:root {
  --brand-primary: #2c3e50;
  --brand-secondary: #e74c3c;
  --brand-accent: #f39c12;
  --brand-gradient: linear-gradient(135deg, #2c3e50 0%, #1a252f 100%);
  --brand-gradient-soft: linear-gradient(135deg, rgba(44,62,80,0.06) 0%, rgba(231,76,60,0.06) 100%);
  --brand-bg: #f8f9fa;
  --brand-text: #1a1a2e;
  --brand-muted: #6c757d;
  --brand-border: #dee2e6;
  --brand-card: #ffffff;
  --brand-glass: rgba(255,255,255,0.72);
  --brand-glass-border: rgba(255,255,255,0.4);
  --brand-shadow: 0 2px 12px rgba(0,0,0,0.06);
  --brand-shadow-hover: 0 12px 32px rgba(0,0,0,0.1);
  --brand-radius: 12px;
  --brand-radius-lg: 20px;
  --brand-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --brand-max-width: 1200px;
}
[data-theme="dark"] {
  --brand-bg: #0f0f1a;
  --brand-text: #e8e8f0;
  --brand-muted: #9a9ab0;
  --brand-border: #2a2a3e;
  --brand-card: #1a1a2e;
  --brand-glass: rgba(26,26,46,0.72);
  --brand-glass-border: rgba(255,255,255,0.08);
  --brand-shadow: 0 2px 12px rgba(0,0,0,0.3);
  --brand-shadow-hover: 0 12px 32px rgba(0,0,0,0.5);
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background-color: var(--brand-bg);
  color: var(--brand-text);
  line-height: 1.8;
  font-size: 16px;
  transition: background-color var(--brand-transition), color var(--brand-transition);
  overflow-x: hidden;
}
a {
  color: var(--brand-primary);
  text-decoration: none;
  transition: color var(--brand-transition);
}
a:hover {
  color: var(--brand-secondary);
}
img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}
ul, ol {
  list-style: none;
}
.container {
  max-width: var(--brand-max-width);
  margin: 0 auto;
  padding: 0 20px;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--brand-border);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  background-color: var(--brand-glass);
  transition: background-color var(--brand-transition), box-shadow var(--brand-transition);
}
.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--brand-text);
}
.logo svg {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-menu a {
  font-size: 0.95rem;
  color: var(--brand-text);
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}
.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--brand-secondary);
  transition: width var(--brand-transition);
}
.nav-menu a:hover::after {
  width: 100%;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.theme-toggle, .menu-toggle {
  background: none;
  border: 1px solid var(--brand-border);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--brand-text);
  transition: all var(--brand-transition);
}
.theme-toggle:hover, .menu-toggle:hover {
  border-color: var(--brand-primary);
  background-color: var(--brand-bg);
  transform: translateY(-1px);
}
.menu-toggle {
  display: none;
}
.search-box {
  display: flex;
  align-items: center;
  background: var(--brand-bg);
  border: 1px solid var(--brand-border);
  border-radius: 10px;
  padding: 0 12px;
  height: 40px;
  transition: border-color var(--brand-transition), box-shadow var(--brand-transition);
}
.search-box:focus-within {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(44,62,80,0.08);
}
.search-box input {
  border: none;
  background: transparent;
  outline: none;
  color: var(--brand-text);
  font-size: 0.9rem;
  width: 140px;
  font-family: inherit;
}
.search-box input::placeholder {
  color: var(--brand-muted);
}
.search-box svg {
  width: 18px;
  height: 18px;
  color: var(--brand-muted);
  flex-shrink: 0;
}
.breadcrumb {
  padding: 16px 0;
  font-size: 0.85rem;
  color: var(--brand-muted);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb li + li::before {
  content: '/';
  color: var(--brand-border);
}
.breadcrumb a {
  color: var(--brand-muted);
}
.breadcrumb a:hover {
  color: var(--brand-primary);
}
.hero {
  position: relative;
  border-radius: var(--brand-radius-lg);
  overflow: hidden;
  margin-bottom: 40px;
  background: var(--brand-gradient);
  min-height: 380px;
  display: flex;
  align-items: center;
  box-shadow: 0 20px 50px rgba(44,62,80,0.2);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(243,156,18,0.18) 0%, transparent 50%),
              radial-gradient(circle at 10% 90%, rgba(231,76,60,0.15) 0%, transparent 45%);
  pointer-events: none;
  z-index: 1;
}
.hero-slides {
  position: relative;
  width: 100%;
  min-height: 380px;
}
.hero-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  padding: 48px 56px;
  opacity: 0;
  transition: opacity 0.8s ease;
  pointer-events: none;
}
.hero-slide.active {
  opacity: 1;
  pointer-events: auto;
}
.hero-content {
  max-width: 620px;
  color: #ffffff;
  position: relative;
  z-index: 2;
}
.hero-content h1 {
  font-size: 2.2rem;
  line-height: 1.35;
  margin-bottom: 16px;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.hero-content h1 span {
  color: var(--brand-accent);
}
.hero-content p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: rgba(255,255,255,0.85);
  margin-bottom: 24px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--brand-transition);
  font-family: inherit;
  text-decoration: none;
}
.btn-primary {
  background-color: var(--brand-secondary);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(231,76,60,0.3);
}
.btn-primary:hover {
  background-color: #c0392b;
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(231,76,60,0.4);
}
.btn-outline {
  background-color: rgba(255,255,255,0.08);
  color: #ffffff;
  border: 1.5px solid rgba(255,255,255,0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.btn-outline:hover {
  border-color: #ffffff;
  background-color: rgba(255,255,255,0.18);
  color: #ffffff;
  transform: translateY(-2px);
}
.hero-dots {
  position: absolute;
  bottom: 24px;
  left: 56px;
  display: flex;
  gap: 10px;
  z-index: 5;
}
.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.35);
  border: none;
  cursor: pointer;
  transition: all var(--brand-transition);
  padding: 0;
}
.hero-dot.active {
  background-color: var(--brand-accent);
  width: 28px;
  border-radius: 6px;
}
.section {
  margin-bottom: 56px;
}
.section-header {
  margin-bottom: 32px;
}
.section-header h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--brand-text);
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}
.section-header p {
  color: var(--brand-muted);
  font-size: 1rem;
  max-width: 720px;
}
.section-header .underline {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-secondary), var(--brand-accent));
  border-radius: 2px;
  margin-top: 12px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-card {
  background: var(--brand-card);
  border: 1px solid var(--brand-border);
  border-radius: var(--brand-radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--brand-shadow);
  transition: transform var(--brand-transition), box-shadow var(--brand-transition);
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-secondary), var(--brand-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--brand-transition);
}
.stat-card:hover::before {
  transform: scaleX(1);
}
.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--brand-shadow-hover);
}
.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--brand-secondary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--brand-muted);
  margin-top: 6px;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--brand-card);
  border: 1px solid var(--brand-border);
  border-radius: var(--brand-radius);
  padding: 28px 24px;
  box-shadow: var(--brand-shadow);
  transition: transform var(--brand-transition), box-shadow var(--brand-transition), border-color var(--brand-transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}
.card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--brand-radius);
  background: var(--brand-gradient-soft);
  opacity: 0;
  transition: opacity var(--brand-transition);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--brand-shadow-hover);
  border-color: rgba(231,76,60,0.2);
}
.card:hover::after {
  opacity: 1;
}
.card > * {
  position: relative;
  z-index: 1;
}
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  flex-shrink: 0;
  transition: transform var(--brand-transition);
}
.card:hover .card-icon {
  transform: scale(1.08) rotate(-3deg);
}
.card-icon svg {
  width: 26px;
  height: 26px;
}
.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--brand-text);
}
.card p {
  font-size: 0.92rem;
  color: var(--brand-muted);
  line-height: 1.75;
  flex: 1;
}
.article-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.article-item {
  background: var(--brand-card);
  border: 1px solid var(--brand-border);
  border-radius: var(--brand-radius);
  padding: 24px;
  box-shadow: var(--brand-shadow);
  transition: transform var(--brand-transition), box-shadow var(--brand-transition), border-color var(--brand-transition);
  display: flex;
  flex-direction: column;
}
.article-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--brand-shadow-hover);
  border-color: rgba(231,76,60,0.2);
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--brand-muted);
  margin-bottom: 12px;
}
.article-tag {
  background: rgba(231,76,60,0.1);
  color: var(--brand-secondary);
  padding: 3px 10px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.78rem;
}
.article-item h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.5;
}
.article-item h3 a {
  color: var(--brand-text);
}
.article-item h3 a:hover {
  color: var(--brand-secondary);
}
.article-item p {
  font-size: 0.9rem;
  color: var(--brand-muted);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 14px;
}
.read-more {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--brand-secondary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--brand-transition), color var(--brand-transition);
}
.read-more:hover {
  color: #c0392b;
  gap: 8px;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--brand-card);
  border: 1px solid var(--brand-border);
  border-radius: var(--brand-radius);
  overflow: hidden;
  transition: box-shadow var(--brand-transition), border-color var(--brand-transition);
}
.faq-item:hover {
  box-shadow: var(--brand-shadow);
}
.faq-item.open {
  border-color: rgba(231,76,60,0.3);
  box-shadow: 0 4px 20px rgba(231,76,60,0.08);
}
.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--brand-text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: inherit;
  line-height: 1.6;
  transition: background-color var(--brand-transition);
}
.faq-question:hover {
  background-color: var(--brand-bg);
}
.faq-question .faq-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--brand-transition);
  color: var(--brand-secondary);
  font-size: 1.2rem;
  font-weight: 400;
  line-height: 1;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
  color: var(--brand-muted);
  font-size: 0.92rem;
  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: flex;
  gap: 24px;
  padding: 24px 0;
  position: relative;
  transition: transform var(--brand-transition);
}
.howto-step:hover {
  transform: translateX(4px);
}
.howto-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 23px;
  top: 68px;
  bottom: -8px;
  width: 2px;
  background: linear-gradient(180deg, var(--brand-border), transparent);
}
.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--brand-gradient);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 14px rgba(44,62,80,0.25);
  transition: transform var(--brand-transition), box-shadow var(--brand-transition);
}
.howto-step:hover .step-number {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(231,76,60,0.35);
}
.step-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--brand-text);
}
.step-content p {
  font-size: 0.92rem;
  color: var(--brand-muted);
  line-height: 1.75;
}
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--brand-card);
  border: 1px solid var(--brand-border);
  border-radius: var(--brand-radius);
  padding: 28px 24px;
  box-shadow: var(--brand-shadow);
  position: relative;
  transition: transform var(--brand-transition), box-shadow var(--brand-transition);
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--brand-shadow-hover);
}
.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 12px;
  right: 24px;
  font-size: 4rem;
  line-height: 1;
  color: rgba(231,76,60,0.12);
  font-family: Georgia, serif;
}
.testimonial-text {
  font-size: 0.92rem;
  color: var(--brand-muted);
  line-height: 1.8;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(44,62,80,0.2);
}
.testimonial-name {
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--brand-text);
}
.testimonial-role {
  font-size: 0.8rem;
  color: var(--brand-muted);
}
.site-footer {
  background: var(--brand-card);
  border-top: 1px solid var(--brand-border);
  padding: 56px 0 32px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand p {
  font-size: 0.88rem;
  color: var(--brand-muted);
  line-height: 1.8;
  margin-top: 14px;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--brand-text);
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col a {
  font-size: 0.88rem;
  color: var(--brand-muted);
  transition: color var(--brand-transition), padding-left var(--brand-transition);
}
.footer-col a:hover {
  color: var(--brand-secondary);
  padding-left: 4px;
}
.footer-contact li {
  font-size: 0.88rem;
  color: var(--brand-muted);
  display: flex;
  gap: 8px;
  align-items: flex-start;
  line-height: 1.7;
}
.footer-contact svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--brand-secondary);
}
.footer-bottom {
  border-top: 1px solid var(--brand-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--brand-muted);
}
.footer-bottom a {
  color: var(--brand-muted);
}
.footer-bottom a:hover {
  color: var(--brand-secondary);
}
.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--brand-gradient);
  color: #ffffff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--brand-transition);
  z-index: 999;
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--brand-secondary);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(231,76,60,0.4);
}
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background: var(--brand-glass);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--brand-border);
  padding: 20px;
  z-index: 999;
  flex-direction: column;
  gap: 4px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  max-height: calc(100vh - 68px);
  overflow-y: auto;
}
.mobile-menu.open {
  display: flex;
}
.mobile-menu a {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  color: var(--brand-text);
  font-weight: 500;
  transition: background-color var(--brand-transition), padding-left var(--brand-transition);
}
.mobile-menu a:hover {
  background: var(--brand-bg);
  padding-left: 22px;
}
.anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
  padding: 16px 20px;
  background: var(--brand-card);
  border: 1px solid var(--brand-border);
  border-radius: var(--brand-radius);
  box-shadow: var(--brand-shadow);
}
.anchor-nav a {
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: 8px;
  background: var(--brand-bg);
  color: var(--brand-muted);
  font-weight: 500;
  transition: all var(--brand-transition);
}
.anchor-nav a:hover {
  background: var(--brand-primary);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(44,62,80,0.25);
}
.prose {
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--brand-text);
}
.prose h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 28px 0 12px;
  color: var(--brand-text);
}
.prose h4 {
  font-size: 1.02rem;
  font-weight: 600;
  margin: 20px 0 8px;
  color: var(--brand-text);
}
.prose p {
  margin-bottom: 14px;
  color: var(--brand-muted);
}
.prose ul, .prose ol {
  margin: 12px 0 18px 20px;
  color: var(--brand-muted);
}
.prose ul li, .prose ol li {
  margin-bottom: 8px;
  list-style: disc;
}
.prose ol li {
  list-style: decimal;
}
.prose strong {
  color: var(--brand-text);
  font-weight: 600;
}
.author-box {
  display: flex;
  gap: 16px;
  padding: 20px 24px;
  background: var(--brand-gradient-soft);
  border-radius: var(--brand-radius);
  border: 1px solid var(--brand-border);
  margin: 24px 0;
  align-items: flex-start;
  transition: box-shadow var(--brand-transition);
}
.author-box:hover {
  box-shadow: var(--brand-shadow);
}
.author-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(44,62,80,0.2);
}
.author-info h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.author-info p {
  font-size: 0.85rem;
  color: var(--brand-muted);
  line-height: 1.7;
}
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav-menu { display: none; }
  .menu-toggle { display: flex; }
  .search-box { display: none; }
  .hero-content h1 { font-size: 1.6rem; }
  .hero-slide { padding: 32px 24px; }
  .hero-dots { left: 24px; }
  .card-grid { grid-template-columns: 1fr; }
  .article-list { grid-template-columns: 1fr; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .section-header h2 { font-size: 1.4rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .back-to-top { bottom: 20px; right: 20px; width: 42px; height: 42px; }
  .hero { min-height: 320px; }
  .hero-slides { min-height: 320px; }
  .howto-step:not(:last-child)::after { left: 23px; }
}
@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .hero-content h1 { font-size: 1.35rem; }
  .container { padding: 0 16px; }
  .hero-slide { padding: 24px 20px; }
  .hero-dots { left: 20px; bottom: 16px; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}
@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; }
}
@media print {
  .site-header, .mobile-menu, .back-to-top, .hero-dots, .anchor-nav { display: none; }
  body { background: #fff; color: #000; }
  .card, .article-item, .faq-item, .testimonial-card { box-shadow: none; border: 1px solid #ccc; }
}