:root {
  --star-primary: #6d5dfc;
  --star-primary-dark: #4a3ae0;
  --star-accent: #ff7eb3;
  --star-accent-2: #4facfe;
  --star-gold: #ffd166;
  --star-bg: #f4f6fc;
  --star-bg-alt: #ffffff;
  --star-card: rgba(255, 255, 255, 0.72);
  --star-card-border: rgba(255, 255, 255, 0.6);
  --star-text: #1a1f36;
  --star-text-soft: #4a5170;
  --star-text-mute: #767e9c;
  --star-line: rgba(109, 93, 252, 0.14);
  --star-shadow: 0 18px 44px -18px rgba(35, 27, 90, 0.32);
  --star-shadow-sm: 0 8px 22px -12px rgba(35, 27, 90, 0.28);
  --star-radius: 20px;
  --star-radius-sm: 14px;
  --star-blur: 16px;
  --star-header-h: 0px;
  --star-max: 1180px;
  --star-transition: 0.35s cubic-bezier(0.22, 0.68, 0.32, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --star-bg: #070b1c;
    --star-bg-alt: #0d1330;
    --star-card: rgba(23, 30, 62, 0.66);
    --star-card-border: rgba(120, 132, 200, 0.22);
    --star-text: #eef1ff;
    --star-text-soft: #c3c9e8;
    --star-text-mute: #8d95bd;
    --star-line: rgba(140, 152, 230, 0.16);
    --star-shadow: 0 20px 48px -20px rgba(0, 0, 0, 0.75);
    --star-shadow-sm: 0 10px 26px -14px rgba(0, 0, 0, 0.7);
  }
}

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

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

body {
  margin: 0;
  padding: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--star-text);
  background-color: var(--star-bg);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(109, 93, 252, 0.16), transparent 42%),
    radial-gradient(circle at 88% 4%, rgba(79, 172, 254, 0.18), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(255, 126, 179, 0.14), transparent 46%);
  background-attachment: fixed;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover,
a:focus-visible {
  color: var(--star-accent);
}

a:focus-visible {
  outline: 2px solid var(--star-accent);
  outline-offset: 3px;
  border-radius: 6px;
}

::selection {
  background: rgba(109, 93, 252, 0.28);
  color: var(--star-text);
}

/* ============ 滚动条 ============ */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

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

/* ============ 头部 Banner ============ */
header[role="banner"] {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(2.6rem, 6vw, 5rem) clamp(1.1rem, 4vw, 3rem) clamp(2.2rem, 5vw, 4rem);
  color: #ffffff;
  background:
    linear-gradient(135deg, #1b1350 0%, #3a2a9c 38%, #6d5dfc 68%, #4facfe 100%);
  border-radius: 0 0 clamp(24px, 4vw, 46px) clamp(24px, 4vw, 46px);
  box-shadow: var(--star-shadow);
}

header[role="banner"]::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    radial-gradient(2px 2px at 12% 26%, rgba(255, 255, 255, 0.9), transparent 60%),
    radial-gradient(1.6px 1.6px at 32% 68%, rgba(255, 255, 255, 0.75), transparent 60%),
    radial-gradient(1.8px 1.8px at 58% 18%, rgba(255, 255, 255, 0.8), transparent 60%),
    radial-gradient(1.4px 1.4px at 74% 54%, rgba(255, 255, 255, 0.7), transparent 60%),
    radial-gradient(2px 2px at 88% 30%, rgba(255, 255, 255, 0.85), transparent 60%),
    radial-gradient(1.5px 1.5px at 46% 84%, rgba(255, 255, 255, 0.65), transparent 60%),
    radial-gradient(1.7px 1.7px at 22% 88%, rgba(255, 255, 255, 0.7), transparent 60%),
    radial-gradient(1.3px 1.3px at 66% 76%, rgba(255, 255, 255, 0.6), transparent 60%);
  animation: starTwinkle 6s ease-in-out infinite alternate;
}

header[role="banner"]::after {
  content: "";
  position: absolute;
  z-index: -1;
  width: min(620px, 78vw);
  aspect-ratio: 1;
  right: -14%;
  top: -32%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 209, 102, 0.42), rgba(255, 126, 179, 0.16) 45%, transparent 70%);
  filter: blur(8px);
  animation: floatGlow 12s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes starTwinkle {
  0% {
    opacity: 0.55;
  }
  100% {
    opacity: 1;
  }
}

@keyframes floatGlow {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(-24px, 26px, 0) scale(1.08);
  }
}

header[role="banner"] h1 {
  position: relative;
  max-width: var(--star-max);
  margin: 0 auto 1rem;
  font-size: clamp(1.55rem, 4.4vw, 2.9rem);
  line-height: 1.28;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-shadow: 0 6px 26px rgba(10, 6, 40, 0.42);
  animation: riseIn 0.9s cubic-bezier(0.22, 0.68, 0.32, 1) both;
}

header[role="banner"] h1::after {
  content: "";
  display: block;
  width: 84px;
  height: 5px;
  margin-top: 0.9rem;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--star-gold), var(--star-accent));
  box-shadow: 0 0 18px rgba(255, 209, 102, 0.6);
}

header[role="banner"] > p {
  position: relative;
  max-width: var(--star-max);
  margin: 0 auto 1.8rem;
  font-size: clamp(0.94rem, 1.6vw, 1.06rem);
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 2px 12px rgba(10, 6, 40, 0.35);
  animation: riseIn 0.9s 0.12s cubic-bezier(0.22, 0.68, 0.32, 1) both;
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translate3d(0, 26px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

/* ============ 主导航 ============ */
nav[role="navigation"] {
  position: relative;
  max-width: var(--star-max);
  margin: 0 auto;
  padding: 0.85rem clamp(0.85rem, 2vw, 1.4rem);
  border-radius: var(--star-radius);
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.26);
  backdrop-filter: blur(var(--star-blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--star-blur)) saturate(160%);
  box-shadow: 0 10px 30px -18px rgba(8, 5, 36, 0.7);
  animation: riseIn 0.9s 0.22s cubic-bezier(0.22, 0.68, 0.32, 1) both;
}

nav[role="navigation"] ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  justify-content: center;
}

nav[role="navigation"] li {
  margin: 0;
}

nav[role="navigation"] a {
  display: inline-block;
  padding: 0.42rem 0.92rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.94);
  border-radius: 999px;
  border: 1px solid transparent;
  transition: background var(--star-transition), color var(--star-transition), transform var(--star-transition), border-color var(--star-transition), box-shadow var(--star-transition);
}

nav[role="navigation"] a:hover,
nav[role="navigation"] a:focus-visible {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.42);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px -12px rgba(0, 0, 0, 0.6);
}

/* ============ 主体布局 ============ */
main[role="main"] {
  display: block;
  max-width: var(--star-max);
  margin: 0 auto;
  padding: clamp(1.6rem, 4vw, 3.2rem) clamp(1rem, 3.6vw, 2.2rem) clamp(2.4rem, 5vw, 4rem);
}

main[role="main"] > section {
  position: relative;
  margin: 0 0 clamp(1.4rem, 3vw, 2.2rem);
  padding: clamp(1.5rem, 3.6vw, 2.6rem);
  border-radius: var(--star-radius);
  background: var(--star-card);
  border: 1px solid var(--star-card-border);
  backdrop-filter: blur(var(--star-blur)) saturate(150%);
  -webkit-backdrop-filter: blur(var(--star-blur)) saturate(150%);
  box-shadow: var(--star-shadow-sm);
  transition: transform var(--star-transition), box-shadow var(--star-transition), border-color var(--star-transition);
  animation: revealUp 0.8s cubic-bezier(0.22, 0.68, 0.32, 1) both;
  animation-timeline: view();
  animation-range: entry 0% cover 26%;
}

@supports not (animation-timeline: view()) {
  main[role="main"] > section {
    animation: revealUp 0.8s cubic-bezier(0.22, 0.68, 0.32, 1) both;
  }
}

@keyframes revealUp {
  from {
    opacity: 0;
    transform: translate3d(0, 34px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

main[role="main"] > section:hover {
  transform: translateY(-4px);
  border-color: rgba(109, 93, 252, 0.42);
  box-shadow: var(--star-shadow);
}

/* ============ 标题体系 ============ */
main[role="main"] h2 {
  position: relative;
  margin: 0 0 1.2rem;
  padding-left: 1rem;
  font-size: clamp(1.28rem, 2.6vw, 1.7rem);
  line-height: 1.4;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--star-text);
}

main[role="main"] h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 5px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--star-primary), var(--star-accent-2));
  box-shadow: 0 0 14px rgba(109, 93, 252, 0.55);
}

main[role="main"] h3 {
  margin: 1.5rem 0 0.6rem;
  font-size: clamp(1.02rem, 1.9vw, 1.2rem);
  line-height: 1.5;
  font-weight: 700;
  color: var(--star-text);
  transition: color var(--star-transition);
}

main[role="main"] h3::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 0.55rem;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--star-primary), var(--star-accent));
  transform: rotate(45deg) translateY(-1px);
  vertical-align: middle;
}

main[role="main"] h3:hover {
  color: var(--star-primary);
}

main[role="main"] p {
  margin: 0 0 0.9rem;
  color: var(--star-text-soft);
  font-size: 0.98rem;
  line-height: 1.9;
}

main[role="main"] p:last-child {
  margin-bottom: 0;
}

main[role="main"] strong {
  color: var(--star-text);
  font-weight: 700;
}

/* ============ 列表 ============ */
main[role="main"] ul,
main[role="main"] ol {
  margin: 0.6rem 0 1rem;
  padding-left: 1.4rem;
  color: var(--star-text-soft);
}

main[role="main"] ul {
  list-style: none;
  padding-left: 0.2rem;
}

main[role="main"] ul li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.55rem;
  line-height: 1.85;
  transition: color var(--star-transition), transform var(--star-transition);
}

main[role="main"] ul li::before {
  content: "";
  position: absolute;
  left: 0.15rem;
  top: 0.72em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--star-accent-2), var(--star-primary));
  box-shadow: 0 0 10px rgba(79, 172, 254, 0.55);
}

main[role="main"] ul li:hover {
  color: var(--star-text);
  transform: translateX(4px);
}

main[role="main"] ol {
  counter-reset: star-counter;
  list-style: none;
  padding-left: 0.2rem;
}

main[role="main"] ol li {
  position: relative;
  counter-increment: star-counter;
  padding-left: 2.6rem;
  margin-bottom: 0.7rem;
  line-height: 1.85;
  transition: color var(--star-transition), transform var(--star-transition);
}

main[role="main"] ol li::before {
  content: counter(star-counter);
  position: absolute;
  left: 0;
  top: 0.15rem;
  width: 1.8rem;
  height: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
  color: #ffffff;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--star-primary), var(--star-accent-2));
  box-shadow: 0 6px 14px -8px rgba(109, 93, 252, 0.9);
}

main[role="main"] ol li:hover {
  color: var(--star-text);
  transform: translateX(4px);
}

/* ============ 引用（客户评价） ============ */
blockquote {
  position: relative;
  margin: 1rem 0;
  padding: 1.2rem 1.3rem 1.2rem 3.1rem;
  border-radius: var(--star-radius-sm);
  background: linear-gradient(135deg, rgba(109, 93, 252, 0.1), rgba(79, 172, 254, 0.1));
  border: 1px solid var(--star-line);
  border-left: 4px solid var(--star-primary);
  transition: transform var(--star-transition), box-shadow var(--star-transition), border-color var(--star-transition);
}

blockquote::before {
  content: "\201C";
  position: absolute;
  left: 0.85rem;
  top: 0.15rem;
  font-size: 3.4rem;
  line-height: 1;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--star-primary);
  opacity: 0.45;
}

blockquote p {
  margin: 0;
  font-size: 0.97rem;
  line-height: 1.9;
  color: var(--star-text-soft);
}

blockquote:hover {
  transform: translateY(-3px);
  border-color: rgba(109, 93, 252, 0.45);
  box-shadow: var(--star-shadow-sm);
}

/* ============ 文章卡片 ============ */
main[role="main"] article {
  position: relative;
  margin: 0 0 1rem;
  padding: 1.2rem 1.3rem;
  border-radius: var(--star-radius-sm);
  background: var(--star-card);
  border: 1px solid var(--star-card-border);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  transition: transform var(--star-transition), box-shadow var(--star-transition), border-color var(--star-transition), background var(--star-transition);
}

main[role="main"] article::after {
  content: "";
  position: absolute;
  left: 1.3rem;
  right: 1.3rem;
  bottom: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--star-primary), var(--star-accent-2), transparent);
  opacity: 0;
  transform: scaleX(0.4);
  transform-origin: left;
  transition: opacity var(--star-transition), transform var(--star-transition);
}

main[role="main"] article:hover {
  transform: translateY(-5px);
  border-color: rgba(109, 93, 252, 0.42);
  box-shadow: var(--star-shadow);
}

main[role="main"] article:hover::after {
  opacity: 1;
  transform: scaleX(1);
}

main[role="main"] article h3 {
  margin-top: 0;
}

main[role="main"] article p {
  font-size: 0.94rem;
}

main[role="main"] article p:first-of-type {
  font-size: 0.84rem;
  color: var(--star-text-mute);
  letter-spacing: 0.02em;
}

main[role="main"] article a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--star-primary);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: rgba(109, 93, 252, 0.1);
  transition: background var(--star-transition), color var(--star-transition), transform var(--star-transition), box-shadow var(--star-transition);
}

main[role="main"] article a::after {
  content: "\2192";
  transition: transform var(--star-transition);
}

main[role="main"] article a:hover,
main[role="main"] article a:focus-visible {
  color: #ffffff;
  background: linear-gradient(135deg, var(--star-primary), var(--star-accent-2));
  transform: translateY(-2px);
  box-shadow: 0 10px 22px -12px rgba(109, 93, 252, 0.95);
}

main[role="main"] article a:hover::after {
  transform: translateX(3px);
}

/* ============ FAQ ============ */
#faq article {
  padding-left: 3.4rem;
}

#faq article::before {
  content: "Q";
  position: absolute;
  left: 1.1rem;
  top: 1.15rem;
  width: 1.7rem;
  height: 1.7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.86rem;
  font-weight: 800;
  color: #ffffff;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--star-primary), var(--star-accent));
  box-shadow: 0 8px 18px -10px rgba(109, 93, 252, 0.95);
}

#faq article h3 {
  margin-top: 0;
  color: var(--star-text);
}

#faq article h3::before {
  display: none;
}

/* ============ HowTo ============ */
#howto ol li::before {
  background: linear-gradient(135deg, var(--star-accent), var(--star-primary));
}

#howto h3 {
  display: inline-block;
  padding: 0.28rem 0.85rem;
  border-radius: 999px;
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  color: var(--star-primary);
  background: rgba(109, 93, 252, 0.12);
  border: 1px solid var(--star-line);
}

#howto h3::before {
  background: linear-gradient(135deg, var(--star-primary), var(--star-accent-2));
}

#howto h3:hover {
  color: #ffffff;
  background: linear-gradient(135deg, var(--star-primary), var(--star-accent-2));
}

/* ============ 联系方式 ============ */
#contact p {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: baseline;
  padding: 0.55rem 0.9rem;
  margin-bottom: 0.5rem;
  border-radius: 12px;
  background: rgba(109, 93, 252, 0.07);
  border: 1px solid var(--star-line);
  transition: background var(--star-transition), transform var(--star-transition), border-color var(--star-transition);
}

#contact p:hover {
  background: rgba(109, 93, 252, 0.14);
  border-color: rgba(109, 93, 252, 0.4);
  transform: translateX(4px);
}

/* ============ 网站地图 / 友情链接 ============ */
#sitemap ul,
#links ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.5rem 0.8rem;
  padding-left: 0;
}

#sitemap ul li,
#links ul li {
  padding-left: 0;
  margin-bottom: 0;
}

#sitemap ul li::before,
#links ul li::before {
  display: none;
}

#sitemap ul li a,
#links ul li a {
  display: block;
  padding: 0.55rem 0.8rem;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--star-text-soft);
  background: rgba(109, 93, 252, 0.07);
  border: 1px solid var(--star-line);
  transition: color var(--star-transition), background var(--star-transition), transform var(--star-transition), border-color var(--star-transition), box-shadow var(--star-transition);
}

#sitemap ul li a:hover,
#sitemap ul li a:focus-visible,
#links ul li a:hover,
#links ul li a:focus-visible {
  color: #ffffff;
  background: linear-gradient(135deg, var(--star-primary), var(--star-accent-2));
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 12px 24px -14px rgba(109, 93, 252, 0.95);
}

/* ============ 页脚 ============ */
footer[role="contentinfo"] {
  position: relative;
  margin-top: clamp(1rem, 3vw, 2rem);
  padding: clamp(1.8rem, 4vw, 3rem) clamp(1.2rem, 4vw, 3rem);
  text-align: center;
  color: rgba(255, 255, 255, 0.88);
  background: linear-gradient(135deg, #171043 0%, #2c1f7d 45%, #4a3ae0 100%);
  border-radius: clamp(24px, 4vw, 46px) clamp(24px, 4vw, 46px) 0 0;
  box-shadow: 0 -18px 44px -24px rgba(35, 27, 90, 0.6);
  overflow: hidden;
}

footer[role="contentinfo"]::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.6px 1.6px at 16% 34%, rgba(255, 255, 255, 0.75), transparent 60%),
    radial-gradient(1.4px 1.4px at 42% 62%, rgba(255, 255, 255, 0.6), transparent 60%),
    radial-gradient(1.8px 1.8px at 68% 26%, rgba(255, 255, 255, 0.7), transparent 60%),
    radial-gradient(1.3px 1.3px at 86% 72%, rgba(255, 255, 255, 0.55), transparent 60%);
  animation: starTwinkle 7s ease-in-out infinite alternate;
  pointer-events: none;
}

footer[role="contentinfo"] p {
  position: relative;
  margin: 0.25rem 0;
  font-size: 0.9rem;
  line-height: 1.8;
  letter-spacing: 0.02em;
}

footer[role="contentinfo"] p:first-child {
  font-weight: 600;
  color: #ffffff;
}

/* ============ 响应式 ============ */
@media (max-width: 900px) {
  nav[role="navigation"] ul {
    justify-content: flex-start;
  }

  nav[role="navigation"] a {
    font-size: 0.86rem;
    padding: 0.36rem 0.78rem;
  }

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

@media (max-width: 640px) {
  body {
    font-size: 15px;
    line-height: 1.72;
  }

  header[role="banner"] {
    padding: 2.2rem 1.1rem 2rem;
    border-radius: 0 0 24px 24px;
  }

  header[role="banner"] h1::after {
    width: 64px;
    height: 4px;
  }

  nav[role="navigation"] {
    padding: 0.7rem 0.7rem;
    border-radius: 16px;
  }

  nav[role="navigation"] ul {
    gap: 0.32rem;
  }

  nav[role="navigation"] a {
    font-size: 0.8rem;
    padding: 0.32rem 0.66rem;
  }

  main[role="main"] {
    padding: 1.2rem 0.85rem 2.2rem;
  }

  main[role="main"] > section {
    padding: 1.25rem 1rem;
    border-radius: 16px;
    margin-bottom: 1rem;
  }

  main[role="main"] h2 {
    padding-left: 0.8rem;
    font-size: 1.16rem;
  }

  main[role="main"] h2::before {
    width: 4px;
  }

  main[role="main"] h3 {
    font-size: 1rem;
  }

  main[role="main"] p {
    font-size: 0.92rem;
    line-height: 1.85;
  }

  main[role="main"] article {
    padding: 1rem 0.95rem;
    border-radius: 14px;
  }

  #faq article {
    padding-left: 2.9rem;
  }

  #faq article::before {
    left: 0.85rem;
    width: 1.5rem;
    height: 1.5rem;
    font-size: 0.78rem;
  }

  blockquote {
    padding: 1rem 1rem 1rem 2.6rem;
  }

  blockquote::before {
    font-size: 2.8rem;
    left: 0.7rem;
  }

  #sitemap ul,
  #links ul {
    grid-template-columns: repeat(auto-fill, minmax(112px, 1fr));
    gap: 0.4rem;
  }

  #sitemap ul li a,
  #links ul li a {
    padding: 0.45rem 0.6rem;
    font-size: 0.84rem;
  }

  footer[role="contentinfo"] {
    border-radius: 24px 24px 0 0;
    padding: 1.7rem 1.1rem 2rem;
  }

  footer[role="contentinfo"] p {
    font-size: 0.84rem;
  }
}

@media (max-width: 380px) {
  nav[role="navigation"] a {
    font-size: 0.76rem;
    padding: 0.28rem 0.56rem;
  }

  main[role="main"] h2 {
    font-size: 1.08rem;
  }
}

/* ============ 降低动画偏好 ============ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============ 高对比度 / 强制颜色 ============ */
@media (forced-colors: active) {
  main[role="main"] > section,
  main[role="main"] article,
  blockquote,
  nav[role="navigation"] {
    border: 1px solid CanvasText;
  }
}

/* ============ 打印 ============ */
@media print {
  body {
    background: #ffffff;
    color: #000000;
  }

  header[role="banner"],
  footer[role="contentinfo"] {
    background: #ffffff !important;
    color: #000000 !important;
    box-shadow: none;
  }

  header[role="banner"] h1,
  header[role="banner"] > p,
  footer[role="contentinfo"] p {
    color: #000000 !important;
    text-shadow: none;
  }

  main[role="main"] > section,
  main[role="main"] article,
  blockquote {
    box-shadow: none;
    background: #ffffff;
    border: 1px solid #cccccc;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    animation: none;
  }

  nav[role="navigation"] {
    display: none;
  }
}