:root {
  --sakura-50: #fff5f8;
  --sakura-100: #ffe4ee;
  --sakura-200: #ffc9dd;
  --sakura-300: #f7c8d8;
  --sakura-400: #f4a7c0;
  --sakura-500: #ec7fa6;
  --sakura-600: #d95f8a;
  --sakura-700: #b84570;
  --sakura-800: #8f3356;
  --sakura-900: #66233d;

  --sky-50: #f2f8ff;
  --sky-100: #e2f0ff;
  --sky-200: #c5e2ff;
  --sky-300: #9ccdff;
  --sky-400: #6fb2f7;
  --sky-500: #4a95e0;
  --sky-600: #3577bd;

  --mint-100: #e6f7f2;
  --mint-200: #c9ede2;
  --mint-300: #a3ddcc;
  --mint-400: #7cc9b4;

  --cream-50: #fffdfa;
  --cream-100: #fff8f0;
  --cream-200: #fdefe0;
  --cream-300: #f7e2cc;

  --neutral-0: #ffffff;
  --neutral-50: #fafafa;
  --neutral-100: #f4f4f6;
  --neutral-200: #e8e8ec;
  --neutral-300: #d4d4da;
  --neutral-400: #a8a8b3;
  --neutral-500: #7a7a88;
  --neutral-600: #55555f;
  --neutral-700: #3d3d46;
  --neutral-800: #2a2a32;
  --neutral-850: #1f1f26;
  --neutral-900: #16161c;
  --neutral-950: #0f0f14;

  --text-primary: var(--neutral-800);
  --text-secondary: var(--neutral-600);
  --text-muted: var(--neutral-500);
  --text-inverse: var(--neutral-0);

  --bg-body: var(--cream-50);
  --bg-surface: var(--neutral-0);
  --bg-surface-alt: var(--cream-100);
  --bg-elevated: rgba(255, 255, 255, 0.72);
  --bg-glass: rgba(255, 255, 255, 0.55);
  --bg-glass-strong: rgba(255, 255, 255, 0.78);
  --bg-glass-border: rgba(255, 255, 255, 0.6);
  --bg-overlay: rgba(255, 255, 255, 0.35);

  --border-subtle: rgba(0, 0, 0, 0.06);
  --border-light: rgba(0, 0, 0, 0.09);
  --border-medium: rgba(0, 0, 0, 0.14);

  --shadow-xs: 0 1px 2px rgba(80, 40, 60, 0.04);
  --shadow-sm: 0 2px 8px rgba(80, 40, 60, 0.06);
  --shadow-md: 0 6px 20px rgba(80, 40, 60, 0.08);
  --shadow-lg: 0 14px 40px rgba(80, 40, 60, 0.12);
  --shadow-xl: 0 24px 64px rgba(80, 40, 60, 0.16);
  --shadow-glow: 0 8px 30px rgba(236, 127, 166, 0.25);

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --radius-pill: 999px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue",
    Arial, sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", Georgia, "Times New Roman", serif;

  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.0625rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 1.875rem;
  --fs-3xl: 2.25rem;
  --fs-4xl: 2.75rem;
  --fs-5xl: 3.5rem;

  --lh-tight: 1.3;
  --lh-snug: 1.5;
  --lh-normal: 1.7;
  --lh-relaxed: 1.85;

  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
  --transition-bounce: 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);

  --header-height: 68px;
  --content-max: 1160px;
  --content-wide: 1320px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #ececf1;
    --text-secondary: #b6b6c2;
    --text-muted: #8a8a98;
    --text-inverse: var(--neutral-900);

    --bg-body: #121218;
    --bg-surface: #1a1a22;
    --bg-surface-alt: #20202a;
    --bg-elevated: rgba(38, 38, 48, 0.72);
    --bg-glass: rgba(30, 30, 40, 0.55);
    --bg-glass-strong: rgba(36, 36, 46, 0.82);
    --bg-glass-border: rgba(255, 255, 255, 0.08);
    --bg-overlay: rgba(255, 255, 255, 0.04);

    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-light: rgba(255, 255, 255, 0.1);
    --border-medium: rgba(255, 255, 255, 0.16);

    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 8px 30px rgba(236, 127, 166, 0.18);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--text-primary);
  background-color: var(--bg-body);
  background-image:
    radial-gradient(ellipse 80% 50% at 10% -5%, rgba(247, 200, 216, 0.35), transparent 60%),
    radial-gradient(ellipse 70% 45% at 95% 5%, rgba(156, 205, 255, 0.28), transparent 55%),
    radial-gradient(ellipse 60% 40% at 50% 100%, rgba(163, 221, 204, 0.2), transparent 60%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
}

@media (prefers-color-scheme: dark) {
  body {
    background-image:
      radial-gradient(ellipse 80% 50% at 10% -5%, rgba(184, 69, 112, 0.18), transparent 60%),
      radial-gradient(ellipse 70% 45% at 95% 5%, rgba(53, 119, 189, 0.16), transparent 55%),
      radial-gradient(ellipse 60% 40% at 50% 100%, rgba(124, 201, 180, 0.1), transparent 60%);
  }
}

::selection {
  background: var(--sakura-200);
  color: var(--sakura-900);
}

@media (prefers-color-scheme: dark) {
  ::selection {
    background: var(--sakura-700);
    color: var(--sakura-50);
  }
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--neutral-300);
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--sakura-400);
  background-clip: padding-box;
}

@media (prefers-color-scheme: dark) {
  ::-webkit-scrollbar-thumb {
    background: var(--neutral-700);
    background-clip: padding-box;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: var(--sakura-600);
    background-clip: padding-box;
  }
}

a {
  color: var(--sakura-600);
  text-decoration: none;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

a:hover {
  color: var(--sakura-500);
}

a:focus-visible {
  outline: 2px solid var(--sakura-400);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

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

ul,
ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  line-height: var(--lh-tight);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(1.75rem, 4.5vw, var(--fs-4xl));
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.4rem, 3.2vw, var(--fs-2xl));
}

h3 {
  font-size: clamp(1.1rem, 2.2vw, var(--fs-lg));
}

p {
  margin-bottom: var(--space-4);
  color: var(--text-secondary);
}

p:last-child {
  margin-bottom: 0;
}

time {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: var(--bg-glass-strong);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--bg-glass-border);
  box-shadow: var(--shadow-xs);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

header nav {
  width: 100%;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

header nav > a:first-child {
  font-size: var(--fs-lg);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  position: relative;
  padding: var(--space-1) 0;
}

header nav > a:first-child::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50% 0 50% 50%;
  background: linear-gradient(135deg, var(--sakura-400), var(--sakura-600));
  box-shadow: 0 0 0 3px rgba(236, 127, 166, 0.18);
  transition: transform var(--transition-bounce);
}

header nav > a:first-child:hover::before {
  transform: rotate(45deg) scale(1.15);
}

header nav > a:first-child:hover {
  color: var(--sakura-600);
}

header nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex-wrap: wrap;
  flex: 1;
}

header nav ul li a {
  display: inline-block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  white-space: nowrap;
  position: relative;
  transition: color var(--transition-fast), background var(--transition-fast);
}

header nav ul li a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 0;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--sakura-400), var(--sky-400));
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

header nav ul li a:hover {
  color: var(--sakura-600);
  background: var(--bg-overlay);
}

header nav ul li a:hover::after {
  width: 60%;
}

@media (max-width: 1024px) {
  header nav {
    gap: var(--space-4);
    padding: 0 var(--space-4);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  header nav::-webkit-scrollbar {
    display: none;
  }
  header nav ul {
    flex-wrap: nowrap;
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 60px;
  }
  header nav > a:first-child {
    font-size: var(--fs-base);
  }
  header nav ul li a {
    padding: var(--space-1) var(--space-2);
    font-size: var(--fs-xs);
  }
}

main {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--space-6) var(--space-24);
}

@media (max-width: 640px) {
  main {
    padding: 0 var(--space-4) var(--space-16);
  }
}

main > section {
  margin-bottom: var(--space-16);
  scroll-margin-top: calc(var(--header-height) + 24px);
}

main > section:last-child {
  margin-bottom: var(--space-8);
}

#home {
  position: relative;
  margin-top: var(--space-8);
  padding: var(--space-16) var(--space-12);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg,
      rgba(255, 228, 238, 0.9) 0%,
      rgba(247, 200, 216, 0.75) 25%,
      rgba(197, 226, 255, 0.7) 55%,
      rgba(201, 237, 226, 0.75) 85%,
      rgba(255, 248, 240, 0.9) 100%);
  background-size: 200% 200%;
  animation: gradientShift 18s ease infinite;
  border: 1px solid var(--bg-glass-border);
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.6);
  overflow: hidden;
  isolation: isolate;
}

#home::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle 400px at 15% 20%, rgba(255, 255, 255, 0.5), transparent 70%),
    radial-gradient(circle 300px at 85% 75%, rgba(255, 255, 255, 0.35), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

#home::after {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.55), transparent 70%);
  filter: blur(10px);
  pointer-events: none;
  z-index: -1;
}

#home h1 {
  margin-bottom: var(--space-6);
  color: var(--sakura-900);
  font-weight: 800;
  text-wrap: balance;
}

#home p {
  max-width: 70ch;
  color: var(--neutral-700);
  font-size: var(--fs-md);
  line-height: var(--lh-relaxed);
}

#home p + p {
  margin-top: var(--space-4);
}

@media (prefers-color-scheme: dark) {
  #home {
    background:
      linear-gradient(135deg,
        rgba(184, 69, 112, 0.35) 0%,
        rgba(143, 51, 86, 0.28) 25%,
        rgba(53, 119, 189, 0.25) 55%,
        rgba(124, 201, 180, 0.2) 85%,
        rgba(32, 32, 42, 0.5) 100%);
    box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  }
  #home::before {
    background:
      radial-gradient(circle 400px at 15% 20%, rgba(255, 255, 255, 0.06), transparent 70%),
      radial-gradient(circle 300px at 85% 75%, rgba(255, 255, 255, 0.04), transparent 70%);
  }
  #home::after {
    background: radial-gradient(circle, rgba(236, 127, 166, 0.15), transparent 70%);
  }
  #home h1 {
    color: var(--sakura-100);
  }
  #home p {
    color: var(--text-secondary);
  }
}

@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@media (max-width: 768px) {
  #home {
    padding: var(--space-10) var(--space-6);
    border-radius: var(--radius-lg);
  }
}

@media (max-width: 480px) {
  #home {
    padding: var(--space-8) var(--space-5);
    margin-top: var(--space-4);
  }
}

main > section:not(#home) {
  padding: var(--space-10) var(--space-8);
  border-radius: var(--radius-lg);
  background: var(--bg-glass);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid var(--bg-glass-border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base),
    border-color var(--transition-base);
}

main > section:not(#home):hover {
  box-shadow: var(--shadow-md);
  border-color: var(--sakura-200);
}

@media (prefers-color-scheme: dark) {
  main > section:not(#home):hover {
    border-color: rgba(236, 127, 166, 0.25);
  }
}

@media (max-width: 768px) {
  main > section:not(#home) {
    padding: var(--space-8) var(--space-5);
    border-radius: var(--radius-md);
  }
}

@media (max-width: 480px) {
  main > section:not(#home) {
    padding: var(--space-6) var(--space-4);
  }
}

main > section > h2 {
  position: relative;
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-6);
}

main > section > h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 4px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--sakura-400), var(--sky-400), var(--mint-300));
  transition: width var(--transition-slow);
}

main > section:hover > h2::after {
  width: 96px;
}

main > section h3 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
  color: var(--sakura-700);
  position: relative;
  padding-left: var(--space-4);
}

main > section h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 4px;
  height: 1em;
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, var(--sakura-400), var(--sky-400));
}

main > section h3:first-of-type {
  margin-top: 0;
}

@media (prefers-color-scheme: dark) {
  main > section h3 {
    color: var(--sakura-300);
  }
}

main > section p {
  max-width: 78ch;
}

#products,
#solutions,
#applications,
#cases,
#testimonials,
#faq {
  position: relative;
}

#products h3,
#solutions h3,
#applications h3,
#cases h3 {
  background: var(--bg-surface);
  padding: var(--space-5) var(--space-5) var(--space-5) var(--space-6);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-base), box-shadow var(--transition-base),
    border-color var(--transition-base);
  margin-top: var(--space-6);
}

#products h3:hover,
#solutions h3:hover,
#applications h3:hover,
#cases h3:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--sakura-200);
}

#products h3 + p,
#solutions h3 + p,
#applications h3 + p,
#cases h3 + p {
  padding: var(--space-4) var(--space-6) var(--space-5);
  margin-top: calc(var(--space-2) * -1);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  margin-bottom: var(--space-5);
}

@media (prefers-color-scheme: dark) {
  #products h3:hover,
  #solutions h3:hover,
  #applications h3:hover,
  #cases h3:hover {
    border-color: rgba(236, 127, 166, 0.3);
  }
}

#product-advantages h3 {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-left: 0;
}

#product-advantages h3::before {
  position: static;
  width: 34px;
  height: 34px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--sakura-200), var(--sky-200));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  font-weight: 800;
  color: var(--sakura-700);
  content: "✦";
  line-height: 1;
}

@media (prefers-color-scheme: dark) {
  #product-advantages h3::before {
    background: linear-gradient(135deg, rgba(236, 127, 166, 0.3), rgba(111, 178, 247, 0.25));
    color: var(--sakura-200);
  }
}

#testimonials h3 {
  margin-top: var(--space-8);
}

#testimonials p {
  position: relative;
  padding: var(--space-5) var(--space-6) var(--space-5) var(--space-10);
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-xs);
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

#testimonials p::before {
  content: "\201C";
  position: absolute;
  left: var(--space-4);
  top: var(--space-3);
  font-size: 2.4rem;
  line-height: 1;
  font-family: var(--font-serif);
  color: var(--sakura-300);
  opacity: 0.8;
}

#testimonials p:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

#news h3 {
  margin-top: var(--space-8);
  padding-bottom: var(--space-2);
  border-bottom: 1px dashed var(--border-light);
}

#news h3 + p {
  margin-top: var(--space-1);
  margin-bottom: var(--space-2);
}

#news p a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: var(--fs-sm);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--sakura-100), var(--sky-100));
  color: var(--sakura-700);
  transition: all var(--transition-base);
}

#news p a::after {
  content: "→";
  transition: transform var(--transition-base);
}

#news p a:hover {
  background: linear-gradient(135deg, var(--sakura-200), var(--sky-200));
  color: var(--sakura-800);
  box-shadow: var(--shadow-glow);
}

#news p a:hover::after {
  transform: translateX(4px);
}

@media (prefers-color-scheme: dark) {
  #news p a {
    background: linear-gradient(135deg, rgba(236, 127, 166, 0.18), rgba(111, 178, 247, 0.15));
    color: var(--sakura-200);
  }
  #news p a:hover {
    background: linear-gradient(135deg, rgba(236, 127, 166, 0.3), rgba(111, 178, 247, 0.25));
    color: var(--sakura-100);
  }
}

#articles article {
  position: relative;
  padding: var(--space-6);
  margin-bottom: var(--space-5);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-base), box-shadow var(--transition-base),
    border-color var(--transition-base);
  overflow: hidden;
}

#articles article::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--sakura-400), var(--sky-400));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition-base);
}

#articles article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--sakura-200);
}

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

#articles article h3 {
  margin-top: 0;
  margin-bottom: var(--space-2);
  padding-left: 0;
  font-size: var(--fs-lg);
  color: var(--text-primary);
}

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

#articles article p {
  max-width: 72ch;
}

#articles article p a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  font-size: var(--fs-sm);
  margin-top: var(--space-2);
}

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

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

@media (prefers-color-scheme: dark) {
  #articles article:hover {
    border-color: rgba(236, 127, 166, 0.3);
  }
}

#faq h3 {
  position: relative;
  padding: var(--space-5) var(--space-6);
  margin-top: var(--space-4);
  margin-bottom: 0;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  cursor: pointer;
  font-size: var(--fs-base);
  color: var(--text-primary);
  transition: background var(--transition-fast), color var(--transition-fast);
}

#faq h3::before {
  content: "Q";
  position: static;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-right: var(--space-3);
  border-radius: var(--radius-xs);
  background: linear-gradient(135deg, var(--sakura-400), var(--sakura-600));
  color: #fff;
  font-size: var(--fs-xs);
  font-weight: 800;
  flex-shrink: 0;
  vertical-align: middle;
}

#faq h3:hover {
  background: var(--bg-surface-alt);
  color: var(--sakura-600);
}

#faq h3 + p {
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-4);
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-subtle);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  color: var(--text-secondary);
  max-width: 100%;
}

#howto h3 {
  margin-top: var(--space-8);
}

#howto p {
  position: relative;
  padding-left: var(--space-8);
}

#howto p::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sakura-400), var(--sky-400));
  box-shadow: 0 0 0 3px rgba(236, 127, 166, 0.15);
}

#howto h3:last-of-type + p {
  padding: var(--space-5) var(--space-6);
  background: linear-gradient(135deg, var(--sakura-50), var(--sky-50));
  border-radius: var(--radius-md);
  border: 1px solid var(--sakura-100);
  padding-left: var(--space-6);
}

#howto h3:last-of-type + p::before {
  display: none;
}

@media (prefers-color-scheme: dark) {
  #howto h3:last-of-type + p {
    background: linear-gradient(135deg, rgba(236, 127, 166, 0.1), rgba(111, 178, 247, 0.08));
    border-color: rgba(236, 127, 166, 0.2);
  }
}

#contact p {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--border-subtle);
  max-width: 100%;
  margin-bottom: 0;
}

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

#contact h3 {
  margin-top: var(--space-8);
}

#sitemap ul,
#links ul {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-3);
}

#sitemap ul li a,
#links ul li a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  font-weight: 500;
  transition: all var(--transition-base);
}

#sitemap ul li a::before {
  content: "›";
  color: var(--sakura-400);
  font-weight: 700;
  font-size: var(--fs-lg);
  line-height: 1;
  transition: transform var(--transition-base);
}

#links ul li a::before {
  content: "↗";
  color: var(--sky-400);
  font-weight: 700;
  line-height: 1;
  transition: transform var(--transition-base);
}

#sitemap ul li a:hover,
#links ul li a:hover {
  background: var(--bg-surface-alt);
  border-color: var(--sakura-200);
  color: var(--sakura-600);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

#sitemap ul li a:hover::before,
#links ul li a:hover::before {
  transform: translateX(3px);
}

@media (prefers-color-scheme: dark) {
  #sitemap ul li a:hover,
  #links ul li a:hover {
    border-color: rgba(236, 127, 166, 0.3);
  }
}

#copyright p,
#privacy p,
#disclaimer p {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  max-width: 80ch;
}

#copyright p:last-child {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px dashed var(--border-light);
  font-weight: 600;
  color: var(--text-secondary);
}

footer {
  position: relative;
  margin-top: var(--space-8);
  padding: var(--space-12) var(--space-6) var(--space-8);
  background: var(--bg-glass-strong);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  backdrop-filter: blur(20px) saturate(160%);
  border-top: 1px solid var(--bg-glass-border);
  text-align: center;
}

footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(600px, 80%);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--sakura-300), var(--sky-300), transparent);
  border-radius: var(--radius-pill);
}

footer p {
  margin-bottom: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--text-muted);
  max-width: 100%;
}

footer p:first-child {
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

footer nav {
  margin-top: var(--space-6);
}

footer nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2) var(--space-5);
}

footer nav ul li a {
  font-size: var(--fs-sm);
  color: var(--text-muted);
  position: relative;
  padding: var(--space-1) 0;
}

footer nav ul li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--sakura-400);
  transition: width var(--transition-base);
}

footer nav ul li a:hover {
  color: var(--sakura-500);
}

footer nav ul li a:hover::after {
  width: 100%;
}

footer nav ul li:not(:last-child)::after {
  display: none;
}

@media (max-width: 640px) {
  footer {
    padding: var(--space-8) var(--space-4) var(--space-6);
  }
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes floatSoft {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(236, 127, 166, 0.3);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(236, 127, 166, 0);
  }
}

main > section {
  animation: fadeInUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
}

#home {
  animation-delay: 0.05s;
}
#about {
  animation-delay: 0.1s;
}
#products {
  animation-delay: 0.15s;
}
#product-advantages {
  animation-delay: 0.2s;
}
#solutions {
  animation-delay: 0.25s;
}
#applications {
  animation-delay: 0.3s;
}
#cases {
  animation-delay: 0.35s;
}
#testimonials {
  animation-delay: 0.4s;
}
#news {
  animation-delay: 0.45s;
}
#articles {
  animation-delay: 0.5s;
}
#faq {
  animation-delay: 0.55s;
}
#howto {
  animation-delay: 0.6s;
}
#contact {
  animation-delay: 0.65s;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (hover: none) {
  #products h3:hover,
  #solutions h3:hover,
  #applications h3:hover,
  #cases h3:hover,
  #articles article:hover,
  #testimonials p:hover {
    transform: none;
  }
}

@media (max-width: 480px) {
  :root {
    --space-16: 48px;
    --space-24: 64px;
  }
  h1 {
    font-size: 1.5rem;
  }
  h2 {
    font-size: 1.25rem;
  }
  h3 {
    font-size: 1.05rem;
  }
  main > section h3 {
    padding-left: var(--space-3);
  }
  #sitemap ul,
  #links ul {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
  }
  #sitemap ul li a,
  #links ul li a {
    padding: var(--space-2) var(--space-3);
    font-size: var(--fs-xs);
  }
}

@media (min-width: 1440px) {
  :root {
    --content-max: 1240px;
    --content-wide: 1400px;
  }
}

@supports not ((-webkit-backdrop-filter: blur(1px)) or (backdrop-filter: blur(1px))) {
  header,
  footer,
  main > section:not(#home) {
    background: var(--bg-surface);
  }
}

@media print {
  header,
  footer,
  #home::before,
  #home::after {
    display: none;
  }
  body {
    background: #fff;
    color: #000;
  }
  main > section {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
  }
}