:root {
  --brand: #F5A623;
  --brand-dark: #E08E00;
  --brand-soft: #FFF7E6;
  --ink: #2E4057;
  --ink-soft: #4A5B72;
  --ink-muted: #6B7A8F;
  --bg: #FFFDF8;
  --bg-alt: #F7F4EE;
  --card: #FFFFFF;
  --card-border: rgba(46, 64, 87, 0.08);
  --glass: rgba(255, 255, 255, 0.65);
  --glass-border: rgba(255, 255, 255, 0.5);
  --shadow-sm: 0 2px 8px rgba(46, 64, 87, 0.06);
  --shadow-md: 0 8px 24px rgba(46, 64, 87, 0.08);
  --shadow-lg: 0 18px 48px rgba(46, 64, 87, 0.12);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --maxw: 1180px;
  --transition: 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --brand: #FFB84D;
    --brand-dark: #F5A623;
    --brand-soft: #2A2318;
    --ink: #EAF0F7;
    --ink-soft: #C3CEDC;
    --ink-muted: #93A2B5;
    --bg: #0F141B;
    --bg-alt: #151C25;
    --card: #1A222D;
    --card-border: rgba(255, 255, 255, 0.08);
    --glass: rgba(26, 34, 45, 0.6);
    --glass-border: rgba(255, 255, 255, 0.12);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.5);
  }
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background-color: var(--bg);
  background-image: radial-gradient(
      circle at 12% 0%,
      rgba(245, 166, 35, 0.08),
      transparent 42%
    ),
    radial-gradient(circle at 88% 8%, rgba(46, 64, 87, 0.06), transparent 40%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

a:hover,
a:focus-visible {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

h1,
h2,
h3,
h4 {
  color: var(--ink);
  line-height: 1.35;
  margin: 0 0 0.6em;
  font-weight: 700;
  letter-spacing: 0.01em;
}

h1 {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
}

h2 {
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
  position: relative;
  padding-left: 16px;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 5px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--brand), var(--brand-dark));
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
}

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

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

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

li {
  margin-bottom: 0.45em;
}

strong {
  color: var(--ink);
}

blockquote {
  margin: 0 0 1.2em;
  padding: 18px 22px;
  border-left: 4px solid var(--brand);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--glass);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border-top: 1px solid var(--glass-border);
  border-right: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

blockquote:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

blockquote p {
  margin: 0;
  font-style: italic;
  color: var(--ink-soft);
}

dl {
  margin: 0 0 1.4em;
  display: grid;
  grid-template-columns: minmax(110px, 180px) 1fr;
  gap: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--card-border);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

dt {
  padding: 12px 18px;
  font-weight: 600;
  color: var(--ink);
  background: var(--bg-alt);
  border-bottom: 1px solid var(--card-border);
}

dd {
  margin: 0;
  padding: 12px 18px;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--card-border);
  word-break: break-word;
}

dt:last-of-type,
dd:last-of-type {
  border-bottom: none;
}

/* ============ 顶部栏 ============ */

.top-bar {
  background: linear-gradient(
    120deg,
    #2E4057 0%,
    #3B5470 45%,
    #F5A623 130%
  );
  color: #FFF7E6;
  text-align: center;
  padding: 9px 16px;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.top-bar p {
  margin: 0;
  color: rgba(255, 247, 230, 0.92);
}

/* ============ 头部与导航 ============ */

header[role="banner"] {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass);
  backdrop-filter: blur(18px) saturate(170%);
  -webkit-backdrop-filter: blur(18px) saturate(170%);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 20px rgba(46, 64, 87, 0.05);
}

nav[aria-label="主导航"] {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.logo a {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
}

.logo a::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  box-shadow: 0 0 0 4px rgba(245, 166, 35, 0.18);
  flex-shrink: 0;
}

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

nav[aria-label="主导航"] ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

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

nav[aria-label="主导航"] ul a {
  display: inline-block;
  padding: 8px 13px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--ink-soft);
  text-decoration: none;
  transition: background var(--transition), color var(--transition),
    transform var(--transition), box-shadow var(--transition);
}

nav[aria-label="主导航"] ul a:hover,
nav[aria-label="主导航"] ul a:focus-visible {
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  box-shadow: 0 6px 16px rgba(245, 166, 35, 0.35);
  transform: translateY(-2px);
  text-decoration: none;
}

/* ============ 主内容容器 ============ */

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

main > nav[aria-label="面包屑导航"] ol {
  list-style: none;
  margin: 0 0 24px;
  padding: 10px 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--ink-muted);
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  width: fit-content;
  max-width: 100%;
}

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

main > nav[aria-label="面包屑导航"] li + li::before {
  content: "›";
  margin-right: 6px;
  color: var(--brand);
  font-weight: 700;
}

/* ============ 通用 Section 卡片 ============ */

main > section {
  position: relative;
  margin: 0 0 32px;
  padding: clamp(22px, 3.2vw, 40px);
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
  animation: rise-in 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}

main > section:hover {
  box-shadow: var(--shadow-md);
}

main > section:nth-child(2) {
  animation-delay: 0.05s;
}
main > section:nth-child(3) {
  animation-delay: 0.1s;
}
main > section:nth-child(4) {
  animation-delay: 0.15s;
}
main > section:nth-child(5) {
  animation-delay: 0.2s;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@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;
  }
}

/* ============ Hero 区 ============ */

#hero {
  background: linear-gradient(
    135deg,
    rgba(245, 166, 35, 0.16) 0%,
    rgba(255, 247, 230, 0.7) 38%,
    rgba(46, 64, 87, 0.1) 100%
  );
  border: 1px solid rgba(245, 166, 35, 0.22);
  overflow: hidden;
  isolation: isolate;
}

#hero::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(245, 166, 35, 0.28),
    transparent 68%
  );
  filter: blur(10px);
  z-index: -1;
  animation: float-orb 12s ease-in-out infinite alternate;
}

@keyframes float-orb {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(-30px, 26px, 0) scale(1.08);
  }
}

#hero h1 {
  background: linear-gradient(120deg, var(--ink) 20%, var(--brand-dark) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: var(--ink);
  margin-bottom: 0.8em;
}

#hero figure {
  margin: 0 0 26px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--glass);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition);
}

#hero figure:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

#hero figure svg {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

#hero figcaption {
  padding: 12px 20px;
  font-size: 0.84rem;
  color: var(--ink-muted);
  text-align: center;
  border-top: 1px solid var(--card-border);
  background: var(--glass);
}

/* ============ 站内导航 Aside ============ */

aside[aria-label="站内导航锚点"] {
  margin: 0 0 32px;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--glass);
  backdrop-filter: blur(18px) saturate(170%);
  -webkit-backdrop-filter: blur(18px) saturate(170%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  animation: rise-in 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}

aside[aria-label="站内导航锚点"] h2 {
  font-size: 1.15rem;
  margin-bottom: 0.8em;
}

aside[aria-label="站内导航锚点"] ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 10px;
}

aside[aria-label="站内导航锚点"] li {
  margin: 0;
}

aside[aria-label="站内导航锚点"] a {
  display: block;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--ink-soft);
  background: var(--card);
  border: 1px solid var(--card-border);
  text-decoration: none;
  transition: all var(--transition);
}

aside[aria-label="站内导航锚点"] a:hover,
aside[aria-label="站内导航锚点"] a:focus-visible {
  color: var(--ink);
  border-color: var(--brand);
  background: var(--brand-soft);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(245, 166, 35, 0.18);
  text-decoration: none;
}

/* ============ 文章卡片 ============ */

#news article,
#articles article {
  position: relative;
  margin: 0 0 18px;
  padding: 22px 24px;
  background: var(--bg-alt);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition), background var(--transition);
}

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

#news article:hover,
#articles article:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(245, 166, 35, 0.4);
  background: var(--card);
}

#news article h3,
#articles article h2 {
  font-size: 1.1rem;
  padding-left: 0;
  margin-bottom: 0.4em;
}

#articles article h2::before {
  display: none;
}

#articles article h2 {
  color: var(--ink);
}

#news article p:first-of-type,
#articles article p:first-of-type {
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-bottom: 0.7em;
  letter-spacing: 0.02em;
}

#articles article p:last-child a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--brand-dark);
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--brand-soft);
  border: 1px solid rgba(245, 166, 35, 0.3);
  transition: all var(--transition);
  text-decoration: none;
}

#articles article p:last-child a::after {
  content: "→";
  transition: transform var(--transition);
}

#articles article p:last-child a:hover {
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff;
  border-color: transparent;
  text-decoration: none;
  box-shadow: 0 6px 16px rgba(245, 166, 35, 0.32);
}

#articles article p:last-child a:hover::after {
  transform: translateX(4px);
}

/* ============ FAQ 折叠卡片 ============ */

#faq details {
  margin: 0 0 14px;
  background: var(--bg-alt);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition),
    background var(--transition);
}

#faq details:last-child {
  margin-bottom: 0;
}

#faq details[open] {
  background: var(--card);
  border-color: rgba(245, 166, 35, 0.45);
  box-shadow: var(--shadow-md);
}

#faq details:hover {
  border-color: rgba(245, 166, 35, 0.35);
}

#faq summary {
  cursor: pointer;
  padding: 16px 48px 16px 20px;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--ink);
  position: relative;
  list-style: none;
  transition: color var(--transition), background var(--transition);
  -webkit-tap-highlight-color: transparent;
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  line-height: 24px;
  text-align: center;
  border-radius: 50%;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--brand-dark);
  background: var(--brand-soft);
  border: 1px solid rgba(245, 166, 35, 0.35);
  transition: transform var(--transition), background var(--transition),
    color var(--transition);
}

#faq details[open] summary::after {
  content: "−";
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff;
  border-color: transparent;
  transform: translateY(-50%) rotate(180deg);
}

#faq summary:hover {
  color: var(--brand-dark);
  background: rgba(245, 166, 35, 0.06);
}

#faq details > p {
  margin: 0;
  padding: 0 20px 18px;
  font-size: 0.94rem;
  color: var(--ink-soft);
  animation: fade-down 0.35s ease both;
}

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

/* ============ HowTo 步骤列表 ============ */

#howto ol {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: 0 0 1.4em;
  display: grid;
  gap: 12px;
}

#howto ol > li {
  counter-increment: step;
  position: relative;
  margin: 0;
  padding: 16px 20px 16px 62px;
  background: var(--bg-alt);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--ink-soft);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition), background var(--transition);
}

#howto ol > li::before {
  content: counter(step);
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  box-shadow: 0 4px 12px rgba(245, 166, 35, 0.35);
  transition: transform var(--transition);
}

#howto ol > li:hover {
  transform: translateX(4px);
  background: var(--card);
  border-color: rgba(245, 166, 35, 0.4);
  box-shadow: var(--shadow-sm);
}

#howto ol > li:hover::before {
  transform: translateY(-50%) scale(1.1);
}

#howto ul li::marker {
  color: var(--brand);
}

/* ============ 联系 & 页脚 ============ */

#contact a {
  font-weight: 600;
}

footer[role="contentinfo"] {
  margin-top: 40px;
  padding: 40px 20px 34px;
  text-align: center;
  background: linear-gradient(
    160deg,
    #2E4057 0%,
    #24344A 60%,
    #1C2938 100%
  );
  color: rgba(255, 247, 230, 0.82);
  border-top: 4px solid var(--brand);
}

footer[role="contentinfo"] p {
  margin: 0 auto 10px;
  max-width: 900px;
  font-size: 0.86rem;
  color: rgba(255, 247, 230, 0.82);
  line-height: 1.7;
}

footer[role="contentinfo"] p:first-child {
  font-size: 1rem;
  font-weight: 700;
  color: #FFF7E6;
  letter-spacing: 0.03em;
}

footer[role="contentinfo"] a {
  color: var(--brand);
  text-decoration: none;
  transition: color var(--transition);
}

footer[role="contentinfo"] a:hover {
  color: #FFD27A;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============ 响应式：平板 ============ */

@media (max-width: 900px) {
  nav[aria-label="主导航"] {
    padding: 10px 16px;
    gap: 10px;
  }

  nav[aria-label="主导航"] ul {
    gap: 2px;
  }

  nav[aria-label="主导航"] ul a {
    padding: 7px 10px;
    font-size: 0.84rem;
  }

  main {
    padding: 22px 16px 48px;
  }

  main > section {
    border-radius: var(--radius-md);
  }
}

/* ============ 响应式：手机 ============ */

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

  .top-bar {
    font-size: 0.72rem;
    padding: 7px 12px;
    letter-spacing: 0.02em;
  }

  nav[aria-label="主导航"] {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 10px 12px;
  }

  .logo {
    text-align: center;
  }

  .logo a {
    font-size: 1.15rem;
    justify-content: center;
    display: flex;
  }

  nav[aria-label="主导航"] ul {
    justify-content: center;
    gap: 4px;
    overflow-x: auto;
    flex-wrap: wrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 2px;
  }

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

  nav[aria-label="主导航"] ul a {
    padding: 7px 11px;
    font-size: 0.8rem;
    white-space: nowrap;
  }

  main {
    padding: 16px 12px 40px;
  }

  main > nav[aria-label="面包屑导航"] ol {
    font-size: 0.78rem;
    padding: 8px 14px;
    margin-bottom: 16px;
  }

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

  h2 {
    padding-left: 13px;
  }

  h2::before {
    width: 4px;
  }

  dl {
    grid-template-columns: 1fr;
  }

  dt {
    padding: 10px 14px 4px;
    border-bottom: none;
    background: var(--bg-alt);
    font-size: 0.86rem;
  }

  dd {
    padding: 0 14px 12px;
    background: var(--bg-alt);
    font-size: 0.9rem;
  }

  dt:last-of-type {
    border-bottom: none;
  }

  dd:last-of-type {
    border-bottom: none;
  }

  #hero figure {
    border-radius: var(--radius-md);
  }

  #hero figure svg {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
  }

  #hero figcaption {
    font-size: 0.76rem;
    padding: 10px 14px;
  }

  aside[aria-label="站内导航锚点"] {
    padding: 18px 16px;
    border-radius: var(--radius-md);
  }

  aside[aria-label="站内导航锚点"] ul {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  aside[aria-label="站内导航锚点"] a {
    padding: 9px 12px;
    font-size: 0.82rem;
  }

  #news article,
  #articles article {
    padding: 16px 16px;
    border-radius: var(--radius-sm);
  }

  #news article h3,
  #articles article h2 {
    font-size: 1rem;
  }

  #faq summary {
    padding: 14px 44px 14px 16px;
    font-size: 0.92rem;
  }

  #faq summary::after {
    right: 14px;
    width: 24px;
    height: 24px;
    line-height: 22px;
    font-size: 1rem;
  }

  #faq details > p {
    padding: 0 16px 16px;
    font-size: 0.9rem;
  }

  #howto ol > li {
    padding: 14px 14px 14px 54px;
    font-size: 0.9rem;
  }

  #howto ol > li::before {
    left: 13px;
    width: 28px;
    height: 28px;
    font-size: 0.82rem;
  }

  blockquote {
    padding: 14px 16px;
  }

  footer[role="contentinfo"] {
    padding: 30px 14px 26px;
  }

  footer[role="contentinfo"] p {
    font-size: 0.78rem;
  }

  footer[role="contentinfo"] p:first-child {
    font-size: 0.92rem;
  }
}

@media (max-width: 380px) {
  aside[aria-label="站内导航锚点"] ul {
    grid-template-columns: 1fr;
  }

  nav[aria-label="主导航"] ul a {
    font-size: 0.76rem;
    padding: 6px 9px;
  }
}

/* ============ 高对比度与打印 ============ */

@media (prefers-contrast: more) {
  :root {
    --card-border: rgba(46, 64, 87, 0.3);
    --ink-muted: #4A5B72;
  }

  nav[aria-label="主导航"] ul a:hover,
  nav[aria-label="主导航"] ul a:focus-visible {
    outline: 2px solid var(--ink);
  }
}

@media print {
  header[role="banner"],
  aside[aria-label="站内导航锚点"],
  footer[role="contentinfo"] {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 12pt;
  }

  main > section {
    box-shadow: none;
    border: 1px solid #ccc;
    break-inside: avoid;
    animation: none;
  }

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

  #faq details {
    break-inside: avoid;
  }

  #faq details > p {
    display: block;
  }
}