px;
  line-height: 1.3;
}

/* css-noise: 085c */
.ghost-box-o8 {
  padding: 0.1rem;
  font-size: 13px;
  line-height: 1.3;
}