:root {
  --primary: #6a4c9c;
  --primary-light: #8b6bb5;
  --primary-dark: #4a3270;
  --accent: #f5a623;
  --accent-light: #ffc857;
  --bg: #f8f7fc;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.72);
  --bg-glass-border: rgba(255, 255, 255, 0.5);
  --text: #2c2c3a;
  --text-secondary: #5a5a6e;
  --border: #e4e0f0;
  --shadow: 0 4px 16px rgba(106, 76, 156, 0.08);
  --shadow-lg: 0 12px 32px rgba(106, 76, 156, 0.16);
  --shadow-glow: 0 0 24px rgba(106, 76, 156, 0.25);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 64px;
  --gradient-primary: linear-gradient(135deg, #8b6bb5 0%, #6a4c9c 50%, #4a3270 100%);
  --gradient-accent: linear-gradient(135deg, #f5a623 0%, #e8951a 100%);
  --gradient-hero: linear-gradient(135deg, rgba(139, 107, 181, 0.12) 0%, rgba(106, 76, 156, 0.06) 50%, rgba(245, 166, 35, 0.08) 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.6) 0%, rgba(255, 255, 255, 0.2) 100%);
}

[data-theme="dark"] {
  --primary: #9b7fd4;
  --primary-light: #b9a3e3;
  --primary-dark: #7a5fb0;
  --accent: #ffc857;
  --accent-light: #ffd98a;
  --bg: #12121c;
  --bg-card: #1e1e2e;
  --bg-glass: rgba(30, 30, 46, 0.72);
  --bg-glass-border: rgba(155, 127, 212, 0.18);
  --text: #e8e6f0;
  --text-secondary: #a8a4b8;
  --border: #2e2e42;
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 24px rgba(155, 127, 212, 0.3);
  --gradient-primary: linear-gradient(135deg, #b9a3e3 0%, #9b7fd4 50%, #7a5fb0 100%);
  --gradient-accent: linear-gradient(135deg, #ffc857 0%, #e8951a 100%);
  --gradient-hero: linear-gradient(135deg, rgba(155, 127, 212, 0.12) 0%, rgba(122, 95, 176, 0.06) 50%, rgba(255, 200, 87, 0.08) 100%);
  --gradient-glass: linear-gradient(135deg, rgba(30, 30, 46, 0.7) 0%, rgba(30, 30, 46, 0.3) 100%);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  transition: background var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 420px;
  background: var(--gradient-hero);
  pointer-events: none;
  z-index: 0;
  opacity: 0.8;
}

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

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

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--bg-glass-border);
  box-shadow: var(--shadow);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  white-space: nowrap;
  transition: transform var(--transition);
}

.logo:hover {
  transform: scale(1.03);
}

.logo svg {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 6px rgba(106, 76, 156, 0.3));
  transition: filter var(--transition);
}

.logo:hover svg {
  filter: drop-shadow(0 4px 12px rgba(106, 76, 156, 0.5));
}

.logo-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-main {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.nav-main::-webkit-scrollbar {
  display: none;
}

.nav-main a {
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  white-space: nowrap;
  position: relative;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.nav-main a:hover {
  background: var(--gradient-primary);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(106, 76, 156, 0.3);
}

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

.search-box {
  display: flex;
  align-items: center;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 4px 4px 14px;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.search-box:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(106, 76, 156, 0.15), var(--shadow-glow);
}

.search-box input {
  border: none;
  background: transparent;
  outline: none;
  font-size: 0.85rem;
  color: var(--text);
  width: 140px;
  padding: 4px 0;
}

.search-box input::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

.search-box button {
  background: var(--gradient-primary);
  color: #fff;
  border: none;
  border-radius: 16px;
  padding: 6px 12px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
  white-space: nowrap;
}

.search-box button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(106, 76, 156, 0.4);
  filter: brightness(1.1);
}

.theme-toggle {
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--gradient-primary);
  border-color: transparent;
  transform: rotate(20deg) scale(1.08);
  box-shadow: 0 4px 16px rgba(106, 76, 156, 0.4);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  fill: var(--text);
  transition: fill var(--transition);
}

.theme-toggle:hover svg {
  fill: #fff;
}

.menu-toggle {
  display: none;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition), transform var(--transition);
}

.menu-toggle:hover {
  background: var(--gradient-primary);
  transform: scale(1.05);
}

.menu-toggle svg {
  width: 22px;
  height: 22px;
  fill: var(--text);
  transition: fill var(--transition);
}

.menu-toggle:hover svg {
  fill: #fff;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  backdrop-filter: blur(24px) saturate(180%);
  z-index: 999;
  padding: 20px;
  overflow-y: auto;
  flex-direction: column;
  gap: 8px;
  animation: menuFadeIn 0.3s ease;
}

@keyframes menuFadeIn {
  from {
    opacity: 0;
    transform: translateY(-12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 1rem;
  color: var(--text);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: background var(--transition), color var(--transition), transform var(--transition), border-color var(--transition);
}

.mobile-menu a:hover {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
  transform: translateX(6px);
}

.breadcrumb {
  padding: 16px 0 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

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

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

.breadcrumb li + li::before {
  content: "›";
  color: var(--text-secondary);
  opacity: 0.6;
}

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

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

.banner-section {
  padding: 20px 0 32px;
}

.banner-slider {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--gradient-hero);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--bg-glass-border);
  min-height: 280px;
}

.banner-slider::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(139, 107, 181, 0.18) 0%, transparent 70%);
  pointer-events: none;
}

.banner-slide {
  display: none;
  padding: 48px 40px;
  align-items: center;
  gap: 32px;
  min-height: 280px;
  position: relative;
  z-index: 1;
}

.banner-slide.active {
  display: flex;
  animation: slideIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.banner-content {
  flex: 1;
  min-width: 0;
}

.banner-content h2 {
  font-size: 1.9rem;
  margin-bottom: 12px;
  color: var(--text);
  line-height: 1.3;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.banner-content p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  max-width: 520px;
}

.banner-cta {
  display: inline-block;
  background: var(--gradient-primary);
  color: #fff;
  padding: 12px 28px;
  border-radius: 28px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
  box-shadow: 0 4px 16px rgba(106, 76, 156, 0.3);
}

.banner-cta:hover {
  color: #fff;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 28px rgba(106, 76, 156, 0.45);
  filter: brightness(1.08);
}

.banner-visual {
  flex-shrink: 0;
  width: 200px;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: floatVisual 6s ease-in-out infinite;
}

@keyframes floatVisual {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

.banner-visual svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 8px 24px rgba(106, 76, 156, 0.25));
}

.banner-dots {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
}

.banner-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: none;
  background: var(--border);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), width var(--transition);
}

.banner-dots button.active {
  background: var(--gradient-primary);
  transform: scale(1.2);
  width: 28px;
  border-radius: 6px;
}

.section {
  padding: 40px 0;
}

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

.section-header h2 {
  font-size: 1.6rem;
  margin-bottom: 8px;
  color: var(--text);
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: "";
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  border-radius: 2px;
  background: var(--gradient-accent);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 640px;
  margin: 8px auto 0;
}

.brand-intro {
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--bg-glass-border);
  position: relative;
  overflow: hidden;
}

.brand-intro::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(245, 166, 35, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.brand-intro h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--primary);
}

.brand-intro p {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.brand-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.stat-item {
  text-align: center;
  padding: 16px;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.stat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
  border-color: var(--primary-light);
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

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

.card {
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--bg-glass-border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

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

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

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

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  box-shadow: 0 4px 12px rgba(106, 76, 156, 0.3);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover .card-icon {
  transform: scale(1.1) rotate(-6deg);
  box-shadow: 0 6px 20px rgba(106, 76, 156, 0.45);
}

.card-icon svg {
  width: 24px;
  height: 24px;
  fill: #fff;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--text);
}

.card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.article-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--bg-glass-border);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.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);
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

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

.article-meta {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.article-meta span:first-child {
  color: var(--primary);
  font-weight: 600;
}

.article-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--text);
  line-height: 1.4;
  transition: color var(--transition);
}

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

.article-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  flex: 1;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-more {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition), color var(--transition);
}

.read-more:hover {
  color: var(--accent);
  gap: 8px;
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow);
  border-color: var(--primary-light);
}

.faq-item.open {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-lg);
}

.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  padding: 18px 20px;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background var(--transition), color var(--transition);
}

.faq-question:hover {
  background: var(--gradient-hero);
}

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

.faq-question .arrow {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform var(--transition);
  fill: var(--text-secondary);
}

.faq-item.open .faq-question .arrow {
  transform: rotate(180deg);
  fill: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0 20px;
}

.faq-item.open .faq-answer {
  max-height: 600px;
  padding: 0 20px 18px;
}

.faq-answer p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.howto-steps {
  max-width: 860px;
  margin: 0 auto;
  counter-reset: step;
}

.howto-step {
  position: relative;
  padding: 20px 20px 20px 68px;
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border-radius: var(--radius-sm);
  border: 1px solid var(--bg-glass-border);
  margin-bottom: 12px;
  counter-increment: step;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.howto-step:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow);
  border-color: var(--primary-light);
}

.howto-step::before {
  content: counter(step);
  position: absolute;
  left: 20px;
  top: 20px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 4px 12px rgba(106, 76, 156, 0.3);
  transition: transform var(--transition), box-shadow var(--transition);
}

.howto-step:hover::before {
  transform: scale(1.12);
  box-shadow: 0 6px 18px rgba(106, 76, 156, 0.45);
}

.howto-step h4 {
  font-size: 1rem;
  margin-bottom: 6px;
  color: var(--text);
}

.howto-step p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

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

.testimonial {
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--bg-glass-border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
}

.testimonial::before {
  content: "\201C";
  position: absolute;
  top: 8px;
  right: 20px;
  font-size: 4rem;
  line-height: 1;
  color: var(--primary);
  opacity: 0.12;
  font-family: Georgia, serif;
}

.testimonial:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}

.testimonial-stars {
  color: var(--accent);
  font-size: 1rem;
  margin-bottom: 10px;
  letter-spacing: 2px;
}

.testimonial p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
  font-style: italic;
}

.testimonial-author {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.testimonial-role {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.news-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.news-item {
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--bg-glass-border);
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

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

.news-date {
  font-size: 0.78rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 6px;
}

.news-item h4 {
  font-size: 0.98rem;
  margin-bottom: 6px;
  color: var(--text);
  transition: color var(--transition);
}

.news-item:hover h4 {
  color: var(--primary);
}

.news-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.contact-card {
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border-radius: var(--radius);
  padding: 28px 24px;
  border: 1px solid var(--bg-glass-border);
  box-shadow: var(--shadow);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

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

.contact-card svg {
  width: 36px;
  height: 36px;
  fill: var(--primary);
  margin: 0 auto 12px;
  transition: transform var(--transition), fill var(--transition);
}

.contact-card:hover svg {
  transform: scale(1.15);
  fill: var(--accent);
}

.contact-card h4 {
  font-size: 1rem;
  margin-bottom: 6px;
  color: var(--text);
}

.contact-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.contact-card a {
  font-size: 0.88rem;
}

.site-footer {
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  backdrop-filter: blur(20px) saturate(160%);
  border-top: 1px solid var(--bg-glass-border);
  padding: 40px 0 24px;
  margin-top: 40px;
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  margin-bottom: 32px;
}

.footer-col h4 {
  font-size: 0.95rem;
  margin-bottom: 14px;
  color: var(--text);
}

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

.footer-col ul a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color var(--transition), padding-left var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.footer-bottom a {
  color: var(--text-secondary);
  margin: 0 6px;
}

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

.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(106, 76, 156, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), box-shadow var(--transition);
  z-index: 900;
}

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

.back-to-top:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 8px 28px rgba(106, 76, 156, 0.55);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
  fill: #fff;
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

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

.text-center {
  text-align: center;
}

.mt-16 {
  margin-top: 16px;
}

.mt-24 {
  margin-top: 24px;
}

@media (max-width: 900px) {
  .nav-main {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .search-box {
    display: none;
  }

  .banner-slide {
    flex-direction: column;
    text-align: center;
    padding: 32px 24px;
  }

  .banner-visual {
    width: 140px;
    height: 120px;
  }

  .banner-content h2 {
    font-size: 1.4rem;
  }

  .brand-intro {
    padding: 24px 20px;
  }

  .section {
    padding: 28px 0;
  }

  .section-header h2 {
    font-size: 1.3rem;
  }

  .card-grid,
  .article-list,
  .testimonial-grid,
  .news-list,
  .contact-grid {
    gap: 16px;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 15px;
  }

  .container {
    padding: 0 14px;
  }

  .banner-content h2 {
    font-size: 1.2rem;
  }

  .banner-slider {
    min-height: 240px;
  }

  .banner-slide {
    min-height: 240px;
    padding: 24px 18px;
  }

  .stat-number {
    font-size: 1.4rem;
  }

  .brand-intro {
    padding: 20px 16px;
  }

  .card {
    padding: 22px 18px;
  }

  .article-card {
    padding: 20px 18px;
  }

  .howto-step {
    padding: 18px 16px 18px 60px;
  }

  .howto-step::before {
    left: 16px;
    top: 18px;
    width: 30px;
    height: 30px;
    font-size: 0.82rem;
  }

  .back-to-top {
    bottom: 18px;
    right: 18px;
    width: 40px;
    height: 40px;
  }
}

@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;
  }
}