:root {
  --color-primary: #2b1b4d;
  --color-primary-light: #4a2f7a;
  --color-accent: #e86a92;
  --color-accent-2: #f5c451;
  --color-bg: #f7f5fb;
  --color-bg-alt: #ffffff;
  --color-surface: rgba(255, 255, 255, 0.72);
  --color-surface-solid: #ffffff;
  --color-text: #241a35;
  --color-text-soft: #5a4d6e;
  --color-text-muted: #857a97;
  --color-border: rgba(43, 27, 77, 0.1);
  --color-shadow: rgba(43, 27, 77, 0.12);
  --gradient-hero: linear-gradient(135deg, #2b1b4d 0%, #4a2f7a 45%, #7c3f8f 75%, #e86a92 100%);
  --gradient-accent: linear-gradient(135deg, #e86a92 0%, #f5c451 100%);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-sm: 0 2px 8px rgba(43, 27, 77, 0.06);
  --shadow-md: 0 8px 24px rgba(43, 27, 77, 0.1);
  --shadow-lg: 0 16px 48px rgba(43, 27, 77, 0.16);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --max-width: 1180px;
  --header-height: 68px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --color-primary: #b79ce8;
  --color-primary-light: #d4c2f5;
  --color-accent: #f080a4;
  --color-accent-2: #f8d47a;
  --color-bg: #12101a;
  --color-bg-alt: #1b1727;
  --color-surface: rgba(36, 30, 52, 0.72);
  --color-surface-solid: #241e34;
  --color-text: #ece7f5;
  --color-text-soft: #b5abc7;
  --color-text-muted: #8a809e;
  --color-border: rgba(183, 156, 232, 0.16);
  --color-shadow: rgba(0, 0, 0, 0.5);
  --gradient-hero: linear-gradient(135deg, #1a1230 0%, #2b1b4d 40%, #4a2f7a 70%, #8a3f6f 100%);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.55);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  background-image:
    radial-gradient(circle at 12% 8%, rgba(232, 106, 146, 0.08), transparent 42%),
    radial-gradient(circle at 88% 22%, rgba(245, 196, 81, 0.08), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(74, 47, 122, 0.08), transparent 50%);
  background-attachment: fixed;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover,
a:focus-visible {
  color: var(--color-accent-2);
}

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

h1 { font-size: clamp(1.9rem, 4.2vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.15rem); }
h3 { font-size: clamp(1.15rem, 2.2vw, 1.4rem); }

p {
  margin: 0 0 1.1em;
  color: var(--color-text-soft);
}

ul, ol {
  padding-left: 1.4em;
  color: var(--color-text-soft);
}

li {
  margin-bottom: 0.4em;
}

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

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

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

/* ============ HEADER ============ */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition), box-shadow var(--transition);
}

#site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: var(--header-height);
  flex-wrap: wrap;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo svg {
  transition: transform var(--transition);
  filter: drop-shadow(0 4px 10px rgba(43, 27, 77, 0.25));
}

.brand-logo:hover svg {
  transform: rotate(-6deg) scale(1.06);
}

.brand-name {
  font-size: 1.3rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  letter-spacing: 0.02em;
}

#main-nav {
  flex: 1 1 auto;
  min-width: 0;
}

#main-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

#main-nav a {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.92rem;
  color: var(--color-text-soft);
  font-weight: 500;
  position: relative;
  transition: color var(--transition), background var(--transition), transform var(--transition);
}

#main-nav a:hover,
#main-nav a:focus-visible {
  color: var(--color-text);
  background: var(--color-border);
  transform: translateY(-1px);
}

.site-search {
  display: flex;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  border-radius: 999px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  padding: 3px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.site-search:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(232, 106, 146, 0.15);
}

.site-search input {
  border: none;
  background: transparent;
  padding: 7px 14px;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--color-text);
  width: 200px;
  outline: none;
}

.site-search input::placeholder {
  color: var(--color-text-muted);
}

.site-search button {
  border: none;
  cursor: pointer;
  padding: 7px 18px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  color: #fff;
  background: var(--gradient-accent);
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}

.site-search button:hover {
  transform: scale(1.04);
  filter: brightness(1.08);
  box-shadow: 0 4px 14px rgba(232, 106, 146, 0.4);
}

#mobile-menu-toggle,
#theme-toggle {
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
  flex-shrink: 0;
}

#mobile-menu-toggle:hover,
#theme-toggle:hover {
  background: var(--color-border);
  transform: translateY(-1px);
}

#mobile-menu-toggle {
  display: none;
}

/* ============ MAIN ============ */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px 40px;
}

main > section {
  padding: 56px 0;
  scroll-margin-top: calc(var(--header-height) + 12px);
}

main > section + section {
  border-top: 1px solid var(--color-border);
}

/* ============ HERO ============ */
#hero {
  position: relative;
  margin-top: 28px;
  padding: 64px 44px 52px;
  border-radius: var(--radius-xl);
  background: var(--gradient-hero);
  background-size: 160% 160%;
  color: #fff;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  animation: heroGradient 16s ease infinite;
}

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

#hero::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -80px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 196, 81, 0.4), transparent 65%);
  pointer-events: none;
  animation: floatOrb 12s ease-in-out infinite;
}

#hero::after {
  content: "";
  position: absolute;
  bottom: -120px;
  left: -60px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 106, 146, 0.45), transparent 65%);
  pointer-events: none;
  animation: floatOrb 14s ease-in-out infinite reverse;
}

@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(24px, -24px) scale(1.08); }
}

#hero > * {
  position: relative;
  z-index: 1;
}

#hero h1 {
  color: #fff;
  margin: 0 0 20px;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.25);
  max-width: 900px;
}

.hero-lead {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.05rem;
  max-width: 800px;
  line-height: 1.9;
}

.hero-points {
  list-style: none;
  padding: 0;
  margin: 24px 0 32px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.hero-points li {
  position: relative;
  padding: 12px 16px 12px 42px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: rgba(255, 255, 255, 0.95);
  font-size: 0.94rem;
  margin: 0;
  transition: transform var(--transition), background var(--transition);
}

.hero-points li:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.2);
}

.hero-points li::before {
  content: "✦";
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-accent-2);
  font-size: 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 40px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.96rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.btn-primary {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: 0 8px 24px rgba(232, 106, 146, 0.4);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  color: #fff;
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 32px rgba(232, 106, 146, 0.55);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  color: #fff;
  background: rgba(255, 255, 255, 0.26);
  transform: translateY(-3px);
}

#hero-carousel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

#hero-carousel .slide {
  padding: 22px 20px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}

#hero-carousel .slide:hover {
  transform: translateY(-6px);
  background: rgba(255, 255, 255, 0.18);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.2);
}

#hero-carousel .slide h2 {
  color: var(--color-accent-2);
  font-size: 1.1rem;
  margin: 0 0 8px;
}

#hero-carousel .slide p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.7;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
}

.hero-stats .stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 12px;
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.16);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: transform var(--transition), background var(--transition);
}

.hero-stats .stat:hover {
  transform: translateY(-4px);
  background: rgba(0, 0, 0, 0.24);
}

.stat-num {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--color-accent-2);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.82);
  margin-top: 6px;
  text-align: center;
}

/* ============ ANCHOR NAV ============ */
#anchor-nav {
  margin: 28px 0 0;
  padding: 16px 20px;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

#anchor-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  justify-content: center;
}

#anchor-nav a {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 500;
  color: var(--color-text-soft);
  border: 1px solid transparent;
  transition: all var(--transition);
}

#anchor-nav a:hover,
#anchor-nav a:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: rgba(232, 106, 146, 0.08);
  transform: translateY(-2px);
}

/* ============ CARDS / SECTIONS ============ */
main > section:not(#hero):not(#anchor-nav) {
  position: relative;
}

#brand,
#history,
#culture,
#product,
#advantage,
#solution,
#industry,
#cases,
#reviews,
#news,
#articles,
#knowledge,
#howto,
#faq,
#contact,
#sitemap,
#friend-links {
  padding-left: 32px;
  padding-right: 32px;
  border-radius: var(--radius-lg);
  transition: background var(--transition);
}

main > section > h2 {
  position: relative;
  display: inline-block;
  margin-bottom: 24px;
  padding-bottom: 12px;
}

main > section > h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 4px;
  border-radius: 4px;
  background: var(--gradient-accent);
}

main > section > h3 {
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--color-primary);
}

[data-theme="dark"] main > section > h3 {
  color: var(--color-primary-light);
}

/* ============ REVEAL ANIMATION ============ */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ============ BLOCKQUOTES (reviews) ============ */
#reviews blockquote {
  margin: 0 0 16px;
  padding: 20px 24px 20px 28px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}

#reviews blockquote::before {
  content: "“";
  position: absolute;
  top: 6px;
  right: 20px;
  font-size: 3.4rem;
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.18;
  font-family: Georgia, serif;
}

#reviews blockquote:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
}

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

/* ============ NEWS / ARTICLES ============ */
#news article,
#articles article {
  padding: 22px 24px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  margin-bottom: 16px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

#news article:hover,
#articles article:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(232, 106, 146, 0.35);
}

#news article h3,
#articles article h3 {
  margin: 0 0 6px;
  font-size: 1.12rem;
}

#news article time,
#articles article time {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  background: var(--color-border);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

#articles article a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 6px;
}

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

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

/* ============ FAQ details ============ */
#faq details {
  margin-bottom: 12px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition), border-color var(--transition);
}

#faq details[open] {
  box-shadow: var(--shadow-md);
  border-color: rgba(232, 106, 146, 0.35);
}

#faq summary {
  cursor: pointer;
  padding: 16px 48px 16px 22px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-text);
  list-style: none;
  position: relative;
  transition: color var(--transition), background var(--transition);
  user-select: none;
}

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

#faq summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--color-accent);
  transition: transform var(--transition);
  line-height: 1;
}

#faq details[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

#faq summary:hover {
  color: var(--color-accent);
  background: rgba(232, 106, 146, 0.05);
}

#faq details p {
  margin: 0;
  padding: 0 22px 18px;
  font-size: 0.94rem;
  line-height: 1.85;
  animation: faqFade 0.4s ease;
}

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

/* ============ HOWTO list ============ */
#howto ol {
  counter-reset: howto;
  list-style: none;
  padding: 0;
}

#howto ol li {
  counter-increment: howto;
  position: relative;
  padding: 14px 18px 14px 58px;
  margin-bottom: 10px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}

#howto ol li:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

#howto ol li::before {
  content: counter(howto);
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
}

/* ============ CONTACT ============ */
#contact ul {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
}

#contact ul li {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 0.94rem;
  transition: transform var(--transition), border-color var(--transition);
}

#contact ul li:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

/* ============ SITEMAP / FRIEND LINKS ============ */
#sitemap ul,
#friend-links ul {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

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

#sitemap a,
#friend-links a {
  display: inline-block;
  padding: 7px 16px;
  border-radius: 999px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 0.88rem;
  color: var(--color-text-soft);
  transition: all var(--transition);
}

#sitemap a:hover,
#friend-links a:hover,
#sitemap a:focus-visible,
#friend-links a:focus-visible {
  color: #fff;
  background: var(--gradient-accent);
  border-color: transparent;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(232, 106, 146, 0.3);
}

/* ============ FOOTER ============ */
#site-footer {
  margin-top: 40px;
  background: linear-gradient(180deg, var(--color-primary) 0%, #1a1030 100%);
  color: rgba(255, 255, 255, 0.82);
  padding: 56px 20px 32px;
  position: relative;
  overflow: hidden;
}

#site-footer::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(232, 106, 146, 0.28), transparent 65%);
  pointer-events: none;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
  position: relative;
  z-index: 1;
}

#site-footer section {
  padding: 0;
}

#site-footer h2 {
  font-size: 1rem;
  color: #fff;
  margin: 0 0 12px;
  padding-bottom: 8px;
  position: relative;
}

#site-footer h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 3px;
  border-radius: 3px;
  background: var(--gradient-accent);
}

#site-footer p {
  font-size: 0.86rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.68);
  margin: 0;
}

/* ============ BACK TO TOP ============ */
#back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  background: var(--gradient-accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: inherit;
  box-shadow: 0 8px 24px rgba(232, 106, 146, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.9);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition), box-shadow var(--transition);
  line-height: 1.2;
  padding: 6px;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

#back-to-top:hover,
#back-to-top:focus-visible {
  transform: translateY(-4px) scale(1.06);
  box-shadow: 0 12px 32px rgba(232, 106, 146, 0.6);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .site-search input {
    width: 150px;
  }
  #hero {
    padding: 52px 32px 44px;
  }
}

@media (max-width: 860px) {
  .header-inner {
    gap: 10px;
  }
  #main-nav {
    order: 5;
    flex-basis: 100%;
    display: none;
    padding-top: 8px;
    border-top: 1px solid var(--color-border);
    margin-top: 6px;
  }
  #main-nav.open {
    display: block;
    animation: navSlide 0.3s ease;
  }
  @keyframes navSlide {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }
  #main-nav ul {
    flex-direction: column;
    gap: 2px;
  }
  #main-nav a {
    display: block;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
  }
  #mobile-menu-toggle {
    display: inline-block;
  }
  .site-search {
    order: 4;
    flex-basis: 100%;
    margin-top: 6px;
  }
  .site-search input {
    width: 100%;
    flex: 1;
  }
  .header-inner {
    justify-content: space-between;
  }
  .brand-logo {
    order: 1;
  }
  #theme-toggle {
    order: 2;
  }
  #mobile-menu-toggle {
    order: 3;
  }
  #hero {
    padding: 44px 24px 36px;
    border-radius: var(--radius-lg);
  }
  #hero-carousel {
    grid-template-columns: 1fr;
  }
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  main > section:not(#hero):not(#anchor-nav) {
    padding-left: 20px;
    padding-right: 20px;
  }
  main > section {
    padding: 42px 0;
  }
  #anchor-nav {
    padding: 12px;
  }
  #anchor-nav ul {
    gap: 6px;
  }
  #anchor-nav a {
    padding: 5px 11px;
    font-size: 0.8rem;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }
  .header-inner {
    padding: 8px 14px;
  }
  .brand-name {
    font-size: 1.12rem;
  }
  #hero {
    margin-top: 16px;
    padding: 36px 18px 30px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .btn-primary,
  .btn-secondary {
    width: 100%;
  }
  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .hero-stats .stat {
    padding: 14px 8px;
  }
  .stat-label {
    font-size: 0.74rem;
  }
  main {
    padding: 0 14px 24px;
  }
  main > section:not(#hero):not(#anchor-nav) {
    padding-left: 14px;
    padding-right: 14px;
  }
  #contact ul {
    grid-template-columns: 1fr;
  }
  #back-to-top {
    width: 46px;
    height: 46px;
    right: 14px;
    bottom: 14px;
    font-size: 0.66rem;
  }
  .footer-inner {
    gap: 24px;
  }
  #site-footer {
    padding: 40px 16px 24px;
  }
  #news article,
  #articles article {
    padding: 16px 16px;
  }
  #faq summary {
    padding: 14px 44px 14px 16px;
    font-size: 0.94rem;
  }
  #faq details p {
    padding: 0 16px 16px;
  }
}

@media (max-width: 380px) {
  .hero-stats {
    grid-template-columns: 1fr;
  }
}

/* ============ PRINT ============ */
@media print {
  #site-header,
  #back-to-top,
  #mobile-menu-toggle,
  #theme-toggle,
  .site-search,
  #anchor-nav {
    display: none !important;
  }
  body {
    background: #fff;
    color: #000;
  }
  #hero {
    background: #f0f0f0;
    color: #000;
    box-shadow: none;
  }
  #hero h1,
  .hero-lead,
  #hero-carousel .slide h2,
  #hero-carousel .slide p,
  .hero-points li,
  .stat-num,
  .stat-label {
    color: #000 !important;
  }
  a {
    color: #000;
    text-decoration: underline;
  }
  main > section {
    page-break-inside: avoid;
  }
}