:root {
  --bg: #0f1220;
  --bg-soft: #161a2e;
  --bg-card: rgba(255, 255, 255, 0.06);
  --bg-card-hover: rgba(255, 255, 255, 0.1);
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.14);
  --text: #eef1f8;
  --text-soft: #b6bdd0;
  --text-dim: #8a92a8;
  --primary: #e94560;
  --primary-2: #ff6b81;
  --accent: #4f8cff;
  --accent-2: #7b5cff;
  --grad: linear-gradient(135deg, #e94560 0%, #7b5cff 55%, #4f8cff 100%);
  --grad-soft: linear-gradient(135deg, rgba(233, 69, 96, 0.22), rgba(79, 140, 255, 0.22));
  --radius: 18px;
  --radius-sm: 12px;
  --radius-lg: 26px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-soft: 0 6px 18px rgba(0, 0, 0, 0.22);
  --ring: 0 0 0 3px rgba(79, 140, 255, 0.35);
  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6fb;
    --bg-soft: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.72);
    --bg-card-hover: rgba(255, 255, 255, 0.95);
    --glass: rgba(255, 255, 255, 0.62);
    --glass-border: rgba(20, 30, 60, 0.1);
    --text: #141a2b;
    --text-soft: #3c465e;
    --text-dim: #5f6a82;
    --primary: #d92a48;
    --primary-2: #ff5c74;
    --accent: #2f6bff;
    --accent-2: #6a4bff;
    --shadow: 0 10px 30px rgba(30, 45, 90, 0.12);
    --shadow-soft: 0 6px 18px rgba(30, 45, 90, 0.08);
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(1100px 520px at 12% -8%, rgba(233, 69, 96, 0.2), transparent 60%),
    radial-gradient(900px 480px at 92% 2%, rgba(79, 140, 255, 0.18), transparent 62%),
    radial-gradient(800px 600px at 50% 100%, rgba(123, 92, 255, 0.12), transparent 65%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.25s var(--ease), opacity 0.25s var(--ease);
}

a:hover,
a:focus-visible {
  color: var(--primary-2);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: none;
  box-shadow: var(--ring);
  border-radius: 8px;
}

h1, h2, h3, h4 {
  line-height: 1.3;
  margin: 0 0 0.6em;
  letter-spacing: 0.2px;
  font-weight: 800;
}

h1 {
  font-size: clamp(1.7rem, 4.4vw, 2.7rem);
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

h2 {
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  position: relative;
  padding-left: 16px;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 5px;
  border-radius: 6px;
  background: var(--grad);
}

h3 {
  font-size: clamp(1.08rem, 2.2vw, 1.3rem);
  color: var(--text);
}

p {
  margin: 0 0 1em;
  color: var(--text-soft);
}

strong {
  color: var(--text);
  font-weight: 700;
}

ul, ol {
  margin: 0 0 1.2em;
  padding-left: 1.4em;
  color: var(--text-soft);
}

li {
  margin-bottom: 0.45em;
}

li::marker {
  color: var(--primary);
}

hr {
  border: none;
  height: 1px;
  background: var(--glass-border);
  margin: 2rem 0;
}

::selection {
  background: rgba(233, 69, 96, 0.35);
  color: #fff;
}

/* ---------- Header / Nav ---------- */

header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  background: var(--glass);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
}

header nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

header nav > a[aria-label] {
  font-size: 1.28rem;
  font-weight: 900;
  letter-spacing: 1px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
  transition: transform 0.3s var(--ease), filter 0.3s var(--ease);
}

header nav > a[aria-label]:hover {
  transform: translateY(-1px) scale(1.03);
  filter: drop-shadow(0 4px 12px rgba(233, 69, 96, 0.5));
}

header nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0;
  padding: 0;
  flex: 1 1 auto;
}

header nav ul li {
  margin: 0;
}

header nav ul li a {
  display: inline-block;
  padding: 7px 12px;
  border-radius: 999px;
  font-size: 0.92rem;
  color: var(--text-soft);
  font-weight: 600;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease);
}

header nav ul li a:hover,
header nav ul li a:focus-visible {
  color: var(--text);
  background: var(--grad-soft);
  transform: translateY(-2px);
}

header form[role="search"] {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

header form[role="search"] label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

header form[role="search"] input[type="search"] {
  width: 210px;
  padding: 9px 14px;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), width 0.3s var(--ease);
}

header form[role="search"] input[type="search"]::placeholder {
  color: var(--text-dim);
}

header form[role="search"] input[type="search"]:focus {
  width: 250px;
  border-color: var(--accent);
  background: var(--bg-card-hover);
}

header form[role="search"] button {
  padding: 9px 18px;
  font-size: 0.88rem;
  font-family: inherit;
  font-weight: 700;
  color: #fff;
  background: var(--grad);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), filter 0.25s var(--ease);
}

header form[role="search"] button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(233, 69, 96, 0.4);
  filter: brightness(1.08);
}

/* ---------- Main layout ---------- */

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 20px 60px;
}

main > section {
  position: relative;
  margin-bottom: 30px;
  padding: 30px 28px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  box-shadow: var(--shadow-soft);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
  animation: rise 0.7s var(--ease) both;
}

main > section:hover {
  border-color: rgba(233, 69, 96, 0.35);
  box-shadow: var(--shadow);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(26px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

main > section:nth-of-type(odd) {
  animation-delay: 0.06s;
}

main > section:nth-of-type(even) {
  animation-delay: 0.12s;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ---------- Hero ---------- */

#hero {
  padding: 0;
  overflow: hidden;
  background: var(--grad-soft), var(--bg-card);
  border: 1px solid var(--glass-border);
}

#hero::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(233, 69, 96, 0.35), transparent 68%);
  filter: blur(20px);
  pointer-events: none;
}

#hero::after {
  content: "";
  position: absolute;
  inset: auto auto -50% -12%;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(79, 140, 255, 0.32), transparent 68%);
  filter: blur(22px);
  pointer-events: none;
}

#hero > * {
  position: relative;
  z-index: 1;
}

#hero > h1,
#hero > p,
#hero > figure,
#hero > p:last-child {
  padding-left: 30px;
  padding-right: 30px;
}

#hero > h1 {
  padding-top: 34px;
}

#hero > p:last-child {
  padding-bottom: 34px;
  margin-bottom: 0;
}

#hero figure {
  margin: 0;
  padding: 0 30px;
}

#hero figure svg {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
}

#hero figure:hover svg {
  transform: scale(1.015) translateY(-3px);
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.45);
}

#hero figcaption {
  margin-top: 12px;
  font-size: 0.86rem;
  color: var(--text-dim);
  text-align: center;
}

#hero > p:last-child {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  font-size: 0.95rem;
}

#hero > p:last-child a {
  display: inline-block;
  padding: 9px 20px;
  border-radius: 999px;
  font-weight: 700;
  color: var(--text);
  background: var(--bg-card-hover);
  border: 1px solid var(--glass-border);
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), box-shadow 0.25s var(--ease), color 0.25s var(--ease);
}

#hero > p:last-child a:hover {
  transform: translateY(-3px);
  color: #fff;
  background: var(--grad);
  box-shadow: 0 10px 24px rgba(233, 69, 96, 0.4);
}

/* ---------- Breadcrumb ---------- */

main > nav[aria-label="面包屑导航"] {
  margin: 0 0 22px;
}

main > nav[aria-label="面包屑导航"] ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 10px 16px;
  font-size: 0.86rem;
  color: var(--text-dim);
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  width: fit-content;
  max-width: 100%;
}

main > nav[aria-label="面包屑导航"] ol li {
  margin: 0;
  display: inline-flex;
  align-items: center;
}

main > nav[aria-label="面包屑导航"] ol li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--text-dim);
  opacity: 0.7;
}

main > nav[aria-label="面包屑导航"] ol li[aria-current="page"] {
  color: var(--text);
  font-weight: 600;
}

/* ---------- Cards inside sections ---------- */

#products ul,
#solutions ul,
#howto ul,
#howto ol,
#contact ul,
#sitemap ul,
#links ul {
  list-style: none;
  padding-left: 0;
  display: grid;
  gap: 12px;
}

#products ul li,
#solutions ul li,
#howto ul li,
#howto ol li,
#contact ul li,
#sitemap ul li,
#links ul li {
  position: relative;
  margin: 0;
  padding: 14px 18px 14px 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  color: var(--text-soft);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

#products ul li::before,
#solutions ul li::before,
#howto ul li::before,
#howto ol li::before,
#sitemap ul li::before,
#links ul li::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--grad);
  transform: translateY(-50%);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

#howto ol {
  counter-reset: step;
}

#howto ol li {
  counter-increment: step;
  padding-left: 52px;
}

#howto ol li::before {
  content: counter(step);
  width: 24px;
  height: 24px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 800;
  color: #fff;
  background: var(--grad);
  transform: translateY(-50%);
  box-shadow: 0 4px 12px rgba(233, 69, 96, 0.35);
}

#products ul li:hover,
#solutions ul li:hover,
#howto ul li:hover,
#howto ol li:hover,
#contact ul li:hover,
#sitemap ul li:hover,
#links ul li:hover {
  transform: translateY(-3px) translateX(2px);
  background: var(--bg-card-hover);
  border-color: rgba(79, 140, 255, 0.4);
  box-shadow: var(--shadow-soft);
}

#products ul li:hover::before,
#solutions ul li:hover::before,
#howto ul li:hover::before,
#sitemap ul li:hover::before,
#links ul li:hover::before {
  transform: translateY(-50%) scale(1.35);
  box-shadow: 0 0 0 5px rgba(233, 69, 96, 0.18);
}

#sitemap ul,
#links ul {
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
}

#sitemap ul li a,
#links ul li a {
  font-weight: 600;
}

#contact ul {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

/* ---------- Cases / blockquote ---------- */

#cases blockquote {
  position: relative;
  margin: 0 0 16px;
  padding: 22px 24px 22px 60px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-left: 4px solid transparent;
  border-image: var(--grad) 1;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.35s var(--ease), background 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

#cases blockquote::before {
  content: "\201C";
  position: absolute;
  left: 18px;
  top: 6px;
  font-size: 3rem;
  line-height: 1;
  font-family: Georgia, "Times New Roman", serif;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.9;
}

#cases blockquote:hover {
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  box-shadow: var(--shadow);
}

#cases blockquote p {
  margin: 0;
  font-style: italic;
  color: var(--text);
}

/* ---------- News / Articles ---------- */

#news article,
#articles article {
  position: relative;
  margin: 0 0 16px;
  padding: 20px 22px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  transition: transform 0.35s var(--ease), background 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

#news article::after,
#articles article::after {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
}

#news article:hover,
#articles article:hover {
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  border-color: rgba(123, 92, 255, 0.4);
  box-shadow: var(--shadow);
}

#news article:hover::after,
#articles article:hover::after {
  transform: scaleX(1);
}

#news article h3,
#articles article h3 {
  margin-bottom: 8px;
  transition: color 0.3s var(--ease);
}

#news article:hover h3,
#articles article:hover h3 {
  color: var(--primary-2);
}

#news article p:first-of-type,
#articles article p:first-of-type {
  display: inline-block;
  margin-bottom: 10px;
  padding: 2px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.4px;
  color: var(--accent);
  background: rgba(79, 140, 255, 0.12);
  border: 1px solid rgba(79, 140, 255, 0.3);
  border-radius: 999px;
}

#articles article p:last-child {
  margin-bottom: 0;
}

#articles article p:last-child a {
  display: inline-block;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  background: var(--grad);
  border-radius: 999px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), filter 0.25s var(--ease);
}

#articles article p:last-child a:hover {
  transform: translateX(4px);
  box-shadow: 0 8px 20px rgba(233, 69, 96, 0.4);
  filter: brightness(1.08);
}

/* ---------- FAQ ---------- */

#faq details {
  margin: 0 0 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  overflow: hidden;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

#faq details[open] {
  background: var(--bg-card-hover);
  border-color: rgba(233, 69, 96, 0.4);
  box-shadow: var(--shadow-soft);
}

#faq summary {
  position: relative;
  padding: 15px 52px 15px 20px;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: color 0.25s var(--ease);
}

#faq summary::-webkit-details-marker {
  display: none;
}

#faq summary::after {
  content: "";
  position: absolute;
  right: 20px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--primary);
  border-bottom: 2px solid var(--primary);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.35s var(--ease);
}

#faq details[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
}

#faq summary:hover {
  color: var(--primary-2);
}

#faq details p {
  margin: 0;
  padding: 0 20px 18px;
  font-size: 0.95rem;
  color: var(--text-soft);
  animation: fadeIn 0.4s var(--ease) both;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- Footer ---------- */

footer {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto 40px;
  padding: 34px 28px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  box-shadow: var(--shadow-soft);
}

footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: var(--grad);
}

footer section {
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px dashed var(--glass-border);
}

footer section:last-of-type {
  border-bottom: none;
}

footer h2 {
  font-size: 1.12rem;
  padding-left: 14px;
}

footer p {
  font-size: 0.9rem;
  color: var(--text-dim);
}

footer > p {
  margin: 6px 0;
  text-align: center;
  font-size: 0.84rem;
  letter-spacing: 0.3px;
}

footer > p:last-child {
  color: var(--text-dim);
  font-size: 0.8rem;
}

/* ---------- Scroll reveal enhancement ---------- */

@supports (animation-timeline: view()) {
  main > section {
    animation: rise linear both;
    animation-timeline: view();
    animation-range: entry 0% cover 26%;
  }
}

/* ---------- Responsive ---------- */

@media (max-width: 980px) {
  header nav {
    gap: 10px 16px;
  }

  header nav ul {
    order: 3;
    flex-basis: 100%;
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 4px;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
  }

  header nav ul li a {
    white-space: nowrap;
  }

  header form[role="search"] {
    margin-left: auto;
  }

  header form[role="search"] input[type="search"] {
    width: 170px;
  }

  header form[role="search"] input[type="search"]:focus {
    width: 200px;
  }

  main > section {
    padding: 26px 20px;
  }

  #hero > h1,
  #hero > p,
  #hero figure,
  #hero > p:last-child {
    padding-left: 20px;
    padding-right: 20px;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  header nav {
    padding: 10px 14px;
  }

  header nav > a[aria-label] {
    font-size: 1.12rem;
  }

  header form[role="search"] {
    flex: 1 1 100%;
  }

  header form[role="search"] input[type="search"],
  header form[role="search"] input[type="search"]:focus {
    width: 100%;
    flex: 1 1 auto;
  }

  header form[role="search"] button {
    padding: 9px 16px;
    flex: 0 0 auto;
  }

  main {
    padding: 18px 12px 40px;
  }

  main > section {
    padding: 22px 16px;
    margin-bottom: 20px;
    border-radius: var(--radius);
  }

  #hero > h1 {
    padding-top: 26px;
  }

  #hero > h1,
  #hero > p,
  #hero figure,
  #hero > p:last-child {
    padding-left: 16px;
    padding-right: 16px;
  }

  #hero > p:last-child {
    padding-bottom: 26px;
    gap: 10px;
  }

  #hero > p:last-child a {
    flex: 1 1 auto;
    text-align: center;
    padding: 9px 14px;
    font-size: 0.88rem;
  }

  #cases blockquote {
    padding: 18px 18px 18px 48px;
  }

  #cases blockquote::before {
    left: 14px;
    font-size: 2.4rem;
  }

  #news article,
  #articles article {
    padding: 16px 16px;
  }

  #contact ul {
    grid-template-columns: 1fr;
  }

  #sitemap ul,
  #links ul {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  footer {
    padding: 24px 16px;
    margin: 0 12px 30px;
    border-radius: var(--radius);
  }

  footer > p {
    text-align: left;
  }
}

@media (max-width: 380px) {
  header nav > a[aria-label] {
    font-size: 1rem;
  }

  h1 {
    font-size: 1.5rem;
  }
}

/* ---------- Print ---------- */

@media print {
  body {
    background: #fff;
    color: #000;
  }

  header,
  #sitemap,
  #links,
  footer::before {
    display: none;
  }

  main > section,
  footer {
    background: none;
    border: 1px solid #ccc;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    animation: none;
  }

  a {
    color: #000;
    text-decoration: underline;
  }
}