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

:root {
  --primary: #8B4513;
  --secondary: #D2691E;
  --accent: #CD853F;
  --bg: #FFF8F0;
  --text: #2C1810;
  --light: #F5E6D3;
  --dark: #1A0F08;
  --card-bg: rgba(255, 255, 255, 0.72);
  --card-border: rgba(139, 69, 19, 0.12);
  --glass-bg: rgba(255, 248, 240, 0.65);
  --glass-border: rgba(255, 255, 255, 0.45);
  --shadow-sm: 0 2px 12px rgba(139, 69, 19, 0.08);
  --shadow-md: 0 8px 32px rgba(139, 69, 19, 0.12);
  --shadow-lg: 0 16px 48px rgba(139, 69, 19, 0.16);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --gradient-banner: linear-gradient(135deg, #8B4513 0%, #D2691E 35%, #CD853F 65%, #E8B88A 100%);
  --gradient-card: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(255, 248, 240, 0.6));
  --gradient-accent: linear-gradient(135deg, #D2691E, #CD853F);
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 10% 20%, rgba(210, 105, 30, 0.06), transparent),
    radial-gradient(ellipse 60% 50% at 90% 80%, rgba(139, 69, 19, 0.05), transparent);
  pointer-events: none;
  z-index: -1;
}

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

a:hover {
  color: var(--secondary);
}

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

ul {
  list-style: none;
}

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

/* ========== HEADER ========== */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 248, 240, 0.82);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  box-shadow: 0 1px 0 rgba(139, 69, 19, 0.08), 0 4px 24px rgba(139, 69, 19, 0.06);
  transition: background var(--transition), box-shadow var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  max-width: 1200px;
  margin: 0 auto;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.logo:hover {
  transform: scale(1.04);
  color: var(--primary);
}

.logo svg {
  width: 40px;
  height: 40px;
  transition: transform 0.6s ease;
}

.logo:hover svg {
  transform: rotate(180deg);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 24px;
  flex-wrap: wrap;
}

nav a {
  font-size: 15px;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
  transition: color var(--transition);
}

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

nav a:hover::after {
  width: 100%;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.search-box input {
  padding: 8px 14px;
  border: 1px solid rgba(205, 133, 63, 0.35);
  border-radius: 20px;
  font-size: 14px;
  width: 180px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition), width var(--transition);
  outline: none;
}

.search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(139, 69, 19, 0.12);
  width: 220px;
}

.search-box button {
  padding: 8px 16px;
  background: var(--gradient-accent);
  color: #fff;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.search-box button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(210, 105, 30, 0.35);
  filter: brightness(1.08);
}

.search-box button:active {
  transform: translateY(0);
}

.dark-toggle {
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(205, 133, 63, 0.35);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}

.dark-toggle:hover {
  transform: rotate(20deg) scale(1.1);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 2px 10px rgba(139, 69, 19, 0.15);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--primary);
  cursor: pointer;
  padding: 4px;
  transition: transform var(--transition);
}

.mobile-menu-btn:hover {
  transform: scale(1.1);
}

/* ========== BREADCRUMB ========== */
.breadcrumb {
  padding: 16px 0;
  font-size: 14px;
  color: #999;
}

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

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

/* ========== BANNER ========== */
.banner {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  margin-bottom: 40px;
  background: var(--gradient-banner);
  box-shadow: var(--shadow-md);
  min-height: 320px;
}

.banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.18), transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.12), transparent 40%);
  pointer-events: none;
}

.banner::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  pointer-events: none;
}

.banner-slide {
  display: none;
  padding: 60px 48px;
  min-height: 320px;
  position: relative;
  z-index: 1;
  align-items: center;
}

.banner-slide.active {
  display: block;
  animation: fadeSlideIn 0.7s ease forwards;
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.banner-slide h2 {
  font-size: 32px;
  color: #fff;
  margin-bottom: 16px;
  border: none;
  display: block;
  padding: 0;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
  line-height: 1.35;
}

.banner-slide p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.92);
  max-width: 700px;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.1);
}

.banner-dots {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 2;
}

.banner-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.banner-dots span.active {
  background: #fff;
  width: 28px;
  border-radius: 6px;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.banner-dots span:hover {
  background: rgba(255, 255, 255, 0.85);
}

/* ========== SECTIONS ========== */
section {
  padding: 48px 0;
}

h1 {
  font-size: 34px;
  color: var(--primary);
  margin-bottom: 20px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 26px;
  color: var(--primary);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--accent);
  display: inline-block;
  font-weight: 700;
  position: relative;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 40%;
  height: 3px;
  background: var(--gradient-accent);
  border-radius: 3px;
}

h3 {
  font-size: 20px;
  color: var(--secondary);
  margin: 24px 0 12px;
  font-weight: 600;
}

h4 {
  font-size: 17px;
  color: var(--primary);
  margin: 18px 0 10px;
  font-weight: 600;
}

p {
  margin-bottom: 14px;
  text-align: justify;
}

/* ========== STATS ========== */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 30px 0;
}

.stat-item {
  text-align: center;
  padding: 28px 20px;
  background: var(--card-bg);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.stat-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(139, 69, 19, 0.25);
}

.stat-item:hover::before {
  transform: scaleX(1);
}

.stat-number {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 14px;
  color: #999;
  margin-top: 6px;
}

/* ========== GRIDS ========== */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

/* ========== CARDS ========== */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
}

.card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(210, 105, 30, 0.06), transparent 70%);
  border-radius: 50%;
  transform: translate(30%, -30%);
  transition: transform var(--transition), opacity var(--transition);
  opacity: 0;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(139, 69, 19, 0.22);
}

.card:hover::after {
  transform: translate(20%, -20%);
  opacity: 1;
}

.card h3 {
  margin-top: 0;
  font-size: 19px;
  transition: color var(--transition);
}

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

.card svg {
  width: 48px;
  height: 48px;
  margin-bottom: 14px;
  transition: transform var(--transition);
}

.card:hover svg {
  transform: scale(1.12) rotate(-5deg);
}

/* ========== ARTICLE CARDS ========== */
.article-card {
  background: var(--card-bg);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 20px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
}

.article-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 3px;
  background: var(--gradient-accent);
  border-radius: 3px;
  opacity: 0;
  transition: opacity var(--transition);
}

.article-card:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(139, 69, 19, 0.2);
}

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

.article-card h3 {
  margin-top: 0;
  font-size: 20px;
  transition: color var(--transition);
}

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

.article-meta {
  font-size: 13px;
  color: #999;
  margin-bottom: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
}

.article-card .read-more {
  display: inline-block;
  margin-top: 12px;
  font-weight: 600;
  color: var(--secondary);
  position: relative;
  transition: color var(--transition), transform var(--transition);
}

.article-card .read-more:hover {
  color: var(--primary);
  transform: translateX(4px);
}

/* ========== FAQ ========== */
.faq-item {
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--card-bg);
  backdrop-filter: blur(12px) saturate(1.2);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(139, 69, 19, 0.2);
}

.faq-question {
  padding: 18px 22px;
  cursor: pointer;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(245, 230, 211, 0.6);
  transition: background var(--transition), color var(--transition);
  user-select: none;
  gap: 12px;
}

.faq-question::after {
  content: '+';
  font-size: 20px;
  font-weight: 400;
  color: var(--accent);
  transition: transform var(--transition), color var(--transition);
  flex-shrink: 0;
}

.faq-item.open .faq-question::after {
  content: '−';
  transform: rotate(180deg);
  color: #fff;
}

.faq-answer {
  padding: 0 22px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94), padding 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.faq-item.open .faq-answer {
  max-height: 800px;
  padding: 18px 22px;
}

.faq-item.open .faq-question {
  background: var(--gradient-accent);
  color: #fff;
}

/* ========== HOWTO STEPS ========== */
.howto-step {
  display: flex;
  gap: 18px;
  margin-bottom: 20px;
  padding: 24px;
  background: var(--card-bg);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.howto-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(139, 69, 19, 0.22);
}

.step-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  box-shadow: 0 4px 14px rgba(210, 105, 30, 0.3);
  transition: transform var(--transition), box-shadow var(--transition);
}

.howto-step:hover .step-num {
  transform: scale(1.1) rotate(-8deg);
  box-shadow: 0 6px 20px rgba(210, 105, 30, 0.4);
}

.howto-step h4 {
  margin-top: 0;
  margin-bottom: 6px;
}

.howto-step p {
  margin-bottom: 0;
}

/* ========== TESTIMONIAL ========== */
.testimonial {
  background: linear-gradient(135deg, rgba(245, 230, 211, 0.8), rgba(255, 248, 240, 0.9));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(205, 133, 63, 0.2);
  border-radius: var(--radius-md);
  padding: 28px 28px 24px;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.testimonial::before {
  content: '"';
  font-size: 64px;
  color: var(--accent);
  position: absolute;
  top: 4px;
  left: 18px;
  opacity: 0.35;
  font-family: Georgia, serif;
  line-height: 1;
  pointer-events: none;
}

.testimonial p {
  font-style: italic;
  position: relative;
  z-index: 1;
  color: var(--text);
}

.testimonial .author {
  font-weight: 600;
  color: var(--primary);
  margin-top: 14px;
  font-style: normal;
  font-size: 14px;
}

/* ========== CONTACT ========== */
.contact-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 20px;
  background: var(--card-bg);
  backdrop-filter: blur(12px) saturate(1.2);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.contact-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(139, 69, 19, 0.22);
}

.contact-item svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  margin-top: 4px;
  transition: transform var(--transition);
}

.contact-item:hover svg {
  transform: scale(1.15);
}

.contact-item h4 {
  margin: 0 0 6px;
  font-size: 16px;
}

.contact-item p {
  margin-bottom: 0;
  font-size: 14px;
  color: #777;
}

/* ========== SITEMAP ========== */
.sitemap-list {
  columns: 2;
  column-gap: 32px;
  list-style: none;
}

.sitemap-list li {
  margin-bottom: 10px;
  break-inside: avoid;
  padding: 6px 0;
  transition: transform var(--transition);
}

.sitemap-list li:hover {
  transform: translateX(4px);
}

.sitemap-list a {
  font-weight: 500;
  position: relative;
  transition: color var(--transition);
}

.sitemap-list a::before {
  content: '→';
  margin-right: 6px;
  color: var(--accent);
  opacity: 0;
  transition: opacity var(--transition), margin var(--transition);
  display: inline-block;
}

.sitemap-list li:hover a::before {
  opacity: 1;
  margin-right: 8px;
}

/* ========== FOOTER ========== */
footer {
  background: var(--dark);
  color: #bbb;
  padding: 56px 0 28px;
  margin-top: 48px;
  position: relative;
  overflow: hidden;
}

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

footer::after {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(210, 105, 30, 0.08), transparent 70%);
  pointer-events: none;
}

footer a {
  color: var(--accent);
  transition: color var(--transition), opacity var(--transition);
}

footer a:hover {
  color: #fff;
}

footer h4 {
  color: #fff;
  margin-bottom: 14px;
  font-size: 16px;
  position: relative;
  padding-bottom: 8px;
}

footer h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

footer ul {
  list-style: none;
}

footer ul li {
  margin-bottom: 8px;
}

footer p {
  font-size: 14px;
  line-height: 1.9;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 36px;
  position: relative;
  z-index: 1;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 22px;
  text-align: center;
  font-size: 13px;
  color: #888;
  position: relative;
  z-index: 1;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 14px;
}

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

/* ========== BACK TO TOP ========== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-accent);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 20px;
  display: none;
  z-index: 999;
  box-shadow: 0 4px 18px rgba(210, 105, 30, 0.4);
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
  align-items: center;
  justify-content: center;
}

.back-to-top.show {
  display: flex;
  animation: popIn 0.35s ease;
}

@keyframes popIn {
  from {
    opacity: 0;
    transform: scale(0.5);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.back-to-top:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 8px 26px rgba(210, 105, 30, 0.5);
}

.back-to-top:active {
  transform: translateY(-2px) scale(1.02);
}

/* ========== REVEAL ANIMATION ========== */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: opacity, transform;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========== DARK MODE ========== */
body.dark {
  --primary: #E8B88A;
  --secondary: #D2691E;
  --accent: #CD853F;
  --bg: #1A0F08;
  --text: #E8D5C0;
  --light: #2C1810;
  --dark: #0D0704;
  --card-bg: rgba(44, 24, 16, 0.72);
  --card-border: rgba(210, 105, 30, 0.15);
  --glass-bg: rgba(26, 15, 8, 0.65);
  --glass-border: rgba(210, 105, 30, 0.12);
  --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
}

body.dark::before {
  background:
    radial-gradient(ellipse 80% 60% at 10% 20%, rgba(210, 105, 30, 0.05), transparent),
    radial-gradient(ellipse 60% 50% at 90% 80%, rgba(139, 69, 19, 0.04), transparent);
}

body.dark header {
  background: rgba(26, 15, 8, 0.85);
  box-shadow: 0 1px 0 rgba(210, 105, 30, 0.08), 0 4px 24px rgba(0, 0, 0, 0.3);
}

body.dark .search-box input {
  background: rgba(44, 24, 16, 0.7);
  color: #E8D5C0;
  border-color: rgba(210, 105, 30, 0.25);
}

body.dark .search-box input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(232, 184, 138, 0.12);
}

body.dark .search-box input::placeholder {
  color: #8a7a6a;
}

body.dark .dark-toggle {
  background: rgba(44, 24, 16, 0.7);
  border-color: rgba(210, 105, 30, 0.3);
}

body.dark .dark-toggle:hover {
  background: rgba(61, 37, 24, 0.9);
}

body.dark .card,
body.dark .article-card,
body.dark .stat-item,
body.dark .faq-item,
body.dark .howto-step,
body.dark .contact-item {
  background: var(--card-bg);
}

body.dark .faq-question {
  background: rgba(61, 37, 24, 0.6);
}

body.dark .faq-item.open .faq-question {
  background: var(--gradient-accent);
}

body.dark .testimonial {
  background: linear-gradient(135deg, rgba(44, 24, 16, 0.8), rgba(26, 15, 8, 0.9));
  border-color: rgba(210, 105, 30, 0.15);
}

body.dark .contact-item p {
  color: #9a8a7a;
}

body.dark .stat-label {
  color: #9a8a7a;
}

body.dark .article-meta {
  color: #8a7a6a;
}

body.dark .breadcrumb {
  color: #8a7a6a;
}

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

body.dark h3 {
  color: var(--secondary);
}

body.dark .banner {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
  nav ul {
    gap: 18px;
  }
  .search-box input {
    width: 150px;
  }
  .search-box input:focus {
    width: 180px;
  }
}

@media (max-width: 768px) {
  body {
    font-size: 15px;
  }

  nav ul {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(1.4);
    -webkit-backdrop-filter: blur(20px) saturate(1.4);
    padding: 16px 20px;
    box-shadow: 0 8px 32px rgba(139, 69, 19, 0.12);
    gap: 4px;
    border-bottom: 1px solid var(--card-border);
  }

  nav ul.open {
    display: flex;
    animation: slideDown 0.3s ease;
  }

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

  nav a {
    display: block;
    padding: 10px 0;
    border-bottom: 1px solid rgba(139, 69, 19, 0.06);
  }

  nav a::after {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .search-box {
    display: none;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .contact-info {
    grid-template-columns: 1fr;
  }

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

  .sitemap-list {
    columns: 1;
  }

  h1 {
    font-size: 26px;
  }

  h2 {
    font-size: 22px;
  }

  .banner-slide {
    padding: 40px 24px;
    min-height: 280px;
  }

  .banner-slide h2 {
    font-size: 23px;
  }

  .banner-slide p {
    font-size: 15px;
  }

  .banner {
    min-height: 280px;
    border-radius: var(--radius-lg);
  }

  .card {
    padding: 22px;
  }

  .article-card {
    padding: 22px;
  }

  .howto-step {
    padding: 18px;
    gap: 14px;
  }

  .step-num {
    width: 38px;
    height: 38px;
    font-size: 16px;
  }

  .stat-number {
    font-size: 28px;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 42px;
    height: 42px;
    font-size: 18px;
  }

  section {
    padding: 36px 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 14px;
  }

  .header-inner {
    padding: 10px 14px;
  }

  .logo {
    font-size: 19px;
  }

  .logo svg {
    width: 34px;
    height: 34px;
  }

  h1 {
    font-size: 22px;
  }

  h2 {
    font-size: 19px;
  }

  h3 {
    font-size: 17px;
  }

  .banner-slide {
    padding: 32px 18px;
  }

  .banner-slide h2 {
    font-size: 20px;
  }

  .banner-slide p {
    font-size: 14px;
  }

  .stats {
    gap: 10px;
  }

  .stat-item {
    padding: 18px 12px;
  }

  .stat-number {
    font-size: 24px;
  }

  .stat-label {
    font-size: 12px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .card {
    padding: 18px;
  }

  .article-card {
    padding: 18px;
  }

  .faq-question {
    padding: 14px 16px;
    font-size: 14px;
  }

  .faq-answer {
    padding: 0 16px;
  }

  .faq-item.open .faq-answer {
    padding: 14px 16px;
  }

  .howto-step {
    padding: 16px;
  }

  .testimonial {
    padding: 22px 18px 18px;
  }

  .contact-item {
    padding: 16px;
  }

  .banner-dots span {
    width: 8px;
    height: 8px;
  }

  .banner-dots span.active {
    width: 22px;
  }
}

/* ========== ACCESSIBILITY & PRINT ========== */
@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;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

::selection {
  background: rgba(210, 105, 30, 0.25);
  color: var(--text);
}

body.dark ::selection {
  background: rgba(232, 184, 138, 0.3);
}

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

/* Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent), var(--secondary));
  border-radius: 6px;
  border: 2px solid var(--bg);
}

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

body.dark ::-webkit-scrollbar-track {
  background: var(--bg);
}

body.dark ::-webkit-scrollbar-thumb {
  border-color: var(--bg);
}
```