:root {
  --bg: #f5f7fb;
  --bg-alt: #ffffff;
  --bg-elevated: rgba(255, 255, 255, 0.72);
  --text: #1a2233;
  --text-soft: #4a5568;
  --text-muted: #6b7789;
  --primary: #1f6feb;
  --primary-deep: #1250b8;
  --primary-soft: rgba(31, 111, 235, 0.12);
  --accent: #22c1a4;
  --accent-soft: rgba(34, 193, 164, 0.14);
  --warm: #ff8a5b;
  --border: rgba(26, 34, 51, 0.1);
  --border-strong: rgba(26, 34, 51, 0.18);
  --shadow-sm: 0 2px 8px rgba(20, 30, 55, 0.06);
  --shadow-md: 0 10px 30px rgba(20, 30, 55, 0.1);
  --shadow-lg: 0 24px 60px rgba(20, 30, 55, 0.16);
  --glass-blur: blur(18px) saturate(160%);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --grad-hero: linear-gradient(135deg, #1f6feb 0%, #22c1a4 55%, #7c5cff 100%);
  --grad-banner: linear-gradient(120deg, rgba(31, 111, 235, 0.92), rgba(34, 193, 164, 0.85) 55%, rgba(255, 138, 91, 0.8));
  --grad-card: linear-gradient(160deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.65));
  --grad-line: linear-gradient(90deg, var(--primary), var(--accent), var(--warm));
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c111c;
    --bg-alt: #131a28;
    --bg-elevated: rgba(24, 33, 50, 0.72);
    --text: #e9eef7;
    --text-soft: #b6c1d4;
    --text-muted: #8b98ad;
    --primary: #5b9bff;
    --primary-deep: #3d7fe8;
    --primary-soft: rgba(91, 155, 255, 0.16);
    --accent: #3ddcbf;
    --accent-soft: rgba(61, 220, 191, 0.16);
    --warm: #ff9d72;
    --border: rgba(233, 238, 247, 0.12);
    --border-strong: rgba(233, 238, 247, 0.22);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 12px 34px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 28px 70px rgba(0, 0, 0, 0.6);
    --grad-card: linear-gradient(160deg, rgba(30, 41, 62, 0.92), rgba(19, 26, 40, 0.7));
    --grad-hero: linear-gradient(135deg, #1c4fb5 0%, #12796a 55%, #4a3aa8 100%);
    --grad-banner: linear-gradient(120deg, rgba(28, 79, 181, 0.95), rgba(18, 121, 106, 0.9) 55%, rgba(160, 74, 40, 0.85));
  }
}

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

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

@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;
  }
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  background-image:
    radial-gradient(circle at 12% 0%, var(--primary-soft), transparent 42%),
    radial-gradient(circle at 88% 12%, var(--accent-soft), transparent 40%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 6px;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.6em;
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.4rem, 2.8vw, 2rem);
}

h3 {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
}

h4 {
  font-size: 1.05rem;
  color: var(--text-soft);
}

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

ul,
ol {
  margin: 0 0 1em;
  padding-left: 1.25em;
  color: var(--text-soft);
}

li {
  margin-bottom: 0.4em;
}

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

header[role="banner"] {
  position: sticky;
  top: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.5rem;
  padding: 0.9rem clamp(1rem, 4vw, 2.5rem);
  background: var(--bg-elevated);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

header[role="banner"] > div[aria-label="品牌标识"] {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

header[role="banner"] > div[aria-label="品牌标识"] a {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--grad-line);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  white-space: nowrap;
  transition: filter 0.3s var(--ease);
}

header[role="banner"] > div[aria-label="品牌标识"] a:hover {
  filter: brightness(1.15);
}

header[role="banner"] > div[aria-label="品牌标识"] span {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

header nav[aria-label="主导航"] {
  min-width: 0;
}

header nav[aria-label="主导航"] ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

header nav[aria-label="主导航"] li {
  margin: 0;
}

header nav[aria-label="主导航"] a {
  display: inline-block;
  padding: 0.35rem 0.7rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-soft);
  border-radius: 999px;
  transition: color 0.25s var(--ease), background 0.25s var(--ease),
    transform 0.25s var(--ease);
}

header nav[aria-label="主导航"] a:hover {
  color: var(--primary);
  background: var(--primary-soft);
  transform: translateY(-1px);
}

header form[role="search"] {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
}

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

header form[role="search"] input[type="search"] {
  width: 190px;
  padding: 0.5rem 0.9rem;
  font-size: 0.88rem;
  color: var(--text);
  background: var(--bg-alt);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease),
    width 0.3s var(--ease);
}

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

header form[role="search"] input[type="search"]:focus {
  width: 230px;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-soft);
  outline: none;
}

header form[role="search"] button {
  padding: 0.5rem 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  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(-1px);
  box-shadow: 0 8px 20px var(--primary-soft);
  filter: brightness(1.06);
}

header form[role="search"] button:active {
  transform: translateY(0);
}

main {
  display: block;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(1.25rem, 3vw, 2.5rem) clamp(1rem, 3vw, 2rem) 3rem;
}

main > section {
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
  animation: rise-in 0.7s var(--ease) both;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

main > section:nth-of-type(2) { animation-delay: 0.04s; }
main > section:nth-of-type(3) { animation-delay: 0.08s; }
main > section:nth-of-type(4) { animation-delay: 0.12s; }
main > section:nth-of-type(5) { animation-delay: 0.16s; }
main > section:nth-of-type(6) { animation-delay: 0.2s; }
main > section:nth-of-type(7) { animation-delay: 0.24s; }
main > section:nth-of-type(8) { animation-delay: 0.28s; }
main > section:nth-of-type(9) { animation-delay: 0.32s; }
main > section:nth-of-type(10) { animation-delay: 0.36s; }

#hero {
  position: relative;
  padding: clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius-xl);
  background: var(--grad-hero);
  color: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  isolation: isolate;
}

#hero::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 60%;
  height: 140%;
  background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.35), transparent 65%);
  filter: blur(30px);
  z-index: -1;
  pointer-events: none;
}

#hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.18));
  z-index: -1;
  pointer-events: none;
}

#hero h1,
#hero h2,
#hero h3,
#hero p,
#hero strong,
#hero a {
  color: #fff;
}

#hero p {
  color: rgba(255, 255, 255, 0.9);
  max-width: 74ch;
}

#hero nav[aria-label="面包屑导航"] ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
  font-size: 0.82rem;
}

#hero nav[aria-label="面包屑导航"] li {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
}

#hero nav[aria-label="面包屑导航"] li + li::before {
  content: "/";
  margin-right: 0.5rem;
  opacity: 0.6;
}

#hero nav[aria-label="面包屑导航"] a {
  color: rgba(255, 255, 255, 0.92);
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.4);
  text-underline-offset: 3px;
}

#hero nav[aria-label="面包屑导航"] a:hover {
  text-decoration-color: #fff;
}

#hero > div[aria-label="平台数据概览"] {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.9rem;
  margin-top: 1.5rem;
}

#hero > div[aria-label="平台数据概览"] p {
  margin: 0;
  padding: 1rem 1.15rem;
  font-size: 0.92rem;
  background: rgba(255, 255, 255, 0.14);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}

#hero > div[aria-label="平台数据概览"] p:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.22);
}

#about,
#products,
#services,
#scenarios,
#solutions,
#cases,
#news,
#articles,
#faq,
#howto,
#knowledge,
#contact,
#sitemap,
#links {
  padding: clamp(1.25rem, 3vw, 2.25rem);
  background: var(--bg-elevated);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.35s var(--ease), transform 0.35s var(--ease),
    border-color 0.35s var(--ease);
}

#about:hover,
#products:hover,
#services:hover,
#scenarios:hover,
#solutions:hover,
#cases:hover,
#news:hover,
#articles:hover,
#faq:hover,
#howto:hover,
#knowledge:hover,
#contact:hover,
#sitemap:hover,
#links:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}

main > section > h2 {
  position: relative;
  padding-bottom: 0.6rem;
  margin-bottom: 1.2rem;
}

main > section > h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 64px;
  height: 4px;
  border-radius: 4px;
  background: var(--grad-line);
}

main > section > h3 {
  margin-top: 1.5rem;
  padding-left: 0.7rem;
  border-left: 4px solid var(--primary);
  border-radius: 2px;
}

#products > h3,
#services > h3,
#scenarios > h3,
#solutions > h3,
#cases > h3,
#news > h3,
#knowledge > h3,
#contact > h3 {
  color: var(--text);
}

#products > h4,
#solutions > h4 {
  margin-top: 1.1rem;
  color: var(--primary);
}

#products {
  display: flow-root;
}

#products > h3,
#products > h4,
#products > p {
  max-width: 78ch;
}

#cases > p {
  padding: 0.9rem 1.1rem;
  background: var(--primary-soft);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-sm);
  font-style: italic;
  color: var(--text);
}

#news > h3 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
}

#news > h3 + p {
  margin-bottom: 1.2rem;
}

#articles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

#articles > h2 {
  grid-column: 1 / -1;
}

#articles article {
  display: flex;
  flex-direction: column;
  padding: 1.25rem;
  background: var(--grad-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
    border-color 0.35s var(--ease);
}

#articles article:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

#articles article h3 {
  margin: 0 0 0.5rem;
  font-size: 1.08rem;
  line-height: 1.45;
  border: none;
  padding: 0;
}

#articles article p {
  margin: 0 0 0.6rem;
  font-size: 0.9rem;
}

#articles article p:first-of-type {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

#articles article a {
  align-self: flex-start;
  margin-top: auto;
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 999px;
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
    transform 0.25s var(--ease);
}

#articles article a:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  transform: translateX(3px);
}

#faq details {
  margin-bottom: 0.75rem;
  padding: 0.9rem 1.15rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease),
    background 0.3s var(--ease);
}

#faq details[open] {
  border-color: var(--primary);
  box-shadow: 0 6px 20px var(--primary-soft);
}

#faq details:hover {
  border-color: var(--border-strong);
}

#faq summary {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
  list-style: none;
  transition: color 0.25s var(--ease);
}

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

#faq summary::before {
  content: "+";
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.4rem;
  height: 1.4rem;
  margin-top: 0.15rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 50%;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease),
    color 0.3s var(--ease);
}

#faq details[open] summary::before {
  content: "−";
  transform: rotate(180deg);
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

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

#faq details p {
  margin: 0.75rem 0 0;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--border);
  font-size: 0.94rem;
  animation: fade-in 0.35s var(--ease) both;
}

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

#howto > h3 {
  margin-top: 1.4rem;
}

#howto h4 {
  margin: 1rem 0 0.4rem;
  padding: 0.35rem 0.8rem;
  display: inline-block;
  font-size: 0.95rem;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 999px;
}

#howto > p:last-of-type {
  padding: 1rem 1.2rem;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--text);
}

#contact > p {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.45rem;
  padding: 0.55rem 0.9rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.94rem;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

#contact > p:hover {
  transform: translateX(4px);
  border-color: var(--primary);
}

#sitemap ul,
#links ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.5rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

#sitemap li,
#links li {
  margin: 0;
}

#sitemap a,
#links a {
  display: block;
  padding: 0.5rem 0.85rem;
  font-size: 0.9rem;
  color: var(--text-soft);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: color 0.25s var(--ease), background 0.25s var(--ease),
    transform 0.25s var(--ease), border-color 0.25s var(--ease);
}

#sitemap a:hover,
#links a:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-color: transparent;
  transform: translateY(-2px);
}

footer[role="contentinfo"] {
  position: relative;
  margin-top: 2rem;
  padding: clamp(2rem, 5vw, 3.5rem) clamp(1rem, 4vw, 2.5rem) 2rem;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  color: var(--text-soft);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  max-width: 100%;
}

footer[role="contentinfo"]::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-line);
}

footer[role="contentinfo"] > section {
  min-width: 0;
}

footer[role="contentinfo"] h2 {
  font-size: 1.05rem;
  margin-bottom: 0.75rem;
  color: var(--text);
}

footer[role="contentinfo"] h3 {
  font-size: 0.92rem;
  margin: 0.9rem 0 0.35rem;
  color: var(--text-soft);
}

footer[role="contentinfo"] p {
  margin: 0 0 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
}

footer[role="contentinfo"] > p {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

footer[role="contentinfo"] > p:first-of-type {
  border-top: none;
  padding-top: 0;
  font-size: 0.82rem;
}

footer[role="contentinfo"] > p:last-of-type {
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

::selection {
  background: var(--primary);
  color: #fff;
}

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

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

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--primary), var(--accent));
  border-radius: 999px;
  border: 2px solid var(--bg);
}

::-webkit-scrollbar-thumb:hover {
  filter: brightness(1.1);
}

@media (max-width: 1024px) {
  header[role="banner"] {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand search"
      "nav nav";
    gap: 0.75rem 1rem;
  }

  header[role="banner"] > div[aria-label="品牌标识"] {
    grid-area: brand;
  }

  header nav[aria-label="主导航"] {
    grid-area: nav;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 0.2rem;
  }

  header nav[aria-label="主导航"]::-webkit-scrollbar {
    display: none;
  }

  header nav[aria-label="主导航"] ul {
    flex-wrap: nowrap;
    width: max-content;
  }

  header form[role="search"] {
    grid-area: search;
  }

  header form[role="search"] input[type="search"] {
    width: 150px;
  }

  header form[role="search"] input[type="search"]:focus {
    width: 180px;
  }
}

@media (max-width: 720px) {
  body {
    font-size: 15px;
  }

  header[role="banner"] {
    grid-template-columns: 1fr;
    grid-template-areas:
      "brand"
      "search"
      "nav";
    padding: 0.85rem 1rem;
  }

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

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

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

  header nav[aria-label="主导航"] a {
    padding: 0.4rem 0.7rem;
    font-size: 0.85rem;
  }

  main {
    padding: 1rem 0.85rem 2rem;
  }

  #hero {
    padding: 1.35rem;
    border-radius: var(--radius-lg);
  }

  #hero > div[aria-label="平台数据概览"] {
    grid-template-columns: 1fr;
  }

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

  #sitemap ul,
  #links ul {
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  }

  footer[role="contentinfo"] {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 2rem 1rem 1.5rem;
  }

  main > section > h3 {
    padding-left: 0.55rem;
  }
}

@media (max-width: 400px) {
  h1 {
    font-size: 1.5rem;
  }

  main > section {
    padding: 1rem;
  }

  #hero {
    padding: 1.1rem;
  }
}

@media (hover: none) {
  #articles article:hover,
  #hero > div[aria-label="平台数据概览"] p:hover,
  #contact > p:hover,
  #sitemap a:hover,
  #links a:hover {
    transform: none;
  }
}