:root {
  --bg: #f7f4ef;
  --bg-alt: #efe9e1;
  --surface: #ffffff;
  --surface-alt: #f5f0e9;
  --surface-glass: rgba(255, 255, 255, 0.72);
  --text: #2b2b2b;
  --text-secondary: #5a5a5a;
  --text-light: #8a8a8a;
  --accent: #8b5e3c;
  --accent-light: #c49a6c;
  --accent-dark: #6b4429;
  --accent-soft: rgba(139, 94, 60, 0.1);
  --border: #e5ddd3;
  --border-light: #efe8df;
  --shadow-sm: 0 1px 4px rgba(43, 43, 43, 0.04);
  --shadow: 0 2px 16px rgba(43, 43, 43, 0.06);
  --shadow-lg: 0 8px 32px rgba(43, 43, 43, 0.1);
  --shadow-xl: 0 16px 48px rgba(43, 43, 43, 0.14);
  --radius: 14px;
  --radius-sm: 9px;
  --radius-xs: 6px;
  --radius-full: 999px;
  --max-width: 1200px;
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", Georgia, serif;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --glass-blur: blur(18px) saturate(1.4);
}

body.dark {
  --bg: #161616;
  --bg-alt: #1e1e1e;
  --surface: #242424;
  --surface-alt: #2e2e2e;
  --surface-glass: rgba(36, 36, 36, 0.78);
  --text: #e8e4de;
  --text-secondary: #b8b4ae;
  --text-light: #888480;
  --accent: #c49a6c;
  --accent-light: #dbb88a;
  --accent-dark: #a87d52;
  --accent-soft: rgba(196, 154, 108, 0.12);
  --border: #363636;
  --border-light: #2e2e2e;
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.2);
  --shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.5);
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
  transition: background 0.35s ease, color 0.35s ease;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  font-size: inherit;
  color: inherit;
}

input {
  font-family: inherit;
  font-size: inherit;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.top-notice {
  background: linear-gradient(90deg, var(--accent-dark), var(--accent), var(--accent-dark));
  color: #f5e6d3;
  text-align: center;
  padding: 9px 16px;
  font-size: 13px;
  letter-spacing: 0.5px;
  position: relative;
  z-index: 1001;
}

.top-notice a {
  color: #f5e6d3;
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
}

.top-notice a:hover {
  color: #ffffff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--surface-glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border);
  transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.site-header.scrolled {
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 1px;
  flex-shrink: 0;
}

.logo svg {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 9px;
  transition: transform var(--transition);
}

.logo:hover svg {
  transform: rotate(-6deg) scale(1.05);
}

.logo span {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.main-nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text-secondary);
  transition: all var(--transition);
  white-space: nowrap;
  font-weight: 500;
  position: relative;
}

.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width var(--transition), left var(--transition);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 60%;
  left: 20%;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--accent);
  background: var(--accent-soft);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.search-btn,
.theme-btn,
.menu-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all var(--transition);
  background: transparent;
}

.search-btn:hover,
.theme-btn:hover,
.menu-btn:hover {
  background: var(--accent-soft);
  color: var(--accent);
  transform: scale(1.08);
}

.search-btn:active,
.theme-btn:active,
.menu-btn:active {
  transform: scale(0.94);
}

.menu-btn {
  display: none;
}

.search-bar {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--surface-glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  box-shadow: var(--shadow);
  animation: slideDown 0.3s ease;
}

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

.search-bar.active {
  display: block;
}

.search-bar form {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  gap: 8px;
}

.search-bar input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.search-bar input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-bar button {
  padding: 12px 24px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #ffffff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: all var(--transition);
}

.search-bar button:hover {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(139, 94, 60, 0.3);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  z-index: 2000;
  padding: 80px 24px 24px;
  overflow-y: auto;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.mobile-nav.active {
  display: block;
}

.mobile-nav-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 24px;
  transition: all var(--transition);
}

.mobile-nav-close:hover {
  background: var(--accent-soft);
  color: var(--accent);
  transform: rotate(90deg);
}

.mobile-nav a {
  display: block;
  padding: 16px 0;
  font-size: 18px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  font-weight: 500;
  transition: all var(--transition);
}

.mobile-nav a:hover {
  color: var(--accent);
  padding-left: 12px;
}

.breadcrumb {
  padding: 16px 0;
  font-size: 13px;
  color: var(--text-light);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

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

.breadcrumb li::after {
  content: "/";
  color: var(--border);
}

.breadcrumb li:last-child::after {
  display: none;
}

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

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

.breadcrumb [aria-current="page"] {
  color: var(--text-secondary);
}

.hero {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 48px;
  background: var(--surface);
  box-shadow: var(--shadow-lg);
}

.hero-slides {
  position: relative;
  aspect-ratio: 21 / 9;
  min-height: 280px;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.8s ease;
  display: flex;
  align-items: center;
  padding: 48px 56px;
  pointer-events: none;
}

.hero-slide.active {
  opacity: 1;
  z-index: 1;
  pointer-events: auto;
}

.hero-slide-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
}

.hero-slide-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.15) 60%, transparent 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
}

.hero-tag {
  display: inline-block;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 16px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #f5e6d3;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.25;
  margin-bottom: 16px;
  color: #ffffff;
  font-weight: 700;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 24px;
  line-height: 1.8;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.25);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #ffffff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(139, 94, 60, 0.35);
}

.hero-cta:hover {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(139, 94, 60, 0.45);
}

.hero-cta svg {
  transition: transform var(--transition);
}

.hero-cta:hover svg {
  transform: translateX(4px);
}

.hero-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 3;
}

.hero-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.45);
  transition: all var(--transition);
  padding: 0;
}

.hero-dot:hover {
  background: rgba(255, 255, 255, 0.75);
}

.hero-dot.active {
  width: 26px;
  border-radius: 4px;
  background: var(--accent-light);
}

.intro-section {
  margin-bottom: 56px;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.intro-text h2 {
  font-family: var(--font-serif);
  font-size: clamp(22px, 3vw, 32px);
  margin-bottom: 16px;
  line-height: 1.35;
  font-weight: 700;
}

.intro-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 15px;
  line-height: 1.85;
}

.intro-text .highlight {
  color: var(--accent);
  font-weight: 600;
}

.intro-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-light);
}

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

.stat-number {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.stat-label {
  font-size: 13px;
  color: var(--text-light);
  margin-top: 4px;
}

.section {
  margin-bottom: 64px;
}

.section-header {
  margin-bottom: 32px;
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 8px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 640px;
}

.section-header .accent-line {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  border-radius: 2px;
  margin-bottom: 16px;
}

.brand-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: start;
}

.brand-content h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  margin-bottom: 12px;
  font-weight: 700;
}

.brand-content p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.85;
  margin-bottom: 16px;
}

.brand-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}

.value-item {
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 16px;
  border: 1px solid var(--border);
  transition: border-color var(--transition), transform var(--transition);
}

.value-item:hover {
  border-color: var(--accent-light);
  transform: translateY(-2px);
}

.value-item strong {
  display: block;
  font-size: 14px;
  color: var(--accent);
  margin-bottom: 4px;
}

.value-item span {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle at top right, var(--accent-soft), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-light);
}

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

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--surface-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--accent);
  transition: background var(--transition), transform var(--transition);
}

.card:hover .card-icon {
  background: var(--accent-soft);
  transform: scale(1.06);
}

.card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  font-family: var(--font-serif);
}

.card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
}

.card .card-tag {
  display: inline-block;
  margin-top: 12px;
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
  padding: 3px 10px;
  background: var(--accent-soft);
  border-radius: var(--radius-full);
}

.solution-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.solution-item {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px 28px;
  border: 1px solid var(--border);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  align-items: start;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.solution-item:hover {
  border-color: var(--accent-light);
  box-shadow: var(--shadow);
  transform: translateX(4px);
}

.solution-num {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1;
  min-width: 44px;
  transition: color var(--transition);
}

.solution-item:hover .solution-num {
  color: var(--accent);
}

.solution-body h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.solution-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

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

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-light);
}

.article-thumb {
  aspect-ratio: 16 / 9;
  background: var(--surface-alt);
  position: relative;
  overflow: hidden;
}

.article-thumb svg {
  width: 100%;
  height: 100%;
  transition: transform var(--transition-slow);
}

.article-card:hover .article-thumb svg {
  transform: scale(1.05);
}

.article-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-meta {
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--text-light);
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.article-body h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.45;
  font-family: var(--font-serif);
  transition: color var(--transition);
}

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

.article-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.article-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  transition: gap var(--transition), color var(--transition);
}

.article-link:hover {
  gap: 8px;
  color: var(--accent-dark);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

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

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

.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: background var(--transition);
  font-family: var(--font-serif);
}

.faq-question:hover {
  background: var(--surface-alt);
}

.faq-question .faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  transition: transform var(--transition);
  font-size: 18px;
  font-weight: 400;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-item.open .faq-question {
  background: var(--surface-alt);
  color: var(--accent);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 0 24px 20px;
}

.howto-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.howto-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  padding: 24px 0;
  position: relative;
}

.howto-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 23px;
  top: 72px;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.howto-step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--accent);
  font-size: 18px;
  position: relative;
  z-index: 1;
  transition: all var(--transition);
}

.howto-step:hover .howto-step-num {
  background: var(--accent);
  color: #ffffff;
  transform: scale(1.08);
  box-shadow: 0 4px 16px rgba(139, 94, 60, 0.3);
}

.howto-step-body h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  font-family: var(--font-serif);
}

.howto-step-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.contact-info {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.contact-info h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  margin-bottom: 20px;
  font-weight: 700;
}

.contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  align-items: flex-start;
}

.contact-item svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--accent);
}

.contact-item strong {
  display: block;
  font-size: 14px;
  margin-bottom: 2px;
}

.contact-item span {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.eeat-box {
  background: linear-gradient(135deg, var(--surface-alt), var(--surface));
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.eeat-box::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, var(--accent-soft), transparent 70%);
  pointer-events: none;
}

.eeat-box h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  margin-bottom: 16px;
  font-weight: 700;
}

.eeat-box p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.eeat-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.eeat-tag {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all var(--transition);
}

.eeat-tag:hover {
  border-color: var(--accent-light);
  color: var(--accent);
  transform: translateY(-2px);
}

.site-footer {
  background: var(--surface-alt);
  border-top: 1px solid var(--border);
  padding: 48px 0 24px;
  margin-top: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.8;
  margin-top: 12px;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  font-family: var(--font-serif);
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  padding: 4px 0;
  transition: color var(--transition), padding-left var(--transition);
}

.footer-col a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--text-light);
}

.footer-bottom a {
  color: var(--text-light);
}

.footer-bottom a:hover {
  color: var(--accent);
}

.back-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
  z-index: 900;
}

.back-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-top:hover {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.back-top:active {
  transform: translateY(-2px) scale(0.96);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

::selection {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

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

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

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

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

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

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

  .hero-slide {
    padding: 40px 40px;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
  }

  .menu-btn {
    display: flex;
  }

  .hero-slide {
    padding: 28px 24px;
  }

  .hero-slides {
    aspect-ratio: 16 / 9;
    min-height: 240px;
  }

  .hero h1 {
    font-size: clamp(22px, 6vw, 30px);
  }

  .hero p {
    font-size: 14px;
  }

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

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

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

  .brand-values {
    grid-template-columns: 1fr;
  }

  .intro-stats {
    grid-template-columns: 1fr 1fr;
  }

  .solution-item {
    grid-template-columns: 1fr;
  }

  .solution-num {
    font-size: 20px;
    min-width: auto;
  }

  .howto-step {
    grid-template-columns: 40px 1fr;
    gap: 16px;
  }

  .howto-step-num {
    width: 40px;
    height: 40px;
    font-size: 15px;
  }

  .howto-step:not(:last-child)::after {
    left: 19px;
    top: 64px;
  }

  .section {
    margin-bottom: 48px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .hero h1 {
    font-size: 22px;
  }

  .hero p {
    font-size: 13px;
    margin-bottom: 16px;
  }

  .hero-cta {
    padding: 10px 20px;
    font-size: 14px;
  }

  .stat-number {
    font-size: 26px;
  }

  .intro-stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

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

  .card {
    padding: 22px;
  }

  .contact-info,
  .eeat-box {
    padding: 24px;
  }

  .back-top {
    bottom: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
  }

  .top-notice {
    font-size: 12px;
    padding: 7px 12px;
  }
}

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

  html {
    scroll-behavior: auto;
  }

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

@media print {
  .site-header,
  .top-notice,
  .back-top,
  .mobile-nav,
  .hero-dots,
  .search-bar {
    display: none !important;
  }

  body {
    background: #ffffff;
    color: #000000;
  }

  .card,
  .article-card,
  .stat-card,
  .solution-item,
  .faq-list {
    box-shadow: none;
    border: 1px solid #cccccc;
  }
}