/* 蘑菇视频 - 完整UI样式表 */
:root {
  --bg-light: #f5f7fa;
  --bg-card: #ffffff;
  --text-primary: #1e2a3a;
  --text-secondary: #2c3e50;
  --text-tertiary: #34495e;
  --text-heading: #0f1c2e;
  --accent: #0a66c2;
  --accent-dark: #084b8e;
  --border-light: #cbd5e1;
  --footer-bg: #0b1e2f;
  --footer-text: #d1d9e6;
  --nav-bg: rgba(255,255,255,0.95);
  --shadow: rgba(0,0,0,0.05);
  --gradient-primary: linear-gradient(135deg, #0a2a44 0%, #0a66c2 50%, #1e88e5 100%);
  --gradient-soft: linear-gradient(135deg, rgba(10,102,194,0.08) 0%, rgba(30,136,229,0.04) 100%);
  --glass-bg: rgba(255,255,255,0.7);
  --glass-border: rgba(255,255,255,0.3);
  --card-shadow: 0 4px 20px rgba(0,0,0,0.06);
  --card-shadow-hover: 0 12px 40px rgba(0,0,0,0.1);
  --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  --font-display: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", "Fira Code", monospace;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --container-max: 1280px;
}

[data-theme="dark"] {
  --bg-light: #0d1520;
  --bg-card: #16202e;
  --text-primary: #e2e8f0;
  --text-secondary: #cbd5e1;
  --text-tertiary: #b6c2d1;
  --text-heading: #ffffff;
  --accent: #7cb8f0;
  --accent-dark: #a3c9f0;
  --border-light: #2d3f54;
  --footer-bg: #0a121c;
  --footer-text: #b0c4d9;
  --nav-bg: rgba(13,21,32,0.95);
  --shadow: rgba(0,0,0,0.3);
  --gradient-primary: linear-gradient(135deg, #0a2a44 0%, #1a4a7a 50%, #2d6ea8 100%);
  --gradient-soft: linear-gradient(135deg, rgba(124,184,240,0.12) 0%, rgba(163,201,240,0.06) 100%);
  --glass-bg: rgba(22,32,46,0.7);
  --glass-border: rgba(255,255,255,0.08);
  --card-shadow: 0 4px 20px rgba(0,0,0,0.3);
  --card-shadow-hover: 0 12px 40px rgba(0,0,0,0.4);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-light);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  transition: background 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

.site-header {
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-light);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--text-heading);
  letter-spacing: -0.5px;
  flex-shrink: 0;
  transition: opacity 0.2s;
}

.logo:hover {
  opacity: 0.85;
}

.logo svg {
  height: 34px;
  width: 34px;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(10,42,68,0.2);
}

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li {
  position: relative;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  transition: var(--transition-base);
  font-size: 0.95rem;
  display: block;
}

.nav-links a:hover {
  color: var(--accent-dark);
  background: var(--gradient-soft);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 60%;
}

.header-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: 4px 16px;
  transition: var(--transition-base);
  width: 200px;
}

.search-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(10,102,194,0.1);
  width: 240px;
}

.search-box input {
  border: none;
  background: transparent;
  padding: 8px 8px;
  color: var(--text-primary);
  outline: none;
  font-size: 0.9rem;
  width: 100%;
}

.search-box input::placeholder {
  color: var(--text-tertiary);
}

.search-box button {
  background: none;
  border: none;
  color: var(--accent-dark);
  cursor: pointer;
  font-size: 1rem;
  padding: 4px;
  transition: transform 0.2s;
}

.search-box button:hover {
  transform: scale(1.2);
}

.theme-toggle,
.menu-toggle {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  cursor: pointer;
  color: var(--text-primary);
  font-size: 1.1rem;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-base);
  padding: 0;
}

.theme-toggle:hover,
.menu-toggle:hover {
  background: var(--gradient-soft);
  border-color: var(--accent);
  transform: scale(1.05);
}

.menu-toggle {
  display: none;
}

@media (max-width: 768px) {
  .nav-wrap {
    flex-wrap: wrap;
    padding: 10px 0;
  }
  
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 4px;
    background: var(--bg-card);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--card-shadow);
    border-radius: 0 0 16px 16px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
  }
  
  .nav-links.active {
    display: flex;
    animation: slideDown 0.3s ease;
  }
  
  @keyframes slideDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .nav-links a {
    padding: 12px 16px;
    font-size: 1rem;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .search-box {
    display: none;
  }
  
  .header-actions {
    margin-left: auto;
  }
}

.breadcrumb {
  font-size: 0.85rem;
  padding: 16px 0 8px;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--accent-dark);
  text-decoration: none;
  transition: color 0.2s;
}

.breadcrumb a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.hero-section {
  padding: 48px 0 24px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(10,102,194,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
  position: relative;
}

.hero-copy h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--text-heading);
  line-height: 1.2;
  margin-bottom: 20px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}

.hero-copy p {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--text-secondary);
  margin-bottom: 32px;
  line-height: 1.8;
  max-width: 480px;
}

.btn-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  background: var(--accent);
  color: #ffffff;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 16px rgba(10,102,194,0.3);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255,255,255,0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:hover::after {
  width: 300px;
  height: 300px;
}

.btn:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(10,102,194,0.4);
}

.btn:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent-dark);
  box-shadow: none;
}

.btn-outline:hover {
  background: var(--gradient-soft);
  border-color: var(--accent-dark);
  color: var(--accent-dark);
  box-shadow: 0 4px 16px rgba(10,102,194,0.15);
}

.btn-outline::after {
  display: none;
}

.hero-visual {
  position: relative;
}

.hero-visual svg {
  width: 100%;
  height: auto;
  border-radius: 24px;
  box-shadow: 0 24px 48px rgba(0,0,0,0.12);
  transition: transform 0.5s ease;
}

.hero-visual:hover svg {
  transform: scale(1.02) rotate(1deg);
}

.hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
  pointer-events: none;
}

.stats-row {
  display: flex;
  justify-content: space-around;
  margin: 40px 0;
  flex-wrap: wrap;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 28px 20px;
  box-shadow: var(--card-shadow);
  gap: 20px;
}

.stat-item {
  text-align: center;
  flex: 1;
  min-width: 120px;
}

.stat-number {
  font-size: clamp(2rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--accent-dark);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 32px 0;
}

.card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--glass-border);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--accent);
}

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

.card h3 {
  color: var(--text-heading);
  font-size: 1.3rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.card .more {
  color: var(--accent-dark);
  font-weight: 600;
  text-decoration: none;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}

.card .more:hover {
  color: var(--accent);
  gap: 10px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--text-heading);
  margin: 48px 0 24px;
  border-left: 6px solid var(--accent);
  padding-left: 16px;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1.3;
}

.article-list {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 8px 24px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--card-shadow);
}

.article-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  border-bottom: 1px dashed var(--border-light);
  gap: 16px;
  transition: padding-left 0.3s ease;
}

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

.article-item:hover {
  padding-left: 12px;
}

.article-item a {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  flex: 1;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 10px;
}

.article-item a::before {
  content: '▍';
  color: var(--accent);
  font-size: 0.8em;
  opacity: 0.6;
}

.article-item a:hover {
  color: var(--accent-dark);
}

.article-date {
  color: var(--text-tertiary);
  font-size: 0.85rem;
  white-space: nowrap;
}

@media (max-width: 640px) {
  .article-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  
  .article-date {
    font-size: 0.8rem;
  }
}

.howto-box {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-xl);
  padding: 36px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--card-shadow);
  position: relative;
  overflow: hidden;
}

.howto-box::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  background: var(--gradient-soft);
  border-radius: 50%;
  pointer-events: none;
}

.howto-box h3 {
  color: var(--text-heading);
  font-size: 1.5rem;
  margin-bottom: 20px;
  font-weight: 700;
}

.howto-box ol {
  padding-left: 24px;
  color: var(--text-secondary);
  counter-reset: howto-counter;
  list-style: none;
}

.howto-box ol li {
  counter-increment: howto-counter;
  margin-bottom: 14px;
  position: relative;
  padding-left: 36px;
  line-height: 1.8;
}

.howto-box ol li::before {
  content: counter(howto-counter);
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  background: var(--gradient-primary);
  color: #fff;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.howto-box ol li strong {
  color: var(--text-heading);
}

.faq-item {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 12px;
  border-left: 4px solid var(--accent);
  border: 1px solid var(--glass-border);
  border-left-width: 4px;
  transition: var(--transition-base);
  cursor: pointer;
}

.faq-item:hover {
  background: var(--bg-card);
  border-color: var(--accent);
  transform: translateX(4px);
}

.faq-question {
  font-weight: 600;
  color: var(--text-heading);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: 1rem;
  user-select: none;
}

.faq-question span {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-question span {
  transform: rotate(45deg);
}

.faq-answer {
  color: var(--text-secondary);
  margin-top: 12px;
  display: none;
  line-height: 1.7;
  font-size: 0.95rem;
  padding-top: 12px;
  border-top: 1px dashed var(--border-light);
  animation: fadeIn 0.3s ease;
}

.faq-item.active .faq-answer {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 56px 0 24px;
  margin-top: 64px;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-primary);
  opacity: 0.6;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 48px;
}

.footer-grid h4 {
  color: #ffffff;
  margin-bottom: 20px;
  font-size: 1.1rem;
  font-weight: 700;
  position: relative;
  padding-bottom: 8px;
}

.footer-grid h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
}

.footer-grid a {
  color: var(--footer-text);
  display: block;
  margin-bottom: 10px;
  text-decoration: none;
  transition: var(--transition-base);
  font-size: 0.9rem;
  opacity: 0.8;
}

.footer-grid a:hover {
  color: #ffffff;
  text-decoration: none;
  opacity: 1;
  transform: translateX(4px);
}

.footer-grid p {
  font-size: 0.9rem;
  line-height: 1.8;
  opacity: 0.8;
  margin-bottom: 8px;
}

.copyright {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  margin-top: 40px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.8;
}

.copyright p {
  margin-bottom: 8px;
}

.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  background: var(--accent);
  color: white;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(10,102,194,0.4);
  transition: var(--transition-base);
  z-index: 999;
  font-size: 1.4rem;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(10,102,194,0.5);
  background: var(--accent-dark);
}

.scroll-animation {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

.scroll-animation.visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-animation:nth-child(2) {
  transition-delay: 0.1s;
}

.scroll-animation:nth-child(3) {
  transition-delay: 0.2s;
}

.scroll-animation:nth-child(4) {
  transition-delay: 0.3s;
}

.scroll-animation:nth-child(5) {
  transition-delay: 0.4s;
}

@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  
  .hero-copy {
    text-align: center;
  }
  
  .hero-copy p {
    margin-left: auto;
    margin-right: auto;
  }
  
  .btn-group {
    justify-content: center;
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  
  .hero-section {
    padding: 32px 0 16px;
  }
  
  .stats-row {
    gap: 16px;
    padding: 20px 12px;
    border-radius: 20px;
  }
  
  .stat-item {
    min-width: 80px;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .section-title {
    font-size: 1.5rem;
    margin: 32px 0 16px;
  }
  
  .howto-box {
    padding: 24px;
    border-radius: 20px;
  }
  
  .howto-box ol {
    padding-left: 0;
  }
  
  .howto-box ol li {
    padding-left: 32px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }
  
  .faq-item {
    padding: 16px 20px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 12px;
  }
  
  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }
  
  .hero-copy h1 {
    font-size: 1.8rem;
  }
  
  .stat-number {
    font-size: 1.8rem;
  }
  
  .stat-label {
    font-size: 0.8rem;
  }
  
  .card {
    padding: 20px;
  }
  
  .article-list {
    padding: 8px 16px;
  }
  
  .article-item {
    padding: 14px 0;
  }
  
  .howto-box {
    padding: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .scroll-animation {
    opacity: 1;
    transform: none;
  }
}

@media (hover: hover) and (pointer: fine) {
  .card:hover {
    transform: translateY(-8px);
  }
  
  .btn:hover {
    transform: translateY(-2px);
  }
}

::selection {
  background: var(--accent);
  color: #ffffff;
}

::-moz-selection {
  background: var(--accent);
  color: #ffffff;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 5px;
  transition: background 0.3s;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-dark);
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.section-title + .card-grid,
.section-title + .article-list,
.section-title + .howto-box {
  margin-top: 0;
}

.article-list + p {
  text-align: right;
  margin-top: 16px;
}

.article-list + p a {
  color: var(--accent-dark);
  font-weight: 600;
  transition: color 0.2s, gap 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-list + p a:hover {
  color: var(--accent);
  gap: 10px;
}

[data-theme="dark"] .nav-links a:hover {
  background: rgba(124,184,240,0.1);
}

[data-theme="dark"] .search-box input::placeholder {
  color: #6b7a8d;
}

[data-theme="dark"] .stat-number {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="dark"] .btn {
  color: #0d1520;
  background: #7cb8f0;
}

[data-theme="dark"] .btn:hover {
  background: #a3c9f0;
}

[data-theme="dark"] .btn-outline {
  border-color: #7cb8f0;
  color: #7cb8f0;
}

[data-theme="dark"] .btn-outline:hover {
  background: rgba(124,184,240,0.1);
  color: #a3c9f0;
  border-color: #a3c9f0;
}

[data-theme="dark"] .card .more {
  color: #7cb8f0;
}

[data-theme="dark"] .faq-question span {
  color: #7cb8f0;
}

[data-theme="dark"] .back-to-top {
  background: #7cb8f0;
  color: #0d1520;
}

[data-theme="dark"] .back-to-top:hover {
  background: #a3c9f0;
}

@media print {
  .site-header,
  .back-to-top,
  .theme-toggle,
  .menu-toggle,
  .search-box,
  .breadcrumb {
    display: none !important;
  }
  
  body {
    background: #ffffff;
    color: #000000;
  }
  
  .card,
  .article-list,
  .howto-box,
  .faq-item {
    break-inside: avoid;
    background: #ffffff;
    border: 1px solid #cccccc;
  }
  
  .site-footer {
    background: #ffffff;
    color: #000000;
  }
}