:root {
  --color-primary: #6d4c41;
  --color-primary-dark: #3e2723;
  --color-primary-light: #bcaaa4;
  --color-bg: #faf7f2;
  --color-bg-alt: #f5efe8;
  --color-surface: #ffffff;
  --color-surface-alt: #f0e8e0;
  --color-border: #e0d6cc;
  --color-border-light: #f0e8e0;
  --color-text: #2c2c2c;
  --color-text-secondary: #5d4e44;
  --color-text-muted: #7a6a5e;
  --color-text-light: #9e8e82;
  --color-accent: #d4a373;
  --color-accent-2: #a67c52;
  --shadow-sm: 0 2px 8px rgba(109, 76, 65, 0.06);
  --shadow-md: 0 4px 16px rgba(109, 76, 65, 0.08);
  --shadow-lg: 0 8px 32px rgba(109, 76, 65, 0.12);
  --shadow-xl: 0 16px 48px rgba(109, 76, 65, 0.16);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  --gradient-banner-1: linear-gradient(135deg, #f5efe8 0%, #e8ddd0 50%, #dcc9b6 100%);
  --gradient-banner-2: linear-gradient(135deg, #efe6dc 0%, #e0d0c0 50%, #d4bfa8 100%);
  --gradient-banner-3: linear-gradient(135deg, #f0e8e0 0%, #e5d5c5 50%, #d8c4b0 100%);
  --gradient-accent: linear-gradient(135deg, #6d4c41 0%, #a67c52 100%);
  --glass-bg: rgba(250, 247, 242, 0.72);
  --glass-border: rgba(255, 255, 255, 0.4);
  --glass-blur: 16px;
}

body.dark-mode {
  --color-primary: #bcaaa4;
  --color-primary-dark: #d7ccc8;
  --color-primary-light: #8d6e63;
  --color-bg: #1a1a1a;
  --color-bg-alt: #222222;
  --color-surface: #2a2a2a;
  --color-surface-alt: #333333;
  --color-border: #3a3a3a;
  --color-border-light: #2e2e2e;
  --color-text: #e0e0e0;
  --color-text-secondary: #b0a89e;
  --color-text-muted: #9e8e82;
  --color-text-light: #7a6a5e;
  --color-accent: #d4a373;
  --color-accent-2: #c49a6c;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
  --gradient-banner-1: linear-gradient(135deg, #2d2d2d 0%, #252525 50%, #1e1e1e 100%);
  --gradient-banner-2: linear-gradient(135deg, #2a2a2a 0%, #222222 50%, #1a1a1a 100%);
  --gradient-banner-3: linear-gradient(135deg, #282828 0%, #202020 50%, #181818 100%);
  --gradient-accent: linear-gradient(135deg, #bcaaa4 0%, #8d6e63 100%);
  --glass-bg: rgba(30, 30, 30, 0.78);
  --glass-border: rgba(255, 255, 255, 0.08);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 16px;
  transition: background-color var(--transition-base), color var(--transition-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

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

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

ul,
ol {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

.sticky-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  box-shadow: 0 1px 0 rgba(109, 76, 65, 0.04);
}

body.dark-mode .sticky-nav {
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 20px;
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-primary);
  white-space: nowrap;
  letter-spacing: -0.02em;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: opacity var(--transition-fast);
}

.logo:hover {
  text-decoration: none;
  opacity: 0.85;
}

body.dark-mode .logo {
  background: linear-gradient(135deg, #d7ccc8 0%, #bcaaa4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
  font-weight: 500;
}

.nav-links a {
  font-size: 0.95rem;
  position: relative;
  padding: 4px 0;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 2px;
  transition: width var(--transition-base);
}

.nav-links a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0 6px 0 14px;
  height: 40px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.search-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(109, 76, 65, 0.1);
}

body.dark-mode .search-box:focus-within {
  box-shadow: 0 0 0 3px rgba(188, 170, 164, 0.15);
}

.search-box input {
  border: none;
  outline: none;
  background: transparent;
  padding: 6px 4px;
  font-size: 0.9rem;
  width: 130px;
  color: var(--color-text);
  font-family: inherit;
}

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

.search-box button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  color: var(--color-primary);
  padding: 6px 8px;
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), transform var(--transition-fast);
  line-height: 1;
}

.search-box button:hover {
  background: var(--color-surface-alt);
  transform: scale(1.1);
}

.theme-toggle,
.mobile-menu-btn {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--color-text);
  transition: background var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
  flex-shrink: 0;
}

.theme-toggle:hover,
.mobile-menu-btn:hover {
  background: var(--color-surface-alt);
  transform: scale(1.08);
  border-color: var(--color-primary);
}

.theme-toggle:active,
.mobile-menu-btn:active {
  transform: scale(0.95);
}

.mobile-menu-btn {
  display: none;
}

.mobile-nav {
  display: none;
  flex-direction: column;
  padding: 8px 20px 16px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--color-border);
  animation: slideDown 0.3s ease;
}

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

.mobile-nav a {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border-light);
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.mobile-nav a:hover {
  color: var(--color-primary);
  padding-left: 8px;
  text-decoration: none;
}

.mobile-nav.open {
  display: flex;
}

main.container {
  padding-top: 0;
  padding-bottom: 0;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  padding: 16px 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.breadcrumb li:not(:last-child)::after {
  content: '›';
  margin-left: 6px;
  color: var(--color-text-light);
}

.breadcrumb a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

#intro {
  padding: 8px 0 16px;
}

#intro h1 {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--color-primary-dark);
  margin-bottom: 8px;
}

body.dark-mode #intro h1 {
  color: var(--color-primary-dark);
}

#intro p {
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

#intro p:first-of-type {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  margin: 16px 0;
}

.anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0;
}

.anchor-nav a {
  background: var(--color-surface);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.anchor-nav a:hover {
  background: var(--gradient-accent);
  color: #fff;
  text-decoration: none;
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

body.dark-mode .anchor-nav a:hover {
  color: #1a1a1a;
}

.banner-section {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  margin: 30px 0;
  background: var(--color-bg-alt);
  box-shadow: var(--shadow-lg);
}

.banner-slides {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}

.banner-slide {
  min-width: 100%;
  padding: 64px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  border-radius: var(--radius-xl);
  position: relative;
  overflow: hidden;
}

.banner-slide::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
  pointer-events: none;
}

.banner-slide:nth-child(1) {
  background: var(--gradient-banner-1);
}

.banner-slide:nth-child(2) {
  background: var(--gradient-banner-2);
}

.banner-slide:nth-child(3) {
  background: var(--gradient-banner-3);
}

body.dark-mode .banner-slide::before {
  background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
}

.banner-slide h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  line-height: 1.3;
  position: relative;
  z-index: 1;
}

body.dark-mode .banner-slide h2 {
  color: var(--color-primary-dark);
}

.banner-slide p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  position: relative;
  z-index: 1;
}

body.dark-mode .banner-slide p {
  color: var(--color-text-secondary);
}

.banner-dots {
  display: flex;
  gap: 10px;
  justify-content: center;
  padding: 18px 0;
}

.banner-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  padding: 0;
}

.banner-dot:hover {
  background: var(--color-primary-light);
  transform: scale(1.2);
}

.banner-dot.active {
  background: var(--gradient-accent);
  width: 28px;
  border-radius: var(--radius-full);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px;
  margin: 30px 0;
}

.stat-item {
  text-align: center;
  padding: 28px 20px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

body.dark-mode .stat-number {
  background: linear-gradient(135deg, #d7ccc8 0%, #bcaaa4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

section[id] {
  padding: 32px 0;
}

section[id] h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
  position: relative;
  padding-bottom: 12px;
}

body.dark-mode section[id] h2 {
  color: var(--color-primary-dark);
}

section[id] h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: 3px;
}

section[id] h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 20px 0 10px;
}

section[id] p {
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

section[id] ul,
section[id] ol {
  color: var(--color-text-secondary);
}

section[id] ul li,
section[id] ol li {
  margin-bottom: 6px;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

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

.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 10px;
}

body.dark-mode .card h3 {
  color: var(--color-primary-dark);
}

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

.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin: 30px 0;
}

.article-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--color-border-light);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.article-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.article-card:hover::after {
  transform: scaleX(1);
}

.article-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-primary-dark);
  line-height: 1.4;
  transition: color var(--transition-fast);
}

body.dark-mode .article-card h3 {
  color: var(--color-primary-dark);
}

.article-card:hover h3 {
  color: var(--color-primary);
}

.article-meta {
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.article-meta::before {
  content: '📅';
  font-size: 0.75rem;
}

.article-excerpt {
  font-size: 0.93rem;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
  flex: 1;
}

.read-more {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-fast), color var(--transition-fast);
  margin-top: auto;
}

.read-more:hover {
  text-decoration: none;
  gap: 8px;
  color: var(--color-primary-dark);
}

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

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

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 20px 0;
  font-size: 1.02rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-text);
  gap: 16px;
  transition: color var(--transition-fast);
  font-family: inherit;
  line-height: 1.5;
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease, opacity 0.4s ease;
  padding: 0;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  opacity: 0;
}

.faq-answer.open {
  max-height: 500px;
  padding: 0 0 20px 0;
  opacity: 1;
}

.faq-icon {
  font-size: 1.4rem;
  transition: transform var(--transition-base);
  color: var(--color-primary);
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-surface-alt);
  line-height: 1;
}

.faq-icon.open {
  transform: rotate(45deg);
  background: var(--gradient-accent);
  color: #fff;
}

body.dark-mode .faq-icon.open {
  color: #1a1a1a;
}

.howto-steps {
  counter-reset: step;
  list-style: none;
  margin: 24px 0;
  padding: 0;
}

.howto-steps li {
  position: relative;
  padding-left: 56px;
  margin-bottom: 28px;
  min-height: 40px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.howto-steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 38px;
  height: 38px;
  background: var(--gradient-accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.howto-steps li:hover::before {
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

body.dark-mode .howto-steps li::before {
  color: #1a1a1a;
}

.howto-steps li strong {
  color: var(--color-primary-dark);
}

body.dark-mode .howto-steps li strong {
  color: var(--color-primary-dark);
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: #fff;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

body.dark-mode .back-to-top {
  color: #1a1a1a;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  transform: scale(1.12) translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.back-to-top:active {
  transform: scale(0.95);
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

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

.author-box {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  margin: 24px 0;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base);
}

.author-box:hover {
  box-shadow: var(--shadow-md);
}

.author-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gradient-accent);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.author-avatar::after {
  content: '👤';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: rgba(255, 255, 255, 0.9);
}

.author-box strong {
  color: var(--color-primary-dark);
  font-size: 1rem;
}

body.dark-mode .author-box strong {
  color: var(--color-primary-dark);
}

.author-box span {
  color: var(--color-text-light);
}

blockquote {
  background: var(--color-surface);
  padding: 24px;
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-primary);
  margin: 16px 0;
  box-shadow: var(--shadow-sm);
  color: var(--color-text-secondary);
  font-style: italic;
  line-height: 1.8;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
}

blockquote::before {
  content: '"';
  position: absolute;
  top: 8px;
  left: 16px;
  font-size: 3rem;
  color: var(--color-primary-light);
  opacity: 0.3;
  font-family: Georgia, serif;
  line-height: 1;
}

blockquote:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.tag {
  display: inline-block;
  background: var(--color-surface-alt);
  padding: 4px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  margin: 2px;
  color: var(--color-text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.tag:hover {
  background: var(--gradient-accent);
  color: #fff;
}

body.dark-mode .tag:hover {
  color: #1a1a1a;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.info-table th,
.info-table td {
  padding: 14px 18px;
  border: 1px solid var(--color-border);
  text-align: left;
  transition: background var(--transition-fast);
}

.info-table th {
  background: var(--color-surface-alt);
  font-weight: 600;
  color: var(--color-primary-dark);
  white-space: nowrap;
  width: 120px;
}

body.dark-mode .info-table th {
  color: var(--color-primary-dark);
}

.info-table td {
  color: var(--color-text-secondary);
  background: var(--color-surface);
}

.info-table tr:hover td {
  background: var(--color-bg-alt);
}

#news ul li {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  transition: padding-left var(--transition-fast);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
}

#news ul li:last-child {
  border-bottom: none;
}

#news ul li:hover {
  padding-left: 8px;
}

#news ul li a {
  font-weight: 500;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

#news ul li a:hover {
  color: var(--color-primary);
}

#news ul li span {
  color: var(--color-text-light);
  font-size: 0.82rem;
  margin-left: auto;
}

.footer {
  background: #2c2c2c;
  color: #d0c8c0;
  padding: 60px 0 24px;
  margin-top: 60px;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
}

body.dark-mode .footer {
  background: #111111;
}

.footer a {
  color: #bcaaa4;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.footer a:hover {
  color: #ffffff;
  text-decoration: none;
  padding-left: 4px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 36px;
  margin-bottom: 40px;
}

.footer h4 {
  color: #ffffff;
  margin-bottom: 18px;
  font-size: 1.05rem;
  font-weight: 700;
  position: relative;
  padding-bottom: 10px;
}

.footer h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--gradient-accent);
  border-radius: 2px;
}

.footer ul {
  list-style: none;
}

.footer li {
  margin-bottom: 10px;
  font-size: 0.9rem;
}

.footer p {
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-bottom {
  border-top: 1px solid #3a3a3a;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: #9e8e82;
}

.footer-bottom p {
  margin-bottom: 4px;
}

.lazy-img {
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  min-height: 160px;
  position: relative;
  overflow: hidden;
}

.lazy-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

body.dark-mode .lazy-img::after {
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent);
}

#legal {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

#legal h3 {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin: 16px 0 6px;
}

#legal p {
  color: var(--color-text-light);
  font-size: 0.88rem;
}

#contact ul[style*="columns"] {
  columns: 2;
  column-gap: 24px;
}

#contact ul[style*="columns"] li {
  break-inside: avoid;
  margin-bottom: 8px;
}

#contact ul[style*="columns"] a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast), padding-left var(--transition-fast);
  display: inline-block;
}

#contact ul[style*="columns"] a:hover {
  color: var(--color-primary);
  padding-left: 4px;
  text-decoration: none;
}

#testimonials blockquote {
  border-left-color: var(--color-accent);
}

#applications p,
#knowledge p,
#extended p,
#notes p {
  max-width: 900px;
}

#notes {
  background: var(--color-surface-alt);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin: 24px 0;
  border: 1px solid var(--color-border-light);
}

#notes h2 {
  margin-top: 0;
}

#notes p {
  color: var(--color-text-muted);
  font-size: 0.93rem;
  margin-bottom: 0;
}

::selection {
  background: var(--color-primary);
  color: #fff;
}

body.dark-mode ::selection {
  background: var(--color-primary-light);
  color: #1a1a1a;
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--color-primary-light);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-bg-alt);
}

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

body.dark-mode ::-webkit-scrollbar-track {
  background: #1a1a1a;
}

body.dark-mode ::-webkit-scrollbar-thumb {
  background: #555;
  border-color: #1a1a1a;
}

body.dark-mode ::-webkit-scrollbar-thumb:hover {
  background: #777;
}

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

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.stat-item:hover .stat-number {
  animation: pulse 0.6s ease;
}

@media (max-width: 1024px) {
  .nav-links {
    gap: 16px;
  }
  .nav-links a {
    font-size: 0.9rem;
  }
  .search-box input {
    width: 110px;
  }
  #intro h1 {
    font-size: 1.9rem;
  }
  .banner-slide h2 {
    font-size: 1.9rem;
  }
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .search-box input {
    width: 90px;
  }
  .article-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 18px;
  }
  #intro h1 {
    font-size: 1.7rem;
  }
  .banner-slide {
    padding: 48px 32px;
  }
  .banner-slide h2 {
    font-size: 1.7rem;
  }
  .banner-slide p {
    font-size: 1rem;
  }
  section[id] h2 {
    font-size: 1.5rem;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 15px;
  }
  .container {
    padding: 0 16px;
  }
  .nav-inner {
    height: 60px;
    gap: 12px;
  }
  .logo {
    font-size: 1.3rem;
  }
  .search-box {
    display: none;
  }
  .theme-toggle,
  .mobile-menu-btn {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
  .banner-section {
    margin: 20px 0;
    border-radius: var(--radius-lg);
  }
  .banner-slide {
    padding: 36px 20px;
    border-radius: var(--radius-lg);
  }
  .banner-slide h2 {
    font-size: 1.35rem;
    margin-bottom: 8px;
  }
  .banner-slide p {
    font-size: 0.92rem;
  }
  .banner-dots {
    padding: 12px 0;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .stat-item {
    padding: 20px 12px;
  }
  .stat-number {
    font-size: 1.8rem;
  }
  .stat-label {
    font-size: 0.82rem;
  }
  #intro h1 {
    font-size: 1.45rem;
  }
  #intro p:first-of-type {
    font-size: 1rem;
  }
  .anchor-nav {
    gap: 8px;
  }
  .anchor-nav a {
    padding: 6px 14px;
    font-size: 0.82rem;
  }
  section[id] {
    padding: 24px 0;
  }
  section[id] h2 {
    font-size: 1.3rem;
  }
  section[id] h3 {
    font-size: 1.05rem;
  }
  .article-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .card {
    padding: 20px;
  }
  .article-card {
    padding: 20px;
  }
  .faq-question {
    font-size: 0.95rem;
    padding: 16px 0;
  }
  .howto-steps li {
    padding-left: 48px;
    margin-bottom: 22px;
  }
  .howto-steps li::before {
    width: 32px;
    height: 32px;
    font-size: 0.9rem;
  }
  .info-table th,
  .info-table td {
    padding: 10px 12px;
    font-size: 0.88rem;
  }
  .info-table th {
    width: 90px;
  }
  #contact ul[style*="columns"] {
    columns: 1;
  }
  .author-box {
    flex-direction: column;
    text-align: center;
    padding: 16px;
  }
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
    font-size: 1.2rem;
  }
  .footer {
    padding: 40px 0 20px;
    margin-top: 40px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 28px;
  }
  #news ul li {
    flex-direction: column;
    gap: 4px;
  }
  #news ul li span {
    margin-left: 0;
  }
  blockquote {
    padding: 18px;
    font-size: 0.92rem;
  }
  #notes {
    padding: 20px;
  }
}

@media (max-width: 380px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .logo {
    font-size: 1.15rem;
  }
  .banner-slide h2 {
    font-size: 1.2rem;
  }
}

@media (hover: none) {
  .card:hover,
  .article-card:hover,
  .stat-item:hover {
    transform: none;
  }
  .back-to-top:hover {
    transform: none;
  }
}

@media print {
  .sticky-nav,
  .back-to-top,
  .footer,
  .banner-section,
  .anchor-nav {
    display: none;
  }
  body {
    background: #fff;
    color: #000;
  }
  .card,
  .article-card {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

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