:root {
  --c-primary: #e63946;
  --c-primary-dark: #c1121f;
  --c-primary-light: #ff6b7a;
  --c-accent: #f4a261;
  --c-accent-2: #e76f51;
  --c-bg: #fdfbfb;
  --c-bg-alt: #f6f2f3;
  --c-surface: #ffffff;
  --c-surface-glass: rgba(255, 255, 255, 0.72);
  --c-surface-glass-strong: rgba(255, 255, 255, 0.88);
  --c-text: #1f1a1c;
  --c-text-soft: #514a4d;
  --c-text-muted: #857c80;
  --c-border: rgba(31, 26, 28, 0.1);
  --c-border-strong: rgba(31, 26, 28, 0.18);
  --c-shadow: rgba(120, 30, 50, 0.12);
  --c-shadow-strong: rgba(120, 30, 50, 0.22);
  --grad-hero: linear-gradient(135deg, #e63946 0%, #ff6b7a 42%, #f4a261 100%);
  --grad-hero-deep: linear-gradient(150deg, #b81d2c 0%, #e63946 45%, #f4a261 100%);
  --grad-card: linear-gradient(160deg, rgba(255, 255, 255, 0.9), rgba(255, 240, 242, 0.7));
  --grad-accent: linear-gradient(120deg, #e63946, #f4a261);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-pill: 999px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --maxw: 1180px;
  --transition: 0.32s cubic-bezier(0.22, 0.61, 0.36, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --c-bg: #121014;
    --c-bg-alt: #1a161b;
    --c-surface: #1e1a20;
    --c-surface-glass: rgba(34, 28, 34, 0.62);
    --c-surface-glass-strong: rgba(38, 32, 38, 0.86);
    --c-text: #f4eef0;
    --c-text-soft: #cfc5c9;
    --c-text-muted: #9a8f94;
    --c-border: rgba(244, 238, 240, 0.12);
    --c-border-strong: rgba(244, 238, 240, 0.22);
    --c-shadow: rgba(0, 0, 0, 0.5);
    --c-shadow-strong: rgba(0, 0, 0, 0.7);
    --grad-hero: linear-gradient(135deg, #7d1520 0%, #b81d2c 45%, #c26b3a 100%);
    --grad-hero-deep: linear-gradient(150deg, #5c0f18 0%, #8f1622 45%, #a85730 100%);
    --grad-card: linear-gradient(160deg, rgba(40, 33, 40, 0.9), rgba(30, 24, 30, 0.7));
  }
}

*,
*::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-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--c-text);
  background-color: var(--c-bg);
  background-image: radial-gradient(
      circle at 12% 0%,
      rgba(230, 57, 70, 0.08),
      transparent 42%
    ),
    radial-gradient(circle at 88% 6%, rgba(244, 162, 97, 0.1), transparent 40%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--c-primary-light);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

h1,
h2,
h3,
h4 {
  margin: 0 0 var(--space-4);
  line-height: 1.28;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-text);
}

h1 {
  font-size: clamp(1.9rem, 4.6vw, 3.1rem);
}

h2 {
  font-size: clamp(1.5rem, 3.2vw, 2.2rem);
  position: relative;
  padding-left: var(--space-4);
}

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

h3 {
  font-size: clamp(1.12rem, 2vw, 1.32rem);
  color: var(--c-text-soft);
}

p {
  margin: 0 0 var(--space-4);
  color: var(--c-text-soft);
}

ul,
ol {
  margin: 0 0 var(--space-4);
  padding-left: 1.4em;
  color: var(--c-text-soft);
}

li {
  margin-bottom: var(--space-2);
}

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

time {
  font-size: 0.85rem;
  color: var(--c-text-muted);
  font-variant-numeric: tabular-nums;
}

blockquote {
  margin: var(--space-4) 0;
  padding: var(--space-4) var(--space-5);
  border-left: 4px solid var(--c-primary);
  background: var(--c-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  box-shadow: 0 8px 24px -12px var(--c-shadow);
}

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

details {
  margin-bottom: var(--space-3);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-5);
  box-shadow: 0 4px 18px -10px var(--c-shadow);
  transition: box-shadow var(--transition), border-color var(--transition),
    transform var(--transition);
}

details:hover {
  border-color: var(--c-border-strong);
  box-shadow: 0 12px 30px -14px var(--c-shadow-strong);
  transform: translateY(-2px);
}

details[open] {
  border-color: rgba(230, 57, 70, 0.36);
}

summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--c-text);
  padding: var(--space-2) 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition: color var(--transition);
}

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

summary::before {
  content: "+";
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--grad-accent);
  color: #fff;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1;
  transition: transform var(--transition);
}

details[open] summary::before {
  content: "−";
  transform: rotate(180deg);
}

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

details > p {
  margin: var(--space-3) 0 var(--space-2);
  padding-top: var(--space-3);
  border-top: 1px dashed var(--c-border);
}

header[role="banner"] {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-surface-glass-strong);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--c-border);
  box-shadow: 0 6px 30px -18px var(--c-shadow-strong);
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--space-2) var(--space-5);
  font-size: 0.82rem;
  color: var(--c-text-muted);
  border-bottom: 1px solid var(--c-border);
}

.topbar span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.topbar span::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-primary);
  box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.16);
  animation: pulse 2.4s ease-in-out infinite;
}

.topbar a {
  color: var(--c-primary);
  font-weight: 700;
  white-space: nowrap;
}

nav[aria-label="主导航"] {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--space-3) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

nav[aria-label="主导航"] > a[aria-label] {
  font-size: 1.32rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--c-text);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--grad-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: transform var(--transition), filter var(--transition);
}

nav[aria-label="主导航"] > a[aria-label]:hover {
  transform: scale(1.03);
  filter: saturate(1.2);
}

nav[aria-label="主导航"] ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
}

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

nav[aria-label="主导航"] ul a {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-text-soft);
  border-radius: var(--radius-pill);
  position: relative;
  transition: color var(--transition), background var(--transition),
    transform var(--transition);
}

nav[aria-label="主导航"] ul a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--grad-accent);
  transform: translateX(-50%);
  transition: width var(--transition);
}

nav[aria-label="主导航"] ul a:hover,
nav[aria-label="主导航"] ul a:focus-visible {
  color: var(--c-primary);
  background: rgba(230, 57, 70, 0.08);
  transform: translateY(-1px);
}

nav[aria-label="主导航"] ul a:hover::after {
  width: 60%;
}

main {
  display: block;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--space-5) var(--space-8);
}

main > nav[aria-label="面包屑导航"] {
  padding: var(--space-4) 0 var(--space-2);
  font-size: 0.84rem;
}

main > nav[aria-label="面包屑导航"] ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

main > nav[aria-label="面包屑导航"] li {
  margin: 0;
  display: inline-flex;
  align-items: center;
  color: var(--c-text-muted);
}

main > nav[aria-label="面包屑导航"] li + li::before {
  content: "/";
  margin-right: var(--space-2);
  color: var(--c-border-strong);
}

main > nav[aria-label="面包屑导航"] li[aria-current="page"] {
  color: var(--c-text);
  font-weight: 700;
}

main > nav[aria-label="面包屑导航"] a {
  color: var(--c-text-muted);
}

main > nav[aria-label="面包屑导航"] a:hover {
  color: var(--c-primary);
}

main > section {
  margin: var(--space-7) 0;
  padding: clamp(var(--space-5), 4vw, var(--space-7));
  background: var(--grad-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px -30px var(--c-shadow-strong);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
  animation: fadeUp 0.7s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}

main > section::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.35),
    transparent 40%
  );
  opacity: 0.5;
  mix-blend-mode: overlay;
}

main > section:nth-of-type(1) {
  animation-delay: 0.05s;
}
main > section:nth-of-type(2) {
  animation-delay: 0.1s;
}
main > section:nth-of-type(3) {
  animation-delay: 0.15s;
}

#hero {
  padding: clamp(var(--space-6), 6vw, var(--space-9))
    clamp(var(--space-5), 5vw, var(--space-8));
  background: var(--grad-hero);
  color: #fff;
  border: none;
  border-radius: var(--radius-xl);
  box-shadow: 0 30px 70px -35px rgba(230, 57, 70, 0.65);
  isolation: isolate;
}

#hero::before {
  content: "";
  position: absolute;
  inset: -30% -10% auto auto;
  width: 60%;
  height: 130%;
  background: radial-gradient(
    circle at 70% 30%,
    rgba(255, 255, 255, 0.35),
    transparent 60%
  );
  filter: blur(20px);
  z-index: -1;
  animation: floatSlow 12s ease-in-out infinite;
}

#hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -40% -10%;
  height: 70%;
  background: radial-gradient(
    circle at 30% 80%,
    rgba(255, 255, 255, 0.22),
    transparent 65%
  );
  filter: blur(24px);
  z-index: -1;
  animation: floatSlow 16s ease-in-out infinite reverse;
}

#hero h1 {
  color: #fff;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.18);
  margin-bottom: var(--space-5);
}

#hero p {
  color: rgba(255, 255, 255, 0.94);
  font-size: clamp(0.98rem, 1.7vw, 1.12rem);
  max-width: 62ch;
}

#hero ul {
  list-style: none;
  padding: 0;
  margin: var(--space-5) 0 var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

#hero li {
  margin: 0;
  padding: var(--space-2) var(--space-4);
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius-pill);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: transform var(--transition), background var(--transition);
}

#hero li::before {
  content: "✦";
  color: #ffe8b0;
}

#hero li:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.26);
}

#hero > a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  margin: var(--space-2) var(--space-3) var(--space-2) 0;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: transform var(--transition), box-shadow var(--transition),
    background var(--transition), color var(--transition);
}

#hero > a:first-of-type {
  background: #fff;
  color: var(--c-primary-dark);
  box-shadow: 0 14px 30px -12px rgba(0, 0, 0, 0.35);
}

#hero > a:first-of-type:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 20px 40px -14px rgba(0, 0, 0, 0.45);
  color: var(--c-primary-dark);
}

#hero > a:last-of-type {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

#hero > a:last-of-type:hover {
  background: rgba(255, 255, 255, 0.24);
  transform: translateY(-3px);
  color: #fff;
}

main > section > h3 {
  margin-top: var(--space-6);
  padding-left: var(--space-3);
  border-left: 3px solid var(--c-accent);
  line-height: 1.4;
}

main > section > h3:first-of-type {
  margin-top: var(--space-2);
}

#products ul,
#notice ul,
#howto ul {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  list-style: none;
  padding: 0;
}

#products ul li,
#notice ul li,
#howto ul li {
  margin: 0;
  padding: var(--space-4);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  color: var(--c-text-soft);
  box-shadow: 0 6px 20px -14px var(--c-shadow);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
}

#products ul li:hover,
#notice ul li:hover,
#howto ul li:hover {
  transform: translateY(-4px);
  border-color: rgba(230, 57, 70, 0.4);
  box-shadow: 0 16px 34px -18px var(--c-shadow-strong);
}

#notice ul li {
  border-left: 4px solid var(--c-accent);
}

#howto ol {
  counter-reset: step;
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

#howto ol li {
  counter-increment: step;
  position: relative;
  margin: 0;
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-8);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  box-shadow: 0 6px 20px -14px var(--c-shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

#howto ol li::before {
  content: counter(step);
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--grad-accent);
  color: #fff;
  font-weight: 800;
  font-size: 0.9rem;
}

#howto ol li:hover {
  transform: translateX(4px);
  box-shadow: 0 14px 30px -16px var(--c-shadow-strong);
}

#cases blockquote {
  position: relative;
  padding-left: var(--space-6);
}

#cases blockquote::before {
  content: "“";
  position: absolute;
  left: var(--space-3);
  top: -6px;
  font-size: 3rem;
  line-height: 1;
  color: var(--c-primary);
  opacity: 0.4;
  font-family: Georgia, serif;
}

#news,
#articles {
  display: grid;
  gap: var(--space-4);
}

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

#news article,
#articles article {
  padding: var(--space-5);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 26px -18px var(--c-shadow);
  transition: transform var(--transition), box-shadow var(--transition),
    border-color var(--transition);
  position: relative;
  overflow: hidden;
}

#news article::before,
#articles article::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--grad-accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

#news article:hover,
#articles article:hover {
  transform: translateY(-5px);
  border-color: rgba(230, 57, 70, 0.35);
  box-shadow: 0 20px 44px -22px var(--c-shadow-strong);
}

#news article:hover::before,
#articles article:hover::before {
  transform: scaleY(1);
}

#news article h3,
#articles article h3 {
  margin-bottom: var(--space-2);
  color: var(--c-text);
  transition: color var(--transition);
}

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

#articles article > a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  font-size: 0.9rem;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  background: rgba(230, 57, 70, 0.1);
  transition: background var(--transition), transform var(--transition),
    gap var(--transition);
}

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

#articles article > a:hover {
  background: var(--grad-accent);
  color: #fff;
  transform: translateY(-2px);
}

#articles article > a:hover::after {
  transform: translateX(4px);
}

#faq details {
  animation: fadeUp 0.5s ease both;
}

#faq details:nth-of-type(2n) {
  animation-delay: 0.04s;
}
#faq details:nth-of-type(3n) {
  animation-delay: 0.08s;
}

#sitemap ul,
#links ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

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

#sitemap a,
#links a {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-pill);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--c-text-soft);
  transition: all var(--transition);
}

#sitemap a:hover,
#links a:hover {
  color: #fff;
  background: var(--grad-accent);
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: 0 12px 26px -12px rgba(230, 57, 70, 0.6);
}

#contact p {
  padding: var(--space-2) 0;
  border-bottom: 1px dashed var(--c-border);
  margin: 0;
}

#contact p:last-child {
  border-bottom: none;
}

#contact p:nth-of-type(1)::before {
  content: "🏢 ";
}
#contact p:nth-of-type(2)::before {
  content: "📍 ";
}
#contact p:nth-of-type(3)::before {
  content: "📞 ";
}
#contact p:nth-of-type(4)::before {
  content: "✉️ ";
}
#contact p:nth-of-type(5)::before {
  content: "🤝 ";
}
#contact p:nth-of-type(6)::before {
  content: "🕘 ";
}

footer[role="contentinfo"] {
  margin-top: var(--space-8);
  padding: var(--space-8) var(--space-5) var(--space-6);
  background: var(--grad-hero-deep);
  color: rgba(255, 255, 255, 0.92);
  position: relative;
  overflow: hidden;
}

footer[role="contentinfo"]::before {
  content: "";
  position: absolute;
  inset: -50% auto auto -10%;
  width: 50%;
  height: 200%;
  background: radial-gradient(
    circle at 30% 40%,
    rgba(255, 255, 255, 0.14),
    transparent 60%
  );
  filter: blur(30px);
  pointer-events: none;
}

footer[role="contentinfo"] > section {
  max-width: var(--maxw);
  margin: 0 auto var(--space-6);
  position: relative;
}

footer[role="contentinfo"] h2 {
  color: #fff;
  font-size: 1.15rem;
  padding-left: 0;
}

footer[role="contentinfo"] h2::before {
  display: none;
}

footer[role="contentinfo"] h3 {
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.98rem;
  margin-top: var(--space-4);
}

footer[role="contentinfo"] p {
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: var(--space-2);
  font-size: 0.9rem;
}

footer[role="contentinfo"] a {
  color: #ffe0b0;
}

footer[role="contentinfo"] a:hover {
  color: #fff;
}

footer[role="contentinfo"] > section:first-of-type h2 {
  font-size: 1.7rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, #fff, #ffe0b0);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

footer[role="contentinfo"] > section:first-of-type p:first-of-type {
  font-size: 1.02rem;
  color: rgba(255, 255, 255, 0.92);
  font-weight: 600;
}

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

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.2);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(230, 57, 70, 0.02);
  }
}

@keyframes floatSlow {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(-3%, 4%, 0) scale(1.06);
  }
}

@media (min-width: 720px) {
  #news,
  #articles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  footer[role="contentinfo"] {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: var(--space-6);
    align-items: start;
    padding-left: max(var(--space-5), calc((100vw - var(--maxw)) / 2));
    padding-right: max(var(--space-5), calc((100vw - var(--maxw)) / 2));
  }

  footer[role="contentinfo"] > section {
    margin-bottom: 0;
  }
}

@media (min-width: 1024px) {
  #news {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  #articles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #articles article:nth-child(odd) {
    grid-column: auto;
  }
}

@media (max-width: 860px) {
  nav[aria-label="主导航"] {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding-bottom: var(--space-4);
  }

  nav[aria-label="主导航"] ul {
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: var(--space-2);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }

  nav[aria-label="主导航"] ul::-webkit-scrollbar {
    height: 4px;
  }

  nav[aria-label="主导航"] ul::-webkit-scrollbar-thumb {
    background: var(--c-border-strong);
    border-radius: var(--radius-pill);
  }

  nav[aria-label="主导航"] ul a {
    white-space: nowrap;
    font-size: 0.86rem;
  }

  html {
    scroll-padding-top: 150px;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
    line-height: 1.7;
  }

  main {
    padding: 0 var(--space-4) var(--space-7);
  }

  main > section {
    margin: var(--space-5) 0;
    padding: var(--space-5) var(--space-4);
    border-radius: var(--radius-md);
  }

  #hero {
    border-radius: var(--radius-lg);
    padding: var(--space-6) var(--space-4);
  }

  #hero ul {
    gap: var(--space-2);
  }

  #hero > a {
    width: 100%;
    margin-right: 0;
  }

  h2 {
    padding-left: var(--space-3);
  }

  .topbar {
    justify-content: center;
    text-align: center;
    font-size: 0.76rem;
  }

  .topbar span {
    display: none;
  }

  #products ul,
  #notice ul,
  #howto ul {
    grid-template-columns: 1fr;
  }

  details {
    padding: var(--space-3) var(--space-4);
  }

  summary {
    font-size: 0.94rem;
  }

  #sitemap a,
  #links a {
    padding: var(--space-2) var(--space-3);
    font-size: 0.82rem;
  }

  footer[role="contentinfo"] {
    padding: var(--space-7) var(--space-4) var(--space-5);
  }
}

@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;
  }
}

@media print {
  header[role="banner"],
  footer[role="contentinfo"],
  nav[aria-label="主导航"],
  #hero::before,
  #hero::after {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

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

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