:root {
  --bg: #ffffff;
  --bg-soft: #fdf2f5;
  --bg-card: #ffffff;
  --bg-nav: rgba(255, 255, 255, 0.72);
  --bg-footer: #1f2937;
  --text-primary: #17202a;
  --text-secondary: #243447;
  --text-muted: #4b5563;
  --text-inverse: #ffffff;
  --text-footer: #e5e7eb;
  --text-footer-muted: #9ca3af;
  --brand: #e05a7a;
  --brand-dark: #b83b5a;
  --brand-soft: #fce7ee;
  --brand-glow: rgba(224, 90, 122, 0.28);
  --border: #e5e7eb;
  --border-soft: rgba(229, 231, 235, 0.6);
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 18px 40px -18px rgba(224, 90, 122, 0.35);
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 255, 255, 0.65);
  --gradient-banner: linear-gradient(135deg, #fce7ee 0%, #fdf2f5 45%, #f8b4c4 100%);
  --gradient-brand: linear-gradient(135deg, #e05a7a 0%, #f8b4c4 100%);
  --radius: 16px;
  --radius-sm: 12px;
  --radius-lg: 24px;
  --transition: 0.3s ease;
  --transition-slow: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

html.dark {
  --bg: #0f172a;
  --bg-soft: #1e293b;
  --bg-card: #1e293b;
  --bg-nav: rgba(17, 24, 39, 0.72);
  --bg-footer: #0b1120;
  --text-primary: #f1f5f9;
  --text-secondary: #e2e8f0;
  --text-muted: #cbd5e1;
  --text-inverse: #0f172a;
  --text-footer: #e2e8f0;
  --text-footer-muted: #94a3b8;
  --brand: #f472b6;
  --brand-dark: #f9a8d4;
  --brand-soft: #3b1f2b;
  --brand-glow: rgba(244, 114, 182, 0.3);
  --border: #334155;
  --border-soft: rgba(51, 65, 85, 0.6);
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 18px 40px -18px rgba(244, 114, 182, 0.4);
  --glass-bg: rgba(30, 41, 59, 0.55);
  --glass-border: rgba(148, 163, 184, 0.25);
  --gradient-banner: linear-gradient(135deg, #2d1b2e 0%, #1e293b 55%, #3b1f2b 100%);
  --gradient-brand: linear-gradient(135deg, #f472b6 0%, #f9a8d4 100%);
}

* {
  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", sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.8;
  font-size: 16px;
  overflow-x: hidden;
  transition: background var(--transition), color var(--transition);
}

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

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

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

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

.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-nav);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--border-soft);
  transition: background var(--transition), border-color var(--transition);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: transform var(--transition);
}

.nav-logo:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.nav-logo svg {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 4px 10px var(--brand-glow));
  transition: transform var(--transition-slow);
}

.nav-logo:hover svg {
  transform: rotate(-8deg) scale(1.08);
}

.nav-links {
  display: flex;
  gap: 22px;
  list-style: none;
  align-items: center;
}

.nav-links a {
  position: relative;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  padding: 6px 0;
  transition: color var(--transition);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--gradient-brand);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition);
}

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

.nav-links a:hover::after {
  transform: scaleX(1);
}

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

.nav-search {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 6px 14px;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.nav-search:focus-within {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px var(--brand-glow);
}

.nav-search input {
  border: none;
  background: transparent;
  outline: none;
  color: var(--text-primary);
  font-size: 14px;
  width: 140px;
  font-family: inherit;
}

.nav-search input::placeholder {
  color: var(--text-muted);
}

.nav-search button {
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 14px;
  padding: 0;
  transition: transform var(--transition);
}

.nav-search button:hover {
  transform: scale(1.15);
}

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.theme-toggle:hover {
  background: var(--brand-soft);
  color: var(--brand-dark);
  transform: rotate(20deg) scale(1.08);
  box-shadow: 0 0 0 4px var(--brand-glow);
}

.menu-toggle {
  display: none;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
  transition: color var(--transition);
}

.menu-toggle:hover {
  color: var(--brand-dark);
}

.breadcrumb {
  padding: 14px 0;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-soft);
}

.breadcrumb a {
  color: var(--brand-dark);
}

.breadcrumb span {
  color: var(--text-muted);
  margin: 0 6px;
}

.banner {
  position: relative;
  overflow: hidden;
  background: var(--gradient-banner);
  border-radius: var(--radius-lg);
  margin: 24px 0;
  min-height: 280px;
  box-shadow: var(--shadow-lg);
  transition: background var(--transition);
}

.banner::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.55) 0%, rgba(255, 255, 255, 0) 70%);
  pointer-events: none;
}

.banner::after {
  content: "";
  position: absolute;
  bottom: -60%;
  left: -10%;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(248, 180, 196, 0.45) 0%, rgba(248, 180, 196, 0) 70%);
  pointer-events: none;
}

.banner-slide {
  display: none;
  padding: 48px 40px;
  min-height: 280px;
  align-items: center;
  gap: 32px;
  position: relative;
  z-index: 1;
  animation: bannerFade 0.6s ease;
}

.banner-slide.active {
  display: flex;
  flex-wrap: wrap;
}

@keyframes bannerFade {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.banner-text {
  flex: 1 1 320px;
}

.banner-text h1 {
  font-size: 32px;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 12px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.banner-text p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  max-width: 560px;
}

.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 24px;
  background: var(--gradient-brand);
  color: #ffffff;
  font-weight: 700;
  border: none;
  cursor: pointer;
  font-size: 15px;
  font-family: inherit;
  box-shadow: 0 8px 20px -8px var(--brand-glow);
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 28px -10px var(--brand-glow);
  filter: brightness(1.05);
  text-decoration: none;
  color: #ffffff;
}

.banner-visual {
  flex: 1 1 260px;
  display: flex;
  justify-content: center;
}

.banner-visual svg {
  filter: drop-shadow(0 16px 32px rgba(224, 90, 122, 0.25));
  animation: floaty 5s ease-in-out infinite;
}

@keyframes floaty {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.banner-dots {
  display: flex;
  gap: 8px;
  justify-content: center;
  padding-bottom: 16px;
  position: relative;
  z-index: 1;
}

.banner-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-muted);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), width var(--transition);
}

.banner-dots span:hover {
  transform: scale(1.2);
}

.banner-dots span.active {
  background: var(--brand-dark);
  width: 26px;
  border-radius: 6px;
}

section {
  padding: 48px 0;
}

.section-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.3;
  letter-spacing: -0.4px;
  position: relative;
  padding-left: 16px;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 5px;
  border-radius: 4px;
  background: var(--gradient-brand);
}

.section-sub {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 32px;
  padding-left: 16px;
}

h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-secondary);
  margin: 24px 0 12px;
}

h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-secondary);
  margin: 18px 0 8px;
}

p {
  margin-bottom: 14px;
  color: var(--text-primary);
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  position: relative;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition);
}

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

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

.card h3 {
  margin-top: 0;
  font-size: 18px;
  color: var(--text-primary);
  transition: color var(--transition);
}

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

.card p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 0;
}

.card-icon {
  margin-bottom: 14px;
  transition: transform var(--transition-slow);
}

.card-icon svg {
  filter: drop-shadow(0 6px 14px var(--brand-glow));
}

.card:hover .card-icon {
  transform: scale(1.08) rotate(-4deg);
}

.article-item {
  position: relative;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-left: 4px solid var(--brand);
  border-radius: var(--radius-sm);
  padding: 22px 24px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.article-item:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-lg);
  border-left-color: var(--brand-dark);
}

.article-item h3 {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--text-primary);
}

.article-item h3 a {
  color: var(--text-primary);
  transition: color var(--transition);
}

.article-item h3 a:hover {
  color: var(--brand-dark);
}

.article-meta {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.article-item p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.article-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-dark);
  transition: letter-spacing var(--transition), color var(--transition);
}

.article-more:hover {
  letter-spacing: 0.5px;
  text-decoration: none;
}

.faq-item {
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  backdrop-filter: blur(12px) saturate(160%);
  box-shadow: var(--shadow);
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

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

.faq-q {
  width: 100%;
  text-align: left;
  padding: 18px 22px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: inherit;
  transition: background var(--transition), color var(--transition);
}

.faq-q:hover {
  background: var(--bg-soft);
  color: var(--brand-dark);
}

.faq-q .arrow {
  transition: transform var(--transition);
  color: var(--brand-dark);
  font-size: 18px;
  flex-shrink: 0;
}

.faq-q.open .arrow {
  transform: rotate(180deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
  padding: 0 22px;
  color: var(--text-secondary);
  font-size: 15px;
}

.faq-a.open {
  max-height: 600px;
  padding: 0 22px 20px;
}

.step {
  display: flex;
  gap: 18px;
  margin-bottom: 22px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow);
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.step:hover {
  transform: translateY(-4px);
  border-color: var(--brand);
  box-shadow: var(--shadow-lg);
}

.step-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #ffffff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  box-shadow: 0 6px 16px -6px var(--brand-glow);
  transition: transform var(--transition);
}

.step:hover .step-num {
  transform: scale(1.1) rotate(-6deg);
}

.step-body h3 {
  margin: 0 0 6px;
  font-size: 17px;
  color: var(--text-primary);
}

.step-body p {
  margin: 0;
  font-size: 15px;
  color: var(--text-secondary);
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px;
}

.stat {
  text-align: center;
  padding: 28px 16px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.stat:hover {
  transform: translateY(-5px);
  border-color: var(--brand);
  box-shadow: var(--shadow-lg);
}

.stat-num {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.2;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--brand-dark);
}

.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 6px;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 20px 0;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: border-color var(--transition);
}

th,
td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-soft);
}

th {
  background: var(--bg-soft);
  color: var(--text-primary);
  font-weight: 700;
}

td {
  color: var(--text-secondary);
}

tbody tr {
  transition: background var(--transition);
}

tbody tr:hover {
  background: var(--bg-soft);
}

tbody tr:last-child td {
  border-bottom: none;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.contact-item {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: background var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

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

.contact-item h4 {
  margin: 0 0 6px;
  color: var(--text-primary);
  font-size: 16px;
}

.contact-item p {
  margin: 0;
  font-size: 14px;
  color: var(--text-secondary);
}

footer {
  background: var(--bg-footer);
  color: var(--text-footer);
  padding: 48px 0 24px;
  margin-top: 48px;
  transition: background var(--transition), color var(--transition);
}

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

footer h4 {
  color: #ffffff;
  font-size: 16px;
  margin-bottom: 14px;
  font-weight: 700;
}

footer a {
  color: var(--text-footer);
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  transition: color var(--transition), transform var(--transition);
}

footer a:hover {
  color: #f9a8d4;
  transform: translateX(4px);
  text-decoration: none;
}

footer p {
  color: var(--text-footer-muted);
  font-size: 13px;
  line-height: 1.7;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--text-footer-muted);
}

.back-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #ffffff;
  border: none;
  cursor: pointer;
  font-size: 20px;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 22px -8px var(--brand-glow);
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.back-top.show {
  display: flex;
}

.back-top:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 14px 28px -10px var(--brand-glow);
  filter: brightness(1.06);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

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

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

::-webkit-scrollbar-thumb {
  background: var(--brand);
  border-radius: 8px;
  border: 2px solid var(--bg-soft);
}

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

@media (max-width: 860px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-nav);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    backdrop-filter: blur(16px) saturate(180%);
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
    box-shadow: var(--shadow-lg);
  }

  .nav-links.open {
    display: flex;
    animation: bannerFade 0.3s ease;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 12px 20px;
  }

  .nav-links a::after {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .nav-search {
    display: none;
  }

  .banner-slide {
    padding: 32px 24px;
  }

  .banner-text h1 {
    font-size: 24px;
  }

  .section-title {
    font-size: 22px;
  }

  h2 {
    font-size: 21px;
  }

  .banner::before,
  .banner::after {
    width: 260px;
    height: 260px;
  }
}

@media (max-width: 480px) {
  .banner-text h1 {
    font-size: 20px;
  }

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

  .step {
    flex-direction: column;
    gap: 12px;
  }

  .container {
    padding: 0 16px;
  }

  section {
    padding: 36px 0;
  }

  .card {
    padding: 20px;
  }

  .article-item {
    padding: 18px 18px;
  }

  .back-top {
    right: 16px;
    bottom: 16px;
    width: 40px;
    height: 40px;
    font-size: 18px;
  }
}

@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;
  }
}